Add QuickJS as a Javascript engine option
https://bellard.org/quickjs
Some benefits over SM:
* Small. We're using 6 or so C files vs 700+ SM91 C++ files.
* Built with Apache CouchDB as opposed having to maintain a separate SM
package, like for RHEL9, for instance, where they dropped support for SM
already. (see https://github.com/apache/couchdb/issues/4154).
* Embedding friendly. Designed from ground-up for embedding. SM has been
updating the C++ API such that we have to keep copy-pasting new versions of
our C++ code every year or so. (see
https://github.com/apache/couchdb/pull/4305).
* Easy to modify to accept Spidermonkey 1.8.5 top level functions for
map/reduce code so we don't have have to parse the JS, AST transform it, and
then re-compile it.
* Configurable runtime feature set - can disable workers, promises and other
API and features which may not work well in a backend JS environment. Some
users may want more, some may want to disable even Date(time) features to
hedge again Spectre-style attacks (spectreattack.com).
* Allows granular time (reduction) tracking if we wanted to provide a runtime
allowance for each function.
* Better sandboxing. Creating a whole JSRuntime takes only 300 microseconds, so
we can afford to do that on reset. JSRuntimes cannot share JS data or object
between them.
* Seems to be faster in preliminary benchmarking with small
concurrent VDU and view builds:
https://gist.github.com/nickva/ed239651114794ebb138b1f16c5f6758
Results seem promising:
- 4x faster than SM 1.8.5
- 5x faster than SM 91
- 6x reduced memory usage per couchjs process (5MB vs 30MB)
* Allows compiling JS bytecode ahead of time a C array of bytes.
QuickJS can be built alongside Spidermonkey and toggled on/off at runtime:
```
./configure --dev --js-engine=quickjs
```
This makes it the default engine. But Spidermonkey can still be set in the
config option.
```
[couchdb]
js_engine = spidermonkey | quickjs
```
To test individual views, without switching the default use the
`javascript_quickjs` language in the design docs. To keep using Spidermonkey
engine after switching the default, can use `javascript_spidermonkey` language
in design docs. However, language selection will reset the view and the view
will have to be rebuilt.
It's also possible to build without Spidermonkey support completely by using:
```
./configure --disable-spidermonkey
```
Issue: https://github.com/apache/couchdb/issues/4448
diff --git a/LICENSE b/LICENSE
index fc0ad58..9961168 100644
--- a/LICENSE
+++ b/LICENSE
@@ -2308,3 +2308,56 @@
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
+For the QuickJS component couch_js/quickjs/quickjs:
+
+QuickJS Javascript Engine
+
+Copyright (c) 2017-2021 Fabrice Bellard
+Copyright (c) 2017-2021 Charlie Gordon
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+
+getline/getdelim functions in couchjs.c
+
+Copyright (c) 2011 The NetBSD Foundation, Inc.
+All rights reserved.
+
+This code is derived from software contributed to The NetBSD Foundation
+by Christos Zoulas.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in the
+ documentation and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGE.
diff --git a/Makefile b/Makefile
index 8995fae..3386d9c 100644
--- a/Makefile
+++ b/Makefile
@@ -15,7 +15,7 @@
# *******************************************************
include version.mk
-
+-include install.mk
REBAR?=$(CURDIR)/bin/rebar
REBAR3?=$(CURDIR)/bin/rebar3
ERLFMT?=$(CURDIR)/bin/erlfmt
@@ -122,8 +122,9 @@
# target: couch - Build CouchDB core, use ERL_COMPILER_OPTIONS to provide custom compiler's options
couch: config.erl
@COUCHDB_VERSION=$(COUCHDB_VERSION) COUCHDB_GIT_SHA=$(COUCHDB_GIT_SHA) $(REBAR) compile $(COMPILE_OPTS)
+ifeq ($(with_spidermonkey), true)
@cp src/couch/priv/couchjs bin/
-
+endif
.PHONY: docs
# target: docs - Build documentation
@@ -227,7 +228,7 @@
--exclude="build/|buck-out/|dist/|_build/|\.git/|\.hg/|\.mypy_cache/|\.nox/|\.tox/|\.venv/|src/rebar/pr2relnotes.py|src/fauxton" \
build-aux/*.py dev/run src/mango/test/*.py src/docs/src/conf.py src/docs/ext/*.py .
--include install.mk
+
ifeq ($(with_nouveau), false)
exclude_nouveau=--exclude nouveau
endif
@@ -392,6 +393,9 @@
@mkdir -p apache-couchdb-$(COUCHDB_VERSION)/share/docs/man
@cp src/docs/build/man/apachecouchdb.1 apache-couchdb-$(COUCHDB_VERSION)/share/docs/man/
+ifeq ($(with_spidermonkey), false)
+ @rm -rf apache-couchdb-$(COUCHDB_VERSION)/src/couch/priv/couch_js
+endif
@tar czf apache-couchdb-$(COUCHDB_VERSION)$(IN_RC).tar.gz apache-couchdb-$(COUCHDB_VERSION)
@echo "Done: apache-couchdb-$(COUCHDB_VERSION)$(IN_RC).tar.gz"
@@ -404,6 +408,14 @@
@$(REBAR) generate # make full erlang release
@cp bin/weatherreport rel/couchdb/bin/weatherreport
+ifeq ($(with_spidermonkey), true)
+ @mkdir rel/couchdb/server
+ @cp src/couch/priv/couchjs rel/couchdb/bin/couchjs
+ @cp share/server/main.js rel/couchdb/server/main.js
+ @cp share/server/main-ast-bypass.js rel/couchdb/server/main-ast-bypass.js
+ @cp share/server/main-coffee.js rel/couchdb/server/main-coffee.js
+endif
+
ifeq ($(with_fauxton), 1)
@mkdir -p rel/couchdb/share/
@cp -R share/www rel/couchdb/share/
diff --git a/Makefile.win b/Makefile.win
index 7123003..219f9bd 100644
--- a/Makefile.win
+++ b/Makefile.win
@@ -15,6 +15,7 @@
# ***************************************************
include version.mk
+-include install.mk
SHELL=cmd.exe
REBAR?=$(CURDIR)/bin/rebar.cmd
@@ -116,7 +117,9 @@
# target: couch - Build CouchDB core, use ERL_COMPILER_OPTIONS to provide custom compiler's options
couch: config.erl
@set COUCHDB_VERSION=$(COUCHDB_VERSION) && set COUCHDB_GIT_SHA=$(COUCHDB_GIT_SHA) && $(REBAR) compile $(COMPILE_OPTS)
+ifeq ($(with_spidermonkey), true)
@copy src\couch\priv\couchjs.exe bin
+endif
.PHONY: docs
@@ -204,7 +207,7 @@
--exclude="build/|buck-out/|dist/|_build/|\.git/|\.hg/|\.mypy_cache/|\.nox/|\.tox/|\.venv/|src/erlfmt|src/rebar/pr2relnotes.py|src/fauxton" \
build-aux dev\run dev\format_*.py src\mango\test src\docs\src\conf.py src\docs\ext .
--include install.mk
+
ifeq ($(with_nouveau), false)
exclude_nouveau=--exclude nouveau
@@ -364,7 +367,13 @@
@echo 'Installing CouchDB into rel\couchdb\ ...'
-@rmdir /s/q rel\couchdb >NUL 2>&1 || true
@$(REBAR) generate
- @copy src\couch\priv\couchjs.exe rel\couchdb\bin
+ifeq ($(with_spidermonkey), true)
+ @mkdir rel\couchdb\server
+ @copy src\couch\priv\couchjs.exe rel\couchdb\bin\couchjs.exe
+ @copy share\server\main.js rel\couchdb\server\main.js
+ @copy share\server\main-ast-bypass.js rel\couchdb\server\main-ast-bypass.js
+ @copy share\server\main-coffee.js rel\couchdb\server\main-coffee.js
+endif
ifeq ($(with_fauxton), 1)
-@mkdir rel\couchdb\share
diff --git a/build-aux/Jenkinsfile.pr b/build-aux/Jenkinsfile.pr
index 16f6712..30a5557 100644
--- a/build-aux/Jenkinsfile.pr
+++ b/build-aux/Jenkinsfile.pr
@@ -20,7 +20,7 @@
cd build
tar -xf ${WORKSPACE}/apache-couchdb-*.tar.gz
cd apache-couchdb-*
-./configure --enable-nouveau --enable-clouseau
+./configure --enable-nouveau --enable-clouseau --js-engine=${JS_ENGINE}
make check || (make build-report && false)
'''
@@ -253,6 +253,10 @@
name 'SM_VSN'
values '78'
}
+ axis {
+ name 'JS_ENGINE'
+ values 'quickjs', 'spidermonkey'
+ }
}
stages {
diff --git a/configure b/configure
index ed54e32..ef6df36 100755
--- a/configure
+++ b/configure
@@ -32,12 +32,14 @@
WITH_CLOUSEAU=0
ERLANG_MD5="false"
SKIP_DEPS=0
+WITH_SPIDERMONKEY="true"
run_erlang() {
erl -noshell -eval "$1" -eval "halt()."
}
COUCHDB_USER="$(whoami 2>/dev/null || echo couchdb)"
+JS_ENGINE=${JS_ENGINE:-"spidermonkey"}
SM_VSN=${SM_VSN:-"91"}
CLOUSEAU_MTH=${CLOUSEAU_MTH:-"dist"}
CLOUSEAU_URI=${CLOUSEAU_URI:-"https://github.com/cloudant-labs/clouseau/releases/download/%s/clouseau-%s-dist.zip"}
@@ -75,6 +77,8 @@
--rebar=PATH use rebar by specified path (version >=2.6.0 && <3.0 required)
--rebar3=PATH use rebar3 by specified path
--erlfmt=PATH use erlfmt by specified path
+ --js-engine=ENGINE use js engine: spidermonkey or quickjs, defaults to spidermonkey
+ --disable-spidermonkey disable spidermonkey, don't try to build it
EOF
}
@@ -221,6 +225,28 @@
printf 'ERROR: "--spidermonkey-version" requires a non-empty argument.\n' >&2
exit 1
;;
+ --js-engine)
+ if [ -n "$2" ]; then
+ eval JS_ENGINE=$2
+ shift 2
+ continue
+ else
+ printf 'ERROR: "--js-engine" requires a non-empty argument.\n' >&2
+ exit 1
+ fi
+ ;;
+ --js-engine=?*)
+ eval JS_ENGINE=${1#*=}
+ ;;
+ --js-engine=)
+ printf 'ERROR: "--js-engine" requires a non-empty argument.\n' >&2
+ exit 1
+ ;;
+ --disable-spidermonkey)
+ WITH_SPIDERMONKEY="false"
+ shift
+ continue
+ ;;
--clouseau-version)
if [ -n "$2" ]; then
@@ -293,12 +319,12 @@
parse_opts $@
-if [ "${ARCH}" = "aarch64" ] && [ "${SM_VSN}" = "60" ]; then
+if [ "${WITH_SPIDERMONKEY}" = "true" ] && [ "${ARCH}" = "aarch64" ] && [ "${SM_VSN}" = "60" ]; then
echo "ERROR: SpiderMonkey 60 is known broken on ARM 64 (aarch64). Use another version instead."
exit 1
fi
-if [ "${ERLANG_OS}" = "unix" ]; then
+if [ "${WITH_SPIDERMONKEY}" = "true" ] && [ "${ERLANG_OS}" = "unix" ]; then
case "${SM_VSN}" in
1.8.5)
SM_HEADERS="js"
@@ -316,11 +342,24 @@
fi
fi
+# If spidermonkey was disabled but JS_ENGINE set to "spidermonkey", reset it to "quickjs"
+if [ "${WITH_SPIDERMONKEY}" = "false" ] && [ "${JS_ENGINE}" = "spidermonkey" ]; then
+ echo "NOTICE: Spidermonkey was disabled, but JS_ENGINE=spidermonkey. Setting JS_ENGINE=quickjs"
+ JS_ENGINE="quickjs"
+fi
+
# If we're in a release tarball and we don't have proper, then mark it as skipped
if [ ! -d .git ] && [ "$WITH_PROPER" = "true" ] && [ ! -d src/proper ]; then
WITH_PROPER="false"
fi
+# If we're in a release tarball and we don't have spidermonkey, then mark it as skipped and enable quickjs
+if [ ! -d .git ] && [ "$WITH_SPIDERMONKEY" = "true" ] && [ ! -d src/couch/priv/couch_js ]; then
+ echo "NOTICE: Spidermonkey was disabled in release tarball. Setting JS_ENGINE=quickjs"
+ WITH_SPIDERMONKEY="false"
+ JS_ENGINE="quickjs"
+fi
+
echo "==> configuring couchdb in rel/couchdb.config"
cat > rel/couchdb.config << EOF
% Licensed under the Apache License, Version 2.0 (the "License"); you may not
@@ -350,7 +389,9 @@
{log_file, "$LOG_FILE"}.
{fauxton_root, "./share/www"}.
{user, "$COUCHDB_USER"}.
+{js_engine, "$JS_ENGINE"}.
{spidermonkey_version, "$SM_VSN"}.
+{with_spidermonkey, "$WITH_SPIDERMONKEY"}.
{node_name, "-name couchdb@127.0.0.1"}.
{cluster_port, 5984}.
{backend_port, 5986}.
@@ -380,13 +421,17 @@
with_clouseau = $WITH_CLOUSEAU
user = $COUCHDB_USER
+js_engine = $JS_ENGINE
spidermonkey_version = $SM_VSN
+with_spidermonkey = $WITH_SPIDERMONKEY
EOF
cat > $rootdir/config.erl << EOF
{with_proper, $WITH_PROPER}.
{erlang_md5, $ERLANG_MD5}.
+{js_engine, "$JS_ENGINE"}.
{spidermonkey_version, "$SM_VSN"}.
+{with_spidermonkey, "$WITH_SPIDERMONKEY"}.
EOF
install_local_rebar() {
diff --git a/configure.ps1 b/configure.ps1
index 2af81b6..853beea 100644
--- a/configure.ps1
+++ b/configure.ps1
@@ -7,11 +7,13 @@
-DisableFauxton request build process skip building Fauxton (default false)
-DisableDocs request build process skip building documentation (default false)
+ -DisableSpiderMonkey do not use SpiderMonkey as JS engine (default false)
-EnableNouveau enable the new experiemtal search module (default false)
-EnableClouseau enable the Clouseau search module (default false)
-SkipDeps do not update Erlang dependencies (default false)
-CouchDBUser USER set the username to run as (defaults to current user)
-SpiderMonkeyVersion VSN select the version of SpiderMonkey to use (default 91)
+ -JSEngine ENGINE select JS engine to use (spidermonkey or quickjs) (default spidermonkey)
-ClouseauVersion VSN select the version of Clouseau to use (default 2.22.0)
-ClouseauMethod MTH method for Clouseau to deploy: git or dist (default dist)
-ClouseauUri URI location for retrieving Clouseau (default https://github.com/cloudant-labs/clouseau/releases/download/2.22.0/clouseau-2.22.0-dist.zip)
@@ -52,6 +54,7 @@
[switch]$EnableClouseau = $false, # do not use Clouseau by default
[switch]$SkipDeps = $false, # do not update erlang dependencies
[switch]$DisableProper = $false, # a compilation pragma. proper is a kind of automated test suite
+ [switch]$DisableSpiderMonkey = $false, # do not use SpiderMonkey as JS engine
[switch]$EnableErlangMD5 = $false, # don't use Erlang for md5 hash operations by default
[ValidateNotNullOrEmpty()]
@@ -59,6 +62,8 @@
[ValidateNotNullOrEmpty()]
[string]$SpiderMonkeyVersion = "91", # select the version of SpiderMonkey to use (default 91)
[ValidateNotNullOrEmpty()]
+ [string]$JSEngine = "spidermonkey", # select the JS engine (spidermonkey | quickjs) to use (default spidermonkey)
+ [ValidateNotNullOrEmpty()]
[string]$ClouseauMethod = "dist", # method for Clouseau to deploy: git or dist (default dist)
[ValidateNotNullOrEmpty()]
[string]$ClouseauVersion = "2.22.0", # select the version of Clouseau to use (default 2.22.0)
@@ -145,6 +150,17 @@
$Hostname = [System.Net.Dns]::GetHostEntry([string]"localhost").HostName
$WithProper = (-not $DisableProper).ToString().ToLower()
$ErlangMD5 = ($EnableErlangMD5).ToString().ToLower()
+$WithSpiderMonkey = (-not $DisableSpiderMonkey).ToString().ToLower()
+
+if ($JSEngine -eq "quickjs") {
+ $WithSpiderMonkey = "false"
+}
+
+# If spidermonkey was disabled but JS_ENGINE set to "spidermonkey", reset it to "quickjs"
+if ( ($WithSpiderMonkey -eq "false" ) -and ($JsEngine -eq "spidermonkey" ) ) {
+ Write-Verbose "NOTICE: Spidermonkey was disabled, but JsEngine=spidermonkey. Setting JsEngine=quickjs"
+ $JsEngine = "quickjs"
+}
Write-Verbose "==> configuring couchdb in rel\couchdb.config"
$CouchDBConfig = @"
@@ -175,7 +191,9 @@
{log_file, ""}.
{fauxton_root, "./share/www"}.
{user, "$CouchDBUser"}.
+{js_engine, "$JSEngine"}.
{spidermonkey_version, "$SpiderMonkeyVersion"}.
+{with_spidermonkey, "$WithSpiderMonkey"}.
{node_name, "-name couchdb@127.0.0.1"}.
{cluster_port, 5984}.
{backend_port, 5986}.
@@ -221,14 +239,19 @@
with_clouseau = $WithClouseau
user = $CouchDBUser
+
+js_engine = $JSEngine
spidermonkey_version = $SpiderMonkeyVersion
+with_spidermonkey = $WithSpiderMonkey
"@
$InstallMk | Out-File "$rootdir\install.mk" -encoding ascii
$ConfigERL = @"
{with_proper, $WithProper}.
{erlang_md5, $ErlangMD5}.
+{js_engine, "$JSEngine"}.
{spidermonkey_version, "$SpiderMonkeyVersion"}.
+{with_spidermonkey, "$WithSpiderMonkey"}.
"@
$ConfigERL | Out-File "$rootdir\config.erl" -encoding ascii
diff --git a/rebar.config.script b/rebar.config.script
index 4e94603..60ae448 100644
--- a/rebar.config.script
+++ b/rebar.config.script
@@ -113,6 +113,7 @@
"src/b64url",
"src/exxhash",
"src/ets_lru",
+ "src/couch_quickjs",
"src/chttpd",
"src/couch",
"src/couch_event",
diff --git a/rel/overlay/etc/default.ini b/rel/overlay/etc/default.ini
index dcef7c7..8c345b6 100644
--- a/rel/overlay/etc/default.ini
+++ b/rel/overlay/etc/default.ini
@@ -100,6 +100,9 @@
; checksums can be read and verified.
;write_xxhash_checksums = false
+; Javascript engine. The choices are: spidermonkey and quickjs
+;js_engine = spidermonkey
+
[purge]
; Allowed maximum number of documents in one purge request
;max_document_id_number = 100
@@ -931,6 +934,11 @@
;max_idle = 600000
;enable = true
+[quickjs]
+; Memory limit in bytes. Default is undefined and so the built-in C default
+; of 64MB is used
+;memory_limit_bytes = 67108864
+
[couch_scanner]
; How often to check for configuration changes and start/stop plugins
;interval_sec = 5
@@ -961,6 +969,7 @@
[couch_scanner_plugins]
;couch_scanner_plugin_ddoc_features = false
;couch_scanner_plugin_find = false
+;couch_quickjs_scanner_plugin = false
; The following [$plugin*] settings apply to all plugins
@@ -1026,3 +1035,29 @@
; are too many design documents, that may generate a lot of logs. The default
; is to aggregate reports per database.
;ddoc_report = false
+
+[couch_quickjs_scanner_plugin]
+; Limit the number of ddocs processed per db
+;max_ddocs = 100
+
+; Limit the number of shards processed per db
+;max_shards = 4
+
+; Limit the number of docs processed per db
+;max_docs = 1000
+
+; Limit the maximum step size when processing docs. Given that total number of
+; documents in a shard as N, if the max_docs is M, then the step S = N / M.
+; Then only every S documents will be sampled and processed.
+;max_step = 1000
+
+; Configure batch size, either using the doc count or memory size
+;max_batch_items = 100
+;max_batch_size = 16777216
+
+; Common scanner scheduling settings
+;after = restart
+;repeat = restart
+
+; Scanner settings to skip dbs and docs would also work:
+;[couch_quickjs_scanner_plugin.skip_{dbs,ddoc,docs}]
diff --git a/rel/reltool.config b/rel/reltool.config
index abd758a..ac50fea 100644
--- a/rel/reltool.config
+++ b/rel/reltool.config
@@ -29,6 +29,7 @@
%% couchdb
b64url,
exxhash,
+ couch_quickjs,
chttpd,
config,
couch,
@@ -93,6 +94,7 @@
%% couchdb
{app, b64url, [{incl_cond, include}]},
{app, exxhash, [{incl_cond, include}]},
+ {app, couch_quickjs, [{incl_cond, include}]},
{app, chttpd, [{incl_cond, include}]},
{app, config, [{incl_cond, include}]},
{app, couch, [{incl_cond, include}]},
@@ -140,10 +142,6 @@
{mkdir, "var/log"},
{copy, "overlay/bin"},
{copy, "overlay/etc"},
- {copy, "../src/couch/priv/couchjs", "bin/couchjs"},
- {copy, "../share/server/main.js", "share/server/main.js"},
- {copy, "../share/server/main-ast-bypass.js", "share/server/main-ast-bypass.js"},
- {copy, "../share/server/main-coffee.js", "share/server/main-coffee.js"},
{copy, "../src/weatherreport/weatherreport", "bin/weatherreport"},
{copy, "files/sys.config", "releases/\{\{rel_vsn\}\}/sys.config"},
{copy, "files/vm.args", "releases/\{\{rel_vsn\}\}/vm.args"},
diff --git a/share/server/dispatch-quickjs.js b/share/server/dispatch-quickjs.js
new file mode 100644
index 0000000..fc159f4
--- /dev/null
+++ b/share/server/dispatch-quickjs.js
@@ -0,0 +1,196 @@
+// Licensed under the Apache License, Version 2.0 (the "License"); you may not
+// use this file except in compliance with the License. You may obtain a copy of
+// the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+// License for the specific language governing permissions and limitations under
+// the License.
+
+function create_sandbox() {
+ var sandbox = {};
+ sandbox.emit = Views.emit;
+ sandbox.sum = Views.sum;
+ sandbox.log = log;
+ sandbox.toJSON = JSON.stringify;
+ sandbox.JSON = JSON;
+ sandbox.provides = Mime.provides;
+ sandbox.registerType = Mime.registerType;
+ sandbox.start = Render.start;
+ sandbox.send = Render.send;
+ sandbox.getRow = Render.getRow;
+ sandbox.isArray = isArray;
+ return sandbox;
+};
+
+function create_filter_sandbox() {
+ var sandbox = create_sandbox();
+ sandbox.emit = Filter.emit;
+ return sandbox;
+};
+
+function create_dreyfus_sandbox() {
+ var sandbox = create_sandbox();
+ sandbox.index = Dreyfus.index;
+ return sandbox;
+};
+
+function create_nouveau_sandbox() {
+ var sandbox = create_sandbox();
+ sandbox.index = Nouveau.index;
+ return sandbox;
+};
+
+function seal(obj, flag) {
+ Object.freeze(obj);
+};
+
+// This is a copy from loop.js
+var DDoc = (function() {
+ var ddoc_dispatch = {
+ "lists" : Render.list,
+ "shows" : Render.show,
+ "filters" : Filter.filter,
+ "views" : Filter.filter_view,
+ "updates" : Render.update,
+ "validate_doc_update" : Validate.validate,
+ "rewrites" : Render.rewrite
+ };
+ var ddocs = {};
+ return {
+ ddoc : function() {
+ var args = [];
+ for (var i=0; i < arguments.length; i++) {
+ args.push(arguments[i]);
+ };
+ var ddocId = args.shift();
+ if (ddocId == "new") {
+ // get the real ddocId.
+ ddocId = args.shift();
+ // store the ddoc, functions are lazily compiled.
+ ddocs[ddocId] = args.shift();
+ print("true");
+ } else {
+ // Couch makes sure we know this ddoc already.
+ var ddoc = ddocs[ddocId];
+ if (!ddoc) throw(["fatal", "query_protocol_error", "uncached design doc: "+ddocId]);
+ var funPath = args.shift();
+ var cmd = funPath[0];
+ // the first member of the fun path determines the type of operation
+ var funArgs = args.shift();
+ if (ddoc_dispatch[cmd]) {
+ // get the function, call the command with it
+ var point = ddoc;
+ for (var i=0; i < funPath.length; i++) {
+ if (i+1 == funPath.length) {
+ var fun = point[funPath[i]];
+ if (!fun) {
+ throw(["error","not_found",
+ "missing " + funPath[0] + " function " + funPath[i] +
+ " on design doc " + ddocId]);
+ }
+ if (typeof fun != "function") {
+ // For filter_view we want the emit() function
+ // to be overridden and just toggle a flag instead of
+ // accumulating rows
+ var sandbox = (cmd === "views") ? create_filter_sandbox() : create_sandbox();
+ fun = Couch.compileFunction(fun, ddoc, funPath.join('.'), sandbox);
+ // cache the compiled fun on the ddoc
+ point[funPath[i]] = fun;
+ };
+ } else {
+ point = point[funPath[i]];
+ }
+ };
+
+ // run the correct responder with the cmd body
+ ddoc_dispatch[cmd].apply(null, [fun, ddoc, funArgs]);
+ } else {
+ // unknown command, quit and hope the restarted version is better
+ throw(["fatal", "unknown_command", "unknown ddoc command '" + cmd + "'"]);
+ }
+ }
+ }
+ };
+})();
+
+// This mostly a copy from loop.js handleError
+function handleError(e) {
+ if (e === null) {
+ // internal error, another possibility when out of memory
+ // nothing to do except rethrow and let main.c catch it and exit(1)
+ throw(null);
+ }
+ const type = e[0];
+ if (type == "fatal") {
+ e[0] = "error"; // we tell the client it was a fatal error by dying
+ respond(e);
+ return false;
+ } else if (type == "error") {
+ respond(e);
+ return true;
+ } else if (e.name == "InternalError") {
+ // If the internal error is caught by handleViewError it will be
+ // re-thrown as a ["fatal", ...] error, and we already handle that above.
+ // Here we handle the case when the error is thrown outside of
+ // handleViewError, for instance when serializing the rows to be sent
+ // back to the user
+ respond(["error", e.name, e.message]);
+ return false;
+ } else if (e.error && e.reason) {
+ // compatibility with old error format
+ respond(["error", e.error, e.reason]);
+ return true;
+ } else if (e.name) {
+ respond(["error", e.name, e]);
+ return true;
+ } else {
+ respond(["error","unnamed_error", e.stack]);
+ return true;
+ }
+ };
+
+globalThis.dispatch = function(line) {
+ const cmd = JSON.parse(line);
+ State.line_length = line.length;
+ try {
+ switch (cmd.shift()) {
+ case "ddoc":
+ DDoc.ddoc.apply(null, cmd);
+ break;
+ case "reset":
+ State.reset.apply(null, cmd);
+ break;
+ case "add_fun":
+ State.addFun.apply(null, cmd);
+ break;
+ case "add_lib":
+ State.addLib.apply(null, cmd);
+ break;
+ case "map_doc":
+ Views.mapDoc.apply(null, cmd);
+ break;
+ case "index_doc":
+ Dreyfus.indexDoc.apply(null, cmd);
+ break;
+ case "nouveau_index_doc":
+ Nouveau.indexDoc.apply(null, cmd);
+ break;
+ case "reduce":
+ Views.reduce.apply(null, cmd);
+ break;
+ case "rereduce":
+ Views.rereduce.apply(null, cmd);
+ break;
+ default:
+ // unknown command, quit and hope the restarted version is better
+ throw(["fatal", "unknown_command", "unknown command '" + cmdkey + "'"]);
+ }
+ } catch(e) {
+ return handleError(e);
+ };
+ return true;
+};
diff --git a/share/server/dreyfus.js b/share/server/dreyfus.js
index 1d8a029..3aa7249 100644
--- a/share/server/dreyfus.js
+++ b/share/server/dreyfus.js
@@ -20,7 +20,7 @@
} else if (err[0] == "fatal") {
throw(err);
}
- var message = "function raised exception " + err.toSource();
+ var message = "function raised exception " + errstr(err);
if (doc) message += " with doc._id " + doc._id;
log(message);
};
diff --git a/share/server/render.js b/share/server/render.js
index 078a649..bc4c2ca 100644
--- a/share/server/render.js
+++ b/share/server/render.js
@@ -347,7 +347,7 @@
throw(e);
} else {
var logMessage = "function raised error: " +
- e.toSource() + " \n" +
+ errstr(e) + " \n" +
"stacktrace: " + e.stack;
log(logMessage);
throw(["error", errType || "render_error", logMessage]);
diff --git a/share/server/util.js b/share/server/util.js
index c207d0a..a459bf2 100644
--- a/share/server/util.js
+++ b/share/server/util.js
@@ -81,7 +81,7 @@
throw [
"error",
"compilation_error",
- "Module require('" +name+ "') raised error " + e.toSource()
+ "Module require('" +name+ "') raised error " + errstr(e)
];
}
ddoc._module_cache[newModule.id] = newModule.exports;
@@ -106,7 +106,7 @@
throw([
"error",
"compilation_error",
- err.toSource() + " (" + source + ")"
+ errstr(err) + " (" + source + ")"
]);
};
if (typeof(functionObject) == "function") {
@@ -126,13 +126,18 @@
}
};
+function errstr(e) {
+ // toSource() is a Spidermonkey "special"
+ return (e.toSource ? e.toSource() : e.toString());
+};
+
// prints the object as JSON, and rescues and logs any JSON.stringify() related errors
function respond(obj) {
try {
print(JSON.stringify(obj));
} catch(e) {
log("Error converting object to JSON: " + e.toString());
- log("error on obj: "+ obj.toSource());
+ log("error on obj: "+ obj.toString());
}
};
diff --git a/share/server/views.js b/share/server/views.js
index 57cdaf3..4fe3b75 100644
--- a/share/server/views.js
+++ b/share/server/views.js
@@ -76,7 +76,7 @@
} else if (err.name == "InternalError") {
throw(["fatal", err.name, err.message]);
}
- var message = "function raised exception " + err.toSource();
+ var message = "function raised exception " + errstr(err);
if (doc) message += " with doc._id " + doc._id;
log(message);
};
diff --git a/src/chttpd/src/chttpd_node.erl b/src/chttpd/src/chttpd_node.erl
index 3fbface..e0e8fe0 100644
--- a/src/chttpd/src/chttpd_node.erl
+++ b/src/chttpd/src/chttpd_node.erl
@@ -51,6 +51,17 @@
UcaVer = couch_ejson_compare:get_uca_version(),
ColVer = couch_ejson_compare:get_collator_version(),
Hashes = crypto:supports(hashs),
+ EngineName = couch_server:get_js_engine(),
+ JsEngine =
+ case EngineName of
+ <<"spidermonkey">> ->
+ #{
+ name => EngineName,
+ version => couch_server:get_spidermonkey_version()
+ };
+ _Other ->
+ #{name => EngineName}
+ end,
send_json(Req, 200, #{
erlang => #{
version => ?l2b(?COUCHDB_ERLANG_VERSION),
@@ -62,10 +73,7 @@
collation_algorithm_version => couch_util:version_to_binary(UcaVer),
collator_version => couch_util:version_to_binary(ColVer)
},
- javascript_engine => #{
- name => <<"spidermonkey">>,
- version => couch_server:get_spidermonkey_version()
- }
+ javascript_engine => JsEngine
});
handle_node_req(#httpd{path_parts = [_, _Node, <<"_versions">>]} = Req) ->
send_method_not_allowed(Req, "GET");
diff --git a/src/couch/rebar.config.script b/src/couch/rebar.config.script
index f1682f6..f236287 100644
--- a/src/couch/rebar.config.script
+++ b/src/couch/rebar.config.script
@@ -56,6 +56,28 @@
[]
end.
+JsEngine = case lists:keyfind(js_engine, 1, CouchConfig) of
+ {_, "spidermonkey"} ->
+ "spidermonkey";
+ {_, "quickjs"} ->
+ "quickjs";
+ {_, InvalidJsEngine} ->
+ io:format(standard_error, "Unsupported default JS engine ~p~n", [InvalidJsEngine]),
+ erlang:halt(1);
+ false ->
+ "spidermonkey"
+end.
+
+WithSpidermonkey = case {lists:keyfind(with_spidermonkey, 1, CouchConfig), JsEngine} of
+ {{_, "false"}, "spidermonkey"} ->
+ io:format(standard_error, "Spidermonkey is disabled, select another default js_enigine ~n", []),
+ erlang:halt(1);
+ {{_, "false"}, _} ->
+ false;
+ {{_, "true"}, _} ->
+ true
+end.
+
SMVsn = case lists:keyfind(spidermonkey_version, 1, CouchConfig) of
{_, "1.8.5"} ->
"1.8.5";
@@ -100,7 +122,10 @@
end.
ConfigSrc = [["#define ", K, " ", V, $\n] || {K, V} <- ConfigH].
ConfigBin = iolist_to_binary(ConfigSrc).
-ok = CopyIfDifferent(CouchJSConfig, ConfigBin).
+case WithSpidermonkey of
+ true -> ok = CopyIfDifferent(CouchJSConfig, ConfigBin);
+ false -> ok
+end.
MD5Config = case lists:keyfind(erlang_md5, 1, CouchConfig) of
{erlang_md5, true} ->
@@ -206,9 +231,12 @@
ComparePath = "priv/couch_ejson_compare.so".
CompareSrc = ["priv/couch_ejson_compare/*.c"].
-BaseSpecs = [
- %% couchjs
- {".*", CouchJSPath, CouchJSSrc, [{env, CouchJSEnv}]},
+SpidermonkeySpecs = case WithSpidermonkey of
+ true -> [{".*", CouchJSPath, CouchJSSrc, [{env, CouchJSEnv}]}];
+ false -> []
+end.
+
+BaseSpecs = SpidermonkeySpecs ++ [
% ejson_compare
{"darwin", ComparePath, CompareSrc, [{env, IcuEnv ++ IcuDarwinEnv}]},
{"linux", ComparePath, CompareSrc, [{env, IcuEnv}]},
@@ -243,6 +271,8 @@
{erl_opts, PlatformDefines ++ [
{d, 'COUCHDB_VERSION', Version},
{d, 'COUCHDB_GIT_SHA', GitSha},
+ {d, 'COUCHDB_JS_ENGINE', JsEngine},
+ {d, 'COUCHDB_WITH_SPIDERMONKEY', WithSpidermonkey},
{d, 'COUCHDB_SPIDERMONKEY_VERSION', SMVsn},
{i, "../"}
] ++ MD5Config ++ ProperConfig},
diff --git a/src/couch/src/couch.app.src b/src/couch/src/couch.app.src
index 2cd14ea..0401828 100644
--- a/src/couch/src/couch.app.src
+++ b/src/couch/src/couch.app.src
@@ -50,7 +50,8 @@
ioq,
couch_stats,
hyper,
- couch_dist
+ couch_dist,
+ couch_quickjs
]},
{env, [
{httpd_global_handlers, [
diff --git a/src/couch/src/couch_os_process.erl b/src/couch/src/couch_os_process.erl
index afd7e09..bdbd53a 100644
--- a/src/couch/src/couch_os_process.erl
+++ b/src/couch/src/couch_os_process.erl
@@ -92,7 +92,7 @@
case ?JSON_DECODE(Line) of
[<<"log">>, Msg] when is_binary(Msg) ->
% we got a message to log. Log it and continue
- couch_log:info(
+ couch_log:error(
"OS Process ~p Log :: ~s",
[OsProc#os_proc.port, Msg]
),
diff --git a/src/couch/src/couch_proc_manager.erl b/src/couch/src/couch_proc_manager.erl
index 6032289..885a438 100644
--- a/src/couch/src/couch_proc_manager.erl
+++ b/src/couch/src/couch_proc_manager.erl
@@ -143,6 +143,7 @@
ets:insert(?SERVERS, get_servers_from_env("COUCHDB_NATIVE_QUERY_SERVER_")),
ets:insert(?SERVERS, [{"QUERY", {mango_native_proc, start_link, []}}]),
maybe_configure_erlang_native_servers(),
+ configure_js_engine(couch_server:get_js_engine()),
{ok, #state{
config = get_proc_config(),
@@ -535,6 +536,25 @@
ok
end.
+configure_js_engine(<<"quickjs">>) ->
+ ets:insert(?SERVERS, [
+ {"JAVASCRIPT", couch_quickjs:mainjs_cmd()},
+ {"COFFEESCRIPT", couch_quickjs:coffee_cmd()},
+ {"JAVASCRIPT_QUICKJS", couch_quickjs:mainjs_cmd()}
+ ]),
+ case couch_server:with_spidermonkey() of
+ true ->
+ SM_ENV = os:getenv("COUCHDB_QUERY_SERVER_JAVASCRIPT"),
+ ets:insert(?SERVERS, {"JAVASCRIPT_SPIDERMONKEY", SM_ENV});
+ false ->
+ ok
+ end;
+configure_js_engine(<<"spidermonkey">>) ->
+ ets:insert(?SERVERS, [
+ {"JAVASCRIPT_QUICKJS", couch_quickjs:mainjs_cmd()},
+ {"JAVASCRIPT_SPIDERMONKEY", os:getenv("COUCHDB_QUERY_SERVER_JAVASCRIPT")}
+ ]).
+
new_proc_int(From, Lang) when is_binary(Lang) ->
LangStr = binary_to_list(Lang),
case get_query_server(LangStr) of
diff --git a/src/couch/src/couch_server.erl b/src/couch/src/couch_server.erl
index 623b5de..3797249 100644
--- a/src/couch/src/couch_server.erl
+++ b/src/couch/src/couch_server.erl
@@ -28,6 +28,7 @@
-export([lock/2, unlock/1]).
-export([db_updated/1]).
-export([num_servers/0, couch_server/1, couch_dbs_pid_to_name/1, couch_dbs/1]).
+-export([get_js_engine/0, with_spidermonkey/0]).
-export([aggregate_queue_len/0, get_spidermonkey_version/0]).
-export([names/0]).
-export([try_lock/2, unlock/2]).
@@ -90,8 +91,19 @@
lists:foldl(Fun, {0, 0}, lists:seq(1, num_servers())),
[{start_time, ?l2b(Time)}, {dbs_open, Open}].
+get_js_engine() ->
+ list_to_binary(config:get("couchdb", "js_engine", ?COUCHDB_JS_ENGINE)).
+
get_spidermonkey_version() -> list_to_binary(?COUCHDB_SPIDERMONKEY_VERSION).
+with_spidermonkey() ->
+ % The case match is just an extra assert that we got a correctly configured
+ % value from rebar config script
+ case ?COUCHDB_WITH_SPIDERMONKEY of
+ true -> true;
+ false -> false
+ end.
+
sup_start_link(N) ->
gen_server:start_link({local, couch_server(N)}, couch_server, [N], []).
diff --git a/src/couch_quickjs/.gitignore b/src/couch_quickjs/.gitignore
new file mode 100644
index 0000000..d4a9798
--- /dev/null
+++ b/src/couch_quickjs/.gitignore
@@ -0,0 +1,18 @@
+/quickjs/examples/hello
+/quickjs/examples/hello_module
+/quickjs/examples/test_fib
+/quickjs/hello.c
+/quickjs/libquickjs.a
+/quickjs/libquickjs.lto.a
+/quickjs/qjs
+/quickjs/qjsc
+/quickjs/qjscalc
+/quickjs/qjs.exe
+/quickjs/qjsc.exe
+/quickjs/qjscalc.exe
+/quickjs/qjscalc.c
+/quickjs/repl.c
+/quickjs/run-test262
+/quickjs/test_fib.c
+/quickjs/.github
+compile_commands.json
diff --git a/src/couch_quickjs/build_js.escript b/src/couch_quickjs/build_js.escript
new file mode 100644
index 0000000..a176af1
--- /dev/null
+++ b/src/couch_quickjs/build_js.escript
@@ -0,0 +1,117 @@
+%% -*- tab-width: 4;erlang-indent-level: 4;indent-tabs-mode: nil -*-
+%% ex: ft=erlang ts=4 sw=4 et
+
+%% Licensed under the Apache License, Version 2.0 (the "License"); you may not
+%% use this file except in compliance with the License. You may obtain a copy of
+%% the License at
+%%
+%% http://www.apache.org/licenses/LICENSE-2.0
+%%
+%% Unless required by applicable law or agreed to in writing, software
+%% distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+%% WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+%% License for the specific language governing permissions and limitations under
+%% the License.
+%%
+%%
+
+%% Utility script to compile query server .js files into C arrays. Main JS and
+%% Coffeescript files are treated separately. First each is bundled into a
+%% single .js file. Then the file is passed to qjsc to produce the bytecode
+%% array.
+%%
+
+-export([main/1]).
+
+-mode(compile).
+
+main(["compile"]) ->
+ concat_js_files("bundle_mainjs.js", "bundle_coffee.js"),
+ Changed1 = compile_bytecode("bundle_mainjs.js", "couchjs_mainjs_bytecode.c"),
+ Changed2 = compile_bytecode("bundle_coffee.js", "couchjs_coffee_bytecode.c"),
+ case Changed1 orelse Changed2 of
+ true ->
+ % A stupid hack. The compile step is often too quick and
+ % generates .o timestamps with the same 1 second timestamp
+ % as the .c file. During dev work, it means it will
+ % re-compile and re-link everything uncessarily at least
+ % one more time as the port compiler compares timestamps
+ % with the >= operator.
+ timer:sleep(1000),
+ ok;
+ false ->
+ ok
+ end;
+main(["clean"]) ->
+ rm("priv/bundle_*.js"),
+ rm("c_src/couchjs_*_bytecode.c");
+main(Arg) ->
+ io:format(standard_error, "Expected a 'compile' or 'clean' arg. Got:~p", [Arg]),
+ halt(1).
+
+concat_js_files(JsScript, CoffeeScript) ->
+ Prefix = "../../share/server/",
+ JsFiles = [
+ "rewrite_fun.js",
+ "dreyfus.js",
+ "nouveau.js",
+ "filter.js",
+ "mimeparse.js",
+ "render.js",
+ "state.js",
+ "util.js",
+ "validate.js",
+ "views.js"
+ ],
+ Main = JsFiles ++ ["dispatch-quickjs.js"],
+ Coffee = JsFiles ++ ["coffee-script.js", "dispatch-quickjs.js"],
+ concat([Prefix ++ File || File <- Main], "priv/" ++ JsScript),
+ concat([Prefix ++ File || File <- Coffee], "priv/" ++ CoffeeScript),
+ ok.
+
+compile_bytecode(Js, CBytecode) ->
+ % cp_if_different/2 is used to to avoid triggering a re-compile if nothing changed
+ Tmp = CBytecode ++ ".tmp",
+ {ok, Cwd} = file:get_cwd(),
+ CompileCmd = Cwd ++ "/quickjs/qjsc -c -N bytecode -o c_src/" ++ Tmp ++ " priv/" ++ Js,
+ os:cmd(CompileCmd),
+ Changed = cp_if_different("c_src/" ++ Tmp, "c_src/" ++ CBytecode),
+ rm("c_src/" ++ Tmp),
+ Changed.
+
+cp_if_different(From, To) ->
+ Bin = fread(From),
+ case filelib:is_file(To) of
+ true ->
+ case fread(To) of
+ Bin ->
+ false;
+ <<_/binary>> ->
+ ok = fwrite(To, Bin),
+ true
+ end;
+ false ->
+ ok = fwrite(To, Bin),
+ true
+ end.
+
+concat(Sources, Target) ->
+ SourceBins = [fread(P) || P <- Sources],
+ TargetBin = iolist_to_binary(["(function () {\n"] ++ SourceBins ++ ["})();\n"]),
+ fwrite(Target, TargetBin).
+
+fread(Path) ->
+ {ok, Bin} = file:read_file(Path),
+ Bin.
+
+fwrite(Path, Bin) when is_binary(Bin) ->
+ ok = file:write_file(Path, Bin).
+
+rm(Path) ->
+ Fun = fun(F) ->
+ case filelib:is_file(F) of
+ true -> ok = file:delete(F);
+ false -> ok
+ end
+ end,
+ lists:foreach(Fun, filelib:wildcard(Path)).
diff --git a/src/couch_quickjs/c_src/.gitignore b/src/couch_quickjs/c_src/.gitignore
new file mode 100644
index 0000000..934c75c
--- /dev/null
+++ b/src/couch_quickjs/c_src/.gitignore
@@ -0,0 +1,5 @@
+/couchjs_mainjs*.c
+/couchjs_coffee*.c
+/couchjs_mainjs*.d
+/couchjs_coffee*.d
+
diff --git a/src/couch_quickjs/c_src/couchjs.c b/src/couch_quickjs/c_src/couchjs.c
new file mode 100644
index 0000000..d8790d0
--- /dev/null
+++ b/src/couch_quickjs/c_src/couchjs.c
@@ -0,0 +1,471 @@
+// Licensed under the Apache License, Version 2.0 (the "License"); you may not
+// use this file except in compliance with the License. You may obtain a copy of
+// the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+// License for the specific language governing permissions and limitations under
+// the License.
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdbool.h>
+
+#include "quickjs.h"
+#include "quickjs-libc.h"
+
+#define DEFAULT_STACK_SIZE (64L * 1024L * 1024L)
+#define BUF_SIZE 1024
+
+#define USAGE "couchjs [-V|-M memorylimit|-h] <script.js>\n"
+
+#define BAIL(error) {fprintf(stderr, "%s:%d %s\n", __FILE__, __LINE__, error);\
+ exit(EXIT_FAILURE);\
+}
+#define BAILJS(cx, error) {fprintf(stderr, "%s:%d %s\n", __FILE__, __LINE__, error);\
+ js_std_dump_error(cx);\
+ exit(EXIT_FAILURE);\
+}
+
+// These are auto-generated by qjsc
+extern const uint32_t bytecode_size;
+extern const uint8_t bytecode[];
+
+typedef struct {
+ int stack_size;
+} couch_args;
+
+typedef enum {CMD_EMPTY, CMD_DDOC, CMD_RESET, CMD_LIST, CMD_VIEW} CmdType;
+
+static void parse_args(int argc, const char* argv[], couch_args* args)
+{
+ int i = 1;
+ while(i < argc) {
+ if (strncmp("-h", argv[i], 2) == 0) {
+ fprintf(stderr, USAGE);
+ exit(0);
+ } else if (strncmp("-M", argv[i], 2) == 0) {
+ args->stack_size = atoi(argv[++i]);
+ if (args->stack_size <= 1L * 1024L * 1024L) {
+ BAIL("Invalid stack size");
+ }
+ } else if (strncmp("-V", argv[i], 2) == 0) {
+ fprintf(stderr, "quickjs\n");
+ exit(0);
+ } else {
+ break;
+ }
+ i++;
+ }
+}
+
+// Parse the command type. We only care about resets, ddoc operations and
+// making sure wires were not crossed and we ended up in a list streaming
+// sub-command state somehow. See protocol description at:
+// https://docs.couchdb.org/en/stable/query-server/protocol.html
+//
+static CmdType parse_command(char* str, size_t len) {
+ if (len == 0) {
+ return CMD_EMPTY;
+ }
+ if (len >= 8 && strncmp("[\"reset\"", str, 8) == 0) {
+ return CMD_RESET;
+ }
+ if (len >= 7 && strncmp("[\"ddoc\"", str, 7) == 0) {
+ return CMD_DDOC;
+ }
+ if (len >= 11 && strncmp("[\"list_row\"", str, 11) == 0) {
+ return CMD_LIST;
+ }
+ if (len >= 11 && strncmp("[\"list_end\"", str, 11) == 0) {
+ return CMD_LIST;
+ }
+ return CMD_VIEW;
+}
+
+static void add_cx_methods(JSContext* cx) {
+ //TODO: configure some features with env vars of command line switches
+ JS_AddIntrinsicBaseObjects(cx);
+ JS_AddIntrinsicEval(cx);
+ JS_AddIntrinsicJSON(cx);
+ JS_AddIntrinsicRegExp(cx);
+ JS_AddIntrinsicMapSet(cx);
+ JS_AddIntrinsicDate(cx);
+}
+
+// Creates a new JSContext with only the provided sandbox function
+// in its global. Make sure to free the context when done with it.
+//
+static JSContext* make_sandbox(JSContext* cx, JSValue sbox) {
+ JSContext *cx1 = JS_NewContextRaw(JS_GetRuntime(cx));
+ if(!cx1) {
+ return NULL;
+ }
+ add_cx_methods(cx1);
+ JSValue global = JS_GetGlobalObject(cx1);
+
+ int i;
+ JSPropertyEnum *tab;
+ uint32_t tablen;
+ JSValue prop_val;
+
+ int prop_flags = JS_GPN_STRING_MASK | JS_GPN_ENUM_ONLY;
+ if(JS_GetOwnPropertyNames(cx, &tab, &tablen, sbox, prop_flags) < 0){
+ JS_FreeContext(cx1);
+ return NULL;
+ }
+ for(i=0; i < tablen; i++) {
+ prop_val = JS_GetProperty(cx, sbox, tab[i].atom);
+ if (JS_IsException(prop_val)) {
+ goto exception;
+ }
+ JS_SetProperty(cx1, global, tab[i].atom, prop_val);
+ }
+
+ for(i=0; i < tablen; i++) {
+ JS_FreeAtom(cx, tab[i].atom);
+ }
+
+ js_free(cx, tab);
+ JS_FreeValue(cx1, global);
+ return cx1;
+
+exception:
+ for(i = 0; i < tablen; i++) {
+ JS_FreeAtom(cx, tab[i].atom);
+ }
+ js_free(cx, tab);
+ JS_FreeValue(cx1, global);
+ JS_FreeContext(cx1);
+ return NULL;
+}
+
+// This is mostly for test compatibility between engines, and
+// some anti-footgun help for user code. For real sandboxing we rely on
+// destroying and re-creating the whole JSRuntime instance.
+//
+static JSValue js_evalcx(JSContext* cx, JSValueConst this_val, int argc, JSValueConst *argv)
+{
+ size_t strlen;
+ const char *str;
+ const char *name;
+
+ if (argc != 3) {
+ return JS_EXCEPTION;
+ }
+
+ if(!JS_IsObject(argv[1])) {
+ return JS_EXCEPTION;
+ }
+ JSValue sbox = argv[1];
+
+ str = JS_ToCStringLen(cx, &strlen, argv[0]);
+ if(!str) {
+ return JS_EXCEPTION;
+ }
+
+ name = JS_ToCString(cx, argv[2]);
+ if(!name) {
+ JS_FreeCString(cx, str);
+ return JS_EXCEPTION;
+ }
+
+ JSContext *cx1 = make_sandbox(cx, sbox);
+ if(!cx1) {
+ JS_FreeCString(cx, str);
+ JS_FreeCString(cx, name);
+ return JS_EXCEPTION;
+ }
+
+ int flags = JS_EVAL_TYPE_GLOBAL | JS_EVAL_FLAG_BACKTRACE_BARRIER;
+ JSValue res = JS_Eval(cx1, str, strlen, name, flags);
+
+ JS_FreeCString(cx, str);
+ JS_FreeCString(cx, name);
+ JS_FreeContext(cx1);
+ return res;
+}
+
+// Read \n terminated lines from stdin. *line must be malloc-ed buffer of size
+// *linemax. Read stdin one character at a time and if needed will reallocate
+// the *line buffer.
+//
+// On success the characters read will be in *line, and the return value will
+// be the number character read including \n, but not including the final \0.
+// Also, *linemax will contain the current, possible larger realloc-ed buffer
+// size. On failure return -1.
+//
+// On most POSIX systems use a faster getline function, and on Windows use our
+// own vendored copy, adapted from NetBSD tools/compat/getline.c
+//
+static ssize_t linein(char** line, size_t *linemax) {
+#ifdef _WIN32
+ char *ptr, *eptr;
+
+ if (line == NULL || stdin == NULL || linemax == NULL) {
+ return -1;
+ }
+ if (*line == NULL || *linemax <= 1) {
+ return -1;
+ }
+
+ for (ptr = *line, eptr = *line + *linemax;;) {
+ int c = fgetc(stdin);
+ if (c == -1) {
+ if (feof(stdin)) {
+ ssize_t diff = (ssize_t)(ptr - *line);
+ if (diff != 0) {
+ *ptr = '\0';
+ return diff;
+ }
+ }
+ return -1;
+ }
+ *ptr++ = c;
+ if (c == '\n') {
+ *ptr = '\0';
+ return ptr - *line;
+ }
+ if (ptr + 1 > eptr) {
+ char *nline;
+ size_t nlinemax = *linemax * 2;
+ ssize_t d = ptr - *line;
+ if ((nline = realloc(*line, nlinemax)) == NULL) {
+ return -1;
+ }
+ *line = nline;
+ *linemax = nlinemax;
+ eptr = nline + nlinemax;
+ ptr = nline + d;
+ }
+ }
+#else
+ return getline(line, linemax, stdin);
+#endif
+}
+
+// Once list/show features are gone, could avoid this too and just have the
+// dispatch return the list of rows as a response. That way JS can entirely
+// avoid any IO logic, only take rows and return rows in a simple
+// request/response manner.
+//
+static JSValue js_print(JSContext* cx, JSValueConst this_val, int argc, JSValueConst *argv)
+{
+ const char *str;
+ if (argc == 1) {
+ str = JS_ToCString(cx, argv[0]);
+ if (!str) {
+ return JS_UNDEFINED;
+ }
+ fputs(str, stdout);
+ JS_FreeCString(cx, str);
+ } else if (argc > 1) {
+ return JS_EXCEPTION;
+ }
+ fputc('\n', stdout);
+ fflush(stdout);
+ return JS_UNDEFINED;
+}
+
+//TODO: remove when lists/show are gone. The only reason to have this function
+//is to support getRow() for lists.
+//
+static JSValue js_readline(JSContext* cx, JSValueConst this_val, int argc, JSValueConst *argv)
+{
+ if (argc != 0) return JS_EXCEPTION;
+
+ JSValue res;
+ size_t linemax = BUF_SIZE;
+ char* line = malloc(linemax);
+ if(!line) {
+ BAIL("Could not allocate line buffer for list sub-command");
+ }
+ int len;
+ if ((len = linein(&line, &linemax)) != -1) {
+ if (line[len - 1] != '\n') {
+ BAIL("list linein() didn't end in newline");
+ }
+ line[--len] = '\0'; // don't care about the last \n so shorten the string
+ switch (parse_command(line, len)) {
+ case CMD_LIST:
+ res = JS_NewStringLen(cx, (const char*)line, len);
+ break;
+ case CMD_EMPTY:
+ res = JS_NewString(cx, "");
+ break;
+ default:
+ BAIL("unexpected command during list subcommand mode");
+ }
+ free(line);
+ return res;
+ } else {
+ free(line);
+ return JS_EXCEPTION;
+ }
+}
+
+// TODO: This may not be neeed. Mainly for SM API compat to minimize main.js differences
+//
+static JSValue js_gc(JSContext* cx, JSValueConst this_val, int argc, JSValueConst *argv)
+{
+ if (argc != 0) {
+ return JS_EXCEPTION;
+ }
+ JS_RunGC(JS_GetRuntime(cx));
+ return JS_UNDEFINED;
+}
+
+static void free_cx(JSContext* cx) {
+ if (cx == NULL) {
+ return;
+ }
+ JSRuntime* rt = JS_GetRuntime(cx);
+ if (rt == NULL) {
+ BAIL("JSRuntime is unexpectedly NULL");
+ }
+ JS_FreeContext(cx);
+ JS_FreeRuntime(rt);
+}
+
+static JSContext* new_cx(const couch_args* args) {
+ JSRuntime* rt;
+ JSContext* cx;
+
+ rt = JS_NewRuntime();
+ if (rt == NULL) {
+ BAIL("Could not create JSRuntime");
+ }
+
+ JS_SetMemoryLimit(rt, args->stack_size);
+ JS_SetMaxStackSize(rt, args->stack_size);
+
+ cx = JS_NewContextRaw(rt);
+ if (cx == NULL) {
+ BAIL("Could not create JSContext");
+ }
+
+ add_cx_methods(cx);
+ return cx;
+}
+
+// This is what we rely on for sandboxing. On a reset command, blow away
+// the whole runtime instance and re-create it by re-evaluating the bytecode again
+// in a new instance.
+//
+static JSContext* reset_cx(const couch_args* args, JSContext *cx) {
+ JSValue global, obj, val;
+
+ free_cx(cx);
+ cx = new_cx(args);
+
+ global = JS_GetGlobalObject(cx);
+ JS_SetPropertyStr(cx, global, "print", JS_NewCFunction(cx, js_print, "print", 1));
+ JS_SetPropertyStr(cx, global, "readline", JS_NewCFunction(cx, js_readline,"readline", 0));
+ JS_SetPropertyStr(cx, global, "gc", JS_NewCFunction(cx, js_gc, "gc", 0));
+ JS_SetPropertyStr(cx, global, "evalcx", JS_NewCFunction(cx, js_evalcx, "evalcx", 3));
+
+ obj = JS_ReadObject(cx, bytecode, bytecode_size, JS_READ_OBJ_BYTECODE);
+ if (JS_IsException(obj)) {
+ BAILJS(cx, "Error reading bytecode");
+ }
+ val = JS_EvalFunction(cx, obj); // this calls auto-frees obj
+ if (JS_IsException(val)) {
+ BAILJS(cx, "Error evaluating bytecode");
+ }
+ JS_FreeValue(cx, val);
+ JS_FreeValue(cx, global);
+ return cx;
+}
+
+// Dispatch a single command line to the engine. If it weren't for list functions we could have
+// made it return the responses as a result too.
+//
+// The result is a boolean value indicating whether to continue processing or stop and exit.
+//
+static bool dispatch(JSContext* cx, char* str, size_t len) {
+ JSValue global = JS_GetGlobalObject(cx);
+
+ JSValue fun = JS_GetPropertyStr(cx, global, "dispatch");
+ if (JS_IsException(fun)) {
+ BAILJS(cx, "Could not find main dispatch function");
+ }
+ if (!JS_IsFunction(cx, fun)) {
+ BAIL("dispatch is not a function");
+ }
+
+ JSValue argv[] = {JS_NewStringLen(cx, str, len)};
+ JSValue jres = JS_Call(cx, fun, global, 1, argv);
+ if (JS_IsException(jres)) {
+ BAILJS(cx, "couchjs internal error");
+ }
+ if (!JS_IsBool(jres)) {
+ BAIL("dispatch didn't return boolean value");
+ }
+ bool res = JS_VALUE_GET_BOOL(jres);
+
+ JS_FreeValue(cx, jres);
+ JS_FreeValue(cx, argv[0]);
+ JS_FreeValue(cx, fun);
+ JS_FreeValue(cx, global);
+
+ return res;
+}
+
+int main(int argc, const char* argv[])
+{
+ JSContext* view_cx = NULL;
+ JSContext* ddoc_cx = NULL;
+
+ couch_args args = {.stack_size = DEFAULT_STACK_SIZE};
+ parse_args(argc, argv, &args);
+ //load_bytecode(&args);
+
+ size_t linemax = BUF_SIZE;
+ char* line = malloc(linemax);
+ if (!line) {
+ BAIL("Could not allocate line buffer");
+ }
+
+ int len;
+ bool do_continue = true;
+ while (do_continue && (len = linein(&line, &linemax)) != -1) {
+ if (line[len - 1] != '\n') {
+ BAIL("linein() didn't end in newline");
+ }
+ line[--len] = '\0'; // don't care about the last \n so shorten the string
+ switch (parse_command(line, len)) {
+ case CMD_RESET:
+ view_cx = reset_cx(&args, view_cx);
+ do_continue = dispatch(view_cx, line, len);
+ break;
+ case CMD_DDOC:
+ if (ddoc_cx == NULL) {
+ ddoc_cx = reset_cx(&args, NULL);
+ }
+ do_continue = dispatch(ddoc_cx, line, len);
+ break;
+ case CMD_VIEW:
+ if (view_cx == NULL) {
+ view_cx = reset_cx(&args, NULL);
+ }
+ do_continue = dispatch(view_cx, line, len);
+ break;
+ case CMD_EMPTY:
+ do_continue = false;
+ break;
+ case CMD_LIST:
+ BAIL("unexpected list subcommand in the main command loop");
+ }
+ }
+
+ free_cx(view_cx);
+ free_cx(ddoc_cx);
+ free(line);
+
+ return EXIT_SUCCESS;
+}
+
diff --git a/src/couch_quickjs/patches/01-spidermonkey-185-mode.patch b/src/couch_quickjs/patches/01-spidermonkey-185-mode.patch
new file mode 100644
index 0000000..e30bb74
--- /dev/null
+++ b/src/couch_quickjs/patches/01-spidermonkey-185-mode.patch
@@ -0,0 +1,27 @@
+--- quickjs-master/quickjs.c 2024-05-05 13:54:47
++++ quickjs/quickjs.c 2024-05-06 16:56:22
+@@ -29430,10 +29430,24 @@
+ if (s->token.val == TOK_FUNCTION ||
+ (token_is_pseudo_keyword(s, JS_ATOM_async) &&
+ peek_token(s, TRUE) == TOK_FUNCTION)) {
++
++ if (peek_token(s, TRUE) == '(') {
++ /* Spidermonkey 1.8.5 mode: accept top function statements as expressions */
++ if (js_parse_expr(s))
++ return -1;
++ if (s->cur_func->eval_ret_idx >= 0) {
++ /* store the expression value so that it can be returned by eval() */
++ emit_op(s, OP_put_loc);
++ emit_u16(s, s->cur_func->eval_ret_idx);
++ } else {
++ emit_op(s, OP_drop); /* drop the result */
++ }
++ } else {
+ if (js_parse_function_decl(s, JS_PARSE_FUNC_STATEMENT,
+ JS_FUNC_NORMAL, JS_ATOM_NULL,
+ s->token.ptr, s->token.line_num))
+ return -1;
++ }
+ } else if (s->token.val == TOK_EXPORT && fd->module) {
+ if (js_parse_export(s))
+ return -1;
diff --git a/src/couch_quickjs/priv/.gitignore b/src/couch_quickjs/priv/.gitignore
new file mode 100644
index 0000000..e476b42
--- /dev/null
+++ b/src/couch_quickjs/priv/.gitignore
@@ -0,0 +1,2 @@
+bundle_*.js
+couchjs_*
diff --git a/src/couch_quickjs/quickjs/Changelog b/src/couch_quickjs/quickjs/Changelog
new file mode 100644
index 0000000..dd099cd
--- /dev/null
+++ b/src/couch_quickjs/quickjs/Changelog
@@ -0,0 +1,175 @@
+2024-01-13:
+
+- top-level-await support in modules
+- allow 'await' in the REPL
+- added Array.prototype.{with,toReversed,toSpliced,toSorted} and
+TypedArray.prototype.{with,toReversed,toSorted}
+- added String.prototype.isWellFormed and String.prototype.toWellFormed
+- added Object.groupBy and Map.groupBy
+- added Promise.withResolvers
+- class static block
+- 'in' operator support for private fields
+- optional chaining fixes
+- added RegExp 'd' flag
+- fixed RegExp zero length match logic
+- fixed RegExp case insensitive flag
+- added os.sleepAsync(), os.getpid() and os.now()
+- added cosmopolitan build
+- misc bug fixes
+
+2023-12-09:
+
+- added Object.hasOwn, {String|Array|TypedArray}.prototype.at,
+ {Array|TypedArray}.prototype.findLast{Index}
+- BigInt support is enabled even if CONFIG_BIGNUM disabled
+- updated to Unicode 15.0.0
+- misc bug fixes
+
+2021-03-27:
+
+- faster Array.prototype.push and Array.prototype.unshift
+- added JS_UpdateStackTop()
+- fixed Windows console
+- misc bug fixes
+
+2020-11-08:
+
+- improved function parameter initializers
+- added std.setenv(), std.unsetenv() and std.getenviron()
+- added JS_EvalThis()
+- misc bug fixes
+
+2020-09-06:
+
+- added logical assignment operators
+- added IsHTMLDDA support
+- faster for-of loops
+- os.Worker now takes a module filename as parameter
+- qjsc: added -D option to compile dynamically loaded modules or workers
+- misc bug fixes
+
+2020-07-05:
+
+- modified JS_GetPrototype() to return a live value
+- REPL: support unicode characters larger than 16 bits
+- added os.Worker
+- improved object serialization
+- added std.parseExtJSON
+- misc bug fixes
+
+2020-04-12:
+
+- added cross realm support
+- added AggregateError and Promise.any
+- added env, uid and gid options in os.exec()
+- misc bug fixes
+
+2020-03-16:
+
+- reworked error handling in std and os libraries: suppressed I/O
+ exceptions in std FILE functions and return a positive errno value
+ when it is explicit
+- output exception messages to stderr
+- added std.loadFile(), std.strerror(), std.FILE.prototype.tello()
+- added JS_GetRuntimeOpaque(), JS_SetRuntimeOpaque(), JS_NewUint32()
+- updated to Unicode 13.0.0
+- misc bug fixes
+
+2020-01-19:
+
+- keep CONFIG_BIGNUM in the makefile
+- added os.chdir()
+- qjs: added -I option
+- more memory checks in the bignum operations
+- modified operator overloading semantics to be closer to the TC39
+ proposal
+- suppressed "use bigint" mode. Simplified "use math" mode
+- BigDecimal: changed suffix from 'd' to 'm'
+- misc bug fixes
+
+2020-01-05:
+
+- always compile the bignum code. Added '--bignum' option to qjs.
+- added BigDecimal
+- added String.prototype.replaceAll
+- misc bug fixes
+
+2019-12-21:
+
+- added nullish coalescing operator (ES2020)
+- added optional chaining (ES2020)
+- removed recursions in garbage collector
+- test stack overflow in the parser
+- improved backtrace logic
+- added JS_SetHostPromiseRejectionTracker()
+- allow exotic constructors
+- improved c++ compatibility
+- misc bug fixes
+
+2019-10-27:
+
+- added example of C class in a module (examples/test_point.js)
+- added JS_GetTypedArrayBuffer()
+- misc bug fixes
+
+2019-09-18:
+
+- added os.exec and other system calls
+- exported JS_ValueToAtom()
+- qjsc: added 'qjsc_' prefix to the generated C identifiers
+- added cross-compilation support
+- misc bug fixes
+
+2019-09-01:
+
+- added globalThis
+- documented JS_EVAL_FLAG_COMPILE_ONLY
+- added import.meta.url and import.meta.main
+- added 'debugger' statement
+- misc bug fixes
+
+2019-08-18:
+
+- added os.realpath, os.getcwd, os.mkdir, os.stat, os.lstat,
+ os.readlink, os.readdir, os.utimes, std.popen
+- module autodetection
+- added import.meta
+- misc bug fixes
+
+2019-08-10:
+
+- added public class fields and private class fields, methods and
+ accessors (TC39 proposal)
+- changed JS_ToCStringLen() prototype
+- qjsc: handle '-' in module names and modules with the same filename
+- added std.urlGet
+- exported JS_GetOwnPropertyNames() and JS_GetOwnProperty()
+- exported some bigint C functions
+- added support for eshost in run-test262
+- misc bug fixes
+
+2019-07-28:
+
+- added dynamic import
+- added Promise.allSettled
+- added String.prototype.matchAll
+- added Object.fromEntries
+- reduced number of ticks in await
+- added BigInt support in Atomics
+- exported JS_NewPromiseCapability()
+- misc async function and async generator fixes
+- enabled hashbang support by default
+
+2019-07-21:
+
+- updated test262 tests
+- updated to Unicode version 12.1.0
+- fixed missing Date object in qjsc
+- fixed multi-context creation
+- misc ES2020 related fixes
+- simplified power and division operators in bignum extension
+- fixed several crash conditions
+
+2019-07-09:
+
+- first public release
diff --git a/src/couch_quickjs/quickjs/LICENSE b/src/couch_quickjs/quickjs/LICENSE
new file mode 100644
index 0000000..2cf449d
--- /dev/null
+++ b/src/couch_quickjs/quickjs/LICENSE
@@ -0,0 +1,22 @@
+QuickJS Javascript Engine
+
+Copyright (c) 2017-2021 Fabrice Bellard
+Copyright (c) 2017-2021 Charlie Gordon
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/src/couch_quickjs/quickjs/Makefile b/src/couch_quickjs/quickjs/Makefile
new file mode 100644
index 0000000..0270a6a
--- /dev/null
+++ b/src/couch_quickjs/quickjs/Makefile
@@ -0,0 +1,564 @@
+#
+# QuickJS Javascript Engine
+#
+# Copyright (c) 2017-2021 Fabrice Bellard
+# Copyright (c) 2017-2021 Charlie Gordon
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+
+ifeq ($(shell uname -s),Darwin)
+CONFIG_DARWIN=y
+endif
+ifeq ($(shell uname -s),FreeBSD)
+CONFIG_FREEBSD=y
+endif
+# Windows cross compilation from Linux
+#CONFIG_WIN32=y
+# use link time optimization (smaller and faster executables but slower build)
+#CONFIG_LTO=y
+# consider warnings as errors (for development)
+#CONFIG_WERROR=y
+# force 32 bit build for some utilities
+#CONFIG_M32=y
+# cosmopolitan build (see https://github.com/jart/cosmopolitan)
+#CONFIG_COSMO=y
+
+# installation directory
+PREFIX?=/usr/local
+
+# use the gprof profiler
+#CONFIG_PROFILE=y
+# use address sanitizer
+#CONFIG_ASAN=y
+# use memory sanitizer
+#CONFIG_MSAN=y
+# use UB sanitizer
+#CONFIG_UBSAN=y
+
+# include the code for BigFloat/BigDecimal and math mode
+CONFIG_BIGNUM=y
+
+OBJDIR=.obj
+
+ifdef CONFIG_ASAN
+OBJDIR:=$(OBJDIR)/asan
+endif
+ifdef CONFIG_MSAN
+OBJDIR:=$(OBJDIR)/msan
+endif
+ifdef CONFIG_UBSAN
+OBJDIR:=$(OBJDIR)/ubsan
+endif
+
+ifdef CONFIG_DARWIN
+# use clang instead of gcc
+CONFIG_CLANG=y
+CONFIG_DEFAULT_AR=y
+endif
+ifdef CONFIG_FREEBSD
+# use clang instead of gcc
+CONFIG_CLANG=y
+CONFIG_DEFAULT_AR=y
+CONFIG_LTO=
+endif
+
+ifdef CONFIG_WIN32
+ ifdef CONFIG_M32
+ CROSS_PREFIX?=i686-w64-mingw32-
+ else
+ CROSS_PREFIX?=x86_64-w64-mingw32-
+ endif
+ EXE=.exe
+else
+ CROSS_PREFIX?=
+ EXE=
+endif
+
+ifdef CONFIG_CLANG
+ HOST_CC=clang
+ CC=$(CROSS_PREFIX)clang
+ CFLAGS+=-g -Wall -MMD -MF $(OBJDIR)/$(@F).d
+ CFLAGS += -Wextra
+ CFLAGS += -Wno-sign-compare
+ CFLAGS += -Wno-missing-field-initializers
+ CFLAGS += -Wundef -Wuninitialized
+ CFLAGS += -Wunused -Wno-unused-parameter
+ CFLAGS += -Wwrite-strings
+ CFLAGS += -Wchar-subscripts -funsigned-char
+ CFLAGS += -MMD -MF $(OBJDIR)/$(@F).d
+ ifdef CONFIG_DEFAULT_AR
+ AR=$(CROSS_PREFIX)ar
+ else
+ ifdef CONFIG_LTO
+ AR=$(CROSS_PREFIX)llvm-ar
+ else
+ AR=$(CROSS_PREFIX)ar
+ endif
+ endif
+else ifdef CONFIG_COSMO
+ CONFIG_LTO=
+ HOST_CC=gcc
+ CC=cosmocc
+ # cosmocc does not correct support -MF
+ CFLAGS=-g -Wall #-MMD -MF $(OBJDIR)/$(@F).d
+ CFLAGS += -Wno-array-bounds -Wno-format-truncation
+ AR=cosmoar
+else
+ HOST_CC=gcc
+ CC=$(CROSS_PREFIX)gcc
+ CFLAGS+=-g -Wall -MMD -MF $(OBJDIR)/$(@F).d
+ CFLAGS += -Wno-array-bounds -Wno-format-truncation
+ ifdef CONFIG_LTO
+ AR=$(CROSS_PREFIX)gcc-ar
+ else
+ AR=$(CROSS_PREFIX)ar
+ endif
+endif
+STRIP?=$(CROSS_PREFIX)strip
+CFLAGS+=-fwrapv # ensure that signed overflows behave as expected
+ifdef CONFIG_WERROR
+CFLAGS+=-Werror
+endif
+DEFINES:=-D_GNU_SOURCE -DCONFIG_VERSION=\"$(shell cat VERSION)\"
+ifdef CONFIG_BIGNUM
+DEFINES+=-DCONFIG_BIGNUM
+endif
+ifdef CONFIG_WIN32
+DEFINES+=-D__USE_MINGW_ANSI_STDIO # for standard snprintf behavior
+endif
+
+CFLAGS+=$(DEFINES)
+CFLAGS_DEBUG=$(CFLAGS) -O0
+CFLAGS_SMALL=$(CFLAGS) -Os
+CFLAGS_OPT=$(CFLAGS) -O2
+CFLAGS_NOLTO:=$(CFLAGS_OPT)
+ifdef CONFIG_COSMO
+LDFLAGS+=-s # better to strip by default
+else
+LDFLAGS+=-g
+endif
+ifdef CONFIG_LTO
+CFLAGS_SMALL+=-flto
+CFLAGS_OPT+=-flto
+LDFLAGS+=-flto
+endif
+ifdef CONFIG_PROFILE
+CFLAGS+=-p
+LDFLAGS+=-p
+endif
+ifdef CONFIG_ASAN
+CFLAGS+=-fsanitize=address -fno-omit-frame-pointer
+LDFLAGS+=-fsanitize=address -fno-omit-frame-pointer
+endif
+ifdef CONFIG_MSAN
+CFLAGS+=-fsanitize=memory -fno-omit-frame-pointer
+LDFLAGS+=-fsanitize=memory -fno-omit-frame-pointer
+endif
+ifdef CONFIG_UBSAN
+CFLAGS+=-fsanitize=undefined -fno-omit-frame-pointer
+LDFLAGS+=-fsanitize=undefined -fno-omit-frame-pointer
+endif
+ifdef CONFIG_WIN32
+LDEXPORT=
+else
+LDEXPORT=-rdynamic
+endif
+
+ifndef CONFIG_COSMO
+ifndef CONFIG_DARWIN
+CONFIG_SHARED_LIBS=y # building shared libraries is supported
+endif
+endif
+
+PROGS=qjs$(EXE) qjsc$(EXE) run-test262
+ifneq ($(CROSS_PREFIX),)
+QJSC_CC=gcc
+QJSC=./host-qjsc
+PROGS+=$(QJSC)
+else
+QJSC_CC=$(CC)
+QJSC=./qjsc$(EXE)
+endif
+ifndef CONFIG_WIN32
+PROGS+=qjscalc
+endif
+ifdef CONFIG_M32
+PROGS+=qjs32 qjs32_s
+endif
+PROGS+=libquickjs.a
+ifdef CONFIG_LTO
+PROGS+=libquickjs.lto.a
+endif
+
+# examples
+ifeq ($(CROSS_PREFIX),)
+ifndef CONFIG_ASAN
+ifndef CONFIG_MSAN
+ifndef CONFIG_UBSAN
+PROGS+=examples/hello examples/hello_module examples/test_fib
+ifdef CONFIG_SHARED_LIBS
+PROGS+=examples/fib.so examples/point.so
+endif
+endif
+endif
+endif
+endif
+
+all: $(OBJDIR) $(OBJDIR)/quickjs.check.o $(OBJDIR)/qjs.check.o $(PROGS)
+
+QJS_LIB_OBJS=$(OBJDIR)/quickjs.o $(OBJDIR)/libregexp.o $(OBJDIR)/libunicode.o $(OBJDIR)/cutils.o $(OBJDIR)/quickjs-libc.o $(OBJDIR)/libbf.o
+
+QJS_OBJS=$(OBJDIR)/qjs.o $(OBJDIR)/repl.o $(QJS_LIB_OBJS)
+ifdef CONFIG_BIGNUM
+QJS_OBJS+=$(OBJDIR)/qjscalc.o
+endif
+
+HOST_LIBS=-lm -ldl -lpthread
+LIBS=-lm
+ifndef CONFIG_WIN32
+LIBS+=-ldl -lpthread
+endif
+LIBS+=$(EXTRA_LIBS)
+
+$(OBJDIR):
+ mkdir -p $(OBJDIR) $(OBJDIR)/examples $(OBJDIR)/tests
+
+qjs$(EXE): $(QJS_OBJS)
+ $(CC) $(LDFLAGS) $(LDEXPORT) -o $@ $^ $(LIBS)
+
+qjs-debug$(EXE): $(patsubst %.o, %.debug.o, $(QJS_OBJS))
+ $(CC) $(LDFLAGS) -o $@ $^ $(LIBS)
+
+qjsc$(EXE): $(OBJDIR)/qjsc.o $(QJS_LIB_OBJS)
+ $(CC) $(LDFLAGS) -o $@ $^ $(LIBS)
+
+ifneq ($(CROSS_PREFIX),)
+
+$(QJSC): $(OBJDIR)/qjsc.host.o \
+ $(patsubst %.o, %.host.o, $(QJS_LIB_OBJS))
+ $(HOST_CC) $(LDFLAGS) -o $@ $^ $(HOST_LIBS)
+
+endif #CROSS_PREFIX
+
+QJSC_DEFINES:=-DCONFIG_CC=\"$(QJSC_CC)\" -DCONFIG_PREFIX=\"$(PREFIX)\"
+ifdef CONFIG_LTO
+QJSC_DEFINES+=-DCONFIG_LTO
+endif
+QJSC_HOST_DEFINES:=-DCONFIG_CC=\"$(HOST_CC)\" -DCONFIG_PREFIX=\"$(PREFIX)\"
+
+$(OBJDIR)/qjsc.o: CFLAGS+=$(QJSC_DEFINES)
+$(OBJDIR)/qjsc.host.o: CFLAGS+=$(QJSC_HOST_DEFINES)
+
+qjs32: $(patsubst %.o, %.m32.o, $(QJS_OBJS))
+ $(CC) -m32 $(LDFLAGS) $(LDEXPORT) -o $@ $^ $(LIBS)
+
+qjs32_s: $(patsubst %.o, %.m32s.o, $(QJS_OBJS))
+ $(CC) -m32 $(LDFLAGS) -o $@ $^ $(LIBS)
+ @size $@
+
+qjscalc: qjs
+ ln -sf $< $@
+
+ifdef CONFIG_LTO
+LTOEXT=.lto
+else
+LTOEXT=
+endif
+
+libquickjs$(LTOEXT).a: $(QJS_LIB_OBJS)
+ $(AR) rcs $@ $^
+
+ifdef CONFIG_LTO
+libquickjs.a: $(patsubst %.o, %.nolto.o, $(QJS_LIB_OBJS))
+ $(AR) rcs $@ $^
+endif # CONFIG_LTO
+
+repl.c: $(QJSC) repl.js
+ $(QJSC) -c -o $@ -m repl.js
+
+qjscalc.c: $(QJSC) qjscalc.js
+ $(QJSC) -fbignum -c -o $@ qjscalc.js
+
+ifneq ($(wildcard unicode/UnicodeData.txt),)
+$(OBJDIR)/libunicode.o $(OBJDIR)/libunicode.m32.o $(OBJDIR)/libunicode.m32s.o \
+ $(OBJDIR)/libunicode.nolto.o: libunicode-table.h
+
+libunicode-table.h: unicode_gen
+ ./unicode_gen unicode $@
+endif
+
+run-test262: $(OBJDIR)/run-test262.o $(QJS_LIB_OBJS)
+ $(CC) $(LDFLAGS) -o $@ $^ $(LIBS)
+
+run-test262-debug: $(patsubst %.o, %.debug.o, $(OBJDIR)/run-test262.o $(QJS_LIB_OBJS))
+ $(CC) $(LDFLAGS) -o $@ $^ $(LIBS)
+
+run-test262-32: $(patsubst %.o, %.m32.o, $(OBJDIR)/run-test262.o $(QJS_LIB_OBJS))
+ $(CC) -m32 $(LDFLAGS) -o $@ $^ $(LIBS)
+
+# object suffix order: nolto, [m32|m32s]
+
+$(OBJDIR)/%.o: %.c | $(OBJDIR)
+ $(CC) $(CFLAGS_OPT) -c -o $@ $<
+
+$(OBJDIR)/%.host.o: %.c | $(OBJDIR)
+ $(HOST_CC) $(CFLAGS_OPT) -c -o $@ $<
+
+$(OBJDIR)/%.pic.o: %.c | $(OBJDIR)
+ $(CC) $(CFLAGS_OPT) -fPIC -DJS_SHARED_LIBRARY -c -o $@ $<
+
+$(OBJDIR)/%.nolto.o: %.c | $(OBJDIR)
+ $(CC) $(CFLAGS_NOLTO) -c -o $@ $<
+
+$(OBJDIR)/%.m32.o: %.c | $(OBJDIR)
+ $(CC) -m32 $(CFLAGS_OPT) -c -o $@ $<
+
+$(OBJDIR)/%.m32s.o: %.c | $(OBJDIR)
+ $(CC) -m32 $(CFLAGS_SMALL) -c -o $@ $<
+
+$(OBJDIR)/%.debug.o: %.c | $(OBJDIR)
+ $(CC) $(CFLAGS_DEBUG) -c -o $@ $<
+
+$(OBJDIR)/%.check.o: %.c | $(OBJDIR)
+ $(CC) $(CFLAGS) -DCONFIG_CHECK_JSVALUE -c -o $@ $<
+
+regexp_test: libregexp.c libunicode.c cutils.c
+ $(CC) $(LDFLAGS) $(CFLAGS) -DTEST -o $@ libregexp.c libunicode.c cutils.c $(LIBS)
+
+unicode_gen: $(OBJDIR)/unicode_gen.host.o $(OBJDIR)/cutils.host.o libunicode.c unicode_gen_def.h
+ $(HOST_CC) $(LDFLAGS) $(CFLAGS) -o $@ $(OBJDIR)/unicode_gen.host.o $(OBJDIR)/cutils.host.o
+
+clean:
+ rm -f repl.c qjscalc.c out.c
+ rm -f *.a *.o *.d *~ unicode_gen regexp_test $(PROGS)
+ rm -f hello.c test_fib.c
+ rm -f examples/*.so tests/*.so
+ rm -rf $(OBJDIR)/ *.dSYM/ qjs-debug
+ rm -rf run-test262-debug run-test262-32
+ rm -f run_octane run_sunspider_like
+
+install: all
+ mkdir -p "$(DESTDIR)$(PREFIX)/bin"
+ $(STRIP) qjs$(EXE) qjsc$(EXE)
+ install -m755 qjs$(EXE) qjsc$(EXE) "$(DESTDIR)$(PREFIX)/bin"
+ ln -sf qjs$(EXE) "$(DESTDIR)$(PREFIX)/bin/qjscalc$(EXE)"
+ mkdir -p "$(DESTDIR)$(PREFIX)/lib/quickjs"
+ install -m644 libquickjs.a "$(DESTDIR)$(PREFIX)/lib/quickjs"
+ifdef CONFIG_LTO
+ install -m644 libquickjs.lto.a "$(DESTDIR)$(PREFIX)/lib/quickjs"
+endif
+ mkdir -p "$(DESTDIR)$(PREFIX)/include/quickjs"
+ install -m644 quickjs.h quickjs-libc.h "$(DESTDIR)$(PREFIX)/include/quickjs"
+
+###############################################################################
+# examples
+
+# example of static JS compilation
+HELLO_SRCS=examples/hello.js
+HELLO_OPTS=-fno-string-normalize -fno-map -fno-promise -fno-typedarray \
+ -fno-typedarray -fno-regexp -fno-json -fno-eval -fno-proxy \
+ -fno-date -fno-module-loader -fno-bigint
+
+hello.c: $(QJSC) $(HELLO_SRCS)
+ $(QJSC) -e $(HELLO_OPTS) -o $@ $(HELLO_SRCS)
+
+ifdef CONFIG_M32
+examples/hello: $(OBJDIR)/hello.m32s.o $(patsubst %.o, %.m32s.o, $(QJS_LIB_OBJS))
+ $(CC) -m32 $(LDFLAGS) -o $@ $^ $(LIBS)
+else
+examples/hello: $(OBJDIR)/hello.o $(QJS_LIB_OBJS)
+ $(CC) $(LDFLAGS) -o $@ $^ $(LIBS)
+endif
+
+# example of static JS compilation with modules
+HELLO_MODULE_SRCS=examples/hello_module.js
+HELLO_MODULE_OPTS=-fno-string-normalize -fno-map -fno-promise -fno-typedarray \
+ -fno-typedarray -fno-regexp -fno-json -fno-eval -fno-proxy \
+ -fno-date -m
+examples/hello_module: $(QJSC) libquickjs$(LTOEXT).a $(HELLO_MODULE_SRCS)
+ $(QJSC) $(HELLO_MODULE_OPTS) -o $@ $(HELLO_MODULE_SRCS)
+
+# use of an external C module (static compilation)
+
+test_fib.c: $(QJSC) examples/test_fib.js
+ $(QJSC) -e -M examples/fib.so,fib -m -o $@ examples/test_fib.js
+
+examples/test_fib: $(OBJDIR)/test_fib.o $(OBJDIR)/examples/fib.o libquickjs$(LTOEXT).a
+ $(CC) $(LDFLAGS) -o $@ $^ $(LIBS)
+
+examples/fib.so: $(OBJDIR)/examples/fib.pic.o
+ $(CC) $(LDFLAGS) -shared -o $@ $^
+
+examples/point.so: $(OBJDIR)/examples/point.pic.o
+ $(CC) $(LDFLAGS) -shared -o $@ $^
+
+###############################################################################
+# documentation
+
+DOCS=doc/quickjs.pdf doc/quickjs.html doc/jsbignum.pdf doc/jsbignum.html
+
+build_doc: $(DOCS)
+
+clean_doc:
+ rm -f $(DOCS)
+
+doc/%.pdf: doc/%.texi
+ texi2pdf --clean -o $@ -q $<
+
+doc/%.html.pre: doc/%.texi
+ makeinfo --html --no-headers --no-split --number-sections -o $@ $<
+
+doc/%.html: doc/%.html.pre
+ sed -e 's|</style>|</style>\n<meta name="viewport" content="width=device-width, initial-scale=1.0">|' < $< > $@
+
+###############################################################################
+# tests
+
+ifdef CONFIG_SHARED_LIBS
+test: tests/bjson.so examples/point.so
+endif
+ifdef CONFIG_M32
+test: qjs32
+endif
+
+test: qjs
+ ./qjs tests/test_closure.js
+ ./qjs tests/test_language.js
+ ./qjs --std tests/test_builtin.js
+ ./qjs tests/test_loop.js
+ ./qjs tests/test_bignum.js
+ ./qjs tests/test_std.js
+ ./qjs tests/test_worker.js
+ifdef CONFIG_SHARED_LIBS
+ifdef CONFIG_BIGNUM
+ ./qjs --bignum tests/test_bjson.js
+else
+ ./qjs tests/test_bjson.js
+endif
+ ./qjs examples/test_point.js
+endif
+ifdef CONFIG_BIGNUM
+ ./qjs --bignum tests/test_op_overloading.js
+ ./qjs --bignum tests/test_bigfloat.js
+ ./qjs --qjscalc tests/test_qjscalc.js
+endif
+ifdef CONFIG_M32
+ ./qjs32 tests/test_closure.js
+ ./qjs32 tests/test_language.js
+ ./qjs32 --std tests/test_builtin.js
+ ./qjs32 tests/test_loop.js
+ ./qjs32 tests/test_bignum.js
+ ./qjs32 tests/test_std.js
+ ./qjs32 tests/test_worker.js
+ifdef CONFIG_BIGNUM
+ ./qjs32 --bignum tests/test_op_overloading.js
+ ./qjs32 --bignum tests/test_bigfloat.js
+ ./qjs32 --qjscalc tests/test_qjscalc.js
+endif
+endif
+
+stats: qjs qjs32
+ ./qjs -qd
+ ./qjs32 -qd
+
+microbench: qjs
+ ./qjs --std tests/microbench.js
+
+microbench-32: qjs32
+ ./qjs32 --std tests/microbench.js
+
+ifeq ($(wildcard test262o/tests.txt),)
+test2o test2o-32 test2o-update:
+ @echo test262o tests not installed
+else
+# ES5 tests (obsolete)
+test2o: run-test262
+ time ./run-test262 -t -m -c test262o.conf
+
+test2o-32: run-test262-32
+ time ./run-test262-32 -t -m -c test262o.conf
+
+test2o-update: run-test262
+ ./run-test262 -t -u -c test262o.conf
+endif
+
+ifeq ($(wildcard test262o/tests.txt),)
+test2 test2-32 test2-update test2-default test2-check:
+ @echo test262 tests not installed
+else
+# Test262 tests
+test2-default: run-test262
+ time ./run-test262 -t -m -c test262.conf
+
+test2: run-test262
+ time ./run-test262 -t -m -c test262.conf -a
+
+test2-32: run-test262-32
+ time ./run-test262-32 -t -m -c test262.conf -a
+
+test2-update: run-test262
+ ./run-test262 -t -u -c test262.conf -a
+
+test2-check: run-test262
+ time ./run-test262 -t -m -c test262.conf -E -a
+endif
+
+testall: all test microbench test2o test2
+
+testall-32: all test-32 microbench-32 test2o-32 test2-32
+
+testall-complete: testall testall-32
+
+node-test:
+ node tests/test_closure.js
+ node tests/test_language.js
+ node tests/test_builtin.js
+ node tests/test_loop.js
+ node tests/test_bignum.js
+
+node-microbench:
+ node tests/microbench.js -s microbench-node.txt
+ node --jitless tests/microbench.js -s microbench-node-jitless.txt
+
+bench-v8: qjs
+ make -C tests/bench-v8
+ ./qjs -d tests/bench-v8/combined.js
+
+node-bench-v8:
+ make -C tests/bench-v8
+ node --jitless tests/bench-v8/combined.js
+
+tests/bjson.so: $(OBJDIR)/tests/bjson.pic.o
+ $(CC) $(LDFLAGS) -shared -o $@ $^ $(LIBS)
+
+BENCHMARKDIR=../quickjs-benchmarks
+
+run_sunspider_like: $(BENCHMARKDIR)/run_sunspider_like.c
+ $(CC) $(CFLAGS) $(LDFLAGS) -DNO_INCLUDE_DIR -I. -o $@ $< libquickjs$(LTOEXT).a $(LIBS)
+
+run_octane: $(BENCHMARKDIR)/run_octane.c
+ $(CC) $(CFLAGS) $(LDFLAGS) -DNO_INCLUDE_DIR -I. -o $@ $< libquickjs$(LTOEXT).a $(LIBS)
+
+benchmarks: run_sunspider_like run_octane
+ ./run_sunspider_like $(BENCHMARKDIR)/kraken-1.0/
+ ./run_sunspider_like $(BENCHMARKDIR)/kraken-1.1/
+ ./run_sunspider_like $(BENCHMARKDIR)/sunspider-1.0/
+ ./run_octane $(BENCHMARKDIR)/
+
+-include $(wildcard $(OBJDIR)/*.d)
diff --git a/src/couch_quickjs/quickjs/VERSION b/src/couch_quickjs/quickjs/VERSION
new file mode 100644
index 0000000..e32e065
--- /dev/null
+++ b/src/couch_quickjs/quickjs/VERSION
@@ -0,0 +1 @@
+2024-02-14
diff --git a/src/couch_quickjs/quickjs/cutils.c b/src/couch_quickjs/quickjs/cutils.c
new file mode 100644
index 0000000..c0aacef
--- /dev/null
+++ b/src/couch_quickjs/quickjs/cutils.c
@@ -0,0 +1,631 @@
+/*
+ * C utilities
+ *
+ * Copyright (c) 2017 Fabrice Bellard
+ * Copyright (c) 2018 Charlie Gordon
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdarg.h>
+#include <string.h>
+
+#include "cutils.h"
+
+void pstrcpy(char *buf, int buf_size, const char *str)
+{
+ int c;
+ char *q = buf;
+
+ if (buf_size <= 0)
+ return;
+
+ for(;;) {
+ c = *str++;
+ if (c == 0 || q >= buf + buf_size - 1)
+ break;
+ *q++ = c;
+ }
+ *q = '\0';
+}
+
+/* strcat and truncate. */
+char *pstrcat(char *buf, int buf_size, const char *s)
+{
+ int len;
+ len = strlen(buf);
+ if (len < buf_size)
+ pstrcpy(buf + len, buf_size - len, s);
+ return buf;
+}
+
+int strstart(const char *str, const char *val, const char **ptr)
+{
+ const char *p, *q;
+ p = str;
+ q = val;
+ while (*q != '\0') {
+ if (*p != *q)
+ return 0;
+ p++;
+ q++;
+ }
+ if (ptr)
+ *ptr = p;
+ return 1;
+}
+
+int has_suffix(const char *str, const char *suffix)
+{
+ size_t len = strlen(str);
+ size_t slen = strlen(suffix);
+ return (len >= slen && !memcmp(str + len - slen, suffix, slen));
+}
+
+/* Dynamic buffer package */
+
+static void *dbuf_default_realloc(void *opaque, void *ptr, size_t size)
+{
+ return realloc(ptr, size);
+}
+
+void dbuf_init2(DynBuf *s, void *opaque, DynBufReallocFunc *realloc_func)
+{
+ memset(s, 0, sizeof(*s));
+ if (!realloc_func)
+ realloc_func = dbuf_default_realloc;
+ s->opaque = opaque;
+ s->realloc_func = realloc_func;
+}
+
+void dbuf_init(DynBuf *s)
+{
+ dbuf_init2(s, NULL, NULL);
+}
+
+/* return < 0 if error */
+int dbuf_realloc(DynBuf *s, size_t new_size)
+{
+ size_t size;
+ uint8_t *new_buf;
+ if (new_size > s->allocated_size) {
+ if (s->error)
+ return -1;
+ size = s->allocated_size * 3 / 2;
+ if (size > new_size)
+ new_size = size;
+ new_buf = s->realloc_func(s->opaque, s->buf, new_size);
+ if (!new_buf) {
+ s->error = TRUE;
+ return -1;
+ }
+ s->buf = new_buf;
+ s->allocated_size = new_size;
+ }
+ return 0;
+}
+
+int dbuf_write(DynBuf *s, size_t offset, const uint8_t *data, size_t len)
+{
+ size_t end;
+ end = offset + len;
+ if (dbuf_realloc(s, end))
+ return -1;
+ memcpy(s->buf + offset, data, len);
+ if (end > s->size)
+ s->size = end;
+ return 0;
+}
+
+int dbuf_put(DynBuf *s, const uint8_t *data, size_t len)
+{
+ if (unlikely((s->size + len) > s->allocated_size)) {
+ if (dbuf_realloc(s, s->size + len))
+ return -1;
+ }
+ memcpy_no_ub(s->buf + s->size, data, len);
+ s->size += len;
+ return 0;
+}
+
+int dbuf_put_self(DynBuf *s, size_t offset, size_t len)
+{
+ if (unlikely((s->size + len) > s->allocated_size)) {
+ if (dbuf_realloc(s, s->size + len))
+ return -1;
+ }
+ memcpy(s->buf + s->size, s->buf + offset, len);
+ s->size += len;
+ return 0;
+}
+
+int dbuf_putc(DynBuf *s, uint8_t c)
+{
+ return dbuf_put(s, &c, 1);
+}
+
+int dbuf_putstr(DynBuf *s, const char *str)
+{
+ return dbuf_put(s, (const uint8_t *)str, strlen(str));
+}
+
+int __attribute__((format(printf, 2, 3))) dbuf_printf(DynBuf *s,
+ const char *fmt, ...)
+{
+ va_list ap;
+ char buf[128];
+ int len;
+
+ va_start(ap, fmt);
+ len = vsnprintf(buf, sizeof(buf), fmt, ap);
+ va_end(ap);
+ if (len < sizeof(buf)) {
+ /* fast case */
+ return dbuf_put(s, (uint8_t *)buf, len);
+ } else {
+ if (dbuf_realloc(s, s->size + len + 1))
+ return -1;
+ va_start(ap, fmt);
+ vsnprintf((char *)(s->buf + s->size), s->allocated_size - s->size,
+ fmt, ap);
+ va_end(ap);
+ s->size += len;
+ }
+ return 0;
+}
+
+void dbuf_free(DynBuf *s)
+{
+ /* we test s->buf as a fail safe to avoid crashing if dbuf_free()
+ is called twice */
+ if (s->buf) {
+ s->realloc_func(s->opaque, s->buf, 0);
+ }
+ memset(s, 0, sizeof(*s));
+}
+
+/* Note: at most 31 bits are encoded. At most UTF8_CHAR_LEN_MAX bytes
+ are output. */
+int unicode_to_utf8(uint8_t *buf, unsigned int c)
+{
+ uint8_t *q = buf;
+
+ if (c < 0x80) {
+ *q++ = c;
+ } else {
+ if (c < 0x800) {
+ *q++ = (c >> 6) | 0xc0;
+ } else {
+ if (c < 0x10000) {
+ *q++ = (c >> 12) | 0xe0;
+ } else {
+ if (c < 0x00200000) {
+ *q++ = (c >> 18) | 0xf0;
+ } else {
+ if (c < 0x04000000) {
+ *q++ = (c >> 24) | 0xf8;
+ } else if (c < 0x80000000) {
+ *q++ = (c >> 30) | 0xfc;
+ *q++ = ((c >> 24) & 0x3f) | 0x80;
+ } else {
+ return 0;
+ }
+ *q++ = ((c >> 18) & 0x3f) | 0x80;
+ }
+ *q++ = ((c >> 12) & 0x3f) | 0x80;
+ }
+ *q++ = ((c >> 6) & 0x3f) | 0x80;
+ }
+ *q++ = (c & 0x3f) | 0x80;
+ }
+ return q - buf;
+}
+
+static const unsigned int utf8_min_code[5] = {
+ 0x80, 0x800, 0x10000, 0x00200000, 0x04000000,
+};
+
+static const unsigned char utf8_first_code_mask[5] = {
+ 0x1f, 0xf, 0x7, 0x3, 0x1,
+};
+
+/* return -1 if error. *pp is not updated in this case. max_len must
+ be >= 1. The maximum length for a UTF8 byte sequence is 6 bytes. */
+int unicode_from_utf8(const uint8_t *p, int max_len, const uint8_t **pp)
+{
+ int l, c, b, i;
+
+ c = *p++;
+ if (c < 0x80) {
+ *pp = p;
+ return c;
+ }
+ switch(c) {
+ case 0xc0: case 0xc1: case 0xc2: case 0xc3:
+ case 0xc4: case 0xc5: case 0xc6: case 0xc7:
+ case 0xc8: case 0xc9: case 0xca: case 0xcb:
+ case 0xcc: case 0xcd: case 0xce: case 0xcf:
+ case 0xd0: case 0xd1: case 0xd2: case 0xd3:
+ case 0xd4: case 0xd5: case 0xd6: case 0xd7:
+ case 0xd8: case 0xd9: case 0xda: case 0xdb:
+ case 0xdc: case 0xdd: case 0xde: case 0xdf:
+ l = 1;
+ break;
+ case 0xe0: case 0xe1: case 0xe2: case 0xe3:
+ case 0xe4: case 0xe5: case 0xe6: case 0xe7:
+ case 0xe8: case 0xe9: case 0xea: case 0xeb:
+ case 0xec: case 0xed: case 0xee: case 0xef:
+ l = 2;
+ break;
+ case 0xf0: case 0xf1: case 0xf2: case 0xf3:
+ case 0xf4: case 0xf5: case 0xf6: case 0xf7:
+ l = 3;
+ break;
+ case 0xf8: case 0xf9: case 0xfa: case 0xfb:
+ l = 4;
+ break;
+ case 0xfc: case 0xfd:
+ l = 5;
+ break;
+ default:
+ return -1;
+ }
+ /* check that we have enough characters */
+ if (l > (max_len - 1))
+ return -1;
+ c &= utf8_first_code_mask[l - 1];
+ for(i = 0; i < l; i++) {
+ b = *p++;
+ if (b < 0x80 || b >= 0xc0)
+ return -1;
+ c = (c << 6) | (b & 0x3f);
+ }
+ if (c < utf8_min_code[l - 1])
+ return -1;
+ *pp = p;
+ return c;
+}
+
+#if 0
+
+#if defined(EMSCRIPTEN) || defined(__ANDROID__)
+
+static void *rqsort_arg;
+static int (*rqsort_cmp)(const void *, const void *, void *);
+
+static int rqsort_cmp2(const void *p1, const void *p2)
+{
+ return rqsort_cmp(p1, p2, rqsort_arg);
+}
+
+/* not reentrant, but not needed with emscripten */
+void rqsort(void *base, size_t nmemb, size_t size,
+ int (*cmp)(const void *, const void *, void *),
+ void *arg)
+{
+ rqsort_arg = arg;
+ rqsort_cmp = cmp;
+ qsort(base, nmemb, size, rqsort_cmp2);
+}
+
+#endif
+
+#else
+
+typedef void (*exchange_f)(void *a, void *b, size_t size);
+typedef int (*cmp_f)(const void *, const void *, void *opaque);
+
+static void exchange_bytes(void *a, void *b, size_t size) {
+ uint8_t *ap = (uint8_t *)a;
+ uint8_t *bp = (uint8_t *)b;
+
+ while (size-- != 0) {
+ uint8_t t = *ap;
+ *ap++ = *bp;
+ *bp++ = t;
+ }
+}
+
+static void exchange_one_byte(void *a, void *b, size_t size) {
+ uint8_t *ap = (uint8_t *)a;
+ uint8_t *bp = (uint8_t *)b;
+ uint8_t t = *ap;
+ *ap = *bp;
+ *bp = t;
+}
+
+static void exchange_int16s(void *a, void *b, size_t size) {
+ uint16_t *ap = (uint16_t *)a;
+ uint16_t *bp = (uint16_t *)b;
+
+ for (size /= sizeof(uint16_t); size-- != 0;) {
+ uint16_t t = *ap;
+ *ap++ = *bp;
+ *bp++ = t;
+ }
+}
+
+static void exchange_one_int16(void *a, void *b, size_t size) {
+ uint16_t *ap = (uint16_t *)a;
+ uint16_t *bp = (uint16_t *)b;
+ uint16_t t = *ap;
+ *ap = *bp;
+ *bp = t;
+}
+
+static void exchange_int32s(void *a, void *b, size_t size) {
+ uint32_t *ap = (uint32_t *)a;
+ uint32_t *bp = (uint32_t *)b;
+
+ for (size /= sizeof(uint32_t); size-- != 0;) {
+ uint32_t t = *ap;
+ *ap++ = *bp;
+ *bp++ = t;
+ }
+}
+
+static void exchange_one_int32(void *a, void *b, size_t size) {
+ uint32_t *ap = (uint32_t *)a;
+ uint32_t *bp = (uint32_t *)b;
+ uint32_t t = *ap;
+ *ap = *bp;
+ *bp = t;
+}
+
+static void exchange_int64s(void *a, void *b, size_t size) {
+ uint64_t *ap = (uint64_t *)a;
+ uint64_t *bp = (uint64_t *)b;
+
+ for (size /= sizeof(uint64_t); size-- != 0;) {
+ uint64_t t = *ap;
+ *ap++ = *bp;
+ *bp++ = t;
+ }
+}
+
+static void exchange_one_int64(void *a, void *b, size_t size) {
+ uint64_t *ap = (uint64_t *)a;
+ uint64_t *bp = (uint64_t *)b;
+ uint64_t t = *ap;
+ *ap = *bp;
+ *bp = t;
+}
+
+static void exchange_int128s(void *a, void *b, size_t size) {
+ uint64_t *ap = (uint64_t *)a;
+ uint64_t *bp = (uint64_t *)b;
+
+ for (size /= sizeof(uint64_t) * 2; size-- != 0; ap += 2, bp += 2) {
+ uint64_t t = ap[0];
+ uint64_t u = ap[1];
+ ap[0] = bp[0];
+ ap[1] = bp[1];
+ bp[0] = t;
+ bp[1] = u;
+ }
+}
+
+static void exchange_one_int128(void *a, void *b, size_t size) {
+ uint64_t *ap = (uint64_t *)a;
+ uint64_t *bp = (uint64_t *)b;
+ uint64_t t = ap[0];
+ uint64_t u = ap[1];
+ ap[0] = bp[0];
+ ap[1] = bp[1];
+ bp[0] = t;
+ bp[1] = u;
+}
+
+static inline exchange_f exchange_func(const void *base, size_t size) {
+ switch (((uintptr_t)base | (uintptr_t)size) & 15) {
+ case 0:
+ if (size == sizeof(uint64_t) * 2)
+ return exchange_one_int128;
+ else
+ return exchange_int128s;
+ case 8:
+ if (size == sizeof(uint64_t))
+ return exchange_one_int64;
+ else
+ return exchange_int64s;
+ case 4:
+ case 12:
+ if (size == sizeof(uint32_t))
+ return exchange_one_int32;
+ else
+ return exchange_int32s;
+ case 2:
+ case 6:
+ case 10:
+ case 14:
+ if (size == sizeof(uint16_t))
+ return exchange_one_int16;
+ else
+ return exchange_int16s;
+ default:
+ if (size == 1)
+ return exchange_one_byte;
+ else
+ return exchange_bytes;
+ }
+}
+
+static void heapsortx(void *base, size_t nmemb, size_t size, cmp_f cmp, void *opaque)
+{
+ uint8_t *basep = (uint8_t *)base;
+ size_t i, n, c, r;
+ exchange_f swap = exchange_func(base, size);
+
+ if (nmemb > 1) {
+ i = (nmemb / 2) * size;
+ n = nmemb * size;
+
+ while (i > 0) {
+ i -= size;
+ for (r = i; (c = r * 2 + size) < n; r = c) {
+ if (c < n - size && cmp(basep + c, basep + c + size, opaque) <= 0)
+ c += size;
+ if (cmp(basep + r, basep + c, opaque) > 0)
+ break;
+ swap(basep + r, basep + c, size);
+ }
+ }
+ for (i = n - size; i > 0; i -= size) {
+ swap(basep, basep + i, size);
+
+ for (r = 0; (c = r * 2 + size) < i; r = c) {
+ if (c < i - size && cmp(basep + c, basep + c + size, opaque) <= 0)
+ c += size;
+ if (cmp(basep + r, basep + c, opaque) > 0)
+ break;
+ swap(basep + r, basep + c, size);
+ }
+ }
+ }
+}
+
+static inline void *med3(void *a, void *b, void *c, cmp_f cmp, void *opaque)
+{
+ return cmp(a, b, opaque) < 0 ?
+ (cmp(b, c, opaque) < 0 ? b : (cmp(a, c, opaque) < 0 ? c : a )) :
+ (cmp(b, c, opaque) > 0 ? b : (cmp(a, c, opaque) < 0 ? a : c ));
+}
+
+/* pointer based version with local stack and insertion sort threshhold */
+void rqsort(void *base, size_t nmemb, size_t size, cmp_f cmp, void *opaque)
+{
+ struct { uint8_t *base; size_t count; int depth; } stack[50], *sp = stack;
+ uint8_t *ptr, *pi, *pj, *plt, *pgt, *top, *m;
+ size_t m4, i, lt, gt, span, span2;
+ int c, depth;
+ exchange_f swap = exchange_func(base, size);
+ exchange_f swap_block = exchange_func(base, size | 128);
+
+ if (nmemb < 2 || size <= 0)
+ return;
+
+ sp->base = (uint8_t *)base;
+ sp->count = nmemb;
+ sp->depth = 0;
+ sp++;
+
+ while (sp > stack) {
+ sp--;
+ ptr = sp->base;
+ nmemb = sp->count;
+ depth = sp->depth;
+
+ while (nmemb > 6) {
+ if (++depth > 50) {
+ /* depth check to ensure worst case logarithmic time */
+ heapsortx(ptr, nmemb, size, cmp, opaque);
+ nmemb = 0;
+ break;
+ }
+ /* select median of 3 from 1/4, 1/2, 3/4 positions */
+ /* should use median of 5 or 9? */
+ m4 = (nmemb >> 2) * size;
+ m = med3(ptr + m4, ptr + 2 * m4, ptr + 3 * m4, cmp, opaque);
+ swap(ptr, m, size); /* move the pivot to the start or the array */
+ i = lt = 1;
+ pi = plt = ptr + size;
+ gt = nmemb;
+ pj = pgt = top = ptr + nmemb * size;
+ for (;;) {
+ while (pi < pj && (c = cmp(ptr, pi, opaque)) >= 0) {
+ if (c == 0) {
+ swap(plt, pi, size);
+ lt++;
+ plt += size;
+ }
+ i++;
+ pi += size;
+ }
+ while (pi < (pj -= size) && (c = cmp(ptr, pj, opaque)) <= 0) {
+ if (c == 0) {
+ gt--;
+ pgt -= size;
+ swap(pgt, pj, size);
+ }
+ }
+ if (pi >= pj)
+ break;
+ swap(pi, pj, size);
+ i++;
+ pi += size;
+ }
+ /* array has 4 parts:
+ * from 0 to lt excluded: elements identical to pivot
+ * from lt to pi excluded: elements smaller than pivot
+ * from pi to gt excluded: elements greater than pivot
+ * from gt to n excluded: elements identical to pivot
+ */
+ /* move elements identical to pivot in the middle of the array: */
+ /* swap values in ranges [0..lt[ and [i-lt..i[
+ swapping the smallest span between lt and i-lt is sufficient
+ */
+ span = plt - ptr;
+ span2 = pi - plt;
+ lt = i - lt;
+ if (span > span2)
+ span = span2;
+ swap_block(ptr, pi - span, span);
+ /* swap values in ranges [gt..top[ and [i..top-(top-gt)[
+ swapping the smallest span between top-gt and gt-i is sufficient
+ */
+ span = top - pgt;
+ span2 = pgt - pi;
+ pgt = top - span2;
+ gt = nmemb - (gt - i);
+ if (span > span2)
+ span = span2;
+ swap_block(pi, top - span, span);
+
+ /* now array has 3 parts:
+ * from 0 to lt excluded: elements smaller than pivot
+ * from lt to gt excluded: elements identical to pivot
+ * from gt to n excluded: elements greater than pivot
+ */
+ /* stack the larger segment and keep processing the smaller one
+ to minimize stack use for pathological distributions */
+ if (lt > nmemb - gt) {
+ sp->base = ptr;
+ sp->count = lt;
+ sp->depth = depth;
+ sp++;
+ ptr = pgt;
+ nmemb -= gt;
+ } else {
+ sp->base = pgt;
+ sp->count = nmemb - gt;
+ sp->depth = depth;
+ sp++;
+ nmemb = lt;
+ }
+ }
+ /* Use insertion sort for small fragments */
+ for (pi = ptr + size, top = ptr + nmemb * size; pi < top; pi += size) {
+ for (pj = pi; pj > ptr && cmp(pj - size, pj, opaque) > 0; pj -= size)
+ swap(pj, pj - size, size);
+ }
+ }
+}
+
+#endif
diff --git a/src/couch_quickjs/quickjs/cutils.h b/src/couch_quickjs/quickjs/cutils.h
new file mode 100644
index 0000000..f079e5c
--- /dev/null
+++ b/src/couch_quickjs/quickjs/cutils.h
@@ -0,0 +1,347 @@
+/*
+ * C utilities
+ *
+ * Copyright (c) 2017 Fabrice Bellard
+ * Copyright (c) 2018 Charlie Gordon
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+#ifndef CUTILS_H
+#define CUTILS_H
+
+#include <stdlib.h>
+#include <string.h>
+#include <inttypes.h>
+
+#define likely(x) __builtin_expect(!!(x), 1)
+#define unlikely(x) __builtin_expect(!!(x), 0)
+#define force_inline inline __attribute__((always_inline))
+#define no_inline __attribute__((noinline))
+#define __maybe_unused __attribute__((unused))
+
+#define xglue(x, y) x ## y
+#define glue(x, y) xglue(x, y)
+#define stringify(s) tostring(s)
+#define tostring(s) #s
+
+#ifndef offsetof
+#define offsetof(type, field) ((size_t) &((type *)0)->field)
+#endif
+#ifndef countof
+#define countof(x) (sizeof(x) / sizeof((x)[0]))
+#endif
+#ifndef container_of
+/* return the pointer of type 'type *' containing 'ptr' as field 'member' */
+#define container_of(ptr, type, member) ((type *)((uint8_t *)(ptr) - offsetof(type, member)))
+#endif
+
+#if !defined(_MSC_VER) && defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
+#define minimum_length(n) static n
+#else
+#define minimum_length(n) n
+#endif
+
+typedef int BOOL;
+
+#ifndef FALSE
+enum {
+ FALSE = 0,
+ TRUE = 1,
+};
+#endif
+
+void pstrcpy(char *buf, int buf_size, const char *str);
+char *pstrcat(char *buf, int buf_size, const char *s);
+int strstart(const char *str, const char *val, const char **ptr);
+int has_suffix(const char *str, const char *suffix);
+
+/* Prevent UB when n == 0 and (src == NULL or dest == NULL) */
+static inline void memcpy_no_ub(void *dest, const void *src, size_t n) {
+ if (n)
+ memcpy(dest, src, n);
+}
+
+static inline int max_int(int a, int b)
+{
+ if (a > b)
+ return a;
+ else
+ return b;
+}
+
+static inline int min_int(int a, int b)
+{
+ if (a < b)
+ return a;
+ else
+ return b;
+}
+
+static inline uint32_t max_uint32(uint32_t a, uint32_t b)
+{
+ if (a > b)
+ return a;
+ else
+ return b;
+}
+
+static inline uint32_t min_uint32(uint32_t a, uint32_t b)
+{
+ if (a < b)
+ return a;
+ else
+ return b;
+}
+
+static inline int64_t max_int64(int64_t a, int64_t b)
+{
+ if (a > b)
+ return a;
+ else
+ return b;
+}
+
+static inline int64_t min_int64(int64_t a, int64_t b)
+{
+ if (a < b)
+ return a;
+ else
+ return b;
+}
+
+/* WARNING: undefined if a = 0 */
+static inline int clz32(unsigned int a)
+{
+ return __builtin_clz(a);
+}
+
+/* WARNING: undefined if a = 0 */
+static inline int clz64(uint64_t a)
+{
+ return __builtin_clzll(a);
+}
+
+/* WARNING: undefined if a = 0 */
+static inline int ctz32(unsigned int a)
+{
+ return __builtin_ctz(a);
+}
+
+/* WARNING: undefined if a = 0 */
+static inline int ctz64(uint64_t a)
+{
+ return __builtin_ctzll(a);
+}
+
+struct __attribute__((packed)) packed_u64 {
+ uint64_t v;
+};
+
+struct __attribute__((packed)) packed_u32 {
+ uint32_t v;
+};
+
+struct __attribute__((packed)) packed_u16 {
+ uint16_t v;
+};
+
+static inline uint64_t get_u64(const uint8_t *tab)
+{
+ return ((const struct packed_u64 *)tab)->v;
+}
+
+static inline int64_t get_i64(const uint8_t *tab)
+{
+ return (int64_t)((const struct packed_u64 *)tab)->v;
+}
+
+static inline void put_u64(uint8_t *tab, uint64_t val)
+{
+ ((struct packed_u64 *)tab)->v = val;
+}
+
+static inline uint32_t get_u32(const uint8_t *tab)
+{
+ return ((const struct packed_u32 *)tab)->v;
+}
+
+static inline int32_t get_i32(const uint8_t *tab)
+{
+ return (int32_t)((const struct packed_u32 *)tab)->v;
+}
+
+static inline void put_u32(uint8_t *tab, uint32_t val)
+{
+ ((struct packed_u32 *)tab)->v = val;
+}
+
+static inline uint32_t get_u16(const uint8_t *tab)
+{
+ return ((const struct packed_u16 *)tab)->v;
+}
+
+static inline int32_t get_i16(const uint8_t *tab)
+{
+ return (int16_t)((const struct packed_u16 *)tab)->v;
+}
+
+static inline void put_u16(uint8_t *tab, uint16_t val)
+{
+ ((struct packed_u16 *)tab)->v = val;
+}
+
+static inline uint32_t get_u8(const uint8_t *tab)
+{
+ return *tab;
+}
+
+static inline int32_t get_i8(const uint8_t *tab)
+{
+ return (int8_t)*tab;
+}
+
+static inline void put_u8(uint8_t *tab, uint8_t val)
+{
+ *tab = val;
+}
+
+#ifndef bswap16
+static inline uint16_t bswap16(uint16_t x)
+{
+ return (x >> 8) | (x << 8);
+}
+#endif
+
+#ifndef bswap32
+static inline uint32_t bswap32(uint32_t v)
+{
+ return ((v & 0xff000000) >> 24) | ((v & 0x00ff0000) >> 8) |
+ ((v & 0x0000ff00) << 8) | ((v & 0x000000ff) << 24);
+}
+#endif
+
+#ifndef bswap64
+static inline uint64_t bswap64(uint64_t v)
+{
+ return ((v & ((uint64_t)0xff << (7 * 8))) >> (7 * 8)) |
+ ((v & ((uint64_t)0xff << (6 * 8))) >> (5 * 8)) |
+ ((v & ((uint64_t)0xff << (5 * 8))) >> (3 * 8)) |
+ ((v & ((uint64_t)0xff << (4 * 8))) >> (1 * 8)) |
+ ((v & ((uint64_t)0xff << (3 * 8))) << (1 * 8)) |
+ ((v & ((uint64_t)0xff << (2 * 8))) << (3 * 8)) |
+ ((v & ((uint64_t)0xff << (1 * 8))) << (5 * 8)) |
+ ((v & ((uint64_t)0xff << (0 * 8))) << (7 * 8));
+}
+#endif
+
+/* XXX: should take an extra argument to pass slack information to the caller */
+typedef void *DynBufReallocFunc(void *opaque, void *ptr, size_t size);
+
+typedef struct DynBuf {
+ uint8_t *buf;
+ size_t size;
+ size_t allocated_size;
+ BOOL error; /* true if a memory allocation error occurred */
+ DynBufReallocFunc *realloc_func;
+ void *opaque; /* for realloc_func */
+} DynBuf;
+
+void dbuf_init(DynBuf *s);
+void dbuf_init2(DynBuf *s, void *opaque, DynBufReallocFunc *realloc_func);
+int dbuf_realloc(DynBuf *s, size_t new_size);
+int dbuf_write(DynBuf *s, size_t offset, const uint8_t *data, size_t len);
+int dbuf_put(DynBuf *s, const uint8_t *data, size_t len);
+int dbuf_put_self(DynBuf *s, size_t offset, size_t len);
+int dbuf_putc(DynBuf *s, uint8_t c);
+int dbuf_putstr(DynBuf *s, const char *str);
+static inline int dbuf_put_u16(DynBuf *s, uint16_t val)
+{
+ return dbuf_put(s, (uint8_t *)&val, 2);
+}
+static inline int dbuf_put_u32(DynBuf *s, uint32_t val)
+{
+ return dbuf_put(s, (uint8_t *)&val, 4);
+}
+static inline int dbuf_put_u64(DynBuf *s, uint64_t val)
+{
+ return dbuf_put(s, (uint8_t *)&val, 8);
+}
+int __attribute__((format(printf, 2, 3))) dbuf_printf(DynBuf *s,
+ const char *fmt, ...);
+void dbuf_free(DynBuf *s);
+static inline BOOL dbuf_error(DynBuf *s) {
+ return s->error;
+}
+static inline void dbuf_set_error(DynBuf *s)
+{
+ s->error = TRUE;
+}
+
+#define UTF8_CHAR_LEN_MAX 6
+
+int unicode_to_utf8(uint8_t *buf, unsigned int c);
+int unicode_from_utf8(const uint8_t *p, int max_len, const uint8_t **pp);
+
+static inline BOOL is_surrogate(uint32_t c)
+{
+ return (c >> 11) == (0xD800 >> 11); // 0xD800-0xDFFF
+}
+
+static inline BOOL is_hi_surrogate(uint32_t c)
+{
+ return (c >> 10) == (0xD800 >> 10); // 0xD800-0xDBFF
+}
+
+static inline BOOL is_lo_surrogate(uint32_t c)
+{
+ return (c >> 10) == (0xDC00 >> 10); // 0xDC00-0xDFFF
+}
+
+static inline uint32_t get_hi_surrogate(uint32_t c)
+{
+ return (c >> 10) - (0x10000 >> 10) + 0xD800;
+}
+
+static inline uint32_t get_lo_surrogate(uint32_t c)
+{
+ return (c & 0x3FF) | 0xDC00;
+}
+
+static inline uint32_t from_surrogate(uint32_t hi, uint32_t lo)
+{
+ return 0x10000 + 0x400 * (hi - 0xD800) + (lo - 0xDC00);
+}
+
+static inline int from_hex(int c)
+{
+ if (c >= '0' && c <= '9')
+ return c - '0';
+ else if (c >= 'A' && c <= 'F')
+ return c - 'A' + 10;
+ else if (c >= 'a' && c <= 'f')
+ return c - 'a' + 10;
+ else
+ return -1;
+}
+
+void rqsort(void *base, size_t nmemb, size_t size,
+ int (*cmp)(const void *, const void *, void *),
+ void *arg);
+
+#endif /* CUTILS_H */
diff --git a/src/couch_quickjs/quickjs/libbf.c b/src/couch_quickjs/quickjs/libbf.c
new file mode 100644
index 0000000..05d62ed
--- /dev/null
+++ b/src/couch_quickjs/quickjs/libbf.c
@@ -0,0 +1,8475 @@
+/*
+ * Tiny arbitrary precision floating point library
+ *
+ * Copyright (c) 2017-2021 Fabrice Bellard
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+#include <stdlib.h>
+#include <stdio.h>
+#include <inttypes.h>
+#include <math.h>
+#include <string.h>
+#include <assert.h>
+
+#ifdef __AVX2__
+#include <immintrin.h>
+#endif
+
+#include "cutils.h"
+#include "libbf.h"
+
+/* enable it to check the multiplication result */
+//#define USE_MUL_CHECK
+#ifdef CONFIG_BIGNUM
+/* enable it to use FFT/NTT multiplication */
+#define USE_FFT_MUL
+/* enable decimal floating point support */
+#define USE_BF_DEC
+#endif
+
+//#define inline __attribute__((always_inline))
+
+#ifdef __AVX2__
+#define FFT_MUL_THRESHOLD 100 /* in limbs of the smallest factor */
+#else
+#define FFT_MUL_THRESHOLD 100 /* in limbs of the smallest factor */
+#endif
+
+/* XXX: adjust */
+#define DIVNORM_LARGE_THRESHOLD 50
+#define UDIV1NORM_THRESHOLD 3
+
+#if LIMB_BITS == 64
+#define FMT_LIMB1 "%" PRIx64
+#define FMT_LIMB "%016" PRIx64
+#define PRId_LIMB PRId64
+#define PRIu_LIMB PRIu64
+
+#else
+
+#define FMT_LIMB1 "%x"
+#define FMT_LIMB "%08x"
+#define PRId_LIMB "d"
+#define PRIu_LIMB "u"
+
+#endif
+
+typedef intptr_t mp_size_t;
+
+typedef int bf_op2_func_t(bf_t *r, const bf_t *a, const bf_t *b, limb_t prec,
+ bf_flags_t flags);
+
+#ifdef USE_FFT_MUL
+
+#define FFT_MUL_R_OVERLAP_A (1 << 0)
+#define FFT_MUL_R_OVERLAP_B (1 << 1)
+#define FFT_MUL_R_NORESIZE (1 << 2)
+
+static no_inline int fft_mul(bf_context_t *s,
+ bf_t *res, limb_t *a_tab, limb_t a_len,
+ limb_t *b_tab, limb_t b_len, int mul_flags);
+static void fft_clear_cache(bf_context_t *s);
+#endif
+#ifdef USE_BF_DEC
+static limb_t get_digit(const limb_t *tab, limb_t len, slimb_t pos);
+#endif
+
+
+/* could leading zeros */
+static inline int clz(limb_t a)
+{
+ if (a == 0) {
+ return LIMB_BITS;
+ } else {
+#if LIMB_BITS == 64
+ return clz64(a);
+#else
+ return clz32(a);
+#endif
+ }
+}
+
+static inline int ctz(limb_t a)
+{
+ if (a == 0) {
+ return LIMB_BITS;
+ } else {
+#if LIMB_BITS == 64
+ return ctz64(a);
+#else
+ return ctz32(a);
+#endif
+ }
+}
+
+static inline int ceil_log2(limb_t a)
+{
+ if (a <= 1)
+ return 0;
+ else
+ return LIMB_BITS - clz(a - 1);
+}
+
+/* b must be >= 1 */
+static inline slimb_t ceil_div(slimb_t a, slimb_t b)
+{
+ if (a >= 0)
+ return (a + b - 1) / b;
+ else
+ return a / b;
+}
+
+#ifdef USE_BF_DEC
+/* b must be >= 1 */
+static inline slimb_t floor_div(slimb_t a, slimb_t b)
+{
+ if (a >= 0) {
+ return a / b;
+ } else {
+ return (a - b + 1) / b;
+ }
+}
+#endif
+
+/* return r = a modulo b (0 <= r <= b - 1. b must be >= 1 */
+static inline limb_t smod(slimb_t a, slimb_t b)
+{
+ a = a % (slimb_t)b;
+ if (a < 0)
+ a += b;
+ return a;
+}
+
+/* signed addition with saturation */
+static inline slimb_t sat_add(slimb_t a, slimb_t b)
+{
+ slimb_t r;
+ r = a + b;
+ /* overflow ? */
+ if (((a ^ r) & (b ^ r)) < 0)
+ r = (a >> (LIMB_BITS - 1)) ^ (((limb_t)1 << (LIMB_BITS - 1)) - 1);
+ return r;
+}
+
+static inline __maybe_unused limb_t shrd(limb_t low, limb_t high, long shift)
+{
+ if (shift != 0)
+ low = (low >> shift) | (high << (LIMB_BITS - shift));
+ return low;
+}
+
+static inline __maybe_unused limb_t shld(limb_t a1, limb_t a0, long shift)
+{
+ if (shift != 0)
+ return (a1 << shift) | (a0 >> (LIMB_BITS - shift));
+ else
+ return a1;
+}
+
+#define malloc(s) malloc_is_forbidden(s)
+#define free(p) free_is_forbidden(p)
+#define realloc(p, s) realloc_is_forbidden(p, s)
+
+void bf_context_init(bf_context_t *s, bf_realloc_func_t *realloc_func,
+ void *realloc_opaque)
+{
+ memset(s, 0, sizeof(*s));
+ s->realloc_func = realloc_func;
+ s->realloc_opaque = realloc_opaque;
+}
+
+void bf_context_end(bf_context_t *s)
+{
+ bf_clear_cache(s);
+}
+
+void bf_init(bf_context_t *s, bf_t *r)
+{
+ r->ctx = s;
+ r->sign = 0;
+ r->expn = BF_EXP_ZERO;
+ r->len = 0;
+ r->tab = NULL;
+}
+
+/* return 0 if OK, -1 if alloc error */
+int bf_resize(bf_t *r, limb_t len)
+{
+ limb_t *tab;
+
+ if (len != r->len) {
+ tab = bf_realloc(r->ctx, r->tab, len * sizeof(limb_t));
+ if (!tab && len != 0)
+ return -1;
+ r->tab = tab;
+ r->len = len;
+ }
+ return 0;
+}
+
+/* return 0 or BF_ST_MEM_ERROR */
+int bf_set_ui(bf_t *r, uint64_t a)
+{
+ r->sign = 0;
+ if (a == 0) {
+ r->expn = BF_EXP_ZERO;
+ bf_resize(r, 0); /* cannot fail */
+ }
+#if LIMB_BITS == 32
+ else if (a <= 0xffffffff)
+#else
+ else
+#endif
+ {
+ int shift;
+ if (bf_resize(r, 1))
+ goto fail;
+ shift = clz(a);
+ r->tab[0] = a << shift;
+ r->expn = LIMB_BITS - shift;
+ }
+#if LIMB_BITS == 32
+ else {
+ uint32_t a1, a0;
+ int shift;
+ if (bf_resize(r, 2))
+ goto fail;
+ a0 = a;
+ a1 = a >> 32;
+ shift = clz(a1);
+ r->tab[0] = a0 << shift;
+ r->tab[1] = shld(a1, a0, shift);
+ r->expn = 2 * LIMB_BITS - shift;
+ }
+#endif
+ return 0;
+ fail:
+ bf_set_nan(r);
+ return BF_ST_MEM_ERROR;
+}
+
+/* return 0 or BF_ST_MEM_ERROR */
+int bf_set_si(bf_t *r, int64_t a)
+{
+ int ret;
+
+ if (a < 0) {
+ ret = bf_set_ui(r, -a);
+ r->sign = 1;
+ } else {
+ ret = bf_set_ui(r, a);
+ }
+ return ret;
+}
+
+void bf_set_nan(bf_t *r)
+{
+ bf_resize(r, 0); /* cannot fail */
+ r->expn = BF_EXP_NAN;
+ r->sign = 0;
+}
+
+void bf_set_zero(bf_t *r, int is_neg)
+{
+ bf_resize(r, 0); /* cannot fail */
+ r->expn = BF_EXP_ZERO;
+ r->sign = is_neg;
+}
+
+void bf_set_inf(bf_t *r, int is_neg)
+{
+ bf_resize(r, 0); /* cannot fail */
+ r->expn = BF_EXP_INF;
+ r->sign = is_neg;
+}
+
+/* return 0 or BF_ST_MEM_ERROR */
+int bf_set(bf_t *r, const bf_t *a)
+{
+ if (r == a)
+ return 0;
+ if (bf_resize(r, a->len)) {
+ bf_set_nan(r);
+ return BF_ST_MEM_ERROR;
+ }
+ r->sign = a->sign;
+ r->expn = a->expn;
+ memcpy_no_ub(r->tab, a->tab, a->len * sizeof(limb_t));
+ return 0;
+}
+
+/* equivalent to bf_set(r, a); bf_delete(a) */
+void bf_move(bf_t *r, bf_t *a)
+{
+ bf_context_t *s = r->ctx;
+ if (r == a)
+ return;
+ bf_free(s, r->tab);
+ *r = *a;
+}
+
+static limb_t get_limbz(const bf_t *a, limb_t idx)
+{
+ if (idx >= a->len)
+ return 0;
+ else
+ return a->tab[idx];
+}
+
+/* get LIMB_BITS at bit position 'pos' in tab */
+static inline limb_t get_bits(const limb_t *tab, limb_t len, slimb_t pos)
+{
+ limb_t i, a0, a1;
+ int p;
+
+ i = pos >> LIMB_LOG2_BITS;
+ p = pos & (LIMB_BITS - 1);
+ if (i < len)
+ a0 = tab[i];
+ else
+ a0 = 0;
+ if (p == 0) {
+ return a0;
+ } else {
+ i++;
+ if (i < len)
+ a1 = tab[i];
+ else
+ a1 = 0;
+ return (a0 >> p) | (a1 << (LIMB_BITS - p));
+ }
+}
+
+static inline limb_t get_bit(const limb_t *tab, limb_t len, slimb_t pos)
+{
+ slimb_t i;
+ i = pos >> LIMB_LOG2_BITS;
+ if (i < 0 || i >= len)
+ return 0;
+ return (tab[i] >> (pos & (LIMB_BITS - 1))) & 1;
+}
+
+static inline limb_t limb_mask(int start, int last)
+{
+ limb_t v;
+ int n;
+ n = last - start + 1;
+ if (n == LIMB_BITS)
+ v = -1;
+ else
+ v = (((limb_t)1 << n) - 1) << start;
+ return v;
+}
+
+static limb_t mp_scan_nz(const limb_t *tab, mp_size_t n)
+{
+ mp_size_t i;
+ for(i = 0; i < n; i++) {
+ if (tab[i] != 0)
+ return 1;
+ }
+ return 0;
+}
+
+/* return != 0 if one bit between 0 and bit_pos inclusive is not zero. */
+static inline limb_t scan_bit_nz(const bf_t *r, slimb_t bit_pos)
+{
+ slimb_t pos;
+ limb_t v;
+
+ pos = bit_pos >> LIMB_LOG2_BITS;
+ if (pos < 0)
+ return 0;
+ v = r->tab[pos] & limb_mask(0, bit_pos & (LIMB_BITS - 1));
+ if (v != 0)
+ return 1;
+ pos--;
+ while (pos >= 0) {
+ if (r->tab[pos] != 0)
+ return 1;
+ pos--;
+ }
+ return 0;
+}
+
+/* return the addend for rounding. Note that prec can be <= 0 (for
+ BF_FLAG_RADPNT_PREC) */
+static int bf_get_rnd_add(int *pret, const bf_t *r, limb_t l,
+ slimb_t prec, int rnd_mode)
+{
+ int add_one, inexact;
+ limb_t bit1, bit0;
+
+ if (rnd_mode == BF_RNDF) {
+ bit0 = 1; /* faithful rounding does not honor the INEXACT flag */
+ } else {
+ /* starting limb for bit 'prec + 1' */
+ bit0 = scan_bit_nz(r, l * LIMB_BITS - 1 - bf_max(0, prec + 1));
+ }
+
+ /* get the bit at 'prec' */
+ bit1 = get_bit(r->tab, l, l * LIMB_BITS - 1 - prec);
+ inexact = (bit1 | bit0) != 0;
+
+ add_one = 0;
+ switch(rnd_mode) {
+ case BF_RNDZ:
+ break;
+ case BF_RNDN:
+ if (bit1) {
+ if (bit0) {
+ add_one = 1;
+ } else {
+ /* round to even */
+ add_one =
+ get_bit(r->tab, l, l * LIMB_BITS - 1 - (prec - 1));
+ }
+ }
+ break;
+ case BF_RNDD:
+ case BF_RNDU:
+ if (r->sign == (rnd_mode == BF_RNDD))
+ add_one = inexact;
+ break;
+ case BF_RNDA:
+ add_one = inexact;
+ break;
+ case BF_RNDNA:
+ case BF_RNDF:
+ add_one = bit1;
+ break;
+ default:
+ abort();
+ }
+
+ if (inexact)
+ *pret |= BF_ST_INEXACT;
+ return add_one;
+}
+
+static int bf_set_overflow(bf_t *r, int sign, limb_t prec, bf_flags_t flags)
+{
+ slimb_t i, l, e_max;
+ int rnd_mode;
+
+ rnd_mode = flags & BF_RND_MASK;
+ if (prec == BF_PREC_INF ||
+ rnd_mode == BF_RNDN ||
+ rnd_mode == BF_RNDNA ||
+ rnd_mode == BF_RNDA ||
+ (rnd_mode == BF_RNDD && sign == 1) ||
+ (rnd_mode == BF_RNDU && sign == 0)) {
+ bf_set_inf(r, sign);
+ } else {
+ /* set to maximum finite number */
+ l = (prec + LIMB_BITS - 1) / LIMB_BITS;
+ if (bf_resize(r, l)) {
+ bf_set_nan(r);
+ return BF_ST_MEM_ERROR;
+ }
+ r->tab[0] = limb_mask((-prec) & (LIMB_BITS - 1),
+ LIMB_BITS - 1);
+ for(i = 1; i < l; i++)
+ r->tab[i] = (limb_t)-1;
+ e_max = (limb_t)1 << (bf_get_exp_bits(flags) - 1);
+ r->expn = e_max;
+ r->sign = sign;
+ }
+ return BF_ST_OVERFLOW | BF_ST_INEXACT;
+}
+
+/* round to prec1 bits assuming 'r' is non zero and finite. 'r' is
+ assumed to have length 'l' (1 <= l <= r->len). Note: 'prec1' can be
+ infinite (BF_PREC_INF). 'ret' is 0 or BF_ST_INEXACT if the result
+ is known to be inexact. Can fail with BF_ST_MEM_ERROR in case of
+ overflow not returning infinity. */
+static int __bf_round(bf_t *r, limb_t prec1, bf_flags_t flags, limb_t l,
+ int ret)
+{
+ limb_t v, a;
+ int shift, add_one, rnd_mode;
+ slimb_t i, bit_pos, pos, e_min, e_max, e_range, prec;
+
+ /* e_min and e_max are computed to match the IEEE 754 conventions */
+ e_range = (limb_t)1 << (bf_get_exp_bits(flags) - 1);
+ e_min = -e_range + 3;
+ e_max = e_range;
+
+ if (flags & BF_FLAG_RADPNT_PREC) {
+ /* 'prec' is the precision after the radix point */
+ if (prec1 != BF_PREC_INF)
+ prec = r->expn + prec1;
+ else
+ prec = prec1;
+ } else if (unlikely(r->expn < e_min) && (flags & BF_FLAG_SUBNORMAL)) {
+ /* restrict the precision in case of potentially subnormal
+ result */
+ assert(prec1 != BF_PREC_INF);
+ prec = prec1 - (e_min - r->expn);
+ } else {
+ prec = prec1;
+ }
+
+ /* round to prec bits */
+ rnd_mode = flags & BF_RND_MASK;
+ add_one = bf_get_rnd_add(&ret, r, l, prec, rnd_mode);
+
+ if (prec <= 0) {
+ if (add_one) {
+ bf_resize(r, 1); /* cannot fail */
+ r->tab[0] = (limb_t)1 << (LIMB_BITS - 1);
+ r->expn += 1 - prec;
+ ret |= BF_ST_UNDERFLOW | BF_ST_INEXACT;
+ return ret;
+ } else {
+ goto underflow;
+ }
+ } else if (add_one) {
+ limb_t carry;
+
+ /* add one starting at digit 'prec - 1' */
+ bit_pos = l * LIMB_BITS - 1 - (prec - 1);
+ pos = bit_pos >> LIMB_LOG2_BITS;
+ carry = (limb_t)1 << (bit_pos & (LIMB_BITS - 1));
+
+ for(i = pos; i < l; i++) {
+ v = r->tab[i] + carry;
+ carry = (v < carry);
+ r->tab[i] = v;
+ if (carry == 0)
+ break;
+ }
+ if (carry) {
+ /* shift right by one digit */
+ v = 1;
+ for(i = l - 1; i >= pos; i--) {
+ a = r->tab[i];
+ r->tab[i] = (a >> 1) | (v << (LIMB_BITS - 1));
+ v = a;
+ }
+ r->expn++;
+ }
+ }
+
+ /* check underflow */
+ if (unlikely(r->expn < e_min)) {
+ if (flags & BF_FLAG_SUBNORMAL) {
+ /* if inexact, also set the underflow flag */
+ if (ret & BF_ST_INEXACT)
+ ret |= BF_ST_UNDERFLOW;
+ } else {
+ underflow:
+ ret |= BF_ST_UNDERFLOW | BF_ST_INEXACT;
+ bf_set_zero(r, r->sign);
+ return ret;
+ }
+ }
+
+ /* check overflow */
+ if (unlikely(r->expn > e_max))
+ return bf_set_overflow(r, r->sign, prec1, flags);
+
+ /* keep the bits starting at 'prec - 1' */
+ bit_pos = l * LIMB_BITS - 1 - (prec - 1);
+ i = bit_pos >> LIMB_LOG2_BITS;
+ if (i >= 0) {
+ shift = bit_pos & (LIMB_BITS - 1);
+ if (shift != 0)
+ r->tab[i] &= limb_mask(shift, LIMB_BITS - 1);
+ } else {
+ i = 0;
+ }
+ /* remove trailing zeros */
+ while (r->tab[i] == 0)
+ i++;
+ if (i > 0) {
+ l -= i;
+ memmove(r->tab, r->tab + i, l * sizeof(limb_t));
+ }
+ bf_resize(r, l); /* cannot fail */
+ return ret;
+}
+
+/* 'r' must be a finite number. */
+int bf_normalize_and_round(bf_t *r, limb_t prec1, bf_flags_t flags)
+{
+ limb_t l, v, a;
+ int shift, ret;
+ slimb_t i;
+
+ // bf_print_str("bf_renorm", r);
+ l = r->len;
+ while (l > 0 && r->tab[l - 1] == 0)
+ l--;
+ if (l == 0) {
+ /* zero */
+ r->expn = BF_EXP_ZERO;
+ bf_resize(r, 0); /* cannot fail */
+ ret = 0;
+ } else {
+ r->expn -= (r->len - l) * LIMB_BITS;
+ /* shift to have the MSB set to '1' */
+ v = r->tab[l - 1];
+ shift = clz(v);
+ if (shift != 0) {
+ v = 0;
+ for(i = 0; i < l; i++) {
+ a = r->tab[i];
+ r->tab[i] = (a << shift) | (v >> (LIMB_BITS - shift));
+ v = a;
+ }
+ r->expn -= shift;
+ }
+ ret = __bf_round(r, prec1, flags, l, 0);
+ }
+ // bf_print_str("r_final", r);
+ return ret;
+}
+
+/* return true if rounding can be done at precision 'prec' assuming
+ the exact result r is such that |r-a| <= 2^(EXP(a)-k). */
+/* XXX: check the case where the exponent would be incremented by the
+ rounding */
+int bf_can_round(const bf_t *a, slimb_t prec, bf_rnd_t rnd_mode, slimb_t k)
+{
+ BOOL is_rndn;
+ slimb_t bit_pos, n;
+ limb_t bit;
+
+ if (a->expn == BF_EXP_INF || a->expn == BF_EXP_NAN)
+ return FALSE;
+ if (rnd_mode == BF_RNDF) {
+ return (k >= (prec + 1));
+ }
+ if (a->expn == BF_EXP_ZERO)
+ return FALSE;
+ is_rndn = (rnd_mode == BF_RNDN || rnd_mode == BF_RNDNA);
+ if (k < (prec + 2))
+ return FALSE;
+ bit_pos = a->len * LIMB_BITS - 1 - prec;
+ n = k - prec;
+ /* bit pattern for RNDN or RNDNA: 0111.. or 1000...
+ for other rounding modes: 000... or 111...
+ */
+ bit = get_bit(a->tab, a->len, bit_pos);
+ bit_pos--;
+ n--;
+ bit ^= is_rndn;
+ /* XXX: slow, but a few iterations on average */
+ while (n != 0) {
+ if (get_bit(a->tab, a->len, bit_pos) != bit)
+ return TRUE;
+ bit_pos--;
+ n--;
+ }
+ return FALSE;
+}
+
+/* Cannot fail with BF_ST_MEM_ERROR. */
+int bf_round(bf_t *r, limb_t prec, bf_flags_t flags)
+{
+ if (r->len == 0)
+ return 0;
+ return __bf_round(r, prec, flags, r->len, 0);
+}
+
+/* for debugging */
+static __maybe_unused void dump_limbs(const char *str, const limb_t *tab, limb_t n)
+{
+ limb_t i;
+ printf("%s: len=%" PRId_LIMB "\n", str, n);
+ for(i = 0; i < n; i++) {
+ printf("%" PRId_LIMB ": " FMT_LIMB "\n",
+ i, tab[i]);
+ }
+}
+
+void mp_print_str(const char *str, const limb_t *tab, limb_t n)
+{
+ slimb_t i;
+ printf("%s= 0x", str);
+ for(i = n - 1; i >= 0; i--) {
+ if (i != (n - 1))
+ printf("_");
+ printf(FMT_LIMB, tab[i]);
+ }
+ printf("\n");
+}
+
+static __maybe_unused void mp_print_str_h(const char *str,
+ const limb_t *tab, limb_t n,
+ limb_t high)
+{
+ slimb_t i;
+ printf("%s= 0x", str);
+ printf(FMT_LIMB, high);
+ for(i = n - 1; i >= 0; i--) {
+ printf("_");
+ printf(FMT_LIMB, tab[i]);
+ }
+ printf("\n");
+}
+
+/* for debugging */
+void bf_print_str(const char *str, const bf_t *a)
+{
+ slimb_t i;
+ printf("%s=", str);
+
+ if (a->expn == BF_EXP_NAN) {
+ printf("NaN");
+ } else {
+ if (a->sign)
+ putchar('-');
+ if (a->expn == BF_EXP_ZERO) {
+ putchar('0');
+ } else if (a->expn == BF_EXP_INF) {
+ printf("Inf");
+ } else {
+ printf("0x0.");
+ for(i = a->len - 1; i >= 0; i--)
+ printf(FMT_LIMB, a->tab[i]);
+ printf("p%" PRId_LIMB, a->expn);
+ }
+ }
+ printf("\n");
+}
+
+/* compare the absolute value of 'a' and 'b'. Return < 0 if a < b, 0
+ if a = b and > 0 otherwise. */
+int bf_cmpu(const bf_t *a, const bf_t *b)
+{
+ slimb_t i;
+ limb_t len, v1, v2;
+
+ if (a->expn != b->expn) {
+ if (a->expn < b->expn)
+ return -1;
+ else
+ return 1;
+ }
+ len = bf_max(a->len, b->len);
+ for(i = len - 1; i >= 0; i--) {
+ v1 = get_limbz(a, a->len - len + i);
+ v2 = get_limbz(b, b->len - len + i);
+ if (v1 != v2) {
+ if (v1 < v2)
+ return -1;
+ else
+ return 1;
+ }
+ }
+ return 0;
+}
+
+/* Full order: -0 < 0, NaN == NaN and NaN is larger than all other numbers */
+int bf_cmp_full(const bf_t *a, const bf_t *b)
+{
+ int res;
+
+ if (a->expn == BF_EXP_NAN || b->expn == BF_EXP_NAN) {
+ if (a->expn == b->expn)
+ res = 0;
+ else if (a->expn == BF_EXP_NAN)
+ res = 1;
+ else
+ res = -1;
+ } else if (a->sign != b->sign) {
+ res = 1 - 2 * a->sign;
+ } else {
+ res = bf_cmpu(a, b);
+ if (a->sign)
+ res = -res;
+ }
+ return res;
+}
+
+/* Standard floating point comparison: return 2 if one of the operands
+ is NaN (unordered) or -1, 0, 1 depending on the ordering assuming
+ -0 == +0 */
+int bf_cmp(const bf_t *a, const bf_t *b)
+{
+ int res;
+
+ if (a->expn == BF_EXP_NAN || b->expn == BF_EXP_NAN) {
+ res = 2;
+ } else if (a->sign != b->sign) {
+ if (a->expn == BF_EXP_ZERO && b->expn == BF_EXP_ZERO)
+ res = 0;
+ else
+ res = 1 - 2 * a->sign;
+ } else {
+ res = bf_cmpu(a, b);
+ if (a->sign)
+ res = -res;
+ }
+ return res;
+}
+
+/* Compute the number of bits 'n' matching the pattern:
+ a= X1000..0
+ b= X0111..1
+
+ When computing a-b, the result will have at least n leading zero
+ bits.
+
+ Precondition: a > b and a.expn - b.expn = 0 or 1
+*/
+static limb_t count_cancelled_bits(const bf_t *a, const bf_t *b)
+{
+ slimb_t bit_offset, b_offset, n;
+ int p, p1;
+ limb_t v1, v2, mask;
+
+ bit_offset = a->len * LIMB_BITS - 1;
+ b_offset = (b->len - a->len) * LIMB_BITS - (LIMB_BITS - 1) +
+ a->expn - b->expn;
+ n = 0;
+
+ /* first search the equals bits */
+ for(;;) {
+ v1 = get_limbz(a, bit_offset >> LIMB_LOG2_BITS);
+ v2 = get_bits(b->tab, b->len, bit_offset + b_offset);
+ // printf("v1=" FMT_LIMB " v2=" FMT_LIMB "\n", v1, v2);
+ if (v1 != v2)
+ break;
+ n += LIMB_BITS;
+ bit_offset -= LIMB_BITS;
+ }
+ /* find the position of the first different bit */
+ p = clz(v1 ^ v2) + 1;
+ n += p;
+ /* then search for '0' in a and '1' in b */
+ p = LIMB_BITS - p;
+ if (p > 0) {
+ /* search in the trailing p bits of v1 and v2 */
+ mask = limb_mask(0, p - 1);
+ p1 = bf_min(clz(v1 & mask), clz((~v2) & mask)) - (LIMB_BITS - p);
+ n += p1;
+ if (p1 != p)
+ goto done;
+ }
+ bit_offset -= LIMB_BITS;
+ for(;;) {
+ v1 = get_limbz(a, bit_offset >> LIMB_LOG2_BITS);
+ v2 = get_bits(b->tab, b->len, bit_offset + b_offset);
+ // printf("v1=" FMT_LIMB " v2=" FMT_LIMB "\n", v1, v2);
+ if (v1 != 0 || v2 != -1) {
+ /* different: count the matching bits */
+ p1 = bf_min(clz(v1), clz(~v2));
+ n += p1;
+ break;
+ }
+ n += LIMB_BITS;
+ bit_offset -= LIMB_BITS;
+ }
+ done:
+ return n;
+}
+
+static int bf_add_internal(bf_t *r, const bf_t *a, const bf_t *b, limb_t prec,
+ bf_flags_t flags, int b_neg)
+{
+ const bf_t *tmp;
+ int is_sub, ret, cmp_res, a_sign, b_sign;
+
+ a_sign = a->sign;
+ b_sign = b->sign ^ b_neg;
+ is_sub = a_sign ^ b_sign;
+ cmp_res = bf_cmpu(a, b);
+ if (cmp_res < 0) {
+ tmp = a;
+ a = b;
+ b = tmp;
+ a_sign = b_sign; /* b_sign is never used later */
+ }
+ /* abs(a) >= abs(b) */
+ if (cmp_res == 0 && is_sub && a->expn < BF_EXP_INF) {
+ /* zero result */
+ bf_set_zero(r, (flags & BF_RND_MASK) == BF_RNDD);
+ ret = 0;
+ } else if (a->len == 0 || b->len == 0) {
+ ret = 0;
+ if (a->expn >= BF_EXP_INF) {
+ if (a->expn == BF_EXP_NAN) {
+ /* at least one operand is NaN */
+ bf_set_nan(r);
+ } else if (b->expn == BF_EXP_INF && is_sub) {
+ /* infinities with different signs */
+ bf_set_nan(r);
+ ret = BF_ST_INVALID_OP;
+ } else {
+ bf_set_inf(r, a_sign);
+ }
+ } else {
+ /* at least one zero and not subtract */
+ bf_set(r, a);
+ r->sign = a_sign;
+ goto renorm;
+ }
+ } else {
+ slimb_t d, a_offset, b_bit_offset, i, cancelled_bits;
+ limb_t carry, v1, v2, u, r_len, carry1, precl, tot_len, z, sub_mask;
+
+ r->sign = a_sign;
+ r->expn = a->expn;
+ d = a->expn - b->expn;
+ /* must add more precision for the leading cancelled bits in
+ subtraction */
+ if (is_sub) {
+ if (d <= 1)
+ cancelled_bits = count_cancelled_bits(a, b);
+ else
+ cancelled_bits = 1;
+ } else {
+ cancelled_bits = 0;
+ }
+
+ /* add two extra bits for rounding */
+ precl = (cancelled_bits + prec + 2 + LIMB_BITS - 1) / LIMB_BITS;
+ tot_len = bf_max(a->len, b->len + (d + LIMB_BITS - 1) / LIMB_BITS);
+ r_len = bf_min(precl, tot_len);
+ if (bf_resize(r, r_len))
+ goto fail;
+ a_offset = a->len - r_len;
+ b_bit_offset = (b->len - r_len) * LIMB_BITS + d;
+
+ /* compute the bits before for the rounding */
+ carry = is_sub;
+ z = 0;
+ sub_mask = -is_sub;
+ i = r_len - tot_len;
+ while (i < 0) {
+ slimb_t ap, bp;
+ BOOL inflag;
+
+ ap = a_offset + i;
+ bp = b_bit_offset + i * LIMB_BITS;
+ inflag = FALSE;
+ if (ap >= 0 && ap < a->len) {
+ v1 = a->tab[ap];
+ inflag = TRUE;
+ } else {
+ v1 = 0;
+ }
+ if (bp + LIMB_BITS > 0 && bp < (slimb_t)(b->len * LIMB_BITS)) {
+ v2 = get_bits(b->tab, b->len, bp);
+ inflag = TRUE;
+ } else {
+ v2 = 0;
+ }
+ if (!inflag) {
+ /* outside 'a' and 'b': go directly to the next value
+ inside a or b so that the running time does not
+ depend on the exponent difference */
+ i = 0;
+ if (ap < 0)
+ i = bf_min(i, -a_offset);
+ /* b_bit_offset + i * LIMB_BITS + LIMB_BITS >= 1
+ equivalent to
+ i >= ceil(-b_bit_offset + 1 - LIMB_BITS) / LIMB_BITS)
+ */
+ if (bp + LIMB_BITS <= 0)
+ i = bf_min(i, (-b_bit_offset) >> LIMB_LOG2_BITS);
+ } else {
+ i++;
+ }
+ v2 ^= sub_mask;
+ u = v1 + v2;
+ carry1 = u < v1;
+ u += carry;
+ carry = (u < carry) | carry1;
+ z |= u;
+ }
+ /* and the result */
+ for(i = 0; i < r_len; i++) {
+ v1 = get_limbz(a, a_offset + i);
+ v2 = get_bits(b->tab, b->len, b_bit_offset + i * LIMB_BITS);
+ v2 ^= sub_mask;
+ u = v1 + v2;
+ carry1 = u < v1;
+ u += carry;
+ carry = (u < carry) | carry1;
+ r->tab[i] = u;
+ }
+ /* set the extra bits for the rounding */
+ r->tab[0] |= (z != 0);
+
+ /* carry is only possible in add case */
+ if (!is_sub && carry) {
+ if (bf_resize(r, r_len + 1))
+ goto fail;
+ r->tab[r_len] = 1;
+ r->expn += LIMB_BITS;
+ }
+ renorm:
+ ret = bf_normalize_and_round(r, prec, flags);
+ }
+ return ret;
+ fail:
+ bf_set_nan(r);
+ return BF_ST_MEM_ERROR;
+}
+
+static int __bf_add(bf_t *r, const bf_t *a, const bf_t *b, limb_t prec,
+ bf_flags_t flags)
+{
+ return bf_add_internal(r, a, b, prec, flags, 0);
+}
+
+static int __bf_sub(bf_t *r, const bf_t *a, const bf_t *b, limb_t prec,
+ bf_flags_t flags)
+{
+ return bf_add_internal(r, a, b, prec, flags, 1);
+}
+
+limb_t mp_add(limb_t *res, const limb_t *op1, const limb_t *op2,
+ limb_t n, limb_t carry)
+{
+ slimb_t i;
+ limb_t k, a, v, k1;
+
+ k = carry;
+ for(i=0;i<n;i++) {
+ v = op1[i];
+ a = v + op2[i];
+ k1 = a < v;
+ a = a + k;
+ k = (a < k) | k1;
+ res[i] = a;
+ }
+ return k;
+}
+
+limb_t mp_add_ui(limb_t *tab, limb_t b, size_t n)
+{
+ size_t i;
+ limb_t k, a;
+
+ k=b;
+ for(i=0;i<n;i++) {
+ if (k == 0)
+ break;
+ a = tab[i] + k;
+ k = (a < k);
+ tab[i] = a;
+ }
+ return k;
+}
+
+limb_t mp_sub(limb_t *res, const limb_t *op1, const limb_t *op2,
+ mp_size_t n, limb_t carry)
+{
+ int i;
+ limb_t k, a, v, k1;
+
+ k = carry;
+ for(i=0;i<n;i++) {
+ v = op1[i];
+ a = v - op2[i];
+ k1 = a > v;
+ v = a - k;
+ k = (v > a) | k1;
+ res[i] = v;
+ }
+ return k;
+}
+
+/* compute 0 - op2 */
+static limb_t mp_neg(limb_t *res, const limb_t *op2, mp_size_t n, limb_t carry)
+{
+ int i;
+ limb_t k, a, v, k1;
+
+ k = carry;
+ for(i=0;i<n;i++) {
+ v = 0;
+ a = v - op2[i];
+ k1 = a > v;
+ v = a - k;
+ k = (v > a) | k1;
+ res[i] = v;
+ }
+ return k;
+}
+
+limb_t mp_sub_ui(limb_t *tab, limb_t b, mp_size_t n)
+{
+ mp_size_t i;
+ limb_t k, a, v;
+
+ k=b;
+ for(i=0;i<n;i++) {
+ v = tab[i];
+ a = v - k;
+ k = a > v;
+ tab[i] = a;
+ if (k == 0)
+ break;
+ }
+ return k;
+}
+
+/* r = (a + high*B^n) >> shift. Return the remainder r (0 <= r < 2^shift).
+ 1 <= shift <= LIMB_BITS - 1 */
+static limb_t mp_shr(limb_t *tab_r, const limb_t *tab, mp_size_t n,
+ int shift, limb_t high)
+{
+ mp_size_t i;
+ limb_t l, a;
+
+ assert(shift >= 1 && shift < LIMB_BITS);
+ l = high;
+ for(i = n - 1; i >= 0; i--) {
+ a = tab[i];
+ tab_r[i] = (a >> shift) | (l << (LIMB_BITS - shift));
+ l = a;
+ }
+ return l & (((limb_t)1 << shift) - 1);
+}
+
+/* tabr[] = taba[] * b + l. Return the high carry */
+static limb_t mp_mul1(limb_t *tabr, const limb_t *taba, limb_t n,
+ limb_t b, limb_t l)
+{
+ limb_t i;
+ dlimb_t t;
+
+ for(i = 0; i < n; i++) {
+ t = (dlimb_t)taba[i] * (dlimb_t)b + l;
+ tabr[i] = t;
+ l = t >> LIMB_BITS;
+ }
+ return l;
+}
+
+/* tabr[] += taba[] * b, return the high word. */
+static limb_t mp_add_mul1(limb_t *tabr, const limb_t *taba, limb_t n,
+ limb_t b)
+{
+ limb_t i, l;
+ dlimb_t t;
+
+ l = 0;
+ for(i = 0; i < n; i++) {
+ t = (dlimb_t)taba[i] * (dlimb_t)b + l + tabr[i];
+ tabr[i] = t;
+ l = t >> LIMB_BITS;
+ }
+ return l;
+}
+
+/* size of the result : op1_size + op2_size. */
+static void mp_mul_basecase(limb_t *result,
+ const limb_t *op1, limb_t op1_size,
+ const limb_t *op2, limb_t op2_size)
+{
+ limb_t i, r;
+
+ result[op1_size] = mp_mul1(result, op1, op1_size, op2[0], 0);
+ for(i=1;i<op2_size;i++) {
+ r = mp_add_mul1(result + i, op1, op1_size, op2[i]);
+ result[i + op1_size] = r;
+ }
+}
+
+/* return 0 if OK, -1 if memory error */
+/* XXX: change API so that result can be allocated */
+int mp_mul(bf_context_t *s, limb_t *result,
+ const limb_t *op1, limb_t op1_size,
+ const limb_t *op2, limb_t op2_size)
+{
+#ifdef USE_FFT_MUL
+ if (unlikely(bf_min(op1_size, op2_size) >= FFT_MUL_THRESHOLD)) {
+ bf_t r_s, *r = &r_s;
+ r->tab = result;
+ /* XXX: optimize memory usage in API */
+ if (fft_mul(s, r, (limb_t *)op1, op1_size,
+ (limb_t *)op2, op2_size, FFT_MUL_R_NORESIZE))
+ return -1;
+ } else
+#endif
+ {
+ mp_mul_basecase(result, op1, op1_size, op2, op2_size);
+ }
+ return 0;
+}
+
+/* tabr[] -= taba[] * b. Return the value to substract to the high
+ word. */
+static limb_t mp_sub_mul1(limb_t *tabr, const limb_t *taba, limb_t n,
+ limb_t b)
+{
+ limb_t i, l;
+ dlimb_t t;
+
+ l = 0;
+ for(i = 0; i < n; i++) {
+ t = tabr[i] - (dlimb_t)taba[i] * (dlimb_t)b - l;
+ tabr[i] = t;
+ l = -(t >> LIMB_BITS);
+ }
+ return l;
+}
+
+/* WARNING: d must be >= 2^(LIMB_BITS-1) */
+static inline limb_t udiv1norm_init(limb_t d)
+{
+ limb_t a0, a1;
+ a1 = -d - 1;
+ a0 = -1;
+ return (((dlimb_t)a1 << LIMB_BITS) | a0) / d;
+}
+
+/* return the quotient and the remainder in '*pr'of 'a1*2^LIMB_BITS+a0
+ / d' with 0 <= a1 < d. */
+static inline limb_t udiv1norm(limb_t *pr, limb_t a1, limb_t a0,
+ limb_t d, limb_t d_inv)
+{
+ limb_t n1m, n_adj, q, r, ah;
+ dlimb_t a;
+ n1m = ((slimb_t)a0 >> (LIMB_BITS - 1));
+ n_adj = a0 + (n1m & d);
+ a = (dlimb_t)d_inv * (a1 - n1m) + n_adj;
+ q = (a >> LIMB_BITS) + a1;
+ /* compute a - q * r and update q so that the remainder is\
+ between 0 and d - 1 */
+ a = ((dlimb_t)a1 << LIMB_BITS) | a0;
+ a = a - (dlimb_t)q * d - d;
+ ah = a >> LIMB_BITS;
+ q += 1 + ah;
+ r = (limb_t)a + (ah & d);
+ *pr = r;
+ return q;
+}
+
+/* b must be >= 1 << (LIMB_BITS - 1) */
+static limb_t mp_div1norm(limb_t *tabr, const limb_t *taba, limb_t n,
+ limb_t b, limb_t r)
+{
+ slimb_t i;
+
+ if (n >= UDIV1NORM_THRESHOLD) {
+ limb_t b_inv;
+ b_inv = udiv1norm_init(b);
+ for(i = n - 1; i >= 0; i--) {
+ tabr[i] = udiv1norm(&r, r, taba[i], b, b_inv);
+ }
+ } else {
+ dlimb_t a1;
+ for(i = n - 1; i >= 0; i--) {
+ a1 = ((dlimb_t)r << LIMB_BITS) | taba[i];
+ tabr[i] = a1 / b;
+ r = a1 % b;
+ }
+ }
+ return r;
+}
+
+static int mp_divnorm_large(bf_context_t *s,
+ limb_t *tabq, limb_t *taba, limb_t na,
+ const limb_t *tabb, limb_t nb);
+
+/* base case division: divides taba[0..na-1] by tabb[0..nb-1]. tabb[nb
+ - 1] must be >= 1 << (LIMB_BITS - 1). na - nb must be >= 0. 'taba'
+ is modified and contains the remainder (nb limbs). tabq[0..na-nb]
+ contains the quotient with tabq[na - nb] <= 1. */
+static int mp_divnorm(bf_context_t *s, limb_t *tabq, limb_t *taba, limb_t na,
+ const limb_t *tabb, limb_t nb)
+{
+ limb_t r, a, c, q, v, b1, b1_inv, n, dummy_r;
+ slimb_t i, j;
+
+ b1 = tabb[nb - 1];
+ if (nb == 1) {
+ taba[0] = mp_div1norm(tabq, taba, na, b1, 0);
+ return 0;
+ }
+ n = na - nb;
+ if (bf_min(n, nb) >= DIVNORM_LARGE_THRESHOLD) {
+ return mp_divnorm_large(s, tabq, taba, na, tabb, nb);
+ }
+
+ if (n >= UDIV1NORM_THRESHOLD)
+ b1_inv = udiv1norm_init(b1);
+ else
+ b1_inv = 0;
+
+ /* first iteration: the quotient is only 0 or 1 */
+ q = 1;
+ for(j = nb - 1; j >= 0; j--) {
+ if (taba[n + j] != tabb[j]) {
+ if (taba[n + j] < tabb[j])
+ q = 0;
+ break;
+ }
+ }
+ tabq[n] = q;
+ if (q) {
+ mp_sub(taba + n, taba + n, tabb, nb, 0);
+ }
+
+ for(i = n - 1; i >= 0; i--) {
+ if (unlikely(taba[i + nb] >= b1)) {
+ q = -1;
+ } else if (b1_inv) {
+ q = udiv1norm(&dummy_r, taba[i + nb], taba[i + nb - 1], b1, b1_inv);
+ } else {
+ dlimb_t al;
+ al = ((dlimb_t)taba[i + nb] << LIMB_BITS) | taba[i + nb - 1];
+ q = al / b1;
+ r = al % b1;
+ }
+ r = mp_sub_mul1(taba + i, tabb, nb, q);
+
+ v = taba[i + nb];
+ a = v - r;
+ c = (a > v);
+ taba[i + nb] = a;
+
+ if (c != 0) {
+ /* negative result */
+ for(;;) {
+ q--;
+ c = mp_add(taba + i, taba + i, tabb, nb, 0);
+ /* propagate carry and test if positive result */
+ if (c != 0) {
+ if (++taba[i + nb] == 0) {
+ break;
+ }
+ }
+ }
+ }
+ tabq[i] = q;
+ }
+ return 0;
+}
+
+/* compute r=B^(2*n)/a such as a*r < B^(2*n) < a*r + 2 with n >= 1. 'a'
+ has n limbs with a[n-1] >= B/2 and 'r' has n+1 limbs with r[n] = 1.
+
+ See Modern Computer Arithmetic by Richard P. Brent and Paul
+ Zimmermann, algorithm 3.5 */
+int mp_recip(bf_context_t *s, limb_t *tabr, const limb_t *taba, limb_t n)
+{
+ mp_size_t l, h, k, i;
+ limb_t *tabxh, *tabt, c, *tabu;
+
+ if (n <= 2) {
+ /* return ceil(B^(2*n)/a) - 1 */
+ /* XXX: could avoid allocation */
+ tabu = bf_malloc(s, sizeof(limb_t) * (2 * n + 1));
+ tabt = bf_malloc(s, sizeof(limb_t) * (n + 2));
+ if (!tabt || !tabu)
+ goto fail;
+ for(i = 0; i < 2 * n; i++)
+ tabu[i] = 0;
+ tabu[2 * n] = 1;
+ if (mp_divnorm(s, tabt, tabu, 2 * n + 1, taba, n))
+ goto fail;
+ for(i = 0; i < n + 1; i++)
+ tabr[i] = tabt[i];
+ if (mp_scan_nz(tabu, n) == 0) {
+ /* only happens for a=B^n/2 */
+ mp_sub_ui(tabr, 1, n + 1);
+ }
+ } else {
+ l = (n - 1) / 2;
+ h = n - l;
+ /* n=2p -> l=p-1, h = p + 1, k = p + 3
+ n=2p+1-> l=p, h = p + 1; k = p + 2
+ */
+ tabt = bf_malloc(s, sizeof(limb_t) * (n + h + 1));
+ tabu = bf_malloc(s, sizeof(limb_t) * (n + 2 * h - l + 2));
+ if (!tabt || !tabu)
+ goto fail;
+ tabxh = tabr + l;
+ if (mp_recip(s, tabxh, taba + l, h))
+ goto fail;
+ if (mp_mul(s, tabt, taba, n, tabxh, h + 1)) /* n + h + 1 limbs */
+ goto fail;
+ while (tabt[n + h] != 0) {
+ mp_sub_ui(tabxh, 1, h + 1);
+ c = mp_sub(tabt, tabt, taba, n, 0);
+ mp_sub_ui(tabt + n, c, h + 1);
+ }
+ /* T = B^(n+h) - T */
+ mp_neg(tabt, tabt, n + h + 1, 0);
+ tabt[n + h]++;
+ if (mp_mul(s, tabu, tabt + l, n + h + 1 - l, tabxh, h + 1))
+ goto fail;
+ /* n + 2*h - l + 2 limbs */
+ k = 2 * h - l;
+ for(i = 0; i < l; i++)
+ tabr[i] = tabu[i + k];
+ mp_add(tabr + l, tabr + l, tabu + 2 * h, h, 0);
+ }
+ bf_free(s, tabt);
+ bf_free(s, tabu);
+ return 0;
+ fail:
+ bf_free(s, tabt);
+ bf_free(s, tabu);
+ return -1;
+}
+
+/* return -1, 0 or 1 */
+static int mp_cmp(const limb_t *taba, const limb_t *tabb, mp_size_t n)
+{
+ mp_size_t i;
+ for(i = n - 1; i >= 0; i--) {
+ if (taba[i] != tabb[i]) {
+ if (taba[i] < tabb[i])
+ return -1;
+ else
+ return 1;
+ }
+ }
+ return 0;
+}
+
+//#define DEBUG_DIVNORM_LARGE
+//#define DEBUG_DIVNORM_LARGE2
+
+/* subquadratic divnorm */
+static int mp_divnorm_large(bf_context_t *s,
+ limb_t *tabq, limb_t *taba, limb_t na,
+ const limb_t *tabb, limb_t nb)
+{
+ limb_t *tabb_inv, nq, *tabt, i, n;
+ nq = na - nb;
+#ifdef DEBUG_DIVNORM_LARGE
+ printf("na=%d nb=%d nq=%d\n", (int)na, (int)nb, (int)nq);
+ mp_print_str("a", taba, na);
+ mp_print_str("b", tabb, nb);
+#endif
+ assert(nq >= 1);
+ n = nq;
+ if (nq < nb)
+ n++;
+ tabb_inv = bf_malloc(s, sizeof(limb_t) * (n + 1));
+ tabt = bf_malloc(s, sizeof(limb_t) * 2 * (n + 1));
+ if (!tabb_inv || !tabt)
+ goto fail;
+
+ if (n >= nb) {
+ for(i = 0; i < n - nb; i++)
+ tabt[i] = 0;
+ for(i = 0; i < nb; i++)
+ tabt[i + n - nb] = tabb[i];
+ } else {
+ /* truncate B: need to increment it so that the approximate
+ inverse is smaller that the exact inverse */
+ for(i = 0; i < n; i++)
+ tabt[i] = tabb[i + nb - n];
+ if (mp_add_ui(tabt, 1, n)) {
+ /* tabt = B^n : tabb_inv = B^n */
+ memset(tabb_inv, 0, n * sizeof(limb_t));
+ tabb_inv[n] = 1;
+ goto recip_done;
+ }
+ }
+ if (mp_recip(s, tabb_inv, tabt, n))
+ goto fail;
+ recip_done:
+ /* Q=A*B^-1 */
+ if (mp_mul(s, tabt, tabb_inv, n + 1, taba + na - (n + 1), n + 1))
+ goto fail;
+
+ for(i = 0; i < nq + 1; i++)
+ tabq[i] = tabt[i + 2 * (n + 1) - (nq + 1)];
+#ifdef DEBUG_DIVNORM_LARGE
+ mp_print_str("q", tabq, nq + 1);
+#endif
+
+ bf_free(s, tabt);
+ bf_free(s, tabb_inv);
+ tabb_inv = NULL;
+
+ /* R=A-B*Q */
+ tabt = bf_malloc(s, sizeof(limb_t) * (na + 1));
+ if (!tabt)
+ goto fail;
+ if (mp_mul(s, tabt, tabq, nq + 1, tabb, nb))
+ goto fail;
+ /* we add one more limb for the result */
+ mp_sub(taba, taba, tabt, nb + 1, 0);
+ bf_free(s, tabt);
+ /* the approximated quotient is smaller than than the exact one,
+ hence we may have to increment it */
+#ifdef DEBUG_DIVNORM_LARGE2
+ int cnt = 0;
+ static int cnt_max;
+#endif
+ for(;;) {
+ if (taba[nb] == 0 && mp_cmp(taba, tabb, nb) < 0)
+ break;
+ taba[nb] -= mp_sub(taba, taba, tabb, nb, 0);
+ mp_add_ui(tabq, 1, nq + 1);
+#ifdef DEBUG_DIVNORM_LARGE2
+ cnt++;
+#endif
+ }
+#ifdef DEBUG_DIVNORM_LARGE2
+ if (cnt > cnt_max) {
+ cnt_max = cnt;
+ printf("\ncnt=%d nq=%d nb=%d\n", cnt_max, (int)nq, (int)nb);
+ }
+#endif
+ return 0;
+ fail:
+ bf_free(s, tabb_inv);
+ bf_free(s, tabt);
+ return -1;
+}
+
+int bf_mul(bf_t *r, const bf_t *a, const bf_t *b, limb_t prec,
+ bf_flags_t flags)
+{
+ int ret, r_sign;
+
+ if (a->len < b->len) {
+ const bf_t *tmp = a;
+ a = b;
+ b = tmp;
+ }
+ r_sign = a->sign ^ b->sign;
+ /* here b->len <= a->len */
+ if (b->len == 0) {
+ if (a->expn == BF_EXP_NAN || b->expn == BF_EXP_NAN) {
+ bf_set_nan(r);
+ ret = 0;
+ } else if (a->expn == BF_EXP_INF || b->expn == BF_EXP_INF) {
+ if ((a->expn == BF_EXP_INF && b->expn == BF_EXP_ZERO) ||
+ (a->expn == BF_EXP_ZERO && b->expn == BF_EXP_INF)) {
+ bf_set_nan(r);
+ ret = BF_ST_INVALID_OP;
+ } else {
+ bf_set_inf(r, r_sign);
+ ret = 0;
+ }
+ } else {
+ bf_set_zero(r, r_sign);
+ ret = 0;
+ }
+ } else {
+ bf_t tmp, *r1 = NULL;
+ limb_t a_len, b_len, precl;
+ limb_t *a_tab, *b_tab;
+
+ a_len = a->len;
+ b_len = b->len;
+
+ if ((flags & BF_RND_MASK) == BF_RNDF) {
+ /* faithful rounding does not require using the full inputs */
+ precl = (prec + 2 + LIMB_BITS - 1) / LIMB_BITS;
+ a_len = bf_min(a_len, precl);
+ b_len = bf_min(b_len, precl);
+ }
+ a_tab = a->tab + a->len - a_len;
+ b_tab = b->tab + b->len - b_len;
+
+#ifdef USE_FFT_MUL
+ if (b_len >= FFT_MUL_THRESHOLD) {
+ int mul_flags = 0;
+ if (r == a)
+ mul_flags |= FFT_MUL_R_OVERLAP_A;
+ if (r == b)
+ mul_flags |= FFT_MUL_R_OVERLAP_B;
+ if (fft_mul(r->ctx, r, a_tab, a_len, b_tab, b_len, mul_flags))
+ goto fail;
+ } else
+#endif
+ {
+ if (r == a || r == b) {
+ bf_init(r->ctx, &tmp);
+ r1 = r;
+ r = &tmp;
+ }
+ if (bf_resize(r, a_len + b_len)) {
+#ifdef USE_FFT_MUL
+ fail:
+#endif
+ bf_set_nan(r);
+ ret = BF_ST_MEM_ERROR;
+ goto done;
+ }
+ mp_mul_basecase(r->tab, a_tab, a_len, b_tab, b_len);
+ }
+ r->sign = r_sign;
+ r->expn = a->expn + b->expn;
+ ret = bf_normalize_and_round(r, prec, flags);
+ done:
+ if (r == &tmp)
+ bf_move(r1, &tmp);
+ }
+ return ret;
+}
+
+/* multiply 'r' by 2^e */
+int bf_mul_2exp(bf_t *r, slimb_t e, limb_t prec, bf_flags_t flags)
+{
+ slimb_t e_max;
+ if (r->len == 0)
+ return 0;
+ e_max = ((limb_t)1 << BF_EXT_EXP_BITS_MAX) - 1;
+ e = bf_max(e, -e_max);
+ e = bf_min(e, e_max);
+ r->expn += e;
+ return __bf_round(r, prec, flags, r->len, 0);
+}
+
+/* Return e such as a=m*2^e with m odd integer. return 0 if a is zero,
+ Infinite or Nan. */
+slimb_t bf_get_exp_min(const bf_t *a)
+{
+ slimb_t i;
+ limb_t v;
+ int k;
+
+ for(i = 0; i < a->len; i++) {
+ v = a->tab[i];
+ if (v != 0) {
+ k = ctz(v);
+ return a->expn - (a->len - i) * LIMB_BITS + k;
+ }
+ }
+ return 0;
+}
+
+/* a and b must be finite numbers with a >= 0 and b > 0. 'q' is the
+ integer defined as floor(a/b) and r = a - q * b. */
+static void bf_tdivremu(bf_t *q, bf_t *r,
+ const bf_t *a, const bf_t *b)
+{
+ if (bf_cmpu(a, b) < 0) {
+ bf_set_ui(q, 0);
+ bf_set(r, a);
+ } else {
+ bf_div(q, a, b, bf_max(a->expn - b->expn + 1, 2), BF_RNDZ);
+ bf_rint(q, BF_RNDZ);
+ bf_mul(r, q, b, BF_PREC_INF, BF_RNDZ);
+ bf_sub(r, a, r, BF_PREC_INF, BF_RNDZ);
+ }
+}
+
+static int __bf_div(bf_t *r, const bf_t *a, const bf_t *b, limb_t prec,
+ bf_flags_t flags)
+{
+ bf_context_t *s = r->ctx;
+ int ret, r_sign;
+ limb_t n, nb, precl;
+
+ r_sign = a->sign ^ b->sign;
+ if (a->expn >= BF_EXP_INF || b->expn >= BF_EXP_INF) {
+ if (a->expn == BF_EXP_NAN || b->expn == BF_EXP_NAN) {
+ bf_set_nan(r);
+ return 0;
+ } else if (a->expn == BF_EXP_INF && b->expn == BF_EXP_INF) {
+ bf_set_nan(r);
+ return BF_ST_INVALID_OP;
+ } else if (a->expn == BF_EXP_INF) {
+ bf_set_inf(r, r_sign);
+ return 0;
+ } else {
+ bf_set_zero(r, r_sign);
+ return 0;
+ }
+ } else if (a->expn == BF_EXP_ZERO) {
+ if (b->expn == BF_EXP_ZERO) {
+ bf_set_nan(r);
+ return BF_ST_INVALID_OP;
+ } else {
+ bf_set_zero(r, r_sign);
+ return 0;
+ }
+ } else if (b->expn == BF_EXP_ZERO) {
+ bf_set_inf(r, r_sign);
+ return BF_ST_DIVIDE_ZERO;
+ }
+
+ /* number of limbs of the quotient (2 extra bits for rounding) */
+ precl = (prec + 2 + LIMB_BITS - 1) / LIMB_BITS;
+ nb = b->len;
+ n = bf_max(a->len, precl);
+
+ {
+ limb_t *taba, na;
+ slimb_t d;
+
+ na = n + nb;
+ taba = bf_malloc(s, (na + 1) * sizeof(limb_t));
+ if (!taba)
+ goto fail;
+ d = na - a->len;
+ memset(taba, 0, d * sizeof(limb_t));
+ memcpy(taba + d, a->tab, a->len * sizeof(limb_t));
+ if (bf_resize(r, n + 1))
+ goto fail1;
+ if (mp_divnorm(s, r->tab, taba, na, b->tab, nb)) {
+ fail1:
+ bf_free(s, taba);
+ goto fail;
+ }
+ /* see if non zero remainder */
+ if (mp_scan_nz(taba, nb))
+ r->tab[0] |= 1;
+ bf_free(r->ctx, taba);
+ r->expn = a->expn - b->expn + LIMB_BITS;
+ r->sign = r_sign;
+ ret = bf_normalize_and_round(r, prec, flags);
+ }
+ return ret;
+ fail:
+ bf_set_nan(r);
+ return BF_ST_MEM_ERROR;
+}
+
+/* division and remainder.
+
+ rnd_mode is the rounding mode for the quotient. The additional
+ rounding mode BF_RND_EUCLIDIAN is supported.
+
+ 'q' is an integer. 'r' is rounded with prec and flags (prec can be
+ BF_PREC_INF).
+*/
+int bf_divrem(bf_t *q, bf_t *r, const bf_t *a, const bf_t *b,
+ limb_t prec, bf_flags_t flags, int rnd_mode)
+{
+ bf_t a1_s, *a1 = &a1_s;
+ bf_t b1_s, *b1 = &b1_s;
+ int q_sign, ret;
+ BOOL is_ceil, is_rndn;
+
+ assert(q != a && q != b);
+ assert(r != a && r != b);
+ assert(q != r);
+
+ if (a->len == 0 || b->len == 0) {
+ bf_set_zero(q, 0);
+ if (a->expn == BF_EXP_NAN || b->expn == BF_EXP_NAN) {
+ bf_set_nan(r);
+ return 0;
+ } else if (a->expn == BF_EXP_INF || b->expn == BF_EXP_ZERO) {
+ bf_set_nan(r);
+ return BF_ST_INVALID_OP;
+ } else {
+ bf_set(r, a);
+ return bf_round(r, prec, flags);
+ }
+ }
+
+ q_sign = a->sign ^ b->sign;
+ is_rndn = (rnd_mode == BF_RNDN || rnd_mode == BF_RNDNA);
+ switch(rnd_mode) {
+ default:
+ case BF_RNDZ:
+ case BF_RNDN:
+ case BF_RNDNA:
+ is_ceil = FALSE;
+ break;
+ case BF_RNDD:
+ is_ceil = q_sign;
+ break;
+ case BF_RNDU:
+ is_ceil = q_sign ^ 1;
+ break;
+ case BF_RNDA:
+ is_ceil = TRUE;
+ break;
+ case BF_DIVREM_EUCLIDIAN:
+ is_ceil = a->sign;
+ break;
+ }
+
+ a1->expn = a->expn;
+ a1->tab = a->tab;
+ a1->len = a->len;
+ a1->sign = 0;
+
+ b1->expn = b->expn;
+ b1->tab = b->tab;
+ b1->len = b->len;
+ b1->sign = 0;
+
+ /* XXX: could improve to avoid having a large 'q' */
+ bf_tdivremu(q, r, a1, b1);
+ if (bf_is_nan(q) || bf_is_nan(r))
+ goto fail;
+
+ if (r->len != 0) {
+ if (is_rndn) {
+ int res;
+ b1->expn--;
+ res = bf_cmpu(r, b1);
+ b1->expn++;
+ if (res > 0 ||
+ (res == 0 &&
+ (rnd_mode == BF_RNDNA ||
+ get_bit(q->tab, q->len, q->len * LIMB_BITS - q->expn)))) {
+ goto do_sub_r;
+ }
+ } else if (is_ceil) {
+ do_sub_r:
+ ret = bf_add_si(q, q, 1, BF_PREC_INF, BF_RNDZ);
+ ret |= bf_sub(r, r, b1, BF_PREC_INF, BF_RNDZ);
+ if (ret & BF_ST_MEM_ERROR)
+ goto fail;
+ }
+ }
+
+ r->sign ^= a->sign;
+ q->sign = q_sign;
+ return bf_round(r, prec, flags);
+ fail:
+ bf_set_nan(q);
+ bf_set_nan(r);
+ return BF_ST_MEM_ERROR;
+}
+
+int bf_rem(bf_t *r, const bf_t *a, const bf_t *b, limb_t prec,
+ bf_flags_t flags, int rnd_mode)
+{
+ bf_t q_s, *q = &q_s;
+ int ret;
+
+ bf_init(r->ctx, q);
+ ret = bf_divrem(q, r, a, b, prec, flags, rnd_mode);
+ bf_delete(q);
+ return ret;
+}
+
+static inline int bf_get_limb(slimb_t *pres, const bf_t *a, int flags)
+{
+#if LIMB_BITS == 32
+ return bf_get_int32(pres, a, flags);
+#else
+ return bf_get_int64(pres, a, flags);
+#endif
+}
+
+int bf_remquo(slimb_t *pq, bf_t *r, const bf_t *a, const bf_t *b, limb_t prec,
+ bf_flags_t flags, int rnd_mode)
+{
+ bf_t q_s, *q = &q_s;
+ int ret;
+
+ bf_init(r->ctx, q);
+ ret = bf_divrem(q, r, a, b, prec, flags, rnd_mode);
+ bf_get_limb(pq, q, BF_GET_INT_MOD);
+ bf_delete(q);
+ return ret;
+}
+
+static __maybe_unused inline limb_t mul_mod(limb_t a, limb_t b, limb_t m)
+{
+ dlimb_t t;
+ t = (dlimb_t)a * (dlimb_t)b;
+ return t % m;
+}
+
+#if defined(USE_MUL_CHECK)
+static limb_t mp_mod1(const limb_t *tab, limb_t n, limb_t m, limb_t r)
+{
+ slimb_t i;
+ dlimb_t t;
+
+ for(i = n - 1; i >= 0; i--) {
+ t = ((dlimb_t)r << LIMB_BITS) | tab[i];
+ r = t % m;
+ }
+ return r;
+}
+#endif
+
+static const uint16_t sqrt_table[192] = {
+128,128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,144,145,146,147,148,149,150,150,151,152,153,154,155,155,156,157,158,159,160,160,161,162,163,163,164,165,166,167,167,168,169,170,170,171,172,173,173,174,175,176,176,177,178,178,179,180,181,181,182,183,183,184,185,185,186,187,187,188,189,189,190,191,192,192,193,193,194,195,195,196,197,197,198,199,199,200,201,201,202,203,203,204,204,205,206,206,207,208,208,209,209,210,211,211,212,212,213,214,214,215,215,216,217,217,218,218,219,219,220,221,221,222,222,223,224,224,225,225,226,226,227,227,228,229,229,230,230,231,231,232,232,233,234,234,235,235,236,236,237,237,238,238,239,240,240,241,241,242,242,243,243,244,244,245,245,246,246,247,247,248,248,249,249,250,250,251,251,252,252,253,253,254,254,255,
+};
+
+/* a >= 2^(LIMB_BITS - 2). Return (s, r) with s=floor(sqrt(a)) and
+ r=a-s^2. 0 <= r <= 2 * s */
+static limb_t mp_sqrtrem1(limb_t *pr, limb_t a)
+{
+ limb_t s1, r1, s, r, q, u, num;
+
+ /* use a table for the 16 -> 8 bit sqrt */
+ s1 = sqrt_table[(a >> (LIMB_BITS - 8)) - 64];
+ r1 = (a >> (LIMB_BITS - 16)) - s1 * s1;
+ if (r1 > 2 * s1) {
+ r1 -= 2 * s1 + 1;
+ s1++;
+ }
+
+ /* one iteration to get a 32 -> 16 bit sqrt */
+ num = (r1 << 8) | ((a >> (LIMB_BITS - 32 + 8)) & 0xff);
+ q = num / (2 * s1); /* q <= 2^8 */
+ u = num % (2 * s1);
+ s = (s1 << 8) + q;
+ r = (u << 8) | ((a >> (LIMB_BITS - 32)) & 0xff);
+ r -= q * q;
+ if ((slimb_t)r < 0) {
+ s--;
+ r += 2 * s + 1;
+ }
+
+#if LIMB_BITS == 64
+ s1 = s;
+ r1 = r;
+ /* one more iteration for 64 -> 32 bit sqrt */
+ num = (r1 << 16) | ((a >> (LIMB_BITS - 64 + 16)) & 0xffff);
+ q = num / (2 * s1); /* q <= 2^16 */
+ u = num % (2 * s1);
+ s = (s1 << 16) + q;
+ r = (u << 16) | ((a >> (LIMB_BITS - 64)) & 0xffff);
+ r -= q * q;
+ if ((slimb_t)r < 0) {
+ s--;
+ r += 2 * s + 1;
+ }
+#endif
+ *pr = r;
+ return s;
+}
+
+/* return floor(sqrt(a)) */
+limb_t bf_isqrt(limb_t a)
+{
+ limb_t s, r;
+ int k;
+
+ if (a == 0)
+ return 0;
+ k = clz(a) & ~1;
+ s = mp_sqrtrem1(&r, a << k);
+ s >>= (k >> 1);
+ return s;
+}
+
+static limb_t mp_sqrtrem2(limb_t *tabs, limb_t *taba)
+{
+ limb_t s1, r1, s, q, u, a0, a1;
+ dlimb_t r, num;
+ int l;
+
+ a0 = taba[0];
+ a1 = taba[1];
+ s1 = mp_sqrtrem1(&r1, a1);
+ l = LIMB_BITS / 2;
+ num = ((dlimb_t)r1 << l) | (a0 >> l);
+ q = num / (2 * s1);
+ u = num % (2 * s1);
+ s = (s1 << l) + q;
+ r = ((dlimb_t)u << l) | (a0 & (((limb_t)1 << l) - 1));
+ if (unlikely((q >> l) != 0))
+ r -= (dlimb_t)1 << LIMB_BITS; /* special case when q=2^l */
+ else
+ r -= q * q;
+ if ((slimb_t)(r >> LIMB_BITS) < 0) {
+ s--;
+ r += 2 * (dlimb_t)s + 1;
+ }
+ tabs[0] = s;
+ taba[0] = r;
+ return r >> LIMB_BITS;
+}
+
+//#define DEBUG_SQRTREM
+
+/* tmp_buf must contain (n / 2 + 1 limbs). *prh contains the highest
+ limb of the remainder. */
+static int mp_sqrtrem_rec(bf_context_t *s, limb_t *tabs, limb_t *taba, limb_t n,
+ limb_t *tmp_buf, limb_t *prh)
+{
+ limb_t l, h, rh, ql, qh, c, i;
+
+ if (n == 1) {
+ *prh = mp_sqrtrem2(tabs, taba);
+ return 0;
+ }
+#ifdef DEBUG_SQRTREM
+ mp_print_str("a", taba, 2 * n);
+#endif
+ l = n / 2;
+ h = n - l;
+ if (mp_sqrtrem_rec(s, tabs + l, taba + 2 * l, h, tmp_buf, &qh))
+ return -1;
+#ifdef DEBUG_SQRTREM
+ mp_print_str("s1", tabs + l, h);
+ mp_print_str_h("r1", taba + 2 * l, h, qh);
+ mp_print_str_h("r2", taba + l, n, qh);
+#endif
+
+ /* the remainder is in taba + 2 * l. Its high bit is in qh */
+ if (qh) {
+ mp_sub(taba + 2 * l, taba + 2 * l, tabs + l, h, 0);
+ }
+ /* instead of dividing by 2*s, divide by s (which is normalized)
+ and update q and r */
+ if (mp_divnorm(s, tmp_buf, taba + l, n, tabs + l, h))
+ return -1;
+ qh += tmp_buf[l];
+ for(i = 0; i < l; i++)
+ tabs[i] = tmp_buf[i];
+ ql = mp_shr(tabs, tabs, l, 1, qh & 1);
+ qh = qh >> 1; /* 0 or 1 */
+ if (ql)
+ rh = mp_add(taba + l, taba + l, tabs + l, h, 0);
+ else
+ rh = 0;
+#ifdef DEBUG_SQRTREM
+ mp_print_str_h("q", tabs, l, qh);
+ mp_print_str_h("u", taba + l, h, rh);
+#endif
+
+ mp_add_ui(tabs + l, qh, h);
+#ifdef DEBUG_SQRTREM
+ mp_print_str_h("s2", tabs, n, sh);
+#endif
+
+ /* q = qh, tabs[l - 1 ... 0], r = taba[n - 1 ... l] */
+ /* subtract q^2. if qh = 1 then q = B^l, so we can take shortcuts */
+ if (qh) {
+ c = qh;
+ } else {
+ if (mp_mul(s, taba + n, tabs, l, tabs, l))
+ return -1;
+ c = mp_sub(taba, taba, taba + n, 2 * l, 0);
+ }
+ rh -= mp_sub_ui(taba + 2 * l, c, n - 2 * l);
+ if ((slimb_t)rh < 0) {
+ mp_sub_ui(tabs, 1, n);
+ rh += mp_add_mul1(taba, tabs, n, 2);
+ rh += mp_add_ui(taba, 1, n);
+ }
+ *prh = rh;
+ return 0;
+}
+
+/* 'taba' has 2*n limbs with n >= 1 and taba[2*n-1] >= 2 ^ (LIMB_BITS
+ - 2). Return (s, r) with s=floor(sqrt(a)) and r=a-s^2. 0 <= r <= 2
+ * s. tabs has n limbs. r is returned in the lower n limbs of
+ taba. Its r[n] is the returned value of the function. */
+/* Algorithm from the article "Karatsuba Square Root" by Paul Zimmermann and
+ inspirated from its GMP implementation */
+int mp_sqrtrem(bf_context_t *s, limb_t *tabs, limb_t *taba, limb_t n)
+{
+ limb_t tmp_buf1[8];
+ limb_t *tmp_buf;
+ mp_size_t n2;
+ int ret;
+ n2 = n / 2 + 1;
+ if (n2 <= countof(tmp_buf1)) {
+ tmp_buf = tmp_buf1;
+ } else {
+ tmp_buf = bf_malloc(s, sizeof(limb_t) * n2);
+ if (!tmp_buf)
+ return -1;
+ }
+ ret = mp_sqrtrem_rec(s, tabs, taba, n, tmp_buf, taba + n);
+ if (tmp_buf != tmp_buf1)
+ bf_free(s, tmp_buf);
+ return ret;
+}
+
+/* Integer square root with remainder. 'a' must be an integer. r =
+ floor(sqrt(a)) and rem = a - r^2. BF_ST_INEXACT is set if the result
+ is inexact. 'rem' can be NULL if the remainder is not needed. */
+int bf_sqrtrem(bf_t *r, bf_t *rem1, const bf_t *a)
+{
+ int ret;
+
+ if (a->len == 0) {
+ if (a->expn == BF_EXP_NAN) {
+ bf_set_nan(r);
+ } else if (a->expn == BF_EXP_INF && a->sign) {
+ goto invalid_op;
+ } else {
+ bf_set(r, a);
+ }
+ if (rem1)
+ bf_set_ui(rem1, 0);
+ ret = 0;
+ } else if (a->sign) {
+ invalid_op:
+ bf_set_nan(r);
+ if (rem1)
+ bf_set_ui(rem1, 0);
+ ret = BF_ST_INVALID_OP;
+ } else {
+ bf_t rem_s, *rem;
+
+ bf_sqrt(r, a, (a->expn + 1) / 2, BF_RNDZ);
+ bf_rint(r, BF_RNDZ);
+ /* see if the result is exact by computing the remainder */
+ if (rem1) {
+ rem = rem1;
+ } else {
+ rem = &rem_s;
+ bf_init(r->ctx, rem);
+ }
+ /* XXX: could avoid recomputing the remainder */
+ bf_mul(rem, r, r, BF_PREC_INF, BF_RNDZ);
+ bf_neg(rem);
+ bf_add(rem, rem, a, BF_PREC_INF, BF_RNDZ);
+ if (bf_is_nan(rem)) {
+ ret = BF_ST_MEM_ERROR;
+ goto done;
+ }
+ if (rem->len != 0) {
+ ret = BF_ST_INEXACT;
+ } else {
+ ret = 0;
+ }
+ done:
+ if (!rem1)
+ bf_delete(rem);
+ }
+ return ret;
+}
+
+int bf_sqrt(bf_t *r, const bf_t *a, limb_t prec, bf_flags_t flags)
+{
+ bf_context_t *s = a->ctx;
+ int ret;
+
+ assert(r != a);
+
+ if (a->len == 0) {
+ if (a->expn == BF_EXP_NAN) {
+ bf_set_nan(r);
+ } else if (a->expn == BF_EXP_INF && a->sign) {
+ goto invalid_op;
+ } else {
+ bf_set(r, a);
+ }
+ ret = 0;
+ } else if (a->sign) {
+ invalid_op:
+ bf_set_nan(r);
+ ret = BF_ST_INVALID_OP;
+ } else {
+ limb_t *a1;
+ slimb_t n, n1;
+ limb_t res;
+
+ /* convert the mantissa to an integer with at least 2 *
+ prec + 4 bits */
+ n = (2 * (prec + 2) + 2 * LIMB_BITS - 1) / (2 * LIMB_BITS);
+ if (bf_resize(r, n))
+ goto fail;
+ a1 = bf_malloc(s, sizeof(limb_t) * 2 * n);
+ if (!a1)
+ goto fail;
+ n1 = bf_min(2 * n, a->len);
+ memset(a1, 0, (2 * n - n1) * sizeof(limb_t));
+ memcpy(a1 + 2 * n - n1, a->tab + a->len - n1, n1 * sizeof(limb_t));
+ if (a->expn & 1) {
+ res = mp_shr(a1, a1, 2 * n, 1, 0);
+ } else {
+ res = 0;
+ }
+ if (mp_sqrtrem(s, r->tab, a1, n)) {
+ bf_free(s, a1);
+ goto fail;
+ }
+ if (!res) {
+ res = mp_scan_nz(a1, n + 1);
+ }
+ bf_free(s, a1);
+ if (!res) {
+ res = mp_scan_nz(a->tab, a->len - n1);
+ }
+ if (res != 0)
+ r->tab[0] |= 1;
+ r->sign = 0;
+ r->expn = (a->expn + 1) >> 1;
+ ret = bf_round(r, prec, flags);
+ }
+ return ret;
+ fail:
+ bf_set_nan(r);
+ return BF_ST_MEM_ERROR;
+}
+
+static no_inline int bf_op2(bf_t *r, const bf_t *a, const bf_t *b, limb_t prec,
+ bf_flags_t flags, bf_op2_func_t *func)
+{
+ bf_t tmp;
+ int ret;
+
+ if (r == a || r == b) {
+ bf_init(r->ctx, &tmp);
+ ret = func(&tmp, a, b, prec, flags);
+ bf_move(r, &tmp);
+ } else {
+ ret = func(r, a, b, prec, flags);
+ }
+ return ret;
+}
+
+int bf_add(bf_t *r, const bf_t *a, const bf_t *b, limb_t prec,
+ bf_flags_t flags)
+{
+ return bf_op2(r, a, b, prec, flags, __bf_add);
+}
+
+int bf_sub(bf_t *r, const bf_t *a, const bf_t *b, limb_t prec,
+ bf_flags_t flags)
+{
+ return bf_op2(r, a, b, prec, flags, __bf_sub);
+}
+
+int bf_div(bf_t *r, const bf_t *a, const bf_t *b, limb_t prec,
+ bf_flags_t flags)
+{
+ return bf_op2(r, a, b, prec, flags, __bf_div);
+}
+
+int bf_mul_ui(bf_t *r, const bf_t *a, uint64_t b1, limb_t prec,
+ bf_flags_t flags)
+{
+ bf_t b;
+ int ret;
+ bf_init(r->ctx, &b);
+ ret = bf_set_ui(&b, b1);
+ ret |= bf_mul(r, a, &b, prec, flags);
+ bf_delete(&b);
+ return ret;
+}
+
+int bf_mul_si(bf_t *r, const bf_t *a, int64_t b1, limb_t prec,
+ bf_flags_t flags)
+{
+ bf_t b;
+ int ret;
+ bf_init(r->ctx, &b);
+ ret = bf_set_si(&b, b1);
+ ret |= bf_mul(r, a, &b, prec, flags);
+ bf_delete(&b);
+ return ret;
+}
+
+int bf_add_si(bf_t *r, const bf_t *a, int64_t b1, limb_t prec,
+ bf_flags_t flags)
+{
+ bf_t b;
+ int ret;
+
+ bf_init(r->ctx, &b);
+ ret = bf_set_si(&b, b1);
+ ret |= bf_add(r, a, &b, prec, flags);
+ bf_delete(&b);
+ return ret;
+}
+
+static int bf_pow_ui(bf_t *r, const bf_t *a, limb_t b, limb_t prec,
+ bf_flags_t flags)
+{
+ int ret, n_bits, i;
+
+ assert(r != a);
+ if (b == 0)
+ return bf_set_ui(r, 1);
+ ret = bf_set(r, a);
+ n_bits = LIMB_BITS - clz(b);
+ for(i = n_bits - 2; i >= 0; i--) {
+ ret |= bf_mul(r, r, r, prec, flags);
+ if ((b >> i) & 1)
+ ret |= bf_mul(r, r, a, prec, flags);
+ }
+ return ret;
+}
+
+static int bf_pow_ui_ui(bf_t *r, limb_t a1, limb_t b,
+ limb_t prec, bf_flags_t flags)
+{
+ bf_t a;
+ int ret;
+
+#ifdef USE_BF_DEC
+ if (a1 == 10 && b <= LIMB_DIGITS) {
+ /* use precomputed powers. We do not round at this point
+ because we expect the caller to do it */
+ ret = bf_set_ui(r, mp_pow_dec[b]);
+ } else
+#endif
+ {
+ bf_init(r->ctx, &a);
+ ret = bf_set_ui(&a, a1);
+ ret |= bf_pow_ui(r, &a, b, prec, flags);
+ bf_delete(&a);
+ }
+ return ret;
+}
+
+/* convert to integer (infinite precision) */
+int bf_rint(bf_t *r, int rnd_mode)
+{
+ return bf_round(r, 0, rnd_mode | BF_FLAG_RADPNT_PREC);
+}
+
+/* logical operations */
+#define BF_LOGIC_OR 0
+#define BF_LOGIC_XOR 1
+#define BF_LOGIC_AND 2
+
+static inline limb_t bf_logic_op1(limb_t a, limb_t b, int op)
+{
+ switch(op) {
+ case BF_LOGIC_OR:
+ return a | b;
+ case BF_LOGIC_XOR:
+ return a ^ b;
+ default:
+ case BF_LOGIC_AND:
+ return a & b;
+ }
+}
+
+static int bf_logic_op(bf_t *r, const bf_t *a1, const bf_t *b1, int op)
+{
+ bf_t b1_s, a1_s, *a, *b;
+ limb_t a_sign, b_sign, r_sign;
+ slimb_t l, i, a_bit_offset, b_bit_offset;
+ limb_t v1, v2, v1_mask, v2_mask, r_mask;
+ int ret;
+
+ assert(r != a1 && r != b1);
+
+ if (a1->expn <= 0)
+ a_sign = 0; /* minus zero is considered as positive */
+ else
+ a_sign = a1->sign;
+
+ if (b1->expn <= 0)
+ b_sign = 0; /* minus zero is considered as positive */
+ else
+ b_sign = b1->sign;
+
+ if (a_sign) {
+ a = &a1_s;
+ bf_init(r->ctx, a);
+ if (bf_add_si(a, a1, 1, BF_PREC_INF, BF_RNDZ)) {
+ b = NULL;
+ goto fail;
+ }
+ } else {
+ a = (bf_t *)a1;
+ }
+
+ if (b_sign) {
+ b = &b1_s;
+ bf_init(r->ctx, b);
+ if (bf_add_si(b, b1, 1, BF_PREC_INF, BF_RNDZ))
+ goto fail;
+ } else {
+ b = (bf_t *)b1;
+ }
+
+ r_sign = bf_logic_op1(a_sign, b_sign, op);
+ if (op == BF_LOGIC_AND && r_sign == 0) {
+ /* no need to compute extra zeros for and */
+ if (a_sign == 0 && b_sign == 0)
+ l = bf_min(a->expn, b->expn);
+ else if (a_sign == 0)
+ l = a->expn;
+ else
+ l = b->expn;
+ } else {
+ l = bf_max(a->expn, b->expn);
+ }
+ /* Note: a or b can be zero */
+ l = (bf_max(l, 1) + LIMB_BITS - 1) / LIMB_BITS;
+ if (bf_resize(r, l))
+ goto fail;
+ a_bit_offset = a->len * LIMB_BITS - a->expn;
+ b_bit_offset = b->len * LIMB_BITS - b->expn;
+ v1_mask = -a_sign;
+ v2_mask = -b_sign;
+ r_mask = -r_sign;
+ for(i = 0; i < l; i++) {
+ v1 = get_bits(a->tab, a->len, a_bit_offset + i * LIMB_BITS) ^ v1_mask;
+ v2 = get_bits(b->tab, b->len, b_bit_offset + i * LIMB_BITS) ^ v2_mask;
+ r->tab[i] = bf_logic_op1(v1, v2, op) ^ r_mask;
+ }
+ r->expn = l * LIMB_BITS;
+ r->sign = r_sign;
+ bf_normalize_and_round(r, BF_PREC_INF, BF_RNDZ); /* cannot fail */
+ if (r_sign) {
+ if (bf_add_si(r, r, -1, BF_PREC_INF, BF_RNDZ))
+ goto fail;
+ }
+ ret = 0;
+ done:
+ if (a == &a1_s)
+ bf_delete(a);
+ if (b == &b1_s)
+ bf_delete(b);
+ return ret;
+ fail:
+ bf_set_nan(r);
+ ret = BF_ST_MEM_ERROR;
+ goto done;
+}
+
+/* 'a' and 'b' must be integers. Return 0 or BF_ST_MEM_ERROR. */
+int bf_logic_or(bf_t *r, const bf_t *a, const bf_t *b)
+{
+ return bf_logic_op(r, a, b, BF_LOGIC_OR);
+}
+
+/* 'a' and 'b' must be integers. Return 0 or BF_ST_MEM_ERROR. */
+int bf_logic_xor(bf_t *r, const bf_t *a, const bf_t *b)
+{
+ return bf_logic_op(r, a, b, BF_LOGIC_XOR);
+}
+
+/* 'a' and 'b' must be integers. Return 0 or BF_ST_MEM_ERROR. */
+int bf_logic_and(bf_t *r, const bf_t *a, const bf_t *b)
+{
+ return bf_logic_op(r, a, b, BF_LOGIC_AND);
+}
+
+/* conversion between fixed size types */
+
+typedef union {
+ double d;
+ uint64_t u;
+} Float64Union;
+
+int bf_get_float64(const bf_t *a, double *pres, bf_rnd_t rnd_mode)
+{
+ Float64Union u;
+ int e, ret;
+ uint64_t m;
+
+ ret = 0;
+ if (a->expn == BF_EXP_NAN) {
+ u.u = 0x7ff8000000000000; /* quiet nan */
+ } else {
+ bf_t b_s, *b = &b_s;
+
+ bf_init(a->ctx, b);
+ bf_set(b, a);
+ if (bf_is_finite(b)) {
+ ret = bf_round(b, 53, rnd_mode | BF_FLAG_SUBNORMAL | bf_set_exp_bits(11));
+ }
+ if (b->expn == BF_EXP_INF) {
+ e = (1 << 11) - 1;
+ m = 0;
+ } else if (b->expn == BF_EXP_ZERO) {
+ e = 0;
+ m = 0;
+ } else {
+ e = b->expn + 1023 - 1;
+#if LIMB_BITS == 32
+ if (b->len == 2) {
+ m = ((uint64_t)b->tab[1] << 32) | b->tab[0];
+ } else {
+ m = ((uint64_t)b->tab[0] << 32);
+ }
+#else
+ m = b->tab[0];
+#endif
+ if (e <= 0) {
+ /* subnormal */
+ m = m >> (12 - e);
+ e = 0;
+ } else {
+ m = (m << 1) >> 12;
+ }
+ }
+ u.u = m | ((uint64_t)e << 52) | ((uint64_t)b->sign << 63);
+ bf_delete(b);
+ }
+ *pres = u.d;
+ return ret;
+}
+
+int bf_set_float64(bf_t *a, double d)
+{
+ Float64Union u;
+ uint64_t m;
+ int shift, e, sgn;
+
+ u.d = d;
+ sgn = u.u >> 63;
+ e = (u.u >> 52) & ((1 << 11) - 1);
+ m = u.u & (((uint64_t)1 << 52) - 1);
+ if (e == ((1 << 11) - 1)) {
+ if (m != 0) {
+ bf_set_nan(a);
+ } else {
+ bf_set_inf(a, sgn);
+ }
+ } else if (e == 0) {
+ if (m == 0) {
+ bf_set_zero(a, sgn);
+ } else {
+ /* subnormal number */
+ m <<= 12;
+ shift = clz64(m);
+ m <<= shift;
+ e = -shift;
+ goto norm;
+ }
+ } else {
+ m = (m << 11) | ((uint64_t)1 << 63);
+ norm:
+ a->expn = e - 1023 + 1;
+#if LIMB_BITS == 32
+ if (bf_resize(a, 2))
+ goto fail;
+ a->tab[0] = m;
+ a->tab[1] = m >> 32;
+#else
+ if (bf_resize(a, 1))
+ goto fail;
+ a->tab[0] = m;
+#endif
+ a->sign = sgn;
+ }
+ return 0;
+fail:
+ bf_set_nan(a);
+ return BF_ST_MEM_ERROR;
+}
+
+/* The rounding mode is always BF_RNDZ. Return BF_ST_INVALID_OP if there
+ is an overflow and 0 otherwise. */
+int bf_get_int32(int *pres, const bf_t *a, int flags)
+{
+ uint32_t v;
+ int ret;
+ if (a->expn >= BF_EXP_INF) {
+ ret = BF_ST_INVALID_OP;
+ if (flags & BF_GET_INT_MOD) {
+ v = 0;
+ } else if (a->expn == BF_EXP_INF) {
+ v = (uint32_t)INT32_MAX + a->sign;
+ } else {
+ v = INT32_MAX;
+ }
+ } else if (a->expn <= 0) {
+ v = 0;
+ ret = 0;
+ } else if (a->expn <= 31) {
+ v = a->tab[a->len - 1] >> (LIMB_BITS - a->expn);
+ if (a->sign)
+ v = -v;
+ ret = 0;
+ } else if (!(flags & BF_GET_INT_MOD)) {
+ ret = BF_ST_INVALID_OP;
+ if (a->sign) {
+ v = (uint32_t)INT32_MAX + 1;
+ if (a->expn == 32 &&
+ (a->tab[a->len - 1] >> (LIMB_BITS - 32)) == v) {
+ ret = 0;
+ }
+ } else {
+ v = INT32_MAX;
+ }
+ } else {
+ v = get_bits(a->tab, a->len, a->len * LIMB_BITS - a->expn);
+ if (a->sign)
+ v = -v;
+ ret = 0;
+ }
+ *pres = v;
+ return ret;
+}
+
+/* The rounding mode is always BF_RNDZ. Return BF_ST_INVALID_OP if there
+ is an overflow and 0 otherwise. */
+int bf_get_int64(int64_t *pres, const bf_t *a, int flags)
+{
+ uint64_t v;
+ int ret;
+ if (a->expn >= BF_EXP_INF) {
+ ret = BF_ST_INVALID_OP;
+ if (flags & BF_GET_INT_MOD) {
+ v = 0;
+ } else if (a->expn == BF_EXP_INF) {
+ v = (uint64_t)INT64_MAX + a->sign;
+ } else {
+ v = INT64_MAX;
+ }
+ } else if (a->expn <= 0) {
+ v = 0;
+ ret = 0;
+ } else if (a->expn <= 63) {
+#if LIMB_BITS == 32
+ if (a->expn <= 32)
+ v = a->tab[a->len - 1] >> (LIMB_BITS - a->expn);
+ else
+ v = (((uint64_t)a->tab[a->len - 1] << 32) |
+ get_limbz(a, a->len - 2)) >> (64 - a->expn);
+#else
+ v = a->tab[a->len - 1] >> (LIMB_BITS - a->expn);
+#endif
+ if (a->sign)
+ v = -v;
+ ret = 0;
+ } else if (!(flags & BF_GET_INT_MOD)) {
+ ret = BF_ST_INVALID_OP;
+ if (a->sign) {
+ uint64_t v1;
+ v = (uint64_t)INT64_MAX + 1;
+ if (a->expn == 64) {
+ v1 = a->tab[a->len - 1];
+#if LIMB_BITS == 32
+ v1 = (v1 << 32) | get_limbz(a, a->len - 2);
+#endif
+ if (v1 == v)
+ ret = 0;
+ }
+ } else {
+ v = INT64_MAX;
+ }
+ } else {
+ slimb_t bit_pos = a->len * LIMB_BITS - a->expn;
+ v = get_bits(a->tab, a->len, bit_pos);
+#if LIMB_BITS == 32
+ v |= (uint64_t)get_bits(a->tab, a->len, bit_pos + 32) << 32;
+#endif
+ if (a->sign)
+ v = -v;
+ ret = 0;
+ }
+ *pres = v;
+ return ret;
+}
+
+/* The rounding mode is always BF_RNDZ. Return BF_ST_INVALID_OP if there
+ is an overflow and 0 otherwise. */
+int bf_get_uint64(uint64_t *pres, const bf_t *a)
+{
+ uint64_t v;
+ int ret;
+ if (a->expn == BF_EXP_NAN) {
+ goto overflow;
+ } else if (a->expn <= 0) {
+ v = 0;
+ ret = 0;
+ } else if (a->sign) {
+ v = 0;
+ ret = BF_ST_INVALID_OP;
+ } else if (a->expn <= 64) {
+#if LIMB_BITS == 32
+ if (a->expn <= 32)
+ v = a->tab[a->len - 1] >> (LIMB_BITS - a->expn);
+ else
+ v = (((uint64_t)a->tab[a->len - 1] << 32) |
+ get_limbz(a, a->len - 2)) >> (64 - a->expn);
+#else
+ v = a->tab[a->len - 1] >> (LIMB_BITS - a->expn);
+#endif
+ ret = 0;
+ } else {
+ overflow:
+ v = UINT64_MAX;
+ ret = BF_ST_INVALID_OP;
+ }
+ *pres = v;
+ return ret;
+}
+
+/* base conversion from radix */
+
+static const uint8_t digits_per_limb_table[BF_RADIX_MAX - 1] = {
+#if LIMB_BITS == 32
+32,20,16,13,12,11,10,10, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
+#else
+64,40,32,27,24,22,21,20,19,18,17,17,16,16,16,15,15,15,14,14,14,14,13,13,13,13,13,13,13,12,12,12,12,12,12,
+#endif
+};
+
+static limb_t get_limb_radix(int radix)
+{
+ int i, k;
+ limb_t radixl;
+
+ k = digits_per_limb_table[radix - 2];
+ radixl = radix;
+ for(i = 1; i < k; i++)
+ radixl *= radix;
+ return radixl;
+}
+
+/* return != 0 if error */
+static int bf_integer_from_radix_rec(bf_t *r, const limb_t *tab,
+ limb_t n, int level, limb_t n0,
+ limb_t radix, bf_t *pow_tab)
+{
+ int ret;
+ if (n == 1) {
+ ret = bf_set_ui(r, tab[0]);
+ } else {
+ bf_t T_s, *T = &T_s, *B;
+ limb_t n1, n2;
+
+ n2 = (((n0 * 2) >> (level + 1)) + 1) / 2;
+ n1 = n - n2;
+ // printf("level=%d n0=%ld n1=%ld n2=%ld\n", level, n0, n1, n2);
+ B = &pow_tab[level];
+ if (B->len == 0) {
+ ret = bf_pow_ui_ui(B, radix, n2, BF_PREC_INF, BF_RNDZ);
+ if (ret)
+ return ret;
+ }
+ ret = bf_integer_from_radix_rec(r, tab + n2, n1, level + 1, n0,
+ radix, pow_tab);
+ if (ret)
+ return ret;
+ ret = bf_mul(r, r, B, BF_PREC_INF, BF_RNDZ);
+ if (ret)
+ return ret;
+ bf_init(r->ctx, T);
+ ret = bf_integer_from_radix_rec(T, tab, n2, level + 1, n0,
+ radix, pow_tab);
+ if (!ret)
+ ret = bf_add(r, r, T, BF_PREC_INF, BF_RNDZ);
+ bf_delete(T);
+ }
+ return ret;
+ // bf_print_str(" r=", r);
+}
+
+/* return 0 if OK != 0 if memory error */
+static int bf_integer_from_radix(bf_t *r, const limb_t *tab,
+ limb_t n, limb_t radix)
+{
+ bf_context_t *s = r->ctx;
+ int pow_tab_len, i, ret;
+ limb_t radixl;
+ bf_t *pow_tab;
+
+ radixl = get_limb_radix(radix);
+ pow_tab_len = ceil_log2(n) + 2; /* XXX: check */
+ pow_tab = bf_malloc(s, sizeof(pow_tab[0]) * pow_tab_len);
+ if (!pow_tab)
+ return -1;
+ for(i = 0; i < pow_tab_len; i++)
+ bf_init(r->ctx, &pow_tab[i]);
+ ret = bf_integer_from_radix_rec(r, tab, n, 0, n, radixl, pow_tab);
+ for(i = 0; i < pow_tab_len; i++) {
+ bf_delete(&pow_tab[i]);
+ }
+ bf_free(s, pow_tab);
+ return ret;
+}
+
+/* compute and round T * radix^expn. */
+int bf_mul_pow_radix(bf_t *r, const bf_t *T, limb_t radix,
+ slimb_t expn, limb_t prec, bf_flags_t flags)
+{
+ int ret, expn_sign, overflow;
+ slimb_t e, extra_bits, prec1, ziv_extra_bits;
+ bf_t B_s, *B = &B_s;
+
+ if (T->len == 0) {
+ return bf_set(r, T);
+ } else if (expn == 0) {
+ ret = bf_set(r, T);
+ ret |= bf_round(r, prec, flags);
+ return ret;
+ }
+
+ e = expn;
+ expn_sign = 0;
+ if (e < 0) {
+ e = -e;
+ expn_sign = 1;
+ }
+ bf_init(r->ctx, B);
+ if (prec == BF_PREC_INF) {
+ /* infinite precision: only used if the result is known to be exact */
+ ret = bf_pow_ui_ui(B, radix, e, BF_PREC_INF, BF_RNDN);
+ if (expn_sign) {
+ ret |= bf_div(r, T, B, T->len * LIMB_BITS, BF_RNDN);
+ } else {
+ ret |= bf_mul(r, T, B, BF_PREC_INF, BF_RNDN);
+ }
+ } else {
+ ziv_extra_bits = 16;
+ for(;;) {
+ prec1 = prec + ziv_extra_bits;
+ /* XXX: correct overflow/underflow handling */
+ /* XXX: rigorous error analysis needed */
+ extra_bits = ceil_log2(e) * 2 + 1;
+ ret = bf_pow_ui_ui(B, radix, e, prec1 + extra_bits, BF_RNDN | BF_FLAG_EXT_EXP);
+ overflow = !bf_is_finite(B);
+ /* XXX: if bf_pow_ui_ui returns an exact result, can stop
+ after the next operation */
+ if (expn_sign)
+ ret |= bf_div(r, T, B, prec1 + extra_bits, BF_RNDN | BF_FLAG_EXT_EXP);
+ else
+ ret |= bf_mul(r, T, B, prec1 + extra_bits, BF_RNDN | BF_FLAG_EXT_EXP);
+ if (ret & BF_ST_MEM_ERROR)
+ break;
+ if ((ret & BF_ST_INEXACT) &&
+ !bf_can_round(r, prec, flags & BF_RND_MASK, prec1) &&
+ !overflow) {
+ /* and more precision and retry */
+ ziv_extra_bits = ziv_extra_bits + (ziv_extra_bits / 2);
+ } else {
+ /* XXX: need to use __bf_round() to pass the inexact
+ flag for the subnormal case */
+ ret = bf_round(r, prec, flags) | (ret & BF_ST_INEXACT);
+ break;
+ }
+ }
+ }
+ bf_delete(B);
+ return ret;
+}
+
+static inline int to_digit(int c)
+{
+ if (c >= '0' && c <= '9')
+ return c - '0';
+ else if (c >= 'A' && c <= 'Z')
+ return c - 'A' + 10;
+ else if (c >= 'a' && c <= 'z')
+ return c - 'a' + 10;
+ else
+ return 36;
+}
+
+/* add a limb at 'pos' and decrement pos. new space is created if
+ needed. Return 0 if OK, -1 if memory error */
+static int bf_add_limb(bf_t *a, slimb_t *ppos, limb_t v)
+{
+ slimb_t pos;
+ pos = *ppos;
+ if (unlikely(pos < 0)) {
+ limb_t new_size, d, *new_tab;
+ new_size = bf_max(a->len + 1, a->len * 3 / 2);
+ new_tab = bf_realloc(a->ctx, a->tab, sizeof(limb_t) * new_size);
+ if (!new_tab)
+ return -1;
+ a->tab = new_tab;
+ d = new_size - a->len;
+ memmove(a->tab + d, a->tab, a->len * sizeof(limb_t));
+ a->len = new_size;
+ pos += d;
+ }
+ a->tab[pos--] = v;
+ *ppos = pos;
+ return 0;
+}
+
+static int bf_tolower(int c)
+{
+ if (c >= 'A' && c <= 'Z')
+ c = c - 'A' + 'a';
+ return c;
+}
+
+static int strcasestart(const char *str, const char *val, const char **ptr)
+{
+ const char *p, *q;
+ p = str;
+ q = val;
+ while (*q != '\0') {
+ if (bf_tolower(*p) != *q)
+ return 0;
+ p++;
+ q++;
+ }
+ if (ptr)
+ *ptr = p;
+ return 1;
+}
+
+static int bf_atof_internal(bf_t *r, slimb_t *pexponent,
+ const char *str, const char **pnext, int radix,
+ limb_t prec, bf_flags_t flags, BOOL is_dec)
+{
+ const char *p, *p_start;
+ int is_neg, radix_bits, exp_is_neg, ret, digits_per_limb, shift;
+ limb_t cur_limb;
+ slimb_t pos, expn, int_len, digit_count;
+ BOOL has_decpt, is_bin_exp;
+ bf_t a_s, *a;
+
+ *pexponent = 0;
+ p = str;
+ if (!(flags & BF_ATOF_NO_NAN_INF) && radix <= 16 &&
+ strcasestart(p, "nan", &p)) {
+ bf_set_nan(r);
+ ret = 0;
+ goto done;
+ }
+ is_neg = 0;
+
+ if (p[0] == '+') {
+ p++;
+ p_start = p;
+ } else if (p[0] == '-') {
+ is_neg = 1;
+ p++;
+ p_start = p;
+ } else {
+ p_start = p;
+ }
+ if (p[0] == '0') {
+ if ((p[1] == 'x' || p[1] == 'X') &&
+ (radix == 0 || radix == 16) &&
+ !(flags & BF_ATOF_NO_HEX)) {
+ radix = 16;
+ p += 2;
+ } else if ((p[1] == 'o' || p[1] == 'O') &&
+ radix == 0 && (flags & BF_ATOF_BIN_OCT)) {
+ p += 2;
+ radix = 8;
+ } else if ((p[1] == 'b' || p[1] == 'B') &&
+ radix == 0 && (flags & BF_ATOF_BIN_OCT)) {
+ p += 2;
+ radix = 2;
+ } else {
+ goto no_prefix;
+ }
+ /* there must be a digit after the prefix */
+ if (to_digit((uint8_t)*p) >= radix) {
+ bf_set_nan(r);
+ ret = 0;
+ goto done;
+ }
+ no_prefix: ;
+ } else {
+ if (!(flags & BF_ATOF_NO_NAN_INF) && radix <= 16 &&
+ strcasestart(p, "inf", &p)) {
+ bf_set_inf(r, is_neg);
+ ret = 0;
+ goto done;
+ }
+ }
+
+ if (radix == 0)
+ radix = 10;
+ if (is_dec) {
+ assert(radix == 10);
+ radix_bits = 0;
+ a = r;
+ } else if ((radix & (radix - 1)) != 0) {
+ radix_bits = 0; /* base is not a power of two */
+ a = &a_s;
+ bf_init(r->ctx, a);
+ } else {
+ radix_bits = ceil_log2(radix);
+ a = r;
+ }
+
+ /* skip leading zeros */
+ /* XXX: could also skip zeros after the decimal point */
+ while (*p == '0')
+ p++;
+
+ if (radix_bits) {
+ shift = digits_per_limb = LIMB_BITS;
+ } else {
+ radix_bits = 0;
+ shift = digits_per_limb = digits_per_limb_table[radix - 2];
+ }
+ cur_limb = 0;
+ bf_resize(a, 1);
+ pos = 0;
+ has_decpt = FALSE;
+ int_len = digit_count = 0;
+ for(;;) {
+ limb_t c;
+ if (*p == '.' && (p > p_start || to_digit(p[1]) < radix)) {
+ if (has_decpt)
+ break;
+ has_decpt = TRUE;
+ int_len = digit_count;
+ p++;
+ }
+ c = to_digit(*p);
+ if (c >= radix)
+ break;
+ digit_count++;
+ p++;
+ if (radix_bits) {
+ shift -= radix_bits;
+ if (shift <= 0) {
+ cur_limb |= c >> (-shift);
+ if (bf_add_limb(a, &pos, cur_limb))
+ goto mem_error;
+ if (shift < 0)
+ cur_limb = c << (LIMB_BITS + shift);
+ else
+ cur_limb = 0;
+ shift += LIMB_BITS;
+ } else {
+ cur_limb |= c << shift;
+ }
+ } else {
+ cur_limb = cur_limb * radix + c;
+ shift--;
+ if (shift == 0) {
+ if (bf_add_limb(a, &pos, cur_limb))
+ goto mem_error;
+ shift = digits_per_limb;
+ cur_limb = 0;
+ }
+ }
+ }
+ if (!has_decpt)
+ int_len = digit_count;
+
+ /* add the last limb and pad with zeros */
+ if (shift != digits_per_limb) {
+ if (radix_bits == 0) {
+ while (shift != 0) {
+ cur_limb *= radix;
+ shift--;
+ }
+ }
+ if (bf_add_limb(a, &pos, cur_limb)) {
+ mem_error:
+ ret = BF_ST_MEM_ERROR;
+ if (!radix_bits)
+ bf_delete(a);
+ bf_set_nan(r);
+ goto done;
+ }
+ }
+
+ /* reset the next limbs to zero (we prefer to reallocate in the
+ renormalization) */
+ memset(a->tab, 0, (pos + 1) * sizeof(limb_t));
+
+ if (p == p_start) {
+ ret = 0;
+ if (!radix_bits)
+ bf_delete(a);
+ bf_set_nan(r);
+ goto done;
+ }
+
+ /* parse the exponent, if any */
+ expn = 0;
+ is_bin_exp = FALSE;
+ if (((radix == 10 && (*p == 'e' || *p == 'E')) ||
+ (radix != 10 && (*p == '@' ||
+ (radix_bits && (*p == 'p' || *p == 'P'))))) &&
+ p > p_start) {
+ is_bin_exp = (*p == 'p' || *p == 'P');
+ p++;
+ exp_is_neg = 0;
+ if (*p == '+') {
+ p++;
+ } else if (*p == '-') {
+ exp_is_neg = 1;
+ p++;
+ }
+ for(;;) {
+ int c;
+ c = to_digit(*p);
+ if (c >= 10)
+ break;
+ if (unlikely(expn > ((BF_RAW_EXP_MAX - 2 - 9) / 10))) {
+ /* exponent overflow */
+ if (exp_is_neg) {
+ bf_set_zero(r, is_neg);
+ ret = BF_ST_UNDERFLOW | BF_ST_INEXACT;
+ } else {
+ bf_set_inf(r, is_neg);
+ ret = BF_ST_OVERFLOW | BF_ST_INEXACT;
+ }
+ goto done;
+ }
+ p++;
+ expn = expn * 10 + c;
+ }
+ if (exp_is_neg)
+ expn = -expn;
+ }
+ if (is_dec) {
+ a->expn = expn + int_len;
+ a->sign = is_neg;
+ ret = bfdec_normalize_and_round((bfdec_t *)a, prec, flags);
+ } else if (radix_bits) {
+ /* XXX: may overflow */
+ if (!is_bin_exp)
+ expn *= radix_bits;
+ a->expn = expn + (int_len * radix_bits);
+ a->sign = is_neg;
+ ret = bf_normalize_and_round(a, prec, flags);
+ } else {
+ limb_t l;
+ pos++;
+ l = a->len - pos; /* number of limbs */
+ if (l == 0) {
+ bf_set_zero(r, is_neg);
+ ret = 0;
+ } else {
+ bf_t T_s, *T = &T_s;
+
+ expn -= l * digits_per_limb - int_len;
+ bf_init(r->ctx, T);
+ if (bf_integer_from_radix(T, a->tab + pos, l, radix)) {
+ bf_set_nan(r);
+ ret = BF_ST_MEM_ERROR;
+ } else {
+ T->sign = is_neg;
+ if (flags & BF_ATOF_EXPONENT) {
+ /* return the exponent */
+ *pexponent = expn;
+ ret = bf_set(r, T);
+ } else {
+ ret = bf_mul_pow_radix(r, T, radix, expn, prec, flags);
+ }
+ }
+ bf_delete(T);
+ }
+ bf_delete(a);
+ }
+ done:
+ if (pnext)
+ *pnext = p;
+ return ret;
+}
+
+/*
+ Return (status, n, exp). 'status' is the floating point status. 'n'
+ is the parsed number.
+
+ If (flags & BF_ATOF_EXPONENT) and if the radix is not a power of
+ two, the parsed number is equal to r *
+ (*pexponent)^radix. Otherwise *pexponent = 0.
+*/
+int bf_atof2(bf_t *r, slimb_t *pexponent,
+ const char *str, const char **pnext, int radix,
+ limb_t prec, bf_flags_t flags)
+{
+ return bf_atof_internal(r, pexponent, str, pnext, radix, prec, flags,
+ FALSE);
+}
+
+int bf_atof(bf_t *r, const char *str, const char **pnext, int radix,
+ limb_t prec, bf_flags_t flags)
+{
+ slimb_t dummy_exp;
+ return bf_atof_internal(r, &dummy_exp, str, pnext, radix, prec, flags, FALSE);
+}
+
+/* base conversion to radix */
+
+#if LIMB_BITS == 64
+#define RADIXL_10 UINT64_C(10000000000000000000)
+#else
+#define RADIXL_10 UINT64_C(1000000000)
+#endif
+
+static const uint32_t inv_log2_radix[BF_RADIX_MAX - 1][LIMB_BITS / 32 + 1] = {
+#if LIMB_BITS == 32
+{ 0x80000000, 0x00000000,},
+{ 0x50c24e60, 0xd4d4f4a7,},
+{ 0x40000000, 0x00000000,},
+{ 0x372068d2, 0x0a1ee5ca,},
+{ 0x3184648d, 0xb8153e7a,},
+{ 0x2d983275, 0x9d5369c4,},
+{ 0x2aaaaaaa, 0xaaaaaaab,},
+{ 0x28612730, 0x6a6a7a54,},
+{ 0x268826a1, 0x3ef3fde6,},
+{ 0x25001383, 0xbac8a744,},
+{ 0x23b46706, 0x82c0c709,},
+{ 0x229729f1, 0xb2c83ded,},
+{ 0x219e7ffd, 0xa5ad572b,},
+{ 0x20c33b88, 0xda7c29ab,},
+{ 0x20000000, 0x00000000,},
+{ 0x1f50b57e, 0xac5884b3,},
+{ 0x1eb22cc6, 0x8aa6e26f,},
+{ 0x1e21e118, 0x0c5daab2,},
+{ 0x1d9dcd21, 0x439834e4,},
+{ 0x1d244c78, 0x367a0d65,},
+{ 0x1cb40589, 0xac173e0c,},
+{ 0x1c4bd95b, 0xa8d72b0d,},
+{ 0x1bead768, 0x98f8ce4c,},
+{ 0x1b903469, 0x050f72e5,},
+{ 0x1b3b433f, 0x2eb06f15,},
+{ 0x1aeb6f75, 0x9c46fc38,},
+{ 0x1aa038eb, 0x0e3bfd17,},
+{ 0x1a593062, 0xb38d8c56,},
+{ 0x1a15f4c3, 0x2b95a2e6,},
+{ 0x19d630dc, 0xcc7ddef9,},
+{ 0x19999999, 0x9999999a,},
+{ 0x195fec80, 0x8a609431,},
+{ 0x1928ee7b, 0x0b4f22f9,},
+{ 0x18f46acf, 0x8c06e318,},
+{ 0x18c23246, 0xdc0a9f3d,},
+#else
+{ 0x80000000, 0x00000000, 0x00000000,},
+{ 0x50c24e60, 0xd4d4f4a7, 0x021f57bc,},
+{ 0x40000000, 0x00000000, 0x00000000,},
+{ 0x372068d2, 0x0a1ee5ca, 0x19ea911b,},
+{ 0x3184648d, 0xb8153e7a, 0x7fc2d2e1,},
+{ 0x2d983275, 0x9d5369c4, 0x4dec1661,},
+{ 0x2aaaaaaa, 0xaaaaaaaa, 0xaaaaaaab,},
+{ 0x28612730, 0x6a6a7a53, 0x810fabde,},
+{ 0x268826a1, 0x3ef3fde6, 0x23e2566b,},
+{ 0x25001383, 0xbac8a744, 0x385a3349,},
+{ 0x23b46706, 0x82c0c709, 0x3f891718,},
+{ 0x229729f1, 0xb2c83ded, 0x15fba800,},
+{ 0x219e7ffd, 0xa5ad572a, 0xe169744b,},
+{ 0x20c33b88, 0xda7c29aa, 0x9bddee52,},
+{ 0x20000000, 0x00000000, 0x00000000,},
+{ 0x1f50b57e, 0xac5884b3, 0x70e28eee,},
+{ 0x1eb22cc6, 0x8aa6e26f, 0x06d1a2a2,},
+{ 0x1e21e118, 0x0c5daab1, 0x81b4f4bf,},
+{ 0x1d9dcd21, 0x439834e3, 0x81667575,},
+{ 0x1d244c78, 0x367a0d64, 0xc8204d6d,},
+{ 0x1cb40589, 0xac173e0c, 0x3b7b16ba,},
+{ 0x1c4bd95b, 0xa8d72b0d, 0x5879f25a,},
+{ 0x1bead768, 0x98f8ce4c, 0x66cc2858,},
+{ 0x1b903469, 0x050f72e5, 0x0cf5488e,},
+{ 0x1b3b433f, 0x2eb06f14, 0x8c89719c,},
+{ 0x1aeb6f75, 0x9c46fc37, 0xab5fc7e9,},
+{ 0x1aa038eb, 0x0e3bfd17, 0x1bd62080,},
+{ 0x1a593062, 0xb38d8c56, 0x7998ab45,},
+{ 0x1a15f4c3, 0x2b95a2e6, 0x46aed6a0,},
+{ 0x19d630dc, 0xcc7ddef9, 0x5aadd61b,},
+{ 0x19999999, 0x99999999, 0x9999999a,},
+{ 0x195fec80, 0x8a609430, 0xe1106014,},
+{ 0x1928ee7b, 0x0b4f22f9, 0x5f69791d,},
+{ 0x18f46acf, 0x8c06e318, 0x4d2aeb2c,},
+{ 0x18c23246, 0xdc0a9f3d, 0x3fe16970,},
+#endif
+};
+
+static const limb_t log2_radix[BF_RADIX_MAX - 1] = {
+#if LIMB_BITS == 32
+0x20000000,
+0x32b80347,
+0x40000000,
+0x4a4d3c26,
+0x52b80347,
+0x59d5d9fd,
+0x60000000,
+0x6570068e,
+0x6a4d3c26,
+0x6eb3a9f0,
+0x72b80347,
+0x766a008e,
+0x79d5d9fd,
+0x7d053f6d,
+0x80000000,
+0x82cc7edf,
+0x8570068e,
+0x87ef05ae,
+0x8a4d3c26,
+0x8c8ddd45,
+0x8eb3a9f0,
+0x90c10501,
+0x92b80347,
+0x949a784c,
+0x966a008e,
+0x982809d6,
+0x99d5d9fd,
+0x9b74948f,
+0x9d053f6d,
+0x9e88c6b3,
+0xa0000000,
+0xa16bad37,
+0xa2cc7edf,
+0xa4231623,
+0xa570068e,
+#else
+0x2000000000000000,
+0x32b803473f7ad0f4,
+0x4000000000000000,
+0x4a4d3c25e68dc57f,
+0x52b803473f7ad0f4,
+0x59d5d9fd5010b366,
+0x6000000000000000,
+0x6570068e7ef5a1e8,
+0x6a4d3c25e68dc57f,
+0x6eb3a9f01975077f,
+0x72b803473f7ad0f4,
+0x766a008e4788cbcd,
+0x79d5d9fd5010b366,
+0x7d053f6d26089673,
+0x8000000000000000,
+0x82cc7edf592262d0,
+0x8570068e7ef5a1e8,
+0x87ef05ae409a0289,
+0x8a4d3c25e68dc57f,
+0x8c8ddd448f8b845a,
+0x8eb3a9f01975077f,
+0x90c10500d63aa659,
+0x92b803473f7ad0f4,
+0x949a784bcd1b8afe,
+0x966a008e4788cbcd,
+0x982809d5be7072dc,
+0x99d5d9fd5010b366,
+0x9b74948f5532da4b,
+0x9d053f6d26089673,
+0x9e88c6b3626a72aa,
+0xa000000000000000,
+0xa16bad3758efd873,
+0xa2cc7edf592262d0,
+0xa4231623369e78e6,
+0xa570068e7ef5a1e8,
+#endif
+};
+
+/* compute floor(a*b) or ceil(a*b) with b = log2(radix) or
+ b=1/log2(radix). For is_inv = 0, strict accuracy is not guaranteed
+ when radix is not a power of two. */
+slimb_t bf_mul_log2_radix(slimb_t a1, unsigned int radix, int is_inv,
+ int is_ceil1)
+{
+ int is_neg;
+ limb_t a;
+ BOOL is_ceil;
+
+ is_ceil = is_ceil1;
+ a = a1;
+ if (a1 < 0) {
+ a = -a;
+ is_neg = 1;
+ } else {
+ is_neg = 0;
+ }
+ is_ceil ^= is_neg;
+ if ((radix & (radix - 1)) == 0) {
+ int radix_bits;
+ /* radix is a power of two */
+ radix_bits = ceil_log2(radix);
+ if (is_inv) {
+ if (is_ceil)
+ a += radix_bits - 1;
+ a = a / radix_bits;
+ } else {
+ a = a * radix_bits;
+ }
+ } else {
+ const uint32_t *tab;
+ limb_t b0, b1;
+ dlimb_t t;
+
+ if (is_inv) {
+ tab = inv_log2_radix[radix - 2];
+#if LIMB_BITS == 32
+ b1 = tab[0];
+ b0 = tab[1];
+#else
+ b1 = ((limb_t)tab[0] << 32) | tab[1];
+ b0 = (limb_t)tab[2] << 32;
+#endif
+ t = (dlimb_t)b0 * (dlimb_t)a;
+ t = (dlimb_t)b1 * (dlimb_t)a + (t >> LIMB_BITS);
+ a = t >> (LIMB_BITS - 1);
+ } else {
+ b0 = log2_radix[radix - 2];
+ t = (dlimb_t)b0 * (dlimb_t)a;
+ a = t >> (LIMB_BITS - 3);
+ }
+ /* a = floor(result) and 'result' cannot be an integer */
+ a += is_ceil;
+ }
+ if (is_neg)
+ a = -a;
+ return a;
+}
+
+/* 'n' is the number of output limbs */
+static int bf_integer_to_radix_rec(bf_t *pow_tab,
+ limb_t *out, const bf_t *a, limb_t n,
+ int level, limb_t n0, limb_t radixl,
+ unsigned int radixl_bits)
+{
+ limb_t n1, n2, q_prec;
+ int ret;
+
+ assert(n >= 1);
+ if (n == 1) {
+ out[0] = get_bits(a->tab, a->len, a->len * LIMB_BITS - a->expn);
+ } else if (n == 2) {
+ dlimb_t t;
+ slimb_t pos;
+ pos = a->len * LIMB_BITS - a->expn;
+ t = ((dlimb_t)get_bits(a->tab, a->len, pos + LIMB_BITS) << LIMB_BITS) |
+ get_bits(a->tab, a->len, pos);
+ if (likely(radixl == RADIXL_10)) {
+ /* use division by a constant when possible */
+ out[0] = t % RADIXL_10;
+ out[1] = t / RADIXL_10;
+ } else {
+ out[0] = t % radixl;
+ out[1] = t / radixl;
+ }
+ } else {
+ bf_t Q, R, *B, *B_inv;
+ int q_add;
+ bf_init(a->ctx, &Q);
+ bf_init(a->ctx, &R);
+ n2 = (((n0 * 2) >> (level + 1)) + 1) / 2;
+ n1 = n - n2;
+ B = &pow_tab[2 * level];
+ B_inv = &pow_tab[2 * level + 1];
+ ret = 0;
+ if (B->len == 0) {
+ /* compute BASE^n2 */
+ ret |= bf_pow_ui_ui(B, radixl, n2, BF_PREC_INF, BF_RNDZ);
+ /* we use enough bits for the maximum possible 'n1' value,
+ i.e. n2 + 1 */
+ ret |= bf_set_ui(&R, 1);
+ ret |= bf_div(B_inv, &R, B, (n2 + 1) * radixl_bits + 2, BF_RNDN);
+ }
+ // printf("%d: n1=% " PRId64 " n2=%" PRId64 "\n", level, n1, n2);
+ q_prec = n1 * radixl_bits;
+ ret |= bf_mul(&Q, a, B_inv, q_prec, BF_RNDN);
+ ret |= bf_rint(&Q, BF_RNDZ);
+
+ ret |= bf_mul(&R, &Q, B, BF_PREC_INF, BF_RNDZ);
+ ret |= bf_sub(&R, a, &R, BF_PREC_INF, BF_RNDZ);
+
+ if (ret & BF_ST_MEM_ERROR)
+ goto fail;
+ /* adjust if necessary */
+ q_add = 0;
+ while (R.sign && R.len != 0) {
+ if (bf_add(&R, &R, B, BF_PREC_INF, BF_RNDZ))
+ goto fail;
+ q_add--;
+ }
+ while (bf_cmpu(&R, B) >= 0) {
+ if (bf_sub(&R, &R, B, BF_PREC_INF, BF_RNDZ))
+ goto fail;
+ q_add++;
+ }
+ if (q_add != 0) {
+ if (bf_add_si(&Q, &Q, q_add, BF_PREC_INF, BF_RNDZ))
+ goto fail;
+ }
+ if (bf_integer_to_radix_rec(pow_tab, out + n2, &Q, n1, level + 1, n0,
+ radixl, radixl_bits))
+ goto fail;
+ if (bf_integer_to_radix_rec(pow_tab, out, &R, n2, level + 1, n0,
+ radixl, radixl_bits)) {
+ fail:
+ bf_delete(&Q);
+ bf_delete(&R);
+ return -1;
+ }
+ bf_delete(&Q);
+ bf_delete(&R);
+ }
+ return 0;
+}
+
+/* return 0 if OK != 0 if memory error */
+static int bf_integer_to_radix(bf_t *r, const bf_t *a, limb_t radixl)
+{
+ bf_context_t *s = r->ctx;
+ limb_t r_len;
+ bf_t *pow_tab;
+ int i, pow_tab_len, ret;
+
+ r_len = r->len;
+ pow_tab_len = (ceil_log2(r_len) + 2) * 2; /* XXX: check */
+ pow_tab = bf_malloc(s, sizeof(pow_tab[0]) * pow_tab_len);
+ if (!pow_tab)
+ return -1;
+ for(i = 0; i < pow_tab_len; i++)
+ bf_init(r->ctx, &pow_tab[i]);
+
+ ret = bf_integer_to_radix_rec(pow_tab, r->tab, a, r_len, 0, r_len, radixl,
+ ceil_log2(radixl));
+
+ for(i = 0; i < pow_tab_len; i++) {
+ bf_delete(&pow_tab[i]);
+ }
+ bf_free(s, pow_tab);
+ return ret;
+}
+
+/* a must be >= 0. 'P' is the wanted number of digits in radix
+ 'radix'. 'r' is the mantissa represented as an integer. *pE
+ contains the exponent. Return != 0 if memory error. */
+static int bf_convert_to_radix(bf_t *r, slimb_t *pE,
+ const bf_t *a, int radix,
+ limb_t P, bf_rnd_t rnd_mode,
+ BOOL is_fixed_exponent)
+{
+ slimb_t E, e, prec, extra_bits, ziv_extra_bits, prec0;
+ bf_t B_s, *B = &B_s;
+ int e_sign, ret, res;
+
+ if (a->len == 0) {
+ /* zero case */
+ *pE = 0;
+ return bf_set(r, a);
+ }
+
+ if (is_fixed_exponent) {
+ E = *pE;
+ } else {
+ /* compute the new exponent */
+ E = 1 + bf_mul_log2_radix(a->expn - 1, radix, TRUE, FALSE);
+ }
+ // bf_print_str("a", a);
+ // printf("E=%ld P=%ld radix=%d\n", E, P, radix);
+
+ for(;;) {
+ e = P - E;
+ e_sign = 0;
+ if (e < 0) {
+ e = -e;
+ e_sign = 1;
+ }
+ /* Note: precision for log2(radix) is not critical here */
+ prec0 = bf_mul_log2_radix(P, radix, FALSE, TRUE);
+ ziv_extra_bits = 16;
+ for(;;) {
+ prec = prec0 + ziv_extra_bits;
+ /* XXX: rigorous error analysis needed */
+ extra_bits = ceil_log2(e) * 2 + 1;
+ ret = bf_pow_ui_ui(r, radix, e, prec + extra_bits,
+ BF_RNDN | BF_FLAG_EXT_EXP);
+ if (!e_sign)
+ ret |= bf_mul(r, r, a, prec + extra_bits,
+ BF_RNDN | BF_FLAG_EXT_EXP);
+ else
+ ret |= bf_div(r, a, r, prec + extra_bits,
+ BF_RNDN | BF_FLAG_EXT_EXP);
+ if (ret & BF_ST_MEM_ERROR)
+ return BF_ST_MEM_ERROR;
+ /* if the result is not exact, check that it can be safely
+ rounded to an integer */
+ if ((ret & BF_ST_INEXACT) &&
+ !bf_can_round(r, r->expn, rnd_mode, prec)) {
+ /* and more precision and retry */
+ ziv_extra_bits = ziv_extra_bits + (ziv_extra_bits / 2);
+ continue;
+ } else {
+ ret = bf_rint(r, rnd_mode);
+ if (ret & BF_ST_MEM_ERROR)
+ return BF_ST_MEM_ERROR;
+ break;
+ }
+ }
+ if (is_fixed_exponent)
+ break;
+ /* check that the result is < B^P */
+ /* XXX: do a fast approximate test first ? */
+ bf_init(r->ctx, B);
+ ret = bf_pow_ui_ui(B, radix, P, BF_PREC_INF, BF_RNDZ);
+ if (ret) {
+ bf_delete(B);
+ return ret;
+ }
+ res = bf_cmpu(r, B);
+ bf_delete(B);
+ if (res < 0)
+ break;
+ /* try a larger exponent */
+ E++;
+ }
+ *pE = E;
+ return 0;
+}
+
+static void limb_to_a(char *buf, limb_t n, unsigned int radix, int len)
+{
+ int digit, i;
+
+ if (radix == 10) {
+ /* specific case with constant divisor */
+ for(i = len - 1; i >= 0; i--) {
+ digit = (limb_t)n % 10;
+ n = (limb_t)n / 10;
+ buf[i] = digit + '0';
+ }
+ } else {
+ for(i = len - 1; i >= 0; i--) {
+ digit = (limb_t)n % radix;
+ n = (limb_t)n / radix;
+ if (digit < 10)
+ digit += '0';
+ else
+ digit += 'a' - 10;
+ buf[i] = digit;
+ }
+ }
+}
+
+/* for power of 2 radixes */
+static void limb_to_a2(char *buf, limb_t n, unsigned int radix_bits, int len)
+{
+ int digit, i;
+ unsigned int mask;
+
+ mask = (1 << radix_bits) - 1;
+ for(i = len - 1; i >= 0; i--) {
+ digit = n & mask;
+ n >>= radix_bits;
+ if (digit < 10)
+ digit += '0';
+ else
+ digit += 'a' - 10;
+ buf[i] = digit;
+ }
+}
+
+/* 'a' must be an integer if the is_dec = FALSE or if the radix is not
+ a power of two. A dot is added before the 'dot_pos' digit. dot_pos
+ = n_digits does not display the dot. 0 <= dot_pos <=
+ n_digits. n_digits >= 1. */
+static void output_digits(DynBuf *s, const bf_t *a1, int radix, limb_t n_digits,
+ limb_t dot_pos, BOOL is_dec)
+{
+ limb_t i, v, l;
+ slimb_t pos, pos_incr;
+ int digits_per_limb, buf_pos, radix_bits, first_buf_pos;
+ char buf[65];
+ bf_t a_s, *a;
+
+ if (is_dec) {
+ digits_per_limb = LIMB_DIGITS;
+ a = (bf_t *)a1;
+ radix_bits = 0;
+ pos = a->len;
+ pos_incr = 1;
+ first_buf_pos = 0;
+ } else if ((radix & (radix - 1)) == 0) {
+ a = (bf_t *)a1;
+ radix_bits = ceil_log2(radix);
+ digits_per_limb = LIMB_BITS / radix_bits;
+ pos_incr = digits_per_limb * radix_bits;
+ /* digits are aligned relative to the radix point */
+ pos = a->len * LIMB_BITS + smod(-a->expn, radix_bits);
+ first_buf_pos = 0;
+ } else {
+ limb_t n, radixl;
+
+ digits_per_limb = digits_per_limb_table[radix - 2];
+ radixl = get_limb_radix(radix);
+ a = &a_s;
+ bf_init(a1->ctx, a);
+ n = (n_digits + digits_per_limb - 1) / digits_per_limb;
+ if (bf_resize(a, n)) {
+ dbuf_set_error(s);
+ goto done;
+ }
+ if (bf_integer_to_radix(a, a1, radixl)) {
+ dbuf_set_error(s);
+ goto done;
+ }
+ radix_bits = 0;
+ pos = n;
+ pos_incr = 1;
+ first_buf_pos = pos * digits_per_limb - n_digits;
+ }
+ buf_pos = digits_per_limb;
+ i = 0;
+ while (i < n_digits) {
+ if (buf_pos == digits_per_limb) {
+ pos -= pos_incr;
+ if (radix_bits == 0) {
+ v = get_limbz(a, pos);
+ limb_to_a(buf, v, radix, digits_per_limb);
+ } else {
+ v = get_bits(a->tab, a->len, pos);
+ limb_to_a2(buf, v, radix_bits, digits_per_limb);
+ }
+ buf_pos = first_buf_pos;
+ first_buf_pos = 0;
+ }
+ if (i < dot_pos) {
+ l = dot_pos;
+ } else {
+ if (i == dot_pos)
+ dbuf_putc(s, '.');
+ l = n_digits;
+ }
+ l = bf_min(digits_per_limb - buf_pos, l - i);
+ dbuf_put(s, (uint8_t *)(buf + buf_pos), l);
+ buf_pos += l;
+ i += l;
+ }
+ done:
+ if (a != a1)
+ bf_delete(a);
+}
+
+static void *bf_dbuf_realloc(void *opaque, void *ptr, size_t size)
+{
+ bf_context_t *s = opaque;
+ return bf_realloc(s, ptr, size);
+}
+
+/* return the length in bytes. A trailing '\0' is added */
+static char *bf_ftoa_internal(size_t *plen, const bf_t *a2, int radix,
+ limb_t prec, bf_flags_t flags, BOOL is_dec)
+{
+ bf_context_t *ctx = a2->ctx;
+ DynBuf s_s, *s = &s_s;
+ int radix_bits;
+
+ // bf_print_str("ftoa", a2);
+ // printf("radix=%d\n", radix);
+ dbuf_init2(s, ctx, bf_dbuf_realloc);
+ if (a2->expn == BF_EXP_NAN) {
+ dbuf_putstr(s, "NaN");
+ } else {
+ if (a2->sign)
+ dbuf_putc(s, '-');
+ if (a2->expn == BF_EXP_INF) {
+ if (flags & BF_FTOA_JS_QUIRKS)
+ dbuf_putstr(s, "Infinity");
+ else
+ dbuf_putstr(s, "Inf");
+ } else {
+ int fmt, ret;
+ slimb_t n_digits, n, i, n_max, n1;
+ bf_t a1_s, *a1 = &a1_s;
+
+ if ((radix & (radix - 1)) != 0)
+ radix_bits = 0;
+ else
+ radix_bits = ceil_log2(radix);
+
+ fmt = flags & BF_FTOA_FORMAT_MASK;
+ bf_init(ctx, a1);
+ if (fmt == BF_FTOA_FORMAT_FRAC) {
+ if (is_dec || radix_bits != 0) {
+ if (bf_set(a1, a2))
+ goto fail1;
+#ifdef USE_BF_DEC
+ if (is_dec) {
+ if (bfdec_round((bfdec_t *)a1, prec, (flags & BF_RND_MASK) | BF_FLAG_RADPNT_PREC) & BF_ST_MEM_ERROR)
+ goto fail1;
+ n = a1->expn;
+ } else
+#endif
+ {
+ if (bf_round(a1, prec * radix_bits, (flags & BF_RND_MASK) | BF_FLAG_RADPNT_PREC) & BF_ST_MEM_ERROR)
+ goto fail1;
+ n = ceil_div(a1->expn, radix_bits);
+ }
+ if (flags & BF_FTOA_ADD_PREFIX) {
+ if (radix == 16)
+ dbuf_putstr(s, "0x");
+ else if (radix == 8)
+ dbuf_putstr(s, "0o");
+ else if (radix == 2)
+ dbuf_putstr(s, "0b");
+ }
+ if (a1->expn == BF_EXP_ZERO) {
+ dbuf_putstr(s, "0");
+ if (prec > 0) {
+ dbuf_putstr(s, ".");
+ for(i = 0; i < prec; i++) {
+ dbuf_putc(s, '0');
+ }
+ }
+ } else {
+ n_digits = prec + n;
+ if (n <= 0) {
+ /* 0.x */
+ dbuf_putstr(s, "0.");
+ for(i = 0; i < -n; i++) {
+ dbuf_putc(s, '0');
+ }
+ if (n_digits > 0) {
+ output_digits(s, a1, radix, n_digits, n_digits, is_dec);
+ }
+ } else {
+ output_digits(s, a1, radix, n_digits, n, is_dec);
+ }
+ }
+ } else {
+ size_t pos, start;
+ bf_t a_s, *a = &a_s;
+
+ /* make a positive number */
+ a->tab = a2->tab;
+ a->len = a2->len;
+ a->expn = a2->expn;
+ a->sign = 0;
+
+ /* one more digit for the rounding */
+ n = 1 + bf_mul_log2_radix(bf_max(a->expn, 0), radix, TRUE, TRUE);
+ n_digits = n + prec;
+ n1 = n;
+ if (bf_convert_to_radix(a1, &n1, a, radix, n_digits,
+ flags & BF_RND_MASK, TRUE))
+ goto fail1;
+ start = s->size;
+ output_digits(s, a1, radix, n_digits, n, is_dec);
+ /* remove leading zeros because we allocated one more digit */
+ pos = start;
+ while ((pos + 1) < s->size && s->buf[pos] == '0' &&
+ s->buf[pos + 1] != '.')
+ pos++;
+ if (pos > start) {
+ memmove(s->buf + start, s->buf + pos, s->size - pos);
+ s->size -= (pos - start);
+ }
+ }
+ } else {
+#ifdef USE_BF_DEC
+ if (is_dec) {
+ if (bf_set(a1, a2))
+ goto fail1;
+ if (fmt == BF_FTOA_FORMAT_FIXED) {
+ n_digits = prec;
+ n_max = n_digits;
+ if (bfdec_round((bfdec_t *)a1, prec, (flags & BF_RND_MASK)) & BF_ST_MEM_ERROR)
+ goto fail1;
+ } else {
+ /* prec is ignored */
+ prec = n_digits = a1->len * LIMB_DIGITS;
+ /* remove the trailing zero digits */
+ while (n_digits > 1 &&
+ get_digit(a1->tab, a1->len, prec - n_digits) == 0) {
+ n_digits--;
+ }
+ n_max = n_digits + 4;
+ }
+ n = a1->expn;
+ } else
+#endif
+ if (radix_bits != 0) {
+ if (bf_set(a1, a2))
+ goto fail1;
+ if (fmt == BF_FTOA_FORMAT_FIXED) {
+ slimb_t prec_bits;
+ n_digits = prec;
+ n_max = n_digits;
+ /* align to the radix point */
+ prec_bits = prec * radix_bits -
+ smod(-a1->expn, radix_bits);
+ if (bf_round(a1, prec_bits,
+ (flags & BF_RND_MASK)) & BF_ST_MEM_ERROR)
+ goto fail1;
+ } else {
+ limb_t digit_mask;
+ slimb_t pos;
+ /* position of the digit before the most
+ significant digit in bits */
+ pos = a1->len * LIMB_BITS +
+ smod(-a1->expn, radix_bits);
+ n_digits = ceil_div(pos, radix_bits);
+ /* remove the trailing zero digits */
+ digit_mask = ((limb_t)1 << radix_bits) - 1;
+ while (n_digits > 1 &&
+ (get_bits(a1->tab, a1->len, pos - n_digits * radix_bits) & digit_mask) == 0) {
+ n_digits--;
+ }
+ n_max = n_digits + 4;
+ }
+ n = ceil_div(a1->expn, radix_bits);
+ } else {
+ bf_t a_s, *a = &a_s;
+
+ /* make a positive number */
+ a->tab = a2->tab;
+ a->len = a2->len;
+ a->expn = a2->expn;
+ a->sign = 0;
+
+ if (fmt == BF_FTOA_FORMAT_FIXED) {
+ n_digits = prec;
+ n_max = n_digits;
+ } else {
+ slimb_t n_digits_max, n_digits_min;
+
+ assert(prec != BF_PREC_INF);
+ n_digits = 1 + bf_mul_log2_radix(prec, radix, TRUE, TRUE);
+ /* max number of digits for non exponential
+ notation. The rational is to have the same rule
+ as JS i.e. n_max = 21 for 64 bit float in base 10. */
+ n_max = n_digits + 4;
+ if (fmt == BF_FTOA_FORMAT_FREE_MIN) {
+ bf_t b_s, *b = &b_s;
+
+ /* find the minimum number of digits by
+ dichotomy. */
+ /* XXX: inefficient */
+ n_digits_max = n_digits;
+ n_digits_min = 1;
+ bf_init(ctx, b);
+ while (n_digits_min < n_digits_max) {
+ n_digits = (n_digits_min + n_digits_max) / 2;
+ if (bf_convert_to_radix(a1, &n, a, radix, n_digits,
+ flags & BF_RND_MASK, FALSE)) {
+ bf_delete(b);
+ goto fail1;
+ }
+ /* convert back to a number and compare */
+ ret = bf_mul_pow_radix(b, a1, radix, n - n_digits,
+ prec,
+ (flags & ~BF_RND_MASK) |
+ BF_RNDN);
+ if (ret & BF_ST_MEM_ERROR) {
+ bf_delete(b);
+ goto fail1;
+ }
+ if (bf_cmpu(b, a) == 0) {
+ n_digits_max = n_digits;
+ } else {
+ n_digits_min = n_digits + 1;
+ }
+ }
+ bf_delete(b);
+ n_digits = n_digits_max;
+ }
+ }
+ if (bf_convert_to_radix(a1, &n, a, radix, n_digits,
+ flags & BF_RND_MASK, FALSE)) {
+ fail1:
+ bf_delete(a1);
+ goto fail;
+ }
+ }
+ if (a1->expn == BF_EXP_ZERO &&
+ fmt != BF_FTOA_FORMAT_FIXED &&
+ !(flags & BF_FTOA_FORCE_EXP)) {
+ /* just output zero */
+ dbuf_putstr(s, "0");
+ } else {
+ if (flags & BF_FTOA_ADD_PREFIX) {
+ if (radix == 16)
+ dbuf_putstr(s, "0x");
+ else if (radix == 8)
+ dbuf_putstr(s, "0o");
+ else if (radix == 2)
+ dbuf_putstr(s, "0b");
+ }
+ if (a1->expn == BF_EXP_ZERO)
+ n = 1;
+ if ((flags & BF_FTOA_FORCE_EXP) ||
+ n <= -6 || n > n_max) {
+ const char *fmt;
+ /* exponential notation */
+ output_digits(s, a1, radix, n_digits, 1, is_dec);
+ if (radix_bits != 0 && radix <= 16) {
+ if (flags & BF_FTOA_JS_QUIRKS)
+ fmt = "p%+" PRId_LIMB;
+ else
+ fmt = "p%" PRId_LIMB;
+ dbuf_printf(s, fmt, (n - 1) * radix_bits);
+ } else {
+ if (flags & BF_FTOA_JS_QUIRKS)
+ fmt = "%c%+" PRId_LIMB;
+ else
+ fmt = "%c%" PRId_LIMB;
+ dbuf_printf(s, fmt,
+ radix <= 10 ? 'e' : '@', n - 1);
+ }
+ } else if (n <= 0) {
+ /* 0.x */
+ dbuf_putstr(s, "0.");
+ for(i = 0; i < -n; i++) {
+ dbuf_putc(s, '0');
+ }
+ output_digits(s, a1, radix, n_digits, n_digits, is_dec);
+ } else {
+ if (n_digits <= n) {
+ /* no dot */
+ output_digits(s, a1, radix, n_digits, n_digits, is_dec);
+ for(i = 0; i < (n - n_digits); i++)
+ dbuf_putc(s, '0');
+ } else {
+ output_digits(s, a1, radix, n_digits, n, is_dec);
+ }
+ }
+ }
+ }
+ bf_delete(a1);
+ }
+ }
+ dbuf_putc(s, '\0');
+ if (dbuf_error(s))
+ goto fail;
+ if (plen)
+ *plen = s->size - 1;
+ return (char *)s->buf;
+ fail:
+ bf_free(ctx, s->buf);
+ if (plen)
+ *plen = 0;
+ return NULL;
+}
+
+char *bf_ftoa(size_t *plen, const bf_t *a, int radix, limb_t prec,
+ bf_flags_t flags)
+{
+ return bf_ftoa_internal(plen, a, radix, prec, flags, FALSE);
+}
+
+/***************************************************************/
+/* transcendental functions */
+
+/* Note: the algorithm is from MPFR */
+static void bf_const_log2_rec(bf_t *T, bf_t *P, bf_t *Q, limb_t n1,
+ limb_t n2, BOOL need_P)
+{
+ bf_context_t *s = T->ctx;
+ if ((n2 - n1) == 1) {
+ if (n1 == 0) {
+ bf_set_ui(P, 3);
+ } else {
+ bf_set_ui(P, n1);
+ P->sign = 1;
+ }
+ bf_set_ui(Q, 2 * n1 + 1);
+ Q->expn += 2;
+ bf_set(T, P);
+ } else {
+ limb_t m;
+ bf_t T1_s, *T1 = &T1_s;
+ bf_t P1_s, *P1 = &P1_s;
+ bf_t Q1_s, *Q1 = &Q1_s;
+
+ m = n1 + ((n2 - n1) >> 1);
+ bf_const_log2_rec(T, P, Q, n1, m, TRUE);
+ bf_init(s, T1);
+ bf_init(s, P1);
+ bf_init(s, Q1);
+ bf_const_log2_rec(T1, P1, Q1, m, n2, need_P);
+ bf_mul(T, T, Q1, BF_PREC_INF, BF_RNDZ);
+ bf_mul(T1, T1, P, BF_PREC_INF, BF_RNDZ);
+ bf_add(T, T, T1, BF_PREC_INF, BF_RNDZ);
+ if (need_P)
+ bf_mul(P, P, P1, BF_PREC_INF, BF_RNDZ);
+ bf_mul(Q, Q, Q1, BF_PREC_INF, BF_RNDZ);
+ bf_delete(T1);
+ bf_delete(P1);
+ bf_delete(Q1);
+ }
+}
+
+/* compute log(2) with faithful rounding at precision 'prec' */
+static void bf_const_log2_internal(bf_t *T, limb_t prec)
+{
+ limb_t w, N;
+ bf_t P_s, *P = &P_s;
+ bf_t Q_s, *Q = &Q_s;
+
+ w = prec + 15;
+ N = w / 3 + 1;
+ bf_init(T->ctx, P);
+ bf_init(T->ctx, Q);
+ bf_const_log2_rec(T, P, Q, 0, N, FALSE);
+ bf_div(T, T, Q, prec, BF_RNDN);
+ bf_delete(P);
+ bf_delete(Q);
+}
+
+/* PI constant */
+
+#define CHUD_A 13591409
+#define CHUD_B 545140134
+#define CHUD_C 640320
+#define CHUD_BITS_PER_TERM 47
+
+static void chud_bs(bf_t *P, bf_t *Q, bf_t *G, int64_t a, int64_t b, int need_g,
+ limb_t prec)
+{
+ bf_context_t *s = P->ctx;
+ int64_t c;
+
+ if (a == (b - 1)) {
+ bf_t T0, T1;
+
+ bf_init(s, &T0);
+ bf_init(s, &T1);
+ bf_set_ui(G, 2 * b - 1);
+ bf_mul_ui(G, G, 6 * b - 1, prec, BF_RNDN);
+ bf_mul_ui(G, G, 6 * b - 5, prec, BF_RNDN);
+ bf_set_ui(&T0, CHUD_B);
+ bf_mul_ui(&T0, &T0, b, prec, BF_RNDN);
+ bf_set_ui(&T1, CHUD_A);
+ bf_add(&T0, &T0, &T1, prec, BF_RNDN);
+ bf_mul(P, G, &T0, prec, BF_RNDN);
+ P->sign = b & 1;
+
+ bf_set_ui(Q, b);
+ bf_mul_ui(Q, Q, b, prec, BF_RNDN);
+ bf_mul_ui(Q, Q, b, prec, BF_RNDN);
+ bf_mul_ui(Q, Q, (uint64_t)CHUD_C * CHUD_C * CHUD_C / 24, prec, BF_RNDN);
+ bf_delete(&T0);
+ bf_delete(&T1);
+ } else {
+ bf_t P2, Q2, G2;
+
+ bf_init(s, &P2);
+ bf_init(s, &Q2);
+ bf_init(s, &G2);
+
+ c = (a + b) / 2;
+ chud_bs(P, Q, G, a, c, 1, prec);
+ chud_bs(&P2, &Q2, &G2, c, b, need_g, prec);
+
+ /* Q = Q1 * Q2 */
+ /* G = G1 * G2 */
+ /* P = P1 * Q2 + P2 * G1 */
+ bf_mul(&P2, &P2, G, prec, BF_RNDN);
+ if (!need_g)
+ bf_set_ui(G, 0);
+ bf_mul(P, P, &Q2, prec, BF_RNDN);
+ bf_add(P, P, &P2, prec, BF_RNDN);
+ bf_delete(&P2);
+
+ bf_mul(Q, Q, &Q2, prec, BF_RNDN);
+ bf_delete(&Q2);
+ if (need_g)
+ bf_mul(G, G, &G2, prec, BF_RNDN);
+ bf_delete(&G2);
+ }
+}
+
+/* compute Pi with faithful rounding at precision 'prec' using the
+ Chudnovsky formula */
+static void bf_const_pi_internal(bf_t *Q, limb_t prec)
+{
+ bf_context_t *s = Q->ctx;
+ int64_t n, prec1;
+ bf_t P, G;
+
+ /* number of serie terms */
+ n = prec / CHUD_BITS_PER_TERM + 1;
+ /* XXX: precision analysis */
+ prec1 = prec + 32;
+
+ bf_init(s, &P);
+ bf_init(s, &G);
+
+ chud_bs(&P, Q, &G, 0, n, 0, BF_PREC_INF);
+
+ bf_mul_ui(&G, Q, CHUD_A, prec1, BF_RNDN);
+ bf_add(&P, &G, &P, prec1, BF_RNDN);
+ bf_div(Q, Q, &P, prec1, BF_RNDF);
+
+ bf_set_ui(&P, CHUD_C);
+ bf_sqrt(&G, &P, prec1, BF_RNDF);
+ bf_mul_ui(&G, &G, (uint64_t)CHUD_C / 12, prec1, BF_RNDF);
+ bf_mul(Q, Q, &G, prec, BF_RNDN);
+ bf_delete(&P);
+ bf_delete(&G);
+}
+
+static int bf_const_get(bf_t *T, limb_t prec, bf_flags_t flags,
+ BFConstCache *c,
+ void (*func)(bf_t *res, limb_t prec), int sign)
+{
+ limb_t ziv_extra_bits, prec1;
+
+ ziv_extra_bits = 32;
+ for(;;) {
+ prec1 = prec + ziv_extra_bits;
+ if (c->prec < prec1) {
+ if (c->val.len == 0)
+ bf_init(T->ctx, &c->val);
+ func(&c->val, prec1);
+ c->prec = prec1;
+ } else {
+ prec1 = c->prec;
+ }
+ bf_set(T, &c->val);
+ T->sign = sign;
+ if (!bf_can_round(T, prec, flags & BF_RND_MASK, prec1)) {
+ /* and more precision and retry */
+ ziv_extra_bits = ziv_extra_bits + (ziv_extra_bits / 2);
+ } else {
+ break;
+ }
+ }
+ return bf_round(T, prec, flags);
+}
+
+static void bf_const_free(BFConstCache *c)
+{
+ bf_delete(&c->val);
+ memset(c, 0, sizeof(*c));
+}
+
+int bf_const_log2(bf_t *T, limb_t prec, bf_flags_t flags)
+{
+ bf_context_t *s = T->ctx;
+ return bf_const_get(T, prec, flags, &s->log2_cache, bf_const_log2_internal, 0);
+}
+
+/* return rounded pi * (1 - 2 * sign) */
+static int bf_const_pi_signed(bf_t *T, int sign, limb_t prec, bf_flags_t flags)
+{
+ bf_context_t *s = T->ctx;
+ return bf_const_get(T, prec, flags, &s->pi_cache, bf_const_pi_internal,
+ sign);
+}
+
+int bf_const_pi(bf_t *T, limb_t prec, bf_flags_t flags)
+{
+ return bf_const_pi_signed(T, 0, prec, flags);
+}
+
+void bf_clear_cache(bf_context_t *s)
+{
+#ifdef USE_FFT_MUL
+ fft_clear_cache(s);
+#endif
+ bf_const_free(&s->log2_cache);
+ bf_const_free(&s->pi_cache);
+}
+
+/* ZivFunc should compute the result 'r' with faithful rounding at
+ precision 'prec'. For efficiency purposes, the final bf_round()
+ does not need to be done in the function. */
+typedef int ZivFunc(bf_t *r, const bf_t *a, limb_t prec, void *opaque);
+
+static int bf_ziv_rounding(bf_t *r, const bf_t *a,
+ limb_t prec, bf_flags_t flags,
+ ZivFunc *f, void *opaque)
+{
+ int rnd_mode, ret;
+ slimb_t prec1, ziv_extra_bits;
+
+ rnd_mode = flags & BF_RND_MASK;
+ if (rnd_mode == BF_RNDF) {
+ /* no need to iterate */
+ f(r, a, prec, opaque);
+ ret = 0;
+ } else {
+ ziv_extra_bits = 32;
+ for(;;) {
+ prec1 = prec + ziv_extra_bits;
+ ret = f(r, a, prec1, opaque);
+ if (ret & (BF_ST_OVERFLOW | BF_ST_UNDERFLOW | BF_ST_MEM_ERROR)) {
+ /* overflow or underflow should never happen because
+ it indicates the rounding cannot be done correctly,
+ but we do not catch all the cases */
+ return ret;
+ }
+ /* if the result is exact, we can stop */
+ if (!(ret & BF_ST_INEXACT)) {
+ ret = 0;
+ break;
+ }
+ if (bf_can_round(r, prec, rnd_mode, prec1)) {
+ ret = BF_ST_INEXACT;
+ break;
+ }
+ ziv_extra_bits = ziv_extra_bits * 2;
+ // printf("ziv_extra_bits=%" PRId64 "\n", (int64_t)ziv_extra_bits);
+ }
+ }
+ if (r->len == 0)
+ return ret;
+ else
+ return __bf_round(r, prec, flags, r->len, ret);
+}
+
+/* add (1 - 2*e_sign) * 2^e */
+static int bf_add_epsilon(bf_t *r, const bf_t *a, slimb_t e, int e_sign,
+ limb_t prec, int flags)
+{
+ bf_t T_s, *T = &T_s;
+ int ret;
+ /* small argument case: result = 1 + epsilon * sign(x) */
+ bf_init(a->ctx, T);
+ bf_set_ui(T, 1);
+ T->sign = e_sign;
+ T->expn += e;
+ ret = bf_add(r, r, T, prec, flags);
+ bf_delete(T);
+ return ret;
+}
+
+/* Compute the exponential using faithful rounding at precision 'prec'.
+ Note: the algorithm is from MPFR */
+static int bf_exp_internal(bf_t *r, const bf_t *a, limb_t prec, void *opaque)
+{
+ bf_context_t *s = r->ctx;
+ bf_t T_s, *T = &T_s;
+ slimb_t n, K, l, i, prec1;
+
+ assert(r != a);
+
+ /* argument reduction:
+ T = a - n*log(2) with 0 <= T < log(2) and n integer.
+ */
+ bf_init(s, T);
+ if (a->expn <= -1) {
+ /* 0 <= abs(a) <= 0.5 */
+ if (a->sign)
+ n = -1;
+ else
+ n = 0;
+ } else {
+ bf_const_log2(T, LIMB_BITS, BF_RNDZ);
+ bf_div(T, a, T, LIMB_BITS, BF_RNDD);
+ bf_get_limb(&n, T, 0);
+ }
+
+ K = bf_isqrt((prec + 1) / 2);
+ l = (prec - 1) / K + 1;
+ /* XXX: precision analysis ? */
+ prec1 = prec + (K + 2 * l + 18) + K + 8;
+ if (a->expn > 0)
+ prec1 += a->expn;
+ // printf("n=%ld K=%ld prec1=%ld\n", n, K, prec1);
+
+ bf_const_log2(T, prec1, BF_RNDF);
+ bf_mul_si(T, T, n, prec1, BF_RNDN);
+ bf_sub(T, a, T, prec1, BF_RNDN);
+
+ /* reduce the range of T */
+ bf_mul_2exp(T, -K, BF_PREC_INF, BF_RNDZ);
+
+ /* Taylor expansion around zero :
+ 1 + x + x^2/2 + ... + x^n/n!
+ = (1 + x * (1 + x/2 * (1 + ... (x/n))))
+ */
+ {
+ bf_t U_s, *U = &U_s;
+
+ bf_init(s, U);
+ bf_set_ui(r, 1);
+ for(i = l ; i >= 1; i--) {
+ bf_set_ui(U, i);
+ bf_div(U, T, U, prec1, BF_RNDN);
+ bf_mul(r, r, U, prec1, BF_RNDN);
+ bf_add_si(r, r, 1, prec1, BF_RNDN);
+ }
+ bf_delete(U);
+ }
+ bf_delete(T);
+
+ /* undo the range reduction */
+ for(i = 0; i < K; i++) {
+ bf_mul(r, r, r, prec1, BF_RNDN | BF_FLAG_EXT_EXP);
+ }
+
+ /* undo the argument reduction */
+ bf_mul_2exp(r, n, BF_PREC_INF, BF_RNDZ | BF_FLAG_EXT_EXP);
+
+ return BF_ST_INEXACT;
+}
+
+/* crude overflow and underflow tests for exp(a). a_low <= a <= a_high */
+static int check_exp_underflow_overflow(bf_context_t *s, bf_t *r,
+ const bf_t *a_low, const bf_t *a_high,
+ limb_t prec, bf_flags_t flags)
+{
+ bf_t T_s, *T = &T_s;
+ bf_t log2_s, *log2 = &log2_s;
+ slimb_t e_min, e_max;
+
+ if (a_high->expn <= 0)
+ return 0;
+
+ e_max = (limb_t)1 << (bf_get_exp_bits(flags) - 1);
+ e_min = -e_max + 3;
+ if (flags & BF_FLAG_SUBNORMAL)
+ e_min -= (prec - 1);
+
+ bf_init(s, T);
+ bf_init(s, log2);
+ bf_const_log2(log2, LIMB_BITS, BF_RNDU);
+ bf_mul_ui(T, log2, e_max, LIMB_BITS, BF_RNDU);
+ /* a_low > e_max * log(2) implies exp(a) > e_max */
+ if (bf_cmp_lt(T, a_low) > 0) {
+ /* overflow */
+ bf_delete(T);
+ bf_delete(log2);
+ return bf_set_overflow(r, 0, prec, flags);
+ }
+ /* a_high < (e_min - 2) * log(2) implies exp(a) < (e_min - 2) */
+ bf_const_log2(log2, LIMB_BITS, BF_RNDD);
+ bf_mul_si(T, log2, e_min - 2, LIMB_BITS, BF_RNDD);
+ if (bf_cmp_lt(a_high, T)) {
+ int rnd_mode = flags & BF_RND_MASK;
+
+ /* underflow */
+ bf_delete(T);
+ bf_delete(log2);
+ if (rnd_mode == BF_RNDU) {
+ /* set the smallest value */
+ bf_set_ui(r, 1);
+ r->expn = e_min;
+ } else {
+ bf_set_zero(r, 0);
+ }
+ return BF_ST_UNDERFLOW | BF_ST_INEXACT;
+ }
+ bf_delete(log2);
+ bf_delete(T);
+ return 0;
+}
+
+int bf_exp(bf_t *r, const bf_t *a, limb_t prec, bf_flags_t flags)
+{
+ bf_context_t *s = r->ctx;
+ int ret;
+ assert(r != a);
+ if (a->len == 0) {
+ if (a->expn == BF_EXP_NAN) {
+ bf_set_nan(r);
+ } else if (a->expn == BF_EXP_INF) {
+ if (a->sign)
+ bf_set_zero(r, 0);
+ else
+ bf_set_inf(r, 0);
+ } else {
+ bf_set_ui(r, 1);
+ }
+ return 0;
+ }
+
+ ret = check_exp_underflow_overflow(s, r, a, a, prec, flags);
+ if (ret)
+ return ret;
+ if (a->expn < 0 && (-a->expn) >= (prec + 2)) {
+ /* small argument case: result = 1 + epsilon * sign(x) */
+ bf_set_ui(r, 1);
+ return bf_add_epsilon(r, r, -(prec + 2), a->sign, prec, flags);
+ }
+
+ return bf_ziv_rounding(r, a, prec, flags, bf_exp_internal, NULL);
+}
+
+static int bf_log_internal(bf_t *r, const bf_t *a, limb_t prec, void *opaque)
+{
+ bf_context_t *s = r->ctx;
+ bf_t T_s, *T = &T_s;
+ bf_t U_s, *U = &U_s;
+ bf_t V_s, *V = &V_s;
+ slimb_t n, prec1, l, i, K;
+
+ assert(r != a);
+
+ bf_init(s, T);
+ /* argument reduction 1 */
+ /* T=a*2^n with 2/3 <= T <= 4/3 */
+ {
+ bf_t U_s, *U = &U_s;
+ bf_set(T, a);
+ n = T->expn;
+ T->expn = 0;
+ /* U= ~ 2/3 */
+ bf_init(s, U);
+ bf_set_ui(U, 0xaaaaaaaa);
+ U->expn = 0;
+ if (bf_cmp_lt(T, U)) {
+ T->expn++;
+ n--;
+ }
+ bf_delete(U);
+ }
+ // printf("n=%ld\n", n);
+ // bf_print_str("T", T);
+
+ /* XXX: precision analysis */
+ /* number of iterations for argument reduction 2 */
+ K = bf_isqrt((prec + 1) / 2);
+ /* order of Taylor expansion */
+ l = prec / (2 * K) + 1;
+ /* precision of the intermediate computations */
+ prec1 = prec + K + 2 * l + 32;
+
+ bf_init(s, U);
+ bf_init(s, V);
+
+ /* Note: cancellation occurs here, so we use more precision (XXX:
+ reduce the precision by computing the exact cancellation) */
+ bf_add_si(T, T, -1, BF_PREC_INF, BF_RNDN);
+
+ /* argument reduction 2 */
+ for(i = 0; i < K; i++) {
+ /* T = T / (1 + sqrt(1 + T)) */
+ bf_add_si(U, T, 1, prec1, BF_RNDN);
+ bf_sqrt(V, U, prec1, BF_RNDF);
+ bf_add_si(U, V, 1, prec1, BF_RNDN);
+ bf_div(T, T, U, prec1, BF_RNDN);
+ }
+
+ {
+ bf_t Y_s, *Y = &Y_s;
+ bf_t Y2_s, *Y2 = &Y2_s;
+ bf_init(s, Y);
+ bf_init(s, Y2);
+
+ /* compute ln(1+x) = ln((1+y)/(1-y)) with y=x/(2+x)
+ = y + y^3/3 + ... + y^(2*l + 1) / (2*l+1)
+ with Y=Y^2
+ = y*(1+Y/3+Y^2/5+...) = y*(1+Y*(1/3+Y*(1/5 + ...)))
+ */
+ bf_add_si(Y, T, 2, prec1, BF_RNDN);
+ bf_div(Y, T, Y, prec1, BF_RNDN);
+
+ bf_mul(Y2, Y, Y, prec1, BF_RNDN);
+ bf_set_ui(r, 0);
+ for(i = l; i >= 1; i--) {
+ bf_set_ui(U, 1);
+ bf_set_ui(V, 2 * i + 1);
+ bf_div(U, U, V, prec1, BF_RNDN);
+ bf_add(r, r, U, prec1, BF_RNDN);
+ bf_mul(r, r, Y2, prec1, BF_RNDN);
+ }
+ bf_add_si(r, r, 1, prec1, BF_RNDN);
+ bf_mul(r, r, Y, prec1, BF_RNDN);
+ bf_delete(Y);
+ bf_delete(Y2);
+ }
+ bf_delete(V);
+ bf_delete(U);
+
+ /* multiplication by 2 for the Taylor expansion and undo the
+ argument reduction 2*/
+ bf_mul_2exp(r, K + 1, BF_PREC_INF, BF_RNDZ);
+
+ /* undo the argument reduction 1 */
+ bf_const_log2(T, prec1, BF_RNDF);
+ bf_mul_si(T, T, n, prec1, BF_RNDN);
+ bf_add(r, r, T, prec1, BF_RNDN);
+
+ bf_delete(T);
+ return BF_ST_INEXACT;
+}
+
+int bf_log(bf_t *r, const bf_t *a, limb_t prec, bf_flags_t flags)
+{
+ bf_context_t *s = r->ctx;
+ bf_t T_s, *T = &T_s;
+
+ assert(r != a);
+ if (a->len == 0) {
+ if (a->expn == BF_EXP_NAN) {
+ bf_set_nan(r);
+ return 0;
+ } else if (a->expn == BF_EXP_INF) {
+ if (a->sign) {
+ bf_set_nan(r);
+ return BF_ST_INVALID_OP;
+ } else {
+ bf_set_inf(r, 0);
+ return 0;
+ }
+ } else {
+ bf_set_inf(r, 1);
+ return 0;
+ }
+ }
+ if (a->sign) {
+ bf_set_nan(r);
+ return BF_ST_INVALID_OP;
+ }
+ bf_init(s, T);
+ bf_set_ui(T, 1);
+ if (bf_cmp_eq(a, T)) {
+ bf_set_zero(r, 0);
+ bf_delete(T);
+ return 0;
+ }
+ bf_delete(T);
+
+ return bf_ziv_rounding(r, a, prec, flags, bf_log_internal, NULL);
+}
+
+/* x and y finite and x > 0 */
+static int bf_pow_generic(bf_t *r, const bf_t *x, limb_t prec, void *opaque)
+{
+ bf_context_t *s = r->ctx;
+ const bf_t *y = opaque;
+ bf_t T_s, *T = &T_s;
+ limb_t prec1;
+
+ bf_init(s, T);
+ /* XXX: proof for the added precision */
+ prec1 = prec + 32;
+ bf_log(T, x, prec1, BF_RNDF | BF_FLAG_EXT_EXP);
+ bf_mul(T, T, y, prec1, BF_RNDF | BF_FLAG_EXT_EXP);
+ if (bf_is_nan(T))
+ bf_set_nan(r);
+ else
+ bf_exp_internal(r, T, prec1, NULL); /* no overflow/underlow test needed */
+ bf_delete(T);
+ return BF_ST_INEXACT;
+}
+
+/* x and y finite, x > 0, y integer and y fits on one limb */
+static int bf_pow_int(bf_t *r, const bf_t *x, limb_t prec, void *opaque)
+{
+ bf_context_t *s = r->ctx;
+ const bf_t *y = opaque;
+ bf_t T_s, *T = &T_s;
+ limb_t prec1;
+ int ret;
+ slimb_t y1;
+
+ bf_get_limb(&y1, y, 0);
+ if (y1 < 0)
+ y1 = -y1;
+ /* XXX: proof for the added precision */
+ prec1 = prec + ceil_log2(y1) * 2 + 8;
+ ret = bf_pow_ui(r, x, y1 < 0 ? -y1 : y1, prec1, BF_RNDN | BF_FLAG_EXT_EXP);
+ if (y->sign) {
+ bf_init(s, T);
+ bf_set_ui(T, 1);
+ ret |= bf_div(r, T, r, prec1, BF_RNDN | BF_FLAG_EXT_EXP);
+ bf_delete(T);
+ }
+ return ret;
+}
+
+/* x must be a finite non zero float. Return TRUE if there is a
+ floating point number r such as x=r^(2^n) and return this floating
+ point number 'r'. Otherwise return FALSE and r is undefined. */
+static BOOL check_exact_power2n(bf_t *r, const bf_t *x, slimb_t n)
+{
+ bf_context_t *s = r->ctx;
+ bf_t T_s, *T = &T_s;
+ slimb_t e, i, er;
+ limb_t v;
+
+ /* x = m*2^e with m odd integer */
+ e = bf_get_exp_min(x);
+ /* fast check on the exponent */
+ if (n > (LIMB_BITS - 1)) {
+ if (e != 0)
+ return FALSE;
+ er = 0;
+ } else {
+ if ((e & (((limb_t)1 << n) - 1)) != 0)
+ return FALSE;
+ er = e >> n;
+ }
+ /* every perfect odd square = 1 modulo 8 */
+ v = get_bits(x->tab, x->len, x->len * LIMB_BITS - x->expn + e);
+ if ((v & 7) != 1)
+ return FALSE;
+
+ bf_init(s, T);
+ bf_set(T, x);
+ T->expn -= e;
+ for(i = 0; i < n; i++) {
+ if (i != 0)
+ bf_set(T, r);
+ if (bf_sqrtrem(r, NULL, T) != 0)
+ return FALSE;
+ }
+ r->expn += er;
+ return TRUE;
+}
+
+/* prec = BF_PREC_INF is accepted for x and y integers and y >= 0 */
+int bf_pow(bf_t *r, const bf_t *x, const bf_t *y, limb_t prec, bf_flags_t flags)
+{
+ bf_context_t *s = r->ctx;
+ bf_t T_s, *T = &T_s;
+ bf_t ytmp_s;
+ BOOL y_is_int, y_is_odd;
+ int r_sign, ret, rnd_mode;
+ slimb_t y_emin;
+
+ if (x->len == 0 || y->len == 0) {
+ if (y->expn == BF_EXP_ZERO) {
+ /* pow(x, 0) = 1 */
+ bf_set_ui(r, 1);
+ } else if (x->expn == BF_EXP_NAN) {
+ bf_set_nan(r);
+ } else {
+ int cmp_x_abs_1;
+ bf_set_ui(r, 1);
+ cmp_x_abs_1 = bf_cmpu(x, r);
+ if (cmp_x_abs_1 == 0 && (flags & BF_POW_JS_QUIRKS) &&
+ (y->expn >= BF_EXP_INF)) {
+ bf_set_nan(r);
+ } else if (cmp_x_abs_1 == 0 &&
+ (!x->sign || y->expn != BF_EXP_NAN)) {
+ /* pow(1, y) = 1 even if y = NaN */
+ /* pow(-1, +/-inf) = 1 */
+ } else if (y->expn == BF_EXP_NAN) {
+ bf_set_nan(r);
+ } else if (y->expn == BF_EXP_INF) {
+ if (y->sign == (cmp_x_abs_1 > 0)) {
+ bf_set_zero(r, 0);
+ } else {
+ bf_set_inf(r, 0);
+ }
+ } else {
+ y_emin = bf_get_exp_min(y);
+ y_is_odd = (y_emin == 0);
+ if (y->sign == (x->expn == BF_EXP_ZERO)) {
+ bf_set_inf(r, y_is_odd & x->sign);
+ if (y->sign) {
+ /* pow(0, y) with y < 0 */
+ return BF_ST_DIVIDE_ZERO;
+ }
+ } else {
+ bf_set_zero(r, y_is_odd & x->sign);
+ }
+ }
+ }
+ return 0;
+ }
+ bf_init(s, T);
+ bf_set(T, x);
+ y_emin = bf_get_exp_min(y);
+ y_is_int = (y_emin >= 0);
+ rnd_mode = flags & BF_RND_MASK;
+ if (x->sign) {
+ if (!y_is_int) {
+ bf_set_nan(r);
+ bf_delete(T);
+ return BF_ST_INVALID_OP;
+ }
+ y_is_odd = (y_emin == 0);
+ r_sign = y_is_odd;
+ /* change the directed rounding mode if the sign of the result
+ is changed */
+ if (r_sign && (rnd_mode == BF_RNDD || rnd_mode == BF_RNDU))
+ flags ^= 1;
+ bf_neg(T);
+ } else {
+ r_sign = 0;
+ }
+
+ bf_set_ui(r, 1);
+ if (bf_cmp_eq(T, r)) {
+ /* abs(x) = 1: nothing more to do */
+ ret = 0;
+ } else {
+ /* check the overflow/underflow cases */
+ {
+ bf_t al_s, *al = &al_s;
+ bf_t ah_s, *ah = &ah_s;
+ limb_t precl = LIMB_BITS;
+
+ bf_init(s, al);
+ bf_init(s, ah);
+ /* compute bounds of log(abs(x)) * y with a low precision */
+ /* XXX: compute bf_log() once */
+ /* XXX: add a fast test before this slow test */
+ bf_log(al, T, precl, BF_RNDD);
+ bf_log(ah, T, precl, BF_RNDU);
+ bf_mul(al, al, y, precl, BF_RNDD ^ y->sign);
+ bf_mul(ah, ah, y, precl, BF_RNDU ^ y->sign);
+ ret = check_exp_underflow_overflow(s, r, al, ah, prec, flags);
+ bf_delete(al);
+ bf_delete(ah);
+ if (ret)
+ goto done;
+ }
+
+ if (y_is_int) {
+ slimb_t T_bits, e;
+ int_pow:
+ T_bits = T->expn - bf_get_exp_min(T);
+ if (T_bits == 1) {
+ /* pow(2^b, y) = 2^(b*y) */
+ bf_mul_si(T, y, T->expn - 1, LIMB_BITS, BF_RNDZ);
+ bf_get_limb(&e, T, 0);
+ bf_set_ui(r, 1);
+ ret = bf_mul_2exp(r, e, prec, flags);
+ } else if (prec == BF_PREC_INF) {
+ slimb_t y1;
+ /* specific case for infinite precision (integer case) */
+ bf_get_limb(&y1, y, 0);
+ assert(!y->sign);
+ /* x must be an integer, so abs(x) >= 2 */
+ if (y1 >= ((slimb_t)1 << BF_EXP_BITS_MAX)) {
+ bf_delete(T);
+ return bf_set_overflow(r, 0, BF_PREC_INF, flags);
+ }
+ ret = bf_pow_ui(r, T, y1, BF_PREC_INF, BF_RNDZ);
+ } else {
+ if (y->expn <= 31) {
+ /* small enough power: use exponentiation in all cases */
+ } else if (y->sign) {
+ /* cannot be exact */
+ goto general_case;
+ } else {
+ if (rnd_mode == BF_RNDF)
+ goto general_case; /* no need to track exact results */
+ /* see if the result has a chance to be exact:
+ if x=a*2^b (a odd), x^y=a^y*2^(b*y)
+ x^y needs a precision of at least floor_log2(a)*y bits
+ */
+ bf_mul_si(r, y, T_bits - 1, LIMB_BITS, BF_RNDZ);
+ bf_get_limb(&e, r, 0);
+ if (prec < e)
+ goto general_case;
+ }
+ ret = bf_ziv_rounding(r, T, prec, flags, bf_pow_int, (void *)y);
+ }
+ } else {
+ if (rnd_mode != BF_RNDF) {
+ bf_t *y1;
+ if (y_emin < 0 && check_exact_power2n(r, T, -y_emin)) {
+ /* the problem is reduced to a power to an integer */
+#if 0
+ printf("\nn=%" PRId64 "\n", -(int64_t)y_emin);
+ bf_print_str("T", T);
+ bf_print_str("r", r);
+#endif
+ bf_set(T, r);
+ y1 = &ytmp_s;
+ y1->tab = y->tab;
+ y1->len = y->len;
+ y1->sign = y->sign;
+ y1->expn = y->expn - y_emin;
+ y = y1;
+ goto int_pow;
+ }
+ }
+ general_case:
+ ret = bf_ziv_rounding(r, T, prec, flags, bf_pow_generic, (void *)y);
+ }
+ }
+ done:
+ bf_delete(T);
+ r->sign = r_sign;
+ return ret;
+}
+
+/* compute sqrt(-2*x-x^2) to get |sin(x)| from cos(x) - 1. */
+static void bf_sqrt_sin(bf_t *r, const bf_t *x, limb_t prec1)
+{
+ bf_context_t *s = r->ctx;
+ bf_t T_s, *T = &T_s;
+ bf_init(s, T);
+ bf_set(T, x);
+ bf_mul(r, T, T, prec1, BF_RNDN);
+ bf_mul_2exp(T, 1, BF_PREC_INF, BF_RNDZ);
+ bf_add(T, T, r, prec1, BF_RNDN);
+ bf_neg(T);
+ bf_sqrt(r, T, prec1, BF_RNDF);
+ bf_delete(T);
+}
+
+static int bf_sincos(bf_t *s, bf_t *c, const bf_t *a, limb_t prec)
+{
+ bf_context_t *s1 = a->ctx;
+ bf_t T_s, *T = &T_s;
+ bf_t U_s, *U = &U_s;
+ bf_t r_s, *r = &r_s;
+ slimb_t K, prec1, i, l, mod, prec2;
+ int is_neg;
+
+ assert(c != a && s != a);
+
+ bf_init(s1, T);
+ bf_init(s1, U);
+ bf_init(s1, r);
+
+ /* XXX: precision analysis */
+ K = bf_isqrt(prec / 2);
+ l = prec / (2 * K) + 1;
+ prec1 = prec + 2 * K + l + 8;
+
+ /* after the modulo reduction, -pi/4 <= T <= pi/4 */
+ if (a->expn <= -1) {
+ /* abs(a) <= 0.25: no modulo reduction needed */
+ bf_set(T, a);
+ mod = 0;
+ } else {
+ slimb_t cancel;
+ cancel = 0;
+ for(;;) {
+ prec2 = prec1 + a->expn + cancel;
+ bf_const_pi(U, prec2, BF_RNDF);
+ bf_mul_2exp(U, -1, BF_PREC_INF, BF_RNDZ);
+ bf_remquo(&mod, T, a, U, prec2, BF_RNDN, BF_RNDN);
+ // printf("T.expn=%ld prec2=%ld\n", T->expn, prec2);
+ if (mod == 0 || (T->expn != BF_EXP_ZERO &&
+ (T->expn + prec2) >= (prec1 - 1)))
+ break;
+ /* increase the number of bits until the precision is good enough */
+ cancel = bf_max(-T->expn, (cancel + 1) * 3 / 2);
+ }
+ mod &= 3;
+ }
+
+ is_neg = T->sign;
+
+ /* compute cosm1(x) = cos(x) - 1 */
+ bf_mul(T, T, T, prec1, BF_RNDN);
+ bf_mul_2exp(T, -2 * K, BF_PREC_INF, BF_RNDZ);
+
+ /* Taylor expansion:
+ -x^2/2 + x^4/4! - x^6/6! + ...
+ */
+ bf_set_ui(r, 1);
+ for(i = l ; i >= 1; i--) {
+ bf_set_ui(U, 2 * i - 1);
+ bf_mul_ui(U, U, 2 * i, BF_PREC_INF, BF_RNDZ);
+ bf_div(U, T, U, prec1, BF_RNDN);
+ bf_mul(r, r, U, prec1, BF_RNDN);
+ bf_neg(r);
+ if (i != 1)
+ bf_add_si(r, r, 1, prec1, BF_RNDN);
+ }
+ bf_delete(U);
+
+ /* undo argument reduction:
+ cosm1(2*x)= 2*(2*cosm1(x)+cosm1(x)^2)
+ */
+ for(i = 0; i < K; i++) {
+ bf_mul(T, r, r, prec1, BF_RNDN);
+ bf_mul_2exp(r, 1, BF_PREC_INF, BF_RNDZ);
+ bf_add(r, r, T, prec1, BF_RNDN);
+ bf_mul_2exp(r, 1, BF_PREC_INF, BF_RNDZ);
+ }
+ bf_delete(T);
+
+ if (c) {
+ if ((mod & 1) == 0) {
+ bf_add_si(c, r, 1, prec1, BF_RNDN);
+ } else {
+ bf_sqrt_sin(c, r, prec1);
+ c->sign = is_neg ^ 1;
+ }
+ c->sign ^= mod >> 1;
+ }
+ if (s) {
+ if ((mod & 1) == 0) {
+ bf_sqrt_sin(s, r, prec1);
+ s->sign = is_neg;
+ } else {
+ bf_add_si(s, r, 1, prec1, BF_RNDN);
+ }
+ s->sign ^= mod >> 1;
+ }
+ bf_delete(r);
+ return BF_ST_INEXACT;
+}
+
+static int bf_cos_internal(bf_t *r, const bf_t *a, limb_t prec, void *opaque)
+{
+ return bf_sincos(NULL, r, a, prec);
+}
+
+int bf_cos(bf_t *r, const bf_t *a, limb_t prec, bf_flags_t flags)
+{
+ if (a->len == 0) {
+ if (a->expn == BF_EXP_NAN) {
+ bf_set_nan(r);
+ return 0;
+ } else if (a->expn == BF_EXP_INF) {
+ bf_set_nan(r);
+ return BF_ST_INVALID_OP;
+ } else {
+ bf_set_ui(r, 1);
+ return 0;
+ }
+ }
+
+ /* small argument case: result = 1+r(x) with r(x) = -x^2/2 +
+ O(X^4). We assume r(x) < 2^(2*EXP(x) - 1). */
+ if (a->expn < 0) {
+ slimb_t e;
+ e = 2 * a->expn - 1;
+ if (e < -(prec + 2)) {
+ bf_set_ui(r, 1);
+ return bf_add_epsilon(r, r, e, 1, prec, flags);
+ }
+ }
+
+ return bf_ziv_rounding(r, a, prec, flags, bf_cos_internal, NULL);
+}
+
+static int bf_sin_internal(bf_t *r, const bf_t *a, limb_t prec, void *opaque)
+{
+ return bf_sincos(r, NULL, a, prec);
+}
+
+int bf_sin(bf_t *r, const bf_t *a, limb_t prec, bf_flags_t flags)
+{
+ if (a->len == 0) {
+ if (a->expn == BF_EXP_NAN) {
+ bf_set_nan(r);
+ return 0;
+ } else if (a->expn == BF_EXP_INF) {
+ bf_set_nan(r);
+ return BF_ST_INVALID_OP;
+ } else {
+ bf_set_zero(r, a->sign);
+ return 0;
+ }
+ }
+
+ /* small argument case: result = x+r(x) with r(x) = -x^3/6 +
+ O(X^5). We assume r(x) < 2^(3*EXP(x) - 2). */
+ if (a->expn < 0) {
+ slimb_t e;
+ e = sat_add(2 * a->expn, a->expn - 2);
+ if (e < a->expn - bf_max(prec + 2, a->len * LIMB_BITS + 2)) {
+ bf_set(r, a);
+ return bf_add_epsilon(r, r, e, 1 - a->sign, prec, flags);
+ }
+ }
+
+ return bf_ziv_rounding(r, a, prec, flags, bf_sin_internal, NULL);
+}
+
+static int bf_tan_internal(bf_t *r, const bf_t *a, limb_t prec, void *opaque)
+{
+ bf_context_t *s = r->ctx;
+ bf_t T_s, *T = &T_s;
+ limb_t prec1;
+
+ /* XXX: precision analysis */
+ prec1 = prec + 8;
+ bf_init(s, T);
+ bf_sincos(r, T, a, prec1);
+ bf_div(r, r, T, prec1, BF_RNDF);
+ bf_delete(T);
+ return BF_ST_INEXACT;
+}
+
+int bf_tan(bf_t *r, const bf_t *a, limb_t prec, bf_flags_t flags)
+{
+ assert(r != a);
+ if (a->len == 0) {
+ if (a->expn == BF_EXP_NAN) {
+ bf_set_nan(r);
+ return 0;
+ } else if (a->expn == BF_EXP_INF) {
+ bf_set_nan(r);
+ return BF_ST_INVALID_OP;
+ } else {
+ bf_set_zero(r, a->sign);
+ return 0;
+ }
+ }
+
+ /* small argument case: result = x+r(x) with r(x) = x^3/3 +
+ O(X^5). We assume r(x) < 2^(3*EXP(x) - 1). */
+ if (a->expn < 0) {
+ slimb_t e;
+ e = sat_add(2 * a->expn, a->expn - 1);
+ if (e < a->expn - bf_max(prec + 2, a->len * LIMB_BITS + 2)) {
+ bf_set(r, a);
+ return bf_add_epsilon(r, r, e, a->sign, prec, flags);
+ }
+ }
+
+ return bf_ziv_rounding(r, a, prec, flags, bf_tan_internal, NULL);
+}
+
+/* if add_pi2 is true, add pi/2 to the result (used for acos(x) to
+ avoid cancellation) */
+static int bf_atan_internal(bf_t *r, const bf_t *a, limb_t prec,
+ void *opaque)
+{
+ bf_context_t *s = r->ctx;
+ BOOL add_pi2 = (BOOL)(intptr_t)opaque;
+ bf_t T_s, *T = &T_s;
+ bf_t U_s, *U = &U_s;
+ bf_t V_s, *V = &V_s;
+ bf_t X2_s, *X2 = &X2_s;
+ int cmp_1;
+ slimb_t prec1, i, K, l;
+
+ /* XXX: precision analysis */
+ K = bf_isqrt((prec + 1) / 2);
+ l = prec / (2 * K) + 1;
+ prec1 = prec + K + 2 * l + 32;
+ // printf("prec=%d K=%d l=%d prec1=%d\n", (int)prec, (int)K, (int)l, (int)prec1);
+
+ bf_init(s, T);
+ cmp_1 = (a->expn >= 1); /* a >= 1 */
+ if (cmp_1) {
+ bf_set_ui(T, 1);
+ bf_div(T, T, a, prec1, BF_RNDN);
+ } else {
+ bf_set(T, a);
+ }
+
+ /* abs(T) <= 1 */
+
+ /* argument reduction */
+
+ bf_init(s, U);
+ bf_init(s, V);
+ bf_init(s, X2);
+ for(i = 0; i < K; i++) {
+ /* T = T / (1 + sqrt(1 + T^2)) */
+ bf_mul(U, T, T, prec1, BF_RNDN);
+ bf_add_si(U, U, 1, prec1, BF_RNDN);
+ bf_sqrt(V, U, prec1, BF_RNDN);
+ bf_add_si(V, V, 1, prec1, BF_RNDN);
+ bf_div(T, T, V, prec1, BF_RNDN);
+ }
+
+ /* Taylor series:
+ x - x^3/3 + ... + (-1)^ l * y^(2*l + 1) / (2*l+1)
+ */
+ bf_mul(X2, T, T, prec1, BF_RNDN);
+ bf_set_ui(r, 0);
+ for(i = l; i >= 1; i--) {
+ bf_set_si(U, 1);
+ bf_set_ui(V, 2 * i + 1);
+ bf_div(U, U, V, prec1, BF_RNDN);
+ bf_neg(r);
+ bf_add(r, r, U, prec1, BF_RNDN);
+ bf_mul(r, r, X2, prec1, BF_RNDN);
+ }
+ bf_neg(r);
+ bf_add_si(r, r, 1, prec1, BF_RNDN);
+ bf_mul(r, r, T, prec1, BF_RNDN);
+
+ /* undo the argument reduction */
+ bf_mul_2exp(r, K, BF_PREC_INF, BF_RNDZ);
+
+ bf_delete(U);
+ bf_delete(V);
+ bf_delete(X2);
+
+ i = add_pi2;
+ if (cmp_1 > 0) {
+ /* undo the inversion : r = sign(a)*PI/2 - r */
+ bf_neg(r);
+ i += 1 - 2 * a->sign;
+ }
+ /* add i*(pi/2) with -1 <= i <= 2 */
+ if (i != 0) {
+ bf_const_pi(T, prec1, BF_RNDF);
+ if (i != 2)
+ bf_mul_2exp(T, -1, BF_PREC_INF, BF_RNDZ);
+ T->sign = (i < 0);
+ bf_add(r, T, r, prec1, BF_RNDN);
+ }
+
+ bf_delete(T);
+ return BF_ST_INEXACT;
+}
+
+int bf_atan(bf_t *r, const bf_t *a, limb_t prec, bf_flags_t flags)
+{
+ bf_context_t *s = r->ctx;
+ bf_t T_s, *T = &T_s;
+ int res;
+
+ if (a->len == 0) {
+ if (a->expn == BF_EXP_NAN) {
+ bf_set_nan(r);
+ return 0;
+ } else if (a->expn == BF_EXP_INF) {
+ /* -PI/2 or PI/2 */
+ bf_const_pi_signed(r, a->sign, prec, flags);
+ bf_mul_2exp(r, -1, BF_PREC_INF, BF_RNDZ);
+ return BF_ST_INEXACT;
+ } else {
+ bf_set_zero(r, a->sign);
+ return 0;
+ }
+ }
+
+ bf_init(s, T);
+ bf_set_ui(T, 1);
+ res = bf_cmpu(a, T);
+ bf_delete(T);
+ if (res == 0) {
+ /* short cut: abs(a) == 1 -> +/-pi/4 */
+ bf_const_pi_signed(r, a->sign, prec, flags);
+ bf_mul_2exp(r, -2, BF_PREC_INF, BF_RNDZ);
+ return BF_ST_INEXACT;
+ }
+
+ /* small argument case: result = x+r(x) with r(x) = -x^3/3 +
+ O(X^5). We assume r(x) < 2^(3*EXP(x) - 1). */
+ if (a->expn < 0) {
+ slimb_t e;
+ e = sat_add(2 * a->expn, a->expn - 1);
+ if (e < a->expn - bf_max(prec + 2, a->len * LIMB_BITS + 2)) {
+ bf_set(r, a);
+ return bf_add_epsilon(r, r, e, 1 - a->sign, prec, flags);
+ }
+ }
+
+ return bf_ziv_rounding(r, a, prec, flags, bf_atan_internal, (void *)FALSE);
+}
+
+static int bf_atan2_internal(bf_t *r, const bf_t *y, limb_t prec, void *opaque)
+{
+ bf_context_t *s = r->ctx;
+ const bf_t *x = opaque;
+ bf_t T_s, *T = &T_s;
+ limb_t prec1;
+ int ret;
+
+ if (y->expn == BF_EXP_NAN || x->expn == BF_EXP_NAN) {
+ bf_set_nan(r);
+ return 0;
+ }
+
+ /* compute atan(y/x) assumming inf/inf = 1 and 0/0 = 0 */
+ bf_init(s, T);
+ prec1 = prec + 32;
+ if (y->expn == BF_EXP_INF && x->expn == BF_EXP_INF) {
+ bf_set_ui(T, 1);
+ T->sign = y->sign ^ x->sign;
+ } else if (y->expn == BF_EXP_ZERO && x->expn == BF_EXP_ZERO) {
+ bf_set_zero(T, y->sign ^ x->sign);
+ } else {
+ bf_div(T, y, x, prec1, BF_RNDF);
+ }
+ ret = bf_atan(r, T, prec1, BF_RNDF);
+
+ if (x->sign) {
+ /* if x < 0 (it includes -0), return sign(y)*pi + atan(y/x) */
+ bf_const_pi(T, prec1, BF_RNDF);
+ T->sign = y->sign;
+ bf_add(r, r, T, prec1, BF_RNDN);
+ ret |= BF_ST_INEXACT;
+ }
+
+ bf_delete(T);
+ return ret;
+}
+
+int bf_atan2(bf_t *r, const bf_t *y, const bf_t *x,
+ limb_t prec, bf_flags_t flags)
+{
+ return bf_ziv_rounding(r, y, prec, flags, bf_atan2_internal, (void *)x);
+}
+
+static int bf_asin_internal(bf_t *r, const bf_t *a, limb_t prec, void *opaque)
+{
+ bf_context_t *s = r->ctx;
+ BOOL is_acos = (BOOL)(intptr_t)opaque;
+ bf_t T_s, *T = &T_s;
+ limb_t prec1, prec2;
+
+ /* asin(x) = atan(x/sqrt(1-x^2))
+ acos(x) = pi/2 - asin(x) */
+ prec1 = prec + 8;
+ /* increase the precision in x^2 to compensate the cancellation in
+ (1-x^2) if x is close to 1 */
+ /* XXX: use less precision when possible */
+ if (a->expn >= 0)
+ prec2 = BF_PREC_INF;
+ else
+ prec2 = prec1;
+ bf_init(s, T);
+ bf_mul(T, a, a, prec2, BF_RNDN);
+ bf_neg(T);
+ bf_add_si(T, T, 1, prec2, BF_RNDN);
+
+ bf_sqrt(r, T, prec1, BF_RNDN);
+ bf_div(T, a, r, prec1, BF_RNDN);
+ if (is_acos)
+ bf_neg(T);
+ bf_atan_internal(r, T, prec1, (void *)(intptr_t)is_acos);
+ bf_delete(T);
+ return BF_ST_INEXACT;
+}
+
+int bf_asin(bf_t *r, const bf_t *a, limb_t prec, bf_flags_t flags)
+{
+ bf_context_t *s = r->ctx;
+ bf_t T_s, *T = &T_s;
+ int res;
+
+ if (a->len == 0) {
+ if (a->expn == BF_EXP_NAN) {
+ bf_set_nan(r);
+ return 0;
+ } else if (a->expn == BF_EXP_INF) {
+ bf_set_nan(r);
+ return BF_ST_INVALID_OP;
+ } else {
+ bf_set_zero(r, a->sign);
+ return 0;
+ }
+ }
+ bf_init(s, T);
+ bf_set_ui(T, 1);
+ res = bf_cmpu(a, T);
+ bf_delete(T);
+ if (res > 0) {
+ bf_set_nan(r);
+ return BF_ST_INVALID_OP;
+ }
+
+ /* small argument case: result = x+r(x) with r(x) = x^3/6 +
+ O(X^5). We assume r(x) < 2^(3*EXP(x) - 2). */
+ if (a->expn < 0) {
+ slimb_t e;
+ e = sat_add(2 * a->expn, a->expn - 2);
+ if (e < a->expn - bf_max(prec + 2, a->len * LIMB_BITS + 2)) {
+ bf_set(r, a);
+ return bf_add_epsilon(r, r, e, a->sign, prec, flags);
+ }
+ }
+
+ return bf_ziv_rounding(r, a, prec, flags, bf_asin_internal, (void *)FALSE);
+}
+
+int bf_acos(bf_t *r, const bf_t *a, limb_t prec, bf_flags_t flags)
+{
+ bf_context_t *s = r->ctx;
+ bf_t T_s, *T = &T_s;
+ int res;
+
+ if (a->len == 0) {
+ if (a->expn == BF_EXP_NAN) {
+ bf_set_nan(r);
+ return 0;
+ } else if (a->expn == BF_EXP_INF) {
+ bf_set_nan(r);
+ return BF_ST_INVALID_OP;
+ } else {
+ bf_const_pi(r, prec, flags);
+ bf_mul_2exp(r, -1, BF_PREC_INF, BF_RNDZ);
+ return BF_ST_INEXACT;
+ }
+ }
+ bf_init(s, T);
+ bf_set_ui(T, 1);
+ res = bf_cmpu(a, T);
+ bf_delete(T);
+ if (res > 0) {
+ bf_set_nan(r);
+ return BF_ST_INVALID_OP;
+ } else if (res == 0 && a->sign == 0) {
+ bf_set_zero(r, 0);
+ return 0;
+ }
+
+ return bf_ziv_rounding(r, a, prec, flags, bf_asin_internal, (void *)TRUE);
+}
+
+/***************************************************************/
+/* decimal floating point numbers */
+
+#ifdef USE_BF_DEC
+
+#define adddq(r1, r0, a1, a0) \
+ do { \
+ limb_t __t = r0; \
+ r0 += (a0); \
+ r1 += (a1) + (r0 < __t); \
+ } while (0)
+
+#define subdq(r1, r0, a1, a0) \
+ do { \
+ limb_t __t = r0; \
+ r0 -= (a0); \
+ r1 -= (a1) + (r0 > __t); \
+ } while (0)
+
+#if LIMB_BITS == 64
+
+/* Note: we assume __int128 is available */
+#define muldq(r1, r0, a, b) \
+ do { \
+ unsigned __int128 __t; \
+ __t = (unsigned __int128)(a) * (unsigned __int128)(b); \
+ r0 = __t; \
+ r1 = __t >> 64; \
+ } while (0)
+
+#define divdq(q, r, a1, a0, b) \
+ do { \
+ unsigned __int128 __t; \
+ limb_t __b = (b); \
+ __t = ((unsigned __int128)(a1) << 64) | (a0); \
+ q = __t / __b; \
+ r = __t % __b; \
+ } while (0)
+
+#else
+
+#define muldq(r1, r0, a, b) \
+ do { \
+ uint64_t __t; \
+ __t = (uint64_t)(a) * (uint64_t)(b); \
+ r0 = __t; \
+ r1 = __t >> 32; \
+ } while (0)
+
+#define divdq(q, r, a1, a0, b) \
+ do { \
+ uint64_t __t; \
+ limb_t __b = (b); \
+ __t = ((uint64_t)(a1) << 32) | (a0); \
+ q = __t / __b; \
+ r = __t % __b; \
+ } while (0)
+
+#endif /* LIMB_BITS != 64 */
+
+#if LIMB_DIGITS == 19
+
+/* WARNING: hardcoded for b = 1e19. It is assumed that:
+ 0 <= a1 < 2^63 */
+#define divdq_base(q, r, a1, a0)\
+do {\
+ uint64_t __a0, __a1, __t0, __t1, __b = BF_DEC_BASE; \
+ __a0 = a0;\
+ __a1 = a1;\
+ __t0 = __a1;\
+ __t0 = shld(__t0, __a0, 1);\
+ muldq(q, __t1, __t0, UINT64_C(17014118346046923173)); \
+ muldq(__t1, __t0, q, __b);\
+ subdq(__a1, __a0, __t1, __t0);\
+ subdq(__a1, __a0, 1, __b * 2); \
+ __t0 = (slimb_t)__a1 >> 1; \
+ q += 2 + __t0;\
+ adddq(__a1, __a0, 0, __b & __t0);\
+ q += __a1; \
+ __a0 += __b & __a1; \
+ r = __a0;\
+} while(0)
+
+#elif LIMB_DIGITS == 9
+
+/* WARNING: hardcoded for b = 1e9. It is assumed that:
+ 0 <= a1 < 2^29 */
+#define divdq_base(q, r, a1, a0)\
+do {\
+ uint32_t __t0, __t1, __b = BF_DEC_BASE; \
+ __t0 = a1;\
+ __t1 = a0;\
+ __t0 = (__t0 << 3) | (__t1 >> (32 - 3)); \
+ muldq(q, __t1, __t0, 2305843009U);\
+ r = a0 - q * __b;\
+ __t1 = (r >= __b);\
+ q += __t1;\
+ if (__t1)\
+ r -= __b;\
+} while(0)
+
+#endif
+
+/* fast integer division by a fixed constant */
+
+typedef struct FastDivData {
+ limb_t m1; /* multiplier */
+ int8_t shift1;
+ int8_t shift2;
+} FastDivData;
+
+/* From "Division by Invariant Integers using Multiplication" by
+ Torborn Granlund and Peter L. Montgomery */
+/* d must be != 0 */
+static inline __maybe_unused void fast_udiv_init(FastDivData *s, limb_t d)
+{
+ int l;
+ limb_t q, r, m1;
+ if (d == 1)
+ l = 0;
+ else
+ l = 64 - clz64(d - 1);
+ divdq(q, r, ((limb_t)1 << l) - d, 0, d);
+ (void)r;
+ m1 = q + 1;
+ // printf("d=%lu l=%d m1=0x%016lx\n", d, l, m1);
+ s->m1 = m1;
+ s->shift1 = l;
+ if (s->shift1 > 1)
+ s->shift1 = 1;
+ s->shift2 = l - 1;
+ if (s->shift2 < 0)
+ s->shift2 = 0;
+}
+
+static inline limb_t fast_udiv(limb_t a, const FastDivData *s)
+{
+ limb_t t0, t1;
+ muldq(t1, t0, s->m1, a);
+ t0 = (a - t1) >> s->shift1;
+ return (t1 + t0) >> s->shift2;
+}
+
+/* contains 10^i */
+const limb_t mp_pow_dec[LIMB_DIGITS + 1] = {
+ 1U,
+ 10U,
+ 100U,
+ 1000U,
+ 10000U,
+ 100000U,
+ 1000000U,
+ 10000000U,
+ 100000000U,
+ 1000000000U,
+#if LIMB_BITS == 64
+ 10000000000U,
+ 100000000000U,
+ 1000000000000U,
+ 10000000000000U,
+ 100000000000000U,
+ 1000000000000000U,
+ 10000000000000000U,
+ 100000000000000000U,
+ 1000000000000000000U,
+ 10000000000000000000U,
+#endif
+};
+
+/* precomputed from fast_udiv_init(10^i) */
+static const FastDivData mp_pow_div[LIMB_DIGITS + 1] = {
+#if LIMB_BITS == 32
+ { 0x00000001, 0, 0 },
+ { 0x9999999a, 1, 3 },
+ { 0x47ae147b, 1, 6 },
+ { 0x0624dd30, 1, 9 },
+ { 0xa36e2eb2, 1, 13 },
+ { 0x4f8b588f, 1, 16 },
+ { 0x0c6f7a0c, 1, 19 },
+ { 0xad7f29ac, 1, 23 },
+ { 0x5798ee24, 1, 26 },
+ { 0x12e0be83, 1, 29 },
+#else
+ { 0x0000000000000001, 0, 0 },
+ { 0x999999999999999a, 1, 3 },
+ { 0x47ae147ae147ae15, 1, 6 },
+ { 0x0624dd2f1a9fbe77, 1, 9 },
+ { 0xa36e2eb1c432ca58, 1, 13 },
+ { 0x4f8b588e368f0847, 1, 16 },
+ { 0x0c6f7a0b5ed8d36c, 1, 19 },
+ { 0xad7f29abcaf48579, 1, 23 },
+ { 0x5798ee2308c39dfa, 1, 26 },
+ { 0x12e0be826d694b2f, 1, 29 },
+ { 0xb7cdfd9d7bdbab7e, 1, 33 },
+ { 0x5fd7fe17964955fe, 1, 36 },
+ { 0x19799812dea11198, 1, 39 },
+ { 0xc25c268497681c27, 1, 43 },
+ { 0x6849b86a12b9b01f, 1, 46 },
+ { 0x203af9ee756159b3, 1, 49 },
+ { 0xcd2b297d889bc2b7, 1, 53 },
+ { 0x70ef54646d496893, 1, 56 },
+ { 0x2725dd1d243aba0f, 1, 59 },
+ { 0xd83c94fb6d2ac34d, 1, 63 },
+#endif
+};
+
+/* divide by 10^shift with 0 <= shift <= LIMB_DIGITS */
+static inline limb_t fast_shr_dec(limb_t a, int shift)
+{
+ return fast_udiv(a, &mp_pow_div[shift]);
+}
+
+/* division and remainder by 10^shift */
+#define fast_shr_rem_dec(q, r, a, shift) q = fast_shr_dec(a, shift), r = a - q * mp_pow_dec[shift]
+
+limb_t mp_add_dec(limb_t *res, const limb_t *op1, const limb_t *op2,
+ mp_size_t n, limb_t carry)
+{
+ limb_t base = BF_DEC_BASE;
+ mp_size_t i;
+ limb_t k, a, v;
+
+ k=carry;
+ for(i=0;i<n;i++) {
+ /* XXX: reuse the trick in add_mod */
+ v = op1[i];
+ a = v + op2[i] + k - base;
+ k = a <= v;
+ if (!k)
+ a += base;
+ res[i]=a;
+ }
+ return k;
+}
+
+limb_t mp_add_ui_dec(limb_t *tab, limb_t b, mp_size_t n)
+{
+ limb_t base = BF_DEC_BASE;
+ mp_size_t i;
+ limb_t k, a, v;
+
+ k=b;
+ for(i=0;i<n;i++) {
+ v = tab[i];
+ a = v + k - base;
+ k = a <= v;
+ if (!k)
+ a += base;
+ tab[i] = a;
+ if (k == 0)
+ break;
+ }
+ return k;
+}
+
+limb_t mp_sub_dec(limb_t *res, const limb_t *op1, const limb_t *op2,
+ mp_size_t n, limb_t carry)
+{
+ limb_t base = BF_DEC_BASE;
+ mp_size_t i;
+ limb_t k, v, a;
+
+ k=carry;
+ for(i=0;i<n;i++) {
+ v = op1[i];
+ a = v - op2[i] - k;
+ k = a > v;
+ if (k)
+ a += base;
+ res[i] = a;
+ }
+ return k;
+}
+
+limb_t mp_sub_ui_dec(limb_t *tab, limb_t b, mp_size_t n)
+{
+ limb_t base = BF_DEC_BASE;
+ mp_size_t i;
+ limb_t k, v, a;
+
+ k=b;
+ for(i=0;i<n;i++) {
+ v = tab[i];
+ a = v - k;
+ k = a > v;
+ if (k)
+ a += base;
+ tab[i]=a;
+ if (k == 0)
+ break;
+ }
+ return k;
+}
+
+/* taba[] = taba[] * b + l. 0 <= b, l <= base - 1. Return the high carry */
+limb_t mp_mul1_dec(limb_t *tabr, const limb_t *taba, mp_size_t n,
+ limb_t b, limb_t l)
+{
+ mp_size_t i;
+ limb_t t0, t1, r;
+
+ for(i = 0; i < n; i++) {
+ muldq(t1, t0, taba[i], b);
+ adddq(t1, t0, 0, l);
+ divdq_base(l, r, t1, t0);
+ tabr[i] = r;
+ }
+ return l;
+}
+
+/* tabr[] += taba[] * b. 0 <= b <= base - 1. Return the value to add
+ to the high word */
+limb_t mp_add_mul1_dec(limb_t *tabr, const limb_t *taba, mp_size_t n,
+ limb_t b)
+{
+ mp_size_t i;
+ limb_t l, t0, t1, r;
+
+ l = 0;
+ for(i = 0; i < n; i++) {
+ muldq(t1, t0, taba[i], b);
+ adddq(t1, t0, 0, l);
+ adddq(t1, t0, 0, tabr[i]);
+ divdq_base(l, r, t1, t0);
+ tabr[i] = r;
+ }
+ return l;
+}
+
+/* tabr[] -= taba[] * b. 0 <= b <= base - 1. Return the value to
+ substract to the high word. */
+limb_t mp_sub_mul1_dec(limb_t *tabr, const limb_t *taba, mp_size_t n,
+ limb_t b)
+{
+ limb_t base = BF_DEC_BASE;
+ mp_size_t i;
+ limb_t l, t0, t1, r, a, v, c;
+
+ /* XXX: optimize */
+ l = 0;
+ for(i = 0; i < n; i++) {
+ muldq(t1, t0, taba[i], b);
+ adddq(t1, t0, 0, l);
+ divdq_base(l, r, t1, t0);
+ v = tabr[i];
+ a = v - r;
+ c = a > v;
+ if (c)
+ a += base;
+ /* never bigger than base because r = 0 when l = base - 1 */
+ l += c;
+ tabr[i] = a;
+ }
+ return l;
+}
+
+/* size of the result : op1_size + op2_size. */
+void mp_mul_basecase_dec(limb_t *result,
+ const limb_t *op1, mp_size_t op1_size,
+ const limb_t *op2, mp_size_t op2_size)
+{
+ mp_size_t i;
+ limb_t r;
+
+ result[op1_size] = mp_mul1_dec(result, op1, op1_size, op2[0], 0);
+
+ for(i=1;i<op2_size;i++) {
+ r = mp_add_mul1_dec(result + i, op1, op1_size, op2[i]);
+ result[i + op1_size] = r;
+ }
+}
+
+/* taba[] = (taba[] + r*base^na) / b. 0 <= b < base. 0 <= r <
+ b. Return the remainder. */
+limb_t mp_div1_dec(limb_t *tabr, const limb_t *taba, mp_size_t na,
+ limb_t b, limb_t r)
+{
+ limb_t base = BF_DEC_BASE;
+ mp_size_t i;
+ limb_t t0, t1, q;
+ int shift;
+
+#if (BF_DEC_BASE % 2) == 0
+ if (b == 2) {
+ limb_t base_div2;
+ /* Note: only works if base is even */
+ base_div2 = base >> 1;
+ if (r)
+ r = base_div2;
+ for(i = na - 1; i >= 0; i--) {
+ t0 = taba[i];
+ tabr[i] = (t0 >> 1) + r;
+ r = 0;
+ if (t0 & 1)
+ r = base_div2;
+ }
+ if (r)
+ r = 1;
+ } else
+#endif
+ if (na >= UDIV1NORM_THRESHOLD) {
+ shift = clz(b);
+ if (shift == 0) {
+ /* normalized case: b >= 2^(LIMB_BITS-1) */
+ limb_t b_inv;
+ b_inv = udiv1norm_init(b);
+ for(i = na - 1; i >= 0; i--) {
+ muldq(t1, t0, r, base);
+ adddq(t1, t0, 0, taba[i]);
+ q = udiv1norm(&r, t1, t0, b, b_inv);
+ tabr[i] = q;
+ }
+ } else {
+ limb_t b_inv;
+ b <<= shift;
+ b_inv = udiv1norm_init(b);
+ for(i = na - 1; i >= 0; i--) {
+ muldq(t1, t0, r, base);
+ adddq(t1, t0, 0, taba[i]);
+ t1 = (t1 << shift) | (t0 >> (LIMB_BITS - shift));
+ t0 <<= shift;
+ q = udiv1norm(&r, t1, t0, b, b_inv);
+ r >>= shift;
+ tabr[i] = q;
+ }
+ }
+ } else {
+ for(i = na - 1; i >= 0; i--) {
+ muldq(t1, t0, r, base);
+ adddq(t1, t0, 0, taba[i]);
+ divdq(q, r, t1, t0, b);
+ tabr[i] = q;
+ }
+ }
+ return r;
+}
+
+static __maybe_unused void mp_print_str_dec(const char *str,
+ const limb_t *tab, slimb_t n)
+{
+ slimb_t i;
+ printf("%s=", str);
+ for(i = n - 1; i >= 0; i--) {
+ if (i != n - 1)
+ printf("_");
+ printf("%0*" PRIu_LIMB, LIMB_DIGITS, tab[i]);
+ }
+ printf("\n");
+}
+
+static __maybe_unused void mp_print_str_h_dec(const char *str,
+ const limb_t *tab, slimb_t n,
+ limb_t high)
+{
+ slimb_t i;
+ printf("%s=", str);
+ printf("%0*" PRIu_LIMB, LIMB_DIGITS, high);
+ for(i = n - 1; i >= 0; i--) {
+ printf("_");
+ printf("%0*" PRIu_LIMB, LIMB_DIGITS, tab[i]);
+ }
+ printf("\n");
+}
+
+//#define DEBUG_DIV_SLOW
+
+#define DIV_STATIC_ALLOC_LEN 16
+
+/* return q = a / b and r = a % b.
+
+ taba[na] must be allocated if tabb1[nb - 1] < B / 2. tabb1[nb - 1]
+ must be != zero. na must be >= nb. 's' can be NULL if tabb1[nb - 1]
+ >= B / 2.
+
+ The remainder is is returned in taba and contains nb libms. tabq
+ contains na - nb + 1 limbs. No overlap is permitted.
+
+ Running time of the standard method: (na - nb + 1) * nb
+ Return 0 if OK, -1 if memory alloc error
+*/
+/* XXX: optimize */
+static int mp_div_dec(bf_context_t *s, limb_t *tabq,
+ limb_t *taba, mp_size_t na,
+ const limb_t *tabb1, mp_size_t nb)
+{
+ limb_t base = BF_DEC_BASE;
+ limb_t r, mult, t0, t1, a, c, q, v, *tabb;
+ mp_size_t i, j;
+ limb_t static_tabb[DIV_STATIC_ALLOC_LEN];
+
+#ifdef DEBUG_DIV_SLOW
+ mp_print_str_dec("a", taba, na);
+ mp_print_str_dec("b", tabb1, nb);
+#endif
+
+ /* normalize tabb */
+ r = tabb1[nb - 1];
+ assert(r != 0);
+ i = na - nb;
+ if (r >= BF_DEC_BASE / 2) {
+ mult = 1;
+ tabb = (limb_t *)tabb1;
+ q = 1;
+ for(j = nb - 1; j >= 0; j--) {
+ if (taba[i + j] != tabb[j]) {
+ if (taba[i + j] < tabb[j])
+ q = 0;
+ break;
+ }
+ }
+ tabq[i] = q;
+ if (q) {
+ mp_sub_dec(taba + i, taba + i, tabb, nb, 0);
+ }
+ i--;
+ } else {
+ mult = base / (r + 1);
+ if (likely(nb <= DIV_STATIC_ALLOC_LEN)) {
+ tabb = static_tabb;
+ } else {
+ tabb = bf_malloc(s, sizeof(limb_t) * nb);
+ if (!tabb)
+ return -1;
+ }
+ mp_mul1_dec(tabb, tabb1, nb, mult, 0);
+ taba[na] = mp_mul1_dec(taba, taba, na, mult, 0);
+ }
+
+#ifdef DEBUG_DIV_SLOW
+ printf("mult=" FMT_LIMB "\n", mult);
+ mp_print_str_dec("a_norm", taba, na + 1);
+ mp_print_str_dec("b_norm", tabb, nb);
+#endif
+
+ for(; i >= 0; i--) {
+ if (unlikely(taba[i + nb] >= tabb[nb - 1])) {
+ /* XXX: check if it is really possible */
+ q = base - 1;
+ } else {
+ muldq(t1, t0, taba[i + nb], base);
+ adddq(t1, t0, 0, taba[i + nb - 1]);
+ divdq(q, r, t1, t0, tabb[nb - 1]);
+ }
+ // printf("i=%d q1=%ld\n", i, q);
+
+ r = mp_sub_mul1_dec(taba + i, tabb, nb, q);
+ // mp_dump("r1", taba + i, nb, bd);
+ // printf("r2=%ld\n", r);
+
+ v = taba[i + nb];
+ a = v - r;
+ c = a > v;
+ if (c)
+ a += base;
+ taba[i + nb] = a;
+
+ if (c != 0) {
+ /* negative result */
+ for(;;) {
+ q--;
+ c = mp_add_dec(taba + i, taba + i, tabb, nb, 0);
+ /* propagate carry and test if positive result */
+ if (c != 0) {
+ if (++taba[i + nb] == base) {
+ break;
+ }
+ }
+ }
+ }
+ tabq[i] = q;
+ }
+
+#ifdef DEBUG_DIV_SLOW
+ mp_print_str_dec("q", tabq, na - nb + 1);
+ mp_print_str_dec("r", taba, nb);
+#endif
+
+ /* remove the normalization */
+ if (mult != 1) {
+ mp_div1_dec(taba, taba, nb, mult, 0);
+ if (unlikely(tabb != static_tabb))
+ bf_free(s, tabb);
+ }
+ return 0;
+}
+
+/* divide by 10^shift */
+static limb_t mp_shr_dec(limb_t *tab_r, const limb_t *tab, mp_size_t n,
+ limb_t shift, limb_t high)
+{
+ mp_size_t i;
+ limb_t l, a, q, r;
+
+ assert(shift >= 1 && shift < LIMB_DIGITS);
+ l = high;
+ for(i = n - 1; i >= 0; i--) {
+ a = tab[i];
+ fast_shr_rem_dec(q, r, a, shift);
+ tab_r[i] = q + l * mp_pow_dec[LIMB_DIGITS - shift];
+ l = r;
+ }
+ return l;
+}
+
+/* multiply by 10^shift */
+static limb_t mp_shl_dec(limb_t *tab_r, const limb_t *tab, mp_size_t n,
+ limb_t shift, limb_t low)
+{
+ mp_size_t i;
+ limb_t l, a, q, r;
+
+ assert(shift >= 1 && shift < LIMB_DIGITS);
+ l = low;
+ for(i = 0; i < n; i++) {
+ a = tab[i];
+ fast_shr_rem_dec(q, r, a, LIMB_DIGITS - shift);
+ tab_r[i] = r * mp_pow_dec[shift] + l;
+ l = q;
+ }
+ return l;
+}
+
+static limb_t mp_sqrtrem2_dec(limb_t *tabs, limb_t *taba)
+{
+ int k;
+ dlimb_t a, b, r;
+ limb_t taba1[2], s, r0, r1;
+
+ /* convert to binary and normalize */
+ a = (dlimb_t)taba[1] * BF_DEC_BASE + taba[0];
+ k = clz(a >> LIMB_BITS) & ~1;
+ b = a << k;
+ taba1[0] = b;
+ taba1[1] = b >> LIMB_BITS;
+ mp_sqrtrem2(&s, taba1);
+ s >>= (k >> 1);
+ /* convert the remainder back to decimal */
+ r = a - (dlimb_t)s * (dlimb_t)s;
+ divdq_base(r1, r0, r >> LIMB_BITS, r);
+ taba[0] = r0;
+ tabs[0] = s;
+ return r1;
+}
+
+//#define DEBUG_SQRTREM_DEC
+
+/* tmp_buf must contain (n / 2 + 1 limbs) */
+static limb_t mp_sqrtrem_rec_dec(limb_t *tabs, limb_t *taba, limb_t n,
+ limb_t *tmp_buf)
+{
+ limb_t l, h, rh, ql, qh, c, i;
+
+ if (n == 1)
+ return mp_sqrtrem2_dec(tabs, taba);
+#ifdef DEBUG_SQRTREM_DEC
+ mp_print_str_dec("a", taba, 2 * n);
+#endif
+ l = n / 2;
+ h = n - l;
+ qh = mp_sqrtrem_rec_dec(tabs + l, taba + 2 * l, h, tmp_buf);
+#ifdef DEBUG_SQRTREM_DEC
+ mp_print_str_dec("s1", tabs + l, h);
+ mp_print_str_h_dec("r1", taba + 2 * l, h, qh);
+ mp_print_str_h_dec("r2", taba + l, n, qh);
+#endif
+
+ /* the remainder is in taba + 2 * l. Its high bit is in qh */
+ if (qh) {
+ mp_sub_dec(taba + 2 * l, taba + 2 * l, tabs + l, h, 0);
+ }
+ /* instead of dividing by 2*s, divide by s (which is normalized)
+ and update q and r */
+ mp_div_dec(NULL, tmp_buf, taba + l, n, tabs + l, h);
+ qh += tmp_buf[l];
+ for(i = 0; i < l; i++)
+ tabs[i] = tmp_buf[i];
+ ql = mp_div1_dec(tabs, tabs, l, 2, qh & 1);
+ qh = qh >> 1; /* 0 or 1 */
+ if (ql)
+ rh = mp_add_dec(taba + l, taba + l, tabs + l, h, 0);
+ else
+ rh = 0;
+#ifdef DEBUG_SQRTREM_DEC
+ mp_print_str_h_dec("q", tabs, l, qh);
+ mp_print_str_h_dec("u", taba + l, h, rh);
+#endif
+
+ mp_add_ui_dec(tabs + l, qh, h);
+#ifdef DEBUG_SQRTREM_DEC
+ mp_print_str_dec("s2", tabs, n);
+#endif
+
+ /* q = qh, tabs[l - 1 ... 0], r = taba[n - 1 ... l] */
+ /* subtract q^2. if qh = 1 then q = B^l, so we can take shortcuts */
+ if (qh) {
+ c = qh;
+ } else {
+ mp_mul_basecase_dec(taba + n, tabs, l, tabs, l);
+ c = mp_sub_dec(taba, taba, taba + n, 2 * l, 0);
+ }
+ rh -= mp_sub_ui_dec(taba + 2 * l, c, n - 2 * l);
+ if ((slimb_t)rh < 0) {
+ mp_sub_ui_dec(tabs, 1, n);
+ rh += mp_add_mul1_dec(taba, tabs, n, 2);
+ rh += mp_add_ui_dec(taba, 1, n);
+ }
+ return rh;
+}
+
+/* 'taba' has 2*n limbs with n >= 1 and taba[2*n-1] >= B/4. Return (s,
+ r) with s=floor(sqrt(a)) and r=a-s^2. 0 <= r <= 2 * s. tabs has n
+ limbs. r is returned in the lower n limbs of taba. Its r[n] is the
+ returned value of the function. */
+int mp_sqrtrem_dec(bf_context_t *s, limb_t *tabs, limb_t *taba, limb_t n)
+{
+ limb_t tmp_buf1[8];
+ limb_t *tmp_buf;
+ mp_size_t n2;
+ n2 = n / 2 + 1;
+ if (n2 <= countof(tmp_buf1)) {
+ tmp_buf = tmp_buf1;
+ } else {
+ tmp_buf = bf_malloc(s, sizeof(limb_t) * n2);
+ if (!tmp_buf)
+ return -1;
+ }
+ taba[n] = mp_sqrtrem_rec_dec(tabs, taba, n, tmp_buf);
+ if (tmp_buf != tmp_buf1)
+ bf_free(s, tmp_buf);
+ return 0;
+}
+
+/* return the number of leading zero digits, from 0 to LIMB_DIGITS */
+static int clz_dec(limb_t a)
+{
+ if (a == 0)
+ return LIMB_DIGITS;
+ switch(LIMB_BITS - 1 - clz(a)) {
+ case 0: /* 1-1 */
+ return LIMB_DIGITS - 1;
+ case 1: /* 2-3 */
+ return LIMB_DIGITS - 1;
+ case 2: /* 4-7 */
+ return LIMB_DIGITS - 1;
+ case 3: /* 8-15 */
+ if (a < 10)
+ return LIMB_DIGITS - 1;
+ else
+ return LIMB_DIGITS - 2;
+ case 4: /* 16-31 */
+ return LIMB_DIGITS - 2;
+ case 5: /* 32-63 */
+ return LIMB_DIGITS - 2;
+ case 6: /* 64-127 */
+ if (a < 100)
+ return LIMB_DIGITS - 2;
+ else
+ return LIMB_DIGITS - 3;
+ case 7: /* 128-255 */
+ return LIMB_DIGITS - 3;
+ case 8: /* 256-511 */
+ return LIMB_DIGITS - 3;
+ case 9: /* 512-1023 */
+ if (a < 1000)
+ return LIMB_DIGITS - 3;
+ else
+ return LIMB_DIGITS - 4;
+ case 10: /* 1024-2047 */
+ return LIMB_DIGITS - 4;
+ case 11: /* 2048-4095 */
+ return LIMB_DIGITS - 4;
+ case 12: /* 4096-8191 */
+ return LIMB_DIGITS - 4;
+ case 13: /* 8192-16383 */
+ if (a < 10000)
+ return LIMB_DIGITS - 4;
+ else
+ return LIMB_DIGITS - 5;
+ case 14: /* 16384-32767 */
+ return LIMB_DIGITS - 5;
+ case 15: /* 32768-65535 */
+ return LIMB_DIGITS - 5;
+ case 16: /* 65536-131071 */
+ if (a < 100000)
+ return LIMB_DIGITS - 5;
+ else
+ return LIMB_DIGITS - 6;
+ case 17: /* 131072-262143 */
+ return LIMB_DIGITS - 6;
+ case 18: /* 262144-524287 */
+ return LIMB_DIGITS - 6;
+ case 19: /* 524288-1048575 */
+ if (a < 1000000)
+ return LIMB_DIGITS - 6;
+ else
+ return LIMB_DIGITS - 7;
+ case 20: /* 1048576-2097151 */
+ return LIMB_DIGITS - 7;
+ case 21: /* 2097152-4194303 */
+ return LIMB_DIGITS - 7;
+ case 22: /* 4194304-8388607 */
+ return LIMB_DIGITS - 7;
+ case 23: /* 8388608-16777215 */
+ if (a < 10000000)
+ return LIMB_DIGITS - 7;
+ else
+ return LIMB_DIGITS - 8;
+ case 24: /* 16777216-33554431 */
+ return LIMB_DIGITS - 8;
+ case 25: /* 33554432-67108863 */
+ return LIMB_DIGITS - 8;
+ case 26: /* 67108864-134217727 */
+ if (a < 100000000)
+ return LIMB_DIGITS - 8;
+ else
+ return LIMB_DIGITS - 9;
+#if LIMB_BITS == 64
+ case 27: /* 134217728-268435455 */
+ return LIMB_DIGITS - 9;
+ case 28: /* 268435456-536870911 */
+ return LIMB_DIGITS - 9;
+ case 29: /* 536870912-1073741823 */
+ if (a < 1000000000)
+ return LIMB_DIGITS - 9;
+ else
+ return LIMB_DIGITS - 10;
+ case 30: /* 1073741824-2147483647 */
+ return LIMB_DIGITS - 10;
+ case 31: /* 2147483648-4294967295 */
+ return LIMB_DIGITS - 10;
+ case 32: /* 4294967296-8589934591 */
+ return LIMB_DIGITS - 10;
+ case 33: /* 8589934592-17179869183 */
+ if (a < 10000000000)
+ return LIMB_DIGITS - 10;
+ else
+ return LIMB_DIGITS - 11;
+ case 34: /* 17179869184-34359738367 */
+ return LIMB_DIGITS - 11;
+ case 35: /* 34359738368-68719476735 */
+ return LIMB_DIGITS - 11;
+ case 36: /* 68719476736-137438953471 */
+ if (a < 100000000000)
+ return LIMB_DIGITS - 11;
+ else
+ return LIMB_DIGITS - 12;
+ case 37: /* 137438953472-274877906943 */
+ return LIMB_DIGITS - 12;
+ case 38: /* 274877906944-549755813887 */
+ return LIMB_DIGITS - 12;
+ case 39: /* 549755813888-1099511627775 */
+ if (a < 1000000000000)
+ return LIMB_DIGITS - 12;
+ else
+ return LIMB_DIGITS - 13;
+ case 40: /* 1099511627776-2199023255551 */
+ return LIMB_DIGITS - 13;
+ case 41: /* 2199023255552-4398046511103 */
+ return LIMB_DIGITS - 13;
+ case 42: /* 4398046511104-8796093022207 */
+ return LIMB_DIGITS - 13;
+ case 43: /* 8796093022208-17592186044415 */
+ if (a < 10000000000000)
+ return LIMB_DIGITS - 13;
+ else
+ return LIMB_DIGITS - 14;
+ case 44: /* 17592186044416-35184372088831 */
+ return LIMB_DIGITS - 14;
+ case 45: /* 35184372088832-70368744177663 */
+ return LIMB_DIGITS - 14;
+ case 46: /* 70368744177664-140737488355327 */
+ if (a < 100000000000000)
+ return LIMB_DIGITS - 14;
+ else
+ return LIMB_DIGITS - 15;
+ case 47: /* 140737488355328-281474976710655 */
+ return LIMB_DIGITS - 15;
+ case 48: /* 281474976710656-562949953421311 */
+ return LIMB_DIGITS - 15;
+ case 49: /* 562949953421312-1125899906842623 */
+ if (a < 1000000000000000)
+ return LIMB_DIGITS - 15;
+ else
+ return LIMB_DIGITS - 16;
+ case 50: /* 1125899906842624-2251799813685247 */
+ return LIMB_DIGITS - 16;
+ case 51: /* 2251799813685248-4503599627370495 */
+ return LIMB_DIGITS - 16;
+ case 52: /* 4503599627370496-9007199254740991 */
+ return LIMB_DIGITS - 16;
+ case 53: /* 9007199254740992-18014398509481983 */
+ if (a < 10000000000000000)
+ return LIMB_DIGITS - 16;
+ else
+ return LIMB_DIGITS - 17;
+ case 54: /* 18014398509481984-36028797018963967 */
+ return LIMB_DIGITS - 17;
+ case 55: /* 36028797018963968-72057594037927935 */
+ return LIMB_DIGITS - 17;
+ case 56: /* 72057594037927936-144115188075855871 */
+ if (a < 100000000000000000)
+ return LIMB_DIGITS - 17;
+ else
+ return LIMB_DIGITS - 18;
+ case 57: /* 144115188075855872-288230376151711743 */
+ return LIMB_DIGITS - 18;
+ case 58: /* 288230376151711744-576460752303423487 */
+ return LIMB_DIGITS - 18;
+ case 59: /* 576460752303423488-1152921504606846975 */
+ if (a < 1000000000000000000)
+ return LIMB_DIGITS - 18;
+ else
+ return LIMB_DIGITS - 19;
+#endif
+ default:
+ return 0;
+ }
+}
+
+/* for debugging */
+void bfdec_print_str(const char *str, const bfdec_t *a)
+{
+ slimb_t i;
+ printf("%s=", str);
+
+ if (a->expn == BF_EXP_NAN) {
+ printf("NaN");
+ } else {
+ if (a->sign)
+ putchar('-');
+ if (a->expn == BF_EXP_ZERO) {
+ putchar('0');
+ } else if (a->expn == BF_EXP_INF) {
+ printf("Inf");
+ } else {
+ printf("0.");
+ for(i = a->len - 1; i >= 0; i--)
+ printf("%0*" PRIu_LIMB, LIMB_DIGITS, a->tab[i]);
+ printf("e%" PRId_LIMB, a->expn);
+ }
+ }
+ printf("\n");
+}
+
+/* return != 0 if one digit between 0 and bit_pos inclusive is not zero. */
+static inline limb_t scan_digit_nz(const bfdec_t *r, slimb_t bit_pos)
+{
+ slimb_t pos;
+ limb_t v, q;
+ int shift;
+
+ if (bit_pos < 0)
+ return 0;
+ pos = (limb_t)bit_pos / LIMB_DIGITS;
+ shift = (limb_t)bit_pos % LIMB_DIGITS;
+ fast_shr_rem_dec(q, v, r->tab[pos], shift + 1);
+ (void)q;
+ if (v != 0)
+ return 1;
+ pos--;
+ while (pos >= 0) {
+ if (r->tab[pos] != 0)
+ return 1;
+ pos--;
+ }
+ return 0;
+}
+
+static limb_t get_digit(const limb_t *tab, limb_t len, slimb_t pos)
+{
+ slimb_t i;
+ int shift;
+ i = floor_div(pos, LIMB_DIGITS);
+ if (i < 0 || i >= len)
+ return 0;
+ shift = pos - i * LIMB_DIGITS;
+ return fast_shr_dec(tab[i], shift) % 10;
+}
+
+#if 0
+static limb_t get_digits(const limb_t *tab, limb_t len, slimb_t pos)
+{
+ limb_t a0, a1;
+ int shift;
+ slimb_t i;
+
+ i = floor_div(pos, LIMB_DIGITS);
+ shift = pos - i * LIMB_DIGITS;
+ if (i >= 0 && i < len)
+ a0 = tab[i];
+ else
+ a0 = 0;
+ if (shift == 0) {
+ return a0;
+ } else {
+ i++;
+ if (i >= 0 && i < len)
+ a1 = tab[i];
+ else
+ a1 = 0;
+ return fast_shr_dec(a0, shift) +
+ fast_urem(a1, &mp_pow_div[LIMB_DIGITS - shift]) *
+ mp_pow_dec[shift];
+ }
+}
+#endif
+
+/* return the addend for rounding. Note that prec can be <= 0 for bf_rint() */
+static int bfdec_get_rnd_add(int *pret, const bfdec_t *r, limb_t l,
+ slimb_t prec, int rnd_mode)
+{
+ int add_one, inexact;
+ limb_t digit1, digit0;
+
+ // bfdec_print_str("get_rnd_add", r);
+ if (rnd_mode == BF_RNDF) {
+ digit0 = 1; /* faithful rounding does not honor the INEXACT flag */
+ } else {
+ /* starting limb for bit 'prec + 1' */
+ digit0 = scan_digit_nz(r, l * LIMB_DIGITS - 1 - bf_max(0, prec + 1));
+ }
+
+ /* get the digit at 'prec' */
+ digit1 = get_digit(r->tab, l, l * LIMB_DIGITS - 1 - prec);
+ inexact = (digit1 | digit0) != 0;
+
+ add_one = 0;
+ switch(rnd_mode) {
+ case BF_RNDZ:
+ break;
+ case BF_RNDN:
+ if (digit1 == 5) {
+ if (digit0) {
+ add_one = 1;
+ } else {
+ /* round to even */
+ add_one =
+ get_digit(r->tab, l, l * LIMB_DIGITS - 1 - (prec - 1)) & 1;
+ }
+ } else if (digit1 > 5) {
+ add_one = 1;
+ }
+ break;
+ case BF_RNDD:
+ case BF_RNDU:
+ if (r->sign == (rnd_mode == BF_RNDD))
+ add_one = inexact;
+ break;
+ case BF_RNDNA:
+ case BF_RNDF:
+ add_one = (digit1 >= 5);
+ break;
+ case BF_RNDA:
+ add_one = inexact;
+ break;
+ default:
+ abort();
+ }
+
+ if (inexact)
+ *pret |= BF_ST_INEXACT;
+ return add_one;
+}
+
+/* round to prec1 bits assuming 'r' is non zero and finite. 'r' is
+ assumed to have length 'l' (1 <= l <= r->len). prec1 can be
+ BF_PREC_INF. BF_FLAG_SUBNORMAL is not supported. Cannot fail with
+ BF_ST_MEM_ERROR.
+ */
+static int __bfdec_round(bfdec_t *r, limb_t prec1, bf_flags_t flags, limb_t l)
+{
+ int shift, add_one, rnd_mode, ret;
+ slimb_t i, bit_pos, pos, e_min, e_max, e_range, prec;
+
+ /* XXX: align to IEEE 754 2008 for decimal numbers ? */
+ e_range = (limb_t)1 << (bf_get_exp_bits(flags) - 1);
+ e_min = -e_range + 3;
+ e_max = e_range;
+
+ if (flags & BF_FLAG_RADPNT_PREC) {
+ /* 'prec' is the precision after the decimal point */
+ if (prec1 != BF_PREC_INF)
+ prec = r->expn + prec1;
+ else
+ prec = prec1;
+ } else if (unlikely(r->expn < e_min) && (flags & BF_FLAG_SUBNORMAL)) {
+ /* restrict the precision in case of potentially subnormal
+ result */
+ assert(prec1 != BF_PREC_INF);
+ prec = prec1 - (e_min - r->expn);
+ } else {
+ prec = prec1;
+ }
+
+ /* round to prec bits */
+ rnd_mode = flags & BF_RND_MASK;
+ ret = 0;
+ add_one = bfdec_get_rnd_add(&ret, r, l, prec, rnd_mode);
+
+ if (prec <= 0) {
+ if (add_one) {
+ bfdec_resize(r, 1); /* cannot fail because r is non zero */
+ r->tab[0] = BF_DEC_BASE / 10;
+ r->expn += 1 - prec;
+ ret |= BF_ST_UNDERFLOW | BF_ST_INEXACT;
+ return ret;
+ } else {
+ goto underflow;
+ }
+ } else if (add_one) {
+ limb_t carry;
+
+ /* add one starting at digit 'prec - 1' */
+ bit_pos = l * LIMB_DIGITS - 1 - (prec - 1);
+ pos = bit_pos / LIMB_DIGITS;
+ carry = mp_pow_dec[bit_pos % LIMB_DIGITS];
+ carry = mp_add_ui_dec(r->tab + pos, carry, l - pos);
+ if (carry) {
+ /* shift right by one digit */
+ mp_shr_dec(r->tab + pos, r->tab + pos, l - pos, 1, 1);
+ r->expn++;
+ }
+ }
+
+ /* check underflow */
+ if (unlikely(r->expn < e_min)) {
+ if (flags & BF_FLAG_SUBNORMAL) {
+ /* if inexact, also set the underflow flag */
+ if (ret & BF_ST_INEXACT)
+ ret |= BF_ST_UNDERFLOW;
+ } else {
+ underflow:
+ bfdec_set_zero(r, r->sign);
+ ret |= BF_ST_UNDERFLOW | BF_ST_INEXACT;
+ return ret;
+ }
+ }
+
+ /* check overflow */
+ if (unlikely(r->expn > e_max)) {
+ bfdec_set_inf(r, r->sign);
+ ret |= BF_ST_OVERFLOW | BF_ST_INEXACT;
+ return ret;
+ }
+
+ /* keep the bits starting at 'prec - 1' */
+ bit_pos = l * LIMB_DIGITS - 1 - (prec - 1);
+ i = floor_div(bit_pos, LIMB_DIGITS);
+ if (i >= 0) {
+ shift = smod(bit_pos, LIMB_DIGITS);
+ if (shift != 0) {
+ r->tab[i] = fast_shr_dec(r->tab[i], shift) *
+ mp_pow_dec[shift];
+ }
+ } else {
+ i = 0;
+ }
+ /* remove trailing zeros */
+ while (r->tab[i] == 0)
+ i++;
+ if (i > 0) {
+ l -= i;
+ memmove(r->tab, r->tab + i, l * sizeof(limb_t));
+ }
+ bfdec_resize(r, l); /* cannot fail */
+ return ret;
+}
+
+/* Cannot fail with BF_ST_MEM_ERROR. */
+int bfdec_round(bfdec_t *r, limb_t prec, bf_flags_t flags)
+{
+ if (r->len == 0)
+ return 0;
+ return __bfdec_round(r, prec, flags, r->len);
+}
+
+/* 'r' must be a finite number. Cannot fail with BF_ST_MEM_ERROR. */
+int bfdec_normalize_and_round(bfdec_t *r, limb_t prec1, bf_flags_t flags)
+{
+ limb_t l, v;
+ int shift, ret;
+
+ // bfdec_print_str("bf_renorm", r);
+ l = r->len;
+ while (l > 0 && r->tab[l - 1] == 0)
+ l--;
+ if (l == 0) {
+ /* zero */
+ r->expn = BF_EXP_ZERO;
+ bfdec_resize(r, 0); /* cannot fail */
+ ret = 0;
+ } else {
+ r->expn -= (r->len - l) * LIMB_DIGITS;
+ /* shift to have the MSB set to '1' */
+ v = r->tab[l - 1];
+ shift = clz_dec(v);
+ if (shift != 0) {
+ mp_shl_dec(r->tab, r->tab, l, shift, 0);
+ r->expn -= shift;
+ }
+ ret = __bfdec_round(r, prec1, flags, l);
+ }
+ // bf_print_str("r_final", r);
+ return ret;
+}
+
+int bfdec_set_ui(bfdec_t *r, uint64_t v)
+{
+#if LIMB_BITS == 32
+ if (v >= BF_DEC_BASE * BF_DEC_BASE) {
+ if (bfdec_resize(r, 3))
+ goto fail;
+ r->tab[0] = v % BF_DEC_BASE;
+ v /= BF_DEC_BASE;
+ r->tab[1] = v % BF_DEC_BASE;
+ r->tab[2] = v / BF_DEC_BASE;
+ r->expn = 3 * LIMB_DIGITS;
+ } else
+#endif
+ if (v >= BF_DEC_BASE) {
+ if (bfdec_resize(r, 2))
+ goto fail;
+ r->tab[0] = v % BF_DEC_BASE;
+ r->tab[1] = v / BF_DEC_BASE;
+ r->expn = 2 * LIMB_DIGITS;
+ } else {
+ if (bfdec_resize(r, 1))
+ goto fail;
+ r->tab[0] = v;
+ r->expn = LIMB_DIGITS;
+ }
+ r->sign = 0;
+ return bfdec_normalize_and_round(r, BF_PREC_INF, 0);
+ fail:
+ bfdec_set_nan(r);
+ return BF_ST_MEM_ERROR;
+}
+
+int bfdec_set_si(bfdec_t *r, int64_t v)
+{
+ int ret;
+ if (v < 0) {
+ ret = bfdec_set_ui(r, -v);
+ r->sign = 1;
+ } else {
+ ret = bfdec_set_ui(r, v);
+ }
+ return ret;
+}
+
+static int bfdec_add_internal(bfdec_t *r, const bfdec_t *a, const bfdec_t *b, limb_t prec, bf_flags_t flags, int b_neg)
+{
+ bf_context_t *s = r->ctx;
+ int is_sub, cmp_res, a_sign, b_sign, ret;
+
+ a_sign = a->sign;
+ b_sign = b->sign ^ b_neg;
+ is_sub = a_sign ^ b_sign;
+ cmp_res = bfdec_cmpu(a, b);
+ if (cmp_res < 0) {
+ const bfdec_t *tmp;
+ tmp = a;
+ a = b;
+ b = tmp;
+ a_sign = b_sign; /* b_sign is never used later */
+ }
+ /* abs(a) >= abs(b) */
+ if (cmp_res == 0 && is_sub && a->expn < BF_EXP_INF) {
+ /* zero result */
+ bfdec_set_zero(r, (flags & BF_RND_MASK) == BF_RNDD);
+ ret = 0;
+ } else if (a->len == 0 || b->len == 0) {
+ ret = 0;
+ if (a->expn >= BF_EXP_INF) {
+ if (a->expn == BF_EXP_NAN) {
+ /* at least one operand is NaN */
+ bfdec_set_nan(r);
+ ret = 0;
+ } else if (b->expn == BF_EXP_INF && is_sub) {
+ /* infinities with different signs */
+ bfdec_set_nan(r);
+ ret = BF_ST_INVALID_OP;
+ } else {
+ bfdec_set_inf(r, a_sign);
+ }
+ } else {
+ /* at least one zero and not subtract */
+ if (bfdec_set(r, a))
+ return BF_ST_MEM_ERROR;
+ r->sign = a_sign;
+ goto renorm;
+ }
+ } else {
+ slimb_t d, a_offset, b_offset, i, r_len;
+ limb_t carry;
+ limb_t *b1_tab;
+ int b_shift;
+ mp_size_t b1_len;
+
+ d = a->expn - b->expn;
+
+ /* XXX: not efficient in time and memory if the precision is
+ not infinite */
+ r_len = bf_max(a->len, b->len + (d + LIMB_DIGITS - 1) / LIMB_DIGITS);
+ if (bfdec_resize(r, r_len))
+ goto fail;
+ r->sign = a_sign;
+ r->expn = a->expn;
+
+ a_offset = r_len - a->len;
+ for(i = 0; i < a_offset; i++)
+ r->tab[i] = 0;
+ for(i = 0; i < a->len; i++)
+ r->tab[a_offset + i] = a->tab[i];
+
+ b_shift = d % LIMB_DIGITS;
+ if (b_shift == 0) {
+ b1_len = b->len;
+ b1_tab = (limb_t *)b->tab;
+ } else {
+ b1_len = b->len + 1;
+ b1_tab = bf_malloc(s, sizeof(limb_t) * b1_len);
+ if (!b1_tab)
+ goto fail;
+ b1_tab[0] = mp_shr_dec(b1_tab + 1, b->tab, b->len, b_shift, 0) *
+ mp_pow_dec[LIMB_DIGITS - b_shift];
+ }
+ b_offset = r_len - (b->len + (d + LIMB_DIGITS - 1) / LIMB_DIGITS);
+
+ if (is_sub) {
+ carry = mp_sub_dec(r->tab + b_offset, r->tab + b_offset,
+ b1_tab, b1_len, 0);
+ if (carry != 0) {
+ carry = mp_sub_ui_dec(r->tab + b_offset + b1_len, carry,
+ r_len - (b_offset + b1_len));
+ assert(carry == 0);
+ }
+ } else {
+ carry = mp_add_dec(r->tab + b_offset, r->tab + b_offset,
+ b1_tab, b1_len, 0);
+ if (carry != 0) {
+ carry = mp_add_ui_dec(r->tab + b_offset + b1_len, carry,
+ r_len - (b_offset + b1_len));
+ }
+ if (carry != 0) {
+ if (bfdec_resize(r, r_len + 1)) {
+ if (b_shift != 0)
+ bf_free(s, b1_tab);
+ goto fail;
+ }
+ r->tab[r_len] = 1;
+ r->expn += LIMB_DIGITS;
+ }
+ }
+ if (b_shift != 0)
+ bf_free(s, b1_tab);
+ renorm:
+ ret = bfdec_normalize_and_round(r, prec, flags);
+ }
+ return ret;
+ fail:
+ bfdec_set_nan(r);
+ return BF_ST_MEM_ERROR;
+}
+
+static int __bfdec_add(bfdec_t *r, const bfdec_t *a, const bfdec_t *b, limb_t prec,
+ bf_flags_t flags)
+{
+ return bfdec_add_internal(r, a, b, prec, flags, 0);
+}
+
+static int __bfdec_sub(bfdec_t *r, const bfdec_t *a, const bfdec_t *b, limb_t prec,
+ bf_flags_t flags)
+{
+ return bfdec_add_internal(r, a, b, prec, flags, 1);
+}
+
+int bfdec_add(bfdec_t *r, const bfdec_t *a, const bfdec_t *b, limb_t prec,
+ bf_flags_t flags)
+{
+ return bf_op2((bf_t *)r, (bf_t *)a, (bf_t *)b, prec, flags,
+ (bf_op2_func_t *)__bfdec_add);
+}
+
+int bfdec_sub(bfdec_t *r, const bfdec_t *a, const bfdec_t *b, limb_t prec,
+ bf_flags_t flags)
+{
+ return bf_op2((bf_t *)r, (bf_t *)a, (bf_t *)b, prec, flags,
+ (bf_op2_func_t *)__bfdec_sub);
+}
+
+int bfdec_mul(bfdec_t *r, const bfdec_t *a, const bfdec_t *b, limb_t prec,
+ bf_flags_t flags)
+{
+ int ret, r_sign;
+
+ if (a->len < b->len) {
+ const bfdec_t *tmp = a;
+ a = b;
+ b = tmp;
+ }
+ r_sign = a->sign ^ b->sign;
+ /* here b->len <= a->len */
+ if (b->len == 0) {
+ if (a->expn == BF_EXP_NAN || b->expn == BF_EXP_NAN) {
+ bfdec_set_nan(r);
+ ret = 0;
+ } else if (a->expn == BF_EXP_INF || b->expn == BF_EXP_INF) {
+ if ((a->expn == BF_EXP_INF && b->expn == BF_EXP_ZERO) ||
+ (a->expn == BF_EXP_ZERO && b->expn == BF_EXP_INF)) {
+ bfdec_set_nan(r);
+ ret = BF_ST_INVALID_OP;
+ } else {
+ bfdec_set_inf(r, r_sign);
+ ret = 0;
+ }
+ } else {
+ bfdec_set_zero(r, r_sign);
+ ret = 0;
+ }
+ } else {
+ bfdec_t tmp, *r1 = NULL;
+ limb_t a_len, b_len;
+ limb_t *a_tab, *b_tab;
+
+ a_len = a->len;
+ b_len = b->len;
+ a_tab = a->tab;
+ b_tab = b->tab;
+
+ if (r == a || r == b) {
+ bfdec_init(r->ctx, &tmp);
+ r1 = r;
+ r = &tmp;
+ }
+ if (bfdec_resize(r, a_len + b_len)) {
+ bfdec_set_nan(r);
+ ret = BF_ST_MEM_ERROR;
+ goto done;
+ }
+ mp_mul_basecase_dec(r->tab, a_tab, a_len, b_tab, b_len);
+ r->sign = r_sign;
+ r->expn = a->expn + b->expn;
+ ret = bfdec_normalize_and_round(r, prec, flags);
+ done:
+ if (r == &tmp)
+ bfdec_move(r1, &tmp);
+ }
+ return ret;
+}
+
+int bfdec_mul_si(bfdec_t *r, const bfdec_t *a, int64_t b1, limb_t prec,
+ bf_flags_t flags)
+{
+ bfdec_t b;
+ int ret;
+ bfdec_init(r->ctx, &b);
+ ret = bfdec_set_si(&b, b1);
+ ret |= bfdec_mul(r, a, &b, prec, flags);
+ bfdec_delete(&b);
+ return ret;
+}
+
+int bfdec_add_si(bfdec_t *r, const bfdec_t *a, int64_t b1, limb_t prec,
+ bf_flags_t flags)
+{
+ bfdec_t b;
+ int ret;
+
+ bfdec_init(r->ctx, &b);
+ ret = bfdec_set_si(&b, b1);
+ ret |= bfdec_add(r, a, &b, prec, flags);
+ bfdec_delete(&b);
+ return ret;
+}
+
+static int __bfdec_div(bfdec_t *r, const bfdec_t *a, const bfdec_t *b,
+ limb_t prec, bf_flags_t flags)
+{
+ int ret, r_sign;
+ limb_t n, nb, precl;
+
+ r_sign = a->sign ^ b->sign;
+ if (a->expn >= BF_EXP_INF || b->expn >= BF_EXP_INF) {
+ if (a->expn == BF_EXP_NAN || b->expn == BF_EXP_NAN) {
+ bfdec_set_nan(r);
+ return 0;
+ } else if (a->expn == BF_EXP_INF && b->expn == BF_EXP_INF) {
+ bfdec_set_nan(r);
+ return BF_ST_INVALID_OP;
+ } else if (a->expn == BF_EXP_INF) {
+ bfdec_set_inf(r, r_sign);
+ return 0;
+ } else {
+ bfdec_set_zero(r, r_sign);
+ return 0;
+ }
+ } else if (a->expn == BF_EXP_ZERO) {
+ if (b->expn == BF_EXP_ZERO) {
+ bfdec_set_nan(r);
+ return BF_ST_INVALID_OP;
+ } else {
+ bfdec_set_zero(r, r_sign);
+ return 0;
+ }
+ } else if (b->expn == BF_EXP_ZERO) {
+ bfdec_set_inf(r, r_sign);
+ return BF_ST_DIVIDE_ZERO;
+ }
+
+ nb = b->len;
+ if (prec == BF_PREC_INF) {
+ /* infinite precision: return BF_ST_INVALID_OP if not an exact
+ result */
+ /* XXX: check */
+ precl = nb + 1;
+ } else if (flags & BF_FLAG_RADPNT_PREC) {
+ /* number of digits after the decimal point */
+ /* XXX: check (2 extra digits for rounding + 2 digits) */
+ precl = (bf_max(a->expn - b->expn, 0) + 2 +
+ prec + 2 + LIMB_DIGITS - 1) / LIMB_DIGITS;
+ } else {
+ /* number of limbs of the quotient (2 extra digits for rounding) */
+ precl = (prec + 2 + LIMB_DIGITS - 1) / LIMB_DIGITS;
+ }
+ n = bf_max(a->len, precl);
+
+ {
+ limb_t *taba, na, i;
+ slimb_t d;
+
+ na = n + nb;
+ taba = bf_malloc(r->ctx, (na + 1) * sizeof(limb_t));
+ if (!taba)
+ goto fail;
+ d = na - a->len;
+ memset(taba, 0, d * sizeof(limb_t));
+ memcpy(taba + d, a->tab, a->len * sizeof(limb_t));
+ if (bfdec_resize(r, n + 1))
+ goto fail1;
+ if (mp_div_dec(r->ctx, r->tab, taba, na, b->tab, nb)) {
+ fail1:
+ bf_free(r->ctx, taba);
+ goto fail;
+ }
+ /* see if non zero remainder */
+ for(i = 0; i < nb; i++) {
+ if (taba[i] != 0)
+ break;
+ }
+ bf_free(r->ctx, taba);
+ if (i != nb) {
+ if (prec == BF_PREC_INF) {
+ bfdec_set_nan(r);
+ return BF_ST_INVALID_OP;
+ } else {
+ r->tab[0] |= 1;
+ }
+ }
+ r->expn = a->expn - b->expn + LIMB_DIGITS;
+ r->sign = r_sign;
+ ret = bfdec_normalize_and_round(r, prec, flags);
+ }
+ return ret;
+ fail:
+ bfdec_set_nan(r);
+ return BF_ST_MEM_ERROR;
+}
+
+int bfdec_div(bfdec_t *r, const bfdec_t *a, const bfdec_t *b, limb_t prec,
+ bf_flags_t flags)
+{
+ return bf_op2((bf_t *)r, (bf_t *)a, (bf_t *)b, prec, flags,
+ (bf_op2_func_t *)__bfdec_div);
+}
+
+/* a and b must be finite numbers with a >= 0 and b > 0. 'q' is the
+ integer defined as floor(a/b) and r = a - q * b. */
+static void bfdec_tdivremu(bf_context_t *s, bfdec_t *q, bfdec_t *r,
+ const bfdec_t *a, const bfdec_t *b)
+{
+ if (bfdec_cmpu(a, b) < 0) {
+ bfdec_set_ui(q, 0);
+ bfdec_set(r, a);
+ } else {
+ bfdec_div(q, a, b, 0, BF_RNDZ | BF_FLAG_RADPNT_PREC);
+ bfdec_mul(r, q, b, BF_PREC_INF, BF_RNDZ);
+ bfdec_sub(r, a, r, BF_PREC_INF, BF_RNDZ);
+ }
+}
+
+/* division and remainder.
+
+ rnd_mode is the rounding mode for the quotient. The additional
+ rounding mode BF_RND_EUCLIDIAN is supported.
+
+ 'q' is an integer. 'r' is rounded with prec and flags (prec can be
+ BF_PREC_INF).
+*/
+int bfdec_divrem(bfdec_t *q, bfdec_t *r, const bfdec_t *a, const bfdec_t *b,
+ limb_t prec, bf_flags_t flags, int rnd_mode)
+{
+ bf_context_t *s = q->ctx;
+ bfdec_t a1_s, *a1 = &a1_s;
+ bfdec_t b1_s, *b1 = &b1_s;
+ bfdec_t r1_s, *r1 = &r1_s;
+ int q_sign, res;
+ BOOL is_ceil, is_rndn;
+
+ assert(q != a && q != b);
+ assert(r != a && r != b);
+ assert(q != r);
+
+ if (a->len == 0 || b->len == 0) {
+ bfdec_set_zero(q, 0);
+ if (a->expn == BF_EXP_NAN || b->expn == BF_EXP_NAN) {
+ bfdec_set_nan(r);
+ return 0;
+ } else if (a->expn == BF_EXP_INF || b->expn == BF_EXP_ZERO) {
+ bfdec_set_nan(r);
+ return BF_ST_INVALID_OP;
+ } else {
+ bfdec_set(r, a);
+ return bfdec_round(r, prec, flags);
+ }
+ }
+
+ q_sign = a->sign ^ b->sign;
+ is_rndn = (rnd_mode == BF_RNDN || rnd_mode == BF_RNDNA);
+ switch(rnd_mode) {
+ default:
+ case BF_RNDZ:
+ case BF_RNDN:
+ case BF_RNDNA:
+ is_ceil = FALSE;
+ break;
+ case BF_RNDD:
+ is_ceil = q_sign;
+ break;
+ case BF_RNDU:
+ is_ceil = q_sign ^ 1;
+ break;
+ case BF_RNDA:
+ is_ceil = TRUE;
+ break;
+ case BF_DIVREM_EUCLIDIAN:
+ is_ceil = a->sign;
+ break;
+ }
+
+ a1->expn = a->expn;
+ a1->tab = a->tab;
+ a1->len = a->len;
+ a1->sign = 0;
+
+ b1->expn = b->expn;
+ b1->tab = b->tab;
+ b1->len = b->len;
+ b1->sign = 0;
+
+ // bfdec_print_str("a1", a1);
+ // bfdec_print_str("b1", b1);
+ /* XXX: could improve to avoid having a large 'q' */
+ bfdec_tdivremu(s, q, r, a1, b1);
+ if (bfdec_is_nan(q) || bfdec_is_nan(r))
+ goto fail;
+ // bfdec_print_str("q", q);
+ // bfdec_print_str("r", r);
+
+ if (r->len != 0) {
+ if (is_rndn) {
+ bfdec_init(s, r1);
+ if (bfdec_set(r1, r))
+ goto fail;
+ if (bfdec_mul_si(r1, r1, 2, BF_PREC_INF, BF_RNDZ)) {
+ bfdec_delete(r1);
+ goto fail;
+ }
+ res = bfdec_cmpu(r1, b);
+ bfdec_delete(r1);
+ if (res > 0 ||
+ (res == 0 &&
+ (rnd_mode == BF_RNDNA ||
+ (get_digit(q->tab, q->len, q->len * LIMB_DIGITS - q->expn) & 1) != 0))) {
+ goto do_sub_r;
+ }
+ } else if (is_ceil) {
+ do_sub_r:
+ res = bfdec_add_si(q, q, 1, BF_PREC_INF, BF_RNDZ);
+ res |= bfdec_sub(r, r, b1, BF_PREC_INF, BF_RNDZ);
+ if (res & BF_ST_MEM_ERROR)
+ goto fail;
+ }
+ }
+
+ r->sign ^= a->sign;
+ q->sign = q_sign;
+ return bfdec_round(r, prec, flags);
+ fail:
+ bfdec_set_nan(q);
+ bfdec_set_nan(r);
+ return BF_ST_MEM_ERROR;
+}
+
+int bfdec_rem(bfdec_t *r, const bfdec_t *a, const bfdec_t *b, limb_t prec,
+ bf_flags_t flags, int rnd_mode)
+{
+ bfdec_t q_s, *q = &q_s;
+ int ret;
+
+ bfdec_init(r->ctx, q);
+ ret = bfdec_divrem(q, r, a, b, prec, flags, rnd_mode);
+ bfdec_delete(q);
+ return ret;
+}
+
+/* convert to integer (infinite precision) */
+int bfdec_rint(bfdec_t *r, int rnd_mode)
+{
+ return bfdec_round(r, 0, rnd_mode | BF_FLAG_RADPNT_PREC);
+}
+
+int bfdec_sqrt(bfdec_t *r, const bfdec_t *a, limb_t prec, bf_flags_t flags)
+{
+ bf_context_t *s = a->ctx;
+ int ret, k;
+ limb_t *a1, v;
+ slimb_t n, n1, prec1;
+ limb_t res;
+
+ assert(r != a);
+
+ if (a->len == 0) {
+ if (a->expn == BF_EXP_NAN) {
+ bfdec_set_nan(r);
+ } else if (a->expn == BF_EXP_INF && a->sign) {
+ goto invalid_op;
+ } else {
+ bfdec_set(r, a);
+ }
+ ret = 0;
+ } else if (a->sign || prec == BF_PREC_INF) {
+ invalid_op:
+ bfdec_set_nan(r);
+ ret = BF_ST_INVALID_OP;
+ } else {
+ if (flags & BF_FLAG_RADPNT_PREC) {
+ prec1 = bf_max(floor_div(a->expn + 1, 2) + prec, 1);
+ } else {
+ prec1 = prec;
+ }
+ /* convert the mantissa to an integer with at least 2 *
+ prec + 4 digits */
+ n = (2 * (prec1 + 2) + 2 * LIMB_DIGITS - 1) / (2 * LIMB_DIGITS);
+ if (bfdec_resize(r, n))
+ goto fail;
+ a1 = bf_malloc(s, sizeof(limb_t) * 2 * n);
+ if (!a1)
+ goto fail;
+ n1 = bf_min(2 * n, a->len);
+ memset(a1, 0, (2 * n - n1) * sizeof(limb_t));
+ memcpy(a1 + 2 * n - n1, a->tab + a->len - n1, n1 * sizeof(limb_t));
+ if (a->expn & 1) {
+ res = mp_shr_dec(a1, a1, 2 * n, 1, 0);
+ } else {
+ res = 0;
+ }
+ /* normalize so that a1 >= B^(2*n)/4. Not need for n = 1
+ because mp_sqrtrem2_dec already does it */
+ k = 0;
+ if (n > 1) {
+ v = a1[2 * n - 1];
+ while (v < BF_DEC_BASE / 4) {
+ k++;
+ v *= 4;
+ }
+ if (k != 0)
+ mp_mul1_dec(a1, a1, 2 * n, 1 << (2 * k), 0);
+ }
+ if (mp_sqrtrem_dec(s, r->tab, a1, n)) {
+ bf_free(s, a1);
+ goto fail;
+ }
+ if (k != 0)
+ mp_div1_dec(r->tab, r->tab, n, 1 << k, 0);
+ if (!res) {
+ res = mp_scan_nz(a1, n + 1);
+ }
+ bf_free(s, a1);
+ if (!res) {
+ res = mp_scan_nz(a->tab, a->len - n1);
+ }
+ if (res != 0)
+ r->tab[0] |= 1;
+ r->sign = 0;
+ r->expn = (a->expn + 1) >> 1;
+ ret = bfdec_round(r, prec, flags);
+ }
+ return ret;
+ fail:
+ bfdec_set_nan(r);
+ return BF_ST_MEM_ERROR;
+}
+
+/* The rounding mode is always BF_RNDZ. Return BF_ST_OVERFLOW if there
+ is an overflow and 0 otherwise. No memory error is possible. */
+int bfdec_get_int32(int *pres, const bfdec_t *a)
+{
+ uint32_t v;
+ int ret;
+ if (a->expn >= BF_EXP_INF) {
+ ret = 0;
+ if (a->expn == BF_EXP_INF) {
+ v = (uint32_t)INT32_MAX + a->sign;
+ /* XXX: return overflow ? */
+ } else {
+ v = INT32_MAX;
+ }
+ } else if (a->expn <= 0) {
+ v = 0;
+ ret = 0;
+ } else if (a->expn <= 9) {
+ v = fast_shr_dec(a->tab[a->len - 1], LIMB_DIGITS - a->expn);
+ if (a->sign)
+ v = -v;
+ ret = 0;
+ } else if (a->expn == 10) {
+ uint64_t v1;
+ uint32_t v_max;
+#if LIMB_BITS == 64
+ v1 = fast_shr_dec(a->tab[a->len - 1], LIMB_DIGITS - a->expn);
+#else
+ v1 = (uint64_t)a->tab[a->len - 1] * 10 +
+ get_digit(a->tab, a->len, (a->len - 1) * LIMB_DIGITS - 1);
+#endif
+ v_max = (uint32_t)INT32_MAX + a->sign;
+ if (v1 > v_max) {
+ v = v_max;
+ ret = BF_ST_OVERFLOW;
+ } else {
+ v = v1;
+ if (a->sign)
+ v = -v;
+ ret = 0;
+ }
+ } else {
+ v = (uint32_t)INT32_MAX + a->sign;
+ ret = BF_ST_OVERFLOW;
+ }
+ *pres = v;
+ return ret;
+}
+
+/* power to an integer with infinite precision */
+int bfdec_pow_ui(bfdec_t *r, const bfdec_t *a, limb_t b)
+{
+ int ret, n_bits, i;
+
+ assert(r != a);
+ if (b == 0)
+ return bfdec_set_ui(r, 1);
+ ret = bfdec_set(r, a);
+ n_bits = LIMB_BITS - clz(b);
+ for(i = n_bits - 2; i >= 0; i--) {
+ ret |= bfdec_mul(r, r, r, BF_PREC_INF, BF_RNDZ);
+ if ((b >> i) & 1)
+ ret |= bfdec_mul(r, r, a, BF_PREC_INF, BF_RNDZ);
+ }
+ return ret;
+}
+
+char *bfdec_ftoa(size_t *plen, const bfdec_t *a, limb_t prec, bf_flags_t flags)
+{
+ return bf_ftoa_internal(plen, (const bf_t *)a, 10, prec, flags, TRUE);
+}
+
+int bfdec_atof(bfdec_t *r, const char *str, const char **pnext,
+ limb_t prec, bf_flags_t flags)
+{
+ slimb_t dummy_exp;
+ return bf_atof_internal((bf_t *)r, &dummy_exp, str, pnext, 10, prec,
+ flags, TRUE);
+}
+
+#endif /* USE_BF_DEC */
+
+#ifdef USE_FFT_MUL
+/***************************************************************/
+/* Integer multiplication with FFT */
+
+/* or LIMB_BITS at bit position 'pos' in tab */
+static inline void put_bits(limb_t *tab, limb_t len, slimb_t pos, limb_t val)
+{
+ limb_t i;
+ int p;
+
+ i = pos >> LIMB_LOG2_BITS;
+ p = pos & (LIMB_BITS - 1);
+ if (i < len)
+ tab[i] |= val << p;
+ if (p != 0) {
+ i++;
+ if (i < len) {
+ tab[i] |= val >> (LIMB_BITS - p);
+ }
+ }
+}
+
+#if defined(__AVX2__)
+
+typedef double NTTLimb;
+
+/* we must have: modulo >= 1 << NTT_MOD_LOG2_MIN */
+#define NTT_MOD_LOG2_MIN 50
+#define NTT_MOD_LOG2_MAX 51
+#define NB_MODS 5
+#define NTT_PROOT_2EXP 39
+static const int ntt_int_bits[NB_MODS] = { 254, 203, 152, 101, 50, };
+
+static const limb_t ntt_mods[NB_MODS] = { 0x00073a8000000001, 0x0007858000000001, 0x0007a38000000001, 0x0007a68000000001, 0x0007fd8000000001,
+};
+
+static const limb_t ntt_proot[2][NB_MODS] = {
+ { 0x00056198d44332c8, 0x0002eb5d640aad39, 0x00047e31eaa35fd0, 0x0005271ac118a150, 0x00075e0ce8442bd5, },
+ { 0x000461169761bcc5, 0x0002dac3cb2da688, 0x0004abc97751e3bf, 0x000656778fc8c485, 0x0000dc6469c269fa, },
+};
+
+static const limb_t ntt_mods_cr[NB_MODS * (NB_MODS - 1) / 2] = {
+ 0x00020e4da740da8e, 0x0004c3dc09c09c1d, 0x000063bd097b4271, 0x000799d8f18f18fd,
+ 0x0005384222222264, 0x000572b07c1f07fe, 0x00035cd08888889a,
+ 0x00066015555557e3, 0x000725960b60b623,
+ 0x0002fc1fa1d6ce12,
+};
+
+#else
+
+typedef limb_t NTTLimb;
+
+#if LIMB_BITS == 64
+
+#define NTT_MOD_LOG2_MIN 61
+#define NTT_MOD_LOG2_MAX 62
+#define NB_MODS 5
+#define NTT_PROOT_2EXP 51
+static const int ntt_int_bits[NB_MODS] = { 307, 246, 185, 123, 61, };
+
+static const limb_t ntt_mods[NB_MODS] = { 0x28d8000000000001, 0x2a88000000000001, 0x2ed8000000000001, 0x3508000000000001, 0x3aa8000000000001,
+};
+
+static const limb_t ntt_proot[2][NB_MODS] = {
+ { 0x1b8ea61034a2bea7, 0x21a9762de58206fb, 0x02ca782f0756a8ea, 0x278384537a3e50a1, 0x106e13fee74ce0ab, },
+ { 0x233513af133e13b8, 0x1d13140d1c6f75f1, 0x12cde57f97e3eeda, 0x0d6149e23cbe654f, 0x36cd204f522a1379, },
+};
+
+static const limb_t ntt_mods_cr[NB_MODS * (NB_MODS - 1) / 2] = {
+ 0x08a9ed097b425eea, 0x18a44aaaaaaaaab3, 0x2493f57f57f57f5d, 0x126b8d0649a7f8d4,
+ 0x09d80ed7303b5ccc, 0x25b8bcf3cf3cf3d5, 0x2ce6ce63398ce638,
+ 0x0e31fad40a57eb59, 0x02a3529fd4a7f52f,
+ 0x3a5493e93e93e94a,
+};
+
+#elif LIMB_BITS == 32
+
+/* we must have: modulo >= 1 << NTT_MOD_LOG2_MIN */
+#define NTT_MOD_LOG2_MIN 29
+#define NTT_MOD_LOG2_MAX 30
+#define NB_MODS 5
+#define NTT_PROOT_2EXP 20
+static const int ntt_int_bits[NB_MODS] = { 148, 119, 89, 59, 29, };
+
+static const limb_t ntt_mods[NB_MODS] = { 0x0000000032b00001, 0x0000000033700001, 0x0000000036d00001, 0x0000000037300001, 0x000000003e500001,
+};
+
+static const limb_t ntt_proot[2][NB_MODS] = {
+ { 0x0000000032525f31, 0x0000000005eb3b37, 0x00000000246eda9f, 0x0000000035f25901, 0x00000000022f5768, },
+ { 0x00000000051eba1a, 0x00000000107be10e, 0x000000001cd574e0, 0x00000000053806e6, 0x000000002cd6bf98, },
+};
+
+static const limb_t ntt_mods_cr[NB_MODS * (NB_MODS - 1) / 2] = {
+ 0x000000000449559a, 0x000000001eba6ca9, 0x000000002ec18e46, 0x000000000860160b,
+ 0x000000000d321307, 0x000000000bf51120, 0x000000000f662938,
+ 0x000000000932ab3e, 0x000000002f40eef8,
+ 0x000000002e760905,
+};
+
+#endif /* LIMB_BITS */
+
+#endif /* !AVX2 */
+
+#if defined(__AVX2__)
+#define NTT_TRIG_K_MAX 18
+#else
+#define NTT_TRIG_K_MAX 19
+#endif
+
+typedef struct BFNTTState {
+ bf_context_t *ctx;
+
+ /* used for mul_mod_fast() */
+ limb_t ntt_mods_div[NB_MODS];
+
+ limb_t ntt_proot_pow[NB_MODS][2][NTT_PROOT_2EXP + 1];
+ limb_t ntt_proot_pow_inv[NB_MODS][2][NTT_PROOT_2EXP + 1];
+ NTTLimb *ntt_trig[NB_MODS][2][NTT_TRIG_K_MAX + 1];
+ /* 1/2^n mod m */
+ limb_t ntt_len_inv[NB_MODS][NTT_PROOT_2EXP + 1][2];
+#if defined(__AVX2__)
+ __m256d ntt_mods_cr_vec[NB_MODS * (NB_MODS - 1) / 2];
+ __m256d ntt_mods_vec[NB_MODS];
+ __m256d ntt_mods_inv_vec[NB_MODS];
+#else
+ limb_t ntt_mods_cr_inv[NB_MODS * (NB_MODS - 1) / 2];
+#endif
+} BFNTTState;
+
+static NTTLimb *get_trig(BFNTTState *s, int k, int inverse, int m_idx);
+
+/* add modulo with up to (LIMB_BITS-1) bit modulo */
+static inline limb_t add_mod(limb_t a, limb_t b, limb_t m)
+{
+ limb_t r;
+ r = a + b;
+ if (r >= m)
+ r -= m;
+ return r;
+}
+
+/* sub modulo with up to LIMB_BITS bit modulo */
+static inline limb_t sub_mod(limb_t a, limb_t b, limb_t m)
+{
+ limb_t r;
+ r = a - b;
+ if (r > a)
+ r += m;
+ return r;
+}
+
+/* return (r0+r1*B) mod m
+ precondition: 0 <= r0+r1*B < 2^(64+NTT_MOD_LOG2_MIN)
+*/
+static inline limb_t mod_fast(dlimb_t r,
+ limb_t m, limb_t m_inv)
+{
+ limb_t a1, q, t0, r1, r0;
+
+ a1 = r >> NTT_MOD_LOG2_MIN;
+
+ q = ((dlimb_t)a1 * m_inv) >> LIMB_BITS;
+ r = r - (dlimb_t)q * m - m * 2;
+ r1 = r >> LIMB_BITS;
+ t0 = (slimb_t)r1 >> 1;
+ r += m & t0;
+ r0 = r;
+ r1 = r >> LIMB_BITS;
+ r0 += m & r1;
+ return r0;
+}
+
+/* faster version using precomputed modulo inverse.
+ precondition: 0 <= a * b < 2^(64+NTT_MOD_LOG2_MIN) */
+static inline limb_t mul_mod_fast(limb_t a, limb_t b,
+ limb_t m, limb_t m_inv)
+{
+ dlimb_t r;
+ r = (dlimb_t)a * (dlimb_t)b;
+ return mod_fast(r, m, m_inv);
+}
+
+static inline limb_t init_mul_mod_fast(limb_t m)
+{
+ dlimb_t t;
+ assert(m < (limb_t)1 << NTT_MOD_LOG2_MAX);
+ assert(m >= (limb_t)1 << NTT_MOD_LOG2_MIN);
+ t = (dlimb_t)1 << (LIMB_BITS + NTT_MOD_LOG2_MIN);
+ return t / m;
+}
+
+/* Faster version used when the multiplier is constant. 0 <= a < 2^64,
+ 0 <= b < m. */
+static inline limb_t mul_mod_fast2(limb_t a, limb_t b,
+ limb_t m, limb_t b_inv)
+{
+ limb_t r, q;
+
+ q = ((dlimb_t)a * (dlimb_t)b_inv) >> LIMB_BITS;
+ r = a * b - q * m;
+ if (r >= m)
+ r -= m;
+ return r;
+}
+
+/* Faster version used when the multiplier is constant. 0 <= a < 2^64,
+ 0 <= b < m. Let r = a * b mod m. The return value is 'r' or 'r +
+ m'. */
+static inline limb_t mul_mod_fast3(limb_t a, limb_t b,
+ limb_t m, limb_t b_inv)
+{
+ limb_t r, q;
+
+ q = ((dlimb_t)a * (dlimb_t)b_inv) >> LIMB_BITS;
+ r = a * b - q * m;
+ return r;
+}
+
+static inline limb_t init_mul_mod_fast2(limb_t b, limb_t m)
+{
+ return ((dlimb_t)b << LIMB_BITS) / m;
+}
+
+#ifdef __AVX2__
+
+static inline limb_t ntt_limb_to_int(NTTLimb a, limb_t m)
+{
+ slimb_t v;
+ v = a;
+ if (v < 0)
+ v += m;
+ if (v >= m)
+ v -= m;
+ return v;
+}
+
+static inline NTTLimb int_to_ntt_limb(limb_t a, limb_t m)
+{
+ return (slimb_t)a;
+}
+
+static inline NTTLimb int_to_ntt_limb2(limb_t a, limb_t m)
+{
+ if (a >= (m / 2))
+ a -= m;
+ return (slimb_t)a;
+}
+
+/* return r + m if r < 0 otherwise r. */
+static inline __m256d ntt_mod1(__m256d r, __m256d m)
+{
+ return _mm256_blendv_pd(r, r + m, r);
+}
+
+/* input: abs(r) < 2 * m. Output: abs(r) < m */
+static inline __m256d ntt_mod(__m256d r, __m256d mf, __m256d m2f)
+{
+ return _mm256_blendv_pd(r, r + m2f, r) - mf;
+}
+
+/* input: abs(a*b) < 2 * m^2, output: abs(r) < m */
+static inline __m256d ntt_mul_mod(__m256d a, __m256d b, __m256d mf,
+ __m256d m_inv)
+{
+ __m256d r, q, ab1, ab0, qm0, qm1;
+ ab1 = a * b;
+ q = _mm256_round_pd(ab1 * m_inv, 0); /* round to nearest */
+ qm1 = q * mf;
+ qm0 = _mm256_fmsub_pd(q, mf, qm1); /* low part */
+ ab0 = _mm256_fmsub_pd(a, b, ab1); /* low part */
+ r = (ab1 - qm1) + (ab0 - qm0);
+ return r;
+}
+
+static void *bf_aligned_malloc(bf_context_t *s, size_t size, size_t align)
+{
+ void *ptr;
+ void **ptr1;
+ ptr = bf_malloc(s, size + sizeof(void *) + align - 1);
+ if (!ptr)
+ return NULL;
+ ptr1 = (void **)(((uintptr_t)ptr + sizeof(void *) + align - 1) &
+ ~(align - 1));
+ ptr1[-1] = ptr;
+ return ptr1;
+}
+
+static void bf_aligned_free(bf_context_t *s, void *ptr)
+{
+ if (!ptr)
+ return;
+ bf_free(s, ((void **)ptr)[-1]);
+}
+
+static void *ntt_malloc(BFNTTState *s, size_t size)
+{
+ return bf_aligned_malloc(s->ctx, size, 64);
+}
+
+static void ntt_free(BFNTTState *s, void *ptr)
+{
+ bf_aligned_free(s->ctx, ptr);
+}
+
+static no_inline int ntt_fft(BFNTTState *s,
+ NTTLimb *out_buf, NTTLimb *in_buf,
+ NTTLimb *tmp_buf, int fft_len_log2,
+ int inverse, int m_idx)
+{
+ limb_t nb_blocks, fft_per_block, p, k, n, stride_in, i, j;
+ NTTLimb *tab_in, *tab_out, *tmp, *trig;
+ __m256d m_inv, mf, m2f, c, a0, a1, b0, b1;
+ limb_t m;
+ int l;
+
+ m = ntt_mods[m_idx];
+
+ m_inv = _mm256_set1_pd(1.0 / (double)m);
+ mf = _mm256_set1_pd(m);
+ m2f = _mm256_set1_pd(m * 2);
+
+ n = (limb_t)1 << fft_len_log2;
+ assert(n >= 8);
+ stride_in = n / 2;
+
+ tab_in = in_buf;
+ tab_out = tmp_buf;
+ trig = get_trig(s, fft_len_log2, inverse, m_idx);
+ if (!trig)
+ return -1;
+ p = 0;
+ for(k = 0; k < stride_in; k += 4) {
+ a0 = _mm256_load_pd(&tab_in[k]);
+ a1 = _mm256_load_pd(&tab_in[k + stride_in]);
+ c = _mm256_load_pd(trig);
+ trig += 4;
+ b0 = ntt_mod(a0 + a1, mf, m2f);
+ b1 = ntt_mul_mod(a0 - a1, c, mf, m_inv);
+ a0 = _mm256_permute2f128_pd(b0, b1, 0x20);
+ a1 = _mm256_permute2f128_pd(b0, b1, 0x31);
+ a0 = _mm256_permute4x64_pd(a0, 0xd8);
+ a1 = _mm256_permute4x64_pd(a1, 0xd8);
+ _mm256_store_pd(&tab_out[p], a0);
+ _mm256_store_pd(&tab_out[p + 4], a1);
+ p += 2 * 4;
+ }
+ tmp = tab_in;
+ tab_in = tab_out;
+ tab_out = tmp;
+
+ trig = get_trig(s, fft_len_log2 - 1, inverse, m_idx);
+ if (!trig)
+ return -1;
+ p = 0;
+ for(k = 0; k < stride_in; k += 4) {
+ a0 = _mm256_load_pd(&tab_in[k]);
+ a1 = _mm256_load_pd(&tab_in[k + stride_in]);
+ c = _mm256_setr_pd(trig[0], trig[0], trig[1], trig[1]);
+ trig += 2;
+ b0 = ntt_mod(a0 + a1, mf, m2f);
+ b1 = ntt_mul_mod(a0 - a1, c, mf, m_inv);
+ a0 = _mm256_permute2f128_pd(b0, b1, 0x20);
+ a1 = _mm256_permute2f128_pd(b0, b1, 0x31);
+ _mm256_store_pd(&tab_out[p], a0);
+ _mm256_store_pd(&tab_out[p + 4], a1);
+ p += 2 * 4;
+ }
+ tmp = tab_in;
+ tab_in = tab_out;
+ tab_out = tmp;
+
+ nb_blocks = n / 4;
+ fft_per_block = 4;
+
+ l = fft_len_log2 - 2;
+ while (nb_blocks != 2) {
+ nb_blocks >>= 1;
+ p = 0;
+ k = 0;
+ trig = get_trig(s, l, inverse, m_idx);
+ if (!trig)
+ return -1;
+ for(i = 0; i < nb_blocks; i++) {
+ c = _mm256_set1_pd(trig[0]);
+ trig++;
+ for(j = 0; j < fft_per_block; j += 4) {
+ a0 = _mm256_load_pd(&tab_in[k + j]);
+ a1 = _mm256_load_pd(&tab_in[k + j + stride_in]);
+ b0 = ntt_mod(a0 + a1, mf, m2f);
+ b1 = ntt_mul_mod(a0 - a1, c, mf, m_inv);
+ _mm256_store_pd(&tab_out[p + j], b0);
+ _mm256_store_pd(&tab_out[p + j + fft_per_block], b1);
+ }
+ k += fft_per_block;
+ p += 2 * fft_per_block;
+ }
+ fft_per_block <<= 1;
+ l--;
+ tmp = tab_in;
+ tab_in = tab_out;
+ tab_out = tmp;
+ }
+
+ tab_out = out_buf;
+ for(k = 0; k < stride_in; k += 4) {
+ a0 = _mm256_load_pd(&tab_in[k]);
+ a1 = _mm256_load_pd(&tab_in[k + stride_in]);
+ b0 = ntt_mod(a0 + a1, mf, m2f);
+ b1 = ntt_mod(a0 - a1, mf, m2f);
+ _mm256_store_pd(&tab_out[k], b0);
+ _mm256_store_pd(&tab_out[k + stride_in], b1);
+ }
+ return 0;
+}
+
+static void ntt_vec_mul(BFNTTState *s,
+ NTTLimb *tab1, NTTLimb *tab2, limb_t fft_len_log2,
+ int k_tot, int m_idx)
+{
+ limb_t i, c_inv, n, m;
+ __m256d m_inv, mf, a, b, c;
+
+ m = ntt_mods[m_idx];
+ c_inv = s->ntt_len_inv[m_idx][k_tot][0];
+ m_inv = _mm256_set1_pd(1.0 / (double)m);
+ mf = _mm256_set1_pd(m);
+ c = _mm256_set1_pd(int_to_ntt_limb(c_inv, m));
+ n = (limb_t)1 << fft_len_log2;
+ for(i = 0; i < n; i += 4) {
+ a = _mm256_load_pd(&tab1[i]);
+ b = _mm256_load_pd(&tab2[i]);
+ a = ntt_mul_mod(a, b, mf, m_inv);
+ a = ntt_mul_mod(a, c, mf, m_inv);
+ _mm256_store_pd(&tab1[i], a);
+ }
+}
+
+static no_inline void mul_trig(NTTLimb *buf,
+ limb_t n, limb_t c1, limb_t m, limb_t m_inv1)
+{
+ limb_t i, c2, c3, c4;
+ __m256d c, c_mul, a0, mf, m_inv;
+ assert(n >= 2);
+
+ mf = _mm256_set1_pd(m);
+ m_inv = _mm256_set1_pd(1.0 / (double)m);
+
+ c2 = mul_mod_fast(c1, c1, m, m_inv1);
+ c3 = mul_mod_fast(c2, c1, m, m_inv1);
+ c4 = mul_mod_fast(c2, c2, m, m_inv1);
+ c = _mm256_setr_pd(1, int_to_ntt_limb(c1, m),
+ int_to_ntt_limb(c2, m), int_to_ntt_limb(c3, m));
+ c_mul = _mm256_set1_pd(int_to_ntt_limb(c4, m));
+ for(i = 0; i < n; i += 4) {
+ a0 = _mm256_load_pd(&buf[i]);
+ a0 = ntt_mul_mod(a0, c, mf, m_inv);
+ _mm256_store_pd(&buf[i], a0);
+ c = ntt_mul_mod(c, c_mul, mf, m_inv);
+ }
+}
+
+#else
+
+static void *ntt_malloc(BFNTTState *s, size_t size)
+{
+ return bf_malloc(s->ctx, size);
+}
+
+static void ntt_free(BFNTTState *s, void *ptr)
+{
+ bf_free(s->ctx, ptr);
+}
+
+static inline limb_t ntt_limb_to_int(NTTLimb a, limb_t m)
+{
+ if (a >= m)
+ a -= m;
+ return a;
+}
+
+static inline NTTLimb int_to_ntt_limb(slimb_t a, limb_t m)
+{
+ return a;
+}
+
+static no_inline int ntt_fft(BFNTTState *s, NTTLimb *out_buf, NTTLimb *in_buf,
+ NTTLimb *tmp_buf, int fft_len_log2,
+ int inverse, int m_idx)
+{
+ limb_t nb_blocks, fft_per_block, p, k, n, stride_in, i, j, m, m2;
+ NTTLimb *tab_in, *tab_out, *tmp, a0, a1, b0, b1, c, *trig, c_inv;
+ int l;
+
+ m = ntt_mods[m_idx];
+ m2 = 2 * m;
+ n = (limb_t)1 << fft_len_log2;
+ nb_blocks = n;
+ fft_per_block = 1;
+ stride_in = n / 2;
+ tab_in = in_buf;
+ tab_out = tmp_buf;
+ l = fft_len_log2;
+ while (nb_blocks != 2) {
+ nb_blocks >>= 1;
+ p = 0;
+ k = 0;
+ trig = get_trig(s, l, inverse, m_idx);
+ if (!trig)
+ return -1;
+ for(i = 0; i < nb_blocks; i++) {
+ c = trig[0];
+ c_inv = trig[1];
+ trig += 2;
+ for(j = 0; j < fft_per_block; j++) {
+ a0 = tab_in[k + j];
+ a1 = tab_in[k + j + stride_in];
+ b0 = add_mod(a0, a1, m2);
+ b1 = a0 - a1 + m2;
+ b1 = mul_mod_fast3(b1, c, m, c_inv);
+ tab_out[p + j] = b0;
+ tab_out[p + j + fft_per_block] = b1;
+ }
+ k += fft_per_block;
+ p += 2 * fft_per_block;
+ }
+ fft_per_block <<= 1;
+ l--;
+ tmp = tab_in;
+ tab_in = tab_out;
+ tab_out = tmp;
+ }
+ /* no twiddle in last step */
+ tab_out = out_buf;
+ for(k = 0; k < stride_in; k++) {
+ a0 = tab_in[k];
+ a1 = tab_in[k + stride_in];
+ b0 = add_mod(a0, a1, m2);
+ b1 = sub_mod(a0, a1, m2);
+ tab_out[k] = b0;
+ tab_out[k + stride_in] = b1;
+ }
+ return 0;
+}
+
+static void ntt_vec_mul(BFNTTState *s,
+ NTTLimb *tab1, NTTLimb *tab2, int fft_len_log2,
+ int k_tot, int m_idx)
+{
+ limb_t i, norm, norm_inv, a, n, m, m_inv;
+
+ m = ntt_mods[m_idx];
+ m_inv = s->ntt_mods_div[m_idx];
+ norm = s->ntt_len_inv[m_idx][k_tot][0];
+ norm_inv = s->ntt_len_inv[m_idx][k_tot][1];
+ n = (limb_t)1 << fft_len_log2;
+ for(i = 0; i < n; i++) {
+ a = tab1[i];
+ /* need to reduce the range so that the product is <
+ 2^(LIMB_BITS+NTT_MOD_LOG2_MIN) */
+ if (a >= m)
+ a -= m;
+ a = mul_mod_fast(a, tab2[i], m, m_inv);
+ a = mul_mod_fast3(a, norm, m, norm_inv);
+ tab1[i] = a;
+ }
+}
+
+static no_inline void mul_trig(NTTLimb *buf,
+ limb_t n, limb_t c_mul, limb_t m, limb_t m_inv)
+{
+ limb_t i, c0, c_mul_inv;
+
+ c0 = 1;
+ c_mul_inv = init_mul_mod_fast2(c_mul, m);
+ for(i = 0; i < n; i++) {
+ buf[i] = mul_mod_fast(buf[i], c0, m, m_inv);
+ c0 = mul_mod_fast2(c0, c_mul, m, c_mul_inv);
+ }
+}
+
+#endif /* !AVX2 */
+
+static no_inline NTTLimb *get_trig(BFNTTState *s,
+ int k, int inverse, int m_idx)
+{
+ NTTLimb *tab;
+ limb_t i, n2, c, c_mul, m, c_mul_inv;
+
+ if (k > NTT_TRIG_K_MAX)
+ return NULL;
+
+ tab = s->ntt_trig[m_idx][inverse][k];
+ if (tab)
+ return tab;
+ n2 = (limb_t)1 << (k - 1);
+ m = ntt_mods[m_idx];
+#ifdef __AVX2__
+ tab = ntt_malloc(s, sizeof(NTTLimb) * n2);
+#else
+ tab = ntt_malloc(s, sizeof(NTTLimb) * n2 * 2);
+#endif
+ if (!tab)
+ return NULL;
+ c = 1;
+ c_mul = s->ntt_proot_pow[m_idx][inverse][k];
+ c_mul_inv = s->ntt_proot_pow_inv[m_idx][inverse][k];
+ for(i = 0; i < n2; i++) {
+#ifdef __AVX2__
+ tab[i] = int_to_ntt_limb2(c, m);
+#else
+ tab[2 * i] = int_to_ntt_limb(c, m);
+ tab[2 * i + 1] = init_mul_mod_fast2(c, m);
+#endif
+ c = mul_mod_fast2(c, c_mul, m, c_mul_inv);
+ }
+ s->ntt_trig[m_idx][inverse][k] = tab;
+ return tab;
+}
+
+void fft_clear_cache(bf_context_t *s1)
+{
+ int m_idx, inverse, k;
+ BFNTTState *s = s1->ntt_state;
+ if (s) {
+ for(m_idx = 0; m_idx < NB_MODS; m_idx++) {
+ for(inverse = 0; inverse < 2; inverse++) {
+ for(k = 0; k < NTT_TRIG_K_MAX + 1; k++) {
+ if (s->ntt_trig[m_idx][inverse][k]) {
+ ntt_free(s, s->ntt_trig[m_idx][inverse][k]);
+ s->ntt_trig[m_idx][inverse][k] = NULL;
+ }
+ }
+ }
+ }
+#if defined(__AVX2__)
+ bf_aligned_free(s1, s);
+#else
+ bf_free(s1, s);
+#endif
+ s1->ntt_state = NULL;
+ }
+}
+
+#define STRIP_LEN 16
+
+/* dst = buf1, src = buf2 */
+static int ntt_fft_partial(BFNTTState *s, NTTLimb *buf1,
+ int k1, int k2, limb_t n1, limb_t n2, int inverse,
+ limb_t m_idx)
+{
+ limb_t i, j, c_mul, c0, m, m_inv, strip_len, l;
+ NTTLimb *buf2, *buf3;
+
+ buf2 = NULL;
+ buf3 = ntt_malloc(s, sizeof(NTTLimb) * n1);
+ if (!buf3)
+ goto fail;
+ if (k2 == 0) {
+ if (ntt_fft(s, buf1, buf1, buf3, k1, inverse, m_idx))
+ goto fail;
+ } else {
+ strip_len = STRIP_LEN;
+ buf2 = ntt_malloc(s, sizeof(NTTLimb) * n1 * strip_len);
+ if (!buf2)
+ goto fail;
+ m = ntt_mods[m_idx];
+ m_inv = s->ntt_mods_div[m_idx];
+ c0 = s->ntt_proot_pow[m_idx][inverse][k1 + k2];
+ c_mul = 1;
+ assert((n2 % strip_len) == 0);
+ for(j = 0; j < n2; j += strip_len) {
+ for(i = 0; i < n1; i++) {
+ for(l = 0; l < strip_len; l++) {
+ buf2[i + l * n1] = buf1[i * n2 + (j + l)];
+ }
+ }
+ for(l = 0; l < strip_len; l++) {
+ if (inverse)
+ mul_trig(buf2 + l * n1, n1, c_mul, m, m_inv);
+ if (ntt_fft(s, buf2 + l * n1, buf2 + l * n1, buf3, k1, inverse, m_idx))
+ goto fail;
+ if (!inverse)
+ mul_trig(buf2 + l * n1, n1, c_mul, m, m_inv);
+ c_mul = mul_mod_fast(c_mul, c0, m, m_inv);
+ }
+
+ for(i = 0; i < n1; i++) {
+ for(l = 0; l < strip_len; l++) {
+ buf1[i * n2 + (j + l)] = buf2[i + l *n1];
+ }
+ }
+ }
+ ntt_free(s, buf2);
+ }
+ ntt_free(s, buf3);
+ return 0;
+ fail:
+ ntt_free(s, buf2);
+ ntt_free(s, buf3);
+ return -1;
+}
+
+
+/* dst = buf1, src = buf2, tmp = buf3 */
+static int ntt_conv(BFNTTState *s, NTTLimb *buf1, NTTLimb *buf2,
+ int k, int k_tot, limb_t m_idx)
+{
+ limb_t n1, n2, i;
+ int k1, k2;
+
+ if (k <= NTT_TRIG_K_MAX) {
+ k1 = k;
+ } else {
+ /* recursive split of the FFT */
+ k1 = bf_min(k / 2, NTT_TRIG_K_MAX);
+ }
+ k2 = k - k1;
+ n1 = (limb_t)1 << k1;
+ n2 = (limb_t)1 << k2;
+
+ if (ntt_fft_partial(s, buf1, k1, k2, n1, n2, 0, m_idx))
+ return -1;
+ if (ntt_fft_partial(s, buf2, k1, k2, n1, n2, 0, m_idx))
+ return -1;
+ if (k2 == 0) {
+ ntt_vec_mul(s, buf1, buf2, k, k_tot, m_idx);
+ } else {
+ for(i = 0; i < n1; i++) {
+ ntt_conv(s, buf1 + i * n2, buf2 + i * n2, k2, k_tot, m_idx);
+ }
+ }
+ if (ntt_fft_partial(s, buf1, k1, k2, n1, n2, 1, m_idx))
+ return -1;
+ return 0;
+}
+
+
+static no_inline void limb_to_ntt(BFNTTState *s,
+ NTTLimb *tabr, limb_t fft_len,
+ const limb_t *taba, limb_t a_len, int dpl,
+ int first_m_idx, int nb_mods)
+{
+ slimb_t i, n;
+ dlimb_t a, b;
+ int j, shift;
+ limb_t base_mask1, a0, a1, a2, r, m, m_inv;
+
+#if 0
+ for(i = 0; i < a_len; i++) {
+ printf("%" PRId64 ": " FMT_LIMB "\n",
+ (int64_t)i, taba[i]);
+ }
+#endif
+ memset(tabr, 0, sizeof(NTTLimb) * fft_len * nb_mods);
+ shift = dpl & (LIMB_BITS - 1);
+ if (shift == 0)
+ base_mask1 = -1;
+ else
+ base_mask1 = ((limb_t)1 << shift) - 1;
+ n = bf_min(fft_len, (a_len * LIMB_BITS + dpl - 1) / dpl);
+ for(i = 0; i < n; i++) {
+ a0 = get_bits(taba, a_len, i * dpl);
+ if (dpl <= LIMB_BITS) {
+ a0 &= base_mask1;
+ a = a0;
+ } else {
+ a1 = get_bits(taba, a_len, i * dpl + LIMB_BITS);
+ if (dpl <= (LIMB_BITS + NTT_MOD_LOG2_MIN)) {
+ a = a0 | ((dlimb_t)(a1 & base_mask1) << LIMB_BITS);
+ } else {
+ if (dpl > 2 * LIMB_BITS) {
+ a2 = get_bits(taba, a_len, i * dpl + LIMB_BITS * 2) &
+ base_mask1;
+ } else {
+ a1 &= base_mask1;
+ a2 = 0;
+ }
+ // printf("a=0x%016lx%016lx%016lx\n", a2, a1, a0);
+ a = (a0 >> (LIMB_BITS - NTT_MOD_LOG2_MAX + NTT_MOD_LOG2_MIN)) |
+ ((dlimb_t)a1 << (NTT_MOD_LOG2_MAX - NTT_MOD_LOG2_MIN)) |
+ ((dlimb_t)a2 << (LIMB_BITS + NTT_MOD_LOG2_MAX - NTT_MOD_LOG2_MIN));
+ a0 &= ((limb_t)1 << (LIMB_BITS - NTT_MOD_LOG2_MAX + NTT_MOD_LOG2_MIN)) - 1;
+ }
+ }
+ for(j = 0; j < nb_mods; j++) {
+ m = ntt_mods[first_m_idx + j];
+ m_inv = s->ntt_mods_div[first_m_idx + j];
+ r = mod_fast(a, m, m_inv);
+ if (dpl > (LIMB_BITS + NTT_MOD_LOG2_MIN)) {
+ b = ((dlimb_t)r << (LIMB_BITS - NTT_MOD_LOG2_MAX + NTT_MOD_LOG2_MIN)) | a0;
+ r = mod_fast(b, m, m_inv);
+ }
+ tabr[i + j * fft_len] = int_to_ntt_limb(r, m);
+ }
+ }
+}
+
+#if defined(__AVX2__)
+
+#define VEC_LEN 4
+
+typedef union {
+ __m256d v;
+ double d[4];
+} VecUnion;
+
+static no_inline void ntt_to_limb(BFNTTState *s, limb_t *tabr, limb_t r_len,
+ const NTTLimb *buf, int fft_len_log2, int dpl,
+ int nb_mods)
+{
+ const limb_t *mods = ntt_mods + NB_MODS - nb_mods;
+ const __m256d *mods_cr_vec, *mf, *m_inv;
+ VecUnion y[NB_MODS];
+ limb_t u[NB_MODS], carry[NB_MODS], fft_len, base_mask1, r;
+ slimb_t i, len, pos;
+ int j, k, l, shift, n_limb1, p;
+ dlimb_t t;
+
+ j = NB_MODS * (NB_MODS - 1) / 2 - nb_mods * (nb_mods - 1) / 2;
+ mods_cr_vec = s->ntt_mods_cr_vec + j;
+ mf = s->ntt_mods_vec + NB_MODS - nb_mods;
+ m_inv = s->ntt_mods_inv_vec + NB_MODS - nb_mods;
+
+ shift = dpl & (LIMB_BITS - 1);
+ if (shift == 0)
+ base_mask1 = -1;
+ else
+ base_mask1 = ((limb_t)1 << shift) - 1;
+ n_limb1 = ((unsigned)dpl - 1) / LIMB_BITS;
+ for(j = 0; j < NB_MODS; j++)
+ carry[j] = 0;
+ for(j = 0; j < NB_MODS; j++)
+ u[j] = 0; /* avoid warnings */
+ memset(tabr, 0, sizeof(limb_t) * r_len);
+ fft_len = (limb_t)1 << fft_len_log2;
+ len = bf_min(fft_len, (r_len * LIMB_BITS + dpl - 1) / dpl);
+ len = (len + VEC_LEN - 1) & ~(VEC_LEN - 1);
+ i = 0;
+ while (i < len) {
+ for(j = 0; j < nb_mods; j++)
+ y[j].v = *(__m256d *)&buf[i + fft_len * j];
+
+ /* Chinese remainder to get mixed radix representation */
+ l = 0;
+ for(j = 0; j < nb_mods - 1; j++) {
+ y[j].v = ntt_mod1(y[j].v, mf[j]);
+ for(k = j + 1; k < nb_mods; k++) {
+ y[k].v = ntt_mul_mod(y[k].v - y[j].v,
+ mods_cr_vec[l], mf[k], m_inv[k]);
+ l++;
+ }
+ }
+ y[j].v = ntt_mod1(y[j].v, mf[j]);
+
+ for(p = 0; p < VEC_LEN; p++) {
+ /* back to normal representation */
+ u[0] = (int64_t)y[nb_mods - 1].d[p];
+ l = 1;
+ for(j = nb_mods - 2; j >= 1; j--) {
+ r = (int64_t)y[j].d[p];
+ for(k = 0; k < l; k++) {
+ t = (dlimb_t)u[k] * mods[j] + r;
+ r = t >> LIMB_BITS;
+ u[k] = t;
+ }
+ u[l] = r;
+ l++;
+ }
+ /* XXX: for nb_mods = 5, l should be 4 */
+
+ /* last step adds the carry */
+ r = (int64_t)y[0].d[p];
+ for(k = 0; k < l; k++) {
+ t = (dlimb_t)u[k] * mods[j] + r + carry[k];
+ r = t >> LIMB_BITS;
+ u[k] = t;
+ }
+ u[l] = r + carry[l];
+
+#if 0
+ printf("%" PRId64 ": ", i);
+ for(j = nb_mods - 1; j >= 0; j--) {
+ printf(" %019" PRIu64, u[j]);
+ }
+ printf("\n");
+#endif
+
+ /* write the digits */
+ pos = i * dpl;
+ for(j = 0; j < n_limb1; j++) {
+ put_bits(tabr, r_len, pos, u[j]);
+ pos += LIMB_BITS;
+ }
+ put_bits(tabr, r_len, pos, u[n_limb1] & base_mask1);
+ /* shift by dpl digits and set the carry */
+ if (shift == 0) {
+ for(j = n_limb1 + 1; j < nb_mods; j++)
+ carry[j - (n_limb1 + 1)] = u[j];
+ } else {
+ for(j = n_limb1; j < nb_mods - 1; j++) {
+ carry[j - n_limb1] = (u[j] >> shift) |
+ (u[j + 1] << (LIMB_BITS - shift));
+ }
+ carry[nb_mods - 1 - n_limb1] = u[nb_mods - 1] >> shift;
+ }
+ i++;
+ }
+ }
+}
+#else
+static no_inline void ntt_to_limb(BFNTTState *s, limb_t *tabr, limb_t r_len,
+ const NTTLimb *buf, int fft_len_log2, int dpl,
+ int nb_mods)
+{
+ const limb_t *mods = ntt_mods + NB_MODS - nb_mods;
+ const limb_t *mods_cr, *mods_cr_inv;
+ limb_t y[NB_MODS], u[NB_MODS], carry[NB_MODS], fft_len, base_mask1, r;
+ slimb_t i, len, pos;
+ int j, k, l, shift, n_limb1;
+ dlimb_t t;
+
+ j = NB_MODS * (NB_MODS - 1) / 2 - nb_mods * (nb_mods - 1) / 2;
+ mods_cr = ntt_mods_cr + j;
+ mods_cr_inv = s->ntt_mods_cr_inv + j;
+
+ shift = dpl & (LIMB_BITS - 1);
+ if (shift == 0)
+ base_mask1 = -1;
+ else
+ base_mask1 = ((limb_t)1 << shift) - 1;
+ n_limb1 = ((unsigned)dpl - 1) / LIMB_BITS;
+ for(j = 0; j < NB_MODS; j++)
+ carry[j] = 0;
+ for(j = 0; j < NB_MODS; j++)
+ u[j] = 0; /* avoid warnings */
+ memset(tabr, 0, sizeof(limb_t) * r_len);
+ fft_len = (limb_t)1 << fft_len_log2;
+ len = bf_min(fft_len, (r_len * LIMB_BITS + dpl - 1) / dpl);
+ for(i = 0; i < len; i++) {
+ for(j = 0; j < nb_mods; j++) {
+ y[j] = ntt_limb_to_int(buf[i + fft_len * j], mods[j]);
+ }
+
+ /* Chinese remainder to get mixed radix representation */
+ l = 0;
+ for(j = 0; j < nb_mods - 1; j++) {
+ for(k = j + 1; k < nb_mods; k++) {
+ limb_t m;
+ m = mods[k];
+ /* Note: there is no overflow in the sub_mod() because
+ the modulos are sorted by increasing order */
+ y[k] = mul_mod_fast2(y[k] - y[j] + m,
+ mods_cr[l], m, mods_cr_inv[l]);
+ l++;
+ }
+ }
+
+ /* back to normal representation */
+ u[0] = y[nb_mods - 1];
+ l = 1;
+ for(j = nb_mods - 2; j >= 1; j--) {
+ r = y[j];
+ for(k = 0; k < l; k++) {
+ t = (dlimb_t)u[k] * mods[j] + r;
+ r = t >> LIMB_BITS;
+ u[k] = t;
+ }
+ u[l] = r;
+ l++;
+ }
+
+ /* last step adds the carry */
+ r = y[0];
+ for(k = 0; k < l; k++) {
+ t = (dlimb_t)u[k] * mods[j] + r + carry[k];
+ r = t >> LIMB_BITS;
+ u[k] = t;
+ }
+ u[l] = r + carry[l];
+
+#if 0
+ printf("%" PRId64 ": ", (int64_t)i);
+ for(j = nb_mods - 1; j >= 0; j--) {
+ printf(" " FMT_LIMB, u[j]);
+ }
+ printf("\n");
+#endif
+
+ /* write the digits */
+ pos = i * dpl;
+ for(j = 0; j < n_limb1; j++) {
+ put_bits(tabr, r_len, pos, u[j]);
+ pos += LIMB_BITS;
+ }
+ put_bits(tabr, r_len, pos, u[n_limb1] & base_mask1);
+ /* shift by dpl digits and set the carry */
+ if (shift == 0) {
+ for(j = n_limb1 + 1; j < nb_mods; j++)
+ carry[j - (n_limb1 + 1)] = u[j];
+ } else {
+ for(j = n_limb1; j < nb_mods - 1; j++) {
+ carry[j - n_limb1] = (u[j] >> shift) |
+ (u[j + 1] << (LIMB_BITS - shift));
+ }
+ carry[nb_mods - 1 - n_limb1] = u[nb_mods - 1] >> shift;
+ }
+ }
+}
+#endif
+
+static int ntt_static_init(bf_context_t *s1)
+{
+ BFNTTState *s;
+ int inverse, i, j, k, l;
+ limb_t c, c_inv, c_inv2, m, m_inv;
+
+ if (s1->ntt_state)
+ return 0;
+#if defined(__AVX2__)
+ s = bf_aligned_malloc(s1, sizeof(*s), 64);
+#else
+ s = bf_malloc(s1, sizeof(*s));
+#endif
+ if (!s)
+ return -1;
+ memset(s, 0, sizeof(*s));
+ s1->ntt_state = s;
+ s->ctx = s1;
+
+ for(j = 0; j < NB_MODS; j++) {
+ m = ntt_mods[j];
+ m_inv = init_mul_mod_fast(m);
+ s->ntt_mods_div[j] = m_inv;
+#if defined(__AVX2__)
+ s->ntt_mods_vec[j] = _mm256_set1_pd(m);
+ s->ntt_mods_inv_vec[j] = _mm256_set1_pd(1.0 / (double)m);
+#endif
+ c_inv2 = (m + 1) / 2; /* 1/2 */
+ c_inv = 1;
+ for(i = 0; i <= NTT_PROOT_2EXP; i++) {
+ s->ntt_len_inv[j][i][0] = c_inv;
+ s->ntt_len_inv[j][i][1] = init_mul_mod_fast2(c_inv, m);
+ c_inv = mul_mod_fast(c_inv, c_inv2, m, m_inv);
+ }
+
+ for(inverse = 0; inverse < 2; inverse++) {
+ c = ntt_proot[inverse][j];
+ for(i = 0; i < NTT_PROOT_2EXP; i++) {
+ s->ntt_proot_pow[j][inverse][NTT_PROOT_2EXP - i] = c;
+ s->ntt_proot_pow_inv[j][inverse][NTT_PROOT_2EXP - i] =
+ init_mul_mod_fast2(c, m);
+ c = mul_mod_fast(c, c, m, m_inv);
+ }
+ }
+ }
+
+ l = 0;
+ for(j = 0; j < NB_MODS - 1; j++) {
+ for(k = j + 1; k < NB_MODS; k++) {
+#if defined(__AVX2__)
+ s->ntt_mods_cr_vec[l] = _mm256_set1_pd(int_to_ntt_limb2(ntt_mods_cr[l],
+ ntt_mods[k]));
+#else
+ s->ntt_mods_cr_inv[l] = init_mul_mod_fast2(ntt_mods_cr[l],
+ ntt_mods[k]);
+#endif
+ l++;
+ }
+ }
+ return 0;
+}
+
+int bf_get_fft_size(int *pdpl, int *pnb_mods, limb_t len)
+{
+ int dpl, fft_len_log2, n_bits, nb_mods, dpl_found, fft_len_log2_found;
+ int int_bits, nb_mods_found;
+ limb_t cost, min_cost;
+
+ min_cost = -1;
+ dpl_found = 0;
+ nb_mods_found = 4;
+ fft_len_log2_found = 0;
+ for(nb_mods = 3; nb_mods <= NB_MODS; nb_mods++) {
+ int_bits = ntt_int_bits[NB_MODS - nb_mods];
+ dpl = bf_min((int_bits - 4) / 2,
+ 2 * LIMB_BITS + 2 * NTT_MOD_LOG2_MIN - NTT_MOD_LOG2_MAX);
+ for(;;) {
+ fft_len_log2 = ceil_log2((len * LIMB_BITS + dpl - 1) / dpl);
+ if (fft_len_log2 > NTT_PROOT_2EXP)
+ goto next;
+ n_bits = fft_len_log2 + 2 * dpl;
+ if (n_bits <= int_bits) {
+ cost = ((limb_t)(fft_len_log2 + 1) << fft_len_log2) * nb_mods;
+ // printf("n=%d dpl=%d: cost=%" PRId64 "\n", nb_mods, dpl, (int64_t)cost);
+ if (cost < min_cost) {
+ min_cost = cost;
+ dpl_found = dpl;
+ nb_mods_found = nb_mods;
+ fft_len_log2_found = fft_len_log2;
+ }
+ break;
+ }
+ dpl--;
+ if (dpl == 0)
+ break;
+ }
+ next: ;
+ }
+ if (!dpl_found)
+ abort();
+ /* limit dpl if possible to reduce fixed cost of limb/NTT conversion */
+ if (dpl_found > (LIMB_BITS + NTT_MOD_LOG2_MIN) &&
+ ((limb_t)(LIMB_BITS + NTT_MOD_LOG2_MIN) << fft_len_log2_found) >=
+ len * LIMB_BITS) {
+ dpl_found = LIMB_BITS + NTT_MOD_LOG2_MIN;
+ }
+ *pnb_mods = nb_mods_found;
+ *pdpl = dpl_found;
+ return fft_len_log2_found;
+}
+
+/* return 0 if OK, -1 if memory error */
+static no_inline int fft_mul(bf_context_t *s1,
+ bf_t *res, limb_t *a_tab, limb_t a_len,
+ limb_t *b_tab, limb_t b_len, int mul_flags)
+{
+ BFNTTState *s;
+ int dpl, fft_len_log2, j, nb_mods, reduced_mem;
+ slimb_t len, fft_len;
+ NTTLimb *buf1, *buf2, *ptr;
+#if defined(USE_MUL_CHECK)
+ limb_t ha, hb, hr, h_ref;
+#endif
+
+ if (ntt_static_init(s1))
+ return -1;
+ s = s1->ntt_state;
+
+ /* find the optimal number of digits per limb (dpl) */
+ len = a_len + b_len;
+ fft_len_log2 = bf_get_fft_size(&dpl, &nb_mods, len);
+ fft_len = (uint64_t)1 << fft_len_log2;
+ // printf("len=%" PRId64 " fft_len_log2=%d dpl=%d\n", len, fft_len_log2, dpl);
+#if defined(USE_MUL_CHECK)
+ ha = mp_mod1(a_tab, a_len, BF_CHKSUM_MOD, 0);
+ hb = mp_mod1(b_tab, b_len, BF_CHKSUM_MOD, 0);
+#endif
+ if ((mul_flags & (FFT_MUL_R_OVERLAP_A | FFT_MUL_R_OVERLAP_B)) == 0) {
+ if (!(mul_flags & FFT_MUL_R_NORESIZE))
+ bf_resize(res, 0);
+ } else if (mul_flags & FFT_MUL_R_OVERLAP_B) {
+ limb_t *tmp_tab, tmp_len;
+ /* it is better to free 'b' first */
+ tmp_tab = a_tab;
+ a_tab = b_tab;
+ b_tab = tmp_tab;
+ tmp_len = a_len;
+ a_len = b_len;
+ b_len = tmp_len;
+ }
+ buf1 = ntt_malloc(s, sizeof(NTTLimb) * fft_len * nb_mods);
+ if (!buf1)
+ return -1;
+ limb_to_ntt(s, buf1, fft_len, a_tab, a_len, dpl,
+ NB_MODS - nb_mods, nb_mods);
+ if ((mul_flags & (FFT_MUL_R_OVERLAP_A | FFT_MUL_R_OVERLAP_B)) ==
+ FFT_MUL_R_OVERLAP_A) {
+ if (!(mul_flags & FFT_MUL_R_NORESIZE))
+ bf_resize(res, 0);
+ }
+ reduced_mem = (fft_len_log2 >= 14);
+ if (!reduced_mem) {
+ buf2 = ntt_malloc(s, sizeof(NTTLimb) * fft_len * nb_mods);
+ if (!buf2)
+ goto fail;
+ limb_to_ntt(s, buf2, fft_len, b_tab, b_len, dpl,
+ NB_MODS - nb_mods, nb_mods);
+ if (!(mul_flags & FFT_MUL_R_NORESIZE))
+ bf_resize(res, 0); /* in case res == b */
+ } else {
+ buf2 = ntt_malloc(s, sizeof(NTTLimb) * fft_len);
+ if (!buf2)
+ goto fail;
+ }
+ for(j = 0; j < nb_mods; j++) {
+ if (reduced_mem) {
+ limb_to_ntt(s, buf2, fft_len, b_tab, b_len, dpl,
+ NB_MODS - nb_mods + j, 1);
+ ptr = buf2;
+ } else {
+ ptr = buf2 + fft_len * j;
+ }
+ if (ntt_conv(s, buf1 + fft_len * j, ptr,
+ fft_len_log2, fft_len_log2, j + NB_MODS - nb_mods))
+ goto fail;
+ }
+ if (!(mul_flags & FFT_MUL_R_NORESIZE))
+ bf_resize(res, 0); /* in case res == b and reduced mem */
+ ntt_free(s, buf2);
+ buf2 = NULL;
+ if (!(mul_flags & FFT_MUL_R_NORESIZE)) {
+ if (bf_resize(res, len))
+ goto fail;
+ }
+ ntt_to_limb(s, res->tab, len, buf1, fft_len_log2, dpl, nb_mods);
+ ntt_free(s, buf1);
+#if defined(USE_MUL_CHECK)
+ hr = mp_mod1(res->tab, len, BF_CHKSUM_MOD, 0);
+ h_ref = mul_mod(ha, hb, BF_CHKSUM_MOD);
+ if (hr != h_ref) {
+ printf("ntt_mul_error: len=%" PRId_LIMB " fft_len_log2=%d dpl=%d nb_mods=%d\n",
+ len, fft_len_log2, dpl, nb_mods);
+ // printf("ha=0x" FMT_LIMB" hb=0x" FMT_LIMB " hr=0x" FMT_LIMB " expected=0x" FMT_LIMB "\n", ha, hb, hr, h_ref);
+ exit(1);
+ }
+#endif
+ return 0;
+ fail:
+ ntt_free(s, buf1);
+ ntt_free(s, buf2);
+ return -1;
+}
+
+#else /* USE_FFT_MUL */
+
+int bf_get_fft_size(int *pdpl, int *pnb_mods, limb_t len)
+{
+ return 0;
+}
+
+#endif /* !USE_FFT_MUL */
diff --git a/src/couch_quickjs/quickjs/libbf.h b/src/couch_quickjs/quickjs/libbf.h
new file mode 100644
index 0000000..a1436ab
--- /dev/null
+++ b/src/couch_quickjs/quickjs/libbf.h
@@ -0,0 +1,535 @@
+/*
+ * Tiny arbitrary precision floating point library
+ *
+ * Copyright (c) 2017-2021 Fabrice Bellard
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+#ifndef LIBBF_H
+#define LIBBF_H
+
+#include <stddef.h>
+#include <stdint.h>
+
+#if defined(__SIZEOF_INT128__) && (INTPTR_MAX >= INT64_MAX)
+#define LIMB_LOG2_BITS 6
+#else
+#define LIMB_LOG2_BITS 5
+#endif
+
+#define LIMB_BITS (1 << LIMB_LOG2_BITS)
+
+#if LIMB_BITS == 64
+typedef __int128 int128_t;
+typedef unsigned __int128 uint128_t;
+typedef int64_t slimb_t;
+typedef uint64_t limb_t;
+typedef uint128_t dlimb_t;
+#define BF_RAW_EXP_MIN INT64_MIN
+#define BF_RAW_EXP_MAX INT64_MAX
+
+#define LIMB_DIGITS 19
+#define BF_DEC_BASE UINT64_C(10000000000000000000)
+
+#else
+
+typedef int32_t slimb_t;
+typedef uint32_t limb_t;
+typedef uint64_t dlimb_t;
+#define BF_RAW_EXP_MIN INT32_MIN
+#define BF_RAW_EXP_MAX INT32_MAX
+
+#define LIMB_DIGITS 9
+#define BF_DEC_BASE 1000000000U
+
+#endif
+
+/* in bits */
+/* minimum number of bits for the exponent */
+#define BF_EXP_BITS_MIN 3
+/* maximum number of bits for the exponent */
+#define BF_EXP_BITS_MAX (LIMB_BITS - 3)
+/* extended range for exponent, used internally */
+#define BF_EXT_EXP_BITS_MAX (BF_EXP_BITS_MAX + 1)
+/* minimum possible precision */
+#define BF_PREC_MIN 2
+/* minimum possible precision */
+#define BF_PREC_MAX (((limb_t)1 << (LIMB_BITS - 2)) - 2)
+/* some operations support infinite precision */
+#define BF_PREC_INF (BF_PREC_MAX + 1) /* infinite precision */
+
+#if LIMB_BITS == 64
+#define BF_CHKSUM_MOD (UINT64_C(975620677) * UINT64_C(9795002197))
+#else
+#define BF_CHKSUM_MOD 975620677U
+#endif
+
+#define BF_EXP_ZERO BF_RAW_EXP_MIN
+#define BF_EXP_INF (BF_RAW_EXP_MAX - 1)
+#define BF_EXP_NAN BF_RAW_EXP_MAX
+
+/* +/-zero is represented with expn = BF_EXP_ZERO and len = 0,
+ +/-infinity is represented with expn = BF_EXP_INF and len = 0,
+ NaN is represented with expn = BF_EXP_NAN and len = 0 (sign is ignored)
+ */
+typedef struct {
+ struct bf_context_t *ctx;
+ int sign;
+ slimb_t expn;
+ limb_t len;
+ limb_t *tab;
+} bf_t;
+
+typedef struct {
+ /* must be kept identical to bf_t */
+ struct bf_context_t *ctx;
+ int sign;
+ slimb_t expn;
+ limb_t len;
+ limb_t *tab;
+} bfdec_t;
+
+typedef enum {
+ BF_RNDN, /* round to nearest, ties to even */
+ BF_RNDZ, /* round to zero */
+ BF_RNDD, /* round to -inf (the code relies on (BF_RNDD xor BF_RNDU) = 1) */
+ BF_RNDU, /* round to +inf */
+ BF_RNDNA, /* round to nearest, ties away from zero */
+ BF_RNDA, /* round away from zero */
+ BF_RNDF, /* faithful rounding (nondeterministic, either RNDD or RNDU,
+ inexact flag is always set) */
+} bf_rnd_t;
+
+/* allow subnormal numbers. Only available if the number of exponent
+ bits is <= BF_EXP_BITS_USER_MAX and prec != BF_PREC_INF. */
+#define BF_FLAG_SUBNORMAL (1 << 3)
+/* 'prec' is the precision after the radix point instead of the whole
+ mantissa. Can only be used with bf_round() and
+ bfdec_[add|sub|mul|div|sqrt|round](). */
+#define BF_FLAG_RADPNT_PREC (1 << 4)
+
+#define BF_RND_MASK 0x7
+#define BF_EXP_BITS_SHIFT 5
+#define BF_EXP_BITS_MASK 0x3f
+
+/* shortcut for bf_set_exp_bits(BF_EXT_EXP_BITS_MAX) */
+#define BF_FLAG_EXT_EXP (BF_EXP_BITS_MASK << BF_EXP_BITS_SHIFT)
+
+/* contains the rounding mode and number of exponents bits */
+typedef uint32_t bf_flags_t;
+
+typedef void *bf_realloc_func_t(void *opaque, void *ptr, size_t size);
+
+typedef struct {
+ bf_t val;
+ limb_t prec;
+} BFConstCache;
+
+typedef struct bf_context_t {
+ void *realloc_opaque;
+ bf_realloc_func_t *realloc_func;
+ BFConstCache log2_cache;
+ BFConstCache pi_cache;
+ struct BFNTTState *ntt_state;
+} bf_context_t;
+
+static inline int bf_get_exp_bits(bf_flags_t flags)
+{
+ int e;
+ e = (flags >> BF_EXP_BITS_SHIFT) & BF_EXP_BITS_MASK;
+ if (e == BF_EXP_BITS_MASK)
+ return BF_EXP_BITS_MAX + 1;
+ else
+ return BF_EXP_BITS_MAX - e;
+}
+
+static inline bf_flags_t bf_set_exp_bits(int n)
+{
+ return ((BF_EXP_BITS_MAX - n) & BF_EXP_BITS_MASK) << BF_EXP_BITS_SHIFT;
+}
+
+/* returned status */
+#define BF_ST_INVALID_OP (1 << 0)
+#define BF_ST_DIVIDE_ZERO (1 << 1)
+#define BF_ST_OVERFLOW (1 << 2)
+#define BF_ST_UNDERFLOW (1 << 3)
+#define BF_ST_INEXACT (1 << 4)
+/* indicate that a memory allocation error occured. NaN is returned */
+#define BF_ST_MEM_ERROR (1 << 5)
+
+#define BF_RADIX_MAX 36 /* maximum radix for bf_atof() and bf_ftoa() */
+
+static inline slimb_t bf_max(slimb_t a, slimb_t b)
+{
+ if (a > b)
+ return a;
+ else
+ return b;
+}
+
+static inline slimb_t bf_min(slimb_t a, slimb_t b)
+{
+ if (a < b)
+ return a;
+ else
+ return b;
+}
+
+void bf_context_init(bf_context_t *s, bf_realloc_func_t *realloc_func,
+ void *realloc_opaque);
+void bf_context_end(bf_context_t *s);
+/* free memory allocated for the bf cache data */
+void bf_clear_cache(bf_context_t *s);
+
+static inline void *bf_realloc(bf_context_t *s, void *ptr, size_t size)
+{
+ return s->realloc_func(s->realloc_opaque, ptr, size);
+}
+
+/* 'size' must be != 0 */
+static inline void *bf_malloc(bf_context_t *s, size_t size)
+{
+ return bf_realloc(s, NULL, size);
+}
+
+static inline void bf_free(bf_context_t *s, void *ptr)
+{
+ /* must test ptr otherwise equivalent to malloc(0) */
+ if (ptr)
+ bf_realloc(s, ptr, 0);
+}
+
+void bf_init(bf_context_t *s, bf_t *r);
+
+static inline void bf_delete(bf_t *r)
+{
+ bf_context_t *s = r->ctx;
+ /* we accept to delete a zeroed bf_t structure */
+ if (s && r->tab) {
+ bf_realloc(s, r->tab, 0);
+ }
+}
+
+static inline void bf_neg(bf_t *r)
+{
+ r->sign ^= 1;
+}
+
+static inline int bf_is_finite(const bf_t *a)
+{
+ return (a->expn < BF_EXP_INF);
+}
+
+static inline int bf_is_nan(const bf_t *a)
+{
+ return (a->expn == BF_EXP_NAN);
+}
+
+static inline int bf_is_zero(const bf_t *a)
+{
+ return (a->expn == BF_EXP_ZERO);
+}
+
+static inline void bf_memcpy(bf_t *r, const bf_t *a)
+{
+ *r = *a;
+}
+
+int bf_set_ui(bf_t *r, uint64_t a);
+int bf_set_si(bf_t *r, int64_t a);
+void bf_set_nan(bf_t *r);
+void bf_set_zero(bf_t *r, int is_neg);
+void bf_set_inf(bf_t *r, int is_neg);
+int bf_set(bf_t *r, const bf_t *a);
+void bf_move(bf_t *r, bf_t *a);
+int bf_get_float64(const bf_t *a, double *pres, bf_rnd_t rnd_mode);
+int bf_set_float64(bf_t *a, double d);
+
+int bf_cmpu(const bf_t *a, const bf_t *b);
+int bf_cmp_full(const bf_t *a, const bf_t *b);
+int bf_cmp(const bf_t *a, const bf_t *b);
+static inline int bf_cmp_eq(const bf_t *a, const bf_t *b)
+{
+ return bf_cmp(a, b) == 0;
+}
+
+static inline int bf_cmp_le(const bf_t *a, const bf_t *b)
+{
+ return bf_cmp(a, b) <= 0;
+}
+
+static inline int bf_cmp_lt(const bf_t *a, const bf_t *b)
+{
+ return bf_cmp(a, b) < 0;
+}
+
+int bf_add(bf_t *r, const bf_t *a, const bf_t *b, limb_t prec, bf_flags_t flags);
+int bf_sub(bf_t *r, const bf_t *a, const bf_t *b, limb_t prec, bf_flags_t flags);
+int bf_add_si(bf_t *r, const bf_t *a, int64_t b1, limb_t prec, bf_flags_t flags);
+int bf_mul(bf_t *r, const bf_t *a, const bf_t *b, limb_t prec, bf_flags_t flags);
+int bf_mul_ui(bf_t *r, const bf_t *a, uint64_t b1, limb_t prec, bf_flags_t flags);
+int bf_mul_si(bf_t *r, const bf_t *a, int64_t b1, limb_t prec,
+ bf_flags_t flags);
+int bf_mul_2exp(bf_t *r, slimb_t e, limb_t prec, bf_flags_t flags);
+int bf_div(bf_t *r, const bf_t *a, const bf_t *b, limb_t prec, bf_flags_t flags);
+#define BF_DIVREM_EUCLIDIAN BF_RNDF
+int bf_divrem(bf_t *q, bf_t *r, const bf_t *a, const bf_t *b,
+ limb_t prec, bf_flags_t flags, int rnd_mode);
+int bf_rem(bf_t *r, const bf_t *a, const bf_t *b, limb_t prec,
+ bf_flags_t flags, int rnd_mode);
+int bf_remquo(slimb_t *pq, bf_t *r, const bf_t *a, const bf_t *b, limb_t prec,
+ bf_flags_t flags, int rnd_mode);
+/* round to integer with infinite precision */
+int bf_rint(bf_t *r, int rnd_mode);
+int bf_round(bf_t *r, limb_t prec, bf_flags_t flags);
+int bf_sqrtrem(bf_t *r, bf_t *rem1, const bf_t *a);
+int bf_sqrt(bf_t *r, const bf_t *a, limb_t prec, bf_flags_t flags);
+slimb_t bf_get_exp_min(const bf_t *a);
+int bf_logic_or(bf_t *r, const bf_t *a, const bf_t *b);
+int bf_logic_xor(bf_t *r, const bf_t *a, const bf_t *b);
+int bf_logic_and(bf_t *r, const bf_t *a, const bf_t *b);
+
+/* additional flags for bf_atof */
+/* do not accept hex radix prefix (0x or 0X) if radix = 0 or radix = 16 */
+#define BF_ATOF_NO_HEX (1 << 16)
+/* accept binary (0b or 0B) or octal (0o or 0O) radix prefix if radix = 0 */
+#define BF_ATOF_BIN_OCT (1 << 17)
+/* Do not parse NaN or Inf */
+#define BF_ATOF_NO_NAN_INF (1 << 18)
+/* return the exponent separately */
+#define BF_ATOF_EXPONENT (1 << 19)
+
+int bf_atof(bf_t *a, const char *str, const char **pnext, int radix,
+ limb_t prec, bf_flags_t flags);
+/* this version accepts prec = BF_PREC_INF and returns the radix
+ exponent */
+int bf_atof2(bf_t *r, slimb_t *pexponent,
+ const char *str, const char **pnext, int radix,
+ limb_t prec, bf_flags_t flags);
+int bf_mul_pow_radix(bf_t *r, const bf_t *T, limb_t radix,
+ slimb_t expn, limb_t prec, bf_flags_t flags);
+
+
+/* Conversion of floating point number to string. Return a null
+ terminated string or NULL if memory error. *plen contains its
+ length if plen != NULL. The exponent letter is "e" for base 10,
+ "p" for bases 2, 8, 16 with a binary exponent and "@" for the other
+ bases. */
+
+#define BF_FTOA_FORMAT_MASK (3 << 16)
+
+/* fixed format: prec significant digits rounded with (flags &
+ BF_RND_MASK). Exponential notation is used if too many zeros are
+ needed.*/
+#define BF_FTOA_FORMAT_FIXED (0 << 16)
+/* fractional format: prec digits after the decimal point rounded with
+ (flags & BF_RND_MASK) */
+#define BF_FTOA_FORMAT_FRAC (1 << 16)
+/* free format:
+
+ For binary radices with bf_ftoa() and for bfdec_ftoa(): use the minimum
+ number of digits to represent 'a'. The precision and the rounding
+ mode are ignored.
