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apache / thrift / refs/tags/thrift-0.7.0 / . / compiler / cpp / src / generate / t_as3_generator.cc
blob: 05514f1525ff7726a5148cf143e6a7e885aab29a [file] [log] [blame]
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 <sstream>
#include <string>
#include <fstream>
#include <iostream>
#include <vector>
#include <cctype>
#include <sys/stat.h>
#include <stdexcept>
#include "platform.h"
#include "t_oop_generator.h"
using namespace std;
/**
* AS3 code generator.
*
*/
class t_as3_generator : public t_oop_generator {
public:
t_as3_generator(
t_program* program,
const std::map<std::string, std::string>& parsed_options,
const std::string& option_string)
: t_oop_generator(program)
{
(void) option_string;
std::map<std::string, std::string>::const_iterator iter;
iter = parsed_options.find("bindable");
bindable_ = (iter != parsed_options.end());
out_dir_base_ = "gen-as3";
}
/**
* Init and close methods
*/
void init_generator();
void close_generator();
void generate_consts(std::vector<t_const*> consts);
/**
* Program-level generation functions
*/
void generate_typedef (t_typedef* ttypedef);
void generate_enum (t_enum* tenum);
void generate_struct (t_struct* tstruct);
void generate_xception(t_struct* txception);
void generate_service (t_service* tservice);
void print_const_value(std::ofstream& out, std::string name, t_type* type, t_const_value* value, bool in_static, bool defval=false);
std::string render_const_value(ofstream& out, std::string name, t_type* type, t_const_value* value);
/**
* Service-level generation functions
*/
void generate_as3_struct(t_struct* tstruct, bool is_exception);
void generate_as3_struct_definition(std::ofstream& out, t_struct* tstruct, bool is_xception=false, bool in_class=false, bool is_result=false);
//removed -- equality,compare_to
void generate_as3_struct_reader(std::ofstream& out, t_struct* tstruct);
void generate_as3_validator(std::ofstream& out, t_struct* tstruct);
void generate_as3_struct_result_writer(std::ofstream& out, t_struct* tstruct);
void generate_as3_struct_writer(std::ofstream& out, t_struct* tstruct);
void generate_as3_struct_tostring(std::ofstream& out, t_struct* tstruct, bool bindable);
void generate_as3_meta_data_map(std::ofstream& out, t_struct* tstruct);
void generate_field_value_meta_data(std::ofstream& out, t_type* type);
std::string get_as3_type_string(t_type* type);
void generate_reflection_setters(std::ostringstream& out, t_type* type, std::string field_name, std::string cap_name);
void generate_reflection_getters(std::ostringstream& out, t_type* type, std::string field_name, std::string cap_name);
void generate_generic_field_getters_setters(std::ofstream& out, t_struct* tstruct);
void generate_generic_isset_method(std::ofstream& out, t_struct* tstruct);
void generate_as3_bean_boilerplate(std::ofstream& out, t_struct* tstruct, bool bindable);
void generate_function_helpers(t_function* tfunction);
std::string get_cap_name(std::string name);
std::string generate_isset_check(t_field* field);
std::string generate_isset_check(std::string field);
void generate_isset_set(ofstream& out, t_field* field);
//removed std::string isset_field_id(t_field* field);
void generate_service_interface (t_service* tservice);
void generate_service_helpers (t_service* tservice);
void generate_service_client (t_service* tservice);
void generate_service_server (t_service* tservice);
void generate_process_function (t_service* tservice, t_function* tfunction);
/**
* Serialization constructs
*/
void generate_deserialize_field (std::ofstream& out,
t_field* tfield,
std::string prefix="");
void generate_deserialize_struct (std::ofstream& out,
t_struct* tstruct,
std::string prefix="");
void generate_deserialize_container (std::ofstream& out,
t_type* ttype,
std::string prefix="");
void generate_deserialize_set_element (std::ofstream& out,
t_set* tset,
std::string prefix="");
void generate_deserialize_map_element (std::ofstream& out,
t_map* tmap,
std::string prefix="");
void generate_deserialize_list_element (std::ofstream& out,
t_list* tlist,
std::string prefix="");
void generate_serialize_field (std::ofstream& out,
t_field* tfield,
std::string prefix="");
void generate_serialize_struct (std::ofstream& out,
t_struct* tstruct,
std::string prefix="");
void generate_serialize_container (std::ofstream& out,
t_type* ttype,
std::string prefix="");
void generate_serialize_map_element (std::ofstream& out,
t_map* tmap,
std::string iter,
std::string map);
void generate_serialize_set_element (std::ofstream& out,
t_set* tmap,
std::string iter);
void generate_serialize_list_element (std::ofstream& out,
t_list* tlist,
std::string iter);
void generate_as3_doc (std::ofstream& out,
t_doc* tdoc);
void generate_as3_doc (std::ofstream& out,
t_function* tdoc);
/**
* Helper rendering functions
*/
std::string as3_package();
std::string as3_type_imports();
std::string as3_thrift_imports();
std::string as3_thrift_gen_imports(t_struct* tstruct, string& imports);
std::string as3_thrift_gen_imports(t_service* tservice);
std::string type_name(t_type* ttype, bool in_container=false, bool in_init=false);
std::string base_type_name(t_base_type* tbase, bool in_container=false);
std::string declare_field(t_field* tfield, bool init=false);
std::string function_signature(t_function* tfunction, std::string prefix="");
std::string argument_list(t_struct* tstruct);
std::string type_to_enum(t_type* ttype);
std::string get_enum_class_name(t_type* type);
bool type_can_be_null(t_type* ttype) {
ttype = get_true_type(ttype);
return
ttype->is_container() ||
ttype->is_struct() ||
ttype->is_xception() ||
ttype->is_string();
}
std::string constant_name(std::string name);
private:
/**
* File streams
*/
std::string package_name_;
std::ofstream f_service_;
std::string package_dir_;
bool bindable_;
};
/**
* Prepares for file generation by opening up the necessary file output
* streams.
*
* @param tprogram The program to generate
*/
void t_as3_generator::init_generator() {
// Make output directory
MKDIR(get_out_dir().c_str());
package_name_ = program_->get_namespace("as3");
string dir = package_name_;
string subdir = get_out_dir();
string::size_type loc;
while ((loc = dir.find(".")) != string::npos) {
subdir = subdir + "/" + dir.substr(0, loc);
MKDIR(subdir.c_str());
dir = dir.substr(loc+1);
}
if (dir.size() > 0) {
subdir = subdir + "/" + dir;
MKDIR(subdir.c_str());
}
package_dir_ = subdir;
}
/**
* Packages the generated file
*
* @return String of the package, i.e. "package org.apache.thriftdemo;"
*/
string t_as3_generator::as3_package() {
if (!package_name_.empty()) {
return string("package ") + package_name_ + " ";
}
return "";
}
/**
* Prints standard as3 imports
*
* @return List of imports for As3 types that are used in here
*/
string t_as3_generator::as3_type_imports() {
return
string() +
"import org.apache.thrift.Set;\n" +
"import flash.utils.ByteArray;\n" +
"import flash.utils.Dictionary;\n\n";
}
/**
* Prints standard as3 imports
*
* @return List of imports necessary for thrift
*/
string t_as3_generator::as3_thrift_imports() {
return
string() +
"import org.apache.thrift.*;\n" +
"import org.apache.thrift.meta_data.*;\n" +
"import org.apache.thrift.protocol.*;\n\n";
}
/**
* Prints imports needed for a given type
*
* @return List of imports necessary for a given t_struct
*/
string t_as3_generator::as3_thrift_gen_imports(t_struct* tstruct, string& imports) {
const vector<t_field*>& members = tstruct->get_members();
vector<t_field*>::const_iterator m_iter;
//For each type check if it is from a differnet namespace
for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) {
t_program* program = (*m_iter)->get_type()->get_program();
if (program != NULL && program != program_) {
string package = program->get_namespace("as3");
if (!package.empty()) {
if (imports.find(package + "." + (*m_iter)->get_type()->get_name()) == string::npos) {
imports.append("import " + package + "." + (*m_iter)->get_type()->get_name() + ";\n");
}
}
}
}
return imports;
}
/**
* Prints imports needed for a given type
*
* @return List of imports necessary for a given t_service
*/
string t_as3_generator::as3_thrift_gen_imports(t_service* tservice) {
string imports;
const vector<t_function*>& functions = tservice->get_functions();
vector<t_function*>::const_iterator f_iter;
//For each type check if it is from a differnet namespace
for (f_iter = functions.begin(); f_iter != functions.end(); ++f_iter) {
t_program* program = (*f_iter)->get_returntype()->get_program();
if (program != NULL && program != program_) {
string package = program->get_namespace("as3");
if (!package.empty()) {
if (imports.find(package + "." + (*f_iter)->get_returntype()->get_name()) == string::npos) {
imports.append("import " + package + "." + (*f_iter)->get_returntype()->get_name() + ";\n");
}
}
}
as3_thrift_gen_imports((*f_iter)->get_arglist(), imports);
as3_thrift_gen_imports((*f_iter)->get_xceptions(), imports);
}
return imports;
}
/**
* Nothing in As3
*/
void t_as3_generator::close_generator() {}
/**
* Generates a typedef. This is not done in As3, since it does
* not support arbitrary name replacements, and it'd be a wacky waste
* of overhead to make wrapper classes.