+
+ For the non binary radices with bf_ftoa(): use as many digits as
+ necessary so that bf_atof() return the same number when using
+ precision 'prec', rounding to nearest and the subnormal
+ configuration of 'flags'. The result is meaningful only if 'a' is
+ already rounded to 'prec' bits. If the subnormal flag is set, the
+ exponent in 'flags' must also be set to the desired exponent range.
+*/
+#define BF_FTOA_FORMAT_FREE (2 << 16)
+/* same as BF_FTOA_FORMAT_FREE but uses the minimum number of digits
+ (takes more computation time). Identical to BF_FTOA_FORMAT_FREE for
+ binary radices with bf_ftoa() and for bfdec_ftoa(). */
+#define BF_FTOA_FORMAT_FREE_MIN (3 << 16)
+
+/* force exponential notation for fixed or free format */
+#define BF_FTOA_FORCE_EXP (1 << 20)
+/* add 0x prefix for base 16, 0o prefix for base 8 or 0b prefix for
+ base 2 if non zero value */
+#define BF_FTOA_ADD_PREFIX (1 << 21)
+/* return "Infinity" instead of "Inf" and add a "+" for positive
+ exponents */
+#define BF_FTOA_JS_QUIRKS (1 << 22)
+
+char *bf_ftoa(size_t *plen, const bf_t *a, int radix, limb_t prec,
+ bf_flags_t flags);
+
+/* modulo 2^n instead of saturation. NaN and infinity return 0 */
+#define BF_GET_INT_MOD (1 << 0)
+int bf_get_int32(int *pres, const bf_t *a, int flags);
+int bf_get_int64(int64_t *pres, const bf_t *a, int flags);
+int bf_get_uint64(uint64_t *pres, const bf_t *a);
+
+/* the following functions are exported for testing only. */
+void mp_print_str(const char *str, const limb_t *tab, limb_t n);
+void bf_print_str(const char *str, const bf_t *a);
+int bf_resize(bf_t *r, limb_t len);
+int bf_get_fft_size(int *pdpl, int *pnb_mods, limb_t len);
+int bf_normalize_and_round(bf_t *r, limb_t prec1, bf_flags_t flags);
+int bf_can_round(const bf_t *a, slimb_t prec, bf_rnd_t rnd_mode, slimb_t k);
+slimb_t bf_mul_log2_radix(slimb_t a1, unsigned int radix, int is_inv,
+ int is_ceil1);
+int mp_mul(bf_context_t *s, limb_t *result,
+ const limb_t *op1, limb_t op1_size,
+ const limb_t *op2, limb_t op2_size);
+limb_t mp_add(limb_t *res, const limb_t *op1, const limb_t *op2,
+ limb_t n, limb_t carry);
+limb_t mp_add_ui(limb_t *tab, limb_t b, size_t n);
+int mp_sqrtrem(bf_context_t *s, limb_t *tabs, limb_t *taba, limb_t n);
+int mp_recip(bf_context_t *s, limb_t *tabr, const limb_t *taba, limb_t n);
+limb_t bf_isqrt(limb_t a);
+
+/* transcendental functions */
+int bf_const_log2(bf_t *T, limb_t prec, bf_flags_t flags);
+int bf_const_pi(bf_t *T, limb_t prec, bf_flags_t flags);
+int bf_exp(bf_t *r, const bf_t *a, limb_t prec, bf_flags_t flags);
+int bf_log(bf_t *r, const bf_t *a, limb_t prec, bf_flags_t flags);
+#define BF_POW_JS_QUIRKS (1 << 16) /* (+/-1)^(+/-Inf) = NaN, 1^NaN = NaN */
+int bf_pow(bf_t *r, const bf_t *x, const bf_t *y, limb_t prec, bf_flags_t flags);
+int bf_cos(bf_t *r, const bf_t *a, limb_t prec, bf_flags_t flags);
+int bf_sin(bf_t *r, const bf_t *a, limb_t prec, bf_flags_t flags);
+int bf_tan(bf_t *r, const bf_t *a, limb_t prec, bf_flags_t flags);
+int bf_atan(bf_t *r, const bf_t *a, limb_t prec, bf_flags_t flags);
+int bf_atan2(bf_t *r, const bf_t *y, const bf_t *x,
+ limb_t prec, bf_flags_t flags);
+int bf_asin(bf_t *r, const bf_t *a, limb_t prec, bf_flags_t flags);
+int bf_acos(bf_t *r, const bf_t *a, limb_t prec, bf_flags_t flags);
+
+/* decimal floating point */
+
+static inline void bfdec_init(bf_context_t *s, bfdec_t *r)
+{
+ bf_init(s, (bf_t *)r);
+}
+static inline void bfdec_delete(bfdec_t *r)
+{
+ bf_delete((bf_t *)r);
+}
+
+static inline void bfdec_neg(bfdec_t *r)
+{
+ r->sign ^= 1;
+}
+
+static inline int bfdec_is_finite(const bfdec_t *a)
+{
+ return (a->expn < BF_EXP_INF);
+}
+
+static inline int bfdec_is_nan(const bfdec_t *a)
+{
+ return (a->expn == BF_EXP_NAN);
+}
+
+static inline int bfdec_is_zero(const bfdec_t *a)
+{
+ return (a->expn == BF_EXP_ZERO);
+}
+
+static inline void bfdec_memcpy(bfdec_t *r, const bfdec_t *a)
+{
+ bf_memcpy((bf_t *)r, (const bf_t *)a);
+}
+
+int bfdec_set_ui(bfdec_t *r, uint64_t a);
+int bfdec_set_si(bfdec_t *r, int64_t a);
+
+static inline void bfdec_set_nan(bfdec_t *r)
+{
+ bf_set_nan((bf_t *)r);
+}
+static inline void bfdec_set_zero(bfdec_t *r, int is_neg)
+{
+ bf_set_zero((bf_t *)r, is_neg);
+}
+static inline void bfdec_set_inf(bfdec_t *r, int is_neg)
+{
+ bf_set_inf((bf_t *)r, is_neg);
+}
+static inline int bfdec_set(bfdec_t *r, const bfdec_t *a)
+{
+ return bf_set((bf_t *)r, (bf_t *)a);
+}
+static inline void bfdec_move(bfdec_t *r, bfdec_t *a)
+{
+ bf_move((bf_t *)r, (bf_t *)a);
+}
+static inline int bfdec_cmpu(const bfdec_t *a, const bfdec_t *b)
+{
+ return bf_cmpu((const bf_t *)a, (const bf_t *)b);
+}
+static inline int bfdec_cmp_full(const bfdec_t *a, const bfdec_t *b)
+{
+ return bf_cmp_full((const bf_t *)a, (const bf_t *)b);
+}
+static inline int bfdec_cmp(const bfdec_t *a, const bfdec_t *b)
+{
+ return bf_cmp((const bf_t *)a, (const bf_t *)b);
+}
+static inline int bfdec_cmp_eq(const bfdec_t *a, const bfdec_t *b)
+{
+ return bfdec_cmp(a, b) == 0;
+}
+static inline int bfdec_cmp_le(const bfdec_t *a, const bfdec_t *b)
+{
+ return bfdec_cmp(a, b) <= 0;
+}
+static inline int bfdec_cmp_lt(const bfdec_t *a, const bfdec_t *b)
+{
+ return bfdec_cmp(a, b) < 0;
+}
+
+int bfdec_add(bfdec_t *r, const bfdec_t *a, const bfdec_t *b, limb_t prec,
+ bf_flags_t flags);
+int bfdec_sub(bfdec_t *r, const bfdec_t *a, const bfdec_t *b, limb_t prec,
+ bf_flags_t flags);
+int bfdec_add_si(bfdec_t *r, const bfdec_t *a, int64_t b1, limb_t prec,
+ bf_flags_t flags);
+int bfdec_mul(bfdec_t *r, const bfdec_t *a, const bfdec_t *b, limb_t prec,
+ bf_flags_t flags);
+int bfdec_mul_si(bfdec_t *r, const bfdec_t *a, int64_t b1, limb_t prec,
+ bf_flags_t flags);
+int bfdec_div(bfdec_t *r, const bfdec_t *a, const bfdec_t *b, limb_t prec,
+ bf_flags_t flags);
+int bfdec_divrem(bfdec_t *q, bfdec_t *r, const bfdec_t *a, const bfdec_t *b,
+ limb_t prec, bf_flags_t flags, int rnd_mode);
+int bfdec_rem(bfdec_t *r, const bfdec_t *a, const bfdec_t *b, limb_t prec,
+ bf_flags_t flags, int rnd_mode);
+int bfdec_rint(bfdec_t *r, int rnd_mode);
+int bfdec_sqrt(bfdec_t *r, const bfdec_t *a, limb_t prec, bf_flags_t flags);
+int bfdec_round(bfdec_t *r, limb_t prec, bf_flags_t flags);
+int bfdec_get_int32(int *pres, const bfdec_t *a);
+int bfdec_pow_ui(bfdec_t *r, const bfdec_t *a, limb_t b);
+
+char *bfdec_ftoa(size_t *plen, const bfdec_t *a, limb_t prec, bf_flags_t flags);
+int bfdec_atof(bfdec_t *r, const char *str, const char **pnext,
+ limb_t prec, bf_flags_t flags);
+
+/* the following functions are exported for testing only. */
+extern const limb_t mp_pow_dec[LIMB_DIGITS + 1];
+void bfdec_print_str(const char *str, const bfdec_t *a);
+static inline int bfdec_resize(bfdec_t *r, limb_t len)
+{
+ return bf_resize((bf_t *)r, len);
+}
+int bfdec_normalize_and_round(bfdec_t *r, limb_t prec1, bf_flags_t flags);
+
+#endif /* LIBBF_H */
diff --git a/src/couch_quickjs/quickjs/libregexp-opcode.h b/src/couch_quickjs/quickjs/libregexp-opcode.h
new file mode 100644
index 0000000..f255e09
--- /dev/null
+++ b/src/couch_quickjs/quickjs/libregexp-opcode.h
@@ -0,0 +1,57 @@
+/*
+ * Regular Expression Engine
+ *
+ * Copyright (c) 2017-2018 Fabrice Bellard
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifdef DEF
+
+DEF(invalid, 1) /* never used */
+DEF(char, 3)
+DEF(char32, 5)
+DEF(dot, 1)
+DEF(any, 1) /* same as dot but match any character including line terminator */
+DEF(line_start, 1)
+DEF(line_end, 1)
+DEF(goto, 5)
+DEF(split_goto_first, 5)
+DEF(split_next_first, 5)
+DEF(match, 1)
+DEF(save_start, 2) /* save start position */
+DEF(save_end, 2) /* save end position, must come after saved_start */
+DEF(save_reset, 3) /* reset save positions */
+DEF(loop, 5) /* decrement the top the stack and goto if != 0 */
+DEF(push_i32, 5) /* push integer on the stack */
+DEF(drop, 1)
+DEF(word_boundary, 1)
+DEF(not_word_boundary, 1)
+DEF(back_reference, 2)
+DEF(backward_back_reference, 2) /* must come after back_reference */
+DEF(range, 3) /* variable length */
+DEF(range32, 3) /* variable length */
+DEF(lookahead, 5)
+DEF(negative_lookahead, 5)
+DEF(push_char_pos, 1) /* push the character position on the stack */
+DEF(check_advance, 1) /* pop one stack element and check that it is different from the character position */
+DEF(prev, 1) /* go to the previous char */
+DEF(simple_greedy_quant, 17)
+
+#endif /* DEF */
diff --git a/src/couch_quickjs/quickjs/libregexp.c b/src/couch_quickjs/quickjs/libregexp.c
new file mode 100644
index 0000000..1091506
--- /dev/null
+++ b/src/couch_quickjs/quickjs/libregexp.c
@@ -0,0 +1,2503 @@
+/*
+ * Regular Expression Engine
+ *
+ * Copyright (c) 2017-2018 Fabrice Bellard
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdarg.h>
+#include <inttypes.h>
+#include <string.h>
+#include <assert.h>
+
+#include "cutils.h"
+#include "libregexp.h"
+#include "libunicode.h"
+
+/*
+ TODO:
+
+ - Add a lock step execution mode (=linear time execution guaranteed)
+ when the regular expression is "simple" i.e. no backreference nor
+ complicated lookahead. The opcodes are designed for this execution
+ model.
+*/
+
+#if defined(TEST)
+#define DUMP_REOP
+#endif
+
+typedef enum {
+#define DEF(id, size) REOP_ ## id,
+#include "libregexp-opcode.h"
+#undef DEF
+ REOP_COUNT,
+} REOPCodeEnum;
+
+#define CAPTURE_COUNT_MAX 255
+#define STACK_SIZE_MAX 255
+
+/* unicode code points */
+#define CP_LS 0x2028
+#define CP_PS 0x2029
+
+#define TMP_BUF_SIZE 128
+
+typedef struct {
+ DynBuf byte_code;
+ const uint8_t *buf_ptr;
+ const uint8_t *buf_end;
+ const uint8_t *buf_start;
+ int re_flags;
+ BOOL is_unicode;
+ BOOL ignore_case;
+ BOOL dotall;
+ int capture_count;
+ int total_capture_count; /* -1 = not computed yet */
+ int has_named_captures; /* -1 = don't know, 0 = no, 1 = yes */
+ void *opaque;
+ DynBuf group_names;
+ union {
+ char error_msg[TMP_BUF_SIZE];
+ char tmp_buf[TMP_BUF_SIZE];
+ } u;
+} REParseState;
+
+typedef struct {
+#ifdef DUMP_REOP
+ const char *name;
+#endif
+ uint8_t size;
+} REOpCode;
+
+static const REOpCode reopcode_info[REOP_COUNT] = {
+#ifdef DUMP_REOP
+#define DEF(id, size) { #id, size },
+#else
+#define DEF(id, size) { size },
+#endif
+#include "libregexp-opcode.h"
+#undef DEF
+};
+
+#define RE_HEADER_FLAGS 0
+#define RE_HEADER_CAPTURE_COUNT 1
+#define RE_HEADER_STACK_SIZE 2
+#define RE_HEADER_BYTECODE_LEN 3
+
+#define RE_HEADER_LEN 7
+
+static inline int is_digit(int c) {
+ return c >= '0' && c <= '9';
+}
+
+/* insert 'len' bytes at position 'pos'. Return < 0 if error. */
+static int dbuf_insert(DynBuf *s, int pos, int len)
+{
+ if (dbuf_realloc(s, s->size + len))
+ return -1;
+ memmove(s->buf + pos + len, s->buf + pos, s->size - pos);
+ s->size += len;
+ return 0;
+}
+
+static const uint16_t char_range_d[] = {
+ 1,
+ 0x0030, 0x0039 + 1,
+};
+
+/* code point ranges for Zs,Zl or Zp property */
+static const uint16_t char_range_s[] = {
+ 10,
+ 0x0009, 0x000D + 1,
+ 0x0020, 0x0020 + 1,
+ 0x00A0, 0x00A0 + 1,
+ 0x1680, 0x1680 + 1,
+ 0x2000, 0x200A + 1,
+ /* 2028;LINE SEPARATOR;Zl;0;WS;;;;;N;;;;; */
+ /* 2029;PARAGRAPH SEPARATOR;Zp;0;B;;;;;N;;;;; */
+ 0x2028, 0x2029 + 1,
+ 0x202F, 0x202F + 1,
+ 0x205F, 0x205F + 1,
+ 0x3000, 0x3000 + 1,
+ /* FEFF;ZERO WIDTH NO-BREAK SPACE;Cf;0;BN;;;;;N;BYTE ORDER MARK;;;; */
+ 0xFEFF, 0xFEFF + 1,
+};
+
+static const uint16_t char_range_w[] = {
+ 4,
+ 0x0030, 0x0039 + 1,
+ 0x0041, 0x005A + 1,
+ 0x005F, 0x005F + 1,
+ 0x0061, 0x007A + 1,
+};
+
+#define CLASS_RANGE_BASE 0x40000000
+
+typedef enum {
+ CHAR_RANGE_d,
+ CHAR_RANGE_D,
+ CHAR_RANGE_s,
+ CHAR_RANGE_S,
+ CHAR_RANGE_w,
+ CHAR_RANGE_W,
+} CharRangeEnum;
+
+static const uint16_t * const char_range_table[] = {
+ char_range_d,
+ char_range_s,
+ char_range_w,
+};
+
+static int cr_init_char_range(REParseState *s, CharRange *cr, uint32_t c)
+{
+ BOOL invert;
+ const uint16_t *c_pt;
+ int len, i;
+
+ invert = c & 1;
+ c_pt = char_range_table[c >> 1];
+ len = *c_pt++;
+ cr_init(cr, s->opaque, lre_realloc);
+ for(i = 0; i < len * 2; i++) {
+ if (cr_add_point(cr, c_pt[i]))
+ goto fail;
+ }
+ if (invert) {
+ if (cr_invert(cr))
+ goto fail;
+ }
+ return 0;
+ fail:
+ cr_free(cr);
+ return -1;
+}
+
+#ifdef DUMP_REOP
+static __maybe_unused void lre_dump_bytecode(const uint8_t *buf,
+ int buf_len)
+{
+ int pos, len, opcode, bc_len, re_flags, i;
+ uint32_t val;
+
+ assert(buf_len >= RE_HEADER_LEN);
+
+ re_flags = lre_get_flags(buf);
+ bc_len = get_u32(buf + RE_HEADER_BYTECODE_LEN);
+ assert(bc_len + RE_HEADER_LEN <= buf_len);
+ printf("flags: 0x%x capture_count=%d stack_size=%d\n",
+ re_flags, buf[RE_HEADER_CAPTURE_COUNT], buf[RE_HEADER_STACK_SIZE]);
+ if (re_flags & LRE_FLAG_NAMED_GROUPS) {
+ const char *p;
+ p = (char *)buf + RE_HEADER_LEN + bc_len;
+ printf("named groups: ");
+ for(i = 1; i < buf[RE_HEADER_CAPTURE_COUNT]; i++) {
+ if (i != 1)
+ printf(",");
+ printf("<%s>", p);
+ p += strlen(p) + 1;
+ }
+ printf("\n");
+ assert(p == (char *)(buf + buf_len));
+ }
+ printf("bytecode_len=%d\n", bc_len);
+
+ buf += RE_HEADER_LEN;
+ pos = 0;
+ while (pos < bc_len) {
+ printf("%5u: ", pos);
+ opcode = buf[pos];
+ len = reopcode_info[opcode].size;
+ if (opcode >= REOP_COUNT) {
+ printf(" invalid opcode=0x%02x\n", opcode);
+ break;
+ }
+ if ((pos + len) > bc_len) {
+ printf(" buffer overflow (opcode=0x%02x)\n", opcode);
+ break;
+ }
+ printf("%s", reopcode_info[opcode].name);
+ switch(opcode) {
+ case REOP_char:
+ val = get_u16(buf + pos + 1);
+ if (val >= ' ' && val <= 126)
+ printf(" '%c'", val);
+ else
+ printf(" 0x%04x", val);
+ break;
+ case REOP_char32:
+ val = get_u32(buf + pos + 1);
+ if (val >= ' ' && val <= 126)
+ printf(" '%c'", val);
+ else
+ printf(" 0x%08x", val);
+ break;
+ case REOP_goto:
+ case REOP_split_goto_first:
+ case REOP_split_next_first:
+ case REOP_loop:
+ case REOP_lookahead:
+ case REOP_negative_lookahead:
+ val = get_u32(buf + pos + 1);
+ val += (pos + 5);
+ printf(" %u", val);
+ break;
+ case REOP_simple_greedy_quant:
+ printf(" %u %u %u %u",
+ get_u32(buf + pos + 1) + (pos + 17),
+ get_u32(buf + pos + 1 + 4),
+ get_u32(buf + pos + 1 + 8),
+ get_u32(buf + pos + 1 + 12));
+ break;
+ case REOP_save_start:
+ case REOP_save_end:
+ case REOP_back_reference:
+ case REOP_backward_back_reference:
+ printf(" %u", buf[pos + 1]);
+ break;
+ case REOP_save_reset:
+ printf(" %u %u", buf[pos + 1], buf[pos + 2]);
+ break;
+ case REOP_push_i32:
+ val = get_u32(buf + pos + 1);
+ printf(" %d", val);
+ break;
+ case REOP_range:
+ {
+ int n, i;
+ n = get_u16(buf + pos + 1);
+ len += n * 4;
+ for(i = 0; i < n * 2; i++) {
+ val = get_u16(buf + pos + 3 + i * 2);
+ printf(" 0x%04x", val);
+ }
+ }
+ break;
+ case REOP_range32:
+ {
+ int n, i;
+ n = get_u16(buf + pos + 1);
+ len += n * 8;
+ for(i = 0; i < n * 2; i++) {
+ val = get_u32(buf + pos + 3 + i * 4);
+ printf(" 0x%08x", val);
+ }
+ }
+ break;
+ default:
+ break;
+ }
+ printf("\n");
+ pos += len;
+ }
+}
+#endif
+
+static void re_emit_op(REParseState *s, int op)
+{
+ dbuf_putc(&s->byte_code, op);
+}
+
+/* return the offset of the u32 value */
+static int re_emit_op_u32(REParseState *s, int op, uint32_t val)
+{
+ int pos;
+ dbuf_putc(&s->byte_code, op);
+ pos = s->byte_code.size;
+ dbuf_put_u32(&s->byte_code, val);
+ return pos;
+}
+
+static int re_emit_goto(REParseState *s, int op, uint32_t val)
+{
+ int pos;
+ dbuf_putc(&s->byte_code, op);
+ pos = s->byte_code.size;
+ dbuf_put_u32(&s->byte_code, val - (pos + 4));
+ return pos;
+}
+
+static void re_emit_op_u8(REParseState *s, int op, uint32_t val)
+{
+ dbuf_putc(&s->byte_code, op);
+ dbuf_putc(&s->byte_code, val);
+}
+
+static void re_emit_op_u16(REParseState *s, int op, uint32_t val)
+{
+ dbuf_putc(&s->byte_code, op);
+ dbuf_put_u16(&s->byte_code, val);
+}
+
+static int __attribute__((format(printf, 2, 3))) re_parse_error(REParseState *s, const char *fmt, ...)
+{
+ va_list ap;
+ va_start(ap, fmt);
+ vsnprintf(s->u.error_msg, sizeof(s->u.error_msg), fmt, ap);
+ va_end(ap);
+ return -1;
+}
+
+static int re_parse_out_of_memory(REParseState *s)
+{
+ return re_parse_error(s, "out of memory");
+}
+
+/* If allow_overflow is false, return -1 in case of
+ overflow. Otherwise return INT32_MAX. */
+static int parse_digits(const uint8_t **pp, BOOL allow_overflow)
+{
+ const uint8_t *p;
+ uint64_t v;
+ int c;
+
+ p = *pp;
+ v = 0;
+ for(;;) {
+ c = *p;
+ if (c < '0' || c > '9')
+ break;
+ v = v * 10 + c - '0';
+ if (v >= INT32_MAX) {
+ if (allow_overflow)
+ v = INT32_MAX;
+ else
+ return -1;
+ }
+ p++;
+ }
+ *pp = p;
+ return v;
+}
+
+static int re_parse_expect(REParseState *s, const uint8_t **pp, int c)
+{
+ const uint8_t *p;
+ p = *pp;
+ if (*p != c)
+ return re_parse_error(s, "expecting '%c'", c);
+ p++;
+ *pp = p;
+ return 0;
+}
+
+/* Parse an escape sequence, *pp points after the '\':
+ allow_utf16 value:
+ 0 : no UTF-16 escapes allowed
+ 1 : UTF-16 escapes allowed
+ 2 : UTF-16 escapes allowed and escapes of surrogate pairs are
+ converted to a unicode character (unicode regexp case).
+
+ Return the unicode char and update *pp if recognized,
+ return -1 if malformed escape,
+ return -2 otherwise. */
+int lre_parse_escape(const uint8_t **pp, int allow_utf16)
+{
+ const uint8_t *p;
+ uint32_t c;
+
+ p = *pp;
+ c = *p++;
+ switch(c) {
+ case 'b':
+ c = '\b';
+ break;
+ case 'f':
+ c = '\f';
+ break;
+ case 'n':
+ c = '\n';
+ break;
+ case 'r':
+ c = '\r';
+ break;
+ case 't':
+ c = '\t';
+ break;
+ case 'v':
+ c = '\v';
+ break;
+ case 'x':
+ case 'u':
+ {
+ int h, n, i;
+ uint32_t c1;
+
+ if (*p == '{' && allow_utf16) {
+ p++;
+ c = 0;
+ for(;;) {
+ h = from_hex(*p++);
+ if (h < 0)
+ return -1;
+ c = (c << 4) | h;
+ if (c > 0x10FFFF)
+ return -1;
+ if (*p == '}')
+ break;
+ }
+ p++;
+ } else {
+ if (c == 'x') {
+ n = 2;
+ } else {
+ n = 4;
+ }
+
+ c = 0;
+ for(i = 0; i < n; i++) {
+ h = from_hex(*p++);
+ if (h < 0) {
+ return -1;
+ }
+ c = (c << 4) | h;
+ }
+ if (is_hi_surrogate(c) &&
+ allow_utf16 == 2 && p[0] == '\\' && p[1] == 'u') {
+ /* convert an escaped surrogate pair into a
+ unicode char */
+ c1 = 0;
+ for(i = 0; i < 4; i++) {
+ h = from_hex(p[2 + i]);
+ if (h < 0)
+ break;
+ c1 = (c1 << 4) | h;
+ }
+ if (i == 4 && is_lo_surrogate(c1)) {
+ p += 6;
+ c = from_surrogate(c, c1);
+ }
+ }
+ }
+ }
+ break;
+ case '0': case '1': case '2': case '3':
+ case '4': case '5': case '6': case '7':
+ c -= '0';
+ if (allow_utf16 == 2) {
+ /* only accept \0 not followed by digit */
+ if (c != 0 || is_digit(*p))
+ return -1;
+ } else {
+ /* parse a legacy octal sequence */
+ uint32_t v;
+ v = *p - '0';
+ if (v > 7)
+ break;
+ c = (c << 3) | v;
+ p++;
+ if (c >= 32)
+ break;
+ v = *p - '0';
+ if (v > 7)
+ break;
+ c = (c << 3) | v;
+ p++;
+ }
+ break;
+ default:
+ return -2;
+ }
+ *pp = p;
+ return c;
+}
+
+#ifdef CONFIG_ALL_UNICODE
+/* XXX: we use the same chars for name and value */
+static BOOL is_unicode_char(int c)
+{
+ return ((c >= '0' && c <= '9') ||
+ (c >= 'A' && c <= 'Z') ||
+ (c >= 'a' && c <= 'z') ||
+ (c == '_'));
+}
+
+static int parse_unicode_property(REParseState *s, CharRange *cr,
+ const uint8_t **pp, BOOL is_inv)
+{
+ const uint8_t *p;
+ char name[64], value[64];
+ char *q;
+ BOOL script_ext;
+ int ret;
+
+ p = *pp;
+ if (*p != '{')
+ return re_parse_error(s, "expecting '{' after \\p");
+ p++;
+ q = name;
+ while (is_unicode_char(*p)) {
+ if ((q - name) >= sizeof(name) - 1)
+ goto unknown_property_name;
+ *q++ = *p++;
+ }
+ *q = '\0';
+ q = value;
+ if (*p == '=') {
+ p++;
+ while (is_unicode_char(*p)) {
+ if ((q - value) >= sizeof(value) - 1)
+ return re_parse_error(s, "unknown unicode property value");
+ *q++ = *p++;
+ }
+ }
+ *q = '\0';
+ if (*p != '}')
+ return re_parse_error(s, "expecting '}'");
+ p++;
+ // printf("name=%s value=%s\n", name, value);
+
+ if (!strcmp(name, "Script") || !strcmp(name, "sc")) {
+ script_ext = FALSE;
+ goto do_script;
+ } else if (!strcmp(name, "Script_Extensions") || !strcmp(name, "scx")) {
+ script_ext = TRUE;
+ do_script:
+ cr_init(cr, s->opaque, lre_realloc);
+ ret = unicode_script(cr, value, script_ext);
+ if (ret) {
+ cr_free(cr);
+ if (ret == -2)
+ return re_parse_error(s, "unknown unicode script");
+ else
+ goto out_of_memory;
+ }
+ } else if (!strcmp(name, "General_Category") || !strcmp(name, "gc")) {
+ cr_init(cr, s->opaque, lre_realloc);
+ ret = unicode_general_category(cr, value);
+ if (ret) {
+ cr_free(cr);
+ if (ret == -2)
+ return re_parse_error(s, "unknown unicode general category");
+ else
+ goto out_of_memory;
+ }
+ } else if (value[0] == '\0') {
+ cr_init(cr, s->opaque, lre_realloc);
+ ret = unicode_general_category(cr, name);
+ if (ret == -1) {
+ cr_free(cr);
+ goto out_of_memory;
+ }
+ if (ret < 0) {
+ ret = unicode_prop(cr, name);
+ if (ret) {
+ cr_free(cr);
+ if (ret == -2)
+ goto unknown_property_name;
+ else
+ goto out_of_memory;
+ }
+ }
+ } else {
+ unknown_property_name:
+ return re_parse_error(s, "unknown unicode property name");
+ }
+
+ if (is_inv) {
+ if (cr_invert(cr)) {
+ cr_free(cr);
+ return -1;
+ }
+ }
+ *pp = p;
+ return 0;
+ out_of_memory:
+ return re_parse_out_of_memory(s);
+}
+#endif /* CONFIG_ALL_UNICODE */
+
+/* return -1 if error otherwise the character or a class range
+ (CLASS_RANGE_BASE). In case of class range, 'cr' is
+ initialized. Otherwise, it is ignored. */
+static int get_class_atom(REParseState *s, CharRange *cr,
+ const uint8_t **pp, BOOL inclass)
+{
+ const uint8_t *p;
+ uint32_t c;
+ int ret;
+
+ p = *pp;
+
+ c = *p;
+ switch(c) {
+ case '\\':
+ p++;
+ if (p >= s->buf_end)
+ goto unexpected_end;
+ c = *p++;
+ switch(c) {
+ case 'd':
+ c = CHAR_RANGE_d;
+ goto class_range;
+ case 'D':
+ c = CHAR_RANGE_D;
+ goto class_range;
+ case 's':
+ c = CHAR_RANGE_s;
+ goto class_range;
+ case 'S':
+ c = CHAR_RANGE_S;
+ goto class_range;
+ case 'w':
+ c = CHAR_RANGE_w;
+ goto class_range;
+ case 'W':
+ c = CHAR_RANGE_W;
+ class_range:
+ if (cr_init_char_range(s, cr, c))
+ return -1;
+ c = CLASS_RANGE_BASE;
+ break;
+ case 'c':
+ c = *p;
+ if ((c >= 'a' && c <= 'z') ||
+ (c >= 'A' && c <= 'Z') ||
+ (((c >= '0' && c <= '9') || c == '_') &&
+ inclass && !s->is_unicode)) { /* Annex B.1.4 */
+ c &= 0x1f;
+ p++;
+ } else if (s->is_unicode) {
+ goto invalid_escape;
+ } else {
+ /* otherwise return '\' and 'c' */
+ p--;
+ c = '\\';
+ }
+ break;
+#ifdef CONFIG_ALL_UNICODE
+ case 'p':
+ case 'P':
+ if (s->is_unicode) {
+ if (parse_unicode_property(s, cr, &p, (c == 'P')))
+ return -1;
+ c = CLASS_RANGE_BASE;
+ break;
+ }
+ /* fall thru */
+#endif
+ default:
+ p--;
+ ret = lre_parse_escape(&p, s->is_unicode * 2);
+ if (ret >= 0) {
+ c = ret;
+ } else {
+ if (ret == -2 && *p != '\0' && strchr("^$\\.*+?()[]{}|/", *p)) {
+ /* always valid to escape these characters */
+ goto normal_char;
+ } else if (s->is_unicode) {
+ invalid_escape:
+ return re_parse_error(s, "invalid escape sequence in regular expression");
+ } else {
+ /* just ignore the '\' */
+ goto normal_char;
+ }
+ }
+ break;
+ }
+ break;
+ case '\0':
+ if (p >= s->buf_end) {
+ unexpected_end:
+ return re_parse_error(s, "unexpected end");
+ }
+ /* fall thru */
+ default:
+ normal_char:
+ /* normal char */
+ if (c >= 128) {
+ c = unicode_from_utf8(p, UTF8_CHAR_LEN_MAX, &p);
+ if ((unsigned)c > 0xffff && !s->is_unicode) {
+ /* XXX: should handle non BMP-1 code points */
+ return re_parse_error(s, "malformed unicode char");
+ }
+ } else {
+ p++;
+ }
+ break;
+ }
+ *pp = p;
+ return c;
+}
+
+static int re_emit_range(REParseState *s, const CharRange *cr)
+{
+ int len, i;
+ uint32_t high;
+
+ len = (unsigned)cr->len / 2;
+ if (len >= 65535)
+ return re_parse_error(s, "too many ranges");
+ if (len == 0) {
+ /* not sure it can really happen. Emit a match that is always
+ false */
+ re_emit_op_u32(s, REOP_char32, -1);
+ } else {
+ high = cr->points[cr->len - 1];
+ if (high == UINT32_MAX)
+ high = cr->points[cr->len - 2];
+ if (high <= 0xffff) {
+ /* can use 16 bit ranges with the conversion that 0xffff =
+ infinity */
+ re_emit_op_u16(s, REOP_range, len);
+ for(i = 0; i < cr->len; i += 2) {
+ dbuf_put_u16(&s->byte_code, cr->points[i]);
+ high = cr->points[i + 1] - 1;
+ if (high == UINT32_MAX - 1)
+ high = 0xffff;
+ dbuf_put_u16(&s->byte_code, high);
+ }
+ } else {
+ re_emit_op_u16(s, REOP_range32, len);
+ for(i = 0; i < cr->len; i += 2) {
+ dbuf_put_u32(&s->byte_code, cr->points[i]);
+ dbuf_put_u32(&s->byte_code, cr->points[i + 1] - 1);
+ }
+ }
+ }
+ return 0;
+}
+
+static int re_parse_char_class(REParseState *s, const uint8_t **pp)
+{
+ const uint8_t *p;
+ uint32_t c1, c2;
+ CharRange cr_s, *cr = &cr_s;
+ CharRange cr1_s, *cr1 = &cr1_s;
+ BOOL invert;
+
+ cr_init(cr, s->opaque, lre_realloc);
+ p = *pp;
+ p++; /* skip '[' */
+
+ invert = FALSE;
+ if (*p == '^') {
+ p++;
+ invert = TRUE;
+ }
+
+ for(;;) {
+ if (*p == ']')
+ break;
+ c1 = get_class_atom(s, cr1, &p, TRUE);
+ if ((int)c1 < 0)
+ goto fail;
+ if (*p == '-' && p[1] != ']') {
+ const uint8_t *p0 = p + 1;
+ if (c1 >= CLASS_RANGE_BASE) {
+ if (s->is_unicode) {
+ cr_free(cr1);
+ goto invalid_class_range;
+ }
+ /* Annex B: match '-' character */
+ goto class_atom;
+ }
+ c2 = get_class_atom(s, cr1, &p0, TRUE);
+ if ((int)c2 < 0)
+ goto fail;
+ if (c2 >= CLASS_RANGE_BASE) {
+ cr_free(cr1);
+ if (s->is_unicode) {
+ goto invalid_class_range;
+ }
+ /* Annex B: match '-' character */
+ goto class_atom;
+ }
+ p = p0;
+ if (c2 < c1) {
+ invalid_class_range:
+ re_parse_error(s, "invalid class range");
+ goto fail;
+ }
+ if (cr_union_interval(cr, c1, c2))
+ goto memory_error;
+ } else {
+ class_atom:
+ if (c1 >= CLASS_RANGE_BASE) {
+ int ret;
+ ret = cr_union1(cr, cr1->points, cr1->len);
+ cr_free(cr1);
+ if (ret)
+ goto memory_error;
+ } else {
+ if (cr_union_interval(cr, c1, c1))
+ goto memory_error;
+ }
+ }
+ }
+ if (s->ignore_case) {
+ if (cr_regexp_canonicalize(cr, s->is_unicode))
+ goto memory_error;
+ }
+ if (invert) {
+ if (cr_invert(cr))
+ goto memory_error;
+ }
+ if (re_emit_range(s, cr))
+ goto fail;
+ cr_free(cr);
+ p++; /* skip ']' */
+ *pp = p;
+ return 0;
+ memory_error:
+ re_parse_out_of_memory(s);
+ fail:
+ cr_free(cr);
+ return -1;
+}
+
+/* Return:
+ - true if the opcodes may not advance the char pointer
+ - false if the opcodes always advance the char pointer
+*/
+static BOOL re_need_check_advance(const uint8_t *bc_buf, int bc_buf_len)
+{
+ int pos, opcode, len;
+ uint32_t val;
+ BOOL ret;
+
+ ret = TRUE;
+ pos = 0;
+ while (pos < bc_buf_len) {
+ opcode = bc_buf[pos];
+ len = reopcode_info[opcode].size;
+ switch(opcode) {
+ case REOP_range:
+ val = get_u16(bc_buf + pos + 1);
+ len += val * 4;
+ goto simple_char;
+ case REOP_range32:
+ val = get_u16(bc_buf + pos + 1);
+ len += val * 8;
+ goto simple_char;
+ case REOP_char:
+ case REOP_char32:
+ case REOP_dot:
+ case REOP_any:
+ simple_char:
+ ret = FALSE;
+ break;
+ case REOP_line_start:
+ case REOP_line_end:
+ case REOP_push_i32:
+ case REOP_push_char_pos:
+ case REOP_drop:
+ case REOP_word_boundary:
+ case REOP_not_word_boundary:
+ case REOP_prev:
+ /* no effect */
+ break;
+ case REOP_save_start:
+ case REOP_save_end:
+ case REOP_save_reset:
+ case REOP_back_reference:
+ case REOP_backward_back_reference:
+ break;
+ default:
+ /* safe behavior: we cannot predict the outcome */
+ return TRUE;
+ }
+ pos += len;
+ }
+ return ret;
+}
+
+/* return -1 if a simple quantifier cannot be used. Otherwise return
+ the number of characters in the atom. */
+static int re_is_simple_quantifier(const uint8_t *bc_buf, int bc_buf_len)
+{
+ int pos, opcode, len, count;
+ uint32_t val;
+
+ count = 0;
+ pos = 0;
+ while (pos < bc_buf_len) {
+ opcode = bc_buf[pos];
+ len = reopcode_info[opcode].size;
+ switch(opcode) {
+ case REOP_range:
+ val = get_u16(bc_buf + pos + 1);
+ len += val * 4;
+ goto simple_char;
+ case REOP_range32:
+ val = get_u16(bc_buf + pos + 1);
+ len += val * 8;
+ goto simple_char;
+ case REOP_char:
+ case REOP_char32:
+ case REOP_dot:
+ case REOP_any:
+ simple_char:
+ count++;
+ break;
+ case REOP_line_start:
+ case REOP_line_end:
+ case REOP_word_boundary:
+ case REOP_not_word_boundary:
+ break;
+ default:
+ return -1;
+ }
+ pos += len;
+ }
+ return count;
+}
+
+/* '*pp' is the first char after '<' */
+static int re_parse_group_name(char *buf, int buf_size, const uint8_t **pp)
+{
+ const uint8_t *p, *p1;
+ uint32_t c, d;
+ char *q;
+
+ p = *pp;
+ q = buf;
+ for(;;) {
+ c = *p;
+ if (c == '\\') {
+ p++;
+ if (*p != 'u')
+ return -1;
+ c = lre_parse_escape(&p, 2); // accept surrogate pairs
+ } else if (c == '>') {
+ break;
+ } else if (c >= 128) {
+ c = unicode_from_utf8(p, UTF8_CHAR_LEN_MAX, &p);
+ if (is_hi_surrogate(c)) {
+ d = unicode_from_utf8(p, UTF8_CHAR_LEN_MAX, &p1);
+ if (is_lo_surrogate(d)) {
+ c = from_surrogate(c, d);
+ p = p1;
+ }
+ }
+ } else {
+ p++;
+ }
+ if (c > 0x10FFFF)
+ return -1;
+ if (q == buf) {
+ if (!lre_js_is_ident_first(c))
+ return -1;
+ } else {
+ if (!lre_js_is_ident_next(c))
+ return -1;
+ }
+ if ((q - buf + UTF8_CHAR_LEN_MAX + 1) > buf_size)
+ return -1;
+ if (c < 128) {
+ *q++ = c;
+ } else {
+ q += unicode_to_utf8((uint8_t*)q, c);
+ }
+ }
+ if (q == buf)
+ return -1;
+ *q = '\0';
+ p++;
+ *pp = p;
+ return 0;
+}
+
+/* if capture_name = NULL: return the number of captures + 1.
+ Otherwise, return the capture index corresponding to capture_name
+ or -1 if none */
+static int re_parse_captures(REParseState *s, int *phas_named_captures,
+ const char *capture_name)
+{
+ const uint8_t *p;
+ int capture_index;
+ char name[TMP_BUF_SIZE];
+
+ capture_index = 1;
+ *phas_named_captures = 0;
+ for (p = s->buf_start; p < s->buf_end; p++) {
+ switch (*p) {
+ case '(':
+ if (p[1] == '?') {
+ if (p[2] == '<' && p[3] != '=' && p[3] != '!') {
+ *phas_named_captures = 1;
+ /* potential named capture */
+ if (capture_name) {
+ p += 3;
+ if (re_parse_group_name(name, sizeof(name), &p) == 0) {
+ if (!strcmp(name, capture_name))
+ return capture_index;
+ }
+ }
+ capture_index++;
+ if (capture_index >= CAPTURE_COUNT_MAX)
+ goto done;
+ }
+ } else {
+ capture_index++;
+ if (capture_index >= CAPTURE_COUNT_MAX)
+ goto done;
+ }
+ break;
+ case '\\':
+ p++;
+ break;
+ case '[':
+ for (p += 1 + (*p == ']'); p < s->buf_end && *p != ']'; p++) {
+ if (*p == '\\')
+ p++;
+ }
+ break;
+ }
+ }
+ done:
+ if (capture_name)
+ return -1;
+ else
+ return capture_index;
+}
+
+static int re_count_captures(REParseState *s)
+{
+ if (s->total_capture_count < 0) {
+ s->total_capture_count = re_parse_captures(s, &s->has_named_captures,
+ NULL);
+ }
+ return s->total_capture_count;
+}
+
+static BOOL re_has_named_captures(REParseState *s)
+{
+ if (s->has_named_captures < 0)
+ re_count_captures(s);
+ return s->has_named_captures;
+}
+
+static int find_group_name(REParseState *s, const char *name)
+{
+ const char *p, *buf_end;
+ size_t len, name_len;
+ int capture_index;
+
+ p = (char *)s->group_names.buf;
+ if (!p) return -1;
+ buf_end = (char *)s->group_names.buf + s->group_names.size;
+ name_len = strlen(name);
+ capture_index = 1;
+ while (p < buf_end) {
+ len = strlen(p);
+ if (len == name_len && memcmp(name, p, name_len) == 0)
+ return capture_index;
+ p += len + 1;
+ capture_index++;
+ }
+ return -1;
+}
+
+static int re_parse_disjunction(REParseState *s, BOOL is_backward_dir);
+
+static int re_parse_term(REParseState *s, BOOL is_backward_dir)
+{
+ const uint8_t *p;
+ int c, last_atom_start, quant_min, quant_max, last_capture_count;
+ BOOL greedy, add_zero_advance_check, is_neg, is_backward_lookahead;
+ CharRange cr_s, *cr = &cr_s;
+
+ last_atom_start = -1;
+ last_capture_count = 0;
+ p = s->buf_ptr;
+ c = *p;
+ switch(c) {
+ case '^':
+ p++;
+ re_emit_op(s, REOP_line_start);
+ break;
+ case '$':
+ p++;
+ re_emit_op(s, REOP_line_end);
+ break;
+ case '.':
+ p++;
+ last_atom_start = s->byte_code.size;
+ last_capture_count = s->capture_count;
+ if (is_backward_dir)
+ re_emit_op(s, REOP_prev);
+ re_emit_op(s, s->dotall ? REOP_any : REOP_dot);
+ if (is_backward_dir)
+ re_emit_op(s, REOP_prev);
+ break;
+ case '{':
+ if (s->is_unicode) {
+ return re_parse_error(s, "syntax error");
+ } else if (!is_digit(p[1])) {
+ /* Annex B: we accept '{' not followed by digits as a
+ normal atom */
+ goto parse_class_atom;
+ } else {
+ const uint8_t *p1 = p + 1;
+ /* Annex B: error if it is like a repetition count */
+ parse_digits(&p1, TRUE);
+ if (*p1 == ',') {
+ p1++;
+ if (is_digit(*p1)) {
+ parse_digits(&p1, TRUE);
+ }
+ }
+ if (*p1 != '}') {
+ goto parse_class_atom;
+ }
+ }
+ /* fall thru */
+ case '*':
+ case '+':
+ case '?':
+ return re_parse_error(s, "nothing to repeat");
+ case '(':
+ if (p[1] == '?') {
+ if (p[2] == ':') {
+ p += 3;
+ last_atom_start = s->byte_code.size;
+ last_capture_count = s->capture_count;
+ s->buf_ptr = p;
+ if (re_parse_disjunction(s, is_backward_dir))
+ return -1;
+ p = s->buf_ptr;
+ if (re_parse_expect(s, &p, ')'))
+ return -1;
+ } else if ((p[2] == '=' || p[2] == '!')) {
+ is_neg = (p[2] == '!');
+ is_backward_lookahead = FALSE;
+ p += 3;
+ goto lookahead;
+ } else if (p[2] == '<' &&
+ (p[3] == '=' || p[3] == '!')) {
+ int pos;
+ is_neg = (p[3] == '!');
+ is_backward_lookahead = TRUE;
+ p += 4;
+ /* lookahead */
+ lookahead:
+ /* Annex B allows lookahead to be used as an atom for
+ the quantifiers */
+ if (!s->is_unicode && !is_backward_lookahead) {
+ last_atom_start = s->byte_code.size;
+ last_capture_count = s->capture_count;
+ }
+ pos = re_emit_op_u32(s, REOP_lookahead + is_neg, 0);
+ s->buf_ptr = p;
+ if (re_parse_disjunction(s, is_backward_lookahead))
+ return -1;
+ p = s->buf_ptr;
+ if (re_parse_expect(s, &p, ')'))
+ return -1;
+ re_emit_op(s, REOP_match);
+ /* jump after the 'match' after the lookahead is successful */
+ if (dbuf_error(&s->byte_code))
+ return -1;
+ put_u32(s->byte_code.buf + pos, s->byte_code.size - (pos + 4));
+ } else if (p[2] == '<') {
+ p += 3;
+ if (re_parse_group_name(s->u.tmp_buf, sizeof(s->u.tmp_buf),
+ &p)) {
+ return re_parse_error(s, "invalid group name");
+ }
+ if (find_group_name(s, s->u.tmp_buf) > 0) {
+ return re_parse_error(s, "duplicate group name");
+ }
+ /* group name with a trailing zero */
+ dbuf_put(&s->group_names, (uint8_t *)s->u.tmp_buf,
+ strlen(s->u.tmp_buf) + 1);
+ s->has_named_captures = 1;
+ goto parse_capture;
+ } else {
+ return re_parse_error(s, "invalid group");
+ }
+ } else {
+ int capture_index;
+ p++;
+ /* capture without group name */
+ dbuf_putc(&s->group_names, 0);
+ parse_capture:
+ if (s->capture_count >= CAPTURE_COUNT_MAX)
+ return re_parse_error(s, "too many captures");
+ last_atom_start = s->byte_code.size;
+ last_capture_count = s->capture_count;
+ capture_index = s->capture_count++;
+ re_emit_op_u8(s, REOP_save_start + is_backward_dir,
+ capture_index);
+
+ s->buf_ptr = p;
+ if (re_parse_disjunction(s, is_backward_dir))
+ return -1;
+ p = s->buf_ptr;
+
+ re_emit_op_u8(s, REOP_save_start + 1 - is_backward_dir,
+ capture_index);
+
+ if (re_parse_expect(s, &p, ')'))
+ return -1;
+ }
+ break;
+ case '\\':
+ switch(p[1]) {
+ case 'b':
+ case 'B':
+ re_emit_op(s, REOP_word_boundary + (p[1] != 'b'));
+ p += 2;
+ break;
+ case 'k':
+ {
+ const uint8_t *p1;
+ int dummy_res;
+
+ p1 = p;
+ if (p1[2] != '<') {
+ /* annex B: we tolerate invalid group names in non
+ unicode mode if there is no named capture
+ definition */
+ if (s->is_unicode || re_has_named_captures(s))
+ return re_parse_error(s, "expecting group name");
+ else
+ goto parse_class_atom;
+ }
+ p1 += 3;
+ if (re_parse_group_name(s->u.tmp_buf, sizeof(s->u.tmp_buf),
+ &p1)) {
+ if (s->is_unicode || re_has_named_captures(s))
+ return re_parse_error(s, "invalid group name");
+ else
+ goto parse_class_atom;
+ }
+ c = find_group_name(s, s->u.tmp_buf);
+ if (c < 0) {
+ /* no capture name parsed before, try to look
+ after (inefficient, but hopefully not common */
+ c = re_parse_captures(s, &dummy_res, s->u.tmp_buf);
+ if (c < 0) {
+ if (s->is_unicode || re_has_named_captures(s))
+ return re_parse_error(s, "group name not defined");
+ else
+ goto parse_class_atom;
+ }
+ }
+ p = p1;
+ }
+ goto emit_back_reference;
+ case '0':
+ p += 2;
+ c = 0;
+ if (s->is_unicode) {
+ if (is_digit(*p)) {
+ return re_parse_error(s, "invalid decimal escape in regular expression");
+ }
+ } else {
+ /* Annex B.1.4: accept legacy octal */
+ if (*p >= '0' && *p <= '7') {
+ c = *p++ - '0';
+ if (*p >= '0' && *p <= '7') {
+ c = (c << 3) + *p++ - '0';
+ }
+ }
+ }
+ goto normal_char;
+ case '1': case '2': case '3': case '4':
+ case '5': case '6': case '7': case '8':
+ case '9':
+ {
+ const uint8_t *q = ++p;
+
+ c = parse_digits(&p, FALSE);
+ if (c < 0 || (c >= s->capture_count && c >= re_count_captures(s))) {
+ if (!s->is_unicode) {
+ /* Annex B.1.4: accept legacy octal */
+ p = q;
+ if (*p <= '7') {
+ c = 0;
+ if (*p <= '3')
+ c = *p++ - '0';
+ if (*p >= '0' && *p <= '7') {
+ c = (c << 3) + *p++ - '0';
+ if (*p >= '0' && *p <= '7') {
+ c = (c << 3) + *p++ - '0';
+ }
+ }
+ } else {
+ c = *p++;
+ }
+ goto normal_char;
+ }
+ return re_parse_error(s, "back reference out of range in regular expression");
+ }
+ emit_back_reference:
+ last_atom_start = s->byte_code.size;
+ last_capture_count = s->capture_count;
+ re_emit_op_u8(s, REOP_back_reference + is_backward_dir, c);
+ }
+ break;
+ default:
+ goto parse_class_atom;
+ }
+ break;
+ case '[':
+ last_atom_start = s->byte_code.size;
+ last_capture_count = s->capture_count;
+ if (is_backward_dir)
+ re_emit_op(s, REOP_prev);
+ if (re_parse_char_class(s, &p))
+ return -1;
+ if (is_backward_dir)
+ re_emit_op(s, REOP_prev);
+ break;
+ case ']':
+ case '}':
+ if (s->is_unicode)
+ return re_parse_error(s, "syntax error");
+ goto parse_class_atom;
+ default:
+ parse_class_atom:
+ c = get_class_atom(s, cr, &p, FALSE);
+ if ((int)c < 0)
+ return -1;
+ normal_char:
+ last_atom_start = s->byte_code.size;
+ last_capture_count = s->capture_count;
+ if (is_backward_dir)
+ re_emit_op(s, REOP_prev);
+ if (c >= CLASS_RANGE_BASE) {
+ int ret;
+ /* Note: canonicalization is not needed */
+ ret = re_emit_range(s, cr);
+ cr_free(cr);
+ if (ret)
+ return -1;
+ } else {
+ if (s->ignore_case)
+ c = lre_canonicalize(c, s->is_unicode);
+ if (c <= 0xffff)
+ re_emit_op_u16(s, REOP_char, c);
+ else
+ re_emit_op_u32(s, REOP_char32, c);
+ }
+ if (is_backward_dir)
+ re_emit_op(s, REOP_prev);
+ break;
+ }
+
+ /* quantifier */
+ if (last_atom_start >= 0) {
+ c = *p;
+ switch(c) {
+ case '*':
+ p++;
+ quant_min = 0;
+ quant_max = INT32_MAX;
+ goto quantifier;
+ case '+':
+ p++;
+ quant_min = 1;
+ quant_max = INT32_MAX;
+ goto quantifier;
+ case '?':
+ p++;
+ quant_min = 0;
+ quant_max = 1;
+ goto quantifier;
+ case '{':
+ {
+ const uint8_t *p1 = p;
+ /* As an extension (see ES6 annex B), we accept '{' not
+ followed by digits as a normal atom */
+ if (!is_digit(p[1])) {
+ if (s->is_unicode)
+ goto invalid_quant_count;
+ break;
+ }
+ p++;
+ quant_min = parse_digits(&p, TRUE);
+ quant_max = quant_min;
+ if (*p == ',') {
+ p++;
+ if (is_digit(*p)) {
+ quant_max = parse_digits(&p, TRUE);
+ if (quant_max < quant_min) {
+ invalid_quant_count:
+ return re_parse_error(s, "invalid repetition count");
+ }
+ } else {
+ quant_max = INT32_MAX; /* infinity */
+ }
+ }
+ if (*p != '}' && !s->is_unicode) {
+ /* Annex B: normal atom if invalid '{' syntax */
+ p = p1;
+ break;
+ }
+ if (re_parse_expect(s, &p, '}'))
+ return -1;
+ }
+ quantifier:
+ greedy = TRUE;
+ if (*p == '?') {
+ p++;
+ greedy = FALSE;
+ }
+ if (last_atom_start < 0) {
+ return re_parse_error(s, "nothing to repeat");
+ }
+ if (greedy) {
+ int len, pos;
+
+ if (quant_max > 0) {
+ /* specific optimization for simple quantifiers */
+ if (dbuf_error(&s->byte_code))
+ goto out_of_memory;
+ len = re_is_simple_quantifier(s->byte_code.buf + last_atom_start,
+ s->byte_code.size - last_atom_start);
+ if (len > 0) {
+ re_emit_op(s, REOP_match);
+
+ if (dbuf_insert(&s->byte_code, last_atom_start, 17))
+ goto out_of_memory;
+ pos = last_atom_start;
+ s->byte_code.buf[pos++] = REOP_simple_greedy_quant;
+ put_u32(&s->byte_code.buf[pos],
+ s->byte_code.size - last_atom_start - 17);
+ pos += 4;
+ put_u32(&s->byte_code.buf[pos], quant_min);
+ pos += 4;
+ put_u32(&s->byte_code.buf[pos], quant_max);
+ pos += 4;
+ put_u32(&s->byte_code.buf[pos], len);
+ pos += 4;
+ goto done;
+ }
+ }
+
+ if (dbuf_error(&s->byte_code))
+ goto out_of_memory;
+ /* the spec tells that if there is no advance when
+ running the atom after the first quant_min times,
+ then there is no match. We remove this test when we
+ are sure the atom always advances the position. */
+ add_zero_advance_check = re_need_check_advance(s->byte_code.buf + last_atom_start,
+ s->byte_code.size - last_atom_start);
+ } else {
+ add_zero_advance_check = FALSE;
+ }
+
+ {
+ int len, pos;
+ len = s->byte_code.size - last_atom_start;
+ if (quant_min == 0) {
+ /* need to reset the capture in case the atom is
+ not executed */
+ if (last_capture_count != s->capture_count) {
+ if (dbuf_insert(&s->byte_code, last_atom_start, 3))
+ goto out_of_memory;
+ s->byte_code.buf[last_atom_start++] = REOP_save_reset;
+ s->byte_code.buf[last_atom_start++] = last_capture_count;
+ s->byte_code.buf[last_atom_start++] = s->capture_count - 1;
+ }
+ if (quant_max == 0) {
+ s->byte_code.size = last_atom_start;
+ } else if (quant_max == 1 || quant_max == INT32_MAX) {
+ BOOL has_goto = (quant_max == INT32_MAX);
+ if (dbuf_insert(&s->byte_code, last_atom_start, 5 + add_zero_advance_check))
+ goto out_of_memory;
+ s->byte_code.buf[last_atom_start] = REOP_split_goto_first +
+ greedy;
+ put_u32(s->byte_code.buf + last_atom_start + 1,
+ len + 5 * has_goto + add_zero_advance_check * 2);
+ if (add_zero_advance_check) {
+ s->byte_code.buf[last_atom_start + 1 + 4] = REOP_push_char_pos;
+ re_emit_op(s, REOP_check_advance);
+ }
+ if (has_goto)
+ re_emit_goto(s, REOP_goto, last_atom_start);
+ } else {
+ if (dbuf_insert(&s->byte_code, last_atom_start, 10 + add_zero_advance_check))
+ goto out_of_memory;
+ pos = last_atom_start;
+ s->byte_code.buf[pos++] = REOP_push_i32;
+ put_u32(s->byte_code.buf + pos, quant_max);
+ pos += 4;
+ s->byte_code.buf[pos++] = REOP_split_goto_first + greedy;
+ put_u32(s->byte_code.buf + pos, len + 5 + add_zero_advance_check * 2);
+ pos += 4;
+ if (add_zero_advance_check) {
+ s->byte_code.buf[pos++] = REOP_push_char_pos;
+ re_emit_op(s, REOP_check_advance);
+ }
+ re_emit_goto(s, REOP_loop, last_atom_start + 5);
+ re_emit_op(s, REOP_drop);
+ }
+ } else if (quant_min == 1 && quant_max == INT32_MAX &&
+ !add_zero_advance_check) {
+ re_emit_goto(s, REOP_split_next_first - greedy,
+ last_atom_start);
+ } else {
+ if (quant_min == 1) {
+ /* nothing to add */
+ } else {
+ if (dbuf_insert(&s->byte_code, last_atom_start, 5))
+ goto out_of_memory;
+ s->byte_code.buf[last_atom_start] = REOP_push_i32;
+ put_u32(s->byte_code.buf + last_atom_start + 1,
+ quant_min);
+ last_atom_start += 5;
+ re_emit_goto(s, REOP_loop, last_atom_start);
+ re_emit_op(s, REOP_drop);
+ }
+ if (quant_max == INT32_MAX) {
+ pos = s->byte_code.size;
+ re_emit_op_u32(s, REOP_split_goto_first + greedy,
+ len + 5 + add_zero_advance_check * 2);
+ if (add_zero_advance_check)
+ re_emit_op(s, REOP_push_char_pos);
+ /* copy the atom */
+ dbuf_put_self(&s->byte_code, last_atom_start, len);
+ if (add_zero_advance_check)
+ re_emit_op(s, REOP_check_advance);
+ re_emit_goto(s, REOP_goto, pos);
+ } else if (quant_max > quant_min) {
+ re_emit_op_u32(s, REOP_push_i32, quant_max - quant_min);
+ pos = s->byte_code.size;
+ re_emit_op_u32(s, REOP_split_goto_first + greedy,
+ len + 5 + add_zero_advance_check * 2);
+ if (add_zero_advance_check)
+ re_emit_op(s, REOP_push_char_pos);
+ /* copy the atom */
+ dbuf_put_self(&s->byte_code, last_atom_start, len);
+ if (add_zero_advance_check)
+ re_emit_op(s, REOP_check_advance);
+ re_emit_goto(s, REOP_loop, pos);
+ re_emit_op(s, REOP_drop);
+ }
+ }
+ last_atom_start = -1;
+ }
+ break;
+ default:
+ break;
+ }
+ }
+ done:
+ s->buf_ptr = p;
+ return 0;
+ out_of_memory:
+ return re_parse_out_of_memory(s);
+}
+
+static int re_parse_alternative(REParseState *s, BOOL is_backward_dir)
+{
+ const uint8_t *p;
+ int ret;
+ size_t start, term_start, end, term_size;
+
+ start = s->byte_code.size;
+ for(;;) {
+ p = s->buf_ptr;
+ if (p >= s->buf_end)
+ break;
+ if (*p == '|' || *p == ')')
+ break;
+ term_start = s->byte_code.size;
+ ret = re_parse_term(s, is_backward_dir);
+ if (ret)
+ return ret;
+ if (is_backward_dir) {
+ /* reverse the order of the terms (XXX: inefficient, but
+ speed is not really critical here) */
+ end = s->byte_code.size;
+ term_size = end - term_start;
+ if (dbuf_realloc(&s->byte_code, end + term_size))
+ return -1;
+ memmove(s->byte_code.buf + start + term_size,
+ s->byte_code.buf + start,
+ end - start);
+ memcpy(s->byte_code.buf + start, s->byte_code.buf + end,
+ term_size);
+ }
+ }
+ return 0;
+}
+
+static int re_parse_disjunction(REParseState *s, BOOL is_backward_dir)
+{
+ int start, len, pos;
+
+ if (lre_check_stack_overflow(s->opaque, 0))
+ return re_parse_error(s, "stack overflow");
+
+ start = s->byte_code.size;
+ if (re_parse_alternative(s, is_backward_dir))
+ return -1;
+ while (*s->buf_ptr == '|') {
+ s->buf_ptr++;
+
+ len = s->byte_code.size - start;
+
+ /* insert a split before the first alternative */
+ if (dbuf_insert(&s->byte_code, start, 5)) {
+ return re_parse_out_of_memory(s);
+ }
+ s->byte_code.buf[start] = REOP_split_next_first;
+ put_u32(s->byte_code.buf + start + 1, len + 5);
+
+ pos = re_emit_op_u32(s, REOP_goto, 0);
+
+ if (re_parse_alternative(s, is_backward_dir))
+ return -1;
+
+ /* patch the goto */
+ len = s->byte_code.size - (pos + 4);
+ put_u32(s->byte_code.buf + pos, len);
+ }
+ return 0;
+}
+
+/* the control flow is recursive so the analysis can be linear */
+static int compute_stack_size(const uint8_t *bc_buf, int bc_buf_len)
+{
+ int stack_size, stack_size_max, pos, opcode, len;
+ uint32_t val;
+
+ stack_size = 0;
+ stack_size_max = 0;
+ bc_buf += RE_HEADER_LEN;
+ bc_buf_len -= RE_HEADER_LEN;
+ pos = 0;
+ while (pos < bc_buf_len) {
+ opcode = bc_buf[pos];
+ len = reopcode_info[opcode].size;
+ assert(opcode < REOP_COUNT);
+ assert((pos + len) <= bc_buf_len);
+ switch(opcode) {
+ case REOP_push_i32:
+ case REOP_push_char_pos:
+ stack_size++;
+ if (stack_size > stack_size_max) {
+ if (stack_size > STACK_SIZE_MAX)
+ return -1;
+ stack_size_max = stack_size;
+ }
+ break;
+ case REOP_drop:
+ case REOP_check_advance:
+ assert(stack_size > 0);
+ stack_size--;
+ break;
+ case REOP_range:
+ val = get_u16(bc_buf + pos + 1);
+ len += val * 4;
+ break;
+ case REOP_range32:
+ val = get_u16(bc_buf + pos + 1);
+ len += val * 8;
+ break;
+ }
+ pos += len;
+ }
+ return stack_size_max;
+}
+
+/* 'buf' must be a zero terminated UTF-8 string of length buf_len.
+ Return NULL if error and allocate an error message in *perror_msg,
+ otherwise the compiled bytecode and its length in plen.
+*/
+uint8_t *lre_compile(int *plen, char *error_msg, int error_msg_size,
+ const char *buf, size_t buf_len, int re_flags,
+ void *opaque)
+{
+ REParseState s_s, *s = &s_s;
+ int stack_size;
+ BOOL is_sticky;
+
+ memset(s, 0, sizeof(*s));
+ s->opaque = opaque;
+ s->buf_ptr = (const uint8_t *)buf;
+ s->buf_end = s->buf_ptr + buf_len;
+ s->buf_start = s->buf_ptr;
+ s->re_flags = re_flags;
+ s->is_unicode = ((re_flags & LRE_FLAG_UNICODE) != 0);
+ is_sticky = ((re_flags & LRE_FLAG_STICKY) != 0);
+ s->ignore_case = ((re_flags & LRE_FLAG_IGNORECASE) != 0);
+ s->dotall = ((re_flags & LRE_FLAG_DOTALL) != 0);
+ s->capture_count = 1;
+ s->total_capture_count = -1;
+ s->has_named_captures = -1;
+
+ dbuf_init2(&s->byte_code, opaque, lre_realloc);
+ dbuf_init2(&s->group_names, opaque, lre_realloc);
+
+ dbuf_putc(&s->byte_code, re_flags); /* first element is the flags */
+ dbuf_putc(&s->byte_code, 0); /* second element is the number of captures */
+ dbuf_putc(&s->byte_code, 0); /* stack size */
+ dbuf_put_u32(&s->byte_code, 0); /* bytecode length */
+
+ if (!is_sticky) {
+ /* iterate thru all positions (about the same as .*?( ... ) )
+ . We do it without an explicit loop so that lock step
+ thread execution will be possible in an optimized
+ implementation */
+ re_emit_op_u32(s, REOP_split_goto_first, 1 + 5);
+ re_emit_op(s, REOP_any);
+ re_emit_op_u32(s, REOP_goto, -(5 + 1 + 5));
+ }
+ re_emit_op_u8(s, REOP_save_start, 0);
+
+ if (re_parse_disjunction(s, FALSE)) {
+ error:
+ dbuf_free(&s->byte_code);
+ dbuf_free(&s->group_names);
+ pstrcpy(error_msg, error_msg_size, s->u.error_msg);
+ *plen = 0;
+ return NULL;
+ }
+
+ re_emit_op_u8(s, REOP_save_end, 0);
+
+ re_emit_op(s, REOP_match);
+
+ if (*s->buf_ptr != '\0') {
+ re_parse_error(s, "extraneous characters at the end");
+ goto error;
+ }
+
+ if (dbuf_error(&s->byte_code)) {
+ re_parse_out_of_memory(s);
+ goto error;
+ }
+
+ stack_size = compute_stack_size(s->byte_code.buf, s->byte_code.size);
+ if (stack_size < 0) {
+ re_parse_error(s, "too many imbricated quantifiers");
+ goto error;
+ }
+
+ s->byte_code.buf[RE_HEADER_CAPTURE_COUNT] = s->capture_count;
+ s->byte_code.buf[RE_HEADER_STACK_SIZE] = stack_size;
+ put_u32(s->byte_code.buf + RE_HEADER_BYTECODE_LEN,
+ s->byte_code.size - RE_HEADER_LEN);
+
+ /* add the named groups if needed */
+ if (s->group_names.size > (s->capture_count - 1)) {
+ dbuf_put(&s->byte_code, s->group_names.buf, s->group_names.size);
+ s->byte_code.buf[RE_HEADER_FLAGS] |= LRE_FLAG_NAMED_GROUPS;
+ }
+ dbuf_free(&s->group_names);
+
+#ifdef DUMP_REOP
+ lre_dump_bytecode(s->byte_code.buf, s->byte_code.size);
+#endif
+
+ error_msg[0] = '\0';
+ *plen = s->byte_code.size;
+ return s->byte_code.buf;
+}
+
+static BOOL is_line_terminator(uint32_t c)
+{
+ return (c == '\n' || c == '\r' || c == CP_LS || c == CP_PS);
+}
+
+static BOOL is_word_char(uint32_t c)
+{
+ return ((c >= '0' && c <= '9') ||
+ (c >= 'a' && c <= 'z') ||
+ (c >= 'A' && c <= 'Z') ||
+ (c == '_'));
+}
+
+#define GET_CHAR(c, cptr, cbuf_end, cbuf_type) \
+ do { \
+ if (cbuf_type == 0) { \
+ c = *cptr++; \
+ } else { \
+ const uint16_t *_p = (const uint16_t *)cptr; \
+ const uint16_t *_end = (const uint16_t *)cbuf_end; \
+ c = *_p++; \
+ if (is_hi_surrogate(c) && cbuf_type == 2) { \
+ if (_p < _end && is_lo_surrogate(*_p)) { \
+ c = from_surrogate(c, *_p++); \
+ } \
+ } \
+ cptr = (const void *)_p; \
+ } \
+ } while (0)
+
+#define PEEK_CHAR(c, cptr, cbuf_end, cbuf_type) \
+ do { \
+ if (cbuf_type == 0) { \
+ c = cptr[0]; \
+ } else { \
+ const uint16_t *_p = (const uint16_t *)cptr; \
+ const uint16_t *_end = (const uint16_t *)cbuf_end; \
+ c = *_p++; \
+ if (is_hi_surrogate(c) && cbuf_type == 2) { \
+ if (_p < _end && is_lo_surrogate(*_p)) { \
+ c = from_surrogate(c, *_p); \
+ } \
+ } \
+ } \
+ } while (0)
+
+#define PEEK_PREV_CHAR(c, cptr, cbuf_start, cbuf_type) \
+ do { \
+ if (cbuf_type == 0) { \
+ c = cptr[-1]; \
+ } else { \
+ const uint16_t *_p = (const uint16_t *)cptr - 1; \
+ const uint16_t *_start = (const uint16_t *)cbuf_start; \
+ c = *_p; \
+ if (is_lo_surrogate(c) && cbuf_type == 2) { \
+ if (_p > _start && is_hi_surrogate(_p[-1])) { \
+ c = from_surrogate(*--_p, c); \
+ } \
+ } \
+ } \
+ } while (0)
+
+#define GET_PREV_CHAR(c, cptr, cbuf_start, cbuf_type) \
+ do { \
+ if (cbuf_type == 0) { \
+ cptr--; \
+ c = cptr[0]; \
+ } else { \
+ const uint16_t *_p = (const uint16_t *)cptr - 1; \
+ const uint16_t *_start = (const uint16_t *)cbuf_start; \
+ c = *_p; \
+ if (is_lo_surrogate(c) && cbuf_type == 2) { \
+ if (_p > _start && is_hi_surrogate(_p[-1])) { \
+ c = from_surrogate(*--_p, c); \
+ } \
+ } \
+ cptr = (const void *)_p; \
+ } \
+ } while (0)
+
+#define PREV_CHAR(cptr, cbuf_start, cbuf_type) \
+ do { \
+ if (cbuf_type == 0) { \
+ cptr--; \
+ } else { \
+ const uint16_t *_p = (const uint16_t *)cptr - 1; \
+ const uint16_t *_start = (const uint16_t *)cbuf_start; \
+ if (is_lo_surrogate(*_p) && cbuf_type == 2) { \
+ if (_p > _start && is_hi_surrogate(_p[-1])) { \
+ --_p; \
+ } \
+ } \
+ cptr = (const void *)_p; \
+ } \
+ } while (0)
+
+typedef uintptr_t StackInt;
+
+typedef enum {
+ RE_EXEC_STATE_SPLIT,
+ RE_EXEC_STATE_LOOKAHEAD,
+ RE_EXEC_STATE_NEGATIVE_LOOKAHEAD,
+ RE_EXEC_STATE_GREEDY_QUANT,
+} REExecStateEnum;
+
+typedef struct REExecState {
+ REExecStateEnum type : 8;
+ uint8_t stack_len;
+ size_t count; /* only used for RE_EXEC_STATE_GREEDY_QUANT */
+ const uint8_t *cptr;
+ const uint8_t *pc;
+ void *buf[0];
+} REExecState;
+
+typedef struct {
+ const uint8_t *cbuf;
+ const uint8_t *cbuf_end;
+ /* 0 = 8 bit chars, 1 = 16 bit chars, 2 = 16 bit chars, UTF-16 */
+ int cbuf_type;
+ int capture_count;
+ int stack_size_max;
+ BOOL multi_line;
+ BOOL ignore_case;
+ BOOL is_unicode;
+ void *opaque; /* used for stack overflow check */
+
+ size_t state_size;
+ uint8_t *state_stack;
+ size_t state_stack_size;
+ size_t state_stack_len;
+} REExecContext;
+
+static int push_state(REExecContext *s,
+ uint8_t **capture,
+ StackInt *stack, size_t stack_len,
+ const uint8_t *pc, const uint8_t *cptr,
+ REExecStateEnum type, size_t count)
+{
+ REExecState *rs;
+ uint8_t *new_stack;
+ size_t new_size, i, n;
+ StackInt *stack_buf;
+
+ if (unlikely((s->state_stack_len + 1) > s->state_stack_size)) {
+ /* reallocate the stack */
+ new_size = s->state_stack_size * 3 / 2;
+ if (new_size < 8)
+ new_size = 8;
+ new_stack = lre_realloc(s->opaque, s->state_stack, new_size * s->state_size);
+ if (!new_stack)
+ return -1;
+ s->state_stack_size = new_size;
+ s->state_stack = new_stack;
+ }
+ rs = (REExecState *)(s->state_stack + s->state_stack_len * s->state_size);
+ s->state_stack_len++;
+ rs->type = type;
+ rs->count = count;
+ rs->stack_len = stack_len;
+ rs->cptr = cptr;
+ rs->pc = pc;
+ n = 2 * s->capture_count;
+ for(i = 0; i < n; i++)
+ rs->buf[i] = capture[i];
+ stack_buf = (StackInt *)(rs->buf + n);
+ for(i = 0; i < stack_len; i++)
+ stack_buf[i] = stack[i];
+ return 0;
+}
+
+/* return 1 if match, 0 if not match or -1 if error. */
+static intptr_t lre_exec_backtrack(REExecContext *s, uint8_t **capture,
+ StackInt *stack, int stack_len,
+ const uint8_t *pc, const uint8_t *cptr,
+ BOOL no_recurse)
+{
+ int opcode, ret;
+ int cbuf_type;
+ uint32_t val, c;
+ const uint8_t *cbuf_end;
+
+ cbuf_type = s->cbuf_type;
+ cbuf_end = s->cbuf_end;
+
+ for(;;) {
+ // printf("top=%p: pc=%d\n", th_list.top, (int)(pc - (bc_buf + RE_HEADER_LEN)));
+ opcode = *pc++;
+ switch(opcode) {
+ case REOP_match:
+ {
+ REExecState *rs;
+ if (no_recurse)
+ return (intptr_t)cptr;
+ ret = 1;
+ goto recurse;
+ no_match:
+ if (no_recurse)
+ return 0;
+ ret = 0;
+ recurse:
+ for(;;) {
+ if (s->state_stack_len == 0)
+ return ret;
+ rs = (REExecState *)(s->state_stack +
+ (s->state_stack_len - 1) * s->state_size);
+ if (rs->type == RE_EXEC_STATE_SPLIT) {
+ if (!ret) {
+ pop_state:
+ memcpy(capture, rs->buf,
+ sizeof(capture[0]) * 2 * s->capture_count);
+ pop_state1:
+ pc = rs->pc;
+ cptr = rs->cptr;
+ stack_len = rs->stack_len;
+ memcpy(stack, rs->buf + 2 * s->capture_count,
+ stack_len * sizeof(stack[0]));
+ s->state_stack_len--;
+ break;
+ }
+ } else if (rs->type == RE_EXEC_STATE_GREEDY_QUANT) {
+ if (!ret) {
+ uint32_t char_count, i;
+ memcpy(capture, rs->buf,
+ sizeof(capture[0]) * 2 * s->capture_count);
+ stack_len = rs->stack_len;
+ memcpy(stack, rs->buf + 2 * s->capture_count,
+ stack_len * sizeof(stack[0]));
+ pc = rs->pc;
+ cptr = rs->cptr;
+ /* go backward */
+ char_count = get_u32(pc + 12);
+ for(i = 0; i < char_count; i++) {
+ PREV_CHAR(cptr, s->cbuf, cbuf_type);
+ }
+ pc = (pc + 16) + (int)get_u32(pc);
+ rs->cptr = cptr;
+ rs->count--;
+ if (rs->count == 0) {
+ s->state_stack_len--;
+ }
+ break;
+ }
+ } else {
+ ret = ((rs->type == RE_EXEC_STATE_LOOKAHEAD && ret) ||
+ (rs->type == RE_EXEC_STATE_NEGATIVE_LOOKAHEAD && !ret));
+ if (ret) {
+ /* keep the capture in case of positive lookahead */
+ if (rs->type == RE_EXEC_STATE_LOOKAHEAD)
+ goto pop_state1;
+ else
+ goto pop_state;
+ }
+ }
+ s->state_stack_len--;
+ }
+ }
+ break;
+ case REOP_char32:
+ val = get_u32(pc);
+ pc += 4;
+ goto test_char;
+ case REOP_char:
+ val = get_u16(pc);
+ pc += 2;
+ test_char:
+ if (cptr >= cbuf_end)
+ goto no_match;
+ GET_CHAR(c, cptr, cbuf_end, cbuf_type);
+ if (s->ignore_case) {
+ c = lre_canonicalize(c, s->is_unicode);
+ }
+ if (val != c)
+ goto no_match;
+ break;
+ case REOP_split_goto_first:
+ case REOP_split_next_first:
+ {
+ const uint8_t *pc1;
+
+ val = get_u32(pc);
+ pc += 4;
+ if (opcode == REOP_split_next_first) {
+ pc1 = pc + (int)val;
+ } else {
+ pc1 = pc;
+ pc = pc + (int)val;
+ }
+ ret = push_state(s, capture, stack, stack_len,
+ pc1, cptr, RE_EXEC_STATE_SPLIT, 0);
+ if (ret < 0)
+ return -1;
+ break;
+ }
+ case REOP_lookahead:
+ case REOP_negative_lookahead:
+ val = get_u32(pc);
+ pc += 4;
+ ret = push_state(s, capture, stack, stack_len,
+ pc + (int)val, cptr,
+ RE_EXEC_STATE_LOOKAHEAD + opcode - REOP_lookahead,
+ 0);
+ if (ret < 0)
+ return -1;
+ break;
+
+ case REOP_goto:
+ val = get_u32(pc);
+ pc += 4 + (int)val;
+ break;
+ case REOP_line_start:
+ if (cptr == s->cbuf)
+ break;
+ if (!s->multi_line)
+ goto no_match;
+ PEEK_PREV_CHAR(c, cptr, s->cbuf, cbuf_type);
+ if (!is_line_terminator(c))
+ goto no_match;
+ break;
+ case REOP_line_end:
+ if (cptr == cbuf_end)
+ break;
+ if (!s->multi_line)
+ goto no_match;
+ PEEK_CHAR(c, cptr, cbuf_end, cbuf_type);
+ if (!is_line_terminator(c))
+ goto no_match;
+ break;
+ case REOP_dot:
+ if (cptr == cbuf_end)
+ goto no_match;
+ GET_CHAR(c, cptr, cbuf_end, cbuf_type);
+ if (is_line_terminator(c))
+ goto no_match;
+ break;
+ case REOP_any:
+ if (cptr == cbuf_end)
+ goto no_match;
+ GET_CHAR(c, cptr, cbuf_end, cbuf_type);
+ break;
+ case REOP_save_start:
+ case REOP_save_end:
+ val = *pc++;
+ assert(val < s->capture_count);
+ capture[2 * val + opcode - REOP_save_start] = (uint8_t *)cptr;
+ break;
+ case REOP_save_reset:
+ {
+ uint32_t val2;
+ val = pc[0];
+ val2 = pc[1];
+ pc += 2;
+ assert(val2 < s->capture_count);
+ while (val <= val2) {
+ capture[2 * val] = NULL;
+ capture[2 * val + 1] = NULL;
+ val++;
+ }
+ }
+ break;
+ case REOP_push_i32:
+ val = get_u32(pc);
+ pc += 4;
+ stack[stack_len++] = val;
+ break;
+ case REOP_drop:
+ stack_len--;
+ break;
+ case REOP_loop:
+ val = get_u32(pc);
+ pc += 4;
+ if (--stack[stack_len - 1] != 0) {
+ pc += (int)val;
+ }
+ break;
+ case REOP_push_char_pos:
+ stack[stack_len++] = (uintptr_t)cptr;
+ break;
+ case REOP_check_advance:
+ if (stack[--stack_len] == (uintptr_t)cptr)
+ goto no_match;
+ break;
+ case REOP_word_boundary:
+ case REOP_not_word_boundary:
+ {
+ BOOL v1, v2;
+ /* char before */
+ if (cptr == s->cbuf) {
+ v1 = FALSE;
+ } else {
+ PEEK_PREV_CHAR(c, cptr, s->cbuf, cbuf_type);
+ v1 = is_word_char(c);
+ }
+ /* current char */
+ if (cptr >= cbuf_end) {
+ v2 = FALSE;
+ } else {
+ PEEK_CHAR(c, cptr, cbuf_end, cbuf_type);
+ v2 = is_word_char(c);
+ }
+ if (v1 ^ v2 ^ (REOP_not_word_boundary - opcode))
+ goto no_match;
+ }
+ break;
+ case REOP_back_reference:
+ case REOP_backward_back_reference:
+ {
+ const uint8_t *cptr1, *cptr1_end, *cptr1_start;
+ uint32_t c1, c2;
+
+ val = *pc++;
+ if (val >= s->capture_count)
+ goto no_match;
+ cptr1_start = capture[2 * val];
+ cptr1_end = capture[2 * val + 1];
+ if (!cptr1_start || !cptr1_end)
+ break;
+ if (opcode == REOP_back_reference) {
+ cptr1 = cptr1_start;
+ while (cptr1 < cptr1_end) {
+ if (cptr >= cbuf_end)
+ goto no_match;
+ GET_CHAR(c1, cptr1, cptr1_end, cbuf_type);
+ GET_CHAR(c2, cptr, cbuf_end, cbuf_type);
+ if (s->ignore_case) {
+ c1 = lre_canonicalize(c1, s->is_unicode);
+ c2 = lre_canonicalize(c2, s->is_unicode);
+ }
+ if (c1 != c2)
+ goto no_match;
+ }
+ } else {
+ cptr1 = cptr1_end;
+ while (cptr1 > cptr1_start) {
+ if (cptr == s->cbuf)
+ goto no_match;
+ GET_PREV_CHAR(c1, cptr1, cptr1_start, cbuf_type);
+ GET_PREV_CHAR(c2, cptr, s->cbuf, cbuf_type);
+ if (s->ignore_case) {
+ c1 = lre_canonicalize(c1, s->is_unicode);
+ c2 = lre_canonicalize(c2, s->is_unicode);
+ }
+ if (c1 != c2)
+ goto no_match;
+ }
+ }
+ }
+ break;
+ case REOP_range:
+ {
+ int n;
+ uint32_t low, high, idx_min, idx_max, idx;
+
+ n = get_u16(pc); /* n must be >= 1 */
+ pc += 2;
+ if (cptr >= cbuf_end)
+ goto no_match;
+ GET_CHAR(c, cptr, cbuf_end, cbuf_type);
+ if (s->ignore_case) {
+ c = lre_canonicalize(c, s->is_unicode);
+ }
+ idx_min = 0;
+ low = get_u16(pc + 0 * 4);
+ if (c < low)
+ goto no_match;
+ idx_max = n - 1;
+ high = get_u16(pc + idx_max * 4 + 2);
+ /* 0xffff in for last value means +infinity */
+ if (unlikely(c >= 0xffff) && high == 0xffff)
+ goto range_match;
+ if (c > high)
+ goto no_match;
+ while (idx_min <= idx_max) {
+ idx = (idx_min + idx_max) / 2;
+ low = get_u16(pc + idx * 4);
+ high = get_u16(pc + idx * 4 + 2);
+ if (c < low)
+ idx_max = idx - 1;
+ else if (c > high)
+ idx_min = idx + 1;
+ else
+ goto range_match;
+ }
+ goto no_match;
+ range_match:
+ pc += 4 * n;
+ }
+ break;
+ case REOP_range32:
+ {
+ int n;
+ uint32_t low, high, idx_min, idx_max, idx;
+
+ n = get_u16(pc); /* n must be >= 1 */
+ pc += 2;
+ if (cptr >= cbuf_end)
+ goto no_match;
+ GET_CHAR(c, cptr, cbuf_end, cbuf_type);
+ if (s->ignore_case) {
+ c = lre_canonicalize(c, s->is_unicode);
+ }
+ idx_min = 0;
+ low = get_u32(pc + 0 * 8);
+ if (c < low)
+ goto no_match;
+ idx_max = n - 1;
+ high = get_u32(pc + idx_max * 8 + 4);
+ if (c > high)
+ goto no_match;
+ while (idx_min <= idx_max) {
+ idx = (idx_min + idx_max) / 2;
+ low = get_u32(pc + idx * 8);
+ high = get_u32(pc + idx * 8 + 4);
+ if (c < low)
+ idx_max = idx - 1;
+ else if (c > high)
+ idx_min = idx + 1;
+ else
+ goto range32_match;
+ }
+ goto no_match;
+ range32_match:
+ pc += 8 * n;
+ }
+ break;
+ case REOP_prev:
+ /* go to the previous char */
+ if (cptr == s->cbuf)
+ goto no_match;
+ PREV_CHAR(cptr, s->cbuf, cbuf_type);
+ break;
+ case REOP_simple_greedy_quant:
+ {
+ uint32_t next_pos, quant_min, quant_max;
+ size_t q;
+ intptr_t res;
+ const uint8_t *pc1;
+
+ next_pos = get_u32(pc);
+ quant_min = get_u32(pc + 4);
+ quant_max = get_u32(pc + 8);
+ pc += 16;
+ pc1 = pc;
+ pc += (int)next_pos;
+
+ q = 0;
+ for(;;) {
+ res = lre_exec_backtrack(s, capture, stack, stack_len,
+ pc1, cptr, TRUE);
+ if (res == -1)
+ return res;
+ if (!res)
+ break;
+ cptr = (uint8_t *)res;
+ q++;
+ if (q >= quant_max && quant_max != INT32_MAX)
+ break;
+ }
+ if (q < quant_min)
+ goto no_match;
+ if (q > quant_min) {
+ /* will examine all matches down to quant_min */
+ ret = push_state(s, capture, stack, stack_len,
+ pc1 - 16, cptr,
+ RE_EXEC_STATE_GREEDY_QUANT,
+ q - quant_min);
+ if (ret < 0)
+ return -1;
+ }
+ }
+ break;
+ default:
+ abort();
+ }
+ }
+}
+
+/* Return 1 if match, 0 if not match or -1 if error. cindex is the
+ starting position of the match and must be such as 0 <= cindex <=
+ clen. */
+int lre_exec(uint8_t **capture,
+ const uint8_t *bc_buf, const uint8_t *cbuf, int cindex, int clen,
+ int cbuf_type, void *opaque)
+{
+ REExecContext s_s, *s = &s_s;
+ int re_flags, i, alloca_size, ret;
+ StackInt *stack_buf;
+
+ re_flags = lre_get_flags(bc_buf);
+ s->multi_line = (re_flags & LRE_FLAG_MULTILINE) != 0;
+ s->ignore_case = (re_flags & LRE_FLAG_IGNORECASE) != 0;
+ s->is_unicode = (re_flags & LRE_FLAG_UNICODE) != 0;
+ s->capture_count = bc_buf[RE_HEADER_CAPTURE_COUNT];
+ s->stack_size_max = bc_buf[RE_HEADER_STACK_SIZE];
+ s->cbuf = cbuf;
+ s->cbuf_end = cbuf + (clen << cbuf_type);
+ s->cbuf_type = cbuf_type;
+ if (s->cbuf_type == 1 && s->is_unicode)
+ s->cbuf_type = 2;
+ s->opaque = opaque;
+
+ s->state_size = sizeof(REExecState) +
+ s->capture_count * sizeof(capture[0]) * 2 +
+ s->stack_size_max * sizeof(stack_buf[0]);
+ s->state_stack = NULL;
+ s->state_stack_len = 0;
+ s->state_stack_size = 0;
+
+ for(i = 0; i < s->capture_count * 2; i++)
+ capture[i] = NULL;
+ alloca_size = s->stack_size_max * sizeof(stack_buf[0]);
+ stack_buf = alloca(alloca_size);
+ ret = lre_exec_backtrack(s, capture, stack_buf, 0, bc_buf + RE_HEADER_LEN,
+ cbuf + (cindex << cbuf_type), FALSE);
+ lre_realloc(s->opaque, s->state_stack, 0);
+ return ret;
+}
+
+int lre_get_capture_count(const uint8_t *bc_buf)
+{
+ return bc_buf[RE_HEADER_CAPTURE_COUNT];
+}
+
+int lre_get_flags(const uint8_t *bc_buf)
+{
+ return bc_buf[RE_HEADER_FLAGS];
+}
+
+/* Return NULL if no group names. Otherwise, return a pointer to
+ 'capture_count - 1' zero terminated UTF-8 strings. */
+const char *lre_get_groupnames(const uint8_t *bc_buf)
+{
+ uint32_t re_bytecode_len;
+ if ((lre_get_flags(bc_buf) & LRE_FLAG_NAMED_GROUPS) == 0)
+ return NULL;
+ re_bytecode_len = get_u32(bc_buf + RE_HEADER_BYTECODE_LEN);
+ return (const char *)(bc_buf + RE_HEADER_LEN + re_bytecode_len);
+}
+
+#ifdef TEST
+
+BOOL lre_check_stack_overflow(void *opaque, size_t alloca_size)
+{
+ return FALSE;
+}
+
+void *lre_realloc(void *opaque, void *ptr, size_t size)
+{
+ return realloc(ptr, size);
+}
+
+int main(int argc, char **argv)
+{
+ int len, flags, ret, i;
+ uint8_t *bc;
+ char error_msg[64];
+ uint8_t *capture[CAPTURE_COUNT_MAX * 2];
+ const char *input;
+ int input_len, capture_count;
+
+ if (argc < 4) {
+ printf("usage: %s regexp flags input\n", argv[0]);
+ return 1;
+ }
+ flags = atoi(argv[2]);
+ bc = lre_compile(&len, error_msg, sizeof(error_msg), argv[1],
+ strlen(argv[1]), flags, NULL);
+ if (!bc) {
+ fprintf(stderr, "error: %s\n", error_msg);
+ exit(1);
+ }
+
+ input = argv[3];
+ input_len = strlen(input);
+
+ ret = lre_exec(capture, bc, (uint8_t *)input, 0, input_len, 0, NULL);
+ printf("ret=%d\n", ret);
+ if (ret == 1) {
+ capture_count = lre_get_capture_count(bc);
+ for(i = 0; i < 2 * capture_count; i++) {
+ uint8_t *ptr;
+ ptr = capture[i];
+ printf("%d: ", i);
+ if (!ptr)
+ printf("<nil>");
+ else
+ printf("%u", (int)(ptr - (uint8_t *)input));
+ printf("\n");
+ }
+ }
+ return 0;
+}
+#endif
diff --git a/src/couch_quickjs/quickjs/libregexp.h b/src/couch_quickjs/quickjs/libregexp.h
new file mode 100644
index 0000000..7af7ece
--- /dev/null
+++ b/src/couch_quickjs/quickjs/libregexp.h
@@ -0,0 +1,55 @@
+/*
+ * Regular Expression Engine
+ *
+ * Copyright (c) 2017-2018 Fabrice Bellard
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+#ifndef LIBREGEXP_H
+#define LIBREGEXP_H
+
+#include <stddef.h>
+#include <stdint.h>
+
+#define LRE_FLAG_GLOBAL (1 << 0)
+#define LRE_FLAG_IGNORECASE (1 << 1)
+#define LRE_FLAG_MULTILINE (1 << 2)
+#define LRE_FLAG_DOTALL (1 << 3)
+#define LRE_FLAG_UNICODE (1 << 4)
+#define LRE_FLAG_STICKY (1 << 5)
+#define LRE_FLAG_INDICES (1 << 6) /* Unused by libregexp, just recorded. */
+#define LRE_FLAG_NAMED_GROUPS (1 << 7) /* named groups are present in the regexp */
+
+uint8_t *lre_compile(int *plen, char *error_msg, int error_msg_size,
+ const char *buf, size_t buf_len, int re_flags,
+ void *opaque);
+int lre_get_capture_count(const uint8_t *bc_buf);
+int lre_get_flags(const uint8_t *bc_buf);
+const char *lre_get_groupnames(const uint8_t *bc_buf);
+int lre_exec(uint8_t **capture,
+ const uint8_t *bc_buf, const uint8_t *cbuf, int cindex, int clen,
+ int cbuf_type, void *opaque);
+
+int lre_parse_escape(const uint8_t **pp, int allow_utf16);
+
+/* must be provided by the user, return non zero if overflow */
+int lre_check_stack_overflow(void *opaque, size_t alloca_size);
+void *lre_realloc(void *opaque, void *ptr, size_t size);
+
+#endif /* LIBREGEXP_H */
diff --git a/src/couch_quickjs/quickjs/libunicode-table.h b/src/couch_quickjs/quickjs/libunicode-table.h
new file mode 100644
index 0000000..72d495e
--- /dev/null
+++ b/src/couch_quickjs/quickjs/libunicode-table.h
@@ -0,0 +1,4557 @@
+/* Compressed unicode tables */
+/* Automatically generated file - do not edit */
+
+#include <stdint.h>
+
+static const uint32_t case_conv_table1[370] = {
+ 0x00209a30, 0x00309a00, 0x005a8173, 0x00601730,
+ 0x006c0730, 0x006f81b3, 0x00701700, 0x007c0700,
+ 0x007f8100, 0x00803040, 0x009801c3, 0x00988190,
+ 0x00990640, 0x009c9040, 0x00a481b4, 0x00a52e40,
+ 0x00bc0130, 0x00bc8640, 0x00bf8170, 0x00c00100,
+ 0x00c08130, 0x00c10440, 0x00c30130, 0x00c38240,
+ 0x00c48230, 0x00c58240, 0x00c70130, 0x00c78130,
+ 0x00c80130, 0x00c88240, 0x00c98130, 0x00ca0130,
+ 0x00ca8100, 0x00cb0130, 0x00cb8130, 0x00cc0240,
+ 0x00cd0100, 0x00ce0130, 0x00ce8130, 0x00cf0100,
+ 0x00cf8130, 0x00d00640, 0x00d30130, 0x00d38240,
+ 0x00d48130, 0x00d60240, 0x00d70130, 0x00d78240,
+ 0x00d88230, 0x00d98440, 0x00db8130, 0x00dc0240,
+ 0x00de0240, 0x00df8100, 0x00e20350, 0x00e38350,
+ 0x00e50350, 0x00e69040, 0x00ee8100, 0x00ef1240,
+ 0x00f801b4, 0x00f88350, 0x00fa0240, 0x00fb0130,
+ 0x00fb8130, 0x00fc2840, 0x01100130, 0x01111240,
+ 0x011d0131, 0x011d8240, 0x011e8130, 0x011f0131,
+ 0x011f8201, 0x01208240, 0x01218130, 0x01220130,
+ 0x01228130, 0x01230a40, 0x01280101, 0x01288101,
+ 0x01290101, 0x01298100, 0x012a0100, 0x012b0200,
+ 0x012c8100, 0x012d8100, 0x012e0101, 0x01300100,
+ 0x01308101, 0x01318100, 0x01328101, 0x01330101,
+ 0x01340100, 0x01348100, 0x01350101, 0x01358101,
+ 0x01360101, 0x01378100, 0x01388101, 0x01390100,
+ 0x013a8100, 0x013e8101, 0x01400100, 0x01410101,
+ 0x01418100, 0x01438101, 0x01440100, 0x01448100,
+ 0x01450200, 0x01460100, 0x01490100, 0x014e8101,
+ 0x014f0101, 0x01a28173, 0x01b80440, 0x01bb0240,
+ 0x01bd8300, 0x01bf8130, 0x01c30130, 0x01c40330,
+ 0x01c60130, 0x01c70230, 0x01c801d0, 0x01c89130,
+ 0x01d18930, 0x01d60100, 0x01d68300, 0x01d801d3,
+ 0x01d89100, 0x01e10173, 0x01e18900, 0x01e60100,
+ 0x01e68200, 0x01e78130, 0x01e80173, 0x01e88173,
+ 0x01ea8173, 0x01eb0173, 0x01eb8100, 0x01ec1840,
+ 0x01f80173, 0x01f88173, 0x01f90100, 0x01f98100,
+ 0x01fa01a0, 0x01fa8173, 0x01fb8240, 0x01fc8130,
+ 0x01fd0240, 0x01fe8330, 0x02001030, 0x02082030,
+ 0x02182000, 0x02281000, 0x02302240, 0x02453640,
+ 0x02600130, 0x02608e40, 0x02678100, 0x02686040,
+ 0x0298a630, 0x02b0a600, 0x02c381b5, 0x08502631,
+ 0x08638131, 0x08668131, 0x08682b00, 0x087e8300,
+ 0x09d05011, 0x09f80610, 0x09fc0620, 0x0e400174,
+ 0x0e408174, 0x0e410174, 0x0e418174, 0x0e420174,
+ 0x0e428174, 0x0e430174, 0x0e438180, 0x0e440180,
+ 0x0e482b30, 0x0e5e8330, 0x0ebc8101, 0x0ebe8101,
+ 0x0ec70101, 0x0f007e40, 0x0f3f1840, 0x0f4b01b5,
+ 0x0f4b81b6, 0x0f4c01b6, 0x0f4c81b6, 0x0f4d01b7,
+ 0x0f4d8180, 0x0f4f0130, 0x0f506040, 0x0f800800,
+ 0x0f840830, 0x0f880600, 0x0f8c0630, 0x0f900800,
+ 0x0f940830, 0x0f980800, 0x0f9c0830, 0x0fa00600,
+ 0x0fa40630, 0x0fa801b0, 0x0fa88100, 0x0fa901d3,
+ 0x0fa98100, 0x0faa01d3, 0x0faa8100, 0x0fab01d3,
+ 0x0fab8100, 0x0fac8130, 0x0fad8130, 0x0fae8130,
+ 0x0faf8130, 0x0fb00800, 0x0fb40830, 0x0fb80200,
+ 0x0fb90400, 0x0fbb0200, 0x0fbc0201, 0x0fbd0201,
+ 0x0fbe0201, 0x0fc008b7, 0x0fc40867, 0x0fc808b8,
+ 0x0fcc0868, 0x0fd008b8, 0x0fd40868, 0x0fd80200,
+ 0x0fd901b9, 0x0fd981b1, 0x0fda01b9, 0x0fdb01b1,
+ 0x0fdb81d7, 0x0fdc0230, 0x0fdd0230, 0x0fde0161,
+ 0x0fdf0173, 0x0fe101b9, 0x0fe181b2, 0x0fe201ba,
+ 0x0fe301b2, 0x0fe381d8, 0x0fe40430, 0x0fe60162,
+ 0x0fe80200, 0x0fe901d0, 0x0fe981d0, 0x0feb01b0,
+ 0x0feb81d0, 0x0fec0230, 0x0fed0230, 0x0ff00201,
+ 0x0ff101d3, 0x0ff181d3, 0x0ff201ba, 0x0ff28101,
+ 0x0ff301b0, 0x0ff381d3, 0x0ff40230, 0x0ff50230,
+ 0x0ff60131, 0x0ff901ba, 0x0ff981b2, 0x0ffa01bb,
+ 0x0ffb01b2, 0x0ffb81d9, 0x0ffc0230, 0x0ffd0230,
+ 0x0ffe0162, 0x109301a0, 0x109501a0, 0x109581a0,
+ 0x10990131, 0x10a70101, 0x10b01031, 0x10b81001,
+ 0x10c18240, 0x125b1a31, 0x12681a01, 0x16003031,
+ 0x16183001, 0x16300240, 0x16310130, 0x16318130,
+ 0x16320130, 0x16328100, 0x16330100, 0x16338640,
+ 0x16368130, 0x16370130, 0x16378130, 0x16380130,
+ 0x16390240, 0x163a8240, 0x163f0230, 0x16406440,
+ 0x16758440, 0x16790240, 0x16802600, 0x16938100,
+ 0x16968100, 0x53202e40, 0x53401c40, 0x53910e40,
+ 0x53993e40, 0x53bc8440, 0x53be8130, 0x53bf0a40,
+ 0x53c58240, 0x53c68130, 0x53c80440, 0x53ca0101,
+ 0x53cb1440, 0x53d50130, 0x53d58130, 0x53d60130,
+ 0x53d68130, 0x53d70130, 0x53d80130, 0x53d88130,
+ 0x53d90130, 0x53d98131, 0x53da1040, 0x53e20131,
+ 0x53e28130, 0x53e30130, 0x53e38440, 0x53e80240,
+ 0x53eb0440, 0x53fa8240, 0x55a98101, 0x55b85020,
+ 0x7d8001b2, 0x7d8081b2, 0x7d8101b2, 0x7d8181da,
+ 0x7d8201da, 0x7d8281b3, 0x7d8301b3, 0x7d8981bb,
+ 0x7d8a01bb, 0x7d8a81bb, 0x7d8b01bc, 0x7d8b81bb,
+ 0x7f909a31, 0x7fa09a01, 0x82002831, 0x82142801,
+ 0x82582431, 0x826c2401, 0x82b80b31, 0x82be0f31,
+ 0x82c60731, 0x82ca0231, 0x82cb8b01, 0x82d18f01,
+ 0x82d98701, 0x82dd8201, 0x86403331, 0x86603301,
+ 0x8c502031, 0x8c602001, 0xb7202031, 0xb7302001,
+ 0xf4802231, 0xf4912201,
+};
+
+static const uint8_t case_conv_table2[370] = {
+ 0x01, 0x00, 0x9c, 0x06, 0x07, 0x4d, 0x03, 0x04,
+ 0x10, 0x00, 0x8f, 0x0b, 0x00, 0x00, 0x11, 0x00,
+ 0x08, 0x00, 0x53, 0x4a, 0x51, 0x00, 0x52, 0x00,
+ 0x53, 0x00, 0x3a, 0x54, 0x55, 0x00, 0x57, 0x59,
+ 0x3f, 0x5d, 0x5c, 0x00, 0x46, 0x61, 0x63, 0x42,
+ 0x64, 0x00, 0x66, 0x00, 0x68, 0x00, 0x6a, 0x00,
+ 0x6c, 0x00, 0x6e, 0x00, 0x00, 0x40, 0x00, 0x00,
+ 0x00, 0x00, 0x1a, 0x00, 0x93, 0x00, 0x00, 0x20,
+ 0x35, 0x00, 0x27, 0x00, 0x21, 0x00, 0x24, 0x22,
+ 0x2a, 0x00, 0x13, 0x6b, 0x6d, 0x00, 0x26, 0x24,
+ 0x27, 0x14, 0x16, 0x18, 0x1b, 0x1c, 0x3e, 0x1e,
+ 0x3f, 0x1f, 0x39, 0x3d, 0x22, 0x21, 0x41, 0x1e,
+ 0x40, 0x25, 0x25, 0x26, 0x28, 0x20, 0x2a, 0x48,
+ 0x2c, 0x43, 0x2e, 0x4b, 0x30, 0x4c, 0x32, 0x44,
+ 0x42, 0x99, 0x00, 0x00, 0x95, 0x8f, 0x7d, 0x7e,
+ 0x83, 0x84, 0x12, 0x80, 0x82, 0x76, 0x77, 0x12,
+ 0x7b, 0xa3, 0x7c, 0x78, 0x79, 0x8a, 0x92, 0x98,
+ 0xa6, 0xa0, 0x85, 0x00, 0x9a, 0xa1, 0x93, 0x75,
+ 0x33, 0x95, 0x00, 0x8e, 0x00, 0x74, 0x99, 0x98,
+ 0x97, 0x96, 0x00, 0x00, 0x9e, 0x00, 0x9c, 0x00,
+ 0xa1, 0xa0, 0x15, 0x2e, 0x2f, 0x30, 0xb4, 0xb5,
+ 0x4f, 0xaa, 0xa9, 0x12, 0x14, 0x1e, 0x21, 0x22,
+ 0x22, 0x2a, 0x34, 0x35, 0xa6, 0xa7, 0x36, 0x1f,
+ 0x49, 0x00, 0x00, 0x97, 0x01, 0x5a, 0xda, 0x1d,
+ 0x36, 0x05, 0x00, 0xc4, 0xc3, 0xc6, 0xc5, 0xc8,
+ 0xc7, 0xca, 0xc9, 0xcc, 0xcb, 0xc4, 0xd5, 0x45,
+ 0xd6, 0x42, 0xd7, 0x46, 0xd8, 0xce, 0xd0, 0xd2,
+ 0xd4, 0xda, 0xd9, 0xee, 0xf6, 0xfe, 0x0e, 0x07,
+ 0x0f, 0x80, 0x9f, 0x00, 0x21, 0x80, 0xa3, 0xed,
+ 0x00, 0xc0, 0x40, 0xc6, 0x60, 0xe7, 0xdb, 0xe6,
+ 0x99, 0xc0, 0x00, 0x00, 0x06, 0x60, 0xdc, 0x29,
+ 0xfd, 0x15, 0x12, 0x06, 0x16, 0xf8, 0xdd, 0x06,
+ 0x15, 0x12, 0x84, 0x08, 0xc6, 0x16, 0xff, 0xdf,
+ 0x03, 0xc0, 0x40, 0x00, 0x46, 0x60, 0xde, 0xe0,
+ 0x6d, 0x37, 0x38, 0x39, 0x15, 0x14, 0x17, 0x16,
+ 0x00, 0x1a, 0x19, 0x1c, 0x1b, 0x00, 0x5f, 0xb7,
+ 0x65, 0x44, 0x47, 0x00, 0x4f, 0x62, 0x4e, 0x50,
+ 0x00, 0x00, 0x48, 0x00, 0x00, 0x00, 0xa3, 0xa4,
+ 0xa5, 0x00, 0x00, 0x00, 0x00, 0x00, 0xb6, 0x00,
+ 0x00, 0x5a, 0x00, 0x47, 0x00, 0x5b, 0x56, 0x58,
+ 0x60, 0x5e, 0x70, 0x69, 0x6f, 0x4e, 0x00, 0x3b,
+ 0x67, 0xb8, 0x00, 0x00, 0x00, 0x00, 0x45, 0xa8,
+ 0x8a, 0x8b, 0x8c, 0xab, 0xac, 0x58, 0x58, 0xaf,
+ 0x94, 0xb0, 0x6f, 0xb2, 0x5d, 0x5c, 0x5f, 0x5e,
+ 0x61, 0x60, 0x66, 0x67, 0x68, 0x69, 0x62, 0x63,
+ 0x64, 0x65, 0x6b, 0x6a, 0x6d, 0x6c, 0x6f, 0x6e,
+ 0x71, 0x70,
+};
+
+static const uint16_t case_conv_ext[58] = {
+ 0x0399, 0x0308, 0x0301, 0x03a5, 0x0313, 0x0300, 0x0342, 0x0391,
+ 0x0397, 0x03a9, 0x0046, 0x0049, 0x004c, 0x0053, 0x0069, 0x0307,
+ 0x02bc, 0x004e, 0x004a, 0x030c, 0x0535, 0x0552, 0x0048, 0x0331,
+ 0x0054, 0x0057, 0x030a, 0x0059, 0x0041, 0x02be, 0x1f08, 0x1f80,
+ 0x1f28, 0x1f90, 0x1f68, 0x1fa0, 0x1fba, 0x0386, 0x1fb3, 0x1fca,
+ 0x0389, 0x1fc3, 0x03a1, 0x1ffa, 0x038f, 0x1ff3, 0x0544, 0x0546,
+ 0x053b, 0x054e, 0x053d, 0x03b8, 0x0462, 0xa64a, 0x1e60, 0x03c9,
+ 0x006b, 0x00e5,
+};
+
+static const uint8_t unicode_prop_Cased1_table[196] = {
+ 0x40, 0xa9, 0x80, 0x8e, 0x80, 0xfc, 0x80, 0xd3,
+ 0x80, 0x8c, 0x80, 0x8d, 0x81, 0x8d, 0x02, 0x80,
+ 0xe1, 0x80, 0x91, 0x85, 0x9a, 0x01, 0x00, 0x01,
+ 0x11, 0x00, 0x01, 0x04, 0x08, 0x01, 0x08, 0x30,
+ 0x08, 0x01, 0x15, 0x20, 0x00, 0x39, 0x99, 0x31,
+ 0x9d, 0x84, 0x40, 0x94, 0x80, 0xd6, 0x82, 0xa6,
+ 0x80, 0x41, 0x62, 0x80, 0xa6, 0x80, 0x4b, 0x72,
+ 0x80, 0x4c, 0x02, 0xf8, 0x02, 0x80, 0x8f, 0x80,
+ 0xb0, 0x40, 0xdb, 0x08, 0x80, 0x41, 0xd0, 0x80,
+ 0x8c, 0x80, 0x8f, 0x8c, 0xe4, 0x03, 0x01, 0x89,
+ 0x00, 0x14, 0x28, 0x10, 0x11, 0x02, 0x01, 0x18,
+ 0x0b, 0x24, 0x4b, 0x26, 0x01, 0x01, 0x86, 0xe5,
+ 0x80, 0x60, 0x79, 0xb6, 0x81, 0x40, 0x91, 0x81,
+ 0xbd, 0x88, 0x94, 0x05, 0x80, 0x98, 0x80, 0xa2,
+ 0x00, 0x80, 0x9b, 0x12, 0x82, 0x43, 0x34, 0xa2,
+ 0x06, 0x80, 0x8d, 0x60, 0x5c, 0x15, 0x01, 0x10,
+ 0xa9, 0x80, 0x88, 0x60, 0xcc, 0x44, 0xd4, 0x80,
+ 0xc6, 0x01, 0x08, 0x09, 0x0b, 0x80, 0x8b, 0x00,
+ 0x06, 0x80, 0xc0, 0x03, 0x0f, 0x06, 0x80, 0x9b,
+ 0x03, 0x04, 0x00, 0x16, 0x80, 0x41, 0x53, 0x81,
+ 0x98, 0x80, 0x98, 0x80, 0x9e, 0x80, 0x98, 0x80,
+ 0x9e, 0x80, 0x98, 0x80, 0x9e, 0x80, 0x98, 0x80,
+ 0x9e, 0x80, 0x98, 0x07, 0x47, 0x33, 0x89, 0x80,
+ 0x93, 0x2d, 0x41, 0x04, 0xbd, 0x50, 0xc1, 0x99,
+ 0x85, 0x99, 0x85, 0x99,
+};
+
+static const uint8_t unicode_prop_Cased1_index[21] = {
+ 0xb9, 0x02, 0xe0, // 002B9 at 39
+ 0xc0, 0x1d, 0x20, // 01DC0 at 65
+ 0xe5, 0x2c, 0x20, // 02CE5 at 97
+ 0xb1, 0x07, 0x21, // 107B1 at 129
+ 0xc1, 0xd6, 0x21, // 1D6C1 at 161
+ 0x4a, 0xf1, 0x01, // 1F14A at 192
+ 0x8a, 0xf1, 0x01, // 1F18A at 224 (upper bound)
+};
+
+static const uint8_t unicode_prop_Case_Ignorable_table[737] = {
+ 0xa6, 0x05, 0x80, 0x8a, 0x80, 0xa2, 0x00, 0x80,
+ 0xc6, 0x03, 0x00, 0x03, 0x01, 0x81, 0x41, 0xf6,
+ 0x40, 0xbf, 0x19, 0x18, 0x88, 0x08, 0x80, 0x40,
+ 0xfa, 0x86, 0x40, 0xce, 0x04, 0x80, 0xb0, 0xac,
+ 0x00, 0x01, 0x01, 0x00, 0xab, 0x80, 0x8a, 0x85,
+ 0x89, 0x8a, 0x00, 0xa2, 0x80, 0x89, 0x94, 0x8f,
+ 0x80, 0xe4, 0x38, 0x89, 0x03, 0xa0, 0x00, 0x80,
+ 0x9d, 0x9a, 0xda, 0x8a, 0xb9, 0x8a, 0x18, 0x08,
+ 0x97, 0x97, 0xaa, 0x82, 0xab, 0x06, 0x0d, 0x87,
+ 0xa8, 0xb9, 0xb6, 0x00, 0x03, 0x3b, 0x02, 0x86,
+ 0x89, 0x81, 0x8c, 0x80, 0x8e, 0x80, 0xb9, 0x03,
+ 0x1f, 0x80, 0x93, 0x81, 0x99, 0x01, 0x81, 0xb8,
+ 0x03, 0x0b, 0x09, 0x12, 0x80, 0x9d, 0x0a, 0x80,
+ 0x8a, 0x81, 0xb8, 0x03, 0x20, 0x0b, 0x80, 0x93,
+ 0x81, 0x95, 0x28, 0x80, 0xb9, 0x01, 0x00, 0x1f,
+ 0x06, 0x81, 0x8a, 0x81, 0x9d, 0x80, 0xbc, 0x80,
+ 0x8b, 0x80, 0xb1, 0x02, 0x80, 0xb6, 0x00, 0x14,
+ 0x10, 0x1e, 0x81, 0x8a, 0x81, 0x9c, 0x80, 0xb9,
+ 0x01, 0x05, 0x04, 0x81, 0x93, 0x81, 0x9b, 0x81,
+ 0xb8, 0x0b, 0x1f, 0x80, 0x93, 0x81, 0x9c, 0x80,
+ 0xc7, 0x06, 0x10, 0x80, 0xd9, 0x01, 0x86, 0x8a,
+ 0x88, 0xe1, 0x01, 0x88, 0x88, 0x00, 0x86, 0xc8,
+ 0x81, 0x9a, 0x00, 0x00, 0x80, 0xb6, 0x8d, 0x04,
+ 0x01, 0x84, 0x8a, 0x80, 0xa3, 0x88, 0x80, 0xe5,
+ 0x18, 0x28, 0x09, 0x81, 0x98, 0x0b, 0x82, 0x8f,
+ 0x83, 0x8c, 0x01, 0x0d, 0x80, 0x8e, 0x80, 0xdd,
+ 0x80, 0x42, 0x5f, 0x82, 0x43, 0xb1, 0x82, 0x9c,
+ 0x81, 0x9d, 0x81, 0x9d, 0x81, 0xbf, 0x08, 0x37,
+ 0x01, 0x8a, 0x10, 0x20, 0xac, 0x84, 0xb2, 0x80,
+ 0xc0, 0x81, 0xa1, 0x80, 0xf5, 0x13, 0x81, 0x88,
+ 0x05, 0x82, 0x40, 0xda, 0x09, 0x80, 0xb9, 0x00,
+ 0x30, 0x00, 0x01, 0x3d, 0x89, 0x08, 0xa6, 0x07,
+ 0x9e, 0xb0, 0x83, 0xaf, 0x00, 0x20, 0x04, 0x80,
+ 0xa7, 0x88, 0x8b, 0x81, 0x9f, 0x19, 0x08, 0x82,
+ 0xb7, 0x00, 0x0a, 0x00, 0x82, 0xb9, 0x39, 0x81,
+ 0xbf, 0x85, 0xd1, 0x10, 0x8c, 0x06, 0x18, 0x28,
+ 0x11, 0xb1, 0xbe, 0x8c, 0x80, 0xa1, 0xe4, 0x41,
+ 0xbc, 0x00, 0x82, 0x8a, 0x82, 0x8c, 0x82, 0x8c,
+ 0x82, 0x8c, 0x81, 0x8b, 0x27, 0x81, 0x89, 0x01,
+ 0x01, 0x84, 0xb0, 0x20, 0x89, 0x00, 0x8c, 0x80,
+ 0x8f, 0x8c, 0xb2, 0xa0, 0x4b, 0x8a, 0x81, 0xf0,
+ 0x82, 0xfc, 0x80, 0x8e, 0x80, 0xdf, 0x9f, 0xae,
+ 0x80, 0x41, 0xd4, 0x80, 0xa3, 0x1a, 0x24, 0x80,
+ 0xdc, 0x85, 0xdc, 0x82, 0x60, 0x6f, 0x15, 0x80,
+ 0x44, 0xe1, 0x85, 0x41, 0x0d, 0x80, 0xe1, 0x18,
+ 0x89, 0x00, 0x9b, 0x83, 0xcf, 0x81, 0x8d, 0xa1,
+ 0xcd, 0x80, 0x96, 0x82, 0xe6, 0x12, 0x0f, 0x02,
+ 0x03, 0x80, 0x98, 0x0c, 0x80, 0x40, 0x96, 0x81,
+ 0x99, 0x91, 0x8c, 0x80, 0xa5, 0x87, 0x98, 0x8a,
+ 0xad, 0x82, 0xaf, 0x01, 0x19, 0x81, 0x90, 0x80,
+ 0x94, 0x81, 0xc1, 0x29, 0x09, 0x81, 0x8b, 0x07,
+ 0x80, 0xa2, 0x80, 0x8a, 0x80, 0xb2, 0x00, 0x11,
+ 0x0c, 0x08, 0x80, 0x9a, 0x80, 0x8d, 0x0c, 0x08,
+ 0x80, 0xe3, 0x84, 0x88, 0x82, 0xf8, 0x01, 0x03,
+ 0x80, 0x60, 0x4f, 0x2f, 0x80, 0x40, 0x92, 0x90,
+ 0x42, 0x3c, 0x8f, 0x10, 0x8b, 0x8f, 0xa1, 0x01,
+ 0x80, 0x40, 0xa8, 0x06, 0x05, 0x80, 0x8a, 0x80,
+ 0xa2, 0x00, 0x80, 0xae, 0x80, 0xac, 0x81, 0xc2,
+ 0x80, 0x94, 0x82, 0x42, 0x00, 0x80, 0x40, 0xe1,
+ 0x80, 0x40, 0x94, 0x84, 0x44, 0x04, 0x28, 0xa9,
+ 0x80, 0x88, 0x42, 0x45, 0x10, 0x0c, 0x83, 0xa7,
+ 0x13, 0x80, 0x40, 0xa4, 0x81, 0x42, 0x3c, 0x83,
+ 0x41, 0x82, 0x81, 0xcf, 0x82, 0xc5, 0x8a, 0xb0,
+ 0x83, 0xfa, 0x80, 0xb5, 0x8e, 0xa8, 0x01, 0x81,
+ 0x89, 0x82, 0xb0, 0x19, 0x09, 0x03, 0x80, 0x89,
+ 0x80, 0xb1, 0x82, 0xa3, 0x20, 0x87, 0xbd, 0x80,
+ 0x8b, 0x81, 0xb3, 0x88, 0x89, 0x19, 0x80, 0xde,
+ 0x11, 0x00, 0x0d, 0x01, 0x80, 0x40, 0x9c, 0x02,
+ 0x87, 0x94, 0x81, 0xb8, 0x0a, 0x80, 0xa4, 0x32,
+ 0x84, 0x40, 0xc2, 0x39, 0x10, 0x80, 0x96, 0x80,
+ 0xd3, 0x28, 0x03, 0x08, 0x81, 0x40, 0xed, 0x1d,
+ 0x08, 0x81, 0x9a, 0x81, 0xd4, 0x39, 0x00, 0x81,
+ 0xe9, 0x00, 0x01, 0x28, 0x80, 0xe4, 0x11, 0x18,
+ 0x84, 0x41, 0x02, 0x88, 0x01, 0x40, 0xff, 0x08,
+ 0x03, 0x80, 0x40, 0x8f, 0x19, 0x0b, 0x80, 0x9f,
+ 0x89, 0xa7, 0x29, 0x1f, 0x80, 0x88, 0x29, 0x82,
+ 0xad, 0x8c, 0x01, 0x41, 0x95, 0x30, 0x28, 0x80,
+ 0xd1, 0x95, 0x0e, 0x01, 0x01, 0xf9, 0x2a, 0x00,
+ 0x08, 0x30, 0x80, 0xc7, 0x0a, 0x00, 0x80, 0x41,
+ 0x5a, 0x81, 0x8a, 0x81, 0xb3, 0x24, 0x00, 0x80,
+ 0x54, 0xec, 0x90, 0x85, 0x8e, 0x60, 0x36, 0x99,
+ 0x84, 0xba, 0x86, 0x88, 0x83, 0x44, 0x0a, 0x80,
+ 0xbe, 0x90, 0xbf, 0x08, 0x81, 0x60, 0x40, 0x0a,
+ 0x18, 0x30, 0x81, 0x4c, 0x9d, 0x08, 0x83, 0x52,
+ 0x5b, 0xad, 0x81, 0x96, 0x42, 0x1f, 0x82, 0x88,
+ 0x8f, 0x0e, 0x9d, 0x83, 0x40, 0x93, 0x82, 0x47,
+ 0xba, 0xb6, 0x83, 0xb1, 0x38, 0x8d, 0x80, 0x95,
+ 0x20, 0x8e, 0x45, 0x4f, 0x30, 0x90, 0x0e, 0x01,
+ 0x04, 0x84, 0xbd, 0xa0, 0x80, 0x40, 0x9f, 0x8d,
+ 0x41, 0x6f, 0x80, 0xbc, 0x83, 0x41, 0xfa, 0x84,
+ 0x43, 0xdf, 0x86, 0xec, 0x87, 0x4a, 0xae, 0x84,
+ 0x6c, 0x0c, 0x00, 0x80, 0x9d, 0xdf, 0xff, 0x40,
+ 0xef,
+};
+
+static const uint8_t unicode_prop_Case_Ignorable_index[69] = {
+ 0xbe, 0x05, 0x00, // 005BE at 32
+ 0xfe, 0x07, 0x00, // 007FE at 64
+ 0x52, 0x0a, 0xa0, // 00A52 at 101
+ 0xc1, 0x0b, 0x00, // 00BC1 at 128
+ 0x82, 0x0d, 0x00, // 00D82 at 160
+ 0x3f, 0x10, 0x80, // 0103F at 196
+ 0xd4, 0x17, 0x40, // 017D4 at 226
+ 0xcf, 0x1a, 0x20, // 01ACF at 257
+ 0xf5, 0x1c, 0x00, // 01CF5 at 288
+ 0x80, 0x20, 0x00, // 02080 at 320
+ 0x16, 0xa0, 0x00, // 0A016 at 352
+ 0xc6, 0xa8, 0x00, // 0A8C6 at 384
+ 0xc2, 0xaa, 0x60, // 0AAC2 at 419
+ 0x56, 0xfe, 0x20, // 0FE56 at 449
+ 0xb1, 0x07, 0x01, // 107B1 at 480
+ 0x75, 0x10, 0x01, // 11075 at 512
+ 0xeb, 0x12, 0x21, // 112EB at 545
+ 0x41, 0x16, 0x01, // 11641 at 576
+ 0x5c, 0x1a, 0x01, // 11A5C at 608
+ 0x43, 0x1f, 0x01, // 11F43 at 640
+ 0x2e, 0xcf, 0x41, // 1CF2E at 674
+ 0x25, 0xe0, 0x01, // 1E025 at 704
+ 0xf0, 0x01, 0x0e, // E01F0 at 736 (upper bound)
+};
+
+static const uint8_t unicode_prop_ID_Start_table[1100] = {
+ 0xc0, 0x99, 0x85, 0x99, 0xae, 0x80, 0x89, 0x03,
+ 0x04, 0x96, 0x80, 0x9e, 0x80, 0x41, 0xc9, 0x83,
+ 0x8b, 0x8d, 0x26, 0x00, 0x80, 0x40, 0x80, 0x20,
+ 0x09, 0x18, 0x05, 0x00, 0x10, 0x00, 0x93, 0x80,
+ 0xd2, 0x80, 0x40, 0x8a, 0x87, 0x40, 0xa5, 0x80,
+ 0xa5, 0x08, 0x85, 0xa8, 0xc6, 0x9a, 0x1b, 0xac,
+ 0xaa, 0xa2, 0x08, 0xe2, 0x00, 0x8e, 0x0e, 0x81,
+ 0x89, 0x11, 0x80, 0x8f, 0x00, 0x9d, 0x9c, 0xd8,
+ 0x8a, 0x80, 0x97, 0xa0, 0x88, 0x0b, 0x04, 0x95,
+ 0x18, 0x88, 0x02, 0x80, 0x96, 0x98, 0x86, 0x8a,
+ 0x84, 0x97, 0x05, 0x90, 0xa9, 0xb9, 0xb5, 0x10,
+ 0x91, 0x06, 0x89, 0x8e, 0x8f, 0x1f, 0x09, 0x81,
+ 0x95, 0x06, 0x00, 0x13, 0x10, 0x8f, 0x80, 0x8c,
+ 0x08, 0x82, 0x8d, 0x81, 0x89, 0x07, 0x2b, 0x09,
+ 0x95, 0x06, 0x01, 0x01, 0x01, 0x9e, 0x18, 0x80,
+ 0x92, 0x82, 0x8f, 0x88, 0x02, 0x80, 0x95, 0x06,
+ 0x01, 0x04, 0x10, 0x91, 0x80, 0x8e, 0x81, 0x96,
+ 0x80, 0x8a, 0x39, 0x09, 0x95, 0x06, 0x01, 0x04,
+ 0x10, 0x9d, 0x08, 0x82, 0x8e, 0x80, 0x90, 0x00,
+ 0x2a, 0x10, 0x1a, 0x08, 0x00, 0x0a, 0x0a, 0x12,
+ 0x8b, 0x95, 0x80, 0xb3, 0x38, 0x10, 0x96, 0x80,
+ 0x8f, 0x10, 0x99, 0x11, 0x01, 0x81, 0x9d, 0x03,
+ 0x38, 0x10, 0x96, 0x80, 0x89, 0x04, 0x10, 0x9e,
+ 0x08, 0x81, 0x8e, 0x81, 0x90, 0x88, 0x02, 0x80,
+ 0xa8, 0x08, 0x8f, 0x04, 0x17, 0x82, 0x97, 0x2c,
+ 0x91, 0x82, 0x97, 0x80, 0x88, 0x00, 0x0e, 0xb9,
+ 0xaf, 0x01, 0x8b, 0x86, 0xb9, 0x08, 0x00, 0x20,
+ 0x97, 0x00, 0x80, 0x89, 0x01, 0x88, 0x01, 0x20,
+ 0x80, 0x94, 0x83, 0x9f, 0x80, 0xbe, 0x38, 0xa3,
+ 0x9a, 0x84, 0xf2, 0xaa, 0x93, 0x80, 0x8f, 0x2b,
+ 0x1a, 0x02, 0x0e, 0x13, 0x8c, 0x8b, 0x80, 0x90,
+ 0xa5, 0x00, 0x20, 0x81, 0xaa, 0x80, 0x41, 0x4c,
+ 0x03, 0x0e, 0x00, 0x03, 0x81, 0xa8, 0x03, 0x81,
+ 0xa0, 0x03, 0x0e, 0x00, 0x03, 0x81, 0x8e, 0x80,
+ 0xb8, 0x03, 0x81, 0xc2, 0xa4, 0x8f, 0x8f, 0xd5,
+ 0x0d, 0x82, 0x42, 0x6b, 0x81, 0x90, 0x80, 0x99,
+ 0x84, 0xca, 0x82, 0x8a, 0x86, 0x91, 0x8c, 0x92,
+ 0x8d, 0x91, 0x8d, 0x8c, 0x02, 0x8e, 0xb3, 0xa2,
+ 0x03, 0x80, 0xc2, 0xd8, 0x86, 0xa8, 0x00, 0x84,
+ 0xc5, 0x89, 0x9e, 0xb0, 0x9d, 0x0c, 0x8a, 0xab,
+ 0x83, 0x99, 0xb5, 0x96, 0x88, 0xb4, 0xd1, 0x80,
+ 0xdc, 0xae, 0x90, 0x87, 0xb5, 0x9d, 0x8c, 0x81,
+ 0x89, 0xab, 0x99, 0xa3, 0xa8, 0x82, 0x89, 0xa3,
+ 0x81, 0x88, 0x86, 0xaa, 0x0a, 0xa8, 0x18, 0x28,
+ 0x0a, 0x04, 0x40, 0xbf, 0xbf, 0x41, 0x15, 0x0d,
+ 0x81, 0xa5, 0x0d, 0x0f, 0x00, 0x00, 0x00, 0x80,
+ 0x9e, 0x81, 0xb4, 0x06, 0x00, 0x12, 0x06, 0x13,
+ 0x0d, 0x83, 0x8c, 0x22, 0x06, 0xf3, 0x80, 0x8c,
+ 0x80, 0x8f, 0x8c, 0xe4, 0x03, 0x01, 0x89, 0x00,
+ 0x0d, 0x28, 0x00, 0x00, 0x80, 0x8f, 0x0b, 0x24,
+ 0x18, 0x90, 0xa8, 0x4a, 0x76, 0x40, 0xe4, 0x2b,
+ 0x11, 0x8b, 0xa5, 0x00, 0x20, 0x81, 0xb7, 0x30,
+ 0x8f, 0x96, 0x88, 0x30, 0x30, 0x30, 0x30, 0x30,
+ 0x30, 0x30, 0x86, 0x42, 0x25, 0x82, 0x98, 0x88,
+ 0x34, 0x0c, 0x83, 0xd5, 0x1c, 0x80, 0xd9, 0x03,
+ 0x84, 0xaa, 0x80, 0xdd, 0x90, 0x9f, 0xaf, 0x8f,
+ 0x41, 0xff, 0x59, 0xbf, 0xbf, 0x60, 0x56, 0x8c,
+ 0xc2, 0xad, 0x81, 0x41, 0x0c, 0x82, 0x8f, 0x89,
+ 0x81, 0x93, 0xae, 0x8f, 0x9e, 0x81, 0xcf, 0xa6,
+ 0x88, 0x81, 0xe6, 0x81, 0xbf, 0x21, 0x00, 0x04,
+ 0x97, 0x8f, 0x02, 0x03, 0x80, 0x96, 0x9c, 0xb3,
+ 0x8d, 0xb1, 0xbd, 0x2a, 0x00, 0x81, 0x8a, 0x9b,
+ 0x89, 0x96, 0x98, 0x9c, 0x86, 0xae, 0x9b, 0x80,
+ 0x8f, 0x20, 0x89, 0x89, 0x20, 0xa8, 0x96, 0x10,
+ 0x87, 0x93, 0x96, 0x10, 0x82, 0xb1, 0x00, 0x11,
+ 0x0c, 0x08, 0x00, 0x97, 0x11, 0x8a, 0x32, 0x8b,
+ 0x29, 0x29, 0x85, 0x88, 0x30, 0x30, 0xaa, 0x80,
+ 0x8d, 0x85, 0xf2, 0x9c, 0x60, 0x2b, 0xa3, 0x8b,
+ 0x96, 0x83, 0xb0, 0x60, 0x21, 0x03, 0x41, 0x6d,
+ 0x81, 0xe9, 0xa5, 0x86, 0x8b, 0x24, 0x00, 0x89,
+ 0x80, 0x8c, 0x04, 0x00, 0x01, 0x01, 0x80, 0xeb,
+ 0xa0, 0x41, 0x6a, 0x91, 0xbf, 0x81, 0xb5, 0xa7,
+ 0x8b, 0xf3, 0x20, 0x40, 0x86, 0xa3, 0x99, 0x85,
+ 0x99, 0x8a, 0xd8, 0x15, 0x0d, 0x0d, 0x0a, 0xa2,
+ 0x8b, 0x80, 0x99, 0x80, 0x92, 0x01, 0x80, 0x8e,
+ 0x81, 0x8d, 0xa1, 0xfa, 0xc4, 0xb4, 0x41, 0x0a,
+ 0x9c, 0x82, 0xb0, 0xae, 0x9f, 0x8c, 0x9d, 0x84,
+ 0xa5, 0x89, 0x9d, 0x81, 0xa3, 0x1f, 0x04, 0xa9,
+ 0x40, 0x9d, 0x91, 0xa3, 0x83, 0xa3, 0x83, 0xa7,
+ 0x87, 0xb3, 0x8b, 0x8a, 0x80, 0x8e, 0x06, 0x01,
+ 0x80, 0x8a, 0x80, 0x8e, 0x06, 0x01, 0xc2, 0x41,
+ 0x36, 0x88, 0x95, 0x89, 0x87, 0x97, 0x28, 0xa9,
+ 0x80, 0x88, 0xc4, 0x29, 0x00, 0xab, 0x01, 0x10,
+ 0x81, 0x96, 0x89, 0x96, 0x88, 0x9e, 0xc0, 0x92,
+ 0x01, 0x89, 0x95, 0x89, 0x99, 0xc5, 0xb7, 0x29,
+ 0xbf, 0x80, 0x8e, 0x18, 0x10, 0x9c, 0xa9, 0x9c,
+ 0x82, 0x9c, 0xa2, 0x38, 0x9b, 0x9a, 0xb5, 0x89,
+ 0x95, 0x89, 0x92, 0x8c, 0x91, 0xed, 0xc8, 0xb6,
+ 0xb2, 0x8c, 0xb2, 0x8c, 0xa3, 0x41, 0x5b, 0xa9,
+ 0x29, 0xcd, 0x9c, 0x89, 0x07, 0x95, 0xa9, 0x91,
+ 0xad, 0x94, 0x9a, 0x96, 0x8b, 0xb4, 0xb8, 0x09,
+ 0x80, 0x8c, 0xac, 0x9f, 0x98, 0x99, 0xa3, 0x9c,
+ 0x01, 0x07, 0xa2, 0x10, 0x8b, 0xaf, 0x8d, 0x83,
+ 0x94, 0x00, 0x80, 0xa2, 0x91, 0x80, 0x98, 0x92,
+ 0x81, 0xbe, 0x30, 0x00, 0x18, 0x8e, 0x80, 0x89,
+ 0x86, 0xae, 0xa5, 0x39, 0x09, 0x95, 0x06, 0x01,
+ 0x04, 0x10, 0x91, 0x80, 0x8b, 0x84, 0x40, 0x9d,
+ 0xb4, 0x91, 0x83, 0x93, 0x82, 0x9d, 0xaf, 0x93,
+ 0x08, 0x80, 0x40, 0xb7, 0xae, 0xa8, 0x83, 0xa3,
+ 0xaf, 0x93, 0x80, 0xba, 0xaa, 0x8c, 0x80, 0xc6,
+ 0x9a, 0xa4, 0x86, 0x40, 0xb8, 0xab, 0xf3, 0xbf,
+ 0x9e, 0x39, 0x01, 0x38, 0x08, 0x97, 0x8e, 0x00,
+ 0x80, 0xdd, 0x39, 0xa6, 0x8f, 0x00, 0x80, 0x9b,
+ 0x80, 0x89, 0xa7, 0x30, 0x94, 0x80, 0x8a, 0xad,
+ 0x92, 0x80, 0x91, 0xc8, 0x41, 0x06, 0x88, 0x80,
+ 0xa4, 0x90, 0x80, 0xb0, 0x9d, 0xef, 0x30, 0x08,
+ 0xa5, 0x94, 0x80, 0x98, 0x28, 0x08, 0x9f, 0x8d,
+ 0x80, 0x41, 0x46, 0x92, 0x8e, 0x00, 0x8c, 0x80,
+ 0xa1, 0xfb, 0x80, 0xce, 0x43, 0x99, 0xe5, 0xee,
+ 0x90, 0x40, 0xc3, 0x4a, 0x4b, 0xe0, 0x8e, 0x44,
+ 0x2f, 0x90, 0x85, 0x4f, 0xb8, 0x42, 0x46, 0x60,
+ 0x21, 0xb8, 0x42, 0x38, 0x86, 0x9e, 0x90, 0xce,
+ 0x90, 0x9d, 0x91, 0xaf, 0x8f, 0x83, 0x9e, 0x94,
+ 0x84, 0x92, 0x42, 0xaf, 0xbf, 0xff, 0xca, 0x20,
+ 0xc1, 0x8c, 0xbf, 0x08, 0x80, 0x9b, 0x57, 0xf7,
+ 0x87, 0x44, 0xd5, 0xa9, 0x88, 0x60, 0x22, 0xe6,
+ 0x18, 0x30, 0x08, 0x41, 0x22, 0x8e, 0x80, 0x9c,
+ 0x11, 0x80, 0x8d, 0x1f, 0x41, 0x8b, 0x49, 0x03,
+ 0xea, 0x84, 0x8c, 0x82, 0x88, 0x86, 0x89, 0x57,
+ 0x65, 0xd4, 0x80, 0xc6, 0x01, 0x08, 0x09, 0x0b,
+ 0x80, 0x8b, 0x00, 0x06, 0x80, 0xc0, 0x03, 0x0f,
+ 0x06, 0x80, 0x9b, 0x03, 0x04, 0x00, 0x16, 0x80,
+ 0x41, 0x53, 0x81, 0x98, 0x80, 0x98, 0x80, 0x9e,
+ 0x80, 0x98, 0x80, 0x9e, 0x80, 0x98, 0x80, 0x9e,
+ 0x80, 0x98, 0x80, 0x9e, 0x80, 0x98, 0x07, 0x47,
+ 0x33, 0x9e, 0x2d, 0x41, 0x04, 0xbd, 0x40, 0x91,
+ 0xac, 0x89, 0x86, 0x8f, 0x80, 0x41, 0x40, 0x9d,
+ 0x91, 0xab, 0x41, 0xe3, 0x9b, 0x42, 0xf3, 0x30,
+ 0x18, 0x08, 0x8e, 0x80, 0x40, 0xc4, 0xba, 0xc3,
+ 0x30, 0x44, 0xb3, 0x18, 0x9a, 0x01, 0x00, 0x08,
+ 0x80, 0x89, 0x03, 0x00, 0x00, 0x28, 0x18, 0x00,
+ 0x00, 0x02, 0x01, 0x00, 0x08, 0x00, 0x00, 0x00,
+ 0x00, 0x01, 0x00, 0x0b, 0x06, 0x03, 0x03, 0x00,
+ 0x80, 0x89, 0x80, 0x90, 0x22, 0x04, 0x80, 0x90,
+ 0x51, 0x43, 0x60, 0xa6, 0xdf, 0x9f, 0x50, 0x39,
+ 0x85, 0x40, 0xdd, 0x81, 0x56, 0x81, 0x8d, 0x5d,
+ 0x30, 0x4c, 0x1e, 0x42, 0x1d, 0x45, 0xe1, 0x53,
+ 0x4a, 0x84, 0x50, 0x5f,
+};
+
+static const uint8_t unicode_prop_ID_Start_index[105] = {
+ 0xf6, 0x03, 0x20, // 003F6 at 33
+ 0xa6, 0x07, 0x00, // 007A6 at 64
+ 0xa9, 0x09, 0x20, // 009A9 at 97
+ 0xb1, 0x0a, 0x00, // 00AB1 at 128
+ 0xba, 0x0b, 0x20, // 00BBA at 161
+ 0x3b, 0x0d, 0x20, // 00D3B at 193
+ 0xc7, 0x0e, 0x20, // 00EC7 at 225
+ 0x49, 0x12, 0x00, // 01249 at 256
+ 0x9b, 0x16, 0x00, // 0169B at 288
+ 0xac, 0x19, 0x00, // 019AC at 320
+ 0xc0, 0x1d, 0x80, // 01DC0 at 356
+ 0x80, 0x20, 0x20, // 02080 at 385
+ 0x70, 0x2d, 0x00, // 02D70 at 416
+ 0x00, 0x32, 0x00, // 03200 at 448
+ 0xda, 0xa7, 0x00, // 0A7DA at 480
+ 0x4c, 0xaa, 0x20, // 0AA4C at 513
+ 0xc7, 0xd7, 0x20, // 0D7C7 at 545
+ 0xfc, 0xfd, 0x20, // 0FDFC at 577
+ 0x9d, 0x02, 0x21, // 1029D at 609
+ 0x96, 0x05, 0x01, // 10596 at 640
+ 0xf3, 0x08, 0x01, // 108F3 at 672
+ 0xb3, 0x0c, 0x21, // 10CB3 at 705
+ 0x73, 0x11, 0x61, // 11173 at 739
+ 0x34, 0x13, 0x01, // 11334 at 768
+ 0x1b, 0x17, 0x21, // 1171B at 801
+ 0x8a, 0x1a, 0x01, // 11A8A at 832
+ 0x34, 0x1f, 0x21, // 11F34 at 865
+ 0xbf, 0x6a, 0x01, // 16ABF at 896
+ 0x23, 0xb1, 0xa1, // 1B123 at 933
+ 0xad, 0xd4, 0x01, // 1D4AD at 960
+ 0x6f, 0xd7, 0x01, // 1D76F at 992
+ 0xff, 0xe7, 0x61, // 1E7FF at 1027
+ 0x5e, 0xee, 0x01, // 1EE5E at 1056
+ 0xe1, 0xeb, 0x22, // 2EBE1 at 1089
+ 0xb0, 0x23, 0x03, // 323B0 at 1120 (upper bound)
+};
+
+static const uint8_t unicode_prop_ID_Continue1_table[660] = {
+ 0xaf, 0x89, 0xa4, 0x80, 0xd6, 0x80, 0x42, 0x47,
+ 0xef, 0x96, 0x80, 0x40, 0xfa, 0x84, 0x41, 0x08,
+ 0xac, 0x00, 0x01, 0x01, 0x00, 0xc7, 0x8a, 0xaf,
+ 0x9e, 0x28, 0xe4, 0x31, 0x29, 0x08, 0x19, 0x89,
+ 0x96, 0x80, 0x9d, 0x9a, 0xda, 0x8a, 0x8e, 0x89,
+ 0xa0, 0x88, 0x88, 0x80, 0x97, 0x18, 0x88, 0x02,
+ 0x04, 0xaa, 0x82, 0xbb, 0x87, 0xa9, 0x97, 0x80,
+ 0xa0, 0xb5, 0x10, 0x91, 0x06, 0x89, 0x09, 0x89,
+ 0x90, 0x82, 0xb7, 0x00, 0x31, 0x09, 0x82, 0x88,
+ 0x80, 0x89, 0x09, 0x89, 0x8d, 0x01, 0x82, 0xb7,
+ 0x00, 0x23, 0x09, 0x12, 0x80, 0x93, 0x8b, 0x10,
+ 0x8a, 0x82, 0xb7, 0x00, 0x38, 0x10, 0x82, 0x93,
+ 0x09, 0x89, 0x89, 0x28, 0x82, 0xb7, 0x00, 0x31,
+ 0x09, 0x16, 0x82, 0x89, 0x09, 0x89, 0x91, 0x80,
+ 0xba, 0x22, 0x10, 0x83, 0x88, 0x80, 0x8d, 0x89,
+ 0x8f, 0x84, 0xb6, 0x00, 0x30, 0x10, 0x1e, 0x81,
+ 0x8a, 0x09, 0x89, 0x90, 0x82, 0xb7, 0x00, 0x30,
+ 0x10, 0x1e, 0x81, 0x8a, 0x09, 0x89, 0x10, 0x8b,
+ 0x83, 0xb6, 0x08, 0x30, 0x10, 0x83, 0x88, 0x80,
+ 0x89, 0x09, 0x89, 0x90, 0x82, 0xc5, 0x03, 0x28,
+ 0x00, 0x3d, 0x89, 0x09, 0xbc, 0x01, 0x86, 0x8b,
+ 0x38, 0x89, 0xd6, 0x01, 0x88, 0x8a, 0x30, 0x89,
+ 0xbd, 0x0d, 0x89, 0x8a, 0x00, 0x00, 0x03, 0x81,
+ 0xb0, 0x93, 0x01, 0x84, 0x8a, 0x80, 0xa3, 0x88,
+ 0x80, 0xe3, 0x93, 0x80, 0x89, 0x8b, 0x1b, 0x10,
+ 0x11, 0x32, 0x83, 0x8c, 0x8b, 0x80, 0x8e, 0x42,
+ 0xbe, 0x82, 0x88, 0x88, 0x43, 0x9f, 0x83, 0x9b,
+ 0x82, 0x9c, 0x81, 0x9d, 0x81, 0xbf, 0x9f, 0x88,
+ 0x01, 0x89, 0xa0, 0x10, 0x8a, 0x40, 0x8e, 0x80,
+ 0xf5, 0x8b, 0x83, 0x8b, 0x89, 0x89, 0xff, 0x8a,
+ 0xbb, 0x84, 0xb8, 0x89, 0x80, 0x9c, 0x81, 0x8a,
+ 0x85, 0x89, 0x95, 0x8d, 0x80, 0x8f, 0xb0, 0x84,
+ 0xae, 0x90, 0x8a, 0x89, 0x90, 0x88, 0x8b, 0x82,
+ 0x9d, 0x8c, 0x81, 0x89, 0xab, 0x8d, 0xaf, 0x93,
+ 0x87, 0x89, 0x85, 0x89, 0xf5, 0x10, 0x94, 0x18,
+ 0x28, 0x0a, 0x40, 0xc5, 0xbf, 0x42, 0x3e, 0x81,
+ 0x92, 0x80, 0xfa, 0x8c, 0x18, 0x82, 0x8b, 0x4b,
+ 0xfd, 0x82, 0x40, 0x8c, 0x80, 0xdf, 0x9f, 0x42,
+ 0x29, 0x85, 0xe8, 0x81, 0x60, 0x75, 0x84, 0x89,
+ 0xc4, 0x03, 0x89, 0x9f, 0x81, 0xcf, 0x81, 0x41,
+ 0x0f, 0x02, 0x03, 0x80, 0x96, 0x23, 0x80, 0xd2,
+ 0x81, 0xb1, 0x91, 0x89, 0x89, 0x85, 0x91, 0x8c,
+ 0x8a, 0x9b, 0x87, 0x98, 0x8c, 0xab, 0x83, 0xae,
+ 0x8d, 0x8e, 0x89, 0x8a, 0x80, 0x89, 0x89, 0xae,
+ 0x8d, 0x8b, 0x07, 0x09, 0x89, 0xa0, 0x82, 0xb1,
+ 0x00, 0x11, 0x0c, 0x08, 0x80, 0xa8, 0x24, 0x81,
+ 0x40, 0xeb, 0x38, 0x09, 0x89, 0x60, 0x4f, 0x23,
+ 0x80, 0x42, 0xe0, 0x8f, 0x8f, 0x8f, 0x11, 0x97,
+ 0x82, 0x40, 0xbf, 0x89, 0xa4, 0x80, 0x42, 0xbc,
+ 0x80, 0x40, 0xe1, 0x80, 0x40, 0x94, 0x84, 0x41,
+ 0x24, 0x89, 0x45, 0x56, 0x10, 0x0c, 0x83, 0xa7,
+ 0x13, 0x80, 0x40, 0xa4, 0x81, 0x42, 0x3c, 0x1f,
+ 0x89, 0x41, 0x70, 0x81, 0xcf, 0x82, 0xc5, 0x8a,
+ 0xb0, 0x83, 0xf9, 0x82, 0xb4, 0x8e, 0x9e, 0x8a,
+ 0x09, 0x89, 0x83, 0xac, 0x8a, 0x30, 0xac, 0x89,
+ 0x2a, 0xa3, 0x8d, 0x80, 0x89, 0x21, 0xab, 0x80,
+ 0x8b, 0x82, 0xaf, 0x8d, 0x3b, 0x80, 0x8b, 0xd1,
+ 0x8b, 0x28, 0x08, 0x40, 0x9c, 0x8b, 0x84, 0x89,
+ 0x2b, 0xb6, 0x08, 0x31, 0x09, 0x82, 0x88, 0x80,
+ 0x89, 0x09, 0x32, 0x84, 0x40, 0xbf, 0x91, 0x88,
+ 0x89, 0x18, 0xd0, 0x93, 0x8b, 0x89, 0x40, 0xd4,
+ 0x31, 0x88, 0x9a, 0x81, 0xd1, 0x90, 0x8e, 0x89,
+ 0xd0, 0x8c, 0x87, 0x89, 0xd2, 0x8e, 0x83, 0x89,
+ 0x40, 0xf1, 0x8e, 0x40, 0xa4, 0x89, 0xc5, 0x28,
+ 0x09, 0x18, 0x00, 0x81, 0x8b, 0x89, 0xf6, 0x31,
+ 0x32, 0x80, 0x9b, 0x89, 0xa7, 0x30, 0x1f, 0x80,
+ 0x88, 0x8a, 0xad, 0x8f, 0x41, 0x94, 0x38, 0x87,
+ 0x8f, 0x89, 0xb7, 0x95, 0x80, 0x8d, 0xf9, 0x2a,
+ 0x00, 0x08, 0x30, 0x07, 0x89, 0xaf, 0x20, 0x08,
+ 0x27, 0x89, 0x41, 0x48, 0x83, 0x88, 0x08, 0x80,
+ 0xaf, 0x32, 0x84, 0x8c, 0x89, 0x54, 0xe5, 0x05,
+ 0x8e, 0x60, 0x36, 0x09, 0x89, 0xd5, 0x89, 0xa5,
+ 0x84, 0xba, 0x86, 0x98, 0x89, 0x43, 0xf4, 0x00,
+ 0xb6, 0x33, 0xd0, 0x80, 0x8a, 0x81, 0x60, 0x4c,
+ 0xaa, 0x81, 0x52, 0x60, 0xad, 0x81, 0x96, 0x42,
+ 0x1d, 0x22, 0x2f, 0x39, 0x86, 0x9d, 0x83, 0x40,
+ 0x93, 0x82, 0x45, 0x88, 0xb1, 0x41, 0xff, 0xb6,
+ 0x83, 0xb1, 0x38, 0x8d, 0x80, 0x95, 0x20, 0x8e,
+ 0x45, 0x4f, 0x30, 0x90, 0x0e, 0x01, 0x04, 0xe3,
+ 0x80, 0x40, 0x9f, 0x86, 0x88, 0x89, 0x41, 0x63,
+ 0x80, 0xbc, 0x8d, 0x41, 0xf1, 0x8d, 0x43, 0xd5,
+ 0x86, 0xec, 0x34, 0x89, 0x52, 0x95, 0x89, 0x6c,
+ 0x05, 0x05, 0x40, 0xef,
+};
+
+static const uint8_t unicode_prop_ID_Continue1_index[63] = {
+ 0xfa, 0x06, 0x00, // 006FA at 32
+ 0x70, 0x09, 0x00, // 00970 at 64
+ 0xf0, 0x0a, 0x40, // 00AF0 at 98
+ 0x57, 0x0c, 0x00, // 00C57 at 128
+ 0xf0, 0x0d, 0x60, // 00DF0 at 163
+ 0xc7, 0x0f, 0x20, // 00FC7 at 193
+ 0xea, 0x17, 0x40, // 017EA at 226
+ 0x05, 0x1b, 0x00, // 01B05 at 256
+ 0x41, 0x20, 0x00, // 02041 at 288
+ 0x0c, 0xa8, 0x80, // 0A80C at 324
+ 0x37, 0xaa, 0x20, // 0AA37 at 353
+ 0x50, 0xfe, 0x20, // 0FE50 at 385
+ 0x3a, 0x0d, 0x21, // 10D3A at 417
+ 0x74, 0x11, 0x01, // 11174 at 448
+ 0x5a, 0x14, 0x21, // 1145A at 481
+ 0x44, 0x19, 0x81, // 11944 at 516
+ 0x5a, 0x1d, 0xa1, // 11D5A at 549
+ 0xf5, 0x6a, 0x21, // 16AF5 at 577
+ 0x45, 0xd2, 0x41, // 1D245 at 610
+ 0xaf, 0xe2, 0x21, // 1E2AF at 641
+ 0xf0, 0x01, 0x0e, // E01F0 at 672 (upper bound)
+};
+
+#ifdef CONFIG_ALL_UNICODE
+
+static const uint8_t unicode_cc_table[899] = {
+ 0xb2, 0xcf, 0xd4, 0x00, 0xe8, 0x03, 0xdc, 0x00,
+ 0xe8, 0x00, 0xd8, 0x04, 0xdc, 0x01, 0xca, 0x03,
+ 0xdc, 0x01, 0xca, 0x0a, 0xdc, 0x04, 0x01, 0x03,
+ 0xdc, 0xc7, 0x00, 0xf0, 0xc0, 0x02, 0xdc, 0xc2,
+ 0x01, 0xdc, 0x80, 0xc2, 0x03, 0xdc, 0xc0, 0x00,
+ 0xe8, 0x01, 0xdc, 0xc0, 0x41, 0xe9, 0x00, 0xea,
+ 0x41, 0xe9, 0x00, 0xea, 0x00, 0xe9, 0xcc, 0xb0,
+ 0xe2, 0xc4, 0xb0, 0xd8, 0x00, 0xdc, 0xc3, 0x00,
+ 0xdc, 0xc2, 0x00, 0xde, 0x00, 0xdc, 0xc5, 0x05,
+ 0xdc, 0xc1, 0x00, 0xdc, 0xc1, 0x00, 0xde, 0x00,
+ 0xe4, 0xc0, 0x49, 0x0a, 0x43, 0x13, 0x80, 0x00,
+ 0x17, 0x80, 0x41, 0x18, 0x80, 0xc0, 0x00, 0xdc,
+ 0x80, 0x00, 0x12, 0xb0, 0x17, 0xc7, 0x42, 0x1e,
+ 0xaf, 0x47, 0x1b, 0xc1, 0x01, 0xdc, 0xc4, 0x00,
+ 0xdc, 0xc1, 0x00, 0xdc, 0x8f, 0x00, 0x23, 0xb0,
+ 0x34, 0xc6, 0x81, 0xc3, 0x00, 0xdc, 0xc0, 0x81,
+ 0xc1, 0x80, 0x00, 0xdc, 0xc1, 0x00, 0xdc, 0xa2,
+ 0x00, 0x24, 0x9d, 0xc0, 0x00, 0xdc, 0xc1, 0x00,
+ 0xdc, 0xc1, 0x02, 0xdc, 0xc0, 0x01, 0xdc, 0xc0,
+ 0x00, 0xdc, 0xc2, 0x00, 0xdc, 0xc0, 0x00, 0xdc,
+ 0xc0, 0x00, 0xdc, 0xc0, 0x00, 0xdc, 0xc1, 0xb0,
+ 0x6f, 0xc6, 0x00, 0xdc, 0xc0, 0x88, 0x00, 0xdc,
+ 0x97, 0xc3, 0x80, 0xc8, 0x80, 0xc2, 0x80, 0xc4,
+ 0xaa, 0x02, 0xdc, 0xb0, 0x0b, 0xc0, 0x02, 0xdc,
+ 0xc3, 0xa9, 0xc4, 0x04, 0xdc, 0xcd, 0x80, 0x00,
+ 0xdc, 0xc1, 0x00, 0xdc, 0xc1, 0x00, 0xdc, 0xc2,
+ 0x02, 0xdc, 0x42, 0x1b, 0xc2, 0x00, 0xdc, 0xc1,
+ 0x01, 0xdc, 0xc4, 0xb0, 0x0b, 0x00, 0x07, 0x8f,
+ 0x00, 0x09, 0x82, 0xc0, 0x00, 0xdc, 0xc1, 0xb0,
+ 0x36, 0x00, 0x07, 0x8f, 0x00, 0x09, 0xaf, 0xc0,
+ 0xb0, 0x0c, 0x00, 0x07, 0x8f, 0x00, 0x09, 0xb0,
+ 0x3d, 0x00, 0x07, 0x8f, 0x00, 0x09, 0xb0, 0x3d,
+ 0x00, 0x07, 0x8f, 0x00, 0x09, 0xb0, 0x4e, 0x00,
+ 0x09, 0xb0, 0x3d, 0x00, 0x07, 0x8f, 0x00, 0x09,
+ 0x86, 0x00, 0x54, 0x00, 0x5b, 0xb0, 0x34, 0x00,
+ 0x07, 0x8f, 0x00, 0x09, 0xb0, 0x3c, 0x01, 0x09,
+ 0x8f, 0x00, 0x09, 0xb0, 0x4b, 0x00, 0x09, 0xb0,
+ 0x3c, 0x01, 0x67, 0x00, 0x09, 0x8c, 0x03, 0x6b,
+ 0xb0, 0x3b, 0x01, 0x76, 0x00, 0x09, 0x8c, 0x03,
+ 0x7a, 0xb0, 0x1b, 0x01, 0xdc, 0x9a, 0x00, 0xdc,
+ 0x80, 0x00, 0xdc, 0x80, 0x00, 0xd8, 0xb0, 0x06,
+ 0x41, 0x81, 0x80, 0x00, 0x84, 0x84, 0x03, 0x82,
+ 0x81, 0x00, 0x82, 0x80, 0xc1, 0x00, 0x09, 0x80,
+ 0xc1, 0xb0, 0x0d, 0x00, 0xdc, 0xb0, 0x3f, 0x00,
+ 0x07, 0x80, 0x01, 0x09, 0xb0, 0x21, 0x00, 0xdc,
+ 0xb2, 0x9e, 0xc2, 0xb3, 0x83, 0x01, 0x09, 0x9d,
+ 0x00, 0x09, 0xb0, 0x6c, 0x00, 0x09, 0x89, 0xc0,
+ 0xb0, 0x9a, 0x00, 0xe4, 0xb0, 0x5e, 0x00, 0xde,
+ 0xc0, 0x00, 0xdc, 0xb0, 0xaa, 0xc0, 0x00, 0xdc,
+ 0xb0, 0x16, 0x00, 0x09, 0x93, 0xc7, 0x81, 0x00,
+ 0xdc, 0xaf, 0xc4, 0x05, 0xdc, 0xc1, 0x00, 0xdc,
+ 0x80, 0x01, 0xdc, 0xc1, 0x01, 0xdc, 0xc4, 0x00,
+ 0xdc, 0xc3, 0xb0, 0x34, 0x00, 0x07, 0x8e, 0x00,
+ 0x09, 0xa5, 0xc0, 0x00, 0xdc, 0xc6, 0xb0, 0x05,
+ 0x01, 0x09, 0xb0, 0x09, 0x00, 0x07, 0x8a, 0x01,
+ 0x09, 0xb0, 0x12, 0x00, 0x07, 0xb0, 0x67, 0xc2,
+ 0x41, 0x00, 0x04, 0xdc, 0xc1, 0x03, 0xdc, 0xc0,
+ 0x41, 0x00, 0x05, 0x01, 0x83, 0x00, 0xdc, 0x85,
+ 0xc0, 0x82, 0xc1, 0xb0, 0x95, 0xc1, 0x00, 0xdc,
+ 0xc6, 0x00, 0xdc, 0xc1, 0x00, 0xea, 0x00, 0xd6,
+ 0x00, 0xdc, 0x00, 0xca, 0xe4, 0x00, 0xe8, 0x01,
+ 0xe4, 0x00, 0xdc, 0x00, 0xda, 0xc0, 0x00, 0xe9,
+ 0x00, 0xdc, 0xc0, 0x00, 0xdc, 0xb2, 0x9f, 0xc1,
+ 0x01, 0x01, 0xc3, 0x02, 0x01, 0xc1, 0x83, 0xc0,
+ 0x82, 0x01, 0x01, 0xc0, 0x00, 0xdc, 0xc0, 0x01,
+ 0x01, 0x03, 0xdc, 0xc0, 0xb8, 0x03, 0xcd, 0xc2,
+ 0xb0, 0x5c, 0x00, 0x09, 0xb0, 0x2f, 0xdf, 0xb1,
+ 0xf9, 0x00, 0xda, 0x00, 0xe4, 0x00, 0xe8, 0x00,
+ 0xde, 0x01, 0xe0, 0xb0, 0x38, 0x01, 0x08, 0xb8,
+ 0x6d, 0xa3, 0xc0, 0x83, 0xc9, 0x9f, 0xc1, 0xb0,
+ 0x1f, 0xc1, 0xb0, 0xe3, 0x00, 0x09, 0xa4, 0x00,
+ 0x09, 0xb0, 0x66, 0x00, 0x09, 0x9a, 0xd1, 0xb0,
+ 0x08, 0x02, 0xdc, 0xa4, 0x00, 0x09, 0xb0, 0x2e,
+ 0x00, 0x07, 0x8b, 0x00, 0x09, 0xb0, 0xbe, 0xc0,
+ 0x80, 0xc1, 0x00, 0xdc, 0x81, 0xc1, 0x84, 0xc1,
+ 0x80, 0xc0, 0xb0, 0x03, 0x00, 0x09, 0xb0, 0xc5,
+ 0x00, 0x09, 0xb8, 0x46, 0xff, 0x00, 0x1a, 0xb2,
+ 0xd0, 0xc6, 0x06, 0xdc, 0xc1, 0xb3, 0x9c, 0x00,
+ 0xdc, 0xb0, 0xb1, 0x00, 0xdc, 0xb0, 0x64, 0xc4,
+ 0xb6, 0x61, 0x00, 0xdc, 0x80, 0xc0, 0xa7, 0xc0,
+ 0x00, 0x01, 0x00, 0xdc, 0x83, 0x00, 0x09, 0xb0,
+ 0x74, 0xc0, 0x00, 0xdc, 0xb2, 0x0c, 0xc3, 0xb1,
+ 0x52, 0xc1, 0xb0, 0x1f, 0x02, 0xdc, 0xb0, 0x15,
+ 0x01, 0xdc, 0xc2, 0x00, 0xdc, 0xc0, 0x03, 0xdc,
+ 0xb0, 0x00, 0xc0, 0x00, 0xdc, 0xc0, 0x00, 0xdc,
+ 0xb0, 0x8f, 0x00, 0x09, 0xa8, 0x00, 0x09, 0x8d,
+ 0x00, 0x09, 0xb0, 0x08, 0x00, 0x09, 0x00, 0x07,
+ 0xb0, 0x14, 0xc2, 0xaf, 0x01, 0x09, 0xb0, 0x0d,
+ 0x00, 0x07, 0xb0, 0x1b, 0x00, 0x09, 0x88, 0x00,
+ 0x07, 0xb0, 0x39, 0x00, 0x09, 0x00, 0x07, 0xb0,
+ 0x81, 0x00, 0x07, 0x00, 0x09, 0xb0, 0x1f, 0x01,
+ 0x07, 0x8f, 0x00, 0x09, 0x97, 0xc6, 0x82, 0xc4,
+ 0xb0, 0x9c, 0x00, 0x09, 0x82, 0x00, 0x07, 0x96,
+ 0xc0, 0xb0, 0x32, 0x00, 0x09, 0x00, 0x07, 0xb0,
+ 0xca, 0x00, 0x09, 0x00, 0x07, 0xb0, 0x4d, 0x00,
+ 0x09, 0xb0, 0x45, 0x00, 0x09, 0x00, 0x07, 0xb0,
+ 0x42, 0x00, 0x09, 0xb0, 0xdc, 0x00, 0x09, 0x00,
+ 0x07, 0xb0, 0xd1, 0x01, 0x09, 0x83, 0x00, 0x07,
+ 0xb0, 0x6b, 0x00, 0x09, 0xb0, 0x22, 0x00, 0x09,
+ 0x91, 0x00, 0x09, 0xb0, 0x20, 0x00, 0x09, 0xb1,
+ 0x74, 0x00, 0x09, 0xb0, 0xd1, 0x00, 0x07, 0x80,
+ 0x01, 0x09, 0xb0, 0x20, 0x00, 0x09, 0xb1, 0x78,
+ 0x01, 0x09, 0xb8, 0x43, 0x7c, 0x04, 0x01, 0xb0,
+ 0x0a, 0xc6, 0xb4, 0x88, 0x01, 0x06, 0xb8, 0x44,
+ 0x7b, 0x00, 0x01, 0xb8, 0x0c, 0x95, 0x01, 0xd8,
+ 0x02, 0x01, 0x82, 0x00, 0xe2, 0x04, 0xd8, 0x87,
+ 0x07, 0xdc, 0x81, 0xc4, 0x01, 0xdc, 0x9d, 0xc3,
+ 0xb0, 0x63, 0xc2, 0xb8, 0x05, 0x8a, 0xc6, 0x80,
+ 0xd0, 0x81, 0xc6, 0x80, 0xc1, 0x80, 0xc4, 0xb0,
+ 0x33, 0xc0, 0xb0, 0x6f, 0xc6, 0xb1, 0x46, 0xc0,
+ 0xb0, 0x0c, 0xc3, 0xb1, 0xcb, 0x01, 0xe8, 0x00,
+ 0xdc, 0xc0, 0xb3, 0xaf, 0x06, 0xdc, 0xb0, 0x3c,
+ 0xc5, 0x00, 0x07,
+};
+
+static const uint8_t unicode_cc_index[87] = {
+ 0x4d, 0x03, 0x00, // 0034D at 32
+ 0x97, 0x05, 0x20, // 00597 at 65
+ 0xc6, 0x05, 0x00, // 005C6 at 96
+ 0xe7, 0x06, 0x00, // 006E7 at 128
+ 0x45, 0x07, 0x00, // 00745 at 160
+ 0x9c, 0x08, 0x00, // 0089C at 192
+ 0x4d, 0x09, 0x00, // 0094D at 224
+ 0x3c, 0x0b, 0x00, // 00B3C at 256
+ 0x3d, 0x0d, 0x00, // 00D3D at 288
+ 0x36, 0x0f, 0x00, // 00F36 at 320
+ 0x38, 0x10, 0x20, // 01038 at 353
+ 0x3a, 0x19, 0x00, // 0193A at 384
+ 0xcb, 0x1a, 0x20, // 01ACB at 417
+ 0xd3, 0x1c, 0x00, // 01CD3 at 448
+ 0xcf, 0x1d, 0x00, // 01DCF at 480
+ 0xe2, 0x20, 0x00, // 020E2 at 512
+ 0x2e, 0x30, 0x20, // 0302E at 545
+ 0x2b, 0xa9, 0x20, // 0A92B at 577
+ 0xed, 0xab, 0x00, // 0ABED at 608
+ 0x39, 0x0a, 0x01, // 10A39 at 640
+ 0x51, 0x0f, 0x01, // 10F51 at 672
+ 0x73, 0x11, 0x01, // 11173 at 704
+ 0x75, 0x13, 0x01, // 11375 at 736
+ 0x2b, 0x17, 0x21, // 1172B at 769
+ 0x3f, 0x1c, 0x21, // 11C3F at 801
+ 0x9e, 0xbc, 0x21, // 1BC9E at 833
+ 0x08, 0xe0, 0x01, // 1E008 at 864
+ 0x44, 0xe9, 0x01, // 1E944 at 896
+ 0x4b, 0xe9, 0x01, // 1E94B at 928 (upper bound)
+};
+
+static const uint32_t unicode_decomp_table1[699] = {
+ 0x00280081, 0x002a0097, 0x002a8081, 0x002bc097,
+ 0x002c8115, 0x002d0097, 0x002d4081, 0x002e0097,
+ 0x002e4115, 0x002f0199, 0x00302016, 0x00400842,
+ 0x00448a42, 0x004a0442, 0x004c0096, 0x004c8117,
+ 0x004d0242, 0x004e4342, 0x004fc12f, 0x0050c342,
+ 0x005240bf, 0x00530342, 0x00550942, 0x005a0842,
+ 0x005e0096, 0x005e4342, 0x005fc081, 0x00680142,
+ 0x006bc142, 0x00710185, 0x0071c317, 0x00734844,
+ 0x00778344, 0x00798342, 0x007b02be, 0x007c4197,
+ 0x007d0142, 0x007e0444, 0x00800e42, 0x00878142,
+ 0x00898744, 0x00ac0483, 0x00b60317, 0x00b80283,
+ 0x00d00214, 0x00d10096, 0x00dd0080, 0x00de8097,
+ 0x00df8080, 0x00e10097, 0x00e1413e, 0x00e1c080,
+ 0x00e204be, 0x00ea83ae, 0x00f282ae, 0x00f401ad,
+ 0x00f4c12e, 0x00f54103, 0x00fc0303, 0x00fe4081,
+ 0x0100023e, 0x0101c0be, 0x010301be, 0x010640be,
+ 0x010e40be, 0x0114023e, 0x0115c0be, 0x011701be,
+ 0x011d8144, 0x01304144, 0x01340244, 0x01358144,
+ 0x01368344, 0x01388344, 0x013a8644, 0x013e0144,
+ 0x0161c085, 0x018882ae, 0x019d422f, 0x01b00184,
+ 0x01b4c084, 0x024a4084, 0x024c4084, 0x024d0084,
+ 0x0256042e, 0x0272c12e, 0x02770120, 0x0277c084,
+ 0x028cc084, 0x028d8084, 0x029641ae, 0x02978084,
+ 0x02d20084, 0x02d2c12e, 0x02d70120, 0x02e50084,
+ 0x02f281ae, 0x03120084, 0x03300084, 0x0331c122,
+ 0x0332812e, 0x035281ae, 0x03768084, 0x037701ae,
+ 0x038cc085, 0x03acc085, 0x03b7012f, 0x03c30081,
+ 0x03d0c084, 0x03d34084, 0x03d48084, 0x03d5c084,
+ 0x03d70084, 0x03da4084, 0x03dcc084, 0x03dd412e,
+ 0x03ddc085, 0x03de0084, 0x03de4085, 0x03e04084,
+ 0x03e4c084, 0x03e74084, 0x03e88084, 0x03e9c084,
+ 0x03eb0084, 0x03ee4084, 0x04098084, 0x043f0081,
+ 0x06c18484, 0x06c48084, 0x06cec184, 0x06d00120,
+ 0x06d0c084, 0x074b0383, 0x074cc41f, 0x074f1783,
+ 0x075e0081, 0x0766d283, 0x07801d44, 0x078e8942,
+ 0x07931844, 0x079f0d42, 0x07a58216, 0x07a68085,
+ 0x07a6c0be, 0x07a80d44, 0x07aea044, 0x07c00122,
+ 0x07c08344, 0x07c20122, 0x07c28344, 0x07c40122,
+ 0x07c48244, 0x07c60122, 0x07c68244, 0x07c8113e,
+ 0x07d08244, 0x07d20122, 0x07d28244, 0x07d40122,
+ 0x07d48344, 0x07d64c3e, 0x07dc4080, 0x07dc80be,
+ 0x07dcc080, 0x07dd00be, 0x07dd4080, 0x07dd80be,
+ 0x07ddc080, 0x07de00be, 0x07de4080, 0x07de80be,
+ 0x07dec080, 0x07df00be, 0x07df4080, 0x07e00820,
+ 0x07e40820, 0x07e80820, 0x07ec05be, 0x07eec080,
+ 0x07ef00be, 0x07ef4097, 0x07ef8080, 0x07efc117,
+ 0x07f0443e, 0x07f24080, 0x07f280be, 0x07f2c080,
+ 0x07f303be, 0x07f4c080, 0x07f582ae, 0x07f6c080,
+ 0x07f7433e, 0x07f8c080, 0x07f903ae, 0x07fac080,
+ 0x07fb013e, 0x07fb8102, 0x07fc83be, 0x07fe4080,
+ 0x07fe80be, 0x07fec080, 0x07ff00be, 0x07ff4080,
+ 0x07ff8097, 0x0800011e, 0x08008495, 0x08044081,
+ 0x0805c097, 0x08090081, 0x08094097, 0x08098099,
+ 0x080bc081, 0x080cc085, 0x080d00b1, 0x080d8085,
+ 0x080dc0b1, 0x080f0197, 0x0811c197, 0x0815c0b3,
+ 0x0817c081, 0x081c0595, 0x081ec081, 0x081f0215,
+ 0x0820051f, 0x08228583, 0x08254415, 0x082a0097,
+ 0x08400119, 0x08408081, 0x0840c0bf, 0x08414119,
+ 0x0841c081, 0x084240bf, 0x0842852d, 0x08454081,
+ 0x08458097, 0x08464295, 0x08480097, 0x08484099,
+ 0x08488097, 0x08490081, 0x08498080, 0x084a0081,
+ 0x084a8102, 0x084b0495, 0x084d421f, 0x084e4081,
+ 0x084ec099, 0x084f0283, 0x08514295, 0x08540119,
+ 0x0854809b, 0x0854c619, 0x0857c097, 0x08580081,
+ 0x08584097, 0x08588099, 0x0858c097, 0x08590081,
+ 0x08594097, 0x08598099, 0x0859c09b, 0x085a0097,
+ 0x085a4081, 0x085a8097, 0x085ac099, 0x085b0295,
+ 0x085c4097, 0x085c8099, 0x085cc097, 0x085d0081,
+ 0x085d4097, 0x085d8099, 0x085dc09b, 0x085e0097,
+ 0x085e4081, 0x085e8097, 0x085ec099, 0x085f0215,
+ 0x08624099, 0x0866813e, 0x086b80be, 0x087341be,
+ 0x088100be, 0x088240be, 0x088300be, 0x088901be,
+ 0x088b0085, 0x088b40b1, 0x088bc085, 0x088c00b1,
+ 0x089040be, 0x089100be, 0x0891c1be, 0x089801be,
+ 0x089b42be, 0x089d0144, 0x089e0144, 0x08a00144,
+ 0x08a10144, 0x08a20144, 0x08ab023e, 0x08b80244,
+ 0x08ba8220, 0x08ca411e, 0x0918049f, 0x091a4523,
+ 0x091cc097, 0x091d04a5, 0x091f452b, 0x0921c09b,
+ 0x092204a1, 0x09244525, 0x0926c099, 0x09270d25,
+ 0x092d8d1f, 0x09340d1f, 0x093a8081, 0x0a8300b3,
+ 0x0a9d0099, 0x0a9d4097, 0x0a9d8099, 0x0ab700be,
+ 0x0b1f0115, 0x0b5bc081, 0x0ba7c081, 0x0bbcc081,
+ 0x0bc004ad, 0x0bc244ad, 0x0bc484ad, 0x0bc6f383,
+ 0x0be0852d, 0x0be31d03, 0x0bf1882d, 0x0c000081,
+ 0x0c0d8283, 0x0c130b84, 0x0c194284, 0x0c1c0122,
+ 0x0c1cc122, 0x0c1d8122, 0x0c1e4122, 0x0c1f0122,
+ 0x0c250084, 0x0c26c123, 0x0c278084, 0x0c27c085,
+ 0x0c2b0b84, 0x0c314284, 0x0c340122, 0x0c34c122,
+ 0x0c358122, 0x0c364122, 0x0c370122, 0x0c3d0084,
+ 0x0c3dc220, 0x0c3f8084, 0x0c3fc085, 0x0c4c4a2d,
+ 0x0c51451f, 0x0c53ca9f, 0x0c5915ad, 0x0c648703,
+ 0x0c800741, 0x0c838089, 0x0c83c129, 0x0c8441a9,
+ 0x0c850089, 0x0c854129, 0x0c85c2a9, 0x0c870089,
+ 0x0c87408f, 0x0c87808d, 0x0c881241, 0x0c910203,
+ 0x0c940099, 0x0c9444a3, 0x0c968323, 0x0c98072d,
+ 0x0c9b84af, 0x0c9dc2a1, 0x0c9f00b5, 0x0c9f40b3,
+ 0x0c9f8085, 0x0ca01883, 0x0cac4223, 0x0cad4523,
+ 0x0cafc097, 0x0cb004a1, 0x0cb241a5, 0x0cb30097,
+ 0x0cb34099, 0x0cb38097, 0x0cb3c099, 0x0cb417ad,
+ 0x0cbfc085, 0x0cc001b3, 0x0cc0c0b1, 0x0cc100b3,
+ 0x0cc14131, 0x0cc1c0b5, 0x0cc200b3, 0x0cc241b1,
+ 0x0cc30133, 0x0cc38131, 0x0cc40085, 0x0cc440b1,
+ 0x0cc48133, 0x0cc50085, 0x0cc540b5, 0x0cc580b7,
+ 0x0cc5c0b5, 0x0cc600b1, 0x0cc64135, 0x0cc6c0b3,
+ 0x0cc701b1, 0x0cc7c0b3, 0x0cc800b5, 0x0cc840b3,
+ 0x0cc881b1, 0x0cc9422f, 0x0cca4131, 0x0ccac0b5,
+ 0x0ccb00b1, 0x0ccb40b3, 0x0ccb80b5, 0x0ccbc0b1,
+ 0x0ccc012f, 0x0ccc80b5, 0x0cccc0b3, 0x0ccd00b5,
+ 0x0ccd40b1, 0x0ccd80b5, 0x0ccdc085, 0x0cce02b1,
+ 0x0ccf40b3, 0x0ccf80b1, 0x0ccfc085, 0x0cd001b1,
+ 0x0cd0c0b3, 0x0cd101b1, 0x0cd1c0b5, 0x0cd200b3,
+ 0x0cd24085, 0x0cd280b5, 0x0cd2c085, 0x0cd30133,
+ 0x0cd381b1, 0x0cd440b3, 0x0cd48085, 0x0cd4c0b1,
+ 0x0cd500b3, 0x0cd54085, 0x0cd580b5, 0x0cd5c0b1,
+ 0x0cd60521, 0x0cd88525, 0x0cdb02a5, 0x0cdc4099,
+ 0x0cdc8117, 0x0cdd0099, 0x0cdd4197, 0x0cde0127,
+ 0x0cde8285, 0x0cdfc089, 0x0ce0043f, 0x0ce20099,
+ 0x0ce2409b, 0x0ce283bf, 0x0ce44219, 0x0ce54205,
+ 0x0ce6433f, 0x0ce7c131, 0x0ce84085, 0x0ce881b1,
+ 0x0ce94085, 0x0ce98107, 0x0cea0089, 0x0cea4097,
+ 0x0cea8219, 0x0ceb809d, 0x0cebc08d, 0x0cec083f,
+ 0x0cf00105, 0x0cf0809b, 0x0cf0c197, 0x0cf1809b,
+ 0x0cf1c099, 0x0cf20517, 0x0cf48099, 0x0cf4c117,
+ 0x0cf54119, 0x0cf5c097, 0x0cf6009b, 0x0cf64099,
+ 0x0cf68217, 0x0cf78119, 0x0cf804a1, 0x0cfa4525,
+ 0x0cfcc525, 0x0cff4125, 0x0cffc099, 0x29a70103,
+ 0x29dc0081, 0x29fc8195, 0x29fe0103, 0x2ad70203,
+ 0x2ada4081, 0x3e401482, 0x3e4a7f82, 0x3e6a3f82,
+ 0x3e8aa102, 0x3e9b0110, 0x3e9c2f82, 0x3eb3c590,
+ 0x3ec00197, 0x3ec0c119, 0x3ec1413f, 0x3ec4c2af,
+ 0x3ec74184, 0x3ec804ad, 0x3eca4081, 0x3eca8304,
+ 0x3ecc03a0, 0x3ece02a0, 0x3ecf8084, 0x3ed00120,
+ 0x3ed0c120, 0x3ed184ae, 0x3ed3c085, 0x3ed4312d,
+ 0x3ef4cbad, 0x3efa892f, 0x3eff022d, 0x3f002f2f,
+ 0x3f1782a5, 0x3f18c0b1, 0x3f1907af, 0x3f1cffaf,
+ 0x3f3c81a5, 0x3f3d64af, 0x3f542031, 0x3f649b31,
+ 0x3f7c0131, 0x3f7c83b3, 0x3f7e40b1, 0x3f7e80bd,
+ 0x3f7ec0bb, 0x3f7f00b3, 0x3f840503, 0x3f8c01ad,
+ 0x3f8cc315, 0x3f8e462d, 0x3f91cc03, 0x3f97c695,
+ 0x3f9c01af, 0x3f9d0085, 0x3f9d852f, 0x3fa03aad,
+ 0x3fbd442f, 0x3fc06f1f, 0x3fd7c11f, 0x3fd85fad,
+ 0x3fe80081, 0x3fe84f1f, 0x3ff0831f, 0x3ff2831f,
+ 0x3ff4831f, 0x3ff6819f, 0x3ff80783, 0x41e04d83,
+ 0x41e70f91, 0x44268192, 0x442ac092, 0x444b8112,
+ 0x44d2c112, 0x452ec212, 0x456e8112, 0x464e0092,
+ 0x74578392, 0x746ec312, 0x75000d1f, 0x75068d1f,
+ 0x750d0d1f, 0x7513839f, 0x7515891f, 0x751a0d1f,
+ 0x75208d1f, 0x75271015, 0x752f439f, 0x7531459f,
+ 0x75340d1f, 0x753a8d1f, 0x75410395, 0x7543441f,
+ 0x7545839f, 0x75478d1f, 0x754e0795, 0x7552839f,
+ 0x75548d1f, 0x755b0d1f, 0x75618d1f, 0x75680d1f,
+ 0x756e8d1f, 0x75750d1f, 0x757b8d1f, 0x75820d1f,
+ 0x75888d1f, 0x758f0d1f, 0x75958d1f, 0x759c0d1f,
+ 0x75a28d1f, 0x75a90103, 0x75aa089f, 0x75ae4081,
+ 0x75ae839f, 0x75b04081, 0x75b08c9f, 0x75b6c081,
+ 0x75b7032d, 0x75b8889f, 0x75bcc081, 0x75bd039f,
+ 0x75bec081, 0x75bf0c9f, 0x75c54081, 0x75c5832d,
+ 0x75c7089f, 0x75cb4081, 0x75cb839f, 0x75cd4081,
+ 0x75cd8c9f, 0x75d3c081, 0x75d4032d, 0x75d5889f,
+ 0x75d9c081, 0x75da039f, 0x75dbc081, 0x75dc0c9f,
+ 0x75e24081, 0x75e2832d, 0x75e4089f, 0x75e84081,
+ 0x75e8839f, 0x75ea4081, 0x75ea8c9f, 0x75f0c081,
+ 0x75f1042d, 0x75f3851f, 0x75f6051f, 0x75f8851f,
+ 0x75fb051f, 0x75fd851f, 0x780c049f, 0x780e419f,
+ 0x780f059f, 0x7811c203, 0x7812d0ad, 0x781b0103,
+ 0x7b80022d, 0x7b814dad, 0x7b884203, 0x7b89c081,
+ 0x7b8a452d, 0x7b8d0403, 0x7b908081, 0x7b91dc03,
+ 0x7ba0052d, 0x7ba2c8ad, 0x7ba84483, 0x7baac8ad,
+ 0x7c400097, 0x7c404521, 0x7c440d25, 0x7c4a8087,
+ 0x7c4ac115, 0x7c4b4117, 0x7c4c0d1f, 0x7c528217,
+ 0x7c538099, 0x7c53c097, 0x7c5a8197, 0x7c640097,
+ 0x7c80012f, 0x7c808081, 0x7c841603, 0x7c9004c1,
+ 0x7c940103, 0x7efc051f, 0xbe0001ac, 0xbe00d110,
+ 0xbe0947ac, 0xbe0d3910, 0xbe29872c, 0xbe2d022c,
+ 0xbe2e3790, 0xbe49ff90, 0xbe69bc10,
+};
+
+static const uint16_t unicode_decomp_table2[699] = {
+ 0x0020, 0x0000, 0x0061, 0x0002, 0x0004, 0x0006, 0x03bc, 0x0008,
+ 0x000a, 0x000c, 0x0015, 0x0095, 0x00a5, 0x00b9, 0x00c1, 0x00c3,
+ 0x00c7, 0x00cb, 0x00d1, 0x00d7, 0x00dd, 0x00e0, 0x00e6, 0x00f8,
+ 0x0108, 0x010a, 0x0073, 0x0110, 0x0112, 0x0114, 0x0120, 0x012c,
+ 0x0144, 0x014d, 0x0153, 0x0162, 0x0168, 0x016a, 0x0176, 0x0192,
+ 0x0194, 0x01a9, 0x01bb, 0x01c7, 0x01d1, 0x01d5, 0x02b9, 0x01d7,
+ 0x003b, 0x01d9, 0x01db, 0x00b7, 0x01e1, 0x01fc, 0x020c, 0x0218,
+ 0x021d, 0x0223, 0x0227, 0x03a3, 0x0233, 0x023f, 0x0242, 0x024b,
+ 0x024e, 0x0251, 0x025d, 0x0260, 0x0269, 0x026c, 0x026f, 0x0275,
+ 0x0278, 0x0281, 0x028a, 0x029c, 0x029f, 0x02a3, 0x02af, 0x02b9,
+ 0x02c5, 0x02c9, 0x02cd, 0x02d1, 0x02d5, 0x02e7, 0x02ed, 0x02f1,
+ 0x02f5, 0x02f9, 0x02fd, 0x0305, 0x0309, 0x030d, 0x0313, 0x0317,
+ 0x031b, 0x0323, 0x0327, 0x032b, 0x032f, 0x0335, 0x033d, 0x0341,
+ 0x0349, 0x034d, 0x0351, 0x0f0b, 0x0357, 0x035b, 0x035f, 0x0363,
+ 0x0367, 0x036b, 0x036f, 0x0373, 0x0379, 0x037d, 0x0381, 0x0385,
+ 0x0389, 0x038d, 0x0391, 0x0395, 0x0399, 0x039d, 0x03a1, 0x10dc,
+ 0x03a5, 0x03c9, 0x03cd, 0x03d9, 0x03dd, 0x03e1, 0x03ef, 0x03f1,
+ 0x043d, 0x044f, 0x0499, 0x04f0, 0x0502, 0x054a, 0x0564, 0x056c,
+ 0x0570, 0x0573, 0x059a, 0x05fa, 0x05fe, 0x0607, 0x060b, 0x0614,
+ 0x0618, 0x061e, 0x0622, 0x0628, 0x068e, 0x0694, 0x0698, 0x069e,
+ 0x06a2, 0x06ab, 0x03ac, 0x06f3, 0x03ad, 0x06f6, 0x03ae, 0x06f9,
+ 0x03af, 0x06fc, 0x03cc, 0x06ff, 0x03cd, 0x0702, 0x03ce, 0x0705,
+ 0x0709, 0x070d, 0x0711, 0x0386, 0x0732, 0x0735, 0x03b9, 0x0737,
+ 0x073b, 0x0388, 0x0753, 0x0389, 0x0756, 0x0390, 0x076b, 0x038a,
+ 0x0777, 0x03b0, 0x0789, 0x038e, 0x0799, 0x079f, 0x07a3, 0x038c,
+ 0x07b8, 0x038f, 0x07bb, 0x00b4, 0x07be, 0x07c0, 0x07c2, 0x2010,
+ 0x07cb, 0x002e, 0x07cd, 0x07cf, 0x0020, 0x07d2, 0x07d6, 0x07db,
+ 0x07df, 0x07e4, 0x07ea, 0x07f0, 0x0020, 0x07f6, 0x2212, 0x0801,
+ 0x0805, 0x0807, 0x081d, 0x0825, 0x0827, 0x0043, 0x082d, 0x0830,
+ 0x0190, 0x0836, 0x0839, 0x004e, 0x0845, 0x0847, 0x084c, 0x084e,
+ 0x0851, 0x005a, 0x03a9, 0x005a, 0x0853, 0x0857, 0x0860, 0x0069,
+ 0x0862, 0x0865, 0x086f, 0x0874, 0x087a, 0x087e, 0x08a2, 0x0049,
+ 0x08a4, 0x08a6, 0x08a9, 0x0056, 0x08ab, 0x08ad, 0x08b0, 0x08b4,
+ 0x0058, 0x08b6, 0x08b8, 0x08bb, 0x08c0, 0x08c2, 0x08c5, 0x0076,
+ 0x08c7, 0x08c9, 0x08cc, 0x08d0, 0x0078, 0x08d2, 0x08d4, 0x08d7,
+ 0x08db, 0x08de, 0x08e4, 0x08e7, 0x08f0, 0x08f3, 0x08f6, 0x08f9,
+ 0x0902, 0x0906, 0x090b, 0x090f, 0x0914, 0x0917, 0x091a, 0x0923,
+ 0x092c, 0x093b, 0x093e, 0x0941, 0x0944, 0x0947, 0x094a, 0x0956,
+ 0x095c, 0x0960, 0x0962, 0x0964, 0x0968, 0x096a, 0x0970, 0x0978,
+ 0x097c, 0x0980, 0x0986, 0x0989, 0x098f, 0x0991, 0x0030, 0x0993,
+ 0x0999, 0x099c, 0x099e, 0x09a1, 0x09a4, 0x2d61, 0x6bcd, 0x9f9f,
+ 0x09a6, 0x09b1, 0x09bc, 0x09c7, 0x0a95, 0x0aa1, 0x0b15, 0x0020,
+ 0x0b27, 0x0b31, 0x0b8d, 0x0ba1, 0x0ba5, 0x0ba9, 0x0bad, 0x0bb1,
+ 0x0bb5, 0x0bb9, 0x0bbd, 0x0bc1, 0x0bc5, 0x0c21, 0x0c35, 0x0c39,
+ 0x0c3d, 0x0c41, 0x0c45, 0x0c49, 0x0c4d, 0x0c51, 0x0c55, 0x0c59,
+ 0x0c6f, 0x0c71, 0x0c73, 0x0ca0, 0x0cbc, 0x0cdc, 0x0ce4, 0x0cec,
+ 0x0cf4, 0x0cfc, 0x0d04, 0x0d0c, 0x0d14, 0x0d22, 0x0d2e, 0x0d7a,
+ 0x0d82, 0x0d85, 0x0d89, 0x0d8d, 0x0d9d, 0x0db1, 0x0db5, 0x0dbc,
+ 0x0dc2, 0x0dc6, 0x0e28, 0x0e2c, 0x0e30, 0x0e32, 0x0e36, 0x0e3c,
+ 0x0e3e, 0x0e41, 0x0e43, 0x0e46, 0x0e77, 0x0e7b, 0x0e89, 0x0e8e,
+ 0x0e94, 0x0e9c, 0x0ea3, 0x0ea9, 0x0eb4, 0x0ebe, 0x0ec6, 0x0eca,
+ 0x0ecf, 0x0ed9, 0x0edd, 0x0ee4, 0x0eec, 0x0ef3, 0x0ef8, 0x0f04,
+ 0x0f0a, 0x0f15, 0x0f1b, 0x0f22, 0x0f28, 0x0f33, 0x0f3d, 0x0f45,
+ 0x0f4c, 0x0f51, 0x0f57, 0x0f5e, 0x0f63, 0x0f69, 0x0f70, 0x0f76,
+ 0x0f7d, 0x0f82, 0x0f89, 0x0f8d, 0x0f9e, 0x0fa4, 0x0fa9, 0x0fad,
+ 0x0fb8, 0x0fbe, 0x0fc9, 0x0fd0, 0x0fd6, 0x0fda, 0x0fe1, 0x0fe5,
+ 0x0fef, 0x0ffa, 0x1000, 0x1004, 0x1009, 0x100f, 0x1013, 0x101a,
+ 0x101f, 0x1023, 0x1029, 0x102f, 0x1032, 0x1036, 0x1039, 0x103f,
+ 0x1045, 0x1059, 0x1061, 0x1079, 0x107c, 0x1080, 0x1095, 0x10a1,
+ 0x10b1, 0x10c3, 0x10cb, 0x10cf, 0x10da, 0x10de, 0x10ea, 0x10f2,
+ 0x10f4, 0x1100, 0x1105, 0x1111, 0x1141, 0x1149, 0x114d, 0x1153,
+ 0x1157, 0x115a, 0x116e, 0x1171, 0x1175, 0x117b, 0x117d, 0x1181,
+ 0x1184, 0x118c, 0x1192, 0x1196, 0x119c, 0x11a2, 0x11a8, 0x11ab,
+ 0xa76f, 0x11af, 0x11b2, 0x11b6, 0x028d, 0x11be, 0x1210, 0x130e,
+ 0x140c, 0x1490, 0x1495, 0x1553, 0x156c, 0x1572, 0x1578, 0x157e,
+ 0x158a, 0x1596, 0x002b, 0x15a1, 0x15b9, 0x15bd, 0x15c1, 0x15c5,
+ 0x15c9, 0x15cd, 0x15e1, 0x15e5, 0x1649, 0x1662, 0x1688, 0x168e,
+ 0x174c, 0x1752, 0x1757, 0x1777, 0x1877, 0x187d, 0x1911, 0x19d3,
+ 0x1a77, 0x1a7f, 0x1a9d, 0x1aa2, 0x1ab6, 0x1ac0, 0x1ac6, 0x1ada,
+ 0x1adf, 0x1ae5, 0x1af3, 0x1b23, 0x1b30, 0x1b38, 0x1b3c, 0x1b52,
+ 0x1bc9, 0x1bdb, 0x1bdd, 0x1bdf, 0x3164, 0x1c20, 0x1c22, 0x1c24,
+ 0x1c26, 0x1c28, 0x1c2a, 0x1c48, 0x1c7e, 0x1cc4, 0x1cd2, 0x1cd7,
+ 0x1ce0, 0x1ce9, 0x1cfb, 0x1d04, 0x1d09, 0x1d29, 0x1d44, 0x1d46,
+ 0x1d48, 0x1d4a, 0x1d4c, 0x1d4e, 0x1d50, 0x1d52, 0x1d72, 0x1d74,
+ 0x1d76, 0x1d78, 0x1d7a, 0x1d81, 0x1d83, 0x1d85, 0x1d87, 0x1d96,
+ 0x1d98, 0x1d9a, 0x1d9c, 0x1d9e, 0x1da0, 0x1da2, 0x1da4, 0x1da6,
+ 0x1da8, 0x1daa, 0x1dac, 0x1dae, 0x1db0, 0x1db2, 0x1db6, 0x03f4,
+ 0x1db8, 0x2207, 0x1dba, 0x2202, 0x1dbc, 0x1dc4, 0x03f4, 0x1dc6,
+ 0x2207, 0x1dc8, 0x2202, 0x1dca, 0x1dd2, 0x03f4, 0x1dd4, 0x2207,
+ 0x1dd6, 0x2202, 0x1dd8, 0x1de0, 0x03f4, 0x1de2, 0x2207, 0x1de4,
+ 0x2202, 0x1de6, 0x1dee, 0x03f4, 0x1df0, 0x2207, 0x1df2, 0x2202,
+ 0x1df4, 0x1dfe, 0x1e00, 0x1e02, 0x1e04, 0x1e06, 0x1e08, 0x1e0a,
+ 0x1e0c, 0x1e0e, 0x1e16, 0x1e39, 0x1e3d, 0x1e43, 0x1e60, 0x062d,
+ 0x1e68, 0x1e74, 0x062c, 0x1e84, 0x1ef4, 0x1f00, 0x1f13, 0x1f25,
+ 0x1f38, 0x1f3a, 0x1f3e, 0x1f44, 0x1f4a, 0x1f4c, 0x1f50, 0x1f52,
+ 0x1f5a, 0x1f5d, 0x1f5f, 0x1f65, 0x1f67, 0x30b5, 0x1f6d, 0x1fc5,
+ 0x1fdb, 0x1fdf, 0x1fe1, 0x1fe6, 0x2033, 0x2044, 0x2145, 0x2155,
+ 0x215b, 0x2255, 0x2373,
+};
+
+static const uint8_t unicode_decomp_data[9345] = {
+ 0x20, 0x88, 0x20, 0x84, 0x32, 0x33, 0x20, 0x81,
+ 0x20, 0xa7, 0x31, 0x6f, 0x31, 0xd0, 0x34, 0x31,
+ 0xd0, 0x32, 0x33, 0xd0, 0x34, 0x41, 0x80, 0x41,
+ 0x81, 0x41, 0x82, 0x41, 0x83, 0x41, 0x88, 0x41,
+ 0x8a, 0x00, 0x00, 0x43, 0xa7, 0x45, 0x80, 0x45,
+ 0x81, 0x45, 0x82, 0x45, 0x88, 0x49, 0x80, 0x49,
+ 0x81, 0x49, 0x82, 0x49, 0x88, 0x00, 0x00, 0x4e,
+ 0x83, 0x4f, 0x80, 0x4f, 0x81, 0x4f, 0x82, 0x4f,
+ 0x83, 0x4f, 0x88, 0x00, 0x00, 0x00, 0x00, 0x55,
+ 0x80, 0x55, 0x81, 0x55, 0x82, 0x55, 0x88, 0x59,
+ 0x81, 0x00, 0x00, 0x00, 0x00, 0x61, 0x80, 0x61,
+ 0x81, 0x61, 0x82, 0x61, 0x83, 0x61, 0x88, 0x61,
+ 0x8a, 0x00, 0x00, 0x63, 0xa7, 0x65, 0x80, 0x65,
+ 0x81, 0x65, 0x82, 0x65, 0x88, 0x69, 0x80, 0x69,
+ 0x81, 0x69, 0x82, 0x69, 0x88, 0x00, 0x00, 0x6e,
+ 0x83, 0x6f, 0x80, 0x6f, 0x81, 0x6f, 0x82, 0x6f,
+ 0x83, 0x6f, 0x88, 0x00, 0x00, 0x00, 0x00, 0x75,
+ 0x80, 0x75, 0x81, 0x75, 0x82, 0x75, 0x88, 0x79,
+ 0x81, 0x00, 0x00, 0x79, 0x88, 0x41, 0x84, 0x41,
+ 0x86, 0x41, 0xa8, 0x43, 0x81, 0x43, 0x82, 0x43,
+ 0x87, 0x43, 0x8c, 0x44, 0x8c, 0x45, 0x84, 0x45,
+ 0x86, 0x45, 0x87, 0x45, 0xa8, 0x45, 0x8c, 0x47,
+ 0x82, 0x47, 0x86, 0x47, 0x87, 0x47, 0xa7, 0x48,
+ 0x82, 0x49, 0x83, 0x49, 0x84, 0x49, 0x86, 0x49,
+ 0xa8, 0x49, 0x87, 0x49, 0x4a, 0x69, 0x6a, 0x4a,
+ 0x82, 0x4b, 0xa7, 0x4c, 0x81, 0x4c, 0xa7, 0x4c,
+ 0x8c, 0x4c, 0x00, 0x00, 0x6b, 0x20, 0x6b, 0x4e,
+ 0x81, 0x4e, 0xa7, 0x4e, 0x8c, 0xbc, 0x02, 0x6e,
+ 0x4f, 0x84, 0x4f, 0x86, 0x4f, 0x8b, 0x52, 0x81,
+ 0x52, 0xa7, 0x52, 0x8c, 0x53, 0x81, 0x53, 0x82,
+ 0x53, 0xa7, 0x53, 0x8c, 0x54, 0xa7, 0x54, 0x8c,
+ 0x55, 0x83, 0x55, 0x84, 0x55, 0x86, 0x55, 0x8a,
+ 0x55, 0x8b, 0x55, 0xa8, 0x57, 0x82, 0x59, 0x82,
+ 0x59, 0x88, 0x5a, 0x81, 0x5a, 0x87, 0x5a, 0x8c,
+ 0x4f, 0x9b, 0x55, 0x9b, 0x44, 0x00, 0x7d, 0x01,
+ 0x44, 0x00, 0x7e, 0x01, 0x64, 0x00, 0x7e, 0x01,
+ 0x4c, 0x4a, 0x4c, 0x6a, 0x6c, 0x6a, 0x4e, 0x4a,
+ 0x4e, 0x6a, 0x6e, 0x6a, 0x41, 0x00, 0x8c, 0x49,
+ 0x00, 0x8c, 0x4f, 0x00, 0x8c, 0x55, 0x00, 0x8c,
+ 0xdc, 0x00, 0x84, 0xdc, 0x00, 0x81, 0xdc, 0x00,
+ 0x8c, 0xdc, 0x00, 0x80, 0xc4, 0x00, 0x84, 0x26,
+ 0x02, 0x84, 0xc6, 0x00, 0x84, 0x47, 0x8c, 0x4b,
+ 0x8c, 0x4f, 0xa8, 0xea, 0x01, 0x84, 0xeb, 0x01,
+ 0x84, 0xb7, 0x01, 0x8c, 0x92, 0x02, 0x8c, 0x6a,
+ 0x00, 0x8c, 0x44, 0x5a, 0x44, 0x7a, 0x64, 0x7a,
+ 0x47, 0x81, 0x4e, 0x00, 0x80, 0xc5, 0x00, 0x81,
+ 0xc6, 0x00, 0x81, 0xd8, 0x00, 0x81, 0x41, 0x8f,
+ 0x41, 0x91, 0x45, 0x8f, 0x45, 0x91, 0x49, 0x8f,
+ 0x49, 0x91, 0x4f, 0x8f, 0x4f, 0x91, 0x52, 0x8f,
+ 0x52, 0x91, 0x55, 0x8f, 0x55, 0x91, 0x53, 0xa6,
+ 0x54, 0xa6, 0x48, 0x8c, 0x41, 0x00, 0x87, 0x45,
+ 0x00, 0xa7, 0xd6, 0x00, 0x84, 0xd5, 0x00, 0x84,
+ 0x4f, 0x00, 0x87, 0x2e, 0x02, 0x84, 0x59, 0x00,
+ 0x84, 0x68, 0x00, 0x66, 0x02, 0x6a, 0x00, 0x72,
+ 0x00, 0x79, 0x02, 0x7b, 0x02, 0x81, 0x02, 0x77,
+ 0x00, 0x79, 0x00, 0x20, 0x86, 0x20, 0x87, 0x20,
+ 0x8a, 0x20, 0xa8, 0x20, 0x83, 0x20, 0x8b, 0x63,
+ 0x02, 0x6c, 0x00, 0x73, 0x00, 0x78, 0x00, 0x95,
+ 0x02, 0x80, 0x81, 0x00, 0x93, 0x88, 0x81, 0x20,
+ 0xc5, 0x20, 0x81, 0xa8, 0x00, 0x81, 0x91, 0x03,
+ 0x81, 0x95, 0x03, 0x81, 0x97, 0x03, 0x81, 0x99,
+ 0x03, 0x81, 0x00, 0x00, 0x00, 0x9f, 0x03, 0x81,
+ 0x00, 0x00, 0x00, 0xa5, 0x03, 0x81, 0xa9, 0x03,
+ 0x81, 0xca, 0x03, 0x81, 0x01, 0x03, 0x98, 0x07,
+ 0xa4, 0x07, 0xb0, 0x00, 0xb4, 0x00, 0xb6, 0x00,
+ 0xb8, 0x00, 0xca, 0x00, 0x01, 0x03, 0xb8, 0x07,
+ 0xc4, 0x07, 0xbe, 0x00, 0xc4, 0x00, 0xc8, 0x00,
+ 0xa5, 0x03, 0x0d, 0x13, 0x00, 0x01, 0x03, 0xd1,
+ 0x00, 0xd1, 0x07, 0xc6, 0x03, 0xc0, 0x03, 0xba,
+ 0x03, 0xc1, 0x03, 0xc2, 0x03, 0x00, 0x00, 0x98,
+ 0x03, 0xb5, 0x03, 0x15, 0x04, 0x80, 0x15, 0x04,
+ 0x88, 0x00, 0x00, 0x00, 0x13, 0x04, 0x81, 0x06,
+ 0x04, 0x88, 0x1a, 0x04, 0x81, 0x18, 0x04, 0x80,
+ 0x23, 0x04, 0x86, 0x18, 0x04, 0x86, 0x38, 0x04,
+ 0x86, 0x35, 0x04, 0x80, 0x35, 0x04, 0x88, 0x00,
+ 0x00, 0x00, 0x33, 0x04, 0x81, 0x56, 0x04, 0x88,
+ 0x3a, 0x04, 0x81, 0x38, 0x04, 0x80, 0x43, 0x04,
+ 0x86, 0x74, 0x04, 0x8f, 0x16, 0x04, 0x86, 0x10,
+ 0x04, 0x86, 0x10, 0x04, 0x88, 0x15, 0x04, 0x86,
+ 0xd8, 0x04, 0x88, 0x16, 0x04, 0x88, 0x17, 0x04,
+ 0x88, 0x18, 0x04, 0x84, 0x18, 0x04, 0x88, 0x1e,
+ 0x04, 0x88, 0xe8, 0x04, 0x88, 0x2d, 0x04, 0x88,
+ 0x23, 0x04, 0x84, 0x23, 0x04, 0x88, 0x23, 0x04,
+ 0x8b, 0x27, 0x04, 0x88, 0x2b, 0x04, 0x88, 0x65,
+ 0x05, 0x82, 0x05, 0x27, 0x06, 0x00, 0x2c, 0x00,
+ 0x2d, 0x21, 0x2d, 0x00, 0x2e, 0x23, 0x2d, 0x27,
+ 0x06, 0x00, 0x4d, 0x21, 0x4d, 0xa0, 0x4d, 0x23,
+ 0x4d, 0xd5, 0x06, 0x54, 0x06, 0x00, 0x00, 0x00,
+ 0x00, 0xc1, 0x06, 0x54, 0x06, 0xd2, 0x06, 0x54,
+ 0x06, 0x28, 0x09, 0x3c, 0x09, 0x30, 0x09, 0x3c,
+ 0x09, 0x33, 0x09, 0x3c, 0x09, 0x15, 0x09, 0x00,
+ 0x27, 0x01, 0x27, 0x02, 0x27, 0x07, 0x27, 0x0c,
+ 0x27, 0x0d, 0x27, 0x16, 0x27, 0x1a, 0x27, 0xbe,
+ 0x09, 0x09, 0x00, 0x09, 0x19, 0xa1, 0x09, 0xbc,
+ 0x09, 0xaf, 0x09, 0xbc, 0x09, 0x32, 0x0a, 0x3c,
+ 0x0a, 0x38, 0x0a, 0x3c, 0x0a, 0x16, 0x0a, 0x00,
+ 0x26, 0x01, 0x26, 0x06, 0x26, 0x2b, 0x0a, 0x3c,
+ 0x0a, 0x47, 0x0b, 0x56, 0x0b, 0x3e, 0x0b, 0x09,
+ 0x00, 0x09, 0x19, 0x21, 0x0b, 0x3c, 0x0b, 0x92,
+ 0x0b, 0xd7, 0x0b, 0xbe, 0x0b, 0x08, 0x00, 0x09,
+ 0x00, 0x08, 0x19, 0x46, 0x0c, 0x56, 0x0c, 0xbf,
+ 0x0c, 0xd5, 0x0c, 0xc6, 0x0c, 0xd5, 0x0c, 0xc2,
+ 0x0c, 0x04, 0x00, 0x08, 0x13, 0x3e, 0x0d, 0x08,
+ 0x00, 0x09, 0x00, 0x08, 0x19, 0xd9, 0x0d, 0xca,
+ 0x0d, 0xca, 0x0d, 0x0f, 0x05, 0x12, 0x00, 0x0f,
+ 0x15, 0x4d, 0x0e, 0x32, 0x0e, 0xcd, 0x0e, 0xb2,
+ 0x0e, 0x99, 0x0e, 0x12, 0x00, 0x12, 0x08, 0x42,
+ 0x0f, 0xb7, 0x0f, 0x4c, 0x0f, 0xb7, 0x0f, 0x51,
+ 0x0f, 0xb7, 0x0f, 0x56, 0x0f, 0xb7, 0x0f, 0x5b,
+ 0x0f, 0xb7, 0x0f, 0x40, 0x0f, 0xb5, 0x0f, 0x71,
+ 0x0f, 0x72, 0x0f, 0x71, 0x0f, 0x00, 0x03, 0x41,
+ 0x0f, 0xb2, 0x0f, 0x81, 0x0f, 0xb3, 0x0f, 0x80,
+ 0x0f, 0xb3, 0x0f, 0x81, 0x0f, 0x71, 0x0f, 0x80,
+ 0x0f, 0x92, 0x0f, 0xb7, 0x0f, 0x9c, 0x0f, 0xb7,
+ 0x0f, 0xa1, 0x0f, 0xb7, 0x0f, 0xa6, 0x0f, 0xb7,
+ 0x0f, 0xab, 0x0f, 0xb7, 0x0f, 0x90, 0x0f, 0xb5,
+ 0x0f, 0x25, 0x10, 0x2e, 0x10, 0x05, 0x1b, 0x35,
+ 0x1b, 0x00, 0x00, 0x00, 0x00, 0x07, 0x1b, 0x35,
+ 0x1b, 0x00, 0x00, 0x00, 0x00, 0x09, 0x1b, 0x35,
+ 0x1b, 0x00, 0x00, 0x00, 0x00, 0x0b, 0x1b, 0x35,
+ 0x1b, 0x00, 0x00, 0x00, 0x00, 0x0d, 0x1b, 0x35,
+ 0x1b, 0x11, 0x1b, 0x35, 0x1b, 0x3a, 0x1b, 0x35,
+ 0x1b, 0x00, 0x00, 0x00, 0x00, 0x3c, 0x1b, 0x35,
+ 0x1b, 0x3e, 0x1b, 0x35, 0x1b, 0x42, 0x1b, 0x35,
+ 0x1b, 0x41, 0x00, 0xc6, 0x00, 0x42, 0x00, 0x00,
+ 0x00, 0x44, 0x00, 0x45, 0x00, 0x8e, 0x01, 0x47,
+ 0x00, 0x4f, 0x00, 0x22, 0x02, 0x50, 0x00, 0x52,
+ 0x00, 0x54, 0x00, 0x55, 0x00, 0x57, 0x00, 0x61,
+ 0x00, 0x50, 0x02, 0x51, 0x02, 0x02, 0x1d, 0x62,
+ 0x00, 0x64, 0x00, 0x65, 0x00, 0x59, 0x02, 0x5b,
+ 0x02, 0x5c, 0x02, 0x67, 0x00, 0x00, 0x00, 0x6b,
+ 0x00, 0x6d, 0x00, 0x4b, 0x01, 0x6f, 0x00, 0x54,
+ 0x02, 0x16, 0x1d, 0x17, 0x1d, 0x70, 0x00, 0x74,
+ 0x00, 0x75, 0x00, 0x1d, 0x1d, 0x6f, 0x02, 0x76,
+ 0x00, 0x25, 0x1d, 0xb2, 0x03, 0xb3, 0x03, 0xb4,
+ 0x03, 0xc6, 0x03, 0xc7, 0x03, 0x69, 0x00, 0x72,
+ 0x00, 0x75, 0x00, 0x76, 0x00, 0xb2, 0x03, 0xb3,
+ 0x03, 0xc1, 0x03, 0xc6, 0x03, 0xc7, 0x03, 0x52,
+ 0x02, 0x63, 0x00, 0x55, 0x02, 0xf0, 0x00, 0x5c,
+ 0x02, 0x66, 0x00, 0x5f, 0x02, 0x61, 0x02, 0x65,
+ 0x02, 0x68, 0x02, 0x69, 0x02, 0x6a, 0x02, 0x7b,
+ 0x1d, 0x9d, 0x02, 0x6d, 0x02, 0x85, 0x1d, 0x9f,
+ 0x02, 0x71, 0x02, 0x70, 0x02, 0x72, 0x02, 0x73,
+ 0x02, 0x74, 0x02, 0x75, 0x02, 0x78, 0x02, 0x82,
+ 0x02, 0x83, 0x02, 0xab, 0x01, 0x89, 0x02, 0x8a,
+ 0x02, 0x1c, 0x1d, 0x8b, 0x02, 0x8c, 0x02, 0x7a,
+ 0x00, 0x90, 0x02, 0x91, 0x02, 0x92, 0x02, 0xb8,
+ 0x03, 0x41, 0x00, 0xa5, 0x42, 0x00, 0x87, 0x42,
+ 0x00, 0xa3, 0x42, 0x00, 0xb1, 0xc7, 0x00, 0x81,
+ 0x44, 0x00, 0x87, 0x44, 0x00, 0xa3, 0x44, 0x00,
+ 0xb1, 0x44, 0x00, 0xa7, 0x44, 0x00, 0xad, 0x12,
+ 0x01, 0x80, 0x12, 0x01, 0x81, 0x45, 0x00, 0xad,
+ 0x45, 0x00, 0xb0, 0x28, 0x02, 0x86, 0x46, 0x00,
+ 0x87, 0x47, 0x00, 0x84, 0x48, 0x00, 0x87, 0x48,
+ 0x00, 0xa3, 0x48, 0x00, 0x88, 0x48, 0x00, 0xa7,
+ 0x48, 0x00, 0xae, 0x49, 0x00, 0xb0, 0xcf, 0x00,
+ 0x81, 0x4b, 0x00, 0x81, 0x4b, 0x00, 0xa3, 0x4b,
+ 0x00, 0xb1, 0x4c, 0x00, 0xa3, 0x36, 0x1e, 0x84,
+ 0x4c, 0xb1, 0x4c, 0xad, 0x4d, 0x81, 0x4d, 0x87,
+ 0x4d, 0xa3, 0x4e, 0x87, 0x4e, 0xa3, 0x4e, 0xb1,
+ 0x4e, 0xad, 0xd5, 0x00, 0x81, 0xd5, 0x00, 0x88,
+ 0x4c, 0x01, 0x80, 0x4c, 0x01, 0x81, 0x50, 0x00,
+ 0x81, 0x50, 0x00, 0x87, 0x52, 0x00, 0x87, 0x52,
+ 0x00, 0xa3, 0x5a, 0x1e, 0x84, 0x52, 0x00, 0xb1,
+ 0x53, 0x00, 0x87, 0x53, 0x00, 0xa3, 0x5a, 0x01,
+ 0x87, 0x60, 0x01, 0x87, 0x62, 0x1e, 0x87, 0x54,
+ 0x00, 0x87, 0x54, 0x00, 0xa3, 0x54, 0x00, 0xb1,
+ 0x54, 0x00, 0xad, 0x55, 0x00, 0xa4, 0x55, 0x00,
+ 0xb0, 0x55, 0x00, 0xad, 0x68, 0x01, 0x81, 0x6a,
+ 0x01, 0x88, 0x56, 0x83, 0x56, 0xa3, 0x57, 0x80,
+ 0x57, 0x81, 0x57, 0x88, 0x57, 0x87, 0x57, 0xa3,
+ 0x58, 0x87, 0x58, 0x88, 0x59, 0x87, 0x5a, 0x82,
+ 0x5a, 0xa3, 0x5a, 0xb1, 0x68, 0xb1, 0x74, 0x88,
+ 0x77, 0x8a, 0x79, 0x8a, 0x61, 0x00, 0xbe, 0x02,
+ 0x7f, 0x01, 0x87, 0x41, 0x00, 0xa3, 0x41, 0x00,
+ 0x89, 0xc2, 0x00, 0x81, 0xc2, 0x00, 0x80, 0xc2,
+ 0x00, 0x89, 0xc2, 0x00, 0x83, 0xa0, 0x1e, 0x82,
+ 0x02, 0x01, 0x81, 0x02, 0x01, 0x80, 0x02, 0x01,
+ 0x89, 0x02, 0x01, 0x83, 0xa0, 0x1e, 0x86, 0x45,
+ 0x00, 0xa3, 0x45, 0x00, 0x89, 0x45, 0x00, 0x83,
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+ 0xca, 0x5e, 0x92, 0xa3, 0xfe, 0x5e, 0x31, 0x23,
+ 0x31, 0x23, 0x01, 0x82, 0x22, 0x5f, 0x22, 0x5f,
+ 0xc7, 0x38, 0xb8, 0x32, 0xda, 0x61, 0x62, 0x5f,
+ 0x6b, 0x5f, 0xe3, 0x38, 0x9a, 0x5f, 0xcd, 0x5f,
+ 0xd7, 0x5f, 0xf9, 0x5f, 0x81, 0x60, 0x3a, 0x39,
+ 0x1c, 0x39, 0x94, 0x60, 0xd4, 0x26, 0xc7, 0x60,
+ 0x02, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x08, 0x00, 0x0a, 0x00, 0x00, 0x02, 0x08,
+ 0x00, 0x80, 0x08, 0x00, 0x00, 0x08, 0x80, 0x28,
+ 0x80, 0x02, 0x00, 0x00, 0x02, 0x48, 0x61, 0x00,
+ 0x04, 0x06, 0x04, 0x32, 0x46, 0x6a, 0x5c, 0x67,
+ 0x96, 0xaa, 0xae, 0xc8, 0xd3, 0x5d, 0x62, 0x00,
+ 0x54, 0x77, 0xf3, 0x0c, 0x2b, 0x3d, 0x63, 0xfc,
+ 0x62, 0x68, 0x63, 0x83, 0x63, 0xe4, 0x63, 0xf1,
+ 0x2b, 0x22, 0x64, 0xc5, 0x63, 0xa9, 0x63, 0x2e,
+ 0x3a, 0x69, 0x64, 0x7e, 0x64, 0x9d, 0x64, 0x77,
+ 0x64, 0x6c, 0x3a, 0x4f, 0x65, 0x6c, 0x65, 0x0a,
+ 0x30, 0xe3, 0x65, 0xf8, 0x66, 0x49, 0x66, 0x19,
+ 0x3b, 0x91, 0x66, 0x08, 0x3b, 0xe4, 0x3a, 0x92,
+ 0x51, 0x95, 0x51, 0x00, 0x67, 0x9c, 0x66, 0xad,
+ 0x80, 0xd9, 0x43, 0x17, 0x67, 0x1b, 0x67, 0x21,
+ 0x67, 0x5e, 0x67, 0x53, 0x67, 0xc3, 0x33, 0x49,
+ 0x3b, 0xfa, 0x67, 0x85, 0x67, 0x52, 0x68, 0x85,
+ 0x68, 0x6d, 0x34, 0x8e, 0x68, 0x1f, 0x68, 0x14,
+ 0x69, 0x9d, 0x3b, 0x42, 0x69, 0xa3, 0x69, 0xea,
+ 0x69, 0xa8, 0x6a, 0xa3, 0x36, 0xdb, 0x6a, 0x18,
+ 0x3c, 0x21, 0x6b, 0xa7, 0x38, 0x54, 0x6b, 0x4e,
+ 0x3c, 0x72, 0x6b, 0x9f, 0x6b, 0xba, 0x6b, 0xbb,
+ 0x6b, 0x8d, 0x3a, 0x0b, 0x1d, 0xfa, 0x3a, 0x4e,
+ 0x6c, 0xbc, 0x3c, 0xbf, 0x6c, 0xcd, 0x6c, 0x67,
+ 0x6c, 0x16, 0x6d, 0x3e, 0x6d, 0x77, 0x6d, 0x41,
+ 0x6d, 0x69, 0x6d, 0x78, 0x6d, 0x85, 0x6d, 0x1e,
+ 0x3d, 0x34, 0x6d, 0x2f, 0x6e, 0x6e, 0x6e, 0x33,
+ 0x3d, 0xcb, 0x6e, 0xc7, 0x6e, 0xd1, 0x3e, 0xf9,
+ 0x6d, 0x6e, 0x6f, 0x5e, 0x3f, 0x8e, 0x3f, 0xc6,
+ 0x6f, 0x39, 0x70, 0x1e, 0x70, 0x1b, 0x70, 0x96,
+ 0x3d, 0x4a, 0x70, 0x7d, 0x70, 0x77, 0x70, 0xad,
+ 0x70, 0x25, 0x05, 0x45, 0x71, 0x63, 0x42, 0x9c,
+ 0x71, 0xab, 0x43, 0x28, 0x72, 0x35, 0x72, 0x50,
+ 0x72, 0x08, 0x46, 0x80, 0x72, 0x95, 0x72, 0x35,
+ 0x47, 0x02, 0x20, 0x00, 0x00, 0x20, 0x00, 0x00,
+ 0x00, 0x00, 0x08, 0x80, 0x00, 0x00, 0x02, 0x02,
+ 0x80, 0x8a, 0x00, 0x00, 0x20, 0x00, 0x08, 0x0a,
+ 0x00, 0x80, 0x88, 0x80, 0x20, 0x14, 0x48, 0x7a,
+ 0x73, 0x8b, 0x73, 0xac, 0x3e, 0xa5, 0x73, 0xb8,
+ 0x3e, 0xb8, 0x3e, 0x47, 0x74, 0x5c, 0x74, 0x71,
+ 0x74, 0x85, 0x74, 0xca, 0x74, 0x1b, 0x3f, 0x24,
+ 0x75, 0x36, 0x4c, 0x3e, 0x75, 0x92, 0x4c, 0x70,
+ 0x75, 0x9f, 0x21, 0x10, 0x76, 0xa1, 0x4f, 0xb8,
+ 0x4f, 0x44, 0x50, 0xfc, 0x3f, 0x08, 0x40, 0xf4,
+ 0x76, 0xf3, 0x50, 0xf2, 0x50, 0x19, 0x51, 0x33,
+ 0x51, 0x1e, 0x77, 0x1f, 0x77, 0x1f, 0x77, 0x4a,
+ 0x77, 0x39, 0x40, 0x8b, 0x77, 0x46, 0x40, 0x96,
+ 0x40, 0x1d, 0x54, 0x4e, 0x78, 0x8c, 0x78, 0xcc,
+ 0x78, 0xe3, 0x40, 0x26, 0x56, 0x56, 0x79, 0x9a,
+ 0x56, 0xc5, 0x56, 0x8f, 0x79, 0xeb, 0x79, 0x2f,
+ 0x41, 0x40, 0x7a, 0x4a, 0x7a, 0x4f, 0x7a, 0x7c,
+ 0x59, 0xa7, 0x5a, 0xa7, 0x5a, 0xee, 0x7a, 0x02,
+ 0x42, 0xab, 0x5b, 0xc6, 0x7b, 0xc9, 0x7b, 0x27,
+ 0x42, 0x80, 0x5c, 0xd2, 0x7c, 0xa0, 0x42, 0xe8,
+ 0x7c, 0xe3, 0x7c, 0x00, 0x7d, 0x86, 0x5f, 0x63,
+ 0x7d, 0x01, 0x43, 0xc7, 0x7d, 0x02, 0x7e, 0x45,
+ 0x7e, 0x34, 0x43, 0x28, 0x62, 0x47, 0x62, 0x59,
+ 0x43, 0xd9, 0x62, 0x7a, 0x7f, 0x3e, 0x63, 0x95,
+ 0x7f, 0xfa, 0x7f, 0x05, 0x80, 0xda, 0x64, 0x23,
+ 0x65, 0x60, 0x80, 0xa8, 0x65, 0x70, 0x80, 0x5f,
+ 0x33, 0xd5, 0x43, 0xb2, 0x80, 0x03, 0x81, 0x0b,
+ 0x44, 0x3e, 0x81, 0xb5, 0x5a, 0xa7, 0x67, 0xb5,
+ 0x67, 0x93, 0x33, 0x9c, 0x33, 0x01, 0x82, 0x04,
+ 0x82, 0x9e, 0x8f, 0x6b, 0x44, 0x91, 0x82, 0x8b,
+ 0x82, 0x9d, 0x82, 0xb3, 0x52, 0xb1, 0x82, 0xb3,
+ 0x82, 0xbd, 0x82, 0xe6, 0x82, 0x3c, 0x6b, 0xe5,
+ 0x82, 0x1d, 0x83, 0x63, 0x83, 0xad, 0x83, 0x23,
+ 0x83, 0xbd, 0x83, 0xe7, 0x83, 0x57, 0x84, 0x53,
+ 0x83, 0xca, 0x83, 0xcc, 0x83, 0xdc, 0x83, 0x36,
+ 0x6c, 0x6b, 0x6d, 0x02, 0x00, 0x00, 0x20, 0x22,
+ 0x2a, 0xa0, 0x0a, 0x00, 0x20, 0x80, 0x28, 0x00,
+ 0xa8, 0x20, 0x20, 0x00, 0x02, 0x80, 0x22, 0x02,
+ 0x8a, 0x08, 0x00, 0xaa, 0x00, 0x00, 0x00, 0x02,
+ 0x00, 0x00, 0x28, 0xd5, 0x6c, 0x2b, 0x45, 0xf1,
+ 0x84, 0xf3, 0x84, 0x16, 0x85, 0xca, 0x73, 0x64,
+ 0x85, 0x2c, 0x6f, 0x5d, 0x45, 0x61, 0x45, 0xb1,
+ 0x6f, 0xd2, 0x70, 0x6b, 0x45, 0x50, 0x86, 0x5c,
+ 0x86, 0x67, 0x86, 0x69, 0x86, 0xa9, 0x86, 0x88,
+ 0x86, 0x0e, 0x87, 0xe2, 0x86, 0x79, 0x87, 0x28,
+ 0x87, 0x6b, 0x87, 0x86, 0x87, 0xd7, 0x45, 0xe1,
+ 0x87, 0x01, 0x88, 0xf9, 0x45, 0x60, 0x88, 0x63,
+ 0x88, 0x67, 0x76, 0xd7, 0x88, 0xde, 0x88, 0x35,
+ 0x46, 0xfa, 0x88, 0xbb, 0x34, 0xae, 0x78, 0x66,
+ 0x79, 0xbe, 0x46, 0xc7, 0x46, 0xa0, 0x8a, 0xed,
+ 0x8a, 0x8a, 0x8b, 0x55, 0x8c, 0xa8, 0x7c, 0xab,
+ 0x8c, 0xc1, 0x8c, 0x1b, 0x8d, 0x77, 0x8d, 0x2f,
+ 0x7f, 0x04, 0x08, 0xcb, 0x8d, 0xbc, 0x8d, 0xf0,
+ 0x8d, 0xde, 0x08, 0xd4, 0x8e, 0x38, 0x8f, 0xd2,
+ 0x85, 0xed, 0x85, 0x94, 0x90, 0xf1, 0x90, 0x11,
+ 0x91, 0x2e, 0x87, 0x1b, 0x91, 0x38, 0x92, 0xd7,
+ 0x92, 0xd8, 0x92, 0x7c, 0x92, 0xf9, 0x93, 0x15,
+ 0x94, 0xfa, 0x8b, 0x8b, 0x95, 0x95, 0x49, 0xb7,
+ 0x95, 0x77, 0x8d, 0xe6, 0x49, 0xc3, 0x96, 0xb2,
+ 0x5d, 0x23, 0x97, 0x45, 0x91, 0x1a, 0x92, 0x6e,
+ 0x4a, 0x76, 0x4a, 0xe0, 0x97, 0x0a, 0x94, 0xb2,
+ 0x4a, 0x96, 0x94, 0x0b, 0x98, 0x0b, 0x98, 0x29,
+ 0x98, 0xb6, 0x95, 0xe2, 0x98, 0x33, 0x4b, 0x29,
+ 0x99, 0xa7, 0x99, 0xc2, 0x99, 0xfe, 0x99, 0xce,
+ 0x4b, 0x30, 0x9b, 0x12, 0x9b, 0x40, 0x9c, 0xfd,
+ 0x9c, 0xce, 0x4c, 0xed, 0x4c, 0x67, 0x9d, 0xce,
+ 0xa0, 0xf8, 0x4c, 0x05, 0xa1, 0x0e, 0xa2, 0x91,
+ 0xa2, 0xbb, 0x9e, 0x56, 0x4d, 0xf9, 0x9e, 0xfe,
+ 0x9e, 0x05, 0x9f, 0x0f, 0x9f, 0x16, 0x9f, 0x3b,
+ 0x9f, 0x00, 0xa6, 0x02, 0x88, 0xa0, 0x00, 0x00,
+ 0x00, 0x00, 0x80, 0x00, 0x28, 0x00, 0x08, 0xa0,
+ 0x80, 0xa0, 0x80, 0x00, 0x80, 0x80, 0x00, 0x0a,
+ 0x88, 0x80, 0x00, 0x80, 0x00, 0x20, 0x2a, 0x00,
+ 0x80,
+};
+
+static const uint16_t unicode_comp_table[945] = {
+ 0x4a01, 0x49c0, 0x4a02, 0x0280, 0x0281, 0x0282, 0x0283, 0x02c0,
+ 0x02c2, 0x0a00, 0x0284, 0x2442, 0x0285, 0x07c0, 0x0980, 0x0982,
+ 0x2440, 0x2280, 0x02c4, 0x2282, 0x2284, 0x2286, 0x02c6, 0x02c8,
+ 0x02ca, 0x02cc, 0x0287, 0x228a, 0x02ce, 0x228c, 0x2290, 0x2292,
+ 0x228e, 0x0288, 0x0289, 0x028a, 0x2482, 0x0300, 0x0302, 0x0304,
+ 0x028b, 0x2480, 0x0308, 0x0984, 0x0986, 0x2458, 0x0a02, 0x0306,
+ 0x2298, 0x229a, 0x229e, 0x0900, 0x030a, 0x22a0, 0x030c, 0x030e,
+ 0x0840, 0x0310, 0x0312, 0x22a2, 0x22a6, 0x09c0, 0x22a4, 0x22a8,
+ 0x22aa, 0x028c, 0x028d, 0x028e, 0x0340, 0x0342, 0x0344, 0x0380,
+ 0x028f, 0x248e, 0x07c2, 0x0988, 0x098a, 0x2490, 0x0346, 0x22ac,
+ 0x0400, 0x22b0, 0x0842, 0x22b2, 0x0402, 0x22b4, 0x0440, 0x0444,
+ 0x22b6, 0x0442, 0x22c2, 0x22c0, 0x22c4, 0x22c6, 0x22c8, 0x0940,
+ 0x04c0, 0x0291, 0x22ca, 0x04c4, 0x22cc, 0x04c2, 0x22d0, 0x22ce,
+ 0x0292, 0x0293, 0x0294, 0x0295, 0x0540, 0x0542, 0x0a08, 0x0296,
+ 0x2494, 0x0544, 0x07c4, 0x098c, 0x098e, 0x06c0, 0x2492, 0x0844,
+ 0x2308, 0x230a, 0x0580, 0x230c, 0x0584, 0x0990, 0x0992, 0x230e,
+ 0x0582, 0x2312, 0x0586, 0x0588, 0x2314, 0x058c, 0x2316, 0x0998,
+ 0x058a, 0x231e, 0x0590, 0x2320, 0x099a, 0x058e, 0x2324, 0x2322,
+ 0x0299, 0x029a, 0x029b, 0x05c0, 0x05c2, 0x05c4, 0x029c, 0x24ac,
+ 0x05c6, 0x05c8, 0x07c6, 0x0994, 0x0996, 0x0700, 0x24aa, 0x2326,
+ 0x05ca, 0x232a, 0x2328, 0x2340, 0x2342, 0x2344, 0x2346, 0x05cc,
+ 0x234a, 0x2348, 0x234c, 0x234e, 0x2350, 0x24b8, 0x029d, 0x05ce,
+ 0x24be, 0x0a0c, 0x2352, 0x0600, 0x24bc, 0x24ba, 0x0640, 0x2354,
+ 0x0642, 0x0644, 0x2356, 0x2358, 0x02a0, 0x02a1, 0x02a2, 0x02a3,
+ 0x02c1, 0x02c3, 0x0a01, 0x02a4, 0x2443, 0x02a5, 0x07c1, 0x0981,
+ 0x0983, 0x2441, 0x2281, 0x02c5, 0x2283, 0x2285, 0x2287, 0x02c7,
+ 0x02c9, 0x02cb, 0x02cd, 0x02a7, 0x228b, 0x02cf, 0x228d, 0x2291,
+ 0x2293, 0x228f, 0x02a8, 0x02a9, 0x02aa, 0x2483, 0x0301, 0x0303,
+ 0x0305, 0x02ab, 0x2481, 0x0309, 0x0985, 0x0987, 0x2459, 0x0a03,
+ 0x0307, 0x2299, 0x229b, 0x229f, 0x0901, 0x030b, 0x22a1, 0x030d,
+ 0x030f, 0x0841, 0x0311, 0x0313, 0x22a3, 0x22a7, 0x09c1, 0x22a5,
+ 0x22a9, 0x22ab, 0x2380, 0x02ac, 0x02ad, 0x02ae, 0x0341, 0x0343,
+ 0x0345, 0x02af, 0x248f, 0x07c3, 0x0989, 0x098b, 0x2491, 0x0347,
+ 0x22ad, 0x0401, 0x0884, 0x22b1, 0x0843, 0x22b3, 0x0403, 0x22b5,
+ 0x0441, 0x0445, 0x22b7, 0x0443, 0x22c3, 0x22c1, 0x22c5, 0x22c7,
+ 0x22c9, 0x0941, 0x04c1, 0x02b1, 0x22cb, 0x04c5, 0x22cd, 0x04c3,
+ 0x22d1, 0x22cf, 0x02b2, 0x02b3, 0x02b4, 0x02b5, 0x0541, 0x0543,
+ 0x0a09, 0x02b6, 0x2495, 0x0545, 0x07c5, 0x098d, 0x098f, 0x06c1,
+ 0x2493, 0x0845, 0x2309, 0x230b, 0x0581, 0x230d, 0x0585, 0x0991,
+ 0x0993, 0x230f, 0x0583, 0x2313, 0x0587, 0x0589, 0x2315, 0x058d,
+ 0x2317, 0x0999, 0x058b, 0x231f, 0x2381, 0x0591, 0x2321, 0x099b,
+ 0x058f, 0x2325, 0x2323, 0x02b9, 0x02ba, 0x02bb, 0x05c1, 0x05c3,
+ 0x05c5, 0x02bc, 0x24ad, 0x05c7, 0x05c9, 0x07c7, 0x0995, 0x0997,
+ 0x0701, 0x24ab, 0x2327, 0x05cb, 0x232b, 0x2329, 0x2341, 0x2343,
+ 0x2345, 0x2347, 0x05cd, 0x234b, 0x2349, 0x2382, 0x234d, 0x234f,
+ 0x2351, 0x24b9, 0x02bd, 0x05cf, 0x24bf, 0x0a0d, 0x2353, 0x02bf,
+ 0x24bd, 0x2383, 0x24bb, 0x0641, 0x2355, 0x0643, 0x0645, 0x2357,
+ 0x2359, 0x3101, 0x0c80, 0x2e00, 0x2446, 0x2444, 0x244a, 0x2448,
+ 0x0800, 0x0942, 0x0944, 0x0804, 0x2288, 0x2486, 0x2484, 0x248a,
+ 0x2488, 0x22ae, 0x2498, 0x2496, 0x249c, 0x249a, 0x2300, 0x0a06,
+ 0x2302, 0x0a04, 0x0946, 0x07ce, 0x07ca, 0x07c8, 0x07cc, 0x2447,
+ 0x2445, 0x244b, 0x2449, 0x0801, 0x0943, 0x0945, 0x0805, 0x2289,
+ 0x2487, 0x2485, 0x248b, 0x2489, 0x22af, 0x2499, 0x2497, 0x249d,
+ 0x249b, 0x2301, 0x0a07, 0x2303, 0x0a05, 0x0947, 0x07cf, 0x07cb,
+ 0x07c9, 0x07cd, 0x2450, 0x244e, 0x2454, 0x2452, 0x2451, 0x244f,
+ 0x2455, 0x2453, 0x2294, 0x2296, 0x2295, 0x2297, 0x2304, 0x2306,
+ 0x2305, 0x2307, 0x2318, 0x2319, 0x231a, 0x231b, 0x232c, 0x232d,
+ 0x232e, 0x232f, 0x2400, 0x24a2, 0x24a0, 0x24a6, 0x24a4, 0x24a8,
+ 0x24a3, 0x24a1, 0x24a7, 0x24a5, 0x24a9, 0x24b0, 0x24ae, 0x24b4,
+ 0x24b2, 0x24b6, 0x24b1, 0x24af, 0x24b5, 0x24b3, 0x24b7, 0x0882,
+ 0x0880, 0x0881, 0x0802, 0x0803, 0x229c, 0x229d, 0x0a0a, 0x0a0b,
+ 0x0883, 0x0b40, 0x2c8a, 0x0c81, 0x2c89, 0x2c88, 0x2540, 0x2541,
+ 0x2d00, 0x2e07, 0x0d00, 0x2640, 0x2641, 0x2e80, 0x0d01, 0x26c8,
+ 0x26c9, 0x2f00, 0x2f84, 0x0d02, 0x2f83, 0x2f82, 0x0d40, 0x26d8,
+ 0x26d9, 0x3186, 0x0d04, 0x2740, 0x2741, 0x3100, 0x3086, 0x0d06,
+ 0x3085, 0x3084, 0x0d41, 0x2840, 0x3200, 0x0d07, 0x284f, 0x2850,
+ 0x3280, 0x2c84, 0x2e03, 0x2857, 0x0d42, 0x2c81, 0x2c80, 0x24c0,
+ 0x24c1, 0x2c86, 0x2c83, 0x28c0, 0x0d43, 0x25c0, 0x25c1, 0x2940,
+ 0x0d44, 0x26c0, 0x26c1, 0x2e05, 0x2e02, 0x29c0, 0x0d45, 0x2f05,
+ 0x2f04, 0x0d80, 0x26d0, 0x26d1, 0x2f80, 0x2a40, 0x0d82, 0x26e0,
+ 0x26e1, 0x3080, 0x3081, 0x2ac0, 0x0d83, 0x3004, 0x3003, 0x0d81,
+ 0x27c0, 0x27c1, 0x3082, 0x2b40, 0x0d84, 0x2847, 0x2848, 0x3184,
+ 0x3181, 0x2f06, 0x0d08, 0x2f81, 0x3005, 0x0d46, 0x3083, 0x3182,
+ 0x0e00, 0x0e01, 0x0f40, 0x1180, 0x1182, 0x0f03, 0x0f00, 0x11c0,
+ 0x0f01, 0x1140, 0x1202, 0x1204, 0x0f81, 0x1240, 0x0fc0, 0x1242,
+ 0x0f80, 0x1244, 0x1284, 0x0f82, 0x1286, 0x1288, 0x128a, 0x12c0,
+ 0x1282, 0x1181, 0x1183, 0x1043, 0x1040, 0x11c1, 0x1041, 0x1141,
+ 0x1203, 0x1205, 0x10c1, 0x1241, 0x1000, 0x1243, 0x10c0, 0x1245,
+ 0x1285, 0x10c2, 0x1287, 0x1289, 0x128b, 0x12c1, 0x1283, 0x1080,
+ 0x1100, 0x1101, 0x1200, 0x1201, 0x1280, 0x1281, 0x1340, 0x1341,
+ 0x1343, 0x1342, 0x1344, 0x13c2, 0x1400, 0x13c0, 0x1440, 0x1480,
+ 0x14c0, 0x1540, 0x1541, 0x1740, 0x1700, 0x1741, 0x17c0, 0x1800,
+ 0x1802, 0x1801, 0x1840, 0x1880, 0x1900, 0x18c0, 0x18c1, 0x1901,
+ 0x1940, 0x1942, 0x1941, 0x1980, 0x19c0, 0x19c2, 0x19c1, 0x1c80,
+ 0x1cc0, 0x1dc0, 0x1f80, 0x2000, 0x2002, 0x2004, 0x2006, 0x2008,
+ 0x2040, 0x2080, 0x2082, 0x20c0, 0x20c1, 0x2100, 0x22b8, 0x22b9,
+ 0x2310, 0x2311, 0x231c, 0x231d, 0x244c, 0x2456, 0x244d, 0x2457,
+ 0x248c, 0x248d, 0x249e, 0x249f, 0x2500, 0x2502, 0x2504, 0x2bc0,
+ 0x2501, 0x2503, 0x2505, 0x2bc1, 0x2bc2, 0x2bc3, 0x2bc4, 0x2bc5,
+ 0x2bc6, 0x2bc7, 0x2580, 0x2582, 0x2584, 0x2bc8, 0x2581, 0x2583,
+ 0x2585, 0x2bc9, 0x2bca, 0x2bcb, 0x2bcc, 0x2bcd, 0x2bce, 0x2bcf,
+ 0x2600, 0x2602, 0x2601, 0x2603, 0x2680, 0x2682, 0x2681, 0x2683,
+ 0x26c2, 0x26c4, 0x26c6, 0x2c00, 0x26c3, 0x26c5, 0x26c7, 0x2c01,
+ 0x2c02, 0x2c03, 0x2c04, 0x2c05, 0x2c06, 0x2c07, 0x26ca, 0x26cc,
+ 0x26ce, 0x2c08, 0x26cb, 0x26cd, 0x26cf, 0x2c09, 0x2c0a, 0x2c0b,
+ 0x2c0c, 0x2c0d, 0x2c0e, 0x2c0f, 0x26d2, 0x26d4, 0x26d6, 0x26d3,
+ 0x26d5, 0x26d7, 0x26da, 0x26dc, 0x26de, 0x26db, 0x26dd, 0x26df,
+ 0x2700, 0x2702, 0x2701, 0x2703, 0x2780, 0x2782, 0x2781, 0x2783,
+ 0x2800, 0x2802, 0x2804, 0x2801, 0x2803, 0x2805, 0x2842, 0x2844,
+ 0x2846, 0x2849, 0x284b, 0x284d, 0x2c40, 0x284a, 0x284c, 0x284e,
+ 0x2c41, 0x2c42, 0x2c43, 0x2c44, 0x2c45, 0x2c46, 0x2c47, 0x2851,
+ 0x2853, 0x2855, 0x2c48, 0x2852, 0x2854, 0x2856, 0x2c49, 0x2c4a,
+ 0x2c4b, 0x2c4c, 0x2c4d, 0x2c4e, 0x2c4f, 0x2c82, 0x2e01, 0x3180,
+ 0x2c87, 0x2f01, 0x2f02, 0x2f03, 0x2e06, 0x3185, 0x3000, 0x3001,
+ 0x3002, 0x4640, 0x4641, 0x4680, 0x46c0, 0x46c2, 0x46c1, 0x4700,
+ 0x4740, 0x4780, 0x47c0, 0x47c2, 0x4900, 0x4940, 0x4980, 0x4982,
+ 0x4a00, 0x49c2, 0x4a03, 0x4a04, 0x4a40, 0x4a41, 0x4a80, 0x4a81,
+ 0x4ac0, 0x4ac1, 0x4bc0, 0x4bc1, 0x4b00, 0x4b01, 0x4b40, 0x4b41,
+ 0x4bc2, 0x4bc3, 0x4b80, 0x4b81, 0x4b82, 0x4b83, 0x4c00, 0x4c01,
+ 0x4c02, 0x4c03, 0x5600, 0x5440, 0x5442, 0x5444, 0x5446, 0x5448,
+ 0x544a, 0x544c, 0x544e, 0x5450, 0x5452, 0x5454, 0x5456, 0x5480,
+ 0x5482, 0x5484, 0x54c0, 0x54c1, 0x5500, 0x5501, 0x5540, 0x5541,
+ 0x5580, 0x5581, 0x55c0, 0x55c1, 0x5680, 0x58c0, 0x5700, 0x5702,
+ 0x5704, 0x5706, 0x5708, 0x570a, 0x570c, 0x570e, 0x5710, 0x5712,
+ 0x5714, 0x5716, 0x5740, 0x5742, 0x5744, 0x5780, 0x5781, 0x57c0,
+ 0x57c1, 0x5800, 0x5801, 0x5840, 0x5841, 0x5880, 0x5881, 0x5900,
+ 0x5901, 0x5902, 0x5903, 0x5940, 0x8f40, 0x8f42, 0x8f80, 0x8fc0,
+ 0x8fc1, 0x9000, 0x9001, 0x9041, 0x9040, 0x9043, 0x9080, 0x9081,
+ 0x90c0,
+};
+
+typedef enum {
+ UNICODE_GC_Cn,
+ UNICODE_GC_Lu,
+ UNICODE_GC_Ll,
+ UNICODE_GC_Lt,
+ UNICODE_GC_Lm,
+ UNICODE_GC_Lo,
+ UNICODE_GC_Mn,
+ UNICODE_GC_Mc,
+ UNICODE_GC_Me,
+ UNICODE_GC_Nd,
+ UNICODE_GC_Nl,
+ UNICODE_GC_No,
+ UNICODE_GC_Sm,
+ UNICODE_GC_Sc,
+ UNICODE_GC_Sk,
+ UNICODE_GC_So,
+ UNICODE_GC_Pc,
+ UNICODE_GC_Pd,
+ UNICODE_GC_Ps,
+ UNICODE_GC_Pe,
+ UNICODE_GC_Pi,
+ UNICODE_GC_Pf,
+ UNICODE_GC_Po,
+ UNICODE_GC_Zs,
+ UNICODE_GC_Zl,
+ UNICODE_GC_Zp,
+ UNICODE_GC_Cc,
+ UNICODE_GC_Cf,
+ UNICODE_GC_Cs,
+ UNICODE_GC_Co,
+ UNICODE_GC_LC,
+ UNICODE_GC_L,
+ UNICODE_GC_M,
+ UNICODE_GC_N,
+ UNICODE_GC_S,
+ UNICODE_GC_P,
+ UNICODE_GC_Z,
+ UNICODE_GC_C,
+ UNICODE_GC_COUNT,
+} UnicodeGCEnum;
+
+static const char unicode_gc_name_table[] =
+ "Cn,Unassigned" "\0"
+ "Lu,Uppercase_Letter" "\0"
+ "Ll,Lowercase_Letter" "\0"
+ "Lt,Titlecase_Letter" "\0"
+ "Lm,Modifier_Letter" "\0"
+ "Lo,Other_Letter" "\0"
+ "Mn,Nonspacing_Mark" "\0"
+ "Mc,Spacing_Mark" "\0"
+ "Me,Enclosing_Mark" "\0"
+ "Nd,Decimal_Number,digit" "\0"
+ "Nl,Letter_Number" "\0"
+ "No,Other_Number" "\0"
+ "Sm,Math_Symbol" "\0"
+ "Sc,Currency_Symbol" "\0"
+ "Sk,Modifier_Symbol" "\0"
+ "So,Other_Symbol" "\0"
+ "Pc,Connector_Punctuation" "\0"
+ "Pd,Dash_Punctuation" "\0"
+ "Ps,Open_Punctuation" "\0"
+ "Pe,Close_Punctuation" "\0"
+ "Pi,Initial_Punctuation" "\0"
+ "Pf,Final_Punctuation" "\0"
+ "Po,Other_Punctuation" "\0"
+ "Zs,Space_Separator" "\0"
+ "Zl,Line_Separator" "\0"
+ "Zp,Paragraph_Separator" "\0"
+ "Cc,Control,cntrl" "\0"
+ "Cf,Format" "\0"
+ "Cs,Surrogate" "\0"
+ "Co,Private_Use" "\0"
+ "LC,Cased_Letter" "\0"
+ "L,Letter" "\0"
+ "M,Mark,Combining_Mark" "\0"
+ "N,Number" "\0"
+ "S,Symbol" "\0"
+ "P,Punctuation,punct" "\0"
+ "Z,Separator" "\0"
+ "C,Other" "\0"
+;
+
+static const uint8_t unicode_gc_table[3948] = {
+ 0xfa, 0x18, 0x17, 0x56, 0x0d, 0x56, 0x12, 0x13,
+ 0x16, 0x0c, 0x16, 0x11, 0x36, 0xe9, 0x02, 0x36,
+ 0x4c, 0x36, 0xe1, 0x12, 0x12, 0x16, 0x13, 0x0e,
+ 0x10, 0x0e, 0xe2, 0x12, 0x12, 0x0c, 0x13, 0x0c,
+ 0xfa, 0x19, 0x17, 0x16, 0x6d, 0x0f, 0x16, 0x0e,
+ 0x0f, 0x05, 0x14, 0x0c, 0x1b, 0x0f, 0x0e, 0x0f,
+ 0x0c, 0x2b, 0x0e, 0x02, 0x36, 0x0e, 0x0b, 0x05,
+ 0x15, 0x4b, 0x16, 0xe1, 0x0f, 0x0c, 0xc1, 0xe2,
+ 0x10, 0x0c, 0xe2, 0x00, 0xff, 0x30, 0x02, 0xff,
+ 0x08, 0x02, 0xff, 0x27, 0xbf, 0x22, 0x21, 0x02,
+ 0x5f, 0x5f, 0x21, 0x22, 0x61, 0x02, 0x21, 0x02,
+ 0x41, 0x42, 0x21, 0x02, 0x21, 0x02, 0x9f, 0x7f,
+ 0x02, 0x5f, 0x5f, 0x21, 0x02, 0x5f, 0x3f, 0x02,
+ 0x05, 0x3f, 0x22, 0x65, 0x01, 0x03, 0x02, 0x01,
+ 0x03, 0x02, 0x01, 0x03, 0x02, 0xff, 0x08, 0x02,
+ 0xff, 0x0a, 0x02, 0x01, 0x03, 0x02, 0x5f, 0x21,
+ 0x02, 0xff, 0x32, 0xa2, 0x21, 0x02, 0x21, 0x22,
+ 0x5f, 0x41, 0x02, 0xff, 0x00, 0xe2, 0x3c, 0x05,
+ 0xe2, 0x13, 0xe4, 0x0a, 0x6e, 0xe4, 0x04, 0xee,
+ 0x06, 0x84, 0xce, 0x04, 0x0e, 0x04, 0xee, 0x09,
+ 0xe6, 0x68, 0x7f, 0x04, 0x0e, 0x3f, 0x20, 0x04,
+ 0x42, 0x16, 0x01, 0x60, 0x2e, 0x01, 0x16, 0x41,
+ 0x00, 0x01, 0x00, 0x21, 0x02, 0xe1, 0x09, 0x00,
+ 0xe1, 0x01, 0xe2, 0x1b, 0x3f, 0x02, 0x41, 0x42,
+ 0xff, 0x10, 0x62, 0x3f, 0x0c, 0x5f, 0x3f, 0x02,
+ 0xe1, 0x2b, 0xe2, 0x28, 0xff, 0x1a, 0x0f, 0x86,
+ 0x28, 0xff, 0x2f, 0xff, 0x06, 0x02, 0xff, 0x58,
+ 0x00, 0xe1, 0x1e, 0x20, 0x04, 0xb6, 0xe2, 0x21,
+ 0x16, 0x11, 0x20, 0x2f, 0x0d, 0x00, 0xe6, 0x25,
+ 0x11, 0x06, 0x16, 0x26, 0x16, 0x26, 0x16, 0x06,
+ 0xe0, 0x00, 0xe5, 0x13, 0x60, 0x65, 0x36, 0xe0,
+ 0x03, 0xbb, 0x4c, 0x36, 0x0d, 0x36, 0x2f, 0xe6,
+ 0x03, 0x16, 0x1b, 0x56, 0xe5, 0x18, 0x04, 0xe5,
+ 0x02, 0xe6, 0x0d, 0xe9, 0x02, 0x76, 0x25, 0x06,
+ 0xe5, 0x5b, 0x16, 0x05, 0xc6, 0x1b, 0x0f, 0xa6,
+ 0x24, 0x26, 0x0f, 0x66, 0x25, 0xe9, 0x02, 0x45,
+ 0x2f, 0x05, 0xf6, 0x06, 0x00, 0x1b, 0x05, 0x06,
+ 0xe5, 0x16, 0xe6, 0x13, 0x20, 0xe5, 0x51, 0xe6,
+ 0x03, 0x05, 0xe0, 0x06, 0xe9, 0x02, 0xe5, 0x19,
+ 0xe6, 0x01, 0x24, 0x0f, 0x56, 0x04, 0x20, 0x06,
+ 0x2d, 0xe5, 0x0e, 0x66, 0x04, 0xe6, 0x01, 0x04,
+ 0x46, 0x04, 0x86, 0x20, 0xf6, 0x07, 0x00, 0xe5,
+ 0x11, 0x46, 0x20, 0x16, 0x00, 0xe5, 0x03, 0x80,
+ 0xe5, 0x10, 0x0e, 0xa5, 0x00, 0x3b, 0xa0, 0xe6,
+ 0x00, 0xe5, 0x21, 0x04, 0xe6, 0x10, 0x1b, 0xe6,
+ 0x18, 0x07, 0xe5, 0x2e, 0x06, 0x07, 0x06, 0x05,
+ 0x47, 0xe6, 0x00, 0x67, 0x06, 0x27, 0x05, 0xc6,
+ 0xe5, 0x02, 0x26, 0x36, 0xe9, 0x02, 0x16, 0x04,
+ 0xe5, 0x07, 0x06, 0x27, 0x00, 0xe5, 0x00, 0x20,
+ 0x25, 0x20, 0xe5, 0x0e, 0x00, 0xc5, 0x00, 0x05,
+ 0x40, 0x65, 0x20, 0x06, 0x05, 0x47, 0x66, 0x20,
+ 0x27, 0x20, 0x27, 0x06, 0x05, 0xe0, 0x00, 0x07,
+ 0x60, 0x25, 0x00, 0x45, 0x26, 0x20, 0xe9, 0x02,
+ 0x25, 0x2d, 0xab, 0x0f, 0x0d, 0x05, 0x16, 0x06,
+ 0x20, 0x26, 0x07, 0x00, 0xa5, 0x60, 0x25, 0x20,
+ 0xe5, 0x0e, 0x00, 0xc5, 0x00, 0x25, 0x00, 0x25,
+ 0x00, 0x25, 0x20, 0x06, 0x00, 0x47, 0x26, 0x60,
+ 0x26, 0x20, 0x46, 0x40, 0x06, 0xc0, 0x65, 0x00,
+ 0x05, 0xc0, 0xe9, 0x02, 0x26, 0x45, 0x06, 0x16,
+ 0xe0, 0x02, 0x26, 0x07, 0x00, 0xe5, 0x01, 0x00,
+ 0x45, 0x00, 0xe5, 0x0e, 0x00, 0xc5, 0x00, 0x25,
+ 0x00, 0x85, 0x20, 0x06, 0x05, 0x47, 0x86, 0x00,
+ 0x26, 0x07, 0x00, 0x27, 0x06, 0x20, 0x05, 0xe0,
+ 0x07, 0x25, 0x26, 0x20, 0xe9, 0x02, 0x16, 0x0d,
+ 0xc0, 0x05, 0xa6, 0x00, 0x06, 0x27, 0x00, 0xe5,
+ 0x00, 0x20, 0x25, 0x20, 0xe5, 0x0e, 0x00, 0xc5,
+ 0x00, 0x25, 0x00, 0x85, 0x20, 0x06, 0x05, 0x07,
+ 0x06, 0x07, 0x66, 0x20, 0x27, 0x20, 0x27, 0x06,
+ 0xc0, 0x26, 0x07, 0x60, 0x25, 0x00, 0x45, 0x26,
+ 0x20, 0xe9, 0x02, 0x0f, 0x05, 0xab, 0xe0, 0x02,
+ 0x06, 0x05, 0x00, 0xa5, 0x40, 0x45, 0x00, 0x65,
+ 0x40, 0x25, 0x00, 0x05, 0x00, 0x25, 0x40, 0x25,
+ 0x40, 0x45, 0x40, 0xe5, 0x04, 0x60, 0x27, 0x06,
+ 0x27, 0x40, 0x47, 0x00, 0x47, 0x06, 0x20, 0x05,
+ 0xa0, 0x07, 0xe0, 0x06, 0xe9, 0x02, 0x4b, 0xaf,
+ 0x0d, 0x0f, 0x80, 0x06, 0x47, 0x06, 0xe5, 0x00,
+ 0x00, 0x45, 0x00, 0xe5, 0x0f, 0x00, 0xe5, 0x08,
+ 0x20, 0x06, 0x05, 0x46, 0x67, 0x00, 0x46, 0x00,
+ 0x66, 0xc0, 0x26, 0x00, 0x45, 0x20, 0x05, 0x20,
+ 0x25, 0x26, 0x20, 0xe9, 0x02, 0xc0, 0x16, 0xcb,
+ 0x0f, 0x05, 0x06, 0x27, 0x16, 0xe5, 0x00, 0x00,
+ 0x45, 0x00, 0xe5, 0x0f, 0x00, 0xe5, 0x02, 0x00,
+ 0x85, 0x20, 0x06, 0x05, 0x07, 0x06, 0x87, 0x00,
+ 0x06, 0x27, 0x00, 0x27, 0x26, 0xc0, 0x27, 0xa0,
+ 0x25, 0x00, 0x25, 0x26, 0x20, 0xe9, 0x02, 0x00,
+ 0x25, 0x07, 0xe0, 0x04, 0x26, 0x27, 0xe5, 0x01,
+ 0x00, 0x45, 0x00, 0xe5, 0x21, 0x26, 0x05, 0x47,
+ 0x66, 0x00, 0x47, 0x00, 0x47, 0x06, 0x05, 0x0f,
+ 0x60, 0x45, 0x07, 0xcb, 0x45, 0x26, 0x20, 0xe9,
+ 0x02, 0xeb, 0x01, 0x0f, 0xa5, 0x00, 0x06, 0x27,
+ 0x00, 0xe5, 0x0a, 0x40, 0xe5, 0x10, 0x00, 0xe5,
+ 0x01, 0x00, 0x05, 0x20, 0xc5, 0x40, 0x06, 0x60,
+ 0x47, 0x46, 0x00, 0x06, 0x00, 0xe7, 0x00, 0xa0,
+ 0xe9, 0x02, 0x20, 0x27, 0x16, 0xe0, 0x04, 0xe5,
+ 0x28, 0x06, 0x25, 0xc6, 0x60, 0x0d, 0xa5, 0x04,
+ 0xe6, 0x00, 0x16, 0xe9, 0x02, 0x36, 0xe0, 0x1d,
+ 0x25, 0x00, 0x05, 0x00, 0x85, 0x00, 0xe5, 0x10,
+ 0x00, 0x05, 0x00, 0xe5, 0x02, 0x06, 0x25, 0xe6,
+ 0x01, 0x05, 0x20, 0x85, 0x00, 0x04, 0x00, 0xc6,
+ 0x00, 0xe9, 0x02, 0x20, 0x65, 0xe0, 0x18, 0x05,
+ 0x4f, 0xf6, 0x07, 0x0f, 0x16, 0x4f, 0x26, 0xaf,
+ 0xe9, 0x02, 0xeb, 0x02, 0x0f, 0x06, 0x0f, 0x06,
+ 0x0f, 0x06, 0x12, 0x13, 0x12, 0x13, 0x27, 0xe5,
+ 0x00, 0x00, 0xe5, 0x1c, 0x60, 0xe6, 0x06, 0x07,
+ 0x86, 0x16, 0x26, 0x85, 0xe6, 0x03, 0x00, 0xe6,
+ 0x1c, 0x00, 0xef, 0x00, 0x06, 0xaf, 0x00, 0x2f,
+ 0x96, 0x6f, 0x36, 0xe0, 0x1d, 0xe5, 0x23, 0x27,
+ 0x66, 0x07, 0xa6, 0x07, 0x26, 0x27, 0x26, 0x05,
+ 0xe9, 0x02, 0xb6, 0xa5, 0x27, 0x26, 0x65, 0x46,
+ 0x05, 0x47, 0x25, 0xc7, 0x45, 0x66, 0xe5, 0x05,
+ 0x06, 0x27, 0x26, 0xa7, 0x06, 0x05, 0x07, 0xe9,
+ 0x02, 0x47, 0x06, 0x2f, 0xe1, 0x1e, 0x00, 0x01,
+ 0x80, 0x01, 0x20, 0xe2, 0x23, 0x16, 0x04, 0x42,
+ 0xe5, 0x80, 0xc1, 0x00, 0x65, 0x20, 0xc5, 0x00,
+ 0x05, 0x00, 0x65, 0x20, 0xe5, 0x21, 0x00, 0x65,
+ 0x20, 0xe5, 0x19, 0x00, 0x65, 0x20, 0xc5, 0x00,
+ 0x05, 0x00, 0x65, 0x20, 0xe5, 0x07, 0x00, 0xe5,
+ 0x31, 0x00, 0x65, 0x20, 0xe5, 0x3b, 0x20, 0x46,
+ 0xf6, 0x01, 0xeb, 0x0c, 0x40, 0xe5, 0x08, 0xef,
+ 0x02, 0xa0, 0xe1, 0x4e, 0x20, 0xa2, 0x20, 0x11,
+ 0xe5, 0x81, 0xe4, 0x0f, 0x16, 0xe5, 0x09, 0x17,
+ 0xe5, 0x12, 0x12, 0x13, 0x40, 0xe5, 0x43, 0x56,
+ 0x4a, 0xe5, 0x00, 0xc0, 0xe5, 0x0a, 0x46, 0x07,
+ 0xe0, 0x01, 0xe5, 0x0b, 0x26, 0x07, 0x36, 0xe0,
+ 0x01, 0xe5, 0x0a, 0x26, 0xe0, 0x04, 0xe5, 0x05,
+ 0x00, 0x45, 0x00, 0x26, 0xe0, 0x04, 0xe5, 0x2c,
+ 0x26, 0x07, 0xc6, 0xe7, 0x00, 0x06, 0x27, 0xe6,
+ 0x03, 0x56, 0x04, 0x56, 0x0d, 0x05, 0x06, 0x20,
+ 0xe9, 0x02, 0xa0, 0xeb, 0x02, 0xa0, 0xb6, 0x11,
+ 0x76, 0x46, 0x1b, 0x06, 0xe9, 0x02, 0xa0, 0xe5,
+ 0x1b, 0x04, 0xe5, 0x2d, 0xc0, 0x85, 0x26, 0xe5,
+ 0x1a, 0x06, 0x05, 0x80, 0xe5, 0x3e, 0xe0, 0x02,
+ 0xe5, 0x17, 0x00, 0x46, 0x67, 0x26, 0x47, 0x60,
+ 0x27, 0x06, 0xa7, 0x46, 0x60, 0x0f, 0x40, 0x36,
+ 0xe9, 0x02, 0xe5, 0x16, 0x20, 0x85, 0xe0, 0x03,
+ 0xe5, 0x24, 0x60, 0xe5, 0x12, 0xa0, 0xe9, 0x02,
+ 0x0b, 0x40, 0xef, 0x1a, 0xe5, 0x0f, 0x26, 0x27,
+ 0x06, 0x20, 0x36, 0xe5, 0x2d, 0x07, 0x06, 0x07,
+ 0xc6, 0x00, 0x06, 0x07, 0x06, 0x27, 0xe6, 0x00,
+ 0xa7, 0xe6, 0x02, 0x20, 0x06, 0xe9, 0x02, 0xa0,
+ 0xe9, 0x02, 0xa0, 0xd6, 0x04, 0xb6, 0x20, 0xe6,
+ 0x06, 0x08, 0xe6, 0x08, 0xe0, 0x29, 0x66, 0x07,
+ 0xe5, 0x27, 0x06, 0x07, 0x86, 0x07, 0x06, 0x87,
+ 0x06, 0x27, 0xe5, 0x00, 0x40, 0xe9, 0x02, 0xd6,
+ 0xef, 0x02, 0xe6, 0x01, 0xef, 0x01, 0x36, 0x00,
+ 0x26, 0x07, 0xe5, 0x16, 0x07, 0x66, 0x27, 0x26,
+ 0x07, 0x46, 0x25, 0xe9, 0x02, 0xe5, 0x24, 0x06,
+ 0x07, 0x26, 0x47, 0x06, 0x07, 0x46, 0x27, 0xe0,
+ 0x00, 0x76, 0xe5, 0x1c, 0xe7, 0x00, 0xe6, 0x00,
+ 0x27, 0x26, 0x40, 0x96, 0xe9, 0x02, 0x40, 0x45,
+ 0xe9, 0x02, 0xe5, 0x16, 0xa4, 0x36, 0xe2, 0x01,
+ 0xc0, 0xe1, 0x23, 0x20, 0x41, 0xf6, 0x00, 0xe0,
+ 0x00, 0x46, 0x16, 0xe6, 0x05, 0x07, 0xc6, 0x65,
+ 0x06, 0xa5, 0x06, 0x25, 0x07, 0x26, 0x05, 0x80,
+ 0xe2, 0x24, 0xe4, 0x37, 0xe2, 0x05, 0x04, 0xe2,
+ 0x1a, 0xe4, 0x1d, 0xe6, 0x38, 0xff, 0x80, 0x0e,
+ 0xe2, 0x00, 0xff, 0x5a, 0xe2, 0x00, 0xe1, 0x00,
+ 0xa2, 0x20, 0xa1, 0x20, 0xe2, 0x00, 0xe1, 0x00,
+ 0xe2, 0x00, 0xe1, 0x00, 0xa2, 0x20, 0xa1, 0x20,
+ 0xe2, 0x00, 0x00, 0x01, 0x00, 0x01, 0x00, 0x01,
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+ 0xe2, 0x00, 0xe3, 0x00, 0x82, 0x00, 0x22, 0x61,
+ 0x03, 0x0e, 0x02, 0x4e, 0x42, 0x00, 0x22, 0x61,
+ 0x03, 0x4e, 0x62, 0x20, 0x22, 0x61, 0x00, 0x4e,
+ 0xe2, 0x00, 0x81, 0x4e, 0x20, 0x42, 0x00, 0x22,
+ 0x61, 0x03, 0x2e, 0x00, 0xf7, 0x03, 0x9b, 0xb1,
+ 0x36, 0x14, 0x15, 0x12, 0x34, 0x15, 0x12, 0x14,
+ 0xf6, 0x00, 0x18, 0x19, 0x9b, 0x17, 0xf6, 0x01,
+ 0x14, 0x15, 0x76, 0x30, 0x56, 0x0c, 0x12, 0x13,
+ 0xf6, 0x03, 0x0c, 0x16, 0x10, 0xf6, 0x02, 0x17,
+ 0x9b, 0x00, 0xfb, 0x02, 0x0b, 0x04, 0x20, 0xab,
+ 0x4c, 0x12, 0x13, 0x04, 0xeb, 0x02, 0x4c, 0x12,
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+ 0x81, 0xaf, 0x01, 0x0f, 0x01, 0x0f, 0x01, 0x0f,
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+ 0x22, 0x21, 0x8c, 0x3f, 0x42, 0x0f, 0x0c, 0x2f,
+ 0x02, 0x0f, 0xeb, 0x08, 0xea, 0x1b, 0x3f, 0x6a,
+ 0x0b, 0x2f, 0x60, 0x8c, 0x8f, 0x2c, 0x6f, 0x0c,
+ 0x2f, 0x0c, 0x2f, 0x0c, 0xcf, 0x0c, 0xef, 0x17,
+ 0x2c, 0x2f, 0x0c, 0x0f, 0x0c, 0xef, 0x17, 0xec,
+ 0x80, 0x84, 0xef, 0x00, 0x12, 0x13, 0x12, 0x13,
+ 0xef, 0x0c, 0x2c, 0xcf, 0x12, 0x13, 0xef, 0x49,
+ 0x0c, 0xef, 0x16, 0xec, 0x11, 0xef, 0x20, 0xac,
+ 0xef, 0x3d, 0xe0, 0x11, 0xef, 0x03, 0xe0, 0x0d,
+ 0xeb, 0x34, 0xef, 0x46, 0xeb, 0x0e, 0xef, 0x80,
+ 0x2f, 0x0c, 0xef, 0x01, 0x0c, 0xef, 0x2e, 0xec,
+ 0x00, 0xef, 0x67, 0x0c, 0xef, 0x80, 0x70, 0x12,
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+ 0x24, 0x8c, 0x12, 0x13, 0xec, 0x17, 0x12, 0x13,
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+ 0xec, 0x08, 0xef, 0x80, 0x78, 0xec, 0x7b, 0x12,
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+ 0xef, 0x1f, 0x20, 0xef, 0x18, 0x00, 0xef, 0x61,
+ 0xe1, 0x28, 0xe2, 0x28, 0x5f, 0x21, 0x22, 0xdf,
+ 0x41, 0x02, 0x3f, 0x02, 0x3f, 0x82, 0x24, 0x41,
+ 0x02, 0xff, 0x5a, 0x02, 0xaf, 0x7f, 0x46, 0x3f,
+ 0x80, 0x76, 0x0b, 0x36, 0xe2, 0x1e, 0x00, 0x02,
+ 0x80, 0x02, 0x20, 0xe5, 0x30, 0xc0, 0x04, 0x16,
+ 0xe0, 0x06, 0x06, 0xe5, 0x0f, 0xe0, 0x01, 0xc5,
+ 0x00, 0xc5, 0x00, 0xc5, 0x00, 0xc5, 0x00, 0xc5,
+ 0x00, 0xc5, 0x00, 0xc5, 0x00, 0xc5, 0x00, 0xe6,
+ 0x18, 0x36, 0x14, 0x15, 0x14, 0x15, 0x56, 0x14,
+ 0x15, 0x16, 0x14, 0x15, 0xf6, 0x01, 0x11, 0x36,
+ 0x11, 0x16, 0x14, 0x15, 0x36, 0x14, 0x15, 0x12,
+ 0x13, 0x12, 0x13, 0x12, 0x13, 0x12, 0x13, 0x96,
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+ 0x12, 0x00, 0xef, 0x51, 0xe0, 0x04, 0xef, 0x80,
+ 0x4e, 0xe0, 0x12, 0xef, 0x04, 0x60, 0x17, 0x56,
+ 0x0f, 0x04, 0x05, 0x0a, 0x12, 0x13, 0x12, 0x13,
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+ 0x12, 0x33, 0x0f, 0xea, 0x01, 0x66, 0x27, 0x11,
+ 0x84, 0x2f, 0x4a, 0x04, 0x05, 0x16, 0x2f, 0x00,
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+ 0xe5, 0x18, 0xef, 0x1c, 0xe0, 0x04, 0xe5, 0x08,
+ 0xef, 0x17, 0x00, 0xeb, 0x02, 0xef, 0x16, 0xeb,
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+ 0x99, 0x38, 0xef, 0x38, 0xe5, 0xc0, 0x11, 0x8d,
+ 0x04, 0xe5, 0x83, 0xef, 0x40, 0xef, 0x2f, 0xe0,
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+ 0x0c, 0xff, 0x26, 0x05, 0x06, 0x48, 0x16, 0xe6,
+ 0x02, 0x16, 0x04, 0xff, 0x14, 0x24, 0x26, 0xe5,
+ 0x3e, 0xea, 0x02, 0x26, 0xb6, 0xe0, 0x00, 0xee,
+ 0x0f, 0xe4, 0x01, 0x2e, 0xff, 0x06, 0x22, 0xff,
+ 0x36, 0x04, 0xe2, 0x00, 0x9f, 0xff, 0x02, 0x04,
+ 0x2e, 0x7f, 0x05, 0x7f, 0x22, 0xff, 0x0d, 0x61,
+ 0x02, 0x81, 0x02, 0xff, 0x07, 0x41, 0x02, 0x3f,
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+ 0x10, 0x44, 0x3f, 0x05, 0x24, 0x02, 0xc5, 0x06,
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+ 0x07, 0x6f, 0x06, 0x40, 0xab, 0x2f, 0x0d, 0x0f,
+ 0xa0, 0xe5, 0x2c, 0x76, 0xe0, 0x00, 0x27, 0xe5,
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+ 0x02, 0xa0, 0xe6, 0x0a, 0xa5, 0x56, 0x05, 0x16,
+ 0x25, 0x06, 0xe9, 0x02, 0xe5, 0x14, 0xe6, 0x00,
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+ 0x16, 0xe5, 0x15, 0x40, 0x46, 0x07, 0xe5, 0x27,
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+ 0x46, 0x25, 0x26, 0x85, 0x26, 0x05, 0x06, 0x05,
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+ 0x02, 0xa5, 0x20, 0xa5, 0x20, 0xa5, 0xe0, 0x01,
+ 0xc5, 0x00, 0xc5, 0x00, 0xe2, 0x23, 0x0e, 0x64,
+ 0xe2, 0x01, 0x04, 0x2e, 0x60, 0xe2, 0x48, 0xe5,
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+ 0x06, 0x20, 0xe9, 0x02, 0xa0, 0xe5, 0xab, 0x1c,
+ 0xe0, 0x04, 0xe5, 0x0f, 0x60, 0xe5, 0x29, 0x60,
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+ 0xe6, 0x20, 0xe5, 0x62, 0xe0, 0x1e, 0xc2, 0xe0,
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+ 0x08, 0xe5, 0x80, 0xe3, 0x13, 0x12, 0xef, 0x08,
+ 0xe5, 0x38, 0x20, 0xe5, 0x2e, 0xc0, 0x0f, 0xe0,
+ 0x18, 0xe5, 0x04, 0x0d, 0x4f, 0xe6, 0x08, 0xd6,
+ 0x12, 0x13, 0x16, 0xa0, 0xe6, 0x08, 0x16, 0x31,
+ 0x30, 0x12, 0x13, 0x12, 0x13, 0x12, 0x13, 0x12,
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+ 0x76, 0x11, 0x12, 0x13, 0x12, 0x13, 0x12, 0x13,
+ 0x56, 0x0c, 0x11, 0x4c, 0x00, 0x16, 0x0d, 0x36,
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+ 0x56, 0x0d, 0x56, 0x12, 0x13, 0x16, 0x0c, 0x16,
+ 0x11, 0x36, 0xe9, 0x02, 0x36, 0x4c, 0x36, 0xe1,
+ 0x12, 0x12, 0x16, 0x13, 0x0e, 0x10, 0x0e, 0xe2,
+ 0x12, 0x12, 0x0c, 0x13, 0x0c, 0x12, 0x13, 0x16,
+ 0x12, 0x13, 0x36, 0xe5, 0x02, 0x04, 0xe5, 0x25,
+ 0x24, 0xe5, 0x17, 0x40, 0xa5, 0x20, 0xa5, 0x20,
+ 0xa5, 0x20, 0x45, 0x40, 0x2d, 0x0c, 0x0e, 0x0f,
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+ 0x60, 0xeb, 0x25, 0x40, 0xef, 0x01, 0xea, 0x2d,
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+ 0x40, 0x0f, 0xe0, 0x27, 0xef, 0x25, 0x06, 0xe0,
+ 0x7a, 0xe5, 0x15, 0x40, 0xe5, 0x29, 0xe0, 0x07,
+ 0x06, 0xeb, 0x13, 0x60, 0xe5, 0x18, 0x6b, 0xe0,
+ 0x01, 0xe5, 0x0c, 0x0a, 0xe5, 0x00, 0x0a, 0x80,
+ 0xe5, 0x1e, 0x86, 0x80, 0xe5, 0x16, 0x00, 0x16,
+ 0xe5, 0x1c, 0x60, 0xe5, 0x00, 0x16, 0x8a, 0xe0,
+ 0x22, 0xe1, 0x20, 0xe2, 0x20, 0xe5, 0x46, 0x20,
+ 0xe9, 0x02, 0xa0, 0xe1, 0x1c, 0x60, 0xe2, 0x1c,
+ 0x60, 0xe5, 0x20, 0xe0, 0x00, 0xe5, 0x2c, 0xe0,
+ 0x03, 0x16, 0xe1, 0x03, 0x00, 0xe1, 0x07, 0x00,
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+ 0x07, 0x00, 0xc2, 0x00, 0x22, 0xe0, 0x3b, 0xe5,
+ 0x80, 0xaf, 0xe0, 0x01, 0xe5, 0x0e, 0xe0, 0x02,
+ 0xe5, 0x00, 0xe0, 0x10, 0xa4, 0x00, 0xe4, 0x22,
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+ 0x2f, 0xcb, 0xe5, 0x17, 0xe0, 0x00, 0xeb, 0x01,
+ 0xe0, 0x28, 0xe5, 0x0b, 0x00, 0x25, 0x80, 0x8b,
+ 0xe5, 0x0e, 0xab, 0x40, 0x16, 0xe5, 0x12, 0x80,
+ 0x16, 0xe0, 0x38, 0xe5, 0x30, 0x60, 0x2b, 0x25,
+ 0xeb, 0x08, 0x20, 0xeb, 0x26, 0x05, 0x46, 0x00,
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+ 0x15, 0x20, 0x46, 0x60, 0x06, 0xeb, 0x01, 0xc0,
+ 0xf6, 0x01, 0xc0, 0xe5, 0x15, 0x2b, 0x16, 0xe5,
+ 0x15, 0x4b, 0xe0, 0x18, 0xe5, 0x00, 0x0f, 0xe5,
+ 0x14, 0x26, 0x60, 0x8b, 0xd6, 0xe0, 0x01, 0xe5,
+ 0x2e, 0x40, 0xd6, 0xe5, 0x0e, 0x20, 0xeb, 0x00,
+ 0xe5, 0x0b, 0x80, 0xeb, 0x00, 0xe5, 0x0a, 0xc0,
+ 0x76, 0xe0, 0x04, 0xcb, 0xe0, 0x48, 0xe5, 0x41,
+ 0xe0, 0x2f, 0xe1, 0x2b, 0xe0, 0x05, 0xe2, 0x2b,
+ 0xc0, 0xab, 0xe5, 0x1c, 0x66, 0xe0, 0x00, 0xe9,
+ 0x02, 0xe0, 0x80, 0x9e, 0xeb, 0x17, 0x00, 0xe5,
+ 0x22, 0x00, 0x26, 0x11, 0x20, 0x25, 0xe0, 0x43,
+ 0x46, 0xe5, 0x15, 0xeb, 0x02, 0x05, 0xe0, 0x00,
+ 0xe5, 0x0e, 0xe6, 0x03, 0x6b, 0x96, 0xe0, 0x0e,
+ 0xe5, 0x0a, 0x66, 0x76, 0xe0, 0x1e, 0xe5, 0x0d,
+ 0xcb, 0xe0, 0x0c, 0xe5, 0x0f, 0xe0, 0x01, 0x07,
+ 0x06, 0x07, 0xe5, 0x2d, 0xe6, 0x07, 0xd6, 0x60,
+ 0xeb, 0x0c, 0xe9, 0x02, 0x06, 0x25, 0x26, 0x05,
+ 0xe0, 0x01, 0x46, 0x07, 0xe5, 0x25, 0x47, 0x66,
+ 0x27, 0x26, 0x36, 0x1b, 0x76, 0x06, 0xe0, 0x02,
+ 0x1b, 0x20, 0xe5, 0x11, 0xc0, 0xe9, 0x02, 0xa0,
+ 0x46, 0xe5, 0x1c, 0x86, 0x07, 0xe6, 0x00, 0x00,
+ 0xe9, 0x02, 0x76, 0x05, 0x27, 0x05, 0xe0, 0x00,
+ 0xe5, 0x1b, 0x06, 0x36, 0x05, 0xe0, 0x01, 0x26,
+ 0x07, 0xe5, 0x28, 0x47, 0xe6, 0x01, 0x27, 0x65,
+ 0x76, 0x66, 0x16, 0x07, 0x06, 0xe9, 0x02, 0x05,
+ 0x16, 0x05, 0x56, 0x00, 0xeb, 0x0c, 0xe0, 0x03,
+ 0xe5, 0x0a, 0x00, 0xe5, 0x11, 0x47, 0x46, 0x27,
+ 0x06, 0x07, 0x26, 0xb6, 0x06, 0x25, 0x06, 0xe0,
+ 0x36, 0xc5, 0x00, 0x05, 0x00, 0x65, 0x00, 0xe5,
+ 0x07, 0x00, 0xe5, 0x02, 0x16, 0xa0, 0xe5, 0x27,
+ 0x06, 0x47, 0xe6, 0x00, 0x80, 0xe9, 0x02, 0xa0,
+ 0x26, 0x27, 0x00, 0xe5, 0x00, 0x20, 0x25, 0x20,
+ 0xe5, 0x0e, 0x00, 0xc5, 0x00, 0x25, 0x00, 0x85,
+ 0x00, 0x26, 0x05, 0x27, 0x06, 0x67, 0x20, 0x27,
+ 0x20, 0x47, 0x20, 0x05, 0xa0, 0x07, 0x80, 0x85,
+ 0x27, 0x20, 0xc6, 0x40, 0x86, 0xe0, 0x80, 0x03,
+ 0xe5, 0x2d, 0x47, 0xe6, 0x00, 0x27, 0x46, 0x07,
+ 0x06, 0x65, 0x96, 0xe9, 0x02, 0x36, 0x00, 0x16,
+ 0x06, 0x45, 0xe0, 0x16, 0xe5, 0x28, 0x47, 0xa6,
+ 0x07, 0x06, 0x67, 0x26, 0x07, 0x26, 0x25, 0x16,
+ 0x05, 0xe0, 0x00, 0xe9, 0x02, 0xe0, 0x80, 0x1e,
+ 0xe5, 0x27, 0x47, 0x66, 0x20, 0x67, 0x26, 0x07,
+ 0x26, 0xf6, 0x0f, 0x65, 0x26, 0xe0, 0x1a, 0xe5,
+ 0x28, 0x47, 0xe6, 0x00, 0x27, 0x06, 0x07, 0x26,
+ 0x56, 0x05, 0xe0, 0x03, 0xe9, 0x02, 0xa0, 0xf6,
+ 0x05, 0xe0, 0x0b, 0xe5, 0x23, 0x06, 0x07, 0x06,
+ 0x27, 0xa6, 0x07, 0x06, 0x05, 0x16, 0xa0, 0xe9,
+ 0x02, 0xe0, 0x2e, 0xe5, 0x13, 0x20, 0x46, 0x27,
+ 0x66, 0x07, 0x86, 0x60, 0xe9, 0x02, 0x2b, 0x56,
+ 0x0f, 0xc5, 0xe0, 0x80, 0x31, 0xe5, 0x24, 0x47,
+ 0xe6, 0x01, 0x07, 0x26, 0x16, 0xe0, 0x5c, 0xe1,
+ 0x18, 0xe2, 0x18, 0xe9, 0x02, 0xeb, 0x01, 0xe0,
+ 0x04, 0xe5, 0x00, 0x20, 0x05, 0x20, 0xe5, 0x00,
+ 0x00, 0x25, 0x00, 0xe5, 0x10, 0xa7, 0x00, 0x27,
+ 0x20, 0x26, 0x07, 0x06, 0x05, 0x07, 0x05, 0x07,
+ 0x06, 0x56, 0xe0, 0x01, 0xe9, 0x02, 0xe0, 0x3e,
+ 0xe5, 0x00, 0x20, 0xe5, 0x1f, 0x47, 0x66, 0x20,
+ 0x26, 0x67, 0x06, 0x05, 0x16, 0x05, 0x07, 0xe0,
+ 0x13, 0x05, 0xe6, 0x02, 0xe5, 0x20, 0xa6, 0x07,
+ 0x05, 0x66, 0xf6, 0x00, 0x06, 0xe0, 0x00, 0x05,
+ 0xa6, 0x27, 0x46, 0xe5, 0x26, 0xe6, 0x05, 0x07,
+ 0x26, 0x56, 0x05, 0x96, 0xe0, 0x05, 0xe5, 0x41,
+ 0xc0, 0xf6, 0x02, 0xe0, 0x80, 0x6e, 0xe5, 0x01,
+ 0x00, 0xe5, 0x1d, 0x07, 0xc6, 0x00, 0xa6, 0x07,
+ 0x06, 0x05, 0x96, 0xe0, 0x02, 0xe9, 0x02, 0xeb,
+ 0x0b, 0x40, 0x36, 0xe5, 0x16, 0x20, 0xe6, 0x0e,
+ 0x00, 0x07, 0xc6, 0x07, 0x26, 0x07, 0x26, 0xe0,
+ 0x41, 0xc5, 0x00, 0x25, 0x00, 0xe5, 0x1e, 0xa6,
+ 0x40, 0x06, 0x00, 0x26, 0x00, 0xc6, 0x05, 0x06,
+ 0xe0, 0x00, 0xe9, 0x02, 0xa0, 0xa5, 0x00, 0x25,
+ 0x00, 0xe5, 0x18, 0x87, 0x00, 0x26, 0x00, 0x27,
+ 0x06, 0x07, 0x06, 0x05, 0xc0, 0xe9, 0x02, 0xe0,
+ 0x80, 0xae, 0xe5, 0x0b, 0x26, 0x27, 0x36, 0xc0,
+ 0x26, 0x05, 0x07, 0xe5, 0x05, 0x00, 0xe5, 0x1a,
+ 0x27, 0x86, 0x40, 0x27, 0x06, 0x07, 0x06, 0xf6,
+ 0x05, 0xe9, 0x02, 0xe0, 0x4e, 0x05, 0xe0, 0x07,
+ 0xeb, 0x0d, 0xef, 0x00, 0x6d, 0xef, 0x09, 0xe0,
+ 0x05, 0x16, 0xe5, 0x83, 0x12, 0xe0, 0x5e, 0xea,
+ 0x67, 0x00, 0x96, 0xe0, 0x03, 0xe5, 0x80, 0x3c,
+ 0xe0, 0x89, 0xc4, 0xe5, 0x59, 0x36, 0xe0, 0x05,
+ 0xe5, 0x83, 0xa8, 0xfb, 0x08, 0x06, 0xa5, 0xe6,
+ 0x07, 0xe0, 0x8f, 0x22, 0xe5, 0x81, 0xbf, 0xe0,
+ 0xa1, 0x31, 0xe5, 0x81, 0xb1, 0xc0, 0xe5, 0x17,
+ 0x00, 0xe9, 0x02, 0x60, 0x36, 0xe5, 0x47, 0x00,
+ 0xe9, 0x02, 0xa0, 0xe5, 0x16, 0x20, 0x86, 0x16,
+ 0xe0, 0x02, 0xe5, 0x28, 0xc6, 0x96, 0x6f, 0x64,
+ 0x16, 0x0f, 0xe0, 0x02, 0xe9, 0x02, 0x00, 0xcb,
+ 0x00, 0xe5, 0x0d, 0x80, 0xe5, 0x0b, 0xe0, 0x82,
+ 0x28, 0xe1, 0x18, 0xe2, 0x18, 0xeb, 0x0f, 0x76,
+ 0xe0, 0x5d, 0xe5, 0x43, 0x60, 0x06, 0x05, 0xe7,
+ 0x2f, 0xc0, 0x66, 0xe4, 0x05, 0xe0, 0x38, 0x24,
+ 0x16, 0x04, 0x06, 0xe0, 0x03, 0x27, 0xe0, 0x06,
+ 0xe5, 0x97, 0x70, 0xe0, 0x00, 0xe5, 0x84, 0x4e,
+ 0xe0, 0x22, 0xe5, 0x01, 0xe0, 0xa2, 0x5f, 0x64,
+ 0x00, 0xc4, 0x00, 0x24, 0x00, 0xe5, 0x80, 0x9b,
+ 0xe0, 0x07, 0x05, 0xe0, 0x15, 0x45, 0x20, 0x05,
+ 0xe0, 0x06, 0x65, 0xe0, 0x00, 0xe5, 0x81, 0x04,
+ 0xe0, 0x88, 0x7c, 0xe5, 0x63, 0x80, 0xe5, 0x05,
+ 0x40, 0xe5, 0x01, 0xc0, 0xe5, 0x02, 0x20, 0x0f,
+ 0x26, 0x16, 0x7b, 0xe0, 0x91, 0xd4, 0xe6, 0x26,
+ 0x20, 0xe6, 0x0f, 0xe0, 0x01, 0xef, 0x6c, 0xe0,
+ 0x34, 0xef, 0x80, 0x6e, 0xe0, 0x02, 0xef, 0x1f,
+ 0x20, 0xef, 0x34, 0x27, 0x46, 0x4f, 0xa7, 0xfb,
+ 0x00, 0xe6, 0x00, 0x2f, 0xc6, 0xef, 0x16, 0x66,
+ 0xef, 0x35, 0xe0, 0x0d, 0xef, 0x3a, 0x46, 0x0f,
+ 0xe0, 0x72, 0xeb, 0x0c, 0xe0, 0x04, 0xeb, 0x0c,
+ 0xe0, 0x04, 0xef, 0x4f, 0xe0, 0x01, 0xeb, 0x11,
+ 0xe0, 0x7f, 0xe1, 0x12, 0xe2, 0x12, 0xe1, 0x12,
+ 0xc2, 0x00, 0xe2, 0x0a, 0xe1, 0x12, 0xe2, 0x12,
+ 0x01, 0x00, 0x21, 0x20, 0x01, 0x20, 0x21, 0x20,
+ 0x61, 0x00, 0xe1, 0x00, 0x62, 0x00, 0x02, 0x00,
+ 0xc2, 0x00, 0xe2, 0x03, 0xe1, 0x12, 0xe2, 0x12,
+ 0x21, 0x00, 0x61, 0x20, 0xe1, 0x00, 0x00, 0xc1,
+ 0x00, 0xe2, 0x12, 0x21, 0x00, 0x61, 0x00, 0x81,
+ 0x00, 0x01, 0x40, 0xc1, 0x00, 0xe2, 0x12, 0xe1,
+ 0x12, 0xe2, 0x12, 0xe1, 0x12, 0xe2, 0x12, 0xe1,
+ 0x12, 0xe2, 0x12, 0xe1, 0x12, 0xe2, 0x12, 0xe1,
+ 0x12, 0xe2, 0x12, 0xe1, 0x12, 0xe2, 0x14, 0x20,
+ 0xe1, 0x11, 0x0c, 0xe2, 0x11, 0x0c, 0xa2, 0xe1,
+ 0x11, 0x0c, 0xe2, 0x11, 0x0c, 0xa2, 0xe1, 0x11,
+ 0x0c, 0xe2, 0x11, 0x0c, 0xa2, 0xe1, 0x11, 0x0c,
+ 0xe2, 0x11, 0x0c, 0xa2, 0xe1, 0x11, 0x0c, 0xe2,
+ 0x11, 0x0c, 0xa2, 0x3f, 0x20, 0xe9, 0x2a, 0xef,
+ 0x81, 0x78, 0xe6, 0x2f, 0x6f, 0xe6, 0x2a, 0xef,
+ 0x00, 0x06, 0xef, 0x06, 0x06, 0x2f, 0x96, 0xe0,
+ 0x07, 0x86, 0x00, 0xe6, 0x07, 0xe0, 0x83, 0xc8,
+ 0xe2, 0x02, 0x05, 0xe2, 0x0c, 0xa0, 0xa2, 0xe0,
+ 0x80, 0x4d, 0xc6, 0x00, 0xe6, 0x09, 0x20, 0xc6,
+ 0x00, 0x26, 0x00, 0x86, 0x80, 0xe4, 0x36, 0xe0,
+ 0x19, 0x06, 0xe0, 0x68, 0xe5, 0x25, 0x40, 0xc6,
+ 0xc4, 0x20, 0xe9, 0x02, 0x60, 0x05, 0x0f, 0xe0,
+ 0x80, 0xb8, 0xe5, 0x16, 0x06, 0xe0, 0x09, 0xe5,
+ 0x24, 0x66, 0xe9, 0x02, 0x80, 0x0d, 0xe0, 0x81,
+ 0x48, 0xe5, 0x13, 0x04, 0x66, 0xe9, 0x02, 0xe0,
+ 0x82, 0x5e, 0xc5, 0x00, 0x65, 0x00, 0x25, 0x00,
+ 0xe5, 0x07, 0x00, 0xe5, 0x80, 0x3d, 0x20, 0xeb,
+ 0x01, 0xc6, 0xe0, 0x21, 0xe1, 0x1a, 0xe2, 0x1a,
+ 0xc6, 0x04, 0x60, 0xe9, 0x02, 0x60, 0x36, 0xe0,
+ 0x82, 0x89, 0xeb, 0x33, 0x0f, 0x4b, 0x0d, 0x6b,
+ 0xe0, 0x44, 0xeb, 0x25, 0x0f, 0xeb, 0x07, 0xe0,
+ 0x80, 0x3a, 0x65, 0x00, 0xe5, 0x13, 0x00, 0x25,
+ 0x00, 0x05, 0x20, 0x05, 0x00, 0xe5, 0x02, 0x00,
+ 0x65, 0x00, 0x05, 0x00, 0x05, 0xa0, 0x05, 0x60,
+ 0x05, 0x00, 0x05, 0x00, 0x05, 0x00, 0x45, 0x00,
+ 0x25, 0x00, 0x05, 0x20, 0x05, 0x00, 0x05, 0x00,
+ 0x05, 0x00, 0x05, 0x00, 0x05, 0x00, 0x25, 0x00,
+ 0x05, 0x20, 0x65, 0x00, 0xc5, 0x00, 0x65, 0x00,
+ 0x65, 0x00, 0x05, 0x00, 0xe5, 0x02, 0x00, 0xe5,
+ 0x09, 0x80, 0x45, 0x00, 0x85, 0x00, 0xe5, 0x09,
+ 0xe0, 0x2c, 0x2c, 0xe0, 0x80, 0x86, 0xef, 0x24,
+ 0x60, 0xef, 0x5c, 0xe0, 0x04, 0xef, 0x07, 0x20,
+ 0xef, 0x07, 0x00, 0xef, 0x07, 0x00, 0xef, 0x1d,
+ 0xe0, 0x02, 0xeb, 0x05, 0xef, 0x80, 0x19, 0xe0,
+ 0x30, 0xef, 0x15, 0xe0, 0x05, 0xef, 0x24, 0x60,
+ 0xef, 0x01, 0xc0, 0x2f, 0xe0, 0x06, 0xaf, 0xe0,
+ 0x80, 0x12, 0xef, 0x80, 0x73, 0x8e, 0xef, 0x82,
+ 0x50, 0x60, 0xef, 0x09, 0x40, 0xef, 0x05, 0x40,
+ 0xef, 0x6f, 0x60, 0xef, 0x57, 0xa0, 0xef, 0x04,
+ 0x60, 0x0f, 0xe0, 0x07, 0xef, 0x04, 0x60, 0xef,
+ 0x30, 0xe0, 0x00, 0xef, 0x02, 0xa0, 0xef, 0x20,
+ 0xe0, 0x00, 0xef, 0x16, 0x20, 0x2f, 0xe0, 0x46,
+ 0xef, 0x80, 0xcc, 0xe0, 0x04, 0xef, 0x06, 0x20,
+ 0xef, 0x05, 0x40, 0xef, 0x01, 0xc0, 0xef, 0x26,
+ 0x00, 0xcf, 0xe0, 0x00, 0xef, 0x06, 0x60, 0xef,
+ 0x01, 0xc0, 0xef, 0x01, 0xc0, 0xef, 0x80, 0x0b,
+ 0x00, 0xef, 0x2f, 0xe0, 0x1d, 0xe9, 0x02, 0xe0,
+ 0x83, 0x7e, 0xe5, 0xc0, 0x66, 0x58, 0xe0, 0x18,
+ 0xe5, 0x8f, 0xb2, 0xa0, 0xe5, 0x80, 0x56, 0x20,
+ 0xe5, 0x95, 0xfa, 0xe0, 0x06, 0xe5, 0x9c, 0xa9,
+ 0xe0, 0x8b, 0x97, 0xe5, 0x81, 0x96, 0xe0, 0x85,
+ 0x5a, 0xe5, 0x92, 0xc3, 0x80, 0xe5, 0x8f, 0xd8,
+ 0xe0, 0xca, 0x9b, 0xc9, 0x1b, 0xe0, 0x16, 0xfb,
+ 0x58, 0xe0, 0x78, 0xe6, 0x80, 0x68, 0xe0, 0xc0,
+ 0xbd, 0x88, 0xfd, 0xc0, 0xbf, 0x76, 0x20, 0xfd,
+ 0xc0, 0xbf, 0x76, 0x20,
+};
+
+typedef enum {
+ UNICODE_SCRIPT_Unknown,
+ UNICODE_SCRIPT_Adlam,
+ UNICODE_SCRIPT_Ahom,
+ UNICODE_SCRIPT_Anatolian_Hieroglyphs,
+ UNICODE_SCRIPT_Arabic,
+ UNICODE_SCRIPT_Armenian,
+ UNICODE_SCRIPT_Avestan,
+ UNICODE_SCRIPT_Balinese,
+ UNICODE_SCRIPT_Bamum,
+ UNICODE_SCRIPT_Bassa_Vah,
+ UNICODE_SCRIPT_Batak,
+ UNICODE_SCRIPT_Bengali,
+ UNICODE_SCRIPT_Bhaiksuki,
+ UNICODE_SCRIPT_Bopomofo,
+ UNICODE_SCRIPT_Brahmi,
+ UNICODE_SCRIPT_Braille,
+ UNICODE_SCRIPT_Buginese,
+ UNICODE_SCRIPT_Buhid,
+ UNICODE_SCRIPT_Canadian_Aboriginal,
+ UNICODE_SCRIPT_Carian,
+ UNICODE_SCRIPT_Caucasian_Albanian,
+ UNICODE_SCRIPT_Chakma,
+ UNICODE_SCRIPT_Cham,
+ UNICODE_SCRIPT_Cherokee,
+ UNICODE_SCRIPT_Chorasmian,
+ UNICODE_SCRIPT_Common,
+ UNICODE_SCRIPT_Coptic,
+ UNICODE_SCRIPT_Cuneiform,
+ UNICODE_SCRIPT_Cypriot,
+ UNICODE_SCRIPT_Cyrillic,
+ UNICODE_SCRIPT_Cypro_Minoan,
+ UNICODE_SCRIPT_Deseret,
+ UNICODE_SCRIPT_Devanagari,
+ UNICODE_SCRIPT_Dives_Akuru,
+ UNICODE_SCRIPT_Dogra,
+ UNICODE_SCRIPT_Duployan,
+ UNICODE_SCRIPT_Egyptian_Hieroglyphs,
+ UNICODE_SCRIPT_Elbasan,
+ UNICODE_SCRIPT_Elymaic,
+ UNICODE_SCRIPT_Ethiopic,
+ UNICODE_SCRIPT_Georgian,
+ UNICODE_SCRIPT_Glagolitic,
+ UNICODE_SCRIPT_Gothic,
+ UNICODE_SCRIPT_Grantha,
+ UNICODE_SCRIPT_Greek,
+ UNICODE_SCRIPT_Gujarati,
+ UNICODE_SCRIPT_Gunjala_Gondi,
+ UNICODE_SCRIPT_Gurmukhi,
+ UNICODE_SCRIPT_Han,
+ UNICODE_SCRIPT_Hangul,
+ UNICODE_SCRIPT_Hanifi_Rohingya,
+ UNICODE_SCRIPT_Hanunoo,
+ UNICODE_SCRIPT_Hatran,
+ UNICODE_SCRIPT_Hebrew,
+ UNICODE_SCRIPT_Hiragana,
+ UNICODE_SCRIPT_Imperial_Aramaic,
+ UNICODE_SCRIPT_Inherited,
+ UNICODE_SCRIPT_Inscriptional_Pahlavi,
+ UNICODE_SCRIPT_Inscriptional_Parthian,
+ UNICODE_SCRIPT_Javanese,
+ UNICODE_SCRIPT_Kaithi,
+ UNICODE_SCRIPT_Kannada,
+ UNICODE_SCRIPT_Katakana,
+ UNICODE_SCRIPT_Kawi,
+ UNICODE_SCRIPT_Kayah_Li,
+ UNICODE_SCRIPT_Kharoshthi,
+ UNICODE_SCRIPT_Khmer,
+ UNICODE_SCRIPT_Khojki,
+ UNICODE_SCRIPT_Khitan_Small_Script,
+ UNICODE_SCRIPT_Khudawadi,
+ UNICODE_SCRIPT_Lao,
+ UNICODE_SCRIPT_Latin,
+ UNICODE_SCRIPT_Lepcha,
+ UNICODE_SCRIPT_Limbu,
+ UNICODE_SCRIPT_Linear_A,
+ UNICODE_SCRIPT_Linear_B,
+ UNICODE_SCRIPT_Lisu,
+ UNICODE_SCRIPT_Lycian,
+ UNICODE_SCRIPT_Lydian,
+ UNICODE_SCRIPT_Makasar,
+ UNICODE_SCRIPT_Mahajani,
+ UNICODE_SCRIPT_Malayalam,
+ UNICODE_SCRIPT_Mandaic,
+ UNICODE_SCRIPT_Manichaean,
+ UNICODE_SCRIPT_Marchen,
+ UNICODE_SCRIPT_Masaram_Gondi,
+ UNICODE_SCRIPT_Medefaidrin,
+ UNICODE_SCRIPT_Meetei_Mayek,
+ UNICODE_SCRIPT_Mende_Kikakui,
+ UNICODE_SCRIPT_Meroitic_Cursive,
+ UNICODE_SCRIPT_Meroitic_Hieroglyphs,
+ UNICODE_SCRIPT_Miao,
+ UNICODE_SCRIPT_Modi,
+ UNICODE_SCRIPT_Mongolian,
+ UNICODE_SCRIPT_Mro,
+ UNICODE_SCRIPT_Multani,
+ UNICODE_SCRIPT_Myanmar,
+ UNICODE_SCRIPT_Nabataean,
+ UNICODE_SCRIPT_Nag_Mundari,
+ UNICODE_SCRIPT_Nandinagari,
+ UNICODE_SCRIPT_New_Tai_Lue,
+ UNICODE_SCRIPT_Newa,
+ UNICODE_SCRIPT_Nko,
+ UNICODE_SCRIPT_Nushu,
+ UNICODE_SCRIPT_Nyiakeng_Puachue_Hmong,
+ UNICODE_SCRIPT_Ogham,
+ UNICODE_SCRIPT_Ol_Chiki,
+ UNICODE_SCRIPT_Old_Hungarian,
+ UNICODE_SCRIPT_Old_Italic,
+ UNICODE_SCRIPT_Old_North_Arabian,
+ UNICODE_SCRIPT_Old_Permic,
+ UNICODE_SCRIPT_Old_Persian,
+ UNICODE_SCRIPT_Old_Sogdian,
+ UNICODE_SCRIPT_Old_South_Arabian,
+ UNICODE_SCRIPT_Old_Turkic,
+ UNICODE_SCRIPT_Old_Uyghur,
+ UNICODE_SCRIPT_Oriya,
+ UNICODE_SCRIPT_Osage,
+ UNICODE_SCRIPT_Osmanya,
+ UNICODE_SCRIPT_Pahawh_Hmong,
+ UNICODE_SCRIPT_Palmyrene,
+ UNICODE_SCRIPT_Pau_Cin_Hau,
+ UNICODE_SCRIPT_Phags_Pa,
+ UNICODE_SCRIPT_Phoenician,
+ UNICODE_SCRIPT_Psalter_Pahlavi,
+ UNICODE_SCRIPT_Rejang,
+ UNICODE_SCRIPT_Runic,
+ UNICODE_SCRIPT_Samaritan,
+ UNICODE_SCRIPT_Saurashtra,
+ UNICODE_SCRIPT_Sharada,
+ UNICODE_SCRIPT_Shavian,
+ UNICODE_SCRIPT_Siddham,
+ UNICODE_SCRIPT_SignWriting,
+ UNICODE_SCRIPT_Sinhala,
+ UNICODE_SCRIPT_Sogdian,
+ UNICODE_SCRIPT_Sora_Sompeng,
+ UNICODE_SCRIPT_Soyombo,
+ UNICODE_SCRIPT_Sundanese,
+ UNICODE_SCRIPT_Syloti_Nagri,
+ UNICODE_SCRIPT_Syriac,
+ UNICODE_SCRIPT_Tagalog,
+ UNICODE_SCRIPT_Tagbanwa,
+ UNICODE_SCRIPT_Tai_Le,
+ UNICODE_SCRIPT_Tai_Tham,
+ UNICODE_SCRIPT_Tai_Viet,
+ UNICODE_SCRIPT_Takri,
+ UNICODE_SCRIPT_Tamil,
+ UNICODE_SCRIPT_Tangut,
+ UNICODE_SCRIPT_Telugu,
+ UNICODE_SCRIPT_Thaana,
+ UNICODE_SCRIPT_Thai,
+ UNICODE_SCRIPT_Tibetan,
+ UNICODE_SCRIPT_Tifinagh,
+ UNICODE_SCRIPT_Tirhuta,
+ UNICODE_SCRIPT_Tangsa,
+ UNICODE_SCRIPT_Toto,
+ UNICODE_SCRIPT_Ugaritic,
+ UNICODE_SCRIPT_Vai,
+ UNICODE_SCRIPT_Vithkuqi,
+ UNICODE_SCRIPT_Wancho,
+ UNICODE_SCRIPT_Warang_Citi,
+ UNICODE_SCRIPT_Yezidi,
+ UNICODE_SCRIPT_Yi,
+ UNICODE_SCRIPT_Zanabazar_Square,
+ UNICODE_SCRIPT_COUNT,
+} UnicodeScriptEnum;
+
+static const char unicode_script_name_table[] =
+ "Adlam,Adlm" "\0"
+ "Ahom,Ahom" "\0"
+ "Anatolian_Hieroglyphs,Hluw" "\0"
+ "Arabic,Arab" "\0"
+ "Armenian,Armn" "\0"
+ "Avestan,Avst" "\0"
+ "Balinese,Bali" "\0"
+ "Bamum,Bamu" "\0"
+ "Bassa_Vah,Bass" "\0"
+ "Batak,Batk" "\0"
+ "Bengali,Beng" "\0"
+ "Bhaiksuki,Bhks" "\0"
+ "Bopomofo,Bopo" "\0"
+ "Brahmi,Brah" "\0"
+ "Braille,Brai" "\0"
+ "Buginese,Bugi" "\0"
+ "Buhid,Buhd" "\0"
+ "Canadian_Aboriginal,Cans" "\0"
+ "Carian,Cari" "\0"
+ "Caucasian_Albanian,Aghb" "\0"
+ "Chakma,Cakm" "\0"
+ "Cham,Cham" "\0"
+ "Cherokee,Cher" "\0"
+ "Chorasmian,Chrs" "\0"
+ "Common,Zyyy" "\0"
+ "Coptic,Copt,Qaac" "\0"
+ "Cuneiform,Xsux" "\0"
+ "Cypriot,Cprt" "\0"
+ "Cyrillic,Cyrl" "\0"
+ "Cypro_Minoan,Cpmn" "\0"
+ "Deseret,Dsrt" "\0"
+ "Devanagari,Deva" "\0"
+ "Dives_Akuru,Diak" "\0"
+ "Dogra,Dogr" "\0"
+ "Duployan,Dupl" "\0"
+ "Egyptian_Hieroglyphs,Egyp" "\0"
+ "Elbasan,Elba" "\0"
+ "Elymaic,Elym" "\0"
+ "Ethiopic,Ethi" "\0"
+ "Georgian,Geor" "\0"
+ "Glagolitic,Glag" "\0"
+ "Gothic,Goth" "\0"
+ "Grantha,Gran" "\0"
+ "Greek,Grek" "\0"
+ "Gujarati,Gujr" "\0"
+ "Gunjala_Gondi,Gong" "\0"
+ "Gurmukhi,Guru" "\0"
+ "Han,Hani" "\0"
+ "Hangul,Hang" "\0"
+ "Hanifi_Rohingya,Rohg" "\0"
+ "Hanunoo,Hano" "\0"
+ "Hatran,Hatr" "\0"
+ "Hebrew,Hebr" "\0"
+ "Hiragana,Hira" "\0"
+ "Imperial_Aramaic,Armi" "\0"
+ "Inherited,Zinh,Qaai" "\0"
+ "Inscriptional_Pahlavi,Phli" "\0"
+ "Inscriptional_Parthian,Prti" "\0"
+ "Javanese,Java" "\0"
+ "Kaithi,Kthi" "\0"
+ "Kannada,Knda" "\0"
+ "Katakana,Kana" "\0"
+ "Kawi,Kawi" "\0"
+ "Kayah_Li,Kali" "\0"
+ "Kharoshthi,Khar" "\0"
+ "Khmer,Khmr" "\0"
+ "Khojki,Khoj" "\0"
+ "Khitan_Small_Script,Kits" "\0"
+ "Khudawadi,Sind" "\0"
+ "Lao,Laoo" "\0"
+ "Latin,Latn" "\0"
+ "Lepcha,Lepc" "\0"
+ "Limbu,Limb" "\0"
+ "Linear_A,Lina" "\0"
+ "Linear_B,Linb" "\0"
+ "Lisu,Lisu" "\0"
+ "Lycian,Lyci" "\0"
+ "Lydian,Lydi" "\0"
+ "Makasar,Maka" "\0"
+ "Mahajani,Mahj" "\0"
+ "Malayalam,Mlym" "\0"
+ "Mandaic,Mand" "\0"
+ "Manichaean,Mani" "\0"
+ "Marchen,Marc" "\0"
+ "Masaram_Gondi,Gonm" "\0"
+ "Medefaidrin,Medf" "\0"
+ "Meetei_Mayek,Mtei" "\0"
+ "Mende_Kikakui,Mend" "\0"
+ "Meroitic_Cursive,Merc" "\0"
+ "Meroitic_Hieroglyphs,Mero" "\0"
+ "Miao,Plrd" "\0"
+ "Modi,Modi" "\0"
+ "Mongolian,Mong" "\0"
+ "Mro,Mroo" "\0"
+ "Multani,Mult" "\0"
+ "Myanmar,Mymr" "\0"
+ "Nabataean,Nbat" "\0"
+ "Nag_Mundari,Nagm" "\0"
+ "Nandinagari,Nand" "\0"
+ "New_Tai_Lue,Talu" "\0"
+ "Newa,Newa" "\0"
+ "Nko,Nkoo" "\0"
+ "Nushu,Nshu" "\0"
+ "Nyiakeng_Puachue_Hmong,Hmnp" "\0"
+ "Ogham,Ogam" "\0"
+ "Ol_Chiki,Olck" "\0"
+ "Old_Hungarian,Hung" "\0"
+ "Old_Italic,Ital" "\0"
+ "Old_North_Arabian,Narb" "\0"
+ "Old_Permic,Perm" "\0"
+ "Old_Persian,Xpeo" "\0"
+ "Old_Sogdian,Sogo" "\0"
+ "Old_South_Arabian,Sarb" "\0"
+ "Old_Turkic,Orkh" "\0"
+ "Old_Uyghur,Ougr" "\0"
+ "Oriya,Orya" "\0"
+ "Osage,Osge" "\0"
+ "Osmanya,Osma" "\0"
+ "Pahawh_Hmong,Hmng" "\0"
+ "Palmyrene,Palm" "\0"
+ "Pau_Cin_Hau,Pauc" "\0"
+ "Phags_Pa,Phag" "\0"
+ "Phoenician,Phnx" "\0"
+ "Psalter_Pahlavi,Phlp" "\0"
+ "Rejang,Rjng" "\0"
+ "Runic,Runr" "\0"
+ "Samaritan,Samr" "\0"
+ "Saurashtra,Saur" "\0"
+ "Sharada,Shrd" "\0"
+ "Shavian,Shaw" "\0"
+ "Siddham,Sidd" "\0"
+ "SignWriting,Sgnw" "\0"
+ "Sinhala,Sinh" "\0"
+ "Sogdian,Sogd" "\0"
+ "Sora_Sompeng,Sora" "\0"
+ "Soyombo,Soyo" "\0"
+ "Sundanese,Sund" "\0"
+ "Syloti_Nagri,Sylo" "\0"
+ "Syriac,Syrc" "\0"
+ "Tagalog,Tglg" "\0"
+ "Tagbanwa,Tagb" "\0"
+ "Tai_Le,Tale" "\0"
+ "Tai_Tham,Lana" "\0"
+ "Tai_Viet,Tavt" "\0"
+ "Takri,Takr" "\0"
+ "Tamil,Taml" "\0"
+ "Tangut,Tang" "\0"
+ "Telugu,Telu" "\0"
+ "Thaana,Thaa" "\0"
+ "Thai,Thai" "\0"
+ "Tibetan,Tibt" "\0"
+ "Tifinagh,Tfng" "\0"
+ "Tirhuta,Tirh" "\0"
+ "Tangsa,Tnsa" "\0"
+ "Toto,Toto" "\0"
+ "Ugaritic,Ugar" "\0"
+ "Vai,Vaii" "\0"
+ "Vithkuqi,Vith" "\0"
+ "Wancho,Wcho" "\0"
+ "Warang_Citi,Wara" "\0"
+ "Yezidi,Yezi" "\0"
+ "Yi,Yiii" "\0"
+ "Zanabazar_Square,Zanb" "\0"
+;
+
+static const uint8_t unicode_script_table[2720] = {
+ 0xc0, 0x19, 0x99, 0x47, 0x85, 0x19, 0x99, 0x47,
+ 0xae, 0x19, 0x80, 0x47, 0x8e, 0x19, 0x80, 0x47,
+ 0x84, 0x19, 0x96, 0x47, 0x80, 0x19, 0x9e, 0x47,
+ 0x80, 0x19, 0xe1, 0x60, 0x47, 0xa6, 0x19, 0x84,
+ 0x47, 0x84, 0x19, 0x81, 0x0d, 0x93, 0x19, 0xe0,
+ 0x0f, 0x38, 0x83, 0x2c, 0x80, 0x19, 0x82, 0x2c,
+ 0x01, 0x83, 0x2c, 0x80, 0x19, 0x80, 0x2c, 0x03,
+ 0x80, 0x2c, 0x80, 0x19, 0x80, 0x2c, 0x80, 0x19,
+ 0x82, 0x2c, 0x00, 0x80, 0x2c, 0x00, 0x93, 0x2c,
+ 0x00, 0xbe, 0x2c, 0x8d, 0x1a, 0x8f, 0x2c, 0xe0,
+ 0x24, 0x1d, 0x81, 0x38, 0xe0, 0x48, 0x1d, 0x00,
+ 0xa5, 0x05, 0x01, 0xb1, 0x05, 0x01, 0x82, 0x05,
+ 0x00, 0xb6, 0x35, 0x07, 0x9a, 0x35, 0x03, 0x85,
+ 0x35, 0x0a, 0x84, 0x04, 0x80, 0x19, 0x85, 0x04,
+ 0x80, 0x19, 0x8d, 0x04, 0x80, 0x19, 0x82, 0x04,
+ 0x80, 0x19, 0x9f, 0x04, 0x80, 0x19, 0x89, 0x04,
+ 0x8a, 0x38, 0x99, 0x04, 0x80, 0x38, 0xe0, 0x0b,
+ 0x04, 0x80, 0x19, 0xa1, 0x04, 0x8d, 0x8b, 0x00,
+ 0xbb, 0x8b, 0x01, 0x82, 0x8b, 0xaf, 0x04, 0xb1,
+ 0x95, 0x0d, 0xba, 0x66, 0x01, 0x82, 0x66, 0xad,
+ 0x7f, 0x01, 0x8e, 0x7f, 0x00, 0x9b, 0x52, 0x01,
+ 0x80, 0x52, 0x00, 0x8a, 0x8b, 0x04, 0x9e, 0x04,
+ 0x00, 0x81, 0x04, 0x05, 0xc9, 0x04, 0x80, 0x19,
+ 0x9c, 0x04, 0xd0, 0x20, 0x83, 0x38, 0x8e, 0x20,
+ 0x81, 0x19, 0x99, 0x20, 0x83, 0x0b, 0x00, 0x87,
+ 0x0b, 0x01, 0x81, 0x0b, 0x01, 0x95, 0x0b, 0x00,
+ 0x86, 0x0b, 0x00, 0x80, 0x0b, 0x02, 0x83, 0x0b,
+ 0x01, 0x88, 0x0b, 0x01, 0x81, 0x0b, 0x01, 0x83,
+ 0x0b, 0x07, 0x80, 0x0b, 0x03, 0x81, 0x0b, 0x00,
+ 0x84, 0x0b, 0x01, 0x98, 0x0b, 0x01, 0x82, 0x2f,
+ 0x00, 0x85, 0x2f, 0x03, 0x81, 0x2f, 0x01, 0x95,
+ 0x2f, 0x00, 0x86, 0x2f, 0x00, 0x81, 0x2f, 0x00,
+ 0x81, 0x2f, 0x00, 0x81, 0x2f, 0x01, 0x80, 0x2f,
+ 0x00, 0x84, 0x2f, 0x03, 0x81, 0x2f, 0x01, 0x82,
+ 0x2f, 0x02, 0x80, 0x2f, 0x06, 0x83, 0x2f, 0x00,
+ 0x80, 0x2f, 0x06, 0x90, 0x2f, 0x09, 0x82, 0x2d,
+ 0x00, 0x88, 0x2d, 0x00, 0x82, 0x2d, 0x00, 0x95,
+ 0x2d, 0x00, 0x86, 0x2d, 0x00, 0x81, 0x2d, 0x00,
+ 0x84, 0x2d, 0x01, 0x89, 0x2d, 0x00, 0x82, 0x2d,
+ 0x00, 0x82, 0x2d, 0x01, 0x80, 0x2d, 0x0e, 0x83,
+ 0x2d, 0x01, 0x8b, 0x2d, 0x06, 0x86, 0x2d, 0x00,
+ 0x82, 0x74, 0x00, 0x87, 0x74, 0x01, 0x81, 0x74,
+ 0x01, 0x95, 0x74, 0x00, 0x86, 0x74, 0x00, 0x81,
+ 0x74, 0x00, 0x84, 0x74, 0x01, 0x88, 0x74, 0x01,
+ 0x81, 0x74, 0x01, 0x82, 0x74, 0x06, 0x82, 0x74,
+ 0x03, 0x81, 0x74, 0x00, 0x84, 0x74, 0x01, 0x91,
+ 0x74, 0x09, 0x81, 0x92, 0x00, 0x85, 0x92, 0x02,
+ 0x82, 0x92, 0x00, 0x83, 0x92, 0x02, 0x81, 0x92,
+ 0x00, 0x80, 0x92, 0x00, 0x81, 0x92, 0x02, 0x81,
+ 0x92, 0x02, 0x82, 0x92, 0x02, 0x8b, 0x92, 0x03,
+ 0x84, 0x92, 0x02, 0x82, 0x92, 0x00, 0x83, 0x92,
+ 0x01, 0x80, 0x92, 0x05, 0x80, 0x92, 0x0d, 0x94,
+ 0x92, 0x04, 0x8c, 0x94, 0x00, 0x82, 0x94, 0x00,
+ 0x96, 0x94, 0x00, 0x8f, 0x94, 0x01, 0x88, 0x94,
+ 0x00, 0x82, 0x94, 0x00, 0x83, 0x94, 0x06, 0x81,
+ 0x94, 0x00, 0x82, 0x94, 0x01, 0x80, 0x94, 0x01,
+ 0x83, 0x94, 0x01, 0x89, 0x94, 0x06, 0x88, 0x94,
+ 0x8c, 0x3d, 0x00, 0x82, 0x3d, 0x00, 0x96, 0x3d,
+ 0x00, 0x89, 0x3d, 0x00, 0x84, 0x3d, 0x01, 0x88,
+ 0x3d, 0x00, 0x82, 0x3d, 0x00, 0x83, 0x3d, 0x06,
+ 0x81, 0x3d, 0x05, 0x81, 0x3d, 0x00, 0x83, 0x3d,
+ 0x01, 0x89, 0x3d, 0x00, 0x82, 0x3d, 0x0b, 0x8c,
+ 0x51, 0x00, 0x82, 0x51, 0x00, 0xb2, 0x51, 0x00,
+ 0x82, 0x51, 0x00, 0x85, 0x51, 0x03, 0x8f, 0x51,
+ 0x01, 0x99, 0x51, 0x00, 0x82, 0x85, 0x00, 0x91,
+ 0x85, 0x02, 0x97, 0x85, 0x00, 0x88, 0x85, 0x00,
+ 0x80, 0x85, 0x01, 0x86, 0x85, 0x02, 0x80, 0x85,
+ 0x03, 0x85, 0x85, 0x00, 0x80, 0x85, 0x00, 0x87,
+ 0x85, 0x05, 0x89, 0x85, 0x01, 0x82, 0x85, 0x0b,
+ 0xb9, 0x96, 0x03, 0x80, 0x19, 0x9b, 0x96, 0x24,
+ 0x81, 0x46, 0x00, 0x80, 0x46, 0x00, 0x84, 0x46,
+ 0x00, 0x97, 0x46, 0x00, 0x80, 0x46, 0x00, 0x96,
+ 0x46, 0x01, 0x84, 0x46, 0x00, 0x80, 0x46, 0x00,
+ 0x86, 0x46, 0x00, 0x89, 0x46, 0x01, 0x83, 0x46,
+ 0x1f, 0xc7, 0x97, 0x00, 0xa3, 0x97, 0x03, 0xa6,
+ 0x97, 0x00, 0xa3, 0x97, 0x00, 0x8e, 0x97, 0x00,
+ 0x86, 0x97, 0x83, 0x19, 0x81, 0x97, 0x24, 0xe0,
+ 0x3f, 0x60, 0xa5, 0x28, 0x00, 0x80, 0x28, 0x04,
+ 0x80, 0x28, 0x01, 0xaa, 0x28, 0x80, 0x19, 0x83,
+ 0x28, 0xe0, 0x9f, 0x31, 0xc8, 0x27, 0x00, 0x83,
+ 0x27, 0x01, 0x86, 0x27, 0x00, 0x80, 0x27, 0x00,
+ 0x83, 0x27, 0x01, 0xa8, 0x27, 0x00, 0x83, 0x27,
+ 0x01, 0xa0, 0x27, 0x00, 0x83, 0x27, 0x01, 0x86,
+ 0x27, 0x00, 0x80, 0x27, 0x00, 0x83, 0x27, 0x01,
+ 0x8e, 0x27, 0x00, 0xb8, 0x27, 0x00, 0x83, 0x27,
+ 0x01, 0xc2, 0x27, 0x01, 0x9f, 0x27, 0x02, 0x99,
+ 0x27, 0x05, 0xd5, 0x17, 0x01, 0x85, 0x17, 0x01,
+ 0xe2, 0x1f, 0x12, 0x9c, 0x69, 0x02, 0xca, 0x7e,
+ 0x82, 0x19, 0x8a, 0x7e, 0x06, 0x95, 0x8c, 0x08,
+ 0x80, 0x8c, 0x94, 0x33, 0x81, 0x19, 0x08, 0x93,
+ 0x11, 0x0b, 0x8c, 0x8d, 0x00, 0x82, 0x8d, 0x00,
+ 0x81, 0x8d, 0x0b, 0xdd, 0x42, 0x01, 0x89, 0x42,
+ 0x05, 0x89, 0x42, 0x05, 0x81, 0x5d, 0x81, 0x19,
+ 0x80, 0x5d, 0x80, 0x19, 0x93, 0x5d, 0x05, 0xd8,
+ 0x5d, 0x06, 0xaa, 0x5d, 0x04, 0xc5, 0x12, 0x09,
+ 0x9e, 0x49, 0x00, 0x8b, 0x49, 0x03, 0x8b, 0x49,
+ 0x03, 0x80, 0x49, 0x02, 0x8b, 0x49, 0x9d, 0x8e,
+ 0x01, 0x84, 0x8e, 0x0a, 0xab, 0x64, 0x03, 0x99,
+ 0x64, 0x05, 0x8a, 0x64, 0x02, 0x81, 0x64, 0x9f,
+ 0x42, 0x9b, 0x10, 0x01, 0x81, 0x10, 0xbe, 0x8f,
+ 0x00, 0x9c, 0x8f, 0x01, 0x8a, 0x8f, 0x05, 0x89,
+ 0x8f, 0x05, 0x8d, 0x8f, 0x01, 0x9e, 0x38, 0x30,
+ 0xcc, 0x07, 0x02, 0xae, 0x07, 0x00, 0xbf, 0x89,
+ 0xb3, 0x0a, 0x07, 0x83, 0x0a, 0xb7, 0x48, 0x02,
+ 0x8e, 0x48, 0x02, 0x82, 0x48, 0xaf, 0x6a, 0x88,
+ 0x1d, 0x06, 0xaa, 0x28, 0x01, 0x82, 0x28, 0x87,
+ 0x89, 0x07, 0x82, 0x38, 0x80, 0x19, 0x8c, 0x38,
+ 0x80, 0x19, 0x86, 0x38, 0x83, 0x19, 0x80, 0x38,
+ 0x85, 0x19, 0x80, 0x38, 0x82, 0x19, 0x81, 0x38,
+ 0x80, 0x19, 0x04, 0xa5, 0x47, 0x84, 0x2c, 0x80,
+ 0x1d, 0xb0, 0x47, 0x84, 0x2c, 0x83, 0x47, 0x84,
+ 0x2c, 0x8c, 0x47, 0x80, 0x1d, 0xc5, 0x47, 0x80,
+ 0x2c, 0xbf, 0x38, 0xe0, 0x9f, 0x47, 0x95, 0x2c,
+ 0x01, 0x85, 0x2c, 0x01, 0xa5, 0x2c, 0x01, 0x85,
+ 0x2c, 0x01, 0x87, 0x2c, 0x00, 0x80, 0x2c, 0x00,
+ 0x80, 0x2c, 0x00, 0x80, 0x2c, 0x00, 0x9e, 0x2c,
+ 0x01, 0xb4, 0x2c, 0x00, 0x8e, 0x2c, 0x00, 0x8d,
+ 0x2c, 0x01, 0x85, 0x2c, 0x00, 0x92, 0x2c, 0x01,
+ 0x82, 0x2c, 0x00, 0x88, 0x2c, 0x00, 0x8b, 0x19,
+ 0x81, 0x38, 0xd6, 0x19, 0x00, 0x8a, 0x19, 0x80,
+ 0x47, 0x01, 0x8a, 0x19, 0x80, 0x47, 0x8e, 0x19,
+ 0x00, 0x8c, 0x47, 0x02, 0xa0, 0x19, 0x0e, 0xa0,
+ 0x38, 0x0e, 0xa5, 0x19, 0x80, 0x2c, 0x82, 0x19,
+ 0x81, 0x47, 0x85, 0x19, 0x80, 0x47, 0x9a, 0x19,
+ 0x80, 0x47, 0x90, 0x19, 0xa8, 0x47, 0x82, 0x19,
+ 0x03, 0xe2, 0x36, 0x19, 0x18, 0x8a, 0x19, 0x14,
+ 0xe3, 0x3f, 0x19, 0xe0, 0x9f, 0x0f, 0xe2, 0x13,
+ 0x19, 0x01, 0x9f, 0x19, 0x00, 0xe0, 0x08, 0x19,
+ 0xdf, 0x29, 0x9f, 0x47, 0xe0, 0x13, 0x1a, 0x04,
+ 0x86, 0x1a, 0xa5, 0x28, 0x00, 0x80, 0x28, 0x04,
+ 0x80, 0x28, 0x01, 0xb7, 0x98, 0x06, 0x81, 0x98,
+ 0x0d, 0x80, 0x98, 0x96, 0x27, 0x08, 0x86, 0x27,
+ 0x00, 0x86, 0x27, 0x00, 0x86, 0x27, 0x00, 0x86,
+ 0x27, 0x00, 0x86, 0x27, 0x00, 0x86, 0x27, 0x00,
+ 0x86, 0x27, 0x00, 0x86, 0x27, 0x00, 0x9f, 0x1d,
+ 0xdd, 0x19, 0x21, 0x99, 0x30, 0x00, 0xd8, 0x30,
+ 0x0b, 0xe0, 0x75, 0x30, 0x19, 0x8b, 0x19, 0x03,
+ 0x84, 0x19, 0x80, 0x30, 0x80, 0x19, 0x80, 0x30,
+ 0x98, 0x19, 0x88, 0x30, 0x83, 0x38, 0x81, 0x31,
+ 0x87, 0x19, 0x83, 0x30, 0x83, 0x19, 0x00, 0xd5,
+ 0x36, 0x01, 0x81, 0x38, 0x81, 0x19, 0x82, 0x36,
+ 0x80, 0x19, 0xd9, 0x3e, 0x81, 0x19, 0x82, 0x3e,
+ 0x04, 0xaa, 0x0d, 0x00, 0xdd, 0x31, 0x00, 0x8f,
+ 0x19, 0x9f, 0x0d, 0xa3, 0x19, 0x0b, 0x8f, 0x3e,
+ 0x9e, 0x31, 0x00, 0xbf, 0x19, 0x9e, 0x31, 0xd0,
+ 0x19, 0xae, 0x3e, 0x80, 0x19, 0xd7, 0x3e, 0xe0,
+ 0x47, 0x19, 0xf0, 0x09, 0x5f, 0x30, 0xbf, 0x19,
+ 0xf0, 0x41, 0x9f, 0x30, 0xe4, 0x2c, 0xa2, 0x02,
+ 0xb6, 0xa2, 0x08, 0xaf, 0x4c, 0xe0, 0xcb, 0x9d,
+ 0x13, 0xdf, 0x1d, 0xd7, 0x08, 0x07, 0xa1, 0x19,
+ 0xe0, 0x05, 0x47, 0x82, 0x19, 0xbf, 0x47, 0x04,
+ 0x81, 0x47, 0x00, 0x80, 0x47, 0x00, 0x84, 0x47,
+ 0x17, 0x8d, 0x47, 0xac, 0x8a, 0x02, 0x89, 0x19,
+ 0x05, 0xb7, 0x7a, 0x07, 0xc5, 0x80, 0x07, 0x8b,
+ 0x80, 0x05, 0x9f, 0x20, 0xad, 0x40, 0x80, 0x19,
+ 0x80, 0x40, 0xa3, 0x7d, 0x0a, 0x80, 0x7d, 0x9c,
+ 0x31, 0x02, 0xcd, 0x3b, 0x00, 0x80, 0x19, 0x89,
+ 0x3b, 0x03, 0x81, 0x3b, 0x9e, 0x60, 0x00, 0xb6,
+ 0x16, 0x08, 0x8d, 0x16, 0x01, 0x89, 0x16, 0x01,
+ 0x83, 0x16, 0x9f, 0x60, 0xc2, 0x90, 0x17, 0x84,
+ 0x90, 0x96, 0x57, 0x09, 0x85, 0x27, 0x01, 0x85,
+ 0x27, 0x01, 0x85, 0x27, 0x08, 0x86, 0x27, 0x00,
+ 0x86, 0x27, 0x00, 0xaa, 0x47, 0x80, 0x19, 0x88,
+ 0x47, 0x80, 0x2c, 0x83, 0x47, 0x81, 0x19, 0x03,
+ 0xcf, 0x17, 0xad, 0x57, 0x01, 0x89, 0x57, 0x05,
+ 0xf0, 0x1b, 0x43, 0x31, 0x0b, 0x96, 0x31, 0x03,
+ 0xb0, 0x31, 0x70, 0x10, 0xa3, 0xe1, 0x0d, 0x30,
+ 0x01, 0xe0, 0x09, 0x30, 0x25, 0x86, 0x47, 0x0b,
+ 0x84, 0x05, 0x04, 0x99, 0x35, 0x00, 0x84, 0x35,
+ 0x00, 0x80, 0x35, 0x00, 0x81, 0x35, 0x00, 0x81,
+ 0x35, 0x00, 0x89, 0x35, 0xe0, 0x12, 0x04, 0x0f,
+ 0xe1, 0x0a, 0x04, 0x81, 0x19, 0xcf, 0x04, 0x01,
+ 0xb5, 0x04, 0x06, 0x80, 0x04, 0x1f, 0x8f, 0x04,
+ 0x8f, 0x38, 0x89, 0x19, 0x05, 0x8d, 0x38, 0x81,
+ 0x1d, 0xa2, 0x19, 0x00, 0x92, 0x19, 0x00, 0x83,
+ 0x19, 0x03, 0x84, 0x04, 0x00, 0xe0, 0x26, 0x04,
+ 0x01, 0x80, 0x19, 0x00, 0x9f, 0x19, 0x99, 0x47,
+ 0x85, 0x19, 0x99, 0x47, 0x8a, 0x19, 0x89, 0x3e,
+ 0x80, 0x19, 0xac, 0x3e, 0x81, 0x19, 0x9e, 0x31,
+ 0x02, 0x85, 0x31, 0x01, 0x85, 0x31, 0x01, 0x85,
+ 0x31, 0x01, 0x82, 0x31, 0x02, 0x86, 0x19, 0x00,
+ 0x86, 0x19, 0x09, 0x84, 0x19, 0x01, 0x8b, 0x4b,
+ 0x00, 0x99, 0x4b, 0x00, 0x92, 0x4b, 0x00, 0x81,
+ 0x4b, 0x00, 0x8e, 0x4b, 0x01, 0x8d, 0x4b, 0x21,
+ 0xe0, 0x1a, 0x4b, 0x04, 0x82, 0x19, 0x03, 0xac,
+ 0x19, 0x02, 0x88, 0x19, 0xce, 0x2c, 0x00, 0x8c,
+ 0x19, 0x02, 0x80, 0x2c, 0x2e, 0xac, 0x19, 0x80,
+ 0x38, 0x60, 0x21, 0x9c, 0x4d, 0x02, 0xb0, 0x13,
+ 0x0e, 0x80, 0x38, 0x9a, 0x19, 0x03, 0xa3, 0x6c,
+ 0x08, 0x82, 0x6c, 0x9a, 0x2a, 0x04, 0xaa, 0x6e,
+ 0x04, 0x9d, 0x9c, 0x00, 0x80, 0x9c, 0xa3, 0x6f,
+ 0x03, 0x8d, 0x6f, 0x29, 0xcf, 0x1f, 0xaf, 0x82,
+ 0x9d, 0x76, 0x01, 0x89, 0x76, 0x05, 0xa3, 0x75,
+ 0x03, 0xa3, 0x75, 0x03, 0xa7, 0x25, 0x07, 0xb3,
+ 0x14, 0x0a, 0x80, 0x14, 0x8a, 0x9e, 0x00, 0x8e,
+ 0x9e, 0x00, 0x86, 0x9e, 0x00, 0x81, 0x9e, 0x00,
+ 0x8a, 0x9e, 0x00, 0x8e, 0x9e, 0x00, 0x86, 0x9e,
+ 0x00, 0x81, 0x9e, 0x42, 0xe0, 0xd6, 0x4a, 0x08,
+ 0x95, 0x4a, 0x09, 0x87, 0x4a, 0x17, 0x85, 0x47,
+ 0x00, 0xa9, 0x47, 0x00, 0x88, 0x47, 0x44, 0x85,
+ 0x1c, 0x01, 0x80, 0x1c, 0x00, 0xab, 0x1c, 0x00,
+ 0x81, 0x1c, 0x02, 0x80, 0x1c, 0x01, 0x80, 0x1c,
+ 0x95, 0x37, 0x00, 0x88, 0x37, 0x9f, 0x78, 0x9e,
+ 0x61, 0x07, 0x88, 0x61, 0x2f, 0x92, 0x34, 0x00,
+ 0x81, 0x34, 0x04, 0x84, 0x34, 0x9b, 0x7b, 0x02,
+ 0x80, 0x7b, 0x99, 0x4e, 0x04, 0x80, 0x4e, 0x3f,
+ 0x9f, 0x5a, 0x97, 0x59, 0x03, 0x93, 0x59, 0x01,
+ 0xad, 0x59, 0x83, 0x41, 0x00, 0x81, 0x41, 0x04,
+ 0x87, 0x41, 0x00, 0x82, 0x41, 0x00, 0x9c, 0x41,
+ 0x01, 0x82, 0x41, 0x03, 0x89, 0x41, 0x06, 0x88,
+ 0x41, 0x06, 0x9f, 0x71, 0x9f, 0x6d, 0x1f, 0xa6,
+ 0x53, 0x03, 0x8b, 0x53, 0x08, 0xb5, 0x06, 0x02,
+ 0x86, 0x06, 0x95, 0x3a, 0x01, 0x87, 0x3a, 0x92,
+ 0x39, 0x04, 0x87, 0x39, 0x91, 0x7c, 0x06, 0x83,
+ 0x7c, 0x0b, 0x86, 0x7c, 0x4f, 0xc8, 0x72, 0x36,
+ 0xb2, 0x6b, 0x0c, 0xb2, 0x6b, 0x06, 0x85, 0x6b,
+ 0xa7, 0x32, 0x07, 0x89, 0x32, 0x60, 0xc5, 0x9e,
+ 0x04, 0x00, 0xa9, 0xa1, 0x00, 0x82, 0xa1, 0x01,
+ 0x81, 0xa1, 0x4a, 0x82, 0x04, 0xa7, 0x70, 0x07,
+ 0xa9, 0x86, 0x15, 0x99, 0x73, 0x25, 0x9b, 0x18,
+ 0x13, 0x96, 0x26, 0x08, 0xcd, 0x0e, 0x03, 0xa3,
+ 0x0e, 0x08, 0x80, 0x0e, 0xc2, 0x3c, 0x09, 0x80,
+ 0x3c, 0x01, 0x98, 0x87, 0x06, 0x89, 0x87, 0x05,
+ 0xb4, 0x15, 0x00, 0x91, 0x15, 0x07, 0xa6, 0x50,
+ 0x08, 0xdf, 0x81, 0x00, 0x93, 0x85, 0x0a, 0x91,
+ 0x43, 0x00, 0xae, 0x43, 0x3d, 0x86, 0x5f, 0x00,
+ 0x80, 0x5f, 0x00, 0x83, 0x5f, 0x00, 0x8e, 0x5f,
+ 0x00, 0x8a, 0x5f, 0x05, 0xba, 0x45, 0x04, 0x89,
+ 0x45, 0x05, 0x83, 0x2b, 0x00, 0x87, 0x2b, 0x01,
+ 0x81, 0x2b, 0x01, 0x95, 0x2b, 0x00, 0x86, 0x2b,
+ 0x00, 0x81, 0x2b, 0x00, 0x84, 0x2b, 0x00, 0x80,
+ 0x38, 0x88, 0x2b, 0x01, 0x81, 0x2b, 0x01, 0x82,
+ 0x2b, 0x01, 0x80, 0x2b, 0x05, 0x80, 0x2b, 0x04,
+ 0x86, 0x2b, 0x01, 0x86, 0x2b, 0x02, 0x84, 0x2b,
+ 0x60, 0x2a, 0xdb, 0x65, 0x00, 0x84, 0x65, 0x1d,
+ 0xc7, 0x99, 0x07, 0x89, 0x99, 0x60, 0x45, 0xb5,
+ 0x83, 0x01, 0xa5, 0x83, 0x21, 0xc4, 0x5c, 0x0a,
+ 0x89, 0x5c, 0x05, 0x8c, 0x5d, 0x12, 0xb9, 0x91,
+ 0x05, 0x89, 0x91, 0x35, 0x9a, 0x02, 0x01, 0x8e,
+ 0x02, 0x03, 0x96, 0x02, 0x60, 0x58, 0xbb, 0x22,
+ 0x60, 0x03, 0xd2, 0xa0, 0x0b, 0x80, 0xa0, 0x86,
+ 0x21, 0x01, 0x80, 0x21, 0x01, 0x87, 0x21, 0x00,
+ 0x81, 0x21, 0x00, 0x9d, 0x21, 0x00, 0x81, 0x21,
+ 0x01, 0x8b, 0x21, 0x08, 0x89, 0x21, 0x45, 0x87,
+ 0x63, 0x01, 0xad, 0x63, 0x01, 0x8a, 0x63, 0x1a,
+ 0xc7, 0xa3, 0x07, 0xd2, 0x88, 0x0c, 0x8f, 0x12,
+ 0xb8, 0x79, 0x06, 0x89, 0x20, 0x60, 0x95, 0x88,
+ 0x0c, 0x00, 0xac, 0x0c, 0x00, 0x8d, 0x0c, 0x09,
+ 0x9c, 0x0c, 0x02, 0x9f, 0x54, 0x01, 0x95, 0x54,
+ 0x00, 0x8d, 0x54, 0x48, 0x86, 0x55, 0x00, 0x81,
+ 0x55, 0x00, 0xab, 0x55, 0x02, 0x80, 0x55, 0x00,
+ 0x81, 0x55, 0x00, 0x88, 0x55, 0x07, 0x89, 0x55,
+ 0x05, 0x85, 0x2e, 0x00, 0x81, 0x2e, 0x00, 0xa4,
+ 0x2e, 0x00, 0x81, 0x2e, 0x00, 0x85, 0x2e, 0x06,
+ 0x89, 0x2e, 0x60, 0xd5, 0x98, 0x4f, 0x06, 0x90,
+ 0x3f, 0x00, 0xa8, 0x3f, 0x02, 0x9b, 0x3f, 0x55,
+ 0x80, 0x4c, 0x0e, 0xb1, 0x92, 0x0c, 0x80, 0x92,
+ 0xe3, 0x39, 0x1b, 0x60, 0x05, 0xe0, 0x0e, 0x1b,
+ 0x00, 0x84, 0x1b, 0x0a, 0xe0, 0x63, 0x1b, 0x69,
+ 0xeb, 0xe0, 0x02, 0x1e, 0x0c, 0xe3, 0xf5, 0x24,
+ 0x6f, 0x49, 0xe1, 0xe6, 0x03, 0x70, 0x11, 0x58,
+ 0xe1, 0xd8, 0x08, 0x06, 0x9e, 0x5e, 0x00, 0x89,
+ 0x5e, 0x03, 0x81, 0x5e, 0xce, 0x9a, 0x00, 0x89,
+ 0x9a, 0x05, 0x9d, 0x09, 0x01, 0x85, 0x09, 0x09,
+ 0xc5, 0x77, 0x09, 0x89, 0x77, 0x00, 0x86, 0x77,
+ 0x00, 0x94, 0x77, 0x04, 0x92, 0x77, 0x62, 0x4f,
+ 0xda, 0x56, 0x60, 0x04, 0xca, 0x5b, 0x03, 0xb8,
+ 0x5b, 0x06, 0x90, 0x5b, 0x3f, 0x80, 0x93, 0x80,
+ 0x67, 0x81, 0x30, 0x80, 0x44, 0x0a, 0x81, 0x30,
+ 0x0d, 0xf0, 0x07, 0x97, 0x93, 0x07, 0xe2, 0x9f,
+ 0x93, 0xe1, 0x75, 0x44, 0x29, 0x88, 0x93, 0x70,
+ 0x12, 0x86, 0x83, 0x3e, 0x00, 0x86, 0x3e, 0x00,
+ 0x81, 0x3e, 0x00, 0x80, 0x3e, 0xe0, 0xbe, 0x36,
+ 0x82, 0x3e, 0x0e, 0x80, 0x36, 0x1c, 0x82, 0x36,
+ 0x01, 0x80, 0x3e, 0x0d, 0x83, 0x3e, 0x07, 0xe1,
+ 0x2b, 0x67, 0x68, 0xa3, 0xe0, 0x0a, 0x23, 0x04,
+ 0x8c, 0x23, 0x02, 0x88, 0x23, 0x06, 0x89, 0x23,
+ 0x01, 0x83, 0x23, 0x83, 0x19, 0x70, 0x01, 0xfb,
+ 0xad, 0x38, 0x01, 0x96, 0x38, 0x08, 0xe0, 0x13,
+ 0x19, 0x3b, 0xe0, 0x95, 0x19, 0x09, 0xa6, 0x19,
+ 0x01, 0xbd, 0x19, 0x82, 0x38, 0x90, 0x19, 0x87,
+ 0x38, 0x81, 0x19, 0x86, 0x38, 0x9d, 0x19, 0x83,
+ 0x38, 0xbc, 0x19, 0x14, 0xc5, 0x2c, 0x60, 0x19,
+ 0x93, 0x19, 0x0b, 0x93, 0x19, 0x0b, 0xd6, 0x19,
+ 0x08, 0x98, 0x19, 0x60, 0x26, 0xd4, 0x19, 0x00,
+ 0xc6, 0x19, 0x00, 0x81, 0x19, 0x01, 0x80, 0x19,
+ 0x01, 0x81, 0x19, 0x01, 0x83, 0x19, 0x00, 0x8b,
+ 0x19, 0x00, 0x80, 0x19, 0x00, 0x86, 0x19, 0x00,
+ 0xc0, 0x19, 0x00, 0x83, 0x19, 0x01, 0x87, 0x19,
+ 0x00, 0x86, 0x19, 0x00, 0x9b, 0x19, 0x00, 0x83,
+ 0x19, 0x00, 0x84, 0x19, 0x00, 0x80, 0x19, 0x02,
+ 0x86, 0x19, 0x00, 0xe0, 0xf3, 0x19, 0x01, 0xe0,
+ 0xc3, 0x19, 0x01, 0xb1, 0x19, 0xe2, 0x2b, 0x84,
+ 0x0e, 0x84, 0x84, 0x00, 0x8e, 0x84, 0x63, 0xef,
+ 0x9e, 0x47, 0x05, 0x85, 0x47, 0x60, 0x74, 0x86,
+ 0x29, 0x00, 0x90, 0x29, 0x01, 0x86, 0x29, 0x00,
+ 0x81, 0x29, 0x00, 0x84, 0x29, 0x04, 0xbd, 0x1d,
+ 0x20, 0x80, 0x1d, 0x60, 0x0f, 0xac, 0x68, 0x02,
+ 0x8d, 0x68, 0x01, 0x89, 0x68, 0x03, 0x81, 0x68,
+ 0x60, 0xdf, 0x9e, 0x9b, 0x10, 0xb9, 0x9f, 0x04,
+ 0x80, 0x9f, 0x61, 0x6f, 0xa9, 0x62, 0x62, 0x85,
+ 0x86, 0x27, 0x00, 0x83, 0x27, 0x00, 0x81, 0x27,
+ 0x00, 0x8e, 0x27, 0x00, 0xe0, 0x64, 0x58, 0x01,
+ 0x8f, 0x58, 0x28, 0xcb, 0x01, 0x03, 0x89, 0x01,
+ 0x03, 0x81, 0x01, 0x62, 0xb0, 0xc3, 0x19, 0x4b,
+ 0xbc, 0x19, 0x60, 0x61, 0x83, 0x04, 0x00, 0x9a,
+ 0x04, 0x00, 0x81, 0x04, 0x00, 0x80, 0x04, 0x01,
+ 0x80, 0x04, 0x00, 0x89, 0x04, 0x00, 0x83, 0x04,
+ 0x00, 0x80, 0x04, 0x00, 0x80, 0x04, 0x05, 0x80,
+ 0x04, 0x03, 0x80, 0x04, 0x00, 0x80, 0x04, 0x00,
+ 0x80, 0x04, 0x00, 0x82, 0x04, 0x00, 0x81, 0x04,
+ 0x00, 0x80, 0x04, 0x01, 0x80, 0x04, 0x00, 0x80,
+ 0x04, 0x00, 0x80, 0x04, 0x00, 0x80, 0x04, 0x00,
+ 0x80, 0x04, 0x00, 0x81, 0x04, 0x00, 0x80, 0x04,
+ 0x01, 0x83, 0x04, 0x00, 0x86, 0x04, 0x00, 0x83,
+ 0x04, 0x00, 0x83, 0x04, 0x00, 0x80, 0x04, 0x00,
+ 0x89, 0x04, 0x00, 0x90, 0x04, 0x04, 0x82, 0x04,
+ 0x00, 0x84, 0x04, 0x00, 0x90, 0x04, 0x33, 0x81,
+ 0x04, 0x60, 0xad, 0xab, 0x19, 0x03, 0xe0, 0x03,
+ 0x19, 0x0b, 0x8e, 0x19, 0x01, 0x8e, 0x19, 0x00,
+ 0x8e, 0x19, 0x00, 0xa4, 0x19, 0x09, 0xe0, 0x4d,
+ 0x19, 0x37, 0x99, 0x19, 0x80, 0x36, 0x81, 0x19,
+ 0x0c, 0xab, 0x19, 0x03, 0x88, 0x19, 0x06, 0x81,
+ 0x19, 0x0d, 0x85, 0x19, 0x60, 0x39, 0xe3, 0x77,
+ 0x19, 0x03, 0x90, 0x19, 0x02, 0x8c, 0x19, 0x02,
+ 0xe0, 0x16, 0x19, 0x03, 0xde, 0x19, 0x05, 0x8b,
+ 0x19, 0x03, 0x80, 0x19, 0x0e, 0x8b, 0x19, 0x03,
+ 0xb7, 0x19, 0x07, 0x89, 0x19, 0x05, 0xa7, 0x19,
+ 0x07, 0x9d, 0x19, 0x01, 0x81, 0x19, 0x4d, 0xe0,
+ 0xf3, 0x19, 0x0b, 0x8d, 0x19, 0x01, 0x8c, 0x19,
+ 0x02, 0x88, 0x19, 0x06, 0xad, 0x19, 0x00, 0x86,
+ 0x19, 0x07, 0x8d, 0x19, 0x03, 0x88, 0x19, 0x06,
+ 0x88, 0x19, 0x06, 0xe0, 0x32, 0x19, 0x00, 0xb6,
+ 0x19, 0x24, 0x89, 0x19, 0x63, 0xa5, 0xf0, 0x96,
+ 0x7f, 0x30, 0x1f, 0xef, 0xd9, 0x30, 0x05, 0xe0,
+ 0x7d, 0x30, 0x01, 0xf0, 0x06, 0x21, 0x30, 0x0d,
+ 0xf0, 0x0c, 0xd0, 0x30, 0x6b, 0xbe, 0xe1, 0xbd,
+ 0x30, 0x65, 0x81, 0xf0, 0x02, 0xea, 0x30, 0x04,
+ 0xef, 0xff, 0x30, 0x7a, 0xcb, 0xf0, 0x80, 0x19,
+ 0x1d, 0xdf, 0x19, 0x60, 0x1f, 0xe0, 0x8f, 0x38,
+};
+
+static const uint8_t unicode_script_ext_table[828] = {
+ 0x82, 0xc1, 0x00, 0x00, 0x01, 0x2c, 0x01, 0x00,
+ 0x00, 0x01, 0x2c, 0x1c, 0x00, 0x0c, 0x01, 0x47,
+ 0x80, 0x92, 0x00, 0x00, 0x02, 0x1d, 0x6e, 0x00,
+ 0x02, 0x1d, 0x29, 0x01, 0x02, 0x1d, 0x47, 0x00,
+ 0x02, 0x1d, 0x29, 0x81, 0x03, 0x00, 0x00, 0x06,
+ 0x04, 0x66, 0x32, 0x8b, 0x95, 0xa1, 0x0d, 0x00,
+ 0x00, 0x06, 0x04, 0x66, 0x32, 0x8b, 0x95, 0xa1,
+ 0x00, 0x03, 0x04, 0x8b, 0x95, 0x01, 0x00, 0x00,
+ 0x07, 0x01, 0x04, 0x66, 0x32, 0x8b, 0x95, 0xa1,
+ 0x1f, 0x00, 0x00, 0x09, 0x01, 0x04, 0x52, 0x53,
+ 0x73, 0x7c, 0x32, 0x86, 0x8b, 0x09, 0x00, 0x0a,
+ 0x02, 0x04, 0x8b, 0x09, 0x00, 0x09, 0x03, 0x04,
+ 0x95, 0xa1, 0x05, 0x00, 0x00, 0x02, 0x04, 0x8b,
+ 0x62, 0x00, 0x00, 0x02, 0x04, 0x32, 0x81, 0xfb,
+ 0x00, 0x00, 0x0d, 0x0b, 0x20, 0x2b, 0x2d, 0x2f,
+ 0x3d, 0x47, 0x51, 0x74, 0x81, 0x92, 0x94, 0x99,
+ 0x00, 0x0c, 0x0b, 0x20, 0x2b, 0x2d, 0x2f, 0x3d,
+ 0x47, 0x51, 0x74, 0x92, 0x94, 0x99, 0x10, 0x00,
+ 0x00, 0x14, 0x0b, 0x20, 0x22, 0x2e, 0x55, 0x2b,
+ 0x2d, 0x2f, 0x3d, 0x50, 0x51, 0x63, 0x74, 0x45,
+ 0x85, 0x8a, 0x91, 0x92, 0x94, 0x99, 0x00, 0x15,
+ 0x0b, 0x20, 0x22, 0x2e, 0x55, 0x2b, 0x2d, 0x2f,
+ 0x3d, 0x49, 0x50, 0x51, 0x63, 0x74, 0x45, 0x85,
+ 0x8a, 0x91, 0x92, 0x94, 0x99, 0x09, 0x04, 0x20,
+ 0x22, 0x3c, 0x50, 0x75, 0x00, 0x09, 0x03, 0x0b,
+ 0x15, 0x8a, 0x75, 0x00, 0x09, 0x02, 0x2f, 0x5f,
+ 0x75, 0x00, 0x09, 0x02, 0x2d, 0x43, 0x80, 0x75,
+ 0x00, 0x0d, 0x02, 0x2b, 0x92, 0x80, 0x71, 0x00,
+ 0x09, 0x02, 0x3d, 0x63, 0x82, 0xcf, 0x00, 0x09,
+ 0x03, 0x15, 0x60, 0x8e, 0x80, 0x30, 0x00, 0x00,
+ 0x02, 0x28, 0x47, 0x85, 0xb8, 0x00, 0x01, 0x04,
+ 0x11, 0x33, 0x8d, 0x8c, 0x80, 0x4a, 0x00, 0x01,
+ 0x02, 0x5d, 0x7a, 0x00, 0x00, 0x00, 0x02, 0x5d,
+ 0x7a, 0x84, 0x49, 0x00, 0x00, 0x04, 0x0b, 0x20,
+ 0x2b, 0x3d, 0x00, 0x01, 0x20, 0x00, 0x04, 0x0b,
+ 0x20, 0x2b, 0x3d, 0x00, 0x02, 0x20, 0x2b, 0x00,
+ 0x01, 0x20, 0x01, 0x02, 0x0b, 0x20, 0x00, 0x02,
+ 0x20, 0x81, 0x00, 0x02, 0x0b, 0x20, 0x00, 0x02,
+ 0x20, 0x81, 0x00, 0x06, 0x20, 0x3d, 0x51, 0x74,
+ 0x92, 0x94, 0x00, 0x01, 0x20, 0x01, 0x02, 0x20,
+ 0x81, 0x01, 0x01, 0x20, 0x00, 0x02, 0x20, 0x81,
+ 0x00, 0x02, 0x0b, 0x20, 0x06, 0x01, 0x20, 0x00,
+ 0x02, 0x20, 0x63, 0x00, 0x02, 0x0b, 0x20, 0x01,
+ 0x01, 0x20, 0x00, 0x02, 0x0b, 0x20, 0x03, 0x01,
+ 0x20, 0x00, 0x08, 0x0b, 0x20, 0x2b, 0x3d, 0x63,
+ 0x74, 0x94, 0x99, 0x00, 0x02, 0x20, 0x2b, 0x00,
+ 0x03, 0x20, 0x2b, 0x3d, 0x01, 0x02, 0x0b, 0x20,
+ 0x00, 0x01, 0x0b, 0x01, 0x02, 0x20, 0x2b, 0x00,
+ 0x01, 0x63, 0x80, 0x44, 0x00, 0x01, 0x01, 0x2c,
+ 0x35, 0x00, 0x00, 0x02, 0x1d, 0x8b, 0x00, 0x00,
+ 0x00, 0x01, 0x8b, 0x81, 0xb3, 0x00, 0x00, 0x02,
+ 0x47, 0x5d, 0x80, 0x3f, 0x00, 0x00, 0x03, 0x20,
+ 0x2b, 0x47, 0x8c, 0xd1, 0x00, 0x00, 0x02, 0x1d,
+ 0x29, 0x81, 0x3c, 0x00, 0x01, 0x06, 0x0d, 0x31,
+ 0x30, 0x36, 0x3e, 0xa2, 0x00, 0x05, 0x0d, 0x31,
+ 0x30, 0x36, 0x3e, 0x01, 0x00, 0x00, 0x01, 0x30,
+ 0x00, 0x00, 0x09, 0x06, 0x0d, 0x31, 0x30, 0x36,
+ 0x3e, 0xa2, 0x00, 0x00, 0x00, 0x05, 0x0d, 0x31,
+ 0x30, 0x36, 0x3e, 0x07, 0x06, 0x0d, 0x31, 0x30,
+ 0x36, 0x3e, 0xa2, 0x03, 0x05, 0x0d, 0x31, 0x30,
+ 0x36, 0x3e, 0x09, 0x00, 0x03, 0x02, 0x0d, 0x30,
+ 0x01, 0x00, 0x00, 0x05, 0x0d, 0x31, 0x30, 0x36,
+ 0x3e, 0x04, 0x02, 0x36, 0x3e, 0x00, 0x00, 0x00,
+ 0x05, 0x0d, 0x31, 0x30, 0x36, 0x3e, 0x03, 0x00,
+ 0x01, 0x03, 0x30, 0x36, 0x3e, 0x01, 0x01, 0x30,
+ 0x58, 0x00, 0x03, 0x02, 0x36, 0x3e, 0x02, 0x00,
+ 0x00, 0x02, 0x36, 0x3e, 0x59, 0x00, 0x00, 0x06,
+ 0x0d, 0x31, 0x30, 0x36, 0x3e, 0xa2, 0x00, 0x02,
+ 0x36, 0x3e, 0x80, 0x12, 0x00, 0x0f, 0x01, 0x30,
+ 0x1f, 0x00, 0x23, 0x01, 0x30, 0x3b, 0x00, 0x27,
+ 0x01, 0x30, 0x37, 0x00, 0x30, 0x01, 0x30, 0x0e,
+ 0x00, 0x0b, 0x01, 0x30, 0x32, 0x00, 0x00, 0x01,
+ 0x30, 0x57, 0x00, 0x18, 0x01, 0x30, 0x09, 0x00,
+ 0x04, 0x01, 0x30, 0x5f, 0x00, 0x1e, 0x01, 0x30,
+ 0xc0, 0x31, 0xef, 0x00, 0x00, 0x02, 0x1d, 0x29,
+ 0x80, 0x0f, 0x00, 0x07, 0x02, 0x30, 0x47, 0x80,
+ 0xa7, 0x00, 0x02, 0x0e, 0x20, 0x22, 0x2d, 0x2f,
+ 0x43, 0x3d, 0x3c, 0x50, 0x51, 0x5c, 0x63, 0x45,
+ 0x91, 0x99, 0x02, 0x0d, 0x20, 0x22, 0x2d, 0x2f,
+ 0x43, 0x3d, 0x3c, 0x50, 0x5c, 0x63, 0x45, 0x91,
+ 0x99, 0x03, 0x0b, 0x20, 0x22, 0x2d, 0x2f, 0x43,
+ 0x3c, 0x50, 0x5c, 0x45, 0x91, 0x99, 0x80, 0x36,
+ 0x00, 0x00, 0x02, 0x0b, 0x20, 0x00, 0x00, 0x00,
+ 0x02, 0x20, 0x92, 0x39, 0x00, 0x00, 0x03, 0x40,
+ 0x47, 0x60, 0x80, 0x1f, 0x00, 0x00, 0x02, 0x10,
+ 0x3b, 0xc0, 0x12, 0xed, 0x00, 0x01, 0x02, 0x04,
+ 0x66, 0x80, 0x31, 0x00, 0x00, 0x02, 0x04, 0x95,
+ 0x09, 0x00, 0x00, 0x02, 0x04, 0x95, 0x46, 0x00,
+ 0x01, 0x05, 0x0d, 0x31, 0x30, 0x36, 0x3e, 0x80,
+ 0x99, 0x00, 0x04, 0x06, 0x0d, 0x31, 0x30, 0x36,
+ 0x3e, 0xa2, 0x09, 0x00, 0x00, 0x02, 0x36, 0x3e,
+ 0x2c, 0x00, 0x01, 0x02, 0x36, 0x3e, 0x80, 0xdf,
+ 0x00, 0x01, 0x03, 0x1e, 0x1c, 0x4b, 0x00, 0x02,
+ 0x1c, 0x4b, 0x03, 0x00, 0x2c, 0x03, 0x1c, 0x4a,
+ 0x4b, 0x02, 0x00, 0x08, 0x02, 0x1c, 0x4b, 0x81,
+ 0x1f, 0x00, 0x1b, 0x02, 0x04, 0x1a, 0x87, 0x75,
+ 0x00, 0x00, 0x02, 0x53, 0x73, 0x87, 0x8d, 0x00,
+ 0x00, 0x02, 0x2b, 0x92, 0x00, 0x00, 0x00, 0x02,
+ 0x2b, 0x92, 0x36, 0x00, 0x01, 0x02, 0x2b, 0x92,
+ 0x8c, 0x12, 0x00, 0x01, 0x02, 0x2b, 0x92, 0x00,
+ 0x00, 0x00, 0x02, 0x2b, 0x92, 0xc0, 0x5c, 0x4b,
+ 0x00, 0x03, 0x01, 0x23, 0x96, 0x3b, 0x00, 0x11,
+ 0x01, 0x30, 0x9e, 0x5d, 0x00, 0x01, 0x01, 0x30,
+ 0xce, 0xcd, 0x2d, 0x00,
+};
+
+static const uint8_t unicode_prop_Hyphen_table[28] = {
+ 0xac, 0x80, 0xfe, 0x80, 0x44, 0xdb, 0x80, 0x52,
+ 0x7a, 0x80, 0x48, 0x08, 0x81, 0x4e, 0x04, 0x80,
+ 0x42, 0xe2, 0x80, 0x60, 0xcd, 0x66, 0x80, 0x40,
+ 0xa8, 0x80, 0xd6, 0x80,
+};
+
+static const uint8_t unicode_prop_Other_Math_table[200] = {
+ 0xdd, 0x80, 0x43, 0x70, 0x11, 0x80, 0x99, 0x09,
+ 0x81, 0x5c, 0x1f, 0x80, 0x9a, 0x82, 0x8a, 0x80,
+ 0x9f, 0x83, 0x97, 0x81, 0x8d, 0x81, 0xc0, 0x8c,
+ 0x18, 0x11, 0x1c, 0x91, 0x03, 0x01, 0x89, 0x00,
+ 0x14, 0x28, 0x11, 0x09, 0x02, 0x05, 0x13, 0x24,
+ 0xca, 0x21, 0x18, 0x08, 0x08, 0x00, 0x21, 0x0b,
+ 0x0b, 0x91, 0x09, 0x00, 0x06, 0x00, 0x29, 0x41,
+ 0x21, 0x83, 0x40, 0xa7, 0x08, 0x80, 0x97, 0x80,
+ 0x90, 0x80, 0x41, 0xbc, 0x81, 0x8b, 0x88, 0x24,
+ 0x21, 0x09, 0x14, 0x8d, 0x00, 0x01, 0x85, 0x97,
+ 0x81, 0xb8, 0x00, 0x80, 0x9c, 0x83, 0x88, 0x81,
+ 0x41, 0x55, 0x81, 0x9e, 0x89, 0x41, 0x92, 0x95,
+ 0xbe, 0x83, 0x9f, 0x81, 0x60, 0xd4, 0x62, 0x00,
+ 0x03, 0x80, 0x40, 0xd2, 0x00, 0x80, 0x60, 0xd4,
+ 0xc0, 0xd4, 0x80, 0xc6, 0x01, 0x08, 0x09, 0x0b,
+ 0x80, 0x8b, 0x00, 0x06, 0x80, 0xc0, 0x03, 0x0f,
+ 0x06, 0x80, 0x9b, 0x03, 0x04, 0x00, 0x16, 0x80,
+ 0x41, 0x53, 0x81, 0x98, 0x80, 0x98, 0x80, 0x9e,
+ 0x80, 0x98, 0x80, 0x9e, 0x80, 0x98, 0x80, 0x9e,
+ 0x80, 0x98, 0x80, 0x9e, 0x80, 0x98, 0x07, 0x81,
+ 0xb1, 0x55, 0xff, 0x18, 0x9a, 0x01, 0x00, 0x08,
+ 0x80, 0x89, 0x03, 0x00, 0x00, 0x28, 0x18, 0x00,
+ 0x00, 0x02, 0x01, 0x00, 0x08, 0x00, 0x00, 0x00,
+ 0x00, 0x01, 0x00, 0x0b, 0x06, 0x03, 0x03, 0x00,
+ 0x80, 0x89, 0x80, 0x90, 0x22, 0x04, 0x80, 0x90,
+};
+
+static const uint8_t unicode_prop_Other_Alphabetic_table[428] = {
+ 0x43, 0x44, 0x80, 0x42, 0x69, 0x8d, 0x00, 0x01,
+ 0x01, 0x00, 0xc7, 0x8a, 0xaf, 0x8c, 0x06, 0x8f,
+ 0x80, 0xe4, 0x33, 0x19, 0x0b, 0x80, 0xa2, 0x80,
+ 0x9d, 0x8f, 0xe5, 0x8a, 0xe4, 0x0a, 0x88, 0x02,
+ 0x03, 0x40, 0xa6, 0x8b, 0x16, 0x85, 0x93, 0xb5,
+ 0x09, 0x8e, 0x01, 0x22, 0x89, 0x81, 0x9c, 0x82,
+ 0xb9, 0x31, 0x09, 0x81, 0x89, 0x80, 0x89, 0x81,
+ 0x9c, 0x82, 0xb9, 0x23, 0x09, 0x0b, 0x80, 0x9d,
+ 0x0a, 0x80, 0x8a, 0x82, 0xb9, 0x38, 0x10, 0x81,
+ 0x94, 0x81, 0x95, 0x13, 0x82, 0xb9, 0x31, 0x09,
+ 0x81, 0x88, 0x81, 0x89, 0x81, 0x9d, 0x80, 0xba,
+ 0x22, 0x10, 0x82, 0x89, 0x80, 0xa7, 0x84, 0xb8,
+ 0x30, 0x10, 0x17, 0x81, 0x8a, 0x81, 0x9c, 0x82,
+ 0xb9, 0x30, 0x10, 0x17, 0x81, 0x8a, 0x81, 0x8e,
+ 0x80, 0x8b, 0x83, 0xb9, 0x30, 0x10, 0x82, 0x89,
+ 0x80, 0x89, 0x81, 0x9c, 0x82, 0xca, 0x28, 0x00,
+ 0x87, 0x91, 0x81, 0xbc, 0x01, 0x86, 0x91, 0x80,
+ 0xe2, 0x01, 0x28, 0x81, 0x8f, 0x80, 0x40, 0xa2,
+ 0x92, 0x88, 0x8a, 0x80, 0xa3, 0xed, 0x8b, 0x00,
+ 0x0b, 0x96, 0x1b, 0x10, 0x11, 0x32, 0x83, 0x8c,
+ 0x8b, 0x00, 0x89, 0x83, 0x46, 0x73, 0x81, 0x9d,
+ 0x81, 0x9d, 0x81, 0x9d, 0x81, 0xc1, 0x92, 0x40,
+ 0xbb, 0x81, 0xa1, 0x80, 0xf5, 0x8b, 0x83, 0x88,
+ 0x40, 0xdd, 0x84, 0xb8, 0x89, 0x81, 0x93, 0xc9,
+ 0x81, 0x8a, 0x82, 0xb0, 0x84, 0xaf, 0x8e, 0xbb,
+ 0x82, 0x9d, 0x88, 0x09, 0xb8, 0x8a, 0xb1, 0x92,
+ 0x41, 0xaf, 0x8d, 0x46, 0xc0, 0xb3, 0x48, 0xf5,
+ 0x9f, 0x60, 0x78, 0x73, 0x87, 0xa1, 0x81, 0x41,
+ 0x61, 0x07, 0x80, 0x96, 0x84, 0xd7, 0x81, 0xb1,
+ 0x8f, 0x00, 0xb8, 0x80, 0xa5, 0x84, 0x9b, 0x8b,
+ 0xac, 0x83, 0xaf, 0x8b, 0xa4, 0x80, 0xc2, 0x8d,
+ 0x8b, 0x07, 0x81, 0xac, 0x82, 0xb1, 0x00, 0x11,
+ 0x0c, 0x80, 0xab, 0x24, 0x80, 0x40, 0xec, 0x87,
+ 0x60, 0x4f, 0x32, 0x80, 0x48, 0x56, 0x84, 0x46,
+ 0x85, 0x10, 0x0c, 0x83, 0x43, 0x13, 0x83, 0x41,
+ 0x82, 0x81, 0x41, 0x52, 0x82, 0xb4, 0x8d, 0xac,
+ 0x81, 0x8a, 0x82, 0xac, 0x88, 0x88, 0x80, 0xbc,
+ 0x82, 0xa3, 0x8b, 0x91, 0x81, 0xb8, 0x82, 0xaf,
+ 0x8c, 0x8d, 0x81, 0xdb, 0x88, 0x08, 0x28, 0x08,
+ 0x40, 0x9c, 0x89, 0x96, 0x83, 0xb9, 0x31, 0x09,
+ 0x81, 0x89, 0x80, 0x89, 0x81, 0x40, 0xd0, 0x8c,
+ 0x02, 0xe9, 0x91, 0x40, 0xec, 0x31, 0x86, 0x9c,
+ 0x81, 0xd1, 0x8e, 0x00, 0xe9, 0x8a, 0xe6, 0x8d,
+ 0x41, 0x00, 0x8c, 0x40, 0xf6, 0x28, 0x09, 0x0a,
+ 0x00, 0x80, 0x40, 0x8d, 0x31, 0x2b, 0x80, 0x9b,
+ 0x89, 0xa9, 0x20, 0x83, 0x91, 0x8a, 0xad, 0x8d,
+ 0x41, 0x96, 0x38, 0x86, 0xd2, 0x95, 0x80, 0x8d,
+ 0xf9, 0x2a, 0x00, 0x08, 0x10, 0x02, 0x80, 0xc1,
+ 0x20, 0x08, 0x83, 0x41, 0x5b, 0x83, 0x88, 0x08,
+ 0x80, 0xaf, 0x32, 0x82, 0x60, 0x50, 0x0d, 0x00,
+ 0xb6, 0x33, 0xdc, 0x81, 0x60, 0x4c, 0xab, 0x80,
+ 0x60, 0x23, 0x60, 0x30, 0x90, 0x0e, 0x01, 0x04,
+ 0xe3, 0x80, 0x48, 0xb6, 0x80, 0x47, 0xe7, 0x99,
+ 0x85, 0x99, 0x85, 0x99,
+};
+
+static const uint8_t unicode_prop_Other_Lowercase_table[69] = {
+ 0x40, 0xa9, 0x80, 0x8e, 0x80, 0x41, 0xf4, 0x88,
+ 0x31, 0x9d, 0x84, 0xdf, 0x80, 0xb3, 0x80, 0x4d,
+ 0x80, 0x80, 0x4c, 0x2e, 0xbe, 0x8c, 0x80, 0xa1,
+ 0xa4, 0x42, 0xb0, 0x80, 0x8c, 0x80, 0x8f, 0x8c,
+ 0x40, 0xd2, 0x8f, 0x43, 0x4f, 0x99, 0x47, 0x91,
+ 0x81, 0x60, 0x7a, 0x1d, 0x81, 0x40, 0xd1, 0x80,
+ 0x40, 0x80, 0x12, 0x81, 0x43, 0x61, 0x83, 0x88,
+ 0x80, 0x60, 0x5c, 0x15, 0x01, 0x10, 0xa9, 0x80,
+ 0x88, 0x60, 0xd8, 0x74, 0xbd,
+};
+
+static const uint8_t unicode_prop_Other_Uppercase_table[15] = {
+ 0x60, 0x21, 0x5f, 0x8f, 0x43, 0x45, 0x99, 0x61,
+ 0xcc, 0x5f, 0x99, 0x85, 0x99, 0x85, 0x99,
+};
+
+static const uint8_t unicode_prop_Other_Grapheme_Extend_table[65] = {
+ 0x49, 0xbd, 0x80, 0x97, 0x80, 0x41, 0x65, 0x80,
+ 0x97, 0x80, 0xe5, 0x80, 0x97, 0x80, 0x40, 0xe9,
+ 0x80, 0x91, 0x81, 0xe6, 0x80, 0x97, 0x80, 0xf6,
+ 0x80, 0x8e, 0x80, 0x4d, 0x54, 0x80, 0x44, 0xd5,
+ 0x80, 0x50, 0x20, 0x81, 0x60, 0xcf, 0x6d, 0x81,
+ 0x53, 0x9d, 0x80, 0x97, 0x80, 0x41, 0x57, 0x80,
+ 0x8b, 0x80, 0x40, 0xf0, 0x80, 0x43, 0x7f, 0x80,
+ 0x60, 0xb8, 0x33, 0x07, 0x84, 0x6c, 0x2e, 0xac,
+ 0xdf,
+};
+
+static const uint8_t unicode_prop_Other_Default_Ignorable_Code_Point_table[32] = {
+ 0x43, 0x4e, 0x80, 0x4e, 0x0e, 0x81, 0x46, 0x52,
+ 0x81, 0x48, 0xae, 0x80, 0x50, 0xfd, 0x80, 0x60,
+ 0xce, 0x3a, 0x80, 0xce, 0x88, 0x6d, 0x00, 0x06,
+ 0x00, 0x9d, 0xdf, 0xff, 0x40, 0xef, 0x4e, 0x0f,
+};
+
+static const uint8_t unicode_prop_Other_ID_Start_table[11] = {
+ 0x58, 0x84, 0x81, 0x48, 0x90, 0x80, 0x94, 0x80,
+ 0x4f, 0x6b, 0x81,
+};
+
+static const uint8_t unicode_prop_Other_ID_Continue_table[12] = {
+ 0x40, 0xb6, 0x80, 0x42, 0xce, 0x80, 0x4f, 0xe0,
+ 0x88, 0x46, 0x67, 0x80,
+};
+
+static const uint8_t unicode_prop_Prepended_Concatenation_Mark_table[19] = {
+ 0x45, 0xff, 0x85, 0x40, 0xd6, 0x80, 0xb0, 0x80,
+ 0x41, 0x7f, 0x81, 0xcf, 0x80, 0x61, 0x07, 0xd9,
+ 0x80, 0x8e, 0x80,
+};
+
+static const uint8_t unicode_prop_XID_Start1_table[31] = {
+ 0x43, 0x79, 0x80, 0x4a, 0xb7, 0x80, 0xfe, 0x80,
+ 0x60, 0x21, 0xe6, 0x81, 0x60, 0xcb, 0xc0, 0x85,
+ 0x41, 0x95, 0x81, 0xf3, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x80, 0x41, 0x1e, 0x81,
+};
+
+static const uint8_t unicode_prop_XID_Continue1_table[23] = {
+ 0x43, 0x79, 0x80, 0x60, 0x2d, 0x1f, 0x81, 0x60,
+ 0xcb, 0xc0, 0x85, 0x41, 0x95, 0x81, 0xf3, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80,
+};
+
+static const uint8_t unicode_prop_Changes_When_Titlecased1_table[22] = {
+ 0x41, 0xc3, 0x08, 0x08, 0x81, 0xa4, 0x81, 0x4e,
+ 0xdc, 0xaa, 0x0a, 0x4e, 0x87, 0x3f, 0x3f, 0x87,
+ 0x8b, 0x80, 0x8e, 0x80, 0xae, 0x80,
+};
+
+static const uint8_t unicode_prop_Changes_When_Casefolded1_table[29] = {
+ 0x41, 0xef, 0x80, 0x41, 0x9e, 0x80, 0x9e, 0x80,
+ 0x5a, 0xe4, 0x83, 0x40, 0xb5, 0x00, 0x00, 0x00,
+ 0x80, 0xde, 0x06, 0x06, 0x80, 0x8a, 0x09, 0x81,
+ 0x89, 0x10, 0x81, 0x8d, 0x80,
+};
+
+static const uint8_t unicode_prop_Changes_When_NFKC_Casefolded1_table[447] = {
+ 0x40, 0x9f, 0x06, 0x00, 0x01, 0x00, 0x01, 0x12,
+ 0x10, 0x82, 0xf3, 0x80, 0x8b, 0x80, 0x40, 0x84,
+ 0x01, 0x01, 0x80, 0xa2, 0x01, 0x80, 0x40, 0xbb,
+ 0x88, 0x9e, 0x29, 0x84, 0xda, 0x08, 0x81, 0x89,
+ 0x80, 0xa3, 0x04, 0x02, 0x04, 0x08, 0x07, 0x80,
+ 0x9e, 0x80, 0xa0, 0x82, 0x9c, 0x80, 0x42, 0x28,
+ 0x80, 0xd7, 0x83, 0x42, 0xde, 0x87, 0xfb, 0x08,
+ 0x80, 0xd2, 0x01, 0x80, 0xa1, 0x11, 0x80, 0x40,
+ 0xfc, 0x81, 0x42, 0xd4, 0x80, 0xfe, 0x80, 0xa7,
+ 0x81, 0xad, 0x80, 0xb5, 0x80, 0x88, 0x03, 0x03,
+ 0x03, 0x80, 0x8b, 0x80, 0x88, 0x00, 0x26, 0x80,
+ 0x90, 0x80, 0x88, 0x03, 0x03, 0x03, 0x80, 0x8b,
+ 0x80, 0x41, 0x41, 0x80, 0xe1, 0x81, 0x46, 0x52,
+ 0x81, 0xd4, 0x84, 0x45, 0x1b, 0x10, 0x8a, 0x80,
+ 0x91, 0x80, 0x9b, 0x8c, 0x80, 0xa1, 0xa4, 0x40,
+ 0xd5, 0x83, 0x40, 0xb5, 0x00, 0x00, 0x00, 0x80,
+ 0x99, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80,
+ 0xb7, 0x05, 0x00, 0x13, 0x05, 0x11, 0x02, 0x0c,
+ 0x11, 0x00, 0x00, 0x0c, 0x15, 0x05, 0x08, 0x8f,
+ 0x00, 0x20, 0x8b, 0x12, 0x2a, 0x08, 0x0b, 0x00,
+ 0x07, 0x82, 0x8c, 0x06, 0x92, 0x81, 0x9a, 0x80,
+ 0x8c, 0x8a, 0x80, 0xd6, 0x18, 0x10, 0x8a, 0x01,
+ 0x0c, 0x0a, 0x00, 0x10, 0x11, 0x02, 0x06, 0x05,
+ 0x1c, 0x85, 0x8f, 0x8f, 0x8f, 0x88, 0x80, 0x40,
+ 0xa1, 0x08, 0x81, 0x40, 0xf7, 0x81, 0x41, 0x34,
+ 0xd5, 0x99, 0x9a, 0x45, 0x20, 0x80, 0xe6, 0x82,
+ 0xe4, 0x80, 0x41, 0x9e, 0x81, 0x40, 0xf0, 0x80,
+ 0x41, 0x2e, 0x80, 0xd2, 0x80, 0x8b, 0x40, 0xd5,
+ 0xa9, 0x80, 0xb4, 0x00, 0x82, 0xdf, 0x09, 0x80,
+ 0xde, 0x80, 0xb0, 0xdd, 0x82, 0x8d, 0xdf, 0x9e,
+ 0x80, 0xa7, 0x87, 0xae, 0x80, 0x41, 0x7f, 0x60,
+ 0x72, 0x9b, 0x81, 0x40, 0xd1, 0x80, 0x40, 0x80,
+ 0x12, 0x81, 0x43, 0x61, 0x83, 0x88, 0x80, 0x60,
+ 0x4d, 0x95, 0x41, 0x0d, 0x08, 0x00, 0x81, 0x89,
+ 0x00, 0x00, 0x09, 0x82, 0xc3, 0x81, 0xe9, 0xc2,
+ 0x00, 0x97, 0x04, 0x00, 0x01, 0x01, 0x80, 0xeb,
+ 0xa0, 0x41, 0x6a, 0x91, 0xbf, 0x81, 0xb5, 0xa7,
+ 0x8c, 0x82, 0x99, 0x95, 0x94, 0x81, 0x8b, 0x80,
+ 0x92, 0x03, 0x1a, 0x00, 0x80, 0x40, 0x86, 0x08,
+ 0x80, 0x9f, 0x99, 0x40, 0x83, 0x15, 0x0d, 0x0d,
+ 0x0a, 0x16, 0x06, 0x80, 0x88, 0x47, 0x87, 0x20,
+ 0xa9, 0x80, 0x88, 0x60, 0xb4, 0xe4, 0x83, 0x54,
+ 0xb9, 0x86, 0x8d, 0x87, 0xbf, 0x85, 0x42, 0x3e,
+ 0xd4, 0x80, 0xc6, 0x01, 0x08, 0x09, 0x0b, 0x80,
+ 0x8b, 0x00, 0x06, 0x80, 0xc0, 0x03, 0x0f, 0x06,
+ 0x80, 0x9b, 0x03, 0x04, 0x00, 0x16, 0x80, 0x41,
+ 0x53, 0x81, 0x41, 0x23, 0x81, 0xb1, 0x48, 0x2f,
+ 0xbd, 0x4d, 0x91, 0x18, 0x9a, 0x01, 0x00, 0x08,
+ 0x80, 0x89, 0x03, 0x00, 0x00, 0x28, 0x18, 0x00,
+ 0x00, 0x02, 0x01, 0x00, 0x08, 0x00, 0x00, 0x00,
+ 0x00, 0x01, 0x00, 0x0b, 0x06, 0x03, 0x03, 0x00,
+ 0x80, 0x89, 0x80, 0x90, 0x22, 0x04, 0x80, 0x90,
+ 0x42, 0x43, 0x8a, 0x84, 0x9e, 0x80, 0x9f, 0x99,
+ 0x82, 0xa2, 0x80, 0xee, 0x82, 0x8c, 0xab, 0x83,
+ 0x88, 0x31, 0x49, 0x9d, 0x89, 0x60, 0xfc, 0x05,
+ 0x42, 0x1d, 0x6b, 0x05, 0xe1, 0x4f, 0xff,
+};
+
+static const uint8_t unicode_prop_ASCII_Hex_Digit_table[5] = {
+ 0xaf, 0x89, 0x35, 0x99, 0x85,
+};
+
+static const uint8_t unicode_prop_Bidi_Control_table[10] = {
+ 0x46, 0x1b, 0x80, 0x59, 0xf0, 0x81, 0x99, 0x84,
+ 0xb6, 0x83,
+};
+
+static const uint8_t unicode_prop_Dash_table[55] = {
+ 0xac, 0x80, 0x45, 0x5b, 0x80, 0xb2, 0x80, 0x4e,
+ 0x40, 0x80, 0x44, 0x04, 0x80, 0x48, 0x08, 0x85,
+ 0xbc, 0x80, 0xa6, 0x80, 0x8e, 0x80, 0x41, 0x85,
+ 0x80, 0x4c, 0x03, 0x01, 0x80, 0x9e, 0x0b, 0x80,
+ 0x9b, 0x80, 0x41, 0xbd, 0x80, 0x92, 0x80, 0xee,
+ 0x80, 0x60, 0xcd, 0x8f, 0x81, 0xa4, 0x80, 0x89,
+ 0x80, 0x40, 0xa8, 0x80, 0x4f, 0x9e, 0x80,
+};
+
+static const uint8_t unicode_prop_Deprecated_table[23] = {
+ 0x41, 0x48, 0x80, 0x45, 0x28, 0x80, 0x49, 0x02,
+ 0x00, 0x80, 0x48, 0x28, 0x81, 0x48, 0xc4, 0x85,
+ 0x42, 0xb8, 0x81, 0x6d, 0xdc, 0xd5, 0x80,
+};
+
+static const uint8_t unicode_prop_Diacritic_table[399] = {
+ 0xdd, 0x00, 0x80, 0xc6, 0x05, 0x03, 0x01, 0x81,
+ 0x41, 0xf6, 0x40, 0x9e, 0x07, 0x25, 0x90, 0x0b,
+ 0x80, 0x88, 0x81, 0x40, 0xfc, 0x84, 0x40, 0xd0,
+ 0x80, 0xb6, 0x90, 0x80, 0x9a, 0x00, 0x01, 0x00,
+ 0x40, 0x85, 0x3b, 0x81, 0x40, 0x85, 0x0b, 0x0a,
+ 0x82, 0xc2, 0x9a, 0xda, 0x8a, 0xb9, 0x8a, 0xa1,
+ 0x81, 0xfd, 0x87, 0xa8, 0x89, 0x8f, 0x9b, 0xbc,
+ 0x80, 0x8f, 0x02, 0x83, 0x9b, 0x80, 0xc9, 0x80,
+ 0x8f, 0x80, 0xed, 0x80, 0x8f, 0x80, 0xed, 0x80,
+ 0x8f, 0x80, 0xae, 0x82, 0xbb, 0x80, 0x8f, 0x06,
+ 0x80, 0xf6, 0x80, 0xed, 0x80, 0x8f, 0x80, 0xed,
+ 0x80, 0x8f, 0x80, 0xec, 0x81, 0x8f, 0x80, 0xfb,
+ 0x80, 0xfb, 0x28, 0x80, 0xea, 0x80, 0x8c, 0x84,
+ 0xca, 0x81, 0x9a, 0x00, 0x00, 0x03, 0x81, 0xc1,
+ 0x10, 0x81, 0xbd, 0x80, 0xef, 0x00, 0x81, 0xa7,
+ 0x0b, 0x84, 0x98, 0x30, 0x80, 0x89, 0x81, 0x42,
+ 0xc0, 0x82, 0x43, 0xb3, 0x81, 0x40, 0xb2, 0x8a,
+ 0x88, 0x80, 0x41, 0x5a, 0x82, 0x41, 0x38, 0x39,
+ 0x80, 0xaf, 0x8e, 0x81, 0x8a, 0xe7, 0x80, 0x8e,
+ 0x80, 0xa5, 0x88, 0xb5, 0x81, 0x40, 0x89, 0x81,
+ 0xbf, 0x85, 0xd1, 0x98, 0x18, 0x28, 0x0a, 0xb1,
+ 0xbe, 0xd8, 0x8b, 0xa4, 0x8a, 0x41, 0xbc, 0x00,
+ 0x82, 0x8a, 0x82, 0x8c, 0x82, 0x8c, 0x82, 0x8c,
+ 0x81, 0x4c, 0xef, 0x82, 0x41, 0x3c, 0x80, 0x41,
+ 0xf9, 0x85, 0xe8, 0x83, 0xde, 0x80, 0x60, 0x75,
+ 0x71, 0x80, 0x8b, 0x08, 0x80, 0x9b, 0x81, 0xd1,
+ 0x81, 0x8d, 0xa1, 0xe5, 0x82, 0xec, 0x81, 0x40,
+ 0xc9, 0x80, 0x9a, 0x91, 0xb8, 0x83, 0xa3, 0x80,
+ 0xde, 0x80, 0x8b, 0x80, 0xa3, 0x80, 0x40, 0x94,
+ 0x82, 0xc0, 0x83, 0xb2, 0x80, 0xe3, 0x84, 0x88,
+ 0x82, 0xff, 0x81, 0x60, 0x4f, 0x2f, 0x80, 0x43,
+ 0x00, 0x8f, 0x41, 0x0d, 0x00, 0x80, 0xae, 0x80,
+ 0xac, 0x81, 0xc2, 0x80, 0x42, 0xfb, 0x80, 0x44,
+ 0x9e, 0x28, 0xa9, 0x80, 0x88, 0x43, 0x29, 0x81,
+ 0x42, 0x3a, 0x85, 0x41, 0xd4, 0x82, 0xc5, 0x8a,
+ 0xb0, 0x83, 0x40, 0xbf, 0x80, 0xa8, 0x80, 0xc7,
+ 0x81, 0xf7, 0x81, 0xbd, 0x80, 0xcb, 0x80, 0x88,
+ 0x82, 0xe7, 0x81, 0x40, 0xb1, 0x81, 0xd0, 0x80,
+ 0x8f, 0x80, 0x97, 0x32, 0x84, 0x40, 0xcc, 0x02,
+ 0x80, 0xfa, 0x81, 0x40, 0xfa, 0x81, 0xfd, 0x80,
+ 0xf5, 0x81, 0xf2, 0x80, 0x41, 0x0c, 0x81, 0x41,
+ 0x01, 0x0b, 0x80, 0x40, 0x9b, 0x80, 0xd2, 0x80,
+ 0x91, 0x80, 0xd0, 0x80, 0x41, 0xa4, 0x80, 0x41,
+ 0x01, 0x00, 0x81, 0xd0, 0x80, 0x56, 0xae, 0x8e,
+ 0x60, 0x36, 0x99, 0x84, 0xba, 0x86, 0x44, 0x57,
+ 0x90, 0xcf, 0x81, 0x60, 0x3f, 0xfd, 0x18, 0x30,
+ 0x81, 0x5f, 0x00, 0xad, 0x81, 0x96, 0x42, 0x1f,
+ 0x12, 0x2f, 0x39, 0x86, 0x9d, 0x83, 0x4e, 0x81,
+ 0xbd, 0x40, 0xc1, 0x86, 0x41, 0x76, 0x80, 0xbc,
+ 0x83, 0x45, 0xdf, 0x86, 0xec, 0x10, 0x82,
+};
+
+static const uint8_t unicode_prop_Extender_table[92] = {
+ 0x40, 0xb6, 0x80, 0x42, 0x17, 0x81, 0x43, 0x6d,
+ 0x80, 0x41, 0xb8, 0x80, 0x43, 0x59, 0x80, 0x42,
+ 0xef, 0x80, 0xfe, 0x80, 0x49, 0x42, 0x80, 0xb7,
+ 0x80, 0x42, 0x62, 0x80, 0x41, 0x8d, 0x80, 0xc3,
+ 0x80, 0x53, 0x88, 0x80, 0xaa, 0x84, 0xe6, 0x81,
+ 0xdc, 0x82, 0x60, 0x6f, 0x15, 0x80, 0x45, 0xf5,
+ 0x80, 0x43, 0xc1, 0x80, 0x95, 0x80, 0x40, 0x88,
+ 0x80, 0xeb, 0x80, 0x94, 0x81, 0x60, 0x54, 0x7a,
+ 0x80, 0x48, 0x0f, 0x81, 0x4b, 0xd9, 0x80, 0x42,
+ 0x67, 0x82, 0x44, 0xce, 0x80, 0x60, 0x50, 0xa8,
+ 0x81, 0x44, 0x9b, 0x08, 0x80, 0x60, 0x71, 0x57,
+ 0x81, 0x48, 0x05, 0x82,
+};
+
+static const uint8_t unicode_prop_Hex_Digit_table[12] = {
+ 0xaf, 0x89, 0x35, 0x99, 0x85, 0x60, 0xfe, 0xa8,
+ 0x89, 0x35, 0x99, 0x85,
+};
+
+static const uint8_t unicode_prop_IDS_Binary_Operator_table[5] = {
+ 0x60, 0x2f, 0xef, 0x09, 0x87,
+};
+
+static const uint8_t unicode_prop_IDS_Trinary_Operator_table[4] = {
+ 0x60, 0x2f, 0xf1, 0x81,
+};
+
+static const uint8_t unicode_prop_Ideographic_table[69] = {
+ 0x60, 0x30, 0x05, 0x81, 0x98, 0x88, 0x8d, 0x82,
+ 0x43, 0xc4, 0x59, 0xbf, 0xbf, 0x60, 0x51, 0xff,
+ 0x60, 0x58, 0xff, 0x41, 0x6d, 0x81, 0xe9, 0x60,
+ 0x75, 0x09, 0x80, 0x9a, 0x57, 0xf7, 0x87, 0x44,
+ 0xd5, 0xa9, 0x88, 0x60, 0x24, 0x66, 0x41, 0x8b,
+ 0x60, 0x4d, 0x03, 0x60, 0xa6, 0xdf, 0x9f, 0x50,
+ 0x39, 0x85, 0x40, 0xdd, 0x81, 0x56, 0x81, 0x8d,
+ 0x5d, 0x30, 0x4c, 0x1e, 0x42, 0x1d, 0x45, 0xe1,
+ 0x53, 0x4a, 0x84, 0x50, 0x5f,
+};
+
+static const uint8_t unicode_prop_Join_Control_table[4] = {
+ 0x60, 0x20, 0x0b, 0x81,
+};
+
+static const uint8_t unicode_prop_Logical_Order_Exception_table[15] = {
+ 0x4e, 0x3f, 0x84, 0xfa, 0x84, 0x4a, 0xef, 0x11,
+ 0x80, 0x60, 0x90, 0xf9, 0x09, 0x00, 0x81,
+};
+
+static const uint8_t unicode_prop_Noncharacter_Code_Point_table[71] = {
+ 0x60, 0xfd, 0xcf, 0x9f, 0x42, 0x0d, 0x81, 0x60,
+ 0xff, 0xfd, 0x81, 0x60, 0xff, 0xfd, 0x81, 0x60,
+ 0xff, 0xfd, 0x81, 0x60, 0xff, 0xfd, 0x81, 0x60,
+ 0xff, 0xfd, 0x81, 0x60, 0xff, 0xfd, 0x81, 0x60,
+ 0xff, 0xfd, 0x81, 0x60, 0xff, 0xfd, 0x81, 0x60,
+ 0xff, 0xfd, 0x81, 0x60, 0xff, 0xfd, 0x81, 0x60,
+ 0xff, 0xfd, 0x81, 0x60, 0xff, 0xfd, 0x81, 0x60,
+ 0xff, 0xfd, 0x81, 0x60, 0xff, 0xfd, 0x81, 0x60,
+ 0xff, 0xfd, 0x81, 0x60, 0xff, 0xfd, 0x81,
+};
+
+static const uint8_t unicode_prop_Pattern_Syntax_table[58] = {
+ 0xa0, 0x8e, 0x89, 0x86, 0x99, 0x18, 0x80, 0x99,
+ 0x83, 0xa1, 0x30, 0x00, 0x08, 0x00, 0x0b, 0x03,
+ 0x02, 0x80, 0x96, 0x80, 0x9e, 0x80, 0x5f, 0x17,
+ 0x97, 0x87, 0x8e, 0x81, 0x92, 0x80, 0x89, 0x41,
+ 0x30, 0x42, 0xcf, 0x40, 0x9f, 0x42, 0x75, 0x9d,
+ 0x44, 0x6b, 0x41, 0xff, 0xff, 0x41, 0x80, 0x13,
+ 0x98, 0x8e, 0x80, 0x60, 0xcd, 0x0c, 0x81, 0x41,
+ 0x04, 0x81,
+};
+
+static const uint8_t unicode_prop_Pattern_White_Space_table[11] = {
+ 0x88, 0x84, 0x91, 0x80, 0xe3, 0x80, 0x5f, 0x87,
+ 0x81, 0x97, 0x81,
+};
+
+static const uint8_t unicode_prop_Quotation_Mark_table[31] = {
+ 0xa1, 0x03, 0x80, 0x40, 0x82, 0x80, 0x8e, 0x80,
+ 0x5f, 0x5b, 0x87, 0x98, 0x81, 0x4e, 0x06, 0x80,
+ 0x41, 0xc8, 0x83, 0x8c, 0x82, 0x60, 0xce, 0x20,
+ 0x83, 0x40, 0xbc, 0x03, 0x80, 0xd9, 0x81,
+};
+
+static const uint8_t unicode_prop_Radical_table[9] = {
+ 0x60, 0x2e, 0x7f, 0x99, 0x80, 0xd8, 0x8b, 0x40,
+ 0xd5,
+};
+
+static const uint8_t unicode_prop_Regional_Indicator_table[4] = {
+ 0x61, 0xf1, 0xe5, 0x99,
+};
+
+static const uint8_t unicode_prop_Sentence_Terminal_table[196] = {
+ 0xa0, 0x80, 0x8b, 0x80, 0x8f, 0x80, 0x45, 0x48,
+ 0x80, 0x40, 0x92, 0x82, 0x40, 0xb3, 0x80, 0xaa,
+ 0x82, 0x40, 0xf5, 0x80, 0xbc, 0x00, 0x02, 0x81,
+ 0x41, 0x24, 0x81, 0x46, 0xe3, 0x81, 0x43, 0x15,
+ 0x03, 0x81, 0x43, 0x04, 0x80, 0x40, 0xc5, 0x81,
+ 0x40, 0xcb, 0x04, 0x80, 0x41, 0x39, 0x81, 0x41,
+ 0x61, 0x83, 0x40, 0xad, 0x09, 0x81, 0x9c, 0x81,
+ 0x40, 0xbb, 0x81, 0xc0, 0x81, 0x43, 0xbb, 0x81,
+ 0x88, 0x82, 0x4d, 0xe3, 0x80, 0x8c, 0x80, 0x95,
+ 0x81, 0x41, 0xac, 0x80, 0x60, 0x74, 0xfb, 0x80,
+ 0x41, 0x0d, 0x81, 0x40, 0xe2, 0x02, 0x80, 0x41,
+ 0x7d, 0x81, 0xd5, 0x81, 0xde, 0x80, 0x40, 0x97,
+ 0x81, 0x40, 0x92, 0x82, 0x40, 0x8f, 0x81, 0x40,
+ 0xf8, 0x80, 0x60, 0x52, 0x65, 0x02, 0x81, 0x40,
+ 0xa8, 0x80, 0x8b, 0x80, 0x8f, 0x80, 0xc0, 0x80,
+ 0x4a, 0xf3, 0x81, 0x44, 0xfc, 0x84, 0xab, 0x83,
+ 0x40, 0xbc, 0x81, 0xf4, 0x83, 0xfe, 0x82, 0x40,
+ 0x80, 0x0d, 0x80, 0x8f, 0x81, 0xd7, 0x08, 0x81,
+ 0xeb, 0x80, 0x41, 0xa0, 0x81, 0x41, 0x74, 0x0c,
+ 0x8e, 0xe8, 0x81, 0x40, 0xf8, 0x82, 0x42, 0x04,
+ 0x00, 0x80, 0x40, 0xfa, 0x81, 0xd6, 0x81, 0x41,
+ 0xa3, 0x81, 0x42, 0xb3, 0x81, 0xc9, 0x81, 0x60,
+ 0x4b, 0x28, 0x81, 0x40, 0x84, 0x80, 0xc0, 0x81,
+ 0x8a, 0x80, 0x43, 0x52, 0x80, 0x60, 0x4e, 0x05,
+ 0x80, 0x5d, 0xe7, 0x80,
+};
+
+static const uint8_t unicode_prop_Soft_Dotted_table[79] = {
+ 0xe8, 0x81, 0x40, 0xc3, 0x80, 0x41, 0x18, 0x80,
+ 0x9d, 0x80, 0xb3, 0x80, 0x93, 0x80, 0x41, 0x3f,
+ 0x80, 0xe1, 0x00, 0x80, 0x59, 0x08, 0x80, 0xb2,
+ 0x80, 0x8c, 0x02, 0x80, 0x40, 0x83, 0x80, 0x40,
+ 0x9c, 0x80, 0x41, 0xa4, 0x80, 0x40, 0xd5, 0x81,
+ 0x4b, 0x31, 0x80, 0x61, 0xa7, 0xa4, 0x81, 0xb1,
+ 0x81, 0xb1, 0x81, 0xb1, 0x81, 0xb1, 0x81, 0xb1,
+ 0x81, 0xb1, 0x81, 0xb1, 0x81, 0xb1, 0x81, 0xb1,
+ 0x81, 0xb1, 0x81, 0xb1, 0x81, 0xb1, 0x81, 0x48,
+ 0x85, 0x80, 0x41, 0x30, 0x81, 0x99, 0x80,
+};
+
+static const uint8_t unicode_prop_Terminal_Punctuation_table[248] = {
+ 0xa0, 0x80, 0x89, 0x00, 0x80, 0x8a, 0x0a, 0x80,
+ 0x43, 0x3d, 0x07, 0x80, 0x42, 0x00, 0x80, 0xb8,
+ 0x80, 0xc7, 0x80, 0x8d, 0x00, 0x82, 0x40, 0xb3,
+ 0x80, 0xaa, 0x8a, 0x00, 0x40, 0xea, 0x81, 0xb5,
+ 0x8e, 0x9e, 0x80, 0x41, 0x04, 0x81, 0x44, 0xf3,
+ 0x81, 0x40, 0xab, 0x03, 0x85, 0x41, 0x36, 0x81,
+ 0x43, 0x14, 0x87, 0x43, 0x04, 0x80, 0xfb, 0x82,
+ 0xc6, 0x81, 0x40, 0x9c, 0x12, 0x80, 0xa6, 0x19,
+ 0x81, 0x41, 0x39, 0x81, 0x41, 0x61, 0x83, 0x40,
+ 0xad, 0x08, 0x82, 0x9c, 0x81, 0x40, 0xbb, 0x84,
+ 0xbd, 0x81, 0x43, 0xbb, 0x81, 0x88, 0x82, 0x4d,
+ 0xe3, 0x80, 0x8c, 0x03, 0x80, 0x89, 0x00, 0x0a,
+ 0x81, 0x41, 0xab, 0x81, 0x60, 0x74, 0xfa, 0x81,
+ 0x41, 0x0c, 0x82, 0x40, 0xe2, 0x84, 0x41, 0x7d,
+ 0x81, 0xd5, 0x81, 0xde, 0x80, 0x40, 0x96, 0x82,
+ 0x40, 0x92, 0x82, 0xfe, 0x80, 0x8f, 0x81, 0x40,
+ 0xf8, 0x80, 0x60, 0x52, 0x63, 0x10, 0x83, 0x40,
+ 0xa8, 0x80, 0x89, 0x00, 0x80, 0x8a, 0x0a, 0x80,
+ 0xc0, 0x01, 0x80, 0x44, 0x39, 0x80, 0xaf, 0x80,
+ 0x44, 0x85, 0x80, 0x40, 0xc6, 0x80, 0x41, 0x35,
+ 0x81, 0x40, 0x97, 0x85, 0xc3, 0x85, 0xd8, 0x83,
+ 0x43, 0xb7, 0x84, 0xab, 0x83, 0x40, 0xbc, 0x86,
+ 0xef, 0x83, 0xfe, 0x82, 0x40, 0x80, 0x0d, 0x80,
+ 0x8f, 0x81, 0xd7, 0x84, 0xeb, 0x80, 0x41, 0xa0,
+ 0x82, 0x8b, 0x81, 0x41, 0x65, 0x1a, 0x8e, 0xe8,
+ 0x81, 0x40, 0xf8, 0x82, 0x42, 0x04, 0x00, 0x80,
+ 0x40, 0xfa, 0x81, 0xd6, 0x0b, 0x81, 0x41, 0x9d,
+ 0x82, 0xac, 0x80, 0x42, 0x84, 0x81, 0xc9, 0x81,
+ 0x45, 0x2a, 0x84, 0x60, 0x45, 0xf8, 0x81, 0x40,
+ 0x84, 0x80, 0xc0, 0x82, 0x89, 0x80, 0x43, 0x51,
+ 0x81, 0x60, 0x4e, 0x05, 0x80, 0x5d, 0xe6, 0x83,
+};
+
+static const uint8_t unicode_prop_Unified_Ideograph_table[45] = {
+ 0x60, 0x33, 0xff, 0x59, 0xbf, 0xbf, 0x60, 0x51,
+ 0xff, 0x60, 0x5a, 0x0d, 0x08, 0x00, 0x81, 0x89,
+ 0x00, 0x00, 0x09, 0x82, 0x61, 0x05, 0xd5, 0x60,
+ 0xa6, 0xdf, 0x9f, 0x50, 0x39, 0x85, 0x40, 0xdd,
+ 0x81, 0x56, 0x81, 0x8d, 0x5d, 0x30, 0x54, 0x1e,
+ 0x53, 0x4a, 0x84, 0x50, 0x5f,
+};
+
+static const uint8_t unicode_prop_Variation_Selector_table[13] = {
+ 0x58, 0x0a, 0x10, 0x80, 0x60, 0xe5, 0xef, 0x8f,
+ 0x6d, 0x02, 0xef, 0x40, 0xef,
+};
+
+static const uint8_t unicode_prop_White_Space_table[22] = {
+ 0x88, 0x84, 0x91, 0x80, 0xe3, 0x80, 0x99, 0x80,
+ 0x55, 0xde, 0x80, 0x49, 0x7e, 0x8a, 0x9c, 0x0c,
+ 0x80, 0xae, 0x80, 0x4f, 0x9f, 0x80,
+};
+
+static const uint8_t unicode_prop_Bidi_Mirrored_table[173] = {
+ 0xa7, 0x81, 0x91, 0x00, 0x80, 0x9b, 0x00, 0x80,
+ 0x9c, 0x00, 0x80, 0xac, 0x80, 0x8e, 0x80, 0x4e,
+ 0x7d, 0x83, 0x47, 0x5c, 0x81, 0x49, 0x9b, 0x81,
+ 0x89, 0x81, 0xb5, 0x81, 0x8d, 0x81, 0x40, 0xb0,
+ 0x80, 0x40, 0xbf, 0x1a, 0x2a, 0x02, 0x0a, 0x18,
+ 0x18, 0x00, 0x03, 0x88, 0x20, 0x80, 0x91, 0x23,
+ 0x88, 0x08, 0x00, 0x39, 0x9e, 0x0b, 0x20, 0x88,
+ 0x09, 0x92, 0x21, 0x88, 0x21, 0x0b, 0x97, 0x81,
+ 0x8f, 0x3b, 0x93, 0x0e, 0x81, 0x44, 0x3c, 0x8d,
+ 0xc9, 0x01, 0x18, 0x08, 0x14, 0x1c, 0x12, 0x8d,
+ 0x41, 0x92, 0x95, 0x0d, 0x80, 0x8d, 0x38, 0x35,
+ 0x10, 0x1c, 0x01, 0x0c, 0x18, 0x02, 0x09, 0x89,
+ 0x29, 0x81, 0x8b, 0x92, 0x03, 0x08, 0x00, 0x08,
+ 0x03, 0x21, 0x2a, 0x97, 0x81, 0x8a, 0x0b, 0x18,
+ 0x09, 0x0b, 0xaa, 0x0f, 0x80, 0xa7, 0x20, 0x00,
+ 0x14, 0x22, 0x18, 0x14, 0x00, 0x40, 0xff, 0x80,
+ 0x42, 0x02, 0x1a, 0x08, 0x81, 0x8d, 0x09, 0x89,
+ 0xaa, 0x87, 0x41, 0xaa, 0x89, 0x0f, 0x60, 0xce,
+ 0x3c, 0x2c, 0x81, 0x40, 0xa1, 0x81, 0x91, 0x00,
+ 0x80, 0x9b, 0x00, 0x80, 0x9c, 0x00, 0x00, 0x08,
+ 0x81, 0x60, 0xd7, 0x76, 0x80, 0xb8, 0x80, 0xb8,
+ 0x80, 0xb8, 0x80, 0xb8, 0x80,
+};
+
+static const uint8_t unicode_prop_Emoji_table[239] = {
+ 0xa2, 0x05, 0x04, 0x89, 0xee, 0x03, 0x80, 0x5f,
+ 0x8c, 0x80, 0x8b, 0x80, 0x40, 0xd7, 0x80, 0x95,
+ 0x80, 0xd9, 0x85, 0x8e, 0x81, 0x41, 0x6e, 0x81,
+ 0x8b, 0x80, 0x40, 0xa5, 0x80, 0x98, 0x8a, 0x1a,
+ 0x40, 0xc6, 0x80, 0x40, 0xe6, 0x81, 0x89, 0x80,
+ 0x88, 0x80, 0xb9, 0x18, 0x84, 0x88, 0x01, 0x01,
+ 0x09, 0x03, 0x01, 0x00, 0x09, 0x02, 0x02, 0x0f,
+ 0x14, 0x00, 0x04, 0x8b, 0x8a, 0x09, 0x00, 0x08,
+ 0x80, 0x91, 0x01, 0x81, 0x91, 0x28, 0x00, 0x0a,
+ 0x0c, 0x01, 0x0b, 0x81, 0x8a, 0x0c, 0x09, 0x04,
+ 0x08, 0x00, 0x81, 0x93, 0x0c, 0x28, 0x19, 0x03,
+ 0x01, 0x01, 0x28, 0x01, 0x00, 0x00, 0x05, 0x02,
+ 0x05, 0x80, 0x89, 0x81, 0x8e, 0x01, 0x03, 0x00,
+ 0x03, 0x10, 0x80, 0x8a, 0x81, 0xaf, 0x82, 0x88,
+ 0x80, 0x8d, 0x80, 0x8d, 0x80, 0x41, 0x73, 0x81,
+ 0x41, 0xce, 0x82, 0x92, 0x81, 0xb2, 0x03, 0x80,
+ 0x44, 0xd9, 0x80, 0x8b, 0x80, 0x42, 0x58, 0x00,
+ 0x80, 0x61, 0xbd, 0x69, 0x80, 0x40, 0xc9, 0x80,
+ 0x40, 0x9f, 0x81, 0x8b, 0x81, 0x8d, 0x01, 0x89,
+ 0xca, 0x99, 0x01, 0x96, 0x80, 0x93, 0x01, 0x88,
+ 0x94, 0x81, 0x40, 0xad, 0xa1, 0x81, 0xef, 0x09,
+ 0x02, 0x81, 0xd2, 0x0a, 0x80, 0x41, 0x06, 0x80,
+ 0xbe, 0x8a, 0x28, 0x97, 0x31, 0x0f, 0x8b, 0x01,
+ 0x19, 0x03, 0x81, 0x8c, 0x09, 0x07, 0x81, 0x88,
+ 0x04, 0x82, 0x8b, 0x17, 0x11, 0x00, 0x03, 0x05,
+ 0x02, 0x05, 0xd5, 0xaf, 0xc5, 0x27, 0x0a, 0x83,
+ 0x89, 0x10, 0x01, 0x10, 0x81, 0x89, 0x40, 0xe2,
+ 0x8b, 0x18, 0x41, 0x1a, 0xae, 0x80, 0x89, 0x80,
+ 0x40, 0xb8, 0xef, 0x8c, 0x82, 0x88, 0x86, 0xad,
+ 0x06, 0x87, 0x8d, 0x83, 0x88, 0x86, 0x88,
+};
+
+static const uint8_t unicode_prop_Emoji_Component_table[28] = {
+ 0xa2, 0x05, 0x04, 0x89, 0x5f, 0xd2, 0x80, 0x40,
+ 0xd4, 0x80, 0x60, 0xdd, 0x2a, 0x80, 0x60, 0xf3,
+ 0xd5, 0x99, 0x41, 0xfa, 0x84, 0x45, 0xaf, 0x83,
+ 0x6c, 0x06, 0x6b, 0xdf,
+};
+
+static const uint8_t unicode_prop_Emoji_Modifier_table[4] = {
+ 0x61, 0xf3, 0xfa, 0x84,
+};
+
+static const uint8_t unicode_prop_Emoji_Modifier_Base_table[71] = {
+ 0x60, 0x26, 0x1c, 0x80, 0x40, 0xda, 0x80, 0x8f,
+ 0x83, 0x61, 0xcc, 0x76, 0x80, 0xbb, 0x11, 0x01,
+ 0x82, 0xf4, 0x09, 0x8a, 0x94, 0x92, 0x10, 0x1a,
+ 0x02, 0x30, 0x00, 0x97, 0x80, 0x40, 0xc8, 0x0b,
+ 0x80, 0x94, 0x03, 0x81, 0x40, 0xad, 0x12, 0x84,
+ 0xd2, 0x80, 0x8f, 0x82, 0x88, 0x80, 0x8a, 0x80,
+ 0x42, 0x3e, 0x01, 0x07, 0x3d, 0x80, 0x88, 0x89,
+ 0x0a, 0xb7, 0x80, 0xbc, 0x08, 0x08, 0x80, 0x90,
+ 0x10, 0x8c, 0x40, 0xe4, 0x82, 0xa9, 0x88,
+};
+
+static const uint8_t unicode_prop_Emoji_Presentation_table[145] = {
+ 0x60, 0x23, 0x19, 0x81, 0x40, 0xcc, 0x1a, 0x01,
+ 0x80, 0x42, 0x08, 0x81, 0x94, 0x81, 0xb1, 0x8b,
+ 0xaa, 0x80, 0x92, 0x80, 0x8c, 0x07, 0x81, 0x90,
+ 0x0c, 0x0f, 0x04, 0x80, 0x94, 0x06, 0x08, 0x03,
+ 0x01, 0x06, 0x03, 0x81, 0x9b, 0x80, 0xa2, 0x00,
+ 0x03, 0x10, 0x80, 0xbc, 0x82, 0x97, 0x80, 0x8d,
+ 0x80, 0x43, 0x5a, 0x81, 0xb2, 0x03, 0x80, 0x61,
+ 0xc4, 0xad, 0x80, 0x40, 0xc9, 0x80, 0x40, 0xbd,
+ 0x01, 0x89, 0xca, 0x99, 0x00, 0x97, 0x80, 0x93,
+ 0x01, 0x20, 0x82, 0x94, 0x81, 0x40, 0xad, 0xa0,
+ 0x8b, 0x88, 0x80, 0xc5, 0x80, 0x95, 0x8b, 0xaa,
+ 0x1c, 0x8b, 0x90, 0x10, 0x82, 0xc6, 0x00, 0x80,
+ 0x40, 0xba, 0x81, 0xbe, 0x8c, 0x18, 0x97, 0x91,
+ 0x80, 0x99, 0x81, 0x8c, 0x80, 0xd5, 0xd4, 0xaf,
+ 0xc5, 0x28, 0x12, 0x0a, 0x1b, 0x8a, 0x0e, 0x88,
+ 0x40, 0xe2, 0x8b, 0x18, 0x41, 0x1a, 0xae, 0x80,
+ 0x89, 0x80, 0x40, 0xb8, 0xef, 0x8c, 0x82, 0x88,
+ 0x86, 0xad, 0x06, 0x87, 0x8d, 0x83, 0x88, 0x86,
+ 0x88,
+};
+
+static const uint8_t unicode_prop_Extended_Pictographic_table[156] = {
+ 0x40, 0xa8, 0x03, 0x80, 0x5f, 0x8c, 0x80, 0x8b,
+ 0x80, 0x40, 0xd7, 0x80, 0x95, 0x80, 0xd9, 0x85,
+ 0x8e, 0x81, 0x41, 0x6e, 0x81, 0x8b, 0x80, 0xde,
+ 0x80, 0xc5, 0x80, 0x98, 0x8a, 0x1a, 0x40, 0xc6,
+ 0x80, 0x40, 0xe6, 0x81, 0x89, 0x80, 0x88, 0x80,
+ 0xb9, 0x18, 0x28, 0x8b, 0x80, 0xf1, 0x89, 0xf5,
+ 0x81, 0x8a, 0x00, 0x00, 0x28, 0x10, 0x28, 0x89,
+ 0x81, 0x8e, 0x01, 0x03, 0x00, 0x03, 0x10, 0x80,
+ 0x8a, 0x84, 0xac, 0x82, 0x88, 0x80, 0x8d, 0x80,
+ 0x8d, 0x80, 0x41, 0x73, 0x81, 0x41, 0xce, 0x82,
+ 0x92, 0x81, 0xb2, 0x03, 0x80, 0x44, 0xd9, 0x80,
+ 0x8b, 0x80, 0x42, 0x58, 0x00, 0x80, 0x61, 0xbd,
+ 0x65, 0x40, 0xff, 0x8c, 0x82, 0x9e, 0x80, 0xbb,
+ 0x85, 0x8b, 0x81, 0x8d, 0x01, 0x89, 0x91, 0xb8,
+ 0x9a, 0x8e, 0x89, 0x80, 0x93, 0x01, 0x88, 0x03,
+ 0x88, 0x41, 0xb1, 0x84, 0x41, 0x3d, 0x87, 0x41,
+ 0x09, 0xaf, 0xff, 0xf3, 0x8b, 0xd4, 0xaa, 0x8b,
+ 0x83, 0xb7, 0x87, 0x89, 0x85, 0xa7, 0x87, 0x9d,
+ 0xd1, 0x8b, 0xae, 0x80, 0x89, 0x80, 0x41, 0xb8,
+ 0x40, 0xff, 0x43, 0xfd,
+};
+
+static const uint8_t unicode_prop_Default_Ignorable_Code_Point_table[51] = {
+ 0x40, 0xac, 0x80, 0x42, 0xa0, 0x80, 0x42, 0xcb,
+ 0x80, 0x4b, 0x41, 0x81, 0x46, 0x52, 0x81, 0xd4,
+ 0x84, 0x47, 0xfa, 0x84, 0x99, 0x84, 0xb0, 0x8f,
+ 0x50, 0xf3, 0x80, 0x60, 0xcc, 0x9a, 0x8f, 0x40,
+ 0xee, 0x80, 0x40, 0x9f, 0x80, 0xce, 0x88, 0x60,
+ 0xbc, 0xa6, 0x83, 0x54, 0xce, 0x87, 0x6c, 0x2e,
+ 0x84, 0x4f, 0xff,
+};
+
+typedef enum {
+ UNICODE_PROP_Hyphen,
+ UNICODE_PROP_Other_Math,
+ UNICODE_PROP_Other_Alphabetic,
+ UNICODE_PROP_Other_Lowercase,
+ UNICODE_PROP_Other_Uppercase,
+ UNICODE_PROP_Other_Grapheme_Extend,
+ UNICODE_PROP_Other_Default_Ignorable_Code_Point,
+ UNICODE_PROP_Other_ID_Start,
+ UNICODE_PROP_Other_ID_Continue,
+ UNICODE_PROP_Prepended_Concatenation_Mark,
+ UNICODE_PROP_ID_Continue1,
+ UNICODE_PROP_XID_Start1,
+ UNICODE_PROP_XID_Continue1,
+ UNICODE_PROP_Changes_When_Titlecased1,
+ UNICODE_PROP_Changes_When_Casefolded1,
+ UNICODE_PROP_Changes_When_NFKC_Casefolded1,
+ UNICODE_PROP_ASCII_Hex_Digit,
+ UNICODE_PROP_Bidi_Control,
+ UNICODE_PROP_Dash,
+ UNICODE_PROP_Deprecated,
+ UNICODE_PROP_Diacritic,
+ UNICODE_PROP_Extender,
+ UNICODE_PROP_Hex_Digit,
+ UNICODE_PROP_IDS_Binary_Operator,
+ UNICODE_PROP_IDS_Trinary_Operator,
+ UNICODE_PROP_Ideographic,
+ UNICODE_PROP_Join_Control,
+ UNICODE_PROP_Logical_Order_Exception,
+ UNICODE_PROP_Noncharacter_Code_Point,
+ UNICODE_PROP_Pattern_Syntax,
+ UNICODE_PROP_Pattern_White_Space,
+ UNICODE_PROP_Quotation_Mark,
+ UNICODE_PROP_Radical,
+ UNICODE_PROP_Regional_Indicator,
+ UNICODE_PROP_Sentence_Terminal,
+ UNICODE_PROP_Soft_Dotted,
+ UNICODE_PROP_Terminal_Punctuation,
+ UNICODE_PROP_Unified_Ideograph,
+ UNICODE_PROP_Variation_Selector,
+ UNICODE_PROP_White_Space,
+ UNICODE_PROP_Bidi_Mirrored,
+ UNICODE_PROP_Emoji,
+ UNICODE_PROP_Emoji_Component,
+ UNICODE_PROP_Emoji_Modifier,
+ UNICODE_PROP_Emoji_Modifier_Base,
+ UNICODE_PROP_Emoji_Presentation,
+ UNICODE_PROP_Extended_Pictographic,
+ UNICODE_PROP_Default_Ignorable_Code_Point,
+ UNICODE_PROP_ID_Start,
+ UNICODE_PROP_Case_Ignorable,
+ UNICODE_PROP_ASCII,
+ UNICODE_PROP_Alphabetic,
+ UNICODE_PROP_Any,
+ UNICODE_PROP_Assigned,
+ UNICODE_PROP_Cased,
+ UNICODE_PROP_Changes_When_Casefolded,
+ UNICODE_PROP_Changes_When_Casemapped,
+ UNICODE_PROP_Changes_When_Lowercased,
+ UNICODE_PROP_Changes_When_NFKC_Casefolded,
+ UNICODE_PROP_Changes_When_Titlecased,
+ UNICODE_PROP_Changes_When_Uppercased,
+ UNICODE_PROP_Grapheme_Base,
+ UNICODE_PROP_Grapheme_Extend,
+ UNICODE_PROP_ID_Continue,
+ UNICODE_PROP_Lowercase,
+ UNICODE_PROP_Math,
+ UNICODE_PROP_Uppercase,
+ UNICODE_PROP_XID_Continue,
+ UNICODE_PROP_XID_Start,
+ UNICODE_PROP_Cased1,
+ UNICODE_PROP_COUNT,
+} UnicodePropertyEnum;
+
+static const char unicode_prop_name_table[] =
+ "ASCII_Hex_Digit,AHex" "\0"
+ "Bidi_Control,Bidi_C" "\0"
+ "Dash" "\0"
+ "Deprecated,Dep" "\0"
+ "Diacritic,Dia" "\0"
+ "Extender,Ext" "\0"
+ "Hex_Digit,Hex" "\0"
+ "IDS_Binary_Operator,IDSB" "\0"
+ "IDS_Trinary_Operator,IDST" "\0"
+ "Ideographic,Ideo" "\0"
+ "Join_Control,Join_C" "\0"
+ "Logical_Order_Exception,LOE" "\0"
+ "Noncharacter_Code_Point,NChar" "\0"
+ "Pattern_Syntax,Pat_Syn" "\0"
+ "Pattern_White_Space,Pat_WS" "\0"
+ "Quotation_Mark,QMark" "\0"
+ "Radical" "\0"
+ "Regional_Indicator,RI" "\0"
+ "Sentence_Terminal,STerm" "\0"
+ "Soft_Dotted,SD" "\0"
+ "Terminal_Punctuation,Term" "\0"
+ "Unified_Ideograph,UIdeo" "\0"
+ "Variation_Selector,VS" "\0"
+ "White_Space,space" "\0"
+ "Bidi_Mirrored,Bidi_M" "\0"
+ "Emoji" "\0"
+ "Emoji_Component,EComp" "\0"
+ "Emoji_Modifier,EMod" "\0"
+ "Emoji_Modifier_Base,EBase" "\0"
+ "Emoji_Presentation,EPres" "\0"
+ "Extended_Pictographic,ExtPict" "\0"
+ "Default_Ignorable_Code_Point,DI" "\0"
+ "ID_Start,IDS" "\0"
+ "Case_Ignorable,CI" "\0"
+ "ASCII" "\0"
+ "Alphabetic,Alpha" "\0"
+ "Any" "\0"
+ "Assigned" "\0"
+ "Cased" "\0"
+ "Changes_When_Casefolded,CWCF" "\0"
+ "Changes_When_Casemapped,CWCM" "\0"
+ "Changes_When_Lowercased,CWL" "\0"
+ "Changes_When_NFKC_Casefolded,CWKCF" "\0"
+ "Changes_When_Titlecased,CWT" "\0"
+ "Changes_When_Uppercased,CWU" "\0"
+ "Grapheme_Base,Gr_Base" "\0"
+ "Grapheme_Extend,Gr_Ext" "\0"
+ "ID_Continue,IDC" "\0"
+ "Lowercase,Lower" "\0"
+ "Math" "\0"
+ "Uppercase,Upper" "\0"
+ "XID_Continue,XIDC" "\0"
+ "XID_Start,XIDS" "\0"
+;
+
+static const uint8_t * const unicode_prop_table[] = {
+ unicode_prop_Hyphen_table,
+ unicode_prop_Other_Math_table,
+ unicode_prop_Other_Alphabetic_table,
+ unicode_prop_Other_Lowercase_table,
+ unicode_prop_Other_Uppercase_table,
+ unicode_prop_Other_Grapheme_Extend_table,
+ unicode_prop_Other_Default_Ignorable_Code_Point_table,
+ unicode_prop_Other_ID_Start_table,
+ unicode_prop_Other_ID_Continue_table,
+ unicode_prop_Prepended_Concatenation_Mark_table,
+ unicode_prop_ID_Continue1_table,
+ unicode_prop_XID_Start1_table,
+ unicode_prop_XID_Continue1_table,
+ unicode_prop_Changes_When_Titlecased1_table,
+ unicode_prop_Changes_When_Casefolded1_table,
+ unicode_prop_Changes_When_NFKC_Casefolded1_table,
+ unicode_prop_ASCII_Hex_Digit_table,
+ unicode_prop_Bidi_Control_table,
+ unicode_prop_Dash_table,
+ unicode_prop_Deprecated_table,
+ unicode_prop_Diacritic_table,
+ unicode_prop_Extender_table,
+ unicode_prop_Hex_Digit_table,
+ unicode_prop_IDS_Binary_Operator_table,
+ unicode_prop_IDS_Trinary_Operator_table,
+ unicode_prop_Ideographic_table,
+ unicode_prop_Join_Control_table,
+ unicode_prop_Logical_Order_Exception_table,
+ unicode_prop_Noncharacter_Code_Point_table,
+ unicode_prop_Pattern_Syntax_table,
+ unicode_prop_Pattern_White_Space_table,
+ unicode_prop_Quotation_Mark_table,
+ unicode_prop_Radical_table,
+ unicode_prop_Regional_Indicator_table,
+ unicode_prop_Sentence_Terminal_table,
+ unicode_prop_Soft_Dotted_table,
+ unicode_prop_Terminal_Punctuation_table,
+ unicode_prop_Unified_Ideograph_table,
+ unicode_prop_Variation_Selector_table,
+ unicode_prop_White_Space_table,
+ unicode_prop_Bidi_Mirrored_table,
+ unicode_prop_Emoji_table,
+ unicode_prop_Emoji_Component_table,
+ unicode_prop_Emoji_Modifier_table,
+ unicode_prop_Emoji_Modifier_Base_table,
+ unicode_prop_Emoji_Presentation_table,
+ unicode_prop_Extended_Pictographic_table,
+ unicode_prop_Default_Ignorable_Code_Point_table,
+ unicode_prop_ID_Start_table,
+ unicode_prop_Case_Ignorable_table,
+};
+
+static const uint16_t unicode_prop_len_table[] = {
+ countof(unicode_prop_Hyphen_table),
+ countof(unicode_prop_Other_Math_table),
+ countof(unicode_prop_Other_Alphabetic_table),
+ countof(unicode_prop_Other_Lowercase_table),
+ countof(unicode_prop_Other_Uppercase_table),
+ countof(unicode_prop_Other_Grapheme_Extend_table),
+ countof(unicode_prop_Other_Default_Ignorable_Code_Point_table),
+ countof(unicode_prop_Other_ID_Start_table),
+ countof(unicode_prop_Other_ID_Continue_table),
+ countof(unicode_prop_Prepended_Concatenation_Mark_table),
+ countof(unicode_prop_ID_Continue1_table),
+ countof(unicode_prop_XID_Start1_table),
+ countof(unicode_prop_XID_Continue1_table),
+ countof(unicode_prop_Changes_When_Titlecased1_table),
+ countof(unicode_prop_Changes_When_Casefolded1_table),
+ countof(unicode_prop_Changes_When_NFKC_Casefolded1_table),
+ countof(unicode_prop_ASCII_Hex_Digit_table),
+ countof(unicode_prop_Bidi_Control_table),
+ countof(unicode_prop_Dash_table),
+ countof(unicode_prop_Deprecated_table),
+ countof(unicode_prop_Diacritic_table),
+ countof(unicode_prop_Extender_table),
+ countof(unicode_prop_Hex_Digit_table),
+ countof(unicode_prop_IDS_Binary_Operator_table),
+ countof(unicode_prop_IDS_Trinary_Operator_table),
+ countof(unicode_prop_Ideographic_table),
+ countof(unicode_prop_Join_Control_table),
+ countof(unicode_prop_Logical_Order_Exception_table),
+ countof(unicode_prop_Noncharacter_Code_Point_table),
+ countof(unicode_prop_Pattern_Syntax_table),
+ countof(unicode_prop_Pattern_White_Space_table),
+ countof(unicode_prop_Quotation_Mark_table),
+ countof(unicode_prop_Radical_table),
+ countof(unicode_prop_Regional_Indicator_table),
+ countof(unicode_prop_Sentence_Terminal_table),
+ countof(unicode_prop_Soft_Dotted_table),
+ countof(unicode_prop_Terminal_Punctuation_table),
+ countof(unicode_prop_Unified_Ideograph_table),
+ countof(unicode_prop_Variation_Selector_table),
+ countof(unicode_prop_White_Space_table),
+ countof(unicode_prop_Bidi_Mirrored_table),
+ countof(unicode_prop_Emoji_table),
+ countof(unicode_prop_Emoji_Component_table),
+ countof(unicode_prop_Emoji_Modifier_table),
+ countof(unicode_prop_Emoji_Modifier_Base_table),
+ countof(unicode_prop_Emoji_Presentation_table),
+ countof(unicode_prop_Extended_Pictographic_table),
+ countof(unicode_prop_Default_Ignorable_Code_Point_table),
+ countof(unicode_prop_ID_Start_table),
+ countof(unicode_prop_Case_Ignorable_table),
+};
+
+#endif /* CONFIG_ALL_UNICODE */
+/* 62 tables / 32261 bytes, 5 index / 345 bytes */
diff --git a/src/couch_quickjs/quickjs/libunicode.c b/src/couch_quickjs/quickjs/libunicode.c
new file mode 100644
index 0000000..c80d2f3
--- /dev/null
+++ b/src/couch_quickjs/quickjs/libunicode.c
@@ -0,0 +1,1910 @@
+/*
+ * Unicode utilities
+ *
+ * Copyright (c) 2017-2018 Fabrice Bellard
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdarg.h>
+#include <string.h>
+#include <assert.h>
+
+#include "cutils.h"
+#include "libunicode.h"
+#include "libunicode-table.h"
+
+enum {
+ RUN_TYPE_U,
+ RUN_TYPE_L,
+ RUN_TYPE_UF,
+ RUN_TYPE_LF,
+ RUN_TYPE_UL,
+ RUN_TYPE_LSU,
+ RUN_TYPE_U2L_399_EXT2,
+ RUN_TYPE_UF_D20,
+ RUN_TYPE_UF_D1_EXT,
+ RUN_TYPE_U_EXT,
+ RUN_TYPE_LF_EXT,
+ RUN_TYPE_UF_EXT2,
+ RUN_TYPE_LF_EXT2,
+ RUN_TYPE_UF_EXT3,
+};
+
+static int lre_case_conv1(uint32_t c, int conv_type)
+{
+ uint32_t res[LRE_CC_RES_LEN_MAX];
+ lre_case_conv(res, c, conv_type);
+ return res[0];
+}
+
+/* case conversion using the table entry 'idx' with value 'v' */
+static int lre_case_conv_entry(uint32_t *res, uint32_t c, int conv_type, uint32_t idx, uint32_t v)
+{
+ uint32_t code, data, type, a, is_lower;
+ is_lower = (conv_type != 0);
+ type = (v >> (32 - 17 - 7 - 4)) & 0xf;
+ data = ((v & 0xf) << 8) | case_conv_table2[idx];
+ code = v >> (32 - 17);
+ switch(type) {
+ case RUN_TYPE_U:
+ case RUN_TYPE_L:
+ case RUN_TYPE_UF:
+ case RUN_TYPE_LF:
+ if (conv_type == (type & 1) ||
+ (type >= RUN_TYPE_UF && conv_type == 2)) {
+ c = c - code + (case_conv_table1[data] >> (32 - 17));
+ }
+ break;
+ case RUN_TYPE_UL:
+ a = c - code;
+ if ((a & 1) != (1 - is_lower))
+ break;
+ c = (a ^ 1) + code;
+ break;
+ case RUN_TYPE_LSU:
+ a = c - code;
+ if (a == 1) {
+ c += 2 * is_lower - 1;
+ } else if (a == (1 - is_lower) * 2) {
+ c += (2 * is_lower - 1) * 2;
+ }
+ break;
+ case RUN_TYPE_U2L_399_EXT2:
+ if (!is_lower) {
+ res[0] = c - code + case_conv_ext[data >> 6];
+ res[1] = 0x399;
+ return 2;
+ } else {
+ c = c - code + case_conv_ext[data & 0x3f];
+ }
+ break;
+ case RUN_TYPE_UF_D20:
+ if (conv_type == 1)
+ break;
+ c = data + (conv_type == 2) * 0x20;
+ break;
+ case RUN_TYPE_UF_D1_EXT:
+ if (conv_type == 1)
+ break;
+ c = case_conv_ext[data] + (conv_type == 2);
+ break;
+ case RUN_TYPE_U_EXT:
+ case RUN_TYPE_LF_EXT:
+ if (is_lower != (type - RUN_TYPE_U_EXT))
+ break;
+ c = case_conv_ext[data];
+ break;
+ case RUN_TYPE_LF_EXT2:
+ if (!is_lower)
+ break;
+ res[0] = c - code + case_conv_ext[data >> 6];
+ res[1] = case_conv_ext[data & 0x3f];
+ return 2;
+ case RUN_TYPE_UF_EXT2:
+ if (conv_type == 1)
+ break;
+ res[0] = c - code + case_conv_ext[data >> 6];
+ res[1] = case_conv_ext[data & 0x3f];
+ if (conv_type == 2) {
+ /* convert to lower */
+ res[0] = lre_case_conv1(res[0], 1);
+ res[1] = lre_case_conv1(res[1], 1);
+ }
+ return 2;
+ default:
+ case RUN_TYPE_UF_EXT3:
+ if (conv_type == 1)
+ break;
+ res[0] = case_conv_ext[data >> 8];
+ res[1] = case_conv_ext[(data >> 4) & 0xf];
+ res[2] = case_conv_ext[data & 0xf];
+ if (conv_type == 2) {
+ /* convert to lower */
+ res[0] = lre_case_conv1(res[0], 1);
+ res[1] = lre_case_conv1(res[1], 1);
+ res[2] = lre_case_conv1(res[2], 1);
+ }
+ return 3;
+ }
+ res[0] = c;
+ return 1;
+}
+
+/* conv_type:
+ 0 = to upper
+ 1 = to lower
+ 2 = case folding (= to lower with modifications)
+*/
+int lre_case_conv(uint32_t *res, uint32_t c, int conv_type)
+{
+ if (c < 128) {
+ if (conv_type) {
+ if (c >= 'A' && c <= 'Z') {
+ c = c - 'A' + 'a';
+ }
+ } else {
+ if (c >= 'a' && c <= 'z') {
+ c = c - 'a' + 'A';
+ }
+ }
+ } else {
+ uint32_t v, code, len;
+ int idx, idx_min, idx_max;
+
+ idx_min = 0;
+ idx_max = countof(case_conv_table1) - 1;
+ while (idx_min <= idx_max) {
+ idx = (unsigned)(idx_max + idx_min) / 2;
+ v = case_conv_table1[idx];
+ code = v >> (32 - 17);
+ len = (v >> (32 - 17 - 7)) & 0x7f;
+ if (c < code) {
+ idx_max = idx - 1;
+ } else if (c >= code + len) {
+ idx_min = idx + 1;
+ } else {
+ return lre_case_conv_entry(res, c, conv_type, idx, v);
+ }
+ }
+ }
+ res[0] = c;
+ return 1;
+}
+
+static int lre_case_folding_entry(uint32_t c, uint32_t idx, uint32_t v, BOOL is_unicode)
+{
+ uint32_t res[LRE_CC_RES_LEN_MAX];
+ int len;
+
+ if (is_unicode) {
+ len = lre_case_conv_entry(res, c, 2, idx, v);
+ if (len == 1) {
+ c = res[0];
+ } else {
+ /* handle the few specific multi-character cases (see
+ unicode_gen.c:dump_case_folding_special_cases()) */
+ if (c == 0xfb06) {
+ c = 0xfb05;
+ } else if (c == 0x01fd3) {
+ c = 0x390;
+ } else if (c == 0x01fe3) {
+ c = 0x3b0;
+ }
+ }
+ } else {
+ if (likely(c < 128)) {
+ if (c >= 'a' && c <= 'z')
+ c = c - 'a' + 'A';
+ } else {
+ /* legacy regexp: to upper case if single char >= 128 */
+ len = lre_case_conv_entry(res, c, FALSE, idx, v);
+ if (len == 1 && res[0] >= 128)
+ c = res[0];
+ }
+ }
+ return c;
+}
+
+/* JS regexp specific rules for case folding */
+int lre_canonicalize(uint32_t c, BOOL is_unicode)
+{
+ if (c < 128) {
+ /* fast case */
+ if (is_unicode) {
+ if (c >= 'A' && c <= 'Z') {
+ c = c - 'A' + 'a';
+ }
+ } else {
+ if (c >= 'a' && c <= 'z') {
+ c = c - 'a' + 'A';
+ }
+ }
+ } else {
+ uint32_t v, code, len;
+ int idx, idx_min, idx_max;
+
+ idx_min = 0;
+ idx_max = countof(case_conv_table1) - 1;
+ while (idx_min <= idx_max) {
+ idx = (unsigned)(idx_max + idx_min) / 2;
+ v = case_conv_table1[idx];
+ code = v >> (32 - 17);
+ len = (v >> (32 - 17 - 7)) & 0x7f;
+ if (c < code) {
+ idx_max = idx - 1;
+ } else if (c >= code + len) {
+ idx_min = idx + 1;
+ } else {
+ return lre_case_folding_entry(c, idx, v, is_unicode);
+ }
+ }
+ }
+ return c;
+}
+
+static uint32_t get_le24(const uint8_t *ptr)
+{
+ return ptr[0] | (ptr[1] << 8) | (ptr[2] << 16);
+}
+
+#define UNICODE_INDEX_BLOCK_LEN 32
+
+/* return -1 if not in table, otherwise the offset in the block */
+static int get_index_pos(uint32_t *pcode, uint32_t c,
+ const uint8_t *index_table, int index_table_len)
+{
+ uint32_t code, v;
+ int idx_min, idx_max, idx;
+
+ idx_min = 0;
+ v = get_le24(index_table);
+ code = v & ((1 << 21) - 1);
+ if (c < code) {
+ *pcode = 0;
+ return 0;
+ }
+ idx_max = index_table_len - 1;
+ code = get_le24(index_table + idx_max * 3);
+ if (c >= code)
+ return -1;
+ /* invariant: tab[idx_min] <= c < tab2[idx_max] */
+ while ((idx_max - idx_min) > 1) {
+ idx = (idx_max + idx_min) / 2;
+ v = get_le24(index_table + idx * 3);
+ code = v & ((1 << 21) - 1);
+ if (c < code) {
+ idx_max = idx;
+ } else {
+ idx_min = idx;
+ }
+ }
+ v = get_le24(index_table + idx_min * 3);
+ *pcode = v & ((1 << 21) - 1);
+ return (idx_min + 1) * UNICODE_INDEX_BLOCK_LEN + (v >> 21);
+}
+
+static BOOL lre_is_in_table(uint32_t c, const uint8_t *table,
+ const uint8_t *index_table, int index_table_len)
+{
+ uint32_t code, b, bit;
+ int pos;
+ const uint8_t *p;
+
+ pos = get_index_pos(&code, c, index_table, index_table_len);
+ if (pos < 0)
+ return FALSE; /* outside the table */
+ p = table + pos;
+ bit = 0;
+ /* Compressed run length encoding:
+ 00..3F: 2 packed lengths: 3-bit + 3-bit
+ 40..5F: 5-bits plus extra byte for length
+ 60..7F: 5-bits plus 2 extra bytes for length
+ 80..FF: 7-bit length
+ lengths must be incremented to get character count
+ Ranges alternate between false and true return value.
+ */
+ for(;;) {
+ b = *p++;
+ if (b < 64) {
+ code += (b >> 3) + 1;
+ if (c < code)
+ return bit;
+ bit ^= 1;
+ code += (b & 7) + 1;
+ } else if (b >= 0x80) {
+ code += b - 0x80 + 1;
+ } else if (b < 0x60) {
+ code += (((b - 0x40) << 8) | p[0]) + 1;
+ p++;
+ } else {
+ code += (((b - 0x60) << 16) | (p[0] << 8) | p[1]) + 1;
+ p += 2;
+ }
+ if (c < code)
+ return bit;
+ bit ^= 1;
+ }
+}
+
+BOOL lre_is_cased(uint32_t c)
+{
+ uint32_t v, code, len;
+ int idx, idx_min, idx_max;
+
+ idx_min = 0;
+ idx_max = countof(case_conv_table1) - 1;
+ while (idx_min <= idx_max) {
+ idx = (unsigned)(idx_max + idx_min) / 2;
+ v = case_conv_table1[idx];
+ code = v >> (32 - 17);
+ len = (v >> (32 - 17 - 7)) & 0x7f;
+ if (c < code) {
+ idx_max = idx - 1;
+ } else if (c >= code + len) {
+ idx_min = idx + 1;
+ } else {
+ return TRUE;
+ }
+ }
+ return lre_is_in_table(c, unicode_prop_Cased1_table,
+ unicode_prop_Cased1_index,
+ sizeof(unicode_prop_Cased1_index) / 3);
+}
+
+BOOL lre_is_case_ignorable(uint32_t c)
+{
+ return lre_is_in_table(c, unicode_prop_Case_Ignorable_table,
+ unicode_prop_Case_Ignorable_index,
+ sizeof(unicode_prop_Case_Ignorable_index) / 3);
+}
+
+/* character range */
+
+static __maybe_unused void cr_dump(CharRange *cr)
+{
+ int i;
+ for(i = 0; i < cr->len; i++)
+ printf("%d: 0x%04x\n", i, cr->points[i]);
+}
+
+static void *cr_default_realloc(void *opaque, void *ptr, size_t size)
+{
+ return realloc(ptr, size);
+}
+
+void cr_init(CharRange *cr, void *mem_opaque, DynBufReallocFunc *realloc_func)
+{
+ cr->len = cr->size = 0;
+ cr->points = NULL;
+ cr->mem_opaque = mem_opaque;
+ cr->realloc_func = realloc_func ? realloc_func : cr_default_realloc;
+}
+
+void cr_free(CharRange *cr)
+{
+ cr->realloc_func(cr->mem_opaque, cr->points, 0);
+}
+
+int cr_realloc(CharRange *cr, int size)
+{
+ int new_size;
+ uint32_t *new_buf;
+
+ if (size > cr->size) {
+ new_size = max_int(size, cr->size * 3 / 2);
+ new_buf = cr->realloc_func(cr->mem_opaque, cr->points,
+ new_size * sizeof(cr->points[0]));
+ if (!new_buf)
+ return -1;
+ cr->points = new_buf;
+ cr->size = new_size;
+ }
+ return 0;
+}
+
+int cr_copy(CharRange *cr, const CharRange *cr1)
+{
+ if (cr_realloc(cr, cr1->len))
+ return -1;
+ memcpy(cr->points, cr1->points, sizeof(cr->points[0]) * cr1->len);
+ cr->len = cr1->len;
+ return 0;
+}
+
+/* merge consecutive intervals and remove empty intervals */
+static void cr_compress(CharRange *cr)
+{
+ int i, j, k, len;
+ uint32_t *pt;
+
+ pt = cr->points;
+ len = cr->len;
+ i = 0;
+ j = 0;
+ k = 0;
+ while ((i + 1) < len) {
+ if (pt[i] == pt[i + 1]) {
+ /* empty interval */
+ i += 2;
+ } else {
+ j = i;
+ while ((j + 3) < len && pt[j + 1] == pt[j + 2])
+ j += 2;
+ /* just copy */
+ pt[k] = pt[i];
+ pt[k + 1] = pt[j + 1];
+ k += 2;
+ i = j + 2;
+ }
+ }
+ cr->len = k;
+}
+
+/* union or intersection */
+int cr_op(CharRange *cr, const uint32_t *a_pt, int a_len,
+ const uint32_t *b_pt, int b_len, int op)
+{
+ int a_idx, b_idx, is_in;
+ uint32_t v;
+
+ a_idx = 0;
+ b_idx = 0;
+ for(;;) {
+ /* get one more point from a or b in increasing order */
+ if (a_idx < a_len && b_idx < b_len) {
+ if (a_pt[a_idx] < b_pt[b_idx]) {
+ goto a_add;
+ } else if (a_pt[a_idx] == b_pt[b_idx]) {
+ v = a_pt[a_idx];
+ a_idx++;
+ b_idx++;
+ } else {
+ goto b_add;
+ }
+ } else if (a_idx < a_len) {
+ a_add:
+ v = a_pt[a_idx++];
+ } else if (b_idx < b_len) {
+ b_add:
+ v = b_pt[b_idx++];
+ } else {
+ break;
+ }
+ /* add the point if the in/out status changes */
+ switch(op) {
+ case CR_OP_UNION:
+ is_in = (a_idx & 1) | (b_idx & 1);
+ break;
+ case CR_OP_INTER:
+ is_in = (a_idx & 1) & (b_idx & 1);
+ break;
+ case CR_OP_XOR:
+ is_in = (a_idx & 1) ^ (b_idx & 1);
+ break;
+ default:
+ abort();
+ }
+ if (is_in != (cr->len & 1)) {
+ if (cr_add_point(cr, v))
+ return -1;
+ }
+ }
+ cr_compress(cr);
+ return 0;
+}
+
+int cr_union1(CharRange *cr, const uint32_t *b_pt, int b_len)
+{
+ CharRange a = *cr;
+ int ret;
+ cr->len = 0;
+ cr->size = 0;
+ cr->points = NULL;
+ ret = cr_op(cr, a.points, a.len, b_pt, b_len, CR_OP_UNION);
+ cr_free(&a);
+ return ret;
+}
+
+int cr_invert(CharRange *cr)
+{
+ int len;
+ len = cr->len;
+ if (cr_realloc(cr, len + 2))
+ return -1;
+ memmove(cr->points + 1, cr->points, len * sizeof(cr->points[0]));
+ cr->points[0] = 0;
+ cr->points[len + 1] = UINT32_MAX;
+ cr->len = len + 2;
+ cr_compress(cr);
+ return 0;
+}
+
+#ifdef CONFIG_ALL_UNICODE
+
+BOOL lre_is_id_start(uint32_t c)
+{
+ return lre_is_in_table(c, unicode_prop_ID_Start_table,
+ unicode_prop_ID_Start_index,
+ sizeof(unicode_prop_ID_Start_index) / 3);
+}
+
+BOOL lre_is_id_continue(uint32_t c)
+{
+ return lre_is_id_start(c) ||
+ lre_is_in_table(c, unicode_prop_ID_Continue1_table,
+ unicode_prop_ID_Continue1_index,
+ sizeof(unicode_prop_ID_Continue1_index) / 3);
+}
+
+#define UNICODE_DECOMP_LEN_MAX 18
+
+typedef enum {
+ DECOMP_TYPE_C1, /* 16 bit char */
+ DECOMP_TYPE_L1, /* 16 bit char table */
+ DECOMP_TYPE_L2,
+ DECOMP_TYPE_L3,
+ DECOMP_TYPE_L4,
+ DECOMP_TYPE_L5, /* XXX: not used */
+ DECOMP_TYPE_L6, /* XXX: could remove */
+ DECOMP_TYPE_L7, /* XXX: could remove */
+ DECOMP_TYPE_LL1, /* 18 bit char table */
+ DECOMP_TYPE_LL2,
+ DECOMP_TYPE_S1, /* 8 bit char table */
+ DECOMP_TYPE_S2,
+ DECOMP_TYPE_S3,
+ DECOMP_TYPE_S4,
+ DECOMP_TYPE_S5,
+ DECOMP_TYPE_I1, /* increment 16 bit char value */
+ DECOMP_TYPE_I2_0,
+ DECOMP_TYPE_I2_1,
+ DECOMP_TYPE_I3_1,
+ DECOMP_TYPE_I3_2,
+ DECOMP_TYPE_I4_1,
+ DECOMP_TYPE_I4_2,
+ DECOMP_TYPE_B1, /* 16 bit base + 8 bit offset */
+ DECOMP_TYPE_B2,
+ DECOMP_TYPE_B3,
+ DECOMP_TYPE_B4,
+ DECOMP_TYPE_B5,
+ DECOMP_TYPE_B6,
+ DECOMP_TYPE_B7,
+ DECOMP_TYPE_B8,
+ DECOMP_TYPE_B18,
+ DECOMP_TYPE_LS2,
+ DECOMP_TYPE_PAT3,
+ DECOMP_TYPE_S2_UL,
+ DECOMP_TYPE_LS2_UL,
+} DecompTypeEnum;
+
+static uint32_t unicode_get_short_code(uint32_t c)
+{
+ static const uint16_t unicode_short_table[2] = { 0x2044, 0x2215 };
+
+ if (c < 0x80)
+ return c;
+ else if (c < 0x80 + 0x50)
+ return c - 0x80 + 0x300;
+ else
+ return unicode_short_table[c - 0x80 - 0x50];
+}
+
+static uint32_t unicode_get_lower_simple(uint32_t c)
+{
+ if (c < 0x100 || (c >= 0x410 && c <= 0x42f))
+ c += 0x20;
+ else
+ c++;
+ return c;
+}
+
+static uint16_t unicode_get16(const uint8_t *p)
+{
+ return p[0] | (p[1] << 8);
+}
+
+static int unicode_decomp_entry(uint32_t *res, uint32_t c,
+ int idx, uint32_t code, uint32_t len,
+ uint32_t type)
+{
+ uint32_t c1;
+ int l, i, p;
+ const uint8_t *d;
+
+ if (type == DECOMP_TYPE_C1) {
+ res[0] = unicode_decomp_table2[idx];
+ return 1;
+ } else {
+ d = unicode_decomp_data + unicode_decomp_table2[idx];
+ switch(type) {
+ case DECOMP_TYPE_L1:
+ case DECOMP_TYPE_L2:
+ case DECOMP_TYPE_L3:
+ case DECOMP_TYPE_L4:
+ case DECOMP_TYPE_L5:
+ case DECOMP_TYPE_L6:
+ case DECOMP_TYPE_L7:
+ l = type - DECOMP_TYPE_L1 + 1;
+ d += (c - code) * l * 2;
+ for(i = 0; i < l; i++) {
+ if ((res[i] = unicode_get16(d + 2 * i)) == 0)
+ return 0;
+ }
+ return l;
+ case DECOMP_TYPE_LL1:
+ case DECOMP_TYPE_LL2:
+ {
+ uint32_t k, p;
+ l = type - DECOMP_TYPE_LL1 + 1;
+ k = (c - code) * l;
+ p = len * l * 2;
+ for(i = 0; i < l; i++) {
+ c1 = unicode_get16(d + 2 * k) |
+ (((d[p + (k / 4)] >> ((k % 4) * 2)) & 3) << 16);
+ if (!c1)
+ return 0;
+ res[i] = c1;
+ k++;
+ }
+ }
+ return l;
+ case DECOMP_TYPE_S1:
+ case DECOMP_TYPE_S2:
+ case DECOMP_TYPE_S3:
+ case DECOMP_TYPE_S4:
+ case DECOMP_TYPE_S5:
+ l = type - DECOMP_TYPE_S1 + 1;
+ d += (c - code) * l;
+ for(i = 0; i < l; i++) {
+ if ((res[i] = unicode_get_short_code(d[i])) == 0)
+ return 0;
+ }
+ return l;
+ case DECOMP_TYPE_I1:
+ l = 1;
+ p = 0;
+ goto decomp_type_i;
+ case DECOMP_TYPE_I2_0:
+ case DECOMP_TYPE_I2_1:
+ case DECOMP_TYPE_I3_1:
+ case DECOMP_TYPE_I3_2:
+ case DECOMP_TYPE_I4_1:
+ case DECOMP_TYPE_I4_2:
+ l = 2 + ((type - DECOMP_TYPE_I2_0) >> 1);
+ p = ((type - DECOMP_TYPE_I2_0) & 1) + (l > 2);
+ decomp_type_i:
+ for(i = 0; i < l; i++) {
+ c1 = unicode_get16(d + 2 * i);
+ if (i == p)
+ c1 += c - code;
+ res[i] = c1;
+ }
+ return l;
+ case DECOMP_TYPE_B18:
+ l = 18;
+ goto decomp_type_b;
+ case DECOMP_TYPE_B1:
+ case DECOMP_TYPE_B2:
+ case DECOMP_TYPE_B3:
+ case DECOMP_TYPE_B4:
+ case DECOMP_TYPE_B5:
+ case DECOMP_TYPE_B6:
+ case DECOMP_TYPE_B7:
+ case DECOMP_TYPE_B8:
+ l = type - DECOMP_TYPE_B1 + 1;
+ decomp_type_b:
+ {
+ uint32_t c_min;
+ c_min = unicode_get16(d);
+ d += 2 + (c - code) * l;
+ for(i = 0; i < l; i++) {
+ c1 = d[i];
+ if (c1 == 0xff)
+ c1 = 0x20;
+ else
+ c1 += c_min;
+ res[i] = c1;
+ }
+ }
+ return l;
+ case DECOMP_TYPE_LS2:
+ d += (c - code) * 3;
+ if (!(res[0] = unicode_get16(d)))
+ return 0;
+ res[1] = unicode_get_short_code(d[2]);
+ return 2;
+ case DECOMP_TYPE_PAT3:
+ res[0] = unicode_get16(d);
+ res[2] = unicode_get16(d + 2);
+ d += 4 + (c - code) * 2;
+ res[1] = unicode_get16(d);
+ return 3;
+ case DECOMP_TYPE_S2_UL:
+ case DECOMP_TYPE_LS2_UL:
+ c1 = c - code;
+ if (type == DECOMP_TYPE_S2_UL) {
+ d += c1 & ~1;
+ c = unicode_get_short_code(*d);
+ d++;
+ } else {
+ d += (c1 >> 1) * 3;
+ c = unicode_get16(d);
+ d += 2;
+ }
+ if (c1 & 1)
+ c = unicode_get_lower_simple(c);
+ res[0] = c;
+ res[1] = unicode_get_short_code(*d);
+ return 2;
+ }
+ }
+ return 0;
+}
+
+
+/* return the length of the decomposition (length <=
+ UNICODE_DECOMP_LEN_MAX) or 0 if no decomposition */
+static int unicode_decomp_char(uint32_t *res, uint32_t c, BOOL is_compat1)
+{
+ uint32_t v, type, is_compat, code, len;
+ int idx_min, idx_max, idx;
+
+ idx_min = 0;
+ idx_max = countof(unicode_decomp_table1) - 1;
+ while (idx_min <= idx_max) {
+ idx = (idx_max + idx_min) / 2;
+ v = unicode_decomp_table1[idx];
+ code = v >> (32 - 18);
+ len = (v >> (32 - 18 - 7)) & 0x7f;
+ // printf("idx=%d code=%05x len=%d\n", idx, code, len);
+ if (c < code) {
+ idx_max = idx - 1;
+ } else if (c >= code + len) {
+ idx_min = idx + 1;
+ } else {
+ is_compat = v & 1;
+ if (is_compat1 < is_compat)
+ break;
+ type = (v >> (32 - 18 - 7 - 6)) & 0x3f;
+ return unicode_decomp_entry(res, c, idx, code, len, type);
+ }
+ }
+ return 0;
+}
+
+/* return 0 if no pair found */
+static int unicode_compose_pair(uint32_t c0, uint32_t c1)
+{
+ uint32_t code, len, type, v, idx1, d_idx, d_offset, ch;
+ int idx_min, idx_max, idx, d;
+ uint32_t pair[2];
+
+ idx_min = 0;
+ idx_max = countof(unicode_comp_table) - 1;
+ while (idx_min <= idx_max) {
+ idx = (idx_max + idx_min) / 2;
+ idx1 = unicode_comp_table[idx];
+
+ /* idx1 represent an entry of the decomposition table */
+ d_idx = idx1 >> 6;
+ d_offset = idx1 & 0x3f;
+ v = unicode_decomp_table1[d_idx];
+ code = v >> (32 - 18);
+ len = (v >> (32 - 18 - 7)) & 0x7f;
+ type = (v >> (32 - 18 - 7 - 6)) & 0x3f;
+ ch = code + d_offset;
+ unicode_decomp_entry(pair, ch, d_idx, code, len, type);
+ d = c0 - pair[0];
+ if (d == 0)
+ d = c1 - pair[1];
+ if (d < 0) {
+ idx_max = idx - 1;
+ } else if (d > 0) {
+ idx_min = idx + 1;
+ } else {
+ return ch;
+ }
+ }
+ return 0;
+}
+
+/* return the combining class of character c (between 0 and 255) */
+static int unicode_get_cc(uint32_t c)
+{
+ uint32_t code, n, type, cc, c1, b;
+ int pos;
+ const uint8_t *p;
+
+ pos = get_index_pos(&code, c,
+ unicode_cc_index, sizeof(unicode_cc_index) / 3);
+ if (pos < 0)
+ return 0;
+ p = unicode_cc_table + pos;
+ /* Compressed run length encoding:
+ - 2 high order bits are combining class type
+ - 0:0, 1:230, 2:extra byte linear progression, 3:extra byte
+ - 00..2F: range length (add 1)
+ - 30..37: 3-bit range-length + 1 extra byte
+ - 38..3F: 3-bit range-length + 2 extra byte
+ */
+ for(;;) {
+ b = *p++;
+ type = b >> 6;
+ n = b & 0x3f;
+ if (n < 48) {
+ } else if (n < 56) {
+ n = (n - 48) << 8;
+ n |= *p++;
+ n += 48;
+ } else {
+ n = (n - 56) << 8;
+ n |= *p++ << 8;
+ n |= *p++;
+ n += 48 + (1 << 11);
+ }
+ if (type <= 1)
+ p++;
+ c1 = code + n + 1;
+ if (c < c1) {
+ switch(type) {
+ case 0:
+ cc = p[-1];
+ break;
+ case 1:
+ cc = p[-1] + c - code;
+ break;
+ case 2:
+ cc = 0;
+ break;
+ default:
+ case 3:
+ cc = 230;
+ break;
+ }
+ return cc;
+ }
+ code = c1;
+ }
+}
+
+static void sort_cc(int *buf, int len)
+{
+ int i, j, k, cc, cc1, start, ch1;
+
+ for(i = 0; i < len; i++) {
+ cc = unicode_get_cc(buf[i]);
+ if (cc != 0) {
+ start = i;
+ j = i + 1;
+ while (j < len) {
+ ch1 = buf[j];
+ cc1 = unicode_get_cc(ch1);
+ if (cc1 == 0)
+ break;
+ k = j - 1;
+ while (k >= start) {
+ if (unicode_get_cc(buf[k]) <= cc1)
+ break;
+ buf[k + 1] = buf[k];
+ k--;
+ }
+ buf[k + 1] = ch1;
+ j++;
+ }
+#if 0
+ printf("cc:");
+ for(k = start; k < j; k++) {
+ printf(" %3d", unicode_get_cc(buf[k]));
+ }
+ printf("\n");
+#endif
+ i = j;
+ }
+ }
+}
+
+static void to_nfd_rec(DynBuf *dbuf,
+ const int *src, int src_len, int is_compat)
+{
+ uint32_t c, v;
+ int i, l;
+ uint32_t res[UNICODE_DECOMP_LEN_MAX];
+
+ for(i = 0; i < src_len; i++) {
+ c = src[i];
+ if (c >= 0xac00 && c < 0xd7a4) {
+ /* Hangul decomposition */
+ c -= 0xac00;
+ dbuf_put_u32(dbuf, 0x1100 + c / 588);
+ dbuf_put_u32(dbuf, 0x1161 + (c % 588) / 28);
+ v = c % 28;
+ if (v != 0)
+ dbuf_put_u32(dbuf, 0x11a7 + v);
+ } else {
+ l = unicode_decomp_char(res, c, is_compat);
+ if (l) {
+ to_nfd_rec(dbuf, (int *)res, l, is_compat);
+ } else {
+ dbuf_put_u32(dbuf, c);
+ }
+ }
+ }
+}
+
+/* return 0 if not found */
+static int compose_pair(uint32_t c0, uint32_t c1)
+{
+ /* Hangul composition */
+ if (c0 >= 0x1100 && c0 < 0x1100 + 19 &&
+ c1 >= 0x1161 && c1 < 0x1161 + 21) {
+ return 0xac00 + (c0 - 0x1100) * 588 + (c1 - 0x1161) * 28;
+ } else if (c0 >= 0xac00 && c0 < 0xac00 + 11172 &&
+ (c0 - 0xac00) % 28 == 0 &&
+ c1 >= 0x11a7 && c1 < 0x11a7 + 28) {
+ return c0 + c1 - 0x11a7;
+ } else {
+ return unicode_compose_pair(c0, c1);
+ }
+}
+
+int unicode_normalize(uint32_t **pdst, const uint32_t *src, int src_len,
+ UnicodeNormalizationEnum n_type,
+ void *opaque, DynBufReallocFunc *realloc_func)
+{
+ int *buf, buf_len, i, p, starter_pos, cc, last_cc, out_len;
+ BOOL is_compat;
+ DynBuf dbuf_s, *dbuf = &dbuf_s;
+
+ is_compat = n_type >> 1;
+
+ dbuf_init2(dbuf, opaque, realloc_func);
+ if (dbuf_realloc(dbuf, sizeof(int) * src_len))
+ goto fail;
+
+ /* common case: latin1 is unaffected by NFC */
+ if (n_type == UNICODE_NFC) {
+ for(i = 0; i < src_len; i++) {
+ if (src[i] >= 0x100)
+ goto not_latin1;
+ }
+ buf = (int *)dbuf->buf;
+ memcpy(buf, src, src_len * sizeof(int));
+ *pdst = (uint32_t *)buf;
+ return src_len;
+ not_latin1: ;
+ }
+
+ to_nfd_rec(dbuf, (const int *)src, src_len, is_compat);
+ if (dbuf_error(dbuf)) {
+ fail:
+ *pdst = NULL;
+ return -1;
+ }
+ buf = (int *)dbuf->buf;
+ buf_len = dbuf->size / sizeof(int);
+
+ sort_cc(buf, buf_len);
+
+ if (buf_len <= 1 || (n_type & 1) != 0) {
+ /* NFD / NFKD */
+ *pdst = (uint32_t *)buf;
+ return buf_len;
+ }
+
+ i = 1;
+ out_len = 1;
+ while (i < buf_len) {
+ /* find the starter character and test if it is blocked from
+ the character at 'i' */
+ last_cc = unicode_get_cc(buf[i]);
+ starter_pos = out_len - 1;
+ while (starter_pos >= 0) {
+ cc = unicode_get_cc(buf[starter_pos]);
+ if (cc == 0)
+ break;
+ if (cc >= last_cc)
+ goto next;
+ last_cc = 256;
+ starter_pos--;
+ }
+ if (starter_pos >= 0 &&
+ (p = compose_pair(buf[starter_pos], buf[i])) != 0) {
+ buf[starter_pos] = p;
+ i++;
+ } else {
+ next:
+ buf[out_len++] = buf[i++];
+ }
+ }
+ *pdst = (uint32_t *)buf;
+ return out_len;
+}
+
+/* char ranges for various unicode properties */
+
+static int unicode_find_name(const char *name_table, const char *name)
+{
+ const char *p, *r;
+ int pos;
+ size_t name_len, len;
+
+ p = name_table;
+ pos = 0;
+ name_len = strlen(name);
+ while (*p) {
+ for(;;) {
+ r = strchr(p, ',');
+ if (!r)
+ len = strlen(p);
+ else
+ len = r - p;
+ if (len == name_len && !memcmp(p, name, name_len))
+ return pos;
+ p += len + 1;
+ if (!r)
+ break;
+ }
+ pos++;
+ }
+ return -1;
+}
+
+/* 'cr' must be initialized and empty. Return 0 if OK, -1 if error, -2
+ if not found */
+int unicode_script(CharRange *cr,
+ const char *script_name, BOOL is_ext)
+{
+ int script_idx;
+ const uint8_t *p, *p_end;
+ uint32_t c, c1, b, n, v, v_len, i, type;
+ CharRange cr1_s, *cr1;
+ CharRange cr2_s, *cr2 = &cr2_s;
+ BOOL is_common;
+
+ script_idx = unicode_find_name(unicode_script_name_table, script_name);
+ if (script_idx < 0)
+ return -2;
+ /* Note: we remove the "Unknown" Script */
+ script_idx += UNICODE_SCRIPT_Unknown + 1;
+
+ is_common = (script_idx == UNICODE_SCRIPT_Common ||
+ script_idx == UNICODE_SCRIPT_Inherited);
+ if (is_ext) {
+ cr1 = &cr1_s;
+ cr_init(cr1, cr->mem_opaque, cr->realloc_func);
+ cr_init(cr2, cr->mem_opaque, cr->realloc_func);
+ } else {
+ cr1 = cr;
+ }
+
+ p = unicode_script_table;
+ p_end = unicode_script_table + countof(unicode_script_table);
+ c = 0;
+ while (p < p_end) {
+ b = *p++;
+ type = b >> 7;
+ n = b & 0x7f;
+ if (n < 96) {
+ } else if (n < 112) {
+ n = (n - 96) << 8;
+ n |= *p++;
+ n += 96;
+ } else {
+ n = (n - 112) << 16;
+ n |= *p++ << 8;
+ n |= *p++;
+ n += 96 + (1 << 12);
+ }
+ if (type == 0)
+ v = 0;
+ else
+ v = *p++;
+ c1 = c + n + 1;
+ if (v == script_idx) {
+ if (cr_add_interval(cr1, c, c1))
+ goto fail;
+ }
+ c = c1;
+ }
+
+ if (is_ext) {
+ /* add the script extensions */
+ p = unicode_script_ext_table;
+ p_end = unicode_script_ext_table + countof(unicode_script_ext_table);
+ c = 0;
+ while (p < p_end) {
+ b = *p++;
+ if (b < 128) {
+ n = b;
+ } else if (b < 128 + 64) {
+ n = (b - 128) << 8;
+ n |= *p++;
+ n += 128;
+ } else {
+ n = (b - 128 - 64) << 16;
+ n |= *p++ << 8;
+ n |= *p++;
+ n += 128 + (1 << 14);
+ }
+ c1 = c + n + 1;
+ v_len = *p++;
+ if (is_common) {
+ if (v_len != 0) {
+ if (cr_add_interval(cr2, c, c1))
+ goto fail;
+ }
+ } else {
+ for(i = 0; i < v_len; i++) {
+ if (p[i] == script_idx) {
+ if (cr_add_interval(cr2, c, c1))
+ goto fail;
+ break;
+ }
+ }
+ }
+ p += v_len;
+ c = c1;
+ }
+ if (is_common) {
+ /* remove all the characters with script extensions */
+ if (cr_invert(cr2))
+ goto fail;
+ if (cr_op(cr, cr1->points, cr1->len, cr2->points, cr2->len,
+ CR_OP_INTER))
+ goto fail;
+ } else {
+ if (cr_op(cr, cr1->points, cr1->len, cr2->points, cr2->len,
+ CR_OP_UNION))
+ goto fail;
+ }
+ cr_free(cr1);
+ cr_free(cr2);
+ }
+ return 0;
+ fail:
+ if (is_ext) {
+ cr_free(cr1);
+ cr_free(cr2);
+ }
+ goto fail;
+}
+
+#define M(id) (1U << UNICODE_GC_ ## id)
+
+static int unicode_general_category1(CharRange *cr, uint32_t gc_mask)
+{
+ const uint8_t *p, *p_end;
+ uint32_t c, c0, b, n, v;
+
+ p = unicode_gc_table;
+ p_end = unicode_gc_table + countof(unicode_gc_table);
+ c = 0;
+ /* Compressed range encoding:
+ initial byte:
+ bits 0..4: category number (special case 31)
+ bits 5..7: range length (add 1)
+ special case bits 5..7 == 7: read an extra byte
+ - 00..7F: range length (add 7 + 1)
+ - 80..BF: 6-bits plus extra byte for range length (add 7 + 128)
+ - C0..FF: 6-bits plus 2 extra bytes for range length (add 7 + 128 + 16384)
+ */
+ while (p < p_end) {
+ b = *p++;
+ n = b >> 5;
+ v = b & 0x1f;
+ if (n == 7) {
+ n = *p++;
+ if (n < 128) {
+ n += 7;
+ } else if (n < 128 + 64) {
+ n = (n - 128) << 8;
+ n |= *p++;
+ n += 7 + 128;
+ } else {
+ n = (n - 128 - 64) << 16;
+ n |= *p++ << 8;
+ n |= *p++;
+ n += 7 + 128 + (1 << 14);
+ }
+ }
+ c0 = c;
+ c += n + 1;
+ if (v == 31) {
+ /* run of Lu / Ll */
+ b = gc_mask & (M(Lu) | M(Ll));
+ if (b != 0) {
+ if (b == (M(Lu) | M(Ll))) {
+ goto add_range;
+ } else {
+ c0 += ((gc_mask & M(Ll)) != 0);
+ for(; c0 < c; c0 += 2) {
+ if (cr_add_interval(cr, c0, c0 + 1))
+ return -1;
+ }
+ }
+ }
+ } else if ((gc_mask >> v) & 1) {
+ add_range:
+ if (cr_add_interval(cr, c0, c))
+ return -1;
+ }
+ }
+ return 0;
+}
+
+static int unicode_prop1(CharRange *cr, int prop_idx)
+{
+ const uint8_t *p, *p_end;
+ uint32_t c, c0, b, bit;
+
+ p = unicode_prop_table[prop_idx];
+ p_end = p + unicode_prop_len_table[prop_idx];
+ c = 0;
+ bit = 0;
+ /* Compressed range encoding:
+ 00..3F: 2 packed lengths: 3-bit + 3-bit
+ 40..5F: 5-bits plus extra byte for length
+ 60..7F: 5-bits plus 2 extra bytes for length
+ 80..FF: 7-bit length
+ lengths must be incremented to get character count
+ Ranges alternate between false and true return value.
+ */
+ while (p < p_end) {
+ c0 = c;
+ b = *p++;
+ if (b < 64) {
+ c += (b >> 3) + 1;
+ if (bit) {
+ if (cr_add_interval(cr, c0, c))
+ return -1;
+ }
+ bit ^= 1;
+ c0 = c;
+ c += (b & 7) + 1;
+ } else if (b >= 0x80) {
+ c += b - 0x80 + 1;
+ } else if (b < 0x60) {
+ c += (((b - 0x40) << 8) | p[0]) + 1;
+ p++;
+ } else {
+ c += (((b - 0x60) << 16) | (p[0] << 8) | p[1]) + 1;
+ p += 2;
+ }
+ if (bit) {
+ if (cr_add_interval(cr, c0, c))
+ return -1;
+ }
+ bit ^= 1;
+ }
+ return 0;
+}
+
+#define CASE_U (1 << 0)
+#define CASE_L (1 << 1)
+#define CASE_F (1 << 2)
+
+/* use the case conversion table to generate range of characters.
+ CASE_U: set char if modified by uppercasing,
+ CASE_L: set char if modified by lowercasing,
+ CASE_F: set char if modified by case folding,
+ */
+static int unicode_case1(CharRange *cr, int case_mask)
+{
+#define MR(x) (1 << RUN_TYPE_ ## x)
+ const uint32_t tab_run_mask[3] = {
+ MR(U) | MR(UF) | MR(UL) | MR(LSU) | MR(U2L_399_EXT2) | MR(UF_D20) |
+ MR(UF_D1_EXT) | MR(U_EXT) | MR(UF_EXT2) | MR(UF_EXT3),
+
+ MR(L) | MR(LF) | MR(UL) | MR(LSU) | MR(U2L_399_EXT2) | MR(LF_EXT) | MR(LF_EXT2),
+
+ MR(UF) | MR(LF) | MR(UL) | MR(LSU) | MR(U2L_399_EXT2) | MR(LF_EXT) | MR(LF_EXT2) | MR(UF_D20) | MR(UF_D1_EXT) | MR(LF_EXT) | MR(UF_EXT2) | MR(UF_EXT3),
+ };
+#undef MR
+ uint32_t mask, v, code, type, len, i, idx;
+
+ if (case_mask == 0)
+ return 0;
+ mask = 0;
+ for(i = 0; i < 3; i++) {
+ if ((case_mask >> i) & 1)
+ mask |= tab_run_mask[i];
+ }
+ for(idx = 0; idx < countof(case_conv_table1); idx++) {
+ v = case_conv_table1[idx];
+ type = (v >> (32 - 17 - 7 - 4)) & 0xf;
+ code = v >> (32 - 17);
+ len = (v >> (32 - 17 - 7)) & 0x7f;
+ if ((mask >> type) & 1) {
+ // printf("%d: type=%d %04x %04x\n", idx, type, code, code + len - 1);
+ switch(type) {
+ case RUN_TYPE_UL:
+ if ((case_mask & CASE_U) && (case_mask & (CASE_L | CASE_F)))
+ goto def_case;
+ code += ((case_mask & CASE_U) != 0);
+ for(i = 0; i < len; i += 2) {
+ if (cr_add_interval(cr, code + i, code + i + 1))
+ return -1;
+ }
+ break;
+ case RUN_TYPE_LSU:
+ if ((case_mask & CASE_U) && (case_mask & (CASE_L | CASE_F)))
+ goto def_case;
+ if (!(case_mask & CASE_U)) {
+ if (cr_add_interval(cr, code, code + 1))
+ return -1;
+ }
+ if (cr_add_interval(cr, code + 1, code + 2))
+ return -1;
+ if (case_mask & CASE_U) {
+ if (cr_add_interval(cr, code + 2, code + 3))
+ return -1;
+ }
+ break;
+ default:
+ def_case:
+ if (cr_add_interval(cr, code, code + len))
+ return -1;
+ break;
+ }
+ }
+ }
+ return 0;
+}
+
+static int point_cmp(const void *p1, const void *p2, void *arg)
+{
+ uint32_t v1 = *(uint32_t *)p1;
+ uint32_t v2 = *(uint32_t *)p2;
+ return (v1 > v2) - (v1 < v2);
+}
+
+static void cr_sort_and_remove_overlap(CharRange *cr)
+{
+ uint32_t start, end, start1, end1, i, j;
+
+ /* the resulting ranges are not necessarily sorted and may overlap */
+ rqsort(cr->points, cr->len / 2, sizeof(cr->points[0]) * 2, point_cmp, NULL);
+ j = 0;
+ for(i = 0; i < cr->len; ) {
+ start = cr->points[i];
+ end = cr->points[i + 1];
+ i += 2;
+ while (i < cr->len) {
+ start1 = cr->points[i];
+ end1 = cr->points[i + 1];
+ if (start1 > end) {
+ /* |------|
+ * |-------| */
+ break;
+ } else if (end1 <= end) {
+ /* |------|
+ * |--| */
+ i += 2;
+ } else {
+ /* |------|
+ * |-------| */
+ end = end1;
+ i += 2;
+ }
+ }
+ cr->points[j] = start;
+ cr->points[j + 1] = end;
+ j += 2;
+ }
+ cr->len = j;
+}
+
+/* canonicalize a character set using the JS regex case folding rules
+ (see lre_canonicalize()) */
+int cr_regexp_canonicalize(CharRange *cr, BOOL is_unicode)
+{
+ CharRange cr_inter, cr_mask, cr_result, cr_sub;
+ uint32_t v, code, len, i, idx, start, end, c, d_start, d_end, d;
+
+ cr_init(&cr_mask, cr->mem_opaque, cr->realloc_func);
+ cr_init(&cr_inter, cr->mem_opaque, cr->realloc_func);
+ cr_init(&cr_result, cr->mem_opaque, cr->realloc_func);
+ cr_init(&cr_sub, cr->mem_opaque, cr->realloc_func);
+
+ if (unicode_case1(&cr_mask, is_unicode ? CASE_F : CASE_U))
+ goto fail;
+ if (cr_op(&cr_inter, cr_mask.points, cr_mask.len, cr->points, cr->len, CR_OP_INTER))
+ goto fail;
+
+ if (cr_invert(&cr_mask))
+ goto fail;
+ if (cr_op(&cr_sub, cr_mask.points, cr_mask.len, cr->points, cr->len, CR_OP_INTER))
+ goto fail;
+
+ /* cr_inter = cr & cr_mask */
+ /* cr_sub = cr & ~cr_mask */
+
+ /* use the case conversion table to compute the result */
+ d_start = -1;
+ d_end = -1;
+ idx = 0;
+ v = case_conv_table1[idx];
+ code = v >> (32 - 17);
+ len = (v >> (32 - 17 - 7)) & 0x7f;
+ for(i = 0; i < cr_inter.len; i += 2) {
+ start = cr_inter.points[i];
+ end = cr_inter.points[i + 1];
+
+ for(c = start; c < end; c++) {
+ for(;;) {
+ if (c >= code && c < code + len)
+ break;
+ idx++;
+ assert(idx < countof(case_conv_table1));
+ v = case_conv_table1[idx];
+ code = v >> (32 - 17);
+ len = (v >> (32 - 17 - 7)) & 0x7f;
+ }
+ d = lre_case_folding_entry(c, idx, v, is_unicode);
+ /* try to merge with the current interval */
+ if (d_start == -1) {
+ d_start = d;
+ d_end = d + 1;
+ } else if (d_end == d) {
+ d_end++;
+ } else {
+ cr_add_interval(&cr_result, d_start, d_end);
+ d_start = d;
+ d_end = d + 1;
+ }
+ }
+ }
+ if (d_start != -1) {
+ if (cr_add_interval(&cr_result, d_start, d_end))
+ goto fail;
+ }
+
+ /* the resulting ranges are not necessarily sorted and may overlap */
+ cr_sort_and_remove_overlap(&cr_result);
+
+ /* or with the character not affected by the case folding */
+ cr->len = 0;
+ if (cr_op(cr, cr_result.points, cr_result.len, cr_sub.points, cr_sub.len, CR_OP_UNION))
+ goto fail;
+
+ cr_free(&cr_inter);
+ cr_free(&cr_mask);
+ cr_free(&cr_result);
+ cr_free(&cr_sub);
+ return 0;
+ fail:
+ cr_free(&cr_inter);
+ cr_free(&cr_mask);
+ cr_free(&cr_result);
+ cr_free(&cr_sub);
+ return -1;
+}
+
+typedef enum {
+ POP_GC,
+ POP_PROP,
+ POP_CASE,
+ POP_UNION,
+ POP_INTER,
+ POP_XOR,
+ POP_INVERT,
+ POP_END,
+} PropOPEnum;
+
+#define POP_STACK_LEN_MAX 4
+
+static int unicode_prop_ops(CharRange *cr, ...)
+{
+ va_list ap;
+ CharRange stack[POP_STACK_LEN_MAX];
+ int stack_len, op, ret, i;
+ uint32_t a;
+
+ va_start(ap, cr);
+ stack_len = 0;
+ for(;;) {
+ op = va_arg(ap, int);
+ switch(op) {
+ case POP_GC:
+ assert(stack_len < POP_STACK_LEN_MAX);
+ a = va_arg(ap, int);
+ cr_init(&stack[stack_len++], cr->mem_opaque, cr->realloc_func);
+ if (unicode_general_category1(&stack[stack_len - 1], a))
+ goto fail;
+ break;
+ case POP_PROP:
+ assert(stack_len < POP_STACK_LEN_MAX);
+ a = va_arg(ap, int);
+ cr_init(&stack[stack_len++], cr->mem_opaque, cr->realloc_func);
+ if (unicode_prop1(&stack[stack_len - 1], a))
+ goto fail;
+ break;
+ case POP_CASE:
+ assert(stack_len < POP_STACK_LEN_MAX);
+ a = va_arg(ap, int);
+ cr_init(&stack[stack_len++], cr->mem_opaque, cr->realloc_func);
+ if (unicode_case1(&stack[stack_len - 1], a))
+ goto fail;
+ break;
+ case POP_UNION:
+ case POP_INTER:
+ case POP_XOR:
+ {
+ CharRange *cr1, *cr2, *cr3;
+ assert(stack_len >= 2);
+ assert(stack_len < POP_STACK_LEN_MAX);
+ cr1 = &stack[stack_len - 2];
+ cr2 = &stack[stack_len - 1];
+ cr3 = &stack[stack_len++];
+ cr_init(cr3, cr->mem_opaque, cr->realloc_func);
+ if (cr_op(cr3, cr1->points, cr1->len,
+ cr2->points, cr2->len, op - POP_UNION + CR_OP_UNION))
+ goto fail;
+ cr_free(cr1);
+ cr_free(cr2);
+ *cr1 = *cr3;
+ stack_len -= 2;
+ }
+ break;
+ case POP_INVERT:
+ assert(stack_len >= 1);
+ if (cr_invert(&stack[stack_len - 1]))
+ goto fail;
+ break;
+ case POP_END:
+ goto done;
+ default:
+ abort();
+ }
+ }
+ done:
+ assert(stack_len == 1);
+ ret = cr_copy(cr, &stack[0]);
+ cr_free(&stack[0]);
+ return ret;
+ fail:
+ for(i = 0; i < stack_len; i++)
+ cr_free(&stack[i]);
+ return -1;
+}
+
+static const uint32_t unicode_gc_mask_table[] = {
+ M(Lu) | M(Ll) | M(Lt), /* LC */
+ M(Lu) | M(Ll) | M(Lt) | M(Lm) | M(Lo), /* L */
+ M(Mn) | M(Mc) | M(Me), /* M */
+ M(Nd) | M(Nl) | M(No), /* N */
+ M(Sm) | M(Sc) | M(Sk) | M(So), /* S */
+ M(Pc) | M(Pd) | M(Ps) | M(Pe) | M(Pi) | M(Pf) | M(Po), /* P */
+ M(Zs) | M(Zl) | M(Zp), /* Z */
+ M(Cc) | M(Cf) | M(Cs) | M(Co) | M(Cn), /* C */
+};
+
+/* 'cr' must be initialized and empty. Return 0 if OK, -1 if error, -2
+ if not found */
+int unicode_general_category(CharRange *cr, const char *gc_name)
+{
+ int gc_idx;
+ uint32_t gc_mask;
+
+ gc_idx = unicode_find_name(unicode_gc_name_table, gc_name);
+ if (gc_idx < 0)
+ return -2;
+ if (gc_idx <= UNICODE_GC_Co) {
+ gc_mask = (uint64_t)1 << gc_idx;
+ } else {
+ gc_mask = unicode_gc_mask_table[gc_idx - UNICODE_GC_LC];
+ }
+ return unicode_general_category1(cr, gc_mask);
+}
+
+
+/* 'cr' must be initialized and empty. Return 0 if OK, -1 if error, -2
+ if not found */
+int unicode_prop(CharRange *cr, const char *prop_name)
+{
+ int prop_idx, ret;
+
+ prop_idx = unicode_find_name(unicode_prop_name_table, prop_name);
+ if (prop_idx < 0)
+ return -2;
+ prop_idx += UNICODE_PROP_ASCII_Hex_Digit;
+
+ ret = 0;
+ switch(prop_idx) {
+ case UNICODE_PROP_ASCII:
+ if (cr_add_interval(cr, 0x00, 0x7f + 1))
+ return -1;
+ break;
+ case UNICODE_PROP_Any:
+ if (cr_add_interval(cr, 0x00000, 0x10ffff + 1))
+ return -1;
+ break;
+ case UNICODE_PROP_Assigned:
+ ret = unicode_prop_ops(cr,
+ POP_GC, M(Cn),
+ POP_INVERT,
+ POP_END);
+ break;
+ case UNICODE_PROP_Math:
+ ret = unicode_prop_ops(cr,
+ POP_GC, M(Sm),
+ POP_PROP, UNICODE_PROP_Other_Math,
+ POP_UNION,
+ POP_END);
+ break;
+ case UNICODE_PROP_Lowercase:
+ ret = unicode_prop_ops(cr,
+ POP_GC, M(Ll),
+ POP_PROP, UNICODE_PROP_Other_Lowercase,
+ POP_UNION,
+ POP_END);
+ break;
+ case UNICODE_PROP_Uppercase:
+ ret = unicode_prop_ops(cr,
+ POP_GC, M(Lu),
+ POP_PROP, UNICODE_PROP_Other_Uppercase,
+ POP_UNION,
+ POP_END);
+ break;
+ case UNICODE_PROP_Cased:
+ ret = unicode_prop_ops(cr,
+ POP_GC, M(Lu) | M(Ll) | M(Lt),
+ POP_PROP, UNICODE_PROP_Other_Uppercase,
+ POP_UNION,
+ POP_PROP, UNICODE_PROP_Other_Lowercase,
+ POP_UNION,
+ POP_END);
+ break;
+ case UNICODE_PROP_Alphabetic:
+ ret = unicode_prop_ops(cr,
+ POP_GC, M(Lu) | M(Ll) | M(Lt) | M(Lm) | M(Lo) | M(Nl),
+ POP_PROP, UNICODE_PROP_Other_Uppercase,
+ POP_UNION,
+ POP_PROP, UNICODE_PROP_Other_Lowercase,
+ POP_UNION,
+ POP_PROP, UNICODE_PROP_Other_Alphabetic,
+ POP_UNION,
+ POP_END);
+ break;
+ case UNICODE_PROP_Grapheme_Base:
+ ret = unicode_prop_ops(cr,
+ POP_GC, M(Cc) | M(Cf) | M(Cs) | M(Co) | M(Cn) | M(Zl) | M(Zp) | M(Me) | M(Mn),
+ POP_PROP, UNICODE_PROP_Other_Grapheme_Extend,
+ POP_UNION,
+ POP_INVERT,
+ POP_END);
+ break;
+ case UNICODE_PROP_Grapheme_Extend:
+ ret = unicode_prop_ops(cr,
+ POP_GC, M(Me) | M(Mn),
+ POP_PROP, UNICODE_PROP_Other_Grapheme_Extend,
+ POP_UNION,
+ POP_END);
+ break;
+ case UNICODE_PROP_XID_Start:
+ ret = unicode_prop_ops(cr,
+ POP_GC, M(Lu) | M(Ll) | M(Lt) | M(Lm) | M(Lo) | M(Nl),
+ POP_PROP, UNICODE_PROP_Other_ID_Start,
+ POP_UNION,
+ POP_PROP, UNICODE_PROP_Pattern_Syntax,
+ POP_PROP, UNICODE_PROP_Pattern_White_Space,
+ POP_UNION,
+ POP_PROP, UNICODE_PROP_XID_Start1,
+ POP_UNION,
+ POP_INVERT,
+ POP_INTER,
+ POP_END);
+ break;
+ case UNICODE_PROP_XID_Continue:
+ ret = unicode_prop_ops(cr,
+ POP_GC, M(Lu) | M(Ll) | M(Lt) | M(Lm) | M(Lo) | M(Nl) |
+ M(Mn) | M(Mc) | M(Nd) | M(Pc),
+ POP_PROP, UNICODE_PROP_Other_ID_Start,
+ POP_UNION,
+ POP_PROP, UNICODE_PROP_Other_ID_Continue,
+ POP_UNION,
+ POP_PROP, UNICODE_PROP_Pattern_Syntax,
+ POP_PROP, UNICODE_PROP_Pattern_White_Space,
+ POP_UNION,
+ POP_PROP, UNICODE_PROP_XID_Continue1,
+ POP_UNION,
+ POP_INVERT,
+ POP_INTER,
+ POP_END);
+ break;
+ case UNICODE_PROP_Changes_When_Uppercased:
+ ret = unicode_case1(cr, CASE_U);
+ break;
+ case UNICODE_PROP_Changes_When_Lowercased:
+ ret = unicode_case1(cr, CASE_L);
+ break;
+ case UNICODE_PROP_Changes_When_Casemapped:
+ ret = unicode_case1(cr, CASE_U | CASE_L | CASE_F);
+ break;
+ case UNICODE_PROP_Changes_When_Titlecased:
+ ret = unicode_prop_ops(cr,
+ POP_CASE, CASE_U,
+ POP_PROP, UNICODE_PROP_Changes_When_Titlecased1,
+ POP_XOR,
+ POP_END);
+ break;
+ case UNICODE_PROP_Changes_When_Casefolded:
+ ret = unicode_prop_ops(cr,
+ POP_CASE, CASE_F,
+ POP_PROP, UNICODE_PROP_Changes_When_Casefolded1,
+ POP_XOR,
+ POP_END);
+ break;
+ case UNICODE_PROP_Changes_When_NFKC_Casefolded:
+ ret = unicode_prop_ops(cr,
+ POP_CASE, CASE_F,
+ POP_PROP, UNICODE_PROP_Changes_When_NFKC_Casefolded1,
+ POP_XOR,
+ POP_END);
+ break;
+#if 0
+ case UNICODE_PROP_ID_Start:
+ ret = unicode_prop_ops(cr,
+ POP_GC, M(Lu) | M(Ll) | M(Lt) | M(Lm) | M(Lo) | M(Nl),
+ POP_PROP, UNICODE_PROP_Other_ID_Start,
+ POP_UNION,
+ POP_PROP, UNICODE_PROP_Pattern_Syntax,
+ POP_PROP, UNICODE_PROP_Pattern_White_Space,
+ POP_UNION,
+ POP_INVERT,
+ POP_INTER,
+ POP_END);
+ break;
+ case UNICODE_PROP_ID_Continue:
+ ret = unicode_prop_ops(cr,
+ POP_GC, M(Lu) | M(Ll) | M(Lt) | M(Lm) | M(Lo) | M(Nl) |
+ M(Mn) | M(Mc) | M(Nd) | M(Pc),
+ POP_PROP, UNICODE_PROP_Other_ID_Start,
+ POP_UNION,
+ POP_PROP, UNICODE_PROP_Other_ID_Continue,
+ POP_UNION,
+ POP_PROP, UNICODE_PROP_Pattern_Syntax,
+ POP_PROP, UNICODE_PROP_Pattern_White_Space,
+ POP_UNION,
+ POP_INVERT,
+ POP_INTER,
+ POP_END);
+ break;
+ case UNICODE_PROP_Case_Ignorable:
+ ret = unicode_prop_ops(cr,
+ POP_GC, M(Mn) | M(Cf) | M(Lm) | M(Sk),
+ POP_PROP, UNICODE_PROP_Case_Ignorable1,
+ POP_XOR,
+ POP_END);
+ break;
+#else
+ /* we use the existing tables */
+ case UNICODE_PROP_ID_Continue:
+ ret = unicode_prop_ops(cr,
+ POP_PROP, UNICODE_PROP_ID_Start,
+ POP_PROP, UNICODE_PROP_ID_Continue1,
+ POP_XOR,
+ POP_END);
+ break;
+#endif
+ default:
+ if (prop_idx >= countof(unicode_prop_table))
+ return -2;
+ ret = unicode_prop1(cr, prop_idx);
+ break;
+ }
+ return ret;
+}
+
+#endif /* CONFIG_ALL_UNICODE */
+
+/*---- lre codepoint categorizing functions ----*/
+
+#define S UNICODE_C_SPACE
+#define D UNICODE_C_DIGIT
+#define X UNICODE_C_XDIGIT
+#define U UNICODE_C_UPPER
+#define L UNICODE_C_LOWER
+#define _ UNICODE_C_UNDER
+#define d UNICODE_C_DOLLAR
+
+uint8_t const lre_ctype_bits[256] = {
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, S, S, S, S, S, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+
+ S, 0, 0, 0, d, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ X|D, X|D, X|D, X|D, X|D, X|D, X|D, X|D,
+ X|D, X|D, 0, 0, 0, 0, 0, 0,
+
+ 0, X|U, X|U, X|U, X|U, X|U, X|U, U,
+ U, U, U, U, U, U, U, U,
+ U, U, U, U, U, U, U, U,
+ U, U, U, 0, 0, 0, 0, _,
+
+ 0, X|L, X|L, X|L, X|L, X|L, X|L, L,
+ L, L, L, L, L, L, L, L,
+ L, L, L, L, L, L, L, L,
+ L, L, L, 0, 0, 0, 0, 0,
+
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+
+ S, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0,
+};
+
+#undef S
+#undef D
+#undef X
+#undef U
+#undef L
+#undef _
+#undef d
+
+/* code point ranges for Zs,Zl or Zp property */
+static const uint16_t char_range_s[] = {
+ 10,
+ 0x0009, 0x000D + 1,
+ 0x0020, 0x0020 + 1,
+ 0x00A0, 0x00A0 + 1,
+ 0x1680, 0x1680 + 1,
+ 0x2000, 0x200A + 1,
+ /* 2028;LINE SEPARATOR;Zl;0;WS;;;;;N;;;;; */
+ /* 2029;PARAGRAPH SEPARATOR;Zp;0;B;;;;;N;;;;; */
+ 0x2028, 0x2029 + 1,
+ 0x202F, 0x202F + 1,
+ 0x205F, 0x205F + 1,
+ 0x3000, 0x3000 + 1,
+ /* FEFF;ZERO WIDTH NO-BREAK SPACE;Cf;0;BN;;;;;N;BYTE ORDER MARK;;;; */
+ 0xFEFF, 0xFEFF + 1,
+};
+
+BOOL lre_is_space_non_ascii(uint32_t c)
+{
+ size_t i, n;
+
+ n = countof(char_range_s);
+ for(i = 5; i < n; i += 2) {
+ uint32_t low = char_range_s[i];
+ uint32_t high = char_range_s[i + 1];
+ if (c < low)
+ return FALSE;
+ if (c < high)
+ return TRUE;
+ }
+ return FALSE;
+}
diff --git a/src/couch_quickjs/quickjs/libunicode.h b/src/couch_quickjs/quickjs/libunicode.h
new file mode 100644
index 0000000..cc2f244
--- /dev/null
+++ b/src/couch_quickjs/quickjs/libunicode.h
@@ -0,0 +1,182 @@
+/*
+ * Unicode utilities
+ *
+ * Copyright (c) 2017-2018 Fabrice Bellard
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+#ifndef LIBUNICODE_H
+#define LIBUNICODE_H
+
+#include <stdint.h>
+
+/* define it to include all the unicode tables (40KB larger) */
+#define CONFIG_ALL_UNICODE
+
+#define LRE_CC_RES_LEN_MAX 3
+
+/* char ranges */
+
+typedef struct {
+ int len; /* in points, always even */
+ int size;
+ uint32_t *points; /* points sorted by increasing value */
+ void *mem_opaque;
+ void *(*realloc_func)(void *opaque, void *ptr, size_t size);
+} CharRange;
+
+typedef enum {
+ CR_OP_UNION,
+ CR_OP_INTER,
+ CR_OP_XOR,
+} CharRangeOpEnum;
+
+void cr_init(CharRange *cr, void *mem_opaque, void *(*realloc_func)(void *opaque, void *ptr, size_t size));
+void cr_free(CharRange *cr);
+int cr_realloc(CharRange *cr, int size);
+int cr_copy(CharRange *cr, const CharRange *cr1);
+
+static inline int cr_add_point(CharRange *cr, uint32_t v)
+{
+ if (cr->len >= cr->size) {
+ if (cr_realloc(cr, cr->len + 1))
+ return -1;
+ }
+ cr->points[cr->len++] = v;
+ return 0;
+}
+
+static inline int cr_add_interval(CharRange *cr, uint32_t c1, uint32_t c2)
+{
+ if ((cr->len + 2) > cr->size) {
+ if (cr_realloc(cr, cr->len + 2))
+ return -1;
+ }
+ cr->points[cr->len++] = c1;
+ cr->points[cr->len++] = c2;
+ return 0;
+}
+
+int cr_union1(CharRange *cr, const uint32_t *b_pt, int b_len);
+
+static inline int cr_union_interval(CharRange *cr, uint32_t c1, uint32_t c2)
+{
+ uint32_t b_pt[2];
+ b_pt[0] = c1;
+ b_pt[1] = c2 + 1;
+ return cr_union1(cr, b_pt, 2);
+}
+
+int cr_op(CharRange *cr, const uint32_t *a_pt, int a_len,
+ const uint32_t *b_pt, int b_len, int op);
+
+int cr_invert(CharRange *cr);
+
+int cr_regexp_canonicalize(CharRange *cr, int is_unicode);
+
+typedef enum {
+ UNICODE_NFC,
+ UNICODE_NFD,
+ UNICODE_NFKC,
+ UNICODE_NFKD,
+} UnicodeNormalizationEnum;
+
+int unicode_normalize(uint32_t **pdst, const uint32_t *src, int src_len,
+ UnicodeNormalizationEnum n_type,
+ void *opaque, void *(*realloc_func)(void *opaque, void *ptr, size_t size));
+
+/* Unicode character range functions */
+
+int unicode_script(CharRange *cr, const char *script_name, int is_ext);
+int unicode_general_category(CharRange *cr, const char *gc_name);
+int unicode_prop(CharRange *cr, const char *prop_name);
+
+int lre_case_conv(uint32_t *res, uint32_t c, int conv_type);
+int lre_canonicalize(uint32_t c, int is_unicode);
+
+/* Code point type categories */
+enum {
+ UNICODE_C_SPACE = (1 << 0),
+ UNICODE_C_DIGIT = (1 << 1),
+ UNICODE_C_UPPER = (1 << 2),
+ UNICODE_C_LOWER = (1 << 3),
+ UNICODE_C_UNDER = (1 << 4),
+ UNICODE_C_DOLLAR = (1 << 5),
+ UNICODE_C_XDIGIT = (1 << 6),
+};
+extern uint8_t const lre_ctype_bits[256];
+
+/* zero or non-zero return value */
+int lre_is_cased(uint32_t c);
+int lre_is_case_ignorable(uint32_t c);
+int lre_is_id_start(uint32_t c);
+int lre_is_id_continue(uint32_t c);
+
+static inline int lre_is_space_byte(uint8_t c) {
+ return lre_ctype_bits[c] & UNICODE_C_SPACE;
+}
+
+static inline int lre_is_id_start_byte(uint8_t c) {
+ return lre_ctype_bits[c] & (UNICODE_C_UPPER | UNICODE_C_LOWER |
+ UNICODE_C_UNDER | UNICODE_C_DOLLAR);
+}
+
+static inline int lre_is_id_continue_byte(uint8_t c) {
+ return lre_ctype_bits[c] & (UNICODE_C_UPPER | UNICODE_C_LOWER |
+ UNICODE_C_UNDER | UNICODE_C_DOLLAR |
+ UNICODE_C_DIGIT);
+}
+
+int lre_is_space_non_ascii(uint32_t c);
+
+static inline int lre_is_space(uint32_t c) {
+ if (c < 256)
+ return lre_is_space_byte(c);
+ else
+ return lre_is_space_non_ascii(c);
+}
+
+static inline int lre_js_is_ident_first(uint32_t c) {
+ if (c < 128) {
+ return lre_is_id_start_byte(c);
+ } else {
+#ifdef CONFIG_ALL_UNICODE
+ return lre_is_id_start(c);
+#else
+ return !lre_is_space_non_ascii(c);
+#endif
+ }
+}
+
+static inline int lre_js_is_ident_next(uint32_t c) {
+ if (c < 128) {
+ return lre_is_id_continue_byte(c);
+ } else {
+ /* ZWNJ and ZWJ are accepted in identifiers */
+ if (c >= 0x200C && c <= 0x200D)
+ return TRUE;
+#ifdef CONFIG_ALL_UNICODE
+ return lre_is_id_continue(c);
+#else
+ return !lre_is_space_non_ascii(c);
+#endif
+ }
+}
+
+#endif /* LIBUNICODE_H */
diff --git a/src/couch_quickjs/quickjs/list.h b/src/couch_quickjs/quickjs/list.h
new file mode 100644
index 0000000..8098311
--- /dev/null
+++ b/src/couch_quickjs/quickjs/list.h
@@ -0,0 +1,99 @@
+/*
+ * Linux klist like system
+ *
+ * Copyright (c) 2016-2017 Fabrice Bellard
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+#ifndef LIST_H
+#define LIST_H
+
+#ifndef NULL
+#include <stddef.h>
+#endif
+
+struct list_head {
+ struct list_head *prev;
+ struct list_head *next;
+};
+
+#define LIST_HEAD_INIT(el) { &(el), &(el) }
+
+/* return the pointer of type 'type *' containing 'el' as field 'member' */
+#define list_entry(el, type, member) container_of(el, type, member)
+
+static inline void init_list_head(struct list_head *head)
+{
+ head->prev = head;
+ head->next = head;
+}
+
+/* insert 'el' between 'prev' and 'next' */
+static inline void __list_add(struct list_head *el,
+ struct list_head *prev, struct list_head *next)
+{
+ prev->next = el;
+ el->prev = prev;
+ el->next = next;
+ next->prev = el;
+}
+
+/* add 'el' at the head of the list 'head' (= after element head) */
+static inline void list_add(struct list_head *el, struct list_head *head)
+{
+ __list_add(el, head, head->next);
+}
+
+/* add 'el' at the end of the list 'head' (= before element head) */
+static inline void list_add_tail(struct list_head *el, struct list_head *head)
+{
+ __list_add(el, head->prev, head);
+}
+
+static inline void list_del(struct list_head *el)
+{
+ struct list_head *prev, *next;
+ prev = el->prev;
+ next = el->next;
+ prev->next = next;
+ next->prev = prev;
+ el->prev = NULL; /* fail safe */
+ el->next = NULL; /* fail safe */
+}
+
+static inline int list_empty(struct list_head *el)
+{
+ return el->next == el;
+}
+
+#define list_for_each(el, head) \
+ for(el = (head)->next; el != (head); el = el->next)
+
+#define list_for_each_safe(el, el1, head) \
+ for(el = (head)->next, el1 = el->next; el != (head); \
+ el = el1, el1 = el->next)
+
+#define list_for_each_prev(el, head) \
+ for(el = (head)->prev; el != (head); el = el->prev)
+
+#define list_for_each_prev_safe(el, el1, head) \
+ for(el = (head)->prev, el1 = el->prev; el != (head); \
+ el = el1, el1 = el->prev)
+
+#endif /* LIST_H */
diff --git a/src/couch_quickjs/quickjs/qjsc.c b/src/couch_quickjs/quickjs/qjsc.c
new file mode 100644
index 0000000..46f52a6
--- /dev/null
+++ b/src/couch_quickjs/quickjs/qjsc.c
@@ -0,0 +1,761 @@
+/*
+ * QuickJS command line compiler
+ *
+ * Copyright (c) 2018-2021 Fabrice Bellard
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdarg.h>
+#include <inttypes.h>
+#include <string.h>
+#include <assert.h>
+#include <unistd.h>
+#include <errno.h>
+#if !defined(_WIN32)
+#include <sys/wait.h>
+#endif
+
+#include "cutils.h"
+#include "quickjs-libc.h"
+
+typedef struct {
+ char *name;
+ char *short_name;
+ int flags;
+} namelist_entry_t;
+
+typedef struct namelist_t {
+ namelist_entry_t *array;
+ int count;
+ int size;
+} namelist_t;
+
+typedef struct {
+ const char *option_name;
+ const char *init_name;
+} FeatureEntry;
+
+static namelist_t cname_list;
+static namelist_t cmodule_list;
+static namelist_t init_module_list;
+static uint64_t feature_bitmap;
+static FILE *outfile;
+static BOOL byte_swap;
+static BOOL dynamic_export;
+static const char *c_ident_prefix = "qjsc_";
+
+#define FE_ALL (-1)
+
+static const FeatureEntry feature_list[] = {
+ { "date", "Date" },
+ { "eval", "Eval" },
+ { "string-normalize", "StringNormalize" },
+ { "regexp", "RegExp" },
+ { "json", "JSON" },
+ { "proxy", "Proxy" },
+ { "map", "MapSet" },
+ { "typedarray", "TypedArrays" },
+ { "promise", "Promise" },
+#define FE_MODULE_LOADER 9
+ { "module-loader", NULL },
+ { "bigint", "BigInt" },
+};
+
+void namelist_add(namelist_t *lp, const char *name, const char *short_name,
+ int flags)
+{
+ namelist_entry_t *e;
+ if (lp->count == lp->size) {
+ size_t newsize = lp->size + (lp->size >> 1) + 4;
+ namelist_entry_t *a =
+ realloc(lp->array, sizeof(lp->array[0]) * newsize);
+ /* XXX: check for realloc failure */
+ lp->array = a;
+ lp->size = newsize;
+ }
+ e = &lp->array[lp->count++];
+ e->name = strdup(name);
+ if (short_name)
+ e->short_name = strdup(short_name);
+ else
+ e->short_name = NULL;
+ e->flags = flags;
+}
+
+void namelist_free(namelist_t *lp)
+{
+ while (lp->count > 0) {
+ namelist_entry_t *e = &lp->array[--lp->count];
+ free(e->name);
+ free(e->short_name);
+ }
+ free(lp->array);
+ lp->array = NULL;
+ lp->size = 0;
+}
+
+namelist_entry_t *namelist_find(namelist_t *lp, const char *name)
+{
+ int i;
+ for(i = 0; i < lp->count; i++) {
+ namelist_entry_t *e = &lp->array[i];
+ if (!strcmp(e->name, name))
+ return e;
+ }
+ return NULL;
+}
+
+static void get_c_name(char *buf, size_t buf_size, const char *file)
+{
+ const char *p, *r;
+ size_t len, i;
+ int c;
+ char *q;
+
+ p = strrchr(file, '/');
+ if (!p)
+ p = file;
+ else
+ p++;
+ r = strrchr(p, '.');
+ if (!r)
+ len = strlen(p);
+ else
+ len = r - p;
+ pstrcpy(buf, buf_size, c_ident_prefix);
+ q = buf + strlen(buf);
+ for(i = 0; i < len; i++) {
+ c = p[i];
+ if (!((c >= '0' && c <= '9') ||
+ (c >= 'A' && c <= 'Z') ||
+ (c >= 'a' && c <= 'z'))) {
+ c = '_';
+ }
+ if ((q - buf) < buf_size - 1)
+ *q++ = c;
+ }
+ *q = '\0';
+}
+
+static void dump_hex(FILE *f, const uint8_t *buf, size_t len)
+{
+ size_t i, col;
+ col = 0;
+ for(i = 0; i < len; i++) {
+ fprintf(f, " 0x%02x,", buf[i]);
+ if (++col == 8) {
+ fprintf(f, "\n");
+ col = 0;
+ }
+ }
+ if (col != 0)
+ fprintf(f, "\n");
+}
+
+static void output_object_code(JSContext *ctx,
+ FILE *fo, JSValueConst obj, const char *c_name,
+ BOOL load_only)
+{
+ uint8_t *out_buf;
+ size_t out_buf_len;
+ int flags;
+ flags = JS_WRITE_OBJ_BYTECODE;
+ if (byte_swap)
+ flags |= JS_WRITE_OBJ_BSWAP;
+ out_buf = JS_WriteObject(ctx, &out_buf_len, obj, flags);
+ if (!out_buf) {
+ js_std_dump_error(ctx);
+ exit(1);
+ }
+
+ namelist_add(&cname_list, c_name, NULL, load_only);
+
+ fprintf(fo, "const uint32_t %s_size = %u;\n\n",
+ c_name, (unsigned int)out_buf_len);
+ fprintf(fo, "const uint8_t %s[%u] = {\n",
+ c_name, (unsigned int)out_buf_len);
+ dump_hex(fo, out_buf, out_buf_len);
+ fprintf(fo, "};\n\n");
+
+ js_free(ctx, out_buf);
+}
+
+static int js_module_dummy_init(JSContext *ctx, JSModuleDef *m)
+{
+ /* should never be called when compiling JS code */
+ abort();
+}
+
+static void find_unique_cname(char *cname, size_t cname_size)
+{
+ char cname1[1024];
+ int suffix_num;
+ size_t len, max_len;
+ assert(cname_size >= 32);
+ /* find a C name not matching an existing module C name by
+ adding a numeric suffix */
+ len = strlen(cname);
+ max_len = cname_size - 16;
+ if (len > max_len)
+ cname[max_len] = '\0';
+ suffix_num = 1;
+ for(;;) {
+ snprintf(cname1, sizeof(cname1), "%s_%d", cname, suffix_num);
+ if (!namelist_find(&cname_list, cname1))
+ break;
+ suffix_num++;
+ }
+ pstrcpy(cname, cname_size, cname1);
+}
+
+JSModuleDef *jsc_module_loader(JSContext *ctx,
+ const char *module_name, void *opaque)
+{
+ JSModuleDef *m;
+ namelist_entry_t *e;
+
+ /* check if it is a declared C or system module */
+ e = namelist_find(&cmodule_list, module_name);
+ if (e) {
+ /* add in the static init module list */
+ namelist_add(&init_module_list, e->name, e->short_name, 0);
+ /* create a dummy module */
+ m = JS_NewCModule(ctx, module_name, js_module_dummy_init);
+ } else if (has_suffix(module_name, ".so")) {
+ fprintf(stderr, "Warning: binary module '%s' will be dynamically loaded\n", module_name);
+ /* create a dummy module */
+ m = JS_NewCModule(ctx, module_name, js_module_dummy_init);
+ /* the resulting executable will export its symbols for the
+ dynamic library */
+ dynamic_export = TRUE;
+ } else {
+ size_t buf_len;
+ uint8_t *buf;
+ JSValue func_val;
+ char cname[1024];
+
+ buf = js_load_file(ctx, &buf_len, module_name);
+ if (!buf) {
+ JS_ThrowReferenceError(ctx, "could not load module filename '%s'",
+ module_name);
+ return NULL;
+ }
+
+ /* compile the module */
+ func_val = JS_Eval(ctx, (char *)buf, buf_len, module_name,
+ JS_EVAL_TYPE_MODULE | JS_EVAL_FLAG_COMPILE_ONLY);
+ js_free(ctx, buf);
+ if (JS_IsException(func_val))
+ return NULL;
+ get_c_name(cname, sizeof(cname), module_name);
+ if (namelist_find(&cname_list, cname)) {
+ find_unique_cname(cname, sizeof(cname));
+ }
+ output_object_code(ctx, outfile, func_val, cname, TRUE);
+
+ /* the module is already referenced, so we must free it */
+ m = JS_VALUE_GET_PTR(func_val);
+ JS_FreeValue(ctx, func_val);
+ }
+ return m;
+}
+
+static void compile_file(JSContext *ctx, FILE *fo,
+ const char *filename,
+ const char *c_name1,
+ int module)
+{
+ uint8_t *buf;
+ char c_name[1024];
+ int eval_flags;
+ JSValue obj;
+ size_t buf_len;
+
+ buf = js_load_file(ctx, &buf_len, filename);
+ if (!buf) {
+ fprintf(stderr, "Could not load '%s'\n", filename);
+ exit(1);
+ }
+ eval_flags = JS_EVAL_FLAG_COMPILE_ONLY;
+ if (module < 0) {
+ module = (has_suffix(filename, ".mjs") ||
+ JS_DetectModule((const char *)buf, buf_len));
+ }
+ if (module)
+ eval_flags |= JS_EVAL_TYPE_MODULE;
+ else
+ eval_flags |= JS_EVAL_TYPE_GLOBAL;
+ obj = JS_Eval(ctx, (const char *)buf, buf_len, filename, eval_flags);
+ if (JS_IsException(obj)) {
+ js_std_dump_error(ctx);
+ exit(1);
+ }
+ js_free(ctx, buf);
+ if (c_name1) {
+ pstrcpy(c_name, sizeof(c_name), c_name1);
+ } else {
+ get_c_name(c_name, sizeof(c_name), filename);
+ }
+ output_object_code(ctx, fo, obj, c_name, FALSE);
+ JS_FreeValue(ctx, obj);
+}
+
+static const char main_c_template1[] =
+ "int main(int argc, char **argv)\n"
+ "{\n"
+ " JSRuntime *rt;\n"
+ " JSContext *ctx;\n"
+ " rt = JS_NewRuntime();\n"
+ " js_std_set_worker_new_context_func(JS_NewCustomContext);\n"
+ " js_std_init_handlers(rt);\n"
+ ;
+
+static const char main_c_template2[] =
+ " js_std_loop(ctx);\n"
+ " js_std_free_handlers(rt);\n"
+ " JS_FreeContext(ctx);\n"
+ " JS_FreeRuntime(rt);\n"
+ " return 0;\n"
+ "}\n";
+
+#define PROG_NAME "qjsc"
+
+void help(void)
+{
+ printf("QuickJS Compiler version " CONFIG_VERSION "\n"
+ "usage: " PROG_NAME " [options] [files]\n"
+ "\n"
+ "options are:\n"
+ "-c only output bytecode to a C file\n"
+ "-e output main() and bytecode to a C file (default = executable output)\n"
+ "-o output set the output filename\n"
+ "-N cname set the C name of the generated data\n"
+ "-m compile as Javascript module (default=autodetect)\n"
+ "-D module_name compile a dynamically loaded module or worker\n"
+ "-M module_name[,cname] add initialization code for an external C module\n"
+ "-x byte swapped output\n"
+ "-p prefix set the prefix of the generated C names\n"
+ "-S n set the maximum stack size to 'n' bytes (default=%d)\n",
+ JS_DEFAULT_STACK_SIZE);
+#ifdef CONFIG_LTO
+ {
+ int i;
+ printf("-flto use link time optimization\n");
+ printf("-fbignum enable bignum extensions\n");
+ printf("-fno-[");
+ for(i = 0; i < countof(feature_list); i++) {
+ if (i != 0)
+ printf("|");
+ printf("%s", feature_list[i].option_name);
+ }
+ printf("]\n"
+ " disable selected language features (smaller code size)\n");
+ }
+#endif
+ exit(1);
+}
+
+#if defined(CONFIG_CC) && !defined(_WIN32)
+
+int exec_cmd(char **argv)
+{
+ int pid, status, ret;
+
+ pid = fork();
+ if (pid == 0) {
+ execvp(argv[0], argv);
+ exit(1);
+ }
+
+ for(;;) {
+ ret = waitpid(pid, &status, 0);
+ if (ret == pid && WIFEXITED(status))
+ break;
+ }
+ return WEXITSTATUS(status);
+}
+
+static int output_executable(const char *out_filename, const char *cfilename,
+ BOOL use_lto, BOOL verbose, const char *exename)
+{
+ const char *argv[64];
+ const char **arg, *bn_suffix, *lto_suffix;
+ char libjsname[1024];
+ char exe_dir[1024], inc_dir[1024], lib_dir[1024], buf[1024], *p;
+ int ret;
+
+ /* get the directory of the executable */
+ pstrcpy(exe_dir, sizeof(exe_dir), exename);
+ p = strrchr(exe_dir, '/');
+ if (p) {
+ *p = '\0';
+ } else {
+ pstrcpy(exe_dir, sizeof(exe_dir), ".");
+ }
+
+ /* if 'quickjs.h' is present at the same path as the executable, we
+ use it as include and lib directory */
+ snprintf(buf, sizeof(buf), "%s/quickjs.h", exe_dir);
+ if (access(buf, R_OK) == 0) {
+ pstrcpy(inc_dir, sizeof(inc_dir), exe_dir);
+ pstrcpy(lib_dir, sizeof(lib_dir), exe_dir);
+ } else {
+ snprintf(inc_dir, sizeof(inc_dir), "%s/include/quickjs", CONFIG_PREFIX);
+ snprintf(lib_dir, sizeof(lib_dir), "%s/lib/quickjs", CONFIG_PREFIX);
+ }
+
+ lto_suffix = "";
+ bn_suffix = "";
+
+ arg = argv;
+ *arg++ = CONFIG_CC;
+ *arg++ = "-O2";
+#ifdef CONFIG_LTO
+ if (use_lto) {
+ *arg++ = "-flto";
+ lto_suffix = ".lto";
+ }
+#endif
+ /* XXX: use the executable path to find the includes files and
+ libraries */
+ *arg++ = "-D";
+ *arg++ = "_GNU_SOURCE";
+ *arg++ = "-I";
+ *arg++ = inc_dir;
+ *arg++ = "-o";
+ *arg++ = out_filename;
+ if (dynamic_export)
+ *arg++ = "-rdynamic";
+ *arg++ = cfilename;
+ snprintf(libjsname, sizeof(libjsname), "%s/libquickjs%s%s.a",
+ lib_dir, bn_suffix, lto_suffix);
+ *arg++ = libjsname;
+ *arg++ = "-lm";
+ *arg++ = "-ldl";
+ *arg++ = "-lpthread";
+ *arg = NULL;
+
+ if (verbose) {
+ for(arg = argv; *arg != NULL; arg++)
+ printf("%s ", *arg);
+ printf("\n");
+ }
+
+ ret = exec_cmd((char **)argv);
+ unlink(cfilename);
+ return ret;
+}
+#else
+static int output_executable(const char *out_filename, const char *cfilename,
+ BOOL use_lto, BOOL verbose, const char *exename)
+{
+ fprintf(stderr, "Executable output is not supported for this target\n");
+ exit(1);
+ return 0;
+}
+#endif
+
+
+typedef enum {
+ OUTPUT_C,
+ OUTPUT_C_MAIN,
+ OUTPUT_EXECUTABLE,
+} OutputTypeEnum;
+
+int main(int argc, char **argv)
+{
+ int c, i, verbose;
+ const char *out_filename, *cname;
+ char cfilename[1024];
+ FILE *fo;
+ JSRuntime *rt;
+ JSContext *ctx;
+ BOOL use_lto;
+ int module;
+ OutputTypeEnum output_type;
+ size_t stack_size;
+#ifdef CONFIG_BIGNUM
+ BOOL bignum_ext = FALSE;
+#endif
+ namelist_t dynamic_module_list;
+
+ out_filename = NULL;
+ output_type = OUTPUT_EXECUTABLE;
+ cname = NULL;
+ feature_bitmap = FE_ALL;
+ module = -1;
+ byte_swap = FALSE;
+ verbose = 0;
+ use_lto = FALSE;
+ stack_size = 0;
+ memset(&dynamic_module_list, 0, sizeof(dynamic_module_list));
+
+ /* add system modules */
+ namelist_add(&cmodule_list, "std", "std", 0);
+ namelist_add(&cmodule_list, "os", "os", 0);
+
+ for(;;) {
+ c = getopt(argc, argv, "ho:cN:f:mxevM:p:S:D:");
+ if (c == -1)
+ break;
+ switch(c) {
+ case 'h':
+ help();
+ case 'o':
+ out_filename = optarg;
+ break;
+ case 'c':
+ output_type = OUTPUT_C;
+ break;
+ case 'e':
+ output_type = OUTPUT_C_MAIN;
+ break;
+ case 'N':
+ cname = optarg;
+ break;
+ case 'f':
+ {
+ const char *p;
+ p = optarg;
+ if (!strcmp(optarg, "lto")) {
+ use_lto = TRUE;
+ } else if (strstart(p, "no-", &p)) {
+ use_lto = TRUE;
+ for(i = 0; i < countof(feature_list); i++) {
+ if (!strcmp(p, feature_list[i].option_name)) {
+ feature_bitmap &= ~((uint64_t)1 << i);
+ break;
+ }
+ }
+ if (i == countof(feature_list))
+ goto bad_feature;
+ } else
+#ifdef CONFIG_BIGNUM
+ if (!strcmp(optarg, "bignum")) {
+ bignum_ext = TRUE;
+ } else
+#endif
+ {
+ bad_feature:
+ fprintf(stderr, "unsupported feature: %s\n", optarg);
+ exit(1);
+ }
+ }
+ break;
+ case 'm':
+ module = 1;
+ break;
+ case 'M':
+ {
+ char *p;
+ char path[1024];
+ char cname[1024];
+ pstrcpy(path, sizeof(path), optarg);
+ p = strchr(path, ',');
+ if (p) {
+ *p = '\0';
+ pstrcpy(cname, sizeof(cname), p + 1);
+ } else {
+ get_c_name(cname, sizeof(cname), path);
+ }
+ namelist_add(&cmodule_list, path, cname, 0);
+ }
+ break;
+ case 'D':
+ namelist_add(&dynamic_module_list, optarg, NULL, 0);
+ break;
+ case 'x':
+ byte_swap = TRUE;
+ break;
+ case 'v':
+ verbose++;
+ break;
+ case 'p':
+ c_ident_prefix = optarg;
+ break;
+ case 'S':
+ stack_size = (size_t)strtod(optarg, NULL);
+ break;
+ default:
+ break;
+ }
+ }
+
+ if (optind >= argc)
+ help();
+
+ if (!out_filename) {
+ if (output_type == OUTPUT_EXECUTABLE) {
+ out_filename = "a.out";
+ } else {
+ out_filename = "out.c";
+ }
+ }
+
+ if (output_type == OUTPUT_EXECUTABLE) {
+#if defined(_WIN32) || defined(__ANDROID__)
+ /* XXX: find a /tmp directory ? */
+ snprintf(cfilename, sizeof(cfilename), "out%d.c", getpid());
+#else
+ snprintf(cfilename, sizeof(cfilename), "/tmp/out%d.c", getpid());
+#endif
+ } else {
+ pstrcpy(cfilename, sizeof(cfilename), out_filename);
+ }
+
+ fo = fopen(cfilename, "w");
+ if (!fo) {
+ perror(cfilename);
+ exit(1);
+ }
+ outfile = fo;
+
+ rt = JS_NewRuntime();
+ ctx = JS_NewContext(rt);
+#ifdef CONFIG_BIGNUM
+ if (bignum_ext) {
+ JS_AddIntrinsicBigFloat(ctx);
+ JS_AddIntrinsicBigDecimal(ctx);
+ JS_AddIntrinsicOperators(ctx);
+ JS_EnableBignumExt(ctx, TRUE);
+ }
+#endif
+
+ /* loader for ES6 modules */
+ JS_SetModuleLoaderFunc(rt, NULL, jsc_module_loader, NULL);
+
+ fprintf(fo, "/* File generated automatically by the QuickJS compiler. */\n"
+ "\n"
+ );
+
+ if (output_type != OUTPUT_C) {
+ fprintf(fo, "#include \"quickjs-libc.h\"\n"
+ "\n"
+ );
+ } else {
+ fprintf(fo, "#include <inttypes.h>\n"
+ "\n"
+ );
+ }
+
+ for(i = optind; i < argc; i++) {
+ const char *filename = argv[i];
+ compile_file(ctx, fo, filename, cname, module);
+ cname = NULL;
+ }
+
+ for(i = 0; i < dynamic_module_list.count; i++) {
+ if (!jsc_module_loader(ctx, dynamic_module_list.array[i].name, NULL)) {
+ fprintf(stderr, "Could not load dynamic module '%s'\n",
+ dynamic_module_list.array[i].name);
+ exit(1);
+ }
+ }
+
+ if (output_type != OUTPUT_C) {
+ fprintf(fo,
+ "static JSContext *JS_NewCustomContext(JSRuntime *rt)\n"
+ "{\n"
+ " JSContext *ctx = JS_NewContextRaw(rt);\n"
+ " if (!ctx)\n"
+ " return NULL;\n");
+ /* add the basic objects */
+ fprintf(fo, " JS_AddIntrinsicBaseObjects(ctx);\n");
+ for(i = 0; i < countof(feature_list); i++) {
+ if ((feature_bitmap & ((uint64_t)1 << i)) &&
+ feature_list[i].init_name) {
+ fprintf(fo, " JS_AddIntrinsic%s(ctx);\n",
+ feature_list[i].init_name);
+ }
+ }
+#ifdef CONFIG_BIGNUM
+ if (bignum_ext) {
+ fprintf(fo,
+ " JS_AddIntrinsicBigFloat(ctx);\n"
+ " JS_AddIntrinsicBigDecimal(ctx);\n"
+ " JS_AddIntrinsicOperators(ctx);\n"
+ " JS_EnableBignumExt(ctx, 1);\n");
+ }
+#endif
+ /* add the precompiled modules (XXX: could modify the module
+ loader instead) */
+ for(i = 0; i < init_module_list.count; i++) {
+ namelist_entry_t *e = &init_module_list.array[i];
+ /* initialize the static C modules */
+
+ fprintf(fo,
+ " {\n"
+ " extern JSModuleDef *js_init_module_%s(JSContext *ctx, const char *name);\n"
+ " js_init_module_%s(ctx, \"%s\");\n"
+ " }\n",
+ e->short_name, e->short_name, e->name);
+ }
+ for(i = 0; i < cname_list.count; i++) {
+ namelist_entry_t *e = &cname_list.array[i];
+ if (e->flags) {
+ fprintf(fo, " js_std_eval_binary(ctx, %s, %s_size, 1);\n",
+ e->name, e->name);
+ }
+ }
+ fprintf(fo,
+ " return ctx;\n"
+ "}\n\n");
+
+ fputs(main_c_template1, fo);
+
+ if (stack_size != 0) {
+ fprintf(fo, " JS_SetMaxStackSize(rt, %u);\n",
+ (unsigned int)stack_size);
+ }
+
+ /* add the module loader if necessary */
+ if (feature_bitmap & (1 << FE_MODULE_LOADER)) {
+ fprintf(fo, " JS_SetModuleLoaderFunc(rt, NULL, js_module_loader, NULL);\n");
+ }
+
+ fprintf(fo,
+ " ctx = JS_NewCustomContext(rt);\n"
+ " js_std_add_helpers(ctx, argc, argv);\n");
+
+ for(i = 0; i < cname_list.count; i++) {
+ namelist_entry_t *e = &cname_list.array[i];
+ if (!e->flags) {
+ fprintf(fo, " js_std_eval_binary(ctx, %s, %s_size, 0);\n",
+ e->name, e->name);
+ }
+ }
+ fputs(main_c_template2, fo);
+ }
+
+ JS_FreeContext(ctx);
+ JS_FreeRuntime(rt);
+
+ fclose(fo);
+
+ if (output_type == OUTPUT_EXECUTABLE) {
+ return output_executable(out_filename, cfilename, use_lto, verbose,
+ argv[0]);
+ }
+ namelist_free(&cname_list);
+ namelist_free(&cmodule_list);
+ namelist_free(&init_module_list);
+ return 0;
+}
diff --git a/src/couch_quickjs/quickjs/quickjs-atom.h b/src/couch_quickjs/quickjs/quickjs-atom.h
new file mode 100644
index 0000000..f4d5838
--- /dev/null
+++ b/src/couch_quickjs/quickjs/quickjs-atom.h
@@ -0,0 +1,273 @@
+/*
+ * QuickJS atom definitions
+ *
+ * Copyright (c) 2017-2018 Fabrice Bellard
+ * Copyright (c) 2017-2018 Charlie Gordon
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifdef DEF
+
+/* Note: first atoms are considered as keywords in the parser */
+DEF(null, "null") /* must be first */
+DEF(false, "false")
+DEF(true, "true")
+DEF(if, "if")
+DEF(else, "else")
+DEF(return, "return")
+DEF(var, "var")
+DEF(this, "this")
+DEF(delete, "delete")
+DEF(void, "void")
+DEF(typeof, "typeof")
+DEF(new, "new")
+DEF(in, "in")
+DEF(instanceof, "instanceof")
+DEF(do, "do")
+DEF(while, "while")
+DEF(for, "for")
+DEF(break, "break")
+DEF(continue, "continue")
+DEF(switch, "switch")
+DEF(case, "case")
+DEF(default, "default")
+DEF(throw, "throw")
+DEF(try, "try")
+DEF(catch, "catch")
+DEF(finally, "finally")
+DEF(function, "function")
+DEF(debugger, "debugger")
+DEF(with, "with")
+/* FutureReservedWord */
+DEF(class, "class")
+DEF(const, "const")
+DEF(enum, "enum")
+DEF(export, "export")
+DEF(extends, "extends")
+DEF(import, "import")
+DEF(super, "super")
+/* FutureReservedWords when parsing strict mode code */
+DEF(implements, "implements")
+DEF(interface, "interface")
+DEF(let, "let")
+DEF(package, "package")
+DEF(private, "private")
+DEF(protected, "protected")
+DEF(public, "public")
+DEF(static, "static")
+DEF(yield, "yield")
+DEF(await, "await")
+
+/* empty string */
+DEF(empty_string, "")
+/* identifiers */
+DEF(length, "length")
+DEF(fileName, "fileName")
+DEF(lineNumber, "lineNumber")
+DEF(message, "message")
+DEF(cause, "cause")
+DEF(errors, "errors")
+DEF(stack, "stack")
+DEF(name, "name")
+DEF(toString, "toString")
+DEF(toLocaleString, "toLocaleString")
+DEF(valueOf, "valueOf")
+DEF(eval, "eval")
+DEF(prototype, "prototype")
+DEF(constructor, "constructor")
+DEF(configurable, "configurable")
+DEF(writable, "writable")
+DEF(enumerable, "enumerable")
+DEF(value, "value")
+DEF(get, "get")
+DEF(set, "set")
+DEF(of, "of")
+DEF(__proto__, "__proto__")
+DEF(undefined, "undefined")
+DEF(number, "number")
+DEF(boolean, "boolean")
+DEF(string, "string")
+DEF(object, "object")
+DEF(symbol, "symbol")
+DEF(integer, "integer")
+DEF(unknown, "unknown")
+DEF(arguments, "arguments")
+DEF(callee, "callee")
+DEF(caller, "caller")
+DEF(_eval_, "<eval>")
+DEF(_ret_, "<ret>")
+DEF(_var_, "<var>")
+DEF(_arg_var_, "<arg_var>")
+DEF(_with_, "<with>")
+DEF(lastIndex, "lastIndex")
+DEF(target, "target")
+DEF(index, "index")
+DEF(input, "input")
+DEF(defineProperties, "defineProperties")
+DEF(apply, "apply")
+DEF(join, "join")
+DEF(concat, "concat")
+DEF(split, "split")
+DEF(construct, "construct")
+DEF(getPrototypeOf, "getPrototypeOf")
+DEF(setPrototypeOf, "setPrototypeOf")
+DEF(isExtensible, "isExtensible")
+DEF(preventExtensions, "preventExtensions")
+DEF(has, "has")
+DEF(deleteProperty, "deleteProperty")
+DEF(defineProperty, "defineProperty")
+DEF(getOwnPropertyDescriptor, "getOwnPropertyDescriptor")
+DEF(ownKeys, "ownKeys")
+DEF(add, "add")
+DEF(done, "done")
+DEF(next, "next")
+DEF(values, "values")
+DEF(source, "source")
+DEF(flags, "flags")
+DEF(global, "global")
+DEF(unicode, "unicode")
+DEF(raw, "raw")
+DEF(new_target, "new.target")
+DEF(this_active_func, "this.active_func")
+DEF(home_object, "<home_object>")
+DEF(computed_field, "<computed_field>")
+DEF(static_computed_field, "<static_computed_field>") /* must come after computed_fields */
+DEF(class_fields_init, "<class_fields_init>")
+DEF(brand, "<brand>")
+DEF(hash_constructor, "#constructor")
+DEF(as, "as")
+DEF(from, "from")
+DEF(meta, "meta")
+DEF(_default_, "*default*")
+DEF(_star_, "*")
+DEF(Module, "Module")
+DEF(then, "then")
+DEF(resolve, "resolve")
+DEF(reject, "reject")
+DEF(promise, "promise")
+DEF(proxy, "proxy")
+DEF(revoke, "revoke")
+DEF(async, "async")
+DEF(exec, "exec")
+DEF(groups, "groups")
+DEF(indices, "indices")
+DEF(status, "status")
+DEF(reason, "reason")
+DEF(globalThis, "globalThis")
+DEF(bigint, "bigint")
+#ifdef CONFIG_BIGNUM
+DEF(bigfloat, "bigfloat")
+DEF(bigdecimal, "bigdecimal")
+DEF(roundingMode, "roundingMode")
+DEF(maximumSignificantDigits, "maximumSignificantDigits")
+DEF(maximumFractionDigits, "maximumFractionDigits")
+#endif
+/* the following 3 atoms are only used with CONFIG_ATOMICS */
+DEF(not_equal, "not-equal")
+DEF(timed_out, "timed-out")
+DEF(ok, "ok")
+/* */
+DEF(toJSON, "toJSON")
+/* class names */
+DEF(Object, "Object")
+DEF(Array, "Array")
+DEF(Error, "Error")
+DEF(Number, "Number")
+DEF(String, "String")
+DEF(Boolean, "Boolean")
+DEF(Symbol, "Symbol")
+DEF(Arguments, "Arguments")
+DEF(Math, "Math")
+DEF(JSON, "JSON")
+DEF(Date, "Date")
+DEF(Function, "Function")
+DEF(GeneratorFunction, "GeneratorFunction")
+DEF(ForInIterator, "ForInIterator")
+DEF(RegExp, "RegExp")
+DEF(ArrayBuffer, "ArrayBuffer")
+DEF(SharedArrayBuffer, "SharedArrayBuffer")
+/* must keep same order as class IDs for typed arrays */
+DEF(Uint8ClampedArray, "Uint8ClampedArray")
+DEF(Int8Array, "Int8Array")
+DEF(Uint8Array, "Uint8Array")
+DEF(Int16Array, "Int16Array")
+DEF(Uint16Array, "Uint16Array")
+DEF(Int32Array, "Int32Array")
+DEF(Uint32Array, "Uint32Array")
+DEF(BigInt64Array, "BigInt64Array")
+DEF(BigUint64Array, "BigUint64Array")
+DEF(Float32Array, "Float32Array")
+DEF(Float64Array, "Float64Array")
+DEF(DataView, "DataView")
+DEF(BigInt, "BigInt")
+#ifdef CONFIG_BIGNUM
+DEF(BigFloat, "BigFloat")
+DEF(BigFloatEnv, "BigFloatEnv")
+DEF(BigDecimal, "BigDecimal")
+DEF(OperatorSet, "OperatorSet")
+DEF(Operators, "Operators")
+#endif
+DEF(Map, "Map")
+DEF(Set, "Set") /* Map + 1 */
+DEF(WeakMap, "WeakMap") /* Map + 2 */
+DEF(WeakSet, "WeakSet") /* Map + 3 */
+DEF(Map_Iterator, "Map Iterator")
+DEF(Set_Iterator, "Set Iterator")
+DEF(Array_Iterator, "Array Iterator")
+DEF(String_Iterator, "String Iterator")
+DEF(RegExp_String_Iterator, "RegExp String Iterator")
+DEF(Generator, "Generator")
+DEF(Proxy, "Proxy")
+DEF(Promise, "Promise")
+DEF(PromiseResolveFunction, "PromiseResolveFunction")
+DEF(PromiseRejectFunction, "PromiseRejectFunction")
+DEF(AsyncFunction, "AsyncFunction")
+DEF(AsyncFunctionResolve, "AsyncFunctionResolve")
+DEF(AsyncFunctionReject, "AsyncFunctionReject")
+DEF(AsyncGeneratorFunction, "AsyncGeneratorFunction")
+DEF(AsyncGenerator, "AsyncGenerator")
+DEF(EvalError, "EvalError")
+DEF(RangeError, "RangeError")
+DEF(ReferenceError, "ReferenceError")
+DEF(SyntaxError, "SyntaxError")
+DEF(TypeError, "TypeError")
+DEF(URIError, "URIError")
+DEF(InternalError, "InternalError")
+/* private symbols */
+DEF(Private_brand, "<brand>")
+/* symbols */
+DEF(Symbol_toPrimitive, "Symbol.toPrimitive")
+DEF(Symbol_iterator, "Symbol.iterator")
+DEF(Symbol_match, "Symbol.match")
+DEF(Symbol_matchAll, "Symbol.matchAll")
+DEF(Symbol_replace, "Symbol.replace")
+DEF(Symbol_search, "Symbol.search")
+DEF(Symbol_split, "Symbol.split")
+DEF(Symbol_toStringTag, "Symbol.toStringTag")
+DEF(Symbol_isConcatSpreadable, "Symbol.isConcatSpreadable")
+DEF(Symbol_hasInstance, "Symbol.hasInstance")
+DEF(Symbol_species, "Symbol.species")
+DEF(Symbol_unscopables, "Symbol.unscopables")
+DEF(Symbol_asyncIterator, "Symbol.asyncIterator")
+#ifdef CONFIG_BIGNUM
+DEF(Symbol_operatorSet, "Symbol.operatorSet")
+#endif
+
+#endif /* DEF */
diff --git a/src/couch_quickjs/quickjs/quickjs-libc.c b/src/couch_quickjs/quickjs/quickjs-libc.c
new file mode 100644
index 0000000..dd9f55f
--- /dev/null
+++ b/src/couch_quickjs/quickjs/quickjs-libc.c
@@ -0,0 +1,4034 @@
+/*
+ * QuickJS C library
+ *
+ * Copyright (c) 2017-2021 Fabrice Bellard
+ * Copyright (c) 2017-2021 Charlie Gordon
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdarg.h>
+#include <inttypes.h>
+#include <string.h>
+#include <assert.h>
+#include <unistd.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <sys/time.h>
+#include <time.h>
+#include <signal.h>
+#include <limits.h>
+#include <sys/stat.h>
+#include <dirent.h>
+#if defined(_WIN32)
+#include <windows.h>
+#include <conio.h>
+#include <utime.h>
+#else
+#include <dlfcn.h>
+#include <termios.h>
+#include <sys/ioctl.h>
+#include <sys/wait.h>
+
+#if defined(__FreeBSD__)
+extern char **environ;
+#endif
+
+#if defined(__APPLE__) || defined(__FreeBSD__)
+typedef sig_t sighandler_t;
+#endif
+
+#if defined(__APPLE__)
+#if !defined(environ)
+#include <crt_externs.h>
+#define environ (*_NSGetEnviron())
+#endif
+#endif /* __APPLE__ */
+
+#endif
+
+#if !defined(_WIN32)
+/* enable the os.Worker API. IT relies on POSIX threads */
+#define USE_WORKER
+#endif
+
+#ifdef USE_WORKER
+#include <pthread.h>
+#include <stdatomic.h>
+#endif
+
+#include "cutils.h"
+#include "list.h"
+#include "quickjs-libc.h"
+
+/* TODO:
+ - add socket calls
+*/
+
+typedef struct {
+ struct list_head link;
+ int fd;
+ JSValue rw_func[2];
+} JSOSRWHandler;
+
+typedef struct {
+ struct list_head link;
+ int sig_num;
+ JSValue func;
+} JSOSSignalHandler;
+
+typedef struct {
+ struct list_head link;
+ int timer_id;
+ int64_t timeout;
+ JSValue func;
+} JSOSTimer;
+
+typedef struct {
+ struct list_head link;
+ uint8_t *data;
+ size_t data_len;
+ /* list of SharedArrayBuffers, necessary to free the message */
+ uint8_t **sab_tab;
+ size_t sab_tab_len;
+} JSWorkerMessage;
+
+typedef struct {
+ int ref_count;
+#ifdef USE_WORKER
+ pthread_mutex_t mutex;
+#endif
+ struct list_head msg_queue; /* list of JSWorkerMessage.link */
+ int read_fd;
+ int write_fd;
+} JSWorkerMessagePipe;
+
+typedef struct {
+ struct list_head link;
+ JSWorkerMessagePipe *recv_pipe;
+ JSValue on_message_func;
+} JSWorkerMessageHandler;
+
+typedef struct JSThreadState {
+ struct list_head os_rw_handlers; /* list of JSOSRWHandler.link */
+ struct list_head os_signal_handlers; /* list JSOSSignalHandler.link */
+ struct list_head os_timers; /* list of JSOSTimer.link */
+ struct list_head port_list; /* list of JSWorkerMessageHandler.link */
+ int eval_script_recurse; /* only used in the main thread */
+ int next_timer_id; /* for setTimeout() */
+ /* not used in the main thread */
+ JSWorkerMessagePipe *recv_pipe, *send_pipe;
+} JSThreadState;
+
+static uint64_t os_pending_signals;
+static int (*os_poll_func)(JSContext *ctx);
+
+static void js_std_dbuf_init(JSContext *ctx, DynBuf *s)
+{
+ dbuf_init2(s, JS_GetRuntime(ctx), (DynBufReallocFunc *)js_realloc_rt);
+}
+
+static BOOL my_isdigit(int c)
+{
+ return (c >= '0' && c <= '9');
+}
+
+static JSValue js_printf_internal(JSContext *ctx,
+ int argc, JSValueConst *argv, FILE *fp)
+{
+ char fmtbuf[32];
+ uint8_t cbuf[UTF8_CHAR_LEN_MAX+1];
+ JSValue res;
+ DynBuf dbuf;
+ const char *fmt_str = NULL;
+ const uint8_t *fmt, *fmt_end;
+ const uint8_t *p;
+ char *q;
+ int i, c, len, mod;
+ size_t fmt_len;
+ int32_t int32_arg;
+ int64_t int64_arg;
+ double double_arg;
+ const char *string_arg;
+ /* Use indirect call to dbuf_printf to prevent gcc warning */
+ int (*dbuf_printf_fun)(DynBuf *s, const char *fmt, ...) = (void*)dbuf_printf;
+
+ js_std_dbuf_init(ctx, &dbuf);
+
+ if (argc > 0) {
+ fmt_str = JS_ToCStringLen(ctx, &fmt_len, argv[0]);
+ if (!fmt_str)
+ goto fail;
+
+ i = 1;
+ fmt = (const uint8_t *)fmt_str;
+ fmt_end = fmt + fmt_len;
+ while (fmt < fmt_end) {
+ for (p = fmt; fmt < fmt_end && *fmt != '%'; fmt++)
+ continue;
+ dbuf_put(&dbuf, p, fmt - p);
+ if (fmt >= fmt_end)
+ break;
+ q = fmtbuf;
+ *q++ = *fmt++; /* copy '%' */
+
+ /* flags */
+ for(;;) {
+ c = *fmt;
+ if (c == '0' || c == '#' || c == '+' || c == '-' || c == ' ' ||
+ c == '\'') {
+ if (q >= fmtbuf + sizeof(fmtbuf) - 1)
+ goto invalid;
+ *q++ = c;
+ fmt++;
+ } else {
+ break;
+ }
+ }
+ /* width */
+ if (*fmt == '*') {
+ if (i >= argc)
+ goto missing;
+ if (JS_ToInt32(ctx, &int32_arg, argv[i++]))
+ goto fail;
+ q += snprintf(q, fmtbuf + sizeof(fmtbuf) - q, "%d", int32_arg);
+ fmt++;
+ } else {
+ while (my_isdigit(*fmt)) {
+ if (q >= fmtbuf + sizeof(fmtbuf) - 1)
+ goto invalid;
+ *q++ = *fmt++;
+ }
+ }
+ if (*fmt == '.') {
+ if (q >= fmtbuf + sizeof(fmtbuf) - 1)
+ goto invalid;
+ *q++ = *fmt++;
+ if (*fmt == '*') {
+ if (i >= argc)
+ goto missing;
+ if (JS_ToInt32(ctx, &int32_arg, argv[i++]))
+ goto fail;
+ q += snprintf(q, fmtbuf + sizeof(fmtbuf) - q, "%d", int32_arg);
+ fmt++;
+ } else {
+ while (my_isdigit(*fmt)) {
+ if (q >= fmtbuf + sizeof(fmtbuf) - 1)
+ goto invalid;
+ *q++ = *fmt++;
+ }
+ }
+ }
+
+ /* we only support the "l" modifier for 64 bit numbers */
+ mod = ' ';
+ if (*fmt == 'l') {
+ mod = *fmt++;
+ }
+
+ /* type */
+ c = *fmt++;
+ if (q >= fmtbuf + sizeof(fmtbuf) - 1)
+ goto invalid;
+ *q++ = c;
+ *q = '\0';
+
+ switch (c) {
+ case 'c':
+ if (i >= argc)
+ goto missing;
+ if (JS_IsString(argv[i])) {
+ string_arg = JS_ToCString(ctx, argv[i++]);
+ if (!string_arg)
+ goto fail;
+ int32_arg = unicode_from_utf8((const uint8_t *)string_arg, UTF8_CHAR_LEN_MAX, &p);
+ JS_FreeCString(ctx, string_arg);
+ } else {
+ if (JS_ToInt32(ctx, &int32_arg, argv[i++]))
+ goto fail;
+ }
+ /* handle utf-8 encoding explicitly */
+ if ((unsigned)int32_arg > 0x10FFFF)
+ int32_arg = 0xFFFD;
+ /* ignore conversion flags, width and precision */
+ len = unicode_to_utf8(cbuf, int32_arg);
+ dbuf_put(&dbuf, cbuf, len);
+ break;
+
+ case 'd':
+ case 'i':
+ case 'o':
+ case 'u':
+ case 'x':
+ case 'X':
+ if (i >= argc)
+ goto missing;
+ if (JS_ToInt64Ext(ctx, &int64_arg, argv[i++]))
+ goto fail;
+ if (mod == 'l') {
+ /* 64 bit number */
+#if defined(_WIN32)
+ if (q >= fmtbuf + sizeof(fmtbuf) - 3)
+ goto invalid;
+ q[2] = q[-1];
+ q[-1] = 'I';
+ q[0] = '6';
+ q[1] = '4';
+ q[3] = '\0';
+ dbuf_printf_fun(&dbuf, fmtbuf, (int64_t)int64_arg);
+#else
+ if (q >= fmtbuf + sizeof(fmtbuf) - 2)
+ goto invalid;
+ q[1] = q[-1];
+ q[-1] = q[0] = 'l';
+ q[2] = '\0';
+ dbuf_printf_fun(&dbuf, fmtbuf, (long long)int64_arg);
+#endif
+ } else {
+ dbuf_printf_fun(&dbuf, fmtbuf, (int)int64_arg);
+ }
+ break;
+
+ case 's':
+ if (i >= argc)
+ goto missing;
+ /* XXX: handle strings containing null characters */
+ string_arg = JS_ToCString(ctx, argv[i++]);
+ if (!string_arg)
+ goto fail;
+ dbuf_printf_fun(&dbuf, fmtbuf, string_arg);
+ JS_FreeCString(ctx, string_arg);
+ break;
+
+ case 'e':
+ case 'f':
+ case 'g':
+ case 'a':
+ case 'E':
+ case 'F':
+ case 'G':
+ case 'A':
+ if (i >= argc)
+ goto missing;
+ if (JS_ToFloat64(ctx, &double_arg, argv[i++]))
+ goto fail;
+ dbuf_printf_fun(&dbuf, fmtbuf, double_arg);
+ break;
+
+ case '%':
+ dbuf_putc(&dbuf, '%');
+ break;
+
+ default:
+ /* XXX: should support an extension mechanism */
+ invalid:
+ JS_ThrowTypeError(ctx, "invalid conversion specifier in format string");
+ goto fail;
+ missing:
+ JS_ThrowReferenceError(ctx, "missing argument for conversion specifier");
+ goto fail;
+ }
+ }
+ JS_FreeCString(ctx, fmt_str);
+ }
+ if (dbuf.error) {
+ res = JS_ThrowOutOfMemory(ctx);
+ } else {
+ if (fp) {
+ len = fwrite(dbuf.buf, 1, dbuf.size, fp);
+ res = JS_NewInt32(ctx, len);
+ } else {
+ res = JS_NewStringLen(ctx, (char *)dbuf.buf, dbuf.size);
+ }
+ }
+ dbuf_free(&dbuf);
+ return res;
+
+fail:
+ JS_FreeCString(ctx, fmt_str);
+ dbuf_free(&dbuf);
+ return JS_EXCEPTION;
+}
+
+uint8_t *js_load_file(JSContext *ctx, size_t *pbuf_len, const char *filename)
+{
+ FILE *f;
+ uint8_t *buf;
+ size_t buf_len;
+ long lret;
+
+ f = fopen(filename, "rb");
+ if (!f)
+ return NULL;
+ if (fseek(f, 0, SEEK_END) < 0)
+ goto fail;
+ lret = ftell(f);
+ if (lret < 0)
+ goto fail;
+ /* XXX: on Linux, ftell() return LONG_MAX for directories */
+ if (lret == LONG_MAX) {
+ errno = EISDIR;
+ goto fail;
+ }
+ buf_len = lret;
+ if (fseek(f, 0, SEEK_SET) < 0)
+ goto fail;
+ if (ctx)
+ buf = js_malloc(ctx, buf_len + 1);
+ else
+ buf = malloc(buf_len + 1);
+ if (!buf)
+ goto fail;
+ if (fread(buf, 1, buf_len, f) != buf_len) {
+ errno = EIO;
+ if (ctx)
+ js_free(ctx, buf);
+ else
+ free(buf);
+ fail:
+ fclose(f);
+ return NULL;
+ }
+ buf[buf_len] = '\0';
+ fclose(f);
+ *pbuf_len = buf_len;
+ return buf;
+}
+
+/* load and evaluate a file */
+static JSValue js_loadScript(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ uint8_t *buf;
+ const char *filename;
+ JSValue ret;
+ size_t buf_len;
+
+ filename = JS_ToCString(ctx, argv[0]);
+ if (!filename)
+ return JS_EXCEPTION;
+ buf = js_load_file(ctx, &buf_len, filename);
+ if (!buf) {
+ JS_ThrowReferenceError(ctx, "could not load '%s'", filename);
+ JS_FreeCString(ctx, filename);
+ return JS_EXCEPTION;
+ }
+ ret = JS_Eval(ctx, (char *)buf, buf_len, filename,
+ JS_EVAL_TYPE_GLOBAL);
+ js_free(ctx, buf);
+ JS_FreeCString(ctx, filename);
+ return ret;
+}
+
+/* load a file as a UTF-8 encoded string */
+static JSValue js_std_loadFile(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ uint8_t *buf;
+ const char *filename;
+ JSValue ret;
+ size_t buf_len;
+
+ filename = JS_ToCString(ctx, argv[0]);
+ if (!filename)
+ return JS_EXCEPTION;
+ buf = js_load_file(ctx, &buf_len, filename);
+ JS_FreeCString(ctx, filename);
+ if (!buf)
+ return JS_NULL;
+ ret = JS_NewStringLen(ctx, (char *)buf, buf_len);
+ js_free(ctx, buf);
+ return ret;
+}
+
+typedef JSModuleDef *(JSInitModuleFunc)(JSContext *ctx,
+ const char *module_name);
+
+
+#if defined(_WIN32)
+static JSModuleDef *js_module_loader_so(JSContext *ctx,
+ const char *module_name)
+{
+ JS_ThrowReferenceError(ctx, "shared library modules are not supported yet");
+ return NULL;
+}
+#else
+static JSModuleDef *js_module_loader_so(JSContext *ctx,
+ const char *module_name)
+{
+ JSModuleDef *m;
+ void *hd;
+ JSInitModuleFunc *init;
+ char *filename;
+
+ if (!strchr(module_name, '/')) {
+ /* must add a '/' so that the DLL is not searched in the
+ system library paths */
+ filename = js_malloc(ctx, strlen(module_name) + 2 + 1);
+ if (!filename)
+ return NULL;
+ strcpy(filename, "./");
+ strcpy(filename + 2, module_name);
+ } else {
+ filename = (char *)module_name;
+ }
+
+ /* C module */
+ hd = dlopen(filename, RTLD_NOW | RTLD_LOCAL);
+ if (filename != module_name)
+ js_free(ctx, filename);
+ if (!hd) {
+ JS_ThrowReferenceError(ctx, "could not load module filename '%s' as shared library",
+ module_name);
+ goto fail;
+ }
+
+ init = dlsym(hd, "js_init_module");
+ if (!init) {
+ JS_ThrowReferenceError(ctx, "could not load module filename '%s': js_init_module not found",
+ module_name);
+ goto fail;
+ }
+
+ m = init(ctx, module_name);
+ if (!m) {
+ JS_ThrowReferenceError(ctx, "could not load module filename '%s': initialization error",
+ module_name);
+ fail:
+ if (hd)
+ dlclose(hd);
+ return NULL;
+ }
+ return m;
+}
+#endif /* !_WIN32 */
+
+int js_module_set_import_meta(JSContext *ctx, JSValueConst func_val,
+ JS_BOOL use_realpath, JS_BOOL is_main)
+{
+ JSModuleDef *m;
+ char buf[PATH_MAX + 16];
+ JSValue meta_obj;
+ JSAtom module_name_atom;
+ const char *module_name;
+
+ assert(JS_VALUE_GET_TAG(func_val) == JS_TAG_MODULE);
+ m = JS_VALUE_GET_PTR(func_val);
+
+ module_name_atom = JS_GetModuleName(ctx, m);
+ module_name = JS_AtomToCString(ctx, module_name_atom);
+ JS_FreeAtom(ctx, module_name_atom);
+ if (!module_name)
+ return -1;
+ if (!strchr(module_name, ':')) {
+ strcpy(buf, "file://");
+#if !defined(_WIN32)
+ /* realpath() cannot be used with modules compiled with qjsc
+ because the corresponding module source code is not
+ necessarily present */
+ if (use_realpath) {
+ char *res = realpath(module_name, buf + strlen(buf));
+ if (!res) {
+ JS_ThrowTypeError(ctx, "realpath failure");
+ JS_FreeCString(ctx, module_name);
+ return -1;
+ }
+ } else
+#endif
+ {
+ pstrcat(buf, sizeof(buf), module_name);
+ }
+ } else {
+ pstrcpy(buf, sizeof(buf), module_name);
+ }
+ JS_FreeCString(ctx, module_name);
+
+ meta_obj = JS_GetImportMeta(ctx, m);
+ if (JS_IsException(meta_obj))
+ return -1;
+ JS_DefinePropertyValueStr(ctx, meta_obj, "url",
+ JS_NewString(ctx, buf),
+ JS_PROP_C_W_E);
+ JS_DefinePropertyValueStr(ctx, meta_obj, "main",
+ JS_NewBool(ctx, is_main),
+ JS_PROP_C_W_E);
+ JS_FreeValue(ctx, meta_obj);
+ return 0;
+}
+
+JSModuleDef *js_module_loader(JSContext *ctx,
+ const char *module_name, void *opaque)
+{
+ JSModuleDef *m;
+
+ if (has_suffix(module_name, ".so")) {
+ m = js_module_loader_so(ctx, module_name);
+ } else {
+ size_t buf_len;
+ uint8_t *buf;
+ JSValue func_val;
+
+ buf = js_load_file(ctx, &buf_len, module_name);
+ if (!buf) {
+ JS_ThrowReferenceError(ctx, "could not load module filename '%s'",
+ module_name);
+ return NULL;
+ }
+
+ /* compile the module */
+ func_val = JS_Eval(ctx, (char *)buf, buf_len, module_name,
+ JS_EVAL_TYPE_MODULE | JS_EVAL_FLAG_COMPILE_ONLY);
+ js_free(ctx, buf);
+ if (JS_IsException(func_val))
+ return NULL;
+ /* XXX: could propagate the exception */
+ js_module_set_import_meta(ctx, func_val, TRUE, FALSE);
+ /* the module is already referenced, so we must free it */
+ m = JS_VALUE_GET_PTR(func_val);
+ JS_FreeValue(ctx, func_val);
+ }
+ return m;
+}
+
+static JSValue js_std_exit(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ int status;
+ if (JS_ToInt32(ctx, &status, argv[0]))
+ status = -1;
+ exit(status);
+ return JS_UNDEFINED;
+}
+
+static JSValue js_std_getenv(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ const char *name, *str;
+ name = JS_ToCString(ctx, argv[0]);
+ if (!name)
+ return JS_EXCEPTION;
+ str = getenv(name);
+ JS_FreeCString(ctx, name);
+ if (!str)
+ return JS_UNDEFINED;
+ else
+ return JS_NewString(ctx, str);
+}
+
+#if defined(_WIN32)
+static void setenv(const char *name, const char *value, int overwrite)
+{
+ char *str;
+ size_t name_len, value_len;
+ name_len = strlen(name);
+ value_len = strlen(value);
+ str = malloc(name_len + 1 + value_len + 1);
+ memcpy(str, name, name_len);
+ str[name_len] = '=';
+ memcpy(str + name_len + 1, value, value_len);
+ str[name_len + 1 + value_len] = '\0';
+ _putenv(str);
+ free(str);
+}
+
+static void unsetenv(const char *name)
+{
+ setenv(name, "", TRUE);
+}
+#endif /* _WIN32 */
+
+static JSValue js_std_setenv(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ const char *name, *value;
+ name = JS_ToCString(ctx, argv[0]);
+ if (!name)
+ return JS_EXCEPTION;
+ value = JS_ToCString(ctx, argv[1]);
+ if (!value) {
+ JS_FreeCString(ctx, name);
+ return JS_EXCEPTION;
+ }
+ setenv(name, value, TRUE);
+ JS_FreeCString(ctx, name);
+ JS_FreeCString(ctx, value);
+ return JS_UNDEFINED;
+}
+
+static JSValue js_std_unsetenv(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ const char *name;
+ name = JS_ToCString(ctx, argv[0]);
+ if (!name)
+ return JS_EXCEPTION;
+ unsetenv(name);
+ JS_FreeCString(ctx, name);
+ return JS_UNDEFINED;
+}
+
+/* return an object containing the list of the available environment
+ variables. */
+static JSValue js_std_getenviron(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ char **envp;
+ const char *name, *p, *value;
+ JSValue obj;
+ uint32_t idx;
+ size_t name_len;
+ JSAtom atom;
+ int ret;
+
+ obj = JS_NewObject(ctx);
+ if (JS_IsException(obj))
+ return JS_EXCEPTION;
+ envp = environ;
+ for(idx = 0; envp[idx] != NULL; idx++) {
+ name = envp[idx];
+ p = strchr(name, '=');
+ name_len = p - name;
+ if (!p)
+ continue;
+ value = p + 1;
+ atom = JS_NewAtomLen(ctx, name, name_len);
+ if (atom == JS_ATOM_NULL)
+ goto fail;
+ ret = JS_DefinePropertyValue(ctx, obj, atom, JS_NewString(ctx, value),
+ JS_PROP_C_W_E);
+ JS_FreeAtom(ctx, atom);
+ if (ret < 0)
+ goto fail;
+ }
+ return obj;
+ fail:
+ JS_FreeValue(ctx, obj);
+ return JS_EXCEPTION;
+}
+
+static JSValue js_std_gc(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JS_RunGC(JS_GetRuntime(ctx));
+ return JS_UNDEFINED;
+}
+
+static int interrupt_handler(JSRuntime *rt, void *opaque)
+{
+ return (os_pending_signals >> SIGINT) & 1;
+}
+
+static int get_bool_option(JSContext *ctx, BOOL *pbool,
+ JSValueConst obj,
+ const char *option)
+{
+ JSValue val;
+ val = JS_GetPropertyStr(ctx, obj, option);
+ if (JS_IsException(val))
+ return -1;
+ if (!JS_IsUndefined(val)) {
+ *pbool = JS_ToBool(ctx, val);
+ }
+ JS_FreeValue(ctx, val);
+ return 0;
+}
+
+static JSValue js_evalScript(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSRuntime *rt = JS_GetRuntime(ctx);
+ JSThreadState *ts = JS_GetRuntimeOpaque(rt);
+ const char *str;
+ size_t len;
+ JSValue ret;
+ JSValueConst options_obj;
+ BOOL backtrace_barrier = FALSE;
+ BOOL is_async = FALSE;
+ int flags;
+
+ if (argc >= 2) {
+ options_obj = argv[1];
+ if (get_bool_option(ctx, &backtrace_barrier, options_obj,
+ "backtrace_barrier"))
+ return JS_EXCEPTION;
+ if (get_bool_option(ctx, &is_async, options_obj,
+ "async"))
+ return JS_EXCEPTION;
+ }
+
+ str = JS_ToCStringLen(ctx, &len, argv[0]);
+ if (!str)
+ return JS_EXCEPTION;
+ if (!ts->recv_pipe && ++ts->eval_script_recurse == 1) {
+ /* install the interrupt handler */
+ JS_SetInterruptHandler(JS_GetRuntime(ctx), interrupt_handler, NULL);
+ }
+ flags = JS_EVAL_TYPE_GLOBAL;
+ if (backtrace_barrier)
+ flags |= JS_EVAL_FLAG_BACKTRACE_BARRIER;
+ if (is_async)
+ flags |= JS_EVAL_FLAG_ASYNC;
+ ret = JS_Eval(ctx, str, len, "<evalScript>", flags);
+ JS_FreeCString(ctx, str);
+ if (!ts->recv_pipe && --ts->eval_script_recurse == 0) {
+ /* remove the interrupt handler */
+ JS_SetInterruptHandler(JS_GetRuntime(ctx), NULL, NULL);
+ os_pending_signals &= ~((uint64_t)1 << SIGINT);
+ /* convert the uncatchable "interrupted" error into a normal error
+ so that it can be caught by the REPL */
+ if (JS_IsException(ret))
+ JS_ResetUncatchableError(ctx);
+ }
+ return ret;
+}
+
+static JSClassID js_std_file_class_id;
+
+typedef struct {
+ FILE *f;
+ BOOL close_in_finalizer;
+ BOOL is_popen;
+} JSSTDFile;
+
+static void js_std_file_finalizer(JSRuntime *rt, JSValue val)
+{
+ JSSTDFile *s = JS_GetOpaque(val, js_std_file_class_id);
+ if (s) {
+ if (s->f && s->close_in_finalizer) {
+ if (s->is_popen)
+ pclose(s->f);
+ else
+ fclose(s->f);
+ }
+ js_free_rt(rt, s);
+ }
+}
+
+static ssize_t js_get_errno(ssize_t ret)
+{
+ if (ret == -1)
+ ret = -errno;
+ return ret;
+}
+
+static JSValue js_std_strerror(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ int err;
+ if (JS_ToInt32(ctx, &err, argv[0]))
+ return JS_EXCEPTION;
+ return JS_NewString(ctx, strerror(err));
+}
+
+static JSValue js_std_parseExtJSON(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValue obj;
+ const char *str;
+ size_t len;
+
+ str = JS_ToCStringLen(ctx, &len, argv[0]);
+ if (!str)
+ return JS_EXCEPTION;
+ obj = JS_ParseJSON2(ctx, str, len, "<input>", JS_PARSE_JSON_EXT);
+ JS_FreeCString(ctx, str);
+ return obj;
+}
+
+static JSValue js_new_std_file(JSContext *ctx, FILE *f,
+ BOOL close_in_finalizer,
+ BOOL is_popen)
+{
+ JSSTDFile *s;
+ JSValue obj;
+ obj = JS_NewObjectClass(ctx, js_std_file_class_id);
+ if (JS_IsException(obj))
+ return obj;
+ s = js_mallocz(ctx, sizeof(*s));
+ if (!s) {
+ JS_FreeValue(ctx, obj);
+ return JS_EXCEPTION;
+ }
+ s->close_in_finalizer = close_in_finalizer;
+ s->is_popen = is_popen;
+ s->f = f;
+ JS_SetOpaque(obj, s);
+ return obj;
+}
+
+static void js_set_error_object(JSContext *ctx, JSValue obj, int err)
+{
+ if (!JS_IsUndefined(obj)) {
+ JS_SetPropertyStr(ctx, obj, "errno", JS_NewInt32(ctx, err));
+ }
+}
+
+static JSValue js_std_open(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ const char *filename, *mode = NULL;
+ FILE *f;
+ int err;
+
+ filename = JS_ToCString(ctx, argv[0]);
+ if (!filename)
+ goto fail;
+ mode = JS_ToCString(ctx, argv[1]);
+ if (!mode)
+ goto fail;
+ if (mode[strspn(mode, "rwa+b")] != '\0') {
+ JS_ThrowTypeError(ctx, "invalid file mode");
+ goto fail;
+ }
+
+ f = fopen(filename, mode);
+ if (!f)
+ err = errno;
+ else
+ err = 0;
+ if (argc >= 3)
+ js_set_error_object(ctx, argv[2], err);
+ JS_FreeCString(ctx, filename);
+ JS_FreeCString(ctx, mode);
+ if (!f)
+ return JS_NULL;
+ return js_new_std_file(ctx, f, TRUE, FALSE);
+ fail:
+ JS_FreeCString(ctx, filename);
+ JS_FreeCString(ctx, mode);
+ return JS_EXCEPTION;
+}
+
+static JSValue js_std_popen(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ const char *filename, *mode = NULL;
+ FILE *f;
+ int err;
+
+ filename = JS_ToCString(ctx, argv[0]);
+ if (!filename)
+ goto fail;
+ mode = JS_ToCString(ctx, argv[1]);
+ if (!mode)
+ goto fail;
+ if (mode[strspn(mode, "rw")] != '\0') {
+ JS_ThrowTypeError(ctx, "invalid file mode");
+ goto fail;
+ }
+
+ f = popen(filename, mode);
+ if (!f)
+ err = errno;
+ else
+ err = 0;
+ if (argc >= 3)
+ js_set_error_object(ctx, argv[2], err);
+ JS_FreeCString(ctx, filename);
+ JS_FreeCString(ctx, mode);
+ if (!f)
+ return JS_NULL;
+ return js_new_std_file(ctx, f, TRUE, TRUE);
+ fail:
+ JS_FreeCString(ctx, filename);
+ JS_FreeCString(ctx, mode);
+ return JS_EXCEPTION;
+}
+
+static JSValue js_std_fdopen(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ const char *mode;
+ FILE *f;
+ int fd, err;
+
+ if (JS_ToInt32(ctx, &fd, argv[0]))
+ return JS_EXCEPTION;
+ mode = JS_ToCString(ctx, argv[1]);
+ if (!mode)
+ goto fail;
+ if (mode[strspn(mode, "rwa+")] != '\0') {
+ JS_ThrowTypeError(ctx, "invalid file mode");
+ goto fail;
+ }
+
+ f = fdopen(fd, mode);
+ if (!f)
+ err = errno;
+ else
+ err = 0;
+ if (argc >= 3)
+ js_set_error_object(ctx, argv[2], err);
+ JS_FreeCString(ctx, mode);
+ if (!f)
+ return JS_NULL;
+ return js_new_std_file(ctx, f, TRUE, FALSE);
+ fail:
+ JS_FreeCString(ctx, mode);
+ return JS_EXCEPTION;
+}
+
+static JSValue js_std_tmpfile(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ FILE *f;
+ f = tmpfile();
+ if (argc >= 1)
+ js_set_error_object(ctx, argv[0], f ? 0 : errno);
+ if (!f)
+ return JS_NULL;
+ return js_new_std_file(ctx, f, TRUE, FALSE);
+}
+
+static JSValue js_std_sprintf(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ return js_printf_internal(ctx, argc, argv, NULL);
+}
+
+static JSValue js_std_printf(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ return js_printf_internal(ctx, argc, argv, stdout);
+}
+
+static FILE *js_std_file_get(JSContext *ctx, JSValueConst obj)
+{
+ JSSTDFile *s = JS_GetOpaque2(ctx, obj, js_std_file_class_id);
+ if (!s)
+ return NULL;
+ if (!s->f) {
+ JS_ThrowTypeError(ctx, "invalid file handle");
+ return NULL;
+ }
+ return s->f;
+}
+
+static JSValue js_std_file_puts(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int magic)
+{
+ FILE *f;
+ int i;
+ const char *str;
+ size_t len;
+
+ if (magic == 0) {
+ f = stdout;
+ } else {
+ f = js_std_file_get(ctx, this_val);
+ if (!f)
+ return JS_EXCEPTION;
+ }
+
+ for(i = 0; i < argc; i++) {
+ str = JS_ToCStringLen(ctx, &len, argv[i]);
+ if (!str)
+ return JS_EXCEPTION;
+ fwrite(str, 1, len, f);
+ JS_FreeCString(ctx, str);
+ }
+ return JS_UNDEFINED;
+}
+
+static JSValue js_std_file_close(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSSTDFile *s = JS_GetOpaque2(ctx, this_val, js_std_file_class_id);
+ int err;
+ if (!s)
+ return JS_EXCEPTION;
+ if (!s->f)
+ return JS_ThrowTypeError(ctx, "invalid file handle");
+ if (s->is_popen)
+ err = js_get_errno(pclose(s->f));
+ else
+ err = js_get_errno(fclose(s->f));
+ s->f = NULL;
+ return JS_NewInt32(ctx, err);
+}
+
+static JSValue js_std_file_printf(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ FILE *f = js_std_file_get(ctx, this_val);
+ if (!f)
+ return JS_EXCEPTION;
+ return js_printf_internal(ctx, argc, argv, f);
+}
+
+static JSValue js_std_file_flush(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ FILE *f = js_std_file_get(ctx, this_val);
+ if (!f)
+ return JS_EXCEPTION;
+ fflush(f);
+ return JS_UNDEFINED;
+}
+
+static JSValue js_std_file_tell(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int is_bigint)
+{
+ FILE *f = js_std_file_get(ctx, this_val);
+ int64_t pos;
+ if (!f)
+ return JS_EXCEPTION;
+#if defined(__linux__)
+ pos = ftello(f);
+#else
+ pos = ftell(f);
+#endif
+ if (is_bigint)
+ return JS_NewBigInt64(ctx, pos);
+ else
+ return JS_NewInt64(ctx, pos);
+}
+
+static JSValue js_std_file_seek(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ FILE *f = js_std_file_get(ctx, this_val);
+ int64_t pos;
+ int whence, ret;
+ if (!f)
+ return JS_EXCEPTION;
+ if (JS_ToInt64Ext(ctx, &pos, argv[0]))
+ return JS_EXCEPTION;
+ if (JS_ToInt32(ctx, &whence, argv[1]))
+ return JS_EXCEPTION;
+#if defined(__linux__)
+ ret = fseeko(f, pos, whence);
+#else
+ ret = fseek(f, pos, whence);
+#endif
+ if (ret < 0)
+ ret = -errno;
+ return JS_NewInt32(ctx, ret);
+}
+
+static JSValue js_std_file_eof(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ FILE *f = js_std_file_get(ctx, this_val);
+ if (!f)
+ return JS_EXCEPTION;
+ return JS_NewBool(ctx, feof(f));
+}
+
+static JSValue js_std_file_error(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ FILE *f = js_std_file_get(ctx, this_val);
+ if (!f)
+ return JS_EXCEPTION;
+ return JS_NewBool(ctx, ferror(f));
+}
+
+static JSValue js_std_file_clearerr(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ FILE *f = js_std_file_get(ctx, this_val);
+ if (!f)
+ return JS_EXCEPTION;
+ clearerr(f);
+ return JS_UNDEFINED;
+}
+
+static JSValue js_std_file_fileno(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ FILE *f = js_std_file_get(ctx, this_val);
+ if (!f)
+ return JS_EXCEPTION;
+ return JS_NewInt32(ctx, fileno(f));
+}
+
+static JSValue js_std_file_read_write(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int magic)
+{
+ FILE *f = js_std_file_get(ctx, this_val);
+ uint64_t pos, len;
+ size_t size, ret;
+ uint8_t *buf;
+
+ if (!f)
+ return JS_EXCEPTION;
+ if (JS_ToIndex(ctx, &pos, argv[1]))
+ return JS_EXCEPTION;
+ if (JS_ToIndex(ctx, &len, argv[2]))
+ return JS_EXCEPTION;
+ buf = JS_GetArrayBuffer(ctx, &size, argv[0]);
+ if (!buf)
+ return JS_EXCEPTION;
+ if (pos + len > size)
+ return JS_ThrowRangeError(ctx, "read/write array buffer overflow");
+ if (magic)
+ ret = fwrite(buf + pos, 1, len, f);
+ else
+ ret = fread(buf + pos, 1, len, f);
+ return JS_NewInt64(ctx, ret);
+}
+
+/* XXX: could use less memory and go faster */
+static JSValue js_std_file_getline(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ FILE *f = js_std_file_get(ctx, this_val);
+ int c;
+ DynBuf dbuf;
+ JSValue obj;
+
+ if (!f)
+ return JS_EXCEPTION;
+
+ js_std_dbuf_init(ctx, &dbuf);
+ for(;;) {
+ c = fgetc(f);
+ if (c == EOF) {
+ if (dbuf.size == 0) {
+ /* EOF */
+ dbuf_free(&dbuf);
+ return JS_NULL;
+ } else {
+ break;
+ }
+ }
+ if (c == '\n')
+ break;
+ if (dbuf_putc(&dbuf, c)) {
+ dbuf_free(&dbuf);
+ return JS_ThrowOutOfMemory(ctx);
+ }
+ }
+ obj = JS_NewStringLen(ctx, (const char *)dbuf.buf, dbuf.size);
+ dbuf_free(&dbuf);
+ return obj;
+}
+
+/* XXX: could use less memory and go faster */
+static JSValue js_std_file_readAsString(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ FILE *f = js_std_file_get(ctx, this_val);
+ int c;
+ DynBuf dbuf;
+ JSValue obj;
+ uint64_t max_size64;
+ size_t max_size;
+ JSValueConst max_size_val;
+
+ if (!f)
+ return JS_EXCEPTION;
+
+ if (argc >= 1)
+ max_size_val = argv[0];
+ else
+ max_size_val = JS_UNDEFINED;
+ max_size = (size_t)-1;
+ if (!JS_IsUndefined(max_size_val)) {
+ if (JS_ToIndex(ctx, &max_size64, max_size_val))
+ return JS_EXCEPTION;
+ if (max_size64 < max_size)
+ max_size = max_size64;
+ }
+
+ js_std_dbuf_init(ctx, &dbuf);
+ while (max_size != 0) {
+ c = fgetc(f);
+ if (c == EOF)
+ break;
+ if (dbuf_putc(&dbuf, c)) {
+ dbuf_free(&dbuf);
+ return JS_EXCEPTION;
+ }
+ max_size--;
+ }
+ obj = JS_NewStringLen(ctx, (const char *)dbuf.buf, dbuf.size);
+ dbuf_free(&dbuf);
+ return obj;
+}
+
+static JSValue js_std_file_getByte(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ FILE *f = js_std_file_get(ctx, this_val);
+ if (!f)
+ return JS_EXCEPTION;
+ return JS_NewInt32(ctx, fgetc(f));
+}
+
+static JSValue js_std_file_putByte(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ FILE *f = js_std_file_get(ctx, this_val);
+ int c;
+ if (!f)
+ return JS_EXCEPTION;
+ if (JS_ToInt32(ctx, &c, argv[0]))
+ return JS_EXCEPTION;
+ c = fputc(c, f);
+ return JS_NewInt32(ctx, c);
+}
+
+/* urlGet */
+
+#define URL_GET_PROGRAM "curl -s -i --"
+#define URL_GET_BUF_SIZE 4096
+
+static int http_get_header_line(FILE *f, char *buf, size_t buf_size,
+ DynBuf *dbuf)
+{
+ int c;
+ char *p;
+
+ p = buf;
+ for(;;) {
+ c = fgetc(f);
+ if (c < 0)
+ return -1;
+ if ((p - buf) < buf_size - 1)
+ *p++ = c;
+ if (dbuf)
+ dbuf_putc(dbuf, c);
+ if (c == '\n')
+ break;
+ }
+ *p = '\0';
+ return 0;
+}
+
+static int http_get_status(const char *buf)
+{
+ const char *p = buf;
+ while (*p != ' ' && *p != '\0')
+ p++;
+ if (*p != ' ')
+ return 0;
+ while (*p == ' ')
+ p++;
+ return atoi(p);
+}
+
+static JSValue js_std_urlGet(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ const char *url;
+ DynBuf cmd_buf;
+ DynBuf data_buf_s, *data_buf = &data_buf_s;
+ DynBuf header_buf_s, *header_buf = &header_buf_s;
+ char *buf;
+ size_t i, len;
+ int status;
+ JSValue response = JS_UNDEFINED, ret_obj;
+ JSValueConst options_obj;
+ FILE *f;
+ BOOL binary_flag, full_flag;
+
+ url = JS_ToCString(ctx, argv[0]);
+ if (!url)
+ return JS_EXCEPTION;
+
+ binary_flag = FALSE;
+ full_flag = FALSE;
+
+ if (argc >= 2) {
+ options_obj = argv[1];
+
+ if (get_bool_option(ctx, &binary_flag, options_obj, "binary"))
+ goto fail_obj;
+
+ if (get_bool_option(ctx, &full_flag, options_obj, "full")) {
+ fail_obj:
+ JS_FreeCString(ctx, url);
+ return JS_EXCEPTION;
+ }
+ }
+
+ js_std_dbuf_init(ctx, &cmd_buf);
+ dbuf_printf(&cmd_buf, "%s '", URL_GET_PROGRAM);
+ for(i = 0; url[i] != '\0'; i++) {
+ unsigned char c = url[i];
+ switch (c) {
+ case '\'':
+ /* shell single quoted string does not support \' */
+ dbuf_putstr(&cmd_buf, "'\\''");
+ break;
+ case '[': case ']': case '{': case '}': case '\\':
+ /* prevent interpretation by curl as range or set specification */
+ dbuf_putc(&cmd_buf, '\\');
+ /* FALLTHROUGH */
+ default:
+ dbuf_putc(&cmd_buf, c);
+ break;
+ }
+ }
+ JS_FreeCString(ctx, url);
+ dbuf_putstr(&cmd_buf, "'");
+ dbuf_putc(&cmd_buf, '\0');
+ if (dbuf_error(&cmd_buf)) {
+ dbuf_free(&cmd_buf);
+ return JS_EXCEPTION;
+ }
+ // printf("%s\n", (char *)cmd_buf.buf);
+ f = popen((char *)cmd_buf.buf, "r");
+ dbuf_free(&cmd_buf);
+ if (!f) {
+ return JS_ThrowTypeError(ctx, "could not start curl");
+ }
+
+ js_std_dbuf_init(ctx, data_buf);
+ js_std_dbuf_init(ctx, header_buf);
+
+ buf = js_malloc(ctx, URL_GET_BUF_SIZE);
+ if (!buf)
+ goto fail;
+
+ /* get the HTTP status */
+ if (http_get_header_line(f, buf, URL_GET_BUF_SIZE, NULL) < 0) {
+ status = 0;
+ goto bad_header;
+ }
+ status = http_get_status(buf);
+ if (!full_flag && !(status >= 200 && status <= 299)) {
+ goto bad_header;
+ }
+
+ /* wait until there is an empty line */
+ for(;;) {
+ if (http_get_header_line(f, buf, URL_GET_BUF_SIZE, header_buf) < 0) {
+ bad_header:
+ response = JS_NULL;
+ goto done;
+ }
+ if (!strcmp(buf, "\r\n"))
+ break;
+ }
+ if (dbuf_error(header_buf))
+ goto fail;
+ header_buf->size -= 2; /* remove the trailing CRLF */
+
+ /* download the data */
+ for(;;) {
+ len = fread(buf, 1, URL_GET_BUF_SIZE, f);
+ if (len == 0)
+ break;
+ dbuf_put(data_buf, (uint8_t *)buf, len);
+ }
+ if (dbuf_error(data_buf))
+ goto fail;
+ if (binary_flag) {
+ response = JS_NewArrayBufferCopy(ctx,
+ data_buf->buf, data_buf->size);
+ } else {
+ response = JS_NewStringLen(ctx, (char *)data_buf->buf, data_buf->size);
+ }
+ if (JS_IsException(response))
+ goto fail;
+ done:
+ js_free(ctx, buf);
+ buf = NULL;
+ pclose(f);
+ f = NULL;
+ dbuf_free(data_buf);
+ data_buf = NULL;
+
+ if (full_flag) {
+ ret_obj = JS_NewObject(ctx);
+ if (JS_IsException(ret_obj))
+ goto fail;
+ JS_DefinePropertyValueStr(ctx, ret_obj, "response",
+ response,
+ JS_PROP_C_W_E);
+ if (!JS_IsNull(response)) {
+ JS_DefinePropertyValueStr(ctx, ret_obj, "responseHeaders",
+ JS_NewStringLen(ctx, (char *)header_buf->buf,
+ header_buf->size),
+ JS_PROP_C_W_E);
+ JS_DefinePropertyValueStr(ctx, ret_obj, "status",
+ JS_NewInt32(ctx, status),
+ JS_PROP_C_W_E);
+ }
+ } else {
+ ret_obj = response;
+ }
+ dbuf_free(header_buf);
+ return ret_obj;
+ fail:
+ if (f)
+ pclose(f);
+ js_free(ctx, buf);
+ if (data_buf)
+ dbuf_free(data_buf);
+ if (header_buf)
+ dbuf_free(header_buf);
+ JS_FreeValue(ctx, response);
+ return JS_EXCEPTION;
+}
+
+static JSClassDef js_std_file_class = {
+ "FILE",
+ .finalizer = js_std_file_finalizer,
+};
+
+static const JSCFunctionListEntry js_std_error_props[] = {
+ /* various errno values */
+#define DEF(x) JS_PROP_INT32_DEF(#x, x, JS_PROP_CONFIGURABLE )
+ DEF(EINVAL),
+ DEF(EIO),
+ DEF(EACCES),
+ DEF(EEXIST),
+ DEF(ENOSPC),
+ DEF(ENOSYS),
+ DEF(EBUSY),
+ DEF(ENOENT),
+ DEF(EPERM),
+ DEF(EPIPE),
+ DEF(EBADF),
+#undef DEF
+};
+
+static const JSCFunctionListEntry js_std_funcs[] = {
+ JS_CFUNC_DEF("exit", 1, js_std_exit ),
+ JS_CFUNC_DEF("gc", 0, js_std_gc ),
+ JS_CFUNC_DEF("evalScript", 1, js_evalScript ),
+ JS_CFUNC_DEF("loadScript", 1, js_loadScript ),
+ JS_CFUNC_DEF("getenv", 1, js_std_getenv ),
+ JS_CFUNC_DEF("setenv", 1, js_std_setenv ),
+ JS_CFUNC_DEF("unsetenv", 1, js_std_unsetenv ),
+ JS_CFUNC_DEF("getenviron", 1, js_std_getenviron ),
+ JS_CFUNC_DEF("urlGet", 1, js_std_urlGet ),
+ JS_CFUNC_DEF("loadFile", 1, js_std_loadFile ),
+ JS_CFUNC_DEF("strerror", 1, js_std_strerror ),
+ JS_CFUNC_DEF("parseExtJSON", 1, js_std_parseExtJSON ),
+
+ /* FILE I/O */
+ JS_CFUNC_DEF("open", 2, js_std_open ),
+ JS_CFUNC_DEF("popen", 2, js_std_popen ),
+ JS_CFUNC_DEF("fdopen", 2, js_std_fdopen ),
+ JS_CFUNC_DEF("tmpfile", 0, js_std_tmpfile ),
+ JS_CFUNC_MAGIC_DEF("puts", 1, js_std_file_puts, 0 ),
+ JS_CFUNC_DEF("printf", 1, js_std_printf ),
+ JS_CFUNC_DEF("sprintf", 1, js_std_sprintf ),
+ JS_PROP_INT32_DEF("SEEK_SET", SEEK_SET, JS_PROP_CONFIGURABLE ),
+ JS_PROP_INT32_DEF("SEEK_CUR", SEEK_CUR, JS_PROP_CONFIGURABLE ),
+ JS_PROP_INT32_DEF("SEEK_END", SEEK_END, JS_PROP_CONFIGURABLE ),
+ JS_OBJECT_DEF("Error", js_std_error_props, countof(js_std_error_props), JS_PROP_CONFIGURABLE),
+};
+
+static const JSCFunctionListEntry js_std_file_proto_funcs[] = {
+ JS_CFUNC_DEF("close", 0, js_std_file_close ),
+ JS_CFUNC_MAGIC_DEF("puts", 1, js_std_file_puts, 1 ),
+ JS_CFUNC_DEF("printf", 1, js_std_file_printf ),
+ JS_CFUNC_DEF("flush", 0, js_std_file_flush ),
+ JS_CFUNC_MAGIC_DEF("tell", 0, js_std_file_tell, 0 ),
+ JS_CFUNC_MAGIC_DEF("tello", 0, js_std_file_tell, 1 ),
+ JS_CFUNC_DEF("seek", 2, js_std_file_seek ),
+ JS_CFUNC_DEF("eof", 0, js_std_file_eof ),
+ JS_CFUNC_DEF("fileno", 0, js_std_file_fileno ),
+ JS_CFUNC_DEF("error", 0, js_std_file_error ),
+ JS_CFUNC_DEF("clearerr", 0, js_std_file_clearerr ),
+ JS_CFUNC_MAGIC_DEF("read", 3, js_std_file_read_write, 0 ),
+ JS_CFUNC_MAGIC_DEF("write", 3, js_std_file_read_write, 1 ),
+ JS_CFUNC_DEF("getline", 0, js_std_file_getline ),
+ JS_CFUNC_DEF("readAsString", 0, js_std_file_readAsString ),
+ JS_CFUNC_DEF("getByte", 0, js_std_file_getByte ),
+ JS_CFUNC_DEF("putByte", 1, js_std_file_putByte ),
+ /* setvbuf, ... */
+};
+
+static int js_std_init(JSContext *ctx, JSModuleDef *m)
+{
+ JSValue proto;
+
+ /* FILE class */
+ /* the class ID is created once */
+ JS_NewClassID(&js_std_file_class_id);
+ /* the class is created once per runtime */
+ JS_NewClass(JS_GetRuntime(ctx), js_std_file_class_id, &js_std_file_class);
+ proto = JS_NewObject(ctx);
+ JS_SetPropertyFunctionList(ctx, proto, js_std_file_proto_funcs,
+ countof(js_std_file_proto_funcs));
+ JS_SetClassProto(ctx, js_std_file_class_id, proto);
+
+ JS_SetModuleExportList(ctx, m, js_std_funcs,
+ countof(js_std_funcs));
+ JS_SetModuleExport(ctx, m, "in", js_new_std_file(ctx, stdin, FALSE, FALSE));
+ JS_SetModuleExport(ctx, m, "out", js_new_std_file(ctx, stdout, FALSE, FALSE));
+ JS_SetModuleExport(ctx, m, "err", js_new_std_file(ctx, stderr, FALSE, FALSE));
+ return 0;
+}
+
+JSModuleDef *js_init_module_std(JSContext *ctx, const char *module_name)
+{
+ JSModuleDef *m;
+ m = JS_NewCModule(ctx, module_name, js_std_init);
+ if (!m)
+ return NULL;
+ JS_AddModuleExportList(ctx, m, js_std_funcs, countof(js_std_funcs));
+ JS_AddModuleExport(ctx, m, "in");
+ JS_AddModuleExport(ctx, m, "out");
+ JS_AddModuleExport(ctx, m, "err");
+ return m;
+}
+
+/**********************************************************/
+/* 'os' object */
+
+static JSValue js_os_open(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ const char *filename;
+ int flags, mode, ret;
+
+ filename = JS_ToCString(ctx, argv[0]);
+ if (!filename)
+ return JS_EXCEPTION;
+ if (JS_ToInt32(ctx, &flags, argv[1]))
+ goto fail;
+ if (argc >= 3 && !JS_IsUndefined(argv[2])) {
+ if (JS_ToInt32(ctx, &mode, argv[2])) {
+ fail:
+ JS_FreeCString(ctx, filename);
+ return JS_EXCEPTION;
+ }
+ } else {
+ mode = 0666;
+ }
+#if defined(_WIN32)
+ /* force binary mode by default */
+ if (!(flags & O_TEXT))
+ flags |= O_BINARY;
+#endif
+ ret = js_get_errno(open(filename, flags, mode));
+ JS_FreeCString(ctx, filename);
+ return JS_NewInt32(ctx, ret);
+}
+
+static JSValue js_os_close(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ int fd, ret;
+ if (JS_ToInt32(ctx, &fd, argv[0]))
+ return JS_EXCEPTION;
+ ret = js_get_errno(close(fd));
+ return JS_NewInt32(ctx, ret);
+}
+
+static JSValue js_os_seek(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ int fd, whence;
+ int64_t pos, ret;
+ BOOL is_bigint;
+
+ if (JS_ToInt32(ctx, &fd, argv[0]))
+ return JS_EXCEPTION;
+ is_bigint = JS_IsBigInt(ctx, argv[1]);
+ if (JS_ToInt64Ext(ctx, &pos, argv[1]))
+ return JS_EXCEPTION;
+ if (JS_ToInt32(ctx, &whence, argv[2]))
+ return JS_EXCEPTION;
+ ret = lseek(fd, pos, whence);
+ if (ret == -1)
+ ret = -errno;
+ if (is_bigint)
+ return JS_NewBigInt64(ctx, ret);
+ else
+ return JS_NewInt64(ctx, ret);
+}
+
+static JSValue js_os_read_write(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int magic)
+{
+ int fd;
+ uint64_t pos, len;
+ size_t size;
+ ssize_t ret;
+ uint8_t *buf;
+
+ if (JS_ToInt32(ctx, &fd, argv[0]))
+ return JS_EXCEPTION;
+ if (JS_ToIndex(ctx, &pos, argv[2]))
+ return JS_EXCEPTION;
+ if (JS_ToIndex(ctx, &len, argv[3]))
+ return JS_EXCEPTION;
+ buf = JS_GetArrayBuffer(ctx, &size, argv[1]);
+ if (!buf)
+ return JS_EXCEPTION;
+ if (pos + len > size)
+ return JS_ThrowRangeError(ctx, "read/write array buffer overflow");
+ if (magic)
+ ret = js_get_errno(write(fd, buf + pos, len));
+ else
+ ret = js_get_errno(read(fd, buf + pos, len));
+ return JS_NewInt64(ctx, ret);
+}
+
+static JSValue js_os_isatty(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ int fd;
+ if (JS_ToInt32(ctx, &fd, argv[0]))
+ return JS_EXCEPTION;
+ return JS_NewBool(ctx, isatty(fd));
+}
+
+#if defined(_WIN32)
+static JSValue js_os_ttyGetWinSize(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ int fd;
+ HANDLE handle;
+ CONSOLE_SCREEN_BUFFER_INFO info;
+ JSValue obj;
+
+ if (JS_ToInt32(ctx, &fd, argv[0]))
+ return JS_EXCEPTION;
+ handle = (HANDLE)_get_osfhandle(fd);
+
+ if (!GetConsoleScreenBufferInfo(handle, &info))
+ return JS_NULL;
+ obj = JS_NewArray(ctx);
+ if (JS_IsException(obj))
+ return obj;
+ JS_DefinePropertyValueUint32(ctx, obj, 0, JS_NewInt32(ctx, info.dwSize.X), JS_PROP_C_W_E);
+ JS_DefinePropertyValueUint32(ctx, obj, 1, JS_NewInt32(ctx, info.dwSize.Y), JS_PROP_C_W_E);
+ return obj;
+}
+
+/* Windows 10 built-in VT100 emulation */
+#define __ENABLE_VIRTUAL_TERMINAL_PROCESSING 0x0004
+#define __ENABLE_VIRTUAL_TERMINAL_INPUT 0x0200
+
+static JSValue js_os_ttySetRaw(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ int fd;
+ HANDLE handle;
+
+ if (JS_ToInt32(ctx, &fd, argv[0]))
+ return JS_EXCEPTION;
+ handle = (HANDLE)_get_osfhandle(fd);
+ SetConsoleMode(handle, ENABLE_WINDOW_INPUT | __ENABLE_VIRTUAL_TERMINAL_INPUT);
+ _setmode(fd, _O_BINARY);
+ if (fd == 0) {
+ handle = (HANDLE)_get_osfhandle(1); /* corresponding output */
+ SetConsoleMode(handle, ENABLE_PROCESSED_OUTPUT | ENABLE_WRAP_AT_EOL_OUTPUT | __ENABLE_VIRTUAL_TERMINAL_PROCESSING);
+ }
+ return JS_UNDEFINED;
+}
+#else
+static JSValue js_os_ttyGetWinSize(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ int fd;
+ struct winsize ws;
+ JSValue obj;
+
+ if (JS_ToInt32(ctx, &fd, argv[0]))
+ return JS_EXCEPTION;
+ if (ioctl(fd, TIOCGWINSZ, &ws) == 0 &&
+ ws.ws_col >= 4 && ws.ws_row >= 4) {
+ obj = JS_NewArray(ctx);
+ if (JS_IsException(obj))
+ return obj;
+ JS_DefinePropertyValueUint32(ctx, obj, 0, JS_NewInt32(ctx, ws.ws_col), JS_PROP_C_W_E);
+ JS_DefinePropertyValueUint32(ctx, obj, 1, JS_NewInt32(ctx, ws.ws_row), JS_PROP_C_W_E);
+ return obj;
+ } else {
+ return JS_NULL;
+ }
+}
+
+static struct termios oldtty;
+
+static void term_exit(void)
+{
+ tcsetattr(0, TCSANOW, &oldtty);
+}
+
+/* XXX: should add a way to go back to normal mode */
+static JSValue js_os_ttySetRaw(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ struct termios tty;
+ int fd;
+
+ if (JS_ToInt32(ctx, &fd, argv[0]))
+ return JS_EXCEPTION;
+
+ memset(&tty, 0, sizeof(tty));
+ tcgetattr(fd, &tty);
+ oldtty = tty;
+
+ tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
+ |INLCR|IGNCR|ICRNL|IXON);
+ tty.c_oflag |= OPOST;
+ tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
+ tty.c_cflag &= ~(CSIZE|PARENB);
+ tty.c_cflag |= CS8;
+ tty.c_cc[VMIN] = 1;
+ tty.c_cc[VTIME] = 0;
+
+ tcsetattr(fd, TCSANOW, &tty);
+
+ atexit(term_exit);
+ return JS_UNDEFINED;
+}
+
+#endif /* !_WIN32 */
+
+static JSValue js_os_remove(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ const char *filename;
+ int ret;
+
+ filename = JS_ToCString(ctx, argv[0]);
+ if (!filename)
+ return JS_EXCEPTION;
+#if defined(_WIN32)
+ {
+ struct stat st;
+ if (stat(filename, &st) == 0 && S_ISDIR(st.st_mode)) {
+ ret = rmdir(filename);
+ } else {
+ ret = unlink(filename);
+ }
+ }
+#else
+ ret = remove(filename);
+#endif
+ ret = js_get_errno(ret);
+ JS_FreeCString(ctx, filename);
+ return JS_NewInt32(ctx, ret);
+}
+
+static JSValue js_os_rename(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ const char *oldpath, *newpath;
+ int ret;
+
+ oldpath = JS_ToCString(ctx, argv[0]);
+ if (!oldpath)
+ return JS_EXCEPTION;
+ newpath = JS_ToCString(ctx, argv[1]);
+ if (!newpath) {
+ JS_FreeCString(ctx, oldpath);
+ return JS_EXCEPTION;
+ }
+ ret = js_get_errno(rename(oldpath, newpath));
+ JS_FreeCString(ctx, oldpath);
+ JS_FreeCString(ctx, newpath);
+ return JS_NewInt32(ctx, ret);
+}
+
+static BOOL is_main_thread(JSRuntime *rt)
+{
+ JSThreadState *ts = JS_GetRuntimeOpaque(rt);
+ return !ts->recv_pipe;
+}
+
+static JSOSRWHandler *find_rh(JSThreadState *ts, int fd)
+{
+ JSOSRWHandler *rh;
+ struct list_head *el;
+
+ list_for_each(el, &ts->os_rw_handlers) {
+ rh = list_entry(el, JSOSRWHandler, link);
+ if (rh->fd == fd)
+ return rh;
+ }
+ return NULL;
+}
+
+static void free_rw_handler(JSRuntime *rt, JSOSRWHandler *rh)
+{
+ int i;
+ list_del(&rh->link);
+ for(i = 0; i < 2; i++) {
+ JS_FreeValueRT(rt, rh->rw_func[i]);
+ }
+ js_free_rt(rt, rh);
+}
+
+static JSValue js_os_setReadHandler(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int magic)
+{
+ JSRuntime *rt = JS_GetRuntime(ctx);
+ JSThreadState *ts = JS_GetRuntimeOpaque(rt);
+ JSOSRWHandler *rh;
+ int fd;
+ JSValueConst func;
+
+ if (JS_ToInt32(ctx, &fd, argv[0]))
+ return JS_EXCEPTION;
+ func = argv[1];
+ if (JS_IsNull(func)) {
+ rh = find_rh(ts, fd);
+ if (rh) {
+ JS_FreeValue(ctx, rh->rw_func[magic]);
+ rh->rw_func[magic] = JS_NULL;
+ if (JS_IsNull(rh->rw_func[0]) &&
+ JS_IsNull(rh->rw_func[1])) {
+ /* remove the entry */
+ free_rw_handler(JS_GetRuntime(ctx), rh);
+ }
+ }
+ } else {
+ if (!JS_IsFunction(ctx, func))
+ return JS_ThrowTypeError(ctx, "not a function");
+ rh = find_rh(ts, fd);
+ if (!rh) {
+ rh = js_mallocz(ctx, sizeof(*rh));
+ if (!rh)
+ return JS_EXCEPTION;
+ rh->fd = fd;
+ rh->rw_func[0] = JS_NULL;
+ rh->rw_func[1] = JS_NULL;
+ list_add_tail(&rh->link, &ts->os_rw_handlers);
+ }
+ JS_FreeValue(ctx, rh->rw_func[magic]);
+ rh->rw_func[magic] = JS_DupValue(ctx, func);
+ }
+ return JS_UNDEFINED;
+}
+
+static JSOSSignalHandler *find_sh(JSThreadState *ts, int sig_num)
+{
+ JSOSSignalHandler *sh;
+ struct list_head *el;
+ list_for_each(el, &ts->os_signal_handlers) {
+ sh = list_entry(el, JSOSSignalHandler, link);
+ if (sh->sig_num == sig_num)
+ return sh;
+ }
+ return NULL;
+}
+
+static void free_sh(JSRuntime *rt, JSOSSignalHandler *sh)
+{
+ list_del(&sh->link);
+ JS_FreeValueRT(rt, sh->func);
+ js_free_rt(rt, sh);
+}
+
+static void os_signal_handler(int sig_num)
+{
+ os_pending_signals |= ((uint64_t)1 << sig_num);
+}
+
+#if defined(_WIN32)
+typedef void (*sighandler_t)(int sig_num);
+#endif
+
+static JSValue js_os_signal(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSRuntime *rt = JS_GetRuntime(ctx);
+ JSThreadState *ts = JS_GetRuntimeOpaque(rt);
+ JSOSSignalHandler *sh;
+ uint32_t sig_num;
+ JSValueConst func;
+ sighandler_t handler;
+
+ if (!is_main_thread(rt))
+ return JS_ThrowTypeError(ctx, "signal handler can only be set in the main thread");
+
+ if (JS_ToUint32(ctx, &sig_num, argv[0]))
+ return JS_EXCEPTION;
+ if (sig_num >= 64)
+ return JS_ThrowRangeError(ctx, "invalid signal number");
+ func = argv[1];
+ /* func = null: SIG_DFL, func = undefined, SIG_IGN */
+ if (JS_IsNull(func) || JS_IsUndefined(func)) {
+ sh = find_sh(ts, sig_num);
+ if (sh) {
+ free_sh(JS_GetRuntime(ctx), sh);
+ }
+ if (JS_IsNull(func))
+ handler = SIG_DFL;
+ else
+ handler = SIG_IGN;
+ signal(sig_num, handler);
+ } else {
+ if (!JS_IsFunction(ctx, func))
+ return JS_ThrowTypeError(ctx, "not a function");
+ sh = find_sh(ts, sig_num);
+ if (!sh) {
+ sh = js_mallocz(ctx, sizeof(*sh));
+ if (!sh)
+ return JS_EXCEPTION;
+ sh->sig_num = sig_num;
+ list_add_tail(&sh->link, &ts->os_signal_handlers);
+ }
+ JS_FreeValue(ctx, sh->func);
+ sh->func = JS_DupValue(ctx, func);
+ signal(sig_num, os_signal_handler);
+ }
+ return JS_UNDEFINED;
+}
+
+#if defined(__linux__) || defined(__APPLE__)
+static int64_t get_time_ms(void)
+{
+ struct timespec ts;
+ clock_gettime(CLOCK_MONOTONIC, &ts);
+ return (uint64_t)ts.tv_sec * 1000 + (ts.tv_nsec / 1000000);
+}
+
+static int64_t get_time_ns(void)
+{
+ struct timespec ts;
+ clock_gettime(CLOCK_MONOTONIC, &ts);
+ return (uint64_t)ts.tv_sec * 1000000000 + ts.tv_nsec;
+}
+#else
+/* more portable, but does not work if the date is updated */
+static int64_t get_time_ms(void)
+{
+ struct timeval tv;
+ gettimeofday(&tv, NULL);
+ return (int64_t)tv.tv_sec * 1000 + (tv.tv_usec / 1000);
+}
+
+static int64_t get_time_ns(void)
+{
+ struct timeval tv;
+ gettimeofday(&tv, NULL);
+ return (int64_t)tv.tv_sec * 1000000000 + (tv.tv_usec * 1000);
+}
+#endif
+
+static JSValue js_os_now(JSContext *ctx, JSValue this_val,
+ int argc, JSValue *argv)
+{
+ return JS_NewFloat64(ctx, (double)get_time_ns() / 1e6);
+}
+
+static void free_timer(JSRuntime *rt, JSOSTimer *th)
+{
+ list_del(&th->link);
+ JS_FreeValueRT(rt, th->func);
+ js_free_rt(rt, th);
+}
+
+static JSValue js_os_setTimeout(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSRuntime *rt = JS_GetRuntime(ctx);
+ JSThreadState *ts = JS_GetRuntimeOpaque(rt);
+ int64_t delay;
+ JSValueConst func;
+ JSOSTimer *th;
+
+ func = argv[0];
+ if (!JS_IsFunction(ctx, func))
+ return JS_ThrowTypeError(ctx, "not a function");
+ if (JS_ToInt64(ctx, &delay, argv[1]))
+ return JS_EXCEPTION;
+ th = js_mallocz(ctx, sizeof(*th));
+ if (!th)
+ return JS_EXCEPTION;
+ th->timer_id = ts->next_timer_id;
+ if (ts->next_timer_id == INT32_MAX)
+ ts->next_timer_id = 1;
+ else
+ ts->next_timer_id++;
+ th->timeout = get_time_ms() + delay;
+ th->func = JS_DupValue(ctx, func);
+ list_add_tail(&th->link, &ts->os_timers);
+ return JS_NewInt32(ctx, th->timer_id);
+}
+
+static JSOSTimer *find_timer_by_id(JSThreadState *ts, int timer_id)
+{
+ struct list_head *el;
+ if (timer_id <= 0)
+ return NULL;
+ list_for_each(el, &ts->os_timers) {
+ JSOSTimer *th = list_entry(el, JSOSTimer, link);
+ if (th->timer_id == timer_id)
+ return th;
+ }
+ return NULL;
+}
+
+static JSValue js_os_clearTimeout(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSRuntime *rt = JS_GetRuntime(ctx);
+ JSThreadState *ts = JS_GetRuntimeOpaque(rt);
+ JSOSTimer *th;
+ int timer_id;
+
+ if (JS_ToInt32(ctx, &timer_id, argv[0]))
+ return JS_EXCEPTION;
+ th = find_timer_by_id(ts, timer_id);
+ if (!th)
+ return JS_UNDEFINED;
+ free_timer(rt, th);
+ return JS_UNDEFINED;
+}
+
+/* return a promise */
+static JSValue js_os_sleepAsync(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSRuntime *rt = JS_GetRuntime(ctx);
+ JSThreadState *ts = JS_GetRuntimeOpaque(rt);
+ int64_t delay;
+ JSOSTimer *th;
+ JSValue promise, resolving_funcs[2];
+
+ if (JS_ToInt64(ctx, &delay, argv[0]))
+ return JS_EXCEPTION;
+ promise = JS_NewPromiseCapability(ctx, resolving_funcs);
+ if (JS_IsException(promise))
+ return JS_EXCEPTION;
+
+ th = js_mallocz(ctx, sizeof(*th));
+ if (!th) {
+ JS_FreeValue(ctx, promise);
+ JS_FreeValue(ctx, resolving_funcs[0]);
+ JS_FreeValue(ctx, resolving_funcs[1]);
+ return JS_EXCEPTION;
+ }
+ th->timer_id = -1;
+ th->timeout = get_time_ms() + delay;
+ th->func = JS_DupValue(ctx, resolving_funcs[0]);
+ list_add_tail(&th->link, &ts->os_timers);
+ JS_FreeValue(ctx, resolving_funcs[0]);
+ JS_FreeValue(ctx, resolving_funcs[1]);
+ return promise;
+}
+
+static void call_handler(JSContext *ctx, JSValueConst func)
+{
+ JSValue ret, func1;
+ /* 'func' might be destroyed when calling itself (if it frees the
+ handler), so must take extra care */
+ func1 = JS_DupValue(ctx, func);
+ ret = JS_Call(ctx, func1, JS_UNDEFINED, 0, NULL);
+ JS_FreeValue(ctx, func1);
+ if (JS_IsException(ret))
+ js_std_dump_error(ctx);
+ JS_FreeValue(ctx, ret);
+}
+
+#if defined(_WIN32)
+
+static int js_os_poll(JSContext *ctx)
+{
+ JSRuntime *rt = JS_GetRuntime(ctx);
+ JSThreadState *ts = JS_GetRuntimeOpaque(rt);
+ int min_delay, console_fd;
+ int64_t cur_time, delay;
+ JSOSRWHandler *rh;
+ struct list_head *el;
+
+ /* XXX: handle signals if useful */
+
+ if (list_empty(&ts->os_rw_handlers) && list_empty(&ts->os_timers))
+ return -1; /* no more events */
+
+ /* XXX: only timers and basic console input are supported */
+ if (!list_empty(&ts->os_timers)) {
+ cur_time = get_time_ms();
+ min_delay = 10000;
+ list_for_each(el, &ts->os_timers) {
+ JSOSTimer *th = list_entry(el, JSOSTimer, link);
+ delay = th->timeout - cur_time;
+ if (delay <= 0) {
+ JSValue func;
+ /* the timer expired */
+ func = th->func;
+ th->func = JS_UNDEFINED;
+ free_timer(rt, th);
+ call_handler(ctx, func);
+ JS_FreeValue(ctx, func);
+ return 0;
+ } else if (delay < min_delay) {
+ min_delay = delay;
+ }
+ }
+ } else {
+ min_delay = -1;
+ }
+
+ console_fd = -1;
+ list_for_each(el, &ts->os_rw_handlers) {
+ rh = list_entry(el, JSOSRWHandler, link);
+ if (rh->fd == 0 && !JS_IsNull(rh->rw_func[0])) {
+ console_fd = rh->fd;
+ break;
+ }
+ }
+
+ if (console_fd >= 0) {
+ DWORD ti, ret;
+ HANDLE handle;
+ if (min_delay == -1)
+ ti = INFINITE;
+ else
+ ti = min_delay;
+ handle = (HANDLE)_get_osfhandle(console_fd);
+ ret = WaitForSingleObject(handle, ti);
+ if (ret == WAIT_OBJECT_0) {
+ list_for_each(el, &ts->os_rw_handlers) {
+ rh = list_entry(el, JSOSRWHandler, link);
+ if (rh->fd == console_fd && !JS_IsNull(rh->rw_func[0])) {
+ call_handler(ctx, rh->rw_func[0]);
+ /* must stop because the list may have been modified */
+ break;
+ }
+ }
+ }
+ } else {
+ Sleep(min_delay);
+ }
+ return 0;
+}
+#else
+
+#ifdef USE_WORKER
+
+static void js_free_message(JSWorkerMessage *msg);
+
+/* return 1 if a message was handled, 0 if no message */
+static int handle_posted_message(JSRuntime *rt, JSContext *ctx,
+ JSWorkerMessageHandler *port)
+{
+ JSWorkerMessagePipe *ps = port->recv_pipe;
+ int ret;
+ struct list_head *el;
+ JSWorkerMessage *msg;
+ JSValue obj, data_obj, func, retval;
+
+ pthread_mutex_lock(&ps->mutex);
+ if (!list_empty(&ps->msg_queue)) {
+ el = ps->msg_queue.next;
+ msg = list_entry(el, JSWorkerMessage, link);
+
+ /* remove the message from the queue */
+ list_del(&msg->link);
+
+ if (list_empty(&ps->msg_queue)) {
+ uint8_t buf[16];
+ int ret;
+ for(;;) {
+ ret = read(ps->read_fd, buf, sizeof(buf));
+ if (ret >= 0)
+ break;
+ if (errno != EAGAIN && errno != EINTR)
+ break;
+ }
+ }
+
+ pthread_mutex_unlock(&ps->mutex);
+
+ data_obj = JS_ReadObject(ctx, msg->data, msg->data_len,
+ JS_READ_OBJ_SAB | JS_READ_OBJ_REFERENCE);
+
+ js_free_message(msg);
+
+ if (JS_IsException(data_obj))
+ goto fail;
+ obj = JS_NewObject(ctx);
+ if (JS_IsException(obj)) {
+ JS_FreeValue(ctx, data_obj);
+ goto fail;
+ }
+ JS_DefinePropertyValueStr(ctx, obj, "data", data_obj, JS_PROP_C_W_E);
+
+ /* 'func' might be destroyed when calling itself (if it frees the
+ handler), so must take extra care */
+ func = JS_DupValue(ctx, port->on_message_func);
+ retval = JS_Call(ctx, func, JS_UNDEFINED, 1, (JSValueConst *)&obj);
+ JS_FreeValue(ctx, obj);
+ JS_FreeValue(ctx, func);
+ if (JS_IsException(retval)) {
+ fail:
+ js_std_dump_error(ctx);
+ } else {
+ JS_FreeValue(ctx, retval);
+ }
+ ret = 1;
+ } else {
+ pthread_mutex_unlock(&ps->mutex);
+ ret = 0;
+ }
+ return ret;
+}
+#else
+static int handle_posted_message(JSRuntime *rt, JSContext *ctx,
+ JSWorkerMessageHandler *port)
+{
+ return 0;
+}
+#endif
+
+static int js_os_poll(JSContext *ctx)
+{
+ JSRuntime *rt = JS_GetRuntime(ctx);
+ JSThreadState *ts = JS_GetRuntimeOpaque(rt);
+ int ret, fd_max, min_delay;
+ int64_t cur_time, delay;
+ fd_set rfds, wfds;
+ JSOSRWHandler *rh;
+ struct list_head *el;
+ struct timeval tv, *tvp;
+
+ /* only check signals in the main thread */
+ if (!ts->recv_pipe &&
+ unlikely(os_pending_signals != 0)) {
+ JSOSSignalHandler *sh;
+ uint64_t mask;
+
+ list_for_each(el, &ts->os_signal_handlers) {
+ sh = list_entry(el, JSOSSignalHandler, link);
+ mask = (uint64_t)1 << sh->sig_num;
+ if (os_pending_signals & mask) {
+ os_pending_signals &= ~mask;
+ call_handler(ctx, sh->func);
+ return 0;
+ }
+ }
+ }
+
+ if (list_empty(&ts->os_rw_handlers) && list_empty(&ts->os_timers) &&
+ list_empty(&ts->port_list))
+ return -1; /* no more events */
+
+ if (!list_empty(&ts->os_timers)) {
+ cur_time = get_time_ms();
+ min_delay = 10000;
+ list_for_each(el, &ts->os_timers) {
+ JSOSTimer *th = list_entry(el, JSOSTimer, link);
+ delay = th->timeout - cur_time;
+ if (delay <= 0) {
+ JSValue func;
+ /* the timer expired */
+ func = th->func;
+ th->func = JS_UNDEFINED;
+ free_timer(rt, th);
+ call_handler(ctx, func);
+ JS_FreeValue(ctx, func);
+ return 0;
+ } else if (delay < min_delay) {
+ min_delay = delay;
+ }
+ }
+ tv.tv_sec = min_delay / 1000;
+ tv.tv_usec = (min_delay % 1000) * 1000;
+ tvp = &tv;
+ } else {
+ tvp = NULL;
+ }
+
+ FD_ZERO(&rfds);
+ FD_ZERO(&wfds);
+ fd_max = -1;
+ list_for_each(el, &ts->os_rw_handlers) {
+ rh = list_entry(el, JSOSRWHandler, link);
+ fd_max = max_int(fd_max, rh->fd);
+ if (!JS_IsNull(rh->rw_func[0]))
+ FD_SET(rh->fd, &rfds);
+ if (!JS_IsNull(rh->rw_func[1]))
+ FD_SET(rh->fd, &wfds);
+ }
+
+ list_for_each(el, &ts->port_list) {
+ JSWorkerMessageHandler *port = list_entry(el, JSWorkerMessageHandler, link);
+ if (!JS_IsNull(port->on_message_func)) {
+ JSWorkerMessagePipe *ps = port->recv_pipe;
+ fd_max = max_int(fd_max, ps->read_fd);
+ FD_SET(ps->read_fd, &rfds);
+ }
+ }
+
+ ret = select(fd_max + 1, &rfds, &wfds, NULL, tvp);
+ if (ret > 0) {
+ list_for_each(el, &ts->os_rw_handlers) {
+ rh = list_entry(el, JSOSRWHandler, link);
+ if (!JS_IsNull(rh->rw_func[0]) &&
+ FD_ISSET(rh->fd, &rfds)) {
+ call_handler(ctx, rh->rw_func[0]);
+ /* must stop because the list may have been modified */
+ goto done;
+ }
+ if (!JS_IsNull(rh->rw_func[1]) &&
+ FD_ISSET(rh->fd, &wfds)) {
+ call_handler(ctx, rh->rw_func[1]);
+ /* must stop because the list may have been modified */
+ goto done;
+ }
+ }
+
+ list_for_each(el, &ts->port_list) {
+ JSWorkerMessageHandler *port = list_entry(el, JSWorkerMessageHandler, link);
+ if (!JS_IsNull(port->on_message_func)) {
+ JSWorkerMessagePipe *ps = port->recv_pipe;
+ if (FD_ISSET(ps->read_fd, &rfds)) {
+ if (handle_posted_message(rt, ctx, port))
+ goto done;
+ }
+ }
+ }
+ }
+ done:
+ return 0;
+}
+#endif /* !_WIN32 */
+
+static JSValue make_obj_error(JSContext *ctx,
+ JSValue obj,
+ int err)
+{
+ JSValue arr;
+ if (JS_IsException(obj))
+ return obj;
+ arr = JS_NewArray(ctx);
+ if (JS_IsException(arr))
+ return JS_EXCEPTION;
+ JS_DefinePropertyValueUint32(ctx, arr, 0, obj,
+ JS_PROP_C_W_E);
+ JS_DefinePropertyValueUint32(ctx, arr, 1, JS_NewInt32(ctx, err),
+ JS_PROP_C_W_E);
+ return arr;
+}
+
+static JSValue make_string_error(JSContext *ctx,
+ const char *buf,
+ int err)
+{
+ return make_obj_error(ctx, JS_NewString(ctx, buf), err);
+}
+
+/* return [cwd, errorcode] */
+static JSValue js_os_getcwd(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ char buf[PATH_MAX];
+ int err;
+
+ if (!getcwd(buf, sizeof(buf))) {
+ buf[0] = '\0';
+ err = errno;
+ } else {
+ err = 0;
+ }
+ return make_string_error(ctx, buf, err);
+}
+
+static JSValue js_os_chdir(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ const char *target;
+ int err;
+
+ target = JS_ToCString(ctx, argv[0]);
+ if (!target)
+ return JS_EXCEPTION;
+ err = js_get_errno(chdir(target));
+ JS_FreeCString(ctx, target);
+ return JS_NewInt32(ctx, err);
+}
+
+static JSValue js_os_mkdir(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ int mode, ret;
+ const char *path;
+
+ if (argc >= 2) {
+ if (JS_ToInt32(ctx, &mode, argv[1]))
+ return JS_EXCEPTION;
+ } else {
+ mode = 0777;
+ }
+ path = JS_ToCString(ctx, argv[0]);
+ if (!path)
+ return JS_EXCEPTION;
+#if defined(_WIN32)
+ (void)mode;
+ ret = js_get_errno(mkdir(path));
+#else
+ ret = js_get_errno(mkdir(path, mode));
+#endif
+ JS_FreeCString(ctx, path);
+ return JS_NewInt32(ctx, ret);
+}
+
+/* return [array, errorcode] */
+static JSValue js_os_readdir(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ const char *path;
+ DIR *f;
+ struct dirent *d;
+ JSValue obj;
+ int err;
+ uint32_t len;
+
+ path = JS_ToCString(ctx, argv[0]);
+ if (!path)
+ return JS_EXCEPTION;
+ obj = JS_NewArray(ctx);
+ if (JS_IsException(obj)) {
+ JS_FreeCString(ctx, path);
+ return JS_EXCEPTION;
+ }
+ f = opendir(path);
+ if (!f)
+ err = errno;
+ else
+ err = 0;
+ JS_FreeCString(ctx, path);
+ if (!f)
+ goto done;
+ len = 0;
+ for(;;) {
+ errno = 0;
+ d = readdir(f);
+ if (!d) {
+ err = errno;
+ break;
+ }
+ JS_DefinePropertyValueUint32(ctx, obj, len++,
+ JS_NewString(ctx, d->d_name),
+ JS_PROP_C_W_E);
+ }
+ closedir(f);
+ done:
+ return make_obj_error(ctx, obj, err);
+}
+
+#if !defined(_WIN32)
+static int64_t timespec_to_ms(const struct timespec *tv)
+{
+ return (int64_t)tv->tv_sec * 1000 + (tv->tv_nsec / 1000000);
+}
+#endif
+
+/* return [obj, errcode] */
+static JSValue js_os_stat(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int is_lstat)
+{
+ const char *path;
+ int err, res;
+ struct stat st;
+ JSValue obj;
+
+ path = JS_ToCString(ctx, argv[0]);
+ if (!path)
+ return JS_EXCEPTION;
+#if defined(_WIN32)
+ res = stat(path, &st);
+#else
+ if (is_lstat)
+ res = lstat(path, &st);
+ else
+ res = stat(path, &st);
+#endif
+ if (res < 0)
+ err = errno;
+ else
+ err = 0;
+ JS_FreeCString(ctx, path);
+ if (res < 0) {
+ obj = JS_NULL;
+ } else {
+ obj = JS_NewObject(ctx);
+ if (JS_IsException(obj))
+ return JS_EXCEPTION;
+ JS_DefinePropertyValueStr(ctx, obj, "dev",
+ JS_NewInt64(ctx, st.st_dev),
+ JS_PROP_C_W_E);
+ JS_DefinePropertyValueStr(ctx, obj, "ino",
+ JS_NewInt64(ctx, st.st_ino),
+ JS_PROP_C_W_E);
+ JS_DefinePropertyValueStr(ctx, obj, "mode",
+ JS_NewInt32(ctx, st.st_mode),
+ JS_PROP_C_W_E);
+ JS_DefinePropertyValueStr(ctx, obj, "nlink",
+ JS_NewInt64(ctx, st.st_nlink),
+ JS_PROP_C_W_E);
+ JS_DefinePropertyValueStr(ctx, obj, "uid",
+ JS_NewInt64(ctx, st.st_uid),
+ JS_PROP_C_W_E);
+ JS_DefinePropertyValueStr(ctx, obj, "gid",
+ JS_NewInt64(ctx, st.st_gid),
+ JS_PROP_C_W_E);
+ JS_DefinePropertyValueStr(ctx, obj, "rdev",
+ JS_NewInt64(ctx, st.st_rdev),
+ JS_PROP_C_W_E);
+ JS_DefinePropertyValueStr(ctx, obj, "size",
+ JS_NewInt64(ctx, st.st_size),
+ JS_PROP_C_W_E);
+#if !defined(_WIN32)
+ JS_DefinePropertyValueStr(ctx, obj, "blocks",
+ JS_NewInt64(ctx, st.st_blocks),
+ JS_PROP_C_W_E);
+#endif
+#if defined(_WIN32)
+ JS_DefinePropertyValueStr(ctx, obj, "atime",
+ JS_NewInt64(ctx, (int64_t)st.st_atime * 1000),
+ JS_PROP_C_W_E);
+ JS_DefinePropertyValueStr(ctx, obj, "mtime",
+ JS_NewInt64(ctx, (int64_t)st.st_mtime * 1000),
+ JS_PROP_C_W_E);
+ JS_DefinePropertyValueStr(ctx, obj, "ctime",
+ JS_NewInt64(ctx, (int64_t)st.st_ctime * 1000),
+ JS_PROP_C_W_E);
+#elif defined(__APPLE__)
+ JS_DefinePropertyValueStr(ctx, obj, "atime",
+ JS_NewInt64(ctx, timespec_to_ms(&st.st_atimespec)),
+ JS_PROP_C_W_E);
+ JS_DefinePropertyValueStr(ctx, obj, "mtime",
+ JS_NewInt64(ctx, timespec_to_ms(&st.st_mtimespec)),
+ JS_PROP_C_W_E);
+ JS_DefinePropertyValueStr(ctx, obj, "ctime",
+ JS_NewInt64(ctx, timespec_to_ms(&st.st_ctimespec)),
+ JS_PROP_C_W_E);
+#else
+ JS_DefinePropertyValueStr(ctx, obj, "atime",
+ JS_NewInt64(ctx, timespec_to_ms(&st.st_atim)),
+ JS_PROP_C_W_E);
+ JS_DefinePropertyValueStr(ctx, obj, "mtime",
+ JS_NewInt64(ctx, timespec_to_ms(&st.st_mtim)),
+ JS_PROP_C_W_E);
+ JS_DefinePropertyValueStr(ctx, obj, "ctime",
+ JS_NewInt64(ctx, timespec_to_ms(&st.st_ctim)),
+ JS_PROP_C_W_E);
+#endif
+ }
+ return make_obj_error(ctx, obj, err);
+}
+
+#if !defined(_WIN32)
+static void ms_to_timeval(struct timeval *tv, uint64_t v)
+{
+ tv->tv_sec = v / 1000;
+ tv->tv_usec = (v % 1000) * 1000;
+}
+#endif
+
+static JSValue js_os_utimes(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ const char *path;
+ int64_t atime, mtime;
+ int ret;
+
+ if (JS_ToInt64(ctx, &atime, argv[1]))
+ return JS_EXCEPTION;
+ if (JS_ToInt64(ctx, &mtime, argv[2]))
+ return JS_EXCEPTION;
+ path = JS_ToCString(ctx, argv[0]);
+ if (!path)
+ return JS_EXCEPTION;
+#if defined(_WIN32)
+ {
+ struct _utimbuf times;
+ times.actime = atime / 1000;
+ times.modtime = mtime / 1000;
+ ret = js_get_errno(_utime(path, ×));
+ }
+#else
+ {
+ struct timeval times[2];
+ ms_to_timeval(×[0], atime);
+ ms_to_timeval(×[1], mtime);
+ ret = js_get_errno(utimes(path, times));
+ }
+#endif
+ JS_FreeCString(ctx, path);
+ return JS_NewInt32(ctx, ret);
+}
+
+/* sleep(delay_ms) */
+static JSValue js_os_sleep(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ int64_t delay;
+ int ret;
+
+ if (JS_ToInt64(ctx, &delay, argv[0]))
+ return JS_EXCEPTION;
+ if (delay < 0)
+ delay = 0;
+#if defined(_WIN32)
+ {
+ if (delay > INT32_MAX)
+ delay = INT32_MAX;
+ Sleep(delay);
+ ret = 0;
+ }
+#else
+ {
+ struct timespec ts;
+
+ ts.tv_sec = delay / 1000;
+ ts.tv_nsec = (delay % 1000) * 1000000;
+ ret = js_get_errno(nanosleep(&ts, NULL));
+ }
+#endif
+ return JS_NewInt32(ctx, ret);
+}
+
+#if defined(_WIN32)
+static char *realpath(const char *path, char *buf)
+{
+ if (!_fullpath(buf, path, PATH_MAX)) {
+ errno = ENOENT;
+ return NULL;
+ } else {
+ return buf;
+ }
+}
+#endif
+
+/* return [path, errorcode] */
+static JSValue js_os_realpath(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ const char *path;
+ char buf[PATH_MAX], *res;
+ int err;
+
+ path = JS_ToCString(ctx, argv[0]);
+ if (!path)
+ return JS_EXCEPTION;
+ res = realpath(path, buf);
+ JS_FreeCString(ctx, path);
+ if (!res) {
+ buf[0] = '\0';
+ err = errno;
+ } else {
+ err = 0;
+ }
+ return make_string_error(ctx, buf, err);
+}
+
+#if !defined(_WIN32)
+static JSValue js_os_symlink(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ const char *target, *linkpath;
+ int err;
+
+ target = JS_ToCString(ctx, argv[0]);
+ if (!target)
+ return JS_EXCEPTION;
+ linkpath = JS_ToCString(ctx, argv[1]);
+ if (!linkpath) {
+ JS_FreeCString(ctx, target);
+ return JS_EXCEPTION;
+ }
+ err = js_get_errno(symlink(target, linkpath));
+ JS_FreeCString(ctx, target);
+ JS_FreeCString(ctx, linkpath);
+ return JS_NewInt32(ctx, err);
+}
+
+/* return [path, errorcode] */
+static JSValue js_os_readlink(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ const char *path;
+ char buf[PATH_MAX];
+ int err;
+ ssize_t res;
+
+ path = JS_ToCString(ctx, argv[0]);
+ if (!path)
+ return JS_EXCEPTION;
+ res = readlink(path, buf, sizeof(buf) - 1);
+ if (res < 0) {
+ buf[0] = '\0';
+ err = errno;
+ } else {
+ buf[res] = '\0';
+ err = 0;
+ }
+ JS_FreeCString(ctx, path);
+ return make_string_error(ctx, buf, err);
+}
+
+static char **build_envp(JSContext *ctx, JSValueConst obj)
+{
+ uint32_t len, i;
+ JSPropertyEnum *tab;
+ char **envp, *pair;
+ const char *key, *str;
+ JSValue val;
+ size_t key_len, str_len;
+
+ if (JS_GetOwnPropertyNames(ctx, &tab, &len, obj,
+ JS_GPN_STRING_MASK | JS_GPN_ENUM_ONLY) < 0)
+ return NULL;
+ envp = js_mallocz(ctx, sizeof(envp[0]) * ((size_t)len + 1));
+ if (!envp)
+ goto fail;
+ for(i = 0; i < len; i++) {
+ val = JS_GetProperty(ctx, obj, tab[i].atom);
+ if (JS_IsException(val))
+ goto fail;
+ str = JS_ToCString(ctx, val);
+ JS_FreeValue(ctx, val);
+ if (!str)
+ goto fail;
+ key = JS_AtomToCString(ctx, tab[i].atom);
+ if (!key) {
+ JS_FreeCString(ctx, str);
+ goto fail;
+ }
+ key_len = strlen(key);
+ str_len = strlen(str);
+ pair = js_malloc(ctx, key_len + str_len + 2);
+ if (!pair) {
+ JS_FreeCString(ctx, key);
+ JS_FreeCString(ctx, str);
+ goto fail;
+ }
+ memcpy(pair, key, key_len);
+ pair[key_len] = '=';
+ memcpy(pair + key_len + 1, str, str_len);
+ pair[key_len + 1 + str_len] = '\0';
+ envp[i] = pair;
+ JS_FreeCString(ctx, key);
+ JS_FreeCString(ctx, str);
+ }
+ done:
+ for(i = 0; i < len; i++)
+ JS_FreeAtom(ctx, tab[i].atom);
+ js_free(ctx, tab);
+ return envp;
+ fail:
+ if (envp) {
+ for(i = 0; i < len; i++)
+ js_free(ctx, envp[i]);
+ js_free(ctx, envp);
+ envp = NULL;
+ }
+ goto done;
+}
+
+/* execvpe is not available on non GNU systems */
+static int my_execvpe(const char *filename, char **argv, char **envp)
+{
+ char *path, *p, *p_next, *p1;
+ char buf[PATH_MAX];
+ size_t filename_len, path_len;
+ BOOL eacces_error;
+
+ filename_len = strlen(filename);
+ if (filename_len == 0) {
+ errno = ENOENT;
+ return -1;
+ }
+ if (strchr(filename, '/'))
+ return execve(filename, argv, envp);
+
+ path = getenv("PATH");
+ if (!path)
+ path = (char *)"/bin:/usr/bin";
+ eacces_error = FALSE;
+ p = path;
+ for(p = path; p != NULL; p = p_next) {
+ p1 = strchr(p, ':');
+ if (!p1) {
+ p_next = NULL;
+ path_len = strlen(p);
+ } else {
+ p_next = p1 + 1;
+ path_len = p1 - p;
+ }
+ /* path too long */
+ if ((path_len + 1 + filename_len + 1) > PATH_MAX)
+ continue;
+ memcpy(buf, p, path_len);
+ buf[path_len] = '/';
+ memcpy(buf + path_len + 1, filename, filename_len);
+ buf[path_len + 1 + filename_len] = '\0';
+
+ execve(buf, argv, envp);
+
+ switch(errno) {
+ case EACCES:
+ eacces_error = TRUE;
+ break;
+ case ENOENT:
+ case ENOTDIR:
+ break;
+ default:
+ return -1;
+ }
+ }
+ if (eacces_error)
+ errno = EACCES;
+ return -1;
+}
+
+/* exec(args[, options]) -> exitcode */
+static JSValue js_os_exec(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValueConst options, args = argv[0];
+ JSValue val, ret_val;
+ const char **exec_argv, *file = NULL, *str, *cwd = NULL;
+ char **envp = environ;
+ uint32_t exec_argc, i;
+ int ret, pid, status;
+ BOOL block_flag = TRUE, use_path = TRUE;
+ static const char *std_name[3] = { "stdin", "stdout", "stderr" };
+ int std_fds[3];
+ uint32_t uid = -1, gid = -1;
+
+ val = JS_GetPropertyStr(ctx, args, "length");
+ if (JS_IsException(val))
+ return JS_EXCEPTION;
+ ret = JS_ToUint32(ctx, &exec_argc, val);
+ JS_FreeValue(ctx, val);
+ if (ret)
+ return JS_EXCEPTION;
+ /* arbitrary limit to avoid overflow */
+ if (exec_argc < 1 || exec_argc > 65535) {
+ return JS_ThrowTypeError(ctx, "invalid number of arguments");
+ }
+ exec_argv = js_mallocz(ctx, sizeof(exec_argv[0]) * (exec_argc + 1));
+ if (!exec_argv)
+ return JS_EXCEPTION;
+ for(i = 0; i < exec_argc; i++) {
+ val = JS_GetPropertyUint32(ctx, args, i);
+ if (JS_IsException(val))
+ goto exception;
+ str = JS_ToCString(ctx, val);
+ JS_FreeValue(ctx, val);
+ if (!str)
+ goto exception;
+ exec_argv[i] = str;
+ }
+ exec_argv[exec_argc] = NULL;
+
+ for(i = 0; i < 3; i++)
+ std_fds[i] = i;
+
+ /* get the options, if any */
+ if (argc >= 2) {
+ options = argv[1];
+
+ if (get_bool_option(ctx, &block_flag, options, "block"))
+ goto exception;
+ if (get_bool_option(ctx, &use_path, options, "usePath"))
+ goto exception;
+
+ val = JS_GetPropertyStr(ctx, options, "file");
+ if (JS_IsException(val))
+ goto exception;
+ if (!JS_IsUndefined(val)) {
+ file = JS_ToCString(ctx, val);
+ JS_FreeValue(ctx, val);
+ if (!file)
+ goto exception;
+ }
+
+ val = JS_GetPropertyStr(ctx, options, "cwd");
+ if (JS_IsException(val))
+ goto exception;
+ if (!JS_IsUndefined(val)) {
+ cwd = JS_ToCString(ctx, val);
+ JS_FreeValue(ctx, val);
+ if (!cwd)
+ goto exception;
+ }
+
+ /* stdin/stdout/stderr handles */
+ for(i = 0; i < 3; i++) {
+ val = JS_GetPropertyStr(ctx, options, std_name[i]);
+ if (JS_IsException(val))
+ goto exception;
+ if (!JS_IsUndefined(val)) {
+ int fd;
+ ret = JS_ToInt32(ctx, &fd, val);
+ JS_FreeValue(ctx, val);
+ if (ret)
+ goto exception;
+ std_fds[i] = fd;
+ }
+ }
+
+ val = JS_GetPropertyStr(ctx, options, "env");
+ if (JS_IsException(val))
+ goto exception;
+ if (!JS_IsUndefined(val)) {
+ envp = build_envp(ctx, val);
+ JS_FreeValue(ctx, val);
+ if (!envp)
+ goto exception;
+ }
+
+ val = JS_GetPropertyStr(ctx, options, "uid");
+ if (JS_IsException(val))
+ goto exception;
+ if (!JS_IsUndefined(val)) {
+ ret = JS_ToUint32(ctx, &uid, val);
+ JS_FreeValue(ctx, val);
+ if (ret)
+ goto exception;
+ }
+
+ val = JS_GetPropertyStr(ctx, options, "gid");
+ if (JS_IsException(val))
+ goto exception;
+ if (!JS_IsUndefined(val)) {
+ ret = JS_ToUint32(ctx, &gid, val);
+ JS_FreeValue(ctx, val);
+ if (ret)
+ goto exception;
+ }
+ }
+
+ pid = fork();
+ if (pid < 0) {
+ JS_ThrowTypeError(ctx, "fork error");
+ goto exception;
+ }
+ if (pid == 0) {
+ /* child */
+ int fd_max = sysconf(_SC_OPEN_MAX);
+
+ /* remap the stdin/stdout/stderr handles if necessary */
+ for(i = 0; i < 3; i++) {
+ if (std_fds[i] != i) {
+ if (dup2(std_fds[i], i) < 0)
+ _exit(127);
+ }
+ }
+
+ for(i = 3; i < fd_max; i++)
+ close(i);
+ if (cwd) {
+ if (chdir(cwd) < 0)
+ _exit(127);
+ }
+ if (uid != -1) {
+ if (setuid(uid) < 0)
+ _exit(127);
+ }
+ if (gid != -1) {
+ if (setgid(gid) < 0)
+ _exit(127);
+ }
+
+ if (!file)
+ file = exec_argv[0];
+ if (use_path)
+ ret = my_execvpe(file, (char **)exec_argv, envp);
+ else
+ ret = execve(file, (char **)exec_argv, envp);
+ _exit(127);
+ }
+ /* parent */
+ if (block_flag) {
+ for(;;) {
+ ret = waitpid(pid, &status, 0);
+ if (ret == pid) {
+ if (WIFEXITED(status)) {
+ ret = WEXITSTATUS(status);
+ break;
+ } else if (WIFSIGNALED(status)) {
+ ret = -WTERMSIG(status);
+ break;
+ }
+ }
+ }
+ } else {
+ ret = pid;
+ }
+ ret_val = JS_NewInt32(ctx, ret);
+ done:
+ JS_FreeCString(ctx, file);
+ JS_FreeCString(ctx, cwd);
+ for(i = 0; i < exec_argc; i++)
+ JS_FreeCString(ctx, exec_argv[i]);
+ js_free(ctx, exec_argv);
+ if (envp != environ) {
+ char **p;
+ p = envp;
+ while (*p != NULL) {
+ js_free(ctx, *p);
+ p++;
+ }
+ js_free(ctx, envp);
+ }
+ return ret_val;
+ exception:
+ ret_val = JS_EXCEPTION;
+ goto done;
+}
+
+/* getpid() -> pid */
+static JSValue js_os_getpid(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ return JS_NewInt32(ctx, getpid());
+}
+
+/* waitpid(pid, block) -> [pid, status] */
+static JSValue js_os_waitpid(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ int pid, status, options, ret;
+ JSValue obj;
+
+ if (JS_ToInt32(ctx, &pid, argv[0]))
+ return JS_EXCEPTION;
+ if (JS_ToInt32(ctx, &options, argv[1]))
+ return JS_EXCEPTION;
+
+ ret = waitpid(pid, &status, options);
+ if (ret < 0) {
+ ret = -errno;
+ status = 0;
+ }
+
+ obj = JS_NewArray(ctx);
+ if (JS_IsException(obj))
+ return obj;
+ JS_DefinePropertyValueUint32(ctx, obj, 0, JS_NewInt32(ctx, ret),
+ JS_PROP_C_W_E);
+ JS_DefinePropertyValueUint32(ctx, obj, 1, JS_NewInt32(ctx, status),
+ JS_PROP_C_W_E);
+ return obj;
+}
+
+/* pipe() -> [read_fd, write_fd] or null if error */
+static JSValue js_os_pipe(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ int pipe_fds[2], ret;
+ JSValue obj;
+
+ ret = pipe(pipe_fds);
+ if (ret < 0)
+ return JS_NULL;
+ obj = JS_NewArray(ctx);
+ if (JS_IsException(obj))
+ return obj;
+ JS_DefinePropertyValueUint32(ctx, obj, 0, JS_NewInt32(ctx, pipe_fds[0]),
+ JS_PROP_C_W_E);
+ JS_DefinePropertyValueUint32(ctx, obj, 1, JS_NewInt32(ctx, pipe_fds[1]),
+ JS_PROP_C_W_E);
+ return obj;
+}
+
+/* kill(pid, sig) */
+static JSValue js_os_kill(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ int pid, sig, ret;
+
+ if (JS_ToInt32(ctx, &pid, argv[0]))
+ return JS_EXCEPTION;
+ if (JS_ToInt32(ctx, &sig, argv[1]))
+ return JS_EXCEPTION;
+ ret = js_get_errno(kill(pid, sig));
+ return JS_NewInt32(ctx, ret);
+}
+
+/* dup(fd) */
+static JSValue js_os_dup(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ int fd, ret;
+
+ if (JS_ToInt32(ctx, &fd, argv[0]))
+ return JS_EXCEPTION;
+ ret = js_get_errno(dup(fd));
+ return JS_NewInt32(ctx, ret);
+}
+
+/* dup2(fd) */
+static JSValue js_os_dup2(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ int fd, fd2, ret;
+
+ if (JS_ToInt32(ctx, &fd, argv[0]))
+ return JS_EXCEPTION;
+ if (JS_ToInt32(ctx, &fd2, argv[1]))
+ return JS_EXCEPTION;
+ ret = js_get_errno(dup2(fd, fd2));
+ return JS_NewInt32(ctx, ret);
+}
+
+#endif /* !_WIN32 */
+
+#ifdef USE_WORKER
+
+/* Worker */
+
+typedef struct {
+ JSWorkerMessagePipe *recv_pipe;
+ JSWorkerMessagePipe *send_pipe;
+ JSWorkerMessageHandler *msg_handler;
+} JSWorkerData;
+
+typedef struct {
+ char *filename; /* module filename */
+ char *basename; /* module base name */
+ JSWorkerMessagePipe *recv_pipe, *send_pipe;
+} WorkerFuncArgs;
+
+typedef struct {
+ int ref_count;
+ uint64_t buf[0];
+} JSSABHeader;
+
+static JSClassID js_worker_class_id;
+static JSContext *(*js_worker_new_context_func)(JSRuntime *rt);
+
+static int atomic_add_int(int *ptr, int v)
+{
+ return atomic_fetch_add((_Atomic(uint32_t) *)ptr, v) + v;
+}
+
+/* shared array buffer allocator */
+static void *js_sab_alloc(void *opaque, size_t size)
+{
+ JSSABHeader *sab;
+ sab = malloc(sizeof(JSSABHeader) + size);
+ if (!sab)
+ return NULL;
+ sab->ref_count = 1;
+ return sab->buf;
+}
+
+static void js_sab_free(void *opaque, void *ptr)
+{
+ JSSABHeader *sab;
+ int ref_count;
+ sab = (JSSABHeader *)((uint8_t *)ptr - sizeof(JSSABHeader));
+ ref_count = atomic_add_int(&sab->ref_count, -1);
+ assert(ref_count >= 0);
+ if (ref_count == 0) {
+ free(sab);
+ }
+}
+
+static void js_sab_dup(void *opaque, void *ptr)
+{
+ JSSABHeader *sab;
+ sab = (JSSABHeader *)((uint8_t *)ptr - sizeof(JSSABHeader));
+ atomic_add_int(&sab->ref_count, 1);
+}
+
+static JSWorkerMessagePipe *js_new_message_pipe(void)
+{
+ JSWorkerMessagePipe *ps;
+ int pipe_fds[2];
+
+ if (pipe(pipe_fds) < 0)
+ return NULL;
+
+ ps = malloc(sizeof(*ps));
+ if (!ps) {
+ close(pipe_fds[0]);
+ close(pipe_fds[1]);
+ return NULL;
+ }
+ ps->ref_count = 1;
+ init_list_head(&ps->msg_queue);
+ pthread_mutex_init(&ps->mutex, NULL);
+ ps->read_fd = pipe_fds[0];
+ ps->write_fd = pipe_fds[1];
+ return ps;
+}
+
+static JSWorkerMessagePipe *js_dup_message_pipe(JSWorkerMessagePipe *ps)
+{
+ atomic_add_int(&ps->ref_count, 1);
+ return ps;
+}
+
+static void js_free_message(JSWorkerMessage *msg)
+{
+ size_t i;
+ /* free the SAB */
+ for(i = 0; i < msg->sab_tab_len; i++) {
+ js_sab_free(NULL, msg->sab_tab[i]);
+ }
+ free(msg->sab_tab);
+ free(msg->data);
+ free(msg);
+}
+
+static void js_free_message_pipe(JSWorkerMessagePipe *ps)
+{
+ struct list_head *el, *el1;
+ JSWorkerMessage *msg;
+ int ref_count;
+
+ if (!ps)
+ return;
+
+ ref_count = atomic_add_int(&ps->ref_count, -1);
+ assert(ref_count >= 0);
+ if (ref_count == 0) {
+ list_for_each_safe(el, el1, &ps->msg_queue) {
+ msg = list_entry(el, JSWorkerMessage, link);
+ js_free_message(msg);
+ }
+ pthread_mutex_destroy(&ps->mutex);
+ close(ps->read_fd);
+ close(ps->write_fd);
+ free(ps);
+ }
+}
+
+static void js_free_port(JSRuntime *rt, JSWorkerMessageHandler *port)
+{
+ if (port) {
+ js_free_message_pipe(port->recv_pipe);
+ JS_FreeValueRT(rt, port->on_message_func);
+ list_del(&port->link);
+ js_free_rt(rt, port);
+ }
+}
+
+static void js_worker_finalizer(JSRuntime *rt, JSValue val)
+{
+ JSWorkerData *worker = JS_GetOpaque(val, js_worker_class_id);
+ if (worker) {
+ js_free_message_pipe(worker->recv_pipe);
+ js_free_message_pipe(worker->send_pipe);
+ js_free_port(rt, worker->msg_handler);
+ js_free_rt(rt, worker);
+ }
+}
+
+static JSClassDef js_worker_class = {
+ "Worker",
+ .finalizer = js_worker_finalizer,
+};
+
+static void *worker_func(void *opaque)
+{
+ WorkerFuncArgs *args = opaque;
+ JSRuntime *rt;
+ JSThreadState *ts;
+ JSContext *ctx;
+ JSValue val;
+
+ rt = JS_NewRuntime();
+ if (rt == NULL) {
+ fprintf(stderr, "JS_NewRuntime failure");
+ exit(1);
+ }
+ js_std_init_handlers(rt);
+
+ JS_SetModuleLoaderFunc(rt, NULL, js_module_loader, NULL);
+
+ /* set the pipe to communicate with the parent */
+ ts = JS_GetRuntimeOpaque(rt);
+ ts->recv_pipe = args->recv_pipe;
+ ts->send_pipe = args->send_pipe;
+
+ /* function pointer to avoid linking the whole JS_NewContext() if
+ not needed */
+ ctx = js_worker_new_context_func(rt);
+ if (ctx == NULL) {
+ fprintf(stderr, "JS_NewContext failure");
+ }
+
+ JS_SetCanBlock(rt, TRUE);
+
+ js_std_add_helpers(ctx, -1, NULL);
+
+ val = JS_LoadModule(ctx, args->basename, args->filename);
+ free(args->filename);
+ free(args->basename);
+ free(args);
+ val = js_std_await(ctx, val);
+ if (JS_IsException(val))
+ js_std_dump_error(ctx);
+ JS_FreeValue(ctx, val);
+
+ js_std_loop(ctx);
+
+ JS_FreeContext(ctx);
+ js_std_free_handlers(rt);
+ JS_FreeRuntime(rt);
+ return NULL;
+}
+
+static JSValue js_worker_ctor_internal(JSContext *ctx, JSValueConst new_target,
+ JSWorkerMessagePipe *recv_pipe,
+ JSWorkerMessagePipe *send_pipe)
+{
+ JSValue obj = JS_UNDEFINED, proto;
+ JSWorkerData *s;
+
+ /* create the object */
+ if (JS_IsUndefined(new_target)) {
+ proto = JS_GetClassProto(ctx, js_worker_class_id);
+ } else {
+ proto = JS_GetPropertyStr(ctx, new_target, "prototype");
+ if (JS_IsException(proto))
+ goto fail;
+ }
+ obj = JS_NewObjectProtoClass(ctx, proto, js_worker_class_id);
+ JS_FreeValue(ctx, proto);
+ if (JS_IsException(obj))
+ goto fail;
+ s = js_mallocz(ctx, sizeof(*s));
+ if (!s)
+ goto fail;
+ s->recv_pipe = js_dup_message_pipe(recv_pipe);
+ s->send_pipe = js_dup_message_pipe(send_pipe);
+
+ JS_SetOpaque(obj, s);
+ return obj;
+ fail:
+ JS_FreeValue(ctx, obj);
+ return JS_EXCEPTION;
+}
+
+static JSValue js_worker_ctor(JSContext *ctx, JSValueConst new_target,
+ int argc, JSValueConst *argv)
+{
+ JSRuntime *rt = JS_GetRuntime(ctx);
+ WorkerFuncArgs *args = NULL;
+ pthread_t tid;
+ pthread_attr_t attr;
+ JSValue obj = JS_UNDEFINED;
+ int ret;
+ const char *filename = NULL, *basename;
+ JSAtom basename_atom;
+
+ /* XXX: in order to avoid problems with resource liberation, we
+ don't support creating workers inside workers */
+ if (!is_main_thread(rt))
+ return JS_ThrowTypeError(ctx, "cannot create a worker inside a worker");
+
+ /* base name, assuming the calling function is a normal JS
+ function */
+ basename_atom = JS_GetScriptOrModuleName(ctx, 1);
+ if (basename_atom == JS_ATOM_NULL) {
+ return JS_ThrowTypeError(ctx, "could not determine calling script or module name");
+ }
+ basename = JS_AtomToCString(ctx, basename_atom);
+ JS_FreeAtom(ctx, basename_atom);
+ if (!basename)
+ goto fail;
+
+ /* module name */
+ filename = JS_ToCString(ctx, argv[0]);
+ if (!filename)
+ goto fail;
+
+ args = malloc(sizeof(*args));
+ if (!args)
+ goto oom_fail;
+ memset(args, 0, sizeof(*args));
+ args->filename = strdup(filename);
+ args->basename = strdup(basename);
+
+ /* ports */
+ args->recv_pipe = js_new_message_pipe();
+ if (!args->recv_pipe)
+ goto oom_fail;
+ args->send_pipe = js_new_message_pipe();
+ if (!args->send_pipe)
+ goto oom_fail;
+
+ obj = js_worker_ctor_internal(ctx, new_target,
+ args->send_pipe, args->recv_pipe);
+ if (JS_IsException(obj))
+ goto fail;
+
+ pthread_attr_init(&attr);
+ /* no join at the end */
+ pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
+ ret = pthread_create(&tid, &attr, worker_func, args);
+ pthread_attr_destroy(&attr);
+ if (ret != 0) {
+ JS_ThrowTypeError(ctx, "could not create worker");
+ goto fail;
+ }
+ JS_FreeCString(ctx, basename);
+ JS_FreeCString(ctx, filename);
+ return obj;
+ oom_fail:
+ JS_ThrowOutOfMemory(ctx);
+ fail:
+ JS_FreeCString(ctx, basename);
+ JS_FreeCString(ctx, filename);
+ if (args) {
+ free(args->filename);
+ free(args->basename);
+ js_free_message_pipe(args->recv_pipe);
+ js_free_message_pipe(args->send_pipe);
+ free(args);
+ }
+ JS_FreeValue(ctx, obj);
+ return JS_EXCEPTION;
+}
+
+static JSValue js_worker_postMessage(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSWorkerData *worker = JS_GetOpaque2(ctx, this_val, js_worker_class_id);
+ JSWorkerMessagePipe *ps;
+ size_t data_len, sab_tab_len, i;
+ uint8_t *data;
+ JSWorkerMessage *msg;
+ uint8_t **sab_tab;
+
+ if (!worker)
+ return JS_EXCEPTION;
+
+ data = JS_WriteObject2(ctx, &data_len, argv[0],
+ JS_WRITE_OBJ_SAB | JS_WRITE_OBJ_REFERENCE,
+ &sab_tab, &sab_tab_len);
+ if (!data)
+ return JS_EXCEPTION;
+
+ msg = malloc(sizeof(*msg));
+ if (!msg)
+ goto fail;
+ msg->data = NULL;
+ msg->sab_tab = NULL;
+
+ /* must reallocate because the allocator may be different */
+ msg->data = malloc(data_len);
+ if (!msg->data)
+ goto fail;
+ memcpy(msg->data, data, data_len);
+ msg->data_len = data_len;
+
+ if (sab_tab_len > 0) {
+ msg->sab_tab = malloc(sizeof(msg->sab_tab[0]) * sab_tab_len);
+ if (!msg->sab_tab)
+ goto fail;
+ memcpy(msg->sab_tab, sab_tab, sizeof(msg->sab_tab[0]) * sab_tab_len);
+ }
+ msg->sab_tab_len = sab_tab_len;
+
+ js_free(ctx, data);
+ js_free(ctx, sab_tab);
+
+ /* increment the SAB reference counts */
+ for(i = 0; i < msg->sab_tab_len; i++) {
+ js_sab_dup(NULL, msg->sab_tab[i]);
+ }
+
+ ps = worker->send_pipe;
+ pthread_mutex_lock(&ps->mutex);
+ /* indicate that data is present */
+ if (list_empty(&ps->msg_queue)) {
+ uint8_t ch = '\0';
+ int ret;
+ for(;;) {
+ ret = write(ps->write_fd, &ch, 1);
+ if (ret == 1)
+ break;
+ if (ret < 0 && (errno != EAGAIN || errno != EINTR))
+ break;
+ }
+ }
+ list_add_tail(&msg->link, &ps->msg_queue);
+ pthread_mutex_unlock(&ps->mutex);
+ return JS_UNDEFINED;
+ fail:
+ if (msg) {
+ free(msg->data);
+ free(msg->sab_tab);
+ free(msg);
+ }
+ js_free(ctx, data);
+ js_free(ctx, sab_tab);
+ return JS_EXCEPTION;
+
+}
+
+static JSValue js_worker_set_onmessage(JSContext *ctx, JSValueConst this_val,
+ JSValueConst func)
+{
+ JSRuntime *rt = JS_GetRuntime(ctx);
+ JSThreadState *ts = JS_GetRuntimeOpaque(rt);
+ JSWorkerData *worker = JS_GetOpaque2(ctx, this_val, js_worker_class_id);
+ JSWorkerMessageHandler *port;
+
+ if (!worker)
+ return JS_EXCEPTION;
+
+ port = worker->msg_handler;
+ if (JS_IsNull(func)) {
+ if (port) {
+ js_free_port(rt, port);
+ worker->msg_handler = NULL;
+ }
+ } else {
+ if (!JS_IsFunction(ctx, func))
+ return JS_ThrowTypeError(ctx, "not a function");
+ if (!port) {
+ port = js_mallocz(ctx, sizeof(*port));
+ if (!port)
+ return JS_EXCEPTION;
+ port->recv_pipe = js_dup_message_pipe(worker->recv_pipe);
+ port->on_message_func = JS_NULL;
+ list_add_tail(&port->link, &ts->port_list);
+ worker->msg_handler = port;
+ }
+ JS_FreeValue(ctx, port->on_message_func);
+ port->on_message_func = JS_DupValue(ctx, func);
+ }
+ return JS_UNDEFINED;
+}
+
+static JSValue js_worker_get_onmessage(JSContext *ctx, JSValueConst this_val)
+{
+ JSWorkerData *worker = JS_GetOpaque2(ctx, this_val, js_worker_class_id);
+ JSWorkerMessageHandler *port;
+ if (!worker)
+ return JS_EXCEPTION;
+ port = worker->msg_handler;
+ if (port) {
+ return JS_DupValue(ctx, port->on_message_func);
+ } else {
+ return JS_NULL;
+ }
+}
+
+static const JSCFunctionListEntry js_worker_proto_funcs[] = {
+ JS_CFUNC_DEF("postMessage", 1, js_worker_postMessage ),
+ JS_CGETSET_DEF("onmessage", js_worker_get_onmessage, js_worker_set_onmessage ),
+};
+
+#endif /* USE_WORKER */
+
+void js_std_set_worker_new_context_func(JSContext *(*func)(JSRuntime *rt))
+{
+#ifdef USE_WORKER
+ js_worker_new_context_func = func;
+#endif
+}
+
+#if defined(_WIN32)
+#define OS_PLATFORM "win32"
+#elif defined(__APPLE__)
+#define OS_PLATFORM "darwin"
+#elif defined(EMSCRIPTEN)
+#define OS_PLATFORM "js"
+#else
+#define OS_PLATFORM "linux"
+#endif
+
+#define OS_FLAG(x) JS_PROP_INT32_DEF(#x, x, JS_PROP_CONFIGURABLE )
+
+static const JSCFunctionListEntry js_os_funcs[] = {
+ JS_CFUNC_DEF("open", 2, js_os_open ),
+ OS_FLAG(O_RDONLY),
+ OS_FLAG(O_WRONLY),
+ OS_FLAG(O_RDWR),
+ OS_FLAG(O_APPEND),
+ OS_FLAG(O_CREAT),
+ OS_FLAG(O_EXCL),
+ OS_FLAG(O_TRUNC),
+#if defined(_WIN32)
+ OS_FLAG(O_BINARY),
+ OS_FLAG(O_TEXT),
+#endif
+ JS_CFUNC_DEF("close", 1, js_os_close ),
+ JS_CFUNC_DEF("seek", 3, js_os_seek ),
+ JS_CFUNC_MAGIC_DEF("read", 4, js_os_read_write, 0 ),
+ JS_CFUNC_MAGIC_DEF("write", 4, js_os_read_write, 1 ),
+ JS_CFUNC_DEF("isatty", 1, js_os_isatty ),
+ JS_CFUNC_DEF("ttyGetWinSize", 1, js_os_ttyGetWinSize ),
+ JS_CFUNC_DEF("ttySetRaw", 1, js_os_ttySetRaw ),
+ JS_CFUNC_DEF("remove", 1, js_os_remove ),
+ JS_CFUNC_DEF("rename", 2, js_os_rename ),
+ JS_CFUNC_MAGIC_DEF("setReadHandler", 2, js_os_setReadHandler, 0 ),
+ JS_CFUNC_MAGIC_DEF("setWriteHandler", 2, js_os_setReadHandler, 1 ),
+ JS_CFUNC_DEF("signal", 2, js_os_signal ),
+ OS_FLAG(SIGINT),
+ OS_FLAG(SIGABRT),
+ OS_FLAG(SIGFPE),
+ OS_FLAG(SIGILL),
+ OS_FLAG(SIGSEGV),
+ OS_FLAG(SIGTERM),
+#if !defined(_WIN32)
+ OS_FLAG(SIGQUIT),
+ OS_FLAG(SIGPIPE),
+ OS_FLAG(SIGALRM),
+ OS_FLAG(SIGUSR1),
+ OS_FLAG(SIGUSR2),
+ OS_FLAG(SIGCHLD),
+ OS_FLAG(SIGCONT),
+ OS_FLAG(SIGSTOP),
+ OS_FLAG(SIGTSTP),
+ OS_FLAG(SIGTTIN),
+ OS_FLAG(SIGTTOU),
+#endif
+ JS_CFUNC_DEF("now", 0, js_os_now ),
+ JS_CFUNC_DEF("setTimeout", 2, js_os_setTimeout ),
+ JS_CFUNC_DEF("clearTimeout", 1, js_os_clearTimeout ),
+ JS_CFUNC_DEF("sleepAsync", 1, js_os_sleepAsync ),
+ JS_PROP_STRING_DEF("platform", OS_PLATFORM, 0 ),
+ JS_CFUNC_DEF("getcwd", 0, js_os_getcwd ),
+ JS_CFUNC_DEF("chdir", 0, js_os_chdir ),
+ JS_CFUNC_DEF("mkdir", 1, js_os_mkdir ),
+ JS_CFUNC_DEF("readdir", 1, js_os_readdir ),
+ /* st_mode constants */
+ OS_FLAG(S_IFMT),
+ OS_FLAG(S_IFIFO),
+ OS_FLAG(S_IFCHR),
+ OS_FLAG(S_IFDIR),
+ OS_FLAG(S_IFBLK),
+ OS_FLAG(S_IFREG),
+#if !defined(_WIN32)
+ OS_FLAG(S_IFSOCK),
+ OS_FLAG(S_IFLNK),
+ OS_FLAG(S_ISGID),
+ OS_FLAG(S_ISUID),
+#endif
+ JS_CFUNC_MAGIC_DEF("stat", 1, js_os_stat, 0 ),
+ JS_CFUNC_DEF("utimes", 3, js_os_utimes ),
+ JS_CFUNC_DEF("sleep", 1, js_os_sleep ),
+ JS_CFUNC_DEF("realpath", 1, js_os_realpath ),
+#if !defined(_WIN32)
+ JS_CFUNC_MAGIC_DEF("lstat", 1, js_os_stat, 1 ),
+ JS_CFUNC_DEF("symlink", 2, js_os_symlink ),
+ JS_CFUNC_DEF("readlink", 1, js_os_readlink ),
+ JS_CFUNC_DEF("exec", 1, js_os_exec ),
+ JS_CFUNC_DEF("getpid", 0, js_os_getpid ),
+ JS_CFUNC_DEF("waitpid", 2, js_os_waitpid ),
+ OS_FLAG(WNOHANG),
+ JS_CFUNC_DEF("pipe", 0, js_os_pipe ),
+ JS_CFUNC_DEF("kill", 2, js_os_kill ),
+ JS_CFUNC_DEF("dup", 1, js_os_dup ),
+ JS_CFUNC_DEF("dup2", 2, js_os_dup2 ),
+#endif
+};
+
+static int js_os_init(JSContext *ctx, JSModuleDef *m)
+{
+ os_poll_func = js_os_poll;
+
+#ifdef USE_WORKER
+ {
+ JSRuntime *rt = JS_GetRuntime(ctx);
+ JSThreadState *ts = JS_GetRuntimeOpaque(rt);
+ JSValue proto, obj;
+ /* Worker class */
+ JS_NewClassID(&js_worker_class_id);
+ JS_NewClass(JS_GetRuntime(ctx), js_worker_class_id, &js_worker_class);
+ proto = JS_NewObject(ctx);
+ JS_SetPropertyFunctionList(ctx, proto, js_worker_proto_funcs, countof(js_worker_proto_funcs));
+
+ obj = JS_NewCFunction2(ctx, js_worker_ctor, "Worker", 1,
+ JS_CFUNC_constructor, 0);
+ JS_SetConstructor(ctx, obj, proto);
+
+ JS_SetClassProto(ctx, js_worker_class_id, proto);
+
+ /* set 'Worker.parent' if necessary */
+ if (ts->recv_pipe && ts->send_pipe) {
+ JS_DefinePropertyValueStr(ctx, obj, "parent",
+ js_worker_ctor_internal(ctx, JS_UNDEFINED, ts->recv_pipe, ts->send_pipe),
+ JS_PROP_C_W_E);
+ }
+
+ JS_SetModuleExport(ctx, m, "Worker", obj);
+ }
+#endif /* USE_WORKER */
+
+ return JS_SetModuleExportList(ctx, m, js_os_funcs,
+ countof(js_os_funcs));
+}
+
+JSModuleDef *js_init_module_os(JSContext *ctx, const char *module_name)
+{
+ JSModuleDef *m;
+ m = JS_NewCModule(ctx, module_name, js_os_init);
+ if (!m)
+ return NULL;
+ JS_AddModuleExportList(ctx, m, js_os_funcs, countof(js_os_funcs));
+#ifdef USE_WORKER
+ JS_AddModuleExport(ctx, m, "Worker");
+#endif
+ return m;
+}
+
+/**********************************************************/
+
+static JSValue js_print(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ int i;
+ const char *str;
+ size_t len;
+
+ for(i = 0; i < argc; i++) {
+ if (i != 0)
+ putchar(' ');
+ str = JS_ToCStringLen(ctx, &len, argv[i]);
+ if (!str)
+ return JS_EXCEPTION;
+ fwrite(str, 1, len, stdout);
+ JS_FreeCString(ctx, str);
+ }
+ putchar('\n');
+ return JS_UNDEFINED;
+}
+
+void js_std_add_helpers(JSContext *ctx, int argc, char **argv)
+{
+ JSValue global_obj, console, args;
+ int i;
+
+ /* XXX: should these global definitions be enumerable? */
+ global_obj = JS_GetGlobalObject(ctx);
+
+ console = JS_NewObject(ctx);
+ JS_SetPropertyStr(ctx, console, "log",
+ JS_NewCFunction(ctx, js_print, "log", 1));
+ JS_SetPropertyStr(ctx, global_obj, "console", console);
+
+ /* same methods as the mozilla JS shell */
+ if (argc >= 0) {
+ args = JS_NewArray(ctx);
+ for(i = 0; i < argc; i++) {
+ JS_SetPropertyUint32(ctx, args, i, JS_NewString(ctx, argv[i]));
+ }
+ JS_SetPropertyStr(ctx, global_obj, "scriptArgs", args);
+ }
+
+ JS_SetPropertyStr(ctx, global_obj, "print",
+ JS_NewCFunction(ctx, js_print, "print", 1));
+ JS_SetPropertyStr(ctx, global_obj, "__loadScript",
+ JS_NewCFunction(ctx, js_loadScript, "__loadScript", 1));
+
+ JS_FreeValue(ctx, global_obj);
+}
+
+void js_std_init_handlers(JSRuntime *rt)
+{
+ JSThreadState *ts;
+
+ ts = malloc(sizeof(*ts));
+ if (!ts) {
+ fprintf(stderr, "Could not allocate memory for the worker");
+ exit(1);
+ }
+ memset(ts, 0, sizeof(*ts));
+ init_list_head(&ts->os_rw_handlers);
+ init_list_head(&ts->os_signal_handlers);
+ init_list_head(&ts->os_timers);
+ init_list_head(&ts->port_list);
+ ts->next_timer_id = 1;
+
+ JS_SetRuntimeOpaque(rt, ts);
+
+#ifdef USE_WORKER
+ /* set the SharedArrayBuffer memory handlers */
+ {
+ JSSharedArrayBufferFunctions sf;
+ memset(&sf, 0, sizeof(sf));
+ sf.sab_alloc = js_sab_alloc;
+ sf.sab_free = js_sab_free;
+ sf.sab_dup = js_sab_dup;
+ JS_SetSharedArrayBufferFunctions(rt, &sf);
+ }
+#endif
+}
+
+void js_std_free_handlers(JSRuntime *rt)
+{
+ JSThreadState *ts = JS_GetRuntimeOpaque(rt);
+ struct list_head *el, *el1;
+
+ list_for_each_safe(el, el1, &ts->os_rw_handlers) {
+ JSOSRWHandler *rh = list_entry(el, JSOSRWHandler, link);
+ free_rw_handler(rt, rh);
+ }
+
+ list_for_each_safe(el, el1, &ts->os_signal_handlers) {
+ JSOSSignalHandler *sh = list_entry(el, JSOSSignalHandler, link);
+ free_sh(rt, sh);
+ }
+
+ list_for_each_safe(el, el1, &ts->os_timers) {
+ JSOSTimer *th = list_entry(el, JSOSTimer, link);
+ free_timer(rt, th);
+ }
+
+#ifdef USE_WORKER
+ /* XXX: free port_list ? */
+ js_free_message_pipe(ts->recv_pipe);
+ js_free_message_pipe(ts->send_pipe);
+#endif
+
+ free(ts);
+ JS_SetRuntimeOpaque(rt, NULL); /* fail safe */
+}
+
+static void js_dump_obj(JSContext *ctx, FILE *f, JSValueConst val)
+{
+ const char *str;
+
+ str = JS_ToCString(ctx, val);
+ if (str) {
+ fprintf(f, "%s\n", str);
+ JS_FreeCString(ctx, str);
+ } else {
+ fprintf(f, "[exception]\n");
+ }
+}
+
+static void js_std_dump_error1(JSContext *ctx, JSValueConst exception_val)
+{
+ JSValue val;
+ BOOL is_error;
+
+ is_error = JS_IsError(ctx, exception_val);
+ js_dump_obj(ctx, stderr, exception_val);
+ if (is_error) {
+ val = JS_GetPropertyStr(ctx, exception_val, "stack");
+ if (!JS_IsUndefined(val)) {
+ js_dump_obj(ctx, stderr, val);
+ }
+ JS_FreeValue(ctx, val);
+ }
+}
+
+void js_std_dump_error(JSContext *ctx)
+{
+ JSValue exception_val;
+
+ exception_val = JS_GetException(ctx);
+ js_std_dump_error1(ctx, exception_val);
+ JS_FreeValue(ctx, exception_val);
+}
+
+void js_std_promise_rejection_tracker(JSContext *ctx, JSValueConst promise,
+ JSValueConst reason,
+ BOOL is_handled, void *opaque)
+{
+ if (!is_handled) {
+ fprintf(stderr, "Possibly unhandled promise rejection: ");
+ js_std_dump_error1(ctx, reason);
+ }
+}
+
+/* main loop which calls the user JS callbacks */
+void js_std_loop(JSContext *ctx)
+{
+ JSContext *ctx1;
+ int err;
+
+ for(;;) {
+ /* execute the pending jobs */
+ for(;;) {
+ err = JS_ExecutePendingJob(JS_GetRuntime(ctx), &ctx1);
+ if (err <= 0) {
+ if (err < 0) {
+ js_std_dump_error(ctx1);
+ }
+ break;
+ }
+ }
+
+ if (!os_poll_func || os_poll_func(ctx))
+ break;
+ }
+}
+
+/* Wait for a promise and execute pending jobs while waiting for
+ it. Return the promise result or JS_EXCEPTION in case of promise
+ rejection. */
+JSValue js_std_await(JSContext *ctx, JSValue obj)
+{
+ JSValue ret;
+ int state;
+
+ for(;;) {
+ state = JS_PromiseState(ctx, obj);
+ if (state == JS_PROMISE_FULFILLED) {
+ ret = JS_PromiseResult(ctx, obj);
+ JS_FreeValue(ctx, obj);
+ break;
+ } else if (state == JS_PROMISE_REJECTED) {
+ ret = JS_Throw(ctx, JS_PromiseResult(ctx, obj));
+ JS_FreeValue(ctx, obj);
+ break;
+ } else if (state == JS_PROMISE_PENDING) {
+ JSContext *ctx1;
+ int err;
+ err = JS_ExecutePendingJob(JS_GetRuntime(ctx), &ctx1);
+ if (err < 0) {
+ js_std_dump_error(ctx1);
+ }
+ if (os_poll_func)
+ os_poll_func(ctx);
+ } else {
+ /* not a promise */
+ ret = obj;
+ break;
+ }
+ }
+ return ret;
+}
+
+void js_std_eval_binary(JSContext *ctx, const uint8_t *buf, size_t buf_len,
+ int load_only)
+{
+ JSValue obj, val;
+ obj = JS_ReadObject(ctx, buf, buf_len, JS_READ_OBJ_BYTECODE);
+ if (JS_IsException(obj))
+ goto exception;
+ if (load_only) {
+ if (JS_VALUE_GET_TAG(obj) == JS_TAG_MODULE) {
+ js_module_set_import_meta(ctx, obj, FALSE, FALSE);
+ }
+ } else {
+ if (JS_VALUE_GET_TAG(obj) == JS_TAG_MODULE) {
+ if (JS_ResolveModule(ctx, obj) < 0) {
+ JS_FreeValue(ctx, obj);
+ goto exception;
+ }
+ js_module_set_import_meta(ctx, obj, FALSE, TRUE);
+ val = JS_EvalFunction(ctx, obj);
+ val = js_std_await(ctx, val);
+ } else {
+ val = JS_EvalFunction(ctx, obj);
+ }
+ if (JS_IsException(val)) {
+ exception:
+ js_std_dump_error(ctx);
+ exit(1);
+ }
+ JS_FreeValue(ctx, val);
+ }
+}
diff --git a/src/couch_quickjs/quickjs/quickjs-libc.h b/src/couch_quickjs/quickjs/quickjs-libc.h
new file mode 100644
index 0000000..850484f
--- /dev/null
+++ b/src/couch_quickjs/quickjs/quickjs-libc.h
@@ -0,0 +1,60 @@
+/*
+ * QuickJS C library
+ *
+ * Copyright (c) 2017-2018 Fabrice Bellard
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+#ifndef QUICKJS_LIBC_H
+#define QUICKJS_LIBC_H
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "quickjs.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+JSModuleDef *js_init_module_std(JSContext *ctx, const char *module_name);
+JSModuleDef *js_init_module_os(JSContext *ctx, const char *module_name);
+void js_std_add_helpers(JSContext *ctx, int argc, char **argv);
+void js_std_loop(JSContext *ctx);
+JSValue js_std_await(JSContext *ctx, JSValue obj);
+void js_std_init_handlers(JSRuntime *rt);
+void js_std_free_handlers(JSRuntime *rt);
+void js_std_dump_error(JSContext *ctx);
+uint8_t *js_load_file(JSContext *ctx, size_t *pbuf_len, const char *filename);
+int js_module_set_import_meta(JSContext *ctx, JSValueConst func_val,
+ JS_BOOL use_realpath, JS_BOOL is_main);
+JSModuleDef *js_module_loader(JSContext *ctx,
+ const char *module_name, void *opaque);
+void js_std_eval_binary(JSContext *ctx, const uint8_t *buf, size_t buf_len,
+ int flags);
+void js_std_promise_rejection_tracker(JSContext *ctx, JSValueConst promise,
+ JSValueConst reason,
+ JS_BOOL is_handled, void *opaque);
+void js_std_set_worker_new_context_func(JSContext *(*func)(JSRuntime *rt));
+
+#ifdef __cplusplus
+} /* extern "C" { */
+#endif
+
+#endif /* QUICKJS_LIBC_H */
diff --git a/src/couch_quickjs/quickjs/quickjs-opcode.h b/src/couch_quickjs/quickjs/quickjs-opcode.h
new file mode 100644
index 0000000..1e18212
--- /dev/null
+++ b/src/couch_quickjs/quickjs/quickjs-opcode.h
@@ -0,0 +1,372 @@
+/*
+ * QuickJS opcode definitions
+ *
+ * Copyright (c) 2017-2018 Fabrice Bellard
+ * Copyright (c) 2017-2018 Charlie Gordon
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifdef FMT
+FMT(none)
+FMT(none_int)
+FMT(none_loc)
+FMT(none_arg)
+FMT(none_var_ref)
+FMT(u8)
+FMT(i8)
+FMT(loc8)
+FMT(const8)
+FMT(label8)
+FMT(u16)
+FMT(i16)
+FMT(label16)
+FMT(npop)
+FMT(npopx)
+FMT(npop_u16)
+FMT(loc)
+FMT(arg)
+FMT(var_ref)
+FMT(u32)
+FMT(i32)
+FMT(const)
+FMT(label)
+FMT(atom)
+FMT(atom_u8)
+FMT(atom_u16)
+FMT(atom_label_u8)
+FMT(atom_label_u16)
+FMT(label_u16)
+#undef FMT
+#endif /* FMT */
+
+#ifdef DEF
+
+#ifndef def
+#define def(id, size, n_pop, n_push, f) DEF(id, size, n_pop, n_push, f)
+#endif
+
+DEF(invalid, 1, 0, 0, none) /* never emitted */
+
+/* push values */
+DEF( push_i32, 5, 0, 1, i32)
+DEF( push_const, 5, 0, 1, const)
+DEF( fclosure, 5, 0, 1, const) /* must follow push_const */
+DEF(push_atom_value, 5, 0, 1, atom)
+DEF( private_symbol, 5, 0, 1, atom)
+DEF( undefined, 1, 0, 1, none)
+DEF( null, 1, 0, 1, none)
+DEF( push_this, 1, 0, 1, none) /* only used at the start of a function */
+DEF( push_false, 1, 0, 1, none)
+DEF( push_true, 1, 0, 1, none)
+DEF( object, 1, 0, 1, none)
+DEF( special_object, 2, 0, 1, u8) /* only used at the start of a function */
+DEF( rest, 3, 0, 1, u16) /* only used at the start of a function */
+
+DEF( drop, 1, 1, 0, none) /* a -> */
+DEF( nip, 1, 2, 1, none) /* a b -> b */
+DEF( nip1, 1, 3, 2, none) /* a b c -> b c */
+DEF( dup, 1, 1, 2, none) /* a -> a a */
+DEF( dup1, 1, 2, 3, none) /* a b -> a a b */
+DEF( dup2, 1, 2, 4, none) /* a b -> a b a b */
+DEF( dup3, 1, 3, 6, none) /* a b c -> a b c a b c */
+DEF( insert2, 1, 2, 3, none) /* obj a -> a obj a (dup_x1) */
+DEF( insert3, 1, 3, 4, none) /* obj prop a -> a obj prop a (dup_x2) */
+DEF( insert4, 1, 4, 5, none) /* this obj prop a -> a this obj prop a */
+DEF( perm3, 1, 3, 3, none) /* obj a b -> a obj b */
+DEF( perm4, 1, 4, 4, none) /* obj prop a b -> a obj prop b */
+DEF( perm5, 1, 5, 5, none) /* this obj prop a b -> a this obj prop b */
+DEF( swap, 1, 2, 2, none) /* a b -> b a */
+DEF( swap2, 1, 4, 4, none) /* a b c d -> c d a b */
+DEF( rot3l, 1, 3, 3, none) /* x a b -> a b x */
+DEF( rot3r, 1, 3, 3, none) /* a b x -> x a b */
+DEF( rot4l, 1, 4, 4, none) /* x a b c -> a b c x */
+DEF( rot5l, 1, 5, 5, none) /* x a b c d -> a b c d x */
+
+DEF(call_constructor, 3, 2, 1, npop) /* func new.target args -> ret. arguments are not counted in n_pop */
+DEF( call, 3, 1, 1, npop) /* arguments are not counted in n_pop */
+DEF( tail_call, 3, 1, 0, npop) /* arguments are not counted in n_pop */
+DEF( call_method, 3, 2, 1, npop) /* arguments are not counted in n_pop */
+DEF(tail_call_method, 3, 2, 0, npop) /* arguments are not counted in n_pop */
+DEF( array_from, 3, 0, 1, npop) /* arguments are not counted in n_pop */
+DEF( apply, 3, 3, 1, u16)
+DEF( return, 1, 1, 0, none)
+DEF( return_undef, 1, 0, 0, none)
+DEF(check_ctor_return, 1, 1, 2, none)
+DEF( check_ctor, 1, 0, 0, none)
+DEF( check_brand, 1, 2, 2, none) /* this_obj func -> this_obj func */
+DEF( add_brand, 1, 2, 0, none) /* this_obj home_obj -> */
+DEF( return_async, 1, 1, 0, none)
+DEF( throw, 1, 1, 0, none)
+DEF( throw_error, 6, 0, 0, atom_u8)
+DEF( eval, 5, 1, 1, npop_u16) /* func args... -> ret_val */
+DEF( apply_eval, 3, 2, 1, u16) /* func array -> ret_eval */
+DEF( regexp, 1, 2, 1, none) /* create a RegExp object from the pattern and a
+ bytecode string */
+DEF( get_super, 1, 1, 1, none)
+DEF( import, 1, 1, 1, none) /* dynamic module import */
+
+DEF( check_var, 5, 0, 1, atom) /* check if a variable exists */
+DEF( get_var_undef, 5, 0, 1, atom) /* push undefined if the variable does not exist */
+DEF( get_var, 5, 0, 1, atom) /* throw an exception if the variable does not exist */
+DEF( put_var, 5, 1, 0, atom) /* must come after get_var */
+DEF( put_var_init, 5, 1, 0, atom) /* must come after put_var. Used to initialize a global lexical variable */
+DEF( put_var_strict, 5, 2, 0, atom) /* for strict mode variable write */
+
+DEF( get_ref_value, 1, 2, 3, none)
+DEF( put_ref_value, 1, 3, 0, none)
+
+DEF( define_var, 6, 0, 0, atom_u8)
+DEF(check_define_var, 6, 0, 0, atom_u8)
+DEF( define_func, 6, 1, 0, atom_u8)
+DEF( get_field, 5, 1, 1, atom)
+DEF( get_field2, 5, 1, 2, atom)
+DEF( put_field, 5, 2, 0, atom)
+DEF( get_private_field, 1, 2, 1, none) /* obj prop -> value */
+DEF( put_private_field, 1, 3, 0, none) /* obj value prop -> */
+DEF(define_private_field, 1, 3, 1, none) /* obj prop value -> obj */
+DEF( get_array_el, 1, 2, 1, none)
+DEF( get_array_el2, 1, 2, 2, none) /* obj prop -> obj value */
+DEF( put_array_el, 1, 3, 0, none)
+DEF(get_super_value, 1, 3, 1, none) /* this obj prop -> value */
+DEF(put_super_value, 1, 4, 0, none) /* this obj prop value -> */
+DEF( define_field, 5, 2, 1, atom)
+DEF( set_name, 5, 1, 1, atom)
+DEF(set_name_computed, 1, 2, 2, none)
+DEF( set_proto, 1, 2, 1, none)
+DEF(set_home_object, 1, 2, 2, none)
+DEF(define_array_el, 1, 3, 2, none)
+DEF( append, 1, 3, 2, none) /* append enumerated object, update length */
+DEF(copy_data_properties, 2, 3, 3, u8)
+DEF( define_method, 6, 2, 1, atom_u8)
+DEF(define_method_computed, 2, 3, 1, u8) /* must come after define_method */
+DEF( define_class, 6, 2, 2, atom_u8) /* parent ctor -> ctor proto */
+DEF( define_class_computed, 6, 3, 3, atom_u8) /* field_name parent ctor -> field_name ctor proto (class with computed name) */
+
+DEF( get_loc, 3, 0, 1, loc)
+DEF( put_loc, 3, 1, 0, loc) /* must come after get_loc */
+DEF( set_loc, 3, 1, 1, loc) /* must come after put_loc */
+DEF( get_arg, 3, 0, 1, arg)
+DEF( put_arg, 3, 1, 0, arg) /* must come after get_arg */
+DEF( set_arg, 3, 1, 1, arg) /* must come after put_arg */
+DEF( get_var_ref, 3, 0, 1, var_ref)
+DEF( put_var_ref, 3, 1, 0, var_ref) /* must come after get_var_ref */
+DEF( set_var_ref, 3, 1, 1, var_ref) /* must come after put_var_ref */
+DEF(set_loc_uninitialized, 3, 0, 0, loc)
+DEF( get_loc_check, 3, 0, 1, loc)
+DEF( put_loc_check, 3, 1, 0, loc) /* must come after get_loc_check */
+DEF( put_loc_check_init, 3, 1, 0, loc)
+DEF(get_loc_checkthis, 3, 0, 1, loc)
+DEF(get_var_ref_check, 3, 0, 1, var_ref)
+DEF(put_var_ref_check, 3, 1, 0, var_ref) /* must come after get_var_ref_check */
+DEF(put_var_ref_check_init, 3, 1, 0, var_ref)
+DEF( close_loc, 3, 0, 0, loc)
+DEF( if_false, 5, 1, 0, label)
+DEF( if_true, 5, 1, 0, label) /* must come after if_false */
+DEF( goto, 5, 0, 0, label) /* must come after if_true */
+DEF( catch, 5, 0, 1, label)
+DEF( gosub, 5, 0, 0, label) /* used to execute the finally block */
+DEF( ret, 1, 1, 0, none) /* used to return from the finally block */
+DEF( nip_catch, 1, 2, 1, none) /* catch ... a -> a */
+
+DEF( to_object, 1, 1, 1, none)
+//DEF( to_string, 1, 1, 1, none)
+DEF( to_propkey, 1, 1, 1, none)
+DEF( to_propkey2, 1, 2, 2, none)
+
+DEF( with_get_var, 10, 1, 0, atom_label_u8) /* must be in the same order as scope_xxx */
+DEF( with_put_var, 10, 2, 1, atom_label_u8) /* must be in the same order as scope_xxx */
+DEF(with_delete_var, 10, 1, 0, atom_label_u8) /* must be in the same order as scope_xxx */
+DEF( with_make_ref, 10, 1, 0, atom_label_u8) /* must be in the same order as scope_xxx */
+DEF( with_get_ref, 10, 1, 0, atom_label_u8) /* must be in the same order as scope_xxx */
+DEF(with_get_ref_undef, 10, 1, 0, atom_label_u8)
+
+DEF( make_loc_ref, 7, 0, 2, atom_u16)
+DEF( make_arg_ref, 7, 0, 2, atom_u16)
+DEF(make_var_ref_ref, 7, 0, 2, atom_u16)
+DEF( make_var_ref, 5, 0, 2, atom)
+
+DEF( for_in_start, 1, 1, 1, none)
+DEF( for_of_start, 1, 1, 3, none)
+DEF(for_await_of_start, 1, 1, 3, none)
+DEF( for_in_next, 1, 1, 3, none)
+DEF( for_of_next, 2, 3, 5, u8)
+DEF(iterator_check_object, 1, 1, 1, none)
+DEF(iterator_get_value_done, 1, 1, 2, none)
+DEF( iterator_close, 1, 3, 0, none)
+DEF( iterator_next, 1, 4, 4, none)
+DEF( iterator_call, 2, 4, 5, u8)
+DEF( initial_yield, 1, 0, 0, none)
+DEF( yield, 1, 1, 2, none)
+DEF( yield_star, 1, 1, 2, none)
+DEF(async_yield_star, 1, 1, 2, none)
+DEF( await, 1, 1, 1, none)
+
+/* arithmetic/logic operations */
+DEF( neg, 1, 1, 1, none)
+DEF( plus, 1, 1, 1, none)
+DEF( dec, 1, 1, 1, none)
+DEF( inc, 1, 1, 1, none)
+DEF( post_dec, 1, 1, 2, none)
+DEF( post_inc, 1, 1, 2, none)
+DEF( dec_loc, 2, 0, 0, loc8)
+DEF( inc_loc, 2, 0, 0, loc8)
+DEF( add_loc, 2, 1, 0, loc8)
+DEF( not, 1, 1, 1, none)
+DEF( lnot, 1, 1, 1, none)
+DEF( typeof, 1, 1, 1, none)
+DEF( delete, 1, 2, 1, none)
+DEF( delete_var, 5, 0, 1, atom)
+
+DEF( mul, 1, 2, 1, none)
+DEF( div, 1, 2, 1, none)
+DEF( mod, 1, 2, 1, none)
+DEF( add, 1, 2, 1, none)
+DEF( sub, 1, 2, 1, none)
+DEF( pow, 1, 2, 1, none)
+DEF( shl, 1, 2, 1, none)
+DEF( sar, 1, 2, 1, none)
+DEF( shr, 1, 2, 1, none)
+DEF( lt, 1, 2, 1, none)
+DEF( lte, 1, 2, 1, none)
+DEF( gt, 1, 2, 1, none)
+DEF( gte, 1, 2, 1, none)
+DEF( instanceof, 1, 2, 1, none)
+DEF( in, 1, 2, 1, none)
+DEF( eq, 1, 2, 1, none)
+DEF( neq, 1, 2, 1, none)
+DEF( strict_eq, 1, 2, 1, none)
+DEF( strict_neq, 1, 2, 1, none)
+DEF( and, 1, 2, 1, none)
+DEF( xor, 1, 2, 1, none)
+DEF( or, 1, 2, 1, none)
+DEF(is_undefined_or_null, 1, 1, 1, none)
+DEF( private_in, 1, 2, 1, none)
+#ifdef CONFIG_BIGNUM
+DEF( mul_pow10, 1, 2, 1, none)
+DEF( math_mod, 1, 2, 1, none)
+#endif
+/* must be the last non short and non temporary opcode */
+DEF( nop, 1, 0, 0, none)
+
+/* temporary opcodes: never emitted in the final bytecode */
+
+def( enter_scope, 3, 0, 0, u16) /* emitted in phase 1, removed in phase 2 */
+def( leave_scope, 3, 0, 0, u16) /* emitted in phase 1, removed in phase 2 */
+
+def( label, 5, 0, 0, label) /* emitted in phase 1, removed in phase 3 */
+
+/* the following opcodes must be in the same order as the 'with_x' and
+ get_var_undef, get_var and put_var opcodes */
+def(scope_get_var_undef, 7, 0, 1, atom_u16) /* emitted in phase 1, removed in phase 2 */
+def( scope_get_var, 7, 0, 1, atom_u16) /* emitted in phase 1, removed in phase 2 */
+def( scope_put_var, 7, 1, 0, atom_u16) /* emitted in phase 1, removed in phase 2 */
+def(scope_delete_var, 7, 0, 1, atom_u16) /* emitted in phase 1, removed in phase 2 */
+def( scope_make_ref, 11, 0, 2, atom_label_u16) /* emitted in phase 1, removed in phase 2 */
+def( scope_get_ref, 7, 0, 2, atom_u16) /* emitted in phase 1, removed in phase 2 */
+def(scope_put_var_init, 7, 0, 2, atom_u16) /* emitted in phase 1, removed in phase 2 */
+def(scope_get_var_checkthis, 7, 0, 1, atom_u16) /* emitted in phase 1, removed in phase 2, only used to return 'this' in derived class constructors */
+def(scope_get_private_field, 7, 1, 1, atom_u16) /* obj -> value, emitted in phase 1, removed in phase 2 */
+def(scope_get_private_field2, 7, 1, 2, atom_u16) /* obj -> obj value, emitted in phase 1, removed in phase 2 */
+def(scope_put_private_field, 7, 2, 0, atom_u16) /* obj value ->, emitted in phase 1, removed in phase 2 */
+def(scope_in_private_field, 7, 1, 1, atom_u16) /* obj -> res emitted in phase 1, removed in phase 2 */
+def(get_field_opt_chain, 5, 1, 1, atom) /* emitted in phase 1, removed in phase 2 */
+def(get_array_el_opt_chain, 1, 2, 1, none) /* emitted in phase 1, removed in phase 2 */
+def( set_class_name, 5, 1, 1, u32) /* emitted in phase 1, removed in phase 2 */
+
+def( line_num, 5, 0, 0, u32) /* emitted in phase 1, removed in phase 3 */
+
+#if SHORT_OPCODES
+DEF( push_minus1, 1, 0, 1, none_int)
+DEF( push_0, 1, 0, 1, none_int)
+DEF( push_1, 1, 0, 1, none_int)
+DEF( push_2, 1, 0, 1, none_int)
+DEF( push_3, 1, 0, 1, none_int)
+DEF( push_4, 1, 0, 1, none_int)
+DEF( push_5, 1, 0, 1, none_int)
+DEF( push_6, 1, 0, 1, none_int)
+DEF( push_7, 1, 0, 1, none_int)
+DEF( push_i8, 2, 0, 1, i8)
+DEF( push_i16, 3, 0, 1, i16)
+DEF( push_const8, 2, 0, 1, const8)
+DEF( fclosure8, 2, 0, 1, const8) /* must follow push_const8 */
+DEF(push_empty_string, 1, 0, 1, none)
+
+DEF( get_loc8, 2, 0, 1, loc8)
+DEF( put_loc8, 2, 1, 0, loc8)
+DEF( set_loc8, 2, 1, 1, loc8)
+
+DEF( get_loc0, 1, 0, 1, none_loc)
+DEF( get_loc1, 1, 0, 1, none_loc)
+DEF( get_loc2, 1, 0, 1, none_loc)
+DEF( get_loc3, 1, 0, 1, none_loc)
+DEF( put_loc0, 1, 1, 0, none_loc)
+DEF( put_loc1, 1, 1, 0, none_loc)
+DEF( put_loc2, 1, 1, 0, none_loc)
+DEF( put_loc3, 1, 1, 0, none_loc)
+DEF( set_loc0, 1, 1, 1, none_loc)
+DEF( set_loc1, 1, 1, 1, none_loc)
+DEF( set_loc2, 1, 1, 1, none_loc)
+DEF( set_loc3, 1, 1, 1, none_loc)
+DEF( get_arg0, 1, 0, 1, none_arg)
+DEF( get_arg1, 1, 0, 1, none_arg)
+DEF( get_arg2, 1, 0, 1, none_arg)
+DEF( get_arg3, 1, 0, 1, none_arg)
+DEF( put_arg0, 1, 1, 0, none_arg)
+DEF( put_arg1, 1, 1, 0, none_arg)
+DEF( put_arg2, 1, 1, 0, none_arg)
+DEF( put_arg3, 1, 1, 0, none_arg)
+DEF( set_arg0, 1, 1, 1, none_arg)
+DEF( set_arg1, 1, 1, 1, none_arg)
+DEF( set_arg2, 1, 1, 1, none_arg)
+DEF( set_arg3, 1, 1, 1, none_arg)
+DEF( get_var_ref0, 1, 0, 1, none_var_ref)
+DEF( get_var_ref1, 1, 0, 1, none_var_ref)
+DEF( get_var_ref2, 1, 0, 1, none_var_ref)
+DEF( get_var_ref3, 1, 0, 1, none_var_ref)
+DEF( put_var_ref0, 1, 1, 0, none_var_ref)
+DEF( put_var_ref1, 1, 1, 0, none_var_ref)
+DEF( put_var_ref2, 1, 1, 0, none_var_ref)
+DEF( put_var_ref3, 1, 1, 0, none_var_ref)
+DEF( set_var_ref0, 1, 1, 1, none_var_ref)
+DEF( set_var_ref1, 1, 1, 1, none_var_ref)
+DEF( set_var_ref2, 1, 1, 1, none_var_ref)
+DEF( set_var_ref3, 1, 1, 1, none_var_ref)
+
+DEF( get_length, 1, 1, 1, none)
+
+DEF( if_false8, 2, 1, 0, label8)
+DEF( if_true8, 2, 1, 0, label8) /* must come after if_false8 */
+DEF( goto8, 2, 0, 0, label8) /* must come after if_true8 */
+DEF( goto16, 3, 0, 0, label16)
+
+DEF( call0, 1, 1, 1, npopx)
+DEF( call1, 1, 1, 1, npopx)
+DEF( call2, 1, 1, 1, npopx)
+DEF( call3, 1, 1, 1, npopx)
+
+DEF( is_undefined, 1, 1, 1, none)
+DEF( is_null, 1, 1, 1, none)
+DEF(typeof_is_undefined, 1, 1, 1, none)
+DEF( typeof_is_function, 1, 1, 1, none)
+#endif
+
+#undef DEF
+#undef def
+#endif /* DEF */
diff --git a/src/couch_quickjs/quickjs/quickjs.c b/src/couch_quickjs/quickjs/quickjs.c
new file mode 100644
index 0000000..24a24ca
--- /dev/null
+++ b/src/couch_quickjs/quickjs/quickjs.c
@@ -0,0 +1,55946 @@
+/*
+ * QuickJS Javascript Engine
+ *
+ * Copyright (c) 2017-2021 Fabrice Bellard
+ * Copyright (c) 2017-2021 Charlie Gordon
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdarg.h>
+#include <inttypes.h>
+#include <string.h>
+#include <assert.h>
+#include <sys/time.h>
+#include <time.h>
+#include <fenv.h>
+#include <math.h>
+#if defined(__APPLE__)
+#include <malloc/malloc.h>
+#elif defined(__linux__)
+#include <malloc.h>
+#elif defined(__FreeBSD__)
+#include <malloc_np.h>
+#endif
+
+#include "cutils.h"
+#include "list.h"
+#include "quickjs.h"
+#include "libregexp.h"
+#include "libunicode.h"
+#include "libbf.h"
+
+#define OPTIMIZE 1
+#define SHORT_OPCODES 1
+#if defined(EMSCRIPTEN)
+#define DIRECT_DISPATCH 0
+#else
+#define DIRECT_DISPATCH 1
+#endif
+
+#if defined(__APPLE__)
+#define MALLOC_OVERHEAD 0
+#else
+#define MALLOC_OVERHEAD 8
+#endif
+
+#if !defined(_WIN32)
+/* define it if printf uses the RNDN rounding mode instead of RNDNA */
+#define CONFIG_PRINTF_RNDN
+#endif
+
+/* define to include Atomics.* operations which depend on the OS
+ threads */
+#if !defined(EMSCRIPTEN)
+#define CONFIG_ATOMICS
+#endif
+
+#if !defined(EMSCRIPTEN)
+/* enable stack limitation */
+#define CONFIG_STACK_CHECK
+#endif
+
+
+/* dump object free */
+//#define DUMP_FREE
+//#define DUMP_CLOSURE
+/* dump the bytecode of the compiled functions: combination of bits
+ 1: dump pass 3 final byte code
+ 2: dump pass 2 code
+ 4: dump pass 1 code
+ 8: dump stdlib functions
+ 16: dump bytecode in hex
+ 32: dump line number table
+ 64: dump compute_stack_size
+ */
+//#define DUMP_BYTECODE (1)
+/* dump the occurence of the automatic GC */
+//#define DUMP_GC
+/* dump objects freed by the garbage collector */
+//#define DUMP_GC_FREE
+/* dump objects leaking when freeing the runtime */
+//#define DUMP_LEAKS 1
+/* dump memory usage before running the garbage collector */
+//#define DUMP_MEM
+//#define DUMP_OBJECTS /* dump objects in JS_FreeContext */
+//#define DUMP_ATOMS /* dump atoms in JS_FreeContext */
+//#define DUMP_SHAPES /* dump shapes in JS_FreeContext */
+//#define DUMP_MODULE_RESOLVE
+//#define DUMP_PROMISE
+//#define DUMP_READ_OBJECT
+
+/* test the GC by forcing it before each object allocation */
+//#define FORCE_GC_AT_MALLOC
+
+#ifdef CONFIG_ATOMICS
+#include <pthread.h>
+#include <stdatomic.h>
+#include <errno.h>
+#endif
+
+enum {
+ /* classid tag */ /* union usage | properties */
+ JS_CLASS_OBJECT = 1, /* must be first */
+ JS_CLASS_ARRAY, /* u.array | length */
+ JS_CLASS_ERROR,
+ JS_CLASS_NUMBER, /* u.object_data */
+ JS_CLASS_STRING, /* u.object_data */
+ JS_CLASS_BOOLEAN, /* u.object_data */
+ JS_CLASS_SYMBOL, /* u.object_data */
+ JS_CLASS_ARGUMENTS, /* u.array | length */
+ JS_CLASS_MAPPED_ARGUMENTS, /* | length */
+ JS_CLASS_DATE, /* u.object_data */
+ JS_CLASS_MODULE_NS,
+ JS_CLASS_C_FUNCTION, /* u.cfunc */
+ JS_CLASS_BYTECODE_FUNCTION, /* u.func */
+ JS_CLASS_BOUND_FUNCTION, /* u.bound_function */
+ JS_CLASS_C_FUNCTION_DATA, /* u.c_function_data_record */
+ JS_CLASS_GENERATOR_FUNCTION, /* u.func */
+ JS_CLASS_FOR_IN_ITERATOR, /* u.for_in_iterator */
+ JS_CLASS_REGEXP, /* u.regexp */
+ JS_CLASS_ARRAY_BUFFER, /* u.array_buffer */
+ JS_CLASS_SHARED_ARRAY_BUFFER, /* u.array_buffer */
+ JS_CLASS_UINT8C_ARRAY, /* u.array (typed_array) */
+ JS_CLASS_INT8_ARRAY, /* u.array (typed_array) */
+ JS_CLASS_UINT8_ARRAY, /* u.array (typed_array) */
+ JS_CLASS_INT16_ARRAY, /* u.array (typed_array) */
+ JS_CLASS_UINT16_ARRAY, /* u.array (typed_array) */
+ JS_CLASS_INT32_ARRAY, /* u.array (typed_array) */
+ JS_CLASS_UINT32_ARRAY, /* u.array (typed_array) */
+ JS_CLASS_BIG_INT64_ARRAY, /* u.array (typed_array) */
+ JS_CLASS_BIG_UINT64_ARRAY, /* u.array (typed_array) */
+ JS_CLASS_FLOAT32_ARRAY, /* u.array (typed_array) */
+ JS_CLASS_FLOAT64_ARRAY, /* u.array (typed_array) */
+ JS_CLASS_DATAVIEW, /* u.typed_array */
+ JS_CLASS_BIG_INT, /* u.object_data */
+#ifdef CONFIG_BIGNUM
+ JS_CLASS_BIG_FLOAT, /* u.object_data */
+ JS_CLASS_FLOAT_ENV, /* u.float_env */
+ JS_CLASS_BIG_DECIMAL, /* u.object_data */
+ JS_CLASS_OPERATOR_SET, /* u.operator_set */
+#endif
+ JS_CLASS_MAP, /* u.map_state */
+ JS_CLASS_SET, /* u.map_state */
+ JS_CLASS_WEAKMAP, /* u.map_state */
+ JS_CLASS_WEAKSET, /* u.map_state */
+ JS_CLASS_MAP_ITERATOR, /* u.map_iterator_data */
+ JS_CLASS_SET_ITERATOR, /* u.map_iterator_data */
+ JS_CLASS_ARRAY_ITERATOR, /* u.array_iterator_data */
+ JS_CLASS_STRING_ITERATOR, /* u.array_iterator_data */
+ JS_CLASS_REGEXP_STRING_ITERATOR, /* u.regexp_string_iterator_data */
+ JS_CLASS_GENERATOR, /* u.generator_data */
+ JS_CLASS_PROXY, /* u.proxy_data */
+ JS_CLASS_PROMISE, /* u.promise_data */
+ JS_CLASS_PROMISE_RESOLVE_FUNCTION, /* u.promise_function_data */
+ JS_CLASS_PROMISE_REJECT_FUNCTION, /* u.promise_function_data */
+ JS_CLASS_ASYNC_FUNCTION, /* u.func */
+ JS_CLASS_ASYNC_FUNCTION_RESOLVE, /* u.async_function_data */
+ JS_CLASS_ASYNC_FUNCTION_REJECT, /* u.async_function_data */
+ JS_CLASS_ASYNC_FROM_SYNC_ITERATOR, /* u.async_from_sync_iterator_data */
+ JS_CLASS_ASYNC_GENERATOR_FUNCTION, /* u.func */
+ JS_CLASS_ASYNC_GENERATOR, /* u.async_generator_data */
+
+ JS_CLASS_INIT_COUNT, /* last entry for predefined classes */
+};
+
+/* number of typed array types */
+#define JS_TYPED_ARRAY_COUNT (JS_CLASS_FLOAT64_ARRAY - JS_CLASS_UINT8C_ARRAY + 1)
+static uint8_t const typed_array_size_log2[JS_TYPED_ARRAY_COUNT];
+#define typed_array_size_log2(classid) (typed_array_size_log2[(classid)- JS_CLASS_UINT8C_ARRAY])
+
+typedef enum JSErrorEnum {
+ JS_EVAL_ERROR,
+ JS_RANGE_ERROR,
+ JS_REFERENCE_ERROR,
+ JS_SYNTAX_ERROR,
+ JS_TYPE_ERROR,
+ JS_URI_ERROR,
+ JS_INTERNAL_ERROR,
+ JS_AGGREGATE_ERROR,
+
+ JS_NATIVE_ERROR_COUNT, /* number of different NativeError objects */
+} JSErrorEnum;
+
+#define JS_MAX_LOCAL_VARS 65535
+#define JS_STACK_SIZE_MAX 65534
+#define JS_STRING_LEN_MAX ((1 << 30) - 1)
+
+#define __exception __attribute__((warn_unused_result))
+
+typedef struct JSShape JSShape;
+typedef struct JSString JSString;
+typedef struct JSString JSAtomStruct;
+
+typedef enum {
+ JS_GC_PHASE_NONE,
+ JS_GC_PHASE_DECREF,
+ JS_GC_PHASE_REMOVE_CYCLES,
+} JSGCPhaseEnum;
+
+typedef enum OPCodeEnum OPCodeEnum;
+
+/* function pointers are used for numeric operations so that it is
+ possible to remove some numeric types */
+typedef struct {
+ JSValue (*to_string)(JSContext *ctx, JSValueConst val);
+ JSValue (*from_string)(JSContext *ctx, const char *buf,
+ int radix, int flags, slimb_t *pexponent);
+ int (*unary_arith)(JSContext *ctx,
+ JSValue *pres, OPCodeEnum op, JSValue op1);
+ int (*binary_arith)(JSContext *ctx, OPCodeEnum op,
+ JSValue *pres, JSValue op1, JSValue op2);
+ int (*compare)(JSContext *ctx, OPCodeEnum op,
+ JSValue op1, JSValue op2);
+ /* only for bigfloat: */
+ JSValue (*mul_pow10_to_float64)(JSContext *ctx, const bf_t *a,
+ int64_t exponent);
+ int (*mul_pow10)(JSContext *ctx, JSValue *sp);
+} JSNumericOperations;
+
+struct JSRuntime {
+ JSMallocFunctions mf;
+ JSMallocState malloc_state;
+ const char *rt_info;
+
+ int atom_hash_size; /* power of two */
+ int atom_count;
+ int atom_size;
+ int atom_count_resize; /* resize hash table at this count */
+ uint32_t *atom_hash;
+ JSAtomStruct **atom_array;
+ int atom_free_index; /* 0 = none */
+
+ int class_count; /* size of class_array */
+ JSClass *class_array;
+
+ struct list_head context_list; /* list of JSContext.link */
+ /* list of JSGCObjectHeader.link. List of allocated GC objects (used
+ by the garbage collector) */
+ struct list_head gc_obj_list;
+ /* list of JSGCObjectHeader.link. Used during JS_FreeValueRT() */
+ struct list_head gc_zero_ref_count_list;
+ struct list_head tmp_obj_list; /* used during GC */
+ JSGCPhaseEnum gc_phase : 8;
+ size_t malloc_gc_threshold;
+#ifdef DUMP_LEAKS
+ struct list_head string_list; /* list of JSString.link */
+#endif
+ /* stack limitation */
+ uintptr_t stack_size; /* in bytes, 0 if no limit */
+ uintptr_t stack_top;
+ uintptr_t stack_limit; /* lower stack limit */
+
+ JSValue current_exception;
+ /* true if inside an out of memory error, to avoid recursing */
+ BOOL in_out_of_memory : 8;
+
+ struct JSStackFrame *current_stack_frame;
+
+ JSInterruptHandler *interrupt_handler;
+ void *interrupt_opaque;
+
+ JSHostPromiseRejectionTracker *host_promise_rejection_tracker;
+ void *host_promise_rejection_tracker_opaque;
+
+ struct list_head job_list; /* list of JSJobEntry.link */
+
+ JSModuleNormalizeFunc *module_normalize_func;
+ JSModuleLoaderFunc *module_loader_func;
+ void *module_loader_opaque;
+ /* timestamp for internal use in module evaluation */
+ int64_t module_async_evaluation_next_timestamp;
+
+ BOOL can_block : 8; /* TRUE if Atomics.wait can block */
+ /* used to allocate, free and clone SharedArrayBuffers */
+ JSSharedArrayBufferFunctions sab_funcs;
+
+ /* Shape hash table */
+ int shape_hash_bits;
+ int shape_hash_size;
+ int shape_hash_count; /* number of hashed shapes */
+ JSShape **shape_hash;
+ bf_context_t bf_ctx;
+ JSNumericOperations bigint_ops;
+#ifdef CONFIG_BIGNUM
+ JSNumericOperations bigfloat_ops;
+ JSNumericOperations bigdecimal_ops;
+ uint32_t operator_count;
+#endif
+ void *user_opaque;
+};
+
+struct JSClass {
+ uint32_t class_id; /* 0 means free entry */
+ JSAtom class_name;
+ JSClassFinalizer *finalizer;
+ JSClassGCMark *gc_mark;
+ JSClassCall *call;
+ /* pointers for exotic behavior, can be NULL if none are present */
+ const JSClassExoticMethods *exotic;
+};
+
+#define JS_MODE_STRICT (1 << 0)
+#define JS_MODE_STRIP (1 << 1)
+#define JS_MODE_MATH (1 << 2)
+#define JS_MODE_ASYNC (1 << 3) /* async function */
+
+typedef struct JSStackFrame {
+ struct JSStackFrame *prev_frame; /* NULL if first stack frame */
+ JSValue cur_func; /* current function, JS_UNDEFINED if the frame is detached */
+ JSValue *arg_buf; /* arguments */
+ JSValue *var_buf; /* variables */
+ struct list_head var_ref_list; /* list of JSVarRef.var_ref_link */
+ const uint8_t *cur_pc; /* only used in bytecode functions : PC of the
+ instruction after the call */
+ int arg_count;
+ int js_mode; /* for C functions, only JS_MODE_MATH may be set */
+ /* only used in generators. Current stack pointer value. NULL if
+ the function is running. */
+ JSValue *cur_sp;
+} JSStackFrame;
+
+typedef enum {
+ JS_GC_OBJ_TYPE_JS_OBJECT,
+ JS_GC_OBJ_TYPE_FUNCTION_BYTECODE,
+ JS_GC_OBJ_TYPE_SHAPE,
+ JS_GC_OBJ_TYPE_VAR_REF,
+ JS_GC_OBJ_TYPE_ASYNC_FUNCTION,
+ JS_GC_OBJ_TYPE_JS_CONTEXT,
+} JSGCObjectTypeEnum;
+
+/* header for GC objects. GC objects are C data structures with a
+ reference count that can reference other GC objects. JS Objects are
+ a particular type of GC object. */
+struct JSGCObjectHeader {
+ int ref_count; /* must come first, 32-bit */
+ JSGCObjectTypeEnum gc_obj_type : 4;
+ uint8_t mark : 4; /* used by the GC */
+ uint8_t dummy1; /* not used by the GC */
+ uint16_t dummy2; /* not used by the GC */
+ struct list_head link;
+};
+
+typedef struct JSVarRef {
+ union {
+ JSGCObjectHeader header; /* must come first */
+ struct {
+ int __gc_ref_count; /* corresponds to header.ref_count */
+ uint8_t __gc_mark; /* corresponds to header.mark/gc_obj_type */
+ uint8_t is_detached : 1;
+ uint8_t is_arg : 1;
+ uint16_t var_idx; /* index of the corresponding function variable on
+ the stack */
+ };
+ };
+ JSValue *pvalue; /* pointer to the value, either on the stack or
+ to 'value' */
+ union {
+ JSValue value; /* used when is_detached = TRUE */
+ struct {
+ struct list_head var_ref_link; /* JSStackFrame.var_ref_list list */
+ struct JSAsyncFunctionState *async_func; /* != NULL if async stack frame */
+ }; /* used when is_detached = FALSE */
+ };
+} JSVarRef;
+
+/* the same structure is used for big integers and big floats. Big
+ integers are never infinite or NaNs */
+typedef struct JSBigFloat {
+ JSRefCountHeader header; /* must come first, 32-bit */
+ bf_t num;
+} JSBigFloat;
+
+#ifdef CONFIG_BIGNUM
+typedef struct JSFloatEnv {
+ limb_t prec;
+ bf_flags_t flags;
+ unsigned int status;
+} JSFloatEnv;
+
+typedef struct JSBigDecimal {
+ JSRefCountHeader header; /* must come first, 32-bit */
+ bfdec_t num;
+} JSBigDecimal;
+#endif
+
+typedef enum {
+ JS_AUTOINIT_ID_PROTOTYPE,
+ JS_AUTOINIT_ID_MODULE_NS,
+ JS_AUTOINIT_ID_PROP,
+} JSAutoInitIDEnum;
+
+/* must be large enough to have a negligible runtime cost and small
+ enough to call the interrupt callback often. */
+#define JS_INTERRUPT_COUNTER_INIT 10000
+
+struct JSContext {
+ JSGCObjectHeader header; /* must come first */
+ JSRuntime *rt;
+ struct list_head link;
+
+ uint16_t binary_object_count;
+ int binary_object_size;
+
+ JSShape *array_shape; /* initial shape for Array objects */
+
+ JSValue *class_proto;
+ JSValue function_proto;
+ JSValue function_ctor;
+ JSValue array_ctor;
+ JSValue regexp_ctor;
+ JSValue promise_ctor;
+ JSValue native_error_proto[JS_NATIVE_ERROR_COUNT];
+ JSValue iterator_proto;
+ JSValue async_iterator_proto;
+ JSValue array_proto_values;
+ JSValue throw_type_error;
+ JSValue eval_obj;
+
+ JSValue global_obj; /* global object */
+ JSValue global_var_obj; /* contains the global let/const definitions */
+
+ uint64_t random_state;
+ bf_context_t *bf_ctx; /* points to rt->bf_ctx, shared by all contexts */
+#ifdef CONFIG_BIGNUM
+ JSFloatEnv fp_env; /* global FP environment */
+ BOOL bignum_ext : 8; /* enable math mode */
+ BOOL allow_operator_overloading : 8;
+#endif
+ /* when the counter reaches zero, JSRutime.interrupt_handler is called */
+ int interrupt_counter;
+
+ struct list_head loaded_modules; /* list of JSModuleDef.link */
+
+ /* if NULL, RegExp compilation is not supported */
+ JSValue (*compile_regexp)(JSContext *ctx, JSValueConst pattern,
+ JSValueConst flags);
+ /* if NULL, eval is not supported */
+ JSValue (*eval_internal)(JSContext *ctx, JSValueConst this_obj,
+ const char *input, size_t input_len,
+ const char *filename, int flags, int scope_idx);
+ void *user_opaque;
+};
+
+typedef union JSFloat64Union {
+ double d;
+ uint64_t u64;
+ uint32_t u32[2];
+} JSFloat64Union;
+
+enum {
+ JS_ATOM_TYPE_STRING = 1,
+ JS_ATOM_TYPE_GLOBAL_SYMBOL,
+ JS_ATOM_TYPE_SYMBOL,
+ JS_ATOM_TYPE_PRIVATE,
+};
+
+enum {
+ JS_ATOM_HASH_SYMBOL,
+ JS_ATOM_HASH_PRIVATE,
+};
+
+typedef enum {
+ JS_ATOM_KIND_STRING,
+ JS_ATOM_KIND_SYMBOL,
+ JS_ATOM_KIND_PRIVATE,
+} JSAtomKindEnum;
+
+#define JS_ATOM_HASH_MASK ((1 << 30) - 1)
+
+struct JSString {
+ JSRefCountHeader header; /* must come first, 32-bit */
+ uint32_t len : 31;
+ uint8_t is_wide_char : 1; /* 0 = 8 bits, 1 = 16 bits characters */
+ /* for JS_ATOM_TYPE_SYMBOL: hash = 0, atom_type = 3,
+ for JS_ATOM_TYPE_PRIVATE: hash = 1, atom_type = 3
+ XXX: could change encoding to have one more bit in hash */
+ uint32_t hash : 30;
+ uint8_t atom_type : 2; /* != 0 if atom, JS_ATOM_TYPE_x */
+ uint32_t hash_next; /* atom_index for JS_ATOM_TYPE_SYMBOL */
+#ifdef DUMP_LEAKS
+ struct list_head link; /* string list */
+#endif
+ union {
+ uint8_t str8[0]; /* 8 bit strings will get an extra null terminator */
+ uint16_t str16[0];
+ } u;
+};
+
+typedef struct JSClosureVar {
+ uint8_t is_local : 1;
+ uint8_t is_arg : 1;
+ uint8_t is_const : 1;
+ uint8_t is_lexical : 1;
+ uint8_t var_kind : 4; /* see JSVarKindEnum */
+ /* 8 bits available */
+ uint16_t var_idx; /* is_local = TRUE: index to a normal variable of the
+ parent function. otherwise: index to a closure
+ variable of the parent function */
+ JSAtom var_name;
+} JSClosureVar;
+
+#define ARG_SCOPE_INDEX 1
+#define ARG_SCOPE_END (-2)
+
+typedef struct JSVarScope {
+ int parent; /* index into fd->scopes of the enclosing scope */
+ int first; /* index into fd->vars of the last variable in this scope */
+} JSVarScope;
+
+typedef enum {
+ /* XXX: add more variable kinds here instead of using bit fields */
+ JS_VAR_NORMAL,
+ JS_VAR_FUNCTION_DECL, /* lexical var with function declaration */
+ JS_VAR_NEW_FUNCTION_DECL, /* lexical var with async/generator
+ function declaration */
+ JS_VAR_CATCH,
+ JS_VAR_FUNCTION_NAME, /* function expression name */
+ JS_VAR_PRIVATE_FIELD,
+ JS_VAR_PRIVATE_METHOD,
+ JS_VAR_PRIVATE_GETTER,
+ JS_VAR_PRIVATE_SETTER, /* must come after JS_VAR_PRIVATE_GETTER */
+ JS_VAR_PRIVATE_GETTER_SETTER, /* must come after JS_VAR_PRIVATE_SETTER */
+} JSVarKindEnum;
+
+/* XXX: could use a different structure in bytecode functions to save
+ memory */
+typedef struct JSVarDef {
+ JSAtom var_name;
+ /* index into fd->scopes of this variable lexical scope */
+ int scope_level;
+ /* during compilation:
+ - if scope_level = 0: scope in which the variable is defined
+ - if scope_level != 0: index into fd->vars of the next
+ variable in the same or enclosing lexical scope
+ in a bytecode function:
+ index into fd->vars of the next
+ variable in the same or enclosing lexical scope
+ */
+ int scope_next;
+ uint8_t is_const : 1;
+ uint8_t is_lexical : 1;
+ uint8_t is_captured : 1;
+ uint8_t is_static_private : 1; /* only used during private class field parsing */
+ uint8_t var_kind : 4; /* see JSVarKindEnum */
+ /* only used during compilation: function pool index for lexical
+ variables with var_kind =
+ JS_VAR_FUNCTION_DECL/JS_VAR_NEW_FUNCTION_DECL or scope level of
+ the definition of the 'var' variables (they have scope_level =
+ 0) */
+ int func_pool_idx : 24; /* only used during compilation : index in
+ the constant pool for hoisted function
+ definition */
+} JSVarDef;
+
+/* for the encoding of the pc2line table */
+#define PC2LINE_BASE (-1)
+#define PC2LINE_RANGE 5
+#define PC2LINE_OP_FIRST 1
+#define PC2LINE_DIFF_PC_MAX ((255 - PC2LINE_OP_FIRST) / PC2LINE_RANGE)
+
+typedef enum JSFunctionKindEnum {
+ JS_FUNC_NORMAL = 0,
+ JS_FUNC_GENERATOR = (1 << 0),
+ JS_FUNC_ASYNC = (1 << 1),
+ JS_FUNC_ASYNC_GENERATOR = (JS_FUNC_GENERATOR | JS_FUNC_ASYNC),
+} JSFunctionKindEnum;
+
+typedef struct JSFunctionBytecode {
+ JSGCObjectHeader header; /* must come first */
+ uint8_t js_mode;
+ uint8_t has_prototype : 1; /* true if a prototype field is necessary */
+ uint8_t has_simple_parameter_list : 1;
+ uint8_t is_derived_class_constructor : 1;
+ /* true if home_object needs to be initialized */
+ uint8_t need_home_object : 1;
+ uint8_t func_kind : 2;
+ uint8_t new_target_allowed : 1;
+ uint8_t super_call_allowed : 1;
+ uint8_t super_allowed : 1;
+ uint8_t arguments_allowed : 1;
+ uint8_t has_debug : 1;
+ uint8_t backtrace_barrier : 1; /* stop backtrace on this function */
+ uint8_t read_only_bytecode : 1;
+ uint8_t is_direct_or_indirect_eval : 1; /* used by JS_GetScriptOrModuleName() */
+ /* XXX: 10 bits available */
+ uint8_t *byte_code_buf; /* (self pointer) */
+ int byte_code_len;
+ JSAtom func_name;
+ JSVarDef *vardefs; /* arguments + local variables (arg_count + var_count) (self pointer) */
+ JSClosureVar *closure_var; /* list of variables in the closure (self pointer) */
+ uint16_t arg_count;
+ uint16_t var_count;
+ uint16_t defined_arg_count; /* for length function property */
+ uint16_t stack_size; /* maximum stack size */
+ JSContext *realm; /* function realm */
+ JSValue *cpool; /* constant pool (self pointer) */
+ int cpool_count;
+ int closure_var_count;
+ struct {
+ /* debug info, move to separate structure to save memory? */
+ JSAtom filename;
+ int line_num;
+ int source_len;
+ int pc2line_len;
+ uint8_t *pc2line_buf;
+ char *source;
+ } debug;
+} JSFunctionBytecode;
+
+typedef struct JSBoundFunction {
+ JSValue func_obj;
+ JSValue this_val;
+ int argc;
+ JSValue argv[0];
+} JSBoundFunction;
+
+typedef enum JSIteratorKindEnum {
+ JS_ITERATOR_KIND_KEY,
+ JS_ITERATOR_KIND_VALUE,
+ JS_ITERATOR_KIND_KEY_AND_VALUE,
+} JSIteratorKindEnum;
+
+typedef struct JSForInIterator {
+ JSValue obj;
+ uint32_t idx;
+ uint32_t atom_count;
+ uint8_t in_prototype_chain;
+ uint8_t is_array;
+ JSPropertyEnum *tab_atom; /* is_array = FALSE */
+} JSForInIterator;
+
+typedef struct JSRegExp {
+ JSString *pattern;
+ JSString *bytecode; /* also contains the flags */
+} JSRegExp;
+
+typedef struct JSProxyData {
+ JSValue target;
+ JSValue handler;
+ uint8_t is_func;
+ uint8_t is_revoked;
+} JSProxyData;
+
+typedef struct JSArrayBuffer {
+ int byte_length; /* 0 if detached */
+ uint8_t detached;
+ uint8_t shared; /* if shared, the array buffer cannot be detached */
+ uint8_t *data; /* NULL if detached */
+ struct list_head array_list;
+ void *opaque;
+ JSFreeArrayBufferDataFunc *free_func;
+} JSArrayBuffer;
+
+typedef struct JSTypedArray {
+ struct list_head link; /* link to arraybuffer */
+ JSObject *obj; /* back pointer to the TypedArray/DataView object */
+ JSObject *buffer; /* based array buffer */
+ uint32_t offset; /* offset in the array buffer */
+ uint32_t length; /* length in the array buffer */
+} JSTypedArray;
+
+typedef struct JSAsyncFunctionState {
+ JSGCObjectHeader header;
+ JSValue this_val; /* 'this' argument */
+ int argc; /* number of function arguments */
+ BOOL throw_flag; /* used to throw an exception in JS_CallInternal() */
+ BOOL is_completed; /* TRUE if the function has returned. The stack
+ frame is no longer valid */
+ JSValue resolving_funcs[2]; /* only used in JS async functions */
+ JSStackFrame frame;
+} JSAsyncFunctionState;
+
+typedef enum {
+ /* binary operators */
+ JS_OVOP_ADD,
+ JS_OVOP_SUB,
+ JS_OVOP_MUL,
+ JS_OVOP_DIV,
+ JS_OVOP_MOD,
+ JS_OVOP_POW,
+ JS_OVOP_OR,
+ JS_OVOP_AND,
+ JS_OVOP_XOR,
+ JS_OVOP_SHL,
+ JS_OVOP_SAR,
+ JS_OVOP_SHR,
+ JS_OVOP_EQ,
+ JS_OVOP_LESS,
+
+ JS_OVOP_BINARY_COUNT,
+ /* unary operators */
+ JS_OVOP_POS = JS_OVOP_BINARY_COUNT,
+ JS_OVOP_NEG,
+ JS_OVOP_INC,
+ JS_OVOP_DEC,
+ JS_OVOP_NOT,
+
+ JS_OVOP_COUNT,
+} JSOverloadableOperatorEnum;
+
+typedef struct {
+ uint32_t operator_index;
+ JSObject *ops[JS_OVOP_BINARY_COUNT]; /* self operators */
+} JSBinaryOperatorDefEntry;
+
+typedef struct {
+ int count;
+ JSBinaryOperatorDefEntry *tab;
+} JSBinaryOperatorDef;
+
+typedef struct {
+ uint32_t operator_counter;
+ BOOL is_primitive; /* OperatorSet for a primitive type */
+ /* NULL if no operator is defined */
+ JSObject *self_ops[JS_OVOP_COUNT]; /* self operators */
+ JSBinaryOperatorDef left;
+ JSBinaryOperatorDef right;
+} JSOperatorSetData;
+
+typedef struct JSReqModuleEntry {
+ JSAtom module_name;
+ JSModuleDef *module; /* used using resolution */
+} JSReqModuleEntry;
+
+typedef enum JSExportTypeEnum {
+ JS_EXPORT_TYPE_LOCAL,
+ JS_EXPORT_TYPE_INDIRECT,
+} JSExportTypeEnum;
+
+typedef struct JSExportEntry {
+ union {
+ struct {
+ int var_idx; /* closure variable index */
+ JSVarRef *var_ref; /* if != NULL, reference to the variable */
+ } local; /* for local export */
+ int req_module_idx; /* module for indirect export */
+ } u;
+ JSExportTypeEnum export_type;
+ JSAtom local_name; /* '*' if export ns from. not used for local
+ export after compilation */
+ JSAtom export_name; /* exported variable name */
+} JSExportEntry;
+
+typedef struct JSStarExportEntry {
+ int req_module_idx; /* in req_module_entries */
+} JSStarExportEntry;
+
+typedef struct JSImportEntry {
+ int var_idx; /* closure variable index */
+ JSAtom import_name;
+ int req_module_idx; /* in req_module_entries */
+} JSImportEntry;
+
+typedef enum {
+ JS_MODULE_STATUS_UNLINKED,
+ JS_MODULE_STATUS_LINKING,
+ JS_MODULE_STATUS_LINKED,
+ JS_MODULE_STATUS_EVALUATING,
+ JS_MODULE_STATUS_EVALUATING_ASYNC,
+ JS_MODULE_STATUS_EVALUATED,
+} JSModuleStatus;
+
+struct JSModuleDef {
+ JSRefCountHeader header; /* must come first, 32-bit */
+ JSAtom module_name;
+ struct list_head link;
+
+ JSReqModuleEntry *req_module_entries;
+ int req_module_entries_count;
+ int req_module_entries_size;
+
+ JSExportEntry *export_entries;
+ int export_entries_count;
+ int export_entries_size;
+
+ JSStarExportEntry *star_export_entries;
+ int star_export_entries_count;
+ int star_export_entries_size;
+
+ JSImportEntry *import_entries;
+ int import_entries_count;
+ int import_entries_size;
+
+ JSValue module_ns;
+ JSValue func_obj; /* only used for JS modules */
+ JSModuleInitFunc *init_func; /* only used for C modules */
+ BOOL has_tla : 8; /* true if func_obj contains await */
+ BOOL resolved : 8;
+ BOOL func_created : 8;
+ JSModuleStatus status : 8;
+ /* temp use during js_module_link() & js_module_evaluate() */
+ int dfs_index, dfs_ancestor_index;
+ JSModuleDef *stack_prev;
+ /* temp use during js_module_evaluate() */
+ JSModuleDef **async_parent_modules;
+ int async_parent_modules_count;
+ int async_parent_modules_size;
+ int pending_async_dependencies;
+ BOOL async_evaluation;
+ int64_t async_evaluation_timestamp;
+ JSModuleDef *cycle_root;
+ JSValue promise; /* corresponds to spec field: capability */
+ JSValue resolving_funcs[2]; /* corresponds to spec field: capability */
+
+ /* true if evaluation yielded an exception. It is saved in
+ eval_exception */
+ BOOL eval_has_exception : 8;
+ JSValue eval_exception;
+ JSValue meta_obj; /* for import.meta */
+};
+
+typedef struct JSJobEntry {
+ struct list_head link;
+ JSContext *ctx;
+ JSJobFunc *job_func;
+ int argc;
+ JSValue argv[0];
+} JSJobEntry;
+
+typedef struct JSProperty {
+ union {
+ JSValue value; /* JS_PROP_NORMAL */
+ struct { /* JS_PROP_GETSET */
+ JSObject *getter; /* NULL if undefined */
+ JSObject *setter; /* NULL if undefined */
+ } getset;
+ JSVarRef *var_ref; /* JS_PROP_VARREF */
+ struct { /* JS_PROP_AUTOINIT */
+ /* in order to use only 2 pointers, we compress the realm
+ and the init function pointer */
+ uintptr_t realm_and_id; /* realm and init_id (JS_AUTOINIT_ID_x)
+ in the 2 low bits */
+ void *opaque;
+ } init;
+ } u;
+} JSProperty;
+
+#define JS_PROP_INITIAL_SIZE 2
+#define JS_PROP_INITIAL_HASH_SIZE 4 /* must be a power of two */
+#define JS_ARRAY_INITIAL_SIZE 2
+
+typedef struct JSShapeProperty {
+ uint32_t hash_next : 26; /* 0 if last in list */
+ uint32_t flags : 6; /* JS_PROP_XXX */
+ JSAtom atom; /* JS_ATOM_NULL = free property entry */
+} JSShapeProperty;
+
+struct JSShape {
+ /* hash table of size hash_mask + 1 before the start of the
+ structure (see prop_hash_end()). */
+ JSGCObjectHeader header;
+ /* true if the shape is inserted in the shape hash table. If not,
+ JSShape.hash is not valid */
+ uint8_t is_hashed;
+ /* If true, the shape may have small array index properties 'n' with 0
+ <= n <= 2^31-1. If false, the shape is guaranteed not to have
+ small array index properties */
+ uint8_t has_small_array_index;
+ uint32_t hash; /* current hash value */
+ uint32_t prop_hash_mask;
+ int prop_size; /* allocated properties */
+ int prop_count; /* include deleted properties */
+ int deleted_prop_count;
+ JSShape *shape_hash_next; /* in JSRuntime.shape_hash[h] list */
+ JSObject *proto;
+ JSShapeProperty prop[0]; /* prop_size elements */
+};
+
+struct JSObject {
+ union {
+ JSGCObjectHeader header;
+ struct {
+ int __gc_ref_count; /* corresponds to header.ref_count */
+ uint8_t __gc_mark; /* corresponds to header.mark/gc_obj_type */
+
+ uint8_t extensible : 1;
+ uint8_t free_mark : 1; /* only used when freeing objects with cycles */
+ uint8_t is_exotic : 1; /* TRUE if object has exotic property handlers */
+ uint8_t fast_array : 1; /* TRUE if u.array is used for get/put (for JS_CLASS_ARRAY, JS_CLASS_ARGUMENTS and typed arrays) */
+ uint8_t is_constructor : 1; /* TRUE if object is a constructor function */
+ uint8_t is_uncatchable_error : 1; /* if TRUE, error is not catchable */
+ uint8_t tmp_mark : 1; /* used in JS_WriteObjectRec() */
+ uint8_t is_HTMLDDA : 1; /* specific annex B IsHtmlDDA behavior */
+ uint16_t class_id; /* see JS_CLASS_x */
+ };
+ };
+ /* byte offsets: 16/24 */
+ JSShape *shape; /* prototype and property names + flag */
+ JSProperty *prop; /* array of properties */
+ /* byte offsets: 24/40 */
+ struct JSMapRecord *first_weak_ref; /* XXX: use a bit and an external hash table? */
+ /* byte offsets: 28/48 */
+ union {
+ void *opaque;
+ struct JSBoundFunction *bound_function; /* JS_CLASS_BOUND_FUNCTION */
+ struct JSCFunctionDataRecord *c_function_data_record; /* JS_CLASS_C_FUNCTION_DATA */
+ struct JSForInIterator *for_in_iterator; /* JS_CLASS_FOR_IN_ITERATOR */
+ struct JSArrayBuffer *array_buffer; /* JS_CLASS_ARRAY_BUFFER, JS_CLASS_SHARED_ARRAY_BUFFER */
+ struct JSTypedArray *typed_array; /* JS_CLASS_UINT8C_ARRAY..JS_CLASS_DATAVIEW */
+#ifdef CONFIG_BIGNUM
+ struct JSFloatEnv *float_env; /* JS_CLASS_FLOAT_ENV */
+ struct JSOperatorSetData *operator_set; /* JS_CLASS_OPERATOR_SET */
+#endif
+ struct JSMapState *map_state; /* JS_CLASS_MAP..JS_CLASS_WEAKSET */
+ struct JSMapIteratorData *map_iterator_data; /* JS_CLASS_MAP_ITERATOR, JS_CLASS_SET_ITERATOR */
+ struct JSArrayIteratorData *array_iterator_data; /* JS_CLASS_ARRAY_ITERATOR, JS_CLASS_STRING_ITERATOR */
+ struct JSRegExpStringIteratorData *regexp_string_iterator_data; /* JS_CLASS_REGEXP_STRING_ITERATOR */
+ struct JSGeneratorData *generator_data; /* JS_CLASS_GENERATOR */
+ struct JSProxyData *proxy_data; /* JS_CLASS_PROXY */
+ struct JSPromiseData *promise_data; /* JS_CLASS_PROMISE */
+ struct JSPromiseFunctionData *promise_function_data; /* JS_CLASS_PROMISE_RESOLVE_FUNCTION, JS_CLASS_PROMISE_REJECT_FUNCTION */
+ struct JSAsyncFunctionState *async_function_data; /* JS_CLASS_ASYNC_FUNCTION_RESOLVE, JS_CLASS_ASYNC_FUNCTION_REJECT */
+ struct JSAsyncFromSyncIteratorData *async_from_sync_iterator_data; /* JS_CLASS_ASYNC_FROM_SYNC_ITERATOR */
+ struct JSAsyncGeneratorData *async_generator_data; /* JS_CLASS_ASYNC_GENERATOR */
+ struct { /* JS_CLASS_BYTECODE_FUNCTION: 12/24 bytes */
+ /* also used by JS_CLASS_GENERATOR_FUNCTION, JS_CLASS_ASYNC_FUNCTION and JS_CLASS_ASYNC_GENERATOR_FUNCTION */
+ struct JSFunctionBytecode *function_bytecode;
+ JSVarRef **var_refs;
+ JSObject *home_object; /* for 'super' access */
+ } func;
+ struct { /* JS_CLASS_C_FUNCTION: 12/20 bytes */
+ JSContext *realm;
+ JSCFunctionType c_function;
+ uint8_t length;
+ uint8_t cproto;
+ int16_t magic;
+ } cfunc;
+ /* array part for fast arrays and typed arrays */
+ struct { /* JS_CLASS_ARRAY, JS_CLASS_ARGUMENTS, JS_CLASS_UINT8C_ARRAY..JS_CLASS_FLOAT64_ARRAY */
+ union {
+ uint32_t size; /* JS_CLASS_ARRAY, JS_CLASS_ARGUMENTS */
+ struct JSTypedArray *typed_array; /* JS_CLASS_UINT8C_ARRAY..JS_CLASS_FLOAT64_ARRAY */
+ } u1;
+ union {
+ JSValue *values; /* JS_CLASS_ARRAY, JS_CLASS_ARGUMENTS */
+ void *ptr; /* JS_CLASS_UINT8C_ARRAY..JS_CLASS_FLOAT64_ARRAY */
+ int8_t *int8_ptr; /* JS_CLASS_INT8_ARRAY */
+ uint8_t *uint8_ptr; /* JS_CLASS_UINT8_ARRAY, JS_CLASS_UINT8C_ARRAY */
+ int16_t *int16_ptr; /* JS_CLASS_INT16_ARRAY */
+ uint16_t *uint16_ptr; /* JS_CLASS_UINT16_ARRAY */
+ int32_t *int32_ptr; /* JS_CLASS_INT32_ARRAY */
+ uint32_t *uint32_ptr; /* JS_CLASS_UINT32_ARRAY */
+ int64_t *int64_ptr; /* JS_CLASS_INT64_ARRAY */
+ uint64_t *uint64_ptr; /* JS_CLASS_UINT64_ARRAY */
+ float *float_ptr; /* JS_CLASS_FLOAT32_ARRAY */
+ double *double_ptr; /* JS_CLASS_FLOAT64_ARRAY */
+ } u;
+ uint32_t count; /* <= 2^31-1. 0 for a detached typed array */
+ } array; /* 12/20 bytes */
+ JSRegExp regexp; /* JS_CLASS_REGEXP: 8/16 bytes */
+ JSValue object_data; /* for JS_SetObjectData(): 8/16/16 bytes */
+ } u;
+ /* byte sizes: 40/48/72 */
+};
+
+enum {
+ __JS_ATOM_NULL = JS_ATOM_NULL,
+#define DEF(name, str) JS_ATOM_ ## name,
+#include "quickjs-atom.h"
+#undef DEF
+ JS_ATOM_END,
+};
+#define JS_ATOM_LAST_KEYWORD JS_ATOM_super
+#define JS_ATOM_LAST_STRICT_KEYWORD JS_ATOM_yield
+
+static const char js_atom_init[] =
+#define DEF(name, str) str "\0"
+#include "quickjs-atom.h"
+#undef DEF
+;
+
+typedef enum OPCodeFormat {
+#define FMT(f) OP_FMT_ ## f,
+#define DEF(id, size, n_pop, n_push, f)
+#include "quickjs-opcode.h"
+#undef DEF
+#undef FMT
+} OPCodeFormat;
+
+enum OPCodeEnum {
+#define FMT(f)
+#define DEF(id, size, n_pop, n_push, f) OP_ ## id,
+#define def(id, size, n_pop, n_push, f)
+#include "quickjs-opcode.h"
+#undef def
+#undef DEF
+#undef FMT
+ OP_COUNT, /* excluding temporary opcodes */
+ /* temporary opcodes : overlap with the short opcodes */
+ OP_TEMP_START = OP_nop + 1,
+ OP___dummy = OP_TEMP_START - 1,
+#define FMT(f)
+#define DEF(id, size, n_pop, n_push, f)
+#define def(id, size, n_pop, n_push, f) OP_ ## id,
+#include "quickjs-opcode.h"
+#undef def
+#undef DEF
+#undef FMT
+ OP_TEMP_END,
+};
+
+static int JS_InitAtoms(JSRuntime *rt);
+static JSAtom __JS_NewAtomInit(JSRuntime *rt, const char *str, int len,
+ int atom_type);
+static void JS_FreeAtomStruct(JSRuntime *rt, JSAtomStruct *p);
+static void free_function_bytecode(JSRuntime *rt, JSFunctionBytecode *b);
+static JSValue js_call_c_function(JSContext *ctx, JSValueConst func_obj,
+ JSValueConst this_obj,
+ int argc, JSValueConst *argv, int flags);
+static JSValue js_call_bound_function(JSContext *ctx, JSValueConst func_obj,
+ JSValueConst this_obj,
+ int argc, JSValueConst *argv, int flags);
+static JSValue JS_CallInternal(JSContext *ctx, JSValueConst func_obj,
+ JSValueConst this_obj, JSValueConst new_target,
+ int argc, JSValue *argv, int flags);
+static JSValue JS_CallConstructorInternal(JSContext *ctx,
+ JSValueConst func_obj,
+ JSValueConst new_target,
+ int argc, JSValue *argv, int flags);
+static JSValue JS_CallFree(JSContext *ctx, JSValue func_obj, JSValueConst this_obj,
+ int argc, JSValueConst *argv);
+static JSValue JS_InvokeFree(JSContext *ctx, JSValue this_val, JSAtom atom,
+ int argc, JSValueConst *argv);
+static __exception int JS_ToArrayLengthFree(JSContext *ctx, uint32_t *plen,
+ JSValue val, BOOL is_array_ctor);
+static JSValue JS_EvalObject(JSContext *ctx, JSValueConst this_obj,
+ JSValueConst val, int flags, int scope_idx);
+JSValue __attribute__((format(printf, 2, 3))) JS_ThrowInternalError(JSContext *ctx, const char *fmt, ...);
+static __maybe_unused void JS_DumpAtoms(JSRuntime *rt);
+static __maybe_unused void JS_DumpString(JSRuntime *rt, const JSString *p);
+static __maybe_unused void JS_DumpObjectHeader(JSRuntime *rt);
+static __maybe_unused void JS_DumpObject(JSRuntime *rt, JSObject *p);
+static __maybe_unused void JS_DumpGCObject(JSRuntime *rt, JSGCObjectHeader *p);
+static __maybe_unused void JS_DumpValueShort(JSRuntime *rt, JSValueConst val);
+static __maybe_unused void JS_DumpValue(JSContext *ctx, JSValueConst val);
+static __maybe_unused void JS_PrintValue(JSContext *ctx,
+ const char *str,
+ JSValueConst val);
+static __maybe_unused void JS_DumpShapes(JSRuntime *rt);
+static JSValue js_function_apply(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int magic);
+static void js_array_finalizer(JSRuntime *rt, JSValue val);
+static void js_array_mark(JSRuntime *rt, JSValueConst val, JS_MarkFunc *mark_func);
+static void js_object_data_finalizer(JSRuntime *rt, JSValue val);
+static void js_object_data_mark(JSRuntime *rt, JSValueConst val, JS_MarkFunc *mark_func);
+static void js_c_function_finalizer(JSRuntime *rt, JSValue val);
+static void js_c_function_mark(JSRuntime *rt, JSValueConst val, JS_MarkFunc *mark_func);
+static void js_bytecode_function_finalizer(JSRuntime *rt, JSValue val);
+static void js_bytecode_function_mark(JSRuntime *rt, JSValueConst val,
+ JS_MarkFunc *mark_func);
+static void js_bound_function_finalizer(JSRuntime *rt, JSValue val);
+static void js_bound_function_mark(JSRuntime *rt, JSValueConst val,
+ JS_MarkFunc *mark_func);
+static void js_for_in_iterator_finalizer(JSRuntime *rt, JSValue val);
+static void js_for_in_iterator_mark(JSRuntime *rt, JSValueConst val,
+ JS_MarkFunc *mark_func);
+static void js_regexp_finalizer(JSRuntime *rt, JSValue val);
+static void js_array_buffer_finalizer(JSRuntime *rt, JSValue val);
+static void js_typed_array_finalizer(JSRuntime *rt, JSValue val);
+static void js_typed_array_mark(JSRuntime *rt, JSValueConst val,
+ JS_MarkFunc *mark_func);
+static void js_proxy_finalizer(JSRuntime *rt, JSValue val);
+static void js_proxy_mark(JSRuntime *rt, JSValueConst val,
+ JS_MarkFunc *mark_func);
+static void js_map_finalizer(JSRuntime *rt, JSValue val);
+static void js_map_mark(JSRuntime *rt, JSValueConst val,
+ JS_MarkFunc *mark_func);
+static void js_map_iterator_finalizer(JSRuntime *rt, JSValue val);
+static void js_map_iterator_mark(JSRuntime *rt, JSValueConst val,
+ JS_MarkFunc *mark_func);
+static void js_array_iterator_finalizer(JSRuntime *rt, JSValue val);
+static void js_array_iterator_mark(JSRuntime *rt, JSValueConst val,
+ JS_MarkFunc *mark_func);
+static void js_regexp_string_iterator_finalizer(JSRuntime *rt, JSValue val);
+static void js_regexp_string_iterator_mark(JSRuntime *rt, JSValueConst val,
+ JS_MarkFunc *mark_func);
+static void js_generator_finalizer(JSRuntime *rt, JSValue obj);
+static void js_generator_mark(JSRuntime *rt, JSValueConst val,
+ JS_MarkFunc *mark_func);
+static void js_promise_finalizer(JSRuntime *rt, JSValue val);
+static void js_promise_mark(JSRuntime *rt, JSValueConst val,
+ JS_MarkFunc *mark_func);
+static void js_promise_resolve_function_finalizer(JSRuntime *rt, JSValue val);
+static void js_promise_resolve_function_mark(JSRuntime *rt, JSValueConst val,
+ JS_MarkFunc *mark_func);
+#ifdef CONFIG_BIGNUM
+static void js_operator_set_finalizer(JSRuntime *rt, JSValue val);
+static void js_operator_set_mark(JSRuntime *rt, JSValueConst val,
+ JS_MarkFunc *mark_func);
+#endif
+
+#define HINT_STRING 0
+#define HINT_NUMBER 1
+#define HINT_NONE 2
+#define HINT_FORCE_ORDINARY (1 << 4) // don't try Symbol.toPrimitive
+static JSValue JS_ToPrimitiveFree(JSContext *ctx, JSValue val, int hint);
+static JSValue JS_ToStringFree(JSContext *ctx, JSValue val);
+static int JS_ToBoolFree(JSContext *ctx, JSValue val);
+static int JS_ToInt32Free(JSContext *ctx, int32_t *pres, JSValue val);
+static int JS_ToFloat64Free(JSContext *ctx, double *pres, JSValue val);
+static int JS_ToUint8ClampFree(JSContext *ctx, int32_t *pres, JSValue val);
+static JSValue js_compile_regexp(JSContext *ctx, JSValueConst pattern,
+ JSValueConst flags);
+static JSValue js_regexp_constructor_internal(JSContext *ctx, JSValueConst ctor,
+ JSValue pattern, JSValue bc);
+static void gc_decref(JSRuntime *rt);
+static int JS_NewClass1(JSRuntime *rt, JSClassID class_id,
+ const JSClassDef *class_def, JSAtom name);
+
+typedef enum JSStrictEqModeEnum {
+ JS_EQ_STRICT,
+ JS_EQ_SAME_VALUE,
+ JS_EQ_SAME_VALUE_ZERO,
+} JSStrictEqModeEnum;
+
+static BOOL js_strict_eq2(JSContext *ctx, JSValue op1, JSValue op2,
+ JSStrictEqModeEnum eq_mode);
+static BOOL js_strict_eq(JSContext *ctx, JSValue op1, JSValue op2);
+static BOOL js_same_value(JSContext *ctx, JSValueConst op1, JSValueConst op2);
+static BOOL js_same_value_zero(JSContext *ctx, JSValueConst op1, JSValueConst op2);
+static JSValue JS_ToObject(JSContext *ctx, JSValueConst val);
+static JSValue JS_ToObjectFree(JSContext *ctx, JSValue val);
+static JSProperty *add_property(JSContext *ctx,
+ JSObject *p, JSAtom prop, int prop_flags);
+static JSValue JS_NewBigInt(JSContext *ctx);
+static inline bf_t *JS_GetBigInt(JSValueConst val)
+{
+ JSBigFloat *p = JS_VALUE_GET_PTR(val);
+ return &p->num;
+}
+static JSValue JS_CompactBigInt1(JSContext *ctx, JSValue val,
+ BOOL convert_to_safe_integer);
+static JSValue JS_CompactBigInt(JSContext *ctx, JSValue val);
+static int JS_ToBigInt64Free(JSContext *ctx, int64_t *pres, JSValue val);
+static bf_t *JS_ToBigInt(JSContext *ctx, bf_t *buf, JSValueConst val);
+static void JS_FreeBigInt(JSContext *ctx, bf_t *a, bf_t *buf);
+#ifdef CONFIG_BIGNUM
+static void js_float_env_finalizer(JSRuntime *rt, JSValue val);
+static JSValue JS_NewBigFloat(JSContext *ctx);
+static inline bf_t *JS_GetBigFloat(JSValueConst val)
+{
+ JSBigFloat *p = JS_VALUE_GET_PTR(val);
+ return &p->num;
+}
+static JSValue JS_NewBigDecimal(JSContext *ctx);
+static inline bfdec_t *JS_GetBigDecimal(JSValueConst val)
+{
+ JSBigDecimal *p = JS_VALUE_GET_PTR(val);
+ return &p->num;
+}
+static bf_t *JS_ToBigFloat(JSContext *ctx, bf_t *buf, JSValueConst val);
+static JSValue JS_ToBigDecimalFree(JSContext *ctx, JSValue val,
+ BOOL allow_null_or_undefined);
+static bfdec_t *JS_ToBigDecimal(JSContext *ctx, JSValueConst val);
+#endif
+JSValue JS_ThrowOutOfMemory(JSContext *ctx);
+static JSValue JS_ThrowTypeErrorRevokedProxy(JSContext *ctx);
+static JSValue js_proxy_getPrototypeOf(JSContext *ctx, JSValueConst obj);
+static int js_proxy_setPrototypeOf(JSContext *ctx, JSValueConst obj,
+ JSValueConst proto_val, BOOL throw_flag);
+static int js_proxy_isExtensible(JSContext *ctx, JSValueConst obj);
+static int js_proxy_preventExtensions(JSContext *ctx, JSValueConst obj);
+static int js_proxy_isArray(JSContext *ctx, JSValueConst obj);
+static int JS_CreateProperty(JSContext *ctx, JSObject *p,
+ JSAtom prop, JSValueConst val,
+ JSValueConst getter, JSValueConst setter,
+ int flags);
+static int js_string_memcmp(const JSString *p1, const JSString *p2, int len);
+static void reset_weak_ref(JSRuntime *rt, JSObject *p);
+static JSValue js_array_buffer_constructor3(JSContext *ctx,
+ JSValueConst new_target,
+ uint64_t len, JSClassID class_id,
+ uint8_t *buf,
+ JSFreeArrayBufferDataFunc *free_func,
+ void *opaque, BOOL alloc_flag);
+static JSArrayBuffer *js_get_array_buffer(JSContext *ctx, JSValueConst obj);
+static JSValue js_typed_array_constructor(JSContext *ctx,
+ JSValueConst this_val,
+ int argc, JSValueConst *argv,
+ int classid);
+static JSValue js_typed_array_constructor_ta(JSContext *ctx,
+ JSValueConst new_target,
+ JSValueConst src_obj,
+ int classid);
+static BOOL typed_array_is_detached(JSContext *ctx, JSObject *p);
+static uint32_t typed_array_get_length(JSContext *ctx, JSObject *p);
+static JSValue JS_ThrowTypeErrorDetachedArrayBuffer(JSContext *ctx);
+static JSVarRef *get_var_ref(JSContext *ctx, JSStackFrame *sf, int var_idx,
+ BOOL is_arg);
+static void __async_func_free(JSRuntime *rt, JSAsyncFunctionState *s);
+static void async_func_free(JSRuntime *rt, JSAsyncFunctionState *s);
+static JSValue js_generator_function_call(JSContext *ctx, JSValueConst func_obj,
+ JSValueConst this_obj,
+ int argc, JSValueConst *argv,
+ int flags);
+static void js_async_function_resolve_finalizer(JSRuntime *rt, JSValue val);
+static void js_async_function_resolve_mark(JSRuntime *rt, JSValueConst val,
+ JS_MarkFunc *mark_func);
+static JSValue JS_EvalInternal(JSContext *ctx, JSValueConst this_obj,
+ const char *input, size_t input_len,
+ const char *filename, int flags, int scope_idx);
+static void js_free_module_def(JSContext *ctx, JSModuleDef *m);
+static void js_mark_module_def(JSRuntime *rt, JSModuleDef *m,
+ JS_MarkFunc *mark_func);
+static JSValue js_import_meta(JSContext *ctx);
+static JSValue js_dynamic_import(JSContext *ctx, JSValueConst specifier);
+static void free_var_ref(JSRuntime *rt, JSVarRef *var_ref);
+static JSValue js_new_promise_capability(JSContext *ctx,
+ JSValue *resolving_funcs,
+ JSValueConst ctor);
+static __exception int perform_promise_then(JSContext *ctx,
+ JSValueConst promise,
+ JSValueConst *resolve_reject,
+ JSValueConst *cap_resolving_funcs);
+static JSValue js_promise_resolve(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int magic);
+static JSValue js_promise_then(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv);
+static int js_string_compare(JSContext *ctx,
+ const JSString *p1, const JSString *p2);
+static JSValue JS_ToNumber(JSContext *ctx, JSValueConst val);
+static int JS_SetPropertyValue(JSContext *ctx, JSValueConst this_obj,
+ JSValue prop, JSValue val, int flags);
+static int JS_NumberIsInteger(JSContext *ctx, JSValueConst val);
+static BOOL JS_NumberIsNegativeOrMinusZero(JSContext *ctx, JSValueConst val);
+static JSValue JS_ToNumberFree(JSContext *ctx, JSValue val);
+static int JS_GetOwnPropertyInternal(JSContext *ctx, JSPropertyDescriptor *desc,
+ JSObject *p, JSAtom prop);
+static void js_free_desc(JSContext *ctx, JSPropertyDescriptor *desc);
+static void JS_AddIntrinsicBasicObjects(JSContext *ctx);
+static void js_free_shape(JSRuntime *rt, JSShape *sh);
+static void js_free_shape_null(JSRuntime *rt, JSShape *sh);
+static int js_shape_prepare_update(JSContext *ctx, JSObject *p,
+ JSShapeProperty **pprs);
+static int init_shape_hash(JSRuntime *rt);
+static __exception int js_get_length32(JSContext *ctx, uint32_t *pres,
+ JSValueConst obj);
+static __exception int js_get_length64(JSContext *ctx, int64_t *pres,
+ JSValueConst obj);
+static void free_arg_list(JSContext *ctx, JSValue *tab, uint32_t len);
+static JSValue *build_arg_list(JSContext *ctx, uint32_t *plen,
+ JSValueConst array_arg);
+static BOOL js_get_fast_array(JSContext *ctx, JSValueConst obj,
+ JSValue **arrpp, uint32_t *countp);
+static JSValue JS_CreateAsyncFromSyncIterator(JSContext *ctx,
+ JSValueConst sync_iter);
+static void js_c_function_data_finalizer(JSRuntime *rt, JSValue val);
+static void js_c_function_data_mark(JSRuntime *rt, JSValueConst val,
+ JS_MarkFunc *mark_func);
+static JSValue js_c_function_data_call(JSContext *ctx, JSValueConst func_obj,
+ JSValueConst this_val,
+ int argc, JSValueConst *argv, int flags);
+static JSAtom js_symbol_to_atom(JSContext *ctx, JSValue val);
+static void add_gc_object(JSRuntime *rt, JSGCObjectHeader *h,
+ JSGCObjectTypeEnum type);
+static void remove_gc_object(JSGCObjectHeader *h);
+static JSValue js_instantiate_prototype(JSContext *ctx, JSObject *p, JSAtom atom, void *opaque);
+static JSValue js_module_ns_autoinit(JSContext *ctx, JSObject *p, JSAtom atom,
+ void *opaque);
+static JSValue JS_InstantiateFunctionListItem2(JSContext *ctx, JSObject *p,
+ JSAtom atom, void *opaque);
+void JS_SetUncatchableError(JSContext *ctx, JSValueConst val, BOOL flag);
+static JSValue js_object_groupBy(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int is_map);
+
+static const JSClassExoticMethods js_arguments_exotic_methods;
+static const JSClassExoticMethods js_string_exotic_methods;
+static const JSClassExoticMethods js_proxy_exotic_methods;
+static const JSClassExoticMethods js_module_ns_exotic_methods;
+static JSClassID js_class_id_alloc = JS_CLASS_INIT_COUNT;
+
+static void js_trigger_gc(JSRuntime *rt, size_t size)
+{
+ BOOL force_gc;
+#ifdef FORCE_GC_AT_MALLOC
+ force_gc = TRUE;
+#else
+ force_gc = ((rt->malloc_state.malloc_size + size) >
+ rt->malloc_gc_threshold);
+#endif
+ if (force_gc) {
+#ifdef DUMP_GC
+ printf("GC: size=%" PRIu64 "\n",
+ (uint64_t)rt->malloc_state.malloc_size);
+#endif
+ JS_RunGC(rt);
+ rt->malloc_gc_threshold = rt->malloc_state.malloc_size +
+ (rt->malloc_state.malloc_size >> 1);
+ }
+}
+
+static size_t js_malloc_usable_size_unknown(const void *ptr)
+{
+ return 0;
+}
+
+void *js_malloc_rt(JSRuntime *rt, size_t size)
+{
+ return rt->mf.js_malloc(&rt->malloc_state, size);
+}
+
+void js_free_rt(JSRuntime *rt, void *ptr)
+{
+ rt->mf.js_free(&rt->malloc_state, ptr);
+}
+
+void *js_realloc_rt(JSRuntime *rt, void *ptr, size_t size)
+{
+ return rt->mf.js_realloc(&rt->malloc_state, ptr, size);
+}
+
+size_t js_malloc_usable_size_rt(JSRuntime *rt, const void *ptr)
+{
+ return rt->mf.js_malloc_usable_size(ptr);
+}
+
+void *js_mallocz_rt(JSRuntime *rt, size_t size)
+{
+ void *ptr;
+ ptr = js_malloc_rt(rt, size);
+ if (!ptr)
+ return NULL;
+ return memset(ptr, 0, size);
+}
+
+/* called by libbf */
+static void *js_bf_realloc(void *opaque, void *ptr, size_t size)
+{
+ JSRuntime *rt = opaque;
+ return js_realloc_rt(rt, ptr, size);
+}
+
+/* Throw out of memory in case of error */
+void *js_malloc(JSContext *ctx, size_t size)
+{
+ void *ptr;
+ ptr = js_malloc_rt(ctx->rt, size);
+ if (unlikely(!ptr)) {
+ JS_ThrowOutOfMemory(ctx);
+ return NULL;
+ }
+ return ptr;
+}
+
+/* Throw out of memory in case of error */
+void *js_mallocz(JSContext *ctx, size_t size)
+{
+ void *ptr;
+ ptr = js_mallocz_rt(ctx->rt, size);
+ if (unlikely(!ptr)) {
+ JS_ThrowOutOfMemory(ctx);
+ return NULL;
+ }
+ return ptr;
+}
+
+void js_free(JSContext *ctx, void *ptr)
+{
+ js_free_rt(ctx->rt, ptr);
+}
+
+/* Throw out of memory in case of error */
+void *js_realloc(JSContext *ctx, void *ptr, size_t size)
+{
+ void *ret;
+ ret = js_realloc_rt(ctx->rt, ptr, size);
+ if (unlikely(!ret && size != 0)) {
+ JS_ThrowOutOfMemory(ctx);
+ return NULL;
+ }
+ return ret;
+}
+
+/* store extra allocated size in *pslack if successful */
+void *js_realloc2(JSContext *ctx, void *ptr, size_t size, size_t *pslack)
+{
+ void *ret;
+ ret = js_realloc_rt(ctx->rt, ptr, size);
+ if (unlikely(!ret && size != 0)) {
+ JS_ThrowOutOfMemory(ctx);
+ return NULL;
+ }
+ if (pslack) {
+ size_t new_size = js_malloc_usable_size_rt(ctx->rt, ret);
+ *pslack = (new_size > size) ? new_size - size : 0;
+ }
+ return ret;
+}
+
+size_t js_malloc_usable_size(JSContext *ctx, const void *ptr)
+{
+ return js_malloc_usable_size_rt(ctx->rt, ptr);
+}
+
+/* Throw out of memory exception in case of error */
+char *js_strndup(JSContext *ctx, const char *s, size_t n)
+{
+ char *ptr;
+ ptr = js_malloc(ctx, n + 1);
+ if (ptr) {
+ memcpy(ptr, s, n);
+ ptr[n] = '\0';
+ }
+ return ptr;
+}
+
+char *js_strdup(JSContext *ctx, const char *str)
+{
+ return js_strndup(ctx, str, strlen(str));
+}
+
+static no_inline int js_realloc_array(JSContext *ctx, void **parray,
+ int elem_size, int *psize, int req_size)
+{
+ int new_size;
+ size_t slack;
+ void *new_array;
+ /* XXX: potential arithmetic overflow */
+ new_size = max_int(req_size, *psize * 3 / 2);
+ new_array = js_realloc2(ctx, *parray, new_size * elem_size, &slack);
+ if (!new_array)
+ return -1;
+ new_size += slack / elem_size;
+ *psize = new_size;
+ *parray = new_array;
+ return 0;
+}
+
+/* resize the array and update its size if req_size > *psize */
+static inline int js_resize_array(JSContext *ctx, void **parray, int elem_size,
+ int *psize, int req_size)
+{
+ if (unlikely(req_size > *psize))
+ return js_realloc_array(ctx, parray, elem_size, psize, req_size);
+ else
+ return 0;
+}
+
+static inline void js_dbuf_init(JSContext *ctx, DynBuf *s)
+{
+ dbuf_init2(s, ctx->rt, (DynBufReallocFunc *)js_realloc_rt);
+}
+
+static inline int is_digit(int c) {
+ return c >= '0' && c <= '9';
+}
+
+static inline int string_get(const JSString *p, int idx) {
+ return p->is_wide_char ? p->u.str16[idx] : p->u.str8[idx];
+}
+
+typedef struct JSClassShortDef {
+ JSAtom class_name;
+ JSClassFinalizer *finalizer;
+ JSClassGCMark *gc_mark;
+} JSClassShortDef;
+
+static JSClassShortDef const js_std_class_def[] = {
+ { JS_ATOM_Object, NULL, NULL }, /* JS_CLASS_OBJECT */
+ { JS_ATOM_Array, js_array_finalizer, js_array_mark }, /* JS_CLASS_ARRAY */
+ { JS_ATOM_Error, NULL, NULL }, /* JS_CLASS_ERROR */
+ { JS_ATOM_Number, js_object_data_finalizer, js_object_data_mark }, /* JS_CLASS_NUMBER */
+ { JS_ATOM_String, js_object_data_finalizer, js_object_data_mark }, /* JS_CLASS_STRING */
+ { JS_ATOM_Boolean, js_object_data_finalizer, js_object_data_mark }, /* JS_CLASS_BOOLEAN */
+ { JS_ATOM_Symbol, js_object_data_finalizer, js_object_data_mark }, /* JS_CLASS_SYMBOL */
+ { JS_ATOM_Arguments, js_array_finalizer, js_array_mark }, /* JS_CLASS_ARGUMENTS */
+ { JS_ATOM_Arguments, NULL, NULL }, /* JS_CLASS_MAPPED_ARGUMENTS */
+ { JS_ATOM_Date, js_object_data_finalizer, js_object_data_mark }, /* JS_CLASS_DATE */
+ { JS_ATOM_Object, NULL, NULL }, /* JS_CLASS_MODULE_NS */
+ { JS_ATOM_Function, js_c_function_finalizer, js_c_function_mark }, /* JS_CLASS_C_FUNCTION */
+ { JS_ATOM_Function, js_bytecode_function_finalizer, js_bytecode_function_mark }, /* JS_CLASS_BYTECODE_FUNCTION */
+ { JS_ATOM_Function, js_bound_function_finalizer, js_bound_function_mark }, /* JS_CLASS_BOUND_FUNCTION */
+ { JS_ATOM_Function, js_c_function_data_finalizer, js_c_function_data_mark }, /* JS_CLASS_C_FUNCTION_DATA */
+ { JS_ATOM_GeneratorFunction, js_bytecode_function_finalizer, js_bytecode_function_mark }, /* JS_CLASS_GENERATOR_FUNCTION */
+ { JS_ATOM_ForInIterator, js_for_in_iterator_finalizer, js_for_in_iterator_mark }, /* JS_CLASS_FOR_IN_ITERATOR */
+ { JS_ATOM_RegExp, js_regexp_finalizer, NULL }, /* JS_CLASS_REGEXP */
+ { JS_ATOM_ArrayBuffer, js_array_buffer_finalizer, NULL }, /* JS_CLASS_ARRAY_BUFFER */
+ { JS_ATOM_SharedArrayBuffer, js_array_buffer_finalizer, NULL }, /* JS_CLASS_SHARED_ARRAY_BUFFER */
+ { JS_ATOM_Uint8ClampedArray, js_typed_array_finalizer, js_typed_array_mark }, /* JS_CLASS_UINT8C_ARRAY */
+ { JS_ATOM_Int8Array, js_typed_array_finalizer, js_typed_array_mark }, /* JS_CLASS_INT8_ARRAY */
+ { JS_ATOM_Uint8Array, js_typed_array_finalizer, js_typed_array_mark }, /* JS_CLASS_UINT8_ARRAY */
+ { JS_ATOM_Int16Array, js_typed_array_finalizer, js_typed_array_mark }, /* JS_CLASS_INT16_ARRAY */
+ { JS_ATOM_Uint16Array, js_typed_array_finalizer, js_typed_array_mark }, /* JS_CLASS_UINT16_ARRAY */
+ { JS_ATOM_Int32Array, js_typed_array_finalizer, js_typed_array_mark }, /* JS_CLASS_INT32_ARRAY */
+ { JS_ATOM_Uint32Array, js_typed_array_finalizer, js_typed_array_mark }, /* JS_CLASS_UINT32_ARRAY */
+ { JS_ATOM_BigInt64Array, js_typed_array_finalizer, js_typed_array_mark }, /* JS_CLASS_BIG_INT64_ARRAY */
+ { JS_ATOM_BigUint64Array, js_typed_array_finalizer, js_typed_array_mark }, /* JS_CLASS_BIG_UINT64_ARRAY */
+ { JS_ATOM_Float32Array, js_typed_array_finalizer, js_typed_array_mark }, /* JS_CLASS_FLOAT32_ARRAY */
+ { JS_ATOM_Float64Array, js_typed_array_finalizer, js_typed_array_mark }, /* JS_CLASS_FLOAT64_ARRAY */
+ { JS_ATOM_DataView, js_typed_array_finalizer, js_typed_array_mark }, /* JS_CLASS_DATAVIEW */
+ { JS_ATOM_BigInt, js_object_data_finalizer, js_object_data_mark }, /* JS_CLASS_BIG_INT */
+#ifdef CONFIG_BIGNUM
+ { JS_ATOM_BigFloat, js_object_data_finalizer, js_object_data_mark }, /* JS_CLASS_BIG_FLOAT */
+ { JS_ATOM_BigFloatEnv, js_float_env_finalizer, NULL }, /* JS_CLASS_FLOAT_ENV */
+ { JS_ATOM_BigDecimal, js_object_data_finalizer, js_object_data_mark }, /* JS_CLASS_BIG_DECIMAL */
+ { JS_ATOM_OperatorSet, js_operator_set_finalizer, js_operator_set_mark }, /* JS_CLASS_OPERATOR_SET */
+#endif
+ { JS_ATOM_Map, js_map_finalizer, js_map_mark }, /* JS_CLASS_MAP */
+ { JS_ATOM_Set, js_map_finalizer, js_map_mark }, /* JS_CLASS_SET */
+ { JS_ATOM_WeakMap, js_map_finalizer, js_map_mark }, /* JS_CLASS_WEAKMAP */
+ { JS_ATOM_WeakSet, js_map_finalizer, js_map_mark }, /* JS_CLASS_WEAKSET */
+ { JS_ATOM_Map_Iterator, js_map_iterator_finalizer, js_map_iterator_mark }, /* JS_CLASS_MAP_ITERATOR */
+ { JS_ATOM_Set_Iterator, js_map_iterator_finalizer, js_map_iterator_mark }, /* JS_CLASS_SET_ITERATOR */
+ { JS_ATOM_Array_Iterator, js_array_iterator_finalizer, js_array_iterator_mark }, /* JS_CLASS_ARRAY_ITERATOR */
+ { JS_ATOM_String_Iterator, js_array_iterator_finalizer, js_array_iterator_mark }, /* JS_CLASS_STRING_ITERATOR */
+ { JS_ATOM_RegExp_String_Iterator, js_regexp_string_iterator_finalizer, js_regexp_string_iterator_mark }, /* JS_CLASS_REGEXP_STRING_ITERATOR */
+ { JS_ATOM_Generator, js_generator_finalizer, js_generator_mark }, /* JS_CLASS_GENERATOR */
+};
+
+static int init_class_range(JSRuntime *rt, JSClassShortDef const *tab,
+ int start, int count)
+{
+ JSClassDef cm_s, *cm = &cm_s;
+ int i, class_id;
+
+ for(i = 0; i < count; i++) {
+ class_id = i + start;
+ memset(cm, 0, sizeof(*cm));
+ cm->finalizer = tab[i].finalizer;
+ cm->gc_mark = tab[i].gc_mark;
+ if (JS_NewClass1(rt, class_id, cm, tab[i].class_name) < 0)
+ return -1;
+ }
+ return 0;
+}
+
+static JSValue JS_ThrowUnsupportedOperation(JSContext *ctx)
+{
+ return JS_ThrowTypeError(ctx, "unsupported operation");
+}
+
+static JSValue invalid_to_string(JSContext *ctx, JSValueConst val)
+{
+ return JS_ThrowUnsupportedOperation(ctx);
+}
+
+static JSValue invalid_from_string(JSContext *ctx, const char *buf,
+ int radix, int flags, slimb_t *pexponent)
+{
+ return JS_NAN;
+}
+
+static int invalid_unary_arith(JSContext *ctx,
+ JSValue *pres, OPCodeEnum op, JSValue op1)
+{
+ JS_FreeValue(ctx, op1);
+ JS_ThrowUnsupportedOperation(ctx);
+ return -1;
+}
+
+static int invalid_binary_arith(JSContext *ctx, OPCodeEnum op,
+ JSValue *pres, JSValue op1, JSValue op2)
+{
+ JS_FreeValue(ctx, op1);
+ JS_FreeValue(ctx, op2);
+ JS_ThrowUnsupportedOperation(ctx);
+ return -1;
+}
+
+static JSValue invalid_mul_pow10_to_float64(JSContext *ctx, const bf_t *a,
+ int64_t exponent)
+{
+ return JS_ThrowUnsupportedOperation(ctx);
+}
+
+static int invalid_mul_pow10(JSContext *ctx, JSValue *sp)
+{
+ JS_ThrowUnsupportedOperation(ctx);
+ return -1;
+}
+
+static void set_dummy_numeric_ops(JSNumericOperations *ops)
+{
+ ops->to_string = invalid_to_string;
+ ops->from_string = invalid_from_string;
+ ops->unary_arith = invalid_unary_arith;
+ ops->binary_arith = invalid_binary_arith;
+ ops->mul_pow10_to_float64 = invalid_mul_pow10_to_float64;
+ ops->mul_pow10 = invalid_mul_pow10;
+}
+
+#if !defined(CONFIG_STACK_CHECK)
+/* no stack limitation */
+static inline uintptr_t js_get_stack_pointer(void)
+{
+ return 0;
+}
+
+static inline BOOL js_check_stack_overflow(JSRuntime *rt, size_t alloca_size)
+{
+ return FALSE;
+}
+#else
+/* Note: OS and CPU dependent */
+static inline uintptr_t js_get_stack_pointer(void)
+{
+ return (uintptr_t)__builtin_frame_address(0);
+}
+
+static inline BOOL js_check_stack_overflow(JSRuntime *rt, size_t alloca_size)
+{
+ uintptr_t sp;
+ sp = js_get_stack_pointer() - alloca_size;
+ return unlikely(sp < rt->stack_limit);
+}
+#endif
+
+JSRuntime *JS_NewRuntime2(const JSMallocFunctions *mf, void *opaque)
+{
+ JSRuntime *rt;
+ JSMallocState ms;
+
+ memset(&ms, 0, sizeof(ms));
+ ms.opaque = opaque;
+ ms.malloc_limit = -1;
+
+ rt = mf->js_malloc(&ms, sizeof(JSRuntime));
+ if (!rt)
+ return NULL;
+ memset(rt, 0, sizeof(*rt));
+ rt->mf = *mf;
+ if (!rt->mf.js_malloc_usable_size) {
+ /* use dummy function if none provided */
+ rt->mf.js_malloc_usable_size = js_malloc_usable_size_unknown;
+ }
+ rt->malloc_state = ms;
+ rt->malloc_gc_threshold = 256 * 1024;
+
+ bf_context_init(&rt->bf_ctx, js_bf_realloc, rt);
+ set_dummy_numeric_ops(&rt->bigint_ops);
+#ifdef CONFIG_BIGNUM
+ set_dummy_numeric_ops(&rt->bigfloat_ops);
+ set_dummy_numeric_ops(&rt->bigdecimal_ops);
+#endif
+
+ init_list_head(&rt->context_list);
+ init_list_head(&rt->gc_obj_list);
+ init_list_head(&rt->gc_zero_ref_count_list);
+ rt->gc_phase = JS_GC_PHASE_NONE;
+
+#ifdef DUMP_LEAKS
+ init_list_head(&rt->string_list);
+#endif
+ init_list_head(&rt->job_list);
+
+ if (JS_InitAtoms(rt))
+ goto fail;
+
+ /* create the object, array and function classes */
+ if (init_class_range(rt, js_std_class_def, JS_CLASS_OBJECT,
+ countof(js_std_class_def)) < 0)
+ goto fail;
+ rt->class_array[JS_CLASS_ARGUMENTS].exotic = &js_arguments_exotic_methods;
+ rt->class_array[JS_CLASS_STRING].exotic = &js_string_exotic_methods;
+ rt->class_array[JS_CLASS_MODULE_NS].exotic = &js_module_ns_exotic_methods;
+
+ rt->class_array[JS_CLASS_C_FUNCTION].call = js_call_c_function;
+ rt->class_array[JS_CLASS_C_FUNCTION_DATA].call = js_c_function_data_call;
+ rt->class_array[JS_CLASS_BOUND_FUNCTION].call = js_call_bound_function;
+ rt->class_array[JS_CLASS_GENERATOR_FUNCTION].call = js_generator_function_call;
+ if (init_shape_hash(rt))
+ goto fail;
+
+ rt->stack_size = JS_DEFAULT_STACK_SIZE;
+ JS_UpdateStackTop(rt);
+
+ rt->current_exception = JS_NULL;
+
+ return rt;
+ fail:
+ JS_FreeRuntime(rt);
+ return NULL;
+}
+
+void *JS_GetRuntimeOpaque(JSRuntime *rt)
+{
+ return rt->user_opaque;
+}
+
+void JS_SetRuntimeOpaque(JSRuntime *rt, void *opaque)
+{
+ rt->user_opaque = opaque;
+}
+
+/* default memory allocation functions with memory limitation */
+static size_t js_def_malloc_usable_size(const void *ptr)
+{
+#if defined(__APPLE__)
+ return malloc_size(ptr);
+#elif defined(_WIN32)
+ return _msize((void *)ptr);
+#elif defined(EMSCRIPTEN)
+ return 0;
+#elif defined(__linux__)
+ return malloc_usable_size((void *)ptr);
+#else
+ /* change this to `return 0;` if compilation fails */
+ return malloc_usable_size((void *)ptr);
+#endif
+}
+
+static void *js_def_malloc(JSMallocState *s, size_t size)
+{
+ void *ptr;
+
+ /* Do not allocate zero bytes: behavior is platform dependent */
+ assert(size != 0);
+
+ if (unlikely(s->malloc_size + size > s->malloc_limit))
+ return NULL;
+
+ ptr = malloc(size);
+ if (!ptr)
+ return NULL;
+
+ s->malloc_count++;
+ s->malloc_size += js_def_malloc_usable_size(ptr) + MALLOC_OVERHEAD;
+ return ptr;
+}
+
+static void js_def_free(JSMallocState *s, void *ptr)
+{
+ if (!ptr)
+ return;
+
+ s->malloc_count--;
+ s->malloc_size -= js_def_malloc_usable_size(ptr) + MALLOC_OVERHEAD;
+ free(ptr);
+}
+
+static void *js_def_realloc(JSMallocState *s, void *ptr, size_t size)
+{
+ size_t old_size;
+
+ if (!ptr) {
+ if (size == 0)
+ return NULL;
+ return js_def_malloc(s, size);
+ }
+ old_size = js_def_malloc_usable_size(ptr);
+ if (size == 0) {
+ s->malloc_count--;
+ s->malloc_size -= old_size + MALLOC_OVERHEAD;
+ free(ptr);
+ return NULL;
+ }
+ if (s->malloc_size + size - old_size > s->malloc_limit)
+ return NULL;
+
+ ptr = realloc(ptr, size);
+ if (!ptr)
+ return NULL;
+
+ s->malloc_size += js_def_malloc_usable_size(ptr) - old_size;
+ return ptr;
+}
+
+static const JSMallocFunctions def_malloc_funcs = {
+ js_def_malloc,
+ js_def_free,
+ js_def_realloc,
+ js_def_malloc_usable_size,
+};
+
+JSRuntime *JS_NewRuntime(void)
+{
+ return JS_NewRuntime2(&def_malloc_funcs, NULL);
+}
+
+void JS_SetMemoryLimit(JSRuntime *rt, size_t limit)
+{
+ rt->malloc_state.malloc_limit = limit;
+}
+
+/* use -1 to disable automatic GC */
+void JS_SetGCThreshold(JSRuntime *rt, size_t gc_threshold)
+{
+ rt->malloc_gc_threshold = gc_threshold;
+}
+
+#define malloc(s) malloc_is_forbidden(s)
+#define free(p) free_is_forbidden(p)
+#define realloc(p,s) realloc_is_forbidden(p,s)
+
+void JS_SetInterruptHandler(JSRuntime *rt, JSInterruptHandler *cb, void *opaque)
+{
+ rt->interrupt_handler = cb;
+ rt->interrupt_opaque = opaque;
+}
+
+void JS_SetCanBlock(JSRuntime *rt, BOOL can_block)
+{
+ rt->can_block = can_block;
+}
+
+void JS_SetSharedArrayBufferFunctions(JSRuntime *rt,
+ const JSSharedArrayBufferFunctions *sf)
+{
+ rt->sab_funcs = *sf;
+}
+
+/* return 0 if OK, < 0 if exception */
+int JS_EnqueueJob(JSContext *ctx, JSJobFunc *job_func,
+ int argc, JSValueConst *argv)
+{
+ JSRuntime *rt = ctx->rt;
+ JSJobEntry *e;
+ int i;
+
+ e = js_malloc(ctx, sizeof(*e) + argc * sizeof(JSValue));
+ if (!e)
+ return -1;
+ e->ctx = ctx;
+ e->job_func = job_func;
+ e->argc = argc;
+ for(i = 0; i < argc; i++) {
+ e->argv[i] = JS_DupValue(ctx, argv[i]);
+ }
+ list_add_tail(&e->link, &rt->job_list);
+ return 0;
+}
+
+BOOL JS_IsJobPending(JSRuntime *rt)
+{
+ return !list_empty(&rt->job_list);
+}
+
+/* return < 0 if exception, 0 if no job pending, 1 if a job was
+ executed successfully. the context of the job is stored in '*pctx' */
+int JS_ExecutePendingJob(JSRuntime *rt, JSContext **pctx)
+{
+ JSContext *ctx;
+ JSJobEntry *e;
+ JSValue res;
+ int i, ret;
+
+ if (list_empty(&rt->job_list)) {
+ *pctx = NULL;
+ return 0;
+ }
+
+ /* get the first pending job and execute it */
+ e = list_entry(rt->job_list.next, JSJobEntry, link);
+ list_del(&e->link);
+ ctx = e->ctx;
+ res = e->job_func(e->ctx, e->argc, (JSValueConst *)e->argv);
+ for(i = 0; i < e->argc; i++)
+ JS_FreeValue(ctx, e->argv[i]);
+ if (JS_IsException(res))
+ ret = -1;
+ else
+ ret = 1;
+ JS_FreeValue(ctx, res);
+ js_free(ctx, e);
+ *pctx = ctx;
+ return ret;
+}
+
+static inline uint32_t atom_get_free(const JSAtomStruct *p)
+{
+ return (uintptr_t)p >> 1;
+}
+
+static inline BOOL atom_is_free(const JSAtomStruct *p)
+{
+ return (uintptr_t)p & 1;
+}
+
+static inline JSAtomStruct *atom_set_free(uint32_t v)
+{
+ return (JSAtomStruct *)(((uintptr_t)v << 1) | 1);
+}
+
+/* Note: the string contents are uninitialized */
+static JSString *js_alloc_string_rt(JSRuntime *rt, int max_len, int is_wide_char)
+{
+ JSString *str;
+ str = js_malloc_rt(rt, sizeof(JSString) + (max_len << is_wide_char) + 1 - is_wide_char);
+ if (unlikely(!str))
+ return NULL;
+ str->header.ref_count = 1;
+ str->is_wide_char = is_wide_char;
+ str->len = max_len;
+ str->atom_type = 0;
+ str->hash = 0; /* optional but costless */
+ str->hash_next = 0; /* optional */
+#ifdef DUMP_LEAKS
+ list_add_tail(&str->link, &rt->string_list);
+#endif
+ return str;
+}
+
+static JSString *js_alloc_string(JSContext *ctx, int max_len, int is_wide_char)
+{
+ JSString *p;
+ p = js_alloc_string_rt(ctx->rt, max_len, is_wide_char);
+ if (unlikely(!p)) {
+ JS_ThrowOutOfMemory(ctx);
+ return NULL;
+ }
+ return p;
+}
+
+/* same as JS_FreeValueRT() but faster */
+static inline void js_free_string(JSRuntime *rt, JSString *str)
+{
+ if (--str->header.ref_count <= 0) {
+ if (str->atom_type) {
+ JS_FreeAtomStruct(rt, str);
+ } else {
+#ifdef DUMP_LEAKS
+ list_del(&str->link);
+#endif
+ js_free_rt(rt, str);
+ }
+ }
+}
+
+void JS_SetRuntimeInfo(JSRuntime *rt, const char *s)
+{
+ if (rt)
+ rt->rt_info = s;
+}
+
+void JS_FreeRuntime(JSRuntime *rt)
+{
+ struct list_head *el, *el1;
+ int i;
+
+ JS_FreeValueRT(rt, rt->current_exception);
+
+ list_for_each_safe(el, el1, &rt->job_list) {
+ JSJobEntry *e = list_entry(el, JSJobEntry, link);
+ for(i = 0; i < e->argc; i++)
+ JS_FreeValueRT(rt, e->argv[i]);
+ js_free_rt(rt, e);
+ }
+ init_list_head(&rt->job_list);
+
+ JS_RunGC(rt);
+
+#ifdef DUMP_LEAKS
+ /* leaking objects */
+ {
+ BOOL header_done;
+ JSGCObjectHeader *p;
+ int count;
+
+ /* remove the internal refcounts to display only the object
+ referenced externally */
+ list_for_each(el, &rt->gc_obj_list) {
+ p = list_entry(el, JSGCObjectHeader, link);
+ p->mark = 0;
+ }
+ gc_decref(rt);
+
+ header_done = FALSE;
+ list_for_each(el, &rt->gc_obj_list) {
+ p = list_entry(el, JSGCObjectHeader, link);
+ if (p->ref_count != 0) {
+ if (!header_done) {
+ printf("Object leaks:\n");
+ JS_DumpObjectHeader(rt);
+ header_done = TRUE;
+ }
+ JS_DumpGCObject(rt, p);
+ }
+ }
+
+ count = 0;
+ list_for_each(el, &rt->gc_obj_list) {
+ p = list_entry(el, JSGCObjectHeader, link);
+ if (p->ref_count == 0) {
+ count++;
+ }
+ }
+ if (count != 0)
+ printf("Secondary object leaks: %d\n", count);
+ }
+#endif
+ assert(list_empty(&rt->gc_obj_list));
+
+ /* free the classes */
+ for(i = 0; i < rt->class_count; i++) {
+ JSClass *cl = &rt->class_array[i];
+ if (cl->class_id != 0) {
+ JS_FreeAtomRT(rt, cl->class_name);
+ }
+ }
+ js_free_rt(rt, rt->class_array);
+
+ bf_context_end(&rt->bf_ctx);
+
+#ifdef DUMP_LEAKS
+ /* only the atoms defined in JS_InitAtoms() should be left */
+ {
+ BOOL header_done = FALSE;
+
+ for(i = 0; i < rt->atom_size; i++) {
+ JSAtomStruct *p = rt->atom_array[i];
+ if (!atom_is_free(p) /* && p->str*/) {
+ if (i >= JS_ATOM_END || p->header.ref_count != 1) {
+ if (!header_done) {
+ header_done = TRUE;
+ if (rt->rt_info) {
+ printf("%s:1: atom leakage:", rt->rt_info);
+ } else {
+ printf("Atom leaks:\n"
+ " %6s %6s %s\n",
+ "ID", "REFCNT", "NAME");
+ }
+ }
+ if (rt->rt_info) {
+ printf(" ");
+ } else {
+ printf(" %6u %6u ", i, p->header.ref_count);
+ }
+ switch (p->atom_type) {
+ case JS_ATOM_TYPE_STRING:
+ JS_DumpString(rt, p);
+ break;
+ case JS_ATOM_TYPE_GLOBAL_SYMBOL:
+ printf("Symbol.for(");
+ JS_DumpString(rt, p);
+ printf(")");
+ break;
+ case JS_ATOM_TYPE_SYMBOL:
+ if (p->hash == JS_ATOM_HASH_SYMBOL) {
+ printf("Symbol(");
+ JS_DumpString(rt, p);
+ printf(")");
+ } else {
+ printf("Private(");
+ JS_DumpString(rt, p);
+ printf(")");
+ }
+ break;
+ }
+ if (rt->rt_info) {
+ printf(":%u", p->header.ref_count);
+ } else {
+ printf("\n");
+ }
+ }
+ }
+ }
+ if (rt->rt_info && header_done)
+ printf("\n");
+ }
+#endif
+
+ /* free the atoms */
+ for(i = 0; i < rt->atom_size; i++) {
+ JSAtomStruct *p = rt->atom_array[i];
+ if (!atom_is_free(p)) {
+#ifdef DUMP_LEAKS
+ list_del(&p->link);
+#endif
+ js_free_rt(rt, p);
+ }
+ }
+ js_free_rt(rt, rt->atom_array);
+ js_free_rt(rt, rt->atom_hash);
+ js_free_rt(rt, rt->shape_hash);
+#ifdef DUMP_LEAKS
+ if (!list_empty(&rt->string_list)) {
+ if (rt->rt_info) {
+ printf("%s:1: string leakage:", rt->rt_info);
+ } else {
+ printf("String leaks:\n"
+ " %6s %s\n",
+ "REFCNT", "VALUE");
+ }
+ list_for_each_safe(el, el1, &rt->string_list) {
+ JSString *str = list_entry(el, JSString, link);
+ if (rt->rt_info) {
+ printf(" ");
+ } else {
+ printf(" %6u ", str->header.ref_count);
+ }
+ JS_DumpString(rt, str);
+ if (rt->rt_info) {
+ printf(":%u", str->header.ref_count);
+ } else {
+ printf("\n");
+ }
+ list_del(&str->link);
+ js_free_rt(rt, str);
+ }
+ if (rt->rt_info)
+ printf("\n");
+ }
+ {
+ JSMallocState *s = &rt->malloc_state;
+ if (s->malloc_count > 1) {
+ if (rt->rt_info)
+ printf("%s:1: ", rt->rt_info);
+ printf("Memory leak: %"PRIu64" bytes lost in %"PRIu64" block%s\n",
+ (uint64_t)(s->malloc_size - sizeof(JSRuntime)),
+ (uint64_t)(s->malloc_count - 1), &"s"[s->malloc_count == 2]);
+ }
+ }
+#endif
+
+ {
+ JSMallocState ms = rt->malloc_state;
+ rt->mf.js_free(&ms, rt);
+ }
+}
+
+JSContext *JS_NewContextRaw(JSRuntime *rt)
+{
+ JSContext *ctx;
+ int i;
+
+ ctx = js_mallocz_rt(rt, sizeof(JSContext));
+ if (!ctx)
+ return NULL;
+ ctx->header.ref_count = 1;
+ add_gc_object(rt, &ctx->header, JS_GC_OBJ_TYPE_JS_CONTEXT);
+
+ ctx->class_proto = js_malloc_rt(rt, sizeof(ctx->class_proto[0]) *
+ rt->class_count);
+ if (!ctx->class_proto) {
+ js_free_rt(rt, ctx);
+ return NULL;
+ }
+ ctx->rt = rt;
+ list_add_tail(&ctx->link, &rt->context_list);
+ ctx->bf_ctx = &rt->bf_ctx;
+#ifdef CONFIG_BIGNUM
+ ctx->fp_env.prec = 113;
+ ctx->fp_env.flags = bf_set_exp_bits(15) | BF_RNDN | BF_FLAG_SUBNORMAL;
+#endif
+ for(i = 0; i < rt->class_count; i++)
+ ctx->class_proto[i] = JS_NULL;
+ ctx->array_ctor = JS_NULL;
+ ctx->regexp_ctor = JS_NULL;
+ ctx->promise_ctor = JS_NULL;
+ init_list_head(&ctx->loaded_modules);
+
+ JS_AddIntrinsicBasicObjects(ctx);
+ return ctx;
+}
+
+JSContext *JS_NewContext(JSRuntime *rt)
+{
+ JSContext *ctx;
+
+ ctx = JS_NewContextRaw(rt);
+ if (!ctx)
+ return NULL;
+
+ JS_AddIntrinsicBaseObjects(ctx);
+ JS_AddIntrinsicDate(ctx);
+ JS_AddIntrinsicEval(ctx);
+ JS_AddIntrinsicStringNormalize(ctx);
+ JS_AddIntrinsicRegExp(ctx);
+ JS_AddIntrinsicJSON(ctx);
+ JS_AddIntrinsicProxy(ctx);
+ JS_AddIntrinsicMapSet(ctx);
+ JS_AddIntrinsicTypedArrays(ctx);
+ JS_AddIntrinsicPromise(ctx);
+ JS_AddIntrinsicBigInt(ctx);
+ return ctx;
+}
+
+void *JS_GetContextOpaque(JSContext *ctx)
+{
+ return ctx->user_opaque;
+}
+
+void JS_SetContextOpaque(JSContext *ctx, void *opaque)
+{
+ ctx->user_opaque = opaque;
+}
+
+/* set the new value and free the old value after (freeing the value
+ can reallocate the object data) */
+static inline void set_value(JSContext *ctx, JSValue *pval, JSValue new_val)
+{
+ JSValue old_val;
+ old_val = *pval;
+ *pval = new_val;
+ JS_FreeValue(ctx, old_val);
+}
+
+void JS_SetClassProto(JSContext *ctx, JSClassID class_id, JSValue obj)
+{
+ JSRuntime *rt = ctx->rt;
+ assert(class_id < rt->class_count);
+ set_value(ctx, &ctx->class_proto[class_id], obj);
+}
+
+JSValue JS_GetClassProto(JSContext *ctx, JSClassID class_id)
+{
+ JSRuntime *rt = ctx->rt;
+ assert(class_id < rt->class_count);
+ return JS_DupValue(ctx, ctx->class_proto[class_id]);
+}
+
+typedef enum JSFreeModuleEnum {
+ JS_FREE_MODULE_ALL,
+ JS_FREE_MODULE_NOT_RESOLVED,
+} JSFreeModuleEnum;
+
+/* XXX: would be more efficient with separate module lists */
+static void js_free_modules(JSContext *ctx, JSFreeModuleEnum flag)
+{
+ struct list_head *el, *el1;
+ list_for_each_safe(el, el1, &ctx->loaded_modules) {
+ JSModuleDef *m = list_entry(el, JSModuleDef, link);
+ if (flag == JS_FREE_MODULE_ALL ||
+ (flag == JS_FREE_MODULE_NOT_RESOLVED && !m->resolved)) {
+ js_free_module_def(ctx, m);
+ }
+ }
+}
+
+JSContext *JS_DupContext(JSContext *ctx)
+{
+ ctx->header.ref_count++;
+ return ctx;
+}
+
+/* used by the GC */
+static void JS_MarkContext(JSRuntime *rt, JSContext *ctx,
+ JS_MarkFunc *mark_func)
+{
+ int i;
+ struct list_head *el;
+
+ /* modules are not seen by the GC, so we directly mark the objects
+ referenced by each module */
+ list_for_each(el, &ctx->loaded_modules) {
+ JSModuleDef *m = list_entry(el, JSModuleDef, link);
+ js_mark_module_def(rt, m, mark_func);
+ }
+
+ JS_MarkValue(rt, ctx->global_obj, mark_func);
+ JS_MarkValue(rt, ctx->global_var_obj, mark_func);
+
+ JS_MarkValue(rt, ctx->throw_type_error, mark_func);
+ JS_MarkValue(rt, ctx->eval_obj, mark_func);
+
+ JS_MarkValue(rt, ctx->array_proto_values, mark_func);
+ for(i = 0; i < JS_NATIVE_ERROR_COUNT; i++) {
+ JS_MarkValue(rt, ctx->native_error_proto[i], mark_func);
+ }
+ for(i = 0; i < rt->class_count; i++) {
+ JS_MarkValue(rt, ctx->class_proto[i], mark_func);
+ }
+ JS_MarkValue(rt, ctx->iterator_proto, mark_func);
+ JS_MarkValue(rt, ctx->async_iterator_proto, mark_func);
+ JS_MarkValue(rt, ctx->promise_ctor, mark_func);
+ JS_MarkValue(rt, ctx->array_ctor, mark_func);
+ JS_MarkValue(rt, ctx->regexp_ctor, mark_func);
+ JS_MarkValue(rt, ctx->function_ctor, mark_func);
+ JS_MarkValue(rt, ctx->function_proto, mark_func);
+
+ if (ctx->array_shape)
+ mark_func(rt, &ctx->array_shape->header);
+}
+
+void JS_FreeContext(JSContext *ctx)
+{
+ JSRuntime *rt = ctx->rt;
+ int i;
+
+ if (--ctx->header.ref_count > 0)
+ return;
+ assert(ctx->header.ref_count == 0);
+
+#ifdef DUMP_ATOMS
+ JS_DumpAtoms(ctx->rt);
+#endif
+#ifdef DUMP_SHAPES
+ JS_DumpShapes(ctx->rt);
+#endif
+#ifdef DUMP_OBJECTS
+ {
+ struct list_head *el;
+ JSGCObjectHeader *p;
+ printf("JSObjects: {\n");
+ JS_DumpObjectHeader(ctx->rt);
+ list_for_each(el, &rt->gc_obj_list) {
+ p = list_entry(el, JSGCObjectHeader, link);
+ JS_DumpGCObject(rt, p);
+ }
+ printf("}\n");
+ }
+#endif
+#ifdef DUMP_MEM
+ {
+ JSMemoryUsage stats;
+ JS_ComputeMemoryUsage(rt, &stats);
+ JS_DumpMemoryUsage(stdout, &stats, rt);
+ }
+#endif
+
+ js_free_modules(ctx, JS_FREE_MODULE_ALL);
+
+ JS_FreeValue(ctx, ctx->global_obj);
+ JS_FreeValue(ctx, ctx->global_var_obj);
+
+ JS_FreeValue(ctx, ctx->throw_type_error);
+ JS_FreeValue(ctx, ctx->eval_obj);
+
+ JS_FreeValue(ctx, ctx->array_proto_values);
+ for(i = 0; i < JS_NATIVE_ERROR_COUNT; i++) {
+ JS_FreeValue(ctx, ctx->native_error_proto[i]);
+ }
+ for(i = 0; i < rt->class_count; i++) {
+ JS_FreeValue(ctx, ctx->class_proto[i]);
+ }
+ js_free_rt(rt, ctx->class_proto);
+ JS_FreeValue(ctx, ctx->iterator_proto);
+ JS_FreeValue(ctx, ctx->async_iterator_proto);
+ JS_FreeValue(ctx, ctx->promise_ctor);
+ JS_FreeValue(ctx, ctx->array_ctor);
+ JS_FreeValue(ctx, ctx->regexp_ctor);
+ JS_FreeValue(ctx, ctx->function_ctor);
+ JS_FreeValue(ctx, ctx->function_proto);
+
+ js_free_shape_null(ctx->rt, ctx->array_shape);
+
+ list_del(&ctx->link);
+ remove_gc_object(&ctx->header);
+ js_free_rt(ctx->rt, ctx);
+}
+
+JSRuntime *JS_GetRuntime(JSContext *ctx)
+{
+ return ctx->rt;
+}
+
+static void update_stack_limit(JSRuntime *rt)
+{
+ if (rt->stack_size == 0) {
+ rt->stack_limit = 0; /* no limit */
+ } else {
+ rt->stack_limit = rt->stack_top - rt->stack_size;
+ }
+}
+
+void JS_SetMaxStackSize(JSRuntime *rt, size_t stack_size)
+{
+ rt->stack_size = stack_size;
+ update_stack_limit(rt);
+}
+
+void JS_UpdateStackTop(JSRuntime *rt)
+{
+ rt->stack_top = js_get_stack_pointer();
+ update_stack_limit(rt);
+}
+
+static inline BOOL is_strict_mode(JSContext *ctx)
+{
+ JSStackFrame *sf = ctx->rt->current_stack_frame;
+ return (sf && (sf->js_mode & JS_MODE_STRICT));
+}
+
+#ifdef CONFIG_BIGNUM
+static inline BOOL is_math_mode(JSContext *ctx)
+{
+ JSStackFrame *sf = ctx->rt->current_stack_frame;
+ return (sf && (sf->js_mode & JS_MODE_MATH));
+}
+#else
+static inline BOOL is_math_mode(JSContext *ctx)
+{
+ return FALSE;
+}
+#endif
+
+/* JSAtom support */
+
+#define JS_ATOM_TAG_INT (1U << 31)
+#define JS_ATOM_MAX_INT (JS_ATOM_TAG_INT - 1)
+#define JS_ATOM_MAX ((1U << 30) - 1)
+
+/* return the max count from the hash size */
+#define JS_ATOM_COUNT_RESIZE(n) ((n) * 2)
+
+static inline BOOL __JS_AtomIsConst(JSAtom v)
+{
+#if defined(DUMP_LEAKS) && DUMP_LEAKS > 1
+ return (int32_t)v <= 0;
+#else
+ return (int32_t)v < JS_ATOM_END;
+#endif
+}
+
+static inline BOOL __JS_AtomIsTaggedInt(JSAtom v)
+{
+ return (v & JS_ATOM_TAG_INT) != 0;
+}
+
+static inline JSAtom __JS_AtomFromUInt32(uint32_t v)
+{
+ return v | JS_ATOM_TAG_INT;
+}
+
+static inline uint32_t __JS_AtomToUInt32(JSAtom atom)
+{
+ return atom & ~JS_ATOM_TAG_INT;
+}
+
+static inline int is_num(int c)
+{
+ return c >= '0' && c <= '9';
+}
+
+/* return TRUE if the string is a number n with 0 <= n <= 2^32-1 */
+static inline BOOL is_num_string(uint32_t *pval, const JSString *p)
+{
+ uint32_t n;
+ uint64_t n64;
+ int c, i, len;
+
+ len = p->len;
+ if (len == 0 || len > 10)
+ return FALSE;
+ c = string_get(p, 0);
+ if (is_num(c)) {
+ if (c == '0') {
+ if (len != 1)
+ return FALSE;
+ n = 0;
+ } else {
+ n = c - '0';
+ for(i = 1; i < len; i++) {
+ c = string_get(p, i);
+ if (!is_num(c))
+ return FALSE;
+ n64 = (uint64_t)n * 10 + (c - '0');
+ if ((n64 >> 32) != 0)
+ return FALSE;
+ n = n64;
+ }
+ }
+ *pval = n;
+ return TRUE;
+ } else {
+ return FALSE;
+ }
+}
+
+/* XXX: could use faster version ? */
+static inline uint32_t hash_string8(const uint8_t *str, size_t len, uint32_t h)
+{
+ size_t i;
+
+ for(i = 0; i < len; i++)
+ h = h * 263 + str[i];
+ return h;
+}
+
+static inline uint32_t hash_string16(const uint16_t *str,
+ size_t len, uint32_t h)
+{
+ size_t i;
+
+ for(i = 0; i < len; i++)
+ h = h * 263 + str[i];
+ return h;
+}
+
+static uint32_t hash_string(const JSString *str, uint32_t h)
+{
+ if (str->is_wide_char)
+ h = hash_string16(str->u.str16, str->len, h);
+ else
+ h = hash_string8(str->u.str8, str->len, h);
+ return h;
+}
+
+static __maybe_unused void JS_DumpChar(JSRuntime *rt, int c, int sep)
+{
+ if (c == sep || c == '\\') {
+ putchar('\\');
+ putchar(c);
+ } else if (c >= ' ' && c <= 126) {
+ putchar(c);
+ } else if (c == '\n') {
+ putchar('\\');
+ putchar('n');
+ } else {
+ printf("\\u%04x", c);
+ }
+}
+
+static __maybe_unused void JS_DumpString(JSRuntime *rt, const JSString *p)
+{
+ int i, sep;
+
+ if (p == NULL) {
+ printf("<null>");
+ return;
+ }
+ printf("%d", p->header.ref_count);
+ sep = (p->header.ref_count == 1) ? '\"' : '\'';
+ putchar(sep);
+ for(i = 0; i < p->len; i++) {
+ JS_DumpChar(rt, string_get(p, i), sep);
+ }
+ putchar(sep);
+}
+
+static __maybe_unused void JS_DumpAtoms(JSRuntime *rt)
+{
+ JSAtomStruct *p;
+ int h, i;
+ /* This only dumps hashed atoms, not JS_ATOM_TYPE_SYMBOL atoms */
+ printf("JSAtom count=%d size=%d hash_size=%d:\n",
+ rt->atom_count, rt->atom_size, rt->atom_hash_size);
+ printf("JSAtom hash table: {\n");
+ for(i = 0; i < rt->atom_hash_size; i++) {
+ h = rt->atom_hash[i];
+ if (h) {
+ printf(" %d:", i);
+ while (h) {
+ p = rt->atom_array[h];
+ printf(" ");
+ JS_DumpString(rt, p);
+ h = p->hash_next;
+ }
+ printf("\n");
+ }
+ }
+ printf("}\n");
+ printf("JSAtom table: {\n");
+ for(i = 0; i < rt->atom_size; i++) {
+ p = rt->atom_array[i];
+ if (!atom_is_free(p)) {
+ printf(" %d: { %d %08x ", i, p->atom_type, p->hash);
+ if (!(p->len == 0 && p->is_wide_char != 0))
+ JS_DumpString(rt, p);
+ printf(" %d }\n", p->hash_next);
+ }
+ }
+ printf("}\n");
+}
+
+static int JS_ResizeAtomHash(JSRuntime *rt, int new_hash_size)
+{
+ JSAtomStruct *p;
+ uint32_t new_hash_mask, h, i, hash_next1, j, *new_hash;
+
+ assert((new_hash_size & (new_hash_size - 1)) == 0); /* power of two */
+ new_hash_mask = new_hash_size - 1;
+ new_hash = js_mallocz_rt(rt, sizeof(rt->atom_hash[0]) * new_hash_size);
+ if (!new_hash)
+ return -1;
+ for(i = 0; i < rt->atom_hash_size; i++) {
+ h = rt->atom_hash[i];
+ while (h != 0) {
+ p = rt->atom_array[h];
+ hash_next1 = p->hash_next;
+ /* add in new hash table */
+ j = p->hash & new_hash_mask;
+ p->hash_next = new_hash[j];
+ new_hash[j] = h;
+ h = hash_next1;
+ }
+ }
+ js_free_rt(rt, rt->atom_hash);
+ rt->atom_hash = new_hash;
+ rt->atom_hash_size = new_hash_size;
+ rt->atom_count_resize = JS_ATOM_COUNT_RESIZE(new_hash_size);
+ // JS_DumpAtoms(rt);
+ return 0;
+}
+
+static int JS_InitAtoms(JSRuntime *rt)
+{
+ int i, len, atom_type;
+ const char *p;
+
+ rt->atom_hash_size = 0;
+ rt->atom_hash = NULL;
+ rt->atom_count = 0;
+ rt->atom_size = 0;
+ rt->atom_free_index = 0;
+ if (JS_ResizeAtomHash(rt, 256)) /* there are at least 195 predefined atoms */
+ return -1;
+
+ p = js_atom_init;
+ for(i = 1; i < JS_ATOM_END; i++) {
+ if (i == JS_ATOM_Private_brand)
+ atom_type = JS_ATOM_TYPE_PRIVATE;
+ else if (i >= JS_ATOM_Symbol_toPrimitive)
+ atom_type = JS_ATOM_TYPE_SYMBOL;
+ else
+ atom_type = JS_ATOM_TYPE_STRING;
+ len = strlen(p);
+ if (__JS_NewAtomInit(rt, p, len, atom_type) == JS_ATOM_NULL)
+ return -1;
+ p = p + len + 1;
+ }
+ return 0;
+}
+
+static JSAtom JS_DupAtomRT(JSRuntime *rt, JSAtom v)
+{
+ JSAtomStruct *p;
+
+ if (!__JS_AtomIsConst(v)) {
+ p = rt->atom_array[v];
+ p->header.ref_count++;
+ }
+ return v;
+}
+
+JSAtom JS_DupAtom(JSContext *ctx, JSAtom v)
+{
+ JSRuntime *rt;
+ JSAtomStruct *p;
+
+ if (!__JS_AtomIsConst(v)) {
+ rt = ctx->rt;
+ p = rt->atom_array[v];
+ p->header.ref_count++;
+ }
+ return v;
+}
+
+static JSAtomKindEnum JS_AtomGetKind(JSContext *ctx, JSAtom v)
+{
+ JSRuntime *rt;
+ JSAtomStruct *p;
+
+ rt = ctx->rt;
+ if (__JS_AtomIsTaggedInt(v))
+ return JS_ATOM_KIND_STRING;
+ p = rt->atom_array[v];
+ switch(p->atom_type) {
+ case JS_ATOM_TYPE_STRING:
+ return JS_ATOM_KIND_STRING;
+ case JS_ATOM_TYPE_GLOBAL_SYMBOL:
+ return JS_ATOM_KIND_SYMBOL;
+ case JS_ATOM_TYPE_SYMBOL:
+ switch(p->hash) {
+ case JS_ATOM_HASH_SYMBOL:
+ return JS_ATOM_KIND_SYMBOL;
+ case JS_ATOM_HASH_PRIVATE:
+ return JS_ATOM_KIND_PRIVATE;
+ default:
+ abort();
+ }
+ default:
+ abort();
+ }
+}
+
+static BOOL JS_AtomIsString(JSContext *ctx, JSAtom v)
+{
+ return JS_AtomGetKind(ctx, v) == JS_ATOM_KIND_STRING;
+}
+
+static JSAtom js_get_atom_index(JSRuntime *rt, JSAtomStruct *p)
+{
+ uint32_t i = p->hash_next; /* atom_index */
+ if (p->atom_type != JS_ATOM_TYPE_SYMBOL) {
+ JSAtomStruct *p1;
+
+ i = rt->atom_hash[p->hash & (rt->atom_hash_size - 1)];
+ p1 = rt->atom_array[i];
+ while (p1 != p) {
+ assert(i != 0);
+ i = p1->hash_next;
+ p1 = rt->atom_array[i];
+ }
+ }
+ return i;
+}
+
+/* string case (internal). Return JS_ATOM_NULL if error. 'str' is
+ freed. */
+static JSAtom __JS_NewAtom(JSRuntime *rt, JSString *str, int atom_type)
+{
+ uint32_t h, h1, i;
+ JSAtomStruct *p;
+ int len;
+
+#if 0
+ printf("__JS_NewAtom: "); JS_DumpString(rt, str); printf("\n");
+#endif
+ if (atom_type < JS_ATOM_TYPE_SYMBOL) {
+ /* str is not NULL */
+ if (str->atom_type == atom_type) {
+ /* str is the atom, return its index */
+ i = js_get_atom_index(rt, str);
+ /* reduce string refcount and increase atom's unless constant */
+ if (__JS_AtomIsConst(i))
+ str->header.ref_count--;
+ return i;
+ }
+ /* try and locate an already registered atom */
+ len = str->len;
+ h = hash_string(str, atom_type);
+ h &= JS_ATOM_HASH_MASK;
+ h1 = h & (rt->atom_hash_size - 1);
+ i = rt->atom_hash[h1];
+ while (i != 0) {
+ p = rt->atom_array[i];
+ if (p->hash == h &&
+ p->atom_type == atom_type &&
+ p->len == len &&
+ js_string_memcmp(p, str, len) == 0) {
+ if (!__JS_AtomIsConst(i))
+ p->header.ref_count++;
+ goto done;
+ }
+ i = p->hash_next;
+ }
+ } else {
+ h1 = 0; /* avoid warning */
+ if (atom_type == JS_ATOM_TYPE_SYMBOL) {
+ h = JS_ATOM_HASH_SYMBOL;
+ } else {
+ h = JS_ATOM_HASH_PRIVATE;
+ atom_type = JS_ATOM_TYPE_SYMBOL;
+ }
+ }
+
+ if (rt->atom_free_index == 0) {
+ /* allow new atom entries */
+ uint32_t new_size, start;
+ JSAtomStruct **new_array;
+
+ /* alloc new with size progression 3/2:
+ 4 6 9 13 19 28 42 63 94 141 211 316 474 711 1066 1599 2398 3597 5395 8092
+ preallocating space for predefined atoms (at least 195).
+ */
+ new_size = max_int(211, rt->atom_size * 3 / 2);
+ if (new_size > JS_ATOM_MAX)
+ goto fail;
+ /* XXX: should use realloc2 to use slack space */
+ new_array = js_realloc_rt(rt, rt->atom_array, sizeof(*new_array) * new_size);
+ if (!new_array)
+ goto fail;
+ /* Note: the atom 0 is not used */
+ start = rt->atom_size;
+ if (start == 0) {
+ /* JS_ATOM_NULL entry */
+ p = js_mallocz_rt(rt, sizeof(JSAtomStruct));
+ if (!p) {
+ js_free_rt(rt, new_array);
+ goto fail;
+ }
+ p->header.ref_count = 1; /* not refcounted */
+ p->atom_type = JS_ATOM_TYPE_SYMBOL;
+#ifdef DUMP_LEAKS
+ list_add_tail(&p->link, &rt->string_list);
+#endif
+ new_array[0] = p;
+ rt->atom_count++;
+ start = 1;
+ }
+ rt->atom_size = new_size;
+ rt->atom_array = new_array;
+ rt->atom_free_index = start;
+ for(i = start; i < new_size; i++) {
+ uint32_t next;
+ if (i == (new_size - 1))
+ next = 0;
+ else
+ next = i + 1;
+ rt->atom_array[i] = atom_set_free(next);
+ }
+ }
+
+ if (str) {
+ if (str->atom_type == 0) {
+ p = str;
+ p->atom_type = atom_type;
+ } else {
+ p = js_malloc_rt(rt, sizeof(JSString) +
+ (str->len << str->is_wide_char) +
+ 1 - str->is_wide_char);
+ if (unlikely(!p))
+ goto fail;
+ p->header.ref_count = 1;
+ p->is_wide_char = str->is_wide_char;
+ p->len = str->len;
+#ifdef DUMP_LEAKS
+ list_add_tail(&p->link, &rt->string_list);
+#endif
+ memcpy(p->u.str8, str->u.str8, (str->len << str->is_wide_char) +
+ 1 - str->is_wide_char);
+ js_free_string(rt, str);
+ }
+ } else {
+ p = js_malloc_rt(rt, sizeof(JSAtomStruct)); /* empty wide string */
+ if (!p)
+ return JS_ATOM_NULL;
+ p->header.ref_count = 1;
+ p->is_wide_char = 1; /* Hack to represent NULL as a JSString */
+ p->len = 0;
+#ifdef DUMP_LEAKS
+ list_add_tail(&p->link, &rt->string_list);
+#endif
+ }
+
+ /* use an already free entry */
+ i = rt->atom_free_index;
+ rt->atom_free_index = atom_get_free(rt->atom_array[i]);
+ rt->atom_array[i] = p;
+
+ p->hash = h;
+ p->hash_next = i; /* atom_index */
+ p->atom_type = atom_type;
+
+ rt->atom_count++;
+
+ if (atom_type != JS_ATOM_TYPE_SYMBOL) {
+ p->hash_next = rt->atom_hash[h1];
+ rt->atom_hash[h1] = i;
+ if (unlikely(rt->atom_count >= rt->atom_count_resize))
+ JS_ResizeAtomHash(rt, rt->atom_hash_size * 2);
+ }
+
+ // JS_DumpAtoms(rt);
+ return i;
+
+ fail:
+ i = JS_ATOM_NULL;
+ done:
+ if (str)
+ js_free_string(rt, str);
+ return i;
+}
+
+/* only works with zero terminated 8 bit strings */
+static JSAtom __JS_NewAtomInit(JSRuntime *rt, const char *str, int len,
+ int atom_type)
+{
+ JSString *p;
+ p = js_alloc_string_rt(rt, len, 0);
+ if (!p)
+ return JS_ATOM_NULL;
+ memcpy(p->u.str8, str, len);
+ p->u.str8[len] = '\0';
+ return __JS_NewAtom(rt, p, atom_type);
+}
+
+/* Warning: str must be ASCII only */
+static JSAtom __JS_FindAtom(JSRuntime *rt, const char *str, size_t len,
+ int atom_type)
+{
+ uint32_t h, h1, i;
+ JSAtomStruct *p;
+
+ h = hash_string8((const uint8_t *)str, len, JS_ATOM_TYPE_STRING);
+ h &= JS_ATOM_HASH_MASK;
+ h1 = h & (rt->atom_hash_size - 1);
+ i = rt->atom_hash[h1];
+ while (i != 0) {
+ p = rt->atom_array[i];
+ if (p->hash == h &&
+ p->atom_type == JS_ATOM_TYPE_STRING &&
+ p->len == len &&
+ p->is_wide_char == 0 &&
+ memcmp(p->u.str8, str, len) == 0) {
+ if (!__JS_AtomIsConst(i))
+ p->header.ref_count++;
+ return i;
+ }
+ i = p->hash_next;
+ }
+ return JS_ATOM_NULL;
+}
+
+static void JS_FreeAtomStruct(JSRuntime *rt, JSAtomStruct *p)
+{
+#if 0 /* JS_ATOM_NULL is not refcounted: __JS_AtomIsConst() includes 0 */
+ if (unlikely(i == JS_ATOM_NULL)) {
+ p->header.ref_count = INT32_MAX / 2;
+ return;
+ }
+#endif
+ uint32_t i = p->hash_next; /* atom_index */
+ if (p->atom_type != JS_ATOM_TYPE_SYMBOL) {
+ JSAtomStruct *p0, *p1;
+ uint32_t h0;
+
+ h0 = p->hash & (rt->atom_hash_size - 1);
+ i = rt->atom_hash[h0];
+ p1 = rt->atom_array[i];
+ if (p1 == p) {
+ rt->atom_hash[h0] = p1->hash_next;
+ } else {
+ for(;;) {
+ assert(i != 0);
+ p0 = p1;
+ i = p1->hash_next;
+ p1 = rt->atom_array[i];
+ if (p1 == p) {
+ p0->hash_next = p1->hash_next;
+ break;
+ }
+ }
+ }
+ }
+ /* insert in free atom list */
+ rt->atom_array[i] = atom_set_free(rt->atom_free_index);
+ rt->atom_free_index = i;
+ /* free the string structure */
+#ifdef DUMP_LEAKS
+ list_del(&p->link);
+#endif
+ js_free_rt(rt, p);
+ rt->atom_count--;
+ assert(rt->atom_count >= 0);
+}
+
+static void __JS_FreeAtom(JSRuntime *rt, uint32_t i)
+{
+ JSAtomStruct *p;
+
+ p = rt->atom_array[i];
+ if (--p->header.ref_count > 0)
+ return;
+ JS_FreeAtomStruct(rt, p);
+}
+
+/* Warning: 'p' is freed */
+static JSAtom JS_NewAtomStr(JSContext *ctx, JSString *p)
+{
+ JSRuntime *rt = ctx->rt;
+ uint32_t n;
+ if (is_num_string(&n, p)) {
+ if (n <= JS_ATOM_MAX_INT) {
+ js_free_string(rt, p);
+ return __JS_AtomFromUInt32(n);
+ }
+ }
+ /* XXX: should generate an exception */
+ return __JS_NewAtom(rt, p, JS_ATOM_TYPE_STRING);
+}
+
+/* str is UTF-8 encoded */
+JSAtom JS_NewAtomLen(JSContext *ctx, const char *str, size_t len)
+{
+ JSValue val;
+
+ if (len == 0 || !is_digit(*str)) {
+ // XXX: this will not work if UTF-8 encoded str contains non ASCII bytes
+ JSAtom atom = __JS_FindAtom(ctx->rt, str, len, JS_ATOM_TYPE_STRING);
+ if (atom)
+ return atom;
+ }
+ val = JS_NewStringLen(ctx, str, len);
+ if (JS_IsException(val))
+ return JS_ATOM_NULL;
+ return JS_NewAtomStr(ctx, JS_VALUE_GET_STRING(val));
+}
+
+JSAtom JS_NewAtom(JSContext *ctx, const char *str)
+{
+ return JS_NewAtomLen(ctx, str, strlen(str));
+}
+
+JSAtom JS_NewAtomUInt32(JSContext *ctx, uint32_t n)
+{
+ if (n <= JS_ATOM_MAX_INT) {
+ return __JS_AtomFromUInt32(n);
+ } else {
+ char buf[11];
+ JSValue val;
+ snprintf(buf, sizeof(buf), "%u", n);
+ val = JS_NewString(ctx, buf);
+ if (JS_IsException(val))
+ return JS_ATOM_NULL;
+ return __JS_NewAtom(ctx->rt, JS_VALUE_GET_STRING(val),
+ JS_ATOM_TYPE_STRING);
+ }
+}
+
+static JSAtom JS_NewAtomInt64(JSContext *ctx, int64_t n)
+{
+ if ((uint64_t)n <= JS_ATOM_MAX_INT) {
+ return __JS_AtomFromUInt32((uint32_t)n);
+ } else {
+ char buf[24];
+ JSValue val;
+ snprintf(buf, sizeof(buf), "%" PRId64 , n);
+ val = JS_NewString(ctx, buf);
+ if (JS_IsException(val))
+ return JS_ATOM_NULL;
+ return __JS_NewAtom(ctx->rt, JS_VALUE_GET_STRING(val),
+ JS_ATOM_TYPE_STRING);
+ }
+}
+
+/* 'p' is freed */
+static JSValue JS_NewSymbol(JSContext *ctx, JSString *p, int atom_type)
+{
+ JSRuntime *rt = ctx->rt;
+ JSAtom atom;
+ atom = __JS_NewAtom(rt, p, atom_type);
+ if (atom == JS_ATOM_NULL)
+ return JS_ThrowOutOfMemory(ctx);
+ return JS_MKPTR(JS_TAG_SYMBOL, rt->atom_array[atom]);
+}
+
+/* descr must be a non-numeric string atom */
+static JSValue JS_NewSymbolFromAtom(JSContext *ctx, JSAtom descr,
+ int atom_type)
+{
+ JSRuntime *rt = ctx->rt;
+ JSString *p;
+
+ assert(!__JS_AtomIsTaggedInt(descr));
+ assert(descr < rt->atom_size);
+ p = rt->atom_array[descr];
+ JS_DupValue(ctx, JS_MKPTR(JS_TAG_STRING, p));
+ return JS_NewSymbol(ctx, p, atom_type);
+}
+
+#define ATOM_GET_STR_BUF_SIZE 64
+
+/* Should only be used for debug. */
+static const char *JS_AtomGetStrRT(JSRuntime *rt, char *buf, int buf_size,
+ JSAtom atom)
+{
+ if (__JS_AtomIsTaggedInt(atom)) {
+ snprintf(buf, buf_size, "%u", __JS_AtomToUInt32(atom));
+ } else {
+ JSAtomStruct *p;
+ assert(atom < rt->atom_size);
+ if (atom == JS_ATOM_NULL) {
+ snprintf(buf, buf_size, "<null>");
+ } else {
+ int i, c;
+ char *q;
+ JSString *str;
+
+ q = buf;
+ p = rt->atom_array[atom];
+ assert(!atom_is_free(p));
+ str = p;
+ if (str) {
+ if (!str->is_wide_char) {
+ /* special case ASCII strings */
+ c = 0;
+ for(i = 0; i < str->len; i++) {
+ c |= str->u.str8[i];
+ }
+ if (c < 0x80)
+ return (const char *)str->u.str8;
+ }
+ for(i = 0; i < str->len; i++) {
+ c = string_get(str, i);
+ if ((q - buf) >= buf_size - UTF8_CHAR_LEN_MAX)
+ break;
+ if (c < 128) {
+ *q++ = c;
+ } else {
+ q += unicode_to_utf8((uint8_t *)q, c);
+ }
+ }
+ }
+ *q = '\0';
+ }
+ }
+ return buf;
+}
+
+static const char *JS_AtomGetStr(JSContext *ctx, char *buf, int buf_size, JSAtom atom)
+{
+ return JS_AtomGetStrRT(ctx->rt, buf, buf_size, atom);
+}
+
+static JSValue __JS_AtomToValue(JSContext *ctx, JSAtom atom, BOOL force_string)
+{
+ char buf[ATOM_GET_STR_BUF_SIZE];
+
+ if (__JS_AtomIsTaggedInt(atom)) {
+ snprintf(buf, sizeof(buf), "%u", __JS_AtomToUInt32(atom));
+ return JS_NewString(ctx, buf);
+ } else {
+ JSRuntime *rt = ctx->rt;
+ JSAtomStruct *p;
+ assert(atom < rt->atom_size);
+ p = rt->atom_array[atom];
+ if (p->atom_type == JS_ATOM_TYPE_STRING) {
+ goto ret_string;
+ } else if (force_string) {
+ if (p->len == 0 && p->is_wide_char != 0) {
+ /* no description string */
+ p = rt->atom_array[JS_ATOM_empty_string];
+ }
+ ret_string:
+ return JS_DupValue(ctx, JS_MKPTR(JS_TAG_STRING, p));
+ } else {
+ return JS_DupValue(ctx, JS_MKPTR(JS_TAG_SYMBOL, p));
+ }
+ }
+}
+
+JSValue JS_AtomToValue(JSContext *ctx, JSAtom atom)
+{
+ return __JS_AtomToValue(ctx, atom, FALSE);
+}
+
+JSValue JS_AtomToString(JSContext *ctx, JSAtom atom)
+{
+ return __JS_AtomToValue(ctx, atom, TRUE);
+}
+
+/* return TRUE if the atom is an array index (i.e. 0 <= index <=
+ 2^32-2 and return its value */
+static BOOL JS_AtomIsArrayIndex(JSContext *ctx, uint32_t *pval, JSAtom atom)
+{
+ if (__JS_AtomIsTaggedInt(atom)) {
+ *pval = __JS_AtomToUInt32(atom);
+ return TRUE;
+ } else {
+ JSRuntime *rt = ctx->rt;
+ JSAtomStruct *p;
+ uint32_t val;
+
+ assert(atom < rt->atom_size);
+ p = rt->atom_array[atom];
+ if (p->atom_type == JS_ATOM_TYPE_STRING &&
+ is_num_string(&val, p) && val != -1) {
+ *pval = val;
+ return TRUE;
+ } else {
+ *pval = 0;
+ return FALSE;
+ }
+ }
+}
+
+/* This test must be fast if atom is not a numeric index (e.g. a
+ method name). Return JS_UNDEFINED if not a numeric
+ index. JS_EXCEPTION can also be returned. */
+static JSValue JS_AtomIsNumericIndex1(JSContext *ctx, JSAtom atom)
+{
+ JSRuntime *rt = ctx->rt;
+ JSAtomStruct *p1;
+ JSString *p;
+ int c, len, ret;
+ JSValue num, str;
+
+ if (__JS_AtomIsTaggedInt(atom))
+ return JS_NewInt32(ctx, __JS_AtomToUInt32(atom));
+ assert(atom < rt->atom_size);
+ p1 = rt->atom_array[atom];
+ if (p1->atom_type != JS_ATOM_TYPE_STRING)
+ return JS_UNDEFINED;
+ p = p1;
+ len = p->len;
+ if (p->is_wide_char) {
+ const uint16_t *r = p->u.str16, *r_end = p->u.str16 + len;
+ if (r >= r_end)
+ return JS_UNDEFINED;
+ c = *r;
+ if (c == '-') {
+ if (r >= r_end)
+ return JS_UNDEFINED;
+ r++;
+ c = *r;
+ /* -0 case is specific */
+ if (c == '0' && len == 2)
+ goto minus_zero;
+ }
+ /* XXX: should test NaN, but the tests do not check it */
+ if (!is_num(c)) {
+ /* XXX: String should be normalized, therefore 8-bit only */
+ const uint16_t nfinity16[7] = { 'n', 'f', 'i', 'n', 'i', 't', 'y' };
+ if (!(c =='I' && (r_end - r) == 8 &&
+ !memcmp(r + 1, nfinity16, sizeof(nfinity16))))
+ return JS_UNDEFINED;
+ }
+ } else {
+ const uint8_t *r = p->u.str8, *r_end = p->u.str8 + len;
+ if (r >= r_end)
+ return JS_UNDEFINED;
+ c = *r;
+ if (c == '-') {
+ if (r >= r_end)
+ return JS_UNDEFINED;
+ r++;
+ c = *r;
+ /* -0 case is specific */
+ if (c == '0' && len == 2) {
+ minus_zero:
+ return __JS_NewFloat64(ctx, -0.0);
+ }
+ }
+ if (!is_num(c)) {
+ if (!(c =='I' && (r_end - r) == 8 &&
+ !memcmp(r + 1, "nfinity", 7)))
+ return JS_UNDEFINED;
+ }
+ }
+ /* XXX: bignum: would be better to only accept integer to avoid
+ relying on current floating point precision */
+ /* this is ECMA CanonicalNumericIndexString primitive */
+ num = JS_ToNumber(ctx, JS_MKPTR(JS_TAG_STRING, p));
+ if (JS_IsException(num))
+ return num;
+ str = JS_ToString(ctx, num);
+ if (JS_IsException(str)) {
+ JS_FreeValue(ctx, num);
+ return str;
+ }
+ ret = js_string_compare(ctx, p, JS_VALUE_GET_STRING(str));
+ JS_FreeValue(ctx, str);
+ if (ret == 0) {
+ return num;
+ } else {
+ JS_FreeValue(ctx, num);
+ return JS_UNDEFINED;
+ }
+}
+
+/* return -1 if exception or TRUE/FALSE */
+static int JS_AtomIsNumericIndex(JSContext *ctx, JSAtom atom)
+{
+ JSValue num;
+ num = JS_AtomIsNumericIndex1(ctx, atom);
+ if (likely(JS_IsUndefined(num)))
+ return FALSE;
+ if (JS_IsException(num))
+ return -1;
+ JS_FreeValue(ctx, num);
+ return TRUE;
+}
+
+void JS_FreeAtom(JSContext *ctx, JSAtom v)
+{
+ if (!__JS_AtomIsConst(v))
+ __JS_FreeAtom(ctx->rt, v);
+}
+
+void JS_FreeAtomRT(JSRuntime *rt, JSAtom v)
+{
+ if (!__JS_AtomIsConst(v))
+ __JS_FreeAtom(rt, v);
+}
+
+/* return TRUE if 'v' is a symbol with a string description */
+static BOOL JS_AtomSymbolHasDescription(JSContext *ctx, JSAtom v)
+{
+ JSRuntime *rt;
+ JSAtomStruct *p;
+
+ rt = ctx->rt;
+ if (__JS_AtomIsTaggedInt(v))
+ return FALSE;
+ p = rt->atom_array[v];
+ return (((p->atom_type == JS_ATOM_TYPE_SYMBOL &&
+ p->hash == JS_ATOM_HASH_SYMBOL) ||
+ p->atom_type == JS_ATOM_TYPE_GLOBAL_SYMBOL) &&
+ !(p->len == 0 && p->is_wide_char != 0));
+}
+
+static __maybe_unused void print_atom(JSContext *ctx, JSAtom atom)
+{
+ char buf[ATOM_GET_STR_BUF_SIZE];
+ const char *p;
+ int i;
+
+ /* XXX: should handle embedded null characters */
+ /* XXX: should move encoding code to JS_AtomGetStr */
+ p = JS_AtomGetStr(ctx, buf, sizeof(buf), atom);
+ for (i = 0; p[i]; i++) {
+ int c = (unsigned char)p[i];
+ if (!((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') ||
+ (c == '_' || c == '$') || (c >= '0' && c <= '9' && i > 0)))
+ break;
+ }
+ if (i > 0 && p[i] == '\0') {
+ printf("%s", p);
+ } else {
+ putchar('"');
+ printf("%.*s", i, p);
+ for (; p[i]; i++) {
+ int c = (unsigned char)p[i];
+ if (c == '\"' || c == '\\') {
+ putchar('\\');
+ putchar(c);
+ } else if (c >= ' ' && c <= 126) {
+ putchar(c);
+ } else if (c == '\n') {
+ putchar('\\');
+ putchar('n');
+ } else {
+ printf("\\u%04x", c);
+ }
+ }
+ putchar('\"');
+ }
+}
+
+/* free with JS_FreeCString() */
+const char *JS_AtomToCString(JSContext *ctx, JSAtom atom)
+{
+ JSValue str;
+ const char *cstr;
+
+ str = JS_AtomToString(ctx, atom);
+ if (JS_IsException(str))
+ return NULL;
+ cstr = JS_ToCString(ctx, str);
+ JS_FreeValue(ctx, str);
+ return cstr;
+}
+
+/* return a string atom containing name concatenated with str1 */
+static JSAtom js_atom_concat_str(JSContext *ctx, JSAtom name, const char *str1)
+{
+ JSValue str;
+ JSAtom atom;
+ const char *cstr;
+ char *cstr2;
+ size_t len, len1;
+
+ str = JS_AtomToString(ctx, name);
+ if (JS_IsException(str))
+ return JS_ATOM_NULL;
+ cstr = JS_ToCStringLen(ctx, &len, str);
+ if (!cstr)
+ goto fail;
+ len1 = strlen(str1);
+ cstr2 = js_malloc(ctx, len + len1 + 1);
+ if (!cstr2)
+ goto fail;
+ memcpy(cstr2, cstr, len);
+ memcpy(cstr2 + len, str1, len1);
+ cstr2[len + len1] = '\0';
+ atom = JS_NewAtomLen(ctx, cstr2, len + len1);
+ js_free(ctx, cstr2);
+ JS_FreeCString(ctx, cstr);
+ JS_FreeValue(ctx, str);
+ return atom;
+ fail:
+ JS_FreeCString(ctx, cstr);
+ JS_FreeValue(ctx, str);
+ return JS_ATOM_NULL;
+}
+
+static JSAtom js_atom_concat_num(JSContext *ctx, JSAtom name, uint32_t n)
+{
+ char buf[16];
+ snprintf(buf, sizeof(buf), "%u", n);
+ return js_atom_concat_str(ctx, name, buf);
+}
+
+static inline BOOL JS_IsEmptyString(JSValueConst v)
+{
+ return JS_VALUE_GET_TAG(v) == JS_TAG_STRING && JS_VALUE_GET_STRING(v)->len == 0;
+}
+
+/* JSClass support */
+
+#ifdef CONFIG_ATOMICS
+static pthread_mutex_t js_class_id_mutex = PTHREAD_MUTEX_INITIALIZER;
+#endif
+
+/* a new class ID is allocated if *pclass_id != 0 */
+JSClassID JS_NewClassID(JSClassID *pclass_id)
+{
+ JSClassID class_id;
+#ifdef CONFIG_ATOMICS
+ pthread_mutex_lock(&js_class_id_mutex);
+#endif
+ class_id = *pclass_id;
+ if (class_id == 0) {
+ class_id = js_class_id_alloc++;
+ *pclass_id = class_id;
+ }
+#ifdef CONFIG_ATOMICS
+ pthread_mutex_unlock(&js_class_id_mutex);
+#endif
+ return class_id;
+}
+
+JSClassID JS_GetClassID(JSValue v)
+{
+ JSObject *p;
+ if (JS_VALUE_GET_TAG(v) != JS_TAG_OBJECT)
+ return JS_INVALID_CLASS_ID;
+ p = JS_VALUE_GET_OBJ(v);
+ return p->class_id;
+}
+
+BOOL JS_IsRegisteredClass(JSRuntime *rt, JSClassID class_id)
+{
+ return (class_id < rt->class_count &&
+ rt->class_array[class_id].class_id != 0);
+}
+
+/* create a new object internal class. Return -1 if error, 0 if
+ OK. The finalizer can be NULL if none is needed. */
+static int JS_NewClass1(JSRuntime *rt, JSClassID class_id,
+ const JSClassDef *class_def, JSAtom name)
+{
+ int new_size, i;
+ JSClass *cl, *new_class_array;
+ struct list_head *el;
+
+ if (class_id >= (1 << 16))
+ return -1;
+ if (class_id < rt->class_count &&
+ rt->class_array[class_id].class_id != 0)
+ return -1;
+
+ if (class_id >= rt->class_count) {
+ new_size = max_int(JS_CLASS_INIT_COUNT,
+ max_int(class_id + 1, rt->class_count * 3 / 2));
+
+ /* reallocate the context class prototype array, if any */
+ list_for_each(el, &rt->context_list) {
+ JSContext *ctx = list_entry(el, JSContext, link);
+ JSValue *new_tab;
+ new_tab = js_realloc_rt(rt, ctx->class_proto,
+ sizeof(ctx->class_proto[0]) * new_size);
+ if (!new_tab)
+ return -1;
+ for(i = rt->class_count; i < new_size; i++)
+ new_tab[i] = JS_NULL;
+ ctx->class_proto = new_tab;
+ }
+ /* reallocate the class array */
+ new_class_array = js_realloc_rt(rt, rt->class_array,
+ sizeof(JSClass) * new_size);
+ if (!new_class_array)
+ return -1;
+ memset(new_class_array + rt->class_count, 0,
+ (new_size - rt->class_count) * sizeof(JSClass));
+ rt->class_array = new_class_array;
+ rt->class_count = new_size;
+ }
+ cl = &rt->class_array[class_id];
+ cl->class_id = class_id;
+ cl->class_name = JS_DupAtomRT(rt, name);
+ cl->finalizer = class_def->finalizer;
+ cl->gc_mark = class_def->gc_mark;
+ cl->call = class_def->call;
+ cl->exotic = class_def->exotic;
+ return 0;
+}
+
+int JS_NewClass(JSRuntime *rt, JSClassID class_id, const JSClassDef *class_def)
+{
+ int ret, len;
+ JSAtom name;
+
+ len = strlen(class_def->class_name);
+ name = __JS_FindAtom(rt, class_def->class_name, len, JS_ATOM_TYPE_STRING);
+ if (name == JS_ATOM_NULL) {
+ name = __JS_NewAtomInit(rt, class_def->class_name, len, JS_ATOM_TYPE_STRING);
+ if (name == JS_ATOM_NULL)
+ return -1;
+ }
+ ret = JS_NewClass1(rt, class_id, class_def, name);
+ JS_FreeAtomRT(rt, name);
+ return ret;
+}
+
+static JSValue js_new_string8(JSContext *ctx, const uint8_t *buf, int len)
+{
+ JSString *str;
+
+ if (len <= 0) {
+ return JS_AtomToString(ctx, JS_ATOM_empty_string);
+ }
+ str = js_alloc_string(ctx, len, 0);
+ if (!str)
+ return JS_EXCEPTION;
+ memcpy(str->u.str8, buf, len);
+ str->u.str8[len] = '\0';
+ return JS_MKPTR(JS_TAG_STRING, str);
+}
+
+static JSValue js_new_string16(JSContext *ctx, const uint16_t *buf, int len)
+{
+ JSString *str;
+ str = js_alloc_string(ctx, len, 1);
+ if (!str)
+ return JS_EXCEPTION;
+ memcpy(str->u.str16, buf, len * 2);
+ return JS_MKPTR(JS_TAG_STRING, str);
+}
+
+static JSValue js_new_string_char(JSContext *ctx, uint16_t c)
+{
+ if (c < 0x100) {
+ uint8_t ch8 = c;
+ return js_new_string8(ctx, &ch8, 1);
+ } else {
+ uint16_t ch16 = c;
+ return js_new_string16(ctx, &ch16, 1);
+ }
+}
+
+static JSValue js_sub_string(JSContext *ctx, JSString *p, int start, int end)
+{
+ int len = end - start;
+ if (start == 0 && end == p->len) {
+ return JS_DupValue(ctx, JS_MKPTR(JS_TAG_STRING, p));
+ }
+ if (p->is_wide_char && len > 0) {
+ JSString *str;
+ int i;
+ uint16_t c = 0;
+ for (i = start; i < end; i++) {
+ c |= p->u.str16[i];
+ }
+ if (c > 0xFF)
+ return js_new_string16(ctx, p->u.str16 + start, len);
+
+ str = js_alloc_string(ctx, len, 0);
+ if (!str)
+ return JS_EXCEPTION;
+ for (i = 0; i < len; i++) {
+ str->u.str8[i] = p->u.str16[start + i];
+ }
+ str->u.str8[len] = '\0';
+ return JS_MKPTR(JS_TAG_STRING, str);
+ } else {
+ return js_new_string8(ctx, p->u.str8 + start, len);
+ }
+}
+
+typedef struct StringBuffer {
+ JSContext *ctx;
+ JSString *str;
+ int len;
+ int size;
+ int is_wide_char;
+ int error_status;
+} StringBuffer;
+
+/* It is valid to call string_buffer_end() and all string_buffer functions even
+ if string_buffer_init() or another string_buffer function returns an error.