*
* @param ttypedef The type definition
*/
void t_as3_generator::generate_typedef(t_typedef* ttypedef) {
(void) ttypedef;
}
/**
* Enums are a class with a set of static constants.
*
* @param tenum The enumeration
*/
void t_as3_generator::generate_enum(t_enum* tenum) {
// Make output file
string f_enum_name = package_dir_+"/"+(tenum->get_name())+".as";
ofstream f_enum;
f_enum.open(f_enum_name.c_str());
// Comment and package it
f_enum <<
autogen_comment() <<
as3_package() << endl;
scope_up(f_enum);
// Add as3 imports
f_enum << string() +
"import org.apache.thrift.Set;" << endl <<
"import flash.utils.Dictionary;" << endl;
indent(f_enum) <<
"public class " << tenum->get_name() << " ";
scope_up(f_enum);
vector<t_enum_value*> constants = tenum->get_constants();
vector<t_enum_value*>::iterator c_iter;
for (c_iter = constants.begin(); c_iter != constants.end(); ++c_iter) {
int value = (*c_iter)->get_value();
indent(f_enum) <<
"public static const " << (*c_iter)->get_name() <<
":int = " << value << ";" << endl;
}
// Create a static Set with all valid values for this enum
f_enum << endl;
indent(f_enum) << "public static const VALID_VALUES:Set = new Set(";
indent_up();
bool firstValue = true;
for (c_iter = constants.begin(); c_iter != constants.end(); ++c_iter) {
// populate set
f_enum << (firstValue ? "" : ", ") << (*c_iter)->get_name();
firstValue = false;
}
indent_down();
f_enum << ");" << endl;
indent(f_enum) << "public static const VALUES_TO_NAMES:Dictionary = new Dictionary();" << endl;
scope_up(f_enum);
for (c_iter = constants.begin(); c_iter != constants.end(); ++c_iter) {
indent(f_enum) << "VALUES_TO_NAMES[" << (*c_iter)->get_name() << "] = \"" << (*c_iter)->get_name() << "\";" << endl;
}
f_enum << endl;
scope_down(f_enum);
scope_down(f_enum); // end class
scope_down(f_enum); // end package
f_enum.close();
}
/**
* Generates a class that holds all the constants.
*/
void t_as3_generator::generate_consts(std::vector<t_const*> consts) {
if (consts.empty()) {
return;
}
string f_consts_name = package_dir_+"/Constants.as";
ofstream f_consts;
f_consts.open(f_consts_name.c_str());
// Print header
f_consts <<
autogen_comment() << as3_package();
scope_up(f_consts);
f_consts << endl;
f_consts << as3_type_imports();
indent(f_consts) <<
"public class Constants {" << endl <<
endl;
indent_up();
vector<t_const*>::iterator c_iter;
for (c_iter = consts.begin(); c_iter != consts.end(); ++c_iter) {
print_const_value(f_consts,
(*c_iter)->get_name(),
(*c_iter)->get_type(),
(*c_iter)->get_value(),
false);
}
indent_down();
indent(f_consts) <<
"}" << endl;
scope_down(f_consts);
f_consts.close();
}
void t_as3_generator::print_const_value(std::ofstream& out, string name, t_type* type, t_const_value* value, bool in_static, bool defval) {
type = get_true_type(type);
indent(out);
if (!defval) {
out <<
(in_static ? "var " : "public static const ");
}
if (type->is_base_type()) {
string v2 = render_const_value(out, name, type, value);
out << name;
if (!defval) {
out << ":" << type_name(type);
}
out << " = " << v2 << ";" << endl << endl;
} else if (type->is_enum()) {
out << name;
if(!defval) {
out << ":" << type_name(type);
}
out << " = " << value->get_integer() << ";" << endl << endl;
} else if (type->is_struct() || type->is_xception()) {
const vector<t_field*>& fields = ((t_struct*)type)->get_members();
vector<t_field*>::const_iterator f_iter;
const map<t_const_value*, t_const_value*>& val = value->get_map();
map<t_const_value*, t_const_value*>::const_iterator v_iter;
out << name << ":" << type_name(type) << " = new " << type_name(type, false, true) << "();" << endl;
if (!in_static) {
indent(out) << "{" << endl;
indent_up();
indent(out) << "new function():void {" << endl;
indent_up();
}
for (v_iter = val.begin(); v_iter != val.end(); ++v_iter) {
t_type* field_type = NULL;
for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) {
if ((*f_iter)->get_name() == v_iter->first->get_string()) {
field_type = (*f_iter)->get_type();
}
}
if (field_type == NULL) {
throw "type error: " + type->get_name() + " has no field " + v_iter->first->get_string();
}
string val = render_const_value(out, name, field_type, v_iter->second);
indent(out) << name << ".";
out << v_iter->first->get_string() << " = " << val << ";" << endl;
}
if (!in_static) {
indent_down();
indent(out) << "}();" << endl;
indent_down();
indent(out) << "}" << endl;
}
out << endl;
} else if (type->is_map()) {
out << name;
if(!defval){
out << ":" << type_name(type);
}
out << " = new " << type_name(type, false, true) << "();" << endl;
if (!in_static) {
indent(out) << "{" << endl;
indent_up();
indent(out) << "new function():void {" << endl;
indent_up();
}
t_type* ktype = ((t_map*)type)->get_key_type();
t_type* vtype = ((t_map*)type)->get_val_type();
const map<t_const_value*, t_const_value*>& val = value->get_map();
map<t_const_value*, t_const_value*>::const_iterator v_iter;
for (v_iter = val.begin(); v_iter != val.end(); ++v_iter) {
string key = render_const_value(out, name, ktype, v_iter->first);
string val = render_const_value(out, name, vtype, v_iter->second);
indent(out) << name << "[" << key << "] = " << val << ";" << endl;
}
if (!in_static) {
indent_down();
indent(out) << "}();" << endl;
indent_down();
indent(out) << "}" << endl;
}
out << endl;
} else if (type->is_list() || type->is_set()) {
out << name;
if(!defval) {
out << ":" << type_name(type);
}
out << " = new " << type_name(type, false, true) << "();" << endl;
if (!in_static) {
indent(out) << "{" << endl;
indent_up();
indent(out) << "new function():void {" << endl;
indent_up();
}
t_type* etype;
if (type->is_list()) {
etype = ((t_list*)type)->get_elem_type();
} else {
etype = ((t_set*)type)->get_elem_type();
}
const vector<t_const_value*>& val = value->get_list();
vector<t_const_value*>::const_iterator v_iter;
for (v_iter = val.begin(); v_iter != val.end(); ++v_iter) {
string val = render_const_value(out, name, etype, *v_iter);
indent(out) << name << "." << (type->is_list() ? "push" : "add") << "(" << val << ");" << endl;
}
if (!in_static) {
indent_down();
indent(out) << "}();" << endl;
indent_down();
indent(out) << "}" << endl;
}
out << endl;
} else {
throw "compiler error: no const of type " + type->get_name();
}
}
string t_as3_generator::render_const_value(ofstream& out, string name, t_type* type, t_const_value* value) {
(void) name;
type = get_true_type(type);
std::ostringstream render;
if (type->is_base_type()) {
t_base_type::t_base tbase = ((t_base_type*)type)->get_base();
switch (tbase) {
case t_base_type::TYPE_STRING:
render << '"' << get_escaped_string(value) << '"';
break;
case t_base_type::TYPE_BOOL:
render << ((value->get_integer() > 0) ? "true" : "false");
break;
case t_base_type::TYPE_BYTE:
render << "(byte)" << value->get_integer();
break;
case t_base_type::TYPE_I16:
render << "(short)" << value->get_integer();
break;
case t_base_type::TYPE_I32:
render << value->get_integer();
break;
case t_base_type::TYPE_I64:
render << value->get_integer() << "L";
break;
case t_base_type::TYPE_DOUBLE:
if (value->get_type() == t_const_value::CV_INTEGER) {
render << "(double)" << value->get_integer();
} else {
render << value->get_double();
}
break;
default:
throw "compiler error: no const of base type " + t_base_type::t_base_name(tbase);
}
} else if (type->is_enum()) {
render << value->get_integer();
} else {
string t = tmp("tmp");
print_const_value(out, t, type, value, true);
render << t;
}
return render.str();
}
/**
* Generates a struct definition for a thrift data type. This is a class
* with data members, read(), write(), and an inner Isset class.