+ If the error_status is set, string_buffer_end() returns JS_EXCEPTION.
+ */
+static int string_buffer_init2(JSContext *ctx, StringBuffer *s, int size,
+ int is_wide)
+{
+ s->ctx = ctx;
+ s->size = size;
+ s->len = 0;
+ s->is_wide_char = is_wide;
+ s->error_status = 0;
+ s->str = js_alloc_string(ctx, size, is_wide);
+ if (unlikely(!s->str)) {
+ s->size = 0;
+ return s->error_status = -1;
+ }
+#ifdef DUMP_LEAKS
+ /* the StringBuffer may reallocate the JSString, only link it at the end */
+ list_del(&s->str->link);
+#endif
+ return 0;
+}
+
+static inline int string_buffer_init(JSContext *ctx, StringBuffer *s, int size)
+{
+ return string_buffer_init2(ctx, s, size, 0);
+}
+
+static void string_buffer_free(StringBuffer *s)
+{
+ js_free(s->ctx, s->str);
+ s->str = NULL;
+}
+
+static int string_buffer_set_error(StringBuffer *s)
+{
+ js_free(s->ctx, s->str);
+ s->str = NULL;
+ s->size = 0;
+ s->len = 0;
+ return s->error_status = -1;
+}
+
+static no_inline int string_buffer_widen(StringBuffer *s, int size)
+{
+ JSString *str;
+ size_t slack;
+ int i;
+
+ if (s->error_status)
+ return -1;
+
+ str = js_realloc2(s->ctx, s->str, sizeof(JSString) + (size << 1), &slack);
+ if (!str)
+ return string_buffer_set_error(s);
+ size += slack >> 1;
+ for(i = s->len; i-- > 0;) {
+ str->u.str16[i] = str->u.str8[i];
+ }
+ s->is_wide_char = 1;
+ s->size = size;
+ s->str = str;
+ return 0;
+}
+
+static no_inline int string_buffer_realloc(StringBuffer *s, int new_len, int c)
+{
+ JSString *new_str;
+ int new_size;
+ size_t new_size_bytes, slack;
+
+ if (s->error_status)
+ return -1;
+
+ if (new_len > JS_STRING_LEN_MAX) {
+ JS_ThrowInternalError(s->ctx, "string too long");
+ return string_buffer_set_error(s);
+ }
+ new_size = min_int(max_int(new_len, s->size * 3 / 2), JS_STRING_LEN_MAX);
+ if (!s->is_wide_char && c >= 0x100) {
+ return string_buffer_widen(s, new_size);
+ }
+ new_size_bytes = sizeof(JSString) + (new_size << s->is_wide_char) + 1 - s->is_wide_char;
+ new_str = js_realloc2(s->ctx, s->str, new_size_bytes, &slack);
+ if (!new_str)
+ return string_buffer_set_error(s);
+ new_size = min_int(new_size + (slack >> s->is_wide_char), JS_STRING_LEN_MAX);
+ s->size = new_size;
+ s->str = new_str;
+ return 0;
+}
+
+static no_inline int string_buffer_putc_slow(StringBuffer *s, uint32_t c)
+{
+ if (unlikely(s->len >= s->size)) {
+ if (string_buffer_realloc(s, s->len + 1, c))
+ return -1;
+ }
+ if (s->is_wide_char) {
+ s->str->u.str16[s->len++] = c;
+ } else if (c < 0x100) {
+ s->str->u.str8[s->len++] = c;
+ } else {
+ if (string_buffer_widen(s, s->size))
+ return -1;
+ s->str->u.str16[s->len++] = c;
+ }
+ return 0;
+}
+
+/* 0 <= c <= 0xff */
+static int string_buffer_putc8(StringBuffer *s, uint32_t c)
+{
+ if (unlikely(s->len >= s->size)) {
+ if (string_buffer_realloc(s, s->len + 1, c))
+ return -1;
+ }
+ if (s->is_wide_char) {
+ s->str->u.str16[s->len++] = c;
+ } else {
+ s->str->u.str8[s->len++] = c;
+ }
+ return 0;
+}
+
+/* 0 <= c <= 0xffff */
+static int string_buffer_putc16(StringBuffer *s, uint32_t c)
+{
+ if (likely(s->len < s->size)) {
+ if (s->is_wide_char) {
+ s->str->u.str16[s->len++] = c;
+ return 0;
+ } else if (c < 0x100) {
+ s->str->u.str8[s->len++] = c;
+ return 0;
+ }
+ }
+ return string_buffer_putc_slow(s, c);
+}
+
+/* 0 <= c <= 0x10ffff */
+static int string_buffer_putc(StringBuffer *s, uint32_t c)
+{
+ if (unlikely(c >= 0x10000)) {
+ /* surrogate pair */
+ if (string_buffer_putc16(s, get_hi_surrogate(c)))
+ return -1;
+ c = get_lo_surrogate(c);
+ }
+ return string_buffer_putc16(s, c);
+}
+
+static int string_getc(const JSString *p, int *pidx)
+{
+ int idx, c, c1;
+ idx = *pidx;
+ if (p->is_wide_char) {
+ c = p->u.str16[idx++];
+ if (is_hi_surrogate(c) && idx < p->len) {
+ c1 = p->u.str16[idx];
+ if (is_lo_surrogate(c1)) {
+ c = from_surrogate(c, c1);
+ idx++;
+ }
+ }
+ } else {
+ c = p->u.str8[idx++];
+ }
+ *pidx = idx;
+ return c;
+}
+
+static int string_buffer_write8(StringBuffer *s, const uint8_t *p, int len)
+{
+ int i;
+
+ if (s->len + len > s->size) {
+ if (string_buffer_realloc(s, s->len + len, 0))
+ return -1;
+ }
+ if (s->is_wide_char) {
+ for (i = 0; i < len; i++) {
+ s->str->u.str16[s->len + i] = p[i];
+ }
+ s->len += len;
+ } else {
+ memcpy(&s->str->u.str8[s->len], p, len);
+ s->len += len;
+ }
+ return 0;
+}
+
+static int string_buffer_write16(StringBuffer *s, const uint16_t *p, int len)
+{
+ int c = 0, i;
+
+ for (i = 0; i < len; i++) {
+ c |= p[i];
+ }
+ if (s->len + len > s->size) {
+ if (string_buffer_realloc(s, s->len + len, c))
+ return -1;
+ } else if (!s->is_wide_char && c >= 0x100) {
+ if (string_buffer_widen(s, s->size))
+ return -1;
+ }
+ if (s->is_wide_char) {
+ memcpy(&s->str->u.str16[s->len], p, len << 1);
+ s->len += len;
+ } else {
+ for (i = 0; i < len; i++) {
+ s->str->u.str8[s->len + i] = p[i];
+ }
+ s->len += len;
+ }
+ return 0;
+}
+
+/* appending an ASCII string */
+static int string_buffer_puts8(StringBuffer *s, const char *str)
+{
+ return string_buffer_write8(s, (const uint8_t *)str, strlen(str));
+}
+
+static int string_buffer_concat(StringBuffer *s, const JSString *p,
+ uint32_t from, uint32_t to)
+{
+ if (to <= from)
+ return 0;
+ if (p->is_wide_char)
+ return string_buffer_write16(s, p->u.str16 + from, to - from);
+ else
+ return string_buffer_write8(s, p->u.str8 + from, to - from);
+}
+
+static int string_buffer_concat_value(StringBuffer *s, JSValueConst v)
+{
+ JSString *p;
+ JSValue v1;
+ int res;
+
+ if (s->error_status) {
+ /* prevent exception overload */
+ return -1;
+ }
+ if (unlikely(JS_VALUE_GET_TAG(v) != JS_TAG_STRING)) {
+ v1 = JS_ToString(s->ctx, v);
+ if (JS_IsException(v1))
+ return string_buffer_set_error(s);
+ p = JS_VALUE_GET_STRING(v1);
+ res = string_buffer_concat(s, p, 0, p->len);
+ JS_FreeValue(s->ctx, v1);
+ return res;
+ }
+ p = JS_VALUE_GET_STRING(v);
+ return string_buffer_concat(s, p, 0, p->len);
+}
+
+static int string_buffer_concat_value_free(StringBuffer *s, JSValue v)
+{
+ JSString *p;
+ int res;
+
+ if (s->error_status) {
+ /* prevent exception overload */
+ JS_FreeValue(s->ctx, v);
+ return -1;
+ }
+ if (unlikely(JS_VALUE_GET_TAG(v) != JS_TAG_STRING)) {
+ v = JS_ToStringFree(s->ctx, v);
+ if (JS_IsException(v))
+ return string_buffer_set_error(s);
+ }
+ p = JS_VALUE_GET_STRING(v);
+ res = string_buffer_concat(s, p, 0, p->len);
+ JS_FreeValue(s->ctx, v);
+ return res;
+}
+
+static int string_buffer_fill(StringBuffer *s, int c, int count)
+{
+ /* XXX: optimize */
+ if (s->len + count > s->size) {
+ if (string_buffer_realloc(s, s->len + count, c))
+ return -1;
+ }
+ while (count-- > 0) {
+ if (string_buffer_putc16(s, c))
+ return -1;
+ }
+ return 0;
+}
+
+static JSValue string_buffer_end(StringBuffer *s)
+{
+ JSString *str;
+ str = s->str;
+ if (s->error_status)
+ return JS_EXCEPTION;
+ if (s->len == 0) {
+ js_free(s->ctx, str);
+ s->str = NULL;
+ return JS_AtomToString(s->ctx, JS_ATOM_empty_string);
+ }
+ if (s->len < s->size) {
+ /* smaller size so js_realloc should not fail, but OK if it does */
+ /* XXX: should add some slack to avoid unnecessary calls */
+ /* XXX: might need to use malloc+free to ensure smaller size */
+ str = js_realloc_rt(s->ctx->rt, str, sizeof(JSString) +
+ (s->len << s->is_wide_char) + 1 - s->is_wide_char);
+ if (str == NULL)
+ str = s->str;
+ s->str = str;
+ }
+ if (!s->is_wide_char)
+ str->u.str8[s->len] = 0;
+#ifdef DUMP_LEAKS
+ list_add_tail(&str->link, &s->ctx->rt->string_list);
+#endif
+ str->is_wide_char = s->is_wide_char;
+ str->len = s->len;
+ s->str = NULL;
+ return JS_MKPTR(JS_TAG_STRING, str);
+}
+
+/* create a string from a UTF-8 buffer */
+JSValue JS_NewStringLen(JSContext *ctx, const char *buf, size_t buf_len)
+{
+ const uint8_t *p, *p_end, *p_start, *p_next;
+ uint32_t c;
+ StringBuffer b_s, *b = &b_s;
+ size_t len1;
+
+ p_start = (const uint8_t *)buf;
+ p_end = p_start + buf_len;
+ p = p_start;
+ while (p < p_end && *p < 128)
+ p++;
+ len1 = p - p_start;
+ if (len1 > JS_STRING_LEN_MAX)
+ return JS_ThrowInternalError(ctx, "string too long");
+ if (p == p_end) {
+ /* ASCII string */
+ return js_new_string8(ctx, (const uint8_t *)buf, buf_len);
+ } else {
+ if (string_buffer_init(ctx, b, buf_len))
+ goto fail;
+ string_buffer_write8(b, p_start, len1);
+ while (p < p_end) {
+ if (*p < 128) {
+ string_buffer_putc8(b, *p++);
+ } else {
+ /* parse utf-8 sequence, return 0xFFFFFFFF for error */
+ c = unicode_from_utf8(p, p_end - p, &p_next);
+ if (c < 0x10000) {
+ p = p_next;
+ } else if (c <= 0x10FFFF) {
+ p = p_next;
+ /* surrogate pair */
+ string_buffer_putc16(b, get_hi_surrogate(c));
+ c = get_lo_surrogate(c);
+ } else {
+ /* invalid char */
+ c = 0xfffd;
+ /* skip the invalid chars */
+ /* XXX: seems incorrect. Why not just use c = *p++; ? */
+ while (p < p_end && (*p >= 0x80 && *p < 0xc0))
+ p++;
+ if (p < p_end) {
+ p++;
+ while (p < p_end && (*p >= 0x80 && *p < 0xc0))
+ p++;
+ }
+ }
+ string_buffer_putc16(b, c);
+ }
+ }
+ }
+ return string_buffer_end(b);
+
+ fail:
+ string_buffer_free(b);
+ return JS_EXCEPTION;
+}
+
+static JSValue JS_ConcatString3(JSContext *ctx, const char *str1,
+ JSValue str2, const char *str3)
+{
+ StringBuffer b_s, *b = &b_s;
+ int len1, len3;
+ JSString *p;
+
+ if (unlikely(JS_VALUE_GET_TAG(str2) != JS_TAG_STRING)) {
+ str2 = JS_ToStringFree(ctx, str2);
+ if (JS_IsException(str2))
+ goto fail;
+ }
+ p = JS_VALUE_GET_STRING(str2);
+ len1 = strlen(str1);
+ len3 = strlen(str3);
+
+ if (string_buffer_init2(ctx, b, len1 + p->len + len3, p->is_wide_char))
+ goto fail;
+
+ string_buffer_write8(b, (const uint8_t *)str1, len1);
+ string_buffer_concat(b, p, 0, p->len);
+ string_buffer_write8(b, (const uint8_t *)str3, len3);
+
+ JS_FreeValue(ctx, str2);
+ return string_buffer_end(b);
+
+ fail:
+ JS_FreeValue(ctx, str2);
+ return JS_EXCEPTION;
+}
+
+JSValue JS_NewString(JSContext *ctx, const char *str)
+{
+ return JS_NewStringLen(ctx, str, strlen(str));
+}
+
+JSValue JS_NewAtomString(JSContext *ctx, const char *str)
+{
+ JSAtom atom = JS_NewAtom(ctx, str);
+ if (atom == JS_ATOM_NULL)
+ return JS_EXCEPTION;
+ JSValue val = JS_AtomToString(ctx, atom);
+ JS_FreeAtom(ctx, atom);
+ return val;
+}
+
+/* return (NULL, 0) if exception. */
+/* return pointer into a JSString with a live ref_count */
+/* cesu8 determines if non-BMP1 codepoints are encoded as 1 or 2 utf-8 sequences */
+const char *JS_ToCStringLen2(JSContext *ctx, size_t *plen, JSValueConst val1, BOOL cesu8)
+{
+ JSValue val;
+ JSString *str, *str_new;
+ int pos, len, c, c1;
+ uint8_t *q;
+
+ if (JS_VALUE_GET_TAG(val1) != JS_TAG_STRING) {
+ val = JS_ToString(ctx, val1);
+ if (JS_IsException(val))
+ goto fail;
+ } else {
+ val = JS_DupValue(ctx, val1);
+ }
+
+ str = JS_VALUE_GET_STRING(val);
+ len = str->len;
+ if (!str->is_wide_char) {
+ const uint8_t *src = str->u.str8;
+ int count;
+
+ /* count the number of non-ASCII characters */
+ /* Scanning the whole string is required for ASCII strings,
+ and computing the number of non-ASCII bytes is less expensive
+ than testing each byte, hence this method is faster for ASCII
+ strings, which is the most common case.
+ */
+ count = 0;
+ for (pos = 0; pos < len; pos++) {
+ count += src[pos] >> 7;
+ }
+ if (count == 0) {
+ if (plen)
+ *plen = len;
+ return (const char *)src;
+ }
+ str_new = js_alloc_string(ctx, len + count, 0);
+ if (!str_new)
+ goto fail;
+ q = str_new->u.str8;
+ for (pos = 0; pos < len; pos++) {
+ c = src[pos];
+ if (c < 0x80) {
+ *q++ = c;
+ } else {
+ *q++ = (c >> 6) | 0xc0;
+ *q++ = (c & 0x3f) | 0x80;
+ }
+ }
+ } else {
+ const uint16_t *src = str->u.str16;
+ /* Allocate 3 bytes per 16 bit code point. Surrogate pairs may
+ produce 4 bytes but use 2 code points.
+ */
+ str_new = js_alloc_string(ctx, len * 3, 0);
+ if (!str_new)
+ goto fail;
+ q = str_new->u.str8;
+ pos = 0;
+ while (pos < len) {
+ c = src[pos++];
+ if (c < 0x80) {
+ *q++ = c;
+ } else {
+ if (is_hi_surrogate(c)) {
+ if (pos < len && !cesu8) {
+ c1 = src[pos];
+ if (is_lo_surrogate(c1)) {
+ pos++;
+ c = from_surrogate(c, c1);
+ } else {
+ /* Keep unmatched surrogate code points */
+ /* c = 0xfffd; */ /* error */
+ }
+ } else {
+ /* Keep unmatched surrogate code points */
+ /* c = 0xfffd; */ /* error */
+ }
+ }
+ q += unicode_to_utf8(q, c);
+ }
+ }
+ }
+
+ *q = '\0';
+ str_new->len = q - str_new->u.str8;
+ JS_FreeValue(ctx, val);
+ if (plen)
+ *plen = str_new->len;
+ return (const char *)str_new->u.str8;
+ fail:
+ if (plen)
+ *plen = 0;
+ return NULL;
+}
+
+void JS_FreeCString(JSContext *ctx, const char *ptr)
+{
+ JSString *p;
+ if (!ptr)
+ return;
+ /* purposely removing constness */
+ p = container_of(ptr, JSString, u);
+ JS_FreeValue(ctx, JS_MKPTR(JS_TAG_STRING, p));
+}
+
+static int memcmp16_8(const uint16_t *src1, const uint8_t *src2, int len)
+{
+ int c, i;
+ for(i = 0; i < len; i++) {
+ c = src1[i] - src2[i];
+ if (c != 0)
+ return c;
+ }
+ return 0;
+}
+
+static int memcmp16(const uint16_t *src1, const uint16_t *src2, int len)
+{
+ int c, i;
+ for(i = 0; i < len; i++) {
+ c = src1[i] - src2[i];
+ if (c != 0)
+ return c;
+ }
+ return 0;
+}
+
+static int js_string_memcmp(const JSString *p1, const JSString *p2, int len)
+{
+ int res;
+
+ if (likely(!p1->is_wide_char)) {
+ if (likely(!p2->is_wide_char))
+ res = memcmp(p1->u.str8, p2->u.str8, len);
+ else
+ res = -memcmp16_8(p2->u.str16, p1->u.str8, len);
+ } else {
+ if (!p2->is_wide_char)
+ res = memcmp16_8(p1->u.str16, p2->u.str8, len);
+ else
+ res = memcmp16(p1->u.str16, p2->u.str16, len);
+ }
+ return res;
+}
+
+/* return < 0, 0 or > 0 */
+static int js_string_compare(JSContext *ctx,
+ const JSString *p1, const JSString *p2)
+{
+ int res, len;
+ len = min_int(p1->len, p2->len);
+ res = js_string_memcmp(p1, p2, len);
+ if (res == 0) {
+ if (p1->len == p2->len)
+ res = 0;
+ else if (p1->len < p2->len)
+ res = -1;
+ else
+ res = 1;
+ }
+ return res;
+}
+
+static void copy_str16(uint16_t *dst, const JSString *p, int offset, int len)
+{
+ if (p->is_wide_char) {
+ memcpy(dst, p->u.str16 + offset, len * 2);
+ } else {
+ const uint8_t *src1 = p->u.str8 + offset;
+ int i;
+
+ for(i = 0; i < len; i++)
+ dst[i] = src1[i];
+ }
+}
+
+static JSValue JS_ConcatString1(JSContext *ctx,
+ const JSString *p1, const JSString *p2)
+{
+ JSString *p;
+ uint32_t len;
+ int is_wide_char;
+
+ len = p1->len + p2->len;
+ if (len > JS_STRING_LEN_MAX)
+ return JS_ThrowInternalError(ctx, "string too long");
+ is_wide_char = p1->is_wide_char | p2->is_wide_char;
+ p = js_alloc_string(ctx, len, is_wide_char);
+ if (!p)
+ return JS_EXCEPTION;
+ if (!is_wide_char) {
+ memcpy(p->u.str8, p1->u.str8, p1->len);
+ memcpy(p->u.str8 + p1->len, p2->u.str8, p2->len);
+ p->u.str8[len] = '\0';
+ } else {
+ copy_str16(p->u.str16, p1, 0, p1->len);
+ copy_str16(p->u.str16 + p1->len, p2, 0, p2->len);
+ }
+ return JS_MKPTR(JS_TAG_STRING, p);
+}
+
+static BOOL JS_ConcatStringInPlace(JSContext *ctx, JSString *p1, JSValueConst op2) {
+ if (JS_VALUE_GET_TAG(op2) == JS_TAG_STRING) {
+ JSString *p2 = JS_VALUE_GET_STRING(op2);
+ size_t size1;
+
+ if (p2->len == 0)
+ return TRUE;
+ if (p1->header.ref_count != 1)
+ return FALSE;
+ size1 = js_malloc_usable_size(ctx, p1);
+ if (p1->is_wide_char) {
+ if (size1 >= sizeof(*p1) + ((p1->len + p2->len) << 1)) {
+ if (p2->is_wide_char) {
+ memcpy(p1->u.str16 + p1->len, p2->u.str16, p2->len << 1);
+ p1->len += p2->len;
+ return TRUE;
+ } else {
+ size_t i;
+ for (i = 0; i < p2->len; i++) {
+ p1->u.str16[p1->len++] = p2->u.str8[i];
+ }
+ return TRUE;
+ }
+ }
+ } else if (!p2->is_wide_char) {
+ if (size1 >= sizeof(*p1) + p1->len + p2->len + 1) {
+ memcpy(p1->u.str8 + p1->len, p2->u.str8, p2->len);
+ p1->len += p2->len;
+ p1->u.str8[p1->len] = '\0';
+ return TRUE;
+ }
+ }
+ }
+ return FALSE;
+}
+
+/* op1 and op2 are converted to strings. For convenience, op1 or op2 =
+ JS_EXCEPTION are accepted and return JS_EXCEPTION. */
+static JSValue JS_ConcatString(JSContext *ctx, JSValue op1, JSValue op2)
+{
+ JSValue ret;
+ JSString *p1, *p2;
+
+ if (unlikely(JS_VALUE_GET_TAG(op1) != JS_TAG_STRING)) {
+ op1 = JS_ToStringFree(ctx, op1);
+ if (JS_IsException(op1)) {
+ JS_FreeValue(ctx, op2);
+ return JS_EXCEPTION;
+ }
+ }
+ if (unlikely(JS_VALUE_GET_TAG(op2) != JS_TAG_STRING)) {
+ op2 = JS_ToStringFree(ctx, op2);
+ if (JS_IsException(op2)) {
+ JS_FreeValue(ctx, op1);
+ return JS_EXCEPTION;
+ }
+ }
+ p1 = JS_VALUE_GET_STRING(op1);
+ if (JS_ConcatStringInPlace(ctx, p1, op2)) {
+ JS_FreeValue(ctx, op2);
+ return op1;
+ }
+ p2 = JS_VALUE_GET_STRING(op2);
+ ret = JS_ConcatString1(ctx, p1, p2);
+ JS_FreeValue(ctx, op1);
+ JS_FreeValue(ctx, op2);
+ return ret;
+}
+
+/* Shape support */
+
+static inline size_t get_shape_size(size_t hash_size, size_t prop_size)
+{
+ return hash_size * sizeof(uint32_t) + sizeof(JSShape) +
+ prop_size * sizeof(JSShapeProperty);
+}
+
+static inline JSShape *get_shape_from_alloc(void *sh_alloc, size_t hash_size)
+{
+ return (JSShape *)(void *)((uint32_t *)sh_alloc + hash_size);
+}
+
+static inline uint32_t *prop_hash_end(JSShape *sh)
+{
+ return (uint32_t *)sh;
+}
+
+static inline void *get_alloc_from_shape(JSShape *sh)
+{
+ return prop_hash_end(sh) - ((intptr_t)sh->prop_hash_mask + 1);
+}
+
+static inline JSShapeProperty *get_shape_prop(JSShape *sh)
+{
+ return sh->prop;
+}
+
+static int init_shape_hash(JSRuntime *rt)
+{
+ rt->shape_hash_bits = 4; /* 16 shapes */
+ rt->shape_hash_size = 1 << rt->shape_hash_bits;
+ rt->shape_hash_count = 0;
+ rt->shape_hash = js_mallocz_rt(rt, sizeof(rt->shape_hash[0]) *
+ rt->shape_hash_size);
+ if (!rt->shape_hash)
+ return -1;
+ return 0;
+}
+
+/* same magic hash multiplier as the Linux kernel */
+static uint32_t shape_hash(uint32_t h, uint32_t val)
+{
+ return (h + val) * 0x9e370001;
+}
+
+/* truncate the shape hash to 'hash_bits' bits */
+static uint32_t get_shape_hash(uint32_t h, int hash_bits)
+{
+ return h >> (32 - hash_bits);
+}
+
+static uint32_t shape_initial_hash(JSObject *proto)
+{
+ uint32_t h;
+ h = shape_hash(1, (uintptr_t)proto);
+ if (sizeof(proto) > 4)
+ h = shape_hash(h, (uint64_t)(uintptr_t)proto >> 32);
+ return h;
+}
+
+static int resize_shape_hash(JSRuntime *rt, int new_shape_hash_bits)
+{
+ int new_shape_hash_size, i;
+ uint32_t h;
+ JSShape **new_shape_hash, *sh, *sh_next;
+
+ new_shape_hash_size = 1 << new_shape_hash_bits;
+ new_shape_hash = js_mallocz_rt(rt, sizeof(rt->shape_hash[0]) *
+ new_shape_hash_size);
+ if (!new_shape_hash)
+ return -1;
+ for(i = 0; i < rt->shape_hash_size; i++) {
+ for(sh = rt->shape_hash[i]; sh != NULL; sh = sh_next) {
+ sh_next = sh->shape_hash_next;
+ h = get_shape_hash(sh->hash, new_shape_hash_bits);
+ sh->shape_hash_next = new_shape_hash[h];
+ new_shape_hash[h] = sh;
+ }
+ }
+ js_free_rt(rt, rt->shape_hash);
+ rt->shape_hash_bits = new_shape_hash_bits;
+ rt->shape_hash_size = new_shape_hash_size;
+ rt->shape_hash = new_shape_hash;
+ return 0;
+}
+
+static void js_shape_hash_link(JSRuntime *rt, JSShape *sh)
+{
+ uint32_t h;
+ h = get_shape_hash(sh->hash, rt->shape_hash_bits);
+ sh->shape_hash_next = rt->shape_hash[h];
+ rt->shape_hash[h] = sh;
+ rt->shape_hash_count++;
+}
+
+static void js_shape_hash_unlink(JSRuntime *rt, JSShape *sh)
+{
+ uint32_t h;
+ JSShape **psh;
+
+ h = get_shape_hash(sh->hash, rt->shape_hash_bits);
+ psh = &rt->shape_hash[h];
+ while (*psh != sh)
+ psh = &(*psh)->shape_hash_next;
+ *psh = sh->shape_hash_next;
+ rt->shape_hash_count--;
+}
+
+/* create a new empty shape with prototype 'proto' */
+static no_inline JSShape *js_new_shape2(JSContext *ctx, JSObject *proto,
+ int hash_size, int prop_size)
+{
+ JSRuntime *rt = ctx->rt;
+ void *sh_alloc;
+ JSShape *sh;
+
+ /* resize the shape hash table if necessary */
+ if (2 * (rt->shape_hash_count + 1) > rt->shape_hash_size) {
+ resize_shape_hash(rt, rt->shape_hash_bits + 1);
+ }
+
+ sh_alloc = js_malloc(ctx, get_shape_size(hash_size, prop_size));
+ if (!sh_alloc)
+ return NULL;
+ sh = get_shape_from_alloc(sh_alloc, hash_size);
+ sh->header.ref_count = 1;
+ add_gc_object(rt, &sh->header, JS_GC_OBJ_TYPE_SHAPE);
+ if (proto)
+ JS_DupValue(ctx, JS_MKPTR(JS_TAG_OBJECT, proto));
+ sh->proto = proto;
+ memset(prop_hash_end(sh) - hash_size, 0, sizeof(prop_hash_end(sh)[0]) *
+ hash_size);
+ sh->prop_hash_mask = hash_size - 1;
+ sh->prop_size = prop_size;
+ sh->prop_count = 0;
+ sh->deleted_prop_count = 0;
+
+ /* insert in the hash table */
+ sh->hash = shape_initial_hash(proto);
+ sh->is_hashed = TRUE;
+ sh->has_small_array_index = FALSE;
+ js_shape_hash_link(ctx->rt, sh);
+ return sh;
+}
+
+static JSShape *js_new_shape(JSContext *ctx, JSObject *proto)
+{
+ return js_new_shape2(ctx, proto, JS_PROP_INITIAL_HASH_SIZE,
+ JS_PROP_INITIAL_SIZE);
+}
+
+/* The shape is cloned. The new shape is not inserted in the shape
+ hash table */
+static JSShape *js_clone_shape(JSContext *ctx, JSShape *sh1)
+{
+ JSShape *sh;
+ void *sh_alloc, *sh_alloc1;
+ size_t size;
+ JSShapeProperty *pr;
+ uint32_t i, hash_size;
+
+ hash_size = sh1->prop_hash_mask + 1;
+ size = get_shape_size(hash_size, sh1->prop_size);
+ sh_alloc = js_malloc(ctx, size);
+ if (!sh_alloc)
+ return NULL;
+ sh_alloc1 = get_alloc_from_shape(sh1);
+ memcpy(sh_alloc, sh_alloc1, size);
+ sh = get_shape_from_alloc(sh_alloc, hash_size);
+ sh->header.ref_count = 1;
+ add_gc_object(ctx->rt, &sh->header, JS_GC_OBJ_TYPE_SHAPE);
+ sh->is_hashed = FALSE;
+ if (sh->proto) {
+ JS_DupValue(ctx, JS_MKPTR(JS_TAG_OBJECT, sh->proto));
+ }
+ for(i = 0, pr = get_shape_prop(sh); i < sh->prop_count; i++, pr++) {
+ JS_DupAtom(ctx, pr->atom);
+ }
+ return sh;
+}
+
+static JSShape *js_dup_shape(JSShape *sh)
+{
+ sh->header.ref_count++;
+ return sh;
+}
+
+static void js_free_shape0(JSRuntime *rt, JSShape *sh)
+{
+ uint32_t i;
+ JSShapeProperty *pr;
+
+ assert(sh->header.ref_count == 0);
+ if (sh->is_hashed)
+ js_shape_hash_unlink(rt, sh);
+ if (sh->proto != NULL) {
+ JS_FreeValueRT(rt, JS_MKPTR(JS_TAG_OBJECT, sh->proto));
+ }
+ pr = get_shape_prop(sh);
+ for(i = 0; i < sh->prop_count; i++) {
+ JS_FreeAtomRT(rt, pr->atom);
+ pr++;
+ }
+ remove_gc_object(&sh->header);
+ js_free_rt(rt, get_alloc_from_shape(sh));
+}
+
+static void js_free_shape(JSRuntime *rt, JSShape *sh)
+{
+ if (unlikely(--sh->header.ref_count <= 0)) {
+ js_free_shape0(rt, sh);
+ }
+}
+
+static void js_free_shape_null(JSRuntime *rt, JSShape *sh)
+{
+ if (sh)
+ js_free_shape(rt, sh);
+}
+
+/* make space to hold at least 'count' properties */
+static no_inline int resize_properties(JSContext *ctx, JSShape **psh,
+ JSObject *p, uint32_t count)
+{
+ JSShape *sh;
+ uint32_t new_size, new_hash_size, new_hash_mask, i;
+ JSShapeProperty *pr;
+ void *sh_alloc;
+ intptr_t h;
+ JSShape *old_sh;
+
+ sh = *psh;
+ new_size = max_int(count, sh->prop_size * 3 / 2);
+ /* Reallocate prop array first to avoid crash or size inconsistency
+ in case of memory allocation failure */
+ if (p) {
+ JSProperty *new_prop;
+ new_prop = js_realloc(ctx, p->prop, sizeof(new_prop[0]) * new_size);
+ if (unlikely(!new_prop))
+ return -1;
+ p->prop = new_prop;
+ }
+ new_hash_size = sh->prop_hash_mask + 1;
+ while (new_hash_size < new_size)
+ new_hash_size = 2 * new_hash_size;
+ /* resize the property shapes. Using js_realloc() is not possible in
+ case the GC runs during the allocation */
+ old_sh = sh;
+ sh_alloc = js_malloc(ctx, get_shape_size(new_hash_size, new_size));
+ if (!sh_alloc)
+ return -1;
+ sh = get_shape_from_alloc(sh_alloc, new_hash_size);
+ list_del(&old_sh->header.link);
+ /* copy all the shape properties */
+ memcpy(sh, old_sh,
+ sizeof(JSShape) + sizeof(sh->prop[0]) * old_sh->prop_count);
+ list_add_tail(&sh->header.link, &ctx->rt->gc_obj_list);
+
+ if (new_hash_size != (sh->prop_hash_mask + 1)) {
+ /* resize the hash table and the properties */
+ new_hash_mask = new_hash_size - 1;
+ sh->prop_hash_mask = new_hash_mask;
+ memset(prop_hash_end(sh) - new_hash_size, 0,
+ sizeof(prop_hash_end(sh)[0]) * new_hash_size);
+ for(i = 0, pr = sh->prop; i < sh->prop_count; i++, pr++) {
+ if (pr->atom != JS_ATOM_NULL) {
+ h = ((uintptr_t)pr->atom & new_hash_mask);
+ pr->hash_next = prop_hash_end(sh)[-h - 1];
+ prop_hash_end(sh)[-h - 1] = i + 1;
+ }
+ }
+ } else {
+ /* just copy the previous hash table */
+ memcpy(prop_hash_end(sh) - new_hash_size, prop_hash_end(old_sh) - new_hash_size,
+ sizeof(prop_hash_end(sh)[0]) * new_hash_size);
+ }
+ js_free(ctx, get_alloc_from_shape(old_sh));
+ *psh = sh;
+ sh->prop_size = new_size;
+ return 0;
+}
+
+/* remove the deleted properties. */
+static int compact_properties(JSContext *ctx, JSObject *p)
+{
+ JSShape *sh, *old_sh;
+ void *sh_alloc;
+ intptr_t h;
+ uint32_t new_hash_size, i, j, new_hash_mask, new_size;
+ JSShapeProperty *old_pr, *pr;
+ JSProperty *prop, *new_prop;
+
+ sh = p->shape;
+ assert(!sh->is_hashed);
+
+ new_size = max_int(JS_PROP_INITIAL_SIZE,
+ sh->prop_count - sh->deleted_prop_count);
+ assert(new_size <= sh->prop_size);
+
+ new_hash_size = sh->prop_hash_mask + 1;
+ while ((new_hash_size / 2) >= new_size)
+ new_hash_size = new_hash_size / 2;
+ new_hash_mask = new_hash_size - 1;
+
+ /* resize the hash table and the properties */
+ old_sh = sh;
+ sh_alloc = js_malloc(ctx, get_shape_size(new_hash_size, new_size));
+ if (!sh_alloc)
+ return -1;
+ sh = get_shape_from_alloc(sh_alloc, new_hash_size);
+ list_del(&old_sh->header.link);
+ memcpy(sh, old_sh, sizeof(JSShape));
+ list_add_tail(&sh->header.link, &ctx->rt->gc_obj_list);
+
+ memset(prop_hash_end(sh) - new_hash_size, 0,
+ sizeof(prop_hash_end(sh)[0]) * new_hash_size);
+
+ j = 0;
+ old_pr = old_sh->prop;
+ pr = sh->prop;
+ prop = p->prop;
+ for(i = 0; i < sh->prop_count; i++) {
+ if (old_pr->atom != JS_ATOM_NULL) {
+ pr->atom = old_pr->atom;
+ pr->flags = old_pr->flags;
+ h = ((uintptr_t)old_pr->atom & new_hash_mask);
+ pr->hash_next = prop_hash_end(sh)[-h - 1];
+ prop_hash_end(sh)[-h - 1] = j + 1;
+ prop[j] = prop[i];
+ j++;
+ pr++;
+ }
+ old_pr++;
+ }
+ assert(j == (sh->prop_count - sh->deleted_prop_count));
+ sh->prop_hash_mask = new_hash_mask;
+ sh->prop_size = new_size;
+ sh->deleted_prop_count = 0;
+ sh->prop_count = j;
+
+ p->shape = sh;
+ js_free(ctx, get_alloc_from_shape(old_sh));
+
+ /* reduce the size of the object properties */
+ new_prop = js_realloc(ctx, p->prop, sizeof(new_prop[0]) * new_size);
+ if (new_prop)
+ p->prop = new_prop;
+ return 0;
+}
+
+static int add_shape_property(JSContext *ctx, JSShape **psh,
+ JSObject *p, JSAtom atom, int prop_flags)
+{
+ JSRuntime *rt = ctx->rt;
+ JSShape *sh = *psh;
+ JSShapeProperty *pr, *prop;
+ uint32_t hash_mask, new_shape_hash = 0;
+ intptr_t h;
+
+ /* update the shape hash */
+ if (sh->is_hashed) {
+ js_shape_hash_unlink(rt, sh);
+ new_shape_hash = shape_hash(shape_hash(sh->hash, atom), prop_flags);
+ }
+
+ if (unlikely(sh->prop_count >= sh->prop_size)) {
+ if (resize_properties(ctx, psh, p, sh->prop_count + 1)) {
+ /* in case of error, reinsert in the hash table.
+ sh is still valid if resize_properties() failed */
+ if (sh->is_hashed)
+ js_shape_hash_link(rt, sh);
+ return -1;
+ }
+ sh = *psh;
+ }
+ if (sh->is_hashed) {
+ sh->hash = new_shape_hash;
+ js_shape_hash_link(rt, sh);
+ }
+ /* Initialize the new shape property.
+ The object property at p->prop[sh->prop_count] is uninitialized */
+ prop = get_shape_prop(sh);
+ pr = &prop[sh->prop_count++];
+ pr->atom = JS_DupAtom(ctx, atom);
+ pr->flags = prop_flags;
+ sh->has_small_array_index |= __JS_AtomIsTaggedInt(atom);
+ /* add in hash table */
+ hash_mask = sh->prop_hash_mask;
+ h = atom & hash_mask;
+ pr->hash_next = prop_hash_end(sh)[-h - 1];
+ prop_hash_end(sh)[-h - 1] = sh->prop_count;
+ return 0;
+}
+
+/* find a hashed empty shape matching the prototype. Return NULL if
+ not found */
+static JSShape *find_hashed_shape_proto(JSRuntime *rt, JSObject *proto)
+{
+ JSShape *sh1;
+ uint32_t h, h1;
+
+ h = shape_initial_hash(proto);
+ h1 = get_shape_hash(h, rt->shape_hash_bits);
+ for(sh1 = rt->shape_hash[h1]; sh1 != NULL; sh1 = sh1->shape_hash_next) {
+ if (sh1->hash == h &&
+ sh1->proto == proto &&
+ sh1->prop_count == 0) {
+ return sh1;
+ }
+ }
+ return NULL;
+}
+
+/* find a hashed shape matching sh + (prop, prop_flags). Return NULL if
+ not found */
+static JSShape *find_hashed_shape_prop(JSRuntime *rt, JSShape *sh,
+ JSAtom atom, int prop_flags)
+{
+ JSShape *sh1;
+ uint32_t h, h1, i, n;
+
+ h = sh->hash;
+ h = shape_hash(h, atom);
+ h = shape_hash(h, prop_flags);
+ h1 = get_shape_hash(h, rt->shape_hash_bits);
+ for(sh1 = rt->shape_hash[h1]; sh1 != NULL; sh1 = sh1->shape_hash_next) {
+ /* we test the hash first so that the rest is done only if the
+ shapes really match */
+ if (sh1->hash == h &&
+ sh1->proto == sh->proto &&
+ sh1->prop_count == ((n = sh->prop_count) + 1)) {
+ for(i = 0; i < n; i++) {
+ if (unlikely(sh1->prop[i].atom != sh->prop[i].atom) ||
+ unlikely(sh1->prop[i].flags != sh->prop[i].flags))
+ goto next;
+ }
+ if (unlikely(sh1->prop[n].atom != atom) ||
+ unlikely(sh1->prop[n].flags != prop_flags))
+ goto next;
+ return sh1;
+ }
+ next: ;
+ }
+ return NULL;
+}
+
+static __maybe_unused void JS_DumpShape(JSRuntime *rt, int i, JSShape *sh)
+{
+ char atom_buf[ATOM_GET_STR_BUF_SIZE];
+ int j;
+
+ /* XXX: should output readable class prototype */
+ printf("%5d %3d%c %14p %5d %5d", i,
+ sh->header.ref_count, " *"[sh->is_hashed],
+ (void *)sh->proto, sh->prop_size, sh->prop_count);
+ for(j = 0; j < sh->prop_count; j++) {
+ printf(" %s", JS_AtomGetStrRT(rt, atom_buf, sizeof(atom_buf),
+ sh->prop[j].atom));
+ }
+ printf("\n");
+}
+
+static __maybe_unused void JS_DumpShapes(JSRuntime *rt)
+{
+ int i;
+ JSShape *sh;
+ struct list_head *el;
+ JSObject *p;
+ JSGCObjectHeader *gp;
+
+ printf("JSShapes: {\n");
+ printf("%5s %4s %14s %5s %5s %s\n", "SLOT", "REFS", "PROTO", "SIZE", "COUNT", "PROPS");
+ for(i = 0; i < rt->shape_hash_size; i++) {
+ for(sh = rt->shape_hash[i]; sh != NULL; sh = sh->shape_hash_next) {
+ JS_DumpShape(rt, i, sh);
+ assert(sh->is_hashed);
+ }
+ }
+ /* dump non-hashed shapes */
+ list_for_each(el, &rt->gc_obj_list) {
+ gp = list_entry(el, JSGCObjectHeader, link);
+ if (gp->gc_obj_type == JS_GC_OBJ_TYPE_JS_OBJECT) {
+ p = (JSObject *)gp;
+ if (!p->shape->is_hashed) {
+ JS_DumpShape(rt, -1, p->shape);
+ }
+ }
+ }
+ printf("}\n");
+}
+
+static JSValue JS_NewObjectFromShape(JSContext *ctx, JSShape *sh, JSClassID class_id)
+{
+ JSObject *p;
+
+ js_trigger_gc(ctx->rt, sizeof(JSObject));
+ p = js_malloc(ctx, sizeof(JSObject));
+ if (unlikely(!p))
+ goto fail;
+ p->class_id = class_id;
+ p->extensible = TRUE;
+ p->free_mark = 0;
+ p->is_exotic = 0;
+ p->fast_array = 0;
+ p->is_constructor = 0;
+ p->is_uncatchable_error = 0;
+ p->tmp_mark = 0;
+ p->is_HTMLDDA = 0;
+ p->first_weak_ref = NULL;
+ p->u.opaque = NULL;
+ p->shape = sh;
+ p->prop = js_malloc(ctx, sizeof(JSProperty) * sh->prop_size);
+ if (unlikely(!p->prop)) {
+ js_free(ctx, p);
+ fail:
+ js_free_shape(ctx->rt, sh);
+ return JS_EXCEPTION;
+ }
+
+ switch(class_id) {
+ case JS_CLASS_OBJECT:
+ break;
+ case JS_CLASS_ARRAY:
+ {
+ JSProperty *pr;
+ p->is_exotic = 1;
+ p->fast_array = 1;
+ p->u.array.u.values = NULL;
+ p->u.array.count = 0;
+ p->u.array.u1.size = 0;
+ /* the length property is always the first one */
+ if (likely(sh == ctx->array_shape)) {
+ pr = &p->prop[0];
+ } else {
+ /* only used for the first array */
+ /* cannot fail */
+ pr = add_property(ctx, p, JS_ATOM_length,
+ JS_PROP_WRITABLE | JS_PROP_LENGTH);
+ }
+ pr->u.value = JS_NewInt32(ctx, 0);
+ }
+ break;
+ case JS_CLASS_C_FUNCTION:
+ p->prop[0].u.value = JS_UNDEFINED;
+ break;
+ case JS_CLASS_ARGUMENTS:
+ case JS_CLASS_UINT8C_ARRAY:
+ case JS_CLASS_INT8_ARRAY:
+ case JS_CLASS_UINT8_ARRAY:
+ case JS_CLASS_INT16_ARRAY:
+ case JS_CLASS_UINT16_ARRAY:
+ case JS_CLASS_INT32_ARRAY:
+ case JS_CLASS_UINT32_ARRAY:
+ case JS_CLASS_BIG_INT64_ARRAY:
+ case JS_CLASS_BIG_UINT64_ARRAY:
+ case JS_CLASS_FLOAT32_ARRAY:
+ case JS_CLASS_FLOAT64_ARRAY:
+ p->is_exotic = 1;
+ p->fast_array = 1;
+ p->u.array.u.ptr = NULL;
+ p->u.array.count = 0;
+ break;
+ case JS_CLASS_DATAVIEW:
+ p->u.array.u.ptr = NULL;
+ p->u.array.count = 0;
+ break;
+ case JS_CLASS_NUMBER:
+ case JS_CLASS_STRING:
+ case JS_CLASS_BOOLEAN:
+ case JS_CLASS_SYMBOL:
+ case JS_CLASS_DATE:
+ case JS_CLASS_BIG_INT:
+#ifdef CONFIG_BIGNUM
+ case JS_CLASS_BIG_FLOAT:
+ case JS_CLASS_BIG_DECIMAL:
+#endif
+ p->u.object_data = JS_UNDEFINED;
+ goto set_exotic;
+ case JS_CLASS_REGEXP:
+ p->u.regexp.pattern = NULL;
+ p->u.regexp.bytecode = NULL;
+ goto set_exotic;
+ default:
+ set_exotic:
+ if (ctx->rt->class_array[class_id].exotic) {
+ p->is_exotic = 1;
+ }
+ break;
+ }
+ p->header.ref_count = 1;
+ add_gc_object(ctx->rt, &p->header, JS_GC_OBJ_TYPE_JS_OBJECT);
+ return JS_MKPTR(JS_TAG_OBJECT, p);
+}
+
+static JSObject *get_proto_obj(JSValueConst proto_val)
+{
+ if (JS_VALUE_GET_TAG(proto_val) != JS_TAG_OBJECT)
+ return NULL;
+ else
+ return JS_VALUE_GET_OBJ(proto_val);
+}
+
+/* WARNING: proto must be an object or JS_NULL */
+JSValue JS_NewObjectProtoClass(JSContext *ctx, JSValueConst proto_val,
+ JSClassID class_id)
+{
+ JSShape *sh;
+ JSObject *proto;
+
+ proto = get_proto_obj(proto_val);
+ sh = find_hashed_shape_proto(ctx->rt, proto);
+ if (likely(sh)) {
+ sh = js_dup_shape(sh);
+ } else {
+ sh = js_new_shape(ctx, proto);
+ if (!sh)
+ return JS_EXCEPTION;
+ }
+ return JS_NewObjectFromShape(ctx, sh, class_id);
+}
+
+#if 0
+static JSValue JS_GetObjectData(JSContext *ctx, JSValueConst obj)
+{
+ JSObject *p;
+
+ if (JS_VALUE_GET_TAG(obj) == JS_TAG_OBJECT) {
+ p = JS_VALUE_GET_OBJ(obj);
+ switch(p->class_id) {
+ case JS_CLASS_NUMBER:
+ case JS_CLASS_STRING:
+ case JS_CLASS_BOOLEAN:
+ case JS_CLASS_SYMBOL:
+ case JS_CLASS_DATE:
+ case JS_CLASS_BIG_INT:
+#ifdef CONFIG_BIGNUM
+ case JS_CLASS_BIG_FLOAT:
+ case JS_CLASS_BIG_DECIMAL:
+#endif
+ return JS_DupValue(ctx, p->u.object_data);
+ }
+ }
+ return JS_UNDEFINED;
+}
+#endif
+
+static int JS_SetObjectData(JSContext *ctx, JSValueConst obj, JSValue val)
+{
+ JSObject *p;
+
+ if (JS_VALUE_GET_TAG(obj) == JS_TAG_OBJECT) {
+ p = JS_VALUE_GET_OBJ(obj);
+ switch(p->class_id) {
+ case JS_CLASS_NUMBER:
+ case JS_CLASS_STRING:
+ case JS_CLASS_BOOLEAN:
+ case JS_CLASS_SYMBOL:
+ case JS_CLASS_DATE:
+ case JS_CLASS_BIG_INT:
+#ifdef CONFIG_BIGNUM
+ case JS_CLASS_BIG_FLOAT:
+ case JS_CLASS_BIG_DECIMAL:
+#endif
+ JS_FreeValue(ctx, p->u.object_data);
+ p->u.object_data = val;
+ return 0;
+ }
+ }
+ JS_FreeValue(ctx, val);
+ if (!JS_IsException(obj))
+ JS_ThrowTypeError(ctx, "invalid object type");
+ return -1;
+}
+
+JSValue JS_NewObjectClass(JSContext *ctx, int class_id)
+{
+ return JS_NewObjectProtoClass(ctx, ctx->class_proto[class_id], class_id);
+}
+
+JSValue JS_NewObjectProto(JSContext *ctx, JSValueConst proto)
+{
+ return JS_NewObjectProtoClass(ctx, proto, JS_CLASS_OBJECT);
+}
+
+JSValue JS_NewArray(JSContext *ctx)
+{
+ return JS_NewObjectFromShape(ctx, js_dup_shape(ctx->array_shape),
+ JS_CLASS_ARRAY);
+}
+
+JSValue JS_NewObject(JSContext *ctx)
+{
+ /* inline JS_NewObjectClass(ctx, JS_CLASS_OBJECT); */
+ return JS_NewObjectProtoClass(ctx, ctx->class_proto[JS_CLASS_OBJECT], JS_CLASS_OBJECT);
+}
+
+static void js_function_set_properties(JSContext *ctx, JSValueConst func_obj,
+ JSAtom name, int len)
+{
+ /* ES6 feature non compatible with ES5.1: length is configurable */
+ JS_DefinePropertyValue(ctx, func_obj, JS_ATOM_length, JS_NewInt32(ctx, len),
+ JS_PROP_CONFIGURABLE);
+ JS_DefinePropertyValue(ctx, func_obj, JS_ATOM_name,
+ JS_AtomToString(ctx, name), JS_PROP_CONFIGURABLE);
+}
+
+static BOOL js_class_has_bytecode(JSClassID class_id)
+{
+ return (class_id == JS_CLASS_BYTECODE_FUNCTION ||
+ class_id == JS_CLASS_GENERATOR_FUNCTION ||
+ class_id == JS_CLASS_ASYNC_FUNCTION ||
+ class_id == JS_CLASS_ASYNC_GENERATOR_FUNCTION);
+}
+
+/* return NULL without exception if not a function or no bytecode */
+static JSFunctionBytecode *JS_GetFunctionBytecode(JSValueConst val)
+{
+ JSObject *p;
+ if (JS_VALUE_GET_TAG(val) != JS_TAG_OBJECT)
+ return NULL;
+ p = JS_VALUE_GET_OBJ(val);
+ if (!js_class_has_bytecode(p->class_id))
+ return NULL;
+ return p->u.func.function_bytecode;
+}
+
+static void js_method_set_home_object(JSContext *ctx, JSValueConst func_obj,
+ JSValueConst home_obj)
+{
+ JSObject *p, *p1;
+ JSFunctionBytecode *b;
+
+ if (JS_VALUE_GET_TAG(func_obj) != JS_TAG_OBJECT)
+ return;
+ p = JS_VALUE_GET_OBJ(func_obj);
+ if (!js_class_has_bytecode(p->class_id))
+ return;
+ b = p->u.func.function_bytecode;
+ if (b->need_home_object) {
+ p1 = p->u.func.home_object;
+ if (p1) {
+ JS_FreeValue(ctx, JS_MKPTR(JS_TAG_OBJECT, p1));
+ }
+ if (JS_VALUE_GET_TAG(home_obj) == JS_TAG_OBJECT)
+ p1 = JS_VALUE_GET_OBJ(JS_DupValue(ctx, home_obj));
+ else
+ p1 = NULL;
+ p->u.func.home_object = p1;
+ }
+}
+
+static JSValue js_get_function_name(JSContext *ctx, JSAtom name)
+{
+ JSValue name_str;
+
+ name_str = JS_AtomToString(ctx, name);
+ if (JS_AtomSymbolHasDescription(ctx, name)) {
+ name_str = JS_ConcatString3(ctx, "[", name_str, "]");
+ }
+ return name_str;
+}
+
+/* Modify the name of a method according to the atom and
+ 'flags'. 'flags' is a bitmask of JS_PROP_HAS_GET and
+ JS_PROP_HAS_SET. Also set the home object of the method.
+ Return < 0 if exception. */
+static int js_method_set_properties(JSContext *ctx, JSValueConst func_obj,
+ JSAtom name, int flags, JSValueConst home_obj)
+{
+ JSValue name_str;
+
+ name_str = js_get_function_name(ctx, name);
+ if (flags & JS_PROP_HAS_GET) {
+ name_str = JS_ConcatString3(ctx, "get ", name_str, "");
+ } else if (flags & JS_PROP_HAS_SET) {
+ name_str = JS_ConcatString3(ctx, "set ", name_str, "");
+ }
+ if (JS_IsException(name_str))
+ return -1;
+ if (JS_DefinePropertyValue(ctx, func_obj, JS_ATOM_name, name_str,
+ JS_PROP_CONFIGURABLE) < 0)
+ return -1;
+ js_method_set_home_object(ctx, func_obj, home_obj);
+ return 0;
+}
+
+/* Note: at least 'length' arguments will be readable in 'argv' */
+static JSValue JS_NewCFunction3(JSContext *ctx, JSCFunction *func,
+ const char *name,
+ int length, JSCFunctionEnum cproto, int magic,
+ JSValueConst proto_val)
+{
+ JSValue func_obj;
+ JSObject *p;
+ JSAtom name_atom;
+
+ func_obj = JS_NewObjectProtoClass(ctx, proto_val, JS_CLASS_C_FUNCTION);
+ if (JS_IsException(func_obj))
+ return func_obj;
+ p = JS_VALUE_GET_OBJ(func_obj);
+ p->u.cfunc.realm = JS_DupContext(ctx);
+ p->u.cfunc.c_function.generic = func;
+ p->u.cfunc.length = length;
+ p->u.cfunc.cproto = cproto;
+ p->u.cfunc.magic = magic;
+ p->is_constructor = (cproto == JS_CFUNC_constructor ||
+ cproto == JS_CFUNC_constructor_magic ||
+ cproto == JS_CFUNC_constructor_or_func ||
+ cproto == JS_CFUNC_constructor_or_func_magic);
+ if (!name)
+ name = "";
+ name_atom = JS_NewAtom(ctx, name);
+ js_function_set_properties(ctx, func_obj, name_atom, length);
+ JS_FreeAtom(ctx, name_atom);
+ return func_obj;
+}
+
+/* Note: at least 'length' arguments will be readable in 'argv' */
+JSValue JS_NewCFunction2(JSContext *ctx, JSCFunction *func,
+ const char *name,
+ int length, JSCFunctionEnum cproto, int magic)
+{
+ return JS_NewCFunction3(ctx, func, name, length, cproto, magic,
+ ctx->function_proto);
+}
+
+typedef struct JSCFunctionDataRecord {
+ JSCFunctionData *func;
+ uint8_t length;
+ uint8_t data_len;
+ uint16_t magic;
+ JSValue data[0];
+} JSCFunctionDataRecord;
+
+static void js_c_function_data_finalizer(JSRuntime *rt, JSValue val)
+{
+ JSCFunctionDataRecord *s = JS_GetOpaque(val, JS_CLASS_C_FUNCTION_DATA);
+ int i;
+
+ if (s) {
+ for(i = 0; i < s->data_len; i++) {
+ JS_FreeValueRT(rt, s->data[i]);
+ }
+ js_free_rt(rt, s);
+ }
+}
+
+static void js_c_function_data_mark(JSRuntime *rt, JSValueConst val,
+ JS_MarkFunc *mark_func)
+{
+ JSCFunctionDataRecord *s = JS_GetOpaque(val, JS_CLASS_C_FUNCTION_DATA);
+ int i;
+
+ if (s) {
+ for(i = 0; i < s->data_len; i++) {
+ JS_MarkValue(rt, s->data[i], mark_func);
+ }
+ }
+}
+
+static JSValue js_c_function_data_call(JSContext *ctx, JSValueConst func_obj,
+ JSValueConst this_val,
+ int argc, JSValueConst *argv, int flags)
+{
+ JSCFunctionDataRecord *s = JS_GetOpaque(func_obj, JS_CLASS_C_FUNCTION_DATA);
+ JSValueConst *arg_buf;
+ int i;
+
+ /* XXX: could add the function on the stack for debug */
+ if (unlikely(argc < s->length)) {
+ arg_buf = alloca(sizeof(arg_buf[0]) * s->length);
+ for(i = 0; i < argc; i++)
+ arg_buf[i] = argv[i];
+ for(i = argc; i < s->length; i++)
+ arg_buf[i] = JS_UNDEFINED;
+ } else {
+ arg_buf = argv;
+ }
+
+ return s->func(ctx, this_val, argc, arg_buf, s->magic, s->data);
+}
+
+JSValue JS_NewCFunctionData(JSContext *ctx, JSCFunctionData *func,
+ int length, int magic, int data_len,
+ JSValueConst *data)
+{
+ JSCFunctionDataRecord *s;
+ JSValue func_obj;
+ int i;
+
+ func_obj = JS_NewObjectProtoClass(ctx, ctx->function_proto,
+ JS_CLASS_C_FUNCTION_DATA);
+ if (JS_IsException(func_obj))
+ return func_obj;
+ s = js_malloc(ctx, sizeof(*s) + data_len * sizeof(JSValue));
+ if (!s) {
+ JS_FreeValue(ctx, func_obj);
+ return JS_EXCEPTION;
+ }
+ s->func = func;
+ s->length = length;
+ s->data_len = data_len;
+ s->magic = magic;
+ for(i = 0; i < data_len; i++)
+ s->data[i] = JS_DupValue(ctx, data[i]);
+ JS_SetOpaque(func_obj, s);
+ js_function_set_properties(ctx, func_obj,
+ JS_ATOM_empty_string, length);
+ return func_obj;
+}
+
+static JSContext *js_autoinit_get_realm(JSProperty *pr)
+{
+ return (JSContext *)(pr->u.init.realm_and_id & ~3);
+}
+
+static JSAutoInitIDEnum js_autoinit_get_id(JSProperty *pr)
+{
+ return pr->u.init.realm_and_id & 3;
+}
+
+static void js_autoinit_free(JSRuntime *rt, JSProperty *pr)
+{
+ JS_FreeContext(js_autoinit_get_realm(pr));
+}
+
+static void js_autoinit_mark(JSRuntime *rt, JSProperty *pr,
+ JS_MarkFunc *mark_func)
+{
+ mark_func(rt, &js_autoinit_get_realm(pr)->header);
+}
+
+static void free_property(JSRuntime *rt, JSProperty *pr, int prop_flags)
+{
+ if (unlikely(prop_flags & JS_PROP_TMASK)) {
+ if ((prop_flags & JS_PROP_TMASK) == JS_PROP_GETSET) {
+ if (pr->u.getset.getter)
+ JS_FreeValueRT(rt, JS_MKPTR(JS_TAG_OBJECT, pr->u.getset.getter));
+ if (pr->u.getset.setter)
+ JS_FreeValueRT(rt, JS_MKPTR(JS_TAG_OBJECT, pr->u.getset.setter));
+ } else if ((prop_flags & JS_PROP_TMASK) == JS_PROP_VARREF) {
+ free_var_ref(rt, pr->u.var_ref);
+ } else if ((prop_flags & JS_PROP_TMASK) == JS_PROP_AUTOINIT) {
+ js_autoinit_free(rt, pr);
+ }
+ } else {
+ JS_FreeValueRT(rt, pr->u.value);
+ }
+}
+
+static force_inline JSShapeProperty *find_own_property1(JSObject *p,
+ JSAtom atom)
+{
+ JSShape *sh;
+ JSShapeProperty *pr, *prop;
+ intptr_t h;
+ sh = p->shape;
+ h = (uintptr_t)atom & sh->prop_hash_mask;
+ h = prop_hash_end(sh)[-h - 1];
+ prop = get_shape_prop(sh);
+ while (h) {
+ pr = &prop[h - 1];
+ if (likely(pr->atom == atom)) {
+ return pr;
+ }
+ h = pr->hash_next;
+ }
+ return NULL;
+}
+
+static force_inline JSShapeProperty *find_own_property(JSProperty **ppr,
+ JSObject *p,
+ JSAtom atom)
+{
+ JSShape *sh;
+ JSShapeProperty *pr, *prop;
+ intptr_t h;
+ sh = p->shape;
+ h = (uintptr_t)atom & sh->prop_hash_mask;
+ h = prop_hash_end(sh)[-h - 1];
+ prop = get_shape_prop(sh);
+ while (h) {
+ pr = &prop[h - 1];
+ if (likely(pr->atom == atom)) {
+ *ppr = &p->prop[h - 1];
+ /* the compiler should be able to assume that pr != NULL here */
+ return pr;
+ }
+ h = pr->hash_next;
+ }
+ *ppr = NULL;
+ return NULL;
+}
+
+/* indicate that the object may be part of a function prototype cycle */
+static void set_cycle_flag(JSContext *ctx, JSValueConst obj)
+{
+}
+
+static void free_var_ref(JSRuntime *rt, JSVarRef *var_ref)
+{
+ if (var_ref) {
+ assert(var_ref->header.ref_count > 0);
+ if (--var_ref->header.ref_count == 0) {
+ if (var_ref->is_detached) {
+ JS_FreeValueRT(rt, var_ref->value);
+ } else {
+ list_del(&var_ref->var_ref_link); /* still on the stack */
+ if (var_ref->async_func)
+ async_func_free(rt, var_ref->async_func);
+ }
+ remove_gc_object(&var_ref->header);
+ js_free_rt(rt, var_ref);
+ }
+ }
+}
+
+static void js_array_finalizer(JSRuntime *rt, JSValue val)
+{
+ JSObject *p = JS_VALUE_GET_OBJ(val);
+ int i;
+
+ for(i = 0; i < p->u.array.count; i++) {
+ JS_FreeValueRT(rt, p->u.array.u.values[i]);
+ }
+ js_free_rt(rt, p->u.array.u.values);
+}
+
+static void js_array_mark(JSRuntime *rt, JSValueConst val,
+ JS_MarkFunc *mark_func)
+{
+ JSObject *p = JS_VALUE_GET_OBJ(val);
+ int i;
+
+ for(i = 0; i < p->u.array.count; i++) {
+ JS_MarkValue(rt, p->u.array.u.values[i], mark_func);
+ }
+}
+
+static void js_object_data_finalizer(JSRuntime *rt, JSValue val)
+{
+ JSObject *p = JS_VALUE_GET_OBJ(val);
+ JS_FreeValueRT(rt, p->u.object_data);
+ p->u.object_data = JS_UNDEFINED;
+}
+
+static void js_object_data_mark(JSRuntime *rt, JSValueConst val,
+ JS_MarkFunc *mark_func)
+{
+ JSObject *p = JS_VALUE_GET_OBJ(val);
+ JS_MarkValue(rt, p->u.object_data, mark_func);
+}
+
+static void js_c_function_finalizer(JSRuntime *rt, JSValue val)
+{
+ JSObject *p = JS_VALUE_GET_OBJ(val);
+
+ if (p->u.cfunc.realm)
+ JS_FreeContext(p->u.cfunc.realm);
+}
+
+static void js_c_function_mark(JSRuntime *rt, JSValueConst val,
+ JS_MarkFunc *mark_func)
+{
+ JSObject *p = JS_VALUE_GET_OBJ(val);
+
+ if (p->u.cfunc.realm)
+ mark_func(rt, &p->u.cfunc.realm->header);
+}
+
+static void js_bytecode_function_finalizer(JSRuntime *rt, JSValue val)
+{
+ JSObject *p1, *p = JS_VALUE_GET_OBJ(val);
+ JSFunctionBytecode *b;
+ JSVarRef **var_refs;
+ int i;
+
+ p1 = p->u.func.home_object;
+ if (p1) {
+ JS_FreeValueRT(rt, JS_MKPTR(JS_TAG_OBJECT, p1));
+ }
+ b = p->u.func.function_bytecode;
+ if (b) {
+ var_refs = p->u.func.var_refs;
+ if (var_refs) {
+ for(i = 0; i < b->closure_var_count; i++)
+ free_var_ref(rt, var_refs[i]);
+ js_free_rt(rt, var_refs);
+ }
+ JS_FreeValueRT(rt, JS_MKPTR(JS_TAG_FUNCTION_BYTECODE, b));
+ }
+}
+
+static void js_bytecode_function_mark(JSRuntime *rt, JSValueConst val,
+ JS_MarkFunc *mark_func)
+{
+ JSObject *p = JS_VALUE_GET_OBJ(val);
+ JSVarRef **var_refs = p->u.func.var_refs;
+ JSFunctionBytecode *b = p->u.func.function_bytecode;
+ int i;
+
+ if (p->u.func.home_object) {
+ JS_MarkValue(rt, JS_MKPTR(JS_TAG_OBJECT, p->u.func.home_object),
+ mark_func);
+ }
+ if (b) {
+ if (var_refs) {
+ for(i = 0; i < b->closure_var_count; i++) {
+ JSVarRef *var_ref = var_refs[i];
+ if (var_ref) {
+ mark_func(rt, &var_ref->header);
+ }
+ }
+ }
+ /* must mark the function bytecode because template objects may be
+ part of a cycle */
+ JS_MarkValue(rt, JS_MKPTR(JS_TAG_FUNCTION_BYTECODE, b), mark_func);
+ }
+}
+
+static void js_bound_function_finalizer(JSRuntime *rt, JSValue val)
+{
+ JSObject *p = JS_VALUE_GET_OBJ(val);
+ JSBoundFunction *bf = p->u.bound_function;
+ int i;
+
+ JS_FreeValueRT(rt, bf->func_obj);
+ JS_FreeValueRT(rt, bf->this_val);
+ for(i = 0; i < bf->argc; i++) {
+ JS_FreeValueRT(rt, bf->argv[i]);
+ }
+ js_free_rt(rt, bf);
+}
+
+static void js_bound_function_mark(JSRuntime *rt, JSValueConst val,
+ JS_MarkFunc *mark_func)
+{
+ JSObject *p = JS_VALUE_GET_OBJ(val);
+ JSBoundFunction *bf = p->u.bound_function;
+ int i;
+
+ JS_MarkValue(rt, bf->func_obj, mark_func);
+ JS_MarkValue(rt, bf->this_val, mark_func);
+ for(i = 0; i < bf->argc; i++)
+ JS_MarkValue(rt, bf->argv[i], mark_func);
+}
+
+static void js_for_in_iterator_finalizer(JSRuntime *rt, JSValue val)
+{
+ JSObject *p = JS_VALUE_GET_OBJ(val);
+ JSForInIterator *it = p->u.for_in_iterator;
+ int i;
+
+ JS_FreeValueRT(rt, it->obj);
+ if (!it->is_array) {
+ for(i = 0; i < it->atom_count; i++) {
+ JS_FreeAtomRT(rt, it->tab_atom[i].atom);
+ }
+ js_free_rt(rt, it->tab_atom);
+ }
+ js_free_rt(rt, it);
+}
+
+static void js_for_in_iterator_mark(JSRuntime *rt, JSValueConst val,
+ JS_MarkFunc *mark_func)
+{
+ JSObject *p = JS_VALUE_GET_OBJ(val);
+ JSForInIterator *it = p->u.for_in_iterator;
+ JS_MarkValue(rt, it->obj, mark_func);
+}
+
+static void free_object(JSRuntime *rt, JSObject *p)
+{
+ int i;
+ JSClassFinalizer *finalizer;
+ JSShape *sh;
+ JSShapeProperty *pr;
+
+ p->free_mark = 1; /* used to tell the object is invalid when
+ freeing cycles */
+ /* free all the fields */
+ sh = p->shape;
+ pr = get_shape_prop(sh);
+ for(i = 0; i < sh->prop_count; i++) {
+ free_property(rt, &p->prop[i], pr->flags);
+ pr++;
+ }
+ js_free_rt(rt, p->prop);
+ /* as an optimization we destroy the shape immediately without
+ putting it in gc_zero_ref_count_list */
+ js_free_shape(rt, sh);
+
+ /* fail safe */
+ p->shape = NULL;
+ p->prop = NULL;
+
+ if (unlikely(p->first_weak_ref)) {
+ reset_weak_ref(rt, p);
+ }
+
+ finalizer = rt->class_array[p->class_id].finalizer;
+ if (finalizer)
+ (*finalizer)(rt, JS_MKPTR(JS_TAG_OBJECT, p));
+
+ /* fail safe */
+ p->class_id = 0;
+ p->u.opaque = NULL;
+ p->u.func.var_refs = NULL;
+ p->u.func.home_object = NULL;
+
+ remove_gc_object(&p->header);
+ if (rt->gc_phase == JS_GC_PHASE_REMOVE_CYCLES && p->header.ref_count != 0) {
+ list_add_tail(&p->header.link, &rt->gc_zero_ref_count_list);
+ } else {
+ js_free_rt(rt, p);
+ }
+}
+
+static void free_gc_object(JSRuntime *rt, JSGCObjectHeader *gp)
+{
+ switch(gp->gc_obj_type) {
+ case JS_GC_OBJ_TYPE_JS_OBJECT:
+ free_object(rt, (JSObject *)gp);
+ break;
+ case JS_GC_OBJ_TYPE_FUNCTION_BYTECODE:
+ free_function_bytecode(rt, (JSFunctionBytecode *)gp);
+ break;
+ case JS_GC_OBJ_TYPE_ASYNC_FUNCTION:
+ __async_func_free(rt, (JSAsyncFunctionState *)gp);
+ break;
+ default:
+ abort();
+ }
+}
+
+static void free_zero_refcount(JSRuntime *rt)
+{
+ struct list_head *el;
+ JSGCObjectHeader *p;
+
+ rt->gc_phase = JS_GC_PHASE_DECREF;
+ for(;;) {
+ el = rt->gc_zero_ref_count_list.next;
+ if (el == &rt->gc_zero_ref_count_list)
+ break;
+ p = list_entry(el, JSGCObjectHeader, link);
+ assert(p->ref_count == 0);
+ free_gc_object(rt, p);
+ }
+ rt->gc_phase = JS_GC_PHASE_NONE;
+}
+
+/* called with the ref_count of 'v' reaches zero. */
+void __JS_FreeValueRT(JSRuntime *rt, JSValue v)
+{
+ uint32_t tag = JS_VALUE_GET_TAG(v);
+
+#ifdef DUMP_FREE
+ {
+ printf("Freeing ");
+ if (tag == JS_TAG_OBJECT) {
+ JS_DumpObject(rt, JS_VALUE_GET_OBJ(v));
+ } else {
+ JS_DumpValueShort(rt, v);
+ printf("\n");
+ }
+ }
+#endif
+
+ switch(tag) {
+ case JS_TAG_STRING:
+ {
+ JSString *p = JS_VALUE_GET_STRING(v);
+ if (p->atom_type) {
+ JS_FreeAtomStruct(rt, p);
+ } else {
+#ifdef DUMP_LEAKS
+ list_del(&p->link);
+#endif
+ js_free_rt(rt, p);
+ }
+ }
+ break;
+ case JS_TAG_OBJECT:
+ case JS_TAG_FUNCTION_BYTECODE:
+ {
+ JSGCObjectHeader *p = JS_VALUE_GET_PTR(v);
+ if (rt->gc_phase != JS_GC_PHASE_REMOVE_CYCLES) {
+ list_del(&p->link);
+ list_add(&p->link, &rt->gc_zero_ref_count_list);
+ if (rt->gc_phase == JS_GC_PHASE_NONE) {
+ free_zero_refcount(rt);
+ }
+ }
+ }
+ break;
+ case JS_TAG_MODULE:
+ abort(); /* never freed here */
+ break;
+ case JS_TAG_BIG_INT:
+#ifdef CONFIG_BIGNUM
+ case JS_TAG_BIG_FLOAT:
+#endif
+ {
+ JSBigFloat *bf = JS_VALUE_GET_PTR(v);
+ bf_delete(&bf->num);
+ js_free_rt(rt, bf);
+ }
+ break;
+#ifdef CONFIG_BIGNUM
+ case JS_TAG_BIG_DECIMAL:
+ {
+ JSBigDecimal *bf = JS_VALUE_GET_PTR(v);
+ bfdec_delete(&bf->num);
+ js_free_rt(rt, bf);
+ }
+ break;
+#endif
+ case JS_TAG_SYMBOL:
+ {
+ JSAtomStruct *p = JS_VALUE_GET_PTR(v);
+ JS_FreeAtomStruct(rt, p);
+ }
+ break;
+ default:
+ printf("__JS_FreeValue: unknown tag=%d\n", tag);
+ abort();
+ }
+}
+
+void __JS_FreeValue(JSContext *ctx, JSValue v)
+{
+ __JS_FreeValueRT(ctx->rt, v);
+}
+
+/* garbage collection */
+
+static void add_gc_object(JSRuntime *rt, JSGCObjectHeader *h,
+ JSGCObjectTypeEnum type)
+{
+ h->mark = 0;
+ h->gc_obj_type = type;
+ list_add_tail(&h->link, &rt->gc_obj_list);
+}
+
+static void remove_gc_object(JSGCObjectHeader *h)
+{
+ list_del(&h->link);
+}
+
+void JS_MarkValue(JSRuntime *rt, JSValueConst val, JS_MarkFunc *mark_func)
+{
+ if (JS_VALUE_HAS_REF_COUNT(val)) {
+ switch(JS_VALUE_GET_TAG(val)) {
+ case JS_TAG_OBJECT:
+ case JS_TAG_FUNCTION_BYTECODE:
+ mark_func(rt, JS_VALUE_GET_PTR(val));
+ break;
+ default:
+ break;
+ }
+ }
+}
+
+static void mark_children(JSRuntime *rt, JSGCObjectHeader *gp,
+ JS_MarkFunc *mark_func)
+{
+ switch(gp->gc_obj_type) {
+ case JS_GC_OBJ_TYPE_JS_OBJECT:
+ {
+ JSObject *p = (JSObject *)gp;
+ JSShapeProperty *prs;
+ JSShape *sh;
+ int i;
+ sh = p->shape;
+ mark_func(rt, &sh->header);
+ /* mark all the fields */
+ prs = get_shape_prop(sh);
+ for(i = 0; i < sh->prop_count; i++) {
+ JSProperty *pr = &p->prop[i];
+ if (prs->atom != JS_ATOM_NULL) {
+ if (prs->flags & JS_PROP_TMASK) {
+ if ((prs->flags & JS_PROP_TMASK) == JS_PROP_GETSET) {
+ if (pr->u.getset.getter)
+ mark_func(rt, &pr->u.getset.getter->header);
+ if (pr->u.getset.setter)
+ mark_func(rt, &pr->u.getset.setter->header);
+ } else if ((prs->flags & JS_PROP_TMASK) == JS_PROP_VARREF) {
+ /* Note: the tag does not matter
+ provided it is a GC object */
+ mark_func(rt, &pr->u.var_ref->header);
+ } else if ((prs->flags & JS_PROP_TMASK) == JS_PROP_AUTOINIT) {
+ js_autoinit_mark(rt, pr, mark_func);
+ }
+ } else {
+ JS_MarkValue(rt, pr->u.value, mark_func);
+ }
+ }
+ prs++;
+ }
+
+ if (p->class_id != JS_CLASS_OBJECT) {
+ JSClassGCMark *gc_mark;
+ gc_mark = rt->class_array[p->class_id].gc_mark;
+ if (gc_mark)
+ gc_mark(rt, JS_MKPTR(JS_TAG_OBJECT, p), mark_func);
+ }
+ }
+ break;
+ case JS_GC_OBJ_TYPE_FUNCTION_BYTECODE:
+ /* the template objects can be part of a cycle */
+ {
+ JSFunctionBytecode *b = (JSFunctionBytecode *)gp;
+ int i;
+ for(i = 0; i < b->cpool_count; i++) {
+ JS_MarkValue(rt, b->cpool[i], mark_func);
+ }
+ if (b->realm)
+ mark_func(rt, &b->realm->header);
+ }
+ break;
+ case JS_GC_OBJ_TYPE_VAR_REF:
+ {
+ JSVarRef *var_ref = (JSVarRef *)gp;
+ if (var_ref->is_detached) {
+ JS_MarkValue(rt, *var_ref->pvalue, mark_func);
+ } else if (var_ref->async_func) {
+ mark_func(rt, &var_ref->async_func->header);
+ }
+ }
+ break;
+ case JS_GC_OBJ_TYPE_ASYNC_FUNCTION:
+ {
+ JSAsyncFunctionState *s = (JSAsyncFunctionState *)gp;
+ JSStackFrame *sf = &s->frame;
+ JSValue *sp;
+
+ if (!s->is_completed) {
+ JS_MarkValue(rt, sf->cur_func, mark_func);
+ JS_MarkValue(rt, s->this_val, mark_func);
+ /* sf->cur_sp = NULL if the function is running */
+ if (sf->cur_sp) {
+ /* if the function is running, cur_sp is not known so we
+ cannot mark the stack. Marking the variables is not needed
+ because a running function cannot be part of a removable
+ cycle */
+ for(sp = sf->arg_buf; sp < sf->cur_sp; sp++)
+ JS_MarkValue(rt, *sp, mark_func);
+ }
+ }
+ JS_MarkValue(rt, s->resolving_funcs[0], mark_func);
+ JS_MarkValue(rt, s->resolving_funcs[1], mark_func);
+ }
+ break;
+ case JS_GC_OBJ_TYPE_SHAPE:
+ {
+ JSShape *sh = (JSShape *)gp;
+ if (sh->proto != NULL) {
+ mark_func(rt, &sh->proto->header);
+ }
+ }
+ break;
+ case JS_GC_OBJ_TYPE_JS_CONTEXT:
+ {
+ JSContext *ctx = (JSContext *)gp;
+ JS_MarkContext(rt, ctx, mark_func);
+ }
+ break;
+ default:
+ abort();
+ }
+}
+
+static void gc_decref_child(JSRuntime *rt, JSGCObjectHeader *p)
+{
+ assert(p->ref_count > 0);
+ p->ref_count--;
+ if (p->ref_count == 0 && p->mark == 1) {
+ list_del(&p->link);
+ list_add_tail(&p->link, &rt->tmp_obj_list);
+ }
+}
+
+static void gc_decref(JSRuntime *rt)
+{
+ struct list_head *el, *el1;
+ JSGCObjectHeader *p;
+
+ init_list_head(&rt->tmp_obj_list);
+
+ /* decrement the refcount of all the children of all the GC
+ objects and move the GC objects with zero refcount to
+ tmp_obj_list */
+ list_for_each_safe(el, el1, &rt->gc_obj_list) {
+ p = list_entry(el, JSGCObjectHeader, link);
+ assert(p->mark == 0);
+ mark_children(rt, p, gc_decref_child);
+ p->mark = 1;
+ if (p->ref_count == 0) {
+ list_del(&p->link);
+ list_add_tail(&p->link, &rt->tmp_obj_list);
+ }
+ }
+}
+
+static void gc_scan_incref_child(JSRuntime *rt, JSGCObjectHeader *p)
+{
+ p->ref_count++;
+ if (p->ref_count == 1) {
+ /* ref_count was 0: remove from tmp_obj_list and add at the
+ end of gc_obj_list */
+ list_del(&p->link);
+ list_add_tail(&p->link, &rt->gc_obj_list);
+ p->mark = 0; /* reset the mark for the next GC call */
+ }
+}
+
+static void gc_scan_incref_child2(JSRuntime *rt, JSGCObjectHeader *p)
+{
+ p->ref_count++;
+}
+
+static void gc_scan(JSRuntime *rt)
+{
+ struct list_head *el;
+ JSGCObjectHeader *p;
+
+ /* keep the objects with a refcount > 0 and their children. */
+ list_for_each(el, &rt->gc_obj_list) {
+ p = list_entry(el, JSGCObjectHeader, link);
+ assert(p->ref_count > 0);
+ p->mark = 0; /* reset the mark for the next GC call */
+ mark_children(rt, p, gc_scan_incref_child);
+ }
+
+ /* restore the refcount of the objects to be deleted. */
+ list_for_each(el, &rt->tmp_obj_list) {
+ p = list_entry(el, JSGCObjectHeader, link);
+ mark_children(rt, p, gc_scan_incref_child2);
+ }
+}
+
+static void gc_free_cycles(JSRuntime *rt)
+{
+ struct list_head *el, *el1;
+ JSGCObjectHeader *p;
+#ifdef DUMP_GC_FREE
+ BOOL header_done = FALSE;
+#endif
+
+ rt->gc_phase = JS_GC_PHASE_REMOVE_CYCLES;
+
+ for(;;) {
+ el = rt->tmp_obj_list.next;
+ if (el == &rt->tmp_obj_list)
+ break;
+ p = list_entry(el, JSGCObjectHeader, link);
+ /* Only need to free the GC object associated with JS values
+ or async functions. The rest will be automatically removed
+ because they must be referenced by them. */
+ switch(p->gc_obj_type) {
+ case JS_GC_OBJ_TYPE_JS_OBJECT:
+ case JS_GC_OBJ_TYPE_FUNCTION_BYTECODE:
+ case JS_GC_OBJ_TYPE_ASYNC_FUNCTION:
+#ifdef DUMP_GC_FREE
+ if (!header_done) {
+ printf("Freeing cycles:\n");
+ JS_DumpObjectHeader(rt);
+ header_done = TRUE;
+ }
+ JS_DumpGCObject(rt, p);
+#endif
+ free_gc_object(rt, p);
+ break;
+ default:
+ list_del(&p->link);
+ list_add_tail(&p->link, &rt->gc_zero_ref_count_list);
+ break;
+ }
+ }
+ rt->gc_phase = JS_GC_PHASE_NONE;
+
+ list_for_each_safe(el, el1, &rt->gc_zero_ref_count_list) {
+ p = list_entry(el, JSGCObjectHeader, link);
+ assert(p->gc_obj_type == JS_GC_OBJ_TYPE_JS_OBJECT ||
+ p->gc_obj_type == JS_GC_OBJ_TYPE_FUNCTION_BYTECODE ||
+ p->gc_obj_type == JS_GC_OBJ_TYPE_ASYNC_FUNCTION);
+ js_free_rt(rt, p);
+ }
+
+ init_list_head(&rt->gc_zero_ref_count_list);
+}
+
+void JS_RunGC(JSRuntime *rt)
+{
+ /* decrement the reference of the children of each object. mark =
+ 1 after this pass. */
+ gc_decref(rt);
+
+ /* keep the GC objects with a non zero refcount and their childs */
+ gc_scan(rt);
+
+ /* free the GC objects in a cycle */
+ gc_free_cycles(rt);
+}
+
+/* Return false if not an object or if the object has already been
+ freed (zombie objects are visible in finalizers when freeing
+ cycles). */
+BOOL JS_IsLiveObject(JSRuntime *rt, JSValueConst obj)
+{
+ JSObject *p;
+ if (!JS_IsObject(obj))
+ return FALSE;
+ p = JS_VALUE_GET_OBJ(obj);
+ return !p->free_mark;
+}
+
+/* Compute memory used by various object types */
+/* XXX: poor man's approach to handling multiply referenced objects */
+typedef struct JSMemoryUsage_helper {
+ double memory_used_count;
+ double str_count;
+ double str_size;
+ int64_t js_func_count;
+ double js_func_size;
+ int64_t js_func_code_size;
+ int64_t js_func_pc2line_count;
+ int64_t js_func_pc2line_size;
+} JSMemoryUsage_helper;
+
+static void compute_value_size(JSValueConst val, JSMemoryUsage_helper *hp);
+
+static void compute_jsstring_size(JSString *str, JSMemoryUsage_helper *hp)
+{
+ if (!str->atom_type) { /* atoms are handled separately */
+ double s_ref_count = str->header.ref_count;
+ hp->str_count += 1 / s_ref_count;
+ hp->str_size += ((sizeof(*str) + (str->len << str->is_wide_char) +
+ 1 - str->is_wide_char) / s_ref_count);
+ }
+}
+
+static void compute_bytecode_size(JSFunctionBytecode *b, JSMemoryUsage_helper *hp)
+{
+ int memory_used_count, js_func_size, i;
+
+ memory_used_count = 0;
+ js_func_size = offsetof(JSFunctionBytecode, debug);
+ if (b->vardefs) {
+ js_func_size += (b->arg_count + b->var_count) * sizeof(*b->vardefs);
+ }
+ if (b->cpool) {
+ js_func_size += b->cpool_count * sizeof(*b->cpool);
+ for (i = 0; i < b->cpool_count; i++) {
+ JSValueConst val = b->cpool[i];
+ compute_value_size(val, hp);
+ }
+ }
+ if (b->closure_var) {
+ js_func_size += b->closure_var_count * sizeof(*b->closure_var);
+ }
+ if (!b->read_only_bytecode && b->byte_code_buf) {
+ hp->js_func_code_size += b->byte_code_len;
+ }
+ if (b->has_debug) {
+ js_func_size += sizeof(*b) - offsetof(JSFunctionBytecode, debug);
+ if (b->debug.source) {
+ memory_used_count++;
+ js_func_size += b->debug.source_len + 1;
+ }
+ if (b->debug.pc2line_len) {
+ memory_used_count++;
+ hp->js_func_pc2line_count += 1;
+ hp->js_func_pc2line_size += b->debug.pc2line_len;
+ }
+ }
+ hp->js_func_size += js_func_size;
+ hp->js_func_count += 1;
+ hp->memory_used_count += memory_used_count;
+}
+
+static void compute_value_size(JSValueConst val, JSMemoryUsage_helper *hp)
+{
+ switch(JS_VALUE_GET_TAG(val)) {
+ case JS_TAG_STRING:
+ compute_jsstring_size(JS_VALUE_GET_STRING(val), hp);
+ break;
+ case JS_TAG_BIG_INT:
+#ifdef CONFIG_BIGNUM
+ case JS_TAG_BIG_FLOAT:
+ case JS_TAG_BIG_DECIMAL:
+#endif
+ /* should track JSBigFloat usage */
+ break;
+ }
+}
+
+void JS_ComputeMemoryUsage(JSRuntime *rt, JSMemoryUsage *s)
+{
+ struct list_head *el, *el1;
+ int i;
+ JSMemoryUsage_helper mem = { 0 }, *hp = &mem;
+
+ memset(s, 0, sizeof(*s));
+ s->malloc_count = rt->malloc_state.malloc_count;
+ s->malloc_size = rt->malloc_state.malloc_size;
+ s->malloc_limit = rt->malloc_state.malloc_limit;
+
+ s->memory_used_count = 2; /* rt + rt->class_array */
+ s->memory_used_size = sizeof(JSRuntime) + sizeof(JSValue) * rt->class_count;
+
+ list_for_each(el, &rt->context_list) {
+ JSContext *ctx = list_entry(el, JSContext, link);
+ JSShape *sh = ctx->array_shape;
+ s->memory_used_count += 2; /* ctx + ctx->class_proto */
+ s->memory_used_size += sizeof(JSContext) +
+ sizeof(JSValue) * rt->class_count;
+ s->binary_object_count += ctx->binary_object_count;
+ s->binary_object_size += ctx->binary_object_size;
+
+ /* the hashed shapes are counted separately */
+ if (sh && !sh->is_hashed) {
+ int hash_size = sh->prop_hash_mask + 1;
+ s->shape_count++;
+ s->shape_size += get_shape_size(hash_size, sh->prop_size);
+ }
+ list_for_each(el1, &ctx->loaded_modules) {
+ JSModuleDef *m = list_entry(el1, JSModuleDef, link);
+ s->memory_used_count += 1;
+ s->memory_used_size += sizeof(*m);
+ if (m->req_module_entries) {
+ s->memory_used_count += 1;
+ s->memory_used_size += m->req_module_entries_count * sizeof(*m->req_module_entries);
+ }
+ if (m->export_entries) {
+ s->memory_used_count += 1;
+ s->memory_used_size += m->export_entries_count * sizeof(*m->export_entries);
+ for (i = 0; i < m->export_entries_count; i++) {
+ JSExportEntry *me = &m->export_entries[i];
+ if (me->export_type == JS_EXPORT_TYPE_LOCAL && me->u.local.var_ref) {
+ /* potential multiple count */
+ s->memory_used_count += 1;
+ compute_value_size(me->u.local.var_ref->value, hp);
+ }
+ }
+ }
+ if (m->star_export_entries) {
+ s->memory_used_count += 1;
+ s->memory_used_size += m->star_export_entries_count * sizeof(*m->star_export_entries);
+ }
+ if (m->import_entries) {
+ s->memory_used_count += 1;
+ s->memory_used_size += m->import_entries_count * sizeof(*m->import_entries);
+ }
+ compute_value_size(m->module_ns, hp);
+ compute_value_size(m->func_obj, hp);
+ }
+ }
+
+ list_for_each(el, &rt->gc_obj_list) {
+ JSGCObjectHeader *gp = list_entry(el, JSGCObjectHeader, link);
+ JSObject *p;
+ JSShape *sh;
+ JSShapeProperty *prs;
+
+ /* XXX: could count the other GC object types too */
+ if (gp->gc_obj_type == JS_GC_OBJ_TYPE_FUNCTION_BYTECODE) {
+ compute_bytecode_size((JSFunctionBytecode *)gp, hp);
+ continue;
+ } else if (gp->gc_obj_type != JS_GC_OBJ_TYPE_JS_OBJECT) {
+ continue;
+ }
+ p = (JSObject *)gp;
+ sh = p->shape;
+ s->obj_count++;
+ if (p->prop) {
+ s->memory_used_count++;
+ s->prop_size += sh->prop_size * sizeof(*p->prop);
+ s->prop_count += sh->prop_count;
+ prs = get_shape_prop(sh);
+ for(i = 0; i < sh->prop_count; i++) {
+ JSProperty *pr = &p->prop[i];
+ if (prs->atom != JS_ATOM_NULL && !(prs->flags & JS_PROP_TMASK)) {
+ compute_value_size(pr->u.value, hp);
+ }
+ prs++;
+ }
+ }
+ /* the hashed shapes are counted separately */
+ if (!sh->is_hashed) {
+ int hash_size = sh->prop_hash_mask + 1;
+ s->shape_count++;
+ s->shape_size += get_shape_size(hash_size, sh->prop_size);
+ }
+
+ switch(p->class_id) {
+ case JS_CLASS_ARRAY: /* u.array | length */
+ case JS_CLASS_ARGUMENTS: /* u.array | length */
+ s->array_count++;
+ if (p->fast_array) {
+ s->fast_array_count++;
+ if (p->u.array.u.values) {
+ s->memory_used_count++;
+ s->memory_used_size += p->u.array.count *
+ sizeof(*p->u.array.u.values);
+ s->fast_array_elements += p->u.array.count;
+ for (i = 0; i < p->u.array.count; i++) {
+ compute_value_size(p->u.array.u.values[i], hp);
+ }
+ }
+ }
+ break;
+ case JS_CLASS_NUMBER: /* u.object_data */
+ case JS_CLASS_STRING: /* u.object_data */
+ case JS_CLASS_BOOLEAN: /* u.object_data */
+ case JS_CLASS_SYMBOL: /* u.object_data */
+ case JS_CLASS_DATE: /* u.object_data */
+ case JS_CLASS_BIG_INT: /* u.object_data */
+#ifdef CONFIG_BIGNUM
+ case JS_CLASS_BIG_FLOAT: /* u.object_data */
+ case JS_CLASS_BIG_DECIMAL: /* u.object_data */
+#endif
+ compute_value_size(p->u.object_data, hp);
+ break;
+ case JS_CLASS_C_FUNCTION: /* u.cfunc */
+ s->c_func_count++;
+ break;
+ case JS_CLASS_BYTECODE_FUNCTION: /* u.func */
+ {
+ JSFunctionBytecode *b = p->u.func.function_bytecode;
+ JSVarRef **var_refs = p->u.func.var_refs;
+ /* home_object: object will be accounted for in list scan */
+ if (var_refs) {
+ s->memory_used_count++;
+ s->js_func_size += b->closure_var_count * sizeof(*var_refs);
+ for (i = 0; i < b->closure_var_count; i++) {
+ if (var_refs[i]) {
+ double ref_count = var_refs[i]->header.ref_count;
+ s->memory_used_count += 1 / ref_count;
+ s->js_func_size += sizeof(*var_refs[i]) / ref_count;
+ /* handle non object closed values */
+ if (var_refs[i]->pvalue == &var_refs[i]->value) {
+ /* potential multiple count */
+ compute_value_size(var_refs[i]->value, hp);
+ }
+ }
+ }
+ }
+ }
+ break;
+ case JS_CLASS_BOUND_FUNCTION: /* u.bound_function */
+ {
+ JSBoundFunction *bf = p->u.bound_function;
+ /* func_obj and this_val are objects */
+ for (i = 0; i < bf->argc; i++) {
+ compute_value_size(bf->argv[i], hp);
+ }
+ s->memory_used_count += 1;
+ s->memory_used_size += sizeof(*bf) + bf->argc * sizeof(*bf->argv);
+ }
+ break;
+ case JS_CLASS_C_FUNCTION_DATA: /* u.c_function_data_record */
+ {
+ JSCFunctionDataRecord *fd = p->u.c_function_data_record;
+ if (fd) {
+ for (i = 0; i < fd->data_len; i++) {
+ compute_value_size(fd->data[i], hp);
+ }
+ s->memory_used_count += 1;
+ s->memory_used_size += sizeof(*fd) + fd->data_len * sizeof(*fd->data);
+ }
+ }
+ break;
+ case JS_CLASS_REGEXP: /* u.regexp */
+ compute_jsstring_size(p->u.regexp.pattern, hp);
+ compute_jsstring_size(p->u.regexp.bytecode, hp);
+ break;
+
+ case JS_CLASS_FOR_IN_ITERATOR: /* u.for_in_iterator */
+ {
+ JSForInIterator *it = p->u.for_in_iterator;
+ if (it) {
+ compute_value_size(it->obj, hp);
+ s->memory_used_count += 1;
+ s->memory_used_size += sizeof(*it);
+ }
+ }
+ break;
+ case JS_CLASS_ARRAY_BUFFER: /* u.array_buffer */
+ case JS_CLASS_SHARED_ARRAY_BUFFER: /* u.array_buffer */
+ {
+ JSArrayBuffer *abuf = p->u.array_buffer;
+ if (abuf) {
+ s->memory_used_count += 1;
+ s->memory_used_size += sizeof(*abuf);
+ if (abuf->data) {
+ s->memory_used_count += 1;
+ s->memory_used_size += abuf->byte_length;
+ }
+ }
+ }
+ break;
+ case JS_CLASS_GENERATOR: /* u.generator_data */
+ case JS_CLASS_UINT8C_ARRAY: /* u.typed_array / u.array */
+ case JS_CLASS_INT8_ARRAY: /* u.typed_array / u.array */
+ case JS_CLASS_UINT8_ARRAY: /* u.typed_array / u.array */
+ case JS_CLASS_INT16_ARRAY: /* u.typed_array / u.array */
+ case JS_CLASS_UINT16_ARRAY: /* u.typed_array / u.array */
+ case JS_CLASS_INT32_ARRAY: /* u.typed_array / u.array */
+ case JS_CLASS_UINT32_ARRAY: /* u.typed_array / u.array */
+ case JS_CLASS_BIG_INT64_ARRAY: /* u.typed_array / u.array */
+ case JS_CLASS_BIG_UINT64_ARRAY: /* u.typed_array / u.array */
+ case JS_CLASS_FLOAT32_ARRAY: /* u.typed_array / u.array */
+ case JS_CLASS_FLOAT64_ARRAY: /* u.typed_array / u.array */
+ case JS_CLASS_DATAVIEW: /* u.typed_array */
+#ifdef CONFIG_BIGNUM
+ case JS_CLASS_FLOAT_ENV: /* u.float_env */
+#endif
+ case JS_CLASS_MAP: /* u.map_state */
+ case JS_CLASS_SET: /* u.map_state */
+ case JS_CLASS_WEAKMAP: /* u.map_state */
+ case JS_CLASS_WEAKSET: /* u.map_state */
+ case JS_CLASS_MAP_ITERATOR: /* u.map_iterator_data */
+ case JS_CLASS_SET_ITERATOR: /* u.map_iterator_data */
+ case JS_CLASS_ARRAY_ITERATOR: /* u.array_iterator_data */
+ case JS_CLASS_STRING_ITERATOR: /* u.array_iterator_data */
+ case JS_CLASS_PROXY: /* u.proxy_data */
+ case JS_CLASS_PROMISE: /* u.promise_data */
+ case JS_CLASS_PROMISE_RESOLVE_FUNCTION: /* u.promise_function_data */
+ case JS_CLASS_PROMISE_REJECT_FUNCTION: /* u.promise_function_data */
+ case JS_CLASS_ASYNC_FUNCTION_RESOLVE: /* u.async_function_data */
+ case JS_CLASS_ASYNC_FUNCTION_REJECT: /* u.async_function_data */
+ case JS_CLASS_ASYNC_FROM_SYNC_ITERATOR: /* u.async_from_sync_iterator_data */
+ case JS_CLASS_ASYNC_GENERATOR: /* u.async_generator_data */
+ /* TODO */
+ default:
+ /* XXX: class definition should have an opaque block size */
+ if (p->u.opaque) {
+ s->memory_used_count += 1;
+ }
+ break;
+ }
+ }
+ s->obj_size += s->obj_count * sizeof(JSObject);
+
+ /* hashed shapes */
+ s->memory_used_count++; /* rt->shape_hash */
+ s->memory_used_size += sizeof(rt->shape_hash[0]) * rt->shape_hash_size;
+ for(i = 0; i < rt->shape_hash_size; i++) {
+ JSShape *sh;
+ for(sh = rt->shape_hash[i]; sh != NULL; sh = sh->shape_hash_next) {
+ int hash_size = sh->prop_hash_mask + 1;
+ s->shape_count++;
+ s->shape_size += get_shape_size(hash_size, sh->prop_size);
+ }
+ }
+
+ /* atoms */
+ s->memory_used_count += 2; /* rt->atom_array, rt->atom_hash */
+ s->atom_count = rt->atom_count;
+ s->atom_size = sizeof(rt->atom_array[0]) * rt->atom_size +
+ sizeof(rt->atom_hash[0]) * rt->atom_hash_size;
+ for(i = 0; i < rt->atom_size; i++) {
+ JSAtomStruct *p = rt->atom_array[i];
+ if (!atom_is_free(p)) {
+ s->atom_size += (sizeof(*p) + (p->len << p->is_wide_char) +
+ 1 - p->is_wide_char);
+ }
+ }
+ s->str_count = round(mem.str_count);
+ s->str_size = round(mem.str_size);
+ s->js_func_count = mem.js_func_count;
+ s->js_func_size = round(mem.js_func_size);
+ s->js_func_code_size = mem.js_func_code_size;
+ s->js_func_pc2line_count = mem.js_func_pc2line_count;
+ s->js_func_pc2line_size = mem.js_func_pc2line_size;
+ s->memory_used_count += round(mem.memory_used_count) +
+ s->atom_count + s->str_count +
+ s->obj_count + s->shape_count +
+ s->js_func_count + s->js_func_pc2line_count;
+ s->memory_used_size += s->atom_size + s->str_size +
+ s->obj_size + s->prop_size + s->shape_size +
+ s->js_func_size + s->js_func_code_size + s->js_func_pc2line_size;
+}
+
+void JS_DumpMemoryUsage(FILE *fp, const JSMemoryUsage *s, JSRuntime *rt)
+{
+ fprintf(fp, "QuickJS memory usage -- "
+#ifdef CONFIG_BIGNUM
+ "BigNum "
+#endif
+ CONFIG_VERSION " version, %d-bit, malloc limit: %"PRId64"\n\n",
+ (int)sizeof(void *) * 8, s->malloc_limit);
+#if 1
+ if (rt) {
+ static const struct {
+ const char *name;
+ size_t size;
+ } object_types[] = {
+ { "JSRuntime", sizeof(JSRuntime) },
+ { "JSContext", sizeof(JSContext) },
+ { "JSObject", sizeof(JSObject) },
+ { "JSString", sizeof(JSString) },
+ { "JSFunctionBytecode", sizeof(JSFunctionBytecode) },
+ };
+ int i, usage_size_ok = 0;
+ for(i = 0; i < countof(object_types); i++) {
+ unsigned int size = object_types[i].size;
+ void *p = js_malloc_rt(rt, size);
+ if (p) {
+ unsigned int size1 = js_malloc_usable_size_rt(rt, p);
+ if (size1 >= size) {
+ usage_size_ok = 1;
+ fprintf(fp, " %3u + %-2u %s\n",
+ size, size1 - size, object_types[i].name);
+ }
+ js_free_rt(rt, p);
+ }
+ }
+ if (!usage_size_ok) {
+ fprintf(fp, " malloc_usable_size unavailable\n");
+ }
+ {
+ int obj_classes[JS_CLASS_INIT_COUNT + 1] = { 0 };
+ int class_id;
+ struct list_head *el;
+ list_for_each(el, &rt->gc_obj_list) {
+ JSGCObjectHeader *gp = list_entry(el, JSGCObjectHeader, link);
+ JSObject *p;
+ if (gp->gc_obj_type == JS_GC_OBJ_TYPE_JS_OBJECT) {
+ p = (JSObject *)gp;
+ obj_classes[min_uint32(p->class_id, JS_CLASS_INIT_COUNT)]++;
+ }
+ }
+ fprintf(fp, "\n" "JSObject classes\n");
+ if (obj_classes[0])
+ fprintf(fp, " %5d %2.0d %s\n", obj_classes[0], 0, "none");
+ for (class_id = 1; class_id < JS_CLASS_INIT_COUNT; class_id++) {
+ if (obj_classes[class_id] && class_id < rt->class_count) {
+ char buf[ATOM_GET_STR_BUF_SIZE];
+ fprintf(fp, " %5d %2.0d %s\n", obj_classes[class_id], class_id,
+ JS_AtomGetStrRT(rt, buf, sizeof(buf), rt->class_array[class_id].class_name));
+ }
+ }
+ if (obj_classes[JS_CLASS_INIT_COUNT])
+ fprintf(fp, " %5d %2.0d %s\n", obj_classes[JS_CLASS_INIT_COUNT], 0, "other");
+ }
+ fprintf(fp, "\n");
+ }
+#endif
+ fprintf(fp, "%-20s %8s %8s\n", "NAME", "COUNT", "SIZE");
+
+ if (s->malloc_count) {
+ fprintf(fp, "%-20s %8"PRId64" %8"PRId64" (%0.1f per block)\n",
+ "memory allocated", s->malloc_count, s->malloc_size,
+ (double)s->malloc_size / s->malloc_count);
+ fprintf(fp, "%-20s %8"PRId64" %8"PRId64" (%d overhead, %0.1f average slack)\n",
+ "memory used", s->memory_used_count, s->memory_used_size,
+ MALLOC_OVERHEAD, ((double)(s->malloc_size - s->memory_used_size) /
+ s->memory_used_count));
+ }
+ if (s->atom_count) {
+ fprintf(fp, "%-20s %8"PRId64" %8"PRId64" (%0.1f per atom)\n",
+ "atoms", s->atom_count, s->atom_size,
+ (double)s->atom_size / s->atom_count);
+ }
+ if (s->str_count) {
+ fprintf(fp, "%-20s %8"PRId64" %8"PRId64" (%0.1f per string)\n",
+ "strings", s->str_count, s->str_size,
+ (double)s->str_size / s->str_count);
+ }
+ if (s->obj_count) {
+ fprintf(fp, "%-20s %8"PRId64" %8"PRId64" (%0.1f per object)\n",
+ "objects", s->obj_count, s->obj_size,
+ (double)s->obj_size / s->obj_count);
+ fprintf(fp, "%-20s %8"PRId64" %8"PRId64" (%0.1f per object)\n",
+ " properties", s->prop_count, s->prop_size,
+ (double)s->prop_count / s->obj_count);
+ fprintf(fp, "%-20s %8"PRId64" %8"PRId64" (%0.1f per shape)\n",
+ " shapes", s->shape_count, s->shape_size,
+ (double)s->shape_size / s->shape_count);
+ }
+ if (s->js_func_count) {
+ fprintf(fp, "%-20s %8"PRId64" %8"PRId64"\n",
+ "bytecode functions", s->js_func_count, s->js_func_size);
+ fprintf(fp, "%-20s %8"PRId64" %8"PRId64" (%0.1f per function)\n",
+ " bytecode", s->js_func_count, s->js_func_code_size,
+ (double)s->js_func_code_size / s->js_func_count);
+ if (s->js_func_pc2line_count) {
+ fprintf(fp, "%-20s %8"PRId64" %8"PRId64" (%0.1f per function)\n",
+ " pc2line", s->js_func_pc2line_count,
+ s->js_func_pc2line_size,
+ (double)s->js_func_pc2line_size / s->js_func_pc2line_count);
+ }
+ }
+ if (s->c_func_count) {
+ fprintf(fp, "%-20s %8"PRId64"\n", "C functions", s->c_func_count);
+ }
+ if (s->array_count) {
+ fprintf(fp, "%-20s %8"PRId64"\n", "arrays", s->array_count);
+ if (s->fast_array_count) {
+ fprintf(fp, "%-20s %8"PRId64"\n", " fast arrays", s->fast_array_count);
+ fprintf(fp, "%-20s %8"PRId64" %8"PRId64" (%0.1f per fast array)\n",
+ " elements", s->fast_array_elements,
+ s->fast_array_elements * (int)sizeof(JSValue),
+ (double)s->fast_array_elements / s->fast_array_count);
+ }
+ }
+ if (s->binary_object_count) {
+ fprintf(fp, "%-20s %8"PRId64" %8"PRId64"\n",
+ "binary objects", s->binary_object_count, s->binary_object_size);
+ }
+}
+
+JSValue JS_GetGlobalObject(JSContext *ctx)
+{
+ return JS_DupValue(ctx, ctx->global_obj);
+}
+
+/* WARNING: obj is freed */
+JSValue JS_Throw(JSContext *ctx, JSValue obj)
+{
+ JSRuntime *rt = ctx->rt;
+ JS_FreeValue(ctx, rt->current_exception);
+ rt->current_exception = obj;
+ return JS_EXCEPTION;
+}
+
+/* return the pending exception (cannot be called twice). */
+JSValue JS_GetException(JSContext *ctx)
+{
+ JSValue val;
+ JSRuntime *rt = ctx->rt;
+ val = rt->current_exception;
+ rt->current_exception = JS_NULL;
+ return val;
+}
+
+static void dbuf_put_leb128(DynBuf *s, uint32_t v)
+{
+ uint32_t a;
+ for(;;) {
+ a = v & 0x7f;
+ v >>= 7;
+ if (v != 0) {
+ dbuf_putc(s, a | 0x80);
+ } else {
+ dbuf_putc(s, a);
+ break;
+ }
+ }
+}
+
+static void dbuf_put_sleb128(DynBuf *s, int32_t v1)
+{
+ uint32_t v = v1;
+ dbuf_put_leb128(s, (2 * v) ^ -(v >> 31));
+}
+
+static int get_leb128(uint32_t *pval, const uint8_t *buf,
+ const uint8_t *buf_end)
+{
+ const uint8_t *ptr = buf;
+ uint32_t v, a, i;
+ v = 0;
+ for(i = 0; i < 5; i++) {
+ if (unlikely(ptr >= buf_end))
+ break;
+ a = *ptr++;
+ v |= (a & 0x7f) << (i * 7);
+ if (!(a & 0x80)) {
+ *pval = v;
+ return ptr - buf;
+ }
+ }
+ *pval = 0;
+ return -1;
+}
+
+static int get_sleb128(int32_t *pval, const uint8_t *buf,
+ const uint8_t *buf_end)
+{
+ int ret;
+ uint32_t val;
+ ret = get_leb128(&val, buf, buf_end);
+ if (ret < 0) {
+ *pval = 0;
+ return -1;
+ }
+ *pval = (val >> 1) ^ -(val & 1);
+ return ret;
+}
+
+static int find_line_num(JSContext *ctx, JSFunctionBytecode *b,
+ uint32_t pc_value)
+{
+ const uint8_t *p_end, *p;
+ int new_line_num, line_num, pc, v, ret;
+ unsigned int op;
+
+ if (!b->has_debug || !b->debug.pc2line_buf) {
+ /* function was stripped */
+ return -1;
+ }
+
+ p = b->debug.pc2line_buf;
+ p_end = p + b->debug.pc2line_len;
+ pc = 0;
+ line_num = b->debug.line_num;
+ while (p < p_end) {
+ op = *p++;
+ if (op == 0) {
+ uint32_t val;
+ ret = get_leb128(&val, p, p_end);
+ if (ret < 0)
+ goto fail;
+ pc += val;
+ p += ret;
+ ret = get_sleb128(&v, p, p_end);
+ if (ret < 0) {
+ fail:
+ /* should never happen */
+ return b->debug.line_num;
+ }
+ p += ret;
+ new_line_num = line_num + v;
+ } else {
+ op -= PC2LINE_OP_FIRST;
+ pc += (op / PC2LINE_RANGE);
+ new_line_num = line_num + (op % PC2LINE_RANGE) + PC2LINE_BASE;
+ }
+ if (pc_value < pc)
+ return line_num;
+ line_num = new_line_num;
+ }
+ return line_num;
+}
+
+/* in order to avoid executing arbitrary code during the stack trace
+ generation, we only look at simple 'name' properties containing a
+ string. */
+static const char *get_func_name(JSContext *ctx, JSValueConst func)
+{
+ JSProperty *pr;
+ JSShapeProperty *prs;
+ JSValueConst val;
+
+ if (JS_VALUE_GET_TAG(func) != JS_TAG_OBJECT)
+ return NULL;
+ prs = find_own_property(&pr, JS_VALUE_GET_OBJ(func), JS_ATOM_name);
+ if (!prs)
+ return NULL;
+ if ((prs->flags & JS_PROP_TMASK) != JS_PROP_NORMAL)
+ return NULL;
+ val = pr->u.value;
+ if (JS_VALUE_GET_TAG(val) != JS_TAG_STRING)
+ return NULL;
+ return JS_ToCString(ctx, val);
+}
+
+#define JS_BACKTRACE_FLAG_SKIP_FIRST_LEVEL (1 << 0)
+/* only taken into account if filename is provided */
+#define JS_BACKTRACE_FLAG_SINGLE_LEVEL (1 << 1)
+
+/* if filename != NULL, an additional level is added with the filename
+ and line number information (used for parse error). */
+static void build_backtrace(JSContext *ctx, JSValueConst error_obj,
+ const char *filename, int line_num,
+ int backtrace_flags)
+{
+ JSStackFrame *sf;
+ JSValue str;
+ DynBuf dbuf;
+ const char *func_name_str;
+ const char *str1;
+ JSObject *p;
+ BOOL backtrace_barrier;
+
+ js_dbuf_init(ctx, &dbuf);
+ if (filename) {
+ dbuf_printf(&dbuf, " at %s", filename);
+ if (line_num != -1)
+ dbuf_printf(&dbuf, ":%d", line_num);
+ dbuf_putc(&dbuf, '\n');
+ str = JS_NewString(ctx, filename);
+ JS_DefinePropertyValue(ctx, error_obj, JS_ATOM_fileName, str,
+ JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE);
+ JS_DefinePropertyValue(ctx, error_obj, JS_ATOM_lineNumber, JS_NewInt32(ctx, line_num),
+ JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE);
+ if (backtrace_flags & JS_BACKTRACE_FLAG_SINGLE_LEVEL)
+ goto done;
+ }
+ for(sf = ctx->rt->current_stack_frame; sf != NULL; sf = sf->prev_frame) {
+ if (backtrace_flags & JS_BACKTRACE_FLAG_SKIP_FIRST_LEVEL) {
+ backtrace_flags &= ~JS_BACKTRACE_FLAG_SKIP_FIRST_LEVEL;
+ continue;
+ }
+ func_name_str = get_func_name(ctx, sf->cur_func);
+ if (!func_name_str || func_name_str[0] == '\0')
+ str1 = "<anonymous>";
+ else
+ str1 = func_name_str;
+ dbuf_printf(&dbuf, " at %s", str1);
+ JS_FreeCString(ctx, func_name_str);
+
+ p = JS_VALUE_GET_OBJ(sf->cur_func);
+ backtrace_barrier = FALSE;
+ if (js_class_has_bytecode(p->class_id)) {
+ JSFunctionBytecode *b;
+ const char *atom_str;
+ int line_num1;
+
+ b = p->u.func.function_bytecode;
+ backtrace_barrier = b->backtrace_barrier;
+ if (b->has_debug) {
+ line_num1 = find_line_num(ctx, b,
+ sf->cur_pc - b->byte_code_buf - 1);
+ atom_str = JS_AtomToCString(ctx, b->debug.filename);
+ dbuf_printf(&dbuf, " (%s",
+ atom_str ? atom_str : "<null>");
+ JS_FreeCString(ctx, atom_str);
+ if (line_num1 != -1)
+ dbuf_printf(&dbuf, ":%d", line_num1);
+ dbuf_putc(&dbuf, ')');
+ }
+ } else {
+ dbuf_printf(&dbuf, " (native)");
+ }
+ dbuf_putc(&dbuf, '\n');
+ /* stop backtrace if JS_EVAL_FLAG_BACKTRACE_BARRIER was used */
+ if (backtrace_barrier)
+ break;
+ }
+ done:
+ dbuf_putc(&dbuf, '\0');
+ if (dbuf_error(&dbuf))
+ str = JS_NULL;
+ else
+ str = JS_NewString(ctx, (char *)dbuf.buf);
+ dbuf_free(&dbuf);
+ JS_DefinePropertyValue(ctx, error_obj, JS_ATOM_stack, str,
+ JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE);
+}
+
+/* Note: it is important that no exception is returned by this function */
+static BOOL is_backtrace_needed(JSContext *ctx, JSValueConst obj)
+{
+ JSObject *p;
+ if (JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT)
+ return FALSE;
+ p = JS_VALUE_GET_OBJ(obj);
+ if (p->class_id != JS_CLASS_ERROR)
+ return FALSE;
+ if (find_own_property1(p, JS_ATOM_stack))
+ return FALSE;
+ return TRUE;
+}
+
+JSValue JS_NewError(JSContext *ctx)
+{
+ return JS_NewObjectClass(ctx, JS_CLASS_ERROR);
+}
+
+static JSValue JS_ThrowError2(JSContext *ctx, JSErrorEnum error_num,
+ const char *fmt, va_list ap, BOOL add_backtrace)
+{
+ char buf[256];
+ JSValue obj, ret;
+
+ vsnprintf(buf, sizeof(buf), fmt, ap);
+ obj = JS_NewObjectProtoClass(ctx, ctx->native_error_proto[error_num],
+ JS_CLASS_ERROR);
+ if (unlikely(JS_IsException(obj))) {
+ /* out of memory: throw JS_NULL to avoid recursing */
+ obj = JS_NULL;
+ } else {
+ JS_DefinePropertyValue(ctx, obj, JS_ATOM_message,
+ JS_NewString(ctx, buf),
+ JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE);
+ }
+ if (add_backtrace) {
+ build_backtrace(ctx, obj, NULL, 0, 0);
+ }
+ ret = JS_Throw(ctx, obj);
+ return ret;
+}
+
+static JSValue JS_ThrowError(JSContext *ctx, JSErrorEnum error_num,
+ const char *fmt, va_list ap)
+{
+ JSRuntime *rt = ctx->rt;
+ JSStackFrame *sf;
+ BOOL add_backtrace;
+
+ /* the backtrace is added later if called from a bytecode function */
+ sf = rt->current_stack_frame;
+ add_backtrace = !rt->in_out_of_memory &&
+ (!sf || (JS_GetFunctionBytecode(sf->cur_func) == NULL));
+ return JS_ThrowError2(ctx, error_num, fmt, ap, add_backtrace);
+}
+
+JSValue __attribute__((format(printf, 2, 3))) JS_ThrowSyntaxError(JSContext *ctx, const char *fmt, ...)
+{
+ JSValue val;
+ va_list ap;
+
+ va_start(ap, fmt);
+ val = JS_ThrowError(ctx, JS_SYNTAX_ERROR, fmt, ap);
+ va_end(ap);
+ return val;
+}
+
+JSValue __attribute__((format(printf, 2, 3))) JS_ThrowTypeError(JSContext *ctx, const char *fmt, ...)
+{
+ JSValue val;
+ va_list ap;
+
+ va_start(ap, fmt);
+ val = JS_ThrowError(ctx, JS_TYPE_ERROR, fmt, ap);
+ va_end(ap);
+ return val;
+}
+
+static int __attribute__((format(printf, 3, 4))) JS_ThrowTypeErrorOrFalse(JSContext *ctx, int flags, const char *fmt, ...)
+{
+ va_list ap;
+
+ if ((flags & JS_PROP_THROW) ||
+ ((flags & JS_PROP_THROW_STRICT) && is_strict_mode(ctx))) {
+ va_start(ap, fmt);
+ JS_ThrowError(ctx, JS_TYPE_ERROR, fmt, ap);
+ va_end(ap);
+ return -1;
+ } else {
+ return FALSE;
+ }
+}
+
+/* never use it directly */
+static JSValue __attribute__((format(printf, 3, 4))) __JS_ThrowTypeErrorAtom(JSContext *ctx, JSAtom atom, const char *fmt, ...)
+{
+ char buf[ATOM_GET_STR_BUF_SIZE];
+ return JS_ThrowTypeError(ctx, fmt,
+ JS_AtomGetStr(ctx, buf, sizeof(buf), atom));
+}
+
+/* never use it directly */
+static JSValue __attribute__((format(printf, 3, 4))) __JS_ThrowSyntaxErrorAtom(JSContext *ctx, JSAtom atom, const char *fmt, ...)
+{
+ char buf[ATOM_GET_STR_BUF_SIZE];
+ return JS_ThrowSyntaxError(ctx, fmt,
+ JS_AtomGetStr(ctx, buf, sizeof(buf), atom));
+}
+
+/* %s is replaced by 'atom'. The macro is used so that gcc can check
+ the format string. */
+#define JS_ThrowTypeErrorAtom(ctx, fmt, atom) __JS_ThrowTypeErrorAtom(ctx, atom, fmt, "")
+#define JS_ThrowSyntaxErrorAtom(ctx, fmt, atom) __JS_ThrowSyntaxErrorAtom(ctx, atom, fmt, "")
+
+static int JS_ThrowTypeErrorReadOnly(JSContext *ctx, int flags, JSAtom atom)
+{
+ if ((flags & JS_PROP_THROW) ||
+ ((flags & JS_PROP_THROW_STRICT) && is_strict_mode(ctx))) {
+ JS_ThrowTypeErrorAtom(ctx, "'%s' is read-only", atom);
+ return -1;
+ } else {
+ return FALSE;
+ }
+}
+
+JSValue __attribute__((format(printf, 2, 3))) JS_ThrowReferenceError(JSContext *ctx, const char *fmt, ...)
+{
+ JSValue val;
+ va_list ap;
+
+ va_start(ap, fmt);
+ val = JS_ThrowError(ctx, JS_REFERENCE_ERROR, fmt, ap);
+ va_end(ap);
+ return val;
+}
+
+JSValue __attribute__((format(printf, 2, 3))) JS_ThrowRangeError(JSContext *ctx, const char *fmt, ...)
+{
+ JSValue val;
+ va_list ap;
+
+ va_start(ap, fmt);
+ val = JS_ThrowError(ctx, JS_RANGE_ERROR, fmt, ap);
+ va_end(ap);
+ return val;
+}
+
+JSValue __attribute__((format(printf, 2, 3))) JS_ThrowInternalError(JSContext *ctx, const char *fmt, ...)
+{
+ JSValue val;
+ va_list ap;
+
+ va_start(ap, fmt);
+ val = JS_ThrowError(ctx, JS_INTERNAL_ERROR, fmt, ap);
+ va_end(ap);
+ return val;
+}
+
+JSValue JS_ThrowOutOfMemory(JSContext *ctx)
+{
+ JSRuntime *rt = ctx->rt;
+ if (!rt->in_out_of_memory) {
+ rt->in_out_of_memory = TRUE;
+ JS_ThrowInternalError(ctx, "out of memory");
+ rt->in_out_of_memory = FALSE;
+ }
+ return JS_EXCEPTION;
+}
+
+static JSValue JS_ThrowStackOverflow(JSContext *ctx)
+{
+ return JS_ThrowInternalError(ctx, "stack overflow");
+}
+
+static JSValue JS_ThrowTypeErrorNotAnObject(JSContext *ctx)
+{
+ return JS_ThrowTypeError(ctx, "not an object");
+}
+
+static JSValue JS_ThrowTypeErrorNotASymbol(JSContext *ctx)
+{
+ return JS_ThrowTypeError(ctx, "not a symbol");
+}
+
+static JSValue JS_ThrowReferenceErrorNotDefined(JSContext *ctx, JSAtom name)
+{
+ char buf[ATOM_GET_STR_BUF_SIZE];
+ return JS_ThrowReferenceError(ctx, "'%s' is not defined",
+ JS_AtomGetStr(ctx, buf, sizeof(buf), name));
+}
+
+static JSValue JS_ThrowReferenceErrorUninitialized(JSContext *ctx, JSAtom name)
+{
+ char buf[ATOM_GET_STR_BUF_SIZE];
+ return JS_ThrowReferenceError(ctx, "%s is not initialized",
+ name == JS_ATOM_NULL ? "lexical variable" :
+ JS_AtomGetStr(ctx, buf, sizeof(buf), name));
+}
+
+static JSValue JS_ThrowReferenceErrorUninitialized2(JSContext *ctx,
+ JSFunctionBytecode *b,
+ int idx, BOOL is_ref)
+{
+ JSAtom atom = JS_ATOM_NULL;
+ if (is_ref) {
+ atom = b->closure_var[idx].var_name;
+ } else {
+ /* not present if the function is stripped and contains no eval() */
+ if (b->vardefs)
+ atom = b->vardefs[b->arg_count + idx].var_name;
+ }
+ return JS_ThrowReferenceErrorUninitialized(ctx, atom);
+}
+
+static JSValue JS_ThrowTypeErrorInvalidClass(JSContext *ctx, int class_id)
+{
+ JSRuntime *rt = ctx->rt;
+ JSAtom name;
+ name = rt->class_array[class_id].class_name;
+ return JS_ThrowTypeErrorAtom(ctx, "%s object expected", name);
+}
+
+static no_inline __exception int __js_poll_interrupts(JSContext *ctx)
+{
+ JSRuntime *rt = ctx->rt;
+ ctx->interrupt_counter = JS_INTERRUPT_COUNTER_INIT;
+ if (rt->interrupt_handler) {
+ if (rt->interrupt_handler(rt, rt->interrupt_opaque)) {
+ /* XXX: should set a specific flag to avoid catching */
+ JS_ThrowInternalError(ctx, "interrupted");
+ JS_SetUncatchableError(ctx, ctx->rt->current_exception, TRUE);
+ return -1;
+ }
+ }
+ return 0;
+}
+
+static inline __exception int js_poll_interrupts(JSContext *ctx)
+{
+ if (unlikely(--ctx->interrupt_counter <= 0)) {
+ return __js_poll_interrupts(ctx);
+ } else {
+ return 0;
+ }
+}
+
+/* return -1 (exception) or TRUE/FALSE */
+static int JS_SetPrototypeInternal(JSContext *ctx, JSValueConst obj,
+ JSValueConst proto_val,
+ BOOL throw_flag)
+{
+ JSObject *proto, *p, *p1;
+ JSShape *sh;
+
+ if (throw_flag) {
+ if (JS_VALUE_GET_TAG(obj) == JS_TAG_NULL ||
+ JS_VALUE_GET_TAG(obj) == JS_TAG_UNDEFINED)
+ goto not_obj;
+ } else {
+ if (JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT)
+ goto not_obj;
+ }
+ p = JS_VALUE_GET_OBJ(obj);
+ if (JS_VALUE_GET_TAG(proto_val) != JS_TAG_OBJECT) {
+ if (JS_VALUE_GET_TAG(proto_val) != JS_TAG_NULL) {
+ not_obj:
+ JS_ThrowTypeErrorNotAnObject(ctx);
+ return -1;
+ }
+ proto = NULL;
+ } else {
+ proto = JS_VALUE_GET_OBJ(proto_val);
+ }
+
+ if (throw_flag && JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT)
+ return TRUE;
+
+ if (unlikely(p->class_id == JS_CLASS_PROXY))
+ return js_proxy_setPrototypeOf(ctx, obj, proto_val, throw_flag);
+ sh = p->shape;
+ if (sh->proto == proto)
+ return TRUE;
+ if (!p->extensible) {
+ if (throw_flag) {
+ JS_ThrowTypeError(ctx, "object is not extensible");
+ return -1;
+ } else {
+ return FALSE;
+ }
+ }
+ if (proto) {
+ /* check if there is a cycle */
+ p1 = proto;
+ do {
+ if (p1 == p) {
+ if (throw_flag) {
+ JS_ThrowTypeError(ctx, "circular prototype chain");
+ return -1;
+ } else {
+ return FALSE;
+ }
+ }
+ /* Note: for Proxy objects, proto is NULL */
+ p1 = p1->shape->proto;
+ } while (p1 != NULL);
+ JS_DupValue(ctx, proto_val);
+ }
+
+ if (js_shape_prepare_update(ctx, p, NULL))
+ return -1;
+ sh = p->shape;
+ if (sh->proto)
+ JS_FreeValue(ctx, JS_MKPTR(JS_TAG_OBJECT, sh->proto));
+ sh->proto = proto;
+ return TRUE;
+}
+
+/* return -1 (exception) or TRUE/FALSE */
+int JS_SetPrototype(JSContext *ctx, JSValueConst obj, JSValueConst proto_val)
+{
+ return JS_SetPrototypeInternal(ctx, obj, proto_val, TRUE);
+}
+
+/* Only works for primitive types, otherwise return JS_NULL. */
+static JSValueConst JS_GetPrototypePrimitive(JSContext *ctx, JSValueConst val)
+{
+ switch(JS_VALUE_GET_NORM_TAG(val)) {
+ case JS_TAG_BIG_INT:
+ val = ctx->class_proto[JS_CLASS_BIG_INT];
+ break;
+#ifdef CONFIG_BIGNUM
+ case JS_TAG_BIG_FLOAT:
+ val = ctx->class_proto[JS_CLASS_BIG_FLOAT];
+ break;
+ case JS_TAG_BIG_DECIMAL:
+ val = ctx->class_proto[JS_CLASS_BIG_DECIMAL];
+ break;
+#endif
+ case JS_TAG_INT:
+ case JS_TAG_FLOAT64:
+ val = ctx->class_proto[JS_CLASS_NUMBER];
+ break;
+ case JS_TAG_BOOL:
+ val = ctx->class_proto[JS_CLASS_BOOLEAN];
+ break;
+ case JS_TAG_STRING:
+ val = ctx->class_proto[JS_CLASS_STRING];
+ break;
+ case JS_TAG_SYMBOL:
+ val = ctx->class_proto[JS_CLASS_SYMBOL];
+ break;
+ case JS_TAG_OBJECT:
+ case JS_TAG_NULL:
+ case JS_TAG_UNDEFINED:
+ default:
+ val = JS_NULL;
+ break;
+ }
+ return val;
+}
+
+/* Return an Object, JS_NULL or JS_EXCEPTION in case of Proxy object. */
+JSValue JS_GetPrototype(JSContext *ctx, JSValueConst obj)
+{
+ JSValue val;
+ if (JS_VALUE_GET_TAG(obj) == JS_TAG_OBJECT) {
+ JSObject *p;
+ p = JS_VALUE_GET_OBJ(obj);
+ if (unlikely(p->class_id == JS_CLASS_PROXY)) {
+ val = js_proxy_getPrototypeOf(ctx, obj);
+ } else {
+ p = p->shape->proto;
+ if (!p)
+ val = JS_NULL;
+ else
+ val = JS_DupValue(ctx, JS_MKPTR(JS_TAG_OBJECT, p));
+ }
+ } else {
+ val = JS_DupValue(ctx, JS_GetPrototypePrimitive(ctx, obj));
+ }
+ return val;
+}
+
+static JSValue JS_GetPrototypeFree(JSContext *ctx, JSValue obj)
+{
+ JSValue obj1;
+ obj1 = JS_GetPrototype(ctx, obj);
+ JS_FreeValue(ctx, obj);
+ return obj1;
+}
+
+/* return TRUE, FALSE or (-1) in case of exception */
+static int JS_OrdinaryIsInstanceOf(JSContext *ctx, JSValueConst val,
+ JSValueConst obj)
+{
+ JSValue obj_proto;
+ JSObject *proto;
+ const JSObject *p, *proto1;
+ BOOL ret;
+
+ if (!JS_IsFunction(ctx, obj))
+ return FALSE;
+ p = JS_VALUE_GET_OBJ(obj);
+ if (p->class_id == JS_CLASS_BOUND_FUNCTION) {
+ JSBoundFunction *s = p->u.bound_function;
+ return JS_IsInstanceOf(ctx, val, s->func_obj);
+ }
+
+ /* Only explicitly boxed values are instances of constructors */
+ if (JS_VALUE_GET_TAG(val) != JS_TAG_OBJECT)
+ return FALSE;
+ obj_proto = JS_GetProperty(ctx, obj, JS_ATOM_prototype);
+ if (JS_VALUE_GET_TAG(obj_proto) != JS_TAG_OBJECT) {
+ if (!JS_IsException(obj_proto))
+ JS_ThrowTypeError(ctx, "operand 'prototype' property is not an object");
+ ret = -1;
+ goto done;
+ }
+ proto = JS_VALUE_GET_OBJ(obj_proto);
+ p = JS_VALUE_GET_OBJ(val);
+ for(;;) {
+ proto1 = p->shape->proto;
+ if (!proto1) {
+ /* slow case if proxy in the prototype chain */
+ if (unlikely(p->class_id == JS_CLASS_PROXY)) {
+ JSValue obj1;
+ obj1 = JS_DupValue(ctx, JS_MKPTR(JS_TAG_OBJECT, (JSObject *)p));
+ for(;;) {
+ obj1 = JS_GetPrototypeFree(ctx, obj1);
+ if (JS_IsException(obj1)) {
+ ret = -1;
+ break;
+ }
+ if (JS_IsNull(obj1)) {
+ ret = FALSE;
+ break;
+ }
+ if (proto == JS_VALUE_GET_OBJ(obj1)) {
+ JS_FreeValue(ctx, obj1);
+ ret = TRUE;
+ break;
+ }
+ /* must check for timeout to avoid infinite loop */
+ if (js_poll_interrupts(ctx)) {
+ JS_FreeValue(ctx, obj1);
+ ret = -1;
+ break;
+ }
+ }
+ } else {
+ ret = FALSE;
+ }
+ break;
+ }
+ p = proto1;
+ if (proto == p) {
+ ret = TRUE;
+ break;
+ }
+ }
+done:
+ JS_FreeValue(ctx, obj_proto);
+ return ret;
+}
+
+/* return TRUE, FALSE or (-1) in case of exception */
+int JS_IsInstanceOf(JSContext *ctx, JSValueConst val, JSValueConst obj)
+{
+ JSValue method;
+
+ if (!JS_IsObject(obj))
+ goto fail;
+ method = JS_GetProperty(ctx, obj, JS_ATOM_Symbol_hasInstance);
+ if (JS_IsException(method))
+ return -1;
+ if (!JS_IsNull(method) && !JS_IsUndefined(method)) {
+ JSValue ret;
+ ret = JS_CallFree(ctx, method, obj, 1, &val);
+ return JS_ToBoolFree(ctx, ret);
+ }
+
+ /* legacy case */
+ if (!JS_IsFunction(ctx, obj)) {
+ fail:
+ JS_ThrowTypeError(ctx, "invalid 'instanceof' right operand");
+ return -1;
+ }
+ return JS_OrdinaryIsInstanceOf(ctx, val, obj);
+}
+
+/* return the value associated to the autoinit property or an exception */
+typedef JSValue JSAutoInitFunc(JSContext *ctx, JSObject *p, JSAtom atom, void *opaque);
+
+static JSAutoInitFunc *js_autoinit_func_table[] = {
+ js_instantiate_prototype, /* JS_AUTOINIT_ID_PROTOTYPE */
+ js_module_ns_autoinit, /* JS_AUTOINIT_ID_MODULE_NS */
+ JS_InstantiateFunctionListItem2, /* JS_AUTOINIT_ID_PROP */
+};
+
+/* warning: 'prs' is reallocated after it */
+static int JS_AutoInitProperty(JSContext *ctx, JSObject *p, JSAtom prop,
+ JSProperty *pr, JSShapeProperty *prs)
+{
+ JSValue val;
+ JSContext *realm;
+ JSAutoInitFunc *func;
+
+ if (js_shape_prepare_update(ctx, p, &prs))
+ return -1;
+
+ realm = js_autoinit_get_realm(pr);
+ func = js_autoinit_func_table[js_autoinit_get_id(pr)];
+ /* 'func' shall not modify the object properties 'pr' */
+ val = func(realm, p, prop, pr->u.init.opaque);
+ js_autoinit_free(ctx->rt, pr);
+ prs->flags &= ~JS_PROP_TMASK;
+ pr->u.value = JS_UNDEFINED;
+ if (JS_IsException(val))
+ return -1;
+ pr->u.value = val;
+ return 0;
+}
+
+JSValue JS_GetPropertyInternal(JSContext *ctx, JSValueConst obj,
+ JSAtom prop, JSValueConst this_obj,
+ BOOL throw_ref_error)
+{
+ JSObject *p;
+ JSProperty *pr;
+ JSShapeProperty *prs;
+ uint32_t tag;
+
+ tag = JS_VALUE_GET_TAG(obj);
+ if (unlikely(tag != JS_TAG_OBJECT)) {
+ switch(tag) {
+ case JS_TAG_NULL:
+ return JS_ThrowTypeErrorAtom(ctx, "cannot read property '%s' of null", prop);
+ case JS_TAG_UNDEFINED:
+ return JS_ThrowTypeErrorAtom(ctx, "cannot read property '%s' of undefined", prop);
+ case JS_TAG_EXCEPTION:
+ return JS_EXCEPTION;
+ case JS_TAG_STRING:
+ {
+ JSString *p1 = JS_VALUE_GET_STRING(obj);
+ if (__JS_AtomIsTaggedInt(prop)) {
+ uint32_t idx, ch;
+ idx = __JS_AtomToUInt32(prop);
+ if (idx < p1->len) {
+ if (p1->is_wide_char)
+ ch = p1->u.str16[idx];
+ else
+ ch = p1->u.str8[idx];
+ return js_new_string_char(ctx, ch);
+ }
+ } else if (prop == JS_ATOM_length) {
+ return JS_NewInt32(ctx, p1->len);
+ }
+ }
+ break;
+ default:
+ break;
+ }
+ /* cannot raise an exception */
+ p = JS_VALUE_GET_OBJ(JS_GetPrototypePrimitive(ctx, obj));
+ if (!p)
+ return JS_UNDEFINED;
+ } else {
+ p = JS_VALUE_GET_OBJ(obj);
+ }
+
+ for(;;) {
+ prs = find_own_property(&pr, p, prop);
+ if (prs) {
+ /* found */
+ if (unlikely(prs->flags & JS_PROP_TMASK)) {
+ if ((prs->flags & JS_PROP_TMASK) == JS_PROP_GETSET) {
+ if (unlikely(!pr->u.getset.getter)) {
+ return JS_UNDEFINED;
+ } else {
+ JSValue func = JS_MKPTR(JS_TAG_OBJECT, pr->u.getset.getter);
+ /* Note: the field could be removed in the getter */
+ func = JS_DupValue(ctx, func);
+ return JS_CallFree(ctx, func, this_obj, 0, NULL);
+ }
+ } else if ((prs->flags & JS_PROP_TMASK) == JS_PROP_VARREF) {
+ JSValue val = *pr->u.var_ref->pvalue;
+ if (unlikely(JS_IsUninitialized(val)))
+ return JS_ThrowReferenceErrorUninitialized(ctx, prs->atom);
+ return JS_DupValue(ctx, val);
+ } else if ((prs->flags & JS_PROP_TMASK) == JS_PROP_AUTOINIT) {
+ /* Instantiate property and retry */
+ if (JS_AutoInitProperty(ctx, p, prop, pr, prs))
+ return JS_EXCEPTION;
+ continue;
+ }
+ } else {
+ return JS_DupValue(ctx, pr->u.value);
+ }
+ }
+ if (unlikely(p->is_exotic)) {
+ /* exotic behaviors */
+ if (p->fast_array) {
+ if (__JS_AtomIsTaggedInt(prop)) {
+ uint32_t idx = __JS_AtomToUInt32(prop);
+ if (idx < p->u.array.count) {
+ /* we avoid duplicating the code */
+ return JS_GetPropertyUint32(ctx, JS_MKPTR(JS_TAG_OBJECT, p), idx);
+ } else if (p->class_id >= JS_CLASS_UINT8C_ARRAY &&
+ p->class_id <= JS_CLASS_FLOAT64_ARRAY) {
+ return JS_UNDEFINED;
+ }
+ } else if (p->class_id >= JS_CLASS_UINT8C_ARRAY &&
+ p->class_id <= JS_CLASS_FLOAT64_ARRAY) {
+ int ret;
+ ret = JS_AtomIsNumericIndex(ctx, prop);
+ if (ret != 0) {
+ if (ret < 0)
+ return JS_EXCEPTION;
+ return JS_UNDEFINED;
+ }
+ }
+ } else {
+ const JSClassExoticMethods *em = ctx->rt->class_array[p->class_id].exotic;
+ if (em) {
+ if (em->get_property) {
+ JSValue obj1, retval;
+ /* XXX: should pass throw_ref_error */
+ /* Note: if 'p' is a prototype, it can be
+ freed in the called function */
+ obj1 = JS_DupValue(ctx, JS_MKPTR(JS_TAG_OBJECT, p));
+ retval = em->get_property(ctx, obj1, prop, this_obj);
+ JS_FreeValue(ctx, obj1);
+ return retval;
+ }
+ if (em->get_own_property) {
+ JSPropertyDescriptor desc;
+ int ret;
+ JSValue obj1;
+
+ /* Note: if 'p' is a prototype, it can be
+ freed in the called function */
+ obj1 = JS_DupValue(ctx, JS_MKPTR(JS_TAG_OBJECT, p));
+ ret = em->get_own_property(ctx, &desc, obj1, prop);
+ JS_FreeValue(ctx, obj1);
+ if (ret < 0)
+ return JS_EXCEPTION;
+ if (ret) {
+ if (desc.flags & JS_PROP_GETSET) {
+ JS_FreeValue(ctx, desc.setter);
+ return JS_CallFree(ctx, desc.getter, this_obj, 0, NULL);
+ } else {
+ return desc.value;
+ }
+ }
+ }
+ }
+ }
+ }
+ p = p->shape->proto;
+ if (!p)
+ break;
+ }
+ if (unlikely(throw_ref_error)) {
+ return JS_ThrowReferenceErrorNotDefined(ctx, prop);
+ } else {
+ return JS_UNDEFINED;
+ }
+}
+
+static JSValue JS_ThrowTypeErrorPrivateNotFound(JSContext *ctx, JSAtom atom)
+{
+ return JS_ThrowTypeErrorAtom(ctx, "private class field '%s' does not exist",
+ atom);
+}
+
+/* Private fields can be added even on non extensible objects or
+ Proxies */
+static int JS_DefinePrivateField(JSContext *ctx, JSValueConst obj,
+ JSValueConst name, JSValue val)
+{
+ JSObject *p;
+ JSShapeProperty *prs;
+ JSProperty *pr;
+ JSAtom prop;
+
+ if (unlikely(JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT)) {
+ JS_ThrowTypeErrorNotAnObject(ctx);
+ goto fail;
+ }
+ /* safety check */
+ if (unlikely(JS_VALUE_GET_TAG(name) != JS_TAG_SYMBOL)) {
+ JS_ThrowTypeErrorNotASymbol(ctx);
+ goto fail;
+ }
+ prop = js_symbol_to_atom(ctx, (JSValue)name);
+ p = JS_VALUE_GET_OBJ(obj);
+ prs = find_own_property(&pr, p, prop);
+ if (prs) {
+ JS_ThrowTypeErrorAtom(ctx, "private class field '%s' already exists",
+ prop);
+ goto fail;
+ }
+ pr = add_property(ctx, p, prop, JS_PROP_C_W_E);
+ if (unlikely(!pr)) {
+ fail:
+ JS_FreeValue(ctx, val);
+ return -1;
+ }
+ pr->u.value = val;
+ return 0;
+}
+
+static JSValue JS_GetPrivateField(JSContext *ctx, JSValueConst obj,
+ JSValueConst name)
+{
+ JSObject *p;
+ JSShapeProperty *prs;
+ JSProperty *pr;
+ JSAtom prop;
+
+ if (unlikely(JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT))
+ return JS_ThrowTypeErrorNotAnObject(ctx);
+ /* safety check */
+ if (unlikely(JS_VALUE_GET_TAG(name) != JS_TAG_SYMBOL))
+ return JS_ThrowTypeErrorNotASymbol(ctx);
+ prop = js_symbol_to_atom(ctx, (JSValue)name);
+ p = JS_VALUE_GET_OBJ(obj);
+ prs = find_own_property(&pr, p, prop);
+ if (!prs) {
+ JS_ThrowTypeErrorPrivateNotFound(ctx, prop);
+ return JS_EXCEPTION;
+ }
+ return JS_DupValue(ctx, pr->u.value);
+}
+
+static int JS_SetPrivateField(JSContext *ctx, JSValueConst obj,
+ JSValueConst name, JSValue val)
+{
+ JSObject *p;
+ JSShapeProperty *prs;
+ JSProperty *pr;
+ JSAtom prop;
+
+ if (unlikely(JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT)) {
+ JS_ThrowTypeErrorNotAnObject(ctx);
+ goto fail;
+ }
+ /* safety check */
+ if (unlikely(JS_VALUE_GET_TAG(name) != JS_TAG_SYMBOL)) {
+ JS_ThrowTypeErrorNotASymbol(ctx);
+ goto fail;
+ }
+ prop = js_symbol_to_atom(ctx, (JSValue)name);
+ p = JS_VALUE_GET_OBJ(obj);
+ prs = find_own_property(&pr, p, prop);
+ if (!prs) {
+ JS_ThrowTypeErrorPrivateNotFound(ctx, prop);
+ fail:
+ JS_FreeValue(ctx, val);
+ return -1;
+ }
+ set_value(ctx, &pr->u.value, val);
+ return 0;
+}
+
+/* add a private brand field to 'home_obj' if not already present and
+ if obj is != null add a private brand to it */
+static int JS_AddBrand(JSContext *ctx, JSValueConst obj, JSValueConst home_obj)
+{
+ JSObject *p, *p1;
+ JSShapeProperty *prs;
+ JSProperty *pr;
+ JSValue brand;
+ JSAtom brand_atom;
+
+ if (unlikely(JS_VALUE_GET_TAG(home_obj) != JS_TAG_OBJECT)) {
+ JS_ThrowTypeErrorNotAnObject(ctx);
+ return -1;
+ }
+ p = JS_VALUE_GET_OBJ(home_obj);
+ prs = find_own_property(&pr, p, JS_ATOM_Private_brand);
+ if (!prs) {
+ /* if the brand is not present, add it */
+ brand = JS_NewSymbolFromAtom(ctx, JS_ATOM_brand, JS_ATOM_TYPE_PRIVATE);
+ if (JS_IsException(brand))
+ return -1;
+ pr = add_property(ctx, p, JS_ATOM_Private_brand, JS_PROP_C_W_E);
+ if (!pr) {
+ JS_FreeValue(ctx, brand);
+ return -1;
+ }
+ pr->u.value = JS_DupValue(ctx, brand);
+ } else {
+ brand = JS_DupValue(ctx, pr->u.value);
+ }
+ brand_atom = js_symbol_to_atom(ctx, brand);
+
+ if (JS_IsObject(obj)) {
+ p1 = JS_VALUE_GET_OBJ(obj);
+ prs = find_own_property(&pr, p1, brand_atom);
+ if (unlikely(prs)) {
+ JS_FreeAtom(ctx, brand_atom);
+ JS_ThrowTypeError(ctx, "private method is already present");
+ return -1;
+ }
+ pr = add_property(ctx, p1, brand_atom, JS_PROP_C_W_E);
+ JS_FreeAtom(ctx, brand_atom);
+ if (!pr)
+ return -1;
+ pr->u.value = JS_UNDEFINED;
+ } else {
+ JS_FreeAtom(ctx, brand_atom);
+ }
+ return 0;
+}
+
+/* return a boolean telling if the brand of the home object of 'func'
+ is present on 'obj' or -1 in case of exception */
+static int JS_CheckBrand(JSContext *ctx, JSValueConst obj, JSValueConst func)
+{
+ JSObject *p, *p1, *home_obj;
+ JSShapeProperty *prs;
+ JSProperty *pr;
+ JSValueConst brand;
+
+ /* get the home object of 'func' */
+ if (unlikely(JS_VALUE_GET_TAG(func) != JS_TAG_OBJECT))
+ goto not_obj;
+ p1 = JS_VALUE_GET_OBJ(func);
+ if (!js_class_has_bytecode(p1->class_id))
+ goto not_obj;
+ home_obj = p1->u.func.home_object;
+ if (!home_obj)
+ goto not_obj;
+ prs = find_own_property(&pr, home_obj, JS_ATOM_Private_brand);
+ if (!prs) {
+ JS_ThrowTypeError(ctx, "expecting <brand> private field");
+ return -1;
+ }
+ brand = pr->u.value;
+ /* safety check */
+ if (unlikely(JS_VALUE_GET_TAG(brand) != JS_TAG_SYMBOL))
+ goto not_obj;
+
+ /* get the brand array of 'obj' */
+ if (unlikely(JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT)) {
+ not_obj:
+ JS_ThrowTypeErrorNotAnObject(ctx);
+ return -1;
+ }
+ p = JS_VALUE_GET_OBJ(obj);
+ prs = find_own_property(&pr, p, js_symbol_to_atom(ctx, (JSValue)brand));
+ return (prs != NULL);
+}
+
+static uint32_t js_string_obj_get_length(JSContext *ctx,
+ JSValueConst obj)
+{
+ JSObject *p;
+ JSString *p1;
+ uint32_t len = 0;
+
+ /* This is a class exotic method: obj class_id is JS_CLASS_STRING */
+ p = JS_VALUE_GET_OBJ(obj);
+ if (JS_VALUE_GET_TAG(p->u.object_data) == JS_TAG_STRING) {
+ p1 = JS_VALUE_GET_STRING(p->u.object_data);
+ len = p1->len;
+ }
+ return len;
+}
+
+static int num_keys_cmp(const void *p1, const void *p2, void *opaque)
+{
+ JSContext *ctx = opaque;
+ JSAtom atom1 = ((const JSPropertyEnum *)p1)->atom;
+ JSAtom atom2 = ((const JSPropertyEnum *)p2)->atom;
+ uint32_t v1, v2;
+ BOOL atom1_is_integer, atom2_is_integer;
+
+ atom1_is_integer = JS_AtomIsArrayIndex(ctx, &v1, atom1);
+ atom2_is_integer = JS_AtomIsArrayIndex(ctx, &v2, atom2);
+ assert(atom1_is_integer && atom2_is_integer);
+ if (v1 < v2)
+ return -1;
+ else if (v1 == v2)
+ return 0;
+ else
+ return 1;
+}
+
+static void js_free_prop_enum(JSContext *ctx, JSPropertyEnum *tab, uint32_t len)
+{
+ uint32_t i;
+ if (tab) {
+ for(i = 0; i < len; i++)
+ JS_FreeAtom(ctx, tab[i].atom);
+ js_free(ctx, tab);
+ }
+}
+
+/* return < 0 in case if exception, 0 if OK. ptab and its atoms must
+ be freed by the user. */
+static int __exception JS_GetOwnPropertyNamesInternal(JSContext *ctx,
+ JSPropertyEnum **ptab,
+ uint32_t *plen,
+ JSObject *p, int flags)
+{
+ int i, j;
+ JSShape *sh;
+ JSShapeProperty *prs;
+ JSPropertyEnum *tab_atom, *tab_exotic;
+ JSAtom atom;
+ uint32_t num_keys_count, str_keys_count, sym_keys_count, atom_count;
+ uint32_t num_index, str_index, sym_index, exotic_count, exotic_keys_count;
+ BOOL is_enumerable, num_sorted;
+ uint32_t num_key;
+ JSAtomKindEnum kind;
+
+ /* clear pointer for consistency in case of failure */
+ *ptab = NULL;
+ *plen = 0;
+
+ /* compute the number of returned properties */
+ num_keys_count = 0;
+ str_keys_count = 0;
+ sym_keys_count = 0;
+ exotic_keys_count = 0;
+ exotic_count = 0;
+ tab_exotic = NULL;
+ sh = p->shape;
+ for(i = 0, prs = get_shape_prop(sh); i < sh->prop_count; i++, prs++) {
+ atom = prs->atom;
+ if (atom != JS_ATOM_NULL) {
+ is_enumerable = ((prs->flags & JS_PROP_ENUMERABLE) != 0);
+ kind = JS_AtomGetKind(ctx, atom);
+ if ((!(flags & JS_GPN_ENUM_ONLY) || is_enumerable) &&
+ ((flags >> kind) & 1) != 0) {
+ /* need to raise an exception in case of the module
+ name space (implicit GetOwnProperty) */
+ if (unlikely((prs->flags & JS_PROP_TMASK) == JS_PROP_VARREF) &&
+ (flags & (JS_GPN_SET_ENUM | JS_GPN_ENUM_ONLY))) {
+ JSVarRef *var_ref = p->prop[i].u.var_ref;
+ if (unlikely(JS_IsUninitialized(*var_ref->pvalue))) {
+ JS_ThrowReferenceErrorUninitialized(ctx, prs->atom);
+ return -1;
+ }
+ }
+ if (JS_AtomIsArrayIndex(ctx, &num_key, atom)) {
+ num_keys_count++;
+ } else if (kind == JS_ATOM_KIND_STRING) {
+ str_keys_count++;
+ } else {
+ sym_keys_count++;
+ }
+ }
+ }
+ }
+
+ if (p->is_exotic) {
+ if (p->fast_array) {
+ if (flags & JS_GPN_STRING_MASK) {
+ num_keys_count += p->u.array.count;
+ }
+ } else if (p->class_id == JS_CLASS_STRING) {
+ if (flags & JS_GPN_STRING_MASK) {
+ num_keys_count += js_string_obj_get_length(ctx, JS_MKPTR(JS_TAG_OBJECT, p));
+ }
+ } else {
+ const JSClassExoticMethods *em = ctx->rt->class_array[p->class_id].exotic;
+ if (em && em->get_own_property_names) {
+ if (em->get_own_property_names(ctx, &tab_exotic, &exotic_count,
+ JS_MKPTR(JS_TAG_OBJECT, p)))
+ return -1;
+ for(i = 0; i < exotic_count; i++) {
+ atom = tab_exotic[i].atom;
+ kind = JS_AtomGetKind(ctx, atom);
+ if (((flags >> kind) & 1) != 0) {
+ is_enumerable = FALSE;
+ if (flags & (JS_GPN_SET_ENUM | JS_GPN_ENUM_ONLY)) {
+ JSPropertyDescriptor desc;
+ int res;
+ /* set the "is_enumerable" field if necessary */
+ res = JS_GetOwnPropertyInternal(ctx, &desc, p, atom);
+ if (res < 0) {
+ js_free_prop_enum(ctx, tab_exotic, exotic_count);
+ return -1;
+ }
+ if (res) {
+ is_enumerable =
+ ((desc.flags & JS_PROP_ENUMERABLE) != 0);
+ js_free_desc(ctx, &desc);
+ }
+ tab_exotic[i].is_enumerable = is_enumerable;
+ }
+ if (!(flags & JS_GPN_ENUM_ONLY) || is_enumerable) {
+ exotic_keys_count++;
+ }
+ }
+ }
+ }
+ }
+ }
+
+ /* fill them */
+
+ atom_count = num_keys_count + str_keys_count + sym_keys_count + exotic_keys_count;
+ /* avoid allocating 0 bytes */
+ tab_atom = js_malloc(ctx, sizeof(tab_atom[0]) * max_int(atom_count, 1));
+ if (!tab_atom) {
+ js_free_prop_enum(ctx, tab_exotic, exotic_count);
+ return -1;
+ }
+
+ num_index = 0;
+ str_index = num_keys_count;
+ sym_index = str_index + str_keys_count;
+
+ num_sorted = TRUE;
+ sh = p->shape;
+ for(i = 0, prs = get_shape_prop(sh); i < sh->prop_count; i++, prs++) {
+ atom = prs->atom;
+ if (atom != JS_ATOM_NULL) {
+ is_enumerable = ((prs->flags & JS_PROP_ENUMERABLE) != 0);
+ kind = JS_AtomGetKind(ctx, atom);
+ if ((!(flags & JS_GPN_ENUM_ONLY) || is_enumerable) &&
+ ((flags >> kind) & 1) != 0) {
+ if (JS_AtomIsArrayIndex(ctx, &num_key, atom)) {
+ j = num_index++;
+ num_sorted = FALSE;
+ } else if (kind == JS_ATOM_KIND_STRING) {
+ j = str_index++;
+ } else {
+ j = sym_index++;
+ }
+ tab_atom[j].atom = JS_DupAtom(ctx, atom);
+ tab_atom[j].is_enumerable = is_enumerable;
+ }
+ }
+ }
+
+ if (p->is_exotic) {
+ int len;
+ if (p->fast_array) {
+ if (flags & JS_GPN_STRING_MASK) {
+ len = p->u.array.count;
+ goto add_array_keys;
+ }
+ } else if (p->class_id == JS_CLASS_STRING) {
+ if (flags & JS_GPN_STRING_MASK) {
+ len = js_string_obj_get_length(ctx, JS_MKPTR(JS_TAG_OBJECT, p));
+ add_array_keys:
+ for(i = 0; i < len; i++) {
+ tab_atom[num_index].atom = __JS_AtomFromUInt32(i);
+ if (tab_atom[num_index].atom == JS_ATOM_NULL) {
+ js_free_prop_enum(ctx, tab_atom, num_index);
+ return -1;
+ }
+ tab_atom[num_index].is_enumerable = TRUE;
+ num_index++;
+ }
+ }
+ } else {
+ /* Note: exotic keys are not reordered and comes after the object own properties. */
+ for(i = 0; i < exotic_count; i++) {
+ atom = tab_exotic[i].atom;
+ is_enumerable = tab_exotic[i].is_enumerable;
+ kind = JS_AtomGetKind(ctx, atom);
+ if ((!(flags & JS_GPN_ENUM_ONLY) || is_enumerable) &&
+ ((flags >> kind) & 1) != 0) {
+ tab_atom[sym_index].atom = atom;
+ tab_atom[sym_index].is_enumerable = is_enumerable;
+ sym_index++;
+ } else {
+ JS_FreeAtom(ctx, atom);
+ }
+ }
+ js_free(ctx, tab_exotic);
+ }
+ }
+
+ assert(num_index == num_keys_count);
+ assert(str_index == num_keys_count + str_keys_count);
+ assert(sym_index == atom_count);
+
+ if (num_keys_count != 0 && !num_sorted) {
+ rqsort(tab_atom, num_keys_count, sizeof(tab_atom[0]), num_keys_cmp,
+ ctx);
+ }
+ *ptab = tab_atom;
+ *plen = atom_count;
+ return 0;
+}
+
+int JS_GetOwnPropertyNames(JSContext *ctx, JSPropertyEnum **ptab,
+ uint32_t *plen, JSValueConst obj, int flags)
+{
+ if (JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT) {
+ JS_ThrowTypeErrorNotAnObject(ctx);
+ return -1;
+ }
+ return JS_GetOwnPropertyNamesInternal(ctx, ptab, plen,
+ JS_VALUE_GET_OBJ(obj), flags);
+}
+
+/* Return -1 if exception,
+ FALSE if the property does not exist, TRUE if it exists. If TRUE is
+ returned, the property descriptor 'desc' is filled present. */
+static int JS_GetOwnPropertyInternal(JSContext *ctx, JSPropertyDescriptor *desc,
+ JSObject *p, JSAtom prop)
+{
+ JSShapeProperty *prs;
+ JSProperty *pr;
+
+retry:
+ prs = find_own_property(&pr, p, prop);
+ if (prs) {
+ if (desc) {
+ desc->flags = prs->flags & JS_PROP_C_W_E;
+ desc->getter = JS_UNDEFINED;
+ desc->setter = JS_UNDEFINED;
+ desc->value = JS_UNDEFINED;
+ if (unlikely(prs->flags & JS_PROP_TMASK)) {
+ if ((prs->flags & JS_PROP_TMASK) == JS_PROP_GETSET) {
+ desc->flags |= JS_PROP_GETSET;
+ if (pr->u.getset.getter)
+ desc->getter = JS_DupValue(ctx, JS_MKPTR(JS_TAG_OBJECT, pr->u.getset.getter));
+ if (pr->u.getset.setter)
+ desc->setter = JS_DupValue(ctx, JS_MKPTR(JS_TAG_OBJECT, pr->u.getset.setter));
+ } else if ((prs->flags & JS_PROP_TMASK) == JS_PROP_VARREF) {
+ JSValue val = *pr->u.var_ref->pvalue;
+ if (unlikely(JS_IsUninitialized(val))) {
+ JS_ThrowReferenceErrorUninitialized(ctx, prs->atom);
+ return -1;
+ }
+ desc->value = JS_DupValue(ctx, val);
+ } else if ((prs->flags & JS_PROP_TMASK) == JS_PROP_AUTOINIT) {
+ /* Instantiate property and retry */
+ if (JS_AutoInitProperty(ctx, p, prop, pr, prs))
+ return -1;
+ goto retry;
+ }
+ } else {
+ desc->value = JS_DupValue(ctx, pr->u.value);
+ }
+ } else {
+ /* for consistency, send the exception even if desc is NULL */
+ if (unlikely((prs->flags & JS_PROP_TMASK) == JS_PROP_VARREF)) {
+ if (unlikely(JS_IsUninitialized(*pr->u.var_ref->pvalue))) {
+ JS_ThrowReferenceErrorUninitialized(ctx, prs->atom);
+ return -1;
+ }
+ } else if ((prs->flags & JS_PROP_TMASK) == JS_PROP_AUTOINIT) {
+ /* nothing to do: delay instantiation until actual value and/or attributes are read */
+ }
+ }
+ return TRUE;
+ }
+ if (p->is_exotic) {
+ if (p->fast_array) {
+ /* specific case for fast arrays */
+ if (__JS_AtomIsTaggedInt(prop)) {
+ uint32_t idx;
+ idx = __JS_AtomToUInt32(prop);
+ if (idx < p->u.array.count) {
+ if (desc) {
+ desc->flags = JS_PROP_WRITABLE | JS_PROP_ENUMERABLE |
+ JS_PROP_CONFIGURABLE;
+ desc->getter = JS_UNDEFINED;
+ desc->setter = JS_UNDEFINED;
+ desc->value = JS_GetPropertyUint32(ctx, JS_MKPTR(JS_TAG_OBJECT, p), idx);
+ }
+ return TRUE;
+ }
+ }
+ } else {
+ const JSClassExoticMethods *em = ctx->rt->class_array[p->class_id].exotic;
+ if (em && em->get_own_property) {
+ return em->get_own_property(ctx, desc,
+ JS_MKPTR(JS_TAG_OBJECT, p), prop);
+ }
+ }
+ }
+ return FALSE;
+}
+
+int JS_GetOwnProperty(JSContext *ctx, JSPropertyDescriptor *desc,
+ JSValueConst obj, JSAtom prop)
+{
+ if (JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT) {
+ JS_ThrowTypeErrorNotAnObject(ctx);
+ return -1;
+ }
+ return JS_GetOwnPropertyInternal(ctx, desc, JS_VALUE_GET_OBJ(obj), prop);
+}
+
+/* return -1 if exception (Proxy object only) or TRUE/FALSE */
+int JS_IsExtensible(JSContext *ctx, JSValueConst obj)
+{
+ JSObject *p;
+
+ if (unlikely(JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT))
+ return FALSE;
+ p = JS_VALUE_GET_OBJ(obj);
+ if (unlikely(p->class_id == JS_CLASS_PROXY))
+ return js_proxy_isExtensible(ctx, obj);
+ else
+ return p->extensible;
+}
+
+/* return -1 if exception (Proxy object only) or TRUE/FALSE */
+int JS_PreventExtensions(JSContext *ctx, JSValueConst obj)
+{
+ JSObject *p;
+
+ if (unlikely(JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT))
+ return FALSE;
+ p = JS_VALUE_GET_OBJ(obj);
+ if (unlikely(p->class_id == JS_CLASS_PROXY))
+ return js_proxy_preventExtensions(ctx, obj);
+ p->extensible = FALSE;
+ return TRUE;
+}
+
+/* return -1 if exception otherwise TRUE or FALSE */
+int JS_HasProperty(JSContext *ctx, JSValueConst obj, JSAtom prop)
+{
+ JSObject *p;
+ int ret;
+ JSValue obj1;
+
+ if (unlikely(JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT))
+ return FALSE;
+ p = JS_VALUE_GET_OBJ(obj);
+ for(;;) {
+ if (p->is_exotic) {
+ const JSClassExoticMethods *em = ctx->rt->class_array[p->class_id].exotic;
+ if (em && em->has_property) {
+ /* has_property can free the prototype */
+ obj1 = JS_DupValue(ctx, JS_MKPTR(JS_TAG_OBJECT, p));
+ ret = em->has_property(ctx, obj1, prop);
+ JS_FreeValue(ctx, obj1);
+ return ret;
+ }
+ }
+ /* JS_GetOwnPropertyInternal can free the prototype */
+ JS_DupValue(ctx, JS_MKPTR(JS_TAG_OBJECT, p));
+ ret = JS_GetOwnPropertyInternal(ctx, NULL, p, prop);
+ JS_FreeValue(ctx, JS_MKPTR(JS_TAG_OBJECT, p));
+ if (ret != 0)
+ return ret;
+ if (p->class_id >= JS_CLASS_UINT8C_ARRAY &&
+ p->class_id <= JS_CLASS_FLOAT64_ARRAY) {
+ ret = JS_AtomIsNumericIndex(ctx, prop);
+ if (ret != 0) {
+ if (ret < 0)
+ return -1;
+ return FALSE;
+ }
+ }
+ p = p->shape->proto;
+ if (!p)
+ break;
+ }
+ return FALSE;
+}
+
+/* val must be a symbol */
+static JSAtom js_symbol_to_atom(JSContext *ctx, JSValue val)
+{
+ JSAtomStruct *p = JS_VALUE_GET_PTR(val);
+ return js_get_atom_index(ctx->rt, p);
+}
+
+/* return JS_ATOM_NULL in case of exception */
+JSAtom JS_ValueToAtom(JSContext *ctx, JSValueConst val)
+{
+ JSAtom atom;
+ uint32_t tag;
+ tag = JS_VALUE_GET_TAG(val);
+ if (tag == JS_TAG_INT &&
+ (uint32_t)JS_VALUE_GET_INT(val) <= JS_ATOM_MAX_INT) {
+ /* fast path for integer values */
+ atom = __JS_AtomFromUInt32(JS_VALUE_GET_INT(val));
+ } else if (tag == JS_TAG_SYMBOL) {
+ JSAtomStruct *p = JS_VALUE_GET_PTR(val);
+ atom = JS_DupAtom(ctx, js_get_atom_index(ctx->rt, p));
+ } else {
+ JSValue str;
+ str = JS_ToPropertyKey(ctx, val);
+ if (JS_IsException(str))
+ return JS_ATOM_NULL;
+ if (JS_VALUE_GET_TAG(str) == JS_TAG_SYMBOL) {
+ atom = js_symbol_to_atom(ctx, str);
+ } else {
+ atom = JS_NewAtomStr(ctx, JS_VALUE_GET_STRING(str));
+ }
+ }
+ return atom;
+}
+
+static JSValue JS_GetPropertyValue(JSContext *ctx, JSValueConst this_obj,
+ JSValue prop)
+{
+ JSAtom atom;
+ JSValue ret;
+
+ if (likely(JS_VALUE_GET_TAG(this_obj) == JS_TAG_OBJECT &&
+ JS_VALUE_GET_TAG(prop) == JS_TAG_INT)) {
+ JSObject *p;
+ uint32_t idx;
+ /* fast path for array access */
+ p = JS_VALUE_GET_OBJ(this_obj);
+ idx = JS_VALUE_GET_INT(prop);
+ switch(p->class_id) {
+ case JS_CLASS_ARRAY:
+ case JS_CLASS_ARGUMENTS:
+ if (unlikely(idx >= p->u.array.count)) goto slow_path;
+ return JS_DupValue(ctx, p->u.array.u.values[idx]);
+ case JS_CLASS_INT8_ARRAY:
+ if (unlikely(idx >= p->u.array.count)) goto slow_path;
+ return JS_NewInt32(ctx, p->u.array.u.int8_ptr[idx]);
+ case JS_CLASS_UINT8C_ARRAY:
+ case JS_CLASS_UINT8_ARRAY:
+ if (unlikely(idx >= p->u.array.count)) goto slow_path;
+ return JS_NewInt32(ctx, p->u.array.u.uint8_ptr[idx]);
+ case JS_CLASS_INT16_ARRAY:
+ if (unlikely(idx >= p->u.array.count)) goto slow_path;
+ return JS_NewInt32(ctx, p->u.array.u.int16_ptr[idx]);
+ case JS_CLASS_UINT16_ARRAY:
+ if (unlikely(idx >= p->u.array.count)) goto slow_path;
+ return JS_NewInt32(ctx, p->u.array.u.uint16_ptr[idx]);
+ case JS_CLASS_INT32_ARRAY:
+ if (unlikely(idx >= p->u.array.count)) goto slow_path;
+ return JS_NewInt32(ctx, p->u.array.u.int32_ptr[idx]);
+ case JS_CLASS_UINT32_ARRAY:
+ if (unlikely(idx >= p->u.array.count)) goto slow_path;
+ return JS_NewUint32(ctx, p->u.array.u.uint32_ptr[idx]);
+ case JS_CLASS_BIG_INT64_ARRAY:
+ if (unlikely(idx >= p->u.array.count)) goto slow_path;
+ return JS_NewBigInt64(ctx, p->u.array.u.int64_ptr[idx]);
+ case JS_CLASS_BIG_UINT64_ARRAY:
+ if (unlikely(idx >= p->u.array.count)) goto slow_path;
+ return JS_NewBigUint64(ctx, p->u.array.u.uint64_ptr[idx]);
+ case JS_CLASS_FLOAT32_ARRAY:
+ if (unlikely(idx >= p->u.array.count)) goto slow_path;
+ return __JS_NewFloat64(ctx, p->u.array.u.float_ptr[idx]);
+ case JS_CLASS_FLOAT64_ARRAY:
+ if (unlikely(idx >= p->u.array.count)) goto slow_path;
+ return __JS_NewFloat64(ctx, p->u.array.u.double_ptr[idx]);
+ default:
+ goto slow_path;
+ }
+ } else {
+ slow_path:
+ atom = JS_ValueToAtom(ctx, prop);
+ JS_FreeValue(ctx, prop);
+ if (unlikely(atom == JS_ATOM_NULL))
+ return JS_EXCEPTION;
+ ret = JS_GetProperty(ctx, this_obj, atom);
+ JS_FreeAtom(ctx, atom);
+ return ret;
+ }
+}
+
+JSValue JS_GetPropertyUint32(JSContext *ctx, JSValueConst this_obj,
+ uint32_t idx)
+{
+ return JS_GetPropertyValue(ctx, this_obj, JS_NewUint32(ctx, idx));
+}
+
+/* Check if an object has a generalized numeric property. Return value:
+ -1 for exception,
+ TRUE if property exists, stored into *pval,
+ FALSE if proprty does not exist.
+ */
+static int JS_TryGetPropertyInt64(JSContext *ctx, JSValueConst obj, int64_t idx, JSValue *pval)
+{
+ JSValue val = JS_UNDEFINED;
+ JSAtom prop;
+ int present;
+
+ if (likely((uint64_t)idx <= JS_ATOM_MAX_INT)) {
+ /* fast path */
+ present = JS_HasProperty(ctx, obj, __JS_AtomFromUInt32(idx));
+ if (present > 0) {
+ val = JS_GetPropertyValue(ctx, obj, JS_NewInt32(ctx, idx));
+ if (unlikely(JS_IsException(val)))
+ present = -1;
+ }
+ } else {
+ prop = JS_NewAtomInt64(ctx, idx);
+ present = -1;
+ if (likely(prop != JS_ATOM_NULL)) {
+ present = JS_HasProperty(ctx, obj, prop);
+ if (present > 0) {
+ val = JS_GetProperty(ctx, obj, prop);
+ if (unlikely(JS_IsException(val)))
+ present = -1;
+ }
+ JS_FreeAtom(ctx, prop);
+ }
+ }
+ *pval = val;
+ return present;
+}
+
+static JSValue JS_GetPropertyInt64(JSContext *ctx, JSValueConst obj, int64_t idx)
+{
+ JSAtom prop;
+ JSValue val;
+
+ if ((uint64_t)idx <= INT32_MAX) {
+ /* fast path for fast arrays */
+ return JS_GetPropertyValue(ctx, obj, JS_NewInt32(ctx, idx));
+ }
+ prop = JS_NewAtomInt64(ctx, idx);
+ if (prop == JS_ATOM_NULL)
+ return JS_EXCEPTION;
+
+ val = JS_GetProperty(ctx, obj, prop);
+ JS_FreeAtom(ctx, prop);
+ return val;
+}
+
+JSValue JS_GetPropertyStr(JSContext *ctx, JSValueConst this_obj,
+ const char *prop)
+{
+ JSAtom atom;
+ JSValue ret;
+ atom = JS_NewAtom(ctx, prop);
+ ret = JS_GetProperty(ctx, this_obj, atom);
+ JS_FreeAtom(ctx, atom);
+ return ret;
+}
+
+/* Note: the property value is not initialized. Return NULL if memory
+ error. */
+static JSProperty *add_property(JSContext *ctx,
+ JSObject *p, JSAtom prop, int prop_flags)
+{
+ JSShape *sh, *new_sh;
+
+ sh = p->shape;
+ if (sh->is_hashed) {
+ /* try to find an existing shape */
+ new_sh = find_hashed_shape_prop(ctx->rt, sh, prop, prop_flags);
+ if (new_sh) {
+ /* matching shape found: use it */
+ /* the property array may need to be resized */
+ if (new_sh->prop_size != sh->prop_size) {
+ JSProperty *new_prop;
+ new_prop = js_realloc(ctx, p->prop, sizeof(p->prop[0]) *
+ new_sh->prop_size);
+ if (!new_prop)
+ return NULL;
+ p->prop = new_prop;
+ }
+ p->shape = js_dup_shape(new_sh);
+ js_free_shape(ctx->rt, sh);
+ return &p->prop[new_sh->prop_count - 1];
+ } else if (sh->header.ref_count != 1) {
+ /* if the shape is shared, clone it */
+ new_sh = js_clone_shape(ctx, sh);
+ if (!new_sh)
+ return NULL;
+ /* hash the cloned shape */
+ new_sh->is_hashed = TRUE;
+ js_shape_hash_link(ctx->rt, new_sh);
+ js_free_shape(ctx->rt, p->shape);
+ p->shape = new_sh;
+ }
+ }
+ assert(p->shape->header.ref_count == 1);
+ if (add_shape_property(ctx, &p->shape, p, prop, prop_flags))
+ return NULL;
+ return &p->prop[p->shape->prop_count - 1];
+}
+
+/* can be called on Array or Arguments objects. return < 0 if
+ memory alloc error. */
+static no_inline __exception int convert_fast_array_to_array(JSContext *ctx,
+ JSObject *p)
+{
+ JSProperty *pr;
+ JSShape *sh;
+ JSValue *tab;
+ uint32_t i, len, new_count;
+
+ if (js_shape_prepare_update(ctx, p, NULL))
+ return -1;
+ len = p->u.array.count;
+ /* resize the properties once to simplify the error handling */
+ sh = p->shape;
+ new_count = sh->prop_count + len;
+ if (new_count > sh->prop_size) {
+ if (resize_properties(ctx, &p->shape, p, new_count))
+ return -1;
+ }
+
+ tab = p->u.array.u.values;
+ for(i = 0; i < len; i++) {
+ /* add_property cannot fail here but
+ __JS_AtomFromUInt32(i) fails for i > INT32_MAX */
+ pr = add_property(ctx, p, __JS_AtomFromUInt32(i), JS_PROP_C_W_E);
+ pr->u.value = *tab++;
+ }
+ js_free(ctx, p->u.array.u.values);
+ p->u.array.count = 0;
+ p->u.array.u.values = NULL; /* fail safe */
+ p->u.array.u1.size = 0;
+ p->fast_array = 0;
+ return 0;
+}
+
+static int delete_property(JSContext *ctx, JSObject *p, JSAtom atom)
+{
+ JSShape *sh;
+ JSShapeProperty *pr, *lpr, *prop;
+ JSProperty *pr1;
+ uint32_t lpr_idx;
+ intptr_t h, h1;
+
+ redo:
+ sh = p->shape;
+ h1 = atom & sh->prop_hash_mask;
+ h = prop_hash_end(sh)[-h1 - 1];
+ prop = get_shape_prop(sh);
+ lpr = NULL;
+ lpr_idx = 0; /* prevent warning */
+ while (h != 0) {
+ pr = &prop[h - 1];
+ if (likely(pr->atom == atom)) {
+ /* found ! */
+ if (!(pr->flags & JS_PROP_CONFIGURABLE))
+ return FALSE;
+ /* realloc the shape if needed */
+ if (lpr)
+ lpr_idx = lpr - get_shape_prop(sh);
+ if (js_shape_prepare_update(ctx, p, &pr))
+ return -1;
+ sh = p->shape;
+ /* remove property */
+ if (lpr) {
+ lpr = get_shape_prop(sh) + lpr_idx;
+ lpr->hash_next = pr->hash_next;
+ } else {
+ prop_hash_end(sh)[-h1 - 1] = pr->hash_next;
+ }
+ sh->deleted_prop_count++;
+ /* free the entry */
+ pr1 = &p->prop[h - 1];
+ free_property(ctx->rt, pr1, pr->flags);
+ JS_FreeAtom(ctx, pr->atom);
+ /* put default values */
+ pr->flags = 0;
+ pr->atom = JS_ATOM_NULL;
+ pr1->u.value = JS_UNDEFINED;
+
+ /* compact the properties if too many deleted properties */
+ if (sh->deleted_prop_count >= 8 &&
+ sh->deleted_prop_count >= ((unsigned)sh->prop_count / 2)) {
+ compact_properties(ctx, p);
+ }
+ return TRUE;
+ }
+ lpr = pr;
+ h = pr->hash_next;
+ }
+
+ if (p->is_exotic) {
+ if (p->fast_array) {
+ uint32_t idx;
+ if (JS_AtomIsArrayIndex(ctx, &idx, atom) &&
+ idx < p->u.array.count) {
+ if (p->class_id == JS_CLASS_ARRAY ||
+ p->class_id == JS_CLASS_ARGUMENTS) {
+ /* Special case deleting the last element of a fast Array */
+ if (idx == p->u.array.count - 1) {
+ JS_FreeValue(ctx, p->u.array.u.values[idx]);
+ p->u.array.count = idx;
+ return TRUE;
+ }
+ if (convert_fast_array_to_array(ctx, p))
+ return -1;
+ goto redo;
+ } else {
+ return FALSE;
+ }
+ }
+ } else {
+ const JSClassExoticMethods *em = ctx->rt->class_array[p->class_id].exotic;
+ if (em && em->delete_property) {
+ return em->delete_property(ctx, JS_MKPTR(JS_TAG_OBJECT, p), atom);
+ }
+ }
+ }
+ /* not found */
+ return TRUE;
+}
+
+static int call_setter(JSContext *ctx, JSObject *setter,
+ JSValueConst this_obj, JSValue val, int flags)
+{
+ JSValue ret, func;
+ if (likely(setter)) {
+ func = JS_MKPTR(JS_TAG_OBJECT, setter);
+ /* Note: the field could be removed in the setter */
+ func = JS_DupValue(ctx, func);
+ ret = JS_CallFree(ctx, func, this_obj, 1, (JSValueConst *)&val);
+ JS_FreeValue(ctx, val);
+ if (JS_IsException(ret))
+ return -1;
+ JS_FreeValue(ctx, ret);
+ return TRUE;
+ } else {
+ JS_FreeValue(ctx, val);
+ if ((flags & JS_PROP_THROW) ||
+ ((flags & JS_PROP_THROW_STRICT) && is_strict_mode(ctx))) {
+ JS_ThrowTypeError(ctx, "no setter for property");
+ return -1;
+ }
+ return FALSE;
+ }
+}
+
+/* set the array length and remove the array elements if necessary. */
+static int set_array_length(JSContext *ctx, JSObject *p, JSValue val,
+ int flags)
+{
+ uint32_t len, idx, cur_len;
+ int i, ret;
+
+ /* Note: this call can reallocate the properties of 'p' */
+ ret = JS_ToArrayLengthFree(ctx, &len, val, FALSE);
+ if (ret)
+ return -1;
+ /* JS_ToArrayLengthFree() must be done before the read-only test */
+ if (unlikely(!(p->shape->prop[0].flags & JS_PROP_WRITABLE)))
+ return JS_ThrowTypeErrorReadOnly(ctx, flags, JS_ATOM_length);
+
+ if (likely(p->fast_array)) {
+ uint32_t old_len = p->u.array.count;
+ if (len < old_len) {
+ for(i = len; i < old_len; i++) {
+ JS_FreeValue(ctx, p->u.array.u.values[i]);
+ }
+ p->u.array.count = len;
+ }
+ p->prop[0].u.value = JS_NewUint32(ctx, len);
+ } else {
+ /* Note: length is always a uint32 because the object is an
+ array */
+ JS_ToUint32(ctx, &cur_len, p->prop[0].u.value);
+ if (len < cur_len) {
+ uint32_t d;
+ JSShape *sh;
+ JSShapeProperty *pr;
+
+ d = cur_len - len;
+ sh = p->shape;
+ if (d <= sh->prop_count) {
+ JSAtom atom;
+
+ /* faster to iterate */
+ while (cur_len > len) {
+ atom = JS_NewAtomUInt32(ctx, cur_len - 1);
+ ret = delete_property(ctx, p, atom);
+ JS_FreeAtom(ctx, atom);
+ if (unlikely(!ret)) {
+ /* unlikely case: property is not
+ configurable */
+ break;
+ }
+ cur_len--;
+ }
+ } else {
+ /* faster to iterate thru all the properties. Need two
+ passes in case one of the property is not
+ configurable */
+ cur_len = len;
+ for(i = 0, pr = get_shape_prop(sh); i < sh->prop_count;
+ i++, pr++) {
+ if (pr->atom != JS_ATOM_NULL &&
+ JS_AtomIsArrayIndex(ctx, &idx, pr->atom)) {
+ if (idx >= cur_len &&
+ !(pr->flags & JS_PROP_CONFIGURABLE)) {
+ cur_len = idx + 1;
+ }
+ }
+ }
+
+ for(i = 0, pr = get_shape_prop(sh); i < sh->prop_count;
+ i++, pr++) {
+ if (pr->atom != JS_ATOM_NULL &&
+ JS_AtomIsArrayIndex(ctx, &idx, pr->atom)) {
+ if (idx >= cur_len) {
+ /* remove the property */
+ delete_property(ctx, p, pr->atom);
+ /* WARNING: the shape may have been modified */
+ sh = p->shape;
+ pr = get_shape_prop(sh) + i;
+ }
+ }
+ }
+ }
+ } else {
+ cur_len = len;
+ }
+ set_value(ctx, &p->prop[0].u.value, JS_NewUint32(ctx, cur_len));
+ if (unlikely(cur_len > len)) {
+ return JS_ThrowTypeErrorOrFalse(ctx, flags, "not configurable");
+ }
+ }
+ return TRUE;
+}
+
+/* return -1 if exception */
+static int expand_fast_array(JSContext *ctx, JSObject *p, uint32_t new_len)
+{
+ uint32_t new_size;
+ size_t slack;
+ JSValue *new_array_prop;
+ /* XXX: potential arithmetic overflow */
+ new_size = max_int(new_len, p->u.array.u1.size * 3 / 2);
+ new_array_prop = js_realloc2(ctx, p->u.array.u.values, sizeof(JSValue) * new_size, &slack);
+ if (!new_array_prop)
+ return -1;
+ new_size += slack / sizeof(*new_array_prop);
+ p->u.array.u.values = new_array_prop;
+ p->u.array.u1.size = new_size;
+ return 0;
+}
+
+/* Preconditions: 'p' must be of class JS_CLASS_ARRAY, p->fast_array =
+ TRUE and p->extensible = TRUE */
+static int add_fast_array_element(JSContext *ctx, JSObject *p,
+ JSValue val, int flags)
+{
+ uint32_t new_len, array_len;
+ /* extend the array by one */
+ /* XXX: convert to slow array if new_len > 2^31-1 elements */
+ new_len = p->u.array.count + 1;
+ /* update the length if necessary. We assume that if the length is
+ not an integer, then if it >= 2^31. */
+ if (likely(JS_VALUE_GET_TAG(p->prop[0].u.value) == JS_TAG_INT)) {
+ array_len = JS_VALUE_GET_INT(p->prop[0].u.value);
+ if (new_len > array_len) {
+ if (unlikely(!(get_shape_prop(p->shape)->flags & JS_PROP_WRITABLE))) {
+ JS_FreeValue(ctx, val);
+ return JS_ThrowTypeErrorReadOnly(ctx, flags, JS_ATOM_length);
+ }
+ p->prop[0].u.value = JS_NewInt32(ctx, new_len);
+ }
+ }
+ if (unlikely(new_len > p->u.array.u1.size)) {
+ if (expand_fast_array(ctx, p, new_len)) {
+ JS_FreeValue(ctx, val);
+ return -1;
+ }
+ }
+ p->u.array.u.values[new_len - 1] = val;
+ p->u.array.count = new_len;
+ return TRUE;
+}
+
+/* Allocate a new fast array. Its 'length' property is set to zero. It
+ maximum size is 2^31-1 elements. For convenience, 'len' is a 64 bit
+ integer. WARNING: the content of the array is not initialized. */
+static JSValue js_allocate_fast_array(JSContext *ctx, int64_t len)
+{
+ JSValue arr;
+ JSObject *p;
+
+ if (len > INT32_MAX)
+ return JS_ThrowRangeError(ctx, "invalid array length");
+ arr = JS_NewArray(ctx);
+ if (JS_IsException(arr))
+ return arr;
+ if (len > 0) {
+ p = JS_VALUE_GET_OBJ(arr);
+ if (expand_fast_array(ctx, p, len) < 0) {
+ JS_FreeValue(ctx, arr);
+ return JS_EXCEPTION;
+ }
+ p->u.array.count = len;
+ }
+ return arr;
+}
+
+static void js_free_desc(JSContext *ctx, JSPropertyDescriptor *desc)
+{
+ JS_FreeValue(ctx, desc->getter);
+ JS_FreeValue(ctx, desc->setter);
+ JS_FreeValue(ctx, desc->value);
+}
+
+/* return -1 in case of exception or TRUE or FALSE. Warning: 'val' is
+ freed by the function. 'flags' is a bitmask of JS_PROP_NO_ADD,
+ JS_PROP_THROW or JS_PROP_THROW_STRICT. If JS_PROP_NO_ADD is set,
+ the new property is not added and an error is raised. 'this_obj' is
+ the receiver. If obj != this_obj, then obj must be an object
+ (Reflect.set case). */
+int JS_SetPropertyInternal(JSContext *ctx, JSValueConst obj,
+ JSAtom prop, JSValue val, JSValueConst this_obj, int flags)
+{
+ JSObject *p, *p1;
+ JSShapeProperty *prs;
+ JSProperty *pr;
+ uint32_t tag;
+ JSPropertyDescriptor desc;
+ int ret;
+#if 0
+ printf("JS_SetPropertyInternal: "); print_atom(ctx, prop); printf("\n");
+#endif
+ tag = JS_VALUE_GET_TAG(this_obj);
+ if (unlikely(tag != JS_TAG_OBJECT)) {
+ if (JS_VALUE_GET_TAG(obj) == JS_TAG_OBJECT) {
+ p = NULL;
+ p1 = JS_VALUE_GET_OBJ(obj);
+ goto prototype_lookup;
+ } else {
+ switch(tag) {
+ case JS_TAG_NULL:
+ JS_FreeValue(ctx, val);
+ JS_ThrowTypeErrorAtom(ctx, "cannot set property '%s' of null", prop);
+ return -1;
+ case JS_TAG_UNDEFINED:
+ JS_FreeValue(ctx, val);
+ JS_ThrowTypeErrorAtom(ctx, "cannot set property '%s' of undefined", prop);
+ return -1;
+ default:
+ /* even on a primitive type we can have setters on the prototype */
+ p = NULL;
+ p1 = JS_VALUE_GET_OBJ(JS_GetPrototypePrimitive(ctx, obj));
+ goto prototype_lookup;
+ }
+ }
+ } else {
+ p = JS_VALUE_GET_OBJ(this_obj);
+ p1 = JS_VALUE_GET_OBJ(obj);
+ if (unlikely(p != p1))
+ goto retry2;
+ }
+
+ /* fast path if obj == this_obj */
+ retry:
+ prs = find_own_property(&pr, p1, prop);
+ if (prs) {
+ if (likely((prs->flags & (JS_PROP_TMASK | JS_PROP_WRITABLE |
+ JS_PROP_LENGTH)) == JS_PROP_WRITABLE)) {
+ /* fast case */
+ set_value(ctx, &pr->u.value, val);
+ return TRUE;
+ } else if (prs->flags & JS_PROP_LENGTH) {
+ assert(p->class_id == JS_CLASS_ARRAY);
+ assert(prop == JS_ATOM_length);
+ return set_array_length(ctx, p, val, flags);
+ } else if ((prs->flags & JS_PROP_TMASK) == JS_PROP_GETSET) {
+ return call_setter(ctx, pr->u.getset.setter, this_obj, val, flags);
+ } else if ((prs->flags & JS_PROP_TMASK) == JS_PROP_VARREF) {
+ /* JS_PROP_WRITABLE is always true for variable
+ references, but they are write protected in module name
+ spaces. */
+ if (p->class_id == JS_CLASS_MODULE_NS)
+ goto read_only_prop;
+ set_value(ctx, pr->u.var_ref->pvalue, val);
+ return TRUE;
+ } else if ((prs->flags & JS_PROP_TMASK) == JS_PROP_AUTOINIT) {
+ /* Instantiate property and retry (potentially useless) */
+ if (JS_AutoInitProperty(ctx, p, prop, pr, prs)) {
+ JS_FreeValue(ctx, val);
+ return -1;
+ }
+ goto retry;
+ } else {
+ goto read_only_prop;
+ }
+ }
+
+ for(;;) {
+ if (p1->is_exotic) {
+ if (p1->fast_array) {
+ if (__JS_AtomIsTaggedInt(prop)) {
+ uint32_t idx = __JS_AtomToUInt32(prop);
+ if (idx < p1->u.array.count) {
+ if (unlikely(p == p1))
+ return JS_SetPropertyValue(ctx, this_obj, JS_NewInt32(ctx, idx), val, flags);
+ else
+ break;
+ } else if (p1->class_id >= JS_CLASS_UINT8C_ARRAY &&
+ p1->class_id <= JS_CLASS_FLOAT64_ARRAY) {
+ goto typed_array_oob;
+ }
+ } else if (p1->class_id >= JS_CLASS_UINT8C_ARRAY &&
+ p1->class_id <= JS_CLASS_FLOAT64_ARRAY) {
+ ret = JS_AtomIsNumericIndex(ctx, prop);
+ if (ret != 0) {
+ if (ret < 0) {
+ JS_FreeValue(ctx, val);
+ return -1;
+ }
+ typed_array_oob:
+ /* must convert the argument even if out of bound access */
+ if (p1->class_id == JS_CLASS_BIG_INT64_ARRAY ||
+ p1->class_id == JS_CLASS_BIG_UINT64_ARRAY) {
+ int64_t v;
+ if (JS_ToBigInt64Free(ctx, &v, val))
+ return -1;
+ } else {
+ val = JS_ToNumberFree(ctx, val);
+ JS_FreeValue(ctx, val);
+ if (JS_IsException(val))
+ return -1;
+ }
+ return TRUE;
+ }
+ }
+ } else {
+ const JSClassExoticMethods *em = ctx->rt->class_array[p1->class_id].exotic;
+ if (em) {
+ JSValue obj1;
+ if (em->set_property) {
+ /* set_property can free the prototype */
+ obj1 = JS_DupValue(ctx, JS_MKPTR(JS_TAG_OBJECT, p1));
+ ret = em->set_property(ctx, obj1, prop,
+ val, this_obj, flags);
+ JS_FreeValue(ctx, obj1);
+ JS_FreeValue(ctx, val);
+ return ret;
+ }
+ if (em->get_own_property) {
+ /* get_own_property can free the prototype */
+ obj1 = JS_DupValue(ctx, JS_MKPTR(JS_TAG_OBJECT, p1));
+ ret = em->get_own_property(ctx, &desc,
+ obj1, prop);
+ JS_FreeValue(ctx, obj1);
+ if (ret < 0) {
+ JS_FreeValue(ctx, val);
+ return ret;
+ }
+ if (ret) {
+ if (desc.flags & JS_PROP_GETSET) {
+ JSObject *setter;
+ if (JS_IsUndefined(desc.setter))
+ setter = NULL;
+ else
+ setter = JS_VALUE_GET_OBJ(desc.setter);
+ ret = call_setter(ctx, setter, this_obj, val, flags);
+ JS_FreeValue(ctx, desc.getter);
+ JS_FreeValue(ctx, desc.setter);
+ return ret;
+ } else {
+ JS_FreeValue(ctx, desc.value);
+ if (!(desc.flags & JS_PROP_WRITABLE))
+ goto read_only_prop;
+ if (likely(p == p1)) {
+ ret = JS_DefineProperty(ctx, this_obj, prop, val,
+ JS_UNDEFINED, JS_UNDEFINED,
+ JS_PROP_HAS_VALUE);
+ JS_FreeValue(ctx, val);
+ return ret;
+ } else {
+ break;
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ p1 = p1->shape->proto;
+ prototype_lookup:
+ if (!p1)
+ break;
+
+ retry2:
+ prs = find_own_property(&pr, p1, prop);
+ if (prs) {
+ if ((prs->flags & JS_PROP_TMASK) == JS_PROP_GETSET) {
+ return call_setter(ctx, pr->u.getset.setter, this_obj, val, flags);
+ } else if ((prs->flags & JS_PROP_TMASK) == JS_PROP_AUTOINIT) {
+ /* Instantiate property and retry (potentially useless) */
+ if (JS_AutoInitProperty(ctx, p1, prop, pr, prs))
+ return -1;
+ goto retry2;
+ } else if (!(prs->flags & JS_PROP_WRITABLE)) {
+ goto read_only_prop;
+ }
+ }
+ }
+
+ if (unlikely(flags & JS_PROP_NO_ADD)) {
+ JS_FreeValue(ctx, val);
+ JS_ThrowReferenceErrorNotDefined(ctx, prop);
+ return -1;
+ }
+
+ if (unlikely(!p)) {
+ JS_FreeValue(ctx, val);
+ return JS_ThrowTypeErrorOrFalse(ctx, flags, "not an object");
+ }
+
+ if (unlikely(!p->extensible)) {
+ JS_FreeValue(ctx, val);
+ return JS_ThrowTypeErrorOrFalse(ctx, flags, "object is not extensible");
+ }
+
+ if (likely(p == JS_VALUE_GET_OBJ(obj))) {
+ if (p->is_exotic) {
+ if (p->class_id == JS_CLASS_ARRAY && p->fast_array &&
+ __JS_AtomIsTaggedInt(prop)) {
+ uint32_t idx = __JS_AtomToUInt32(prop);
+ if (idx == p->u.array.count) {
+ /* fast case */
+ return add_fast_array_element(ctx, p, val, flags);
+ } else {
+ goto generic_create_prop;
+ }
+ } else {
+ goto generic_create_prop;
+ }
+ } else {
+ pr = add_property(ctx, p, prop, JS_PROP_C_W_E);
+ if (unlikely(!pr)) {
+ JS_FreeValue(ctx, val);
+ return -1;
+ }
+ pr->u.value = val;
+ return TRUE;
+ }
+ } else {
+ /* generic case: modify the property in this_obj if it already exists */
+ ret = JS_GetOwnPropertyInternal(ctx, &desc, p, prop);
+ if (ret < 0) {
+ JS_FreeValue(ctx, val);
+ return ret;
+ }
+ if (ret) {
+ if (desc.flags & JS_PROP_GETSET) {
+ JS_FreeValue(ctx, desc.getter);
+ JS_FreeValue(ctx, desc.setter);
+ JS_FreeValue(ctx, val);
+ return JS_ThrowTypeErrorOrFalse(ctx, flags, "setter is forbidden");
+ } else {
+ JS_FreeValue(ctx, desc.value);
+ if (!(desc.flags & JS_PROP_WRITABLE) ||
+ p->class_id == JS_CLASS_MODULE_NS) {
+ read_only_prop:
+ JS_FreeValue(ctx, val);
+ return JS_ThrowTypeErrorReadOnly(ctx, flags, prop);
+ }
+ }
+ ret = JS_DefineProperty(ctx, this_obj, prop, val,
+ JS_UNDEFINED, JS_UNDEFINED,
+ JS_PROP_HAS_VALUE);
+ JS_FreeValue(ctx, val);
+ return ret;
+ } else {
+ generic_create_prop:
+ ret = JS_CreateProperty(ctx, p, prop, val, JS_UNDEFINED, JS_UNDEFINED,
+ flags |
+ JS_PROP_HAS_VALUE |
+ JS_PROP_HAS_ENUMERABLE |
+ JS_PROP_HAS_WRITABLE |
+ JS_PROP_HAS_CONFIGURABLE |
+ JS_PROP_C_W_E);
+ JS_FreeValue(ctx, val);
+ return ret;
+ }
+ }
+}
+
+/* flags can be JS_PROP_THROW or JS_PROP_THROW_STRICT */
+static int JS_SetPropertyValue(JSContext *ctx, JSValueConst this_obj,
+ JSValue prop, JSValue val, int flags)
+{
+ if (likely(JS_VALUE_GET_TAG(this_obj) == JS_TAG_OBJECT &&
+ JS_VALUE_GET_TAG(prop) == JS_TAG_INT)) {
+ JSObject *p;
+ uint32_t idx;
+ double d;
+ int32_t v;
+
+ /* fast path for array access */
+ p = JS_VALUE_GET_OBJ(this_obj);
+ idx = JS_VALUE_GET_INT(prop);
+ switch(p->class_id) {
+ case JS_CLASS_ARRAY:
+ if (unlikely(idx >= (uint32_t)p->u.array.count)) {
+ JSObject *p1;
+ JSShape *sh1;
+
+ /* fast path to add an element to the array */
+ if (idx != (uint32_t)p->u.array.count ||
+ !p->fast_array || !p->extensible)
+ goto slow_path;
+ /* check if prototype chain has a numeric property */
+ p1 = p->shape->proto;
+ while (p1 != NULL) {
+ sh1 = p1->shape;
+ if (p1->class_id == JS_CLASS_ARRAY) {
+ if (unlikely(!p1->fast_array))
+ goto slow_path;
+ } else if (p1->class_id == JS_CLASS_OBJECT) {
+ if (unlikely(sh1->has_small_array_index))
+ goto slow_path;
+ } else {
+ goto slow_path;
+ }
+ p1 = sh1->proto;
+ }
+ /* add element */
+ return add_fast_array_element(ctx, p, val, flags);
+ }
+ set_value(ctx, &p->u.array.u.values[idx], val);
+ break;
+ case JS_CLASS_ARGUMENTS:
+ if (unlikely(idx >= (uint32_t)p->u.array.count))
+ goto slow_path;
+ set_value(ctx, &p->u.array.u.values[idx], val);
+ break;
+ case JS_CLASS_UINT8C_ARRAY:
+ if (JS_ToUint8ClampFree(ctx, &v, val))
+ return -1;
+ /* Note: the conversion can detach the typed array, so the
+ array bound check must be done after */
+ if (unlikely(idx >= (uint32_t)p->u.array.count))
+ goto ta_out_of_bound;
+ p->u.array.u.uint8_ptr[idx] = v;
+ break;
+ case JS_CLASS_INT8_ARRAY:
+ case JS_CLASS_UINT8_ARRAY:
+ if (JS_ToInt32Free(ctx, &v, val))
+ return -1;
+ if (unlikely(idx >= (uint32_t)p->u.array.count))
+ goto ta_out_of_bound;
+ p->u.array.u.uint8_ptr[idx] = v;
+ break;
+ case JS_CLASS_INT16_ARRAY:
+ case JS_CLASS_UINT16_ARRAY:
+ if (JS_ToInt32Free(ctx, &v, val))
+ return -1;
+ if (unlikely(idx >= (uint32_t)p->u.array.count))
+ goto ta_out_of_bound;
+ p->u.array.u.uint16_ptr[idx] = v;
+ break;
+ case JS_CLASS_INT32_ARRAY:
+ case JS_CLASS_UINT32_ARRAY:
+ if (JS_ToInt32Free(ctx, &v, val))
+ return -1;
+ if (unlikely(idx >= (uint32_t)p->u.array.count))
+ goto ta_out_of_bound;
+ p->u.array.u.uint32_ptr[idx] = v;
+ break;
+ case JS_CLASS_BIG_INT64_ARRAY:
+ case JS_CLASS_BIG_UINT64_ARRAY:
+ /* XXX: need specific conversion function */
+ {
+ int64_t v;
+ if (JS_ToBigInt64Free(ctx, &v, val))
+ return -1;
+ if (unlikely(idx >= (uint32_t)p->u.array.count))
+ goto ta_out_of_bound;
+ p->u.array.u.uint64_ptr[idx] = v;
+ }
+ break;
+ case JS_CLASS_FLOAT32_ARRAY:
+ if (JS_ToFloat64Free(ctx, &d, val))
+ return -1;
+ if (unlikely(idx >= (uint32_t)p->u.array.count))
+ goto ta_out_of_bound;
+ p->u.array.u.float_ptr[idx] = d;
+ break;
+ case JS_CLASS_FLOAT64_ARRAY:
+ if (JS_ToFloat64Free(ctx, &d, val))
+ return -1;
+ if (unlikely(idx >= (uint32_t)p->u.array.count)) {
+ ta_out_of_bound:
+ return TRUE;
+ }
+ p->u.array.u.double_ptr[idx] = d;
+ break;
+ default:
+ goto slow_path;
+ }
+ return TRUE;
+ } else {
+ JSAtom atom;
+ int ret;
+ slow_path:
+ atom = JS_ValueToAtom(ctx, prop);
+ JS_FreeValue(ctx, prop);
+ if (unlikely(atom == JS_ATOM_NULL)) {
+ JS_FreeValue(ctx, val);
+ return -1;
+ }
+ ret = JS_SetPropertyInternal(ctx, this_obj, atom, val, this_obj, flags);
+ JS_FreeAtom(ctx, atom);
+ return ret;
+ }
+}
+
+int JS_SetPropertyUint32(JSContext *ctx, JSValueConst this_obj,
+ uint32_t idx, JSValue val)
+{
+ return JS_SetPropertyValue(ctx, this_obj, JS_NewUint32(ctx, idx), val,
+ JS_PROP_THROW);
+}
+
+int JS_SetPropertyInt64(JSContext *ctx, JSValueConst this_obj,
+ int64_t idx, JSValue val)
+{
+ JSAtom prop;
+ int res;
+
+ if ((uint64_t)idx <= INT32_MAX) {
+ /* fast path for fast arrays */
+ return JS_SetPropertyValue(ctx, this_obj, JS_NewInt32(ctx, idx), val,
+ JS_PROP_THROW);
+ }
+ prop = JS_NewAtomInt64(ctx, idx);
+ if (prop == JS_ATOM_NULL) {
+ JS_FreeValue(ctx, val);
+ return -1;
+ }
+ res = JS_SetProperty(ctx, this_obj, prop, val);
+ JS_FreeAtom(ctx, prop);
+ return res;
+}
+
+int JS_SetPropertyStr(JSContext *ctx, JSValueConst this_obj,
+ const char *prop, JSValue val)
+{
+ JSAtom atom;
+ int ret;
+ atom = JS_NewAtom(ctx, prop);
+ ret = JS_SetPropertyInternal(ctx, this_obj, atom, val, this_obj, JS_PROP_THROW);
+ JS_FreeAtom(ctx, atom);
+ return ret;
+}
+
+/* compute the property flags. For each flag: (JS_PROP_HAS_x forces
+ it, otherwise def_flags is used)
+ Note: makes assumption about the bit pattern of the flags
+*/
+static int get_prop_flags(int flags, int def_flags)
+{
+ int mask;
+ mask = (flags >> JS_PROP_HAS_SHIFT) & JS_PROP_C_W_E;
+ return (flags & mask) | (def_flags & ~mask);
+}
+
+static int JS_CreateProperty(JSContext *ctx, JSObject *p,
+ JSAtom prop, JSValueConst val,
+ JSValueConst getter, JSValueConst setter,
+ int flags)
+{
+ JSProperty *pr;
+ int ret, prop_flags;
+
+ /* add a new property or modify an existing exotic one */
+ if (p->is_exotic) {
+ if (p->class_id == JS_CLASS_ARRAY) {
+ uint32_t idx, len;
+
+ if (p->fast_array) {
+ if (__JS_AtomIsTaggedInt(prop)) {
+ idx = __JS_AtomToUInt32(prop);
+ if (idx == p->u.array.count) {
+ if (!p->extensible)
+ goto not_extensible;
+ if (flags & (JS_PROP_HAS_GET | JS_PROP_HAS_SET))
+ goto convert_to_array;
+ prop_flags = get_prop_flags(flags, 0);
+ if (prop_flags != JS_PROP_C_W_E)
+ goto convert_to_array;
+ return add_fast_array_element(ctx, p,
+ JS_DupValue(ctx, val), flags);
+ } else {
+ goto convert_to_array;
+ }
+ } else if (JS_AtomIsArrayIndex(ctx, &idx, prop)) {
+ /* convert the fast array to normal array */
+ convert_to_array:
+ if (convert_fast_array_to_array(ctx, p))
+ return -1;
+ goto generic_array;
+ }
+ } else if (JS_AtomIsArrayIndex(ctx, &idx, prop)) {
+ JSProperty *plen;
+ JSShapeProperty *pslen;
+ generic_array:
+ /* update the length field */
+ plen = &p->prop[0];
+ JS_ToUint32(ctx, &len, plen->u.value);
+ if ((idx + 1) > len) {
+ pslen = get_shape_prop(p->shape);
+ if (unlikely(!(pslen->flags & JS_PROP_WRITABLE)))
+ return JS_ThrowTypeErrorReadOnly(ctx, flags, JS_ATOM_length);
+ /* XXX: should update the length after defining
+ the property */
+ len = idx + 1;
+ set_value(ctx, &plen->u.value, JS_NewUint32(ctx, len));
+ }
+ }
+ } else if (p->class_id >= JS_CLASS_UINT8C_ARRAY &&
+ p->class_id <= JS_CLASS_FLOAT64_ARRAY) {
+ ret = JS_AtomIsNumericIndex(ctx, prop);
+ if (ret != 0) {
+ if (ret < 0)
+ return -1;
+ return JS_ThrowTypeErrorOrFalse(ctx, flags, "cannot create numeric index in typed array");
+ }
+ } else if (!(flags & JS_PROP_NO_EXOTIC)) {
+ const JSClassExoticMethods *em = ctx->rt->class_array[p->class_id].exotic;
+ if (em) {
+ if (em->define_own_property) {
+ return em->define_own_property(ctx, JS_MKPTR(JS_TAG_OBJECT, p),
+ prop, val, getter, setter, flags);
+ }
+ ret = JS_IsExtensible(ctx, JS_MKPTR(JS_TAG_OBJECT, p));
+ if (ret < 0)
+ return -1;
+ if (!ret)
+ goto not_extensible;
+ }
+ }
+ }
+
+ if (!p->extensible) {
+ not_extensible:
+ return JS_ThrowTypeErrorOrFalse(ctx, flags, "object is not extensible");
+ }
+
+ if (flags & (JS_PROP_HAS_GET | JS_PROP_HAS_SET)) {
+ prop_flags = (flags & (JS_PROP_CONFIGURABLE | JS_PROP_ENUMERABLE)) |
+ JS_PROP_GETSET;
+ } else {
+ prop_flags = flags & JS_PROP_C_W_E;
+ }
+ pr = add_property(ctx, p, prop, prop_flags);
+ if (unlikely(!pr))
+ return -1;
+ if (flags & (JS_PROP_HAS_GET | JS_PROP_HAS_SET)) {
+ pr->u.getset.getter = NULL;
+ if ((flags & JS_PROP_HAS_GET) && JS_IsFunction(ctx, getter)) {
+ pr->u.getset.getter =
+ JS_VALUE_GET_OBJ(JS_DupValue(ctx, getter));
+ }
+ pr->u.getset.setter = NULL;
+ if ((flags & JS_PROP_HAS_SET) && JS_IsFunction(ctx, setter)) {
+ pr->u.getset.setter =
+ JS_VALUE_GET_OBJ(JS_DupValue(ctx, setter));
+ }
+ } else {
+ if (flags & JS_PROP_HAS_VALUE) {
+ pr->u.value = JS_DupValue(ctx, val);
+ } else {
+ pr->u.value = JS_UNDEFINED;
+ }
+ }
+ return TRUE;
+}
+
+/* return FALSE if not OK */
+static BOOL check_define_prop_flags(int prop_flags, int flags)
+{
+ BOOL has_accessor, is_getset;
+
+ if (!(prop_flags & JS_PROP_CONFIGURABLE)) {
+ if ((flags & (JS_PROP_HAS_CONFIGURABLE | JS_PROP_CONFIGURABLE)) ==
+ (JS_PROP_HAS_CONFIGURABLE | JS_PROP_CONFIGURABLE)) {
+ return FALSE;
+ }
+ if ((flags & JS_PROP_HAS_ENUMERABLE) &&
+ (flags & JS_PROP_ENUMERABLE) != (prop_flags & JS_PROP_ENUMERABLE))
+ return FALSE;
+ }
+ if (flags & (JS_PROP_HAS_VALUE | JS_PROP_HAS_WRITABLE |
+ JS_PROP_HAS_GET | JS_PROP_HAS_SET)) {
+ if (!(prop_flags & JS_PROP_CONFIGURABLE)) {
+ has_accessor = ((flags & (JS_PROP_HAS_GET | JS_PROP_HAS_SET)) != 0);
+ is_getset = ((prop_flags & JS_PROP_TMASK) == JS_PROP_GETSET);
+ if (has_accessor != is_getset)
+ return FALSE;
+ if (!has_accessor && !is_getset && !(prop_flags & JS_PROP_WRITABLE)) {
+ /* not writable: cannot set the writable bit */
+ if ((flags & (JS_PROP_HAS_WRITABLE | JS_PROP_WRITABLE)) ==
+ (JS_PROP_HAS_WRITABLE | JS_PROP_WRITABLE))
+ return FALSE;
+ }
+ }
+ }
+ return TRUE;
+}
+
+/* ensure that the shape can be safely modified */
+static int js_shape_prepare_update(JSContext *ctx, JSObject *p,
+ JSShapeProperty **pprs)
+{
+ JSShape *sh;
+ uint32_t idx = 0; /* prevent warning */
+
+ sh = p->shape;
+ if (sh->is_hashed) {
+ if (sh->header.ref_count != 1) {
+ if (pprs)
+ idx = *pprs - get_shape_prop(sh);
+ /* clone the shape (the resulting one is no longer hashed) */
+ sh = js_clone_shape(ctx, sh);
+ if (!sh)
+ return -1;
+ js_free_shape(ctx->rt, p->shape);
+ p->shape = sh;
+ if (pprs)
+ *pprs = get_shape_prop(sh) + idx;
+ } else {
+ js_shape_hash_unlink(ctx->rt, sh);
+ sh->is_hashed = FALSE;
+ }
+ }
+ return 0;
+}
+
+static int js_update_property_flags(JSContext *ctx, JSObject *p,
+ JSShapeProperty **pprs, int flags)
+{
+ if (flags != (*pprs)->flags) {
+ if (js_shape_prepare_update(ctx, p, pprs))
+ return -1;
+ (*pprs)->flags = flags;
+ }
+ return 0;
+}
+
+/* allowed flags:
+ JS_PROP_CONFIGURABLE, JS_PROP_WRITABLE, JS_PROP_ENUMERABLE
+ JS_PROP_HAS_GET, JS_PROP_HAS_SET, JS_PROP_HAS_VALUE,
+ JS_PROP_HAS_CONFIGURABLE, JS_PROP_HAS_WRITABLE, JS_PROP_HAS_ENUMERABLE,
+ JS_PROP_THROW, JS_PROP_NO_EXOTIC.
+ If JS_PROP_THROW is set, return an exception instead of FALSE.
+ if JS_PROP_NO_EXOTIC is set, do not call the exotic
+ define_own_property callback.
+ return -1 (exception), FALSE or TRUE.
+*/
+int JS_DefineProperty(JSContext *ctx, JSValueConst this_obj,
+ JSAtom prop, JSValueConst val,
+ JSValueConst getter, JSValueConst setter, int flags)
+{
+ JSObject *p;
+ JSShapeProperty *prs;
+ JSProperty *pr;
+ int mask, res;
+
+ if (JS_VALUE_GET_TAG(this_obj) != JS_TAG_OBJECT) {
+ JS_ThrowTypeErrorNotAnObject(ctx);
+ return -1;
+ }
+ p = JS_VALUE_GET_OBJ(this_obj);
+
+ redo_prop_update:
+ prs = find_own_property(&pr, p, prop);
+ if (prs) {
+ /* the range of the Array length property is always tested before */
+ if ((prs->flags & JS_PROP_LENGTH) && (flags & JS_PROP_HAS_VALUE)) {
+ uint32_t array_length;
+ if (JS_ToArrayLengthFree(ctx, &array_length,
+ JS_DupValue(ctx, val), FALSE)) {
+ return -1;
+ }
+ /* this code relies on the fact that Uint32 are never allocated */
+ val = (JSValueConst)JS_NewUint32(ctx, array_length);
+ /* prs may have been modified */
+ prs = find_own_property(&pr, p, prop);
+ assert(prs != NULL);
+ }
+ /* property already exists */
+ if (!check_define_prop_flags(prs->flags, flags)) {
+ not_configurable:
+ return JS_ThrowTypeErrorOrFalse(ctx, flags, "property is not configurable");
+ }
+
+ if ((prs->flags & JS_PROP_TMASK) == JS_PROP_AUTOINIT) {
+ /* Instantiate property and retry */
+ if (JS_AutoInitProperty(ctx, p, prop, pr, prs))
+ return -1;
+ goto redo_prop_update;
+ }
+
+ if (flags & (JS_PROP_HAS_VALUE | JS_PROP_HAS_WRITABLE |
+ JS_PROP_HAS_GET | JS_PROP_HAS_SET)) {
+ if (flags & (JS_PROP_HAS_GET | JS_PROP_HAS_SET)) {
+ JSObject *new_getter, *new_setter;
+
+ if (JS_IsFunction(ctx, getter)) {
+ new_getter = JS_VALUE_GET_OBJ(getter);
+ } else {
+ new_getter = NULL;
+ }
+ if (JS_IsFunction(ctx, setter)) {
+ new_setter = JS_VALUE_GET_OBJ(setter);
+ } else {
+ new_setter = NULL;
+ }
+
+ if ((prs->flags & JS_PROP_TMASK) != JS_PROP_GETSET) {
+ if (js_shape_prepare_update(ctx, p, &prs))
+ return -1;
+ /* convert to getset */
+ if ((prs->flags & JS_PROP_TMASK) == JS_PROP_VARREF) {
+ free_var_ref(ctx->rt, pr->u.var_ref);
+ } else {
+ JS_FreeValue(ctx, pr->u.value);
+ }
+ prs->flags = (prs->flags &
+ (JS_PROP_CONFIGURABLE | JS_PROP_ENUMERABLE)) |
+ JS_PROP_GETSET;
+ pr->u.getset.getter = NULL;
+ pr->u.getset.setter = NULL;
+ } else {
+ if (!(prs->flags & JS_PROP_CONFIGURABLE)) {
+ if ((flags & JS_PROP_HAS_GET) &&
+ new_getter != pr->u.getset.getter) {
+ goto not_configurable;
+ }
+ if ((flags & JS_PROP_HAS_SET) &&
+ new_setter != pr->u.getset.setter) {
+ goto not_configurable;
+ }
+ }
+ }
+ if (flags & JS_PROP_HAS_GET) {
+ if (pr->u.getset.getter)
+ JS_FreeValue(ctx, JS_MKPTR(JS_TAG_OBJECT, pr->u.getset.getter));
+ if (new_getter)
+ JS_DupValue(ctx, getter);
+ pr->u.getset.getter = new_getter;
+ }
+ if (flags & JS_PROP_HAS_SET) {
+ if (pr->u.getset.setter)
+ JS_FreeValue(ctx, JS_MKPTR(JS_TAG_OBJECT, pr->u.getset.setter));
+ if (new_setter)
+ JS_DupValue(ctx, setter);
+ pr->u.getset.setter = new_setter;
+ }
+ } else {
+ if ((prs->flags & JS_PROP_TMASK) == JS_PROP_GETSET) {
+ /* convert to data descriptor */
+ if (js_shape_prepare_update(ctx, p, &prs))
+ return -1;
+ if (pr->u.getset.getter)
+ JS_FreeValue(ctx, JS_MKPTR(JS_TAG_OBJECT, pr->u.getset.getter));
+ if (pr->u.getset.setter)
+ JS_FreeValue(ctx, JS_MKPTR(JS_TAG_OBJECT, pr->u.getset.setter));
+ prs->flags &= ~(JS_PROP_TMASK | JS_PROP_WRITABLE);
+ pr->u.value = JS_UNDEFINED;
+ } else if ((prs->flags & JS_PROP_TMASK) == JS_PROP_VARREF) {
+ /* Note: JS_PROP_VARREF is always writable */
+ } else {
+ if ((prs->flags & (JS_PROP_CONFIGURABLE | JS_PROP_WRITABLE)) == 0 &&
+ (flags & JS_PROP_HAS_VALUE)) {
+ if (!js_same_value(ctx, val, pr->u.value)) {
+ goto not_configurable;
+ } else {
+ return TRUE;
+ }
+ }
+ }
+ if ((prs->flags & JS_PROP_TMASK) == JS_PROP_VARREF) {
+ if (flags & JS_PROP_HAS_VALUE) {
+ if (p->class_id == JS_CLASS_MODULE_NS) {
+ /* JS_PROP_WRITABLE is always true for variable
+ references, but they are write protected in module name
+ spaces. */
+ if (!js_same_value(ctx, val, *pr->u.var_ref->pvalue))
+ goto not_configurable;
+ } else {
+ /* update the reference */
+ set_value(ctx, pr->u.var_ref->pvalue,
+ JS_DupValue(ctx, val));
+ }
+ }
+ /* if writable is set to false, no longer a
+ reference (for mapped arguments) */
+ if ((flags & (JS_PROP_HAS_WRITABLE | JS_PROP_WRITABLE)) == JS_PROP_HAS_WRITABLE) {
+ JSValue val1;
+ if (p->class_id == JS_CLASS_MODULE_NS) {
+ return JS_ThrowTypeErrorOrFalse(ctx, flags, "module namespace properties have writable = false");
+ }
+ if (js_shape_prepare_update(ctx, p, &prs))
+ return -1;
+ val1 = JS_DupValue(ctx, *pr->u.var_ref->pvalue);
+ free_var_ref(ctx->rt, pr->u.var_ref);
+ pr->u.value = val1;
+ prs->flags &= ~(JS_PROP_TMASK | JS_PROP_WRITABLE);
+ }
+ } else if (prs->flags & JS_PROP_LENGTH) {
+ if (flags & JS_PROP_HAS_VALUE) {
+ /* Note: no JS code is executable because
+ 'val' is guaranted to be a Uint32 */
+ res = set_array_length(ctx, p, JS_DupValue(ctx, val),
+ flags);
+ } else {
+ res = TRUE;
+ }
+ /* still need to reset the writable flag if
+ needed. The JS_PROP_LENGTH is kept because the
+ Uint32 test is still done if the length
+ property is read-only. */
+ if ((flags & (JS_PROP_HAS_WRITABLE | JS_PROP_WRITABLE)) ==
+ JS_PROP_HAS_WRITABLE) {
+ prs = get_shape_prop(p->shape);
+ if (js_update_property_flags(ctx, p, &prs,
+ prs->flags & ~JS_PROP_WRITABLE))
+ return -1;
+ }
+ return res;
+ } else {
+ if (flags & JS_PROP_HAS_VALUE) {
+ JS_FreeValue(ctx, pr->u.value);
+ pr->u.value = JS_DupValue(ctx, val);
+ }
+ if (flags & JS_PROP_HAS_WRITABLE) {
+ if (js_update_property_flags(ctx, p, &prs,
+ (prs->flags & ~JS_PROP_WRITABLE) |
+ (flags & JS_PROP_WRITABLE)))
+ return -1;
+ }
+ }
+ }
+ }
+ mask = 0;
+ if (flags & JS_PROP_HAS_CONFIGURABLE)
+ mask |= JS_PROP_CONFIGURABLE;
+ if (flags & JS_PROP_HAS_ENUMERABLE)
+ mask |= JS_PROP_ENUMERABLE;
+ if (js_update_property_flags(ctx, p, &prs,
+ (prs->flags & ~mask) | (flags & mask)))
+ return -1;
+ return TRUE;
+ }
+
+ /* handle modification of fast array elements */
+ if (p->fast_array) {
+ uint32_t idx;
+ uint32_t prop_flags;
+ if (p->class_id == JS_CLASS_ARRAY) {
+ if (__JS_AtomIsTaggedInt(prop)) {
+ idx = __JS_AtomToUInt32(prop);
+ if (idx < p->u.array.count) {
+ prop_flags = get_prop_flags(flags, JS_PROP_C_W_E);
+ if (prop_flags != JS_PROP_C_W_E)
+ goto convert_to_slow_array;
+ if (flags & (JS_PROP_HAS_GET | JS_PROP_HAS_SET)) {
+ convert_to_slow_array:
+ if (convert_fast_array_to_array(ctx, p))
+ return -1;
+ else
+ goto redo_prop_update;
+ }
+ if (flags & JS_PROP_HAS_VALUE) {
+ set_value(ctx, &p->u.array.u.values[idx], JS_DupValue(ctx, val));
+ }
+ return TRUE;
+ }
+ }
+ } else if (p->class_id >= JS_CLASS_UINT8C_ARRAY &&
+ p->class_id <= JS_CLASS_FLOAT64_ARRAY) {
+ JSValue num;
+ int ret;
+
+ if (!__JS_AtomIsTaggedInt(prop)) {
+ /* slow path with to handle all numeric indexes */
+ num = JS_AtomIsNumericIndex1(ctx, prop);
+ if (JS_IsUndefined(num))
+ goto typed_array_done;
+ if (JS_IsException(num))
+ return -1;
+ ret = JS_NumberIsInteger(ctx, num);
+ if (ret < 0) {
+ JS_FreeValue(ctx, num);
+ return -1;
+ }
+ if (!ret) {
+ JS_FreeValue(ctx, num);
+ return JS_ThrowTypeErrorOrFalse(ctx, flags, "non integer index in typed array");
+ }
+ ret = JS_NumberIsNegativeOrMinusZero(ctx, num);
+ JS_FreeValue(ctx, num);
+ if (ret) {
+ return JS_ThrowTypeErrorOrFalse(ctx, flags, "negative index in typed array");
+ }
+ if (!__JS_AtomIsTaggedInt(prop))
+ goto typed_array_oob;
+ }
+ idx = __JS_AtomToUInt32(prop);
+ /* if the typed array is detached, p->u.array.count = 0 */
+ if (idx >= p->u.array.count) {
+ typed_array_oob:
+ return JS_ThrowTypeErrorOrFalse(ctx, flags, "out-of-bound index in typed array");
+ }
+ prop_flags = get_prop_flags(flags, JS_PROP_ENUMERABLE | JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE);
+ if (flags & (JS_PROP_HAS_GET | JS_PROP_HAS_SET) ||
+ prop_flags != (JS_PROP_ENUMERABLE | JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE)) {
+ return JS_ThrowTypeErrorOrFalse(ctx, flags, "invalid descriptor flags");
+ }
+ if (flags & JS_PROP_HAS_VALUE) {
+ return JS_SetPropertyValue(ctx, this_obj, JS_NewInt32(ctx, idx), JS_DupValue(ctx, val), flags);
+ }
+ return TRUE;
+ typed_array_done: ;
+ }
+ }
+
+ return JS_CreateProperty(ctx, p, prop, val, getter, setter, flags);
+}
+
+static int JS_DefineAutoInitProperty(JSContext *ctx, JSValueConst this_obj,
+ JSAtom prop, JSAutoInitIDEnum id,
+ void *opaque, int flags)
+{
+ JSObject *p;
+ JSProperty *pr;
+
+ if (JS_VALUE_GET_TAG(this_obj) != JS_TAG_OBJECT)
+ return FALSE;
+
+ p = JS_VALUE_GET_OBJ(this_obj);
+
+ if (find_own_property(&pr, p, prop)) {
+ /* property already exists */
+ abort();
+ return FALSE;
+ }
+
+ /* Specialized CreateProperty */
+ pr = add_property(ctx, p, prop, (flags & JS_PROP_C_W_E) | JS_PROP_AUTOINIT);
+ if (unlikely(!pr))
+ return -1;
+ pr->u.init.realm_and_id = (uintptr_t)JS_DupContext(ctx);
+ assert((pr->u.init.realm_and_id & 3) == 0);
+ assert(id <= 3);
+ pr->u.init.realm_and_id |= id;
+ pr->u.init.opaque = opaque;
+ return TRUE;
+}
+
+/* shortcut to add or redefine a new property value */
+int JS_DefinePropertyValue(JSContext *ctx, JSValueConst this_obj,
+ JSAtom prop, JSValue val, int flags)
+{
+ int ret;
+ ret = JS_DefineProperty(ctx, this_obj, prop, val, JS_UNDEFINED, JS_UNDEFINED,
+ flags | JS_PROP_HAS_VALUE | JS_PROP_HAS_CONFIGURABLE | JS_PROP_HAS_WRITABLE | JS_PROP_HAS_ENUMERABLE);
+ JS_FreeValue(ctx, val);
+ return ret;
+}
+
+int JS_DefinePropertyValueValue(JSContext *ctx, JSValueConst this_obj,
+ JSValue prop, JSValue val, int flags)
+{
+ JSAtom atom;
+ int ret;
+ atom = JS_ValueToAtom(ctx, prop);
+ JS_FreeValue(ctx, prop);
+ if (unlikely(atom == JS_ATOM_NULL)) {
+ JS_FreeValue(ctx, val);
+ return -1;
+ }
+ ret = JS_DefinePropertyValue(ctx, this_obj, atom, val, flags);
+ JS_FreeAtom(ctx, atom);
+ return ret;
+}
+
+int JS_DefinePropertyValueUint32(JSContext *ctx, JSValueConst this_obj,
+ uint32_t idx, JSValue val, int flags)
+{
+ return JS_DefinePropertyValueValue(ctx, this_obj, JS_NewUint32(ctx, idx),
+ val, flags);
+}
+
+int JS_DefinePropertyValueInt64(JSContext *ctx, JSValueConst this_obj,
+ int64_t idx, JSValue val, int flags)
+{
+ return JS_DefinePropertyValueValue(ctx, this_obj, JS_NewInt64(ctx, idx),
+ val, flags);
+}
+
+int JS_DefinePropertyValueStr(JSContext *ctx, JSValueConst this_obj,
+ const char *prop, JSValue val, int flags)
+{
+ JSAtom atom;
+ int ret;
+ atom = JS_NewAtom(ctx, prop);
+ ret = JS_DefinePropertyValue(ctx, this_obj, atom, val, flags);
+ JS_FreeAtom(ctx, atom);
+ return ret;
+}
+
+/* shortcut to add getter & setter */
+int JS_DefinePropertyGetSet(JSContext *ctx, JSValueConst this_obj,
+ JSAtom prop, JSValue getter, JSValue setter,
+ int flags)
+{
+ int ret;
+ ret = JS_DefineProperty(ctx, this_obj, prop, JS_UNDEFINED, getter, setter,
+ flags | JS_PROP_HAS_GET | JS_PROP_HAS_SET |
+ JS_PROP_HAS_CONFIGURABLE | JS_PROP_HAS_ENUMERABLE);
+ JS_FreeValue(ctx, getter);
+ JS_FreeValue(ctx, setter);
+ return ret;
+}
+
+static int JS_CreateDataPropertyUint32(JSContext *ctx, JSValueConst this_obj,
+ int64_t idx, JSValue val, int flags)
+{
+ return JS_DefinePropertyValueValue(ctx, this_obj, JS_NewInt64(ctx, idx),
+ val, flags | JS_PROP_CONFIGURABLE |
+ JS_PROP_ENUMERABLE | JS_PROP_WRITABLE);
+}
+
+
+/* return TRUE if 'obj' has a non empty 'name' string */
+static BOOL js_object_has_name(JSContext *ctx, JSValueConst obj)
+{
+ JSProperty *pr;
+ JSShapeProperty *prs;
+ JSValueConst val;
+ JSString *p;
+
+ prs = find_own_property(&pr, JS_VALUE_GET_OBJ(obj), JS_ATOM_name);
+ if (!prs)
+ return FALSE;
+ if ((prs->flags & JS_PROP_TMASK) != JS_PROP_NORMAL)
+ return TRUE;
+ val = pr->u.value;
+ if (JS_VALUE_GET_TAG(val) != JS_TAG_STRING)
+ return TRUE;
+ p = JS_VALUE_GET_STRING(val);
+ return (p->len != 0);
+}
+
+static int JS_DefineObjectName(JSContext *ctx, JSValueConst obj,
+ JSAtom name, int flags)
+{
+ if (name != JS_ATOM_NULL
+ && JS_IsObject(obj)
+ && !js_object_has_name(ctx, obj)
+ && JS_DefinePropertyValue(ctx, obj, JS_ATOM_name, JS_AtomToString(ctx, name), flags) < 0) {
+ return -1;
+ }
+ return 0;
+}
+
+static int JS_DefineObjectNameComputed(JSContext *ctx, JSValueConst obj,
+ JSValueConst str, int flags)
+{
+ if (JS_IsObject(obj) &&
+ !js_object_has_name(ctx, obj)) {
+ JSAtom prop;
+ JSValue name_str;
+ prop = JS_ValueToAtom(ctx, str);
+ if (prop == JS_ATOM_NULL)
+ return -1;
+ name_str = js_get_function_name(ctx, prop);
+ JS_FreeAtom(ctx, prop);
+ if (JS_IsException(name_str))
+ return -1;
+ if (JS_DefinePropertyValue(ctx, obj, JS_ATOM_name, name_str, flags) < 0)
+ return -1;
+ }
+ return 0;
+}
+
+#define DEFINE_GLOBAL_LEX_VAR (1 << 7)
+#define DEFINE_GLOBAL_FUNC_VAR (1 << 6)
+
+static JSValue JS_ThrowSyntaxErrorVarRedeclaration(JSContext *ctx, JSAtom prop)
+{
+ return JS_ThrowSyntaxErrorAtom(ctx, "redeclaration of '%s'", prop);
+}
+
+/* flags is 0, DEFINE_GLOBAL_LEX_VAR or DEFINE_GLOBAL_FUNC_VAR */
+/* XXX: could support exotic global object. */
+static int JS_CheckDefineGlobalVar(JSContext *ctx, JSAtom prop, int flags)
+{
+ JSObject *p;
+ JSShapeProperty *prs;
+
+ p = JS_VALUE_GET_OBJ(ctx->global_obj);
+ prs = find_own_property1(p, prop);
+ /* XXX: should handle JS_PROP_AUTOINIT */
+ if (flags & DEFINE_GLOBAL_LEX_VAR) {
+ if (prs && !(prs->flags & JS_PROP_CONFIGURABLE))
+ goto fail_redeclaration;
+ } else {
+ if (!prs && !p->extensible)
+ goto define_error;
+ if (flags & DEFINE_GLOBAL_FUNC_VAR) {
+ if (prs) {
+ if (!(prs->flags & JS_PROP_CONFIGURABLE) &&
+ ((prs->flags & JS_PROP_TMASK) == JS_PROP_GETSET ||
+ ((prs->flags & (JS_PROP_WRITABLE | JS_PROP_ENUMERABLE)) !=
+ (JS_PROP_WRITABLE | JS_PROP_ENUMERABLE)))) {
+ define_error:
+ JS_ThrowTypeErrorAtom(ctx, "cannot define variable '%s'",
+ prop);
+ return -1;
+ }
+ }
+ }
+ }
+ /* check if there already is a lexical declaration */
+ p = JS_VALUE_GET_OBJ(ctx->global_var_obj);
+ prs = find_own_property1(p, prop);
+ if (prs) {
+ fail_redeclaration:
+ JS_ThrowSyntaxErrorVarRedeclaration(ctx, prop);
+ return -1;
+ }
+ return 0;
+}
+
+/* def_flags is (0, DEFINE_GLOBAL_LEX_VAR) |
+ JS_PROP_CONFIGURABLE | JS_PROP_WRITABLE */
+/* XXX: could support exotic global object. */
+static int JS_DefineGlobalVar(JSContext *ctx, JSAtom prop, int def_flags)
+{
+ JSObject *p;
+ JSShapeProperty *prs;
+ JSProperty *pr;
+ JSValue val;
+ int flags;
+
+ if (def_flags & DEFINE_GLOBAL_LEX_VAR) {
+ p = JS_VALUE_GET_OBJ(ctx->global_var_obj);
+ flags = JS_PROP_ENUMERABLE | (def_flags & JS_PROP_WRITABLE) |
+ JS_PROP_CONFIGURABLE;
+ val = JS_UNINITIALIZED;
+ } else {
+ p = JS_VALUE_GET_OBJ(ctx->global_obj);
+ flags = JS_PROP_ENUMERABLE | JS_PROP_WRITABLE |
+ (def_flags & JS_PROP_CONFIGURABLE);
+ val = JS_UNDEFINED;
+ }
+ prs = find_own_property1(p, prop);
+ if (prs)
+ return 0;
+ if (!p->extensible)
+ return 0;
+ pr = add_property(ctx, p, prop, flags);
+ if (unlikely(!pr))
+ return -1;
+ pr->u.value = val;
+ return 0;
+}
+
+/* 'def_flags' is 0 or JS_PROP_CONFIGURABLE. */
+/* XXX: could support exotic global object. */
+static int JS_DefineGlobalFunction(JSContext *ctx, JSAtom prop,
+ JSValueConst func, int def_flags)
+{
+
+ JSObject *p;
+ JSShapeProperty *prs;
+ int flags;
+
+ p = JS_VALUE_GET_OBJ(ctx->global_obj);
+ prs = find_own_property1(p, prop);
+ flags = JS_PROP_HAS_VALUE | JS_PROP_THROW;
+ if (!prs || (prs->flags & JS_PROP_CONFIGURABLE)) {
+ flags |= JS_PROP_ENUMERABLE | JS_PROP_WRITABLE | def_flags |
+ JS_PROP_HAS_CONFIGURABLE | JS_PROP_HAS_WRITABLE | JS_PROP_HAS_ENUMERABLE;
+ }
+ if (JS_DefineProperty(ctx, ctx->global_obj, prop, func,
+ JS_UNDEFINED, JS_UNDEFINED, flags) < 0)
+ return -1;
+ return 0;
+}
+
+static JSValue JS_GetGlobalVar(JSContext *ctx, JSAtom prop,
+ BOOL throw_ref_error)
+{
+ JSObject *p;
+ JSShapeProperty *prs;
+ JSProperty *pr;
+
+ /* no exotic behavior is possible in global_var_obj */
+ p = JS_VALUE_GET_OBJ(ctx->global_var_obj);
+ prs = find_own_property(&pr, p, prop);
+ if (prs) {
+ /* XXX: should handle JS_PROP_TMASK properties */
+ if (unlikely(JS_IsUninitialized(pr->u.value)))
+ return JS_ThrowReferenceErrorUninitialized(ctx, prs->atom);
+ return JS_DupValue(ctx, pr->u.value);
+ }
+ return JS_GetPropertyInternal(ctx, ctx->global_obj, prop,
+ ctx->global_obj, throw_ref_error);
+}
+
+/* construct a reference to a global variable */
+static int JS_GetGlobalVarRef(JSContext *ctx, JSAtom prop, JSValue *sp)
+{
+ JSObject *p;
+ JSShapeProperty *prs;
+ JSProperty *pr;
+
+ /* no exotic behavior is possible in global_var_obj */
+ p = JS_VALUE_GET_OBJ(ctx->global_var_obj);
+ prs = find_own_property(&pr, p, prop);
+ if (prs) {
+ /* XXX: should handle JS_PROP_AUTOINIT properties? */
+ /* XXX: conformance: do these tests in
+ OP_put_var_ref/OP_get_var_ref ? */
+ if (unlikely(JS_IsUninitialized(pr->u.value))) {
+ JS_ThrowReferenceErrorUninitialized(ctx, prs->atom);
+ return -1;
+ }
+ if (unlikely(!(prs->flags & JS_PROP_WRITABLE))) {
+ return JS_ThrowTypeErrorReadOnly(ctx, JS_PROP_THROW, prop);
+ }
+ sp[0] = JS_DupValue(ctx, ctx->global_var_obj);
+ } else {
+ int ret;
+ ret = JS_HasProperty(ctx, ctx->global_obj, prop);
+ if (ret < 0)
+ return -1;
+ if (ret) {
+ sp[0] = JS_DupValue(ctx, ctx->global_obj);
+ } else {
+ sp[0] = JS_UNDEFINED;
+ }
+ }
+ sp[1] = JS_AtomToValue(ctx, prop);
+ return 0;
+}
+
+/* use for strict variable access: test if the variable exists */
+static int JS_CheckGlobalVar(JSContext *ctx, JSAtom prop)
+{
+ JSObject *p;
+ JSShapeProperty *prs;
+ int ret;
+
+ /* no exotic behavior is possible in global_var_obj */
+ p = JS_VALUE_GET_OBJ(ctx->global_var_obj);
+ prs = find_own_property1(p, prop);
+ if (prs) {
+ ret = TRUE;
+ } else {
+ ret = JS_HasProperty(ctx, ctx->global_obj, prop);
+ if (ret < 0)
+ return -1;
+ }
+ return ret;
+}
+
+/* flag = 0: normal variable write
+ flag = 1: initialize lexical variable
+ flag = 2: normal variable write, strict check was done before
+*/
+static int JS_SetGlobalVar(JSContext *ctx, JSAtom prop, JSValue val,
+ int flag)
+{
+ JSObject *p;
+ JSShapeProperty *prs;
+ JSProperty *pr;
+ int flags;
+
+ /* no exotic behavior is possible in global_var_obj */
+ p = JS_VALUE_GET_OBJ(ctx->global_var_obj);
+ prs = find_own_property(&pr, p, prop);
+ if (prs) {
+ /* XXX: should handle JS_PROP_AUTOINIT properties? */
+ if (flag != 1) {
+ if (unlikely(JS_IsUninitialized(pr->u.value))) {
+ JS_FreeValue(ctx, val);
+ JS_ThrowReferenceErrorUninitialized(ctx, prs->atom);
+ return -1;
+ }
+ if (unlikely(!(prs->flags & JS_PROP_WRITABLE))) {
+ JS_FreeValue(ctx, val);
+ return JS_ThrowTypeErrorReadOnly(ctx, JS_PROP_THROW, prop);
+ }
+ }
+ set_value(ctx, &pr->u.value, val);
+ return 0;
+ }
+ flags = JS_PROP_THROW_STRICT;
+ if (is_strict_mode(ctx))
+ flags |= JS_PROP_NO_ADD;
+ return JS_SetPropertyInternal(ctx, ctx->global_obj, prop, val, ctx->global_obj, flags);
+}
+
+/* return -1, FALSE or TRUE. return FALSE if not configurable or
+ invalid object. return -1 in case of exception.
+ flags can be 0, JS_PROP_THROW or JS_PROP_THROW_STRICT */
+int JS_DeleteProperty(JSContext *ctx, JSValueConst obj, JSAtom prop, int flags)
+{
+ JSValue obj1;
+ JSObject *p;
+ int res;
+
+ obj1 = JS_ToObject(ctx, obj);
+ if (JS_IsException(obj1))
+ return -1;
+ p = JS_VALUE_GET_OBJ(obj1);
+ res = delete_property(ctx, p, prop);
+ JS_FreeValue(ctx, obj1);
+ if (res != FALSE)
+ return res;
+ if ((flags & JS_PROP_THROW) ||
+ ((flags & JS_PROP_THROW_STRICT) && is_strict_mode(ctx))) {
+ JS_ThrowTypeError(ctx, "could not delete property");
+ return -1;
+ }
+ return FALSE;
+}
+
+int JS_DeletePropertyInt64(JSContext *ctx, JSValueConst obj, int64_t idx, int flags)
+{
+ JSAtom prop;
+ int res;
+
+ if ((uint64_t)idx <= JS_ATOM_MAX_INT) {
+ /* fast path for fast arrays */
+ return JS_DeleteProperty(ctx, obj, __JS_AtomFromUInt32(idx), flags);
+ }
+ prop = JS_NewAtomInt64(ctx, idx);
+ if (prop == JS_ATOM_NULL)
+ return -1;
+ res = JS_DeleteProperty(ctx, obj, prop, flags);
+ JS_FreeAtom(ctx, prop);
+ return res;
+}
+
+BOOL JS_IsFunction(JSContext *ctx, JSValueConst val)
+{
+ JSObject *p;
+ if (JS_VALUE_GET_TAG(val) != JS_TAG_OBJECT)
+ return FALSE;
+ p = JS_VALUE_GET_OBJ(val);
+ switch(p->class_id) {
+ case JS_CLASS_BYTECODE_FUNCTION:
+ return TRUE;
+ case JS_CLASS_PROXY:
+ return p->u.proxy_data->is_func;
+ default:
+ return (ctx->rt->class_array[p->class_id].call != NULL);
+ }
+}
+
+BOOL JS_IsCFunction(JSContext *ctx, JSValueConst val, JSCFunction *func, int magic)
+{
+ JSObject *p;
+ if (JS_VALUE_GET_TAG(val) != JS_TAG_OBJECT)
+ return FALSE;
+ p = JS_VALUE_GET_OBJ(val);
+ if (p->class_id == JS_CLASS_C_FUNCTION)
+ return (p->u.cfunc.c_function.generic == func && p->u.cfunc.magic == magic);
+ else
+ return FALSE;
+}
+
+BOOL JS_IsConstructor(JSContext *ctx, JSValueConst val)
+{
+ JSObject *p;
+ if (JS_VALUE_GET_TAG(val) != JS_TAG_OBJECT)
+ return FALSE;
+ p = JS_VALUE_GET_OBJ(val);
+ return p->is_constructor;
+}
+
+BOOL JS_SetConstructorBit(JSContext *ctx, JSValueConst func_obj, BOOL val)
+{
+ JSObject *p;
+ if (JS_VALUE_GET_TAG(func_obj) != JS_TAG_OBJECT)
+ return FALSE;
+ p = JS_VALUE_GET_OBJ(func_obj);
+ p->is_constructor = val;
+ return TRUE;
+}
+
+BOOL JS_IsError(JSContext *ctx, JSValueConst val)
+{
+ JSObject *p;
+ if (JS_VALUE_GET_TAG(val) != JS_TAG_OBJECT)
+ return FALSE;
+ p = JS_VALUE_GET_OBJ(val);
+ return (p->class_id == JS_CLASS_ERROR);
+}
+
+/* used to avoid catching interrupt exceptions */
+BOOL JS_IsUncatchableError(JSContext *ctx, JSValueConst val)
+{
+ JSObject *p;
+ if (JS_VALUE_GET_TAG(val) != JS_TAG_OBJECT)
+ return FALSE;
+ p = JS_VALUE_GET_OBJ(val);
+ return p->class_id == JS_CLASS_ERROR && p->is_uncatchable_error;
+}
+
+void JS_SetUncatchableError(JSContext *ctx, JSValueConst val, BOOL flag)
+{
+ JSObject *p;
+ if (JS_VALUE_GET_TAG(val) != JS_TAG_OBJECT)
+ return;
+ p = JS_VALUE_GET_OBJ(val);
+ if (p->class_id == JS_CLASS_ERROR)
+ p->is_uncatchable_error = flag;
+}
+
+void JS_ResetUncatchableError(JSContext *ctx)
+{
+ JS_SetUncatchableError(ctx, ctx->rt->current_exception, FALSE);
+}
+
+void JS_SetOpaque(JSValue obj, void *opaque)
+{
+ JSObject *p;
+ if (JS_VALUE_GET_TAG(obj) == JS_TAG_OBJECT) {
+ p = JS_VALUE_GET_OBJ(obj);
+ p->u.opaque = opaque;
+ }
+}
+
+/* return NULL if not an object of class class_id */
+void *JS_GetOpaque(JSValueConst obj, JSClassID class_id)
+{
+ JSObject *p;
+ if (JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT)
+ return NULL;
+ p = JS_VALUE_GET_OBJ(obj);
+ if (p->class_id != class_id)
+ return NULL;
+ return p->u.opaque;
+}
+
+void *JS_GetOpaque2(JSContext *ctx, JSValueConst obj, JSClassID class_id)
+{
+ void *p = JS_GetOpaque(obj, class_id);
+ if (unlikely(!p)) {
+ JS_ThrowTypeErrorInvalidClass(ctx, class_id);
+ }
+ return p;
+}
+
+static JSValue JS_ToPrimitiveFree(JSContext *ctx, JSValue val, int hint)
+{
+ int i;
+ BOOL force_ordinary;
+
+ JSAtom method_name;
+ JSValue method, ret;
+ if (JS_VALUE_GET_TAG(val) != JS_TAG_OBJECT)
+ return val;
+ force_ordinary = hint & HINT_FORCE_ORDINARY;
+ hint &= ~HINT_FORCE_ORDINARY;
+ if (!force_ordinary) {
+ method = JS_GetProperty(ctx, val, JS_ATOM_Symbol_toPrimitive);
+ if (JS_IsException(method))
+ goto exception;
+ /* ECMA says *If exoticToPrim is not undefined* but tests in
+ test262 use null as a non callable converter */
+ if (!JS_IsUndefined(method) && !JS_IsNull(method)) {
+ JSAtom atom;
+ JSValue arg;
+ switch(hint) {
+ case HINT_STRING:
+ atom = JS_ATOM_string;
+ break;
+ case HINT_NUMBER:
+ atom = JS_ATOM_number;
+ break;
+ default:
+ case HINT_NONE:
+ atom = JS_ATOM_default;
+ break;
+ }
+ arg = JS_AtomToString(ctx, atom);
+ ret = JS_CallFree(ctx, method, val, 1, (JSValueConst *)&arg);
+ JS_FreeValue(ctx, arg);
+ if (JS_IsException(ret))
+ goto exception;
+ JS_FreeValue(ctx, val);
+ if (JS_VALUE_GET_TAG(ret) != JS_TAG_OBJECT)
+ return ret;
+ JS_FreeValue(ctx, ret);
+ return JS_ThrowTypeError(ctx, "toPrimitive");
+ }
+ }
+ if (hint != HINT_STRING)
+ hint = HINT_NUMBER;
+ for(i = 0; i < 2; i++) {
+ if ((i ^ hint) == 0) {
+ method_name = JS_ATOM_toString;
+ } else {
+ method_name = JS_ATOM_valueOf;
+ }
+ method = JS_GetProperty(ctx, val, method_name);
+ if (JS_IsException(method))
+ goto exception;
+ if (JS_IsFunction(ctx, method)) {
+ ret = JS_CallFree(ctx, method, val, 0, NULL);
+ if (JS_IsException(ret))
+ goto exception;
+ if (JS_VALUE_GET_TAG(ret) != JS_TAG_OBJECT) {
+ JS_FreeValue(ctx, val);
+ return ret;
+ }
+ JS_FreeValue(ctx, ret);
+ } else {
+ JS_FreeValue(ctx, method);
+ }
+ }
+ JS_ThrowTypeError(ctx, "toPrimitive");
+exception:
+ JS_FreeValue(ctx, val);
+ return JS_EXCEPTION;
+}
+
+static JSValue JS_ToPrimitive(JSContext *ctx, JSValueConst val, int hint)
+{
+ return JS_ToPrimitiveFree(ctx, JS_DupValue(ctx, val), hint);
+}
+
+void JS_SetIsHTMLDDA(JSContext *ctx, JSValueConst obj)
+{
+ JSObject *p;
+ if (JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT)
+ return;
+ p = JS_VALUE_GET_OBJ(obj);
+ p->is_HTMLDDA = TRUE;
+}
+
+static inline BOOL JS_IsHTMLDDA(JSContext *ctx, JSValueConst obj)
+{
+ JSObject *p;
+ if (JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT)
+ return FALSE;
+ p = JS_VALUE_GET_OBJ(obj);
+ return p->is_HTMLDDA;
+}
+
+static int JS_ToBoolFree(JSContext *ctx, JSValue val)
+{
+ uint32_t tag = JS_VALUE_GET_TAG(val);
+ switch(tag) {
+ case JS_TAG_INT:
+ return JS_VALUE_GET_INT(val) != 0;
+ case JS_TAG_BOOL:
+ case JS_TAG_NULL:
+ case JS_TAG_UNDEFINED:
+ return JS_VALUE_GET_INT(val);
+ case JS_TAG_EXCEPTION:
+ return -1;
+ case JS_TAG_STRING:
+ {
+ BOOL ret = JS_VALUE_GET_STRING(val)->len != 0;
+ JS_FreeValue(ctx, val);
+ return ret;
+ }
+ case JS_TAG_BIG_INT:
+#ifdef CONFIG_BIGNUM
+ case JS_TAG_BIG_FLOAT:
+#endif
+ {
+ JSBigFloat *p = JS_VALUE_GET_PTR(val);
+ BOOL ret;
+ ret = p->num.expn != BF_EXP_ZERO && p->num.expn != BF_EXP_NAN;
+ JS_FreeValue(ctx, val);
+ return ret;
+ }
+#ifdef CONFIG_BIGNUM
+ case JS_TAG_BIG_DECIMAL:
+ {
+ JSBigDecimal *p = JS_VALUE_GET_PTR(val);
+ BOOL ret;
+ ret = p->num.expn != BF_EXP_ZERO && p->num.expn != BF_EXP_NAN;
+ JS_FreeValue(ctx, val);
+ return ret;
+ }
+#endif
+ case JS_TAG_OBJECT:
+ {
+ JSObject *p = JS_VALUE_GET_OBJ(val);
+ BOOL ret;
+ ret = !p->is_HTMLDDA;
+ JS_FreeValue(ctx, val);
+ return ret;
+ }
+ break;
+ default:
+ if (JS_TAG_IS_FLOAT64(tag)) {
+ double d = JS_VALUE_GET_FLOAT64(val);
+ return !isnan(d) && d != 0;
+ } else {
+ JS_FreeValue(ctx, val);
+ return TRUE;
+ }
+ }
+}
+
+int JS_ToBool(JSContext *ctx, JSValueConst val)
+{
+ return JS_ToBoolFree(ctx, JS_DupValue(ctx, val));
+}
+
+static int skip_spaces(const char *pc)
+{
+ const uint8_t *p, *p_next, *p_start;
+ uint32_t c;
+
+ p = p_start = (const uint8_t *)pc;
+ for (;;) {
+ c = *p;
+ if (c < 128) {
+ if (!((c >= 0x09 && c <= 0x0d) || (c == 0x20)))
+ break;
+ p++;
+ } else {
+ c = unicode_from_utf8(p, UTF8_CHAR_LEN_MAX, &p_next);
+ if (!lre_is_space(c))
+ break;
+ p = p_next;
+ }
+ }
+ return p - p_start;
+}
+
+static inline int to_digit(int c)
+{
+ if (c >= '0' && c <= '9')
+ return c - '0';
+ else if (c >= 'A' && c <= 'Z')
+ return c - 'A' + 10;
+ else if (c >= 'a' && c <= 'z')
+ return c - 'a' + 10;
+ else
+ return 36;
+}
+
+/* XXX: remove */
+static double js_strtod(const char *str, int radix, BOOL is_float)
+{
+ double d;
+ int c;
+
+ if (!is_float || radix != 10) {
+ const char *p = str;
+ uint64_t n_max, n;
+ int int_exp, is_neg;
+
+ is_neg = 0;
+ if (*p == '-') {
+ is_neg = 1;
+ p++;
+ }
+
+ /* skip leading zeros */
+ while (*p == '0')
+ p++;
+ n = 0;
+ if (radix == 10)
+ n_max = ((uint64_t)-1 - 9) / 10; /* most common case */
+ else
+ n_max = ((uint64_t)-1 - (radix - 1)) / radix;
+ /* XXX: could be more precise */
+ int_exp = 0;
+ while (*p != '\0') {
+ c = to_digit((uint8_t)*p);
+ if (c >= radix)
+ break;
+ if (n <= n_max) {
+ n = n * radix + c;
+ } else {
+ if (radix == 10)
+ goto strtod_case;
+ int_exp++;
+ }
+ p++;
+ }
+ d = n;
+ if (int_exp != 0) {
+ d *= pow(radix, int_exp);
+ }
+ if (is_neg)
+ d = -d;
+ } else {
+ strtod_case:
+ d = strtod(str, NULL);
+ }
+ return d;
+}
+
+#define ATOD_INT_ONLY (1 << 0)
+/* accept Oo and Ob prefixes in addition to 0x prefix if radix = 0 */
+#define ATOD_ACCEPT_BIN_OCT (1 << 2)
+/* accept O prefix as octal if radix == 0 and properly formed (Annex B) */
+#define ATOD_ACCEPT_LEGACY_OCTAL (1 << 4)
+/* accept _ between digits as a digit separator */
+#define ATOD_ACCEPT_UNDERSCORES (1 << 5)
+/* allow a suffix to override the type */
+#define ATOD_ACCEPT_SUFFIX (1 << 6)
+/* default type */
+#define ATOD_TYPE_MASK (3 << 7)
+#define ATOD_TYPE_FLOAT64 (0 << 7)
+#define ATOD_TYPE_BIG_INT (1 << 7)
+#ifdef CONFIG_BIGNUM
+#define ATOD_TYPE_BIG_FLOAT (2 << 7)
+#define ATOD_TYPE_BIG_DECIMAL (3 << 7)
+/* assume bigint mode: floats are parsed as integers if no decimal
+ point nor exponent */
+#define ATOD_MODE_BIGINT (1 << 9)
+#endif
+/* accept -0x1 */
+#define ATOD_ACCEPT_PREFIX_AFTER_SIGN (1 << 10)
+
+static JSValue js_string_to_bigint(JSContext *ctx, const char *buf,
+ int radix, int flags, slimb_t *pexponent)
+{
+ bf_t a_s, *a = &a_s;
+ int ret;
+ JSValue val;
+ val = JS_NewBigInt(ctx);
+ if (JS_IsException(val))
+ return val;
+ a = JS_GetBigInt(val);
+ ret = bf_atof(a, buf, NULL, radix, BF_PREC_INF, BF_RNDZ);
+ if (ret & BF_ST_MEM_ERROR) {
+ JS_FreeValue(ctx, val);
+ return JS_ThrowOutOfMemory(ctx);
+ }
+#ifdef CONFIG_BIGNUM
+ val = JS_CompactBigInt1(ctx, val, (flags & ATOD_MODE_BIGINT) != 0);
+#else
+ val = JS_CompactBigInt1(ctx, val, FALSE);
+#endif
+ return val;
+}
+
+#ifdef CONFIG_BIGNUM
+static JSValue js_string_to_bigfloat(JSContext *ctx, const char *buf,
+ int radix, int flags, slimb_t *pexponent)
+{
+ bf_t *a;
+ int ret;
+ JSValue val;
+
+ val = JS_NewBigFloat(ctx);
+ if (JS_IsException(val))
+ return val;
+ a = JS_GetBigFloat(val);
+ if (flags & ATOD_ACCEPT_SUFFIX) {
+ /* return the exponent to get infinite precision */
+ ret = bf_atof2(a, pexponent, buf, NULL, radix, BF_PREC_INF,
+ BF_RNDZ | BF_ATOF_EXPONENT);
+ } else {
+ ret = bf_atof(a, buf, NULL, radix, ctx->fp_env.prec,
+ ctx->fp_env.flags);
+ }
+ if (ret & BF_ST_MEM_ERROR) {
+ JS_FreeValue(ctx, val);
+ return JS_ThrowOutOfMemory(ctx);
+ }
+ return val;
+}
+
+static JSValue js_string_to_bigdecimal(JSContext *ctx, const char *buf,
+ int radix, int flags, slimb_t *pexponent)
+{
+ bfdec_t *a;
+ int ret;
+ JSValue val;
+
+ val = JS_NewBigDecimal(ctx);
+ if (JS_IsException(val))
+ return val;
+ a = JS_GetBigDecimal(val);
+ ret = bfdec_atof(a, buf, NULL, BF_PREC_INF,
+ BF_RNDZ | BF_ATOF_NO_NAN_INF);
+ if (ret & BF_ST_MEM_ERROR) {
+ JS_FreeValue(ctx, val);
+ return JS_ThrowOutOfMemory(ctx);
+ }
+ return val;
+}
+#endif
+
+/* return an exception in case of memory error. Return JS_NAN if
+ invalid syntax */
+#ifdef CONFIG_BIGNUM
+static JSValue js_atof2(JSContext *ctx, const char *str, const char **pp,
+ int radix, int flags, slimb_t *pexponent)
+#else
+static JSValue js_atof(JSContext *ctx, const char *str, const char **pp,
+ int radix, int flags)
+#endif
+{
+ const char *p, *p_start;
+ int sep, is_neg;
+ BOOL is_float, has_legacy_octal;
+ int atod_type = flags & ATOD_TYPE_MASK;
+ char buf1[64], *buf;
+ int i, j, len;
+ BOOL buf_allocated = FALSE;
+ JSValue val;
+
+ /* optional separator between digits */
+ sep = (flags & ATOD_ACCEPT_UNDERSCORES) ? '_' : 256;
+ has_legacy_octal = FALSE;
+
+ p = str;
+ p_start = p;
+ is_neg = 0;
+ if (p[0] == '+') {
+ p++;
+ p_start++;
+ if (!(flags & ATOD_ACCEPT_PREFIX_AFTER_SIGN))
+ goto no_radix_prefix;
+ } else if (p[0] == '-') {
+ p++;
+ p_start++;
+ is_neg = 1;
+ if (!(flags & ATOD_ACCEPT_PREFIX_AFTER_SIGN))
+ goto no_radix_prefix;
+ }
+ if (p[0] == '0') {
+ if ((p[1] == 'x' || p[1] == 'X') &&
+ (radix == 0 || radix == 16)) {
+ p += 2;
+ radix = 16;
+ } else if ((p[1] == 'o' || p[1] == 'O') &&
+ radix == 0 && (flags & ATOD_ACCEPT_BIN_OCT)) {
+ p += 2;
+ radix = 8;
+ } else if ((p[1] == 'b' || p[1] == 'B') &&
+ radix == 0 && (flags & ATOD_ACCEPT_BIN_OCT)) {
+ p += 2;
+ radix = 2;
+ } else if ((p[1] >= '0' && p[1] <= '9') &&
+ radix == 0 && (flags & ATOD_ACCEPT_LEGACY_OCTAL)) {
+ int i;
+ has_legacy_octal = TRUE;
+ sep = 256;
+ for (i = 1; (p[i] >= '0' && p[i] <= '7'); i++)
+ continue;
+ if (p[i] == '8' || p[i] == '9')
+ goto no_prefix;
+ p += 1;
+ radix = 8;
+ } else {
+ goto no_prefix;
+ }
+ /* there must be a digit after the prefix */
+ if (to_digit((uint8_t)*p) >= radix)
+ goto fail;
+ no_prefix: ;
+ } else {
+ no_radix_prefix:
+ if (!(flags & ATOD_INT_ONLY) &&
+ (atod_type == ATOD_TYPE_FLOAT64
+#ifdef CONFIG_BIGNUM
+ || atod_type == ATOD_TYPE_BIG_FLOAT
+#endif
+ ) &&
+ strstart(p, "Infinity", &p)) {
+#ifdef CONFIG_BIGNUM
+ if (atod_type == ATOD_TYPE_BIG_FLOAT) {
+ bf_t *a;
+ val = JS_NewBigFloat(ctx);
+ if (JS_IsException(val))
+ goto done;
+ a = JS_GetBigFloat(val);
+ bf_set_inf(a, is_neg);
+ } else
+#endif
+ {
+ double d = 1.0 / 0.0;
+ if (is_neg)
+ d = -d;
+ val = JS_NewFloat64(ctx, d);
+ }
+ goto done;
+ }
+ }
+ if (radix == 0)
+ radix = 10;
+ is_float = FALSE;
+ p_start = p;
+ while (to_digit((uint8_t)*p) < radix
+ || (*p == sep && (radix != 10 ||
+ p != p_start + 1 || p[-1] != '0') &&
+ to_digit((uint8_t)p[1]) < radix)) {
+ p++;
+ }
+ if (!(flags & ATOD_INT_ONLY)) {
+ if (*p == '.' && (p > p_start || to_digit((uint8_t)p[1]) < radix)) {
+ is_float = TRUE;
+ p++;
+ if (*p == sep)
+ goto fail;
+ while (to_digit((uint8_t)*p) < radix ||
+ (*p == sep && to_digit((uint8_t)p[1]) < radix))
+ p++;
+ }
+ if (p > p_start &&
+ (((*p == 'e' || *p == 'E') && radix == 10) ||
+ ((*p == 'p' || *p == 'P') && (radix == 2 || radix == 8 || radix == 16)))) {
+ const char *p1 = p + 1;
+ is_float = TRUE;
+ if (*p1 == '+') {
+ p1++;
+ } else if (*p1 == '-') {
+ p1++;
+ }
+ if (is_digit((uint8_t)*p1)) {
+ p = p1 + 1;
+ while (is_digit((uint8_t)*p) || (*p == sep && is_digit((uint8_t)p[1])))
+ p++;
+ }
+ }
+ }
+ if (p == p_start)
+ goto fail;
+
+ buf = buf1;
+ buf_allocated = FALSE;
+ len = p - p_start;
+ if (unlikely((len + 2) > sizeof(buf1))) {
+ buf = js_malloc_rt(ctx->rt, len + 2); /* no exception raised */
+ if (!buf)
+ goto mem_error;
+ buf_allocated = TRUE;
+ }
+ /* remove the separators and the radix prefixes */
+ j = 0;
+ if (is_neg)
+ buf[j++] = '-';
+ for (i = 0; i < len; i++) {
+ if (p_start[i] != '_')
+ buf[j++] = p_start[i];
+ }
+ buf[j] = '\0';
+
+ if (flags & ATOD_ACCEPT_SUFFIX) {
+ if (*p == 'n') {
+ p++;
+ atod_type = ATOD_TYPE_BIG_INT;
+ } else
+#ifdef CONFIG_BIGNUM
+ if (*p == 'l') {
+ p++;
+ atod_type = ATOD_TYPE_BIG_FLOAT;
+ } else if (*p == 'm') {
+ p++;
+ atod_type = ATOD_TYPE_BIG_DECIMAL;
+ } else if (flags & ATOD_MODE_BIGINT) {
+ if (!is_float)
+ atod_type = ATOD_TYPE_BIG_INT;
+ if (has_legacy_octal)
+ goto fail;
+ } else
+#endif
+ {
+ if (is_float && radix != 10)
+ goto fail;
+ }
+ } else {
+ if (atod_type == ATOD_TYPE_FLOAT64) {
+#ifdef CONFIG_BIGNUM
+ if (flags & ATOD_MODE_BIGINT) {
+ if (!is_float)
+ atod_type = ATOD_TYPE_BIG_INT;
+ if (has_legacy_octal)
+ goto fail;
+ } else
+#endif
+ {
+ if (is_float && radix != 10)
+ goto fail;
+ }
+ }
+ }
+
+ switch(atod_type) {
+ case ATOD_TYPE_FLOAT64:
+ {
+ double d;
+ d = js_strtod(buf, radix, is_float);
+ /* return int or float64 */
+ val = JS_NewFloat64(ctx, d);
+ }
+ break;
+ case ATOD_TYPE_BIG_INT:
+ if (has_legacy_octal || is_float)
+ goto fail;
+ val = ctx->rt->bigint_ops.from_string(ctx, buf, radix, flags, NULL);
+ break;
+#ifdef CONFIG_BIGNUM
+ case ATOD_TYPE_BIG_FLOAT:
+ if (has_legacy_octal)
+ goto fail;
+ val = ctx->rt->bigfloat_ops.from_string(ctx, buf, radix, flags,
+ pexponent);
+ break;
+ case ATOD_TYPE_BIG_DECIMAL:
+ if (radix != 10)
+ goto fail;
+ val = ctx->rt->bigdecimal_ops.from_string(ctx, buf, radix, flags, NULL);
+ break;
+#endif
+ default:
+ abort();
+ }
+
+done:
+ if (buf_allocated)
+ js_free_rt(ctx->rt, buf);
+ if (pp)
+ *pp = p;
+ return val;
+ fail:
+ val = JS_NAN;
+ goto done;
+ mem_error:
+ val = JS_ThrowOutOfMemory(ctx);
+ goto done;
+}
+
+#ifdef CONFIG_BIGNUM
+static JSValue js_atof(JSContext *ctx, const char *str, const char **pp,
+ int radix, int flags)
+{
+ return js_atof2(ctx, str, pp, radix, flags, NULL);
+}
+#endif
+
+typedef enum JSToNumberHintEnum {
+ TON_FLAG_NUMBER,
+ TON_FLAG_NUMERIC,
+} JSToNumberHintEnum;
+
+static JSValue JS_ToNumberHintFree(JSContext *ctx, JSValue val,
+ JSToNumberHintEnum flag)
+{
+ uint32_t tag;
+ JSValue ret;
+
+ redo:
+ tag = JS_VALUE_GET_NORM_TAG(val);
+ switch(tag) {
+ case JS_TAG_BIG_INT:
+ if (flag != TON_FLAG_NUMERIC) {
+ JS_FreeValue(ctx, val);
+ return JS_ThrowTypeError(ctx, "cannot convert bigint to number");
+ }
+ ret = val;
+ break;
+#ifdef CONFIG_BIGNUM
+ case JS_TAG_BIG_DECIMAL:
+ if (flag != TON_FLAG_NUMERIC) {
+ JS_FreeValue(ctx, val);
+ return JS_ThrowTypeError(ctx, "cannot convert bigdecimal to number");
+ }
+ ret = val;
+ break;
+ case JS_TAG_BIG_FLOAT:
+ if (flag != TON_FLAG_NUMERIC) {
+ JS_FreeValue(ctx, val);
+ return JS_ThrowTypeError(ctx, "cannot convert bigfloat to number");
+ }
+ ret = val;
+ break;
+#endif
+ case JS_TAG_FLOAT64:
+ case JS_TAG_INT:
+ case JS_TAG_EXCEPTION:
+ ret = val;
+ break;
+ case JS_TAG_BOOL:
+ case JS_TAG_NULL:
+ ret = JS_NewInt32(ctx, JS_VALUE_GET_INT(val));
+ break;
+ case JS_TAG_UNDEFINED:
+ ret = JS_NAN;
+ break;
+ case JS_TAG_OBJECT:
+ val = JS_ToPrimitiveFree(ctx, val, HINT_NUMBER);
+ if (JS_IsException(val))
+ return JS_EXCEPTION;
+ goto redo;
+ case JS_TAG_STRING:
+ {
+ const char *str;
+ const char *p;
+ size_t len;
+
+ str = JS_ToCStringLen(ctx, &len, val);
+ JS_FreeValue(ctx, val);
+ if (!str)
+ return JS_EXCEPTION;
+ p = str;
+ p += skip_spaces(p);
+ if ((p - str) == len) {
+ ret = JS_NewInt32(ctx, 0);
+ } else {
+ int flags = ATOD_ACCEPT_BIN_OCT;
+ ret = js_atof(ctx, p, &p, 0, flags);
+ if (!JS_IsException(ret)) {
+ p += skip_spaces(p);
+ if ((p - str) != len) {
+ JS_FreeValue(ctx, ret);
+ ret = JS_NAN;
+ }
+ }
+ }
+ JS_FreeCString(ctx, str);
+ }
+ break;
+ case JS_TAG_SYMBOL:
+ JS_FreeValue(ctx, val);
+ return JS_ThrowTypeError(ctx, "cannot convert symbol to number");
+ default:
+ JS_FreeValue(ctx, val);
+ ret = JS_NAN;
+ break;
+ }
+ return ret;
+}
+
+static JSValue JS_ToNumberFree(JSContext *ctx, JSValue val)
+{
+ return JS_ToNumberHintFree(ctx, val, TON_FLAG_NUMBER);
+}
+
+static JSValue JS_ToNumericFree(JSContext *ctx, JSValue val)
+{
+ return JS_ToNumberHintFree(ctx, val, TON_FLAG_NUMERIC);
+}
+
+static JSValue JS_ToNumeric(JSContext *ctx, JSValueConst val)
+{
+ return JS_ToNumericFree(ctx, JS_DupValue(ctx, val));
+}
+
+static __exception int __JS_ToFloat64Free(JSContext *ctx, double *pres,
+ JSValue val)
+{
+ double d;
+ uint32_t tag;
+
+ val = JS_ToNumberFree(ctx, val);
+ if (JS_IsException(val)) {
+ *pres = JS_FLOAT64_NAN;
+ return -1;
+ }
+ tag = JS_VALUE_GET_NORM_TAG(val);
+ switch(tag) {
+ case JS_TAG_INT:
+ d = JS_VALUE_GET_INT(val);
+ break;
+ case JS_TAG_FLOAT64:
+ d = JS_VALUE_GET_FLOAT64(val);
+ break;
+ case JS_TAG_BIG_INT:
+#ifdef CONFIG_BIGNUM
+ case JS_TAG_BIG_FLOAT:
+#endif
+ {
+ JSBigFloat *p = JS_VALUE_GET_PTR(val);
+ /* XXX: there can be a double rounding issue with some
+ primitives (such as JS_ToUint8ClampFree()), but it is
+ not critical to fix it. */
+ bf_get_float64(&p->num, &d, BF_RNDN);
+ JS_FreeValue(ctx, val);
+ }
+ break;
+ default:
+ abort();
+ }
+ *pres = d;
+ return 0;
+}
+
+static inline int JS_ToFloat64Free(JSContext *ctx, double *pres, JSValue val)
+{
+ uint32_t tag;
+
+ tag = JS_VALUE_GET_TAG(val);
+ if (tag <= JS_TAG_NULL) {
+ *pres = JS_VALUE_GET_INT(val);
+ return 0;
+ } else if (JS_TAG_IS_FLOAT64(tag)) {
+ *pres = JS_VALUE_GET_FLOAT64(val);
+ return 0;
+ } else {
+ return __JS_ToFloat64Free(ctx, pres, val);
+ }
+}
+
+int JS_ToFloat64(JSContext *ctx, double *pres, JSValueConst val)
+{
+ return JS_ToFloat64Free(ctx, pres, JS_DupValue(ctx, val));
+}
+
+static JSValue JS_ToNumber(JSContext *ctx, JSValueConst val)
+{
+ return JS_ToNumberFree(ctx, JS_DupValue(ctx, val));
+}
+
+/* same as JS_ToNumber() but return 0 in case of NaN/Undefined */
+static __maybe_unused JSValue JS_ToIntegerFree(JSContext *ctx, JSValue val)
+{
+ uint32_t tag;
+ JSValue ret;
+
+ redo:
+ tag = JS_VALUE_GET_NORM_TAG(val);
+ switch(tag) {
+ case JS_TAG_INT:
+ case JS_TAG_BOOL:
+ case JS_TAG_NULL:
+ case JS_TAG_UNDEFINED:
+ ret = JS_NewInt32(ctx, JS_VALUE_GET_INT(val));
+ break;
+ case JS_TAG_FLOAT64:
+ {
+ double d = JS_VALUE_GET_FLOAT64(val);
+ if (isnan(d)) {
+ ret = JS_NewInt32(ctx, 0);
+ } else {
+ /* convert -0 to +0 */
+ d = trunc(d) + 0.0;
+ ret = JS_NewFloat64(ctx, d);
+ }
+ }
+ break;
+#ifdef CONFIG_BIGNUM
+ case JS_TAG_BIG_FLOAT:
+ {
+ bf_t a_s, *a, r_s, *r = &r_s;
+ BOOL is_nan;
+
+ a = JS_ToBigFloat(ctx, &a_s, val);
+ if (!a) {
+ JS_FreeValue(ctx, val);
+ return JS_EXCEPTION;
+ }
+ if (!bf_is_finite(a)) {
+ is_nan = bf_is_nan(a);
+ if (is_nan)
+ ret = JS_NewInt32(ctx, 0);
+ else
+ ret = JS_DupValue(ctx, val);
+ } else {
+ ret = JS_NewBigInt(ctx);
+ if (!JS_IsException(ret)) {
+ r = JS_GetBigInt(ret);
+ bf_set(r, a);
+ bf_rint(r, BF_RNDZ);
+ ret = JS_CompactBigInt(ctx, ret);
+ }
+ }
+ if (a == &a_s)
+ bf_delete(a);
+ JS_FreeValue(ctx, val);
+ }
+ break;
+#endif
+ default:
+ val = JS_ToNumberFree(ctx, val);
+ if (JS_IsException(val))
+ return val;
+ goto redo;
+ }
+ return ret;
+}
+
+/* Note: the integer value is satured to 32 bits */
+static int JS_ToInt32SatFree(JSContext *ctx, int *pres, JSValue val)
+{
+ uint32_t tag;
+ int ret;
+
+ redo:
+ tag = JS_VALUE_GET_NORM_TAG(val);
+ switch(tag) {
+ case JS_TAG_INT:
+ case JS_TAG_BOOL:
+ case JS_TAG_NULL:
+ case JS_TAG_UNDEFINED:
+ ret = JS_VALUE_GET_INT(val);
+ break;
+ case JS_TAG_EXCEPTION:
+ *pres = 0;
+ return -1;
+ case JS_TAG_FLOAT64:
+ {
+ double d = JS_VALUE_GET_FLOAT64(val);
+ if (isnan(d)) {
+ ret = 0;
+ } else {
+ if (d < INT32_MIN)
+ ret = INT32_MIN;
+ else if (d > INT32_MAX)
+ ret = INT32_MAX;
+ else
+ ret = (int)d;
+ }
+ }
+ break;
+#ifdef CONFIG_BIGNUM
+ case JS_TAG_BIG_FLOAT:
+ {
+ JSBigFloat *p = JS_VALUE_GET_PTR(val);
+ bf_get_int32(&ret, &p->num, 0);
+ JS_FreeValue(ctx, val);
+ }
+ break;
+#endif
+ default:
+ val = JS_ToNumberFree(ctx, val);
+ if (JS_IsException(val)) {
+ *pres = 0;
+ return -1;
+ }
+ goto redo;
+ }
+ *pres = ret;
+ return 0;
+}
+
+int JS_ToInt32Sat(JSContext *ctx, int *pres, JSValueConst val)
+{
+ return JS_ToInt32SatFree(ctx, pres, JS_DupValue(ctx, val));
+}
+
+int JS_ToInt32Clamp(JSContext *ctx, int *pres, JSValueConst val,
+ int min, int max, int min_offset)
+{
+ int res = JS_ToInt32SatFree(ctx, pres, JS_DupValue(ctx, val));
+ if (res == 0) {
+ if (*pres < min) {
+ *pres += min_offset;
+ if (*pres < min)
+ *pres = min;
+ } else {
+ if (*pres > max)
+ *pres = max;
+ }
+ }
+ return res;
+}
+
+static int JS_ToInt64SatFree(JSContext *ctx, int64_t *pres, JSValue val)
+{
+ uint32_t tag;
+
+ redo:
+ tag = JS_VALUE_GET_NORM_TAG(val);
+ switch(tag) {
+ case JS_TAG_INT:
+ case JS_TAG_BOOL:
+ case JS_TAG_NULL:
+ case JS_TAG_UNDEFINED:
+ *pres = JS_VALUE_GET_INT(val);
+ return 0;
+ case JS_TAG_EXCEPTION:
+ *pres = 0;
+ return -1;
+ case JS_TAG_FLOAT64:
+ {
+ double d = JS_VALUE_GET_FLOAT64(val);
+ if (isnan(d)) {
+ *pres = 0;
+ } else {
+ if (d < INT64_MIN)
+ *pres = INT64_MIN;
+ else if (d >= 0x1p63) /* must use INT64_MAX + 1 because INT64_MAX cannot be exactly represented as a double */
+ *pres = INT64_MAX;
+ else
+ *pres = (int64_t)d;
+ }
+ }
+ return 0;
+#ifdef CONFIG_BIGNUM
+ case JS_TAG_BIG_FLOAT:
+ {
+ JSBigFloat *p = JS_VALUE_GET_PTR(val);
+ bf_get_int64(pres, &p->num, 0);
+ JS_FreeValue(ctx, val);
+ }
+ return 0;
+#endif
+ default:
+ val = JS_ToNumberFree(ctx, val);
+ if (JS_IsException(val)) {
+ *pres = 0;
+ return -1;
+ }
+ goto redo;
+ }
+}
+
+int JS_ToInt64Sat(JSContext *ctx, int64_t *pres, JSValueConst val)
+{
+ return JS_ToInt64SatFree(ctx, pres, JS_DupValue(ctx, val));
+}
+
+int JS_ToInt64Clamp(JSContext *ctx, int64_t *pres, JSValueConst val,
+ int64_t min, int64_t max, int64_t neg_offset)
+{
+ int res = JS_ToInt64SatFree(ctx, pres, JS_DupValue(ctx, val));
+ if (res == 0) {
+ if (*pres < 0)
+ *pres += neg_offset;
+ if (*pres < min)
+ *pres = min;
+ else if (*pres > max)
+ *pres = max;
+ }
+ return res;
+}
+
+/* Same as JS_ToInt32Free() but with a 64 bit result. Return (<0, 0)
+ in case of exception */
+static int JS_ToInt64Free(JSContext *ctx, int64_t *pres, JSValue val)
+{
+ uint32_t tag;
+ int64_t ret;
+
+ redo:
+ tag = JS_VALUE_GET_NORM_TAG(val);
+ switch(tag) {
+ case JS_TAG_INT:
+ case JS_TAG_BOOL:
+ case JS_TAG_NULL:
+ case JS_TAG_UNDEFINED:
+ ret = JS_VALUE_GET_INT(val);
+ break;
+ case JS_TAG_FLOAT64:
+ {
+ JSFloat64Union u;
+ double d;
+ int e;
+ d = JS_VALUE_GET_FLOAT64(val);
+ u.d = d;
+ /* we avoid doing fmod(x, 2^64) */
+ e = (u.u64 >> 52) & 0x7ff;
+ if (likely(e <= (1023 + 62))) {
+ /* fast case */
+ ret = (int64_t)d;
+ } else if (e <= (1023 + 62 + 53)) {
+ uint64_t v;
+ /* remainder modulo 2^64 */
+ v = (u.u64 & (((uint64_t)1 << 52) - 1)) | ((uint64_t)1 << 52);
+ ret = v << ((e - 1023) - 52);
+ /* take the sign into account */
+ if (u.u64 >> 63)
+ ret = -ret;
+ } else {
+ ret = 0; /* also handles NaN and +inf */
+ }
+ }
+ break;
+#ifdef CONFIG_BIGNUM
+ case JS_TAG_BIG_FLOAT:
+ {
+ JSBigFloat *p = JS_VALUE_GET_PTR(val);
+ bf_get_int64(&ret, &p->num, BF_GET_INT_MOD);
+ JS_FreeValue(ctx, val);
+ }
+ break;
+#endif
+ default:
+ val = JS_ToNumberFree(ctx, val);
+ if (JS_IsException(val)) {
+ *pres = 0;
+ return -1;
+ }
+ goto redo;
+ }
+ *pres = ret;
+ return 0;
+}
+
+int JS_ToInt64(JSContext *ctx, int64_t *pres, JSValueConst val)
+{
+ return JS_ToInt64Free(ctx, pres, JS_DupValue(ctx, val));
+}
+
+int JS_ToInt64Ext(JSContext *ctx, int64_t *pres, JSValueConst val)
+{
+ if (JS_IsBigInt(ctx, val))
+ return JS_ToBigInt64(ctx, pres, val);
+ else
+ return JS_ToInt64(ctx, pres, val);
+}
+
+/* return (<0, 0) in case of exception */
+static int JS_ToInt32Free(JSContext *ctx, int32_t *pres, JSValue val)
+{
+ uint32_t tag;
+ int32_t ret;
+
+ redo:
+ tag = JS_VALUE_GET_NORM_TAG(val);
+ switch(tag) {
+ case JS_TAG_INT:
+ case JS_TAG_BOOL:
+ case JS_TAG_NULL:
+ case JS_TAG_UNDEFINED:
+ ret = JS_VALUE_GET_INT(val);
+ break;
+ case JS_TAG_FLOAT64:
+ {
+ JSFloat64Union u;
+ double d;
+ int e;
+ d = JS_VALUE_GET_FLOAT64(val);
+ u.d = d;
+ /* we avoid doing fmod(x, 2^32) */
+ e = (u.u64 >> 52) & 0x7ff;
+ if (likely(e <= (1023 + 30))) {
+ /* fast case */
+ ret = (int32_t)d;
+ } else if (e <= (1023 + 30 + 53)) {
+ uint64_t v;
+ /* remainder modulo 2^32 */
+ v = (u.u64 & (((uint64_t)1 << 52) - 1)) | ((uint64_t)1 << 52);
+ v = v << ((e - 1023) - 52 + 32);
+ ret = v >> 32;
+ /* take the sign into account */
+ if (u.u64 >> 63)
+ ret = -ret;
+ } else {
+ ret = 0; /* also handles NaN and +inf */
+ }
+ }
+ break;
+#ifdef CONFIG_BIGNUM
+ case JS_TAG_BIG_FLOAT:
+ {
+ JSBigFloat *p = JS_VALUE_GET_PTR(val);
+ bf_get_int32(&ret, &p->num, BF_GET_INT_MOD);
+ JS_FreeValue(ctx, val);
+ }
+ break;
+#endif
+ default:
+ val = JS_ToNumberFree(ctx, val);
+ if (JS_IsException(val)) {
+ *pres = 0;
+ return -1;
+ }
+ goto redo;
+ }
+ *pres = ret;
+ return 0;
+}
+
+int JS_ToInt32(JSContext *ctx, int32_t *pres, JSValueConst val)
+{
+ return JS_ToInt32Free(ctx, pres, JS_DupValue(ctx, val));
+}
+
+static inline int JS_ToUint32Free(JSContext *ctx, uint32_t *pres, JSValue val)
+{
+ return JS_ToInt32Free(ctx, (int32_t *)pres, val);
+}
+
+static int JS_ToUint8ClampFree(JSContext *ctx, int32_t *pres, JSValue val)
+{
+ uint32_t tag;
+ int res;
+
+ redo:
+ tag = JS_VALUE_GET_NORM_TAG(val);
+ switch(tag) {
+ case JS_TAG_INT:
+ case JS_TAG_BOOL:
+ case JS_TAG_NULL:
+ case JS_TAG_UNDEFINED:
+ res = JS_VALUE_GET_INT(val);
+#ifdef CONFIG_BIGNUM
+ int_clamp:
+#endif
+ res = max_int(0, min_int(255, res));
+ break;
+ case JS_TAG_FLOAT64:
+ {
+ double d = JS_VALUE_GET_FLOAT64(val);
+ if (isnan(d)) {
+ res = 0;
+ } else {
+ if (d < 0)
+ res = 0;
+ else if (d > 255)
+ res = 255;
+ else
+ res = lrint(d);
+ }
+ }
+ break;
+#ifdef CONFIG_BIGNUM
+ case JS_TAG_BIG_FLOAT:
+ {
+ JSBigFloat *p = JS_VALUE_GET_PTR(val);
+ bf_t r_s, *r = &r_s;
+ bf_init(ctx->bf_ctx, r);
+ bf_set(r, &p->num);
+ bf_rint(r, BF_RNDN);
+ bf_get_int32(&res, r, 0);
+ bf_delete(r);
+ JS_FreeValue(ctx, val);
+ }
+ goto int_clamp;
+#endif
+ default:
+ val = JS_ToNumberFree(ctx, val);
+ if (JS_IsException(val)) {
+ *pres = 0;
+ return -1;
+ }
+ goto redo;
+ }
+ *pres = res;
+ return 0;
+}
+
+static __exception int JS_ToArrayLengthFree(JSContext *ctx, uint32_t *plen,
+ JSValue val, BOOL is_array_ctor)
+{
+ uint32_t tag, len;
+
+ tag = JS_VALUE_GET_TAG(val);
+ switch(tag) {
+ case JS_TAG_INT:
+ case JS_TAG_BOOL:
+ case JS_TAG_NULL:
+ {
+ int v;
+ v = JS_VALUE_GET_INT(val);
+ if (v < 0)
+ goto fail;
+ len = v;
+ }
+ break;
+ case JS_TAG_BIG_INT:
+#ifdef CONFIG_BIGNUM
+ case JS_TAG_BIG_FLOAT:
+#endif
+ {
+ JSBigFloat *p = JS_VALUE_GET_PTR(val);
+ bf_t a;
+ BOOL res;
+ bf_get_int32((int32_t *)&len, &p->num, BF_GET_INT_MOD);
+ bf_init(ctx->bf_ctx, &a);
+ bf_set_ui(&a, len);
+ res = bf_cmp_eq(&a, &p->num);
+ bf_delete(&a);
+ JS_FreeValue(ctx, val);
+ if (!res)
+ goto fail;
+ }
+ break;
+ default:
+ if (JS_TAG_IS_FLOAT64(tag)) {
+ double d;
+ d = JS_VALUE_GET_FLOAT64(val);
+ if (!(d >= 0 && d <= UINT32_MAX))
+ goto fail;
+ len = (uint32_t)d;
+ if (len != d)
+ goto fail;
+ } else {
+ uint32_t len1;
+
+ if (is_array_ctor) {
+ val = JS_ToNumberFree(ctx, val);
+ if (JS_IsException(val))
+ return -1;
+ /* cannot recurse because val is a number */
+ if (JS_ToArrayLengthFree(ctx, &len, val, TRUE))
+ return -1;
+ } else {
+ /* legacy behavior: must do the conversion twice and compare */
+ if (JS_ToUint32(ctx, &len, val)) {
+ JS_FreeValue(ctx, val);
+ return -1;
+ }
+ val = JS_ToNumberFree(ctx, val);
+ if (JS_IsException(val))
+ return -1;
+ /* cannot recurse because val is a number */
+ if (JS_ToArrayLengthFree(ctx, &len1, val, FALSE))
+ return -1;
+ if (len1 != len) {
+ fail:
+ JS_ThrowRangeError(ctx, "invalid array length");
+ return -1;
+ }
+ }
+ }
+ break;
+ }
+ *plen = len;
+ return 0;
+}
+
+#define MAX_SAFE_INTEGER (((int64_t)1 << 53) - 1)
+
+static BOOL is_safe_integer(double d)
+{
+ return isfinite(d) && floor(d) == d &&
+ fabs(d) <= (double)MAX_SAFE_INTEGER;
+}
+
+int JS_ToIndex(JSContext *ctx, uint64_t *plen, JSValueConst val)
+{
+ int64_t v;
+ if (JS_ToInt64Sat(ctx, &v, val))
+ return -1;
+ if (v < 0 || v > MAX_SAFE_INTEGER) {
+ JS_ThrowRangeError(ctx, "invalid array index");
+ *plen = 0;
+ return -1;
+ }
+ *plen = v;
+ return 0;
+}
+
+/* convert a value to a length between 0 and MAX_SAFE_INTEGER.
+ return -1 for exception */
+static __exception int JS_ToLengthFree(JSContext *ctx, int64_t *plen,
+ JSValue val)
+{
+ int res = JS_ToInt64Clamp(ctx, plen, val, 0, MAX_SAFE_INTEGER, 0);
+ JS_FreeValue(ctx, val);
+ return res;
+}
+
+/* Note: can return an exception */
+static int JS_NumberIsInteger(JSContext *ctx, JSValueConst val)
+{
+ double d;
+ if (!JS_IsNumber(val))
+ return FALSE;
+ if (unlikely(JS_ToFloat64(ctx, &d, val)))
+ return -1;
+ return isfinite(d) && floor(d) == d;
+}
+
+static BOOL JS_NumberIsNegativeOrMinusZero(JSContext *ctx, JSValueConst val)
+{
+ uint32_t tag;
+
+ tag = JS_VALUE_GET_NORM_TAG(val);
+ switch(tag) {
+ case JS_TAG_INT:
+ {
+ int v;
+ v = JS_VALUE_GET_INT(val);
+ return (v < 0);
+ }
+ case JS_TAG_FLOAT64:
+ {
+ JSFloat64Union u;
+ u.d = JS_VALUE_GET_FLOAT64(val);
+ return (u.u64 >> 63);
+ }
+ case JS_TAG_BIG_INT:
+ {
+ JSBigFloat *p = JS_VALUE_GET_PTR(val);
+ /* Note: integer zeros are not necessarily positive */
+ return p->num.sign && !bf_is_zero(&p->num);
+ }
+#ifdef CONFIG_BIGNUM
+ case JS_TAG_BIG_FLOAT:
+ {
+ JSBigFloat *p = JS_VALUE_GET_PTR(val);
+ return p->num.sign;
+ }
+ break;
+ case JS_TAG_BIG_DECIMAL:
+ {
+ JSBigDecimal *p = JS_VALUE_GET_PTR(val);
+ return p->num.sign;
+ }
+ break;
+#endif
+ default:
+ return FALSE;
+ }
+}
+
+static JSValue js_bigint_to_string1(JSContext *ctx, JSValueConst val, int radix)
+{
+ JSValue ret;
+ bf_t a_s, *a;
+ char *str;
+ int saved_sign;
+
+ a = JS_ToBigInt(ctx, &a_s, val);
+ if (!a)
+ return JS_EXCEPTION;
+ saved_sign = a->sign;
+ if (a->expn == BF_EXP_ZERO)
+ a->sign = 0;
+ str = bf_ftoa(NULL, a, radix, 0, BF_RNDZ | BF_FTOA_FORMAT_FRAC |
+ BF_FTOA_JS_QUIRKS);
+ a->sign = saved_sign;
+ JS_FreeBigInt(ctx, a, &a_s);
+ if (!str)
+ return JS_ThrowOutOfMemory(ctx);
+ ret = JS_NewString(ctx, str);
+ bf_free(ctx->bf_ctx, str);
+ return ret;
+}
+
+static JSValue js_bigint_to_string(JSContext *ctx, JSValueConst val)
+{
+ return js_bigint_to_string1(ctx, val, 10);
+}
+
+#ifdef CONFIG_BIGNUM
+
+static JSValue js_ftoa(JSContext *ctx, JSValueConst val1, int radix,
+ limb_t prec, bf_flags_t flags)
+{
+ JSValue val, ret;
+ bf_t a_s, *a;
+ char *str;
+ int saved_sign;
+
+ val = JS_ToNumeric(ctx, val1);
+ if (JS_IsException(val))
+ return val;
+ a = JS_ToBigFloat(ctx, &a_s, val);
+ if (!a) {
+ JS_FreeValue(ctx, val);
+ return JS_EXCEPTION;
+ }
+ saved_sign = a->sign;
+ if (a->expn == BF_EXP_ZERO)
+ a->sign = 0;
+ flags |= BF_FTOA_JS_QUIRKS;
+ if ((flags & BF_FTOA_FORMAT_MASK) == BF_FTOA_FORMAT_FREE_MIN) {
+ /* Note: for floating point numbers with a radix which is not
+ a power of two, the current precision is used to compute
+ the number of digits. */
+ if ((radix & (radix - 1)) != 0) {
+ bf_t r_s, *r = &r_s;
+ int prec, flags1;
+ /* must round first */
+ if (JS_VALUE_GET_TAG(val) == JS_TAG_BIG_FLOAT) {
+ prec = ctx->fp_env.prec;
+ flags1 = ctx->fp_env.flags &
+ (BF_FLAG_SUBNORMAL | (BF_EXP_BITS_MASK << BF_EXP_BITS_SHIFT));
+ } else {
+ prec = 53;
+ flags1 = bf_set_exp_bits(11) | BF_FLAG_SUBNORMAL;
+ }
+ bf_init(ctx->bf_ctx, r);
+ bf_set(r, a);
+ bf_round(r, prec, flags1 | BF_RNDN);
+ str = bf_ftoa(NULL, r, radix, prec, flags1 | flags);
+ bf_delete(r);
+ } else {
+ str = bf_ftoa(NULL, a, radix, BF_PREC_INF, flags);
+ }
+ } else {
+ str = bf_ftoa(NULL, a, radix, prec, flags);
+ }
+ a->sign = saved_sign;
+ if (a == &a_s)
+ bf_delete(a);
+ JS_FreeValue(ctx, val);
+ if (!str)
+ return JS_ThrowOutOfMemory(ctx);
+ ret = JS_NewString(ctx, str);
+ bf_free(ctx->bf_ctx, str);
+ return ret;
+}
+
+static JSValue js_bigfloat_to_string(JSContext *ctx, JSValueConst val)
+{
+ return js_ftoa(ctx, val, 10, 0, BF_RNDN | BF_FTOA_FORMAT_FREE_MIN);
+}
+
+static JSValue js_bigdecimal_to_string1(JSContext *ctx, JSValueConst val,
+ limb_t prec, int flags)
+{
+ JSValue ret;
+ bfdec_t *a;
+ char *str;
+ int saved_sign;
+
+ a = JS_ToBigDecimal(ctx, val);
+ if (!a)
+ return JS_EXCEPTION;
+ saved_sign = a->sign;
+ if (a->expn == BF_EXP_ZERO)
+ a->sign = 0;
+ str = bfdec_ftoa(NULL, a, prec, flags | BF_FTOA_JS_QUIRKS);
+ a->sign = saved_sign;
+ if (!str)
+ return JS_ThrowOutOfMemory(ctx);
+ ret = JS_NewString(ctx, str);
+ bf_free(ctx->bf_ctx, str);
+ return ret;
+}
+
+static JSValue js_bigdecimal_to_string(JSContext *ctx, JSValueConst val)
+{
+ return js_bigdecimal_to_string1(ctx, val, 0,
+ BF_RNDZ | BF_FTOA_FORMAT_FREE);
+}
+
+#endif /* CONFIG_BIGNUM */
+
+/* 2 <= base <= 36 */
+static char const digits[36] = "0123456789abcdefghijklmnopqrstuvwxyz";
+
+static char *i64toa(char *buf_end, int64_t n, unsigned int base)
+{
+ char *q = buf_end;
+ int digit, is_neg;
+
+ is_neg = 0;
+ if (n < 0) {
+ is_neg = 1;
+ n = -n;
+ }
+ *--q = '\0';
+ if (base == 10) {
+ /* division by known base uses multiplication */
+ do {
+ digit = (uint64_t)n % 10;
+ n = (uint64_t)n / 10;
+ *--q = '0' + digit;
+ } while (n != 0);
+ } else {
+ do {
+ digit = (uint64_t)n % base;
+ n = (uint64_t)n / base;
+ *--q = digits[digit];
+ } while (n != 0);
+ }
+ if (is_neg)
+ *--q = '-';
+ return q;
+}
+
+/* buf1 contains the printf result */
+static void js_ecvt1(double d, int n_digits, int *decpt, int *sign, char *buf,
+ int rounding_mode, char *buf1, int buf1_size)
+{
+ if (rounding_mode != FE_TONEAREST)
+ fesetround(rounding_mode);
+ snprintf(buf1, buf1_size, "%+.*e", n_digits - 1, d);
+ if (rounding_mode != FE_TONEAREST)
+ fesetround(FE_TONEAREST);
+ *sign = (buf1[0] == '-');
+ /* mantissa */
+ buf[0] = buf1[1];
+ if (n_digits > 1)
+ memcpy(buf + 1, buf1 + 3, n_digits - 1);
+ buf[n_digits] = '\0';
+ /* exponent */
+ *decpt = atoi(buf1 + n_digits + 2 + (n_digits > 1)) + 1;
+}
+
+/* maximum buffer size for js_dtoa */
+#define JS_DTOA_BUF_SIZE 128
+
+/* needed because ecvt usually limits the number of digits to
+ 17. Return the number of digits. */
+static int js_ecvt(double d, int n_digits, int *decpt, int *sign, char *buf,
+ BOOL is_fixed)
+{
+ int rounding_mode;
+ char buf_tmp[JS_DTOA_BUF_SIZE];
+
+ if (!is_fixed) {
+ unsigned int n_digits_min, n_digits_max;
+ /* find the minimum amount of digits (XXX: inefficient but simple) */
+ n_digits_min = 1;
+ n_digits_max = 17;
+ while (n_digits_min < n_digits_max) {
+ n_digits = (n_digits_min + n_digits_max) / 2;
+ js_ecvt1(d, n_digits, decpt, sign, buf, FE_TONEAREST,
+ buf_tmp, sizeof(buf_tmp));
+ if (strtod(buf_tmp, NULL) == d) {
+ /* no need to keep the trailing zeros */
+ while (n_digits >= 2 && buf[n_digits - 1] == '0')
+ n_digits--;
+ n_digits_max = n_digits;
+ } else {
+ n_digits_min = n_digits + 1;
+ }
+ }
+ n_digits = n_digits_max;
+ rounding_mode = FE_TONEAREST;
+ } else {
+ rounding_mode = FE_TONEAREST;
+#ifdef CONFIG_PRINTF_RNDN
+ {
+ char buf1[JS_DTOA_BUF_SIZE], buf2[JS_DTOA_BUF_SIZE];
+ int decpt1, sign1, decpt2, sign2;
+ /* The JS rounding is specified as round to nearest ties away
+ from zero (RNDNA), but in printf the "ties" case is not
+ specified (for example it is RNDN for glibc, RNDNA for
+ Windows), so we must round manually. */
+ js_ecvt1(d, n_digits + 1, &decpt1, &sign1, buf1, FE_TONEAREST,
+ buf_tmp, sizeof(buf_tmp));
+ /* XXX: could use 2 digits to reduce the average running time */
+ if (buf1[n_digits] == '5') {
+ js_ecvt1(d, n_digits + 1, &decpt1, &sign1, buf1, FE_DOWNWARD,
+ buf_tmp, sizeof(buf_tmp));
+ js_ecvt1(d, n_digits + 1, &decpt2, &sign2, buf2, FE_UPWARD,
+ buf_tmp, sizeof(buf_tmp));
+ if (memcmp(buf1, buf2, n_digits + 1) == 0 && decpt1 == decpt2) {
+ /* exact result: round away from zero */
+ if (sign1)
+ rounding_mode = FE_DOWNWARD;
+ else
+ rounding_mode = FE_UPWARD;
+ }
+ }
+ }
+#endif /* CONFIG_PRINTF_RNDN */
+ }
+ js_ecvt1(d, n_digits, decpt, sign, buf, rounding_mode,
+ buf_tmp, sizeof(buf_tmp));
+ return n_digits;
+}
+
+static int js_fcvt1(char (*buf)[JS_DTOA_BUF_SIZE], double d, int n_digits,
+ int rounding_mode)
+{
+ int n;
+ if (rounding_mode != FE_TONEAREST)
+ fesetround(rounding_mode);
+ n = snprintf(*buf, sizeof(*buf), "%.*f", n_digits, d);
+ if (rounding_mode != FE_TONEAREST)
+ fesetround(FE_TONEAREST);
+ assert(n < sizeof(*buf));
+ return n;
+}
+
+static void js_fcvt(char (*buf)[JS_DTOA_BUF_SIZE], double d, int n_digits)
+{
+ int rounding_mode;
+ rounding_mode = FE_TONEAREST;
+#ifdef CONFIG_PRINTF_RNDN
+ {
+ int n1, n2;
+ char buf1[JS_DTOA_BUF_SIZE];
+ char buf2[JS_DTOA_BUF_SIZE];
+
+ /* The JS rounding is specified as round to nearest ties away from
+ zero (RNDNA), but in printf the "ties" case is not specified
+ (for example it is RNDN for glibc, RNDNA for Windows), so we
+ must round manually. */
+ n1 = js_fcvt1(&buf1, d, n_digits + 1, FE_TONEAREST);
+ rounding_mode = FE_TONEAREST;
+ /* XXX: could use 2 digits to reduce the average running time */
+ if (buf1[n1 - 1] == '5') {
+ n1 = js_fcvt1(&buf1, d, n_digits + 1, FE_DOWNWARD);
+ n2 = js_fcvt1(&buf2, d, n_digits + 1, FE_UPWARD);
+ if (n1 == n2 && memcmp(buf1, buf2, n1) == 0) {
+ /* exact result: round away from zero */
+ if (buf1[0] == '-')
+ rounding_mode = FE_DOWNWARD;
+ else
+ rounding_mode = FE_UPWARD;
+ }
+ }
+ }
+#endif /* CONFIG_PRINTF_RNDN */
+ js_fcvt1(buf, d, n_digits, rounding_mode);
+}
+
+/* radix != 10 is only supported with flags = JS_DTOA_VAR_FORMAT */
+/* use as many digits as necessary */
+#define JS_DTOA_VAR_FORMAT (0 << 0)
+/* use n_digits significant digits (1 <= n_digits <= 101) */
+#define JS_DTOA_FIXED_FORMAT (1 << 0)
+/* force fractional format: [-]dd.dd with n_digits fractional digits */
+#define JS_DTOA_FRAC_FORMAT (2 << 0)
+/* force exponential notation either in fixed or variable format */
+#define JS_DTOA_FORCE_EXP (1 << 2)
+
+/* XXX: slow and maybe not fully correct. Use libbf when it is fast enough.
+ XXX: radix != 10 is only supported for small integers
+*/
+static void js_dtoa1(char (*buf)[JS_DTOA_BUF_SIZE], double d,
+ int radix, int n_digits, int flags)
+{
+ char *q;
+
+ if (!isfinite(d)) {
+ if (isnan(d)) {
+ pstrcpy(*buf, sizeof(*buf), "NaN");
+ } else if (d < 0) {
+ pstrcpy(*buf, sizeof(*buf), "-Infinity");
+ } else {
+ pstrcpy(*buf, sizeof(*buf), "Infinity");
+ }
+ } else if (flags == JS_DTOA_VAR_FORMAT) {
+ int64_t i64;
+ char buf1[70], *ptr;
+ if (d > (double)MAX_SAFE_INTEGER || d < (double)-MAX_SAFE_INTEGER)
+ goto generic_conv;
+ i64 = (int64_t)d;
+ if (d != i64)
+ goto generic_conv;
+ /* fast path for integers */
+ ptr = i64toa(buf1 + sizeof(buf1), i64, radix);
+ pstrcpy(*buf, sizeof(*buf), ptr);
+ } else {
+ if (d == 0.0)
+ d = 0.0; /* convert -0 to 0 */
+ if (flags == JS_DTOA_FRAC_FORMAT) {
+ js_fcvt(buf, d, n_digits);
+ } else {
+ char buf1[JS_DTOA_BUF_SIZE];
+ int sign, decpt, k, n, i, p, n_max;
+ BOOL is_fixed;
+ generic_conv:
+ is_fixed = ((flags & 3) == JS_DTOA_FIXED_FORMAT);
+ if (is_fixed) {
+ n_max = n_digits;
+ } else {
+ n_max = 21;
+ }
+ /* the number has k digits (k >= 1) */
+ k = js_ecvt(d, n_digits, &decpt, &sign, buf1, is_fixed);
+ n = decpt; /* d=10^(n-k)*(buf1) i.e. d= < x.yyyy 10^(n-1) */
+ q = *buf;
+ if (sign)
+ *q++ = '-';
+ if (flags & JS_DTOA_FORCE_EXP)
+ goto force_exp;
+ if (n >= 1 && n <= n_max) {
+ if (k <= n) {
+ memcpy(q, buf1, k);
+ q += k;
+ for(i = 0; i < (n - k); i++)
+ *q++ = '0';
+ *q = '\0';
+ } else {
+ /* k > n */
+ memcpy(q, buf1, n);
+ q += n;
+ *q++ = '.';
+ for(i = 0; i < (k - n); i++)
+ *q++ = buf1[n + i];
+ *q = '\0';
+ }
+ } else if (n >= -5 && n <= 0) {
+ *q++ = '0';
+ *q++ = '.';
+ for(i = 0; i < -n; i++)
+ *q++ = '0';
+ memcpy(q, buf1, k);
+ q += k;
+ *q = '\0';
+ } else {
+ force_exp:
+ /* exponential notation */
+ *q++ = buf1[0];
+ if (k > 1) {
+ *q++ = '.';
+ for(i = 1; i < k; i++)
+ *q++ = buf1[i];
+ }
+ *q++ = 'e';
+ p = n - 1;
+ if (p >= 0)
+ *q++ = '+';
+ snprintf(q, *buf + sizeof(*buf) - q, "%d", p);
+ }
+ }
+ }
+}
+
+static JSValue js_dtoa(JSContext *ctx,
+ double d, int radix, int n_digits, int flags)
+{
+ char buf[JS_DTOA_BUF_SIZE];
+ js_dtoa1(&buf, d, radix, n_digits, flags);
+ return JS_NewString(ctx, buf);
+}
+
+static JSValue js_dtoa_radix(JSContext *ctx, double d, int radix)
+{
+ char buf[2200], *ptr, *ptr2;
+ /* d is finite */
+ int sign = d < 0;
+ int digit;
+ double frac, d0;
+ int64_t n0 = 0;
+ d = fabs(d);
+ d0 = trunc(d);
+ frac = d - d0;
+ ptr = buf + 1100;
+ *ptr = '\0';
+ if (d0 <= MAX_SAFE_INTEGER) {
+ int64_t n = n0 = (int64_t)d0;
+ while (n >= radix) {
+ digit = n % radix;
+ n = n / radix;
+ *--ptr = digits[digit];
+ }
+ *--ptr = digits[(int)n];
+ } else {
+ /* no decimals */
+ while (d0 >= radix) {
+ digit = fmod(d0, radix);
+ d0 = trunc(d0 / radix);
+ if (d0 >= MAX_SAFE_INTEGER)
+ digit = 0;
+ *--ptr = digits[digit];
+ }
+ *--ptr = digits[(int)d0];
+ goto done;
+ }
+ if (frac != 0) {
+ double log2_radix = log2(radix);
+ double prec = 1023 + 51; // handle subnormals
+ ptr2 = buf + 1100;
+ *ptr2++ = '.';
+ while (frac != 0 && n0 <= MAX_SAFE_INTEGER/2 && prec > 0) {
+ frac *= radix;
+ digit = trunc(frac);
+ frac -= digit;
+ *ptr2++ = digits[digit];
+ n0 = n0 * radix + digit;
+ prec -= log2_radix;
+ }
+ *ptr2 = '\0';
+ if (frac * radix >= radix / 2) {
+ char nine = digits[radix - 1];
+ // round to closest
+ while (ptr2[-1] == nine)
+ *--ptr2 = '\0';
+ if (ptr2[-1] == '.') {
+ *--ptr2 = '\0';
+ while (ptr2[-1] == nine)
+ *--ptr2 = '0';
+ }
+ if (ptr2 - 1 == ptr)
+ *--ptr = '1';
+ else
+ ptr2[-1] += 1;
+ } else {
+ while (ptr2[-1] == '0')
+ *--ptr2 = '\0';
+ if (ptr2[-1] == '.')
+ *--ptr2 = '\0';
+ }
+ }
+done:
+ ptr[-1] = '-';
+ ptr -= sign;
+ return JS_NewString(ctx, ptr);
+}
+
+JSValue JS_ToStringInternal(JSContext *ctx, JSValueConst val, BOOL is_ToPropertyKey)
+{
+ uint32_t tag;
+ const char *str;
+ char buf[32];
+
+ tag = JS_VALUE_GET_NORM_TAG(val);
+ switch(tag) {
+ case JS_TAG_STRING:
+ return JS_DupValue(ctx, val);
+ case JS_TAG_INT:
+ snprintf(buf, sizeof(buf), "%d", JS_VALUE_GET_INT(val));
+ str = buf;
+ goto new_string;
+ case JS_TAG_BOOL:
+ return JS_AtomToString(ctx, JS_VALUE_GET_BOOL(val) ?
+ JS_ATOM_true : JS_ATOM_false);
+ case JS_TAG_NULL:
+ return JS_AtomToString(ctx, JS_ATOM_null);
+ case JS_TAG_UNDEFINED:
+ return JS_AtomToString(ctx, JS_ATOM_undefined);
+ case JS_TAG_EXCEPTION:
+ return JS_EXCEPTION;
+ case JS_TAG_OBJECT:
+ {
+ JSValue val1, ret;
+ val1 = JS_ToPrimitive(ctx, val, HINT_STRING);
+ if (JS_IsException(val1))
+ return val1;
+ ret = JS_ToStringInternal(ctx, val1, is_ToPropertyKey);
+ JS_FreeValue(ctx, val1);
+ return ret;
+ }
+ break;
+ case JS_TAG_FUNCTION_BYTECODE:
+ str = "[function bytecode]";
+ goto new_string;
+ case JS_TAG_SYMBOL:
+ if (is_ToPropertyKey) {
+ return JS_DupValue(ctx, val);
+ } else {
+ return JS_ThrowTypeError(ctx, "cannot convert symbol to string");
+ }
+ case JS_TAG_FLOAT64:
+ return js_dtoa(ctx, JS_VALUE_GET_FLOAT64(val), 10, 0,
+ JS_DTOA_VAR_FORMAT);
+ case JS_TAG_BIG_INT:
+ return ctx->rt->bigint_ops.to_string(ctx, val);
+#ifdef CONFIG_BIGNUM
+ case JS_TAG_BIG_FLOAT:
+ return ctx->rt->bigfloat_ops.to_string(ctx, val);
+ case JS_TAG_BIG_DECIMAL:
+ return ctx->rt->bigdecimal_ops.to_string(ctx, val);
+#endif
+ default:
+ str = "[unsupported type]";
+ new_string:
+ return JS_NewString(ctx, str);
+ }
+}
+
+JSValue JS_ToString(JSContext *ctx, JSValueConst val)
+{
+ return JS_ToStringInternal(ctx, val, FALSE);
+}
+
+static JSValue JS_ToStringFree(JSContext *ctx, JSValue val)
+{
+ JSValue ret;
+ ret = JS_ToString(ctx, val);
+ JS_FreeValue(ctx, val);
+ return ret;
+}
+
+static JSValue JS_ToLocaleStringFree(JSContext *ctx, JSValue val)
+{
+ if (JS_IsUndefined(val) || JS_IsNull(val))
+ return JS_ToStringFree(ctx, val);
+ return JS_InvokeFree(ctx, val, JS_ATOM_toLocaleString, 0, NULL);
+}
+
+JSValue JS_ToPropertyKey(JSContext *ctx, JSValueConst val)
+{
+ return JS_ToStringInternal(ctx, val, TRUE);
+}
+
+static JSValue JS_ToStringCheckObject(JSContext *ctx, JSValueConst val)
+{
+ uint32_t tag = JS_VALUE_GET_TAG(val);
+ if (tag == JS_TAG_NULL || tag == JS_TAG_UNDEFINED)
+ return JS_ThrowTypeError(ctx, "null or undefined are forbidden");
+ return JS_ToString(ctx, val);
+}
+
+static JSValue JS_ToQuotedString(JSContext *ctx, JSValueConst val1)
+{
+ JSValue val;
+ JSString *p;
+ int i;
+ uint32_t c;
+ StringBuffer b_s, *b = &b_s;
+ char buf[16];
+
+ val = JS_ToStringCheckObject(ctx, val1);
+ if (JS_IsException(val))
+ return val;
+ p = JS_VALUE_GET_STRING(val);
+
+ if (string_buffer_init(ctx, b, p->len + 2))
+ goto fail;
+
+ if (string_buffer_putc8(b, '\"'))
+ goto fail;
+ for(i = 0; i < p->len; ) {
+ c = string_getc(p, &i);
+ switch(c) {
+ case '\t':
+ c = 't';
+ goto quote;
+ case '\r':
+ c = 'r';
+ goto quote;
+ case '\n':
+ c = 'n';
+ goto quote;
+ case '\b':
+ c = 'b';
+ goto quote;
+ case '\f':
+ c = 'f';
+ goto quote;
+ case '\"':
+ case '\\':
+ quote:
+ if (string_buffer_putc8(b, '\\'))
+ goto fail;
+ if (string_buffer_putc8(b, c))
+ goto fail;
+ break;
+ default:
+ if (c < 32 || is_surrogate(c)) {
+ snprintf(buf, sizeof(buf), "\\u%04x", c);
+ if (string_buffer_puts8(b, buf))
+ goto fail;
+ } else {
+ if (string_buffer_putc(b, c))
+ goto fail;
+ }
+ break;
+ }
+ }
+ if (string_buffer_putc8(b, '\"'))
+ goto fail;
+ JS_FreeValue(ctx, val);
+ return string_buffer_end(b);
+ fail:
+ JS_FreeValue(ctx, val);
+ string_buffer_free(b);
+ return JS_EXCEPTION;
+}
+
+static __maybe_unused void JS_DumpObjectHeader(JSRuntime *rt)
+{
+ printf("%14s %4s %4s %14s %10s %s\n",
+ "ADDRESS", "REFS", "SHRF", "PROTO", "CLASS", "PROPS");
+}
+
+/* for debug only: dump an object without side effect */
+static __maybe_unused void JS_DumpObject(JSRuntime *rt, JSObject *p)
+{
+ uint32_t i;
+ char atom_buf[ATOM_GET_STR_BUF_SIZE];
+ JSShape *sh;
+ JSShapeProperty *prs;
+ JSProperty *pr;
+ BOOL is_first = TRUE;
+
+ /* XXX: should encode atoms with special characters */
+ sh = p->shape; /* the shape can be NULL while freeing an object */
+ printf("%14p %4d ",
+ (void *)p,
+ p->header.ref_count);
+ if (sh) {
+ printf("%3d%c %14p ",
+ sh->header.ref_count,
+ " *"[sh->is_hashed],
+ (void *)sh->proto);
+ } else {
+ printf("%3s %14s ", "-", "-");
+ }
+ printf("%10s ",
+ JS_AtomGetStrRT(rt, atom_buf, sizeof(atom_buf), rt->class_array[p->class_id].class_name));
+ if (p->is_exotic && p->fast_array) {
+ printf("[ ");
+ for(i = 0; i < p->u.array.count; i++) {
+ if (i != 0)
+ printf(", ");
+ switch (p->class_id) {
+ case JS_CLASS_ARRAY:
+ case JS_CLASS_ARGUMENTS:
+ JS_DumpValueShort(rt, p->u.array.u.values[i]);
+ break;
+ case JS_CLASS_UINT8C_ARRAY:
+ case JS_CLASS_INT8_ARRAY:
+ case JS_CLASS_UINT8_ARRAY:
+ case JS_CLASS_INT16_ARRAY:
+ case JS_CLASS_UINT16_ARRAY:
+ case JS_CLASS_INT32_ARRAY:
+ case JS_CLASS_UINT32_ARRAY:
+ case JS_CLASS_BIG_INT64_ARRAY:
+ case JS_CLASS_BIG_UINT64_ARRAY:
+ case JS_CLASS_FLOAT32_ARRAY:
+ case JS_CLASS_FLOAT64_ARRAY:
+ {
+ int size = 1 << typed_array_size_log2(p->class_id);
+ const uint8_t *b = p->u.array.u.uint8_ptr + i * size;
+ while (size-- > 0)
+ printf("%02X", *b++);
+ }
+ break;
+ }
+ }
+ printf(" ] ");
+ }
+
+ if (sh) {
+ printf("{ ");
+ for(i = 0, prs = get_shape_prop(sh); i < sh->prop_count; i++, prs++) {
+ if (prs->atom != JS_ATOM_NULL) {
+ pr = &p->prop[i];
+ if (!is_first)
+ printf(", ");
+ printf("%s: ",
+ JS_AtomGetStrRT(rt, atom_buf, sizeof(atom_buf), prs->atom));
+ if ((prs->flags & JS_PROP_TMASK) == JS_PROP_GETSET) {
+ printf("[getset %p %p]", (void *)pr->u.getset.getter,
+ (void *)pr->u.getset.setter);
+ } else if ((prs->flags & JS_PROP_TMASK) == JS_PROP_VARREF) {
+ printf("[varref %p]", (void *)pr->u.var_ref);
+ } else if ((prs->flags & JS_PROP_TMASK) == JS_PROP_AUTOINIT) {
+ printf("[autoinit %p %d %p]",
+ (void *)js_autoinit_get_realm(pr),
+ js_autoinit_get_id(pr),
+ (void *)pr->u.init.opaque);
+ } else {
+ JS_DumpValueShort(rt, pr->u.value);
+ }
+ is_first = FALSE;
+ }
+ }
+ printf(" }");
+ }
+
+ if (js_class_has_bytecode(p->class_id)) {
+ JSFunctionBytecode *b = p->u.func.function_bytecode;
+ JSVarRef **var_refs;
+ if (b->closure_var_count) {
+ var_refs = p->u.func.var_refs;
+ printf(" Closure:");
+ for(i = 0; i < b->closure_var_count; i++) {
+ printf(" ");
+ JS_DumpValueShort(rt, var_refs[i]->value);
+ }
+ if (p->u.func.home_object) {
+ printf(" HomeObject: ");
+ JS_DumpValueShort(rt, JS_MKPTR(JS_TAG_OBJECT, p->u.func.home_object));
+ }
+ }
+ }
+ printf("\n");
+}
+
+static __maybe_unused void JS_DumpGCObject(JSRuntime *rt, JSGCObjectHeader *p)
+{
+ if (p->gc_obj_type == JS_GC_OBJ_TYPE_JS_OBJECT) {
+ JS_DumpObject(rt, (JSObject *)p);
+ } else {
+ printf("%14p %4d ",
+ (void *)p,
+ p->ref_count);
+ switch(p->gc_obj_type) {
+ case JS_GC_OBJ_TYPE_FUNCTION_BYTECODE:
+ printf("[function bytecode]");
+ break;
+ case JS_GC_OBJ_TYPE_SHAPE:
+ printf("[shape]");
+ break;
+ case JS_GC_OBJ_TYPE_VAR_REF:
+ printf("[var_ref]");
+ break;
+ case JS_GC_OBJ_TYPE_ASYNC_FUNCTION:
+ printf("[async_function]");
+ break;
+ case JS_GC_OBJ_TYPE_JS_CONTEXT:
+ printf("[js_context]");
+ break;
+ default:
+ printf("[unknown %d]", p->gc_obj_type);
+ break;
+ }
+ printf("\n");
+ }
+}
+
+static __maybe_unused void JS_DumpValueShort(JSRuntime *rt,
+ JSValueConst val)
+{
+ uint32_t tag = JS_VALUE_GET_NORM_TAG(val);
+ const char *str;
+
+ switch(tag) {
+ case JS_TAG_INT:
+ printf("%d", JS_VALUE_GET_INT(val));
+ break;
+ case JS_TAG_BOOL:
+ if (JS_VALUE_GET_BOOL(val))
+ str = "true";
+ else
+ str = "false";
+ goto print_str;
+ case JS_TAG_NULL:
+ str = "null";
+ goto print_str;
+ case JS_TAG_EXCEPTION:
+ str = "exception";
+ goto print_str;
+ case JS_TAG_UNINITIALIZED:
+ str = "uninitialized";
+ goto print_str;
+ case JS_TAG_UNDEFINED:
+ str = "undefined";
+ print_str:
+ printf("%s", str);
+ break;
+ case JS_TAG_FLOAT64:
+ printf("%.14g", JS_VALUE_GET_FLOAT64(val));
+ break;
+ case JS_TAG_BIG_INT:
+ {
+ JSBigFloat *p = JS_VALUE_GET_PTR(val);
+ char *str;
+ str = bf_ftoa(NULL, &p->num, 10, 0,
+ BF_RNDZ | BF_FTOA_FORMAT_FRAC);
+ printf("%sn", str);
+ bf_realloc(&rt->bf_ctx, str, 0);
+ }
+ break;
+#ifdef CONFIG_BIGNUM
+ case JS_TAG_BIG_FLOAT:
+ {
+ JSBigFloat *p = JS_VALUE_GET_PTR(val);
+ char *str;
+ str = bf_ftoa(NULL, &p->num, 16, BF_PREC_INF,
+ BF_RNDZ | BF_FTOA_FORMAT_FREE | BF_FTOA_ADD_PREFIX);
+ printf("%sl", str);
+ bf_free(&rt->bf_ctx, str);
+ }
+ break;
+ case JS_TAG_BIG_DECIMAL:
+ {
+ JSBigDecimal *p = JS_VALUE_GET_PTR(val);
+ char *str;
+ str = bfdec_ftoa(NULL, &p->num, BF_PREC_INF,
+ BF_RNDZ | BF_FTOA_FORMAT_FREE);
+ printf("%sm", str);
+ bf_free(&rt->bf_ctx, str);
+ }
+ break;
+#endif
+ case JS_TAG_STRING:
+ {
+ JSString *p;
+ p = JS_VALUE_GET_STRING(val);
+ JS_DumpString(rt, p);
+ }
+ break;
+ case JS_TAG_FUNCTION_BYTECODE:
+ {
+ JSFunctionBytecode *b = JS_VALUE_GET_PTR(val);
+ char buf[ATOM_GET_STR_BUF_SIZE];
+ printf("[bytecode %s]", JS_AtomGetStrRT(rt, buf, sizeof(buf), b->func_name));
+ }
+ break;
+ case JS_TAG_OBJECT:
+ {
+ JSObject *p = JS_VALUE_GET_OBJ(val);
+ JSAtom atom = rt->class_array[p->class_id].class_name;
+ char atom_buf[ATOM_GET_STR_BUF_SIZE];
+ printf("[%s %p]",
+ JS_AtomGetStrRT(rt, atom_buf, sizeof(atom_buf), atom), (void *)p);
+ }
+ break;
+ case JS_TAG_SYMBOL:
+ {
+ JSAtomStruct *p = JS_VALUE_GET_PTR(val);
+ char atom_buf[ATOM_GET_STR_BUF_SIZE];
+ printf("Symbol(%s)",
+ JS_AtomGetStrRT(rt, atom_buf, sizeof(atom_buf), js_get_atom_index(rt, p)));
+ }
+ break;
+ case JS_TAG_MODULE:
+ printf("[module]");
+ break;
+ default:
+ printf("[unknown tag %d]", tag);
+ break;
+ }
+}
+
+static __maybe_unused void JS_DumpValue(JSContext *ctx,
+ JSValueConst val)
+{
+ JS_DumpValueShort(ctx->rt, val);
+}
+
+static __maybe_unused void JS_PrintValue(JSContext *ctx,
+ const char *str,
+ JSValueConst val)
+{
+ printf("%s=", str);
+ JS_DumpValueShort(ctx->rt, val);
+ printf("\n");
+}
+
+/* return -1 if exception (proxy case) or TRUE/FALSE */
+int JS_IsArray(JSContext *ctx, JSValueConst val)
+{
+ JSObject *p;
+ if (JS_VALUE_GET_TAG(val) == JS_TAG_OBJECT) {
+ p = JS_VALUE_GET_OBJ(val);
+ if (unlikely(p->class_id == JS_CLASS_PROXY))
+ return js_proxy_isArray(ctx, val);
+ else
+ return p->class_id == JS_CLASS_ARRAY;
+ } else {
+ return FALSE;
+ }
+}
+
+static double js_pow(double a, double b)
+{
+ if (unlikely(!isfinite(b)) && fabs(a) == 1) {
+ /* not compatible with IEEE 754 */
+ return JS_FLOAT64_NAN;
+ } else {
+ return pow(a, b);
+ }
+}
+
+JSValue JS_NewBigInt64_1(JSContext *ctx, int64_t v)
+{
+ JSValue val;
+ bf_t *a;
+ val = JS_NewBigInt(ctx);
+ if (JS_IsException(val))
+ return val;
+ a = JS_GetBigInt(val);
+ if (bf_set_si(a, v)) {
+ JS_FreeValue(ctx, val);
+ return JS_ThrowOutOfMemory(ctx);
+ }
+ return val;
+}
+
+JSValue JS_NewBigInt64(JSContext *ctx, int64_t v)
+{
+ if (is_math_mode(ctx) &&
+ v >= -MAX_SAFE_INTEGER && v <= MAX_SAFE_INTEGER) {
+ return JS_NewInt64(ctx, v);
+ } else {
+ return JS_NewBigInt64_1(ctx, v);
+ }
+}
+
+JSValue JS_NewBigUint64(JSContext *ctx, uint64_t v)
+{
+ JSValue val;
+ if (is_math_mode(ctx) && v <= MAX_SAFE_INTEGER) {
+ val = JS_NewInt64(ctx, v);
+ } else {
+ bf_t *a;
+ val = JS_NewBigInt(ctx);
+ if (JS_IsException(val))
+ return val;
+ a = JS_GetBigInt(val);
+ if (bf_set_ui(a, v)) {
+ JS_FreeValue(ctx, val);
+ return JS_ThrowOutOfMemory(ctx);
+ }
+ }
+ return val;
+}
+
+/* return NaN if bad bigint literal */
+static JSValue JS_StringToBigInt(JSContext *ctx, JSValue val)
+{
+ const char *str, *p;
+ size_t len;
+ int flags;
+
+ str = JS_ToCStringLen(ctx, &len, val);
+ JS_FreeValue(ctx, val);
+ if (!str)
+ return JS_EXCEPTION;
+ p = str;
+ p += skip_spaces(p);
+ if ((p - str) == len) {
+ val = JS_NewBigInt64(ctx, 0);
+ } else {
+ flags = ATOD_INT_ONLY | ATOD_ACCEPT_BIN_OCT | ATOD_TYPE_BIG_INT;
+#ifdef CONFIG_BIGNUM
+ if (is_math_mode(ctx))
+ flags |= ATOD_MODE_BIGINT;
+#endif
+ val = js_atof(ctx, p, &p, 0, flags);
+ p += skip_spaces(p);
+ if (!JS_IsException(val)) {
+ if ((p - str) != len) {
+ JS_FreeValue(ctx, val);
+ val = JS_NAN;
+ }
+ }
+ }
+ JS_FreeCString(ctx, str);
+ return val;
+}
+
+static JSValue JS_StringToBigIntErr(JSContext *ctx, JSValue val)
+{
+ val = JS_StringToBigInt(ctx, val);
+ if (JS_VALUE_IS_NAN(val))
+ return JS_ThrowSyntaxError(ctx, "invalid bigint literal");
+ return val;
+}
+
+/* if the returned bigfloat is allocated it is equal to
+ 'buf'. Otherwise it is a pointer to the bigfloat in 'val'. */
+static bf_t *JS_ToBigIntFree(JSContext *ctx, bf_t *buf, JSValue val)
+{
+ uint32_t tag;
+ bf_t *r;
+ JSBigFloat *p;
+
+ redo:
+ tag = JS_VALUE_GET_NORM_TAG(val);
+ switch(tag) {
+ case JS_TAG_INT:
+ case JS_TAG_NULL:
+ case JS_TAG_UNDEFINED:
+ if (!is_math_mode(ctx))
+ goto fail;
+ /* fall tru */
+ case JS_TAG_BOOL:
+ r = buf;
+ bf_init(ctx->bf_ctx, r);
+ bf_set_si(r, JS_VALUE_GET_INT(val));
+ break;
+ case JS_TAG_FLOAT64:
+ {
+ double d = JS_VALUE_GET_FLOAT64(val);
+ if (!is_math_mode(ctx))
+ goto fail;
+ if (!isfinite(d))
+ goto fail;
+ r = buf;
+ bf_init(ctx->bf_ctx, r);
+ d = trunc(d);
+ bf_set_float64(r, d);
+ }
+ break;
+ case JS_TAG_BIG_INT:
+ p = JS_VALUE_GET_PTR(val);
+ r = &p->num;
+ break;
+#ifdef CONFIG_BIGNUM
+ case JS_TAG_BIG_FLOAT:
+ if (!is_math_mode(ctx))
+ goto fail;
+ p = JS_VALUE_GET_PTR(val);
+ if (!bf_is_finite(&p->num))
+ goto fail;
+ r = buf;
+ bf_init(ctx->bf_ctx, r);
+ bf_set(r, &p->num);
+ bf_rint(r, BF_RNDZ);
+ JS_FreeValue(ctx, val);
+ break;
+#endif
+ case JS_TAG_STRING:
+ val = JS_StringToBigIntErr(ctx, val);
+ if (JS_IsException(val))
+ return NULL;
+ goto redo;
+ case JS_TAG_OBJECT:
+ val = JS_ToPrimitiveFree(ctx, val, HINT_NUMBER);
+ if (JS_IsException(val))
+ return NULL;
+ goto redo;
+ default:
+ fail:
+ JS_FreeValue(ctx, val);
+ JS_ThrowTypeError(ctx, "cannot convert to bigint");
+ return NULL;
+ }
+ return r;
+}
+
+static bf_t *JS_ToBigInt(JSContext *ctx, bf_t *buf, JSValueConst val)
+{
+ return JS_ToBigIntFree(ctx, buf, JS_DupValue(ctx, val));
+}
+
+static __maybe_unused JSValue JS_ToBigIntValueFree(JSContext *ctx, JSValue val)
+{
+ if (JS_VALUE_GET_TAG(val) == JS_TAG_BIG_INT) {
+ return val;
+ } else {
+ bf_t a_s, *a, *r;
+ int ret;
+ JSValue res;
+
+ res = JS_NewBigInt(ctx);
+ if (JS_IsException(res))
+ return JS_EXCEPTION;
+ a = JS_ToBigIntFree(ctx, &a_s, val);
+ if (!a) {
+ JS_FreeValue(ctx, res);
+ return JS_EXCEPTION;
+ }
+ r = JS_GetBigInt(res);
+ ret = bf_set(r, a);
+ JS_FreeBigInt(ctx, a, &a_s);
+ if (ret) {
+ JS_FreeValue(ctx, res);
+ return JS_ThrowOutOfMemory(ctx);
+ }
+ return JS_CompactBigInt(ctx, res);
+ }
+}
+
+/* free the bf_t allocated by JS_ToBigInt */
+static void JS_FreeBigInt(JSContext *ctx, bf_t *a, bf_t *buf)
+{
+ if (a == buf) {
+ bf_delete(a);
+ } else {
+ JSBigFloat *p = (JSBigFloat *)((uint8_t *)a -
+ offsetof(JSBigFloat, num));
+ JS_FreeValue(ctx, JS_MKPTR(JS_TAG_BIG_INT, p));
+ }
+}
+
+/* XXX: merge with JS_ToInt64Free with a specific flag */
+static int JS_ToBigInt64Free(JSContext *ctx, int64_t *pres, JSValue val)
+{
+ bf_t a_s, *a;
+
+ a = JS_ToBigIntFree(ctx, &a_s, val);
+ if (!a) {
+ *pres = 0;
+ return -1;
+ }
+ bf_get_int64(pres, a, BF_GET_INT_MOD);
+ JS_FreeBigInt(ctx, a, &a_s);
+ return 0;
+}
+
+int JS_ToBigInt64(JSContext *ctx, int64_t *pres, JSValueConst val)
+{
+ return JS_ToBigInt64Free(ctx, pres, JS_DupValue(ctx, val));
+}
+
+static JSBigFloat *js_new_bf(JSContext *ctx)
+{
+ JSBigFloat *p;
+ p = js_malloc(ctx, sizeof(*p));
+ if (!p)
+ return NULL;
+ p->header.ref_count = 1;
+ bf_init(ctx->bf_ctx, &p->num);
+ return p;
+}
+
+static JSValue JS_NewBigInt(JSContext *ctx)
+{
+ JSBigFloat *p;
+ p = js_malloc(ctx, sizeof(*p));
+ if (!p)
+ return JS_EXCEPTION;
+ p->header.ref_count = 1;
+ bf_init(ctx->bf_ctx, &p->num);
+ return JS_MKPTR(JS_TAG_BIG_INT, p);
+}
+
+static JSValue JS_CompactBigInt1(JSContext *ctx, JSValue val,
+ BOOL convert_to_safe_integer)
+{
+ int64_t v;
+ bf_t *a;
+
+ if (JS_VALUE_GET_TAG(val) != JS_TAG_BIG_INT)
+ return val; /* fail safe */
+ a = JS_GetBigInt(val);
+ if (convert_to_safe_integer && bf_get_int64(&v, a, 0) == 0 &&
+ v >= -MAX_SAFE_INTEGER && v <= MAX_SAFE_INTEGER) {
+ JS_FreeValue(ctx, val);
+ return JS_NewInt64(ctx, v);
+ } else if (a->expn == BF_EXP_ZERO && a->sign) {
+ JSBigFloat *p = JS_VALUE_GET_PTR(val);
+ assert(p->header.ref_count == 1);
+ a->sign = 0;
+ }
+ return val;
+}
+
+/* Convert the big int to a safe integer if in math mode. normalize
+ the zero representation. Could also be used to convert the bigint
+ to a short bigint value. The reference count of the value must be
+ 1. Cannot fail */
+static JSValue JS_CompactBigInt(JSContext *ctx, JSValue val)
+{
+ return JS_CompactBigInt1(ctx, val, is_math_mode(ctx));
+}
+
+static JSValue throw_bf_exception(JSContext *ctx, int status)
+{
+ const char *str;
+ if (status & BF_ST_MEM_ERROR)
+ return JS_ThrowOutOfMemory(ctx);
+ if (status & BF_ST_DIVIDE_ZERO) {
+ str = "division by zero";
+ } else if (status & BF_ST_INVALID_OP) {
+ str = "invalid operation";
+ } else {
+ str = "integer overflow";
+ }
+ return JS_ThrowRangeError(ctx, "%s", str);
+}
+
+/* if the returned bigfloat is allocated it is equal to
+ 'buf'. Otherwise it is a pointer to the bigfloat in 'val'. Return
+ NULL in case of error. */
+static bf_t *JS_ToBigFloat(JSContext *ctx, bf_t *buf, JSValueConst val)
+{
+ uint32_t tag;
+ bf_t *r;
+ JSBigFloat *p;
+
+ tag = JS_VALUE_GET_NORM_TAG(val);
+ switch(tag) {
+ case JS_TAG_INT:
+ case JS_TAG_BOOL:
+ case JS_TAG_NULL:
+ r = buf;
+ bf_init(ctx->bf_ctx, r);
+ if (bf_set_si(r, JS_VALUE_GET_INT(val)))
+ goto fail;
+ break;
+ case JS_TAG_FLOAT64:
+ r = buf;
+ bf_init(ctx->bf_ctx, r);
+ if (bf_set_float64(r, JS_VALUE_GET_FLOAT64(val))) {
+ fail:
+ bf_delete(r);
+ return NULL;
+ }
+ break;
+ case JS_TAG_BIG_INT:
+#ifdef CONFIG_BIGNUM
+ case JS_TAG_BIG_FLOAT:
+#endif
+ p = JS_VALUE_GET_PTR(val);
+ r = &p->num;
+ break;
+ case JS_TAG_UNDEFINED:
+ default:
+ r = buf;
+ bf_init(ctx->bf_ctx, r);
+ bf_set_nan(r);
+ break;
+ }
+ return r;
+}
+
+#ifdef CONFIG_BIGNUM
+/* return NULL if invalid type */
+static bfdec_t *JS_ToBigDecimal(JSContext *ctx, JSValueConst val)
+{
+ uint32_t tag;
+ JSBigDecimal *p;
+ bfdec_t *r;
+
+ tag = JS_VALUE_GET_NORM_TAG(val);
+ switch(tag) {
+ case JS_TAG_BIG_DECIMAL:
+ p = JS_VALUE_GET_PTR(val);
+ r = &p->num;
+ break;
+ default:
+ JS_ThrowTypeError(ctx, "bigdecimal expected");
+ r = NULL;
+ break;
+ }
+ return r;
+}
+
+static JSValue JS_NewBigFloat(JSContext *ctx)
+{
+ JSBigFloat *p;
+ p = js_malloc(ctx, sizeof(*p));
+ if (!p)
+ return JS_EXCEPTION;
+ p->header.ref_count = 1;
+ bf_init(ctx->bf_ctx, &p->num);
+ return JS_MKPTR(JS_TAG_BIG_FLOAT, p);
+}
+
+static JSValue JS_NewBigDecimal(JSContext *ctx)
+{
+ JSBigDecimal *p;
+ p = js_malloc(ctx, sizeof(*p));
+ if (!p)
+ return JS_EXCEPTION;
+ p->header.ref_count = 1;
+ bfdec_init(ctx->bf_ctx, &p->num);
+ return JS_MKPTR(JS_TAG_BIG_DECIMAL, p);
+}
+
+/* must be kept in sync with JSOverloadableOperatorEnum */
+/* XXX: use atoms ? */
+static const char js_overloadable_operator_names[JS_OVOP_COUNT][4] = {
+ "+",
+ "-",
+ "*",
+ "/",
+ "%",
+ "**",
+ "|",
+ "&",
+ "^",
+ "<<",
+ ">>",
+ ">>>",
+ "==",
+ "<",
+ "pos",
+ "neg",
+ "++",
+ "--",
+ "~",
+};
+
+static int get_ovop_from_opcode(OPCodeEnum op)
+{
+ switch(op) {
+ case OP_add:
+ return JS_OVOP_ADD;
+ case OP_sub:
+ return JS_OVOP_SUB;
+ case OP_mul:
+ return JS_OVOP_MUL;
+ case OP_div:
+ return JS_OVOP_DIV;
+ case OP_mod:
+ case OP_math_mod:
+ return JS_OVOP_MOD;
+ case OP_pow:
+ return JS_OVOP_POW;
+ case OP_or:
+ return JS_OVOP_OR;
+ case OP_and:
+ return JS_OVOP_AND;
+ case OP_xor:
+ return JS_OVOP_XOR;
+ case OP_shl:
+ return JS_OVOP_SHL;
+ case OP_sar:
+ return JS_OVOP_SAR;
+ case OP_shr:
+ return JS_OVOP_SHR;
+ case OP_eq:
+ case OP_neq:
+ return JS_OVOP_EQ;
+ case OP_lt:
+ case OP_lte:
+ case OP_gt:
+ case OP_gte:
+ return JS_OVOP_LESS;
+ case OP_plus:
+ return JS_OVOP_POS;
+ case OP_neg:
+ return JS_OVOP_NEG;
+ case OP_inc:
+ return JS_OVOP_INC;
+ case OP_dec:
+ return JS_OVOP_DEC;
+ default:
+ abort();
+ }
+}
+
+/* return NULL if not present */
+static JSObject *find_binary_op(JSBinaryOperatorDef *def,
+ uint32_t operator_index,
+ JSOverloadableOperatorEnum op)
+{
+ JSBinaryOperatorDefEntry *ent;
+ int i;
+ for(i = 0; i < def->count; i++) {
+ ent = &def->tab[i];
+ if (ent->operator_index == operator_index)
+ return ent->ops[op];
+ }
+ return NULL;
+}
+
+/* return -1 if exception, 0 if no operator overloading, 1 if
+ overloaded operator called */
+static __exception int js_call_binary_op_fallback(JSContext *ctx,
+ JSValue *pret,
+ JSValueConst op1,
+ JSValueConst op2,
+ OPCodeEnum op,
+ BOOL is_numeric,
+ int hint)
+{
+ JSValue opset1_obj, opset2_obj, method, ret, new_op1, new_op2;
+ JSOperatorSetData *opset1, *opset2;
+ JSOverloadableOperatorEnum ovop;
+ JSObject *p;
+ JSValueConst args[2];
+
+ if (!ctx->allow_operator_overloading)
+ return 0;
+
+ opset2_obj = JS_UNDEFINED;
+ opset1_obj = JS_GetProperty(ctx, op1, JS_ATOM_Symbol_operatorSet);
+ if (JS_IsException(opset1_obj))
+ goto exception;
+ if (JS_IsUndefined(opset1_obj))
+ return 0;
+ opset1 = JS_GetOpaque2(ctx, opset1_obj, JS_CLASS_OPERATOR_SET);
+ if (!opset1)
+ goto exception;
+
+ opset2_obj = JS_GetProperty(ctx, op2, JS_ATOM_Symbol_operatorSet);
+ if (JS_IsException(opset2_obj))
+ goto exception;
+ if (JS_IsUndefined(opset2_obj)) {
+ JS_FreeValue(ctx, opset1_obj);
+ return 0;
+ }
+ opset2 = JS_GetOpaque2(ctx, opset2_obj, JS_CLASS_OPERATOR_SET);
+ if (!opset2)
+ goto exception;
+
+ if (opset1->is_primitive && opset2->is_primitive) {
+ JS_FreeValue(ctx, opset1_obj);
+ JS_FreeValue(ctx, opset2_obj);
+ return 0;
+ }
+
+ ovop = get_ovop_from_opcode(op);
+
+ if (opset1->operator_counter == opset2->operator_counter) {
+ p = opset1->self_ops[ovop];
+ } else if (opset1->operator_counter > opset2->operator_counter) {
+ p = find_binary_op(&opset1->left, opset2->operator_counter, ovop);
+ } else {
+ p = find_binary_op(&opset2->right, opset1->operator_counter, ovop);
+ }
+ if (!p) {
+ JS_ThrowTypeError(ctx, "operator %s: no function defined",
+ js_overloadable_operator_names[ovop]);
+ goto exception;
+ }
+
+ if (opset1->is_primitive) {
+ if (is_numeric) {
+ new_op1 = JS_ToNumeric(ctx, op1);
+ } else {
+ new_op1 = JS_ToPrimitive(ctx, op1, hint);
+ }
+ if (JS_IsException(new_op1))
+ goto exception;
+ } else {
+ new_op1 = JS_DupValue(ctx, op1);
+ }
+
+ if (opset2->is_primitive) {
+ if (is_numeric) {
+ new_op2 = JS_ToNumeric(ctx, op2);
+ } else {
+ new_op2 = JS_ToPrimitive(ctx, op2, hint);
+ }
+ if (JS_IsException(new_op2)) {
+ JS_FreeValue(ctx, new_op1);
+ goto exception;
+ }
+ } else {
+ new_op2 = JS_DupValue(ctx, op2);
+ }
+
+ /* XXX: could apply JS_ToPrimitive() if primitive type so that the
+ operator function does not get a value object */
+
+ method = JS_DupValue(ctx, JS_MKPTR(JS_TAG_OBJECT, p));
+ if (ovop == JS_OVOP_LESS && (op == OP_lte || op == OP_gt)) {
+ args[0] = new_op2;
+ args[1] = new_op1;
+ } else {
+ args[0] = new_op1;
+ args[1] = new_op2;
+ }
+ ret = JS_CallFree(ctx, method, JS_UNDEFINED, 2, args);
+ JS_FreeValue(ctx, new_op1);
+ JS_FreeValue(ctx, new_op2);
+ if (JS_IsException(ret))
+ goto exception;
+ if (ovop == JS_OVOP_EQ) {
+ BOOL res = JS_ToBoolFree(ctx, ret);
+ if (op == OP_neq)
+ res ^= 1;
+ ret = JS_NewBool(ctx, res);
+ } else if (ovop == JS_OVOP_LESS) {
+ if (JS_IsUndefined(ret)) {
+ ret = JS_FALSE;
+ } else {
+ BOOL res = JS_ToBoolFree(ctx, ret);
+ if (op == OP_lte || op == OP_gte)
+ res ^= 1;
+ ret = JS_NewBool(ctx, res);
+ }
+ }
+ JS_FreeValue(ctx, opset1_obj);
+ JS_FreeValue(ctx, opset2_obj);
+ *pret = ret;
+ return 1;
+ exception:
+ JS_FreeValue(ctx, opset1_obj);
+ JS_FreeValue(ctx, opset2_obj);
+ *pret = JS_UNDEFINED;
+ return -1;
+}
+
+/* try to call the operation on the operatorSet field of 'obj'. Only
+ used for "/" and "**" on the BigInt prototype in math mode */
+static __exception int js_call_binary_op_simple(JSContext *ctx,
+ JSValue *pret,
+ JSValueConst obj,
+ JSValueConst op1,
+ JSValueConst op2,
+ OPCodeEnum op)
+{
+ JSValue opset1_obj, method, ret, new_op1, new_op2;
+ JSOperatorSetData *opset1;
+ JSOverloadableOperatorEnum ovop;
+ JSObject *p;
+ JSValueConst args[2];
+
+ opset1_obj = JS_GetProperty(ctx, obj, JS_ATOM_Symbol_operatorSet);
+ if (JS_IsException(opset1_obj))
+ goto exception;
+ if (JS_IsUndefined(opset1_obj))
+ return 0;
+ opset1 = JS_GetOpaque2(ctx, opset1_obj, JS_CLASS_OPERATOR_SET);
+ if (!opset1)
+ goto exception;
+ ovop = get_ovop_from_opcode(op);
+
+ p = opset1->self_ops[ovop];
+ if (!p) {
+ JS_FreeValue(ctx, opset1_obj);
+ return 0;
+ }
+
+ new_op1 = JS_ToNumeric(ctx, op1);
+ if (JS_IsException(new_op1))
+ goto exception;
+ new_op2 = JS_ToNumeric(ctx, op2);
+ if (JS_IsException(new_op2)) {
+ JS_FreeValue(ctx, new_op1);
+ goto exception;
+ }
+
+ method = JS_DupValue(ctx, JS_MKPTR(JS_TAG_OBJECT, p));
+ args[0] = new_op1;
+ args[1] = new_op2;
+ ret = JS_CallFree(ctx, method, JS_UNDEFINED, 2, args);
+ JS_FreeValue(ctx, new_op1);
+ JS_FreeValue(ctx, new_op2);
+ if (JS_IsException(ret))
+ goto exception;
+ JS_FreeValue(ctx, opset1_obj);
+ *pret = ret;
+ return 1;
+ exception:
+ JS_FreeValue(ctx, opset1_obj);
+ *pret = JS_UNDEFINED;
+ return -1;
+}
+
+/* return -1 if exception, 0 if no operator overloading, 1 if
+ overloaded operator called */
+static __exception int js_call_unary_op_fallback(JSContext *ctx,
+ JSValue *pret,
+ JSValueConst op1,
+ OPCodeEnum op)
+{
+ JSValue opset1_obj, method, ret;
+ JSOperatorSetData *opset1;
+ JSOverloadableOperatorEnum ovop;
+ JSObject *p;
+
+ if (!ctx->allow_operator_overloading)
+ return 0;
+
+ opset1_obj = JS_GetProperty(ctx, op1, JS_ATOM_Symbol_operatorSet);
+ if (JS_IsException(opset1_obj))
+ goto exception;
+ if (JS_IsUndefined(opset1_obj))
+ return 0;
+ opset1 = JS_GetOpaque2(ctx, opset1_obj, JS_CLASS_OPERATOR_SET);
+ if (!opset1)
+ goto exception;
+ if (opset1->is_primitive) {
+ JS_FreeValue(ctx, opset1_obj);
+ return 0;
+ }
+
+ ovop = get_ovop_from_opcode(op);
+
+ p = opset1->self_ops[ovop];
+ if (!p) {
+ JS_ThrowTypeError(ctx, "no overloaded operator %s",
+ js_overloadable_operator_names[ovop]);
+ goto exception;
+ }
+ method = JS_DupValue(ctx, JS_MKPTR(JS_TAG_OBJECT, p));
+ ret = JS_CallFree(ctx, method, JS_UNDEFINED, 1, &op1);
+ if (JS_IsException(ret))
+ goto exception;
+ JS_FreeValue(ctx, opset1_obj);
+ *pret = ret;
+ return 1;
+ exception:
+ JS_FreeValue(ctx, opset1_obj);
+ *pret = JS_UNDEFINED;
+ return -1;
+}
+
+static int js_unary_arith_bigfloat(JSContext *ctx,
+ JSValue *pres, OPCodeEnum op, JSValue op1)
+{
+ bf_t a_s, *r, *a;
+ int ret, v;
+ JSValue res;
+
+ if (op == OP_plus && !is_math_mode(ctx)) {
+ JS_ThrowTypeError(ctx, "bigfloat argument with unary +");
+ JS_FreeValue(ctx, op1);
+ return -1;
+ }
+
+ res = JS_NewBigFloat(ctx);
+ if (JS_IsException(res)) {
+ JS_FreeValue(ctx, op1);
+ return -1;
+ }
+ r = JS_GetBigFloat(res);
+ a = JS_ToBigFloat(ctx, &a_s, op1);
+ if (!a) {
+ JS_FreeValue(ctx, res);
+ JS_FreeValue(ctx, op1);
+ return -1;
+ }
+ ret = 0;
+ switch(op) {
+ case OP_inc:
+ case OP_dec:
+ v = 2 * (op - OP_dec) - 1;
+ ret = bf_add_si(r, a, v, ctx->fp_env.prec, ctx->fp_env.flags);
+ break;
+ case OP_plus:
+ ret = bf_set(r, a);
+ break;
+ case OP_neg:
+ ret = bf_set(r, a);
+ bf_neg(r);
+ break;
+ default:
+ abort();
+ }
+ if (a == &a_s)
+ bf_delete(a);
+ JS_FreeValue(ctx, op1);
+ if (unlikely(ret & BF_ST_MEM_ERROR)) {
+ JS_FreeValue(ctx, res);
+ throw_bf_exception(ctx, ret);
+ return -1;
+ }
+ *pres = res;
+ return 0;
+}
+
+static int js_unary_arith_bigdecimal(JSContext *ctx,
+ JSValue *pres, OPCodeEnum op, JSValue op1)
+{
+ bfdec_t *r, *a;
+ int ret, v;
+ JSValue res;
+
+ if (op == OP_plus && !is_math_mode(ctx)) {
+ JS_ThrowTypeError(ctx, "bigdecimal argument with unary +");
+ JS_FreeValue(ctx, op1);
+ return -1;
+ }
+
+ res = JS_NewBigDecimal(ctx);
+ if (JS_IsException(res)) {
+ JS_FreeValue(ctx, op1);
+ return -1;
+ }
+ r = JS_GetBigDecimal(res);
+ a = JS_ToBigDecimal(ctx, op1);
+ if (!a) {
+ JS_FreeValue(ctx, res);
+ JS_FreeValue(ctx, op1);
+ return -1;
+ }
+ ret = 0;
+ switch(op) {
+ case OP_inc:
+ case OP_dec:
+ v = 2 * (op - OP_dec) - 1;
+ ret = bfdec_add_si(r, a, v, BF_PREC_INF, BF_RNDZ);
+ break;
+ case OP_plus:
+ ret = bfdec_set(r, a);
+ break;
+ case OP_neg:
+ ret = bfdec_set(r, a);
+ bfdec_neg(r);
+ break;
+ default:
+ abort();
+ }
+ JS_FreeValue(ctx, op1);
+ if (unlikely(ret)) {
+ JS_FreeValue(ctx, res);
+ throw_bf_exception(ctx, ret);
+ return -1;
+ }
+ *pres = res;
+ return 0;
+}
+
+#endif /* CONFIG_BIGNUM */
+
+static int js_unary_arith_bigint(JSContext *ctx,
+ JSValue *pres, OPCodeEnum op, JSValue op1)
+{
+ bf_t a_s, *r, *a;
+ int ret, v;
+ JSValue res;
+
+ if (op == OP_plus && !is_math_mode(ctx)) {
+ JS_ThrowTypeError(ctx, "bigint argument with unary +");
+ JS_FreeValue(ctx, op1);
+ return -1;
+ }
+ res = JS_NewBigInt(ctx);
+ if (JS_IsException(res)) {
+ JS_FreeValue(ctx, op1);
+ return -1;
+ }
+ r = JS_GetBigInt(res);
+ a = JS_ToBigInt(ctx, &a_s, op1);
+ if (!a) {
+ JS_FreeValue(ctx, res);
+ JS_FreeValue(ctx, op1);
+ return -1;
+ }
+ ret = 0;
+ switch(op) {
+ case OP_inc:
+ case OP_dec:
+ v = 2 * (op - OP_dec) - 1;
+ ret = bf_add_si(r, a, v, BF_PREC_INF, BF_RNDZ);
+ break;
+ case OP_plus:
+ ret = bf_set(r, a);
+ break;
+ case OP_neg:
+ ret = bf_set(r, a);
+ bf_neg(r);
+ break;
+ case OP_not:
+ ret = bf_add_si(r, a, 1, BF_PREC_INF, BF_RNDZ);
+ bf_neg(r);
+ break;
+ default:
+ abort();
+ }
+ JS_FreeBigInt(ctx, a, &a_s);
+ JS_FreeValue(ctx, op1);
+ if (unlikely(ret)) {
+ JS_FreeValue(ctx, res);
+ throw_bf_exception(ctx, ret);
+ return -1;
+ }
+ res = JS_CompactBigInt(ctx, res);
+ *pres = res;
+ return 0;
+}
+
+static no_inline __exception int js_unary_arith_slow(JSContext *ctx,
+ JSValue *sp,
+ OPCodeEnum op)
+{
+ JSValue op1;
+ int v;
+ uint32_t tag;
+
+ op1 = sp[-1];
+ /* fast path for float64 */
+ if (JS_TAG_IS_FLOAT64(JS_VALUE_GET_TAG(op1)))
+ goto handle_float64;
+#ifdef CONFIG_BIGNUM
+ if (JS_IsObject(op1)) {
+ JSValue val;
+ int ret = js_call_unary_op_fallback(ctx, &val, op1, op);
+ if (ret < 0)
+ return -1;
+ if (ret) {
+ JS_FreeValue(ctx, op1);
+ sp[-1] = val;
+ return 0;
+ }
+ }
+#endif
+ op1 = JS_ToNumericFree(ctx, op1);
+ if (JS_IsException(op1))
+ goto exception;
+ tag = JS_VALUE_GET_TAG(op1);
+ switch(tag) {
+ case JS_TAG_INT:
+ {
+ int64_t v64;
+ v64 = JS_VALUE_GET_INT(op1);
+ switch(op) {
+ case OP_inc:
+ case OP_dec:
+ v = 2 * (op - OP_dec) - 1;
+ v64 += v;
+ break;
+ case OP_plus:
+ break;
+ case OP_neg:
+ if (v64 == 0) {
+ sp[-1] = __JS_NewFloat64(ctx, -0.0);
+ return 0;
+ } else {
+ v64 = -v64;
+ }
+ break;
+ default:
+ abort();
+ }
+ sp[-1] = JS_NewInt64(ctx, v64);
+ }
+ break;
+ case JS_TAG_BIG_INT:
+ handle_bigint:
+ if (ctx->rt->bigint_ops.unary_arith(ctx, sp - 1, op, op1))
+ goto exception;
+ break;
+#ifdef CONFIG_BIGNUM
+ case JS_TAG_BIG_FLOAT:
+ if (ctx->rt->bigfloat_ops.unary_arith(ctx, sp - 1, op, op1))
+ goto exception;
+ break;
+ case JS_TAG_BIG_DECIMAL:
+ if (ctx->rt->bigdecimal_ops.unary_arith(ctx, sp - 1, op, op1))
+ goto exception;
+ break;
+#endif
+ default:
+ handle_float64:
+ {
+ double d;
+ if (is_math_mode(ctx))
+ goto handle_bigint;
+ d = JS_VALUE_GET_FLOAT64(op1);
+ switch(op) {
+ case OP_inc:
+ case OP_dec:
+ v = 2 * (op - OP_dec) - 1;
+ d += v;
+ break;
+ case OP_plus:
+ break;
+ case OP_neg:
+ d = -d;
+ break;
+ default:
+ abort();
+ }
+ sp[-1] = __JS_NewFloat64(ctx, d);
+ }
+ break;
+ }
+ return 0;
+ exception:
+ sp[-1] = JS_UNDEFINED;
+ return -1;
+}
+
+static __exception int js_post_inc_slow(JSContext *ctx,
+ JSValue *sp, OPCodeEnum op)
+{
+ JSValue op1;
+
+ /* XXX: allow custom operators */
+ op1 = sp[-1];
+ op1 = JS_ToNumericFree(ctx, op1);
+ if (JS_IsException(op1)) {
+ sp[-1] = JS_UNDEFINED;
+ return -1;
+ }
+ sp[-1] = op1;
+ sp[0] = JS_DupValue(ctx, op1);
+ return js_unary_arith_slow(ctx, sp + 1, op - OP_post_dec + OP_dec);
+}
+
+static no_inline int js_not_slow(JSContext *ctx, JSValue *sp)
+{
+ JSValue op1;
+
+ op1 = sp[-1];
+#ifdef CONFIG_BIGNUM
+ if (JS_IsObject(op1)) {
+ JSValue val;
+ int ret = js_call_unary_op_fallback(ctx, &val, op1, OP_not);
+ if (ret < 0)
+ return -1;
+ if (ret) {
+ JS_FreeValue(ctx, op1);
+ sp[-1] = val;
+ return 0;
+ }
+ }
+#endif
+ op1 = JS_ToNumericFree(ctx, op1);
+ if (JS_IsException(op1))
+ goto exception;
+ if (is_math_mode(ctx) || JS_VALUE_GET_TAG(op1) == JS_TAG_BIG_INT) {
+ if (ctx->rt->bigint_ops.unary_arith(ctx, sp - 1, OP_not, op1))
+ goto exception;
+ } else {
+ int32_t v1;
+ if (unlikely(JS_ToInt32Free(ctx, &v1, op1)))
+ goto exception;
+ sp[-1] = JS_NewInt32(ctx, ~v1);
+ }
+ return 0;
+ exception:
+ sp[-1] = JS_UNDEFINED;
+ return -1;
+}
+
+static int js_binary_arith_bigint(JSContext *ctx, OPCodeEnum op,
+ JSValue *pres, JSValue op1, JSValue op2)
+{
+ bf_t a_s, b_s, *r, *a, *b;
+ int ret;
+ JSValue res;
+
+ res = JS_NewBigInt(ctx);
+ if (JS_IsException(res))
+ goto fail;
+ a = JS_ToBigInt(ctx, &a_s, op1);
+ if (!a)
+ goto fail;
+ b = JS_ToBigInt(ctx, &b_s, op2);
+ if (!b) {
+ JS_FreeBigInt(ctx, a, &a_s);
+ goto fail;
+ }
+ r = JS_GetBigInt(res);
+ ret = 0;
+ switch(op) {
+ case OP_add:
+ ret = bf_add(r, a, b, BF_PREC_INF, BF_RNDZ);
+ break;
+ case OP_sub:
+ ret = bf_sub(r, a, b, BF_PREC_INF, BF_RNDZ);
+ break;
+ case OP_mul:
+ ret = bf_mul(r, a, b, BF_PREC_INF, BF_RNDZ);
+ break;
+ case OP_div:
+ if (!is_math_mode(ctx)) {
+ bf_t rem_s, *rem = &rem_s;
+ bf_init(ctx->bf_ctx, rem);
+ ret = bf_divrem(r, rem, a, b, BF_PREC_INF, BF_RNDZ,
+ BF_RNDZ);
+ bf_delete(rem);
+ } else {
+ goto math_mode_div_pow;
+ }
+ break;
+#ifdef CONFIG_BIGNUM
+ case OP_math_mod:
+ /* Euclidian remainder */
+ ret = bf_rem(r, a, b, BF_PREC_INF, BF_RNDZ,
+ BF_DIVREM_EUCLIDIAN) & BF_ST_INVALID_OP;
+ break;
+#endif
+ case OP_mod:
+ ret = bf_rem(r, a, b, BF_PREC_INF, BF_RNDZ,
+ BF_RNDZ) & BF_ST_INVALID_OP;
+ break;
+ case OP_pow:
+ if (b->sign) {
+ if (!is_math_mode(ctx)) {
+ ret = BF_ST_INVALID_OP;
+ } else {
+ math_mode_div_pow:
+#ifdef CONFIG_BIGNUM
+ JS_FreeValue(ctx, res);
+ ret = js_call_binary_op_simple(ctx, &res, ctx->class_proto[JS_CLASS_BIG_INT], op1, op2, op);
+ if (ret != 0) {
+ JS_FreeBigInt(ctx, a, &a_s);
+ JS_FreeBigInt(ctx, b, &b_s);
+ JS_FreeValue(ctx, op1);
+ JS_FreeValue(ctx, op2);
+ if (ret < 0) {
+ return -1;
+ } else {
+ *pres = res;
+ return 0;
+ }
+ }
+ /* if no BigInt power operator defined, return a
+ bigfloat */
+ res = JS_NewBigFloat(ctx);
+ if (JS_IsException(res)) {
+ JS_FreeBigInt(ctx, a, &a_s);
+ JS_FreeBigInt(ctx, b, &b_s);
+ goto fail;
+ }
+ r = JS_GetBigFloat(res);
+ if (op == OP_div) {
+ ret = bf_div(r, a, b, ctx->fp_env.prec, ctx->fp_env.flags) & BF_ST_MEM_ERROR;
+ } else {
+ ret = bf_pow(r, a, b, ctx->fp_env.prec,
+ ctx->fp_env.flags | BF_POW_JS_QUIRKS) & BF_ST_MEM_ERROR;
+ }
+ JS_FreeBigInt(ctx, a, &a_s);
+ JS_FreeBigInt(ctx, b, &b_s);
+ JS_FreeValue(ctx, op1);
+ JS_FreeValue(ctx, op2);
+ if (unlikely(ret)) {
+ JS_FreeValue(ctx, res);
+ throw_bf_exception(ctx, ret);
+ return -1;
+ }
+ *pres = res;
+ return 0;
+#else
+ abort();
+#endif
+ }
+ } else {
+ ret = bf_pow(r, a, b, BF_PREC_INF, BF_RNDZ | BF_POW_JS_QUIRKS);
+ }
+ break;
+
+ /* logical operations */
+ case OP_shl:
+ case OP_sar:
+ {
+ slimb_t v2;
+#if LIMB_BITS == 32
+ bf_get_int32(&v2, b, 0);
+ if (v2 == INT32_MIN)
+ v2 = INT32_MIN + 1;
+#else
+ bf_get_int64(&v2, b, 0);
+ if (v2 == INT64_MIN)
+ v2 = INT64_MIN + 1;
+#endif
+ if (op == OP_sar)
+ v2 = -v2;
+ ret = bf_set(r, a);
+ ret |= bf_mul_2exp(r, v2, BF_PREC_INF, BF_RNDZ);
+ if (v2 < 0) {
+ ret |= bf_rint(r, BF_RNDD) & (BF_ST_OVERFLOW | BF_ST_MEM_ERROR);
+ }
+ }
+ break;
+ case OP_and:
+ ret = bf_logic_and(r, a, b);
+ break;
+ case OP_or:
+ ret = bf_logic_or(r, a, b);
+ break;
+ case OP_xor:
+ ret = bf_logic_xor(r, a, b);
+ break;
+ default:
+ abort();
+ }
+ JS_FreeBigInt(ctx, a, &a_s);
+ JS_FreeBigInt(ctx, b, &b_s);
+ JS_FreeValue(ctx, op1);
+ JS_FreeValue(ctx, op2);
+ if (unlikely(ret)) {
+ JS_FreeValue(ctx, res);
+ throw_bf_exception(ctx, ret);
+ return -1;
+ }
+ *pres = JS_CompactBigInt(ctx, res);
+ return 0;
+ fail:
+ JS_FreeValue(ctx, res);
+ JS_FreeValue(ctx, op1);
+ JS_FreeValue(ctx, op2);
+ return -1;
+}
+
+#ifdef CONFIG_BIGNUM
+static int js_binary_arith_bigfloat(JSContext *ctx, OPCodeEnum op,
+ JSValue *pres, JSValue op1, JSValue op2)
+{
+ bf_t a_s, b_s, *r, *a, *b;
+ int ret;
+ JSValue res;
+
+ res = JS_NewBigFloat(ctx);
+ if (JS_IsException(res))
+ goto fail;
+ r = JS_GetBigFloat(res);
+ a = JS_ToBigFloat(ctx, &a_s, op1);
+ if (!a) {
+ JS_FreeValue(ctx, res);
+ goto fail;
+ }
+ b = JS_ToBigFloat(ctx, &b_s, op2);
+ if (!b) {
+ if (a == &a_s)
+ bf_delete(a);
+ JS_FreeValue(ctx, res);
+ goto fail;
+ }
+ bf_init(ctx->bf_ctx, r);
+ switch(op) {
+ case OP_add:
+ ret = bf_add(r, a, b, ctx->fp_env.prec, ctx->fp_env.flags);
+ break;
+ case OP_sub:
+ ret = bf_sub(r, a, b, ctx->fp_env.prec, ctx->fp_env.flags);
+ break;
+ case OP_mul:
+ ret = bf_mul(r, a, b, ctx->fp_env.prec, ctx->fp_env.flags);
+ break;
+ case OP_div:
+ ret = bf_div(r, a, b, ctx->fp_env.prec, ctx->fp_env.flags);
+ break;
+ case OP_math_mod:
+ /* Euclidian remainder */
+ ret = bf_rem(r, a, b, ctx->fp_env.prec, ctx->fp_env.flags,
+ BF_DIVREM_EUCLIDIAN);
+ break;
+ case OP_mod:
+ ret = bf_rem(r, a, b, ctx->fp_env.prec, ctx->fp_env.flags,
+ BF_RNDZ);
+ break;
+ case OP_pow:
+ ret = bf_pow(r, a, b, ctx->fp_env.prec,
+ ctx->fp_env.flags | BF_POW_JS_QUIRKS);
+ break;
+ default:
+ abort();
+ }
+ if (a == &a_s)
+ bf_delete(a);
+ if (b == &b_s)
+ bf_delete(b);
+ JS_FreeValue(ctx, op1);
+ JS_FreeValue(ctx, op2);
+ if (unlikely(ret & BF_ST_MEM_ERROR)) {
+ JS_FreeValue(ctx, res);
+ throw_bf_exception(ctx, ret);
+ return -1;
+ }
+ *pres = res;
+ return 0;
+ fail:
+ JS_FreeValue(ctx, op1);
+ JS_FreeValue(ctx, op2);
+ return -1;
+}
+
+/* b must be a positive integer */
+static int js_bfdec_pow(bfdec_t *r, const bfdec_t *a, const bfdec_t *b)
+{
+ bfdec_t b1;
+ int32_t b2;
+ int ret;
+
+ bfdec_init(b->ctx, &b1);
+ ret = bfdec_set(&b1, b);
+ if (ret) {
+ bfdec_delete(&b1);
+ return ret;
+ }
+ ret = bfdec_rint(&b1, BF_RNDZ);
+ if (ret) {
+ bfdec_delete(&b1);
+ return BF_ST_INVALID_OP; /* must be an integer */
+ }
+ ret = bfdec_get_int32(&b2, &b1);
+ bfdec_delete(&b1);
+ if (ret)
+ return ret; /* overflow */
+ if (b2 < 0)
+ return BF_ST_INVALID_OP; /* must be positive */
+ return bfdec_pow_ui(r, a, b2);
+}
+
+static int js_binary_arith_bigdecimal(JSContext *ctx, OPCodeEnum op,
+ JSValue *pres, JSValue op1, JSValue op2)
+{
+ bfdec_t *r, *a, *b;
+ int ret;
+ JSValue res;
+
+ res = JS_NewBigDecimal(ctx);
+ if (JS_IsException(res))
+ goto fail;
+ r = JS_GetBigDecimal(res);
+
+ a = JS_ToBigDecimal(ctx, op1);
+ if (!a)
+ goto fail;
+ b = JS_ToBigDecimal(ctx, op2);
+ if (!b)
+ goto fail;
+ switch(op) {
+ case OP_add:
+ ret = bfdec_add(r, a, b, BF_PREC_INF, BF_RNDZ);
+ break;
+ case OP_sub:
+ ret = bfdec_sub(r, a, b, BF_PREC_INF, BF_RNDZ);
+ break;
+ case OP_mul:
+ ret = bfdec_mul(r, a, b, BF_PREC_INF, BF_RNDZ);
+ break;
+ case OP_div:
+ ret = bfdec_div(r, a, b, BF_PREC_INF, BF_RNDZ);
+ break;
+ case OP_math_mod:
+ /* Euclidian remainder */
+ ret = bfdec_rem(r, a, b, BF_PREC_INF, BF_RNDZ, BF_DIVREM_EUCLIDIAN);
+ break;
+ case OP_mod:
+ ret = bfdec_rem(r, a, b, BF_PREC_INF, BF_RNDZ, BF_RNDZ);
+ break;
+ case OP_pow:
+ ret = js_bfdec_pow(r, a, b);
+ break;
+ default:
+ abort();
+ }
+ JS_FreeValue(ctx, op1);
+ JS_FreeValue(ctx, op2);
+ if (unlikely(ret)) {
+ JS_FreeValue(ctx, res);
+ throw_bf_exception(ctx, ret);
+ return -1;
+ }
+ *pres = res;
+ return 0;
+ fail:
+ JS_FreeValue(ctx, res);
+ JS_FreeValue(ctx, op1);
+ JS_FreeValue(ctx, op2);
+ return -1;
+}
+#endif /* CONFIG_BIGNUM */
+
+static no_inline __exception int js_binary_arith_slow(JSContext *ctx, JSValue *sp,
+ OPCodeEnum op)
+{
+ JSValue op1, op2;
+ uint32_t tag1, tag2;
+ double d1, d2;
+
+ op1 = sp[-2];
+ op2 = sp[-1];
+ tag1 = JS_VALUE_GET_NORM_TAG(op1);
+ tag2 = JS_VALUE_GET_NORM_TAG(op2);
+ /* fast path for float operations */
+ if (tag1 == JS_TAG_FLOAT64 && tag2 == JS_TAG_FLOAT64) {
+ d1 = JS_VALUE_GET_FLOAT64(op1);
+ d2 = JS_VALUE_GET_FLOAT64(op2);
+ goto handle_float64;
+ }
+
+#ifdef CONFIG_BIGNUM
+ /* try to call an overloaded operator */
+ if ((tag1 == JS_TAG_OBJECT &&
+ (tag2 != JS_TAG_NULL && tag2 != JS_TAG_UNDEFINED)) ||
+ (tag2 == JS_TAG_OBJECT &&
+ (tag1 != JS_TAG_NULL && tag1 != JS_TAG_UNDEFINED))) {
+ JSValue res;
+ int ret = js_call_binary_op_fallback(ctx, &res, op1, op2, op, TRUE, 0);
+ if (ret != 0) {
+ JS_FreeValue(ctx, op1);
+ JS_FreeValue(ctx, op2);
+ if (ret < 0) {
+ goto exception;
+ } else {
+ sp[-2] = res;
+ return 0;
+ }
+ }
+ }
+#endif
+
+ op1 = JS_ToNumericFree(ctx, op1);
+ if (JS_IsException(op1)) {
+ JS_FreeValue(ctx, op2);
+ goto exception;
+ }
+ op2 = JS_ToNumericFree(ctx, op2);
+ if (JS_IsException(op2)) {
+ JS_FreeValue(ctx, op1);
+ goto exception;
+ }
+ tag1 = JS_VALUE_GET_NORM_TAG(op1);
+ tag2 = JS_VALUE_GET_NORM_TAG(op2);
+
+ if (tag1 == JS_TAG_INT && tag2 == JS_TAG_INT) {
+ int32_t v1, v2;
+ int64_t v;
+ v1 = JS_VALUE_GET_INT(op1);
+ v2 = JS_VALUE_GET_INT(op2);
+ switch(op) {
+ case OP_sub:
+ v = (int64_t)v1 - (int64_t)v2;
+ break;
+ case OP_mul:
+ v = (int64_t)v1 * (int64_t)v2;
+ if (is_math_mode(ctx) &&
+ (v < -MAX_SAFE_INTEGER || v > MAX_SAFE_INTEGER))
+ goto handle_bigint;
+ if (v == 0 && (v1 | v2) < 0) {
+ sp[-2] = __JS_NewFloat64(ctx, -0.0);
+ return 0;
+ }
+ break;
+ case OP_div:
+ if (is_math_mode(ctx))
+ goto handle_bigint;
+ sp[-2] = __JS_NewFloat64(ctx, (double)v1 / (double)v2);
+ return 0;
+#ifdef CONFIG_BIGNUM
+ case OP_math_mod:
+ if (unlikely(v2 == 0)) {
+ throw_bf_exception(ctx, BF_ST_DIVIDE_ZERO);
+ goto exception;
+ }
+ v = (int64_t)v1 % (int64_t)v2;
+ if (v < 0) {
+ if (v2 < 0)
+ v -= v2;
+ else
+ v += v2;
+ }
+ break;
+#endif
+ case OP_mod:
+ if (v1 < 0 || v2 <= 0) {
+ sp[-2] = JS_NewFloat64(ctx, fmod(v1, v2));
+ return 0;
+ } else {
+ v = (int64_t)v1 % (int64_t)v2;
+ }
+ break;
+ case OP_pow:
+ if (!is_math_mode(ctx)) {
+ sp[-2] = JS_NewFloat64(ctx, js_pow(v1, v2));
+ return 0;
+ } else {
+ goto handle_bigint;
+ }
+ break;
+ default:
+ abort();
+ }
+ sp[-2] = JS_NewInt64(ctx, v);
+ } else
+#ifdef CONFIG_BIGNUM
+ if (tag1 == JS_TAG_BIG_DECIMAL || tag2 == JS_TAG_BIG_DECIMAL) {
+ if (ctx->rt->bigdecimal_ops.binary_arith(ctx, op, sp - 2, op1, op2))
+ goto exception;
+ } else if (tag1 == JS_TAG_BIG_FLOAT || tag2 == JS_TAG_BIG_FLOAT) {
+ if (ctx->rt->bigfloat_ops.binary_arith(ctx, op, sp - 2, op1, op2))
+ goto exception;
+ } else
+#endif
+ if (tag1 == JS_TAG_BIG_INT || tag2 == JS_TAG_BIG_INT) {
+ handle_bigint:
+ if (ctx->rt->bigint_ops.binary_arith(ctx, op, sp - 2, op1, op2))
+ goto exception;
+ } else {
+ double dr;
+ /* float64 result */
+ if (JS_ToFloat64Free(ctx, &d1, op1)) {
+ JS_FreeValue(ctx, op2);
+ goto exception;
+ }
+ if (JS_ToFloat64Free(ctx, &d2, op2))
+ goto exception;
+ handle_float64:
+ if (is_math_mode(ctx) && is_safe_integer(d1) && is_safe_integer(d2))
+ goto handle_bigint;
+ switch(op) {
+ case OP_sub:
+ dr = d1 - d2;
+ break;
+ case OP_mul:
+ dr = d1 * d2;
+ break;
+ case OP_div:
+ dr = d1 / d2;
+ break;
+ case OP_mod:
+ dr = fmod(d1, d2);
+ break;
+#ifdef CONFIG_BIGNUM
+ case OP_math_mod:
+ d2 = fabs(d2);
+ dr = fmod(d1, d2);
+ /* XXX: loss of accuracy if dr < 0 */
+ if (dr < 0)
+ dr += d2;
+ break;
+#endif
+ case OP_pow:
+ dr = js_pow(d1, d2);
+ break;
+ default:
+ abort();
+ }
+ sp[-2] = __JS_NewFloat64(ctx, dr);
+ }
+ return 0;
+ exception:
+ sp[-2] = JS_UNDEFINED;
+ sp[-1] = JS_UNDEFINED;
+ return -1;
+}
+
+static no_inline __exception int js_add_slow(JSContext *ctx, JSValue *sp)
+{
+ JSValue op1, op2;
+ uint32_t tag1, tag2;
+
+ op1 = sp[-2];
+ op2 = sp[-1];
+
+ tag1 = JS_VALUE_GET_NORM_TAG(op1);
+ tag2 = JS_VALUE_GET_NORM_TAG(op2);
+ /* fast path for float64 */
+ if (tag1 == JS_TAG_FLOAT64 && tag2 == JS_TAG_FLOAT64) {
+ double d1, d2;
+ d1 = JS_VALUE_GET_FLOAT64(op1);
+ d2 = JS_VALUE_GET_FLOAT64(op2);
+ sp[-2] = __JS_NewFloat64(ctx, d1 + d2);
+ return 0;
+ }
+
+ if (tag1 == JS_TAG_OBJECT || tag2 == JS_TAG_OBJECT) {
+#ifdef CONFIG_BIGNUM
+ /* try to call an overloaded operator */
+ if ((tag1 == JS_TAG_OBJECT &&
+ (tag2 != JS_TAG_NULL && tag2 != JS_TAG_UNDEFINED &&
+ tag2 != JS_TAG_STRING)) ||
+ (tag2 == JS_TAG_OBJECT &&
+ (tag1 != JS_TAG_NULL && tag1 != JS_TAG_UNDEFINED &&
+ tag1 != JS_TAG_STRING))) {
+ JSValue res;
+ int ret = js_call_binary_op_fallback(ctx, &res, op1, op2, OP_add,
+ FALSE, HINT_NONE);
+ if (ret != 0) {
+ JS_FreeValue(ctx, op1);
+ JS_FreeValue(ctx, op2);
+ if (ret < 0) {
+ goto exception;
+ } else {
+ sp[-2] = res;
+ return 0;
+ }
+ }
+ }
+#endif
+ op1 = JS_ToPrimitiveFree(ctx, op1, HINT_NONE);
+ if (JS_IsException(op1)) {
+ JS_FreeValue(ctx, op2);
+ goto exception;
+ }
+
+ op2 = JS_ToPrimitiveFree(ctx, op2, HINT_NONE);
+ if (JS_IsException(op2)) {
+ JS_FreeValue(ctx, op1);
+ goto exception;
+ }
+ tag1 = JS_VALUE_GET_NORM_TAG(op1);
+ tag2 = JS_VALUE_GET_NORM_TAG(op2);
+ }
+
+ if (tag1 == JS_TAG_STRING || tag2 == JS_TAG_STRING) {
+ sp[-2] = JS_ConcatString(ctx, op1, op2);
+ if (JS_IsException(sp[-2]))
+ goto exception;
+ return 0;
+ }
+
+ op1 = JS_ToNumericFree(ctx, op1);
+ if (JS_IsException(op1)) {
+ JS_FreeValue(ctx, op2);
+ goto exception;
+ }
+ op2 = JS_ToNumericFree(ctx, op2);
+ if (JS_IsException(op2)) {
+ JS_FreeValue(ctx, op1);
+ goto exception;
+ }
+ tag1 = JS_VALUE_GET_NORM_TAG(op1);
+ tag2 = JS_VALUE_GET_NORM_TAG(op2);
+
+ if (tag1 == JS_TAG_INT && tag2 == JS_TAG_INT) {
+ int32_t v1, v2;
+ int64_t v;
+ v1 = JS_VALUE_GET_INT(op1);
+ v2 = JS_VALUE_GET_INT(op2);
+ v = (int64_t)v1 + (int64_t)v2;
+ sp[-2] = JS_NewInt64(ctx, v);
+ } else
+#ifdef CONFIG_BIGNUM
+ if (tag1 == JS_TAG_BIG_DECIMAL || tag2 == JS_TAG_BIG_DECIMAL) {
+ if (ctx->rt->bigdecimal_ops.binary_arith(ctx, OP_add, sp - 2, op1, op2))
+ goto exception;
+ } else if (tag1 == JS_TAG_BIG_FLOAT || tag2 == JS_TAG_BIG_FLOAT) {
+ if (ctx->rt->bigfloat_ops.binary_arith(ctx, OP_add, sp - 2, op1, op2))
+ goto exception;
+ } else
+#endif
+ if (tag1 == JS_TAG_BIG_INT || tag2 == JS_TAG_BIG_INT) {
+ handle_bigint:
+ if (ctx->rt->bigint_ops.binary_arith(ctx, OP_add, sp - 2, op1, op2))
+ goto exception;
+ } else {
+ double d1, d2;
+ /* float64 result */
+ if (JS_ToFloat64Free(ctx, &d1, op1)) {
+ JS_FreeValue(ctx, op2);
+ goto exception;
+ }
+ if (JS_ToFloat64Free(ctx, &d2, op2))
+ goto exception;
+ if (is_math_mode(ctx) && is_safe_integer(d1) && is_safe_integer(d2))
+ goto handle_bigint;
+ sp[-2] = __JS_NewFloat64(ctx, d1 + d2);
+ }
+ return 0;
+ exception:
+ sp[-2] = JS_UNDEFINED;
+ sp[-1] = JS_UNDEFINED;
+ return -1;
+}
+
+static no_inline __exception int js_binary_logic_slow(JSContext *ctx,
+ JSValue *sp,
+ OPCodeEnum op)
+{
+ JSValue op1, op2;
+ uint32_t tag1, tag2;
+ uint32_t v1, v2, r;
+
+ op1 = sp[-2];
+ op2 = sp[-1];
+ tag1 = JS_VALUE_GET_NORM_TAG(op1);
+ tag2 = JS_VALUE_GET_NORM_TAG(op2);
+
+#ifdef CONFIG_BIGNUM
+ /* try to call an overloaded operator */
+ if ((tag1 == JS_TAG_OBJECT &&
+ (tag2 != JS_TAG_NULL && tag2 != JS_TAG_UNDEFINED)) ||
+ (tag2 == JS_TAG_OBJECT &&
+ (tag1 != JS_TAG_NULL && tag1 != JS_TAG_UNDEFINED))) {
+ JSValue res;
+ int ret = js_call_binary_op_fallback(ctx, &res, op1, op2, op, TRUE, 0);
+ if (ret != 0) {
+ JS_FreeValue(ctx, op1);
+ JS_FreeValue(ctx, op2);
+ if (ret < 0) {
+ goto exception;
+ } else {
+ sp[-2] = res;
+ return 0;
+ }
+ }
+ }
+#endif
+
+ op1 = JS_ToNumericFree(ctx, op1);
+ if (JS_IsException(op1)) {
+ JS_FreeValue(ctx, op2);
+ goto exception;
+ }
+ op2 = JS_ToNumericFree(ctx, op2);
+ if (JS_IsException(op2)) {
+ JS_FreeValue(ctx, op1);
+ goto exception;
+ }
+
+ if (is_math_mode(ctx))
+ goto bigint_op;
+
+ tag1 = JS_VALUE_GET_TAG(op1);
+ tag2 = JS_VALUE_GET_TAG(op2);
+ if (tag1 == JS_TAG_BIG_INT || tag2 == JS_TAG_BIG_INT) {
+ if (tag1 != tag2) {
+ JS_FreeValue(ctx, op1);
+ JS_FreeValue(ctx, op2);
+ JS_ThrowTypeError(ctx, "both operands must be bigint");
+ goto exception;
+ } else {
+ bigint_op:
+ if (ctx->rt->bigint_ops.binary_arith(ctx, op, sp - 2, op1, op2))
+ goto exception;
+ }
+ } else {
+ if (unlikely(JS_ToInt32Free(ctx, (int32_t *)&v1, op1))) {
+ JS_FreeValue(ctx, op2);
+ goto exception;
+ }
+ if (unlikely(JS_ToInt32Free(ctx, (int32_t *)&v2, op2)))
+ goto exception;
+ switch(op) {
+ case OP_shl:
+ r = v1 << (v2 & 0x1f);
+ break;
+ case OP_sar:
+ r = (int)v1 >> (v2 & 0x1f);
+ break;
+ case OP_and:
+ r = v1 & v2;
+ break;
+ case OP_or:
+ r = v1 | v2;
+ break;
+ case OP_xor:
+ r = v1 ^ v2;
+ break;
+ default:
+ abort();
+ }
+ sp[-2] = JS_NewInt32(ctx, r);
+ }
+ return 0;
+ exception:
+ sp[-2] = JS_UNDEFINED;
+ sp[-1] = JS_UNDEFINED;
+ return -1;
+}
+
+/* Note: also used for bigint */
+static int js_compare_bigfloat(JSContext *ctx, OPCodeEnum op,
+ JSValue op1, JSValue op2)
+{
+ bf_t a_s, b_s, *a, *b;
+ int res;
+
+ a = JS_ToBigFloat(ctx, &a_s, op1);
+ if (!a) {
+ JS_FreeValue(ctx, op2);
+ return -1;
+ }
+ b = JS_ToBigFloat(ctx, &b_s, op2);
+ if (!b) {
+ if (a == &a_s)
+ bf_delete(a);
+ JS_FreeValue(ctx, op1);
+ return -1;
+ }
+ switch(op) {
+ case OP_lt:
+ res = bf_cmp_lt(a, b); /* if NaN return false */
+ break;
+ case OP_lte:
+ res = bf_cmp_le(a, b); /* if NaN return false */
+ break;
+ case OP_gt:
+ res = bf_cmp_lt(b, a); /* if NaN return false */
+ break;
+ case OP_gte:
+ res = bf_cmp_le(b, a); /* if NaN return false */
+ break;
+ case OP_eq:
+ res = bf_cmp_eq(a, b); /* if NaN return false */
+ break;
+ default:
+ abort();
+ }
+ if (a == &a_s)
+ bf_delete(a);
+ if (b == &b_s)
+ bf_delete(b);
+ JS_FreeValue(ctx, op1);
+ JS_FreeValue(ctx, op2);
+ return res;
+}
+
+#ifdef CONFIG_BIGNUM
+static int js_compare_bigdecimal(JSContext *ctx, OPCodeEnum op,
+ JSValue op1, JSValue op2)
+{
+ bfdec_t *a, *b;
+ int res;
+
+ /* Note: binary floats are converted to bigdecimal with
+ toString(). It is not mathematically correct but is consistent
+ with the BigDecimal() constructor behavior */
+ op1 = JS_ToBigDecimalFree(ctx, op1, TRUE);
+ if (JS_IsException(op1)) {
+ JS_FreeValue(ctx, op2);
+ return -1;
+ }
+ op2 = JS_ToBigDecimalFree(ctx, op2, TRUE);
+ if (JS_IsException(op2)) {
+ JS_FreeValue(ctx, op1);
+ return -1;
+ }
+ a = JS_ToBigDecimal(ctx, op1); /* cannot fail */
+ b = JS_ToBigDecimal(ctx, op2); /* cannot fail */
+
+ switch(op) {
+ case OP_lt:
+ res = bfdec_cmp_lt(a, b); /* if NaN return false */
+ break;
+ case OP_lte:
+ res = bfdec_cmp_le(a, b); /* if NaN return false */
+ break;
+ case OP_gt:
+ res = bfdec_cmp_lt(b, a); /* if NaN return false */
+ break;
+ case OP_gte:
+ res = bfdec_cmp_le(b, a); /* if NaN return false */
+ break;
+ case OP_eq:
+ res = bfdec_cmp_eq(a, b); /* if NaN return false */
+ break;
+ default:
+ abort();
+ }
+ JS_FreeValue(ctx, op1);
+ JS_FreeValue(ctx, op2);
+ return res;
+}
+#endif /* !CONFIG_BIGNUM */
+
+static no_inline int js_relational_slow(JSContext *ctx, JSValue *sp,
+ OPCodeEnum op)
+{
+ JSValue op1, op2;
+ int res;
+ uint32_t tag1, tag2;
+
+ op1 = sp[-2];
+ op2 = sp[-1];
+ tag1 = JS_VALUE_GET_NORM_TAG(op1);
+ tag2 = JS_VALUE_GET_NORM_TAG(op2);
+#ifdef CONFIG_BIGNUM
+ /* try to call an overloaded operator */
+ if ((tag1 == JS_TAG_OBJECT &&
+ (tag2 != JS_TAG_NULL && tag2 != JS_TAG_UNDEFINED)) ||
+ (tag2 == JS_TAG_OBJECT &&
+ (tag1 != JS_TAG_NULL && tag1 != JS_TAG_UNDEFINED))) {
+ JSValue ret;
+ res = js_call_binary_op_fallback(ctx, &ret, op1, op2, op,
+ FALSE, HINT_NUMBER);
+ if (res != 0) {
+ JS_FreeValue(ctx, op1);
+ JS_FreeValue(ctx, op2);
+ if (res < 0) {
+ goto exception;
+ } else {
+ sp[-2] = ret;
+ return 0;
+ }
+ }
+ }
+#endif
+ op1 = JS_ToPrimitiveFree(ctx, op1, HINT_NUMBER);
+ if (JS_IsException(op1)) {
+ JS_FreeValue(ctx, op2);
+ goto exception;
+ }
+ op2 = JS_ToPrimitiveFree(ctx, op2, HINT_NUMBER);
+ if (JS_IsException(op2)) {
+ JS_FreeValue(ctx, op1);
+ goto exception;
+ }
+ tag1 = JS_VALUE_GET_NORM_TAG(op1);
+ tag2 = JS_VALUE_GET_NORM_TAG(op2);
+
+ if (tag1 == JS_TAG_STRING && tag2 == JS_TAG_STRING) {
+ JSString *p1, *p2;
+ p1 = JS_VALUE_GET_STRING(op1);
+ p2 = JS_VALUE_GET_STRING(op2);
+ res = js_string_compare(ctx, p1, p2);
+ switch(op) {
+ case OP_lt:
+ res = (res < 0);
+ break;
+ case OP_lte:
+ res = (res <= 0);
+ break;
+ case OP_gt:
+ res = (res > 0);
+ break;
+ default:
+ case OP_gte:
+ res = (res >= 0);
+ break;
+ }
+ JS_FreeValue(ctx, op1);
+ JS_FreeValue(ctx, op2);
+ } else if ((tag1 <= JS_TAG_NULL || tag1 == JS_TAG_FLOAT64) &&
+ (tag2 <= JS_TAG_NULL || tag2 == JS_TAG_FLOAT64)) {
+ /* fast path for float64/int */
+ goto float64_compare;
+ } else {
+ if (((tag1 == JS_TAG_BIG_INT && tag2 == JS_TAG_STRING) ||
+ (tag2 == JS_TAG_BIG_INT && tag1 == JS_TAG_STRING)) &&
+ !is_math_mode(ctx)) {
+ if (tag1 == JS_TAG_STRING) {
+ op1 = JS_StringToBigInt(ctx, op1);
+ if (JS_VALUE_GET_TAG(op1) != JS_TAG_BIG_INT)
+ goto invalid_bigint_string;
+ }
+ if (tag2 == JS_TAG_STRING) {
+ op2 = JS_StringToBigInt(ctx, op2);
+ if (JS_VALUE_GET_TAG(op2) != JS_TAG_BIG_INT) {
+ invalid_bigint_string:
+ JS_FreeValue(ctx, op1);
+ JS_FreeValue(ctx, op2);
+ res = FALSE;
+ goto done;
+ }
+ }
+ } else {
+ op1 = JS_ToNumericFree(ctx, op1);
+ if (JS_IsException(op1)) {
+ JS_FreeValue(ctx, op2);
+ goto exception;
+ }
+ op2 = JS_ToNumericFree(ctx, op2);
+ if (JS_IsException(op2)) {
+ JS_FreeValue(ctx, op1);
+ goto exception;
+ }
+ }
+
+ tag1 = JS_VALUE_GET_NORM_TAG(op1);
+ tag2 = JS_VALUE_GET_NORM_TAG(op2);
+
+#ifdef CONFIG_BIGNUM
+ if (tag1 == JS_TAG_BIG_DECIMAL || tag2 == JS_TAG_BIG_DECIMAL) {
+ res = ctx->rt->bigdecimal_ops.compare(ctx, op, op1, op2);
+ if (res < 0)
+ goto exception;
+ } else if (tag1 == JS_TAG_BIG_FLOAT || tag2 == JS_TAG_BIG_FLOAT) {
+ res = ctx->rt->bigfloat_ops.compare(ctx, op, op1, op2);
+ if (res < 0)
+ goto exception;
+ } else
+#endif
+ if (tag1 == JS_TAG_BIG_INT || tag2 == JS_TAG_BIG_INT) {
+ res = ctx->rt->bigint_ops.compare(ctx, op, op1, op2);
+ if (res < 0)
+ goto exception;
+ } else {
+ double d1, d2;
+
+ float64_compare:
+ /* can use floating point comparison */
+ if (tag1 == JS_TAG_FLOAT64) {
+ d1 = JS_VALUE_GET_FLOAT64(op1);
+ } else {
+ d1 = JS_VALUE_GET_INT(op1);
+ }
+ if (tag2 == JS_TAG_FLOAT64) {
+ d2 = JS_VALUE_GET_FLOAT64(op2);
+ } else {
+ d2 = JS_VALUE_GET_INT(op2);
+ }
+ switch(op) {
+ case OP_lt:
+ res = (d1 < d2); /* if NaN return false */
+ break;
+ case OP_lte:
+ res = (d1 <= d2); /* if NaN return false */
+ break;
+ case OP_gt:
+ res = (d1 > d2); /* if NaN return false */
+ break;
+ default:
+ case OP_gte:
+ res = (d1 >= d2); /* if NaN return false */
+ break;
+ }
+ }
+ }
+ done:
+ sp[-2] = JS_NewBool(ctx, res);
+ return 0;
+ exception:
+ sp[-2] = JS_UNDEFINED;
+ sp[-1] = JS_UNDEFINED;
+ return -1;
+}
+
+static BOOL tag_is_number(uint32_t tag)
+{
+ return (tag == JS_TAG_INT || tag == JS_TAG_BIG_INT ||
+ tag == JS_TAG_FLOAT64
+#ifdef CONFIG_BIGNUM
+ || tag == JS_TAG_BIG_FLOAT || tag == JS_TAG_BIG_DECIMAL
+#endif
+ );
+}
+
+static no_inline __exception int js_eq_slow(JSContext *ctx, JSValue *sp,
+ BOOL is_neq)
+{
+ JSValue op1, op2;
+#ifdef CONFIG_BIGNUM
+ JSValue ret;
+#endif
+ int res;
+ uint32_t tag1, tag2;
+
+ op1 = sp[-2];
+ op2 = sp[-1];
+ redo:
+ tag1 = JS_VALUE_GET_NORM_TAG(op1);
+ tag2 = JS_VALUE_GET_NORM_TAG(op2);
+ if (tag_is_number(tag1) && tag_is_number(tag2)) {
+ if (tag1 == JS_TAG_INT && tag2 == JS_TAG_INT) {
+ res = JS_VALUE_GET_INT(op1) == JS_VALUE_GET_INT(op2);
+ } else if ((tag1 == JS_TAG_FLOAT64 &&
+ (tag2 == JS_TAG_INT || tag2 == JS_TAG_FLOAT64)) ||
+ (tag2 == JS_TAG_FLOAT64 &&
+ (tag1 == JS_TAG_INT || tag1 == JS_TAG_FLOAT64))) {
+ double d1, d2;
+ if (tag1 == JS_TAG_FLOAT64) {
+ d1 = JS_VALUE_GET_FLOAT64(op1);
+ } else {
+ d1 = JS_VALUE_GET_INT(op1);
+ }
+ if (tag2 == JS_TAG_FLOAT64) {
+ d2 = JS_VALUE_GET_FLOAT64(op2);
+ } else {
+ d2 = JS_VALUE_GET_INT(op2);
+ }
+ res = (d1 == d2);
+ } else
+#ifdef CONFIG_BIGNUM
+ if (tag1 == JS_TAG_BIG_DECIMAL || tag2 == JS_TAG_BIG_DECIMAL) {
+ res = ctx->rt->bigdecimal_ops.compare(ctx, OP_eq, op1, op2);
+ if (res < 0)
+ goto exception;
+ } else if (tag1 == JS_TAG_BIG_FLOAT || tag2 == JS_TAG_BIG_FLOAT) {
+ res = ctx->rt->bigfloat_ops.compare(ctx, OP_eq, op1, op2);
+ if (res < 0)
+ goto exception;
+ } else
+#endif
+ {
+ res = ctx->rt->bigint_ops.compare(ctx, OP_eq, op1, op2);
+ if (res < 0)
+ goto exception;
+ }
+ } else if (tag1 == tag2) {
+#ifdef CONFIG_BIGNUM
+ if (tag1 == JS_TAG_OBJECT) {
+ /* try the fallback operator */
+ res = js_call_binary_op_fallback(ctx, &ret, op1, op2,
+ is_neq ? OP_neq : OP_eq,
+ FALSE, HINT_NONE);
+ if (res != 0) {
+ JS_FreeValue(ctx, op1);
+ JS_FreeValue(ctx, op2);
+ if (res < 0) {
+ goto exception;
+ } else {
+ sp[-2] = ret;
+ return 0;
+ }
+ }
+ }
+#endif
+ res = js_strict_eq2(ctx, op1, op2, JS_EQ_STRICT);
+ } else if ((tag1 == JS_TAG_NULL && tag2 == JS_TAG_UNDEFINED) ||
+ (tag2 == JS_TAG_NULL && tag1 == JS_TAG_UNDEFINED)) {
+ res = TRUE;
+ } else if ((tag1 == JS_TAG_STRING && tag_is_number(tag2)) ||
+ (tag2 == JS_TAG_STRING && tag_is_number(tag1))) {
+
+ if ((tag1 == JS_TAG_BIG_INT || tag2 == JS_TAG_BIG_INT) &&
+ !is_math_mode(ctx)) {
+ if (tag1 == JS_TAG_STRING) {
+ op1 = JS_StringToBigInt(ctx, op1);
+ if (JS_VALUE_GET_TAG(op1) != JS_TAG_BIG_INT)
+ goto invalid_bigint_string;
+ }
+ if (tag2 == JS_TAG_STRING) {
+ op2 = JS_StringToBigInt(ctx, op2);
+ if (JS_VALUE_GET_TAG(op2) != JS_TAG_BIG_INT) {
+ invalid_bigint_string:
+ JS_FreeValue(ctx, op1);
+ JS_FreeValue(ctx, op2);
+ res = FALSE;
+ goto done;
+ }
+ }
+ } else {
+ op1 = JS_ToNumericFree(ctx, op1);
+ if (JS_IsException(op1)) {
+ JS_FreeValue(ctx, op2);
+ goto exception;
+ }
+ op2 = JS_ToNumericFree(ctx, op2);
+ if (JS_IsException(op2)) {
+ JS_FreeValue(ctx, op1);
+ goto exception;
+ }
+ }
+ res = js_strict_eq(ctx, op1, op2);
+ } else if (tag1 == JS_TAG_BOOL) {
+ op1 = JS_NewInt32(ctx, JS_VALUE_GET_INT(op1));
+ goto redo;
+ } else if (tag2 == JS_TAG_BOOL) {
+ op2 = JS_NewInt32(ctx, JS_VALUE_GET_INT(op2));
+ goto redo;
+ } else if ((tag1 == JS_TAG_OBJECT &&
+ (tag_is_number(tag2) || tag2 == JS_TAG_STRING || tag2 == JS_TAG_SYMBOL)) ||
+ (tag2 == JS_TAG_OBJECT &&
+ (tag_is_number(tag1) || tag1 == JS_TAG_STRING || tag1 == JS_TAG_SYMBOL))) {
+#ifdef CONFIG_BIGNUM
+ /* try the fallback operator */
+ res = js_call_binary_op_fallback(ctx, &ret, op1, op2,
+ is_neq ? OP_neq : OP_eq,
+ FALSE, HINT_NONE);
+ if (res != 0) {
+ JS_FreeValue(ctx, op1);
+ JS_FreeValue(ctx, op2);
+ if (res < 0) {
+ goto exception;
+ } else {
+ sp[-2] = ret;
+ return 0;
+ }
+ }
+#endif
+ op1 = JS_ToPrimitiveFree(ctx, op1, HINT_NONE);
+ if (JS_IsException(op1)) {
+ JS_FreeValue(ctx, op2);
+ goto exception;
+ }
+ op2 = JS_ToPrimitiveFree(ctx, op2, HINT_NONE);
+ if (JS_IsException(op2)) {
+ JS_FreeValue(ctx, op1);
+ goto exception;
+ }
+ goto redo;
+ } else {
+ /* IsHTMLDDA object is equivalent to undefined for '==' and '!=' */
+ if ((JS_IsHTMLDDA(ctx, op1) &&
+ (tag2 == JS_TAG_NULL || tag2 == JS_TAG_UNDEFINED)) ||
+ (JS_IsHTMLDDA(ctx, op2) &&
+ (tag1 == JS_TAG_NULL || tag1 == JS_TAG_UNDEFINED))) {
+ res = TRUE;
+ } else {
+ res = FALSE;
+ }
+ JS_FreeValue(ctx, op1);
+ JS_FreeValue(ctx, op2);
+ }
+ done:
+ sp[-2] = JS_NewBool(ctx, res ^ is_neq);
+ return 0;
+ exception:
+ sp[-2] = JS_UNDEFINED;
+ sp[-1] = JS_UNDEFINED;
+ return -1;
+}
+
+static no_inline int js_shr_slow(JSContext *ctx, JSValue *sp)
+{
+ JSValue op1, op2;
+ uint32_t v1, v2, r;
+
+ op1 = sp[-2];
+ op2 = sp[-1];
+ op1 = JS_ToNumericFree(ctx, op1);
+ if (JS_IsException(op1)) {
+ JS_FreeValue(ctx, op2);
+ goto exception;
+ }
+ op2 = JS_ToNumericFree(ctx, op2);
+ if (JS_IsException(op2)) {
+ JS_FreeValue(ctx, op1);
+ goto exception;
+ }
+ /* XXX: could forbid >>> in bignum mode */
+ if (!is_math_mode(ctx) &&
+ (JS_VALUE_GET_TAG(op1) == JS_TAG_BIG_INT ||
+ JS_VALUE_GET_TAG(op2) == JS_TAG_BIG_INT)) {
+ JS_ThrowTypeError(ctx, "bigint operands are forbidden for >>>");
+ JS_FreeValue(ctx, op1);
+ JS_FreeValue(ctx, op2);
+ goto exception;
+ }
+ /* cannot give an exception */
+ JS_ToUint32Free(ctx, &v1, op1);
+ JS_ToUint32Free(ctx, &v2, op2);
+ r = v1 >> (v2 & 0x1f);
+ sp[-2] = JS_NewUint32(ctx, r);
+ return 0;
+ exception:
+ sp[-2] = JS_UNDEFINED;
+ sp[-1] = JS_UNDEFINED;
+ return -1;
+}
+
+#ifdef CONFIG_BIGNUM
+static JSValue js_mul_pow10_to_float64(JSContext *ctx, const bf_t *a,
+ int64_t exponent)
+{
+ bf_t r_s, *r = &r_s;
+ double d;
+ int ret;
+
+ /* always convert to Float64 */
+ bf_init(ctx->bf_ctx, r);
+ ret = bf_mul_pow_radix(r, a, 10, exponent,
+ 53, bf_set_exp_bits(11) | BF_RNDN |
+ BF_FLAG_SUBNORMAL);
+ bf_get_float64(r, &d, BF_RNDN);
+ bf_delete(r);
+ if (ret & BF_ST_MEM_ERROR)
+ return JS_ThrowOutOfMemory(ctx);
+ else
+ return __JS_NewFloat64(ctx, d);
+}
+
+static no_inline int js_mul_pow10(JSContext *ctx, JSValue *sp)
+{
+ bf_t a_s, *a, *r;
+ JSValue op1, op2, res;
+ int64_t e;
+ int ret;
+
+ res = JS_NewBigFloat(ctx);
+ if (JS_IsException(res))
+ return -1;
+ r = JS_GetBigFloat(res);
+ op1 = sp[-2];
+ op2 = sp[-1];
+ a = JS_ToBigFloat(ctx, &a_s, op1);
+ if (!a) {
+ JS_FreeValue(ctx, res);
+ return -1;
+ }
+ if (JS_IsBigInt(ctx, op2)) {
+ ret = JS_ToBigInt64(ctx, &e, op2);
+ } else {
+ ret = JS_ToInt64(ctx, &e, op2);
+ }
+ if (ret) {
+ if (a == &a_s)
+ bf_delete(a);
+ JS_FreeValue(ctx, res);
+ return -1;
+ }
+
+ bf_mul_pow_radix(r, a, 10, e, ctx->fp_env.prec, ctx->fp_env.flags);
+ if (a == &a_s)
+ bf_delete(a);
+ JS_FreeValue(ctx, op1);
+ JS_FreeValue(ctx, op2);
+ sp[-2] = res;
+ return 0;
+}
+#endif
+
+/* XXX: Should take JSValueConst arguments */
+static BOOL js_strict_eq2(JSContext *ctx, JSValue op1, JSValue op2,
+ JSStrictEqModeEnum eq_mode)
+{
+ BOOL res;
+ int tag1, tag2;
+ double d1, d2;
+
+ tag1 = JS_VALUE_GET_NORM_TAG(op1);
+ tag2 = JS_VALUE_GET_NORM_TAG(op2);
+ switch(tag1) {
+ case JS_TAG_BOOL:
+ if (tag1 != tag2) {
+ res = FALSE;
+ } else {
+ res = JS_VALUE_GET_INT(op1) == JS_VALUE_GET_INT(op2);
+ goto done_no_free;
+ }
+ break;
+ case JS_TAG_NULL:
+ case JS_TAG_UNDEFINED:
+ res = (tag1 == tag2);
+ break;
+ case JS_TAG_STRING:
+ {
+ JSString *p1, *p2;
+ if (tag1 != tag2) {
+ res = FALSE;
+ } else {
+ p1 = JS_VALUE_GET_STRING(op1);
+ p2 = JS_VALUE_GET_STRING(op2);
+ res = (js_string_compare(ctx, p1, p2) == 0);
+ }
+ }
+ break;
+ case JS_TAG_SYMBOL:
+ {
+ JSAtomStruct *p1, *p2;
+ if (tag1 != tag2) {
+ res = FALSE;
+ } else {
+ p1 = JS_VALUE_GET_PTR(op1);
+ p2 = JS_VALUE_GET_PTR(op2);
+ res = (p1 == p2);
+ }
+ }
+ break;
+ case JS_TAG_OBJECT:
+ if (tag1 != tag2)
+ res = FALSE;
+ else
+ res = JS_VALUE_GET_OBJ(op1) == JS_VALUE_GET_OBJ(op2);
+ break;
+ case JS_TAG_INT:
+ d1 = JS_VALUE_GET_INT(op1);
+ if (tag2 == JS_TAG_INT) {
+ d2 = JS_VALUE_GET_INT(op2);
+ goto number_test;
+ } else if (tag2 == JS_TAG_FLOAT64) {
+ d2 = JS_VALUE_GET_FLOAT64(op2);
+ goto number_test;
+ } else {
+ res = FALSE;
+ }
+ break;
+ case JS_TAG_FLOAT64:
+ d1 = JS_VALUE_GET_FLOAT64(op1);
+ if (tag2 == JS_TAG_FLOAT64) {
+ d2 = JS_VALUE_GET_FLOAT64(op2);
+ } else if (tag2 == JS_TAG_INT) {
+ d2 = JS_VALUE_GET_INT(op2);
+ } else {
+ res = FALSE;
+ break;
+ }
+ number_test:
+ if (unlikely(eq_mode >= JS_EQ_SAME_VALUE)) {
+ JSFloat64Union u1, u2;
+ /* NaN is not always normalized, so this test is necessary */
+ if (isnan(d1) || isnan(d2)) {
+ res = isnan(d1) == isnan(d2);
+ } else if (eq_mode == JS_EQ_SAME_VALUE_ZERO) {
+ res = (d1 == d2); /* +0 == -0 */
+ } else {
+ u1.d = d1;
+ u2.d = d2;
+ res = (u1.u64 == u2.u64); /* +0 != -0 */
+ }
+ } else {
+ res = (d1 == d2); /* if NaN return false and +0 == -0 */
+ }
+ goto done_no_free;
+ case JS_TAG_BIG_INT:
+ {
+ bf_t a_s, *a, b_s, *b;
+ if (tag1 != tag2) {
+ res = FALSE;
+ break;
+ }
+ a = JS_ToBigFloat(ctx, &a_s, op1); /* cannot fail */
+ b = JS_ToBigFloat(ctx, &b_s, op2); /* cannot fail */
+ res = bf_cmp_eq(a, b);
+ if (a == &a_s)
+ bf_delete(a);
+ if (b == &b_s)
+ bf_delete(b);
+ }
+ break;
+#ifdef CONFIG_BIGNUM
+ case JS_TAG_BIG_FLOAT:
+ {
+ JSBigFloat *p1, *p2;
+ const bf_t *a, *b;
+ if (tag1 != tag2) {
+ res = FALSE;
+ break;
+ }
+ p1 = JS_VALUE_GET_PTR(op1);
+ p2 = JS_VALUE_GET_PTR(op2);
+ a = &p1->num;
+ b = &p2->num;
+ if (unlikely(eq_mode >= JS_EQ_SAME_VALUE)) {
+ if (eq_mode == JS_EQ_SAME_VALUE_ZERO &&
+ a->expn == BF_EXP_ZERO && b->expn == BF_EXP_ZERO) {
+ res = TRUE;
+ } else {
+ res = (bf_cmp_full(a, b) == 0);
+ }
+ } else {
+ res = bf_cmp_eq(a, b);
+ }
+ }
+ break;
+ case JS_TAG_BIG_DECIMAL:
+ {
+ JSBigDecimal *p1, *p2;
+ const bfdec_t *a, *b;
+ if (tag1 != tag2) {
+ res = FALSE;
+ break;
+ }
+ p1 = JS_VALUE_GET_PTR(op1);
+ p2 = JS_VALUE_GET_PTR(op2);
+ a = &p1->num;
+ b = &p2->num;
+ res = bfdec_cmp_eq(a, b);
+ }
+ break;
+#endif
+ default:
+ res = FALSE;
+ break;
+ }
+ JS_FreeValue(ctx, op1);
+ JS_FreeValue(ctx, op2);
+ done_no_free:
+ return res;
+}
+
+static BOOL js_strict_eq(JSContext *ctx, JSValue op1, JSValue op2)
+{
+ return js_strict_eq2(ctx, op1, op2, JS_EQ_STRICT);
+}
+
+static BOOL js_same_value(JSContext *ctx, JSValueConst op1, JSValueConst op2)
+{
+ return js_strict_eq2(ctx,
+ JS_DupValue(ctx, op1), JS_DupValue(ctx, op2),
+ JS_EQ_SAME_VALUE);
+}
+
+static BOOL js_same_value_zero(JSContext *ctx, JSValueConst op1, JSValueConst op2)
+{
+ return js_strict_eq2(ctx,
+ JS_DupValue(ctx, op1), JS_DupValue(ctx, op2),
+ JS_EQ_SAME_VALUE_ZERO);
+}
+
+static no_inline int js_strict_eq_slow(JSContext *ctx, JSValue *sp,
+ BOOL is_neq)
+{
+ BOOL res;
+ res = js_strict_eq(ctx, sp[-2], sp[-1]);
+ sp[-2] = JS_NewBool(ctx, res ^ is_neq);
+ return 0;
+}
+
+static __exception int js_operator_in(JSContext *ctx, JSValue *sp)
+{
+ JSValue op1, op2;
+ JSAtom atom;
+ int ret;
+
+ op1 = sp[-2];
+ op2 = sp[-1];
+
+ if (JS_VALUE_GET_TAG(op2) != JS_TAG_OBJECT) {
+ JS_ThrowTypeError(ctx, "invalid 'in' operand");
+ return -1;
+ }
+ atom = JS_ValueToAtom(ctx, op1);
+ if (unlikely(atom == JS_ATOM_NULL))
+ return -1;
+ ret = JS_HasProperty(ctx, op2, atom);
+ JS_FreeAtom(ctx, atom);
+ if (ret < 0)
+ return -1;
+ JS_FreeValue(ctx, op1);
+ JS_FreeValue(ctx, op2);
+ sp[-2] = JS_NewBool(ctx, ret);
+ return 0;
+}
+
+static __exception int js_operator_private_in(JSContext *ctx, JSValue *sp)
+{
+ JSValue op1, op2;
+ int ret;
+
+ op1 = sp[-2]; /* object */
+ op2 = sp[-1]; /* field name or method function */
+
+ if (JS_VALUE_GET_TAG(op1) != JS_TAG_OBJECT) {
+ JS_ThrowTypeError(ctx, "invalid 'in' operand");
+ return -1;
+ }
+ if (JS_IsObject(op2)) {
+ /* method: use the brand */
+ ret = JS_CheckBrand(ctx, op1, op2);
+ if (ret < 0)
+ return -1;
+ } else {
+ JSAtom atom;
+ JSObject *p;
+ JSShapeProperty *prs;
+ JSProperty *pr;
+ /* field */
+ atom = JS_ValueToAtom(ctx, op2);
+ if (unlikely(atom == JS_ATOM_NULL))
+ return -1;
+ p = JS_VALUE_GET_OBJ(op1);
+ prs = find_own_property(&pr, p, atom);
+ JS_FreeAtom(ctx, atom);
+ ret = (prs != NULL);
+ }
+ JS_FreeValue(ctx, op1);
+ JS_FreeValue(ctx, op2);
+ sp[-2] = JS_NewBool(ctx, ret);
+ return 0;
+}
+
+static __exception int js_has_unscopable(JSContext *ctx, JSValueConst obj,
+ JSAtom atom)
+{
+ JSValue arr, val;
+ int ret;
+
+ arr = JS_GetProperty(ctx, obj, JS_ATOM_Symbol_unscopables);
+ if (JS_IsException(arr))
+ return -1;
+ ret = 0;
+ if (JS_IsObject(arr)) {
+ val = JS_GetProperty(ctx, arr, atom);
+ ret = JS_ToBoolFree(ctx, val);
+ }
+ JS_FreeValue(ctx, arr);
+ return ret;
+}
+
+static __exception int js_operator_instanceof(JSContext *ctx, JSValue *sp)
+{
+ JSValue op1, op2;
+ BOOL ret;
+
+ op1 = sp[-2];
+ op2 = sp[-1];
+ ret = JS_IsInstanceOf(ctx, op1, op2);
+ if (ret < 0)
+ return ret;
+ JS_FreeValue(ctx, op1);
+ JS_FreeValue(ctx, op2);
+ sp[-2] = JS_NewBool(ctx, ret);
+ return 0;
+}
+
+static __exception int js_operator_typeof(JSContext *ctx, JSValueConst op1)
+{
+ JSAtom atom;
+ uint32_t tag;
+
+ tag = JS_VALUE_GET_NORM_TAG(op1);
+ switch(tag) {
+ case JS_TAG_BIG_INT:
+ atom = JS_ATOM_bigint;
+ break;
+#ifdef CONFIG_BIGNUM
+ case JS_TAG_BIG_FLOAT:
+ atom = JS_ATOM_bigfloat;
+ break;
+ case JS_TAG_BIG_DECIMAL:
+ atom = JS_ATOM_bigdecimal;
+ break;
+#endif
+ case JS_TAG_INT:
+ case JS_TAG_FLOAT64:
+ atom = JS_ATOM_number;
+ break;
+ case JS_TAG_UNDEFINED:
+ atom = JS_ATOM_undefined;
+ break;
+ case JS_TAG_BOOL:
+ atom = JS_ATOM_boolean;
+ break;
+ case JS_TAG_STRING:
+ atom = JS_ATOM_string;
+ break;
+ case JS_TAG_OBJECT:
+ {
+ JSObject *p;
+ p = JS_VALUE_GET_OBJ(op1);
+ if (unlikely(p->is_HTMLDDA))
+ atom = JS_ATOM_undefined;
+ else if (JS_IsFunction(ctx, op1))
+ atom = JS_ATOM_function;
+ else
+ goto obj_type;
+ }
+ break;
+ case JS_TAG_NULL:
+ obj_type:
+ atom = JS_ATOM_object;
+ break;
+ case JS_TAG_SYMBOL:
+ atom = JS_ATOM_symbol;
+ break;
+ default:
+ atom = JS_ATOM_unknown;
+ break;
+ }
+ return atom;
+}
+
+static __exception int js_operator_delete(JSContext *ctx, JSValue *sp)
+{
+ JSValue op1, op2;
+ JSAtom atom;
+ int ret;
+
+ op1 = sp[-2];
+ op2 = sp[-1];
+ atom = JS_ValueToAtom(ctx, op2);
+ if (unlikely(atom == JS_ATOM_NULL))
+ return -1;
+ ret = JS_DeleteProperty(ctx, op1, atom, JS_PROP_THROW_STRICT);
+ JS_FreeAtom(ctx, atom);
+ if (unlikely(ret < 0))
+ return -1;
+ JS_FreeValue(ctx, op1);
+ JS_FreeValue(ctx, op2);
+ sp[-2] = JS_NewBool(ctx, ret);
+ return 0;
+}
+
+static JSValue js_throw_type_error(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ return JS_ThrowTypeError(ctx, "invalid property access");
+}
+
+/* XXX: not 100% compatible, but mozilla seems to use a similar
+ implementation to ensure that caller in non strict mode does not
+ throw (ES5 compatibility) */
+static JSValue js_function_proto_caller(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSFunctionBytecode *b = JS_GetFunctionBytecode(this_val);
+ if (!b || (b->js_mode & JS_MODE_STRICT) || !b->has_prototype) {
+ return js_throw_type_error(ctx, this_val, 0, NULL);
+ }
+ return JS_UNDEFINED;
+}
+
+static JSValue js_function_proto_fileName(JSContext *ctx,
+ JSValueConst this_val)
+{
+ JSFunctionBytecode *b = JS_GetFunctionBytecode(this_val);
+ if (b && b->has_debug) {
+ return JS_AtomToString(ctx, b->debug.filename);
+ }
+ return JS_UNDEFINED;
+}
+
+static JSValue js_function_proto_lineNumber(JSContext *ctx,
+ JSValueConst this_val)
+{
+ JSFunctionBytecode *b = JS_GetFunctionBytecode(this_val);
+ if (b && b->has_debug) {
+ return JS_NewInt32(ctx, b->debug.line_num);
+ }
+ return JS_UNDEFINED;
+}
+
+static int js_arguments_define_own_property(JSContext *ctx,
+ JSValueConst this_obj,
+ JSAtom prop, JSValueConst val,
+ JSValueConst getter, JSValueConst setter, int flags)
+{
+ JSObject *p;
+ uint32_t idx;
+ p = JS_VALUE_GET_OBJ(this_obj);
+ /* convert to normal array when redefining an existing numeric field */
+ if (p->fast_array && JS_AtomIsArrayIndex(ctx, &idx, prop) &&
+ idx < p->u.array.count) {
+ if (convert_fast_array_to_array(ctx, p))
+ return -1;
+ }
+ /* run the default define own property */
+ return JS_DefineProperty(ctx, this_obj, prop, val, getter, setter,
+ flags | JS_PROP_NO_EXOTIC);
+}
+
+static const JSClassExoticMethods js_arguments_exotic_methods = {
+ .define_own_property = js_arguments_define_own_property,
+};
+
+static JSValue js_build_arguments(JSContext *ctx, int argc, JSValueConst *argv)
+{
+ JSValue val, *tab;
+ JSProperty *pr;
+ JSObject *p;
+ int i;
+
+ val = JS_NewObjectProtoClass(ctx, ctx->class_proto[JS_CLASS_OBJECT],
+ JS_CLASS_ARGUMENTS);
+ if (JS_IsException(val))
+ return val;
+ p = JS_VALUE_GET_OBJ(val);
+
+ /* add the length field (cannot fail) */
+ pr = add_property(ctx, p, JS_ATOM_length,
+ JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE);
+ pr->u.value = JS_NewInt32(ctx, argc);
+
+ /* initialize the fast array part */
+ tab = NULL;
+ if (argc > 0) {
+ tab = js_malloc(ctx, sizeof(tab[0]) * argc);
+ if (!tab) {
+ JS_FreeValue(ctx, val);
+ return JS_EXCEPTION;
+ }
+ for(i = 0; i < argc; i++) {
+ tab[i] = JS_DupValue(ctx, argv[i]);
+ }
+ }
+ p->u.array.u.values = tab;
+ p->u.array.count = argc;
+
+ JS_DefinePropertyValue(ctx, val, JS_ATOM_Symbol_iterator,
+ JS_DupValue(ctx, ctx->array_proto_values),
+ JS_PROP_CONFIGURABLE | JS_PROP_WRITABLE);
+ /* add callee property to throw a TypeError in strict mode */
+ JS_DefineProperty(ctx, val, JS_ATOM_callee, JS_UNDEFINED,
+ ctx->throw_type_error, ctx->throw_type_error,
+ JS_PROP_HAS_GET | JS_PROP_HAS_SET);
+ return val;
+}
+
+#define GLOBAL_VAR_OFFSET 0x40000000
+#define ARGUMENT_VAR_OFFSET 0x20000000
+
+/* legacy arguments object: add references to the function arguments */
+static JSValue js_build_mapped_arguments(JSContext *ctx, int argc,
+ JSValueConst *argv,
+ JSStackFrame *sf, int arg_count)
+{
+ JSValue val;
+ JSProperty *pr;
+ JSObject *p;
+ int i;
+
+ val = JS_NewObjectProtoClass(ctx, ctx->class_proto[JS_CLASS_OBJECT],
+ JS_CLASS_MAPPED_ARGUMENTS);
+ if (JS_IsException(val))
+ return val;
+ p = JS_VALUE_GET_OBJ(val);
+
+ /* add the length field (cannot fail) */
+ pr = add_property(ctx, p, JS_ATOM_length,
+ JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE);
+ pr->u.value = JS_NewInt32(ctx, argc);
+
+ for(i = 0; i < arg_count; i++) {
+ JSVarRef *var_ref;
+ var_ref = get_var_ref(ctx, sf, i, TRUE);
+ if (!var_ref)
+ goto fail;
+ pr = add_property(ctx, p, __JS_AtomFromUInt32(i), JS_PROP_C_W_E | JS_PROP_VARREF);
+ if (!pr) {
+ free_var_ref(ctx->rt, var_ref);
+ goto fail;
+ }
+ pr->u.var_ref = var_ref;
+ }
+
+ /* the arguments not mapped to the arguments of the function can
+ be normal properties */
+ for(i = arg_count; i < argc; i++) {
+ if (JS_DefinePropertyValueUint32(ctx, val, i,
+ JS_DupValue(ctx, argv[i]),
+ JS_PROP_C_W_E) < 0)
+ goto fail;
+ }
+
+ JS_DefinePropertyValue(ctx, val, JS_ATOM_Symbol_iterator,
+ JS_DupValue(ctx, ctx->array_proto_values),
+ JS_PROP_CONFIGURABLE | JS_PROP_WRITABLE);
+ /* callee returns this function in non strict mode */
+ JS_DefinePropertyValue(ctx, val, JS_ATOM_callee,
+ JS_DupValue(ctx, ctx->rt->current_stack_frame->cur_func),
+ JS_PROP_CONFIGURABLE | JS_PROP_WRITABLE);
+ return val;
+ fail:
+ JS_FreeValue(ctx, val);
+ return JS_EXCEPTION;
+}
+
+static JSValue js_build_rest(JSContext *ctx, int first, int argc, JSValueConst *argv)
+{
+ JSValue val;
+ int i, ret;
+
+ val = JS_NewArray(ctx);
+ if (JS_IsException(val))
+ return val;
+ for (i = first; i < argc; i++) {
+ ret = JS_DefinePropertyValueUint32(ctx, val, i - first,
+ JS_DupValue(ctx, argv[i]),
+ JS_PROP_C_W_E);
+ if (ret < 0) {
+ JS_FreeValue(ctx, val);
+ return JS_EXCEPTION;
+ }
+ }
+ return val;
+}
+
+static JSValue build_for_in_iterator(JSContext *ctx, JSValue obj)
+{
+ JSObject *p, *p1;
+ JSPropertyEnum *tab_atom;
+ int i;
+ JSValue enum_obj;
+ JSForInIterator *it;
+ uint32_t tag, tab_atom_count;
+
+ tag = JS_VALUE_GET_TAG(obj);
+ if (tag != JS_TAG_OBJECT && tag != JS_TAG_NULL && tag != JS_TAG_UNDEFINED) {
+ obj = JS_ToObjectFree(ctx, obj);
+ }
+
+ it = js_malloc(ctx, sizeof(*it));
+ if (!it) {
+ JS_FreeValue(ctx, obj);
+ return JS_EXCEPTION;
+ }
+ enum_obj = JS_NewObjectProtoClass(ctx, JS_NULL, JS_CLASS_FOR_IN_ITERATOR);
+ if (JS_IsException(enum_obj)) {
+ js_free(ctx, it);
+ JS_FreeValue(ctx, obj);
+ return JS_EXCEPTION;
+ }
+ it->is_array = FALSE;
+ it->obj = obj;
+ it->idx = 0;
+ it->tab_atom = NULL;
+ it->atom_count = 0;
+ it->in_prototype_chain = FALSE;
+ p1 = JS_VALUE_GET_OBJ(enum_obj);
+ p1->u.for_in_iterator = it;
+
+ if (tag == JS_TAG_NULL || tag == JS_TAG_UNDEFINED)
+ return enum_obj;
+
+ p = JS_VALUE_GET_OBJ(obj);
+ if (p->fast_array) {
+ JSShape *sh;
+ JSShapeProperty *prs;
+ /* check that there are no enumerable normal fields */
+ sh = p->shape;
+ for(i = 0, prs = get_shape_prop(sh); i < sh->prop_count; i++, prs++) {
+ if (prs->flags & JS_PROP_ENUMERABLE)
+ goto normal_case;
+ }
+ /* for fast arrays, we only store the number of elements */
+ it->is_array = TRUE;
+ it->atom_count = p->u.array.count;
+ } else {
+ normal_case:
+ if (JS_GetOwnPropertyNamesInternal(ctx, &tab_atom, &tab_atom_count, p,
+ JS_GPN_STRING_MASK | JS_GPN_SET_ENUM)) {
+ JS_FreeValue(ctx, enum_obj);
+ return JS_EXCEPTION;
+ }
+ it->tab_atom = tab_atom;
+ it->atom_count = tab_atom_count;
+ }
+ return enum_obj;
+}
+
+/* obj -> enum_obj */
+static __exception int js_for_in_start(JSContext *ctx, JSValue *sp)
+{
+ sp[-1] = build_for_in_iterator(ctx, sp[-1]);
+ if (JS_IsException(sp[-1]))
+ return -1;
+ return 0;
+}
+
+/* return -1 if exception, 0 if slow case, 1 if the enumeration is finished */
+static __exception int js_for_in_prepare_prototype_chain_enum(JSContext *ctx,
+ JSValueConst enum_obj)
+{
+ JSObject *p;
+ JSForInIterator *it;
+ JSPropertyEnum *tab_atom;
+ uint32_t tab_atom_count, i;
+ JSValue obj1;
+
+ p = JS_VALUE_GET_OBJ(enum_obj);
+ it = p->u.for_in_iterator;
+
+ /* check if there are enumerable properties in the prototype chain (fast path) */
+ obj1 = JS_DupValue(ctx, it->obj);
+ for(;;) {
+ obj1 = JS_GetPrototypeFree(ctx, obj1);
+ if (JS_IsNull(obj1))
+ break;
+ if (JS_IsException(obj1))
+ goto fail;
+ if (JS_GetOwnPropertyNamesInternal(ctx, &tab_atom, &tab_atom_count,
+ JS_VALUE_GET_OBJ(obj1),
+ JS_GPN_STRING_MASK | JS_GPN_ENUM_ONLY)) {
+ JS_FreeValue(ctx, obj1);
+ goto fail;
+ }
+ js_free_prop_enum(ctx, tab_atom, tab_atom_count);
+ if (tab_atom_count != 0) {
+ JS_FreeValue(ctx, obj1);
+ goto slow_path;
+ }
+ /* must check for timeout to avoid infinite loop */
+ if (js_poll_interrupts(ctx)) {
+ JS_FreeValue(ctx, obj1);
+ goto fail;
+ }
+ }
+ JS_FreeValue(ctx, obj1);
+ return 1;
+
+ slow_path:
+ /* add the visited properties, even if they are not enumerable */
+ if (it->is_array) {
+ if (JS_GetOwnPropertyNamesInternal(ctx, &tab_atom, &tab_atom_count,
+ JS_VALUE_GET_OBJ(it->obj),
+ JS_GPN_STRING_MASK | JS_GPN_SET_ENUM)) {
+ goto fail;
+ }
+ it->is_array = FALSE;
+ it->tab_atom = tab_atom;
+ it->atom_count = tab_atom_count;
+ }
+
+ for(i = 0; i < it->atom_count; i++) {
+ if (JS_DefinePropertyValue(ctx, enum_obj, it->tab_atom[i].atom, JS_NULL, JS_PROP_ENUMERABLE) < 0)
+ goto fail;
+ }
+ return 0;
+ fail:
+ return -1;
+}
+
+/* enum_obj -> enum_obj value done */
+static __exception int js_for_in_next(JSContext *ctx, JSValue *sp)
+{
+ JSValueConst enum_obj;
+ JSObject *p;
+ JSAtom prop;
+ JSForInIterator *it;
+ JSPropertyEnum *tab_atom;
+ uint32_t tab_atom_count;
+ int ret;
+
+ enum_obj = sp[-1];
+ /* fail safe */
+ if (JS_VALUE_GET_TAG(enum_obj) != JS_TAG_OBJECT)
+ goto done;
+ p = JS_VALUE_GET_OBJ(enum_obj);
+ if (p->class_id != JS_CLASS_FOR_IN_ITERATOR)
+ goto done;
+ it = p->u.for_in_iterator;
+
+ for(;;) {
+ if (it->idx >= it->atom_count) {
+ if (JS_IsNull(it->obj) || JS_IsUndefined(it->obj))
+ goto done; /* not an object */
+ /* no more property in the current object: look in the prototype */
+ if (!it->in_prototype_chain) {
+ ret = js_for_in_prepare_prototype_chain_enum(ctx, enum_obj);
+ if (ret < 0)
+ return -1;
+ if (ret)
+ goto done;
+ it->in_prototype_chain = TRUE;
+ }
+ it->obj = JS_GetPrototypeFree(ctx, it->obj);
+ if (JS_IsException(it->obj))
+ return -1;
+ if (JS_IsNull(it->obj))
+ goto done; /* no more prototype */
+
+ /* must check for timeout to avoid infinite loop */
+ if (js_poll_interrupts(ctx))
+ return -1;
+
+ if (JS_GetOwnPropertyNamesInternal(ctx, &tab_atom, &tab_atom_count,
+ JS_VALUE_GET_OBJ(it->obj),
+ JS_GPN_STRING_MASK | JS_GPN_SET_ENUM)) {
+ return -1;
+ }
+ js_free_prop_enum(ctx, it->tab_atom, it->atom_count);
+ it->tab_atom = tab_atom;
+ it->atom_count = tab_atom_count;
+ it->idx = 0;
+ } else {
+ if (it->is_array) {
+ prop = __JS_AtomFromUInt32(it->idx);
+ it->idx++;
+ } else {
+ BOOL is_enumerable;
+ prop = it->tab_atom[it->idx].atom;
+ is_enumerable = it->tab_atom[it->idx].is_enumerable;
+ it->idx++;
+ if (it->in_prototype_chain) {
+ /* slow case: we are in the prototype chain */
+ ret = JS_GetOwnPropertyInternal(ctx, NULL, JS_VALUE_GET_OBJ(enum_obj), prop);
+ if (ret < 0)
+ return ret;
+ if (ret)
+ continue; /* already visited */
+ /* add to the visited property list */
+ if (JS_DefinePropertyValue(ctx, enum_obj, prop, JS_NULL,
+ JS_PROP_ENUMERABLE) < 0)
+ return -1;
+ }
+ if (!is_enumerable)
+ continue;
+ }
+ /* check if the property was deleted */
+ ret = JS_GetOwnPropertyInternal(ctx, NULL, JS_VALUE_GET_OBJ(it->obj), prop);
+ if (ret < 0)
+ return ret;
+ if (ret)
+ break;
+ }
+ }
+ /* return the property */
+ sp[0] = JS_AtomToValue(ctx, prop);
+ sp[1] = JS_FALSE;
+ return 0;
+ done:
+ /* return the end */
+ sp[0] = JS_UNDEFINED;
+ sp[1] = JS_TRUE;
+ return 0;
+}
+
+static JSValue JS_GetIterator2(JSContext *ctx, JSValueConst obj,
+ JSValueConst method)
+{
+ JSValue enum_obj;
+
+ enum_obj = JS_Call(ctx, method, obj, 0, NULL);
+ if (JS_IsException(enum_obj))
+ return enum_obj;
+ if (!JS_IsObject(enum_obj)) {
+ JS_FreeValue(ctx, enum_obj);
+ return JS_ThrowTypeErrorNotAnObject(ctx);
+ }
+ return enum_obj;
+}
+
+static JSValue JS_GetIterator(JSContext *ctx, JSValueConst obj, BOOL is_async)
+{
+ JSValue method, ret, sync_iter;
+
+ if (is_async) {
+ method = JS_GetProperty(ctx, obj, JS_ATOM_Symbol_asyncIterator);
+ if (JS_IsException(method))
+ return method;
+ if (JS_IsUndefined(method) || JS_IsNull(method)) {
+ method = JS_GetProperty(ctx, obj, JS_ATOM_Symbol_iterator);
+ if (JS_IsException(method))
+ return method;
+ sync_iter = JS_GetIterator2(ctx, obj, method);
+ JS_FreeValue(ctx, method);
+ if (JS_IsException(sync_iter))
+ return sync_iter;
+ ret = JS_CreateAsyncFromSyncIterator(ctx, sync_iter);
+ JS_FreeValue(ctx, sync_iter);
+ return ret;
+ }
+ } else {
+ method = JS_GetProperty(ctx, obj, JS_ATOM_Symbol_iterator);
+ if (JS_IsException(method))
+ return method;
+ }
+ if (!JS_IsFunction(ctx, method)) {
+ JS_FreeValue(ctx, method);
+ return JS_ThrowTypeError(ctx, "value is not iterable");
+ }
+ ret = JS_GetIterator2(ctx, obj, method);
+ JS_FreeValue(ctx, method);
+ return ret;
+}
+
+/* return *pdone = 2 if the iterator object is not parsed */
+static JSValue JS_IteratorNext2(JSContext *ctx, JSValueConst enum_obj,
+ JSValueConst method,
+ int argc, JSValueConst *argv, int *pdone)
+{
+ JSValue obj;
+
+ /* fast path for the built-in iterators (avoid creating the
+ intermediate result object) */
+ if (JS_IsObject(method)) {
+ JSObject *p = JS_VALUE_GET_OBJ(method);
+ if (p->class_id == JS_CLASS_C_FUNCTION &&
+ p->u.cfunc.cproto == JS_CFUNC_iterator_next) {
+ JSCFunctionType func;
+ JSValueConst args[1];
+
+ /* in case the function expects one argument */
+ if (argc == 0) {
+ args[0] = JS_UNDEFINED;
+ argv = args;
+ }
+ func = p->u.cfunc.c_function;
+ return func.iterator_next(ctx, enum_obj, argc, argv,
+ pdone, p->u.cfunc.magic);
+ }
+ }
+ obj = JS_Call(ctx, method, enum_obj, argc, argv);
+ if (JS_IsException(obj))
+ goto fail;
+ if (!JS_IsObject(obj)) {
+ JS_FreeValue(ctx, obj);
+ JS_ThrowTypeError(ctx, "iterator must return an object");
+ goto fail;
+ }
+ *pdone = 2;
+ return obj;
+ fail:
+ *pdone = FALSE;
+ return JS_EXCEPTION;
+}
+
+static JSValue JS_IteratorNext(JSContext *ctx, JSValueConst enum_obj,
+ JSValueConst method,
+ int argc, JSValueConst *argv, BOOL *pdone)
+{
+ JSValue obj, value, done_val;
+ int done;
+
+ obj = JS_IteratorNext2(ctx, enum_obj, method, argc, argv, &done);
+ if (JS_IsException(obj))
+ goto fail;
+ if (done != 2) {
+ *pdone = done;
+ return obj;
+ } else {
+ done_val = JS_GetProperty(ctx, obj, JS_ATOM_done);
+ if (JS_IsException(done_val))
+ goto fail;
+ *pdone = JS_ToBoolFree(ctx, done_val);
+ value = JS_UNDEFINED;
+ if (!*pdone) {
+ value = JS_GetProperty(ctx, obj, JS_ATOM_value);
+ }
+ JS_FreeValue(ctx, obj);
+ return value;
+ }
+ fail:
+ JS_FreeValue(ctx, obj);
+ *pdone = FALSE;
+ return JS_EXCEPTION;
+}
+
+/* return < 0 in case of exception */
+static int JS_IteratorClose(JSContext *ctx, JSValueConst enum_obj,
+ BOOL is_exception_pending)
+{
+ JSValue method, ret, ex_obj;
+ int res;
+
+ if (is_exception_pending) {
+ ex_obj = ctx->rt->current_exception;
+ ctx->rt->current_exception = JS_NULL;
+ res = -1;
+ } else {
+ ex_obj = JS_UNDEFINED;
+ res = 0;
+ }
+ method = JS_GetProperty(ctx, enum_obj, JS_ATOM_return);
+ if (JS_IsException(method)) {
+ res = -1;
+ goto done;
+ }
+ if (JS_IsUndefined(method) || JS_IsNull(method)) {
+ goto done;
+ }
+ ret = JS_CallFree(ctx, method, enum_obj, 0, NULL);
+ if (!is_exception_pending) {
+ if (JS_IsException(ret)) {
+ res = -1;
+ } else if (!JS_IsObject(ret)) {
+ JS_ThrowTypeErrorNotAnObject(ctx);
+ res = -1;
+ }
+ }
+ JS_FreeValue(ctx, ret);
+ done:
+ if (is_exception_pending) {
+ JS_Throw(ctx, ex_obj);
+ }
+ return res;
+}
+
+/* obj -> enum_rec (3 slots) */
+static __exception int js_for_of_start(JSContext *ctx, JSValue *sp,
+ BOOL is_async)
+{
+ JSValue op1, obj, method;
+ op1 = sp[-1];
+ obj = JS_GetIterator(ctx, op1, is_async);
+ if (JS_IsException(obj))
+ return -1;
+ JS_FreeValue(ctx, op1);
+ sp[-1] = obj;
+ method = JS_GetProperty(ctx, obj, JS_ATOM_next);
+ if (JS_IsException(method))
+ return -1;
+ sp[0] = method;
+ return 0;
+}
+
+/* enum_rec [objs] -> enum_rec [objs] value done. There are 'offset'
+ objs. If 'done' is true or in case of exception, 'enum_rec' is set
+ to undefined. If 'done' is true, 'value' is always set to
+ undefined. */
+static __exception int js_for_of_next(JSContext *ctx, JSValue *sp, int offset)
+{
+ JSValue value = JS_UNDEFINED;
+ int done = 1;
+
+ if (likely(!JS_IsUndefined(sp[offset]))) {
+ value = JS_IteratorNext(ctx, sp[offset], sp[offset + 1], 0, NULL, &done);
+ if (JS_IsException(value))
+ done = -1;
+ if (done) {
+ /* value is JS_UNDEFINED or JS_EXCEPTION */
+ /* replace the iteration object with undefined */
+ JS_FreeValue(ctx, sp[offset]);
+ sp[offset] = JS_UNDEFINED;
+ if (done < 0) {
+ return -1;
+ } else {
+ JS_FreeValue(ctx, value);
+ value = JS_UNDEFINED;
+ }
+ }
+ }
+ sp[0] = value;
+ sp[1] = JS_NewBool(ctx, done);
+ return 0;
+}
+
+static JSValue JS_IteratorGetCompleteValue(JSContext *ctx, JSValueConst obj,
+ BOOL *pdone)
+{
+ JSValue done_val, value;
+ BOOL done;
+ done_val = JS_GetProperty(ctx, obj, JS_ATOM_done);
+ if (JS_IsException(done_val))
+ goto fail;
+ done = JS_ToBoolFree(ctx, done_val);
+ value = JS_GetProperty(ctx, obj, JS_ATOM_value);
+ if (JS_IsException(value))
+ goto fail;
+ *pdone = done;
+ return value;
+ fail:
+ *pdone = FALSE;
+ return JS_EXCEPTION;
+}
+
+static __exception int js_iterator_get_value_done(JSContext *ctx, JSValue *sp)
+{
+ JSValue obj, value;
+ BOOL done;
+ obj = sp[-1];
+ if (!JS_IsObject(obj)) {
+ JS_ThrowTypeError(ctx, "iterator must return an object");
+ return -1;
+ }
+ value = JS_IteratorGetCompleteValue(ctx, obj, &done);
+ if (JS_IsException(value))
+ return -1;
+ JS_FreeValue(ctx, obj);
+ sp[-1] = value;
+ sp[0] = JS_NewBool(ctx, done);
+ return 0;
+}
+
+static JSValue js_create_iterator_result(JSContext *ctx,
+ JSValue val,
+ BOOL done)
+{
+ JSValue obj;
+ obj = JS_NewObject(ctx);
+ if (JS_IsException(obj)) {
+ JS_FreeValue(ctx, val);
+ return obj;
+ }
+ if (JS_DefinePropertyValue(ctx, obj, JS_ATOM_value,
+ val, JS_PROP_C_W_E) < 0) {
+ goto fail;
+ }
+ if (JS_DefinePropertyValue(ctx, obj, JS_ATOM_done,
+ JS_NewBool(ctx, done), JS_PROP_C_W_E) < 0) {
+ fail:
+ JS_FreeValue(ctx, obj);
+ return JS_EXCEPTION;
+ }
+ return obj;
+}
+
+static JSValue js_array_iterator_next(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv,
+ BOOL *pdone, int magic);
+
+static JSValue js_create_array_iterator(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int magic);
+
+static BOOL js_is_fast_array(JSContext *ctx, JSValueConst obj)
+{
+ /* Try and handle fast arrays explicitly */
+ if (JS_VALUE_GET_TAG(obj) == JS_TAG_OBJECT) {
+ JSObject *p = JS_VALUE_GET_OBJ(obj);
+ if (p->class_id == JS_CLASS_ARRAY && p->fast_array) {
+ return TRUE;
+ }
+ }
+ return FALSE;
+}
+
+/* Access an Array's internal JSValue array if available */
+static BOOL js_get_fast_array(JSContext *ctx, JSValueConst obj,
+ JSValue **arrpp, uint32_t *countp)
+{
+ /* Try and handle fast arrays explicitly */
+ if (JS_VALUE_GET_TAG(obj) == JS_TAG_OBJECT) {
+ JSObject *p = JS_VALUE_GET_OBJ(obj);
+ if (p->class_id == JS_CLASS_ARRAY && p->fast_array) {
+ *countp = p->u.array.count;
+ *arrpp = p->u.array.u.values;
+ return TRUE;
+ }
+ }
+ return FALSE;
+}
+
+static __exception int js_append_enumerate(JSContext *ctx, JSValue *sp)
+{
+ JSValue iterator, enumobj, method, value;
+ int is_array_iterator;
+ JSValue *arrp;
+ uint32_t i, count32, pos;
+
+ if (JS_VALUE_GET_TAG(sp[-2]) != JS_TAG_INT) {
+ JS_ThrowInternalError(ctx, "invalid index for append");
+ return -1;
+ }
+
+ pos = JS_VALUE_GET_INT(sp[-2]);
+
+ /* XXX: further optimisations:
+ - use ctx->array_proto_values?
+ - check if array_iterator_prototype next method is built-in and
+ avoid constructing actual iterator object?
+ - build this into js_for_of_start and use in all `for (x of o)` loops
+ */
+ iterator = JS_GetProperty(ctx, sp[-1], JS_ATOM_Symbol_iterator);
+ if (JS_IsException(iterator))
+ return -1;
+ is_array_iterator = JS_IsCFunction(ctx, iterator,
+ (JSCFunction *)js_create_array_iterator,
+ JS_ITERATOR_KIND_VALUE);
+ JS_FreeValue(ctx, iterator);
+
+ enumobj = JS_GetIterator(ctx, sp[-1], FALSE);
+ if (JS_IsException(enumobj))
+ return -1;
+ method = JS_GetProperty(ctx, enumobj, JS_ATOM_next);
+ if (JS_IsException(method)) {
+ JS_FreeValue(ctx, enumobj);
+ return -1;
+ }
+ if (is_array_iterator
+ && JS_IsCFunction(ctx, method, (JSCFunction *)js_array_iterator_next, 0)
+ && js_get_fast_array(ctx, sp[-1], &arrp, &count32)) {
+ uint32_t len;
+ if (js_get_length32(ctx, &len, sp[-1]))
+ goto exception;
+ /* if len > count32, the elements >= count32 might be read in
+ the prototypes and might have side effects */
+ if (len != count32)
+ goto general_case;
+ /* Handle fast arrays explicitly */
+ for (i = 0; i < count32; i++) {
+ if (JS_DefinePropertyValueUint32(ctx, sp[-3], pos++,
+ JS_DupValue(ctx, arrp[i]), JS_PROP_C_W_E) < 0)
+ goto exception;
+ }
+ } else {
+ general_case:
+ for (;;) {
+ BOOL done;
+ value = JS_IteratorNext(ctx, enumobj, method, 0, NULL, &done);
+ if (JS_IsException(value))
+ goto exception;
+ if (done) {
+ /* value is JS_UNDEFINED */
+ break;
+ }
+ if (JS_DefinePropertyValueUint32(ctx, sp[-3], pos++, value, JS_PROP_C_W_E) < 0)
+ goto exception;
+ }
+ }
+ /* Note: could raise an error if too many elements */
+ sp[-2] = JS_NewInt32(ctx, pos);
+ JS_FreeValue(ctx, enumobj);
+ JS_FreeValue(ctx, method);
+ return 0;
+
+exception:
+ JS_IteratorClose(ctx, enumobj, TRUE);
+ JS_FreeValue(ctx, enumobj);
+ JS_FreeValue(ctx, method);
+ return -1;
+}
+
+static __exception int JS_CopyDataProperties(JSContext *ctx,
+ JSValueConst target,
+ JSValueConst source,
+ JSValueConst excluded,
+ BOOL setprop)
+{
+ JSPropertyEnum *tab_atom;
+ JSValue val;
+ uint32_t i, tab_atom_count;
+ JSObject *p;
+ JSObject *pexcl = NULL;
+ int ret, gpn_flags;
+ JSPropertyDescriptor desc;
+ BOOL is_enumerable;
+
+ if (JS_VALUE_GET_TAG(source) != JS_TAG_OBJECT)
+ return 0;
+
+ if (JS_VALUE_GET_TAG(excluded) == JS_TAG_OBJECT)
+ pexcl = JS_VALUE_GET_OBJ(excluded);
+
+ p = JS_VALUE_GET_OBJ(source);
+
+ gpn_flags = JS_GPN_STRING_MASK | JS_GPN_SYMBOL_MASK | JS_GPN_ENUM_ONLY;
+ if (p->is_exotic) {
+ const JSClassExoticMethods *em = ctx->rt->class_array[p->class_id].exotic;
+ /* cannot use JS_GPN_ENUM_ONLY with e.g. proxies because it
+ introduces a visible change */
+ if (em && em->get_own_property_names) {
+ gpn_flags &= ~JS_GPN_ENUM_ONLY;
+ }
+ }
+ if (JS_GetOwnPropertyNamesInternal(ctx, &tab_atom, &tab_atom_count, p,
+ gpn_flags))
+ return -1;
+
+ for (i = 0; i < tab_atom_count; i++) {
+ if (pexcl) {
+ ret = JS_GetOwnPropertyInternal(ctx, NULL, pexcl, tab_atom[i].atom);
+ if (ret) {
+ if (ret < 0)
+ goto exception;
+ continue;
+ }
+ }
+ if (!(gpn_flags & JS_GPN_ENUM_ONLY)) {
+ /* test if the property is enumerable */
+ ret = JS_GetOwnPropertyInternal(ctx, &desc, p, tab_atom[i].atom);
+ if (ret < 0)
+ goto exception;
+ if (!ret)
+ continue;
+ is_enumerable = (desc.flags & JS_PROP_ENUMERABLE) != 0;
+ js_free_desc(ctx, &desc);
+ if (!is_enumerable)
+ continue;
+ }
+ val = JS_GetProperty(ctx, source, tab_atom[i].atom);
+ if (JS_IsException(val))
+ goto exception;
+ if (setprop)
+ ret = JS_SetProperty(ctx, target, tab_atom[i].atom, val);
+ else
+ ret = JS_DefinePropertyValue(ctx, target, tab_atom[i].atom, val,
+ JS_PROP_C_W_E);
+ if (ret < 0)
+ goto exception;
+ }
+ js_free_prop_enum(ctx, tab_atom, tab_atom_count);
+ return 0;
+ exception:
+ js_free_prop_enum(ctx, tab_atom, tab_atom_count);
+ return -1;
+}
+
+/* only valid inside C functions */
+static JSValueConst JS_GetActiveFunction(JSContext *ctx)
+{
+ return ctx->rt->current_stack_frame->cur_func;
+}
+
+static JSVarRef *get_var_ref(JSContext *ctx, JSStackFrame *sf,
+ int var_idx, BOOL is_arg)
+{
+ JSVarRef *var_ref;
+ struct list_head *el;
+
+ list_for_each(el, &sf->var_ref_list) {
+ var_ref = list_entry(el, JSVarRef, var_ref_link);
+ if (var_ref->var_idx == var_idx && var_ref->is_arg == is_arg) {
+ var_ref->header.ref_count++;
+ return var_ref;
+ }
+ }
+ /* create a new one */
+ var_ref = js_malloc(ctx, sizeof(JSVarRef));
+ if (!var_ref)
+ return NULL;
+ var_ref->header.ref_count = 1;
+ add_gc_object(ctx->rt, &var_ref->header, JS_GC_OBJ_TYPE_VAR_REF);
+ var_ref->is_detached = FALSE;
+ var_ref->is_arg = is_arg;
+ var_ref->var_idx = var_idx;
+ list_add_tail(&var_ref->var_ref_link, &sf->var_ref_list);
+ if (sf->js_mode & JS_MODE_ASYNC) {
+ /* The stack frame is detached and may be destroyed at any
+ time so its reference count must be increased. Calling
+ close_var_refs() when destroying the stack frame is not
+ possible because it would change the graph between the GC
+ objects. Another solution could be to temporarily detach
+ the JSVarRef of async functions during the GC. It would
+ have the advantage of allowing the release of unused stack
+ frames in a cycle. */
+ var_ref->async_func = container_of(sf, JSAsyncFunctionState, frame);
+ var_ref->async_func->header.ref_count++;
+ } else {
+ var_ref->async_func = NULL;
+ }
+ if (is_arg)
+ var_ref->pvalue = &sf->arg_buf[var_idx];
+ else
+ var_ref->pvalue = &sf->var_buf[var_idx];
+ return var_ref;
+}
+
+static JSValue js_closure2(JSContext *ctx, JSValue func_obj,
+ JSFunctionBytecode *b,
+ JSVarRef **cur_var_refs,
+ JSStackFrame *sf)
+{
+ JSObject *p;
+ JSVarRef **var_refs;
+ int i;
+
+ p = JS_VALUE_GET_OBJ(func_obj);
+ p->u.func.function_bytecode = b;
+ p->u.func.home_object = NULL;
+ p->u.func.var_refs = NULL;
+ if (b->closure_var_count) {
+ var_refs = js_mallocz(ctx, sizeof(var_refs[0]) * b->closure_var_count);
+ if (!var_refs)
+ goto fail;
+ p->u.func.var_refs = var_refs;
+ for(i = 0; i < b->closure_var_count; i++) {
+ JSClosureVar *cv = &b->closure_var[i];
+ JSVarRef *var_ref;
+ if (cv->is_local) {
+ /* reuse the existing variable reference if it already exists */
+ var_ref = get_var_ref(ctx, sf, cv->var_idx, cv->is_arg);
+ if (!var_ref)
+ goto fail;
+ } else {
+ var_ref = cur_var_refs[cv->var_idx];
+ var_ref->header.ref_count++;
+ }
+ var_refs[i] = var_ref;
+ }
+ }
+ return func_obj;
+ fail:
+ /* bfunc is freed when func_obj is freed */
+ JS_FreeValue(ctx, func_obj);
+ return JS_EXCEPTION;
+}
+
+static JSValue js_instantiate_prototype(JSContext *ctx, JSObject *p, JSAtom atom, void *opaque)
+{
+ JSValue obj, this_val;
+ int ret;
+
+ this_val = JS_MKPTR(JS_TAG_OBJECT, p);
+ obj = JS_NewObject(ctx);
+ if (JS_IsException(obj))
+ return JS_EXCEPTION;
+ set_cycle_flag(ctx, obj);
+ set_cycle_flag(ctx, this_val);
+ ret = JS_DefinePropertyValue(ctx, obj, JS_ATOM_constructor,
+ JS_DupValue(ctx, this_val),
+ JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE);
+ if (ret < 0) {
+ JS_FreeValue(ctx, obj);
+ return JS_EXCEPTION;
+ }
+ return obj;
+}
+
+static const uint16_t func_kind_to_class_id[] = {
+ [JS_FUNC_NORMAL] = JS_CLASS_BYTECODE_FUNCTION,
+ [JS_FUNC_GENERATOR] = JS_CLASS_GENERATOR_FUNCTION,
+ [JS_FUNC_ASYNC] = JS_CLASS_ASYNC_FUNCTION,
+ [JS_FUNC_ASYNC_GENERATOR] = JS_CLASS_ASYNC_GENERATOR_FUNCTION,
+};
+
+static JSValue js_closure(JSContext *ctx, JSValue bfunc,
+ JSVarRef **cur_var_refs,
+ JSStackFrame *sf)
+{
+ JSFunctionBytecode *b;
+ JSValue func_obj;
+ JSAtom name_atom;
+
+ b = JS_VALUE_GET_PTR(bfunc);
+ func_obj = JS_NewObjectClass(ctx, func_kind_to_class_id[b->func_kind]);
+ if (JS_IsException(func_obj)) {
+ JS_FreeValue(ctx, bfunc);
+ return JS_EXCEPTION;
+ }
+ func_obj = js_closure2(ctx, func_obj, b, cur_var_refs, sf);
+ if (JS_IsException(func_obj)) {
+ /* bfunc has been freed */
+ goto fail;
+ }
+ name_atom = b->func_name;
+ if (name_atom == JS_ATOM_NULL)
+ name_atom = JS_ATOM_empty_string;
+ js_function_set_properties(ctx, func_obj, name_atom,
+ b->defined_arg_count);
+
+ if (b->func_kind & JS_FUNC_GENERATOR) {
+ JSValue proto;
+ int proto_class_id;
+ /* generators have a prototype field which is used as
+ prototype for the generator object */
+ if (b->func_kind == JS_FUNC_ASYNC_GENERATOR)
+ proto_class_id = JS_CLASS_ASYNC_GENERATOR;
+ else
+ proto_class_id = JS_CLASS_GENERATOR;
+ proto = JS_NewObjectProto(ctx, ctx->class_proto[proto_class_id]);
+ if (JS_IsException(proto))
+ goto fail;
+ JS_DefinePropertyValue(ctx, func_obj, JS_ATOM_prototype, proto,
+ JS_PROP_WRITABLE);
+ } else if (b->has_prototype) {
+ /* add the 'prototype' property: delay instantiation to avoid
+ creating cycles for every javascript function. The prototype
+ object is created on the fly when first accessed */
+ JS_SetConstructorBit(ctx, func_obj, TRUE);
+ JS_DefineAutoInitProperty(ctx, func_obj, JS_ATOM_prototype,
+ JS_AUTOINIT_ID_PROTOTYPE, NULL,
+ JS_PROP_WRITABLE);
+ }
+ return func_obj;
+ fail:
+ /* bfunc is freed when func_obj is freed */
+ JS_FreeValue(ctx, func_obj);
+ return JS_EXCEPTION;
+}
+
+#define JS_DEFINE_CLASS_HAS_HERITAGE (1 << 0)
+
+static int js_op_define_class(JSContext *ctx, JSValue *sp,
+ JSAtom class_name, int class_flags,
+ JSVarRef **cur_var_refs,
+ JSStackFrame *sf, BOOL is_computed_name)
+{
+ JSValue bfunc, parent_class, proto = JS_UNDEFINED;
+ JSValue ctor = JS_UNDEFINED, parent_proto = JS_UNDEFINED;
+ JSFunctionBytecode *b;
+
+ parent_class = sp[-2];
+ bfunc = sp[-1];
+
+ if (class_flags & JS_DEFINE_CLASS_HAS_HERITAGE) {
+ if (JS_IsNull(parent_class)) {
+ parent_proto = JS_NULL;
+ parent_class = JS_DupValue(ctx, ctx->function_proto);
+ } else {
+ if (!JS_IsConstructor(ctx, parent_class)) {
+ JS_ThrowTypeError(ctx, "parent class must be constructor");
+ goto fail;
+ }
+ parent_proto = JS_GetProperty(ctx, parent_class, JS_ATOM_prototype);
+ if (JS_IsException(parent_proto))
+ goto fail;
+ if (!JS_IsNull(parent_proto) && !JS_IsObject(parent_proto)) {
+ JS_ThrowTypeError(ctx, "parent prototype must be an object or null");
+ goto fail;
+ }
+ }
+ } else {
+ /* parent_class is JS_UNDEFINED in this case */
+ parent_proto = JS_DupValue(ctx, ctx->class_proto[JS_CLASS_OBJECT]);
+ parent_class = JS_DupValue(ctx, ctx->function_proto);
+ }
+ proto = JS_NewObjectProto(ctx, parent_proto);
+ if (JS_IsException(proto))
+ goto fail;
+
+ b = JS_VALUE_GET_PTR(bfunc);
+ assert(b->func_kind == JS_FUNC_NORMAL);
+ ctor = JS_NewObjectProtoClass(ctx, parent_class,
+ JS_CLASS_BYTECODE_FUNCTION);
+ if (JS_IsException(ctor))
+ goto fail;
+ ctor = js_closure2(ctx, ctor, b, cur_var_refs, sf);
+ bfunc = JS_UNDEFINED;
+ if (JS_IsException(ctor))
+ goto fail;
+ js_method_set_home_object(ctx, ctor, proto);
+ JS_SetConstructorBit(ctx, ctor, TRUE);
+
+ JS_DefinePropertyValue(ctx, ctor, JS_ATOM_length,
+ JS_NewInt32(ctx, b->defined_arg_count),
+ JS_PROP_CONFIGURABLE);
+
+ if (is_computed_name) {
+ if (JS_DefineObjectNameComputed(ctx, ctor, sp[-3],
+ JS_PROP_CONFIGURABLE) < 0)
+ goto fail;
+ } else {
+ if (JS_DefineObjectName(ctx, ctor, class_name, JS_PROP_CONFIGURABLE) < 0)
+ goto fail;
+ }
+
+ /* the constructor property must be first. It can be overriden by
+ computed property names */
+ if (JS_DefinePropertyValue(ctx, proto, JS_ATOM_constructor,
+ JS_DupValue(ctx, ctor),
+ JS_PROP_CONFIGURABLE |
+ JS_PROP_WRITABLE | JS_PROP_THROW) < 0)
+ goto fail;
+ /* set the prototype property */
+ if (JS_DefinePropertyValue(ctx, ctor, JS_ATOM_prototype,
+ JS_DupValue(ctx, proto), JS_PROP_THROW) < 0)
+ goto fail;
+ set_cycle_flag(ctx, ctor);
+ set_cycle_flag(ctx, proto);
+
+ JS_FreeValue(ctx, parent_proto);
+ JS_FreeValue(ctx, parent_class);
+
+ sp[-2] = ctor;
+ sp[-1] = proto;
+ return 0;
+ fail:
+ JS_FreeValue(ctx, parent_class);
+ JS_FreeValue(ctx, parent_proto);
+ JS_FreeValue(ctx, bfunc);
+ JS_FreeValue(ctx, proto);
+ JS_FreeValue(ctx, ctor);
+ sp[-2] = JS_UNDEFINED;
+ sp[-1] = JS_UNDEFINED;
+ return -1;
+}
+
+static void close_var_refs(JSRuntime *rt, JSStackFrame *sf)
+{
+ struct list_head *el, *el1;
+ JSVarRef *var_ref;
+ int var_idx;
+
+ list_for_each_safe(el, el1, &sf->var_ref_list) {
+ var_ref = list_entry(el, JSVarRef, var_ref_link);
+ /* no need to unlink var_ref->var_ref_link as the list is never used afterwards */
+ if (var_ref->async_func)
+ async_func_free(rt, var_ref->async_func);
+ var_idx = var_ref->var_idx;
+ if (var_ref->is_arg)
+ var_ref->value = JS_DupValueRT(rt, sf->arg_buf[var_idx]);
+ else
+ var_ref->value = JS_DupValueRT(rt, sf->var_buf[var_idx]);
+ var_ref->pvalue = &var_ref->value;
+ /* the reference is no longer to a local variable */
+ var_ref->is_detached = TRUE;
+ }
+}
+
+static void close_lexical_var(JSContext *ctx, JSStackFrame *sf, int idx, int is_arg)
+{
+ struct list_head *el, *el1;
+ JSVarRef *var_ref;
+ int var_idx = idx;
+
+ list_for_each_safe(el, el1, &sf->var_ref_list) {
+ var_ref = list_entry(el, JSVarRef, var_ref_link);
+ if (var_idx == var_ref->var_idx && var_ref->is_arg == is_arg) {
+ list_del(&var_ref->var_ref_link);
+ if (var_ref->async_func)
+ async_func_free(ctx->rt, var_ref->async_func);
+ var_ref->value = JS_DupValue(ctx, sf->var_buf[var_idx]);
+ var_ref->pvalue = &var_ref->value;
+ /* the reference is no longer to a local variable */
+ var_ref->is_detached = TRUE;
+ }
+ }
+}
+
+#define JS_CALL_FLAG_COPY_ARGV (1 << 1)
+#define JS_CALL_FLAG_GENERATOR (1 << 2)
+
+static JSValue js_call_c_function(JSContext *ctx, JSValueConst func_obj,
+ JSValueConst this_obj,
+ int argc, JSValueConst *argv, int flags)
+{
+ JSRuntime *rt = ctx->rt;
+ JSCFunctionType func;
+ JSObject *p;
+ JSStackFrame sf_s, *sf = &sf_s, *prev_sf;
+ JSValue ret_val;
+ JSValueConst *arg_buf;
+ int arg_count, i;
+ JSCFunctionEnum cproto;
+
+ p = JS_VALUE_GET_OBJ(func_obj);
+ cproto = p->u.cfunc.cproto;
+ arg_count = p->u.cfunc.length;
+
+ /* better to always check stack overflow */
+ if (js_check_stack_overflow(rt, sizeof(arg_buf[0]) * arg_count))
+ return JS_ThrowStackOverflow(ctx);
+
+ prev_sf = rt->current_stack_frame;
+ sf->prev_frame = prev_sf;
+ rt->current_stack_frame = sf;
+ ctx = p->u.cfunc.realm; /* change the current realm */
+
+#ifdef CONFIG_BIGNUM
+ /* we only propagate the bignum mode as some runtime functions
+ test it */
+ if (prev_sf)
+ sf->js_mode = prev_sf->js_mode & JS_MODE_MATH;
+ else
+ sf->js_mode = 0;
+#else
+ sf->js_mode = 0;
+#endif
+ sf->cur_func = (JSValue)func_obj;
+ sf->arg_count = argc;
+ arg_buf = argv;
+
+ if (unlikely(argc < arg_count)) {
+ /* ensure that at least argc_count arguments are readable */
+ arg_buf = alloca(sizeof(arg_buf[0]) * arg_count);
+ for(i = 0; i < argc; i++)
+ arg_buf[i] = argv[i];
+ for(i = argc; i < arg_count; i++)
+ arg_buf[i] = JS_UNDEFINED;
+ sf->arg_count = arg_count;
+ }
+ sf->arg_buf = (JSValue*)arg_buf;
+
+ func = p->u.cfunc.c_function;
+ switch(cproto) {
+ case JS_CFUNC_constructor:
+ case JS_CFUNC_constructor_or_func:
+ if (!(flags & JS_CALL_FLAG_CONSTRUCTOR)) {
+ if (cproto == JS_CFUNC_constructor) {
+ not_a_constructor:
+ ret_val = JS_ThrowTypeError(ctx, "must be called with new");
+ break;
+ } else {
+ this_obj = JS_UNDEFINED;
+ }
+ }
+ /* here this_obj is new_target */
+ /* fall thru */
+ case JS_CFUNC_generic:
+ ret_val = func.generic(ctx, this_obj, argc, arg_buf);
+ break;
+ case JS_CFUNC_constructor_magic:
+ case JS_CFUNC_constructor_or_func_magic:
+ if (!(flags & JS_CALL_FLAG_CONSTRUCTOR)) {
+ if (cproto == JS_CFUNC_constructor_magic) {
+ goto not_a_constructor;
+ } else {
+ this_obj = JS_UNDEFINED;
+ }
+ }
+ /* fall thru */
+ case JS_CFUNC_generic_magic:
+ ret_val = func.generic_magic(ctx, this_obj, argc, arg_buf,
+ p->u.cfunc.magic);
+ break;
+ case JS_CFUNC_getter:
+ ret_val = func.getter(ctx, this_obj);
+ break;
+ case JS_CFUNC_setter:
+ ret_val = func.setter(ctx, this_obj, arg_buf[0]);
+ break;
+ case JS_CFUNC_getter_magic:
+ ret_val = func.getter_magic(ctx, this_obj, p->u.cfunc.magic);
+ break;
+ case JS_CFUNC_setter_magic:
+ ret_val = func.setter_magic(ctx, this_obj, arg_buf[0], p->u.cfunc.magic);
+ break;
+ case JS_CFUNC_f_f:
+ {
+ double d1;
+
+ if (unlikely(JS_ToFloat64(ctx, &d1, arg_buf[0]))) {
+ ret_val = JS_EXCEPTION;
+ break;
+ }
+ ret_val = JS_NewFloat64(ctx, func.f_f(d1));
+ }
+ break;
+ case JS_CFUNC_f_f_f:
+ {
+ double d1, d2;
+
+ if (unlikely(JS_ToFloat64(ctx, &d1, arg_buf[0]))) {
+ ret_val = JS_EXCEPTION;
+ break;
+ }
+ if (unlikely(JS_ToFloat64(ctx, &d2, arg_buf[1]))) {
+ ret_val = JS_EXCEPTION;
+ break;
+ }
+ ret_val = JS_NewFloat64(ctx, func.f_f_f(d1, d2));
+ }
+ break;
+ case JS_CFUNC_iterator_next:
+ {
+ int done;
+ ret_val = func.iterator_next(ctx, this_obj, argc, arg_buf,
+ &done, p->u.cfunc.magic);
+ if (!JS_IsException(ret_val) && done != 2) {
+ ret_val = js_create_iterator_result(ctx, ret_val, done);
+ }
+ }
+ break;
+ default:
+ abort();
+ }
+
+ rt->current_stack_frame = sf->prev_frame;
+ return ret_val;
+}
+
+static JSValue js_call_bound_function(JSContext *ctx, JSValueConst func_obj,
+ JSValueConst this_obj,
+ int argc, JSValueConst *argv, int flags)
+{
+ JSObject *p;
+ JSBoundFunction *bf;
+ JSValueConst *arg_buf, new_target;
+ int arg_count, i;
+
+ p = JS_VALUE_GET_OBJ(func_obj);
+ bf = p->u.bound_function;
+ arg_count = bf->argc + argc;
+ if (js_check_stack_overflow(ctx->rt, sizeof(JSValue) * arg_count))
+ return JS_ThrowStackOverflow(ctx);
+ arg_buf = alloca(sizeof(JSValue) * arg_count);
+ for(i = 0; i < bf->argc; i++) {
+ arg_buf[i] = bf->argv[i];
+ }
+ for(i = 0; i < argc; i++) {
+ arg_buf[bf->argc + i] = argv[i];
+ }
+ if (flags & JS_CALL_FLAG_CONSTRUCTOR) {
+ new_target = this_obj;
+ if (js_same_value(ctx, func_obj, new_target))
+ new_target = bf->func_obj;
+ return JS_CallConstructor2(ctx, bf->func_obj, new_target,
+ arg_count, arg_buf);
+ } else {
+ return JS_Call(ctx, bf->func_obj, bf->this_val,
+ arg_count, arg_buf);
+ }
+}
+
+/* argument of OP_special_object */
+typedef enum {
+ OP_SPECIAL_OBJECT_ARGUMENTS,
+ OP_SPECIAL_OBJECT_MAPPED_ARGUMENTS,
+ OP_SPECIAL_OBJECT_THIS_FUNC,
+ OP_SPECIAL_OBJECT_NEW_TARGET,
+ OP_SPECIAL_OBJECT_HOME_OBJECT,
+ OP_SPECIAL_OBJECT_VAR_OBJECT,
+ OP_SPECIAL_OBJECT_IMPORT_META,
+} OPSpecialObjectEnum;
+
+#define FUNC_RET_AWAIT 0
+#define FUNC_RET_YIELD 1
+#define FUNC_RET_YIELD_STAR 2
+#define FUNC_RET_INITIAL_YIELD 3
+
+/* argv[] is modified if (flags & JS_CALL_FLAG_COPY_ARGV) = 0. */
+static JSValue JS_CallInternal(JSContext *caller_ctx, JSValueConst func_obj,
+ JSValueConst this_obj, JSValueConst new_target,
+ int argc, JSValue *argv, int flags)
+{
+ JSRuntime *rt = caller_ctx->rt;
+ JSContext *ctx;
+ JSObject *p;
+ JSFunctionBytecode *b;
+ JSStackFrame sf_s, *sf = &sf_s;
+ const uint8_t *pc;
+ int opcode, arg_allocated_size, i;
+ JSValue *local_buf, *stack_buf, *var_buf, *arg_buf, *sp, ret_val, *pval;
+ JSVarRef **var_refs;
+ size_t alloca_size;
+
+#if !DIRECT_DISPATCH
+#define SWITCH(pc) switch (opcode = *pc++)
+#define CASE(op) case op
+#define DEFAULT default
+#define BREAK break
+#else
+ static const void * const dispatch_table[256] = {
+#define DEF(id, size, n_pop, n_push, f) && case_OP_ ## id,
+#if SHORT_OPCODES
+#define def(id, size, n_pop, n_push, f)
+#else
+#define def(id, size, n_pop, n_push, f) && case_default,
+#endif
+#include "quickjs-opcode.h"
+ [ OP_COUNT ... 255 ] = &&case_default
+ };
+#define SWITCH(pc) goto *dispatch_table[opcode = *pc++];
+#define CASE(op) case_ ## op
+#define DEFAULT case_default
+#define BREAK SWITCH(pc)
+#endif
+
+ if (js_poll_interrupts(caller_ctx))
+ return JS_EXCEPTION;
+ if (unlikely(JS_VALUE_GET_TAG(func_obj) != JS_TAG_OBJECT)) {
+ if (flags & JS_CALL_FLAG_GENERATOR) {
+ JSAsyncFunctionState *s = JS_VALUE_GET_PTR(func_obj);
+ /* func_obj get contains a pointer to JSFuncAsyncState */
+ /* the stack frame is already allocated */
+ sf = &s->frame;
+ p = JS_VALUE_GET_OBJ(sf->cur_func);
+ b = p->u.func.function_bytecode;
+ ctx = b->realm;
+ var_refs = p->u.func.var_refs;
+ local_buf = arg_buf = sf->arg_buf;
+ var_buf = sf->var_buf;
+ stack_buf = sf->var_buf + b->var_count;
+ sp = sf->cur_sp;
+ sf->cur_sp = NULL; /* cur_sp is NULL if the function is running */
+ pc = sf->cur_pc;
+ sf->prev_frame = rt->current_stack_frame;
+ rt->current_stack_frame = sf;
+ if (s->throw_flag)
+ goto exception;
+ else
+ goto restart;
+ } else {
+ goto not_a_function;
+ }
+ }
+ p = JS_VALUE_GET_OBJ(func_obj);
+ if (unlikely(p->class_id != JS_CLASS_BYTECODE_FUNCTION)) {
+ JSClassCall *call_func;
+ call_func = rt->class_array[p->class_id].call;
+ if (!call_func) {
+ not_a_function:
+ return JS_ThrowTypeError(caller_ctx, "not a function");
+ }
+ return call_func(caller_ctx, func_obj, this_obj, argc,
+ (JSValueConst *)argv, flags);
+ }
+ b = p->u.func.function_bytecode;
+
+ if (unlikely(argc < b->arg_count || (flags & JS_CALL_FLAG_COPY_ARGV))) {
+ arg_allocated_size = b->arg_count;
+ } else {
+ arg_allocated_size = 0;
+ }
+
+ alloca_size = sizeof(JSValue) * (arg_allocated_size + b->var_count +
+ b->stack_size);
+ if (js_check_stack_overflow(rt, alloca_size))
+ return JS_ThrowStackOverflow(caller_ctx);
+
+ sf->js_mode = b->js_mode;
+ arg_buf = argv;
+ sf->arg_count = argc;
+ sf->cur_func = (JSValue)func_obj;
+ init_list_head(&sf->var_ref_list);
+ var_refs = p->u.func.var_refs;
+
+ local_buf = alloca(alloca_size);
+ if (unlikely(arg_allocated_size)) {
+ int n = min_int(argc, b->arg_count);
+ arg_buf = local_buf;
+ for(i = 0; i < n; i++)
+ arg_buf[i] = JS_DupValue(caller_ctx, argv[i]);
+ for(; i < b->arg_count; i++)
+ arg_buf[i] = JS_UNDEFINED;
+ sf->arg_count = b->arg_count;
+ }
+ var_buf = local_buf + arg_allocated_size;
+ sf->var_buf = var_buf;
+ sf->arg_buf = arg_buf;
+
+ for(i = 0; i < b->var_count; i++)
+ var_buf[i] = JS_UNDEFINED;
+
+ stack_buf = var_buf + b->var_count;
+ sp = stack_buf;
+ pc = b->byte_code_buf;
+ sf->prev_frame = rt->current_stack_frame;
+ rt->current_stack_frame = sf;
+ ctx = b->realm; /* set the current realm */
+
+ restart:
+ for(;;) {
+ int call_argc;
+ JSValue *call_argv;
+
+ SWITCH(pc) {
+ CASE(OP_push_i32):
+ *sp++ = JS_NewInt32(ctx, get_u32(pc));
+ pc += 4;
+ BREAK;
+ CASE(OP_push_const):
+ *sp++ = JS_DupValue(ctx, b->cpool[get_u32(pc)]);
+ pc += 4;
+ BREAK;
+#if SHORT_OPCODES
+ CASE(OP_push_minus1):
+ CASE(OP_push_0):
+ CASE(OP_push_1):
+ CASE(OP_push_2):
+ CASE(OP_push_3):
+ CASE(OP_push_4):
+ CASE(OP_push_5):
+ CASE(OP_push_6):
+ CASE(OP_push_7):
+ *sp++ = JS_NewInt32(ctx, opcode - OP_push_0);
+ BREAK;
+ CASE(OP_push_i8):
+ *sp++ = JS_NewInt32(ctx, get_i8(pc));
+ pc += 1;
+ BREAK;
+ CASE(OP_push_i16):
+ *sp++ = JS_NewInt32(ctx, get_i16(pc));
+ pc += 2;
+ BREAK;
+ CASE(OP_push_const8):
+ *sp++ = JS_DupValue(ctx, b->cpool[*pc++]);
+ BREAK;
+ CASE(OP_fclosure8):
+ *sp++ = js_closure(ctx, JS_DupValue(ctx, b->cpool[*pc++]), var_refs, sf);
+ if (unlikely(JS_IsException(sp[-1])))
+ goto exception;
+ BREAK;
+ CASE(OP_push_empty_string):
+ *sp++ = JS_AtomToString(ctx, JS_ATOM_empty_string);
+ BREAK;
+ CASE(OP_get_length):
+ {
+ JSValue val;
+
+ val = JS_GetProperty(ctx, sp[-1], JS_ATOM_length);
+ if (unlikely(JS_IsException(val)))
+ goto exception;
+ JS_FreeValue(ctx, sp[-1]);
+ sp[-1] = val;
+ }
+ BREAK;
+#endif
+ CASE(OP_push_atom_value):
+ *sp++ = JS_AtomToValue(ctx, get_u32(pc));
+ pc += 4;
+ BREAK;
+ CASE(OP_undefined):
+ *sp++ = JS_UNDEFINED;
+ BREAK;
+ CASE(OP_null):
+ *sp++ = JS_NULL;
+ BREAK;
+ CASE(OP_push_this):
+ /* OP_push_this is only called at the start of a function */
+ {
+ JSValue val;
+ if (!(b->js_mode & JS_MODE_STRICT)) {
+ uint32_t tag = JS_VALUE_GET_TAG(this_obj);
+ if (likely(tag == JS_TAG_OBJECT))
+ goto normal_this;
+ if (tag == JS_TAG_NULL || tag == JS_TAG_UNDEFINED) {
+ val = JS_DupValue(ctx, ctx->global_obj);
+ } else {
+ val = JS_ToObject(ctx, this_obj);
+ if (JS_IsException(val))
+ goto exception;
+ }
+ } else {
+ normal_this:
+ val = JS_DupValue(ctx, this_obj);
+ }
+ *sp++ = val;
+ }
+ BREAK;
+ CASE(OP_push_false):
+ *sp++ = JS_FALSE;
+ BREAK;
+ CASE(OP_push_true):
+ *sp++ = JS_TRUE;
+ BREAK;
+ CASE(OP_object):
+ *sp++ = JS_NewObject(ctx);
+ if (unlikely(JS_IsException(sp[-1])))
+ goto exception;
+ BREAK;
+ CASE(OP_special_object):
+ {
+ int arg = *pc++;
+ switch(arg) {
+ case OP_SPECIAL_OBJECT_ARGUMENTS:
+ *sp++ = js_build_arguments(ctx, argc, (JSValueConst *)argv);
+ if (unlikely(JS_IsException(sp[-1])))
+ goto exception;
+ break;
+ case OP_SPECIAL_OBJECT_MAPPED_ARGUMENTS:
+ *sp++ = js_build_mapped_arguments(ctx, argc, (JSValueConst *)argv,
+ sf, min_int(argc, b->arg_count));
+ if (unlikely(JS_IsException(sp[-1])))
+ goto exception;
+ break;
+ case OP_SPECIAL_OBJECT_THIS_FUNC:
+ *sp++ = JS_DupValue(ctx, sf->cur_func);
+ break;
+ case OP_SPECIAL_OBJECT_NEW_TARGET:
+ *sp++ = JS_DupValue(ctx, new_target);
+ break;
+ case OP_SPECIAL_OBJECT_HOME_OBJECT:
+ {
+ JSObject *p1;
+ p1 = p->u.func.home_object;
+ if (unlikely(!p1))
+ *sp++ = JS_UNDEFINED;
+ else
+ *sp++ = JS_DupValue(ctx, JS_MKPTR(JS_TAG_OBJECT, p1));
+ }
+ break;
+ case OP_SPECIAL_OBJECT_VAR_OBJECT:
+ *sp++ = JS_NewObjectProto(ctx, JS_NULL);
+ if (unlikely(JS_IsException(sp[-1])))
+ goto exception;
+ break;
+ case OP_SPECIAL_OBJECT_IMPORT_META:
+ *sp++ = js_import_meta(ctx);
+ if (unlikely(JS_IsException(sp[-1])))
+ goto exception;
+ break;
+ default:
+ abort();
+ }
+ }
+ BREAK;
+ CASE(OP_rest):
+ {
+ int first = get_u16(pc);
+ pc += 2;
+ *sp++ = js_build_rest(ctx, first, argc, (JSValueConst *)argv);
+ if (unlikely(JS_IsException(sp[-1])))
+ goto exception;
+ }
+ BREAK;
+
+ CASE(OP_drop):
+ JS_FreeValue(ctx, sp[-1]);
+ sp--;
+ BREAK;
+ CASE(OP_nip):
+ JS_FreeValue(ctx, sp[-2]);
+ sp[-2] = sp[-1];
+ sp--;
+ BREAK;
+ CASE(OP_nip1): /* a b c -> b c */
+ JS_FreeValue(ctx, sp[-3]);
+ sp[-3] = sp[-2];
+ sp[-2] = sp[-1];
+ sp--;
+ BREAK;
+ CASE(OP_dup):
+ sp[0] = JS_DupValue(ctx, sp[-1]);
+ sp++;
+ BREAK;
+ CASE(OP_dup2): /* a b -> a b a b */
+ sp[0] = JS_DupValue(ctx, sp[-2]);
+ sp[1] = JS_DupValue(ctx, sp[-1]);
+ sp += 2;
+ BREAK;
+ CASE(OP_dup3): /* a b c -> a b c a b c */
+ sp[0] = JS_DupValue(ctx, sp[-3]);
+ sp[1] = JS_DupValue(ctx, sp[-2]);
+ sp[2] = JS_DupValue(ctx, sp[-1]);
+ sp += 3;
+ BREAK;
+ CASE(OP_dup1): /* a b -> a a b */
+ sp[0] = sp[-1];
+ sp[-1] = JS_DupValue(ctx, sp[-2]);
+ sp++;
+ BREAK;
+ CASE(OP_insert2): /* obj a -> a obj a (dup_x1) */
+ sp[0] = sp[-1];
+ sp[-1] = sp[-2];
+ sp[-2] = JS_DupValue(ctx, sp[0]);
+ sp++;
+ BREAK;
+ CASE(OP_insert3): /* obj prop a -> a obj prop a (dup_x2) */
+ sp[0] = sp[-1];
+ sp[-1] = sp[-2];
+ sp[-2] = sp[-3];
+ sp[-3] = JS_DupValue(ctx, sp[0]);
+ sp++;
+ BREAK;
+ CASE(OP_insert4): /* this obj prop a -> a this obj prop a */
+ sp[0] = sp[-1];
+ sp[-1] = sp[-2];
+ sp[-2] = sp[-3];
+ sp[-3] = sp[-4];
+ sp[-4] = JS_DupValue(ctx, sp[0]);
+ sp++;
+ BREAK;
+ CASE(OP_perm3): /* obj a b -> a obj b (213) */
+ {
+ JSValue tmp;
+ tmp = sp[-2];
+ sp[-2] = sp[-3];
+ sp[-3] = tmp;
+ }
+ BREAK;
+ CASE(OP_rot3l): /* x a b -> a b x (231) */
+ {
+ JSValue tmp;
+ tmp = sp[-3];
+ sp[-3] = sp[-2];
+ sp[-2] = sp[-1];
+ sp[-1] = tmp;
+ }
+ BREAK;
+ CASE(OP_rot4l): /* x a b c -> a b c x */
+ {
+ JSValue tmp;
+ tmp = sp[-4];
+ sp[-4] = sp[-3];
+ sp[-3] = sp[-2];
+ sp[-2] = sp[-1];
+ sp[-1] = tmp;
+ }
+ BREAK;
+ CASE(OP_rot5l): /* x a b c d -> a b c d x */
+ {
+ JSValue tmp;
+ tmp = sp[-5];
+ sp[-5] = sp[-4];
+ sp[-4] = sp[-3];
+ sp[-3] = sp[-2];
+ sp[-2] = sp[-1];
+ sp[-1] = tmp;
+ }
+ BREAK;
+ CASE(OP_rot3r): /* a b x -> x a b (312) */
+ {
+ JSValue tmp;
+ tmp = sp[-1];
+ sp[-1] = sp[-2];
+ sp[-2] = sp[-3];
+ sp[-3] = tmp;
+ }
+ BREAK;
+ CASE(OP_perm4): /* obj prop a b -> a obj prop b */
+ {
+ JSValue tmp;
+ tmp = sp[-2];
+ sp[-2] = sp[-3];
+ sp[-3] = sp[-4];
+ sp[-4] = tmp;
+ }
+ BREAK;
+ CASE(OP_perm5): /* this obj prop a b -> a this obj prop b */
+ {
+ JSValue tmp;
+ tmp = sp[-2];
+ sp[-2] = sp[-3];
+ sp[-3] = sp[-4];
+ sp[-4] = sp[-5];
+ sp[-5] = tmp;
+ }
+ BREAK;
+ CASE(OP_swap): /* a b -> b a */
+ {
+ JSValue tmp;
+ tmp = sp[-2];
+ sp[-2] = sp[-1];
+ sp[-1] = tmp;
+ }
+ BREAK;
+ CASE(OP_swap2): /* a b c d -> c d a b */
+ {
+ JSValue tmp1, tmp2;
+ tmp1 = sp[-4];
+ tmp2 = sp[-3];
+ sp[-4] = sp[-2];
+ sp[-3] = sp[-1];
+ sp[-2] = tmp1;
+ sp[-1] = tmp2;
+ }
+ BREAK;
+
+ CASE(OP_fclosure):
+ {
+ JSValue bfunc = JS_DupValue(ctx, b->cpool[get_u32(pc)]);
+ pc += 4;
+ *sp++ = js_closure(ctx, bfunc, var_refs, sf);
+ if (unlikely(JS_IsException(sp[-1])))
+ goto exception;
+ }
+ BREAK;
+#if SHORT_OPCODES
+ CASE(OP_call0):
+ CASE(OP_call1):
+ CASE(OP_call2):
+ CASE(OP_call3):
+ call_argc = opcode - OP_call0;
+ goto has_call_argc;
+#endif
+ CASE(OP_call):
+ CASE(OP_tail_call):
+ {
+ call_argc = get_u16(pc);
+ pc += 2;
+ goto has_call_argc;
+ has_call_argc:
+ call_argv = sp - call_argc;
+ sf->cur_pc = pc;
+ ret_val = JS_CallInternal(ctx, call_argv[-1], JS_UNDEFINED,
+ JS_UNDEFINED, call_argc, call_argv, 0);
+ if (unlikely(JS_IsException(ret_val)))
+ goto exception;
+ if (opcode == OP_tail_call)
+ goto done;
+ for(i = -1; i < call_argc; i++)
+ JS_FreeValue(ctx, call_argv[i]);
+ sp -= call_argc + 1;
+ *sp++ = ret_val;
+ }
+ BREAK;
+ CASE(OP_call_constructor):
+ {
+ call_argc = get_u16(pc);
+ pc += 2;
+ call_argv = sp - call_argc;
+ sf->cur_pc = pc;
+ ret_val = JS_CallConstructorInternal(ctx, call_argv[-2],
+ call_argv[-1],
+ call_argc, call_argv, 0);
+ if (unlikely(JS_IsException(ret_val)))
+ goto exception;
+ for(i = -2; i < call_argc; i++)
+ JS_FreeValue(ctx, call_argv[i]);
+ sp -= call_argc + 2;
+ *sp++ = ret_val;
+ }
+ BREAK;
+ CASE(OP_call_method):
+ CASE(OP_tail_call_method):
+ {
+ call_argc = get_u16(pc);
+ pc += 2;
+ call_argv = sp - call_argc;
+ sf->cur_pc = pc;
+ ret_val = JS_CallInternal(ctx, call_argv[-1], call_argv[-2],
+ JS_UNDEFINED, call_argc, call_argv, 0);
+ if (unlikely(JS_IsException(ret_val)))
+ goto exception;
+ if (opcode == OP_tail_call_method)
+ goto done;
+ for(i = -2; i < call_argc; i++)
+ JS_FreeValue(ctx, call_argv[i]);
+ sp -= call_argc + 2;
+ *sp++ = ret_val;
+ }
+ BREAK;
+ CASE(OP_array_from):
+ {
+ int i, ret;
+
+ call_argc = get_u16(pc);
+ pc += 2;
+ ret_val = JS_NewArray(ctx);
+ if (unlikely(JS_IsException(ret_val)))
+ goto exception;
+ call_argv = sp - call_argc;
+ for(i = 0; i < call_argc; i++) {
+ ret = JS_DefinePropertyValue(ctx, ret_val, __JS_AtomFromUInt32(i), call_argv[i],
+ JS_PROP_C_W_E | JS_PROP_THROW);
+ call_argv[i] = JS_UNDEFINED;
+ if (ret < 0) {
+ JS_FreeValue(ctx, ret_val);
+ goto exception;
+ }
+ }
+ sp -= call_argc;
+ *sp++ = ret_val;
+ }
+ BREAK;
+
+ CASE(OP_apply):
+ {
+ int magic;
+ magic = get_u16(pc);
+ pc += 2;
+
+ ret_val = js_function_apply(ctx, sp[-3], 2, (JSValueConst *)&sp[-2], magic);
+ if (unlikely(JS_IsException(ret_val)))
+ goto exception;
+ JS_FreeValue(ctx, sp[-3]);
+ JS_FreeValue(ctx, sp[-2]);
+ JS_FreeValue(ctx, sp[-1]);
+ sp -= 3;
+ *sp++ = ret_val;
+ }
+ BREAK;
+ CASE(OP_return):
+ ret_val = *--sp;
+ goto done;
+ CASE(OP_return_undef):
+ ret_val = JS_UNDEFINED;
+ goto done;
+
+ CASE(OP_check_ctor_return):
+ /* return TRUE if 'this' should be returned */
+ if (!JS_IsObject(sp[-1])) {
+ if (!JS_IsUndefined(sp[-1])) {
+ JS_ThrowTypeError(caller_ctx, "derived class constructor must return an object or undefined");
+ goto exception;
+ }
+ sp[0] = JS_TRUE;
+ } else {
+ sp[0] = JS_FALSE;
+ }
+ sp++;
+ BREAK;
+ CASE(OP_check_ctor):
+ if (JS_IsUndefined(new_target)) {
+ JS_ThrowTypeError(ctx, "class constructors must be invoked with 'new'");
+ goto exception;
+ }
+ BREAK;
+ CASE(OP_check_brand):
+ {
+ int ret = JS_CheckBrand(ctx, sp[-2], sp[-1]);
+ if (ret < 0)
+ goto exception;
+ if (!ret) {
+ JS_ThrowTypeError(ctx, "invalid brand on object");
+ goto exception;
+ }
+ }
+ BREAK;
+ CASE(OP_add_brand):
+ if (JS_AddBrand(ctx, sp[-2], sp[-1]) < 0)
+ goto exception;
+ JS_FreeValue(ctx, sp[-2]);
+ JS_FreeValue(ctx, sp[-1]);
+ sp -= 2;
+ BREAK;
+
+ CASE(OP_throw):
+ JS_Throw(ctx, *--sp);
+ goto exception;
+
+ CASE(OP_throw_error):
+#define JS_THROW_VAR_RO 0
+#define JS_THROW_VAR_REDECL 1
+#define JS_THROW_VAR_UNINITIALIZED 2
+#define JS_THROW_ERROR_DELETE_SUPER 3
+#define JS_THROW_ERROR_ITERATOR_THROW 4
+ {
+ JSAtom atom;
+ int type;
+ atom = get_u32(pc);
+ type = pc[4];
+ pc += 5;
+ if (type == JS_THROW_VAR_RO)
+ JS_ThrowTypeErrorReadOnly(ctx, JS_PROP_THROW, atom);
+ else
+ if (type == JS_THROW_VAR_REDECL)
+ JS_ThrowSyntaxErrorVarRedeclaration(ctx, atom);
+ else
+ if (type == JS_THROW_VAR_UNINITIALIZED)
+ JS_ThrowReferenceErrorUninitialized(ctx, atom);
+ else
+ if (type == JS_THROW_ERROR_DELETE_SUPER)
+ JS_ThrowReferenceError(ctx, "unsupported reference to 'super'");
+ else
+ if (type == JS_THROW_ERROR_ITERATOR_THROW)
+ JS_ThrowTypeError(ctx, "iterator does not have a throw method");
+ else
+ JS_ThrowInternalError(ctx, "invalid throw var type %d", type);
+ }
+ goto exception;
+
+ CASE(OP_eval):
+ {
+ JSValueConst obj;
+ int scope_idx;
+ call_argc = get_u16(pc);
+ scope_idx = get_u16(pc + 2) - 1;
+ pc += 4;
+ call_argv = sp - call_argc;
+ sf->cur_pc = pc;
+ if (js_same_value(ctx, call_argv[-1], ctx->eval_obj)) {
+ if (call_argc >= 1)
+ obj = call_argv[0];
+ else
+ obj = JS_UNDEFINED;
+ ret_val = JS_EvalObject(ctx, JS_UNDEFINED, obj,
+ JS_EVAL_TYPE_DIRECT, scope_idx);
+ } else {
+ ret_val = JS_CallInternal(ctx, call_argv[-1], JS_UNDEFINED,
+ JS_UNDEFINED, call_argc, call_argv, 0);
+ }
+ if (unlikely(JS_IsException(ret_val)))
+ goto exception;
+ for(i = -1; i < call_argc; i++)
+ JS_FreeValue(ctx, call_argv[i]);
+ sp -= call_argc + 1;
+ *sp++ = ret_val;
+ }
+ BREAK;
+ /* could merge with OP_apply */
+ CASE(OP_apply_eval):
+ {
+ int scope_idx;
+ uint32_t len;
+ JSValue *tab;
+ JSValueConst obj;
+
+ scope_idx = get_u16(pc) - 1;
+ pc += 2;
+ tab = build_arg_list(ctx, &len, sp[-1]);
+ if (!tab)
+ goto exception;
+ if (js_same_value(ctx, sp[-2], ctx->eval_obj)) {
+ if (len >= 1)
+ obj = tab[0];
+ else
+ obj = JS_UNDEFINED;
+ ret_val = JS_EvalObject(ctx, JS_UNDEFINED, obj,
+ JS_EVAL_TYPE_DIRECT, scope_idx);
+ } else {
+ ret_val = JS_Call(ctx, sp[-2], JS_UNDEFINED, len,
+ (JSValueConst *)tab);
+ }
+ free_arg_list(ctx, tab, len);
+ if (unlikely(JS_IsException(ret_val)))
+ goto exception;
+ JS_FreeValue(ctx, sp[-2]);
+ JS_FreeValue(ctx, sp[-1]);
+ sp -= 2;
+ *sp++ = ret_val;
+ }
+ BREAK;
+
+ CASE(OP_regexp):
+ {
+ sp[-2] = js_regexp_constructor_internal(ctx, JS_UNDEFINED,
+ sp[-2], sp[-1]);
+ sp--;
+ }
+ BREAK;
+
+ CASE(OP_get_super):
+ {
+ JSValue proto;
+ proto = JS_GetPrototype(ctx, sp[-1]);
+ if (JS_IsException(proto))
+ goto exception;
+ JS_FreeValue(ctx, sp[-1]);
+ sp[-1] = proto;
+ }
+ BREAK;
+
+ CASE(OP_import):
+ {
+ JSValue val;
+ val = js_dynamic_import(ctx, sp[-1]);
+ if (JS_IsException(val))
+ goto exception;
+ JS_FreeValue(ctx, sp[-1]);
+ sp[-1] = val;
+ }
+ BREAK;
+
+ CASE(OP_check_var):
+ {
+ int ret;
+ JSAtom atom;
+ atom = get_u32(pc);
+ pc += 4;
+
+ ret = JS_CheckGlobalVar(ctx, atom);
+ if (ret < 0)
+ goto exception;
+ *sp++ = JS_NewBool(ctx, ret);
+ }
+ BREAK;
+
+ CASE(OP_get_var_undef):
+ CASE(OP_get_var):
+ {
+ JSValue val;
+ JSAtom atom;
+ atom = get_u32(pc);
+ pc += 4;
+
+ val = JS_GetGlobalVar(ctx, atom, opcode - OP_get_var_undef);
+ if (unlikely(JS_IsException(val)))
+ goto exception;
+ *sp++ = val;
+ }
+ BREAK;
+
+ CASE(OP_put_var):
+ CASE(OP_put_var_init):
+ {
+ int ret;
+ JSAtom atom;
+ atom = get_u32(pc);
+ pc += 4;
+
+ ret = JS_SetGlobalVar(ctx, atom, sp[-1], opcode - OP_put_var);
+ sp--;
+ if (unlikely(ret < 0))
+ goto exception;
+ }
+ BREAK;
+
+ CASE(OP_put_var_strict):
+ {
+ int ret;
+ JSAtom atom;
+ atom = get_u32(pc);
+ pc += 4;
+
+ /* sp[-2] is JS_TRUE or JS_FALSE */
+ if (unlikely(!JS_VALUE_GET_INT(sp[-2]))) {
+ JS_ThrowReferenceErrorNotDefined(ctx, atom);
+ goto exception;
+ }
+ ret = JS_SetGlobalVar(ctx, atom, sp[-1], 2);
+ sp -= 2;
+ if (unlikely(ret < 0))
+ goto exception;
+ }
+ BREAK;
+
+ CASE(OP_check_define_var):
+ {
+ JSAtom atom;
+ int flags;
+ atom = get_u32(pc);
+ flags = pc[4];
+ pc += 5;
+ if (JS_CheckDefineGlobalVar(ctx, atom, flags))
+ goto exception;
+ }
+ BREAK;
+ CASE(OP_define_var):
+ {
+ JSAtom atom;
+ int flags;
+ atom = get_u32(pc);
+ flags = pc[4];
+ pc += 5;
+ if (JS_DefineGlobalVar(ctx, atom, flags))
+ goto exception;
+ }
+ BREAK;
+ CASE(OP_define_func):
+ {
+ JSAtom atom;
+ int flags;
+ atom = get_u32(pc);
+ flags = pc[4];
+ pc += 5;
+ if (JS_DefineGlobalFunction(ctx, atom, sp[-1], flags))
+ goto exception;
+ JS_FreeValue(ctx, sp[-1]);
+ sp--;
+ }
+ BREAK;
+
+ CASE(OP_get_loc):
+ {
+ int idx;
+ idx = get_u16(pc);
+ pc += 2;
+ sp[0] = JS_DupValue(ctx, var_buf[idx]);
+ sp++;
+ }
+ BREAK;
+ CASE(OP_put_loc):
+ {
+ int idx;
+ idx = get_u16(pc);
+ pc += 2;
+ set_value(ctx, &var_buf[idx], sp[-1]);
+ sp--;
+ }
+ BREAK;
+ CASE(OP_set_loc):
+ {
+ int idx;
+ idx = get_u16(pc);
+ pc += 2;
+ set_value(ctx, &var_buf[idx], JS_DupValue(ctx, sp[-1]));
+ }
+ BREAK;
+ CASE(OP_get_arg):
+ {
+ int idx;
+ idx = get_u16(pc);
+ pc += 2;
+ sp[0] = JS_DupValue(ctx, arg_buf[idx]);
+ sp++;
+ }
+ BREAK;
+ CASE(OP_put_arg):
+ {
+ int idx;
+ idx = get_u16(pc);
+ pc += 2;
+ set_value(ctx, &arg_buf[idx], sp[-1]);
+ sp--;
+ }
+ BREAK;
+ CASE(OP_set_arg):
+ {
+ int idx;
+ idx = get_u16(pc);
+ pc += 2;
+ set_value(ctx, &arg_buf[idx], JS_DupValue(ctx, sp[-1]));
+ }
+ BREAK;
+
+#if SHORT_OPCODES
+ CASE(OP_get_loc8): *sp++ = JS_DupValue(ctx, var_buf[*pc++]); BREAK;
+ CASE(OP_put_loc8): set_value(ctx, &var_buf[*pc++], *--sp); BREAK;
+ CASE(OP_set_loc8): set_value(ctx, &var_buf[*pc++], JS_DupValue(ctx, sp[-1])); BREAK;
+
+ CASE(OP_get_loc0): *sp++ = JS_DupValue(ctx, var_buf[0]); BREAK;
+ CASE(OP_get_loc1): *sp++ = JS_DupValue(ctx, var_buf[1]); BREAK;
+ CASE(OP_get_loc2): *sp++ = JS_DupValue(ctx, var_buf[2]); BREAK;
+ CASE(OP_get_loc3): *sp++ = JS_DupValue(ctx, var_buf[3]); BREAK;
+ CASE(OP_put_loc0): set_value(ctx, &var_buf[0], *--sp); BREAK;
+ CASE(OP_put_loc1): set_value(ctx, &var_buf[1], *--sp); BREAK;
+ CASE(OP_put_loc2): set_value(ctx, &var_buf[2], *--sp); BREAK;
+ CASE(OP_put_loc3): set_value(ctx, &var_buf[3], *--sp); BREAK;
+ CASE(OP_set_loc0): set_value(ctx, &var_buf[0], JS_DupValue(ctx, sp[-1])); BREAK;
+ CASE(OP_set_loc1): set_value(ctx, &var_buf[1], JS_DupValue(ctx, sp[-1])); BREAK;
+ CASE(OP_set_loc2): set_value(ctx, &var_buf[2], JS_DupValue(ctx, sp[-1])); BREAK;
+ CASE(OP_set_loc3): set_value(ctx, &var_buf[3], JS_DupValue(ctx, sp[-1])); BREAK;
+ CASE(OP_get_arg0): *sp++ = JS_DupValue(ctx, arg_buf[0]); BREAK;
+ CASE(OP_get_arg1): *sp++ = JS_DupValue(ctx, arg_buf[1]); BREAK;
+ CASE(OP_get_arg2): *sp++ = JS_DupValue(ctx, arg_buf[2]); BREAK;
+ CASE(OP_get_arg3): *sp++ = JS_DupValue(ctx, arg_buf[3]); BREAK;
+ CASE(OP_put_arg0): set_value(ctx, &arg_buf[0], *--sp); BREAK;
+ CASE(OP_put_arg1): set_value(ctx, &arg_buf[1], *--sp); BREAK;
+ CASE(OP_put_arg2): set_value(ctx, &arg_buf[2], *--sp); BREAK;
+ CASE(OP_put_arg3): set_value(ctx, &arg_buf[3], *--sp); BREAK;
+ CASE(OP_set_arg0): set_value(ctx, &arg_buf[0], JS_DupValue(ctx, sp[-1])); BREAK;
+ CASE(OP_set_arg1): set_value(ctx, &arg_buf[1], JS_DupValue(ctx, sp[-1])); BREAK;
+ CASE(OP_set_arg2): set_value(ctx, &arg_buf[2], JS_DupValue(ctx, sp[-1])); BREAK;
+ CASE(OP_set_arg3): set_value(ctx, &arg_buf[3], JS_DupValue(ctx, sp[-1])); BREAK;
+ CASE(OP_get_var_ref0): *sp++ = JS_DupValue(ctx, *var_refs[0]->pvalue); BREAK;
+ CASE(OP_get_var_ref1): *sp++ = JS_DupValue(ctx, *var_refs[1]->pvalue); BREAK;
+ CASE(OP_get_var_ref2): *sp++ = JS_DupValue(ctx, *var_refs[2]->pvalue); BREAK;
+ CASE(OP_get_var_ref3): *sp++ = JS_DupValue(ctx, *var_refs[3]->pvalue); BREAK;
+ CASE(OP_put_var_ref0): set_value(ctx, var_refs[0]->pvalue, *--sp); BREAK;
+ CASE(OP_put_var_ref1): set_value(ctx, var_refs[1]->pvalue, *--sp); BREAK;
+ CASE(OP_put_var_ref2): set_value(ctx, var_refs[2]->pvalue, *--sp); BREAK;
+ CASE(OP_put_var_ref3): set_value(ctx, var_refs[3]->pvalue, *--sp); BREAK;
+ CASE(OP_set_var_ref0): set_value(ctx, var_refs[0]->pvalue, JS_DupValue(ctx, sp[-1])); BREAK;
+ CASE(OP_set_var_ref1): set_value(ctx, var_refs[1]->pvalue, JS_DupValue(ctx, sp[-1])); BREAK;
+ CASE(OP_set_var_ref2): set_value(ctx, var_refs[2]->pvalue, JS_DupValue(ctx, sp[-1])); BREAK;
+ CASE(OP_set_var_ref3): set_value(ctx, var_refs[3]->pvalue, JS_DupValue(ctx, sp[-1])); BREAK;
+#endif
+
+ CASE(OP_get_var_ref):
+ {
+ int idx;
+ JSValue val;
+ idx = get_u16(pc);
+ pc += 2;
+ val = *var_refs[idx]->pvalue;
+ sp[0] = JS_DupValue(ctx, val);
+ sp++;
+ }
+ BREAK;
+ CASE(OP_put_var_ref):
+ {
+ int idx;
+ idx = get_u16(pc);
+ pc += 2;
+ set_value(ctx, var_refs[idx]->pvalue, sp[-1]);
+ sp--;
+ }
+ BREAK;
+ CASE(OP_set_var_ref):
+ {
+ int idx;
+ idx = get_u16(pc);
+ pc += 2;
+ set_value(ctx, var_refs[idx]->pvalue, JS_DupValue(ctx, sp[-1]));
+ }
+ BREAK;
+ CASE(OP_get_var_ref_check):
+ {
+ int idx;
+ JSValue val;
+ idx = get_u16(pc);
+ pc += 2;
+ val = *var_refs[idx]->pvalue;
+ if (unlikely(JS_IsUninitialized(val))) {
+ JS_ThrowReferenceErrorUninitialized2(ctx, b, idx, TRUE);
+ goto exception;
+ }
+ sp[0] = JS_DupValue(ctx, val);
+ sp++;
+ }
+ BREAK;
+ CASE(OP_put_var_ref_check):
+ {
+ int idx;
+ idx = get_u16(pc);
+ pc += 2;
+ if (unlikely(JS_IsUninitialized(*var_refs[idx]->pvalue))) {
+ JS_ThrowReferenceErrorUninitialized2(ctx, b, idx, TRUE);
+ goto exception;
+ }
+ set_value(ctx, var_refs[idx]->pvalue, sp[-1]);
+ sp--;
+ }
+ BREAK;
+ CASE(OP_put_var_ref_check_init):
+ {
+ int idx;
+ idx = get_u16(pc);
+ pc += 2;
+ if (unlikely(!JS_IsUninitialized(*var_refs[idx]->pvalue))) {
+ JS_ThrowReferenceErrorUninitialized2(ctx, b, idx, TRUE);
+ goto exception;
+ }
+ set_value(ctx, var_refs[idx]->pvalue, sp[-1]);
+ sp--;
+ }
+ BREAK;
+ CASE(OP_set_loc_uninitialized):
+ {
+ int idx;
+ idx = get_u16(pc);
+ pc += 2;
+ set_value(ctx, &var_buf[idx], JS_UNINITIALIZED);
+ }
+ BREAK;
+ CASE(OP_get_loc_check):
+ {
+ int idx;
+ idx = get_u16(pc);
+ pc += 2;
+ if (unlikely(JS_IsUninitialized(var_buf[idx]))) {
+ JS_ThrowReferenceErrorUninitialized2(ctx, b, idx, FALSE);
+ goto exception;
+ }
+ sp[0] = JS_DupValue(ctx, var_buf[idx]);
+ sp++;
+ }
+ BREAK;
+ CASE(OP_get_loc_checkthis):
+ {
+ int idx;
+ idx = get_u16(pc);
+ pc += 2;
+ if (unlikely(JS_IsUninitialized(var_buf[idx]))) {
+ JS_ThrowReferenceErrorUninitialized2(caller_ctx, b, idx, FALSE);
+ goto exception;
+ }
+ sp[0] = JS_DupValue(ctx, var_buf[idx]);
+ sp++;
+ }
+ BREAK;
+ CASE(OP_put_loc_check):
+ {
+ int idx;
+ idx = get_u16(pc);
+ pc += 2;
+ if (unlikely(JS_IsUninitialized(var_buf[idx]))) {
+ JS_ThrowReferenceErrorUninitialized2(ctx, b, idx, FALSE);
+ goto exception;
+ }
+ set_value(ctx, &var_buf[idx], sp[-1]);
+ sp--;
+ }
+ BREAK;
+ CASE(OP_put_loc_check_init):
+ {
+ int idx;
+ idx = get_u16(pc);
+ pc += 2;
+ if (unlikely(!JS_IsUninitialized(var_buf[idx]))) {
+ JS_ThrowReferenceError(ctx, "'this' can be initialized only once");
+ goto exception;
+ }
+ set_value(ctx, &var_buf[idx], sp[-1]);
+ sp--;
+ }
+ BREAK;
+ CASE(OP_close_loc):
+ {
+ int idx;
+ idx = get_u16(pc);
+ pc += 2;
+ close_lexical_var(ctx, sf, idx, FALSE);
+ }
+ BREAK;
+
+ CASE(OP_make_loc_ref):
+ CASE(OP_make_arg_ref):
+ CASE(OP_make_var_ref_ref):
+ {
+ JSVarRef *var_ref;
+ JSProperty *pr;
+ JSAtom atom;
+ int idx;
+ atom = get_u32(pc);
+ idx = get_u16(pc + 4);
+ pc += 6;
+ *sp++ = JS_NewObjectProto(ctx, JS_NULL);
+ if (unlikely(JS_IsException(sp[-1])))
+ goto exception;
+ if (opcode == OP_make_var_ref_ref) {
+ var_ref = var_refs[idx];
+ var_ref->header.ref_count++;
+ } else {
+ var_ref = get_var_ref(ctx, sf, idx, opcode == OP_make_arg_ref);
+ if (!var_ref)
+ goto exception;
+ }
+ pr = add_property(ctx, JS_VALUE_GET_OBJ(sp[-1]), atom,
+ JS_PROP_WRITABLE | JS_PROP_VARREF);
+ if (!pr) {
+ free_var_ref(rt, var_ref);
+ goto exception;
+ }
+ pr->u.var_ref = var_ref;
+ *sp++ = JS_AtomToValue(ctx, atom);
+ }
+ BREAK;
+ CASE(OP_make_var_ref):
+ {
+ JSAtom atom;
+ atom = get_u32(pc);
+ pc += 4;
+
+ if (JS_GetGlobalVarRef(ctx, atom, sp))
+ goto exception;
+ sp += 2;
+ }
+ BREAK;
+
+ CASE(OP_goto):
+ pc += (int32_t)get_u32(pc);
+ if (unlikely(js_poll_interrupts(ctx)))
+ goto exception;
+ BREAK;
+#if SHORT_OPCODES
+ CASE(OP_goto16):
+ pc += (int16_t)get_u16(pc);
+ if (unlikely(js_poll_interrupts(ctx)))
+ goto exception;
+ BREAK;
+ CASE(OP_goto8):
+ pc += (int8_t)pc[0];
+ if (unlikely(js_poll_interrupts(ctx)))
+ goto exception;
+ BREAK;
+#endif
+ CASE(OP_if_true):
+ {
+ int res;
+ JSValue op1;
+
+ op1 = sp[-1];
+ pc += 4;
+ if ((uint32_t)JS_VALUE_GET_TAG(op1) <= JS_TAG_UNDEFINED) {
+ res = JS_VALUE_GET_INT(op1);
+ } else {
+ res = JS_ToBoolFree(ctx, op1);
+ }
+ sp--;
+ if (res) {
+ pc += (int32_t)get_u32(pc - 4) - 4;
+ }
+ if (unlikely(js_poll_interrupts(ctx)))
+ goto exception;
+ }
+ BREAK;
+ CASE(OP_if_false):
+ {
+ int res;
+ JSValue op1;
+
+ op1 = sp[-1];
+ pc += 4;
+ /* quick and dirty test for JS_TAG_INT, JS_TAG_BOOL, JS_TAG_NULL and JS_TAG_UNDEFINED */
+ if ((uint32_t)JS_VALUE_GET_TAG(op1) <= JS_TAG_UNDEFINED) {
+ res = JS_VALUE_GET_INT(op1);
+ } else {
+ res = JS_ToBoolFree(ctx, op1);
+ }
+ sp--;
+ if (!res) {
+ pc += (int32_t)get_u32(pc - 4) - 4;
+ }
+ if (unlikely(js_poll_interrupts(ctx)))
+ goto exception;
+ }
+ BREAK;
+#if SHORT_OPCODES
+ CASE(OP_if_true8):
+ {
+ int res;
+ JSValue op1;
+
+ op1 = sp[-1];
+ pc += 1;
+ if ((uint32_t)JS_VALUE_GET_TAG(op1) <= JS_TAG_UNDEFINED) {
+ res = JS_VALUE_GET_INT(op1);
+ } else {
+ res = JS_ToBoolFree(ctx, op1);
+ }
+ sp--;
+ if (res) {
+ pc += (int8_t)pc[-1] - 1;
+ }
+ if (unlikely(js_poll_interrupts(ctx)))
+ goto exception;
+ }
+ BREAK;
+ CASE(OP_if_false8):
+ {
+ int res;
+ JSValue op1;
+
+ op1 = sp[-1];
+ pc += 1;
+ if ((uint32_t)JS_VALUE_GET_TAG(op1) <= JS_TAG_UNDEFINED) {
+ res = JS_VALUE_GET_INT(op1);
+ } else {
+ res = JS_ToBoolFree(ctx, op1);
+ }
+ sp--;
+ if (!res) {
+ pc += (int8_t)pc[-1] - 1;
+ }
+ if (unlikely(js_poll_interrupts(ctx)))
+ goto exception;
+ }
+ BREAK;
+#endif
+ CASE(OP_catch):
+ {
+ int32_t diff;
+ diff = get_u32(pc);
+ sp[0] = JS_NewCatchOffset(ctx, pc + diff - b->byte_code_buf);
+ sp++;
+ pc += 4;
+ }
+ BREAK;
+ CASE(OP_gosub):
+ {
+ int32_t diff;
+ diff = get_u32(pc);
+ /* XXX: should have a different tag to avoid security flaw */
+ sp[0] = JS_NewInt32(ctx, pc + 4 - b->byte_code_buf);
+ sp++;
+ pc += diff;
+ }
+ BREAK;
+ CASE(OP_ret):
+ {
+ JSValue op1;
+ uint32_t pos;
+ op1 = sp[-1];
+ if (unlikely(JS_VALUE_GET_TAG(op1) != JS_TAG_INT))
+ goto ret_fail;
+ pos = JS_VALUE_GET_INT(op1);
+ if (unlikely(pos >= b->byte_code_len)) {
+ ret_fail:
+ JS_ThrowInternalError(ctx, "invalid ret value");
+ goto exception;
+ }
+ sp--;
+ pc = b->byte_code_buf + pos;
+ }
+ BREAK;
+
+ CASE(OP_for_in_start):
+ if (js_for_in_start(ctx, sp))
+ goto exception;
+ BREAK;
+ CASE(OP_for_in_next):
+ if (js_for_in_next(ctx, sp))
+ goto exception;
+ sp += 2;
+ BREAK;
+ CASE(OP_for_of_start):
+ if (js_for_of_start(ctx, sp, FALSE))
+ goto exception;
+ sp += 1;
+ *sp++ = JS_NewCatchOffset(ctx, 0);
+ BREAK;
+ CASE(OP_for_of_next):
+ {
+ int offset = -3 - pc[0];
+ pc += 1;
+ if (js_for_of_next(ctx, sp, offset))
+ goto exception;
+ sp += 2;
+ }
+ BREAK;
+ CASE(OP_for_await_of_start):
+ if (js_for_of_start(ctx, sp, TRUE))
+ goto exception;
+ sp += 1;
+ *sp++ = JS_NewCatchOffset(ctx, 0);
+ BREAK;
+ CASE(OP_iterator_get_value_done):
+ if (js_iterator_get_value_done(ctx, sp))
+ goto exception;
+ sp += 1;
+ BREAK;
+ CASE(OP_iterator_check_object):
+ if (unlikely(!JS_IsObject(sp[-1]))) {
+ JS_ThrowTypeError(ctx, "iterator must return an object");
+ goto exception;
+ }
+ BREAK;
+
+ CASE(OP_iterator_close):
+ /* iter_obj next catch_offset -> */
+ sp--; /* drop the catch offset to avoid getting caught by exception */
+ JS_FreeValue(ctx, sp[-1]); /* drop the next method */
+ sp--;
+ if (!JS_IsUndefined(sp[-1])) {
+ if (JS_IteratorClose(ctx, sp[-1], FALSE))
+ goto exception;
+ JS_FreeValue(ctx, sp[-1]);
+ }
+ sp--;
+ BREAK;
+ CASE(OP_nip_catch):
+ {
+ JSValue ret_val;
+ /* catch_offset ... ret_val -> ret_eval */
+ ret_val = *--sp;
+ while (sp > stack_buf &&
+ JS_VALUE_GET_TAG(sp[-1]) != JS_TAG_CATCH_OFFSET) {
+ JS_FreeValue(ctx, *--sp);
+ }
+ if (unlikely(sp == stack_buf)) {
+ JS_ThrowInternalError(ctx, "nip_catch");
+ JS_FreeValue(ctx, ret_val);
+ goto exception;
+ }
+ sp[-1] = ret_val;
+ }
+ BREAK;
+
+ CASE(OP_iterator_next):
+ /* stack: iter_obj next catch_offset val */
+ {
+ JSValue ret;
+ ret = JS_Call(ctx, sp[-3], sp[-4],
+ 1, (JSValueConst *)(sp - 1));
+ if (JS_IsException(ret))
+ goto exception;
+ JS_FreeValue(ctx, sp[-1]);
+ sp[-1] = ret;
+ }
+ BREAK;
+
+ CASE(OP_iterator_call):
+ /* stack: iter_obj next catch_offset val */
+ {
+ JSValue method, ret;
+ BOOL ret_flag;
+ int flags;
+ flags = *pc++;
+ method = JS_GetProperty(ctx, sp[-4], (flags & 1) ?
+ JS_ATOM_throw : JS_ATOM_return);
+ if (JS_IsException(method))
+ goto exception;
+ if (JS_IsUndefined(method) || JS_IsNull(method)) {
+ ret_flag = TRUE;
+ } else {
+ if (flags & 2) {
+ /* no argument */
+ ret = JS_CallFree(ctx, method, sp[-4],
+ 0, NULL);
+ } else {
+ ret = JS_CallFree(ctx, method, sp[-4],
+ 1, (JSValueConst *)(sp - 1));
+ }
+ if (JS_IsException(ret))
+ goto exception;
+ JS_FreeValue(ctx, sp[-1]);
+ sp[-1] = ret;
+ ret_flag = FALSE;
+ }
+ sp[0] = JS_NewBool(ctx, ret_flag);
+ sp += 1;
+ }
+ BREAK;
+
+ CASE(OP_lnot):
+ {
+ int res;
+ JSValue op1;
+
+ op1 = sp[-1];
+ if ((uint32_t)JS_VALUE_GET_TAG(op1) <= JS_TAG_UNDEFINED) {
+ res = JS_VALUE_GET_INT(op1) != 0;
+ } else {
+ res = JS_ToBoolFree(ctx, op1);
+ }
+ sp[-1] = JS_NewBool(ctx, !res);
+ }
+ BREAK;
+
+ CASE(OP_get_field):
+ {
+ JSValue val;
+ JSAtom atom;
+ atom = get_u32(pc);
+ pc += 4;
+
+ val = JS_GetProperty(ctx, sp[-1], atom);
+ if (unlikely(JS_IsException(val)))
+ goto exception;
+ JS_FreeValue(ctx, sp[-1]);
+ sp[-1] = val;
+ }
+ BREAK;
+
+ CASE(OP_get_field2):
+ {
+ JSValue val;
+ JSAtom atom;
+ atom = get_u32(pc);
+ pc += 4;
+
+ val = JS_GetProperty(ctx, sp[-1], atom);
+ if (unlikely(JS_IsException(val)))
+ goto exception;
+ *sp++ = val;
+ }
+ BREAK;
+
+ CASE(OP_put_field):
+ {
+ int ret;
+ JSAtom atom;
+ atom = get_u32(pc);
+ pc += 4;
+
+ ret = JS_SetPropertyInternal(ctx, sp[-2], atom, sp[-1], sp[-2],
+ JS_PROP_THROW_STRICT);
+ JS_FreeValue(ctx, sp[-2]);
+ sp -= 2;
+ if (unlikely(ret < 0))
+ goto exception;
+ }
+ BREAK;
+
+ CASE(OP_private_symbol):
+ {
+ JSAtom atom;
+ JSValue val;
+
+ atom = get_u32(pc);
+ pc += 4;
+ val = JS_NewSymbolFromAtom(ctx, atom, JS_ATOM_TYPE_PRIVATE);
+ if (JS_IsException(val))
+ goto exception;
+ *sp++ = val;
+ }
+ BREAK;
+
+ CASE(OP_get_private_field):
+ {
+ JSValue val;
+
+ val = JS_GetPrivateField(ctx, sp[-2], sp[-1]);
+ JS_FreeValue(ctx, sp[-1]);
+ JS_FreeValue(ctx, sp[-2]);
+ sp[-2] = val;
+ sp--;
+ if (unlikely(JS_IsException(val)))
+ goto exception;
+ }
+ BREAK;
+
+ CASE(OP_put_private_field):
+ {
+ int ret;
+ ret = JS_SetPrivateField(ctx, sp[-3], sp[-1], sp[-2]);
+ JS_FreeValue(ctx, sp[-3]);
+ JS_FreeValue(ctx, sp[-1]);
+ sp -= 3;
+ if (unlikely(ret < 0))
+ goto exception;
+ }
+ BREAK;
+
+ CASE(OP_define_private_field):
+ {
+ int ret;
+ ret = JS_DefinePrivateField(ctx, sp[-3], sp[-2], sp[-1]);
+ JS_FreeValue(ctx, sp[-2]);
+ sp -= 2;
+ if (unlikely(ret < 0))
+ goto exception;
+ }
+ BREAK;
+
+ CASE(OP_define_field):
+ {
+ int ret;
+ JSAtom atom;
+ atom = get_u32(pc);
+ pc += 4;
+
+ ret = JS_DefinePropertyValue(ctx, sp[-2], atom, sp[-1],
+ JS_PROP_C_W_E | JS_PROP_THROW);
+ sp--;
+ if (unlikely(ret < 0))
+ goto exception;
+ }
+ BREAK;
+
+ CASE(OP_set_name):
+ {
+ int ret;
+ JSAtom atom;
+ atom = get_u32(pc);
+ pc += 4;
+
+ ret = JS_DefineObjectName(ctx, sp[-1], atom, JS_PROP_CONFIGURABLE);
+ if (unlikely(ret < 0))
+ goto exception;
+ }
+ BREAK;
+ CASE(OP_set_name_computed):
+ {
+ int ret;
+ ret = JS_DefineObjectNameComputed(ctx, sp[-1], sp[-2], JS_PROP_CONFIGURABLE);
+ if (unlikely(ret < 0))
+ goto exception;
+ }
+ BREAK;
+ CASE(OP_set_proto):
+ {
+ JSValue proto;
+ proto = sp[-1];
+ if (JS_IsObject(proto) || JS_IsNull(proto)) {
+ if (JS_SetPrototypeInternal(ctx, sp[-2], proto, TRUE) < 0)
+ goto exception;
+ }
+ JS_FreeValue(ctx, proto);
+ sp--;
+ }
+ BREAK;
+ CASE(OP_set_home_object):
+ js_method_set_home_object(ctx, sp[-1], sp[-2]);
+ BREAK;
+ CASE(OP_define_method):
+ CASE(OP_define_method_computed):
+ {
+ JSValue getter, setter, value;
+ JSValueConst obj;
+ JSAtom atom;
+ int flags, ret, op_flags;
+ BOOL is_computed;
+#define OP_DEFINE_METHOD_METHOD 0
+#define OP_DEFINE_METHOD_GETTER 1
+#define OP_DEFINE_METHOD_SETTER 2
+#define OP_DEFINE_METHOD_ENUMERABLE 4
+
+ is_computed = (opcode == OP_define_method_computed);
+ if (is_computed) {
+ atom = JS_ValueToAtom(ctx, sp[-2]);
+ if (unlikely(atom == JS_ATOM_NULL))
+ goto exception;
+ opcode += OP_define_method - OP_define_method_computed;
+ } else {
+ atom = get_u32(pc);
+ pc += 4;
+ }
+ op_flags = *pc++;
+
+ obj = sp[-2 - is_computed];
+ flags = JS_PROP_HAS_CONFIGURABLE | JS_PROP_CONFIGURABLE |
+ JS_PROP_HAS_ENUMERABLE | JS_PROP_THROW;
+ if (op_flags & OP_DEFINE_METHOD_ENUMERABLE)
+ flags |= JS_PROP_ENUMERABLE;
+ op_flags &= 3;
+ value = JS_UNDEFINED;
+ getter = JS_UNDEFINED;
+ setter = JS_UNDEFINED;
+ if (op_flags == OP_DEFINE_METHOD_METHOD) {
+ value = sp[-1];
+ flags |= JS_PROP_HAS_VALUE | JS_PROP_HAS_WRITABLE | JS_PROP_WRITABLE;
+ } else if (op_flags == OP_DEFINE_METHOD_GETTER) {
+ getter = sp[-1];
+ flags |= JS_PROP_HAS_GET;
+ } else {
+ setter = sp[-1];
+ flags |= JS_PROP_HAS_SET;
+ }
+ ret = js_method_set_properties(ctx, sp[-1], atom, flags, obj);
+ if (ret >= 0) {
+ ret = JS_DefineProperty(ctx, obj, atom, value,
+ getter, setter, flags);
+ }
+ JS_FreeValue(ctx, sp[-1]);
+ if (is_computed) {
+ JS_FreeAtom(ctx, atom);
+ JS_FreeValue(ctx, sp[-2]);
+ }
+ sp -= 1 + is_computed;
+ if (unlikely(ret < 0))
+ goto exception;
+ }
+ BREAK;
+
+ CASE(OP_define_class):
+ CASE(OP_define_class_computed):
+ {
+ int class_flags;
+ JSAtom atom;
+
+ atom = get_u32(pc);
+ class_flags = pc[4];
+ pc += 5;
+ if (js_op_define_class(ctx, sp, atom, class_flags,
+ var_refs, sf,
+ (opcode == OP_define_class_computed)) < 0)
+ goto exception;
+ }
+ BREAK;
+
+ CASE(OP_get_array_el):
+ {
+ JSValue val;
+
+ val = JS_GetPropertyValue(ctx, sp[-2], sp[-1]);
+ JS_FreeValue(ctx, sp[-2]);
+ sp[-2] = val;
+ sp--;
+ if (unlikely(JS_IsException(val)))
+ goto exception;
+ }
+ BREAK;
+
+ CASE(OP_get_array_el2):
+ {
+ JSValue val;
+
+ val = JS_GetPropertyValue(ctx, sp[-2], sp[-1]);
+ sp[-1] = val;
+ if (unlikely(JS_IsException(val)))
+ goto exception;
+ }
+ BREAK;
+
+ CASE(OP_get_ref_value):
+ {
+ JSValue val;
+ if (unlikely(JS_IsUndefined(sp[-2]))) {
+ JSAtom atom = JS_ValueToAtom(ctx, sp[-1]);
+ if (atom != JS_ATOM_NULL) {
+ JS_ThrowReferenceErrorNotDefined(ctx, atom);
+ JS_FreeAtom(ctx, atom);
+ }
+ goto exception;
+ }
+ val = JS_GetPropertyValue(ctx, sp[-2],
+ JS_DupValue(ctx, sp[-1]));
+ if (unlikely(JS_IsException(val)))
+ goto exception;
+ sp[0] = val;
+ sp++;
+ }
+ BREAK;
+
+ CASE(OP_get_super_value):
+ {
+ JSValue val;
+ JSAtom atom;
+ atom = JS_ValueToAtom(ctx, sp[-1]);
+ if (unlikely(atom == JS_ATOM_NULL))
+ goto exception;
+ val = JS_GetPropertyInternal(ctx, sp[-2], atom, sp[-3], FALSE);
+ JS_FreeAtom(ctx, atom);
+ if (unlikely(JS_IsException(val)))
+ goto exception;
+ JS_FreeValue(ctx, sp[-1]);
+ JS_FreeValue(ctx, sp[-2]);
+ JS_FreeValue(ctx, sp[-3]);
+ sp[-3] = val;
+ sp -= 2;
+ }
+ BREAK;
+
+ CASE(OP_put_array_el):
+ {
+ int ret;
+
+ ret = JS_SetPropertyValue(ctx, sp[-3], sp[-2], sp[-1], JS_PROP_THROW_STRICT);
+ JS_FreeValue(ctx, sp[-3]);
+ sp -= 3;
+ if (unlikely(ret < 0))
+ goto exception;
+ }
+ BREAK;
+
+ CASE(OP_put_ref_value):
+ {
+ int ret, flags;
+ flags = JS_PROP_THROW_STRICT;
+ if (unlikely(JS_IsUndefined(sp[-3]))) {
+ if (is_strict_mode(ctx)) {
+ JSAtom atom = JS_ValueToAtom(ctx, sp[-2]);
+ if (atom != JS_ATOM_NULL) {
+ JS_ThrowReferenceErrorNotDefined(ctx, atom);
+ JS_FreeAtom(ctx, atom);
+ }
+ goto exception;
+ } else {
+ sp[-3] = JS_DupValue(ctx, ctx->global_obj);
+ }
+ } else {
+ if (is_strict_mode(ctx))
+ flags |= JS_PROP_NO_ADD;
+ }
+ ret = JS_SetPropertyValue(ctx, sp[-3], sp[-2], sp[-1], flags);
+ JS_FreeValue(ctx, sp[-3]);
+ sp -= 3;
+ if (unlikely(ret < 0))
+ goto exception;
+ }
+ BREAK;
+
+ CASE(OP_put_super_value):
+ {
+ int ret;
+ JSAtom atom;
+ if (JS_VALUE_GET_TAG(sp[-3]) != JS_TAG_OBJECT) {
+ JS_ThrowTypeErrorNotAnObject(ctx);
+ goto exception;
+ }
+ atom = JS_ValueToAtom(ctx, sp[-2]);
+ if (unlikely(atom == JS_ATOM_NULL))
+ goto exception;
+ ret = JS_SetPropertyInternal(ctx, sp[-3], atom, sp[-1], sp[-4],
+ JS_PROP_THROW_STRICT);
+ JS_FreeAtom(ctx, atom);
+ JS_FreeValue(ctx, sp[-4]);
+ JS_FreeValue(ctx, sp[-3]);
+ JS_FreeValue(ctx, sp[-2]);
+ sp -= 4;
+ if (ret < 0)
+ goto exception;
+ }
+ BREAK;
+
+ CASE(OP_define_array_el):
+ {
+ int ret;
+ ret = JS_DefinePropertyValueValue(ctx, sp[-3], JS_DupValue(ctx, sp[-2]), sp[-1],
+ JS_PROP_C_W_E | JS_PROP_THROW);
+ sp -= 1;
+ if (unlikely(ret < 0))
+ goto exception;
+ }
+ BREAK;
+
+ CASE(OP_append): /* array pos enumobj -- array pos */
+ {
+ if (js_append_enumerate(ctx, sp))
+ goto exception;
+ JS_FreeValue(ctx, *--sp);
+ }
+ BREAK;
+
+ CASE(OP_copy_data_properties): /* target source excludeList */
+ {
+ /* stack offsets (-1 based):
+ 2 bits for target,
+ 3 bits for source,
+ 2 bits for exclusionList */
+ int mask;
+
+ mask = *pc++;
+ if (JS_CopyDataProperties(ctx, sp[-1 - (mask & 3)],
+ sp[-1 - ((mask >> 2) & 7)],
+ sp[-1 - ((mask >> 5) & 7)], 0))
+ goto exception;
+ }
+ BREAK;
+
+ CASE(OP_add):
+ {
+ JSValue op1, op2;
+ op1 = sp[-2];
+ op2 = sp[-1];
+ if (likely(JS_VALUE_IS_BOTH_INT(op1, op2))) {
+ int64_t r;
+ r = (int64_t)JS_VALUE_GET_INT(op1) + JS_VALUE_GET_INT(op2);
+ if (unlikely((int)r != r))
+ goto add_slow;
+ sp[-2] = JS_NewInt32(ctx, r);
+ sp--;
+ } else if (JS_VALUE_IS_BOTH_FLOAT(op1, op2)) {
+ sp[-2] = __JS_NewFloat64(ctx, JS_VALUE_GET_FLOAT64(op1) +
+ JS_VALUE_GET_FLOAT64(op2));
+ sp--;
+ } else if (JS_IsString(op1) && JS_IsString(op2)) {
+ sp[-2] = JS_ConcatString(ctx, op1, op2);
+ sp--;
+ if (JS_IsException(sp[-1]))
+ goto exception;
+ } else {
+ add_slow:
+ if (js_add_slow(ctx, sp))
+ goto exception;
+ sp--;
+ }
+ }
+ BREAK;
+ CASE(OP_add_loc):
+ {
+ JSValue op2;
+ JSValue *pv;
+ int idx;
+ idx = *pc;
+ pc += 1;
+
+ op2 = sp[-1];
+ pv = &var_buf[idx];
+ if (likely(JS_VALUE_IS_BOTH_INT(*pv, op2))) {
+ int64_t r;
+ r = (int64_t)JS_VALUE_GET_INT(*pv) + JS_VALUE_GET_INT(op2);
+ if (unlikely((int)r != r))
+ goto add_loc_slow;
+ *pv = JS_NewInt32(ctx, r);
+ sp--;
+ } else if (JS_VALUE_IS_BOTH_FLOAT(*pv, op2)) {
+ *pv = __JS_NewFloat64(ctx, JS_VALUE_GET_FLOAT64(*pv) +
+ JS_VALUE_GET_FLOAT64(op2));
+ sp--;
+ } else if (JS_VALUE_GET_TAG(*pv) == JS_TAG_STRING) {
+ sp--;
+ op2 = JS_ToPrimitiveFree(ctx, op2, HINT_NONE);
+ if (JS_IsException(op2))
+ goto exception;
+ if (JS_ConcatStringInPlace(ctx, JS_VALUE_GET_STRING(*pv), op2)) {
+ JS_FreeValue(ctx, op2);
+ } else {
+ op2 = JS_ConcatString(ctx, JS_DupValue(ctx, *pv), op2);
+ if (JS_IsException(op2))
+ goto exception;
+ set_value(ctx, pv, op2);
+ }
+ } else {
+ JSValue ops[2];
+ add_loc_slow:
+ /* In case of exception, js_add_slow frees ops[0]
+ and ops[1], so we must duplicate *pv */
+ ops[0] = JS_DupValue(ctx, *pv);
+ ops[1] = op2;
+ sp--;
+ if (js_add_slow(ctx, ops + 2))
+ goto exception;
+ set_value(ctx, pv, ops[0]);
+ }
+ }
+ BREAK;
+ CASE(OP_sub):
+ {
+ JSValue op1, op2;
+ op1 = sp[-2];
+ op2 = sp[-1];
+ if (likely(JS_VALUE_IS_BOTH_INT(op1, op2))) {
+ int64_t r;
+ r = (int64_t)JS_VALUE_GET_INT(op1) - JS_VALUE_GET_INT(op2);
+ if (unlikely((int)r != r))
+ goto binary_arith_slow;
+ sp[-2] = JS_NewInt32(ctx, r);
+ sp--;
+ } else if (JS_VALUE_IS_BOTH_FLOAT(op1, op2)) {
+ sp[-2] = __JS_NewFloat64(ctx, JS_VALUE_GET_FLOAT64(op1) -
+ JS_VALUE_GET_FLOAT64(op2));
+ sp--;
+ } else {
+ goto binary_arith_slow;
+ }
+ }
+ BREAK;
+ CASE(OP_mul):
+ {
+ JSValue op1, op2;
+ double d;
+ op1 = sp[-2];
+ op2 = sp[-1];
+ if (likely(JS_VALUE_IS_BOTH_INT(op1, op2))) {
+ int32_t v1, v2;
+ int64_t r;
+ v1 = JS_VALUE_GET_INT(op1);
+ v2 = JS_VALUE_GET_INT(op2);
+ r = (int64_t)v1 * v2;
+ if (unlikely((int)r != r)) {
+#ifdef CONFIG_BIGNUM
+ if (unlikely(sf->js_mode & JS_MODE_MATH) &&
+ (r < -MAX_SAFE_INTEGER || r > MAX_SAFE_INTEGER))
+ goto binary_arith_slow;
+#endif
+ d = (double)r;
+ goto mul_fp_res;
+ }
+ /* need to test zero case for -0 result */
+ if (unlikely(r == 0 && (v1 | v2) < 0)) {
+ d = -0.0;
+ goto mul_fp_res;
+ }
+ sp[-2] = JS_NewInt32(ctx, r);
+ sp--;
+ } else if (JS_VALUE_IS_BOTH_FLOAT(op1, op2)) {
+#ifdef CONFIG_BIGNUM
+ if (unlikely(sf->js_mode & JS_MODE_MATH))
+ goto binary_arith_slow;
+#endif
+ d = JS_VALUE_GET_FLOAT64(op1) * JS_VALUE_GET_FLOAT64(op2);
+ mul_fp_res:
+ sp[-2] = __JS_NewFloat64(ctx, d);
+ sp--;
+ } else {
+ goto binary_arith_slow;
+ }
+ }
+ BREAK;
+ CASE(OP_div):
+ {
+ JSValue op1, op2;
+ op1 = sp[-2];
+ op2 = sp[-1];
+ if (likely(JS_VALUE_IS_BOTH_INT(op1, op2))) {
+ int v1, v2;
+ if (unlikely(sf->js_mode & JS_MODE_MATH))
+ goto binary_arith_slow;
+ v1 = JS_VALUE_GET_INT(op1);
+ v2 = JS_VALUE_GET_INT(op2);
+ sp[-2] = JS_NewFloat64(ctx, (double)v1 / (double)v2);
+ sp--;
+ } else {
+ goto binary_arith_slow;
+ }
+ }
+ BREAK;
+ CASE(OP_mod):
+#ifdef CONFIG_BIGNUM
+ CASE(OP_math_mod):
+#endif
+ {
+ JSValue op1, op2;
+ op1 = sp[-2];
+ op2 = sp[-1];
+ if (likely(JS_VALUE_IS_BOTH_INT(op1, op2))) {
+ int v1, v2, r;
+ v1 = JS_VALUE_GET_INT(op1);
+ v2 = JS_VALUE_GET_INT(op2);
+ /* We must avoid v2 = 0, v1 = INT32_MIN and v2 =
+ -1 and the cases where the result is -0. */
+ if (unlikely(v1 < 0 || v2 <= 0))
+ goto binary_arith_slow;
+ r = v1 % v2;
+ sp[-2] = JS_NewInt32(ctx, r);
+ sp--;
+ } else {
+ goto binary_arith_slow;
+ }
+ }
+ BREAK;
+ CASE(OP_pow):
+ binary_arith_slow:
+ if (js_binary_arith_slow(ctx, sp, opcode))
+ goto exception;
+ sp--;
+ BREAK;
+
+ CASE(OP_plus):
+ {
+ JSValue op1;
+ uint32_t tag;
+ op1 = sp[-1];
+ tag = JS_VALUE_GET_TAG(op1);
+ if (tag == JS_TAG_INT || JS_TAG_IS_FLOAT64(tag)) {
+ } else {
+ if (js_unary_arith_slow(ctx, sp, opcode))
+ goto exception;
+ }
+ }
+ BREAK;
+ CASE(OP_neg):
+ {
+ JSValue op1;
+ uint32_t tag;
+ int val;
+ double d;
+ op1 = sp[-1];
+ tag = JS_VALUE_GET_TAG(op1);
+ if (tag == JS_TAG_INT) {
+ val = JS_VALUE_GET_INT(op1);
+ /* Note: -0 cannot be expressed as integer */
+ if (unlikely(val == 0)) {
+ d = -0.0;
+ goto neg_fp_res;
+ }
+ if (unlikely(val == INT32_MIN)) {
+ d = -(double)val;
+ goto neg_fp_res;
+ }
+ sp[-1] = JS_NewInt32(ctx, -val);
+ } else if (JS_TAG_IS_FLOAT64(tag)) {
+ d = -JS_VALUE_GET_FLOAT64(op1);
+ neg_fp_res:
+ sp[-1] = __JS_NewFloat64(ctx, d);
+ } else {
+ if (js_unary_arith_slow(ctx, sp, opcode))
+ goto exception;
+ }
+ }
+ BREAK;
+ CASE(OP_inc):
+ {
+ JSValue op1;
+ int val;
+ op1 = sp[-1];
+ if (JS_VALUE_GET_TAG(op1) == JS_TAG_INT) {
+ val = JS_VALUE_GET_INT(op1);
+ if (unlikely(val == INT32_MAX))
+ goto inc_slow;
+ sp[-1] = JS_NewInt32(ctx, val + 1);
+ } else {
+ inc_slow:
+ if (js_unary_arith_slow(ctx, sp, opcode))
+ goto exception;
+ }
+ }
+ BREAK;
+ CASE(OP_dec):
+ {
+ JSValue op1;
+ int val;
+ op1 = sp[-1];
+ if (JS_VALUE_GET_TAG(op1) == JS_TAG_INT) {
+ val = JS_VALUE_GET_INT(op1);
+ if (unlikely(val == INT32_MIN))
+ goto dec_slow;
+ sp[-1] = JS_NewInt32(ctx, val - 1);
+ } else {
+ dec_slow:
+ if (js_unary_arith_slow(ctx, sp, opcode))
+ goto exception;
+ }
+ }
+ BREAK;
+ CASE(OP_post_inc):
+ CASE(OP_post_dec):
+ if (js_post_inc_slow(ctx, sp, opcode))
+ goto exception;
+ sp++;
+ BREAK;
+ CASE(OP_inc_loc):
+ {
+ JSValue op1;
+ int val;
+ int idx;
+ idx = *pc;
+ pc += 1;
+
+ op1 = var_buf[idx];
+ if (JS_VALUE_GET_TAG(op1) == JS_TAG_INT) {
+ val = JS_VALUE_GET_INT(op1);
+ if (unlikely(val == INT32_MAX))
+ goto inc_loc_slow;
+ var_buf[idx] = JS_NewInt32(ctx, val + 1);
+ } else {
+ inc_loc_slow:
+ /* must duplicate otherwise the variable value may
+ be destroyed before JS code accesses it */
+ op1 = JS_DupValue(ctx, op1);
+ if (js_unary_arith_slow(ctx, &op1 + 1, OP_inc))
+ goto exception;
+ set_value(ctx, &var_buf[idx], op1);
+ }
+ }
+ BREAK;
+ CASE(OP_dec_loc):
+ {
+ JSValue op1;
+ int val;
+ int idx;
+ idx = *pc;
+ pc += 1;
+
+ op1 = var_buf[idx];
+ if (JS_VALUE_GET_TAG(op1) == JS_TAG_INT) {
+ val = JS_VALUE_GET_INT(op1);
+ if (unlikely(val == INT32_MIN))
+ goto dec_loc_slow;
+ var_buf[idx] = JS_NewInt32(ctx, val - 1);
+ } else {
+ dec_loc_slow:
+ /* must duplicate otherwise the variable value may
+ be destroyed before JS code accesses it */
+ op1 = JS_DupValue(ctx, op1);
+ if (js_unary_arith_slow(ctx, &op1 + 1, OP_dec))
+ goto exception;
+ set_value(ctx, &var_buf[idx], op1);
+ }
+ }
+ BREAK;
+ CASE(OP_not):
+ {
+ JSValue op1;
+ op1 = sp[-1];
+ if (JS_VALUE_GET_TAG(op1) == JS_TAG_INT) {
+ sp[-1] = JS_NewInt32(ctx, ~JS_VALUE_GET_INT(op1));
+ } else {
+ if (js_not_slow(ctx, sp))
+ goto exception;
+ }
+ }
+ BREAK;
+
+ CASE(OP_shl):
+ {
+ JSValue op1, op2;
+ op1 = sp[-2];
+ op2 = sp[-1];
+ if (likely(JS_VALUE_IS_BOTH_INT(op1, op2))) {
+ uint32_t v1, v2;
+ v1 = JS_VALUE_GET_INT(op1);
+ v2 = JS_VALUE_GET_INT(op2);
+#ifdef CONFIG_BIGNUM
+ {
+ int64_t r;
+ if (unlikely(sf->js_mode & JS_MODE_MATH)) {
+ if (v2 > 0x1f)
+ goto shl_slow;
+ r = (int64_t)v1 << v2;
+ if ((int)r != r)
+ goto shl_slow;
+ } else {
+ v2 &= 0x1f;
+ }
+ }
+#else
+ v2 &= 0x1f;
+#endif
+ sp[-2] = JS_NewInt32(ctx, v1 << v2);
+ sp--;
+ } else {
+#ifdef CONFIG_BIGNUM
+ shl_slow:
+#endif
+ if (js_binary_logic_slow(ctx, sp, opcode))
+ goto exception;
+ sp--;
+ }
+ }
+ BREAK;
+ CASE(OP_shr):
+ {
+ JSValue op1, op2;
+ op1 = sp[-2];
+ op2 = sp[-1];
+ if (likely(JS_VALUE_IS_BOTH_INT(op1, op2))) {
+ uint32_t v2;
+ v2 = JS_VALUE_GET_INT(op2);
+ /* v1 >>> v2 retains its JS semantics if CONFIG_BIGNUM */
+ v2 &= 0x1f;
+ sp[-2] = JS_NewUint32(ctx,
+ (uint32_t)JS_VALUE_GET_INT(op1) >>
+ v2);
+ sp--;
+ } else {
+ if (js_shr_slow(ctx, sp))
+ goto exception;
+ sp--;
+ }
+ }
+ BREAK;
+ CASE(OP_sar):
+ {
+ JSValue op1, op2;
+ op1 = sp[-2];
+ op2 = sp[-1];
+ if (likely(JS_VALUE_IS_BOTH_INT(op1, op2))) {
+ uint32_t v2;
+ v2 = JS_VALUE_GET_INT(op2);
+#ifdef CONFIG_BIGNUM
+ if (unlikely(v2 > 0x1f)) {
+ if (unlikely(sf->js_mode & JS_MODE_MATH))
+ goto sar_slow;
+ else
+ v2 &= 0x1f;
+ }
+#else
+ v2 &= 0x1f;
+#endif
+ sp[-2] = JS_NewInt32(ctx,
+ (int)JS_VALUE_GET_INT(op1) >> v2);
+ sp--;
+ } else {
+#ifdef CONFIG_BIGNUM
+ sar_slow:
+#endif
+ if (js_binary_logic_slow(ctx, sp, opcode))
+ goto exception;
+ sp--;
+ }
+ }
+ BREAK;
+ CASE(OP_and):
+ {
+ JSValue op1, op2;
+ op1 = sp[-2];
+ op2 = sp[-1];
+ if (likely(JS_VALUE_IS_BOTH_INT(op1, op2))) {
+ sp[-2] = JS_NewInt32(ctx,
+ JS_VALUE_GET_INT(op1) &
+ JS_VALUE_GET_INT(op2));
+ sp--;
+ } else {
+ if (js_binary_logic_slow(ctx, sp, opcode))
+ goto exception;
+ sp--;
+ }
+ }
+ BREAK;
+ CASE(OP_or):
+ {
+ JSValue op1, op2;
+ op1 = sp[-2];
+ op2 = sp[-1];
+ if (likely(JS_VALUE_IS_BOTH_INT(op1, op2))) {
+ sp[-2] = JS_NewInt32(ctx,
+ JS_VALUE_GET_INT(op1) |
+ JS_VALUE_GET_INT(op2));
+ sp--;
+ } else {
+ if (js_binary_logic_slow(ctx, sp, opcode))
+ goto exception;
+ sp--;
+ }
+ }
+ BREAK;
+ CASE(OP_xor):
+ {
+ JSValue op1, op2;
+ op1 = sp[-2];
+ op2 = sp[-1];
+ if (likely(JS_VALUE_IS_BOTH_INT(op1, op2))) {
+ sp[-2] = JS_NewInt32(ctx,
+ JS_VALUE_GET_INT(op1) ^
+ JS_VALUE_GET_INT(op2));
+ sp--;
+ } else {
+ if (js_binary_logic_slow(ctx, sp, opcode))
+ goto exception;
+ sp--;
+ }
+ }
+ BREAK;
+
+
+#define OP_CMP(opcode, binary_op, slow_call) \
+ CASE(opcode): \
+ { \
+ JSValue op1, op2; \
+ op1 = sp[-2]; \
+ op2 = sp[-1]; \
+ if (likely(JS_VALUE_IS_BOTH_INT(op1, op2))) { \
+ sp[-2] = JS_NewBool(ctx, JS_VALUE_GET_INT(op1) binary_op JS_VALUE_GET_INT(op2)); \
+ sp--; \
+ } else { \
+ if (slow_call) \
+ goto exception; \
+ sp--; \
+ } \
+ } \
+ BREAK
+
+ OP_CMP(OP_lt, <, js_relational_slow(ctx, sp, opcode));
+ OP_CMP(OP_lte, <=, js_relational_slow(ctx, sp, opcode));
+ OP_CMP(OP_gt, >, js_relational_slow(ctx, sp, opcode));
+ OP_CMP(OP_gte, >=, js_relational_slow(ctx, sp, opcode));
+ OP_CMP(OP_eq, ==, js_eq_slow(ctx, sp, 0));
+ OP_CMP(OP_neq, !=, js_eq_slow(ctx, sp, 1));
+ OP_CMP(OP_strict_eq, ==, js_strict_eq_slow(ctx, sp, 0));
+ OP_CMP(OP_strict_neq, !=, js_strict_eq_slow(ctx, sp, 1));
+
+#ifdef CONFIG_BIGNUM
+ CASE(OP_mul_pow10):
+ if (rt->bigfloat_ops.mul_pow10(ctx, sp))
+ goto exception;
+ sp--;
+ BREAK;
+#endif
+ CASE(OP_in):
+ if (js_operator_in(ctx, sp))
+ goto exception;
+ sp--;
+ BREAK;
+ CASE(OP_private_in):
+ if (js_operator_private_in(ctx, sp))
+ goto exception;
+ sp--;
+ BREAK;
+ CASE(OP_instanceof):
+ if (js_operator_instanceof(ctx, sp))
+ goto exception;
+ sp--;
+ BREAK;
+ CASE(OP_typeof):
+ {
+ JSValue op1;
+ JSAtom atom;
+
+ op1 = sp[-1];
+ atom = js_operator_typeof(ctx, op1);
+ JS_FreeValue(ctx, op1);
+ sp[-1] = JS_AtomToString(ctx, atom);
+ }
+ BREAK;
+ CASE(OP_delete):
+ if (js_operator_delete(ctx, sp))
+ goto exception;
+ sp--;
+ BREAK;
+ CASE(OP_delete_var):
+ {
+ JSAtom atom;
+ int ret;
+
+ atom = get_u32(pc);
+ pc += 4;
+
+ ret = JS_DeleteProperty(ctx, ctx->global_obj, atom, 0);
+ if (unlikely(ret < 0))
+ goto exception;
+ *sp++ = JS_NewBool(ctx, ret);
+ }
+ BREAK;
+
+ CASE(OP_to_object):
+ if (JS_VALUE_GET_TAG(sp[-1]) != JS_TAG_OBJECT) {
+ ret_val = JS_ToObject(ctx, sp[-1]);
+ if (JS_IsException(ret_val))
+ goto exception;
+ JS_FreeValue(ctx, sp[-1]);
+ sp[-1] = ret_val;
+ }
+ BREAK;
+
+ CASE(OP_to_propkey):
+ switch (JS_VALUE_GET_TAG(sp[-1])) {
+ case JS_TAG_INT:
+ case JS_TAG_STRING:
+ case JS_TAG_SYMBOL:
+ break;
+ default:
+ ret_val = JS_ToPropertyKey(ctx, sp[-1]);
+ if (JS_IsException(ret_val))
+ goto exception;
+ JS_FreeValue(ctx, sp[-1]);
+ sp[-1] = ret_val;
+ break;
+ }
+ BREAK;
+
+ CASE(OP_to_propkey2):
+ /* must be tested first */
+ if (unlikely(JS_IsUndefined(sp[-2]) || JS_IsNull(sp[-2]))) {
+ JS_ThrowTypeError(ctx, "value has no property");
+ goto exception;
+ }
+ switch (JS_VALUE_GET_TAG(sp[-1])) {
+ case JS_TAG_INT:
+ case JS_TAG_STRING:
+ case JS_TAG_SYMBOL:
+ break;
+ default:
+ ret_val = JS_ToPropertyKey(ctx, sp[-1]);
+ if (JS_IsException(ret_val))
+ goto exception;
+ JS_FreeValue(ctx, sp[-1]);
+ sp[-1] = ret_val;
+ break;
+ }
+ BREAK;
+#if 0
+ CASE(OP_to_string):
+ if (JS_VALUE_GET_TAG(sp[-1]) != JS_TAG_STRING) {
+ ret_val = JS_ToString(ctx, sp[-1]);
+ if (JS_IsException(ret_val))
+ goto exception;
+ JS_FreeValue(ctx, sp[-1]);
+ sp[-1] = ret_val;
+ }
+ BREAK;
+#endif
+ CASE(OP_with_get_var):
+ CASE(OP_with_put_var):
+ CASE(OP_with_delete_var):
+ CASE(OP_with_make_ref):
+ CASE(OP_with_get_ref):
+ CASE(OP_with_get_ref_undef):
+ {
+ JSAtom atom;
+ int32_t diff;
+ JSValue obj, val;
+ int ret, is_with;
+ atom = get_u32(pc);
+ diff = get_u32(pc + 4);
+ is_with = pc[8];
+ pc += 9;
+
+ obj = sp[-1];
+ ret = JS_HasProperty(ctx, obj, atom);
+ if (unlikely(ret < 0))
+ goto exception;
+ if (ret) {
+ if (is_with) {
+ ret = js_has_unscopable(ctx, obj, atom);
+ if (unlikely(ret < 0))
+ goto exception;
+ if (ret)
+ goto no_with;
+ }
+ switch (opcode) {
+ case OP_with_get_var:
+ val = JS_GetProperty(ctx, obj, atom);
+ if (unlikely(JS_IsException(val)))
+ goto exception;
+ set_value(ctx, &sp[-1], val);
+ break;
+ case OP_with_put_var:
+ /* XXX: check if strict mode */
+ ret = JS_SetPropertyInternal(ctx, obj, atom, sp[-2], obj,
+ JS_PROP_THROW_STRICT);
+ JS_FreeValue(ctx, sp[-1]);
+ sp -= 2;
+ if (unlikely(ret < 0))
+ goto exception;
+ break;
+ case OP_with_delete_var:
+ ret = JS_DeleteProperty(ctx, obj, atom, 0);
+ if (unlikely(ret < 0))
+ goto exception;
+ JS_FreeValue(ctx, sp[-1]);
+ sp[-1] = JS_NewBool(ctx, ret);
+ break;
+ case OP_with_make_ref:
+ /* produce a pair object/propname on the stack */
+ *sp++ = JS_AtomToValue(ctx, atom);
+ break;
+ case OP_with_get_ref:
+ /* produce a pair object/method on the stack */
+ val = JS_GetProperty(ctx, obj, atom);
+ if (unlikely(JS_IsException(val)))
+ goto exception;
+ *sp++ = val;
+ break;
+ case OP_with_get_ref_undef:
+ /* produce a pair undefined/function on the stack */
+ val = JS_GetProperty(ctx, obj, atom);
+ if (unlikely(JS_IsException(val)))
+ goto exception;
+ JS_FreeValue(ctx, sp[-1]);
+ sp[-1] = JS_UNDEFINED;
+ *sp++ = val;
+ break;
+ }
+ pc += diff - 5;
+ } else {
+ no_with:
+ /* if not jumping, drop the object argument */
+ JS_FreeValue(ctx, sp[-1]);
+ sp--;
+ }
+ }
+ BREAK;
+
+ CASE(OP_await):
+ ret_val = JS_NewInt32(ctx, FUNC_RET_AWAIT);
+ goto done_generator;
+ CASE(OP_yield):
+ ret_val = JS_NewInt32(ctx, FUNC_RET_YIELD);
+ goto done_generator;
+ CASE(OP_yield_star):
+ CASE(OP_async_yield_star):
+ ret_val = JS_NewInt32(ctx, FUNC_RET_YIELD_STAR);
+ goto done_generator;
+ CASE(OP_return_async):
+ ret_val = JS_UNDEFINED;
+ goto done_generator;
+ CASE(OP_initial_yield):
+ ret_val = JS_NewInt32(ctx, FUNC_RET_INITIAL_YIELD);
+ goto done_generator;
+
+ CASE(OP_nop):
+ BREAK;
+ CASE(OP_is_undefined_or_null):
+ if (JS_VALUE_GET_TAG(sp[-1]) == JS_TAG_UNDEFINED ||
+ JS_VALUE_GET_TAG(sp[-1]) == JS_TAG_NULL) {
+ goto set_true;
+ } else {
+ goto free_and_set_false;
+ }
+#if SHORT_OPCODES
+ CASE(OP_is_undefined):
+ if (JS_VALUE_GET_TAG(sp[-1]) == JS_TAG_UNDEFINED) {
+ goto set_true;
+ } else {
+ goto free_and_set_false;
+ }
+ CASE(OP_is_null):
+ if (JS_VALUE_GET_TAG(sp[-1]) == JS_TAG_NULL) {
+ goto set_true;
+ } else {
+ goto free_and_set_false;
+ }
+ /* XXX: could merge to a single opcode */
+ CASE(OP_typeof_is_undefined):
+ /* different from OP_is_undefined because of isHTMLDDA */
+ if (js_operator_typeof(ctx, sp[-1]) == JS_ATOM_undefined) {
+ goto free_and_set_true;
+ } else {
+ goto free_and_set_false;
+ }
+ CASE(OP_typeof_is_function):
+ if (js_operator_typeof(ctx, sp[-1]) == JS_ATOM_function) {
+ goto free_and_set_true;
+ } else {
+ goto free_and_set_false;
+ }
+ free_and_set_true:
+ JS_FreeValue(ctx, sp[-1]);
+#endif
+ set_true:
+ sp[-1] = JS_TRUE;
+ BREAK;
+ free_and_set_false:
+ JS_FreeValue(ctx, sp[-1]);
+ sp[-1] = JS_FALSE;
+ BREAK;
+ CASE(OP_invalid):
+ DEFAULT:
+ JS_ThrowInternalError(ctx, "invalid opcode: pc=%u opcode=0x%02x",
+ (int)(pc - b->byte_code_buf - 1), opcode);
+ goto exception;
+ }
+ }
+ exception:
+ if (is_backtrace_needed(ctx, rt->current_exception)) {
+ /* add the backtrace information now (it is not done
+ before if the exception happens in a bytecode
+ operation */
+ sf->cur_pc = pc;
+ build_backtrace(ctx, rt->current_exception, NULL, 0, 0);
+ }
+ if (!JS_IsUncatchableError(ctx, rt->current_exception)) {
+ while (sp > stack_buf) {
+ JSValue val = *--sp;
+ JS_FreeValue(ctx, val);
+ if (JS_VALUE_GET_TAG(val) == JS_TAG_CATCH_OFFSET) {
+ int pos = JS_VALUE_GET_INT(val);
+ if (pos == 0) {
+ /* enumerator: close it with a throw */
+ JS_FreeValue(ctx, sp[-1]); /* drop the next method */
+ sp--;
+ JS_IteratorClose(ctx, sp[-1], TRUE);
+ } else {
+ *sp++ = rt->current_exception;
+ rt->current_exception = JS_NULL;
+ pc = b->byte_code_buf + pos;
+ goto restart;
+ }
+ }
+ }
+ }
+ ret_val = JS_EXCEPTION;
+ /* the local variables are freed by the caller in the generator
+ case. Hence the label 'done' should never be reached in a
+ generator function. */
+ if (b->func_kind != JS_FUNC_NORMAL) {
+ done_generator:
+ sf->cur_pc = pc;
+ sf->cur_sp = sp;
+ } else {
+ done:
+ if (unlikely(!list_empty(&sf->var_ref_list))) {
+ /* variable references reference the stack: must close them */
+ close_var_refs(rt, sf);
+ }
+ /* free the local variables and stack */
+ for(pval = local_buf; pval < sp; pval++) {
+ JS_FreeValue(ctx, *pval);
+ }
+ }
+ rt->current_stack_frame = sf->prev_frame;
+ return ret_val;
+}
+
+JSValue JS_Call(JSContext *ctx, JSValueConst func_obj, JSValueConst this_obj,
+ int argc, JSValueConst *argv)
+{
+ return JS_CallInternal(ctx, func_obj, this_obj, JS_UNDEFINED,
+ argc, (JSValue *)argv, JS_CALL_FLAG_COPY_ARGV);
+}
+
+static JSValue JS_CallFree(JSContext *ctx, JSValue func_obj, JSValueConst this_obj,
+ int argc, JSValueConst *argv)
+{
+ JSValue res = JS_CallInternal(ctx, func_obj, this_obj, JS_UNDEFINED,
+ argc, (JSValue *)argv, JS_CALL_FLAG_COPY_ARGV);
+ JS_FreeValue(ctx, func_obj);
+ return res;
+}
+
+/* warning: the refcount of the context is not incremented. Return
+ NULL in case of exception (case of revoked proxy only) */
+static JSContext *JS_GetFunctionRealm(JSContext *ctx, JSValueConst func_obj)
+{
+ JSObject *p;
+ JSContext *realm;
+
+ if (JS_VALUE_GET_TAG(func_obj) != JS_TAG_OBJECT)
+ return ctx;
+ p = JS_VALUE_GET_OBJ(func_obj);
+ switch(p->class_id) {
+ case JS_CLASS_C_FUNCTION:
+ realm = p->u.cfunc.realm;
+ break;
+ case JS_CLASS_BYTECODE_FUNCTION:
+ case JS_CLASS_GENERATOR_FUNCTION:
+ case JS_CLASS_ASYNC_FUNCTION:
+ case JS_CLASS_ASYNC_GENERATOR_FUNCTION:
+ {
+ JSFunctionBytecode *b;
+ b = p->u.func.function_bytecode;
+ realm = b->realm;
+ }
+ break;
+ case JS_CLASS_PROXY:
+ {
+ JSProxyData *s = p->u.opaque;
+ if (!s)
+ return ctx;
+ if (s->is_revoked) {
+ JS_ThrowTypeErrorRevokedProxy(ctx);
+ return NULL;
+ } else {
+ realm = JS_GetFunctionRealm(ctx, s->target);
+ }
+ }
+ break;
+ case JS_CLASS_BOUND_FUNCTION:
+ {
+ JSBoundFunction *bf = p->u.bound_function;
+ realm = JS_GetFunctionRealm(ctx, bf->func_obj);
+ }
+ break;
+ default:
+ realm = ctx;
+ break;
+ }
+ return realm;
+}
+
+static JSValue js_create_from_ctor(JSContext *ctx, JSValueConst ctor,
+ int class_id)
+{
+ JSValue proto, obj;
+ JSContext *realm;
+
+ if (JS_IsUndefined(ctor)) {
+ proto = JS_DupValue(ctx, ctx->class_proto[class_id]);
+ } else {
+ proto = JS_GetProperty(ctx, ctor, JS_ATOM_prototype);
+ if (JS_IsException(proto))
+ return proto;
+ if (!JS_IsObject(proto)) {
+ JS_FreeValue(ctx, proto);
+ realm = JS_GetFunctionRealm(ctx, ctor);
+ if (!realm)
+ return JS_EXCEPTION;
+ proto = JS_DupValue(ctx, realm->class_proto[class_id]);
+ }
+ }
+ obj = JS_NewObjectProtoClass(ctx, proto, class_id);
+ JS_FreeValue(ctx, proto);
+ return obj;
+}
+
+/* argv[] is modified if (flags & JS_CALL_FLAG_COPY_ARGV) = 0. */
+static JSValue JS_CallConstructorInternal(JSContext *ctx,
+ JSValueConst func_obj,
+ JSValueConst new_target,
+ int argc, JSValue *argv, int flags)
+{
+ JSObject *p;
+ JSFunctionBytecode *b;
+
+ if (js_poll_interrupts(ctx))
+ return JS_EXCEPTION;
+ flags |= JS_CALL_FLAG_CONSTRUCTOR;
+ if (unlikely(JS_VALUE_GET_TAG(func_obj) != JS_TAG_OBJECT))
+ goto not_a_function;
+ p = JS_VALUE_GET_OBJ(func_obj);
+ if (unlikely(!p->is_constructor))
+ return JS_ThrowTypeError(ctx, "not a constructor");
+ if (unlikely(p->class_id != JS_CLASS_BYTECODE_FUNCTION)) {
+ JSClassCall *call_func;
+ call_func = ctx->rt->class_array[p->class_id].call;
+ if (!call_func) {
+ not_a_function:
+ return JS_ThrowTypeError(ctx, "not a function");
+ }
+ return call_func(ctx, func_obj, new_target, argc,
+ (JSValueConst *)argv, flags);
+ }
+
+ b = p->u.func.function_bytecode;
+ if (b->is_derived_class_constructor) {
+ return JS_CallInternal(ctx, func_obj, JS_UNDEFINED, new_target, argc, argv, flags);
+ } else {
+ JSValue obj, ret;
+ /* legacy constructor behavior */
+ obj = js_create_from_ctor(ctx, new_target, JS_CLASS_OBJECT);
+ if (JS_IsException(obj))
+ return JS_EXCEPTION;
+ ret = JS_CallInternal(ctx, func_obj, obj, new_target, argc, argv, flags);
+ if (JS_VALUE_GET_TAG(ret) == JS_TAG_OBJECT ||
+ JS_IsException(ret)) {
+ JS_FreeValue(ctx, obj);
+ return ret;
+ } else {
+ JS_FreeValue(ctx, ret);
+ return obj;
+ }
+ }
+}
+
+JSValue JS_CallConstructor2(JSContext *ctx, JSValueConst func_obj,
+ JSValueConst new_target,
+ int argc, JSValueConst *argv)
+{
+ return JS_CallConstructorInternal(ctx, func_obj, new_target,
+ argc, (JSValue *)argv,
+ JS_CALL_FLAG_COPY_ARGV);
+}
+
+JSValue JS_CallConstructor(JSContext *ctx, JSValueConst func_obj,
+ int argc, JSValueConst *argv)
+{
+ return JS_CallConstructorInternal(ctx, func_obj, func_obj,
+ argc, (JSValue *)argv,
+ JS_CALL_FLAG_COPY_ARGV);
+}
+
+JSValue JS_Invoke(JSContext *ctx, JSValueConst this_val, JSAtom atom,
+ int argc, JSValueConst *argv)
+{
+ JSValue func_obj;
+ func_obj = JS_GetProperty(ctx, this_val, atom);
+ if (JS_IsException(func_obj))
+ return func_obj;
+ return JS_CallFree(ctx, func_obj, this_val, argc, argv);
+}
+
+static JSValue JS_InvokeFree(JSContext *ctx, JSValue this_val, JSAtom atom,
+ int argc, JSValueConst *argv)
+{
+ JSValue res = JS_Invoke(ctx, this_val, atom, argc, argv);
+ JS_FreeValue(ctx, this_val);
+ return res;
+}
+
+/* JSAsyncFunctionState (used by generator and async functions) */
+static JSAsyncFunctionState *async_func_init(JSContext *ctx,
+ JSValueConst func_obj, JSValueConst this_obj,
+ int argc, JSValueConst *argv)
+{
+ JSAsyncFunctionState *s;
+ JSObject *p;
+ JSFunctionBytecode *b;
+ JSStackFrame *sf;
+ int local_count, i, arg_buf_len, n;
+
+ s = js_mallocz(ctx, sizeof(*s));
+ if (!s)
+ return NULL;
+ s->header.ref_count = 1;
+ add_gc_object(ctx->rt, &s->header, JS_GC_OBJ_TYPE_ASYNC_FUNCTION);
+
+ sf = &s->frame;
+ init_list_head(&sf->var_ref_list);
+ p = JS_VALUE_GET_OBJ(func_obj);
+ b = p->u.func.function_bytecode;
+ sf->js_mode = b->js_mode | JS_MODE_ASYNC;
+ sf->cur_pc = b->byte_code_buf;
+ arg_buf_len = max_int(b->arg_count, argc);
+ local_count = arg_buf_len + b->var_count + b->stack_size;
+ sf->arg_buf = js_malloc(ctx, sizeof(JSValue) * max_int(local_count, 1));
+ if (!sf->arg_buf) {
+ js_free(ctx, s);
+ return NULL;
+ }
+ sf->cur_func = JS_DupValue(ctx, func_obj);
+ s->this_val = JS_DupValue(ctx, this_obj);
+ s->argc = argc;
+ sf->arg_count = arg_buf_len;
+ sf->var_buf = sf->arg_buf + arg_buf_len;
+ sf->cur_sp = sf->var_buf + b->var_count;
+ for(i = 0; i < argc; i++)
+ sf->arg_buf[i] = JS_DupValue(ctx, argv[i]);
+ n = arg_buf_len + b->var_count;
+ for(i = argc; i < n; i++)
+ sf->arg_buf[i] = JS_UNDEFINED;
+ s->resolving_funcs[0] = JS_UNDEFINED;
+ s->resolving_funcs[1] = JS_UNDEFINED;
+ s->is_completed = FALSE;
+ return s;
+}
+
+static void async_func_free_frame(JSRuntime *rt, JSAsyncFunctionState *s)
+{
+ JSStackFrame *sf = &s->frame;
+ JSValue *sp;
+
+ if (sf->arg_buf) {
+ /* cannot free the function if it is running */
+ assert(sf->cur_sp != NULL);
+ for(sp = sf->arg_buf; sp < sf->cur_sp; sp++) {
+ JS_FreeValueRT(rt, *sp);
+ }
+ js_free_rt(rt, sf->arg_buf);
+ sf->arg_buf = NULL;
+ }
+ JS_FreeValueRT(rt, sf->cur_func);
+ JS_FreeValueRT(rt, s->this_val);
+}
+
+static JSValue async_func_resume(JSContext *ctx, JSAsyncFunctionState *s)
+{
+ JSRuntime *rt = ctx->rt;
+ JSStackFrame *sf = &s->frame;
+ JSValue func_obj, ret;
+
+ assert(!s->is_completed);
+ if (js_check_stack_overflow(ctx->rt, 0)) {
+ ret = JS_ThrowStackOverflow(ctx);
+ } else {
+ /* the tag does not matter provided it is not an object */
+ func_obj = JS_MKPTR(JS_TAG_INT, s);
+ ret = JS_CallInternal(ctx, func_obj, s->this_val, JS_UNDEFINED,
+ s->argc, sf->arg_buf, JS_CALL_FLAG_GENERATOR);
+ }
+ if (JS_IsException(ret) || JS_IsUndefined(ret)) {
+ if (JS_IsUndefined(ret)) {
+ ret = sf->cur_sp[-1];
+ sf->cur_sp[-1] = JS_UNDEFINED;
+ }
+ /* end of execution */
+ s->is_completed = TRUE;
+
+ /* close the closure variables. */
+ close_var_refs(rt, sf);
+
+ async_func_free_frame(rt, s);
+ }
+ return ret;
+}
+
+static void __async_func_free(JSRuntime *rt, JSAsyncFunctionState *s)
+{
+ /* cannot close the closure variables here because it would
+ potentially modify the object graph */
+ if (!s->is_completed) {
+ async_func_free_frame(rt, s);
+ }
+
+ JS_FreeValueRT(rt, s->resolving_funcs[0]);
+ JS_FreeValueRT(rt, s->resolving_funcs[1]);
+
+ remove_gc_object(&s->header);
+ if (rt->gc_phase == JS_GC_PHASE_REMOVE_CYCLES && s->header.ref_count != 0) {
+ list_add_tail(&s->header.link, &rt->gc_zero_ref_count_list);
+ } else {
+ js_free_rt(rt, s);
+ }
+}
+
+static void async_func_free(JSRuntime *rt, JSAsyncFunctionState *s)
+{
+ if (--s->header.ref_count == 0) {
+ if (rt->gc_phase != JS_GC_PHASE_REMOVE_CYCLES) {
+ list_del(&s->header.link);
+ list_add(&s->header.link, &rt->gc_zero_ref_count_list);
+ if (rt->gc_phase == JS_GC_PHASE_NONE) {
+ free_zero_refcount(rt);
+ }
+ }
+ }
+}
+
+/* Generators */
+
+typedef enum JSGeneratorStateEnum {
+ JS_GENERATOR_STATE_SUSPENDED_START,
+ JS_GENERATOR_STATE_SUSPENDED_YIELD,
+ JS_GENERATOR_STATE_SUSPENDED_YIELD_STAR,
+ JS_GENERATOR_STATE_EXECUTING,
+ JS_GENERATOR_STATE_COMPLETED,
+} JSGeneratorStateEnum;
+
+typedef struct JSGeneratorData {
+ JSGeneratorStateEnum state;
+ JSAsyncFunctionState *func_state;
+} JSGeneratorData;
+
+static void free_generator_stack_rt(JSRuntime *rt, JSGeneratorData *s)
+{
+ if (s->state == JS_GENERATOR_STATE_COMPLETED)
+ return;
+ if (s->func_state) {
+ async_func_free(rt, s->func_state);
+ s->func_state = NULL;
+ }
+ s->state = JS_GENERATOR_STATE_COMPLETED;
+}
+
+static void js_generator_finalizer(JSRuntime *rt, JSValue obj)
+{
+ JSGeneratorData *s = JS_GetOpaque(obj, JS_CLASS_GENERATOR);
+
+ if (s) {
+ free_generator_stack_rt(rt, s);
+ js_free_rt(rt, s);
+ }
+}
+
+static void free_generator_stack(JSContext *ctx, JSGeneratorData *s)
+{
+ free_generator_stack_rt(ctx->rt, s);
+}
+
+static void js_generator_mark(JSRuntime *rt, JSValueConst val,
+ JS_MarkFunc *mark_func)
+{
+ JSObject *p = JS_VALUE_GET_OBJ(val);
+ JSGeneratorData *s = p->u.generator_data;
+
+ if (!s || !s->func_state)
+ return;
+ mark_func(rt, &s->func_state->header);
+}
+
+/* XXX: use enum */
+#define GEN_MAGIC_NEXT 0
+#define GEN_MAGIC_RETURN 1
+#define GEN_MAGIC_THROW 2
+
+static JSValue js_generator_next(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv,
+ BOOL *pdone, int magic)
+{
+ JSGeneratorData *s = JS_GetOpaque(this_val, JS_CLASS_GENERATOR);
+ JSStackFrame *sf;
+ JSValue ret, func_ret;
+
+ *pdone = TRUE;
+ if (!s)
+ return JS_ThrowTypeError(ctx, "not a generator");
+ switch(s->state) {
+ default:
+ case JS_GENERATOR_STATE_SUSPENDED_START:
+ sf = &s->func_state->frame;
+ if (magic == GEN_MAGIC_NEXT) {
+ goto exec_no_arg;
+ } else {
+ free_generator_stack(ctx, s);
+ goto done;
+ }
+ break;
+ case JS_GENERATOR_STATE_SUSPENDED_YIELD_STAR:
+ case JS_GENERATOR_STATE_SUSPENDED_YIELD:
+ sf = &s->func_state->frame;
+ /* cur_sp[-1] was set to JS_UNDEFINED in the previous call */
+ ret = JS_DupValue(ctx, argv[0]);
+ if (magic == GEN_MAGIC_THROW &&
+ s->state == JS_GENERATOR_STATE_SUSPENDED_YIELD) {
+ JS_Throw(ctx, ret);
+ s->func_state->throw_flag = TRUE;
+ } else {
+ sf->cur_sp[-1] = ret;
+ sf->cur_sp[0] = JS_NewInt32(ctx, magic);
+ sf->cur_sp++;
+ exec_no_arg:
+ s->func_state->throw_flag = FALSE;
+ }
+ s->state = JS_GENERATOR_STATE_EXECUTING;
+ func_ret = async_func_resume(ctx, s->func_state);
+ s->state = JS_GENERATOR_STATE_SUSPENDED_YIELD;
+ if (s->func_state->is_completed) {
+ /* finalize the execution in case of exception or normal return */
+ free_generator_stack(ctx, s);
+ return func_ret;
+ } else {
+ assert(JS_VALUE_GET_TAG(func_ret) == JS_TAG_INT);
+ /* get the returned yield value at the top of the stack */
+ ret = sf->cur_sp[-1];
+ sf->cur_sp[-1] = JS_UNDEFINED;
+ if (JS_VALUE_GET_INT(func_ret) == FUNC_RET_YIELD_STAR) {
+ s->state = JS_GENERATOR_STATE_SUSPENDED_YIELD_STAR;
+ /* return (value, done) object */
+ *pdone = 2;
+ } else {
+ *pdone = FALSE;
+ }
+ }
+ break;
+ case JS_GENERATOR_STATE_COMPLETED:
+ done:
+ /* execution is finished */
+ switch(magic) {
+ default:
+ case GEN_MAGIC_NEXT:
+ ret = JS_UNDEFINED;
+ break;
+ case GEN_MAGIC_RETURN:
+ ret = JS_DupValue(ctx, argv[0]);
+ break;
+ case GEN_MAGIC_THROW:
+ ret = JS_Throw(ctx, JS_DupValue(ctx, argv[0]));
+ break;
+ }
+ break;
+ case JS_GENERATOR_STATE_EXECUTING:
+ ret = JS_ThrowTypeError(ctx, "cannot invoke a running generator");
+ break;
+ }
+ return ret;
+}
+
+static JSValue js_generator_function_call(JSContext *ctx, JSValueConst func_obj,
+ JSValueConst this_obj,
+ int argc, JSValueConst *argv,
+ int flags)
+{
+ JSValue obj, func_ret;
+ JSGeneratorData *s;
+
+ s = js_mallocz(ctx, sizeof(*s));
+ if (!s)
+ return JS_EXCEPTION;
+ s->state = JS_GENERATOR_STATE_SUSPENDED_START;
+ s->func_state = async_func_init(ctx, func_obj, this_obj, argc, argv);
+ if (!s->func_state) {
+ s->state = JS_GENERATOR_STATE_COMPLETED;
+ goto fail;
+ }
+
+ /* execute the function up to 'OP_initial_yield' */
+ func_ret = async_func_resume(ctx, s->func_state);
+ if (JS_IsException(func_ret))
+ goto fail;
+ JS_FreeValue(ctx, func_ret);
+
+ obj = js_create_from_ctor(ctx, func_obj, JS_CLASS_GENERATOR);
+ if (JS_IsException(obj))
+ goto fail;
+ JS_SetOpaque(obj, s);
+ return obj;
+ fail:
+ free_generator_stack_rt(ctx->rt, s);
+ js_free(ctx, s);
+ return JS_EXCEPTION;
+}
+
+/* AsyncFunction */
+
+static void js_async_function_resolve_finalizer(JSRuntime *rt, JSValue val)
+{
+ JSObject *p = JS_VALUE_GET_OBJ(val);
+ JSAsyncFunctionState *s = p->u.async_function_data;
+ if (s) {
+ async_func_free(rt, s);
+ }
+}
+
+static void js_async_function_resolve_mark(JSRuntime *rt, JSValueConst val,
+ JS_MarkFunc *mark_func)
+{
+ JSObject *p = JS_VALUE_GET_OBJ(val);
+ JSAsyncFunctionState *s = p->u.async_function_data;
+ if (s) {
+ mark_func(rt, &s->header);
+ }
+}
+
+static int js_async_function_resolve_create(JSContext *ctx,
+ JSAsyncFunctionState *s,
+ JSValue *resolving_funcs)
+{
+ int i;
+ JSObject *p;
+
+ for(i = 0; i < 2; i++) {
+ resolving_funcs[i] =
+ JS_NewObjectProtoClass(ctx, ctx->function_proto,
+ JS_CLASS_ASYNC_FUNCTION_RESOLVE + i);
+ if (JS_IsException(resolving_funcs[i])) {
+ if (i == 1)
+ JS_FreeValue(ctx, resolving_funcs[0]);
+ return -1;
+ }
+ p = JS_VALUE_GET_OBJ(resolving_funcs[i]);
+ s->header.ref_count++;
+ p->u.async_function_data = s;
+ }
+ return 0;
+}
+
+static void js_async_function_resume(JSContext *ctx, JSAsyncFunctionState *s)
+{
+ JSValue func_ret, ret2;
+
+ func_ret = async_func_resume(ctx, s);
+ if (s->is_completed) {
+ if (JS_IsException(func_ret)) {
+ JSValue error;
+ fail:
+ error = JS_GetException(ctx);
+ ret2 = JS_Call(ctx, s->resolving_funcs[1], JS_UNDEFINED,
+ 1, (JSValueConst *)&error);
+ JS_FreeValue(ctx, error);
+ JS_FreeValue(ctx, ret2); /* XXX: what to do if exception ? */
+ } else {
+ /* normal return */
+ ret2 = JS_Call(ctx, s->resolving_funcs[0], JS_UNDEFINED,
+ 1, (JSValueConst *)&func_ret);
+ JS_FreeValue(ctx, func_ret);
+ JS_FreeValue(ctx, ret2); /* XXX: what to do if exception ? */
+ }
+ } else {
+ JSValue value, promise, resolving_funcs[2], resolving_funcs1[2];
+ int i, res;
+
+ value = s->frame.cur_sp[-1];
+ s->frame.cur_sp[-1] = JS_UNDEFINED;
+
+ /* await */
+ JS_FreeValue(ctx, func_ret); /* not used */
+ promise = js_promise_resolve(ctx, ctx->promise_ctor,
+ 1, (JSValueConst *)&value, 0);
+ JS_FreeValue(ctx, value);
+ if (JS_IsException(promise))
+ goto fail;
+ if (js_async_function_resolve_create(ctx, s, resolving_funcs)) {
+ JS_FreeValue(ctx, promise);
+ goto fail;
+ }
+
+ /* Note: no need to create 'thrownawayCapability' as in
+ the spec */
+ for(i = 0; i < 2; i++)
+ resolving_funcs1[i] = JS_UNDEFINED;
+ res = perform_promise_then(ctx, promise,
+ (JSValueConst *)resolving_funcs,
+ (JSValueConst *)resolving_funcs1);
+ JS_FreeValue(ctx, promise);
+ for(i = 0; i < 2; i++)
+ JS_FreeValue(ctx, resolving_funcs[i]);
+ if (res)
+ goto fail;
+ }
+}
+
+static JSValue js_async_function_resolve_call(JSContext *ctx,
+ JSValueConst func_obj,
+ JSValueConst this_obj,
+ int argc, JSValueConst *argv,
+ int flags)
+{
+ JSObject *p = JS_VALUE_GET_OBJ(func_obj);
+ JSAsyncFunctionState *s = p->u.async_function_data;
+ BOOL is_reject = p->class_id - JS_CLASS_ASYNC_FUNCTION_RESOLVE;
+ JSValueConst arg;
+
+ if (argc > 0)
+ arg = argv[0];
+ else
+ arg = JS_UNDEFINED;
+ s->throw_flag = is_reject;
+ if (is_reject) {
+ JS_Throw(ctx, JS_DupValue(ctx, arg));
+ } else {
+ /* return value of await */
+ s->frame.cur_sp[-1] = JS_DupValue(ctx, arg);
+ }
+ js_async_function_resume(ctx, s);
+ return JS_UNDEFINED;
+}
+
+static JSValue js_async_function_call(JSContext *ctx, JSValueConst func_obj,
+ JSValueConst this_obj,
+ int argc, JSValueConst *argv, int flags)
+{
+ JSValue promise;
+ JSAsyncFunctionState *s;
+
+ s = async_func_init(ctx, func_obj, this_obj, argc, argv);
+ if (!s)
+ return JS_EXCEPTION;
+
+ promise = JS_NewPromiseCapability(ctx, s->resolving_funcs);
+ if (JS_IsException(promise)) {
+ async_func_free(ctx->rt, s);
+ return JS_EXCEPTION;
+ }
+
+ js_async_function_resume(ctx, s);
+
+ async_func_free(ctx->rt, s);
+
+ return promise;
+}
+
+/* AsyncGenerator */
+
+typedef enum JSAsyncGeneratorStateEnum {
+ JS_ASYNC_GENERATOR_STATE_SUSPENDED_START,
+ JS_ASYNC_GENERATOR_STATE_SUSPENDED_YIELD,
+ JS_ASYNC_GENERATOR_STATE_SUSPENDED_YIELD_STAR,
+ JS_ASYNC_GENERATOR_STATE_EXECUTING,
+ JS_ASYNC_GENERATOR_STATE_AWAITING_RETURN,
+ JS_ASYNC_GENERATOR_STATE_COMPLETED,
+} JSAsyncGeneratorStateEnum;
+
+typedef struct JSAsyncGeneratorRequest {
+ struct list_head link;
+ /* completion */
+ int completion_type; /* GEN_MAGIC_x */
+ JSValue result;
+ /* promise capability */
+ JSValue promise;
+ JSValue resolving_funcs[2];
+} JSAsyncGeneratorRequest;
+
+typedef struct JSAsyncGeneratorData {
+ JSObject *generator; /* back pointer to the object (const) */
+ JSAsyncGeneratorStateEnum state;
+ /* func_state is NULL is state AWAITING_RETURN and COMPLETED */
+ JSAsyncFunctionState *func_state;
+ struct list_head queue; /* list of JSAsyncGeneratorRequest.link */
+} JSAsyncGeneratorData;
+
+static void js_async_generator_free(JSRuntime *rt,
+ JSAsyncGeneratorData *s)
+{
+ struct list_head *el, *el1;
+ JSAsyncGeneratorRequest *req;
+
+ list_for_each_safe(el, el1, &s->queue) {
+ req = list_entry(el, JSAsyncGeneratorRequest, link);
+ JS_FreeValueRT(rt, req->result);
+ JS_FreeValueRT(rt, req->promise);
+ JS_FreeValueRT(rt, req->resolving_funcs[0]);
+ JS_FreeValueRT(rt, req->resolving_funcs[1]);
+ js_free_rt(rt, req);
+ }
+ if (s->func_state)
+ async_func_free(rt, s->func_state);
+ js_free_rt(rt, s);
+}
+
+static void js_async_generator_finalizer(JSRuntime *rt, JSValue obj)
+{
+ JSAsyncGeneratorData *s = JS_GetOpaque(obj, JS_CLASS_ASYNC_GENERATOR);
+
+ if (s) {
+ js_async_generator_free(rt, s);
+ }
+}
+
+static void js_async_generator_mark(JSRuntime *rt, JSValueConst val,
+ JS_MarkFunc *mark_func)
+{
+ JSAsyncGeneratorData *s = JS_GetOpaque(val, JS_CLASS_ASYNC_GENERATOR);
+ struct list_head *el;
+ JSAsyncGeneratorRequest *req;
+ if (s) {
+ list_for_each(el, &s->queue) {
+ req = list_entry(el, JSAsyncGeneratorRequest, link);
+ JS_MarkValue(rt, req->result, mark_func);
+ JS_MarkValue(rt, req->promise, mark_func);
+ JS_MarkValue(rt, req->resolving_funcs[0], mark_func);
+ JS_MarkValue(rt, req->resolving_funcs[1], mark_func);
+ }
+ if (s->func_state) {
+ mark_func(rt, &s->func_state->header);
+ }
+ }
+}
+
+static JSValue js_async_generator_resolve_function(JSContext *ctx,
+ JSValueConst this_obj,
+ int argc, JSValueConst *argv,
+ int magic, JSValue *func_data);
+
+static int js_async_generator_resolve_function_create(JSContext *ctx,
+ JSValueConst generator,
+ JSValue *resolving_funcs,
+ BOOL is_resume_next)
+{
+ int i;
+ JSValue func;
+
+ for(i = 0; i < 2; i++) {
+ func = JS_NewCFunctionData(ctx, js_async_generator_resolve_function, 1,
+ i + is_resume_next * 2, 1, &generator);
+ if (JS_IsException(func)) {
+ if (i == 1)
+ JS_FreeValue(ctx, resolving_funcs[0]);
+ return -1;
+ }
+ resolving_funcs[i] = func;
+ }
+ return 0;
+}
+
+static int js_async_generator_await(JSContext *ctx,
+ JSAsyncGeneratorData *s,
+ JSValueConst value)
+{
+ JSValue promise, resolving_funcs[2], resolving_funcs1[2];
+ int i, res;
+
+ promise = js_promise_resolve(ctx, ctx->promise_ctor,
+ 1, &value, 0);
+ if (JS_IsException(promise))
+ goto fail;
+
+ if (js_async_generator_resolve_function_create(ctx, JS_MKPTR(JS_TAG_OBJECT, s->generator),
+ resolving_funcs, FALSE)) {
+ JS_FreeValue(ctx, promise);
+ goto fail;
+ }
+
+ /* Note: no need to create 'thrownawayCapability' as in
+ the spec */
+ for(i = 0; i < 2; i++)
+ resolving_funcs1[i] = JS_UNDEFINED;
+ res = perform_promise_then(ctx, promise,
+ (JSValueConst *)resolving_funcs,
+ (JSValueConst *)resolving_funcs1);
+ JS_FreeValue(ctx, promise);
+ for(i = 0; i < 2; i++)
+ JS_FreeValue(ctx, resolving_funcs[i]);
+ if (res)
+ goto fail;
+ return 0;
+ fail:
+ return -1;
+}
+
+static void js_async_generator_resolve_or_reject(JSContext *ctx,
+ JSAsyncGeneratorData *s,
+ JSValueConst result,
+ int is_reject)
+{
+ JSAsyncGeneratorRequest *next;
+ JSValue ret;
+
+ next = list_entry(s->queue.next, JSAsyncGeneratorRequest, link);
+ list_del(&next->link);
+ ret = JS_Call(ctx, next->resolving_funcs[is_reject], JS_UNDEFINED, 1,
+ &result);
+ JS_FreeValue(ctx, ret);
+ JS_FreeValue(ctx, next->result);
+ JS_FreeValue(ctx, next->promise);
+ JS_FreeValue(ctx, next->resolving_funcs[0]);
+ JS_FreeValue(ctx, next->resolving_funcs[1]);
+ js_free(ctx, next);
+}
+
+static void js_async_generator_resolve(JSContext *ctx,
+ JSAsyncGeneratorData *s,
+ JSValueConst value,
+ BOOL done)
+{
+ JSValue result;
+ result = js_create_iterator_result(ctx, JS_DupValue(ctx, value), done);
+ /* XXX: better exception handling ? */
+ js_async_generator_resolve_or_reject(ctx, s, result, 0);
+ JS_FreeValue(ctx, result);
+ }
+
+static void js_async_generator_reject(JSContext *ctx,
+ JSAsyncGeneratorData *s,
+ JSValueConst exception)
+{
+ js_async_generator_resolve_or_reject(ctx, s, exception, 1);
+}
+
+static void js_async_generator_complete(JSContext *ctx,
+ JSAsyncGeneratorData *s)
+{
+ if (s->state != JS_ASYNC_GENERATOR_STATE_COMPLETED) {
+ s->state = JS_ASYNC_GENERATOR_STATE_COMPLETED;
+ async_func_free(ctx->rt, s->func_state);
+ s->func_state = NULL;
+ }
+}
+
+static int js_async_generator_completed_return(JSContext *ctx,
+ JSAsyncGeneratorData *s,
+ JSValueConst value)
+{
+ JSValue promise, resolving_funcs[2], resolving_funcs1[2];
+ int res;
+
+ // Can fail looking up JS_ATOM_constructor when is_reject==0.
+ promise = js_promise_resolve(ctx, ctx->promise_ctor, 1, &value,
+ /*is_reject*/0);
+ // A poisoned .constructor property is observable and the resulting
+ // exception should be delivered to the catch handler.
+ if (JS_IsException(promise)) {
+ JSValue err = JS_GetException(ctx);
+ promise = js_promise_resolve(ctx, ctx->promise_ctor, 1, (JSValueConst *)&err,
+ /*is_reject*/1);
+ JS_FreeValue(ctx, err);
+ if (JS_IsException(promise))
+ return -1;
+ }
+ if (js_async_generator_resolve_function_create(ctx,
+ JS_MKPTR(JS_TAG_OBJECT, s->generator),
+ resolving_funcs1,
+ TRUE)) {
+ JS_FreeValue(ctx, promise);
+ return -1;
+ }
+ resolving_funcs[0] = JS_UNDEFINED;
+ resolving_funcs[1] = JS_UNDEFINED;
+ res = perform_promise_then(ctx, promise,
+ (JSValueConst *)resolving_funcs1,
+ (JSValueConst *)resolving_funcs);
+ JS_FreeValue(ctx, resolving_funcs1[0]);
+ JS_FreeValue(ctx, resolving_funcs1[1]);
+ JS_FreeValue(ctx, promise);
+ return res;
+}
+
+static void js_async_generator_resume_next(JSContext *ctx,
+ JSAsyncGeneratorData *s)
+{
+ JSAsyncGeneratorRequest *next;
+ JSValue func_ret, value;
+
+ for(;;) {
+ if (list_empty(&s->queue))
+ break;
+ next = list_entry(s->queue.next, JSAsyncGeneratorRequest, link);
+ switch(s->state) {
+ case JS_ASYNC_GENERATOR_STATE_EXECUTING:
+ /* only happens when restarting execution after await() */
+ goto resume_exec;
+ case JS_ASYNC_GENERATOR_STATE_AWAITING_RETURN:
+ goto done;
+ case JS_ASYNC_GENERATOR_STATE_SUSPENDED_START:
+ if (next->completion_type == GEN_MAGIC_NEXT) {
+ goto exec_no_arg;
+ } else {
+ js_async_generator_complete(ctx, s);
+ }
+ break;
+ case JS_ASYNC_GENERATOR_STATE_COMPLETED:
+ if (next->completion_type == GEN_MAGIC_NEXT) {
+ js_async_generator_resolve(ctx, s, JS_UNDEFINED, TRUE);
+ } else if (next->completion_type == GEN_MAGIC_RETURN) {
+ s->state = JS_ASYNC_GENERATOR_STATE_AWAITING_RETURN;
+ js_async_generator_completed_return(ctx, s, next->result);
+ } else {
+ js_async_generator_reject(ctx, s, next->result);
+ }
+ goto done;
+ case JS_ASYNC_GENERATOR_STATE_SUSPENDED_YIELD:
+ case JS_ASYNC_GENERATOR_STATE_SUSPENDED_YIELD_STAR:
+ value = JS_DupValue(ctx, next->result);
+ if (next->completion_type == GEN_MAGIC_THROW &&
+ s->state == JS_ASYNC_GENERATOR_STATE_SUSPENDED_YIELD) {
+ JS_Throw(ctx, value);
+ s->func_state->throw_flag = TRUE;
+ } else {
+ /* 'yield' returns a value. 'yield *' also returns a value
+ in case the 'throw' method is called */
+ s->func_state->frame.cur_sp[-1] = value;
+ s->func_state->frame.cur_sp[0] =
+ JS_NewInt32(ctx, next->completion_type);
+ s->func_state->frame.cur_sp++;
+ exec_no_arg:
+ s->func_state->throw_flag = FALSE;
+ }
+ s->state = JS_ASYNC_GENERATOR_STATE_EXECUTING;
+ resume_exec:
+ func_ret = async_func_resume(ctx, s->func_state);
+ if (s->func_state->is_completed) {
+ if (JS_IsException(func_ret)) {
+ value = JS_GetException(ctx);
+ js_async_generator_complete(ctx, s);
+ js_async_generator_reject(ctx, s, value);
+ JS_FreeValue(ctx, value);
+ } else {
+ /* end of function */
+ js_async_generator_complete(ctx, s);
+ js_async_generator_resolve(ctx, s, func_ret, TRUE);
+ JS_FreeValue(ctx, func_ret);
+ }
+ } else {
+ int func_ret_code, ret;
+ assert(JS_VALUE_GET_TAG(func_ret) == JS_TAG_INT);
+ func_ret_code = JS_VALUE_GET_INT(func_ret);
+ value = s->func_state->frame.cur_sp[-1];
+ s->func_state->frame.cur_sp[-1] = JS_UNDEFINED;
+ switch(func_ret_code) {
+ case FUNC_RET_YIELD:
+ case FUNC_RET_YIELD_STAR:
+ if (func_ret_code == FUNC_RET_YIELD_STAR)
+ s->state = JS_ASYNC_GENERATOR_STATE_SUSPENDED_YIELD_STAR;
+ else
+ s->state = JS_ASYNC_GENERATOR_STATE_SUSPENDED_YIELD;
+ js_async_generator_resolve(ctx, s, value, FALSE);
+ JS_FreeValue(ctx, value);
+ break;
+ case FUNC_RET_AWAIT:
+ ret = js_async_generator_await(ctx, s, value);
+ JS_FreeValue(ctx, value);
+ if (ret < 0) {
+ /* exception: throw it */
+ s->func_state->throw_flag = TRUE;
+ goto resume_exec;
+ }
+ goto done;
+ default:
+ abort();
+ }
+ }
+ break;
+ default:
+ abort();
+ }
+ }
+ done: ;
+}
+
+static JSValue js_async_generator_resolve_function(JSContext *ctx,
+ JSValueConst this_obj,
+ int argc, JSValueConst *argv,
+ int magic, JSValue *func_data)
+{
+ BOOL is_reject = magic & 1;
+ JSAsyncGeneratorData *s = JS_GetOpaque(func_data[0], JS_CLASS_ASYNC_GENERATOR);
+ JSValueConst arg = argv[0];
+
+ /* XXX: what if s == NULL */
+
+ if (magic >= 2) {
+ /* resume next case in AWAITING_RETURN state */
+ assert(s->state == JS_ASYNC_GENERATOR_STATE_AWAITING_RETURN ||
+ s->state == JS_ASYNC_GENERATOR_STATE_COMPLETED);
+ s->state = JS_ASYNC_GENERATOR_STATE_COMPLETED;
+ if (is_reject) {
+ js_async_generator_reject(ctx, s, arg);
+ } else {
+ js_async_generator_resolve(ctx, s, arg, TRUE);
+ }
+ } else {
+ /* restart function execution after await() */
+ assert(s->state == JS_ASYNC_GENERATOR_STATE_EXECUTING);
+ s->func_state->throw_flag = is_reject;
+ if (is_reject) {
+ JS_Throw(ctx, JS_DupValue(ctx, arg));
+ } else {
+ /* return value of await */
+ s->func_state->frame.cur_sp[-1] = JS_DupValue(ctx, arg);
+ }
+ js_async_generator_resume_next(ctx, s);
+ }
+ return JS_UNDEFINED;
+}
+
+/* magic = GEN_MAGIC_x */
+static JSValue js_async_generator_next(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv,
+ int magic)
+{
+ JSAsyncGeneratorData *s = JS_GetOpaque(this_val, JS_CLASS_ASYNC_GENERATOR);
+ JSValue promise, resolving_funcs[2];
+ JSAsyncGeneratorRequest *req;
+
+ promise = JS_NewPromiseCapability(ctx, resolving_funcs);
+ if (JS_IsException(promise))
+ return JS_EXCEPTION;
+ if (!s) {
+ JSValue err, res2;
+ JS_ThrowTypeError(ctx, "not an AsyncGenerator object");
+ err = JS_GetException(ctx);
+ res2 = JS_Call(ctx, resolving_funcs[1], JS_UNDEFINED,
+ 1, (JSValueConst *)&err);
+ JS_FreeValue(ctx, err);
+ JS_FreeValue(ctx, res2);
+ JS_FreeValue(ctx, resolving_funcs[0]);
+ JS_FreeValue(ctx, resolving_funcs[1]);
+ return promise;
+ }
+ req = js_mallocz(ctx, sizeof(*req));
+ if (!req)
+ goto fail;
+ req->completion_type = magic;
+ req->result = JS_DupValue(ctx, argv[0]);
+ req->promise = JS_DupValue(ctx, promise);
+ req->resolving_funcs[0] = resolving_funcs[0];
+ req->resolving_funcs[1] = resolving_funcs[1];
+ list_add_tail(&req->link, &s->queue);
+ if (s->state != JS_ASYNC_GENERATOR_STATE_EXECUTING) {
+ js_async_generator_resume_next(ctx, s);
+ }
+ return promise;
+ fail:
+ JS_FreeValue(ctx, resolving_funcs[0]);
+ JS_FreeValue(ctx, resolving_funcs[1]);
+ JS_FreeValue(ctx, promise);
+ return JS_EXCEPTION;
+}
+
+static JSValue js_async_generator_function_call(JSContext *ctx, JSValueConst func_obj,
+ JSValueConst this_obj,
+ int argc, JSValueConst *argv,
+ int flags)
+{
+ JSValue obj, func_ret;
+ JSAsyncGeneratorData *s;
+
+ s = js_mallocz(ctx, sizeof(*s));
+ if (!s)
+ return JS_EXCEPTION;
+ s->state = JS_ASYNC_GENERATOR_STATE_SUSPENDED_START;
+ init_list_head(&s->queue);
+ s->func_state = async_func_init(ctx, func_obj, this_obj, argc, argv);
+ if (!s->func_state)
+ goto fail;
+ /* execute the function up to 'OP_initial_yield' (no yield nor
+ await are possible) */
+ func_ret = async_func_resume(ctx, s->func_state);
+ if (JS_IsException(func_ret))
+ goto fail;
+ JS_FreeValue(ctx, func_ret);
+
+ obj = js_create_from_ctor(ctx, func_obj, JS_CLASS_ASYNC_GENERATOR);
+ if (JS_IsException(obj))
+ goto fail;
+ s->generator = JS_VALUE_GET_OBJ(obj);
+ JS_SetOpaque(obj, s);
+ return obj;
+ fail:
+ js_async_generator_free(ctx->rt, s);
+ return JS_EXCEPTION;
+}
+
+/* JS parser */
+
+enum {
+ TOK_NUMBER = -128,
+ TOK_STRING,
+ TOK_TEMPLATE,
+ TOK_IDENT,
+ TOK_REGEXP,
+ /* warning: order matters (see js_parse_assign_expr) */
+ TOK_MUL_ASSIGN,
+ TOK_DIV_ASSIGN,
+ TOK_MOD_ASSIGN,
+ TOK_PLUS_ASSIGN,
+ TOK_MINUS_ASSIGN,
+ TOK_SHL_ASSIGN,
+ TOK_SAR_ASSIGN,
+ TOK_SHR_ASSIGN,
+ TOK_AND_ASSIGN,
+ TOK_XOR_ASSIGN,
+ TOK_OR_ASSIGN,
+#ifdef CONFIG_BIGNUM
+ TOK_MATH_POW_ASSIGN,
+#endif
+ TOK_POW_ASSIGN,
+ TOK_LAND_ASSIGN,
+ TOK_LOR_ASSIGN,
+ TOK_DOUBLE_QUESTION_MARK_ASSIGN,
+ TOK_DEC,
+ TOK_INC,
+ TOK_SHL,
+ TOK_SAR,
+ TOK_SHR,
+ TOK_LT,
+ TOK_LTE,
+ TOK_GT,
+ TOK_GTE,
+ TOK_EQ,
+ TOK_STRICT_EQ,
+ TOK_NEQ,
+ TOK_STRICT_NEQ,
+ TOK_LAND,
+ TOK_LOR,
+#ifdef CONFIG_BIGNUM
+ TOK_MATH_POW,
+#endif
+ TOK_POW,
+ TOK_ARROW,
+ TOK_ELLIPSIS,
+ TOK_DOUBLE_QUESTION_MARK,
+ TOK_QUESTION_MARK_DOT,
+ TOK_ERROR,
+ TOK_PRIVATE_NAME,
+ TOK_EOF,
+ /* keywords: WARNING: same order as atoms */
+ TOK_NULL, /* must be first */
+ TOK_FALSE,
+ TOK_TRUE,
+ TOK_IF,
+ TOK_ELSE,
+ TOK_RETURN,
+ TOK_VAR,
+ TOK_THIS,
+ TOK_DELETE,
+ TOK_VOID,
+ TOK_TYPEOF,
+ TOK_NEW,
+ TOK_IN,
+ TOK_INSTANCEOF,
+ TOK_DO,
+ TOK_WHILE,
+ TOK_FOR,
+ TOK_BREAK,
+ TOK_CONTINUE,
+ TOK_SWITCH,
+ TOK_CASE,
+ TOK_DEFAULT,
+ TOK_THROW,
+ TOK_TRY,
+ TOK_CATCH,
+ TOK_FINALLY,
+ TOK_FUNCTION,
+ TOK_DEBUGGER,
+ TOK_WITH,
+ /* FutureReservedWord */
+ TOK_CLASS,
+ TOK_CONST,
+ TOK_ENUM,
+ TOK_EXPORT,
+ TOK_EXTENDS,
+ TOK_IMPORT,
+ TOK_SUPER,
+ /* FutureReservedWords when parsing strict mode code */
+ TOK_IMPLEMENTS,
+ TOK_INTERFACE,
+ TOK_LET,
+ TOK_PACKAGE,
+ TOK_PRIVATE,
+ TOK_PROTECTED,
+ TOK_PUBLIC,
+ TOK_STATIC,
+ TOK_YIELD,
+ TOK_AWAIT, /* must be last */
+ TOK_OF, /* only used for js_parse_skip_parens_token() */
+};
+
+#define TOK_FIRST_KEYWORD TOK_NULL
+#define TOK_LAST_KEYWORD TOK_AWAIT
+
+/* unicode code points */
+#define CP_NBSP 0x00a0
+#define CP_BOM 0xfeff
+
+#define CP_LS 0x2028
+#define CP_PS 0x2029
+
+typedef struct BlockEnv {
+ struct BlockEnv *prev;
+ JSAtom label_name; /* JS_ATOM_NULL if none */
+ int label_break; /* -1 if none */
+ int label_cont; /* -1 if none */
+ int drop_count; /* number of stack elements to drop */
+ int label_finally; /* -1 if none */
+ int scope_level;
+ int has_iterator;
+} BlockEnv;
+
+typedef struct JSGlobalVar {
+ int cpool_idx; /* if >= 0, index in the constant pool for hoisted
+ function defintion*/
+ uint8_t force_init : 1; /* force initialization to undefined */
+ uint8_t is_lexical : 1; /* global let/const definition */
+ uint8_t is_const : 1; /* const definition */
+ int scope_level; /* scope of definition */
+ JSAtom var_name; /* variable name */
+} JSGlobalVar;
+
+typedef struct RelocEntry {
+ struct RelocEntry *next;
+ uint32_t addr; /* address to patch */
+ int size; /* address size: 1, 2 or 4 bytes */
+} RelocEntry;
+
+typedef struct JumpSlot {
+ int op;
+ int size;
+ int pos;
+ int label;
+} JumpSlot;
+
+typedef struct LabelSlot {
+ int ref_count;
+ int pos; /* phase 1 address, -1 means not resolved yet */
+ int pos2; /* phase 2 address, -1 means not resolved yet */
+ int addr; /* phase 3 address, -1 means not resolved yet */
+ RelocEntry *first_reloc;
+} LabelSlot;
+
+typedef struct LineNumberSlot {
+ uint32_t pc;
+ int line_num;
+} LineNumberSlot;
+
+typedef enum JSParseFunctionEnum {
+ JS_PARSE_FUNC_STATEMENT,
+ JS_PARSE_FUNC_VAR,
+ JS_PARSE_FUNC_EXPR,
+ JS_PARSE_FUNC_ARROW,
+ JS_PARSE_FUNC_GETTER,
+ JS_PARSE_FUNC_SETTER,
+ JS_PARSE_FUNC_METHOD,
+ JS_PARSE_FUNC_CLASS_STATIC_INIT,
+ JS_PARSE_FUNC_CLASS_CONSTRUCTOR,
+ JS_PARSE_FUNC_DERIVED_CLASS_CONSTRUCTOR,
+} JSParseFunctionEnum;
+
+typedef enum JSParseExportEnum {
+ JS_PARSE_EXPORT_NONE,
+ JS_PARSE_EXPORT_NAMED,
+ JS_PARSE_EXPORT_DEFAULT,
+} JSParseExportEnum;
+
+typedef struct JSFunctionDef {
+ JSContext *ctx;
+ struct JSFunctionDef *parent;
+ int parent_cpool_idx; /* index in the constant pool of the parent
+ or -1 if none */
+ int parent_scope_level; /* scope level in parent at point of definition */
+ struct list_head child_list; /* list of JSFunctionDef.link */
+ struct list_head link;
+
+ BOOL is_eval; /* TRUE if eval code */
+ int eval_type; /* only valid if is_eval = TRUE */
+ BOOL is_global_var; /* TRUE if variables are not defined locally:
+ eval global, eval module or non strict eval */
+ BOOL is_func_expr; /* TRUE if function expression */
+ BOOL has_home_object; /* TRUE if the home object is available */
+ BOOL has_prototype; /* true if a prototype field is necessary */
+ BOOL has_simple_parameter_list;
+ BOOL has_parameter_expressions; /* if true, an argument scope is created */
+ BOOL has_use_strict; /* to reject directive in special cases */
+ BOOL has_eval_call; /* true if the function contains a call to eval() */
+ BOOL has_arguments_binding; /* true if the 'arguments' binding is
+ available in the function */
+ BOOL has_this_binding; /* true if the 'this' and new.target binding are
+ available in the function */
+ BOOL new_target_allowed; /* true if the 'new.target' does not
+ throw a syntax error */
+ BOOL super_call_allowed; /* true if super() is allowed */
+ BOOL super_allowed; /* true if super. or super[] is allowed */
+ BOOL arguments_allowed; /* true if the 'arguments' identifier is allowed */
+ BOOL is_derived_class_constructor;
+ BOOL in_function_body;
+ BOOL backtrace_barrier;
+ JSFunctionKindEnum func_kind : 8;
+ JSParseFunctionEnum func_type : 8;
+ uint8_t js_mode; /* bitmap of JS_MODE_x */
+ JSAtom func_name; /* JS_ATOM_NULL if no name */
+
+ JSVarDef *vars;
+ int var_size; /* allocated size for vars[] */
+ int var_count;
+ JSVarDef *args;
+ int arg_size; /* allocated size for args[] */
+ int arg_count; /* number of arguments */
+ int defined_arg_count;
+ int var_object_idx; /* -1 if none */
+ int arg_var_object_idx; /* -1 if none (var object for the argument scope) */
+ int arguments_var_idx; /* -1 if none */
+ int arguments_arg_idx; /* argument variable definition in argument scope,
+ -1 if none */
+ int func_var_idx; /* variable containing the current function (-1
+ if none, only used if is_func_expr is true) */
+ int eval_ret_idx; /* variable containing the return value of the eval, -1 if none */
+ int this_var_idx; /* variable containg the 'this' value, -1 if none */
+ int new_target_var_idx; /* variable containg the 'new.target' value, -1 if none */
+ int this_active_func_var_idx; /* variable containg the 'this.active_func' value, -1 if none */
+ int home_object_var_idx;
+ BOOL need_home_object;
+
+ int scope_level; /* index into fd->scopes if the current lexical scope */
+ int scope_first; /* index into vd->vars of first lexically scoped variable */
+ int scope_size; /* allocated size of fd->scopes array */
+ int scope_count; /* number of entries used in the fd->scopes array */
+ JSVarScope *scopes;
+ JSVarScope def_scope_array[4];
+ int body_scope; /* scope of the body of the function or eval */
+
+ int global_var_count;
+ int global_var_size;
+ JSGlobalVar *global_vars;
+
+ DynBuf byte_code;
+ int last_opcode_pos; /* -1 if no last opcode */
+ int last_opcode_line_num;
+ BOOL use_short_opcodes; /* true if short opcodes are used in byte_code */
+
+ LabelSlot *label_slots;
+ int label_size; /* allocated size for label_slots[] */
+ int label_count;
+ BlockEnv *top_break; /* break/continue label stack */
+
+ /* constant pool (strings, functions, numbers) */
+ JSValue *cpool;
+ int cpool_count;
+ int cpool_size;
+
+ /* list of variables in the closure */
+ int closure_var_count;
+ int closure_var_size;
+ JSClosureVar *closure_var;
+
+ JumpSlot *jump_slots;
+ int jump_size;
+ int jump_count;
+
+ LineNumberSlot *line_number_slots;
+ int line_number_size;
+ int line_number_count;
+ int line_number_last;
+ int line_number_last_pc;
+
+ /* pc2line table */
+ JSAtom filename;
+ int line_num;
+ DynBuf pc2line;
+
+ char *source; /* raw source, utf-8 encoded */
+ int source_len;
+
+ JSModuleDef *module; /* != NULL when parsing a module */
+ BOOL has_await; /* TRUE if await is used (used in module eval) */
+} JSFunctionDef;
+
+typedef struct JSToken {
+ int val;
+ int line_num; /* line number of token start */
+ const uint8_t *ptr;
+ union {
+ struct {
+ JSValue str;
+ int sep;
+ } str;
+ struct {
+ JSValue val;
+#ifdef CONFIG_BIGNUM
+ slimb_t exponent; /* may be != 0 only if val is a float */
+#endif
+ } num;
+ struct {
+ JSAtom atom;
+ BOOL has_escape;
+ BOOL is_reserved;
+ } ident;
+ struct {
+ JSValue body;
+ JSValue flags;
+ } regexp;
+ } u;
+} JSToken;
+
+typedef struct JSParseState {
+ JSContext *ctx;
+ int last_line_num; /* line number of last token */
+ int line_num; /* line number of current offset */
+ const char *filename;
+ JSToken token;
+ BOOL got_lf; /* true if got line feed before the current token */
+ const uint8_t *last_ptr;
+ const uint8_t *buf_ptr;
+ const uint8_t *buf_end;
+
+ /* current function code */
+ JSFunctionDef *cur_func;
+ BOOL is_module; /* parsing a module */
+ BOOL allow_html_comments;
+ BOOL ext_json; /* true if accepting JSON superset */
+} JSParseState;
+
+typedef struct JSOpCode {
+#ifdef DUMP_BYTECODE
+ const char *name;
+#endif
+ uint8_t size; /* in bytes */
+ /* the opcodes remove n_pop items from the top of the stack, then
+ pushes n_push items */
+ uint8_t n_pop;
+ uint8_t n_push;
+ uint8_t fmt;
+} JSOpCode;
+
+static const JSOpCode opcode_info[OP_COUNT + (OP_TEMP_END - OP_TEMP_START)] = {
+#define FMT(f)
+#ifdef DUMP_BYTECODE
+#define DEF(id, size, n_pop, n_push, f) { #id, size, n_pop, n_push, OP_FMT_ ## f },
+#else
+#define DEF(id, size, n_pop, n_push, f) { size, n_pop, n_push, OP_FMT_ ## f },
+#endif
+#include "quickjs-opcode.h"
+#undef DEF
+#undef FMT
+};
+
+#if SHORT_OPCODES
+/* After the final compilation pass, short opcodes are used. Their
+ opcodes overlap with the temporary opcodes which cannot appear in
+ the final bytecode. Their description is after the temporary
+ opcodes in opcode_info[]. */
+#define short_opcode_info(op) \
+ opcode_info[(op) >= OP_TEMP_START ? \
+ (op) + (OP_TEMP_END - OP_TEMP_START) : (op)]
+#else
+#define short_opcode_info(op) opcode_info[op]
+#endif
+
+static __exception int next_token(JSParseState *s);
+
+static void free_token(JSParseState *s, JSToken *token)
+{
+ switch(token->val) {
+ case TOK_NUMBER:
+ JS_FreeValue(s->ctx, token->u.num.val);
+ break;
+ case TOK_STRING:
+ case TOK_TEMPLATE:
+ JS_FreeValue(s->ctx, token->u.str.str);
+ break;
+ case TOK_REGEXP:
+ JS_FreeValue(s->ctx, token->u.regexp.body);
+ JS_FreeValue(s->ctx, token->u.regexp.flags);
+ break;
+ case TOK_IDENT:
+ case TOK_PRIVATE_NAME:
+ JS_FreeAtom(s->ctx, token->u.ident.atom);
+ break;
+ default:
+ if (token->val >= TOK_FIRST_KEYWORD &&
+ token->val <= TOK_LAST_KEYWORD) {
+ JS_FreeAtom(s->ctx, token->u.ident.atom);
+ }
+ break;
+ }
+}
+
+static void __attribute((unused)) dump_token(JSParseState *s,
+ const JSToken *token)
+{
+ switch(token->val) {
+ case TOK_NUMBER:
+ {
+ double d;
+ JS_ToFloat64(s->ctx, &d, token->u.num.val); /* no exception possible */
+ printf("number: %.14g\n", d);
+ }
+ break;
+ case TOK_IDENT:
+ dump_atom:
+ {
+ char buf[ATOM_GET_STR_BUF_SIZE];
+ printf("ident: '%s'\n",
+ JS_AtomGetStr(s->ctx, buf, sizeof(buf), token->u.ident.atom));
+ }
+ break;
+ case TOK_STRING:
+ {
+ const char *str;
+ /* XXX: quote the string */
+ str = JS_ToCString(s->ctx, token->u.str.str);
+ printf("string: '%s'\n", str);
+ JS_FreeCString(s->ctx, str);
+ }
+ break;
+ case TOK_TEMPLATE:
+ {
+ const char *str;
+ str = JS_ToCString(s->ctx, token->u.str.str);
+ printf("template: `%s`\n", str);
+ JS_FreeCString(s->ctx, str);
+ }
+ break;
+ case TOK_REGEXP:
+ {
+ const char *str, *str2;
+ str = JS_ToCString(s->ctx, token->u.regexp.body);
+ str2 = JS_ToCString(s->ctx, token->u.regexp.flags);
+ printf("regexp: '%s' '%s'\n", str, str2);
+ JS_FreeCString(s->ctx, str);
+ JS_FreeCString(s->ctx, str2);
+ }
+ break;
+ case TOK_EOF:
+ printf("eof\n");
+ break;
+ default:
+ if (s->token.val >= TOK_NULL && s->token.val <= TOK_LAST_KEYWORD) {
+ goto dump_atom;
+ } else if (s->token.val >= 256) {
+ printf("token: %d\n", token->val);
+ } else {
+ printf("token: '%c'\n", token->val);
+ }
+ break;
+ }
+}
+
+int __attribute__((format(printf, 2, 3))) js_parse_error(JSParseState *s, const char *fmt, ...)
+{
+ JSContext *ctx = s->ctx;
+ va_list ap;
+ int backtrace_flags;
+
+ va_start(ap, fmt);
+ JS_ThrowError2(ctx, JS_SYNTAX_ERROR, fmt, ap, FALSE);
+ va_end(ap);
+ backtrace_flags = 0;
+ if (s->cur_func && s->cur_func->backtrace_barrier)
+ backtrace_flags = JS_BACKTRACE_FLAG_SINGLE_LEVEL;
+ build_backtrace(ctx, ctx->rt->current_exception, s->filename, s->line_num,
+ backtrace_flags);
+ return -1;
+}
+
+static int js_parse_expect(JSParseState *s, int tok)
+{
+ if (s->token.val != tok) {
+ /* XXX: dump token correctly in all cases */
+ return js_parse_error(s, "expecting '%c'", tok);
+ }
+ return next_token(s);
+}
+
+static int js_parse_expect_semi(JSParseState *s)
+{
+ if (s->token.val != ';') {
+ /* automatic insertion of ';' */
+ if (s->token.val == TOK_EOF || s->token.val == '}' || s->got_lf) {
+ return 0;
+ }
+ return js_parse_error(s, "expecting '%c'", ';');
+ }
+ return next_token(s);
+}
+
+static int js_parse_error_reserved_identifier(JSParseState *s)
+{
+ char buf1[ATOM_GET_STR_BUF_SIZE];
+ return js_parse_error(s, "'%s' is a reserved identifier",
+ JS_AtomGetStr(s->ctx, buf1, sizeof(buf1),
+ s->token.u.ident.atom));
+}
+
+static __exception int js_parse_template_part(JSParseState *s, const uint8_t *p)
+{
+ uint32_t c;
+ StringBuffer b_s, *b = &b_s;
+
+ /* p points to the first byte of the template part */
+ if (string_buffer_init(s->ctx, b, 32))
+ goto fail;
+ for(;;) {
+ if (p >= s->buf_end)
+ goto unexpected_eof;
+ c = *p++;
+ if (c == '`') {
+ /* template end part */
+ break;
+ }
+ if (c == '$' && *p == '{') {
+ /* template start or middle part */
+ p++;
+ break;
+ }
+ if (c == '\\') {
+ if (string_buffer_putc8(b, c))
+ goto fail;
+ if (p >= s->buf_end)
+ goto unexpected_eof;
+ c = *p++;
+ }
+ /* newline sequences are normalized as single '\n' bytes */
+ if (c == '\r') {
+ if (*p == '\n')
+ p++;
+ c = '\n';
+ }
+ if (c == '\n') {
+ s->line_num++;
+ } else if (c >= 0x80) {
+ const uint8_t *p_next;
+ c = unicode_from_utf8(p - 1, UTF8_CHAR_LEN_MAX, &p_next);
+ if (c > 0x10FFFF) {
+ js_parse_error(s, "invalid UTF-8 sequence");
+ goto fail;
+ }
+ p = p_next;
+ }
+ if (string_buffer_putc(b, c))
+ goto fail;
+ }
+ s->token.val = TOK_TEMPLATE;
+ s->token.u.str.sep = c;
+ s->token.u.str.str = string_buffer_end(b);
+ s->buf_ptr = p;
+ return 0;
+
+ unexpected_eof:
+ js_parse_error(s, "unexpected end of string");
+ fail:
+ string_buffer_free(b);
+ return -1;
+}
+
+static __exception int js_parse_string(JSParseState *s, int sep,
+ BOOL do_throw, const uint8_t *p,
+ JSToken *token, const uint8_t **pp)
+{
+ int ret;
+ uint32_t c;
+ StringBuffer b_s, *b = &b_s;
+
+ /* string */
+ if (string_buffer_init(s->ctx, b, 32))
+ goto fail;
+ for(;;) {
+ if (p >= s->buf_end)
+ goto invalid_char;
+ c = *p;
+ if (c < 0x20) {
+ if (!s->cur_func) {
+ if (do_throw)
+ js_parse_error(s, "invalid character in a JSON string");
+ goto fail;
+ }
+ if (sep == '`') {
+ if (c == '\r') {
+ if (p[1] == '\n')
+ p++;
+ c = '\n';
+ }
+ /* do not update s->line_num */
+ } else if (c == '\n' || c == '\r')
+ goto invalid_char;
+ }
+ p++;
+ if (c == sep)
+ break;
+ if (c == '$' && *p == '{' && sep == '`') {
+ /* template start or middle part */
+ p++;
+ break;
+ }
+ if (c == '\\') {
+ c = *p;
+ /* XXX: need a specific JSON case to avoid
+ accepting invalid escapes */
+ switch(c) {
+ case '\0':
+ if (p >= s->buf_end)
+ goto invalid_char;
+ p++;
+ break;
+ case '\'':
+ case '\"':
+ case '\\':
+ p++;
+ break;
+ case '\r': /* accept DOS and MAC newline sequences */
+ if (p[1] == '\n') {
+ p++;
+ }
+ /* fall thru */
+ case '\n':
+ /* ignore escaped newline sequence */
+ p++;
+ if (sep != '`')
+ s->line_num++;
+ continue;
+ default:
+ if (c >= '0' && c <= '9') {
+ if (!s->cur_func)
+ goto invalid_escape; /* JSON case */
+ if (!(s->cur_func->js_mode & JS_MODE_STRICT) && sep != '`')
+ goto parse_escape;
+ if (c == '0' && !(p[1] >= '0' && p[1] <= '9')) {
+ p++;
+ c = '\0';
+ } else {
+ if (c >= '8' || sep == '`') {
+ /* Note: according to ES2021, \8 and \9 are not
+ accepted in strict mode or in templates. */
+ goto invalid_escape;
+ } else {
+ if (do_throw)
+ js_parse_error(s, "octal escape sequences are not allowed in strict mode");
+ }
+ goto fail;
+ }
+ } else if (c >= 0x80) {
+ const uint8_t *p_next;
+ c = unicode_from_utf8(p, UTF8_CHAR_LEN_MAX, &p_next);
+ if (c > 0x10FFFF) {
+ goto invalid_utf8;
+ }
+ p = p_next;
+ /* LS or PS are skipped */
+ if (c == CP_LS || c == CP_PS)
+ continue;
+ } else {
+ parse_escape:
+ ret = lre_parse_escape(&p, TRUE);
+ if (ret == -1) {
+ invalid_escape:
+ if (do_throw)
+ js_parse_error(s, "malformed escape sequence in string literal");
+ goto fail;
+ } else if (ret < 0) {
+ /* ignore the '\' (could output a warning) */
+ p++;
+ } else {
+ c = ret;
+ }
+ }
+ break;
+ }
+ } else if (c >= 0x80) {
+ const uint8_t *p_next;
+ c = unicode_from_utf8(p - 1, UTF8_CHAR_LEN_MAX, &p_next);
+ if (c > 0x10FFFF)
+ goto invalid_utf8;
+ p = p_next;
+ }
+ if (string_buffer_putc(b, c))
+ goto fail;
+ }
+ token->val = TOK_STRING;
+ token->u.str.sep = c;
+ token->u.str.str = string_buffer_end(b);
+ *pp = p;
+ return 0;
+
+ invalid_utf8:
+ if (do_throw)
+ js_parse_error(s, "invalid UTF-8 sequence");
+ goto fail;
+ invalid_char:
+ if (do_throw)
+ js_parse_error(s, "unexpected end of string");
+ fail:
+ string_buffer_free(b);
+ return -1;
+}
+
+static inline BOOL token_is_pseudo_keyword(JSParseState *s, JSAtom atom) {
+ return s->token.val == TOK_IDENT && s->token.u.ident.atom == atom &&
+ !s->token.u.ident.has_escape;
+}
+
+static __exception int js_parse_regexp(JSParseState *s)
+{
+ const uint8_t *p;
+ BOOL in_class;
+ StringBuffer b_s, *b = &b_s;
+ StringBuffer b2_s, *b2 = &b2_s;
+ uint32_t c;
+
+ p = s->buf_ptr;
+ p++;
+ in_class = FALSE;
+ if (string_buffer_init(s->ctx, b, 32))
+ return -1;
+ if (string_buffer_init(s->ctx, b2, 1))
+ goto fail;
+ for(;;) {
+ if (p >= s->buf_end) {
+ eof_error:
+ js_parse_error(s, "unexpected end of regexp");
+ goto fail;
+ }
+ c = *p++;
+ if (c == '\n' || c == '\r') {
+ goto eol_error;
+ } else if (c == '/') {
+ if (!in_class)
+ break;
+ } else if (c == '[') {
+ in_class = TRUE;
+ } else if (c == ']') {
+ /* XXX: incorrect as the first character in a class */
+ in_class = FALSE;
+ } else if (c == '\\') {
+ if (string_buffer_putc8(b, c))
+ goto fail;
+ c = *p++;
+ if (c == '\n' || c == '\r')
+ goto eol_error;
+ else if (c == '\0' && p >= s->buf_end)
+ goto eof_error;
+ else if (c >= 0x80) {
+ const uint8_t *p_next;
+ c = unicode_from_utf8(p - 1, UTF8_CHAR_LEN_MAX, &p_next);
+ if (c > 0x10FFFF) {
+ goto invalid_utf8;
+ }
+ p = p_next;
+ if (c == CP_LS || c == CP_PS)
+ goto eol_error;
+ }
+ } else if (c >= 0x80) {
+ const uint8_t *p_next;
+ c = unicode_from_utf8(p - 1, UTF8_CHAR_LEN_MAX, &p_next);
+ if (c > 0x10FFFF) {
+ invalid_utf8:
+ js_parse_error(s, "invalid UTF-8 sequence");
+ goto fail;
+ }
+ p = p_next;
+ /* LS or PS are considered as line terminator */
+ if (c == CP_LS || c == CP_PS) {
+ eol_error:
+ js_parse_error(s, "unexpected line terminator in regexp");
+ goto fail;
+ }
+ }
+ if (string_buffer_putc(b, c))
+ goto fail;
+ }
+
+ /* flags */
+ for(;;) {
+ const uint8_t *p_next = p;
+ c = *p_next++;
+ if (c >= 0x80) {
+ c = unicode_from_utf8(p, UTF8_CHAR_LEN_MAX, &p_next);
+ if (c > 0x10FFFF) {
+ goto invalid_utf8;
+ }
+ }
+ if (!lre_js_is_ident_next(c))
+ break;
+ if (string_buffer_putc(b2, c))
+ goto fail;
+ p = p_next;
+ }
+
+ s->token.val = TOK_REGEXP;
+ s->token.u.regexp.body = string_buffer_end(b);
+ s->token.u.regexp.flags = string_buffer_end(b2);
+ s->buf_ptr = p;
+ return 0;
+ fail:
+ string_buffer_free(b);
+ string_buffer_free(b2);
+ return -1;
+}
+
+static __exception int ident_realloc(JSContext *ctx, char **pbuf, size_t *psize,
+ char *static_buf)
+{
+ char *buf, *new_buf;
+ size_t size, new_size;
+
+ buf = *pbuf;
+ size = *psize;
+ if (size >= (SIZE_MAX / 3) * 2)
+ new_size = SIZE_MAX;
+ else
+ new_size = size + (size >> 1);
+ if (buf == static_buf) {
+ new_buf = js_malloc(ctx, new_size);
+ if (!new_buf)
+ return -1;
+ memcpy(new_buf, buf, size);
+ } else {
+ new_buf = js_realloc(ctx, buf, new_size);
+ if (!new_buf)
+ return -1;
+ }
+ *pbuf = new_buf;
+ *psize = new_size;
+ return 0;
+}
+
+/* convert a TOK_IDENT to a keyword when needed */
+static void update_token_ident(JSParseState *s)
+{
+ if (s->token.u.ident.atom <= JS_ATOM_LAST_KEYWORD ||
+ (s->token.u.ident.atom <= JS_ATOM_LAST_STRICT_KEYWORD &&
+ (s->cur_func->js_mode & JS_MODE_STRICT)) ||
+ (s->token.u.ident.atom == JS_ATOM_yield &&
+ ((s->cur_func->func_kind & JS_FUNC_GENERATOR) ||
+ (s->cur_func->func_type == JS_PARSE_FUNC_ARROW &&
+ !s->cur_func->in_function_body && s->cur_func->parent &&
+ (s->cur_func->parent->func_kind & JS_FUNC_GENERATOR)))) ||
+ (s->token.u.ident.atom == JS_ATOM_await &&
+ (s->is_module ||
+ (s->cur_func->func_kind & JS_FUNC_ASYNC) ||
+ s->cur_func->func_type == JS_PARSE_FUNC_CLASS_STATIC_INIT ||
+ (s->cur_func->func_type == JS_PARSE_FUNC_ARROW &&
+ !s->cur_func->in_function_body && s->cur_func->parent &&
+ ((s->cur_func->parent->func_kind & JS_FUNC_ASYNC) ||
+ s->cur_func->parent->func_type == JS_PARSE_FUNC_CLASS_STATIC_INIT))))) {
+ if (s->token.u.ident.has_escape) {
+ s->token.u.ident.is_reserved = TRUE;
+ s->token.val = TOK_IDENT;
+ } else {
+ /* The keywords atoms are pre allocated */
+ s->token.val = s->token.u.ident.atom - 1 + TOK_FIRST_KEYWORD;
+ }
+ }
+}
+
+/* if the current token is an identifier or keyword, reparse it
+ according to the current function type */
+static void reparse_ident_token(JSParseState *s)
+{
+ if (s->token.val == TOK_IDENT ||
+ (s->token.val >= TOK_FIRST_KEYWORD &&
+ s->token.val <= TOK_LAST_KEYWORD)) {
+ s->token.val = TOK_IDENT;
+ s->token.u.ident.is_reserved = FALSE;
+ update_token_ident(s);
+ }
+}
+
+/* 'c' is the first character. Return JS_ATOM_NULL in case of error */
+static JSAtom parse_ident(JSParseState *s, const uint8_t **pp,
+ BOOL *pident_has_escape, int c, BOOL is_private)
+{
+ const uint8_t *p, *p1;
+ char ident_buf[128], *buf;
+ size_t ident_size, ident_pos;
+ JSAtom atom;
+
+ p = *pp;
+ buf = ident_buf;
+ ident_size = sizeof(ident_buf);
+ ident_pos = 0;
+ if (is_private)
+ buf[ident_pos++] = '#';
+ for(;;) {
+ p1 = p;
+
+ if (c < 128) {
+ buf[ident_pos++] = c;
+ } else {
+ ident_pos += unicode_to_utf8((uint8_t*)buf + ident_pos, c);
+ }
+ c = *p1++;
+ if (c == '\\' && *p1 == 'u') {
+ c = lre_parse_escape(&p1, TRUE);
+ *pident_has_escape = TRUE;
+ } else if (c >= 128) {
+ c = unicode_from_utf8(p, UTF8_CHAR_LEN_MAX, &p1);
+ }
+ if (!lre_js_is_ident_next(c))
+ break;
+ p = p1;
+ if (unlikely(ident_pos >= ident_size - UTF8_CHAR_LEN_MAX)) {
+ if (ident_realloc(s->ctx, &buf, &ident_size, ident_buf)) {
+ atom = JS_ATOM_NULL;
+ goto done;
+ }
+ }
+ }
+ atom = JS_NewAtomLen(s->ctx, buf, ident_pos);
+ done:
+ if (unlikely(buf != ident_buf))
+ js_free(s->ctx, buf);
+ *pp = p;
+ return atom;
+}
+
+
+static __exception int next_token(JSParseState *s)
+{
+ const uint8_t *p;
+ int c;
+ BOOL ident_has_escape;
+ JSAtom atom;
+
+ if (js_check_stack_overflow(s->ctx->rt, 0)) {
+ return js_parse_error(s, "stack overflow");
+ }
+
+ free_token(s, &s->token);
+
+ p = s->last_ptr = s->buf_ptr;
+ s->got_lf = FALSE;
+ s->last_line_num = s->token.line_num;
+ redo:
+ s->token.line_num = s->line_num;
+ s->token.ptr = p;
+ c = *p;
+ switch(c) {
+ case 0:
+ if (p >= s->buf_end) {
+ s->token.val = TOK_EOF;
+ } else {
+ goto def_token;
+ }
+ break;
+ case '`':
+ if (js_parse_template_part(s, p + 1))
+ goto fail;
+ p = s->buf_ptr;
+ break;
+ case '\'':
+ case '\"':
+ if (js_parse_string(s, c, TRUE, p + 1, &s->token, &p))
+ goto fail;
+ break;
+ case '\r': /* accept DOS and MAC newline sequences */
+ if (p[1] == '\n') {
+ p++;
+ }
+ /* fall thru */
+ case '\n':
+ p++;
+ line_terminator:
+ s->got_lf = TRUE;
+ s->line_num++;
+ goto redo;
+ case '\f':
+ case '\v':
+ case ' ':
+ case '\t':
+ p++;
+ goto redo;
+ case '/':
+ if (p[1] == '*') {
+ /* comment */
+ p += 2;
+ for(;;) {
+ if (*p == '\0' && p >= s->buf_end) {
+ js_parse_error(s, "unexpected end of comment");
+ goto fail;
+ }
+ if (p[0] == '*' && p[1] == '/') {
+ p += 2;
+ break;
+ }
+ if (*p == '\n') {
+ s->line_num++;
+ s->got_lf = TRUE; /* considered as LF for ASI */
+ p++;
+ } else if (*p == '\r') {
+ s->got_lf = TRUE; /* considered as LF for ASI */
+ p++;
+ } else if (*p >= 0x80) {
+ c = unicode_from_utf8(p, UTF8_CHAR_LEN_MAX, &p);
+ if (c == CP_LS || c == CP_PS) {
+ s->got_lf = TRUE; /* considered as LF for ASI */
+ } else if (c == -1) {
+ p++; /* skip invalid UTF-8 */
+ }
+ } else {
+ p++;
+ }
+ }
+ goto redo;
+ } else if (p[1] == '/') {
+ /* line comment */
+ p += 2;
+ skip_line_comment:
+ for(;;) {
+ if (*p == '\0' && p >= s->buf_end)
+ break;
+ if (*p == '\r' || *p == '\n')
+ break;
+ if (*p >= 0x80) {
+ c = unicode_from_utf8(p, UTF8_CHAR_LEN_MAX, &p);
+ /* LS or PS are considered as line terminator */
+ if (c == CP_LS || c == CP_PS) {
+ break;
+ } else if (c == -1) {
+ p++; /* skip invalid UTF-8 */
+ }
+ } else {
+ p++;
+ }
+ }
+ goto redo;
+ } else if (p[1] == '=') {
+ p += 2;
+ s->token.val = TOK_DIV_ASSIGN;
+ } else {
+ p++;
+ s->token.val = c;
+ }
+ break;
+ case '\\':
+ if (p[1] == 'u') {
+ const uint8_t *p1 = p + 1;
+ int c1 = lre_parse_escape(&p1, TRUE);
+ if (c1 >= 0 && lre_js_is_ident_first(c1)) {
+ c = c1;
+ p = p1;
+ ident_has_escape = TRUE;
+ goto has_ident;
+ } else {
+ /* XXX: syntax error? */
+ }
+ }
+ goto def_token;
+ case 'a': case 'b': case 'c': case 'd':
+ case 'e': case 'f': case 'g': case 'h':
+ case 'i': case 'j': case 'k': case 'l':
+ case 'm': case 'n': case 'o': case 'p':
+ case 'q': case 'r': case 's': case 't':
+ case 'u': case 'v': case 'w': case 'x':
+ case 'y': case 'z':
+ case 'A': case 'B': case 'C': case 'D':
+ case 'E': case 'F': case 'G': case 'H':
+ case 'I': case 'J': case 'K': case 'L':
+ case 'M': case 'N': case 'O': case 'P':
+ case 'Q': case 'R': case 'S': case 'T':
+ case 'U': case 'V': case 'W': case 'X':
+ case 'Y': case 'Z':
+ case '_':
+ case '$':
+ /* identifier */
+ p++;
+ ident_has_escape = FALSE;
+ has_ident:
+ atom = parse_ident(s, &p, &ident_has_escape, c, FALSE);
+ if (atom == JS_ATOM_NULL)
+ goto fail;
+ s->token.u.ident.atom = atom;
+ s->token.u.ident.has_escape = ident_has_escape;
+ s->token.u.ident.is_reserved = FALSE;
+ s->token.val = TOK_IDENT;
+ update_token_ident(s);
+ break;
+ case '#':
+ /* private name */
+ {
+ const uint8_t *p1;
+ p++;
+ p1 = p;
+ c = *p1++;
+ if (c == '\\' && *p1 == 'u') {
+ c = lre_parse_escape(&p1, TRUE);
+ } else if (c >= 128) {
+ c = unicode_from_utf8(p, UTF8_CHAR_LEN_MAX, &p1);
+ }
+ if (!lre_js_is_ident_first(c)) {
+ js_parse_error(s, "invalid first character of private name");
+ goto fail;
+ }
+ p = p1;
+ ident_has_escape = FALSE; /* not used */
+ atom = parse_ident(s, &p, &ident_has_escape, c, TRUE);
+ if (atom == JS_ATOM_NULL)
+ goto fail;
+ s->token.u.ident.atom = atom;
+ s->token.val = TOK_PRIVATE_NAME;
+ }
+ break;
+ case '.':
+ if (p[1] == '.' && p[2] == '.') {
+ p += 3;
+ s->token.val = TOK_ELLIPSIS;
+ break;
+ }
+ if (p[1] >= '0' && p[1] <= '9') {
+ goto parse_number;
+ } else {
+ goto def_token;
+ }
+ break;
+ case '0':
+ /* in strict mode, octal literals are not accepted */
+ if (is_digit(p[1]) && (s->cur_func->js_mode & JS_MODE_STRICT)) {
+ js_parse_error(s, "octal literals are deprecated in strict mode");
+ goto fail;
+ }
+ goto parse_number;
+ case '1': case '2': case '3': case '4':
+ case '5': case '6': case '7': case '8':
+ case '9':
+ /* number */
+ parse_number:
+ {
+ JSValue ret;
+ const uint8_t *p1;
+ int flags, radix;
+ flags = ATOD_ACCEPT_BIN_OCT | ATOD_ACCEPT_LEGACY_OCTAL |
+ ATOD_ACCEPT_UNDERSCORES;
+ flags |= ATOD_ACCEPT_SUFFIX;
+#ifdef CONFIG_BIGNUM
+ if (s->cur_func->js_mode & JS_MODE_MATH) {
+ flags |= ATOD_MODE_BIGINT;
+ if (s->cur_func->js_mode & JS_MODE_MATH)
+ flags |= ATOD_TYPE_BIG_FLOAT;
+ }
+#endif
+ radix = 0;
+#ifdef CONFIG_BIGNUM
+ s->token.u.num.exponent = 0;
+ ret = js_atof2(s->ctx, (const char *)p, (const char **)&p, radix,
+ flags, &s->token.u.num.exponent);
+#else
+ ret = js_atof(s->ctx, (const char *)p, (const char **)&p, radix,
+ flags);
+#endif
+ if (JS_IsException(ret))
+ goto fail;
+ /* reject `10instanceof Number` */
+ if (JS_VALUE_IS_NAN(ret) ||
+ lre_js_is_ident_next(unicode_from_utf8(p, UTF8_CHAR_LEN_MAX, &p1))) {
+ JS_FreeValue(s->ctx, ret);
+ js_parse_error(s, "invalid number literal");
+ goto fail;
+ }
+ s->token.val = TOK_NUMBER;
+ s->token.u.num.val = ret;
+ }
+ break;
+ case '*':
+ if (p[1] == '=') {
+ p += 2;
+ s->token.val = TOK_MUL_ASSIGN;
+ } else if (p[1] == '*') {
+ if (p[2] == '=') {
+ p += 3;
+ s->token.val = TOK_POW_ASSIGN;
+ } else {
+ p += 2;
+ s->token.val = TOK_POW;
+ }
+ } else {
+ goto def_token;
+ }
+ break;
+ case '%':
+ if (p[1] == '=') {
+ p += 2;
+ s->token.val = TOK_MOD_ASSIGN;
+ } else {
+ goto def_token;
+ }
+ break;
+ case '+':
+ if (p[1] == '=') {
+ p += 2;
+ s->token.val = TOK_PLUS_ASSIGN;
+ } else if (p[1] == '+') {
+ p += 2;
+ s->token.val = TOK_INC;
+ } else {
+ goto def_token;
+ }
+ break;
+ case '-':
+ if (p[1] == '=') {
+ p += 2;
+ s->token.val = TOK_MINUS_ASSIGN;
+ } else if (p[1] == '-') {
+ if (s->allow_html_comments &&
+ p[2] == '>' && s->last_line_num != s->line_num) {
+ /* Annex B: `-->` at beginning of line is an html comment end.
+ It extends to the end of the line.
+ */
+ goto skip_line_comment;
+ }
+ p += 2;
+ s->token.val = TOK_DEC;
+ } else {
+ goto def_token;
+ }
+ break;
+ case '<':
+ if (p[1] == '=') {
+ p += 2;
+ s->token.val = TOK_LTE;
+ } else if (p[1] == '<') {
+ if (p[2] == '=') {
+ p += 3;
+ s->token.val = TOK_SHL_ASSIGN;
+ } else {
+ p += 2;
+ s->token.val = TOK_SHL;
+ }
+ } else if (s->allow_html_comments &&
+ p[1] == '!' && p[2] == '-' && p[3] == '-') {
+ /* Annex B: handle `<!--` single line html comments */
+ goto skip_line_comment;
+ } else {
+ goto def_token;
+ }
+ break;
+ case '>':
+ if (p[1] == '=') {
+ p += 2;
+ s->token.val = TOK_GTE;
+ } else if (p[1] == '>') {
+ if (p[2] == '>') {
+ if (p[3] == '=') {
+ p += 4;
+ s->token.val = TOK_SHR_ASSIGN;
+ } else {
+ p += 3;
+ s->token.val = TOK_SHR;
+ }
+ } else if (p[2] == '=') {
+ p += 3;
+ s->token.val = TOK_SAR_ASSIGN;
+ } else {
+ p += 2;
+ s->token.val = TOK_SAR;
+ }
+ } else {
+ goto def_token;
+ }
+ break;
+ case '=':
+ if (p[1] == '=') {
+ if (p[2] == '=') {
+ p += 3;
+ s->token.val = TOK_STRICT_EQ;
+ } else {
+ p += 2;
+ s->token.val = TOK_EQ;
+ }
+ } else if (p[1] == '>') {
+ p += 2;
+ s->token.val = TOK_ARROW;
+ } else {
+ goto def_token;
+ }
+ break;
+ case '!':
+ if (p[1] == '=') {
+ if (p[2] == '=') {
+ p += 3;
+ s->token.val = TOK_STRICT_NEQ;
+ } else {
+ p += 2;
+ s->token.val = TOK_NEQ;
+ }
+ } else {
+ goto def_token;
+ }
+ break;
+ case '&':
+ if (p[1] == '=') {
+ p += 2;
+ s->token.val = TOK_AND_ASSIGN;
+ } else if (p[1] == '&') {
+ if (p[2] == '=') {
+ p += 3;
+ s->token.val = TOK_LAND_ASSIGN;
+ } else {
+ p += 2;
+ s->token.val = TOK_LAND;
+ }
+ } else {
+ goto def_token;
+ }
+ break;
+#ifdef CONFIG_BIGNUM
+ /* in math mode, '^' is the power operator. '^^' is always the
+ xor operator and '**' is always the power operator */
+ case '^':
+ if (p[1] == '=') {
+ p += 2;
+ if (s->cur_func->js_mode & JS_MODE_MATH)
+ s->token.val = TOK_MATH_POW_ASSIGN;
+ else
+ s->token.val = TOK_XOR_ASSIGN;
+ } else if (p[1] == '^') {
+ if (p[2] == '=') {
+ p += 3;
+ s->token.val = TOK_XOR_ASSIGN;
+ } else {
+ p += 2;
+ s->token.val = '^';
+ }
+ } else {
+ p++;
+ if (s->cur_func->js_mode & JS_MODE_MATH)
+ s->token.val = TOK_MATH_POW;
+ else
+ s->token.val = '^';
+ }
+ break;
+#else
+ case '^':
+ if (p[1] == '=') {
+ p += 2;
+ s->token.val = TOK_XOR_ASSIGN;
+ } else {
+ goto def_token;
+ }
+ break;
+#endif
+ case '|':
+ if (p[1] == '=') {
+ p += 2;
+ s->token.val = TOK_OR_ASSIGN;
+ } else if (p[1] == '|') {
+ if (p[2] == '=') {
+ p += 3;
+ s->token.val = TOK_LOR_ASSIGN;
+ } else {
+ p += 2;
+ s->token.val = TOK_LOR;
+ }
+ } else {
+ goto def_token;
+ }
+ break;
+ case '?':
+ if (p[1] == '?') {
+ if (p[2] == '=') {
+ p += 3;
+ s->token.val = TOK_DOUBLE_QUESTION_MARK_ASSIGN;
+ } else {
+ p += 2;
+ s->token.val = TOK_DOUBLE_QUESTION_MARK;
+ }
+ } else if (p[1] == '.' && !(p[2] >= '0' && p[2] <= '9')) {
+ p += 2;
+ s->token.val = TOK_QUESTION_MARK_DOT;
+ } else {
+ goto def_token;
+ }
+ break;
+ default:
+ if (c >= 128) {
+ /* unicode value */
+ c = unicode_from_utf8(p, UTF8_CHAR_LEN_MAX, &p);
+ switch(c) {
+ case CP_PS:
+ case CP_LS:
+ /* XXX: should avoid incrementing line_number, but
+ needed to handle HTML comments */
+ goto line_terminator;
+ default:
+ if (lre_is_space(c)) {
+ goto redo;
+ } else if (lre_js_is_ident_first(c)) {
+ ident_has_escape = FALSE;
+ goto has_ident;
+ } else {
+ js_parse_error(s, "unexpected character");
+ goto fail;
+ }
+ }
+ }
+ def_token:
+ s->token.val = c;
+ p++;
+ break;
+ }
+ s->buf_ptr = p;
+
+ // dump_token(s, &s->token);
+ return 0;
+
+ fail:
+ s->token.val = TOK_ERROR;
+ return -1;
+}
+
+/* 'c' is the first character. Return JS_ATOM_NULL in case of error */
+static JSAtom json_parse_ident(JSParseState *s, const uint8_t **pp, int c)
+{
+ const uint8_t *p;
+ char ident_buf[128], *buf;
+ size_t ident_size, ident_pos;
+ JSAtom atom;
+
+ p = *pp;
+ buf = ident_buf;
+ ident_size = sizeof(ident_buf);
+ ident_pos = 0;
+ for(;;) {
+ buf[ident_pos++] = c;
+ c = *p;
+ if (c >= 128 || !lre_is_id_continue_byte(c))
+ break;
+ p++;
+ if (unlikely(ident_pos >= ident_size - UTF8_CHAR_LEN_MAX)) {
+ if (ident_realloc(s->ctx, &buf, &ident_size, ident_buf)) {
+ atom = JS_ATOM_NULL;
+ goto done;
+ }
+ }
+ }
+ atom = JS_NewAtomLen(s->ctx, buf, ident_pos);
+ done:
+ if (unlikely(buf != ident_buf))
+ js_free(s->ctx, buf);
+ *pp = p;
+ return atom;
+}
+
+static __exception int json_next_token(JSParseState *s)
+{
+ const uint8_t *p;
+ int c;
+ JSAtom atom;
+
+ if (js_check_stack_overflow(s->ctx->rt, 0)) {
+ return js_parse_error(s, "stack overflow");
+ }
+
+ free_token(s, &s->token);
+
+ p = s->last_ptr = s->buf_ptr;
+ s->last_line_num = s->token.line_num;
+ redo:
+ s->token.line_num = s->line_num;
+ s->token.ptr = p;
+ c = *p;
+ switch(c) {
+ case 0:
+ if (p >= s->buf_end) {
+ s->token.val = TOK_EOF;
+ } else {
+ goto def_token;
+ }
+ break;
+ case '\'':
+ if (!s->ext_json) {
+ /* JSON does not accept single quoted strings */
+ goto def_token;
+ }
+ /* fall through */
+ case '\"':
+ if (js_parse_string(s, c, TRUE, p + 1, &s->token, &p))
+ goto fail;
+ break;
+ case '\r': /* accept DOS and MAC newline sequences */
+ if (p[1] == '\n') {
+ p++;
+ }
+ /* fall thru */
+ case '\n':
+ p++;
+ s->line_num++;
+ goto redo;
+ case '\f':
+ case '\v':
+ if (!s->ext_json) {
+ /* JSONWhitespace does not match <VT>, nor <FF> */
+ goto def_token;
+ }
+ /* fall through */
+ case ' ':
+ case '\t':
+ p++;
+ goto redo;
+ case '/':
+ if (!s->ext_json) {
+ /* JSON does not accept comments */
+ goto def_token;
+ }
+ if (p[1] == '*') {
+ /* comment */
+ p += 2;
+ for(;;) {
+ if (*p == '\0' && p >= s->buf_end) {
+ js_parse_error(s, "unexpected end of comment");
+ goto fail;
+ }
+ if (p[0] == '*' && p[1] == '/') {
+ p += 2;
+ break;
+ }
+ if (*p == '\n') {
+ s->line_num++;
+ p++;
+ } else if (*p == '\r') {
+ p++;
+ } else if (*p >= 0x80) {
+ c = unicode_from_utf8(p, UTF8_CHAR_LEN_MAX, &p);
+ if (c == -1) {
+ p++; /* skip invalid UTF-8 */
+ }
+ } else {
+ p++;
+ }
+ }
+ goto redo;
+ } else if (p[1] == '/') {
+ /* line comment */
+ p += 2;
+ for(;;) {
+ if (*p == '\0' && p >= s->buf_end)
+ break;
+ if (*p == '\r' || *p == '\n')
+ break;
+ if (*p >= 0x80) {
+ c = unicode_from_utf8(p, UTF8_CHAR_LEN_MAX, &p);
+ /* LS or PS are considered as line terminator */
+ if (c == CP_LS || c == CP_PS) {
+ break;
+ } else if (c == -1) {
+ p++; /* skip invalid UTF-8 */
+ }
+ } else {
+ p++;
+ }
+ }
+ goto redo;
+ } else {
+ goto def_token;
+ }
+ break;
+ case 'a': case 'b': case 'c': case 'd':
+ case 'e': case 'f': case 'g': case 'h':
+ case 'i': case 'j': case 'k': case 'l':
+ case 'm': case 'n': case 'o': case 'p':
+ case 'q': case 'r': case 's': case 't':
+ case 'u': case 'v': case 'w': case 'x':
+ case 'y': case 'z':
+ case 'A': case 'B': case 'C': case 'D':
+ case 'E': case 'F': case 'G': case 'H':
+ case 'I': case 'J': case 'K': case 'L':
+ case 'M': case 'N': case 'O': case 'P':
+ case 'Q': case 'R': case 'S': case 'T':
+ case 'U': case 'V': case 'W': case 'X':
+ case 'Y': case 'Z':
+ case '_':
+ case '$':
+ /* identifier : only pure ascii characters are accepted */
+ p++;
+ atom = json_parse_ident(s, &p, c);
+ if (atom == JS_ATOM_NULL)
+ goto fail;
+ s->token.u.ident.atom = atom;
+ s->token.u.ident.has_escape = FALSE;
+ s->token.u.ident.is_reserved = FALSE;
+ s->token.val = TOK_IDENT;
+ break;
+ case '+':
+ if (!s->ext_json || !is_digit(p[1]))
+ goto def_token;
+ goto parse_number;
+ case '0':
+ if (is_digit(p[1]))
+ goto def_token;
+ goto parse_number;
+ case '-':
+ if (!is_digit(p[1]))
+ goto def_token;
+ goto parse_number;
+ case '1': case '2': case '3': case '4':
+ case '5': case '6': case '7': case '8':
+ case '9':
+ /* number */
+ parse_number:
+ {
+ JSValue ret;
+ int flags, radix;
+ if (!s->ext_json) {
+ flags = 0;
+ radix = 10;
+ } else {
+ flags = ATOD_ACCEPT_BIN_OCT;
+ radix = 0;
+ }
+ ret = js_atof(s->ctx, (const char *)p, (const char **)&p, radix,
+ flags);
+ if (JS_IsException(ret))
+ goto fail;
+ s->token.val = TOK_NUMBER;
+ s->token.u.num.val = ret;
+ }
+ break;
+ default:
+ if (c >= 128) {
+ js_parse_error(s, "unexpected character");
+ goto fail;
+ }
+ def_token:
+ s->token.val = c;
+ p++;
+ break;
+ }
+ s->buf_ptr = p;
+
+ // dump_token(s, &s->token);
+ return 0;
+
+ fail:
+ s->token.val = TOK_ERROR;
+ return -1;
+}
+
+static int match_identifier(const uint8_t *p, const char *s) {
+ uint32_t c;
+ while (*s) {
+ if ((uint8_t)*s++ != *p++)
+ return 0;
+ }
+ c = *p;
+ if (c >= 128)
+ c = unicode_from_utf8(p, UTF8_CHAR_LEN_MAX, &p);
+ return !lre_js_is_ident_next(c);
+}
+
+/* simple_next_token() is used to check for the next token in simple cases.
+ It is only used for ':' and '=>', 'let' or 'function' look-ahead.
+ (*pp) is only set if TOK_IMPORT is returned for JS_DetectModule()
+ Whitespace and comments are skipped correctly.
+ Then the next token is analyzed, only for specific words.
+ Return values:
+ - '\n' if !no_line_terminator
+ - TOK_ARROW, TOK_IN, TOK_IMPORT, TOK_OF, TOK_EXPORT, TOK_FUNCTION
+ - TOK_IDENT is returned for other identifiers and keywords
+ - otherwise the next character or unicode codepoint is returned.
+ */
+static int simple_next_token(const uint8_t **pp, BOOL no_line_terminator)
+{
+ const uint8_t *p;
+ uint32_t c;
+
+ /* skip spaces and comments */
+ p = *pp;
+ for (;;) {
+ switch(c = *p++) {
+ case '\r':
+ case '\n':
+ if (no_line_terminator)
+ return '\n';
+ continue;
+ case ' ':
+ case '\t':
+ case '\v':
+ case '\f':
+ continue;
+ case '/':
+ if (*p == '/') {
+ if (no_line_terminator)
+ return '\n';
+ while (*p && *p != '\r' && *p != '\n')
+ p++;
+ continue;
+ }
+ if (*p == '*') {
+ while (*++p) {
+ if ((*p == '\r' || *p == '\n') && no_line_terminator)
+ return '\n';
+ if (*p == '*' && p[1] == '/') {
+ p += 2;
+ break;
+ }
+ }
+ continue;
+ }
+ break;
+ case '=':
+ if (*p == '>')
+ return TOK_ARROW;
+ break;
+ case 'i':
+ if (match_identifier(p, "n"))
+ return TOK_IN;
+ if (match_identifier(p, "mport")) {
+ *pp = p + 5;
+ return TOK_IMPORT;
+ }
+ return TOK_IDENT;
+ case 'o':
+ if (match_identifier(p, "f"))
+ return TOK_OF;
+ return TOK_IDENT;
+ case 'e':
+ if (match_identifier(p, "xport"))
+ return TOK_EXPORT;
+ return TOK_IDENT;
+ case 'f':
+ if (match_identifier(p, "unction"))
+ return TOK_FUNCTION;
+ return TOK_IDENT;
+ case '\\':
+ if (*p == 'u') {
+ if (lre_js_is_ident_first(lre_parse_escape(&p, TRUE)))
+ return TOK_IDENT;
+ }
+ break;
+ default:
+ if (c >= 128) {
+ c = unicode_from_utf8(p - 1, UTF8_CHAR_LEN_MAX, &p);
+ if (no_line_terminator && (c == CP_PS || c == CP_LS))
+ return '\n';
+ }
+ if (lre_is_space(c))
+ continue;
+ if (lre_js_is_ident_first(c))
+ return TOK_IDENT;
+ break;
+ }
+ return c;
+ }
+}
+
+static int peek_token(JSParseState *s, BOOL no_line_terminator)
+{
+ const uint8_t *p = s->buf_ptr;
+ return simple_next_token(&p, no_line_terminator);
+}
+
+static void skip_shebang(const uint8_t **pp, const uint8_t *buf_end)
+{
+ const uint8_t *p = *pp;
+ int c;
+
+ if (p[0] == '#' && p[1] == '!') {
+ p += 2;
+ while (p < buf_end) {
+ if (*p == '\n' || *p == '\r') {
+ break;
+ } else if (*p >= 0x80) {
+ c = unicode_from_utf8(p, UTF8_CHAR_LEN_MAX, &p);
+ if (c == CP_LS || c == CP_PS) {
+ break;
+ } else if (c == -1) {
+ p++; /* skip invalid UTF-8 */
+ }
+ } else {
+ p++;
+ }
+ }
+ *pp = p;
+ }
+}
+
+/* return true if 'input' contains the source of a module
+ (heuristic). 'input' must be a zero terminated.
+
+ Heuristic: skip comments and expect 'import' keyword not followed
+ by '(' or '.' or export keyword.
+*/
+BOOL JS_DetectModule(const char *input, size_t input_len)
+{
+ const uint8_t *p = (const uint8_t *)input;
+ int tok;
+
+ skip_shebang(&p, p + input_len);
+ switch(simple_next_token(&p, FALSE)) {
+ case TOK_IMPORT:
+ tok = simple_next_token(&p, FALSE);
+ return (tok != '.' && tok != '(');
+ case TOK_EXPORT:
+ return TRUE;
+ default:
+ return FALSE;
+ }
+}
+
+static inline int get_prev_opcode(JSFunctionDef *fd) {
+ if (fd->last_opcode_pos < 0)
+ return OP_invalid;
+ else
+ return fd->byte_code.buf[fd->last_opcode_pos];
+}
+
+static BOOL js_is_live_code(JSParseState *s) {
+ switch (get_prev_opcode(s->cur_func)) {
+ case OP_tail_call:
+ case OP_tail_call_method:
+ case OP_return:
+ case OP_return_undef:
+ case OP_return_async:
+ case OP_throw:
+ case OP_throw_error:
+ case OP_goto:
+#if SHORT_OPCODES
+ case OP_goto8:
+ case OP_goto16:
+#endif
+ case OP_ret:
+ return FALSE;
+ default:
+ return TRUE;
+ }
+}
+
+static void emit_u8(JSParseState *s, uint8_t val)
+{
+ dbuf_putc(&s->cur_func->byte_code, val);
+}
+
+static void emit_u16(JSParseState *s, uint16_t val)
+{
+ dbuf_put_u16(&s->cur_func->byte_code, val);
+}
+
+static void emit_u32(JSParseState *s, uint32_t val)
+{
+ dbuf_put_u32(&s->cur_func->byte_code, val);
+}
+
+static void emit_op(JSParseState *s, uint8_t val)
+{
+ JSFunctionDef *fd = s->cur_func;
+ DynBuf *bc = &fd->byte_code;
+
+ /* Use the line number of the last token used, not the next token,
+ nor the current offset in the source file.
+ */
+ if (unlikely(fd->last_opcode_line_num != s->last_line_num)) {
+ dbuf_putc(bc, OP_line_num);
+ dbuf_put_u32(bc, s->last_line_num);
+ fd->last_opcode_line_num = s->last_line_num;
+ }
+ fd->last_opcode_pos = bc->size;
+ dbuf_putc(bc, val);
+}
+
+static void emit_atom(JSParseState *s, JSAtom name)
+{
+ emit_u32(s, JS_DupAtom(s->ctx, name));
+}
+
+static int update_label(JSFunctionDef *s, int label, int delta)
+{
+ LabelSlot *ls;
+
+ assert(label >= 0 && label < s->label_count);
+ ls = &s->label_slots[label];
+ ls->ref_count += delta;
+ assert(ls->ref_count >= 0);
+ return ls->ref_count;
+}
+
+static int new_label_fd(JSFunctionDef *fd, int label)
+{
+ LabelSlot *ls;
+
+ if (label < 0) {
+ if (js_resize_array(fd->ctx, (void *)&fd->label_slots,
+ sizeof(fd->label_slots[0]),
+ &fd->label_size, fd->label_count + 1))
+ return -1;
+ label = fd->label_count++;
+ ls = &fd->label_slots[label];
+ ls->ref_count = 0;
+ ls->pos = -1;
+ ls->pos2 = -1;
+ ls->addr = -1;
+ ls->first_reloc = NULL;
+ }
+ return label;
+}
+
+static int new_label(JSParseState *s)
+{
+ return new_label_fd(s->cur_func, -1);
+}
+
+/* don't update the last opcode and don't emit line number info */
+static void emit_label_raw(JSParseState *s, int label)
+{
+ emit_u8(s, OP_label);
+ emit_u32(s, label);
+ s->cur_func->label_slots[label].pos = s->cur_func->byte_code.size;
+}
+
+/* return the label ID offset */
+static int emit_label(JSParseState *s, int label)
+{
+ if (label >= 0) {
+ emit_op(s, OP_label);
+ emit_u32(s, label);
+ s->cur_func->label_slots[label].pos = s->cur_func->byte_code.size;
+ return s->cur_func->byte_code.size - 4;
+ } else {
+ return -1;
+ }
+}
+
+/* return label or -1 if dead code */
+static int emit_goto(JSParseState *s, int opcode, int label)
+{
+ if (js_is_live_code(s)) {
+ if (label < 0)
+ label = new_label(s);
+ emit_op(s, opcode);
+ emit_u32(s, label);
+ s->cur_func->label_slots[label].ref_count++;
+ return label;
+ }
+ return -1;
+}
+
+/* return the constant pool index. 'val' is not duplicated. */
+static int cpool_add(JSParseState *s, JSValue val)
+{
+ JSFunctionDef *fd = s->cur_func;
+
+ if (js_resize_array(s->ctx, (void *)&fd->cpool, sizeof(fd->cpool[0]),
+ &fd->cpool_size, fd->cpool_count + 1))
+ return -1;
+ fd->cpool[fd->cpool_count++] = val;
+ return fd->cpool_count - 1;
+}
+
+static __exception int emit_push_const(JSParseState *s, JSValueConst val,
+ BOOL as_atom)
+{
+ int idx;
+
+ if (JS_VALUE_GET_TAG(val) == JS_TAG_STRING && as_atom) {
+ JSAtom atom;
+ /* warning: JS_NewAtomStr frees the string value */
+ JS_DupValue(s->ctx, val);
+ atom = JS_NewAtomStr(s->ctx, JS_VALUE_GET_STRING(val));
+ if (atom != JS_ATOM_NULL && !__JS_AtomIsTaggedInt(atom)) {
+ emit_op(s, OP_push_atom_value);
+ emit_u32(s, atom);
+ return 0;
+ }
+ }
+
+ idx = cpool_add(s, JS_DupValue(s->ctx, val));
+ if (idx < 0)
+ return -1;
+ emit_op(s, OP_push_const);
+ emit_u32(s, idx);
+ return 0;
+}
+
+/* return the variable index or -1 if not found,
+ add ARGUMENT_VAR_OFFSET for argument variables */
+static int find_arg(JSContext *ctx, JSFunctionDef *fd, JSAtom name)
+{
+ int i;
+ for(i = fd->arg_count; i-- > 0;) {
+ if (fd->args[i].var_name == name)
+ return i | ARGUMENT_VAR_OFFSET;
+ }
+ return -1;
+}
+
+static int find_var(JSContext *ctx, JSFunctionDef *fd, JSAtom name)
+{
+ int i;
+ for(i = fd->var_count; i-- > 0;) {
+ if (fd->vars[i].var_name == name && fd->vars[i].scope_level == 0)
+ return i;
+ }
+ return find_arg(ctx, fd, name);
+}
+
+/* find a variable declaration in a given scope */
+static int find_var_in_scope(JSContext *ctx, JSFunctionDef *fd,
+ JSAtom name, int scope_level)
+{
+ int scope_idx;
+ for(scope_idx = fd->scopes[scope_level].first; scope_idx >= 0;
+ scope_idx = fd->vars[scope_idx].scope_next) {
+ if (fd->vars[scope_idx].scope_level != scope_level)
+ break;
+ if (fd->vars[scope_idx].var_name == name)
+ return scope_idx;
+ }
+ return -1;
+}
+
+/* return true if scope == parent_scope or if scope is a child of
+ parent_scope */
+static BOOL is_child_scope(JSContext *ctx, JSFunctionDef *fd,
+ int scope, int parent_scope)
+{
+ while (scope >= 0) {
+ if (scope == parent_scope)
+ return TRUE;
+ scope = fd->scopes[scope].parent;
+ }
+ return FALSE;
+}
+
+/* find a 'var' declaration in the same scope or a child scope */
+static int find_var_in_child_scope(JSContext *ctx, JSFunctionDef *fd,
+ JSAtom name, int scope_level)
+{
+ int i;
+ for(i = 0; i < fd->var_count; i++) {
+ JSVarDef *vd = &fd->vars[i];
+ if (vd->var_name == name && vd->scope_level == 0) {
+ if (is_child_scope(ctx, fd, vd->scope_next,
+ scope_level))
+ return i;
+ }
+ }
+ return -1;
+}
+
+
+static JSGlobalVar *find_global_var(JSFunctionDef *fd, JSAtom name)
+{
+ int i;
+ for(i = 0; i < fd->global_var_count; i++) {
+ JSGlobalVar *hf = &fd->global_vars[i];
+ if (hf->var_name == name)
+ return hf;
+ }
+ return NULL;
+
+}
+
+static JSGlobalVar *find_lexical_global_var(JSFunctionDef *fd, JSAtom name)
+{
+ JSGlobalVar *hf = find_global_var(fd, name);
+ if (hf && hf->is_lexical)
+ return hf;
+ else
+ return NULL;
+}
+
+static int find_lexical_decl(JSContext *ctx, JSFunctionDef *fd, JSAtom name,
+ int scope_idx, BOOL check_catch_var)
+{
+ while (scope_idx >= 0) {
+ JSVarDef *vd = &fd->vars[scope_idx];
+ if (vd->var_name == name &&
+ (vd->is_lexical || (vd->var_kind == JS_VAR_CATCH &&
+ check_catch_var)))
+ return scope_idx;
+ scope_idx = vd->scope_next;
+ }
+
+ if (fd->is_eval && fd->eval_type == JS_EVAL_TYPE_GLOBAL) {
+ if (find_lexical_global_var(fd, name))
+ return GLOBAL_VAR_OFFSET;
+ }
+ return -1;
+}
+
+static int push_scope(JSParseState *s) {
+ if (s->cur_func) {
+ JSFunctionDef *fd = s->cur_func;
+ int scope = fd->scope_count;
+ /* XXX: should check for scope overflow */
+ if ((fd->scope_count + 1) > fd->scope_size) {
+ int new_size;
+ size_t slack;
+ JSVarScope *new_buf;
+ /* XXX: potential arithmetic overflow */
+ new_size = max_int(fd->scope_count + 1, fd->scope_size * 3 / 2);
+ if (fd->scopes == fd->def_scope_array) {
+ new_buf = js_realloc2(s->ctx, NULL, new_size * sizeof(*fd->scopes), &slack);
+ if (!new_buf)
+ return -1;
+ memcpy(new_buf, fd->scopes, fd->scope_count * sizeof(*fd->scopes));
+ } else {
+ new_buf = js_realloc2(s->ctx, fd->scopes, new_size * sizeof(*fd->scopes), &slack);
+ if (!new_buf)
+ return -1;
+ }
+ new_size += slack / sizeof(*new_buf);
+ fd->scopes = new_buf;
+ fd->scope_size = new_size;
+ }
+ fd->scope_count++;
+ fd->scopes[scope].parent = fd->scope_level;
+ fd->scopes[scope].first = fd->scope_first;
+ emit_op(s, OP_enter_scope);
+ emit_u16(s, scope);
+ return fd->scope_level = scope;
+ }
+ return 0;
+}
+
+static int get_first_lexical_var(JSFunctionDef *fd, int scope)
+{
+ while (scope >= 0) {
+ int scope_idx = fd->scopes[scope].first;
+ if (scope_idx >= 0)
+ return scope_idx;
+ scope = fd->scopes[scope].parent;
+ }
+ return -1;
+}
+
+static void pop_scope(JSParseState *s) {
+ if (s->cur_func) {
+ /* disable scoped variables */
+ JSFunctionDef *fd = s->cur_func;
+ int scope = fd->scope_level;
+ emit_op(s, OP_leave_scope);
+ emit_u16(s, scope);
+ fd->scope_level = fd->scopes[scope].parent;
+ fd->scope_first = get_first_lexical_var(fd, fd->scope_level);
+ }
+}
+
+static void close_scopes(JSParseState *s, int scope, int scope_stop)
+{
+ while (scope > scope_stop) {
+ emit_op(s, OP_leave_scope);
+ emit_u16(s, scope);
+ scope = s->cur_func->scopes[scope].parent;
+ }
+}
+
+/* return the variable index or -1 if error */
+static int add_var(JSContext *ctx, JSFunctionDef *fd, JSAtom name)
+{
+ JSVarDef *vd;
+
+ /* the local variable indexes are currently stored on 16 bits */
+ if (fd->var_count >= JS_MAX_LOCAL_VARS) {
+ JS_ThrowInternalError(ctx, "too many local variables");
+ return -1;
+ }
+ if (js_resize_array(ctx, (void **)&fd->vars, sizeof(fd->vars[0]),
+ &fd->var_size, fd->var_count + 1))
+ return -1;
+ vd = &fd->vars[fd->var_count++];
+ memset(vd, 0, sizeof(*vd));
+ vd->var_name = JS_DupAtom(ctx, name);
+ vd->func_pool_idx = -1;
+ return fd->var_count - 1;
+}
+
+static int add_scope_var(JSContext *ctx, JSFunctionDef *fd, JSAtom name,
+ JSVarKindEnum var_kind)
+{
+ int idx = add_var(ctx, fd, name);
+ if (idx >= 0) {
+ JSVarDef *vd = &fd->vars[idx];
+ vd->var_kind = var_kind;
+ vd->scope_level = fd->scope_level;
+ vd->scope_next = fd->scope_first;
+ fd->scopes[fd->scope_level].first = idx;
+ fd->scope_first = idx;
+ }
+ return idx;
+}
+
+static int add_func_var(JSContext *ctx, JSFunctionDef *fd, JSAtom name)
+{
+ int idx = fd->func_var_idx;
+ if (idx < 0 && (idx = add_var(ctx, fd, name)) >= 0) {
+ fd->func_var_idx = idx;
+ fd->vars[idx].var_kind = JS_VAR_FUNCTION_NAME;
+ if (fd->js_mode & JS_MODE_STRICT)
+ fd->vars[idx].is_const = TRUE;
+ }
+ return idx;
+}
+
+static int add_arguments_var(JSContext *ctx, JSFunctionDef *fd)
+{
+ int idx = fd->arguments_var_idx;
+ if (idx < 0 && (idx = add_var(ctx, fd, JS_ATOM_arguments)) >= 0) {
+ fd->arguments_var_idx = idx;
+ }
+ return idx;
+}
+
+/* add an argument definition in the argument scope. Only needed when
+ "eval()" may be called in the argument scope. Return 0 if OK. */
+static int add_arguments_arg(JSContext *ctx, JSFunctionDef *fd)
+{
+ int idx;
+ if (fd->arguments_arg_idx < 0) {
+ idx = find_var_in_scope(ctx, fd, JS_ATOM_arguments, ARG_SCOPE_INDEX);
+ if (idx < 0) {
+ /* XXX: the scope links are not fully updated. May be an
+ issue if there are child scopes of the argument
+ scope */
+ idx = add_var(ctx, fd, JS_ATOM_arguments);
+ if (idx < 0)
+ return -1;
+ fd->vars[idx].scope_next = fd->scopes[ARG_SCOPE_INDEX].first;
+ fd->scopes[ARG_SCOPE_INDEX].first = idx;
+ fd->vars[idx].scope_level = ARG_SCOPE_INDEX;
+ fd->vars[idx].is_lexical = TRUE;
+
+ fd->arguments_arg_idx = idx;
+ }
+ }
+ return 0;
+}
+
+static int add_arg(JSContext *ctx, JSFunctionDef *fd, JSAtom name)
+{
+ JSVarDef *vd;
+
+ /* the local variable indexes are currently stored on 16 bits */
+ if (fd->arg_count >= JS_MAX_LOCAL_VARS) {
+ JS_ThrowInternalError(ctx, "too many arguments");
+ return -1;
+ }
+ if (js_resize_array(ctx, (void **)&fd->args, sizeof(fd->args[0]),
+ &fd->arg_size, fd->arg_count + 1))
+ return -1;
+ vd = &fd->args[fd->arg_count++];
+ memset(vd, 0, sizeof(*vd));
+ vd->var_name = JS_DupAtom(ctx, name);
+ vd->func_pool_idx = -1;
+ return fd->arg_count - 1;
+}
+
+/* add a global variable definition */
+static JSGlobalVar *add_global_var(JSContext *ctx, JSFunctionDef *s,
+ JSAtom name)
+{
+ JSGlobalVar *hf;
+
+ if (js_resize_array(ctx, (void **)&s->global_vars,
+ sizeof(s->global_vars[0]),
+ &s->global_var_size, s->global_var_count + 1))
+ return NULL;
+ hf = &s->global_vars[s->global_var_count++];
+ hf->cpool_idx = -1;
+ hf->force_init = FALSE;
+ hf->is_lexical = FALSE;
+ hf->is_const = FALSE;
+ hf->scope_level = s->scope_level;
+ hf->var_name = JS_DupAtom(ctx, name);
+ return hf;
+}
+
+typedef enum {
+ JS_VAR_DEF_WITH,
+ JS_VAR_DEF_LET,
+ JS_VAR_DEF_CONST,
+ JS_VAR_DEF_FUNCTION_DECL, /* function declaration */
+ JS_VAR_DEF_NEW_FUNCTION_DECL, /* async/generator function declaration */
+ JS_VAR_DEF_CATCH,
+ JS_VAR_DEF_VAR,
+} JSVarDefEnum;
+
+static int define_var(JSParseState *s, JSFunctionDef *fd, JSAtom name,
+ JSVarDefEnum var_def_type)
+{
+ JSContext *ctx = s->ctx;
+ JSVarDef *vd;
+ int idx;
+
+ switch (var_def_type) {
+ case JS_VAR_DEF_WITH:
+ idx = add_scope_var(ctx, fd, name, JS_VAR_NORMAL);
+ break;
+
+ case JS_VAR_DEF_LET:
+ case JS_VAR_DEF_CONST:
+ case JS_VAR_DEF_FUNCTION_DECL:
+ case JS_VAR_DEF_NEW_FUNCTION_DECL:
+ idx = find_lexical_decl(ctx, fd, name, fd->scope_first, TRUE);
+ if (idx >= 0) {
+ if (idx < GLOBAL_VAR_OFFSET) {
+ if (fd->vars[idx].scope_level == fd->scope_level) {
+ /* same scope: in non strict mode, functions
+ can be redefined (annex B.3.3.4). */
+ if (!(!(fd->js_mode & JS_MODE_STRICT) &&
+ var_def_type == JS_VAR_DEF_FUNCTION_DECL &&
+ fd->vars[idx].var_kind == JS_VAR_FUNCTION_DECL)) {
+ goto redef_lex_error;
+ }
+ } else if (fd->vars[idx].var_kind == JS_VAR_CATCH && (fd->vars[idx].scope_level + 2) == fd->scope_level) {
+ goto redef_lex_error;
+ }
+ } else {
+ if (fd->scope_level == fd->body_scope) {
+ redef_lex_error:
+ /* redefining a scoped var in the same scope: error */
+ return js_parse_error(s, "invalid redefinition of lexical identifier");
+ }
+ }
+ }
+ if (var_def_type != JS_VAR_DEF_FUNCTION_DECL &&
+ var_def_type != JS_VAR_DEF_NEW_FUNCTION_DECL &&
+ fd->scope_level == fd->body_scope &&
+ find_arg(ctx, fd, name) >= 0) {
+ /* lexical variable redefines a parameter name */
+ return js_parse_error(s, "invalid redefinition of parameter name");
+ }
+
+ if (find_var_in_child_scope(ctx, fd, name, fd->scope_level) >= 0) {
+ return js_parse_error(s, "invalid redefinition of a variable");
+ }
+
+ if (fd->is_global_var) {
+ JSGlobalVar *hf;
+ hf = find_global_var(fd, name);
+ if (hf && is_child_scope(ctx, fd, hf->scope_level,
+ fd->scope_level)) {
+ return js_parse_error(s, "invalid redefinition of global identifier");
+ }
+ }
+
+ if (fd->is_eval &&
+ (fd->eval_type == JS_EVAL_TYPE_GLOBAL ||
+ fd->eval_type == JS_EVAL_TYPE_MODULE) &&
+ fd->scope_level == fd->body_scope) {
+ JSGlobalVar *hf;
+ hf = add_global_var(s->ctx, fd, name);
+ if (!hf)
+ return -1;
+ hf->is_lexical = TRUE;
+ hf->is_const = (var_def_type == JS_VAR_DEF_CONST);
+ idx = GLOBAL_VAR_OFFSET;
+ } else {
+ JSVarKindEnum var_kind;
+ if (var_def_type == JS_VAR_DEF_FUNCTION_DECL)
+ var_kind = JS_VAR_FUNCTION_DECL;
+ else if (var_def_type == JS_VAR_DEF_NEW_FUNCTION_DECL)
+ var_kind = JS_VAR_NEW_FUNCTION_DECL;
+ else
+ var_kind = JS_VAR_NORMAL;
+ idx = add_scope_var(ctx, fd, name, var_kind);
+ if (idx >= 0) {
+ vd = &fd->vars[idx];
+ vd->is_lexical = 1;
+ vd->is_const = (var_def_type == JS_VAR_DEF_CONST);
+ }
+ }
+ break;
+
+ case JS_VAR_DEF_CATCH:
+ idx = add_scope_var(ctx, fd, name, JS_VAR_CATCH);
+ break;
+
+ case JS_VAR_DEF_VAR:
+ if (find_lexical_decl(ctx, fd, name, fd->scope_first,
+ FALSE) >= 0) {
+ invalid_lexical_redefinition:
+ /* error to redefine a var that inside a lexical scope */
+ return js_parse_error(s, "invalid redefinition of lexical identifier");
+ }
+ if (fd->is_global_var) {
+ JSGlobalVar *hf;
+ hf = find_global_var(fd, name);
+ if (hf && hf->is_lexical && hf->scope_level == fd->scope_level &&
+ fd->eval_type == JS_EVAL_TYPE_MODULE) {
+ goto invalid_lexical_redefinition;
+ }
+ hf = add_global_var(s->ctx, fd, name);
+ if (!hf)
+ return -1;
+ idx = GLOBAL_VAR_OFFSET;
+ } else {
+ /* if the variable already exists, don't add it again */
+ idx = find_var(ctx, fd, name);
+ if (idx >= 0)
+ break;
+ idx = add_var(ctx, fd, name);
+ if (idx >= 0) {
+ if (name == JS_ATOM_arguments && fd->has_arguments_binding)
+ fd->arguments_var_idx = idx;
+ fd->vars[idx].scope_next = fd->scope_level;
+ }
+ }
+ break;
+ default:
+ abort();
+ }
+ return idx;
+}
+
+/* add a private field variable in the current scope */
+static int add_private_class_field(JSParseState *s, JSFunctionDef *fd,
+ JSAtom name, JSVarKindEnum var_kind, BOOL is_static)
+{
+ JSContext *ctx = s->ctx;
+ JSVarDef *vd;
+ int idx;
+
+ idx = add_scope_var(ctx, fd, name, var_kind);
+ if (idx < 0)
+ return idx;
+ vd = &fd->vars[idx];
+ vd->is_lexical = 1;
+ vd->is_const = 1;
+ vd->is_static_private = is_static;
+ return idx;
+}
+
+static __exception int js_parse_expr(JSParseState *s);
+static __exception int js_parse_function_decl(JSParseState *s,
+ JSParseFunctionEnum func_type,
+ JSFunctionKindEnum func_kind,
+ JSAtom func_name, const uint8_t *ptr,
+ int start_line);
+static JSFunctionDef *js_parse_function_class_fields_init(JSParseState *s);
+static __exception int js_parse_function_decl2(JSParseState *s,
+ JSParseFunctionEnum func_type,
+ JSFunctionKindEnum func_kind,
+ JSAtom func_name,
+ const uint8_t *ptr,
+ int function_line_num,
+ JSParseExportEnum export_flag,
+ JSFunctionDef **pfd);
+static __exception int js_parse_assign_expr2(JSParseState *s, int parse_flags);
+static __exception int js_parse_assign_expr(JSParseState *s);
+static __exception int js_parse_unary(JSParseState *s, int parse_flags);
+static void push_break_entry(JSFunctionDef *fd, BlockEnv *be,
+ JSAtom label_name,
+ int label_break, int label_cont,
+ int drop_count);
+static void pop_break_entry(JSFunctionDef *fd);
+static JSExportEntry *add_export_entry(JSParseState *s, JSModuleDef *m,
+ JSAtom local_name, JSAtom export_name,
+ JSExportTypeEnum export_type);
+
+/* Note: all the fields are already sealed except length */
+static int seal_template_obj(JSContext *ctx, JSValueConst obj)
+{
+ JSObject *p;
+ JSShapeProperty *prs;
+
+ p = JS_VALUE_GET_OBJ(obj);
+ prs = find_own_property1(p, JS_ATOM_length);
+ if (prs) {
+ if (js_update_property_flags(ctx, p, &prs,
+ prs->flags & ~(JS_PROP_CONFIGURABLE | JS_PROP_WRITABLE)))
+ return -1;
+ }
+ p->extensible = FALSE;
+ return 0;
+}
+
+static __exception int js_parse_template(JSParseState *s, int call, int *argc)
+{
+ JSContext *ctx = s->ctx;
+ JSValue raw_array, template_object;
+ JSToken cooked;
+ int depth, ret;
+
+ raw_array = JS_UNDEFINED; /* avoid warning */
+ template_object = JS_UNDEFINED; /* avoid warning */
+ if (call) {
+ /* Create a template object: an array of cooked strings */
+ /* Create an array of raw strings and store it to the raw property */
+ template_object = JS_NewArray(ctx);
+ if (JS_IsException(template_object))
+ return -1;
+ // pool_idx = s->cur_func->cpool_count;
+ ret = emit_push_const(s, template_object, 0);
+ JS_FreeValue(ctx, template_object);
+ if (ret)
+ return -1;
+ raw_array = JS_NewArray(ctx);
+ if (JS_IsException(raw_array))
+ return -1;
+ if (JS_DefinePropertyValue(ctx, template_object, JS_ATOM_raw,
+ raw_array, JS_PROP_THROW) < 0) {
+ return -1;
+ }
+ }
+
+ depth = 0;
+ while (s->token.val == TOK_TEMPLATE) {
+ const uint8_t *p = s->token.ptr + 1;
+ cooked = s->token;
+ if (call) {
+ if (JS_DefinePropertyValueUint32(ctx, raw_array, depth,
+ JS_DupValue(ctx, s->token.u.str.str),
+ JS_PROP_ENUMERABLE | JS_PROP_THROW) < 0) {
+ return -1;
+ }
+ /* re-parse the string with escape sequences but do not throw a
+ syntax error if it contains invalid sequences
+ */
+ if (js_parse_string(s, '`', FALSE, p, &cooked, &p)) {
+ cooked.u.str.str = JS_UNDEFINED;
+ }
+ if (JS_DefinePropertyValueUint32(ctx, template_object, depth,
+ cooked.u.str.str,
+ JS_PROP_ENUMERABLE | JS_PROP_THROW) < 0) {
+ return -1;
+ }
+ } else {
+ JSString *str;
+ /* re-parse the string with escape sequences and throw a
+ syntax error if it contains invalid sequences
+ */
+ JS_FreeValue(ctx, s->token.u.str.str);
+ s->token.u.str.str = JS_UNDEFINED;
+ if (js_parse_string(s, '`', TRUE, p, &cooked, &p))
+ return -1;
+ str = JS_VALUE_GET_STRING(cooked.u.str.str);
+ if (str->len != 0 || depth == 0) {
+ ret = emit_push_const(s, cooked.u.str.str, 1);
+ JS_FreeValue(s->ctx, cooked.u.str.str);
+ if (ret)
+ return -1;
+ if (depth == 0) {
+ if (s->token.u.str.sep == '`')
+ goto done1;
+ emit_op(s, OP_get_field2);
+ emit_atom(s, JS_ATOM_concat);
+ }
+ depth++;
+ } else {
+ JS_FreeValue(s->ctx, cooked.u.str.str);
+ }
+ }
+ if (s->token.u.str.sep == '`')
+ goto done;
+ if (next_token(s))
+ return -1;
+ if (js_parse_expr(s))
+ return -1;
+ depth++;
+ if (s->token.val != '}') {
+ return js_parse_error(s, "expected '}' after template expression");
+ }
+ /* XXX: should convert to string at this stage? */
+ free_token(s, &s->token);
+ /* Resume TOK_TEMPLATE parsing (s->token.line_num and
+ * s->token.ptr are OK) */
+ s->got_lf = FALSE;
+ s->last_line_num = s->token.line_num;
+ if (js_parse_template_part(s, s->buf_ptr))
+ return -1;
+ }
+ return js_parse_expect(s, TOK_TEMPLATE);
+
+ done:
+ if (call) {
+ /* Seal the objects */
+ seal_template_obj(ctx, raw_array);
+ seal_template_obj(ctx, template_object);
+ *argc = depth + 1;
+ } else {
+ emit_op(s, OP_call_method);
+ emit_u16(s, depth - 1);
+ }
+ done1:
+ return next_token(s);
+}
+
+
+#define PROP_TYPE_IDENT 0
+#define PROP_TYPE_VAR 1
+#define PROP_TYPE_GET 2
+#define PROP_TYPE_SET 3
+#define PROP_TYPE_STAR 4
+#define PROP_TYPE_ASYNC 5
+#define PROP_TYPE_ASYNC_STAR 6
+
+#define PROP_TYPE_PRIVATE (1 << 4)
+
+static BOOL token_is_ident(int tok)
+{
+ /* Accept keywords and reserved words as property names */
+ return (tok == TOK_IDENT ||
+ (tok >= TOK_FIRST_KEYWORD &&
+ tok <= TOK_LAST_KEYWORD));
+}
+
+/* if the property is an expression, name = JS_ATOM_NULL */
+static int __exception js_parse_property_name(JSParseState *s,
+ JSAtom *pname,
+ BOOL allow_method, BOOL allow_var,
+ BOOL allow_private)
+{
+ int is_private = 0;
+ BOOL is_non_reserved_ident;
+ JSAtom name;
+ int prop_type;
+
+ prop_type = PROP_TYPE_IDENT;
+ if (allow_method) {
+ if (token_is_pseudo_keyword(s, JS_ATOM_get)
+ || token_is_pseudo_keyword(s, JS_ATOM_set)) {
+ /* get x(), set x() */
+ name = JS_DupAtom(s->ctx, s->token.u.ident.atom);
+ if (next_token(s))
+ goto fail1;
+ if (s->token.val == ':' || s->token.val == ',' ||
+ s->token.val == '}' || s->token.val == '(' ||
+ s->token.val == '=') {
+ is_non_reserved_ident = TRUE;
+ goto ident_found;
+ }
+ prop_type = PROP_TYPE_GET + (name == JS_ATOM_set);
+ JS_FreeAtom(s->ctx, name);
+ } else if (s->token.val == '*') {
+ if (next_token(s))
+ goto fail;
+ prop_type = PROP_TYPE_STAR;
+ } else if (token_is_pseudo_keyword(s, JS_ATOM_async) &&
+ peek_token(s, TRUE) != '\n') {
+ name = JS_DupAtom(s->ctx, s->token.u.ident.atom);
+ if (next_token(s))
+ goto fail1;
+ if (s->token.val == ':' || s->token.val == ',' ||
+ s->token.val == '}' || s->token.val == '(' ||
+ s->token.val == '=') {
+ is_non_reserved_ident = TRUE;
+ goto ident_found;
+ }
+ JS_FreeAtom(s->ctx, name);
+ if (s->token.val == '*') {
+ if (next_token(s))
+ goto fail;
+ prop_type = PROP_TYPE_ASYNC_STAR;
+ } else {
+ prop_type = PROP_TYPE_ASYNC;
+ }
+ }
+ }
+
+ if (token_is_ident(s->token.val)) {
+ /* variable can only be a non-reserved identifier */
+ is_non_reserved_ident =
+ (s->token.val == TOK_IDENT && !s->token.u.ident.is_reserved);
+ /* keywords and reserved words have a valid atom */
+ name = JS_DupAtom(s->ctx, s->token.u.ident.atom);
+ if (next_token(s))
+ goto fail1;
+ ident_found:
+ if (is_non_reserved_ident &&
+ prop_type == PROP_TYPE_IDENT && allow_var) {
+ if (!(s->token.val == ':' ||
+ (s->token.val == '(' && allow_method))) {
+ prop_type = PROP_TYPE_VAR;
+ }
+ }
+ } else if (s->token.val == TOK_STRING) {
+ name = JS_ValueToAtom(s->ctx, s->token.u.str.str);
+ if (name == JS_ATOM_NULL)
+ goto fail;
+ if (next_token(s))
+ goto fail1;
+ } else if (s->token.val == TOK_NUMBER) {
+ JSValue val;
+ val = s->token.u.num.val;
+#ifdef CONFIG_BIGNUM
+ if (JS_VALUE_GET_TAG(val) == JS_TAG_BIG_FLOAT) {
+ JSBigFloat *p = JS_VALUE_GET_PTR(val);
+ val = s->ctx->rt->bigfloat_ops.
+ mul_pow10_to_float64(s->ctx, &p->num,
+ s->token.u.num.exponent);
+ if (JS_IsException(val))
+ goto fail;
+ name = JS_ValueToAtom(s->ctx, val);
+ JS_FreeValue(s->ctx, val);
+ } else
+#endif
+ {
+ name = JS_ValueToAtom(s->ctx, val);
+ }
+ if (name == JS_ATOM_NULL)
+ goto fail;
+ if (next_token(s))
+ goto fail1;
+ } else if (s->token.val == '[') {
+ if (next_token(s))
+ goto fail;
+ if (js_parse_expr(s))
+ goto fail;
+ if (js_parse_expect(s, ']'))
+ goto fail;
+ name = JS_ATOM_NULL;
+ } else if (s->token.val == TOK_PRIVATE_NAME && allow_private) {
+ name = JS_DupAtom(s->ctx, s->token.u.ident.atom);
+ if (next_token(s))
+ goto fail1;
+ is_private = PROP_TYPE_PRIVATE;
+ } else {
+ goto invalid_prop;
+ }
+ if (prop_type != PROP_TYPE_IDENT && prop_type != PROP_TYPE_VAR &&
+ s->token.val != '(') {
+ JS_FreeAtom(s->ctx, name);
+ invalid_prop:
+ js_parse_error(s, "invalid property name");
+ goto fail;
+ }
+ *pname = name;
+ return prop_type | is_private;
+ fail1:
+ JS_FreeAtom(s->ctx, name);
+ fail:
+ *pname = JS_ATOM_NULL;
+ return -1;
+}
+
+typedef struct JSParsePos {
+ int last_line_num;
+ int line_num;
+ BOOL got_lf;
+ const uint8_t *ptr;
+} JSParsePos;
+
+static int js_parse_get_pos(JSParseState *s, JSParsePos *sp)
+{
+ sp->last_line_num = s->last_line_num;
+ sp->line_num = s->token.line_num;
+ sp->ptr = s->token.ptr;
+ sp->got_lf = s->got_lf;
+ return 0;
+}
+
+static __exception int js_parse_seek_token(JSParseState *s, const JSParsePos *sp)
+{
+ s->token.line_num = sp->last_line_num;
+ s->line_num = sp->line_num;
+ s->buf_ptr = sp->ptr;
+ s->got_lf = sp->got_lf;
+ return next_token(s);
+}
+
+/* return TRUE if a regexp literal is allowed after this token */
+static BOOL is_regexp_allowed(int tok)
+{
+ switch (tok) {
+ case TOK_NUMBER:
+ case TOK_STRING:
+ case TOK_REGEXP:
+ case TOK_DEC:
+ case TOK_INC:
+ case TOK_NULL:
+ case TOK_FALSE:
+ case TOK_TRUE:
+ case TOK_THIS:
+ case ')':
+ case ']':
+ case '}': /* XXX: regexp may occur after */
+ case TOK_IDENT:
+ return FALSE;
+ default:
+ return TRUE;
+ }
+}
+
+#define SKIP_HAS_SEMI (1 << 0)
+#define SKIP_HAS_ELLIPSIS (1 << 1)
+#define SKIP_HAS_ASSIGNMENT (1 << 2)
+
+/* XXX: improve speed with early bailout */
+/* XXX: no longer works if regexps are present. Could use previous
+ regexp parsing heuristics to handle most cases */
+static int js_parse_skip_parens_token(JSParseState *s, int *pbits, BOOL no_line_terminator)
+{
+ char state[256];
+ size_t level = 0;
+ JSParsePos pos;
+ int last_tok, tok = TOK_EOF;
+ int c, tok_len, bits = 0;
+
+ /* protect from underflow */
+ state[level++] = 0;
+
+ js_parse_get_pos(s, &pos);
+ last_tok = 0;
+ for (;;) {
+ switch(s->token.val) {
+ case '(':
+ case '[':
+ case '{':
+ if (level >= sizeof(state))
+ goto done;
+ state[level++] = s->token.val;
+ break;
+ case ')':
+ if (state[--level] != '(')
+ goto done;
+ break;
+ case ']':
+ if (state[--level] != '[')
+ goto done;
+ break;
+ case '}':
+ c = state[--level];
+ if (c == '`') {
+ /* continue the parsing of the template */
+ free_token(s, &s->token);
+ /* Resume TOK_TEMPLATE parsing (s->token.line_num and
+ * s->token.ptr are OK) */
+ s->got_lf = FALSE;
+ s->last_line_num = s->token.line_num;
+ if (js_parse_template_part(s, s->buf_ptr))
+ goto done;
+ goto handle_template;
+ } else if (c != '{') {
+ goto done;
+ }
+ break;
+ case TOK_TEMPLATE:
+ handle_template:
+ if (s->token.u.str.sep != '`') {
+ /* '${' inside the template : closing '}' and continue
+ parsing the template */
+ if (level >= sizeof(state))
+ goto done;
+ state[level++] = '`';
+ }
+ break;
+ case TOK_EOF:
+ goto done;
+ case ';':
+ if (level == 2) {
+ bits |= SKIP_HAS_SEMI;
+ }
+ break;
+ case TOK_ELLIPSIS:
+ if (level == 2) {
+ bits |= SKIP_HAS_ELLIPSIS;
+ }
+ break;
+ case '=':
+ bits |= SKIP_HAS_ASSIGNMENT;
+ break;
+
+ case TOK_DIV_ASSIGN:
+ tok_len = 2;
+ goto parse_regexp;
+ case '/':
+ tok_len = 1;
+ parse_regexp:
+ if (is_regexp_allowed(last_tok)) {
+ s->buf_ptr -= tok_len;
+ if (js_parse_regexp(s)) {
+ /* XXX: should clear the exception */
+ goto done;
+ }
+ }
+ break;
+ }
+ /* last_tok is only used to recognize regexps */
+ if (s->token.val == TOK_IDENT &&
+ (token_is_pseudo_keyword(s, JS_ATOM_of) ||
+ token_is_pseudo_keyword(s, JS_ATOM_yield))) {
+ last_tok = TOK_OF;
+ } else {
+ last_tok = s->token.val;
+ }
+ if (next_token(s)) {
+ /* XXX: should clear the exception generated by next_token() */
+ break;
+ }
+ if (level <= 1) {
+ tok = s->token.val;
+ if (token_is_pseudo_keyword(s, JS_ATOM_of))
+ tok = TOK_OF;
+ if (no_line_terminator && s->last_line_num != s->token.line_num)
+ tok = '\n';
+ break;
+ }
+ }
+ done:
+ if (pbits) {
+ *pbits = bits;
+ }
+ if (js_parse_seek_token(s, &pos))
+ return -1;
+ return tok;
+}
+
+static void set_object_name(JSParseState *s, JSAtom name)
+{
+ JSFunctionDef *fd = s->cur_func;
+ int opcode;
+
+ opcode = get_prev_opcode(fd);
+ if (opcode == OP_set_name) {
+ /* XXX: should free atom after OP_set_name? */
+ fd->byte_code.size = fd->last_opcode_pos;
+ fd->last_opcode_pos = -1;
+ emit_op(s, OP_set_name);
+ emit_atom(s, name);
+ } else if (opcode == OP_set_class_name) {
+ int define_class_pos;
+ JSAtom atom;
+ define_class_pos = fd->last_opcode_pos + 1 -
+ get_u32(fd->byte_code.buf + fd->last_opcode_pos + 1);
+ assert(fd->byte_code.buf[define_class_pos] == OP_define_class);
+ /* for consistency we free the previous atom which is
+ JS_ATOM_empty_string */
+ atom = get_u32(fd->byte_code.buf + define_class_pos + 1);
+ JS_FreeAtom(s->ctx, atom);
+ put_u32(fd->byte_code.buf + define_class_pos + 1,
+ JS_DupAtom(s->ctx, name));
+ fd->last_opcode_pos = -1;
+ }
+}
+
+static void set_object_name_computed(JSParseState *s)
+{
+ JSFunctionDef *fd = s->cur_func;
+ int opcode;
+
+ opcode = get_prev_opcode(fd);
+ if (opcode == OP_set_name) {
+ /* XXX: should free atom after OP_set_name? */
+ fd->byte_code.size = fd->last_opcode_pos;
+ fd->last_opcode_pos = -1;
+ emit_op(s, OP_set_name_computed);
+ } else if (opcode == OP_set_class_name) {
+ int define_class_pos;
+ define_class_pos = fd->last_opcode_pos + 1 -
+ get_u32(fd->byte_code.buf + fd->last_opcode_pos + 1);
+ assert(fd->byte_code.buf[define_class_pos] == OP_define_class);
+ fd->byte_code.buf[define_class_pos] = OP_define_class_computed;
+ fd->last_opcode_pos = -1;
+ }
+}
+
+static __exception int js_parse_object_literal(JSParseState *s)
+{
+ JSAtom name = JS_ATOM_NULL;
+ const uint8_t *start_ptr;
+ int start_line, prop_type;
+ BOOL has_proto;
+
+ if (next_token(s))
+ goto fail;
+ /* XXX: add an initial length that will be patched back */
+ emit_op(s, OP_object);
+ has_proto = FALSE;
+ while (s->token.val != '}') {
+ /* specific case for getter/setter */
+ start_ptr = s->token.ptr;
+ start_line = s->token.line_num;
+
+ if (s->token.val == TOK_ELLIPSIS) {
+ if (next_token(s))
+ return -1;
+ if (js_parse_assign_expr(s))
+ return -1;
+ emit_op(s, OP_null); /* dummy excludeList */
+ emit_op(s, OP_copy_data_properties);
+ emit_u8(s, 2 | (1 << 2) | (0 << 5));
+ emit_op(s, OP_drop); /* pop excludeList */
+ emit_op(s, OP_drop); /* pop src object */
+ goto next;
+ }
+
+ prop_type = js_parse_property_name(s, &name, TRUE, TRUE, FALSE);
+ if (prop_type < 0)
+ goto fail;
+
+ if (prop_type == PROP_TYPE_VAR) {
+ /* shortcut for x: x */
+ emit_op(s, OP_scope_get_var);
+ emit_atom(s, name);
+ emit_u16(s, s->cur_func->scope_level);
+ emit_op(s, OP_define_field);
+ emit_atom(s, name);
+ } else if (s->token.val == '(') {
+ BOOL is_getset = (prop_type == PROP_TYPE_GET ||
+ prop_type == PROP_TYPE_SET);
+ JSParseFunctionEnum func_type;
+ JSFunctionKindEnum func_kind;
+ int op_flags;
+
+ func_kind = JS_FUNC_NORMAL;
+ if (is_getset) {
+ func_type = JS_PARSE_FUNC_GETTER + prop_type - PROP_TYPE_GET;
+ } else {
+ func_type = JS_PARSE_FUNC_METHOD;
+ if (prop_type == PROP_TYPE_STAR)
+ func_kind = JS_FUNC_GENERATOR;
+ else if (prop_type == PROP_TYPE_ASYNC)
+ func_kind = JS_FUNC_ASYNC;
+ else if (prop_type == PROP_TYPE_ASYNC_STAR)
+ func_kind = JS_FUNC_ASYNC_GENERATOR;
+ }
+ if (js_parse_function_decl(s, func_type, func_kind, JS_ATOM_NULL,
+ start_ptr, start_line))
+ goto fail;
+ if (name == JS_ATOM_NULL) {
+ emit_op(s, OP_define_method_computed);
+ } else {
+ emit_op(s, OP_define_method);
+ emit_atom(s, name);
+ }
+ if (is_getset) {
+ op_flags = OP_DEFINE_METHOD_GETTER +
+ prop_type - PROP_TYPE_GET;
+ } else {
+ op_flags = OP_DEFINE_METHOD_METHOD;
+ }
+ emit_u8(s, op_flags | OP_DEFINE_METHOD_ENUMERABLE);
+ } else {
+ if (js_parse_expect(s, ':'))
+ goto fail;
+ if (js_parse_assign_expr(s))
+ goto fail;
+ if (name == JS_ATOM_NULL) {
+ set_object_name_computed(s);
+ emit_op(s, OP_define_array_el);
+ emit_op(s, OP_drop);
+ } else if (name == JS_ATOM___proto__) {
+ if (has_proto) {
+ js_parse_error(s, "duplicate __proto__ property name");
+ goto fail;
+ }
+ emit_op(s, OP_set_proto);
+ has_proto = TRUE;
+ } else {
+ set_object_name(s, name);
+ emit_op(s, OP_define_field);
+ emit_atom(s, name);
+ }
+ }
+ JS_FreeAtom(s->ctx, name);
+ next:
+ name = JS_ATOM_NULL;
+ if (s->token.val != ',')
+ break;
+ if (next_token(s))
+ goto fail;
+ }
+ if (js_parse_expect(s, '}'))
+ goto fail;
+ return 0;
+ fail:
+ JS_FreeAtom(s->ctx, name);
+ return -1;
+}
+
+/* allow the 'in' binary operator */
+#define PF_IN_ACCEPTED (1 << 0)
+/* allow function calls parsing in js_parse_postfix_expr() */
+#define PF_POSTFIX_CALL (1 << 1)
+/* allow the exponentiation operator in js_parse_unary() */
+#define PF_POW_ALLOWED (1 << 2)
+/* forbid the exponentiation operator in js_parse_unary() */
+#define PF_POW_FORBIDDEN (1 << 3)
+
+static __exception int js_parse_postfix_expr(JSParseState *s, int parse_flags);
+
+static __exception int js_parse_left_hand_side_expr(JSParseState *s)
+{
+ return js_parse_postfix_expr(s, PF_POSTFIX_CALL);
+}
+
+/* XXX: could generate specific bytecode */
+static __exception int js_parse_class_default_ctor(JSParseState *s,
+ BOOL has_super,
+ JSFunctionDef **pfd)
+{
+ JSParsePos pos;
+ const char *str;
+ int ret, line_num;
+ JSParseFunctionEnum func_type;
+ const uint8_t *saved_buf_end;
+
+ js_parse_get_pos(s, &pos);
+ if (has_super) {
+ /* spec change: no argument evaluation */
+ str = "(){super(...arguments);}";
+ func_type = JS_PARSE_FUNC_DERIVED_CLASS_CONSTRUCTOR;
+ } else {
+ str = "(){}";
+ func_type = JS_PARSE_FUNC_CLASS_CONSTRUCTOR;
+ }
+ line_num = s->token.line_num;
+ saved_buf_end = s->buf_end;
+ s->buf_ptr = (uint8_t *)str;
+ s->buf_end = (uint8_t *)(str + strlen(str));
+ ret = next_token(s);
+ if (!ret) {
+ ret = js_parse_function_decl2(s, func_type, JS_FUNC_NORMAL,
+ JS_ATOM_NULL, (uint8_t *)str,
+ line_num, JS_PARSE_EXPORT_NONE, pfd);
+ }
+ s->buf_end = saved_buf_end;
+ ret |= js_parse_seek_token(s, &pos);
+ return ret;
+}
+
+/* find field in the current scope */
+static int find_private_class_field(JSContext *ctx, JSFunctionDef *fd,
+ JSAtom name, int scope_level)
+{
+ int idx;
+ idx = fd->scopes[scope_level].first;
+ while (idx != -1) {
+ if (fd->vars[idx].scope_level != scope_level)
+ break;
+ if (fd->vars[idx].var_name == name)
+ return idx;
+ idx = fd->vars[idx].scope_next;
+ }
+ return -1;
+}
+
+/* initialize the class fields, called by the constructor. Note:
+ super() can be called in an arrow function, so <this> and
+ <class_fields_init> can be variable references */
+static void emit_class_field_init(JSParseState *s)
+{
+ int label_next;
+
+ emit_op(s, OP_scope_get_var);
+ emit_atom(s, JS_ATOM_class_fields_init);
+ emit_u16(s, s->cur_func->scope_level);
+
+ /* no need to call the class field initializer if not defined */
+ emit_op(s, OP_dup);
+ label_next = emit_goto(s, OP_if_false, -1);
+
+ emit_op(s, OP_scope_get_var);
+ emit_atom(s, JS_ATOM_this);
+ emit_u16(s, 0);
+
+ emit_op(s, OP_swap);
+
+ emit_op(s, OP_call_method);
+ emit_u16(s, 0);
+
+ emit_label(s, label_next);
+ emit_op(s, OP_drop);
+}
+
+/* build a private setter function name from the private getter name */
+static JSAtom get_private_setter_name(JSContext *ctx, JSAtom name)
+{
+ return js_atom_concat_str(ctx, name, "<set>");
+}
+
+typedef struct {
+ JSFunctionDef *fields_init_fd;
+ int computed_fields_count;
+ BOOL need_brand;
+ int brand_push_pos;
+ BOOL is_static;
+} ClassFieldsDef;
+
+static __exception int emit_class_init_start(JSParseState *s,
+ ClassFieldsDef *cf)
+{
+ int label_add_brand;
+
+ cf->fields_init_fd = js_parse_function_class_fields_init(s);
+ if (!cf->fields_init_fd)
+ return -1;
+
+ s->cur_func = cf->fields_init_fd;
+
+ if (!cf->is_static) {
+ /* add the brand to the newly created instance */
+ /* XXX: would be better to add the code only if needed, maybe in a
+ later pass */
+ emit_op(s, OP_push_false); /* will be patched later */
+ cf->brand_push_pos = cf->fields_init_fd->last_opcode_pos;
+ label_add_brand = emit_goto(s, OP_if_false, -1);
+
+ emit_op(s, OP_scope_get_var);
+ emit_atom(s, JS_ATOM_this);
+ emit_u16(s, 0);
+
+ emit_op(s, OP_scope_get_var);
+ emit_atom(s, JS_ATOM_home_object);
+ emit_u16(s, 0);
+
+ emit_op(s, OP_add_brand);
+
+ emit_label(s, label_add_brand);
+ }
+ s->cur_func = s->cur_func->parent;
+ return 0;
+}
+
+static void emit_class_init_end(JSParseState *s, ClassFieldsDef *cf)
+{
+ int cpool_idx;
+
+ s->cur_func = cf->fields_init_fd;
+ emit_op(s, OP_return_undef);
+ s->cur_func = s->cur_func->parent;
+
+ cpool_idx = cpool_add(s, JS_NULL);
+ cf->fields_init_fd->parent_cpool_idx = cpool_idx;
+ emit_op(s, OP_fclosure);
+ emit_u32(s, cpool_idx);
+ emit_op(s, OP_set_home_object);
+}
+
+
+static __exception int js_parse_class(JSParseState *s, BOOL is_class_expr,
+ JSParseExportEnum export_flag)
+{
+ JSContext *ctx = s->ctx;
+ JSFunctionDef *fd = s->cur_func;
+ JSAtom name = JS_ATOM_NULL, class_name = JS_ATOM_NULL, class_name1;
+ JSAtom class_var_name = JS_ATOM_NULL;
+ JSFunctionDef *method_fd, *ctor_fd;
+ int saved_js_mode, class_name_var_idx, prop_type, ctor_cpool_offset;
+ int class_flags = 0, i, define_class_offset;
+ BOOL is_static, is_private;
+ const uint8_t *class_start_ptr = s->token.ptr;
+ const uint8_t *start_ptr;
+ ClassFieldsDef class_fields[2];
+
+ /* classes are parsed and executed in strict mode */
+ saved_js_mode = fd->js_mode;
+ fd->js_mode |= JS_MODE_STRICT;
+ if (next_token(s))
+ goto fail;
+ if (s->token.val == TOK_IDENT) {
+ if (s->token.u.ident.is_reserved) {
+ js_parse_error_reserved_identifier(s);
+ goto fail;
+ }
+ class_name = JS_DupAtom(ctx, s->token.u.ident.atom);
+ if (next_token(s))
+ goto fail;
+ } else if (!is_class_expr && export_flag != JS_PARSE_EXPORT_DEFAULT) {
+ js_parse_error(s, "class statement requires a name");
+ goto fail;
+ }
+ if (!is_class_expr) {
+ if (class_name == JS_ATOM_NULL)
+ class_var_name = JS_ATOM__default_; /* export default */
+ else
+ class_var_name = class_name;
+ class_var_name = JS_DupAtom(ctx, class_var_name);
+ }
+
+ push_scope(s);
+
+ if (s->token.val == TOK_EXTENDS) {
+ class_flags = JS_DEFINE_CLASS_HAS_HERITAGE;
+ if (next_token(s))
+ goto fail;
+ if (js_parse_left_hand_side_expr(s))
+ goto fail;
+ } else {
+ emit_op(s, OP_undefined);
+ }
+
+ /* add a 'const' definition for the class name */
+ if (class_name != JS_ATOM_NULL) {
+ class_name_var_idx = define_var(s, fd, class_name, JS_VAR_DEF_CONST);
+ if (class_name_var_idx < 0)
+ goto fail;
+ }
+
+ if (js_parse_expect(s, '{'))
+ goto fail;
+
+ /* this scope contains the private fields */
+ push_scope(s);
+
+ emit_op(s, OP_push_const);
+ ctor_cpool_offset = fd->byte_code.size;
+ emit_u32(s, 0); /* will be patched at the end of the class parsing */
+
+ if (class_name == JS_ATOM_NULL) {
+ if (class_var_name != JS_ATOM_NULL)
+ class_name1 = JS_ATOM_default;
+ else
+ class_name1 = JS_ATOM_empty_string;
+ } else {
+ class_name1 = class_name;
+ }
+
+ emit_op(s, OP_define_class);
+ emit_atom(s, class_name1);
+ emit_u8(s, class_flags);
+ define_class_offset = fd->last_opcode_pos;
+
+ for(i = 0; i < 2; i++) {
+ ClassFieldsDef *cf = &class_fields[i];
+ cf->fields_init_fd = NULL;
+ cf->computed_fields_count = 0;
+ cf->need_brand = FALSE;
+ cf->is_static = i;
+ }
+
+ ctor_fd = NULL;
+ while (s->token.val != '}') {
+ if (s->token.val == ';') {
+ if (next_token(s))
+ goto fail;
+ continue;
+ }
+ is_static = FALSE;
+ if (s->token.val == TOK_STATIC) {
+ int next = peek_token(s, TRUE);
+ if (!(next == ';' || next == '}' || next == '(' || next == '='))
+ is_static = TRUE;
+ }
+ prop_type = -1;
+ if (is_static) {
+ if (next_token(s))
+ goto fail;
+ if (s->token.val == '{') {
+ ClassFieldsDef *cf = &class_fields[is_static];
+ JSFunctionDef *init;
+ if (!cf->fields_init_fd) {
+ if (emit_class_init_start(s, cf))
+ goto fail;
+ }
+ s->cur_func = cf->fields_init_fd;
+ /* XXX: could try to avoid creating a new function and
+ reuse 'fields_init_fd' with a specific 'var'
+ scope */
+ // stack is now: <empty>
+ if (js_parse_function_decl2(s, JS_PARSE_FUNC_CLASS_STATIC_INIT,
+ JS_FUNC_NORMAL, JS_ATOM_NULL,
+ s->token.ptr, s->token.line_num,
+ JS_PARSE_EXPORT_NONE, &init) < 0) {
+ goto fail;
+ }
+ // stack is now: fclosure
+ push_scope(s);
+ emit_op(s, OP_scope_get_var);
+ emit_atom(s, JS_ATOM_this);
+ emit_u16(s, 0);
+ // stack is now: fclosure this
+ emit_op(s, OP_swap);
+ // stack is now: this fclosure
+ emit_op(s, OP_call_method);
+ emit_u16(s, 0);
+ // stack is now: returnvalue
+ emit_op(s, OP_drop);
+ // stack is now: <empty>
+ pop_scope(s);
+ s->cur_func = s->cur_func->parent;
+ continue;
+ }
+ /* allow "static" field name */
+ if (s->token.val == ';' || s->token.val == '=') {
+ is_static = FALSE;
+ name = JS_DupAtom(ctx, JS_ATOM_static);
+ prop_type = PROP_TYPE_IDENT;
+ }
+ }
+ if (is_static)
+ emit_op(s, OP_swap);
+ start_ptr = s->token.ptr;
+ if (prop_type < 0) {
+ prop_type = js_parse_property_name(s, &name, TRUE, FALSE, TRUE);
+ if (prop_type < 0)
+ goto fail;
+ }
+ is_private = prop_type & PROP_TYPE_PRIVATE;
+ prop_type &= ~PROP_TYPE_PRIVATE;
+
+ if ((name == JS_ATOM_constructor && !is_static &&
+ prop_type != PROP_TYPE_IDENT) ||
+ (name == JS_ATOM_prototype && is_static) ||
+ name == JS_ATOM_hash_constructor) {
+ js_parse_error(s, "invalid method name");
+ goto fail;
+ }
+ if (prop_type == PROP_TYPE_GET || prop_type == PROP_TYPE_SET) {
+ BOOL is_set = prop_type - PROP_TYPE_GET;
+ JSFunctionDef *method_fd;
+
+ if (is_private) {
+ int idx, var_kind, is_static1;
+ idx = find_private_class_field(ctx, fd, name, fd->scope_level);
+ if (idx >= 0) {
+ var_kind = fd->vars[idx].var_kind;
+ is_static1 = fd->vars[idx].is_static_private;
+ if (var_kind == JS_VAR_PRIVATE_FIELD ||
+ var_kind == JS_VAR_PRIVATE_METHOD ||
+ var_kind == JS_VAR_PRIVATE_GETTER_SETTER ||
+ var_kind == (JS_VAR_PRIVATE_GETTER + is_set) ||
+ (var_kind == (JS_VAR_PRIVATE_GETTER + 1 - is_set) &&
+ is_static != is_static1)) {
+ goto private_field_already_defined;
+ }
+ fd->vars[idx].var_kind = JS_VAR_PRIVATE_GETTER_SETTER;
+ } else {
+ if (add_private_class_field(s, fd, name,
+ JS_VAR_PRIVATE_GETTER + is_set, is_static) < 0)
+ goto fail;
+ }
+ class_fields[is_static].need_brand = TRUE;
+ }
+
+ if (js_parse_function_decl2(s, JS_PARSE_FUNC_GETTER + is_set,
+ JS_FUNC_NORMAL, JS_ATOM_NULL,
+ start_ptr, s->token.line_num,
+ JS_PARSE_EXPORT_NONE, &method_fd))
+ goto fail;
+ if (is_private) {
+ method_fd->need_home_object = TRUE; /* needed for brand check */
+ emit_op(s, OP_set_home_object);
+ /* XXX: missing function name */
+ emit_op(s, OP_scope_put_var_init);
+ if (is_set) {
+ JSAtom setter_name;
+ int ret;
+
+ setter_name = get_private_setter_name(ctx, name);
+ if (setter_name == JS_ATOM_NULL)
+ goto fail;
+ emit_atom(s, setter_name);
+ ret = add_private_class_field(s, fd, setter_name,
+ JS_VAR_PRIVATE_SETTER, is_static);
+ JS_FreeAtom(ctx, setter_name);
+ if (ret < 0)
+ goto fail;
+ } else {
+ emit_atom(s, name);
+ }
+ emit_u16(s, s->cur_func->scope_level);
+ } else {
+ if (name == JS_ATOM_NULL) {
+ emit_op(s, OP_define_method_computed);
+ } else {
+ emit_op(s, OP_define_method);
+ emit_atom(s, name);
+ }
+ emit_u8(s, OP_DEFINE_METHOD_GETTER + is_set);
+ }
+ } else if (prop_type == PROP_TYPE_IDENT && s->token.val != '(') {
+ ClassFieldsDef *cf = &class_fields[is_static];
+ JSAtom field_var_name = JS_ATOM_NULL;
+
+ /* class field */
+
+ /* XXX: spec: not consistent with method name checks */
+ if (name == JS_ATOM_constructor || name == JS_ATOM_prototype) {
+ js_parse_error(s, "invalid field name");
+ goto fail;
+ }
+
+ if (is_private) {
+ if (find_private_class_field(ctx, fd, name,
+ fd->scope_level) >= 0) {
+ goto private_field_already_defined;
+ }
+ if (add_private_class_field(s, fd, name,
+ JS_VAR_PRIVATE_FIELD, is_static) < 0)
+ goto fail;
+ emit_op(s, OP_private_symbol);
+ emit_atom(s, name);
+ emit_op(s, OP_scope_put_var_init);
+ emit_atom(s, name);
+ emit_u16(s, s->cur_func->scope_level);
+ }
+
+ if (!cf->fields_init_fd) {
+ if (emit_class_init_start(s, cf))
+ goto fail;
+ }
+ if (name == JS_ATOM_NULL ) {
+ /* save the computed field name into a variable */
+ field_var_name = js_atom_concat_num(ctx, JS_ATOM_computed_field + is_static, cf->computed_fields_count);
+ if (field_var_name == JS_ATOM_NULL)
+ goto fail;
+ if (define_var(s, fd, field_var_name, JS_VAR_DEF_CONST) < 0) {
+ JS_FreeAtom(ctx, field_var_name);
+ goto fail;
+ }
+ emit_op(s, OP_to_propkey);
+ emit_op(s, OP_scope_put_var_init);
+ emit_atom(s, field_var_name);
+ emit_u16(s, s->cur_func->scope_level);
+ }
+ s->cur_func = cf->fields_init_fd;
+ emit_op(s, OP_scope_get_var);
+ emit_atom(s, JS_ATOM_this);
+ emit_u16(s, 0);
+
+ if (name == JS_ATOM_NULL) {
+ emit_op(s, OP_scope_get_var);
+ emit_atom(s, field_var_name);
+ emit_u16(s, s->cur_func->scope_level);
+ cf->computed_fields_count++;
+ JS_FreeAtom(ctx, field_var_name);
+ } else if (is_private) {
+ emit_op(s, OP_scope_get_var);
+ emit_atom(s, name);
+ emit_u16(s, s->cur_func->scope_level);
+ }
+
+ if (s->token.val == '=') {
+ if (next_token(s))
+ goto fail;
+ if (js_parse_assign_expr(s))
+ goto fail;
+ } else {
+ emit_op(s, OP_undefined);
+ }
+ if (is_private) {
+ set_object_name_computed(s);
+ emit_op(s, OP_define_private_field);
+ } else if (name == JS_ATOM_NULL) {
+ set_object_name_computed(s);
+ emit_op(s, OP_define_array_el);
+ emit_op(s, OP_drop);
+ } else {
+ set_object_name(s, name);
+ emit_op(s, OP_define_field);
+ emit_atom(s, name);
+ }
+ s->cur_func = s->cur_func->parent;
+ if (js_parse_expect_semi(s))
+ goto fail;
+ } else {
+ JSParseFunctionEnum func_type;
+ JSFunctionKindEnum func_kind;
+
+ func_type = JS_PARSE_FUNC_METHOD;
+ func_kind = JS_FUNC_NORMAL;
+ if (prop_type == PROP_TYPE_STAR) {
+ func_kind = JS_FUNC_GENERATOR;
+ } else if (prop_type == PROP_TYPE_ASYNC) {
+ func_kind = JS_FUNC_ASYNC;
+ } else if (prop_type == PROP_TYPE_ASYNC_STAR) {
+ func_kind = JS_FUNC_ASYNC_GENERATOR;
+ } else if (name == JS_ATOM_constructor && !is_static) {
+ if (ctor_fd) {
+ js_parse_error(s, "property constructor appears more than once");
+ goto fail;
+ }
+ if (class_flags & JS_DEFINE_CLASS_HAS_HERITAGE)
+ func_type = JS_PARSE_FUNC_DERIVED_CLASS_CONSTRUCTOR;
+ else
+ func_type = JS_PARSE_FUNC_CLASS_CONSTRUCTOR;
+ }
+ if (is_private) {
+ class_fields[is_static].need_brand = TRUE;
+ }
+ if (js_parse_function_decl2(s, func_type, func_kind, JS_ATOM_NULL, start_ptr, s->token.line_num, JS_PARSE_EXPORT_NONE, &method_fd))
+ goto fail;
+ if (func_type == JS_PARSE_FUNC_DERIVED_CLASS_CONSTRUCTOR ||
+ func_type == JS_PARSE_FUNC_CLASS_CONSTRUCTOR) {
+ ctor_fd = method_fd;
+ } else if (is_private) {
+ method_fd->need_home_object = TRUE; /* needed for brand check */
+ if (find_private_class_field(ctx, fd, name,
+ fd->scope_level) >= 0) {
+ private_field_already_defined:
+ js_parse_error(s, "private class field is already defined");
+ goto fail;
+ }
+ if (add_private_class_field(s, fd, name,
+ JS_VAR_PRIVATE_METHOD, is_static) < 0)
+ goto fail;
+ emit_op(s, OP_set_home_object);
+ emit_op(s, OP_set_name);
+ emit_atom(s, name);
+ emit_op(s, OP_scope_put_var_init);
+ emit_atom(s, name);
+ emit_u16(s, s->cur_func->scope_level);
+ } else {
+ if (name == JS_ATOM_NULL) {
+ emit_op(s, OP_define_method_computed);
+ } else {
+ emit_op(s, OP_define_method);
+ emit_atom(s, name);
+ }
+ emit_u8(s, OP_DEFINE_METHOD_METHOD);
+ }
+ }
+ if (is_static)
+ emit_op(s, OP_swap);
+ JS_FreeAtom(ctx, name);
+ name = JS_ATOM_NULL;
+ }
+
+ if (s->token.val != '}') {
+ js_parse_error(s, "expecting '%c'", '}');
+ goto fail;
+ }
+
+ if (!ctor_fd) {
+ if (js_parse_class_default_ctor(s, class_flags & JS_DEFINE_CLASS_HAS_HERITAGE, &ctor_fd))
+ goto fail;
+ }
+ /* patch the constant pool index for the constructor */
+ put_u32(fd->byte_code.buf + ctor_cpool_offset, ctor_fd->parent_cpool_idx);
+
+ /* store the class source code in the constructor. */
+ if (!(fd->js_mode & JS_MODE_STRIP)) {
+ js_free(ctx, ctor_fd->source);
+ ctor_fd->source_len = s->buf_ptr - class_start_ptr;
+ ctor_fd->source = js_strndup(ctx, (const char *)class_start_ptr,
+ ctor_fd->source_len);
+ if (!ctor_fd->source)
+ goto fail;
+ }
+
+ /* consume the '}' */
+ if (next_token(s))
+ goto fail;
+
+ {
+ ClassFieldsDef *cf = &class_fields[0];
+ int var_idx;
+
+ if (cf->need_brand) {
+ /* add a private brand to the prototype */
+ emit_op(s, OP_dup);
+ emit_op(s, OP_null);
+ emit_op(s, OP_swap);
+ emit_op(s, OP_add_brand);
+
+ /* define the brand field in 'this' of the initializer */
+ if (!cf->fields_init_fd) {
+ if (emit_class_init_start(s, cf))
+ goto fail;
+ }
+ /* patch the start of the function to enable the
+ OP_add_brand_instance code */
+ cf->fields_init_fd->byte_code.buf[cf->brand_push_pos] = OP_push_true;
+ }
+
+ /* store the function to initialize the fields to that it can be
+ referenced by the constructor */
+ var_idx = define_var(s, fd, JS_ATOM_class_fields_init,
+ JS_VAR_DEF_CONST);
+ if (var_idx < 0)
+ goto fail;
+ if (cf->fields_init_fd) {
+ emit_class_init_end(s, cf);
+ } else {
+ emit_op(s, OP_undefined);
+ }
+ emit_op(s, OP_scope_put_var_init);
+ emit_atom(s, JS_ATOM_class_fields_init);
+ emit_u16(s, s->cur_func->scope_level);
+ }
+
+ /* drop the prototype */
+ emit_op(s, OP_drop);
+
+ if (class_fields[1].need_brand) {
+ /* add a private brand to the class */
+ emit_op(s, OP_dup);
+ emit_op(s, OP_dup);
+ emit_op(s, OP_add_brand);
+ }
+
+ if (class_name != JS_ATOM_NULL) {
+ /* store the class name in the scoped class name variable (it
+ is independent from the class statement variable
+ definition) */
+ emit_op(s, OP_dup);
+ emit_op(s, OP_scope_put_var_init);
+ emit_atom(s, class_name);
+ emit_u16(s, fd->scope_level);
+ }
+
+ /* initialize the static fields */
+ if (class_fields[1].fields_init_fd != NULL) {
+ ClassFieldsDef *cf = &class_fields[1];
+ emit_op(s, OP_dup);
+ emit_class_init_end(s, cf);
+ emit_op(s, OP_call_method);
+ emit_u16(s, 0);
+ emit_op(s, OP_drop);
+ }
+
+ pop_scope(s);
+ pop_scope(s);
+
+ /* the class statements have a block level scope */
+ if (class_var_name != JS_ATOM_NULL) {
+ if (define_var(s, fd, class_var_name, JS_VAR_DEF_LET) < 0)
+ goto fail;
+ emit_op(s, OP_scope_put_var_init);
+ emit_atom(s, class_var_name);
+ emit_u16(s, fd->scope_level);
+ } else {
+ if (class_name == JS_ATOM_NULL) {
+ /* cannot use OP_set_name because the name of the class
+ must be defined before the static initializers are
+ executed */
+ emit_op(s, OP_set_class_name);
+ emit_u32(s, fd->last_opcode_pos + 1 - define_class_offset);
+ }
+ }
+
+ if (export_flag != JS_PARSE_EXPORT_NONE) {
+ if (!add_export_entry(s, fd->module,
+ class_var_name,
+ export_flag == JS_PARSE_EXPORT_NAMED ? class_var_name : JS_ATOM_default,
+ JS_EXPORT_TYPE_LOCAL))
+ goto fail;
+ }
+
+ JS_FreeAtom(ctx, class_name);
+ JS_FreeAtom(ctx, class_var_name);
+ fd->js_mode = saved_js_mode;
+ return 0;
+ fail:
+ JS_FreeAtom(ctx, name);
+ JS_FreeAtom(ctx, class_name);
+ JS_FreeAtom(ctx, class_var_name);
+ fd->js_mode = saved_js_mode;
+ return -1;
+}
+
+static __exception int js_parse_array_literal(JSParseState *s)
+{
+ uint32_t idx;
+ BOOL need_length;
+
+ if (next_token(s))
+ return -1;
+ /* small regular arrays are created on the stack */
+ idx = 0;
+ while (s->token.val != ']' && idx < 32) {
+ if (s->token.val == ',' || s->token.val == TOK_ELLIPSIS)
+ break;
+ if (js_parse_assign_expr(s))
+ return -1;
+ idx++;
+ /* accept trailing comma */
+ if (s->token.val == ',') {
+ if (next_token(s))
+ return -1;
+ } else
+ if (s->token.val != ']')
+ goto done;
+ }
+ emit_op(s, OP_array_from);
+ emit_u16(s, idx);
+
+ /* larger arrays and holes are handled with explicit indices */
+ need_length = FALSE;
+ while (s->token.val != ']' && idx < 0x7fffffff) {
+ if (s->token.val == TOK_ELLIPSIS)
+ break;
+ need_length = TRUE;
+ if (s->token.val != ',') {
+ if (js_parse_assign_expr(s))
+ return -1;
+ emit_op(s, OP_define_field);
+ emit_u32(s, __JS_AtomFromUInt32(idx));
+ need_length = FALSE;
+ }
+ idx++;
+ /* accept trailing comma */
+ if (s->token.val == ',') {
+ if (next_token(s))
+ return -1;
+ }
+ }
+ if (s->token.val == ']') {
+ if (need_length) {
+ /* Set the length: Cannot use OP_define_field because
+ length is not configurable */
+ emit_op(s, OP_dup);
+ emit_op(s, OP_push_i32);
+ emit_u32(s, idx);
+ emit_op(s, OP_put_field);
+ emit_atom(s, JS_ATOM_length);
+ }
+ goto done;
+ }
+
+ /* huge arrays and spread elements require a dynamic index on the stack */
+ emit_op(s, OP_push_i32);
+ emit_u32(s, idx);
+
+ /* stack has array, index */
+ while (s->token.val != ']') {
+ if (s->token.val == TOK_ELLIPSIS) {
+ if (next_token(s))
+ return -1;
+ if (js_parse_assign_expr(s))
+ return -1;
+#if 1
+ emit_op(s, OP_append);
+#else
+ int label_next, label_done;
+ label_next = new_label(s);
+ label_done = new_label(s);
+ /* enumerate object */
+ emit_op(s, OP_for_of_start);
+ emit_op(s, OP_rot5l);
+ emit_op(s, OP_rot5l);
+ emit_label(s, label_next);
+ /* on stack: enum_rec array idx */
+ emit_op(s, OP_for_of_next);
+ emit_u8(s, 2);
+ emit_goto(s, OP_if_true, label_done);
+ /* append element */
+ /* enum_rec array idx val -> enum_rec array new_idx */
+ emit_op(s, OP_define_array_el);
+ emit_op(s, OP_inc);
+ emit_goto(s, OP_goto, label_next);
+ emit_label(s, label_done);
+ /* close enumeration */
+ emit_op(s, OP_drop); /* drop undef val */
+ emit_op(s, OP_nip1); /* drop enum_rec */
+ emit_op(s, OP_nip1);
+ emit_op(s, OP_nip1);
+#endif
+ } else {
+ need_length = TRUE;
+ if (s->token.val != ',') {
+ if (js_parse_assign_expr(s))
+ return -1;
+ /* a idx val */
+ emit_op(s, OP_define_array_el);
+ need_length = FALSE;
+ }
+ emit_op(s, OP_inc);
+ }
+ if (s->token.val != ',')
+ break;
+ if (next_token(s))
+ return -1;
+ }
+ if (need_length) {
+ /* Set the length: cannot use OP_define_field because
+ length is not configurable */
+ emit_op(s, OP_dup1); /* array length - array array length */
+ emit_op(s, OP_put_field);
+ emit_atom(s, JS_ATOM_length);
+ } else {
+ emit_op(s, OP_drop); /* array length - array */
+ }
+done:
+ return js_parse_expect(s, ']');
+}
+
+/* XXX: remove */
+static BOOL has_with_scope(JSFunctionDef *s, int scope_level)
+{
+ /* check if scope chain contains a with statement */
+ while (s) {
+ int scope_idx = s->scopes[scope_level].first;
+ while (scope_idx >= 0) {
+ JSVarDef *vd = &s->vars[scope_idx];
+
+ if (vd->var_name == JS_ATOM__with_)
+ return TRUE;
+ scope_idx = vd->scope_next;
+ }
+ /* check parent scopes */
+ scope_level = s->parent_scope_level;
+ s = s->parent;
+ }
+ return FALSE;
+}
+
+static __exception int get_lvalue(JSParseState *s, int *popcode, int *pscope,
+ JSAtom *pname, int *plabel, int *pdepth, BOOL keep,
+ int tok)
+{
+ JSFunctionDef *fd;
+ int opcode, scope, label, depth;
+ JSAtom name;
+
+ /* we check the last opcode to get the lvalue type */
+ fd = s->cur_func;
+ scope = 0;
+ name = JS_ATOM_NULL;
+ label = -1;
+ depth = 0;
+ switch(opcode = get_prev_opcode(fd)) {
+ case OP_scope_get_var:
+ name = get_u32(fd->byte_code.buf + fd->last_opcode_pos + 1);
+ scope = get_u16(fd->byte_code.buf + fd->last_opcode_pos + 5);
+ if ((name == JS_ATOM_arguments || name == JS_ATOM_eval) &&
+ (fd->js_mode & JS_MODE_STRICT)) {
+ return js_parse_error(s, "invalid lvalue in strict mode");
+ }
+ if (name == JS_ATOM_this || name == JS_ATOM_new_target)
+ goto invalid_lvalue;
+ depth = 2; /* will generate OP_get_ref_value */
+ break;
+ case OP_get_field:
+ name = get_u32(fd->byte_code.buf + fd->last_opcode_pos + 1);
+ depth = 1;
+ break;
+ case OP_scope_get_private_field:
+ name = get_u32(fd->byte_code.buf + fd->last_opcode_pos + 1);
+ scope = get_u16(fd->byte_code.buf + fd->last_opcode_pos + 5);
+ depth = 1;
+ break;
+ case OP_get_array_el:
+ depth = 2;
+ break;
+ case OP_get_super_value:
+ depth = 3;
+ break;
+ default:
+ invalid_lvalue:
+ if (tok == TOK_FOR) {
+ return js_parse_error(s, "invalid for in/of left hand-side");
+ } else if (tok == TOK_INC || tok == TOK_DEC) {
+ return js_parse_error(s, "invalid increment/decrement operand");
+ } else if (tok == '[' || tok == '{') {
+ return js_parse_error(s, "invalid destructuring target");
+ } else {
+ return js_parse_error(s, "invalid assignment left-hand side");
+ }
+ }
+ /* remove the last opcode */
+ fd->byte_code.size = fd->last_opcode_pos;
+ fd->last_opcode_pos = -1;
+
+ if (keep) {
+ /* get the value but keep the object/fields on the stack */
+ switch(opcode) {
+ case OP_scope_get_var:
+ label = new_label(s);
+ emit_op(s, OP_scope_make_ref);
+ emit_atom(s, name);
+ emit_u32(s, label);
+ emit_u16(s, scope);
+ update_label(fd, label, 1);
+ emit_op(s, OP_get_ref_value);
+ opcode = OP_get_ref_value;
+ break;
+ case OP_get_field:
+ emit_op(s, OP_get_field2);
+ emit_atom(s, name);
+ break;
+ case OP_scope_get_private_field:
+ emit_op(s, OP_scope_get_private_field2);
+ emit_atom(s, name);
+ emit_u16(s, scope);
+ break;
+ case OP_get_array_el:
+ /* XXX: replace by a single opcode ? */
+ emit_op(s, OP_to_propkey2);
+ emit_op(s, OP_dup2);
+ emit_op(s, OP_get_array_el);
+ break;
+ case OP_get_super_value:
+ emit_op(s, OP_to_propkey);
+ emit_op(s, OP_dup3);
+ emit_op(s, OP_get_super_value);
+ break;
+ default:
+ abort();
+ }
+ } else {
+ switch(opcode) {
+ case OP_scope_get_var:
+ label = new_label(s);
+ emit_op(s, OP_scope_make_ref);
+ emit_atom(s, name);
+ emit_u32(s, label);
+ emit_u16(s, scope);
+ update_label(fd, label, 1);
+ opcode = OP_get_ref_value;
+ break;
+ case OP_get_array_el:
+ emit_op(s, OP_to_propkey2);
+ break;
+ case OP_get_super_value:
+ emit_op(s, OP_to_propkey);
+ break;
+ }
+ }
+
+ *popcode = opcode;
+ *pscope = scope;
+ /* name has refcount for OP_get_field and OP_get_ref_value,
+ and JS_ATOM_NULL for other opcodes */
+ *pname = name;
+ *plabel = label;
+ if (pdepth)
+ *pdepth = depth;
+ return 0;
+}
+
+typedef enum {
+ PUT_LVALUE_NOKEEP, /* [depth] v -> */
+ PUT_LVALUE_NOKEEP_DEPTH, /* [depth] v -> , keep depth (currently
+ just disable optimizations) */
+ PUT_LVALUE_KEEP_TOP, /* [depth] v -> v */
+ PUT_LVALUE_KEEP_SECOND, /* [depth] v0 v -> v0 */
+ PUT_LVALUE_NOKEEP_BOTTOM, /* v [depth] -> */
+} PutLValueEnum;
+
+/* name has a live reference. 'is_let' is only used with opcode =
+ OP_scope_get_var which is never generated by get_lvalue(). */
+static void put_lvalue(JSParseState *s, int opcode, int scope,
+ JSAtom name, int label, PutLValueEnum special,
+ BOOL is_let)
+{
+ switch(opcode) {
+ case OP_get_field:
+ case OP_scope_get_private_field:
+ /* depth = 1 */
+ switch(special) {
+ case PUT_LVALUE_NOKEEP:
+ case PUT_LVALUE_NOKEEP_DEPTH:
+ break;
+ case PUT_LVALUE_KEEP_TOP:
+ emit_op(s, OP_insert2); /* obj v -> v obj v */
+ break;
+ case PUT_LVALUE_KEEP_SECOND:
+ emit_op(s, OP_perm3); /* obj v0 v -> v0 obj v */
+ break;
+ case PUT_LVALUE_NOKEEP_BOTTOM:
+ emit_op(s, OP_swap);
+ break;
+ default:
+ abort();
+ }
+ break;
+ case OP_get_array_el:
+ case OP_get_ref_value:
+ /* depth = 2 */
+ if (opcode == OP_get_ref_value) {
+ JS_FreeAtom(s->ctx, name);
+ emit_label(s, label);
+ }
+ switch(special) {
+ case PUT_LVALUE_NOKEEP:
+ emit_op(s, OP_nop); /* will trigger optimization */
+ break;
+ case PUT_LVALUE_NOKEEP_DEPTH:
+ break;
+ case PUT_LVALUE_KEEP_TOP:
+ emit_op(s, OP_insert3); /* obj prop v -> v obj prop v */
+ break;
+ case PUT_LVALUE_KEEP_SECOND:
+ emit_op(s, OP_perm4); /* obj prop v0 v -> v0 obj prop v */
+ break;
+ case PUT_LVALUE_NOKEEP_BOTTOM:
+ emit_op(s, OP_rot3l);
+ break;
+ default:
+ abort();
+ }
+ break;
+ case OP_get_super_value:
+ /* depth = 3 */
+ switch(special) {
+ case PUT_LVALUE_NOKEEP:
+ case PUT_LVALUE_NOKEEP_DEPTH:
+ break;
+ case PUT_LVALUE_KEEP_TOP:
+ emit_op(s, OP_insert4); /* this obj prop v -> v this obj prop v */
+ break;
+ case PUT_LVALUE_KEEP_SECOND:
+ emit_op(s, OP_perm5); /* this obj prop v0 v -> v0 this obj prop v */
+ break;
+ case PUT_LVALUE_NOKEEP_BOTTOM:
+ emit_op(s, OP_rot4l);
+ break;
+ default:
+ abort();
+ }
+ break;
+ default:
+ break;
+ }
+
+ switch(opcode) {
+ case OP_scope_get_var: /* val -- */
+ assert(special == PUT_LVALUE_NOKEEP ||
+ special == PUT_LVALUE_NOKEEP_DEPTH);
+ emit_op(s, is_let ? OP_scope_put_var_init : OP_scope_put_var);
+ emit_u32(s, name); /* has refcount */
+ emit_u16(s, scope);
+ break;
+ case OP_get_field:
+ emit_op(s, OP_put_field);
+ emit_u32(s, name); /* name has refcount */
+ break;
+ case OP_scope_get_private_field:
+ emit_op(s, OP_scope_put_private_field);
+ emit_u32(s, name); /* name has refcount */
+ emit_u16(s, scope);
+ break;
+ case OP_get_array_el:
+ emit_op(s, OP_put_array_el);
+ break;
+ case OP_get_ref_value:
+ emit_op(s, OP_put_ref_value);
+ break;
+ case OP_get_super_value:
+ emit_op(s, OP_put_super_value);
+ break;
+ default:
+ abort();
+ }
+}
+
+static __exception int js_parse_expr_paren(JSParseState *s)
+{
+ if (js_parse_expect(s, '('))
+ return -1;
+ if (js_parse_expr(s))
+ return -1;
+ if (js_parse_expect(s, ')'))
+ return -1;
+ return 0;
+}
+
+static int js_unsupported_keyword(JSParseState *s, JSAtom atom)
+{
+ char buf[ATOM_GET_STR_BUF_SIZE];
+ return js_parse_error(s, "unsupported keyword: %s",
+ JS_AtomGetStr(s->ctx, buf, sizeof(buf), atom));
+}
+
+static __exception int js_define_var(JSParseState *s, JSAtom name, int tok)
+{
+ JSFunctionDef *fd = s->cur_func;
+ JSVarDefEnum var_def_type;
+
+ if (name == JS_ATOM_yield && fd->func_kind == JS_FUNC_GENERATOR) {
+ return js_parse_error(s, "yield is a reserved identifier");
+ }
+ if ((name == JS_ATOM_arguments || name == JS_ATOM_eval)
+ && (fd->js_mode & JS_MODE_STRICT)) {
+ return js_parse_error(s, "invalid variable name in strict mode");
+ }
+ if ((name == JS_ATOM_let || name == JS_ATOM_undefined)
+ && (tok == TOK_LET || tok == TOK_CONST)) {
+ return js_parse_error(s, "invalid lexical variable name");
+ }
+ switch(tok) {
+ case TOK_LET:
+ var_def_type = JS_VAR_DEF_LET;
+ break;
+ case TOK_CONST:
+ var_def_type = JS_VAR_DEF_CONST;
+ break;
+ case TOK_VAR:
+ var_def_type = JS_VAR_DEF_VAR;
+ break;
+ case TOK_CATCH:
+ var_def_type = JS_VAR_DEF_CATCH;
+ break;
+ default:
+ abort();
+ }
+ if (define_var(s, fd, name, var_def_type) < 0)
+ return -1;
+ return 0;
+}
+
+static void js_emit_spread_code(JSParseState *s, int depth)
+{
+ int label_rest_next, label_rest_done;
+
+ /* XXX: could check if enum object is an actual array and optimize
+ slice extraction. enumeration record and target array are in a
+ different order from OP_append case. */
+ /* enum_rec xxx -- enum_rec xxx array 0 */
+ emit_op(s, OP_array_from);
+ emit_u16(s, 0);
+ emit_op(s, OP_push_i32);
+ emit_u32(s, 0);
+ emit_label(s, label_rest_next = new_label(s));
+ emit_op(s, OP_for_of_next);
+ emit_u8(s, 2 + depth);
+ label_rest_done = emit_goto(s, OP_if_true, -1);
+ /* array idx val -- array idx */
+ emit_op(s, OP_define_array_el);
+ emit_op(s, OP_inc);
+ emit_goto(s, OP_goto, label_rest_next);
+ emit_label(s, label_rest_done);
+ /* enum_rec xxx array idx undef -- enum_rec xxx array */
+ emit_op(s, OP_drop);
+ emit_op(s, OP_drop);
+}
+
+static int js_parse_check_duplicate_parameter(JSParseState *s, JSAtom name)
+{
+ /* Check for duplicate parameter names */
+ JSFunctionDef *fd = s->cur_func;
+ int i;
+ for (i = 0; i < fd->arg_count; i++) {
+ if (fd->args[i].var_name == name)
+ goto duplicate;
+ }
+ for (i = 0; i < fd->var_count; i++) {
+ if (fd->vars[i].var_name == name)
+ goto duplicate;
+ }
+ return 0;
+
+duplicate:
+ return js_parse_error(s, "duplicate parameter names not allowed in this context");
+}
+
+static JSAtom js_parse_destructuring_var(JSParseState *s, int tok, int is_arg)
+{
+ JSAtom name;
+
+ if (!(s->token.val == TOK_IDENT && !s->token.u.ident.is_reserved)
+ || ((s->cur_func->js_mode & JS_MODE_STRICT) &&
+ (s->token.u.ident.atom == JS_ATOM_eval || s->token.u.ident.atom == JS_ATOM_arguments))) {
+ js_parse_error(s, "invalid destructuring target");
+ return JS_ATOM_NULL;
+ }
+ name = JS_DupAtom(s->ctx, s->token.u.ident.atom);
+ if (is_arg && js_parse_check_duplicate_parameter(s, name))
+ goto fail;
+ if (next_token(s))
+ goto fail;
+
+ return name;
+fail:
+ JS_FreeAtom(s->ctx, name);
+ return JS_ATOM_NULL;
+}
+
+/* Return -1 if error, 0 if no initializer, 1 if an initializer is
+ present at the top level. */
+static int js_parse_destructuring_element(JSParseState *s, int tok, int is_arg,
+ int hasval, int has_ellipsis,
+ BOOL allow_initializer)
+{
+ int label_parse, label_assign, label_done, label_lvalue, depth_lvalue;
+ int start_addr, assign_addr;
+ JSAtom prop_name, var_name;
+ int opcode, scope, tok1, skip_bits;
+ BOOL has_initializer;
+
+ if (has_ellipsis < 0) {
+ /* pre-parse destructuration target for spread detection */
+ js_parse_skip_parens_token(s, &skip_bits, FALSE);
+ has_ellipsis = skip_bits & SKIP_HAS_ELLIPSIS;
+ }
+
+ label_parse = new_label(s);
+ label_assign = new_label(s);
+
+ start_addr = s->cur_func->byte_code.size;
+ if (hasval) {
+ /* consume value from the stack */
+ emit_op(s, OP_dup);
+ emit_op(s, OP_undefined);
+ emit_op(s, OP_strict_eq);
+ emit_goto(s, OP_if_true, label_parse);
+ emit_label(s, label_assign);
+ } else {
+ emit_goto(s, OP_goto, label_parse);
+ emit_label(s, label_assign);
+ /* leave value on the stack */
+ emit_op(s, OP_dup);
+ }
+ assign_addr = s->cur_func->byte_code.size;
+ if (s->token.val == '{') {
+ if (next_token(s))
+ return -1;
+ /* throw an exception if the value cannot be converted to an object */
+ emit_op(s, OP_to_object);
+ if (has_ellipsis) {
+ /* add excludeList on stack just below src object */
+ emit_op(s, OP_object);
+ emit_op(s, OP_swap);
+ }
+ while (s->token.val != '}') {
+ int prop_type;
+ if (s->token.val == TOK_ELLIPSIS) {
+ if (!has_ellipsis) {
+ JS_ThrowInternalError(s->ctx, "unexpected ellipsis token");
+ return -1;
+ }
+ if (next_token(s))
+ return -1;
+ if (tok) {
+ var_name = js_parse_destructuring_var(s, tok, is_arg);
+ if (var_name == JS_ATOM_NULL)
+ return -1;
+ opcode = OP_scope_get_var;
+ scope = s->cur_func->scope_level;
+ label_lvalue = -1;
+ depth_lvalue = 0;
+ } else {
+ if (js_parse_left_hand_side_expr(s))
+ return -1;
+
+ if (get_lvalue(s, &opcode, &scope, &var_name,
+ &label_lvalue, &depth_lvalue, FALSE, '{'))
+ return -1;
+ }
+ if (s->token.val != '}') {
+ js_parse_error(s, "assignment rest property must be last");
+ goto var_error;
+ }
+ emit_op(s, OP_object); /* target */
+ emit_op(s, OP_copy_data_properties);
+ emit_u8(s, 0 | ((depth_lvalue + 1) << 2) | ((depth_lvalue + 2) << 5));
+ goto set_val;
+ }
+ prop_type = js_parse_property_name(s, &prop_name, FALSE, TRUE, FALSE);
+ if (prop_type < 0)
+ return -1;
+ var_name = JS_ATOM_NULL;
+ opcode = OP_scope_get_var;
+ scope = s->cur_func->scope_level;
+ label_lvalue = -1;
+ depth_lvalue = 0;
+ if (prop_type == PROP_TYPE_IDENT) {
+ if (next_token(s))
+ goto prop_error;
+ if ((s->token.val == '[' || s->token.val == '{')
+ && ((tok1 = js_parse_skip_parens_token(s, &skip_bits, FALSE)) == ',' ||
+ tok1 == '=' || tok1 == '}')) {
+ if (prop_name == JS_ATOM_NULL) {
+ /* computed property name on stack */
+ if (has_ellipsis) {
+ /* define the property in excludeList */
+ emit_op(s, OP_to_propkey); /* avoid calling ToString twice */
+ emit_op(s, OP_perm3); /* TOS: src excludeList prop */
+ emit_op(s, OP_null); /* TOS: src excludeList prop null */
+ emit_op(s, OP_define_array_el); /* TOS: src excludeList prop */
+ emit_op(s, OP_perm3); /* TOS: excludeList src prop */
+ }
+ /* get the computed property from the source object */
+ emit_op(s, OP_get_array_el2);
+ } else {
+ /* named property */
+ if (has_ellipsis) {
+ /* define the property in excludeList */
+ emit_op(s, OP_swap); /* TOS: src excludeList */
+ emit_op(s, OP_null); /* TOS: src excludeList null */
+ emit_op(s, OP_define_field); /* TOS: src excludeList */
+ emit_atom(s, prop_name);
+ emit_op(s, OP_swap); /* TOS: excludeList src */
+ }
+ /* get the named property from the source object */
+ emit_op(s, OP_get_field2);
+ emit_u32(s, prop_name);
+ }
+ if (js_parse_destructuring_element(s, tok, is_arg, TRUE, -1, TRUE) < 0)
+ return -1;
+ if (s->token.val == '}')
+ break;
+ /* accept a trailing comma before the '}' */
+ if (js_parse_expect(s, ','))
+ return -1;
+ continue;
+ }
+ if (prop_name == JS_ATOM_NULL) {
+ emit_op(s, OP_to_propkey2);
+ if (has_ellipsis) {
+ /* define the property in excludeList */
+ emit_op(s, OP_perm3);
+ emit_op(s, OP_null);
+ emit_op(s, OP_define_array_el);
+ emit_op(s, OP_perm3);
+ }
+ /* source prop -- source source prop */
+ emit_op(s, OP_dup1);
+ } else {
+ if (has_ellipsis) {
+ /* define the property in excludeList */
+ emit_op(s, OP_swap);
+ emit_op(s, OP_null);
+ emit_op(s, OP_define_field);
+ emit_atom(s, prop_name);
+ emit_op(s, OP_swap);
+ }
+ /* source -- source source */
+ emit_op(s, OP_dup);
+ }
+ if (tok) {
+ var_name = js_parse_destructuring_var(s, tok, is_arg);
+ if (var_name == JS_ATOM_NULL)
+ goto prop_error;
+ } else {
+ if (js_parse_left_hand_side_expr(s))
+ goto prop_error;
+ lvalue:
+ if (get_lvalue(s, &opcode, &scope, &var_name,
+ &label_lvalue, &depth_lvalue, FALSE, '{'))
+ goto prop_error;
+ /* swap ref and lvalue object if any */
+ if (prop_name == JS_ATOM_NULL) {
+ switch(depth_lvalue) {
+ case 1:
+ /* source prop x -> x source prop */
+ emit_op(s, OP_rot3r);
+ break;
+ case 2:
+ /* source prop x y -> x y source prop */
+ emit_op(s, OP_swap2); /* t p2 s p1 */
+ break;
+ case 3:
+ /* source prop x y z -> x y z source prop */
+ emit_op(s, OP_rot5l);
+ emit_op(s, OP_rot5l);
+ break;
+ }
+ } else {
+ switch(depth_lvalue) {
+ case 1:
+ /* source x -> x source */
+ emit_op(s, OP_swap);
+ break;
+ case 2:
+ /* source x y -> x y source */
+ emit_op(s, OP_rot3l);
+ break;
+ case 3:
+ /* source x y z -> x y z source */
+ emit_op(s, OP_rot4l);
+ break;
+ }
+ }
+ }
+ if (prop_name == JS_ATOM_NULL) {
+ /* computed property name on stack */
+ /* XXX: should have OP_get_array_el2x with depth */
+ /* source prop -- val */
+ emit_op(s, OP_get_array_el);
+ } else {
+ /* named property */
+ /* XXX: should have OP_get_field2x with depth */
+ /* source -- val */
+ emit_op(s, OP_get_field);
+ emit_u32(s, prop_name);
+ }
+ } else {
+ /* prop_type = PROP_TYPE_VAR, cannot be a computed property */
+ if (is_arg && js_parse_check_duplicate_parameter(s, prop_name))
+ goto prop_error;
+ if ((s->cur_func->js_mode & JS_MODE_STRICT) &&
+ (prop_name == JS_ATOM_eval || prop_name == JS_ATOM_arguments)) {
+ js_parse_error(s, "invalid destructuring target");
+ goto prop_error;
+ }
+ if (has_ellipsis) {
+ /* define the property in excludeList */
+ emit_op(s, OP_swap);
+ emit_op(s, OP_null);
+ emit_op(s, OP_define_field);
+ emit_atom(s, prop_name);
+ emit_op(s, OP_swap);
+ }
+ if (!tok || tok == TOK_VAR) {
+ /* generate reference */
+ /* source -- source source */
+ emit_op(s, OP_dup);
+ emit_op(s, OP_scope_get_var);
+ emit_atom(s, prop_name);
+ emit_u16(s, s->cur_func->scope_level);
+ goto lvalue;
+ }
+ var_name = JS_DupAtom(s->ctx, prop_name);
+ /* source -- source val */
+ emit_op(s, OP_get_field2);
+ emit_u32(s, prop_name);
+ }
+ set_val:
+ if (tok) {
+ if (js_define_var(s, var_name, tok))
+ goto var_error;
+ scope = s->cur_func->scope_level;
+ }
+ if (s->token.val == '=') { /* handle optional default value */
+ int label_hasval;
+ emit_op(s, OP_dup);
+ emit_op(s, OP_undefined);
+ emit_op(s, OP_strict_eq);
+ label_hasval = emit_goto(s, OP_if_false, -1);
+ if (next_token(s))
+ goto var_error;
+ emit_op(s, OP_drop);
+ if (js_parse_assign_expr(s))
+ goto var_error;
+ if (opcode == OP_scope_get_var || opcode == OP_get_ref_value)
+ set_object_name(s, var_name);
+ emit_label(s, label_hasval);
+ }
+ /* store value into lvalue object */
+ put_lvalue(s, opcode, scope, var_name, label_lvalue,
+ PUT_LVALUE_NOKEEP_DEPTH,
+ (tok == TOK_CONST || tok == TOK_LET));
+ if (s->token.val == '}')
+ break;
+ /* accept a trailing comma before the '}' */
+ if (js_parse_expect(s, ','))
+ return -1;
+ }
+ /* drop the source object */
+ emit_op(s, OP_drop);
+ if (has_ellipsis) {
+ emit_op(s, OP_drop); /* pop excludeList */
+ }
+ if (next_token(s))
+ return -1;
+ } else if (s->token.val == '[') {
+ BOOL has_spread;
+ int enum_depth;
+ BlockEnv block_env;
+
+ if (next_token(s))
+ return -1;
+ /* the block environment is only needed in generators in case
+ 'yield' triggers a 'return' */
+ push_break_entry(s->cur_func, &block_env,
+ JS_ATOM_NULL, -1, -1, 2);
+ block_env.has_iterator = TRUE;
+ emit_op(s, OP_for_of_start);
+ has_spread = FALSE;
+ while (s->token.val != ']') {
+ /* get the next value */
+ if (s->token.val == TOK_ELLIPSIS) {
+ if (next_token(s))
+ return -1;
+ if (s->token.val == ',' || s->token.val == ']')
+ return js_parse_error(s, "missing binding pattern...");
+ has_spread = TRUE;
+ }
+ if (s->token.val == ',') {
+ /* do nothing, skip the value, has_spread is false */
+ emit_op(s, OP_for_of_next);
+ emit_u8(s, 0);
+ emit_op(s, OP_drop);
+ emit_op(s, OP_drop);
+ } else if ((s->token.val == '[' || s->token.val == '{')
+ && ((tok1 = js_parse_skip_parens_token(s, &skip_bits, FALSE)) == ',' ||
+ tok1 == '=' || tok1 == ']')) {
+ if (has_spread) {
+ if (tok1 == '=')
+ return js_parse_error(s, "rest element cannot have a default value");
+ js_emit_spread_code(s, 0);
+ } else {
+ emit_op(s, OP_for_of_next);
+ emit_u8(s, 0);
+ emit_op(s, OP_drop);
+ }
+ if (js_parse_destructuring_element(s, tok, is_arg, TRUE, skip_bits & SKIP_HAS_ELLIPSIS, TRUE) < 0)
+ return -1;
+ } else {
+ var_name = JS_ATOM_NULL;
+ enum_depth = 0;
+ if (tok) {
+ var_name = js_parse_destructuring_var(s, tok, is_arg);
+ if (var_name == JS_ATOM_NULL)
+ goto var_error;
+ if (js_define_var(s, var_name, tok))
+ goto var_error;
+ opcode = OP_scope_get_var;
+ scope = s->cur_func->scope_level;
+ } else {
+ if (js_parse_left_hand_side_expr(s))
+ return -1;
+ if (get_lvalue(s, &opcode, &scope, &var_name,
+ &label_lvalue, &enum_depth, FALSE, '[')) {
+ return -1;
+ }
+ }
+ if (has_spread) {
+ js_emit_spread_code(s, enum_depth);
+ } else {
+ emit_op(s, OP_for_of_next);
+ emit_u8(s, enum_depth);
+ emit_op(s, OP_drop);
+ }
+ if (s->token.val == '=' && !has_spread) {
+ /* handle optional default value */
+ int label_hasval;
+ emit_op(s, OP_dup);
+ emit_op(s, OP_undefined);
+ emit_op(s, OP_strict_eq);
+ label_hasval = emit_goto(s, OP_if_false, -1);
+ if (next_token(s))
+ goto var_error;
+ emit_op(s, OP_drop);
+ if (js_parse_assign_expr(s))
+ goto var_error;
+ if (opcode == OP_scope_get_var || opcode == OP_get_ref_value)
+ set_object_name(s, var_name);
+ emit_label(s, label_hasval);
+ }
+ /* store value into lvalue object */
+ put_lvalue(s, opcode, scope, var_name,
+ label_lvalue, PUT_LVALUE_NOKEEP_DEPTH,
+ (tok == TOK_CONST || tok == TOK_LET));
+ }
+ if (s->token.val == ']')
+ break;
+ if (has_spread)
+ return js_parse_error(s, "rest element must be the last one");
+ /* accept a trailing comma before the ']' */
+ if (js_parse_expect(s, ','))
+ return -1;
+ }
+ /* close iterator object:
+ if completed, enum_obj has been replaced by undefined */
+ emit_op(s, OP_iterator_close);
+ pop_break_entry(s->cur_func);
+ if (next_token(s))
+ return -1;
+ } else {
+ return js_parse_error(s, "invalid assignment syntax");
+ }
+ if (s->token.val == '=' && allow_initializer) {
+ label_done = emit_goto(s, OP_goto, -1);
+ if (next_token(s))
+ return -1;
+ emit_label(s, label_parse);
+ if (hasval)
+ emit_op(s, OP_drop);
+ if (js_parse_assign_expr(s))
+ return -1;
+ emit_goto(s, OP_goto, label_assign);
+ emit_label(s, label_done);
+ has_initializer = TRUE;
+ } else {
+ /* normally hasval is true except if
+ js_parse_skip_parens_token() was wrong in the parsing */
+ // assert(hasval);
+ if (!hasval) {
+ js_parse_error(s, "too complicated destructuring expression");
+ return -1;
+ }
+ /* remove test and decrement label ref count */
+ memset(s->cur_func->byte_code.buf + start_addr, OP_nop,
+ assign_addr - start_addr);
+ s->cur_func->label_slots[label_parse].ref_count--;
+ has_initializer = FALSE;
+ }
+ return has_initializer;
+
+ prop_error:
+ JS_FreeAtom(s->ctx, prop_name);
+ var_error:
+ JS_FreeAtom(s->ctx, var_name);
+ return -1;
+}
+
+typedef enum FuncCallType {
+ FUNC_CALL_NORMAL,
+ FUNC_CALL_NEW,
+ FUNC_CALL_SUPER_CTOR,
+ FUNC_CALL_TEMPLATE,
+} FuncCallType;
+
+static void optional_chain_test(JSParseState *s, int *poptional_chaining_label,
+ int drop_count)
+{
+ int label_next, i;
+ if (*poptional_chaining_label < 0)
+ *poptional_chaining_label = new_label(s);
+ /* XXX: could be more efficient with a specific opcode */
+ emit_op(s, OP_dup);
+ emit_op(s, OP_is_undefined_or_null);
+ label_next = emit_goto(s, OP_if_false, -1);
+ for(i = 0; i < drop_count; i++)
+ emit_op(s, OP_drop);
+ emit_op(s, OP_undefined);
+ emit_goto(s, OP_goto, *poptional_chaining_label);
+ emit_label(s, label_next);
+}
+
+/* allowed parse_flags: PF_POSTFIX_CALL */
+static __exception int js_parse_postfix_expr(JSParseState *s, int parse_flags)
+{
+ FuncCallType call_type;
+ int optional_chaining_label;
+ BOOL accept_lparen = (parse_flags & PF_POSTFIX_CALL) != 0;
+
+ call_type = FUNC_CALL_NORMAL;
+ switch(s->token.val) {
+ case TOK_NUMBER:
+ {
+ JSValue val;
+ val = s->token.u.num.val;
+
+ if (JS_VALUE_GET_TAG(val) == JS_TAG_INT) {
+ emit_op(s, OP_push_i32);
+ emit_u32(s, JS_VALUE_GET_INT(val));
+ } else
+#ifdef CONFIG_BIGNUM
+ if (JS_VALUE_GET_TAG(val) == JS_TAG_BIG_FLOAT) {
+ slimb_t e;
+ int ret;
+
+ /* need a runtime conversion */
+ /* XXX: could add a cache and/or do it once at
+ the start of the function */
+ if (emit_push_const(s, val, 0) < 0)
+ return -1;
+ e = s->token.u.num.exponent;
+ if (e == (int32_t)e) {
+ emit_op(s, OP_push_i32);
+ emit_u32(s, e);
+ } else {
+ val = JS_NewBigInt64_1(s->ctx, e);
+ if (JS_IsException(val))
+ return -1;
+ ret = emit_push_const(s, val, 0);
+ JS_FreeValue(s->ctx, val);
+ if (ret < 0)
+ return -1;
+ }
+ emit_op(s, OP_mul_pow10);
+ } else
+#endif
+ {
+ if (emit_push_const(s, val, 0) < 0)
+ return -1;
+ }
+ }
+ if (next_token(s))
+ return -1;
+ break;
+ case TOK_TEMPLATE:
+ if (js_parse_template(s, 0, NULL))
+ return -1;
+ break;
+ case TOK_STRING:
+ if (emit_push_const(s, s->token.u.str.str, 1))
+ return -1;
+ if (next_token(s))
+ return -1;
+ break;
+
+ case TOK_DIV_ASSIGN:
+ s->buf_ptr -= 2;
+ goto parse_regexp;
+ case '/':
+ s->buf_ptr--;
+ parse_regexp:
+ {
+ JSValue str;
+ int ret, backtrace_flags;
+ if (!s->ctx->compile_regexp)
+ return js_parse_error(s, "RegExp are not supported");
+ /* the previous token is '/' or '/=', so no need to free */
+ if (js_parse_regexp(s))
+ return -1;
+ ret = emit_push_const(s, s->token.u.regexp.body, 0);
+ str = s->ctx->compile_regexp(s->ctx, s->token.u.regexp.body,
+ s->token.u.regexp.flags);
+ if (JS_IsException(str)) {
+ /* add the line number info */
+ backtrace_flags = 0;
+ if (s->cur_func && s->cur_func->backtrace_barrier)
+ backtrace_flags = JS_BACKTRACE_FLAG_SINGLE_LEVEL;
+ build_backtrace(s->ctx, s->ctx->rt->current_exception,
+ s->filename, s->token.line_num,
+ backtrace_flags);
+ return -1;
+ }
+ ret = emit_push_const(s, str, 0);
+ JS_FreeValue(s->ctx, str);
+ if (ret)
+ return -1;
+ /* we use a specific opcode to be sure the correct
+ function is called (otherwise the bytecode would have
+ to be verified by the RegExp constructor) */
+ emit_op(s, OP_regexp);
+ if (next_token(s))
+ return -1;
+ }
+ break;
+ case '(':
+ if (js_parse_expr_paren(s))
+ return -1;
+ break;
+ case TOK_FUNCTION:
+ if (js_parse_function_decl(s, JS_PARSE_FUNC_EXPR,
+ JS_FUNC_NORMAL, JS_ATOM_NULL,
+ s->token.ptr, s->token.line_num))
+ return -1;
+ break;
+ case TOK_CLASS:
+ if (js_parse_class(s, TRUE, JS_PARSE_EXPORT_NONE))
+ return -1;
+ break;
+ case TOK_NULL:
+ if (next_token(s))
+ return -1;
+ emit_op(s, OP_null);
+ break;
+ case TOK_THIS:
+ if (next_token(s))
+ return -1;
+ emit_op(s, OP_scope_get_var);
+ emit_atom(s, JS_ATOM_this);
+ emit_u16(s, 0);
+ break;
+ case TOK_FALSE:
+ if (next_token(s))
+ return -1;
+ emit_op(s, OP_push_false);
+ break;
+ case TOK_TRUE:
+ if (next_token(s))
+ return -1;
+ emit_op(s, OP_push_true);
+ break;
+ case TOK_IDENT:
+ {
+ JSAtom name;
+ if (s->token.u.ident.is_reserved) {
+ return js_parse_error_reserved_identifier(s);
+ }
+ if (token_is_pseudo_keyword(s, JS_ATOM_async) &&
+ peek_token(s, TRUE) != '\n') {
+ const uint8_t *source_ptr;
+ int source_line_num;
+
+ source_ptr = s->token.ptr;
+ source_line_num = s->token.line_num;
+ if (next_token(s))
+ return -1;
+ if (s->token.val == TOK_FUNCTION) {
+ if (js_parse_function_decl(s, JS_PARSE_FUNC_EXPR,
+ JS_FUNC_ASYNC, JS_ATOM_NULL,
+ source_ptr, source_line_num))
+ return -1;
+ } else {
+ name = JS_DupAtom(s->ctx, JS_ATOM_async);
+ goto do_get_var;
+ }
+ } else {
+ if (s->token.u.ident.atom == JS_ATOM_arguments &&
+ !s->cur_func->arguments_allowed) {
+ js_parse_error(s, "'arguments' identifier is not allowed in class field initializer");
+ return -1;
+ }
+ name = JS_DupAtom(s->ctx, s->token.u.ident.atom);
+ if (next_token(s)) { /* update line number before emitting code */
+ JS_FreeAtom(s->ctx, name);
+ return -1;
+ }
+ do_get_var:
+ emit_op(s, OP_scope_get_var);
+ emit_u32(s, name);
+ emit_u16(s, s->cur_func->scope_level);
+ }
+ }
+ break;
+ case '{':
+ case '[':
+ {
+ int skip_bits;
+ if (js_parse_skip_parens_token(s, &skip_bits, FALSE) == '=') {
+ if (js_parse_destructuring_element(s, 0, 0, FALSE, skip_bits & SKIP_HAS_ELLIPSIS, TRUE) < 0)
+ return -1;
+ } else {
+ if (s->token.val == '{') {
+ if (js_parse_object_literal(s))
+ return -1;
+ } else {
+ if (js_parse_array_literal(s))
+ return -1;
+ }
+ }
+ }
+ break;
+ case TOK_NEW:
+ if (next_token(s))
+ return -1;
+ if (s->token.val == '.') {
+ if (next_token(s))
+ return -1;
+ if (!token_is_pseudo_keyword(s, JS_ATOM_target))
+ return js_parse_error(s, "expecting target");
+ if (!s->cur_func->new_target_allowed)
+ return js_parse_error(s, "new.target only allowed within functions");
+ if (next_token(s))
+ return -1;
+ emit_op(s, OP_scope_get_var);
+ emit_atom(s, JS_ATOM_new_target);
+ emit_u16(s, 0);
+ } else {
+ if (js_parse_postfix_expr(s, 0))
+ return -1;
+ accept_lparen = TRUE;
+ if (s->token.val != '(') {
+ /* new operator on an object */
+ emit_op(s, OP_dup);
+ emit_op(s, OP_call_constructor);
+ emit_u16(s, 0);
+ } else {
+ call_type = FUNC_CALL_NEW;
+ }
+ }
+ break;
+ case TOK_SUPER:
+ if (next_token(s))
+ return -1;
+ if (s->token.val == '(') {
+ if (!s->cur_func->super_call_allowed)
+ return js_parse_error(s, "super() is only valid in a derived class constructor");
+ call_type = FUNC_CALL_SUPER_CTOR;
+ } else if (s->token.val == '.' || s->token.val == '[') {
+ if (!s->cur_func->super_allowed)
+ return js_parse_error(s, "'super' is only valid in a method");
+ emit_op(s, OP_scope_get_var);
+ emit_atom(s, JS_ATOM_this);
+ emit_u16(s, 0);
+ emit_op(s, OP_scope_get_var);
+ emit_atom(s, JS_ATOM_home_object);
+ emit_u16(s, 0);
+ emit_op(s, OP_get_super);
+ } else {
+ return js_parse_error(s, "invalid use of 'super'");
+ }
+ break;
+ case TOK_IMPORT:
+ if (next_token(s))
+ return -1;
+ if (s->token.val == '.') {
+ if (next_token(s))
+ return -1;
+ if (!token_is_pseudo_keyword(s, JS_ATOM_meta))
+ return js_parse_error(s, "meta expected");
+ if (!s->is_module)
+ return js_parse_error(s, "import.meta only valid in module code");
+ if (next_token(s))
+ return -1;
+ emit_op(s, OP_special_object);
+ emit_u8(s, OP_SPECIAL_OBJECT_IMPORT_META);
+ } else {
+ if (js_parse_expect(s, '('))
+ return -1;
+ if (!accept_lparen)
+ return js_parse_error(s, "invalid use of 'import()'");
+ if (js_parse_assign_expr(s))
+ return -1;
+ if (js_parse_expect(s, ')'))
+ return -1;
+ emit_op(s, OP_import);
+ }
+ break;
+ default:
+ return js_parse_error(s, "unexpected token in expression: '%.*s'",
+ (int)(s->buf_ptr - s->token.ptr), s->token.ptr);
+ }
+
+ optional_chaining_label = -1;
+ for(;;) {
+ JSFunctionDef *fd = s->cur_func;
+ BOOL has_optional_chain = FALSE;
+
+ if (s->token.val == TOK_QUESTION_MARK_DOT) {
+ /* optional chaining */
+ if (next_token(s))
+ return -1;
+ has_optional_chain = TRUE;
+ if (s->token.val == '(' && accept_lparen) {
+ goto parse_func_call;
+ } else if (s->token.val == '[') {
+ goto parse_array_access;
+ } else {
+ goto parse_property;
+ }
+ } else if (s->token.val == TOK_TEMPLATE &&
+ call_type == FUNC_CALL_NORMAL) {
+ if (optional_chaining_label >= 0) {
+ return js_parse_error(s, "template literal cannot appear in an optional chain");
+ }
+ call_type = FUNC_CALL_TEMPLATE;
+ goto parse_func_call2;
+ } else if (s->token.val == '(' && accept_lparen) {
+ int opcode, arg_count, drop_count;
+
+ /* function call */
+ parse_func_call:
+ if (next_token(s))
+ return -1;
+
+ if (call_type == FUNC_CALL_NORMAL) {
+ parse_func_call2:
+ switch(opcode = get_prev_opcode(fd)) {
+ case OP_get_field:
+ /* keep the object on the stack */
+ fd->byte_code.buf[fd->last_opcode_pos] = OP_get_field2;
+ drop_count = 2;
+ break;
+ case OP_get_field_opt_chain:
+ {
+ int opt_chain_label, next_label;
+ opt_chain_label = get_u32(fd->byte_code.buf +
+ fd->last_opcode_pos + 1 + 4 + 1);
+ /* keep the object on the stack */
+ fd->byte_code.buf[fd->last_opcode_pos] = OP_get_field2;
+ fd->byte_code.size = fd->last_opcode_pos + 1 + 4;
+ next_label = emit_goto(s, OP_goto, -1);
+ emit_label(s, opt_chain_label);
+ /* need an additional undefined value for the
+ case where the optional field does not
+ exists */
+ emit_op(s, OP_undefined);
+ emit_label(s, next_label);
+ drop_count = 2;
+ opcode = OP_get_field;
+ }
+ break;
+ case OP_scope_get_private_field:
+ /* keep the object on the stack */
+ fd->byte_code.buf[fd->last_opcode_pos] = OP_scope_get_private_field2;
+ drop_count = 2;
+ break;
+ case OP_get_array_el:
+ /* keep the object on the stack */
+ fd->byte_code.buf[fd->last_opcode_pos] = OP_get_array_el2;
+ drop_count = 2;
+ break;
+ case OP_get_array_el_opt_chain:
+ {
+ int opt_chain_label, next_label;
+ opt_chain_label = get_u32(fd->byte_code.buf +
+ fd->last_opcode_pos + 1 + 1);
+ /* keep the object on the stack */
+ fd->byte_code.buf[fd->last_opcode_pos] = OP_get_array_el2;
+ fd->byte_code.size = fd->last_opcode_pos + 1;
+ next_label = emit_goto(s, OP_goto, -1);
+ emit_label(s, opt_chain_label);
+ /* need an additional undefined value for the
+ case where the optional field does not
+ exists */
+ emit_op(s, OP_undefined);
+ emit_label(s, next_label);
+ drop_count = 2;
+ opcode = OP_get_array_el;
+ }
+ break;
+ case OP_scope_get_var:
+ {
+ JSAtom name;
+ int scope;
+ name = get_u32(fd->byte_code.buf + fd->last_opcode_pos + 1);
+ scope = get_u16(fd->byte_code.buf + fd->last_opcode_pos + 5);
+ if (name == JS_ATOM_eval && call_type == FUNC_CALL_NORMAL && !has_optional_chain) {
+ /* direct 'eval' */
+ opcode = OP_eval;
+ } else {
+ /* verify if function name resolves to a simple
+ get_loc/get_arg: a function call inside a `with`
+ statement can resolve to a method call of the
+ `with` context object
+ */
+ /* XXX: always generate the OP_scope_get_ref
+ and remove it in variable resolution
+ pass ? */
+ if (has_with_scope(fd, scope)) {
+ opcode = OP_scope_get_ref;
+ fd->byte_code.buf[fd->last_opcode_pos] = opcode;
+ }
+ }
+ drop_count = 1;
+ }
+ break;
+ case OP_get_super_value:
+ fd->byte_code.buf[fd->last_opcode_pos] = OP_get_array_el;
+ /* on stack: this func_obj */
+ opcode = OP_get_array_el;
+ drop_count = 2;
+ break;
+ default:
+ opcode = OP_invalid;
+ drop_count = 1;
+ break;
+ }
+ if (has_optional_chain) {
+ optional_chain_test(s, &optional_chaining_label,
+ drop_count);
+ }
+ } else {
+ opcode = OP_invalid;
+ }
+
+ if (call_type == FUNC_CALL_TEMPLATE) {
+ if (js_parse_template(s, 1, &arg_count))
+ return -1;
+ goto emit_func_call;
+ } else if (call_type == FUNC_CALL_SUPER_CTOR) {
+ emit_op(s, OP_scope_get_var);
+ emit_atom(s, JS_ATOM_this_active_func);
+ emit_u16(s, 0);
+
+ emit_op(s, OP_get_super);
+
+ emit_op(s, OP_scope_get_var);
+ emit_atom(s, JS_ATOM_new_target);
+ emit_u16(s, 0);
+ } else if (call_type == FUNC_CALL_NEW) {
+ emit_op(s, OP_dup); /* new.target = function */
+ }
+
+ /* parse arguments */
+ arg_count = 0;
+ while (s->token.val != ')') {
+ if (arg_count >= 65535) {
+ return js_parse_error(s, "Too many call arguments");
+ }
+ if (s->token.val == TOK_ELLIPSIS)
+ break;
+ if (js_parse_assign_expr(s))
+ return -1;
+ arg_count++;
+ if (s->token.val == ')')
+ break;
+ /* accept a trailing comma before the ')' */
+ if (js_parse_expect(s, ','))
+ return -1;
+ }
+ if (s->token.val == TOK_ELLIPSIS) {
+ emit_op(s, OP_array_from);
+ emit_u16(s, arg_count);
+ emit_op(s, OP_push_i32);
+ emit_u32(s, arg_count);
+
+ /* on stack: array idx */
+ while (s->token.val != ')') {
+ if (s->token.val == TOK_ELLIPSIS) {
+ if (next_token(s))
+ return -1;
+ if (js_parse_assign_expr(s))
+ return -1;
+#if 1
+ /* XXX: could pass is_last indicator? */
+ emit_op(s, OP_append);
+#else
+ int label_next, label_done;
+ label_next = new_label(s);
+ label_done = new_label(s);
+ /* push enumerate object below array/idx pair */
+ emit_op(s, OP_for_of_start);
+ emit_op(s, OP_rot5l);
+ emit_op(s, OP_rot5l);
+ emit_label(s, label_next);
+ /* on stack: enum_rec array idx */
+ emit_op(s, OP_for_of_next);
+ emit_u8(s, 2);
+ emit_goto(s, OP_if_true, label_done);
+ /* append element */
+ /* enum_rec array idx val -> enum_rec array new_idx */
+ emit_op(s, OP_define_array_el);
+ emit_op(s, OP_inc);
+ emit_goto(s, OP_goto, label_next);
+ emit_label(s, label_done);
+ /* close enumeration, drop enum_rec and idx */
+ emit_op(s, OP_drop); /* drop undef */
+ emit_op(s, OP_nip1); /* drop enum_rec */
+ emit_op(s, OP_nip1);
+ emit_op(s, OP_nip1);
+#endif
+ } else {
+ if (js_parse_assign_expr(s))
+ return -1;
+ /* array idx val */
+ emit_op(s, OP_define_array_el);
+ emit_op(s, OP_inc);
+ }
+ if (s->token.val == ')')
+ break;
+ /* accept a trailing comma before the ')' */
+ if (js_parse_expect(s, ','))
+ return -1;
+ }
+ if (next_token(s))
+ return -1;
+ /* drop the index */
+ emit_op(s, OP_drop);
+
+ /* apply function call */
+ switch(opcode) {
+ case OP_get_field:
+ case OP_scope_get_private_field:
+ case OP_get_array_el:
+ case OP_scope_get_ref:
+ /* obj func array -> func obj array */
+ emit_op(s, OP_perm3);
+ emit_op(s, OP_apply);
+ emit_u16(s, call_type == FUNC_CALL_NEW);
+ break;
+ case OP_eval:
+ emit_op(s, OP_apply_eval);
+ emit_u16(s, fd->scope_level);
+ fd->has_eval_call = TRUE;
+ break;
+ default:
+ if (call_type == FUNC_CALL_SUPER_CTOR) {
+ emit_op(s, OP_apply);
+ emit_u16(s, 1);
+ /* set the 'this' value */
+ emit_op(s, OP_dup);
+ emit_op(s, OP_scope_put_var_init);
+ emit_atom(s, JS_ATOM_this);
+ emit_u16(s, 0);
+
+ emit_class_field_init(s);
+ } else if (call_type == FUNC_CALL_NEW) {
+ /* obj func array -> func obj array */
+ emit_op(s, OP_perm3);
+ emit_op(s, OP_apply);
+ emit_u16(s, 1);
+ } else {
+ /* func array -> func undef array */
+ emit_op(s, OP_undefined);
+ emit_op(s, OP_swap);
+ emit_op(s, OP_apply);
+ emit_u16(s, 0);
+ }
+ break;
+ }
+ } else {
+ if (next_token(s))
+ return -1;
+ emit_func_call:
+ switch(opcode) {
+ case OP_get_field:
+ case OP_scope_get_private_field:
+ case OP_get_array_el:
+ case OP_scope_get_ref:
+ emit_op(s, OP_call_method);
+ emit_u16(s, arg_count);
+ break;
+ case OP_eval:
+ emit_op(s, OP_eval);
+ emit_u16(s, arg_count);
+ emit_u16(s, fd->scope_level);
+ fd->has_eval_call = TRUE;
+ break;
+ default:
+ if (call_type == FUNC_CALL_SUPER_CTOR) {
+ emit_op(s, OP_call_constructor);
+ emit_u16(s, arg_count);
+
+ /* set the 'this' value */
+ emit_op(s, OP_dup);
+ emit_op(s, OP_scope_put_var_init);
+ emit_atom(s, JS_ATOM_this);
+ emit_u16(s, 0);
+
+ emit_class_field_init(s);
+ } else if (call_type == FUNC_CALL_NEW) {
+ emit_op(s, OP_call_constructor);
+ emit_u16(s, arg_count);
+ } else {
+ emit_op(s, OP_call);
+ emit_u16(s, arg_count);
+ }
+ break;
+ }
+ }
+ call_type = FUNC_CALL_NORMAL;
+ } else if (s->token.val == '.') {
+ if (next_token(s))
+ return -1;
+ parse_property:
+ if (s->token.val == TOK_PRIVATE_NAME) {
+ /* private class field */
+ if (get_prev_opcode(fd) == OP_get_super) {
+ return js_parse_error(s, "private class field forbidden after super");
+ }
+ if (has_optional_chain) {
+ optional_chain_test(s, &optional_chaining_label, 1);
+ }
+ emit_op(s, OP_scope_get_private_field);
+ emit_atom(s, s->token.u.ident.atom);
+ emit_u16(s, s->cur_func->scope_level);
+ } else {
+ if (!token_is_ident(s->token.val)) {
+ return js_parse_error(s, "expecting field name");
+ }
+ if (get_prev_opcode(fd) == OP_get_super) {
+ JSValue val;
+ int ret;
+ val = JS_AtomToValue(s->ctx, s->token.u.ident.atom);
+ ret = emit_push_const(s, val, 1);
+ JS_FreeValue(s->ctx, val);
+ if (ret)
+ return -1;
+ emit_op(s, OP_get_super_value);
+ } else {
+ if (has_optional_chain) {
+ optional_chain_test(s, &optional_chaining_label, 1);
+ }
+ emit_op(s, OP_get_field);
+ emit_atom(s, s->token.u.ident.atom);
+ }
+ }
+ if (next_token(s))
+ return -1;
+ } else if (s->token.val == '[') {
+ int prev_op;
+
+ parse_array_access:
+ prev_op = get_prev_opcode(fd);
+ if (has_optional_chain) {
+ optional_chain_test(s, &optional_chaining_label, 1);
+ }
+ if (next_token(s))
+ return -1;
+ if (js_parse_expr(s))
+ return -1;
+ if (js_parse_expect(s, ']'))
+ return -1;
+ if (prev_op == OP_get_super) {
+ emit_op(s, OP_get_super_value);
+ } else {
+ emit_op(s, OP_get_array_el);
+ }
+ } else {
+ break;
+ }
+ }
+ if (optional_chaining_label >= 0) {
+ JSFunctionDef *fd = s->cur_func;
+ int opcode;
+ emit_label_raw(s, optional_chaining_label);
+ /* modify the last opcode so that it is an indicator of an
+ optional chain */
+ opcode = get_prev_opcode(fd);
+ if (opcode == OP_get_field || opcode == OP_get_array_el) {
+ if (opcode == OP_get_field)
+ opcode = OP_get_field_opt_chain;
+ else
+ opcode = OP_get_array_el_opt_chain;
+ fd->byte_code.buf[fd->last_opcode_pos] = opcode;
+ } else {
+ fd->last_opcode_pos = -1;
+ }
+ }
+ return 0;
+}
+
+static __exception int js_parse_delete(JSParseState *s)
+{
+ JSFunctionDef *fd = s->cur_func;
+ JSAtom name;
+ int opcode;
+
+ if (next_token(s))
+ return -1;
+ if (js_parse_unary(s, PF_POW_FORBIDDEN))
+ return -1;
+ switch(opcode = get_prev_opcode(fd)) {
+ case OP_get_field:
+ case OP_get_field_opt_chain:
+ {
+ JSValue val;
+ int ret, opt_chain_label, next_label;
+ if (opcode == OP_get_field_opt_chain) {
+ opt_chain_label = get_u32(fd->byte_code.buf +
+ fd->last_opcode_pos + 1 + 4 + 1);
+ } else {
+ opt_chain_label = -1;
+ }
+ name = get_u32(fd->byte_code.buf + fd->last_opcode_pos + 1);
+ fd->byte_code.size = fd->last_opcode_pos;
+ val = JS_AtomToValue(s->ctx, name);
+ ret = emit_push_const(s, val, 1);
+ JS_FreeValue(s->ctx, val);
+ JS_FreeAtom(s->ctx, name);
+ if (ret)
+ return ret;
+ emit_op(s, OP_delete);
+ if (opt_chain_label >= 0) {
+ next_label = emit_goto(s, OP_goto, -1);
+ emit_label(s, opt_chain_label);
+ /* if the optional chain is not taken, return 'true' */
+ emit_op(s, OP_drop);
+ emit_op(s, OP_push_true);
+ emit_label(s, next_label);
+ }
+ fd->last_opcode_pos = -1;
+ }
+ break;
+ case OP_get_array_el:
+ fd->byte_code.size = fd->last_opcode_pos;
+ fd->last_opcode_pos = -1;
+ emit_op(s, OP_delete);
+ break;
+ case OP_get_array_el_opt_chain:
+ {
+ int opt_chain_label, next_label;
+ opt_chain_label = get_u32(fd->byte_code.buf +
+ fd->last_opcode_pos + 1 + 1);
+ fd->byte_code.size = fd->last_opcode_pos;
+ emit_op(s, OP_delete);
+ next_label = emit_goto(s, OP_goto, -1);
+ emit_label(s, opt_chain_label);
+ /* if the optional chain is not taken, return 'true' */
+ emit_op(s, OP_drop);
+ emit_op(s, OP_push_true);
+ emit_label(s, next_label);
+ fd->last_opcode_pos = -1;
+ }
+ break;
+ case OP_scope_get_var:
+ /* 'delete this': this is not a reference */
+ name = get_u32(fd->byte_code.buf + fd->last_opcode_pos + 1);
+ if (name == JS_ATOM_this || name == JS_ATOM_new_target)
+ goto ret_true;
+ if (fd->js_mode & JS_MODE_STRICT) {
+ return js_parse_error(s, "cannot delete a direct reference in strict mode");
+ } else {
+ fd->byte_code.buf[fd->last_opcode_pos] = OP_scope_delete_var;
+ }
+ break;
+ case OP_scope_get_private_field:
+ return js_parse_error(s, "cannot delete a private class field");
+ case OP_get_super_value:
+ fd->byte_code.size = fd->last_opcode_pos;
+ fd->last_opcode_pos = -1;
+ emit_op(s, OP_throw_error);
+ emit_atom(s, JS_ATOM_NULL);
+ emit_u8(s, JS_THROW_ERROR_DELETE_SUPER);
+ break;
+ default:
+ ret_true:
+ emit_op(s, OP_drop);
+ emit_op(s, OP_push_true);
+ break;
+ }
+ return 0;
+}
+
+/* allowed parse_flags: PF_POW_ALLOWED, PF_POW_FORBIDDEN */
+static __exception int js_parse_unary(JSParseState *s, int parse_flags)
+{
+ int op;
+
+ switch(s->token.val) {
+ case '+':
+ case '-':
+ case '!':
+ case '~':
+ case TOK_VOID:
+ op = s->token.val;
+ if (next_token(s))
+ return -1;
+ if (js_parse_unary(s, PF_POW_FORBIDDEN))
+ return -1;
+ switch(op) {
+ case '-':
+ emit_op(s, OP_neg);
+ break;
+ case '+':
+ emit_op(s, OP_plus);
+ break;
+ case '!':
+ emit_op(s, OP_lnot);
+ break;
+ case '~':
+ emit_op(s, OP_not);
+ break;
+ case TOK_VOID:
+ emit_op(s, OP_drop);
+ emit_op(s, OP_undefined);
+ break;
+ default:
+ abort();
+ }
+ parse_flags = 0;
+ break;
+ case TOK_DEC:
+ case TOK_INC:
+ {
+ int opcode, op, scope, label;
+ JSAtom name;
+ op = s->token.val;
+ if (next_token(s))
+ return -1;
+ if (js_parse_unary(s, 0))
+ return -1;
+ if (get_lvalue(s, &opcode, &scope, &name, &label, NULL, TRUE, op))
+ return -1;
+ emit_op(s, OP_dec + op - TOK_DEC);
+ put_lvalue(s, opcode, scope, name, label, PUT_LVALUE_KEEP_TOP,
+ FALSE);
+ }
+ break;
+ case TOK_TYPEOF:
+ {
+ JSFunctionDef *fd;
+ if (next_token(s))
+ return -1;
+ if (js_parse_unary(s, PF_POW_FORBIDDEN))
+ return -1;
+ /* reference access should not return an exception, so we
+ patch the get_var */
+ fd = s->cur_func;
+ if (get_prev_opcode(fd) == OP_scope_get_var) {
+ fd->byte_code.buf[fd->last_opcode_pos] = OP_scope_get_var_undef;
+ }
+ emit_op(s, OP_typeof);
+ parse_flags = 0;
+ }
+ break;
+ case TOK_DELETE:
+ if (js_parse_delete(s))
+ return -1;
+ parse_flags = 0;
+ break;
+ case TOK_AWAIT:
+ if (!(s->cur_func->func_kind & JS_FUNC_ASYNC))
+ return js_parse_error(s, "unexpected 'await' keyword");
+ if (!s->cur_func->in_function_body)
+ return js_parse_error(s, "await in default expression");
+ if (next_token(s))
+ return -1;
+ if (js_parse_unary(s, PF_POW_FORBIDDEN))
+ return -1;
+ s->cur_func->has_await = TRUE;
+ emit_op(s, OP_await);
+ parse_flags = 0;
+ break;
+ default:
+ if (js_parse_postfix_expr(s, PF_POSTFIX_CALL))
+ return -1;
+ if (!s->got_lf &&
+ (s->token.val == TOK_DEC || s->token.val == TOK_INC)) {
+ int opcode, op, scope, label;
+ JSAtom name;
+ op = s->token.val;
+ if (get_lvalue(s, &opcode, &scope, &name, &label, NULL, TRUE, op))
+ return -1;
+ emit_op(s, OP_post_dec + op - TOK_DEC);
+ put_lvalue(s, opcode, scope, name, label, PUT_LVALUE_KEEP_SECOND,
+ FALSE);
+ if (next_token(s))
+ return -1;
+ }
+ break;
+ }
+ if (parse_flags & (PF_POW_ALLOWED | PF_POW_FORBIDDEN)) {
+#ifdef CONFIG_BIGNUM
+ if (s->token.val == TOK_POW || s->token.val == TOK_MATH_POW) {
+ /* Extended exponentiation syntax rules: we extend the ES7
+ grammar in order to have more intuitive semantics:
+ -2**2 evaluates to -4. */
+ if (!(s->cur_func->js_mode & JS_MODE_MATH)) {
+ if (parse_flags & PF_POW_FORBIDDEN) {
+ JS_ThrowSyntaxError(s->ctx, "unparenthesized unary expression can't appear on the left-hand side of '**'");
+ return -1;
+ }
+ }
+ if (next_token(s))
+ return -1;
+ if (js_parse_unary(s, PF_POW_ALLOWED))
+ return -1;
+ emit_op(s, OP_pow);
+ }
+#else
+ if (s->token.val == TOK_POW) {
+ /* Strict ES7 exponentiation syntax rules: To solve
+ conficting semantics between different implementations
+ regarding the precedence of prefix operators and the
+ postifx exponential, ES7 specifies that -2**2 is a
+ syntax error. */
+ if (parse_flags & PF_POW_FORBIDDEN) {
+ JS_ThrowSyntaxError(s->ctx, "unparenthesized unary expression can't appear on the left-hand side of '**'");
+ return -1;
+ }
+ if (next_token(s))
+ return -1;
+ if (js_parse_unary(s, PF_POW_ALLOWED))
+ return -1;
+ emit_op(s, OP_pow);
+ }
+#endif
+ }
+ return 0;
+}
+
+/* allowed parse_flags: PF_IN_ACCEPTED */
+static __exception int js_parse_expr_binary(JSParseState *s, int level,
+ int parse_flags)
+{
+ int op, opcode;
+
+ if (level == 0) {
+ return js_parse_unary(s, PF_POW_ALLOWED);
+ } else if (s->token.val == TOK_PRIVATE_NAME &&
+ (parse_flags & PF_IN_ACCEPTED) && level == 4 &&
+ peek_token(s, FALSE) == TOK_IN) {
+ JSAtom atom;
+
+ atom = JS_DupAtom(s->ctx, s->token.u.ident.atom);
+ if (next_token(s))
+ goto fail_private_in;
+ if (s->token.val != TOK_IN)
+ goto fail_private_in;
+ if (next_token(s))
+ goto fail_private_in;
+ if (js_parse_expr_binary(s, level - 1, parse_flags)) {
+ fail_private_in:
+ JS_FreeAtom(s->ctx, atom);
+ return -1;
+ }
+ emit_op(s, OP_scope_in_private_field);
+ emit_atom(s, atom);
+ emit_u16(s, s->cur_func->scope_level);
+ JS_FreeAtom(s->ctx, atom);
+ return 0;
+ } else {
+ if (js_parse_expr_binary(s, level - 1, parse_flags))
+ return -1;
+ }
+ for(;;) {
+ op = s->token.val;
+ switch(level) {
+ case 1:
+ switch(op) {
+ case '*':
+ opcode = OP_mul;
+ break;
+ case '/':
+ opcode = OP_div;
+ break;
+ case '%':
+#ifdef CONFIG_BIGNUM
+ if (s->cur_func->js_mode & JS_MODE_MATH)
+ opcode = OP_math_mod;
+ else
+#endif
+ opcode = OP_mod;
+ break;
+ default:
+ return 0;
+ }
+ break;
+ case 2:
+ switch(op) {
+ case '+':
+ opcode = OP_add;
+ break;
+ case '-':
+ opcode = OP_sub;
+ break;
+ default:
+ return 0;
+ }
+ break;
+ case 3:
+ switch(op) {
+ case TOK_SHL:
+ opcode = OP_shl;
+ break;
+ case TOK_SAR:
+ opcode = OP_sar;
+ break;
+ case TOK_SHR:
+ opcode = OP_shr;
+ break;
+ default:
+ return 0;
+ }
+ break;
+ case 4:
+ switch(op) {
+ case '<':
+ opcode = OP_lt;
+ break;
+ case '>':
+ opcode = OP_gt;
+ break;
+ case TOK_LTE:
+ opcode = OP_lte;
+ break;
+ case TOK_GTE:
+ opcode = OP_gte;
+ break;
+ case TOK_INSTANCEOF:
+ opcode = OP_instanceof;
+ break;
+ case TOK_IN:
+ if (parse_flags & PF_IN_ACCEPTED) {
+ opcode = OP_in;
+ } else {
+ return 0;
+ }
+ break;
+ default:
+ return 0;
+ }
+ break;
+ case 5:
+ switch(op) {
+ case TOK_EQ:
+ opcode = OP_eq;
+ break;
+ case TOK_NEQ:
+ opcode = OP_neq;
+ break;
+ case TOK_STRICT_EQ:
+ opcode = OP_strict_eq;
+ break;
+ case TOK_STRICT_NEQ:
+ opcode = OP_strict_neq;
+ break;
+ default:
+ return 0;
+ }
+ break;
+ case 6:
+ switch(op) {
+ case '&':
+ opcode = OP_and;
+ break;
+ default:
+ return 0;
+ }
+ break;
+ case 7:
+ switch(op) {
+ case '^':
+ opcode = OP_xor;
+ break;
+ default:
+ return 0;
+ }
+ break;
+ case 8:
+ switch(op) {
+ case '|':
+ opcode = OP_or;
+ break;
+ default:
+ return 0;
+ }
+ break;
+ default:
+ abort();
+ }
+ if (next_token(s))
+ return -1;
+ if (js_parse_expr_binary(s, level - 1, parse_flags))
+ return -1;
+ emit_op(s, opcode);
+ }
+ return 0;
+}
+
+/* allowed parse_flags: PF_IN_ACCEPTED */
+static __exception int js_parse_logical_and_or(JSParseState *s, int op,
+ int parse_flags)
+{
+ int label1;
+
+ if (op == TOK_LAND) {
+ if (js_parse_expr_binary(s, 8, parse_flags))
+ return -1;
+ } else {
+ if (js_parse_logical_and_or(s, TOK_LAND, parse_flags))
+ return -1;
+ }
+ if (s->token.val == op) {
+ label1 = new_label(s);
+
+ for(;;) {
+ if (next_token(s))
+ return -1;
+ emit_op(s, OP_dup);
+ emit_goto(s, op == TOK_LAND ? OP_if_false : OP_if_true, label1);
+ emit_op(s, OP_drop);
+
+ if (op == TOK_LAND) {
+ if (js_parse_expr_binary(s, 8, parse_flags))
+ return -1;
+ } else {
+ if (js_parse_logical_and_or(s, TOK_LAND,
+ parse_flags))
+ return -1;
+ }
+ if (s->token.val != op) {
+ if (s->token.val == TOK_DOUBLE_QUESTION_MARK)
+ return js_parse_error(s, "cannot mix ?? with && or ||");
+ break;
+ }
+ }
+
+ emit_label(s, label1);
+ }
+ return 0;
+}
+
+static __exception int js_parse_coalesce_expr(JSParseState *s, int parse_flags)
+{
+ int label1;
+
+ if (js_parse_logical_and_or(s, TOK_LOR, parse_flags))
+ return -1;
+ if (s->token.val == TOK_DOUBLE_QUESTION_MARK) {
+ label1 = new_label(s);
+ for(;;) {
+ if (next_token(s))
+ return -1;
+
+ emit_op(s, OP_dup);
+ emit_op(s, OP_is_undefined_or_null);
+ emit_goto(s, OP_if_false, label1);
+ emit_op(s, OP_drop);
+
+ if (js_parse_expr_binary(s, 8, parse_flags))
+ return -1;
+ if (s->token.val != TOK_DOUBLE_QUESTION_MARK)
+ break;
+ }
+ emit_label(s, label1);
+ }
+ return 0;
+}
+
+/* allowed parse_flags: PF_IN_ACCEPTED */
+static __exception int js_parse_cond_expr(JSParseState *s, int parse_flags)
+{
+ int label1, label2;
+
+ if (js_parse_coalesce_expr(s, parse_flags))
+ return -1;
+ if (s->token.val == '?') {
+ if (next_token(s))
+ return -1;
+ label1 = emit_goto(s, OP_if_false, -1);
+
+ if (js_parse_assign_expr(s))
+ return -1;
+ if (js_parse_expect(s, ':'))
+ return -1;
+
+ label2 = emit_goto(s, OP_goto, -1);
+
+ emit_label(s, label1);
+
+ if (js_parse_assign_expr2(s, parse_flags & PF_IN_ACCEPTED))
+ return -1;
+
+ emit_label(s, label2);
+ }
+ return 0;
+}
+
+static void emit_return(JSParseState *s, BOOL hasval);
+
+/* allowed parse_flags: PF_IN_ACCEPTED */
+static __exception int js_parse_assign_expr2(JSParseState *s, int parse_flags)
+{
+ int opcode, op, scope;
+ JSAtom name0 = JS_ATOM_NULL;
+ JSAtom name;
+
+ if (s->token.val == TOK_YIELD) {
+ BOOL is_star = FALSE, is_async;
+
+ if (!(s->cur_func->func_kind & JS_FUNC_GENERATOR))
+ return js_parse_error(s, "unexpected 'yield' keyword");
+ if (!s->cur_func->in_function_body)
+ return js_parse_error(s, "yield in default expression");
+ if (next_token(s))
+ return -1;
+ /* XXX: is there a better method to detect 'yield' without
+ parameters ? */
+ if (s->token.val != ';' && s->token.val != ')' &&
+ s->token.val != ']' && s->token.val != '}' &&
+ s->token.val != ',' && s->token.val != ':' && !s->got_lf) {
+ if (s->token.val == '*') {
+ is_star = TRUE;
+ if (next_token(s))
+ return -1;
+ }
+ if (js_parse_assign_expr2(s, parse_flags))
+ return -1;
+ } else {
+ emit_op(s, OP_undefined);
+ }
+ is_async = (s->cur_func->func_kind == JS_FUNC_ASYNC_GENERATOR);
+
+ if (is_star) {
+ int label_loop, label_return, label_next;
+ int label_return1, label_yield, label_throw, label_throw1;
+ int label_throw2;
+
+ label_loop = new_label(s);
+ label_yield = new_label(s);
+
+ emit_op(s, is_async ? OP_for_await_of_start : OP_for_of_start);
+
+ /* remove the catch offset (XXX: could avoid pushing back
+ undefined) */
+ emit_op(s, OP_drop);
+ emit_op(s, OP_undefined);
+
+ emit_op(s, OP_undefined); /* initial value */
+
+ emit_label(s, label_loop);
+ emit_op(s, OP_iterator_next);
+ if (is_async)
+ emit_op(s, OP_await);
+ emit_op(s, OP_iterator_check_object);
+ emit_op(s, OP_get_field2);
+ emit_atom(s, JS_ATOM_done);
+ label_next = emit_goto(s, OP_if_true, -1); /* end of loop */
+ emit_label(s, label_yield);
+ if (is_async) {
+ /* OP_async_yield_star takes the value as parameter */
+ emit_op(s, OP_get_field);
+ emit_atom(s, JS_ATOM_value);
+ emit_op(s, OP_async_yield_star);
+ } else {
+ /* OP_yield_star takes (value, done) as parameter */
+ emit_op(s, OP_yield_star);
+ }
+ emit_op(s, OP_dup);
+ label_return = emit_goto(s, OP_if_true, -1);
+ emit_op(s, OP_drop);
+ emit_goto(s, OP_goto, label_loop);
+
+ emit_label(s, label_return);
+ emit_op(s, OP_push_i32);
+ emit_u32(s, 2);
+ emit_op(s, OP_strict_eq);
+ label_throw = emit_goto(s, OP_if_true, -1);
+
+ /* return handling */
+ if (is_async)
+ emit_op(s, OP_await);
+ emit_op(s, OP_iterator_call);
+ emit_u8(s, 0);
+ label_return1 = emit_goto(s, OP_if_true, -1);
+ if (is_async)
+ emit_op(s, OP_await);
+ emit_op(s, OP_iterator_check_object);
+ emit_op(s, OP_get_field2);
+ emit_atom(s, JS_ATOM_done);
+ emit_goto(s, OP_if_false, label_yield);
+
+ emit_op(s, OP_get_field);
+ emit_atom(s, JS_ATOM_value);
+
+ emit_label(s, label_return1);
+ emit_op(s, OP_nip);
+ emit_op(s, OP_nip);
+ emit_op(s, OP_nip);
+ emit_return(s, TRUE);
+
+ /* throw handling */
+ emit_label(s, label_throw);
+ emit_op(s, OP_iterator_call);
+ emit_u8(s, 1);
+ label_throw1 = emit_goto(s, OP_if_true, -1);
+ if (is_async)
+ emit_op(s, OP_await);
+ emit_op(s, OP_iterator_check_object);
+ emit_op(s, OP_get_field2);
+ emit_atom(s, JS_ATOM_done);
+ emit_goto(s, OP_if_false, label_yield);
+ emit_goto(s, OP_goto, label_next);
+ /* close the iterator and throw a type error exception */
+ emit_label(s, label_throw1);
+ emit_op(s, OP_iterator_call);
+ emit_u8(s, 2);
+ label_throw2 = emit_goto(s, OP_if_true, -1);
+ if (is_async)
+ emit_op(s, OP_await);
+ emit_label(s, label_throw2);
+
+ emit_op(s, OP_throw_error);
+ emit_atom(s, JS_ATOM_NULL);
+ emit_u8(s, JS_THROW_ERROR_ITERATOR_THROW);
+
+ emit_label(s, label_next);
+ emit_op(s, OP_get_field);
+ emit_atom(s, JS_ATOM_value);
+ emit_op(s, OP_nip); /* keep the value associated with
+ done = true */
+ emit_op(s, OP_nip);
+ emit_op(s, OP_nip);
+ } else {
+ int label_next;
+
+ if (is_async)
+ emit_op(s, OP_await);
+ emit_op(s, OP_yield);
+ label_next = emit_goto(s, OP_if_false, -1);
+ emit_return(s, TRUE);
+ emit_label(s, label_next);
+ }
+ return 0;
+ } else if (s->token.val == '(' &&
+ js_parse_skip_parens_token(s, NULL, TRUE) == TOK_ARROW) {
+ return js_parse_function_decl(s, JS_PARSE_FUNC_ARROW,
+ JS_FUNC_NORMAL, JS_ATOM_NULL,
+ s->token.ptr, s->token.line_num);
+ } else if (token_is_pseudo_keyword(s, JS_ATOM_async)) {
+ const uint8_t *source_ptr;
+ int source_line_num, tok;
+ JSParsePos pos;
+
+ /* fast test */
+ tok = peek_token(s, TRUE);
+ if (tok == TOK_FUNCTION || tok == '\n')
+ goto next;
+
+ source_ptr = s->token.ptr;
+ source_line_num = s->token.line_num;
+ js_parse_get_pos(s, &pos);
+ if (next_token(s))
+ return -1;
+ if ((s->token.val == '(' &&
+ js_parse_skip_parens_token(s, NULL, TRUE) == TOK_ARROW) ||
+ (s->token.val == TOK_IDENT && !s->token.u.ident.is_reserved &&
+ peek_token(s, TRUE) == TOK_ARROW)) {
+ return js_parse_function_decl(s, JS_PARSE_FUNC_ARROW,
+ JS_FUNC_ASYNC, JS_ATOM_NULL,
+ source_ptr, source_line_num);
+ } else {
+ /* undo the token parsing */
+ if (js_parse_seek_token(s, &pos))
+ return -1;
+ }
+ } else if (s->token.val == TOK_IDENT &&
+ peek_token(s, TRUE) == TOK_ARROW) {
+ return js_parse_function_decl(s, JS_PARSE_FUNC_ARROW,
+ JS_FUNC_NORMAL, JS_ATOM_NULL,
+ s->token.ptr, s->token.line_num);
+ }
+ next:
+ if (s->token.val == TOK_IDENT) {
+ /* name0 is used to check for OP_set_name pattern, not duplicated */
+ name0 = s->token.u.ident.atom;
+ }
+ if (js_parse_cond_expr(s, parse_flags))
+ return -1;
+
+ op = s->token.val;
+ if (op == '=' || (op >= TOK_MUL_ASSIGN && op <= TOK_POW_ASSIGN)) {
+ int label;
+ if (next_token(s))
+ return -1;
+ if (get_lvalue(s, &opcode, &scope, &name, &label, NULL, (op != '='), op) < 0)
+ return -1;
+
+ if (js_parse_assign_expr2(s, parse_flags)) {
+ JS_FreeAtom(s->ctx, name);
+ return -1;
+ }
+
+ if (op == '=') {
+ if (opcode == OP_get_ref_value && name == name0) {
+ set_object_name(s, name);
+ }
+ } else {
+ static const uint8_t assign_opcodes[] = {
+ OP_mul, OP_div, OP_mod, OP_add, OP_sub,
+ OP_shl, OP_sar, OP_shr, OP_and, OP_xor, OP_or,
+#ifdef CONFIG_BIGNUM
+ OP_pow,
+#endif
+ OP_pow,
+ };
+ op = assign_opcodes[op - TOK_MUL_ASSIGN];
+#ifdef CONFIG_BIGNUM
+ if (s->cur_func->js_mode & JS_MODE_MATH) {
+ if (op == OP_mod)
+ op = OP_math_mod;
+ }
+#endif
+ emit_op(s, op);
+ }
+ put_lvalue(s, opcode, scope, name, label, PUT_LVALUE_KEEP_TOP, FALSE);
+ } else if (op >= TOK_LAND_ASSIGN && op <= TOK_DOUBLE_QUESTION_MARK_ASSIGN) {
+ int label, label1, depth_lvalue, label2;
+
+ if (next_token(s))
+ return -1;
+ if (get_lvalue(s, &opcode, &scope, &name, &label,
+ &depth_lvalue, TRUE, op) < 0)
+ return -1;
+
+ emit_op(s, OP_dup);
+ if (op == TOK_DOUBLE_QUESTION_MARK_ASSIGN)
+ emit_op(s, OP_is_undefined_or_null);
+ label1 = emit_goto(s, op == TOK_LOR_ASSIGN ? OP_if_true : OP_if_false,
+ -1);
+ emit_op(s, OP_drop);
+
+ if (js_parse_assign_expr2(s, parse_flags)) {
+ JS_FreeAtom(s->ctx, name);
+ return -1;
+ }
+
+ if (opcode == OP_get_ref_value && name == name0) {
+ set_object_name(s, name);
+ }
+
+ switch(depth_lvalue) {
+ case 1:
+ emit_op(s, OP_insert2);
+ break;
+ case 2:
+ emit_op(s, OP_insert3);
+ break;
+ case 3:
+ emit_op(s, OP_insert4);
+ break;
+ default:
+ abort();
+ }
+
+ /* XXX: we disable the OP_put_ref_value optimization by not
+ using put_lvalue() otherwise depth_lvalue is not correct */
+ put_lvalue(s, opcode, scope, name, label, PUT_LVALUE_NOKEEP_DEPTH,
+ FALSE);
+ label2 = emit_goto(s, OP_goto, -1);
+
+ emit_label(s, label1);
+
+ /* remove the lvalue stack entries */
+ while (depth_lvalue != 0) {
+ emit_op(s, OP_nip);
+ depth_lvalue--;
+ }
+
+ emit_label(s, label2);
+ }
+ return 0;
+}
+
+static __exception int js_parse_assign_expr(JSParseState *s)
+{
+ return js_parse_assign_expr2(s, PF_IN_ACCEPTED);
+}
+
+/* allowed parse_flags: PF_IN_ACCEPTED */
+static __exception int js_parse_expr2(JSParseState *s, int parse_flags)
+{
+ BOOL comma = FALSE;
+ for(;;) {
+ if (js_parse_assign_expr2(s, parse_flags))
+ return -1;
+ if (comma) {
+ /* prevent get_lvalue from using the last expression
+ as an lvalue. This also prevents the conversion of
+ of get_var to get_ref for method lookup in function
+ call inside `with` statement.
+ */
+ s->cur_func->last_opcode_pos = -1;
+ }
+ if (s->token.val != ',')
+ break;
+ comma = TRUE;
+ if (next_token(s))
+ return -1;
+ emit_op(s, OP_drop);
+ }
+ return 0;
+}
+
+static __exception int js_parse_expr(JSParseState *s)
+{
+ return js_parse_expr2(s, PF_IN_ACCEPTED);
+}
+
+static void push_break_entry(JSFunctionDef *fd, BlockEnv *be,
+ JSAtom label_name,
+ int label_break, int label_cont,
+ int drop_count)
+{
+ be->prev = fd->top_break;
+ fd->top_break = be;
+ be->label_name = label_name;
+ be->label_break = label_break;
+ be->label_cont = label_cont;
+ be->drop_count = drop_count;
+ be->label_finally = -1;
+ be->scope_level = fd->scope_level;
+ be->has_iterator = FALSE;
+}
+
+static void pop_break_entry(JSFunctionDef *fd)
+{
+ BlockEnv *be;
+ be = fd->top_break;
+ fd->top_break = be->prev;
+}
+
+static __exception int emit_break(JSParseState *s, JSAtom name, int is_cont)
+{
+ BlockEnv *top;
+ int i, scope_level;
+
+ scope_level = s->cur_func->scope_level;
+ top = s->cur_func->top_break;
+ while (top != NULL) {
+ close_scopes(s, scope_level, top->scope_level);
+ scope_level = top->scope_level;
+ if (is_cont &&
+ top->label_cont != -1 &&
+ (name == JS_ATOM_NULL || top->label_name == name)) {
+ /* continue stays inside the same block */
+ emit_goto(s, OP_goto, top->label_cont);
+ return 0;
+ }
+ if (!is_cont &&
+ top->label_break != -1 &&
+ (name == JS_ATOM_NULL || top->label_name == name)) {
+ emit_goto(s, OP_goto, top->label_break);
+ return 0;
+ }
+ i = 0;
+ if (top->has_iterator) {
+ emit_op(s, OP_iterator_close);
+ i += 3;
+ }
+ for(; i < top->drop_count; i++)
+ emit_op(s, OP_drop);
+ if (top->label_finally != -1) {
+ /* must push dummy value to keep same stack depth */
+ emit_op(s, OP_undefined);
+ emit_goto(s, OP_gosub, top->label_finally);
+ emit_op(s, OP_drop);
+ }
+ top = top->prev;
+ }
+ if (name == JS_ATOM_NULL) {
+ if (is_cont)
+ return js_parse_error(s, "continue must be inside loop");
+ else
+ return js_parse_error(s, "break must be inside loop or switch");
+ } else {
+ return js_parse_error(s, "break/continue label not found");
+ }
+}
+
+/* execute the finally blocks before return */
+static void emit_return(JSParseState *s, BOOL hasval)
+{
+ BlockEnv *top;
+
+ if (s->cur_func->func_kind != JS_FUNC_NORMAL) {
+ if (!hasval) {
+ /* no value: direct return in case of async generator */
+ emit_op(s, OP_undefined);
+ hasval = TRUE;
+ } else if (s->cur_func->func_kind == JS_FUNC_ASYNC_GENERATOR) {
+ /* the await must be done before handling the "finally" in
+ case it raises an exception */
+ emit_op(s, OP_await);
+ }
+ }
+
+ top = s->cur_func->top_break;
+ while (top != NULL) {
+ if (top->has_iterator || top->label_finally != -1) {
+ if (!hasval) {
+ emit_op(s, OP_undefined);
+ hasval = TRUE;
+ }
+ /* Remove the stack elements up to and including the catch
+ offset. When 'yield' is used in an expression we have
+ no easy way to count them, so we use this specific
+ instruction instead. */
+ emit_op(s, OP_nip_catch);
+ /* stack: iter_obj next ret_val */
+ if (top->has_iterator) {
+ if (s->cur_func->func_kind == JS_FUNC_ASYNC_GENERATOR) {
+ int label_next, label_next2;
+ emit_op(s, OP_nip); /* next */
+ emit_op(s, OP_swap);
+ emit_op(s, OP_get_field2);
+ emit_atom(s, JS_ATOM_return);
+ /* stack: iter_obj return_func */
+ emit_op(s, OP_dup);
+ emit_op(s, OP_is_undefined_or_null);
+ label_next = emit_goto(s, OP_if_true, -1);
+ emit_op(s, OP_call_method);
+ emit_u16(s, 0);
+ emit_op(s, OP_iterator_check_object);
+ emit_op(s, OP_await);
+ label_next2 = emit_goto(s, OP_goto, -1);
+ emit_label(s, label_next);
+ emit_op(s, OP_drop);
+ emit_label(s, label_next2);
+ emit_op(s, OP_drop);
+ } else {
+ emit_op(s, OP_rot3r);
+ emit_op(s, OP_undefined); /* dummy catch offset */
+ emit_op(s, OP_iterator_close);
+ }
+ } else {
+ /* execute the "finally" block */
+ emit_goto(s, OP_gosub, top->label_finally);
+ }
+ }
+ top = top->prev;
+ }
+ if (s->cur_func->is_derived_class_constructor) {
+ int label_return;
+
+ /* 'this' can be uninitialized, so it may be accessed only if
+ the derived class constructor does not return an object */
+ if (hasval) {
+ emit_op(s, OP_check_ctor_return);
+ label_return = emit_goto(s, OP_if_false, -1);
+ emit_op(s, OP_drop);
+ } else {
+ label_return = -1;
+ }
+
+ /* The error should be raised in the caller context, so we use
+ a specific opcode */
+ emit_op(s, OP_scope_get_var_checkthis);
+ emit_atom(s, JS_ATOM_this);
+ emit_u16(s, 0);
+
+ emit_label(s, label_return);
+ emit_op(s, OP_return);
+ } else if (s->cur_func->func_kind != JS_FUNC_NORMAL) {
+ emit_op(s, OP_return_async);
+ } else {
+ emit_op(s, hasval ? OP_return : OP_return_undef);
+ }
+}
+
+#define DECL_MASK_FUNC (1 << 0) /* allow normal function declaration */
+/* ored with DECL_MASK_FUNC if function declarations are allowed with a label */
+#define DECL_MASK_FUNC_WITH_LABEL (1 << 1)
+#define DECL_MASK_OTHER (1 << 2) /* all other declarations */
+#define DECL_MASK_ALL (DECL_MASK_FUNC | DECL_MASK_FUNC_WITH_LABEL | DECL_MASK_OTHER)
+
+static __exception int js_parse_statement_or_decl(JSParseState *s,
+ int decl_mask);
+
+static __exception int js_parse_statement(JSParseState *s)
+{
+ return js_parse_statement_or_decl(s, 0);
+}
+
+static __exception int js_parse_block(JSParseState *s)
+{
+ if (js_parse_expect(s, '{'))
+ return -1;
+ if (s->token.val != '}') {
+ push_scope(s);
+ for(;;) {
+ if (js_parse_statement_or_decl(s, DECL_MASK_ALL))
+ return -1;
+ if (s->token.val == '}')
+ break;
+ }
+ pop_scope(s);
+ }
+ if (next_token(s))
+ return -1;
+ return 0;
+}
+
+/* allowed parse_flags: PF_IN_ACCEPTED */
+static __exception int js_parse_var(JSParseState *s, int parse_flags, int tok,
+ BOOL export_flag)
+{
+ JSContext *ctx = s->ctx;
+ JSFunctionDef *fd = s->cur_func;
+ JSAtom name = JS_ATOM_NULL;
+
+ for (;;) {
+ if (s->token.val == TOK_IDENT) {
+ if (s->token.u.ident.is_reserved) {
+ return js_parse_error_reserved_identifier(s);
+ }
+ name = JS_DupAtom(ctx, s->token.u.ident.atom);
+ if (name == JS_ATOM_let && (tok == TOK_LET || tok == TOK_CONST)) {
+ js_parse_error(s, "'let' is not a valid lexical identifier");
+ goto var_error;
+ }
+ if (next_token(s))
+ goto var_error;
+ if (js_define_var(s, name, tok))
+ goto var_error;
+ if (export_flag) {
+ if (!add_export_entry(s, s->cur_func->module, name, name,
+ JS_EXPORT_TYPE_LOCAL))
+ goto var_error;
+ }
+
+ if (s->token.val == '=') {
+ if (next_token(s))
+ goto var_error;
+ if (tok == TOK_VAR) {
+ /* Must make a reference for proper `with` semantics */
+ int opcode, scope, label;
+ JSAtom name1;
+
+ emit_op(s, OP_scope_get_var);
+ emit_atom(s, name);
+ emit_u16(s, fd->scope_level);
+ if (get_lvalue(s, &opcode, &scope, &name1, &label, NULL, FALSE, '=') < 0)
+ goto var_error;
+ if (js_parse_assign_expr2(s, parse_flags)) {
+ JS_FreeAtom(ctx, name1);
+ goto var_error;
+ }
+ set_object_name(s, name);
+ put_lvalue(s, opcode, scope, name1, label,
+ PUT_LVALUE_NOKEEP, FALSE);
+ } else {
+ if (js_parse_assign_expr2(s, parse_flags))
+ goto var_error;
+ set_object_name(s, name);
+ emit_op(s, (tok == TOK_CONST || tok == TOK_LET) ?
+ OP_scope_put_var_init : OP_scope_put_var);
+ emit_atom(s, name);
+ emit_u16(s, fd->scope_level);
+ }
+ } else {
+ if (tok == TOK_CONST) {
+ js_parse_error(s, "missing initializer for const variable");
+ goto var_error;
+ }
+ if (tok == TOK_LET) {
+ /* initialize lexical variable upon entering its scope */
+ emit_op(s, OP_undefined);
+ emit_op(s, OP_scope_put_var_init);
+ emit_atom(s, name);
+ emit_u16(s, fd->scope_level);
+ }
+ }
+ JS_FreeAtom(ctx, name);
+ } else {
+ int skip_bits;
+ if ((s->token.val == '[' || s->token.val == '{')
+ && js_parse_skip_parens_token(s, &skip_bits, FALSE) == '=') {
+ emit_op(s, OP_undefined);
+ if (js_parse_destructuring_element(s, tok, 0, TRUE, skip_bits & SKIP_HAS_ELLIPSIS, TRUE) < 0)
+ return -1;
+ } else {
+ return js_parse_error(s, "variable name expected");
+ }
+ }
+ if (s->token.val != ',')
+ break;
+ if (next_token(s))
+ return -1;
+ }
+ return 0;
+
+ var_error:
+ JS_FreeAtom(ctx, name);
+ return -1;
+}
+
+/* test if the current token is a label. Use simplistic look-ahead scanner */
+static BOOL is_label(JSParseState *s)
+{
+ return (s->token.val == TOK_IDENT && !s->token.u.ident.is_reserved &&
+ peek_token(s, FALSE) == ':');
+}
+
+/* test if the current token is a let keyword. Use simplistic look-ahead scanner */
+static int is_let(JSParseState *s, int decl_mask)
+{
+ int res = FALSE;
+
+ if (token_is_pseudo_keyword(s, JS_ATOM_let)) {
+ JSParsePos pos;
+ js_parse_get_pos(s, &pos);
+ for (;;) {
+ if (next_token(s)) {
+ res = -1;
+ break;
+ }
+ if (s->token.val == '[') {
+ /* let [ is a syntax restriction:
+ it never introduces an ExpressionStatement */
+ res = TRUE;
+ break;
+ }
+ if (s->token.val == '{' ||
+ (s->token.val == TOK_IDENT && !s->token.u.ident.is_reserved) ||
+ s->token.val == TOK_LET ||
+ s->token.val == TOK_YIELD ||
+ s->token.val == TOK_AWAIT) {
+ /* Check for possible ASI if not scanning for Declaration */
+ /* XXX: should also check that `{` introduces a BindingPattern,
+ but Firefox does not and rejects eval("let=1;let\n{if(1)2;}") */
+ if (s->last_line_num == s->token.line_num || (decl_mask & DECL_MASK_OTHER)) {
+ res = TRUE;
+ break;
+ }
+ break;
+ }
+ break;
+ }
+ if (js_parse_seek_token(s, &pos)) {
+ res = -1;
+ }
+ }
+ return res;
+}
+
+/* XXX: handle IteratorClose when exiting the loop before the
+ enumeration is done */
+static __exception int js_parse_for_in_of(JSParseState *s, int label_name,
+ BOOL is_async)
+{
+ JSContext *ctx = s->ctx;
+ JSFunctionDef *fd = s->cur_func;
+ JSAtom var_name;
+ BOOL has_initializer, is_for_of, has_destructuring;
+ int tok, tok1, opcode, scope, block_scope_level;
+ int label_next, label_expr, label_cont, label_body, label_break;
+ int pos_next, pos_expr;
+ BlockEnv break_entry;
+
+ has_initializer = FALSE;
+ has_destructuring = FALSE;
+ is_for_of = FALSE;
+ block_scope_level = fd->scope_level;
+ label_cont = new_label(s);
+ label_body = new_label(s);
+ label_break = new_label(s);
+ label_next = new_label(s);
+
+ /* create scope for the lexical variables declared in the enumeration
+ expressions. XXX: Not completely correct because of weird capturing
+ semantics in `for (i of o) a.push(function(){return i})` */
+ push_scope(s);
+
+ /* local for_in scope starts here so individual elements
+ can be closed in statement. */
+ push_break_entry(s->cur_func, &break_entry,
+ label_name, label_break, label_cont, 1);
+ break_entry.scope_level = block_scope_level;
+
+ label_expr = emit_goto(s, OP_goto, -1);
+
+ pos_next = s->cur_func->byte_code.size;
+ emit_label(s, label_next);
+
+ tok = s->token.val;
+ switch (is_let(s, DECL_MASK_OTHER)) {
+ case TRUE:
+ tok = TOK_LET;
+ break;
+ case FALSE:
+ break;
+ default:
+ return -1;
+ }
+ if (tok == TOK_VAR || tok == TOK_LET || tok == TOK_CONST) {
+ if (next_token(s))
+ return -1;
+
+ if (!(s->token.val == TOK_IDENT && !s->token.u.ident.is_reserved)) {
+ if (s->token.val == '[' || s->token.val == '{') {
+ if (js_parse_destructuring_element(s, tok, 0, TRUE, -1, FALSE) < 0)
+ return -1;
+ has_destructuring = TRUE;
+ } else {
+ return js_parse_error(s, "variable name expected");
+ }
+ var_name = JS_ATOM_NULL;
+ } else {
+ var_name = JS_DupAtom(ctx, s->token.u.ident.atom);
+ if (next_token(s)) {
+ JS_FreeAtom(s->ctx, var_name);
+ return -1;
+ }
+ if (js_define_var(s, var_name, tok)) {
+ JS_FreeAtom(s->ctx, var_name);
+ return -1;
+ }
+ emit_op(s, (tok == TOK_CONST || tok == TOK_LET) ?
+ OP_scope_put_var_init : OP_scope_put_var);
+ emit_atom(s, var_name);
+ emit_u16(s, fd->scope_level);
+ }
+ } else if (!is_async && token_is_pseudo_keyword(s, JS_ATOM_async) &&
+ peek_token(s, FALSE) == TOK_OF) {
+ return js_parse_error(s, "'for of' expression cannot start with 'async'");
+ } else {
+ int skip_bits;
+ if ((s->token.val == '[' || s->token.val == '{')
+ && ((tok1 = js_parse_skip_parens_token(s, &skip_bits, FALSE)) == TOK_IN || tok1 == TOK_OF)) {
+ if (js_parse_destructuring_element(s, 0, 0, TRUE, skip_bits & SKIP_HAS_ELLIPSIS, TRUE) < 0)
+ return -1;
+ } else {
+ int lvalue_label;
+ if (js_parse_left_hand_side_expr(s))
+ return -1;
+ if (get_lvalue(s, &opcode, &scope, &var_name, &lvalue_label,
+ NULL, FALSE, TOK_FOR))
+ return -1;
+ put_lvalue(s, opcode, scope, var_name, lvalue_label,
+ PUT_LVALUE_NOKEEP_BOTTOM, FALSE);
+ }
+ var_name = JS_ATOM_NULL;
+ }
+ emit_goto(s, OP_goto, label_body);
+
+ pos_expr = s->cur_func->byte_code.size;
+ emit_label(s, label_expr);
+ if (s->token.val == '=') {
+ /* XXX: potential scoping issue if inside `with` statement */
+ has_initializer = TRUE;
+ /* parse and evaluate initializer prior to evaluating the
+ object (only used with "for in" with a non lexical variable
+ in non strict mode */
+ if (next_token(s) || js_parse_assign_expr2(s, 0)) {
+ JS_FreeAtom(ctx, var_name);
+ return -1;
+ }
+ if (var_name != JS_ATOM_NULL) {
+ emit_op(s, OP_scope_put_var);
+ emit_atom(s, var_name);
+ emit_u16(s, fd->scope_level);
+ }
+ }
+ JS_FreeAtom(ctx, var_name);
+
+ if (token_is_pseudo_keyword(s, JS_ATOM_of)) {
+ break_entry.has_iterator = is_for_of = TRUE;
+ break_entry.drop_count += 2;
+ if (has_initializer)
+ goto initializer_error;
+ } else if (s->token.val == TOK_IN) {
+ if (is_async)
+ return js_parse_error(s, "'for await' loop should be used with 'of'");
+ if (has_initializer &&
+ (tok != TOK_VAR || (fd->js_mode & JS_MODE_STRICT) ||
+ has_destructuring)) {
+ initializer_error:
+ return js_parse_error(s, "a declaration in the head of a for-%s loop can't have an initializer",
+ is_for_of ? "of" : "in");
+ }
+ } else {
+ return js_parse_error(s, "expected 'of' or 'in' in for control expression");
+ }
+ if (next_token(s))
+ return -1;
+ if (is_for_of) {
+ if (js_parse_assign_expr(s))
+ return -1;
+ } else {
+ if (js_parse_expr(s))
+ return -1;
+ }
+ /* close the scope after having evaluated the expression so that
+ the TDZ values are in the closures */
+ close_scopes(s, s->cur_func->scope_level, block_scope_level);
+ if (is_for_of) {
+ if (is_async)
+ emit_op(s, OP_for_await_of_start);
+ else
+ emit_op(s, OP_for_of_start);
+ /* on stack: enum_rec */
+ } else {
+ emit_op(s, OP_for_in_start);
+ /* on stack: enum_obj */
+ }
+ emit_goto(s, OP_goto, label_cont);
+
+ if (js_parse_expect(s, ')'))
+ return -1;
+
+ if (OPTIMIZE) {
+ /* move the `next` code here */
+ DynBuf *bc = &s->cur_func->byte_code;
+ int chunk_size = pos_expr - pos_next;
+ int offset = bc->size - pos_next;
+ int i;
+ dbuf_realloc(bc, bc->size + chunk_size);
+ dbuf_put(bc, bc->buf + pos_next, chunk_size);
+ memset(bc->buf + pos_next, OP_nop, chunk_size);
+ /* `next` part ends with a goto */
+ s->cur_func->last_opcode_pos = bc->size - 5;
+ /* relocate labels */
+ for (i = label_cont; i < s->cur_func->label_count; i++) {
+ LabelSlot *ls = &s->cur_func->label_slots[i];
+ if (ls->pos >= pos_next && ls->pos < pos_expr)
+ ls->pos += offset;
+ }
+ }
+
+ emit_label(s, label_body);
+ if (js_parse_statement(s))
+ return -1;
+
+ close_scopes(s, s->cur_func->scope_level, block_scope_level);
+
+ emit_label(s, label_cont);
+ if (is_for_of) {
+ if (is_async) {
+ /* call the next method */
+ /* stack: iter_obj next catch_offset */
+ emit_op(s, OP_dup3);
+ emit_op(s, OP_drop);
+ emit_op(s, OP_call_method);
+ emit_u16(s, 0);
+ /* get the result of the promise */
+ emit_op(s, OP_await);
+ /* unwrap the value and done values */
+ emit_op(s, OP_iterator_get_value_done);
+ } else {
+ emit_op(s, OP_for_of_next);
+ emit_u8(s, 0);
+ }
+ } else {
+ emit_op(s, OP_for_in_next);
+ }
+ /* on stack: enum_rec / enum_obj value bool */
+ emit_goto(s, OP_if_false, label_next);
+ /* drop the undefined value from for_xx_next */
+ emit_op(s, OP_drop);
+
+ emit_label(s, label_break);
+ if (is_for_of) {
+ /* close and drop enum_rec */
+ emit_op(s, OP_iterator_close);
+ } else {
+ emit_op(s, OP_drop);
+ }
+ pop_break_entry(s->cur_func);
+ pop_scope(s);
+ return 0;
+}
+
+static void set_eval_ret_undefined(JSParseState *s)
+{
+ if (s->cur_func->eval_ret_idx >= 0) {
+ emit_op(s, OP_undefined);
+ emit_op(s, OP_put_loc);
+ emit_u16(s, s->cur_func->eval_ret_idx);
+ }
+}
+
+static __exception int js_parse_statement_or_decl(JSParseState *s,
+ int decl_mask)
+{
+ JSContext *ctx = s->ctx;
+ JSAtom label_name;
+ int tok;
+
+ /* specific label handling */
+ /* XXX: support multiple labels on loop statements */
+ label_name = JS_ATOM_NULL;
+ if (is_label(s)) {
+ BlockEnv *be;
+
+ label_name = JS_DupAtom(ctx, s->token.u.ident.atom);
+
+ for (be = s->cur_func->top_break; be; be = be->prev) {
+ if (be->label_name == label_name) {
+ js_parse_error(s, "duplicate label name");
+ goto fail;
+ }
+ }
+
+ if (next_token(s))
+ goto fail;
+ if (js_parse_expect(s, ':'))
+ goto fail;
+ if (s->token.val != TOK_FOR
+ && s->token.val != TOK_DO
+ && s->token.val != TOK_WHILE) {
+ /* labelled regular statement */
+ int label_break, mask;
+ BlockEnv break_entry;
+
+ label_break = new_label(s);
+ push_break_entry(s->cur_func, &break_entry,
+ label_name, label_break, -1, 0);
+ if (!(s->cur_func->js_mode & JS_MODE_STRICT) &&
+ (decl_mask & DECL_MASK_FUNC_WITH_LABEL)) {
+ mask = DECL_MASK_FUNC | DECL_MASK_FUNC_WITH_LABEL;
+ } else {
+ mask = 0;
+ }
+ if (js_parse_statement_or_decl(s, mask))
+ goto fail;
+ emit_label(s, label_break);
+ pop_break_entry(s->cur_func);
+ goto done;
+ }
+ }
+
+ switch(tok = s->token.val) {
+ case '{':
+ if (js_parse_block(s))
+ goto fail;
+ break;
+ case TOK_RETURN:
+ if (s->cur_func->is_eval) {
+ js_parse_error(s, "return not in a function");
+ goto fail;
+ }
+ if (s->cur_func->func_type == JS_PARSE_FUNC_CLASS_STATIC_INIT) {
+ js_parse_error(s, "return in a static initializer block");
+ goto fail;
+ }
+ if (next_token(s))
+ goto fail;
+ if (s->token.val != ';' && s->token.val != '}' && !s->got_lf) {
+ if (js_parse_expr(s))
+ goto fail;
+ emit_return(s, TRUE);
+ } else {
+ emit_return(s, FALSE);
+ }
+ if (js_parse_expect_semi(s))
+ goto fail;
+ break;
+ case TOK_THROW:
+ if (next_token(s))
+ goto fail;
+ if (s->got_lf) {
+ js_parse_error(s, "line terminator not allowed after throw");
+ goto fail;
+ }
+ if (js_parse_expr(s))
+ goto fail;
+ emit_op(s, OP_throw);
+ if (js_parse_expect_semi(s))
+ goto fail;
+ break;
+ case TOK_LET:
+ case TOK_CONST:
+ haslet:
+ if (!(decl_mask & DECL_MASK_OTHER)) {
+ js_parse_error(s, "lexical declarations can't appear in single-statement context");
+ goto fail;
+ }
+ /* fall thru */
+ case TOK_VAR:
+ if (next_token(s))
+ goto fail;
+ if (js_parse_var(s, TRUE, tok, FALSE))
+ goto fail;
+ if (js_parse_expect_semi(s))
+ goto fail;
+ break;
+ case TOK_IF:
+ {
+ int label1, label2, mask;
+ if (next_token(s))
+ goto fail;
+ /* create a new scope for `let f;if(1) function f(){}` */
+ push_scope(s);
+ set_eval_ret_undefined(s);
+ if (js_parse_expr_paren(s))
+ goto fail;
+ label1 = emit_goto(s, OP_if_false, -1);
+ if (s->cur_func->js_mode & JS_MODE_STRICT)
+ mask = 0;
+ else
+ mask = DECL_MASK_FUNC; /* Annex B.3.4 */
+
+ if (js_parse_statement_or_decl(s, mask))
+ goto fail;
+
+ if (s->token.val == TOK_ELSE) {
+ label2 = emit_goto(s, OP_goto, -1);
+ if (next_token(s))
+ goto fail;
+
+ emit_label(s, label1);
+ if (js_parse_statement_or_decl(s, mask))
+ goto fail;
+
+ label1 = label2;
+ }
+ emit_label(s, label1);
+ pop_scope(s);
+ }
+ break;
+ case TOK_WHILE:
+ {
+ int label_cont, label_break;
+ BlockEnv break_entry;
+
+ label_cont = new_label(s);
+ label_break = new_label(s);
+
+ push_break_entry(s->cur_func, &break_entry,
+ label_name, label_break, label_cont, 0);
+
+ if (next_token(s))
+ goto fail;
+
+ set_eval_ret_undefined(s);
+
+ emit_label(s, label_cont);
+ if (js_parse_expr_paren(s))
+ goto fail;
+ emit_goto(s, OP_if_false, label_break);
+
+ if (js_parse_statement(s))
+ goto fail;
+ emit_goto(s, OP_goto, label_cont);
+
+ emit_label(s, label_break);
+
+ pop_break_entry(s->cur_func);
+ }
+ break;
+ case TOK_DO:
+ {
+ int label_cont, label_break, label1;
+ BlockEnv break_entry;
+
+ label_cont = new_label(s);
+ label_break = new_label(s);
+ label1 = new_label(s);
+
+ push_break_entry(s->cur_func, &break_entry,
+ label_name, label_break, label_cont, 0);
+
+ if (next_token(s))
+ goto fail;
+
+ emit_label(s, label1);
+
+ set_eval_ret_undefined(s);
+
+ if (js_parse_statement(s))
+ goto fail;
+
+ emit_label(s, label_cont);
+ if (js_parse_expect(s, TOK_WHILE))
+ goto fail;
+ if (js_parse_expr_paren(s))
+ goto fail;
+ /* Insert semicolon if missing */
+ if (s->token.val == ';') {
+ if (next_token(s))
+ goto fail;
+ }
+ emit_goto(s, OP_if_true, label1);
+
+ emit_label(s, label_break);
+
+ pop_break_entry(s->cur_func);
+ }
+ break;
+ case TOK_FOR:
+ {
+ int label_cont, label_break, label_body, label_test;
+ int pos_cont, pos_body, block_scope_level;
+ BlockEnv break_entry;
+ int tok, bits;
+ BOOL is_async;
+
+ if (next_token(s))
+ goto fail;
+
+ set_eval_ret_undefined(s);
+ bits = 0;
+ is_async = FALSE;
+ if (s->token.val == '(') {
+ js_parse_skip_parens_token(s, &bits, FALSE);
+ } else if (s->token.val == TOK_AWAIT) {
+ if (!(s->cur_func->func_kind & JS_FUNC_ASYNC)) {
+ js_parse_error(s, "for await is only valid in asynchronous functions");
+ goto fail;
+ }
+ is_async = TRUE;
+ if (next_token(s))
+ goto fail;
+ s->cur_func->has_await = TRUE;
+ }
+ if (js_parse_expect(s, '('))
+ goto fail;
+
+ if (!(bits & SKIP_HAS_SEMI)) {
+ /* parse for/in or for/of */
+ if (js_parse_for_in_of(s, label_name, is_async))
+ goto fail;
+ break;
+ }
+ block_scope_level = s->cur_func->scope_level;
+
+ /* create scope for the lexical variables declared in the initial,
+ test and increment expressions */
+ push_scope(s);
+ /* initial expression */
+ tok = s->token.val;
+ if (tok != ';') {
+ switch (is_let(s, DECL_MASK_OTHER)) {
+ case TRUE:
+ tok = TOK_LET;
+ break;
+ case FALSE:
+ break;
+ default:
+ goto fail;
+ }
+ if (tok == TOK_VAR || tok == TOK_LET || tok == TOK_CONST) {
+ if (next_token(s))
+ goto fail;
+ if (js_parse_var(s, FALSE, tok, FALSE))
+ goto fail;
+ } else {
+ if (js_parse_expr2(s, FALSE))
+ goto fail;
+ emit_op(s, OP_drop);
+ }
+
+ /* close the closures before the first iteration */
+ close_scopes(s, s->cur_func->scope_level, block_scope_level);
+ }
+ if (js_parse_expect(s, ';'))
+ goto fail;
+
+ label_test = new_label(s);
+ label_cont = new_label(s);
+ label_body = new_label(s);
+ label_break = new_label(s);
+
+ push_break_entry(s->cur_func, &break_entry,
+ label_name, label_break, label_cont, 0);
+
+ /* test expression */
+ if (s->token.val == ';') {
+ /* no test expression */
+ label_test = label_body;
+ } else {
+ emit_label(s, label_test);
+ if (js_parse_expr(s))
+ goto fail;
+ emit_goto(s, OP_if_false, label_break);
+ }
+ if (js_parse_expect(s, ';'))
+ goto fail;
+
+ if (s->token.val == ')') {
+ /* no end expression */
+ break_entry.label_cont = label_cont = label_test;
+ pos_cont = 0; /* avoid warning */
+ } else {
+ /* skip the end expression */
+ emit_goto(s, OP_goto, label_body);
+
+ pos_cont = s->cur_func->byte_code.size;
+ emit_label(s, label_cont);
+ if (js_parse_expr(s))
+ goto fail;
+ emit_op(s, OP_drop);
+ if (label_test != label_body)
+ emit_goto(s, OP_goto, label_test);
+ }
+ if (js_parse_expect(s, ')'))
+ goto fail;
+
+ pos_body = s->cur_func->byte_code.size;
+ emit_label(s, label_body);
+ if (js_parse_statement(s))
+ goto fail;
+
+ /* close the closures before the next iteration */
+ /* XXX: check continue case */
+ close_scopes(s, s->cur_func->scope_level, block_scope_level);
+
+ if (OPTIMIZE && label_test != label_body && label_cont != label_test) {
+ /* move the increment code here */
+ DynBuf *bc = &s->cur_func->byte_code;
+ int chunk_size = pos_body - pos_cont;
+ int offset = bc->size - pos_cont;
+ int i;
+ dbuf_realloc(bc, bc->size + chunk_size);
+ dbuf_put(bc, bc->buf + pos_cont, chunk_size);
+ memset(bc->buf + pos_cont, OP_nop, chunk_size);
+ /* increment part ends with a goto */
+ s->cur_func->last_opcode_pos = bc->size - 5;
+ /* relocate labels */
+ for (i = label_cont; i < s->cur_func->label_count; i++) {
+ LabelSlot *ls = &s->cur_func->label_slots[i];
+ if (ls->pos >= pos_cont && ls->pos < pos_body)
+ ls->pos += offset;
+ }
+ } else {
+ emit_goto(s, OP_goto, label_cont);
+ }
+
+ emit_label(s, label_break);
+
+ pop_break_entry(s->cur_func);
+ pop_scope(s);
+ }
+ break;
+ case TOK_BREAK:
+ case TOK_CONTINUE:
+ {
+ int is_cont = s->token.val - TOK_BREAK;
+ int label;
+
+ if (next_token(s))
+ goto fail;
+ if (!s->got_lf && s->token.val == TOK_IDENT && !s->token.u.ident.is_reserved)
+ label = s->token.u.ident.atom;
+ else
+ label = JS_ATOM_NULL;
+ if (emit_break(s, label, is_cont))
+ goto fail;
+ if (label != JS_ATOM_NULL) {
+ if (next_token(s))
+ goto fail;
+ }
+ if (js_parse_expect_semi(s))
+ goto fail;
+ }
+ break;
+ case TOK_SWITCH:
+ {
+ int label_case, label_break, label1;
+ int default_label_pos;
+ BlockEnv break_entry;
+
+ if (next_token(s))
+ goto fail;
+
+ set_eval_ret_undefined(s);
+ if (js_parse_expr_paren(s))
+ goto fail;
+
+ push_scope(s);
+ label_break = new_label(s);
+ push_break_entry(s->cur_func, &break_entry,
+ label_name, label_break, -1, 1);
+
+ if (js_parse_expect(s, '{'))
+ goto fail;
+
+ default_label_pos = -1;
+ label_case = -1;
+ while (s->token.val != '}') {
+ if (s->token.val == TOK_CASE) {
+ label1 = -1;
+ if (label_case >= 0) {
+ /* skip the case if needed */
+ label1 = emit_goto(s, OP_goto, -1);
+ }
+ emit_label(s, label_case);
+ label_case = -1;
+ for (;;) {
+ /* parse a sequence of case clauses */
+ if (next_token(s))
+ goto fail;
+ emit_op(s, OP_dup);
+ if (js_parse_expr(s))
+ goto fail;
+ if (js_parse_expect(s, ':'))
+ goto fail;
+ emit_op(s, OP_strict_eq);
+ if (s->token.val == TOK_CASE) {
+ label1 = emit_goto(s, OP_if_true, label1);
+ } else {
+ label_case = emit_goto(s, OP_if_false, -1);
+ emit_label(s, label1);
+ break;
+ }
+ }
+ } else if (s->token.val == TOK_DEFAULT) {
+ if (next_token(s))
+ goto fail;
+ if (js_parse_expect(s, ':'))
+ goto fail;
+ if (default_label_pos >= 0) {
+ js_parse_error(s, "duplicate default");
+ goto fail;
+ }
+ if (label_case < 0) {
+ /* falling thru direct from switch expression */
+ label_case = emit_goto(s, OP_goto, -1);
+ }
+ /* Emit a dummy label opcode. Label will be patched after
+ the end of the switch body. Do not use emit_label(s, 0)
+ because it would clobber label 0 address, preventing
+ proper optimizer operation.