*
* @param tstruct The struct definition
*/
void t_as3_generator::generate_struct(t_struct* tstruct) {
generate_as3_struct(tstruct, false);
}
/**
* Exceptions are structs, but they inherit from Exception
*
* @param tstruct The struct definition
*/
void t_as3_generator::generate_xception(t_struct* txception) {
generate_as3_struct(txception, true);
}
/**
* As3 struct definition.
*
* @param tstruct The struct definition
*/
void t_as3_generator::generate_as3_struct(t_struct* tstruct,
bool is_exception) {
// Make output file
string f_struct_name = package_dir_+"/"+(tstruct->get_name())+".as";
ofstream f_struct;
f_struct.open(f_struct_name.c_str());
f_struct <<
autogen_comment() <<
as3_package();
scope_up(f_struct);
f_struct << endl;
string imports;
f_struct <<
as3_type_imports() <<
as3_thrift_imports() <<
as3_thrift_gen_imports(tstruct, imports) << endl;
if (bindable_ && ! is_exception) {
f_struct << "import flash.events.Event;" << endl <<
"import flash.events.EventDispatcher;" << endl <<
"import mx.events.PropertyChangeEvent;" << endl;
}
generate_as3_struct_definition(f_struct,
tstruct,
is_exception);
scope_down(f_struct); // end of package
f_struct.close();
}
/**
* As3 struct definition. This has various parameters, as it could be
* generated standalone or inside another class as a helper. If it
* is a helper than it is a static class.
*
* @param tstruct The struct definition
* @param is_exception Is this an exception?
* @param in_class If inside a class, needs to be static class
* @param is_result If this is a result it needs a different writer
*/
void t_as3_generator::generate_as3_struct_definition(ofstream &out,
t_struct* tstruct,
bool is_exception,
bool in_class,
bool is_result) {
generate_as3_doc(out, tstruct);
bool is_final = (tstruct->annotations_.find("final") != tstruct->annotations_.end());
bool bindable = ! is_exception && ! in_class && bindable_;
indent(out) << (in_class ? "" : "public ") << (is_final ? "final " : "") <<
"class " << tstruct->get_name() << " ";
if (is_exception) {
out << "extends Error ";
}
else if (bindable) {
out << "extends EventDispatcher ";
}
out << "implements TBase ";
scope_up(out);
indent(out) <<
"private static const STRUCT_DESC:TStruct = new TStruct(\"" << tstruct->get_name() << "\");" << endl;
// Members are public for -as3, private for -as3bean
const vector<t_field*>& members = tstruct->get_members();
vector<t_field*>::const_iterator m_iter;
for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) {
indent(out) <<
"private static const " << constant_name((*m_iter)->get_name()) <<
"_FIELD_DESC:TField = new TField(\"" << (*m_iter)->get_name() << "\", " <<
type_to_enum((*m_iter)->get_type()) << ", " <<
(*m_iter)->get_key() << ");" << endl;
}
out << endl;
for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) {
generate_as3_doc(out, *m_iter);
indent(out) << "private var _" << (*m_iter)->get_name() + ":" + type_name((*m_iter)->get_type()) << ";" << endl;
indent(out) << "public static const " << upcase_string((*m_iter)->get_name()) << ":int = " << (*m_iter)->get_key() << ";" << endl;
}
out << endl;
// Inner Isset class
if (members.size() > 0) {
for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) {
if (!type_can_be_null((*m_iter)->get_type())){
indent(out) <<
"private var __isset_" << (*m_iter)->get_name() << ":Boolean = false;" << endl;
}
}
}
out << endl;
generate_as3_meta_data_map(out, tstruct);
// Static initializer to populate global class to struct metadata map
indent(out) << "{" << endl;
indent_up();
indent(out) << "FieldMetaData.addStructMetaDataMap(" << type_name(tstruct) << ", metaDataMap);" << endl;
indent_down();
indent(out) << "}" << endl << endl;
// Default constructor
indent(out) <<
"public function " << tstruct->get_name() << "() {" << endl;
indent_up();
for (m_iter = members.begin(); m_iter != members.end(); ++m_iter) {
if ((*m_iter)->get_value() != NULL) {
indent(out) << "this._" << (*m_iter)->get_name() << " = " << (*m_iter)->get_value()->get_integer() << ";" <<
endl;
}
}
indent_down();
indent(out) << "}" << endl << endl;
generate_as3_bean_boilerplate(out, tstruct, bindable);
generate_generic_field_getters_setters(out, tstruct);
generate_generic_isset_method(out, tstruct);
generate_as3_struct_reader(out, tstruct);
if (is_result) {
generate_as3_struct_result_writer(out, tstruct);
} else {
generate_as3_struct_writer(out, tstruct);
}
generate_as3_struct_tostring(out, tstruct, bindable);
generate_as3_validator(out, tstruct);
scope_down(out);
out << endl;
}
/**
* Generates a function to read all the fields of the struct.