+ */
+ emit_op(s, OP_label);
+ emit_u32(s, 0);
+ default_label_pos = s->cur_func->byte_code.size - 4;
+ } else {
+ if (label_case < 0) {
+ /* falling thru direct from switch expression */
+ js_parse_error(s, "invalid switch statement");
+ goto fail;
+ }
+ if (js_parse_statement_or_decl(s, DECL_MASK_ALL))
+ goto fail;
+ }
+ }
+ if (js_parse_expect(s, '}'))
+ goto fail;
+ if (default_label_pos >= 0) {
+ /* Ugly patch for the the `default` label, shameful and risky */
+ put_u32(s->cur_func->byte_code.buf + default_label_pos,
+ label_case);
+ s->cur_func->label_slots[label_case].pos = default_label_pos + 4;
+ } else {
+ emit_label(s, label_case);
+ }
+ emit_label(s, label_break);
+ emit_op(s, OP_drop); /* drop the switch expression */
+
+ pop_break_entry(s->cur_func);
+ pop_scope(s);
+ }
+ break;
+ case TOK_TRY:
+ {
+ int label_catch, label_catch2, label_finally, label_end;
+ JSAtom name;
+ BlockEnv block_env;
+
+ set_eval_ret_undefined(s);
+ if (next_token(s))
+ goto fail;
+ label_catch = new_label(s);
+ label_catch2 = new_label(s);
+ label_finally = new_label(s);
+ label_end = new_label(s);
+
+ emit_goto(s, OP_catch, label_catch);
+
+ push_break_entry(s->cur_func, &block_env,
+ JS_ATOM_NULL, -1, -1, 1);
+ block_env.label_finally = label_finally;
+
+ if (js_parse_block(s))
+ goto fail;
+
+ pop_break_entry(s->cur_func);
+
+ if (js_is_live_code(s)) {
+ /* drop the catch offset */
+ emit_op(s, OP_drop);
+ /* must push dummy value to keep same stack size */
+ emit_op(s, OP_undefined);
+ emit_goto(s, OP_gosub, label_finally);
+ emit_op(s, OP_drop);
+
+ emit_goto(s, OP_goto, label_end);
+ }
+
+ if (s->token.val == TOK_CATCH) {
+ if (next_token(s))
+ goto fail;
+
+ push_scope(s); /* catch variable */
+ emit_label(s, label_catch);
+
+ if (s->token.val == '{') {
+ /* support optional-catch-binding feature */
+ emit_op(s, OP_drop); /* pop the exception object */
+ } else {
+ if (js_parse_expect(s, '('))
+ goto fail;
+ if (!(s->token.val == TOK_IDENT && !s->token.u.ident.is_reserved)) {
+ if (s->token.val == '[' || s->token.val == '{') {
+ /* XXX: TOK_LET is not completely correct */
+ if (js_parse_destructuring_element(s, TOK_LET, 0, TRUE, -1, TRUE) < 0)
+ goto fail;
+ } else {
+ js_parse_error(s, "identifier expected");
+ goto fail;
+ }
+ } else {
+ name = JS_DupAtom(ctx, s->token.u.ident.atom);
+ if (next_token(s)
+ || js_define_var(s, name, TOK_CATCH) < 0) {
+ JS_FreeAtom(ctx, name);
+ goto fail;
+ }
+ /* store the exception value in the catch variable */
+ emit_op(s, OP_scope_put_var);
+ emit_u32(s, name);
+ emit_u16(s, s->cur_func->scope_level);
+ }
+ if (js_parse_expect(s, ')'))
+ goto fail;
+ }
+ /* XXX: should keep the address to nop it out if there is no finally block */
+ emit_goto(s, OP_catch, label_catch2);
+
+ push_scope(s); /* catch block */
+ push_break_entry(s->cur_func, &block_env, JS_ATOM_NULL,
+ -1, -1, 1);
+ block_env.label_finally = label_finally;
+
+ if (js_parse_block(s))
+ goto fail;
+
+ pop_break_entry(s->cur_func);
+ pop_scope(s); /* catch block */
+ pop_scope(s); /* catch variable */
+
+ if (js_is_live_code(s)) {
+ /* drop the catch2 offset */
+ emit_op(s, OP_drop);
+ /* XXX: should keep the address to nop it out if there is no finally block */
+ /* must push dummy value to keep same stack size */
+ emit_op(s, OP_undefined);
+ emit_goto(s, OP_gosub, label_finally);
+ emit_op(s, OP_drop);
+ emit_goto(s, OP_goto, label_end);
+ }
+ /* catch exceptions thrown in the catch block to execute the
+ * finally clause and rethrow the exception */
+ emit_label(s, label_catch2);
+ /* catch value is at TOS, no need to push undefined */
+ emit_goto(s, OP_gosub, label_finally);
+ emit_op(s, OP_throw);
+
+ } else if (s->token.val == TOK_FINALLY) {
+ /* finally without catch : execute the finally clause
+ * and rethrow the exception */
+ emit_label(s, label_catch);
+ /* catch value is at TOS, no need to push undefined */
+ emit_goto(s, OP_gosub, label_finally);
+ emit_op(s, OP_throw);
+ } else {
+ js_parse_error(s, "expecting catch or finally");
+ goto fail;
+ }
+ emit_label(s, label_finally);
+ if (s->token.val == TOK_FINALLY) {
+ int saved_eval_ret_idx = 0; /* avoid warning */
+
+ if (next_token(s))
+ goto fail;
+ /* on the stack: ret_value gosub_ret_value */
+ push_break_entry(s->cur_func, &block_env, JS_ATOM_NULL,
+ -1, -1, 2);
+
+ if (s->cur_func->eval_ret_idx >= 0) {
+ /* 'finally' updates eval_ret only if not a normal
+ termination */
+ saved_eval_ret_idx =
+ add_var(s->ctx, s->cur_func, JS_ATOM__ret_);
+ if (saved_eval_ret_idx < 0)
+ goto fail;
+ emit_op(s, OP_get_loc);
+ emit_u16(s, s->cur_func->eval_ret_idx);
+ emit_op(s, OP_put_loc);
+ emit_u16(s, saved_eval_ret_idx);
+ set_eval_ret_undefined(s);
+ }
+
+ if (js_parse_block(s))
+ goto fail;
+
+ if (s->cur_func->eval_ret_idx >= 0) {
+ emit_op(s, OP_get_loc);
+ emit_u16(s, saved_eval_ret_idx);
+ emit_op(s, OP_put_loc);
+ emit_u16(s, s->cur_func->eval_ret_idx);
+ }
+ pop_break_entry(s->cur_func);
+ }
+ emit_op(s, OP_ret);
+ emit_label(s, label_end);
+ }
+ break;
+ case ';':
+ /* empty statement */
+ if (next_token(s))
+ goto fail;
+ break;
+ case TOK_WITH:
+ if (s->cur_func->js_mode & JS_MODE_STRICT) {
+ js_parse_error(s, "invalid keyword: with");
+ goto fail;
+ } else {
+ int with_idx;
+
+ if (next_token(s))
+ goto fail;
+
+ if (js_parse_expr_paren(s))
+ goto fail;
+
+ push_scope(s);
+ with_idx = define_var(s, s->cur_func, JS_ATOM__with_,
+ JS_VAR_DEF_WITH);
+ if (with_idx < 0)
+ goto fail;
+ emit_op(s, OP_to_object);
+ emit_op(s, OP_put_loc);
+ emit_u16(s, with_idx);
+
+ set_eval_ret_undefined(s);
+ if (js_parse_statement(s))
+ goto fail;
+
+ /* Popping scope drops lexical context for the with object variable */
+ pop_scope(s);
+ }
+ break;
+ case TOK_FUNCTION:
+ /* ES6 Annex B.3.2 and B.3.3 semantics */
+ if (!(decl_mask & DECL_MASK_FUNC))
+ goto func_decl_error;
+ if (!(decl_mask & DECL_MASK_OTHER) && peek_token(s, FALSE) == '*')
+ goto func_decl_error;
+ goto parse_func_var;
+ case TOK_IDENT:
+ if (s->token.u.ident.is_reserved) {
+ js_parse_error_reserved_identifier(s);
+ goto fail;
+ }
+ /* Determine if `let` introduces a Declaration or an ExpressionStatement */
+ switch (is_let(s, decl_mask)) {
+ case TRUE:
+ tok = TOK_LET;
+ goto haslet;
+ case FALSE:
+ break;
+ default:
+ goto fail;
+ }
+ if (token_is_pseudo_keyword(s, JS_ATOM_async) &&
+ peek_token(s, TRUE) == TOK_FUNCTION) {
+ if (!(decl_mask & DECL_MASK_OTHER)) {
+ func_decl_error:
+ js_parse_error(s, "function declarations can't appear in single-statement context");
+ goto fail;
+ }
+ parse_func_var:
+ if (js_parse_function_decl(s, JS_PARSE_FUNC_VAR,
+ JS_FUNC_NORMAL, JS_ATOM_NULL,
+ s->token.ptr, s->token.line_num))
+ goto fail;
+ break;
+ }
+ goto hasexpr;
+
+ case TOK_CLASS:
+ if (!(decl_mask & DECL_MASK_OTHER)) {
+ js_parse_error(s, "class declarations can't appear in single-statement context");
+ goto fail;
+ }
+ if (js_parse_class(s, FALSE, JS_PARSE_EXPORT_NONE))
+ return -1;
+ break;
+
+ case TOK_DEBUGGER:
+ /* currently no debugger, so just skip the keyword */
+ if (next_token(s))
+ goto fail;
+ if (js_parse_expect_semi(s))
+ goto fail;
+ break;
+
+ case TOK_ENUM:
+ case TOK_EXPORT:
+ case TOK_EXTENDS:
+ js_unsupported_keyword(s, s->token.u.ident.atom);
+ goto fail;
+
+ default:
+ hasexpr:
+ if (js_parse_expr(s))
+ goto fail;
+ if (s->cur_func->eval_ret_idx >= 0) {
+ /* store the expression value so that it can be returned
+ by eval() */
+ emit_op(s, OP_put_loc);
+ emit_u16(s, s->cur_func->eval_ret_idx);
+ } else {
+ emit_op(s, OP_drop); /* drop the result */
+ }
+ if (js_parse_expect_semi(s))
+ goto fail;
+ break;
+ }
+done:
+ JS_FreeAtom(ctx, label_name);
+ return 0;
+fail:
+ JS_FreeAtom(ctx, label_name);
+ return -1;
+}
+
+/* 'name' is freed */
+static JSModuleDef *js_new_module_def(JSContext *ctx, JSAtom name)
+{
+ JSModuleDef *m;
+ m = js_mallocz(ctx, sizeof(*m));
+ if (!m) {
+ JS_FreeAtom(ctx, name);
+ return NULL;
+ }
+ m->header.ref_count = 1;
+ m->module_name = name;
+ m->module_ns = JS_UNDEFINED;
+ m->func_obj = JS_UNDEFINED;
+ m->eval_exception = JS_UNDEFINED;
+ m->meta_obj = JS_UNDEFINED;
+ m->promise = JS_UNDEFINED;
+ m->resolving_funcs[0] = JS_UNDEFINED;
+ m->resolving_funcs[1] = JS_UNDEFINED;
+ list_add_tail(&m->link, &ctx->loaded_modules);
+ return m;
+}
+
+static void js_mark_module_def(JSRuntime *rt, JSModuleDef *m,
+ JS_MarkFunc *mark_func)
+{
+ int i;
+
+ for(i = 0; i < m->export_entries_count; i++) {
+ JSExportEntry *me = &m->export_entries[i];
+ if (me->export_type == JS_EXPORT_TYPE_LOCAL &&
+ me->u.local.var_ref) {
+ mark_func(rt, &me->u.local.var_ref->header);
+ }
+ }
+
+ JS_MarkValue(rt, m->module_ns, mark_func);
+ JS_MarkValue(rt, m->func_obj, mark_func);
+ JS_MarkValue(rt, m->eval_exception, mark_func);
+ JS_MarkValue(rt, m->meta_obj, mark_func);
+ JS_MarkValue(rt, m->promise, mark_func);
+ JS_MarkValue(rt, m->resolving_funcs[0], mark_func);
+ JS_MarkValue(rt, m->resolving_funcs[1], mark_func);
+}
+
+static void js_free_module_def(JSContext *ctx, JSModuleDef *m)
+{
+ int i;
+
+ JS_FreeAtom(ctx, m->module_name);
+
+ for(i = 0; i < m->req_module_entries_count; i++) {
+ JSReqModuleEntry *rme = &m->req_module_entries[i];
+ JS_FreeAtom(ctx, rme->module_name);
+ }
+ js_free(ctx, m->req_module_entries);
+
+ for(i = 0; i < m->export_entries_count; i++) {
+ JSExportEntry *me = &m->export_entries[i];
+ if (me->export_type == JS_EXPORT_TYPE_LOCAL)
+ free_var_ref(ctx->rt, me->u.local.var_ref);
+ JS_FreeAtom(ctx, me->export_name);
+ JS_FreeAtom(ctx, me->local_name);
+ }
+ js_free(ctx, m->export_entries);
+
+ js_free(ctx, m->star_export_entries);
+
+ for(i = 0; i < m->import_entries_count; i++) {
+ JSImportEntry *mi = &m->import_entries[i];
+ JS_FreeAtom(ctx, mi->import_name);
+ }
+ js_free(ctx, m->import_entries);
+ js_free(ctx, m->async_parent_modules);
+
+ JS_FreeValue(ctx, m->module_ns);
+ JS_FreeValue(ctx, m->func_obj);
+ JS_FreeValue(ctx, m->eval_exception);
+ JS_FreeValue(ctx, m->meta_obj);
+ JS_FreeValue(ctx, m->promise);
+ JS_FreeValue(ctx, m->resolving_funcs[0]);
+ JS_FreeValue(ctx, m->resolving_funcs[1]);
+ list_del(&m->link);
+ js_free(ctx, m);
+}
+
+static int add_req_module_entry(JSContext *ctx, JSModuleDef *m,
+ JSAtom module_name)
+{
+ JSReqModuleEntry *rme;
+ int i;
+
+ /* no need to add the module request if it is already present */
+ for(i = 0; i < m->req_module_entries_count; i++) {
+ rme = &m->req_module_entries[i];
+ if (rme->module_name == module_name)
+ return i;
+ }
+
+ if (js_resize_array(ctx, (void **)&m->req_module_entries,
+ sizeof(JSReqModuleEntry),
+ &m->req_module_entries_size,
+ m->req_module_entries_count + 1))
+ return -1;
+ rme = &m->req_module_entries[m->req_module_entries_count++];
+ rme->module_name = JS_DupAtom(ctx, module_name);
+ rme->module = NULL;
+ return i;
+}
+
+static JSExportEntry *find_export_entry(JSContext *ctx, JSModuleDef *m,
+ JSAtom export_name)
+{
+ JSExportEntry *me;
+ int i;
+ for(i = 0; i < m->export_entries_count; i++) {
+ me = &m->export_entries[i];
+ if (me->export_name == export_name)
+ return me;
+ }
+ return NULL;
+}
+
+static JSExportEntry *add_export_entry2(JSContext *ctx,
+ JSParseState *s, JSModuleDef *m,
+ JSAtom local_name, JSAtom export_name,
+ JSExportTypeEnum export_type)
+{
+ JSExportEntry *me;
+
+ if (find_export_entry(ctx, m, export_name)) {
+ char buf1[ATOM_GET_STR_BUF_SIZE];
+ if (s) {
+ js_parse_error(s, "duplicate exported name '%s'",
+ JS_AtomGetStr(ctx, buf1, sizeof(buf1), export_name));
+ } else {
+ JS_ThrowSyntaxErrorAtom(ctx, "duplicate exported name '%s'", export_name);
+ }
+ return NULL;
+ }
+
+ if (js_resize_array(ctx, (void **)&m->export_entries,
+ sizeof(JSExportEntry),
+ &m->export_entries_size,
+ m->export_entries_count + 1))
+ return NULL;
+ me = &m->export_entries[m->export_entries_count++];
+ memset(me, 0, sizeof(*me));
+ me->local_name = JS_DupAtom(ctx, local_name);
+ me->export_name = JS_DupAtom(ctx, export_name);
+ me->export_type = export_type;
+ return me;
+}
+
+static JSExportEntry *add_export_entry(JSParseState *s, JSModuleDef *m,
+ JSAtom local_name, JSAtom export_name,
+ JSExportTypeEnum export_type)
+{
+ return add_export_entry2(s->ctx, s, m, local_name, export_name,
+ export_type);
+}
+
+static int add_star_export_entry(JSContext *ctx, JSModuleDef *m,
+ int req_module_idx)
+{
+ JSStarExportEntry *se;
+
+ if (js_resize_array(ctx, (void **)&m->star_export_entries,
+ sizeof(JSStarExportEntry),
+ &m->star_export_entries_size,
+ m->star_export_entries_count + 1))
+ return -1;
+ se = &m->star_export_entries[m->star_export_entries_count++];
+ se->req_module_idx = req_module_idx;
+ return 0;
+}
+
+/* create a C module */
+JSModuleDef *JS_NewCModule(JSContext *ctx, const char *name_str,
+ JSModuleInitFunc *func)
+{
+ JSModuleDef *m;
+ JSAtom name;
+ name = JS_NewAtom(ctx, name_str);
+ if (name == JS_ATOM_NULL)
+ return NULL;
+ m = js_new_module_def(ctx, name);
+ m->init_func = func;
+ return m;
+}
+
+int JS_AddModuleExport(JSContext *ctx, JSModuleDef *m, const char *export_name)
+{
+ JSExportEntry *me;
+ JSAtom name;
+ name = JS_NewAtom(ctx, export_name);
+ if (name == JS_ATOM_NULL)
+ return -1;
+ me = add_export_entry2(ctx, NULL, m, JS_ATOM_NULL, name,
+ JS_EXPORT_TYPE_LOCAL);
+ JS_FreeAtom(ctx, name);
+ if (!me)
+ return -1;
+ else
+ return 0;
+}
+
+int JS_SetModuleExport(JSContext *ctx, JSModuleDef *m, const char *export_name,
+ JSValue val)
+{
+ JSExportEntry *me;
+ JSAtom name;
+ name = JS_NewAtom(ctx, export_name);
+ if (name == JS_ATOM_NULL)
+ goto fail;
+ me = find_export_entry(ctx, m, name);
+ JS_FreeAtom(ctx, name);
+ if (!me)
+ goto fail;
+ set_value(ctx, me->u.local.var_ref->pvalue, val);
+ return 0;
+ fail:
+ JS_FreeValue(ctx, val);
+ return -1;
+}
+
+void JS_SetModuleLoaderFunc(JSRuntime *rt,
+ JSModuleNormalizeFunc *module_normalize,
+ JSModuleLoaderFunc *module_loader, void *opaque)
+{
+ rt->module_normalize_func = module_normalize;
+ rt->module_loader_func = module_loader;
+ rt->module_loader_opaque = opaque;
+}
+
+/* default module filename normalizer */
+static char *js_default_module_normalize_name(JSContext *ctx,
+ const char *base_name,
+ const char *name)
+{
+ char *filename, *p;
+ const char *r;
+ int cap;
+ int len;
+
+ if (name[0] != '.') {
+ /* if no initial dot, the module name is not modified */
+ return js_strdup(ctx, name);
+ }
+
+ p = strrchr(base_name, '/');
+ if (p)
+ len = p - base_name;
+ else
+ len = 0;
+
+ cap = len + strlen(name) + 1 + 1;
+ filename = js_malloc(ctx, cap);
+ if (!filename)
+ return NULL;
+ memcpy(filename, base_name, len);
+ filename[len] = '\0';
+
+ /* we only normalize the leading '..' or '.' */
+ r = name;
+ for(;;) {
+ if (r[0] == '.' && r[1] == '/') {
+ r += 2;
+ } else if (r[0] == '.' && r[1] == '.' && r[2] == '/') {
+ /* remove the last path element of filename, except if "."
+ or ".." */
+ if (filename[0] == '\0')
+ break;
+ p = strrchr(filename, '/');
+ if (!p)
+ p = filename;
+ else
+ p++;
+ if (!strcmp(p, ".") || !strcmp(p, ".."))
+ break;
+ if (p > filename)
+ p--;
+ *p = '\0';
+ r += 3;
+ } else {
+ break;
+ }
+ }
+ if (filename[0] != '\0')
+ pstrcat(filename, cap, "/");
+ pstrcat(filename, cap, r);
+ // printf("normalize: %s %s -> %s\n", base_name, name, filename);
+ return filename;
+}
+
+static JSModuleDef *js_find_loaded_module(JSContext *ctx, JSAtom name)
+{
+ struct list_head *el;
+ JSModuleDef *m;
+
+ /* first look at the loaded modules */
+ list_for_each(el, &ctx->loaded_modules) {
+ m = list_entry(el, JSModuleDef, link);
+ if (m->module_name == name)
+ return m;
+ }
+ return NULL;
+}
+
+/* return NULL in case of exception (e.g. module could not be loaded) */
+static JSModuleDef *js_host_resolve_imported_module(JSContext *ctx,
+ const char *base_cname,
+ const char *cname1)
+{
+ JSRuntime *rt = ctx->rt;
+ JSModuleDef *m;
+ char *cname;
+ JSAtom module_name;
+
+ if (!rt->module_normalize_func) {
+ cname = js_default_module_normalize_name(ctx, base_cname, cname1);
+ } else {
+ cname = rt->module_normalize_func(ctx, base_cname, cname1,
+ rt->module_loader_opaque);
+ }
+ if (!cname)
+ return NULL;
+
+ module_name = JS_NewAtom(ctx, cname);
+ if (module_name == JS_ATOM_NULL) {
+ js_free(ctx, cname);
+ return NULL;
+ }
+
+ /* first look at the loaded modules */
+ m = js_find_loaded_module(ctx, module_name);
+ if (m) {
+ js_free(ctx, cname);
+ JS_FreeAtom(ctx, module_name);
+ return m;
+ }
+
+ JS_FreeAtom(ctx, module_name);
+
+ /* load the module */
+ if (!rt->module_loader_func) {
+ /* XXX: use a syntax error ? */
+ JS_ThrowReferenceError(ctx, "could not load module '%s'",
+ cname);
+ js_free(ctx, cname);
+ return NULL;
+ }
+
+ m = rt->module_loader_func(ctx, cname, rt->module_loader_opaque);
+ js_free(ctx, cname);
+ return m;
+}
+
+static JSModuleDef *js_host_resolve_imported_module_atom(JSContext *ctx,
+ JSAtom base_module_name,
+ JSAtom module_name1)
+{
+ const char *base_cname, *cname;
+ JSModuleDef *m;
+
+ base_cname = JS_AtomToCString(ctx, base_module_name);
+ if (!base_cname)
+ return NULL;
+ cname = JS_AtomToCString(ctx, module_name1);
+ if (!cname) {
+ JS_FreeCString(ctx, base_cname);
+ return NULL;
+ }
+ m = js_host_resolve_imported_module(ctx, base_cname, cname);
+ JS_FreeCString(ctx, base_cname);
+ JS_FreeCString(ctx, cname);
+ return m;
+}
+
+typedef struct JSResolveEntry {
+ JSModuleDef *module;
+ JSAtom name;
+} JSResolveEntry;
+
+typedef struct JSResolveState {
+ JSResolveEntry *array;
+ int size;
+ int count;
+} JSResolveState;
+
+static int find_resolve_entry(JSResolveState *s,
+ JSModuleDef *m, JSAtom name)
+{
+ int i;
+ for(i = 0; i < s->count; i++) {
+ JSResolveEntry *re = &s->array[i];
+ if (re->module == m && re->name == name)
+ return i;
+ }
+ return -1;
+}
+
+static int add_resolve_entry(JSContext *ctx, JSResolveState *s,
+ JSModuleDef *m, JSAtom name)
+{
+ JSResolveEntry *re;
+
+ if (js_resize_array(ctx, (void **)&s->array,
+ sizeof(JSResolveEntry),
+ &s->size, s->count + 1))
+ return -1;
+ re = &s->array[s->count++];
+ re->module = m;
+ re->name = JS_DupAtom(ctx, name);
+ return 0;
+}
+
+typedef enum JSResolveResultEnum {
+ JS_RESOLVE_RES_EXCEPTION = -1, /* memory alloc error */
+ JS_RESOLVE_RES_FOUND = 0,
+ JS_RESOLVE_RES_NOT_FOUND,
+ JS_RESOLVE_RES_CIRCULAR,
+ JS_RESOLVE_RES_AMBIGUOUS,
+} JSResolveResultEnum;
+
+static JSResolveResultEnum js_resolve_export1(JSContext *ctx,
+ JSModuleDef **pmodule,
+ JSExportEntry **pme,
+ JSModuleDef *m,
+ JSAtom export_name,
+ JSResolveState *s)
+{
+ JSExportEntry *me;
+
+ *pmodule = NULL;
+ *pme = NULL;
+ if (find_resolve_entry(s, m, export_name) >= 0)
+ return JS_RESOLVE_RES_CIRCULAR;
+ if (add_resolve_entry(ctx, s, m, export_name) < 0)
+ return JS_RESOLVE_RES_EXCEPTION;
+ me = find_export_entry(ctx, m, export_name);
+ if (me) {
+ if (me->export_type == JS_EXPORT_TYPE_LOCAL) {
+ /* local export */
+ *pmodule = m;
+ *pme = me;
+ return JS_RESOLVE_RES_FOUND;
+ } else {
+ /* indirect export */
+ JSModuleDef *m1;
+ m1 = m->req_module_entries[me->u.req_module_idx].module;
+ if (me->local_name == JS_ATOM__star_) {
+ /* export ns from */
+ *pmodule = m;
+ *pme = me;
+ return JS_RESOLVE_RES_FOUND;
+ } else {
+ return js_resolve_export1(ctx, pmodule, pme, m1,
+ me->local_name, s);
+ }
+ }
+ } else {
+ if (export_name != JS_ATOM_default) {
+ /* not found in direct or indirect exports: try star exports */
+ int i;
+
+ for(i = 0; i < m->star_export_entries_count; i++) {
+ JSStarExportEntry *se = &m->star_export_entries[i];
+ JSModuleDef *m1, *res_m;
+ JSExportEntry *res_me;
+ JSResolveResultEnum ret;
+
+ m1 = m->req_module_entries[se->req_module_idx].module;
+ ret = js_resolve_export1(ctx, &res_m, &res_me, m1,
+ export_name, s);
+ if (ret == JS_RESOLVE_RES_AMBIGUOUS ||
+ ret == JS_RESOLVE_RES_EXCEPTION) {
+ return ret;
+ } else if (ret == JS_RESOLVE_RES_FOUND) {
+ if (*pme != NULL) {
+ if (*pmodule != res_m ||
+ res_me->local_name != (*pme)->local_name) {
+ *pmodule = NULL;
+ *pme = NULL;
+ return JS_RESOLVE_RES_AMBIGUOUS;
+ }
+ } else {
+ *pmodule = res_m;
+ *pme = res_me;
+ }
+ }
+ }
+ if (*pme != NULL)
+ return JS_RESOLVE_RES_FOUND;
+ }
+ return JS_RESOLVE_RES_NOT_FOUND;
+ }
+}
+
+/* If the return value is JS_RESOLVE_RES_FOUND, return the module
+ (*pmodule) and the corresponding local export entry
+ (*pme). Otherwise return (NULL, NULL) */
+static JSResolveResultEnum js_resolve_export(JSContext *ctx,
+ JSModuleDef **pmodule,
+ JSExportEntry **pme,
+ JSModuleDef *m,
+ JSAtom export_name)
+{
+ JSResolveState ss, *s = &ss;
+ int i;
+ JSResolveResultEnum ret;
+
+ s->array = NULL;
+ s->size = 0;
+ s->count = 0;
+
+ ret = js_resolve_export1(ctx, pmodule, pme, m, export_name, s);
+
+ for(i = 0; i < s->count; i++)
+ JS_FreeAtom(ctx, s->array[i].name);
+ js_free(ctx, s->array);
+
+ return ret;
+}
+
+static void js_resolve_export_throw_error(JSContext *ctx,
+ JSResolveResultEnum res,
+ JSModuleDef *m, JSAtom export_name)
+{
+ char buf1[ATOM_GET_STR_BUF_SIZE];
+ char buf2[ATOM_GET_STR_BUF_SIZE];
+ switch(res) {
+ case JS_RESOLVE_RES_EXCEPTION:
+ break;
+ default:
+ case JS_RESOLVE_RES_NOT_FOUND:
+ JS_ThrowSyntaxError(ctx, "Could not find export '%s' in module '%s'",
+ JS_AtomGetStr(ctx, buf1, sizeof(buf1), export_name),
+ JS_AtomGetStr(ctx, buf2, sizeof(buf2), m->module_name));
+ break;
+ case JS_RESOLVE_RES_CIRCULAR:
+ JS_ThrowSyntaxError(ctx, "circular reference when looking for export '%s' in module '%s'",
+ JS_AtomGetStr(ctx, buf1, sizeof(buf1), export_name),
+ JS_AtomGetStr(ctx, buf2, sizeof(buf2), m->module_name));
+ break;
+ case JS_RESOLVE_RES_AMBIGUOUS:
+ JS_ThrowSyntaxError(ctx, "export '%s' in module '%s' is ambiguous",
+ JS_AtomGetStr(ctx, buf1, sizeof(buf1), export_name),
+ JS_AtomGetStr(ctx, buf2, sizeof(buf2), m->module_name));
+ break;
+ }
+}
+
+
+typedef enum {
+ EXPORTED_NAME_AMBIGUOUS,
+ EXPORTED_NAME_NORMAL,
+ EXPORTED_NAME_NS,
+} ExportedNameEntryEnum;
+
+typedef struct ExportedNameEntry {
+ JSAtom export_name;
+ ExportedNameEntryEnum export_type;
+ union {
+ JSExportEntry *me; /* using when the list is built */
+ JSVarRef *var_ref; /* EXPORTED_NAME_NORMAL */
+ JSModuleDef *module; /* for EXPORTED_NAME_NS */
+ } u;
+} ExportedNameEntry;
+
+typedef struct GetExportNamesState {
+ JSModuleDef **modules;
+ int modules_size;
+ int modules_count;
+
+ ExportedNameEntry *exported_names;
+ int exported_names_size;
+ int exported_names_count;
+} GetExportNamesState;
+
+static int find_exported_name(GetExportNamesState *s, JSAtom name)
+{
+ int i;
+ for(i = 0; i < s->exported_names_count; i++) {
+ if (s->exported_names[i].export_name == name)
+ return i;
+ }
+ return -1;
+}
+
+static __exception int get_exported_names(JSContext *ctx,
+ GetExportNamesState *s,
+ JSModuleDef *m, BOOL from_star)
+{
+ ExportedNameEntry *en;
+ int i, j;
+
+ /* check circular reference */
+ for(i = 0; i < s->modules_count; i++) {
+ if (s->modules[i] == m)
+ return 0;
+ }
+ if (js_resize_array(ctx, (void **)&s->modules, sizeof(s->modules[0]),
+ &s->modules_size, s->modules_count + 1))
+ return -1;
+ s->modules[s->modules_count++] = m;
+
+ for(i = 0; i < m->export_entries_count; i++) {
+ JSExportEntry *me = &m->export_entries[i];
+ if (from_star && me->export_name == JS_ATOM_default)
+ continue;
+ j = find_exported_name(s, me->export_name);
+ if (j < 0) {
+ if (js_resize_array(ctx, (void **)&s->exported_names, sizeof(s->exported_names[0]),
+ &s->exported_names_size,
+ s->exported_names_count + 1))
+ return -1;
+ en = &s->exported_names[s->exported_names_count++];
+ en->export_name = me->export_name;
+ /* avoid a second lookup for simple module exports */
+ if (from_star || me->export_type != JS_EXPORT_TYPE_LOCAL)
+ en->u.me = NULL;
+ else
+ en->u.me = me;
+ } else {
+ en = &s->exported_names[j];
+ en->u.me = NULL;
+ }
+ }
+ for(i = 0; i < m->star_export_entries_count; i++) {
+ JSStarExportEntry *se = &m->star_export_entries[i];
+ JSModuleDef *m1;
+ m1 = m->req_module_entries[se->req_module_idx].module;
+ if (get_exported_names(ctx, s, m1, TRUE))
+ return -1;
+ }
+ return 0;
+}
+
+/* Unfortunately, the spec gives a different behavior from GetOwnProperty ! */
+static int js_module_ns_has(JSContext *ctx, JSValueConst obj, JSAtom atom)
+{
+ return (find_own_property1(JS_VALUE_GET_OBJ(obj), atom) != NULL);
+}
+
+static const JSClassExoticMethods js_module_ns_exotic_methods = {
+ .has_property = js_module_ns_has,
+};
+
+static int exported_names_cmp(const void *p1, const void *p2, void *opaque)
+{
+ JSContext *ctx = opaque;
+ const ExportedNameEntry *me1 = p1;
+ const ExportedNameEntry *me2 = p2;
+ JSValue str1, str2;
+ int ret;
+
+ /* XXX: should avoid allocation memory in atom comparison */
+ str1 = JS_AtomToString(ctx, me1->export_name);
+ str2 = JS_AtomToString(ctx, me2->export_name);
+ if (JS_IsException(str1) || JS_IsException(str2)) {
+ /* XXX: raise an error ? */
+ ret = 0;
+ } else {
+ ret = js_string_compare(ctx, JS_VALUE_GET_STRING(str1),
+ JS_VALUE_GET_STRING(str2));
+ }
+ JS_FreeValue(ctx, str1);
+ JS_FreeValue(ctx, str2);
+ return ret;
+}
+
+static JSValue js_module_ns_autoinit(JSContext *ctx, JSObject *p, JSAtom atom,
+ void *opaque)
+{
+ JSModuleDef *m = opaque;
+ return JS_GetModuleNamespace(ctx, m);
+}
+
+static JSValue js_build_module_ns(JSContext *ctx, JSModuleDef *m)
+{
+ JSValue obj;
+ JSObject *p;
+ GetExportNamesState s_s, *s = &s_s;
+ int i, ret;
+ JSProperty *pr;
+
+ obj = JS_NewObjectClass(ctx, JS_CLASS_MODULE_NS);
+ if (JS_IsException(obj))
+ return obj;
+ p = JS_VALUE_GET_OBJ(obj);
+
+ memset(s, 0, sizeof(*s));
+ ret = get_exported_names(ctx, s, m, FALSE);
+ js_free(ctx, s->modules);
+ if (ret)
+ goto fail;
+
+ /* Resolve the exported names. The ambiguous exports are removed */
+ for(i = 0; i < s->exported_names_count; i++) {
+ ExportedNameEntry *en = &s->exported_names[i];
+ JSResolveResultEnum res;
+ JSExportEntry *res_me;
+ JSModuleDef *res_m;
+
+ if (en->u.me) {
+ res_me = en->u.me; /* fast case: no resolution needed */
+ res_m = m;
+ res = JS_RESOLVE_RES_FOUND;
+ } else {
+ res = js_resolve_export(ctx, &res_m, &res_me, m,
+ en->export_name);
+ }
+ if (res != JS_RESOLVE_RES_FOUND) {
+ if (res != JS_RESOLVE_RES_AMBIGUOUS) {
+ js_resolve_export_throw_error(ctx, res, m, en->export_name);
+ goto fail;
+ }
+ en->export_type = EXPORTED_NAME_AMBIGUOUS;
+ } else {
+ if (res_me->local_name == JS_ATOM__star_) {
+ en->export_type = EXPORTED_NAME_NS;
+ en->u.module = res_m->req_module_entries[res_me->u.req_module_idx].module;
+ } else {
+ en->export_type = EXPORTED_NAME_NORMAL;
+ if (res_me->u.local.var_ref) {
+ en->u.var_ref = res_me->u.local.var_ref;
+ } else {
+ JSObject *p1 = JS_VALUE_GET_OBJ(res_m->func_obj);
+ p1 = JS_VALUE_GET_OBJ(res_m->func_obj);
+ en->u.var_ref = p1->u.func.var_refs[res_me->u.local.var_idx];
+ }
+ }
+ }
+ }
+
+ /* sort the exported names */
+ rqsort(s->exported_names, s->exported_names_count,
+ sizeof(s->exported_names[0]), exported_names_cmp, ctx);
+
+ for(i = 0; i < s->exported_names_count; i++) {
+ ExportedNameEntry *en = &s->exported_names[i];
+ switch(en->export_type) {
+ case EXPORTED_NAME_NORMAL:
+ {
+ JSVarRef *var_ref = en->u.var_ref;
+ pr = add_property(ctx, p, en->export_name,
+ JS_PROP_ENUMERABLE | JS_PROP_WRITABLE |
+ JS_PROP_VARREF);
+ if (!pr)
+ goto fail;
+ var_ref->header.ref_count++;
+ pr->u.var_ref = var_ref;
+ }
+ break;
+ case EXPORTED_NAME_NS:
+ /* the exported namespace must be created on demand */
+ if (JS_DefineAutoInitProperty(ctx, obj,
+ en->export_name,
+ JS_AUTOINIT_ID_MODULE_NS,
+ en->u.module, JS_PROP_ENUMERABLE | JS_PROP_WRITABLE) < 0)
+ goto fail;
+ break;
+ default:
+ break;
+ }
+ }
+
+ js_free(ctx, s->exported_names);
+
+ JS_DefinePropertyValue(ctx, obj, JS_ATOM_Symbol_toStringTag,
+ JS_AtomToString(ctx, JS_ATOM_Module),
+ 0);
+
+ p->extensible = FALSE;
+ return obj;
+ fail:
+ js_free(ctx, s->exported_names);
+ JS_FreeValue(ctx, obj);
+ return JS_EXCEPTION;
+}
+
+JSValue JS_GetModuleNamespace(JSContext *ctx, JSModuleDef *m)
+{
+ if (JS_IsUndefined(m->module_ns)) {
+ JSValue val;
+ val = js_build_module_ns(ctx, m);
+ if (JS_IsException(val))
+ return JS_EXCEPTION;
+ m->module_ns = val;
+ }
+ return JS_DupValue(ctx, m->module_ns);
+}
+
+/* Load all the required modules for module 'm' */
+static int js_resolve_module(JSContext *ctx, JSModuleDef *m)
+{
+ int i;
+ JSModuleDef *m1;
+
+ if (m->resolved)
+ return 0;
+#ifdef DUMP_MODULE_RESOLVE
+ {
+ char buf1[ATOM_GET_STR_BUF_SIZE];
+ printf("resolving module '%s':\n", JS_AtomGetStr(ctx, buf1, sizeof(buf1), m->module_name));
+ }
+#endif
+ m->resolved = TRUE;
+ /* resolve each requested module */
+ for(i = 0; i < m->req_module_entries_count; i++) {
+ JSReqModuleEntry *rme = &m->req_module_entries[i];
+ m1 = js_host_resolve_imported_module_atom(ctx, m->module_name,
+ rme->module_name);
+ if (!m1)
+ return -1;
+ rme->module = m1;
+ /* already done in js_host_resolve_imported_module() except if
+ the module was loaded with JS_EvalBinary() */
+ if (js_resolve_module(ctx, m1) < 0)
+ return -1;
+ }
+ return 0;
+}
+
+static JSVarRef *js_create_module_var(JSContext *ctx, BOOL is_lexical)
+{
+ JSVarRef *var_ref;
+ var_ref = js_malloc(ctx, sizeof(JSVarRef));
+ if (!var_ref)
+ return NULL;
+ var_ref->header.ref_count = 1;
+ if (is_lexical)
+ var_ref->value = JS_UNINITIALIZED;
+ else
+ var_ref->value = JS_UNDEFINED;
+ var_ref->pvalue = &var_ref->value;
+ var_ref->is_detached = TRUE;
+ add_gc_object(ctx->rt, &var_ref->header, JS_GC_OBJ_TYPE_VAR_REF);
+ return var_ref;
+}
+
+/* Create the <eval> function associated with the module */
+static int js_create_module_bytecode_function(JSContext *ctx, JSModuleDef *m)
+{
+ JSFunctionBytecode *b;
+ int i;
+ JSVarRef **var_refs;
+ JSValue func_obj, bfunc;
+ JSObject *p;
+
+ bfunc = m->func_obj;
+ func_obj = JS_NewObjectProtoClass(ctx, ctx->function_proto,
+ JS_CLASS_BYTECODE_FUNCTION);
+
+ if (JS_IsException(func_obj))
+ return -1;
+ b = JS_VALUE_GET_PTR(bfunc);
+
+ p = JS_VALUE_GET_OBJ(func_obj);
+ p->u.func.function_bytecode = b;
+ b->header.ref_count++;
+ p->u.func.home_object = NULL;
+ p->u.func.var_refs = NULL;
+ if (b->closure_var_count) {
+ var_refs = js_mallocz(ctx, sizeof(var_refs[0]) * b->closure_var_count);
+ if (!var_refs)
+ goto fail;
+ p->u.func.var_refs = var_refs;
+
+ /* create the global variables. The other variables are
+ imported from other modules */
+ for(i = 0; i < b->closure_var_count; i++) {
+ JSClosureVar *cv = &b->closure_var[i];
+ JSVarRef *var_ref;
+ if (cv->is_local) {
+ var_ref = js_create_module_var(ctx, cv->is_lexical);
+ if (!var_ref)
+ goto fail;
+#ifdef DUMP_MODULE_RESOLVE
+ printf("local %d: %p\n", i, var_ref);
+#endif
+ var_refs[i] = var_ref;
+ }
+ }
+ }
+ m->func_obj = func_obj;
+ JS_FreeValue(ctx, bfunc);
+ return 0;
+ fail:
+ JS_FreeValue(ctx, func_obj);
+ return -1;
+}
+
+/* must be done before js_link_module() because of cyclic references */
+static int js_create_module_function(JSContext *ctx, JSModuleDef *m)
+{
+ BOOL is_c_module;
+ int i;
+ JSVarRef *var_ref;
+
+ if (m->func_created)
+ return 0;
+
+ is_c_module = (m->init_func != NULL);
+
+ if (is_c_module) {
+ /* initialize the exported variables */
+ for(i = 0; i < m->export_entries_count; i++) {
+ JSExportEntry *me = &m->export_entries[i];
+ if (me->export_type == JS_EXPORT_TYPE_LOCAL) {
+ var_ref = js_create_module_var(ctx, FALSE);
+ if (!var_ref)
+ return -1;
+ me->u.local.var_ref = var_ref;
+ }
+ }
+ } else {
+ if (js_create_module_bytecode_function(ctx, m))
+ return -1;
+ }
+ m->func_created = TRUE;
+
+ /* do it on the dependencies */
+
+ for(i = 0; i < m->req_module_entries_count; i++) {
+ JSReqModuleEntry *rme = &m->req_module_entries[i];
+ if (js_create_module_function(ctx, rme->module) < 0)
+ return -1;
+ }
+
+ return 0;
+}
+
+
+/* Prepare a module to be executed by resolving all the imported
+ variables. */
+static int js_inner_module_linking(JSContext *ctx, JSModuleDef *m,
+ JSModuleDef **pstack_top, int index)
+{
+ int i;
+ JSImportEntry *mi;
+ JSModuleDef *m1;
+ JSVarRef **var_refs, *var_ref;
+ JSObject *p;
+ BOOL is_c_module;
+ JSValue ret_val;
+
+ if (js_check_stack_overflow(ctx->rt, 0)) {
+ JS_ThrowStackOverflow(ctx);
+ return -1;
+ }
+
+#ifdef DUMP_MODULE_RESOLVE
+ {
+ char buf1[ATOM_GET_STR_BUF_SIZE];
+ printf("js_inner_module_linking '%s':\n", JS_AtomGetStr(ctx, buf1, sizeof(buf1), m->module_name));
+ }
+#endif
+
+ if (m->status == JS_MODULE_STATUS_LINKING ||
+ m->status == JS_MODULE_STATUS_LINKED ||
+ m->status == JS_MODULE_STATUS_EVALUATING_ASYNC ||
+ m->status == JS_MODULE_STATUS_EVALUATED)
+ return index;
+
+ assert(m->status == JS_MODULE_STATUS_UNLINKED);
+ m->status = JS_MODULE_STATUS_LINKING;
+ m->dfs_index = index;
+ m->dfs_ancestor_index = index;
+ index++;
+ /* push 'm' on stack */
+ m->stack_prev = *pstack_top;
+ *pstack_top = m;
+
+ for(i = 0; i < m->req_module_entries_count; i++) {
+ JSReqModuleEntry *rme = &m->req_module_entries[i];
+ m1 = rme->module;
+ index = js_inner_module_linking(ctx, m1, pstack_top, index);
+ if (index < 0)
+ goto fail;
+ assert(m1->status == JS_MODULE_STATUS_LINKING ||
+ m1->status == JS_MODULE_STATUS_LINKED ||
+ m1->status == JS_MODULE_STATUS_EVALUATING_ASYNC ||
+ m1->status == JS_MODULE_STATUS_EVALUATED);
+ if (m1->status == JS_MODULE_STATUS_LINKING) {
+ m->dfs_ancestor_index = min_int(m->dfs_ancestor_index,
+ m1->dfs_ancestor_index);
+ }
+ }
+
+#ifdef DUMP_MODULE_RESOLVE
+ {
+ char buf1[ATOM_GET_STR_BUF_SIZE];
+ printf("instantiating module '%s':\n", JS_AtomGetStr(ctx, buf1, sizeof(buf1), m->module_name));
+ }
+#endif
+ /* check the indirect exports */
+ for(i = 0; i < m->export_entries_count; i++) {
+ JSExportEntry *me = &m->export_entries[i];
+ if (me->export_type == JS_EXPORT_TYPE_INDIRECT &&
+ me->local_name != JS_ATOM__star_) {
+ JSResolveResultEnum ret;
+ JSExportEntry *res_me;
+ JSModuleDef *res_m, *m1;
+ m1 = m->req_module_entries[me->u.req_module_idx].module;
+ ret = js_resolve_export(ctx, &res_m, &res_me, m1, me->local_name);
+ if (ret != JS_RESOLVE_RES_FOUND) {
+ js_resolve_export_throw_error(ctx, ret, m, me->export_name);
+ goto fail;
+ }
+ }
+ }
+
+#ifdef DUMP_MODULE_RESOLVE
+ {
+ printf("exported bindings:\n");
+ for(i = 0; i < m->export_entries_count; i++) {
+ JSExportEntry *me = &m->export_entries[i];
+ printf(" name="); print_atom(ctx, me->export_name);
+ printf(" local="); print_atom(ctx, me->local_name);
+ printf(" type=%d idx=%d\n", me->export_type, me->u.local.var_idx);
+ }
+ }
+#endif
+
+ is_c_module = (m->init_func != NULL);
+
+ if (!is_c_module) {
+ p = JS_VALUE_GET_OBJ(m->func_obj);
+ var_refs = p->u.func.var_refs;
+
+ for(i = 0; i < m->import_entries_count; i++) {
+ mi = &m->import_entries[i];
+#ifdef DUMP_MODULE_RESOLVE
+ printf("import var_idx=%d name=", mi->var_idx);
+ print_atom(ctx, mi->import_name);
+ printf(": ");
+#endif
+ m1 = m->req_module_entries[mi->req_module_idx].module;
+ if (mi->import_name == JS_ATOM__star_) {
+ JSValue val;
+ /* name space import */
+ val = JS_GetModuleNamespace(ctx, m1);
+ if (JS_IsException(val))
+ goto fail;
+ set_value(ctx, &var_refs[mi->var_idx]->value, val);
+#ifdef DUMP_MODULE_RESOLVE
+ printf("namespace\n");
+#endif
+ } else {
+ JSResolveResultEnum ret;
+ JSExportEntry *res_me;
+ JSModuleDef *res_m;
+ JSObject *p1;
+
+ ret = js_resolve_export(ctx, &res_m,
+ &res_me, m1, mi->import_name);
+ if (ret != JS_RESOLVE_RES_FOUND) {
+ js_resolve_export_throw_error(ctx, ret, m1, mi->import_name);
+ goto fail;
+ }
+ if (res_me->local_name == JS_ATOM__star_) {
+ JSValue val;
+ JSModuleDef *m2;
+ /* name space import from */
+ m2 = res_m->req_module_entries[res_me->u.req_module_idx].module;
+ val = JS_GetModuleNamespace(ctx, m2);
+ if (JS_IsException(val))
+ goto fail;
+ var_ref = js_create_module_var(ctx, TRUE);
+ if (!var_ref) {
+ JS_FreeValue(ctx, val);
+ goto fail;
+ }
+ set_value(ctx, &var_ref->value, val);
+ var_refs[mi->var_idx] = var_ref;
+#ifdef DUMP_MODULE_RESOLVE
+ printf("namespace from\n");
+#endif
+ } else {
+ var_ref = res_me->u.local.var_ref;
+ if (!var_ref) {
+ p1 = JS_VALUE_GET_OBJ(res_m->func_obj);
+ var_ref = p1->u.func.var_refs[res_me->u.local.var_idx];
+ }
+ var_ref->header.ref_count++;
+ var_refs[mi->var_idx] = var_ref;
+#ifdef DUMP_MODULE_RESOLVE
+ printf("local export (var_ref=%p)\n", var_ref);
+#endif
+ }
+ }
+ }
+
+ /* keep the exported variables in the module export entries (they
+ are used when the eval function is deleted and cannot be
+ initialized before in case imports are exported) */
+ for(i = 0; i < m->export_entries_count; i++) {
+ JSExportEntry *me = &m->export_entries[i];
+ if (me->export_type == JS_EXPORT_TYPE_LOCAL) {
+ var_ref = var_refs[me->u.local.var_idx];
+ var_ref->header.ref_count++;
+ me->u.local.var_ref = var_ref;
+ }
+ }
+
+ /* initialize the global variables */
+ ret_val = JS_Call(ctx, m->func_obj, JS_TRUE, 0, NULL);
+ if (JS_IsException(ret_val))
+ goto fail;
+ JS_FreeValue(ctx, ret_val);
+ }
+
+ assert(m->dfs_ancestor_index <= m->dfs_index);
+ if (m->dfs_index == m->dfs_ancestor_index) {
+ for(;;) {
+ /* pop m1 from stack */
+ m1 = *pstack_top;
+ *pstack_top = m1->stack_prev;
+ m1->status = JS_MODULE_STATUS_LINKED;
+ if (m1 == m)
+ break;
+ }
+ }
+
+#ifdef DUMP_MODULE_RESOLVE
+ printf("js_inner_module_linking done\n");
+#endif
+ return index;
+ fail:
+ return -1;
+}
+
+/* Prepare a module to be executed by resolving all the imported
+ variables. */
+static int js_link_module(JSContext *ctx, JSModuleDef *m)
+{
+ JSModuleDef *stack_top, *m1;
+
+#ifdef DUMP_MODULE_RESOLVE
+ {
+ char buf1[ATOM_GET_STR_BUF_SIZE];
+ printf("js_link_module '%s':\n", JS_AtomGetStr(ctx, buf1, sizeof(buf1), m->module_name));
+ }
+#endif
+ assert(m->status == JS_MODULE_STATUS_UNLINKED ||
+ m->status == JS_MODULE_STATUS_LINKED ||
+ m->status == JS_MODULE_STATUS_EVALUATING_ASYNC ||
+ m->status == JS_MODULE_STATUS_EVALUATED);
+ stack_top = NULL;
+ if (js_inner_module_linking(ctx, m, &stack_top, 0) < 0) {
+ while (stack_top != NULL) {
+ m1 = stack_top;
+ assert(m1->status == JS_MODULE_STATUS_LINKING);
+ m1->status = JS_MODULE_STATUS_UNLINKED;
+ stack_top = m1->stack_prev;
+ }
+ return -1;
+ }
+ assert(stack_top == NULL);
+ assert(m->status == JS_MODULE_STATUS_LINKED ||
+ m->status == JS_MODULE_STATUS_EVALUATING_ASYNC ||
+ m->status == JS_MODULE_STATUS_EVALUATED);
+ return 0;
+}
+
+/* return JS_ATOM_NULL if the name cannot be found. Only works with
+ not striped bytecode functions. */
+JSAtom JS_GetScriptOrModuleName(JSContext *ctx, int n_stack_levels)
+{
+ JSStackFrame *sf;
+ JSFunctionBytecode *b;
+ JSObject *p;
+ /* XXX: currently we just use the filename of the englobing
+ function from the debug info. May need to add a ScriptOrModule
+ info in JSFunctionBytecode. */
+ sf = ctx->rt->current_stack_frame;
+ if (!sf)
+ return JS_ATOM_NULL;
+ while (n_stack_levels-- > 0) {
+ sf = sf->prev_frame;
+ if (!sf)
+ return JS_ATOM_NULL;
+ }
+ for(;;) {
+ if (JS_VALUE_GET_TAG(sf->cur_func) != JS_TAG_OBJECT)
+ return JS_ATOM_NULL;
+ p = JS_VALUE_GET_OBJ(sf->cur_func);
+ if (!js_class_has_bytecode(p->class_id))
+ return JS_ATOM_NULL;
+ b = p->u.func.function_bytecode;
+ if (!b->is_direct_or_indirect_eval) {
+ if (!b->has_debug)
+ return JS_ATOM_NULL;
+ return JS_DupAtom(ctx, b->debug.filename);
+ } else {
+ sf = sf->prev_frame;
+ if (!sf)
+ return JS_ATOM_NULL;
+ }
+ }
+}
+
+JSAtom JS_GetModuleName(JSContext *ctx, JSModuleDef *m)
+{
+ return JS_DupAtom(ctx, m->module_name);
+}
+
+JSValue JS_GetImportMeta(JSContext *ctx, JSModuleDef *m)
+{
+ JSValue obj;
+ /* allocate meta_obj only if requested to save memory */
+ obj = m->meta_obj;
+ if (JS_IsUndefined(obj)) {
+ obj = JS_NewObjectProto(ctx, JS_NULL);
+ if (JS_IsException(obj))
+ return JS_EXCEPTION;
+ m->meta_obj = obj;
+ }
+ return JS_DupValue(ctx, obj);
+}
+
+static JSValue js_import_meta(JSContext *ctx)
+{
+ JSAtom filename;
+ JSModuleDef *m;
+
+ filename = JS_GetScriptOrModuleName(ctx, 0);
+ if (filename == JS_ATOM_NULL)
+ goto fail;
+
+ /* XXX: inefficient, need to add a module or script pointer in
+ JSFunctionBytecode */
+ m = js_find_loaded_module(ctx, filename);
+ JS_FreeAtom(ctx, filename);
+ if (!m) {
+ fail:
+ JS_ThrowTypeError(ctx, "import.meta not supported in this context");
+ return JS_EXCEPTION;
+ }
+ return JS_GetImportMeta(ctx, m);
+}
+
+static JSValue JS_NewModuleValue(JSContext *ctx, JSModuleDef *m)
+{
+ return JS_DupValue(ctx, JS_MKPTR(JS_TAG_MODULE, m));
+}
+
+static JSValue js_load_module_rejected(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int magic, JSValue *func_data)
+{
+ JSValueConst *resolving_funcs = (JSValueConst *)func_data;
+ JSValueConst error;
+ JSValue ret;
+
+ /* XXX: check if the test is necessary */
+ if (argc >= 1)
+ error = argv[0];
+ else
+ error = JS_UNDEFINED;
+ ret = JS_Call(ctx, resolving_funcs[1], JS_UNDEFINED,
+ 1, &error);
+ JS_FreeValue(ctx, ret);
+ return JS_UNDEFINED;
+}
+
+static JSValue js_load_module_fulfilled(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int magic, JSValue *func_data)
+{
+ JSValueConst *resolving_funcs = (JSValueConst *)func_data;
+ JSModuleDef *m = JS_VALUE_GET_PTR(func_data[2]);
+ JSValue ret, ns;
+
+ /* return the module namespace */
+ ns = JS_GetModuleNamespace(ctx, m);
+ if (JS_IsException(ns)) {
+ JSValue err = JS_GetException(ctx);
+ js_load_module_rejected(ctx, JS_UNDEFINED, 1, (JSValueConst *)&err, 0, func_data);
+ return JS_UNDEFINED;
+ }
+ ret = JS_Call(ctx, resolving_funcs[0], JS_UNDEFINED,
+ 1, (JSValueConst *)&ns);
+ JS_FreeValue(ctx, ret);
+ JS_FreeValue(ctx, ns);
+ return JS_UNDEFINED;
+}
+
+static void JS_LoadModuleInternal(JSContext *ctx, const char *basename,
+ const char *filename,
+ JSValueConst *resolving_funcs)
+{
+ JSValue evaluate_promise;
+ JSModuleDef *m;
+ JSValue ret, err, func_obj, evaluate_resolving_funcs[2];
+ JSValueConst func_data[3];
+
+ m = js_host_resolve_imported_module(ctx, basename, filename);
+ if (!m)
+ goto fail;
+
+ if (js_resolve_module(ctx, m) < 0) {
+ js_free_modules(ctx, JS_FREE_MODULE_NOT_RESOLVED);
+ goto fail;
+ }
+
+ /* Evaluate the module code */
+ func_obj = JS_NewModuleValue(ctx, m);
+ evaluate_promise = JS_EvalFunction(ctx, func_obj);
+ if (JS_IsException(evaluate_promise)) {
+ fail:
+ err = JS_GetException(ctx);
+ ret = JS_Call(ctx, resolving_funcs[1], JS_UNDEFINED,
+ 1, (JSValueConst *)&err);
+ JS_FreeValue(ctx, ret); /* XXX: what to do if exception ? */
+ JS_FreeValue(ctx, err);
+ return;
+ }
+
+ func_obj = JS_NewModuleValue(ctx, m);
+ func_data[0] = resolving_funcs[0];
+ func_data[1] = resolving_funcs[1];
+ func_data[2] = func_obj;
+ evaluate_resolving_funcs[0] = JS_NewCFunctionData(ctx, js_load_module_fulfilled, 0, 0, 3, func_data);
+ evaluate_resolving_funcs[1] = JS_NewCFunctionData(ctx, js_load_module_rejected, 0, 0, 3, func_data);
+ JS_FreeValue(ctx, func_obj);
+ ret = js_promise_then(ctx, evaluate_promise, 2, (JSValueConst *)evaluate_resolving_funcs);
+ JS_FreeValue(ctx, ret);
+ JS_FreeValue(ctx, evaluate_resolving_funcs[0]);
+ JS_FreeValue(ctx, evaluate_resolving_funcs[1]);
+ JS_FreeValue(ctx, evaluate_promise);
+}
+
+/* Return a promise or an exception in case of memory error. Used by
+ os.Worker() */
+JSValue JS_LoadModule(JSContext *ctx, const char *basename,
+ const char *filename)
+{
+ JSValue promise, resolving_funcs[2];
+
+ promise = JS_NewPromiseCapability(ctx, resolving_funcs);
+ if (JS_IsException(promise))
+ return JS_EXCEPTION;
+ JS_LoadModuleInternal(ctx, basename, filename,
+ (JSValueConst *)resolving_funcs);
+ JS_FreeValue(ctx, resolving_funcs[0]);
+ JS_FreeValue(ctx, resolving_funcs[1]);
+ return promise;
+}
+
+static JSValue js_dynamic_import_job(JSContext *ctx,
+ int argc, JSValueConst *argv)
+{
+ JSValueConst *resolving_funcs = argv;
+ JSValueConst basename_val = argv[2];
+ JSValueConst specifier = argv[3];
+ const char *basename = NULL, *filename;
+ JSValue ret, err;
+
+ if (!JS_IsString(basename_val)) {
+ JS_ThrowTypeError(ctx, "no function filename for import()");
+ goto exception;
+ }
+ basename = JS_ToCString(ctx, basename_val);
+ if (!basename)
+ goto exception;
+
+ filename = JS_ToCString(ctx, specifier);
+ if (!filename)
+ goto exception;
+
+ JS_LoadModuleInternal(ctx, basename, filename,
+ resolving_funcs);
+ JS_FreeCString(ctx, filename);
+ JS_FreeCString(ctx, basename);
+ return JS_UNDEFINED;
+ exception:
+ err = JS_GetException(ctx);
+ ret = JS_Call(ctx, resolving_funcs[1], JS_UNDEFINED,
+ 1, (JSValueConst *)&err);
+ JS_FreeValue(ctx, ret); /* XXX: what to do if exception ? */
+ JS_FreeValue(ctx, err);
+ JS_FreeCString(ctx, basename);
+ return JS_UNDEFINED;
+}
+
+static JSValue js_dynamic_import(JSContext *ctx, JSValueConst specifier)
+{
+ JSAtom basename;
+ JSValue promise, resolving_funcs[2], basename_val;
+ JSValueConst args[4];
+
+ basename = JS_GetScriptOrModuleName(ctx, 0);
+ if (basename == JS_ATOM_NULL)
+ basename_val = JS_NULL;
+ else
+ basename_val = JS_AtomToValue(ctx, basename);
+ JS_FreeAtom(ctx, basename);
+ if (JS_IsException(basename_val))
+ return basename_val;
+
+ promise = JS_NewPromiseCapability(ctx, resolving_funcs);
+ if (JS_IsException(promise)) {
+ JS_FreeValue(ctx, basename_val);
+ return promise;
+ }
+
+ args[0] = resolving_funcs[0];
+ args[1] = resolving_funcs[1];
+ args[2] = basename_val;
+ args[3] = specifier;
+
+ /* cannot run JS_LoadModuleInternal synchronously because it would
+ cause an unexpected recursion in js_evaluate_module() */
+ JS_EnqueueJob(ctx, js_dynamic_import_job, 4, args);
+
+ JS_FreeValue(ctx, basename_val);
+ JS_FreeValue(ctx, resolving_funcs[0]);
+ JS_FreeValue(ctx, resolving_funcs[1]);
+ return promise;
+}
+
+static void js_set_module_evaluated(JSContext *ctx, JSModuleDef *m)
+{
+ m->status = JS_MODULE_STATUS_EVALUATED;
+ if (!JS_IsUndefined(m->promise)) {
+ JSValue value, ret_val;
+ assert(m->cycle_root == m);
+ value = JS_UNDEFINED;
+ ret_val = JS_Call(ctx, m->resolving_funcs[0], JS_UNDEFINED,
+ 1, (JSValueConst *)&value);
+ JS_FreeValue(ctx, ret_val);
+ }
+}
+
+typedef struct {
+ JSModuleDef **tab;
+ int count;
+ int size;
+} ExecModuleList;
+
+/* XXX: slow. Could use a linked list instead of ExecModuleList */
+static BOOL find_in_exec_module_list(ExecModuleList *exec_list, JSModuleDef *m)
+{
+ int i;
+ for(i = 0; i < exec_list->count; i++) {
+ if (exec_list->tab[i] == m)
+ return TRUE;
+ }
+ return FALSE;
+}
+
+static int gather_available_ancestors(JSContext *ctx, JSModuleDef *module,
+ ExecModuleList *exec_list)
+{
+ int i;
+
+ if (js_check_stack_overflow(ctx->rt, 0)) {
+ JS_ThrowStackOverflow(ctx);
+ return -1;
+ }
+ for(i = 0; i < module->async_parent_modules_count; i++) {
+ JSModuleDef *m = module->async_parent_modules[i];
+ if (!find_in_exec_module_list(exec_list, m) &&
+ !m->cycle_root->eval_has_exception) {
+ assert(m->status == JS_MODULE_STATUS_EVALUATING_ASYNC);
+ assert(!m->eval_has_exception);
+ assert(m->async_evaluation);
+ assert(m->pending_async_dependencies > 0);
+ m->pending_async_dependencies--;
+ if (m->pending_async_dependencies == 0) {
+ if (js_resize_array(ctx, (void **)&exec_list->tab, sizeof(exec_list->tab[0]), &exec_list->size, exec_list->count + 1)) {
+ return -1;
+ }
+ exec_list->tab[exec_list->count++] = m;
+ if (!m->has_tla) {
+ if (gather_available_ancestors(ctx, m, exec_list))
+ return -1;
+ }
+ }
+ }
+ }
+ return 0;
+}
+
+static int exec_module_list_cmp(const void *p1, const void *p2, void *opaque)
+{
+ JSModuleDef *m1 = *(JSModuleDef **)p1;
+ JSModuleDef *m2 = *(JSModuleDef **)p2;
+ return (m1->async_evaluation_timestamp > m2->async_evaluation_timestamp) -
+ (m1->async_evaluation_timestamp < m2->async_evaluation_timestamp);
+}
+
+static int js_execute_async_module(JSContext *ctx, JSModuleDef *m);
+static int js_execute_sync_module(JSContext *ctx, JSModuleDef *m,
+ JSValue *pvalue);
+
+static JSValue js_async_module_execution_rejected(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int magic, JSValue *func_data)
+{
+ JSModuleDef *module = JS_VALUE_GET_PTR(func_data[0]);
+ JSValueConst error = argv[0];
+ int i;
+
+ if (js_check_stack_overflow(ctx->rt, 0))
+ return JS_ThrowStackOverflow(ctx);
+
+ if (module->status == JS_MODULE_STATUS_EVALUATED) {
+ assert(module->eval_has_exception);
+ return JS_UNDEFINED;
+ }
+
+ assert(module->status == JS_MODULE_STATUS_EVALUATING_ASYNC);
+ assert(!module->eval_has_exception);
+ assert(module->async_evaluation);
+
+ module->eval_has_exception = TRUE;
+ module->eval_exception = JS_DupValue(ctx, error);
+ module->status = JS_MODULE_STATUS_EVALUATED;
+
+ for(i = 0; i < module->async_parent_modules_count; i++) {
+ JSModuleDef *m = module->async_parent_modules[i];
+ JSValue m_obj = JS_NewModuleValue(ctx, m);
+ js_async_module_execution_rejected(ctx, JS_UNDEFINED, 1, &error, 0,
+ &m_obj);
+ JS_FreeValue(ctx, m_obj);
+ }
+
+ if (!JS_IsUndefined(module->promise)) {
+ JSValue ret_val;
+ assert(module->cycle_root == module);
+ ret_val = JS_Call(ctx, module->resolving_funcs[1], JS_UNDEFINED,
+ 1, &error);
+ JS_FreeValue(ctx, ret_val);
+ }
+ return JS_UNDEFINED;
+}
+
+static JSValue js_async_module_execution_fulfilled(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int magic, JSValue *func_data)
+{
+ JSModuleDef *module = JS_VALUE_GET_PTR(func_data[0]);
+ ExecModuleList exec_list_s, *exec_list = &exec_list_s;
+ int i;
+
+ if (module->status == JS_MODULE_STATUS_EVALUATED) {
+ assert(module->eval_has_exception);
+ return JS_UNDEFINED;
+ }
+ assert(module->status == JS_MODULE_STATUS_EVALUATING_ASYNC);
+ assert(!module->eval_has_exception);
+ assert(module->async_evaluation);
+ module->async_evaluation = FALSE;
+ js_set_module_evaluated(ctx, module);
+
+ exec_list->tab = NULL;
+ exec_list->count = 0;
+ exec_list->size = 0;
+
+ if (gather_available_ancestors(ctx, module, exec_list) < 0) {
+ js_free(ctx, exec_list->tab);
+ return JS_EXCEPTION;
+ }
+
+ /* sort by increasing async_evaluation timestamp */
+ rqsort(exec_list->tab, exec_list->count, sizeof(exec_list->tab[0]),
+ exec_module_list_cmp, NULL);
+
+ for(i = 0; i < exec_list->count; i++) {
+ JSModuleDef *m = exec_list->tab[i];
+ if (m->status == JS_MODULE_STATUS_EVALUATED) {
+ assert(m->eval_has_exception);
+ } else if (m->has_tla) {
+ js_execute_async_module(ctx, m);
+ } else {
+ JSValue error;
+ if (js_execute_sync_module(ctx, m, &error) < 0) {
+ JSValue m_obj = JS_NewModuleValue(ctx, m);
+ js_async_module_execution_rejected(ctx, JS_UNDEFINED,
+ 1, (JSValueConst *)&error, 0,
+ &m_obj);
+ JS_FreeValue(ctx, m_obj);
+ JS_FreeValue(ctx, error);
+ } else {
+ js_set_module_evaluated(ctx, m);
+ }
+ }
+ }
+ js_free(ctx, exec_list->tab);
+ return JS_UNDEFINED;
+}
+
+static int js_execute_async_module(JSContext *ctx, JSModuleDef *m)
+{
+ JSValue promise, m_obj;
+ JSValue resolve_funcs[2], ret_val;
+ promise = js_async_function_call(ctx, m->func_obj, JS_UNDEFINED, 0, NULL, 0);
+ if (JS_IsException(promise))
+ return -1;
+ m_obj = JS_NewModuleValue(ctx, m);
+ resolve_funcs[0] = JS_NewCFunctionData(ctx, js_async_module_execution_fulfilled, 0, 0, 1, (JSValueConst *)&m_obj);
+ resolve_funcs[1] = JS_NewCFunctionData(ctx, js_async_module_execution_rejected, 0, 0, 1, (JSValueConst *)&m_obj);
+ ret_val = js_promise_then(ctx, promise, 2, (JSValueConst *)resolve_funcs);
+ JS_FreeValue(ctx, ret_val);
+ JS_FreeValue(ctx, m_obj);
+ JS_FreeValue(ctx, resolve_funcs[0]);
+ JS_FreeValue(ctx, resolve_funcs[1]);
+ JS_FreeValue(ctx, promise);
+ return 0;
+}
+
+/* return < 0 in case of exception. *pvalue contains the exception. */
+static int js_execute_sync_module(JSContext *ctx, JSModuleDef *m,
+ JSValue *pvalue)
+{
+ if (m->init_func) {
+ /* C module init : no asynchronous execution */
+ if (m->init_func(ctx, m) < 0)
+ goto fail;
+ } else {
+ JSValue promise;
+ JSPromiseStateEnum state;
+
+ promise = js_async_function_call(ctx, m->func_obj, JS_UNDEFINED, 0, NULL, 0);
+ if (JS_IsException(promise))
+ goto fail;
+ state = JS_PromiseState(ctx, promise);
+ if (state == JS_PROMISE_FULFILLED) {
+ JS_FreeValue(ctx, promise);
+ } else if (state == JS_PROMISE_REJECTED) {
+ *pvalue = JS_PromiseResult(ctx, promise);
+ JS_FreeValue(ctx, promise);
+ return -1;
+ } else {
+ JS_FreeValue(ctx, promise);
+ JS_ThrowTypeError(ctx, "promise is pending");
+ fail:
+ *pvalue = JS_GetException(ctx);
+ return -1;
+ }
+ }
+ *pvalue = JS_UNDEFINED;
+ return 0;
+}
+
+/* spec: InnerModuleEvaluation. Return (index, JS_UNDEFINED) or (-1,
+ exception) */
+static int js_inner_module_evaluation(JSContext *ctx, JSModuleDef *m,
+ int index, JSModuleDef **pstack_top,
+ JSValue *pvalue)
+{
+ JSModuleDef *m1;
+ int i;
+
+ if (js_check_stack_overflow(ctx->rt, 0)) {
+ JS_ThrowStackOverflow(ctx);
+ *pvalue = JS_GetException(ctx);
+ return -1;
+ }
+
+#ifdef DUMP_MODULE_RESOLVE
+ {
+ char buf1[ATOM_GET_STR_BUF_SIZE];
+ printf("js_inner_module_evaluation '%s':\n", JS_AtomGetStr(ctx, buf1, sizeof(buf1), m->module_name));
+ }
+#endif
+
+ if (m->status == JS_MODULE_STATUS_EVALUATING_ASYNC ||
+ m->status == JS_MODULE_STATUS_EVALUATED) {
+ if (m->eval_has_exception) {
+ *pvalue = JS_DupValue(ctx, m->eval_exception);
+ return -1;
+ } else {
+ *pvalue = JS_UNDEFINED;
+ return index;
+ }
+ }
+ if (m->status == JS_MODULE_STATUS_EVALUATING) {
+ *pvalue = JS_UNDEFINED;
+ return index;
+ }
+ assert(m->status == JS_MODULE_STATUS_LINKED);
+
+ m->status = JS_MODULE_STATUS_EVALUATING;
+ m->dfs_index = index;
+ m->dfs_ancestor_index = index;
+ m->pending_async_dependencies = 0;
+ index++;
+ /* push 'm' on stack */
+ m->stack_prev = *pstack_top;
+ *pstack_top = m;
+
+ for(i = 0; i < m->req_module_entries_count; i++) {
+ JSReqModuleEntry *rme = &m->req_module_entries[i];
+ m1 = rme->module;
+ index = js_inner_module_evaluation(ctx, m1, index, pstack_top, pvalue);
+ if (index < 0)
+ return -1;
+ assert(m1->status == JS_MODULE_STATUS_EVALUATING ||
+ m1->status == JS_MODULE_STATUS_EVALUATING_ASYNC ||
+ m1->status == JS_MODULE_STATUS_EVALUATED);
+ if (m1->status == JS_MODULE_STATUS_EVALUATING) {
+ m->dfs_ancestor_index = min_int(m->dfs_ancestor_index,
+ m1->dfs_ancestor_index);
+ } else {
+ m1 = m1->cycle_root;
+ assert(m1->status == JS_MODULE_STATUS_EVALUATING_ASYNC ||
+ m1->status == JS_MODULE_STATUS_EVALUATED);
+ if (m1->eval_has_exception) {
+ *pvalue = JS_DupValue(ctx, m1->eval_exception);
+ return -1;
+ }
+ }
+ if (m1->async_evaluation) {
+ m->pending_async_dependencies++;
+ if (js_resize_array(ctx, (void **)&m1->async_parent_modules, sizeof(m1->async_parent_modules[0]), &m1->async_parent_modules_size, m1->async_parent_modules_count + 1)) {
+ *pvalue = JS_GetException(ctx);
+ return -1;
+ }
+ m1->async_parent_modules[m1->async_parent_modules_count++] = m;
+ }
+ }
+
+ if (m->pending_async_dependencies > 0) {
+ assert(!m->async_evaluation);
+ m->async_evaluation = TRUE;
+ m->async_evaluation_timestamp =
+ ctx->rt->module_async_evaluation_next_timestamp++;
+ } else if (m->has_tla) {
+ assert(!m->async_evaluation);
+ m->async_evaluation = TRUE;
+ m->async_evaluation_timestamp =
+ ctx->rt->module_async_evaluation_next_timestamp++;
+ js_execute_async_module(ctx, m);
+ } else {
+ if (js_execute_sync_module(ctx, m, pvalue) < 0)
+ return -1;
+ }
+
+ assert(m->dfs_ancestor_index <= m->dfs_index);
+ if (m->dfs_index == m->dfs_ancestor_index) {
+ for(;;) {
+ /* pop m1 from stack */
+ m1 = *pstack_top;
+ *pstack_top = m1->stack_prev;
+ if (!m1->async_evaluation) {
+ m1->status = JS_MODULE_STATUS_EVALUATED;
+ } else {
+ m1->status = JS_MODULE_STATUS_EVALUATING_ASYNC;
+ }
+ /* spec bug: cycle_root must be assigned before the test */
+ m1->cycle_root = m;
+ if (m1 == m)
+ break;
+ }
+ }
+ *pvalue = JS_UNDEFINED;
+ return index;
+}
+
+/* Run the <eval> function of the module and of all its requested
+ modules. Return a promise or an exception. */
+static JSValue js_evaluate_module(JSContext *ctx, JSModuleDef *m)
+{
+ JSModuleDef *m1, *stack_top;
+ JSValue ret_val, result;
+
+ assert(m->status == JS_MODULE_STATUS_LINKED ||
+ m->status == JS_MODULE_STATUS_EVALUATING_ASYNC ||
+ m->status == JS_MODULE_STATUS_EVALUATED);
+ if (m->status == JS_MODULE_STATUS_EVALUATING_ASYNC ||
+ m->status == JS_MODULE_STATUS_EVALUATED) {
+ m = m->cycle_root;
+ }
+ /* a promise may be created only on the cycle_root of a cycle */
+ if (!JS_IsUndefined(m->promise))
+ return JS_DupValue(ctx, m->promise);
+ m->promise = JS_NewPromiseCapability(ctx, m->resolving_funcs);
+ if (JS_IsException(m->promise))
+ return JS_EXCEPTION;
+
+ stack_top = NULL;
+ if (js_inner_module_evaluation(ctx, m, 0, &stack_top, &result) < 0) {
+ while (stack_top != NULL) {
+ m1 = stack_top;
+ assert(m1->status == JS_MODULE_STATUS_EVALUATING);
+ m1->status = JS_MODULE_STATUS_EVALUATED;
+ m1->eval_has_exception = TRUE;
+ m1->eval_exception = JS_DupValue(ctx, result);
+ m1->cycle_root = m; /* spec bug: should be present */
+ stack_top = m1->stack_prev;
+ }
+ JS_FreeValue(ctx, result);
+ assert(m->status == JS_MODULE_STATUS_EVALUATED);
+ assert(m->eval_has_exception);
+ ret_val = JS_Call(ctx, m->resolving_funcs[1], JS_UNDEFINED,
+ 1, (JSValueConst *)&m->eval_exception);
+ JS_FreeValue(ctx, ret_val);
+ } else {
+ assert(m->status == JS_MODULE_STATUS_EVALUATING_ASYNC ||
+ m->status == JS_MODULE_STATUS_EVALUATED);
+ assert(!m->eval_has_exception);
+ if (!m->async_evaluation) {
+ JSValue value;
+ assert(m->status == JS_MODULE_STATUS_EVALUATED);
+ value = JS_UNDEFINED;
+ ret_val = JS_Call(ctx, m->resolving_funcs[0], JS_UNDEFINED,
+ 1, (JSValueConst *)&value);
+ JS_FreeValue(ctx, ret_val);
+ }
+ assert(stack_top == NULL);
+ }
+ return JS_DupValue(ctx, m->promise);
+}
+
+static __exception JSAtom js_parse_from_clause(JSParseState *s)
+{
+ JSAtom module_name;
+ if (!token_is_pseudo_keyword(s, JS_ATOM_from)) {
+ js_parse_error(s, "from clause expected");
+ return JS_ATOM_NULL;
+ }
+ if (next_token(s))
+ return JS_ATOM_NULL;
+ if (s->token.val != TOK_STRING) {
+ js_parse_error(s, "string expected");
+ return JS_ATOM_NULL;
+ }
+ module_name = JS_ValueToAtom(s->ctx, s->token.u.str.str);
+ if (module_name == JS_ATOM_NULL)
+ return JS_ATOM_NULL;
+ if (next_token(s)) {
+ JS_FreeAtom(s->ctx, module_name);
+ return JS_ATOM_NULL;
+ }
+ return module_name;
+}
+
+static __exception int js_parse_export(JSParseState *s)
+{
+ JSContext *ctx = s->ctx;
+ JSModuleDef *m = s->cur_func->module;
+ JSAtom local_name, export_name;
+ int first_export, idx, i, tok;
+ JSAtom module_name;
+ JSExportEntry *me;
+
+ if (next_token(s))
+ return -1;
+
+ tok = s->token.val;
+ if (tok == TOK_CLASS) {
+ return js_parse_class(s, FALSE, JS_PARSE_EXPORT_NAMED);
+ } else if (tok == TOK_FUNCTION ||
+ (token_is_pseudo_keyword(s, JS_ATOM_async) &&
+ peek_token(s, TRUE) == TOK_FUNCTION)) {
+ return js_parse_function_decl2(s, JS_PARSE_FUNC_STATEMENT,
+ JS_FUNC_NORMAL, JS_ATOM_NULL,
+ s->token.ptr, s->token.line_num,
+ JS_PARSE_EXPORT_NAMED, NULL);
+ }
+
+ if (next_token(s))
+ return -1;
+
+ switch(tok) {
+ case '{':
+ first_export = m->export_entries_count;
+ while (s->token.val != '}') {
+ if (!token_is_ident(s->token.val)) {
+ js_parse_error(s, "identifier expected");
+ return -1;
+ }
+ local_name = JS_DupAtom(ctx, s->token.u.ident.atom);
+ export_name = JS_ATOM_NULL;
+ if (next_token(s))
+ goto fail;
+ if (token_is_pseudo_keyword(s, JS_ATOM_as)) {
+ if (next_token(s))
+ goto fail;
+ if (!token_is_ident(s->token.val)) {
+ js_parse_error(s, "identifier expected");
+ goto fail;
+ }
+ export_name = JS_DupAtom(ctx, s->token.u.ident.atom);
+ if (next_token(s)) {
+ fail:
+ JS_FreeAtom(ctx, local_name);
+ fail1:
+ JS_FreeAtom(ctx, export_name);
+ return -1;
+ }
+ } else {
+ export_name = JS_DupAtom(ctx, local_name);
+ }
+ me = add_export_entry(s, m, local_name, export_name,
+ JS_EXPORT_TYPE_LOCAL);
+ JS_FreeAtom(ctx, local_name);
+ JS_FreeAtom(ctx, export_name);
+ if (!me)
+ return -1;
+ if (s->token.val != ',')
+ break;
+ if (next_token(s))
+ return -1;
+ }
+ if (js_parse_expect(s, '}'))
+ return -1;
+ if (token_is_pseudo_keyword(s, JS_ATOM_from)) {
+ module_name = js_parse_from_clause(s);
+ if (module_name == JS_ATOM_NULL)
+ return -1;
+ idx = add_req_module_entry(ctx, m, module_name);
+ JS_FreeAtom(ctx, module_name);
+ if (idx < 0)
+ return -1;
+ for(i = first_export; i < m->export_entries_count; i++) {
+ me = &m->export_entries[i];
+ me->export_type = JS_EXPORT_TYPE_INDIRECT;
+ me->u.req_module_idx = idx;
+ }
+ }
+ break;
+ case '*':
+ if (token_is_pseudo_keyword(s, JS_ATOM_as)) {
+ /* export ns from */
+ if (next_token(s))
+ return -1;
+ if (!token_is_ident(s->token.val)) {
+ js_parse_error(s, "identifier expected");
+ return -1;
+ }
+ export_name = JS_DupAtom(ctx, s->token.u.ident.atom);
+ if (next_token(s))
+ goto fail1;
+ module_name = js_parse_from_clause(s);
+ if (module_name == JS_ATOM_NULL)
+ goto fail1;
+ idx = add_req_module_entry(ctx, m, module_name);
+ JS_FreeAtom(ctx, module_name);
+ if (idx < 0)
+ goto fail1;
+ me = add_export_entry(s, m, JS_ATOM__star_, export_name,
+ JS_EXPORT_TYPE_INDIRECT);
+ JS_FreeAtom(ctx, export_name);
+ if (!me)
+ return -1;
+ me->u.req_module_idx = idx;
+ } else {
+ module_name = js_parse_from_clause(s);
+ if (module_name == JS_ATOM_NULL)
+ return -1;
+ idx = add_req_module_entry(ctx, m, module_name);
+ JS_FreeAtom(ctx, module_name);
+ if (idx < 0)
+ return -1;
+ if (add_star_export_entry(ctx, m, idx) < 0)
+ return -1;
+ }
+ break;
+ case TOK_DEFAULT:
+ if (s->token.val == TOK_CLASS) {
+ return js_parse_class(s, FALSE, JS_PARSE_EXPORT_DEFAULT);
+ } else if (s->token.val == TOK_FUNCTION ||
+ (token_is_pseudo_keyword(s, JS_ATOM_async) &&
+ peek_token(s, TRUE) == TOK_FUNCTION)) {
+ return js_parse_function_decl2(s, JS_PARSE_FUNC_STATEMENT,
+ JS_FUNC_NORMAL, JS_ATOM_NULL,
+ s->token.ptr, s->token.line_num,
+ JS_PARSE_EXPORT_DEFAULT, NULL);
+ } else {
+ if (js_parse_assign_expr(s))
+ return -1;
+ }
+ /* set the name of anonymous functions */
+ set_object_name(s, JS_ATOM_default);
+
+ /* store the value in the _default_ global variable and export
+ it */
+ local_name = JS_ATOM__default_;
+ if (define_var(s, s->cur_func, local_name, JS_VAR_DEF_LET) < 0)
+ return -1;
+ emit_op(s, OP_scope_put_var_init);
+ emit_atom(s, local_name);
+ emit_u16(s, 0);
+
+ if (!add_export_entry(s, m, local_name, JS_ATOM_default,
+ JS_EXPORT_TYPE_LOCAL))
+ return -1;
+ break;
+ case TOK_VAR:
+ case TOK_LET:
+ case TOK_CONST:
+ return js_parse_var(s, TRUE, tok, TRUE);
+ default:
+ return js_parse_error(s, "invalid export syntax");
+ }
+ return js_parse_expect_semi(s);
+}
+
+static int add_closure_var(JSContext *ctx, JSFunctionDef *s,
+ BOOL is_local, BOOL is_arg,
+ int var_idx, JSAtom var_name,
+ BOOL is_const, BOOL is_lexical,
+ JSVarKindEnum var_kind);
+
+static int add_import(JSParseState *s, JSModuleDef *m,
+ JSAtom local_name, JSAtom import_name)
+{
+ JSContext *ctx = s->ctx;
+ int i, var_idx;
+ JSImportEntry *mi;
+ BOOL is_local;
+
+ if (local_name == JS_ATOM_arguments || local_name == JS_ATOM_eval)
+ return js_parse_error(s, "invalid import binding");
+
+ if (local_name != JS_ATOM_default) {
+ for (i = 0; i < s->cur_func->closure_var_count; i++) {
+ if (s->cur_func->closure_var[i].var_name == local_name)
+ return js_parse_error(s, "duplicate import binding");
+ }
+ }
+
+ is_local = (import_name == JS_ATOM__star_);
+ var_idx = add_closure_var(ctx, s->cur_func, is_local, FALSE,
+ m->import_entries_count,
+ local_name, TRUE, TRUE, FALSE);
+ if (var_idx < 0)
+ return -1;
+ if (js_resize_array(ctx, (void **)&m->import_entries,
+ sizeof(JSImportEntry),
+ &m->import_entries_size,
+ m->import_entries_count + 1))
+ return -1;
+ mi = &m->import_entries[m->import_entries_count++];
+ mi->import_name = JS_DupAtom(ctx, import_name);
+ mi->var_idx = var_idx;
+ return 0;
+}
+
+static __exception int js_parse_import(JSParseState *s)
+{
+ JSContext *ctx = s->ctx;
+ JSModuleDef *m = s->cur_func->module;
+ JSAtom local_name, import_name, module_name;
+ int first_import, i, idx;
+
+ if (next_token(s))
+ return -1;
+
+ first_import = m->import_entries_count;
+ if (s->token.val == TOK_STRING) {
+ module_name = JS_ValueToAtom(ctx, s->token.u.str.str);
+ if (module_name == JS_ATOM_NULL)
+ return -1;
+ if (next_token(s)) {
+ JS_FreeAtom(ctx, module_name);
+ return -1;
+ }
+ } else {
+ if (s->token.val == TOK_IDENT) {
+ if (s->token.u.ident.is_reserved) {
+ return js_parse_error_reserved_identifier(s);
+ }
+ /* "default" import */
+ local_name = JS_DupAtom(ctx, s->token.u.ident.atom);
+ import_name = JS_ATOM_default;
+ if (next_token(s))
+ goto fail;
+ if (add_import(s, m, local_name, import_name))
+ goto fail;
+ JS_FreeAtom(ctx, local_name);
+
+ if (s->token.val != ',')
+ goto end_import_clause;
+ if (next_token(s))
+ return -1;
+ }
+
+ if (s->token.val == '*') {
+ /* name space import */
+ if (next_token(s))
+ return -1;
+ if (!token_is_pseudo_keyword(s, JS_ATOM_as))
+ return js_parse_error(s, "expecting 'as'");
+ if (next_token(s))
+ return -1;
+ if (!token_is_ident(s->token.val)) {
+ js_parse_error(s, "identifier expected");
+ return -1;
+ }
+ local_name = JS_DupAtom(ctx, s->token.u.ident.atom);
+ import_name = JS_ATOM__star_;
+ if (next_token(s))
+ goto fail;
+ if (add_import(s, m, local_name, import_name))
+ goto fail;
+ JS_FreeAtom(ctx, local_name);
+ } else if (s->token.val == '{') {
+ if (next_token(s))
+ return -1;
+
+ while (s->token.val != '}') {
+ if (!token_is_ident(s->token.val)) {
+ js_parse_error(s, "identifier expected");
+ return -1;
+ }
+ import_name = JS_DupAtom(ctx, s->token.u.ident.atom);
+ local_name = JS_ATOM_NULL;
+ if (next_token(s))
+ goto fail;
+ if (token_is_pseudo_keyword(s, JS_ATOM_as)) {
+ if (next_token(s))
+ goto fail;
+ if (!token_is_ident(s->token.val)) {
+ js_parse_error(s, "identifier expected");
+ goto fail;
+ }
+ local_name = JS_DupAtom(ctx, s->token.u.ident.atom);
+ if (next_token(s)) {
+ fail:
+ JS_FreeAtom(ctx, local_name);
+ JS_FreeAtom(ctx, import_name);
+ return -1;
+ }
+ } else {
+ local_name = JS_DupAtom(ctx, import_name);
+ }
+ if (add_import(s, m, local_name, import_name))
+ goto fail;
+ JS_FreeAtom(ctx, local_name);
+ JS_FreeAtom(ctx, import_name);
+ if (s->token.val != ',')
+ break;
+ if (next_token(s))
+ return -1;
+ }
+ if (js_parse_expect(s, '}'))
+ return -1;
+ }
+ end_import_clause:
+ module_name = js_parse_from_clause(s);
+ if (module_name == JS_ATOM_NULL)
+ return -1;
+ }
+ idx = add_req_module_entry(ctx, m, module_name);
+ JS_FreeAtom(ctx, module_name);
+ if (idx < 0)
+ return -1;
+ for(i = first_import; i < m->import_entries_count; i++)
+ m->import_entries[i].req_module_idx = idx;
+
+ return js_parse_expect_semi(s);
+}
+
+static __exception int js_parse_source_element(JSParseState *s)
+{
+ JSFunctionDef *fd = s->cur_func;
+ int tok;
+
+ if (s->token.val == TOK_FUNCTION ||
+ (token_is_pseudo_keyword(s, JS_ATOM_async) &&
+ peek_token(s, TRUE) == TOK_FUNCTION)) {
+
+ if (peek_token(s, TRUE) == '(') {
+ /* Spidermonkey 1.8.5 mode: accept top function statements as expressions */
+ if (js_parse_expr(s))
+ return -1;
+ if (s->cur_func->eval_ret_idx >= 0) {
+ /* store the expression value so that it can be returned by eval() */
+ emit_op(s, OP_put_loc);
+ emit_u16(s, s->cur_func->eval_ret_idx);
+ } else {
+ emit_op(s, OP_drop); /* drop the result */
+ }
+ } else {
+ if (js_parse_function_decl(s, JS_PARSE_FUNC_STATEMENT,
+ JS_FUNC_NORMAL, JS_ATOM_NULL,
+ s->token.ptr, s->token.line_num))
+ return -1;
+ }
+ } else if (s->token.val == TOK_EXPORT && fd->module) {
+ if (js_parse_export(s))
+ return -1;
+ } else if (s->token.val == TOK_IMPORT && fd->module &&
+ ((tok = peek_token(s, FALSE)) != '(' && tok != '.')) {
+ /* the peek_token is needed to avoid confusion with ImportCall
+ (dynamic import) or import.meta */
+ if (js_parse_import(s))
+ return -1;
+ } else {
+ if (js_parse_statement_or_decl(s, DECL_MASK_ALL))
+ return -1;
+ }
+ return 0;
+}
+
+static JSFunctionDef *js_new_function_def(JSContext *ctx,
+ JSFunctionDef *parent,
+ BOOL is_eval,
+ BOOL is_func_expr,
+ const char *filename, int line_num)
+{
+ JSFunctionDef *fd;
+
+ fd = js_mallocz(ctx, sizeof(*fd));
+ if (!fd)
+ return NULL;
+
+ fd->ctx = ctx;
+ init_list_head(&fd->child_list);
+
+ /* insert in parent list */
+ fd->parent = parent;
+ fd->parent_cpool_idx = -1;
+ if (parent) {
+ list_add_tail(&fd->link, &parent->child_list);
+ fd->js_mode = parent->js_mode;
+ fd->parent_scope_level = parent->scope_level;
+ }
+
+ fd->is_eval = is_eval;
+ fd->is_func_expr = is_func_expr;
+ js_dbuf_init(ctx, &fd->byte_code);
+ fd->last_opcode_pos = -1;
+ fd->func_name = JS_ATOM_NULL;
+ fd->var_object_idx = -1;
+ fd->arg_var_object_idx = -1;
+ fd->arguments_var_idx = -1;
+ fd->arguments_arg_idx = -1;
+ fd->func_var_idx = -1;
+ fd->eval_ret_idx = -1;
+ fd->this_var_idx = -1;
+ fd->new_target_var_idx = -1;
+ fd->this_active_func_var_idx = -1;
+ fd->home_object_var_idx = -1;
+
+ /* XXX: should distinguish arg, var and var object and body scopes */
+ fd->scopes = fd->def_scope_array;
+ fd->scope_size = countof(fd->def_scope_array);
+ fd->scope_count = 1;
+ fd->scopes[0].first = -1;
+ fd->scopes[0].parent = -1;
+ fd->scope_level = 0; /* 0: var/arg scope */
+ fd->scope_first = -1;
+ fd->body_scope = -1;
+
+ fd->filename = JS_NewAtom(ctx, filename);
+ fd->line_num = line_num;
+
+ js_dbuf_init(ctx, &fd->pc2line);
+ //fd->pc2line_last_line_num = line_num;
+ //fd->pc2line_last_pc = 0;
+ fd->last_opcode_line_num = line_num;
+
+ return fd;
+}
+
+static void free_bytecode_atoms(JSRuntime *rt,
+ const uint8_t *bc_buf, int bc_len,
+ BOOL use_short_opcodes)
+{
+ int pos, len, op;
+ JSAtom atom;
+ const JSOpCode *oi;
+
+ pos = 0;
+ while (pos < bc_len) {
+ op = bc_buf[pos];
+ if (use_short_opcodes)
+ oi = &short_opcode_info(op);
+ else
+ oi = &opcode_info[op];
+
+ len = oi->size;
+ switch(oi->fmt) {
+ case OP_FMT_atom:
+ case OP_FMT_atom_u8:
+ case OP_FMT_atom_u16:
+ case OP_FMT_atom_label_u8:
+ case OP_FMT_atom_label_u16:
+ atom = get_u32(bc_buf + pos + 1);
+ JS_FreeAtomRT(rt, atom);
+ break;
+ default:
+ break;
+ }
+ pos += len;
+ }
+}
+
+static void js_free_function_def(JSContext *ctx, JSFunctionDef *fd)
+{
+ int i;
+ struct list_head *el, *el1;
+
+ /* free the child functions */
+ list_for_each_safe(el, el1, &fd->child_list) {
+ JSFunctionDef *fd1;
+ fd1 = list_entry(el, JSFunctionDef, link);
+ js_free_function_def(ctx, fd1);
+ }
+
+ free_bytecode_atoms(ctx->rt, fd->byte_code.buf, fd->byte_code.size,
+ fd->use_short_opcodes);
+ dbuf_free(&fd->byte_code);
+ js_free(ctx, fd->jump_slots);
+ js_free(ctx, fd->label_slots);
+ js_free(ctx, fd->line_number_slots);
+
+ for(i = 0; i < fd->cpool_count; i++) {
+ JS_FreeValue(ctx, fd->cpool[i]);
+ }
+ js_free(ctx, fd->cpool);
+
+ JS_FreeAtom(ctx, fd->func_name);
+
+ for(i = 0; i < fd->var_count; i++) {
+ JS_FreeAtom(ctx, fd->vars[i].var_name);
+ }
+ js_free(ctx, fd->vars);
+ for(i = 0; i < fd->arg_count; i++) {
+ JS_FreeAtom(ctx, fd->args[i].var_name);
+ }
+ js_free(ctx, fd->args);
+
+ for(i = 0; i < fd->global_var_count; i++) {
+ JS_FreeAtom(ctx, fd->global_vars[i].var_name);
+ }
+ js_free(ctx, fd->global_vars);
+
+ for(i = 0; i < fd->closure_var_count; i++) {
+ JSClosureVar *cv = &fd->closure_var[i];
+ JS_FreeAtom(ctx, cv->var_name);
+ }
+ js_free(ctx, fd->closure_var);
+
+ if (fd->scopes != fd->def_scope_array)
+ js_free(ctx, fd->scopes);
+
+ JS_FreeAtom(ctx, fd->filename);
+ dbuf_free(&fd->pc2line);
+
+ js_free(ctx, fd->source);
+
+ if (fd->parent) {
+ /* remove in parent list */
+ list_del(&fd->link);
+ }
+ js_free(ctx, fd);
+}
+
+#ifdef DUMP_BYTECODE
+static const char *skip_lines(const char *p, int n) {
+ while (n-- > 0 && *p) {
+ while (*p && *p++ != '\n')
+ continue;
+ }
+ return p;
+}
+
+static void print_lines(const char *source, int line, int line1) {
+ const char *s = source;
+ const char *p = skip_lines(s, line);
+ if (*p) {
+ while (line++ < line1) {
+ p = skip_lines(s = p, 1);
+ printf(";; %.*s", (int)(p - s), s);
+ if (!*p) {
+ if (p[-1] != '\n')
+ printf("\n");
+ break;
+ }
+ }
+ }
+}
+
+static void dump_byte_code(JSContext *ctx, int pass,
+ const uint8_t *tab, int len,
+ const JSVarDef *args, int arg_count,
+ const JSVarDef *vars, int var_count,
+ const JSClosureVar *closure_var, int closure_var_count,
+ const JSValue *cpool, uint32_t cpool_count,
+ const char *source, int line_num,
+ const LabelSlot *label_slots, JSFunctionBytecode *b)
+{
+ const JSOpCode *oi;
+ int pos, pos_next, op, size, idx, addr, line, line1, in_source;
+ uint8_t *bits = js_mallocz(ctx, len * sizeof(*bits));
+ BOOL use_short_opcodes = (b != NULL);
+
+ /* scan for jump targets */
+ for (pos = 0; pos < len; pos = pos_next) {
+ op = tab[pos];
+ if (use_short_opcodes)
+ oi = &short_opcode_info(op);
+ else
+ oi = &opcode_info[op];
+ pos_next = pos + oi->size;
+ if (op < OP_COUNT) {
+ switch (oi->fmt) {
+#if SHORT_OPCODES
+ case OP_FMT_label8:
+ pos++;
+ addr = (int8_t)tab[pos];
+ goto has_addr;
+ case OP_FMT_label16:
+ pos++;
+ addr = (int16_t)get_u16(tab + pos);
+ goto has_addr;
+#endif
+ case OP_FMT_atom_label_u8:
+ case OP_FMT_atom_label_u16:
+ pos += 4;
+ /* fall thru */
+ case OP_FMT_label:
+ case OP_FMT_label_u16:
+ pos++;
+ addr = get_u32(tab + pos);
+ goto has_addr;
+ has_addr:
+ if (pass == 1)
+ addr = label_slots[addr].pos;
+ if (pass == 2)
+ addr = label_slots[addr].pos2;
+ if (pass == 3)
+ addr += pos;
+ if (addr >= 0 && addr < len)
+ bits[addr] |= 1;
+ break;
+ }
+ }
+ }
+ in_source = 0;
+ if (source) {
+ /* Always print first line: needed if single line */
+ print_lines(source, 0, 1);
+ in_source = 1;
+ }
+ line1 = line = 1;
+ pos = 0;
+ while (pos < len) {
+ op = tab[pos];
+ if (source) {
+ if (b) {
+ line1 = find_line_num(ctx, b, pos) - line_num + 1;
+ } else if (op == OP_line_num) {
+ line1 = get_u32(tab + pos + 1) - line_num + 1;
+ }
+ if (line1 > line) {
+ if (!in_source)
+ printf("\n");
+ in_source = 1;
+ print_lines(source, line, line1);
+ line = line1;
+ //bits[pos] |= 2;
+ }
+ }
+ if (in_source)
+ printf("\n");
+ in_source = 0;
+ if (op >= OP_COUNT) {
+ printf("invalid opcode (0x%02x)\n", op);
+ pos++;
+ continue;
+ }
+ if (use_short_opcodes)
+ oi = &short_opcode_info(op);
+ else
+ oi = &opcode_info[op];
+ size = oi->size;
+ if (pos + size > len) {
+ printf("truncated opcode (0x%02x)\n", op);
+ break;
+ }
+#if defined(DUMP_BYTECODE) && (DUMP_BYTECODE & 16)
+ {
+ int i, x, x0;
+ x = x0 = printf("%5d ", pos);
+ for (i = 0; i < size; i++) {
+ if (i == 6) {
+ printf("\n%*s", x = x0, "");
+ }
+ x += printf(" %02X", tab[pos + i]);
+ }
+ printf("%*s", x0 + 20 - x, "");
+ }
+#endif
+ if (bits[pos]) {
+ printf("%5d: ", pos);
+ } else {
+ printf(" ");
+ }
+ printf("%s", oi->name);
+ pos++;
+ switch(oi->fmt) {
+ case OP_FMT_none_int:
+ printf(" %d", op - OP_push_0);
+ break;
+ case OP_FMT_npopx:
+ printf(" %d", op - OP_call0);
+ break;
+ case OP_FMT_u8:
+ printf(" %u", get_u8(tab + pos));
+ break;
+ case OP_FMT_i8:
+ printf(" %d", get_i8(tab + pos));
+ break;
+ case OP_FMT_u16:
+ case OP_FMT_npop:
+ printf(" %u", get_u16(tab + pos));
+ break;
+ case OP_FMT_npop_u16:
+ printf(" %u,%u", get_u16(tab + pos), get_u16(tab + pos + 2));
+ break;
+ case OP_FMT_i16:
+ printf(" %d", get_i16(tab + pos));
+ break;
+ case OP_FMT_i32:
+ printf(" %d", get_i32(tab + pos));
+ break;
+ case OP_FMT_u32:
+ printf(" %u", get_u32(tab + pos));
+ break;
+#if SHORT_OPCODES
+ case OP_FMT_label8:
+ addr = get_i8(tab + pos);
+ goto has_addr1;
+ case OP_FMT_label16:
+ addr = get_i16(tab + pos);
+ goto has_addr1;
+#endif
+ case OP_FMT_label:
+ addr = get_u32(tab + pos);
+ goto has_addr1;
+ has_addr1:
+ if (pass == 1)
+ printf(" %u:%u", addr, label_slots[addr].pos);
+ if (pass == 2)
+ printf(" %u:%u", addr, label_slots[addr].pos2);
+ if (pass == 3)
+ printf(" %u", addr + pos);
+ break;
+ case OP_FMT_label_u16:
+ addr = get_u32(tab + pos);
+ if (pass == 1)
+ printf(" %u:%u", addr, label_slots[addr].pos);
+ if (pass == 2)
+ printf(" %u:%u", addr, label_slots[addr].pos2);
+ if (pass == 3)
+ printf(" %u", addr + pos);
+ printf(",%u", get_u16(tab + pos + 4));
+ break;
+#if SHORT_OPCODES
+ case OP_FMT_const8:
+ idx = get_u8(tab + pos);
+ goto has_pool_idx;
+#endif
+ case OP_FMT_const:
+ idx = get_u32(tab + pos);
+ goto has_pool_idx;
+ has_pool_idx:
+ printf(" %u: ", idx);
+ if (idx < cpool_count) {
+ JS_DumpValue(ctx, cpool[idx]);
+ }
+ break;
+ case OP_FMT_atom:
+ printf(" ");
+ print_atom(ctx, get_u32(tab + pos));
+ break;
+ case OP_FMT_atom_u8:
+ printf(" ");
+ print_atom(ctx, get_u32(tab + pos));
+ printf(",%d", get_u8(tab + pos + 4));
+ break;
+ case OP_FMT_atom_u16:
+ printf(" ");
+ print_atom(ctx, get_u32(tab + pos));
+ printf(",%d", get_u16(tab + pos + 4));
+ break;
+ case OP_FMT_atom_label_u8:
+ case OP_FMT_atom_label_u16:
+ printf(" ");
+ print_atom(ctx, get_u32(tab + pos));
+ addr = get_u32(tab + pos + 4);
+ if (pass == 1)
+ printf(",%u:%u", addr, label_slots[addr].pos);
+ if (pass == 2)
+ printf(",%u:%u", addr, label_slots[addr].pos2);
+ if (pass == 3)
+ printf(",%u", addr + pos + 4);
+ if (oi->fmt == OP_FMT_atom_label_u8)
+ printf(",%u", get_u8(tab + pos + 8));
+ else
+ printf(",%u", get_u16(tab + pos + 8));
+ break;
+ case OP_FMT_none_loc:
+ idx = (op - OP_get_loc0) % 4;
+ goto has_loc;
+ case OP_FMT_loc8:
+ idx = get_u8(tab + pos);
+ goto has_loc;
+ case OP_FMT_loc:
+ idx = get_u16(tab + pos);
+ has_loc:
+ printf(" %d: ", idx);
+ if (idx < var_count) {
+ print_atom(ctx, vars[idx].var_name);
+ }
+ break;
+ case OP_FMT_none_arg:
+ idx = (op - OP_get_arg0) % 4;
+ goto has_arg;
+ case OP_FMT_arg:
+ idx = get_u16(tab + pos);
+ has_arg:
+ printf(" %d: ", idx);
+ if (idx < arg_count) {
+ print_atom(ctx, args[idx].var_name);
+ }
+ break;
+ case OP_FMT_none_var_ref:
+ idx = (op - OP_get_var_ref0) % 4;
+ goto has_var_ref;
+ case OP_FMT_var_ref:
+ idx = get_u16(tab + pos);
+ has_var_ref:
+ printf(" %d: ", idx);
+ if (idx < closure_var_count) {
+ print_atom(ctx, closure_var[idx].var_name);
+ }
+ break;
+ default:
+ break;
+ }
+ printf("\n");
+ pos += oi->size - 1;
+ }
+ if (source) {
+ if (!in_source)
+ printf("\n");
+ print_lines(source, line, INT32_MAX);
+ }
+ js_free(ctx, bits);
+}
+
+static __maybe_unused void dump_pc2line(JSContext *ctx, const uint8_t *buf, int len,
+ int line_num)
+{
+ const uint8_t *p_end, *p_next, *p;
+ int pc, v;
+ unsigned int op;
+
+ if (len <= 0)
+ return;
+
+ printf("%5s %5s\n", "PC", "LINE");
+
+ p = buf;
+ p_end = buf + len;
+ pc = 0;
+ while (p < p_end) {
+ op = *p++;
+ if (op == 0) {
+ v = unicode_from_utf8(p, p_end - p, &p_next);
+ if (v < 0)
+ goto fail;
+ pc += v;
+ p = p_next;
+ v = unicode_from_utf8(p, p_end - p, &p_next);
+ if (v < 0) {
+ fail:
+ printf("invalid pc2line encode pos=%d\n", (int)(p - buf));
+ return;
+ }
+ if (!(v & 1)) {
+ v = v >> 1;
+ } else {
+ v = -(v >> 1) - 1;
+ }
+ line_num += v;
+ p = p_next;
+ } else {
+ op -= PC2LINE_OP_FIRST;
+ pc += (op / PC2LINE_RANGE);
+ line_num += (op % PC2LINE_RANGE) + PC2LINE_BASE;
+ }
+ printf("%5d %5d\n", pc, line_num);
+ }
+}
+
+static __maybe_unused void js_dump_function_bytecode(JSContext *ctx, JSFunctionBytecode *b)
+{
+ int i;
+ char atom_buf[ATOM_GET_STR_BUF_SIZE];
+ const char *str;
+
+ if (b->has_debug && b->debug.filename != JS_ATOM_NULL) {
+ str = JS_AtomGetStr(ctx, atom_buf, sizeof(atom_buf), b->debug.filename);
+ printf("%s:%d: ", str, b->debug.line_num);
+ }
+
+ str = JS_AtomGetStr(ctx, atom_buf, sizeof(atom_buf), b->func_name);
+ printf("function: %s%s\n", &"*"[b->func_kind != JS_FUNC_GENERATOR], str);
+ if (b->js_mode) {
+ printf(" mode:");
+ if (b->js_mode & JS_MODE_STRICT)
+ printf(" strict");
+#ifdef CONFIG_BIGNUM
+ if (b->js_mode & JS_MODE_MATH)
+ printf(" math");
+#endif
+ printf("\n");
+ }
+ if (b->arg_count && b->vardefs) {
+ printf(" args:");
+ for(i = 0; i < b->arg_count; i++) {
+ printf(" %s", JS_AtomGetStr(ctx, atom_buf, sizeof(atom_buf),
+ b->vardefs[i].var_name));
+ }
+ printf("\n");
+ }
+ if (b->var_count && b->vardefs) {
+ printf(" locals:\n");
+ for(i = 0; i < b->var_count; i++) {
+ JSVarDef *vd = &b->vardefs[b->arg_count + i];
+ printf("%5d: %s %s", i,
+ vd->var_kind == JS_VAR_CATCH ? "catch" :
+ (vd->var_kind == JS_VAR_FUNCTION_DECL ||
+ vd->var_kind == JS_VAR_NEW_FUNCTION_DECL) ? "function" :
+ vd->is_const ? "const" :
+ vd->is_lexical ? "let" : "var",
+ JS_AtomGetStr(ctx, atom_buf, sizeof(atom_buf), vd->var_name));
+ if (vd->scope_level)
+ printf(" [level:%d next:%d]", vd->scope_level, vd->scope_next);
+ printf("\n");
+ }
+ }
+ if (b->closure_var_count) {
+ printf(" closure vars:\n");
+ for(i = 0; i < b->closure_var_count; i++) {
+ JSClosureVar *cv = &b->closure_var[i];
+ printf("%5d: %s %s:%s%d %s\n", i,
+ JS_AtomGetStr(ctx, atom_buf, sizeof(atom_buf), cv->var_name),
+ cv->is_local ? "local" : "parent",
+ cv->is_arg ? "arg" : "loc", cv->var_idx,
+ cv->is_const ? "const" :
+ cv->is_lexical ? "let" : "var");
+ }
+ }
+ printf(" stack_size: %d\n", b->stack_size);
+ printf(" opcodes:\n");
+ dump_byte_code(ctx, 3, b->byte_code_buf, b->byte_code_len,
+ b->vardefs, b->arg_count,
+ b->vardefs ? b->vardefs + b->arg_count : NULL, b->var_count,
+ b->closure_var, b->closure_var_count,
+ b->cpool, b->cpool_count,
+ b->has_debug ? b->debug.source : NULL,
+ b->has_debug ? b->debug.line_num : -1, NULL, b);
+#if defined(DUMP_BYTECODE) && (DUMP_BYTECODE & 32)
+ if (b->has_debug)
+ dump_pc2line(ctx, b->debug.pc2line_buf, b->debug.pc2line_len, b->debug.line_num);
+#endif
+ printf("\n");
+}
+#endif
+
+static int add_closure_var(JSContext *ctx, JSFunctionDef *s,
+ BOOL is_local, BOOL is_arg,
+ int var_idx, JSAtom var_name,
+ BOOL is_const, BOOL is_lexical,
+ JSVarKindEnum var_kind)
+{
+ JSClosureVar *cv;
+
+ /* the closure variable indexes are currently stored on 16 bits */
+ if (s->closure_var_count >= JS_MAX_LOCAL_VARS) {
+ JS_ThrowInternalError(ctx, "too many closure variables");
+ return -1;
+ }
+
+ if (js_resize_array(ctx, (void **)&s->closure_var,
+ sizeof(s->closure_var[0]),
+ &s->closure_var_size, s->closure_var_count + 1))
+ return -1;
+ cv = &s->closure_var[s->closure_var_count++];
+ cv->is_local = is_local;
+ cv->is_arg = is_arg;
+ cv->is_const = is_const;
+ cv->is_lexical = is_lexical;
+ cv->var_kind = var_kind;
+ cv->var_idx = var_idx;
+ cv->var_name = JS_DupAtom(ctx, var_name);
+ return s->closure_var_count - 1;
+}
+
+static int find_closure_var(JSContext *ctx, JSFunctionDef *s,
+ JSAtom var_name)
+{
+ int i;
+ for(i = 0; i < s->closure_var_count; i++) {
+ JSClosureVar *cv = &s->closure_var[i];
+ if (cv->var_name == var_name)
+ return i;
+ }
+ return -1;
+}
+
+/* 'fd' must be a parent of 's'. Create in 's' a closure referencing a
+ local variable (is_local = TRUE) or a closure (is_local = FALSE) in
+ 'fd' */
+static int get_closure_var2(JSContext *ctx, JSFunctionDef *s,
+ JSFunctionDef *fd, BOOL is_local,
+ BOOL is_arg, int var_idx, JSAtom var_name,
+ BOOL is_const, BOOL is_lexical,
+ JSVarKindEnum var_kind)
+{
+ int i;
+
+ if (fd != s->parent) {
+ var_idx = get_closure_var2(ctx, s->parent, fd, is_local,
+ is_arg, var_idx, var_name,
+ is_const, is_lexical, var_kind);
+ if (var_idx < 0)
+ return -1;
+ is_local = FALSE;
+ }
+ for(i = 0; i < s->closure_var_count; i++) {
+ JSClosureVar *cv = &s->closure_var[i];
+ if (cv->var_idx == var_idx && cv->is_arg == is_arg &&
+ cv->is_local == is_local)
+ return i;
+ }
+ return add_closure_var(ctx, s, is_local, is_arg, var_idx, var_name,
+ is_const, is_lexical, var_kind);
+}
+
+static int get_closure_var(JSContext *ctx, JSFunctionDef *s,
+ JSFunctionDef *fd, BOOL is_arg,
+ int var_idx, JSAtom var_name,
+ BOOL is_const, BOOL is_lexical,
+ JSVarKindEnum var_kind)
+{
+ return get_closure_var2(ctx, s, fd, TRUE, is_arg,
+ var_idx, var_name, is_const, is_lexical,
+ var_kind);
+}
+
+static int get_with_scope_opcode(int op)
+{
+ if (op == OP_scope_get_var_undef)
+ return OP_with_get_var;
+ else
+ return OP_with_get_var + (op - OP_scope_get_var);
+}
+
+static BOOL can_opt_put_ref_value(const uint8_t *bc_buf, int pos)
+{
+ int opcode = bc_buf[pos];
+ return (bc_buf[pos + 1] == OP_put_ref_value &&
+ (opcode == OP_insert3 ||
+ opcode == OP_perm4 ||
+ opcode == OP_nop ||
+ opcode == OP_rot3l));
+}
+
+static BOOL can_opt_put_global_ref_value(const uint8_t *bc_buf, int pos)
+{
+ int opcode = bc_buf[pos];
+ return (bc_buf[pos + 1] == OP_put_ref_value &&
+ (opcode == OP_insert3 ||
+ opcode == OP_perm4 ||
+ opcode == OP_nop ||
+ opcode == OP_rot3l));
+}
+
+static int optimize_scope_make_ref(JSContext *ctx, JSFunctionDef *s,
+ DynBuf *bc, uint8_t *bc_buf,
+ LabelSlot *ls, int pos_next,
+ int get_op, int var_idx)
+{
+ int label_pos, end_pos, pos;
+
+ /* XXX: should optimize `loc(a) += expr` as `expr add_loc(a)`
+ but only if expr does not modify `a`.
+ should scan the code between pos_next and label_pos
+ for operations that can potentially change `a`:
+ OP_scope_make_ref(a), function calls, jumps and gosub.
+ */
+ /* replace the reference get/put with normal variable
+ accesses */
+ if (bc_buf[pos_next] == OP_get_ref_value) {
+ dbuf_putc(bc, get_op);
+ dbuf_put_u16(bc, var_idx);
+ pos_next++;
+ }
+ /* remove the OP_label to make room for replacement */
+ /* label should have a refcount of 0 anyway */
+ /* XXX: should avoid this patch by inserting nops in phase 1 */
+ label_pos = ls->pos;
+ pos = label_pos - 5;
+ assert(bc_buf[pos] == OP_label);
+ /* label points to an instruction pair:
+ - insert3 / put_ref_value
+ - perm4 / put_ref_value
+ - rot3l / put_ref_value
+ - nop / put_ref_value
+ */
+ end_pos = label_pos + 2;
+ if (bc_buf[label_pos] == OP_insert3)
+ bc_buf[pos++] = OP_dup;
+ bc_buf[pos] = get_op + 1;
+ put_u16(bc_buf + pos + 1, var_idx);
+ pos += 3;
+ /* pad with OP_nop */
+ while (pos < end_pos)
+ bc_buf[pos++] = OP_nop;
+ return pos_next;
+}
+
+static int optimize_scope_make_global_ref(JSContext *ctx, JSFunctionDef *s,
+ DynBuf *bc, uint8_t *bc_buf,
+ LabelSlot *ls, int pos_next,
+ JSAtom var_name)
+{
+ int label_pos, end_pos, pos, op;
+ BOOL is_strict;
+ is_strict = ((s->js_mode & JS_MODE_STRICT) != 0);
+
+ /* replace the reference get/put with normal variable
+ accesses */
+ if (is_strict) {
+ /* need to check if the variable exists before evaluating the right
+ expression */
+ /* XXX: need an extra OP_true if destructuring an array */
+ dbuf_putc(bc, OP_check_var);
+ dbuf_put_u32(bc, JS_DupAtom(ctx, var_name));
+ } else {
+ /* XXX: need 2 extra OP_true if destructuring an array */
+ }
+ if (bc_buf[pos_next] == OP_get_ref_value) {
+ dbuf_putc(bc, OP_get_var);
+ dbuf_put_u32(bc, JS_DupAtom(ctx, var_name));
+ pos_next++;
+ }
+ /* remove the OP_label to make room for replacement */
+ /* label should have a refcount of 0 anyway */
+ /* XXX: should have emitted several OP_nop to avoid this kludge */
+ label_pos = ls->pos;
+ pos = label_pos - 5;
+ assert(bc_buf[pos] == OP_label);
+ end_pos = label_pos + 2;
+ op = bc_buf[label_pos];
+ if (is_strict) {
+ if (op != OP_nop) {
+ switch(op) {
+ case OP_insert3:
+ op = OP_insert2;
+ break;
+ case OP_perm4:
+ op = OP_perm3;
+ break;
+ case OP_rot3l:
+ op = OP_swap;
+ break;
+ default:
+ abort();
+ }
+ bc_buf[pos++] = op;
+ }
+ } else {
+ if (op == OP_insert3)
+ bc_buf[pos++] = OP_dup;
+ }
+ if (is_strict) {
+ bc_buf[pos] = OP_put_var_strict;
+ /* XXX: need 1 extra OP_drop if destructuring an array */
+ } else {
+ bc_buf[pos] = OP_put_var;
+ /* XXX: need 2 extra OP_drop if destructuring an array */
+ }
+ put_u32(bc_buf + pos + 1, JS_DupAtom(ctx, var_name));
+ pos += 5;
+ /* pad with OP_nop */
+ while (pos < end_pos)
+ bc_buf[pos++] = OP_nop;
+ return pos_next;
+}
+
+static int add_var_this(JSContext *ctx, JSFunctionDef *fd)
+{
+ int idx;
+ idx = add_var(ctx, fd, JS_ATOM_this);
+ if (idx >= 0 && fd->is_derived_class_constructor) {
+ JSVarDef *vd = &fd->vars[idx];
+ /* XXX: should have is_this flag or var type */
+ vd->is_lexical = 1; /* used to trigger 'uninitialized' checks
+ in a derived class constructor */
+ }
+ return idx;
+}
+
+static int resolve_pseudo_var(JSContext *ctx, JSFunctionDef *s,
+ JSAtom var_name)
+{
+ int var_idx;
+
+ if (!s->has_this_binding)
+ return -1;
+ switch(var_name) {
+ case JS_ATOM_home_object:
+ /* 'home_object' pseudo variable */
+ if (s->home_object_var_idx < 0)
+ s->home_object_var_idx = add_var(ctx, s, var_name);
+ var_idx = s->home_object_var_idx;
+ break;
+ case JS_ATOM_this_active_func:
+ /* 'this.active_func' pseudo variable */
+ if (s->this_active_func_var_idx < 0)
+ s->this_active_func_var_idx = add_var(ctx, s, var_name);
+ var_idx = s->this_active_func_var_idx;
+ break;
+ case JS_ATOM_new_target:
+ /* 'new.target' pseudo variable */
+ if (s->new_target_var_idx < 0)
+ s->new_target_var_idx = add_var(ctx, s, var_name);
+ var_idx = s->new_target_var_idx;
+ break;
+ case JS_ATOM_this:
+ /* 'this' pseudo variable */
+ if (s->this_var_idx < 0)
+ s->this_var_idx = add_var_this(ctx, s);
+ var_idx = s->this_var_idx;
+ break;
+ default:
+ var_idx = -1;
+ break;
+ }
+ return var_idx;
+}
+
+/* test if 'var_name' is in the variable object on the stack. If is it
+ the case, handle it and jump to 'label_done' */
+static void var_object_test(JSContext *ctx, JSFunctionDef *s,
+ JSAtom var_name, int op, DynBuf *bc,
+ int *plabel_done, BOOL is_with)
+{
+ dbuf_putc(bc, get_with_scope_opcode(op));
+ dbuf_put_u32(bc, JS_DupAtom(ctx, var_name));
+ *plabel_done = new_label_fd(s, *plabel_done);
+ dbuf_put_u32(bc, *plabel_done);
+ dbuf_putc(bc, is_with);
+ update_label(s, *plabel_done, 1);
+ s->jump_size++;
+}
+
+/* return the position of the next opcode */
+static int resolve_scope_var(JSContext *ctx, JSFunctionDef *s,
+ JSAtom var_name, int scope_level, int op,
+ DynBuf *bc, uint8_t *bc_buf,
+ LabelSlot *ls, int pos_next)
+{
+ int idx, var_idx, is_put;
+ int label_done;
+ JSFunctionDef *fd;
+ JSVarDef *vd;
+ BOOL is_pseudo_var, is_arg_scope;
+
+ label_done = -1;
+
+ /* XXX: could be simpler to use a specific function to
+ resolve the pseudo variables */
+ is_pseudo_var = (var_name == JS_ATOM_home_object ||
+ var_name == JS_ATOM_this_active_func ||
+ var_name == JS_ATOM_new_target ||
+ var_name == JS_ATOM_this);
+
+ /* resolve local scoped variables */
+ var_idx = -1;
+ for (idx = s->scopes[scope_level].first; idx >= 0;) {
+ vd = &s->vars[idx];
+ if (vd->var_name == var_name) {
+ if (op == OP_scope_put_var || op == OP_scope_make_ref) {
+ if (vd->is_const) {
+ dbuf_putc(bc, OP_throw_error);
+ dbuf_put_u32(bc, JS_DupAtom(ctx, var_name));
+ dbuf_putc(bc, JS_THROW_VAR_RO);
+ goto done;
+ }
+ }
+ var_idx = idx;
+ break;
+ } else
+ if (vd->var_name == JS_ATOM__with_ && !is_pseudo_var) {
+ dbuf_putc(bc, OP_get_loc);
+ dbuf_put_u16(bc, idx);
+ var_object_test(ctx, s, var_name, op, bc, &label_done, 1);
+ }
+ idx = vd->scope_next;
+ }
+ is_arg_scope = (idx == ARG_SCOPE_END);
+ if (var_idx < 0) {
+ /* argument scope: variables are not visible but pseudo
+ variables are visible */
+ if (!is_arg_scope) {
+ var_idx = find_var(ctx, s, var_name);
+ }
+
+ if (var_idx < 0 && is_pseudo_var)
+ var_idx = resolve_pseudo_var(ctx, s, var_name);
+
+ if (var_idx < 0 && var_name == JS_ATOM_arguments &&
+ s->has_arguments_binding) {
+ /* 'arguments' pseudo variable */
+ var_idx = add_arguments_var(ctx, s);
+ }
+ if (var_idx < 0 && s->is_func_expr && var_name == s->func_name) {
+ /* add a new variable with the function name */
+ var_idx = add_func_var(ctx, s, var_name);
+ }
+ }
+ if (var_idx >= 0) {
+ if ((op == OP_scope_put_var || op == OP_scope_make_ref) &&
+ !(var_idx & ARGUMENT_VAR_OFFSET) &&
+ s->vars[var_idx].is_const) {
+ /* only happens when assigning a function expression name
+ in strict mode */
+ dbuf_putc(bc, OP_throw_error);
+ dbuf_put_u32(bc, JS_DupAtom(ctx, var_name));
+ dbuf_putc(bc, JS_THROW_VAR_RO);
+ goto done;
+ }
+ /* OP_scope_put_var_init is only used to initialize a
+ lexical variable, so it is never used in a with or var object. It
+ can be used with a closure (module global variable case). */
+ switch (op) {
+ case OP_scope_make_ref:
+ if (!(var_idx & ARGUMENT_VAR_OFFSET) &&
+ s->vars[var_idx].var_kind == JS_VAR_FUNCTION_NAME) {
+ /* Create a dummy object reference for the func_var */
+ dbuf_putc(bc, OP_object);
+ dbuf_putc(bc, OP_get_loc);
+ dbuf_put_u16(bc, var_idx);
+ dbuf_putc(bc, OP_define_field);
+ dbuf_put_u32(bc, JS_DupAtom(ctx, var_name));
+ dbuf_putc(bc, OP_push_atom_value);
+ dbuf_put_u32(bc, JS_DupAtom(ctx, var_name));
+ } else
+ if (label_done == -1 && can_opt_put_ref_value(bc_buf, ls->pos)) {
+ int get_op;
+ if (var_idx & ARGUMENT_VAR_OFFSET) {
+ get_op = OP_get_arg;
+ var_idx -= ARGUMENT_VAR_OFFSET;
+ } else {
+ if (s->vars[var_idx].is_lexical)
+ get_op = OP_get_loc_check;
+ else
+ get_op = OP_get_loc;
+ }
+ pos_next = optimize_scope_make_ref(ctx, s, bc, bc_buf, ls,
+ pos_next, get_op, var_idx);
+ } else {
+ /* Create a dummy object with a named slot that is
+ a reference to the local variable */
+ if (var_idx & ARGUMENT_VAR_OFFSET) {
+ dbuf_putc(bc, OP_make_arg_ref);
+ dbuf_put_u32(bc, JS_DupAtom(ctx, var_name));
+ dbuf_put_u16(bc, var_idx - ARGUMENT_VAR_OFFSET);
+ } else {
+ dbuf_putc(bc, OP_make_loc_ref);
+ dbuf_put_u32(bc, JS_DupAtom(ctx, var_name));
+ dbuf_put_u16(bc, var_idx);
+ }
+ }
+ break;
+ case OP_scope_get_ref:
+ dbuf_putc(bc, OP_undefined);
+ /* fall thru */
+ case OP_scope_get_var_checkthis:
+ case OP_scope_get_var_undef:
+ case OP_scope_get_var:
+ case OP_scope_put_var:
+ case OP_scope_put_var_init:
+ is_put = (op == OP_scope_put_var || op == OP_scope_put_var_init);
+ if (var_idx & ARGUMENT_VAR_OFFSET) {
+ dbuf_putc(bc, OP_get_arg + is_put);
+ dbuf_put_u16(bc, var_idx - ARGUMENT_VAR_OFFSET);
+ } else {
+ if (is_put) {
+ if (s->vars[var_idx].is_lexical) {
+ if (op == OP_scope_put_var_init) {
+ /* 'this' can only be initialized once */
+ if (var_name == JS_ATOM_this)
+ dbuf_putc(bc, OP_put_loc_check_init);
+ else
+ dbuf_putc(bc, OP_put_loc);
+ } else {
+ dbuf_putc(bc, OP_put_loc_check);
+ }
+ } else {
+ dbuf_putc(bc, OP_put_loc);
+ }
+ } else {
+ if (s->vars[var_idx].is_lexical) {
+ if (op == OP_scope_get_var_checkthis) {
+ /* only used for 'this' return in derived class constructors */
+ dbuf_putc(bc, OP_get_loc_checkthis);
+ } else {
+ dbuf_putc(bc, OP_get_loc_check);
+ }
+ } else {
+ dbuf_putc(bc, OP_get_loc);
+ }
+ }
+ dbuf_put_u16(bc, var_idx);
+ }
+ break;
+ case OP_scope_delete_var:
+ dbuf_putc(bc, OP_push_false);
+ break;
+ }
+ goto done;
+ }
+ /* check eval object */
+ if (!is_arg_scope && s->var_object_idx >= 0 && !is_pseudo_var) {
+ dbuf_putc(bc, OP_get_loc);
+ dbuf_put_u16(bc, s->var_object_idx);
+ var_object_test(ctx, s, var_name, op, bc, &label_done, 0);
+ }
+ /* check eval object in argument scope */
+ if (s->arg_var_object_idx >= 0 && !is_pseudo_var) {
+ dbuf_putc(bc, OP_get_loc);
+ dbuf_put_u16(bc, s->arg_var_object_idx);
+ var_object_test(ctx, s, var_name, op, bc, &label_done, 0);
+ }
+
+ /* check parent scopes */
+ for (fd = s; fd->parent;) {
+ scope_level = fd->parent_scope_level;
+ fd = fd->parent;
+ for (idx = fd->scopes[scope_level].first; idx >= 0;) {
+ vd = &fd->vars[idx];
+ if (vd->var_name == var_name) {
+ if (op == OP_scope_put_var || op == OP_scope_make_ref) {
+ if (vd->is_const) {
+ dbuf_putc(bc, OP_throw_error);
+ dbuf_put_u32(bc, JS_DupAtom(ctx, var_name));
+ dbuf_putc(bc, JS_THROW_VAR_RO);
+ goto done;
+ }
+ }
+ var_idx = idx;
+ break;
+ } else if (vd->var_name == JS_ATOM__with_ && !is_pseudo_var) {
+ vd->is_captured = 1;
+ idx = get_closure_var(ctx, s, fd, FALSE, idx, vd->var_name, FALSE, FALSE, JS_VAR_NORMAL);
+ if (idx >= 0) {
+ dbuf_putc(bc, OP_get_var_ref);
+ dbuf_put_u16(bc, idx);
+ var_object_test(ctx, s, var_name, op, bc, &label_done, 1);
+ }
+ }
+ idx = vd->scope_next;
+ }
+ is_arg_scope = (idx == ARG_SCOPE_END);
+ if (var_idx >= 0)
+ break;
+
+ if (!is_arg_scope) {
+ var_idx = find_var(ctx, fd, var_name);
+ if (var_idx >= 0)
+ break;
+ }
+ if (is_pseudo_var) {
+ var_idx = resolve_pseudo_var(ctx, fd, var_name);
+ if (var_idx >= 0)
+ break;
+ }
+ if (var_name == JS_ATOM_arguments && fd->has_arguments_binding) {
+ var_idx = add_arguments_var(ctx, fd);
+ break;
+ }
+ if (fd->is_func_expr && fd->func_name == var_name) {
+ /* add a new variable with the function name */
+ var_idx = add_func_var(ctx, fd, var_name);
+ break;
+ }
+
+ /* check eval object */
+ if (!is_arg_scope && fd->var_object_idx >= 0 && !is_pseudo_var) {
+ vd = &fd->vars[fd->var_object_idx];
+ vd->is_captured = 1;
+ idx = get_closure_var(ctx, s, fd, FALSE,
+ fd->var_object_idx, vd->var_name,
+ FALSE, FALSE, JS_VAR_NORMAL);
+ dbuf_putc(bc, OP_get_var_ref);
+ dbuf_put_u16(bc, idx);
+ var_object_test(ctx, s, var_name, op, bc, &label_done, 0);
+ }
+
+ /* check eval object in argument scope */
+ if (fd->arg_var_object_idx >= 0 && !is_pseudo_var) {
+ vd = &fd->vars[fd->arg_var_object_idx];
+ vd->is_captured = 1;
+ idx = get_closure_var(ctx, s, fd, FALSE,
+ fd->arg_var_object_idx, vd->var_name,
+ FALSE, FALSE, JS_VAR_NORMAL);
+ dbuf_putc(bc, OP_get_var_ref);
+ dbuf_put_u16(bc, idx);
+ var_object_test(ctx, s, var_name, op, bc, &label_done, 0);
+ }
+
+ if (fd->is_eval)
+ break; /* it it necessarily the top level function */
+ }
+
+ /* check direct eval scope (in the closure of the eval function
+ which is necessarily at the top level) */
+ if (!fd)
+ fd = s;
+ if (var_idx < 0 && fd->is_eval) {
+ int idx1;
+ for (idx1 = 0; idx1 < fd->closure_var_count; idx1++) {
+ JSClosureVar *cv = &fd->closure_var[idx1];
+ if (var_name == cv->var_name) {
+ if (fd != s) {
+ idx = get_closure_var2(ctx, s, fd,
+ FALSE,
+ cv->is_arg, idx1,
+ cv->var_name, cv->is_const,
+ cv->is_lexical, cv->var_kind);
+ } else {
+ idx = idx1;
+ }
+ goto has_idx;
+ } else if ((cv->var_name == JS_ATOM__var_ ||
+ cv->var_name == JS_ATOM__arg_var_ ||
+ cv->var_name == JS_ATOM__with_) && !is_pseudo_var) {
+ int is_with = (cv->var_name == JS_ATOM__with_);
+ if (fd != s) {
+ idx = get_closure_var2(ctx, s, fd,
+ FALSE,
+ cv->is_arg, idx1,
+ cv->var_name, FALSE, FALSE,
+ JS_VAR_NORMAL);
+ } else {
+ idx = idx1;
+ }
+ dbuf_putc(bc, OP_get_var_ref);
+ dbuf_put_u16(bc, idx);
+ var_object_test(ctx, s, var_name, op, bc, &label_done, is_with);
+ }
+ }
+ }
+
+ if (var_idx >= 0) {
+ /* find the corresponding closure variable */
+ if (var_idx & ARGUMENT_VAR_OFFSET) {
+ fd->args[var_idx - ARGUMENT_VAR_OFFSET].is_captured = 1;
+ idx = get_closure_var(ctx, s, fd,
+ TRUE, var_idx - ARGUMENT_VAR_OFFSET,
+ var_name, FALSE, FALSE, JS_VAR_NORMAL);
+ } else {
+ fd->vars[var_idx].is_captured = 1;
+ idx = get_closure_var(ctx, s, fd,
+ FALSE, var_idx,
+ var_name,
+ fd->vars[var_idx].is_const,
+ fd->vars[var_idx].is_lexical,
+ fd->vars[var_idx].var_kind);
+ }
+ if (idx >= 0) {
+ has_idx:
+ if ((op == OP_scope_put_var || op == OP_scope_make_ref) &&
+ s->closure_var[idx].is_const) {
+ dbuf_putc(bc, OP_throw_error);
+ dbuf_put_u32(bc, JS_DupAtom(ctx, var_name));
+ dbuf_putc(bc, JS_THROW_VAR_RO);
+ goto done;
+ }
+ switch (op) {
+ case OP_scope_make_ref:
+ if (s->closure_var[idx].var_kind == JS_VAR_FUNCTION_NAME) {
+ /* Create a dummy object reference for the func_var */
+ dbuf_putc(bc, OP_object);
+ dbuf_putc(bc, OP_get_var_ref);
+ dbuf_put_u16(bc, idx);
+ dbuf_putc(bc, OP_define_field);
+ dbuf_put_u32(bc, JS_DupAtom(ctx, var_name));
+ dbuf_putc(bc, OP_push_atom_value);
+ dbuf_put_u32(bc, JS_DupAtom(ctx, var_name));
+ } else
+ if (label_done == -1 &&
+ can_opt_put_ref_value(bc_buf, ls->pos)) {
+ int get_op;
+ if (s->closure_var[idx].is_lexical)
+ get_op = OP_get_var_ref_check;
+ else
+ get_op = OP_get_var_ref;
+ pos_next = optimize_scope_make_ref(ctx, s, bc, bc_buf, ls,
+ pos_next,
+ get_op, idx);
+ } else {
+ /* Create a dummy object with a named slot that is
+ a reference to the closure variable */
+ dbuf_putc(bc, OP_make_var_ref_ref);
+ dbuf_put_u32(bc, JS_DupAtom(ctx, var_name));
+ dbuf_put_u16(bc, idx);
+ }
+ break;
+ case OP_scope_get_ref:
+ /* XXX: should create a dummy object with a named slot that is
+ a reference to the closure variable */
+ dbuf_putc(bc, OP_undefined);
+ /* fall thru */
+ case OP_scope_get_var_undef:
+ case OP_scope_get_var:
+ case OP_scope_put_var:
+ case OP_scope_put_var_init:
+ is_put = (op == OP_scope_put_var ||
+ op == OP_scope_put_var_init);
+ if (is_put) {
+ if (s->closure_var[idx].is_lexical) {
+ if (op == OP_scope_put_var_init) {
+ /* 'this' can only be initialized once */
+ if (var_name == JS_ATOM_this)
+ dbuf_putc(bc, OP_put_var_ref_check_init);
+ else
+ dbuf_putc(bc, OP_put_var_ref);
+ } else {
+ dbuf_putc(bc, OP_put_var_ref_check);
+ }
+ } else {
+ dbuf_putc(bc, OP_put_var_ref);
+ }
+ } else {
+ if (s->closure_var[idx].is_lexical) {
+ dbuf_putc(bc, OP_get_var_ref_check);
+ } else {
+ dbuf_putc(bc, OP_get_var_ref);
+ }
+ }
+ dbuf_put_u16(bc, idx);
+ break;
+ case OP_scope_delete_var:
+ dbuf_putc(bc, OP_push_false);
+ break;
+ }
+ goto done;
+ }
+ }
+
+ /* global variable access */
+
+ switch (op) {
+ case OP_scope_make_ref:
+ if (label_done == -1 && can_opt_put_global_ref_value(bc_buf, ls->pos)) {
+ pos_next = optimize_scope_make_global_ref(ctx, s, bc, bc_buf, ls,
+ pos_next, var_name);
+ } else {
+ dbuf_putc(bc, OP_make_var_ref);
+ dbuf_put_u32(bc, JS_DupAtom(ctx, var_name));
+ }
+ break;
+ case OP_scope_get_ref:
+ /* XXX: should create a dummy object with a named slot that is
+ a reference to the global variable */
+ dbuf_putc(bc, OP_undefined);
+ dbuf_putc(bc, OP_get_var);
+ dbuf_put_u32(bc, JS_DupAtom(ctx, var_name));
+ break;
+ case OP_scope_get_var_undef:
+ case OP_scope_get_var:
+ case OP_scope_put_var:
+ dbuf_putc(bc, OP_get_var_undef + (op - OP_scope_get_var_undef));
+ dbuf_put_u32(bc, JS_DupAtom(ctx, var_name));
+ break;
+ case OP_scope_put_var_init:
+ dbuf_putc(bc, OP_put_var_init);
+ dbuf_put_u32(bc, JS_DupAtom(ctx, var_name));
+ break;
+ case OP_scope_delete_var:
+ dbuf_putc(bc, OP_delete_var);
+ dbuf_put_u32(bc, JS_DupAtom(ctx, var_name));
+ break;
+ }
+done:
+ if (label_done >= 0) {
+ dbuf_putc(bc, OP_label);
+ dbuf_put_u32(bc, label_done);
+ s->label_slots[label_done].pos2 = bc->size;
+ }
+ return pos_next;
+}
+
+/* search in all scopes */
+static int find_private_class_field_all(JSContext *ctx, JSFunctionDef *fd,
+ JSAtom name, int scope_level)
+{
+ int idx;
+
+ idx = fd->scopes[scope_level].first;
+ while (idx >= 0) {
+ if (fd->vars[idx].var_name == name)
+ return idx;
+ idx = fd->vars[idx].scope_next;
+ }
+ return -1;
+}
+
+static void get_loc_or_ref(DynBuf *bc, BOOL is_ref, int idx)
+{
+ /* if the field is not initialized, the error is catched when
+ accessing it */
+ if (is_ref)
+ dbuf_putc(bc, OP_get_var_ref);
+ else
+ dbuf_putc(bc, OP_get_loc);
+ dbuf_put_u16(bc, idx);
+}
+
+static int resolve_scope_private_field1(JSContext *ctx,
+ BOOL *pis_ref, int *pvar_kind,
+ JSFunctionDef *s,
+ JSAtom var_name, int scope_level)
+{
+ int idx, var_kind;
+ JSFunctionDef *fd;
+ BOOL is_ref;
+
+ fd = s;
+ is_ref = FALSE;
+ for(;;) {
+ idx = find_private_class_field_all(ctx, fd, var_name, scope_level);
+ if (idx >= 0) {
+ var_kind = fd->vars[idx].var_kind;
+ if (is_ref) {
+ idx = get_closure_var(ctx, s, fd, FALSE, idx, var_name,
+ TRUE, TRUE, JS_VAR_NORMAL);
+ if (idx < 0)
+ return -1;
+ }
+ break;
+ }
+ scope_level = fd->parent_scope_level;
+ if (!fd->parent) {
+ if (fd->is_eval) {
+ /* closure of the eval function (top level) */
+ for (idx = 0; idx < fd->closure_var_count; idx++) {
+ JSClosureVar *cv = &fd->closure_var[idx];
+ if (cv->var_name == var_name) {
+ var_kind = cv->var_kind;
+ is_ref = TRUE;
+ if (fd != s) {
+ idx = get_closure_var2(ctx, s, fd,
+ FALSE,
+ cv->is_arg, idx,
+ cv->var_name, cv->is_const,
+ cv->is_lexical,
+ cv->var_kind);
+ if (idx < 0)
+ return -1;
+ }
+ goto done;
+ }
+ }
+ }
+ /* XXX: no line number info */
+ JS_ThrowSyntaxErrorAtom(ctx, "undefined private field '%s'",
+ var_name);
+ return -1;
+ } else {
+ fd = fd->parent;
+ }
+ is_ref = TRUE;
+ }
+ done:
+ *pis_ref = is_ref;
+ *pvar_kind = var_kind;
+ return idx;
+}
+
+/* return 0 if OK or -1 if the private field could not be resolved */
+static int resolve_scope_private_field(JSContext *ctx, JSFunctionDef *s,
+ JSAtom var_name, int scope_level, int op,
+ DynBuf *bc)
+{
+ int idx, var_kind;
+ BOOL is_ref;
+
+ idx = resolve_scope_private_field1(ctx, &is_ref, &var_kind, s,
+ var_name, scope_level);
+ if (idx < 0)
+ return -1;
+ assert(var_kind != JS_VAR_NORMAL);
+ switch (op) {
+ case OP_scope_get_private_field:
+ case OP_scope_get_private_field2:
+ switch(var_kind) {
+ case JS_VAR_PRIVATE_FIELD:
+ if (op == OP_scope_get_private_field2)
+ dbuf_putc(bc, OP_dup);
+ get_loc_or_ref(bc, is_ref, idx);
+ dbuf_putc(bc, OP_get_private_field);
+ break;
+ case JS_VAR_PRIVATE_METHOD:
+ get_loc_or_ref(bc, is_ref, idx);
+ dbuf_putc(bc, OP_check_brand);
+ if (op != OP_scope_get_private_field2)
+ dbuf_putc(bc, OP_nip);
+ break;
+ case JS_VAR_PRIVATE_GETTER:
+ case JS_VAR_PRIVATE_GETTER_SETTER:
+ if (op == OP_scope_get_private_field2)
+ dbuf_putc(bc, OP_dup);
+ get_loc_or_ref(bc, is_ref, idx);
+ dbuf_putc(bc, OP_check_brand);
+ dbuf_putc(bc, OP_call_method);
+ dbuf_put_u16(bc, 0);
+ break;
+ case JS_VAR_PRIVATE_SETTER:
+ /* XXX: add clearer error message */
+ dbuf_putc(bc, OP_throw_error);
+ dbuf_put_u32(bc, JS_DupAtom(ctx, var_name));
+ dbuf_putc(bc, JS_THROW_VAR_RO);
+ break;
+ default:
+ abort();
+ }
+ break;
+ case OP_scope_put_private_field:
+ switch(var_kind) {
+ case JS_VAR_PRIVATE_FIELD:
+ get_loc_or_ref(bc, is_ref, idx);
+ dbuf_putc(bc, OP_put_private_field);
+ break;
+ case JS_VAR_PRIVATE_METHOD:
+ case JS_VAR_PRIVATE_GETTER:
+ /* XXX: add clearer error message */
+ dbuf_putc(bc, OP_throw_error);
+ dbuf_put_u32(bc, JS_DupAtom(ctx, var_name));
+ dbuf_putc(bc, JS_THROW_VAR_RO);
+ break;
+ case JS_VAR_PRIVATE_SETTER:
+ case JS_VAR_PRIVATE_GETTER_SETTER:
+ {
+ JSAtom setter_name = get_private_setter_name(ctx, var_name);
+ if (setter_name == JS_ATOM_NULL)
+ return -1;
+ idx = resolve_scope_private_field1(ctx, &is_ref,
+ &var_kind, s,
+ setter_name, scope_level);
+ JS_FreeAtom(ctx, setter_name);
+ if (idx < 0)
+ return -1;
+ assert(var_kind == JS_VAR_PRIVATE_SETTER);
+ get_loc_or_ref(bc, is_ref, idx);
+ dbuf_putc(bc, OP_swap);
+ /* obj func value */
+ dbuf_putc(bc, OP_rot3r);
+ /* value obj func */
+ dbuf_putc(bc, OP_check_brand);
+ dbuf_putc(bc, OP_rot3l);
+ /* obj func value */
+ dbuf_putc(bc, OP_call_method);
+ dbuf_put_u16(bc, 1);
+ dbuf_putc(bc, OP_drop);
+ }
+ break;
+ default:
+ abort();
+ }
+ break;
+ case OP_scope_in_private_field:
+ get_loc_or_ref(bc, is_ref, idx);
+ dbuf_putc(bc, OP_private_in);
+ break;
+ default:
+ abort();
+ }
+ return 0;
+}
+
+static void mark_eval_captured_variables(JSContext *ctx, JSFunctionDef *s,
+ int scope_level)
+{
+ int idx;
+ JSVarDef *vd;
+
+ for (idx = s->scopes[scope_level].first; idx >= 0;) {
+ vd = &s->vars[idx];
+ vd->is_captured = 1;
+ idx = vd->scope_next;
+ }
+}
+
+/* XXX: should handle the argument scope generically */
+static BOOL is_var_in_arg_scope(const JSVarDef *vd)
+{
+ return (vd->var_name == JS_ATOM_home_object ||
+ vd->var_name == JS_ATOM_this_active_func ||
+ vd->var_name == JS_ATOM_new_target ||
+ vd->var_name == JS_ATOM_this ||
+ vd->var_name == JS_ATOM__arg_var_ ||
+ vd->var_kind == JS_VAR_FUNCTION_NAME);
+}
+
+static void add_eval_variables(JSContext *ctx, JSFunctionDef *s)
+{
+ JSFunctionDef *fd;
+ JSVarDef *vd;
+ int i, scope_level, scope_idx;
+ BOOL has_arguments_binding, has_this_binding, is_arg_scope;
+
+ /* in non strict mode, variables are created in the caller's
+ environment object */
+ if (!s->is_eval && !(s->js_mode & JS_MODE_STRICT)) {
+ s->var_object_idx = add_var(ctx, s, JS_ATOM__var_);
+ if (s->has_parameter_expressions) {
+ /* an additional variable object is needed for the
+ argument scope */
+ s->arg_var_object_idx = add_var(ctx, s, JS_ATOM__arg_var_);
+ }
+ }
+
+ /* eval can potentially use 'arguments' so we must define it */
+ has_this_binding = s->has_this_binding;
+ if (has_this_binding) {
+ if (s->this_var_idx < 0)
+ s->this_var_idx = add_var_this(ctx, s);
+ if (s->new_target_var_idx < 0)
+ s->new_target_var_idx = add_var(ctx, s, JS_ATOM_new_target);
+ if (s->is_derived_class_constructor && s->this_active_func_var_idx < 0)
+ s->this_active_func_var_idx = add_var(ctx, s, JS_ATOM_this_active_func);
+ if (s->has_home_object && s->home_object_var_idx < 0)
+ s->home_object_var_idx = add_var(ctx, s, JS_ATOM_home_object);
+ }
+ has_arguments_binding = s->has_arguments_binding;
+ if (has_arguments_binding) {
+ add_arguments_var(ctx, s);
+ /* also add an arguments binding in the argument scope to
+ raise an error if a direct eval in the argument scope tries
+ to redefine it */
+ if (s->has_parameter_expressions && !(s->js_mode & JS_MODE_STRICT))
+ add_arguments_arg(ctx, s);
+ }
+ if (s->is_func_expr && s->func_name != JS_ATOM_NULL)
+ add_func_var(ctx, s, s->func_name);
+
+ /* eval can use all the variables of the enclosing functions, so
+ they must be all put in the closure. The closure variables are
+ ordered by scope. It works only because no closure are created
+ before. */
+ assert(s->is_eval || s->closure_var_count == 0);
+
+ /* XXX: inefficient, but eval performance is less critical */
+ fd = s;
+ for(;;) {
+ scope_level = fd->parent_scope_level;
+ fd = fd->parent;
+ if (!fd)
+ break;
+ /* add 'this' if it was not previously added */
+ if (!has_this_binding && fd->has_this_binding) {
+ if (fd->this_var_idx < 0)
+ fd->this_var_idx = add_var_this(ctx, fd);
+ if (fd->new_target_var_idx < 0)
+ fd->new_target_var_idx = add_var(ctx, fd, JS_ATOM_new_target);
+ if (fd->is_derived_class_constructor && fd->this_active_func_var_idx < 0)
+ fd->this_active_func_var_idx = add_var(ctx, fd, JS_ATOM_this_active_func);
+ if (fd->has_home_object && fd->home_object_var_idx < 0)
+ fd->home_object_var_idx = add_var(ctx, fd, JS_ATOM_home_object);
+ has_this_binding = TRUE;
+ }
+ /* add 'arguments' if it was not previously added */
+ if (!has_arguments_binding && fd->has_arguments_binding) {
+ add_arguments_var(ctx, fd);
+ has_arguments_binding = TRUE;
+ }
+ /* add function name */
+ if (fd->is_func_expr && fd->func_name != JS_ATOM_NULL)
+ add_func_var(ctx, fd, fd->func_name);
+
+ /* add lexical variables */
+ scope_idx = fd->scopes[scope_level].first;
+ while (scope_idx >= 0) {
+ vd = &fd->vars[scope_idx];
+ vd->is_captured = 1;
+ get_closure_var(ctx, s, fd, FALSE, scope_idx,
+ vd->var_name, vd->is_const, vd->is_lexical, vd->var_kind);
+ scope_idx = vd->scope_next;
+ }
+ is_arg_scope = (scope_idx == ARG_SCOPE_END);
+ if (!is_arg_scope) {
+ /* add unscoped variables */
+ /* XXX: propagate is_const and var_kind too ? */
+ for(i = 0; i < fd->arg_count; i++) {
+ vd = &fd->args[i];
+ if (vd->var_name != JS_ATOM_NULL) {
+ get_closure_var(ctx, s, fd,
+ TRUE, i, vd->var_name, FALSE,
+ vd->is_lexical, JS_VAR_NORMAL);
+ }
+ }
+ for(i = 0; i < fd->var_count; i++) {
+ vd = &fd->vars[i];
+ /* do not close top level last result */
+ if (vd->scope_level == 0 &&
+ vd->var_name != JS_ATOM__ret_ &&
+ vd->var_name != JS_ATOM_NULL) {
+ get_closure_var(ctx, s, fd,
+ FALSE, i, vd->var_name, FALSE,
+ vd->is_lexical, JS_VAR_NORMAL);
+ }
+ }
+ } else {
+ for(i = 0; i < fd->var_count; i++) {
+ vd = &fd->vars[i];
+ /* do not close top level last result */
+ if (vd->scope_level == 0 && is_var_in_arg_scope(vd)) {
+ get_closure_var(ctx, s, fd,
+ FALSE, i, vd->var_name, FALSE,
+ vd->is_lexical, JS_VAR_NORMAL);
+ }
+ }
+ }
+ if (fd->is_eval) {
+ int idx;
+ /* add direct eval variables (we are necessarily at the
+ top level) */
+ for (idx = 0; idx < fd->closure_var_count; idx++) {
+ JSClosureVar *cv = &fd->closure_var[idx];
+ get_closure_var2(ctx, s, fd,
+ FALSE, cv->is_arg,
+ idx, cv->var_name, cv->is_const,
+ cv->is_lexical, cv->var_kind);
+ }
+ }
+ }
+}
+
+static void set_closure_from_var(JSContext *ctx, JSClosureVar *cv,
+ JSVarDef *vd, int var_idx)
+{
+ cv->is_local = TRUE;
+ cv->is_arg = FALSE;
+ cv->is_const = vd->is_const;
+ cv->is_lexical = vd->is_lexical;
+ cv->var_kind = vd->var_kind;
+ cv->var_idx = var_idx;
+ cv->var_name = JS_DupAtom(ctx, vd->var_name);
+}
+
+/* for direct eval compilation: add references to the variables of the
+ calling function */
+static __exception int add_closure_variables(JSContext *ctx, JSFunctionDef *s,
+ JSFunctionBytecode *b, int scope_idx)
+{
+ int i, count;
+ JSVarDef *vd;
+ BOOL is_arg_scope;
+
+ count = b->arg_count + b->var_count + b->closure_var_count;
+ s->closure_var = NULL;
+ s->closure_var_count = 0;
+ s->closure_var_size = count;
+ if (count == 0)
+ return 0;
+ s->closure_var = js_malloc(ctx, sizeof(s->closure_var[0]) * count);
+ if (!s->closure_var)
+ return -1;
+ /* Add lexical variables in scope at the point of evaluation */
+ for (i = scope_idx; i >= 0;) {
+ vd = &b->vardefs[b->arg_count + i];
+ if (vd->scope_level > 0) {
+ JSClosureVar *cv = &s->closure_var[s->closure_var_count++];
+ set_closure_from_var(ctx, cv, vd, i);
+ }
+ i = vd->scope_next;
+ }
+ is_arg_scope = (i == ARG_SCOPE_END);
+ if (!is_arg_scope) {
+ /* Add argument variables */
+ for(i = 0; i < b->arg_count; i++) {
+ JSClosureVar *cv = &s->closure_var[s->closure_var_count++];
+ vd = &b->vardefs[i];
+ cv->is_local = TRUE;
+ cv->is_arg = TRUE;
+ cv->is_const = FALSE;
+ cv->is_lexical = FALSE;
+ cv->var_kind = JS_VAR_NORMAL;
+ cv->var_idx = i;
+ cv->var_name = JS_DupAtom(ctx, vd->var_name);
+ }
+ /* Add local non lexical variables */
+ for(i = 0; i < b->var_count; i++) {
+ vd = &b->vardefs[b->arg_count + i];
+ if (vd->scope_level == 0 && vd->var_name != JS_ATOM__ret_) {
+ JSClosureVar *cv = &s->closure_var[s->closure_var_count++];
+ set_closure_from_var(ctx, cv, vd, i);
+ }
+ }
+ } else {
+ /* only add pseudo variables */
+ for(i = 0; i < b->var_count; i++) {
+ vd = &b->vardefs[b->arg_count + i];
+ if (vd->scope_level == 0 && is_var_in_arg_scope(vd)) {
+ JSClosureVar *cv = &s->closure_var[s->closure_var_count++];
+ set_closure_from_var(ctx, cv, vd, i);
+ }
+ }
+ }
+ for(i = 0; i < b->closure_var_count; i++) {
+ JSClosureVar *cv0 = &b->closure_var[i];
+ JSClosureVar *cv = &s->closure_var[s->closure_var_count++];
+ cv->is_local = FALSE;
+ cv->is_arg = cv0->is_arg;
+ cv->is_const = cv0->is_const;
+ cv->is_lexical = cv0->is_lexical;
+ cv->var_kind = cv0->var_kind;
+ cv->var_idx = i;
+ cv->var_name = JS_DupAtom(ctx, cv0->var_name);
+ }
+ return 0;
+}
+
+typedef struct CodeContext {
+ const uint8_t *bc_buf; /* code buffer */
+ int bc_len; /* length of the code buffer */
+ int pos; /* position past the matched code pattern */
+ int line_num; /* last visited OP_line_num parameter or -1 */
+ int op;
+ int idx;
+ int label;
+ int val;
+ JSAtom atom;
+} CodeContext;
+
+#define M2(op1, op2) ((op1) | ((op2) << 8))
+#define M3(op1, op2, op3) ((op1) | ((op2) << 8) | ((op3) << 16))
+#define M4(op1, op2, op3, op4) ((op1) | ((op2) << 8) | ((op3) << 16) | ((op4) << 24))
+
+static BOOL code_match(CodeContext *s, int pos, ...)
+{
+ const uint8_t *tab = s->bc_buf;
+ int op, len, op1, line_num, pos_next;
+ va_list ap;
+ BOOL ret = FALSE;
+
+ line_num = -1;
+ va_start(ap, pos);
+
+ for(;;) {
+ op1 = va_arg(ap, int);
+ if (op1 == -1) {
+ s->pos = pos;
+ s->line_num = line_num;
+ ret = TRUE;
+ break;
+ }
+ for (;;) {
+ if (pos >= s->bc_len)
+ goto done;
+ op = tab[pos];
+ len = opcode_info[op].size;
+ pos_next = pos + len;
+ if (pos_next > s->bc_len)
+ goto done;
+ if (op == OP_line_num) {
+ line_num = get_u32(tab + pos + 1);
+ pos = pos_next;
+ } else {
+ break;
+ }
+ }
+ if (op != op1) {
+ if (op1 == (uint8_t)op1 || !op)
+ break;
+ if (op != (uint8_t)op1
+ && op != (uint8_t)(op1 >> 8)
+ && op != (uint8_t)(op1 >> 16)
+ && op != (uint8_t)(op1 >> 24)) {
+ break;
+ }
+ s->op = op;
+ }
+
+ pos++;
+ switch(opcode_info[op].fmt) {
+ case OP_FMT_loc8:
+ case OP_FMT_u8:
+ {
+ int idx = tab[pos];
+ int arg = va_arg(ap, int);
+ if (arg == -1) {
+ s->idx = idx;
+ } else {
+ if (arg != idx)
+ goto done;
+ }
+ break;
+ }
+ case OP_FMT_u16:
+ case OP_FMT_npop:
+ case OP_FMT_loc:
+ case OP_FMT_arg:
+ case OP_FMT_var_ref:
+ {
+ int idx = get_u16(tab + pos);
+ int arg = va_arg(ap, int);
+ if (arg == -1) {
+ s->idx = idx;
+ } else {
+ if (arg != idx)
+ goto done;
+ }
+ break;
+ }
+ case OP_FMT_i32:
+ case OP_FMT_u32:
+ case OP_FMT_label:
+ case OP_FMT_const:
+ {
+ s->label = get_u32(tab + pos);
+ break;
+ }
+ case OP_FMT_label_u16:
+ {
+ s->label = get_u32(tab + pos);
+ s->val = get_u16(tab + pos + 4);
+ break;
+ }
+ case OP_FMT_atom:
+ {
+ s->atom = get_u32(tab + pos);
+ break;
+ }
+ case OP_FMT_atom_u8:
+ {
+ s->atom = get_u32(tab + pos);
+ s->val = get_u8(tab + pos + 4);
+ break;
+ }
+ case OP_FMT_atom_u16:
+ {
+ s->atom = get_u32(tab + pos);
+ s->val = get_u16(tab + pos + 4);
+ break;
+ }
+ case OP_FMT_atom_label_u8:
+ {
+ s->atom = get_u32(tab + pos);
+ s->label = get_u32(tab + pos + 4);
+ s->val = get_u8(tab + pos + 8);
+ break;
+ }
+ default:
+ break;
+ }
+ pos = pos_next;
+ }
+ done:
+ va_end(ap);
+ return ret;
+}
+
+static void instantiate_hoisted_definitions(JSContext *ctx, JSFunctionDef *s, DynBuf *bc)
+{
+ int i, idx, label_next = -1;
+
+ /* add the hoisted functions in arguments and local variables */
+ for(i = 0; i < s->arg_count; i++) {
+ JSVarDef *vd = &s->args[i];
+ if (vd->func_pool_idx >= 0) {
+ dbuf_putc(bc, OP_fclosure);
+ dbuf_put_u32(bc, vd->func_pool_idx);
+ dbuf_putc(bc, OP_put_arg);
+ dbuf_put_u16(bc, i);
+ }
+ }
+ for(i = 0; i < s->var_count; i++) {
+ JSVarDef *vd = &s->vars[i];
+ if (vd->scope_level == 0 && vd->func_pool_idx >= 0) {
+ dbuf_putc(bc, OP_fclosure);
+ dbuf_put_u32(bc, vd->func_pool_idx);
+ dbuf_putc(bc, OP_put_loc);
+ dbuf_put_u16(bc, i);
+ }
+ }
+
+ /* the module global variables must be initialized before
+ evaluating the module so that the exported functions are
+ visible if there are cyclic module references */
+ if (s->module) {
+ label_next = new_label_fd(s, -1);
+
+ /* if 'this' is true, initialize the global variables and return */
+ dbuf_putc(bc, OP_push_this);
+ dbuf_putc(bc, OP_if_false);
+ dbuf_put_u32(bc, label_next);
+ update_label(s, label_next, 1);
+ s->jump_size++;
+ }
+
+ /* add the global variables (only happens if s->is_global_var is
+ true) */
+ for(i = 0; i < s->global_var_count; i++) {
+ JSGlobalVar *hf = &s->global_vars[i];
+ int has_closure = 0;
+ BOOL force_init = hf->force_init;
+ /* we are in an eval, so the closure contains all the
+ enclosing variables */
+ /* If the outer function has a variable environment,
+ create a property for the variable there */
+ for(idx = 0; idx < s->closure_var_count; idx++) {
+ JSClosureVar *cv = &s->closure_var[idx];
+ if (cv->var_name == hf->var_name) {
+ has_closure = 2;
+ force_init = FALSE;
+ break;
+ }
+ if (cv->var_name == JS_ATOM__var_ ||
+ cv->var_name == JS_ATOM__arg_var_) {
+ dbuf_putc(bc, OP_get_var_ref);
+ dbuf_put_u16(bc, idx);
+ has_closure = 1;
+ force_init = TRUE;
+ break;
+ }
+ }
+ if (!has_closure) {
+ int flags;
+
+ flags = 0;
+ if (s->eval_type != JS_EVAL_TYPE_GLOBAL)
+ flags |= JS_PROP_CONFIGURABLE;
+ if (hf->cpool_idx >= 0 && !hf->is_lexical) {
+ /* global function definitions need a specific handling */
+ dbuf_putc(bc, OP_fclosure);
+ dbuf_put_u32(bc, hf->cpool_idx);
+
+ dbuf_putc(bc, OP_define_func);
+ dbuf_put_u32(bc, JS_DupAtom(ctx, hf->var_name));
+ dbuf_putc(bc, flags);
+
+ goto done_global_var;
+ } else {
+ if (hf->is_lexical) {
+ flags |= DEFINE_GLOBAL_LEX_VAR;
+ if (!hf->is_const)
+ flags |= JS_PROP_WRITABLE;
+ }
+ dbuf_putc(bc, OP_define_var);
+ dbuf_put_u32(bc, JS_DupAtom(ctx, hf->var_name));
+ dbuf_putc(bc, flags);
+ }
+ }
+ if (hf->cpool_idx >= 0 || force_init) {
+ if (hf->cpool_idx >= 0) {
+ dbuf_putc(bc, OP_fclosure);
+ dbuf_put_u32(bc, hf->cpool_idx);
+ if (hf->var_name == JS_ATOM__default_) {
+ /* set default export function name */
+ dbuf_putc(bc, OP_set_name);
+ dbuf_put_u32(bc, JS_DupAtom(ctx, JS_ATOM_default));
+ }
+ } else {
+ dbuf_putc(bc, OP_undefined);
+ }
+ if (has_closure == 2) {
+ dbuf_putc(bc, OP_put_var_ref);
+ dbuf_put_u16(bc, idx);
+ } else if (has_closure == 1) {
+ dbuf_putc(bc, OP_define_field);
+ dbuf_put_u32(bc, JS_DupAtom(ctx, hf->var_name));
+ dbuf_putc(bc, OP_drop);
+ } else {
+ /* XXX: Check if variable is writable and enumerable */
+ dbuf_putc(bc, OP_put_var);
+ dbuf_put_u32(bc, JS_DupAtom(ctx, hf->var_name));
+ }
+ }
+ done_global_var:
+ JS_FreeAtom(ctx, hf->var_name);
+ }
+
+ if (s->module) {
+ dbuf_putc(bc, OP_return_undef);
+
+ dbuf_putc(bc, OP_label);
+ dbuf_put_u32(bc, label_next);
+ s->label_slots[label_next].pos2 = bc->size;
+ }
+
+ js_free(ctx, s->global_vars);
+ s->global_vars = NULL;
+ s->global_var_count = 0;
+ s->global_var_size = 0;
+}
+
+static int skip_dead_code(JSFunctionDef *s, const uint8_t *bc_buf, int bc_len,
+ int pos, int *linep)
+{
+ int op, len, label;
+
+ for (; pos < bc_len; pos += len) {
+ op = bc_buf[pos];
+ len = opcode_info[op].size;
+ if (op == OP_line_num) {
+ *linep = get_u32(bc_buf + pos + 1);
+ } else
+ if (op == OP_label) {
+ label = get_u32(bc_buf + pos + 1);
+ if (update_label(s, label, 0) > 0)
+ break;
+#if 0
+ if (s->label_slots[label].first_reloc) {
+ printf("line %d: unreferenced label %d:%d has relocations\n",
+ *linep, label, s->label_slots[label].pos2);
+ }
+#endif
+ assert(s->label_slots[label].first_reloc == NULL);
+ } else {
+ /* XXX: output a warning for unreachable code? */
+ JSAtom atom;
+ switch(opcode_info[op].fmt) {
+ case OP_FMT_label:
+ case OP_FMT_label_u16:
+ label = get_u32(bc_buf + pos + 1);
+ update_label(s, label, -1);
+ break;
+ case OP_FMT_atom_label_u8:
+ case OP_FMT_atom_label_u16:
+ label = get_u32(bc_buf + pos + 5);
+ update_label(s, label, -1);
+ /* fall thru */
+ case OP_FMT_atom:
+ case OP_FMT_atom_u8:
+ case OP_FMT_atom_u16:
+ atom = get_u32(bc_buf + pos + 1);
+ JS_FreeAtom(s->ctx, atom);
+ break;
+ default:
+ break;
+ }
+ }
+ }
+ return pos;
+}
+
+static int get_label_pos(JSFunctionDef *s, int label)
+{
+ int i, pos;
+ for (i = 0; i < 20; i++) {
+ pos = s->label_slots[label].pos;
+ for (;;) {
+ switch (s->byte_code.buf[pos]) {
+ case OP_line_num:
+ case OP_label:
+ pos += 5;
+ continue;
+ case OP_goto:
+ label = get_u32(s->byte_code.buf + pos + 1);
+ break;
+ default:
+ return pos;
+ }
+ break;
+ }
+ }
+ return pos;
+}
+
+/* convert global variable accesses to local variables or closure
+ variables when necessary */
+static __exception int resolve_variables(JSContext *ctx, JSFunctionDef *s)
+{
+ int pos, pos_next, bc_len, op, len, i, idx, line_num;
+ uint8_t *bc_buf;
+ JSAtom var_name;
+ DynBuf bc_out;
+ CodeContext cc;
+ int scope;
+
+ cc.bc_buf = bc_buf = s->byte_code.buf;
+ cc.bc_len = bc_len = s->byte_code.size;
+ js_dbuf_init(ctx, &bc_out);
+
+ /* first pass for runtime checks (must be done before the
+ variables are created) */
+ for(i = 0; i < s->global_var_count; i++) {
+ JSGlobalVar *hf = &s->global_vars[i];
+ int flags;
+
+ /* check if global variable (XXX: simplify) */
+ for(idx = 0; idx < s->closure_var_count; idx++) {
+ JSClosureVar *cv = &s->closure_var[idx];
+ if (cv->var_name == hf->var_name) {
+ if (s->eval_type == JS_EVAL_TYPE_DIRECT &&
+ cv->is_lexical) {
+ /* Check if a lexical variable is
+ redefined as 'var'. XXX: Could abort
+ compilation here, but for consistency
+ with the other checks, we delay the
+ error generation. */
+ dbuf_putc(&bc_out, OP_throw_error);
+ dbuf_put_u32(&bc_out, JS_DupAtom(ctx, hf->var_name));
+ dbuf_putc(&bc_out, JS_THROW_VAR_REDECL);
+ }
+ goto next;
+ }
+ if (cv->var_name == JS_ATOM__var_ ||
+ cv->var_name == JS_ATOM__arg_var_)
+ goto next;
+ }
+
+ dbuf_putc(&bc_out, OP_check_define_var);
+ dbuf_put_u32(&bc_out, JS_DupAtom(ctx, hf->var_name));
+ flags = 0;
+ if (hf->is_lexical)
+ flags |= DEFINE_GLOBAL_LEX_VAR;
+ if (hf->cpool_idx >= 0)
+ flags |= DEFINE_GLOBAL_FUNC_VAR;
+ dbuf_putc(&bc_out, flags);
+ next: ;
+ }
+
+ line_num = 0; /* avoid warning */
+ for (pos = 0; pos < bc_len; pos = pos_next) {
+ op = bc_buf[pos];
+ len = opcode_info[op].size;
+ pos_next = pos + len;
+ switch(op) {
+ case OP_line_num:
+ line_num = get_u32(bc_buf + pos + 1);
+ s->line_number_size++;
+ goto no_change;
+
+ case OP_eval: /* convert scope index to adjusted variable index */
+ {
+ int call_argc = get_u16(bc_buf + pos + 1);
+ scope = get_u16(bc_buf + pos + 1 + 2);
+ mark_eval_captured_variables(ctx, s, scope);
+ dbuf_putc(&bc_out, op);
+ dbuf_put_u16(&bc_out, call_argc);
+ dbuf_put_u16(&bc_out, s->scopes[scope].first + 1);
+ }
+ break;
+ case OP_apply_eval: /* convert scope index to adjusted variable index */
+ scope = get_u16(bc_buf + pos + 1);
+ mark_eval_captured_variables(ctx, s, scope);
+ dbuf_putc(&bc_out, op);
+ dbuf_put_u16(&bc_out, s->scopes[scope].first + 1);
+ break;
+ case OP_scope_get_var_checkthis:
+ case OP_scope_get_var_undef:
+ case OP_scope_get_var:
+ case OP_scope_put_var:
+ case OP_scope_delete_var:
+ case OP_scope_get_ref:
+ case OP_scope_put_var_init:
+ var_name = get_u32(bc_buf + pos + 1);
+ scope = get_u16(bc_buf + pos + 5);
+ pos_next = resolve_scope_var(ctx, s, var_name, scope, op, &bc_out,
+ NULL, NULL, pos_next);
+ JS_FreeAtom(ctx, var_name);
+ break;
+ case OP_scope_make_ref:
+ {
+ int label;
+ LabelSlot *ls;
+ var_name = get_u32(bc_buf + pos + 1);
+ label = get_u32(bc_buf + pos + 5);
+ scope = get_u16(bc_buf + pos + 9);
+ ls = &s->label_slots[label];
+ ls->ref_count--; /* always remove label reference */
+ pos_next = resolve_scope_var(ctx, s, var_name, scope, op, &bc_out,
+ bc_buf, ls, pos_next);
+ JS_FreeAtom(ctx, var_name);
+ }
+ break;
+ case OP_scope_get_private_field:
+ case OP_scope_get_private_field2:
+ case OP_scope_put_private_field:
+ case OP_scope_in_private_field:
+ {
+ int ret;
+ var_name = get_u32(bc_buf + pos + 1);
+ scope = get_u16(bc_buf + pos + 5);
+ ret = resolve_scope_private_field(ctx, s, var_name, scope, op, &bc_out);
+ if (ret < 0)
+ goto fail;
+ JS_FreeAtom(ctx, var_name);
+ }
+ break;
+ case OP_gosub:
+ s->jump_size++;
+ if (OPTIMIZE) {
+ /* remove calls to empty finalizers */
+ int label;
+ LabelSlot *ls;
+
+ label = get_u32(bc_buf + pos + 1);
+ assert(label >= 0 && label < s->label_count);
+ ls = &s->label_slots[label];
+ if (code_match(&cc, ls->pos, OP_ret, -1)) {
+ ls->ref_count--;
+ break;
+ }
+ }
+ goto no_change;
+ case OP_drop:
+ if (0) {
+ /* remove drops before return_undef */
+ /* do not perform this optimization in pass2 because
+ it breaks patterns recognised in resolve_labels */
+ int pos1 = pos_next;
+ int line1 = line_num;
+ while (code_match(&cc, pos1, OP_drop, -1)) {
+ if (cc.line_num >= 0) line1 = cc.line_num;
+ pos1 = cc.pos;
+ }
+ if (code_match(&cc, pos1, OP_return_undef, -1)) {
+ pos_next = pos1;
+ if (line1 != -1 && line1 != line_num) {
+ line_num = line1;
+ s->line_number_size++;
+ dbuf_putc(&bc_out, OP_line_num);
+ dbuf_put_u32(&bc_out, line_num);
+ }
+ break;
+ }
+ }
+ goto no_change;
+ case OP_insert3:
+ if (OPTIMIZE) {
+ /* Transformation: insert3 put_array_el|put_ref_value drop -> put_array_el|put_ref_value */
+ if (code_match(&cc, pos_next, M2(OP_put_array_el, OP_put_ref_value), OP_drop, -1)) {
+ dbuf_putc(&bc_out, cc.op);
+ pos_next = cc.pos;
+ if (cc.line_num != -1 && cc.line_num != line_num) {
+ line_num = cc.line_num;
+ s->line_number_size++;
+ dbuf_putc(&bc_out, OP_line_num);
+ dbuf_put_u32(&bc_out, line_num);
+ }
+ break;
+ }
+ }
+ goto no_change;
+
+ case OP_goto:
+ s->jump_size++;
+ /* fall thru */
+ case OP_tail_call:
+ case OP_tail_call_method:
+ case OP_return:
+ case OP_return_undef:
+ case OP_throw:
+ case OP_throw_error:
+ case OP_ret:
+ if (OPTIMIZE) {
+ /* remove dead code */
+ int line = -1;
+ dbuf_put(&bc_out, bc_buf + pos, len);
+ pos = skip_dead_code(s, bc_buf, bc_len, pos + len, &line);
+ pos_next = pos;
+ if (pos < bc_len && line >= 0 && line_num != line) {
+ line_num = line;
+ s->line_number_size++;
+ dbuf_putc(&bc_out, OP_line_num);
+ dbuf_put_u32(&bc_out, line_num);
+ }
+ break;
+ }
+ goto no_change;
+
+ case OP_label:
+ {
+ int label;
+ LabelSlot *ls;
+
+ label = get_u32(bc_buf + pos + 1);
+ assert(label >= 0 && label < s->label_count);
+ ls = &s->label_slots[label];
+ ls->pos2 = bc_out.size + opcode_info[op].size;
+ }
+ goto no_change;
+
+ case OP_enter_scope:
+ {
+ int scope_idx, scope = get_u16(bc_buf + pos + 1);
+
+ if (scope == s->body_scope) {
+ instantiate_hoisted_definitions(ctx, s, &bc_out);
+ }
+
+ for(scope_idx = s->scopes[scope].first; scope_idx >= 0;) {
+ JSVarDef *vd = &s->vars[scope_idx];
+ if (vd->scope_level == scope) {
+ if (scope_idx != s->arguments_arg_idx) {
+ if (vd->var_kind == JS_VAR_FUNCTION_DECL ||
+ vd->var_kind == JS_VAR_NEW_FUNCTION_DECL) {
+ /* Initialize lexical variable upon entering scope */
+ dbuf_putc(&bc_out, OP_fclosure);
+ dbuf_put_u32(&bc_out, vd->func_pool_idx);
+ dbuf_putc(&bc_out, OP_put_loc);
+ dbuf_put_u16(&bc_out, scope_idx);
+ } else {
+ /* XXX: should check if variable can be used
+ before initialization */
+ dbuf_putc(&bc_out, OP_set_loc_uninitialized);
+ dbuf_put_u16(&bc_out, scope_idx);
+ }
+ }
+ scope_idx = vd->scope_next;
+ } else {
+ break;
+ }
+ }
+ }
+ break;
+
+ case OP_leave_scope:
+ {
+ int scope_idx, scope = get_u16(bc_buf + pos + 1);
+
+ for(scope_idx = s->scopes[scope].first; scope_idx >= 0;) {
+ JSVarDef *vd = &s->vars[scope_idx];
+ if (vd->scope_level == scope) {
+ if (vd->is_captured) {
+ dbuf_putc(&bc_out, OP_close_loc);
+ dbuf_put_u16(&bc_out, scope_idx);
+ }
+ scope_idx = vd->scope_next;
+ } else {
+ break;
+ }
+ }
+ }
+ break;
+
+ case OP_set_name:
+ {
+ /* remove dummy set_name opcodes */
+ JSAtom name = get_u32(bc_buf + pos + 1);
+ if (name == JS_ATOM_NULL)
+ break;
+ }
+ goto no_change;
+
+ case OP_if_false:
+ case OP_if_true:
+ case OP_catch:
+ s->jump_size++;
+ goto no_change;
+
+ case OP_dup:
+ if (OPTIMIZE) {
+ /* Transformation: dup if_false(l1) drop, l1: if_false(l2) -> if_false(l2) */
+ /* Transformation: dup if_true(l1) drop, l1: if_true(l2) -> if_true(l2) */
+ if (code_match(&cc, pos_next, M2(OP_if_false, OP_if_true), OP_drop, -1)) {
+ int lab0, lab1, op1, pos1, line1, pos2;
+ lab0 = lab1 = cc.label;
+ assert(lab1 >= 0 && lab1 < s->label_count);
+ op1 = cc.op;
+ pos1 = cc.pos;
+ line1 = cc.line_num;
+ while (code_match(&cc, (pos2 = get_label_pos(s, lab1)), OP_dup, op1, OP_drop, -1)) {
+ lab1 = cc.label;
+ }
+ if (code_match(&cc, pos2, op1, -1)) {
+ s->jump_size++;
+ update_label(s, lab0, -1);
+ update_label(s, cc.label, +1);
+ dbuf_putc(&bc_out, op1);
+ dbuf_put_u32(&bc_out, cc.label);
+ pos_next = pos1;
+ if (line1 != -1 && line1 != line_num) {
+ line_num = line1;
+ s->line_number_size++;
+ dbuf_putc(&bc_out, OP_line_num);
+ dbuf_put_u32(&bc_out, line_num);
+ }
+ break;
+ }
+ }
+ }
+ goto no_change;
+
+ case OP_nop:
+ /* remove erased code */
+ break;
+ case OP_set_class_name:
+ /* only used during parsing */
+ break;
+
+ case OP_get_field_opt_chain: /* equivalent to OP_get_field */
+ {
+ JSAtom name = get_u32(bc_buf + pos + 1);
+ dbuf_putc(&bc_out, OP_get_field);
+ dbuf_put_u32(&bc_out, name);
+ }
+ break;
+ case OP_get_array_el_opt_chain: /* equivalent to OP_get_array_el */
+ dbuf_putc(&bc_out, OP_get_array_el);
+ break;
+
+ default:
+ no_change:
+ dbuf_put(&bc_out, bc_buf + pos, len);
+ break;
+ }
+ }
+
+ /* set the new byte code */
+ dbuf_free(&s->byte_code);
+ s->byte_code = bc_out;
+ if (dbuf_error(&s->byte_code)) {
+ JS_ThrowOutOfMemory(ctx);
+ return -1;
+ }
+ return 0;
+ fail:
+ /* continue the copy to keep the atom refcounts consistent */
+ /* XXX: find a better solution ? */
+ for (; pos < bc_len; pos = pos_next) {
+ op = bc_buf[pos];
+ len = opcode_info[op].size;
+ pos_next = pos + len;
+ dbuf_put(&bc_out, bc_buf + pos, len);
+ }
+ dbuf_free(&s->byte_code);
+ s->byte_code = bc_out;
+ return -1;
+}
+
+/* the pc2line table gives a line number for each PC value */
+static void add_pc2line_info(JSFunctionDef *s, uint32_t pc, int line_num)
+{
+ if (s->line_number_slots != NULL
+ && s->line_number_count < s->line_number_size
+ && pc >= s->line_number_last_pc
+ && line_num != s->line_number_last) {
+ s->line_number_slots[s->line_number_count].pc = pc;
+ s->line_number_slots[s->line_number_count].line_num = line_num;
+ s->line_number_count++;
+ s->line_number_last_pc = pc;
+ s->line_number_last = line_num;
+ }
+}
+
+static void compute_pc2line_info(JSFunctionDef *s)
+{
+ if (!(s->js_mode & JS_MODE_STRIP) && s->line_number_slots) {
+ int last_line_num = s->line_num;
+ uint32_t last_pc = 0;
+ int i;
+
+ js_dbuf_init(s->ctx, &s->pc2line);
+ for (i = 0; i < s->line_number_count; i++) {
+ uint32_t pc = s->line_number_slots[i].pc;
+ int line_num = s->line_number_slots[i].line_num;
+ int diff_pc, diff_line;
+
+ if (line_num < 0)
+ continue;
+
+ diff_pc = pc - last_pc;
+ diff_line = line_num - last_line_num;
+ if (diff_line == 0 || diff_pc < 0)
+ continue;
+
+ if (diff_line >= PC2LINE_BASE &&
+ diff_line < PC2LINE_BASE + PC2LINE_RANGE &&
+ diff_pc <= PC2LINE_DIFF_PC_MAX) {
+ dbuf_putc(&s->pc2line, (diff_line - PC2LINE_BASE) +
+ diff_pc * PC2LINE_RANGE + PC2LINE_OP_FIRST);
+ } else {
+ /* longer encoding */
+ dbuf_putc(&s->pc2line, 0);
+ dbuf_put_leb128(&s->pc2line, diff_pc);
+ dbuf_put_sleb128(&s->pc2line, diff_line);
+ }
+ last_pc = pc;
+ last_line_num = line_num;
+ }
+ }
+}
+
+static RelocEntry *add_reloc(JSContext *ctx, LabelSlot *ls, uint32_t addr, int size)
+{
+ RelocEntry *re;
+ re = js_malloc(ctx, sizeof(*re));
+ if (!re)
+ return NULL;
+ re->addr = addr;
+ re->size = size;
+ re->next = ls->first_reloc;
+ ls->first_reloc = re;
+ return re;
+}
+
+static BOOL code_has_label(CodeContext *s, int pos, int label)
+{
+ while (pos < s->bc_len) {
+ int op = s->bc_buf[pos];
+ if (op == OP_line_num) {
+ pos += 5;
+ continue;
+ }
+ if (op == OP_label) {
+ int lab = get_u32(s->bc_buf + pos + 1);
+ if (lab == label)
+ return TRUE;
+ pos += 5;
+ continue;
+ }
+ if (op == OP_goto) {
+ int lab = get_u32(s->bc_buf + pos + 1);
+ if (lab == label)
+ return TRUE;
+ }
+ break;
+ }
+ return FALSE;
+}
+
+/* return the target label, following the OP_goto jumps
+ the first opcode at destination is stored in *pop
+ */
+static int find_jump_target(JSFunctionDef *s, int label, int *pop, int *pline)
+{
+ int i, pos, op;
+
+ update_label(s, label, -1);
+ for (i = 0; i < 10; i++) {
+ assert(label >= 0 && label < s->label_count);
+ pos = s->label_slots[label].pos2;
+ for (;;) {
+ switch(op = s->byte_code.buf[pos]) {
+ case OP_line_num:
+ if (pline)
+ *pline = get_u32(s->byte_code.buf + pos + 1);
+ /* fall thru */
+ case OP_label:
+ pos += opcode_info[op].size;
+ continue;
+ case OP_goto:
+ label = get_u32(s->byte_code.buf + pos + 1);
+ break;
+ case OP_drop:
+ /* ignore drop opcodes if followed by OP_return_undef */
+ while (s->byte_code.buf[++pos] == OP_drop)
+ continue;
+ if (s->byte_code.buf[pos] == OP_return_undef)
+ op = OP_return_undef;
+ /* fall thru */
+ default:
+ goto done;
+ }
+ break;
+ }
+ }
+ /* cycle detected, could issue a warning */
+ done:
+ *pop = op;
+ update_label(s, label, +1);
+ return label;
+}
+
+static void push_short_int(DynBuf *bc_out, int val)
+{
+#if SHORT_OPCODES
+ if (val >= -1 && val <= 7) {
+ dbuf_putc(bc_out, OP_push_0 + val);
+ return;
+ }
+ if (val == (int8_t)val) {
+ dbuf_putc(bc_out, OP_push_i8);
+ dbuf_putc(bc_out, val);
+ return;
+ }
+ if (val == (int16_t)val) {
+ dbuf_putc(bc_out, OP_push_i16);
+ dbuf_put_u16(bc_out, val);
+ return;
+ }
+#endif
+ dbuf_putc(bc_out, OP_push_i32);
+ dbuf_put_u32(bc_out, val);
+}
+
+static void put_short_code(DynBuf *bc_out, int op, int idx)
+{
+#if SHORT_OPCODES
+ if (idx < 4) {
+ switch (op) {
+ case OP_get_loc:
+ dbuf_putc(bc_out, OP_get_loc0 + idx);
+ return;
+ case OP_put_loc:
+ dbuf_putc(bc_out, OP_put_loc0 + idx);
+ return;
+ case OP_set_loc:
+ dbuf_putc(bc_out, OP_set_loc0 + idx);
+ return;
+ case OP_get_arg:
+ dbuf_putc(bc_out, OP_get_arg0 + idx);
+ return;
+ case OP_put_arg:
+ dbuf_putc(bc_out, OP_put_arg0 + idx);
+ return;
+ case OP_set_arg:
+ dbuf_putc(bc_out, OP_set_arg0 + idx);
+ return;
+ case OP_get_var_ref:
+ dbuf_putc(bc_out, OP_get_var_ref0 + idx);
+ return;
+ case OP_put_var_ref:
+ dbuf_putc(bc_out, OP_put_var_ref0 + idx);
+ return;
+ case OP_set_var_ref:
+ dbuf_putc(bc_out, OP_set_var_ref0 + idx);
+ return;
+ case OP_call:
+ dbuf_putc(bc_out, OP_call0 + idx);
+ return;
+ }
+ }
+ if (idx < 256) {
+ switch (op) {
+ case OP_get_loc:
+ dbuf_putc(bc_out, OP_get_loc8);
+ dbuf_putc(bc_out, idx);
+ return;
+ case OP_put_loc:
+ dbuf_putc(bc_out, OP_put_loc8);
+ dbuf_putc(bc_out, idx);
+ return;
+ case OP_set_loc:
+ dbuf_putc(bc_out, OP_set_loc8);
+ dbuf_putc(bc_out, idx);
+ return;
+ }
+ }
+#endif
+ dbuf_putc(bc_out, op);
+ dbuf_put_u16(bc_out, idx);
+}
+
+/* peephole optimizations and resolve goto/labels */
+static __exception int resolve_labels(JSContext *ctx, JSFunctionDef *s)
+{
+ int pos, pos_next, bc_len, op, op1, len, i, line_num;
+ const uint8_t *bc_buf;
+ DynBuf bc_out;
+ LabelSlot *label_slots, *ls;
+ RelocEntry *re, *re_next;
+ CodeContext cc;
+ int label;
+#if SHORT_OPCODES
+ JumpSlot *jp;
+#endif
+
+ label_slots = s->label_slots;
+
+ line_num = s->line_num;
+
+ cc.bc_buf = bc_buf = s->byte_code.buf;
+ cc.bc_len = bc_len = s->byte_code.size;
+ js_dbuf_init(ctx, &bc_out);
+
+#if SHORT_OPCODES
+ if (s->jump_size) {
+ s->jump_slots = js_mallocz(s->ctx, sizeof(*s->jump_slots) * s->jump_size);
+ if (s->jump_slots == NULL)
+ return -1;
+ }
+#endif
+ /* XXX: Should skip this phase if not generating SHORT_OPCODES */
+ if (s->line_number_size && !(s->js_mode & JS_MODE_STRIP)) {
+ s->line_number_slots = js_mallocz(s->ctx, sizeof(*s->line_number_slots) * s->line_number_size);
+ if (s->line_number_slots == NULL)
+ return -1;
+ s->line_number_last = s->line_num;
+ s->line_number_last_pc = 0;
+ }
+
+ /* initialize the 'home_object' variable if needed */
+ if (s->home_object_var_idx >= 0) {
+ dbuf_putc(&bc_out, OP_special_object);
+ dbuf_putc(&bc_out, OP_SPECIAL_OBJECT_HOME_OBJECT);
+ put_short_code(&bc_out, OP_put_loc, s->home_object_var_idx);
+ }
+ /* initialize the 'this.active_func' variable if needed */
+ if (s->this_active_func_var_idx >= 0) {
+ dbuf_putc(&bc_out, OP_special_object);
+ dbuf_putc(&bc_out, OP_SPECIAL_OBJECT_THIS_FUNC);
+ put_short_code(&bc_out, OP_put_loc, s->this_active_func_var_idx);
+ }
+ /* initialize the 'new.target' variable if needed */
+ if (s->new_target_var_idx >= 0) {
+ dbuf_putc(&bc_out, OP_special_object);
+ dbuf_putc(&bc_out, OP_SPECIAL_OBJECT_NEW_TARGET);
+ put_short_code(&bc_out, OP_put_loc, s->new_target_var_idx);
+ }
+ /* initialize the 'this' variable if needed. In a derived class
+ constructor, this is initially uninitialized. */
+ if (s->this_var_idx >= 0) {
+ if (s->is_derived_class_constructor) {
+ dbuf_putc(&bc_out, OP_set_loc_uninitialized);
+ dbuf_put_u16(&bc_out, s->this_var_idx);
+ } else {
+ dbuf_putc(&bc_out, OP_push_this);
+ put_short_code(&bc_out, OP_put_loc, s->this_var_idx);
+ }
+ }
+ /* initialize the 'arguments' variable if needed */
+ if (s->arguments_var_idx >= 0) {
+ if ((s->js_mode & JS_MODE_STRICT) || !s->has_simple_parameter_list) {
+ dbuf_putc(&bc_out, OP_special_object);
+ dbuf_putc(&bc_out, OP_SPECIAL_OBJECT_ARGUMENTS);
+ } else {
+ dbuf_putc(&bc_out, OP_special_object);
+ dbuf_putc(&bc_out, OP_SPECIAL_OBJECT_MAPPED_ARGUMENTS);
+ }
+ if (s->arguments_arg_idx >= 0)
+ put_short_code(&bc_out, OP_set_loc, s->arguments_arg_idx);
+ put_short_code(&bc_out, OP_put_loc, s->arguments_var_idx);
+ }
+ /* initialize a reference to the current function if needed */
+ if (s->func_var_idx >= 0) {
+ dbuf_putc(&bc_out, OP_special_object);
+ dbuf_putc(&bc_out, OP_SPECIAL_OBJECT_THIS_FUNC);
+ put_short_code(&bc_out, OP_put_loc, s->func_var_idx);
+ }
+ /* initialize the variable environment object if needed */
+ if (s->var_object_idx >= 0) {
+ dbuf_putc(&bc_out, OP_special_object);
+ dbuf_putc(&bc_out, OP_SPECIAL_OBJECT_VAR_OBJECT);
+ put_short_code(&bc_out, OP_put_loc, s->var_object_idx);
+ }
+ if (s->arg_var_object_idx >= 0) {
+ dbuf_putc(&bc_out, OP_special_object);
+ dbuf_putc(&bc_out, OP_SPECIAL_OBJECT_VAR_OBJECT);
+ put_short_code(&bc_out, OP_put_loc, s->arg_var_object_idx);
+ }
+
+ for (pos = 0; pos < bc_len; pos = pos_next) {
+ int val;
+ op = bc_buf[pos];
+ len = opcode_info[op].size;
+ pos_next = pos + len;
+ switch(op) {
+ case OP_line_num:
+ /* line number info (for debug). We put it in a separate
+ compressed table to reduce memory usage and get better
+ performance */
+ line_num = get_u32(bc_buf + pos + 1);
+ break;
+
+ case OP_label:
+ {
+ label = get_u32(bc_buf + pos + 1);
+ assert(label >= 0 && label < s->label_count);
+ ls = &label_slots[label];
+ assert(ls->addr == -1);
+ ls->addr = bc_out.size;
+ /* resolve the relocation entries */
+ for(re = ls->first_reloc; re != NULL; re = re_next) {
+ int diff = ls->addr - re->addr;
+ re_next = re->next;
+ switch (re->size) {
+ case 4:
+ put_u32(bc_out.buf + re->addr, diff);
+ break;
+ case 2:
+ assert(diff == (int16_t)diff);
+ put_u16(bc_out.buf + re->addr, diff);
+ break;
+ case 1:
+ assert(diff == (int8_t)diff);
+ put_u8(bc_out.buf + re->addr, diff);
+ break;
+ }
+ js_free(ctx, re);
+ }
+ ls->first_reloc = NULL;
+ }
+ break;
+
+ case OP_call:
+ case OP_call_method:
+ {
+ /* detect and transform tail calls */
+ int argc;
+ argc = get_u16(bc_buf + pos + 1);
+ if (code_match(&cc, pos_next, OP_return, -1)) {
+ if (cc.line_num >= 0) line_num = cc.line_num;
+ add_pc2line_info(s, bc_out.size, line_num);
+ put_short_code(&bc_out, op + 1, argc);
+ pos_next = skip_dead_code(s, bc_buf, bc_len, cc.pos, &line_num);
+ break;
+ }
+ add_pc2line_info(s, bc_out.size, line_num);
+ put_short_code(&bc_out, op, argc);
+ break;
+ }
+ goto no_change;
+
+ case OP_return:
+ case OP_return_undef:
+ case OP_return_async:
+ case OP_throw:
+ case OP_throw_error:
+ pos_next = skip_dead_code(s, bc_buf, bc_len, pos_next, &line_num);
+ goto no_change;
+
+ case OP_goto:
+ label = get_u32(bc_buf + pos + 1);
+ has_goto:
+ if (OPTIMIZE) {
+ int line1 = -1;
+ /* Use custom matcher because multiple labels can follow */
+ label = find_jump_target(s, label, &op1, &line1);
+ if (code_has_label(&cc, pos_next, label)) {
+ /* jump to next instruction: remove jump */
+ update_label(s, label, -1);
+ break;
+ }
+ if (op1 == OP_return || op1 == OP_return_undef || op1 == OP_throw) {
+ /* jump to return/throw: remove jump, append return/throw */
+ /* updating the line number obfuscates assembly listing */
+ //if (line1 >= 0) line_num = line1;
+ update_label(s, label, -1);
+ add_pc2line_info(s, bc_out.size, line_num);
+ dbuf_putc(&bc_out, op1);
+ pos_next = skip_dead_code(s, bc_buf, bc_len, pos_next, &line_num);
+ break;
+ }
+ /* XXX: should duplicate single instructions followed by goto or return */
+ /* For example, can match one of these followed by return:
+ push_i32 / push_const / push_atom_value / get_var /
+ undefined / null / push_false / push_true / get_ref_value /
+ get_loc / get_arg / get_var_ref
+ */
+ }
+ goto has_label;
+
+ case OP_gosub:
+ label = get_u32(bc_buf + pos + 1);
+ if (0 && OPTIMIZE) {
+ label = find_jump_target(s, label, &op1, NULL);
+ if (op1 == OP_ret) {
+ update_label(s, label, -1);
+ /* empty finally clause: remove gosub */
+ break;
+ }
+ }
+ goto has_label;
+
+ case OP_catch:
+ label = get_u32(bc_buf + pos + 1);
+ goto has_label;
+
+ case OP_if_true:
+ case OP_if_false:
+ label = get_u32(bc_buf + pos + 1);
+ if (OPTIMIZE) {
+ label = find_jump_target(s, label, &op1, NULL);
+ /* transform if_false/if_true(l1) label(l1) -> drop label(l1) */
+ if (code_has_label(&cc, pos_next, label)) {
+ update_label(s, label, -1);
+ dbuf_putc(&bc_out, OP_drop);
+ break;
+ }
+ /* transform if_false(l1) goto(l2) label(l1) -> if_false(l2) label(l1) */
+ if (code_match(&cc, pos_next, OP_goto, -1)) {
+ int pos1 = cc.pos;
+ int line1 = cc.line_num;
+ if (code_has_label(&cc, pos1, label)) {
+ if (line1 >= 0) line_num = line1;
+ pos_next = pos1;
+ update_label(s, label, -1);
+ label = cc.label;
+ op ^= OP_if_true ^ OP_if_false;
+ }
+ }
+ }
+ has_label:
+ add_pc2line_info(s, bc_out.size, line_num);
+ if (op == OP_goto) {
+ pos_next = skip_dead_code(s, bc_buf, bc_len, pos_next, &line_num);
+ }
+ assert(label >= 0 && label < s->label_count);
+ ls = &label_slots[label];
+#if SHORT_OPCODES
+ jp = &s->jump_slots[s->jump_count++];
+ jp->op = op;
+ jp->size = 4;
+ jp->pos = bc_out.size + 1;
+ jp->label = label;
+
+ if (ls->addr == -1) {
+ int diff = ls->pos2 - pos - 1;
+ if (diff < 128 && (op == OP_if_false || op == OP_if_true || op == OP_goto)) {
+ jp->size = 1;
+ jp->op = OP_if_false8 + (op - OP_if_false);
+ dbuf_putc(&bc_out, OP_if_false8 + (op - OP_if_false));
+ dbuf_putc(&bc_out, 0);
+ if (!add_reloc(ctx, ls, bc_out.size - 1, 1))
+ goto fail;
+ break;
+ }
+ if (diff < 32768 && op == OP_goto) {
+ jp->size = 2;
+ jp->op = OP_goto16;
+ dbuf_putc(&bc_out, OP_goto16);
+ dbuf_put_u16(&bc_out, 0);
+ if (!add_reloc(ctx, ls, bc_out.size - 2, 2))
+ goto fail;
+ break;
+ }
+ } else {
+ int diff = ls->addr - bc_out.size - 1;
+ if (diff == (int8_t)diff && (op == OP_if_false || op == OP_if_true || op == OP_goto)) {
+ jp->size = 1;
+ jp->op = OP_if_false8 + (op - OP_if_false);
+ dbuf_putc(&bc_out, OP_if_false8 + (op - OP_if_false));
+ dbuf_putc(&bc_out, diff);
+ break;
+ }
+ if (diff == (int16_t)diff && op == OP_goto) {
+ jp->size = 2;
+ jp->op = OP_goto16;
+ dbuf_putc(&bc_out, OP_goto16);
+ dbuf_put_u16(&bc_out, diff);
+ break;
+ }
+ }
+#endif
+ dbuf_putc(&bc_out, op);
+ dbuf_put_u32(&bc_out, ls->addr - bc_out.size);
+ if (ls->addr == -1) {
+ /* unresolved yet: create a new relocation entry */
+ if (!add_reloc(ctx, ls, bc_out.size - 4, 4))
+ goto fail;
+ }
+ break;
+ case OP_with_get_var:
+ case OP_with_put_var:
+ case OP_with_delete_var:
+ case OP_with_make_ref:
+ case OP_with_get_ref:
+ case OP_with_get_ref_undef:
+ {
+ JSAtom atom;
+ int is_with;
+
+ atom = get_u32(bc_buf + pos + 1);
+ label = get_u32(bc_buf + pos + 5);
+ is_with = bc_buf[pos + 9];
+ if (OPTIMIZE) {
+ label = find_jump_target(s, label, &op1, NULL);
+ }
+ assert(label >= 0 && label < s->label_count);
+ ls = &label_slots[label];
+ add_pc2line_info(s, bc_out.size, line_num);
+#if SHORT_OPCODES
+ jp = &s->jump_slots[s->jump_count++];
+ jp->op = op;
+ jp->size = 4;
+ jp->pos = bc_out.size + 5;
+ jp->label = label;
+#endif
+ dbuf_putc(&bc_out, op);
+ dbuf_put_u32(&bc_out, atom);
+ dbuf_put_u32(&bc_out, ls->addr - bc_out.size);
+ if (ls->addr == -1) {
+ /* unresolved yet: create a new relocation entry */
+ if (!add_reloc(ctx, ls, bc_out.size - 4, 4))
+ goto fail;
+ }
+ dbuf_putc(&bc_out, is_with);
+ }
+ break;
+
+ case OP_drop:
+ if (OPTIMIZE) {
+ /* remove useless drops before return */
+ if (code_match(&cc, pos_next, OP_return_undef, -1)) {
+ if (cc.line_num >= 0) line_num = cc.line_num;
+ break;
+ }
+ }
+ goto no_change;
+
+ case OP_null:
+#if SHORT_OPCODES
+ if (OPTIMIZE) {
+ /* transform null strict_eq into is_null */
+ if (code_match(&cc, pos_next, OP_strict_eq, -1)) {
+ if (cc.line_num >= 0) line_num = cc.line_num;
+ add_pc2line_info(s, bc_out.size, line_num);
+ dbuf_putc(&bc_out, OP_is_null);
+ pos_next = cc.pos;
+ break;
+ }
+ /* transform null strict_neq if_false/if_true -> is_null if_true/if_false */
+ if (code_match(&cc, pos_next, OP_strict_neq, M2(OP_if_false, OP_if_true), -1)) {
+ if (cc.line_num >= 0) line_num = cc.line_num;
+ add_pc2line_info(s, bc_out.size, line_num);
+ dbuf_putc(&bc_out, OP_is_null);
+ pos_next = cc.pos;
+ label = cc.label;
+ op = cc.op ^ OP_if_false ^ OP_if_true;
+ goto has_label;
+ }
+ }
+#endif
+ /* fall thru */
+ case OP_push_false:
+ case OP_push_true:
+ if (OPTIMIZE) {
+ val = (op == OP_push_true);
+ if (code_match(&cc, pos_next, M2(OP_if_false, OP_if_true), -1)) {
+ has_constant_test:
+ if (cc.line_num >= 0) line_num = cc.line_num;
+ if (val == cc.op - OP_if_false) {
+ /* transform null if_false(l1) -> goto l1 */
+ /* transform false if_false(l1) -> goto l1 */
+ /* transform true if_true(l1) -> goto l1 */
+ pos_next = cc.pos;
+ op = OP_goto;
+ label = cc.label;
+ goto has_goto;
+ } else {
+ /* transform null if_true(l1) -> nop */
+ /* transform false if_true(l1) -> nop */
+ /* transform true if_false(l1) -> nop */
+ pos_next = cc.pos;
+ update_label(s, cc.label, -1);
+ break;
+ }
+ }
+ }
+ goto no_change;
+
+ case OP_push_i32:
+ if (OPTIMIZE) {
+ /* transform i32(val) neg -> i32(-val) */
+ val = get_i32(bc_buf + pos + 1);
+ if ((val != INT32_MIN && val != 0)
+ && code_match(&cc, pos_next, OP_neg, -1)) {
+ if (cc.line_num >= 0) line_num = cc.line_num;
+ if (code_match(&cc, cc.pos, OP_drop, -1)) {
+ if (cc.line_num >= 0) line_num = cc.line_num;
+ } else {
+ add_pc2line_info(s, bc_out.size, line_num);
+ push_short_int(&bc_out, -val);
+ }
+ pos_next = cc.pos;
+ break;
+ }
+ /* remove push/drop pairs generated by the parser */
+ if (code_match(&cc, pos_next, OP_drop, -1)) {
+ if (cc.line_num >= 0) line_num = cc.line_num;
+ pos_next = cc.pos;
+ break;
+ }
+ /* Optimize constant tests: `if (0)`, `if (1)`, `if (!0)`... */
+ if (code_match(&cc, pos_next, M2(OP_if_false, OP_if_true), -1)) {
+ val = (val != 0);
+ goto has_constant_test;
+ }
+ add_pc2line_info(s, bc_out.size, line_num);
+ push_short_int(&bc_out, val);
+ break;
+ }
+ goto no_change;
+
+#if SHORT_OPCODES
+ case OP_push_const:
+ case OP_fclosure:
+ if (OPTIMIZE) {
+ int idx = get_u32(bc_buf + pos + 1);
+ if (idx < 256) {
+ add_pc2line_info(s, bc_out.size, line_num);
+ dbuf_putc(&bc_out, OP_push_const8 + op - OP_push_const);
+ dbuf_putc(&bc_out, idx);
+ break;
+ }
+ }
+ goto no_change;
+
+ case OP_get_field:
+ if (OPTIMIZE) {
+ JSAtom atom = get_u32(bc_buf + pos + 1);
+ if (atom == JS_ATOM_length) {
+ JS_FreeAtom(ctx, atom);
+ add_pc2line_info(s, bc_out.size, line_num);
+ dbuf_putc(&bc_out, OP_get_length);
+ break;
+ }
+ }
+ goto no_change;
+#endif
+ case OP_push_atom_value:
+ if (OPTIMIZE) {
+ JSAtom atom = get_u32(bc_buf + pos + 1);
+ /* remove push/drop pairs generated by the parser */
+ if (code_match(&cc, pos_next, OP_drop, -1)) {
+ JS_FreeAtom(ctx, atom);
+ if (cc.line_num >= 0) line_num = cc.line_num;
+ pos_next = cc.pos;
+ break;
+ }
+#if SHORT_OPCODES
+ if (atom == JS_ATOM_empty_string) {
+ JS_FreeAtom(ctx, atom);
+ add_pc2line_info(s, bc_out.size, line_num);
+ dbuf_putc(&bc_out, OP_push_empty_string);
+ break;
+ }
+#endif
+ }
+ goto no_change;
+
+ case OP_to_propkey:
+ case OP_to_propkey2:
+ if (OPTIMIZE) {
+ /* remove redundant to_propkey/to_propkey2 opcodes when storing simple data */
+ if (code_match(&cc, pos_next, M3(OP_get_loc, OP_get_arg, OP_get_var_ref), -1, OP_put_array_el, -1)
+ || code_match(&cc, pos_next, M3(OP_push_i32, OP_push_const, OP_push_atom_value), OP_put_array_el, -1)
+ || code_match(&cc, pos_next, M4(OP_undefined, OP_null, OP_push_true, OP_push_false), OP_put_array_el, -1)) {
+ break;
+ }
+ }
+ goto no_change;
+
+ case OP_undefined:
+ if (OPTIMIZE) {
+ /* remove push/drop pairs generated by the parser */
+ if (code_match(&cc, pos_next, OP_drop, -1)) {
+ if (cc.line_num >= 0) line_num = cc.line_num;
+ pos_next = cc.pos;
+ break;
+ }
+ /* transform undefined return -> return_undefined */
+ if (code_match(&cc, pos_next, OP_return, -1)) {
+ if (cc.line_num >= 0) line_num = cc.line_num;
+ add_pc2line_info(s, bc_out.size, line_num);
+ dbuf_putc(&bc_out, OP_return_undef);
+ pos_next = cc.pos;
+ break;
+ }
+ /* transform undefined if_true(l1)/if_false(l1) -> nop/goto(l1) */
+ if (code_match(&cc, pos_next, M2(OP_if_false, OP_if_true), -1)) {
+ val = 0;
+ goto has_constant_test;
+ }
+#if SHORT_OPCODES
+ /* transform undefined strict_eq -> is_undefined */
+ if (code_match(&cc, pos_next, OP_strict_eq, -1)) {
+ if (cc.line_num >= 0) line_num = cc.line_num;
+ add_pc2line_info(s, bc_out.size, line_num);
+ dbuf_putc(&bc_out, OP_is_undefined);
+ pos_next = cc.pos;
+ break;
+ }
+ /* transform undefined strict_neq if_false/if_true -> is_undefined if_true/if_false */
+ if (code_match(&cc, pos_next, OP_strict_neq, M2(OP_if_false, OP_if_true), -1)) {
+ if (cc.line_num >= 0) line_num = cc.line_num;
+ add_pc2line_info(s, bc_out.size, line_num);
+ dbuf_putc(&bc_out, OP_is_undefined);
+ pos_next = cc.pos;
+ label = cc.label;
+ op = cc.op ^ OP_if_false ^ OP_if_true;
+ goto has_label;
+ }
+#endif
+ }
+ goto no_change;
+
+ case OP_insert2:
+ if (OPTIMIZE) {
+ /* Transformation:
+ insert2 put_field(a) drop -> put_field(a)
+ insert2 put_var_strict(a) drop -> put_var_strict(a)
+ */
+ if (code_match(&cc, pos_next, M2(OP_put_field, OP_put_var_strict), OP_drop, -1)) {
+ if (cc.line_num >= 0) line_num = cc.line_num;
+ add_pc2line_info(s, bc_out.size, line_num);
+ dbuf_putc(&bc_out, cc.op);
+ dbuf_put_u32(&bc_out, cc.atom);
+ pos_next = cc.pos;
+ break;
+ }
+ }
+ goto no_change;
+
+ case OP_dup:
+ if (OPTIMIZE) {
+ /* Transformation: dup put_x(n) drop -> put_x(n) */
+ int op1, line2 = -1;
+ /* Transformation: dup put_x(n) -> set_x(n) */
+ if (code_match(&cc, pos_next, M3(OP_put_loc, OP_put_arg, OP_put_var_ref), -1, -1)) {
+ if (cc.line_num >= 0) line_num = cc.line_num;
+ op1 = cc.op + 1; /* put_x -> set_x */
+ pos_next = cc.pos;
+ if (code_match(&cc, cc.pos, OP_drop, -1)) {
+ if (cc.line_num >= 0) line_num = cc.line_num;
+ op1 -= 1; /* set_x drop -> put_x */
+ pos_next = cc.pos;
+ if (code_match(&cc, cc.pos, op1 - 1, cc.idx, -1)) {
+ line2 = cc.line_num; /* delay line number update */
+ op1 += 1; /* put_x(n) get_x(n) -> set_x(n) */
+ pos_next = cc.pos;
+ }
+ }
+ add_pc2line_info(s, bc_out.size, line_num);
+ put_short_code(&bc_out, op1, cc.idx);
+ if (line2 >= 0) line_num = line2;
+ break;
+ }
+ }
+ goto no_change;
+
+ case OP_get_loc:
+ if (OPTIMIZE) {
+ /* transformation:
+ get_loc(n) post_dec put_loc(n) drop -> dec_loc(n)
+ get_loc(n) post_inc put_loc(n) drop -> inc_loc(n)
+ get_loc(n) dec dup put_loc(n) drop -> dec_loc(n)
+ get_loc(n) inc dup put_loc(n) drop -> inc_loc(n)
+ */
+ int idx;
+ idx = get_u16(bc_buf + pos + 1);
+ if (idx >= 256)
+ goto no_change;
+ if (code_match(&cc, pos_next, M2(OP_post_dec, OP_post_inc), OP_put_loc, idx, OP_drop, -1) ||
+ code_match(&cc, pos_next, M2(OP_dec, OP_inc), OP_dup, OP_put_loc, idx, OP_drop, -1)) {
+ if (cc.line_num >= 0) line_num = cc.line_num;
+ add_pc2line_info(s, bc_out.size, line_num);
+ dbuf_putc(&bc_out, (cc.op == OP_inc || cc.op == OP_post_inc) ? OP_inc_loc : OP_dec_loc);
+ dbuf_putc(&bc_out, idx);
+ pos_next = cc.pos;
+ break;
+ }
+ /* transformation:
+ get_loc(n) push_atom_value(x) add dup put_loc(n) drop -> push_atom_value(x) add_loc(n)
+ */
+ if (code_match(&cc, pos_next, OP_push_atom_value, OP_add, OP_dup, OP_put_loc, idx, OP_drop, -1)) {
+ if (cc.line_num >= 0) line_num = cc.line_num;
+ add_pc2line_info(s, bc_out.size, line_num);
+#if SHORT_OPCODES
+ if (cc.atom == JS_ATOM_empty_string) {
+ JS_FreeAtom(ctx, cc.atom);
+ dbuf_putc(&bc_out, OP_push_empty_string);
+ } else
+#endif
+ {
+ dbuf_putc(&bc_out, OP_push_atom_value);
+ dbuf_put_u32(&bc_out, cc.atom);
+ }
+ dbuf_putc(&bc_out, OP_add_loc);
+ dbuf_putc(&bc_out, idx);
+ pos_next = cc.pos;
+ break;
+ }
+ /* transformation:
+ get_loc(n) push_i32(x) add dup put_loc(n) drop -> push_i32(x) add_loc(n)
+ */
+ if (code_match(&cc, pos_next, OP_push_i32, OP_add, OP_dup, OP_put_loc, idx, OP_drop, -1)) {
+ if (cc.line_num >= 0) line_num = cc.line_num;
+ add_pc2line_info(s, bc_out.size, line_num);
+ push_short_int(&bc_out, cc.label);
+ dbuf_putc(&bc_out, OP_add_loc);
+ dbuf_putc(&bc_out, idx);
+ pos_next = cc.pos;
+ break;
+ }
+ /* transformation: XXX: also do these:
+ get_loc(n) get_loc(x) add dup put_loc(n) drop -> get_loc(x) add_loc(n)
+ get_loc(n) get_arg(x) add dup put_loc(n) drop -> get_arg(x) add_loc(n)
+ get_loc(n) get_var_ref(x) add dup put_loc(n) drop -> get_var_ref(x) add_loc(n)
+ */
+ if (code_match(&cc, pos_next, M3(OP_get_loc, OP_get_arg, OP_get_var_ref), -1, OP_add, OP_dup, OP_put_loc, idx, OP_drop, -1)) {
+ if (cc.line_num >= 0) line_num = cc.line_num;
+ add_pc2line_info(s, bc_out.size, line_num);
+ put_short_code(&bc_out, cc.op, cc.idx);
+ dbuf_putc(&bc_out, OP_add_loc);
+ dbuf_putc(&bc_out, idx);
+ pos_next = cc.pos;
+ break;
+ }
+ add_pc2line_info(s, bc_out.size, line_num);
+ put_short_code(&bc_out, op, idx);
+ break;
+ }
+ goto no_change;
+#if SHORT_OPCODES
+ case OP_get_arg:
+ case OP_get_var_ref:
+ if (OPTIMIZE) {
+ int idx;
+ idx = get_u16(bc_buf + pos + 1);
+ add_pc2line_info(s, bc_out.size, line_num);
+ put_short_code(&bc_out, op, idx);
+ break;
+ }
+ goto no_change;
+#endif
+ case OP_put_loc:
+ case OP_put_arg:
+ case OP_put_var_ref:
+ if (OPTIMIZE) {
+ /* transformation: put_x(n) get_x(n) -> set_x(n) */
+ int idx;
+ idx = get_u16(bc_buf + pos + 1);
+ if (code_match(&cc, pos_next, op - 1, idx, -1)) {
+ if (cc.line_num >= 0) line_num = cc.line_num;
+ add_pc2line_info(s, bc_out.size, line_num);
+ put_short_code(&bc_out, op + 1, idx);
+ pos_next = cc.pos;
+ break;
+ }
+ add_pc2line_info(s, bc_out.size, line_num);
+ put_short_code(&bc_out, op, idx);
+ break;
+ }
+ goto no_change;
+
+ case OP_post_inc:
+ case OP_post_dec:
+ if (OPTIMIZE) {
+ /* transformation:
+ post_inc put_x drop -> inc put_x
+ post_inc perm3 put_field drop -> inc put_field
+ post_inc perm3 put_var_strict drop -> inc put_var_strict
+ post_inc perm4 put_array_el drop -> inc put_array_el
+ */
+ int op1, idx;
+ if (code_match(&cc, pos_next, M3(OP_put_loc, OP_put_arg, OP_put_var_ref), -1, OP_drop, -1)) {
+ if (cc.line_num >= 0) line_num = cc.line_num;
+ op1 = cc.op;
+ idx = cc.idx;
+ pos_next = cc.pos;
+ if (code_match(&cc, cc.pos, op1 - 1, idx, -1)) {
+ if (cc.line_num >= 0) line_num = cc.line_num;
+ op1 += 1; /* put_x(n) get_x(n) -> set_x(n) */
+ pos_next = cc.pos;
+ }
+ add_pc2line_info(s, bc_out.size, line_num);
+ dbuf_putc(&bc_out, OP_dec + (op - OP_post_dec));
+ put_short_code(&bc_out, op1, idx);
+ break;
+ }
+ if (code_match(&cc, pos_next, OP_perm3, M2(OP_put_field, OP_put_var_strict), OP_drop, -1)) {
+ if (cc.line_num >= 0) line_num = cc.line_num;
+ add_pc2line_info(s, bc_out.size, line_num);
+ dbuf_putc(&bc_out, OP_dec + (op - OP_post_dec));
+ dbuf_putc(&bc_out, cc.op);
+ dbuf_put_u32(&bc_out, cc.atom);
+ pos_next = cc.pos;
+ break;
+ }
+ if (code_match(&cc, pos_next, OP_perm4, OP_put_array_el, OP_drop, -1)) {
+ if (cc.line_num >= 0) line_num = cc.line_num;
+ add_pc2line_info(s, bc_out.size, line_num);
+ dbuf_putc(&bc_out, OP_dec + (op - OP_post_dec));
+ dbuf_putc(&bc_out, OP_put_array_el);
+ pos_next = cc.pos;
+ break;
+ }
+ }
+ goto no_change;
+
+#if SHORT_OPCODES
+ case OP_typeof:
+ if (OPTIMIZE) {
+ /* simplify typeof tests */
+ if (code_match(&cc, pos_next, OP_push_atom_value, M4(OP_strict_eq, OP_strict_neq, OP_eq, OP_neq), -1)) {
+ if (cc.line_num >= 0) line_num = cc.line_num;
+ int op1 = (cc.op == OP_strict_eq || cc.op == OP_eq) ? OP_strict_eq : OP_strict_neq;
+ int op2 = -1;
+ switch (cc.atom) {
+ case JS_ATOM_undefined:
+ op2 = OP_typeof_is_undefined;
+ break;
+ case JS_ATOM_function:
+ op2 = OP_typeof_is_function;
+ break;
+ }
+ if (op2 >= 0) {
+ /* transform typeof(s) == "<type>" into is_<type> */
+ if (op1 == OP_strict_eq) {
+ add_pc2line_info(s, bc_out.size, line_num);
+ dbuf_putc(&bc_out, op2);
+ JS_FreeAtom(ctx, cc.atom);
+ pos_next = cc.pos;
+ break;
+ }
+ if (op1 == OP_strict_neq && code_match(&cc, cc.pos, OP_if_false, -1)) {
+ /* transform typeof(s) != "<type>" if_false into is_<type> if_true */
+ if (cc.line_num >= 0) line_num = cc.line_num;
+ add_pc2line_info(s, bc_out.size, line_num);
+ dbuf_putc(&bc_out, op2);
+ JS_FreeAtom(ctx, cc.atom);
+ pos_next = cc.pos;
+ label = cc.label;
+ op = OP_if_true;
+ goto has_label;
+ }
+ }
+ }
+ }
+ goto no_change;
+#endif
+
+ default:
+ no_change:
+ add_pc2line_info(s, bc_out.size, line_num);
+ dbuf_put(&bc_out, bc_buf + pos, len);
+ break;
+ }
+ }
+
+ /* check that there were no missing labels */
+ for(i = 0; i < s->label_count; i++) {
+ assert(label_slots[i].first_reloc == NULL);
+ }
+#if SHORT_OPCODES
+ if (OPTIMIZE) {
+ /* more jump optimizations */
+ int patch_offsets = 0;
+ for (i = 0, jp = s->jump_slots; i < s->jump_count; i++, jp++) {
+ LabelSlot *ls;
+ JumpSlot *jp1;
+ int j, pos, diff, delta;
+
+ delta = 3;
+ switch (op = jp->op) {
+ case OP_goto16:
+ delta = 1;
+ /* fall thru */
+ case OP_if_false:
+ case OP_if_true:
+ case OP_goto:
+ pos = jp->pos;
+ diff = s->label_slots[jp->label].addr - pos;
+ if (diff >= -128 && diff <= 127 + delta) {
+ //put_u8(bc_out.buf + pos, diff);
+ jp->size = 1;
+ if (op == OP_goto16) {
+ bc_out.buf[pos - 1] = jp->op = OP_goto8;
+ } else {
+ bc_out.buf[pos - 1] = jp->op = OP_if_false8 + (op - OP_if_false);
+ }
+ goto shrink;
+ } else
+ if (diff == (int16_t)diff && op == OP_goto) {
+ //put_u16(bc_out.buf + pos, diff);
+ jp->size = 2;
+ delta = 2;
+ bc_out.buf[pos - 1] = jp->op = OP_goto16;
+ shrink:
+ /* XXX: should reduce complexity, using 2 finger copy scheme */
+ memmove(bc_out.buf + pos + jp->size, bc_out.buf + pos + jp->size + delta,
+ bc_out.size - pos - jp->size - delta);
+ bc_out.size -= delta;
+ patch_offsets++;
+ for (j = 0, ls = s->label_slots; j < s->label_count; j++, ls++) {
+ if (ls->addr > pos)
+ ls->addr -= delta;
+ }
+ for (j = i + 1, jp1 = jp + 1; j < s->jump_count; j++, jp1++) {
+ if (jp1->pos > pos)
+ jp1->pos -= delta;
+ }
+ for (j = 0; j < s->line_number_count; j++) {
+ if (s->line_number_slots[j].pc > pos)
+ s->line_number_slots[j].pc -= delta;
+ }
+ continue;
+ }
+ break;
+ }
+ }
+ if (patch_offsets) {
+ JumpSlot *jp1;
+ int j;
+ for (j = 0, jp1 = s->jump_slots; j < s->jump_count; j++, jp1++) {
+ int diff1 = s->label_slots[jp1->label].addr - jp1->pos;
+ switch (jp1->size) {
+ case 1:
+ put_u8(bc_out.buf + jp1->pos, diff1);
+ break;
+ case 2:
+ put_u16(bc_out.buf + jp1->pos, diff1);
+ break;
+ case 4:
+ put_u32(bc_out.buf + jp1->pos, diff1);
+ break;
+ }
+ }
+ }
+ }
+ js_free(ctx, s->jump_slots);
+ s->jump_slots = NULL;
+#endif
+ js_free(ctx, s->label_slots);
+ s->label_slots = NULL;
+ /* XXX: should delay until copying to runtime bytecode function */
+ compute_pc2line_info(s);
+ js_free(ctx, s->line_number_slots);
+ s->line_number_slots = NULL;
+ /* set the new byte code */
+ dbuf_free(&s->byte_code);
+ s->byte_code = bc_out;
+ s->use_short_opcodes = TRUE;
+ if (dbuf_error(&s->byte_code)) {
+ JS_ThrowOutOfMemory(ctx);
+ return -1;
+ }
+ return 0;
+ fail:
+ /* XXX: not safe */
+ dbuf_free(&bc_out);
+ return -1;
+}
+
+/* compute the maximum stack size needed by the function */
+
+typedef struct StackSizeState {
+ int bc_len;
+ int stack_len_max;
+ uint16_t *stack_level_tab;
+ int32_t *catch_pos_tab;
+ int *pc_stack;
+ int pc_stack_len;
+ int pc_stack_size;
+} StackSizeState;
+
+/* 'op' is only used for error indication */
+static __exception int ss_check(JSContext *ctx, StackSizeState *s,
+ int pos, int op, int stack_len, int catch_pos)
+{
+ if ((unsigned)pos >= s->bc_len) {
+ JS_ThrowInternalError(ctx, "bytecode buffer overflow (op=%d, pc=%d)", op, pos);
+ return -1;
+ }
+ if (stack_len > s->stack_len_max) {
+ s->stack_len_max = stack_len;
+ if (s->stack_len_max > JS_STACK_SIZE_MAX) {
+ JS_ThrowInternalError(ctx, "stack overflow (op=%d, pc=%d)", op, pos);
+ return -1;
+ }
+ }
+ if (s->stack_level_tab[pos] != 0xffff) {
+ /* already explored: check that the stack size is consistent */
+ if (s->stack_level_tab[pos] != stack_len) {
+ JS_ThrowInternalError(ctx, "inconsistent stack size: %d %d (pc=%d)",
+ s->stack_level_tab[pos], stack_len, pos);
+ return -1;
+ } else if (s->catch_pos_tab[pos] != catch_pos) {
+ JS_ThrowInternalError(ctx, "inconsistent catch position: %d %d (pc=%d)",
+ s->catch_pos_tab[pos], catch_pos, pos);
+ return -1;
+ } else {
+ return 0;
+ }
+ }
+
+ /* mark as explored and store the stack size */
+ s->stack_level_tab[pos] = stack_len;
+ s->catch_pos_tab[pos] = catch_pos;
+
+ /* queue the new PC to explore */
+ if (js_resize_array(ctx, (void **)&s->pc_stack, sizeof(s->pc_stack[0]),
+ &s->pc_stack_size, s->pc_stack_len + 1))
+ return -1;
+ s->pc_stack[s->pc_stack_len++] = pos;
+ return 0;
+}
+
+static __exception int compute_stack_size(JSContext *ctx,
+ JSFunctionDef *fd,
+ int *pstack_size)
+{
+ StackSizeState s_s, *s = &s_s;
+ int i, diff, n_pop, pos_next, stack_len, pos, op, catch_pos, catch_level;
+ const JSOpCode *oi;
+ const uint8_t *bc_buf;
+
+ bc_buf = fd->byte_code.buf;
+ s->bc_len = fd->byte_code.size;
+ /* bc_len > 0 */
+ s->stack_level_tab = js_malloc(ctx, sizeof(s->stack_level_tab[0]) *
+ s->bc_len);
+ if (!s->stack_level_tab)
+ return -1;
+ for(i = 0; i < s->bc_len; i++)
+ s->stack_level_tab[i] = 0xffff;
+ s->pc_stack = NULL;
+ s->catch_pos_tab = js_malloc(ctx, sizeof(s->catch_pos_tab[0]) *
+ s->bc_len);
+ if (!s->catch_pos_tab)
+ goto fail;
+
+ s->stack_len_max = 0;
+ s->pc_stack_len = 0;
+ s->pc_stack_size = 0;
+
+ /* breadth-first graph exploration */
+ if (ss_check(ctx, s, 0, OP_invalid, 0, -1))
+ goto fail;
+
+ while (s->pc_stack_len > 0) {
+ pos = s->pc_stack[--s->pc_stack_len];
+ stack_len = s->stack_level_tab[pos];
+ catch_pos = s->catch_pos_tab[pos];
+ op = bc_buf[pos];
+ if (op == 0 || op >= OP_COUNT) {
+ JS_ThrowInternalError(ctx, "invalid opcode (op=%d, pc=%d)", op, pos);
+ goto fail;
+ }
+ oi = &short_opcode_info(op);
+#if defined(DUMP_BYTECODE) && (DUMP_BYTECODE & 64)
+ printf("%5d: %10s %5d %5d\n", pos, oi->name, stack_len, catch_pos);
+#endif
+ pos_next = pos + oi->size;
+ if (pos_next > s->bc_len) {
+ JS_ThrowInternalError(ctx, "bytecode buffer overflow (op=%d, pc=%d)", op, pos);
+ goto fail;
+ }
+ n_pop = oi->n_pop;
+ /* call pops a variable number of arguments */
+ if (oi->fmt == OP_FMT_npop || oi->fmt == OP_FMT_npop_u16) {
+ n_pop += get_u16(bc_buf + pos + 1);
+ } else {
+#if SHORT_OPCODES
+ if (oi->fmt == OP_FMT_npopx) {
+ n_pop += op - OP_call0;
+ }
+#endif
+ }
+
+ if (stack_len < n_pop) {
+ JS_ThrowInternalError(ctx, "stack underflow (op=%d, pc=%d)", op, pos);
+ goto fail;
+ }
+ stack_len += oi->n_push - n_pop;
+ if (stack_len > s->stack_len_max) {
+ s->stack_len_max = stack_len;
+ if (s->stack_len_max > JS_STACK_SIZE_MAX) {
+ JS_ThrowInternalError(ctx, "stack overflow (op=%d, pc=%d)", op, pos);
+ goto fail;
+ }
+ }
+ switch(op) {
+ case OP_tail_call:
+ case OP_tail_call_method:
+ case OP_return:
+ case OP_return_undef:
+ case OP_return_async:
+ case OP_throw:
+ case OP_throw_error:
+ case OP_ret:
+ goto done_insn;
+ case OP_goto:
+ diff = get_u32(bc_buf + pos + 1);
+ pos_next = pos + 1 + diff;
+ break;
+#if SHORT_OPCODES
+ case OP_goto16:
+ diff = (int16_t)get_u16(bc_buf + pos + 1);
+ pos_next = pos + 1 + diff;
+ break;
+ case OP_goto8:
+ diff = (int8_t)bc_buf[pos + 1];
+ pos_next = pos + 1 + diff;
+ break;
+ case OP_if_true8:
+ case OP_if_false8:
+ diff = (int8_t)bc_buf[pos + 1];
+ if (ss_check(ctx, s, pos + 1 + diff, op, stack_len, catch_pos))
+ goto fail;
+ break;
+#endif
+ case OP_if_true:
+ case OP_if_false:
+ diff = get_u32(bc_buf + pos + 1);
+ if (ss_check(ctx, s, pos + 1 + diff, op, stack_len, catch_pos))
+ goto fail;
+ break;
+ case OP_gosub:
+ diff = get_u32(bc_buf + pos + 1);
+ if (ss_check(ctx, s, pos + 1 + diff, op, stack_len + 1, catch_pos))
+ goto fail;
+ break;
+ case OP_with_get_var:
+ case OP_with_delete_var:
+ diff = get_u32(bc_buf + pos + 5);
+ if (ss_check(ctx, s, pos + 5 + diff, op, stack_len + 1, catch_pos))
+ goto fail;
+ break;
+ case OP_with_make_ref:
+ case OP_with_get_ref:
+ case OP_with_get_ref_undef:
+ diff = get_u32(bc_buf + pos + 5);
+ if (ss_check(ctx, s, pos + 5 + diff, op, stack_len + 2, catch_pos))
+ goto fail;
+ break;
+ case OP_with_put_var:
+ diff = get_u32(bc_buf + pos + 5);
+ if (ss_check(ctx, s, pos + 5 + diff, op, stack_len - 1, catch_pos))
+ goto fail;
+ break;
+ case OP_catch:
+ diff = get_u32(bc_buf + pos + 1);
+ if (ss_check(ctx, s, pos + 1 + diff, op, stack_len, catch_pos))
+ goto fail;
+ catch_pos = pos;
+ break;
+ case OP_for_of_start:
+ case OP_for_await_of_start:
+ catch_pos = pos;
+ break;
+ /* we assume the catch offset entry is only removed with
+ some op codes */
+ case OP_drop:
+ catch_level = stack_len;
+ goto check_catch;
+ case OP_nip:
+ catch_level = stack_len - 1;
+ goto check_catch;
+ case OP_nip1:
+ catch_level = stack_len - 1;
+ goto check_catch;
+ case OP_iterator_close:
+ catch_level = stack_len + 2;
+ check_catch:
+ /* Note: for for_of_start/for_await_of_start we consider
+ the catch offset is on the first stack entry instead of
+ the thirst */
+ if (catch_pos >= 0) {
+ int level;
+ level = s->stack_level_tab[catch_pos];
+ if (bc_buf[catch_pos] != OP_catch)
+ level++; /* for_of_start, for_wait_of_start */
+ /* catch_level = stack_level before op_catch is executed ? */
+ if (catch_level == level) {
+ catch_pos = s->catch_pos_tab[catch_pos];
+ }
+ }
+ break;
+ case OP_nip_catch:
+ if (catch_pos < 0) {
+ JS_ThrowInternalError(ctx, "nip_catch: no catch op (pc=%d)", pos);
+ goto fail;
+ }
+ stack_len = s->stack_level_tab[catch_pos];
+ if (bc_buf[catch_pos] != OP_catch)
+ stack_len++; /* for_of_start, for_wait_of_start */
+ stack_len++; /* no stack overflow is possible by construction */
+ catch_pos = s->catch_pos_tab[catch_pos];
+ break;
+ default:
+ break;
+ }
+ if (ss_check(ctx, s, pos_next, op, stack_len, catch_pos))
+ goto fail;
+ done_insn: ;
+ }
+ js_free(ctx, s->pc_stack);
+ js_free(ctx, s->catch_pos_tab);
+ js_free(ctx, s->stack_level_tab);
+ *pstack_size = s->stack_len_max;
+ return 0;
+ fail:
+ js_free(ctx, s->pc_stack);
+ js_free(ctx, s->catch_pos_tab);
+ js_free(ctx, s->stack_level_tab);
+ *pstack_size = 0;
+ return -1;
+}
+
+static int add_module_variables(JSContext *ctx, JSFunctionDef *fd)
+{
+ int i, idx;
+ JSModuleDef *m = fd->module;
+ JSExportEntry *me;
+ JSGlobalVar *hf;
+
+ /* The imported global variables were added as closure variables
+ in js_parse_import(). We add here the module global
+ variables. */
+
+ for(i = 0; i < fd->global_var_count; i++) {
+ hf = &fd->global_vars[i];
+ if (add_closure_var(ctx, fd, TRUE, FALSE, i, hf->var_name, hf->is_const,
+ hf->is_lexical, FALSE) < 0)
+ return -1;
+ }
+
+ /* resolve the variable names of the local exports */
+ for(i = 0; i < m->export_entries_count; i++) {
+ me = &m->export_entries[i];
+ if (me->export_type == JS_EXPORT_TYPE_LOCAL) {
+ idx = find_closure_var(ctx, fd, me->local_name);
+ if (idx < 0) {
+ JS_ThrowSyntaxErrorAtom(ctx, "exported variable '%s' does not exist",
+ me->local_name);
+ return -1;
+ }
+ me->u.local.var_idx = idx;
+ }
+ }
+ return 0;
+}
+
+/* create a function object from a function definition. The function
+ definition is freed. All the child functions are also created. It
+ must be done this way to resolve all the variables. */
+static JSValue js_create_function(JSContext *ctx, JSFunctionDef *fd)
+{
+ JSValue func_obj;
+ JSFunctionBytecode *b;
+ struct list_head *el, *el1;
+ int stack_size, scope, idx;
+ int function_size, byte_code_offset, cpool_offset;
+ int closure_var_offset, vardefs_offset;
+
+ /* recompute scope linkage */
+ for (scope = 0; scope < fd->scope_count; scope++) {
+ fd->scopes[scope].first = -1;
+ }
+ if (fd->has_parameter_expressions) {
+ /* special end of variable list marker for the argument scope */
+ fd->scopes[ARG_SCOPE_INDEX].first = ARG_SCOPE_END;
+ }
+ for (idx = 0; idx < fd->var_count; idx++) {
+ JSVarDef *vd = &fd->vars[idx];
+ vd->scope_next = fd->scopes[vd->scope_level].first;
+ fd->scopes[vd->scope_level].first = idx;
+ }
+ for (scope = 2; scope < fd->scope_count; scope++) {
+ JSVarScope *sd = &fd->scopes[scope];
+ if (sd->first < 0)
+ sd->first = fd->scopes[sd->parent].first;
+ }
+ for (idx = 0; idx < fd->var_count; idx++) {
+ JSVarDef *vd = &fd->vars[idx];
+ if (vd->scope_next < 0 && vd->scope_level > 1) {
+ scope = fd->scopes[vd->scope_level].parent;
+ vd->scope_next = fd->scopes[scope].first;
+ }
+ }
+
+ /* if the function contains an eval call, the closure variables
+ are used to compile the eval and they must be ordered by scope,
+ so it is necessary to create the closure variables before any
+ other variable lookup is done. */
+ if (fd->has_eval_call)
+ add_eval_variables(ctx, fd);
+
+ /* add the module global variables in the closure */
+ if (fd->module) {
+ if (add_module_variables(ctx, fd))
+ goto fail;
+ }
+
+ /* first create all the child functions */
+ list_for_each_safe(el, el1, &fd->child_list) {
+ JSFunctionDef *fd1;
+ int cpool_idx;
+
+ fd1 = list_entry(el, JSFunctionDef, link);
+ cpool_idx = fd1->parent_cpool_idx;
+ func_obj = js_create_function(ctx, fd1);
+ if (JS_IsException(func_obj))
+ goto fail;
+ /* save it in the constant pool */
+ assert(cpool_idx >= 0);
+ fd->cpool[cpool_idx] = func_obj;
+ }
+
+#if defined(DUMP_BYTECODE) && (DUMP_BYTECODE & 4)
+ if (!(fd->js_mode & JS_MODE_STRIP)) {
+ printf("pass 1\n");
+ dump_byte_code(ctx, 1, fd->byte_code.buf, fd->byte_code.size,
+ fd->args, fd->arg_count, fd->vars, fd->var_count,
+ fd->closure_var, fd->closure_var_count,
+ fd->cpool, fd->cpool_count, fd->source, fd->line_num,
+ fd->label_slots, NULL);
+ printf("\n");
+ }
+#endif
+
+ if (resolve_variables(ctx, fd))
+ goto fail;
+
+#if defined(DUMP_BYTECODE) && (DUMP_BYTECODE & 2)
+ if (!(fd->js_mode & JS_MODE_STRIP)) {
+ printf("pass 2\n");
+ dump_byte_code(ctx, 2, fd->byte_code.buf, fd->byte_code.size,
+ fd->args, fd->arg_count, fd->vars, fd->var_count,
+ fd->closure_var, fd->closure_var_count,
+ fd->cpool, fd->cpool_count, fd->source, fd->line_num,
+ fd->label_slots, NULL);
+ printf("\n");
+ }
+#endif
+
+ if (resolve_labels(ctx, fd))
+ goto fail;
+
+ if (compute_stack_size(ctx, fd, &stack_size) < 0)
+ goto fail;
+
+ if (fd->js_mode & JS_MODE_STRIP) {
+ function_size = offsetof(JSFunctionBytecode, debug);
+ } else {
+ function_size = sizeof(*b);
+ }
+ cpool_offset = function_size;
+ function_size += fd->cpool_count * sizeof(*fd->cpool);
+ vardefs_offset = function_size;
+ if (!(fd->js_mode & JS_MODE_STRIP) || fd->has_eval_call) {
+ function_size += (fd->arg_count + fd->var_count) * sizeof(*b->vardefs);
+ }
+ closure_var_offset = function_size;
+ function_size += fd->closure_var_count * sizeof(*fd->closure_var);
+ byte_code_offset = function_size;
+ function_size += fd->byte_code.size;
+
+ b = js_mallocz(ctx, function_size);
+ if (!b)
+ goto fail;
+ b->header.ref_count = 1;
+
+ b->byte_code_buf = (void *)((uint8_t*)b + byte_code_offset);
+ b->byte_code_len = fd->byte_code.size;
+ memcpy(b->byte_code_buf, fd->byte_code.buf, fd->byte_code.size);
+ js_free(ctx, fd->byte_code.buf);
+ fd->byte_code.buf = NULL;
+
+ b->func_name = fd->func_name;
+ if (fd->arg_count + fd->var_count > 0) {
+ if ((fd->js_mode & JS_MODE_STRIP) && !fd->has_eval_call) {
+ /* Strip variable definitions not needed at runtime */
+ int i;
+ for(i = 0; i < fd->var_count; i++) {
+ JS_FreeAtom(ctx, fd->vars[i].var_name);
+ }
+ for(i = 0; i < fd->arg_count; i++) {
+ JS_FreeAtom(ctx, fd->args[i].var_name);
+ }
+ for(i = 0; i < fd->closure_var_count; i++) {
+ JS_FreeAtom(ctx, fd->closure_var[i].var_name);
+ fd->closure_var[i].var_name = JS_ATOM_NULL;
+ }
+ } else {
+ b->vardefs = (void *)((uint8_t*)b + vardefs_offset);
+ memcpy_no_ub(b->vardefs, fd->args, fd->arg_count * sizeof(fd->args[0]));
+ memcpy_no_ub(b->vardefs + fd->arg_count, fd->vars, fd->var_count * sizeof(fd->vars[0]));
+ }
+ b->var_count = fd->var_count;
+ b->arg_count = fd->arg_count;
+ b->defined_arg_count = fd->defined_arg_count;
+ js_free(ctx, fd->args);
+ js_free(ctx, fd->vars);
+ }
+ b->cpool_count = fd->cpool_count;
+ if (b->cpool_count) {
+ b->cpool = (void *)((uint8_t*)b + cpool_offset);
+ memcpy(b->cpool, fd->cpool, b->cpool_count * sizeof(*b->cpool));
+ }
+ js_free(ctx, fd->cpool);
+ fd->cpool = NULL;
+
+ b->stack_size = stack_size;
+
+ if (fd->js_mode & JS_MODE_STRIP) {
+ JS_FreeAtom(ctx, fd->filename);
+ dbuf_free(&fd->pc2line); // probably useless
+ } else {
+ /* XXX: source and pc2line info should be packed at the end of the
+ JSFunctionBytecode structure, avoiding allocation overhead
+ */
+ b->has_debug = 1;
+ b->debug.filename = fd->filename;
+ b->debug.line_num = fd->line_num;
+
+ //DynBuf pc2line;
+ //compute_pc2line_info(fd, &pc2line);
+ //js_free(ctx, fd->line_number_slots)
+ b->debug.pc2line_buf = js_realloc(ctx, fd->pc2line.buf, fd->pc2line.size);
+ if (!b->debug.pc2line_buf)
+ b->debug.pc2line_buf = fd->pc2line.buf;
+ b->debug.pc2line_len = fd->pc2line.size;
+ b->debug.source = fd->source;
+ b->debug.source_len = fd->source_len;
+ }
+ if (fd->scopes != fd->def_scope_array)
+ js_free(ctx, fd->scopes);
+
+ b->closure_var_count = fd->closure_var_count;
+ if (b->closure_var_count) {
+ b->closure_var = (void *)((uint8_t*)b + closure_var_offset);
+ memcpy(b->closure_var, fd->closure_var, b->closure_var_count * sizeof(*b->closure_var));
+ }
+ js_free(ctx, fd->closure_var);
+ fd->closure_var = NULL;
+
+ b->has_prototype = fd->has_prototype;
+ b->has_simple_parameter_list = fd->has_simple_parameter_list;
+ b->js_mode = fd->js_mode;
+ b->is_derived_class_constructor = fd->is_derived_class_constructor;
+ b->func_kind = fd->func_kind;
+ b->need_home_object = (fd->home_object_var_idx >= 0 ||
+ fd->need_home_object);
+ b->new_target_allowed = fd->new_target_allowed;
+ b->super_call_allowed = fd->super_call_allowed;
+ b->super_allowed = fd->super_allowed;
+ b->arguments_allowed = fd->arguments_allowed;
+ b->backtrace_barrier = fd->backtrace_barrier;
+ b->is_direct_or_indirect_eval = (fd->eval_type == JS_EVAL_TYPE_DIRECT ||
+ fd->eval_type == JS_EVAL_TYPE_INDIRECT);
+ b->realm = JS_DupContext(ctx);
+
+ add_gc_object(ctx->rt, &b->header, JS_GC_OBJ_TYPE_FUNCTION_BYTECODE);
+
+#if defined(DUMP_BYTECODE) && (DUMP_BYTECODE & 1)
+ if (!(fd->js_mode & JS_MODE_STRIP)) {
+ js_dump_function_bytecode(ctx, b);
+ }
+#endif
+
+ if (fd->parent) {
+ /* remove from parent list */
+ list_del(&fd->link);
+ }
+
+ js_free(ctx, fd);
+ return JS_MKPTR(JS_TAG_FUNCTION_BYTECODE, b);
+ fail:
+ js_free_function_def(ctx, fd);
+ return JS_EXCEPTION;
+}
+
+static void free_function_bytecode(JSRuntime *rt, JSFunctionBytecode *b)
+{
+ int i;
+
+#if 0
+ {
+ char buf[ATOM_GET_STR_BUF_SIZE];
+ printf("freeing %s\n",
+ JS_AtomGetStrRT(rt, buf, sizeof(buf), b->func_name));
+ }
+#endif
+ free_bytecode_atoms(rt, b->byte_code_buf, b->byte_code_len, TRUE);
+
+ if (b->vardefs) {
+ for(i = 0; i < b->arg_count + b->var_count; i++) {
+ JS_FreeAtomRT(rt, b->vardefs[i].var_name);
+ }
+ }
+ for(i = 0; i < b->cpool_count; i++)
+ JS_FreeValueRT(rt, b->cpool[i]);
+
+ for(i = 0; i < b->closure_var_count; i++) {
+ JSClosureVar *cv = &b->closure_var[i];
+ JS_FreeAtomRT(rt, cv->var_name);
+ }
+ if (b->realm)
+ JS_FreeContext(b->realm);
+
+ JS_FreeAtomRT(rt, b->func_name);
+ if (b->has_debug) {
+ JS_FreeAtomRT(rt, b->debug.filename);
+ js_free_rt(rt, b->debug.pc2line_buf);
+ js_free_rt(rt, b->debug.source);
+ }
+
+ remove_gc_object(&b->header);
+ if (rt->gc_phase == JS_GC_PHASE_REMOVE_CYCLES && b->header.ref_count != 0) {
+ list_add_tail(&b->header.link, &rt->gc_zero_ref_count_list);
+ } else {
+ js_free_rt(rt, b);
+ }
+}
+
+static __exception int js_parse_directives(JSParseState *s)
+{
+ char str[20];
+ JSParsePos pos;
+ BOOL has_semi;
+
+ if (s->token.val != TOK_STRING)
+ return 0;
+
+ js_parse_get_pos(s, &pos);
+
+ while(s->token.val == TOK_STRING) {
+ /* Copy actual source string representation */
+ snprintf(str, sizeof str, "%.*s",
+ (int)(s->buf_ptr - s->token.ptr - 2), s->token.ptr + 1);
+
+ if (next_token(s))
+ return -1;
+
+ has_semi = FALSE;
+ switch (s->token.val) {
+ case ';':
+ if (next_token(s))
+ return -1;
+ has_semi = TRUE;
+ break;
+ case '}':
+ case TOK_EOF:
+ has_semi = TRUE;
+ break;
+ case TOK_NUMBER:
+ case TOK_STRING:
+ case TOK_TEMPLATE:
+ case TOK_IDENT:
+ case TOK_REGEXP:
+ case TOK_DEC:
+ case TOK_INC:
+ case TOK_NULL:
+ case TOK_FALSE:
+ case TOK_TRUE:
+ case TOK_IF:
+ case TOK_RETURN:
+ case TOK_VAR:
+ case TOK_THIS:
+ case TOK_DELETE:
+ case TOK_TYPEOF:
+ case TOK_NEW:
+ case TOK_DO:
+ case TOK_WHILE:
+ case TOK_FOR:
+ case TOK_SWITCH:
+ case TOK_THROW:
+ case TOK_TRY:
+ case TOK_FUNCTION:
+ case TOK_DEBUGGER:
+ case TOK_WITH:
+ case TOK_CLASS:
+ case TOK_CONST:
+ case TOK_ENUM:
+ case TOK_EXPORT:
+ case TOK_IMPORT:
+ case TOK_SUPER:
+ case TOK_INTERFACE:
+ case TOK_LET:
+ case TOK_PACKAGE:
+ case TOK_PRIVATE:
+ case TOK_PROTECTED:
+ case TOK_PUBLIC:
+ case TOK_STATIC:
+ /* automatic insertion of ';' */
+ if (s->got_lf)
+ has_semi = TRUE;
+ break;
+ default:
+ break;
+ }
+ if (!has_semi)
+ break;
+ if (!strcmp(str, "use strict")) {
+ s->cur_func->has_use_strict = TRUE;
+ s->cur_func->js_mode |= JS_MODE_STRICT;
+ }
+#if !defined(DUMP_BYTECODE) || !(DUMP_BYTECODE & 8)
+ else if (!strcmp(str, "use strip")) {
+ s->cur_func->js_mode |= JS_MODE_STRIP;
+ }
+#endif
+#ifdef CONFIG_BIGNUM
+ else if (s->ctx->bignum_ext && !strcmp(str, "use math")) {
+ s->cur_func->js_mode |= JS_MODE_MATH;
+ }
+#endif
+ }
+ return js_parse_seek_token(s, &pos);
+}
+
+static int js_parse_function_check_names(JSParseState *s, JSFunctionDef *fd,
+ JSAtom func_name)
+{
+ JSAtom name;
+ int i, idx;
+
+ if (fd->js_mode & JS_MODE_STRICT) {
+ if (!fd->has_simple_parameter_list && fd->has_use_strict) {
+ return js_parse_error(s, "\"use strict\" not allowed in function with default or destructuring parameter");
+ }
+ if (func_name == JS_ATOM_eval || func_name == JS_ATOM_arguments) {
+ return js_parse_error(s, "invalid function name in strict code");
+ }
+ for (idx = 0; idx < fd->arg_count; idx++) {
+ name = fd->args[idx].var_name;
+
+ if (name == JS_ATOM_eval || name == JS_ATOM_arguments) {
+ return js_parse_error(s, "invalid argument name in strict code");
+ }
+ }
+ }
+ /* check async_generator case */
+ if ((fd->js_mode & JS_MODE_STRICT)
+ || !fd->has_simple_parameter_list
+ || (fd->func_type == JS_PARSE_FUNC_METHOD && fd->func_kind == JS_FUNC_ASYNC)
+ || fd->func_type == JS_PARSE_FUNC_ARROW
+ || fd->func_type == JS_PARSE_FUNC_METHOD) {
+ for (idx = 0; idx < fd->arg_count; idx++) {
+ name = fd->args[idx].var_name;
+ if (name != JS_ATOM_NULL) {
+ for (i = 0; i < idx; i++) {
+ if (fd->args[i].var_name == name)
+ goto duplicate;
+ }
+ /* Check if argument name duplicates a destructuring parameter */
+ /* XXX: should have a flag for such variables */
+ for (i = 0; i < fd->var_count; i++) {
+ if (fd->vars[i].var_name == name &&
+ fd->vars[i].scope_level == 0)
+ goto duplicate;
+ }
+ }
+ }
+ }
+ return 0;
+
+duplicate:
+ return js_parse_error(s, "duplicate argument names not allowed in this context");
+}
+
+/* create a function to initialize class fields */
+static JSFunctionDef *js_parse_function_class_fields_init(JSParseState *s)
+{
+ JSFunctionDef *fd;
+
+ fd = js_new_function_def(s->ctx, s->cur_func, FALSE, FALSE,
+ s->filename, 0);
+ if (!fd)
+ return NULL;
+ fd->func_name = JS_ATOM_NULL;
+ fd->has_prototype = FALSE;
+ fd->has_home_object = TRUE;
+
+ fd->has_arguments_binding = FALSE;
+ fd->has_this_binding = TRUE;
+ fd->is_derived_class_constructor = FALSE;
+ fd->new_target_allowed = TRUE;
+ fd->super_call_allowed = FALSE;
+ fd->super_allowed = fd->has_home_object;
+ fd->arguments_allowed = FALSE;
+
+ fd->func_kind = JS_FUNC_NORMAL;
+ fd->func_type = JS_PARSE_FUNC_METHOD;
+ return fd;
+}
+
+/* func_name must be JS_ATOM_NULL for JS_PARSE_FUNC_STATEMENT and
+ JS_PARSE_FUNC_EXPR, JS_PARSE_FUNC_ARROW and JS_PARSE_FUNC_VAR */
+static __exception int js_parse_function_decl2(JSParseState *s,
+ JSParseFunctionEnum func_type,
+ JSFunctionKindEnum func_kind,
+ JSAtom func_name,
+ const uint8_t *ptr,
+ int function_line_num,
+ JSParseExportEnum export_flag,
+ JSFunctionDef **pfd)
+{
+ JSContext *ctx = s->ctx;
+ JSFunctionDef *fd = s->cur_func;
+ BOOL is_expr;
+ int func_idx, lexical_func_idx = -1;
+ BOOL has_opt_arg;
+ BOOL create_func_var = FALSE;
+
+ is_expr = (func_type != JS_PARSE_FUNC_STATEMENT &&
+ func_type != JS_PARSE_FUNC_VAR);
+
+ if (func_type == JS_PARSE_FUNC_STATEMENT ||
+ func_type == JS_PARSE_FUNC_VAR ||
+ func_type == JS_PARSE_FUNC_EXPR) {
+ if (func_kind == JS_FUNC_NORMAL &&
+ token_is_pseudo_keyword(s, JS_ATOM_async) &&
+ peek_token(s, TRUE) != '\n') {
+ if (next_token(s))
+ return -1;
+ func_kind = JS_FUNC_ASYNC;
+ }
+ if (next_token(s))
+ return -1;
+ if (s->token.val == '*') {
+ if (next_token(s))
+ return -1;
+ func_kind |= JS_FUNC_GENERATOR;
+ }
+
+ if (s->token.val == TOK_IDENT) {
+ if (s->token.u.ident.is_reserved ||
+ (s->token.u.ident.atom == JS_ATOM_yield &&
+ func_type == JS_PARSE_FUNC_EXPR &&
+ (func_kind & JS_FUNC_GENERATOR)) ||
+ (s->token.u.ident.atom == JS_ATOM_await &&
+ ((func_type == JS_PARSE_FUNC_EXPR &&
+ (func_kind & JS_FUNC_ASYNC)) ||
+ func_type == JS_PARSE_FUNC_CLASS_STATIC_INIT))) {
+ return js_parse_error_reserved_identifier(s);
+ }
+ }
+ if (s->token.val == TOK_IDENT ||
+ (((s->token.val == TOK_YIELD && !(fd->js_mode & JS_MODE_STRICT)) ||
+ (s->token.val == TOK_AWAIT && !s->is_module)) &&
+ func_type == JS_PARSE_FUNC_EXPR)) {
+ func_name = JS_DupAtom(ctx, s->token.u.ident.atom);
+ if (next_token(s)) {
+ JS_FreeAtom(ctx, func_name);
+ return -1;
+ }
+ } else {
+ if (func_type != JS_PARSE_FUNC_EXPR &&
+ export_flag != JS_PARSE_EXPORT_DEFAULT) {
+ return js_parse_error(s, "function name expected");
+ }
+ }
+ } else if (func_type != JS_PARSE_FUNC_ARROW) {
+ func_name = JS_DupAtom(ctx, func_name);
+ }
+
+ if (fd->is_eval && fd->eval_type == JS_EVAL_TYPE_MODULE &&
+ (func_type == JS_PARSE_FUNC_STATEMENT || func_type == JS_PARSE_FUNC_VAR)) {
+ JSGlobalVar *hf;
+ hf = find_global_var(fd, func_name);
+ /* XXX: should check scope chain */
+ if (hf && hf->scope_level == fd->scope_level) {
+ js_parse_error(s, "invalid redefinition of global identifier in module code");
+ JS_FreeAtom(ctx, func_name);
+ return -1;
+ }
+ }
+
+ if (func_type == JS_PARSE_FUNC_VAR) {
+ if (!(fd->js_mode & JS_MODE_STRICT)
+ && func_kind == JS_FUNC_NORMAL
+ && find_lexical_decl(ctx, fd, func_name, fd->scope_first, FALSE) < 0
+ && !((func_idx = find_var(ctx, fd, func_name)) >= 0 && (func_idx & ARGUMENT_VAR_OFFSET))
+ && !(func_name == JS_ATOM_arguments && fd->has_arguments_binding)) {
+ create_func_var = TRUE;
+ }
+ /* Create the lexical name here so that the function closure
+ contains it */
+ if (fd->is_eval &&
+ (fd->eval_type == JS_EVAL_TYPE_GLOBAL ||
+ fd->eval_type == JS_EVAL_TYPE_MODULE) &&
+ fd->scope_level == fd->body_scope) {
+ /* avoid creating a lexical variable in the global
+ scope. XXX: check annex B */
+ JSGlobalVar *hf;
+ hf = find_global_var(fd, func_name);
+ /* XXX: should check scope chain */
+ if (hf && hf->scope_level == fd->scope_level) {
+ js_parse_error(s, "invalid redefinition of global identifier");
+ JS_FreeAtom(ctx, func_name);
+ return -1;
+ }
+ } else {
+ /* Always create a lexical name, fail if at the same scope as
+ existing name */
+ /* Lexical variable will be initialized upon entering scope */
+ lexical_func_idx = define_var(s, fd, func_name,
+ func_kind != JS_FUNC_NORMAL ?
+ JS_VAR_DEF_NEW_FUNCTION_DECL :
+ JS_VAR_DEF_FUNCTION_DECL);
+ if (lexical_func_idx < 0) {
+ JS_FreeAtom(ctx, func_name);
+ return -1;
+ }
+ }
+ }
+
+ fd = js_new_function_def(ctx, fd, FALSE, is_expr,
+ s->filename, function_line_num);
+ if (!fd) {
+ JS_FreeAtom(ctx, func_name);
+ return -1;
+ }
+ if (pfd)
+ *pfd = fd;
+ s->cur_func = fd;
+ fd->func_name = func_name;
+ /* XXX: test !fd->is_generator is always false */
+ fd->has_prototype = (func_type == JS_PARSE_FUNC_STATEMENT ||
+ func_type == JS_PARSE_FUNC_VAR ||
+ func_type == JS_PARSE_FUNC_EXPR) &&
+ func_kind == JS_FUNC_NORMAL;
+ fd->has_home_object = (func_type == JS_PARSE_FUNC_METHOD ||
+ func_type == JS_PARSE_FUNC_GETTER ||
+ func_type == JS_PARSE_FUNC_SETTER ||
+ func_type == JS_PARSE_FUNC_CLASS_CONSTRUCTOR ||
+ func_type == JS_PARSE_FUNC_DERIVED_CLASS_CONSTRUCTOR);
+ fd->has_arguments_binding = (func_type != JS_PARSE_FUNC_ARROW &&
+ func_type != JS_PARSE_FUNC_CLASS_STATIC_INIT);
+ fd->has_this_binding = fd->has_arguments_binding;
+ fd->is_derived_class_constructor = (func_type == JS_PARSE_FUNC_DERIVED_CLASS_CONSTRUCTOR);
+ if (func_type == JS_PARSE_FUNC_ARROW) {
+ fd->new_target_allowed = fd->parent->new_target_allowed;
+ fd->super_call_allowed = fd->parent->super_call_allowed;
+ fd->super_allowed = fd->parent->super_allowed;
+ fd->arguments_allowed = fd->parent->arguments_allowed;
+ } else if (func_type == JS_PARSE_FUNC_CLASS_STATIC_INIT) {
+ fd->new_target_allowed = TRUE; // although new.target === undefined
+ fd->super_call_allowed = FALSE;
+ fd->super_allowed = TRUE;
+ fd->arguments_allowed = FALSE;
+ } else {
+ fd->new_target_allowed = TRUE;
+ fd->super_call_allowed = fd->is_derived_class_constructor;
+ fd->super_allowed = fd->has_home_object;
+ fd->arguments_allowed = TRUE;
+ }
+
+ /* fd->in_function_body == FALSE prevents yield/await during the parsing
+ of the arguments in generator/async functions. They are parsed as
+ regular identifiers for other function kinds. */
+ fd->func_kind = func_kind;
+ fd->func_type = func_type;
+
+ if (func_type == JS_PARSE_FUNC_CLASS_CONSTRUCTOR ||
+ func_type == JS_PARSE_FUNC_DERIVED_CLASS_CONSTRUCTOR) {
+ /* error if not invoked as a constructor */
+ emit_op(s, OP_check_ctor);
+ }
+
+ if (func_type == JS_PARSE_FUNC_CLASS_CONSTRUCTOR) {
+ emit_class_field_init(s);
+ }
+
+ /* parse arguments */
+ fd->has_simple_parameter_list = TRUE;
+ fd->has_parameter_expressions = FALSE;
+ has_opt_arg = FALSE;
+ if (func_type == JS_PARSE_FUNC_ARROW && s->token.val == TOK_IDENT) {
+ JSAtom name;
+ if (s->token.u.ident.is_reserved) {
+ js_parse_error_reserved_identifier(s);
+ goto fail;
+ }
+ name = s->token.u.ident.atom;
+ if (add_arg(ctx, fd, name) < 0)
+ goto fail;
+ fd->defined_arg_count = 1;
+ } else if (func_type != JS_PARSE_FUNC_CLASS_STATIC_INIT) {
+ if (s->token.val == '(') {
+ int skip_bits;
+ /* if there is an '=' inside the parameter list, we
+ consider there is a parameter expression inside */
+ js_parse_skip_parens_token(s, &skip_bits, FALSE);
+ if (skip_bits & SKIP_HAS_ASSIGNMENT)
+ fd->has_parameter_expressions = TRUE;
+ if (next_token(s))
+ goto fail;
+ } else {
+ if (js_parse_expect(s, '('))
+ goto fail;
+ }
+
+ if (fd->has_parameter_expressions) {
+ fd->scope_level = -1; /* force no parent scope */
+ if (push_scope(s) < 0)
+ return -1;
+ }
+
+ while (s->token.val != ')') {
+ JSAtom name;
+ BOOL rest = FALSE;
+ int idx, has_initializer;
+
+ if (s->token.val == TOK_ELLIPSIS) {
+ fd->has_simple_parameter_list = FALSE;
+ rest = TRUE;
+ if (next_token(s))
+ goto fail;
+ }
+ if (s->token.val == '[' || s->token.val == '{') {
+ fd->has_simple_parameter_list = FALSE;
+ if (rest) {
+ emit_op(s, OP_rest);
+ emit_u16(s, fd->arg_count);
+ } else {
+ /* unnamed arg for destructuring */
+ idx = add_arg(ctx, fd, JS_ATOM_NULL);
+ emit_op(s, OP_get_arg);
+ emit_u16(s, idx);
+ }
+ has_initializer = js_parse_destructuring_element(s, fd->has_parameter_expressions ? TOK_LET : TOK_VAR, 1, TRUE, -1, TRUE);
+ if (has_initializer < 0)
+ goto fail;
+ if (has_initializer)
+ has_opt_arg = TRUE;
+ if (!has_opt_arg)
+ fd->defined_arg_count++;
+ } else if (s->token.val == TOK_IDENT) {
+ if (s->token.u.ident.is_reserved) {
+ js_parse_error_reserved_identifier(s);
+ goto fail;
+ }
+ name = s->token.u.ident.atom;
+ if (name == JS_ATOM_yield && fd->func_kind == JS_FUNC_GENERATOR) {
+ js_parse_error_reserved_identifier(s);
+ goto fail;
+ }
+ if (fd->has_parameter_expressions) {
+ if (js_parse_check_duplicate_parameter(s, name))
+ goto fail;
+ if (define_var(s, fd, name, JS_VAR_DEF_LET) < 0)
+ goto fail;
+ }
+ /* XXX: could avoid allocating an argument if rest is true */
+ idx = add_arg(ctx, fd, name);
+ if (idx < 0)
+ goto fail;
+ if (next_token(s))
+ goto fail;
+ if (rest) {
+ emit_op(s, OP_rest);
+ emit_u16(s, idx);
+ if (fd->has_parameter_expressions) {
+ emit_op(s, OP_dup);
+ emit_op(s, OP_scope_put_var_init);
+ emit_atom(s, name);
+ emit_u16(s, fd->scope_level);
+ }
+ emit_op(s, OP_put_arg);
+ emit_u16(s, idx);
+ fd->has_simple_parameter_list = FALSE;
+ has_opt_arg = TRUE;
+ } else if (s->token.val == '=') {
+ int label;
+
+ fd->has_simple_parameter_list = FALSE;
+ has_opt_arg = TRUE;
+
+ if (next_token(s))
+ goto fail;
+
+ label = new_label(s);
+ emit_op(s, OP_get_arg);
+ emit_u16(s, idx);
+ emit_op(s, OP_dup);
+ emit_op(s, OP_undefined);
+ emit_op(s, OP_strict_eq);
+ emit_goto(s, OP_if_false, label);
+ emit_op(s, OP_drop);
+ if (js_parse_assign_expr(s))
+ goto fail;
+ set_object_name(s, name);
+ emit_op(s, OP_dup);
+ emit_op(s, OP_put_arg);
+ emit_u16(s, idx);
+ emit_label(s, label);
+ emit_op(s, OP_scope_put_var_init);
+ emit_atom(s, name);
+ emit_u16(s, fd->scope_level);
+ } else {
+ if (!has_opt_arg) {
+ fd->defined_arg_count++;
+ }
+ if (fd->has_parameter_expressions) {
+ /* copy the argument to the argument scope */
+ emit_op(s, OP_get_arg);
+ emit_u16(s, idx);
+ emit_op(s, OP_scope_put_var_init);
+ emit_atom(s, name);
+ emit_u16(s, fd->scope_level);
+ }
+ }
+ } else {
+ js_parse_error(s, "missing formal parameter");
+ goto fail;
+ }
+ if (rest && s->token.val != ')') {
+ js_parse_expect(s, ')');
+ goto fail;
+ }
+ if (s->token.val == ')')
+ break;
+ if (js_parse_expect(s, ','))
+ goto fail;
+ }
+ if ((func_type == JS_PARSE_FUNC_GETTER && fd->arg_count != 0) ||
+ (func_type == JS_PARSE_FUNC_SETTER && fd->arg_count != 1)) {
+ js_parse_error(s, "invalid number of arguments for getter or setter");
+ goto fail;
+ }
+ }
+
+ if (fd->has_parameter_expressions) {
+ int idx;
+
+ /* Copy the variables in the argument scope to the variable
+ scope (see FunctionDeclarationInstantiation() in spec). The
+ normal arguments are already present, so no need to copy
+ them. */
+ idx = fd->scopes[fd->scope_level].first;
+ while (idx >= 0) {
+ JSVarDef *vd = &fd->vars[idx];
+ if (vd->scope_level != fd->scope_level)
+ break;
+ if (find_var(ctx, fd, vd->var_name) < 0) {
+ if (add_var(ctx, fd, vd->var_name) < 0)
+ goto fail;
+ vd = &fd->vars[idx]; /* fd->vars may have been reallocated */
+ emit_op(s, OP_scope_get_var);
+ emit_atom(s, vd->var_name);
+ emit_u16(s, fd->scope_level);
+ emit_op(s, OP_scope_put_var);
+ emit_atom(s, vd->var_name);
+ emit_u16(s, 0);
+ }
+ idx = vd->scope_next;
+ }
+
+ /* the argument scope has no parent, hence we don't use pop_scope(s) */
+ emit_op(s, OP_leave_scope);
+ emit_u16(s, fd->scope_level);
+
+ /* set the variable scope as the current scope */
+ fd->scope_level = 0;
+ fd->scope_first = fd->scopes[fd->scope_level].first;
+ }
+
+ if (next_token(s))
+ goto fail;
+
+ /* generator function: yield after the parameters are evaluated */
+ if (func_kind == JS_FUNC_GENERATOR ||
+ func_kind == JS_FUNC_ASYNC_GENERATOR)
+ emit_op(s, OP_initial_yield);
+
+ /* in generators, yield expression is forbidden during the parsing
+ of the arguments */
+ fd->in_function_body = TRUE;
+ push_scope(s); /* enter body scope */
+ fd->body_scope = fd->scope_level;
+
+ if (s->token.val == TOK_ARROW) {
+ if (next_token(s))
+ goto fail;
+
+ if (s->token.val != '{') {
+ if (js_parse_function_check_names(s, fd, func_name))
+ goto fail;
+
+ if (js_parse_assign_expr(s))
+ goto fail;
+
+ if (func_kind != JS_FUNC_NORMAL)
+ emit_op(s, OP_return_async);
+ else
+ emit_op(s, OP_return);
+
+ if (!(fd->js_mode & JS_MODE_STRIP)) {
+ /* save the function source code */
+ /* the end of the function source code is after the last
+ token of the function source stored into s->last_ptr */
+ fd->source_len = s->last_ptr - ptr;
+ fd->source = js_strndup(ctx, (const char *)ptr, fd->source_len);
+ if (!fd->source)
+ goto fail;
+ }
+ goto done;
+ }
+ }
+
+ if (func_type != JS_PARSE_FUNC_CLASS_STATIC_INIT) {
+ if (js_parse_expect(s, '{'))
+ goto fail;
+ }
+
+ if (js_parse_directives(s))
+ goto fail;
+
+ /* in strict_mode, check function and argument names */
+ if (js_parse_function_check_names(s, fd, func_name))
+ goto fail;
+
+ while (s->token.val != '}') {
+ if (js_parse_source_element(s))
+ goto fail;
+ }
+ if (!(fd->js_mode & JS_MODE_STRIP)) {
+ /* save the function source code */
+ fd->source_len = s->buf_ptr - ptr;
+ fd->source = js_strndup(ctx, (const char *)ptr, fd->source_len);
+ if (!fd->source)
+ goto fail;
+ }
+
+ if (next_token(s)) {
+ /* consume the '}' */
+ goto fail;
+ }
+
+ /* in case there is no return, add one */
+ if (js_is_live_code(s)) {
+ emit_return(s, FALSE);
+ }
+ done:
+ s->cur_func = fd->parent;
+
+ /* Reparse identifiers after the function is terminated so that
+ the token is parsed in the englobing function. It could be done
+ by just using next_token() here for normal functions, but it is
+ necessary for arrow functions with an expression body. */
+ reparse_ident_token(s);
+
+ /* create the function object */
+ {
+ int idx;
+ JSAtom func_name = fd->func_name;
+
+ /* the real object will be set at the end of the compilation */
+ idx = cpool_add(s, JS_NULL);
+ fd->parent_cpool_idx = idx;
+
+ if (is_expr) {
+ /* for constructors, no code needs to be generated here */
+ if (func_type != JS_PARSE_FUNC_CLASS_CONSTRUCTOR &&
+ func_type != JS_PARSE_FUNC_DERIVED_CLASS_CONSTRUCTOR) {
+ /* OP_fclosure creates the function object from the bytecode
+ and adds the scope information */
+ emit_op(s, OP_fclosure);
+ emit_u32(s, idx);
+ if (func_name == JS_ATOM_NULL) {
+ emit_op(s, OP_set_name);
+ emit_u32(s, JS_ATOM_NULL);
+ }
+ }
+ } else if (func_type == JS_PARSE_FUNC_VAR) {
+ emit_op(s, OP_fclosure);
+ emit_u32(s, idx);
+ if (create_func_var) {
+ if (s->cur_func->is_global_var) {
+ JSGlobalVar *hf;
+ /* the global variable must be defined at the start of the
+ function */
+ hf = add_global_var(ctx, s->cur_func, func_name);
+ if (!hf)
+ goto fail;
+ /* it is considered as defined at the top level
+ (needed for annex B.3.3.4 and B.3.3.5
+ checks) */
+ hf->scope_level = 0;
+ hf->force_init = ((s->cur_func->js_mode & JS_MODE_STRICT) != 0);
+ /* store directly into global var, bypass lexical scope */
+ emit_op(s, OP_dup);
+ emit_op(s, OP_scope_put_var);
+ emit_atom(s, func_name);
+ emit_u16(s, 0);
+ } else {
+ /* do not call define_var to bypass lexical scope check */
+ func_idx = find_var(ctx, s->cur_func, func_name);
+ if (func_idx < 0) {
+ func_idx = add_var(ctx, s->cur_func, func_name);
+ if (func_idx < 0)
+ goto fail;
+ }
+ /* store directly into local var, bypass lexical catch scope */
+ emit_op(s, OP_dup);
+ emit_op(s, OP_scope_put_var);
+ emit_atom(s, func_name);
+ emit_u16(s, 0);
+ }
+ }
+ if (lexical_func_idx >= 0) {
+ /* lexical variable will be initialized upon entering scope */
+ s->cur_func->vars[lexical_func_idx].func_pool_idx = idx;
+ emit_op(s, OP_drop);
+ } else {
+ /* store function object into its lexical name */
+ /* XXX: could use OP_put_loc directly */
+ emit_op(s, OP_scope_put_var_init);
+ emit_atom(s, func_name);
+ emit_u16(s, s->cur_func->scope_level);
+ }
+ } else {
+ if (!s->cur_func->is_global_var) {
+ int var_idx = define_var(s, s->cur_func, func_name, JS_VAR_DEF_VAR);
+
+ if (var_idx < 0)
+ goto fail;
+ /* the variable will be assigned at the top of the function */
+ if (var_idx & ARGUMENT_VAR_OFFSET) {
+ s->cur_func->args[var_idx - ARGUMENT_VAR_OFFSET].func_pool_idx = idx;
+ } else {
+ s->cur_func->vars[var_idx].func_pool_idx = idx;
+ }
+ } else {
+ JSAtom func_var_name;
+ JSGlobalVar *hf;
+ if (func_name == JS_ATOM_NULL)
+ func_var_name = JS_ATOM__default_; /* export default */
+ else
+ func_var_name = func_name;
+ /* the variable will be assigned at the top of the function */
+ hf = add_global_var(ctx, s->cur_func, func_var_name);
+ if (!hf)
+ goto fail;
+ hf->cpool_idx = idx;
+ if (export_flag != JS_PARSE_EXPORT_NONE) {
+ if (!add_export_entry(s, s->cur_func->module, func_var_name,
+ export_flag == JS_PARSE_EXPORT_NAMED ? func_var_name : JS_ATOM_default, JS_EXPORT_TYPE_LOCAL))
+ goto fail;
+ }
+ }
+ }
+ }
+ return 0;
+ fail:
+ s->cur_func = fd->parent;
+ js_free_function_def(ctx, fd);
+ if (pfd)
+ *pfd = NULL;
+ return -1;
+}
+
+static __exception int js_parse_function_decl(JSParseState *s,
+ JSParseFunctionEnum func_type,
+ JSFunctionKindEnum func_kind,
+ JSAtom func_name,
+ const uint8_t *ptr,
+ int function_line_num)
+{
+ return js_parse_function_decl2(s, func_type, func_kind, func_name, ptr,
+ function_line_num, JS_PARSE_EXPORT_NONE,
+ NULL);
+}
+
+static __exception int js_parse_program(JSParseState *s)
+{
+ JSFunctionDef *fd = s->cur_func;
+ int idx;
+
+ if (next_token(s))
+ return -1;
+
+ if (js_parse_directives(s))
+ return -1;
+
+ fd->is_global_var = (fd->eval_type == JS_EVAL_TYPE_GLOBAL) ||
+ (fd->eval_type == JS_EVAL_TYPE_MODULE) ||
+ !(fd->js_mode & JS_MODE_STRICT);
+
+ if (!s->is_module) {
+ /* hidden variable for the return value */
+ fd->eval_ret_idx = idx = add_var(s->ctx, fd, JS_ATOM__ret_);
+ if (idx < 0)
+ return -1;
+ }
+
+ while (s->token.val != TOK_EOF) {
+ if (js_parse_source_element(s))
+ return -1;
+ }
+
+ if (!s->is_module) {
+ /* return the value of the hidden variable eval_ret_idx */
+ if (fd->func_kind == JS_FUNC_ASYNC) {
+ /* wrap the return value in an object so that promises can
+ be safely returned */
+ emit_op(s, OP_object);
+ emit_op(s, OP_dup);
+
+ emit_op(s, OP_get_loc);
+ emit_u16(s, fd->eval_ret_idx);
+
+ emit_op(s, OP_put_field);
+ emit_atom(s, JS_ATOM_value);
+ } else {
+ emit_op(s, OP_get_loc);
+ emit_u16(s, fd->eval_ret_idx);
+ }
+ emit_return(s, TRUE);
+ } else {
+ emit_return(s, FALSE);
+ }
+
+ return 0;
+}
+
+static void js_parse_init(JSContext *ctx, JSParseState *s,
+ const char *input, size_t input_len,
+ const char *filename)
+{
+ memset(s, 0, sizeof(*s));
+ s->ctx = ctx;
+ s->filename = filename;
+ s->line_num = 1;
+ s->buf_ptr = (const uint8_t *)input;
+ s->buf_end = s->buf_ptr + input_len;
+ s->token.val = ' ';
+ s->token.line_num = 1;
+}
+
+static JSValue JS_EvalFunctionInternal(JSContext *ctx, JSValue fun_obj,
+ JSValueConst this_obj,
+ JSVarRef **var_refs, JSStackFrame *sf)
+{
+ JSValue ret_val;
+ uint32_t tag;
+
+ tag = JS_VALUE_GET_TAG(fun_obj);
+ if (tag == JS_TAG_FUNCTION_BYTECODE) {
+ fun_obj = js_closure(ctx, fun_obj, var_refs, sf);
+ ret_val = JS_CallFree(ctx, fun_obj, this_obj, 0, NULL);
+ } else if (tag == JS_TAG_MODULE) {
+ JSModuleDef *m;
+ m = JS_VALUE_GET_PTR(fun_obj);
+ /* the module refcount should be >= 2 */
+ JS_FreeValue(ctx, fun_obj);
+ if (js_create_module_function(ctx, m) < 0)
+ goto fail;
+ if (js_link_module(ctx, m) < 0)
+ goto fail;
+ ret_val = js_evaluate_module(ctx, m);
+ if (JS_IsException(ret_val)) {
+ fail:
+ return JS_EXCEPTION;
+ }
+ } else {
+ JS_FreeValue(ctx, fun_obj);
+ ret_val = JS_ThrowTypeError(ctx, "bytecode function expected");
+ }
+ return ret_val;
+}
+
+JSValue JS_EvalFunction(JSContext *ctx, JSValue fun_obj)
+{
+ return JS_EvalFunctionInternal(ctx, fun_obj, ctx->global_obj, NULL, NULL);
+}
+
+/* 'input' must be zero terminated i.e. input[input_len] = '\0'. */
+static JSValue __JS_EvalInternal(JSContext *ctx, JSValueConst this_obj,
+ const char *input, size_t input_len,
+ const char *filename, int flags, int scope_idx)
+{
+ JSParseState s1, *s = &s1;
+ int err, js_mode, eval_type;
+ JSValue fun_obj, ret_val;
+ JSStackFrame *sf;
+ JSVarRef **var_refs;
+ JSFunctionBytecode *b;
+ JSFunctionDef *fd;
+ JSModuleDef *m;
+
+ js_parse_init(ctx, s, input, input_len, filename);
+ skip_shebang(&s->buf_ptr, s->buf_end);
+
+ eval_type = flags & JS_EVAL_TYPE_MASK;
+ m = NULL;
+ if (eval_type == JS_EVAL_TYPE_DIRECT) {
+ JSObject *p;
+ sf = ctx->rt->current_stack_frame;
+ assert(sf != NULL);
+ assert(JS_VALUE_GET_TAG(sf->cur_func) == JS_TAG_OBJECT);
+ p = JS_VALUE_GET_OBJ(sf->cur_func);
+ assert(js_class_has_bytecode(p->class_id));
+ b = p->u.func.function_bytecode;
+ var_refs = p->u.func.var_refs;
+ js_mode = b->js_mode;
+ } else {
+ sf = NULL;
+ b = NULL;
+ var_refs = NULL;
+ js_mode = 0;
+ if (flags & JS_EVAL_FLAG_STRICT)
+ js_mode |= JS_MODE_STRICT;
+ if (flags & JS_EVAL_FLAG_STRIP)
+ js_mode |= JS_MODE_STRIP;
+ if (eval_type == JS_EVAL_TYPE_MODULE) {
+ JSAtom module_name = JS_NewAtom(ctx, filename);
+ if (module_name == JS_ATOM_NULL)
+ return JS_EXCEPTION;
+ m = js_new_module_def(ctx, module_name);
+ if (!m)
+ return JS_EXCEPTION;
+ js_mode |= JS_MODE_STRICT;
+ }
+ }
+ fd = js_new_function_def(ctx, NULL, TRUE, FALSE, filename, 1);
+ if (!fd)
+ goto fail1;
+ s->cur_func = fd;
+ fd->eval_type = eval_type;
+ fd->has_this_binding = (eval_type != JS_EVAL_TYPE_DIRECT);
+ fd->backtrace_barrier = ((flags & JS_EVAL_FLAG_BACKTRACE_BARRIER) != 0);
+ if (eval_type == JS_EVAL_TYPE_DIRECT) {
+ fd->new_target_allowed = b->new_target_allowed;
+ fd->super_call_allowed = b->super_call_allowed;
+ fd->super_allowed = b->super_allowed;
+ fd->arguments_allowed = b->arguments_allowed;
+ } else {
+ fd->new_target_allowed = FALSE;
+ fd->super_call_allowed = FALSE;
+ fd->super_allowed = FALSE;
+ fd->arguments_allowed = TRUE;
+ }
+ fd->js_mode = js_mode;
+ fd->func_name = JS_DupAtom(ctx, JS_ATOM__eval_);
+ if (b) {
+ if (add_closure_variables(ctx, fd, b, scope_idx))
+ goto fail;
+ }
+ fd->module = m;
+ if (m != NULL || (flags & JS_EVAL_FLAG_ASYNC)) {
+ fd->in_function_body = TRUE;
+ fd->func_kind = JS_FUNC_ASYNC;
+ }
+ s->is_module = (m != NULL);
+ s->allow_html_comments = !s->is_module;
+
+ push_scope(s); /* body scope */
+ fd->body_scope = fd->scope_level;
+
+ err = js_parse_program(s);
+ if (err) {
+ fail:
+ free_token(s, &s->token);
+ js_free_function_def(ctx, fd);
+ goto fail1;
+ }
+
+ if (m != NULL)
+ m->has_tla = fd->has_await;
+
+ /* create the function object and all the enclosed functions */
+ fun_obj = js_create_function(ctx, fd);
+ if (JS_IsException(fun_obj))
+ goto fail1;
+ /* Could add a flag to avoid resolution if necessary */
+ if (m) {
+ m->func_obj = fun_obj;
+ if (js_resolve_module(ctx, m) < 0)
+ goto fail1;
+ fun_obj = JS_NewModuleValue(ctx, m);
+ }
+ if (flags & JS_EVAL_FLAG_COMPILE_ONLY) {
+ ret_val = fun_obj;
+ } else {
+ ret_val = JS_EvalFunctionInternal(ctx, fun_obj, this_obj, var_refs, sf);
+ }
+ return ret_val;
+ fail1:
+ /* XXX: should free all the unresolved dependencies */
+ if (m)
+ js_free_module_def(ctx, m);
+ return JS_EXCEPTION;
+}
+
+/* the indirection is needed to make 'eval' optional */
+static JSValue JS_EvalInternal(JSContext *ctx, JSValueConst this_obj,
+ const char *input, size_t input_len,
+ const char *filename, int flags, int scope_idx)
+{
+ if (unlikely(!ctx->eval_internal)) {
+ return JS_ThrowTypeError(ctx, "eval is not supported");
+ }
+ return ctx->eval_internal(ctx, this_obj, input, input_len, filename,
+ flags, scope_idx);
+}
+
+static JSValue JS_EvalObject(JSContext *ctx, JSValueConst this_obj,
+ JSValueConst val, int flags, int scope_idx)
+{
+ JSValue ret;
+ const char *str;
+ size_t len;
+
+ if (!JS_IsString(val))
+ return JS_DupValue(ctx, val);
+ str = JS_ToCStringLen(ctx, &len, val);
+ if (!str)
+ return JS_EXCEPTION;
+ ret = JS_EvalInternal(ctx, this_obj, str, len, "<input>", flags, scope_idx);
+ JS_FreeCString(ctx, str);
+ return ret;
+
+}
+
+JSValue JS_EvalThis(JSContext *ctx, JSValueConst this_obj,
+ const char *input, size_t input_len,
+ const char *filename, int eval_flags)
+{
+ int eval_type = eval_flags & JS_EVAL_TYPE_MASK;
+ JSValue ret;
+
+ assert(eval_type == JS_EVAL_TYPE_GLOBAL ||
+ eval_type == JS_EVAL_TYPE_MODULE);
+ ret = JS_EvalInternal(ctx, this_obj, input, input_len, filename,
+ eval_flags, -1);
+ return ret;
+}
+
+JSValue JS_Eval(JSContext *ctx, const char *input, size_t input_len,
+ const char *filename, int eval_flags)
+{
+ return JS_EvalThis(ctx, ctx->global_obj, input, input_len, filename,
+ eval_flags);
+}
+
+int JS_ResolveModule(JSContext *ctx, JSValueConst obj)
+{
+ if (JS_VALUE_GET_TAG(obj) == JS_TAG_MODULE) {
+ JSModuleDef *m = JS_VALUE_GET_PTR(obj);
+ if (js_resolve_module(ctx, m) < 0) {
+ js_free_modules(ctx, JS_FREE_MODULE_NOT_RESOLVED);
+ return -1;
+ }
+ }
+ return 0;
+}
+
+/*******************************************************************/
+/* object list */
+
+typedef struct {
+ JSObject *obj;
+ uint32_t hash_next; /* -1 if no next entry */
+} JSObjectListEntry;
+
+/* XXX: reuse it to optimize weak references */
+typedef struct {
+ JSObjectListEntry *object_tab;
+ int object_count;
+ int object_size;
+ uint32_t *hash_table;
+ uint32_t hash_size;
+} JSObjectList;
+
+static void js_object_list_init(JSObjectList *s)
+{
+ memset(s, 0, sizeof(*s));
+}
+
+static uint32_t js_object_list_get_hash(JSObject *p, uint32_t hash_size)
+{
+ return ((uintptr_t)p * 3163) & (hash_size - 1);
+}
+
+static int js_object_list_resize_hash(JSContext *ctx, JSObjectList *s,
+ uint32_t new_hash_size)
+{
+ JSObjectListEntry *e;
+ uint32_t i, h, *new_hash_table;
+
+ new_hash_table = js_malloc(ctx, sizeof(new_hash_table[0]) * new_hash_size);
+ if (!new_hash_table)
+ return -1;
+ js_free(ctx, s->hash_table);
+ s->hash_table = new_hash_table;
+ s->hash_size = new_hash_size;
+
+ for(i = 0; i < s->hash_size; i++) {
+ s->hash_table[i] = -1;
+ }
+ for(i = 0; i < s->object_count; i++) {
+ e = &s->object_tab[i];
+ h = js_object_list_get_hash(e->obj, s->hash_size);
+ e->hash_next = s->hash_table[h];
+ s->hash_table[h] = i;
+ }
+ return 0;
+}
+
+/* the reference count of 'obj' is not modified. Return 0 if OK, -1 if
+ memory error */
+static int js_object_list_add(JSContext *ctx, JSObjectList *s, JSObject *obj)
+{
+ JSObjectListEntry *e;
+ uint32_t h, new_hash_size;
+
+ if (js_resize_array(ctx, (void *)&s->object_tab,
+ sizeof(s->object_tab[0]),
+ &s->object_size, s->object_count + 1))
+ return -1;
+ if (unlikely((s->object_count + 1) >= s->hash_size)) {
+ new_hash_size = max_uint32(s->hash_size, 4);
+ while (new_hash_size <= s->object_count)
+ new_hash_size *= 2;
+ if (js_object_list_resize_hash(ctx, s, new_hash_size))
+ return -1;
+ }
+ e = &s->object_tab[s->object_count++];
+ h = js_object_list_get_hash(obj, s->hash_size);
+ e->obj = obj;
+ e->hash_next = s->hash_table[h];
+ s->hash_table[h] = s->object_count - 1;
+ return 0;
+}
+
+/* return -1 if not present or the object index */
+static int js_object_list_find(JSContext *ctx, JSObjectList *s, JSObject *obj)
+{
+ JSObjectListEntry *e;
+ uint32_t h, p;
+
+ /* must test empty size because there is no hash table */
+ if (s->object_count == 0)
+ return -1;
+ h = js_object_list_get_hash(obj, s->hash_size);
+ p = s->hash_table[h];
+ while (p != -1) {
+ e = &s->object_tab[p];
+ if (e->obj == obj)
+ return p;
+ p = e->hash_next;
+ }
+ return -1;
+}
+
+static void js_object_list_end(JSContext *ctx, JSObjectList *s)
+{
+ js_free(ctx, s->object_tab);
+ js_free(ctx, s->hash_table);
+}
+
+/*******************************************************************/
+/* binary object writer & reader */
+
+typedef enum BCTagEnum {
+ BC_TAG_NULL = 1,
+ BC_TAG_UNDEFINED,
+ BC_TAG_BOOL_FALSE,
+ BC_TAG_BOOL_TRUE,
+ BC_TAG_INT32,
+ BC_TAG_FLOAT64,
+ BC_TAG_STRING,
+ BC_TAG_OBJECT,
+ BC_TAG_ARRAY,
+ BC_TAG_BIG_INT,
+ BC_TAG_TEMPLATE_OBJECT,
+ BC_TAG_FUNCTION_BYTECODE,
+ BC_TAG_MODULE,
+ BC_TAG_TYPED_ARRAY,
+ BC_TAG_ARRAY_BUFFER,
+ BC_TAG_SHARED_ARRAY_BUFFER,
+ BC_TAG_DATE,
+ BC_TAG_OBJECT_VALUE,
+ BC_TAG_OBJECT_REFERENCE,
+#ifdef CONFIG_BIGNUM
+ BC_TAG_BIG_FLOAT,
+ BC_TAG_BIG_DECIMAL,
+#endif
+} BCTagEnum;
+
+#ifdef CONFIG_BIGNUM
+#define BC_VERSION 0x43
+#else
+#define BC_VERSION 3
+#endif
+
+typedef struct BCWriterState {
+ JSContext *ctx;
+ DynBuf dbuf;
+ BOOL allow_bytecode : 8;
+ BOOL allow_sab : 8;
+ BOOL allow_reference : 8;
+ uint32_t first_atom;
+ uint32_t *atom_to_idx;
+ int atom_to_idx_size;
+ JSAtom *idx_to_atom;
+ int idx_to_atom_count;
+ int idx_to_atom_size;
+ uint8_t **sab_tab;
+ int sab_tab_len;
+ int sab_tab_size;
+ /* list of referenced objects (used if allow_reference = TRUE) */
+ JSObjectList object_list;
+} BCWriterState;
+
+#ifdef DUMP_READ_OBJECT
+static const char * const bc_tag_str[] = {
+ "invalid",
+ "null",
+ "undefined",
+ "false",
+ "true",
+ "int32",
+ "float64",
+ "string",
+ "object",
+ "array",
+ "bigint",
+ "template",
+ "function",
+ "module",
+ "TypedArray",
+ "ArrayBuffer",
+ "SharedArrayBuffer",
+ "Date",
+ "ObjectValue",
+ "ObjectReference",
+#ifdef CONFIG_BIGNUM
+ "bigfloat",
+ "bigdecimal",
+#endif
+};
+#endif
+
+static inline BOOL is_be(void)
+{
+ union {
+ uint16_t a;
+ uint8_t b;
+ } u = {0x100};
+ return u.b;
+}
+
+static void bc_put_u8(BCWriterState *s, uint8_t v)
+{
+ dbuf_putc(&s->dbuf, v);
+}
+
+static void bc_put_u16(BCWriterState *s, uint16_t v)
+{
+ if (is_be())
+ v = bswap16(v);
+ dbuf_put_u16(&s->dbuf, v);
+}
+
+static __maybe_unused void bc_put_u32(BCWriterState *s, uint32_t v)
+{
+ if (is_be())
+ v = bswap32(v);
+ dbuf_put_u32(&s->dbuf, v);
+}
+
+static void bc_put_u64(BCWriterState *s, uint64_t v)
+{
+ if (is_be())
+ v = bswap64(v);
+ dbuf_put(&s->dbuf, (uint8_t *)&v, sizeof(v));
+}
+
+static void bc_put_leb128(BCWriterState *s, uint32_t v)
+{
+ dbuf_put_leb128(&s->dbuf, v);
+}
+
+static void bc_put_sleb128(BCWriterState *s, int32_t v)
+{
+ dbuf_put_sleb128(&s->dbuf, v);
+}
+
+static void bc_set_flags(uint32_t *pflags, int *pidx, uint32_t val, int n)
+{
+ *pflags = *pflags | (val << *pidx);
+ *pidx += n;
+}
+
+static int bc_atom_to_idx(BCWriterState *s, uint32_t *pres, JSAtom atom)
+{
+ uint32_t v;
+
+ if (atom < s->first_atom || __JS_AtomIsTaggedInt(atom)) {
+ *pres = atom;
+ return 0;
+ }
+ atom -= s->first_atom;
+ if (atom < s->atom_to_idx_size && s->atom_to_idx[atom] != 0) {
+ *pres = s->atom_to_idx[atom];
+ return 0;
+ }
+ if (atom >= s->atom_to_idx_size) {
+ int old_size, i;
+ old_size = s->atom_to_idx_size;
+ if (js_resize_array(s->ctx, (void **)&s->atom_to_idx,
+ sizeof(s->atom_to_idx[0]), &s->atom_to_idx_size,
+ atom + 1))
+ return -1;
+ /* XXX: could add a specific js_resize_array() function to do it */
+ for(i = old_size; i < s->atom_to_idx_size; i++)
+ s->atom_to_idx[i] = 0;
+ }
+ if (js_resize_array(s->ctx, (void **)&s->idx_to_atom,
+ sizeof(s->idx_to_atom[0]),
+ &s->idx_to_atom_size, s->idx_to_atom_count + 1))
+ goto fail;
+
+ v = s->idx_to_atom_count++;
+ s->idx_to_atom[v] = atom + s->first_atom;
+ v += s->first_atom;
+ s->atom_to_idx[atom] = v;
+ *pres = v;
+ return 0;
+ fail:
+ *pres = 0;
+ return -1;
+}
+
+static int bc_put_atom(BCWriterState *s, JSAtom atom)
+{
+ uint32_t v;
+
+ if (__JS_AtomIsTaggedInt(atom)) {
+ v = (__JS_AtomToUInt32(atom) << 1) | 1;
+ } else {
+ if (bc_atom_to_idx(s, &v, atom))
+ return -1;
+ v <<= 1;
+ }
+ bc_put_leb128(s, v);
+ return 0;
+}
+
+static void bc_byte_swap(uint8_t *bc_buf, int bc_len)
+{
+ int pos, len, op, fmt;
+
+ pos = 0;
+ while (pos < bc_len) {
+ op = bc_buf[pos];
+ len = short_opcode_info(op).size;
+ fmt = short_opcode_info(op).fmt;
+ switch(fmt) {
+ case OP_FMT_u16:
+ case OP_FMT_i16:
+ case OP_FMT_label16:
+ case OP_FMT_npop:
+ case OP_FMT_loc:
+ case OP_FMT_arg:
+ case OP_FMT_var_ref:
+ put_u16(bc_buf + pos + 1,
+ bswap16(get_u16(bc_buf + pos + 1)));
+ break;
+ case OP_FMT_i32:
+ case OP_FMT_u32:
+ case OP_FMT_const:
+ case OP_FMT_label:
+ case OP_FMT_atom:
+ case OP_FMT_atom_u8:
+ put_u32(bc_buf + pos + 1,
+ bswap32(get_u32(bc_buf + pos + 1)));
+ break;
+ case OP_FMT_atom_u16:
+ case OP_FMT_label_u16:
+ put_u32(bc_buf + pos + 1,
+ bswap32(get_u32(bc_buf + pos + 1)));
+ put_u16(bc_buf + pos + 1 + 4,
+ bswap16(get_u16(bc_buf + pos + 1 + 4)));
+ break;
+ case OP_FMT_atom_label_u8:
+ case OP_FMT_atom_label_u16:
+ put_u32(bc_buf + pos + 1,
+ bswap32(get_u32(bc_buf + pos + 1)));
+ put_u32(bc_buf + pos + 1 + 4,
+ bswap32(get_u32(bc_buf + pos + 1 + 4)));
+ if (fmt == OP_FMT_atom_label_u16) {
+ put_u16(bc_buf + pos + 1 + 4 + 4,
+ bswap16(get_u16(bc_buf + pos + 1 + 4 + 4)));
+ }
+ break;
+ case OP_FMT_npop_u16:
+ put_u16(bc_buf + pos + 1,
+ bswap16(get_u16(bc_buf + pos + 1)));
+ put_u16(bc_buf + pos + 1 + 2,
+ bswap16(get_u16(bc_buf + pos + 1 + 2)));
+ break;
+ default:
+ break;
+ }
+ pos += len;
+ }
+}
+
+static int JS_WriteFunctionBytecode(BCWriterState *s,
+ const uint8_t *bc_buf1, int bc_len)
+{
+ int pos, len, op;
+ JSAtom atom;
+ uint8_t *bc_buf;
+ uint32_t val;
+
+ bc_buf = js_malloc(s->ctx, bc_len);
+ if (!bc_buf)
+ return -1;
+ memcpy(bc_buf, bc_buf1, bc_len);
+
+ pos = 0;
+ while (pos < bc_len) {
+ op = bc_buf[pos];
+ len = short_opcode_info(op).size;
+ switch(short_opcode_info(op).fmt) {
+ case OP_FMT_atom:
+ case OP_FMT_atom_u8:
+ case OP_FMT_atom_u16:
+ case OP_FMT_atom_label_u8:
+ case OP_FMT_atom_label_u16:
+ atom = get_u32(bc_buf + pos + 1);
+ if (bc_atom_to_idx(s, &val, atom))
+ goto fail;
+ put_u32(bc_buf + pos + 1, val);
+ break;
+ default:
+ break;
+ }
+ pos += len;
+ }
+
+ if (is_be())
+ bc_byte_swap(bc_buf, bc_len);
+
+ dbuf_put(&s->dbuf, bc_buf, bc_len);
+
+ js_free(s->ctx, bc_buf);
+ return 0;
+ fail:
+ js_free(s->ctx, bc_buf);
+ return -1;
+}
+
+static void JS_WriteString(BCWriterState *s, JSString *p)
+{
+ int i;
+ bc_put_leb128(s, ((uint32_t)p->len << 1) | p->is_wide_char);
+ if (p->is_wide_char) {
+ for(i = 0; i < p->len; i++)
+ bc_put_u16(s, p->u.str16[i]);
+ } else {
+ dbuf_put(&s->dbuf, p->u.str8, p->len);
+ }
+}
+
+static int JS_WriteBigNum(BCWriterState *s, JSValueConst obj)
+{
+ uint32_t tag, tag1;
+ int64_t e;
+ JSBigFloat *bf = JS_VALUE_GET_PTR(obj);
+ bf_t *a = &bf->num;
+ size_t len, i, n1, j;
+ limb_t v;
+
+ tag = JS_VALUE_GET_TAG(obj);
+ switch(tag) {
+ case JS_TAG_BIG_INT:
+ tag1 = BC_TAG_BIG_INT;
+ break;
+#ifdef CONFIG_BIGNUM
+ case JS_TAG_BIG_FLOAT:
+ tag1 = BC_TAG_BIG_FLOAT;
+ break;
+ case JS_TAG_BIG_DECIMAL:
+ tag1 = BC_TAG_BIG_DECIMAL;
+ break;
+#endif
+ default:
+ abort();
+ }
+ bc_put_u8(s, tag1);
+
+ /* sign + exponent */
+ if (a->expn == BF_EXP_ZERO)
+ e = 0;
+ else if (a->expn == BF_EXP_INF)
+ e = 1;
+ else if (a->expn == BF_EXP_NAN)
+ e = 2;
+ else if (a->expn >= 0)
+ e = a->expn + 3;
+ else
+ e = a->expn;
+ e = (e * 2) | a->sign;
+ if (e < INT32_MIN || e > INT32_MAX) {
+ JS_ThrowInternalError(s->ctx, "bignum exponent is too large");
+ return -1;
+ }
+ bc_put_sleb128(s, e);
+
+ /* mantissa */
+ if (a->len != 0) {
+ if (tag != JS_TAG_BIG_DECIMAL) {
+ i = 0;
+ while (i < a->len && a->tab[i] == 0)
+ i++;
+ assert(i < a->len);
+ v = a->tab[i];
+ n1 = sizeof(limb_t);
+ while ((v & 0xff) == 0) {
+ n1--;
+ v >>= 8;
+ }
+ i++;
+ len = (a->len - i) * sizeof(limb_t) + n1;
+ if (len > INT32_MAX) {
+ JS_ThrowInternalError(s->ctx, "bignum is too large");
+ return -1;
+ }
+ bc_put_leb128(s, len);
+ /* always saved in byte based little endian representation */
+ for(j = 0; j < n1; j++) {
+ bc_put_u8(s, v >> (j * 8));
+ }
+ for(; i < a->len; i++) {
+ limb_t v = a->tab[i];
+#if LIMB_BITS == 32
+ bc_put_u32(s, v);
+#else
+ bc_put_u64(s, v);
+#endif
+ }
+ } else {
+ int bpos, d;
+ uint8_t v8;
+ size_t i0;
+
+ /* little endian BCD */
+ i = 0;
+ while (i < a->len && a->tab[i] == 0)
+ i++;
+ assert(i < a->len);
+ len = a->len * LIMB_DIGITS;
+ v = a->tab[i];
+ j = 0;
+ while ((v % 10) == 0) {
+ j++;
+ v /= 10;
+ }
+ len -= j;
+ assert(len > 0);
+ if (len > INT32_MAX) {
+ JS_ThrowInternalError(s->ctx, "bignum is too large");
+ return -1;
+ }
+ bc_put_leb128(s, len);
+
+ bpos = 0;
+ v8 = 0;
+ i0 = i;
+ for(; i < a->len; i++) {
+ if (i != i0) {
+ v = a->tab[i];
+ j = 0;
+ }
+ for(; j < LIMB_DIGITS; j++) {
+ d = v % 10;
+ v /= 10;
+ if (bpos == 0) {
+ v8 = d;
+ bpos = 1;
+ } else {
+ bc_put_u8(s, v8 | (d << 4));
+ bpos = 0;
+ }
+ }
+ }
+ /* flush the last digit */
+ if (bpos) {
+ bc_put_u8(s, v8);
+ }
+ }
+ }
+ return 0;
+}
+
+static int JS_WriteObjectRec(BCWriterState *s, JSValueConst obj);
+
+static int JS_WriteFunctionTag(BCWriterState *s, JSValueConst obj)
+{
+ JSFunctionBytecode *b = JS_VALUE_GET_PTR(obj);
+ uint32_t flags;
+ int idx, i;
+
+ bc_put_u8(s, BC_TAG_FUNCTION_BYTECODE);
+ flags = idx = 0;
+ bc_set_flags(&flags, &idx, b->has_prototype, 1);
+ bc_set_flags(&flags, &idx, b->has_simple_parameter_list, 1);
+ bc_set_flags(&flags, &idx, b->is_derived_class_constructor, 1);
+ bc_set_flags(&flags, &idx, b->need_home_object, 1);
+ bc_set_flags(&flags, &idx, b->func_kind, 2);
+ bc_set_flags(&flags, &idx, b->new_target_allowed, 1);
+ bc_set_flags(&flags, &idx, b->super_call_allowed, 1);
+ bc_set_flags(&flags, &idx, b->super_allowed, 1);
+ bc_set_flags(&flags, &idx, b->arguments_allowed, 1);
+ bc_set_flags(&flags, &idx, b->has_debug, 1);
+ bc_set_flags(&flags, &idx, b->backtrace_barrier, 1);
+ bc_set_flags(&flags, &idx, b->is_direct_or_indirect_eval, 1);
+ assert(idx <= 16);
+ bc_put_u16(s, flags);
+ bc_put_u8(s, b->js_mode);
+ bc_put_atom(s, b->func_name);
+
+ bc_put_leb128(s, b->arg_count);
+ bc_put_leb128(s, b->var_count);
+ bc_put_leb128(s, b->defined_arg_count);
+ bc_put_leb128(s, b->stack_size);
+ bc_put_leb128(s, b->closure_var_count);
+ bc_put_leb128(s, b->cpool_count);
+ bc_put_leb128(s, b->byte_code_len);
+ if (b->vardefs) {
+ /* XXX: this field is redundant */
+ bc_put_leb128(s, b->arg_count + b->var_count);
+ for(i = 0; i < b->arg_count + b->var_count; i++) {
+ JSVarDef *vd = &b->vardefs[i];
+ bc_put_atom(s, vd->var_name);
+ bc_put_leb128(s, vd->scope_level);
+ bc_put_leb128(s, vd->scope_next + 1);
+ flags = idx = 0;
+ bc_set_flags(&flags, &idx, vd->var_kind, 4);
+ bc_set_flags(&flags, &idx, vd->is_const, 1);
+ bc_set_flags(&flags, &idx, vd->is_lexical, 1);
+ bc_set_flags(&flags, &idx, vd->is_captured, 1);
+ assert(idx <= 8);
+ bc_put_u8(s, flags);
+ }
+ } else {
+ bc_put_leb128(s, 0);
+ }
+
+ for(i = 0; i < b->closure_var_count; i++) {
+ JSClosureVar *cv = &b->closure_var[i];
+ bc_put_atom(s, cv->var_name);
+ bc_put_leb128(s, cv->var_idx);
+ flags = idx = 0;
+ bc_set_flags(&flags, &idx, cv->is_local, 1);
+ bc_set_flags(&flags, &idx, cv->is_arg, 1);
+ bc_set_flags(&flags, &idx, cv->is_const, 1);
+ bc_set_flags(&flags, &idx, cv->is_lexical, 1);
+ bc_set_flags(&flags, &idx, cv->var_kind, 4);
+ assert(idx <= 8);
+ bc_put_u8(s, flags);
+ }
+
+ if (JS_WriteFunctionBytecode(s, b->byte_code_buf, b->byte_code_len))
+ goto fail;
+
+ if (b->has_debug) {
+ bc_put_atom(s, b->debug.filename);
+ bc_put_leb128(s, b->debug.line_num);
+ bc_put_leb128(s, b->debug.pc2line_len);
+ dbuf_put(&s->dbuf, b->debug.pc2line_buf, b->debug.pc2line_len);
+ }
+
+ for(i = 0; i < b->cpool_count; i++) {
+ if (JS_WriteObjectRec(s, b->cpool[i]))
+ goto fail;
+ }
+ return 0;
+ fail:
+ return -1;
+}
+
+static int JS_WriteModule(BCWriterState *s, JSValueConst obj)
+{
+ JSModuleDef *m = JS_VALUE_GET_PTR(obj);
+ int i;
+
+ bc_put_u8(s, BC_TAG_MODULE);
+ bc_put_atom(s, m->module_name);
+
+ bc_put_leb128(s, m->req_module_entries_count);
+ for(i = 0; i < m->req_module_entries_count; i++) {
+ JSReqModuleEntry *rme = &m->req_module_entries[i];
+ bc_put_atom(s, rme->module_name);
+ }
+
+ bc_put_leb128(s, m->export_entries_count);
+ for(i = 0; i < m->export_entries_count; i++) {
+ JSExportEntry *me = &m->export_entries[i];
+ bc_put_u8(s, me->export_type);
+ if (me->export_type == JS_EXPORT_TYPE_LOCAL) {
+ bc_put_leb128(s, me->u.local.var_idx);
+ } else {
+ bc_put_leb128(s, me->u.req_module_idx);
+ bc_put_atom(s, me->local_name);
+ }
+ bc_put_atom(s, me->export_name);
+ }
+
+ bc_put_leb128(s, m->star_export_entries_count);
+ for(i = 0; i < m->star_export_entries_count; i++) {
+ JSStarExportEntry *se = &m->star_export_entries[i];
+ bc_put_leb128(s, se->req_module_idx);
+ }
+
+ bc_put_leb128(s, m->import_entries_count);
+ for(i = 0; i < m->import_entries_count; i++) {
+ JSImportEntry *mi = &m->import_entries[i];
+ bc_put_leb128(s, mi->var_idx);
+ bc_put_atom(s, mi->import_name);
+ bc_put_leb128(s, mi->req_module_idx);
+ }
+
+ bc_put_u8(s, m->has_tla);
+
+ if (JS_WriteObjectRec(s, m->func_obj))
+ goto fail;
+ return 0;
+ fail:
+ return -1;
+}
+
+static int JS_WriteArray(BCWriterState *s, JSValueConst obj)
+{
+ JSObject *p = JS_VALUE_GET_OBJ(obj);
+ uint32_t i, len;
+ JSValue val;
+ int ret;
+ BOOL is_template;
+
+ if (s->allow_bytecode && !p->extensible) {
+ /* not extensible array: we consider it is a
+ template when we are saving bytecode */
+ bc_put_u8(s, BC_TAG_TEMPLATE_OBJECT);
+ is_template = TRUE;
+ } else {
+ bc_put_u8(s, BC_TAG_ARRAY);
+ is_template = FALSE;
+ }
+ if (js_get_length32(s->ctx, &len, obj))
+ goto fail1;
+ bc_put_leb128(s, len);
+ for(i = 0; i < len; i++) {
+ val = JS_GetPropertyUint32(s->ctx, obj, i);
+ if (JS_IsException(val))
+ goto fail1;
+ ret = JS_WriteObjectRec(s, val);
+ JS_FreeValue(s->ctx, val);
+ if (ret)
+ goto fail1;
+ }
+ if (is_template) {
+ val = JS_GetProperty(s->ctx, obj, JS_ATOM_raw);
+ if (JS_IsException(val))
+ goto fail1;
+ ret = JS_WriteObjectRec(s, val);
+ JS_FreeValue(s->ctx, val);
+ if (ret)
+ goto fail1;
+ }
+ return 0;
+ fail1:
+ return -1;
+}
+
+static int JS_WriteObjectTag(BCWriterState *s, JSValueConst obj)
+{
+ JSObject *p = JS_VALUE_GET_OBJ(obj);
+ uint32_t i, prop_count;
+ JSShape *sh;
+ JSShapeProperty *pr;
+ int pass;
+ JSAtom atom;
+
+ bc_put_u8(s, BC_TAG_OBJECT);
+ prop_count = 0;
+ sh = p->shape;
+ for(pass = 0; pass < 2; pass++) {
+ if (pass == 1)
+ bc_put_leb128(s, prop_count);
+ for(i = 0, pr = get_shape_prop(sh); i < sh->prop_count; i++, pr++) {
+ atom = pr->atom;
+ if (atom != JS_ATOM_NULL &&
+ JS_AtomIsString(s->ctx, atom) &&
+ (pr->flags & JS_PROP_ENUMERABLE)) {
+ if (pr->flags & JS_PROP_TMASK) {
+ JS_ThrowTypeError(s->ctx, "only value properties are supported");
+ goto fail;
+ }
+ if (pass == 0) {
+ prop_count++;
+ } else {
+ bc_put_atom(s, atom);
+ if (JS_WriteObjectRec(s, p->prop[i].u.value))
+ goto fail;
+ }
+ }
+ }
+ }
+ return 0;
+ fail:
+ return -1;
+}
+
+static int JS_WriteTypedArray(BCWriterState *s, JSValueConst obj)
+{
+ JSObject *p = JS_VALUE_GET_OBJ(obj);
+ JSTypedArray *ta = p->u.typed_array;
+
+ bc_put_u8(s, BC_TAG_TYPED_ARRAY);
+ bc_put_u8(s, p->class_id - JS_CLASS_UINT8C_ARRAY);
+ bc_put_leb128(s, p->u.array.count);
+ bc_put_leb128(s, ta->offset);
+ if (JS_WriteObjectRec(s, JS_MKPTR(JS_TAG_OBJECT, ta->buffer)))
+ return -1;
+ return 0;
+}
+
+static int JS_WriteArrayBuffer(BCWriterState *s, JSValueConst obj)
+{
+ JSObject *p = JS_VALUE_GET_OBJ(obj);
+ JSArrayBuffer *abuf = p->u.array_buffer;
+ if (abuf->detached) {
+ JS_ThrowTypeErrorDetachedArrayBuffer(s->ctx);
+ return -1;
+ }
+ bc_put_u8(s, BC_TAG_ARRAY_BUFFER);
+ bc_put_leb128(s, abuf->byte_length);
+ dbuf_put(&s->dbuf, abuf->data, abuf->byte_length);
+ return 0;
+}
+
+static int JS_WriteSharedArrayBuffer(BCWriterState *s, JSValueConst obj)
+{
+ JSObject *p = JS_VALUE_GET_OBJ(obj);
+ JSArrayBuffer *abuf = p->u.array_buffer;
+ assert(!abuf->detached); /* SharedArrayBuffer are never detached */
+ bc_put_u8(s, BC_TAG_SHARED_ARRAY_BUFFER);
+ bc_put_leb128(s, abuf->byte_length);
+ bc_put_u64(s, (uintptr_t)abuf->data);
+ if (js_resize_array(s->ctx, (void **)&s->sab_tab, sizeof(s->sab_tab[0]),
+ &s->sab_tab_size, s->sab_tab_len + 1))
+ return -1;
+ /* keep the SAB pointer so that the user can clone it or free it */
+ s->sab_tab[s->sab_tab_len++] = abuf->data;
+ return 0;
+}
+
+static int JS_WriteObjectRec(BCWriterState *s, JSValueConst obj)
+{
+ uint32_t tag;
+
+ if (js_check_stack_overflow(s->ctx->rt, 0)) {
+ JS_ThrowStackOverflow(s->ctx);
+ return -1;
+ }
+
+ tag = JS_VALUE_GET_NORM_TAG(obj);
+ switch(tag) {
+ case JS_TAG_NULL:
+ bc_put_u8(s, BC_TAG_NULL);
+ break;
+ case JS_TAG_UNDEFINED:
+ bc_put_u8(s, BC_TAG_UNDEFINED);
+ break;
+ case JS_TAG_BOOL:
+ bc_put_u8(s, BC_TAG_BOOL_FALSE + JS_VALUE_GET_INT(obj));
+ break;
+ case JS_TAG_INT:
+ bc_put_u8(s, BC_TAG_INT32);
+ bc_put_sleb128(s, JS_VALUE_GET_INT(obj));
+ break;
+ case JS_TAG_FLOAT64:
+ {
+ JSFloat64Union u;
+ bc_put_u8(s, BC_TAG_FLOAT64);
+ u.d = JS_VALUE_GET_FLOAT64(obj);
+ bc_put_u64(s, u.u64);
+ }
+ break;
+ case JS_TAG_STRING:
+ {
+ JSString *p = JS_VALUE_GET_STRING(obj);
+ bc_put_u8(s, BC_TAG_STRING);
+ JS_WriteString(s, p);
+ }
+ break;
+ case JS_TAG_FUNCTION_BYTECODE:
+ if (!s->allow_bytecode)
+ goto invalid_tag;
+ if (JS_WriteFunctionTag(s, obj))
+ goto fail;
+ break;
+ case JS_TAG_MODULE:
+ if (!s->allow_bytecode)
+ goto invalid_tag;
+ if (JS_WriteModule(s, obj))
+ goto fail;
+ break;
+ case JS_TAG_OBJECT:
+ {
+ JSObject *p = JS_VALUE_GET_OBJ(obj);
+ int ret, idx;
+
+ if (s->allow_reference) {
+ idx = js_object_list_find(s->ctx, &s->object_list, p);
+ if (idx >= 0) {
+ bc_put_u8(s, BC_TAG_OBJECT_REFERENCE);
+ bc_put_leb128(s, idx);
+ break;
+ } else {
+ if (js_object_list_add(s->ctx, &s->object_list, p))
+ goto fail;
+ }
+ } else {
+ if (p->tmp_mark) {
+ JS_ThrowTypeError(s->ctx, "circular reference");
+ goto fail;
+ }
+ p->tmp_mark = 1;
+ }
+ switch(p->class_id) {
+ case JS_CLASS_ARRAY:
+ ret = JS_WriteArray(s, obj);
+ break;
+ case JS_CLASS_OBJECT:
+ ret = JS_WriteObjectTag(s, obj);
+ break;
+ case JS_CLASS_ARRAY_BUFFER:
+ ret = JS_WriteArrayBuffer(s, obj);
+ break;
+ case JS_CLASS_SHARED_ARRAY_BUFFER:
+ if (!s->allow_sab)
+ goto invalid_tag;
+ ret = JS_WriteSharedArrayBuffer(s, obj);
+ break;
+ case JS_CLASS_DATE:
+ bc_put_u8(s, BC_TAG_DATE);
+ ret = JS_WriteObjectRec(s, p->u.object_data);
+ break;
+ case JS_CLASS_NUMBER:
+ case JS_CLASS_STRING:
+ case JS_CLASS_BOOLEAN:
+ case JS_CLASS_BIG_INT:
+#ifdef CONFIG_BIGNUM
+ case JS_CLASS_BIG_FLOAT:
+ case JS_CLASS_BIG_DECIMAL:
+#endif
+ bc_put_u8(s, BC_TAG_OBJECT_VALUE);
+ ret = JS_WriteObjectRec(s, p->u.object_data);
+ break;
+ default:
+ if (p->class_id >= JS_CLASS_UINT8C_ARRAY &&
+ p->class_id <= JS_CLASS_FLOAT64_ARRAY) {
+ ret = JS_WriteTypedArray(s, obj);
+ } else {
+ JS_ThrowTypeError(s->ctx, "unsupported object class");
+ ret = -1;
+ }
+ break;
+ }
+ p->tmp_mark = 0;
+ if (ret)
+ goto fail;
+ }
+ break;
+ case JS_TAG_BIG_INT:
+#ifdef CONFIG_BIGNUM
+ case JS_TAG_BIG_FLOAT:
+ case JS_TAG_BIG_DECIMAL:
+#endif
+ if (JS_WriteBigNum(s, obj))
+ goto fail;
+ break;
+ default:
+ invalid_tag:
+ JS_ThrowInternalError(s->ctx, "unsupported tag (%d)", tag);
+ goto fail;
+ }
+ return 0;
+
+ fail:
+ return -1;
+}
+
+/* create the atom table */
+static int JS_WriteObjectAtoms(BCWriterState *s)
+{
+ JSRuntime *rt = s->ctx->rt;
+ DynBuf dbuf1;
+ int i, atoms_size;
+
+ dbuf1 = s->dbuf;
+ js_dbuf_init(s->ctx, &s->dbuf);
+ bc_put_u8(s, BC_VERSION);
+
+ bc_put_leb128(s, s->idx_to_atom_count);
+ for(i = 0; i < s->idx_to_atom_count; i++) {
+ JSAtomStruct *p = rt->atom_array[s->idx_to_atom[i]];
+ JS_WriteString(s, p);
+ }
+ /* XXX: should check for OOM in above phase */
+
+ /* move the atoms at the start */
+ /* XXX: could just append dbuf1 data, but it uses more memory if
+ dbuf1 is larger than dbuf */
+ atoms_size = s->dbuf.size;
+ if (dbuf_realloc(&dbuf1, dbuf1.size + atoms_size))
+ goto fail;
+ memmove(dbuf1.buf + atoms_size, dbuf1.buf, dbuf1.size);
+ memcpy(dbuf1.buf, s->dbuf.buf, atoms_size);
+ dbuf1.size += atoms_size;
+ dbuf_free(&s->dbuf);
+ s->dbuf = dbuf1;
+ return 0;
+ fail:
+ dbuf_free(&dbuf1);
+ return -1;
+}
+
+uint8_t *JS_WriteObject2(JSContext *ctx, size_t *psize, JSValueConst obj,
+ int flags, uint8_t ***psab_tab, size_t *psab_tab_len)
+{
+ BCWriterState ss, *s = &ss;
+
+ memset(s, 0, sizeof(*s));
+ s->ctx = ctx;
+ s->allow_bytecode = ((flags & JS_WRITE_OBJ_BYTECODE) != 0);
+ s->allow_sab = ((flags & JS_WRITE_OBJ_SAB) != 0);
+ s->allow_reference = ((flags & JS_WRITE_OBJ_REFERENCE) != 0);
+ /* XXX: could use a different version when bytecode is included */
+ if (s->allow_bytecode)
+ s->first_atom = JS_ATOM_END;
+ else
+ s->first_atom = 1;
+ js_dbuf_init(ctx, &s->dbuf);
+ js_object_list_init(&s->object_list);
+
+ if (JS_WriteObjectRec(s, obj))
+ goto fail;
+ if (JS_WriteObjectAtoms(s))
+ goto fail;
+ js_object_list_end(ctx, &s->object_list);
+ js_free(ctx, s->atom_to_idx);
+ js_free(ctx, s->idx_to_atom);
+ *psize = s->dbuf.size;
+ if (psab_tab)
+ *psab_tab = s->sab_tab;
+ if (psab_tab_len)
+ *psab_tab_len = s->sab_tab_len;
+ return s->dbuf.buf;
+ fail:
+ js_object_list_end(ctx, &s->object_list);
+ js_free(ctx, s->atom_to_idx);
+ js_free(ctx, s->idx_to_atom);
+ dbuf_free(&s->dbuf);
+ *psize = 0;
+ if (psab_tab)
+ *psab_tab = NULL;
+ if (psab_tab_len)
+ *psab_tab_len = 0;
+ return NULL;
+}
+
+uint8_t *JS_WriteObject(JSContext *ctx, size_t *psize, JSValueConst obj,
+ int flags)
+{
+ return JS_WriteObject2(ctx, psize, obj, flags, NULL, NULL);
+}
+
+typedef struct BCReaderState {
+ JSContext *ctx;
+ const uint8_t *buf_start, *ptr, *buf_end;
+ uint32_t first_atom;
+ uint32_t idx_to_atom_count;
+ JSAtom *idx_to_atom;
+ int error_state;
+ BOOL allow_sab : 8;
+ BOOL allow_bytecode : 8;
+ BOOL is_rom_data : 8;
+ BOOL allow_reference : 8;
+ /* object references */
+ JSObject **objects;
+ int objects_count;
+ int objects_size;
+
+#ifdef DUMP_READ_OBJECT
+ const uint8_t *ptr_last;
+ int level;
+#endif
+} BCReaderState;
+
+#ifdef DUMP_READ_OBJECT
+static void __attribute__((format(printf, 2, 3))) bc_read_trace(BCReaderState *s, const char *fmt, ...) {
+ va_list ap;
+ int i, n, n0;
+
+ if (!s->ptr_last)
+ s->ptr_last = s->buf_start;
+
+ n = n0 = 0;
+ if (s->ptr > s->ptr_last || s->ptr == s->buf_start) {
+ n0 = printf("%04x: ", (int)(s->ptr_last - s->buf_start));
+ n += n0;
+ }
+ for (i = 0; s->ptr_last < s->ptr; i++) {
+ if ((i & 7) == 0 && i > 0) {
+ printf("\n%*s", n0, "");
+ n = n0;
+ }
+ n += printf(" %02x", *s->ptr_last++);
+ }
+ if (*fmt == '}')
+ s->level--;
+ if (n < 32 + s->level * 2) {
+ printf("%*s", 32 + s->level * 2 - n, "");
+ }
+ va_start(ap, fmt);
+ vfprintf(stdout, fmt, ap);
+ va_end(ap);
+ if (strchr(fmt, '{'))
+ s->level++;
+}
+#else
+#define bc_read_trace(...)
+#endif
+
+static int bc_read_error_end(BCReaderState *s)
+{
+ if (!s->error_state) {
+ JS_ThrowSyntaxError(s->ctx, "read after the end of the buffer");
+ }
+ return s->error_state = -1;
+}
+
+static int bc_get_u8(BCReaderState *s, uint8_t *pval)
+{
+ if (unlikely(s->buf_end - s->ptr < 1)) {
+ *pval = 0; /* avoid warning */
+ return bc_read_error_end(s);
+ }
+ *pval = *s->ptr++;
+ return 0;
+}
+
+static int bc_get_u16(BCReaderState *s, uint16_t *pval)
+{
+ uint16_t v;
+ if (unlikely(s->buf_end - s->ptr < 2)) {
+ *pval = 0; /* avoid warning */
+ return bc_read_error_end(s);
+ }
+ v = get_u16(s->ptr);
+ if (is_be())
+ v = bswap16(v);
+ *pval = v;
+ s->ptr += 2;
+ return 0;
+}
+
+static __maybe_unused int bc_get_u32(BCReaderState *s, uint32_t *pval)
+{
+ uint32_t v;
+ if (unlikely(s->buf_end - s->ptr < 4)) {
+ *pval = 0; /* avoid warning */
+ return bc_read_error_end(s);
+ }
+ v = get_u32(s->ptr);
+ if (is_be())
+ v = bswap32(v);
+ *pval = v;
+ s->ptr += 4;
+ return 0;
+}
+
+static int bc_get_u64(BCReaderState *s, uint64_t *pval)
+{
+ uint64_t v;
+ if (unlikely(s->buf_end - s->ptr < 8)) {
+ *pval = 0; /* avoid warning */
+ return bc_read_error_end(s);
+ }
+ v = get_u64(s->ptr);
+ if (is_be())
+ v = bswap64(v);
+ *pval = v;
+ s->ptr += 8;
+ return 0;
+}
+
+static int bc_get_leb128(BCReaderState *s, uint32_t *pval)
+{
+ int ret;
+ ret = get_leb128(pval, s->ptr, s->buf_end);
+ if (unlikely(ret < 0))
+ return bc_read_error_end(s);
+ s->ptr += ret;
+ return 0;
+}
+
+static int bc_get_sleb128(BCReaderState *s, int32_t *pval)
+{
+ int ret;
+ ret = get_sleb128(pval, s->ptr, s->buf_end);
+ if (unlikely(ret < 0))
+ return bc_read_error_end(s);
+ s->ptr += ret;
+ return 0;
+}
+
+/* XXX: used to read an `int` with a positive value */
+static int bc_get_leb128_int(BCReaderState *s, int *pval)
+{
+ return bc_get_leb128(s, (uint32_t *)pval);
+}
+
+static int bc_get_leb128_u16(BCReaderState *s, uint16_t *pval)
+{
+ uint32_t val;
+ if (bc_get_leb128(s, &val)) {
+ *pval = 0;
+ return -1;
+ }
+ *pval = val;
+ return 0;
+}
+
+static int bc_get_buf(BCReaderState *s, uint8_t *buf, uint32_t buf_len)
+{
+ if (buf_len != 0) {
+ if (unlikely(!buf || s->buf_end - s->ptr < buf_len))
+ return bc_read_error_end(s);
+ memcpy(buf, s->ptr, buf_len);
+ s->ptr += buf_len;
+ }
+ return 0;
+}
+
+static int bc_idx_to_atom(BCReaderState *s, JSAtom *patom, uint32_t idx)
+{
+ JSAtom atom;
+
+ if (__JS_AtomIsTaggedInt(idx)) {
+ atom = idx;
+ } else if (idx < s->first_atom) {
+ atom = JS_DupAtom(s->ctx, idx);
+ } else {
+ idx -= s->first_atom;
+ if (idx >= s->idx_to_atom_count) {
+ JS_ThrowSyntaxError(s->ctx, "invalid atom index (pos=%u)",
+ (unsigned int)(s->ptr - s->buf_start));
+ *patom = JS_ATOM_NULL;
+ return s->error_state = -1;
+ }
+ atom = JS_DupAtom(s->ctx, s->idx_to_atom[idx]);
+ }
+ *patom = atom;
+ return 0;
+}
+
+static int bc_get_atom(BCReaderState *s, JSAtom *patom)
+{
+ uint32_t v;
+ if (bc_get_leb128(s, &v))
+ return -1;
+ if (v & 1) {
+ *patom = __JS_AtomFromUInt32(v >> 1);
+ return 0;
+ } else {
+ return bc_idx_to_atom(s, patom, v >> 1);
+ }
+}
+
+static JSString *JS_ReadString(BCReaderState *s)
+{
+ uint32_t len;
+ size_t size;
+ BOOL is_wide_char;
+ JSString *p;
+
+ if (bc_get_leb128(s, &len))
+ return NULL;
+ is_wide_char = len & 1;
+ len >>= 1;
+ p = js_alloc_string(s->ctx, len, is_wide_char);
+ if (!p) {
+ s->error_state = -1;
+ return NULL;
+ }
+ size = (size_t)len << is_wide_char;
+ if ((s->buf_end - s->ptr) < size) {
+ bc_read_error_end(s);
+ js_free_string(s->ctx->rt, p);
+ return NULL;
+ }
+ memcpy(p->u.str8, s->ptr, size);
+ s->ptr += size;
+ if (is_wide_char) {
+ if (is_be()) {
+ uint32_t i;
+ for (i = 0; i < len; i++)
+ p->u.str16[i] = bswap16(p->u.str16[i]);
+ }
+ } else {
+ p->u.str8[size] = '\0'; /* add the trailing zero for 8 bit strings */
+ }
+#ifdef DUMP_READ_OBJECT
+ JS_DumpString(s->ctx->rt, p); printf("\n");
+#endif
+ return p;
+}
+
+static uint32_t bc_get_flags(uint32_t flags, int *pidx, int n)
+{
+ uint32_t val;
+ /* XXX: this does not work for n == 32 */
+ val = (flags >> *pidx) & ((1U << n) - 1);
+ *pidx += n;
+ return val;
+}
+
+static int JS_ReadFunctionBytecode(BCReaderState *s, JSFunctionBytecode *b,
+ int byte_code_offset, uint32_t bc_len)
+{
+ uint8_t *bc_buf;
+ int pos, len, op;
+ JSAtom atom;
+ uint32_t idx;
+
+ if (s->is_rom_data) {
+ /* directly use the input buffer */
+ if (unlikely(s->buf_end - s->ptr < bc_len))
+ return bc_read_error_end(s);
+ bc_buf = (uint8_t *)s->ptr;
+ s->ptr += bc_len;
+ } else {
+ bc_buf = (void *)((uint8_t*)b + byte_code_offset);
+ if (bc_get_buf(s, bc_buf, bc_len))
+ return -1;
+ }
+ b->byte_code_buf = bc_buf;
+
+ if (is_be())
+ bc_byte_swap(bc_buf, bc_len);
+
+ pos = 0;
+ while (pos < bc_len) {
+ op = bc_buf[pos];
+ len = short_opcode_info(op).size;
+ switch(short_opcode_info(op).fmt) {
+ case OP_FMT_atom:
+ case OP_FMT_atom_u8:
+ case OP_FMT_atom_u16:
+ case OP_FMT_atom_label_u8:
+ case OP_FMT_atom_label_u16:
+ idx = get_u32(bc_buf + pos + 1);
+ if (s->is_rom_data) {
+ /* just increment the reference count of the atom */
+ JS_DupAtom(s->ctx, (JSAtom)idx);
+ } else {
+ if (bc_idx_to_atom(s, &atom, idx)) {
+ /* Note: the atoms will be freed up to this position */
+ b->byte_code_len = pos;
+ return -1;
+ }
+ put_u32(bc_buf + pos + 1, atom);
+#ifdef DUMP_READ_OBJECT
+ bc_read_trace(s, "at %d, fixup atom: ", pos + 1); print_atom(s->ctx, atom); printf("\n");
+#endif
+ }
+ break;
+ default:
+ break;
+ }
+ pos += len;
+ }
+ return 0;
+}
+
+static JSValue JS_ReadBigNum(BCReaderState *s, int tag)
+{
+ JSValue obj = JS_UNDEFINED;
+ uint8_t v8;
+ int32_t e;
+ uint32_t len;
+ limb_t l, i, n;
+ JSBigFloat *p;
+ limb_t v;
+ bf_t *a;
+
+ p = js_new_bf(s->ctx);
+ if (!p)
+ goto fail;
+ switch(tag) {
+ case BC_TAG_BIG_INT:
+ obj = JS_MKPTR(JS_TAG_BIG_INT, p);
+ break;
+#ifdef CONFIG_BIGNUM
+ case BC_TAG_BIG_FLOAT:
+ obj = JS_MKPTR(JS_TAG_BIG_FLOAT, p);
+ break;
+ case BC_TAG_BIG_DECIMAL:
+ obj = JS_MKPTR(JS_TAG_BIG_DECIMAL, p);
+ break;
+#endif
+ default:
+ abort();
+ }
+
+ /* sign + exponent */
+ if (bc_get_sleb128(s, &e))
+ goto fail;
+
+ a = &p->num;
+ a->sign = e & 1;
+ e >>= 1;
+ if (e == 0)
+ a->expn = BF_EXP_ZERO;
+ else if (e == 1)
+ a->expn = BF_EXP_INF;
+ else if (e == 2)
+ a->expn = BF_EXP_NAN;
+ else if (e >= 3)
+ a->expn = e - 3;
+ else
+ a->expn = e;
+
+ /* mantissa */
+ if (a->expn != BF_EXP_ZERO &&
+ a->expn != BF_EXP_INF &&
+ a->expn != BF_EXP_NAN) {
+ if (bc_get_leb128(s, &len))
+ goto fail;
+ bc_read_trace(s, "len=%" PRId64 "\n", (int64_t)len);
+ if (len == 0) {
+ JS_ThrowInternalError(s->ctx, "invalid bignum length");
+ goto fail;
+ }
+#ifdef CONFIG_BIGNUM
+ if (tag == BC_TAG_BIG_DECIMAL) {
+ l = (len + LIMB_DIGITS - 1) / LIMB_DIGITS;
+ } else
+#endif
+ {
+ l = (len + sizeof(limb_t) - 1) / sizeof(limb_t);
+ }
+ if (bf_resize(a, l)) {
+ JS_ThrowOutOfMemory(s->ctx);
+ goto fail;
+ }
+#ifdef CONFIG_BIGNUM
+ if (tag == BC_TAG_BIG_DECIMAL) {
+ limb_t j;
+ int bpos, d;
+
+ bpos = 0;
+ for(i = 0; i < l; i++) {
+ if (i == 0 && (n = len % LIMB_DIGITS) != 0) {
+ j = LIMB_DIGITS - n;
+ } else {
+ j = 0;
+ }
+ v = 0;
+ for(; j < LIMB_DIGITS; j++) {
+ if (bpos == 0) {
+ if (bc_get_u8(s, &v8))
+ goto fail;
+ d = v8 & 0xf;
+ bpos = 1;
+ } else {
+ d = v8 >> 4;
+ bpos = 0;
+ }
+ if (d >= 10) {
+ JS_ThrowInternalError(s->ctx, "invalid digit");
+ goto fail;
+ }
+ v += mp_pow_dec[j] * d;
+ }
+ a->tab[i] = v;
+ }
+ } else
+#endif /* CONFIG_BIGNUM */
+ {
+ n = len & (sizeof(limb_t) - 1);
+ if (n != 0) {
+ v = 0;
+ for(i = 0; i < n; i++) {
+ if (bc_get_u8(s, &v8))
+ goto fail;
+ v |= (limb_t)v8 << ((sizeof(limb_t) - n + i) * 8);
+ }
+ a->tab[0] = v;
+ i = 1;
+ } else {
+ i = 0;
+ }
+ for(; i < l; i++) {
+#if LIMB_BITS == 32
+ if (bc_get_u32(s, &v))
+ goto fail;
+#else
+ if (bc_get_u64(s, &v))
+ goto fail;
+#endif
+ a->tab[i] = v;
+ }
+ }
+ }
+ bc_read_trace(s, "}\n");
+ return obj;
+ fail:
+ JS_FreeValue(s->ctx, obj);
+ return JS_EXCEPTION;
+}
+
+static JSValue JS_ReadObjectRec(BCReaderState *s);
+
+static int BC_add_object_ref1(BCReaderState *s, JSObject *p)
+{
+ if (s->allow_reference) {
+ if (js_resize_array(s->ctx, (void *)&s->objects,
+ sizeof(s->objects[0]),
+ &s->objects_size, s->objects_count + 1))
+ return -1;
+ s->objects[s->objects_count++] = p;
+ }
+ return 0;
+}
+
+static int BC_add_object_ref(BCReaderState *s, JSValueConst obj)
+{
+ return BC_add_object_ref1(s, JS_VALUE_GET_OBJ(obj));
+}
+
+static JSValue JS_ReadFunctionTag(BCReaderState *s)
+{
+ JSContext *ctx = s->ctx;
+ JSFunctionBytecode bc, *b;
+ JSValue obj = JS_UNDEFINED;
+ uint16_t v16;
+ uint8_t v8;
+ int idx, i, local_count;
+ int function_size, cpool_offset, byte_code_offset;
+ int closure_var_offset, vardefs_offset;
+
+ memset(&bc, 0, sizeof(bc));
+ bc.header.ref_count = 1;
+ //bc.gc_header.mark = 0;
+
+ if (bc_get_u16(s, &v16))
+ goto fail;
+ idx = 0;
+ bc.has_prototype = bc_get_flags(v16, &idx, 1);
+ bc.has_simple_parameter_list = bc_get_flags(v16, &idx, 1);
+ bc.is_derived_class_constructor = bc_get_flags(v16, &idx, 1);
+ bc.need_home_object = bc_get_flags(v16, &idx, 1);
+ bc.func_kind = bc_get_flags(v16, &idx, 2);
+ bc.new_target_allowed = bc_get_flags(v16, &idx, 1);
+ bc.super_call_allowed = bc_get_flags(v16, &idx, 1);
+ bc.super_allowed = bc_get_flags(v16, &idx, 1);
+ bc.arguments_allowed = bc_get_flags(v16, &idx, 1);
+ bc.has_debug = bc_get_flags(v16, &idx, 1);
+ bc.backtrace_barrier = bc_get_flags(v16, &idx, 1);
+ bc.is_direct_or_indirect_eval = bc_get_flags(v16, &idx, 1);
+ bc.read_only_bytecode = s->is_rom_data;
+ if (bc_get_u8(s, &v8))
+ goto fail;
+ bc.js_mode = v8;
+ if (bc_get_atom(s, &bc.func_name)) //@ atom leak if failure
+ goto fail;
+ if (bc_get_leb128_u16(s, &bc.arg_count))
+ goto fail;
+ if (bc_get_leb128_u16(s, &bc.var_count))
+ goto fail;
+ if (bc_get_leb128_u16(s, &bc.defined_arg_count))
+ goto fail;
+ if (bc_get_leb128_u16(s, &bc.stack_size))
+ goto fail;
+ if (bc_get_leb128_int(s, &bc.closure_var_count))
+ goto fail;
+ if (bc_get_leb128_int(s, &bc.cpool_count))
+ goto fail;
+ if (bc_get_leb128_int(s, &bc.byte_code_len))
+ goto fail;
+ if (bc_get_leb128_int(s, &local_count))
+ goto fail;
+
+ if (bc.has_debug) {
+ function_size = sizeof(*b);
+ } else {
+ function_size = offsetof(JSFunctionBytecode, debug);
+ }
+ cpool_offset = function_size;
+ function_size += bc.cpool_count * sizeof(*bc.cpool);
+ vardefs_offset = function_size;
+ function_size += local_count * sizeof(*bc.vardefs);
+ closure_var_offset = function_size;
+ function_size += bc.closure_var_count * sizeof(*bc.closure_var);
+ byte_code_offset = function_size;
+ if (!bc.read_only_bytecode) {
+ function_size += bc.byte_code_len;
+ }
+
+ b = js_mallocz(ctx, function_size);
+ if (!b)
+ return JS_EXCEPTION;
+
+ memcpy(b, &bc, offsetof(JSFunctionBytecode, debug));
+ b->header.ref_count = 1;
+ if (local_count != 0) {
+ b->vardefs = (void *)((uint8_t*)b + vardefs_offset);
+ }
+ if (b->closure_var_count != 0) {
+ b->closure_var = (void *)((uint8_t*)b + closure_var_offset);
+ }
+ if (b->cpool_count != 0) {
+ b->cpool = (void *)((uint8_t*)b + cpool_offset);
+ }
+
+ add_gc_object(ctx->rt, &b->header, JS_GC_OBJ_TYPE_FUNCTION_BYTECODE);
+
+ obj = JS_MKPTR(JS_TAG_FUNCTION_BYTECODE, b);
+
+#ifdef DUMP_READ_OBJECT
+ bc_read_trace(s, "name: "); print_atom(s->ctx, b->func_name); printf("\n");
+#endif
+ bc_read_trace(s, "args=%d vars=%d defargs=%d closures=%d cpool=%d\n",
+ b->arg_count, b->var_count, b->defined_arg_count,
+ b->closure_var_count, b->cpool_count);
+ bc_read_trace(s, "stack=%d bclen=%d locals=%d\n",
+ b->stack_size, b->byte_code_len, local_count);
+
+ if (local_count != 0) {
+ bc_read_trace(s, "vars {\n");
+ for(i = 0; i < local_count; i++) {
+ JSVarDef *vd = &b->vardefs[i];
+ if (bc_get_atom(s, &vd->var_name))
+ goto fail;
+ if (bc_get_leb128_int(s, &vd->scope_level))
+ goto fail;
+ if (bc_get_leb128_int(s, &vd->scope_next))
+ goto fail;
+ vd->scope_next--;
+ if (bc_get_u8(s, &v8))
+ goto fail;
+ idx = 0;
+ vd->var_kind = bc_get_flags(v8, &idx, 4);
+ vd->is_const = bc_get_flags(v8, &idx, 1);
+ vd->is_lexical = bc_get_flags(v8, &idx, 1);
+ vd->is_captured = bc_get_flags(v8, &idx, 1);
+#ifdef DUMP_READ_OBJECT
+ bc_read_trace(s, "name: "); print_atom(s->ctx, vd->var_name); printf("\n");
+#endif
+ }
+ bc_read_trace(s, "}\n");
+ }
+ if (b->closure_var_count != 0) {
+ bc_read_trace(s, "closure vars {\n");
+ for(i = 0; i < b->closure_var_count; i++) {
+ JSClosureVar *cv = &b->closure_var[i];
+ int var_idx;
+ if (bc_get_atom(s, &cv->var_name))
+ goto fail;
+ if (bc_get_leb128_int(s, &var_idx))
+ goto fail;
+ cv->var_idx = var_idx;
+ if (bc_get_u8(s, &v8))
+ goto fail;
+ idx = 0;
+ cv->is_local = bc_get_flags(v8, &idx, 1);
+ cv->is_arg = bc_get_flags(v8, &idx, 1);
+ cv->is_const = bc_get_flags(v8, &idx, 1);
+ cv->is_lexical = bc_get_flags(v8, &idx, 1);
+ cv->var_kind = bc_get_flags(v8, &idx, 4);
+#ifdef DUMP_READ_OBJECT
+ bc_read_trace(s, "name: "); print_atom(s->ctx, cv->var_name); printf("\n");
+#endif
+ }
+ bc_read_trace(s, "}\n");
+ }
+ {
+ bc_read_trace(s, "bytecode {\n");
+ if (JS_ReadFunctionBytecode(s, b, byte_code_offset, b->byte_code_len))
+ goto fail;
+ bc_read_trace(s, "}\n");
+ }
+ if (b->has_debug) {
+ /* read optional debug information */
+ bc_read_trace(s, "debug {\n");
+ if (bc_get_atom(s, &b->debug.filename))
+ goto fail;
+ if (bc_get_leb128_int(s, &b->debug.line_num))
+ goto fail;
+ if (bc_get_leb128_int(s, &b->debug.pc2line_len))
+ goto fail;
+ if (b->debug.pc2line_len) {
+ b->debug.pc2line_buf = js_mallocz(ctx, b->debug.pc2line_len);
+ if (!b->debug.pc2line_buf)
+ goto fail;
+ if (bc_get_buf(s, b->debug.pc2line_buf, b->debug.pc2line_len))
+ goto fail;
+ }
+#ifdef DUMP_READ_OBJECT
+ bc_read_trace(s, "filename: "); print_atom(s->ctx, b->debug.filename); printf("\n");
+#endif
+ bc_read_trace(s, "}\n");
+ }
+ if (b->cpool_count != 0) {
+ bc_read_trace(s, "cpool {\n");
+ for(i = 0; i < b->cpool_count; i++) {
+ JSValue val;
+ val = JS_ReadObjectRec(s);
+ if (JS_IsException(val))
+ goto fail;
+ b->cpool[i] = val;
+ }
+ bc_read_trace(s, "}\n");
+ }
+ b->realm = JS_DupContext(ctx);
+ return obj;
+ fail:
+ JS_FreeValue(ctx, obj);
+ return JS_EXCEPTION;
+}
+
+static JSValue JS_ReadModule(BCReaderState *s)
+{
+ JSContext *ctx = s->ctx;
+ JSValue obj;
+ JSModuleDef *m = NULL;
+ JSAtom module_name;
+ int i;
+ uint8_t v8;
+
+ if (bc_get_atom(s, &module_name))
+ goto fail;
+#ifdef DUMP_READ_OBJECT
+ bc_read_trace(s, "name: "); print_atom(s->ctx, module_name); printf("\n");
+#endif
+ m = js_new_module_def(ctx, module_name);
+ if (!m)
+ goto fail;
+ obj = JS_NewModuleValue(ctx, m);
+ if (bc_get_leb128_int(s, &m->req_module_entries_count))
+ goto fail;
+ if (m->req_module_entries_count != 0) {
+ m->req_module_entries_size = m->req_module_entries_count;
+ m->req_module_entries = js_mallocz(ctx, sizeof(m->req_module_entries[0]) * m->req_module_entries_size);
+ if (!m->req_module_entries)
+ goto fail;
+ for(i = 0; i < m->req_module_entries_count; i++) {
+ JSReqModuleEntry *rme = &m->req_module_entries[i];
+ if (bc_get_atom(s, &rme->module_name))
+ goto fail;
+ }
+ }
+
+ if (bc_get_leb128_int(s, &m->export_entries_count))
+ goto fail;
+ if (m->export_entries_count != 0) {
+ m->export_entries_size = m->export_entries_count;
+ m->export_entries = js_mallocz(ctx, sizeof(m->export_entries[0]) * m->export_entries_size);
+ if (!m->export_entries)
+ goto fail;
+ for(i = 0; i < m->export_entries_count; i++) {
+ JSExportEntry *me = &m->export_entries[i];
+ if (bc_get_u8(s, &v8))
+ goto fail;
+ me->export_type = v8;
+ if (me->export_type == JS_EXPORT_TYPE_LOCAL) {
+ if (bc_get_leb128_int(s, &me->u.local.var_idx))
+ goto fail;
+ } else {
+ if (bc_get_leb128_int(s, &me->u.req_module_idx))
+ goto fail;
+ if (bc_get_atom(s, &me->local_name))
+ goto fail;
+ }
+ if (bc_get_atom(s, &me->export_name))
+ goto fail;
+ }
+ }
+
+ if (bc_get_leb128_int(s, &m->star_export_entries_count))
+ goto fail;
+ if (m->star_export_entries_count != 0) {
+ m->star_export_entries_size = m->star_export_entries_count;
+ m->star_export_entries = js_mallocz(ctx, sizeof(m->star_export_entries[0]) * m->star_export_entries_size);
+ if (!m->star_export_entries)
+ goto fail;
+ for(i = 0; i < m->star_export_entries_count; i++) {
+ JSStarExportEntry *se = &m->star_export_entries[i];
+ if (bc_get_leb128_int(s, &se->req_module_idx))
+ goto fail;
+ }
+ }
+
+ if (bc_get_leb128_int(s, &m->import_entries_count))
+ goto fail;
+ if (m->import_entries_count != 0) {
+ m->import_entries_size = m->import_entries_count;
+ m->import_entries = js_mallocz(ctx, sizeof(m->import_entries[0]) * m->import_entries_size);
+ if (!m->import_entries)
+ goto fail;
+ for(i = 0; i < m->import_entries_count; i++) {
+ JSImportEntry *mi = &m->import_entries[i];
+ if (bc_get_leb128_int(s, &mi->var_idx))
+ goto fail;
+ if (bc_get_atom(s, &mi->import_name))
+ goto fail;
+ if (bc_get_leb128_int(s, &mi->req_module_idx))
+ goto fail;
+ }
+ }
+
+ if (bc_get_u8(s, &v8))
+ goto fail;
+ m->has_tla = (v8 != 0);
+
+ m->func_obj = JS_ReadObjectRec(s);
+ if (JS_IsException(m->func_obj))
+ goto fail;
+ return obj;
+ fail:
+ if (m) {
+ js_free_module_def(ctx, m);
+ }
+ return JS_EXCEPTION;
+}
+
+static JSValue JS_ReadObjectTag(BCReaderState *s)
+{
+ JSContext *ctx = s->ctx;
+ JSValue obj;
+ uint32_t prop_count, i;
+ JSAtom atom;
+ JSValue val;
+ int ret;
+
+ obj = JS_NewObject(ctx);
+ if (BC_add_object_ref(s, obj))
+ goto fail;
+ if (bc_get_leb128(s, &prop_count))
+ goto fail;
+ for(i = 0; i < prop_count; i++) {
+ if (bc_get_atom(s, &atom))
+ goto fail;
+#ifdef DUMP_READ_OBJECT
+ bc_read_trace(s, "propname: "); print_atom(s->ctx, atom); printf("\n");
+#endif
+ val = JS_ReadObjectRec(s);
+ if (JS_IsException(val)) {
+ JS_FreeAtom(ctx, atom);
+ goto fail;
+ }
+ ret = JS_DefinePropertyValue(ctx, obj, atom, val, JS_PROP_C_W_E);
+ JS_FreeAtom(ctx, atom);
+ if (ret < 0)
+ goto fail;
+ }
+ return obj;
+ fail:
+ JS_FreeValue(ctx, obj);
+ return JS_EXCEPTION;
+}
+
+static JSValue JS_ReadArray(BCReaderState *s, int tag)
+{
+ JSContext *ctx = s->ctx;
+ JSValue obj;
+ uint32_t len, i;
+ JSValue val;
+ int ret, prop_flags;
+ BOOL is_template;
+
+ obj = JS_NewArray(ctx);
+ if (BC_add_object_ref(s, obj))
+ goto fail;
+ is_template = (tag == BC_TAG_TEMPLATE_OBJECT);
+ if (bc_get_leb128(s, &len))
+ goto fail;
+ for(i = 0; i < len; i++) {
+ val = JS_ReadObjectRec(s);
+ if (JS_IsException(val))
+ goto fail;
+ if (is_template)
+ prop_flags = JS_PROP_ENUMERABLE;
+ else
+ prop_flags = JS_PROP_C_W_E;
+ ret = JS_DefinePropertyValueUint32(ctx, obj, i, val,
+ prop_flags);
+ if (ret < 0)
+ goto fail;
+ }
+ if (is_template) {
+ val = JS_ReadObjectRec(s);
+ if (JS_IsException(val))
+ goto fail;
+ if (!JS_IsUndefined(val)) {
+ ret = JS_DefinePropertyValue(ctx, obj, JS_ATOM_raw, val, 0);
+ if (ret < 0)
+ goto fail;
+ }
+ JS_PreventExtensions(ctx, obj);
+ }
+ return obj;
+ fail:
+ JS_FreeValue(ctx, obj);
+ return JS_EXCEPTION;
+}
+
+static JSValue JS_ReadTypedArray(BCReaderState *s)
+{
+ JSContext *ctx = s->ctx;
+ JSValue obj = JS_UNDEFINED, array_buffer = JS_UNDEFINED;
+ uint8_t array_tag;
+ JSValueConst args[3];
+ uint32_t offset, len, idx;
+
+ if (bc_get_u8(s, &array_tag))
+ return JS_EXCEPTION;
+ if (array_tag >= JS_TYPED_ARRAY_COUNT)
+ return JS_ThrowTypeError(ctx, "invalid typed array");
+ if (bc_get_leb128(s, &len))
+ return JS_EXCEPTION;
+ if (bc_get_leb128(s, &offset))
+ return JS_EXCEPTION;
+ /* XXX: this hack could be avoided if the typed array could be
+ created before the array buffer */
+ idx = s->objects_count;
+ if (BC_add_object_ref1(s, NULL))
+ goto fail;
+ array_buffer = JS_ReadObjectRec(s);
+ if (JS_IsException(array_buffer))
+ return JS_EXCEPTION;
+ if (!js_get_array_buffer(ctx, array_buffer)) {
+ JS_FreeValue(ctx, array_buffer);
+ return JS_EXCEPTION;
+ }
+ args[0] = array_buffer;
+ args[1] = JS_NewInt64(ctx, offset);
+ args[2] = JS_NewInt64(ctx, len);
+ obj = js_typed_array_constructor(ctx, JS_UNDEFINED,
+ 3, args,
+ JS_CLASS_UINT8C_ARRAY + array_tag);
+ if (JS_IsException(obj))
+ goto fail;
+ if (s->allow_reference) {
+ s->objects[idx] = JS_VALUE_GET_OBJ(obj);
+ }
+ JS_FreeValue(ctx, array_buffer);
+ return obj;
+ fail:
+ JS_FreeValue(ctx, array_buffer);
+ JS_FreeValue(ctx, obj);
+ return JS_EXCEPTION;
+}
+
+static JSValue JS_ReadArrayBuffer(BCReaderState *s)
+{
+ JSContext *ctx = s->ctx;
+ uint32_t byte_length;
+ JSValue obj;
+
+ if (bc_get_leb128(s, &byte_length))
+ return JS_EXCEPTION;
+ if (unlikely(s->buf_end - s->ptr < byte_length)) {
+ bc_read_error_end(s);
+ return JS_EXCEPTION;
+ }
+ obj = JS_NewArrayBufferCopy(ctx, s->ptr, byte_length);
+ if (JS_IsException(obj))
+ goto fail;
+ if (BC_add_object_ref(s, obj))
+ goto fail;
+ s->ptr += byte_length;
+ return obj;
+ fail:
+ JS_FreeValue(ctx, obj);
+ return JS_EXCEPTION;
+}
+
+static JSValue JS_ReadSharedArrayBuffer(BCReaderState *s)
+{
+ JSContext *ctx = s->ctx;
+ uint32_t byte_length;
+ uint8_t *data_ptr;
+ JSValue obj;
+ uint64_t u64;
+
+ if (bc_get_leb128(s, &byte_length))
+ return JS_EXCEPTION;
+ if (bc_get_u64(s, &u64))
+ return JS_EXCEPTION;
+ data_ptr = (uint8_t *)(uintptr_t)u64;
+ /* the SharedArrayBuffer is cloned */
+ obj = js_array_buffer_constructor3(ctx, JS_UNDEFINED, byte_length,
+ JS_CLASS_SHARED_ARRAY_BUFFER,
+ data_ptr,
+ NULL, NULL, FALSE);
+ if (JS_IsException(obj))
+ goto fail;
+ if (BC_add_object_ref(s, obj))
+ goto fail;
+ return obj;
+ fail:
+ JS_FreeValue(ctx, obj);
+ return JS_EXCEPTION;
+}
+
+static JSValue JS_ReadDate(BCReaderState *s)
+{
+ JSContext *ctx = s->ctx;
+ JSValue val, obj = JS_UNDEFINED;
+
+ val = JS_ReadObjectRec(s);
+ if (JS_IsException(val))
+ goto fail;
+ if (!JS_IsNumber(val)) {
+ JS_ThrowTypeError(ctx, "Number tag expected for date");
+ goto fail;
+ }
+ obj = JS_NewObjectProtoClass(ctx, ctx->class_proto[JS_CLASS_DATE],
+ JS_CLASS_DATE);
+ if (JS_IsException(obj))
+ goto fail;
+ if (BC_add_object_ref(s, obj))
+ goto fail;
+ JS_SetObjectData(ctx, obj, val);
+ return obj;
+ fail:
+ JS_FreeValue(ctx, val);
+ JS_FreeValue(ctx, obj);
+ return JS_EXCEPTION;
+}
+
+static JSValue JS_ReadObjectValue(BCReaderState *s)
+{
+ JSContext *ctx = s->ctx;
+ JSValue val, obj = JS_UNDEFINED;
+
+ val = JS_ReadObjectRec(s);
+ if (JS_IsException(val))
+ goto fail;
+ obj = JS_ToObject(ctx, val);
+ if (JS_IsException(obj))
+ goto fail;
+ if (BC_add_object_ref(s, obj))
+ goto fail;
+ JS_FreeValue(ctx, val);
+ return obj;
+ fail:
+ JS_FreeValue(ctx, val);
+ JS_FreeValue(ctx, obj);
+ return JS_EXCEPTION;
+}
+
+static JSValue JS_ReadObjectRec(BCReaderState *s)
+{
+ JSContext *ctx = s->ctx;
+ uint8_t tag;
+ JSValue obj = JS_UNDEFINED;
+
+ if (js_check_stack_overflow(ctx->rt, 0))
+ return JS_ThrowStackOverflow(ctx);
+
+ if (bc_get_u8(s, &tag))
+ return JS_EXCEPTION;
+
+ bc_read_trace(s, "%s {\n", bc_tag_str[tag]);
+
+ switch(tag) {
+ case BC_TAG_NULL:
+ obj = JS_NULL;
+ break;
+ case BC_TAG_UNDEFINED:
+ obj = JS_UNDEFINED;
+ break;
+ case BC_TAG_BOOL_FALSE:
+ case BC_TAG_BOOL_TRUE:
+ obj = JS_NewBool(ctx, tag - BC_TAG_BOOL_FALSE);
+ break;
+ case BC_TAG_INT32:
+ {
+ int32_t val;
+ if (bc_get_sleb128(s, &val))
+ return JS_EXCEPTION;
+ bc_read_trace(s, "%d\n", val);
+ obj = JS_NewInt32(ctx, val);
+ }
+ break;
+ case BC_TAG_FLOAT64:
+ {
+ JSFloat64Union u;
+ if (bc_get_u64(s, &u.u64))
+ return JS_EXCEPTION;
+ bc_read_trace(s, "%g\n", u.d);
+ obj = __JS_NewFloat64(ctx, u.d);
+ }
+ break;
+ case BC_TAG_STRING:
+ {
+ JSString *p;
+ p = JS_ReadString(s);
+ if (!p)
+ return JS_EXCEPTION;
+ obj = JS_MKPTR(JS_TAG_STRING, p);
+ }
+ break;
+ case BC_TAG_FUNCTION_BYTECODE:
+ if (!s->allow_bytecode)
+ goto invalid_tag;
+ obj = JS_ReadFunctionTag(s);
+ break;
+ case BC_TAG_MODULE:
+ if (!s->allow_bytecode)
+ goto invalid_tag;
+ obj = JS_ReadModule(s);
+ break;
+ case BC_TAG_OBJECT:
+ obj = JS_ReadObjectTag(s);
+ break;
+ case BC_TAG_ARRAY:
+ case BC_TAG_TEMPLATE_OBJECT:
+ obj = JS_ReadArray(s, tag);
+ break;
+ case BC_TAG_TYPED_ARRAY:
+ obj = JS_ReadTypedArray(s);
+ break;
+ case BC_TAG_ARRAY_BUFFER:
+ obj = JS_ReadArrayBuffer(s);
+ break;
+ case BC_TAG_SHARED_ARRAY_BUFFER:
+ if (!s->allow_sab || !ctx->rt->sab_funcs.sab_dup)
+ goto invalid_tag;
+ obj = JS_ReadSharedArrayBuffer(s);
+ break;
+ case BC_TAG_DATE:
+ obj = JS_ReadDate(s);
+ break;
+ case BC_TAG_OBJECT_VALUE:
+ obj = JS_ReadObjectValue(s);
+ break;
+ case BC_TAG_BIG_INT:
+#ifdef CONFIG_BIGNUM
+ case BC_TAG_BIG_FLOAT:
+ case BC_TAG_BIG_DECIMAL:
+#endif
+ obj = JS_ReadBigNum(s, tag);
+ break;
+ case BC_TAG_OBJECT_REFERENCE:
+ {
+ uint32_t val;
+ if (!s->allow_reference)
+ return JS_ThrowSyntaxError(ctx, "object references are not allowed");
+ if (bc_get_leb128(s, &val))
+ return JS_EXCEPTION;
+ bc_read_trace(s, "%u\n", val);
+ if (val >= s->objects_count) {
+ return JS_ThrowSyntaxError(ctx, "invalid object reference (%u >= %u)",
+ val, s->objects_count);
+ }
+ obj = JS_DupValue(ctx, JS_MKPTR(JS_TAG_OBJECT, s->objects[val]));
+ }
+ break;
+ default:
+ invalid_tag:
+ return JS_ThrowSyntaxError(ctx, "invalid tag (tag=%d pos=%u)",
+ tag, (unsigned int)(s->ptr - s->buf_start));
+ }
+ bc_read_trace(s, "}\n");
+ return obj;
+}
+
+static int JS_ReadObjectAtoms(BCReaderState *s)
+{
+ uint8_t v8;
+ JSString *p;
+ int i;
+ JSAtom atom;
+
+ if (bc_get_u8(s, &v8))
+ return -1;
+ if (v8 != BC_VERSION) {
+ JS_ThrowSyntaxError(s->ctx, "invalid version (%d expected=%d)",
+ v8, BC_VERSION);
+ return -1;
+ }
+ if (bc_get_leb128(s, &s->idx_to_atom_count))
+ return -1;
+
+ bc_read_trace(s, "%d atom indexes {\n", s->idx_to_atom_count);
+
+ if (s->idx_to_atom_count != 0) {
+ s->idx_to_atom = js_mallocz(s->ctx, s->idx_to_atom_count *
+ sizeof(s->idx_to_atom[0]));
+ if (!s->idx_to_atom)
+ return s->error_state = -1;
+ }
+ for(i = 0; i < s->idx_to_atom_count; i++) {
+ p = JS_ReadString(s);
+ if (!p)
+ return -1;
+ atom = JS_NewAtomStr(s->ctx, p);
+ if (atom == JS_ATOM_NULL)
+ return s->error_state = -1;
+ s->idx_to_atom[i] = atom;
+ if (s->is_rom_data && (atom != (i + s->first_atom)))
+ s->is_rom_data = FALSE; /* atoms must be relocated */
+ }
+ bc_read_trace(s, "}\n");
+ return 0;
+}
+
+static void bc_reader_free(BCReaderState *s)
+{
+ int i;
+ if (s->idx_to_atom) {
+ for(i = 0; i < s->idx_to_atom_count; i++) {
+ JS_FreeAtom(s->ctx, s->idx_to_atom[i]);
+ }
+ js_free(s->ctx, s->idx_to_atom);
+ }
+ js_free(s->ctx, s->objects);
+}
+
+JSValue JS_ReadObject(JSContext *ctx, const uint8_t *buf, size_t buf_len,
+ int flags)
+{
+ BCReaderState ss, *s = &ss;
+ JSValue obj;
+
+ ctx->binary_object_count += 1;
+ ctx->binary_object_size += buf_len;
+
+ memset(s, 0, sizeof(*s));
+ s->ctx = ctx;
+ s->buf_start = buf;
+ s->buf_end = buf + buf_len;
+ s->ptr = buf;
+ s->allow_bytecode = ((flags & JS_READ_OBJ_BYTECODE) != 0);
+ s->is_rom_data = ((flags & JS_READ_OBJ_ROM_DATA) != 0);
+ s->allow_sab = ((flags & JS_READ_OBJ_SAB) != 0);
+ s->allow_reference = ((flags & JS_READ_OBJ_REFERENCE) != 0);
+ if (s->allow_bytecode)
+ s->first_atom = JS_ATOM_END;
+ else
+ s->first_atom = 1;
+ if (JS_ReadObjectAtoms(s)) {
+ obj = JS_EXCEPTION;
+ } else {
+ obj = JS_ReadObjectRec(s);
+ }
+ bc_reader_free(s);
+ return obj;
+}
+
+/*******************************************************************/
+/* runtime functions & objects */
+
+static JSValue js_string_constructor(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv);
+static JSValue js_boolean_constructor(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv);
+static JSValue js_number_constructor(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv);
+
+static int check_function(JSContext *ctx, JSValueConst obj)
+{
+ if (likely(JS_IsFunction(ctx, obj)))
+ return 0;
+ JS_ThrowTypeError(ctx, "not a function");
+ return -1;
+}
+
+static int check_exception_free(JSContext *ctx, JSValue obj)
+{
+ JS_FreeValue(ctx, obj);
+ return JS_IsException(obj);
+}
+
+static JSAtom find_atom(JSContext *ctx, const char *name)
+{
+ JSAtom atom;
+ int len;
+
+ if (*name == '[') {
+ name++;
+ len = strlen(name) - 1;
+ /* We assume 8 bit non null strings, which is the case for these
+ symbols */
+ for(atom = JS_ATOM_Symbol_toPrimitive; atom < JS_ATOM_END; atom++) {
+ JSAtomStruct *p = ctx->rt->atom_array[atom];
+ JSString *str = p;
+ if (str->len == len && !memcmp(str->u.str8, name, len))
+ return JS_DupAtom(ctx, atom);
+ }
+ abort();
+ } else {
+ atom = JS_NewAtom(ctx, name);
+ }
+ return atom;
+}
+
+static JSValue JS_InstantiateFunctionListItem2(JSContext *ctx, JSObject *p,
+ JSAtom atom, void *opaque)
+{
+ const JSCFunctionListEntry *e = opaque;
+ JSValue val;
+
+ switch(e->def_type) {
+ case JS_DEF_CFUNC:
+ val = JS_NewCFunction2(ctx, e->u.func.cfunc.generic,
+ e->name, e->u.func.length, e->u.func.cproto, e->magic);
+ break;
+ case JS_DEF_PROP_STRING:
+ val = JS_NewAtomString(ctx, e->u.str);
+ break;
+ case JS_DEF_OBJECT:
+ val = JS_NewObject(ctx);
+ JS_SetPropertyFunctionList(ctx, val, e->u.prop_list.tab, e->u.prop_list.len);
+ break;
+ default:
+ abort();
+ }
+ return val;
+}
+
+static int JS_InstantiateFunctionListItem(JSContext *ctx, JSValueConst obj,
+ JSAtom atom,
+ const JSCFunctionListEntry *e)
+{
+ JSValue val;
+ int prop_flags = e->prop_flags;
+
+ switch(e->def_type) {
+ case JS_DEF_ALIAS: /* using autoinit for aliases is not safe */
+ {
+ JSAtom atom1 = find_atom(ctx, e->u.alias.name);
+ switch (e->u.alias.base) {
+ case -1:
+ val = JS_GetProperty(ctx, obj, atom1);
+ break;
+ case 0:
+ val = JS_GetProperty(ctx, ctx->global_obj, atom1);
+ break;
+ case 1:
+ val = JS_GetProperty(ctx, ctx->class_proto[JS_CLASS_ARRAY], atom1);
+ break;
+ default:
+ abort();
+ }
+ JS_FreeAtom(ctx, atom1);
+ if (atom == JS_ATOM_Symbol_toPrimitive) {
+ /* Symbol.toPrimitive functions are not writable */
+ prop_flags = JS_PROP_CONFIGURABLE;
+ } else if (atom == JS_ATOM_Symbol_hasInstance) {
+ /* Function.prototype[Symbol.hasInstance] is not writable nor configurable */
+ prop_flags = 0;
+ }
+ }
+ break;
+ case JS_DEF_CFUNC:
+ if (atom == JS_ATOM_Symbol_toPrimitive) {
+ /* Symbol.toPrimitive functions are not writable */
+ prop_flags = JS_PROP_CONFIGURABLE;
+ } else if (atom == JS_ATOM_Symbol_hasInstance) {
+ /* Function.prototype[Symbol.hasInstance] is not writable nor configurable */
+ prop_flags = 0;
+ }
+ JS_DefineAutoInitProperty(ctx, obj, atom, JS_AUTOINIT_ID_PROP,
+ (void *)e, prop_flags);
+ return 0;
+ case JS_DEF_CGETSET: /* XXX: use autoinit again ? */
+ case JS_DEF_CGETSET_MAGIC:
+ {
+ JSValue getter, setter;
+ char buf[64];
+
+ getter = JS_UNDEFINED;
+ if (e->u.getset.get.generic) {
+ snprintf(buf, sizeof(buf), "get %s", e->name);
+ getter = JS_NewCFunction2(ctx, e->u.getset.get.generic,
+ buf, 0, e->def_type == JS_DEF_CGETSET_MAGIC ? JS_CFUNC_getter_magic : JS_CFUNC_getter,
+ e->magic);
+ }
+ setter = JS_UNDEFINED;
+ if (e->u.getset.set.generic) {
+ snprintf(buf, sizeof(buf), "set %s", e->name);
+ setter = JS_NewCFunction2(ctx, e->u.getset.set.generic,
+ buf, 1, e->def_type == JS_DEF_CGETSET_MAGIC ? JS_CFUNC_setter_magic : JS_CFUNC_setter,
+ e->magic);
+ }
+ JS_DefinePropertyGetSet(ctx, obj, atom, getter, setter, prop_flags);
+ return 0;
+ }
+ break;
+ case JS_DEF_PROP_INT32:
+ val = JS_NewInt32(ctx, e->u.i32);
+ break;
+ case JS_DEF_PROP_INT64:
+ val = JS_NewInt64(ctx, e->u.i64);
+ break;
+ case JS_DEF_PROP_DOUBLE:
+ val = __JS_NewFloat64(ctx, e->u.f64);
+ break;
+ case JS_DEF_PROP_UNDEFINED:
+ val = JS_UNDEFINED;
+ break;
+ case JS_DEF_PROP_STRING:
+ case JS_DEF_OBJECT:
+ JS_DefineAutoInitProperty(ctx, obj, atom, JS_AUTOINIT_ID_PROP,
+ (void *)e, prop_flags);
+ return 0;
+ default:
+ abort();
+ }
+ JS_DefinePropertyValue(ctx, obj, atom, val, prop_flags);
+ return 0;
+}
+
+void JS_SetPropertyFunctionList(JSContext *ctx, JSValueConst obj,
+ const JSCFunctionListEntry *tab, int len)
+{
+ int i;
+
+ for (i = 0; i < len; i++) {
+ const JSCFunctionListEntry *e = &tab[i];
+ JSAtom atom = find_atom(ctx, e->name);
+ JS_InstantiateFunctionListItem(ctx, obj, atom, e);
+ JS_FreeAtom(ctx, atom);
+ }
+}
+
+int JS_AddModuleExportList(JSContext *ctx, JSModuleDef *m,
+ const JSCFunctionListEntry *tab, int len)
+{
+ int i;
+ for(i = 0; i < len; i++) {
+ if (JS_AddModuleExport(ctx, m, tab[i].name))
+ return -1;
+ }
+ return 0;
+}
+
+int JS_SetModuleExportList(JSContext *ctx, JSModuleDef *m,
+ const JSCFunctionListEntry *tab, int len)
+{
+ int i;
+ JSValue val;
+
+ for(i = 0; i < len; i++) {
+ const JSCFunctionListEntry *e = &tab[i];
+ switch(e->def_type) {
+ case JS_DEF_CFUNC:
+ val = JS_NewCFunction2(ctx, e->u.func.cfunc.generic,
+ e->name, e->u.func.length, e->u.func.cproto, e->magic);
+ break;
+ case JS_DEF_PROP_STRING:
+ val = JS_NewString(ctx, e->u.str);
+ break;
+ case JS_DEF_PROP_INT32:
+ val = JS_NewInt32(ctx, e->u.i32);
+ break;
+ case JS_DEF_PROP_INT64:
+ val = JS_NewInt64(ctx, e->u.i64);
+ break;
+ case JS_DEF_PROP_DOUBLE:
+ val = __JS_NewFloat64(ctx, e->u.f64);
+ break;
+ case JS_DEF_OBJECT:
+ val = JS_NewObject(ctx);
+ JS_SetPropertyFunctionList(ctx, val, e->u.prop_list.tab, e->u.prop_list.len);
+ break;
+ default:
+ abort();
+ }
+ if (JS_SetModuleExport(ctx, m, e->name, val))
+ return -1;
+ }
+ return 0;
+}
+
+/* Note: 'func_obj' is not necessarily a constructor */
+static void JS_SetConstructor2(JSContext *ctx,
+ JSValueConst func_obj,
+ JSValueConst proto,
+ int proto_flags, int ctor_flags)
+{
+ JS_DefinePropertyValue(ctx, func_obj, JS_ATOM_prototype,
+ JS_DupValue(ctx, proto), proto_flags);
+ JS_DefinePropertyValue(ctx, proto, JS_ATOM_constructor,
+ JS_DupValue(ctx, func_obj),
+ ctor_flags);
+ set_cycle_flag(ctx, func_obj);
+ set_cycle_flag(ctx, proto);
+}
+
+void JS_SetConstructor(JSContext *ctx, JSValueConst func_obj,
+ JSValueConst proto)
+{
+ JS_SetConstructor2(ctx, func_obj, proto,
+ 0, JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE);
+}
+
+static void JS_NewGlobalCConstructor2(JSContext *ctx,
+ JSValue func_obj,
+ const char *name,
+ JSValueConst proto)
+{
+ JS_DefinePropertyValueStr(ctx, ctx->global_obj, name,
+ JS_DupValue(ctx, func_obj),
+ JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE);
+ JS_SetConstructor(ctx, func_obj, proto);
+ JS_FreeValue(ctx, func_obj);
+}
+
+static JSValueConst JS_NewGlobalCConstructor(JSContext *ctx, const char *name,
+ JSCFunction *func, int length,
+ JSValueConst proto)
+{
+ JSValue func_obj;
+ func_obj = JS_NewCFunction2(ctx, func, name, length, JS_CFUNC_constructor_or_func, 0);
+ JS_NewGlobalCConstructor2(ctx, func_obj, name, proto);
+ return func_obj;
+}
+
+static JSValueConst JS_NewGlobalCConstructorOnly(JSContext *ctx, const char *name,
+ JSCFunction *func, int length,
+ JSValueConst proto)
+{
+ JSValue func_obj;
+ func_obj = JS_NewCFunction2(ctx, func, name, length, JS_CFUNC_constructor, 0);
+ JS_NewGlobalCConstructor2(ctx, func_obj, name, proto);
+ return func_obj;
+}
+
+static JSValue js_global_eval(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ return JS_EvalObject(ctx, ctx->global_obj, argv[0], JS_EVAL_TYPE_INDIRECT, -1);
+}
+
+static JSValue js_global_isNaN(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ double d;
+
+ /* XXX: does this work for bigfloat? */
+ if (unlikely(JS_ToFloat64(ctx, &d, argv[0])))
+ return JS_EXCEPTION;
+ return JS_NewBool(ctx, isnan(d));
+}
+
+static JSValue js_global_isFinite(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ double d;
+ if (unlikely(JS_ToFloat64(ctx, &d, argv[0])))
+ return JS_EXCEPTION;
+ return JS_NewBool(ctx, isfinite(d));
+}
+
+/* Object class */
+
+static JSValue JS_ToObject(JSContext *ctx, JSValueConst val)
+{
+ int tag = JS_VALUE_GET_NORM_TAG(val);
+ JSValue obj;
+
+ switch(tag) {
+ default:
+ case JS_TAG_NULL:
+ case JS_TAG_UNDEFINED:
+ return JS_ThrowTypeError(ctx, "cannot convert to object");
+ case JS_TAG_OBJECT:
+ case JS_TAG_EXCEPTION:
+ return JS_DupValue(ctx, val);
+ case JS_TAG_BIG_INT:
+ obj = JS_NewObjectClass(ctx, JS_CLASS_BIG_INT);
+ goto set_value;
+#ifdef CONFIG_BIGNUM
+ case JS_TAG_BIG_FLOAT:
+ obj = JS_NewObjectClass(ctx, JS_CLASS_BIG_FLOAT);
+ goto set_value;
+ case JS_TAG_BIG_DECIMAL:
+ obj = JS_NewObjectClass(ctx, JS_CLASS_BIG_DECIMAL);
+ goto set_value;
+#endif
+ case JS_TAG_INT:
+ case JS_TAG_FLOAT64:
+ obj = JS_NewObjectClass(ctx, JS_CLASS_NUMBER);
+ goto set_value;
+ case JS_TAG_STRING:
+ /* XXX: should call the string constructor */
+ {
+ JSString *p1 = JS_VALUE_GET_STRING(val);
+ obj = JS_NewObjectClass(ctx, JS_CLASS_STRING);
+ JS_DefinePropertyValue(ctx, obj, JS_ATOM_length, JS_NewInt32(ctx, p1->len), 0);
+ }
+ goto set_value;
+ case JS_TAG_BOOL:
+ obj = JS_NewObjectClass(ctx, JS_CLASS_BOOLEAN);
+ goto set_value;
+ case JS_TAG_SYMBOL:
+ obj = JS_NewObjectClass(ctx, JS_CLASS_SYMBOL);
+ set_value:
+ if (!JS_IsException(obj))
+ JS_SetObjectData(ctx, obj, JS_DupValue(ctx, val));
+ return obj;
+ }
+}
+
+static JSValue JS_ToObjectFree(JSContext *ctx, JSValue val)
+{
+ JSValue obj = JS_ToObject(ctx, val);
+ JS_FreeValue(ctx, val);
+ return obj;
+}
+
+static int js_obj_to_desc(JSContext *ctx, JSPropertyDescriptor *d,
+ JSValueConst desc)
+{
+ JSValue val, getter, setter;
+ int flags;
+
+ if (!JS_IsObject(desc)) {
+ JS_ThrowTypeErrorNotAnObject(ctx);
+ return -1;
+ }
+ flags = 0;
+ val = JS_UNDEFINED;
+ getter = JS_UNDEFINED;
+ setter = JS_UNDEFINED;
+ if (JS_HasProperty(ctx, desc, JS_ATOM_configurable)) {
+ JSValue prop = JS_GetProperty(ctx, desc, JS_ATOM_configurable);
+ if (JS_IsException(prop))
+ goto fail;
+ flags |= JS_PROP_HAS_CONFIGURABLE;
+ if (JS_ToBoolFree(ctx, prop))
+ flags |= JS_PROP_CONFIGURABLE;
+ }
+ if (JS_HasProperty(ctx, desc, JS_ATOM_writable)) {
+ JSValue prop = JS_GetProperty(ctx, desc, JS_ATOM_writable);
+ if (JS_IsException(prop))
+ goto fail;
+ flags |= JS_PROP_HAS_WRITABLE;
+ if (JS_ToBoolFree(ctx, prop))
+ flags |= JS_PROP_WRITABLE;
+ }
+ if (JS_HasProperty(ctx, desc, JS_ATOM_enumerable)) {
+ JSValue prop = JS_GetProperty(ctx, desc, JS_ATOM_enumerable);
+ if (JS_IsException(prop))
+ goto fail;
+ flags |= JS_PROP_HAS_ENUMERABLE;
+ if (JS_ToBoolFree(ctx, prop))
+ flags |= JS_PROP_ENUMERABLE;
+ }
+ if (JS_HasProperty(ctx, desc, JS_ATOM_value)) {
+ flags |= JS_PROP_HAS_VALUE;
+ val = JS_GetProperty(ctx, desc, JS_ATOM_value);
+ if (JS_IsException(val))
+ goto fail;
+ }
+ if (JS_HasProperty(ctx, desc, JS_ATOM_get)) {
+ flags |= JS_PROP_HAS_GET;
+ getter = JS_GetProperty(ctx, desc, JS_ATOM_get);
+ if (JS_IsException(getter) ||
+ !(JS_IsUndefined(getter) || JS_IsFunction(ctx, getter))) {
+ JS_ThrowTypeError(ctx, "invalid getter");
+ goto fail;
+ }
+ }
+ if (JS_HasProperty(ctx, desc, JS_ATOM_set)) {
+ flags |= JS_PROP_HAS_SET;
+ setter = JS_GetProperty(ctx, desc, JS_ATOM_set);
+ if (JS_IsException(setter) ||
+ !(JS_IsUndefined(setter) || JS_IsFunction(ctx, setter))) {
+ JS_ThrowTypeError(ctx, "invalid setter");
+ goto fail;
+ }
+ }
+ if ((flags & (JS_PROP_HAS_SET | JS_PROP_HAS_GET)) &&
+ (flags & (JS_PROP_HAS_VALUE | JS_PROP_HAS_WRITABLE))) {
+ JS_ThrowTypeError(ctx, "cannot have setter/getter and value or writable");
+ goto fail;
+ }
+ d->flags = flags;
+ d->value = val;
+ d->getter = getter;
+ d->setter = setter;
+ return 0;
+ fail:
+ JS_FreeValue(ctx, val);
+ JS_FreeValue(ctx, getter);
+ JS_FreeValue(ctx, setter);
+ return -1;
+}
+
+static __exception int JS_DefinePropertyDesc(JSContext *ctx, JSValueConst obj,
+ JSAtom prop, JSValueConst desc,
+ int flags)
+{
+ JSPropertyDescriptor d;
+ int ret;
+
+ if (js_obj_to_desc(ctx, &d, desc) < 0)
+ return -1;
+
+ ret = JS_DefineProperty(ctx, obj, prop,
+ d.value, d.getter, d.setter, d.flags | flags);
+ js_free_desc(ctx, &d);
+ return ret;
+}
+
+static __exception int JS_ObjectDefineProperties(JSContext *ctx,
+ JSValueConst obj,
+ JSValueConst properties)
+{
+ JSValue props, desc;
+ JSObject *p;
+ JSPropertyEnum *atoms;
+ uint32_t len, i;
+ int ret = -1;
+
+ if (!JS_IsObject(obj)) {
+ JS_ThrowTypeErrorNotAnObject(ctx);
+ return -1;
+ }
+ desc = JS_UNDEFINED;
+ props = JS_ToObject(ctx, properties);
+ if (JS_IsException(props))
+ return -1;
+ p = JS_VALUE_GET_OBJ(props);
+ if (JS_GetOwnPropertyNamesInternal(ctx, &atoms, &len, p, JS_GPN_ENUM_ONLY | JS_GPN_STRING_MASK | JS_GPN_SYMBOL_MASK) < 0)
+ goto exception;
+ for(i = 0; i < len; i++) {
+ JS_FreeValue(ctx, desc);
+ desc = JS_GetProperty(ctx, props, atoms[i].atom);
+ if (JS_IsException(desc))
+ goto exception;
+ if (JS_DefinePropertyDesc(ctx, obj, atoms[i].atom, desc, JS_PROP_THROW) < 0)
+ goto exception;
+ }
+ ret = 0;
+
+exception:
+ js_free_prop_enum(ctx, atoms, len);
+ JS_FreeValue(ctx, props);
+ JS_FreeValue(ctx, desc);
+ return ret;
+}
+
+static JSValue js_object_constructor(JSContext *ctx, JSValueConst new_target,
+ int argc, JSValueConst *argv)
+{
+ JSValue ret;
+ if (!JS_IsUndefined(new_target) &&
+ JS_VALUE_GET_OBJ(new_target) !=
+ JS_VALUE_GET_OBJ(JS_GetActiveFunction(ctx))) {
+ ret = js_create_from_ctor(ctx, new_target, JS_CLASS_OBJECT);
+ } else {
+ int tag = JS_VALUE_GET_NORM_TAG(argv[0]);
+ switch(tag) {
+ case JS_TAG_NULL:
+ case JS_TAG_UNDEFINED:
+ ret = JS_NewObject(ctx);
+ break;
+ default:
+ ret = JS_ToObject(ctx, argv[0]);
+ break;
+ }
+ }
+ return ret;
+}
+
+static JSValue js_object_create(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValueConst proto, props;
+ JSValue obj;
+
+ proto = argv[0];
+ if (!JS_IsObject(proto) && !JS_IsNull(proto))
+ return JS_ThrowTypeError(ctx, "not a prototype");
+ obj = JS_NewObjectProto(ctx, proto);
+ if (JS_IsException(obj))
+ return JS_EXCEPTION;
+ props = argv[1];
+ if (!JS_IsUndefined(props)) {
+ if (JS_ObjectDefineProperties(ctx, obj, props)) {
+ JS_FreeValue(ctx, obj);
+ return JS_EXCEPTION;
+ }
+ }
+ return obj;
+}
+
+static JSValue js_object_getPrototypeOf(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int magic)
+{
+ JSValueConst val;
+
+ val = argv[0];
+ if (JS_VALUE_GET_TAG(val) != JS_TAG_OBJECT) {
+ /* ES6 feature non compatible with ES5.1: primitive types are
+ accepted */
+ if (magic || JS_VALUE_GET_TAG(val) == JS_TAG_NULL ||
+ JS_VALUE_GET_TAG(val) == JS_TAG_UNDEFINED)
+ return JS_ThrowTypeErrorNotAnObject(ctx);
+ }
+ return JS_GetPrototype(ctx, val);
+}
+
+static JSValue js_object_setPrototypeOf(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValueConst obj;
+ obj = argv[0];
+ if (JS_SetPrototypeInternal(ctx, obj, argv[1], TRUE) < 0)
+ return JS_EXCEPTION;
+ return JS_DupValue(ctx, obj);
+}
+
+/* magic = 1 if called as Reflect.defineProperty */
+static JSValue js_object_defineProperty(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int magic)
+{
+ JSValueConst obj, prop, desc;
+ int ret, flags;
+ JSAtom atom;
+
+ obj = argv[0];
+ prop = argv[1];
+ desc = argv[2];
+
+ if (JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT)
+ return JS_ThrowTypeErrorNotAnObject(ctx);
+ atom = JS_ValueToAtom(ctx, prop);
+ if (unlikely(atom == JS_ATOM_NULL))
+ return JS_EXCEPTION;
+ flags = 0;
+ if (!magic)
+ flags |= JS_PROP_THROW;
+ ret = JS_DefinePropertyDesc(ctx, obj, atom, desc, flags);
+ JS_FreeAtom(ctx, atom);
+ if (ret < 0) {
+ return JS_EXCEPTION;
+ } else if (magic) {
+ return JS_NewBool(ctx, ret);
+ } else {
+ return JS_DupValue(ctx, obj);
+ }
+}
+
+static JSValue js_object_defineProperties(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ // defineProperties(obj, properties)
+ JSValueConst obj = argv[0];
+
+ if (JS_ObjectDefineProperties(ctx, obj, argv[1]))
+ return JS_EXCEPTION;
+ else
+ return JS_DupValue(ctx, obj);
+}
+
+/* magic = 1 if called as __defineSetter__ */
+static JSValue js_object___defineGetter__(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int magic)
+{
+ JSValue obj;
+ JSValueConst prop, value, get, set;
+ int ret, flags;
+ JSAtom atom;
+
+ prop = argv[0];
+ value = argv[1];
+
+ obj = JS_ToObject(ctx, this_val);
+ if (JS_IsException(obj))
+ return JS_EXCEPTION;
+
+ if (check_function(ctx, value)) {
+ JS_FreeValue(ctx, obj);
+ return JS_EXCEPTION;
+ }
+ atom = JS_ValueToAtom(ctx, prop);
+ if (unlikely(atom == JS_ATOM_NULL)) {
+ JS_FreeValue(ctx, obj);
+ return JS_EXCEPTION;
+ }
+ flags = JS_PROP_THROW |
+ JS_PROP_HAS_ENUMERABLE | JS_PROP_ENUMERABLE |
+ JS_PROP_HAS_CONFIGURABLE | JS_PROP_CONFIGURABLE;
+ if (magic) {
+ get = JS_UNDEFINED;
+ set = value;
+ flags |= JS_PROP_HAS_SET;
+ } else {
+ get = value;
+ set = JS_UNDEFINED;
+ flags |= JS_PROP_HAS_GET;
+ }
+ ret = JS_DefineProperty(ctx, obj, atom, JS_UNDEFINED, get, set, flags);
+ JS_FreeValue(ctx, obj);
+ JS_FreeAtom(ctx, atom);
+ if (ret < 0) {
+ return JS_EXCEPTION;
+ } else {
+ return JS_UNDEFINED;
+ }
+}
+
+static JSValue js_object_getOwnPropertyDescriptor(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int magic)
+{
+ JSValueConst prop;
+ JSAtom atom;
+ JSValue ret, obj;
+ JSPropertyDescriptor desc;
+ int res, flags;
+
+ if (magic) {
+ /* Reflect.getOwnPropertyDescriptor case */
+ if (JS_VALUE_GET_TAG(argv[0]) != JS_TAG_OBJECT)
+ return JS_ThrowTypeErrorNotAnObject(ctx);
+ obj = JS_DupValue(ctx, argv[0]);
+ } else {
+ obj = JS_ToObject(ctx, argv[0]);
+ if (JS_IsException(obj))
+ return obj;
+ }
+ prop = argv[1];
+ atom = JS_ValueToAtom(ctx, prop);
+ if (unlikely(atom == JS_ATOM_NULL))
+ goto exception;
+ ret = JS_UNDEFINED;
+ if (JS_VALUE_GET_TAG(obj) == JS_TAG_OBJECT) {
+ res = JS_GetOwnPropertyInternal(ctx, &desc, JS_VALUE_GET_OBJ(obj), atom);
+ if (res < 0)
+ goto exception;
+ if (res) {
+ ret = JS_NewObject(ctx);
+ if (JS_IsException(ret))
+ goto exception1;
+ flags = JS_PROP_C_W_E | JS_PROP_THROW;
+ if (desc.flags & JS_PROP_GETSET) {
+ if (JS_DefinePropertyValue(ctx, ret, JS_ATOM_get, JS_DupValue(ctx, desc.getter), flags) < 0
+ || JS_DefinePropertyValue(ctx, ret, JS_ATOM_set, JS_DupValue(ctx, desc.setter), flags) < 0)
+ goto exception1;
+ } else {
+ if (JS_DefinePropertyValue(ctx, ret, JS_ATOM_value, JS_DupValue(ctx, desc.value), flags) < 0
+ || JS_DefinePropertyValue(ctx, ret, JS_ATOM_writable,
+ JS_NewBool(ctx, desc.flags & JS_PROP_WRITABLE), flags) < 0)
+ goto exception1;
+ }
+ if (JS_DefinePropertyValue(ctx, ret, JS_ATOM_enumerable,
+ JS_NewBool(ctx, desc.flags & JS_PROP_ENUMERABLE), flags) < 0
+ || JS_DefinePropertyValue(ctx, ret, JS_ATOM_configurable,
+ JS_NewBool(ctx, desc.flags & JS_PROP_CONFIGURABLE), flags) < 0)
+ goto exception1;
+ js_free_desc(ctx, &desc);
+ }
+ }
+ JS_FreeAtom(ctx, atom);
+ JS_FreeValue(ctx, obj);
+ return ret;
+
+exception1:
+ js_free_desc(ctx, &desc);
+ JS_FreeValue(ctx, ret);
+exception:
+ JS_FreeAtom(ctx, atom);
+ JS_FreeValue(ctx, obj);
+ return JS_EXCEPTION;
+}
+
+static JSValue js_object_getOwnPropertyDescriptors(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ //getOwnPropertyDescriptors(obj)
+ JSValue obj, r;
+ JSObject *p;
+ JSPropertyEnum *props;
+ uint32_t len, i;
+
+ r = JS_UNDEFINED;
+ obj = JS_ToObject(ctx, argv[0]);
+ if (JS_IsException(obj))
+ return JS_EXCEPTION;
+
+ p = JS_VALUE_GET_OBJ(obj);
+ if (JS_GetOwnPropertyNamesInternal(ctx, &props, &len, p,
+ JS_GPN_STRING_MASK | JS_GPN_SYMBOL_MASK))
+ goto exception;
+ r = JS_NewObject(ctx);
+ if (JS_IsException(r))
+ goto exception;
+ for(i = 0; i < len; i++) {
+ JSValue atomValue, desc;
+ JSValueConst args[2];
+
+ atomValue = JS_AtomToValue(ctx, props[i].atom);
+ if (JS_IsException(atomValue))
+ goto exception;
+ args[0] = obj;
+ args[1] = atomValue;
+ desc = js_object_getOwnPropertyDescriptor(ctx, JS_UNDEFINED, 2, args, 0);
+ JS_FreeValue(ctx, atomValue);
+ if (JS_IsException(desc))
+ goto exception;
+ if (!JS_IsUndefined(desc)) {
+ if (JS_DefinePropertyValue(ctx, r, props[i].atom, desc,
+ JS_PROP_C_W_E | JS_PROP_THROW) < 0)
+ goto exception;
+ }
+ }
+ js_free_prop_enum(ctx, props, len);
+ JS_FreeValue(ctx, obj);
+ return r;
+
+exception:
+ js_free_prop_enum(ctx, props, len);
+ JS_FreeValue(ctx, obj);
+ JS_FreeValue(ctx, r);
+ return JS_EXCEPTION;
+}
+
+static JSValue JS_GetOwnPropertyNames2(JSContext *ctx, JSValueConst obj1,
+ int flags, int kind)
+{
+ JSValue obj, r, val, key, value;
+ JSObject *p;
+ JSPropertyEnum *atoms;
+ uint32_t len, i, j;
+
+ r = JS_UNDEFINED;
+ val = JS_UNDEFINED;
+ obj = JS_ToObject(ctx, obj1);
+ if (JS_IsException(obj))
+ return JS_EXCEPTION;
+ p = JS_VALUE_GET_OBJ(obj);
+ if (JS_GetOwnPropertyNamesInternal(ctx, &atoms, &len, p, flags & ~JS_GPN_ENUM_ONLY))
+ goto exception;
+ r = JS_NewArray(ctx);
+ if (JS_IsException(r))
+ goto exception;
+ for(j = i = 0; i < len; i++) {
+ JSAtom atom = atoms[i].atom;
+ if (flags & JS_GPN_ENUM_ONLY) {
+ JSPropertyDescriptor desc;
+ int res;
+
+ /* Check if property is still enumerable */
+ res = JS_GetOwnPropertyInternal(ctx, &desc, p, atom);
+ if (res < 0)
+ goto exception;
+ if (!res)
+ continue;
+ js_free_desc(ctx, &desc);
+ if (!(desc.flags & JS_PROP_ENUMERABLE))
+ continue;
+ }
+ switch(kind) {
+ default:
+ case JS_ITERATOR_KIND_KEY:
+ val = JS_AtomToValue(ctx, atom);
+ if (JS_IsException(val))
+ goto exception;
+ break;
+ case JS_ITERATOR_KIND_VALUE:
+ val = JS_GetProperty(ctx, obj, atom);
+ if (JS_IsException(val))
+ goto exception;
+ break;
+ case JS_ITERATOR_KIND_KEY_AND_VALUE:
+ val = JS_NewArray(ctx);
+ if (JS_IsException(val))
+ goto exception;
+ key = JS_AtomToValue(ctx, atom);
+ if (JS_IsException(key))
+ goto exception1;
+ if (JS_CreateDataPropertyUint32(ctx, val, 0, key, JS_PROP_THROW) < 0)
+ goto exception1;
+ value = JS_GetProperty(ctx, obj, atom);
+ if (JS_IsException(value))
+ goto exception1;
+ if (JS_CreateDataPropertyUint32(ctx, val, 1, value, JS_PROP_THROW) < 0)
+ goto exception1;
+ break;
+ }
+ if (JS_CreateDataPropertyUint32(ctx, r, j++, val, 0) < 0)
+ goto exception;
+ }
+ goto done;
+
+exception1:
+ JS_FreeValue(ctx, val);
+exception:
+ JS_FreeValue(ctx, r);
+ r = JS_EXCEPTION;
+done:
+ js_free_prop_enum(ctx, atoms, len);
+ JS_FreeValue(ctx, obj);
+ return r;
+}
+
+static JSValue js_object_getOwnPropertyNames(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ return JS_GetOwnPropertyNames2(ctx, argv[0],
+ JS_GPN_STRING_MASK, JS_ITERATOR_KIND_KEY);
+}
+
+static JSValue js_object_getOwnPropertySymbols(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ return JS_GetOwnPropertyNames2(ctx, argv[0],
+ JS_GPN_SYMBOL_MASK, JS_ITERATOR_KIND_KEY);
+}
+
+static JSValue js_object_keys(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int kind)
+{
+ return JS_GetOwnPropertyNames2(ctx, argv[0],
+ JS_GPN_ENUM_ONLY | JS_GPN_STRING_MASK, kind);
+}
+
+static JSValue js_object_isExtensible(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int reflect)
+{
+ JSValueConst obj;
+ int ret;
+
+ obj = argv[0];
+ if (JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT) {
+ if (reflect)
+ return JS_ThrowTypeErrorNotAnObject(ctx);
+ else
+ return JS_FALSE;
+ }
+ ret = JS_IsExtensible(ctx, obj);
+ if (ret < 0)
+ return JS_EXCEPTION;
+ else
+ return JS_NewBool(ctx, ret);
+}
+
+static JSValue js_object_preventExtensions(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int reflect)
+{
+ JSValueConst obj;
+ int ret;
+
+ obj = argv[0];
+ if (JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT) {
+ if (reflect)
+ return JS_ThrowTypeErrorNotAnObject(ctx);
+ else
+ return JS_DupValue(ctx, obj);
+ }
+ ret = JS_PreventExtensions(ctx, obj);
+ if (ret < 0)
+ return JS_EXCEPTION;
+ if (reflect) {
+ return JS_NewBool(ctx, ret);
+ } else {
+ if (!ret)
+ return JS_ThrowTypeError(ctx, "proxy preventExtensions handler returned false");
+ return JS_DupValue(ctx, obj);
+ }
+}
+
+static JSValue js_object_hasOwnProperty(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValue obj;
+ JSAtom atom;
+ JSObject *p;
+ BOOL ret;
+
+ atom = JS_ValueToAtom(ctx, argv[0]); /* must be done first */
+ if (unlikely(atom == JS_ATOM_NULL))
+ return JS_EXCEPTION;
+ obj = JS_ToObject(ctx, this_val);
+ if (JS_IsException(obj)) {
+ JS_FreeAtom(ctx, atom);
+ return obj;
+ }
+ p = JS_VALUE_GET_OBJ(obj);
+ ret = JS_GetOwnPropertyInternal(ctx, NULL, p, atom);
+ JS_FreeAtom(ctx, atom);
+ JS_FreeValue(ctx, obj);
+ if (ret < 0)
+ return JS_EXCEPTION;
+ else
+ return JS_NewBool(ctx, ret);
+}
+
+static JSValue js_object_hasOwn(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValue obj;
+ JSAtom atom;
+ JSObject *p;
+ BOOL ret;
+
+ obj = JS_ToObject(ctx, argv[0]);
+ if (JS_IsException(obj))
+ return obj;
+ atom = JS_ValueToAtom(ctx, argv[1]);
+ if (unlikely(atom == JS_ATOM_NULL)) {
+ JS_FreeValue(ctx, obj);
+ return JS_EXCEPTION;
+ }
+ p = JS_VALUE_GET_OBJ(obj);
+ ret = JS_GetOwnPropertyInternal(ctx, NULL, p, atom);
+ JS_FreeAtom(ctx, atom);
+ JS_FreeValue(ctx, obj);
+ if (ret < 0)
+ return JS_EXCEPTION;
+ else
+ return JS_NewBool(ctx, ret);
+}
+
+static JSValue js_object_valueOf(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ return JS_ToObject(ctx, this_val);
+}
+
+static JSValue js_object_toString(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValue obj, tag;
+ int is_array;
+ JSAtom atom;
+ JSObject *p;
+
+ if (JS_IsNull(this_val)) {
+ tag = JS_NewString(ctx, "Null");
+ } else if (JS_IsUndefined(this_val)) {
+ tag = JS_NewString(ctx, "Undefined");
+ } else {
+ obj = JS_ToObject(ctx, this_val);
+ if (JS_IsException(obj))
+ return obj;
+ is_array = JS_IsArray(ctx, obj);
+ if (is_array < 0) {
+ JS_FreeValue(ctx, obj);
+ return JS_EXCEPTION;
+ }
+ if (is_array) {
+ atom = JS_ATOM_Array;
+ } else if (JS_IsFunction(ctx, obj)) {
+ atom = JS_ATOM_Function;
+ } else {
+ p = JS_VALUE_GET_OBJ(obj);
+ switch(p->class_id) {
+ case JS_CLASS_STRING:
+ case JS_CLASS_ARGUMENTS:
+ case JS_CLASS_MAPPED_ARGUMENTS:
+ case JS_CLASS_ERROR:
+ case JS_CLASS_BOOLEAN:
+ case JS_CLASS_NUMBER:
+ case JS_CLASS_DATE:
+ case JS_CLASS_REGEXP:
+ atom = ctx->rt->class_array[p->class_id].class_name;
+ break;
+ default:
+ atom = JS_ATOM_Object;
+ break;
+ }
+ }
+ tag = JS_GetProperty(ctx, obj, JS_ATOM_Symbol_toStringTag);
+ JS_FreeValue(ctx, obj);
+ if (JS_IsException(tag))
+ return JS_EXCEPTION;
+ if (!JS_IsString(tag)) {
+ JS_FreeValue(ctx, tag);
+ tag = JS_AtomToString(ctx, atom);
+ }
+ }
+ return JS_ConcatString3(ctx, "[object ", tag, "]");
+}
+
+static JSValue js_object_toLocaleString(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ return JS_Invoke(ctx, this_val, JS_ATOM_toString, 0, NULL);
+}
+
+static JSValue js_object_assign(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ // Object.assign(obj, source1)
+ JSValue obj, s;
+ int i;
+
+ s = JS_UNDEFINED;
+ obj = JS_ToObject(ctx, argv[0]);
+ if (JS_IsException(obj))
+ goto exception;
+ for (i = 1; i < argc; i++) {
+ if (!JS_IsNull(argv[i]) && !JS_IsUndefined(argv[i])) {
+ s = JS_ToObject(ctx, argv[i]);
+ if (JS_IsException(s))
+ goto exception;
+ if (JS_CopyDataProperties(ctx, obj, s, JS_UNDEFINED, TRUE))
+ goto exception;
+ JS_FreeValue(ctx, s);
+ }
+ }
+ return obj;
+exception:
+ JS_FreeValue(ctx, obj);
+ JS_FreeValue(ctx, s);
+ return JS_EXCEPTION;
+}
+
+static JSValue js_object_seal(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int freeze_flag)
+{
+ JSValueConst obj = argv[0];
+ JSObject *p;
+ JSPropertyEnum *props;
+ uint32_t len, i;
+ int flags, desc_flags, res;
+
+ if (!JS_IsObject(obj))
+ return JS_DupValue(ctx, obj);
+
+ res = JS_PreventExtensions(ctx, obj);
+ if (res < 0)
+ return JS_EXCEPTION;
+ if (!res) {
+ return JS_ThrowTypeError(ctx, "proxy preventExtensions handler returned false");
+ }
+
+ p = JS_VALUE_GET_OBJ(obj);
+ flags = JS_GPN_STRING_MASK | JS_GPN_SYMBOL_MASK;
+ if (JS_GetOwnPropertyNamesInternal(ctx, &props, &len, p, flags))
+ return JS_EXCEPTION;
+
+ for(i = 0; i < len; i++) {
+ JSPropertyDescriptor desc;
+ JSAtom prop = props[i].atom;
+
+ desc_flags = JS_PROP_THROW | JS_PROP_HAS_CONFIGURABLE;
+ if (freeze_flag) {
+ res = JS_GetOwnPropertyInternal(ctx, &desc, p, prop);
+ if (res < 0)
+ goto exception;
+ if (res) {
+ if (desc.flags & JS_PROP_WRITABLE)
+ desc_flags |= JS_PROP_HAS_WRITABLE;
+ js_free_desc(ctx, &desc);
+ }
+ }
+ if (JS_DefineProperty(ctx, obj, prop, JS_UNDEFINED,
+ JS_UNDEFINED, JS_UNDEFINED, desc_flags) < 0)
+ goto exception;
+ }
+ js_free_prop_enum(ctx, props, len);
+ return JS_DupValue(ctx, obj);
+
+ exception:
+ js_free_prop_enum(ctx, props, len);
+ return JS_EXCEPTION;
+}
+
+static JSValue js_object_isSealed(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int is_frozen)
+{
+ JSValueConst obj = argv[0];
+ JSObject *p;
+ JSPropertyEnum *props;
+ uint32_t len, i;
+ int flags, res;
+
+ if (!JS_IsObject(obj))
+ return JS_TRUE;
+
+ p = JS_VALUE_GET_OBJ(obj);
+ flags = JS_GPN_STRING_MASK | JS_GPN_SYMBOL_MASK;
+ if (JS_GetOwnPropertyNamesInternal(ctx, &props, &len, p, flags))
+ return JS_EXCEPTION;
+
+ for(i = 0; i < len; i++) {
+ JSPropertyDescriptor desc;
+ JSAtom prop = props[i].atom;
+
+ res = JS_GetOwnPropertyInternal(ctx, &desc, p, prop);
+ if (res < 0)
+ goto exception;
+ if (res) {
+ js_free_desc(ctx, &desc);
+ if ((desc.flags & JS_PROP_CONFIGURABLE)
+ || (is_frozen && (desc.flags & JS_PROP_WRITABLE))) {
+ res = FALSE;
+ goto done;
+ }
+ }
+ }
+ res = JS_IsExtensible(ctx, obj);
+ if (res < 0)
+ return JS_EXCEPTION;
+ res ^= 1;
+done:
+ js_free_prop_enum(ctx, props, len);
+ return JS_NewBool(ctx, res);
+
+exception:
+ js_free_prop_enum(ctx, props, len);
+ return JS_EXCEPTION;
+}
+
+static JSValue js_object_fromEntries(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValue obj, iter, next_method = JS_UNDEFINED;
+ JSValueConst iterable;
+ BOOL done;
+
+ /* RequireObjectCoercible() not necessary because it is tested in
+ JS_GetIterator() by JS_GetProperty() */
+ iterable = argv[0];
+
+ obj = JS_NewObject(ctx);
+ if (JS_IsException(obj))
+ return obj;
+
+ iter = JS_GetIterator(ctx, iterable, FALSE);
+ if (JS_IsException(iter))
+ goto fail;
+ next_method = JS_GetProperty(ctx, iter, JS_ATOM_next);
+ if (JS_IsException(next_method))
+ goto fail;
+
+ for(;;) {
+ JSValue key, value, item;
+ item = JS_IteratorNext(ctx, iter, next_method, 0, NULL, &done);
+ if (JS_IsException(item))
+ goto fail;
+ if (done) {
+ JS_FreeValue(ctx, item);
+ break;
+ }
+
+ key = JS_UNDEFINED;
+ value = JS_UNDEFINED;
+ if (!JS_IsObject(item)) {
+ JS_ThrowTypeErrorNotAnObject(ctx);
+ goto fail1;
+ }
+ key = JS_GetPropertyUint32(ctx, item, 0);
+ if (JS_IsException(key))
+ goto fail1;
+ value = JS_GetPropertyUint32(ctx, item, 1);
+ if (JS_IsException(value)) {
+ JS_FreeValue(ctx, key);
+ goto fail1;
+ }
+ if (JS_DefinePropertyValueValue(ctx, obj, key, value,
+ JS_PROP_C_W_E | JS_PROP_THROW) < 0) {
+ fail1:
+ JS_FreeValue(ctx, item);
+ goto fail;
+ }
+ JS_FreeValue(ctx, item);
+ }
+ JS_FreeValue(ctx, next_method);
+ JS_FreeValue(ctx, iter);
+ return obj;
+ fail:
+ if (JS_IsObject(iter)) {
+ /* close the iterator object, preserving pending exception */
+ JS_IteratorClose(ctx, iter, TRUE);
+ }
+ JS_FreeValue(ctx, next_method);
+ JS_FreeValue(ctx, iter);
+ JS_FreeValue(ctx, obj);
+ return JS_EXCEPTION;
+}
+
+#if 0
+/* Note: corresponds to ECMA spec: CreateDataPropertyOrThrow() */
+static JSValue js_object___setOwnProperty(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ int ret;
+ ret = JS_DefinePropertyValueValue(ctx, argv[0], JS_DupValue(ctx, argv[1]),
+ JS_DupValue(ctx, argv[2]),
+ JS_PROP_C_W_E | JS_PROP_THROW);
+ if (ret < 0)
+ return JS_EXCEPTION;
+ else
+ return JS_NewBool(ctx, ret);
+}
+
+static JSValue js_object___toObject(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ return JS_ToObject(ctx, argv[0]);
+}
+
+static JSValue js_object___toPrimitive(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ int hint = HINT_NONE;
+
+ if (JS_VALUE_GET_TAG(argv[1]) == JS_TAG_INT)
+ hint = JS_VALUE_GET_INT(argv[1]);
+
+ return JS_ToPrimitive(ctx, argv[0], hint);
+}
+#endif
+
+/* return an empty string if not an object */
+static JSValue js_object___getClass(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSAtom atom;
+ JSObject *p;
+ uint32_t tag;
+ int class_id;
+
+ tag = JS_VALUE_GET_NORM_TAG(argv[0]);
+ if (tag == JS_TAG_OBJECT) {
+ p = JS_VALUE_GET_OBJ(argv[0]);
+ class_id = p->class_id;
+ if (class_id == JS_CLASS_PROXY && JS_IsFunction(ctx, argv[0]))
+ class_id = JS_CLASS_BYTECODE_FUNCTION;
+ atom = ctx->rt->class_array[class_id].class_name;
+ } else {
+ atom = JS_ATOM_empty_string;
+ }
+ return JS_AtomToString(ctx, atom);
+}
+
+static JSValue js_object_is(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ return JS_NewBool(ctx, js_same_value(ctx, argv[0], argv[1]));
+}
+
+#if 0
+static JSValue js_object___getObjectData(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ return JS_GetObjectData(ctx, argv[0]);
+}
+
+static JSValue js_object___setObjectData(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ if (JS_SetObjectData(ctx, argv[0], JS_DupValue(ctx, argv[1])))
+ return JS_EXCEPTION;
+ return JS_DupValue(ctx, argv[1]);
+}
+
+static JSValue js_object___toPropertyKey(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ return JS_ToPropertyKey(ctx, argv[0]);
+}
+
+static JSValue js_object___isObject(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ return JS_NewBool(ctx, JS_IsObject(argv[0]));
+}
+
+static JSValue js_object___isSameValueZero(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ return JS_NewBool(ctx, js_same_value_zero(ctx, argv[0], argv[1]));
+}
+
+static JSValue js_object___isConstructor(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ return JS_NewBool(ctx, JS_IsConstructor(ctx, argv[0]));
+}
+#endif
+
+static JSValue JS_SpeciesConstructor(JSContext *ctx, JSValueConst obj,
+ JSValueConst defaultConstructor)
+{
+ JSValue ctor, species;
+
+ if (!JS_IsObject(obj))
+ return JS_ThrowTypeErrorNotAnObject(ctx);
+ ctor = JS_GetProperty(ctx, obj, JS_ATOM_constructor);
+ if (JS_IsException(ctor))
+ return ctor;
+ if (JS_IsUndefined(ctor))
+ return JS_DupValue(ctx, defaultConstructor);
+ if (!JS_IsObject(ctor)) {
+ JS_FreeValue(ctx, ctor);
+ return JS_ThrowTypeErrorNotAnObject(ctx);
+ }
+ species = JS_GetProperty(ctx, ctor, JS_ATOM_Symbol_species);
+ JS_FreeValue(ctx, ctor);
+ if (JS_IsException(species))
+ return species;
+ if (JS_IsUndefined(species) || JS_IsNull(species))
+ return JS_DupValue(ctx, defaultConstructor);
+ if (!JS_IsConstructor(ctx, species)) {
+ JS_FreeValue(ctx, species);
+ return JS_ThrowTypeError(ctx, "not a constructor");
+ }
+ return species;
+}
+
+#if 0
+static JSValue js_object___speciesConstructor(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ return JS_SpeciesConstructor(ctx, argv[0], argv[1]);
+}
+#endif
+
+static JSValue js_object_get___proto__(JSContext *ctx, JSValueConst this_val)
+{
+ JSValue val, ret;
+
+ val = JS_ToObject(ctx, this_val);
+ if (JS_IsException(val))
+ return val;
+ ret = JS_GetPrototype(ctx, val);
+ JS_FreeValue(ctx, val);
+ return ret;
+}
+
+static JSValue js_object_set___proto__(JSContext *ctx, JSValueConst this_val,
+ JSValueConst proto)
+{
+ if (JS_IsUndefined(this_val) || JS_IsNull(this_val))
+ return JS_ThrowTypeErrorNotAnObject(ctx);
+ if (!JS_IsObject(proto) && !JS_IsNull(proto))
+ return JS_UNDEFINED;
+ if (JS_SetPrototypeInternal(ctx, this_val, proto, TRUE) < 0)
+ return JS_EXCEPTION;
+ else
+ return JS_UNDEFINED;
+}
+
+static JSValue js_object_isPrototypeOf(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValue obj, v1;
+ JSValueConst v;
+ int res;
+
+ v = argv[0];
+ if (!JS_IsObject(v))
+ return JS_FALSE;
+ obj = JS_ToObject(ctx, this_val);
+ if (JS_IsException(obj))
+ return JS_EXCEPTION;
+ v1 = JS_DupValue(ctx, v);
+ for(;;) {
+ v1 = JS_GetPrototypeFree(ctx, v1);
+ if (JS_IsException(v1))
+ goto exception;
+ if (JS_IsNull(v1)) {
+ res = FALSE;
+ break;
+ }
+ if (JS_VALUE_GET_OBJ(obj) == JS_VALUE_GET_OBJ(v1)) {
+ res = TRUE;
+ break;
+ }
+ /* avoid infinite loop (possible with proxies) */
+ if (js_poll_interrupts(ctx))
+ goto exception;
+ }
+ JS_FreeValue(ctx, v1);
+ JS_FreeValue(ctx, obj);
+ return JS_NewBool(ctx, res);
+
+exception:
+ JS_FreeValue(ctx, v1);
+ JS_FreeValue(ctx, obj);
+ return JS_EXCEPTION;
+}
+
+static JSValue js_object_propertyIsEnumerable(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValue obj, res = JS_EXCEPTION;
+ JSAtom prop = JS_ATOM_NULL;
+ JSPropertyDescriptor desc;
+ int has_prop;
+
+ obj = JS_ToObject(ctx, this_val);
+ if (JS_IsException(obj))
+ goto exception;
+ prop = JS_ValueToAtom(ctx, argv[0]);
+ if (unlikely(prop == JS_ATOM_NULL))
+ goto exception;
+
+ has_prop = JS_GetOwnPropertyInternal(ctx, &desc, JS_VALUE_GET_OBJ(obj), prop);
+ if (has_prop < 0)
+ goto exception;
+ if (has_prop) {
+ res = JS_NewBool(ctx, desc.flags & JS_PROP_ENUMERABLE);
+ js_free_desc(ctx, &desc);
+ } else {
+ res = JS_FALSE;
+ }
+
+exception:
+ JS_FreeAtom(ctx, prop);
+ JS_FreeValue(ctx, obj);
+ return res;
+}
+
+static JSValue js_object___lookupGetter__(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int setter)
+{
+ JSValue obj, res = JS_EXCEPTION;
+ JSAtom prop = JS_ATOM_NULL;
+ JSPropertyDescriptor desc;
+ int has_prop;
+
+ obj = JS_ToObject(ctx, this_val);
+ if (JS_IsException(obj))
+ goto exception;
+ prop = JS_ValueToAtom(ctx, argv[0]);
+ if (unlikely(prop == JS_ATOM_NULL))
+ goto exception;
+
+ for (;;) {
+ has_prop = JS_GetOwnPropertyInternal(ctx, &desc, JS_VALUE_GET_OBJ(obj), prop);
+ if (has_prop < 0)
+ goto exception;
+ if (has_prop) {
+ if (desc.flags & JS_PROP_GETSET)
+ res = JS_DupValue(ctx, setter ? desc.setter : desc.getter);
+ else
+ res = JS_UNDEFINED;
+ js_free_desc(ctx, &desc);
+ break;
+ }
+ obj = JS_GetPrototypeFree(ctx, obj);
+ if (JS_IsException(obj))
+ goto exception;
+ if (JS_IsNull(obj)) {
+ res = JS_UNDEFINED;
+ break;
+ }
+ /* avoid infinite loop (possible with proxies) */
+ if (js_poll_interrupts(ctx))
+ goto exception;
+ }
+
+exception:
+ JS_FreeAtom(ctx, prop);
+ JS_FreeValue(ctx, obj);
+ return res;
+}
+
+static const JSCFunctionListEntry js_object_funcs[] = {
+ JS_CFUNC_DEF("create", 2, js_object_create ),
+ JS_CFUNC_MAGIC_DEF("getPrototypeOf", 1, js_object_getPrototypeOf, 0 ),
+ JS_CFUNC_DEF("setPrototypeOf", 2, js_object_setPrototypeOf ),
+ JS_CFUNC_MAGIC_DEF("defineProperty", 3, js_object_defineProperty, 0 ),
+ JS_CFUNC_DEF("defineProperties", 2, js_object_defineProperties ),
+ JS_CFUNC_DEF("getOwnPropertyNames", 1, js_object_getOwnPropertyNames ),
+ JS_CFUNC_DEF("getOwnPropertySymbols", 1, js_object_getOwnPropertySymbols ),
+ JS_CFUNC_MAGIC_DEF("groupBy", 2, js_object_groupBy, 0 ),
+ JS_CFUNC_MAGIC_DEF("keys", 1, js_object_keys, JS_ITERATOR_KIND_KEY ),
+ JS_CFUNC_MAGIC_DEF("values", 1, js_object_keys, JS_ITERATOR_KIND_VALUE ),
+ JS_CFUNC_MAGIC_DEF("entries", 1, js_object_keys, JS_ITERATOR_KIND_KEY_AND_VALUE ),
+ JS_CFUNC_MAGIC_DEF("isExtensible", 1, js_object_isExtensible, 0 ),
+ JS_CFUNC_MAGIC_DEF("preventExtensions", 1, js_object_preventExtensions, 0 ),
+ JS_CFUNC_MAGIC_DEF("getOwnPropertyDescriptor", 2, js_object_getOwnPropertyDescriptor, 0 ),
+ JS_CFUNC_DEF("getOwnPropertyDescriptors", 1, js_object_getOwnPropertyDescriptors ),
+ JS_CFUNC_DEF("is", 2, js_object_is ),
+ JS_CFUNC_DEF("assign", 2, js_object_assign ),
+ JS_CFUNC_MAGIC_DEF("seal", 1, js_object_seal, 0 ),
+ JS_CFUNC_MAGIC_DEF("freeze", 1, js_object_seal, 1 ),
+ JS_CFUNC_MAGIC_DEF("isSealed", 1, js_object_isSealed, 0 ),
+ JS_CFUNC_MAGIC_DEF("isFrozen", 1, js_object_isSealed, 1 ),
+ JS_CFUNC_DEF("__getClass", 1, js_object___getClass ),
+ //JS_CFUNC_DEF("__isObject", 1, js_object___isObject ),
+ //JS_CFUNC_DEF("__isConstructor", 1, js_object___isConstructor ),
+ //JS_CFUNC_DEF("__toObject", 1, js_object___toObject ),
+ //JS_CFUNC_DEF("__setOwnProperty", 3, js_object___setOwnProperty ),
+ //JS_CFUNC_DEF("__toPrimitive", 2, js_object___toPrimitive ),
+ //JS_CFUNC_DEF("__toPropertyKey", 1, js_object___toPropertyKey ),
+ //JS_CFUNC_DEF("__speciesConstructor", 2, js_object___speciesConstructor ),
+ //JS_CFUNC_DEF("__isSameValueZero", 2, js_object___isSameValueZero ),
+ //JS_CFUNC_DEF("__getObjectData", 1, js_object___getObjectData ),
+ //JS_CFUNC_DEF("__setObjectData", 2, js_object___setObjectData ),
+ JS_CFUNC_DEF("fromEntries", 1, js_object_fromEntries ),
+ JS_CFUNC_DEF("hasOwn", 2, js_object_hasOwn ),
+};
+
+static const JSCFunctionListEntry js_object_proto_funcs[] = {
+ JS_CFUNC_DEF("toString", 0, js_object_toString ),
+ JS_CFUNC_DEF("toLocaleString", 0, js_object_toLocaleString ),
+ JS_CFUNC_DEF("valueOf", 0, js_object_valueOf ),
+ JS_CFUNC_DEF("hasOwnProperty", 1, js_object_hasOwnProperty ),
+ JS_CFUNC_DEF("isPrototypeOf", 1, js_object_isPrototypeOf ),
+ JS_CFUNC_DEF("propertyIsEnumerable", 1, js_object_propertyIsEnumerable ),
+ JS_CGETSET_DEF("__proto__", js_object_get___proto__, js_object_set___proto__ ),
+ JS_CFUNC_MAGIC_DEF("__defineGetter__", 2, js_object___defineGetter__, 0 ),
+ JS_CFUNC_MAGIC_DEF("__defineSetter__", 2, js_object___defineGetter__, 1 ),
+ JS_CFUNC_MAGIC_DEF("__lookupGetter__", 1, js_object___lookupGetter__, 0 ),
+ JS_CFUNC_MAGIC_DEF("__lookupSetter__", 1, js_object___lookupGetter__, 1 ),
+};
+
+/* Function class */
+
+static JSValue js_function_proto(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ return JS_UNDEFINED;
+}
+
+/* XXX: add a specific eval mode so that Function("}), ({") is rejected */
+static JSValue js_function_constructor(JSContext *ctx, JSValueConst new_target,
+ int argc, JSValueConst *argv, int magic)
+{
+ JSFunctionKindEnum func_kind = magic;
+ int i, n, ret;
+ JSValue s, proto, obj = JS_UNDEFINED;
+ StringBuffer b_s, *b = &b_s;
+
+ string_buffer_init(ctx, b, 0);
+ string_buffer_putc8(b, '(');
+
+ if (func_kind == JS_FUNC_ASYNC || func_kind == JS_FUNC_ASYNC_GENERATOR) {
+ string_buffer_puts8(b, "async ");
+ }
+ string_buffer_puts8(b, "function");
+
+ if (func_kind == JS_FUNC_GENERATOR || func_kind == JS_FUNC_ASYNC_GENERATOR) {
+ string_buffer_putc8(b, '*');
+ }
+ string_buffer_puts8(b, " anonymous(");
+
+ n = argc - 1;
+ for(i = 0; i < n; i++) {
+ if (i != 0) {
+ string_buffer_putc8(b, ',');
+ }
+ if (string_buffer_concat_value(b, argv[i]))
+ goto fail;
+ }
+ string_buffer_puts8(b, "\n) {\n");
+ if (n >= 0) {
+ if (string_buffer_concat_value(b, argv[n]))
+ goto fail;
+ }
+ string_buffer_puts8(b, "\n})");
+ s = string_buffer_end(b);
+ if (JS_IsException(s))
+ goto fail1;
+
+ obj = JS_EvalObject(ctx, ctx->global_obj, s, JS_EVAL_TYPE_INDIRECT, -1);
+ JS_FreeValue(ctx, s);
+ if (JS_IsException(obj))
+ goto fail1;
+ if (!JS_IsUndefined(new_target)) {
+ /* set the prototype */
+ proto = JS_GetProperty(ctx, new_target, JS_ATOM_prototype);
+ if (JS_IsException(proto))
+ goto fail1;
+ if (!JS_IsObject(proto)) {
+ JSContext *realm;
+ JS_FreeValue(ctx, proto);
+ realm = JS_GetFunctionRealm(ctx, new_target);
+ if (!realm)
+ goto fail1;
+ proto = JS_DupValue(ctx, realm->class_proto[func_kind_to_class_id[func_kind]]);
+ }
+ ret = JS_SetPrototypeInternal(ctx, obj, proto, TRUE);
+ JS_FreeValue(ctx, proto);
+ if (ret < 0)
+ goto fail1;
+ }
+ return obj;
+
+ fail:
+ string_buffer_free(b);
+ fail1:
+ JS_FreeValue(ctx, obj);
+ return JS_EXCEPTION;
+}
+
+static __exception int js_get_length32(JSContext *ctx, uint32_t *pres,
+ JSValueConst obj)
+{
+ JSValue len_val;
+ len_val = JS_GetProperty(ctx, obj, JS_ATOM_length);
+ if (JS_IsException(len_val)) {
+ *pres = 0;
+ return -1;
+ }
+ return JS_ToUint32Free(ctx, pres, len_val);
+}
+
+static __exception int js_get_length64(JSContext *ctx, int64_t *pres,
+ JSValueConst obj)
+{
+ JSValue len_val;
+ len_val = JS_GetProperty(ctx, obj, JS_ATOM_length);
+ if (JS_IsException(len_val)) {
+ *pres = 0;
+ return -1;
+ }
+ return JS_ToLengthFree(ctx, pres, len_val);
+}
+
+static void free_arg_list(JSContext *ctx, JSValue *tab, uint32_t len)
+{
+ uint32_t i;
+ for(i = 0; i < len; i++) {
+ JS_FreeValue(ctx, tab[i]);
+ }
+ js_free(ctx, tab);
+}
+
+/* XXX: should use ValueArray */
+static JSValue *build_arg_list(JSContext *ctx, uint32_t *plen,
+ JSValueConst array_arg)
+{
+ uint32_t len, i;
+ JSValue *tab, ret;
+ JSObject *p;
+
+ if (JS_VALUE_GET_TAG(array_arg) != JS_TAG_OBJECT) {
+ JS_ThrowTypeError(ctx, "not a object");
+ return NULL;
+ }
+ if (js_get_length32(ctx, &len, array_arg))
+ return NULL;
+ if (len > JS_MAX_LOCAL_VARS) {
+ // XXX: check for stack overflow?