*
* @param tstruct The struct definition
*/
void t_as3_generator::generate_as3_struct_reader(ofstream& out,
t_struct* tstruct) {
out <<
indent() << "public function read(iprot:TProtocol):void {" << endl;
indent_up();
const vector<t_field*>& fields = tstruct->get_members();
vector<t_field*>::const_iterator f_iter;
// Declare stack tmp variables and read struct header
out <<
indent() << "var field:TField;" << endl <<
indent() << "iprot.readStructBegin();" << endl;
// Loop over reading in fields
indent(out) <<
"while (true)" << endl;
scope_up(out);
// Read beginning field marker
indent(out) <<
"field = iprot.readFieldBegin();" << endl;
// Check for field STOP marker and break
indent(out) <<
"if (field.type == TType.STOP) { " << endl;
indent_up();
indent(out) <<
"break;" << endl;
indent_down();
indent(out) <<
"}" << endl;
// Switch statement on the field we are reading
indent(out) <<
"switch (field.id)" << endl;
scope_up(out);
// Generate deserialization code for known cases
for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) {
indent(out) <<
"case " << upcase_string((*f_iter)->get_name()) << ":" << endl;
indent_up();
indent(out) <<
"if (field.type == " << type_to_enum((*f_iter)->get_type()) << ") {" << endl;
indent_up();
generate_deserialize_field(out, *f_iter, "this.");
generate_isset_set(out, *f_iter);
indent_down();
out <<
indent() << "} else { " << endl <<
indent() << " TProtocolUtil.skip(iprot, field.type);" << endl <<
indent() << "}" << endl <<
indent() << "break;" << endl;
indent_down();
}
// In the default case we skip the field
out <<
indent() << "default:" << endl <<
indent() << " TProtocolUtil.skip(iprot, field.type);" << endl <<
indent() << " break;" << endl;
scope_down(out);
// Read field end marker
indent(out) <<
"iprot.readFieldEnd();" << endl;
scope_down(out);
out <<
indent() << "iprot.readStructEnd();" << endl << endl;
// in non-beans style, check for required fields of primitive type
// (which can be checked here but not in the general validate method)
out << endl << indent() << "// check for required fields of primitive type, which can't be checked in the validate method" << endl;
for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) {
if ((*f_iter)->get_req() == t_field::T_REQUIRED && !type_can_be_null((*f_iter)->get_type())) {
out <<
indent() << "if (!__isset_" << (*f_iter)->get_name() << ") {" << endl <<
indent() << " throw new TProtocolError(TProtocolError.UNKNOWN, \"Required field '" << (*f_iter)->get_name() << "' was not found in serialized data! Struct: \" + toString());" << endl <<
indent() << "}" << endl;
}
}
// performs various checks (e.g. check that all required fields are set)
indent(out) << "validate();" << endl;
indent_down();
out <<
indent() << "}" << endl <<
endl;
}
// generates as3 method to perform various checks
// (e.g. check that all required fields are set)
void t_as3_generator::generate_as3_validator(ofstream& out,
t_struct* tstruct){
indent(out) << "public function validate():void {" << endl;
indent_up();
const vector<t_field*>& fields = tstruct->get_members();
vector<t_field*>::const_iterator f_iter;
out << indent() << "// check for required fields" << endl;
for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) {
if ((*f_iter)->get_req() == t_field::T_REQUIRED) {
if (type_can_be_null((*f_iter)->get_type())) {
indent(out) << "if (" << (*f_iter)->get_name() << " == null) {" << endl;
indent(out) << " throw new TProtocolError(TProtocolError.UNKNOWN, \"Required field '" << (*f_iter)->get_name() << "' was not present! Struct: \" + toString());" << endl;
indent(out) << "}" << endl;
} else {
indent(out) << "// alas, we cannot check '" << (*f_iter)->get_name() << "' because it's a primitive and you chose the non-beans generator." << endl;
}
}
}
// check that fields of type enum have valid values
out << indent() << "// check that fields of type enum have valid values" << endl;
for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) {
t_field* field = (*f_iter);
t_type* type = field->get_type();
// if field is an enum, check that its value is valid
if (type->is_enum()){
indent(out) << "if (" << generate_isset_check(field) << " && !" << get_enum_class_name(type) << ".VALID_VALUES.contains(" << field->get_name() << ")){" << endl;
indent_up();
indent(out) << "throw new TProtocolError(TProtocolError.UNKNOWN, \"The field '" << field->get_name() << "' has been assigned the invalid value \" + " << field->get_name() << ");" << endl;
indent_down();
indent(out) << "}" << endl;
}
}
indent_down();
indent(out) << "}" << endl << endl;
}
/**
* Generates a function to write all the fields of the struct
*
* @param tstruct The struct definition
*/
void t_as3_generator::generate_as3_struct_writer(ofstream& out,
t_struct* tstruct) {
out <<
indent() << "public function write(oprot:TProtocol):void {" << endl;
indent_up();
string name = tstruct->get_name();
const vector<t_field*>& fields = tstruct->get_sorted_members();
vector<t_field*>::const_iterator f_iter;
// performs various checks (e.g. check that all required fields are set)
indent(out) << "validate();" << endl << endl;
indent(out) << "oprot.writeStructBegin(STRUCT_DESC);" << endl;
for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) {
bool null_allowed = type_can_be_null((*f_iter)->get_type());
if (null_allowed) {
out <<
indent() << "if (this." << (*f_iter)->get_name() << " != null) {" << endl;
indent_up();
}
indent(out) << "oprot.writeFieldBegin(" << constant_name((*f_iter)->get_name()) << "_FIELD_DESC);" << endl;
// Write field contents
generate_serialize_field(out, *f_iter, "this.");
// Write field closer
indent(out) <<
"oprot.writeFieldEnd();" << endl;
if (null_allowed) {
indent_down();
indent(out) << "}" << endl;
}
}
// Write the struct map
out <<
indent() << "oprot.writeFieldStop();" << endl <<
indent() << "oprot.writeStructEnd();" << endl;
indent_down();
out <<
indent() << "}" << endl <<
endl;
}
/**
* Generates a function to write all the fields of the struct,
* which is a function result. These fields are only written
* if they are set in the Isset array, and only one of them
* can be set at a time.
*
* @param tstruct The struct definition
*/
void t_as3_generator::generate_as3_struct_result_writer(ofstream& out,
t_struct* tstruct) {
out <<
indent() << "public function write(oprot:TProtocol):void {" << endl;
indent_up();
string name = tstruct->get_name();
const vector<t_field*>& fields = tstruct->get_sorted_members();
vector<t_field*>::const_iterator f_iter;
indent(out) << "oprot.writeStructBegin(STRUCT_DESC);" << endl;
bool first = true;
for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) {
if (first) {
first = false;
out <<
endl <<
indent() << "if ";
} else {
out << " else if ";
}
out << "(this." << generate_isset_check(*f_iter) << ") {" << endl;
indent_up();
indent(out) << "oprot.writeFieldBegin(" << constant_name((*f_iter)->get_name()) << "_FIELD_DESC);" << endl;
// Write field contents
generate_serialize_field(out, *f_iter, "this.");
// Write field closer
indent(out) <<
"oprot.writeFieldEnd();" << endl;
indent_down();
indent(out) << "}";
}
// Write the struct map
out <<
endl <<
indent() << "oprot.writeFieldStop();" << endl <<
indent() << "oprot.writeStructEnd();" << endl;
indent_down();
out <<
indent() << "}" << endl <<
endl;
}
void t_as3_generator::generate_reflection_getters(ostringstream& out, t_type* type, string field_name, string cap_name) {
(void) type;
(void) cap_name;
indent(out) << "case " << upcase_string(field_name) << ":" << endl;
indent_up();
indent(out) << "return this." << field_name << ";" << endl;
indent_down();
}
void t_as3_generator::generate_reflection_setters(ostringstream& out, t_type* type, string field_name, string cap_name) {
(void) type;
(void) cap_name;
indent(out) << "case " << upcase_string(field_name) << ":" << endl;
indent_up();
indent(out) << "if (value == null) {" << endl;
indent(out) << " unset" << get_cap_name(field_name) << "();" << endl;
indent(out) << "} else {" << endl;
indent(out) << " this." << field_name << " = value;" << endl;
indent(out) << "}" << endl;
indent(out) << "break;" << endl << endl;
indent_down();
}
void t_as3_generator::generate_generic_field_getters_setters(std::ofstream& out, t_struct* tstruct) {
std::ostringstream getter_stream;
std::ostringstream setter_stream;
// build up the bodies of both the getter and setter at once
const vector<t_field*>& fields = tstruct->get_members();
vector<t_field*>::const_iterator f_iter;
for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) {
t_field* field = *f_iter;
t_type* type = get_true_type(field->get_type());
std::string field_name = field->get_name();
std::string cap_name = get_cap_name(field_name);
indent_up();
generate_reflection_setters(setter_stream, type, field_name, cap_name);
generate_reflection_getters(getter_stream, type, field_name, cap_name);
indent_down();
}
// create the setter
indent(out) << "public function setFieldValue(fieldID:int, value:*):void {" << endl;
indent_up();
indent(out) << "switch (fieldID) {" << endl;
out << setter_stream.str();
indent(out) << "default:" << endl;
indent(out) << " throw new ArgumentError(\"Field \" + fieldID + \" doesn't exist!\");" << endl;
indent(out) << "}" << endl;
indent_down();
indent(out) << "}" << endl << endl;
// create the getter
indent(out) << "public function getFieldValue(fieldID:int):* {" << endl;
indent_up();
indent(out) << "switch (fieldID) {" << endl;
out << getter_stream.str();
indent(out) << "default:" << endl;
indent(out) << " throw new ArgumentError(\"Field \" + fieldID + \" doesn't exist!\");" << endl;
indent(out) << "}" << endl;
indent_down();
indent(out) << "}" << endl << endl;
}
// Creates a generic isSet method that takes the field number as argument
void t_as3_generator::generate_generic_isset_method(std::ofstream& out, t_struct* tstruct){
const vector<t_field*>& fields = tstruct->get_members();
vector<t_field*>::const_iterator f_iter;
// create the isSet method
indent(out) << "// Returns true if field corresponding to fieldID is set (has been assigned a value) and false otherwise" << endl;
indent(out) << "public function isSet(fieldID:int):Boolean {" << endl;
indent_up();
indent(out) << "switch (fieldID) {" << endl;
for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) {
t_field* field = *f_iter;
indent(out) << "case " << upcase_string(field->get_name()) << ":" << endl;
indent_up();
indent(out) << "return " << generate_isset_check(field) << ";" << endl;
indent_down();
}
indent(out) << "default:" << endl;
indent(out) << " throw new ArgumentError(\"Field \" + fieldID + \" doesn't exist!\");" << endl;
indent(out) << "}" << endl;
indent_down();
indent(out) << "}" << endl << endl;
}
/**
* Generates a set of As3 Bean boilerplate functions (setters, getters, etc.)
* for the given struct.
*
* @param tstruct The struct definition
*/
void t_as3_generator::generate_as3_bean_boilerplate(ofstream& out,
t_struct* tstruct, bool bindable) {
const vector<t_field*>& fields = tstruct->get_members();
vector<t_field*>::const_iterator f_iter;
for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) {
t_field* field = *f_iter;
t_type* type = get_true_type(field->get_type());
std::string field_name = field->get_name();
std::string cap_name = get_cap_name(field_name);
// Simple getter
generate_as3_doc(out, field);
indent(out) << "public function get " << field_name << "():" <<
type_name(type) << " {" << endl;
indent_up();
indent(out) << "return this._" << field_name << ";" << endl;
indent_down();
indent(out) << "}" << endl << endl;
// Simple setter
generate_as3_doc(out, field);
std::string propName = tmp("thriftPropertyChange");
if (bindable) {
indent(out) << "[Bindable(event=\"" << propName << "\")]" << endl;
}
indent(out) << "public function set " << field_name << "(" << field_name
<< ":" << type_name(type) << "):void {" << endl;
indent_up();
indent(out) << "this._" << field_name << " = " << field_name << ";" <<
endl;
generate_isset_set(out, field);
if (bindable) {
// We have to use a custom event rather than the default, because if you use the default,
// the setter only gets called if the value has changed - this means calling foo.setIntValue(0)
// will not cause foo.isIntValueSet() to return true since the value of foo._intValue wasn't changed
// so the setter was never called.
indent(out) << "dispatchEvent(new Event(\"" << propName << "\"));" << endl;
// However, if you just use a custom event, then collections won't be able to detect when elements
// in the collections have changed since they listed for PropertyChangeEvents. So, we dispatch both.
indent(out) << "dispatchEvent(new PropertyChangeEvent(PropertyChangeEvent.PROPERTY_CHANGE));" << endl;
}
indent_down();
indent(out) << "}" << endl << endl;
// Unsetter
indent(out) << "public function unset" << cap_name << "():void {" << endl;
indent_up();
if (type_can_be_null(type)) {
indent(out) << "this." << field_name << " = null;" << endl;
} else {
indent(out) << "this.__isset_" << field_name << " = false;" << endl;
}
indent_down();
indent(out) << "}" << endl << endl;
// isSet method
indent(out) << "// Returns true if field " << field_name << " is set (has been assigned a value) and false otherwise" << endl;
indent(out) << "public function is" << get_cap_name("set") << cap_name << "():Boolean {" << endl;
indent_up();
if (type_can_be_null(type)) {
indent(out) << "return this." << field_name << " != null;" << endl;
} else {
indent(out) << "return this.__isset_" << field_name << ";" << endl;
}
indent_down();
indent(out) << "}" << endl << endl;
}
}
/**
* Generates a toString() method for the given struct
*
* @param tstruct The struct definition
*/
void t_as3_generator::generate_as3_struct_tostring(ofstream& out,
t_struct* tstruct, bool bindable) {
// If it's bindable, it extends EventDispatcher so toString is an override.
out << indent() << "public " << (bindable ? "override " : "") << "function toString():String {" << endl;
indent_up();
out <<
indent() << "var ret:String = new String(\"" << tstruct->get_name() << "(\");" << endl;
out << indent() << "var first:Boolean = true;" << endl << endl;
const vector<t_field*>& fields = tstruct->get_members();
vector<t_field*>::const_iterator f_iter;
bool first = true;
for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) {
bool could_be_unset = (*f_iter)->get_req() == t_field::T_OPTIONAL;
if(could_be_unset) {
indent(out) << "if (" << generate_isset_check(*f_iter) << ") {" << endl;
indent_up();
}
t_field* field = (*f_iter);
if (!first) {
indent(out) << "if (!first) ret += \", \";" << endl;
}
indent(out) << "ret += \"" << (*f_iter)->get_name() << ":\";" << endl;
bool can_be_null = type_can_be_null(field->get_type());
if (can_be_null) {
indent(out) << "if (this." << (*f_iter)->get_name() << " == null) {" << endl;
indent(out) << " ret += \"null\";" << endl;
indent(out) << "} else {" << endl;
indent_up();
}
if (field->get_type()->is_base_type() && ((t_base_type*)(field->get_type()))->is_binary()) {
indent(out) << " ret += \"BINARY\";" << endl;
} else if(field->get_type()->is_enum()) {
indent(out) << "var " << field->get_name() << "_name:String = " << get_enum_class_name(field->get_type()) << ".VALUES_TO_NAMES[this." << (*f_iter)->get_name() << "];"<< endl;
indent(out) << "if (" << field->get_name() << "_name != null) {" << endl;
indent(out) << " ret += " << field->get_name() << "_name;" << endl;
indent(out) << " ret += \" (\";" << endl;
indent(out) << "}" << endl;
indent(out) << "ret += this." << field->get_name() << ";" << endl;
indent(out) << "if (" << field->get_name() << "_name != null) {" << endl;
indent(out) << " ret += \")\";" << endl;
indent(out) << "}" << endl;
} else {
indent(out) << "ret += this." << (*f_iter)->get_name() << ";" << endl;
}
if (can_be_null) {
indent_down();
indent(out) << "}" << endl;
}
indent(out) << "first = false;" << endl;
if(could_be_unset) {
indent_down();
indent(out) << "}" << endl;
}
first = false;
}
out <<
indent() << "ret += \")\";" << endl <<
indent() << "return ret;" << endl;
indent_down();
indent(out) << "}" << endl <<
endl;
}
/**
* Generates a static map with meta data to store information such as fieldID to
* fieldName mapping
*
* @param tstruct The struct definition
*/
void t_as3_generator::generate_as3_meta_data_map(ofstream& out,
t_struct* tstruct) {
const vector<t_field*>& fields = tstruct->get_members();
vector<t_field*>::const_iterator f_iter;
// Static Map with fieldID -> FieldMetaData mappings
indent(out) << "public static const metaDataMap:Dictionary = new Dictionary();" << endl;
if (fields.size() > 0) {
// Populate map
scope_up(out);
for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) {
t_field* field = *f_iter;
std::string field_name = field->get_name();
indent(out) << "metaDataMap[" << upcase_string(field_name) << "] = new FieldMetaData(\"" << field_name << "\", ";
// Set field requirement type (required, optional, etc.)