+ JS_ThrowRangeError(ctx, "too many arguments in function call (only %d allowed)",
+ JS_MAX_LOCAL_VARS);
+ return NULL;
+ }
+ /* avoid allocating 0 bytes */
+ tab = js_mallocz(ctx, sizeof(tab[0]) * max_uint32(1, len));
+ if (!tab)
+ return NULL;
+ p = JS_VALUE_GET_OBJ(array_arg);
+ if ((p->class_id == JS_CLASS_ARRAY || p->class_id == JS_CLASS_ARGUMENTS) &&
+ p->fast_array &&
+ len == p->u.array.count) {
+ for(i = 0; i < len; i++) {
+ tab[i] = JS_DupValue(ctx, p->u.array.u.values[i]);
+ }
+ } else {
+ for(i = 0; i < len; i++) {
+ ret = JS_GetPropertyUint32(ctx, array_arg, i);
+ if (JS_IsException(ret)) {
+ free_arg_list(ctx, tab, i);
+ return NULL;
+ }
+ tab[i] = ret;
+ }
+ }
+ *plen = len;
+ return tab;
+}
+
+/* magic value: 0 = normal apply, 1 = apply for constructor, 2 =
+ Reflect.apply */
+static JSValue js_function_apply(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int magic)
+{
+ JSValueConst this_arg, array_arg;
+ uint32_t len;
+ JSValue *tab, ret;
+
+ if (check_function(ctx, this_val))
+ return JS_EXCEPTION;
+ this_arg = argv[0];
+ array_arg = argv[1];
+ if ((JS_VALUE_GET_TAG(array_arg) == JS_TAG_UNDEFINED ||
+ JS_VALUE_GET_TAG(array_arg) == JS_TAG_NULL) && magic != 2) {
+ return JS_Call(ctx, this_val, this_arg, 0, NULL);
+ }
+ tab = build_arg_list(ctx, &len, array_arg);
+ if (!tab)
+ return JS_EXCEPTION;
+ if (magic & 1) {
+ ret = JS_CallConstructor2(ctx, this_val, this_arg, len, (JSValueConst *)tab);
+ } else {
+ ret = JS_Call(ctx, this_val, this_arg, len, (JSValueConst *)tab);
+ }
+ free_arg_list(ctx, tab, len);
+ return ret;
+}
+
+static JSValue js_function_call(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ if (argc <= 0) {
+ return JS_Call(ctx, this_val, JS_UNDEFINED, 0, NULL);
+ } else {
+ return JS_Call(ctx, this_val, argv[0], argc - 1, argv + 1);
+ }
+}
+
+static JSValue js_function_bind(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSBoundFunction *bf;
+ JSValue func_obj, name1, len_val;
+ JSObject *p;
+ int arg_count, i, ret;
+
+ if (check_function(ctx, this_val))
+ return JS_EXCEPTION;
+
+ func_obj = JS_NewObjectProtoClass(ctx, ctx->function_proto,
+ JS_CLASS_BOUND_FUNCTION);
+ if (JS_IsException(func_obj))
+ return JS_EXCEPTION;
+ p = JS_VALUE_GET_OBJ(func_obj);
+ p->is_constructor = JS_IsConstructor(ctx, this_val);
+ arg_count = max_int(0, argc - 1);
+ bf = js_malloc(ctx, sizeof(*bf) + arg_count * sizeof(JSValue));
+ if (!bf)
+ goto exception;
+ bf->func_obj = JS_DupValue(ctx, this_val);
+ bf->this_val = JS_DupValue(ctx, argv[0]);
+ bf->argc = arg_count;
+ for(i = 0; i < arg_count; i++) {
+ bf->argv[i] = JS_DupValue(ctx, argv[i + 1]);
+ }
+ p->u.bound_function = bf;
+
+ /* XXX: the spec could be simpler by only using GetOwnProperty */
+ ret = JS_GetOwnProperty(ctx, NULL, this_val, JS_ATOM_length);
+ if (ret < 0)
+ goto exception;
+ if (!ret) {
+ len_val = JS_NewInt32(ctx, 0);
+ } else {
+ len_val = JS_GetProperty(ctx, this_val, JS_ATOM_length);
+ if (JS_IsException(len_val))
+ goto exception;
+ if (JS_VALUE_GET_TAG(len_val) == JS_TAG_INT) {
+ /* most common case */
+ int len1 = JS_VALUE_GET_INT(len_val);
+ if (len1 <= arg_count)
+ len1 = 0;
+ else
+ len1 -= arg_count;
+ len_val = JS_NewInt32(ctx, len1);
+ } else if (JS_VALUE_GET_NORM_TAG(len_val) == JS_TAG_FLOAT64) {
+ double d = JS_VALUE_GET_FLOAT64(len_val);
+ if (isnan(d)) {
+ d = 0.0;
+ } else {
+ d = trunc(d);
+ if (d <= (double)arg_count)
+ d = 0.0;
+ else
+ d -= (double)arg_count; /* also converts -0 to +0 */
+ }
+ len_val = JS_NewFloat64(ctx, d);
+ } else {
+ JS_FreeValue(ctx, len_val);
+ len_val = JS_NewInt32(ctx, 0);
+ }
+ }
+ JS_DefinePropertyValue(ctx, func_obj, JS_ATOM_length,
+ len_val, JS_PROP_CONFIGURABLE);
+
+ name1 = JS_GetProperty(ctx, this_val, JS_ATOM_name);
+ if (JS_IsException(name1))
+ goto exception;
+ if (!JS_IsString(name1)) {
+ JS_FreeValue(ctx, name1);
+ name1 = JS_AtomToString(ctx, JS_ATOM_empty_string);
+ }
+ name1 = JS_ConcatString3(ctx, "bound ", name1, "");
+ if (JS_IsException(name1))
+ goto exception;
+ JS_DefinePropertyValue(ctx, func_obj, JS_ATOM_name, name1,
+ JS_PROP_CONFIGURABLE);
+ return func_obj;
+ exception:
+ JS_FreeValue(ctx, func_obj);
+ return JS_EXCEPTION;
+}
+
+static JSValue js_function_toString(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSObject *p;
+ JSFunctionKindEnum func_kind = JS_FUNC_NORMAL;
+
+ if (check_function(ctx, this_val))
+ return JS_EXCEPTION;
+
+ p = JS_VALUE_GET_OBJ(this_val);
+ if (js_class_has_bytecode(p->class_id)) {
+ JSFunctionBytecode *b = p->u.func.function_bytecode;
+ if (b->has_debug && b->debug.source) {
+ return JS_NewStringLen(ctx, b->debug.source, b->debug.source_len);
+ }
+ func_kind = b->func_kind;
+ }
+ {
+ JSValue name;
+ const char *pref, *suff;
+
+ switch(func_kind) {
+ default:
+ case JS_FUNC_NORMAL:
+ pref = "function ";
+ break;
+ case JS_FUNC_GENERATOR:
+ pref = "function *";
+ break;
+ case JS_FUNC_ASYNC:
+ pref = "async function ";
+ break;
+ case JS_FUNC_ASYNC_GENERATOR:
+ pref = "async function *";
+ break;
+ }
+ suff = "() {\n [native code]\n}";
+ name = JS_GetProperty(ctx, this_val, JS_ATOM_name);
+ if (JS_IsUndefined(name))
+ name = JS_AtomToString(ctx, JS_ATOM_empty_string);
+ return JS_ConcatString3(ctx, pref, name, suff);
+ }
+}
+
+static JSValue js_function_hasInstance(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ int ret;
+ ret = JS_OrdinaryIsInstanceOf(ctx, argv[0], this_val);
+ if (ret < 0)
+ return JS_EXCEPTION;
+ else
+ return JS_NewBool(ctx, ret);
+}
+
+static const JSCFunctionListEntry js_function_proto_funcs[] = {
+ JS_CFUNC_DEF("call", 1, js_function_call ),
+ JS_CFUNC_MAGIC_DEF("apply", 2, js_function_apply, 0 ),
+ JS_CFUNC_DEF("bind", 1, js_function_bind ),
+ JS_CFUNC_DEF("toString", 0, js_function_toString ),
+ JS_CFUNC_DEF("[Symbol.hasInstance]", 1, js_function_hasInstance ),
+ JS_CGETSET_DEF("fileName", js_function_proto_fileName, NULL ),
+ JS_CGETSET_DEF("lineNumber", js_function_proto_lineNumber, NULL ),
+};
+
+/* Error class */
+
+static JSValue iterator_to_array(JSContext *ctx, JSValueConst items)
+{
+ JSValue iter, next_method = JS_UNDEFINED;
+ JSValue v, r = JS_UNDEFINED;
+ int64_t k;
+ BOOL done;
+
+ iter = JS_GetIterator(ctx, items, FALSE);
+ if (JS_IsException(iter))
+ goto exception;
+ next_method = JS_GetProperty(ctx, iter, JS_ATOM_next);
+ if (JS_IsException(next_method))
+ goto exception;
+ r = JS_NewArray(ctx);
+ if (JS_IsException(r))
+ goto exception;
+ for (k = 0;; k++) {
+ v = JS_IteratorNext(ctx, iter, next_method, 0, NULL, &done);
+ if (JS_IsException(v))
+ goto exception_close;
+ if (done)
+ break;
+ if (JS_DefinePropertyValueInt64(ctx, r, k, v,
+ JS_PROP_C_W_E | JS_PROP_THROW) < 0)
+ goto exception_close;
+ }
+ done:
+ JS_FreeValue(ctx, next_method);
+ JS_FreeValue(ctx, iter);
+ return r;
+ exception_close:
+ JS_IteratorClose(ctx, iter, TRUE);
+ exception:
+ JS_FreeValue(ctx, r);
+ r = JS_EXCEPTION;
+ goto done;
+}
+
+static JSValue js_error_constructor(JSContext *ctx, JSValueConst new_target,
+ int argc, JSValueConst *argv, int magic)
+{
+ JSValue obj, msg, proto;
+ JSValueConst message, options;
+ int arg_index;
+
+ if (JS_IsUndefined(new_target))
+ new_target = JS_GetActiveFunction(ctx);
+ proto = JS_GetProperty(ctx, new_target, JS_ATOM_prototype);
+ if (JS_IsException(proto))
+ return proto;
+ if (!JS_IsObject(proto)) {
+ JSContext *realm;
+ JSValueConst proto1;
+
+ JS_FreeValue(ctx, proto);
+ realm = JS_GetFunctionRealm(ctx, new_target);
+ if (!realm)
+ return JS_EXCEPTION;
+ if (magic < 0) {
+ proto1 = realm->class_proto[JS_CLASS_ERROR];
+ } else {
+ proto1 = realm->native_error_proto[magic];
+ }
+ proto = JS_DupValue(ctx, proto1);
+ }
+ obj = JS_NewObjectProtoClass(ctx, proto, JS_CLASS_ERROR);
+ JS_FreeValue(ctx, proto);
+ if (JS_IsException(obj))
+ return obj;
+ arg_index = (magic == JS_AGGREGATE_ERROR);
+
+ message = argv[arg_index++];
+ if (!JS_IsUndefined(message)) {
+ msg = JS_ToString(ctx, message);
+ if (unlikely(JS_IsException(msg)))
+ goto exception;
+ JS_DefinePropertyValue(ctx, obj, JS_ATOM_message, msg,
+ JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE);
+ }
+
+ if (arg_index < argc) {
+ options = argv[arg_index];
+ if (JS_IsObject(options)) {
+ int present = JS_HasProperty(ctx, options, JS_ATOM_cause);
+ if (present < 0)
+ goto exception;
+ if (present) {
+ JSValue cause = JS_GetProperty(ctx, options, JS_ATOM_cause);
+ if (JS_IsException(cause))
+ goto exception;
+ JS_DefinePropertyValue(ctx, obj, JS_ATOM_cause, cause,
+ JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE);
+ }
+ }
+ }
+
+ if (magic == JS_AGGREGATE_ERROR) {
+ JSValue error_list = iterator_to_array(ctx, argv[0]);
+ if (JS_IsException(error_list))
+ goto exception;
+ JS_DefinePropertyValue(ctx, obj, JS_ATOM_errors, error_list,
+ JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE);
+ }
+
+ /* skip the Error() function in the backtrace */
+ build_backtrace(ctx, obj, NULL, 0, JS_BACKTRACE_FLAG_SKIP_FIRST_LEVEL);
+ return obj;
+ exception:
+ JS_FreeValue(ctx, obj);
+ return JS_EXCEPTION;
+}
+
+static JSValue js_error_toString(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValue name, msg;
+
+ if (!JS_IsObject(this_val))
+ return JS_ThrowTypeErrorNotAnObject(ctx);
+ name = JS_GetProperty(ctx, this_val, JS_ATOM_name);
+ if (JS_IsUndefined(name))
+ name = JS_AtomToString(ctx, JS_ATOM_Error);
+ else
+ name = JS_ToStringFree(ctx, name);
+ if (JS_IsException(name))
+ return JS_EXCEPTION;
+
+ msg = JS_GetProperty(ctx, this_val, JS_ATOM_message);
+ if (JS_IsUndefined(msg))
+ msg = JS_AtomToString(ctx, JS_ATOM_empty_string);
+ else
+ msg = JS_ToStringFree(ctx, msg);
+ if (JS_IsException(msg)) {
+ JS_FreeValue(ctx, name);
+ return JS_EXCEPTION;
+ }
+ if (!JS_IsEmptyString(name) && !JS_IsEmptyString(msg))
+ name = JS_ConcatString3(ctx, "", name, ": ");
+ return JS_ConcatString(ctx, name, msg);
+}
+
+static const JSCFunctionListEntry js_error_proto_funcs[] = {
+ JS_CFUNC_DEF("toString", 0, js_error_toString ),
+ JS_PROP_STRING_DEF("name", "Error", JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE ),
+ JS_PROP_STRING_DEF("message", "", JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE ),
+};
+
+/* AggregateError */
+
+/* used by C code. */
+static JSValue js_aggregate_error_constructor(JSContext *ctx,
+ JSValueConst errors)
+{
+ JSValue obj;
+
+ obj = JS_NewObjectProtoClass(ctx,
+ ctx->native_error_proto[JS_AGGREGATE_ERROR],
+ JS_CLASS_ERROR);
+ if (JS_IsException(obj))
+ return obj;
+ JS_DefinePropertyValue(ctx, obj, JS_ATOM_errors, JS_DupValue(ctx, errors),
+ JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE);
+ return obj;
+}
+
+/* Array */
+
+static int JS_CopySubArray(JSContext *ctx,
+ JSValueConst obj, int64_t to_pos,
+ int64_t from_pos, int64_t count, int dir)
+{
+ JSObject *p;
+ int64_t i, from, to, len;
+ JSValue val;
+ int fromPresent;
+
+ p = NULL;
+ if (JS_VALUE_GET_TAG(obj) == JS_TAG_OBJECT) {
+ p = JS_VALUE_GET_OBJ(obj);
+ if (p->class_id != JS_CLASS_ARRAY || !p->fast_array) {
+ p = NULL;
+ }
+ }
+
+ for (i = 0; i < count; ) {
+ if (dir < 0) {
+ from = from_pos + count - i - 1;
+ to = to_pos + count - i - 1;
+ } else {
+ from = from_pos + i;
+ to = to_pos + i;
+ }
+ if (p && p->fast_array &&
+ from >= 0 && from < (len = p->u.array.count) &&
+ to >= 0 && to < len) {
+ int64_t l, j;
+ /* Fast path for fast arrays. Since we don't look at the
+ prototype chain, we can optimize only the cases where
+ all the elements are present in the array. */
+ l = count - i;
+ if (dir < 0) {
+ l = min_int64(l, from + 1);
+ l = min_int64(l, to + 1);
+ for(j = 0; j < l; j++) {
+ set_value(ctx, &p->u.array.u.values[to - j],
+ JS_DupValue(ctx, p->u.array.u.values[from - j]));
+ }
+ } else {
+ l = min_int64(l, len - from);
+ l = min_int64(l, len - to);
+ for(j = 0; j < l; j++) {
+ set_value(ctx, &p->u.array.u.values[to + j],
+ JS_DupValue(ctx, p->u.array.u.values[from + j]));
+ }
+ }
+ i += l;
+ } else {
+ fromPresent = JS_TryGetPropertyInt64(ctx, obj, from, &val);
+ if (fromPresent < 0)
+ goto exception;
+
+ if (fromPresent) {
+ if (JS_SetPropertyInt64(ctx, obj, to, val) < 0)
+ goto exception;
+ } else {
+ if (JS_DeletePropertyInt64(ctx, obj, to, JS_PROP_THROW) < 0)
+ goto exception;
+ }
+ i++;
+ }
+ }
+ return 0;
+
+ exception:
+ return -1;
+}
+
+static JSValue js_array_constructor(JSContext *ctx, JSValueConst new_target,
+ int argc, JSValueConst *argv)
+{
+ JSValue obj;
+ int i;
+
+ obj = js_create_from_ctor(ctx, new_target, JS_CLASS_ARRAY);
+ if (JS_IsException(obj))
+ return obj;
+ if (argc == 1 && JS_IsNumber(argv[0])) {
+ uint32_t len;
+ if (JS_ToArrayLengthFree(ctx, &len, JS_DupValue(ctx, argv[0]), TRUE))
+ goto fail;
+ if (JS_SetProperty(ctx, obj, JS_ATOM_length, JS_NewUint32(ctx, len)) < 0)
+ goto fail;
+ } else {
+ for(i = 0; i < argc; i++) {
+ if (JS_SetPropertyUint32(ctx, obj, i, JS_DupValue(ctx, argv[i])) < 0)
+ goto fail;
+ }
+ }
+ return obj;
+fail:
+ JS_FreeValue(ctx, obj);
+ return JS_EXCEPTION;
+}
+
+static JSValue js_array_from(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ // from(items, mapfn = void 0, this_arg = void 0)
+ JSValueConst items = argv[0], mapfn, this_arg;
+ JSValueConst args[2];
+ JSValue stack[2];
+ JSValue iter, r, v, v2, arrayLike;
+ int64_t k, len;
+ int done, mapping;
+
+ mapping = FALSE;
+ mapfn = JS_UNDEFINED;
+ this_arg = JS_UNDEFINED;
+ r = JS_UNDEFINED;
+ arrayLike = JS_UNDEFINED;
+ stack[0] = JS_UNDEFINED;
+ stack[1] = JS_UNDEFINED;
+
+ if (argc > 1) {
+ mapfn = argv[1];
+ if (!JS_IsUndefined(mapfn)) {
+ if (check_function(ctx, mapfn))
+ goto exception;
+ mapping = 1;
+ if (argc > 2)
+ this_arg = argv[2];
+ }
+ }
+ iter = JS_GetProperty(ctx, items, JS_ATOM_Symbol_iterator);
+ if (JS_IsException(iter))
+ goto exception;
+ if (!JS_IsUndefined(iter)) {
+ JS_FreeValue(ctx, iter);
+ if (JS_IsConstructor(ctx, this_val))
+ r = JS_CallConstructor(ctx, this_val, 0, NULL);
+ else
+ r = JS_NewArray(ctx);
+ if (JS_IsException(r))
+ goto exception;
+ stack[0] = JS_DupValue(ctx, items);
+ if (js_for_of_start(ctx, &stack[1], FALSE))
+ goto exception;
+ for (k = 0;; k++) {
+ v = JS_IteratorNext(ctx, stack[0], stack[1], 0, NULL, &done);
+ if (JS_IsException(v))
+ goto exception_close;
+ if (done)
+ break;
+ if (mapping) {
+ args[0] = v;
+ args[1] = JS_NewInt32(ctx, k);
+ v2 = JS_Call(ctx, mapfn, this_arg, 2, args);
+ JS_FreeValue(ctx, v);
+ v = v2;
+ if (JS_IsException(v))
+ goto exception_close;
+ }
+ if (JS_DefinePropertyValueInt64(ctx, r, k, v,
+ JS_PROP_C_W_E | JS_PROP_THROW) < 0)
+ goto exception_close;
+ }
+ } else {
+ arrayLike = JS_ToObject(ctx, items);
+ if (JS_IsException(arrayLike))
+ goto exception;
+ if (js_get_length64(ctx, &len, arrayLike) < 0)
+ goto exception;
+ v = JS_NewInt64(ctx, len);
+ args[0] = v;
+ if (JS_IsConstructor(ctx, this_val)) {
+ r = JS_CallConstructor(ctx, this_val, 1, args);
+ } else {
+ r = js_array_constructor(ctx, JS_UNDEFINED, 1, args);
+ }
+ JS_FreeValue(ctx, v);
+ if (JS_IsException(r))
+ goto exception;
+ for(k = 0; k < len; k++) {
+ v = JS_GetPropertyInt64(ctx, arrayLike, k);
+ if (JS_IsException(v))
+ goto exception;
+ if (mapping) {
+ args[0] = v;
+ args[1] = JS_NewInt32(ctx, k);
+ v2 = JS_Call(ctx, mapfn, this_arg, 2, args);
+ JS_FreeValue(ctx, v);
+ v = v2;
+ if (JS_IsException(v))
+ goto exception;
+ }
+ if (JS_DefinePropertyValueInt64(ctx, r, k, v,
+ JS_PROP_C_W_E | JS_PROP_THROW) < 0)
+ goto exception;
+ }
+ }
+ if (JS_SetProperty(ctx, r, JS_ATOM_length, JS_NewUint32(ctx, k)) < 0)
+ goto exception;
+ goto done;
+
+ exception_close:
+ if (!JS_IsUndefined(stack[0]))
+ JS_IteratorClose(ctx, stack[0], TRUE);
+ exception:
+ JS_FreeValue(ctx, r);
+ r = JS_EXCEPTION;
+ done:
+ JS_FreeValue(ctx, arrayLike);
+ JS_FreeValue(ctx, stack[0]);
+ JS_FreeValue(ctx, stack[1]);
+ return r;
+}
+
+static JSValue js_array_of(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValue obj, args[1];
+ int i;
+
+ if (JS_IsConstructor(ctx, this_val)) {
+ args[0] = JS_NewInt32(ctx, argc);
+ obj = JS_CallConstructor(ctx, this_val, 1, (JSValueConst *)args);
+ } else {
+ obj = JS_NewArray(ctx);
+ }
+ if (JS_IsException(obj))
+ return JS_EXCEPTION;
+ for(i = 0; i < argc; i++) {
+ if (JS_CreateDataPropertyUint32(ctx, obj, i, JS_DupValue(ctx, argv[i]),
+ JS_PROP_THROW) < 0) {
+ goto fail;
+ }
+ }
+ if (JS_SetProperty(ctx, obj, JS_ATOM_length, JS_NewUint32(ctx, argc)) < 0) {
+ fail:
+ JS_FreeValue(ctx, obj);
+ return JS_EXCEPTION;
+ }
+ return obj;
+}
+
+static JSValue js_array_isArray(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ int ret;
+ ret = JS_IsArray(ctx, argv[0]);
+ if (ret < 0)
+ return JS_EXCEPTION;
+ else
+ return JS_NewBool(ctx, ret);
+}
+
+static JSValue js_get_this(JSContext *ctx,
+ JSValueConst this_val)
+{
+ return JS_DupValue(ctx, this_val);
+}
+
+static JSValue JS_ArraySpeciesCreate(JSContext *ctx, JSValueConst obj,
+ JSValueConst len_val)
+{
+ JSValue ctor, ret, species;
+ int res;
+ JSContext *realm;
+
+ res = JS_IsArray(ctx, obj);
+ if (res < 0)
+ return JS_EXCEPTION;
+ if (!res)
+ return js_array_constructor(ctx, JS_UNDEFINED, 1, &len_val);
+ ctor = JS_GetProperty(ctx, obj, JS_ATOM_constructor);
+ if (JS_IsException(ctor))
+ return ctor;
+ if (JS_IsConstructor(ctx, ctor)) {
+ /* legacy web compatibility */
+ realm = JS_GetFunctionRealm(ctx, ctor);
+ if (!realm) {
+ JS_FreeValue(ctx, ctor);
+ return JS_EXCEPTION;
+ }
+ if (realm != ctx &&
+ js_same_value(ctx, ctor, realm->array_ctor)) {
+ JS_FreeValue(ctx, ctor);
+ ctor = JS_UNDEFINED;
+ }
+ }
+ if (JS_IsObject(ctor)) {
+ species = JS_GetProperty(ctx, ctor, JS_ATOM_Symbol_species);
+ JS_FreeValue(ctx, ctor);
+ if (JS_IsException(species))
+ return species;
+ ctor = species;
+ if (JS_IsNull(ctor))
+ ctor = JS_UNDEFINED;
+ }
+ if (JS_IsUndefined(ctor)) {
+ return js_array_constructor(ctx, JS_UNDEFINED, 1, &len_val);
+ } else {
+ ret = JS_CallConstructor(ctx, ctor, 1, &len_val);
+ JS_FreeValue(ctx, ctor);
+ return ret;
+ }
+}
+
+static const JSCFunctionListEntry js_array_funcs[] = {
+ JS_CFUNC_DEF("isArray", 1, js_array_isArray ),
+ JS_CFUNC_DEF("from", 1, js_array_from ),
+ JS_CFUNC_DEF("of", 0, js_array_of ),
+ JS_CGETSET_DEF("[Symbol.species]", js_get_this, NULL ),
+};
+
+static int JS_isConcatSpreadable(JSContext *ctx, JSValueConst obj)
+{
+ JSValue val;
+
+ if (!JS_IsObject(obj))
+ return FALSE;
+ val = JS_GetProperty(ctx, obj, JS_ATOM_Symbol_isConcatSpreadable);
+ if (JS_IsException(val))
+ return -1;
+ if (!JS_IsUndefined(val))
+ return JS_ToBoolFree(ctx, val);
+ return JS_IsArray(ctx, obj);
+}
+
+static JSValue js_array_at(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValue obj, ret;
+ int64_t len, idx;
+ JSValue *arrp;
+ uint32_t count;
+
+ obj = JS_ToObject(ctx, this_val);
+ if (js_get_length64(ctx, &len, obj))
+ goto exception;
+
+ if (JS_ToInt64Sat(ctx, &idx, argv[0]))
+ goto exception;
+
+ if (idx < 0)
+ idx = len + idx;
+ if (idx < 0 || idx >= len) {
+ ret = JS_UNDEFINED;
+ } else if (js_get_fast_array(ctx, obj, &arrp, &count) && idx < count) {
+ ret = JS_DupValue(ctx, arrp[idx]);
+ } else {
+ int present = JS_TryGetPropertyInt64(ctx, obj, idx, &ret);
+ if (present < 0)
+ goto exception;
+ if (!present)
+ ret = JS_UNDEFINED;
+ }
+ JS_FreeValue(ctx, obj);
+ return ret;
+ exception:
+ JS_FreeValue(ctx, obj);
+ return JS_EXCEPTION;
+}
+
+static JSValue js_array_with(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValue arr, obj, ret, *arrp, *pval;
+ JSObject *p;
+ int64_t i, len, idx;
+ uint32_t count32;
+
+ ret = JS_EXCEPTION;
+ arr = JS_UNDEFINED;
+ obj = JS_ToObject(ctx, this_val);
+ if (js_get_length64(ctx, &len, obj))
+ goto exception;
+
+ if (JS_ToInt64Sat(ctx, &idx, argv[0]))
+ goto exception;
+
+ if (idx < 0)
+ idx = len + idx;
+
+ if (idx < 0 || idx >= len) {
+ JS_ThrowRangeError(ctx, "invalid array index: %" PRId64, idx);
+ goto exception;
+ }
+
+ arr = js_allocate_fast_array(ctx, len);
+ if (JS_IsException(arr))
+ goto exception;
+
+ p = JS_VALUE_GET_OBJ(arr);
+ i = 0;
+ pval = p->u.array.u.values;
+ if (js_get_fast_array(ctx, obj, &arrp, &count32) && count32 == len) {
+ for (; i < idx; i++, pval++)
+ *pval = JS_DupValue(ctx, arrp[i]);
+ *pval = JS_DupValue(ctx, argv[1]);
+ for (i++, pval++; i < len; i++, pval++)
+ *pval = JS_DupValue(ctx, arrp[i]);
+ } else {
+ for (; i < idx; i++, pval++)
+ if (-1 == JS_TryGetPropertyInt64(ctx, obj, i, pval))
+ goto fill_and_fail;
+ *pval = JS_DupValue(ctx, argv[1]);
+ for (i++, pval++; i < len; i++, pval++) {
+ if (-1 == JS_TryGetPropertyInt64(ctx, obj, i, pval)) {
+ fill_and_fail:
+ for (; i < len; i++, pval++)
+ *pval = JS_UNDEFINED;
+ goto exception;
+ }
+ }
+ }
+
+ if (JS_SetProperty(ctx, arr, JS_ATOM_length, JS_NewInt64(ctx, len)) < 0)
+ goto exception;
+
+ ret = arr;
+ arr = JS_UNDEFINED;
+
+exception:
+ JS_FreeValue(ctx, arr);
+ JS_FreeValue(ctx, obj);
+ return ret;
+}
+
+static JSValue js_array_concat(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValue obj, arr, val;
+ JSValueConst e;
+ int64_t len, k, n;
+ int i, res;
+
+ arr = JS_UNDEFINED;
+ obj = JS_ToObject(ctx, this_val);
+ if (JS_IsException(obj))
+ goto exception;
+
+ arr = JS_ArraySpeciesCreate(ctx, obj, JS_NewInt32(ctx, 0));
+ if (JS_IsException(arr))
+ goto exception;
+ n = 0;
+ for (i = -1; i < argc; i++) {
+ if (i < 0)
+ e = obj;
+ else
+ e = argv[i];
+
+ res = JS_isConcatSpreadable(ctx, e);
+ if (res < 0)
+ goto exception;
+ if (res) {
+ if (js_get_length64(ctx, &len, e))
+ goto exception;
+ if (n + len > MAX_SAFE_INTEGER) {
+ JS_ThrowTypeError(ctx, "Array loo long");
+ goto exception;
+ }
+ for (k = 0; k < len; k++, n++) {
+ res = JS_TryGetPropertyInt64(ctx, e, k, &val);
+ if (res < 0)
+ goto exception;
+ if (res) {
+ if (JS_DefinePropertyValueInt64(ctx, arr, n, val,
+ JS_PROP_C_W_E | JS_PROP_THROW) < 0)
+ goto exception;
+ }
+ }
+ } else {
+ if (n >= MAX_SAFE_INTEGER) {
+ JS_ThrowTypeError(ctx, "Array loo long");
+ goto exception;
+ }
+ if (JS_DefinePropertyValueInt64(ctx, arr, n, JS_DupValue(ctx, e),
+ JS_PROP_C_W_E | JS_PROP_THROW) < 0)
+ goto exception;
+ n++;
+ }
+ }
+ if (JS_SetProperty(ctx, arr, JS_ATOM_length, JS_NewInt64(ctx, n)) < 0)
+ goto exception;
+
+ JS_FreeValue(ctx, obj);
+ return arr;
+
+exception:
+ JS_FreeValue(ctx, arr);
+ JS_FreeValue(ctx, obj);
+ return JS_EXCEPTION;
+}
+
+#define special_every 0
+#define special_some 1
+#define special_forEach 2
+#define special_map 3
+#define special_filter 4
+#define special_TA 8
+
+static int js_typed_array_get_length_internal(JSContext *ctx, JSValueConst obj);
+
+static JSValue js_typed_array___speciesCreate(JSContext *ctx,
+ JSValueConst this_val,
+ int argc, JSValueConst *argv);
+
+static JSValue js_array_every(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int special)
+{
+ JSValue obj, val, index_val, res, ret;
+ JSValueConst args[3];
+ JSValueConst func, this_arg;
+ int64_t len, k, n;
+ int present;
+
+ ret = JS_UNDEFINED;
+ val = JS_UNDEFINED;
+ if (special & special_TA) {
+ obj = JS_DupValue(ctx, this_val);
+ len = js_typed_array_get_length_internal(ctx, obj);
+ if (len < 0)
+ goto exception;
+ } else {
+ obj = JS_ToObject(ctx, this_val);
+ if (js_get_length64(ctx, &len, obj))
+ goto exception;
+ }
+ func = argv[0];
+ this_arg = JS_UNDEFINED;
+ if (argc > 1)
+ this_arg = argv[1];
+
+ if (check_function(ctx, func))
+ goto exception;
+
+ switch (special) {
+ case special_every:
+ case special_every | special_TA:
+ ret = JS_TRUE;
+ break;
+ case special_some:
+ case special_some | special_TA:
+ ret = JS_FALSE;
+ break;
+ case special_map:
+ /* XXX: JS_ArraySpeciesCreate should take int64_t */
+ ret = JS_ArraySpeciesCreate(ctx, obj, JS_NewInt64(ctx, len));
+ if (JS_IsException(ret))
+ goto exception;
+ break;
+ case special_filter:
+ ret = JS_ArraySpeciesCreate(ctx, obj, JS_NewInt32(ctx, 0));
+ if (JS_IsException(ret))
+ goto exception;
+ break;
+ case special_map | special_TA:
+ args[0] = obj;
+ args[1] = JS_NewInt32(ctx, len);
+ ret = js_typed_array___speciesCreate(ctx, JS_UNDEFINED, 2, args);
+ if (JS_IsException(ret))
+ goto exception;
+ break;
+ case special_filter | special_TA:
+ ret = JS_NewArray(ctx);
+ if (JS_IsException(ret))
+ goto exception;
+ break;
+ }
+ n = 0;
+
+ for(k = 0; k < len; k++) {
+ if (special & special_TA) {
+ val = JS_GetPropertyInt64(ctx, obj, k);
+ if (JS_IsException(val))
+ goto exception;
+ present = TRUE;
+ } else {
+ present = JS_TryGetPropertyInt64(ctx, obj, k, &val);
+ if (present < 0)
+ goto exception;
+ }
+ if (present) {
+ index_val = JS_NewInt64(ctx, k);
+ if (JS_IsException(index_val))
+ goto exception;
+ args[0] = val;
+ args[1] = index_val;
+ args[2] = obj;
+ res = JS_Call(ctx, func, this_arg, 3, args);
+ JS_FreeValue(ctx, index_val);
+ if (JS_IsException(res))
+ goto exception;
+ switch (special) {
+ case special_every:
+ case special_every | special_TA:
+ if (!JS_ToBoolFree(ctx, res)) {
+ ret = JS_FALSE;
+ goto done;
+ }
+ break;
+ case special_some:
+ case special_some | special_TA:
+ if (JS_ToBoolFree(ctx, res)) {
+ ret = JS_TRUE;
+ goto done;
+ }
+ break;
+ case special_map:
+ if (JS_DefinePropertyValueInt64(ctx, ret, k, res,
+ JS_PROP_C_W_E | JS_PROP_THROW) < 0)
+ goto exception;
+ break;
+ case special_map | special_TA:
+ if (JS_SetPropertyValue(ctx, ret, JS_NewInt32(ctx, k), res, JS_PROP_THROW) < 0)
+ goto exception;
+ break;
+ case special_filter:
+ case special_filter | special_TA:
+ if (JS_ToBoolFree(ctx, res)) {
+ if (JS_DefinePropertyValueInt64(ctx, ret, n++, JS_DupValue(ctx, val),
+ JS_PROP_C_W_E | JS_PROP_THROW) < 0)
+ goto exception;
+ }
+ break;
+ default:
+ JS_FreeValue(ctx, res);
+ break;
+ }
+ JS_FreeValue(ctx, val);
+ val = JS_UNDEFINED;
+ }
+ }
+done:
+ if (special == (special_filter | special_TA)) {
+ JSValue arr;
+ args[0] = obj;
+ args[1] = JS_NewInt32(ctx, n);
+ arr = js_typed_array___speciesCreate(ctx, JS_UNDEFINED, 2, args);
+ if (JS_IsException(arr))
+ goto exception;
+ args[0] = ret;
+ res = JS_Invoke(ctx, arr, JS_ATOM_set, 1, args);
+ if (check_exception_free(ctx, res))
+ goto exception;
+ JS_FreeValue(ctx, ret);
+ ret = arr;
+ }
+ JS_FreeValue(ctx, val);
+ JS_FreeValue(ctx, obj);
+ return ret;
+
+exception:
+ JS_FreeValue(ctx, ret);
+ JS_FreeValue(ctx, val);
+ JS_FreeValue(ctx, obj);
+ return JS_EXCEPTION;
+}
+
+#define special_reduce 0
+#define special_reduceRight 1
+
+static JSValue js_array_reduce(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int special)
+{
+ JSValue obj, val, index_val, acc, acc1;
+ JSValueConst args[4];
+ JSValueConst func;
+ int64_t len, k, k1;
+ int present;
+
+ acc = JS_UNDEFINED;
+ val = JS_UNDEFINED;
+ if (special & special_TA) {
+ obj = JS_DupValue(ctx, this_val);
+ len = js_typed_array_get_length_internal(ctx, obj);
+ if (len < 0)
+ goto exception;
+ } else {
+ obj = JS_ToObject(ctx, this_val);
+ if (js_get_length64(ctx, &len, obj))
+ goto exception;
+ }
+ func = argv[0];
+
+ if (check_function(ctx, func))
+ goto exception;
+
+ k = 0;
+ if (argc > 1) {
+ acc = JS_DupValue(ctx, argv[1]);
+ } else {
+ for(;;) {
+ if (k >= len) {
+ JS_ThrowTypeError(ctx, "empty array");
+ goto exception;
+ }
+ k1 = (special & special_reduceRight) ? len - k - 1 : k;
+ k++;
+ if (special & special_TA) {
+ acc = JS_GetPropertyInt64(ctx, obj, k1);
+ if (JS_IsException(acc))
+ goto exception;
+ break;
+ } else {
+ present = JS_TryGetPropertyInt64(ctx, obj, k1, &acc);
+ if (present < 0)
+ goto exception;
+ if (present)
+ break;
+ }
+ }
+ }
+ for (; k < len; k++) {
+ k1 = (special & special_reduceRight) ? len - k - 1 : k;
+ if (special & special_TA) {
+ val = JS_GetPropertyInt64(ctx, obj, k1);
+ if (JS_IsException(val))
+ goto exception;
+ present = TRUE;
+ } else {
+ present = JS_TryGetPropertyInt64(ctx, obj, k1, &val);
+ if (present < 0)
+ goto exception;
+ }
+ if (present) {
+ index_val = JS_NewInt64(ctx, k1);
+ if (JS_IsException(index_val))
+ goto exception;
+ args[0] = acc;
+ args[1] = val;
+ args[2] = index_val;
+ args[3] = obj;
+ acc1 = JS_Call(ctx, func, JS_UNDEFINED, 4, args);
+ JS_FreeValue(ctx, index_val);
+ JS_FreeValue(ctx, val);
+ val = JS_UNDEFINED;
+ if (JS_IsException(acc1))
+ goto exception;
+ JS_FreeValue(ctx, acc);
+ acc = acc1;
+ }
+ }
+ JS_FreeValue(ctx, obj);
+ return acc;
+
+exception:
+ JS_FreeValue(ctx, acc);
+ JS_FreeValue(ctx, val);
+ JS_FreeValue(ctx, obj);
+ return JS_EXCEPTION;
+}
+
+static JSValue js_array_fill(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValue obj;
+ int64_t len, start, end;
+
+ obj = JS_ToObject(ctx, this_val);
+ if (js_get_length64(ctx, &len, obj))
+ goto exception;
+
+ start = 0;
+ if (argc > 1 && !JS_IsUndefined(argv[1])) {
+ if (JS_ToInt64Clamp(ctx, &start, argv[1], 0, len, len))
+ goto exception;
+ }
+
+ end = len;
+ if (argc > 2 && !JS_IsUndefined(argv[2])) {
+ if (JS_ToInt64Clamp(ctx, &end, argv[2], 0, len, len))
+ goto exception;
+ }
+
+ /* XXX: should special case fast arrays */
+ while (start < end) {
+ if (JS_SetPropertyInt64(ctx, obj, start,
+ JS_DupValue(ctx, argv[0])) < 0)
+ goto exception;
+ start++;
+ }
+ return obj;
+
+ exception:
+ JS_FreeValue(ctx, obj);
+ return JS_EXCEPTION;
+}
+
+static JSValue js_array_includes(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValue obj, val;
+ int64_t len, n;
+ JSValue *arrp;
+ uint32_t count;
+ int res;
+
+ obj = JS_ToObject(ctx, this_val);
+ if (js_get_length64(ctx, &len, obj))
+ goto exception;
+
+ res = FALSE;
+ if (len > 0) {
+ n = 0;
+ if (argc > 1) {
+ if (JS_ToInt64Clamp(ctx, &n, argv[1], 0, len, len))
+ goto exception;
+ }
+ if (js_get_fast_array(ctx, obj, &arrp, &count)) {
+ for (; n < count; n++) {
+ if (js_strict_eq2(ctx, JS_DupValue(ctx, argv[0]),
+ JS_DupValue(ctx, arrp[n]),
+ JS_EQ_SAME_VALUE_ZERO)) {
+ res = TRUE;
+ goto done;
+ }
+ }
+ }
+ for (; n < len; n++) {
+ val = JS_GetPropertyInt64(ctx, obj, n);
+ if (JS_IsException(val))
+ goto exception;
+ if (js_strict_eq2(ctx, JS_DupValue(ctx, argv[0]), val,
+ JS_EQ_SAME_VALUE_ZERO)) {
+ res = TRUE;
+ break;
+ }
+ }
+ }
+ done:
+ JS_FreeValue(ctx, obj);
+ return JS_NewBool(ctx, res);
+
+ exception:
+ JS_FreeValue(ctx, obj);
+ return JS_EXCEPTION;
+}
+
+static JSValue js_array_indexOf(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValue obj, val;
+ int64_t len, n, res;
+ JSValue *arrp;
+ uint32_t count;
+
+ obj = JS_ToObject(ctx, this_val);
+ if (js_get_length64(ctx, &len, obj))
+ goto exception;
+
+ res = -1;
+ if (len > 0) {
+ n = 0;
+ if (argc > 1) {
+ if (JS_ToInt64Clamp(ctx, &n, argv[1], 0, len, len))
+ goto exception;
+ }
+ if (js_get_fast_array(ctx, obj, &arrp, &count)) {
+ for (; n < count; n++) {
+ if (js_strict_eq2(ctx, JS_DupValue(ctx, argv[0]),
+ JS_DupValue(ctx, arrp[n]), JS_EQ_STRICT)) {
+ res = n;
+ goto done;
+ }
+ }
+ }
+ for (; n < len; n++) {
+ int present = JS_TryGetPropertyInt64(ctx, obj, n, &val);
+ if (present < 0)
+ goto exception;
+ if (present) {
+ if (js_strict_eq2(ctx, JS_DupValue(ctx, argv[0]), val, JS_EQ_STRICT)) {
+ res = n;
+ break;
+ }
+ }
+ }
+ }
+ done:
+ JS_FreeValue(ctx, obj);
+ return JS_NewInt64(ctx, res);
+
+ exception:
+ JS_FreeValue(ctx, obj);
+ return JS_EXCEPTION;
+}
+
+static JSValue js_array_lastIndexOf(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValue obj, val;
+ int64_t len, n, res;
+ int present;
+
+ obj = JS_ToObject(ctx, this_val);
+ if (js_get_length64(ctx, &len, obj))
+ goto exception;
+
+ res = -1;
+ if (len > 0) {
+ n = len - 1;
+ if (argc > 1) {
+ if (JS_ToInt64Clamp(ctx, &n, argv[1], -1, len - 1, len))
+ goto exception;
+ }
+ /* XXX: should special case fast arrays */
+ for (; n >= 0; n--) {
+ present = JS_TryGetPropertyInt64(ctx, obj, n, &val);
+ if (present < 0)
+ goto exception;
+ if (present) {
+ if (js_strict_eq2(ctx, JS_DupValue(ctx, argv[0]), val, JS_EQ_STRICT)) {
+ res = n;
+ break;
+ }
+ }
+ }
+ }
+ JS_FreeValue(ctx, obj);
+ return JS_NewInt64(ctx, res);
+
+ exception:
+ JS_FreeValue(ctx, obj);
+ return JS_EXCEPTION;
+}
+
+enum {
+ ArrayFind,
+ ArrayFindIndex,
+ ArrayFindLast,
+ ArrayFindLastIndex,
+};
+
+static JSValue js_array_find(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int mode)
+{
+ JSValueConst func, this_arg;
+ JSValueConst args[3];
+ JSValue obj, val, index_val, res;
+ int64_t len, k, end;
+ int dir;
+
+ index_val = JS_UNDEFINED;
+ val = JS_UNDEFINED;
+ obj = JS_ToObject(ctx, this_val);
+ if (js_get_length64(ctx, &len, obj))
+ goto exception;
+
+ func = argv[0];
+ if (check_function(ctx, func))
+ goto exception;
+
+ this_arg = JS_UNDEFINED;
+ if (argc > 1)
+ this_arg = argv[1];
+
+ k = 0;
+ dir = 1;
+ end = len;
+ if (mode == ArrayFindLast || mode == ArrayFindLastIndex) {
+ k = len - 1;
+ dir = -1;
+ end = -1;
+ }
+
+ // TODO(bnoordhuis) add fast path for fast arrays
+ for(; k != end; k += dir) {
+ index_val = JS_NewInt64(ctx, k);
+ if (JS_IsException(index_val))
+ goto exception;
+ val = JS_GetPropertyValue(ctx, obj, index_val);
+ if (JS_IsException(val))
+ goto exception;
+ args[0] = val;
+ args[1] = index_val;
+ args[2] = this_val;
+ res = JS_Call(ctx, func, this_arg, 3, args);
+ if (JS_IsException(res))
+ goto exception;
+ if (JS_ToBoolFree(ctx, res)) {
+ if (mode == ArrayFindIndex || mode == ArrayFindLastIndex) {
+ JS_FreeValue(ctx, val);
+ JS_FreeValue(ctx, obj);
+ return index_val;
+ } else {
+ JS_FreeValue(ctx, index_val);
+ JS_FreeValue(ctx, obj);
+ return val;
+ }
+ }
+ JS_FreeValue(ctx, val);
+ JS_FreeValue(ctx, index_val);
+ }
+ JS_FreeValue(ctx, obj);
+ if (mode == ArrayFindIndex || mode == ArrayFindLastIndex)
+ return JS_NewInt32(ctx, -1);
+ else
+ return JS_UNDEFINED;
+
+exception:
+ JS_FreeValue(ctx, index_val);
+ JS_FreeValue(ctx, val);
+ JS_FreeValue(ctx, obj);
+ return JS_EXCEPTION;
+}
+
+static JSValue js_array_toString(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValue obj, method, ret;
+
+ obj = JS_ToObject(ctx, this_val);
+ if (JS_IsException(obj))
+ return JS_EXCEPTION;
+ method = JS_GetProperty(ctx, obj, JS_ATOM_join);
+ if (JS_IsException(method)) {
+ ret = JS_EXCEPTION;
+ } else
+ if (!JS_IsFunction(ctx, method)) {
+ /* Use intrinsic Object.prototype.toString */
+ JS_FreeValue(ctx, method);
+ ret = js_object_toString(ctx, obj, 0, NULL);
+ } else {
+ ret = JS_CallFree(ctx, method, obj, 0, NULL);
+ }
+ JS_FreeValue(ctx, obj);
+ return ret;
+}
+
+static JSValue js_array_join(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int toLocaleString)
+{
+ JSValue obj, sep = JS_UNDEFINED, el;
+ StringBuffer b_s, *b = &b_s;
+ JSString *p = NULL;
+ int64_t i, n;
+ int c;
+
+ obj = JS_ToObject(ctx, this_val);
+ if (js_get_length64(ctx, &n, obj))
+ goto exception;
+
+ c = ','; /* default separator */
+ if (!toLocaleString && argc > 0 && !JS_IsUndefined(argv[0])) {
+ sep = JS_ToString(ctx, argv[0]);
+ if (JS_IsException(sep))
+ goto exception;
+ p = JS_VALUE_GET_STRING(sep);
+ if (p->len == 1 && !p->is_wide_char)
+ c = p->u.str8[0];
+ else
+ c = -1;
+ }
+ string_buffer_init(ctx, b, 0);
+
+ for(i = 0; i < n; i++) {
+ if (i > 0) {
+ if (c >= 0) {
+ string_buffer_putc8(b, c);
+ } else {
+ string_buffer_concat(b, p, 0, p->len);
+ }
+ }
+ el = JS_GetPropertyUint32(ctx, obj, i);
+ if (JS_IsException(el))
+ goto fail;
+ if (!JS_IsNull(el) && !JS_IsUndefined(el)) {
+ if (toLocaleString) {
+ el = JS_ToLocaleStringFree(ctx, el);
+ }
+ if (string_buffer_concat_value_free(b, el))
+ goto fail;
+ }
+ }
+ JS_FreeValue(ctx, sep);
+ JS_FreeValue(ctx, obj);
+ return string_buffer_end(b);
+
+fail:
+ string_buffer_free(b);
+ JS_FreeValue(ctx, sep);
+exception:
+ JS_FreeValue(ctx, obj);
+ return JS_EXCEPTION;
+}
+
+static JSValue js_array_pop(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int shift)
+{
+ JSValue obj, res = JS_UNDEFINED;
+ int64_t len, newLen;
+ JSValue *arrp;
+ uint32_t count32;
+
+ obj = JS_ToObject(ctx, this_val);
+ if (js_get_length64(ctx, &len, obj))
+ goto exception;
+ newLen = 0;
+ if (len > 0) {
+ newLen = len - 1;
+ /* Special case fast arrays */
+ if (js_get_fast_array(ctx, obj, &arrp, &count32) && count32 == len) {
+ JSObject *p = JS_VALUE_GET_OBJ(obj);
+ if (shift) {
+ res = arrp[0];
+ memmove(arrp, arrp + 1, (count32 - 1) * sizeof(*arrp));
+ p->u.array.count--;
+ } else {
+ res = arrp[count32 - 1];
+ p->u.array.count--;
+ }
+ } else {
+ if (shift) {
+ res = JS_GetPropertyInt64(ctx, obj, 0);
+ if (JS_IsException(res))
+ goto exception;
+ if (JS_CopySubArray(ctx, obj, 0, 1, len - 1, +1))
+ goto exception;
+ } else {
+ res = JS_GetPropertyInt64(ctx, obj, newLen);
+ if (JS_IsException(res))
+ goto exception;
+ }
+ if (JS_DeletePropertyInt64(ctx, obj, newLen, JS_PROP_THROW) < 0)
+ goto exception;
+ }
+ }
+ if (JS_SetProperty(ctx, obj, JS_ATOM_length, JS_NewInt64(ctx, newLen)) < 0)
+ goto exception;
+
+ JS_FreeValue(ctx, obj);
+ return res;
+
+ exception:
+ JS_FreeValue(ctx, res);
+ JS_FreeValue(ctx, obj);
+ return JS_EXCEPTION;
+}
+
+static JSValue js_array_push(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int unshift)
+{
+ JSValue obj;
+ int i;
+ int64_t len, from, newLen;
+
+ obj = JS_ToObject(ctx, this_val);
+ if (js_get_length64(ctx, &len, obj))
+ goto exception;
+ newLen = len + argc;
+ if (newLen > MAX_SAFE_INTEGER) {
+ JS_ThrowTypeError(ctx, "Array loo long");
+ goto exception;
+ }
+ from = len;
+ if (unshift && argc > 0) {
+ if (JS_CopySubArray(ctx, obj, argc, 0, len, -1))
+ goto exception;
+ from = 0;
+ }
+ for(i = 0; i < argc; i++) {
+ if (JS_SetPropertyInt64(ctx, obj, from + i,
+ JS_DupValue(ctx, argv[i])) < 0)
+ goto exception;
+ }
+ if (JS_SetProperty(ctx, obj, JS_ATOM_length, JS_NewInt64(ctx, newLen)) < 0)
+ goto exception;
+
+ JS_FreeValue(ctx, obj);
+ return JS_NewInt64(ctx, newLen);
+
+ exception:
+ JS_FreeValue(ctx, obj);
+ return JS_EXCEPTION;
+}
+
+static JSValue js_array_reverse(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValue obj, lval, hval;
+ JSValue *arrp;
+ int64_t len, l, h;
+ int l_present, h_present;
+ uint32_t count32;
+
+ lval = JS_UNDEFINED;
+ obj = JS_ToObject(ctx, this_val);
+ if (js_get_length64(ctx, &len, obj))
+ goto exception;
+
+ /* Special case fast arrays */
+ if (js_get_fast_array(ctx, obj, &arrp, &count32) && count32 == len) {
+ uint32_t ll, hh;
+
+ if (count32 > 1) {
+ for (ll = 0, hh = count32 - 1; ll < hh; ll++, hh--) {
+ lval = arrp[ll];
+ arrp[ll] = arrp[hh];
+ arrp[hh] = lval;
+ }
+ }
+ return obj;
+ }
+
+ for (l = 0, h = len - 1; l < h; l++, h--) {
+ l_present = JS_TryGetPropertyInt64(ctx, obj, l, &lval);
+ if (l_present < 0)
+ goto exception;
+ h_present = JS_TryGetPropertyInt64(ctx, obj, h, &hval);
+ if (h_present < 0)
+ goto exception;
+ if (h_present) {
+ if (JS_SetPropertyInt64(ctx, obj, l, hval) < 0)
+ goto exception;
+
+ if (l_present) {
+ if (JS_SetPropertyInt64(ctx, obj, h, lval) < 0) {
+ lval = JS_UNDEFINED;
+ goto exception;
+ }
+ lval = JS_UNDEFINED;
+ } else {
+ if (JS_DeletePropertyInt64(ctx, obj, h, JS_PROP_THROW) < 0)
+ goto exception;
+ }
+ } else {
+ if (l_present) {
+ if (JS_DeletePropertyInt64(ctx, obj, l, JS_PROP_THROW) < 0)
+ goto exception;
+ if (JS_SetPropertyInt64(ctx, obj, h, lval) < 0) {
+ lval = JS_UNDEFINED;
+ goto exception;
+ }
+ lval = JS_UNDEFINED;
+ }
+ }
+ }
+ return obj;
+
+ exception:
+ JS_FreeValue(ctx, lval);
+ JS_FreeValue(ctx, obj);
+ return JS_EXCEPTION;
+}
+
+// Note: a.toReversed() is a.slice().reverse() with the twist that a.slice()
+// leaves holes in sparse arrays intact whereas a.toReversed() replaces them
+// with undefined, thus in effect creating a dense array.
+// Does not use Array[@@species], always returns a base Array.
+static JSValue js_array_toReversed(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValue arr, obj, ret, *arrp, *pval;
+ JSObject *p;
+ int64_t i, len;
+ uint32_t count32;
+
+ ret = JS_EXCEPTION;
+ arr = JS_UNDEFINED;
+ obj = JS_ToObject(ctx, this_val);
+ if (js_get_length64(ctx, &len, obj))
+ goto exception;
+
+ arr = js_allocate_fast_array(ctx, len);
+ if (JS_IsException(arr))
+ goto exception;
+
+ if (len > 0) {
+ p = JS_VALUE_GET_OBJ(arr);
+
+ i = len - 1;
+ pval = p->u.array.u.values;
+ if (js_get_fast_array(ctx, obj, &arrp, &count32) && count32 == len) {
+ for (; i >= 0; i--, pval++)
+ *pval = JS_DupValue(ctx, arrp[i]);
+ } else {
+ // Query order is observable; test262 expects descending order.
+ for (; i >= 0; i--, pval++) {
+ if (-1 == JS_TryGetPropertyInt64(ctx, obj, i, pval)) {
+ // Exception; initialize remaining elements.
+ for (; i >= 0; i--, pval++)
+ *pval = JS_UNDEFINED;
+ goto exception;
+ }
+ }
+ }
+
+ if (JS_SetProperty(ctx, arr, JS_ATOM_length, JS_NewInt64(ctx, len)) < 0)
+ goto exception;
+ }
+
+ ret = arr;
+ arr = JS_UNDEFINED;
+
+exception:
+ JS_FreeValue(ctx, arr);
+ JS_FreeValue(ctx, obj);
+ return ret;
+}
+
+static JSValue js_array_slice(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int splice)
+{
+ JSValue obj, arr, val, len_val;
+ int64_t len, start, k, final, n, count, del_count, new_len;
+ int kPresent;
+ JSValue *arrp;
+ uint32_t count32, i, item_count;
+
+ arr = JS_UNDEFINED;
+ obj = JS_ToObject(ctx, this_val);
+ if (js_get_length64(ctx, &len, obj))
+ goto exception;
+
+ if (JS_ToInt64Clamp(ctx, &start, argv[0], 0, len, len))
+ goto exception;
+
+ if (splice) {
+ if (argc == 0) {
+ item_count = 0;
+ del_count = 0;
+ } else
+ if (argc == 1) {
+ item_count = 0;
+ del_count = len - start;
+ } else {
+ item_count = argc - 2;
+ if (JS_ToInt64Clamp(ctx, &del_count, argv[1], 0, len - start, 0))
+ goto exception;
+ }
+ if (len + item_count - del_count > MAX_SAFE_INTEGER) {
+ JS_ThrowTypeError(ctx, "Array loo long");
+ goto exception;
+ }
+ count = del_count;
+ } else {
+ item_count = 0; /* avoid warning */
+ final = len;
+ if (!JS_IsUndefined(argv[1])) {
+ if (JS_ToInt64Clamp(ctx, &final, argv[1], 0, len, len))
+ goto exception;
+ }
+ count = max_int64(final - start, 0);
+ }
+ len_val = JS_NewInt64(ctx, count);
+ arr = JS_ArraySpeciesCreate(ctx, obj, len_val);
+ JS_FreeValue(ctx, len_val);
+ if (JS_IsException(arr))
+ goto exception;
+
+ k = start;
+ final = start + count;
+ n = 0;
+ /* The fast array test on arr ensures that
+ JS_CreateDataPropertyUint32() won't modify obj in case arr is
+ an exotic object */
+ /* Special case fast arrays */
+ if (js_get_fast_array(ctx, obj, &arrp, &count32) &&
+ js_is_fast_array(ctx, arr)) {
+ /* XXX: should share code with fast array constructor */
+ for (; k < final && k < count32; k++, n++) {
+ if (JS_CreateDataPropertyUint32(ctx, arr, n, JS_DupValue(ctx, arrp[k]), JS_PROP_THROW) < 0)
+ goto exception;
+ }
+ }
+ /* Copy the remaining elements if any (handle case of inherited properties) */
+ for (; k < final; k++, n++) {
+ kPresent = JS_TryGetPropertyInt64(ctx, obj, k, &val);
+ if (kPresent < 0)
+ goto exception;
+ if (kPresent) {
+ if (JS_CreateDataPropertyUint32(ctx, arr, n, val, JS_PROP_THROW) < 0)
+ goto exception;
+ }
+ }
+ if (JS_SetProperty(ctx, arr, JS_ATOM_length, JS_NewInt64(ctx, n)) < 0)
+ goto exception;
+
+ if (splice) {
+ new_len = len + item_count - del_count;
+ if (item_count != del_count) {
+ if (JS_CopySubArray(ctx, obj, start + item_count,
+ start + del_count, len - (start + del_count),
+ item_count <= del_count ? +1 : -1) < 0)
+ goto exception;
+
+ for (k = len; k-- > new_len; ) {
+ if (JS_DeletePropertyInt64(ctx, obj, k, JS_PROP_THROW) < 0)
+ goto exception;
+ }
+ }
+ for (i = 0; i < item_count; i++) {
+ if (JS_SetPropertyInt64(ctx, obj, start + i, JS_DupValue(ctx, argv[i + 2])) < 0)
+ goto exception;
+ }
+ if (JS_SetProperty(ctx, obj, JS_ATOM_length, JS_NewInt64(ctx, new_len)) < 0)
+ goto exception;
+ }
+ JS_FreeValue(ctx, obj);
+ return arr;
+
+ exception:
+ JS_FreeValue(ctx, obj);
+ JS_FreeValue(ctx, arr);
+ return JS_EXCEPTION;
+}
+
+static JSValue js_array_toSpliced(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValue arr, obj, ret, *arrp, *pval, *last;
+ JSObject *p;
+ int64_t i, j, len, newlen, start, add, del;
+ uint32_t count32;
+
+ pval = NULL;
+ last = NULL;
+ ret = JS_EXCEPTION;
+ arr = JS_UNDEFINED;
+
+ obj = JS_ToObject(ctx, this_val);
+ if (js_get_length64(ctx, &len, obj))
+ goto exception;
+
+ start = 0;
+ if (argc > 0)
+ if (JS_ToInt64Clamp(ctx, &start, argv[0], 0, len, len))
+ goto exception;
+
+ del = 0;
+ if (argc > 0)
+ del = len - start;
+ if (argc > 1)
+ if (JS_ToInt64Clamp(ctx, &del, argv[1], 0, del, 0))
+ goto exception;
+
+ add = 0;
+ if (argc > 2)
+ add = argc - 2;
+
+ newlen = len + add - del;
+ if (newlen > MAX_SAFE_INTEGER) {
+ JS_ThrowTypeError(ctx, "invalid array length");
+ goto exception;
+ }
+
+ arr = js_allocate_fast_array(ctx, newlen);
+ if (JS_IsException(arr))
+ goto exception;
+
+ if (newlen <= 0)
+ goto done;
+
+ p = JS_VALUE_GET_OBJ(arr);
+ pval = &p->u.array.u.values[0];
+ last = &p->u.array.u.values[newlen];
+
+ if (js_get_fast_array(ctx, obj, &arrp, &count32) && count32 == len) {
+ for (i = 0; i < start; i++, pval++)
+ *pval = JS_DupValue(ctx, arrp[i]);
+ for (j = 0; j < add; j++, pval++)
+ *pval = JS_DupValue(ctx, argv[2 + j]);
+ for (i += del; i < len; i++, pval++)
+ *pval = JS_DupValue(ctx, arrp[i]);
+ } else {
+ for (i = 0; i < start; i++, pval++)
+ if (-1 == JS_TryGetPropertyInt64(ctx, obj, i, pval))
+ goto exception;
+ for (j = 0; j < add; j++, pval++)
+ *pval = JS_DupValue(ctx, argv[2 + j]);
+ for (i += del; i < len; i++, pval++)
+ if (-1 == JS_TryGetPropertyInt64(ctx, obj, i, pval))
+ goto exception;
+ }
+
+ assert(pval == last);
+
+ if (JS_SetProperty(ctx, arr, JS_ATOM_length, JS_NewInt64(ctx, newlen)) < 0)
+ goto exception;
+
+done:
+ ret = arr;
+ arr = JS_UNDEFINED;
+
+exception:
+ while (pval != last)
+ *pval++ = JS_UNDEFINED;
+
+ JS_FreeValue(ctx, arr);
+ JS_FreeValue(ctx, obj);
+ return ret;
+}
+
+static JSValue js_array_copyWithin(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValue obj;
+ int64_t len, from, to, final, count;
+
+ obj = JS_ToObject(ctx, this_val);
+ if (js_get_length64(ctx, &len, obj))
+ goto exception;
+
+ if (JS_ToInt64Clamp(ctx, &to, argv[0], 0, len, len))
+ goto exception;
+
+ if (JS_ToInt64Clamp(ctx, &from, argv[1], 0, len, len))
+ goto exception;
+
+ final = len;
+ if (argc > 2 && !JS_IsUndefined(argv[2])) {
+ if (JS_ToInt64Clamp(ctx, &final, argv[2], 0, len, len))
+ goto exception;
+ }
+
+ count = min_int64(final - from, len - to);
+
+ if (JS_CopySubArray(ctx, obj, to, from, count,
+ (from < to && to < from + count) ? -1 : +1))
+ goto exception;
+
+ return obj;
+
+ exception:
+ JS_FreeValue(ctx, obj);
+ return JS_EXCEPTION;
+}
+
+static int64_t JS_FlattenIntoArray(JSContext *ctx, JSValueConst target,
+ JSValueConst source, int64_t sourceLen,
+ int64_t targetIndex, int depth,
+ JSValueConst mapperFunction,
+ JSValueConst thisArg)
+{
+ JSValue element;
+ int64_t sourceIndex, elementLen;
+ int present, is_array;
+
+ if (js_check_stack_overflow(ctx->rt, 0)) {
+ JS_ThrowStackOverflow(ctx);
+ return -1;
+ }
+
+ for (sourceIndex = 0; sourceIndex < sourceLen; sourceIndex++) {
+ present = JS_TryGetPropertyInt64(ctx, source, sourceIndex, &element);
+ if (present < 0)
+ return -1;
+ if (!present)
+ continue;
+ if (!JS_IsUndefined(mapperFunction)) {
+ JSValueConst args[3] = { element, JS_NewInt64(ctx, sourceIndex), source };
+ element = JS_Call(ctx, mapperFunction, thisArg, 3, args);
+ JS_FreeValue(ctx, (JSValue)args[0]);
+ JS_FreeValue(ctx, (JSValue)args[1]);
+ if (JS_IsException(element))
+ return -1;
+ }
+ if (depth > 0) {
+ is_array = JS_IsArray(ctx, element);
+ if (is_array < 0)
+ goto fail;
+ if (is_array) {
+ if (js_get_length64(ctx, &elementLen, element) < 0)
+ goto fail;
+ targetIndex = JS_FlattenIntoArray(ctx, target, element,
+ elementLen, targetIndex,
+ depth - 1,
+ JS_UNDEFINED, JS_UNDEFINED);
+ if (targetIndex < 0)
+ goto fail;
+ JS_FreeValue(ctx, element);
+ continue;
+ }
+ }
+ if (targetIndex >= MAX_SAFE_INTEGER) {
+ JS_ThrowTypeError(ctx, "Array too long");
+ goto fail;
+ }
+ if (JS_DefinePropertyValueInt64(ctx, target, targetIndex, element,
+ JS_PROP_C_W_E | JS_PROP_THROW) < 0)
+ return -1;
+ targetIndex++;
+ }
+ return targetIndex;
+
+fail:
+ JS_FreeValue(ctx, element);
+ return -1;
+}
+
+static JSValue js_array_flatten(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int map)
+{
+ JSValue obj, arr;
+ JSValueConst mapperFunction, thisArg;
+ int64_t sourceLen;
+ int depthNum;
+
+ arr = JS_UNDEFINED;
+ obj = JS_ToObject(ctx, this_val);
+ if (js_get_length64(ctx, &sourceLen, obj))
+ goto exception;
+
+ depthNum = 1;
+ mapperFunction = JS_UNDEFINED;
+ thisArg = JS_UNDEFINED;
+ if (map) {
+ mapperFunction = argv[0];
+ if (argc > 1) {
+ thisArg = argv[1];
+ }
+ if (check_function(ctx, mapperFunction))
+ goto exception;
+ } else {
+ if (argc > 0 && !JS_IsUndefined(argv[0])) {
+ if (JS_ToInt32Sat(ctx, &depthNum, argv[0]) < 0)
+ goto exception;
+ }
+ }
+ arr = JS_ArraySpeciesCreate(ctx, obj, JS_NewInt32(ctx, 0));
+ if (JS_IsException(arr))
+ goto exception;
+ if (JS_FlattenIntoArray(ctx, arr, obj, sourceLen, 0, depthNum,
+ mapperFunction, thisArg) < 0)
+ goto exception;
+ JS_FreeValue(ctx, obj);
+ return arr;
+
+exception:
+ JS_FreeValue(ctx, obj);
+ JS_FreeValue(ctx, arr);
+ return JS_EXCEPTION;
+}
+
+/* Array sort */
+
+typedef struct ValueSlot {
+ JSValue val;
+ JSString *str;
+ int64_t pos;
+} ValueSlot;
+
+struct array_sort_context {
+ JSContext *ctx;
+ int exception;
+ int has_method;
+ JSValueConst method;
+};
+
+static int js_array_cmp_generic(const void *a, const void *b, void *opaque) {
+ struct array_sort_context *psc = opaque;
+ JSContext *ctx = psc->ctx;
+ JSValueConst argv[2];
+ JSValue res;
+ ValueSlot *ap = (ValueSlot *)(void *)a;
+ ValueSlot *bp = (ValueSlot *)(void *)b;
+ int cmp;
+
+ if (psc->exception)
+ return 0;
+
+ if (psc->has_method) {
+ /* custom sort function is specified as returning 0 for identical
+ * objects: avoid method call overhead.
+ */
+ if (!memcmp(&ap->val, &bp->val, sizeof(ap->val)))
+ goto cmp_same;
+ argv[0] = ap->val;
+ argv[1] = bp->val;
+ res = JS_Call(ctx, psc->method, JS_UNDEFINED, 2, argv);
+ if (JS_IsException(res))
+ goto exception;
+ if (JS_VALUE_GET_TAG(res) == JS_TAG_INT) {
+ int val = JS_VALUE_GET_INT(res);
+ cmp = (val > 0) - (val < 0);
+ } else {
+ double val;
+ if (JS_ToFloat64Free(ctx, &val, res) < 0)
+ goto exception;
+ cmp = (val > 0) - (val < 0);
+ }
+ } else {
+ /* Not supposed to bypass ToString even for identical objects as
+ * tested in test262/test/built-ins/Array/prototype/sort/bug_596_1.js
+ */
+ if (!ap->str) {
+ JSValue str = JS_ToString(ctx, ap->val);
+ if (JS_IsException(str))
+ goto exception;
+ ap->str = JS_VALUE_GET_STRING(str);
+ }
+ if (!bp->str) {
+ JSValue str = JS_ToString(ctx, bp->val);
+ if (JS_IsException(str))
+ goto exception;
+ bp->str = JS_VALUE_GET_STRING(str);
+ }
+ cmp = js_string_compare(ctx, ap->str, bp->str);
+ }
+ if (cmp != 0)
+ return cmp;
+cmp_same:
+ /* make sort stable: compare array offsets */
+ return (ap->pos > bp->pos) - (ap->pos < bp->pos);
+
+exception:
+ psc->exception = 1;
+ return 0;
+}
+
+static JSValue js_array_sort(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ struct array_sort_context asc = { ctx, 0, 0, argv[0] };
+ JSValue obj = JS_UNDEFINED;
+ ValueSlot *array = NULL;
+ size_t array_size = 0, pos = 0, n = 0;
+ int64_t i, len, undefined_count = 0;
+ int present;
+
+ if (!JS_IsUndefined(asc.method)) {
+ if (check_function(ctx, asc.method))
+ goto exception;
+ asc.has_method = 1;
+ }
+ obj = JS_ToObject(ctx, this_val);
+ if (js_get_length64(ctx, &len, obj))
+ goto exception;
+
+ /* XXX: should special case fast arrays */
+ for (i = 0; i < len; i++) {
+ if (pos >= array_size) {
+ size_t new_size, slack;
+ ValueSlot *new_array;
+ new_size = (array_size + (array_size >> 1) + 31) & ~15;
+ new_array = js_realloc2(ctx, array, new_size * sizeof(*array), &slack);
+ if (new_array == NULL)
+ goto exception;
+ new_size += slack / sizeof(*new_array);
+ array = new_array;
+ array_size = new_size;
+ }
+ present = JS_TryGetPropertyInt64(ctx, obj, i, &array[pos].val);
+ if (present < 0)
+ goto exception;
+ if (present == 0)
+ continue;
+ if (JS_IsUndefined(array[pos].val)) {
+ undefined_count++;
+ continue;
+ }
+ array[pos].str = NULL;
+ array[pos].pos = i;
+ pos++;
+ }
+ rqsort(array, pos, sizeof(*array), js_array_cmp_generic, &asc);
+ if (asc.exception)
+ goto exception;
+
+ /* XXX: should special case fast arrays */
+ while (n < pos) {
+ if (array[n].str)
+ JS_FreeValue(ctx, JS_MKPTR(JS_TAG_STRING, array[n].str));
+ if (array[n].pos == n) {
+ JS_FreeValue(ctx, array[n].val);
+ } else {
+ if (JS_SetPropertyInt64(ctx, obj, n, array[n].val) < 0) {
+ n++;
+ goto exception;
+ }
+ }
+ n++;
+ }
+ js_free(ctx, array);
+ for (i = n; undefined_count-- > 0; i++) {
+ if (JS_SetPropertyInt64(ctx, obj, i, JS_UNDEFINED) < 0)
+ goto fail;
+ }
+ for (; i < len; i++) {
+ if (JS_DeletePropertyInt64(ctx, obj, i, JS_PROP_THROW) < 0)
+ goto fail;
+ }
+ return obj;
+
+exception:
+ for (; n < pos; n++) {
+ JS_FreeValue(ctx, array[n].val);
+ if (array[n].str)
+ JS_FreeValue(ctx, JS_MKPTR(JS_TAG_STRING, array[n].str));
+ }
+ js_free(ctx, array);
+fail:
+ JS_FreeValue(ctx, obj);
+ return JS_EXCEPTION;
+}
+
+// Note: a.toSorted() is a.slice().sort() with the twist that a.slice()
+// leaves holes in sparse arrays intact whereas a.toSorted() replaces them
+// with undefined, thus in effect creating a dense array.
+// Does not use Array[@@species], always returns a base Array.
+static JSValue js_array_toSorted(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValue arr, obj, ret, *arrp, *pval;
+ JSObject *p;
+ int64_t i, len;
+ uint32_t count32;
+ int ok;
+
+ ok = JS_IsUndefined(argv[0]) || JS_IsFunction(ctx, argv[0]);
+ if (!ok)
+ return JS_ThrowTypeError(ctx, "not a function");
+
+ ret = JS_EXCEPTION;
+ arr = JS_UNDEFINED;
+ obj = JS_ToObject(ctx, this_val);
+ if (js_get_length64(ctx, &len, obj))
+ goto exception;
+
+ arr = js_allocate_fast_array(ctx, len);
+ if (JS_IsException(arr))
+ goto exception;
+
+ if (len > 0) {
+ p = JS_VALUE_GET_OBJ(arr);
+ i = 0;
+ pval = p->u.array.u.values;
+ if (js_get_fast_array(ctx, obj, &arrp, &count32) && count32 == len) {
+ for (; i < len; i++, pval++)
+ *pval = JS_DupValue(ctx, arrp[i]);
+ } else {
+ for (; i < len; i++, pval++) {
+ if (-1 == JS_TryGetPropertyInt64(ctx, obj, i, pval)) {
+ for (; i < len; i++, pval++)
+ *pval = JS_UNDEFINED;
+ goto exception;
+ }
+ }
+ }
+
+ if (JS_SetProperty(ctx, arr, JS_ATOM_length, JS_NewInt64(ctx, len)) < 0)
+ goto exception;
+ }
+
+ ret = js_array_sort(ctx, arr, argc, argv);
+ if (JS_IsException(ret))
+ goto exception;
+ JS_FreeValue(ctx, ret);
+
+ ret = arr;
+ arr = JS_UNDEFINED;
+
+exception:
+ JS_FreeValue(ctx, arr);
+ JS_FreeValue(ctx, obj);
+ return ret;
+}
+
+typedef struct JSArrayIteratorData {
+ JSValue obj;
+ JSIteratorKindEnum kind;
+ uint32_t idx;
+} JSArrayIteratorData;
+
+static void js_array_iterator_finalizer(JSRuntime *rt, JSValue val)
+{
+ JSObject *p = JS_VALUE_GET_OBJ(val);
+ JSArrayIteratorData *it = p->u.array_iterator_data;
+ if (it) {
+ JS_FreeValueRT(rt, it->obj);
+ js_free_rt(rt, it);
+ }
+}
+
+static void js_array_iterator_mark(JSRuntime *rt, JSValueConst val,
+ JS_MarkFunc *mark_func)
+{
+ JSObject *p = JS_VALUE_GET_OBJ(val);
+ JSArrayIteratorData *it = p->u.array_iterator_data;
+ if (it) {
+ JS_MarkValue(rt, it->obj, mark_func);
+ }
+}
+
+static JSValue js_create_array(JSContext *ctx, int len, JSValueConst *tab)
+{
+ JSValue obj;
+ int i;
+
+ obj = JS_NewArray(ctx);
+ if (JS_IsException(obj))
+ return JS_EXCEPTION;
+ for(i = 0; i < len; i++) {
+ if (JS_CreateDataPropertyUint32(ctx, obj, i, JS_DupValue(ctx, tab[i]), 0) < 0) {
+ JS_FreeValue(ctx, obj);
+ return JS_EXCEPTION;
+ }
+ }
+ return obj;
+}
+
+static JSValue js_create_array_iterator(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int magic)
+{
+ JSValue enum_obj, arr;
+ JSArrayIteratorData *it;
+ JSIteratorKindEnum kind;
+ int class_id;
+
+ kind = magic & 3;
+ if (magic & 4) {
+ /* string iterator case */
+ arr = JS_ToStringCheckObject(ctx, this_val);
+ class_id = JS_CLASS_STRING_ITERATOR;
+ } else {
+ arr = JS_ToObject(ctx, this_val);
+ class_id = JS_CLASS_ARRAY_ITERATOR;
+ }
+ if (JS_IsException(arr))
+ goto fail;
+ enum_obj = JS_NewObjectClass(ctx, class_id);
+ if (JS_IsException(enum_obj))
+ goto fail;
+ it = js_malloc(ctx, sizeof(*it));
+ if (!it)
+ goto fail1;
+ it->obj = arr;
+ it->kind = kind;
+ it->idx = 0;
+ JS_SetOpaque(enum_obj, it);
+ return enum_obj;
+ fail1:
+ JS_FreeValue(ctx, enum_obj);
+ fail:
+ JS_FreeValue(ctx, arr);
+ return JS_EXCEPTION;
+}
+
+static JSValue js_array_iterator_next(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv,
+ BOOL *pdone, int magic)
+{
+ JSArrayIteratorData *it;
+ uint32_t len, idx;
+ JSValue val, obj;
+ JSObject *p;
+
+ it = JS_GetOpaque2(ctx, this_val, JS_CLASS_ARRAY_ITERATOR);
+ if (!it)
+ goto fail1;
+ if (JS_IsUndefined(it->obj))
+ goto done;
+ p = JS_VALUE_GET_OBJ(it->obj);
+ if (p->class_id >= JS_CLASS_UINT8C_ARRAY &&
+ p->class_id <= JS_CLASS_FLOAT64_ARRAY) {
+ if (typed_array_is_detached(ctx, p)) {
+ JS_ThrowTypeErrorDetachedArrayBuffer(ctx);
+ goto fail1;
+ }
+ len = p->u.array.count;
+ } else {
+ if (js_get_length32(ctx, &len, it->obj)) {
+ fail1:
+ *pdone = FALSE;
+ return JS_EXCEPTION;
+ }
+ }
+ idx = it->idx;
+ if (idx >= len) {
+ JS_FreeValue(ctx, it->obj);
+ it->obj = JS_UNDEFINED;
+ done:
+ *pdone = TRUE;
+ return JS_UNDEFINED;
+ }
+ it->idx = idx + 1;
+ *pdone = FALSE;
+ if (it->kind == JS_ITERATOR_KIND_KEY) {
+ return JS_NewUint32(ctx, idx);
+ } else {
+ val = JS_GetPropertyUint32(ctx, it->obj, idx);
+ if (JS_IsException(val))
+ return JS_EXCEPTION;
+ if (it->kind == JS_ITERATOR_KIND_VALUE) {
+ return val;
+ } else {
+ JSValueConst args[2];
+ JSValue num;
+ num = JS_NewUint32(ctx, idx);
+ args[0] = num;
+ args[1] = val;
+ obj = js_create_array(ctx, 2, args);
+ JS_FreeValue(ctx, val);
+ JS_FreeValue(ctx, num);
+ return obj;
+ }
+ }
+}
+
+static JSValue js_iterator_proto_iterator(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ return JS_DupValue(ctx, this_val);
+}
+
+static const JSCFunctionListEntry js_iterator_proto_funcs[] = {
+ JS_CFUNC_DEF("[Symbol.iterator]", 0, js_iterator_proto_iterator ),
+};
+
+static const JSCFunctionListEntry js_array_proto_funcs[] = {
+ JS_CFUNC_DEF("at", 1, js_array_at ),
+ JS_CFUNC_DEF("with", 2, js_array_with ),
+ JS_CFUNC_DEF("concat", 1, js_array_concat ),
+ JS_CFUNC_MAGIC_DEF("every", 1, js_array_every, special_every ),
+ JS_CFUNC_MAGIC_DEF("some", 1, js_array_every, special_some ),
+ JS_CFUNC_MAGIC_DEF("forEach", 1, js_array_every, special_forEach ),
+ JS_CFUNC_MAGIC_DEF("map", 1, js_array_every, special_map ),
+ JS_CFUNC_MAGIC_DEF("filter", 1, js_array_every, special_filter ),
+ JS_CFUNC_MAGIC_DEF("reduce", 1, js_array_reduce, special_reduce ),
+ JS_CFUNC_MAGIC_DEF("reduceRight", 1, js_array_reduce, special_reduceRight ),
+ JS_CFUNC_DEF("fill", 1, js_array_fill ),
+ JS_CFUNC_MAGIC_DEF("find", 1, js_array_find, ArrayFind ),
+ JS_CFUNC_MAGIC_DEF("findIndex", 1, js_array_find, ArrayFindIndex ),
+ JS_CFUNC_MAGIC_DEF("findLast", 1, js_array_find, ArrayFindLast ),
+ JS_CFUNC_MAGIC_DEF("findLastIndex", 1, js_array_find, ArrayFindLastIndex ),
+ JS_CFUNC_DEF("indexOf", 1, js_array_indexOf ),
+ JS_CFUNC_DEF("lastIndexOf", 1, js_array_lastIndexOf ),
+ JS_CFUNC_DEF("includes", 1, js_array_includes ),
+ JS_CFUNC_MAGIC_DEF("join", 1, js_array_join, 0 ),
+ JS_CFUNC_DEF("toString", 0, js_array_toString ),
+ JS_CFUNC_MAGIC_DEF("toLocaleString", 0, js_array_join, 1 ),
+ JS_CFUNC_MAGIC_DEF("pop", 0, js_array_pop, 0 ),
+ JS_CFUNC_MAGIC_DEF("push", 1, js_array_push, 0 ),
+ JS_CFUNC_MAGIC_DEF("shift", 0, js_array_pop, 1 ),
+ JS_CFUNC_MAGIC_DEF("unshift", 1, js_array_push, 1 ),
+ JS_CFUNC_DEF("reverse", 0, js_array_reverse ),
+ JS_CFUNC_DEF("toReversed", 0, js_array_toReversed ),
+ JS_CFUNC_DEF("sort", 1, js_array_sort ),
+ JS_CFUNC_DEF("toSorted", 1, js_array_toSorted ),
+ JS_CFUNC_MAGIC_DEF("slice", 2, js_array_slice, 0 ),
+ JS_CFUNC_MAGIC_DEF("splice", 2, js_array_slice, 1 ),
+ JS_CFUNC_DEF("toSpliced", 2, js_array_toSpliced ),
+ JS_CFUNC_DEF("copyWithin", 2, js_array_copyWithin ),
+ JS_CFUNC_MAGIC_DEF("flatMap", 1, js_array_flatten, 1 ),
+ JS_CFUNC_MAGIC_DEF("flat", 0, js_array_flatten, 0 ),
+ JS_CFUNC_MAGIC_DEF("values", 0, js_create_array_iterator, JS_ITERATOR_KIND_VALUE ),
+ JS_ALIAS_DEF("[Symbol.iterator]", "values" ),
+ JS_CFUNC_MAGIC_DEF("keys", 0, js_create_array_iterator, JS_ITERATOR_KIND_KEY ),
+ JS_CFUNC_MAGIC_DEF("entries", 0, js_create_array_iterator, JS_ITERATOR_KIND_KEY_AND_VALUE ),
+};
+
+static const JSCFunctionListEntry js_array_iterator_proto_funcs[] = {
+ JS_ITERATOR_NEXT_DEF("next", 0, js_array_iterator_next, 0 ),
+ JS_PROP_STRING_DEF("[Symbol.toStringTag]", "Array Iterator", JS_PROP_CONFIGURABLE ),
+};
+
+/* Number */
+
+static JSValue js_number_constructor(JSContext *ctx, JSValueConst new_target,
+ int argc, JSValueConst *argv)
+{
+ JSValue val, obj;
+ if (argc == 0) {
+ val = JS_NewInt32(ctx, 0);
+ } else {
+ val = JS_ToNumeric(ctx, argv[0]);
+ if (JS_IsException(val))
+ return val;
+ switch(JS_VALUE_GET_TAG(val)) {
+ case JS_TAG_BIG_INT:
+#ifdef CONFIG_BIGNUM
+ case JS_TAG_BIG_FLOAT:
+#endif
+ {
+ JSBigFloat *p = JS_VALUE_GET_PTR(val);
+ double d;
+ bf_get_float64(&p->num, &d, BF_RNDN);
+ JS_FreeValue(ctx, val);
+ val = __JS_NewFloat64(ctx, d);
+ }
+ break;
+#ifdef CONFIG_BIGNUM
+ case JS_TAG_BIG_DECIMAL:
+ val = JS_ToStringFree(ctx, val);
+ if (JS_IsException(val))
+ return val;
+ val = JS_ToNumberFree(ctx, val);
+ if (JS_IsException(val))
+ return val;
+ break;
+#endif
+ default:
+ break;
+ }
+ }
+ if (!JS_IsUndefined(new_target)) {
+ obj = js_create_from_ctor(ctx, new_target, JS_CLASS_NUMBER);
+ if (!JS_IsException(obj))
+ JS_SetObjectData(ctx, obj, val);
+ return obj;
+ } else {
+ return val;
+ }
+}
+
+#if 0
+static JSValue js_number___toInteger(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ return JS_ToIntegerFree(ctx, JS_DupValue(ctx, argv[0]));
+}
+
+static JSValue js_number___toLength(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ int64_t v;
+ if (JS_ToLengthFree(ctx, &v, JS_DupValue(ctx, argv[0])))
+ return JS_EXCEPTION;
+ return JS_NewInt64(ctx, v);
+}
+#endif
+
+static JSValue js_number_isNaN(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ if (!JS_IsNumber(argv[0]))
+ return JS_FALSE;
+ return js_global_isNaN(ctx, this_val, argc, argv);
+}
+
+static JSValue js_number_isFinite(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ if (!JS_IsNumber(argv[0]))
+ return JS_FALSE;
+ return js_global_isFinite(ctx, this_val, argc, argv);
+}
+
+static JSValue js_number_isInteger(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ int ret;
+ ret = JS_NumberIsInteger(ctx, argv[0]);
+ if (ret < 0)
+ return JS_EXCEPTION;
+ else
+ return JS_NewBool(ctx, ret);
+}
+
+static JSValue js_number_isSafeInteger(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ double d;
+ if (!JS_IsNumber(argv[0]))
+ return JS_FALSE;
+ if (unlikely(JS_ToFloat64(ctx, &d, argv[0])))
+ return JS_EXCEPTION;
+ return JS_NewBool(ctx, is_safe_integer(d));
+}
+
+static const JSCFunctionListEntry js_number_funcs[] = {
+ /* global ParseInt and parseFloat should be defined already or delayed */
+ JS_ALIAS_BASE_DEF("parseInt", "parseInt", 0 ),
+ JS_ALIAS_BASE_DEF("parseFloat", "parseFloat", 0 ),
+ JS_CFUNC_DEF("isNaN", 1, js_number_isNaN ),
+ JS_CFUNC_DEF("isFinite", 1, js_number_isFinite ),
+ JS_CFUNC_DEF("isInteger", 1, js_number_isInteger ),
+ JS_CFUNC_DEF("isSafeInteger", 1, js_number_isSafeInteger ),
+ JS_PROP_DOUBLE_DEF("MAX_VALUE", 1.7976931348623157e+308, 0 ),
+ JS_PROP_DOUBLE_DEF("MIN_VALUE", 5e-324, 0 ),
+ JS_PROP_DOUBLE_DEF("NaN", NAN, 0 ),
+ JS_PROP_DOUBLE_DEF("NEGATIVE_INFINITY", -INFINITY, 0 ),
+ JS_PROP_DOUBLE_DEF("POSITIVE_INFINITY", INFINITY, 0 ),
+ JS_PROP_DOUBLE_DEF("EPSILON", 2.220446049250313e-16, 0 ), /* ES6 */
+ JS_PROP_DOUBLE_DEF("MAX_SAFE_INTEGER", 9007199254740991.0, 0 ), /* ES6 */
+ JS_PROP_DOUBLE_DEF("MIN_SAFE_INTEGER", -9007199254740991.0, 0 ), /* ES6 */
+ //JS_CFUNC_DEF("__toInteger", 1, js_number___toInteger ),
+ //JS_CFUNC_DEF("__toLength", 1, js_number___toLength ),
+};
+
+static JSValue js_thisNumberValue(JSContext *ctx, JSValueConst this_val)
+{
+ if (JS_IsNumber(this_val))
+ return JS_DupValue(ctx, this_val);
+
+ if (JS_VALUE_GET_TAG(this_val) == JS_TAG_OBJECT) {
+ JSObject *p = JS_VALUE_GET_OBJ(this_val);
+ if (p->class_id == JS_CLASS_NUMBER) {
+ if (JS_IsNumber(p->u.object_data))
+ return JS_DupValue(ctx, p->u.object_data);
+ }
+ }
+ return JS_ThrowTypeError(ctx, "not a number");
+}
+
+static JSValue js_number_valueOf(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ return js_thisNumberValue(ctx, this_val);
+}
+
+static int js_get_radix(JSContext *ctx, JSValueConst val)
+{
+ int radix;
+ if (JS_ToInt32Sat(ctx, &radix, val))
+ return -1;
+ if (radix < 2 || radix > 36) {
+ JS_ThrowRangeError(ctx, "radix must be between 2 and 36");
+ return -1;
+ }
+ return radix;
+}
+
+static JSValue js_number_toString(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int magic)
+{
+ JSValue val;
+ int base;
+ double d;
+
+ val = js_thisNumberValue(ctx, this_val);
+ if (JS_IsException(val))
+ return val;
+ if (magic || JS_IsUndefined(argv[0])) {
+ base = 10;
+ } else {
+ base = js_get_radix(ctx, argv[0]);
+ if (base < 0)
+ goto fail;
+ }
+ if (JS_VALUE_GET_TAG(val) == JS_TAG_INT) {
+ char buf1[70], *ptr;
+ ptr = i64toa(buf1 + sizeof(buf1), JS_VALUE_GET_INT(val), base);
+ return JS_NewString(ctx, ptr);
+ }
+ if (JS_ToFloat64Free(ctx, &d, val))
+ return JS_EXCEPTION;
+ if (base != 10 && isfinite(d)) {
+ return js_dtoa_radix(ctx, d, base);
+ }
+ return js_dtoa(ctx, d, base, 0, JS_DTOA_VAR_FORMAT);
+ fail:
+ JS_FreeValue(ctx, val);
+ return JS_EXCEPTION;
+}
+
+static JSValue js_number_toFixed(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValue val;
+ int f;
+ double d;
+
+ val = js_thisNumberValue(ctx, this_val);
+ if (JS_IsException(val))
+ return val;
+ if (JS_ToFloat64Free(ctx, &d, val))
+ return JS_EXCEPTION;
+ if (JS_ToInt32Sat(ctx, &f, argv[0]))
+ return JS_EXCEPTION;
+ if (f < 0 || f > 100)
+ return JS_ThrowRangeError(ctx, "invalid number of digits");
+ if (fabs(d) >= 1e21) {
+ return JS_ToStringFree(ctx, __JS_NewFloat64(ctx, d));
+ } else {
+ return js_dtoa(ctx, d, 10, f, JS_DTOA_FRAC_FORMAT);
+ }
+}
+
+static JSValue js_number_toExponential(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValue val;
+ int f, flags;
+ double d;
+
+ val = js_thisNumberValue(ctx, this_val);
+ if (JS_IsException(val))
+ return val;
+ if (JS_ToFloat64Free(ctx, &d, val))
+ return JS_EXCEPTION;
+ if (JS_ToInt32Sat(ctx, &f, argv[0]))
+ return JS_EXCEPTION;
+ if (!isfinite(d)) {
+ return JS_ToStringFree(ctx, __JS_NewFloat64(ctx, d));
+ }
+ if (JS_IsUndefined(argv[0])) {
+ flags = 0;
+ f = 0;
+ } else {
+ if (f < 0 || f > 100)
+ return JS_ThrowRangeError(ctx, "invalid number of digits");
+ f++;
+ flags = JS_DTOA_FIXED_FORMAT;
+ }
+ return js_dtoa(ctx, d, 10, f, flags | JS_DTOA_FORCE_EXP);
+}
+
+static JSValue js_number_toPrecision(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValue val;
+ int p;
+ double d;
+
+ val = js_thisNumberValue(ctx, this_val);
+ if (JS_IsException(val))
+ return val;
+ if (JS_ToFloat64Free(ctx, &d, val))
+ return JS_EXCEPTION;
+ if (JS_IsUndefined(argv[0]))
+ goto to_string;
+ if (JS_ToInt32Sat(ctx, &p, argv[0]))
+ return JS_EXCEPTION;
+ if (!isfinite(d)) {
+ to_string:
+ return JS_ToStringFree(ctx, __JS_NewFloat64(ctx, d));
+ }
+ if (p < 1 || p > 100)
+ return JS_ThrowRangeError(ctx, "invalid number of digits");
+ return js_dtoa(ctx, d, 10, p, JS_DTOA_FIXED_FORMAT);
+}
+
+static const JSCFunctionListEntry js_number_proto_funcs[] = {
+ JS_CFUNC_DEF("toExponential", 1, js_number_toExponential ),
+ JS_CFUNC_DEF("toFixed", 1, js_number_toFixed ),
+ JS_CFUNC_DEF("toPrecision", 1, js_number_toPrecision ),
+ JS_CFUNC_MAGIC_DEF("toString", 1, js_number_toString, 0 ),
+ JS_CFUNC_MAGIC_DEF("toLocaleString", 0, js_number_toString, 1 ),
+ JS_CFUNC_DEF("valueOf", 0, js_number_valueOf ),
+};
+
+static JSValue js_parseInt(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ const char *str, *p;
+ int radix, flags;
+ JSValue ret;
+
+ str = JS_ToCString(ctx, argv[0]);
+ if (!str)
+ return JS_EXCEPTION;
+ if (JS_ToInt32(ctx, &radix, argv[1])) {
+ JS_FreeCString(ctx, str);
+ return JS_EXCEPTION;
+ }
+ if (radix != 0 && (radix < 2 || radix > 36)) {
+ ret = JS_NAN;
+ } else {
+ p = str;
+ p += skip_spaces(p);
+ flags = ATOD_INT_ONLY | ATOD_ACCEPT_PREFIX_AFTER_SIGN;
+ ret = js_atof(ctx, p, NULL, radix, flags);
+ }
+ JS_FreeCString(ctx, str);
+ return ret;
+}
+
+static JSValue js_parseFloat(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ const char *str, *p;
+ JSValue ret;
+
+ str = JS_ToCString(ctx, argv[0]);
+ if (!str)
+ return JS_EXCEPTION;
+ p = str;
+ p += skip_spaces(p);
+ ret = js_atof(ctx, p, NULL, 10, 0);
+ JS_FreeCString(ctx, str);
+ return ret;
+}
+
+/* Boolean */
+static JSValue js_boolean_constructor(JSContext *ctx, JSValueConst new_target,
+ int argc, JSValueConst *argv)
+{
+ JSValue val, obj;
+ val = JS_NewBool(ctx, JS_ToBool(ctx, argv[0]));
+ if (!JS_IsUndefined(new_target)) {
+ obj = js_create_from_ctor(ctx, new_target, JS_CLASS_BOOLEAN);
+ if (!JS_IsException(obj))
+ JS_SetObjectData(ctx, obj, val);
+ return obj;
+ } else {
+ return val;
+ }
+}
+
+static JSValue js_thisBooleanValue(JSContext *ctx, JSValueConst this_val)
+{
+ if (JS_VALUE_GET_TAG(this_val) == JS_TAG_BOOL)
+ return JS_DupValue(ctx, this_val);
+
+ if (JS_VALUE_GET_TAG(this_val) == JS_TAG_OBJECT) {
+ JSObject *p = JS_VALUE_GET_OBJ(this_val);
+ if (p->class_id == JS_CLASS_BOOLEAN) {
+ if (JS_VALUE_GET_TAG(p->u.object_data) == JS_TAG_BOOL)
+ return p->u.object_data;
+ }
+ }
+ return JS_ThrowTypeError(ctx, "not a boolean");
+}
+
+static JSValue js_boolean_toString(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValue val = js_thisBooleanValue(ctx, this_val);
+ if (JS_IsException(val))
+ return val;
+ return JS_AtomToString(ctx, JS_VALUE_GET_BOOL(val) ?
+ JS_ATOM_true : JS_ATOM_false);
+}
+
+static JSValue js_boolean_valueOf(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ return js_thisBooleanValue(ctx, this_val);
+}
+
+static const JSCFunctionListEntry js_boolean_proto_funcs[] = {
+ JS_CFUNC_DEF("toString", 0, js_boolean_toString ),
+ JS_CFUNC_DEF("valueOf", 0, js_boolean_valueOf ),
+};
+
+/* String */
+
+static int js_string_get_own_property(JSContext *ctx,
+ JSPropertyDescriptor *desc,
+ JSValueConst obj, JSAtom prop)
+{
+ JSObject *p;
+ JSString *p1;
+ uint32_t idx, ch;
+
+ /* This is a class exotic method: obj class_id is JS_CLASS_STRING */
+ if (__JS_AtomIsTaggedInt(prop)) {
+ p = JS_VALUE_GET_OBJ(obj);
+ if (JS_VALUE_GET_TAG(p->u.object_data) == JS_TAG_STRING) {
+ p1 = JS_VALUE_GET_STRING(p->u.object_data);
+ idx = __JS_AtomToUInt32(prop);
+ if (idx < p1->len) {
+ if (desc) {
+ ch = string_get(p1, idx);
+ desc->flags = JS_PROP_ENUMERABLE;
+ desc->value = js_new_string_char(ctx, ch);
+ desc->getter = JS_UNDEFINED;
+ desc->setter = JS_UNDEFINED;
+ }
+ return TRUE;
+ }
+ }
+ }
+ return FALSE;
+}
+
+static int js_string_define_own_property(JSContext *ctx,
+ JSValueConst this_obj,
+ JSAtom prop, JSValueConst val,
+ JSValueConst getter,
+ JSValueConst setter, int flags)
+{
+ uint32_t idx;
+ JSObject *p;
+ JSString *p1, *p2;
+
+ if (__JS_AtomIsTaggedInt(prop)) {
+ idx = __JS_AtomToUInt32(prop);
+ p = JS_VALUE_GET_OBJ(this_obj);
+ if (JS_VALUE_GET_TAG(p->u.object_data) != JS_TAG_STRING)
+ goto def;
+ p1 = JS_VALUE_GET_STRING(p->u.object_data);
+ if (idx >= p1->len)
+ goto def;
+ if (!check_define_prop_flags(JS_PROP_ENUMERABLE, flags))
+ goto fail;
+ /* check that the same value is configured */
+ if (flags & JS_PROP_HAS_VALUE) {
+ if (JS_VALUE_GET_TAG(val) != JS_TAG_STRING)
+ goto fail;
+ p2 = JS_VALUE_GET_STRING(val);
+ if (p2->len != 1)
+ goto fail;
+ if (string_get(p1, idx) != string_get(p2, 0)) {
+ fail:
+ return JS_ThrowTypeErrorOrFalse(ctx, flags, "property is not configurable");
+ }
+ }
+ return TRUE;
+ } else {
+ def:
+ return JS_DefineProperty(ctx, this_obj, prop, val, getter, setter,
+ flags | JS_PROP_NO_EXOTIC);
+ }
+}
+
+static int js_string_delete_property(JSContext *ctx,
+ JSValueConst obj, JSAtom prop)
+{
+ uint32_t idx;
+
+ if (__JS_AtomIsTaggedInt(prop)) {
+ idx = __JS_AtomToUInt32(prop);
+ if (idx < js_string_obj_get_length(ctx, obj)) {
+ return FALSE;
+ }
+ }
+ return TRUE;
+}
+
+static const JSClassExoticMethods js_string_exotic_methods = {
+ .get_own_property = js_string_get_own_property,
+ .define_own_property = js_string_define_own_property,
+ .delete_property = js_string_delete_property,
+};
+
+static JSValue js_string_constructor(JSContext *ctx, JSValueConst new_target,
+ int argc, JSValueConst *argv)
+{
+ JSValue val, obj;
+ if (argc == 0) {
+ val = JS_AtomToString(ctx, JS_ATOM_empty_string);
+ } else {
+ if (JS_IsUndefined(new_target) && JS_IsSymbol(argv[0])) {
+ JSAtomStruct *p = JS_VALUE_GET_PTR(argv[0]);
+ val = JS_ConcatString3(ctx, "Symbol(", JS_AtomToString(ctx, js_get_atom_index(ctx->rt, p)), ")");
+ } else {
+ val = JS_ToString(ctx, argv[0]);
+ }
+ if (JS_IsException(val))
+ return val;
+ }
+ if (!JS_IsUndefined(new_target)) {
+ JSString *p1 = JS_VALUE_GET_STRING(val);
+
+ obj = js_create_from_ctor(ctx, new_target, JS_CLASS_STRING);
+ if (!JS_IsException(obj)) {
+ JS_SetObjectData(ctx, obj, val);
+ JS_DefinePropertyValue(ctx, obj, JS_ATOM_length, JS_NewInt32(ctx, p1->len), 0);
+ }
+ return obj;
+ } else {
+ return val;
+ }
+}
+
+static JSValue js_thisStringValue(JSContext *ctx, JSValueConst this_val)
+{
+ if (JS_VALUE_GET_TAG(this_val) == JS_TAG_STRING)
+ return JS_DupValue(ctx, this_val);
+
+ if (JS_VALUE_GET_TAG(this_val) == JS_TAG_OBJECT) {
+ JSObject *p = JS_VALUE_GET_OBJ(this_val);
+ if (p->class_id == JS_CLASS_STRING) {
+ if (JS_VALUE_GET_TAG(p->u.object_data) == JS_TAG_STRING)
+ return JS_DupValue(ctx, p->u.object_data);
+ }
+ }
+ return JS_ThrowTypeError(ctx, "not a string");
+}
+
+static JSValue js_string_fromCharCode(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ int i;
+ StringBuffer b_s, *b = &b_s;
+
+ string_buffer_init(ctx, b, argc);
+
+ for(i = 0; i < argc; i++) {
+ int32_t c;
+ if (JS_ToInt32(ctx, &c, argv[i]) || string_buffer_putc16(b, c & 0xffff)) {
+ string_buffer_free(b);
+ return JS_EXCEPTION;
+ }
+ }
+ return string_buffer_end(b);
+}
+
+static JSValue js_string_fromCodePoint(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ double d;
+ int i, c;
+ StringBuffer b_s, *b = &b_s;
+
+ /* XXX: could pre-compute string length if all arguments are JS_TAG_INT */
+
+ if (string_buffer_init(ctx, b, argc))
+ goto fail;
+ for(i = 0; i < argc; i++) {
+ if (JS_VALUE_GET_TAG(argv[i]) == JS_TAG_INT) {
+ c = JS_VALUE_GET_INT(argv[i]);
+ if (c < 0 || c > 0x10ffff)
+ goto range_error;
+ } else {
+ if (JS_ToFloat64(ctx, &d, argv[i]))
+ goto fail;
+ if (isnan(d) || d < 0 || d > 0x10ffff || (c = (int)d) != d)
+ goto range_error;
+ }
+ if (string_buffer_putc(b, c))
+ goto fail;
+ }
+ return string_buffer_end(b);
+
+ range_error:
+ JS_ThrowRangeError(ctx, "invalid code point");
+ fail:
+ string_buffer_free(b);
+ return JS_EXCEPTION;
+}
+
+static JSValue js_string_raw(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ // raw(temp,...a)
+ JSValue cooked, val, raw;
+ StringBuffer b_s, *b = &b_s;
+ int64_t i, n;
+
+ string_buffer_init(ctx, b, 0);
+ raw = JS_UNDEFINED;
+ cooked = JS_ToObject(ctx, argv[0]);
+ if (JS_IsException(cooked))
+ goto exception;
+ raw = JS_ToObjectFree(ctx, JS_GetProperty(ctx, cooked, JS_ATOM_raw));
+ if (JS_IsException(raw))
+ goto exception;
+ if (js_get_length64(ctx, &n, raw) < 0)
+ goto exception;
+
+ for (i = 0; i < n; i++) {
+ val = JS_ToStringFree(ctx, JS_GetPropertyInt64(ctx, raw, i));
+ if (JS_IsException(val))
+ goto exception;
+ string_buffer_concat_value_free(b, val);
+ if (i < n - 1 && i + 1 < argc) {
+ if (string_buffer_concat_value(b, argv[i + 1]))
+ goto exception;
+ }
+ }
+ JS_FreeValue(ctx, cooked);
+ JS_FreeValue(ctx, raw);
+ return string_buffer_end(b);
+
+exception:
+ JS_FreeValue(ctx, cooked);
+ JS_FreeValue(ctx, raw);
+ string_buffer_free(b);
+ return JS_EXCEPTION;
+}
+
+/* only used in test262 */
+JSValue js_string_codePointRange(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ uint32_t start, end, i, n;
+ StringBuffer b_s, *b = &b_s;
+
+ if (JS_ToUint32(ctx, &start, argv[0]) ||
+ JS_ToUint32(ctx, &end, argv[1]))
+ return JS_EXCEPTION;
+ end = min_uint32(end, 0x10ffff + 1);
+
+ if (start > end) {
+ start = end;
+ }
+ n = end - start;
+ if (end > 0x10000) {
+ n += end - max_uint32(start, 0x10000);
+ }
+ if (string_buffer_init2(ctx, b, n, end >= 0x100))
+ return JS_EXCEPTION;
+ for(i = start; i < end; i++) {
+ string_buffer_putc(b, i);
+ }
+ return string_buffer_end(b);
+}
+
+#if 0
+static JSValue js_string___isSpace(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ int c;
+ if (JS_ToInt32(ctx, &c, argv[0]))
+ return JS_EXCEPTION;
+ return JS_NewBool(ctx, lre_is_space(c));
+}
+#endif
+
+static JSValue js_string_charCodeAt(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValue val, ret;
+ JSString *p;
+ int idx, c;
+
+ val = JS_ToStringCheckObject(ctx, this_val);
+ if (JS_IsException(val))
+ return val;
+ p = JS_VALUE_GET_STRING(val);
+ if (JS_ToInt32Sat(ctx, &idx, argv[0])) {
+ JS_FreeValue(ctx, val);
+ return JS_EXCEPTION;
+ }
+ if (idx < 0 || idx >= p->len) {
+ ret = JS_NAN;
+ } else {
+ c = string_get(p, idx);
+ ret = JS_NewInt32(ctx, c);
+ }
+ JS_FreeValue(ctx, val);
+ return ret;
+}
+
+static JSValue js_string_charAt(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int is_at)
+{
+ JSValue val, ret;
+ JSString *p;
+ int idx, c;
+
+ val = JS_ToStringCheckObject(ctx, this_val);
+ if (JS_IsException(val))
+ return val;
+ p = JS_VALUE_GET_STRING(val);
+ if (JS_ToInt32Sat(ctx, &idx, argv[0])) {
+ JS_FreeValue(ctx, val);
+ return JS_EXCEPTION;
+ }
+ if (idx < 0 && is_at)
+ idx += p->len;
+ if (idx < 0 || idx >= p->len) {
+ if (is_at)
+ ret = JS_UNDEFINED;
+ else
+ ret = js_new_string8(ctx, NULL, 0);
+ } else {
+ c = string_get(p, idx);
+ ret = js_new_string_char(ctx, c);
+ }
+ JS_FreeValue(ctx, val);
+ return ret;
+}
+
+static JSValue js_string_codePointAt(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValue val, ret;
+ JSString *p;
+ int idx, c;
+
+ val = JS_ToStringCheckObject(ctx, this_val);
+ if (JS_IsException(val))
+ return val;
+ p = JS_VALUE_GET_STRING(val);
+ if (JS_ToInt32Sat(ctx, &idx, argv[0])) {
+ JS_FreeValue(ctx, val);
+ return JS_EXCEPTION;
+ }
+ if (idx < 0 || idx >= p->len) {
+ ret = JS_UNDEFINED;
+ } else {
+ c = string_getc(p, &idx);
+ ret = JS_NewInt32(ctx, c);
+ }
+ JS_FreeValue(ctx, val);
+ return ret;
+}
+
+static JSValue js_string_concat(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValue r;
+ int i;
+
+ /* XXX: Use more efficient method */
+ /* XXX: This method is OK if r has a single refcount */
+ /* XXX: should use string_buffer? */
+ r = JS_ToStringCheckObject(ctx, this_val);
+ for (i = 0; i < argc; i++) {
+ if (JS_IsException(r))
+ break;
+ r = JS_ConcatString(ctx, r, JS_DupValue(ctx, argv[i]));
+ }
+ return r;
+}
+
+static int string_cmp(JSString *p1, JSString *p2, int x1, int x2, int len)
+{
+ int i, c1, c2;
+ for (i = 0; i < len; i++) {
+ if ((c1 = string_get(p1, x1 + i)) != (c2 = string_get(p2, x2 + i)))
+ return c1 - c2;
+ }
+ return 0;
+}
+
+static int string_indexof_char(JSString *p, int c, int from)
+{
+ /* assuming 0 <= from <= p->len */
+ int i, len = p->len;
+ if (p->is_wide_char) {
+ for (i = from; i < len; i++) {
+ if (p->u.str16[i] == c)
+ return i;
+ }
+ } else {
+ if ((c & ~0xff) == 0) {
+ for (i = from; i < len; i++) {
+ if (p->u.str8[i] == (uint8_t)c)
+ return i;
+ }
+ }
+ }
+ return -1;
+}
+
+static int string_indexof(JSString *p1, JSString *p2, int from)
+{
+ /* assuming 0 <= from <= p1->len */
+ int c, i, j, len1 = p1->len, len2 = p2->len;
+ if (len2 == 0)
+ return from;
+ for (i = from, c = string_get(p2, 0); i + len2 <= len1; i = j + 1) {
+ j = string_indexof_char(p1, c, i);
+ if (j < 0 || j + len2 > len1)
+ break;
+ if (!string_cmp(p1, p2, j + 1, 1, len2 - 1))
+ return j;
+ }
+ return -1;
+}
+
+static int64_t string_advance_index(JSString *p, int64_t index, BOOL unicode)
+{
+ if (!unicode || index >= p->len || !p->is_wide_char) {
+ index++;
+ } else {
+ int index32 = (int)index;
+ string_getc(p, &index32);
+ index = index32;
+ }
+ return index;
+}
+
+/* return the position of the first invalid character in the string or
+ -1 if none */
+static int js_string_find_invalid_codepoint(JSString *p)
+{
+ int i;
+ if (!p->is_wide_char)
+ return -1;
+ for(i = 0; i < p->len; i++) {
+ uint32_t c = p->u.str16[i];
+ if (is_surrogate(c)) {
+ if (is_hi_surrogate(c) && (i + 1) < p->len
+ && is_lo_surrogate(p->u.str16[i + 1])) {
+ i++;
+ } else {
+ return i;
+ }
+ }
+ }
+ return -1;
+}
+
+static JSValue js_string_isWellFormed(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValue str;
+ JSString *p;
+ BOOL ret;
+
+ str = JS_ToStringCheckObject(ctx, this_val);
+ if (JS_IsException(str))
+ return JS_EXCEPTION;
+ p = JS_VALUE_GET_STRING(str);
+ ret = (js_string_find_invalid_codepoint(p) < 0);
+ JS_FreeValue(ctx, str);
+ return JS_NewBool(ctx, ret);
+}
+
+static JSValue js_string_toWellFormed(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValue str, ret;
+ JSString *p;
+ int i;
+
+ str = JS_ToStringCheckObject(ctx, this_val);
+ if (JS_IsException(str))
+ return JS_EXCEPTION;
+
+ p = JS_VALUE_GET_STRING(str);
+ /* avoid reallocating the string if it is well-formed */
+ i = js_string_find_invalid_codepoint(p);
+ if (i < 0)
+ return str;
+
+ ret = js_new_string16(ctx, p->u.str16, p->len);
+ JS_FreeValue(ctx, str);
+ if (JS_IsException(ret))
+ return JS_EXCEPTION;
+
+ p = JS_VALUE_GET_STRING(ret);
+ for (; i < p->len; i++) {
+ uint32_t c = p->u.str16[i];
+ if (is_surrogate(c)) {
+ if (is_hi_surrogate(c) && (i + 1) < p->len
+ && is_lo_surrogate(p->u.str16[i + 1])) {
+ i++;
+ } else {
+ p->u.str16[i] = 0xFFFD;
+ }
+ }
+ }
+ return ret;
+}
+
+static JSValue js_string_indexOf(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int lastIndexOf)
+{
+ JSValue str, v;
+ int i, len, v_len, pos, start, stop, ret, inc;
+ JSString *p;
+ JSString *p1;
+
+ str = JS_ToStringCheckObject(ctx, this_val);
+ if (JS_IsException(str))
+ return str;
+ v = JS_ToString(ctx, argv[0]);
+ if (JS_IsException(v))
+ goto fail;
+ p = JS_VALUE_GET_STRING(str);
+ p1 = JS_VALUE_GET_STRING(v);
+ len = p->len;
+ v_len = p1->len;
+ if (lastIndexOf) {
+ pos = len - v_len;
+ if (argc > 1) {
+ double d;
+ if (JS_ToFloat64(ctx, &d, argv[1]))
+ goto fail;
+ if (!isnan(d)) {
+ if (d <= 0)
+ pos = 0;
+ else if (d < pos)
+ pos = d;
+ }
+ }
+ start = pos;
+ stop = 0;
+ inc = -1;
+ } else {
+ pos = 0;
+ if (argc > 1) {
+ if (JS_ToInt32Clamp(ctx, &pos, argv[1], 0, len, 0))
+ goto fail;
+ }
+ start = pos;
+ stop = len - v_len;
+ inc = 1;
+ }
+ ret = -1;
+ if (len >= v_len && inc * (stop - start) >= 0) {
+ for (i = start;; i += inc) {
+ if (!string_cmp(p, p1, i, 0, v_len)) {
+ ret = i;
+ break;
+ }
+ if (i == stop)
+ break;
+ }
+ }
+ JS_FreeValue(ctx, str);
+ JS_FreeValue(ctx, v);
+ return JS_NewInt32(ctx, ret);
+
+fail:
+ JS_FreeValue(ctx, str);
+ JS_FreeValue(ctx, v);
+ return JS_EXCEPTION;
+}
+
+/* return < 0 if exception or TRUE/FALSE */
+static int js_is_regexp(JSContext *ctx, JSValueConst obj);
+
+static JSValue js_string_includes(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int magic)
+{
+ JSValue str, v = JS_UNDEFINED;
+ int i, len, v_len, pos, start, stop, ret;
+ JSString *p;
+ JSString *p1;
+
+ str = JS_ToStringCheckObject(ctx, this_val);
+ if (JS_IsException(str))
+ return str;
+ ret = js_is_regexp(ctx, argv[0]);
+ if (ret) {
+ if (ret > 0)
+ JS_ThrowTypeError(ctx, "regexp not supported");
+ goto fail;
+ }
+ v = JS_ToString(ctx, argv[0]);
+ if (JS_IsException(v))
+ goto fail;
+ p = JS_VALUE_GET_STRING(str);
+ p1 = JS_VALUE_GET_STRING(v);
+ len = p->len;
+ v_len = p1->len;
+ pos = (magic == 2) ? len : 0;
+ if (argc > 1 && !JS_IsUndefined(argv[1])) {
+ if (JS_ToInt32Clamp(ctx, &pos, argv[1], 0, len, 0))
+ goto fail;
+ }
+ len -= v_len;
+ ret = 0;
+ if (magic == 0) {
+ start = pos;
+ stop = len;
+ } else {
+ if (magic == 1) {
+ if (pos > len)
+ goto done;
+ } else {
+ pos -= v_len;
+ }
+ start = stop = pos;
+ }
+ if (start >= 0 && start <= stop) {
+ for (i = start;; i++) {
+ if (!string_cmp(p, p1, i, 0, v_len)) {
+ ret = 1;
+ break;
+ }
+ if (i == stop)
+ break;
+ }
+ }
+ done:
+ JS_FreeValue(ctx, str);
+ JS_FreeValue(ctx, v);
+ return JS_NewBool(ctx, ret);
+
+fail:
+ JS_FreeValue(ctx, str);
+ JS_FreeValue(ctx, v);
+ return JS_EXCEPTION;
+}
+
+static int check_regexp_g_flag(JSContext *ctx, JSValueConst regexp)
+{
+ int ret;
+ JSValue flags;
+
+ ret = js_is_regexp(ctx, regexp);
+ if (ret < 0)
+ return -1;
+ if (ret) {
+ flags = JS_GetProperty(ctx, regexp, JS_ATOM_flags);
+ if (JS_IsException(flags))
+ return -1;
+ if (JS_IsUndefined(flags) || JS_IsNull(flags)) {
+ JS_ThrowTypeError(ctx, "cannot convert to object");
+ return -1;
+ }
+ flags = JS_ToStringFree(ctx, flags);
+ if (JS_IsException(flags))
+ return -1;
+ ret = string_indexof_char(JS_VALUE_GET_STRING(flags), 'g', 0);
+ JS_FreeValue(ctx, flags);
+ if (ret < 0) {
+ JS_ThrowTypeError(ctx, "regexp must have the 'g' flag");
+ return -1;
+ }
+ }
+ return 0;
+}
+
+static JSValue js_string_match(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int atom)
+{
+ // match(rx), search(rx), matchAll(rx)
+ // atom is JS_ATOM_Symbol_match, JS_ATOM_Symbol_search, or JS_ATOM_Symbol_matchAll
+ JSValueConst O = this_val, regexp = argv[0], args[2];
+ JSValue matcher, S, rx, result, str;
+ int args_len;
+
+ if (JS_IsUndefined(O) || JS_IsNull(O))
+ return JS_ThrowTypeError(ctx, "cannot convert to object");
+
+ if (!JS_IsUndefined(regexp) && !JS_IsNull(regexp)) {
+ matcher = JS_GetProperty(ctx, regexp, atom);
+ if (JS_IsException(matcher))
+ return JS_EXCEPTION;
+ if (atom == JS_ATOM_Symbol_matchAll) {
+ if (check_regexp_g_flag(ctx, regexp) < 0) {
+ JS_FreeValue(ctx, matcher);
+ return JS_EXCEPTION;
+ }
+ }
+ if (!JS_IsUndefined(matcher) && !JS_IsNull(matcher)) {
+ return JS_CallFree(ctx, matcher, regexp, 1, &O);
+ }
+ }
+ S = JS_ToString(ctx, O);
+ if (JS_IsException(S))
+ return JS_EXCEPTION;
+ args_len = 1;
+ args[0] = regexp;
+ str = JS_UNDEFINED;
+ if (atom == JS_ATOM_Symbol_matchAll) {
+ str = JS_NewString(ctx, "g");
+ if (JS_IsException(str))
+ goto fail;
+ args[args_len++] = (JSValueConst)str;
+ }
+ rx = JS_CallConstructor(ctx, ctx->regexp_ctor, args_len, args);
+ JS_FreeValue(ctx, str);
+ if (JS_IsException(rx)) {
+ fail:
+ JS_FreeValue(ctx, S);
+ return JS_EXCEPTION;
+ }
+ result = JS_InvokeFree(ctx, rx, atom, 1, (JSValueConst *)&S);
+ JS_FreeValue(ctx, S);
+ return result;
+}
+
+static JSValue js_string___GetSubstitution(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ // GetSubstitution(matched, str, position, captures, namedCaptures, rep)
+ JSValueConst matched, str, captures, namedCaptures, rep;
+ JSValue capture, name, s;
+ uint32_t position, len, matched_len, captures_len;
+ int i, j, j0, k, k1;
+ int c, c1;
+ StringBuffer b_s, *b = &b_s;
+ JSString *sp, *rp;
+
+ matched = argv[0];
+ str = argv[1];
+ captures = argv[3];
+ namedCaptures = argv[4];
+ rep = argv[5];
+
+ if (!JS_IsString(rep) || !JS_IsString(str))
+ return JS_ThrowTypeError(ctx, "not a string");
+
+ sp = JS_VALUE_GET_STRING(str);
+ rp = JS_VALUE_GET_STRING(rep);
+
+ string_buffer_init(ctx, b, 0);
+
+ captures_len = 0;
+ if (!JS_IsUndefined(captures)) {
+ if (js_get_length32(ctx, &captures_len, captures))
+ goto exception;
+ }
+ if (js_get_length32(ctx, &matched_len, matched))
+ goto exception;
+ if (JS_ToUint32(ctx, &position, argv[2]) < 0)
+ goto exception;
+
+ len = rp->len;
+ i = 0;
+ for(;;) {
+ j = string_indexof_char(rp, '$', i);
+ if (j < 0 || j + 1 >= len)
+ break;
+ string_buffer_concat(b, rp, i, j);
+ j0 = j++;
+ c = string_get(rp, j++);
+ if (c == '$') {
+ string_buffer_putc8(b, '$');
+ } else if (c == '&') {
+ if (string_buffer_concat_value(b, matched))
+ goto exception;
+ } else if (c == '`') {
+ string_buffer_concat(b, sp, 0, position);
+ } else if (c == '\'') {
+ string_buffer_concat(b, sp, position + matched_len, sp->len);
+ } else if (c >= '0' && c <= '9') {
+ k = c - '0';
+ if (j < len) {
+ c1 = string_get(rp, j);
+ if (c1 >= '0' && c1 <= '9') {
+ /* This behavior is specified in ES6 and refined in ECMA 2019 */
+ /* ECMA 2019 does not have the extra test, but
+ Test262 S15.5.4.11_A3_T1..3 require this behavior */
+ k1 = k * 10 + c1 - '0';
+ if (k1 >= 1 && k1 < captures_len) {
+ k = k1;
+ j++;
+ }
+ }
+ }
+ if (k >= 1 && k < captures_len) {
+ s = JS_GetPropertyInt64(ctx, captures, k);
+ if (JS_IsException(s))
+ goto exception;
+ if (!JS_IsUndefined(s)) {
+ if (string_buffer_concat_value_free(b, s))
+ goto exception;
+ }
+ } else {
+ goto norep;
+ }
+ } else if (c == '<' && !JS_IsUndefined(namedCaptures)) {
+ k = string_indexof_char(rp, '>', j);
+ if (k < 0)
+ goto norep;
+ name = js_sub_string(ctx, rp, j, k);
+ if (JS_IsException(name))
+ goto exception;
+ capture = JS_GetPropertyValue(ctx, namedCaptures, name);
+ if (JS_IsException(capture))
+ goto exception;
+ if (!JS_IsUndefined(capture)) {
+ if (string_buffer_concat_value_free(b, capture))
+ goto exception;
+ }
+ j = k + 1;
+ } else {
+ norep:
+ string_buffer_concat(b, rp, j0, j);
+ }
+ i = j;
+ }
+ string_buffer_concat(b, rp, i, rp->len);
+ return string_buffer_end(b);
+exception:
+ string_buffer_free(b);
+ return JS_EXCEPTION;
+}
+
+static JSValue js_string_replace(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv,
+ int is_replaceAll)
+{
+ // replace(rx, rep)
+ JSValueConst O = this_val, searchValue = argv[0], replaceValue = argv[1];
+ JSValueConst args[6];
+ JSValue str, search_str, replaceValue_str, repl_str;
+ JSString *sp, *searchp;
+ StringBuffer b_s, *b = &b_s;
+ int pos, functionalReplace, endOfLastMatch;
+ BOOL is_first;
+
+ if (JS_IsUndefined(O) || JS_IsNull(O))
+ return JS_ThrowTypeError(ctx, "cannot convert to object");
+
+ search_str = JS_UNDEFINED;
+ replaceValue_str = JS_UNDEFINED;
+ repl_str = JS_UNDEFINED;
+
+ if (!JS_IsUndefined(searchValue) && !JS_IsNull(searchValue)) {
+ JSValue replacer;
+ if (is_replaceAll) {
+ if (check_regexp_g_flag(ctx, searchValue) < 0)
+ return JS_EXCEPTION;
+ }
+ replacer = JS_GetProperty(ctx, searchValue, JS_ATOM_Symbol_replace);
+ if (JS_IsException(replacer))
+ return JS_EXCEPTION;
+ if (!JS_IsUndefined(replacer) && !JS_IsNull(replacer)) {
+ args[0] = O;
+ args[1] = replaceValue;
+ return JS_CallFree(ctx, replacer, searchValue, 2, args);
+ }
+ }
+ string_buffer_init(ctx, b, 0);
+
+ str = JS_ToString(ctx, O);
+ if (JS_IsException(str))
+ goto exception;
+ search_str = JS_ToString(ctx, searchValue);
+ if (JS_IsException(search_str))
+ goto exception;
+ functionalReplace = JS_IsFunction(ctx, replaceValue);
+ if (!functionalReplace) {
+ replaceValue_str = JS_ToString(ctx, replaceValue);
+ if (JS_IsException(replaceValue_str))
+ goto exception;
+ }
+
+ sp = JS_VALUE_GET_STRING(str);
+ searchp = JS_VALUE_GET_STRING(search_str);
+ endOfLastMatch = 0;
+ is_first = TRUE;
+ for(;;) {
+ if (unlikely(searchp->len == 0)) {
+ if (is_first)
+ pos = 0;
+ else if (endOfLastMatch >= sp->len)
+ pos = -1;
+ else
+ pos = endOfLastMatch + 1;
+ } else {
+ pos = string_indexof(sp, searchp, endOfLastMatch);
+ }
+ if (pos < 0) {
+ if (is_first) {
+ string_buffer_free(b);
+ JS_FreeValue(ctx, search_str);
+ JS_FreeValue(ctx, replaceValue_str);
+ return str;
+ } else {
+ break;
+ }
+ }
+ if (functionalReplace) {
+ args[0] = search_str;
+ args[1] = JS_NewInt32(ctx, pos);
+ args[2] = str;
+ repl_str = JS_ToStringFree(ctx, JS_Call(ctx, replaceValue, JS_UNDEFINED, 3, args));
+ } else {
+ args[0] = search_str;
+ args[1] = str;
+ args[2] = JS_NewInt32(ctx, pos);
+ args[3] = JS_UNDEFINED;
+ args[4] = JS_UNDEFINED;
+ args[5] = replaceValue_str;
+ repl_str = js_string___GetSubstitution(ctx, JS_UNDEFINED, 6, args);
+ }
+ if (JS_IsException(repl_str))
+ goto exception;
+
+ string_buffer_concat(b, sp, endOfLastMatch, pos);
+ string_buffer_concat_value_free(b, repl_str);
+ endOfLastMatch = pos + searchp->len;
+ is_first = FALSE;
+ if (!is_replaceAll)
+ break;
+ }
+ string_buffer_concat(b, sp, endOfLastMatch, sp->len);
+ JS_FreeValue(ctx, search_str);
+ JS_FreeValue(ctx, replaceValue_str);
+ JS_FreeValue(ctx, str);
+ return string_buffer_end(b);
+
+exception:
+ string_buffer_free(b);
+ JS_FreeValue(ctx, search_str);
+ JS_FreeValue(ctx, replaceValue_str);
+ JS_FreeValue(ctx, str);
+ return JS_EXCEPTION;
+}
+
+static JSValue js_string_split(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ // split(sep, limit)
+ JSValueConst O = this_val, separator = argv[0], limit = argv[1];
+ JSValueConst args[2];
+ JSValue S, A, R, T;
+ uint32_t lim, lengthA;
+ int64_t p, q, s, r, e;
+ JSString *sp, *rp;
+
+ if (JS_IsUndefined(O) || JS_IsNull(O))
+ return JS_ThrowTypeError(ctx, "cannot convert to object");
+
+ S = JS_UNDEFINED;
+ A = JS_UNDEFINED;
+ R = JS_UNDEFINED;
+
+ if (!JS_IsUndefined(separator) && !JS_IsNull(separator)) {
+ JSValue splitter;
+ splitter = JS_GetProperty(ctx, separator, JS_ATOM_Symbol_split);
+ if (JS_IsException(splitter))
+ return JS_EXCEPTION;
+ if (!JS_IsUndefined(splitter) && !JS_IsNull(splitter)) {
+ args[0] = O;
+ args[1] = limit;
+ return JS_CallFree(ctx, splitter, separator, 2, args);
+ }
+ }
+ S = JS_ToString(ctx, O);
+ if (JS_IsException(S))
+ goto exception;
+ A = JS_NewArray(ctx);
+ if (JS_IsException(A))
+ goto exception;
+ lengthA = 0;
+ if (JS_IsUndefined(limit)) {
+ lim = 0xffffffff;
+ } else {
+ if (JS_ToUint32(ctx, &lim, limit) < 0)
+ goto exception;
+ }
+ sp = JS_VALUE_GET_STRING(S);
+ s = sp->len;
+ R = JS_ToString(ctx, separator);
+ if (JS_IsException(R))
+ goto exception;
+ rp = JS_VALUE_GET_STRING(R);
+ r = rp->len;
+ p = 0;
+ if (lim == 0)
+ goto done;
+ if (JS_IsUndefined(separator))
+ goto add_tail;
+ if (s == 0) {
+ if (r != 0)
+ goto add_tail;
+ goto done;
+ }
+ q = p;
+ for (q = p; (q += !r) <= s - r - !r; q = p = e + r) {
+ e = string_indexof(sp, rp, q);
+ if (e < 0)
+ break;
+ T = js_sub_string(ctx, sp, p, e);
+ if (JS_IsException(T))
+ goto exception;
+ if (JS_CreateDataPropertyUint32(ctx, A, lengthA++, T, 0) < 0)
+ goto exception;
+ if (lengthA == lim)
+ goto done;
+ }
+add_tail:
+ T = js_sub_string(ctx, sp, p, s);
+ if (JS_IsException(T))
+ goto exception;
+ if (JS_CreateDataPropertyUint32(ctx, A, lengthA++, T,0 ) < 0)
+ goto exception;
+done:
+ JS_FreeValue(ctx, S);
+ JS_FreeValue(ctx, R);
+ return A;
+
+exception:
+ JS_FreeValue(ctx, A);
+ JS_FreeValue(ctx, S);
+ JS_FreeValue(ctx, R);
+ return JS_EXCEPTION;
+}
+
+static JSValue js_string_substring(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValue str, ret;
+ int a, b, start, end;
+ JSString *p;
+
+ str = JS_ToStringCheckObject(ctx, this_val);
+ if (JS_IsException(str))
+ return str;
+ p = JS_VALUE_GET_STRING(str);
+ if (JS_ToInt32Clamp(ctx, &a, argv[0], 0, p->len, 0)) {
+ JS_FreeValue(ctx, str);
+ return JS_EXCEPTION;
+ }
+ b = p->len;
+ if (!JS_IsUndefined(argv[1])) {
+ if (JS_ToInt32Clamp(ctx, &b, argv[1], 0, p->len, 0)) {
+ JS_FreeValue(ctx, str);
+ return JS_EXCEPTION;
+ }
+ }
+ if (a < b) {
+ start = a;
+ end = b;
+ } else {
+ start = b;
+ end = a;
+ }
+ ret = js_sub_string(ctx, p, start, end);
+ JS_FreeValue(ctx, str);
+ return ret;
+}
+
+static JSValue js_string_substr(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValue str, ret;
+ int a, len, n;
+ JSString *p;
+
+ str = JS_ToStringCheckObject(ctx, this_val);
+ if (JS_IsException(str))
+ return str;
+ p = JS_VALUE_GET_STRING(str);
+ len = p->len;
+ if (JS_ToInt32Clamp(ctx, &a, argv[0], 0, len, len)) {
+ JS_FreeValue(ctx, str);
+ return JS_EXCEPTION;
+ }
+ n = len - a;
+ if (!JS_IsUndefined(argv[1])) {
+ if (JS_ToInt32Clamp(ctx, &n, argv[1], 0, len - a, 0)) {
+ JS_FreeValue(ctx, str);
+ return JS_EXCEPTION;
+ }
+ }
+ ret = js_sub_string(ctx, p, a, a + n);
+ JS_FreeValue(ctx, str);
+ return ret;
+}
+
+static JSValue js_string_slice(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValue str, ret;
+ int len, start, end;
+ JSString *p;
+
+ str = JS_ToStringCheckObject(ctx, this_val);
+ if (JS_IsException(str))
+ return str;
+ p = JS_VALUE_GET_STRING(str);
+ len = p->len;
+ if (JS_ToInt32Clamp(ctx, &start, argv[0], 0, len, len)) {
+ JS_FreeValue(ctx, str);
+ return JS_EXCEPTION;
+ }
+ end = len;
+ if (!JS_IsUndefined(argv[1])) {
+ if (JS_ToInt32Clamp(ctx, &end, argv[1], 0, len, len)) {
+ JS_FreeValue(ctx, str);
+ return JS_EXCEPTION;
+ }
+ }
+ ret = js_sub_string(ctx, p, start, max_int(end, start));
+ JS_FreeValue(ctx, str);
+ return ret;
+}
+
+static JSValue js_string_pad(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int padEnd)
+{
+ JSValue str, v = JS_UNDEFINED;
+ StringBuffer b_s, *b = &b_s;
+ JSString *p, *p1 = NULL;
+ int n, len, c = ' ';
+
+ str = JS_ToStringCheckObject(ctx, this_val);
+ if (JS_IsException(str))
+ goto fail1;
+ if (JS_ToInt32Sat(ctx, &n, argv[0]))
+ goto fail2;
+ p = JS_VALUE_GET_STRING(str);
+ len = p->len;
+ if (len >= n)
+ return str;
+ if (argc > 1 && !JS_IsUndefined(argv[1])) {
+ v = JS_ToString(ctx, argv[1]);
+ if (JS_IsException(v))
+ goto fail2;
+ p1 = JS_VALUE_GET_STRING(v);
+ if (p1->len == 0) {
+ JS_FreeValue(ctx, v);
+ return str;
+ }
+ if (p1->len == 1) {
+ c = string_get(p1, 0);
+ p1 = NULL;
+ }
+ }
+ if (n > JS_STRING_LEN_MAX) {
+ JS_ThrowRangeError(ctx, "invalid string length");
+ goto fail2;
+ }
+ if (string_buffer_init(ctx, b, n))
+ goto fail3;
+ n -= len;
+ if (padEnd) {
+ if (string_buffer_concat(b, p, 0, len))
+ goto fail;
+ }
+ if (p1) {
+ while (n > 0) {
+ int chunk = min_int(n, p1->len);
+ if (string_buffer_concat(b, p1, 0, chunk))
+ goto fail;
+ n -= chunk;
+ }
+ } else {
+ if (string_buffer_fill(b, c, n))
+ goto fail;
+ }
+ if (!padEnd) {
+ if (string_buffer_concat(b, p, 0, len))
+ goto fail;
+ }
+ JS_FreeValue(ctx, v);
+ JS_FreeValue(ctx, str);
+ return string_buffer_end(b);
+
+fail:
+ string_buffer_free(b);
+fail3:
+ JS_FreeValue(ctx, v);
+fail2:
+ JS_FreeValue(ctx, str);
+fail1:
+ return JS_EXCEPTION;
+}
+
+static JSValue js_string_repeat(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValue str;
+ StringBuffer b_s, *b = &b_s;
+ JSString *p;
+ int64_t val;
+ int n, len;
+
+ str = JS_ToStringCheckObject(ctx, this_val);
+ if (JS_IsException(str))
+ goto fail;
+ if (JS_ToInt64Sat(ctx, &val, argv[0]))
+ goto fail;
+ if (val < 0 || val > 2147483647) {
+ JS_ThrowRangeError(ctx, "invalid repeat count");
+ goto fail;
+ }
+ n = val;
+ p = JS_VALUE_GET_STRING(str);
+ len = p->len;
+ if (len == 0 || n == 1)
+ return str;
+ // XXX: potential arithmetic overflow
+ if (val * len > JS_STRING_LEN_MAX) {
+ JS_ThrowRangeError(ctx, "invalid string length");
+ goto fail;
+ }
+ if (string_buffer_init2(ctx, b, n * len, p->is_wide_char))
+ goto fail;
+ if (len == 1) {
+ string_buffer_fill(b, string_get(p, 0), n);
+ } else {
+ while (n-- > 0) {
+ string_buffer_concat(b, p, 0, len);
+ }
+ }
+ JS_FreeValue(ctx, str);
+ return string_buffer_end(b);
+
+fail:
+ JS_FreeValue(ctx, str);
+ return JS_EXCEPTION;
+}
+
+static JSValue js_string_trim(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int magic)
+{
+ JSValue str, ret;
+ int a, b, len;
+ JSString *p;
+
+ str = JS_ToStringCheckObject(ctx, this_val);
+ if (JS_IsException(str))
+ return str;
+ p = JS_VALUE_GET_STRING(str);
+ a = 0;
+ b = len = p->len;
+ if (magic & 1) {
+ while (a < len && lre_is_space(string_get(p, a)))
+ a++;
+ }
+ if (magic & 2) {
+ while (b > a && lre_is_space(string_get(p, b - 1)))
+ b--;
+ }
+ ret = js_sub_string(ctx, p, a, b);
+ JS_FreeValue(ctx, str);
+ return ret;
+}
+
+static JSValue js_string___quote(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ return JS_ToQuotedString(ctx, this_val);
+}
+
+/* return 0 if before the first char */
+static int string_prevc(JSString *p, int *pidx)
+{
+ int idx, c, c1;
+
+ idx = *pidx;
+ if (idx <= 0)
+ return 0;
+ idx--;
+ if (p->is_wide_char) {
+ c = p->u.str16[idx];
+ if (is_lo_surrogate(c) && idx > 0) {
+ c1 = p->u.str16[idx - 1];
+ if (is_hi_surrogate(c1)) {
+ c = from_surrogate(c1, c);
+ idx--;
+ }
+ }
+ } else {
+ c = p->u.str8[idx];
+ }
+ *pidx = idx;
+ return c;
+}
+
+static BOOL test_final_sigma(JSString *p, int sigma_pos)
+{
+ int k, c1;
+
+ /* before C: skip case ignorable chars and check there is
+ a cased letter */
+ k = sigma_pos;
+ for(;;) {
+ c1 = string_prevc(p, &k);
+ if (!lre_is_case_ignorable(c1))
+ break;
+ }
+ if (!lre_is_cased(c1))
+ return FALSE;
+
+ /* after C: skip case ignorable chars and check there is
+ no cased letter */
+ k = sigma_pos + 1;
+ for(;;) {
+ if (k >= p->len)
+ return TRUE;
+ c1 = string_getc(p, &k);
+ if (!lre_is_case_ignorable(c1))
+ break;
+ }
+ return !lre_is_cased(c1);
+}
+
+static JSValue js_string_toLowerCase(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int to_lower)
+{
+ JSValue val;
+ StringBuffer b_s, *b = &b_s;
+ JSString *p;
+ int i, c, j, l;
+ uint32_t res[LRE_CC_RES_LEN_MAX];
+
+ val = JS_ToStringCheckObject(ctx, this_val);
+ if (JS_IsException(val))
+ return val;
+ p = JS_VALUE_GET_STRING(val);
+ if (p->len == 0)
+ return val;
+ if (string_buffer_init(ctx, b, p->len))
+ goto fail;
+ for(i = 0; i < p->len;) {
+ c = string_getc(p, &i);
+ if (c == 0x3a3 && to_lower && test_final_sigma(p, i - 1)) {
+ res[0] = 0x3c2; /* final sigma */
+ l = 1;
+ } else {
+ l = lre_case_conv(res, c, to_lower);
+ }
+ for(j = 0; j < l; j++) {
+ if (string_buffer_putc(b, res[j]))
+ goto fail;
+ }
+ }
+ JS_FreeValue(ctx, val);
+ return string_buffer_end(b);
+ fail:
+ JS_FreeValue(ctx, val);
+ string_buffer_free(b);
+ return JS_EXCEPTION;
+}
+
+#ifdef CONFIG_ALL_UNICODE
+
+/* return (-1, NULL) if exception, otherwise (len, buf) */
+static int JS_ToUTF32String(JSContext *ctx, uint32_t **pbuf, JSValueConst val1)
+{
+ JSValue val;
+ JSString *p;
+ uint32_t *buf;
+ int i, j, len;
+
+ val = JS_ToString(ctx, val1);
+ if (JS_IsException(val))
+ return -1;
+ p = JS_VALUE_GET_STRING(val);
+ len = p->len;
+ /* UTF32 buffer length is len minus the number of correct surrogates pairs */
+ buf = js_malloc(ctx, sizeof(buf[0]) * max_int(len, 1));
+ if (!buf) {
+ JS_FreeValue(ctx, val);
+ goto fail;
+ }
+ for(i = j = 0; i < len;)
+ buf[j++] = string_getc(p, &i);
+ JS_FreeValue(ctx, val);
+ *pbuf = buf;
+ return j;
+ fail:
+ *pbuf = NULL;
+ return -1;
+}
+
+static JSValue JS_NewUTF32String(JSContext *ctx, const uint32_t *buf, int len)
+{
+ int i;
+ StringBuffer b_s, *b = &b_s;
+ if (string_buffer_init(ctx, b, len))
+ return JS_EXCEPTION;
+ for(i = 0; i < len; i++) {
+ if (string_buffer_putc(b, buf[i]))
+ goto fail;
+ }
+ return string_buffer_end(b);
+ fail:
+ string_buffer_free(b);
+ return JS_EXCEPTION;
+}
+
+static int js_string_normalize1(JSContext *ctx, uint32_t **pout_buf,
+ JSValueConst val,
+ UnicodeNormalizationEnum n_type)
+{
+ int buf_len, out_len;
+ uint32_t *buf, *out_buf;
+
+ buf_len = JS_ToUTF32String(ctx, &buf, val);
+ if (buf_len < 0)
+ return -1;
+ out_len = unicode_normalize(&out_buf, buf, buf_len, n_type,
+ ctx->rt, (DynBufReallocFunc *)js_realloc_rt);
+ js_free(ctx, buf);
+ if (out_len < 0)
+ return -1;
+ *pout_buf = out_buf;
+ return out_len;
+}
+
+static JSValue js_string_normalize(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ const char *form, *p;
+ size_t form_len;
+ int is_compat, out_len;
+ UnicodeNormalizationEnum n_type;
+ JSValue val;
+ uint32_t *out_buf;
+
+ val = JS_ToStringCheckObject(ctx, this_val);
+ if (JS_IsException(val))
+ return val;
+
+ if (argc == 0 || JS_IsUndefined(argv[0])) {
+ n_type = UNICODE_NFC;
+ } else {
+ form = JS_ToCStringLen(ctx, &form_len, argv[0]);
+ if (!form)
+ goto fail1;
+ p = form;
+ if (p[0] != 'N' || p[1] != 'F')
+ goto bad_form;
+ p += 2;
+ is_compat = FALSE;
+ if (*p == 'K') {
+ is_compat = TRUE;
+ p++;
+ }
+ if (*p == 'C' || *p == 'D') {
+ n_type = UNICODE_NFC + is_compat * 2 + (*p - 'C');
+ if ((p + 1 - form) != form_len)
+ goto bad_form;
+ } else {
+ bad_form:
+ JS_FreeCString(ctx, form);
+ JS_ThrowRangeError(ctx, "bad normalization form");
+ fail1:
+ JS_FreeValue(ctx, val);
+ return JS_EXCEPTION;
+ }
+ JS_FreeCString(ctx, form);
+ }
+
+ out_len = js_string_normalize1(ctx, &out_buf, val, n_type);
+ JS_FreeValue(ctx, val);
+ if (out_len < 0)
+ return JS_EXCEPTION;
+ val = JS_NewUTF32String(ctx, out_buf, out_len);
+ js_free(ctx, out_buf);
+ return val;
+}
+
+/* return < 0, 0 or > 0 */
+static int js_UTF32_compare(const uint32_t *buf1, int buf1_len,
+ const uint32_t *buf2, int buf2_len)
+{
+ int i, len, c, res;
+ len = min_int(buf1_len, buf2_len);
+ for(i = 0; i < len; i++) {
+ /* Note: range is limited so a subtraction is valid */
+ c = buf1[i] - buf2[i];
+ if (c != 0)
+ return c;
+ }
+ if (buf1_len == buf2_len)
+ res = 0;
+ else if (buf1_len < buf2_len)
+ res = -1;
+ else
+ res = 1;
+ return res;
+}
+
+static JSValue js_string_localeCompare(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValue a, b;
+ int cmp, a_len, b_len;
+ uint32_t *a_buf, *b_buf;
+
+ a = JS_ToStringCheckObject(ctx, this_val);
+ if (JS_IsException(a))
+ return JS_EXCEPTION;
+ b = JS_ToString(ctx, argv[0]);
+ if (JS_IsException(b)) {
+ JS_FreeValue(ctx, a);
+ return JS_EXCEPTION;
+ }
+ a_len = js_string_normalize1(ctx, &a_buf, a, UNICODE_NFC);
+ JS_FreeValue(ctx, a);
+ if (a_len < 0) {
+ JS_FreeValue(ctx, b);
+ return JS_EXCEPTION;
+ }
+
+ b_len = js_string_normalize1(ctx, &b_buf, b, UNICODE_NFC);
+ JS_FreeValue(ctx, b);
+ if (b_len < 0) {
+ js_free(ctx, a_buf);
+ return JS_EXCEPTION;
+ }
+ cmp = js_UTF32_compare(a_buf, a_len, b_buf, b_len);
+ js_free(ctx, a_buf);
+ js_free(ctx, b_buf);
+ return JS_NewInt32(ctx, cmp);
+}
+#else /* CONFIG_ALL_UNICODE */
+static JSValue js_string_localeCompare(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValue a, b;
+ int cmp;
+
+ a = JS_ToStringCheckObject(ctx, this_val);
+ if (JS_IsException(a))
+ return JS_EXCEPTION;
+ b = JS_ToString(ctx, argv[0]);
+ if (JS_IsException(b)) {
+ JS_FreeValue(ctx, a);
+ return JS_EXCEPTION;
+ }
+ cmp = js_string_compare(ctx, JS_VALUE_GET_STRING(a), JS_VALUE_GET_STRING(b));
+ JS_FreeValue(ctx, a);
+ JS_FreeValue(ctx, b);
+ return JS_NewInt32(ctx, cmp);
+}
+#endif /* !CONFIG_ALL_UNICODE */
+
+/* also used for String.prototype.valueOf */
+static JSValue js_string_toString(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ return js_thisStringValue(ctx, this_val);
+}
+
+#if 0
+static JSValue js_string___toStringCheckObject(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ return JS_ToStringCheckObject(ctx, argv[0]);
+}
+
+static JSValue js_string___toString(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ return JS_ToString(ctx, argv[0]);
+}
+
+static JSValue js_string___advanceStringIndex(JSContext *ctx, JSValueConst
+ this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValue str;
+ int idx;
+ BOOL is_unicode;
+ JSString *p;
+
+ str = JS_ToString(ctx, argv[0]);
+ if (JS_IsException(str))
+ return str;
+ if (JS_ToInt32Sat(ctx, &idx, argv[1])) {
+ JS_FreeValue(ctx, str);
+ return JS_EXCEPTION;
+ }
+ is_unicode = JS_ToBool(ctx, argv[2]);
+ p = JS_VALUE_GET_STRING(str);
+ if (!is_unicode || (unsigned)idx >= p->len || !p->is_wide_char) {
+ idx++;
+ } else {
+ string_getc(p, &idx);
+ }
+ JS_FreeValue(ctx, str);
+ return JS_NewInt32(ctx, idx);
+}
+#endif
+
+/* String Iterator */
+
+static JSValue js_string_iterator_next(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv,
+ BOOL *pdone, int magic)
+{
+ JSArrayIteratorData *it;
+ uint32_t idx, c, start;
+ JSString *p;
+
+ it = JS_GetOpaque2(ctx, this_val, JS_CLASS_STRING_ITERATOR);
+ if (!it) {
+ *pdone = FALSE;
+ return JS_EXCEPTION;
+ }
+ if (JS_IsUndefined(it->obj))
+ goto done;
+ p = JS_VALUE_GET_STRING(it->obj);
+ idx = it->idx;
+ if (idx >= p->len) {
+ JS_FreeValue(ctx, it->obj);
+ it->obj = JS_UNDEFINED;
+ done:
+ *pdone = TRUE;
+ return JS_UNDEFINED;
+ }
+
+ start = idx;
+ c = string_getc(p, (int *)&idx);
+ it->idx = idx;
+ *pdone = FALSE;
+ if (c <= 0xffff) {
+ return js_new_string_char(ctx, c);
+ } else {
+ return js_new_string16(ctx, p->u.str16 + start, 2);
+ }
+}
+
+/* ES6 Annex B 2.3.2 etc. */
+enum {
+ magic_string_anchor,
+ magic_string_big,
+ magic_string_blink,
+ magic_string_bold,
+ magic_string_fixed,
+ magic_string_fontcolor,
+ magic_string_fontsize,
+ magic_string_italics,
+ magic_string_link,
+ magic_string_small,
+ magic_string_strike,
+ magic_string_sub,
+ magic_string_sup,
+};
+
+static JSValue js_string_CreateHTML(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int magic)
+{
+ JSValue str;
+ const JSString *p;
+ StringBuffer b_s, *b = &b_s;
+ static struct { const char *tag, *attr; } const defs[] = {
+ { "a", "name" }, { "big", NULL }, { "blink", NULL }, { "b", NULL },
+ { "tt", NULL }, { "font", "color" }, { "font", "size" }, { "i", NULL },
+ { "a", "href" }, { "small", NULL }, { "strike", NULL },
+ { "sub", NULL }, { "sup", NULL },
+ };
+
+ str = JS_ToStringCheckObject(ctx, this_val);
+ if (JS_IsException(str))
+ return JS_EXCEPTION;
+ string_buffer_init(ctx, b, 7);
+ string_buffer_putc8(b, '<');
+ string_buffer_puts8(b, defs[magic].tag);
+ if (defs[magic].attr) {
+ // r += " " + attr + "=\"" + value + "\"";
+ JSValue value;
+ int i;
+
+ string_buffer_putc8(b, ' ');
+ string_buffer_puts8(b, defs[magic].attr);
+ string_buffer_puts8(b, "=\"");
+ value = JS_ToStringCheckObject(ctx, argv[0]);
+ if (JS_IsException(value)) {
+ JS_FreeValue(ctx, str);
+ string_buffer_free(b);
+ return JS_EXCEPTION;
+ }
+ p = JS_VALUE_GET_STRING(value);
+ for (i = 0; i < p->len; i++) {
+ int c = string_get(p, i);
+ if (c == '"') {
+ string_buffer_puts8(b, """);
+ } else {
+ string_buffer_putc16(b, c);
+ }
+ }
+ JS_FreeValue(ctx, value);
+ string_buffer_putc8(b, '\"');
+ }
+ // return r + ">" + str + "</" + tag + ">";
+ string_buffer_putc8(b, '>');
+ string_buffer_concat_value_free(b, str);
+ string_buffer_puts8(b, "</");
+ string_buffer_puts8(b, defs[magic].tag);
+ string_buffer_putc8(b, '>');
+ return string_buffer_end(b);
+}
+
+static const JSCFunctionListEntry js_string_funcs[] = {
+ JS_CFUNC_DEF("fromCharCode", 1, js_string_fromCharCode ),
+ JS_CFUNC_DEF("fromCodePoint", 1, js_string_fromCodePoint ),
+ JS_CFUNC_DEF("raw", 1, js_string_raw ),
+ //JS_CFUNC_DEF("__toString", 1, js_string___toString ),
+ //JS_CFUNC_DEF("__isSpace", 1, js_string___isSpace ),
+ //JS_CFUNC_DEF("__toStringCheckObject", 1, js_string___toStringCheckObject ),
+ //JS_CFUNC_DEF("__advanceStringIndex", 3, js_string___advanceStringIndex ),
+ //JS_CFUNC_DEF("__GetSubstitution", 6, js_string___GetSubstitution ),
+};
+
+static const JSCFunctionListEntry js_string_proto_funcs[] = {
+ JS_PROP_INT32_DEF("length", 0, JS_PROP_CONFIGURABLE ),
+ JS_CFUNC_MAGIC_DEF("at", 1, js_string_charAt, 1 ),
+ JS_CFUNC_DEF("charCodeAt", 1, js_string_charCodeAt ),
+ JS_CFUNC_MAGIC_DEF("charAt", 1, js_string_charAt, 0 ),
+ JS_CFUNC_DEF("concat", 1, js_string_concat ),
+ JS_CFUNC_DEF("codePointAt", 1, js_string_codePointAt ),
+ JS_CFUNC_DEF("isWellFormed", 0, js_string_isWellFormed ),
+ JS_CFUNC_DEF("toWellFormed", 0, js_string_toWellFormed ),
+ JS_CFUNC_MAGIC_DEF("indexOf", 1, js_string_indexOf, 0 ),
+ JS_CFUNC_MAGIC_DEF("lastIndexOf", 1, js_string_indexOf, 1 ),
+ JS_CFUNC_MAGIC_DEF("includes", 1, js_string_includes, 0 ),
+ JS_CFUNC_MAGIC_DEF("endsWith", 1, js_string_includes, 2 ),
+ JS_CFUNC_MAGIC_DEF("startsWith", 1, js_string_includes, 1 ),
+ JS_CFUNC_MAGIC_DEF("match", 1, js_string_match, JS_ATOM_Symbol_match ),
+ JS_CFUNC_MAGIC_DEF("matchAll", 1, js_string_match, JS_ATOM_Symbol_matchAll ),
+ JS_CFUNC_MAGIC_DEF("search", 1, js_string_match, JS_ATOM_Symbol_search ),
+ JS_CFUNC_DEF("split", 2, js_string_split ),
+ JS_CFUNC_DEF("substring", 2, js_string_substring ),
+ JS_CFUNC_DEF("substr", 2, js_string_substr ),
+ JS_CFUNC_DEF("slice", 2, js_string_slice ),
+ JS_CFUNC_DEF("repeat", 1, js_string_repeat ),
+ JS_CFUNC_MAGIC_DEF("replace", 2, js_string_replace, 0 ),
+ JS_CFUNC_MAGIC_DEF("replaceAll", 2, js_string_replace, 1 ),
+ JS_CFUNC_MAGIC_DEF("padEnd", 1, js_string_pad, 1 ),
+ JS_CFUNC_MAGIC_DEF("padStart", 1, js_string_pad, 0 ),
+ JS_CFUNC_MAGIC_DEF("trim", 0, js_string_trim, 3 ),
+ JS_CFUNC_MAGIC_DEF("trimEnd", 0, js_string_trim, 2 ),
+ JS_ALIAS_DEF("trimRight", "trimEnd" ),
+ JS_CFUNC_MAGIC_DEF("trimStart", 0, js_string_trim, 1 ),
+ JS_ALIAS_DEF("trimLeft", "trimStart" ),
+ JS_CFUNC_DEF("toString", 0, js_string_toString ),
+ JS_CFUNC_DEF("valueOf", 0, js_string_toString ),
+ JS_CFUNC_DEF("__quote", 1, js_string___quote ),
+ JS_CFUNC_DEF("localeCompare", 1, js_string_localeCompare ),
+ JS_CFUNC_MAGIC_DEF("toLowerCase", 0, js_string_toLowerCase, 1 ),
+ JS_CFUNC_MAGIC_DEF("toUpperCase", 0, js_string_toLowerCase, 0 ),
+ JS_CFUNC_MAGIC_DEF("toLocaleLowerCase", 0, js_string_toLowerCase, 1 ),
+ JS_CFUNC_MAGIC_DEF("toLocaleUpperCase", 0, js_string_toLowerCase, 0 ),
+ JS_CFUNC_MAGIC_DEF("[Symbol.iterator]", 0, js_create_array_iterator, JS_ITERATOR_KIND_VALUE | 4 ),
+ /* ES6 Annex B 2.3.2 etc. */
+ JS_CFUNC_MAGIC_DEF("anchor", 1, js_string_CreateHTML, magic_string_anchor ),
+ JS_CFUNC_MAGIC_DEF("big", 0, js_string_CreateHTML, magic_string_big ),
+ JS_CFUNC_MAGIC_DEF("blink", 0, js_string_CreateHTML, magic_string_blink ),
+ JS_CFUNC_MAGIC_DEF("bold", 0, js_string_CreateHTML, magic_string_bold ),
+ JS_CFUNC_MAGIC_DEF("fixed", 0, js_string_CreateHTML, magic_string_fixed ),
+ JS_CFUNC_MAGIC_DEF("fontcolor", 1, js_string_CreateHTML, magic_string_fontcolor ),
+ JS_CFUNC_MAGIC_DEF("fontsize", 1, js_string_CreateHTML, magic_string_fontsize ),
+ JS_CFUNC_MAGIC_DEF("italics", 0, js_string_CreateHTML, magic_string_italics ),
+ JS_CFUNC_MAGIC_DEF("link", 1, js_string_CreateHTML, magic_string_link ),
+ JS_CFUNC_MAGIC_DEF("small", 0, js_string_CreateHTML, magic_string_small ),
+ JS_CFUNC_MAGIC_DEF("strike", 0, js_string_CreateHTML, magic_string_strike ),
+ JS_CFUNC_MAGIC_DEF("sub", 0, js_string_CreateHTML, magic_string_sub ),
+ JS_CFUNC_MAGIC_DEF("sup", 0, js_string_CreateHTML, magic_string_sup ),
+};
+
+static const JSCFunctionListEntry js_string_iterator_proto_funcs[] = {
+ JS_ITERATOR_NEXT_DEF("next", 0, js_string_iterator_next, 0 ),
+ JS_PROP_STRING_DEF("[Symbol.toStringTag]", "String Iterator", JS_PROP_CONFIGURABLE ),
+};
+
+#ifdef CONFIG_ALL_UNICODE
+static const JSCFunctionListEntry js_string_proto_normalize[] = {
+ JS_CFUNC_DEF("normalize", 0, js_string_normalize ),
+};
+#endif
+
+void JS_AddIntrinsicStringNormalize(JSContext *ctx)
+{
+#ifdef CONFIG_ALL_UNICODE
+ JS_SetPropertyFunctionList(ctx, ctx->class_proto[JS_CLASS_STRING], js_string_proto_normalize,
+ countof(js_string_proto_normalize));
+#endif
+}
+
+/* Math */
+
+/* precondition: a and b are not NaN */
+static double js_fmin(double a, double b)
+{
+ if (a == 0 && b == 0) {
+ JSFloat64Union a1, b1;
+ a1.d = a;
+ b1.d = b;
+ a1.u64 |= b1.u64;
+ return a1.d;
+ } else {
+ return fmin(a, b);
+ }
+}
+
+/* precondition: a and b are not NaN */
+static double js_fmax(double a, double b)
+{
+ if (a == 0 && b == 0) {
+ JSFloat64Union a1, b1;
+ a1.d = a;
+ b1.d = b;
+ a1.u64 &= b1.u64;
+ return a1.d;
+ } else {
+ return fmax(a, b);
+ }
+}
+
+static JSValue js_math_min_max(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int magic)
+{
+ BOOL is_max = magic;
+ double r, a;
+ int i;
+ uint32_t tag;
+
+ if (unlikely(argc == 0)) {
+ return __JS_NewFloat64(ctx, is_max ? -1.0 / 0.0 : 1.0 / 0.0);
+ }
+
+ tag = JS_VALUE_GET_TAG(argv[0]);
+ if (tag == JS_TAG_INT) {
+ int a1, r1 = JS_VALUE_GET_INT(argv[0]);
+ for(i = 1; i < argc; i++) {
+ tag = JS_VALUE_GET_TAG(argv[i]);
+ if (tag != JS_TAG_INT) {
+ r = r1;
+ goto generic_case;
+ }
+ a1 = JS_VALUE_GET_INT(argv[i]);
+ if (is_max)
+ r1 = max_int(r1, a1);
+ else
+ r1 = min_int(r1, a1);
+
+ }
+ return JS_NewInt32(ctx, r1);
+ } else {
+ if (JS_ToFloat64(ctx, &r, argv[0]))
+ return JS_EXCEPTION;
+ i = 1;
+ generic_case:
+ while (i < argc) {
+ if (JS_ToFloat64(ctx, &a, argv[i]))
+ return JS_EXCEPTION;
+ if (!isnan(r)) {
+ if (isnan(a)) {
+ r = a;
+ } else {
+ if (is_max)
+ r = js_fmax(r, a);
+ else
+ r = js_fmin(r, a);
+ }
+ }
+ i++;
+ }
+ return JS_NewFloat64(ctx, r);
+ }
+}
+
+static double js_math_sign(double a)
+{
+ if (isnan(a) || a == 0.0)
+ return a;
+ if (a < 0)
+ return -1;
+ else
+ return 1;
+}
+
+static double js_math_round(double a)
+{
+ JSFloat64Union u;
+ uint64_t frac_mask, one;
+ unsigned int e, s;
+
+ u.d = a;
+ e = (u.u64 >> 52) & 0x7ff;
+ if (e < 1023) {
+ /* abs(a) < 1 */
+ if (e == (1023 - 1) && u.u64 != 0xbfe0000000000000) {
+ /* abs(a) > 0.5 or a = 0.5: return +/-1.0 */
+ u.u64 = (u.u64 & ((uint64_t)1 << 63)) | ((uint64_t)1023 << 52);
+ } else {
+ /* return +/-0.0 */
+ u.u64 &= (uint64_t)1 << 63;
+ }
+ } else if (e < (1023 + 52)) {
+ s = u.u64 >> 63;
+ one = (uint64_t)1 << (52 - (e - 1023));
+ frac_mask = one - 1;
+ u.u64 += (one >> 1) - s;
+ u.u64 &= ~frac_mask; /* truncate to an integer */
+ }
+ /* otherwise: abs(a) >= 2^52, or NaN, +/-Infinity: no change */
+ return u.d;
+}
+
+static JSValue js_math_hypot(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ double r, a;
+ int i;
+
+ r = 0;
+ if (argc > 0) {
+ if (JS_ToFloat64(ctx, &r, argv[0]))
+ return JS_EXCEPTION;
+ if (argc == 1) {
+ r = fabs(r);
+ } else {
+ /* use the built-in function to minimize precision loss */
+ for (i = 1; i < argc; i++) {
+ if (JS_ToFloat64(ctx, &a, argv[i]))
+ return JS_EXCEPTION;
+ r = hypot(r, a);
+ }
+ }
+ }
+ return JS_NewFloat64(ctx, r);
+}
+
+static double js_math_fround(double a)
+{
+ return (float)a;
+}
+
+static JSValue js_math_imul(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ uint32_t a, b, c;
+ int32_t d;
+
+ if (JS_ToUint32(ctx, &a, argv[0]))
+ return JS_EXCEPTION;
+ if (JS_ToUint32(ctx, &b, argv[1]))
+ return JS_EXCEPTION;
+ c = a * b;
+ memcpy(&d, &c, sizeof(d));
+ return JS_NewInt32(ctx, d);
+}
+
+static JSValue js_math_clz32(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ uint32_t a, r;
+
+ if (JS_ToUint32(ctx, &a, argv[0]))
+ return JS_EXCEPTION;
+ if (a == 0)
+ r = 32;
+ else
+ r = clz32(a);
+ return JS_NewInt32(ctx, r);
+}
+
+/* xorshift* random number generator by Marsaglia */
+static uint64_t xorshift64star(uint64_t *pstate)
+{
+ uint64_t x;
+ x = *pstate;
+ x ^= x >> 12;
+ x ^= x << 25;
+ x ^= x >> 27;
+ *pstate = x;
+ return x * 0x2545F4914F6CDD1D;
+}
+
+static void js_random_init(JSContext *ctx)
+{
+ struct timeval tv;
+ gettimeofday(&tv, NULL);
+ ctx->random_state = ((int64_t)tv.tv_sec * 1000000) + tv.tv_usec;
+ /* the state must be non zero */
+ if (ctx->random_state == 0)
+ ctx->random_state = 1;
+}
+
+static JSValue js_math_random(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSFloat64Union u;
+ uint64_t v;
+
+ v = xorshift64star(&ctx->random_state);
+ /* 1.0 <= u.d < 2 */
+ u.u64 = ((uint64_t)0x3ff << 52) | (v >> 12);
+ return __JS_NewFloat64(ctx, u.d - 1.0);
+}
+
+static const JSCFunctionListEntry js_math_funcs[] = {
+ JS_CFUNC_MAGIC_DEF("min", 2, js_math_min_max, 0 ),
+ JS_CFUNC_MAGIC_DEF("max", 2, js_math_min_max, 1 ),
+ JS_CFUNC_SPECIAL_DEF("abs", 1, f_f, fabs ),
+ JS_CFUNC_SPECIAL_DEF("floor", 1, f_f, floor ),
+ JS_CFUNC_SPECIAL_DEF("ceil", 1, f_f, ceil ),
+ JS_CFUNC_SPECIAL_DEF("round", 1, f_f, js_math_round ),
+ JS_CFUNC_SPECIAL_DEF("sqrt", 1, f_f, sqrt ),
+
+ JS_CFUNC_SPECIAL_DEF("acos", 1, f_f, acos ),
+ JS_CFUNC_SPECIAL_DEF("asin", 1, f_f, asin ),
+ JS_CFUNC_SPECIAL_DEF("atan", 1, f_f, atan ),
+ JS_CFUNC_SPECIAL_DEF("atan2", 2, f_f_f, atan2 ),
+ JS_CFUNC_SPECIAL_DEF("cos", 1, f_f, cos ),
+ JS_CFUNC_SPECIAL_DEF("exp", 1, f_f, exp ),
+ JS_CFUNC_SPECIAL_DEF("log", 1, f_f, log ),
+ JS_CFUNC_SPECIAL_DEF("pow", 2, f_f_f, js_pow ),
+ JS_CFUNC_SPECIAL_DEF("sin", 1, f_f, sin ),
+ JS_CFUNC_SPECIAL_DEF("tan", 1, f_f, tan ),
+ /* ES6 */
+ JS_CFUNC_SPECIAL_DEF("trunc", 1, f_f, trunc ),
+ JS_CFUNC_SPECIAL_DEF("sign", 1, f_f, js_math_sign ),
+ JS_CFUNC_SPECIAL_DEF("cosh", 1, f_f, cosh ),
+ JS_CFUNC_SPECIAL_DEF("sinh", 1, f_f, sinh ),
+ JS_CFUNC_SPECIAL_DEF("tanh", 1, f_f, tanh ),
+ JS_CFUNC_SPECIAL_DEF("acosh", 1, f_f, acosh ),
+ JS_CFUNC_SPECIAL_DEF("asinh", 1, f_f, asinh ),
+ JS_CFUNC_SPECIAL_DEF("atanh", 1, f_f, atanh ),
+ JS_CFUNC_SPECIAL_DEF("expm1", 1, f_f, expm1 ),
+ JS_CFUNC_SPECIAL_DEF("log1p", 1, f_f, log1p ),
+ JS_CFUNC_SPECIAL_DEF("log2", 1, f_f, log2 ),
+ JS_CFUNC_SPECIAL_DEF("log10", 1, f_f, log10 ),
+ JS_CFUNC_SPECIAL_DEF("cbrt", 1, f_f, cbrt ),
+ JS_CFUNC_DEF("hypot", 2, js_math_hypot ),
+ JS_CFUNC_DEF("random", 0, js_math_random ),
+ JS_CFUNC_SPECIAL_DEF("fround", 1, f_f, js_math_fround ),
+ JS_CFUNC_DEF("imul", 2, js_math_imul ),
+ JS_CFUNC_DEF("clz32", 1, js_math_clz32 ),
+ JS_PROP_STRING_DEF("[Symbol.toStringTag]", "Math", JS_PROP_CONFIGURABLE ),
+ JS_PROP_DOUBLE_DEF("E", 2.718281828459045, 0 ),
+ JS_PROP_DOUBLE_DEF("LN10", 2.302585092994046, 0 ),
+ JS_PROP_DOUBLE_DEF("LN2", 0.6931471805599453, 0 ),
+ JS_PROP_DOUBLE_DEF("LOG2E", 1.4426950408889634, 0 ),
+ JS_PROP_DOUBLE_DEF("LOG10E", 0.4342944819032518, 0 ),
+ JS_PROP_DOUBLE_DEF("PI", 3.141592653589793, 0 ),
+ JS_PROP_DOUBLE_DEF("SQRT1_2", 0.7071067811865476, 0 ),
+ JS_PROP_DOUBLE_DEF("SQRT2", 1.4142135623730951, 0 ),
+};
+
+static const JSCFunctionListEntry js_math_obj[] = {
+ JS_OBJECT_DEF("Math", js_math_funcs, countof(js_math_funcs), JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE ),
+};
+
+/* Date */
+
+/* OS dependent. d = argv[0] is in ms from 1970. Return the difference
+ between UTC time and local time 'd' in minutes */
+static int getTimezoneOffset(int64_t time)
+{
+ time_t ti;
+ int res;
+
+ time /= 1000; /* convert to seconds */
+ if (sizeof(time_t) == 4) {
+ /* on 32-bit systems, we need to clamp the time value to the
+ range of `time_t`. This is better than truncating values to
+ 32 bits and hopefully provides the same result as 64-bit
+ implementation of localtime_r.
+ */
+ if ((time_t)-1 < 0) {
+ if (time < INT32_MIN) {
+ time = INT32_MIN;
+ } else if (time > INT32_MAX) {
+ time = INT32_MAX;
+ }
+ } else {
+ if (time < 0) {
+ time = 0;
+ } else if (time > UINT32_MAX) {
+ time = UINT32_MAX;
+ }
+ }
+ }
+ ti = time;
+#if defined(_WIN32)
+ {
+ struct tm *tm;
+ time_t gm_ti, loc_ti;
+
+ tm = gmtime(&ti);
+ gm_ti = mktime(tm);
+
+ tm = localtime(&ti);
+ loc_ti = mktime(tm);
+
+ res = (gm_ti - loc_ti) / 60;
+ }
+#else
+ {
+ struct tm tm;
+ localtime_r(&ti, &tm);
+ res = -tm.tm_gmtoff / 60;
+ }
+#endif
+ return res;
+}
+
+#if 0
+static JSValue js___date_getTimezoneOffset(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ double dd;
+
+ if (JS_ToFloat64(ctx, &dd, argv[0]))
+ return JS_EXCEPTION;
+ if (isnan(dd))
+ return __JS_NewFloat64(ctx, dd);
+ else
+ return JS_NewInt32(ctx, getTimezoneOffset((int64_t)dd));
+}
+
+static JSValue js_get_prototype_from_ctor(JSContext *ctx, JSValueConst ctor,
+ JSValueConst def_proto)
+{
+ JSValue proto;
+ proto = JS_GetProperty(ctx, ctor, JS_ATOM_prototype);
+ if (JS_IsException(proto))
+ return proto;
+ if (!JS_IsObject(proto)) {
+ JS_FreeValue(ctx, proto);
+ proto = JS_DupValue(ctx, def_proto);
+ }
+ return proto;
+}
+
+/* create a new date object */
+static JSValue js___date_create(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValue obj, proto;
+ proto = js_get_prototype_from_ctor(ctx, argv[0], argv[1]);
+ if (JS_IsException(proto))
+ return proto;
+ obj = JS_NewObjectProtoClass(ctx, proto, JS_CLASS_DATE);
+ JS_FreeValue(ctx, proto);
+ if (!JS_IsException(obj))
+ JS_SetObjectData(ctx, obj, JS_DupValue(ctx, argv[2]));
+ return obj;
+}
+#endif
+
+/* RegExp */
+
+static void js_regexp_finalizer(JSRuntime *rt, JSValue val)
+{
+ JSObject *p = JS_VALUE_GET_OBJ(val);
+ JSRegExp *re = &p->u.regexp;
+ JS_FreeValueRT(rt, JS_MKPTR(JS_TAG_STRING, re->bytecode));
+ JS_FreeValueRT(rt, JS_MKPTR(JS_TAG_STRING, re->pattern));
+}
+
+/* create a string containing the RegExp bytecode */
+static JSValue js_compile_regexp(JSContext *ctx, JSValueConst pattern,
+ JSValueConst flags)
+{
+ const char *str;
+ int re_flags, mask;
+ uint8_t *re_bytecode_buf;
+ size_t i, len;
+ int re_bytecode_len;
+ JSValue ret;
+ char error_msg[64];
+
+ re_flags = 0;
+ if (!JS_IsUndefined(flags)) {
+ str = JS_ToCStringLen(ctx, &len, flags);
+ if (!str)
+ return JS_EXCEPTION;
+ /* XXX: re_flags = LRE_FLAG_OCTAL unless strict mode? */
+ for (i = 0; i < len; i++) {
+ switch(str[i]) {
+ case 'd':
+ mask = LRE_FLAG_INDICES;
+ break;
+ case 'g':
+ mask = LRE_FLAG_GLOBAL;
+ break;
+ case 'i':
+ mask = LRE_FLAG_IGNORECASE;
+ break;
+ case 'm':
+ mask = LRE_FLAG_MULTILINE;
+ break;
+ case 's':
+ mask = LRE_FLAG_DOTALL;
+ break;
+ case 'u':
+ mask = LRE_FLAG_UNICODE;
+ break;
+ case 'y':
+ mask = LRE_FLAG_STICKY;
+ break;
+ default:
+ goto bad_flags;
+ }
+ if ((re_flags & mask) != 0) {
+ bad_flags:
+ JS_FreeCString(ctx, str);
+ return JS_ThrowSyntaxError(ctx, "invalid regular expression flags");
+ }
+ re_flags |= mask;
+ }
+ JS_FreeCString(ctx, str);
+ }
+
+ str = JS_ToCStringLen2(ctx, &len, pattern, !(re_flags & LRE_FLAG_UNICODE));
+ if (!str)
+ return JS_EXCEPTION;
+ re_bytecode_buf = lre_compile(&re_bytecode_len, error_msg,
+ sizeof(error_msg), str, len, re_flags, ctx);
+ JS_FreeCString(ctx, str);
+ if (!re_bytecode_buf) {
+ JS_ThrowSyntaxError(ctx, "%s", error_msg);
+ return JS_EXCEPTION;
+ }
+
+ ret = js_new_string8(ctx, re_bytecode_buf, re_bytecode_len);
+ js_free(ctx, re_bytecode_buf);
+ return ret;
+}
+
+/* create a RegExp object from a string containing the RegExp bytecode
+ and the source pattern */
+static JSValue js_regexp_constructor_internal(JSContext *ctx, JSValueConst ctor,
+ JSValue pattern, JSValue bc)
+{
+ JSValue obj;
+ JSObject *p;
+ JSRegExp *re;
+
+ /* sanity check */
+ if (JS_VALUE_GET_TAG(bc) != JS_TAG_STRING ||
+ JS_VALUE_GET_TAG(pattern) != JS_TAG_STRING) {
+ JS_ThrowTypeError(ctx, "string expected");
+ fail:
+ JS_FreeValue(ctx, bc);
+ JS_FreeValue(ctx, pattern);
+ return JS_EXCEPTION;
+ }
+
+ obj = js_create_from_ctor(ctx, ctor, JS_CLASS_REGEXP);
+ if (JS_IsException(obj))
+ goto fail;
+ p = JS_VALUE_GET_OBJ(obj);
+ re = &p->u.regexp;
+ re->pattern = JS_VALUE_GET_STRING(pattern);
+ re->bytecode = JS_VALUE_GET_STRING(bc);
+ JS_DefinePropertyValue(ctx, obj, JS_ATOM_lastIndex, JS_NewInt32(ctx, 0),
+ JS_PROP_WRITABLE);
+ return obj;
+}
+
+static JSRegExp *js_get_regexp(JSContext *ctx, JSValueConst obj, BOOL throw_error)
+{
+ if (JS_VALUE_GET_TAG(obj) == JS_TAG_OBJECT) {
+ JSObject *p = JS_VALUE_GET_OBJ(obj);
+ if (p->class_id == JS_CLASS_REGEXP)
+ return &p->u.regexp;
+ }
+ if (throw_error) {
+ JS_ThrowTypeErrorInvalidClass(ctx, JS_CLASS_REGEXP);
+ }
+ return NULL;
+}
+
+/* return < 0 if exception or TRUE/FALSE */
+static int js_is_regexp(JSContext *ctx, JSValueConst obj)
+{
+ JSValue m;
+
+ if (!JS_IsObject(obj))
+ return FALSE;
+ m = JS_GetProperty(ctx, obj, JS_ATOM_Symbol_match);
+ if (JS_IsException(m))
+ return -1;
+ if (!JS_IsUndefined(m))
+ return JS_ToBoolFree(ctx, m);
+ return js_get_regexp(ctx, obj, FALSE) != NULL;
+}
+
+static JSValue js_regexp_constructor(JSContext *ctx, JSValueConst new_target,
+ int argc, JSValueConst *argv)
+{
+ JSValue pattern, flags, bc, val;
+ JSValueConst pat, flags1;
+ JSRegExp *re;
+ int pat_is_regexp;
+
+ pat = argv[0];
+ flags1 = argv[1];
+ pat_is_regexp = js_is_regexp(ctx, pat);
+ if (pat_is_regexp < 0)
+ return JS_EXCEPTION;
+ if (JS_IsUndefined(new_target)) {
+ /* called as a function */
+ new_target = JS_GetActiveFunction(ctx);
+ if (pat_is_regexp && JS_IsUndefined(flags1)) {
+ JSValue ctor;
+ BOOL res;
+ ctor = JS_GetProperty(ctx, pat, JS_ATOM_constructor);
+ if (JS_IsException(ctor))
+ return ctor;
+ res = js_same_value(ctx, ctor, new_target);
+ JS_FreeValue(ctx, ctor);
+ if (res)
+ return JS_DupValue(ctx, pat);
+ }
+ }
+ re = js_get_regexp(ctx, pat, FALSE);
+ if (re) {
+ pattern = JS_DupValue(ctx, JS_MKPTR(JS_TAG_STRING, re->pattern));
+ if (JS_IsUndefined(flags1)) {
+ bc = JS_DupValue(ctx, JS_MKPTR(JS_TAG_STRING, re->bytecode));
+ goto no_compilation;
+ } else {
+ flags = JS_ToString(ctx, flags1);
+ if (JS_IsException(flags))
+ goto fail;
+ }
+ } else {
+ flags = JS_UNDEFINED;
+ if (pat_is_regexp) {
+ pattern = JS_GetProperty(ctx, pat, JS_ATOM_source);
+ if (JS_IsException(pattern))
+ goto fail;
+ if (JS_IsUndefined(flags1)) {
+ flags = JS_GetProperty(ctx, pat, JS_ATOM_flags);
+ if (JS_IsException(flags))
+ goto fail;
+ } else {
+ flags = JS_DupValue(ctx, flags1);
+ }
+ } else {
+ pattern = JS_DupValue(ctx, pat);
+ flags = JS_DupValue(ctx, flags1);
+ }
+ if (JS_IsUndefined(pattern)) {
+ pattern = JS_AtomToString(ctx, JS_ATOM_empty_string);
+ } else {
+ val = pattern;
+ pattern = JS_ToString(ctx, val);
+ JS_FreeValue(ctx, val);
+ if (JS_IsException(pattern))
+ goto fail;
+ }
+ }
+ bc = js_compile_regexp(ctx, pattern, flags);
+ if (JS_IsException(bc))
+ goto fail;
+ JS_FreeValue(ctx, flags);
+ no_compilation:
+ return js_regexp_constructor_internal(ctx, new_target, pattern, bc);
+ fail:
+ JS_FreeValue(ctx, pattern);
+ JS_FreeValue(ctx, flags);
+ return JS_EXCEPTION;
+}
+
+static JSValue js_regexp_compile(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSRegExp *re1, *re;
+ JSValueConst pattern1, flags1;
+ JSValue bc, pattern;
+
+ re = js_get_regexp(ctx, this_val, TRUE);
+ if (!re)
+ return JS_EXCEPTION;
+ pattern1 = argv[0];
+ flags1 = argv[1];
+ re1 = js_get_regexp(ctx, pattern1, FALSE);
+ if (re1) {
+ if (!JS_IsUndefined(flags1))
+ return JS_ThrowTypeError(ctx, "flags must be undefined");
+ pattern = JS_DupValue(ctx, JS_MKPTR(JS_TAG_STRING, re1->pattern));
+ bc = JS_DupValue(ctx, JS_MKPTR(JS_TAG_STRING, re1->bytecode));
+ } else {
+ bc = JS_UNDEFINED;
+ if (JS_IsUndefined(pattern1))
+ pattern = JS_AtomToString(ctx, JS_ATOM_empty_string);
+ else
+ pattern = JS_ToString(ctx, pattern1);
+ if (JS_IsException(pattern))
+ goto fail;
+ bc = js_compile_regexp(ctx, pattern, flags1);
+ if (JS_IsException(bc))
+ goto fail;
+ }
+ JS_FreeValue(ctx, JS_MKPTR(JS_TAG_STRING, re->pattern));
+ JS_FreeValue(ctx, JS_MKPTR(JS_TAG_STRING, re->bytecode));
+ re->pattern = JS_VALUE_GET_STRING(pattern);
+ re->bytecode = JS_VALUE_GET_STRING(bc);
+ if (JS_SetProperty(ctx, this_val, JS_ATOM_lastIndex,
+ JS_NewInt32(ctx, 0)) < 0)
+ return JS_EXCEPTION;
+ return JS_DupValue(ctx, this_val);
+ fail:
+ JS_FreeValue(ctx, pattern);
+ JS_FreeValue(ctx, bc);
+ return JS_EXCEPTION;
+}
+
+#if 0
+static JSValue js_regexp_get___source(JSContext *ctx, JSValueConst this_val)
+{
+ JSRegExp *re = js_get_regexp(ctx, this_val, TRUE);
+ if (!re)
+ return JS_EXCEPTION;
+ return JS_DupValue(ctx, JS_MKPTR(JS_TAG_STRING, re->pattern));
+}
+
+static JSValue js_regexp_get___flags(JSContext *ctx, JSValueConst this_val)
+{
+ JSRegExp *re = js_get_regexp(ctx, this_val, TRUE);
+ int flags;
+
+ if (!re)
+ return JS_EXCEPTION;
+ flags = lre_get_flags(re->bytecode->u.str8);
+ return JS_NewInt32(ctx, flags);
+}
+#endif
+
+static JSValue js_regexp_get_source(JSContext *ctx, JSValueConst this_val)
+{
+ JSRegExp *re;
+ JSString *p;
+ StringBuffer b_s, *b = &b_s;
+ int i, n, c, c2, bra;
+
+ if (JS_VALUE_GET_TAG(this_val) != JS_TAG_OBJECT)
+ return JS_ThrowTypeErrorNotAnObject(ctx);
+
+ if (js_same_value(ctx, this_val, ctx->class_proto[JS_CLASS_REGEXP]))
+ goto empty_regex;
+
+ re = js_get_regexp(ctx, this_val, TRUE);
+ if (!re)
+ return JS_EXCEPTION;
+
+ p = re->pattern;
+
+ if (p->len == 0) {
+ empty_regex:
+ return JS_NewString(ctx, "(?:)");
+ }
+ string_buffer_init2(ctx, b, p->len, p->is_wide_char);
+
+ /* Escape '/' and newline sequences as needed */
+ bra = 0;
+ for (i = 0, n = p->len; i < n;) {
+ c2 = -1;
+ switch (c = string_get(p, i++)) {
+ case '\\':
+ if (i < n)
+ c2 = string_get(p, i++);
+ break;
+ case ']':
+ bra = 0;
+ break;
+ case '[':
+ if (!bra) {
+ if (i < n && string_get(p, i) == ']')
+ c2 = string_get(p, i++);
+ bra = 1;
+ }
+ break;
+ case '\n':
+ c = '\\';
+ c2 = 'n';
+ break;
+ case '\r':
+ c = '\\';
+ c2 = 'r';
+ break;
+ case '/':
+ if (!bra) {
+ c = '\\';
+ c2 = '/';
+ }
+ break;
+ }
+ string_buffer_putc16(b, c);
+ if (c2 >= 0)
+ string_buffer_putc16(b, c2);
+ }
+ return string_buffer_end(b);
+}
+
+static JSValue js_regexp_get_flag(JSContext *ctx, JSValueConst this_val, int mask)
+{
+ JSRegExp *re;
+ int flags;
+
+ if (JS_VALUE_GET_TAG(this_val) != JS_TAG_OBJECT)
+ return JS_ThrowTypeErrorNotAnObject(ctx);
+
+ re = js_get_regexp(ctx, this_val, FALSE);
+ if (!re) {
+ if (js_same_value(ctx, this_val, ctx->class_proto[JS_CLASS_REGEXP]))
+ return JS_UNDEFINED;
+ else
+ return JS_ThrowTypeErrorInvalidClass(ctx, JS_CLASS_REGEXP);
+ }
+
+ flags = lre_get_flags(re->bytecode->u.str8);
+ return JS_NewBool(ctx, flags & mask);
+}
+
+static JSValue js_regexp_get_flags(JSContext *ctx, JSValueConst this_val)
+{
+ char str[8], *p = str;
+ int res;
+
+ if (JS_VALUE_GET_TAG(this_val) != JS_TAG_OBJECT)
+ return JS_ThrowTypeErrorNotAnObject(ctx);
+
+ res = JS_ToBoolFree(ctx, JS_GetPropertyStr(ctx, this_val, "hasIndices"));
+ if (res < 0)
+ goto exception;
+ if (res)
+ *p++ = 'd';
+ res = JS_ToBoolFree(ctx, JS_GetProperty(ctx, this_val, JS_ATOM_global));
+ if (res < 0)
+ goto exception;
+ if (res)
+ *p++ = 'g';
+ res = JS_ToBoolFree(ctx, JS_GetPropertyStr(ctx, this_val, "ignoreCase"));
+ if (res < 0)
+ goto exception;
+ if (res)
+ *p++ = 'i';
+ res = JS_ToBoolFree(ctx, JS_GetPropertyStr(ctx, this_val, "multiline"));
+ if (res < 0)
+ goto exception;
+ if (res)
+ *p++ = 'm';
+ res = JS_ToBoolFree(ctx, JS_GetPropertyStr(ctx, this_val, "dotAll"));
+ if (res < 0)
+ goto exception;
+ if (res)
+ *p++ = 's';
+ res = JS_ToBoolFree(ctx, JS_GetProperty(ctx, this_val, JS_ATOM_unicode));
+ if (res < 0)
+ goto exception;
+ if (res)
+ *p++ = 'u';
+ res = JS_ToBoolFree(ctx, JS_GetPropertyStr(ctx, this_val, "sticky"));
+ if (res < 0)
+ goto exception;
+ if (res)
+ *p++ = 'y';
+ return JS_NewStringLen(ctx, str, p - str);
+
+exception:
+ return JS_EXCEPTION;
+}
+
+static JSValue js_regexp_toString(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValue pattern, flags;
+ StringBuffer b_s, *b = &b_s;
+
+ if (!JS_IsObject(this_val))
+ return JS_ThrowTypeErrorNotAnObject(ctx);
+
+ string_buffer_init(ctx, b, 0);
+ string_buffer_putc8(b, '/');
+ pattern = JS_GetProperty(ctx, this_val, JS_ATOM_source);
+ if (string_buffer_concat_value_free(b, pattern))
+ goto fail;
+ string_buffer_putc8(b, '/');
+ flags = JS_GetProperty(ctx, this_val, JS_ATOM_flags);
+ if (string_buffer_concat_value_free(b, flags))
+ goto fail;
+ return string_buffer_end(b);
+
+fail:
+ string_buffer_free(b);
+ return JS_EXCEPTION;
+}
+
+BOOL lre_check_stack_overflow(void *opaque, size_t alloca_size)
+{
+ JSContext *ctx = opaque;
+ return js_check_stack_overflow(ctx->rt, alloca_size);
+}
+
+void *lre_realloc(void *opaque, void *ptr, size_t size)
+{
+ JSContext *ctx = opaque;
+ /* No JS exception is raised here */
+ return js_realloc_rt(ctx->rt, ptr, size);
+}
+
+static JSValue js_regexp_exec(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSRegExp *re = js_get_regexp(ctx, this_val, TRUE);
+ JSString *str;
+ JSValue t, ret, str_val, obj, val, groups;
+ JSValue indices, indices_groups;
+ uint8_t *re_bytecode;
+ uint8_t **capture, *str_buf;
+ int rc, capture_count, shift, i, re_flags;
+ int64_t last_index;
+ const char *group_name_ptr;
+
+ if (!re)
+ return JS_EXCEPTION;
+
+ str_val = JS_ToString(ctx, argv[0]);
+ if (JS_IsException(str_val))
+ return JS_EXCEPTION;
+
+ ret = JS_EXCEPTION;
+ obj = JS_NULL;
+ groups = JS_UNDEFINED;
+ indices = JS_UNDEFINED;
+ indices_groups = JS_UNDEFINED;
+ capture = NULL;
+
+ val = JS_GetProperty(ctx, this_val, JS_ATOM_lastIndex);
+ if (JS_IsException(val) || JS_ToLengthFree(ctx, &last_index, val))
+ goto fail;
+
+ re_bytecode = re->bytecode->u.str8;
+ re_flags = lre_get_flags(re_bytecode);
+ if ((re_flags & (LRE_FLAG_GLOBAL | LRE_FLAG_STICKY)) == 0) {
+ last_index = 0;
+ }
+ str = JS_VALUE_GET_STRING(str_val);
+ capture_count = lre_get_capture_count(re_bytecode);
+ if (capture_count > 0) {
+ capture = js_malloc(ctx, sizeof(capture[0]) * capture_count * 2);
+ if (!capture)
+ goto fail;
+ }
+ shift = str->is_wide_char;
+ str_buf = str->u.str8;
+ if (last_index > str->len) {
+ rc = 2;
+ } else {
+ rc = lre_exec(capture, re_bytecode,
+ str_buf, last_index, str->len,
+ shift, ctx);
+ }
+ if (rc != 1) {
+ if (rc >= 0) {
+ if (rc == 2 || (re_flags & (LRE_FLAG_GLOBAL | LRE_FLAG_STICKY))) {
+ if (JS_SetProperty(ctx, this_val, JS_ATOM_lastIndex,
+ JS_NewInt32(ctx, 0)) < 0)
+ goto fail;
+ }
+ } else {
+ JS_ThrowInternalError(ctx, "out of memory in regexp execution");
+ goto fail;
+ }
+ } else {
+ int prop_flags;
+ if (re_flags & (LRE_FLAG_GLOBAL | LRE_FLAG_STICKY)) {
+ if (JS_SetProperty(ctx, this_val, JS_ATOM_lastIndex,
+ JS_NewInt32(ctx, (capture[1] - str_buf) >> shift)) < 0)
+ goto fail;
+ }
+ obj = JS_NewArray(ctx);
+ if (JS_IsException(obj))
+ goto fail;
+ prop_flags = JS_PROP_C_W_E | JS_PROP_THROW;
+ group_name_ptr = lre_get_groupnames(re_bytecode);
+ if (group_name_ptr) {
+ groups = JS_NewObjectProto(ctx, JS_NULL);
+ if (JS_IsException(groups))
+ goto fail;
+ }
+ if (re_flags & LRE_FLAG_INDICES) {
+ indices = JS_NewArray(ctx);
+ if (JS_IsException(indices))
+ goto fail;
+ if (group_name_ptr) {
+ indices_groups = JS_NewObjectProto(ctx, JS_NULL);
+ if (JS_IsException(indices_groups))
+ goto fail;
+ }
+ }
+
+ for(i = 0; i < capture_count; i++) {
+ const char *name = NULL;
+ uint8_t **match = &capture[2 * i];
+ int start = -1;
+ int end = -1;
+ JSValue val;
+
+ if (group_name_ptr && i > 0) {
+ if (*group_name_ptr) name = group_name_ptr;
+ group_name_ptr += strlen(group_name_ptr) + 1;
+ }
+
+ if (match[0] && match[1]) {
+ start = (match[0] - str_buf) >> shift;
+ end = (match[1] - str_buf) >> shift;
+ }
+
+ if (!JS_IsUndefined(indices)) {
+ val = JS_UNDEFINED;
+ if (start != -1) {
+ val = JS_NewArray(ctx);
+ if (JS_IsException(val))
+ goto fail;
+ if (JS_DefinePropertyValueUint32(ctx, val, 0,
+ JS_NewInt32(ctx, start),
+ prop_flags) < 0) {
+ JS_FreeValue(ctx, val);
+ goto fail;
+ }
+ if (JS_DefinePropertyValueUint32(ctx, val, 1,
+ JS_NewInt32(ctx, end),
+ prop_flags) < 0) {
+ JS_FreeValue(ctx, val);
+ goto fail;
+ }
+ }
+ if (name && !JS_IsUndefined(indices_groups)) {
+ val = JS_DupValue(ctx, val);
+ if (JS_DefinePropertyValueStr(ctx, indices_groups,
+ name, val, prop_flags) < 0) {
+ JS_FreeValue(ctx, val);
+ goto fail;
+ }
+ }
+ if (JS_DefinePropertyValueUint32(ctx, indices, i, val,
+ prop_flags) < 0) {
+ goto fail;
+ }
+ }
+
+ val = JS_UNDEFINED;
+ if (start != -1) {
+ val = js_sub_string(ctx, str, start, end);
+ if (JS_IsException(val))
+ goto fail;
+ }
+
+ if (name) {
+ if (JS_DefinePropertyValueStr(ctx, groups, name,
+ JS_DupValue(ctx, val),
+ prop_flags) < 0) {
+ JS_FreeValue(ctx, val);
+ goto fail;
+ }
+ }
+
+ if (JS_DefinePropertyValueUint32(ctx, obj, i, val, prop_flags) < 0)
+ goto fail;
+ }
+
+ t = groups, groups = JS_UNDEFINED;
+ if (JS_DefinePropertyValue(ctx, obj, JS_ATOM_groups,
+ t, prop_flags) < 0) {
+ goto fail;
+ }
+
+ t = JS_NewInt32(ctx, (capture[0] - str_buf) >> shift);
+ if (JS_DefinePropertyValue(ctx, obj, JS_ATOM_index, t, prop_flags) < 0)
+ goto fail;
+
+ t = str_val, str_val = JS_UNDEFINED;
+ if (JS_DefinePropertyValue(ctx, obj, JS_ATOM_input, t, prop_flags) < 0)
+ goto fail;
+
+ if (!JS_IsUndefined(indices)) {
+ t = indices_groups, indices_groups = JS_UNDEFINED;
+ if (JS_DefinePropertyValue(ctx, indices, JS_ATOM_groups,
+ t, prop_flags) < 0) {
+ goto fail;
+ }
+ t = indices, indices = JS_UNDEFINED;
+ if (JS_DefinePropertyValue(ctx, obj, JS_ATOM_indices,
+ t, prop_flags) < 0) {
+ goto fail;
+ }
+ }
+ }
+ ret = obj;
+ obj = JS_UNDEFINED;
+fail:
+ JS_FreeValue(ctx, indices_groups);
+ JS_FreeValue(ctx, indices);
+ JS_FreeValue(ctx, str_val);
+ JS_FreeValue(ctx, groups);
+ JS_FreeValue(ctx, obj);
+ js_free(ctx, capture);
+ return ret;
+}
+
+/* delete portions of a string that match a given regex */
+static JSValue JS_RegExpDelete(JSContext *ctx, JSValueConst this_val, JSValueConst arg)
+{
+ JSRegExp *re = js_get_regexp(ctx, this_val, TRUE);
+ JSString *str;
+ JSValue str_val, val;
+ uint8_t *re_bytecode;
+ int ret;
+ uint8_t **capture, *str_buf;
+ int capture_count, shift, re_flags;
+ int next_src_pos, start, end;
+ int64_t last_index;
+ StringBuffer b_s, *b = &b_s;
+
+ if (!re)
+ return JS_EXCEPTION;
+
+ string_buffer_init(ctx, b, 0);
+
+ capture = NULL;
+ str_val = JS_ToString(ctx, arg);
+ if (JS_IsException(str_val))
+ goto fail;
+ str = JS_VALUE_GET_STRING(str_val);
+ re_bytecode = re->bytecode->u.str8;
+ re_flags = lre_get_flags(re_bytecode);
+ if ((re_flags & (LRE_FLAG_GLOBAL | LRE_FLAG_STICKY)) == 0) {
+ last_index = 0;
+ } else {
+ val = JS_GetProperty(ctx, this_val, JS_ATOM_lastIndex);
+ if (JS_IsException(val) || JS_ToLengthFree(ctx, &last_index, val))
+ goto fail;
+ }
+ capture_count = lre_get_capture_count(re_bytecode);
+ if (capture_count > 0) {
+ capture = js_malloc(ctx, sizeof(capture[0]) * capture_count * 2);
+ if (!capture)
+ goto fail;
+ }
+ shift = str->is_wide_char;
+ str_buf = str->u.str8;
+ next_src_pos = 0;
+ for (;;) {
+ if (last_index > str->len)
+ break;
+
+ ret = lre_exec(capture, re_bytecode,
+ str_buf, last_index, str->len, shift, ctx);
+ if (ret != 1) {
+ if (ret >= 0) {
+ if (ret == 2 || (re_flags & (LRE_FLAG_GLOBAL | LRE_FLAG_STICKY))) {
+ if (JS_SetProperty(ctx, this_val, JS_ATOM_lastIndex,
+ JS_NewInt32(ctx, 0)) < 0)
+ goto fail;
+ }
+ } else {
+ JS_ThrowInternalError(ctx, "out of memory in regexp execution");
+ goto fail;
+ }
+ break;
+ }
+ start = (capture[0] - str_buf) >> shift;
+ end = (capture[1] - str_buf) >> shift;
+ last_index = end;
+ if (next_src_pos < start) {
+ if (string_buffer_concat(b, str, next_src_pos, start))
+ goto fail;
+ }
+ next_src_pos = end;
+ if (!(re_flags & LRE_FLAG_GLOBAL)) {
+ if (JS_SetProperty(ctx, this_val, JS_ATOM_lastIndex,
+ JS_NewInt32(ctx, end)) < 0)
+ goto fail;
+ break;
+ }
+ if (end == start) {
+ if (!(re_flags & LRE_FLAG_UNICODE) || (unsigned)end >= str->len || !str->is_wide_char) {
+ end++;
+ } else {
+ string_getc(str, &end);
+ }
+ }
+ last_index = end;
+ }
+ if (string_buffer_concat(b, str, next_src_pos, str->len))
+ goto fail;
+ JS_FreeValue(ctx, str_val);
+ js_free(ctx, capture);
+ return string_buffer_end(b);
+fail:
+ JS_FreeValue(ctx, str_val);
+ js_free(ctx, capture);
+ string_buffer_free(b);
+ return JS_EXCEPTION;
+}
+
+static JSValue JS_RegExpExec(JSContext *ctx, JSValueConst r, JSValueConst s)
+{
+ JSValue method, ret;
+
+ method = JS_GetProperty(ctx, r, JS_ATOM_exec);
+ if (JS_IsException(method))
+ return method;
+ if (JS_IsFunction(ctx, method)) {
+ ret = JS_CallFree(ctx, method, r, 1, &s);
+ if (JS_IsException(ret))
+ return ret;
+ if (!JS_IsObject(ret) && !JS_IsNull(ret)) {
+ JS_FreeValue(ctx, ret);
+ return JS_ThrowTypeError(ctx, "RegExp exec method must return an object or null");
+ }
+ return ret;
+ }
+ JS_FreeValue(ctx, method);
+ return js_regexp_exec(ctx, r, 1, &s);
+}
+
+#if 0
+static JSValue js_regexp___RegExpExec(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ return JS_RegExpExec(ctx, argv[0], argv[1]);
+}
+static JSValue js_regexp___RegExpDelete(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ return JS_RegExpDelete(ctx, argv[0], argv[1]);
+}
+#endif
+
+static JSValue js_regexp_test(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValue val;
+ BOOL ret;
+
+ val = JS_RegExpExec(ctx, this_val, argv[0]);
+ if (JS_IsException(val))
+ return JS_EXCEPTION;
+ ret = !JS_IsNull(val);
+ JS_FreeValue(ctx, val);
+ return JS_NewBool(ctx, ret);
+}
+
+static JSValue js_regexp_Symbol_match(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ // [Symbol.match](str)
+ JSValueConst rx = this_val;
+ JSValue A, S, flags, result, matchStr;
+ int global, n, fullUnicode, isEmpty;
+ JSString *p;
+
+ if (!JS_IsObject(rx))
+ return JS_ThrowTypeErrorNotAnObject(ctx);
+
+ A = JS_UNDEFINED;
+ flags = JS_UNDEFINED;
+ result = JS_UNDEFINED;
+ matchStr = JS_UNDEFINED;
+ S = JS_ToString(ctx, argv[0]);
+ if (JS_IsException(S))
+ goto exception;
+
+ flags = JS_GetProperty(ctx, rx, JS_ATOM_flags);
+ if (JS_IsException(flags))
+ goto exception;
+ flags = JS_ToStringFree(ctx, flags);
+ if (JS_IsException(flags))
+ goto exception;
+ p = JS_VALUE_GET_STRING(flags);
+
+ // TODO(bnoordhuis) query 'u' flag the same way?
+ global = (-1 != string_indexof_char(p, 'g', 0));
+ if (!global) {
+ A = JS_RegExpExec(ctx, rx, S);
+ } else {
+ fullUnicode = JS_ToBoolFree(ctx, JS_GetProperty(ctx, rx, JS_ATOM_unicode));
+ if (fullUnicode < 0)
+ goto exception;
+
+ if (JS_SetProperty(ctx, rx, JS_ATOM_lastIndex, JS_NewInt32(ctx, 0)) < 0)
+ goto exception;
+ A = JS_NewArray(ctx);
+ if (JS_IsException(A))
+ goto exception;
+ n = 0;
+ for(;;) {
+ JS_FreeValue(ctx, result);
+ result = JS_RegExpExec(ctx, rx, S);
+ if (JS_IsException(result))
+ goto exception;
+ if (JS_IsNull(result))
+ break;
+ matchStr = JS_ToStringFree(ctx, JS_GetPropertyInt64(ctx, result, 0));
+ if (JS_IsException(matchStr))
+ goto exception;
+ isEmpty = JS_IsEmptyString(matchStr);
+ if (JS_SetPropertyInt64(ctx, A, n++, matchStr) < 0)
+ goto exception;
+ if (isEmpty) {
+ int64_t thisIndex, nextIndex;
+ if (JS_ToLengthFree(ctx, &thisIndex,
+ JS_GetProperty(ctx, rx, JS_ATOM_lastIndex)) < 0)
+ goto exception;
+ p = JS_VALUE_GET_STRING(S);
+ nextIndex = string_advance_index(p, thisIndex, fullUnicode);
+ if (JS_SetProperty(ctx, rx, JS_ATOM_lastIndex, JS_NewInt64(ctx, nextIndex)) < 0)
+ goto exception;
+ }
+ }
+ if (n == 0) {
+ JS_FreeValue(ctx, A);
+ A = JS_NULL;
+ }
+ }
+ JS_FreeValue(ctx, result);
+ JS_FreeValue(ctx, flags);
+ JS_FreeValue(ctx, S);
+ return A;
+
+exception:
+ JS_FreeValue(ctx, A);
+ JS_FreeValue(ctx, result);
+ JS_FreeValue(ctx, flags);
+ JS_FreeValue(ctx, S);
+ return JS_EXCEPTION;
+}
+
+typedef struct JSRegExpStringIteratorData {
+ JSValue iterating_regexp;
+ JSValue iterated_string;
+ BOOL global;
+ BOOL unicode;
+ BOOL done;
+} JSRegExpStringIteratorData;
+
+static void js_regexp_string_iterator_finalizer(JSRuntime *rt, JSValue val)
+{
+ JSObject *p = JS_VALUE_GET_OBJ(val);
+ JSRegExpStringIteratorData *it = p->u.regexp_string_iterator_data;
+ if (it) {
+ JS_FreeValueRT(rt, it->iterating_regexp);
+ JS_FreeValueRT(rt, it->iterated_string);
+ js_free_rt(rt, it);
+ }
+}
+
+static void js_regexp_string_iterator_mark(JSRuntime *rt, JSValueConst val,
+ JS_MarkFunc *mark_func)
+{
+ JSObject *p = JS_VALUE_GET_OBJ(val);
+ JSRegExpStringIteratorData *it = p->u.regexp_string_iterator_data;
+ if (it) {
+ JS_MarkValue(rt, it->iterating_regexp, mark_func);
+ JS_MarkValue(rt, it->iterated_string, mark_func);
+ }
+}
+
+static JSValue js_regexp_string_iterator_next(JSContext *ctx,
+ JSValueConst this_val,
+ int argc, JSValueConst *argv,
+ BOOL *pdone, int magic)
+{
+ JSRegExpStringIteratorData *it;
+ JSValueConst R, S;
+ JSValue matchStr = JS_UNDEFINED, match = JS_UNDEFINED;
+ JSString *sp;
+
+ it = JS_GetOpaque2(ctx, this_val, JS_CLASS_REGEXP_STRING_ITERATOR);
+ if (!it)
+ goto exception;
+ if (it->done) {
+ *pdone = TRUE;
+ return JS_UNDEFINED;
+ }
+ R = it->iterating_regexp;
+ S = it->iterated_string;
+ match = JS_RegExpExec(ctx, R, S);
+ if (JS_IsException(match))
+ goto exception;
+ if (JS_IsNull(match)) {
+ it->done = TRUE;
+ *pdone = TRUE;
+ return JS_UNDEFINED;
+ } else if (it->global) {
+ matchStr = JS_ToStringFree(ctx, JS_GetPropertyInt64(ctx, match, 0));
+ if (JS_IsException(matchStr))
+ goto exception;
+ if (JS_IsEmptyString(matchStr)) {
+ int64_t thisIndex, nextIndex;
+ if (JS_ToLengthFree(ctx, &thisIndex,
+ JS_GetProperty(ctx, R, JS_ATOM_lastIndex)) < 0)
+ goto exception;
+ sp = JS_VALUE_GET_STRING(S);
+ nextIndex = string_advance_index(sp, thisIndex, it->unicode);
+ if (JS_SetProperty(ctx, R, JS_ATOM_lastIndex,
+ JS_NewInt64(ctx, nextIndex)) < 0)
+ goto exception;
+ }
+ JS_FreeValue(ctx, matchStr);
+ } else {
+ it->done = TRUE;
+ }
+ *pdone = FALSE;
+ return match;
+ exception:
+ JS_FreeValue(ctx, match);
+ JS_FreeValue(ctx, matchStr);
+ *pdone = FALSE;
+ return JS_EXCEPTION;
+}
+
+static JSValue js_regexp_Symbol_matchAll(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ // [Symbol.matchAll](str)
+ JSValueConst R = this_val;
+ JSValue S, C, flags, matcher, iter;
+ JSValueConst args[2];
+ JSString *strp;
+ int64_t lastIndex;
+ JSRegExpStringIteratorData *it;
+
+ if (!JS_IsObject(R))
+ return JS_ThrowTypeErrorNotAnObject(ctx);
+
+ C = JS_UNDEFINED;
+ flags = JS_UNDEFINED;
+ matcher = JS_UNDEFINED;
+ iter = JS_UNDEFINED;
+
+ S = JS_ToString(ctx, argv[0]);
+ if (JS_IsException(S))
+ goto exception;
+ C = JS_SpeciesConstructor(ctx, R, ctx->regexp_ctor);
+ if (JS_IsException(C))
+ goto exception;
+ flags = JS_ToStringFree(ctx, JS_GetProperty(ctx, R, JS_ATOM_flags));
+ if (JS_IsException(flags))
+ goto exception;
+ args[0] = R;
+ args[1] = flags;
+ matcher = JS_CallConstructor(ctx, C, 2, args);
+ if (JS_IsException(matcher))
+ goto exception;
+ if (JS_ToLengthFree(ctx, &lastIndex,
+ JS_GetProperty(ctx, R, JS_ATOM_lastIndex)))
+ goto exception;
+ if (JS_SetProperty(ctx, matcher, JS_ATOM_lastIndex,
+ JS_NewInt64(ctx, lastIndex)) < 0)
+ goto exception;
+
+ iter = JS_NewObjectClass(ctx, JS_CLASS_REGEXP_STRING_ITERATOR);
+ if (JS_IsException(iter))
+ goto exception;
+ it = js_malloc(ctx, sizeof(*it));
+ if (!it)
+ goto exception;
+ it->iterating_regexp = matcher;
+ it->iterated_string = S;
+ strp = JS_VALUE_GET_STRING(flags);
+ it->global = string_indexof_char(strp, 'g', 0) >= 0;
+ it->unicode = string_indexof_char(strp, 'u', 0) >= 0;
+ it->done = FALSE;
+ JS_SetOpaque(iter, it);
+
+ JS_FreeValue(ctx, C);
+ JS_FreeValue(ctx, flags);
+ return iter;
+ exception:
+ JS_FreeValue(ctx, S);
+ JS_FreeValue(ctx, C);
+ JS_FreeValue(ctx, flags);
+ JS_FreeValue(ctx, matcher);
+ JS_FreeValue(ctx, iter);
+ return JS_EXCEPTION;
+}
+
+typedef struct ValueBuffer {
+ JSContext *ctx;
+ JSValue *arr;
+ JSValue def[4];
+ int len;
+ int size;
+ int error_status;
+} ValueBuffer;
+
+static int value_buffer_init(JSContext *ctx, ValueBuffer *b)
+{
+ b->ctx = ctx;
+ b->len = 0;
+ b->size = 4;
+ b->error_status = 0;
+ b->arr = b->def;
+ return 0;
+}
+
+static void value_buffer_free(ValueBuffer *b)
+{
+ while (b->len > 0)
+ JS_FreeValue(b->ctx, b->arr[--b->len]);
+ if (b->arr != b->def)
+ js_free(b->ctx, b->arr);
+ b->arr = b->def;
+ b->size = 4;
+}
+
+static int value_buffer_append(ValueBuffer *b, JSValue val)
+{
+ if (b->error_status)
+ return -1;
+
+ if (b->len >= b->size) {
+ int new_size = (b->len + (b->len >> 1) + 31) & ~16;
+ size_t slack;
+ JSValue *new_arr;
+
+ if (b->arr == b->def) {
+ new_arr = js_realloc2(b->ctx, NULL, sizeof(*b->arr) * new_size, &slack);
+ if (new_arr)
+ memcpy(new_arr, b->def, sizeof b->def);
+ } else {
+ new_arr = js_realloc2(b->ctx, b->arr, sizeof(*b->arr) * new_size, &slack);
+ }
+ if (!new_arr) {
+ value_buffer_free(b);
+ JS_FreeValue(b->ctx, val);
+ b->error_status = -1;
+ return -1;
+ }
+ new_size += slack / sizeof(*new_arr);
+ b->arr = new_arr;
+ b->size = new_size;
+ }
+ b->arr[b->len++] = val;
+ return 0;
+}
+
+static int js_is_standard_regexp(JSContext *ctx, JSValueConst rx)
+{
+ JSValue val;
+ int res;
+
+ val = JS_GetProperty(ctx, rx, JS_ATOM_constructor);
+ if (JS_IsException(val))
+ return -1;
+ // rx.constructor === RegExp
+ res = js_same_value(ctx, val, ctx->regexp_ctor);
+ JS_FreeValue(ctx, val);
+ if (res) {
+ val = JS_GetProperty(ctx, rx, JS_ATOM_exec);
+ if (JS_IsException(val))
+ return -1;
+ // rx.exec === RE_exec
+ res = JS_IsCFunction(ctx, val, js_regexp_exec, 0);
+ JS_FreeValue(ctx, val);
+ }
+ return res;
+}
+
+static JSValue js_regexp_Symbol_replace(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ // [Symbol.replace](str, rep)
+ JSValueConst rx = this_val, rep = argv[1];
+ JSValueConst args[6];
+ JSValue flags, str, rep_val, matched, tab, rep_str, namedCaptures, res;
+ JSString *p, *sp, *rp;
+ StringBuffer b_s, *b = &b_s;
+ ValueBuffer v_b, *results = &v_b;
+ int nextSourcePosition, n, j, functionalReplace, is_global, fullUnicode;
+ uint32_t nCaptures;
+ int64_t position;
+
+ if (!JS_IsObject(rx))
+ return JS_ThrowTypeErrorNotAnObject(ctx);
+
+ string_buffer_init(ctx, b, 0);
+ value_buffer_init(ctx, results);
+
+ rep_val = JS_UNDEFINED;
+ matched = JS_UNDEFINED;
+ tab = JS_UNDEFINED;
+ flags = JS_UNDEFINED;
+ rep_str = JS_UNDEFINED;
+ namedCaptures = JS_UNDEFINED;
+
+ str = JS_ToString(ctx, argv[0]);
+ if (JS_IsException(str))
+ goto exception;
+
+ sp = JS_VALUE_GET_STRING(str);
+ rp = NULL;
+ functionalReplace = JS_IsFunction(ctx, rep);
+ if (!functionalReplace) {
+ rep_val = JS_ToString(ctx, rep);
+ if (JS_IsException(rep_val))
+ goto exception;
+ rp = JS_VALUE_GET_STRING(rep_val);
+ }
+
+ flags = JS_GetProperty(ctx, rx, JS_ATOM_flags);
+ if (JS_IsException(flags))
+ goto exception;
+ flags = JS_ToStringFree(ctx, flags);
+ if (JS_IsException(flags))
+ goto exception;
+ p = JS_VALUE_GET_STRING(flags);
+
+ // TODO(bnoordhuis) query 'u' flag the same way?
+ fullUnicode = 0;
+ is_global = (-1 != string_indexof_char(p, 'g', 0));
+ if (is_global) {
+ fullUnicode = JS_ToBoolFree(ctx, JS_GetProperty(ctx, rx, JS_ATOM_unicode));
+ if (fullUnicode < 0)
+ goto exception;
+ if (JS_SetProperty(ctx, rx, JS_ATOM_lastIndex, JS_NewInt32(ctx, 0)) < 0)
+ goto exception;
+ }
+
+ if (rp && rp->len == 0 && is_global && js_is_standard_regexp(ctx, rx)) {
+ /* use faster version for simple cases */
+ res = JS_RegExpDelete(ctx, rx, str);
+ goto done;
+ }
+ for(;;) {
+ JSValue result;
+ result = JS_RegExpExec(ctx, rx, str);
+ if (JS_IsException(result))
+ goto exception;
+ if (JS_IsNull(result))
+ break;
+ if (value_buffer_append(results, result) < 0)
+ goto exception;
+ if (!is_global)
+ break;
+ JS_FreeValue(ctx, matched);
+ matched = JS_ToStringFree(ctx, JS_GetPropertyInt64(ctx, result, 0));
+ if (JS_IsException(matched))
+ goto exception;
+ if (JS_IsEmptyString(matched)) {
+ /* always advance of at least one char */
+ int64_t thisIndex, nextIndex;
+ if (JS_ToLengthFree(ctx, &thisIndex, JS_GetProperty(ctx, rx, JS_ATOM_lastIndex)) < 0)
+ goto exception;
+ nextIndex = string_advance_index(sp, thisIndex, fullUnicode);
+ if (JS_SetProperty(ctx, rx, JS_ATOM_lastIndex, JS_NewInt64(ctx, nextIndex)) < 0)
+ goto exception;
+ }
+ }
+ nextSourcePosition = 0;
+ for(j = 0; j < results->len; j++) {
+ JSValueConst result;
+ result = results->arr[j];
+ if (js_get_length32(ctx, &nCaptures, result) < 0)
+ goto exception;
+ JS_FreeValue(ctx, matched);
+ matched = JS_ToStringFree(ctx, JS_GetPropertyInt64(ctx, result, 0));
+ if (JS_IsException(matched))
+ goto exception;
+ if (JS_ToLengthFree(ctx, &position, JS_GetProperty(ctx, result, JS_ATOM_index)))
+ goto exception;
+ if (position > sp->len)
+ position = sp->len;
+ else if (position < 0)
+ position = 0;
+ /* ignore substition if going backward (can happen
+ with custom regexp object) */
+ JS_FreeValue(ctx, tab);
+ tab = JS_NewArray(ctx);
+ if (JS_IsException(tab))
+ goto exception;
+ if (JS_DefinePropertyValueInt64(ctx, tab, 0, JS_DupValue(ctx, matched),
+ JS_PROP_C_W_E | JS_PROP_THROW) < 0)
+ goto exception;
+ for(n = 1; n < nCaptures; n++) {
+ JSValue capN;
+ capN = JS_GetPropertyInt64(ctx, result, n);
+ if (JS_IsException(capN))
+ goto exception;
+ if (!JS_IsUndefined(capN)) {
+ capN = JS_ToStringFree(ctx, capN);
+ if (JS_IsException(capN))
+ goto exception;
+ }
+ if (JS_DefinePropertyValueInt64(ctx, tab, n, capN,
+ JS_PROP_C_W_E | JS_PROP_THROW) < 0)
+ goto exception;
+ }
+ JS_FreeValue(ctx, namedCaptures);
+ namedCaptures = JS_GetProperty(ctx, result, JS_ATOM_groups);
+ if (JS_IsException(namedCaptures))
+ goto exception;
+ if (functionalReplace) {
+ if (JS_DefinePropertyValueInt64(ctx, tab, n++, JS_NewInt32(ctx, position), JS_PROP_C_W_E | JS_PROP_THROW) < 0)
+ goto exception;
+ if (JS_DefinePropertyValueInt64(ctx, tab, n++, JS_DupValue(ctx, str), JS_PROP_C_W_E | JS_PROP_THROW) < 0)
+ goto exception;
+ if (!JS_IsUndefined(namedCaptures)) {
+ if (JS_DefinePropertyValueInt64(ctx, tab, n++, JS_DupValue(ctx, namedCaptures), JS_PROP_C_W_E | JS_PROP_THROW) < 0)
+ goto exception;
+ }
+ args[0] = JS_UNDEFINED;
+ args[1] = tab;
+ JS_FreeValue(ctx, rep_str);
+ rep_str = JS_ToStringFree(ctx, js_function_apply(ctx, rep, 2, args, 0));
+ } else {
+ JSValue namedCaptures1;
+ if (!JS_IsUndefined(namedCaptures)) {
+ namedCaptures1 = JS_ToObject(ctx, namedCaptures);
+ if (JS_IsException(namedCaptures1))
+ goto exception;
+ } else {
+ namedCaptures1 = JS_UNDEFINED;
+ }
+ args[0] = matched;
+ args[1] = str;
+ args[2] = JS_NewInt32(ctx, position);
+ args[3] = tab;
+ args[4] = namedCaptures1;
+ args[5] = rep_val;
+ JS_FreeValue(ctx, rep_str);
+ rep_str = js_string___GetSubstitution(ctx, JS_UNDEFINED, 6, args);
+ JS_FreeValue(ctx, namedCaptures1);
+ }
+ if (JS_IsException(rep_str))
+ goto exception;
+ if (position >= nextSourcePosition) {
+ string_buffer_concat(b, sp, nextSourcePosition, position);
+ string_buffer_concat_value(b, rep_str);
+ nextSourcePosition = position + JS_VALUE_GET_STRING(matched)->len;
+ }
+ }
+ string_buffer_concat(b, sp, nextSourcePosition, sp->len);
+ res = string_buffer_end(b);
+ goto done1;
+
+exception:
+ res = JS_EXCEPTION;
+done:
+ string_buffer_free(b);
+done1:
+ value_buffer_free(results);
+ JS_FreeValue(ctx, rep_val);
+ JS_FreeValue(ctx, matched);
+ JS_FreeValue(ctx, flags);
+ JS_FreeValue(ctx, tab);
+ JS_FreeValue(ctx, rep_str);
+ JS_FreeValue(ctx, namedCaptures);
+ JS_FreeValue(ctx, str);
+ return res;
+}
+
+static JSValue js_regexp_Symbol_search(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValueConst rx = this_val;
+ JSValue str, previousLastIndex, currentLastIndex, result, index;
+
+ if (!JS_IsObject(rx))
+ return JS_ThrowTypeErrorNotAnObject(ctx);
+
+ result = JS_UNDEFINED;
+ currentLastIndex = JS_UNDEFINED;
+ previousLastIndex = JS_UNDEFINED;
+ str = JS_ToString(ctx, argv[0]);
+ if (JS_IsException(str))
+ goto exception;
+
+ previousLastIndex = JS_GetProperty(ctx, rx, JS_ATOM_lastIndex);
+ if (JS_IsException(previousLastIndex))
+ goto exception;
+
+ if (!js_same_value(ctx, previousLastIndex, JS_NewInt32(ctx, 0))) {
+ if (JS_SetProperty(ctx, rx, JS_ATOM_lastIndex, JS_NewInt32(ctx, 0)) < 0) {
+ goto exception;
+ }
+ }
+ result = JS_RegExpExec(ctx, rx, str);
+ if (JS_IsException(result))
+ goto exception;
+ currentLastIndex = JS_GetProperty(ctx, rx, JS_ATOM_lastIndex);
+ if (JS_IsException(currentLastIndex))
+ goto exception;
+ if (js_same_value(ctx, currentLastIndex, previousLastIndex)) {
+ JS_FreeValue(ctx, previousLastIndex);
+ } else {
+ if (JS_SetProperty(ctx, rx, JS_ATOM_lastIndex, previousLastIndex) < 0) {
+ previousLastIndex = JS_UNDEFINED;
+ goto exception;
+ }
+ }
+ JS_FreeValue(ctx, str);
+ JS_FreeValue(ctx, currentLastIndex);
+
+ if (JS_IsNull(result)) {
+ return JS_NewInt32(ctx, -1);
+ } else {
+ index = JS_GetProperty(ctx, result, JS_ATOM_index);
+ JS_FreeValue(ctx, result);
+ return index;
+ }
+
+exception:
+ JS_FreeValue(ctx, result);
+ JS_FreeValue(ctx, str);
+ JS_FreeValue(ctx, currentLastIndex);
+ JS_FreeValue(ctx, previousLastIndex);
+ return JS_EXCEPTION;
+}
+
+static JSValue js_regexp_Symbol_split(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ // [Symbol.split](str, limit)
+ JSValueConst rx = this_val;
+ JSValueConst args[2];
+ JSValue str, ctor, splitter, A, flags, z, sub;
+ JSString *strp;
+ uint32_t lim, size, p, q;
+ int unicodeMatching;
+ int64_t lengthA, e, numberOfCaptures, i;
+
+ if (!JS_IsObject(rx))
+ return JS_ThrowTypeErrorNotAnObject(ctx);
+
+ ctor = JS_UNDEFINED;
+ splitter = JS_UNDEFINED;
+ A = JS_UNDEFINED;
+ flags = JS_UNDEFINED;
+ z = JS_UNDEFINED;
+ str = JS_ToString(ctx, argv[0]);
+ if (JS_IsException(str))
+ goto exception;
+ ctor = JS_SpeciesConstructor(ctx, rx, ctx->regexp_ctor);
+ if (JS_IsException(ctor))
+ goto exception;
+ flags = JS_ToStringFree(ctx, JS_GetProperty(ctx, rx, JS_ATOM_flags));
+ if (JS_IsException(flags))
+ goto exception;
+ strp = JS_VALUE_GET_STRING(flags);
+ unicodeMatching = string_indexof_char(strp, 'u', 0) >= 0;
+ if (string_indexof_char(strp, 'y', 0) < 0) {
+ flags = JS_ConcatString3(ctx, "", flags, "y");
+ if (JS_IsException(flags))
+ goto exception;
+ }
+ args[0] = rx;
+ args[1] = flags;
+ splitter = JS_CallConstructor(ctx, ctor, 2, args);
+ if (JS_IsException(splitter))
+ goto exception;
+ A = JS_NewArray(ctx);
+ if (JS_IsException(A))
+ goto exception;
+ lengthA = 0;
+ if (JS_IsUndefined(argv[1])) {
+ lim = 0xffffffff;
+ } else {
+ if (JS_ToUint32(ctx, &lim, argv[1]) < 0)
+ goto exception;
+ if (lim == 0)
+ goto done;
+ }
+ strp = JS_VALUE_GET_STRING(str);
+ p = q = 0;
+ size = strp->len;
+ if (size == 0) {
+ z = JS_RegExpExec(ctx, splitter, str);
+ if (JS_IsException(z))
+ goto exception;
+ if (JS_IsNull(z))
+ goto add_tail;
+ goto done;
+ }
+ while (q < size) {
+ if (JS_SetProperty(ctx, splitter, JS_ATOM_lastIndex, JS_NewInt32(ctx, q)) < 0)
+ goto exception;
+ JS_FreeValue(ctx, z);
+ z = JS_RegExpExec(ctx, splitter, str);
+ if (JS_IsException(z))
+ goto exception;
+ if (JS_IsNull(z)) {
+ q = string_advance_index(strp, q, unicodeMatching);
+ } else {
+ if (JS_ToLengthFree(ctx, &e, JS_GetProperty(ctx, splitter, JS_ATOM_lastIndex)))
+ goto exception;
+ if (e > size)
+ e = size;
+ if (e == p) {
+ q = string_advance_index(strp, q, unicodeMatching);
+ } else {
+ sub = js_sub_string(ctx, strp, p, q);
+ if (JS_IsException(sub))
+ goto exception;
+ if (JS_DefinePropertyValueInt64(ctx, A, lengthA++, sub,
+ JS_PROP_C_W_E | JS_PROP_THROW) < 0)
+ goto exception;
+ if (lengthA == lim)
+ goto done;
+ p = e;
+ if (js_get_length64(ctx, &numberOfCaptures, z))
+ goto exception;
+ for(i = 1; i < numberOfCaptures; i++) {
+ sub = JS_ToStringFree(ctx, JS_GetPropertyInt64(ctx, z, i));
+ if (JS_IsException(sub))
+ goto exception;
+ if (JS_DefinePropertyValueInt64(ctx, A, lengthA++, sub, JS_PROP_C_W_E | JS_PROP_THROW) < 0)
+ goto exception;
+ if (lengthA == lim)
+ goto done;
+ }
+ q = p;
+ }
+ }
+ }
+add_tail:
+ if (p > size)
+ p = size;
+ sub = js_sub_string(ctx, strp, p, size);
+ if (JS_IsException(sub))
+ goto exception;
+ if (JS_DefinePropertyValueInt64(ctx, A, lengthA++, sub, JS_PROP_C_W_E | JS_PROP_THROW) < 0)
+ goto exception;
+ goto done;
+exception:
+ JS_FreeValue(ctx, A);
+ A = JS_EXCEPTION;
+done:
+ JS_FreeValue(ctx, str);
+ JS_FreeValue(ctx, ctor);
+ JS_FreeValue(ctx, splitter);
+ JS_FreeValue(ctx, flags);
+ JS_FreeValue(ctx, z);
+ return A;
+}
+
+static const JSCFunctionListEntry js_regexp_funcs[] = {
+ JS_CGETSET_DEF("[Symbol.species]", js_get_this, NULL ),
+ //JS_CFUNC_DEF("__RegExpExec", 2, js_regexp___RegExpExec ),
+ //JS_CFUNC_DEF("__RegExpDelete", 2, js_regexp___RegExpDelete ),
+};
+
+static const JSCFunctionListEntry js_regexp_proto_funcs[] = {
+ JS_CGETSET_DEF("flags", js_regexp_get_flags, NULL ),
+ JS_CGETSET_DEF("source", js_regexp_get_source, NULL ),
+ JS_CGETSET_MAGIC_DEF("global", js_regexp_get_flag, NULL, LRE_FLAG_GLOBAL ),
+ JS_CGETSET_MAGIC_DEF("ignoreCase", js_regexp_get_flag, NULL, LRE_FLAG_IGNORECASE ),
+ JS_CGETSET_MAGIC_DEF("multiline", js_regexp_get_flag, NULL, LRE_FLAG_MULTILINE ),
+ JS_CGETSET_MAGIC_DEF("dotAll", js_regexp_get_flag, NULL, LRE_FLAG_DOTALL ),
+ JS_CGETSET_MAGIC_DEF("unicode", js_regexp_get_flag, NULL, LRE_FLAG_UNICODE ),
+ JS_CGETSET_MAGIC_DEF("sticky", js_regexp_get_flag, NULL, LRE_FLAG_STICKY ),
+ JS_CGETSET_MAGIC_DEF("hasIndices", js_regexp_get_flag, NULL, LRE_FLAG_INDICES ),
+ JS_CFUNC_DEF("exec", 1, js_regexp_exec ),
+ JS_CFUNC_DEF("compile", 2, js_regexp_compile ),
+ JS_CFUNC_DEF("test", 1, js_regexp_test ),
+ JS_CFUNC_DEF("toString", 0, js_regexp_toString ),
+ JS_CFUNC_DEF("[Symbol.replace]", 2, js_regexp_Symbol_replace ),
+ JS_CFUNC_DEF("[Symbol.match]", 1, js_regexp_Symbol_match ),
+ JS_CFUNC_DEF("[Symbol.matchAll]", 1, js_regexp_Symbol_matchAll ),
+ JS_CFUNC_DEF("[Symbol.search]", 1, js_regexp_Symbol_search ),
+ JS_CFUNC_DEF("[Symbol.split]", 2, js_regexp_Symbol_split ),
+ //JS_CGETSET_DEF("__source", js_regexp_get___source, NULL ),
+ //JS_CGETSET_DEF("__flags", js_regexp_get___flags, NULL ),
+};
+
+static const JSCFunctionListEntry js_regexp_string_iterator_proto_funcs[] = {
+ JS_ITERATOR_NEXT_DEF("next", 0, js_regexp_string_iterator_next, 0 ),
+ JS_PROP_STRING_DEF("[Symbol.toStringTag]", "RegExp String Iterator", JS_PROP_CONFIGURABLE ),
+};
+
+void JS_AddIntrinsicRegExpCompiler(JSContext *ctx)
+{
+ ctx->compile_regexp = js_compile_regexp;
+}
+
+void JS_AddIntrinsicRegExp(JSContext *ctx)
+{
+ JSValueConst obj;
+
+ JS_AddIntrinsicRegExpCompiler(ctx);
+
+ ctx->class_proto[JS_CLASS_REGEXP] = JS_NewObject(ctx);
+ JS_SetPropertyFunctionList(ctx, ctx->class_proto[JS_CLASS_REGEXP], js_regexp_proto_funcs,
+ countof(js_regexp_proto_funcs));
+ obj = JS_NewGlobalCConstructor(ctx, "RegExp", js_regexp_constructor, 2,
+ ctx->class_proto[JS_CLASS_REGEXP]);
+ ctx->regexp_ctor = JS_DupValue(ctx, obj);
+ JS_SetPropertyFunctionList(ctx, obj, js_regexp_funcs, countof(js_regexp_funcs));
+
+ ctx->class_proto[JS_CLASS_REGEXP_STRING_ITERATOR] =
+ JS_NewObjectProto(ctx, ctx->iterator_proto);
+ JS_SetPropertyFunctionList(ctx, ctx->class_proto[JS_CLASS_REGEXP_STRING_ITERATOR],
+ js_regexp_string_iterator_proto_funcs,
+ countof(js_regexp_string_iterator_proto_funcs));
+}
+
+/* JSON */
+
+static int json_parse_expect(JSParseState *s, int tok)
+{
+ if (s->token.val != tok) {
+ /* XXX: dump token correctly in all cases */
+ return js_parse_error(s, "expecting '%c'", tok);
+ }
+ return json_next_token(s);
+}
+
+static JSValue json_parse_value(JSParseState *s)
+{
+ JSContext *ctx = s->ctx;
+ JSValue val = JS_NULL;
+ int ret;
+
+ switch(s->token.val) {
+ case '{':
+ {
+ JSValue prop_val;
+ JSAtom prop_name;
+
+ if (json_next_token(s))
+ goto fail;
+ val = JS_NewObject(ctx);
+ if (JS_IsException(val))
+ goto fail;
+ if (s->token.val != '}') {
+ for(;;) {
+ if (s->token.val == TOK_STRING) {
+ prop_name = JS_ValueToAtom(ctx, s->token.u.str.str);
+ if (prop_name == JS_ATOM_NULL)
+ goto fail;
+ } else if (s->ext_json && s->token.val == TOK_IDENT) {
+ prop_name = JS_DupAtom(ctx, s->token.u.ident.atom);
+ } else {
+ js_parse_error(s, "expecting property name");
+ goto fail;
+ }
+ if (json_next_token(s))
+ goto fail1;
+ if (json_parse_expect(s, ':'))
+ goto fail1;
+ prop_val = json_parse_value(s);
+ if (JS_IsException(prop_val)) {
+ fail1:
+ JS_FreeAtom(ctx, prop_name);
+ goto fail;
+ }
+ ret = JS_DefinePropertyValue(ctx, val, prop_name,
+ prop_val, JS_PROP_C_W_E);
+ JS_FreeAtom(ctx, prop_name);
+ if (ret < 0)
+ goto fail;
+
+ if (s->token.val != ',')
+ break;
+ if (json_next_token(s))
+ goto fail;
+ if (s->ext_json && s->token.val == '}')
+ break;
+ }
+ }
+ if (json_parse_expect(s, '}'))
+ goto fail;
+ }
+ break;
+ case '[':
+ {
+ JSValue el;
+ uint32_t idx;
+
+ if (json_next_token(s))
+ goto fail;
+ val = JS_NewArray(ctx);
+ if (JS_IsException(val))
+ goto fail;
+ if (s->token.val != ']') {
+ idx = 0;
+ for(;;) {
+ el = json_parse_value(s);
+ if (JS_IsException(el))
+ goto fail;
+ ret = JS_DefinePropertyValueUint32(ctx, val, idx, el, JS_PROP_C_W_E);
+ if (ret < 0)
+ goto fail;
+ if (s->token.val != ',')
+ break;
+ if (json_next_token(s))
+ goto fail;
+ idx++;
+ if (s->ext_json && s->token.val == ']')
+ break;
+ }
+ }
+ if (json_parse_expect(s, ']'))
+ goto fail;
+ }
+ break;
+ case TOK_STRING:
+ val = JS_DupValue(ctx, s->token.u.str.str);
+ if (json_next_token(s))
+ goto fail;
+ break;
+ case TOK_NUMBER:
+ val = s->token.u.num.val;
+ if (json_next_token(s))
+ goto fail;
+ break;
+ case TOK_IDENT:
+ if (s->token.u.ident.atom == JS_ATOM_false ||
+ s->token.u.ident.atom == JS_ATOM_true) {
+ val = JS_NewBool(ctx, s->token.u.ident.atom == JS_ATOM_true);
+ } else if (s->token.u.ident.atom == JS_ATOM_null) {
+ val = JS_NULL;
+ } else {
+ goto def_token;
+ }
+ if (json_next_token(s))
+ goto fail;
+ break;
+ default:
+ def_token:
+ if (s->token.val == TOK_EOF) {
+ js_parse_error(s, "Unexpected end of JSON input");
+ } else {
+ js_parse_error(s, "unexpected token: '%.*s'",
+ (int)(s->buf_ptr - s->token.ptr), s->token.ptr);
+ }
+ goto fail;
+ }
+ return val;
+ fail:
+ JS_FreeValue(ctx, val);
+ return JS_EXCEPTION;
+}
+
+JSValue JS_ParseJSON2(JSContext *ctx, const char *buf, size_t buf_len,
+ const char *filename, int flags)
+{
+ JSParseState s1, *s = &s1;
+ JSValue val = JS_UNDEFINED;
+
+ js_parse_init(ctx, s, buf, buf_len, filename);
+ s->ext_json = ((flags & JS_PARSE_JSON_EXT) != 0);
+ if (json_next_token(s))
+ goto fail;
+ val = json_parse_value(s);
+ if (JS_IsException(val))
+ goto fail;
+ if (s->token.val != TOK_EOF) {
+ if (js_parse_error(s, "unexpected data at the end"))
+ goto fail;
+ }
+ return val;
+ fail:
+ JS_FreeValue(ctx, val);
+ free_token(s, &s->token);
+ return JS_EXCEPTION;
+}
+
+JSValue JS_ParseJSON(JSContext *ctx, const char *buf, size_t buf_len,
+ const char *filename)
+{
+ return JS_ParseJSON2(ctx, buf, buf_len, filename, 0);
+}
+
+static JSValue internalize_json_property(JSContext *ctx, JSValueConst holder,
+ JSAtom name, JSValueConst reviver)
+{
+ JSValue val, new_el, name_val, res;
+ JSValueConst args[2];
+ int ret, is_array;
+ uint32_t i, len = 0;
+ JSAtom prop;
+ JSPropertyEnum *atoms = NULL;
+
+ if (js_check_stack_overflow(ctx->rt, 0)) {
+ return JS_ThrowStackOverflow(ctx);
+ }
+
+ val = JS_GetProperty(ctx, holder, name);
+ if (JS_IsException(val))
+ return val;
+ if (JS_IsObject(val)) {
+ is_array = JS_IsArray(ctx, val);
+ if (is_array < 0)
+ goto fail;
+ if (is_array) {
+ if (js_get_length32(ctx, &len, val))
+ goto fail;
+ } else {
+ ret = JS_GetOwnPropertyNamesInternal(ctx, &atoms, &len, JS_VALUE_GET_OBJ(val), JS_GPN_ENUM_ONLY | JS_GPN_STRING_MASK);
+ if (ret < 0)
+ goto fail;
+ }
+ for(i = 0; i < len; i++) {
+ if (is_array) {
+ prop = JS_NewAtomUInt32(ctx, i);
+ if (prop == JS_ATOM_NULL)
+ goto fail;
+ } else {
+ prop = JS_DupAtom(ctx, atoms[i].atom);
+ }
+ new_el = internalize_json_property(ctx, val, prop, reviver);
+ if (JS_IsException(new_el)) {
+ JS_FreeAtom(ctx, prop);
+ goto fail;
+ }
+ if (JS_IsUndefined(new_el)) {
+ ret = JS_DeleteProperty(ctx, val, prop, 0);
+ } else {
+ ret = JS_DefinePropertyValue(ctx, val, prop, new_el, JS_PROP_C_W_E);
+ }
+ JS_FreeAtom(ctx, prop);
+ if (ret < 0)
+ goto fail;
+ }
+ }
+ js_free_prop_enum(ctx, atoms, len);
+ atoms = NULL;
+ name_val = JS_AtomToValue(ctx, name);
+ if (JS_IsException(name_val))
+ goto fail;
+ args[0] = name_val;
+ args[1] = val;
+ res = JS_Call(ctx, reviver, holder, 2, args);
+ JS_FreeValue(ctx, name_val);
+ JS_FreeValue(ctx, val);
+ return res;
+ fail:
+ js_free_prop_enum(ctx, atoms, len);
+ JS_FreeValue(ctx, val);
+ return JS_EXCEPTION;
+}
+
+static JSValue js_json_parse(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValue obj, root;
+ JSValueConst reviver;
+ const char *str;
+ size_t len;
+
+ str = JS_ToCStringLen(ctx, &len, argv[0]);
+ if (!str)
+ return JS_EXCEPTION;
+ obj = JS_ParseJSON(ctx, str, len, "<input>");
+ JS_FreeCString(ctx, str);
+ if (JS_IsException(obj))
+ return obj;
+ if (argc > 1 && JS_IsFunction(ctx, argv[1])) {
+ reviver = argv[1];
+ root = JS_NewObject(ctx);
+ if (JS_IsException(root)) {
+ JS_FreeValue(ctx, obj);
+ return JS_EXCEPTION;
+ }
+ if (JS_DefinePropertyValue(ctx, root, JS_ATOM_empty_string, obj,
+ JS_PROP_C_W_E) < 0) {
+ JS_FreeValue(ctx, root);
+ return JS_EXCEPTION;
+ }
+ obj = internalize_json_property(ctx, root, JS_ATOM_empty_string,
+ reviver);
+ JS_FreeValue(ctx, root);
+ }
+ return obj;
+}
+
+typedef struct JSONStringifyContext {
+ JSValueConst replacer_func;
+ JSValue stack;
+ JSValue property_list;
+ JSValue gap;
+ JSValue empty;
+ StringBuffer *b;
+} JSONStringifyContext;
+
+static JSValue JS_ToQuotedStringFree(JSContext *ctx, JSValue val) {
+ JSValue r = JS_ToQuotedString(ctx, val);
+ JS_FreeValue(ctx, val);
+ return r;
+}
+
+static JSValue js_json_check(JSContext *ctx, JSONStringifyContext *jsc,
+ JSValueConst holder, JSValue val, JSValueConst key)
+{
+ JSValue v;
+ JSValueConst args[2];
+
+ /* check for object.toJSON method */
+ /* ECMA specifies this is done only for Object and BigInt */
+ /* we do it for BigFloat and BigDecimal as an extension */
+ if (JS_IsObject(val) || JS_IsBigInt(ctx, val)
+#ifdef CONFIG_BIGNUM
+ || JS_IsBigFloat(val) || JS_IsBigDecimal(val)
+#endif
+ ) {
+ JSValue f = JS_GetProperty(ctx, val, JS_ATOM_toJSON);
+ if (JS_IsException(f))
+ goto exception;
+ if (JS_IsFunction(ctx, f)) {
+ v = JS_CallFree(ctx, f, val, 1, &key);
+ JS_FreeValue(ctx, val);
+ val = v;
+ if (JS_IsException(val))
+ goto exception;
+ } else {
+ JS_FreeValue(ctx, f);
+ }
+ }
+
+ if (!JS_IsUndefined(jsc->replacer_func)) {
+ args[0] = key;
+ args[1] = val;
+ v = JS_Call(ctx, jsc->replacer_func, holder, 2, args);
+ JS_FreeValue(ctx, val);
+ val = v;
+ if (JS_IsException(val))
+ goto exception;
+ }
+
+ switch (JS_VALUE_GET_NORM_TAG(val)) {
+ case JS_TAG_OBJECT:
+ if (JS_IsFunction(ctx, val))
+ break;
+ case JS_TAG_STRING:
+ case JS_TAG_INT:
+ case JS_TAG_FLOAT64:
+ case JS_TAG_BOOL:
+ case JS_TAG_NULL:
+ case JS_TAG_BIG_INT:
+#ifdef CONFIG_BIGNUM
+ case JS_TAG_BIG_FLOAT:
+ case JS_TAG_BIG_DECIMAL:
+#endif
+ case JS_TAG_EXCEPTION:
+ return val;
+ default:
+ break;
+ }
+ JS_FreeValue(ctx, val);
+ return JS_UNDEFINED;
+
+exception:
+ JS_FreeValue(ctx, val);
+ return JS_EXCEPTION;
+}
+
+static int js_json_to_str(JSContext *ctx, JSONStringifyContext *jsc,
+ JSValueConst holder, JSValue val,
+ JSValueConst indent)
+{
+ JSValue indent1, sep, sep1, tab, v, prop;
+ JSObject *p;
+ int64_t i, len;
+ int cl, ret;
+ BOOL has_content;
+
+ indent1 = JS_UNDEFINED;
+ sep = JS_UNDEFINED;
+ sep1 = JS_UNDEFINED;
+ tab = JS_UNDEFINED;
+ prop = JS_UNDEFINED;
+
+ if (JS_IsObject(val)) {
+ p = JS_VALUE_GET_OBJ(val);
+ cl = p->class_id;
+ if (cl == JS_CLASS_STRING) {
+ val = JS_ToStringFree(ctx, val);
+ if (JS_IsException(val))
+ goto exception;
+ goto concat_primitive;
+ } else if (cl == JS_CLASS_NUMBER) {
+ val = JS_ToNumberFree(ctx, val);
+ if (JS_IsException(val))
+ goto exception;
+ goto concat_primitive;
+ } else if (cl == JS_CLASS_BOOLEAN || cl == JS_CLASS_BIG_INT
+#ifdef CONFIG_BIGNUM
+ || cl == JS_CLASS_BIG_FLOAT
+ || cl == JS_CLASS_BIG_DECIMAL
+#endif
+ )
+ {
+ /* This will thow the same error as for the primitive object */
+ set_value(ctx, &val, JS_DupValue(ctx, p->u.object_data));
+ goto concat_primitive;
+ }
+ v = js_array_includes(ctx, jsc->stack, 1, (JSValueConst *)&val);
+ if (JS_IsException(v))
+ goto exception;
+ if (JS_ToBoolFree(ctx, v)) {
+ JS_ThrowTypeError(ctx, "circular reference");
+ goto exception;
+ }
+ indent1 = JS_ConcatString(ctx, JS_DupValue(ctx, indent), JS_DupValue(ctx, jsc->gap));
+ if (JS_IsException(indent1))
+ goto exception;
+ if (!JS_IsEmptyString(jsc->gap)) {
+ sep = JS_ConcatString3(ctx, "\n", JS_DupValue(ctx, indent1), "");
+ if (JS_IsException(sep))
+ goto exception;
+ sep1 = JS_NewString(ctx, " ");
+ if (JS_IsException(sep1))
+ goto exception;
+ } else {
+ sep = JS_DupValue(ctx, jsc->empty);
+ sep1 = JS_DupValue(ctx, jsc->empty);
+ }
+ v = js_array_push(ctx, jsc->stack, 1, (JSValueConst *)&val, 0);
+ if (check_exception_free(ctx, v))
+ goto exception;
+ ret = JS_IsArray(ctx, val);
+ if (ret < 0)
+ goto exception;
+ if (ret) {
+ if (js_get_length64(ctx, &len, val))
+ goto exception;
+ string_buffer_putc8(jsc->b, '[');
+ for(i = 0; i < len; i++) {
+ if (i > 0)
+ string_buffer_putc8(jsc->b, ',');
+ string_buffer_concat_value(jsc->b, sep);
+ v = JS_GetPropertyInt64(ctx, val, i);
+ if (JS_IsException(v))
+ goto exception;
+ /* XXX: could do this string conversion only when needed */
+ prop = JS_ToStringFree(ctx, JS_NewInt64(ctx, i));
+ if (JS_IsException(prop))
+ goto exception;
+ v = js_json_check(ctx, jsc, val, v, prop);
+ JS_FreeValue(ctx, prop);
+ prop = JS_UNDEFINED;
+ if (JS_IsException(v))
+ goto exception;
+ if (JS_IsUndefined(v))
+ v = JS_NULL;
+ if (js_json_to_str(ctx, jsc, val, v, indent1))
+ goto exception;
+ }
+ if (len > 0 && !JS_IsEmptyString(jsc->gap)) {
+ string_buffer_putc8(jsc->b, '\n');
+ string_buffer_concat_value(jsc->b, indent);
+ }
+ string_buffer_putc8(jsc->b, ']');
+ } else {
+ if (!JS_IsUndefined(jsc->property_list))
+ tab = JS_DupValue(ctx, jsc->property_list);
+ else
+ tab = js_object_keys(ctx, JS_UNDEFINED, 1, (JSValueConst *)&val, JS_ITERATOR_KIND_KEY);
+ if (JS_IsException(tab))
+ goto exception;
+ if (js_get_length64(ctx, &len, tab))
+ goto exception;
+ string_buffer_putc8(jsc->b, '{');
+ has_content = FALSE;
+ for(i = 0; i < len; i++) {
+ JS_FreeValue(ctx, prop);
+ prop = JS_GetPropertyInt64(ctx, tab, i);
+ if (JS_IsException(prop))
+ goto exception;
+ v = JS_GetPropertyValue(ctx, val, JS_DupValue(ctx, prop));
+ if (JS_IsException(v))
+ goto exception;
+ v = js_json_check(ctx, jsc, val, v, prop);
+ if (JS_IsException(v))
+ goto exception;
+ if (!JS_IsUndefined(v)) {
+ if (has_content)
+ string_buffer_putc8(jsc->b, ',');
+ prop = JS_ToQuotedStringFree(ctx, prop);
+ if (JS_IsException(prop)) {
+ JS_FreeValue(ctx, v);
+ goto exception;
+ }
+ string_buffer_concat_value(jsc->b, sep);
+ string_buffer_concat_value(jsc->b, prop);
+ string_buffer_putc8(jsc->b, ':');
+ string_buffer_concat_value(jsc->b, sep1);
+ if (js_json_to_str(ctx, jsc, val, v, indent1))
+ goto exception;
+ has_content = TRUE;
+ }
+ }
+ if (has_content && !JS_IsEmptyString(jsc->gap)) {
+ string_buffer_putc8(jsc->b, '\n');
+ string_buffer_concat_value(jsc->b, indent);
+ }
+ string_buffer_putc8(jsc->b, '}');
+ }
+ if (check_exception_free(ctx, js_array_pop(ctx, jsc->stack, 0, NULL, 0)))
+ goto exception;
+ JS_FreeValue(ctx, val);
+ JS_FreeValue(ctx, tab);
+ JS_FreeValue(ctx, sep);
+ JS_FreeValue(ctx, sep1);
+ JS_FreeValue(ctx, indent1);
+ JS_FreeValue(ctx, prop);
+ return 0;
+ }
+ concat_primitive:
+ switch (JS_VALUE_GET_NORM_TAG(val)) {
+ case JS_TAG_STRING:
+ val = JS_ToQuotedStringFree(ctx, val);
+ if (JS_IsException(val))
+ goto exception;
+ goto concat_value;
+ case JS_TAG_FLOAT64:
+ if (!isfinite(JS_VALUE_GET_FLOAT64(val))) {
+ val = JS_NULL;
+ }
+ goto concat_value;
+ case JS_TAG_INT:
+ case JS_TAG_BOOL:
+ case JS_TAG_NULL:
+ concat_value:
+ return string_buffer_concat_value_free(jsc->b, val);
+ case JS_TAG_BIG_INT:
+#ifdef CONFIG_BIGNUM
+ case JS_TAG_BIG_FLOAT:
+ case JS_TAG_BIG_DECIMAL:
+#endif
+ /* reject big numbers: use toJSON method to override */
+ JS_ThrowTypeError(ctx, "Do not know how to serialize a BigInt");
+ goto exception;
+ default:
+ JS_FreeValue(ctx, val);
+ return 0;
+ }
+
+exception:
+ JS_FreeValue(ctx, val);
+ JS_FreeValue(ctx, tab);
+ JS_FreeValue(ctx, sep);
+ JS_FreeValue(ctx, sep1);
+ JS_FreeValue(ctx, indent1);
+ JS_FreeValue(ctx, prop);
+ return -1;
+}
+
+JSValue JS_JSONStringify(JSContext *ctx, JSValueConst obj,
+ JSValueConst replacer, JSValueConst space0)
+{
+ StringBuffer b_s;
+ JSONStringifyContext jsc_s, *jsc = &jsc_s;
+ JSValue val, v, space, ret, wrapper;
+ int res;
+ int64_t i, j, n;
+
+ jsc->replacer_func = JS_UNDEFINED;
+ jsc->stack = JS_UNDEFINED;
+ jsc->property_list = JS_UNDEFINED;
+ jsc->gap = JS_UNDEFINED;
+ jsc->b = &b_s;
+ jsc->empty = JS_AtomToString(ctx, JS_ATOM_empty_string);
+ ret = JS_UNDEFINED;
+ wrapper = JS_UNDEFINED;
+
+ string_buffer_init(ctx, jsc->b, 0);
+ jsc->stack = JS_NewArray(ctx);
+ if (JS_IsException(jsc->stack))
+ goto exception;
+ if (JS_IsFunction(ctx, replacer)) {
+ jsc->replacer_func = replacer;
+ } else {
+ res = JS_IsArray(ctx, replacer);
+ if (res < 0)
+ goto exception;
+ if (res) {
+ /* XXX: enumeration is not fully correct */
+ jsc->property_list = JS_NewArray(ctx);
+ if (JS_IsException(jsc->property_list))
+ goto exception;
+ if (js_get_length64(ctx, &n, replacer))
+ goto exception;
+ for (i = j = 0; i < n; i++) {
+ JSValue present;
+ v = JS_GetPropertyInt64(ctx, replacer, i);
+ if (JS_IsException(v))
+ goto exception;
+ if (JS_IsObject(v)) {
+ JSObject *p = JS_VALUE_GET_OBJ(v);
+ if (p->class_id == JS_CLASS_STRING ||
+ p->class_id == JS_CLASS_NUMBER) {
+ v = JS_ToStringFree(ctx, v);
+ if (JS_IsException(v))
+ goto exception;
+ } else {
+ JS_FreeValue(ctx, v);
+ continue;
+ }
+ } else if (JS_IsNumber(v)) {
+ v = JS_ToStringFree(ctx, v);
+ if (JS_IsException(v))
+ goto exception;
+ } else if (!JS_IsString(v)) {
+ JS_FreeValue(ctx, v);
+ continue;
+ }
+ present = js_array_includes(ctx, jsc->property_list,
+ 1, (JSValueConst *)&v);
+ if (JS_IsException(present)) {
+ JS_FreeValue(ctx, v);
+ goto exception;
+ }
+ if (!JS_ToBoolFree(ctx, present)) {
+ JS_SetPropertyInt64(ctx, jsc->property_list, j++, v);
+ } else {
+ JS_FreeValue(ctx, v);
+ }
+ }
+ }
+ }
+ space = JS_DupValue(ctx, space0);
+ if (JS_IsObject(space)) {
+ JSObject *p = JS_VALUE_GET_OBJ(space);
+ if (p->class_id == JS_CLASS_NUMBER) {
+ space = JS_ToNumberFree(ctx, space);
+ } else if (p->class_id == JS_CLASS_STRING) {
+ space = JS_ToStringFree(ctx, space);
+ }
+ if (JS_IsException(space)) {
+ JS_FreeValue(ctx, space);
+ goto exception;
+ }
+ }
+ if (JS_IsNumber(space)) {
+ int n;
+ if (JS_ToInt32Clamp(ctx, &n, space, 0, 10, 0))
+ goto exception;
+ jsc->gap = JS_NewStringLen(ctx, " ", n);
+ } else if (JS_IsString(space)) {
+ JSString *p = JS_VALUE_GET_STRING(space);
+ jsc->gap = js_sub_string(ctx, p, 0, min_int(p->len, 10));
+ } else {
+ jsc->gap = JS_DupValue(ctx, jsc->empty);
+ }
+ JS_FreeValue(ctx, space);
+ if (JS_IsException(jsc->gap))
+ goto exception;
+ wrapper = JS_NewObject(ctx);
+ if (JS_IsException(wrapper))
+ goto exception;
+ if (JS_DefinePropertyValue(ctx, wrapper, JS_ATOM_empty_string,
+ JS_DupValue(ctx, obj), JS_PROP_C_W_E) < 0)
+ goto exception;
+ val = JS_DupValue(ctx, obj);
+
+ val = js_json_check(ctx, jsc, wrapper, val, jsc->empty);
+ if (JS_IsException(val))
+ goto exception;
+ if (JS_IsUndefined(val)) {
+ ret = JS_UNDEFINED;
+ goto done1;
+ }
+ if (js_json_to_str(ctx, jsc, wrapper, val, jsc->empty))
+ goto exception;
+
+ ret = string_buffer_end(jsc->b);
+ goto done;
+
+exception:
+ ret = JS_EXCEPTION;
+done1:
+ string_buffer_free(jsc->b);
+done:
+ JS_FreeValue(ctx, wrapper);
+ JS_FreeValue(ctx, jsc->empty);
+ JS_FreeValue(ctx, jsc->gap);
+ JS_FreeValue(ctx, jsc->property_list);
+ JS_FreeValue(ctx, jsc->stack);
+ return ret;
+}
+
+static JSValue js_json_stringify(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ // stringify(val, replacer, space)
+ return JS_JSONStringify(ctx, argv[0], argv[1], argv[2]);
+}
+
+static const JSCFunctionListEntry js_json_funcs[] = {
+ JS_CFUNC_DEF("parse", 2, js_json_parse ),
+ JS_CFUNC_DEF("stringify", 3, js_json_stringify ),
+ JS_PROP_STRING_DEF("[Symbol.toStringTag]", "JSON", JS_PROP_CONFIGURABLE ),
+};
+
+static const JSCFunctionListEntry js_json_obj[] = {
+ JS_OBJECT_DEF("JSON", js_json_funcs, countof(js_json_funcs), JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE ),
+};
+
+void JS_AddIntrinsicJSON(JSContext *ctx)
+{
+ /* add JSON as autoinit object */
+ JS_SetPropertyFunctionList(ctx, ctx->global_obj, js_json_obj, countof(js_json_obj));
+}
+
+/* Reflect */
+
+static JSValue js_reflect_apply(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ return js_function_apply(ctx, argv[0], max_int(0, argc - 1), argv + 1, 2);
+}
+
+static JSValue js_reflect_construct(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValueConst func, array_arg, new_target;
+ JSValue *tab, ret;
+ uint32_t len;
+
+ func = argv[0];
+ array_arg = argv[1];
+ if (argc > 2) {
+ new_target = argv[2];
+ if (!JS_IsConstructor(ctx, new_target))
+ return JS_ThrowTypeError(ctx, "not a constructor");
+ } else {
+ new_target = func;
+ }
+ tab = build_arg_list(ctx, &len, array_arg);
+ if (!tab)
+ return JS_EXCEPTION;
+ ret = JS_CallConstructor2(ctx, func, new_target, len, (JSValueConst *)tab);
+ free_arg_list(ctx, tab, len);
+ return ret;
+}
+
+static JSValue js_reflect_deleteProperty(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValueConst obj;
+ JSAtom atom;
+ int ret;
+
+ obj = argv[0];
+ if (JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT)
+ return JS_ThrowTypeErrorNotAnObject(ctx);
+ atom = JS_ValueToAtom(ctx, argv[1]);
+ if (unlikely(atom == JS_ATOM_NULL))
+ return JS_EXCEPTION;
+ ret = JS_DeleteProperty(ctx, obj, atom, 0);
+ JS_FreeAtom(ctx, atom);
+ if (ret < 0)
+ return JS_EXCEPTION;
+ else
+ return JS_NewBool(ctx, ret);
+}
+
+static JSValue js_reflect_get(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValueConst obj, prop, receiver;
+ JSAtom atom;
+ JSValue ret;
+
+ obj = argv[0];
+ prop = argv[1];
+ if (JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT)
+ return JS_ThrowTypeErrorNotAnObject(ctx);
+ if (argc > 2)
+ receiver = argv[2];
+ else
+ receiver = obj;
+ atom = JS_ValueToAtom(ctx, prop);
+ if (unlikely(atom == JS_ATOM_NULL))
+ return JS_EXCEPTION;
+ ret = JS_GetPropertyInternal(ctx, obj, atom, receiver, FALSE);
+ JS_FreeAtom(ctx, atom);
+ return ret;
+}
+
+static JSValue js_reflect_has(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValueConst obj, prop;
+ JSAtom atom;
+ int ret;
+
+ obj = argv[0];
+ prop = argv[1];
+ if (JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT)
+ return JS_ThrowTypeErrorNotAnObject(ctx);
+ atom = JS_ValueToAtom(ctx, prop);
+ if (unlikely(atom == JS_ATOM_NULL))
+ return JS_EXCEPTION;
+ ret = JS_HasProperty(ctx, obj, atom);
+ JS_FreeAtom(ctx, atom);
+ if (ret < 0)
+ return JS_EXCEPTION;
+ else
+ return JS_NewBool(ctx, ret);
+}
+
+static JSValue js_reflect_set(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValueConst obj, prop, val, receiver;
+ int ret;
+ JSAtom atom;
+
+ obj = argv[0];
+ prop = argv[1];
+ val = argv[2];
+ if (argc > 3)
+ receiver = argv[3];
+ else
+ receiver = obj;
+ if (JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT)
+ return JS_ThrowTypeErrorNotAnObject(ctx);
+ atom = JS_ValueToAtom(ctx, prop);
+ if (unlikely(atom == JS_ATOM_NULL))
+ return JS_EXCEPTION;
+ ret = JS_SetPropertyInternal(ctx, obj, atom,
+ JS_DupValue(ctx, val), receiver, 0);
+ JS_FreeAtom(ctx, atom);
+ if (ret < 0)
+ return JS_EXCEPTION;
+ else
+ return JS_NewBool(ctx, ret);
+}
+
+static JSValue js_reflect_setPrototypeOf(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ int ret;
+ ret = JS_SetPrototypeInternal(ctx, argv[0], argv[1], FALSE);
+ if (ret < 0)
+ return JS_EXCEPTION;
+ else
+ return JS_NewBool(ctx, ret);
+}
+
+static JSValue js_reflect_ownKeys(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ if (JS_VALUE_GET_TAG(argv[0]) != JS_TAG_OBJECT)
+ return JS_ThrowTypeErrorNotAnObject(ctx);
+ return JS_GetOwnPropertyNames2(ctx, argv[0],
+ JS_GPN_STRING_MASK | JS_GPN_SYMBOL_MASK,
+ JS_ITERATOR_KIND_KEY);
+}
+
+static const JSCFunctionListEntry js_reflect_funcs[] = {
+ JS_CFUNC_DEF("apply", 3, js_reflect_apply ),
+ JS_CFUNC_DEF("construct", 2, js_reflect_construct ),
+ JS_CFUNC_MAGIC_DEF("defineProperty", 3, js_object_defineProperty, 1 ),
+ JS_CFUNC_DEF("deleteProperty", 2, js_reflect_deleteProperty ),
+ JS_CFUNC_DEF("get", 2, js_reflect_get ),
+ JS_CFUNC_MAGIC_DEF("getOwnPropertyDescriptor", 2, js_object_getOwnPropertyDescriptor, 1 ),
+ JS_CFUNC_MAGIC_DEF("getPrototypeOf", 1, js_object_getPrototypeOf, 1 ),
+ JS_CFUNC_DEF("has", 2, js_reflect_has ),
+ JS_CFUNC_MAGIC_DEF("isExtensible", 1, js_object_isExtensible, 1 ),
+ JS_CFUNC_DEF("ownKeys", 1, js_reflect_ownKeys ),
+ JS_CFUNC_MAGIC_DEF("preventExtensions", 1, js_object_preventExtensions, 1 ),
+ JS_CFUNC_DEF("set", 3, js_reflect_set ),
+ JS_CFUNC_DEF("setPrototypeOf", 2, js_reflect_setPrototypeOf ),
+ JS_PROP_STRING_DEF("[Symbol.toStringTag]", "Reflect", JS_PROP_CONFIGURABLE ),
+};
+
+static const JSCFunctionListEntry js_reflect_obj[] = {
+ JS_OBJECT_DEF("Reflect", js_reflect_funcs, countof(js_reflect_funcs), JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE ),
+};
+
+/* Proxy */
+
+static void js_proxy_finalizer(JSRuntime *rt, JSValue val)
+{
+ JSProxyData *s = JS_GetOpaque(val, JS_CLASS_PROXY);
+ if (s) {
+ JS_FreeValueRT(rt, s->target);
+ JS_FreeValueRT(rt, s->handler);
+ js_free_rt(rt, s);
+ }
+}
+
+static void js_proxy_mark(JSRuntime *rt, JSValueConst val,
+ JS_MarkFunc *mark_func)
+{
+ JSProxyData *s = JS_GetOpaque(val, JS_CLASS_PROXY);
+ if (s) {
+ JS_MarkValue(rt, s->target, mark_func);
+ JS_MarkValue(rt, s->handler, mark_func);
+ }
+}
+
+static JSValue JS_ThrowTypeErrorRevokedProxy(JSContext *ctx)
+{
+ return JS_ThrowTypeError(ctx, "revoked proxy");
+}
+
+static JSProxyData *get_proxy_method(JSContext *ctx, JSValue *pmethod,
+ JSValueConst obj, JSAtom name)
+{
+ JSProxyData *s = JS_GetOpaque(obj, JS_CLASS_PROXY);
+ JSValue method;
+
+ /* safer to test recursion in all proxy methods */
+ if (js_check_stack_overflow(ctx->rt, 0)) {
+ JS_ThrowStackOverflow(ctx);
+ return NULL;
+ }
+
+ /* 's' should never be NULL */
+ if (s->is_revoked) {
+ JS_ThrowTypeErrorRevokedProxy(ctx);
+ return NULL;
+ }
+ method = JS_GetProperty(ctx, s->handler, name);
+ if (JS_IsException(method))
+ return NULL;
+ if (JS_IsNull(method))
+ method = JS_UNDEFINED;
+ *pmethod = method;
+ return s;
+}
+
+static JSValue js_proxy_getPrototypeOf(JSContext *ctx, JSValueConst obj)
+{
+ JSProxyData *s;
+ JSValue method, ret, proto1;
+ int res;
+
+ s = get_proxy_method(ctx, &method, obj, JS_ATOM_getPrototypeOf);
+ if (!s)
+ return JS_EXCEPTION;
+ if (JS_IsUndefined(method))
+ return JS_GetPrototype(ctx, s->target);
+ ret = JS_CallFree(ctx, method, s->handler, 1, (JSValueConst *)&s->target);
+ if (JS_IsException(ret))
+ return ret;
+ if (JS_VALUE_GET_TAG(ret) != JS_TAG_NULL &&
+ JS_VALUE_GET_TAG(ret) != JS_TAG_OBJECT) {
+ goto fail;
+ }
+ res = JS_IsExtensible(ctx, s->target);
+ if (res < 0) {
+ JS_FreeValue(ctx, ret);
+ return JS_EXCEPTION;
+ }
+ if (!res) {
+ /* check invariant */
+ proto1 = JS_GetPrototype(ctx, s->target);
+ if (JS_IsException(proto1)) {
+ JS_FreeValue(ctx, ret);
+ return JS_EXCEPTION;
+ }
+ if (JS_VALUE_GET_OBJ(proto1) != JS_VALUE_GET_OBJ(ret)) {
+ JS_FreeValue(ctx, proto1);
+ fail:
+ JS_FreeValue(ctx, ret);
+ return JS_ThrowTypeError(ctx, "proxy: inconsistent prototype");
+ }
+ JS_FreeValue(ctx, proto1);
+ }
+ return ret;
+}
+
+static int js_proxy_setPrototypeOf(JSContext *ctx, JSValueConst obj,
+ JSValueConst proto_val, BOOL throw_flag)
+{
+ JSProxyData *s;
+ JSValue method, ret, proto1;
+ JSValueConst args[2];
+ BOOL res;
+ int res2;
+
+ s = get_proxy_method(ctx, &method, obj, JS_ATOM_setPrototypeOf);
+ if (!s)
+ return -1;
+ if (JS_IsUndefined(method))
+ return JS_SetPrototypeInternal(ctx, s->target, proto_val, throw_flag);
+ args[0] = s->target;
+ args[1] = proto_val;
+ ret = JS_CallFree(ctx, method, s->handler, 2, args);
+ if (JS_IsException(ret))
+ return -1;
+ res = JS_ToBoolFree(ctx, ret);
+ if (!res) {
+ if (throw_flag) {
+ JS_ThrowTypeError(ctx, "proxy: bad prototype");
+ return -1;
+ } else {
+ return FALSE;
+ }
+ }
+ res2 = JS_IsExtensible(ctx, s->target);
+ if (res2 < 0)
+ return -1;
+ if (!res2) {
+ proto1 = JS_GetPrototype(ctx, s->target);
+ if (JS_IsException(proto1))
+ return -1;
+ if (JS_VALUE_GET_OBJ(proto_val) != JS_VALUE_GET_OBJ(proto1)) {
+ JS_FreeValue(ctx, proto1);
+ JS_ThrowTypeError(ctx, "proxy: inconsistent prototype");
+ return -1;
+ }
+ JS_FreeValue(ctx, proto1);
+ }
+ return TRUE;
+}
+
+static int js_proxy_isExtensible(JSContext *ctx, JSValueConst obj)
+{
+ JSProxyData *s;
+ JSValue method, ret;
+ BOOL res;
+ int res2;
+
+ s = get_proxy_method(ctx, &method, obj, JS_ATOM_isExtensible);
+ if (!s)
+ return -1;
+ if (JS_IsUndefined(method))
+ return JS_IsExtensible(ctx, s->target);
+ ret = JS_CallFree(ctx, method, s->handler, 1, (JSValueConst *)&s->target);
+ if (JS_IsException(ret))
+ return -1;
+ res = JS_ToBoolFree(ctx, ret);
+ res2 = JS_IsExtensible(ctx, s->target);
+ if (res2 < 0)
+ return res2;
+ if (res != res2) {
+ JS_ThrowTypeError(ctx, "proxy: inconsistent isExtensible");
+ return -1;
+ }
+ return res;
+}
+
+static int js_proxy_preventExtensions(JSContext *ctx, JSValueConst obj)
+{
+ JSProxyData *s;
+ JSValue method, ret;
+ BOOL res;
+ int res2;
+
+ s = get_proxy_method(ctx, &method, obj, JS_ATOM_preventExtensions);
+ if (!s)
+ return -1;
+ if (JS_IsUndefined(method))
+ return JS_PreventExtensions(ctx, s->target);
+ ret = JS_CallFree(ctx, method, s->handler, 1, (JSValueConst *)&s->target);
+ if (JS_IsException(ret))
+ return -1;
+ res = JS_ToBoolFree(ctx, ret);
+ if (res) {
+ res2 = JS_IsExtensible(ctx, s->target);
+ if (res2 < 0)
+ return res2;
+ if (res2) {
+ JS_ThrowTypeError(ctx, "proxy: inconsistent preventExtensions");
+ return -1;
+ }
+ }
+ return res;
+}
+
+static int js_proxy_has(JSContext *ctx, JSValueConst obj, JSAtom atom)
+{
+ JSProxyData *s;
+ JSValue method, ret1, atom_val;
+ int ret, res;
+ JSObject *p;
+ JSValueConst args[2];
+ BOOL res2;
+
+ s = get_proxy_method(ctx, &method, obj, JS_ATOM_has);
+ if (!s)
+ return -1;
+ if (JS_IsUndefined(method))
+ return JS_HasProperty(ctx, s->target, atom);
+ atom_val = JS_AtomToValue(ctx, atom);
+ if (JS_IsException(atom_val)) {
+ JS_FreeValue(ctx, method);
+ return -1;
+ }
+ args[0] = s->target;
+ args[1] = atom_val;
+ ret1 = JS_CallFree(ctx, method, s->handler, 2, args);
+ JS_FreeValue(ctx, atom_val);
+ if (JS_IsException(ret1))
+ return -1;
+ ret = JS_ToBoolFree(ctx, ret1);
+ if (!ret) {
+ JSPropertyDescriptor desc;
+ p = JS_VALUE_GET_OBJ(s->target);
+ res = JS_GetOwnPropertyInternal(ctx, &desc, p, atom);
+ if (res < 0)
+ return -1;
+ if (res) {
+ res2 = !(desc.flags & JS_PROP_CONFIGURABLE);
+ js_free_desc(ctx, &desc);
+ if (res2 || !p->extensible) {
+ JS_ThrowTypeError(ctx, "proxy: inconsistent has");
+ return -1;
+ }
+ }
+ }
+ return ret;
+}
+
+static JSValue js_proxy_get(JSContext *ctx, JSValueConst obj, JSAtom atom,
+ JSValueConst receiver)
+{
+ JSProxyData *s;
+ JSValue method, ret, atom_val;
+ int res;
+ JSValueConst args[3];
+ JSPropertyDescriptor desc;
+
+ s = get_proxy_method(ctx, &method, obj, JS_ATOM_get);
+ if (!s)
+ return JS_EXCEPTION;
+ /* Note: recursion is possible thru the prototype of s->target */
+ if (JS_IsUndefined(method))
+ return JS_GetPropertyInternal(ctx, s->target, atom, receiver, FALSE);
+ atom_val = JS_AtomToValue(ctx, atom);
+ if (JS_IsException(atom_val)) {
+ JS_FreeValue(ctx, method);
+ return JS_EXCEPTION;
+ }
+ args[0] = s->target;
+ args[1] = atom_val;
+ args[2] = receiver;
+ ret = JS_CallFree(ctx, method, s->handler, 3, args);
+ JS_FreeValue(ctx, atom_val);
+ if (JS_IsException(ret))
+ return JS_EXCEPTION;
+ res = JS_GetOwnPropertyInternal(ctx, &desc, JS_VALUE_GET_OBJ(s->target), atom);
+ if (res < 0)
+ return JS_EXCEPTION;
+ if (res) {
+ if ((desc.flags & (JS_PROP_GETSET | JS_PROP_CONFIGURABLE | JS_PROP_WRITABLE)) == 0) {
+ if (!js_same_value(ctx, desc.value, ret)) {
+ goto fail;
+ }
+ } else if ((desc.flags & (JS_PROP_GETSET | JS_PROP_CONFIGURABLE)) == JS_PROP_GETSET) {
+ if (JS_IsUndefined(desc.getter) && !JS_IsUndefined(ret)) {
+ fail:
+ js_free_desc(ctx, &desc);
+ JS_FreeValue(ctx, ret);
+ return JS_ThrowTypeError(ctx, "proxy: inconsistent get");
+ }
+ }
+ js_free_desc(ctx, &desc);
+ }
+ return ret;
+}
+
+static int js_proxy_set(JSContext *ctx, JSValueConst obj, JSAtom atom,
+ JSValueConst value, JSValueConst receiver, int flags)
+{
+ JSProxyData *s;
+ JSValue method, ret1, atom_val;
+ int ret, res;
+ JSValueConst args[4];
+
+ s = get_proxy_method(ctx, &method, obj, JS_ATOM_set);
+ if (!s)
+ return -1;
+ if (JS_IsUndefined(method)) {
+ return JS_SetPropertyInternal(ctx, s->target, atom,
+ JS_DupValue(ctx, value), receiver,
+ flags);
+ }
+ atom_val = JS_AtomToValue(ctx, atom);
+ if (JS_IsException(atom_val)) {
+ JS_FreeValue(ctx, method);
+ return -1;
+ }
+ args[0] = s->target;
+ args[1] = atom_val;
+ args[2] = value;
+ args[3] = receiver;
+ ret1 = JS_CallFree(ctx, method, s->handler, 4, args);
+ JS_FreeValue(ctx, atom_val);
+ if (JS_IsException(ret1))
+ return -1;
+ ret = JS_ToBoolFree(ctx, ret1);
+ if (ret) {
+ JSPropertyDescriptor desc;
+ res = JS_GetOwnPropertyInternal(ctx, &desc, JS_VALUE_GET_OBJ(s->target), atom);
+ if (res < 0)
+ return -1;
+ if (res) {
+ if ((desc.flags & (JS_PROP_GETSET | JS_PROP_CONFIGURABLE | JS_PROP_WRITABLE)) == 0) {
+ if (!js_same_value(ctx, desc.value, value)) {
+ goto fail;
+ }
+ } else if ((desc.flags & (JS_PROP_GETSET | JS_PROP_CONFIGURABLE)) == JS_PROP_GETSET && JS_IsUndefined(desc.setter)) {
+ fail:
+ js_free_desc(ctx, &desc);
+ JS_ThrowTypeError(ctx, "proxy: inconsistent set");
+ return -1;
+ }
+ js_free_desc(ctx, &desc);
+ }
+ } else {
+ if ((flags & JS_PROP_THROW) ||
+ ((flags & JS_PROP_THROW_STRICT) && is_strict_mode(ctx))) {
+ JS_ThrowTypeError(ctx, "proxy: cannot set property");
+ return -1;
+ }
+ }
+ return ret;
+}
+
+static JSValue js_create_desc(JSContext *ctx, JSValueConst val,
+ JSValueConst getter, JSValueConst setter,
+ int flags)
+{
+ JSValue ret;
+ ret = JS_NewObject(ctx);
+ if (JS_IsException(ret))
+ return ret;
+ if (flags & JS_PROP_HAS_GET) {
+ JS_DefinePropertyValue(ctx, ret, JS_ATOM_get, JS_DupValue(ctx, getter),
+ JS_PROP_C_W_E);
+ }
+ if (flags & JS_PROP_HAS_SET) {
+ JS_DefinePropertyValue(ctx, ret, JS_ATOM_set, JS_DupValue(ctx, setter),
+ JS_PROP_C_W_E);
+ }
+ if (flags & JS_PROP_HAS_VALUE) {
+ JS_DefinePropertyValue(ctx, ret, JS_ATOM_value, JS_DupValue(ctx, val),
+ JS_PROP_C_W_E);
+ }
+ if (flags & JS_PROP_HAS_WRITABLE) {
+ JS_DefinePropertyValue(ctx, ret, JS_ATOM_writable,
+ JS_NewBool(ctx, flags & JS_PROP_WRITABLE),
+ JS_PROP_C_W_E);
+ }
+ if (flags & JS_PROP_HAS_ENUMERABLE) {
+ JS_DefinePropertyValue(ctx, ret, JS_ATOM_enumerable,
+ JS_NewBool(ctx, flags & JS_PROP_ENUMERABLE),
+ JS_PROP_C_W_E);
+ }
+ if (flags & JS_PROP_HAS_CONFIGURABLE) {
+ JS_DefinePropertyValue(ctx, ret, JS_ATOM_configurable,
+ JS_NewBool(ctx, flags & JS_PROP_CONFIGURABLE),
+ JS_PROP_C_W_E);
+ }
+ return ret;
+}
+
+static int js_proxy_get_own_property(JSContext *ctx, JSPropertyDescriptor *pdesc,
+ JSValueConst obj, JSAtom prop)
+{
+ JSProxyData *s;
+ JSValue method, trap_result_obj, prop_val;
+ int res, target_desc_ret, ret;
+ JSObject *p;
+ JSValueConst args[2];
+ JSPropertyDescriptor result_desc, target_desc;
+
+ s = get_proxy_method(ctx, &method, obj, JS_ATOM_getOwnPropertyDescriptor);
+ if (!s)
+ return -1;
+ p = JS_VALUE_GET_OBJ(s->target);
+ if (JS_IsUndefined(method)) {
+ return JS_GetOwnPropertyInternal(ctx, pdesc, p, prop);
+ }
+ prop_val = JS_AtomToValue(ctx, prop);
+ if (JS_IsException(prop_val)) {
+ JS_FreeValue(ctx, method);
+ return -1;
+ }
+ args[0] = s->target;
+ args[1] = prop_val;
+ trap_result_obj = JS_CallFree(ctx, method, s->handler, 2, args);
+ JS_FreeValue(ctx, prop_val);
+ if (JS_IsException(trap_result_obj))
+ return -1;
+ if (!JS_IsObject(trap_result_obj) && !JS_IsUndefined(trap_result_obj)) {
+ JS_FreeValue(ctx, trap_result_obj);
+ goto fail;
+ }
+ target_desc_ret = JS_GetOwnPropertyInternal(ctx, &target_desc, p, prop);
+ if (target_desc_ret < 0) {
+ JS_FreeValue(ctx, trap_result_obj);
+ return -1;
+ }
+ if (target_desc_ret)
+ js_free_desc(ctx, &target_desc);
+ if (JS_IsUndefined(trap_result_obj)) {
+ if (target_desc_ret) {
+ if (!(target_desc.flags & JS_PROP_CONFIGURABLE) || !p->extensible)
+ goto fail;
+ }
+ ret = FALSE;
+ } else {
+ int flags1, extensible_target;
+ extensible_target = JS_IsExtensible(ctx, s->target);
+ if (extensible_target < 0) {
+ JS_FreeValue(ctx, trap_result_obj);
+ return -1;
+ }
+ res = js_obj_to_desc(ctx, &result_desc, trap_result_obj);
+ JS_FreeValue(ctx, trap_result_obj);
+ if (res < 0)
+ return -1;
+
+ if (target_desc_ret) {
+ /* convert result_desc.flags to defineProperty flags */
+ flags1 = result_desc.flags | JS_PROP_HAS_CONFIGURABLE | JS_PROP_HAS_ENUMERABLE;
+ if (result_desc.flags & JS_PROP_GETSET)
+ flags1 |= JS_PROP_HAS_GET | JS_PROP_HAS_SET;
+ else
+ flags1 |= JS_PROP_HAS_VALUE | JS_PROP_HAS_WRITABLE;
+ /* XXX: not complete check: need to compare value &
+ getter/setter as in defineproperty */
+ if (!check_define_prop_flags(target_desc.flags, flags1))
+ goto fail1;
+ } else {
+ if (!extensible_target)
+ goto fail1;
+ }
+ if (!(result_desc.flags & JS_PROP_CONFIGURABLE)) {
+ if (!target_desc_ret || (target_desc.flags & JS_PROP_CONFIGURABLE))
+ goto fail1;
+ if ((result_desc.flags &
+ (JS_PROP_GETSET | JS_PROP_WRITABLE)) == 0 &&
+ target_desc_ret &&
+ (target_desc.flags & JS_PROP_WRITABLE) != 0) {
+ /* proxy-missing-checks */
+ fail1:
+ js_free_desc(ctx, &result_desc);
+ fail:
+ JS_ThrowTypeError(ctx, "proxy: inconsistent getOwnPropertyDescriptor");
+ return -1;
+ }
+ }
+ ret = TRUE;
+ if (pdesc) {
+ *pdesc = result_desc;
+ } else {
+ js_free_desc(ctx, &result_desc);
+ }
+ }
+ return ret;
+}
+
+static int js_proxy_define_own_property(JSContext *ctx, JSValueConst obj,
+ JSAtom prop, JSValueConst val,
+ JSValueConst getter, JSValueConst setter,
+ int flags)
+{
+ JSProxyData *s;
+ JSValue method, ret1, prop_val, desc_val;
+ int res, ret;
+ JSObject *p;
+ JSValueConst args[3];
+ JSPropertyDescriptor desc;
+ BOOL setting_not_configurable;
+
+ s = get_proxy_method(ctx, &method, obj, JS_ATOM_defineProperty);
+ if (!s)
+ return -1;
+ if (JS_IsUndefined(method)) {
+ return JS_DefineProperty(ctx, s->target, prop, val, getter, setter, flags);
+ }
+ prop_val = JS_AtomToValue(ctx, prop);
+ if (JS_IsException(prop_val)) {
+ JS_FreeValue(ctx, method);
+ return -1;
+ }
+ desc_val = js_create_desc(ctx, val, getter, setter, flags);
+ if (JS_IsException(desc_val)) {
+ JS_FreeValue(ctx, prop_val);
+ JS_FreeValue(ctx, method);
+ return -1;
+ }
+ args[0] = s->target;
+ args[1] = prop_val;
+ args[2] = desc_val;
+ ret1 = JS_CallFree(ctx, method, s->handler, 3, args);
+ JS_FreeValue(ctx, prop_val);
+ JS_FreeValue(ctx, desc_val);
+ if (JS_IsException(ret1))
+ return -1;
+ ret = JS_ToBoolFree(ctx, ret1);
+ if (!ret) {
+ if (flags & JS_PROP_THROW) {
+ JS_ThrowTypeError(ctx, "proxy: defineProperty exception");
+ return -1;
+ } else {
+ return 0;
+ }
+ }
+ p = JS_VALUE_GET_OBJ(s->target);
+ res = JS_GetOwnPropertyInternal(ctx, &desc, p, prop);
+ if (res < 0)
+ return -1;
+ setting_not_configurable = ((flags & (JS_PROP_HAS_CONFIGURABLE |
+ JS_PROP_CONFIGURABLE)) ==
+ JS_PROP_HAS_CONFIGURABLE);
+ if (!res) {
+ if (!p->extensible || setting_not_configurable)
+ goto fail;
+ } else {
+ if (!check_define_prop_flags(desc.flags, flags) ||
+ ((desc.flags & JS_PROP_CONFIGURABLE) && setting_not_configurable)) {
+ goto fail1;
+ }
+ if (flags & (JS_PROP_HAS_GET | JS_PROP_HAS_SET)) {
+ if ((desc.flags & (JS_PROP_GETSET | JS_PROP_CONFIGURABLE)) ==
+ JS_PROP_GETSET) {
+ if ((flags & JS_PROP_HAS_GET) &&
+ !js_same_value(ctx, getter, desc.getter)) {
+ goto fail1;
+ }
+ if ((flags & JS_PROP_HAS_SET) &&
+ !js_same_value(ctx, setter, desc.setter)) {
+ goto fail1;
+ }
+ }
+ } else if (flags & JS_PROP_HAS_VALUE) {
+ if ((desc.flags & (JS_PROP_CONFIGURABLE | JS_PROP_WRITABLE)) ==
+ JS_PROP_WRITABLE && !(flags & JS_PROP_WRITABLE)) {
+ /* missing-proxy-check feature */
+ goto fail1;
+ } else if ((desc.flags & (JS_PROP_CONFIGURABLE | JS_PROP_WRITABLE)) == 0 &&
+ !js_same_value(ctx, val, desc.value)) {
+ goto fail1;
+ }
+ }
+ if (flags & JS_PROP_HAS_WRITABLE) {
+ if ((desc.flags & (JS_PROP_GETSET | JS_PROP_CONFIGURABLE |
+ JS_PROP_WRITABLE)) == JS_PROP_WRITABLE) {
+ /* proxy-missing-checks */
+ fail1:
+ js_free_desc(ctx, &desc);
+ fail:
+ JS_ThrowTypeError(ctx, "proxy: inconsistent defineProperty");
+ return -1;
+ }
+ }
+ js_free_desc(ctx, &desc);
+ }
+ return 1;
+}
+
+static int js_proxy_delete_property(JSContext *ctx, JSValueConst obj,
+ JSAtom atom)
+{
+ JSProxyData *s;
+ JSValue method, ret, atom_val;
+ int res, res2, is_extensible;
+ JSValueConst args[2];
+
+ s = get_proxy_method(ctx, &method, obj, JS_ATOM_deleteProperty);
+ if (!s)
+ return -1;
+ if (JS_IsUndefined(method)) {
+ return JS_DeleteProperty(ctx, s->target, atom, 0);
+ }
+ atom_val = JS_AtomToValue(ctx, atom);;
+ if (JS_IsException(atom_val)) {
+ JS_FreeValue(ctx, method);
+ return -1;
+ }
+ args[0] = s->target;
+ args[1] = atom_val;
+ ret = JS_CallFree(ctx, method, s->handler, 2, args);
+ JS_FreeValue(ctx, atom_val);
+ if (JS_IsException(ret))
+ return -1;
+ res = JS_ToBoolFree(ctx, ret);
+ if (res) {
+ JSPropertyDescriptor desc;
+ res2 = JS_GetOwnPropertyInternal(ctx, &desc, JS_VALUE_GET_OBJ(s->target), atom);
+ if (res2 < 0)
+ return -1;
+ if (res2) {
+ if (!(desc.flags & JS_PROP_CONFIGURABLE))
+ goto fail;
+ is_extensible = JS_IsExtensible(ctx, s->target);
+ if (is_extensible < 0)
+ goto fail1;
+ if (!is_extensible) {
+ /* proxy-missing-checks */
+ fail:
+ JS_ThrowTypeError(ctx, "proxy: inconsistent deleteProperty");
+ fail1:
+ js_free_desc(ctx, &desc);
+ return -1;
+ }
+ js_free_desc(ctx, &desc);
+ }
+ }
+ return res;
+}
+
+/* return the index of the property or -1 if not found */
+static int find_prop_key(const JSPropertyEnum *tab, int n, JSAtom atom)
+{
+ int i;
+ for(i = 0; i < n; i++) {
+ if (tab[i].atom == atom)
+ return i;
+ }
+ return -1;
+}
+
+static int js_proxy_get_own_property_names(JSContext *ctx,
+ JSPropertyEnum **ptab,
+ uint32_t *plen,
+ JSValueConst obj)
+{
+ JSProxyData *s;
+ JSValue method, prop_array, val;
+ uint32_t len, i, len2;
+ JSPropertyEnum *tab, *tab2;
+ JSAtom atom;
+ JSPropertyDescriptor desc;
+ int res, is_extensible, idx;
+
+ s = get_proxy_method(ctx, &method, obj, JS_ATOM_ownKeys);
+ if (!s)
+ return -1;
+ if (JS_IsUndefined(method)) {
+ return JS_GetOwnPropertyNamesInternal(ctx, ptab, plen,
+ JS_VALUE_GET_OBJ(s->target),
+ JS_GPN_STRING_MASK | JS_GPN_SYMBOL_MASK);
+ }
+ prop_array = JS_CallFree(ctx, method, s->handler, 1, (JSValueConst *)&s->target);
+ if (JS_IsException(prop_array))
+ return -1;
+ tab = NULL;
+ len = 0;
+ tab2 = NULL;
+ len2 = 0;
+ if (js_get_length32(ctx, &len, prop_array))
+ goto fail;
+ if (len > 0) {
+ tab = js_mallocz(ctx, sizeof(tab[0]) * len);
+ if (!tab)
+ goto fail;
+ }
+ for(i = 0; i < len; i++) {
+ val = JS_GetPropertyUint32(ctx, prop_array, i);
+ if (JS_IsException(val))
+ goto fail;
+ if (!JS_IsString(val) && !JS_IsSymbol(val)) {
+ JS_FreeValue(ctx, val);
+ JS_ThrowTypeError(ctx, "proxy: properties must be strings or symbols");
+ goto fail;
+ }
+ atom = JS_ValueToAtom(ctx, val);
+ JS_FreeValue(ctx, val);
+ if (atom == JS_ATOM_NULL)
+ goto fail;
+ tab[i].atom = atom;
+ tab[i].is_enumerable = FALSE; /* XXX: redundant? */
+ }
+
+ /* check duplicate properties (XXX: inefficient, could store the
+ * properties an a temporary object to use the hash) */
+ for(i = 1; i < len; i++) {
+ if (find_prop_key(tab, i, tab[i].atom) >= 0) {
+ JS_ThrowTypeError(ctx, "proxy: duplicate property");
+ goto fail;
+ }
+ }
+
+ is_extensible = JS_IsExtensible(ctx, s->target);
+ if (is_extensible < 0)
+ goto fail;
+
+ /* check if there are non configurable properties */
+ if (s->is_revoked) {
+ JS_ThrowTypeErrorRevokedProxy(ctx);
+ goto fail;
+ }
+ if (JS_GetOwnPropertyNamesInternal(ctx, &tab2, &len2, JS_VALUE_GET_OBJ(s->target),
+ JS_GPN_STRING_MASK | JS_GPN_SYMBOL_MASK))
+ goto fail;
+ for(i = 0; i < len2; i++) {
+ if (s->is_revoked) {
+ JS_ThrowTypeErrorRevokedProxy(ctx);
+ goto fail;
+ }
+ res = JS_GetOwnPropertyInternal(ctx, &desc, JS_VALUE_GET_OBJ(s->target),
+ tab2[i].atom);
+ if (res < 0)
+ goto fail;
+ if (res) { /* safety, property should be found */
+ js_free_desc(ctx, &desc);
+ if (!(desc.flags & JS_PROP_CONFIGURABLE) || !is_extensible) {
+ idx = find_prop_key(tab, len, tab2[i].atom);
+ if (idx < 0) {
+ JS_ThrowTypeError(ctx, "proxy: target property must be present in proxy ownKeys");
+ goto fail;
+ }
+ /* mark the property as found */
+ if (!is_extensible)
+ tab[idx].is_enumerable = TRUE;
+ }
+ }
+ }
+ if (!is_extensible) {
+ /* check that all property in 'tab' were checked */
+ for(i = 0; i < len; i++) {
+ if (!tab[i].is_enumerable) {
+ JS_ThrowTypeError(ctx, "proxy: property not present in target were returned by non extensible proxy");
+ goto fail;
+ }
+ }
+ }
+
+ js_free_prop_enum(ctx, tab2, len2);
+ JS_FreeValue(ctx, prop_array);
+ *ptab = tab;
+ *plen = len;
+ return 0;
+ fail:
+ js_free_prop_enum(ctx, tab2, len2);
+ js_free_prop_enum(ctx, tab, len);
+ JS_FreeValue(ctx, prop_array);
+ return -1;
+}
+
+static JSValue js_proxy_call_constructor(JSContext *ctx, JSValueConst func_obj,
+ JSValueConst new_target,
+ int argc, JSValueConst *argv)
+{
+ JSProxyData *s;
+ JSValue method, arg_array, ret;
+ JSValueConst args[3];
+
+ s = get_proxy_method(ctx, &method, func_obj, JS_ATOM_construct);
+ if (!s)
+ return JS_EXCEPTION;
+ if (!JS_IsConstructor(ctx, s->target))
+ return JS_ThrowTypeError(ctx, "not a constructor");
+ if (JS_IsUndefined(method))
+ return JS_CallConstructor2(ctx, s->target, new_target, argc, argv);
+ arg_array = js_create_array(ctx, argc, argv);
+ if (JS_IsException(arg_array)) {
+ ret = JS_EXCEPTION;
+ goto fail;
+ }
+ args[0] = s->target;
+ args[1] = arg_array;
+ args[2] = new_target;
+ ret = JS_Call(ctx, method, s->handler, 3, args);
+ if (!JS_IsException(ret) && JS_VALUE_GET_TAG(ret) != JS_TAG_OBJECT) {
+ JS_FreeValue(ctx, ret);
+ ret = JS_ThrowTypeErrorNotAnObject(ctx);
+ }
+ fail:
+ JS_FreeValue(ctx, method);
+ JS_FreeValue(ctx, arg_array);
+ return ret;
+}
+
+static JSValue js_proxy_call(JSContext *ctx, JSValueConst func_obj,
+ JSValueConst this_obj,
+ int argc, JSValueConst *argv, int flags)
+{
+ JSProxyData *s;
+ JSValue method, arg_array, ret;
+ JSValueConst args[3];
+
+ if (flags & JS_CALL_FLAG_CONSTRUCTOR)
+ return js_proxy_call_constructor(ctx, func_obj, this_obj, argc, argv);
+
+ s = get_proxy_method(ctx, &method, func_obj, JS_ATOM_apply);
+ if (!s)
+ return JS_EXCEPTION;
+ if (!s->is_func) {
+ JS_FreeValue(ctx, method);
+ return JS_ThrowTypeError(ctx, "not a function");
+ }
+ if (JS_IsUndefined(method))
+ return JS_Call(ctx, s->target, this_obj, argc, argv);
+ arg_array = js_create_array(ctx, argc, argv);
+ if (JS_IsException(arg_array)) {
+ ret = JS_EXCEPTION;
+ goto fail;
+ }
+ args[0] = s->target;
+ args[1] = this_obj;
+ args[2] = arg_array;
+ ret = JS_Call(ctx, method, s->handler, 3, args);
+ fail:
+ JS_FreeValue(ctx, method);
+ JS_FreeValue(ctx, arg_array);
+ return ret;
+}
+
+static int js_proxy_isArray(JSContext *ctx, JSValueConst obj)
+{
+ JSProxyData *s = JS_GetOpaque(obj, JS_CLASS_PROXY);
+ if (!s)
+ return FALSE;
+ if (js_check_stack_overflow(ctx->rt, 0)) {
+ JS_ThrowStackOverflow(ctx);
+ return -1;
+ }
+ if (s->is_revoked) {
+ JS_ThrowTypeErrorRevokedProxy(ctx);
+ return -1;
+ }
+ return JS_IsArray(ctx, s->target);
+}
+
+static const JSClassExoticMethods js_proxy_exotic_methods = {
+ .get_own_property = js_proxy_get_own_property,
+ .define_own_property = js_proxy_define_own_property,
+ .delete_property = js_proxy_delete_property,
+ .get_own_property_names = js_proxy_get_own_property_names,
+ .has_property = js_proxy_has,
+ .get_property = js_proxy_get,
+ .set_property = js_proxy_set,
+};
+
+static JSValue js_proxy_constructor(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValueConst target, handler;
+ JSValue obj;
+ JSProxyData *s;
+
+ target = argv[0];
+ handler = argv[1];
+ if (JS_VALUE_GET_TAG(target) != JS_TAG_OBJECT ||
+ JS_VALUE_GET_TAG(handler) != JS_TAG_OBJECT)
+ return JS_ThrowTypeErrorNotAnObject(ctx);
+
+ obj = JS_NewObjectProtoClass(ctx, JS_NULL, JS_CLASS_PROXY);
+ if (JS_IsException(obj))
+ return obj;
+ s = js_malloc(ctx, sizeof(JSProxyData));
+ if (!s) {
+ JS_FreeValue(ctx, obj);
+ return JS_EXCEPTION;
+ }
+ s->target = JS_DupValue(ctx, target);
+ s->handler = JS_DupValue(ctx, handler);
+ s->is_func = JS_IsFunction(ctx, target);
+ s->is_revoked = FALSE;
+ JS_SetOpaque(obj, s);
+ JS_SetConstructorBit(ctx, obj, JS_IsConstructor(ctx, target));
+ return obj;
+}
+
+static JSValue js_proxy_revoke(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int magic,
+ JSValue *func_data)
+{
+ JSProxyData *s = JS_GetOpaque(func_data[0], JS_CLASS_PROXY);
+ if (s) {
+ /* We do not free the handler and target in case they are
+ referenced as constants in the C call stack */
+ s->is_revoked = TRUE;
+ JS_FreeValue(ctx, func_data[0]);
+ func_data[0] = JS_NULL;
+ }
+ return JS_UNDEFINED;
+}
+
+static JSValue js_proxy_revoke_constructor(JSContext *ctx,
+ JSValueConst proxy_obj)
+{
+ return JS_NewCFunctionData(ctx, js_proxy_revoke, 0, 0, 1, &proxy_obj);
+}
+
+static JSValue js_proxy_revocable(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValue proxy_obj, revoke_obj = JS_UNDEFINED, obj;
+
+ proxy_obj = js_proxy_constructor(ctx, JS_UNDEFINED, argc, argv);
+ if (JS_IsException(proxy_obj))
+ goto fail;
+ revoke_obj = js_proxy_revoke_constructor(ctx, proxy_obj);
+ if (JS_IsException(revoke_obj))
+ goto fail;
+ obj = JS_NewObject(ctx);
+ if (JS_IsException(obj))
+ goto fail;
+ // XXX: exceptions?
+ JS_DefinePropertyValue(ctx, obj, JS_ATOM_proxy, proxy_obj, JS_PROP_C_W_E);
+ JS_DefinePropertyValue(ctx, obj, JS_ATOM_revoke, revoke_obj, JS_PROP_C_W_E);
+ return obj;
+ fail:
+ JS_FreeValue(ctx, proxy_obj);
+ JS_FreeValue(ctx, revoke_obj);
+ return JS_EXCEPTION;
+}
+
+static const JSCFunctionListEntry js_proxy_funcs[] = {
+ JS_CFUNC_DEF("revocable", 2, js_proxy_revocable ),
+};
+
+static const JSClassShortDef js_proxy_class_def[] = {
+ { JS_ATOM_Object, js_proxy_finalizer, js_proxy_mark }, /* JS_CLASS_PROXY */
+};
+
+void JS_AddIntrinsicProxy(JSContext *ctx)
+{
+ JSRuntime *rt = ctx->rt;
+ JSValue obj1;
+
+ if (!JS_IsRegisteredClass(rt, JS_CLASS_PROXY)) {
+ init_class_range(rt, js_proxy_class_def, JS_CLASS_PROXY,
+ countof(js_proxy_class_def));
+ rt->class_array[JS_CLASS_PROXY].exotic = &js_proxy_exotic_methods;
+ rt->class_array[JS_CLASS_PROXY].call = js_proxy_call;
+ }
+
+ obj1 = JS_NewCFunction2(ctx, js_proxy_constructor, "Proxy", 2,
+ JS_CFUNC_constructor, 0);
+ JS_SetConstructorBit(ctx, obj1, TRUE);
+ JS_SetPropertyFunctionList(ctx, obj1, js_proxy_funcs,
+ countof(js_proxy_funcs));
+ JS_DefinePropertyValueStr(ctx, ctx->global_obj, "Proxy",
+ obj1, JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE);
+}
+
+/* Symbol */
+
+static JSValue js_symbol_constructor(JSContext *ctx, JSValueConst new_target,
+ int argc, JSValueConst *argv)
+{
+ JSValue str;
+ JSString *p;
+
+ if (!JS_IsUndefined(new_target))
+ return JS_ThrowTypeError(ctx, "not a constructor");
+ if (argc == 0 || JS_IsUndefined(argv[0])) {
+ p = NULL;
+ } else {
+ str = JS_ToString(ctx, argv[0]);
+ if (JS_IsException(str))
+ return JS_EXCEPTION;
+ p = JS_VALUE_GET_STRING(str);
+ }
+ return JS_NewSymbol(ctx, p, JS_ATOM_TYPE_SYMBOL);
+}
+
+static JSValue js_thisSymbolValue(JSContext *ctx, JSValueConst this_val)
+{
+ if (JS_VALUE_GET_TAG(this_val) == JS_TAG_SYMBOL)
+ return JS_DupValue(ctx, this_val);
+
+ if (JS_VALUE_GET_TAG(this_val) == JS_TAG_OBJECT) {
+ JSObject *p = JS_VALUE_GET_OBJ(this_val);
+ if (p->class_id == JS_CLASS_SYMBOL) {
+ if (JS_VALUE_GET_TAG(p->u.object_data) == JS_TAG_SYMBOL)
+ return JS_DupValue(ctx, p->u.object_data);
+ }
+ }
+ return JS_ThrowTypeError(ctx, "not a symbol");
+}
+
+static JSValue js_symbol_toString(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValue val, ret;
+ val = js_thisSymbolValue(ctx, this_val);
+ if (JS_IsException(val))
+ return val;
+ /* XXX: use JS_ToStringInternal() with a flags */
+ ret = js_string_constructor(ctx, JS_UNDEFINED, 1, (JSValueConst *)&val);
+ JS_FreeValue(ctx, val);
+ return ret;
+}
+
+static JSValue js_symbol_valueOf(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ return js_thisSymbolValue(ctx, this_val);
+}
+
+static JSValue js_symbol_get_description(JSContext *ctx, JSValueConst this_val)
+{
+ JSValue val, ret;
+ JSAtomStruct *p;
+
+ val = js_thisSymbolValue(ctx, this_val);
+ if (JS_IsException(val))
+ return val;
+ p = JS_VALUE_GET_PTR(val);
+ if (p->len == 0 && p->is_wide_char != 0) {
+ ret = JS_UNDEFINED;
+ } else {
+ ret = JS_AtomToString(ctx, js_get_atom_index(ctx->rt, p));
+ }
+ JS_FreeValue(ctx, val);
+ return ret;
+}
+
+static const JSCFunctionListEntry js_symbol_proto_funcs[] = {
+ JS_CFUNC_DEF("toString", 0, js_symbol_toString ),
+ JS_CFUNC_DEF("valueOf", 0, js_symbol_valueOf ),
+ // XXX: should have writable: false
+ JS_CFUNC_DEF("[Symbol.toPrimitive]", 1, js_symbol_valueOf ),
+ JS_PROP_STRING_DEF("[Symbol.toStringTag]", "Symbol", JS_PROP_CONFIGURABLE ),
+ JS_CGETSET_DEF("description", js_symbol_get_description, NULL ),
+};
+
+static JSValue js_symbol_for(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValue str;
+
+ str = JS_ToString(ctx, argv[0]);
+ if (JS_IsException(str))
+ return JS_EXCEPTION;
+ return JS_NewSymbol(ctx, JS_VALUE_GET_STRING(str), JS_ATOM_TYPE_GLOBAL_SYMBOL);
+}
+
+static JSValue js_symbol_keyFor(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSAtomStruct *p;
+
+ if (!JS_IsSymbol(argv[0]))
+ return JS_ThrowTypeError(ctx, "not a symbol");
+ p = JS_VALUE_GET_PTR(argv[0]);
+ if (p->atom_type != JS_ATOM_TYPE_GLOBAL_SYMBOL)
+ return JS_UNDEFINED;
+ return JS_DupValue(ctx, JS_MKPTR(JS_TAG_STRING, p));
+}
+
+static const JSCFunctionListEntry js_symbol_funcs[] = {
+ JS_CFUNC_DEF("for", 1, js_symbol_for ),
+ JS_CFUNC_DEF("keyFor", 1, js_symbol_keyFor ),
+};
+
+/* Set/Map/WeakSet/WeakMap */
+
+typedef struct JSMapRecord {
+ int ref_count; /* used during enumeration to avoid freeing the record */
+ BOOL empty; /* TRUE if the record is deleted */
+ struct JSMapState *map;
+ struct JSMapRecord *next_weak_ref;
+ struct list_head link;
+ struct list_head hash_link;
+ JSValue key;
+ JSValue value;
+} JSMapRecord;
+
+typedef struct JSMapState {
+ BOOL is_weak; /* TRUE if WeakSet/WeakMap */
+ struct list_head records; /* list of JSMapRecord.link */
+ uint32_t record_count;
+ struct list_head *hash_table;
+ uint32_t hash_size; /* must be a power of two */
+ uint32_t record_count_threshold; /* count at which a hash table
+ resize is needed */
+} JSMapState;
+
+#define MAGIC_SET (1 << 0)
+#define MAGIC_WEAK (1 << 1)
+
+static JSValue js_map_constructor(JSContext *ctx, JSValueConst new_target,
+ int argc, JSValueConst *argv, int magic)
+{
+ JSMapState *s;
+ JSValue obj, adder = JS_UNDEFINED, iter = JS_UNDEFINED, next_method = JS_UNDEFINED;
+ JSValueConst arr;
+ BOOL is_set, is_weak;
+
+ is_set = magic & MAGIC_SET;
+ is_weak = ((magic & MAGIC_WEAK) != 0);
+ obj = js_create_from_ctor(ctx, new_target, JS_CLASS_MAP + magic);
+ if (JS_IsException(obj))
+ return JS_EXCEPTION;
+ s = js_mallocz(ctx, sizeof(*s));
+ if (!s)
+ goto fail;
+ init_list_head(&s->records);
+ s->is_weak = is_weak;
+ JS_SetOpaque(obj, s);
+ s->hash_size = 1;
+ s->hash_table = js_malloc(ctx, sizeof(s->hash_table[0]) * s->hash_size);
+ if (!s->hash_table)
+ goto fail;
+ init_list_head(&s->hash_table[0]);
+ s->record_count_threshold = 4;
+
+ arr = JS_UNDEFINED;
+ if (argc > 0)
+ arr = argv[0];
+ if (!JS_IsUndefined(arr) && !JS_IsNull(arr)) {
+ JSValue item, ret;
+ BOOL done;
+
+ adder = JS_GetProperty(ctx, obj, is_set ? JS_ATOM_add : JS_ATOM_set);
+ if (JS_IsException(adder))
+ goto fail;
+ if (!JS_IsFunction(ctx, adder)) {
+ JS_ThrowTypeError(ctx, "set/add is not a function");
+ goto fail;
+ }
+
+ iter = JS_GetIterator(ctx, arr, FALSE);
+ if (JS_IsException(iter))
+ goto fail;
+ next_method = JS_GetProperty(ctx, iter, JS_ATOM_next);
+ if (JS_IsException(next_method))
+ goto fail;
+
+ for(;;) {
+ item = JS_IteratorNext(ctx, iter, next_method, 0, NULL, &done);
+ if (JS_IsException(item))
+ goto fail;
+ if (done) {
+ JS_FreeValue(ctx, item);
+ break;
+ }
+ if (is_set) {
+ ret = JS_Call(ctx, adder, obj, 1, (JSValueConst *)&item);
+ if (JS_IsException(ret)) {
+ JS_FreeValue(ctx, item);
+ goto fail;
+ }
+ } else {
+ JSValue key, value;
+ JSValueConst args[2];
+ key = JS_UNDEFINED;
+ value = JS_UNDEFINED;
+ if (!JS_IsObject(item)) {
+ JS_ThrowTypeErrorNotAnObject(ctx);
+ goto fail1;
+ }
+ key = JS_GetPropertyUint32(ctx, item, 0);
+ if (JS_IsException(key))
+ goto fail1;
+ value = JS_GetPropertyUint32(ctx, item, 1);
+ if (JS_IsException(value))
+ goto fail1;
+ args[0] = key;
+ args[1] = value;
+ ret = JS_Call(ctx, adder, obj, 2, args);
+ if (JS_IsException(ret)) {
+ fail1:
+ JS_FreeValue(ctx, item);
+ JS_FreeValue(ctx, key);
+ JS_FreeValue(ctx, value);
+ goto fail;
+ }
+ JS_FreeValue(ctx, key);
+ JS_FreeValue(ctx, value);
+ }
+ JS_FreeValue(ctx, ret);
+ JS_FreeValue(ctx, item);
+ }
+ JS_FreeValue(ctx, next_method);
+ JS_FreeValue(ctx, iter);
+ JS_FreeValue(ctx, adder);
+ }
+ return obj;
+ fail:
+ if (JS_IsObject(iter)) {
+ /* close the iterator object, preserving pending exception */
+ JS_IteratorClose(ctx, iter, TRUE);
+ }
+ JS_FreeValue(ctx, next_method);
+ JS_FreeValue(ctx, iter);
+ JS_FreeValue(ctx, adder);
+ JS_FreeValue(ctx, obj);
+ return JS_EXCEPTION;
+}
+
+/* XXX: could normalize strings to speed up comparison */
+static JSValueConst map_normalize_key(JSContext *ctx, JSValueConst key)
+{
+ uint32_t tag = JS_VALUE_GET_TAG(key);
+ /* convert -0.0 to +0.0 */
+ if (JS_TAG_IS_FLOAT64(tag) && JS_VALUE_GET_FLOAT64(key) == 0.0) {
+ key = JS_NewInt32(ctx, 0);
+ }
+ return key;
+}
+
+/* XXX: better hash ? */
+static uint32_t map_hash_key(JSContext *ctx, JSValueConst key)
+{
+ uint32_t tag = JS_VALUE_GET_NORM_TAG(key);
+ uint32_t h;
+ double d;
+ JSFloat64Union u;
+
+ switch(tag) {
+ case JS_TAG_BOOL:
+ h = JS_VALUE_GET_INT(key);
+ break;
+ case JS_TAG_STRING:
+ h = hash_string(JS_VALUE_GET_STRING(key), 0);
+ break;
+ case JS_TAG_OBJECT:
+ case JS_TAG_SYMBOL:
+ h = (uintptr_t)JS_VALUE_GET_PTR(key) * 3163;
+ break;
+ case JS_TAG_INT:
+ d = JS_VALUE_GET_INT(key);
+ goto hash_float64;
+ case JS_TAG_FLOAT64:
+ d = JS_VALUE_GET_FLOAT64(key);
+ /* normalize the NaN */
+ if (isnan(d))
+ d = JS_FLOAT64_NAN;
+ hash_float64:
+ u.d = d;
+ h = (u.u32[0] ^ u.u32[1]) * 3163;
+ return h ^= JS_TAG_FLOAT64;
+ default:
+ h = 0; /* XXX: bignum support */
+ break;
+ }
+ h ^= tag;
+ return h;
+}
+
+static JSMapRecord *map_find_record(JSContext *ctx, JSMapState *s,
+ JSValueConst key)
+{
+ struct list_head *el;
+ JSMapRecord *mr;
+ uint32_t h;
+ h = map_hash_key(ctx, key) & (s->hash_size - 1);
+ list_for_each(el, &s->hash_table[h]) {
+ mr = list_entry(el, JSMapRecord, hash_link);
+ if (js_same_value_zero(ctx, mr->key, key))
+ return mr;
+ }
+ return NULL;
+}
+
+static void map_hash_resize(JSContext *ctx, JSMapState *s)
+{
+ uint32_t new_hash_size, i, h;
+ size_t slack;
+ struct list_head *new_hash_table, *el;
+ JSMapRecord *mr;
+
+ /* XXX: no reporting of memory allocation failure */
+ if (s->hash_size == 1)
+ new_hash_size = 4;
+ else
+ new_hash_size = s->hash_size * 2;
+ new_hash_table = js_realloc2(ctx, s->hash_table,
+ sizeof(new_hash_table[0]) * new_hash_size, &slack);
+ if (!new_hash_table)
+ return;
+ new_hash_size += slack / sizeof(*new_hash_table);
+
+ for(i = 0; i < new_hash_size; i++)
+ init_list_head(&new_hash_table[i]);
+
+ list_for_each(el, &s->records) {
+ mr = list_entry(el, JSMapRecord, link);
+ if (!mr->empty) {
+ h = map_hash_key(ctx, mr->key) & (new_hash_size - 1);
+ list_add_tail(&mr->hash_link, &new_hash_table[h]);
+ }
+ }
+ s->hash_table = new_hash_table;
+ s->hash_size = new_hash_size;
+ s->record_count_threshold = new_hash_size * 2;
+}
+
+static JSMapRecord *map_add_record(JSContext *ctx, JSMapState *s,
+ JSValueConst key)
+{
+ uint32_t h;
+ JSMapRecord *mr;
+
+ mr = js_malloc(ctx, sizeof(*mr));
+ if (!mr)
+ return NULL;
+ mr->ref_count = 1;
+ mr->map = s;
+ mr->empty = FALSE;
+ if (s->is_weak) {
+ JSObject *p = JS_VALUE_GET_OBJ(key);
+ /* Add the weak reference */
+ mr->next_weak_ref = p->first_weak_ref;
+ p->first_weak_ref = mr;
+ } else {
+ JS_DupValue(ctx, key);
+ }
+ mr->key = (JSValue)key;
+ h = map_hash_key(ctx, key) & (s->hash_size - 1);
+ list_add_tail(&mr->hash_link, &s->hash_table[h]);
+ list_add_tail(&mr->link, &s->records);
+ s->record_count++;
+ if (s->record_count >= s->record_count_threshold) {
+ map_hash_resize(ctx, s);
+ }
+ return mr;
+}
+
+/* Remove the weak reference from the object weak
+ reference list. we don't use a doubly linked list to
+ save space, assuming a given object has few weak
+ references to it */
+static void delete_weak_ref(JSRuntime *rt, JSMapRecord *mr)
+{
+ JSMapRecord **pmr, *mr1;
+ JSObject *p;
+
+ p = JS_VALUE_GET_OBJ(mr->key);
+ pmr = &p->first_weak_ref;
+ for(;;) {
+ mr1 = *pmr;
+ assert(mr1 != NULL);
+ if (mr1 == mr)
+ break;
+ pmr = &mr1->next_weak_ref;
+ }
+ *pmr = mr1->next_weak_ref;
+}
+
+static void map_delete_record(JSRuntime *rt, JSMapState *s, JSMapRecord *mr)
+{
+ if (mr->empty)
+ return;
+ list_del(&mr->hash_link);
+ if (s->is_weak) {
+ delete_weak_ref(rt, mr);
+ } else {
+ JS_FreeValueRT(rt, mr->key);
+ }
+ JS_FreeValueRT(rt, mr->value);
+ if (--mr->ref_count == 0) {
+ list_del(&mr->link);
+ js_free_rt(rt, mr);
+ } else {
+ /* keep a zombie record for iterators */
+ mr->empty = TRUE;
+ mr->key = JS_UNDEFINED;
+ mr->value = JS_UNDEFINED;
+ }
+ s->record_count--;
+}
+
+static void map_decref_record(JSRuntime *rt, JSMapRecord *mr)
+{
+ if (--mr->ref_count == 0) {
+ /* the record can be safely removed */
+ assert(mr->empty);
+ list_del(&mr->link);
+ js_free_rt(rt, mr);
+ }
+}
+
+static void reset_weak_ref(JSRuntime *rt, JSObject *p)
+{
+ JSMapRecord *mr, *mr_next;
+ JSMapState *s;
+
+ /* first pass to remove the records from the WeakMap/WeakSet
+ lists */
+ for(mr = p->first_weak_ref; mr != NULL; mr = mr->next_weak_ref) {
+ s = mr->map;
+ assert(s->is_weak);
+ assert(!mr->empty); /* no iterator on WeakMap/WeakSet */
+ list_del(&mr->hash_link);
+ list_del(&mr->link);
+ }
+
+ /* second pass to free the values to avoid modifying the weak
+ reference list while traversing it. */
+ for(mr = p->first_weak_ref; mr != NULL; mr = mr_next) {
+ mr_next = mr->next_weak_ref;
+ JS_FreeValueRT(rt, mr->value);
+ js_free_rt(rt, mr);
+ }
+
+ p->first_weak_ref = NULL; /* fail safe */
+}
+
+static JSValue js_map_set(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int magic)
+{
+ JSMapState *s = JS_GetOpaque2(ctx, this_val, JS_CLASS_MAP + magic);
+ JSMapRecord *mr;
+ JSValueConst key, value;
+
+ if (!s)
+ return JS_EXCEPTION;
+ key = map_normalize_key(ctx, argv[0]);
+ if (s->is_weak && !JS_IsObject(key))
+ return JS_ThrowTypeErrorNotAnObject(ctx);
+ if (magic & MAGIC_SET)
+ value = JS_UNDEFINED;
+ else
+ value = argv[1];
+ mr = map_find_record(ctx, s, key);
+ if (mr) {
+ JS_FreeValue(ctx, mr->value);
+ } else {
+ mr = map_add_record(ctx, s, key);
+ if (!mr)
+ return JS_EXCEPTION;
+ }
+ mr->value = JS_DupValue(ctx, value);
+ return JS_DupValue(ctx, this_val);
+}
+
+static JSValue js_map_get(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int magic)
+{
+ JSMapState *s = JS_GetOpaque2(ctx, this_val, JS_CLASS_MAP + magic);
+ JSMapRecord *mr;
+ JSValueConst key;
+
+ if (!s)
+ return JS_EXCEPTION;
+ key = map_normalize_key(ctx, argv[0]);
+ mr = map_find_record(ctx, s, key);
+ if (!mr)
+ return JS_UNDEFINED;
+ else
+ return JS_DupValue(ctx, mr->value);
+}
+
+static JSValue js_map_has(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int magic)
+{
+ JSMapState *s = JS_GetOpaque2(ctx, this_val, JS_CLASS_MAP + magic);
+ JSMapRecord *mr;
+ JSValueConst key;
+
+ if (!s)
+ return JS_EXCEPTION;
+ key = map_normalize_key(ctx, argv[0]);
+ mr = map_find_record(ctx, s, key);
+ return JS_NewBool(ctx, mr != NULL);
+}
+
+static JSValue js_map_delete(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int magic)
+{
+ JSMapState *s = JS_GetOpaque2(ctx, this_val, JS_CLASS_MAP + magic);
+ JSMapRecord *mr;
+ JSValueConst key;
+
+ if (!s)
+ return JS_EXCEPTION;
+ key = map_normalize_key(ctx, argv[0]);
+ mr = map_find_record(ctx, s, key);
+ if (!mr)
+ return JS_FALSE;
+ map_delete_record(ctx->rt, s, mr);
+ return JS_TRUE;
+}
+
+static JSValue js_map_clear(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int magic)
+{
+ JSMapState *s = JS_GetOpaque2(ctx, this_val, JS_CLASS_MAP + magic);
+ struct list_head *el, *el1;
+ JSMapRecord *mr;
+
+ if (!s)
+ return JS_EXCEPTION;
+ list_for_each_safe(el, el1, &s->records) {
+ mr = list_entry(el, JSMapRecord, link);
+ map_delete_record(ctx->rt, s, mr);
+ }
+ return JS_UNDEFINED;
+}
+
+static JSValue js_map_get_size(JSContext *ctx, JSValueConst this_val, int magic)
+{
+ JSMapState *s = JS_GetOpaque2(ctx, this_val, JS_CLASS_MAP + magic);
+ if (!s)
+ return JS_EXCEPTION;
+ return JS_NewUint32(ctx, s->record_count);
+}
+
+static JSValue js_map_forEach(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int magic)
+{
+ JSMapState *s = JS_GetOpaque2(ctx, this_val, JS_CLASS_MAP + magic);
+ JSValueConst func, this_arg;
+ JSValue ret, args[3];
+ struct list_head *el;
+ JSMapRecord *mr;
+
+ if (!s)
+ return JS_EXCEPTION;
+ func = argv[0];
+ if (argc > 1)
+ this_arg = argv[1];
+ else
+ this_arg = JS_UNDEFINED;
+ if (check_function(ctx, func))
+ return JS_EXCEPTION;
+ /* Note: the list can be modified while traversing it, but the
+ current element is locked */
+ el = s->records.next;
+ while (el != &s->records) {
+ mr = list_entry(el, JSMapRecord, link);
+ if (!mr->empty) {
+ mr->ref_count++;
+ /* must duplicate in case the record is deleted */
+ args[1] = JS_DupValue(ctx, mr->key);
+ if (magic)
+ args[0] = args[1];
+ else
+ args[0] = JS_DupValue(ctx, mr->value);
+ args[2] = (JSValue)this_val;
+ ret = JS_Call(ctx, func, this_arg, 3, (JSValueConst *)args);
+ JS_FreeValue(ctx, args[0]);
+ if (!magic)
+ JS_FreeValue(ctx, args[1]);
+ el = el->next;
+ map_decref_record(ctx->rt, mr);
+ if (JS_IsException(ret))
+ return ret;
+ JS_FreeValue(ctx, ret);
+ } else {
+ el = el->next;
+ }
+ }
+ return JS_UNDEFINED;
+}
+
+static JSValue js_object_groupBy(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int is_map)
+{
+ JSValueConst cb, args[2];
+ JSValue res, iter, next, groups, key, v, prop;
+ JSAtom key_atom = JS_ATOM_NULL;
+ int64_t idx;
+ BOOL done;
+
+ // "is function?" check must be observed before argv[0] is accessed
+ cb = argv[1];
+ if (check_function(ctx, cb))
+ return JS_EXCEPTION;
+
+ iter = JS_GetIterator(ctx, argv[0], /*is_async*/FALSE);
+ if (JS_IsException(iter))
+ return JS_EXCEPTION;
+
+ key = JS_UNDEFINED;
+ key_atom = JS_ATOM_NULL;
+ v = JS_UNDEFINED;
+ prop = JS_UNDEFINED;
+ groups = JS_UNDEFINED;
+
+ next = JS_GetProperty(ctx, iter, JS_ATOM_next);
+ if (JS_IsException(next))
+ goto exception;
+
+ if (is_map) {
+ groups = js_map_constructor(ctx, JS_UNDEFINED, 0, NULL, 0);
+ } else {
+ groups = JS_NewObjectProto(ctx, JS_NULL);
+ }
+ if (JS_IsException(groups))
+ goto exception;
+
+ for (idx = 0; ; idx++) {
+ if (idx >= MAX_SAFE_INTEGER) {
+ JS_ThrowTypeError(ctx, "too many elements");
+ goto iterator_close_exception;
+ }
+ v = JS_IteratorNext(ctx, iter, next, 0, NULL, &done);
+ if (JS_IsException(v))
+ goto exception;
+ if (done)
+ break; // v is JS_UNDEFINED
+
+ args[0] = v;
+ args[1] = JS_NewInt64(ctx, idx);
+ key = JS_Call(ctx, cb, ctx->global_obj, 2, args);
+ if (JS_IsException(key))
+ goto iterator_close_exception;
+
+ if (is_map) {
+ prop = js_map_get(ctx, groups, 1, (JSValueConst *)&key, 0);
+ } else {
+ key_atom = JS_ValueToAtom(ctx, key);
+ JS_FreeValue(ctx, key);
+ key = JS_UNDEFINED;
+ if (key_atom == JS_ATOM_NULL)
+ goto iterator_close_exception;
+ prop = JS_GetProperty(ctx, groups, key_atom);
+ }
+ if (JS_IsException(prop))
+ goto exception;
+
+ if (JS_IsUndefined(prop)) {
+ prop = JS_NewArray(ctx);
+ if (JS_IsException(prop))
+ goto exception;
+ if (is_map) {
+ args[0] = key;
+ args[1] = prop;
+ res = js_map_set(ctx, groups, 2, args, 0);
+ if (JS_IsException(res))
+ goto exception;
+ JS_FreeValue(ctx, res);
+ } else {
+ prop = JS_DupValue(ctx, prop);
+ if (JS_DefinePropertyValue(ctx, groups, key_atom, prop,
+ JS_PROP_C_W_E) < 0) {
+ goto exception;
+ }
+ }
+ }
+ res = js_array_push(ctx, prop, 1, (JSValueConst *)&v, /*unshift*/0);
+ if (JS_IsException(res))
+ goto exception;
+ // res is an int64
+
+ JS_FreeValue(ctx, prop);
+ JS_FreeValue(ctx, key);
+ JS_FreeAtom(ctx, key_atom);
+ JS_FreeValue(ctx, v);
+ prop = JS_UNDEFINED;
+ key = JS_UNDEFINED;
+ key_atom = JS_ATOM_NULL;
+ v = JS_UNDEFINED;
+ }
+
+ JS_FreeValue(ctx, iter);
+ JS_FreeValue(ctx, next);
+ return groups;
+
+ iterator_close_exception:
+ JS_IteratorClose(ctx, iter, TRUE);
+ exception:
+ JS_FreeAtom(ctx, key_atom);
+ JS_FreeValue(ctx, prop);
+ JS_FreeValue(ctx, key);
+ JS_FreeValue(ctx, v);
+ JS_FreeValue(ctx, groups);
+ JS_FreeValue(ctx, iter);
+ JS_FreeValue(ctx, next);
+ return JS_EXCEPTION;
+}
+
+static void js_map_finalizer(JSRuntime *rt, JSValue val)
+{
+ JSObject *p;
+ JSMapState *s;
+ struct list_head *el, *el1;
+ JSMapRecord *mr;
+
+ p = JS_VALUE_GET_OBJ(val);
+ s = p->u.map_state;
+ if (s) {
+ /* if the object is deleted we are sure that no iterator is
+ using it */
+ list_for_each_safe(el, el1, &s->records) {
+ mr = list_entry(el, JSMapRecord, link);
+ if (!mr->empty) {
+ if (s->is_weak)
+ delete_weak_ref(rt, mr);
+ else
+ JS_FreeValueRT(rt, mr->key);
+ JS_FreeValueRT(rt, mr->value);
+ }
+ js_free_rt(rt, mr);
+ }
+ js_free_rt(rt, s->hash_table);
+ js_free_rt(rt, s);
+ }
+}
+
+static void js_map_mark(JSRuntime *rt, JSValueConst val, JS_MarkFunc *mark_func)
+{
+ JSObject *p = JS_VALUE_GET_OBJ(val);
+ JSMapState *s;
+ struct list_head *el;
+ JSMapRecord *mr;
+
+ s = p->u.map_state;
+ if (s) {
+ list_for_each(el, &s->records) {
+ mr = list_entry(el, JSMapRecord, link);
+ if (!s->is_weak)
+ JS_MarkValue(rt, mr->key, mark_func);
+ JS_MarkValue(rt, mr->value, mark_func);
+ }
+ }
+}
+
+/* Map Iterator */
+
+typedef struct JSMapIteratorData {
+ JSValue obj;
+ JSIteratorKindEnum kind;
+ JSMapRecord *cur_record;
+} JSMapIteratorData;
+
+static void js_map_iterator_finalizer(JSRuntime *rt, JSValue val)
+{
+ JSObject *p;
+ JSMapIteratorData *it;
+
+ p = JS_VALUE_GET_OBJ(val);
+ it = p->u.map_iterator_data;
+ if (it) {
+ /* During the GC sweep phase the Map finalizer may be
+ called before the Map iterator finalizer */
+ if (JS_IsLiveObject(rt, it->obj) && it->cur_record) {
+ map_decref_record(rt, it->cur_record);
+ }
+ JS_FreeValueRT(rt, it->obj);
+ js_free_rt(rt, it);
+ }
+}
+
+static void js_map_iterator_mark(JSRuntime *rt, JSValueConst val,
+ JS_MarkFunc *mark_func)
+{
+ JSObject *p = JS_VALUE_GET_OBJ(val);
+ JSMapIteratorData *it;
+ it = p->u.map_iterator_data;
+ if (it) {
+ /* the record is already marked by the object */
+ JS_MarkValue(rt, it->obj, mark_func);
+ }
+}
+
+static JSValue js_create_map_iterator(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int magic)
+{
+ JSIteratorKindEnum kind;
+ JSMapState *s;
+ JSMapIteratorData *it;
+ JSValue enum_obj;
+
+ kind = magic >> 2;
+ magic &= 3;
+ s = JS_GetOpaque2(ctx, this_val, JS_CLASS_MAP + magic);
+ if (!s)
+ return JS_EXCEPTION;
+ enum_obj = JS_NewObjectClass(ctx, JS_CLASS_MAP_ITERATOR + magic);
+ if (JS_IsException(enum_obj))
+ goto fail;
+ it = js_malloc(ctx, sizeof(*it));
+ if (!it) {
+ JS_FreeValue(ctx, enum_obj);
+ goto fail;
+ }
+ it->obj = JS_DupValue(ctx, this_val);
+ it->kind = kind;
+ it->cur_record = NULL;
+ JS_SetOpaque(enum_obj, it);
+ return enum_obj;
+ fail:
+ return JS_EXCEPTION;
+}
+
+static JSValue js_map_iterator_next(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv,
+ BOOL *pdone, int magic)
+{
+ JSMapIteratorData *it;
+ JSMapState *s;
+ JSMapRecord *mr;
+ struct list_head *el;
+
+ it = JS_GetOpaque2(ctx, this_val, JS_CLASS_MAP_ITERATOR + magic);
+ if (!it) {
+ *pdone = FALSE;
+ return JS_EXCEPTION;
+ }
+ if (JS_IsUndefined(it->obj))
+ goto done;
+ s = JS_GetOpaque(it->obj, JS_CLASS_MAP + magic);
+ assert(s != NULL);
+ if (!it->cur_record) {
+ el = s->records.next;
+ } else {
+ mr = it->cur_record;
+ el = mr->link.next;
+ map_decref_record(ctx->rt, mr); /* the record can be freed here */
+ }
+ for(;;) {
+ if (el == &s->records) {
+ /* no more record */
+ it->cur_record = NULL;
+ JS_FreeValue(ctx, it->obj);
+ it->obj = JS_UNDEFINED;
+ done:
+ /* end of enumeration */
+ *pdone = TRUE;
+ return JS_UNDEFINED;
+ }
+ mr = list_entry(el, JSMapRecord, link);
+ if (!mr->empty)
+ break;
+ /* get the next record */
+ el = mr->link.next;
+ }
+
+ /* lock the record so that it won't be freed */
+ mr->ref_count++;
+ it->cur_record = mr;
+ *pdone = FALSE;
+
+ if (it->kind == JS_ITERATOR_KIND_KEY) {
+ return JS_DupValue(ctx, mr->key);
+ } else {
+ JSValueConst args[2];
+ args[0] = mr->key;
+ if (magic)
+ args[1] = mr->key;
+ else
+ args[1] = mr->value;
+ if (it->kind == JS_ITERATOR_KIND_VALUE) {
+ return JS_DupValue(ctx, args[1]);
+ } else {
+ return js_create_array(ctx, 2, args);
+ }
+ }
+}
+
+static const JSCFunctionListEntry js_map_funcs[] = {
+ JS_CFUNC_MAGIC_DEF("groupBy", 2, js_object_groupBy, 1 ),
+ JS_CGETSET_DEF("[Symbol.species]", js_get_this, NULL ),
+};
+
+static const JSCFunctionListEntry js_map_proto_funcs[] = {
+ JS_CFUNC_MAGIC_DEF("set", 2, js_map_set, 0 ),
+ JS_CFUNC_MAGIC_DEF("get", 1, js_map_get, 0 ),
+ JS_CFUNC_MAGIC_DEF("has", 1, js_map_has, 0 ),
+ JS_CFUNC_MAGIC_DEF("delete", 1, js_map_delete, 0 ),
+ JS_CFUNC_MAGIC_DEF("clear", 0, js_map_clear, 0 ),
+ JS_CGETSET_MAGIC_DEF("size", js_map_get_size, NULL, 0),
+ JS_CFUNC_MAGIC_DEF("forEach", 1, js_map_forEach, 0 ),
+ JS_CFUNC_MAGIC_DEF("values", 0, js_create_map_iterator, (JS_ITERATOR_KIND_VALUE << 2) | 0 ),
+ JS_CFUNC_MAGIC_DEF("keys", 0, js_create_map_iterator, (JS_ITERATOR_KIND_KEY << 2) | 0 ),
+ JS_CFUNC_MAGIC_DEF("entries", 0, js_create_map_iterator, (JS_ITERATOR_KIND_KEY_AND_VALUE << 2) | 0 ),
+ JS_ALIAS_DEF("[Symbol.iterator]", "entries" ),
+ JS_PROP_STRING_DEF("[Symbol.toStringTag]", "Map", JS_PROP_CONFIGURABLE ),
+};
+
+static const JSCFunctionListEntry js_map_iterator_proto_funcs[] = {
+ JS_ITERATOR_NEXT_DEF("next", 0, js_map_iterator_next, 0 ),
+ JS_PROP_STRING_DEF("[Symbol.toStringTag]", "Map Iterator", JS_PROP_CONFIGURABLE ),
+};
+
+static const JSCFunctionListEntry js_set_proto_funcs[] = {
+ JS_CFUNC_MAGIC_DEF("add", 1, js_map_set, MAGIC_SET ),
+ JS_CFUNC_MAGIC_DEF("has", 1, js_map_has, MAGIC_SET ),
+ JS_CFUNC_MAGIC_DEF("delete", 1, js_map_delete, MAGIC_SET ),
+ JS_CFUNC_MAGIC_DEF("clear", 0, js_map_clear, MAGIC_SET ),
+ JS_CGETSET_MAGIC_DEF("size", js_map_get_size, NULL, MAGIC_SET ),
+ JS_CFUNC_MAGIC_DEF("forEach", 1, js_map_forEach, MAGIC_SET ),
+ JS_CFUNC_MAGIC_DEF("values", 0, js_create_map_iterator, (JS_ITERATOR_KIND_KEY << 2) | MAGIC_SET ),
+ JS_ALIAS_DEF("keys", "values" ),
+ JS_ALIAS_DEF("[Symbol.iterator]", "values" ),
+ JS_CFUNC_MAGIC_DEF("entries", 0, js_create_map_iterator, (JS_ITERATOR_KIND_KEY_AND_VALUE << 2) | MAGIC_SET ),
+ JS_PROP_STRING_DEF("[Symbol.toStringTag]", "Set", JS_PROP_CONFIGURABLE ),
+};
+
+static const JSCFunctionListEntry js_set_iterator_proto_funcs[] = {
+ JS_ITERATOR_NEXT_DEF("next", 0, js_map_iterator_next, MAGIC_SET ),
+ JS_PROP_STRING_DEF("[Symbol.toStringTag]", "Set Iterator", JS_PROP_CONFIGURABLE ),
+};
+
+static const JSCFunctionListEntry js_weak_map_proto_funcs[] = {
+ JS_CFUNC_MAGIC_DEF("set", 2, js_map_set, MAGIC_WEAK ),
+ JS_CFUNC_MAGIC_DEF("get", 1, js_map_get, MAGIC_WEAK ),
+ JS_CFUNC_MAGIC_DEF("has", 1, js_map_has, MAGIC_WEAK ),
+ JS_CFUNC_MAGIC_DEF("delete", 1, js_map_delete, MAGIC_WEAK ),
+ JS_PROP_STRING_DEF("[Symbol.toStringTag]", "WeakMap", JS_PROP_CONFIGURABLE ),
+};
+
+static const JSCFunctionListEntry js_weak_set_proto_funcs[] = {
+ JS_CFUNC_MAGIC_DEF("add", 1, js_map_set, MAGIC_SET | MAGIC_WEAK ),
+ JS_CFUNC_MAGIC_DEF("has", 1, js_map_has, MAGIC_SET | MAGIC_WEAK ),
+ JS_CFUNC_MAGIC_DEF("delete", 1, js_map_delete, MAGIC_SET | MAGIC_WEAK ),
+ JS_PROP_STRING_DEF("[Symbol.toStringTag]", "WeakSet", JS_PROP_CONFIGURABLE ),
+};
+
+static const JSCFunctionListEntry * const js_map_proto_funcs_ptr[6] = {
+ js_map_proto_funcs,
+ js_set_proto_funcs,
+ js_weak_map_proto_funcs,
+ js_weak_set_proto_funcs,
+ js_map_iterator_proto_funcs,
+ js_set_iterator_proto_funcs,
+};
+
+static const uint8_t js_map_proto_funcs_count[6] = {
+ countof(js_map_proto_funcs),
+ countof(js_set_proto_funcs),
+ countof(js_weak_map_proto_funcs),
+ countof(js_weak_set_proto_funcs),
+ countof(js_map_iterator_proto_funcs),
+ countof(js_set_iterator_proto_funcs),
+};
+
+void JS_AddIntrinsicMapSet(JSContext *ctx)
+{
+ int i;
+ JSValue obj1;
+ char buf[ATOM_GET_STR_BUF_SIZE];
+
+ for(i = 0; i < 4; i++) {
+ const char *name = JS_AtomGetStr(ctx, buf, sizeof(buf),
+ JS_ATOM_Map + i);
+ ctx->class_proto[JS_CLASS_MAP + i] = JS_NewObject(ctx);
+ JS_SetPropertyFunctionList(ctx, ctx->class_proto[JS_CLASS_MAP + i],
+ js_map_proto_funcs_ptr[i],
+ js_map_proto_funcs_count[i]);
+ obj1 = JS_NewCFunctionMagic(ctx, js_map_constructor, name, 0,
+ JS_CFUNC_constructor_magic, i);
+ if (i < 2) {
+ JS_SetPropertyFunctionList(ctx, obj1, js_map_funcs,
+ countof(js_map_funcs));
+ }
+ JS_NewGlobalCConstructor2(ctx, obj1, name, ctx->class_proto[JS_CLASS_MAP + i]);
+ }
+
+ for(i = 0; i < 2; i++) {
+ ctx->class_proto[JS_CLASS_MAP_ITERATOR + i] =
+ JS_NewObjectProto(ctx, ctx->iterator_proto);
+ JS_SetPropertyFunctionList(ctx, ctx->class_proto[JS_CLASS_MAP_ITERATOR + i],
+ js_map_proto_funcs_ptr[i + 4],
+ js_map_proto_funcs_count[i + 4]);
+ }
+}
+
+/* Generator */
+static const JSCFunctionListEntry js_generator_function_proto_funcs[] = {
+ JS_PROP_STRING_DEF("[Symbol.toStringTag]", "GeneratorFunction", JS_PROP_CONFIGURABLE),
+};
+
+static const JSCFunctionListEntry js_generator_proto_funcs[] = {
+ JS_ITERATOR_NEXT_DEF("next", 1, js_generator_next, GEN_MAGIC_NEXT ),
+ JS_ITERATOR_NEXT_DEF("return", 1, js_generator_next, GEN_MAGIC_RETURN ),
+ JS_ITERATOR_NEXT_DEF("throw", 1, js_generator_next, GEN_MAGIC_THROW ),
+ JS_PROP_STRING_DEF("[Symbol.toStringTag]", "Generator", JS_PROP_CONFIGURABLE),
+};
+
+/* Promise */
+
+typedef struct JSPromiseData {
+ JSPromiseStateEnum promise_state;
+ /* 0=fulfill, 1=reject, list of JSPromiseReactionData.link */
+ struct list_head promise_reactions[2];
+ BOOL is_handled; /* Note: only useful to debug */
+ JSValue promise_result;
+} JSPromiseData;
+
+typedef struct JSPromiseFunctionDataResolved {
+ int ref_count;
+ BOOL already_resolved;
+} JSPromiseFunctionDataResolved;
+
+typedef struct JSPromiseFunctionData {
+ JSValue promise;
+ JSPromiseFunctionDataResolved *presolved;
+} JSPromiseFunctionData;
+
+typedef struct JSPromiseReactionData {
+ struct list_head link; /* not used in promise_reaction_job */
+ JSValue resolving_funcs[2];
+ JSValue handler;
+} JSPromiseReactionData;
+
+JSPromiseStateEnum JS_PromiseState(JSContext *ctx, JSValue promise)
+{
+ JSPromiseData *s = JS_GetOpaque(promise, JS_CLASS_PROMISE);
+ if (!s)
+ return -1;
+ return s->promise_state;
+}
+
+JSValue JS_PromiseResult(JSContext *ctx, JSValue promise)
+{
+ JSPromiseData *s = JS_GetOpaque(promise, JS_CLASS_PROMISE);
+ if (!s)
+ return JS_UNDEFINED;
+ return JS_DupValue(ctx, s->promise_result);
+}
+
+static int js_create_resolving_functions(JSContext *ctx, JSValue *args,
+ JSValueConst promise);
+
+static void promise_reaction_data_free(JSRuntime *rt,
+ JSPromiseReactionData *rd)
+{
+ JS_FreeValueRT(rt, rd->resolving_funcs[0]);
+ JS_FreeValueRT(rt, rd->resolving_funcs[1]);
+ JS_FreeValueRT(rt, rd->handler);
+ js_free_rt(rt, rd);
+}
+
+static JSValue promise_reaction_job(JSContext *ctx, int argc,
+ JSValueConst *argv)
+{
+ JSValueConst handler, arg, func;
+ JSValue res, res2;
+ BOOL is_reject;
+
+ assert(argc == 5);
+ handler = argv[2];
+ is_reject = JS_ToBool(ctx, argv[3]);
+ arg = argv[4];
+#ifdef DUMP_PROMISE
+ printf("promise_reaction_job: is_reject=%d\n", is_reject);
+#endif
+
+ if (JS_IsUndefined(handler)) {
+ if (is_reject) {
+ res = JS_Throw(ctx, JS_DupValue(ctx, arg));
+ } else {
+ res = JS_DupValue(ctx, arg);
+ }
+ } else {
+ res = JS_Call(ctx, handler, JS_UNDEFINED, 1, &arg);
+ }
+ is_reject = JS_IsException(res);
+ if (is_reject)
+ res = JS_GetException(ctx);
+ func = argv[is_reject];
+ /* as an extension, we support undefined as value to avoid
+ creating a dummy promise in the 'await' implementation of async
+ functions */
+ if (!JS_IsUndefined(func)) {
+ res2 = JS_Call(ctx, func, JS_UNDEFINED,
+ 1, (JSValueConst *)&res);
+ } else {
+ res2 = JS_UNDEFINED;
+ }
+ JS_FreeValue(ctx, res);
+
+ return res2;
+}
+
+void JS_SetHostPromiseRejectionTracker(JSRuntime *rt,
+ JSHostPromiseRejectionTracker *cb,
+ void *opaque)
+{
+ rt->host_promise_rejection_tracker = cb;
+ rt->host_promise_rejection_tracker_opaque = opaque;
+}
+
+static void fulfill_or_reject_promise(JSContext *ctx, JSValueConst promise,
+ JSValueConst value, BOOL is_reject)
+{
+ JSPromiseData *s = JS_GetOpaque(promise, JS_CLASS_PROMISE);
+ struct list_head *el, *el1;
+ JSPromiseReactionData *rd;
+ JSValueConst args[5];
+
+ if (!s || s->promise_state != JS_PROMISE_PENDING)
+ return; /* should never happen */
+ set_value(ctx, &s->promise_result, JS_DupValue(ctx, value));
+ s->promise_state = JS_PROMISE_FULFILLED + is_reject;
+#ifdef DUMP_PROMISE
+ printf("fulfill_or_reject_promise: is_reject=%d\n", is_reject);
+#endif
+ if (s->promise_state == JS_PROMISE_REJECTED && !s->is_handled) {
+ JSRuntime *rt = ctx->rt;
+ if (rt->host_promise_rejection_tracker) {
+ rt->host_promise_rejection_tracker(ctx, promise, value, FALSE,
+ rt->host_promise_rejection_tracker_opaque);
+ }
+ }
+
+ list_for_each_safe(el, el1, &s->promise_reactions[is_reject]) {
+ rd = list_entry(el, JSPromiseReactionData, link);
+ args[0] = rd->resolving_funcs[0];
+ args[1] = rd->resolving_funcs[1];
+ args[2] = rd->handler;
+ args[3] = JS_NewBool(ctx, is_reject);
+ args[4] = value;
+ JS_EnqueueJob(ctx, promise_reaction_job, 5, args);
+ list_del(&rd->link);
+ promise_reaction_data_free(ctx->rt, rd);
+ }
+
+ list_for_each_safe(el, el1, &s->promise_reactions[1 - is_reject]) {
+ rd = list_entry(el, JSPromiseReactionData, link);
+ list_del(&rd->link);
+ promise_reaction_data_free(ctx->rt, rd);
+ }
+}
+
+static void reject_promise(JSContext *ctx, JSValueConst promise,
+ JSValueConst value)
+{
+ fulfill_or_reject_promise(ctx, promise, value, TRUE);
+}
+
+static JSValue js_promise_resolve_thenable_job(JSContext *ctx,
+ int argc, JSValueConst *argv)
+{
+ JSValueConst promise, thenable, then;
+ JSValue args[2], res;
+
+#ifdef DUMP_PROMISE
+ printf("js_promise_resolve_thenable_job\n");
+#endif
+ assert(argc == 3);
+ promise = argv[0];
+ thenable = argv[1];
+ then = argv[2];
+ if (js_create_resolving_functions(ctx, args, promise) < 0)
+ return JS_EXCEPTION;
+ res = JS_Call(ctx, then, thenable, 2, (JSValueConst *)args);
+ if (JS_IsException(res)) {
+ JSValue error = JS_GetException(ctx);
+ res = JS_Call(ctx, args[1], JS_UNDEFINED, 1, (JSValueConst *)&error);
+ JS_FreeValue(ctx, error);
+ }
+ JS_FreeValue(ctx, args[0]);
+ JS_FreeValue(ctx, args[1]);
+ return res;
+}
+
+static void js_promise_resolve_function_free_resolved(JSRuntime *rt,
+ JSPromiseFunctionDataResolved *sr)
+{
+ if (--sr->ref_count == 0) {
+ js_free_rt(rt, sr);
+ }
+}
+
+static int js_create_resolving_functions(JSContext *ctx,
+ JSValue *resolving_funcs,
+ JSValueConst promise)
+
+{
+ JSValue obj;
+ JSPromiseFunctionData *s;
+ JSPromiseFunctionDataResolved *sr;
+ int i, ret;
+
+ sr = js_malloc(ctx, sizeof(*sr));
+ if (!sr)
+ return -1;
+ sr->ref_count = 1;
+ sr->already_resolved = FALSE; /* must be shared between the two functions */
+ ret = 0;
+ for(i = 0; i < 2; i++) {
+ obj = JS_NewObjectProtoClass(ctx, ctx->function_proto,
+ JS_CLASS_PROMISE_RESOLVE_FUNCTION + i);
+ if (JS_IsException(obj))
+ goto fail;
+ s = js_malloc(ctx, sizeof(*s));
+ if (!s) {
+ JS_FreeValue(ctx, obj);
+ fail:
+
+ if (i != 0)
+ JS_FreeValue(ctx, resolving_funcs[0]);
+ ret = -1;
+ break;
+ }
+ sr->ref_count++;
+ s->presolved = sr;
+ s->promise = JS_DupValue(ctx, promise);
+ JS_SetOpaque(obj, s);
+ js_function_set_properties(ctx, obj, JS_ATOM_empty_string, 1);
+ resolving_funcs[i] = obj;
+ }
+ js_promise_resolve_function_free_resolved(ctx->rt, sr);
+ return ret;
+}
+
+static void js_promise_resolve_function_finalizer(JSRuntime *rt, JSValue val)
+{
+ JSPromiseFunctionData *s = JS_VALUE_GET_OBJ(val)->u.promise_function_data;
+ if (s) {
+ js_promise_resolve_function_free_resolved(rt, s->presolved);
+ JS_FreeValueRT(rt, s->promise);
+ js_free_rt(rt, s);
+ }
+}
+
+static void js_promise_resolve_function_mark(JSRuntime *rt, JSValueConst val,
+ JS_MarkFunc *mark_func)
+{
+ JSPromiseFunctionData *s = JS_VALUE_GET_OBJ(val)->u.promise_function_data;
+ if (s) {
+ JS_MarkValue(rt, s->promise, mark_func);
+ }
+}
+
+static JSValue js_promise_resolve_function_call(JSContext *ctx,
+ JSValueConst func_obj,
+ JSValueConst this_val,
+ int argc, JSValueConst *argv,
+ int flags)
+{
+ JSObject *p = JS_VALUE_GET_OBJ(func_obj);
+ JSPromiseFunctionData *s;
+ JSValueConst resolution, args[3];
+ JSValue then;
+ BOOL is_reject;
+
+ s = p->u.promise_function_data;
+ if (!s || s->presolved->already_resolved)
+ return JS_UNDEFINED;
+ s->presolved->already_resolved = TRUE;
+ is_reject = p->class_id - JS_CLASS_PROMISE_RESOLVE_FUNCTION;
+ if (argc > 0)
+ resolution = argv[0];
+ else
+ resolution = JS_UNDEFINED;
+#ifdef DUMP_PROMISE
+ printf("js_promise_resolving_function_call: is_reject=%d resolution=", is_reject);
+ JS_DumpValue(ctx, resolution);
+ printf("\n");
+#endif
+ if (is_reject || !JS_IsObject(resolution)) {
+ goto done;
+ } else if (js_same_value(ctx, resolution, s->promise)) {
+ JS_ThrowTypeError(ctx, "promise self resolution");
+ goto fail_reject;
+ }
+ then = JS_GetProperty(ctx, resolution, JS_ATOM_then);
+ if (JS_IsException(then)) {
+ JSValue error;
+ fail_reject:
+ error = JS_GetException(ctx);
+ reject_promise(ctx, s->promise, error);
+ JS_FreeValue(ctx, error);
+ } else if (!JS_IsFunction(ctx, then)) {
+ JS_FreeValue(ctx, then);
+ done:
+ fulfill_or_reject_promise(ctx, s->promise, resolution, is_reject);
+ } else {
+ args[0] = s->promise;
+ args[1] = resolution;
+ args[2] = then;
+ JS_EnqueueJob(ctx, js_promise_resolve_thenable_job, 3, args);
+ JS_FreeValue(ctx, then);
+ }
+ return JS_UNDEFINED;
+}
+
+static void js_promise_finalizer(JSRuntime *rt, JSValue val)
+{
+ JSPromiseData *s = JS_GetOpaque(val, JS_CLASS_PROMISE);
+ struct list_head *el, *el1;
+ int i;
+
+ if (!s)
+ return;
+ for(i = 0; i < 2; i++) {
+ list_for_each_safe(el, el1, &s->promise_reactions[i]) {
+ JSPromiseReactionData *rd =
+ list_entry(el, JSPromiseReactionData, link);
+ promise_reaction_data_free(rt, rd);
+ }
+ }
+ JS_FreeValueRT(rt, s->promise_result);
+ js_free_rt(rt, s);
+}
+
+static void js_promise_mark(JSRuntime *rt, JSValueConst val,
+ JS_MarkFunc *mark_func)
+{
+ JSPromiseData *s = JS_GetOpaque(val, JS_CLASS_PROMISE);
+ struct list_head *el;
+ int i;
+
+ if (!s)
+ return;
+ for(i = 0; i < 2; i++) {
+ list_for_each(el, &s->promise_reactions[i]) {
+ JSPromiseReactionData *rd =
+ list_entry(el, JSPromiseReactionData, link);
+ JS_MarkValue(rt, rd->resolving_funcs[0], mark_func);
+ JS_MarkValue(rt, rd->resolving_funcs[1], mark_func);
+ JS_MarkValue(rt, rd->handler, mark_func);
+ }
+ }
+ JS_MarkValue(rt, s->promise_result, mark_func);
+}
+
+static JSValue js_promise_constructor(JSContext *ctx, JSValueConst new_target,
+ int argc, JSValueConst *argv)
+{
+ JSValueConst executor;
+ JSValue obj;
+ JSPromiseData *s;
+ JSValue args[2], ret;
+ int i;
+
+ executor = argv[0];
+ if (check_function(ctx, executor))
+ return JS_EXCEPTION;
+ obj = js_create_from_ctor(ctx, new_target, JS_CLASS_PROMISE);
+ if (JS_IsException(obj))
+ return JS_EXCEPTION;
+ s = js_mallocz(ctx, sizeof(*s));
+ if (!s)
+ goto fail;
+ s->promise_state = JS_PROMISE_PENDING;
+ s->is_handled = FALSE;
+ for(i = 0; i < 2; i++)
+ init_list_head(&s->promise_reactions[i]);
+ s->promise_result = JS_UNDEFINED;
+ JS_SetOpaque(obj, s);
+ if (js_create_resolving_functions(ctx, args, obj))
+ goto fail;
+ ret = JS_Call(ctx, executor, JS_UNDEFINED, 2, (JSValueConst *)args);
+ if (JS_IsException(ret)) {
+ JSValue ret2, error;
+ error = JS_GetException(ctx);
+ ret2 = JS_Call(ctx, args[1], JS_UNDEFINED, 1, (JSValueConst *)&error);
+ JS_FreeValue(ctx, error);
+ if (JS_IsException(ret2))
+ goto fail1;
+ JS_FreeValue(ctx, ret2);
+ }
+ JS_FreeValue(ctx, ret);
+ JS_FreeValue(ctx, args[0]);
+ JS_FreeValue(ctx, args[1]);
+ return obj;
+ fail1:
+ JS_FreeValue(ctx, args[0]);
+ JS_FreeValue(ctx, args[1]);
+ fail:
+ JS_FreeValue(ctx, obj);
+ return JS_EXCEPTION;
+}
+
+static JSValue js_promise_executor(JSContext *ctx,
+ JSValueConst this_val,
+ int argc, JSValueConst *argv,
+ int magic, JSValue *func_data)
+{
+ int i;
+
+ for(i = 0; i < 2; i++) {
+ if (!JS_IsUndefined(func_data[i]))
+ return JS_ThrowTypeError(ctx, "resolving function already set");
+ func_data[i] = JS_DupValue(ctx, argv[i]);
+ }
+ return JS_UNDEFINED;
+}
+
+static JSValue js_promise_executor_new(JSContext *ctx)
+{
+ JSValueConst func_data[2];
+
+ func_data[0] = JS_UNDEFINED;
+ func_data[1] = JS_UNDEFINED;
+ return JS_NewCFunctionData(ctx, js_promise_executor, 2,
+ 0, 2, func_data);
+}
+
+static JSValue js_new_promise_capability(JSContext *ctx,
+ JSValue *resolving_funcs,
+ JSValueConst ctor)
+{
+ JSValue executor, result_promise;
+ JSCFunctionDataRecord *s;
+ int i;
+
+ executor = js_promise_executor_new(ctx);
+ if (JS_IsException(executor))
+ return executor;
+
+ if (JS_IsUndefined(ctor)) {
+ result_promise = js_promise_constructor(ctx, ctor, 1,
+ (JSValueConst *)&executor);
+ } else {
+ result_promise = JS_CallConstructor(ctx, ctor, 1,
+ (JSValueConst *)&executor);
+ }
+ if (JS_IsException(result_promise))
+ goto fail;
+ s = JS_GetOpaque(executor, JS_CLASS_C_FUNCTION_DATA);
+ for(i = 0; i < 2; i++) {
+ if (check_function(ctx, s->data[i]))
+ goto fail;
+ }
+ for(i = 0; i < 2; i++)
+ resolving_funcs[i] = JS_DupValue(ctx, s->data[i]);
+ JS_FreeValue(ctx, executor);
+ return result_promise;
+ fail:
+ JS_FreeValue(ctx, executor);
+ JS_FreeValue(ctx, result_promise);
+ return JS_EXCEPTION;
+}
+
+JSValue JS_NewPromiseCapability(JSContext *ctx, JSValue *resolving_funcs)
+{
+ return js_new_promise_capability(ctx, resolving_funcs, JS_UNDEFINED);
+}
+
+static JSValue js_promise_resolve(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int magic)
+{
+ JSValue result_promise, resolving_funcs[2], ret;
+ BOOL is_reject = magic;
+
+ if (!JS_IsObject(this_val))
+ return JS_ThrowTypeErrorNotAnObject(ctx);
+ if (!is_reject && JS_GetOpaque(argv[0], JS_CLASS_PROMISE)) {
+ JSValue ctor;
+ BOOL is_same;
+ ctor = JS_GetProperty(ctx, argv[0], JS_ATOM_constructor);
+ if (JS_IsException(ctor))
+ return ctor;
+ is_same = js_same_value(ctx, ctor, this_val);
+ JS_FreeValue(ctx, ctor);
+ if (is_same)
+ return JS_DupValue(ctx, argv[0]);
+ }
+ result_promise = js_new_promise_capability(ctx, resolving_funcs, this_val);
+ if (JS_IsException(result_promise))
+ return result_promise;
+ ret = JS_Call(ctx, resolving_funcs[is_reject], JS_UNDEFINED, 1, argv);
+ JS_FreeValue(ctx, resolving_funcs[0]);
+ JS_FreeValue(ctx, resolving_funcs[1]);
+ if (JS_IsException(ret)) {
+ JS_FreeValue(ctx, result_promise);
+ return ret;
+ }
+ JS_FreeValue(ctx, ret);
+ return result_promise;
+}
+
+static JSValue js_promise_withResolvers(JSContext *ctx,
+ JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValue result_promise, resolving_funcs[2], obj;
+ if (!JS_IsObject(this_val))
+ return JS_ThrowTypeErrorNotAnObject(ctx);
+ result_promise = js_new_promise_capability(ctx, resolving_funcs, this_val);
+ if (JS_IsException(result_promise))
+ return result_promise;
+ obj = JS_NewObject(ctx);
+ if (JS_IsException(obj)) {
+ JS_FreeValue(ctx, resolving_funcs[0]);
+ JS_FreeValue(ctx, resolving_funcs[1]);
+ JS_FreeValue(ctx, result_promise);
+ return JS_EXCEPTION;
+ }
+ JS_DefinePropertyValue(ctx, obj, JS_ATOM_promise, result_promise, JS_PROP_C_W_E);
+ JS_DefinePropertyValue(ctx, obj, JS_ATOM_resolve, resolving_funcs[0], JS_PROP_C_W_E);
+ JS_DefinePropertyValue(ctx, obj, JS_ATOM_reject, resolving_funcs[1], JS_PROP_C_W_E);
+ return obj;
+}
+
+static __exception int remainingElementsCount_add(JSContext *ctx,
+ JSValueConst resolve_element_env,
+ int addend)
+{
+ JSValue val;
+ int remainingElementsCount;
+
+ val = JS_GetPropertyUint32(ctx, resolve_element_env, 0);
+ if (JS_IsException(val))
+ return -1;
+ if (JS_ToInt32Free(ctx, &remainingElementsCount, val))
+ return -1;
+ remainingElementsCount += addend;
+ if (JS_SetPropertyUint32(ctx, resolve_element_env, 0,
+ JS_NewInt32(ctx, remainingElementsCount)) < 0)
+ return -1;
+ return (remainingElementsCount == 0);
+}
+
+#define PROMISE_MAGIC_all 0
+#define PROMISE_MAGIC_allSettled 1
+#define PROMISE_MAGIC_any 2
+
+static JSValue js_promise_all_resolve_element(JSContext *ctx,
+ JSValueConst this_val,
+ int argc, JSValueConst *argv,
+ int magic,
+ JSValue *func_data)
+{
+ int resolve_type = magic & 3;
+ int is_reject = magic & 4;
+ BOOL alreadyCalled = JS_ToBool(ctx, func_data[0]);
+ JSValueConst values = func_data[2];
+ JSValueConst resolve = func_data[3];
+ JSValueConst resolve_element_env = func_data[4];
+ JSValue ret, obj;
+ int is_zero, index;
+
+ if (JS_ToInt32(ctx, &index, func_data[1]))
+ return JS_EXCEPTION;
+ if (alreadyCalled)
+ return JS_UNDEFINED;
+ func_data[0] = JS_NewBool(ctx, TRUE);
+
+ if (resolve_type == PROMISE_MAGIC_allSettled) {
+ JSValue str;
+
+ obj = JS_NewObject(ctx);
+ if (JS_IsException(obj))
+ return JS_EXCEPTION;
+ str = JS_NewString(ctx, is_reject ? "rejected" : "fulfilled");
+ if (JS_IsException(str))
+ goto fail1;
+ if (JS_DefinePropertyValue(ctx, obj, JS_ATOM_status,
+ str,
+ JS_PROP_C_W_E) < 0)
+ goto fail1;
+ if (JS_DefinePropertyValue(ctx, obj,
+ is_reject ? JS_ATOM_reason : JS_ATOM_value,
+ JS_DupValue(ctx, argv[0]),
+ JS_PROP_C_W_E) < 0) {
+ fail1:
+ JS_FreeValue(ctx, obj);
+ return JS_EXCEPTION;
+ }
+ } else {
+ obj = JS_DupValue(ctx, argv[0]);
+ }
+ if (JS_DefinePropertyValueUint32(ctx, values, index,
+ obj, JS_PROP_C_W_E) < 0)
+ return JS_EXCEPTION;
+
+ is_zero = remainingElementsCount_add(ctx, resolve_element_env, -1);
+ if (is_zero < 0)
+ return JS_EXCEPTION;
+ if (is_zero) {
+ if (resolve_type == PROMISE_MAGIC_any) {
+ JSValue error;
+ error = js_aggregate_error_constructor(ctx, values);
+ if (JS_IsException(error))
+ return JS_EXCEPTION;
+ ret = JS_Call(ctx, resolve, JS_UNDEFINED, 1, (JSValueConst *)&error);
+ JS_FreeValue(ctx, error);
+ } else {
+ ret = JS_Call(ctx, resolve, JS_UNDEFINED, 1, (JSValueConst *)&values);
+ }
+ if (JS_IsException(ret))
+ return ret;
+ JS_FreeValue(ctx, ret);
+ }
+ return JS_UNDEFINED;
+}
+
+/* magic = 0: Promise.all 1: Promise.allSettled */
+static JSValue js_promise_all(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int magic)
+{
+ JSValue result_promise, resolving_funcs[2], item, next_promise, ret;
+ JSValue next_method = JS_UNDEFINED, values = JS_UNDEFINED;
+ JSValue resolve_element_env = JS_UNDEFINED, resolve_element, reject_element;
+ JSValue promise_resolve = JS_UNDEFINED, iter = JS_UNDEFINED;
+ JSValueConst then_args[2], resolve_element_data[5];
+ BOOL done;
+ int index, is_zero, is_promise_any = (magic == PROMISE_MAGIC_any);
+
+ if (!JS_IsObject(this_val))
+ return JS_ThrowTypeErrorNotAnObject(ctx);
+ result_promise = js_new_promise_capability(ctx, resolving_funcs, this_val);
+ if (JS_IsException(result_promise))
+ return result_promise;
+ promise_resolve = JS_GetProperty(ctx, this_val, JS_ATOM_resolve);
+ if (JS_IsException(promise_resolve) ||
+ check_function(ctx, promise_resolve))
+ goto fail_reject;
+ iter = JS_GetIterator(ctx, argv[0], FALSE);
+ if (JS_IsException(iter)) {
+ JSValue error;
+ fail_reject:
+ error = JS_GetException(ctx);
+ ret = JS_Call(ctx, resolving_funcs[1], JS_UNDEFINED, 1,
+ (JSValueConst *)&error);
+ JS_FreeValue(ctx, error);
+ if (JS_IsException(ret))
+ goto fail;
+ JS_FreeValue(ctx, ret);
+ } else {
+ next_method = JS_GetProperty(ctx, iter, JS_ATOM_next);
+ if (JS_IsException(next_method))
+ goto fail_reject;
+ values = JS_NewArray(ctx);
+ if (JS_IsException(values))
+ goto fail_reject;
+ resolve_element_env = JS_NewArray(ctx);
+ if (JS_IsException(resolve_element_env))
+ goto fail_reject;
+ /* remainingElementsCount field */
+ if (JS_DefinePropertyValueUint32(ctx, resolve_element_env, 0,
+ JS_NewInt32(ctx, 1),
+ JS_PROP_CONFIGURABLE | JS_PROP_ENUMERABLE | JS_PROP_WRITABLE) < 0)
+ goto fail_reject;
+
+ index = 0;
+ for(;;) {
+ /* XXX: conformance: should close the iterator if error on 'done'
+ access, but not on 'value' access */
+ item = JS_IteratorNext(ctx, iter, next_method, 0, NULL, &done);
+ if (JS_IsException(item))
+ goto fail_reject;
+ if (done)
+ break;
+ next_promise = JS_Call(ctx, promise_resolve,
+ this_val, 1, (JSValueConst *)&item);
+ JS_FreeValue(ctx, item);
+ if (JS_IsException(next_promise)) {
+ fail_reject1:
+ JS_IteratorClose(ctx, iter, TRUE);
+ goto fail_reject;
+ }
+ resolve_element_data[0] = JS_NewBool(ctx, FALSE);
+ resolve_element_data[1] = (JSValueConst)JS_NewInt32(ctx, index);
+ resolve_element_data[2] = values;
+ resolve_element_data[3] = resolving_funcs[is_promise_any];
+ resolve_element_data[4] = resolve_element_env;
+ resolve_element =
+ JS_NewCFunctionData(ctx, js_promise_all_resolve_element, 1,
+ magic, 5, resolve_element_data);
+ if (JS_IsException(resolve_element)) {
+ JS_FreeValue(ctx, next_promise);
+ goto fail_reject1;
+ }
+
+ if (magic == PROMISE_MAGIC_allSettled) {
+ reject_element =
+ JS_NewCFunctionData(ctx, js_promise_all_resolve_element, 1,
+ magic | 4, 5, resolve_element_data);
+ if (JS_IsException(reject_element)) {
+ JS_FreeValue(ctx, next_promise);
+ goto fail_reject1;
+ }
+ } else if (magic == PROMISE_MAGIC_any) {
+ if (JS_DefinePropertyValueUint32(ctx, values, index,
+ JS_UNDEFINED, JS_PROP_C_W_E) < 0)
+ goto fail_reject1;
+ reject_element = resolve_element;
+ resolve_element = JS_DupValue(ctx, resolving_funcs[0]);
+ } else {
+ reject_element = JS_DupValue(ctx, resolving_funcs[1]);
+ }
+
+ if (remainingElementsCount_add(ctx, resolve_element_env, 1) < 0) {
+ JS_FreeValue(ctx, next_promise);
+ JS_FreeValue(ctx, resolve_element);
+ JS_FreeValue(ctx, reject_element);
+ goto fail_reject1;
+ }
+
+ then_args[0] = resolve_element;
+ then_args[1] = reject_element;
+ ret = JS_InvokeFree(ctx, next_promise, JS_ATOM_then, 2, then_args);
+ JS_FreeValue(ctx, resolve_element);
+ JS_FreeValue(ctx, reject_element);
+ if (check_exception_free(ctx, ret))
+ goto fail_reject1;
+ index++;
+ }
+
+ is_zero = remainingElementsCount_add(ctx, resolve_element_env, -1);
+ if (is_zero < 0)
+ goto fail_reject;
+ if (is_zero) {
+ if (magic == PROMISE_MAGIC_any) {
+ JSValue error;
+ error = js_aggregate_error_constructor(ctx, values);
+ if (JS_IsException(error))
+ goto fail_reject;
+ JS_FreeValue(ctx, values);
+ values = error;
+ }
+ ret = JS_Call(ctx, resolving_funcs[is_promise_any], JS_UNDEFINED,
+ 1, (JSValueConst *)&values);
+ if (check_exception_free(ctx, ret))
+ goto fail_reject;
+ }
+ }
+ done:
+ JS_FreeValue(ctx, promise_resolve);
+ JS_FreeValue(ctx, resolve_element_env);
+ JS_FreeValue(ctx, values);
+ JS_FreeValue(ctx, next_method);
+ JS_FreeValue(ctx, iter);
+ JS_FreeValue(ctx, resolving_funcs[0]);
+ JS_FreeValue(ctx, resolving_funcs[1]);
+ return result_promise;
+ fail:
+ JS_FreeValue(ctx, result_promise);
+ result_promise = JS_EXCEPTION;
+ goto done;
+}
+
+static JSValue js_promise_race(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValue result_promise, resolving_funcs[2], item, next_promise, ret;
+ JSValue next_method = JS_UNDEFINED, iter = JS_UNDEFINED;
+ JSValue promise_resolve = JS_UNDEFINED;
+ BOOL done;
+
+ if (!JS_IsObject(this_val))
+ return JS_ThrowTypeErrorNotAnObject(ctx);
+ result_promise = js_new_promise_capability(ctx, resolving_funcs, this_val);
+ if (JS_IsException(result_promise))
+ return result_promise;
+ promise_resolve = JS_GetProperty(ctx, this_val, JS_ATOM_resolve);
+ if (JS_IsException(promise_resolve) ||
+ check_function(ctx, promise_resolve))
+ goto fail_reject;
+ iter = JS_GetIterator(ctx, argv[0], FALSE);
+ if (JS_IsException(iter)) {
+ JSValue error;
+ fail_reject:
+ error = JS_GetException(ctx);
+ ret = JS_Call(ctx, resolving_funcs[1], JS_UNDEFINED, 1,
+ (JSValueConst *)&error);
+ JS_FreeValue(ctx, error);
+ if (JS_IsException(ret))
+ goto fail;
+ JS_FreeValue(ctx, ret);
+ } else {
+ next_method = JS_GetProperty(ctx, iter, JS_ATOM_next);
+ if (JS_IsException(next_method))
+ goto fail_reject;
+
+ for(;;) {
+ /* XXX: conformance: should close the iterator if error on 'done'
+ access, but not on 'value' access */
+ item = JS_IteratorNext(ctx, iter, next_method, 0, NULL, &done);
+ if (JS_IsException(item))
+ goto fail_reject;
+ if (done)
+ break;
+ next_promise = JS_Call(ctx, promise_resolve,
+ this_val, 1, (JSValueConst *)&item);
+ JS_FreeValue(ctx, item);
+ if (JS_IsException(next_promise)) {
+ fail_reject1:
+ JS_IteratorClose(ctx, iter, TRUE);
+ goto fail_reject;
+ }
+ ret = JS_InvokeFree(ctx, next_promise, JS_ATOM_then, 2,
+ (JSValueConst *)resolving_funcs);
+ if (check_exception_free(ctx, ret))
+ goto fail_reject1;
+ }
+ }
+ done:
+ JS_FreeValue(ctx, promise_resolve);
+ JS_FreeValue(ctx, next_method);
+ JS_FreeValue(ctx, iter);
+ JS_FreeValue(ctx, resolving_funcs[0]);
+ JS_FreeValue(ctx, resolving_funcs[1]);
+ return result_promise;
+ fail:
+ //JS_FreeValue(ctx, next_method); // why not???
+ JS_FreeValue(ctx, result_promise);
+ result_promise = JS_EXCEPTION;
+ goto done;
+}
+
+static __exception int perform_promise_then(JSContext *ctx,
+ JSValueConst promise,
+ JSValueConst *resolve_reject,
+ JSValueConst *cap_resolving_funcs)
+{
+ JSPromiseData *s = JS_GetOpaque(promise, JS_CLASS_PROMISE);
+ JSPromiseReactionData *rd_array[2], *rd;
+ int i, j;
+
+ rd_array[0] = NULL;
+ rd_array[1] = NULL;
+ for(i = 0; i < 2; i++) {
+ JSValueConst handler;
+ rd = js_mallocz(ctx, sizeof(*rd));
+ if (!rd) {
+ if (i == 1)
+ promise_reaction_data_free(ctx->rt, rd_array[0]);
+ return -1;
+ }
+ for(j = 0; j < 2; j++)
+ rd->resolving_funcs[j] = JS_DupValue(ctx, cap_resolving_funcs[j]);
+ handler = resolve_reject[i];
+ if (!JS_IsFunction(ctx, handler))
+ handler = JS_UNDEFINED;
+ rd->handler = JS_DupValue(ctx, handler);
+ rd_array[i] = rd;
+ }
+
+ if (s->promise_state == JS_PROMISE_PENDING) {
+ for(i = 0; i < 2; i++)
+ list_add_tail(&rd_array[i]->link, &s->promise_reactions[i]);
+ } else {
+ JSValueConst args[5];
+ if (s->promise_state == JS_PROMISE_REJECTED && !s->is_handled) {
+ JSRuntime *rt = ctx->rt;
+ if (rt->host_promise_rejection_tracker) {
+ rt->host_promise_rejection_tracker(ctx, promise, s->promise_result,
+ TRUE, rt->host_promise_rejection_tracker_opaque);
+ }
+ }
+ i = s->promise_state - JS_PROMISE_FULFILLED;
+ rd = rd_array[i];
+ args[0] = rd->resolving_funcs[0];
+ args[1] = rd->resolving_funcs[1];
+ args[2] = rd->handler;
+ args[3] = JS_NewBool(ctx, i);
+ args[4] = s->promise_result;
+ JS_EnqueueJob(ctx, promise_reaction_job, 5, args);
+ for(i = 0; i < 2; i++)
+ promise_reaction_data_free(ctx->rt, rd_array[i]);
+ }
+ s->is_handled = TRUE;
+ return 0;
+}
+
+static JSValue js_promise_then(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValue ctor, result_promise, resolving_funcs[2];
+ JSPromiseData *s;
+ int i, ret;
+
+ s = JS_GetOpaque2(ctx, this_val, JS_CLASS_PROMISE);
+ if (!s)
+ return JS_EXCEPTION;
+
+ ctor = JS_SpeciesConstructor(ctx, this_val, JS_UNDEFINED);
+ if (JS_IsException(ctor))
+ return ctor;
+ result_promise = js_new_promise_capability(ctx, resolving_funcs, ctor);
+ JS_FreeValue(ctx, ctor);
+ if (JS_IsException(result_promise))
+ return result_promise;
+ ret = perform_promise_then(ctx, this_val, argv,
+ (JSValueConst *)resolving_funcs);
+ for(i = 0; i < 2; i++)
+ JS_FreeValue(ctx, resolving_funcs[i]);
+ if (ret) {
+ JS_FreeValue(ctx, result_promise);
+ return JS_EXCEPTION;
+ }
+ return result_promise;
+}
+
+static JSValue js_promise_catch(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValueConst args[2];
+ args[0] = JS_UNDEFINED;
+ args[1] = argv[0];
+ return JS_Invoke(ctx, this_val, JS_ATOM_then, 2, args);
+}
+
+static JSValue js_promise_finally_value_thunk(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv,
+ int magic, JSValue *func_data)
+{
+ return JS_DupValue(ctx, func_data[0]);
+}
+
+static JSValue js_promise_finally_thrower(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv,
+ int magic, JSValue *func_data)
+{
+ return JS_Throw(ctx, JS_DupValue(ctx, func_data[0]));
+}
+
+static JSValue js_promise_then_finally_func(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv,
+ int magic, JSValue *func_data)
+{
+ JSValueConst ctor = func_data[0];
+ JSValueConst onFinally = func_data[1];
+ JSValue res, promise, ret, then_func;
+
+ res = JS_Call(ctx, onFinally, JS_UNDEFINED, 0, NULL);
+ if (JS_IsException(res))
+ return res;
+ promise = js_promise_resolve(ctx, ctor, 1, (JSValueConst *)&res, 0);
+ JS_FreeValue(ctx, res);
+ if (JS_IsException(promise))
+ return promise;
+ if (magic == 0) {
+ then_func = JS_NewCFunctionData(ctx, js_promise_finally_value_thunk, 0,
+ 0, 1, argv);
+ } else {
+ then_func = JS_NewCFunctionData(ctx, js_promise_finally_thrower, 0,
+ 0, 1, argv);
+ }
+ if (JS_IsException(then_func)) {
+ JS_FreeValue(ctx, promise);
+ return then_func;
+ }
+ ret = JS_InvokeFree(ctx, promise, JS_ATOM_then, 1, (JSValueConst *)&then_func);
+ JS_FreeValue(ctx, then_func);
+ return ret;
+}
+
+static JSValue js_promise_finally(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValueConst onFinally = argv[0];
+ JSValue ctor, ret;
+ JSValue then_funcs[2];
+ JSValueConst func_data[2];
+ int i;
+
+ ctor = JS_SpeciesConstructor(ctx, this_val, JS_UNDEFINED);
+ if (JS_IsException(ctor))
+ return ctor;
+ if (!JS_IsFunction(ctx, onFinally)) {
+ then_funcs[0] = JS_DupValue(ctx, onFinally);
+ then_funcs[1] = JS_DupValue(ctx, onFinally);
+ } else {
+ func_data[0] = ctor;
+ func_data[1] = onFinally;
+ for(i = 0; i < 2; i++) {
+ then_funcs[i] = JS_NewCFunctionData(ctx, js_promise_then_finally_func, 1, i, 2, func_data);
+ if (JS_IsException(then_funcs[i])) {
+ if (i == 1)
+ JS_FreeValue(ctx, then_funcs[0]);
+ JS_FreeValue(ctx, ctor);
+ return JS_EXCEPTION;
+ }
+ }
+ }
+ JS_FreeValue(ctx, ctor);
+ ret = JS_Invoke(ctx, this_val, JS_ATOM_then, 2, (JSValueConst *)then_funcs);
+ JS_FreeValue(ctx, then_funcs[0]);
+ JS_FreeValue(ctx, then_funcs[1]);
+ return ret;
+}
+
+static const JSCFunctionListEntry js_promise_funcs[] = {
+ JS_CFUNC_MAGIC_DEF("resolve", 1, js_promise_resolve, 0 ),
+ JS_CFUNC_MAGIC_DEF("reject", 1, js_promise_resolve, 1 ),
+ JS_CFUNC_MAGIC_DEF("all", 1, js_promise_all, PROMISE_MAGIC_all ),
+ JS_CFUNC_MAGIC_DEF("allSettled", 1, js_promise_all, PROMISE_MAGIC_allSettled ),
+ JS_CFUNC_MAGIC_DEF("any", 1, js_promise_all, PROMISE_MAGIC_any ),
+ JS_CFUNC_DEF("race", 1, js_promise_race ),
+ JS_CFUNC_DEF("withResolvers", 0, js_promise_withResolvers ),
+ JS_CGETSET_DEF("[Symbol.species]", js_get_this, NULL),
+};
+
+static const JSCFunctionListEntry js_promise_proto_funcs[] = {
+ JS_CFUNC_DEF("then", 2, js_promise_then ),
+ JS_CFUNC_DEF("catch", 1, js_promise_catch ),
+ JS_CFUNC_DEF("finally", 1, js_promise_finally ),
+ JS_PROP_STRING_DEF("[Symbol.toStringTag]", "Promise", JS_PROP_CONFIGURABLE ),
+};
+
+/* AsyncFunction */
+static const JSCFunctionListEntry js_async_function_proto_funcs[] = {
+ JS_PROP_STRING_DEF("[Symbol.toStringTag]", "AsyncFunction", JS_PROP_CONFIGURABLE ),
+};
+
+static JSValue js_async_from_sync_iterator_unwrap(JSContext *ctx,
+ JSValueConst this_val,
+ int argc, JSValueConst *argv,
+ int magic, JSValue *func_data)
+{
+ return js_create_iterator_result(ctx, JS_DupValue(ctx, argv[0]),
+ JS_ToBool(ctx, func_data[0]));
+}
+
+static JSValue js_async_from_sync_iterator_unwrap_func_create(JSContext *ctx,
+ BOOL done)
+{
+ JSValueConst func_data[1];
+
+ func_data[0] = (JSValueConst)JS_NewBool(ctx, done);
+ return JS_NewCFunctionData(ctx, js_async_from_sync_iterator_unwrap,
+ 1, 0, 1, func_data);
+}
+
+/* AsyncIteratorPrototype */
+
+static const JSCFunctionListEntry js_async_iterator_proto_funcs[] = {
+ JS_CFUNC_DEF("[Symbol.asyncIterator]", 0, js_iterator_proto_iterator ),
+};
+
+/* AsyncFromSyncIteratorPrototype */
+
+typedef struct JSAsyncFromSyncIteratorData {
+ JSValue sync_iter;
+ JSValue next_method;
+} JSAsyncFromSyncIteratorData;
+
+static void js_async_from_sync_iterator_finalizer(JSRuntime *rt, JSValue val)
+{
+ JSAsyncFromSyncIteratorData *s =
+ JS_GetOpaque(val, JS_CLASS_ASYNC_FROM_SYNC_ITERATOR);
+ if (s) {
+ JS_FreeValueRT(rt, s->sync_iter);
+ JS_FreeValueRT(rt, s->next_method);
+ js_free_rt(rt, s);
+ }
+}
+
+static void js_async_from_sync_iterator_mark(JSRuntime *rt, JSValueConst val,
+ JS_MarkFunc *mark_func)
+{
+ JSAsyncFromSyncIteratorData *s =
+ JS_GetOpaque(val, JS_CLASS_ASYNC_FROM_SYNC_ITERATOR);
+ if (s) {
+ JS_MarkValue(rt, s->sync_iter, mark_func);
+ JS_MarkValue(rt, s->next_method, mark_func);
+ }
+}
+
+static JSValue JS_CreateAsyncFromSyncIterator(JSContext *ctx,
+ JSValueConst sync_iter)
+{
+ JSValue async_iter, next_method;
+ JSAsyncFromSyncIteratorData *s;
+
+ next_method = JS_GetProperty(ctx, sync_iter, JS_ATOM_next);
+ if (JS_IsException(next_method))
+ return JS_EXCEPTION;
+ async_iter = JS_NewObjectClass(ctx, JS_CLASS_ASYNC_FROM_SYNC_ITERATOR);
+ if (JS_IsException(async_iter)) {
+ JS_FreeValue(ctx, next_method);
+ return async_iter;
+ }
+ s = js_mallocz(ctx, sizeof(*s));
+ if (!s) {
+ JS_FreeValue(ctx, async_iter);
+ JS_FreeValue(ctx, next_method);
+ return JS_EXCEPTION;
+ }
+ s->sync_iter = JS_DupValue(ctx, sync_iter);
+ s->next_method = next_method;
+ JS_SetOpaque(async_iter, s);
+ return async_iter;
+}
+
+static JSValue js_async_from_sync_iterator_next(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv,
+ int magic)
+{
+ JSValue promise, resolving_funcs[2], value, err, method;
+ JSAsyncFromSyncIteratorData *s;
+ int done;
+ int is_reject;
+
+ promise = JS_NewPromiseCapability(ctx, resolving_funcs);
+ if (JS_IsException(promise))
+ return JS_EXCEPTION;
+ s = JS_GetOpaque(this_val, JS_CLASS_ASYNC_FROM_SYNC_ITERATOR);
+ if (!s) {
+ JS_ThrowTypeError(ctx, "not an Async-from-Sync Iterator");
+ goto reject;
+ }
+
+ if (magic == GEN_MAGIC_NEXT) {
+ method = JS_DupValue(ctx, s->next_method);
+ } else {
+ method = JS_GetProperty(ctx, s->sync_iter,
+ magic == GEN_MAGIC_RETURN ? JS_ATOM_return :
+ JS_ATOM_throw);
+ if (JS_IsException(method))
+ goto reject;
+ if (JS_IsUndefined(method) || JS_IsNull(method)) {
+ if (magic == GEN_MAGIC_RETURN) {
+ err = js_create_iterator_result(ctx, JS_DupValue(ctx, argv[0]), TRUE);
+ is_reject = 0;
+ } else {
+ err = JS_DupValue(ctx, argv[0]);
+ is_reject = 1;
+ }
+ goto done_resolve;
+ }
+ }
+ value = JS_IteratorNext2(ctx, s->sync_iter, method,
+ argc >= 1 ? 1 : 0, argv, &done);
+ JS_FreeValue(ctx, method);
+ if (JS_IsException(value))
+ goto reject;
+ if (done == 2) {
+ JSValue obj = value;
+ value = JS_IteratorGetCompleteValue(ctx, obj, &done);
+ JS_FreeValue(ctx, obj);
+ if (JS_IsException(value))
+ goto reject;
+ }
+
+ if (JS_IsException(value)) {
+ JSValue res2;
+ reject:
+ err = JS_GetException(ctx);
+ is_reject = 1;
+ done_resolve:
+ res2 = JS_Call(ctx, resolving_funcs[is_reject], JS_UNDEFINED,
+ 1, (JSValueConst *)&err);
+ JS_FreeValue(ctx, err);
+ JS_FreeValue(ctx, res2);
+ JS_FreeValue(ctx, resolving_funcs[0]);
+ JS_FreeValue(ctx, resolving_funcs[1]);
+ return promise;
+ }
+ {
+ JSValue value_wrapper_promise, resolve_reject[2];
+ int res;
+
+ value_wrapper_promise = js_promise_resolve(ctx, ctx->promise_ctor,
+ 1, (JSValueConst *)&value, 0);
+ if (JS_IsException(value_wrapper_promise)) {
+ JS_FreeValue(ctx, value);
+ goto reject;
+ }
+
+ resolve_reject[0] =
+ js_async_from_sync_iterator_unwrap_func_create(ctx, done);
+ if (JS_IsException(resolve_reject[0])) {
+ JS_FreeValue(ctx, value_wrapper_promise);
+ goto fail;
+ }
+ JS_FreeValue(ctx, value);
+ resolve_reject[1] = JS_UNDEFINED;
+
+ res = perform_promise_then(ctx, value_wrapper_promise,
+ (JSValueConst *)resolve_reject,
+ (JSValueConst *)resolving_funcs);
+ JS_FreeValue(ctx, resolve_reject[0]);
+ JS_FreeValue(ctx, value_wrapper_promise);
+ JS_FreeValue(ctx, resolving_funcs[0]);
+ JS_FreeValue(ctx, resolving_funcs[1]);
+ if (res) {
+ JS_FreeValue(ctx, promise);
+ return JS_EXCEPTION;
+ }
+ }
+ return promise;
+ fail:
+ JS_FreeValue(ctx, value);
+ JS_FreeValue(ctx, resolving_funcs[0]);
+ JS_FreeValue(ctx, resolving_funcs[1]);
+ JS_FreeValue(ctx, promise);
+ return JS_EXCEPTION;
+}
+
+static const JSCFunctionListEntry js_async_from_sync_iterator_proto_funcs[] = {
+ JS_CFUNC_MAGIC_DEF("next", 1, js_async_from_sync_iterator_next, GEN_MAGIC_NEXT ),
+ JS_CFUNC_MAGIC_DEF("return", 1, js_async_from_sync_iterator_next, GEN_MAGIC_RETURN ),
+ JS_CFUNC_MAGIC_DEF("throw", 1, js_async_from_sync_iterator_next, GEN_MAGIC_THROW ),
+};
+
+/* AsyncGeneratorFunction */
+
+static const JSCFunctionListEntry js_async_generator_function_proto_funcs[] = {
+ JS_PROP_STRING_DEF("[Symbol.toStringTag]", "AsyncGeneratorFunction", JS_PROP_CONFIGURABLE ),
+};
+
+/* AsyncGenerator prototype */
+
+static const JSCFunctionListEntry js_async_generator_proto_funcs[] = {
+ JS_CFUNC_MAGIC_DEF("next", 1, js_async_generator_next, GEN_MAGIC_NEXT ),
+ JS_CFUNC_MAGIC_DEF("return", 1, js_async_generator_next, GEN_MAGIC_RETURN ),
+ JS_CFUNC_MAGIC_DEF("throw", 1, js_async_generator_next, GEN_MAGIC_THROW ),
+ JS_PROP_STRING_DEF("[Symbol.toStringTag]", "AsyncGenerator", JS_PROP_CONFIGURABLE ),
+};
+
+static JSClassShortDef const js_async_class_def[] = {
+ { JS_ATOM_Promise, js_promise_finalizer, js_promise_mark }, /* JS_CLASS_PROMISE */
+ { JS_ATOM_PromiseResolveFunction, js_promise_resolve_function_finalizer, js_promise_resolve_function_mark }, /* JS_CLASS_PROMISE_RESOLVE_FUNCTION */
+ { JS_ATOM_PromiseRejectFunction, js_promise_resolve_function_finalizer, js_promise_resolve_function_mark }, /* JS_CLASS_PROMISE_REJECT_FUNCTION */
+ { JS_ATOM_AsyncFunction, js_bytecode_function_finalizer, js_bytecode_function_mark }, /* JS_CLASS_ASYNC_FUNCTION */
+ { JS_ATOM_AsyncFunctionResolve, js_async_function_resolve_finalizer, js_async_function_resolve_mark }, /* JS_CLASS_ASYNC_FUNCTION_RESOLVE */
+ { JS_ATOM_AsyncFunctionReject, js_async_function_resolve_finalizer, js_async_function_resolve_mark }, /* JS_CLASS_ASYNC_FUNCTION_REJECT */
+ { JS_ATOM_empty_string, js_async_from_sync_iterator_finalizer, js_async_from_sync_iterator_mark }, /* JS_CLASS_ASYNC_FROM_SYNC_ITERATOR */
+ { JS_ATOM_AsyncGeneratorFunction, js_bytecode_function_finalizer, js_bytecode_function_mark }, /* JS_CLASS_ASYNC_GENERATOR_FUNCTION */
+ { JS_ATOM_AsyncGenerator, js_async_generator_finalizer, js_async_generator_mark }, /* JS_CLASS_ASYNC_GENERATOR */
+};
+
+void JS_AddIntrinsicPromise(JSContext *ctx)
+{
+ JSRuntime *rt = ctx->rt;
+ JSValue obj1;
+
+ if (!JS_IsRegisteredClass(rt, JS_CLASS_PROMISE)) {
+ init_class_range(rt, js_async_class_def, JS_CLASS_PROMISE,
+ countof(js_async_class_def));
+ rt->class_array[JS_CLASS_PROMISE_RESOLVE_FUNCTION].call = js_promise_resolve_function_call;
+ rt->class_array[JS_CLASS_PROMISE_REJECT_FUNCTION].call = js_promise_resolve_function_call;
+ rt->class_array[JS_CLASS_ASYNC_FUNCTION].call = js_async_function_call;
+ rt->class_array[JS_CLASS_ASYNC_FUNCTION_RESOLVE].call = js_async_function_resolve_call;
+ rt->class_array[JS_CLASS_ASYNC_FUNCTION_REJECT].call = js_async_function_resolve_call;
+ rt->class_array[JS_CLASS_ASYNC_GENERATOR_FUNCTION].call = js_async_generator_function_call;
+ }
+
+ /* Promise */
+ ctx->class_proto[JS_CLASS_PROMISE] = JS_NewObject(ctx);
+ JS_SetPropertyFunctionList(ctx, ctx->class_proto[JS_CLASS_PROMISE],
+ js_promise_proto_funcs,
+ countof(js_promise_proto_funcs));
+ obj1 = JS_NewCFunction2(ctx, js_promise_constructor, "Promise", 1,
+ JS_CFUNC_constructor, 0);
+ ctx->promise_ctor = JS_DupValue(ctx, obj1);
+ JS_SetPropertyFunctionList(ctx, obj1,
+ js_promise_funcs,
+ countof(js_promise_funcs));
+ JS_NewGlobalCConstructor2(ctx, obj1, "Promise",
+ ctx->class_proto[JS_CLASS_PROMISE]);
+
+ /* AsyncFunction */
+ ctx->class_proto[JS_CLASS_ASYNC_FUNCTION] = JS_NewObjectProto(ctx, ctx->function_proto);
+ obj1 = JS_NewCFunction3(ctx, (JSCFunction *)js_function_constructor,
+ "AsyncFunction", 1,
+ JS_CFUNC_constructor_or_func_magic, JS_FUNC_ASYNC,
+ ctx->function_ctor);
+ JS_SetPropertyFunctionList(ctx,
+ ctx->class_proto[JS_CLASS_ASYNC_FUNCTION],
+ js_async_function_proto_funcs,
+ countof(js_async_function_proto_funcs));
+ JS_SetConstructor2(ctx, obj1, ctx->class_proto[JS_CLASS_ASYNC_FUNCTION],
+ 0, JS_PROP_CONFIGURABLE);
+ JS_FreeValue(ctx, obj1);
+
+ /* AsyncIteratorPrototype */
+ ctx->async_iterator_proto = JS_NewObject(ctx);
+ JS_SetPropertyFunctionList(ctx, ctx->async_iterator_proto,
+ js_async_iterator_proto_funcs,
+ countof(js_async_iterator_proto_funcs));
+
+ /* AsyncFromSyncIteratorPrototype */
+ ctx->class_proto[JS_CLASS_ASYNC_FROM_SYNC_ITERATOR] =
+ JS_NewObjectProto(ctx, ctx->async_iterator_proto);
+ JS_SetPropertyFunctionList(ctx, ctx->class_proto[JS_CLASS_ASYNC_FROM_SYNC_ITERATOR],
+ js_async_from_sync_iterator_proto_funcs,
+ countof(js_async_from_sync_iterator_proto_funcs));
+
+ /* AsyncGeneratorPrototype */
+ ctx->class_proto[JS_CLASS_ASYNC_GENERATOR] =
+ JS_NewObjectProto(ctx, ctx->async_iterator_proto);
+ JS_SetPropertyFunctionList(ctx,
+ ctx->class_proto[JS_CLASS_ASYNC_GENERATOR],
+ js_async_generator_proto_funcs,
+ countof(js_async_generator_proto_funcs));
+
+ /* AsyncGeneratorFunction */
+ ctx->class_proto[JS_CLASS_ASYNC_GENERATOR_FUNCTION] =
+ JS_NewObjectProto(ctx, ctx->function_proto);
+ obj1 = JS_NewCFunction3(ctx, (JSCFunction *)js_function_constructor,
+ "AsyncGeneratorFunction", 1,
+ JS_CFUNC_constructor_or_func_magic,
+ JS_FUNC_ASYNC_GENERATOR,
+ ctx->function_ctor);
+ JS_SetPropertyFunctionList(ctx,
+ ctx->class_proto[JS_CLASS_ASYNC_GENERATOR_FUNCTION],
+ js_async_generator_function_proto_funcs,
+ countof(js_async_generator_function_proto_funcs));
+ JS_SetConstructor2(ctx, ctx->class_proto[JS_CLASS_ASYNC_GENERATOR_FUNCTION],
+ ctx->class_proto[JS_CLASS_ASYNC_GENERATOR],
+ JS_PROP_CONFIGURABLE, JS_PROP_CONFIGURABLE);
+ JS_SetConstructor2(ctx, obj1, ctx->class_proto[JS_CLASS_ASYNC_GENERATOR_FUNCTION],
+ 0, JS_PROP_CONFIGURABLE);
+ JS_FreeValue(ctx, obj1);
+}
+
+/* URI handling */
+
+static int string_get_hex(JSString *p, int k, int n) {
+ int c = 0, h;
+ while (n-- > 0) {
+ if ((h = from_hex(string_get(p, k++))) < 0)
+ return -1;
+ c = (c << 4) | h;
+ }
+ return c;
+}
+
+static int isURIReserved(int c) {
+ return c < 0x100 && memchr(";/?:@&=+$,#", c, sizeof(";/?:@&=+$,#") - 1) != NULL;
+}
+
+static int __attribute__((format(printf, 2, 3))) js_throw_URIError(JSContext *ctx, const char *fmt, ...)
+{
+ va_list ap;
+
+ va_start(ap, fmt);
+ JS_ThrowError(ctx, JS_URI_ERROR, fmt, ap);
+ va_end(ap);
+ return -1;
+}
+
+static int hex_decode(JSContext *ctx, JSString *p, int k) {
+ int c;
+
+ if (k >= p->len || string_get(p, k) != '%')
+ return js_throw_URIError(ctx, "expecting %%");
+ if (k + 2 >= p->len || (c = string_get_hex(p, k + 1, 2)) < 0)
+ return js_throw_URIError(ctx, "expecting hex digit");
+
+ return c;
+}
+
+static JSValue js_global_decodeURI(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int isComponent)
+{
+ JSValue str;
+ StringBuffer b_s, *b = &b_s;
+ JSString *p;
+ int k, c, c1, n, c_min;
+
+ str = JS_ToString(ctx, argv[0]);
+ if (JS_IsException(str))
+ return str;
+
+ string_buffer_init(ctx, b, 0);
+
+ p = JS_VALUE_GET_STRING(str);
+ for (k = 0; k < p->len;) {
+ c = string_get(p, k);
+ if (c == '%') {
+ c = hex_decode(ctx, p, k);
+ if (c < 0)
+ goto fail;
+ k += 3;
+ if (c < 0x80) {
+ if (!isComponent && isURIReserved(c)) {
+ c = '%';
+ k -= 2;
+ }
+ } else {
+ /* Decode URI-encoded UTF-8 sequence */
+ if (c >= 0xc0 && c <= 0xdf) {
+ n = 1;
+ c_min = 0x80;
+ c &= 0x1f;
+ } else if (c >= 0xe0 && c <= 0xef) {
+ n = 2;
+ c_min = 0x800;
+ c &= 0xf;
+ } else if (c >= 0xf0 && c <= 0xf7) {
+ n = 3;
+ c_min = 0x10000;
+ c &= 0x7;
+ } else {
+ n = 0;
+ c_min = 1;
+ c = 0;
+ }
+ while (n-- > 0) {
+ c1 = hex_decode(ctx, p, k);
+ if (c1 < 0)
+ goto fail;
+ k += 3;
+ if ((c1 & 0xc0) != 0x80) {
+ c = 0;
+ break;
+ }
+ c = (c << 6) | (c1 & 0x3f);
+ }
+ if (c < c_min || c > 0x10FFFF || is_surrogate(c)) {
+ js_throw_URIError(ctx, "malformed UTF-8");
+ goto fail;
+ }
+ }
+ } else {
+ k++;
+ }
+ string_buffer_putc(b, c);
+ }
+ JS_FreeValue(ctx, str);
+ return string_buffer_end(b);
+
+fail:
+ JS_FreeValue(ctx, str);
+ string_buffer_free(b);
+ return JS_EXCEPTION;
+}
+
+static int isUnescaped(int c) {
+ static char const unescaped_chars[] =
+ "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+ "abcdefghijklmnopqrstuvwxyz"
+ "0123456789"
+ "@*_+-./";
+ return c < 0x100 &&
+ memchr(unescaped_chars, c, sizeof(unescaped_chars) - 1);
+}
+
+static int isURIUnescaped(int c, int isComponent) {
+ return c < 0x100 &&
+ ((c >= 0x61 && c <= 0x7a) ||
+ (c >= 0x41 && c <= 0x5a) ||
+ (c >= 0x30 && c <= 0x39) ||
+ memchr("-_.!~*'()", c, sizeof("-_.!~*'()") - 1) != NULL ||
+ (!isComponent && isURIReserved(c)));
+}
+
+static int encodeURI_hex(StringBuffer *b, int c) {
+ uint8_t buf[6];
+ int n = 0;
+ const char *hex = "0123456789ABCDEF";
+
+ buf[n++] = '%';
+ if (c >= 256) {
+ buf[n++] = 'u';
+ buf[n++] = hex[(c >> 12) & 15];
+ buf[n++] = hex[(c >> 8) & 15];
+ }
+ buf[n++] = hex[(c >> 4) & 15];
+ buf[n++] = hex[(c >> 0) & 15];
+ return string_buffer_write8(b, buf, n);
+}
+
+static JSValue js_global_encodeURI(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv,
+ int isComponent)
+{
+ JSValue str;
+ StringBuffer b_s, *b = &b_s;
+ JSString *p;
+ int k, c, c1;
+
+ str = JS_ToString(ctx, argv[0]);
+ if (JS_IsException(str))
+ return str;
+
+ p = JS_VALUE_GET_STRING(str);
+ string_buffer_init(ctx, b, p->len);
+ for (k = 0; k < p->len;) {
+ c = string_get(p, k);
+ k++;
+ if (isURIUnescaped(c, isComponent)) {
+ string_buffer_putc16(b, c);
+ } else {
+ if (is_lo_surrogate(c)) {
+ js_throw_URIError(ctx, "invalid character");
+ goto fail;
+ } else if (is_hi_surrogate(c)) {
+ if (k >= p->len) {
+ js_throw_URIError(ctx, "expecting surrogate pair");
+ goto fail;
+ }
+ c1 = string_get(p, k);
+ k++;
+ if (!is_lo_surrogate(c1)) {
+ js_throw_URIError(ctx, "expecting surrogate pair");
+ goto fail;
+ }
+ c = from_surrogate(c, c1);
+ }
+ if (c < 0x80) {
+ encodeURI_hex(b, c);
+ } else {
+ /* XXX: use C UTF-8 conversion ? */
+ if (c < 0x800) {
+ encodeURI_hex(b, (c >> 6) | 0xc0);
+ } else {
+ if (c < 0x10000) {
+ encodeURI_hex(b, (c >> 12) | 0xe0);
+ } else {
+ encodeURI_hex(b, (c >> 18) | 0xf0);
+ encodeURI_hex(b, ((c >> 12) & 0x3f) | 0x80);
+ }
+ encodeURI_hex(b, ((c >> 6) & 0x3f) | 0x80);
+ }
+ encodeURI_hex(b, (c & 0x3f) | 0x80);
+ }
+ }
+ }
+ JS_FreeValue(ctx, str);
+ return string_buffer_end(b);
+
+fail:
+ JS_FreeValue(ctx, str);
+ string_buffer_free(b);
+ return JS_EXCEPTION;
+}
+
+static JSValue js_global_escape(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValue str;
+ StringBuffer b_s, *b = &b_s;
+ JSString *p;
+ int i, len, c;
+
+ str = JS_ToString(ctx, argv[0]);
+ if (JS_IsException(str))
+ return str;
+
+ p = JS_VALUE_GET_STRING(str);
+ string_buffer_init(ctx, b, p->len);
+ for (i = 0, len = p->len; i < len; i++) {
+ c = string_get(p, i);
+ if (isUnescaped(c)) {
+ string_buffer_putc16(b, c);
+ } else {
+ encodeURI_hex(b, c);
+ }
+ }
+ JS_FreeValue(ctx, str);
+ return string_buffer_end(b);
+}
+
+static JSValue js_global_unescape(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValue str;
+ StringBuffer b_s, *b = &b_s;
+ JSString *p;
+ int i, len, c, n;
+
+ str = JS_ToString(ctx, argv[0]);
+ if (JS_IsException(str))
+ return str;
+
+ string_buffer_init(ctx, b, 0);
+ p = JS_VALUE_GET_STRING(str);
+ for (i = 0, len = p->len; i < len; i++) {
+ c = string_get(p, i);
+ if (c == '%') {
+ if (i + 6 <= len
+ && string_get(p, i + 1) == 'u'
+ && (n = string_get_hex(p, i + 2, 4)) >= 0) {
+ c = n;
+ i += 6 - 1;
+ } else
+ if (i + 3 <= len
+ && (n = string_get_hex(p, i + 1, 2)) >= 0) {
+ c = n;
+ i += 3 - 1;
+ }
+ }
+ string_buffer_putc16(b, c);
+ }
+ JS_FreeValue(ctx, str);
+ return string_buffer_end(b);
+}
+
+/* global object */
+
+static const JSCFunctionListEntry js_global_funcs[] = {
+ JS_CFUNC_DEF("parseInt", 2, js_parseInt ),
+ JS_CFUNC_DEF("parseFloat", 1, js_parseFloat ),
+ JS_CFUNC_DEF("isNaN", 1, js_global_isNaN ),
+ JS_CFUNC_DEF("isFinite", 1, js_global_isFinite ),
+
+ JS_CFUNC_MAGIC_DEF("decodeURI", 1, js_global_decodeURI, 0 ),
+ JS_CFUNC_MAGIC_DEF("decodeURIComponent", 1, js_global_decodeURI, 1 ),
+ JS_CFUNC_MAGIC_DEF("encodeURI", 1, js_global_encodeURI, 0 ),
+ JS_CFUNC_MAGIC_DEF("encodeURIComponent", 1, js_global_encodeURI, 1 ),
+ JS_CFUNC_DEF("escape", 1, js_global_escape ),
+ JS_CFUNC_DEF("unescape", 1, js_global_unescape ),
+ JS_PROP_DOUBLE_DEF("Infinity", 1.0 / 0.0, 0 ),
+ JS_PROP_DOUBLE_DEF("NaN", NAN, 0 ),
+ JS_PROP_UNDEFINED_DEF("undefined", 0 ),
+ JS_PROP_STRING_DEF("[Symbol.toStringTag]", "global", JS_PROP_CONFIGURABLE ),
+};
+
+/* Date */
+
+static int64_t math_mod(int64_t a, int64_t b) {
+ /* return positive modulo */
+ int64_t m = a % b;
+ return m + (m < 0) * b;
+}
+
+static int64_t floor_div(int64_t a, int64_t b) {
+ /* integer division rounding toward -Infinity */
+ int64_t m = a % b;
+ return (a - (m + (m < 0) * b)) / b;
+}
+
+static JSValue js_Date_parse(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv);
+
+static __exception int JS_ThisTimeValue(JSContext *ctx, double *valp, JSValueConst this_val)
+{
+ if (JS_VALUE_GET_TAG(this_val) == JS_TAG_OBJECT) {
+ JSObject *p = JS_VALUE_GET_OBJ(this_val);
+ if (p->class_id == JS_CLASS_DATE && JS_IsNumber(p->u.object_data))
+ return JS_ToFloat64(ctx, valp, p->u.object_data);
+ }
+ JS_ThrowTypeError(ctx, "not a Date object");
+ return -1;
+}
+
+static JSValue JS_SetThisTimeValue(JSContext *ctx, JSValueConst this_val, double v)
+{
+ if (JS_VALUE_GET_TAG(this_val) == JS_TAG_OBJECT) {
+ JSObject *p = JS_VALUE_GET_OBJ(this_val);
+ if (p->class_id == JS_CLASS_DATE) {
+ JS_FreeValue(ctx, p->u.object_data);
+ p->u.object_data = JS_NewFloat64(ctx, v);
+ return JS_DupValue(ctx, p->u.object_data);
+ }
+ }
+ return JS_ThrowTypeError(ctx, "not a Date object");
+}
+
+static int64_t days_from_year(int64_t y) {
+ return 365 * (y - 1970) + floor_div(y - 1969, 4) -
+ floor_div(y - 1901, 100) + floor_div(y - 1601, 400);
+}
+
+static int64_t days_in_year(int64_t y) {
+ return 365 + !(y % 4) - !(y % 100) + !(y % 400);
+}
+
+/* return the year, update days */
+static int64_t year_from_days(int64_t *days) {
+ int64_t y, d1, nd, d = *days;
+ y = floor_div(d * 10000, 3652425) + 1970;
+ /* the initial approximation is very good, so only a few
+ iterations are necessary */
+ for(;;) {
+ d1 = d - days_from_year(y);
+ if (d1 < 0) {
+ y--;
+ d1 += days_in_year(y);
+ } else {
+ nd = days_in_year(y);
+ if (d1 < nd)
+ break;
+ d1 -= nd;
+ y++;
+ }
+ }
+ *days = d1;
+ return y;
+}
+
+static int const month_days[] = { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
+static char const month_names[] = "JanFebMarAprMayJunJulAugSepOctNovDec";
+static char const day_names[] = "SunMonTueWedThuFriSat";
+
+static __exception int get_date_fields(JSContext *ctx, JSValueConst obj,
+ double fields[minimum_length(9)], int is_local, int force)
+{
+ double dval;
+ int64_t d, days, wd, y, i, md, h, m, s, ms, tz = 0;
+
+ if (JS_ThisTimeValue(ctx, &dval, obj))
+ return -1;
+
+ if (isnan(dval)) {
+ if (!force)
+ return FALSE; /* NaN */
+ d = 0; /* initialize all fields to 0 */
+ } else {
+ d = dval; /* assuming -8.64e15 <= dval <= -8.64e15 */
+ if (is_local) {
+ tz = -getTimezoneOffset(d);
+ d += tz * 60000;
+ }
+ }
+
+ /* result is >= 0, we can use % */
+ h = math_mod(d, 86400000);
+ days = (d - h) / 86400000;
+ ms = h % 1000;
+ h = (h - ms) / 1000;
+ s = h % 60;
+ h = (h - s) / 60;
+ m = h % 60;
+ h = (h - m) / 60;
+ wd = math_mod(days + 4, 7); /* week day */
+ y = year_from_days(&days);
+
+ for(i = 0; i < 11; i++) {
+ md = month_days[i];
+ if (i == 1)
+ md += days_in_year(y) - 365;
+ if (days < md)
+ break;
+ days -= md;
+ }
+ fields[0] = y;
+ fields[1] = i;
+ fields[2] = days + 1;
+ fields[3] = h;
+ fields[4] = m;
+ fields[5] = s;
+ fields[6] = ms;
+ fields[7] = wd;
+ fields[8] = tz;
+ return TRUE;
+}
+
+static double time_clip(double t) {
+ if (t >= -8.64e15 && t <= 8.64e15)
+ return trunc(t) + 0.0; /* convert -0 to +0 */
+ else
+ return NAN;
+}
+
+/* The spec mandates the use of 'double' and it specifies the order
+ of the operations */
+static double set_date_fields(double fields[minimum_length(7)], int is_local) {
+ double y, m, dt, ym, mn, day, h, s, milli, time, tv;
+ int yi, mi, i;
+ int64_t days;
+ volatile double temp; /* enforce evaluation order */
+
+ /* emulate 21.4.1.15 MakeDay ( year, month, date ) */
+ y = fields[0];
+ m = fields[1];
+ dt = fields[2];
+ ym = y + floor(m / 12);
+ mn = fmod(m, 12);
+ if (mn < 0)
+ mn += 12;
+ if (ym < -271821 || ym > 275760)
+ return NAN;
+
+ yi = ym;
+ mi = mn;
+ days = days_from_year(yi);
+ for(i = 0; i < mi; i++) {
+ days += month_days[i];
+ if (i == 1)
+ days += days_in_year(yi) - 365;
+ }
+ day = days + dt - 1;
+
+ /* emulate 21.4.1.14 MakeTime ( hour, min, sec, ms ) */
+ h = fields[3];
+ m = fields[4];
+ s = fields[5];
+ milli = fields[6];
+ /* Use a volatile intermediary variable to ensure order of evaluation
+ * as specified in ECMA. This fixes a test262 error on
+ * test262/test/built-ins/Date/UTC/fp-evaluation-order.js.
+ * Without the volatile qualifier, the compile can generate code
+ * that performs the computation in a different order or with instructions
+ * that produce a different result such as FMA (float multiply and add).
+ */
+ time = h * 3600000;
+ time += (temp = m * 60000);
+ time += (temp = s * 1000);
+ time += milli;
+
+ /* emulate 21.4.1.16 MakeDate ( day, time ) */
+ tv = (temp = day * 86400000) + time; /* prevent generation of FMA */
+ if (!isfinite(tv))
+ return NAN;
+
+ /* adjust for local time and clip */
+ if (is_local) {
+ int64_t ti = tv < INT64_MIN ? INT64_MIN : tv >= 0x1p63 ? INT64_MAX : (int64_t)tv;
+ tv += getTimezoneOffset(ti) * 60000;
+ }
+ return time_clip(tv);
+}
+
+static JSValue get_date_field(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int magic)
+{
+ // get_date_field(obj, n, is_local)
+ double fields[9];
+ int res, n, is_local;
+
+ is_local = magic & 0x0F;
+ n = (magic >> 4) & 0x0F;
+ res = get_date_fields(ctx, this_val, fields, is_local, 0);
+ if (res < 0)
+ return JS_EXCEPTION;
+ if (!res)
+ return JS_NAN;
+
+ if (magic & 0x100) { // getYear
+ fields[0] -= 1900;
+ }
+ return JS_NewFloat64(ctx, fields[n]);
+}
+
+static JSValue set_date_field(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int magic)
+{
+ // _field(obj, first_field, end_field, args, is_local)
+ double fields[9];
+ int res, first_field, end_field, is_local, i, n;
+ double d, a;
+
+ d = NAN;
+ first_field = (magic >> 8) & 0x0F;
+ end_field = (magic >> 4) & 0x0F;
+ is_local = magic & 0x0F;
+
+ res = get_date_fields(ctx, this_val, fields, is_local, first_field == 0);
+ if (res < 0)
+ return JS_EXCEPTION;
+
+ // Argument coercion is observable and must be done unconditionally.
+ n = min_int(argc, end_field - first_field);
+ for(i = 0; i < n; i++) {
+ if (JS_ToFloat64(ctx, &a, argv[i]))
+ return JS_EXCEPTION;
+ if (!isfinite(a))
+ res = FALSE;
+ fields[first_field + i] = trunc(a);
+ }
+ if (res && argc > 0)
+ d = set_date_fields(fields, is_local);
+
+ return JS_SetThisTimeValue(ctx, this_val, d);
+}
+
+/* fmt:
+ 0: toUTCString: "Tue, 02 Jan 2018 23:04:46 GMT"
+ 1: toString: "Wed Jan 03 2018 00:05:22 GMT+0100 (CET)"
+ 2: toISOString: "2018-01-02T23:02:56.927Z"
+ 3: toLocaleString: "1/2/2018, 11:40:40 PM"
+ part: 1=date, 2=time 3=all
+ XXX: should use a variant of strftime().