if (field->get_req() == t_field::T_REQUIRED) {
out << "TFieldRequirementType.REQUIRED, ";
} else if (field->get_req() == t_field::T_OPTIONAL) {
out << "TFieldRequirementType.OPTIONAL, ";
} else {
out << "TFieldRequirementType.DEFAULT, ";
}
// Create value meta data
generate_field_value_meta_data(out, field->get_type());
out << ");" << endl;
}
scope_down(out);
}
}
/**
* Returns a string with the as3 representation of the given thrift type
* (e.g. for the type struct it returns "TType.STRUCT")
*/
std::string t_as3_generator::get_as3_type_string(t_type* type) {
if (type->is_list()){
return "TType.LIST";
} else if (type->is_map()) {
return "TType.MAP";
} else if (type->is_set()) {
return "TType.SET";
} else if (type->is_struct() || type->is_xception()) {
return "TType.STRUCT";
} else if (type->is_enum()) {
return "TType.I32";
} else if (type->is_typedef()) {
return get_as3_type_string(((t_typedef*)type)->get_type());
} else if (type->is_base_type()) {
switch (((t_base_type*)type)->get_base()) {
case t_base_type::TYPE_VOID : return "TType.VOID"; break;
case t_base_type::TYPE_STRING : return "TType.STRING"; break;
case t_base_type::TYPE_BOOL : return "TType.BOOL"; break;
case t_base_type::TYPE_BYTE : return "TType.BYTE"; break;
case t_base_type::TYPE_I16 : return "TType.I16"; break;
case t_base_type::TYPE_I32 : return "TType.I32"; break;
case t_base_type::TYPE_I64 : return "TType.I64"; break;
case t_base_type::TYPE_DOUBLE : return "TType.DOUBLE"; break;
default : throw std::runtime_error("Unknown thrift type \"" + type->get_name() + "\" passed to t_as3_generator::get_as3_type_string!"); break; // This should never happen!
}
} else {
throw std::runtime_error("Unknown thrift type \"" + type->get_name() + "\" passed to t_as3_generator::get_as3_type_string!"); // This should never happen!
}
}
void t_as3_generator::generate_field_value_meta_data(std::ofstream& out, t_type* type){
out << endl;
indent_up();
indent_up();
if (type->is_struct()){
indent(out) << "new StructMetaData(TType.STRUCT, " << type_name(type);
} else if (type->is_container()){
if (type->is_list()){
indent(out) << "new ListMetaData(TType.LIST, ";
t_type* elem_type = ((t_list*)type)->get_elem_type();
generate_field_value_meta_data(out, elem_type);
} else if (type->is_set()){
indent(out) << "new SetMetaData(TType.SET, ";
t_type* elem_type = ((t_list*)type)->get_elem_type();
generate_field_value_meta_data(out, elem_type);
} else{ // map
indent(out) << "new MapMetaData(TType.MAP, ";
t_type* key_type = ((t_map*)type)->get_key_type();
t_type* val_type = ((t_map*)type)->get_val_type();
generate_field_value_meta_data(out, key_type);
out << ", ";
generate_field_value_meta_data(out, val_type);
}
} else {
indent(out) << "new FieldValueMetaData(" << get_as3_type_string(type);
}
out << ")";
indent_down();
indent_down();
}
/**
* Generates a thrift service. In C++, this comprises an entirely separate
* header and source file. The header file defines the methods and includes
* the data types defined in the main header file, and the implementation
* file contains implementations of the basic printer and default interfaces.
*
* @param tservice The service definition
*/
void t_as3_generator::generate_service(t_service* tservice) {
// Make interface file
string f_service_name = package_dir_+"/"+service_name_+".as";
f_service_.open(f_service_name.c_str());
f_service_ <<
autogen_comment() << as3_package();
scope_up(f_service_);
f_service_ << endl <<
as3_type_imports() <<
as3_thrift_imports() <<
as3_thrift_gen_imports(tservice) << endl;
generate_service_interface(tservice);
scope_down(f_service_);
f_service_.close();
// Now make the implementation/client file
f_service_name = package_dir_+"/"+service_name_+"Impl.as";
f_service_.open(f_service_name.c_str());
f_service_ <<
autogen_comment() << as3_package();
scope_up(f_service_);
f_service_ << endl <<
as3_type_imports() <<
as3_thrift_imports() <<
as3_thrift_gen_imports(tservice) << endl;
generate_service_client(tservice);
scope_down(f_service_);
f_service_ << as3_type_imports();
f_service_ << as3_thrift_imports();
f_service_ << as3_thrift_gen_imports(tservice);
f_service_ << "import " << package_name_ << ".*;" << endl;
generate_service_helpers(tservice);
f_service_.close();
// Now make the processor/server file
f_service_name = package_dir_+"/"+service_name_+"Processor.as";
f_service_.open(f_service_name.c_str());
f_service_ <<
autogen_comment() << as3_package();
scope_up(f_service_);
f_service_ << endl <<
as3_type_imports() <<
as3_thrift_imports() <<
as3_thrift_gen_imports(tservice) << endl;
generate_service_server(tservice);
scope_down(f_service_);
f_service_ << as3_type_imports();
f_service_ << as3_thrift_imports();
f_service_ << as3_thrift_gen_imports(tservice) <<endl;
f_service_ << "import " << package_name_ << ".*;" << endl;
generate_service_helpers(tservice);
f_service_.close();
}
/**
* Generates a service interface definition.
*
* @param tservice The service to generate a header definition for
*/
void t_as3_generator::generate_service_interface(t_service* tservice) {
string extends = "";
string extends_iface = "";
if (tservice->get_extends() != NULL) {
extends = type_name(tservice->get_extends());
extends_iface = " extends " + extends;
}
generate_as3_doc(f_service_, tservice);
f_service_ << indent() << "public interface " << service_name_ << extends_iface <<
" {" << endl << endl;
indent_up();
vector<t_function*> functions = tservice->get_functions();
vector<t_function*>::iterator f_iter;
for (f_iter = functions.begin(); f_iter != functions.end(); ++f_iter) {
generate_as3_doc(f_service_, *f_iter);
if (!(*f_iter)->is_oneway()) {
if ((*f_iter)->get_returntype()->is_void()) {
indent(f_service_) << "//function onError(Error):void;" << endl;
indent(f_service_) << "//function onSuccess():void;" << endl;
}
else {
indent(f_service_) << "//function onError(Error):void;" << endl;
indent(f_service_) << "//function onSuccess(" << type_name((*f_iter)->get_returntype()) << "):void;" << endl;
}
}
indent(f_service_) << function_signature(*f_iter) << ";" <<
endl << endl;
}
indent_down();
f_service_ <<
indent() << "}" << endl <<
endl;
}
/**
* Generates structs for all the service args and return types
*
* @param tservice The service
*/
void t_as3_generator::generate_service_helpers(t_service* tservice) {
vector<t_function*> functions = tservice->get_functions();
vector<t_function*>::iterator f_iter;
for (f_iter = functions.begin(); f_iter != functions.end(); ++f_iter) {
t_struct* ts = (*f_iter)->get_arglist();
generate_as3_struct_definition(f_service_, ts, false, true);
generate_function_helpers(*f_iter);
}
}
/**
* Generates a service client definition.
*
* @param tservice The service to generate a server for.
*/
void t_as3_generator::generate_service_client(t_service* tservice) {
string extends = "";
string extends_client = "";
if (tservice->get_extends() != NULL) {
extends = type_name(tservice->get_extends());
extends_client = " extends " + extends + "Impl";
}
indent(f_service_) <<
"public class " << service_name_ << "Impl" << extends_client << " implements " << service_name_ << " {" << endl;
indent_up();
indent(f_service_) <<
"public function " << service_name_ << "Impl" << "(iprot:TProtocol, oprot:TProtocol=null)" << endl;
scope_up(f_service_);
if (extends.empty()) {
f_service_ <<
indent() << "iprot_ = iprot;" << endl;
f_service_ << indent() << "if (oprot == null) {" << endl;
indent_up();
f_service_ << indent() << "oprot_ = iprot;" << endl;
indent_down();
f_service_ << indent() << "} else {" << endl;
indent_up();
f_service_ << indent() << "oprot_ = oprot;" << endl;
indent_down();
f_service_ << indent() << "}";
} else {
f_service_ <<
indent() << "super(iprot, oprot);" << endl;
}
scope_down(f_service_);
f_service_ << endl;
if (extends.empty()) {
f_service_ <<
indent() << "protected var iprot_:TProtocol;" << endl <<
indent() << "protected var oprot_:TProtocol;" << endl <<
endl <<
indent() << "protected var seqid_:int;" << endl <<
endl;
indent(f_service_) <<
"public function getInputProtocol():TProtocol" << endl;
scope_up(f_service_);
indent(f_service_) <<
"return this.iprot_;" << endl;
scope_down(f_service_);
f_service_ << endl;
indent(f_service_) <<
"public function getOutputProtocol():TProtocol" << endl;
scope_up(f_service_);
indent(f_service_) <<
"return this.oprot_;" << endl;
scope_down(f_service_);
f_service_ << endl;
}
// Generate client method implementations
vector<t_function*> functions = tservice->get_functions();
vector<t_function*>::const_iterator f_iter;
for (f_iter = functions.begin(); f_iter != functions.end(); ++f_iter) {
string funname = (*f_iter)->get_name();
// Open function
if (!(*f_iter)->is_oneway()) {
if ((*f_iter)->get_returntype()->is_void()) {
indent(f_service_) << "//function onError(Error):void;" << endl;
indent(f_service_) << "//function onSuccess():void;" << endl;
}
else {
indent(f_service_) << "//function onError(Error):void;" << endl;
indent(f_service_) << "//function onSuccess(" << type_name((*f_iter)->get_returntype()) << "):void;" << endl;
}
}
indent(f_service_) <<
"public " << function_signature(*f_iter) << endl;
scope_up(f_service_);
// Get the struct of function call params
t_struct* arg_struct = (*f_iter)->get_arglist();
string argsname = (*f_iter)->get_name() + "_args";
vector<t_field*>::const_iterator fld_iter;
const vector<t_field*>& fields = arg_struct->get_members();
// Serialize the request
f_service_ <<
indent() << "oprot_.writeMessageBegin(new TMessage(\"" << funname << "\", TMessageType.CALL, seqid_));" << endl <<
indent() << "var args:" << argsname << " = new " << argsname << "();" << endl;
for (fld_iter = fields.begin(); fld_iter != fields.end(); ++fld_iter) {
f_service_ <<
indent() << "args." << (*fld_iter)->get_name() << " = " << (*fld_iter)->get_name() << ";" << endl;
}
f_service_ <<
indent() << "args.write(oprot_);" << endl <<
indent() << "oprot_.writeMessageEnd();" << endl;
if ((*f_iter)->is_oneway()) {
f_service_ << indent() << "oprot_.getTransport().flush();" << endl;
}
else {
f_service_ << indent() << "oprot_.getTransport().flush(function(error:Error):void {" << endl;
indent_up();
f_service_ << indent() << "try {" << endl;
indent_up();
string resultname = (*f_iter)->get_name() + "_result";
f_service_ <<
indent() << "if (error != null) {" << endl <<
indent() << " if (onError != null) onError(error);" << endl <<
indent() << " return;" << endl <<
indent() << "}" << endl <<
indent() << "var msg:TMessage = iprot_.readMessageBegin();" << endl <<
indent() << "if (msg.type == TMessageType.EXCEPTION) {" << endl <<
indent() << " var x:TApplicationError = TApplicationError.read(iprot_);" << endl <<
indent() << " iprot_.readMessageEnd();" << endl <<
indent() << " if (onError != null) onError(x);" << endl <<
indent() << " return;" << endl <<
indent() << "}" << endl <<
indent() << "var result :" << resultname << " = new " << resultname << "();" << endl <<
indent() << "result.read(iprot_);" << endl <<
indent() << "iprot_.readMessageEnd();" << endl;
// Careful, only return _result if not a void function
if (!(*f_iter)->get_returntype()->is_void()) {
f_service_ <<
indent() << "if (result." << generate_isset_check("success") << ") {" << endl <<
indent() << " if (onSuccess != null) onSuccess(result.success);" << endl <<
indent() << " return;" << endl <<
indent() << "}" << endl;
}
t_struct* xs = (*f_iter)->get_xceptions();
const std::vector<t_field*>& xceptions = xs->get_members();
vector<t_field*>::const_iterator x_iter;
for (x_iter = xceptions.begin(); x_iter != xceptions.end(); ++x_iter) {
f_service_ <<
indent() << "if (result." << (*x_iter)->get_name() << " != null) {" << endl <<
indent() << " if (onError != null) onError(result." << (*x_iter)->get_name() << ");" << endl <<
indent() << " return;" << endl <<
indent() << "}" << endl;
}
// If you get here it's an exception, unless a void function
if ((*f_iter)->get_returntype()->is_void()) {
f_service_ <<
indent() << "if (onSuccess != null) onSuccess();" << endl <<
indent() << "return;" << endl;
} else {
f_service_ <<
indent() << "if (onError != null) onError(new TApplicationError(TApplicationError.MISSING_RESULT, \"" << (*f_iter)->get_name() << " failed: unknown result\"));" << endl;
}
indent_down();
f_service_ << indent() << "} catch (e:TError) {" << endl <<
indent() << " if (onError != null) onError(e);" << endl <<
indent() << "}" << endl;
indent_down();
indent(f_service_) <<
"});" << endl;
}
// Close function
scope_down(f_service_);
f_service_ << endl;
}
indent_down();
indent(f_service_) <<
"}" << endl;
}
/**
* Generates a service server definition.
*
* @param tservice The service to generate a server for.
*/
void t_as3_generator::generate_service_server(t_service* tservice) {
// Generate the dispatch methods
vector<t_function*> functions = tservice->get_functions();
vector<t_function*>::iterator f_iter;
// Extends stuff
string extends = "";
string extends_processor = "";
if (tservice->get_extends() != NULL) {
extends = type_name(tservice->get_extends());
extends_processor = " extends " + extends + "Processor";
}
// Generate the header portion
indent(f_service_) <<
"public class " << service_name_ << "Processor" << extends_processor << " implements TProcessor {" << endl;
indent_up();
indent(f_service_) <<
"public function " << service_name_ << "Processor(iface:" << service_name_ << ")" << endl;
scope_up(f_service_);
if (!extends.empty()) {
f_service_ <<
indent() << "super(iface);" << endl;
}
f_service_ <<
indent() << "iface_ = iface;" << endl;
for (f_iter = functions.begin(); f_iter != functions.end(); ++f_iter) {
f_service_ <<
indent() << "PROCESS_MAP[\"" << (*f_iter)->get_name() << "\"] = " << (*f_iter)->get_name() << "();" << endl;
}
scope_down(f_service_);
f_service_ << endl;
f_service_ <<
indent() << "private var iface_:" << service_name_ << ";" << endl;
if (extends.empty()) {
f_service_ <<
indent() << "protected const PROCESS_MAP:Dictionary = new Dictionary();" << endl;
}
f_service_ << endl;
// Generate the server implementation
string override = "";
if (tservice->get_extends() != NULL) {
override = "override ";
}
indent(f_service_) << override << "public function process(iprot:TProtocol, oprot:TProtocol):Boolean" << endl;
scope_up(f_service_);
f_service_ <<
indent() << "var msg:TMessage = iprot.readMessageBegin();" << endl;
// TODO(mcslee): validate message, was the seqid etc. legit?