+ */
+static JSValue get_date_string(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int magic)
+{
+ // _string(obj, fmt, part)
+ char buf[64];
+ double fields[9];
+ int res, fmt, part, pos;
+ int y, mon, d, h, m, s, ms, wd, tz;
+
+ fmt = (magic >> 4) & 0x0F;
+ part = magic & 0x0F;
+
+ res = get_date_fields(ctx, this_val, fields, fmt & 1, 0);
+ if (res < 0)
+ return JS_EXCEPTION;
+ if (!res) {
+ if (fmt == 2)
+ return JS_ThrowRangeError(ctx, "Date value is NaN");
+ else
+ return JS_NewString(ctx, "Invalid Date");
+ }
+
+ y = fields[0];
+ mon = fields[1];
+ d = fields[2];
+ h = fields[3];
+ m = fields[4];
+ s = fields[5];
+ ms = fields[6];
+ wd = fields[7];
+ tz = fields[8];
+
+ pos = 0;
+
+ if (part & 1) { /* date part */
+ switch(fmt) {
+ case 0:
+ pos += snprintf(buf + pos, sizeof(buf) - pos,
+ "%.3s, %02d %.3s %0*d ",
+ day_names + wd * 3, d,
+ month_names + mon * 3, 4 + (y < 0), y);
+ break;
+ case 1:
+ pos += snprintf(buf + pos, sizeof(buf) - pos,
+ "%.3s %.3s %02d %0*d",
+ day_names + wd * 3,
+ month_names + mon * 3, d, 4 + (y < 0), y);
+ if (part == 3) {
+ buf[pos++] = ' ';
+ }
+ break;
+ case 2:
+ if (y >= 0 && y <= 9999) {
+ pos += snprintf(buf + pos, sizeof(buf) - pos,
+ "%04d", y);
+ } else {
+ pos += snprintf(buf + pos, sizeof(buf) - pos,
+ "%+07d", y);
+ }
+ pos += snprintf(buf + pos, sizeof(buf) - pos,
+ "-%02d-%02dT", mon + 1, d);
+ break;
+ case 3:
+ pos += snprintf(buf + pos, sizeof(buf) - pos,
+ "%02d/%02d/%0*d", mon + 1, d, 4 + (y < 0), y);
+ if (part == 3) {
+ buf[pos++] = ',';
+ buf[pos++] = ' ';
+ }
+ break;
+ }
+ }
+ if (part & 2) { /* time part */
+ switch(fmt) {
+ case 0:
+ pos += snprintf(buf + pos, sizeof(buf) - pos,
+ "%02d:%02d:%02d GMT", h, m, s);
+ break;
+ case 1:
+ pos += snprintf(buf + pos, sizeof(buf) - pos,
+ "%02d:%02d:%02d GMT", h, m, s);
+ if (tz < 0) {
+ buf[pos++] = '-';
+ tz = -tz;
+ } else {
+ buf[pos++] = '+';
+ }
+ /* tz is >= 0, can use % */
+ pos += snprintf(buf + pos, sizeof(buf) - pos,
+ "%02d%02d", tz / 60, tz % 60);
+ /* XXX: tack the time zone code? */
+ break;
+ case 2:
+ pos += snprintf(buf + pos, sizeof(buf) - pos,
+ "%02d:%02d:%02d.%03dZ", h, m, s, ms);
+ break;
+ case 3:
+ pos += snprintf(buf + pos, sizeof(buf) - pos,
+ "%02d:%02d:%02d %cM", (h + 11) % 12 + 1, m, s,
+ (h < 12) ? 'A' : 'P');
+ break;
+ }
+ }
+ return JS_NewStringLen(ctx, buf, pos);
+}
+
+/* OS dependent: return the UTC time in ms since 1970. */
+static int64_t date_now(void) {
+ struct timeval tv;
+ gettimeofday(&tv, NULL);
+ return (int64_t)tv.tv_sec * 1000 + (tv.tv_usec / 1000);
+}
+
+static JSValue js_date_constructor(JSContext *ctx, JSValueConst new_target,
+ int argc, JSValueConst *argv)
+{
+ // Date(y, mon, d, h, m, s, ms)
+ JSValue rv;
+ int i, n;
+ double a, val;
+
+ if (JS_IsUndefined(new_target)) {
+ /* invoked as function */
+ argc = 0;
+ }
+ n = argc;
+ if (n == 0) {
+ val = date_now();
+ } else if (n == 1) {
+ JSValue v, dv;
+ if (JS_VALUE_GET_TAG(argv[0]) == JS_TAG_OBJECT) {
+ JSObject *p = JS_VALUE_GET_OBJ(argv[0]);
+ if (p->class_id == JS_CLASS_DATE && JS_IsNumber(p->u.object_data)) {
+ if (JS_ToFloat64(ctx, &val, p->u.object_data))
+ return JS_EXCEPTION;
+ val = time_clip(val);
+ goto has_val;
+ }
+ }
+ v = JS_ToPrimitive(ctx, argv[0], HINT_NONE);
+ if (JS_IsString(v)) {
+ dv = js_Date_parse(ctx, JS_UNDEFINED, 1, (JSValueConst *)&v);
+ JS_FreeValue(ctx, v);
+ if (JS_IsException(dv))
+ return JS_EXCEPTION;
+ if (JS_ToFloat64Free(ctx, &val, dv))
+ return JS_EXCEPTION;
+ } else {
+ if (JS_ToFloat64Free(ctx, &val, v))
+ return JS_EXCEPTION;
+ }
+ val = time_clip(val);
+ } else {
+ double fields[] = { 0, 0, 1, 0, 0, 0, 0 };
+ if (n > 7)
+ n = 7;
+ for(i = 0; i < n; i++) {
+ if (JS_ToFloat64(ctx, &a, argv[i]))
+ return JS_EXCEPTION;
+ if (!isfinite(a))
+ break;
+ fields[i] = trunc(a);
+ if (i == 0 && fields[0] >= 0 && fields[0] < 100)
+ fields[0] += 1900;
+ }
+ val = (i == n) ? set_date_fields(fields, 1) : NAN;
+ }
+has_val:
+#if 0
+ JSValueConst args[3];
+ args[0] = new_target;
+ args[1] = ctx->class_proto[JS_CLASS_DATE];
+ args[2] = JS_NewFloat64(ctx, val);
+ rv = js___date_create(ctx, JS_UNDEFINED, 3, args);
+#else
+ rv = js_create_from_ctor(ctx, new_target, JS_CLASS_DATE);
+ if (!JS_IsException(rv))
+ JS_SetObjectData(ctx, rv, JS_NewFloat64(ctx, val));
+#endif
+ if (!JS_IsException(rv) && JS_IsUndefined(new_target)) {
+ /* invoked as a function, return (new Date()).toString(); */
+ JSValue s;
+ s = get_date_string(ctx, rv, 0, NULL, 0x13);
+ JS_FreeValue(ctx, rv);
+ rv = s;
+ }
+ return rv;
+}
+
+static JSValue js_Date_UTC(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ // UTC(y, mon, d, h, m, s, ms)
+ double fields[] = { 0, 0, 1, 0, 0, 0, 0 };
+ int i, n;
+ double a;
+
+ n = argc;
+ if (n == 0)
+ return JS_NAN;
+ if (n > 7)
+ n = 7;
+ for(i = 0; i < n; i++) {
+ if (JS_ToFloat64(ctx, &a, argv[i]))
+ return JS_EXCEPTION;
+ if (!isfinite(a))
+ return JS_NAN;
+ fields[i] = trunc(a);
+ if (i == 0 && fields[0] >= 0 && fields[0] < 100)
+ fields[0] += 1900;
+ }
+ return JS_NewFloat64(ctx, set_date_fields(fields, 0));
+}
+
+/* Date string parsing */
+
+static BOOL string_skip_char(const uint8_t *sp, int *pp, int c) {
+ if (sp[*pp] == c) {
+ *pp += 1;
+ return TRUE;
+ } else {
+ return FALSE;
+ }
+}
+
+/* skip spaces, update offset, return next char */
+static int string_skip_spaces(const uint8_t *sp, int *pp) {
+ int c;
+ while ((c = sp[*pp]) == ' ')
+ *pp += 1;
+ return c;
+}
+
+/* skip dashes dots and commas */
+static int string_skip_separators(const uint8_t *sp, int *pp) {
+ int c;
+ while ((c = sp[*pp]) == '-' || c == '/' || c == '.' || c == ',')
+ *pp += 1;
+ return c;
+}
+
+/* skip a word, stop on spaces, digits and separators, update offset */
+static int string_skip_until(const uint8_t *sp, int *pp, const char *stoplist) {
+ int c;
+ while (!strchr(stoplist, c = sp[*pp]))
+ *pp += 1;
+ return c;
+}
+
+/* parse a numeric field (max_digits = 0 -> no maximum) */
+static BOOL string_get_digits(const uint8_t *sp, int *pp, int *pval,
+ int min_digits, int max_digits)
+{
+ int v = 0;
+ int c, p = *pp, p_start;
+
+ p_start = p;
+ while ((c = sp[p]) >= '0' && c <= '9') {
+ v = v * 10 + c - '0';
+ p++;
+ if (p - p_start == max_digits)
+ break;
+ }
+ if (p - p_start < min_digits)
+ return FALSE;
+ *pval = v;
+ *pp = p;
+ return TRUE;
+}
+
+static BOOL string_get_milliseconds(const uint8_t *sp, int *pp, int *pval) {
+ /* parse optional fractional part as milliseconds and truncate. */
+ /* spec does not indicate which rounding should be used */
+ int mul = 100, ms = 0, c, p_start, p = *pp;
+
+ c = sp[p];
+ if (c == '.' || c == ',') {
+ p++;
+ p_start = p;
+ while ((c = sp[p]) >= '0' && c <= '9') {
+ ms += (c - '0') * mul;
+ mul /= 10;
+ p++;
+ if (p - p_start == 9)
+ break;
+ }
+ if (p > p_start) {
+ /* only consume the separator if digits are present */
+ *pval = ms;
+ *pp = p;
+ }
+ }
+ return TRUE;
+}
+
+static uint8_t upper_ascii(uint8_t c) {
+ return c >= 'a' && c <= 'z' ? c - 'a' + 'A' : c;
+}
+
+static BOOL string_get_tzoffset(const uint8_t *sp, int *pp, int *tzp, BOOL strict) {
+ int tz = 0, sgn, hh, mm, p = *pp;
+
+ sgn = sp[p++];
+ if (sgn == '+' || sgn == '-') {
+ int n = p;
+ if (!string_get_digits(sp, &p, &hh, 1, 9))
+ return FALSE;
+ n = p - n;
+ if (strict && n != 2 && n != 4)
+ return FALSE;
+ while (n > 4) {
+ n -= 2;
+ hh /= 100;
+ }
+ if (n > 2) {
+ mm = hh % 100;
+ hh = hh / 100;
+ } else {
+ mm = 0;
+ if (string_skip_char(sp, &p, ':') /* optional separator */
+ && !string_get_digits(sp, &p, &mm, 2, 2))
+ return FALSE;
+ }
+ if (hh > 23 || mm > 59)
+ return FALSE;
+ tz = hh * 60 + mm;
+ if (sgn != '+')
+ tz = -tz;
+ } else
+ if (sgn != 'Z') {
+ return FALSE;
+ }
+ *pp = p;
+ *tzp = tz;
+ return TRUE;
+}
+
+static BOOL string_match(const uint8_t *sp, int *pp, const char *s) {
+ int p = *pp;
+ while (*s != '\0') {
+ if (upper_ascii(sp[p]) != upper_ascii(*s++))
+ return FALSE;
+ p++;
+ }
+ *pp = p;
+ return TRUE;
+}
+
+static int find_abbrev(const uint8_t *sp, int p, const char *list, int count) {
+ int n, i;
+
+ for (n = 0; n < count; n++) {
+ for (i = 0;; i++) {
+ if (upper_ascii(sp[p + i]) != upper_ascii(list[n * 3 + i]))
+ break;
+ if (i == 2)
+ return n;
+ }
+ }
+ return -1;
+}
+
+static BOOL string_get_month(const uint8_t *sp, int *pp, int *pval) {
+ int n;
+
+ n = find_abbrev(sp, *pp, month_names, 12);
+ if (n < 0)
+ return FALSE;
+
+ *pval = n + 1;
+ *pp += 3;
+ return TRUE;
+}
+
+/* parse toISOString format */
+static BOOL js_date_parse_isostring(const uint8_t *sp, int fields[9], BOOL *is_local) {
+ int sgn, i, p = 0;
+
+ /* initialize fields to the beginning of the Epoch */
+ for (i = 0; i < 9; i++) {
+ fields[i] = (i == 2);
+ }
+ *is_local = FALSE;
+
+ /* year is either yyyy digits or [+-]yyyyyy */
+ sgn = sp[p];
+ if (sgn == '-' || sgn == '+') {
+ p++;
+ if (!string_get_digits(sp, &p, &fields[0], 6, 6))
+ return FALSE;
+ if (sgn == '-') {
+ if (fields[0] == 0)
+ return FALSE; // reject -000000
+ fields[0] = -fields[0];
+ }
+ } else {
+ if (!string_get_digits(sp, &p, &fields[0], 4, 4))
+ return FALSE;
+ }
+ if (string_skip_char(sp, &p, '-')) {
+ if (!string_get_digits(sp, &p, &fields[1], 2, 2)) /* month */
+ return FALSE;
+ if (fields[1] < 1)
+ return FALSE;
+ fields[1] -= 1;
+ if (string_skip_char(sp, &p, '-')) {
+ if (!string_get_digits(sp, &p, &fields[2], 2, 2)) /* day */
+ return FALSE;
+ if (fields[2] < 1)
+ return FALSE;
+ }
+ }
+ if (string_skip_char(sp, &p, 'T')) {
+ *is_local = TRUE;
+ if (!string_get_digits(sp, &p, &fields[3], 2, 2) /* hour */
+ || !string_skip_char(sp, &p, ':')
+ || !string_get_digits(sp, &p, &fields[4], 2, 2)) { /* minute */
+ fields[3] = 100; // reject unconditionally
+ return TRUE;
+ }
+ if (string_skip_char(sp, &p, ':')) {
+ if (!string_get_digits(sp, &p, &fields[5], 2, 2)) /* second */
+ return FALSE;
+ string_get_milliseconds(sp, &p, &fields[6]);
+ }
+ }
+ /* parse the time zone offset if present: [+-]HH:mm or [+-]HHmm */
+ if (sp[p]) {
+ *is_local = FALSE;
+ if (!string_get_tzoffset(sp, &p, &fields[8], TRUE))
+ return FALSE;
+ }
+ /* error if extraneous characters */
+ return sp[p] == '\0';
+}
+
+static struct {
+ char name[6];
+ int16_t offset;
+} const js_tzabbr[] = {
+ { "GMT", 0 }, // Greenwich Mean Time
+ { "UTC", 0 }, // Coordinated Universal Time
+ { "UT", 0 }, // Universal Time
+ { "Z", 0 }, // Zulu Time
+ { "EDT", -4 * 60 }, // Eastern Daylight Time
+ { "EST", -5 * 60 }, // Eastern Standard Time
+ { "CDT", -5 * 60 }, // Central Daylight Time
+ { "CST", -6 * 60 }, // Central Standard Time
+ { "MDT", -6 * 60 }, // Mountain Daylight Time
+ { "MST", -7 * 60 }, // Mountain Standard Time
+ { "PDT", -7 * 60 }, // Pacific Daylight Time
+ { "PST", -8 * 60 }, // Pacific Standard Time
+ { "WET", +0 * 60 }, // Western European Time
+ { "WEST", +1 * 60 }, // Western European Summer Time
+ { "CET", +1 * 60 }, // Central European Time
+ { "CEST", +2 * 60 }, // Central European Summer Time
+ { "EET", +2 * 60 }, // Eastern European Time
+ { "EEST", +3 * 60 }, // Eastern European Summer Time
+};
+
+static BOOL string_get_tzabbr(const uint8_t *sp, int *pp, int *offset) {
+ for (size_t i = 0; i < countof(js_tzabbr); i++) {
+ if (string_match(sp, pp, js_tzabbr[i].name)) {
+ *offset = js_tzabbr[i].offset;
+ return TRUE;
+ }
+ }
+ return FALSE;
+}
+
+/* parse toString, toUTCString and other formats */
+static BOOL js_date_parse_otherstring(const uint8_t *sp,
+ int fields[minimum_length(9)],
+ BOOL *is_local) {
+ int c, i, val, p = 0, p_start;
+ int num[3];
+ BOOL has_year = FALSE;
+ BOOL has_mon = FALSE;
+ BOOL has_time = FALSE;
+ int num_index = 0;
+
+ /* initialize fields to the beginning of 2001-01-01 */
+ fields[0] = 2001;
+ fields[1] = 1;
+ fields[2] = 1;
+ for (i = 3; i < 9; i++) {
+ fields[i] = 0;
+ }
+ *is_local = TRUE;
+
+ while (string_skip_spaces(sp, &p)) {
+ p_start = p;
+ if ((c = sp[p]) == '+' || c == '-') {
+ if (has_time && string_get_tzoffset(sp, &p, &fields[8], FALSE)) {
+ *is_local = FALSE;
+ } else {
+ p++;
+ if (string_get_digits(sp, &p, &val, 1, 9)) {
+ if (c == '-') {
+ if (val == 0)
+ return FALSE;
+ val = -val;
+ }
+ fields[0] = val;
+ has_year = TRUE;
+ }
+ }
+ } else
+ if (string_get_digits(sp, &p, &val, 1, 9)) {
+ if (string_skip_char(sp, &p, ':')) {
+ /* time part */
+ fields[3] = val;
+ if (!string_get_digits(sp, &p, &fields[4], 1, 2))
+ return FALSE;
+ if (string_skip_char(sp, &p, ':')) {
+ if (!string_get_digits(sp, &p, &fields[5], 1, 2))
+ return FALSE;
+ string_get_milliseconds(sp, &p, &fields[6]);
+ }
+ has_time = TRUE;
+ } else {
+ if (p - p_start > 2) {
+ fields[0] = val;
+ has_year = TRUE;
+ } else
+ if (val < 1 || val > 31) {
+ fields[0] = val + (val < 100) * 1900 + (val < 50) * 100;
+ has_year = TRUE;
+ } else {
+ if (num_index == 3)
+ return FALSE;
+ num[num_index++] = val;
+ }
+ }
+ } else
+ if (string_get_month(sp, &p, &fields[1])) {
+ has_mon = TRUE;
+ string_skip_until(sp, &p, "0123456789 -/(");
+ } else
+ if (has_time && string_match(sp, &p, "PM")) {
+ if (fields[3] < 12)
+ fields[3] += 12;
+ continue;
+ } else
+ if (has_time && string_match(sp, &p, "AM")) {
+ if (fields[3] == 12)
+ fields[3] -= 12;
+ continue;
+ } else
+ if (string_get_tzabbr(sp, &p, &fields[8])) {
+ *is_local = FALSE;
+ continue;
+ } else
+ if (c == '(') { /* skip parenthesized phrase */
+ int level = 0;
+ while ((c = sp[p]) != '\0') {
+ p++;
+ level += (c == '(');
+ level -= (c == ')');
+ if (!level)
+ break;
+ }
+ if (level > 0)
+ return FALSE;
+ } else
+ if (c == ')') {
+ return FALSE;
+ } else {
+ if (has_year + has_mon + has_time + num_index)
+ return FALSE;
+ /* skip a word */
+ string_skip_until(sp, &p, " -/(");
+ }
+ string_skip_separators(sp, &p);
+ }
+ if (num_index + has_year + has_mon > 3)
+ return FALSE;
+
+ switch (num_index) {
+ case 0:
+ if (!has_year)
+ return FALSE;
+ break;
+ case 1:
+ if (has_mon)
+ fields[2] = num[0];
+ else
+ fields[1] = num[0];
+ break;
+ case 2:
+ if (has_year) {
+ fields[1] = num[0];
+ fields[2] = num[1];
+ } else
+ if (has_mon) {
+ fields[0] = num[1] + (num[1] < 100) * 1900 + (num[1] < 50) * 100;
+ fields[2] = num[0];
+ } else {
+ fields[1] = num[0];
+ fields[2] = num[1];
+ }
+ break;
+ case 3:
+ fields[0] = num[2] + (num[2] < 100) * 1900 + (num[2] < 50) * 100;
+ fields[1] = num[0];
+ fields[2] = num[1];
+ break;
+ default:
+ return FALSE;
+ }
+ if (fields[1] < 1 || fields[2] < 1)
+ return FALSE;
+ fields[1] -= 1;
+ return TRUE;
+}
+
+static JSValue js_Date_parse(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValue s, rv;
+ int fields[9];
+ double fields1[9];
+ double d;
+ int i, c;
+ JSString *sp;
+ uint8_t buf[128];
+ BOOL is_local;
+
+ rv = JS_NAN;
+
+ s = JS_ToString(ctx, argv[0]);
+ if (JS_IsException(s))
+ return JS_EXCEPTION;
+
+ sp = JS_VALUE_GET_STRING(s);
+ /* convert the string as a byte array */
+ for (i = 0; i < sp->len && i < (int)countof(buf) - 1; i++) {
+ c = string_get(sp, i);
+ if (c > 255)
+ c = (c == 0x2212) ? '-' : 'x';
+ buf[i] = c;
+ }
+ buf[i] = '\0';
+ if (js_date_parse_isostring(buf, fields, &is_local)
+ || js_date_parse_otherstring(buf, fields, &is_local)) {
+ static int const field_max[6] = { 0, 11, 31, 24, 59, 59 };
+ BOOL valid = TRUE;
+ /* check field maximum values */
+ for (i = 1; i < 6; i++) {
+ if (fields[i] > field_max[i])
+ valid = FALSE;
+ }
+ /* special case 24:00:00.000 */
+ if (fields[3] == 24 && (fields[4] | fields[5] | fields[6]))
+ valid = FALSE;
+ if (valid) {
+ for(i = 0; i < 7; i++)
+ fields1[i] = fields[i];
+ d = set_date_fields(fields1, is_local) - fields[8] * 60000;
+ rv = JS_NewFloat64(ctx, d);
+ }
+ }
+ JS_FreeValue(ctx, s);
+ return rv;
+}
+
+static JSValue js_Date_now(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ // now()
+ return JS_NewInt64(ctx, date_now());
+}
+
+static JSValue js_date_Symbol_toPrimitive(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ // Symbol_toPrimitive(hint)
+ JSValueConst obj = this_val;
+ JSAtom hint = JS_ATOM_NULL;
+ int hint_num;
+
+ if (!JS_IsObject(obj))
+ return JS_ThrowTypeErrorNotAnObject(ctx);
+
+ if (JS_IsString(argv[0])) {
+ hint = JS_ValueToAtom(ctx, argv[0]);
+ if (hint == JS_ATOM_NULL)
+ return JS_EXCEPTION;
+ JS_FreeAtom(ctx, hint);
+ }
+ switch (hint) {
+ case JS_ATOM_number:
+ case JS_ATOM_integer:
+ hint_num = HINT_NUMBER;
+ break;
+ case JS_ATOM_string:
+ case JS_ATOM_default:
+ hint_num = HINT_STRING;
+ break;
+ default:
+ return JS_ThrowTypeError(ctx, "invalid hint");
+ }
+ return JS_ToPrimitive(ctx, obj, hint_num | HINT_FORCE_ORDINARY);
+}
+
+static JSValue js_date_getTimezoneOffset(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ // getTimezoneOffset()
+ double v;
+
+ if (JS_ThisTimeValue(ctx, &v, this_val))
+ return JS_EXCEPTION;
+ if (isnan(v))
+ return JS_NAN;
+ else
+ /* assuming -8.64e15 <= v <= -8.64e15 */
+ return JS_NewInt64(ctx, getTimezoneOffset((int64_t)trunc(v)));
+}
+
+static JSValue js_date_getTime(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ // getTime()
+ double v;
+
+ if (JS_ThisTimeValue(ctx, &v, this_val))
+ return JS_EXCEPTION;
+ return JS_NewFloat64(ctx, v);
+}
+
+static JSValue js_date_setTime(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ // setTime(v)
+ double v;
+
+ if (JS_ThisTimeValue(ctx, &v, this_val) || JS_ToFloat64(ctx, &v, argv[0]))
+ return JS_EXCEPTION;
+ return JS_SetThisTimeValue(ctx, this_val, time_clip(v));
+}
+
+static JSValue js_date_setYear(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ // setYear(y)
+ double y;
+ JSValueConst args[1];
+
+ if (JS_ThisTimeValue(ctx, &y, this_val) || JS_ToFloat64(ctx, &y, argv[0]))
+ return JS_EXCEPTION;
+ y = +y;
+ if (isfinite(y)) {
+ y = trunc(y);
+ if (y >= 0 && y < 100)
+ y += 1900;
+ }
+ args[0] = JS_NewFloat64(ctx, y);
+ return set_date_field(ctx, this_val, 1, args, 0x011);
+}
+
+static JSValue js_date_toJSON(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ // toJSON(key)
+ JSValue obj, tv, method, rv;
+ double d;
+
+ rv = JS_EXCEPTION;
+ tv = JS_UNDEFINED;
+
+ obj = JS_ToObject(ctx, this_val);
+ tv = JS_ToPrimitive(ctx, obj, HINT_NUMBER);
+ if (JS_IsException(tv))
+ goto exception;
+ if (JS_IsNumber(tv)) {
+ if (JS_ToFloat64(ctx, &d, tv) < 0)
+ goto exception;
+ if (!isfinite(d)) {
+ rv = JS_NULL;
+ goto done;
+ }
+ }
+ method = JS_GetPropertyStr(ctx, obj, "toISOString");
+ if (JS_IsException(method))
+ goto exception;
+ if (!JS_IsFunction(ctx, method)) {
+ JS_ThrowTypeError(ctx, "object needs toISOString method");
+ JS_FreeValue(ctx, method);
+ goto exception;
+ }
+ rv = JS_CallFree(ctx, method, obj, 0, NULL);
+exception:
+done:
+ JS_FreeValue(ctx, obj);
+ JS_FreeValue(ctx, tv);
+ return rv;
+}
+
+static const JSCFunctionListEntry js_date_funcs[] = {
+ JS_CFUNC_DEF("now", 0, js_Date_now ),
+ JS_CFUNC_DEF("parse", 1, js_Date_parse ),
+ JS_CFUNC_DEF("UTC", 7, js_Date_UTC ),
+};
+
+static const JSCFunctionListEntry js_date_proto_funcs[] = {
+ JS_CFUNC_DEF("valueOf", 0, js_date_getTime ),
+ JS_CFUNC_MAGIC_DEF("toString", 0, get_date_string, 0x13 ),
+ JS_CFUNC_DEF("[Symbol.toPrimitive]", 1, js_date_Symbol_toPrimitive ),
+ JS_CFUNC_MAGIC_DEF("toUTCString", 0, get_date_string, 0x03 ),
+ JS_ALIAS_DEF("toGMTString", "toUTCString" ),
+ JS_CFUNC_MAGIC_DEF("toISOString", 0, get_date_string, 0x23 ),
+ JS_CFUNC_MAGIC_DEF("toDateString", 0, get_date_string, 0x11 ),
+ JS_CFUNC_MAGIC_DEF("toTimeString", 0, get_date_string, 0x12 ),
+ JS_CFUNC_MAGIC_DEF("toLocaleString", 0, get_date_string, 0x33 ),
+ JS_CFUNC_MAGIC_DEF("toLocaleDateString", 0, get_date_string, 0x31 ),
+ JS_CFUNC_MAGIC_DEF("toLocaleTimeString", 0, get_date_string, 0x32 ),
+ JS_CFUNC_DEF("getTimezoneOffset", 0, js_date_getTimezoneOffset ),
+ JS_CFUNC_DEF("getTime", 0, js_date_getTime ),
+ JS_CFUNC_MAGIC_DEF("getYear", 0, get_date_field, 0x101 ),
+ JS_CFUNC_MAGIC_DEF("getFullYear", 0, get_date_field, 0x01 ),
+ JS_CFUNC_MAGIC_DEF("getUTCFullYear", 0, get_date_field, 0x00 ),
+ JS_CFUNC_MAGIC_DEF("getMonth", 0, get_date_field, 0x11 ),
+ JS_CFUNC_MAGIC_DEF("getUTCMonth", 0, get_date_field, 0x10 ),
+ JS_CFUNC_MAGIC_DEF("getDate", 0, get_date_field, 0x21 ),
+ JS_CFUNC_MAGIC_DEF("getUTCDate", 0, get_date_field, 0x20 ),
+ JS_CFUNC_MAGIC_DEF("getHours", 0, get_date_field, 0x31 ),
+ JS_CFUNC_MAGIC_DEF("getUTCHours", 0, get_date_field, 0x30 ),
+ JS_CFUNC_MAGIC_DEF("getMinutes", 0, get_date_field, 0x41 ),
+ JS_CFUNC_MAGIC_DEF("getUTCMinutes", 0, get_date_field, 0x40 ),
+ JS_CFUNC_MAGIC_DEF("getSeconds", 0, get_date_field, 0x51 ),
+ JS_CFUNC_MAGIC_DEF("getUTCSeconds", 0, get_date_field, 0x50 ),
+ JS_CFUNC_MAGIC_DEF("getMilliseconds", 0, get_date_field, 0x61 ),
+ JS_CFUNC_MAGIC_DEF("getUTCMilliseconds", 0, get_date_field, 0x60 ),
+ JS_CFUNC_MAGIC_DEF("getDay", 0, get_date_field, 0x71 ),
+ JS_CFUNC_MAGIC_DEF("getUTCDay", 0, get_date_field, 0x70 ),
+ JS_CFUNC_DEF("setTime", 1, js_date_setTime ),
+ JS_CFUNC_MAGIC_DEF("setMilliseconds", 1, set_date_field, 0x671 ),
+ JS_CFUNC_MAGIC_DEF("setUTCMilliseconds", 1, set_date_field, 0x670 ),
+ JS_CFUNC_MAGIC_DEF("setSeconds", 2, set_date_field, 0x571 ),
+ JS_CFUNC_MAGIC_DEF("setUTCSeconds", 2, set_date_field, 0x570 ),
+ JS_CFUNC_MAGIC_DEF("setMinutes", 3, set_date_field, 0x471 ),
+ JS_CFUNC_MAGIC_DEF("setUTCMinutes", 3, set_date_field, 0x470 ),
+ JS_CFUNC_MAGIC_DEF("setHours", 4, set_date_field, 0x371 ),
+ JS_CFUNC_MAGIC_DEF("setUTCHours", 4, set_date_field, 0x370 ),
+ JS_CFUNC_MAGIC_DEF("setDate", 1, set_date_field, 0x231 ),
+ JS_CFUNC_MAGIC_DEF("setUTCDate", 1, set_date_field, 0x230 ),
+ JS_CFUNC_MAGIC_DEF("setMonth", 2, set_date_field, 0x131 ),
+ JS_CFUNC_MAGIC_DEF("setUTCMonth", 2, set_date_field, 0x130 ),
+ JS_CFUNC_DEF("setYear", 1, js_date_setYear ),
+ JS_CFUNC_MAGIC_DEF("setFullYear", 3, set_date_field, 0x031 ),
+ JS_CFUNC_MAGIC_DEF("setUTCFullYear", 3, set_date_field, 0x030 ),
+ JS_CFUNC_DEF("toJSON", 1, js_date_toJSON ),
+};
+
+JSValue JS_NewDate(JSContext *ctx, double epoch_ms)
+{
+ JSValue obj = js_create_from_ctor(ctx, JS_UNDEFINED, JS_CLASS_DATE);
+ if (JS_IsException(obj))
+ return JS_EXCEPTION;
+ JS_SetObjectData(ctx, obj, __JS_NewFloat64(ctx, time_clip(epoch_ms)));
+ return obj;
+}
+
+void JS_AddIntrinsicDate(JSContext *ctx)
+{
+ JSValueConst obj;
+
+ /* Date */
+ ctx->class_proto[JS_CLASS_DATE] = JS_NewObject(ctx);
+ JS_SetPropertyFunctionList(ctx, ctx->class_proto[JS_CLASS_DATE], js_date_proto_funcs,
+ countof(js_date_proto_funcs));
+ obj = JS_NewGlobalCConstructor(ctx, "Date", js_date_constructor, 7,
+ ctx->class_proto[JS_CLASS_DATE]);
+ JS_SetPropertyFunctionList(ctx, obj, js_date_funcs, countof(js_date_funcs));
+}
+
+/* eval */
+
+void JS_AddIntrinsicEval(JSContext *ctx)
+{
+ ctx->eval_internal = __JS_EvalInternal;
+}
+
+#ifdef CONFIG_BIGNUM
+
+/* Operators */
+
+static void js_operator_set_finalizer(JSRuntime *rt, JSValue val)
+{
+ JSOperatorSetData *opset = JS_GetOpaque(val, JS_CLASS_OPERATOR_SET);
+ int i, j;
+ JSBinaryOperatorDefEntry *ent;
+
+ if (opset) {
+ for(i = 0; i < JS_OVOP_COUNT; i++) {
+ if (opset->self_ops[i])
+ JS_FreeValueRT(rt, JS_MKPTR(JS_TAG_OBJECT, opset->self_ops[i]));
+ }
+ for(j = 0; j < opset->left.count; j++) {
+ ent = &opset->left.tab[j];
+ for(i = 0; i < JS_OVOP_BINARY_COUNT; i++) {
+ if (ent->ops[i])
+ JS_FreeValueRT(rt, JS_MKPTR(JS_TAG_OBJECT, ent->ops[i]));
+ }
+ }
+ js_free_rt(rt, opset->left.tab);
+ for(j = 0; j < opset->right.count; j++) {
+ ent = &opset->right.tab[j];
+ for(i = 0; i < JS_OVOP_BINARY_COUNT; i++) {
+ if (ent->ops[i])
+ JS_FreeValueRT(rt, JS_MKPTR(JS_TAG_OBJECT, ent->ops[i]));
+ }
+ }
+ js_free_rt(rt, opset->right.tab);
+ js_free_rt(rt, opset);
+ }
+}
+
+static void js_operator_set_mark(JSRuntime *rt, JSValueConst val,
+ JS_MarkFunc *mark_func)
+{
+ JSOperatorSetData *opset = JS_GetOpaque(val, JS_CLASS_OPERATOR_SET);
+ int i, j;
+ JSBinaryOperatorDefEntry *ent;
+
+ if (opset) {
+ for(i = 0; i < JS_OVOP_COUNT; i++) {
+ if (opset->self_ops[i])
+ JS_MarkValue(rt, JS_MKPTR(JS_TAG_OBJECT, opset->self_ops[i]),
+ mark_func);
+ }
+ for(j = 0; j < opset->left.count; j++) {
+ ent = &opset->left.tab[j];
+ for(i = 0; i < JS_OVOP_BINARY_COUNT; i++) {
+ if (ent->ops[i])
+ JS_MarkValue(rt, JS_MKPTR(JS_TAG_OBJECT, ent->ops[i]),
+ mark_func);
+ }
+ }
+ for(j = 0; j < opset->right.count; j++) {
+ ent = &opset->right.tab[j];
+ for(i = 0; i < JS_OVOP_BINARY_COUNT; i++) {
+ if (ent->ops[i])
+ JS_MarkValue(rt, JS_MKPTR(JS_TAG_OBJECT, ent->ops[i]),
+ mark_func);
+ }
+ }
+ }
+}
+
+
+/* create an OperatorSet object */
+static JSValue js_operators_create_internal(JSContext *ctx,
+ int argc, JSValueConst *argv,
+ BOOL is_primitive)
+{
+ JSValue opset_obj, prop, obj;
+ JSOperatorSetData *opset, *opset1;
+ JSBinaryOperatorDef *def;
+ JSValueConst arg;
+ int i, j;
+ JSBinaryOperatorDefEntry *new_tab;
+ JSBinaryOperatorDefEntry *ent;
+ uint32_t op_count;
+
+ if (ctx->rt->operator_count == UINT32_MAX) {
+ return JS_ThrowTypeError(ctx, "too many operators");
+ }
+ opset_obj = JS_NewObjectProtoClass(ctx, JS_NULL, JS_CLASS_OPERATOR_SET);
+ if (JS_IsException(opset_obj))
+ goto fail;
+ opset = js_mallocz(ctx, sizeof(*opset));
+ if (!opset)
+ goto fail;
+ JS_SetOpaque(opset_obj, opset);
+ if (argc >= 1) {
+ arg = argv[0];
+ /* self operators */
+ for(i = 0; i < JS_OVOP_COUNT; i++) {
+ prop = JS_GetPropertyStr(ctx, arg, js_overloadable_operator_names[i]);
+ if (JS_IsException(prop))
+ goto fail;
+ if (!JS_IsUndefined(prop)) {
+ if (check_function(ctx, prop)) {
+ JS_FreeValue(ctx, prop);
+ goto fail;
+ }
+ opset->self_ops[i] = JS_VALUE_GET_OBJ(prop);
+ }
+ }
+ }
+ /* left & right operators */
+ for(j = 1; j < argc; j++) {
+ arg = argv[j];
+ prop = JS_GetPropertyStr(ctx, arg, "left");
+ if (JS_IsException(prop))
+ goto fail;
+ def = &opset->right;
+ if (JS_IsUndefined(prop)) {
+ prop = JS_GetPropertyStr(ctx, arg, "right");
+ if (JS_IsException(prop))
+ goto fail;
+ if (JS_IsUndefined(prop)) {
+ JS_ThrowTypeError(ctx, "left or right property must be present");
+ goto fail;
+ }
+ def = &opset->left;
+ }
+ /* get the operator set */
+ obj = JS_GetProperty(ctx, prop, JS_ATOM_prototype);
+ JS_FreeValue(ctx, prop);
+ if (JS_IsException(obj))
+ goto fail;
+ prop = JS_GetProperty(ctx, obj, JS_ATOM_Symbol_operatorSet);
+ JS_FreeValue(ctx, obj);
+ if (JS_IsException(prop))
+ goto fail;
+ opset1 = JS_GetOpaque2(ctx, prop, JS_CLASS_OPERATOR_SET);
+ if (!opset1) {
+ JS_FreeValue(ctx, prop);
+ goto fail;
+ }
+ op_count = opset1->operator_counter;
+ JS_FreeValue(ctx, prop);
+
+ /* we assume there are few entries */
+ new_tab = js_realloc(ctx, def->tab,
+ (def->count + 1) * sizeof(def->tab[0]));
+ if (!new_tab)
+ goto fail;
+ def->tab = new_tab;
+ def->count++;
+ ent = def->tab + def->count - 1;
+ memset(ent, 0, sizeof(def->tab[0]));
+ ent->operator_index = op_count;
+
+ for(i = 0; i < JS_OVOP_BINARY_COUNT; i++) {
+ prop = JS_GetPropertyStr(ctx, arg,
+ js_overloadable_operator_names[i]);
+ if (JS_IsException(prop))
+ goto fail;
+ if (!JS_IsUndefined(prop)) {
+ if (check_function(ctx, prop)) {
+ JS_FreeValue(ctx, prop);
+ goto fail;
+ }
+ ent->ops[i] = JS_VALUE_GET_OBJ(prop);
+ }
+ }
+ }
+ opset->is_primitive = is_primitive;
+ opset->operator_counter = ctx->rt->operator_count++;
+ return opset_obj;
+ fail:
+ JS_FreeValue(ctx, opset_obj);
+ return JS_EXCEPTION;
+}
+
+static JSValue js_operators_create(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ return js_operators_create_internal(ctx, argc, argv, FALSE);
+}
+
+static JSValue js_operators_updateBigIntOperators(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValue opset_obj, prop;
+ JSOperatorSetData *opset;
+ const JSOverloadableOperatorEnum ops[2] = { JS_OVOP_DIV, JS_OVOP_POW };
+ JSOverloadableOperatorEnum op;
+ int i;
+
+ opset_obj = JS_GetProperty(ctx, ctx->class_proto[JS_CLASS_BIG_INT],
+ JS_ATOM_Symbol_operatorSet);
+ if (JS_IsException(opset_obj))
+ goto fail;
+ opset = JS_GetOpaque2(ctx, opset_obj, JS_CLASS_OPERATOR_SET);
+ if (!opset)
+ goto fail;
+ for(i = 0; i < countof(ops); i++) {
+ op = ops[i];
+ prop = JS_GetPropertyStr(ctx, argv[0],
+ js_overloadable_operator_names[op]);
+ if (JS_IsException(prop))
+ goto fail;
+ if (!JS_IsUndefined(prop)) {
+ if (!JS_IsNull(prop) && check_function(ctx, prop)) {
+ JS_FreeValue(ctx, prop);
+ goto fail;
+ }
+ if (opset->self_ops[op])
+ JS_FreeValue(ctx, JS_MKPTR(JS_TAG_OBJECT, opset->self_ops[op]));
+ if (JS_IsNull(prop)) {
+ opset->self_ops[op] = NULL;
+ } else {
+ opset->self_ops[op] = JS_VALUE_GET_PTR(prop);
+ }
+ }
+ }
+ JS_FreeValue(ctx, opset_obj);
+ return JS_UNDEFINED;
+ fail:
+ JS_FreeValue(ctx, opset_obj);
+ return JS_EXCEPTION;
+}
+
+static int js_operators_set_default(JSContext *ctx, JSValueConst obj)
+{
+ JSValue opset_obj;
+
+ if (!JS_IsObject(obj)) /* in case the prototype is not defined */
+ return 0;
+ opset_obj = js_operators_create_internal(ctx, 0, NULL, TRUE);
+ if (JS_IsException(opset_obj))
+ return -1;
+ /* cannot be modified by the user */
+ JS_DefinePropertyValue(ctx, obj, JS_ATOM_Symbol_operatorSet,
+ opset_obj, 0);
+ return 0;
+}
+
+static JSValue js_dummy_operators_ctor(JSContext *ctx, JSValueConst new_target,
+ int argc, JSValueConst *argv)
+{
+ return js_create_from_ctor(ctx, new_target, JS_CLASS_OBJECT);
+}
+
+static JSValue js_global_operators(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValue func_obj, proto, opset_obj;
+
+ func_obj = JS_UNDEFINED;
+ proto = JS_NewObject(ctx);
+ if (JS_IsException(proto))
+ return JS_EXCEPTION;
+ opset_obj = js_operators_create_internal(ctx, argc, argv, FALSE);
+ if (JS_IsException(opset_obj))
+ goto fail;
+ JS_DefinePropertyValue(ctx, proto, JS_ATOM_Symbol_operatorSet,
+ opset_obj, JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE);
+ func_obj = JS_NewCFunction2(ctx, js_dummy_operators_ctor, "Operators",
+ 0, JS_CFUNC_constructor, 0);
+ if (JS_IsException(func_obj))
+ goto fail;
+ JS_SetConstructor2(ctx, func_obj, proto,
+ 0, JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE);
+ JS_FreeValue(ctx, proto);
+ return func_obj;
+ fail:
+ JS_FreeValue(ctx, proto);
+ JS_FreeValue(ctx, func_obj);
+ return JS_EXCEPTION;
+}
+
+static const JSCFunctionListEntry js_operators_funcs[] = {
+ JS_CFUNC_DEF("create", 1, js_operators_create ),
+ JS_CFUNC_DEF("updateBigIntOperators", 2, js_operators_updateBigIntOperators ),
+};
+
+/* must be called after all overloadable base types are initialized */
+void JS_AddIntrinsicOperators(JSContext *ctx)
+{
+ JSValue obj;
+
+ ctx->allow_operator_overloading = TRUE;
+ obj = JS_NewCFunction(ctx, js_global_operators, "Operators", 1);
+ JS_SetPropertyFunctionList(ctx, obj,
+ js_operators_funcs,
+ countof(js_operators_funcs));
+ JS_DefinePropertyValue(ctx, ctx->global_obj, JS_ATOM_Operators,
+ obj,
+ JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE);
+ /* add default operatorSets */
+ js_operators_set_default(ctx, ctx->class_proto[JS_CLASS_BOOLEAN]);
+ js_operators_set_default(ctx, ctx->class_proto[JS_CLASS_NUMBER]);
+ js_operators_set_default(ctx, ctx->class_proto[JS_CLASS_STRING]);
+ js_operators_set_default(ctx, ctx->class_proto[JS_CLASS_BIG_INT]);
+ js_operators_set_default(ctx, ctx->class_proto[JS_CLASS_BIG_FLOAT]);
+ js_operators_set_default(ctx, ctx->class_proto[JS_CLASS_BIG_DECIMAL]);
+}
+#endif /* CONFIG_BIGNUM */
+
+/* BigInt */
+
+static JSValue JS_ToBigIntCtorFree(JSContext *ctx, JSValue val)
+{
+ uint32_t tag;
+
+ redo:
+ tag = JS_VALUE_GET_NORM_TAG(val);
+ switch(tag) {
+ case JS_TAG_INT:
+ case JS_TAG_BOOL:
+ val = JS_NewBigInt64(ctx, JS_VALUE_GET_INT(val));
+ break;
+ case JS_TAG_BIG_INT:
+ break;
+ case JS_TAG_FLOAT64:
+#ifdef CONFIG_BIGNUM
+ case JS_TAG_BIG_FLOAT:
+#endif
+ {
+ bf_t *a, a_s;
+
+ a = JS_ToBigFloat(ctx, &a_s, val);
+ if (!a) {
+ JS_FreeValue(ctx, val);
+ return JS_EXCEPTION;
+ }
+ if (!bf_is_finite(a)) {
+ JS_FreeValue(ctx, val);
+ val = JS_ThrowRangeError(ctx, "cannot convert NaN or Infinity to BigInt");
+ } else {
+ JSValue val1 = JS_NewBigInt(ctx);
+ bf_t *r;
+ int ret;
+ if (JS_IsException(val1)) {
+ JS_FreeValue(ctx, val);
+ return JS_EXCEPTION;
+ }
+ r = JS_GetBigInt(val1);
+ ret = bf_set(r, a);
+ ret |= bf_rint(r, BF_RNDZ);
+ JS_FreeValue(ctx, val);
+ if (ret & BF_ST_MEM_ERROR) {
+ JS_FreeValue(ctx, val1);
+ val = JS_ThrowOutOfMemory(ctx);
+ } else if (ret & BF_ST_INEXACT) {
+ JS_FreeValue(ctx, val1);
+ val = JS_ThrowRangeError(ctx, "cannot convert to BigInt: not an integer");
+ } else {
+ val = JS_CompactBigInt(ctx, val1);
+ }
+ }
+ if (a == &a_s)
+ bf_delete(a);
+ }
+ break;
+#ifdef CONFIG_BIGNUM
+ case JS_TAG_BIG_DECIMAL:
+ val = JS_ToStringFree(ctx, val);
+ if (JS_IsException(val))
+ break;
+ goto redo;
+#endif
+ case JS_TAG_STRING:
+ val = JS_StringToBigIntErr(ctx, val);
+ break;
+ case JS_TAG_OBJECT:
+ val = JS_ToPrimitiveFree(ctx, val, HINT_NUMBER);
+ if (JS_IsException(val))
+ break;
+ goto redo;
+ case JS_TAG_NULL:
+ case JS_TAG_UNDEFINED:
+ default:
+ JS_FreeValue(ctx, val);
+ return JS_ThrowTypeError(ctx, "cannot convert to BigInt");
+ }
+ return val;
+}
+
+static JSValue js_bigint_constructor(JSContext *ctx,
+ JSValueConst new_target,
+ int argc, JSValueConst *argv)
+{
+ if (!JS_IsUndefined(new_target))
+ return JS_ThrowTypeError(ctx, "not a constructor");
+ return JS_ToBigIntCtorFree(ctx, JS_DupValue(ctx, argv[0]));
+}
+
+static JSValue js_thisBigIntValue(JSContext *ctx, JSValueConst this_val)
+{
+ if (JS_IsBigInt(ctx, this_val))
+ return JS_DupValue(ctx, this_val);
+
+ if (JS_VALUE_GET_TAG(this_val) == JS_TAG_OBJECT) {
+ JSObject *p = JS_VALUE_GET_OBJ(this_val);
+ if (p->class_id == JS_CLASS_BIG_INT) {
+ if (JS_IsBigInt(ctx, p->u.object_data))
+ return JS_DupValue(ctx, p->u.object_data);
+ }
+ }
+ return JS_ThrowTypeError(ctx, "not a BigInt");
+}
+
+static JSValue js_bigint_toString(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValue val;
+ int base;
+ JSValue ret;
+
+ val = js_thisBigIntValue(ctx, this_val);
+ if (JS_IsException(val))
+ return val;
+ if (argc == 0 || JS_IsUndefined(argv[0])) {
+ base = 10;
+ } else {
+ base = js_get_radix(ctx, argv[0]);
+ if (base < 0)
+ goto fail;
+ }
+ ret = js_bigint_to_string1(ctx, val, base);
+ JS_FreeValue(ctx, val);
+ return ret;
+ fail:
+ JS_FreeValue(ctx, val);
+ return JS_EXCEPTION;
+}
+
+static JSValue js_bigint_valueOf(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ return js_thisBigIntValue(ctx, this_val);
+}
+
+#ifdef CONFIG_BIGNUM
+static JSValue js_bigint_div(JSContext *ctx,
+ JSValueConst this_val,
+ int argc, JSValueConst *argv, int magic)
+{
+ bf_t a_s, b_s, *a, *b, *r, *q;
+ int status;
+ JSValue q_val, r_val;
+
+ q_val = JS_NewBigInt(ctx);
+ if (JS_IsException(q_val))
+ return JS_EXCEPTION;
+ r_val = JS_NewBigInt(ctx);
+ if (JS_IsException(r_val))
+ goto fail;
+ b = NULL;
+ a = JS_ToBigInt(ctx, &a_s, argv[0]);
+ if (!a)
+ goto fail;
+ b = JS_ToBigInt(ctx, &b_s, argv[1]);
+ if (!b) {
+ JS_FreeBigInt(ctx, a, &a_s);
+ goto fail;
+ }
+ q = JS_GetBigInt(q_val);
+ r = JS_GetBigInt(r_val);
+ status = bf_divrem(q, r, a, b, BF_PREC_INF, BF_RNDZ, magic & 0xf);
+ JS_FreeBigInt(ctx, a, &a_s);
+ JS_FreeBigInt(ctx, b, &b_s);
+ if (unlikely(status)) {
+ throw_bf_exception(ctx, status);
+ goto fail;
+ }
+ q_val = JS_CompactBigInt(ctx, q_val);
+ if (magic & 0x10) {
+ JSValue ret;
+ ret = JS_NewArray(ctx);
+ if (JS_IsException(ret))
+ goto fail;
+ JS_SetPropertyUint32(ctx, ret, 0, q_val);
+ JS_SetPropertyUint32(ctx, ret, 1, JS_CompactBigInt(ctx, r_val));
+ return ret;
+ } else {
+ JS_FreeValue(ctx, r_val);
+ return q_val;
+ }
+ fail:
+ JS_FreeValue(ctx, q_val);
+ JS_FreeValue(ctx, r_val);
+ return JS_EXCEPTION;
+}
+
+static JSValue js_bigint_sqrt(JSContext *ctx,
+ JSValueConst this_val,
+ int argc, JSValueConst *argv, int magic)
+{
+ bf_t a_s, *a, *r, *rem;
+ int status;
+ JSValue r_val, rem_val;
+
+ r_val = JS_NewBigInt(ctx);
+ if (JS_IsException(r_val))
+ return JS_EXCEPTION;
+ rem_val = JS_NewBigInt(ctx);
+ if (JS_IsException(rem_val))
+ return JS_EXCEPTION;
+ r = JS_GetBigInt(r_val);
+ rem = JS_GetBigInt(rem_val);
+
+ a = JS_ToBigInt(ctx, &a_s, argv[0]);
+ if (!a)
+ goto fail;
+ status = bf_sqrtrem(r, rem, a);
+ JS_FreeBigInt(ctx, a, &a_s);
+ if (unlikely(status & ~BF_ST_INEXACT)) {
+ throw_bf_exception(ctx, status);
+ goto fail;
+ }
+ r_val = JS_CompactBigInt(ctx, r_val);
+ if (magic) {
+ JSValue ret;
+ ret = JS_NewArray(ctx);
+ if (JS_IsException(ret))
+ goto fail;
+ JS_SetPropertyUint32(ctx, ret, 0, r_val);
+ JS_SetPropertyUint32(ctx, ret, 1, JS_CompactBigInt(ctx, rem_val));
+ return ret;
+ } else {
+ JS_FreeValue(ctx, rem_val);
+ return r_val;
+ }
+ fail:
+ JS_FreeValue(ctx, r_val);
+ JS_FreeValue(ctx, rem_val);
+ return JS_EXCEPTION;
+}
+
+static JSValue js_bigint_op1(JSContext *ctx,
+ JSValueConst this_val,
+ int argc, JSValueConst *argv,
+ int magic)
+{
+ bf_t a_s, *a;
+ int64_t res;
+
+ a = JS_ToBigInt(ctx, &a_s, argv[0]);
+ if (!a)
+ return JS_EXCEPTION;
+ switch(magic) {
+ case 0: /* floorLog2 */
+ if (a->sign || a->expn <= 0) {
+ res = -1;
+ } else {
+ res = a->expn - 1;
+ }
+ break;
+ case 1: /* ctz */
+ if (bf_is_zero(a)) {
+ res = -1;
+ } else {
+ res = bf_get_exp_min(a);
+ }
+ break;
+ default:
+ abort();
+ }
+ JS_FreeBigInt(ctx, a, &a_s);
+ return JS_NewBigInt64(ctx, res);
+}
+#endif
+
+static JSValue js_bigint_asUintN(JSContext *ctx,
+ JSValueConst this_val,
+ int argc, JSValueConst *argv, int asIntN)
+{
+ uint64_t bits;
+ bf_t a_s, *a = &a_s, *r, mask_s, *mask = &mask_s;
+ JSValue res;
+
+ if (JS_ToIndex(ctx, &bits, argv[0]))
+ return JS_EXCEPTION;
+ res = JS_NewBigInt(ctx);
+ if (JS_IsException(res))
+ return JS_EXCEPTION;
+ r = JS_GetBigInt(res);
+ a = JS_ToBigInt(ctx, &a_s, argv[1]);
+ if (!a) {
+ JS_FreeValue(ctx, res);
+ return JS_EXCEPTION;
+ }
+ /* XXX: optimize */
+ r = JS_GetBigInt(res);
+ bf_init(ctx->bf_ctx, mask);
+ bf_set_ui(mask, 1);
+ bf_mul_2exp(mask, bits, BF_PREC_INF, BF_RNDZ);
+ bf_add_si(mask, mask, -1, BF_PREC_INF, BF_RNDZ);
+ bf_logic_and(r, a, mask);
+ if (asIntN && bits != 0) {
+ bf_set_ui(mask, 1);
+ bf_mul_2exp(mask, bits - 1, BF_PREC_INF, BF_RNDZ);
+ if (bf_cmpu(r, mask) >= 0) {
+ bf_set_ui(mask, 1);
+ bf_mul_2exp(mask, bits, BF_PREC_INF, BF_RNDZ);
+ bf_sub(r, r, mask, BF_PREC_INF, BF_RNDZ);
+ }
+ }
+ bf_delete(mask);
+ JS_FreeBigInt(ctx, a, &a_s);
+ return JS_CompactBigInt(ctx, res);
+}
+
+static const JSCFunctionListEntry js_bigint_funcs[] = {
+ JS_CFUNC_MAGIC_DEF("asUintN", 2, js_bigint_asUintN, 0 ),
+ JS_CFUNC_MAGIC_DEF("asIntN", 2, js_bigint_asUintN, 1 ),
+#ifdef CONFIG_BIGNUM
+ /* QuickJS extensions */
+ JS_CFUNC_MAGIC_DEF("tdiv", 2, js_bigint_div, BF_RNDZ ),
+ JS_CFUNC_MAGIC_DEF("fdiv", 2, js_bigint_div, BF_RNDD ),
+ JS_CFUNC_MAGIC_DEF("cdiv", 2, js_bigint_div, BF_RNDU ),
+ JS_CFUNC_MAGIC_DEF("ediv", 2, js_bigint_div, BF_DIVREM_EUCLIDIAN ),
+ JS_CFUNC_MAGIC_DEF("tdivrem", 2, js_bigint_div, BF_RNDZ | 0x10 ),
+ JS_CFUNC_MAGIC_DEF("fdivrem", 2, js_bigint_div, BF_RNDD | 0x10 ),
+ JS_CFUNC_MAGIC_DEF("cdivrem", 2, js_bigint_div, BF_RNDU | 0x10 ),
+ JS_CFUNC_MAGIC_DEF("edivrem", 2, js_bigint_div, BF_DIVREM_EUCLIDIAN | 0x10 ),
+ JS_CFUNC_MAGIC_DEF("sqrt", 1, js_bigint_sqrt, 0 ),
+ JS_CFUNC_MAGIC_DEF("sqrtrem", 1, js_bigint_sqrt, 1 ),
+ JS_CFUNC_MAGIC_DEF("floorLog2", 1, js_bigint_op1, 0 ),
+ JS_CFUNC_MAGIC_DEF("ctz", 1, js_bigint_op1, 1 ),
+#endif
+};
+
+static const JSCFunctionListEntry js_bigint_proto_funcs[] = {
+ JS_CFUNC_DEF("toString", 0, js_bigint_toString ),
+ JS_CFUNC_DEF("valueOf", 0, js_bigint_valueOf ),
+ JS_PROP_STRING_DEF("[Symbol.toStringTag]", "BigInt", JS_PROP_CONFIGURABLE ),
+};
+
+void JS_AddIntrinsicBigInt(JSContext *ctx)
+{
+ JSRuntime *rt = ctx->rt;
+ JSValueConst obj1;
+
+ rt->bigint_ops.to_string = js_bigint_to_string;
+ rt->bigint_ops.from_string = js_string_to_bigint;
+ rt->bigint_ops.unary_arith = js_unary_arith_bigint;
+ rt->bigint_ops.binary_arith = js_binary_arith_bigint;
+ rt->bigint_ops.compare = js_compare_bigfloat;
+
+ ctx->class_proto[JS_CLASS_BIG_INT] = JS_NewObject(ctx);
+ JS_SetPropertyFunctionList(ctx, ctx->class_proto[JS_CLASS_BIG_INT],
+ js_bigint_proto_funcs,
+ countof(js_bigint_proto_funcs));
+ obj1 = JS_NewGlobalCConstructor(ctx, "BigInt", js_bigint_constructor, 1,
+ ctx->class_proto[JS_CLASS_BIG_INT]);
+ JS_SetPropertyFunctionList(ctx, obj1, js_bigint_funcs,
+ countof(js_bigint_funcs));
+}
+
+#ifdef CONFIG_BIGNUM
+
+/* BigFloat */
+
+static JSValue js_thisBigFloatValue(JSContext *ctx, JSValueConst this_val)
+{
+ if (JS_IsBigFloat(this_val))
+ return JS_DupValue(ctx, this_val);
+
+ if (JS_VALUE_GET_TAG(this_val) == JS_TAG_OBJECT) {
+ JSObject *p = JS_VALUE_GET_OBJ(this_val);
+ if (p->class_id == JS_CLASS_BIG_FLOAT) {
+ if (JS_IsBigFloat(p->u.object_data))
+ return JS_DupValue(ctx, p->u.object_data);
+ }
+ }
+ return JS_ThrowTypeError(ctx, "not a bigfloat");
+}
+
+static JSValue js_bigfloat_toString(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValue val;
+ int base;
+ JSValue ret;
+
+ val = js_thisBigFloatValue(ctx, this_val);
+ if (JS_IsException(val))
+ return val;
+ if (argc == 0 || JS_IsUndefined(argv[0])) {
+ base = 10;
+ } else {
+ base = js_get_radix(ctx, argv[0]);
+ if (base < 0)
+ goto fail;
+ }
+ ret = js_ftoa(ctx, val, base, 0, BF_RNDN | BF_FTOA_FORMAT_FREE_MIN);
+ JS_FreeValue(ctx, val);
+ return ret;
+ fail:
+ JS_FreeValue(ctx, val);
+ return JS_EXCEPTION;
+}
+
+static JSValue js_bigfloat_valueOf(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ return js_thisBigFloatValue(ctx, this_val);
+}
+
+static int bigfloat_get_rnd_mode(JSContext *ctx, JSValueConst val)
+{
+ int rnd_mode;
+ if (JS_ToInt32Sat(ctx, &rnd_mode, val))
+ return -1;
+ if (rnd_mode < BF_RNDN || rnd_mode > BF_RNDF) {
+ JS_ThrowRangeError(ctx, "invalid rounding mode");
+ return -1;
+ }
+ return rnd_mode;
+}
+
+static JSValue js_bigfloat_toFixed(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValue val, ret;
+ int64_t f;
+ int rnd_mode, radix;
+
+ val = js_thisBigFloatValue(ctx, this_val);
+ if (JS_IsException(val))
+ return val;
+ if (JS_ToInt64Sat(ctx, &f, argv[0]))
+ goto fail;
+ if (f < 0 || f > BF_PREC_MAX) {
+ JS_ThrowRangeError(ctx, "invalid number of digits");
+ goto fail;
+ }
+ rnd_mode = BF_RNDNA;
+ radix = 10;
+ /* XXX: swap parameter order for rounding mode and radix */
+ if (argc > 1) {
+ rnd_mode = bigfloat_get_rnd_mode(ctx, argv[1]);
+ if (rnd_mode < 0)
+ goto fail;
+ }
+ if (argc > 2) {
+ radix = js_get_radix(ctx, argv[2]);
+ if (radix < 0)
+ goto fail;
+ }
+ ret = js_ftoa(ctx, val, radix, f, rnd_mode | BF_FTOA_FORMAT_FRAC);
+ JS_FreeValue(ctx, val);
+ return ret;
+ fail:
+ JS_FreeValue(ctx, val);
+ return JS_EXCEPTION;
+}
+
+static BOOL js_bigfloat_is_finite(JSContext *ctx, JSValueConst val)
+{
+ BOOL res;
+ uint32_t tag;
+
+ tag = JS_VALUE_GET_NORM_TAG(val);
+ switch(tag) {
+ case JS_TAG_BIG_FLOAT:
+ {
+ JSBigFloat *p = JS_VALUE_GET_PTR(val);
+ res = bf_is_finite(&p->num);
+ }
+ break;
+ default:
+ res = FALSE;
+ break;
+ }
+ return res;
+}
+
+static JSValue js_bigfloat_toExponential(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValue val, ret;
+ int64_t f;
+ int rnd_mode, radix;
+
+ val = js_thisBigFloatValue(ctx, this_val);
+ if (JS_IsException(val))
+ return val;
+ if (JS_ToInt64Sat(ctx, &f, argv[0]))
+ goto fail;
+ if (!js_bigfloat_is_finite(ctx, val)) {
+ ret = JS_ToString(ctx, val);
+ } else if (JS_IsUndefined(argv[0])) {
+ ret = js_ftoa(ctx, val, 10, 0,
+ BF_RNDN | BF_FTOA_FORMAT_FREE_MIN | BF_FTOA_FORCE_EXP);
+ } else {
+ if (f < 0 || f > BF_PREC_MAX) {
+ JS_ThrowRangeError(ctx, "invalid number of digits");
+ goto fail;
+ }
+ rnd_mode = BF_RNDNA;
+ radix = 10;
+ if (argc > 1) {
+ rnd_mode = bigfloat_get_rnd_mode(ctx, argv[1]);
+ if (rnd_mode < 0)
+ goto fail;
+ }
+ if (argc > 2) {
+ radix = js_get_radix(ctx, argv[2]);
+ if (radix < 0)
+ goto fail;
+ }
+ ret = js_ftoa(ctx, val, radix, f + 1,
+ rnd_mode | BF_FTOA_FORMAT_FIXED | BF_FTOA_FORCE_EXP);
+ }
+ JS_FreeValue(ctx, val);
+ return ret;
+ fail:
+ JS_FreeValue(ctx, val);
+ return JS_EXCEPTION;
+}
+
+static JSValue js_bigfloat_toPrecision(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValue val, ret;
+ int64_t p;
+ int rnd_mode, radix;
+
+ val = js_thisBigFloatValue(ctx, this_val);
+ if (JS_IsException(val))
+ return val;
+ if (JS_IsUndefined(argv[0]))
+ goto to_string;
+ if (JS_ToInt64Sat(ctx, &p, argv[0]))
+ goto fail;
+ if (!js_bigfloat_is_finite(ctx, val)) {
+ to_string:
+ ret = JS_ToString(ctx, this_val);
+ } else {
+ if (p < 1 || p > BF_PREC_MAX) {
+ JS_ThrowRangeError(ctx, "invalid number of digits");
+ goto fail;
+ }
+ rnd_mode = BF_RNDNA;
+ radix = 10;
+ if (argc > 1) {
+ rnd_mode = bigfloat_get_rnd_mode(ctx, argv[1]);
+ if (rnd_mode < 0)
+ goto fail;
+ }
+ if (argc > 2) {
+ radix = js_get_radix(ctx, argv[2]);
+ if (radix < 0)
+ goto fail;
+ }
+ ret = js_ftoa(ctx, val, radix, p, rnd_mode | BF_FTOA_FORMAT_FIXED);
+ }
+ JS_FreeValue(ctx, val);
+ return ret;
+ fail:
+ JS_FreeValue(ctx, val);
+ return JS_EXCEPTION;
+}
+
+static const JSCFunctionListEntry js_bigfloat_proto_funcs[] = {
+ JS_CFUNC_DEF("toString", 0, js_bigfloat_toString ),
+ JS_CFUNC_DEF("valueOf", 0, js_bigfloat_valueOf ),
+ JS_CFUNC_DEF("toPrecision", 1, js_bigfloat_toPrecision ),
+ JS_CFUNC_DEF("toFixed", 1, js_bigfloat_toFixed ),
+ JS_CFUNC_DEF("toExponential", 1, js_bigfloat_toExponential ),
+};
+
+static JSValue js_bigfloat_constructor(JSContext *ctx,
+ JSValueConst new_target,
+ int argc, JSValueConst *argv)
+{
+ JSValue val;
+ if (!JS_IsUndefined(new_target))
+ return JS_ThrowTypeError(ctx, "not a constructor");
+ if (argc == 0) {
+ bf_t *r;
+ val = JS_NewBigFloat(ctx);
+ if (JS_IsException(val))
+ return val;
+ r = JS_GetBigFloat(val);
+ bf_set_zero(r, 0);
+ } else {
+ val = JS_DupValue(ctx, argv[0]);
+ redo:
+ switch(JS_VALUE_GET_NORM_TAG(val)) {
+ case JS_TAG_BIG_FLOAT:
+ break;
+ case JS_TAG_FLOAT64:
+ {
+ bf_t *r;
+ double d = JS_VALUE_GET_FLOAT64(val);
+ val = JS_NewBigFloat(ctx);
+ if (JS_IsException(val))
+ break;
+ r = JS_GetBigFloat(val);
+ if (bf_set_float64(r, d))
+ goto fail;
+ }
+ break;
+ case JS_TAG_INT:
+ {
+ bf_t *r;
+ int32_t v = JS_VALUE_GET_INT(val);
+ val = JS_NewBigFloat(ctx);
+ if (JS_IsException(val))
+ break;
+ r = JS_GetBigFloat(val);
+ if (bf_set_si(r, v))
+ goto fail;
+ }
+ break;
+ case JS_TAG_BIG_INT:
+ /* We keep the full precision of the integer */
+ {
+ JSBigFloat *p = JS_VALUE_GET_PTR(val);
+ val = JS_MKPTR(JS_TAG_BIG_FLOAT, p);
+ }
+ break;
+ case JS_TAG_BIG_DECIMAL:
+ val = JS_ToStringFree(ctx, val);
+ if (JS_IsException(val))
+ break;
+ goto redo;
+ case JS_TAG_STRING:
+ {
+ const char *str, *p;
+ size_t len;
+ int err;
+
+ str = JS_ToCStringLen(ctx, &len, val);
+ JS_FreeValue(ctx, val);
+ if (!str)
+ return JS_EXCEPTION;
+ p = str;
+ p += skip_spaces(p);
+ if ((p - str) == len) {
+ bf_t *r;
+ val = JS_NewBigFloat(ctx);
+ if (JS_IsException(val))
+ break;
+ r = JS_GetBigFloat(val);
+ bf_set_zero(r, 0);
+ err = 0;
+ } else {
+ val = js_atof(ctx, p, &p, 0, ATOD_ACCEPT_BIN_OCT |
+ ATOD_TYPE_BIG_FLOAT |
+ ATOD_ACCEPT_PREFIX_AFTER_SIGN);
+ if (JS_IsException(val)) {
+ JS_FreeCString(ctx, str);
+ return JS_EXCEPTION;
+ }
+ p += skip_spaces(p);
+ err = ((p - str) != len);
+ }
+ JS_FreeCString(ctx, str);
+ if (err) {
+ JS_FreeValue(ctx, val);
+ return JS_ThrowSyntaxError(ctx, "invalid bigfloat literal");
+ }
+ }
+ break;
+ case JS_TAG_OBJECT:
+ val = JS_ToPrimitiveFree(ctx, val, HINT_NUMBER);
+ if (JS_IsException(val))
+ break;
+ goto redo;
+ case JS_TAG_NULL:
+ case JS_TAG_UNDEFINED:
+ default:
+ JS_FreeValue(ctx, val);
+ return JS_ThrowTypeError(ctx, "cannot convert to bigfloat");
+ }
+ }
+ return val;
+ fail:
+ JS_FreeValue(ctx, val);
+ return JS_EXCEPTION;
+}
+
+static JSValue js_bigfloat_get_const(JSContext *ctx,
+ JSValueConst this_val, int magic)
+{
+ bf_t *r;
+ JSValue val;
+ val = JS_NewBigFloat(ctx);
+ if (JS_IsException(val))
+ return val;
+ r = JS_GetBigFloat(val);
+ switch(magic) {
+ case 0: /* PI */
+ bf_const_pi(r, ctx->fp_env.prec, ctx->fp_env.flags);
+ break;
+ case 1: /* LN2 */
+ bf_const_log2(r, ctx->fp_env.prec, ctx->fp_env.flags);
+ break;
+ case 2: /* MIN_VALUE */
+ case 3: /* MAX_VALUE */
+ {
+ slimb_t e_range, e;
+ e_range = (limb_t)1 << (bf_get_exp_bits(ctx->fp_env.flags) - 1);
+ bf_set_ui(r, 1);
+ if (magic == 2) {
+ e = -e_range + 2;
+ if (ctx->fp_env.flags & BF_FLAG_SUBNORMAL)
+ e -= ctx->fp_env.prec - 1;
+ bf_mul_2exp(r, e, ctx->fp_env.prec, ctx->fp_env.flags);
+ } else {
+ bf_mul_2exp(r, ctx->fp_env.prec, ctx->fp_env.prec,
+ ctx->fp_env.flags);
+ bf_add_si(r, r, -1, ctx->fp_env.prec, ctx->fp_env.flags);
+ bf_mul_2exp(r, e_range - ctx->fp_env.prec, ctx->fp_env.prec,
+ ctx->fp_env.flags);
+ }
+ }
+ break;
+ case 4: /* EPSILON */
+ bf_set_ui(r, 1);
+ bf_mul_2exp(r, 1 - ctx->fp_env.prec,
+ ctx->fp_env.prec, ctx->fp_env.flags);
+ break;
+ default:
+ abort();
+ }
+ return val;
+}
+
+static JSValue js_bigfloat_parseFloat(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ bf_t *a;
+ const char *str;
+ JSValue ret;
+ int radix;
+ JSFloatEnv *fe;
+
+ str = JS_ToCString(ctx, argv[0]);
+ if (!str)
+ return JS_EXCEPTION;
+ if (JS_ToInt32(ctx, &radix, argv[1])) {
+ fail:
+ JS_FreeCString(ctx, str);
+ return JS_EXCEPTION;
+ }
+ if (radix != 0 && (radix < 2 || radix > 36)) {
+ JS_ThrowRangeError(ctx, "radix must be between 2 and 36");
+ goto fail;
+ }
+ fe = &ctx->fp_env;
+ if (argc > 2) {
+ fe = JS_GetOpaque2(ctx, argv[2], JS_CLASS_FLOAT_ENV);
+ if (!fe)
+ goto fail;
+ }
+ ret = JS_NewBigFloat(ctx);
+ if (JS_IsException(ret))
+ goto done;
+ a = JS_GetBigFloat(ret);
+ /* XXX: use js_atof() */
+ bf_atof(a, str, NULL, radix, fe->prec, fe->flags);
+ done:
+ JS_FreeCString(ctx, str);
+ return ret;
+}
+
+static JSValue js_bigfloat_isFinite(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValueConst val = argv[0];
+ JSBigFloat *p;
+
+ if (JS_VALUE_GET_NORM_TAG(val) != JS_TAG_BIG_FLOAT)
+ return JS_FALSE;
+ p = JS_VALUE_GET_PTR(val);
+ return JS_NewBool(ctx, bf_is_finite(&p->num));
+}
+
+static JSValue js_bigfloat_isNaN(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValueConst val = argv[0];
+ JSBigFloat *p;
+
+ if (JS_VALUE_GET_NORM_TAG(val) != JS_TAG_BIG_FLOAT)
+ return JS_FALSE;
+ p = JS_VALUE_GET_PTR(val);
+ return JS_NewBool(ctx, bf_is_nan(&p->num));
+}
+
+enum {
+ MATH_OP_ABS,
+ MATH_OP_FLOOR,
+ MATH_OP_CEIL,
+ MATH_OP_ROUND,
+ MATH_OP_TRUNC,
+ MATH_OP_SQRT,
+ MATH_OP_FPROUND,
+ MATH_OP_ACOS,
+ MATH_OP_ASIN,
+ MATH_OP_ATAN,
+ MATH_OP_ATAN2,
+ MATH_OP_COS,
+ MATH_OP_EXP,
+ MATH_OP_LOG,
+ MATH_OP_POW,
+ MATH_OP_SIN,
+ MATH_OP_TAN,
+ MATH_OP_FMOD,
+ MATH_OP_REM,
+ MATH_OP_SIGN,
+
+ MATH_OP_ADD,
+ MATH_OP_SUB,
+ MATH_OP_MUL,
+ MATH_OP_DIV,
+};
+
+static JSValue js_bigfloat_fop(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int magic)
+{
+ bf_t a_s, *a, *r;
+ JSFloatEnv *fe;
+ int rnd_mode;
+ JSValue op1, res;
+
+ op1 = JS_ToNumeric(ctx, argv[0]);
+ if (JS_IsException(op1))
+ return op1;
+ a = JS_ToBigFloat(ctx, &a_s, op1);
+ if (!a) {
+ JS_FreeValue(ctx, op1);
+ return JS_EXCEPTION;
+ }
+ fe = &ctx->fp_env;
+ if (argc > 1) {
+ fe = JS_GetOpaque2(ctx, argv[1], JS_CLASS_FLOAT_ENV);
+ if (!fe)
+ goto fail;
+ }
+ res = JS_NewBigFloat(ctx);
+ if (JS_IsException(res)) {
+ fail:
+ if (a == &a_s)
+ bf_delete(a);
+ JS_FreeValue(ctx, op1);
+ return JS_EXCEPTION;
+ }
+ r = JS_GetBigFloat(res);
+ switch (magic) {
+ case MATH_OP_ABS:
+ bf_set(r, a);
+ r->sign = 0;
+ break;
+ case MATH_OP_FLOOR:
+ rnd_mode = BF_RNDD;
+ goto rint;
+ case MATH_OP_CEIL:
+ rnd_mode = BF_RNDU;
+ goto rint;
+ case MATH_OP_ROUND:
+ rnd_mode = BF_RNDNA;
+ goto rint;
+ case MATH_OP_TRUNC:
+ rnd_mode = BF_RNDZ;
+ rint:
+ bf_set(r, a);
+ fe->status |= bf_rint(r, rnd_mode);
+ break;
+ case MATH_OP_SQRT:
+ fe->status |= bf_sqrt(r, a, fe->prec, fe->flags);
+ break;
+ case MATH_OP_FPROUND:
+ bf_set(r, a);
+ fe->status |= bf_round(r, fe->prec, fe->flags);
+ break;
+ case MATH_OP_ACOS:
+ fe->status |= bf_acos(r, a, fe->prec, fe->flags);
+ break;
+ case MATH_OP_ASIN:
+ fe->status |= bf_asin(r, a, fe->prec, fe->flags);
+ break;
+ case MATH_OP_ATAN:
+ fe->status |= bf_atan(r, a, fe->prec, fe->flags);
+ break;
+ case MATH_OP_COS:
+ fe->status |= bf_cos(r, a, fe->prec, fe->flags);
+ break;
+ case MATH_OP_EXP:
+ fe->status |= bf_exp(r, a, fe->prec, fe->flags);
+ break;
+ case MATH_OP_LOG:
+ fe->status |= bf_log(r, a, fe->prec, fe->flags);
+ break;
+ case MATH_OP_SIN:
+ fe->status |= bf_sin(r, a, fe->prec, fe->flags);
+ break;
+ case MATH_OP_TAN:
+ fe->status |= bf_tan(r, a, fe->prec, fe->flags);
+ break;
+ case MATH_OP_SIGN:
+ if (bf_is_nan(a) || bf_is_zero(a)) {
+ bf_set(r, a);
+ } else {
+ bf_set_si(r, 1 - 2 * a->sign);
+ }
+ break;
+ default:
+ abort();
+ }
+ if (a == &a_s)
+ bf_delete(a);
+ JS_FreeValue(ctx, op1);
+ return res;
+}
+
+static JSValue js_bigfloat_fop2(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int magic)
+{
+ bf_t a_s, *a, b_s, *b, r_s, *r = &r_s;
+ JSFloatEnv *fe;
+ JSValue op1, op2, res;
+
+ op1 = JS_ToNumeric(ctx, argv[0]);
+ if (JS_IsException(op1))
+ return op1;
+ op2 = JS_ToNumeric(ctx, argv[1]);
+ if (JS_IsException(op2)) {
+ JS_FreeValue(ctx, op1);
+ return op2;
+ }
+ a = JS_ToBigFloat(ctx, &a_s, op1);
+ if (!a)
+ goto fail1;
+ b = JS_ToBigFloat(ctx, &b_s, op2);
+ if (!b)
+ goto fail2;
+ fe = &ctx->fp_env;
+ if (argc > 2) {
+ fe = JS_GetOpaque2(ctx, argv[2], JS_CLASS_FLOAT_ENV);
+ if (!fe)
+ goto fail;
+ }
+ res = JS_NewBigFloat(ctx);
+ if (JS_IsException(res)) {
+ fail:
+ if (b == &b_s)
+ bf_delete(b);
+ fail2:
+ if (a == &a_s)
+ bf_delete(a);
+ fail1:
+ JS_FreeValue(ctx, op1);
+ JS_FreeValue(ctx, op2);
+ return JS_EXCEPTION;
+ }
+ r = JS_GetBigFloat(res);
+ switch (magic) {
+ case MATH_OP_ATAN2:
+ fe->status |= bf_atan2(r, a, b, fe->prec, fe->flags);
+ break;
+ case MATH_OP_POW:
+ fe->status |= bf_pow(r, a, b, fe->prec, fe->flags | BF_POW_JS_QUIRKS);
+ break;
+ case MATH_OP_FMOD:
+ fe->status |= bf_rem(r, a, b, fe->prec, fe->flags, BF_RNDZ);
+ break;
+ case MATH_OP_REM:
+ fe->status |= bf_rem(r, a, b, fe->prec, fe->flags, BF_RNDN);
+ break;
+ case MATH_OP_ADD:
+ fe->status |= bf_add(r, a, b, fe->prec, fe->flags);
+ break;
+ case MATH_OP_SUB:
+ fe->status |= bf_sub(r, a, b, fe->prec, fe->flags);
+ break;
+ case MATH_OP_MUL:
+ fe->status |= bf_mul(r, a, b, fe->prec, fe->flags);
+ break;
+ case MATH_OP_DIV:
+ fe->status |= bf_div(r, a, b, fe->prec, fe->flags);
+ break;
+ default:
+ abort();
+ }
+ if (a == &a_s)
+ bf_delete(a);
+ if (b == &b_s)
+ bf_delete(b);
+ JS_FreeValue(ctx, op1);
+ JS_FreeValue(ctx, op2);
+ return res;
+}
+
+static const JSCFunctionListEntry js_bigfloat_funcs[] = {
+ JS_CGETSET_MAGIC_DEF("PI", js_bigfloat_get_const, NULL, 0 ),
+ JS_CGETSET_MAGIC_DEF("LN2", js_bigfloat_get_const, NULL, 1 ),
+ JS_CGETSET_MAGIC_DEF("MIN_VALUE", js_bigfloat_get_const, NULL, 2 ),
+ JS_CGETSET_MAGIC_DEF("MAX_VALUE", js_bigfloat_get_const, NULL, 3 ),
+ JS_CGETSET_MAGIC_DEF("EPSILON", js_bigfloat_get_const, NULL, 4 ),
+ JS_CFUNC_DEF("parseFloat", 1, js_bigfloat_parseFloat ),
+ JS_CFUNC_DEF("isFinite", 1, js_bigfloat_isFinite ),
+ JS_CFUNC_DEF("isNaN", 1, js_bigfloat_isNaN ),
+ JS_CFUNC_MAGIC_DEF("abs", 1, js_bigfloat_fop, MATH_OP_ABS ),
+ JS_CFUNC_MAGIC_DEF("fpRound", 1, js_bigfloat_fop, MATH_OP_FPROUND ),
+ JS_CFUNC_MAGIC_DEF("floor", 1, js_bigfloat_fop, MATH_OP_FLOOR ),
+ JS_CFUNC_MAGIC_DEF("ceil", 1, js_bigfloat_fop, MATH_OP_CEIL ),
+ JS_CFUNC_MAGIC_DEF("round", 1, js_bigfloat_fop, MATH_OP_ROUND ),
+ JS_CFUNC_MAGIC_DEF("trunc", 1, js_bigfloat_fop, MATH_OP_TRUNC ),
+ JS_CFUNC_MAGIC_DEF("sqrt", 1, js_bigfloat_fop, MATH_OP_SQRT ),
+ JS_CFUNC_MAGIC_DEF("acos", 1, js_bigfloat_fop, MATH_OP_ACOS ),
+ JS_CFUNC_MAGIC_DEF("asin", 1, js_bigfloat_fop, MATH_OP_ASIN ),
+ JS_CFUNC_MAGIC_DEF("atan", 1, js_bigfloat_fop, MATH_OP_ATAN ),
+ JS_CFUNC_MAGIC_DEF("atan2", 2, js_bigfloat_fop2, MATH_OP_ATAN2 ),
+ JS_CFUNC_MAGIC_DEF("cos", 1, js_bigfloat_fop, MATH_OP_COS ),
+ JS_CFUNC_MAGIC_DEF("exp", 1, js_bigfloat_fop, MATH_OP_EXP ),
+ JS_CFUNC_MAGIC_DEF("log", 1, js_bigfloat_fop, MATH_OP_LOG ),
+ JS_CFUNC_MAGIC_DEF("pow", 2, js_bigfloat_fop2, MATH_OP_POW ),
+ JS_CFUNC_MAGIC_DEF("sin", 1, js_bigfloat_fop, MATH_OP_SIN ),
+ JS_CFUNC_MAGIC_DEF("tan", 1, js_bigfloat_fop, MATH_OP_TAN ),
+ JS_CFUNC_MAGIC_DEF("sign", 1, js_bigfloat_fop, MATH_OP_SIGN ),
+ JS_CFUNC_MAGIC_DEF("add", 2, js_bigfloat_fop2, MATH_OP_ADD ),
+ JS_CFUNC_MAGIC_DEF("sub", 2, js_bigfloat_fop2, MATH_OP_SUB ),
+ JS_CFUNC_MAGIC_DEF("mul", 2, js_bigfloat_fop2, MATH_OP_MUL ),
+ JS_CFUNC_MAGIC_DEF("div", 2, js_bigfloat_fop2, MATH_OP_DIV ),
+ JS_CFUNC_MAGIC_DEF("fmod", 2, js_bigfloat_fop2, MATH_OP_FMOD ),
+ JS_CFUNC_MAGIC_DEF("remainder", 2, js_bigfloat_fop2, MATH_OP_REM ),
+};
+
+/* FloatEnv */
+
+static JSValue js_float_env_constructor(JSContext *ctx,
+ JSValueConst new_target,
+ int argc, JSValueConst *argv)
+{
+ JSValue obj;
+ JSFloatEnv *fe;
+ int64_t prec;
+ int flags, rndmode;
+
+ prec = ctx->fp_env.prec;
+ flags = ctx->fp_env.flags;
+ if (!JS_IsUndefined(argv[0])) {
+ if (JS_ToInt64Sat(ctx, &prec, argv[0]))
+ return JS_EXCEPTION;
+ if (prec < BF_PREC_MIN || prec > BF_PREC_MAX)
+ return JS_ThrowRangeError(ctx, "invalid precision");
+ flags = BF_RNDN; /* RNDN, max exponent size, no subnormal */
+ if (argc > 1 && !JS_IsUndefined(argv[1])) {
+ if (JS_ToInt32Sat(ctx, &rndmode, argv[1]))
+ return JS_EXCEPTION;
+ if (rndmode < BF_RNDN || rndmode > BF_RNDF)
+ return JS_ThrowRangeError(ctx, "invalid rounding mode");
+ flags = rndmode;
+ }
+ }
+
+ obj = JS_NewObjectClass(ctx, JS_CLASS_FLOAT_ENV);
+ if (JS_IsException(obj))
+ return JS_EXCEPTION;
+ fe = js_malloc(ctx, sizeof(*fe));
+ if (!fe)
+ return JS_EXCEPTION;
+ fe->prec = prec;
+ fe->flags = flags;
+ fe->status = 0;
+ JS_SetOpaque(obj, fe);
+ return obj;
+}
+
+static void js_float_env_finalizer(JSRuntime *rt, JSValue val)
+{
+ JSFloatEnv *fe = JS_GetOpaque(val, JS_CLASS_FLOAT_ENV);
+ js_free_rt(rt, fe);
+}
+
+static JSValue js_float_env_get_prec(JSContext *ctx, JSValueConst this_val)
+{
+ return JS_NewInt64(ctx, ctx->fp_env.prec);
+}
+
+static JSValue js_float_env_get_expBits(JSContext *ctx, JSValueConst this_val)
+{
+ return JS_NewInt32(ctx, bf_get_exp_bits(ctx->fp_env.flags));
+}
+
+static JSValue js_float_env_setPrec(JSContext *ctx,
+ JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValueConst func;
+ int exp_bits, flags, saved_flags;
+ JSValue ret;
+ limb_t saved_prec;
+ int64_t prec;
+
+ func = argv[0];
+ if (JS_ToInt64Sat(ctx, &prec, argv[1]))
+ return JS_EXCEPTION;
+ if (prec < BF_PREC_MIN || prec > BF_PREC_MAX)
+ return JS_ThrowRangeError(ctx, "invalid precision");
+ exp_bits = BF_EXP_BITS_MAX;
+
+ if (argc > 2 && !JS_IsUndefined(argv[2])) {
+ if (JS_ToInt32Sat(ctx, &exp_bits, argv[2]))
+ return JS_EXCEPTION;
+ if (exp_bits < BF_EXP_BITS_MIN || exp_bits > BF_EXP_BITS_MAX)
+ return JS_ThrowRangeError(ctx, "invalid number of exponent bits");
+ }
+
+ flags = BF_RNDN | BF_FLAG_SUBNORMAL | bf_set_exp_bits(exp_bits);
+
+ saved_prec = ctx->fp_env.prec;
+ saved_flags = ctx->fp_env.flags;
+
+ ctx->fp_env.prec = prec;
+ ctx->fp_env.flags = flags;
+
+ ret = JS_Call(ctx, func, JS_UNDEFINED, 0, NULL);
+ /* always restore the floating point precision */
+ ctx->fp_env.prec = saved_prec;
+ ctx->fp_env.flags = saved_flags;
+ return ret;
+}
+
+#define FE_PREC (-1)
+#define FE_EXP (-2)
+#define FE_RNDMODE (-3)
+#define FE_SUBNORMAL (-4)
+
+static JSValue js_float_env_proto_get_status(JSContext *ctx, JSValueConst this_val, int magic)
+{
+ JSFloatEnv *fe;
+ fe = JS_GetOpaque2(ctx, this_val, JS_CLASS_FLOAT_ENV);
+ if (!fe)
+ return JS_EXCEPTION;
+ switch(magic) {
+ case FE_PREC:
+ return JS_NewInt64(ctx, fe->prec);
+ case FE_EXP:
+ return JS_NewInt32(ctx, bf_get_exp_bits(fe->flags));
+ case FE_RNDMODE:
+ return JS_NewInt32(ctx, fe->flags & BF_RND_MASK);
+ case FE_SUBNORMAL:
+ return JS_NewBool(ctx, fe->flags & BF_FLAG_SUBNORMAL);
+ default:
+ return JS_NewBool(ctx, fe->status & magic);
+ }
+}
+
+static JSValue js_float_env_proto_set_status(JSContext *ctx, JSValueConst this_val, JSValueConst val, int magic)
+{
+ JSFloatEnv *fe;
+ int b;
+ int64_t prec;
+
+ fe = JS_GetOpaque2(ctx, this_val, JS_CLASS_FLOAT_ENV);
+ if (!fe)
+ return JS_EXCEPTION;
+ switch(magic) {
+ case FE_PREC:
+ if (JS_ToInt64Sat(ctx, &prec, val))
+ return JS_EXCEPTION;
+ if (prec < BF_PREC_MIN || prec > BF_PREC_MAX)
+ return JS_ThrowRangeError(ctx, "invalid precision");
+ fe->prec = prec;
+ break;
+ case FE_EXP:
+ if (JS_ToInt32Sat(ctx, &b, val))
+ return JS_EXCEPTION;
+ if (b < BF_EXP_BITS_MIN || b > BF_EXP_BITS_MAX)
+ return JS_ThrowRangeError(ctx, "invalid number of exponent bits");
+ fe->flags = (fe->flags & ~(BF_EXP_BITS_MASK << BF_EXP_BITS_SHIFT)) |
+ bf_set_exp_bits(b);
+ break;
+ case FE_RNDMODE:
+ b = bigfloat_get_rnd_mode(ctx, val);
+ if (b < 0)
+ return JS_EXCEPTION;
+ fe->flags = (fe->flags & ~BF_RND_MASK) | b;
+ break;
+ case FE_SUBNORMAL:
+ b = JS_ToBool(ctx, val);
+ fe->flags = (fe->flags & ~BF_FLAG_SUBNORMAL) | (b ? BF_FLAG_SUBNORMAL: 0);
+ break;
+ default:
+ b = JS_ToBool(ctx, val);
+ fe->status = (fe->status & ~magic) & ((-b) & magic);
+ break;
+ }
+ return JS_UNDEFINED;
+}
+
+static JSValue js_float_env_clearStatus(JSContext *ctx,
+ JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSFloatEnv *fe = JS_GetOpaque2(ctx, this_val, JS_CLASS_FLOAT_ENV);
+ if (!fe)
+ return JS_EXCEPTION;
+ fe->status = 0;
+ return JS_UNDEFINED;
+}
+
+static const JSCFunctionListEntry js_float_env_funcs[] = {
+ JS_CGETSET_DEF("prec", js_float_env_get_prec, NULL ),
+ JS_CGETSET_DEF("expBits", js_float_env_get_expBits, NULL ),
+ JS_CFUNC_DEF("setPrec", 2, js_float_env_setPrec ),
+ JS_PROP_INT32_DEF("RNDN", BF_RNDN, 0 ),
+ JS_PROP_INT32_DEF("RNDZ", BF_RNDZ, 0 ),
+ JS_PROP_INT32_DEF("RNDU", BF_RNDU, 0 ),
+ JS_PROP_INT32_DEF("RNDD", BF_RNDD, 0 ),
+ JS_PROP_INT32_DEF("RNDNA", BF_RNDNA, 0 ),
+ JS_PROP_INT32_DEF("RNDA", BF_RNDA, 0 ),
+ JS_PROP_INT32_DEF("RNDF", BF_RNDF, 0 ),
+ JS_PROP_INT32_DEF("precMin", BF_PREC_MIN, 0 ),
+ JS_PROP_INT64_DEF("precMax", BF_PREC_MAX, 0 ),
+ JS_PROP_INT32_DEF("expBitsMin", BF_EXP_BITS_MIN, 0 ),
+ JS_PROP_INT32_DEF("expBitsMax", BF_EXP_BITS_MAX, 0 ),
+};
+
+static const JSCFunctionListEntry js_float_env_proto_funcs[] = {
+ JS_CGETSET_MAGIC_DEF("prec", js_float_env_proto_get_status,
+ js_float_env_proto_set_status, FE_PREC ),
+ JS_CGETSET_MAGIC_DEF("expBits", js_float_env_proto_get_status,
+ js_float_env_proto_set_status, FE_EXP ),
+ JS_CGETSET_MAGIC_DEF("rndMode", js_float_env_proto_get_status,
+ js_float_env_proto_set_status, FE_RNDMODE ),
+ JS_CGETSET_MAGIC_DEF("subnormal", js_float_env_proto_get_status,
+ js_float_env_proto_set_status, FE_SUBNORMAL ),
+ JS_CGETSET_MAGIC_DEF("invalidOperation", js_float_env_proto_get_status,
+ js_float_env_proto_set_status, BF_ST_INVALID_OP ),
+ JS_CGETSET_MAGIC_DEF("divideByZero", js_float_env_proto_get_status,
+ js_float_env_proto_set_status, BF_ST_DIVIDE_ZERO ),
+ JS_CGETSET_MAGIC_DEF("overflow", js_float_env_proto_get_status,
+ js_float_env_proto_set_status, BF_ST_OVERFLOW ),
+ JS_CGETSET_MAGIC_DEF("underflow", js_float_env_proto_get_status,
+ js_float_env_proto_set_status, BF_ST_UNDERFLOW ),
+ JS_CGETSET_MAGIC_DEF("inexact", js_float_env_proto_get_status,
+ js_float_env_proto_set_status, BF_ST_INEXACT ),
+ JS_CFUNC_DEF("clearStatus", 0, js_float_env_clearStatus ),
+};
+
+void JS_AddIntrinsicBigFloat(JSContext *ctx)
+{
+ JSRuntime *rt = ctx->rt;
+ JSValueConst obj1;
+
+ rt->bigfloat_ops.to_string = js_bigfloat_to_string;
+ rt->bigfloat_ops.from_string = js_string_to_bigfloat;
+ rt->bigfloat_ops.unary_arith = js_unary_arith_bigfloat;
+ rt->bigfloat_ops.binary_arith = js_binary_arith_bigfloat;
+ rt->bigfloat_ops.compare = js_compare_bigfloat;
+ rt->bigfloat_ops.mul_pow10_to_float64 = js_mul_pow10_to_float64;
+ rt->bigfloat_ops.mul_pow10 = js_mul_pow10;
+
+ ctx->class_proto[JS_CLASS_BIG_FLOAT] = JS_NewObject(ctx);
+ JS_SetPropertyFunctionList(ctx, ctx->class_proto[JS_CLASS_BIG_FLOAT],
+ js_bigfloat_proto_funcs,
+ countof(js_bigfloat_proto_funcs));
+ obj1 = JS_NewGlobalCConstructor(ctx, "BigFloat", js_bigfloat_constructor, 1,
+ ctx->class_proto[JS_CLASS_BIG_FLOAT]);
+ JS_SetPropertyFunctionList(ctx, obj1, js_bigfloat_funcs,
+ countof(js_bigfloat_funcs));
+
+ ctx->class_proto[JS_CLASS_FLOAT_ENV] = JS_NewObject(ctx);
+ JS_SetPropertyFunctionList(ctx, ctx->class_proto[JS_CLASS_FLOAT_ENV],
+ js_float_env_proto_funcs,
+ countof(js_float_env_proto_funcs));
+ obj1 = JS_NewGlobalCConstructorOnly(ctx, "BigFloatEnv",
+ js_float_env_constructor, 1,
+ ctx->class_proto[JS_CLASS_FLOAT_ENV]);
+ JS_SetPropertyFunctionList(ctx, obj1, js_float_env_funcs,
+ countof(js_float_env_funcs));
+}
+
+/* BigDecimal */
+
+static JSValue JS_ToBigDecimalFree(JSContext *ctx, JSValue val,
+ BOOL allow_null_or_undefined)
+{
+ redo:
+ switch(JS_VALUE_GET_NORM_TAG(val)) {
+ case JS_TAG_BIG_DECIMAL:
+ break;
+ case JS_TAG_NULL:
+ if (!allow_null_or_undefined)
+ goto fail;
+ /* fall thru */
+ case JS_TAG_BOOL:
+ case JS_TAG_INT:
+ {
+ bfdec_t *r;
+ int32_t v = JS_VALUE_GET_INT(val);
+
+ val = JS_NewBigDecimal(ctx);
+ if (JS_IsException(val))
+ break;
+ r = JS_GetBigDecimal(val);
+ if (bfdec_set_si(r, v)) {
+ JS_FreeValue(ctx, val);
+ val = JS_EXCEPTION;
+ break;
+ }
+ }
+ break;
+ case JS_TAG_FLOAT64:
+ case JS_TAG_BIG_INT:
+ case JS_TAG_BIG_FLOAT:
+ val = JS_ToStringFree(ctx, val);
+ if (JS_IsException(val))
+ break;
+ goto redo;
+ case JS_TAG_STRING:
+ {
+ const char *str, *p;
+ size_t len;
+ int err;
+
+ str = JS_ToCStringLen(ctx, &len, val);
+ JS_FreeValue(ctx, val);
+ if (!str)
+ return JS_EXCEPTION;
+ p = str;
+ p += skip_spaces(p);
+ if ((p - str) == len) {
+ bfdec_t *r;
+ val = JS_NewBigDecimal(ctx);
+ if (JS_IsException(val))
+ break;
+ r = JS_GetBigDecimal(val);
+ bfdec_set_zero(r, 0);
+ err = 0;
+ } else {
+ val = js_atof(ctx, p, &p, 0, ATOD_TYPE_BIG_DECIMAL);
+ if (JS_IsException(val)) {
+ JS_FreeCString(ctx, str);
+ return JS_EXCEPTION;
+ }
+ p += skip_spaces(p);
+ err = ((p - str) != len);
+ }
+ JS_FreeCString(ctx, str);
+ if (err) {
+ JS_FreeValue(ctx, val);
+ return JS_ThrowSyntaxError(ctx, "invalid bigdecimal literal");
+ }
+ }
+ break;
+ case JS_TAG_OBJECT:
+ val = JS_ToPrimitiveFree(ctx, val, HINT_NUMBER);
+ if (JS_IsException(val))
+ break;
+ goto redo;
+ case JS_TAG_UNDEFINED:
+ {
+ bfdec_t *r;
+ if (!allow_null_or_undefined)
+ goto fail;
+ val = JS_NewBigDecimal(ctx);
+ if (JS_IsException(val))
+ break;
+ r = JS_GetBigDecimal(val);
+ bfdec_set_nan(r);
+ }
+ break;
+ default:
+ fail:
+ JS_FreeValue(ctx, val);
+ return JS_ThrowTypeError(ctx, "cannot convert to bigdecimal");
+ }
+ return val;
+}
+
+static JSValue js_bigdecimal_constructor(JSContext *ctx,
+ JSValueConst new_target,
+ int argc, JSValueConst *argv)
+{
+ JSValue val;
+ if (!JS_IsUndefined(new_target))
+ return JS_ThrowTypeError(ctx, "not a constructor");
+ if (argc == 0) {
+ bfdec_t *r;
+ val = JS_NewBigDecimal(ctx);
+ if (JS_IsException(val))
+ return val;
+ r = JS_GetBigDecimal(val);
+ bfdec_set_zero(r, 0);
+ } else {
+ val = JS_ToBigDecimalFree(ctx, JS_DupValue(ctx, argv[0]), FALSE);
+ }
+ return val;
+}
+
+static JSValue js_thisBigDecimalValue(JSContext *ctx, JSValueConst this_val)
+{
+ if (JS_IsBigDecimal(this_val))
+ return JS_DupValue(ctx, this_val);
+
+ if (JS_VALUE_GET_TAG(this_val) == JS_TAG_OBJECT) {
+ JSObject *p = JS_VALUE_GET_OBJ(this_val);
+ if (p->class_id == JS_CLASS_BIG_DECIMAL) {
+ if (JS_IsBigDecimal(p->u.object_data))
+ return JS_DupValue(ctx, p->u.object_data);
+ }
+ }
+ return JS_ThrowTypeError(ctx, "not a bigdecimal");
+}
+
+static JSValue js_bigdecimal_toString(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValue val;
+
+ val = js_thisBigDecimalValue(ctx, this_val);
+ if (JS_IsException(val))
+ return val;
+ return JS_ToStringFree(ctx, val);
+}
+
+static JSValue js_bigdecimal_valueOf(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ return js_thisBigDecimalValue(ctx, this_val);
+}
+
+static int js_bigdecimal_get_rnd_mode(JSContext *ctx, JSValueConst obj)
+{
+ const char *str;
+ size_t size;
+ int rnd_mode;
+
+ str = JS_ToCStringLen(ctx, &size, obj);
+ if (!str)
+ return -1;
+ if (strlen(str) != size)
+ goto invalid_rounding_mode;
+ if (!strcmp(str, "floor")) {
+ rnd_mode = BF_RNDD;
+ } else if (!strcmp(str, "ceiling")) {
+ rnd_mode = BF_RNDU;
+ } else if (!strcmp(str, "down")) {
+ rnd_mode = BF_RNDZ;
+ } else if (!strcmp(str, "up")) {
+ rnd_mode = BF_RNDA;
+ } else if (!strcmp(str, "half-even")) {
+ rnd_mode = BF_RNDN;
+ } else if (!strcmp(str, "half-up")) {
+ rnd_mode = BF_RNDNA;
+ } else {
+ invalid_rounding_mode:
+ JS_FreeCString(ctx, str);
+ JS_ThrowTypeError(ctx, "invalid rounding mode");
+ return -1;
+ }
+ JS_FreeCString(ctx, str);
+ return rnd_mode;
+}
+
+typedef struct {
+ int64_t prec;
+ bf_flags_t flags;
+} BigDecimalEnv;
+
+static int js_bigdecimal_get_env(JSContext *ctx, BigDecimalEnv *fe,
+ JSValueConst obj)
+{
+ JSValue prop;
+ int64_t val;
+ BOOL has_prec;
+ int rnd_mode;
+
+ if (!JS_IsObject(obj)) {
+ JS_ThrowTypeErrorNotAnObject(ctx);
+ return -1;
+ }
+ prop = JS_GetProperty(ctx, obj, JS_ATOM_roundingMode);
+ if (JS_IsException(prop))
+ return -1;
+ rnd_mode = js_bigdecimal_get_rnd_mode(ctx, prop);
+ JS_FreeValue(ctx, prop);
+ if (rnd_mode < 0)
+ return -1;
+ fe->flags = rnd_mode;
+
+ prop = JS_GetProperty(ctx, obj, JS_ATOM_maximumSignificantDigits);
+ if (JS_IsException(prop))
+ return -1;
+ has_prec = FALSE;
+ if (!JS_IsUndefined(prop)) {
+ if (JS_ToInt64SatFree(ctx, &val, prop))
+ return -1;
+ if (val < 1 || val > BF_PREC_MAX)
+ goto invalid_precision;
+ fe->prec = val;
+ has_prec = TRUE;
+ }
+
+ prop = JS_GetProperty(ctx, obj, JS_ATOM_maximumFractionDigits);
+ if (JS_IsException(prop))
+ return -1;
+ if (!JS_IsUndefined(prop)) {
+ if (has_prec) {
+ JS_FreeValue(ctx, prop);
+ JS_ThrowTypeError(ctx, "cannot provide both maximumSignificantDigits and maximumFractionDigits");
+ return -1;
+ }
+ if (JS_ToInt64SatFree(ctx, &val, prop))
+ return -1;
+ if (val < 0 || val > BF_PREC_MAX) {
+ invalid_precision:
+ JS_ThrowTypeError(ctx, "invalid precision");
+ return -1;
+ }
+ fe->prec = val;
+ fe->flags |= BF_FLAG_RADPNT_PREC;
+ has_prec = TRUE;
+ }
+ if (!has_prec) {
+ JS_ThrowTypeError(ctx, "precision must be present");
+ return -1;
+ }
+ return 0;
+}
+
+
+static JSValue js_bigdecimal_fop(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int magic)
+{
+ bfdec_t *a, *b, r_s, *r = &r_s;
+ JSValue op1, op2, res;
+ BigDecimalEnv fe_s, *fe = &fe_s;
+ int op_count, ret;
+
+ if (magic == MATH_OP_SQRT ||
+ magic == MATH_OP_ROUND)
+ op_count = 1;
+ else
+ op_count = 2;
+
+ op1 = JS_ToNumeric(ctx, argv[0]);
+ if (JS_IsException(op1))
+ return op1;
+ a = JS_ToBigDecimal(ctx, op1);
+ if (!a) {
+ JS_FreeValue(ctx, op1);
+ return JS_EXCEPTION;
+ }
+ if (op_count >= 2) {
+ op2 = JS_ToNumeric(ctx, argv[1]);
+ if (JS_IsException(op2)) {
+ JS_FreeValue(ctx, op1);
+ return op2;
+ }
+ b = JS_ToBigDecimal(ctx, op2);
+ if (!b)
+ goto fail;
+ } else {
+ op2 = JS_UNDEFINED;
+ b = NULL;
+ }
+ fe->flags = BF_RNDZ;
+ fe->prec = BF_PREC_INF;
+ if (op_count < argc) {
+ if (js_bigdecimal_get_env(ctx, fe, argv[op_count]))
+ goto fail;
+ }
+
+ res = JS_NewBigDecimal(ctx);
+ if (JS_IsException(res)) {
+ fail:
+ JS_FreeValue(ctx, op1);
+ JS_FreeValue(ctx, op2);
+ return JS_EXCEPTION;
+ }
+ r = JS_GetBigDecimal(res);
+ switch (magic) {
+ case MATH_OP_ADD:
+ ret = bfdec_add(r, a, b, fe->prec, fe->flags);
+ break;
+ case MATH_OP_SUB:
+ ret = bfdec_sub(r, a, b, fe->prec, fe->flags);
+ break;
+ case MATH_OP_MUL:
+ ret = bfdec_mul(r, a, b, fe->prec, fe->flags);
+ break;
+ case MATH_OP_DIV:
+ ret = bfdec_div(r, a, b, fe->prec, fe->flags);
+ break;
+ case MATH_OP_FMOD:
+ ret = bfdec_rem(r, a, b, fe->prec, fe->flags, BF_RNDZ);
+ break;
+ case MATH_OP_SQRT:
+ ret = bfdec_sqrt(r, a, fe->prec, fe->flags);
+ break;
+ case MATH_OP_ROUND:
+ ret = bfdec_set(r, a);
+ if (!(ret & BF_ST_MEM_ERROR))
+ ret = bfdec_round(r, fe->prec, fe->flags);
+ break;
+ default:
+ abort();
+ }
+ JS_FreeValue(ctx, op1);
+ JS_FreeValue(ctx, op2);
+ ret &= BF_ST_MEM_ERROR | BF_ST_DIVIDE_ZERO | BF_ST_INVALID_OP |
+ BF_ST_OVERFLOW;
+ if (ret != 0) {
+ JS_FreeValue(ctx, res);
+ return throw_bf_exception(ctx, ret);
+ } else {
+ return res;
+ }
+}
+
+static JSValue js_bigdecimal_toFixed(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValue val, ret;
+ int64_t f;
+ int rnd_mode;
+
+ val = js_thisBigDecimalValue(ctx, this_val);
+ if (JS_IsException(val))
+ return val;
+ if (JS_ToInt64Sat(ctx, &f, argv[0]))
+ goto fail;
+ if (f < 0 || f > BF_PREC_MAX) {
+ JS_ThrowRangeError(ctx, "invalid number of digits");
+ goto fail;
+ }
+ rnd_mode = BF_RNDNA;
+ if (argc > 1) {
+ rnd_mode = js_bigdecimal_get_rnd_mode(ctx, argv[1]);
+ if (rnd_mode < 0)
+ goto fail;
+ }
+ ret = js_bigdecimal_to_string1(ctx, val, f, rnd_mode | BF_FTOA_FORMAT_FRAC);
+ JS_FreeValue(ctx, val);
+ return ret;
+ fail:
+ JS_FreeValue(ctx, val);
+ return JS_EXCEPTION;
+}
+
+static JSValue js_bigdecimal_toExponential(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValue val, ret;
+ int64_t f;
+ int rnd_mode;
+
+ val = js_thisBigDecimalValue(ctx, this_val);
+ if (JS_IsException(val))
+ return val;
+ if (JS_ToInt64Sat(ctx, &f, argv[0]))
+ goto fail;
+ if (JS_IsUndefined(argv[0])) {
+ ret = js_bigdecimal_to_string1(ctx, val, 0,
+ BF_RNDN | BF_FTOA_FORMAT_FREE_MIN | BF_FTOA_FORCE_EXP);
+ } else {
+ if (f < 0 || f > BF_PREC_MAX) {
+ JS_ThrowRangeError(ctx, "invalid number of digits");
+ goto fail;
+ }
+ rnd_mode = BF_RNDNA;
+ if (argc > 1) {
+ rnd_mode = js_bigdecimal_get_rnd_mode(ctx, argv[1]);
+ if (rnd_mode < 0)
+ goto fail;
+ }
+ ret = js_bigdecimal_to_string1(ctx, val, f + 1,
+ rnd_mode | BF_FTOA_FORMAT_FIXED | BF_FTOA_FORCE_EXP);
+ }
+ JS_FreeValue(ctx, val);
+ return ret;
+ fail:
+ JS_FreeValue(ctx, val);
+ return JS_EXCEPTION;
+}
+
+static JSValue js_bigdecimal_toPrecision(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValue val, ret;
+ int64_t p;
+ int rnd_mode;
+
+ val = js_thisBigDecimalValue(ctx, this_val);
+ if (JS_IsException(val))
+ return val;
+ if (JS_IsUndefined(argv[0])) {
+ return JS_ToStringFree(ctx, val);
+ }
+ if (JS_ToInt64Sat(ctx, &p, argv[0]))
+ goto fail;
+ if (p < 1 || p > BF_PREC_MAX) {
+ JS_ThrowRangeError(ctx, "invalid number of digits");
+ goto fail;
+ }
+ rnd_mode = BF_RNDNA;
+ if (argc > 1) {
+ rnd_mode = js_bigdecimal_get_rnd_mode(ctx, argv[1]);
+ if (rnd_mode < 0)
+ goto fail;
+ }
+ ret = js_bigdecimal_to_string1(ctx, val, p,
+ rnd_mode | BF_FTOA_FORMAT_FIXED);
+ JS_FreeValue(ctx, val);
+ return ret;
+ fail:
+ JS_FreeValue(ctx, val);
+ return JS_EXCEPTION;
+}
+
+static const JSCFunctionListEntry js_bigdecimal_proto_funcs[] = {
+ JS_CFUNC_DEF("toString", 0, js_bigdecimal_toString ),
+ JS_CFUNC_DEF("valueOf", 0, js_bigdecimal_valueOf ),
+ JS_CFUNC_DEF("toPrecision", 1, js_bigdecimal_toPrecision ),
+ JS_CFUNC_DEF("toFixed", 1, js_bigdecimal_toFixed ),
+ JS_CFUNC_DEF("toExponential", 1, js_bigdecimal_toExponential ),
+};
+
+static const JSCFunctionListEntry js_bigdecimal_funcs[] = {
+ JS_CFUNC_MAGIC_DEF("add", 2, js_bigdecimal_fop, MATH_OP_ADD ),
+ JS_CFUNC_MAGIC_DEF("sub", 2, js_bigdecimal_fop, MATH_OP_SUB ),
+ JS_CFUNC_MAGIC_DEF("mul", 2, js_bigdecimal_fop, MATH_OP_MUL ),
+ JS_CFUNC_MAGIC_DEF("div", 2, js_bigdecimal_fop, MATH_OP_DIV ),
+ JS_CFUNC_MAGIC_DEF("mod", 2, js_bigdecimal_fop, MATH_OP_FMOD ),
+ JS_CFUNC_MAGIC_DEF("round", 1, js_bigdecimal_fop, MATH_OP_ROUND ),
+ JS_CFUNC_MAGIC_DEF("sqrt", 1, js_bigdecimal_fop, MATH_OP_SQRT ),
+};
+
+void JS_AddIntrinsicBigDecimal(JSContext *ctx)
+{
+ JSRuntime *rt = ctx->rt;
+ JSValueConst obj1;
+
+ rt->bigdecimal_ops.to_string = js_bigdecimal_to_string;
+ rt->bigdecimal_ops.from_string = js_string_to_bigdecimal;
+ rt->bigdecimal_ops.unary_arith = js_unary_arith_bigdecimal;
+ rt->bigdecimal_ops.binary_arith = js_binary_arith_bigdecimal;
+ rt->bigdecimal_ops.compare = js_compare_bigdecimal;
+
+ ctx->class_proto[JS_CLASS_BIG_DECIMAL] = JS_NewObject(ctx);
+ JS_SetPropertyFunctionList(ctx, ctx->class_proto[JS_CLASS_BIG_DECIMAL],
+ js_bigdecimal_proto_funcs,
+ countof(js_bigdecimal_proto_funcs));
+ obj1 = JS_NewGlobalCConstructor(ctx, "BigDecimal",
+ js_bigdecimal_constructor, 1,
+ ctx->class_proto[JS_CLASS_BIG_DECIMAL]);
+ JS_SetPropertyFunctionList(ctx, obj1, js_bigdecimal_funcs,
+ countof(js_bigdecimal_funcs));
+}
+
+void JS_EnableBignumExt(JSContext *ctx, BOOL enable)
+{
+ ctx->bignum_ext = enable;
+}
+
+#endif /* CONFIG_BIGNUM */
+
+static const char * const native_error_name[JS_NATIVE_ERROR_COUNT] = {
+ "EvalError", "RangeError", "ReferenceError",
+ "SyntaxError", "TypeError", "URIError",
+ "InternalError", "AggregateError",
+};
+
+/* Minimum amount of objects to be able to compile code and display
+ error messages. No JSAtom should be allocated by this function. */
+static void JS_AddIntrinsicBasicObjects(JSContext *ctx)
+{
+ JSValue proto;
+ int i;
+
+ ctx->class_proto[JS_CLASS_OBJECT] = JS_NewObjectProto(ctx, JS_NULL);
+ ctx->function_proto = JS_NewCFunction3(ctx, js_function_proto, "", 0,
+ JS_CFUNC_generic, 0,
+ ctx->class_proto[JS_CLASS_OBJECT]);
+ ctx->class_proto[JS_CLASS_BYTECODE_FUNCTION] = JS_DupValue(ctx, ctx->function_proto);
+ ctx->class_proto[JS_CLASS_ERROR] = JS_NewObject(ctx);
+#if 0
+ /* these are auto-initialized from js_error_proto_funcs,
+ but delaying might be a problem */
+ JS_DefinePropertyValue(ctx, ctx->class_proto[JS_CLASS_ERROR], JS_ATOM_name,
+ JS_AtomToString(ctx, JS_ATOM_Error),
+ JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE);
+ JS_DefinePropertyValue(ctx, ctx->class_proto[JS_CLASS_ERROR], JS_ATOM_message,
+ JS_AtomToString(ctx, JS_ATOM_empty_string),
+ JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE);
+#endif
+ JS_SetPropertyFunctionList(ctx, ctx->class_proto[JS_CLASS_ERROR],
+ js_error_proto_funcs,
+ countof(js_error_proto_funcs));
+
+ for(i = 0; i < JS_NATIVE_ERROR_COUNT; i++) {
+ proto = JS_NewObjectProto(ctx, ctx->class_proto[JS_CLASS_ERROR]);
+ JS_DefinePropertyValue(ctx, proto, JS_ATOM_name,
+ JS_NewAtomString(ctx, native_error_name[i]),
+ JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE);
+ JS_DefinePropertyValue(ctx, proto, JS_ATOM_message,
+ JS_AtomToString(ctx, JS_ATOM_empty_string),
+ JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE);
+ ctx->native_error_proto[i] = proto;
+ }
+
+ /* the array prototype is an array */
+ ctx->class_proto[JS_CLASS_ARRAY] =
+ JS_NewObjectProtoClass(ctx, ctx->class_proto[JS_CLASS_OBJECT],
+ JS_CLASS_ARRAY);
+
+ ctx->array_shape = js_new_shape2(ctx, get_proto_obj(ctx->class_proto[JS_CLASS_ARRAY]),
+ JS_PROP_INITIAL_HASH_SIZE, 1);
+ add_shape_property(ctx, &ctx->array_shape, NULL,
+ JS_ATOM_length, JS_PROP_WRITABLE | JS_PROP_LENGTH);
+
+ /* XXX: could test it on first context creation to ensure that no
+ new atoms are created in JS_AddIntrinsicBasicObjects(). It is
+ necessary to avoid useless renumbering of atoms after
+ JS_EvalBinary() if it is done just after
+ JS_AddIntrinsicBasicObjects(). */
+ // assert(ctx->rt->atom_count == JS_ATOM_END);
+}
+
+void JS_AddIntrinsicBaseObjects(JSContext *ctx)
+{
+ int i;
+ JSValueConst obj, number_obj;
+ JSValue obj1;
+
+ ctx->throw_type_error = JS_NewCFunction(ctx, js_throw_type_error, NULL, 0);
+
+ /* add caller and arguments properties to throw a TypeError */
+ obj1 = JS_NewCFunction(ctx, js_function_proto_caller, NULL, 0);
+ JS_DefineProperty(ctx, ctx->function_proto, JS_ATOM_caller, JS_UNDEFINED,
+ obj1, ctx->throw_type_error,
+ JS_PROP_HAS_GET | JS_PROP_HAS_SET |
+ JS_PROP_HAS_CONFIGURABLE | JS_PROP_CONFIGURABLE);
+ JS_DefineProperty(ctx, ctx->function_proto, JS_ATOM_arguments, JS_UNDEFINED,
+ obj1, ctx->throw_type_error,
+ JS_PROP_HAS_GET | JS_PROP_HAS_SET |
+ JS_PROP_HAS_CONFIGURABLE | JS_PROP_CONFIGURABLE);
+ JS_FreeValue(ctx, obj1);
+ JS_FreeValue(ctx, js_object_seal(ctx, JS_UNDEFINED, 1, (JSValueConst *)&ctx->throw_type_error, 1));
+
+ ctx->global_obj = JS_NewObject(ctx);
+ ctx->global_var_obj = JS_NewObjectProto(ctx, JS_NULL);
+
+ /* Object */
+ obj = JS_NewGlobalCConstructor(ctx, "Object", js_object_constructor, 1,
+ ctx->class_proto[JS_CLASS_OBJECT]);
+ JS_SetPropertyFunctionList(ctx, obj, js_object_funcs, countof(js_object_funcs));
+ JS_SetPropertyFunctionList(ctx, ctx->class_proto[JS_CLASS_OBJECT],
+ js_object_proto_funcs, countof(js_object_proto_funcs));
+
+ /* Function */
+ JS_SetPropertyFunctionList(ctx, ctx->function_proto, js_function_proto_funcs, countof(js_function_proto_funcs));
+ ctx->function_ctor = JS_NewCFunctionMagic(ctx, js_function_constructor,
+ "Function", 1, JS_CFUNC_constructor_or_func_magic,
+ JS_FUNC_NORMAL);
+ JS_NewGlobalCConstructor2(ctx, JS_DupValue(ctx, ctx->function_ctor), "Function",
+ ctx->function_proto);
+
+ /* Error */
+ obj1 = JS_NewCFunctionMagic(ctx, js_error_constructor,
+ "Error", 1, JS_CFUNC_constructor_or_func_magic, -1);
+ JS_NewGlobalCConstructor2(ctx, obj1,
+ "Error", ctx->class_proto[JS_CLASS_ERROR]);
+
+ /* Used to squelch a -Wcast-function-type warning. */
+ JSCFunctionType ft = { .generic_magic = js_error_constructor };
+ for(i = 0; i < JS_NATIVE_ERROR_COUNT; i++) {
+ JSValue func_obj;
+ int n_args;
+ n_args = 1 + (i == JS_AGGREGATE_ERROR);
+ func_obj = JS_NewCFunction3(ctx, ft.generic,
+ native_error_name[i], n_args,
+ JS_CFUNC_constructor_or_func_magic, i, obj1);
+ JS_NewGlobalCConstructor2(ctx, func_obj, native_error_name[i],
+ ctx->native_error_proto[i]);
+ }
+
+ /* Iterator prototype */
+ ctx->iterator_proto = JS_NewObject(ctx);
+ JS_SetPropertyFunctionList(ctx, ctx->iterator_proto,
+ js_iterator_proto_funcs,
+ countof(js_iterator_proto_funcs));
+
+ /* Array */
+ JS_SetPropertyFunctionList(ctx, ctx->class_proto[JS_CLASS_ARRAY],
+ js_array_proto_funcs,
+ countof(js_array_proto_funcs));
+
+ obj = JS_NewGlobalCConstructor(ctx, "Array", js_array_constructor, 1,
+ ctx->class_proto[JS_CLASS_ARRAY]);
+ ctx->array_ctor = JS_DupValue(ctx, obj);
+ JS_SetPropertyFunctionList(ctx, obj, js_array_funcs,
+ countof(js_array_funcs));
+
+ /* XXX: create auto_initializer */
+ {
+ /* initialize Array.prototype[Symbol.unscopables] */
+ static const char unscopables[] =
+ "copyWithin" "\0"
+ "entries" "\0"
+ "fill" "\0"
+ "find" "\0"
+ "findIndex" "\0"
+ "findLast" "\0"
+ "findLastIndex" "\0"
+ "flat" "\0"
+ "flatMap" "\0"
+ "includes" "\0"
+ "keys" "\0"
+ "toReversed" "\0"
+ "toSorted" "\0"
+ "toSpliced" "\0"
+ "values" "\0";
+ const char *p = unscopables;
+ obj1 = JS_NewObjectProto(ctx, JS_NULL);
+ for(p = unscopables; *p; p += strlen(p) + 1) {
+ JS_DefinePropertyValueStr(ctx, obj1, p, JS_TRUE, JS_PROP_C_W_E);
+ }
+ JS_DefinePropertyValue(ctx, ctx->class_proto[JS_CLASS_ARRAY],
+ JS_ATOM_Symbol_unscopables, obj1,
+ JS_PROP_CONFIGURABLE);
+ }
+
+ /* needed to initialize arguments[Symbol.iterator] */
+ ctx->array_proto_values =
+ JS_GetProperty(ctx, ctx->class_proto[JS_CLASS_ARRAY], JS_ATOM_values);
+
+ ctx->class_proto[JS_CLASS_ARRAY_ITERATOR] = JS_NewObjectProto(ctx, ctx->iterator_proto);
+ JS_SetPropertyFunctionList(ctx, ctx->class_proto[JS_CLASS_ARRAY_ITERATOR],
+ js_array_iterator_proto_funcs,
+ countof(js_array_iterator_proto_funcs));
+
+ /* parseFloat and parseInteger must be defined before Number
+ because of the Number.parseFloat and Number.parseInteger
+ aliases */
+ JS_SetPropertyFunctionList(ctx, ctx->global_obj, js_global_funcs,
+ countof(js_global_funcs));
+
+ /* Number */
+ ctx->class_proto[JS_CLASS_NUMBER] = JS_NewObjectProtoClass(ctx, ctx->class_proto[JS_CLASS_OBJECT],
+ JS_CLASS_NUMBER);
+ JS_SetObjectData(ctx, ctx->class_proto[JS_CLASS_NUMBER], JS_NewInt32(ctx, 0));
+ JS_SetPropertyFunctionList(ctx, ctx->class_proto[JS_CLASS_NUMBER],
+ js_number_proto_funcs,
+ countof(js_number_proto_funcs));
+ number_obj = JS_NewGlobalCConstructor(ctx, "Number", js_number_constructor, 1,
+ ctx->class_proto[JS_CLASS_NUMBER]);
+ JS_SetPropertyFunctionList(ctx, number_obj, js_number_funcs, countof(js_number_funcs));
+
+ /* Boolean */
+ ctx->class_proto[JS_CLASS_BOOLEAN] = JS_NewObjectProtoClass(ctx, ctx->class_proto[JS_CLASS_OBJECT],
+ JS_CLASS_BOOLEAN);
+ JS_SetObjectData(ctx, ctx->class_proto[JS_CLASS_BOOLEAN], JS_NewBool(ctx, FALSE));
+ JS_SetPropertyFunctionList(ctx, ctx->class_proto[JS_CLASS_BOOLEAN], js_boolean_proto_funcs,
+ countof(js_boolean_proto_funcs));
+ JS_NewGlobalCConstructor(ctx, "Boolean", js_boolean_constructor, 1,
+ ctx->class_proto[JS_CLASS_BOOLEAN]);
+
+ /* String */
+ ctx->class_proto[JS_CLASS_STRING] = JS_NewObjectProtoClass(ctx, ctx->class_proto[JS_CLASS_OBJECT],
+ JS_CLASS_STRING);
+ JS_SetObjectData(ctx, ctx->class_proto[JS_CLASS_STRING], JS_AtomToString(ctx, JS_ATOM_empty_string));
+ obj = JS_NewGlobalCConstructor(ctx, "String", js_string_constructor, 1,
+ ctx->class_proto[JS_CLASS_STRING]);
+ JS_SetPropertyFunctionList(ctx, obj, js_string_funcs,
+ countof(js_string_funcs));
+ JS_SetPropertyFunctionList(ctx, ctx->class_proto[JS_CLASS_STRING], js_string_proto_funcs,
+ countof(js_string_proto_funcs));
+
+ ctx->class_proto[JS_CLASS_STRING_ITERATOR] = JS_NewObjectProto(ctx, ctx->iterator_proto);
+ JS_SetPropertyFunctionList(ctx, ctx->class_proto[JS_CLASS_STRING_ITERATOR],
+ js_string_iterator_proto_funcs,
+ countof(js_string_iterator_proto_funcs));
+
+ /* Math: create as autoinit object */
+ js_random_init(ctx);
+ JS_SetPropertyFunctionList(ctx, ctx->global_obj, js_math_obj, countof(js_math_obj));
+
+ /* ES6 Reflect: create as autoinit object */
+ JS_SetPropertyFunctionList(ctx, ctx->global_obj, js_reflect_obj, countof(js_reflect_obj));
+
+ /* ES6 Symbol */
+ ctx->class_proto[JS_CLASS_SYMBOL] = JS_NewObject(ctx);
+ JS_SetPropertyFunctionList(ctx, ctx->class_proto[JS_CLASS_SYMBOL], js_symbol_proto_funcs,
+ countof(js_symbol_proto_funcs));
+ obj = JS_NewGlobalCConstructor(ctx, "Symbol", js_symbol_constructor, 0,
+ ctx->class_proto[JS_CLASS_SYMBOL]);
+ JS_SetPropertyFunctionList(ctx, obj, js_symbol_funcs,
+ countof(js_symbol_funcs));
+ for(i = JS_ATOM_Symbol_toPrimitive; i < JS_ATOM_END; i++) {
+ char buf[ATOM_GET_STR_BUF_SIZE];
+ const char *str, *p;
+ str = JS_AtomGetStr(ctx, buf, sizeof(buf), i);
+ /* skip "Symbol." */
+ p = strchr(str, '.');
+ if (p)
+ str = p + 1;
+ JS_DefinePropertyValueStr(ctx, obj, str, JS_AtomToValue(ctx, i), 0);
+ }
+
+ /* ES6 Generator */
+ ctx->class_proto[JS_CLASS_GENERATOR] = JS_NewObjectProto(ctx, ctx->iterator_proto);
+ JS_SetPropertyFunctionList(ctx, ctx->class_proto[JS_CLASS_GENERATOR],
+ js_generator_proto_funcs,
+ countof(js_generator_proto_funcs));
+
+ ctx->class_proto[JS_CLASS_GENERATOR_FUNCTION] = JS_NewObjectProto(ctx, ctx->function_proto);
+ obj1 = JS_NewCFunctionMagic(ctx, js_function_constructor,
+ "GeneratorFunction", 1,
+ JS_CFUNC_constructor_or_func_magic, JS_FUNC_GENERATOR);
+ JS_SetPropertyFunctionList(ctx,
+ ctx->class_proto[JS_CLASS_GENERATOR_FUNCTION],
+ js_generator_function_proto_funcs,
+ countof(js_generator_function_proto_funcs));
+ JS_SetConstructor2(ctx, ctx->class_proto[JS_CLASS_GENERATOR_FUNCTION],
+ ctx->class_proto[JS_CLASS_GENERATOR],
+ JS_PROP_CONFIGURABLE, JS_PROP_CONFIGURABLE);
+ JS_SetConstructor2(ctx, obj1, ctx->class_proto[JS_CLASS_GENERATOR_FUNCTION],
+ 0, JS_PROP_CONFIGURABLE);
+ JS_FreeValue(ctx, obj1);
+
+ /* global properties */
+ ctx->eval_obj = JS_NewCFunction(ctx, js_global_eval, "eval", 1);
+ JS_DefinePropertyValue(ctx, ctx->global_obj, JS_ATOM_eval,
+ JS_DupValue(ctx, ctx->eval_obj),
+ JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE);
+
+ JS_DefinePropertyValue(ctx, ctx->global_obj, JS_ATOM_globalThis,
+ JS_DupValue(ctx, ctx->global_obj),
+ JS_PROP_CONFIGURABLE | JS_PROP_WRITABLE);
+}
+
+/* Typed Arrays */
+
+static uint8_t const typed_array_size_log2[JS_TYPED_ARRAY_COUNT] = {
+ 0, 0, 0, 1, 1, 2, 2,
+ 3, 3, /* BigInt64Array, BigUint64Array */
+ 2, 3
+};
+
+static JSValue js_array_buffer_constructor3(JSContext *ctx,
+ JSValueConst new_target,
+ uint64_t len, JSClassID class_id,
+ uint8_t *buf,
+ JSFreeArrayBufferDataFunc *free_func,
+ void *opaque, BOOL alloc_flag)
+{
+ JSRuntime *rt = ctx->rt;
+ JSValue obj;
+ JSArrayBuffer *abuf = NULL;
+
+ obj = js_create_from_ctor(ctx, new_target, class_id);
+ if (JS_IsException(obj))
+ return obj;
+ /* XXX: we are currently limited to 2 GB */
+ if (len > INT32_MAX) {
+ JS_ThrowRangeError(ctx, "invalid array buffer length");
+ goto fail;
+ }
+ abuf = js_malloc(ctx, sizeof(*abuf));
+ if (!abuf)
+ goto fail;
+ abuf->byte_length = len;
+ if (alloc_flag) {
+ if (class_id == JS_CLASS_SHARED_ARRAY_BUFFER &&
+ rt->sab_funcs.sab_alloc) {
+ abuf->data = rt->sab_funcs.sab_alloc(rt->sab_funcs.sab_opaque,
+ max_int(len, 1));
+ if (!abuf->data)
+ goto fail;
+ memset(abuf->data, 0, len);
+ } else {
+ /* the allocation must be done after the object creation */
+ abuf->data = js_mallocz(ctx, max_int(len, 1));
+ if (!abuf->data)
+ goto fail;
+ }
+ } else {
+ if (class_id == JS_CLASS_SHARED_ARRAY_BUFFER &&
+ rt->sab_funcs.sab_dup) {
+ rt->sab_funcs.sab_dup(rt->sab_funcs.sab_opaque, buf);
+ }
+ abuf->data = buf;
+ }
+ init_list_head(&abuf->array_list);
+ abuf->detached = FALSE;
+ abuf->shared = (class_id == JS_CLASS_SHARED_ARRAY_BUFFER);
+ abuf->opaque = opaque;
+ abuf->free_func = free_func;
+ if (alloc_flag && buf)
+ memcpy(abuf->data, buf, len);
+ JS_SetOpaque(obj, abuf);
+ return obj;
+ fail:
+ JS_FreeValue(ctx, obj);
+ js_free(ctx, abuf);
+ return JS_EXCEPTION;
+}
+
+static void js_array_buffer_free(JSRuntime *rt, void *opaque, void *ptr)
+{
+ js_free_rt(rt, ptr);
+}
+
+static JSValue js_array_buffer_constructor2(JSContext *ctx,
+ JSValueConst new_target,
+ uint64_t len, JSClassID class_id)
+{
+ return js_array_buffer_constructor3(ctx, new_target, len, class_id,
+ NULL, js_array_buffer_free, NULL,
+ TRUE);
+}
+
+static JSValue js_array_buffer_constructor1(JSContext *ctx,
+ JSValueConst new_target,
+ uint64_t len)
+{
+ return js_array_buffer_constructor2(ctx, new_target, len,
+ JS_CLASS_ARRAY_BUFFER);
+}
+
+JSValue JS_NewArrayBuffer(JSContext *ctx, uint8_t *buf, size_t len,
+ JSFreeArrayBufferDataFunc *free_func, void *opaque,
+ BOOL is_shared)
+{
+ return js_array_buffer_constructor3(ctx, JS_UNDEFINED, len,
+ is_shared ? JS_CLASS_SHARED_ARRAY_BUFFER : JS_CLASS_ARRAY_BUFFER,
+ buf, free_func, opaque, FALSE);
+}
+
+/* create a new ArrayBuffer of length 'len' and copy 'buf' to it */
+JSValue JS_NewArrayBufferCopy(JSContext *ctx, const uint8_t *buf, size_t len)
+{
+ return js_array_buffer_constructor3(ctx, JS_UNDEFINED, len,
+ JS_CLASS_ARRAY_BUFFER,
+ (uint8_t *)buf,
+ js_array_buffer_free, NULL,
+ TRUE);
+}
+
+static JSValue js_array_buffer_constructor(JSContext *ctx,
+ JSValueConst new_target,
+ int argc, JSValueConst *argv)
+{
+ uint64_t len;
+ if (JS_ToIndex(ctx, &len, argv[0]))
+ return JS_EXCEPTION;
+ return js_array_buffer_constructor1(ctx, new_target, len);
+}
+
+static JSValue js_shared_array_buffer_constructor(JSContext *ctx,
+ JSValueConst new_target,
+ int argc, JSValueConst *argv)
+{
+ uint64_t len;
+ if (JS_ToIndex(ctx, &len, argv[0]))
+ return JS_EXCEPTION;
+ return js_array_buffer_constructor2(ctx, new_target, len,
+ JS_CLASS_SHARED_ARRAY_BUFFER);
+}
+
+/* also used for SharedArrayBuffer */
+static void js_array_buffer_finalizer(JSRuntime *rt, JSValue val)
+{
+ JSObject *p = JS_VALUE_GET_OBJ(val);
+ JSArrayBuffer *abuf = p->u.array_buffer;
+ struct list_head *el, *el1;
+
+ if (abuf) {
+ /* The ArrayBuffer finalizer may be called before the typed
+ array finalizers using it, so abuf->array_list is not
+ necessarily empty. */
+ list_for_each_safe(el, el1, &abuf->array_list) {
+ JSTypedArray *ta;
+ JSObject *p1;
+
+ ta = list_entry(el, JSTypedArray, link);
+ ta->link.prev = NULL;
+ ta->link.next = NULL;
+ p1 = ta->obj;
+ /* Note: the typed array length and offset fields are not modified */
+ if (p1->class_id != JS_CLASS_DATAVIEW) {
+ p1->u.array.count = 0;
+ p1->u.array.u.ptr = NULL;
+ }
+ }
+ if (abuf->shared && rt->sab_funcs.sab_free) {
+ rt->sab_funcs.sab_free(rt->sab_funcs.sab_opaque, abuf->data);
+ } else {
+ if (abuf->free_func)
+ abuf->free_func(rt, abuf->opaque, abuf->data);
+ }
+ js_free_rt(rt, abuf);
+ }
+}
+
+static JSValue js_array_buffer_isView(JSContext *ctx,
+ JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSObject *p;
+ BOOL res;
+ res = FALSE;
+ if (JS_VALUE_GET_TAG(argv[0]) == JS_TAG_OBJECT) {
+ p = JS_VALUE_GET_OBJ(argv[0]);
+ if (p->class_id >= JS_CLASS_UINT8C_ARRAY &&
+ p->class_id <= JS_CLASS_DATAVIEW) {
+ res = TRUE;
+ }
+ }
+ return JS_NewBool(ctx, res);
+}
+
+static const JSCFunctionListEntry js_array_buffer_funcs[] = {
+ JS_CFUNC_DEF("isView", 1, js_array_buffer_isView ),
+ JS_CGETSET_DEF("[Symbol.species]", js_get_this, NULL ),
+};
+
+static JSValue JS_ThrowTypeErrorDetachedArrayBuffer(JSContext *ctx)
+{
+ return JS_ThrowTypeError(ctx, "ArrayBuffer is detached");
+}
+
+static JSValue js_array_buffer_get_byteLength(JSContext *ctx,
+ JSValueConst this_val,
+ int class_id)
+{
+ JSArrayBuffer *abuf = JS_GetOpaque2(ctx, this_val, class_id);
+ if (!abuf)
+ return JS_EXCEPTION;
+ /* return 0 if detached */
+ return JS_NewUint32(ctx, abuf->byte_length);
+}
+
+void JS_DetachArrayBuffer(JSContext *ctx, JSValueConst obj)
+{
+ JSArrayBuffer *abuf = JS_GetOpaque(obj, JS_CLASS_ARRAY_BUFFER);
+ struct list_head *el;
+
+ if (!abuf || abuf->detached)
+ return;
+ if (abuf->free_func)
+ abuf->free_func(ctx->rt, abuf->opaque, abuf->data);
+ abuf->data = NULL;
+ abuf->byte_length = 0;
+ abuf->detached = TRUE;
+
+ list_for_each(el, &abuf->array_list) {
+ JSTypedArray *ta;
+ JSObject *p;
+
+ ta = list_entry(el, JSTypedArray, link);
+ p = ta->obj;
+ /* Note: the typed array length and offset fields are not modified */
+ if (p->class_id != JS_CLASS_DATAVIEW) {
+ p->u.array.count = 0;
+ p->u.array.u.ptr = NULL;
+ }
+ }
+}
+
+/* get an ArrayBuffer or SharedArrayBuffer */
+static JSArrayBuffer *js_get_array_buffer(JSContext *ctx, JSValueConst obj)
+{
+ JSObject *p;
+ if (JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT)
+ goto fail;
+ p = JS_VALUE_GET_OBJ(obj);
+ if (p->class_id != JS_CLASS_ARRAY_BUFFER &&
+ p->class_id != JS_CLASS_SHARED_ARRAY_BUFFER) {
+ fail:
+ JS_ThrowTypeErrorInvalidClass(ctx, JS_CLASS_ARRAY_BUFFER);
+ return NULL;
+ }
+ return p->u.array_buffer;
+}
+
+/* return NULL if exception. WARNING: any JS call can detach the
+ buffer and render the returned pointer invalid */
+uint8_t *JS_GetArrayBuffer(JSContext *ctx, size_t *psize, JSValueConst obj)
+{
+ JSArrayBuffer *abuf = js_get_array_buffer(ctx, obj);
+ if (!abuf)
+ goto fail;
+ if (abuf->detached) {
+ JS_ThrowTypeErrorDetachedArrayBuffer(ctx);
+ goto fail;
+ }
+ *psize = abuf->byte_length;
+ return abuf->data;
+ fail:
+ *psize = 0;
+ return NULL;
+}
+
+static JSValue js_array_buffer_slice(JSContext *ctx,
+ JSValueConst this_val,
+ int argc, JSValueConst *argv, int class_id)
+{
+ JSArrayBuffer *abuf, *new_abuf;
+ int64_t len, start, end, new_len;
+ JSValue ctor, new_obj;
+
+ abuf = JS_GetOpaque2(ctx, this_val, class_id);
+ if (!abuf)
+ return JS_EXCEPTION;
+ if (abuf->detached)
+ return JS_ThrowTypeErrorDetachedArrayBuffer(ctx);
+ len = abuf->byte_length;
+
+ if (JS_ToInt64Clamp(ctx, &start, argv[0], 0, len, len))
+ return JS_EXCEPTION;
+
+ end = len;
+ if (!JS_IsUndefined(argv[1])) {
+ if (JS_ToInt64Clamp(ctx, &end, argv[1], 0, len, len))
+ return JS_EXCEPTION;
+ }
+ new_len = max_int64(end - start, 0);
+ ctor = JS_SpeciesConstructor(ctx, this_val, JS_UNDEFINED);
+ if (JS_IsException(ctor))
+ return ctor;
+ if (JS_IsUndefined(ctor)) {
+ new_obj = js_array_buffer_constructor2(ctx, JS_UNDEFINED, new_len,
+ class_id);
+ } else {
+ JSValue args[1];
+ args[0] = JS_NewInt64(ctx, new_len);
+ new_obj = JS_CallConstructor(ctx, ctor, 1, (JSValueConst *)args);
+ JS_FreeValue(ctx, ctor);
+ JS_FreeValue(ctx, args[0]);
+ }
+ if (JS_IsException(new_obj))
+ return new_obj;
+ new_abuf = JS_GetOpaque2(ctx, new_obj, class_id);
+ if (!new_abuf)
+ goto fail;
+ if (js_same_value(ctx, new_obj, this_val)) {
+ JS_ThrowTypeError(ctx, "cannot use identical ArrayBuffer");
+ goto fail;
+ }
+ if (new_abuf->detached) {
+ JS_ThrowTypeErrorDetachedArrayBuffer(ctx);
+ goto fail;
+ }
+ if (new_abuf->byte_length < new_len) {
+ JS_ThrowTypeError(ctx, "new ArrayBuffer is too small");
+ goto fail;
+ }
+ /* must test again because of side effects */
+ if (abuf->detached) {
+ JS_ThrowTypeErrorDetachedArrayBuffer(ctx);
+ goto fail;
+ }
+ memcpy(new_abuf->data, abuf->data + start, new_len);
+ return new_obj;
+ fail:
+ JS_FreeValue(ctx, new_obj);
+ return JS_EXCEPTION;
+}
+
+static const JSCFunctionListEntry js_array_buffer_proto_funcs[] = {
+ JS_CGETSET_MAGIC_DEF("byteLength", js_array_buffer_get_byteLength, NULL, JS_CLASS_ARRAY_BUFFER ),
+ JS_CFUNC_MAGIC_DEF("slice", 2, js_array_buffer_slice, JS_CLASS_ARRAY_BUFFER ),
+ JS_PROP_STRING_DEF("[Symbol.toStringTag]", "ArrayBuffer", JS_PROP_CONFIGURABLE ),
+};
+
+/* SharedArrayBuffer */
+
+static const JSCFunctionListEntry js_shared_array_buffer_funcs[] = {
+ JS_CGETSET_DEF("[Symbol.species]", js_get_this, NULL ),
+};
+
+static const JSCFunctionListEntry js_shared_array_buffer_proto_funcs[] = {
+ JS_CGETSET_MAGIC_DEF("byteLength", js_array_buffer_get_byteLength, NULL, JS_CLASS_SHARED_ARRAY_BUFFER ),
+ JS_CFUNC_MAGIC_DEF("slice", 2, js_array_buffer_slice, JS_CLASS_SHARED_ARRAY_BUFFER ),
+ JS_PROP_STRING_DEF("[Symbol.toStringTag]", "SharedArrayBuffer", JS_PROP_CONFIGURABLE ),
+};
+
+static JSObject *get_typed_array(JSContext *ctx,
+ JSValueConst this_val,
+ int is_dataview)
+{
+ JSObject *p;
+ if (JS_VALUE_GET_TAG(this_val) != JS_TAG_OBJECT)
+ goto fail;
+ p = JS_VALUE_GET_OBJ(this_val);
+ if (is_dataview) {
+ if (p->class_id != JS_CLASS_DATAVIEW)
+ goto fail;
+ } else {
+ if (!(p->class_id >= JS_CLASS_UINT8C_ARRAY &&
+ p->class_id <= JS_CLASS_FLOAT64_ARRAY)) {
+ fail:
+ JS_ThrowTypeError(ctx, "not a %s", is_dataview ? "DataView" : "TypedArray");
+ return NULL;
+ }
+ }
+ return p;
+}
+
+/* WARNING: 'p' must be a typed array */
+static BOOL typed_array_is_detached(JSContext *ctx, JSObject *p)
+{
+ JSTypedArray *ta = p->u.typed_array;
+ JSArrayBuffer *abuf = ta->buffer->u.array_buffer;
+ /* XXX: could simplify test by ensuring that
+ p->u.array.u.ptr is NULL iff it is detached */
+ return abuf->detached;
+}
+
+/* WARNING: 'p' must be a typed array. Works even if the array buffer
+ is detached */
+static uint32_t typed_array_get_length(JSContext *ctx, JSObject *p)
+{
+ JSTypedArray *ta = p->u.typed_array;
+ int size_log2 = typed_array_size_log2(p->class_id);
+ return ta->length >> size_log2;
+}
+
+static int validate_typed_array(JSContext *ctx, JSValueConst this_val)
+{
+ JSObject *p;
+ p = get_typed_array(ctx, this_val, 0);
+ if (!p)
+ return -1;
+ if (typed_array_is_detached(ctx, p)) {
+ JS_ThrowTypeErrorDetachedArrayBuffer(ctx);
+ return -1;
+ }
+ return 0;
+}
+
+static JSValue js_typed_array_get_length(JSContext *ctx,
+ JSValueConst this_val)
+{
+ JSObject *p;
+ p = get_typed_array(ctx, this_val, 0);
+ if (!p)
+ return JS_EXCEPTION;
+ return JS_NewInt32(ctx, p->u.array.count);
+}
+
+static JSValue js_typed_array_get_buffer(JSContext *ctx,
+ JSValueConst this_val, int is_dataview)
+{
+ JSObject *p;
+ JSTypedArray *ta;
+ p = get_typed_array(ctx, this_val, is_dataview);
+ if (!p)
+ return JS_EXCEPTION;
+ ta = p->u.typed_array;
+ return JS_DupValue(ctx, JS_MKPTR(JS_TAG_OBJECT, ta->buffer));
+}
+
+static JSValue js_typed_array_get_byteLength(JSContext *ctx,
+ JSValueConst this_val,
+ int is_dataview)
+{
+ JSObject *p;
+ JSTypedArray *ta;
+ p = get_typed_array(ctx, this_val, is_dataview);
+ if (!p)
+ return JS_EXCEPTION;
+ if (typed_array_is_detached(ctx, p)) {
+ if (is_dataview) {
+ return JS_ThrowTypeErrorDetachedArrayBuffer(ctx);
+ } else {
+ return JS_NewInt32(ctx, 0);
+ }
+ }
+ ta = p->u.typed_array;
+ return JS_NewInt32(ctx, ta->length);
+}
+
+static JSValue js_typed_array_get_byteOffset(JSContext *ctx,
+ JSValueConst this_val,
+ int is_dataview)
+{
+ JSObject *p;
+ JSTypedArray *ta;
+ p = get_typed_array(ctx, this_val, is_dataview);
+ if (!p)
+ return JS_EXCEPTION;
+ if (typed_array_is_detached(ctx, p)) {
+ if (is_dataview) {
+ return JS_ThrowTypeErrorDetachedArrayBuffer(ctx);
+ } else {
+ return JS_NewInt32(ctx, 0);
+ }
+ }
+ ta = p->u.typed_array;
+ return JS_NewInt32(ctx, ta->offset);
+}
+
+/* Return the buffer associated to the typed array or an exception if
+ it is not a typed array or if the buffer is detached. pbyte_offset,
+ pbyte_length or pbytes_per_element can be NULL. */
+JSValue JS_GetTypedArrayBuffer(JSContext *ctx, JSValueConst obj,
+ size_t *pbyte_offset,
+ size_t *pbyte_length,
+ size_t *pbytes_per_element)
+{
+ JSObject *p;
+ JSTypedArray *ta;
+ p = get_typed_array(ctx, obj, FALSE);
+ if (!p)
+ return JS_EXCEPTION;
+ if (typed_array_is_detached(ctx, p))
+ return JS_ThrowTypeErrorDetachedArrayBuffer(ctx);
+ ta = p->u.typed_array;
+ if (pbyte_offset)
+ *pbyte_offset = ta->offset;
+ if (pbyte_length)
+ *pbyte_length = ta->length;
+ if (pbytes_per_element) {
+ *pbytes_per_element = 1 << typed_array_size_log2(p->class_id);
+ }
+ return JS_DupValue(ctx, JS_MKPTR(JS_TAG_OBJECT, ta->buffer));
+}
+
+static JSValue js_typed_array_get_toStringTag(JSContext *ctx,
+ JSValueConst this_val)
+{
+ JSObject *p;
+ if (JS_VALUE_GET_TAG(this_val) != JS_TAG_OBJECT)
+ return JS_UNDEFINED;
+ p = JS_VALUE_GET_OBJ(this_val);
+ if (!(p->class_id >= JS_CLASS_UINT8C_ARRAY &&
+ p->class_id <= JS_CLASS_FLOAT64_ARRAY))
+ return JS_UNDEFINED;
+ return JS_AtomToString(ctx, ctx->rt->class_array[p->class_id].class_name);
+}
+
+static JSValue js_typed_array_set_internal(JSContext *ctx,
+ JSValueConst dst,
+ JSValueConst src,
+ JSValueConst off)
+{
+ JSObject *p;
+ JSObject *src_p;
+ uint32_t i;
+ int64_t src_len, offset;
+ JSValue val, src_obj = JS_UNDEFINED;
+
+ p = get_typed_array(ctx, dst, 0);
+ if (!p)
+ goto fail;
+ if (JS_ToInt64Sat(ctx, &offset, off))
+ goto fail;
+ if (offset < 0)
+ goto range_error;
+ if (typed_array_is_detached(ctx, p)) {
+ detached:
+ JS_ThrowTypeErrorDetachedArrayBuffer(ctx);
+ goto fail;
+ }
+ src_obj = JS_ToObject(ctx, src);
+ if (JS_IsException(src_obj))
+ goto fail;
+ src_p = JS_VALUE_GET_OBJ(src_obj);
+ if (src_p->class_id >= JS_CLASS_UINT8C_ARRAY &&
+ src_p->class_id <= JS_CLASS_FLOAT64_ARRAY) {
+ JSTypedArray *dest_ta = p->u.typed_array;
+ JSArrayBuffer *dest_abuf = dest_ta->buffer->u.array_buffer;
+ JSTypedArray *src_ta = src_p->u.typed_array;
+ JSArrayBuffer *src_abuf = src_ta->buffer->u.array_buffer;
+ int shift = typed_array_size_log2(p->class_id);
+
+ if (src_abuf->detached)
+ goto detached;
+
+ src_len = src_p->u.array.count;
+ if (offset > (int64_t)(p->u.array.count - src_len))
+ goto range_error;
+
+ /* copying between typed objects */
+ if (src_p->class_id == p->class_id) {
+ /* same type, use memmove */
+ memmove(dest_abuf->data + dest_ta->offset + (offset << shift),
+ src_abuf->data + src_ta->offset, src_len << shift);
+ goto done;
+ }
+ if (dest_abuf->data == src_abuf->data) {
+ /* copying between the same buffer using different types of mappings
+ would require a temporary buffer */
+ }
+ /* otherwise, default behavior is slow but correct */
+ } else {
+ if (js_get_length64(ctx, &src_len, src_obj))
+ goto fail;
+ if (offset > (int64_t)(p->u.array.count - src_len)) {
+ range_error:
+ JS_ThrowRangeError(ctx, "invalid array length");
+ goto fail;
+ }
+ }
+ for(i = 0; i < src_len; i++) {
+ val = JS_GetPropertyUint32(ctx, src_obj, i);
+ if (JS_IsException(val))
+ goto fail;
+ if (JS_SetPropertyUint32(ctx, dst, offset + i, val) < 0)
+ goto fail;
+ }
+done:
+ JS_FreeValue(ctx, src_obj);
+ return JS_UNDEFINED;
+fail:
+ JS_FreeValue(ctx, src_obj);
+ return JS_EXCEPTION;
+}
+
+static JSValue js_typed_array_at(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSObject *p;
+ int64_t idx, len;
+
+ p = get_typed_array(ctx, this_val, 0);
+ if (!p)
+ return JS_EXCEPTION;
+
+ if (typed_array_is_detached(ctx, p)) {
+ JS_ThrowTypeErrorDetachedArrayBuffer(ctx);
+ return JS_EXCEPTION;
+ }
+
+ if (JS_ToInt64Sat(ctx, &idx, argv[0]))
+ return JS_EXCEPTION;
+
+ len = p->u.array.count;
+ if (idx < 0)
+ idx = len + idx;
+ if (idx < 0 || idx >= len)
+ return JS_UNDEFINED;
+ return JS_GetPropertyInt64(ctx, this_val, idx);
+}
+
+static JSValue js_typed_array_with(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValue arr, val;
+ JSObject *p;
+ int64_t idx, len;
+
+ p = get_typed_array(ctx, this_val, /*is_dataview*/0);
+ if (!p)
+ return JS_EXCEPTION;
+
+ if (JS_ToInt64Sat(ctx, &idx, argv[0]))
+ return JS_EXCEPTION;
+
+ len = p->u.array.count;
+ if (idx < 0)
+ idx = len + idx;
+ if (idx < 0 || idx >= len)
+ return JS_ThrowRangeError(ctx, "invalid array index");
+
+ val = JS_ToPrimitive(ctx, argv[1], HINT_NUMBER);
+ if (JS_IsException(val))
+ return JS_EXCEPTION;
+
+ arr = js_typed_array_constructor_ta(ctx, JS_UNDEFINED, this_val,
+ p->class_id);
+ if (JS_IsException(arr)) {
+ JS_FreeValue(ctx, val);
+ return JS_EXCEPTION;
+ }
+ if (JS_SetPropertyInt64(ctx, arr, idx, val) < 0) {
+ JS_FreeValue(ctx, arr);
+ return JS_EXCEPTION;
+ }
+ return arr;
+}
+
+static JSValue js_typed_array_set(JSContext *ctx,
+ JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValueConst offset = JS_UNDEFINED;
+ if (argc > 1) {
+ offset = argv[1];
+ }
+ return js_typed_array_set_internal(ctx, this_val, argv[0], offset);
+}
+
+static JSValue js_create_typed_array_iterator(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int magic)
+{
+ if (validate_typed_array(ctx, this_val))
+ return JS_EXCEPTION;
+ return js_create_array_iterator(ctx, this_val, argc, argv, magic);
+}
+
+/* return < 0 if exception */
+static int js_typed_array_get_length_internal(JSContext *ctx,
+ JSValueConst obj)
+{
+ JSObject *p;
+ p = get_typed_array(ctx, obj, 0);
+ if (!p)
+ return -1;
+ if (typed_array_is_detached(ctx, p)) {
+ JS_ThrowTypeErrorDetachedArrayBuffer(ctx);
+ return -1;
+ }
+ return p->u.array.count;
+}
+
+#if 0
+/* validate a typed array and return its length */
+static JSValue js_typed_array___getLength(JSContext *ctx,
+ JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ BOOL ignore_detached = JS_ToBool(ctx, argv[1]);
+
+ if (ignore_detached) {
+ return js_typed_array_get_length(ctx, argv[0]);
+ } else {
+ int len;
+ len = js_typed_array_get_length_internal(ctx, argv[0]);
+ if (len < 0)
+ return JS_EXCEPTION;
+ return JS_NewInt32(ctx, len);
+ }
+}
+#endif
+
+static JSValue js_typed_array_create(JSContext *ctx, JSValueConst ctor,
+ int argc, JSValueConst *argv)
+{
+ JSValue ret;
+ int new_len;
+ int64_t len;
+
+ ret = JS_CallConstructor(ctx, ctor, argc, argv);
+ if (JS_IsException(ret))
+ return ret;
+ /* validate the typed array */
+ new_len = js_typed_array_get_length_internal(ctx, ret);
+ if (new_len < 0)
+ goto fail;
+ if (argc == 1) {
+ /* ensure that it is large enough */
+ if (JS_ToLengthFree(ctx, &len, JS_DupValue(ctx, argv[0])))
+ goto fail;
+ if (new_len < len) {
+ JS_ThrowTypeError(ctx, "TypedArray length is too small");
+ fail:
+ JS_FreeValue(ctx, ret);
+ return JS_EXCEPTION;
+ }
+ }
+ return ret;
+}
+
+#if 0
+static JSValue js_typed_array___create(JSContext *ctx,
+ JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ return js_typed_array_create(ctx, argv[0], max_int(argc - 1, 0), argv + 1);
+}
+#endif
+
+static JSValue js_typed_array___speciesCreate(JSContext *ctx,
+ JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValueConst obj;
+ JSObject *p;
+ JSValue ctor, ret;
+ int argc1;
+
+ obj = argv[0];
+ p = get_typed_array(ctx, obj, 0);
+ if (!p)
+ return JS_EXCEPTION;
+ ctor = JS_SpeciesConstructor(ctx, obj, JS_UNDEFINED);
+ if (JS_IsException(ctor))
+ return ctor;
+ argc1 = max_int(argc - 1, 0);
+ if (JS_IsUndefined(ctor)) {
+ ret = js_typed_array_constructor(ctx, JS_UNDEFINED, argc1, argv + 1,
+ p->class_id);
+ } else {
+ ret = js_typed_array_create(ctx, ctor, argc1, argv + 1);
+ JS_FreeValue(ctx, ctor);
+ }
+ return ret;
+}
+
+static JSValue js_typed_array_from(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ // from(items, mapfn = void 0, this_arg = void 0)
+ JSValueConst items = argv[0], mapfn, this_arg;
+ JSValueConst args[2];
+ JSValue stack[2];
+ JSValue iter, arr, r, v, v2;
+ int64_t k, len;
+ int done, mapping;
+
+ mapping = FALSE;
+ mapfn = JS_UNDEFINED;
+ this_arg = JS_UNDEFINED;
+ r = JS_UNDEFINED;
+ arr = JS_UNDEFINED;
+ stack[0] = JS_UNDEFINED;
+ stack[1] = JS_UNDEFINED;
+
+ if (argc > 1) {
+ mapfn = argv[1];
+ if (!JS_IsUndefined(mapfn)) {
+ if (check_function(ctx, mapfn))
+ goto exception;
+ mapping = 1;
+ if (argc > 2)
+ this_arg = argv[2];
+ }
+ }
+ iter = JS_GetProperty(ctx, items, JS_ATOM_Symbol_iterator);
+ if (JS_IsException(iter))
+ goto exception;
+ if (!JS_IsUndefined(iter)) {
+ JS_FreeValue(ctx, iter);
+ arr = JS_NewArray(ctx);
+ if (JS_IsException(arr))
+ goto exception;
+ stack[0] = JS_DupValue(ctx, items);
+ if (js_for_of_start(ctx, &stack[1], FALSE))
+ goto exception;
+ for (k = 0;; k++) {
+ v = JS_IteratorNext(ctx, stack[0], stack[1], 0, NULL, &done);
+ if (JS_IsException(v))
+ goto exception_close;
+ if (done)
+ break;
+ if (JS_DefinePropertyValueInt64(ctx, arr, k, v, JS_PROP_C_W_E | JS_PROP_THROW) < 0)
+ goto exception_close;
+ }
+ } else {
+ arr = JS_ToObject(ctx, items);
+ if (JS_IsException(arr))
+ goto exception;
+ }
+ if (js_get_length64(ctx, &len, arr) < 0)
+ goto exception;
+ v = JS_NewInt64(ctx, len);
+ args[0] = v;
+ r = js_typed_array_create(ctx, this_val, 1, args);
+ JS_FreeValue(ctx, v);
+ if (JS_IsException(r))
+ goto exception;
+ for(k = 0; k < len; k++) {
+ v = JS_GetPropertyInt64(ctx, arr, k);
+ if (JS_IsException(v))
+ goto exception;
+ if (mapping) {
+ args[0] = v;
+ args[1] = JS_NewInt32(ctx, k);
+ v2 = JS_Call(ctx, mapfn, this_arg, 2, args);
+ JS_FreeValue(ctx, v);
+ v = v2;
+ if (JS_IsException(v))
+ goto exception;
+ }
+ if (JS_SetPropertyInt64(ctx, r, k, v) < 0)
+ goto exception;
+ }
+ goto done;
+
+ exception_close:
+ if (!JS_IsUndefined(stack[0]))
+ JS_IteratorClose(ctx, stack[0], TRUE);
+ exception:
+ JS_FreeValue(ctx, r);
+ r = JS_EXCEPTION;
+ done:
+ JS_FreeValue(ctx, arr);
+ JS_FreeValue(ctx, stack[0]);
+ JS_FreeValue(ctx, stack[1]);
+ return r;
+}
+
+static JSValue js_typed_array_of(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValue obj;
+ JSValueConst args[1];
+ int i;
+
+ args[0] = JS_NewInt32(ctx, argc);
+ obj = js_typed_array_create(ctx, this_val, 1, args);
+ if (JS_IsException(obj))
+ return obj;
+
+ for(i = 0; i < argc; i++) {
+ if (JS_SetPropertyUint32(ctx, obj, i, JS_DupValue(ctx, argv[i])) < 0) {
+ JS_FreeValue(ctx, obj);
+ return JS_EXCEPTION;
+ }
+ }
+ return obj;
+}
+
+static JSValue js_typed_array_copyWithin(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSObject *p;
+ int len, to, from, final, count, shift;
+
+ len = js_typed_array_get_length_internal(ctx, this_val);
+ if (len < 0)
+ return JS_EXCEPTION;
+
+ if (JS_ToInt32Clamp(ctx, &to, argv[0], 0, len, len))
+ return JS_EXCEPTION;
+
+ if (JS_ToInt32Clamp(ctx, &from, argv[1], 0, len, len))
+ return JS_EXCEPTION;
+
+ final = len;
+ if (argc > 2 && !JS_IsUndefined(argv[2])) {
+ if (JS_ToInt32Clamp(ctx, &final, argv[2], 0, len, len))
+ return JS_EXCEPTION;
+ }
+
+ count = min_int(final - from, len - to);
+ if (count > 0) {
+ p = JS_VALUE_GET_OBJ(this_val);
+ if (typed_array_is_detached(ctx, p))
+ return JS_ThrowTypeErrorDetachedArrayBuffer(ctx);
+ shift = typed_array_size_log2(p->class_id);
+ memmove(p->u.array.u.uint8_ptr + (to << shift),
+ p->u.array.u.uint8_ptr + (from << shift),
+ count << shift);
+ }
+ return JS_DupValue(ctx, this_val);
+}
+
+static JSValue js_typed_array_fill(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSObject *p;
+ int len, k, final, shift;
+ uint64_t v64;
+
+ len = js_typed_array_get_length_internal(ctx, this_val);
+ if (len < 0)
+ return JS_EXCEPTION;
+ p = JS_VALUE_GET_OBJ(this_val);
+
+ if (p->class_id == JS_CLASS_UINT8C_ARRAY) {
+ int32_t v;
+ if (JS_ToUint8ClampFree(ctx, &v, JS_DupValue(ctx, argv[0])))
+ return JS_EXCEPTION;
+ v64 = v;
+ } else if (p->class_id <= JS_CLASS_UINT32_ARRAY) {
+ uint32_t v;
+ if (JS_ToUint32(ctx, &v, argv[0]))
+ return JS_EXCEPTION;
+ v64 = v;
+ } else if (p->class_id <= JS_CLASS_BIG_UINT64_ARRAY) {
+ if (JS_ToBigInt64(ctx, (int64_t *)&v64, argv[0]))
+ return JS_EXCEPTION;
+ } else {
+ double d;
+ if (JS_ToFloat64(ctx, &d, argv[0]))
+ return JS_EXCEPTION;
+ if (p->class_id == JS_CLASS_FLOAT32_ARRAY) {
+ union {
+ float f;
+ uint32_t u32;
+ } u;
+ u.f = d;
+ v64 = u.u32;
+ } else {
+ JSFloat64Union u;
+ u.d = d;
+ v64 = u.u64;
+ }
+ }
+
+ k = 0;
+ if (argc > 1) {
+ if (JS_ToInt32Clamp(ctx, &k, argv[1], 0, len, len))
+ return JS_EXCEPTION;
+ }
+
+ final = len;
+ if (argc > 2 && !JS_IsUndefined(argv[2])) {
+ if (JS_ToInt32Clamp(ctx, &final, argv[2], 0, len, len))
+ return JS_EXCEPTION;
+ }
+
+ if (typed_array_is_detached(ctx, p))
+ return JS_ThrowTypeErrorDetachedArrayBuffer(ctx);
+
+ shift = typed_array_size_log2(p->class_id);
+ switch(shift) {
+ case 0:
+ if (k < final) {
+ memset(p->u.array.u.uint8_ptr + k, v64, final - k);
+ }
+ break;
+ case 1:
+ for(; k < final; k++) {
+ p->u.array.u.uint16_ptr[k] = v64;
+ }
+ break;
+ case 2:
+ for(; k < final; k++) {
+ p->u.array.u.uint32_ptr[k] = v64;
+ }
+ break;
+ case 3:
+ for(; k < final; k++) {
+ p->u.array.u.uint64_ptr[k] = v64;
+ }
+ break;
+ default:
+ abort();
+ }
+ return JS_DupValue(ctx, this_val);
+}
+
+static JSValue js_typed_array_find(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int mode)
+{
+ JSValueConst func, this_arg;
+ JSValueConst args[3];
+ JSValue val, index_val, res;
+ int len, k, end;
+ int dir;
+
+ val = JS_UNDEFINED;
+ len = js_typed_array_get_length_internal(ctx, this_val);
+ if (len < 0)
+ goto exception;
+
+ func = argv[0];
+ if (check_function(ctx, func))
+ goto exception;
+
+ this_arg = JS_UNDEFINED;
+ if (argc > 1)
+ this_arg = argv[1];
+
+ k = 0;
+ dir = 1;
+ end = len;
+ if (mode == ArrayFindLast || mode == ArrayFindLastIndex) {
+ k = len - 1;
+ dir = -1;
+ end = -1;
+ }
+
+ for(; k != end; k += dir) {
+ index_val = JS_NewInt32(ctx, k);
+ val = JS_GetPropertyValue(ctx, this_val, index_val);
+ if (JS_IsException(val))
+ goto exception;
+ args[0] = val;
+ args[1] = index_val;
+ args[2] = this_val;
+ res = JS_Call(ctx, func, this_arg, 3, args);
+ if (JS_IsException(res))
+ goto exception;
+ if (JS_ToBoolFree(ctx, res)) {
+ if (mode == ArrayFindIndex || mode == ArrayFindLastIndex) {
+ JS_FreeValue(ctx, val);
+ return index_val;
+ } else {
+ return val;
+ }
+ }
+ JS_FreeValue(ctx, val);
+ }
+ if (mode == ArrayFindIndex || mode == ArrayFindLastIndex)
+ return JS_NewInt32(ctx, -1);
+ else
+ return JS_UNDEFINED;
+
+exception:
+ JS_FreeValue(ctx, val);
+ return JS_EXCEPTION;
+}
+
+#define special_indexOf 0
+#define special_lastIndexOf 1
+#define special_includes -1
+
+static JSValue js_typed_array_indexOf(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int special)
+{
+ JSObject *p;
+ int len, tag, is_int, is_bigint, k, stop, inc, res = -1;
+ int64_t v64;
+ double d;
+ float f;
+
+ len = js_typed_array_get_length_internal(ctx, this_val);
+ if (len < 0)
+ goto exception;
+ if (len == 0)
+ goto done;
+
+ if (special == special_lastIndexOf) {
+ k = len - 1;
+ if (argc > 1) {
+ if (JS_ToFloat64(ctx, &d, argv[1]))
+ goto exception;
+ if (isnan(d)) {
+ k = 0;
+ } else {
+ if (d >= 0) {
+ if (d < k) {
+ k = d;
+ }
+ } else {
+ d += len;
+ if (d < 0)
+ goto done;
+ k = d;
+ }
+ }
+ }
+ stop = -1;
+ inc = -1;
+ } else {
+ k = 0;
+ if (argc > 1) {
+ if (JS_ToInt32Clamp(ctx, &k, argv[1], 0, len, len))
+ goto exception;
+ }
+ stop = len;
+ inc = 1;
+ }
+
+ p = JS_VALUE_GET_OBJ(this_val);
+ /* if the array was detached, no need to go further (but no
+ exception is raised) */
+ if (typed_array_is_detached(ctx, p)) {
+ /* "includes" scans all the properties, so "undefined" can match */
+ if (special == special_includes && JS_IsUndefined(argv[0]) && len > 0)
+ res = 0;
+ goto done;
+ }
+
+ is_bigint = 0;
+ is_int = 0; /* avoid warning */
+ v64 = 0; /* avoid warning */
+ tag = JS_VALUE_GET_NORM_TAG(argv[0]);
+ if (tag == JS_TAG_INT) {
+ is_int = 1;
+ v64 = JS_VALUE_GET_INT(argv[0]);
+ d = v64;
+ } else
+ if (tag == JS_TAG_FLOAT64) {
+ d = JS_VALUE_GET_FLOAT64(argv[0]);
+ if (d >= INT64_MIN && d < 0x1p63) {
+ v64 = d;
+ is_int = (v64 == d);
+ }
+ } else if (tag == JS_TAG_BIG_INT) {
+ JSBigFloat *p1 = JS_VALUE_GET_PTR(argv[0]);
+
+ if (p->class_id == JS_CLASS_BIG_INT64_ARRAY) {
+ if (bf_get_int64(&v64, &p1->num, 0) != 0)
+ goto done;
+ } else if (p->class_id == JS_CLASS_BIG_UINT64_ARRAY) {
+ if (bf_get_uint64((uint64_t *)&v64, &p1->num) != 0)
+ goto done;
+ } else {
+ goto done;
+ }
+ d = 0;
+ is_bigint = 1;
+ } else {
+ goto done;
+ }
+
+ switch (p->class_id) {
+ case JS_CLASS_INT8_ARRAY:
+ if (is_int && (int8_t)v64 == v64)
+ goto scan8;
+ break;
+ case JS_CLASS_UINT8C_ARRAY:
+ case JS_CLASS_UINT8_ARRAY:
+ if (is_int && (uint8_t)v64 == v64) {
+ const uint8_t *pv, *pp;
+ uint16_t v;
+ scan8:
+ pv = p->u.array.u.uint8_ptr;
+ v = v64;
+ if (inc > 0) {
+ pp = memchr(pv + k, v, len - k);
+ if (pp)
+ res = pp - pv;
+ } else {
+ for (; k != stop; k += inc) {
+ if (pv[k] == v) {
+ res = k;
+ break;
+ }
+ }
+ }
+ }
+ break;
+ case JS_CLASS_INT16_ARRAY:
+ if (is_int && (int16_t)v64 == v64)
+ goto scan16;
+ break;
+ case JS_CLASS_UINT16_ARRAY:
+ if (is_int && (uint16_t)v64 == v64) {
+ const uint16_t *pv;
+ uint16_t v;
+ scan16:
+ pv = p->u.array.u.uint16_ptr;
+ v = v64;
+ for (; k != stop; k += inc) {
+ if (pv[k] == v) {
+ res = k;
+ break;
+ }
+ }
+ }
+ break;
+ case JS_CLASS_INT32_ARRAY:
+ if (is_int && (int32_t)v64 == v64)
+ goto scan32;
+ break;
+ case JS_CLASS_UINT32_ARRAY:
+ if (is_int && (uint32_t)v64 == v64) {
+ const uint32_t *pv;
+ uint32_t v;
+ scan32:
+ pv = p->u.array.u.uint32_ptr;
+ v = v64;
+ for (; k != stop; k += inc) {
+ if (pv[k] == v) {
+ res = k;
+ break;
+ }
+ }
+ }
+ break;
+ case JS_CLASS_FLOAT32_ARRAY:
+ if (is_bigint)
+ break;
+ if (isnan(d)) {
+ const float *pv = p->u.array.u.float_ptr;
+ /* special case: indexOf returns -1, includes finds NaN */
+ if (special != special_includes)
+ goto done;
+ for (; k != stop; k += inc) {
+ if (isnan(pv[k])) {
+ res = k;
+ break;
+ }
+ }
+ } else if ((f = (float)d) == d) {
+ const float *pv = p->u.array.u.float_ptr;
+ for (; k != stop; k += inc) {
+ if (pv[k] == f) {
+ res = k;
+ break;
+ }
+ }
+ }
+ break;
+ case JS_CLASS_FLOAT64_ARRAY:
+ if (is_bigint)
+ break;
+ if (isnan(d)) {
+ const double *pv = p->u.array.u.double_ptr;
+ /* special case: indexOf returns -1, includes finds NaN */
+ if (special != special_includes)
+ goto done;
+ for (; k != stop; k += inc) {
+ if (isnan(pv[k])) {
+ res = k;
+ break;
+ }
+ }
+ } else {
+ const double *pv = p->u.array.u.double_ptr;
+ for (; k != stop; k += inc) {
+ if (pv[k] == d) {
+ res = k;
+ break;
+ }
+ }
+ }
+ break;
+ case JS_CLASS_BIG_INT64_ARRAY:
+ if (is_bigint || (is_math_mode(ctx) && is_int &&
+ v64 >= -MAX_SAFE_INTEGER &&
+ v64 <= MAX_SAFE_INTEGER)) {
+ goto scan64;
+ }
+ break;
+ case JS_CLASS_BIG_UINT64_ARRAY:
+ if (is_bigint || (is_math_mode(ctx) && is_int &&
+ v64 >= 0 && v64 <= MAX_SAFE_INTEGER)) {
+ const uint64_t *pv;
+ uint64_t v;
+ scan64:
+ pv = p->u.array.u.uint64_ptr;
+ v = v64;
+ for (; k != stop; k += inc) {
+ if (pv[k] == v) {
+ res = k;
+ break;
+ }
+ }
+ }
+ break;
+ }
+
+done:
+ if (special == special_includes)
+ return JS_NewBool(ctx, res >= 0);
+ else
+ return JS_NewInt32(ctx, res);
+
+exception:
+ return JS_EXCEPTION;
+}
+
+static JSValue js_typed_array_join(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int toLocaleString)
+{
+ JSValue sep = JS_UNDEFINED, el;
+ StringBuffer b_s, *b = &b_s;
+ JSString *p = NULL;
+ int i, n;
+ int c;
+
+ n = js_typed_array_get_length_internal(ctx, this_val);
+ if (n < 0)
+ goto exception;
+
+ c = ','; /* default separator */
+ if (!toLocaleString && argc > 0 && !JS_IsUndefined(argv[0])) {
+ sep = JS_ToString(ctx, argv[0]);
+ if (JS_IsException(sep))
+ goto exception;
+ p = JS_VALUE_GET_STRING(sep);
+ if (p->len == 1 && !p->is_wide_char)
+ c = p->u.str8[0];
+ else
+ c = -1;
+ }
+ string_buffer_init(ctx, b, 0);
+
+ /* XXX: optimize with direct access */
+ for(i = 0; i < n; i++) {
+ if (i > 0) {
+ if (c >= 0) {
+ if (string_buffer_putc8(b, c))
+ goto fail;
+ } else {
+ if (string_buffer_concat(b, p, 0, p->len))
+ goto fail;
+ }
+ }
+ el = JS_GetPropertyUint32(ctx, this_val, i);
+ /* Can return undefined for example if the typed array is detached */
+ if (!JS_IsNull(el) && !JS_IsUndefined(el)) {
+ if (JS_IsException(el))
+ goto fail;
+ if (toLocaleString) {
+ el = JS_ToLocaleStringFree(ctx, el);
+ }
+ if (string_buffer_concat_value_free(b, el))
+ goto fail;
+ }
+ }
+ JS_FreeValue(ctx, sep);
+ return string_buffer_end(b);
+
+fail:
+ string_buffer_free(b);
+ JS_FreeValue(ctx, sep);
+exception:
+ return JS_EXCEPTION;
+}
+
+static JSValue js_typed_array_reverse(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSObject *p;
+ int len;
+
+ len = js_typed_array_get_length_internal(ctx, this_val);
+ if (len < 0)
+ return JS_EXCEPTION;
+ if (len > 0) {
+ p = JS_VALUE_GET_OBJ(this_val);
+ switch (typed_array_size_log2(p->class_id)) {
+ case 0:
+ {
+ uint8_t *p1 = p->u.array.u.uint8_ptr;
+ uint8_t *p2 = p1 + len - 1;
+ while (p1 < p2) {
+ uint8_t v = *p1;
+ *p1++ = *p2;
+ *p2-- = v;
+ }
+ }
+ break;
+ case 1:
+ {
+ uint16_t *p1 = p->u.array.u.uint16_ptr;
+ uint16_t *p2 = p1 + len - 1;
+ while (p1 < p2) {
+ uint16_t v = *p1;
+ *p1++ = *p2;
+ *p2-- = v;
+ }
+ }
+ break;
+ case 2:
+ {
+ uint32_t *p1 = p->u.array.u.uint32_ptr;
+ uint32_t *p2 = p1 + len - 1;
+ while (p1 < p2) {
+ uint32_t v = *p1;
+ *p1++ = *p2;
+ *p2-- = v;
+ }
+ }
+ break;
+ case 3:
+ {
+ uint64_t *p1 = p->u.array.u.uint64_ptr;
+ uint64_t *p2 = p1 + len - 1;
+ while (p1 < p2) {
+ uint64_t v = *p1;
+ *p1++ = *p2;
+ *p2-- = v;
+ }
+ }
+ break;
+ default:
+ abort();
+ }
+ }
+ return JS_DupValue(ctx, this_val);
+}
+
+static JSValue js_typed_array_toReversed(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValue arr, ret;
+ JSObject *p;
+
+ p = get_typed_array(ctx, this_val, /*is_dataview*/0);
+ if (!p)
+ return JS_EXCEPTION;
+ arr = js_typed_array_constructor_ta(ctx, JS_UNDEFINED, this_val,
+ p->class_id);
+ if (JS_IsException(arr))
+ return JS_EXCEPTION;
+ ret = js_typed_array_reverse(ctx, arr, argc, argv);
+ JS_FreeValue(ctx, arr);
+ return ret;
+}
+
+static JSValue js_typed_array_slice(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValueConst args[2];
+ JSValue arr, val;
+ JSObject *p, *p1;
+ int n, len, start, final, count, shift;
+
+ arr = JS_UNDEFINED;
+ len = js_typed_array_get_length_internal(ctx, this_val);
+ if (len < 0)
+ goto exception;
+
+ if (JS_ToInt32Clamp(ctx, &start, argv[0], 0, len, len))
+ goto exception;
+ final = len;
+ if (!JS_IsUndefined(argv[1])) {
+ if (JS_ToInt32Clamp(ctx, &final, argv[1], 0, len, len))
+ goto exception;
+ }
+ count = max_int(final - start, 0);
+
+ p = get_typed_array(ctx, this_val, 0);
+ if (p == NULL)
+ goto exception;
+ shift = typed_array_size_log2(p->class_id);
+
+ args[0] = this_val;
+ args[1] = JS_NewInt32(ctx, count);
+ arr = js_typed_array___speciesCreate(ctx, JS_UNDEFINED, 2, args);
+ if (JS_IsException(arr))
+ goto exception;
+
+ if (count > 0) {
+ if (validate_typed_array(ctx, this_val)
+ || validate_typed_array(ctx, arr))
+ goto exception;
+
+ p1 = get_typed_array(ctx, arr, 0);
+ if (p1 != NULL && p->class_id == p1->class_id &&
+ typed_array_get_length(ctx, p1) >= count &&
+ typed_array_get_length(ctx, p) >= start + count) {
+ memcpy(p1->u.array.u.uint8_ptr,
+ p->u.array.u.uint8_ptr + (start << shift),
+ count << shift);
+ } else {
+ for (n = 0; n < count; n++) {
+ val = JS_GetPropertyValue(ctx, this_val, JS_NewInt32(ctx, start + n));
+ if (JS_IsException(val))
+ goto exception;
+ if (JS_SetPropertyValue(ctx, arr, JS_NewInt32(ctx, n), val,
+ JS_PROP_THROW) < 0)
+ goto exception;
+ }
+ }
+ }
+ return arr;
+
+ exception:
+ JS_FreeValue(ctx, arr);
+ return JS_EXCEPTION;
+}
+
+static JSValue js_typed_array_subarray(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValueConst args[4];
+ JSValue arr, byteOffset, ta_buffer;
+ JSObject *p;
+ int len, start, final, count, shift, offset;
+
+ p = get_typed_array(ctx, this_val, 0);
+ if (!p)
+ goto exception;
+ len = p->u.array.count;
+ if (JS_ToInt32Clamp(ctx, &start, argv[0], 0, len, len))
+ goto exception;
+
+ final = len;
+ if (!JS_IsUndefined(argv[1])) {
+ if (JS_ToInt32Clamp(ctx, &final, argv[1], 0, len, len))
+ goto exception;
+ }
+ count = max_int(final - start, 0);
+ byteOffset = js_typed_array_get_byteOffset(ctx, this_val, 0);
+ if (JS_IsException(byteOffset))
+ goto exception;
+ shift = typed_array_size_log2(p->class_id);
+ offset = JS_VALUE_GET_INT(byteOffset) + (start << shift);
+ JS_FreeValue(ctx, byteOffset);
+ ta_buffer = js_typed_array_get_buffer(ctx, this_val, 0);
+ if (JS_IsException(ta_buffer))
+ goto exception;
+ args[0] = this_val;
+ args[1] = ta_buffer;
+ args[2] = JS_NewInt32(ctx, offset);
+ args[3] = JS_NewInt32(ctx, count);
+ arr = js_typed_array___speciesCreate(ctx, JS_UNDEFINED, 4, args);
+ JS_FreeValue(ctx, ta_buffer);
+ return arr;
+
+ exception:
+ return JS_EXCEPTION;
+}
+
+/* TypedArray.prototype.sort */
+
+static int js_cmp_doubles(double x, double y)
+{
+ if (isnan(x)) return isnan(y) ? 0 : +1;
+ if (isnan(y)) return -1;
+ if (x < y) return -1;
+ if (x > y) return 1;
+ if (x != 0) return 0;
+ if (signbit(x)) return signbit(y) ? 0 : -1;
+ else return signbit(y) ? 1 : 0;
+}
+
+static int js_TA_cmp_int8(const void *a, const void *b, void *opaque) {
+ return *(const int8_t *)a - *(const int8_t *)b;
+}
+
+static int js_TA_cmp_uint8(const void *a, const void *b, void *opaque) {
+ return *(const uint8_t *)a - *(const uint8_t *)b;
+}
+
+static int js_TA_cmp_int16(const void *a, const void *b, void *opaque) {
+ return *(const int16_t *)a - *(const int16_t *)b;
+}
+
+static int js_TA_cmp_uint16(const void *a, const void *b, void *opaque) {
+ return *(const uint16_t *)a - *(const uint16_t *)b;
+}
+
+static int js_TA_cmp_int32(const void *a, const void *b, void *opaque) {
+ int32_t x = *(const int32_t *)a;
+ int32_t y = *(const int32_t *)b;
+ return (y < x) - (y > x);
+}
+
+static int js_TA_cmp_uint32(const void *a, const void *b, void *opaque) {
+ uint32_t x = *(const uint32_t *)a;
+ uint32_t y = *(const uint32_t *)b;
+ return (y < x) - (y > x);
+}
+
+static int js_TA_cmp_int64(const void *a, const void *b, void *opaque) {
+ int64_t x = *(const int64_t *)a;
+ int64_t y = *(const int64_t *)b;
+ return (y < x) - (y > x);
+}
+
+static int js_TA_cmp_uint64(const void *a, const void *b, void *opaque) {
+ uint64_t x = *(const uint64_t *)a;
+ uint64_t y = *(const uint64_t *)b;
+ return (y < x) - (y > x);
+}
+
+static int js_TA_cmp_float32(const void *a, const void *b, void *opaque) {
+ return js_cmp_doubles(*(const float *)a, *(const float *)b);
+}
+
+static int js_TA_cmp_float64(const void *a, const void *b, void *opaque) {
+ return js_cmp_doubles(*(const double *)a, *(const double *)b);
+}
+
+static JSValue js_TA_get_int8(JSContext *ctx, const void *a) {
+ return JS_NewInt32(ctx, *(const int8_t *)a);
+}
+
+static JSValue js_TA_get_uint8(JSContext *ctx, const void *a) {
+ return JS_NewInt32(ctx, *(const uint8_t *)a);
+}
+
+static JSValue js_TA_get_int16(JSContext *ctx, const void *a) {
+ return JS_NewInt32(ctx, *(const int16_t *)a);
+}
+
+static JSValue js_TA_get_uint16(JSContext *ctx, const void *a) {
+ return JS_NewInt32(ctx, *(const uint16_t *)a);
+}
+
+static JSValue js_TA_get_int32(JSContext *ctx, const void *a) {
+ return JS_NewInt32(ctx, *(const int32_t *)a);
+}
+
+static JSValue js_TA_get_uint32(JSContext *ctx, const void *a) {
+ return JS_NewUint32(ctx, *(const uint32_t *)a);
+}
+
+static JSValue js_TA_get_int64(JSContext *ctx, const void *a) {
+ return JS_NewBigInt64(ctx, *(int64_t *)a);
+}
+
+static JSValue js_TA_get_uint64(JSContext *ctx, const void *a) {
+ return JS_NewBigUint64(ctx, *(uint64_t *)a);
+}
+
+static JSValue js_TA_get_float32(JSContext *ctx, const void *a) {
+ return __JS_NewFloat64(ctx, *(const float *)a);
+}
+
+static JSValue js_TA_get_float64(JSContext *ctx, const void *a) {
+ return __JS_NewFloat64(ctx, *(const double *)a);
+}
+
+struct TA_sort_context {
+ JSContext *ctx;
+ int exception; /* 1 = exception, 2 = detached typed array */
+ JSValueConst arr;
+ JSValueConst cmp;
+ JSValue (*getfun)(JSContext *ctx, const void *a);
+ uint8_t *array_ptr; /* cannot change unless the array is detached */
+ int elt_size;
+};
+
+static int js_TA_cmp_generic(const void *a, const void *b, void *opaque) {
+ struct TA_sort_context *psc = opaque;
+ JSContext *ctx = psc->ctx;
+ uint32_t a_idx, b_idx;
+ JSValueConst argv[2];
+ JSValue res;
+ int cmp;
+
+ cmp = 0;
+ if (!psc->exception) {
+ /* Note: the typed array can be detached without causing an
+ error */
+ a_idx = *(uint32_t *)a;
+ b_idx = *(uint32_t *)b;
+ argv[0] = psc->getfun(ctx, psc->array_ptr +
+ a_idx * (size_t)psc->elt_size);
+ argv[1] = psc->getfun(ctx, psc->array_ptr +
+ b_idx * (size_t)(psc->elt_size));
+ res = JS_Call(ctx, psc->cmp, JS_UNDEFINED, 2, argv);
+ if (JS_IsException(res)) {
+ psc->exception = 1;
+ goto done;
+ }
+ if (JS_VALUE_GET_TAG(res) == JS_TAG_INT) {
+ int val = JS_VALUE_GET_INT(res);
+ cmp = (val > 0) - (val < 0);
+ } else {
+ double val;
+ if (JS_ToFloat64Free(ctx, &val, res) < 0) {
+ psc->exception = 1;
+ goto done;
+ } else {
+ cmp = (val > 0) - (val < 0);
+ }
+ }
+ if (cmp == 0) {
+ /* make sort stable: compare array offsets */
+ cmp = (a_idx > b_idx) - (a_idx < b_idx);
+ }
+ if (unlikely(typed_array_is_detached(ctx,
+ JS_VALUE_GET_PTR(psc->arr)))) {
+ psc->exception = 2;
+ }
+ done:
+ JS_FreeValue(ctx, (JSValue)argv[0]);
+ JS_FreeValue(ctx, (JSValue)argv[1]);
+ }
+ return cmp;
+}
+
+static JSValue js_typed_array_sort(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSObject *p;
+ int len;
+ size_t elt_size;
+ struct TA_sort_context tsc;
+ void *array_ptr;
+ int (*cmpfun)(const void *a, const void *b, void *opaque);
+
+ tsc.ctx = ctx;
+ tsc.exception = 0;
+ tsc.arr = this_val;
+ tsc.cmp = argv[0];
+
+ if (!JS_IsUndefined(tsc.cmp) && check_function(ctx, tsc.cmp))
+ return JS_EXCEPTION;
+ len = js_typed_array_get_length_internal(ctx, this_val);
+ if (len < 0)
+ return JS_EXCEPTION;
+
+ if (len > 1) {
+ p = JS_VALUE_GET_OBJ(this_val);
+ switch (p->class_id) {
+ case JS_CLASS_INT8_ARRAY:
+ tsc.getfun = js_TA_get_int8;
+ cmpfun = js_TA_cmp_int8;
+ break;
+ case JS_CLASS_UINT8C_ARRAY:
+ case JS_CLASS_UINT8_ARRAY:
+ tsc.getfun = js_TA_get_uint8;
+ cmpfun = js_TA_cmp_uint8;
+ break;
+ case JS_CLASS_INT16_ARRAY:
+ tsc.getfun = js_TA_get_int16;
+ cmpfun = js_TA_cmp_int16;
+ break;
+ case JS_CLASS_UINT16_ARRAY:
+ tsc.getfun = js_TA_get_uint16;
+ cmpfun = js_TA_cmp_uint16;
+ break;
+ case JS_CLASS_INT32_ARRAY:
+ tsc.getfun = js_TA_get_int32;
+ cmpfun = js_TA_cmp_int32;
+ break;
+ case JS_CLASS_UINT32_ARRAY:
+ tsc.getfun = js_TA_get_uint32;
+ cmpfun = js_TA_cmp_uint32;
+ break;
+ case JS_CLASS_BIG_INT64_ARRAY:
+ tsc.getfun = js_TA_get_int64;
+ cmpfun = js_TA_cmp_int64;
+ break;
+ case JS_CLASS_BIG_UINT64_ARRAY:
+ tsc.getfun = js_TA_get_uint64;
+ cmpfun = js_TA_cmp_uint64;
+ break;
+ case JS_CLASS_FLOAT32_ARRAY:
+ tsc.getfun = js_TA_get_float32;
+ cmpfun = js_TA_cmp_float32;
+ break;
+ case JS_CLASS_FLOAT64_ARRAY:
+ tsc.getfun = js_TA_get_float64;
+ cmpfun = js_TA_cmp_float64;
+ break;
+ default:
+ abort();
+ }
+ array_ptr = p->u.array.u.ptr;
+ elt_size = 1 << typed_array_size_log2(p->class_id);
+ if (!JS_IsUndefined(tsc.cmp)) {
+ uint32_t *array_idx;
+ void *array_tmp;
+ size_t i, j;
+
+ /* XXX: a stable sort would use less memory */
+ array_idx = js_malloc(ctx, len * sizeof(array_idx[0]));
+ if (!array_idx)
+ return JS_EXCEPTION;
+ for(i = 0; i < len; i++)
+ array_idx[i] = i;
+ tsc.array_ptr = array_ptr;
+ tsc.elt_size = elt_size;
+ rqsort(array_idx, len, sizeof(array_idx[0]),
+ js_TA_cmp_generic, &tsc);
+ if (tsc.exception) {
+ if (tsc.exception == 1)
+ goto fail;
+ /* detached typed array during the sort: no error */
+ } else {
+ array_tmp = js_malloc(ctx, len * elt_size);
+ if (!array_tmp) {
+ fail:
+ js_free(ctx, array_idx);
+ return JS_EXCEPTION;
+ }
+ memcpy(array_tmp, array_ptr, len * elt_size);
+ switch(elt_size) {
+ case 1:
+ for(i = 0; i < len; i++) {
+ j = array_idx[i];
+ ((uint8_t *)array_ptr)[i] = ((uint8_t *)array_tmp)[j];
+ }
+ break;
+ case 2:
+ for(i = 0; i < len; i++) {
+ j = array_idx[i];
+ ((uint16_t *)array_ptr)[i] = ((uint16_t *)array_tmp)[j];
+ }
+ break;
+ case 4:
+ for(i = 0; i < len; i++) {
+ j = array_idx[i];
+ ((uint32_t *)array_ptr)[i] = ((uint32_t *)array_tmp)[j];
+ }
+ break;
+ case 8:
+ for(i = 0; i < len; i++) {
+ j = array_idx[i];
+ ((uint64_t *)array_ptr)[i] = ((uint64_t *)array_tmp)[j];
+ }
+ break;
+ default:
+ abort();
+ }
+ js_free(ctx, array_tmp);
+ }
+ js_free(ctx, array_idx);
+ } else {
+ rqsort(array_ptr, len, elt_size, cmpfun, &tsc);
+ if (tsc.exception)
+ return JS_EXCEPTION;
+ }
+ }
+ return JS_DupValue(ctx, this_val);
+}
+
+static JSValue js_typed_array_toSorted(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ JSValue arr, ret;
+ JSObject *p;
+
+ p = get_typed_array(ctx, this_val, /*is_dataview*/0);
+ if (!p)
+ return JS_EXCEPTION;
+ arr = js_typed_array_constructor_ta(ctx, JS_UNDEFINED, this_val,
+ p->class_id);
+ if (JS_IsException(arr))
+ return JS_EXCEPTION;
+ ret = js_typed_array_sort(ctx, arr, argc, argv);
+ JS_FreeValue(ctx, arr);
+ return ret;
+}
+
+static const JSCFunctionListEntry js_typed_array_base_funcs[] = {
+ JS_CFUNC_DEF("from", 1, js_typed_array_from ),
+ JS_CFUNC_DEF("of", 0, js_typed_array_of ),
+ JS_CGETSET_DEF("[Symbol.species]", js_get_this, NULL ),
+ //JS_CFUNC_DEF("__getLength", 2, js_typed_array___getLength ),
+ //JS_CFUNC_DEF("__create", 2, js_typed_array___create ),
+ //JS_CFUNC_DEF("__speciesCreate", 2, js_typed_array___speciesCreate ),
+};
+
+static const JSCFunctionListEntry js_typed_array_base_proto_funcs[] = {
+ JS_CGETSET_DEF("length", js_typed_array_get_length, NULL ),
+ JS_CFUNC_DEF("at", 1, js_typed_array_at ),
+ JS_CFUNC_DEF("with", 2, js_typed_array_with ),
+ JS_CGETSET_MAGIC_DEF("buffer", js_typed_array_get_buffer, NULL, 0 ),
+ JS_CGETSET_MAGIC_DEF("byteLength", js_typed_array_get_byteLength, NULL, 0 ),
+ JS_CGETSET_MAGIC_DEF("byteOffset", js_typed_array_get_byteOffset, NULL, 0 ),
+ JS_CFUNC_DEF("set", 1, js_typed_array_set ),
+ JS_CFUNC_MAGIC_DEF("values", 0, js_create_typed_array_iterator, JS_ITERATOR_KIND_VALUE ),
+ JS_ALIAS_DEF("[Symbol.iterator]", "values" ),
+ JS_CFUNC_MAGIC_DEF("keys", 0, js_create_typed_array_iterator, JS_ITERATOR_KIND_KEY ),
+ JS_CFUNC_MAGIC_DEF("entries", 0, js_create_typed_array_iterator, JS_ITERATOR_KIND_KEY_AND_VALUE ),
+ JS_CGETSET_DEF("[Symbol.toStringTag]", js_typed_array_get_toStringTag, NULL ),
+ JS_CFUNC_DEF("copyWithin", 2, js_typed_array_copyWithin ),
+ JS_CFUNC_MAGIC_DEF("every", 1, js_array_every, special_every | special_TA ),
+ JS_CFUNC_MAGIC_DEF("some", 1, js_array_every, special_some | special_TA ),
+ JS_CFUNC_MAGIC_DEF("forEach", 1, js_array_every, special_forEach | special_TA ),
+ JS_CFUNC_MAGIC_DEF("map", 1, js_array_every, special_map | special_TA ),
+ JS_CFUNC_MAGIC_DEF("filter", 1, js_array_every, special_filter | special_TA ),
+ JS_CFUNC_MAGIC_DEF("reduce", 1, js_array_reduce, special_reduce | special_TA ),
+ JS_CFUNC_MAGIC_DEF("reduceRight", 1, js_array_reduce, special_reduceRight | special_TA ),
+ JS_CFUNC_DEF("fill", 1, js_typed_array_fill ),
+ JS_CFUNC_MAGIC_DEF("find", 1, js_typed_array_find, ArrayFind ),
+ JS_CFUNC_MAGIC_DEF("findIndex", 1, js_typed_array_find, ArrayFindIndex ),
+ JS_CFUNC_MAGIC_DEF("findLast", 1, js_typed_array_find, ArrayFindLast ),
+ JS_CFUNC_MAGIC_DEF("findLastIndex", 1, js_typed_array_find, ArrayFindLastIndex ),
+ JS_CFUNC_DEF("reverse", 0, js_typed_array_reverse ),
+ JS_CFUNC_DEF("toReversed", 0, js_typed_array_toReversed ),
+ JS_CFUNC_DEF("slice", 2, js_typed_array_slice ),
+ JS_CFUNC_DEF("subarray", 2, js_typed_array_subarray ),
+ JS_CFUNC_DEF("sort", 1, js_typed_array_sort ),
+ JS_CFUNC_DEF("toSorted", 1, js_typed_array_toSorted ),
+ JS_CFUNC_MAGIC_DEF("join", 1, js_typed_array_join, 0 ),
+ JS_CFUNC_MAGIC_DEF("toLocaleString", 0, js_typed_array_join, 1 ),
+ JS_CFUNC_MAGIC_DEF("indexOf", 1, js_typed_array_indexOf, special_indexOf ),
+ JS_CFUNC_MAGIC_DEF("lastIndexOf", 1, js_typed_array_indexOf, special_lastIndexOf ),
+ JS_CFUNC_MAGIC_DEF("includes", 1, js_typed_array_indexOf, special_includes ),
+ //JS_ALIAS_BASE_DEF("toString", "toString", 2 /* Array.prototype. */), @@@
+};
+
+static JSValue js_typed_array_base_constructor(JSContext *ctx,
+ JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ return JS_ThrowTypeError(ctx, "cannot be called");
+}
+
+/* 'obj' must be an allocated typed array object */
+static int typed_array_init(JSContext *ctx, JSValueConst obj,
+ JSValue buffer, uint64_t offset, uint64_t len)
+{
+ JSTypedArray *ta;
+ JSObject *p, *pbuffer;
+ JSArrayBuffer *abuf;
+ int size_log2;
+
+ p = JS_VALUE_GET_OBJ(obj);
+ size_log2 = typed_array_size_log2(p->class_id);
+ ta = js_malloc(ctx, sizeof(*ta));
+ if (!ta) {
+ JS_FreeValue(ctx, buffer);
+ return -1;
+ }
+ pbuffer = JS_VALUE_GET_OBJ(buffer);
+ abuf = pbuffer->u.array_buffer;
+ ta->obj = p;
+ ta->buffer = pbuffer;
+ ta->offset = offset;
+ ta->length = len << size_log2;
+ list_add_tail(&ta->link, &abuf->array_list);
+ p->u.typed_array = ta;
+ p->u.array.count = len;
+ p->u.array.u.ptr = abuf->data + offset;
+ return 0;
+}
+
+
+static JSValue js_array_from_iterator(JSContext *ctx, uint32_t *plen,
+ JSValueConst obj, JSValueConst method)
+{
+ JSValue arr, iter, next_method = JS_UNDEFINED, val;
+ BOOL done;
+ uint32_t k;
+
+ *plen = 0;
+ arr = JS_NewArray(ctx);
+ if (JS_IsException(arr))
+ return arr;
+ iter = JS_GetIterator2(ctx, obj, method);
+ if (JS_IsException(iter))
+ goto fail;
+ next_method = JS_GetProperty(ctx, iter, JS_ATOM_next);
+ if (JS_IsException(next_method))
+ goto fail;
+ k = 0;
+ for(;;) {
+ val = JS_IteratorNext(ctx, iter, next_method, 0, NULL, &done);
+ if (JS_IsException(val))
+ goto fail;
+ if (done) {
+ JS_FreeValue(ctx, val);
+ break;
+ }
+ if (JS_CreateDataPropertyUint32(ctx, arr, k, val, JS_PROP_THROW) < 0)
+ goto fail;
+ k++;
+ }
+ JS_FreeValue(ctx, next_method);
+ JS_FreeValue(ctx, iter);
+ *plen = k;
+ return arr;
+ fail:
+ JS_FreeValue(ctx, next_method);
+ JS_FreeValue(ctx, iter);
+ JS_FreeValue(ctx, arr);
+ return JS_EXCEPTION;
+}
+
+static JSValue js_typed_array_constructor_obj(JSContext *ctx,
+ JSValueConst new_target,
+ JSValueConst obj,
+ int classid)
+{
+ JSValue iter, ret, arr = JS_UNDEFINED, val, buffer;
+ uint32_t i;
+ int size_log2;
+ int64_t len;
+
+ size_log2 = typed_array_size_log2(classid);
+ ret = js_create_from_ctor(ctx, new_target, classid);
+ if (JS_IsException(ret))
+ return JS_EXCEPTION;
+
+ iter = JS_GetProperty(ctx, obj, JS_ATOM_Symbol_iterator);
+ if (JS_IsException(iter))
+ goto fail;
+ if (!JS_IsUndefined(iter) && !JS_IsNull(iter)) {
+ uint32_t len1;
+ arr = js_array_from_iterator(ctx, &len1, obj, iter);
+ JS_FreeValue(ctx, iter);
+ if (JS_IsException(arr))
+ goto fail;
+ len = len1;
+ } else {
+ if (js_get_length64(ctx, &len, obj))
+ goto fail;
+ arr = JS_DupValue(ctx, obj);
+ }
+
+ buffer = js_array_buffer_constructor1(ctx, JS_UNDEFINED,
+ len << size_log2);
+ if (JS_IsException(buffer))
+ goto fail;
+ if (typed_array_init(ctx, ret, buffer, 0, len))
+ goto fail;
+
+ for(i = 0; i < len; i++) {
+ val = JS_GetPropertyUint32(ctx, arr, i);
+ if (JS_IsException(val))
+ goto fail;
+ if (JS_SetPropertyUint32(ctx, ret, i, val) < 0)
+ goto fail;
+ }
+ JS_FreeValue(ctx, arr);
+ return ret;
+ fail:
+ JS_FreeValue(ctx, arr);
+ JS_FreeValue(ctx, ret);
+ return JS_EXCEPTION;
+}
+
+static JSValue js_typed_array_constructor_ta(JSContext *ctx,
+ JSValueConst new_target,
+ JSValueConst src_obj,
+ int classid)
+{
+ JSObject *p, *src_buffer;
+ JSTypedArray *ta;
+ JSValue obj, buffer;
+ uint32_t len, i;
+ int size_log2;
+ JSArrayBuffer *src_abuf, *abuf;
+
+ obj = js_create_from_ctor(ctx, new_target, classid);
+ if (JS_IsException(obj))
+ return obj;
+ p = JS_VALUE_GET_OBJ(src_obj);
+ if (typed_array_is_detached(ctx, p)) {
+ JS_ThrowTypeErrorDetachedArrayBuffer(ctx);
+ goto fail;
+ }
+ ta = p->u.typed_array;
+ len = p->u.array.count;
+ src_buffer = ta->buffer;
+ src_abuf = src_buffer->u.array_buffer;
+ size_log2 = typed_array_size_log2(classid);
+ buffer = js_array_buffer_constructor1(ctx, JS_UNDEFINED,
+ (uint64_t)len << size_log2);
+ if (JS_IsException(buffer))
+ goto fail;
+ /* necessary because it could have been detached */
+ if (typed_array_is_detached(ctx, p)) {
+ JS_FreeValue(ctx, buffer);
+ JS_ThrowTypeErrorDetachedArrayBuffer(ctx);
+ goto fail;
+ }
+ abuf = JS_GetOpaque(buffer, JS_CLASS_ARRAY_BUFFER);
+ if (typed_array_init(ctx, obj, buffer, 0, len))
+ goto fail;
+ if (p->class_id == classid) {
+ /* same type: copy the content */
+ memcpy(abuf->data, src_abuf->data + ta->offset, abuf->byte_length);
+ } else {
+ for(i = 0; i < len; i++) {
+ JSValue val;
+ val = JS_GetPropertyUint32(ctx, src_obj, i);
+ if (JS_IsException(val))
+ goto fail;
+ if (JS_SetPropertyUint32(ctx, obj, i, val) < 0)
+ goto fail;
+ }
+ }
+ return obj;
+ fail:
+ JS_FreeValue(ctx, obj);
+ return JS_EXCEPTION;
+}
+
+static JSValue js_typed_array_constructor(JSContext *ctx,
+ JSValueConst new_target,
+ int argc, JSValueConst *argv,
+ int classid)
+{
+ JSValue buffer, obj;
+ JSArrayBuffer *abuf;
+ int size_log2;
+ uint64_t len, offset;
+
+ size_log2 = typed_array_size_log2(classid);
+ if (JS_VALUE_GET_TAG(argv[0]) != JS_TAG_OBJECT) {
+ if (JS_ToIndex(ctx, &len, argv[0]))
+ return JS_EXCEPTION;
+ buffer = js_array_buffer_constructor1(ctx, JS_UNDEFINED,
+ len << size_log2);
+ if (JS_IsException(buffer))
+ return JS_EXCEPTION;
+ offset = 0;
+ } else {
+ JSObject *p = JS_VALUE_GET_OBJ(argv[0]);
+ if (p->class_id == JS_CLASS_ARRAY_BUFFER ||
+ p->class_id == JS_CLASS_SHARED_ARRAY_BUFFER) {
+ abuf = p->u.array_buffer;
+ if (JS_ToIndex(ctx, &offset, argv[1]))
+ return JS_EXCEPTION;
+ if (abuf->detached)
+ return JS_ThrowTypeErrorDetachedArrayBuffer(ctx);
+ if ((offset & ((1 << size_log2) - 1)) != 0 ||
+ offset > abuf->byte_length)
+ return JS_ThrowRangeError(ctx, "invalid offset");
+ if (JS_IsUndefined(argv[2])) {
+ if ((abuf->byte_length & ((1 << size_log2) - 1)) != 0)
+ goto invalid_length;
+ len = (abuf->byte_length - offset) >> size_log2;
+ } else {
+ if (JS_ToIndex(ctx, &len, argv[2]))
+ return JS_EXCEPTION;
+ if (abuf->detached)
+ return JS_ThrowTypeErrorDetachedArrayBuffer(ctx);
+ if ((offset + (len << size_log2)) > abuf->byte_length) {
+ invalid_length:
+ return JS_ThrowRangeError(ctx, "invalid length");
+ }
+ }
+ buffer = JS_DupValue(ctx, argv[0]);
+ } else {
+ if (p->class_id >= JS_CLASS_UINT8C_ARRAY &&
+ p->class_id <= JS_CLASS_FLOAT64_ARRAY) {
+ return js_typed_array_constructor_ta(ctx, new_target, argv[0], classid);
+ } else {
+ return js_typed_array_constructor_obj(ctx, new_target, argv[0], classid);
+ }
+ }
+ }
+
+ obj = js_create_from_ctor(ctx, new_target, classid);
+ if (JS_IsException(obj)) {
+ JS_FreeValue(ctx, buffer);
+ return JS_EXCEPTION;
+ }
+ if (typed_array_init(ctx, obj, buffer, offset, len)) {
+ JS_FreeValue(ctx, obj);
+ return JS_EXCEPTION;
+ }
+ return obj;
+}
+
+static void js_typed_array_finalizer(JSRuntime *rt, JSValue val)
+{
+ JSObject *p = JS_VALUE_GET_OBJ(val);
+ JSTypedArray *ta = p->u.typed_array;
+ if (ta) {
+ /* during the GC the finalizers are called in an arbitrary
+ order so the ArrayBuffer finalizer may have been called */
+ if (ta->link.next) {
+ list_del(&ta->link);
+ }
+ JS_FreeValueRT(rt, JS_MKPTR(JS_TAG_OBJECT, ta->buffer));
+ js_free_rt(rt, ta);
+ }
+}
+
+static void js_typed_array_mark(JSRuntime *rt, JSValueConst val,
+ JS_MarkFunc *mark_func)
+{
+ JSObject *p = JS_VALUE_GET_OBJ(val);
+ JSTypedArray *ta = p->u.typed_array;
+ if (ta) {
+ JS_MarkValue(rt, JS_MKPTR(JS_TAG_OBJECT, ta->buffer), mark_func);
+ }
+}
+
+static JSValue js_dataview_constructor(JSContext *ctx,
+ JSValueConst new_target,
+ int argc, JSValueConst *argv)
+{
+ JSArrayBuffer *abuf;
+ uint64_t offset;
+ uint32_t len;
+ JSValueConst buffer;
+ JSValue obj;
+ JSTypedArray *ta;
+ JSObject *p;
+
+ buffer = argv[0];
+ abuf = js_get_array_buffer(ctx, buffer);
+ if (!abuf)
+ return JS_EXCEPTION;
+ offset = 0;
+ if (argc > 1) {
+ if (JS_ToIndex(ctx, &offset, argv[1]))
+ return JS_EXCEPTION;
+ }
+ if (abuf->detached)
+ return JS_ThrowTypeErrorDetachedArrayBuffer(ctx);
+ if (offset > abuf->byte_length)
+ return JS_ThrowRangeError(ctx, "invalid byteOffset");
+ len = abuf->byte_length - offset;
+ if (argc > 2 && !JS_IsUndefined(argv[2])) {
+ uint64_t l;
+ if (JS_ToIndex(ctx, &l, argv[2]))
+ return JS_EXCEPTION;
+ if (l > len)
+ return JS_ThrowRangeError(ctx, "invalid byteLength");
+ len = l;
+ }
+
+ obj = js_create_from_ctor(ctx, new_target, JS_CLASS_DATAVIEW);
+ if (JS_IsException(obj))
+ return JS_EXCEPTION;
+ if (abuf->detached) {
+ /* could have been detached in js_create_from_ctor() */
+ JS_ThrowTypeErrorDetachedArrayBuffer(ctx);
+ goto fail;
+ }
+ ta = js_malloc(ctx, sizeof(*ta));
+ if (!ta) {
+ fail:
+ JS_FreeValue(ctx, obj);
+ return JS_EXCEPTION;
+ }
+ p = JS_VALUE_GET_OBJ(obj);
+ ta->obj = p;
+ ta->buffer = JS_VALUE_GET_OBJ(JS_DupValue(ctx, buffer));
+ ta->offset = offset;
+ ta->length = len;
+ list_add_tail(&ta->link, &abuf->array_list);
+ p->u.typed_array = ta;
+ return obj;
+}
+
+static JSValue js_dataview_getValue(JSContext *ctx,
+ JSValueConst this_obj,
+ int argc, JSValueConst *argv, int class_id)
+{
+ JSTypedArray *ta;
+ JSArrayBuffer *abuf;
+ BOOL littleEndian, is_swap;
+ int size;
+ uint8_t *ptr;
+ uint32_t v;
+ uint64_t pos;
+
+ ta = JS_GetOpaque2(ctx, this_obj, JS_CLASS_DATAVIEW);
+ if (!ta)
+ return JS_EXCEPTION;
+ size = 1 << typed_array_size_log2(class_id);
+ if (JS_ToIndex(ctx, &pos, argv[0]))
+ return JS_EXCEPTION;
+ littleEndian = argc > 1 && JS_ToBool(ctx, argv[1]);
+ is_swap = littleEndian ^ !is_be();
+ abuf = ta->buffer->u.array_buffer;
+ if (abuf->detached)
+ return JS_ThrowTypeErrorDetachedArrayBuffer(ctx);
+ if ((pos + size) > ta->length)
+ return JS_ThrowRangeError(ctx, "out of bound");
+ ptr = abuf->data + ta->offset + pos;
+
+ switch(class_id) {
+ case JS_CLASS_INT8_ARRAY:
+ return JS_NewInt32(ctx, *(int8_t *)ptr);
+ case JS_CLASS_UINT8_ARRAY:
+ return JS_NewInt32(ctx, *(uint8_t *)ptr);
+ case JS_CLASS_INT16_ARRAY:
+ v = get_u16(ptr);
+ if (is_swap)
+ v = bswap16(v);
+ return JS_NewInt32(ctx, (int16_t)v);
+ case JS_CLASS_UINT16_ARRAY:
+ v = get_u16(ptr);
+ if (is_swap)
+ v = bswap16(v);
+ return JS_NewInt32(ctx, v);
+ case JS_CLASS_INT32_ARRAY:
+ v = get_u32(ptr);
+ if (is_swap)
+ v = bswap32(v);
+ return JS_NewInt32(ctx, v);
+ case JS_CLASS_UINT32_ARRAY:
+ v = get_u32(ptr);
+ if (is_swap)
+ v = bswap32(v);
+ return JS_NewUint32(ctx, v);
+ case JS_CLASS_BIG_INT64_ARRAY:
+ {
+ uint64_t v;
+ v = get_u64(ptr);
+ if (is_swap)
+ v = bswap64(v);
+ return JS_NewBigInt64(ctx, v);
+ }
+ break;
+ case JS_CLASS_BIG_UINT64_ARRAY:
+ {
+ uint64_t v;
+ v = get_u64(ptr);
+ if (is_swap)
+ v = bswap64(v);
+ return JS_NewBigUint64(ctx, v);
+ }
+ break;
+ case JS_CLASS_FLOAT32_ARRAY:
+ {
+ union {
+ float f;
+ uint32_t i;
+ } u;
+ v = get_u32(ptr);
+ if (is_swap)
+ v = bswap32(v);
+ u.i = v;
+ return __JS_NewFloat64(ctx, u.f);
+ }
+ case JS_CLASS_FLOAT64_ARRAY:
+ {
+ union {
+ double f;
+ uint64_t i;
+ } u;
+ u.i = get_u64(ptr);
+ if (is_swap)
+ u.i = bswap64(u.i);
+ return __JS_NewFloat64(ctx, u.f);
+ }
+ default:
+ abort();
+ }
+}
+
+static JSValue js_dataview_setValue(JSContext *ctx,
+ JSValueConst this_obj,
+ int argc, JSValueConst *argv, int class_id)
+{
+ JSTypedArray *ta;
+ JSArrayBuffer *abuf;
+ BOOL littleEndian, is_swap;
+ int size;
+ uint8_t *ptr;
+ uint64_t v64;
+ uint32_t v;
+ uint64_t pos;
+ JSValueConst val;
+
+ ta = JS_GetOpaque2(ctx, this_obj, JS_CLASS_DATAVIEW);
+ if (!ta)
+ return JS_EXCEPTION;
+ size = 1 << typed_array_size_log2(class_id);
+ if (JS_ToIndex(ctx, &pos, argv[0]))
+ return JS_EXCEPTION;
+ val = argv[1];
+ v = 0; /* avoid warning */
+ v64 = 0; /* avoid warning */
+ if (class_id <= JS_CLASS_UINT32_ARRAY) {
+ if (JS_ToUint32(ctx, &v, val))
+ return JS_EXCEPTION;
+ } else if (class_id <= JS_CLASS_BIG_UINT64_ARRAY) {
+ if (JS_ToBigInt64(ctx, (int64_t *)&v64, val))
+ return JS_EXCEPTION;
+ } else {
+ double d;
+ if (JS_ToFloat64(ctx, &d, val))
+ return JS_EXCEPTION;
+ if (class_id == JS_CLASS_FLOAT32_ARRAY) {
+ union {
+ float f;
+ uint32_t i;
+ } u;
+ u.f = d;
+ v = u.i;
+ } else {
+ JSFloat64Union u;
+ u.d = d;
+ v64 = u.u64;
+ }
+ }
+ littleEndian = argc > 2 && JS_ToBool(ctx, argv[2]);
+ is_swap = littleEndian ^ !is_be();
+ abuf = ta->buffer->u.array_buffer;
+ if (abuf->detached)
+ return JS_ThrowTypeErrorDetachedArrayBuffer(ctx);
+ if ((pos + size) > ta->length)
+ return JS_ThrowRangeError(ctx, "out of bound");
+ ptr = abuf->data + ta->offset + pos;
+
+ switch(class_id) {
+ case JS_CLASS_INT8_ARRAY:
+ case JS_CLASS_UINT8_ARRAY:
+ *ptr = v;
+ break;
+ case JS_CLASS_INT16_ARRAY:
+ case JS_CLASS_UINT16_ARRAY:
+ if (is_swap)
+ v = bswap16(v);
+ put_u16(ptr, v);
+ break;
+ case JS_CLASS_INT32_ARRAY:
+ case JS_CLASS_UINT32_ARRAY:
+ case JS_CLASS_FLOAT32_ARRAY:
+ if (is_swap)
+ v = bswap32(v);
+ put_u32(ptr, v);
+ break;
+ case JS_CLASS_BIG_INT64_ARRAY:
+ case JS_CLASS_BIG_UINT64_ARRAY:
+ case JS_CLASS_FLOAT64_ARRAY:
+ if (is_swap)
+ v64 = bswap64(v64);
+ put_u64(ptr, v64);
+ break;
+ default:
+ abort();
+ }
+ return JS_UNDEFINED;
+}
+
+static const JSCFunctionListEntry js_dataview_proto_funcs[] = {
+ JS_CGETSET_MAGIC_DEF("buffer", js_typed_array_get_buffer, NULL, 1 ),
+ JS_CGETSET_MAGIC_DEF("byteLength", js_typed_array_get_byteLength, NULL, 1 ),
+ JS_CGETSET_MAGIC_DEF("byteOffset", js_typed_array_get_byteOffset, NULL, 1 ),
+ JS_CFUNC_MAGIC_DEF("getInt8", 1, js_dataview_getValue, JS_CLASS_INT8_ARRAY ),
+ JS_CFUNC_MAGIC_DEF("getUint8", 1, js_dataview_getValue, JS_CLASS_UINT8_ARRAY ),
+ JS_CFUNC_MAGIC_DEF("getInt16", 1, js_dataview_getValue, JS_CLASS_INT16_ARRAY ),
+ JS_CFUNC_MAGIC_DEF("getUint16", 1, js_dataview_getValue, JS_CLASS_UINT16_ARRAY ),
+ JS_CFUNC_MAGIC_DEF("getInt32", 1, js_dataview_getValue, JS_CLASS_INT32_ARRAY ),
+ JS_CFUNC_MAGIC_DEF("getUint32", 1, js_dataview_getValue, JS_CLASS_UINT32_ARRAY ),
+ JS_CFUNC_MAGIC_DEF("getBigInt64", 1, js_dataview_getValue, JS_CLASS_BIG_INT64_ARRAY ),
+ JS_CFUNC_MAGIC_DEF("getBigUint64", 1, js_dataview_getValue, JS_CLASS_BIG_UINT64_ARRAY ),
+ JS_CFUNC_MAGIC_DEF("getFloat32", 1, js_dataview_getValue, JS_CLASS_FLOAT32_ARRAY ),
+ JS_CFUNC_MAGIC_DEF("getFloat64", 1, js_dataview_getValue, JS_CLASS_FLOAT64_ARRAY ),
+ JS_CFUNC_MAGIC_DEF("setInt8", 2, js_dataview_setValue, JS_CLASS_INT8_ARRAY ),
+ JS_CFUNC_MAGIC_DEF("setUint8", 2, js_dataview_setValue, JS_CLASS_UINT8_ARRAY ),
+ JS_CFUNC_MAGIC_DEF("setInt16", 2, js_dataview_setValue, JS_CLASS_INT16_ARRAY ),
+ JS_CFUNC_MAGIC_DEF("setUint16", 2, js_dataview_setValue, JS_CLASS_UINT16_ARRAY ),
+ JS_CFUNC_MAGIC_DEF("setInt32", 2, js_dataview_setValue, JS_CLASS_INT32_ARRAY ),
+ JS_CFUNC_MAGIC_DEF("setUint32", 2, js_dataview_setValue, JS_CLASS_UINT32_ARRAY ),
+ JS_CFUNC_MAGIC_DEF("setBigInt64", 2, js_dataview_setValue, JS_CLASS_BIG_INT64_ARRAY ),
+ JS_CFUNC_MAGIC_DEF("setBigUint64", 2, js_dataview_setValue, JS_CLASS_BIG_UINT64_ARRAY ),
+ JS_CFUNC_MAGIC_DEF("setFloat32", 2, js_dataview_setValue, JS_CLASS_FLOAT32_ARRAY ),
+ JS_CFUNC_MAGIC_DEF("setFloat64", 2, js_dataview_setValue, JS_CLASS_FLOAT64_ARRAY ),
+ JS_PROP_STRING_DEF("[Symbol.toStringTag]", "DataView", JS_PROP_CONFIGURABLE ),
+};
+
+/* Atomics */
+#ifdef CONFIG_ATOMICS
+
+typedef enum AtomicsOpEnum {
+ ATOMICS_OP_ADD,
+ ATOMICS_OP_AND,
+ ATOMICS_OP_OR,
+ ATOMICS_OP_SUB,
+ ATOMICS_OP_XOR,
+ ATOMICS_OP_EXCHANGE,
+ ATOMICS_OP_COMPARE_EXCHANGE,
+ ATOMICS_OP_LOAD,
+} AtomicsOpEnum;
+
+static void *js_atomics_get_ptr(JSContext *ctx,
+ JSArrayBuffer **pabuf,
+ int *psize_log2, JSClassID *pclass_id,
+ JSValueConst obj, JSValueConst idx_val,
+ int is_waitable)
+{
+ JSObject *p;
+ JSTypedArray *ta;
+ JSArrayBuffer *abuf;
+ void *ptr;
+ uint64_t idx;
+ BOOL err;
+ int size_log2;
+
+ if (JS_VALUE_GET_TAG(obj) != JS_TAG_OBJECT)
+ goto fail;
+ p = JS_VALUE_GET_OBJ(obj);
+ if (is_waitable)
+ err = (p->class_id != JS_CLASS_INT32_ARRAY &&
+ p->class_id != JS_CLASS_BIG_INT64_ARRAY);
+ else
+ err = !(p->class_id >= JS_CLASS_INT8_ARRAY &&
+ p->class_id <= JS_CLASS_BIG_UINT64_ARRAY);
+ if (err) {
+ fail:
+ JS_ThrowTypeError(ctx, "integer TypedArray expected");
+ return NULL;
+ }
+ ta = p->u.typed_array;
+ abuf = ta->buffer->u.array_buffer;
+ if (!abuf->shared) {
+ if (is_waitable == 2) {
+ JS_ThrowTypeError(ctx, "not a SharedArrayBuffer TypedArray");
+ return NULL;
+ }
+ if (abuf->detached) {
+ JS_ThrowTypeErrorDetachedArrayBuffer(ctx);
+ return NULL;
+ }
+ }
+ if (JS_ToIndex(ctx, &idx, idx_val)) {
+ return NULL;
+ }
+ /* if the array buffer is detached, p->u.array.count = 0 */
+ if (idx >= p->u.array.count) {
+ JS_ThrowRangeError(ctx, "out-of-bound access");
+ return NULL;
+ }
+ size_log2 = typed_array_size_log2(p->class_id);
+ ptr = p->u.array.u.uint8_ptr + ((uintptr_t)idx << size_log2);
+ if (pabuf)
+ *pabuf = abuf;
+ if (psize_log2)
+ *psize_log2 = size_log2;
+ if (pclass_id)
+ *pclass_id = p->class_id;
+ return ptr;
+}
+
+static JSValue js_atomics_op(JSContext *ctx,
+ JSValueConst this_obj,
+ int argc, JSValueConst *argv, int op)
+{
+ int size_log2;
+ uint64_t v, a, rep_val;
+ void *ptr;
+ JSValue ret;
+ JSClassID class_id;
+ JSArrayBuffer *abuf;
+
+ ptr = js_atomics_get_ptr(ctx, &abuf, &size_log2, &class_id,
+ argv[0], argv[1], 0);
+ if (!ptr)
+ return JS_EXCEPTION;
+ rep_val = 0;
+ if (op == ATOMICS_OP_LOAD) {
+ v = 0;
+ } else {
+ if (size_log2 == 3) {
+ int64_t v64;
+ if (JS_ToBigInt64(ctx, &v64, argv[2]))
+ return JS_EXCEPTION;
+ v = v64;
+ if (op == ATOMICS_OP_COMPARE_EXCHANGE) {
+ if (JS_ToBigInt64(ctx, &v64, argv[3]))
+ return JS_EXCEPTION;
+ rep_val = v64;
+ }
+ } else {
+ uint32_t v32;
+ if (JS_ToUint32(ctx, &v32, argv[2]))
+ return JS_EXCEPTION;
+ v = v32;
+ if (op == ATOMICS_OP_COMPARE_EXCHANGE) {
+ if (JS_ToUint32(ctx, &v32, argv[3]))
+ return JS_EXCEPTION;
+ rep_val = v32;
+ }
+ }
+ if (abuf->detached)
+ return JS_ThrowTypeErrorDetachedArrayBuffer(ctx);
+ }
+
+ switch(op | (size_log2 << 3)) {
+
+#define OP(op_name, func_name) \
+ case ATOMICS_OP_ ## op_name | (0 << 3): \
+ a = func_name((_Atomic(uint8_t) *)ptr, v); \
+ break; \
+ case ATOMICS_OP_ ## op_name | (1 << 3): \
+ a = func_name((_Atomic(uint16_t) *)ptr, v); \
+ break; \
+ case ATOMICS_OP_ ## op_name | (2 << 3): \
+ a = func_name((_Atomic(uint32_t) *)ptr, v); \
+ break; \
+ case ATOMICS_OP_ ## op_name | (3 << 3): \
+ a = func_name((_Atomic(uint64_t) *)ptr, v); \
+ break;
+
+ OP(ADD, atomic_fetch_add)
+ OP(AND, atomic_fetch_and)
+ OP(OR, atomic_fetch_or)
+ OP(SUB, atomic_fetch_sub)
+ OP(XOR, atomic_fetch_xor)
+ OP(EXCHANGE, atomic_exchange)
+#undef OP
+
+ case ATOMICS_OP_LOAD | (0 << 3):
+ a = atomic_load((_Atomic(uint8_t) *)ptr);
+ break;
+ case ATOMICS_OP_LOAD | (1 << 3):
+ a = atomic_load((_Atomic(uint16_t) *)ptr);
+ break;
+ case ATOMICS_OP_LOAD | (2 << 3):
+ a = atomic_load((_Atomic(uint32_t) *)ptr);
+ break;
+ case ATOMICS_OP_LOAD | (3 << 3):
+ a = atomic_load((_Atomic(uint64_t) *)ptr);
+ break;
+
+ case ATOMICS_OP_COMPARE_EXCHANGE | (0 << 3):
+ {
+ uint8_t v1 = v;
+ atomic_compare_exchange_strong((_Atomic(uint8_t) *)ptr, &v1, rep_val);
+ a = v1;
+ }
+ break;
+ case ATOMICS_OP_COMPARE_EXCHANGE | (1 << 3):
+ {
+ uint16_t v1 = v;
+ atomic_compare_exchange_strong((_Atomic(uint16_t) *)ptr, &v1, rep_val);
+ a = v1;
+ }
+ break;
+ case ATOMICS_OP_COMPARE_EXCHANGE | (2 << 3):
+ {
+ uint32_t v1 = v;
+ atomic_compare_exchange_strong((_Atomic(uint32_t) *)ptr, &v1, rep_val);
+ a = v1;
+ }
+ break;
+ case ATOMICS_OP_COMPARE_EXCHANGE | (3 << 3):
+ {
+ uint64_t v1 = v;
+ atomic_compare_exchange_strong((_Atomic(uint64_t) *)ptr, &v1, rep_val);
+ a = v1;
+ }
+ break;
+ default:
+ abort();
+ }
+
+ switch(class_id) {
+ case JS_CLASS_INT8_ARRAY:
+ a = (int8_t)a;
+ goto done;
+ case JS_CLASS_UINT8_ARRAY:
+ a = (uint8_t)a;
+ goto done;
+ case JS_CLASS_INT16_ARRAY:
+ a = (int16_t)a;
+ goto done;
+ case JS_CLASS_UINT16_ARRAY:
+ a = (uint16_t)a;
+ goto done;
+ case JS_CLASS_INT32_ARRAY:
+ done:
+ ret = JS_NewInt32(ctx, a);
+ break;
+ case JS_CLASS_UINT32_ARRAY:
+ ret = JS_NewUint32(ctx, a);
+ break;
+ case JS_CLASS_BIG_INT64_ARRAY:
+ ret = JS_NewBigInt64(ctx, a);
+ break;
+ case JS_CLASS_BIG_UINT64_ARRAY:
+ ret = JS_NewBigUint64(ctx, a);
+ break;
+ default:
+ abort();
+ }
+ return ret;
+}
+
+static JSValue js_atomics_store(JSContext *ctx,
+ JSValueConst this_obj,
+ int argc, JSValueConst *argv)
+{
+ int size_log2;
+ void *ptr;
+ JSValue ret;
+ JSArrayBuffer *abuf;
+
+ ptr = js_atomics_get_ptr(ctx, &abuf, &size_log2, NULL,
+ argv[0], argv[1], 0);
+ if (!ptr)
+ return JS_EXCEPTION;
+ if (size_log2 == 3) {
+ int64_t v64;
+ ret = JS_ToBigIntValueFree(ctx, JS_DupValue(ctx, argv[2]));
+ if (JS_IsException(ret))
+ return ret;
+ if (JS_ToBigInt64(ctx, &v64, ret)) {
+ JS_FreeValue(ctx, ret);
+ return JS_EXCEPTION;
+ }
+ if (abuf->detached)
+ return JS_ThrowTypeErrorDetachedArrayBuffer(ctx);
+ atomic_store((_Atomic(uint64_t) *)ptr, v64);
+ } else {
+ uint32_t v;
+ /* XXX: spec, would be simpler to return the written value */
+ ret = JS_ToIntegerFree(ctx, JS_DupValue(ctx, argv[2]));
+ if (JS_IsException(ret))
+ return ret;
+ if (JS_ToUint32(ctx, &v, ret)) {
+ JS_FreeValue(ctx, ret);
+ return JS_EXCEPTION;
+ }
+ if (abuf->detached)
+ return JS_ThrowTypeErrorDetachedArrayBuffer(ctx);
+ switch(size_log2) {
+ case 0:
+ atomic_store((_Atomic(uint8_t) *)ptr, v);
+ break;
+ case 1:
+ atomic_store((_Atomic(uint16_t) *)ptr, v);
+ break;
+ case 2:
+ atomic_store((_Atomic(uint32_t) *)ptr, v);
+ break;
+ default:
+ abort();
+ }
+ }
+ return ret;
+}
+
+static JSValue js_atomics_isLockFree(JSContext *ctx,
+ JSValueConst this_obj,
+ int argc, JSValueConst *argv)
+{
+ int v, ret;
+ if (JS_ToInt32Sat(ctx, &v, argv[0]))
+ return JS_EXCEPTION;
+ ret = (v == 1 || v == 2 || v == 4 || v == 8);
+ return JS_NewBool(ctx, ret);
+}
+
+typedef struct JSAtomicsWaiter {
+ struct list_head link;
+ BOOL linked;
+ pthread_cond_t cond;
+ int32_t *ptr;
+} JSAtomicsWaiter;
+
+static pthread_mutex_t js_atomics_mutex = PTHREAD_MUTEX_INITIALIZER;
+static struct list_head js_atomics_waiter_list =
+ LIST_HEAD_INIT(js_atomics_waiter_list);
+
+static JSValue js_atomics_wait(JSContext *ctx,
+ JSValueConst this_obj,
+ int argc, JSValueConst *argv)
+{
+ int64_t v;
+ int32_t v32;
+ void *ptr;
+ int64_t timeout;
+ struct timespec ts;
+ JSAtomicsWaiter waiter_s, *waiter;
+ int ret, size_log2, res;
+ double d;
+
+ ptr = js_atomics_get_ptr(ctx, NULL, &size_log2, NULL,
+ argv[0], argv[1], 2);
+ if (!ptr)
+ return JS_EXCEPTION;
+ if (size_log2 == 3) {
+ if (JS_ToBigInt64(ctx, &v, argv[2]))
+ return JS_EXCEPTION;
+ } else {
+ if (JS_ToInt32(ctx, &v32, argv[2]))
+ return JS_EXCEPTION;
+ v = v32;
+ }
+ if (JS_ToFloat64(ctx, &d, argv[3]))
+ return JS_EXCEPTION;
+ /* must use INT64_MAX + 1 because INT64_MAX cannot be exactly represented as a double */
+ if (isnan(d) || d >= 0x1p63)
+ timeout = INT64_MAX;
+ else if (d < 0)
+ timeout = 0;
+ else
+ timeout = (int64_t)d;
+ if (!ctx->rt->can_block)
+ return JS_ThrowTypeError(ctx, "cannot block in this thread");
+
+ /* XXX: inefficient if large number of waiters, should hash on
+ 'ptr' value */
+ /* XXX: use Linux futexes when available ? */
+ pthread_mutex_lock(&js_atomics_mutex);
+ if (size_log2 == 3) {
+ res = *(int64_t *)ptr != v;
+ } else {
+ res = *(int32_t *)ptr != v;
+ }
+ if (res) {
+ pthread_mutex_unlock(&js_atomics_mutex);
+ return JS_AtomToString(ctx, JS_ATOM_not_equal);
+ }
+
+ waiter = &waiter_s;
+ waiter->ptr = ptr;
+ pthread_cond_init(&waiter->cond, NULL);
+ waiter->linked = TRUE;
+ list_add_tail(&waiter->link, &js_atomics_waiter_list);
+
+ if (timeout == INT64_MAX) {
+ pthread_cond_wait(&waiter->cond, &js_atomics_mutex);
+ ret = 0;
+ } else {
+ /* XXX: use clock monotonic */
+ clock_gettime(CLOCK_REALTIME, &ts);
+ ts.tv_sec += timeout / 1000;
+ ts.tv_nsec += (timeout % 1000) * 1000000;
+ if (ts.tv_nsec >= 1000000000) {
+ ts.tv_nsec -= 1000000000;
+ ts.tv_sec++;
+ }
+ ret = pthread_cond_timedwait(&waiter->cond, &js_atomics_mutex,
+ &ts);
+ }
+ if (waiter->linked)
+ list_del(&waiter->link);
+ pthread_mutex_unlock(&js_atomics_mutex);
+ pthread_cond_destroy(&waiter->cond);
+ if (ret == ETIMEDOUT) {
+ return JS_AtomToString(ctx, JS_ATOM_timed_out);
+ } else {
+ return JS_AtomToString(ctx, JS_ATOM_ok);
+ }
+}
+
+static JSValue js_atomics_notify(JSContext *ctx,
+ JSValueConst this_obj,
+ int argc, JSValueConst *argv)
+{
+ struct list_head *el, *el1, waiter_list;
+ int32_t count, n;
+ void *ptr;
+ JSAtomicsWaiter *waiter;
+ JSArrayBuffer *abuf;
+
+ ptr = js_atomics_get_ptr(ctx, &abuf, NULL, NULL, argv[0], argv[1], 1);
+ if (!ptr)
+ return JS_EXCEPTION;
+
+ if (JS_IsUndefined(argv[2])) {
+ count = INT32_MAX;
+ } else {
+ if (JS_ToInt32Clamp(ctx, &count, argv[2], 0, INT32_MAX, 0))
+ return JS_EXCEPTION;
+ }
+ if (abuf->detached)
+ return JS_ThrowTypeErrorDetachedArrayBuffer(ctx);
+
+ n = 0;
+ if (abuf->shared && count > 0) {
+ pthread_mutex_lock(&js_atomics_mutex);
+ init_list_head(&waiter_list);
+ list_for_each_safe(el, el1, &js_atomics_waiter_list) {
+ waiter = list_entry(el, JSAtomicsWaiter, link);
+ if (waiter->ptr == ptr) {
+ list_del(&waiter->link);
+ waiter->linked = FALSE;
+ list_add_tail(&waiter->link, &waiter_list);
+ n++;
+ if (n >= count)
+ break;
+ }
+ }
+ list_for_each(el, &waiter_list) {
+ waiter = list_entry(el, JSAtomicsWaiter, link);
+ pthread_cond_signal(&waiter->cond);
+ }
+ pthread_mutex_unlock(&js_atomics_mutex);
+ }
+ return JS_NewInt32(ctx, n);
+}
+
+static const JSCFunctionListEntry js_atomics_funcs[] = {
+ JS_CFUNC_MAGIC_DEF("add", 3, js_atomics_op, ATOMICS_OP_ADD ),
+ JS_CFUNC_MAGIC_DEF("and", 3, js_atomics_op, ATOMICS_OP_AND ),
+ JS_CFUNC_MAGIC_DEF("or", 3, js_atomics_op, ATOMICS_OP_OR ),
+ JS_CFUNC_MAGIC_DEF("sub", 3, js_atomics_op, ATOMICS_OP_SUB ),
+ JS_CFUNC_MAGIC_DEF("xor", 3, js_atomics_op, ATOMICS_OP_XOR ),
+ JS_CFUNC_MAGIC_DEF("exchange", 3, js_atomics_op, ATOMICS_OP_EXCHANGE ),
+ JS_CFUNC_MAGIC_DEF("compareExchange", 4, js_atomics_op, ATOMICS_OP_COMPARE_EXCHANGE ),
+ JS_CFUNC_MAGIC_DEF("load", 2, js_atomics_op, ATOMICS_OP_LOAD ),
+ JS_CFUNC_DEF("store", 3, js_atomics_store ),
+ JS_CFUNC_DEF("isLockFree", 1, js_atomics_isLockFree ),
+ JS_CFUNC_DEF("wait", 4, js_atomics_wait ),
+ JS_CFUNC_DEF("notify", 3, js_atomics_notify ),
+ JS_PROP_STRING_DEF("[Symbol.toStringTag]", "Atomics", JS_PROP_CONFIGURABLE ),
+};
+
+static const JSCFunctionListEntry js_atomics_obj[] = {
+ JS_OBJECT_DEF("Atomics", js_atomics_funcs, countof(js_atomics_funcs), JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE ),
+};
+
+void JS_AddIntrinsicAtomics(JSContext *ctx)
+{
+ /* add Atomics as autoinit object */
+ JS_SetPropertyFunctionList(ctx, ctx->global_obj, js_atomics_obj, countof(js_atomics_obj));
+}
+
+#endif /* CONFIG_ATOMICS */
+
+void JS_AddIntrinsicTypedArrays(JSContext *ctx)
+{
+ JSValue typed_array_base_proto, typed_array_base_func;
+ JSValueConst array_buffer_func, shared_array_buffer_func;
+ int i;
+
+ ctx->class_proto[JS_CLASS_ARRAY_BUFFER] = JS_NewObject(ctx);
+ JS_SetPropertyFunctionList(ctx, ctx->class_proto[JS_CLASS_ARRAY_BUFFER],
+ js_array_buffer_proto_funcs,
+ countof(js_array_buffer_proto_funcs));
+
+ array_buffer_func = JS_NewGlobalCConstructorOnly(ctx, "ArrayBuffer",
+ js_array_buffer_constructor, 1,
+ ctx->class_proto[JS_CLASS_ARRAY_BUFFER]);
+ JS_SetPropertyFunctionList(ctx, array_buffer_func,
+ js_array_buffer_funcs,
+ countof(js_array_buffer_funcs));
+
+ ctx->class_proto[JS_CLASS_SHARED_ARRAY_BUFFER] = JS_NewObject(ctx);
+ JS_SetPropertyFunctionList(ctx, ctx->class_proto[JS_CLASS_SHARED_ARRAY_BUFFER],
+ js_shared_array_buffer_proto_funcs,
+ countof(js_shared_array_buffer_proto_funcs));
+
+ shared_array_buffer_func = JS_NewGlobalCConstructorOnly(ctx, "SharedArrayBuffer",
+ js_shared_array_buffer_constructor, 1,
+ ctx->class_proto[JS_CLASS_SHARED_ARRAY_BUFFER]);
+ JS_SetPropertyFunctionList(ctx, shared_array_buffer_func,
+ js_shared_array_buffer_funcs,
+ countof(js_shared_array_buffer_funcs));
+
+ typed_array_base_proto = JS_NewObject(ctx);
+ JS_SetPropertyFunctionList(ctx, typed_array_base_proto,
+ js_typed_array_base_proto_funcs,
+ countof(js_typed_array_base_proto_funcs));
+
+ /* TypedArray.prototype.toString must be the same object as Array.prototype.toString */
+ JSValue obj = JS_GetProperty(ctx, ctx->class_proto[JS_CLASS_ARRAY], JS_ATOM_toString);
+ /* XXX: should use alias method in JSCFunctionListEntry */ //@@@
+ JS_DefinePropertyValue(ctx, typed_array_base_proto, JS_ATOM_toString, obj,
+ JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE);
+
+ typed_array_base_func = JS_NewCFunction(ctx, js_typed_array_base_constructor,
+ "TypedArray", 0);
+ JS_SetPropertyFunctionList(ctx, typed_array_base_func,
+ js_typed_array_base_funcs,
+ countof(js_typed_array_base_funcs));
+ JS_SetConstructor(ctx, typed_array_base_func, typed_array_base_proto);
+
+ /* Used to squelch a -Wcast-function-type warning. */
+ JSCFunctionType ft = { .generic_magic = js_typed_array_constructor };
+ for(i = JS_CLASS_UINT8C_ARRAY; i < JS_CLASS_UINT8C_ARRAY + JS_TYPED_ARRAY_COUNT; i++) {
+ JSValue func_obj;
+ char buf[ATOM_GET_STR_BUF_SIZE];
+ const char *name;
+
+ ctx->class_proto[i] = JS_NewObjectProto(ctx, typed_array_base_proto);
+ JS_DefinePropertyValueStr(ctx, ctx->class_proto[i],
+ "BYTES_PER_ELEMENT",
+ JS_NewInt32(ctx, 1 << typed_array_size_log2(i)),
+ 0);
+ name = JS_AtomGetStr(ctx, buf, sizeof(buf),
+ JS_ATOM_Uint8ClampedArray + i - JS_CLASS_UINT8C_ARRAY);
+ func_obj = JS_NewCFunction3(ctx, ft.generic,
+ name, 3, JS_CFUNC_constructor_magic, i,
+ typed_array_base_func);
+ JS_NewGlobalCConstructor2(ctx, func_obj, name, ctx->class_proto[i]);
+ JS_DefinePropertyValueStr(ctx, func_obj,
+ "BYTES_PER_ELEMENT",
+ JS_NewInt32(ctx, 1 << typed_array_size_log2(i)),
+ 0);
+ }
+ JS_FreeValue(ctx, typed_array_base_proto);
+ JS_FreeValue(ctx, typed_array_base_func);
+
+ /* DataView */
+ ctx->class_proto[JS_CLASS_DATAVIEW] = JS_NewObject(ctx);
+ JS_SetPropertyFunctionList(ctx, ctx->class_proto[JS_CLASS_DATAVIEW],
+ js_dataview_proto_funcs,
+ countof(js_dataview_proto_funcs));
+ JS_NewGlobalCConstructorOnly(ctx, "DataView",
+ js_dataview_constructor, 1,
+ ctx->class_proto[JS_CLASS_DATAVIEW]);
+ /* Atomics */
+#ifdef CONFIG_ATOMICS
+ JS_AddIntrinsicAtomics(ctx);
+#endif
+}
diff --git a/src/couch_quickjs/quickjs/quickjs.h b/src/couch_quickjs/quickjs/quickjs.h
new file mode 100644
index 0000000..7199936
--- /dev/null
+++ b/src/couch_quickjs/quickjs/quickjs.h
@@ -0,0 +1,1064 @@
+/*
+ * QuickJS Javascript Engine
+ *
+ * Copyright (c) 2017-2021 Fabrice Bellard
+ * Copyright (c) 2017-2021 Charlie Gordon
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+#ifndef QUICKJS_H
+#define QUICKJS_H
+
+#include <stdio.h>
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#if defined(__GNUC__) || defined(__clang__)
+#define js_likely(x) __builtin_expect(!!(x), 1)
+#define js_unlikely(x) __builtin_expect(!!(x), 0)
+#define js_force_inline inline __attribute__((always_inline))
+#define __js_printf_like(f, a) __attribute__((format(printf, f, a)))
+#else
+#define js_likely(x) (x)
+#define js_unlikely(x) (x)
+#define js_force_inline inline
+#define __js_printf_like(a, b)
+#endif
+
+#define JS_BOOL int
+
+typedef struct JSRuntime JSRuntime;
+typedef struct JSContext JSContext;
+typedef struct JSObject JSObject;
+typedef struct JSClass JSClass;
+typedef uint32_t JSClassID;
+typedef uint32_t JSAtom;
+
+#if INTPTR_MAX >= INT64_MAX
+#define JS_PTR64
+#define JS_PTR64_DEF(a) a
+#else
+#define JS_PTR64_DEF(a)
+#endif
+
+#ifndef JS_PTR64
+#define JS_NAN_BOXING
+#endif
+
+enum {
+ /* all tags with a reference count are negative */
+ JS_TAG_FIRST = -11, /* first negative tag */
+ JS_TAG_BIG_DECIMAL = -11,
+ JS_TAG_BIG_INT = -10,
+ JS_TAG_BIG_FLOAT = -9,
+ JS_TAG_SYMBOL = -8,
+ JS_TAG_STRING = -7,
+ JS_TAG_MODULE = -3, /* used internally */
+ JS_TAG_FUNCTION_BYTECODE = -2, /* used internally */
+ JS_TAG_OBJECT = -1,
+
+ JS_TAG_INT = 0,
+ JS_TAG_BOOL = 1,
+ JS_TAG_NULL = 2,
+ JS_TAG_UNDEFINED = 3,
+ JS_TAG_UNINITIALIZED = 4,
+ JS_TAG_CATCH_OFFSET = 5,
+ JS_TAG_EXCEPTION = 6,
+ JS_TAG_FLOAT64 = 7,
+ /* any larger tag is FLOAT64 if JS_NAN_BOXING */
+};
+
+typedef struct JSRefCountHeader {
+ int ref_count;
+} JSRefCountHeader;
+
+#define JS_FLOAT64_NAN NAN
+
+#ifdef CONFIG_CHECK_JSVALUE
+/* JSValue consistency : it is not possible to run the code in this
+ mode, but it is useful to detect simple reference counting
+ errors. It would be interesting to modify a static C analyzer to
+ handle specific annotations (clang has such annotations but only
+ for objective C) */
+typedef struct __JSValue *JSValue;
+typedef const struct __JSValue *JSValueConst;
+
+#define JS_VALUE_GET_TAG(v) (int)((uintptr_t)(v) & 0xf)
+/* same as JS_VALUE_GET_TAG, but return JS_TAG_FLOAT64 with NaN boxing */
+#define JS_VALUE_GET_NORM_TAG(v) JS_VALUE_GET_TAG(v)
+#define JS_VALUE_GET_INT(v) (int)((intptr_t)(v) >> 4)
+#define JS_VALUE_GET_BOOL(v) JS_VALUE_GET_INT(v)
+#define JS_VALUE_GET_FLOAT64(v) (double)JS_VALUE_GET_INT(v)
+#define JS_VALUE_GET_PTR(v) (void *)((intptr_t)(v) & ~0xf)
+
+#define JS_MKVAL(tag, val) (JSValue)(intptr_t)(((val) << 4) | (tag))
+#define JS_MKPTR(tag, p) (JSValue)((intptr_t)(p) | (tag))
+
+#define JS_TAG_IS_FLOAT64(tag) ((unsigned)(tag) == JS_TAG_FLOAT64)
+
+#define JS_NAN JS_MKVAL(JS_TAG_FLOAT64, 1)
+
+static inline JSValue __JS_NewFloat64(JSContext *ctx, double d)
+{
+ return JS_MKVAL(JS_TAG_FLOAT64, (int)d);
+}
+
+static inline JS_BOOL JS_VALUE_IS_NAN(JSValue v)
+{
+ return 0;
+}
+
+#elif defined(JS_NAN_BOXING)
+
+typedef uint64_t JSValue;
+
+#define JSValueConst JSValue
+
+#define JS_VALUE_GET_TAG(v) (int)((v) >> 32)
+#define JS_VALUE_GET_INT(v) (int)(v)
+#define JS_VALUE_GET_BOOL(v) (int)(v)
+#define JS_VALUE_GET_PTR(v) (void *)(intptr_t)(v)
+
+#define JS_MKVAL(tag, val) (((uint64_t)(tag) << 32) | (uint32_t)(val))
+#define JS_MKPTR(tag, ptr) (((uint64_t)(tag) << 32) | (uintptr_t)(ptr))
+
+#define JS_FLOAT64_TAG_ADDEND (0x7ff80000 - JS_TAG_FIRST + 1) /* quiet NaN encoding */
+
+static inline double JS_VALUE_GET_FLOAT64(JSValue v)
+{
+ union {
+ JSValue v;
+ double d;
+ } u;
+ u.v = v;
+ u.v += (uint64_t)JS_FLOAT64_TAG_ADDEND << 32;
+ return u.d;
+}
+
+#define JS_NAN (0x7ff8000000000000 - ((uint64_t)JS_FLOAT64_TAG_ADDEND << 32))
+
+static inline JSValue __JS_NewFloat64(JSContext *ctx, double d)
+{
+ union {
+ double d;
+ uint64_t u64;
+ } u;
+ JSValue v;
+ u.d = d;
+ /* normalize NaN */
+ if (js_unlikely((u.u64 & 0x7fffffffffffffff) > 0x7ff0000000000000))
+ v = JS_NAN;
+ else
+ v = u.u64 - ((uint64_t)JS_FLOAT64_TAG_ADDEND << 32);
+ return v;
+}
+
+#define JS_TAG_IS_FLOAT64(tag) ((unsigned)((tag) - JS_TAG_FIRST) >= (JS_TAG_FLOAT64 - JS_TAG_FIRST))
+
+/* same as JS_VALUE_GET_TAG, but return JS_TAG_FLOAT64 with NaN boxing */
+static inline int JS_VALUE_GET_NORM_TAG(JSValue v)
+{
+ uint32_t tag;
+ tag = JS_VALUE_GET_TAG(v);
+ if (JS_TAG_IS_FLOAT64(tag))
+ return JS_TAG_FLOAT64;
+ else
+ return tag;
+}
+
+static inline JS_BOOL JS_VALUE_IS_NAN(JSValue v)
+{
+ uint32_t tag;
+ tag = JS_VALUE_GET_TAG(v);
+ return tag == (JS_NAN >> 32);
+}
+
+#else /* !JS_NAN_BOXING */
+
+typedef union JSValueUnion {
+ int32_t int32;
+ double float64;
+ void *ptr;
+} JSValueUnion;
+
+typedef struct JSValue {
+ JSValueUnion u;
+ int64_t tag;
+} JSValue;
+
+#define JSValueConst JSValue
+
+#define JS_VALUE_GET_TAG(v) ((int32_t)(v).tag)
+/* same as JS_VALUE_GET_TAG, but return JS_TAG_FLOAT64 with NaN boxing */
+#define JS_VALUE_GET_NORM_TAG(v) JS_VALUE_GET_TAG(v)
+#define JS_VALUE_GET_INT(v) ((v).u.int32)
+#define JS_VALUE_GET_BOOL(v) ((v).u.int32)
+#define JS_VALUE_GET_FLOAT64(v) ((v).u.float64)
+#define JS_VALUE_GET_PTR(v) ((v).u.ptr)
+
+#define JS_MKVAL(tag, val) (JSValue){ (JSValueUnion){ .int32 = val }, tag }
+#define JS_MKPTR(tag, p) (JSValue){ (JSValueUnion){ .ptr = p }, tag }
+
+#define JS_TAG_IS_FLOAT64(tag) ((unsigned)(tag) == JS_TAG_FLOAT64)
+
+#define JS_NAN (JSValue){ .u.float64 = JS_FLOAT64_NAN, JS_TAG_FLOAT64 }
+
+static inline JSValue __JS_NewFloat64(JSContext *ctx, double d)
+{
+ JSValue v;
+ v.tag = JS_TAG_FLOAT64;
+ v.u.float64 = d;
+ return v;
+}
+
+static inline JS_BOOL JS_VALUE_IS_NAN(JSValue v)
+{
+ union {
+ double d;
+ uint64_t u64;
+ } u;
+ if (v.tag != JS_TAG_FLOAT64)
+ return 0;
+ u.d = v.u.float64;
+ return (u.u64 & 0x7fffffffffffffff) > 0x7ff0000000000000;
+}
+
+#endif /* !JS_NAN_BOXING */
+
+#define JS_VALUE_IS_BOTH_INT(v1, v2) ((JS_VALUE_GET_TAG(v1) | JS_VALUE_GET_TAG(v2)) == 0)
+#define JS_VALUE_IS_BOTH_FLOAT(v1, v2) (JS_TAG_IS_FLOAT64(JS_VALUE_GET_TAG(v1)) && JS_TAG_IS_FLOAT64(JS_VALUE_GET_TAG(v2)))
+
+#define JS_VALUE_GET_OBJ(v) ((JSObject *)JS_VALUE_GET_PTR(v))
+#define JS_VALUE_GET_STRING(v) ((JSString *)JS_VALUE_GET_PTR(v))
+#define JS_VALUE_HAS_REF_COUNT(v) ((unsigned)JS_VALUE_GET_TAG(v) >= (unsigned)JS_TAG_FIRST)
+
+/* special values */
+#define JS_NULL JS_MKVAL(JS_TAG_NULL, 0)
+#define JS_UNDEFINED JS_MKVAL(JS_TAG_UNDEFINED, 0)
+#define JS_FALSE JS_MKVAL(JS_TAG_BOOL, 0)
+#define JS_TRUE JS_MKVAL(JS_TAG_BOOL, 1)
+#define JS_EXCEPTION JS_MKVAL(JS_TAG_EXCEPTION, 0)
+#define JS_UNINITIALIZED JS_MKVAL(JS_TAG_UNINITIALIZED, 0)
+
+/* flags for object properties */
+#define JS_PROP_CONFIGURABLE (1 << 0)
+#define JS_PROP_WRITABLE (1 << 1)
+#define JS_PROP_ENUMERABLE (1 << 2)
+#define JS_PROP_C_W_E (JS_PROP_CONFIGURABLE | JS_PROP_WRITABLE | JS_PROP_ENUMERABLE)
+#define JS_PROP_LENGTH (1 << 3) /* used internally in Arrays */
+#define JS_PROP_TMASK (3 << 4) /* mask for NORMAL, GETSET, VARREF, AUTOINIT */
+#define JS_PROP_NORMAL (0 << 4)
+#define JS_PROP_GETSET (1 << 4)
+#define JS_PROP_VARREF (2 << 4) /* used internally */
+#define JS_PROP_AUTOINIT (3 << 4) /* used internally */
+
+/* flags for JS_DefineProperty */
+#define JS_PROP_HAS_SHIFT 8
+#define JS_PROP_HAS_CONFIGURABLE (1 << 8)
+#define JS_PROP_HAS_WRITABLE (1 << 9)
+#define JS_PROP_HAS_ENUMERABLE (1 << 10)
+#define JS_PROP_HAS_GET (1 << 11)
+#define JS_PROP_HAS_SET (1 << 12)
+#define JS_PROP_HAS_VALUE (1 << 13)
+
+/* throw an exception if false would be returned
+ (JS_DefineProperty/JS_SetProperty) */
+#define JS_PROP_THROW (1 << 14)
+/* throw an exception if false would be returned in strict mode
+ (JS_SetProperty) */
+#define JS_PROP_THROW_STRICT (1 << 15)
+
+#define JS_PROP_NO_ADD (1 << 16) /* internal use */
+#define JS_PROP_NO_EXOTIC (1 << 17) /* internal use */
+
+#define JS_DEFAULT_STACK_SIZE (256 * 1024)
+
+/* JS_Eval() flags */
+#define JS_EVAL_TYPE_GLOBAL (0 << 0) /* global code (default) */
+#define JS_EVAL_TYPE_MODULE (1 << 0) /* module code */
+#define JS_EVAL_TYPE_DIRECT (2 << 0) /* direct call (internal use) */
+#define JS_EVAL_TYPE_INDIRECT (3 << 0) /* indirect call (internal use) */
+#define JS_EVAL_TYPE_MASK (3 << 0)
+
+#define JS_EVAL_FLAG_STRICT (1 << 3) /* force 'strict' mode */
+#define JS_EVAL_FLAG_STRIP (1 << 4) /* force 'strip' mode */
+/* compile but do not run. The result is an object with a
+ JS_TAG_FUNCTION_BYTECODE or JS_TAG_MODULE tag. It can be executed
+ with JS_EvalFunction(). */
+#define JS_EVAL_FLAG_COMPILE_ONLY (1 << 5)
+/* don't include the stack frames before this eval in the Error() backtraces */
+#define JS_EVAL_FLAG_BACKTRACE_BARRIER (1 << 6)
+/* allow top-level await in normal script. JS_Eval() returns a
+ promise. Only allowed with JS_EVAL_TYPE_GLOBAL */
+#define JS_EVAL_FLAG_ASYNC (1 << 7)
+
+typedef JSValue JSCFunction(JSContext *ctx, JSValueConst this_val, int argc, JSValueConst *argv);
+typedef JSValue JSCFunctionMagic(JSContext *ctx, JSValueConst this_val, int argc, JSValueConst *argv, int magic);
+typedef JSValue JSCFunctionData(JSContext *ctx, JSValueConst this_val, int argc, JSValueConst *argv, int magic, JSValue *func_data);
+
+typedef struct JSMallocState {
+ size_t malloc_count;
+ size_t malloc_size;
+ size_t malloc_limit;
+ void *opaque; /* user opaque */
+} JSMallocState;
+
+typedef struct JSMallocFunctions {
+ void *(*js_malloc)(JSMallocState *s, size_t size);
+ void (*js_free)(JSMallocState *s, void *ptr);
+ void *(*js_realloc)(JSMallocState *s, void *ptr, size_t size);
+ size_t (*js_malloc_usable_size)(const void *ptr);
+} JSMallocFunctions;
+
+typedef struct JSGCObjectHeader JSGCObjectHeader;
+
+JSRuntime *JS_NewRuntime(void);
+/* info lifetime must exceed that of rt */
+void JS_SetRuntimeInfo(JSRuntime *rt, const char *info);
+void JS_SetMemoryLimit(JSRuntime *rt, size_t limit);
+void JS_SetGCThreshold(JSRuntime *rt, size_t gc_threshold);
+/* use 0 to disable maximum stack size check */
+void JS_SetMaxStackSize(JSRuntime *rt, size_t stack_size);
+/* should be called when changing thread to update the stack top value
+ used to check stack overflow. */
+void JS_UpdateStackTop(JSRuntime *rt);
+JSRuntime *JS_NewRuntime2(const JSMallocFunctions *mf, void *opaque);
+void JS_FreeRuntime(JSRuntime *rt);
+void *JS_GetRuntimeOpaque(JSRuntime *rt);
+void JS_SetRuntimeOpaque(JSRuntime *rt, void *opaque);
+typedef void JS_MarkFunc(JSRuntime *rt, JSGCObjectHeader *gp);
+void JS_MarkValue(JSRuntime *rt, JSValueConst val, JS_MarkFunc *mark_func);
+void JS_RunGC(JSRuntime *rt);
+JS_BOOL JS_IsLiveObject(JSRuntime *rt, JSValueConst obj);
+
+JSContext *JS_NewContext(JSRuntime *rt);
+void JS_FreeContext(JSContext *s);
+JSContext *JS_DupContext(JSContext *ctx);
+void *JS_GetContextOpaque(JSContext *ctx);
+void JS_SetContextOpaque(JSContext *ctx, void *opaque);
+JSRuntime *JS_GetRuntime(JSContext *ctx);
+void JS_SetClassProto(JSContext *ctx, JSClassID class_id, JSValue obj);
+JSValue JS_GetClassProto(JSContext *ctx, JSClassID class_id);
+
+/* the following functions are used to select the intrinsic object to
+ save memory */
+JSContext *JS_NewContextRaw(JSRuntime *rt);
+void JS_AddIntrinsicBaseObjects(JSContext *ctx);
+void JS_AddIntrinsicDate(JSContext *ctx);
+void JS_AddIntrinsicEval(JSContext *ctx);
+void JS_AddIntrinsicStringNormalize(JSContext *ctx);
+void JS_AddIntrinsicRegExpCompiler(JSContext *ctx);
+void JS_AddIntrinsicRegExp(JSContext *ctx);
+void JS_AddIntrinsicJSON(JSContext *ctx);
+void JS_AddIntrinsicProxy(JSContext *ctx);
+void JS_AddIntrinsicMapSet(JSContext *ctx);
+void JS_AddIntrinsicTypedArrays(JSContext *ctx);
+void JS_AddIntrinsicPromise(JSContext *ctx);
+void JS_AddIntrinsicBigInt(JSContext *ctx);
+void JS_AddIntrinsicBigFloat(JSContext *ctx);
+void JS_AddIntrinsicBigDecimal(JSContext *ctx);
+/* enable operator overloading */
+void JS_AddIntrinsicOperators(JSContext *ctx);
+/* enable "use math" */
+void JS_EnableBignumExt(JSContext *ctx, JS_BOOL enable);
+
+JSValue js_string_codePointRange(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv);
+
+void *js_malloc_rt(JSRuntime *rt, size_t size);
+void js_free_rt(JSRuntime *rt, void *ptr);
+void *js_realloc_rt(JSRuntime *rt, void *ptr, size_t size);
+size_t js_malloc_usable_size_rt(JSRuntime *rt, const void *ptr);
+void *js_mallocz_rt(JSRuntime *rt, size_t size);
+
+void *js_malloc(JSContext *ctx, size_t size);
+void js_free(JSContext *ctx, void *ptr);
+void *js_realloc(JSContext *ctx, void *ptr, size_t size);
+size_t js_malloc_usable_size(JSContext *ctx, const void *ptr);
+void *js_realloc2(JSContext *ctx, void *ptr, size_t size, size_t *pslack);
+void *js_mallocz(JSContext *ctx, size_t size);
+char *js_strdup(JSContext *ctx, const char *str);
+char *js_strndup(JSContext *ctx, const char *s, size_t n);
+
+typedef struct JSMemoryUsage {
+ int64_t malloc_size, malloc_limit, memory_used_size;
+ int64_t malloc_count;
+ int64_t memory_used_count;
+ int64_t atom_count, atom_size;
+ int64_t str_count, str_size;
+ int64_t obj_count, obj_size;
+ int64_t prop_count, prop_size;
+ int64_t shape_count, shape_size;
+ int64_t js_func_count, js_func_size, js_func_code_size;
+ int64_t js_func_pc2line_count, js_func_pc2line_size;
+ int64_t c_func_count, array_count;
+ int64_t fast_array_count, fast_array_elements;
+ int64_t binary_object_count, binary_object_size;
+} JSMemoryUsage;
+
+void JS_ComputeMemoryUsage(JSRuntime *rt, JSMemoryUsage *s);
+void JS_DumpMemoryUsage(FILE *fp, const JSMemoryUsage *s, JSRuntime *rt);
+
+/* atom support */
+#define JS_ATOM_NULL 0
+
+JSAtom JS_NewAtomLen(JSContext *ctx, const char *str, size_t len);
+JSAtom JS_NewAtom(JSContext *ctx, const char *str);
+JSAtom JS_NewAtomUInt32(JSContext *ctx, uint32_t n);
+JSAtom JS_DupAtom(JSContext *ctx, JSAtom v);
+void JS_FreeAtom(JSContext *ctx, JSAtom v);
+void JS_FreeAtomRT(JSRuntime *rt, JSAtom v);
+JSValue JS_AtomToValue(JSContext *ctx, JSAtom atom);
+JSValue JS_AtomToString(JSContext *ctx, JSAtom atom);
+const char *JS_AtomToCString(JSContext *ctx, JSAtom atom);
+JSAtom JS_ValueToAtom(JSContext *ctx, JSValueConst val);
+
+/* object class support */
+
+typedef struct JSPropertyEnum {
+ JS_BOOL is_enumerable;
+ JSAtom atom;
+} JSPropertyEnum;
+
+typedef struct JSPropertyDescriptor {
+ int flags;
+ JSValue value;
+ JSValue getter;
+ JSValue setter;
+} JSPropertyDescriptor;
+
+typedef struct JSClassExoticMethods {
+ /* Return -1 if exception (can only happen in case of Proxy object),
+ FALSE if the property does not exists, TRUE if it exists. If 1 is
+ returned, the property descriptor 'desc' is filled if != NULL. */
+ int (*get_own_property)(JSContext *ctx, JSPropertyDescriptor *desc,
+ JSValueConst obj, JSAtom prop);
+ /* '*ptab' should hold the '*plen' property keys. Return 0 if OK,
+ -1 if exception. The 'is_enumerable' field is ignored.
+ */
+ int (*get_own_property_names)(JSContext *ctx, JSPropertyEnum **ptab,
+ uint32_t *plen,
+ JSValueConst obj);
+ /* return < 0 if exception, or TRUE/FALSE */
+ int (*delete_property)(JSContext *ctx, JSValueConst obj, JSAtom prop);
+ /* return < 0 if exception or TRUE/FALSE */
+ int (*define_own_property)(JSContext *ctx, JSValueConst this_obj,
+ JSAtom prop, JSValueConst val,
+ JSValueConst getter, JSValueConst setter,
+ int flags);
+ /* The following methods can be emulated with the previous ones,
+ so they are usually not needed */
+ /* return < 0 if exception or TRUE/FALSE */
+ int (*has_property)(JSContext *ctx, JSValueConst obj, JSAtom atom);
+ JSValue (*get_property)(JSContext *ctx, JSValueConst obj, JSAtom atom,
+ JSValueConst receiver);
+ /* return < 0 if exception or TRUE/FALSE */
+ int (*set_property)(JSContext *ctx, JSValueConst obj, JSAtom atom,
+ JSValueConst value, JSValueConst receiver, int flags);
+} JSClassExoticMethods;
+
+typedef void JSClassFinalizer(JSRuntime *rt, JSValue val);
+typedef void JSClassGCMark(JSRuntime *rt, JSValueConst val,
+ JS_MarkFunc *mark_func);
+#define JS_CALL_FLAG_CONSTRUCTOR (1 << 0)
+typedef JSValue JSClassCall(JSContext *ctx, JSValueConst func_obj,
+ JSValueConst this_val, int argc, JSValueConst *argv,
+ int flags);
+
+typedef struct JSClassDef {
+ const char *class_name;
+ JSClassFinalizer *finalizer;
+ JSClassGCMark *gc_mark;
+ /* if call != NULL, the object is a function. If (flags &
+ JS_CALL_FLAG_CONSTRUCTOR) != 0, the function is called as a
+ constructor. In this case, 'this_val' is new.target. A
+ constructor call only happens if the object constructor bit is
+ set (see JS_SetConstructorBit()). */
+ JSClassCall *call;
+ /* XXX: suppress this indirection ? It is here only to save memory
+ because only a few classes need these methods */
+ JSClassExoticMethods *exotic;
+} JSClassDef;
+
+#define JS_INVALID_CLASS_ID 0
+JSClassID JS_NewClassID(JSClassID *pclass_id);
+/* Returns the class ID if `v` is an object, otherwise returns JS_INVALID_CLASS_ID. */
+JSClassID JS_GetClassID(JSValue v);
+int JS_NewClass(JSRuntime *rt, JSClassID class_id, const JSClassDef *class_def);
+int JS_IsRegisteredClass(JSRuntime *rt, JSClassID class_id);
+
+/* value handling */
+
+static js_force_inline JSValue JS_NewBool(JSContext *ctx, JS_BOOL val)
+{
+ return JS_MKVAL(JS_TAG_BOOL, (val != 0));
+}
+
+static js_force_inline JSValue JS_NewInt32(JSContext *ctx, int32_t val)
+{
+ return JS_MKVAL(JS_TAG_INT, val);
+}
+
+static js_force_inline JSValue JS_NewCatchOffset(JSContext *ctx, int32_t val)
+{
+ return JS_MKVAL(JS_TAG_CATCH_OFFSET, val);
+}
+
+static js_force_inline JSValue JS_NewInt64(JSContext *ctx, int64_t val)
+{
+ JSValue v;
+ if (val == (int32_t)val) {
+ v = JS_NewInt32(ctx, val);
+ } else {
+ v = __JS_NewFloat64(ctx, val);
+ }
+ return v;
+}
+
+static js_force_inline JSValue JS_NewUint32(JSContext *ctx, uint32_t val)
+{
+ JSValue v;
+ if (val <= 0x7fffffff) {
+ v = JS_NewInt32(ctx, val);
+ } else {
+ v = __JS_NewFloat64(ctx, val);
+ }
+ return v;
+}
+
+JSValue JS_NewBigInt64(JSContext *ctx, int64_t v);
+JSValue JS_NewBigUint64(JSContext *ctx, uint64_t v);
+
+static js_force_inline JSValue JS_NewFloat64(JSContext *ctx, double d)
+{
+ int32_t val;
+ union {
+ double d;
+ uint64_t u;
+ } u, t;
+ if (d >= INT32_MIN && d <= INT32_MAX) {
+ u.d = d;
+ val = (int32_t)d;
+ t.d = val;
+ /* -0 cannot be represented as integer, so we compare the bit
+ representation */
+ if (u.u == t.u)
+ return JS_MKVAL(JS_TAG_INT, val);
+ }
+ return __JS_NewFloat64(ctx, d);
+}
+
+static inline JS_BOOL JS_IsNumber(JSValueConst v)
+{
+ int tag = JS_VALUE_GET_TAG(v);
+ return tag == JS_TAG_INT || JS_TAG_IS_FLOAT64(tag);
+}
+
+static inline JS_BOOL JS_IsBigInt(JSContext *ctx, JSValueConst v)
+{
+ int tag = JS_VALUE_GET_TAG(v);
+ return tag == JS_TAG_BIG_INT;
+}
+
+static inline JS_BOOL JS_IsBigFloat(JSValueConst v)
+{
+ int tag = JS_VALUE_GET_TAG(v);
+ return tag == JS_TAG_BIG_FLOAT;
+}
+
+static inline JS_BOOL JS_IsBigDecimal(JSValueConst v)
+{
+ int tag = JS_VALUE_GET_TAG(v);
+ return tag == JS_TAG_BIG_DECIMAL;
+}
+
+static inline JS_BOOL JS_IsBool(JSValueConst v)
+{
+ return JS_VALUE_GET_TAG(v) == JS_TAG_BOOL;
+}
+
+static inline JS_BOOL JS_IsNull(JSValueConst v)
+{
+ return JS_VALUE_GET_TAG(v) == JS_TAG_NULL;
+}
+
+static inline JS_BOOL JS_IsUndefined(JSValueConst v)
+{
+ return JS_VALUE_GET_TAG(v) == JS_TAG_UNDEFINED;
+}
+
+static inline JS_BOOL JS_IsException(JSValueConst v)
+{
+ return js_unlikely(JS_VALUE_GET_TAG(v) == JS_TAG_EXCEPTION);
+}
+
+static inline JS_BOOL JS_IsUninitialized(JSValueConst v)
+{
+ return js_unlikely(JS_VALUE_GET_TAG(v) == JS_TAG_UNINITIALIZED);
+}
+
+static inline JS_BOOL JS_IsString(JSValueConst v)
+{
+ return JS_VALUE_GET_TAG(v) == JS_TAG_STRING;
+}
+
+static inline JS_BOOL JS_IsSymbol(JSValueConst v)
+{
+ return JS_VALUE_GET_TAG(v) == JS_TAG_SYMBOL;
+}
+
+static inline JS_BOOL JS_IsObject(JSValueConst v)
+{
+ return JS_VALUE_GET_TAG(v) == JS_TAG_OBJECT;
+}
+
+JSValue JS_Throw(JSContext *ctx, JSValue obj);
+JSValue JS_GetException(JSContext *ctx);
+JS_BOOL JS_IsError(JSContext *ctx, JSValueConst val);
+void JS_ResetUncatchableError(JSContext *ctx);
+JSValue JS_NewError(JSContext *ctx);
+JSValue __js_printf_like(2, 3) JS_ThrowSyntaxError(JSContext *ctx, const char *fmt, ...);
+JSValue __js_printf_like(2, 3) JS_ThrowTypeError(JSContext *ctx, const char *fmt, ...);
+JSValue __js_printf_like(2, 3) JS_ThrowReferenceError(JSContext *ctx, const char *fmt, ...);
+JSValue __js_printf_like(2, 3) JS_ThrowRangeError(JSContext *ctx, const char *fmt, ...);
+JSValue __js_printf_like(2, 3) JS_ThrowInternalError(JSContext *ctx, const char *fmt, ...);
+JSValue JS_ThrowOutOfMemory(JSContext *ctx);
+
+void __JS_FreeValue(JSContext *ctx, JSValue v);
+static inline void JS_FreeValue(JSContext *ctx, JSValue v)
+{
+ if (JS_VALUE_HAS_REF_COUNT(v)) {
+ JSRefCountHeader *p = (JSRefCountHeader *)JS_VALUE_GET_PTR(v);
+ if (--p->ref_count <= 0) {
+ __JS_FreeValue(ctx, v);
+ }
+ }
+}
+void __JS_FreeValueRT(JSRuntime *rt, JSValue v);
+static inline void JS_FreeValueRT(JSRuntime *rt, JSValue v)
+{
+ if (JS_VALUE_HAS_REF_COUNT(v)) {
+ JSRefCountHeader *p = (JSRefCountHeader *)JS_VALUE_GET_PTR(v);
+ if (--p->ref_count <= 0) {
+ __JS_FreeValueRT(rt, v);
+ }
+ }
+}
+
+static inline JSValue JS_DupValue(JSContext *ctx, JSValueConst v)
+{
+ if (JS_VALUE_HAS_REF_COUNT(v)) {
+ JSRefCountHeader *p = (JSRefCountHeader *)JS_VALUE_GET_PTR(v);
+ p->ref_count++;
+ }
+ return (JSValue)v;
+}
+
+static inline JSValue JS_DupValueRT(JSRuntime *rt, JSValueConst v)
+{
+ if (JS_VALUE_HAS_REF_COUNT(v)) {
+ JSRefCountHeader *p = (JSRefCountHeader *)JS_VALUE_GET_PTR(v);
+ p->ref_count++;
+ }
+ return (JSValue)v;
+}
+
+int JS_ToBool(JSContext *ctx, JSValueConst val); /* return -1 for JS_EXCEPTION */
+int JS_ToInt32(JSContext *ctx, int32_t *pres, JSValueConst val);
+static inline int JS_ToUint32(JSContext *ctx, uint32_t *pres, JSValueConst val)
+{
+ return JS_ToInt32(ctx, (int32_t*)pres, val);
+}
+int JS_ToInt64(JSContext *ctx, int64_t *pres, JSValueConst val);
+int JS_ToIndex(JSContext *ctx, uint64_t *plen, JSValueConst val);
+int JS_ToFloat64(JSContext *ctx, double *pres, JSValueConst val);
+/* return an exception if 'val' is a Number */
+int JS_ToBigInt64(JSContext *ctx, int64_t *pres, JSValueConst val);
+/* same as JS_ToInt64() but allow BigInt */
+int JS_ToInt64Ext(JSContext *ctx, int64_t *pres, JSValueConst val);
+
+JSValue JS_NewStringLen(JSContext *ctx, const char *str1, size_t len1);
+JSValue JS_NewString(JSContext *ctx, const char *str);
+JSValue JS_NewAtomString(JSContext *ctx, const char *str);
+JSValue JS_ToString(JSContext *ctx, JSValueConst val);
+JSValue JS_ToPropertyKey(JSContext *ctx, JSValueConst val);
+const char *JS_ToCStringLen2(JSContext *ctx, size_t *plen, JSValueConst val1, JS_BOOL cesu8);
+static inline const char *JS_ToCStringLen(JSContext *ctx, size_t *plen, JSValueConst val1)
+{
+ return JS_ToCStringLen2(ctx, plen, val1, 0);
+}
+static inline const char *JS_ToCString(JSContext *ctx, JSValueConst val1)
+{
+ return JS_ToCStringLen2(ctx, NULL, val1, 0);
+}
+void JS_FreeCString(JSContext *ctx, const char *ptr);
+
+JSValue JS_NewObjectProtoClass(JSContext *ctx, JSValueConst proto, JSClassID class_id);
+JSValue JS_NewObjectClass(JSContext *ctx, int class_id);
+JSValue JS_NewObjectProto(JSContext *ctx, JSValueConst proto);
+JSValue JS_NewObject(JSContext *ctx);
+
+JS_BOOL JS_IsFunction(JSContext* ctx, JSValueConst val);
+JS_BOOL JS_IsConstructor(JSContext* ctx, JSValueConst val);
+JS_BOOL JS_SetConstructorBit(JSContext *ctx, JSValueConst func_obj, JS_BOOL val);
+
+JSValue JS_NewArray(JSContext *ctx);
+int JS_IsArray(JSContext *ctx, JSValueConst val);
+
+JSValue JS_NewDate(JSContext *ctx, double epoch_ms);
+
+JSValue JS_GetPropertyInternal(JSContext *ctx, JSValueConst obj,
+ JSAtom prop, JSValueConst receiver,
+ JS_BOOL throw_ref_error);
+static js_force_inline JSValue JS_GetProperty(JSContext *ctx, JSValueConst this_obj,
+ JSAtom prop)
+{
+ return JS_GetPropertyInternal(ctx, this_obj, prop, this_obj, 0);
+}
+JSValue JS_GetPropertyStr(JSContext *ctx, JSValueConst this_obj,
+ const char *prop);
+JSValue JS_GetPropertyUint32(JSContext *ctx, JSValueConst this_obj,
+ uint32_t idx);
+
+int JS_SetPropertyInternal(JSContext *ctx, JSValueConst obj,
+ JSAtom prop, JSValue val, JSValueConst this_obj,
+ int flags);
+static inline int JS_SetProperty(JSContext *ctx, JSValueConst this_obj,
+ JSAtom prop, JSValue val)
+{
+ return JS_SetPropertyInternal(ctx, this_obj, prop, val, this_obj, JS_PROP_THROW);
+}
+int JS_SetPropertyUint32(JSContext *ctx, JSValueConst this_obj,
+ uint32_t idx, JSValue val);
+int JS_SetPropertyInt64(JSContext *ctx, JSValueConst this_obj,
+ int64_t idx, JSValue val);
+int JS_SetPropertyStr(JSContext *ctx, JSValueConst this_obj,
+ const char *prop, JSValue val);
+int JS_HasProperty(JSContext *ctx, JSValueConst this_obj, JSAtom prop);
+int JS_IsExtensible(JSContext *ctx, JSValueConst obj);
+int JS_PreventExtensions(JSContext *ctx, JSValueConst obj);
+int JS_DeleteProperty(JSContext *ctx, JSValueConst obj, JSAtom prop, int flags);
+int JS_SetPrototype(JSContext *ctx, JSValueConst obj, JSValueConst proto_val);
+JSValue JS_GetPrototype(JSContext *ctx, JSValueConst val);
+
+#define JS_GPN_STRING_MASK (1 << 0)
+#define JS_GPN_SYMBOL_MASK (1 << 1)
+#define JS_GPN_PRIVATE_MASK (1 << 2)
+/* only include the enumerable properties */
+#define JS_GPN_ENUM_ONLY (1 << 4)
+/* set theJSPropertyEnum.is_enumerable field */
+#define JS_GPN_SET_ENUM (1 << 5)
+
+int JS_GetOwnPropertyNames(JSContext *ctx, JSPropertyEnum **ptab,
+ uint32_t *plen, JSValueConst obj, int flags);
+int JS_GetOwnProperty(JSContext *ctx, JSPropertyDescriptor *desc,
+ JSValueConst obj, JSAtom prop);
+
+JSValue JS_Call(JSContext *ctx, JSValueConst func_obj, JSValueConst this_obj,
+ int argc, JSValueConst *argv);
+JSValue JS_Invoke(JSContext *ctx, JSValueConst this_val, JSAtom atom,
+ int argc, JSValueConst *argv);
+JSValue JS_CallConstructor(JSContext *ctx, JSValueConst func_obj,
+ int argc, JSValueConst *argv);
+JSValue JS_CallConstructor2(JSContext *ctx, JSValueConst func_obj,
+ JSValueConst new_target,
+ int argc, JSValueConst *argv);
+JS_BOOL JS_DetectModule(const char *input, size_t input_len);
+/* 'input' must be zero terminated i.e. input[input_len] = '\0'. */
+JSValue JS_Eval(JSContext *ctx, const char *input, size_t input_len,
+ const char *filename, int eval_flags);
+/* same as JS_Eval() but with an explicit 'this_obj' parameter */
+JSValue JS_EvalThis(JSContext *ctx, JSValueConst this_obj,
+ const char *input, size_t input_len,
+ const char *filename, int eval_flags);
+JSValue JS_GetGlobalObject(JSContext *ctx);
+int JS_IsInstanceOf(JSContext *ctx, JSValueConst val, JSValueConst obj);
+int JS_DefineProperty(JSContext *ctx, JSValueConst this_obj,
+ JSAtom prop, JSValueConst val,
+ JSValueConst getter, JSValueConst setter, int flags);
+int JS_DefinePropertyValue(JSContext *ctx, JSValueConst this_obj,
+ JSAtom prop, JSValue val, int flags);
+int JS_DefinePropertyValueUint32(JSContext *ctx, JSValueConst this_obj,
+ uint32_t idx, JSValue val, int flags);
+int JS_DefinePropertyValueStr(JSContext *ctx, JSValueConst this_obj,
+ const char *prop, JSValue val, int flags);
+int JS_DefinePropertyGetSet(JSContext *ctx, JSValueConst this_obj,
+ JSAtom prop, JSValue getter, JSValue setter,
+ int flags);
+void JS_SetOpaque(JSValue obj, void *opaque);
+void *JS_GetOpaque(JSValueConst obj, JSClassID class_id);
+void *JS_GetOpaque2(JSContext *ctx, JSValueConst obj, JSClassID class_id);
+
+/* 'buf' must be zero terminated i.e. buf[buf_len] = '\0'. */
+JSValue JS_ParseJSON(JSContext *ctx, const char *buf, size_t buf_len,
+ const char *filename);
+#define JS_PARSE_JSON_EXT (1 << 0) /* allow extended JSON */
+JSValue JS_ParseJSON2(JSContext *ctx, const char *buf, size_t buf_len,
+ const char *filename, int flags);
+JSValue JS_JSONStringify(JSContext *ctx, JSValueConst obj,
+ JSValueConst replacer, JSValueConst space0);
+
+typedef void JSFreeArrayBufferDataFunc(JSRuntime *rt, void *opaque, void *ptr);
+JSValue JS_NewArrayBuffer(JSContext *ctx, uint8_t *buf, size_t len,
+ JSFreeArrayBufferDataFunc *free_func, void *opaque,
+ JS_BOOL is_shared);
+JSValue JS_NewArrayBufferCopy(JSContext *ctx, const uint8_t *buf, size_t len);
+void JS_DetachArrayBuffer(JSContext *ctx, JSValueConst obj);
+uint8_t *JS_GetArrayBuffer(JSContext *ctx, size_t *psize, JSValueConst obj);
+JSValue JS_GetTypedArrayBuffer(JSContext *ctx, JSValueConst obj,
+ size_t *pbyte_offset,
+ size_t *pbyte_length,
+ size_t *pbytes_per_element);
+typedef struct {
+ void *(*sab_alloc)(void *opaque, size_t size);
+ void (*sab_free)(void *opaque, void *ptr);
+ void (*sab_dup)(void *opaque, void *ptr);
+ void *sab_opaque;
+} JSSharedArrayBufferFunctions;
+void JS_SetSharedArrayBufferFunctions(JSRuntime *rt,
+ const JSSharedArrayBufferFunctions *sf);
+
+typedef enum JSPromiseStateEnum {
+ JS_PROMISE_PENDING,
+ JS_PROMISE_FULFILLED,
+ JS_PROMISE_REJECTED,
+} JSPromiseStateEnum;
+
+JSValue JS_NewPromiseCapability(JSContext *ctx, JSValue *resolving_funcs);
+JSPromiseStateEnum JS_PromiseState(JSContext *ctx, JSValue promise);
+JSValue JS_PromiseResult(JSContext *ctx, JSValue promise);
+
+/* is_handled = TRUE means that the rejection is handled */
+typedef void JSHostPromiseRejectionTracker(JSContext *ctx, JSValueConst promise,
+ JSValueConst reason,
+ JS_BOOL is_handled, void *opaque);
+void JS_SetHostPromiseRejectionTracker(JSRuntime *rt, JSHostPromiseRejectionTracker *cb, void *opaque);
+
+/* return != 0 if the JS code needs to be interrupted */
+typedef int JSInterruptHandler(JSRuntime *rt, void *opaque);
+void JS_SetInterruptHandler(JSRuntime *rt, JSInterruptHandler *cb, void *opaque);
+/* if can_block is TRUE, Atomics.wait() can be used */
+void JS_SetCanBlock(JSRuntime *rt, JS_BOOL can_block);
+/* set the [IsHTMLDDA] internal slot */
+void JS_SetIsHTMLDDA(JSContext *ctx, JSValueConst obj);
+
+typedef struct JSModuleDef JSModuleDef;
+
+/* return the module specifier (allocated with js_malloc()) or NULL if
+ exception */
+typedef char *JSModuleNormalizeFunc(JSContext *ctx,
+ const char *module_base_name,
+ const char *module_name, void *opaque);
+typedef JSModuleDef *JSModuleLoaderFunc(JSContext *ctx,
+ const char *module_name, void *opaque);
+
+/* module_normalize = NULL is allowed and invokes the default module
+ filename normalizer */
+void JS_SetModuleLoaderFunc(JSRuntime *rt,
+ JSModuleNormalizeFunc *module_normalize,
+ JSModuleLoaderFunc *module_loader, void *opaque);
+/* return the import.meta object of a module */
+JSValue JS_GetImportMeta(JSContext *ctx, JSModuleDef *m);
+JSAtom JS_GetModuleName(JSContext *ctx, JSModuleDef *m);
+JSValue JS_GetModuleNamespace(JSContext *ctx, JSModuleDef *m);
+
+/* JS Job support */
+
+typedef JSValue JSJobFunc(JSContext *ctx, int argc, JSValueConst *argv);
+int JS_EnqueueJob(JSContext *ctx, JSJobFunc *job_func, int argc, JSValueConst *argv);
+
+JS_BOOL JS_IsJobPending(JSRuntime *rt);
+int JS_ExecutePendingJob(JSRuntime *rt, JSContext **pctx);
+
+/* Object Writer/Reader (currently only used to handle precompiled code) */
+#define JS_WRITE_OBJ_BYTECODE (1 << 0) /* allow function/module */
+#define JS_WRITE_OBJ_BSWAP (1 << 1) /* byte swapped output */
+#define JS_WRITE_OBJ_SAB (1 << 2) /* allow SharedArrayBuffer */
+#define JS_WRITE_OBJ_REFERENCE (1 << 3) /* allow object references to
+ encode arbitrary object
+ graph */
+uint8_t *JS_WriteObject(JSContext *ctx, size_t *psize, JSValueConst obj,
+ int flags);
+uint8_t *JS_WriteObject2(JSContext *ctx, size_t *psize, JSValueConst obj,
+ int flags, uint8_t ***psab_tab, size_t *psab_tab_len);
+
+#define JS_READ_OBJ_BYTECODE (1 << 0) /* allow function/module */
+#define JS_READ_OBJ_ROM_DATA (1 << 1) /* avoid duplicating 'buf' data */
+#define JS_READ_OBJ_SAB (1 << 2) /* allow SharedArrayBuffer */
+#define JS_READ_OBJ_REFERENCE (1 << 3) /* allow object references */
+JSValue JS_ReadObject(JSContext *ctx, const uint8_t *buf, size_t buf_len,
+ int flags);
+/* instantiate and evaluate a bytecode function. Only used when
+ reading a script or module with JS_ReadObject() */
+JSValue JS_EvalFunction(JSContext *ctx, JSValue fun_obj);
+/* load the dependencies of the module 'obj'. Useful when JS_ReadObject()
+ returns a module. */
+int JS_ResolveModule(JSContext *ctx, JSValueConst obj);
+
+/* only exported for os.Worker() */
+JSAtom JS_GetScriptOrModuleName(JSContext *ctx, int n_stack_levels);
+/* only exported for os.Worker() */
+JSValue JS_LoadModule(JSContext *ctx, const char *basename,
+ const char *filename);
+
+/* C function definition */
+typedef enum JSCFunctionEnum { /* XXX: should rename for namespace isolation */
+ JS_CFUNC_generic,
+ JS_CFUNC_generic_magic,
+ JS_CFUNC_constructor,
+ JS_CFUNC_constructor_magic,
+ JS_CFUNC_constructor_or_func,
+ JS_CFUNC_constructor_or_func_magic,
+ JS_CFUNC_f_f,
+ JS_CFUNC_f_f_f,
+ JS_CFUNC_getter,
+ JS_CFUNC_setter,
+ JS_CFUNC_getter_magic,
+ JS_CFUNC_setter_magic,
+ JS_CFUNC_iterator_next,
+} JSCFunctionEnum;
+
+typedef union JSCFunctionType {
+ JSCFunction *generic;
+ JSValue (*generic_magic)(JSContext *ctx, JSValueConst this_val, int argc, JSValueConst *argv, int magic);
+ JSCFunction *constructor;
+ JSValue (*constructor_magic)(JSContext *ctx, JSValueConst new_target, int argc, JSValueConst *argv, int magic);
+ JSCFunction *constructor_or_func;
+ double (*f_f)(double);
+ double (*f_f_f)(double, double);
+ JSValue (*getter)(JSContext *ctx, JSValueConst this_val);
+ JSValue (*setter)(JSContext *ctx, JSValueConst this_val, JSValueConst val);
+ JSValue (*getter_magic)(JSContext *ctx, JSValueConst this_val, int magic);
+ JSValue (*setter_magic)(JSContext *ctx, JSValueConst this_val, JSValueConst val, int magic);
+ JSValue (*iterator_next)(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv, int *pdone, int magic);
+} JSCFunctionType;
+
+JSValue JS_NewCFunction2(JSContext *ctx, JSCFunction *func,
+ const char *name,
+ int length, JSCFunctionEnum cproto, int magic);
+JSValue JS_NewCFunctionData(JSContext *ctx, JSCFunctionData *func,
+ int length, int magic, int data_len,
+ JSValueConst *data);
+
+static inline JSValue JS_NewCFunction(JSContext *ctx, JSCFunction *func, const char *name,
+ int length)
+{
+ return JS_NewCFunction2(ctx, func, name, length, JS_CFUNC_generic, 0);
+}
+
+static inline JSValue JS_NewCFunctionMagic(JSContext *ctx, JSCFunctionMagic *func,
+ const char *name,
+ int length, JSCFunctionEnum cproto, int magic)
+{
+ return JS_NewCFunction2(ctx, (JSCFunction *)func, name, length, cproto, magic);
+}
+void JS_SetConstructor(JSContext *ctx, JSValueConst func_obj,
+ JSValueConst proto);
+
+/* C property definition */
+
+typedef struct JSCFunctionListEntry {
+ const char *name;
+ uint8_t prop_flags;
+ uint8_t def_type;
+ int16_t magic;
+ union {
+ struct {
+ uint8_t length; /* XXX: should move outside union */
+ uint8_t cproto; /* XXX: should move outside union */
+ JSCFunctionType cfunc;
+ } func;
+ struct {
+ JSCFunctionType get;
+ JSCFunctionType set;
+ } getset;
+ struct {
+ const char *name;
+ int base;
+ } alias;
+ struct {
+ const struct JSCFunctionListEntry *tab;
+ int len;
+ } prop_list;
+ const char *str;
+ int32_t i32;
+ int64_t i64;
+ double f64;
+ } u;
+} JSCFunctionListEntry;
+
+#define JS_DEF_CFUNC 0
+#define JS_DEF_CGETSET 1
+#define JS_DEF_CGETSET_MAGIC 2
+#define JS_DEF_PROP_STRING 3
+#define JS_DEF_PROP_INT32 4
+#define JS_DEF_PROP_INT64 5
+#define JS_DEF_PROP_DOUBLE 6
+#define JS_DEF_PROP_UNDEFINED 7
+#define JS_DEF_OBJECT 8
+#define JS_DEF_ALIAS 9
+
+/* Note: c++ does not like nested designators */
+#define JS_CFUNC_DEF(name, length, func1) { name, JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE, JS_DEF_CFUNC, 0, .u = { .func = { length, JS_CFUNC_generic, { .generic = func1 } } } }
+#define JS_CFUNC_MAGIC_DEF(name, length, func1, magic) { name, JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE, JS_DEF_CFUNC, magic, .u = { .func = { length, JS_CFUNC_generic_magic, { .generic_magic = func1 } } } }
+#define JS_CFUNC_SPECIAL_DEF(name, length, cproto, func1) { name, JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE, JS_DEF_CFUNC, 0, .u = { .func = { length, JS_CFUNC_ ## cproto, { .cproto = func1 } } } }
+#define JS_ITERATOR_NEXT_DEF(name, length, func1, magic) { name, JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE, JS_DEF_CFUNC, magic, .u = { .func = { length, JS_CFUNC_iterator_next, { .iterator_next = func1 } } } }
+#define JS_CGETSET_DEF(name, fgetter, fsetter) { name, JS_PROP_CONFIGURABLE, JS_DEF_CGETSET, 0, .u = { .getset = { .get = { .getter = fgetter }, .set = { .setter = fsetter } } } }
+#define JS_CGETSET_MAGIC_DEF(name, fgetter, fsetter, magic) { name, JS_PROP_CONFIGURABLE, JS_DEF_CGETSET_MAGIC, magic, .u = { .getset = { .get = { .getter_magic = fgetter }, .set = { .setter_magic = fsetter } } } }
+#define JS_PROP_STRING_DEF(name, cstr, prop_flags) { name, prop_flags, JS_DEF_PROP_STRING, 0, .u = { .str = cstr } }
+#define JS_PROP_INT32_DEF(name, val, prop_flags) { name, prop_flags, JS_DEF_PROP_INT32, 0, .u = { .i32 = val } }
+#define JS_PROP_INT64_DEF(name, val, prop_flags) { name, prop_flags, JS_DEF_PROP_INT64, 0, .u = { .i64 = val } }
+#define JS_PROP_DOUBLE_DEF(name, val, prop_flags) { name, prop_flags, JS_DEF_PROP_DOUBLE, 0, .u = { .f64 = val } }
+#define JS_PROP_UNDEFINED_DEF(name, prop_flags) { name, prop_flags, JS_DEF_PROP_UNDEFINED, 0, .u = { .i32 = 0 } }
+#define JS_OBJECT_DEF(name, tab, len, prop_flags) { name, prop_flags, JS_DEF_OBJECT, 0, .u = { .prop_list = { tab, len } } }
+#define JS_ALIAS_DEF(name, from) { name, JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE, JS_DEF_ALIAS, 0, .u = { .alias = { from, -1 } } }
+#define JS_ALIAS_BASE_DEF(name, from, base) { name, JS_PROP_WRITABLE | JS_PROP_CONFIGURABLE, JS_DEF_ALIAS, 0, .u = { .alias = { from, base } } }
+
+void JS_SetPropertyFunctionList(JSContext *ctx, JSValueConst obj,
+ const JSCFunctionListEntry *tab,
+ int len);
+
+/* C module definition */
+
+typedef int JSModuleInitFunc(JSContext *ctx, JSModuleDef *m);
+
+JSModuleDef *JS_NewCModule(JSContext *ctx, const char *name_str,
+ JSModuleInitFunc *func);
+/* can only be called before the module is instantiated */
+int JS_AddModuleExport(JSContext *ctx, JSModuleDef *m, const char *name_str);
+int JS_AddModuleExportList(JSContext *ctx, JSModuleDef *m,
+ const JSCFunctionListEntry *tab, int len);
+/* can only be called after the module is instantiated */
+int JS_SetModuleExport(JSContext *ctx, JSModuleDef *m, const char *export_name,
+ JSValue val);
+int JS_SetModuleExportList(JSContext *ctx, JSModuleDef *m,
+ const JSCFunctionListEntry *tab, int len);
+
+#undef js_unlikely
+#undef js_force_inline
+
+#ifdef __cplusplus
+} /* extern "C" { */
+#endif
+
+#endif /* QUICKJS_H */
diff --git a/src/couch_quickjs/quickjs/run-test262.c b/src/couch_quickjs/quickjs/run-test262.c
new file mode 100644
index 0000000..4afb3f8
--- /dev/null
+++ b/src/couch_quickjs/quickjs/run-test262.c
@@ -0,0 +1,2216 @@
+/*
+ * ECMA Test 262 Runner for QuickJS
+ *
+ * Copyright (c) 2017-2021 Fabrice Bellard
+ * Copyright (c) 2017-2021 Charlie Gordon
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdarg.h>
+#include <inttypes.h>
+#include <string.h>
+#include <assert.h>
+#include <ctype.h>
+#include <unistd.h>
+#include <errno.h>
+#include <time.h>
+#include <dirent.h>
+#include <ftw.h>
+
+#include "cutils.h"
+#include "list.h"
+#include "quickjs-libc.h"
+
+/* enable test262 thread support to test SharedArrayBuffer and Atomics */
+#define CONFIG_AGENT
+
+#define CMD_NAME "run-test262"
+
+typedef struct namelist_t {
+ char **array;
+ int count;
+ int size;
+ unsigned int sorted : 1;
+} namelist_t;
+
+namelist_t test_list;
+namelist_t exclude_list;
+namelist_t exclude_dir_list;
+
+FILE *outfile;
+enum test_mode_t {
+ TEST_DEFAULT_NOSTRICT, /* run tests as nostrict unless test is flagged as strictonly */
+ TEST_DEFAULT_STRICT, /* run tests as strict unless test is flagged as nostrict */
+ TEST_NOSTRICT, /* run tests as nostrict, skip strictonly tests */
+ TEST_STRICT, /* run tests as strict, skip nostrict tests */
+ TEST_ALL, /* run tests in both strict and nostrict, unless restricted by spec */
+} test_mode = TEST_DEFAULT_NOSTRICT;
+int compact;
+int show_timings;
+int skip_async;
+int skip_module;
+int new_style;
+int dump_memory;
+int stats_count;
+JSMemoryUsage stats_all, stats_avg, stats_min, stats_max;
+char *stats_min_filename;
+char *stats_max_filename;
+int verbose;
+char *harness_dir;
+char *harness_exclude;
+char *harness_features;
+char *harness_skip_features;
+char *error_filename;
+char *error_file;
+FILE *error_out;
+char *report_filename;
+int update_errors;
+int test_count, test_failed, test_index, test_skipped, test_excluded;
+int new_errors, changed_errors, fixed_errors;
+int async_done;
+
+void warning(const char *, ...) __attribute__((__format__(__printf__, 1, 2)));
+void fatal(int, const char *, ...) __attribute__((__format__(__printf__, 2, 3)));
+
+void warning(const char *fmt, ...)
+{
+ va_list ap;
+
+ fflush(stdout);
+ fprintf(stderr, "%s: ", CMD_NAME);
+ va_start(ap, fmt);
+ vfprintf(stderr, fmt, ap);
+ va_end(ap);
+ fputc('\n', stderr);
+}
+
+void fatal(int errcode, const char *fmt, ...)
+{
+ va_list ap;
+
+ fflush(stdout);
+ fprintf(stderr, "%s: ", CMD_NAME);
+ va_start(ap, fmt);
+ vfprintf(stderr, fmt, ap);
+ va_end(ap);
+ fputc('\n', stderr);
+
+ exit(errcode);
+}
+
+void perror_exit(int errcode, const char *s)
+{
+ fflush(stdout);
+ fprintf(stderr, "%s: ", CMD_NAME);
+ perror(s);
+ exit(errcode);
+}
+
+char *strdup_len(const char *str, int len)
+{
+ char *p = malloc(len + 1);
+ memcpy(p, str, len);
+ p[len] = '\0';
+ return p;
+}
+
+static inline int str_equal(const char *a, const char *b) {
+ return !strcmp(a, b);
+}
+
+char *str_append(char **pp, const char *sep, const char *str) {
+ char *res, *p;
+ size_t len = 0;
+ p = *pp;
+ if (p) {
+ len = strlen(p) + strlen(sep);
+ }
+ res = malloc(len + strlen(str) + 1);
+ if (p) {
+ strcpy(res, p);
+ strcat(res, sep);
+ }
+ strcpy(res + len, str);
+ free(p);
+ return *pp = res;
+}
+
+char *str_strip(char *p)
+{
+ size_t len = strlen(p);
+ while (len > 0 && isspace((unsigned char)p[len - 1]))
+ p[--len] = '\0';
+ while (isspace((unsigned char)*p))
+ p++;
+ return p;
+}
+
+int has_prefix(const char *str, const char *prefix)
+{
+ return !strncmp(str, prefix, strlen(prefix));
+}
+
+char *skip_prefix(const char *str, const char *prefix)
+{
+ int i;
+ for (i = 0;; i++) {
+ if (prefix[i] == '\0') { /* skip the prefix */
+ str += i;
+ break;
+ }
+ if (str[i] != prefix[i])
+ break;
+ }
+ return (char *)str;
+}
+
+char *get_basename(const char *filename)
+{
+ char *p;
+
+ p = strrchr(filename, '/');
+ if (!p)
+ return NULL;
+ return strdup_len(filename, p - filename);
+}
+
+char *compose_path(const char *path, const char *name)
+{
+ int path_len, name_len;
+ char *d, *q;
+
+ if (!path || path[0] == '\0' || *name == '/') {
+ d = strdup(name);
+ } else {
+ path_len = strlen(path);
+ name_len = strlen(name);
+ d = malloc(path_len + 1 + name_len + 1);
+ if (d) {
+ q = d;
+ memcpy(q, path, path_len);
+ q += path_len;
+ if (path[path_len - 1] != '/')
+ *q++ = '/';
+ memcpy(q, name, name_len + 1);
+ }
+ }
+ return d;
+}
+
+int namelist_cmp(const char *a, const char *b)
+{
+ /* compare strings in modified lexicographical order */
+ for (;;) {
+ int ca = (unsigned char)*a++;
+ int cb = (unsigned char)*b++;
+ if (isdigit(ca) && isdigit(cb)) {
+ int na = ca - '0';
+ int nb = cb - '0';
+ while (isdigit(ca = (unsigned char)*a++))
+ na = na * 10 + ca - '0';
+ while (isdigit(cb = (unsigned char)*b++))
+ nb = nb * 10 + cb - '0';
+ if (na < nb)
+ return -1;
+ if (na > nb)
+ return +1;
+ }
+ if (ca < cb)
+ return -1;
+ if (ca > cb)
+ return +1;
+ if (ca == '\0')
+ return 0;
+ }
+}
+
+int namelist_cmp_indirect(const void *a, const void *b)
+{
+ return namelist_cmp(*(const char **)a, *(const char **)b);
+}
+
+void namelist_sort(namelist_t *lp)
+{
+ int i, count;
+ if (lp->count > 1) {
+ qsort(lp->array, lp->count, sizeof(*lp->array), namelist_cmp_indirect);
+ /* remove duplicates */
+ for (count = i = 1; i < lp->count; i++) {
+ if (namelist_cmp(lp->array[count - 1], lp->array[i]) == 0) {
+ free(lp->array[i]);
+ } else {
+ lp->array[count++] = lp->array[i];
+ }
+ }
+ lp->count = count;
+ }
+ lp->sorted = 1;
+}
+
+int namelist_find(namelist_t *lp, const char *name)
+{
+ int a, b, m, cmp;
+
+ if (!lp->sorted) {
+ namelist_sort(lp);
+ }
+ for (a = 0, b = lp->count; a < b;) {
+ m = a + (b - a) / 2;
+ cmp = namelist_cmp(lp->array[m], name);
+ if (cmp < 0)
+ a = m + 1;
+ else if (cmp > 0)
+ b = m;
+ else
+ return m;
+ }
+ return -1;
+}
+
+void namelist_add(namelist_t *lp, const char *base, const char *name)
+{
+ char *s;
+
+ s = compose_path(base, name);
+ if (!s)
+ goto fail;
+ if (lp->count == lp->size) {
+ size_t newsize = lp->size + (lp->size >> 1) + 4;
+ char **a = realloc(lp->array, sizeof(lp->array[0]) * newsize);
+ if (!a)
+ goto fail;
+ lp->array = a;
+ lp->size = newsize;
+ }
+ lp->array[lp->count] = s;
+ lp->count++;
+ return;
+fail:
+ fatal(1, "allocation failure\n");
+}
+
+void namelist_load(namelist_t *lp, const char *filename)
+{
+ char buf[1024];
+ char *base_name;
+ FILE *f;
+
+ f = fopen(filename, "rb");
+ if (!f) {
+ perror_exit(1, filename);
+ }
+ base_name = get_basename(filename);
+
+ while (fgets(buf, sizeof(buf), f) != NULL) {
+ char *p = str_strip(buf);
+ if (*p == '#' || *p == ';' || *p == '\0')
+ continue; /* line comment */
+
+ namelist_add(lp, base_name, p);
+ }
+ free(base_name);
+ fclose(f);
+}
+
+void namelist_add_from_error_file(namelist_t *lp, const char *file)
+{
+ const char *p, *p0;
+ char *pp;
+
+ for (p = file; (p = strstr(p, ".js:")) != NULL; p++) {
+ for (p0 = p; p0 > file && p0[-1] != '\n'; p0--)
+ continue;
+ pp = strdup_len(p0, p + 3 - p0);
+ namelist_add(lp, NULL, pp);
+ free(pp);
+ }
+}
+
+void namelist_free(namelist_t *lp)
+{
+ while (lp->count > 0) {
+ free(lp->array[--lp->count]);
+ }
+ free(lp->array);
+ lp->array = NULL;
+ lp->size = 0;
+}
+
+static int add_test_file(const char *filename, const struct stat *ptr, int flag)
+{
+ namelist_t *lp = &test_list;
+ if (has_suffix(filename, ".js") && !has_suffix(filename, "_FIXTURE.js"))
+ namelist_add(lp, NULL, filename);
+ return 0;
+}
+
+/* find js files from the directory tree and sort the list */
+static void enumerate_tests(const char *path)
+{
+ namelist_t *lp = &test_list;
+ int start = lp->count;
+ ftw(path, add_test_file, 100);
+ qsort(lp->array + start, lp->count - start, sizeof(*lp->array),
+ namelist_cmp_indirect);
+}
+
+static JSValue js_print(JSContext *ctx, JSValueConst this_val,
+ int argc, JSValueConst *argv)
+{
+ int i;
+ const char *str;
+
+ if (outfile) {
+ for (i = 0; i < argc; i++) {
+ if (i != 0)
+ fputc(' ', outfile);
+ str = JS_ToCString(ctx, argv[i]);
+ if (!str)
+ return JS_EXCEPTION;
+ if (!strcmp(str, "Test262:AsyncTestComplete")) {
+ async_done++;
+ } else if (strstart(str, "Test262:AsyncTestFailure", NULL)) {
+ async_done = 2; /* force an error */
+ }
+ fputs(str, outfile);
+ JS_FreeCString(ctx, str);
+ }
+ fputc('\n', outfile);
+ }
+ return JS_UNDEFINED;
+}
+
+static JSValue js_detachArrayBuffer(JSContext *ctx, JSValue this_val,
+ int argc, JSValue *argv)
+{
+ JS_DetachArrayBuffer(ctx, argv[0]);
+ return JS_UNDEFINED;
+}
+
+static JSValue js_evalScript(JSContext *ctx, JSValue this_val,
+ int argc, JSValue *argv)
+{
+ const char *str;
+ size_t len;
+ JSValue ret;
+ str = JS_ToCStringLen(ctx, &len, argv[0]);
+ if (!str)
+ return JS_EXCEPTION;
+ ret = JS_Eval(ctx, str, len, "<evalScript>", JS_EVAL_TYPE_GLOBAL);
+ JS_FreeCString(ctx, str);
+ return ret;
+}
+
+#ifdef CONFIG_AGENT
+
+#include <pthread.h>
+
+typedef struct {
+ struct list_head link;
+ pthread_t tid;
+ char *script;
+ JSValue broadcast_func;
+ BOOL broadcast_pending;
+ JSValue broadcast_sab; /* in the main context */
+ uint8_t *broadcast_sab_buf;
+ size_t broadcast_sab_size;
+ int32_t broadcast_val;
+} Test262Agent;
+
+typedef struct {
+ struct list_head link;
+ char *str;
+} AgentReport;
+
+static JSValue add_helpers1(JSContext *ctx);
+static void add_helpers(JSContext *ctx);
+
+static pthread_mutex_t agent_mutex = PTHREAD_MUTEX_INITIALIZER;
+static pthread_cond_t agent_cond = PTHREAD_COND_INITIALIZER;
+/* list of Test262Agent.link */
+static struct list_head agent_list = LIST_HEAD_INIT(agent_list);
+
+static pthread_mutex_t report_mutex = PTHREAD_MUTEX_INITIALIZER;
+/* list of AgentReport.link */
+static struct list_head report_list = LIST_HEAD_INIT(report_list);
+
+static void *agent_start(void *arg)
+{
+ Test262Agent *agent = arg;
+ JSRuntime *rt;
+ JSContext *ctx;
+ JSValue ret_val;
+ int ret;
+
+ rt = JS_NewRuntime();
+ if (rt == NULL) {
+ fatal(1, "JS_NewRuntime failure");
+ }
+ ctx = JS_NewContext(rt);
+ if (ctx == NULL) {
+ JS_FreeRuntime(rt);
+ fatal(1, "JS_NewContext failure");
+ }
+ JS_SetContextOpaque(ctx, agent);
+ JS_SetRuntimeInfo(rt, "agent");
+ JS_SetCanBlock(rt, TRUE);
+
+ add_helpers(ctx);
+ ret_val = JS_Eval(ctx, agent->script, strlen(agent->script),
+ "<evalScript>", JS_EVAL_TYPE_GLOBAL);
+ free(agent->script);
+ agent->script = NULL;
+ if (JS_IsException(ret_val))
+ js_std_dump_error(ctx);
+ JS_FreeValue(ctx, ret_val);
+
+ for(;;) {
+ JSContext *ctx1;
+ ret = JS_ExecutePendingJob(JS_GetRuntime(ctx), &ctx1);
+ if (ret < 0) {
+ js_std_dump_error(ctx);
+ break;
+ } else if (ret == 0) {
+ if (JS_IsUndefined(agent->broadcast_func)) {
+ break;
+ } else {
+ JSValue args[2];
+
+ pthread_mutex_lock(&agent_mutex);
+ while (!agent->broadcast_pending) {
+ pthread_cond_wait(&agent_cond, &agent_mutex);
+ }
+
+ agent->broadcast_pending = FALSE;
+ pthread_cond_signal(&agent_cond);
+
+ pthread_mutex_unlock(&agent_mutex);
+
+ args[0] = JS_NewArrayBuffer(ctx, agent->broadcast_sab_buf,
+ agent->broadcast_sab_size,
+ NULL, NULL, TRUE);
+ args[1] = JS_NewInt32(ctx, agent->broadcast_val);
+ ret_val = JS_Call(ctx, agent->broadcast_func, JS_UNDEFINED,
+ 2, (JSValueConst *)args);
+ JS_FreeValue(ctx, args[0]);
+ JS_FreeValue(ctx, args[1]);
+ if (JS_IsException(ret_val))
+ js_std_dump_error(ctx);
+ JS_FreeValue(ctx, ret_val);
+ JS_FreeValue(ctx, agent->broadcast_func);
+ agent->broadcast_func = JS_UNDEFINED;
+ }
+ }
+ }
+ JS_FreeValue(ctx, agent->broadcast_func);
+
+ JS_FreeContext(ctx);
+ JS_FreeRuntime(rt);
+ return NULL;
+}
+
+static JSValue js_agent_start(JSContext *ctx, JSValue this_val,
+ int argc, JSValue *argv)
+{
+ const char *script;
+ Test262Agent *agent;
+ pthread_attr_t attr;
+
+ if (JS_GetContextOpaque(ctx) != NULL)
+ return JS_ThrowTypeError(ctx, "cannot be called inside an agent");
+
+ script = JS_ToCString(ctx, argv[0]);
+ if (!script)
+ return JS_EXCEPTION;
+ agent = malloc(sizeof(*agent));
+ memset(agent, 0, sizeof(*agent));
+ agent->broadcast_func = JS_UNDEFINED;
+ agent->broadcast_sab = JS_UNDEFINED;
+ agent->script = strdup(script);
+ JS_FreeCString(ctx, script);
+ list_add_tail(&agent->link, &agent_list);
+ pthread_attr_init(&attr);
+ // musl libc gives threads 80 kb stacks, much smaller than
+ // JS_DEFAULT_STACK_SIZE (256 kb)
+ pthread_attr_setstacksize(&attr, 2 << 20); // 2 MB, glibc default
+ pthread_create(&agent->tid, &attr, agent_start, agent);
+ pthread_attr_destroy(&attr);
+ return JS_UNDEFINED;
+}
+
+static void js_agent_free(JSContext *ctx)
+{
+ struct list_head *el, *el1;
+ Test262Agent *agent;
+
+ list_for_each_safe(el, el1, &agent_list) {
+ agent = list_entry(el, Test262Agent, link);
+ pthread_join(agent->tid, NULL);
+ JS_FreeValue(ctx, agent->broadcast_sab);
+ list_del(&agent->link);
+ free(agent);
+ }
+}
+
+static JSValue js_agent_leaving(JSContext *ctx, JSValue this_val,
+ int argc, JSValue *argv)
+{
+ Test262Agent *agent = JS_GetContextOpaque(ctx);
+ if (!agent)
+ return JS_ThrowTypeError(ctx, "must be called inside an agent");
+ /* nothing to do */
+ return JS_UNDEFINED;
+}
+
+static BOOL is_broadcast_pending(void)
+{
+ struct list_head *el;
+ Test262Agent *agent;
+ list_for_each(el, &agent_list) {
+ agent = list_entry(el, Test262Agent, link);
+ if (agent->broadcast_pending)
+ return TRUE;
+ }
+ return FALSE;
+}
+
+static JSValue js_agent_broadcast(JSContext *ctx, JSValue this_val,
+ int argc, JSValue *argv)
+{
+ JSValueConst sab = argv[0];
+ struct list_head *el;
+ Test262Agent *agent;
+ uint8_t *buf;
+ size_t buf_size;
+ int32_t val;
+
+ if (JS_GetContextOpaque(ctx) != NULL)
+ return JS_ThrowTypeError(ctx, "cannot be called inside an agent");
+
+ buf = JS_GetArrayBuffer(ctx, &buf_size, sab);
+ if (!buf)
+ return JS_EXCEPTION;
+ if (JS_ToInt32(ctx, &val, argv[1]))
+ return JS_EXCEPTION;
+
+ /* broadcast the values and wait until all agents have started
+ calling their callbacks */
+ pthread_mutex_lock(&agent_mutex);
+ list_for_each(el, &agent_list) {
+ agent = list_entry(el, Test262Agent, link);
+ agent->broadcast_pending = TRUE;
+ /* the shared array buffer is used by the thread, so increment
+ its refcount */
+ agent->broadcast_sab = JS_DupValue(ctx, sab);
+ agent->broadcast_sab_buf = buf;
+ agent->broadcast_sab_size = buf_size;
+ agent->broadcast_val = val;
+ }
+ pthread_cond_broadcast(&agent_cond);
+
+ while (is_broadcast_pending()) {
+ pthread_cond_wait(&agent_cond, &agent_mutex);
+ }
+ pthread_mutex_unlock(&agent_mutex);
+ return JS_UNDEFINED;
+}
+
+static JSValue js_agent_receiveBroadcast(JSContext *ctx, JSValue this_val,
+ int argc, JSValue *argv)
+{
+ Test262Agent *agent = JS_GetContextOpaque(ctx);
+ if (!agent)
+ return JS_ThrowTypeError(ctx, "must be called inside an agent");
+ if (!JS_IsFunction(ctx, argv[0]))
+ return JS_ThrowTypeError(ctx, "expecting function");
+ JS_FreeValue(ctx, agent->broadcast_func);
+ agent->broadcast_func = JS_DupValue(ctx, argv[0]);
+ return JS_UNDEFINED;
+}
+
+static JSValue js_agent_sleep(JSContext *ctx, JSValue this_val,
+ int argc, JSValue *argv)
+{
+ uint32_t duration;
+ if (JS_ToUint32(ctx, &duration, argv[0]))
+ return JS_EXCEPTION;
+ usleep(duration * 1000);
+ return JS_UNDEFINED;
+}
+
+static int64_t get_clock_ms(void)
+{
+ struct timespec ts;
+ clock_gettime(CLOCK_MONOTONIC, &ts);
+ return (uint64_t)ts.tv_sec * 1000 + (ts.tv_nsec / 1000000);
+}
+
+static JSValue js_agent_monotonicNow(JSContext *ctx, JSValue this_val,
+ int argc, JSValue *argv)
+{
+ return JS_NewInt64(ctx, get_clock_ms());
+}
+
+static JSValue js_agent_getReport(JSContext *ctx, JSValue this_val,
+ int argc, JSValue *argv)
+{
+ AgentReport *rep;
+ JSValue ret;
+
+ pthread_mutex_lock(&report_mutex);
+ if (list_empty(&report_list)) {
+ rep = NULL;
+ } else {
+ rep = list_entry(report_list.next, AgentReport, link);
+ list_del(&rep->link);
+ }
+ pthread_mutex_unlock(&report_mutex);
+ if (rep) {
+ ret = JS_NewString(ctx, rep->str);
+ free(rep->str);
+ free(rep);
+ } else {
+ ret = JS_NULL;
+ }
+ return ret;
+}
+
+static JSValue js_agent_report(JSContext *ctx, JSValue this_val,
+ int argc, JSValue *argv)
+{
+ const char *str;
+ AgentReport *rep;
+
+ str = JS_ToCString(ctx, argv[0]);
+ if (!str)
+ return JS_EXCEPTION;
+ rep = malloc(sizeof(*rep));
+ rep->str = strdup(str);
+ JS_FreeCString(ctx, str);
+
+ pthread_mutex_lock(&report_mutex);
+ list_add_tail(&rep->link, &report_list);
+ pthread_mutex_unlock(&report_mutex);
+ return JS_UNDEFINED;
+}
+
+static const JSCFunctionListEntry js_agent_funcs[] = {
+ /* only in main */
+ JS_CFUNC_DEF("start", 1, js_agent_start ),
+ JS_CFUNC_DEF("getReport", 0, js_agent_getReport ),
+ JS_CFUNC_DEF("broadcast", 2, js_agent_broadcast ),
+ /* only in agent */
+ JS_CFUNC_DEF("report", 1, js_agent_report ),
+ JS_CFUNC_DEF("leaving", 0, js_agent_leaving ),
+ JS_CFUNC_DEF("receiveBroadcast", 1, js_agent_receiveBroadcast ),
+ /* in both */
+ JS_CFUNC_DEF("sleep", 1, js_agent_sleep ),
+ JS_CFUNC_DEF("monotonicNow", 0, js_agent_monotonicNow ),
+};
+
+static JSValue js_new_agent(JSContext *ctx)
+{
+ JSValue agent;
+ agent = JS_NewObject(ctx);
+ JS_SetPropertyFunctionList(ctx, agent, js_agent_funcs,
+ countof(js_agent_funcs));
+ return agent;
+}
+#endif
+
+static JSValue js_createRealm(JSContext *ctx, JSValue this_val,
+ int argc, JSValue *argv)
+{
+ JSContext *ctx1;
+ JSValue ret;
+
+ ctx1 = JS_NewContext(JS_GetRuntime(ctx));
+ if (!ctx1)
+ return JS_ThrowOutOfMemory(ctx);
+ ret = add_helpers1(ctx1);
+ /* ctx1 has a refcount so it stays alive */
+ JS_FreeContext(ctx1);
+ return ret;
+}
+
+static JSValue js_IsHTMLDDA(JSContext *ctx, JSValue this_val,
+ int argc, JSValue *argv)
+{
+ return JS_NULL;
+}
+
+static JSValue add_helpers1(JSContext *ctx)
+{
+ JSValue global_obj;
+ JSValue obj262, obj;
+
+ global_obj = JS_GetGlobalObject(ctx);
+
+ JS_SetPropertyStr(ctx, global_obj, "print",
+ JS_NewCFunction(ctx, js_print, "print", 1));
+
+ /* $262 special object used by the tests */
+ obj262 = JS_NewObject(ctx);
+ JS_SetPropertyStr(ctx, obj262, "detachArrayBuffer",
+ JS_NewCFunction(ctx, js_detachArrayBuffer,
+ "detachArrayBuffer", 1));
+ JS_SetPropertyStr(ctx, obj262, "evalScript",
+ JS_NewCFunction(ctx, js_evalScript,
+ "evalScript", 1));
+ JS_SetPropertyStr(ctx, obj262, "codePointRange",
+ JS_NewCFunction(ctx, js_string_codePointRange,
+ "codePointRange", 2));
+#ifdef CONFIG_AGENT
+ JS_SetPropertyStr(ctx, obj262, "agent", js_new_agent(ctx));
+#endif
+
+ JS_SetPropertyStr(ctx, obj262, "global",
+ JS_DupValue(ctx, global_obj));
+ JS_SetPropertyStr(ctx, obj262, "createRealm",
+ JS_NewCFunction(ctx, js_createRealm,
+ "createRealm", 0));
+ obj = JS_NewCFunction(ctx, js_IsHTMLDDA, "IsHTMLDDA", 0);
+ JS_SetIsHTMLDDA(ctx, obj);
+ JS_SetPropertyStr(ctx, obj262, "IsHTMLDDA", obj);
+
+ JS_SetPropertyStr(ctx, global_obj, "$262", JS_DupValue(ctx, obj262));
+
+ JS_FreeValue(ctx, global_obj);
+ return obj262;
+}
+
+static void add_helpers(JSContext *ctx)
+{
+ JS_FreeValue(ctx, add_helpers1(ctx));
+}
+
+static char *load_file(const char *filename, size_t *lenp)
+{
+ char *buf;
+ size_t buf_len;
+ buf = (char *)js_load_file(NULL, &buf_len, filename);
+ if (!buf)
+ perror_exit(1, filename);
+ if (lenp)
+ *lenp = buf_len;
+ return buf;
+}
+
+static JSModuleDef *js_module_loader_test(JSContext *ctx,
+ const char *module_name, void *opaque)
+{
+ size_t buf_len;
+ uint8_t *buf;
+ JSModuleDef *m;
+ JSValue func_val;
+ char *filename, *slash, path[1024];
+
+ // interpret import("bar.js") from path/to/foo.js as
+ // import("path/to/bar.js") but leave import("./bar.js") untouched
+ filename = opaque;
+ if (!strchr(module_name, '/')) {
+ slash = strrchr(filename, '/');
+ if (slash) {
+ snprintf(path, sizeof(path), "%.*s/%s",
+ (int)(slash - filename), filename, module_name);
+ module_name = path;
+ }
+ }
+
+ buf = js_load_file(ctx, &buf_len, module_name);
+ if (!buf) {
+ JS_ThrowReferenceError(ctx, "could not load module filename '%s'",
+ module_name);
+ return NULL;
+ }
+
+ /* compile the module */
+ func_val = JS_Eval(ctx, (char *)buf, buf_len, module_name,
+ JS_EVAL_TYPE_MODULE | JS_EVAL_FLAG_COMPILE_ONLY);
+ js_free(ctx, buf);
+ if (JS_IsException(func_val))
+ return NULL;
+ /* the module is already referenced, so we must free it */
+ m = JS_VALUE_GET_PTR(func_val);
+ JS_FreeValue(ctx, func_val);
+ return m;
+}
+
+int is_line_sep(char c)
+{
+ return (c == '\0' || c == '\n' || c == '\r');
+}
+
+char *find_line(const char *str, const char *line)
+{
+ if (str) {
+ const char *p;
+ int len = strlen(line);
+ for (p = str; (p = strstr(p, line)) != NULL; p += len + 1) {
+ if ((p == str || is_line_sep(p[-1])) && is_line_sep(p[len]))
+ return (char *)p;
+ }
+ }
+ return NULL;
+}
+
+int is_word_sep(char c)
+{
+ return (c == '\0' || isspace((unsigned char)c) || c == ',');
+}
+
+char *find_word(const char *str, const char *word)
+{
+ const char *p;
+ int len = strlen(word);
+ if (str && len) {
+ for (p = str; (p = strstr(p, word)) != NULL; p += len) {
+ if ((p == str || is_word_sep(p[-1])) && is_word_sep(p[len]))
+ return (char *)p;
+ }
+ }
+ return NULL;
+}
+
+/* handle exclude directories */
+void update_exclude_dirs(void)
+{
+ namelist_t *lp = &test_list;
+ namelist_t *ep = &exclude_list;
+ namelist_t *dp = &exclude_dir_list;
+ char *name;
+ int i, j, count;
+
+ /* split directpries from exclude_list */
+ for (count = i = 0; i < ep->count; i++) {
+ name = ep->array[i];
+ if (has_suffix(name, "/")) {
+ namelist_add(dp, NULL, name);
+ free(name);
+ } else {
+ ep->array[count++] = name;
+ }
+ }
+ ep->count = count;
+
+ namelist_sort(dp);
+
+ /* filter out excluded directories */
+ for (count = i = 0; i < lp->count; i++) {
+ name = lp->array[i];
+ for (j = 0; j < dp->count; j++) {
+ if (has_prefix(name, dp->array[j])) {
+ test_excluded++;
+ free(name);
+ name = NULL;
+ break;
+ }
+ }
+ if (name) {
+ lp->array[count++] = name;
+ }
+ }
+ lp->count = count;
+}
+
+void load_config(const char *filename, const char *ignore)
+{
+ char buf[1024];
+ FILE *f;
+ char *base_name;
+ enum {
+ SECTION_NONE = 0,
+ SECTION_CONFIG,
+ SECTION_EXCLUDE,
+ SECTION_FEATURES,
+ SECTION_TESTS,
+ } section = SECTION_NONE;
+ int lineno = 0;
+
+ f = fopen(filename, "rb");
+ if (!f) {
+ perror_exit(1, filename);
+ }
+ base_name = get_basename(filename);
+
+ while (fgets(buf, sizeof(buf), f) != NULL) {
+ char *p, *q;
+ lineno++;
+ p = str_strip(buf);
+ if (*p == '#' || *p == ';' || *p == '\0')
+ continue; /* line comment */
+
+ if (*p == "[]"[0]) {
+ /* new section */
+ p++;
+ p[strcspn(p, "]")] = '\0';
+ if (str_equal(p, "config"))
+ section = SECTION_CONFIG;
+ else if (str_equal(p, "exclude"))
+ section = SECTION_EXCLUDE;
+ else if (str_equal(p, "features"))
+ section = SECTION_FEATURES;
+ else if (str_equal(p, "tests"))
+ section = SECTION_TESTS;
+ else
+ section = SECTION_NONE;
+ continue;
+ }
+ q = strchr(p, '=');
+ if (q) {
+ /* setting: name=value */
+ *q++ = '\0';
+ q = str_strip(q);
+ }
+ switch (section) {
+ case SECTION_CONFIG:
+ if (!q) {
+ printf("%s:%d: syntax error\n", filename, lineno);
+ continue;
+ }
+ if (strstr(ignore, p)) {
+ printf("%s:%d: ignoring %s=%s\n", filename, lineno, p, q);
+ continue;
+ }
+ if (str_equal(p, "style")) {
+ new_style = str_equal(q, "new");
+ continue;
+ }
+ if (str_equal(p, "testdir")) {
+ char *testdir = compose_path(base_name, q);
+ enumerate_tests(testdir);
+ free(testdir);
+ continue;
+ }
+ if (str_equal(p, "harnessdir")) {
+ harness_dir = compose_path(base_name, q);
+ continue;
+ }
+ if (str_equal(p, "harnessexclude")) {
+ str_append(&harness_exclude, " ", q);
+ continue;
+ }
+ if (str_equal(p, "features")) {
+ str_append(&harness_features, " ", q);
+ continue;
+ }
+ if (str_equal(p, "skip-features")) {
+ str_append(&harness_skip_features, " ", q);
+ continue;
+ }
+ if (str_equal(p, "mode")) {
+ if (str_equal(q, "default") || str_equal(q, "default-nostrict"))
+ test_mode = TEST_DEFAULT_NOSTRICT;
+ else if (str_equal(q, "default-strict"))
+ test_mode = TEST_DEFAULT_STRICT;
+ else if (str_equal(q, "nostrict"))
+ test_mode = TEST_NOSTRICT;
+ else if (str_equal(q, "strict"))
+ test_mode = TEST_STRICT;
+ else if (str_equal(q, "all") || str_equal(q, "both"))
+ test_mode = TEST_ALL;
+ else
+ fatal(2, "unknown test mode: %s", q);
+ continue;
+ }
+ if (str_equal(p, "strict")) {
+ if (str_equal(q, "skip") || str_equal(q, "no"))
+ test_mode = TEST_NOSTRICT;
+ continue;
+ }
+ if (str_equal(p, "nostrict")) {
+ if (str_equal(q, "skip") || str_equal(q, "no"))
+ test_mode = TEST_STRICT;
+ continue;
+ }
+ if (str_equal(p, "async")) {
+ skip_async = !str_equal(q, "yes");
+ continue;
+ }
+ if (str_equal(p, "module")) {
+ skip_module = !str_equal(q, "yes");
+ continue;
+ }
+ if (str_equal(p, "verbose")) {
+ verbose = str_equal(q, "yes");
+ continue;
+ }
+ if (str_equal(p, "errorfile")) {
+ error_filename = compose_path(base_name, q);
+ continue;
+ }
+ if (str_equal(p, "excludefile")) {
+ char *path = compose_path(base_name, q);
+ namelist_load(&exclude_list, path);
+ free(path);
+ continue;
+ }
+ if (str_equal(p, "reportfile")) {
+ report_filename = compose_path(base_name, q);
+ continue;
+ }
+ case SECTION_EXCLUDE:
+ namelist_add(&exclude_list, base_name, p);
+ break;
+ case SECTION_FEATURES:
+ if (!q || str_equal(q, "yes"))
+ str_append(&harness_features, " ", p);
+ else
+ str_append(&harness_skip_features, " ", p);
+ break;
+ case SECTION_TESTS:
+ namelist_add(&test_list, base_name, p);
+ break;
+ default:
+ /* ignore settings in other sections */
+ break;
+ }
+ }
+ fclose(f);
+ free(base_name);
+}
+
+char *find_error(const char *filename, int *pline, int is_strict)
+{
+ if (error_file) {
+ size_t len = strlen(filename);
+ const char *p, *q, *r;
+ int line;
+
+ for (p = error_file; (p = strstr(p, filename)) != NULL; p += len) {
+ if ((p == error_file || p[-1] == '\n' || p[-1] == '(') && p[len] == ':') {
+ q = p + len;
+ line = 1;
+ if (*q == ':') {
+ line = strtol(q + 1, (char**)&q, 10);
+ if (*q == ':')
+ q++;
+ }
+ while (*q == ' ') {
+ q++;
+ }
+ /* check strict mode indicator */
+ if (!strstart(q, "strict mode: ", &q) != !is_strict)
+ continue;
+ r = q = skip_prefix(q, "unexpected error: ");
+ r += strcspn(r, "\n");
+ while (r[0] == '\n' && r[1] && strncmp(r + 1, filename, 8)) {
+ r++;
+ r += strcspn(r, "\n");
+ }
+ if (pline)
+ *pline = line;
+ return strdup_len(q, r - q);
+ }
+ }
+ }
+ return NULL;
+}
+
+int skip_comments(const char *str, int line, int *pline)
+{
+ const char *p;
+ int c;
+
+ p = str;
+ while ((c = (unsigned char)*p++) != '\0') {
+ if (isspace(c)) {
+ if (c == '\n')
+ line++;
+ continue;
+ }
+ if (c == '/' && *p == '/') {
+ while (*++p && *p != '\n')
+ continue;
+ continue;
+ }
+ if (c == '/' && *p == '*') {
+ for (p += 1; *p; p++) {
+ if (*p == '\n') {
+ line++;
+ continue;
+ }
+ if (*p == '*' && p[1] == '/') {
+ p += 2;
+ break;
+ }
+ }
+ continue;
+ }
+ break;
+ }
+ if (pline)
+ *pline = line;
+
+ return p - str;
+}
+
+int longest_match(const char *str, const char *find, int pos, int *ppos, int line, int *pline)
+{
+ int len, maxlen;
+
+ maxlen = 0;
+
+ if (*find) {
+ const char *p;
+ for (p = str + pos; *p; p++) {
+ if (*p == *find) {
+ for (len = 1; p[len] && p[len] == find[len]; len++)
+ continue;
+ if (len > maxlen) {
+ maxlen = len;
+ if (ppos)
+ *ppos = p - str;
+ if (pline)
+ *pline = line;
+ if (!find[len])
+ break;
+ }
+ }
+ if (*p == '\n')
+ line++;
+ }
+ }
+ return maxlen;
+}
+
+static int eval_buf(JSContext *ctx, const char *buf, size_t buf_len,
+ const char *filename, int is_test, int is_negative,
+ const char *error_type, FILE *outfile, int eval_flags,
+ int is_async)
+{
+ JSValue res_val, exception_val;
+ int ret, error_line, pos, pos_line;
+ BOOL is_error, has_error_line, ret_promise;
+ const char *error_name;
+
+ pos = skip_comments(buf, 1, &pos_line);
+ error_line = pos_line;
+ has_error_line = FALSE;
+ exception_val = JS_UNDEFINED;
+ error_name = NULL;
+
+ /* a module evaluation returns a promise */
+ ret_promise = ((eval_flags & JS_EVAL_TYPE_MODULE) != 0);
+ async_done = 0; /* counter of "Test262:AsyncTestComplete" messages */
+
+ res_val = JS_Eval(ctx, buf, buf_len, filename, eval_flags);
+
+ if ((is_async || ret_promise) && !JS_IsException(res_val)) {
+ JSValue promise = JS_UNDEFINED;
+ if (ret_promise) {
+ promise = res_val;
+ } else {
+ JS_FreeValue(ctx, res_val);
+ }
+ for(;;) {
+ JSContext *ctx1;
+ ret = JS_ExecutePendingJob(JS_GetRuntime(ctx), &ctx1);
+ if (ret < 0) {
+ res_val = JS_EXCEPTION;
+ break;
+ } else if (ret == 0) {
+ if (is_async) {
+ /* test if the test called $DONE() once */
+ if (async_done != 1) {
+ res_val = JS_ThrowTypeError(ctx, "$DONE() not called");
+ } else {
+ res_val = JS_UNDEFINED;
+ }
+ } else {
+ /* check that the returned promise is fulfilled */
+ JSPromiseStateEnum state = JS_PromiseState(ctx, promise);
+ if (state == JS_PROMISE_FULFILLED)
+ res_val = JS_UNDEFINED;
+ else if (state == JS_PROMISE_REJECTED)
+ res_val = JS_Throw(ctx, JS_PromiseResult(ctx, promise));
+ else
+ res_val = JS_ThrowTypeError(ctx, "promise is pending");
+ }
+ break;
+ }
+ }
+ JS_FreeValue(ctx, promise);
+ }
+
+ if (JS_IsException(res_val)) {
+ exception_val = JS_GetException(ctx);
+ is_error = JS_IsError(ctx, exception_val);
+ /* XXX: should get the filename and line number */
+ if (outfile) {
+ if (!is_error)
+ fprintf(outfile, "%sThrow: ", (eval_flags & JS_EVAL_FLAG_STRICT) ?
+ "strict mode: " : "");
+ js_print(ctx, JS_NULL, 1, &exception_val);
+ }
+ if (is_error) {
+ JSValue name, stack;
+ const char *stack_str;
+
+ name = JS_GetPropertyStr(ctx, exception_val, "name");
+ error_name = JS_ToCString(ctx, name);
+ stack = JS_GetPropertyStr(ctx, exception_val, "stack");
+ if (!JS_IsUndefined(stack)) {
+ stack_str = JS_ToCString(ctx, stack);
+ if (stack_str) {
+ const char *p;
+ int len;
+
+ if (outfile)
+ fprintf(outfile, "%s", stack_str);
+
+ len = strlen(filename);
+ p = strstr(stack_str, filename);
+ if (p != NULL && p[len] == ':') {
+ error_line = atoi(p + len + 1);
+ has_error_line = TRUE;
+ }
+ JS_FreeCString(ctx, stack_str);
+ }
+ }
+ JS_FreeValue(ctx, stack);
+ JS_FreeValue(ctx, name);
+ }
+ if (is_negative) {
+ ret = 0;
+ if (error_type) {
+ char *error_class;
+ const char *msg;
+
+ msg = JS_ToCString(ctx, exception_val);
+ error_class = strdup_len(msg, strcspn(msg, ":"));
+ if (!str_equal(error_class, error_type))
+ ret = -1;
+ free(error_class);
+ JS_FreeCString(ctx, msg);
+ }
+ } else {
+ ret = -1;
+ }
+ } else {
+ if (is_negative)
+ ret = -1;
+ else
+ ret = 0;
+ }
+
+ if (verbose && is_test) {
+ JSValue msg_val = JS_UNDEFINED;
+ const char *msg = NULL;
+ int s_line;
+ char *s = find_error(filename, &s_line, eval_flags & JS_EVAL_FLAG_STRICT);
+ const char *strict_mode = (eval_flags & JS_EVAL_FLAG_STRICT) ? "strict mode: " : "";
+
+ if (!JS_IsUndefined(exception_val)) {
+ msg_val = JS_ToString(ctx, exception_val);
+ msg = JS_ToCString(ctx, msg_val);
+ }
+ if (is_negative) { // expect error
+ if (ret == 0) {
+ if (msg && s &&
+ (str_equal(s, "expected error") ||
+ strstart(s, "unexpected error type:", NULL) ||
+ str_equal(s, msg))) { // did not have error yet
+ if (!has_error_line) {
+ longest_match(buf, msg, pos, &pos, pos_line, &error_line);
+ }
+ printf("%s:%d: %sOK, now has error %s\n",
+ filename, error_line, strict_mode, msg);
+ fixed_errors++;
+ }
+ } else {
+ if (!s) { // not yet reported
+ if (msg) {
+ fprintf(error_out, "%s:%d: %sunexpected error type: %s\n",
+ filename, error_line, strict_mode, msg);
+ } else {
+ fprintf(error_out, "%s:%d: %sexpected error\n",
+ filename, error_line, strict_mode);
+ }
+ new_errors++;
+ }
+ }
+ } else { // should not have error
+ if (msg) {
+ if (!s || !str_equal(s, msg)) {
+ if (!has_error_line) {
+ char *p = skip_prefix(msg, "Test262 Error: ");
+ if (strstr(p, "Test case returned non-true value!")) {
+ longest_match(buf, "runTestCase", pos, &pos, pos_line, &error_line);
+ } else {
+ longest_match(buf, p, pos, &pos, pos_line, &error_line);
+ }
+ }
+ fprintf(error_out, "%s:%d: %s%s%s\n", filename, error_line, strict_mode,
+ error_file ? "unexpected error: " : "", msg);
+
+ if (s && (!str_equal(s, msg) || error_line != s_line)) {
+ printf("%s:%d: %sprevious error: %s\n", filename, s_line, strict_mode, s);
+ changed_errors++;
+ } else {
+ new_errors++;
+ }
+ }
+ } else {
+ if (s) {
+ printf("%s:%d: %sOK, fixed error: %s\n", filename, s_line, strict_mode, s);
+ fixed_errors++;
+ }
+ }
+ }
+ JS_FreeValue(ctx, msg_val);
+ JS_FreeCString(ctx, msg);
+ free(s);
+ }
+ JS_FreeCString(ctx, error_name);
+ JS_FreeValue(ctx, exception_val);
+ JS_FreeValue(ctx, res_val);
+ return ret;
+}
+
+static int eval_file(JSContext *ctx, const char *base, const char *p,
+ int eval_flags)
+{
+ char *buf;
+ size_t buf_len;
+ char *filename = compose_path(base, p);
+
+ buf = load_file(filename, &buf_len);
+ if (!buf) {
+ warning("cannot load %s", filename);
+ goto fail;
+ }
+ if (eval_buf(ctx, buf, buf_len, filename, FALSE, FALSE, NULL, stderr,
+ eval_flags, FALSE)) {
+ warning("error evaluating %s", filename);
+ goto fail;
+ }
+ free(buf);
+ free(filename);
+ return 0;
+
+fail:
+ free(buf);
+ free(filename);
+ return 1;
+}
+
+char *extract_desc(const char *buf, char style)
+{
+ const char *p, *desc_start;
+ char *desc;
+ int len;
+
+ p = buf;
+ while (*p != '\0') {
+ if (p[0] == '/' && p[1] == '*' && p[2] == style && p[3] != '/') {
+ p += 3;
+ desc_start = p;
+ while (*p != '\0' && (p[0] != '*' || p[1] != '/'))
+ p++;
+ if (*p == '\0') {
+ warning("Expecting end of desc comment");
+ return NULL;
+ }
+ len = p - desc_start;
+ desc = malloc(len + 1);
+ memcpy(desc, desc_start, len);
+ desc[len] = '\0';
+ return desc;
+ } else {
+ p++;
+ }
+ }
+ return NULL;
+}
+
+static char *find_tag(char *desc, const char *tag, int *state)
+{
+ char *p;
+ p = strstr(desc, tag);
+ if (p) {
+ p += strlen(tag);
+ *state = 0;
+ }
+ return p;
+}
+
+static char *get_option(char **pp, int *state)
+{
+ char *p, *p0, *option = NULL;
+ if (*pp) {
+ for (p = *pp;; p++) {
+ switch (*p) {
+ case '[':
+ *state += 1;
+ continue;
+ case ']':
+ *state -= 1;
+ if (*state > 0)
+ continue;
+ p = NULL;
+ break;
+ case ' ':
+ case '\t':
+ case '\r':
+ case ',':
+ case '-':
+ continue;
+ case '\n':
+ if (*state > 0 || p[1] == ' ')
+ continue;
+ p = NULL;
+ break;
+ case '\0':
+ p = NULL;
+ break;
+ default:
+ p0 = p;
+ p += strcspn(p0, " \t\r\n,]");
+ option = strdup_len(p0, p - p0);
+ break;
+ }
+ break;
+ }
+ *pp = p;
+ }
+ return option;
+}
+
+void update_stats(JSRuntime *rt, const char *filename) {
+ JSMemoryUsage stats;
+ JS_ComputeMemoryUsage(rt, &stats);
+ if (stats_count++ == 0) {
+ stats_avg = stats_all = stats_min = stats_max = stats;
+ stats_min_filename = strdup(filename);
+ stats_max_filename = strdup(filename);
+ } else {
+ if (stats_max.malloc_size < stats.malloc_size) {
+ stats_max = stats;
+ free(stats_max_filename);
+ stats_max_filename = strdup(filename);
+ }
+ if (stats_min.malloc_size > stats.malloc_size) {
+ stats_min = stats;
+ free(stats_min_filename);
+ stats_min_filename = strdup(filename);
+ }
+
+#define update(f) stats_avg.f = (stats_all.f += stats.f) / stats_count
+ update(malloc_count);
+ update(malloc_size);
+ update(memory_used_count);
+ update(memory_used_size);
+ update(atom_count);
+ update(atom_size);
+ update(str_count);
+ update(str_size);
+ update(obj_count);
+ update(obj_size);
+ update(prop_count);
+ update(prop_size);
+ update(shape_count);
+ update(shape_size);
+ update(js_func_count);
+ update(js_func_size);
+ update(js_func_code_size);
+ update(js_func_pc2line_count);
+ update(js_func_pc2line_size);
+ update(c_func_count);
+ update(array_count);
+ update(fast_array_count);
+ update(fast_array_elements);
+ }
+#undef update
+}
+
+int run_test_buf(const char *filename, const char *harness, namelist_t *ip,
+ char *buf, size_t buf_len, const char* error_type,
+ int eval_flags, BOOL is_negative, BOOL is_async,
+ BOOL can_block)
+{
+ JSRuntime *rt;
+ JSContext *ctx;
+ int i, ret;
+
+ rt = JS_NewRuntime();
+ if (rt == NULL) {
+ fatal(1, "JS_NewRuntime failure");
+ }
+ ctx = JS_NewContext(rt);
+ if (ctx == NULL) {
+ JS_FreeRuntime(rt);
+ fatal(1, "JS_NewContext failure");
+ }
+ JS_SetRuntimeInfo(rt, filename);
+
+ JS_SetCanBlock(rt, can_block);
+
+ /* loader for ES6 modules */
+ JS_SetModuleLoaderFunc(rt, NULL, js_module_loader_test, (void *)filename);
+
+ add_helpers(ctx);
+
+ for (i = 0; i < ip->count; i++) {
+ if (eval_file(ctx, harness, ip->array[i],
+ JS_EVAL_TYPE_GLOBAL | JS_EVAL_FLAG_STRIP)) {
+ fatal(1, "error including %s for %s", ip->array[i], filename);
+ }
+ }
+
+ ret = eval_buf(ctx, buf, buf_len, filename, TRUE, is_negative,
+ error_type, outfile, eval_flags, is_async);
+ ret = (ret != 0);
+
+ if (dump_memory) {
+ update_stats(rt, filename);
+ }
+#ifdef CONFIG_AGENT
+ js_agent_free(ctx);
+#endif
+ JS_FreeContext(ctx);
+ JS_FreeRuntime(rt);
+
+ test_count++;
+ if (ret) {
+ test_failed++;
+ if (outfile) {
+ /* do not output a failure number to minimize diff */
+ fprintf(outfile, " FAILED\n");
+ }
+ }
+ return ret;
+}
+
+int run_test(const char *filename, int index)
+{
+ char harnessbuf[1024];
+ char *harness;
+ char *buf;
+ size_t buf_len;
+ char *desc, *p;
+ char *error_type;
+ int ret, eval_flags, use_strict, use_nostrict;
+ BOOL is_negative, is_nostrict, is_onlystrict, is_async, is_module, skip;
+ BOOL can_block;
+ namelist_t include_list = { 0 }, *ip = &include_list;
+
+ is_nostrict = is_onlystrict = is_negative = is_async = is_module = skip = FALSE;
+ can_block = TRUE;
+ error_type = NULL;
+ buf = load_file(filename, &buf_len);
+
+ harness = harness_dir;
+
+ if (new_style) {
+ if (!harness) {
+ p = strstr(filename, "test/");
+ if (p) {
+ snprintf(harnessbuf, sizeof(harnessbuf), "%.*s%s",
+ (int)(p - filename), filename, "harness");
+ } else {
+ pstrcpy(harnessbuf, sizeof(harnessbuf), "");
+ }
+ harness = harnessbuf;
+ }
+ namelist_add(ip, NULL, "sta.js");
+ namelist_add(ip, NULL, "assert.js");
+ /* extract the YAML frontmatter */
+ desc = extract_desc(buf, '-');
+ if (desc) {
+ char *ifile, *option;
+ int state;
+ p = find_tag(desc, "includes:", &state);
+ if (p) {
+ while ((ifile = get_option(&p, &state)) != NULL) {
+ // skip unsupported harness files
+ if (find_word(harness_exclude, ifile)) {
+ skip |= 1;
+ } else {
+ namelist_add(ip, NULL, ifile);
+ }
+ free(ifile);
+ }
+ }
+ p = find_tag(desc, "flags:", &state);
+ if (p) {
+ while ((option = get_option(&p, &state)) != NULL) {
+ if (str_equal(option, "noStrict") ||
+ str_equal(option, "raw")) {
+ is_nostrict = TRUE;
+ skip |= (test_mode == TEST_STRICT);
+ }
+ else if (str_equal(option, "onlyStrict")) {
+ is_onlystrict = TRUE;
+ skip |= (test_mode == TEST_NOSTRICT);
+ }
+ else if (str_equal(option, "async")) {
+ is_async = TRUE;
+ skip |= skip_async;
+ }
+ else if (str_equal(option, "module")) {
+ is_module = TRUE;
+ skip |= skip_module;
+ }
+ else if (str_equal(option, "CanBlockIsFalse")) {
+ can_block = FALSE;
+ }
+ free(option);
+ }
+ }
+ p = find_tag(desc, "negative:", &state);
+ if (p) {
+ /* XXX: should extract the phase */
+ char *q = find_tag(p, "type:", &state);
+ if (q) {
+ while (isspace((unsigned char)*q))
+ q++;
+ error_type = strdup_len(q, strcspn(q, " \n"));
+ }
+ is_negative = TRUE;
+ }
+ p = find_tag(desc, "features:", &state);
+ if (p) {
+ while ((option = get_option(&p, &state)) != NULL) {
+ if (find_word(harness_features, option)) {
+ /* feature is enabled */
+ } else if (find_word(harness_skip_features, option)) {
+ /* skip disabled feature */
+ skip |= 1;
+ } else {
+ /* feature is not listed: skip and warn */
+ printf("%s:%d: unknown feature: %s\n", filename, 1, option);
+ skip |= 1;
+ }
+ free(option);
+ }
+ }
+ free(desc);
+ }
+ if (is_async)
+ namelist_add(ip, NULL, "doneprintHandle.js");
+ } else {
+ char *ifile;
+
+ if (!harness) {
+ p = strstr(filename, "test/");
+ if (p) {
+ snprintf(harnessbuf, sizeof(harnessbuf), "%.*s%s",
+ (int)(p - filename), filename, "test/harness");
+ } else {
+ pstrcpy(harnessbuf, sizeof(harnessbuf), "");
+ }
+ harness = harnessbuf;
+ }
+
+ namelist_add(ip, NULL, "sta.js");
+
+ /* include extra harness files */
+ for (p = buf; (p = strstr(p, "$INCLUDE(\"")) != NULL; p++) {
+ p += 10;
+ ifile = strdup_len(p, strcspn(p, "\""));
+ // skip unsupported harness files
+ if (find_word(harness_exclude, ifile)) {
+ skip |= 1;
+ } else {
+ namelist_add(ip, NULL, ifile);
+ }
+ free(ifile);
+ }
+
+ /* locate the old style configuration comment */
+ desc = extract_desc(buf, '*');
+ if (desc) {
+ if (strstr(desc, "@noStrict")) {
+ is_nostrict = TRUE;
+ skip |= (test_mode == TEST_STRICT);
+ }
+ if (strstr(desc, "@onlyStrict")) {
+ is_onlystrict = TRUE;
+ skip |= (test_mode == TEST_NOSTRICT);
+ }
+ if (strstr(desc, "@negative")) {
+ /* XXX: should extract the regex to check error type */
+ is_negative = TRUE;
+ }
+ free(desc);
+ }
+ }
+
+ if (outfile && index >= 0) {
+ fprintf(outfile, "%d: %s%s%s%s%s%s%s\n", index, filename,
+ is_nostrict ? " @noStrict" : "",
+ is_onlystrict ? " @onlyStrict" : "",
+ is_async ? " async" : "",
+ is_module ? " module" : "",
+ is_negative ? " @negative" : "",
+ skip ? " SKIPPED" : "");
+ fflush(outfile);
+ }
+
+ use_strict = use_nostrict = 0;
+ /* XXX: should remove 'test_mode' or simplify it just to force
+ strict or non strict mode for single file tests */
+ switch (test_mode) {
+ case TEST_DEFAULT_NOSTRICT:
+ if (is_onlystrict)
+ use_strict = 1;
+ else
+ use_nostrict = 1;
+ break;
+ case TEST_DEFAULT_STRICT:
+ if (is_nostrict)
+ use_nostrict = 1;
+ else
+ use_strict = 1;
+ break;
+ case TEST_NOSTRICT:
+ if (!is_onlystrict)
+ use_nostrict = 1;
+ break;
+ case TEST_STRICT:
+ if (!is_nostrict)
+ use_strict = 1;
+ break;
+ case TEST_ALL:
+ if (is_module) {
+ use_nostrict = 1;
+ } else {
+ if (!is_nostrict)
+ use_strict = 1;
+ if (!is_onlystrict)
+ use_nostrict = 1;
+ }
+ break;
+ }
+
+ if (skip || use_strict + use_nostrict == 0) {
+ test_skipped++;
+ ret = -2;
+ } else {
+ clock_t clocks;
+
+ if (is_module) {
+ eval_flags = JS_EVAL_TYPE_MODULE;
+ } else {
+ eval_flags = JS_EVAL_TYPE_GLOBAL;
+ }
+ clocks = clock();
+ ret = 0;
+ if (use_nostrict) {
+ ret = run_test_buf(filename, harness, ip, buf, buf_len,
+ error_type, eval_flags, is_negative, is_async,
+ can_block);
+ }
+ if (use_strict) {
+ ret |= run_test_buf(filename, harness, ip, buf, buf_len,
+ error_type, eval_flags | JS_EVAL_FLAG_STRICT,
+ is_negative, is_async, can_block);
+ }
+ clocks = clock() - clocks;
+ if (outfile && index >= 0 && clocks >= CLOCKS_PER_SEC / 10) {
+ /* output timings for tests that take more than 100 ms */
+ fprintf(outfile, " time: %d ms\n", (int)(clocks * 1000LL / CLOCKS_PER_SEC));
+ }
+ }
+ namelist_free(&include_list);
+ free(error_type);
+ free(buf);
+
+ return ret;
+}
+
+/* run a test when called by test262-harness+eshost */
+int run_test262_harness_test(const char *filename, BOOL is_module)
+{
+ JSRuntime *rt;
+ JSContext *ctx;
+ char *buf;
+ size_t buf_len;
+ int eval_flags, ret_code, ret;
+ JSValue res_val;
+ BOOL can_block;
+
+ outfile = stdout; /* for js_print */
+
+ rt = JS_NewRuntime();
+ if (rt == NULL) {
+ fatal(1, "JS_NewRuntime failure");
+ }
+ ctx = JS_NewContext(rt);
+ if (ctx == NULL) {
+ JS_FreeRuntime(rt);
+ fatal(1, "JS_NewContext failure");
+ }
+ JS_SetRuntimeInfo(rt, filename);
+
+ can_block = TRUE;
+ JS_SetCanBlock(rt, can_block);
+
+ /* loader for ES6 modules */
+ JS_SetModuleLoaderFunc(rt, NULL, js_module_loader_test, (void *)filename);
+
+ add_helpers(ctx);
+
+ buf = load_file(filename, &buf_len);
+
+ if (is_module) {
+ eval_flags = JS_EVAL_TYPE_MODULE;
+ } else {
+ eval_flags = JS_EVAL_TYPE_GLOBAL;
+ }
+ res_val = JS_Eval(ctx, buf, buf_len, filename, eval_flags);
+ ret_code = 0;
+ if (JS_IsException(res_val)) {
+ js_std_dump_error(ctx);
+ ret_code = 1;
+ } else {
+ JSValue promise = JS_UNDEFINED;
+ if (is_module) {
+ promise = res_val;
+ } else {
+ JS_FreeValue(ctx, res_val);
+ }
+ for(;;) {
+ JSContext *ctx1;
+ ret = JS_ExecutePendingJob(JS_GetRuntime(ctx), &ctx1);
+ if (ret < 0) {
+ js_std_dump_error(ctx1);
+ ret_code = 1;
+ } else if (ret == 0) {
+ break;
+ }
+ }
+ /* dump the error if the module returned an error. */
+ if (is_module) {
+ JSPromiseStateEnum state = JS_PromiseState(ctx, promise);
+ if (state == JS_PROMISE_REJECTED) {
+ JS_Throw(ctx, JS_PromiseResult(ctx, promise));
+ js_std_dump_error(ctx);
+ ret_code = 1;
+ }
+ }
+ JS_FreeValue(ctx, promise);
+ }
+ free(buf);
+#ifdef CONFIG_AGENT
+ js_agent_free(ctx);
+#endif
+ JS_FreeContext(ctx);
+ JS_FreeRuntime(rt);
+ return ret_code;
+}
+
+clock_t last_clock;
+
+void show_progress(int force) {
+ clock_t t = clock();
+ if (force || !last_clock || (t - last_clock) > CLOCKS_PER_SEC / 20) {
+ last_clock = t;
+ if (compact) {
+ static int last_test_skipped;
+ static int last_test_failed;
+ static int dots;
+ char c = '.';
+ if (test_skipped > last_test_skipped)
+ c = '-';
+ if (test_failed > last_test_failed)
+ c = '!';
+ last_test_skipped = test_skipped;
+ last_test_failed = test_failed;
+ fputc(c, stderr);
+ if (force || ++dots % 60 == 0) {
+ fprintf(stderr, " %d/%d/%d\n",
+ test_failed, test_count, test_skipped);
+ }
+ } else {
+ /* output progress indicator: erase end of line and return to col 0 */
+ fprintf(stderr, "%d/%d/%d\033[K\r",
+ test_failed, test_count, test_skipped);
+ }
+ fflush(stderr);
+ }
+}
+
+static int slow_test_threshold;
+
+void run_test_dir_list(namelist_t *lp, int start_index, int stop_index)
+{
+ int i;
+
+ namelist_sort(lp);
+ for (i = 0; i < lp->count; i++) {
+ const char *p = lp->array[i];
+ if (namelist_find(&exclude_list, p) >= 0) {
+ test_excluded++;
+ } else if (test_index < start_index) {
+ test_skipped++;
+ } else if (stop_index >= 0 && test_index > stop_index) {
+ test_skipped++;
+ } else {
+ int ti;
+ if (slow_test_threshold != 0) {
+ ti = get_clock_ms();
+ } else {
+ ti = 0;
+ }
+ run_test(p, test_index);
+ if (slow_test_threshold != 0) {
+ ti = get_clock_ms() - ti;
+ if (ti >= slow_test_threshold)
+ fprintf(stderr, "\n%s (%d ms)\n", p, ti);
+ }
+ show_progress(FALSE);
+ }
+ test_index++;
+ }
+ show_progress(TRUE);
+}
+
+void help(void)
+{
+ printf("run-test262 version " CONFIG_VERSION "\n"
+ "usage: run-test262 [options] {-f file ... | [dir_list] [index range]}\n"
+ "-h help\n"
+ "-a run tests in strict and nostrict modes\n"
+ "-m print memory usage summary\n"
+ "-n use new style harness\n"
+ "-N run test prepared by test262-harness+eshost\n"
+ "-s run tests in strict mode, skip @nostrict tests\n"
+ "-E only run tests from the error file\n"
+ "-C use compact progress indicator\n"
+ "-t show timings\n"
+ "-u update error file\n"
+ "-v verbose: output error messages\n"
+ "-T duration display tests taking more than 'duration' ms\n"
+ "-c file read configuration from 'file'\n"
+ "-d dir run all test files in directory tree 'dir'\n"
+ "-e file load the known errors from 'file'\n"
+ "-f file execute single test from 'file'\n"
+ "-r file set the report file name (default=none)\n"
+ "-x file exclude tests listed in 'file'\n");
+ exit(1);
+}
+
+char *get_opt_arg(const char *option, char *arg)
+{
+ if (!arg) {
+ fatal(2, "missing argument for option %s", option);
+ }
+ return arg;
+}
+
+int main(int argc, char **argv)
+{
+ int optind, start_index, stop_index;
+ BOOL is_dir_list;
+ BOOL only_check_errors = FALSE;
+ const char *filename;
+ const char *ignore = "";
+ BOOL is_test262_harness = FALSE;
+ BOOL is_module = FALSE;
+ clock_t clocks;
+
+#if !defined(_WIN32)
+ compact = !isatty(STDERR_FILENO);
+ /* Date tests assume California local time */
+ setenv("TZ", "America/Los_Angeles", 1);
+#endif
+
+ optind = 1;
+ while (optind < argc) {
+ char *arg = argv[optind];
+ if (*arg != '-')
+ break;
+ optind++;
+ if (strstr("-c -d -e -x -f -r -E -T", arg))
+ optind++;
+ if (strstr("-d -f", arg))
+ ignore = "testdir"; // run only the tests from -d or -f
+ }
+
+ /* cannot use getopt because we want to pass the command line to
+ the script */
+ optind = 1;
+ is_dir_list = TRUE;
+ while (optind < argc) {
+ char *arg = argv[optind];
+ if (*arg != '-')
+ break;
+ optind++;
+ if (str_equal(arg, "-h")) {
+ help();
+ } else if (str_equal(arg, "-m")) {
+ dump_memory++;
+ } else if (str_equal(arg, "-n")) {
+ new_style++;
+ } else if (str_equal(arg, "-s")) {
+ test_mode = TEST_STRICT;
+ } else if (str_equal(arg, "-a")) {
+ test_mode = TEST_ALL;
+ } else if (str_equal(arg, "-t")) {
+ show_timings++;
+ } else if (str_equal(arg, "-u")) {
+ update_errors++;
+ } else if (str_equal(arg, "-v")) {
+ verbose++;
+ } else if (str_equal(arg, "-C")) {
+ compact = 1;
+ } else if (str_equal(arg, "-c")) {
+ load_config(get_opt_arg(arg, argv[optind++]), ignore);
+ } else if (str_equal(arg, "-d")) {
+ enumerate_tests(get_opt_arg(arg, argv[optind++]));
+ } else if (str_equal(arg, "-e")) {
+ error_filename = get_opt_arg(arg, argv[optind++]);
+ } else if (str_equal(arg, "-x")) {
+ namelist_load(&exclude_list, get_opt_arg(arg, argv[optind++]));
+ } else if (str_equal(arg, "-f")) {
+ is_dir_list = FALSE;
+ } else if (str_equal(arg, "-r")) {
+ report_filename = get_opt_arg(arg, argv[optind++]);
+ } else if (str_equal(arg, "-E")) {
+ only_check_errors = TRUE;
+ } else if (str_equal(arg, "-T")) {
+ slow_test_threshold = atoi(get_opt_arg(arg, argv[optind++]));
+ } else if (str_equal(arg, "-N")) {
+ is_test262_harness = TRUE;
+ } else if (str_equal(arg, "--module")) {
+ is_module = TRUE;
+ } else {
+ fatal(1, "unknown option: %s", arg);
+ break;
+ }
+ }
+
+ if (optind >= argc && !test_list.count)
+ help();
+
+ if (is_test262_harness) {
+ return run_test262_harness_test(argv[optind], is_module);
+ }
+
+ error_out = stdout;
+ if (error_filename) {
+ error_file = load_file(error_filename, NULL);
+ if (only_check_errors && error_file) {
+ namelist_free(&test_list);
+ namelist_add_from_error_file(&test_list, error_file);
+ }
+ if (update_errors) {
+ free(error_file);
+ error_file = NULL;
+ error_out = fopen(error_filename, "w");
+ if (!error_out) {
+ perror_exit(1, error_filename);
+ }
+ }
+ }
+
+ update_exclude_dirs();
+
+ clocks = clock();
+
+ if (is_dir_list) {
+ if (optind < argc && !isdigit((unsigned char)argv[optind][0])) {
+ filename = argv[optind++];
+ namelist_load(&test_list, filename);
+ }
+ start_index = 0;
+ stop_index = -1;
+ if (optind < argc) {
+ start_index = atoi(argv[optind++]);
+ if (optind < argc) {
+ stop_index = atoi(argv[optind++]);
+ }
+ }
+ if (!report_filename || str_equal(report_filename, "none")) {
+ outfile = NULL;
+ } else if (str_equal(report_filename, "-")) {
+ outfile = stdout;
+ } else {
+ outfile = fopen(report_filename, "wb");
+ if (!outfile) {
+ perror_exit(1, report_filename);
+ }
+ }
+ run_test_dir_list(&test_list, start_index, stop_index);
+
+ if (outfile && outfile != stdout) {
+ fclose(outfile);
+ outfile = NULL;
+ }
+ } else {
+ outfile = stdout;
+ while (optind < argc) {
+ run_test(argv[optind++], -1);
+ }
+ }
+
+ clocks = clock() - clocks;
+
+ if (dump_memory) {
+ if (dump_memory > 1 && stats_count > 1) {
+ printf("\nMininum memory statistics for %s:\n\n", stats_min_filename);
+ JS_DumpMemoryUsage(stdout, &stats_min, NULL);
+ printf("\nMaximum memory statistics for %s:\n\n", stats_max_filename);
+ JS_DumpMemoryUsage(stdout, &stats_max, NULL);
+ }
+ printf("\nAverage memory statistics for %d tests:\n\n", stats_count);
+ JS_DumpMemoryUsage(stdout, &stats_avg, NULL);
+ printf("\n");
+ }
+
+ if (is_dir_list) {
+ fprintf(stderr, "Result: %d/%d error%s",
+ test_failed, test_count, test_count != 1 ? "s" : "");
+ if (test_excluded)
+ fprintf(stderr, ", %d excluded", test_excluded);
+ if (test_skipped)
+ fprintf(stderr, ", %d skipped", test_skipped);
+ if (error_file) {
+ if (new_errors)
+ fprintf(stderr, ", %d new", new_errors);
+ if (changed_errors)
+ fprintf(stderr, ", %d changed", changed_errors);
+ if (fixed_errors)
+ fprintf(stderr, ", %d fixed", fixed_errors);
+ }
+ fprintf(stderr, "\n");
+ if (show_timings)
+ fprintf(stderr, "Total time: %.3fs\n", (double)clocks / CLOCKS_PER_SEC);
+ }
+
+ if (error_out && error_out != stdout) {
+ fclose(error_out);
+ error_out = NULL;
+ }
+
+ namelist_free(&test_list);
+ namelist_free(&exclude_list);
+ namelist_free(&exclude_dir_list);
+ free(harness_dir);
+ free(harness_features);
+ free(harness_exclude);
+ free(error_file);
+
+ /* Signal that the error file is out of date. */
+ return new_errors || changed_errors || fixed_errors;
+}
diff --git a/src/couch_quickjs/quickjs/test262.conf b/src/couch_quickjs/quickjs/test262.conf
new file mode 100644
index 0000000..79e886e
--- /dev/null
+++ b/src/couch_quickjs/quickjs/test262.conf
@@ -0,0 +1,227 @@
+[config]
+# general settings for test262 ES6 version
+
+# framework style: old, new
+style=new
+
+# handle tests tagged as [noStrict]: yes, no, skip
+nostrict=yes
+
+# handle tests tagged as [strictOnly]: yes, no, skip
+strict=yes
+
+# test mode: default, default-nostrict, default-strict, strict, nostrict, both, all
+mode=default
+
+# handle tests flagged as [async]: yes, no, skip
+# for these, load 'harness/doneprintHandle.js' prior to test
+# and expect `print('Test262:AsyncTestComplete')` to be called for
+# successful termination
+async=yes
+
+# handle tests flagged as [module]: yes, no, skip
+module=yes
+
+# output error messages: yes, no
+verbose=yes
+
+# load harness files from this directory
+harnessdir=test262/harness
+
+# names of harness include files to skip
+#harnessexclude=
+
+# name of the error file for known errors
+errorfile=test262_errors.txt
+
+# exclude tests enumerated in this file (see also [exclude] section)
+#excludefile=test262_exclude.txt
+
+# report test results to this file
+reportfile=test262_report.txt
+
+# enumerate tests from this directory
+testdir=test262/test
+
+[features]
+# Standard language features and proposed extensions
+# list the features that are included
+# skipped features are tagged as such to avoid warnings
+# Keep this list alpha-sorted (:sort i in vim)
+
+__getter__
+__proto__
+__setter__
+AggregateError
+align-detached-buffer-semantics-with-web-reality
+arbitrary-module-namespace-names=skip
+array-find-from-last
+array-grouping
+Array.fromAsync=skip
+Array.prototype.at
+Array.prototype.flat
+Array.prototype.flatMap
+Array.prototype.flatten
+Array.prototype.includes
+Array.prototype.values
+ArrayBuffer
+arraybuffer-transfer=skip
+arrow-function
+async-functions
+async-iteration
+Atomics
+Atomics.waitAsync=skip
+BigInt
+caller
+change-array-by-copy
+class
+class-fields-private
+class-fields-private-in
+class-fields-public
+class-methods-private
+class-static-block
+class-static-fields-private
+class-static-fields-public
+class-static-methods-private
+cleanupSome=skip
+coalesce-expression
+computed-property-names
+const
+cross-realm
+DataView
+DataView.prototype.getFloat32
+DataView.prototype.getFloat64
+DataView.prototype.getInt16
+DataView.prototype.getInt32
+DataView.prototype.getInt8
+DataView.prototype.getUint16
+DataView.prototype.getUint32
+DataView.prototype.setUint8
+decorators=skip
+default-parameters
+destructuring-assignment
+destructuring-binding
+dynamic-import
+error-cause
+exponentiation
+export-star-as-namespace-from-module
+FinalizationGroup=skip
+FinalizationRegistry.prototype.cleanupSome=skip
+FinalizationRegistry=skip
+Float32Array
+Float64Array
+for-in-order
+for-of
+generators
+globalThis
+hashbang
+host-gc-required=skip
+import-assertions=skip
+import-attributes=skip
+import.meta
+Int16Array
+Int32Array
+Int8Array
+IsHTMLDDA
+iterator-helpers=skip
+json-modules=skip
+json-parse-with-source=skip
+json-superset
+legacy-regexp=skip
+let
+logical-assignment-operators
+Map
+new.target
+numeric-separator-literal
+object-rest
+object-spread
+Object.fromEntries
+Object.hasOwn
+Object.is
+optional-catch-binding
+optional-chaining
+Promise
+promise-with-resolvers
+Promise.allSettled
+Promise.any
+Promise.prototype.finally
+Proxy
+proxy-missing-checks
+Reflect
+Reflect.construct
+Reflect.set
+Reflect.setPrototypeOf
+regexp-dotall
+regexp-duplicate-named-groups=skip
+regexp-lookbehind
+regexp-match-indices
+regexp-named-groups
+regexp-unicode-property-escapes
+regexp-v-flag=skip
+resizable-arraybuffer=skip
+rest-parameters
+Set
+set-methods=skip
+ShadowRealm=skip
+SharedArrayBuffer
+string-trimming
+String.fromCodePoint
+String.prototype.at
+String.prototype.endsWith
+String.prototype.includes
+String.prototype.isWellFormed
+String.prototype.matchAll
+String.prototype.replaceAll
+String.prototype.toWellFormed
+String.prototype.trimEnd
+String.prototype.trimStart
+super
+Symbol
+Symbol.asyncIterator
+Symbol.hasInstance
+Symbol.isConcatSpreadable
+Symbol.iterator
+Symbol.match
+Symbol.matchAll
+Symbol.prototype.description
+Symbol.replace
+Symbol.search
+Symbol.species
+Symbol.split
+Symbol.toPrimitive
+Symbol.toStringTag
+Symbol.unscopables
+symbols-as-weakmap-keys=skip
+tail-call-optimization=skip
+template
+Temporal=skip
+top-level-await
+TypedArray
+TypedArray.prototype.at
+u180e
+Uint16Array
+Uint32Array
+Uint8Array
+Uint8ClampedArray
+WeakMap
+WeakRef=skip
+WeakSet
+well-formed-json-stringify
+
+[exclude]
+# list excluded tests and directories here
+
+# intl not supported
+test262/test/intl402/
+
+# incompatible with the "caller" feature
+test262/test/built-ins/Function/prototype/restricted-property-caller.js
+test262/test/built-ins/Function/prototype/restricted-property-arguments.js
+test262/test/built-ins/ThrowTypeError/unique-per-realm-function-proto.js
+
+# slow tests
+#test262/test/built-ins/RegExp/CharacterClassEscapes/
+#test262/test/built-ins/RegExp/property-escapes/
+
+[tests]
+# list test files or use config.testdir
diff --git a/src/couch_quickjs/quickjs/test262_errors.txt b/src/couch_quickjs/quickjs/test262_errors.txt
new file mode 100644
index 0000000..edf5372
--- /dev/null
+++ b/src/couch_quickjs/quickjs/test262_errors.txt
@@ -0,0 +1,8 @@
+test262/test/annexB/language/eval-code/direct/script-decl-lex-collision-in-sloppy-mode.js:13: Test262Error: Expected a SyntaxError to be thrown but no exception was thrown at all
+test262/test/language/expressions/assignment/target-member-computed-reference-null.js:32: Test262Error: Expected a DummyError but got a TypeError
+test262/test/language/expressions/assignment/target-member-computed-reference-null.js:32: strict mode: Test262Error: Expected a DummyError but got a TypeError
+test262/test/language/expressions/assignment/target-member-computed-reference-undefined.js:32: Test262Error: Expected a DummyError but got a TypeError
+test262/test/language/expressions/assignment/target-member-computed-reference-undefined.js:32: strict mode: Test262Error: Expected a DummyError but got a TypeError
+test262/test/language/expressions/in/private-field-invalid-assignment-target.js:23: unexpected error type: Test262: This statement should not be evaluated.
+test262/test/language/expressions/in/private-field-invalid-assignment-target.js:23: strict mode: unexpected error type: Test262: This statement should not be evaluated.
+test262/test/language/global-code/script-decl-lex-var-declared-via-eval-sloppy.js:13: Test262Error: variable Expected a SyntaxError to be thrown but no exception was thrown at all
diff --git a/src/couch_quickjs/quickjs/tests/test262.patch b/src/couch_quickjs/quickjs/tests/test262.patch
new file mode 100644
index 0000000..a46fa30
--- /dev/null
+++ b/src/couch_quickjs/quickjs/tests/test262.patch
@@ -0,0 +1,71 @@
+diff --git a/harness/atomicsHelper.js b/harness/atomicsHelper.js
+index 9c1217351e..3c24755558 100644
+--- a/harness/atomicsHelper.js
++++ b/harness/atomicsHelper.js
+@@ -227,10 +227,14 @@ $262.agent.waitUntil = function(typedArray, index, expected) {
+ * }
+ */
+ $262.agent.timeouts = {
+- yield: 100,
+- small: 200,
+- long: 1000,
+- huge: 10000,
++// yield: 100,
++// small: 200,
++// long: 1000,
++// huge: 10000,
++ yield: 20,
++ small: 20,
++ long: 100,
++ huge: 1000,
+ };
+
+ /**
+diff --git a/harness/regExpUtils.js b/harness/regExpUtils.js
+index be7039fda0..7b38abf8df 100644
+--- a/harness/regExpUtils.js
++++ b/harness/regExpUtils.js
+@@ -6,24 +6,27 @@ description: |
+ defines: [buildString, testPropertyEscapes, matchValidator]
+ ---*/
+
++if ($262 && typeof $262.codePointRange === "function") {
++ /* use C function to build the codePointRange (much faster with
++ slow JS engines) */
++ codePointRange = $262.codePointRange;
++} else {
++ codePointRange = function codePointRange(start, end) {
++ const codePoints = [];
++ let length = 0;
++ for (codePoint = start; codePoint < end; codePoint++) {
++ codePoints[length++] = codePoint;
++ }
++ return String.fromCodePoint.apply(null, codePoints);
++ }
++}
++
+ function buildString({ loneCodePoints, ranges }) {
+- const CHUNK_SIZE = 10000;
+- let result = Reflect.apply(String.fromCodePoint, null, loneCodePoints);
+- for (let i = 0; i < ranges.length; i++) {
+- const range = ranges[i];
+- const start = range[0];
+- const end = range[1];
+- const codePoints = [];
+- for (let length = 0, codePoint = start; codePoint <= end; codePoint++) {
+- codePoints[length++] = codePoint;
+- if (length === CHUNK_SIZE) {
+- result += Reflect.apply(String.fromCodePoint, null, codePoints);
+- codePoints.length = length = 0;
+- }
++ let result = String.fromCodePoint.apply(null, loneCodePoints);
++ for (const [start, end] of ranges) {
++ result += codePointRange(start, end + 1);
+ }
+- result += Reflect.apply(String.fromCodePoint, null, codePoints);
+- }
+- return result;
++ return result;
+ }
+
+ function testPropertyEscapes(regex, string, expression) {
diff --git a/src/couch_quickjs/rebar.config.script b/src/couch_quickjs/rebar.config.script
new file mode 100644
index 0000000..a741cac
--- /dev/null
+++ b/src/couch_quickjs/rebar.config.script
@@ -0,0 +1,88 @@
+% -*- mode: erlang;erlang-indent-level: 4;indent-tabs-mode: nil -*-
+% ex: ts=4 sw=4 ft=erlang et
+% Licensed under the Apache License, Version 2.0 (the "License"); you may not
+% use this file except in compliance with the License. You may obtain a copy of
+% the License at
+%
+% http://www.apache.org/licenses/LICENSE-2.0
+%
+% Unless required by applicable law or agreed to in writing, software
+% distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+% WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+% License for the specific language governing permissions and limitations under
+% the License.
+
+
+Unix = "(linux|darwin|freebsd)".
+Windows = "win32".
+All = "(linux|darwin|freebsd|win32)".
+
+% Windows is "special" so we treat it "specially"
+Msys = "msys2_shell.cmd -defterm -no-start -ucrt64 -here -lc ".
+
+PreHooks = [
+ {Unix, compile, "make CONFIG_LTO=y -C quickjs -j8 libquickjs.lto.a qjsc"},
+ {Windows, compile, Msys ++ "'make -C quickjs qjsc'"},
+ {All, compile, "escript build_js.escript compile"}
+].
+
+PostHooks = [
+ {Unix, clean, "make -C quickjs clean"},
+ {Windows, clean, Msys ++ "'make -C quickjs clean'"},
+ {All, clean, "escript build_js.escript clean"}
+].
+
+UnixEnv = [
+ {"CFLAGS", "$CFLAGS -flto -g -Wall -DCONFIG_LTO=y -O2 -Iquickjs"},
+ {"LDFLAGS", "$LDFLAGS -flto -lm quickjs/libquickjs.lto.a"},
+ % Clear ERL flags out as we're not actually building a NIF or driver here
+ {"ERL_CFLAGS", ""},
+ {"ERL_LDFLAGS", ""},
+ {"EXE_CFLAGS", ""},
+ {"EXE_LDFLAGS", ""}
+].
+
+WindowsEnv = [
+ {"CFLAGS", "-D_GNU_SOURCE -DCONFIG_BIGNUM -O2 -fwrapv -DCONFIG_VERSION=\\\"0\\\" -Iquickjs"},
+ {"EXE_CC_TEMPLATE", "gcc.exe -g -c $CFLAGS $PORT_IN_FILES -o $PORT_OUT_FILE"},
+ {"EXE_LINK_TEMPLATE", "gcc.exe -g -lm $PORT_IN_FILES $LDFLAGS -o $PORT_OUT_FILE"}
+].
+
+% couchjs_*_bytecode.c sources are auto-generated by build_js.escript
+%
+UnixMainjsSrc = ["c_src/couchjs.c", "c_src/couchjs_mainjs_bytecode.c"],
+UnixCoffeeSrc = ["c_src/couchjs.c", "c_src/couchjs_coffee_bytecode.c"],
+
+WindowsBaseSrc = [
+ "quickjs/quickjs.c",
+ "quickjs/libregexp.c",
+ "quickjs/libunicode.c",
+ "quickjs/cutils.c",
+ "quickjs/libbf.c",
+ "quickjs/quickjs-libc.c"
+].
+
+WindowsMainjsSrc = WindowsBaseSrc ++ UnixMainjsSrc.
+WindowsCoffeeSrc = WindowsBaseSrc ++ UnixCoffeeSrc.
+
+PortSpecs = [
+ {Unix, "priv/couchjs_mainjs", UnixMainjsSrc, [{env, UnixEnv}]},
+ {Unix, "priv/couchjs_coffee", UnixCoffeeSrc, [{env, UnixEnv}]},
+ {Windows, "priv/couchjs_mainjs.exe", WindowsMainjsSrc, [{env, WindowsEnv}]},
+ {Windows, "priv/couchjs_coffee.exe", WindowsCoffeeSrc, [{env, WindowsEnv}]}
+].
+
+AddConfig = [
+ {port_specs, PortSpecs},
+ {pre_hooks, PreHooks},
+ {post_hooks, PostHooks}
+].
+
+lists:foldl(fun({K, V}, CfgAcc) ->
+ case lists:keyfind(K, 1, CfgAcc) of
+ {K, Existent} when is_list(Existent) andalso is_list(V) ->
+ lists:keystore(K, 1, CfgAcc, {K, Existent ++ V});
+ false ->
+ lists:keystore(K, 1, CfgAcc, {K, V})
+ end
+end, CONFIG, AddConfig).
diff --git a/src/couch_quickjs/src/couch_quickjs.app.src b/src/couch_quickjs/src/couch_quickjs.app.src
new file mode 100644
index 0000000..7577b62
--- /dev/null
+++ b/src/couch_quickjs/src/couch_quickjs.app.src
@@ -0,0 +1,18 @@
+% Licensed under the Apache License, Version 2.0 (the "License"); you may not
+% use this file except in compliance with the License. You may obtain a copy of
+% the License at
+%
+% http://www.apache.org/licenses/LICENSE-2.0
+%
+% Unless required by applicable law or agreed to in writing, software
+% distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+% WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+% License for the specific language governing permissions and limitations under
+% the License.
+
+{application, couch_quickjs, [
+ {description, "QuickJS"},
+ {vsn, git},
+ {registered, []},
+ {applications, [kernel, stdlib, config]}
+]}.
diff --git a/src/couch_quickjs/src/couch_quickjs.erl b/src/couch_quickjs/src/couch_quickjs.erl
new file mode 100644
index 0000000..94307f6
--- /dev/null
+++ b/src/couch_quickjs/src/couch_quickjs.erl
@@ -0,0 +1,58 @@
+% Licensed under the Apache License, Version 2.0 (the "License"); you may not
+% use this file except in compliance with the License. You may obtain a copy of
+% the License at
+%
+% http://www.apache.org/licenses/LICENSE-2.0
+%
+% Unless required by applicable law or agreed to in writing, software
+% distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+% WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+% License for the specific language governing permissions and limitations under
+% the License.
+
+% Reads CouchDB's ini file and gets queried for configuration parameters.
+% This module is initialized with a list of ini files that it consecutively
+% reads Key/Value pairs from and saves them in an ets table. If more an one
+% ini file is specified, the last one is used to write changes that are made
+% with store/2 back to that ini file.
+
+-module(couch_quickjs).
+
+-export([
+ mainjs_cmd/0,
+ coffee_cmd/0
+]).
+
+mainjs_cmd() ->
+ Path = filename:join([priv_dir(), "couchjs_mainjs" ++ ext()]),
+ check_path(Path),
+ apply_config(Path).
+
+coffee_cmd() ->
+ Path = filename:join([priv_dir(), "couchjs_coffee" ++ ext()]),
+ check_path(Path),
+ apply_config(Path).
+
+priv_dir() ->
+ case code:priv_dir(couch_quickjs) of
+ {error, bad_name} -> error({?MODULE, app_dir_not_found});
+ Dir when is_list(Dir) -> Dir
+ end.
+
+check_path(Path) ->
+ case filelib:is_file(Path) of
+ true -> ok;
+ false -> error({?MODULE, {missing, Path}})
+ end.
+
+apply_config(Path) ->
+ case config:get("quickjs", "memory_limit_bytes") of
+ Val when is_list(Val) -> Path ++ " -M " ++ Val;
+ undefined -> Path
+ end.
+
+ext() ->
+ case os:type() of
+ {win32, _} -> ".exe";
+ {_, _} -> ""
+ end.
diff --git a/src/couch_quickjs/src/couch_quickjs_scanner_plugin.erl b/src/couch_quickjs/src/couch_quickjs_scanner_plugin.erl
new file mode 100644
index 0000000..0ea4f61
--- /dev/null
+++ b/src/couch_quickjs/src/couch_quickjs_scanner_plugin.erl
@@ -0,0 +1,493 @@
+% Licensed under the Apache License, Version 2.0 (the "License"); you may not
+% use this file except in compliance with the License. You may obtain a copy of
+% the License at
+%
+% http://www.apache.org/licenses/LICENSE-2.0
+%
+% Unless required by applicable law or agreed to in writing, software
+% distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+% WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+% License for the specific language governing permissions and limitations under
+% the License.
+
+-module(couch_quickjs_scanner_plugin).
+-behaviour(couch_scanner_plugin).
+
+-export([
+ start/2,
+ resume/2,
+ complete/1,
+ checkpoint/1,
+ db/2,
+ ddoc/3,
+ shards/2,
+ db_opened/2,
+ doc_id/3,
+ doc/3,
+ db_closing/2
+]).
+
+-include_lib("couch_scanner/include/couch_scanner_plugin.hrl").
+
+-record(st, {
+ sid,
+ ddocs = #{},
+ docs = [],
+ docs_size = 0,
+ qjs_proc,
+ sm_proc,
+ ddoc_cnt = 0,
+ doc_cnt = 0,
+ doc_step = 0,
+ max_ddocs = 100,
+ max_shards = 4,
+ max_docs = 1000,
+ max_step = 1000,
+ % These match defaults in couch_mrview_updater
+ max_batch_items = 100,
+ max_batch_size = 16777216
+}).
+
+% DDoc fields
+
+-define(FILTERS, <<"filters">>).
+-define(VIEWS, <<"views">>).
+-define(MAP, <<"map">>).
+-define(REDUCE, <<"reduce">>).
+-define(LIB, <<"lib">>).
+-define(VDU, <<"validate_doc_update">>).
+
+% Behavior callbacks
+
+start(SId, #{}) ->
+ case couch_server:with_spidermonkey() of
+ true ->
+ ?WARN("starting.", [], #{sid => SId}),
+ {ok, init_config(#st{sid = SId})};
+ false ->
+ ?WARN("not starting. Spidermonkey not enabled", [], #{}),
+ skip
+ end.
+
+resume(SId, #{}) ->
+ case couch_server:with_spidermonkey() of
+ true ->
+ ?WARN("resuming", [], #{sid => SId}),
+ {ok, init_config(#st{sid = SId})};
+ false ->
+ ?WARN("not resuming. Spidermonkey not enabled", [], #{}),
+ skip
+ end.
+
+complete(#st{sid = SId}) ->
+ ?WARN("completed", [], #{sid => SId}),
+ {ok, #{}}.
+
+checkpoint(#st{sid = SId}) ->
+ ?INFO(#{sid => SId}),
+ {ok, #{<<"sid">> => SId}}.
+
+db(#st{sid = SId} = St, DbName) ->
+ St1 = reset_per_db_state(St),
+ ?INFO(#{sid => SId, db => DbName}),
+ {ok, St1}.
+
+ddoc(#st{ddoc_cnt = C, max_ddocs = M} = St, _, _) when C > M ->
+ {stop, St};
+ddoc(#st{sid = SId} = St, DbName, #doc{id = DDocId} = DDoc) ->
+ ?INFO(#{sid => SId, db => DbName, ddoc => DDocId}),
+ #st{ddoc_cnt = Cnt} = St,
+ St1 = St#st{ddoc_cnt = Cnt + 1},
+ #doc{body = {Props = [_ | _]}} = DDoc,
+ case couch_util:get_value(<<"language">>, Props, <<"javascript">>) of
+ <<"javascript">> -> {ok, process_ddoc(St1, DbName, DDoc)};
+ _ -> {ok, St1}
+ end.
+
+shards(#st{max_shards = Max, ddocs = DDocs} = St, Shards) ->
+ case {map_size(DDocs), lists:sublist(Shards, Max)} of
+ {0, _} -> {[], St};
+ {_, []} -> {[], St};
+ {_, Shards1} -> {Shards1, St}
+ end.
+
+db_opened(#st{} = St, Db) ->
+ #st{max_docs = MaxDocs, max_step = MaxStep} = St,
+ {ok, DocTotal} = couch_db:get_doc_count(Db),
+ Step = min(MaxStep, max(1, DocTotal div MaxDocs)),
+ {ok, St#st{doc_cnt = 0, doc_step = Step, docs = []}}.
+
+doc_id(#st{} = St, <<?DESIGN_DOC_PREFIX, _/binary>>, _Db) ->
+ {skip, St};
+doc_id(#st{doc_cnt = C, max_docs = M} = St, _DocId, _Db) when C > M ->
+ {stop, St};
+doc_id(#st{doc_cnt = C, doc_step = S} = St, _DocId, _Db) when C rem S /= 0 ->
+ {skip, St#st{doc_cnt = C + 1}};
+doc_id(#st{doc_cnt = C} = St, _DocId, _Db) ->
+ {ok, St#st{doc_cnt = C + 1}}.
+
+doc(#st{} = St, Db, #doc{id = DocId} = Doc) ->
+ #st{
+ sid = SId,
+ ddocs = DDocs,
+ docs = Docs,
+ docs_size = DocsSize,
+ max_batch_items = MaxItems,
+ max_batch_size = MaxSize
+ } = St,
+ JsonDoc = couch_query_servers:json_doc(Doc),
+ DDocFun = fun(DDocId, #{} = DDoc) ->
+ try
+ Filters = maps:get(?FILTERS, DDoc, undefined),
+ filter_doc_validate(St, DDocId, Filters, JsonDoc),
+ VDU = maps:get(?VDU, DDoc, undefined),
+ vdu_doc_validate(St, DDocId, VDU, JsonDoc)
+ catch
+ throw:{validate, Error} ->
+ Meta = #{sid => SId, db => Db, ddoc => DDocId, doc => DocId},
+ ?WARN("doc validation failed ~p", [Error], Meta)
+ end
+ end,
+ maps:foreach(DDocFun, DDocs),
+ DocsSize1 = DocsSize + ?term_size(JsonDoc),
+ case DocsSize1 < MaxSize andalso length(Docs) < MaxItems of
+ true ->
+ St1 = St#st{docs = [JsonDoc | Docs], docs_size = DocsSize1},
+ {ok, St1};
+ false ->
+ {_Db, St1} = maps:fold(fun views_validate/3, {Db, St}, DDocs),
+ St2 = St1#st{docs = [], docs_size = 0},
+ {ok, St2}
+ end.
+
+db_closing(#st{docs = []} = St, _Db) ->
+ {ok, St#st{doc_cnt = 0, doc_step = 0}};
+db_closing(#st{ddocs = DDocs} = St, Db) ->
+ {_Db, St1} = maps:fold(fun views_validate/3, {Db, St}, DDocs),
+ {ok, St1#st{doc_cnt = 0, doc_step = 0, docs = []}}.
+
+% Private
+
+init_config(#st{} = St) ->
+ St#st{
+ max_ddocs = cfg_int("max_ddocs", St#st.max_ddocs),
+ max_shards = cfg_int("max_shards", St#st.max_shards),
+ max_docs = cfg_int("max_docs", St#st.max_docs),
+ max_step = cfg_int("max_step", St#st.max_step),
+ max_batch_items = cfg_int("max_batch_items", St#st.max_batch_items),
+ max_batch_size = cfg_int("max_batch_size", St#st.max_batch_size)
+ }.
+
+cfg_int(Key, Default) when is_list(Key), is_integer(Default) ->
+ config:get_integer(atom_to_list(?MODULE), Key, Default).
+
+process_ddoc(#st{} = St, DbName, #doc{} = DDoc0) ->
+ #st{sid = SId, ddocs = DDocs} = St,
+ #doc{id = DDocId, body = Body} = DDoc0,
+ DDoc = couch_scanner_util:ejson_map(Body),
+ case map_size(DDoc) > 0 of
+ true ->
+ St1 = start_or_reset_procs(St),
+ try
+ lib_load(St1, maps:get(?LIB, DDoc, undefined)),
+ views_load(St1, maps:get(?VIEWS, DDoc, undefined)),
+ filters_load(St1, maps:get(?FILTERS, DDoc, undefined)),
+ vdu_load(St1, maps:get(?VDU, DDoc, undefined)),
+ reset_procs(St1),
+ teach_ddoc_validate(St1, DDocId, DDoc),
+ St1#st{ddocs = DDocs#{DDocId => DDoc}}
+ catch
+ throw:{validate, Error} ->
+ Meta = #{sid => SId, db => DbName, ddoc => DDocId},
+ ?WARN("ddoc validation failed ~p", [Error], Meta),
+ St1
+ end;
+ false ->
+ St
+ end.
+
+views_validate(DDocId, #{?VIEWS := Views} = DDoc, {Db, #st{} = St0}) when
+ map_size(Views) > 0
+->
+ St = reset_procs(St0),
+ #st{sid = SId, docs = Docs} = St,
+ try
+ lib_load(St, maps:get(?LIB, DDoc, undefined)),
+ ViewList = lists:sort(maps:to_list(Views)),
+ Fun = fun({Name, #{?MAP := Src}}) -> add_fun_load(St, Name, Src) end,
+ lists:foreach(Fun, ViewList),
+ {[_ | _], St1 = #st{}} = lists:foldl(fun mapred_fold/2, {ViewList, St}, Docs),
+ {Db, St1}
+ catch
+ throw:{validate, Error} ->
+ Meta = #{sid => SId, db => Db, ddoc => DDocId},
+ ?WARN("view validation failed ~p", [Error], Meta),
+ {Db, St}
+ end;
+views_validate(_DDocId, #{} = _DDoc, {Db, #st{} = St}) ->
+ % No views
+ {Db, St}.
+
+mapred_fold({Props = [_ | _]} = Doc, {ViewList = [_ | _], #st{} = St}) ->
+ #st{qjs_proc = Qjs, sm_proc = Sm} = St,
+ DocId = couch_util:get_value(<<"_id">>, Props),
+ QjsMapRes = map_doc(Qjs, Doc),
+ SmMapRes = map_doc(Sm, Doc),
+ case QjsMapRes == SmMapRes of
+ true -> ok;
+ false -> throw({validate, {map_doc, DocId, QjsMapRes, SmMapRes}})
+ end,
+ case QjsMapRes of
+ [_ | _] ->
+ MapResZip = lists:zip(ViewList, QjsMapRes),
+ ReduceKVs = lists:filtermap(fun reduce_filter_map/1, MapResZip),
+ view_reduce_validate(St, ReduceKVs);
+ _ ->
+ ok
+ end,
+ {ViewList, St}.
+
+reset_per_db_state(#st{qjs_proc = QjsProc, sm_proc = SmProc} = St) ->
+ proc_stop(QjsProc),
+ proc_stop(SmProc),
+ St#st{
+ ddocs = #{},
+ docs = [],
+ qjs_proc = undefined,
+ sm_proc = undefined,
+ ddoc_cnt = 0
+ }.
+
+start_or_reset_procs(#st{} = St) ->
+ St1 = start_or_reset_qjs_proc(St),
+ start_or_reset_sm_proc(St1).
+
+start_or_reset_qjs_proc(#st{qjs_proc = undefined} = St) ->
+ Cmd = couch_quickjs:mainjs_cmd(),
+ {ok, Pid} = couch_os_process:start_link(Cmd),
+ Proc = proc(Pid),
+ true = proc_reset(Proc),
+ St#st{qjs_proc = Proc};
+start_or_reset_qjs_proc(#st{qjs_proc = #proc{} = Proc} = St) ->
+ try
+ true = proc_reset(Proc),
+ St
+ catch
+ Tag:Err ->
+ ?WARN("failed to reset QuickJS proc ~p:~p", [Tag, Err]),
+ proc_stop(Proc),
+ start_or_reset_qjs_proc(St#st{qjs_proc = undefined})
+ end.
+
+start_or_reset_sm_proc(#st{sm_proc = undefined} = St) ->
+ Cmd = os:getenv("COUCHDB_QUERY_SERVER_JAVASCRIPT"),
+ {ok, Pid} = couch_os_process:start_link(Cmd),
+ Proc = proc(Pid),
+ true = proc_reset(Proc),
+ St#st{sm_proc = Proc};
+start_or_reset_sm_proc(#st{sm_proc = #proc{} = Proc} = St) ->
+ try
+ true = proc_reset(Proc),
+ St
+ catch
+ Tag:Err ->
+ ?WARN("failed to reset Spidermonkey proc ~p:~p", [Tag, Err]),
+ proc_stop(Proc),
+ start_or_reset_sm_proc(St#st{sm_proc = undefined})
+ end.
+
+lib_load(#st{}, undefined) ->
+ ok;
+lib_load(#st{qjs_proc = Qjs, sm_proc = Sm}, #{} = Lib) ->
+ QjsRes = add_lib(Qjs, Lib),
+ SmRes = add_lib(Sm, Lib),
+ case QjsRes == SmRes of
+ true -> ok;
+ false -> throw({validate, {add_lib, QjsRes, SmRes}})
+ end.
+
+views_load(#st{}, undefined) ->
+ ok;
+views_load(#st{} = St, #{} = Views) ->
+ Fun = fun(Name, #{} = View) -> view_load(St, Name, View) end,
+ maps:foreach(Fun, Views).
+
+view_load(#st{} = St, Name, View) ->
+ #{?MAP := MapSrc} = View,
+ add_fun_load(St, Name, MapSrc),
+ RedSrc = maps:get(?REDUCE, View, undefined),
+ add_fun_load(St, Name, RedSrc).
+
+add_fun_load(#st{}, _, undefined) ->
+ ok;
+add_fun_load(#st{qjs_proc = Qjs, sm_proc = Sm}, Name, Src) ->
+ QjsRes = add_fun(Qjs, Src),
+ SmRes = add_fun(Sm, Src),
+ case QjsRes == SmRes of
+ true -> ok;
+ false -> throw({validate, {add_fun, Name, QjsRes, SmRes}})
+ end.
+
+reduce_filter_map({{_Name, #{?REDUCE := <<"_", _/binary>>}}, _KVs}) ->
+ % Likely built-in view
+ false;
+reduce_filter_map({{Name, #{?REDUCE := <<_/binary>> = Src}}, [_ | _] = KVs}) ->
+ {true, {Name, Src, KVs}};
+reduce_filter_map({{_Name, #{}}, _KVs}) ->
+ false.
+
+view_reduce_validate(#st{} = St, ReduceKVs) ->
+ #st{qjs_proc = Qjs, sm_proc = Sm} = St,
+ RedFun = fun({Name, RedSrc, KVs}) ->
+ QjsRedRes = reduce(Qjs, RedSrc, KVs),
+ SmRedRes = reduce(Sm, RedSrc, KVs),
+ case QjsRedRes == SmRedRes of
+ true -> ok;
+ false -> throw({validate, {reduce, Name, QjsRedRes, SmRedRes}})
+ end,
+ case QjsRedRes of
+ [true, [_ | _] = RedVals] ->
+ QjsRRedRes = rereduce(Qjs, RedSrc, RedVals),
+ SmRRedRes = rereduce(Sm, RedSrc, RedVals),
+ case QjsRRedRes == SmRRedRes of
+ true -> ok;
+ false -> throw({validate, {rereduce, Name, QjsRRedRes, SmRRedRes}})
+ end;
+ _ ->
+ ok
+ end
+ end,
+ lists:foreach(RedFun, ReduceKVs).
+
+filters_load(#st{}, undefined) ->
+ ok;
+filters_load(#st{} = St, #{} = Filters) ->
+ Fun = fun(Name, Filter) -> filter_load(St, Name, Filter) end,
+ maps:foreach(Fun, Filters).
+
+filter_load(#st{qjs_proc = Qjs, sm_proc = Sm}, Name, Filter) ->
+ QjsRes = add_fun(Qjs, Filter),
+ SmRes = add_fun(Sm, Filter),
+ case QjsRes == SmRes of
+ true -> ok;
+ false -> throw({validate, {filter, Name, QjsRes, SmRes}})
+ end.
+
+filter_doc_validate(#st{}, _, undefined, _) ->
+ ok;
+filter_doc_validate(#st{} = St, DDocId, #{} = Filters, Doc) ->
+ #st{qjs_proc = Qjs, sm_proc = Sm} = St,
+ Fun = fun(FName, _) ->
+ QjsRes = filter_doc(Qjs, DDocId, FName, Doc),
+ SmRes = filter_doc(Sm, DDocId, FName, Doc),
+ case QjsRes == SmRes of
+ true -> ok;
+ false -> throw({validate, {filter_doc, FName, QjsRes, SmRes}})
+ end
+ end,
+ maps:foreach(Fun, Filters).
+
+vdu_load(#st{}, undefined) ->
+ ok;
+vdu_load(#st{qjs_proc = Qjs, sm_proc = Sm}, VDU) ->
+ QjsRes = add_fun(Qjs, VDU),
+ SmRes = add_fun(Sm, VDU),
+ case QjsRes == SmRes of
+ true -> ok;
+ false -> throw({validate, {vdu, QjsRes, SmRes}})
+ end.
+
+vdu_doc_validate(#st{} = St, DDocId, _VDU, Doc) ->
+ #st{qjs_proc = Qjs, sm_proc = Sm} = St,
+ QjsRes = vdu_doc(Qjs, DDocId, Doc),
+ SmRes = vdu_doc(Sm, DDocId, Doc),
+ case QjsRes == SmRes of
+ true -> ok;
+ false -> throw({validate, {vdu_doc, QjsRes, SmRes}})
+ end.
+
+teach_ddoc_validate(#st{qjs_proc = Qjs, sm_proc = Sm}, DDocId, DDoc) ->
+ QjsRes = teach_ddoc(Qjs, DDocId, DDoc),
+ SmRes = teach_ddoc(Sm, DDocId, DDoc),
+ case QjsRes == SmRes of
+ true -> ok;
+ false -> throw({validate, {teach_ddoc, DDocId, QjsRes, SmRes}})
+ end.
+
+reset_procs(#st{qjs_proc = #proc{} = QjsProc, sm_proc = #proc{} = SmProc} = St) ->
+ true = proc_reset(QjsProc),
+ true = proc_reset(SmProc),
+ St.
+
+% Proc commands
+
+add_lib(#proc{} = Proc, #{} = Lib) ->
+ true = prompt(Proc, [<<"add_lib">>, Lib]).
+
+map_doc(#proc{} = Proc, {[_ | _]} = Doc) ->
+ prompt(Proc, [<<"map_doc">>, Doc]).
+
+reduce(#proc{} = Proc, <<_/binary>> = Src, KVs) ->
+ prompt(Proc, [<<"reduce">>, [Src], KVs]).
+
+rereduce(#proc{} = Proc, <<_/binary>> = Src, Vals) ->
+ prompt(Proc, [<<"rereduce">>, [Src], Vals]).
+
+add_fun(#proc{}, undefined) ->
+ ok;
+add_fun(#proc{}, <<"_", _/binary>>) ->
+ % Built-in reduce likely
+ ok;
+add_fun(#proc{} = Proc, <<_/binary>> = FunSrc) ->
+ prompt(Proc, [<<"add_fun">>, FunSrc]).
+
+filter_doc(#proc{} = Proc, DDocId, FName, {[_ | _]} = Doc) ->
+ prompt(Proc, [<<"ddoc">>, DDocId, [<<"filters">>, FName], [[Doc], #{}]]).
+
+vdu_doc(#proc{} = Proc, DDocId, {[_ | _]} = Doc) ->
+ prompt(Proc, [<<"ddoc">>, DDocId, [<<"validate_doc_update">>], [Doc, Doc]]).
+
+teach_ddoc(#proc{} = Proc, DDocId, DDoc) ->
+ true = prompt(Proc, [<<"ddoc">>, <<"new">>, DDocId, DDoc]).
+
+proc_reset(#proc{} = Proc) ->
+ Timeout = config:get_integer("couchdb", "os_process_timeout", 5000),
+ Cfg = [{<<"reduce_limit">>, true}, {<<"timeout">>, Timeout}],
+ Result = prompt(Proc, [<<"reset">>, {Cfg}]),
+ proc_set_timeout(Proc, Timeout),
+ Result.
+
+% End proc commands
+
+% Proc utils
+
+proc(Pid) ->
+ #proc{
+ pid = Pid,
+ prompt_fun = {couch_os_process, prompt},
+ set_timeout_fun = {couch_os_process, set_timeout},
+ stop_fun = {couch_os_process, stop}
+ }.
+
+prompt(#proc{} = Proc, Prompt) ->
+ try
+ couch_query_servers:proc_prompt(Proc, Prompt)
+ catch
+ Tag:Err ->
+ {error, {Tag, Err}}
+ end.
+
+proc_set_timeout(Proc, Timeout) ->
+ {Mod, Func} = Proc#proc.set_timeout_fun,
+ apply(Mod, Func, [Proc#proc.pid, Timeout]).
+
+proc_stop(undefined) ->
+ ok;
+proc_stop(#proc{pid = Pid} = Proc) ->
+ unlink(Pid),
+ Ref = monitor(process, Pid),
+ {Mod, Func} = Proc#proc.stop_fun,
+ apply(Mod, Func, [Pid]),
+ receive
+ {'DOWN', Ref, _, _, _} -> ok
+ end.
diff --git a/src/couch_quickjs/test/couch_quickjs_scanner_plugin_tests.erl b/src/couch_quickjs/test/couch_quickjs_scanner_plugin_tests.erl
new file mode 100644
index 0000000..8118bf6
--- /dev/null
+++ b/src/couch_quickjs/test/couch_quickjs_scanner_plugin_tests.erl
@@ -0,0 +1,167 @@
+% Licensed under the Apache License, Version 2.0 (the "License"); you may not
+% use this file except in compliance with the License. You may obtain a copy of
+% the License at
+%
+% http://www.apache.org/licenses/LICENSE-2.0
+%
+% Unless required by applicable law or agreed to in writing, software
+% distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+% WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+% License for the specific language governing permissions and limitations under
+% the License.
+
+-module(couch_quickjs_scanner_plugin_tests).
+
+-include_lib("couch/include/couch_eunit.hrl").
+-include_lib("couch/include/couch_db.hrl").
+
+couch_quickjs_scanner_plugin_test_() ->
+ {
+ foreach,
+ fun setup/0,
+ fun teardown/1,
+ [
+ ?TDEF_FE(t_basic, 10)
+ ]
+ }.
+
+-define(DOC1, <<"doc1">>).
+-define(DOC2, <<"doc2">>).
+-define(DOC3, <<"doc3">>).
+-define(DOC4, <<"doc4">>).
+-define(DOC5, <<"doc5">>).
+-define(DDOC1, <<"_design/ddoc1">>).
+
+-define(PLUGIN, couch_quickjs_scanner_plugin).
+
+setup() ->
+ {module, _} = code:ensure_loaded(?PLUGIN),
+ meck:new(?PLUGIN, [passthrough]),
+ meck:new(couch_scanner_server, [passthrough]),
+ meck:new(couch_scanner_util, [passthrough]),
+ Ctx = test_util:start_couch([fabric, couch_scanner]),
+ DbName = ?tempdb(),
+ ok = fabric:create_db(DbName, [{q, "2"}, {n, "1"}]),
+ ok = add_doc(DbName, ?DOC1, #{a => x}),
+ ok = add_doc(DbName, ?DOC2, #{a => y}),
+ ok = add_doc(DbName, ?DOC3, #{a => z}),
+ ok = add_doc(DbName, ?DOC4, #{a => w}),
+ ok = add_doc(DbName, ?DOC5, #{a => u}),
+ ok = add_doc(DbName, ?DDOC1, #{
+ views => #{
+ v => #{
+ map => <<
+ "function(doc) {\n"
+ " if(doc.a == 'x') {\n"
+ " r = doc.a.search(/(x+)/); emit(r, RegExp.$1)\n"
+ " } else {\n"
+ " emit(doc.a, doc.a);\n"
+ " }\n"
+ "}"
+ >>,
+ reduce => <<
+ "function(ks, vs, rereduce) {\n"
+ " v0 = vs[0];\n"
+ " if (!rereduce) {\n"
+ " k0 = ks[0];\n"
+ " if (k0 == 'y') {\n"
+ " k0.search(/(y+)/);\n"
+ " return RegExp.$1;\n"
+ " };\n"
+ " return v0;\n"
+ " } else {\n"
+ " if (v0 == 'u') {\n"
+ " v0.search(/(u+)/);\n"
+ " return RegExp.$1;\n"
+ " };\n"
+ " return v0;\n"
+ " }\n"
+ "}"
+ >>
+ }
+ },
+ filters => #{
+ f => <<
+ "function(doc, req) {\n"
+ " if(doc.a == 'z') {\n"
+ " doc.a.search(/(z+)/);\n"
+ " if(RegExp.$1 == 'z') {return true} else {return false};\n"
+ " } else {\n"
+ " return true;\n"
+ " }\n"
+ "}"
+ >>
+ },
+ validate_doc_update => <<
+ "function(newdoc, olddoc, userctx, sec){\n"
+ " if(newdoc.a == 'w') {\n"
+ " newdoc.a.search(/(w+)/);\n"
+ " if(RegExp.$1 == 'w') {return true} else {throw('forbidden')}\n"
+ " } else {\n"
+ " return true\n"
+ " }\n"
+ "}"
+ >>
+ }),
+ couch_scanner:reset_checkpoints(),
+ config:set(atom_to_list(?PLUGIN), "max_batch_items", "1", false),
+ {Ctx, DbName}.
+
+teardown({Ctx, DbName}) ->
+ config_delete_section("couch_scanner"),
+ config_delete_section("couch_scanner_plugins"),
+ config_delete_section(atom_to_list(?PLUGIN)),
+ couch_scanner:reset_checkpoints(),
+ couch_scanner:resume(),
+ fabric:delete_db(DbName),
+ test_util:stop_couch(Ctx),
+ meck:unload().
+
+t_basic({_, DbName}) ->
+ meck:reset(couch_scanner_server),
+ meck:reset(?PLUGIN),
+ config:set("couch_scanner_plugins", atom_to_list(?PLUGIN), "true", false),
+ wait_exit(10000),
+ ?assertEqual(1, num_calls(start, 2)),
+ case couch_server:with_spidermonkey() of
+ true ->
+ ?assertEqual(1, num_calls(complete, 1)),
+ ?assertEqual(2, num_calls(checkpoint, 1)),
+ ?assertEqual(1, num_calls(db, ['_', DbName])),
+ ?assertEqual(1, num_calls(ddoc, ['_', DbName, '_'])),
+ ?assert(num_calls(shards, 2) >= 1),
+ DbOpenedCount = num_calls(db_opened, 2),
+ ?assert(DbOpenedCount >= 2),
+ ?assertEqual(1, num_calls(doc_id, ['_', ?DOC1, '_'])),
+ ?assertEqual(1, num_calls(doc_id, ['_', ?DOC2, '_'])),
+ ?assertEqual(1, num_calls(doc_id, ['_', ?DOC3, '_'])),
+ ?assertEqual(1, num_calls(doc_id, ['_', ?DOC4, '_'])),
+ ?assertEqual(1, num_calls(doc_id, ['_', ?DOC5, '_'])),
+ ?assert(num_calls(doc, 3) >= 5),
+ DbClosingCount = num_calls(db_closing, 2),
+ ?assertEqual(DbOpenedCount, DbClosingCount),
+ % start, complete and each of the 5 docs should fail = 7 total
+ ?assertEqual(7, log_calls(warning));
+ false ->
+ ok
+ end.
+
+config_delete_section(Section) ->
+ [config:delete(K, V, false) || {K, V} <- config:get(Section)].
+
+add_doc(DbName, DocId, Body) ->
+ {ok, _} = fabric:update_doc(DbName, mkdoc(DocId, Body), [?ADMIN_CTX]),
+ ok.
+
+mkdoc(Id, #{} = Body) ->
+ Body1 = Body#{<<"_id">> => Id},
+ jiffy:decode(jiffy:encode(Body1)).
+
+num_calls(Fun, Args) ->
+ meck:num_calls(?PLUGIN, Fun, Args).
+
+log_calls(Level) ->
+ meck:num_calls(couch_scanner_util, log, [Level, ?PLUGIN, '_', '_', '_']).
+
+wait_exit(MSec) ->
+ meck:wait(couch_scanner_server, handle_info, [{'EXIT', '_', '_'}, '_'], MSec).
diff --git a/src/couch_quickjs/test/couch_quickjs_tests.erl b/src/couch_quickjs/test/couch_quickjs_tests.erl
new file mode 100644
index 0000000..c29172e
--- /dev/null
+++ b/src/couch_quickjs/test/couch_quickjs_tests.erl
@@ -0,0 +1,68 @@
+% Licensed under the Apache License, Version 2.0 (the "License"); you may not
+% use this file except in compliance with the License. You may obtain a copy of
+% the License at
+%
+% http://www.apache.org/licenses/LICENSE-2.0
+%
+% Unless required by applicable law or agreed to in writing, software
+% distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+% WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+% License for the specific language governing permissions and limitations under
+% the License.
+
+-module(couch_quickjs_tests).
+
+-include_lib("couch/include/couch_eunit.hrl").
+
+setup() ->
+ test_util:start_couch().
+
+teardown(Ctx) ->
+ config:delete("quickjs", "memory_limit_bytes", _Persist = false),
+ test_util:stop_couch(Ctx).
+
+quickjs_test_() ->
+ {
+ foreach,
+ fun setup/0,
+ fun teardown/1,
+ [
+ ?TDEF_FE(t_get_mainjs_cmd),
+ ?TDEF_FE(t_get_coffee_cmd),
+ ?TDEF_FE(t_can_configure_memory_limit),
+ ?TDEF_FE(t_bad_memory_limit)
+ ]
+ }.
+
+t_get_mainjs_cmd(_) ->
+ Cmd = couch_quickjs:mainjs_cmd(),
+ ?assert(filelib:is_file(Cmd)),
+ ?assertEqual("quickjs", os_cmd(Cmd ++ " -V")).
+
+t_get_coffee_cmd(_) ->
+ Cmd = couch_quickjs:coffee_cmd(),
+ ?assert(filelib:is_file(Cmd)),
+ ?assertEqual("quickjs", os_cmd(Cmd ++ " -V")).
+
+t_can_configure_memory_limit(_) ->
+ Limit = integer_to_list(4 * 1024 * 1024),
+ config:set("quickjs", "memory_limit_bytes", Limit, _Persist = false),
+ Cmd = couch_quickjs:mainjs_cmd(),
+ ?assert(is_list(Cmd)),
+ Expect = "-M " ++ Limit,
+ ?assertEqual(Expect, string:find(Cmd, Expect)),
+ ?assertEqual("quickjs", os_cmd(Cmd ++ " -V")).
+
+t_bad_memory_limit(_) ->
+ Limit = integer_to_list(42),
+ config:set("quickjs", "memory_limit_bytes", Limit, _Persist = false),
+ Cmd = couch_quickjs:mainjs_cmd(),
+ ?assert(is_list(Cmd)),
+ ExpectCmd = "-M " ++ Limit,
+ ?assertEqual(ExpectCmd, string:find(Cmd, ExpectCmd)),
+ Res = os_cmd(Cmd ++ " -V"),
+ ExpectRes = "Invalid stack size",
+ ?assertEqual(ExpectRes, string:find(Res, ExpectRes)).
+
+os_cmd(Cmd) ->
+ string:trim(os:cmd(Cmd)).
diff --git a/src/couch_quickjs/update_and_apply_patches.sh b/src/couch_quickjs/update_and_apply_patches.sh
new file mode 100755
index 0000000..19654de
--- /dev/null
+++ b/src/couch_quickjs/update_and_apply_patches.sh
@@ -0,0 +1,54 @@
+#!/bin/bash
+
+# Update from upstream master and apply patches in patches directory in order
+
+set -e
+
+# This is the main branch of the github mirror
+URL=https://github.com/bellard/quickjs/archive/refs/heads/master.zip
+#
+# The other alternatives:
+# https://github.com/quickjs-ng/quickjs/commits/master/
+
+
+echo
+echo " * backup quickjs to quickjs.bak"
+rm -rf quickjs.bak
+mv quickjs quickjs.bak
+echo
+echo " * wget upstream ${URL}"
+rm -rf master.zip
+wget -q ${URL}
+echo
+echo " * unzip to quickjs"
+unzip -q -o master.zip
+rm master.zip
+mv quickjs-master quickjs
+echo
+echo " * remove a few files we don't care about"
+rm -rf quickjs/doc
+rm -rf quickjs/examples
+rm -rf quickjs/*test262o*
+rm -f quickjs/tests/*.js
+rm -f quickjs/tests/*.c
+rm -f quickjs/.gitignore
+rm quickjs/release.sh
+rm quickjs/readme.txt
+rm quickjs/unicode_gen.c
+rm quickjs/unicode_gen_def.h
+rm quickjs/unicode_download.sh
+rm quickjs/repl.js
+rm quickjs/qjs.c
+rm quickjs/qjscalc.js
+rm quickjs/TODO
+echo
+echo " * apply patches"
+find patches -name "*.patch" -print0 | sort -z | xargs -t -0 -n 1 patch -p0 -i
+echo
+echo " * removing quickjs.bak"
+rm -rf quickjs.bak
+echo
+
+# Example how to generate patches:
+#
+# diff -u quickjs-master/quickjs.c quickjs/quickjs.c > patches/01-spidermonkey-185-mode.patch
diff --git a/src/docs/src/config/couchdb.rst b/src/docs/src/config/couchdb.rst
index 122bab4..73d33e0 100644
--- a/src/docs/src/config/couchdb.rst
+++ b/src/docs/src/config/couchdb.rst
@@ -247,3 +247,14 @@
[couchdb]
write_xxhash_checksums = false
+
+ .. config:option:: js_engine :: Set default Javascript Engine.
+
+ .. versionchanged:: 3.4
+
+ Select the default Javascript engine. Available options are
+ ``spidermonkey`` and ``quickjs``. The default setting is
+ ``spidermonkey``::
+
+ [couchdb]
+ js_engine = spidermonkey
diff --git a/src/docs/src/config/index.rst b/src/docs/src/config/index.rst
index be812ef..347785c 100644
--- a/src/docs/src/config/index.rst
+++ b/src/docs/src/config/index.rst
@@ -25,6 +25,7 @@
couch-peruser
disk-monitor
scanner
+ quickjs
http
auth
compaction
diff --git a/src/docs/src/config/quickjs.rst b/src/docs/src/config/quickjs.rst
new file mode 100644
index 0000000..a883a8f
--- /dev/null
+++ b/src/docs/src/config/quickjs.rst
@@ -0,0 +1,122 @@
+.. Licensed under the Apache License, Version 2.0 (the "License"); you may not
+.. use this file except in compliance with the License. You may obtain a copy of
+.. the License at
+..
+.. http://www.apache.org/licenses/LICENSE-2.0
+..
+.. Unless required by applicable law or agreed to in writing, software
+.. distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+.. WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+.. License for the specific language governing permissions and limitations under
+.. the License.
+
+.. default-domain:: config
+.. highlight:: ini
+
+=======
+QuickJS
+=======
+
+Configure QuickJS Javascript Engine.
+
+QuickJS is a new Javascript Engine installed alongside the default
+Spidermonkey engine. It's disabled by default, but may be enabled via
+configuration settings.
+
+The configuration toggle to enable and disable QuickJS by default is in
+:ref:`couchdb <config/couchdb>` ``js_engine`` section.
+
+To help evaluate design doc compatibility, without the penalty of resetting all
+the views on a cluster, there is a :ref:`scanner <config/scanner>` plugin,
+which will traverse databases and design docs, compile and then execute some of
+the view functions using both engines and report incompatibilities.
+
+.. _config/quickjs:
+
+.. versionadded:: 3.4
+
+QuickJS Options
+===============
+
+.. config:section:: quickjs :: QuickJS Engine Configuration
+
+ .. config:option:: memory_limit_bytes
+
+ Set QuickJS memory limit in bytes. The default is ``undefined`` and the
+ built-in C default of 64MB is used. ::
+
+ [quickjs]
+ memory_limit_bytes = 67108864
+
+.. config:section:: couch_quickjs_scanner_plugin :: QuickJS Scanner Plugin Settings
+
+Enable QuickJS Scanner plugin in :ref:`couch_scanner_plugins
+<config/scanner>` ``couch_scanner_plugins`` section.
+
+ .. config:option:: max_ddocs
+
+ Limit the number of design docs processed per database. ::
+
+ [couch_quickjs_scanner_plugin]
+ max_ddocs = 100
+
+ .. config:option:: max_shards
+
+ Limit the number of shards processed per database. ::
+
+ [couch_quickjs_scanner_plugin]
+ max_shards = 4
+
+ .. config:option:: max_docs
+
+ Limit the number of documents processed per database. These are the max
+ number of documents sent to the design doc functions. ::
+
+ [couch_quickjs_scanner_plugin]
+ max_docs = 1000
+
+ .. config:option:: max_step
+
+ Limit the maximum step size when processing docs. Given that total
+ number of documents in a shard as N, if the max_docs is M, then the
+ step S = N / M. Then only every S documents will be sampled and
+ processed. ::
+
+ [couch_quickjs_scanner_plugin]
+ max_step = 1000
+
+ .. config:option:: max_batch_items
+
+ Maximum document batch size to gather before feeding them through each
+ design doc on both QuickJS and Spidermonkey engines and compare the
+ results. ::
+
+ [couch_quickjs_scanner_plugin]
+ max_batch_items = 100
+
+ .. config:option:: max_batch_size
+
+ Maximum memory usage for a document batch size. ::
+
+ [couch_quickjs_scanner_plugin]
+ max_batch_size = 16777216
+
+ .. config:option:: after
+
+ A common :ref:`scanner <config/scanner>` setting to
+ configure when to execute the plugin after it's enabled. By default
+ it's ``restart``, so the plugin would start running after a node
+ restart::
+
+ [couch_quickjs_scanner_plugin]
+ after = restart
+
+ .. config:option:: repeat
+
+ A common :ref:`scanner <config/scanner>` setting to
+ configure when to execute the plugin after it's enabled. By default
+ it's ``restart``, so the plugin would start running after a node
+ restart::
+
+ [couch_quickjs_scanner_plugin]
+ repeat = restart
diff --git a/src/docs/src/config/scanner.rst b/src/docs/src/config/scanner.rst
index 6a54cd9..c395cd8 100644
--- a/src/docs/src/config/scanner.rst
+++ b/src/docs/src/config/scanner.rst
@@ -94,6 +94,7 @@
[couch_scanner_plugins]
couch_scanner_plugin_ddoc_features = false
couch_scanner_plugin_find = false
+ couch_quickjs_scanner_plugin = false
.. config:section:: $plugin :: General Plugin Settings
diff --git a/test/elixir/test/view_errors_test.exs b/test/elixir/test/view_errors_test.exs
index 3ac0582..d45eb7c 100644
--- a/test/elixir/test/view_errors_test.exs
+++ b/test/elixir/test/view_errors_test.exs
@@ -190,7 +190,8 @@
# fires first. The first timeout is the couch_os_process
# waiting for data back from couchjs. The second is the
# gen_server call to couch_os_process.
- assert resp.body["error"] == "os_process_error" or resp.body["error"] == "timeout"
+ err_name = resp.body["error"]
+ assert Enum.member?(["os_process_error", "timeout", "InternalError"], err_name)
end
@tag :with_db
diff --git a/test/elixir/test/view_sandboxing_test.exs b/test/elixir/test/view_sandboxing_test.exs
index af0928e..a670dcc 100644
--- a/test/elixir/test/view_sandboxing_test.exs
+++ b/test/elixir/test/view_sandboxing_test.exs
@@ -186,6 +186,24 @@
"""
resp = query(db_name, map_fun)
- assert resp["total_rows"] == 0
+
+ case quickjs() do
+ true ->
+ # QuickJS uses runtime instances for isolation
+ assert resp["total_rows"] == 1
+ false ->
+ assert resp["total_rows"] == 0
+ end
+ end
+
+ defp quickjs() do
+ versions = Couch.get("/_node/_local/_versions")
+ assert versions.status_code == 200
+ case versions.body["javascript_engine"]["name"] do
+ "quickjs" ->
+ true
+ _ ->
+ false
+ end
end
end