// AS- If all method is oneway:
// do you have an oprot?
// do you you need nullcheck?
f_service_ <<
indent() << "var fn:Function = PROCESS_MAP[msg.name];" << endl <<
indent() << "if (fn == null) {" << endl <<
indent() << " TProtocolUtil.skip(iprot, TType.STRUCT);" << endl <<
indent() << " iprot.readMessageEnd();" << endl <<
indent() << " var x:TApplicationError = new TApplicationError(TApplicationError.UNKNOWN_METHOD, \"Invalid method name: '\"+msg.name+\"'\");" << endl <<
indent() << " oprot.writeMessageBegin(new TMessage(msg.name, TMessageType.EXCEPTION, msg.seqid));" << endl <<
indent() << " x.write(oprot);" << endl <<
indent() << " oprot.writeMessageEnd();" << endl <<
indent() << " oprot.getTransport().flush();" << endl <<
indent() << " return true;" << endl <<
indent() << "}" << endl <<
indent() << "fn.call(this,msg.seqid, iprot, oprot);" << endl;
f_service_ <<
indent() << "return true;" << endl;
scope_down(f_service_);
f_service_ << endl;
// Generate the process subfunctions
for (f_iter = functions.begin(); f_iter != functions.end(); ++f_iter) {
generate_process_function(tservice, *f_iter);
}
indent_down();
indent(f_service_) <<
"}" << endl <<
endl;
}
/**
* Generates a struct and helpers for a function.
*
* @param tfunction The function
*/
void t_as3_generator::generate_function_helpers(t_function* tfunction) {
if (tfunction->is_oneway()) {
return;
}
t_struct result(program_, tfunction->get_name() + "_result");
t_field success(tfunction->get_returntype(), "success", 0);
if (!tfunction->get_returntype()->is_void()) {
result.append(&success);
}
t_struct* xs = tfunction->get_xceptions();
const vector<t_field*>& fields = xs->get_members();
vector<t_field*>::const_iterator f_iter;
for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) {
result.append(*f_iter);
}
generate_as3_struct_definition(f_service_, &result, false, true, true);
}
/**
* Generates a process function definition.
*
* @param tfunction The function to write a dispatcher for
*/
void t_as3_generator::generate_process_function(t_service* tservice,
t_function* tfunction) {
(void) tservice;
// Open class
indent(f_service_) <<
"private function " << tfunction->get_name() << "():Function {" << endl;
indent_up();
// Open function
indent(f_service_) <<
"return function(seqid:int, iprot:TProtocol, oprot:TProtocol):void"
<< endl;
scope_up(f_service_);
string argsname = tfunction->get_name() + "_args";
string resultname = tfunction->get_name() + "_result";
f_service_ <<
indent() << "var args:"<< argsname << " = new " << argsname << "();" << endl <<
indent() << "args.read(iprot);" << endl <<
indent() << "iprot.readMessageEnd();" << endl;
t_struct* xs = tfunction->get_xceptions();
const std::vector<t_field*>& xceptions = xs->get_members();
vector<t_field*>::const_iterator x_iter;
// Declare result for non oneway function
if (!tfunction->is_oneway()) {
f_service_ <<
indent() << "var result:" << resultname << " = new " << resultname << "();" << endl;
}
// Try block for a function with exceptions
if (xceptions.size() > 0) {
f_service_ <<
indent() << "try {" << endl;
indent_up();
}
// Generate the function call
t_struct* arg_struct = tfunction->get_arglist();
const std::vector<t_field*>& fields = arg_struct->get_members();
vector<t_field*>::const_iterator f_iter;
f_service_ << indent();
if (tfunction->is_oneway()){
f_service_ <<
"iface_." << tfunction->get_name() << "(";
bool first = true;
for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) {
if (first) {
first = false;
} else {
f_service_ << ", ";
}
f_service_ << "args." << (*f_iter)->get_name();
}
f_service_ << ");" << endl;
} else {
f_service_ << "// sorry this operation is not supported yet" << endl;
f_service_ << indent() << "throw new Error(\"This is not yet supported\");" << endl;
}
// Set isset on success field
if (!tfunction->is_oneway() && !tfunction->get_returntype()->is_void() && !type_can_be_null(tfunction->get_returntype())) {
f_service_ <<
indent() << "result.set" << get_cap_name("success") << get_cap_name("isSet") << "(true);" << endl;
}
if (!tfunction->is_oneway() && xceptions.size() > 0) {
indent_down();
f_service_ << indent() << "}";
for (x_iter = xceptions.begin(); x_iter != xceptions.end(); ++x_iter) {
f_service_ << " catch (" << (*x_iter)->get_name() << ":" << type_name((*x_iter)->get_type(), false, false) << ") {" << endl;
if (!tfunction->is_oneway()) {
indent_up();
f_service_ <<
indent() << "result." << (*x_iter)->get_name() << " = " << (*x_iter)->get_name() << ";" << endl;
indent_down();
f_service_ << indent() << "}";
} else {
f_service_ << "}";
}
}
f_service_ << " catch (th:Error) {" << endl;
indent_up();
f_service_ <<
indent() << "trace(\"Internal error processing " << tfunction->get_name() << "\", th);" << endl <<
indent() << "var x:TApplicationError = new TApplicationError(TApplicationError.INTERNAL_ERROR, \"Internal error processing " << tfunction->get_name() << "\");" << endl <<
indent() << "oprot.writeMessageBegin(new TMessage(\"" << tfunction->get_name() << "\", TMessageType.EXCEPTION, seqid));" << endl <<
indent() << "x.write(oprot);" << endl <<
indent() << "oprot.writeMessageEnd();" << endl <<
indent() << "oprot.getTransport().flush();" << endl <<
indent() << "return;" << endl;
indent_down();
f_service_ << indent() << "}" << endl;
}
// Shortcut out here for oneway functions
if (tfunction->is_oneway()) {
f_service_ <<
indent() << "return;" << endl;
scope_down(f_service_);
// Close class
indent_down();
f_service_ <<
indent() << "}" << endl <<
endl;
return;
}
f_service_ <<
indent() << "oprot.writeMessageBegin(new TMessage(\"" << tfunction->get_name() << "\", TMessageType.REPLY, seqid));" << endl <<
indent() << "result.write(oprot);" << endl <<
indent() << "oprot.writeMessageEnd();" << endl <<
indent() << "oprot.getTransport().flush();" << endl;
// Close function
scope_down(f_service_);
f_service_ << endl;
// Close class
indent_down();
f_service_ <<
indent() << "}" << endl <<
endl;
}
/**
* Deserializes a field of any type.
*
* @param tfield The field
* @param prefix The variable name or container for this field
*/
void t_as3_generator::generate_deserialize_field(ofstream& out,
t_field* tfield,
string prefix) {
t_type* type = get_true_type(tfield->get_type());
if (type->is_void()) {
throw "CANNOT GENERATE DESERIALIZE CODE FOR void TYPE: " +
prefix + tfield->get_name();
}
string name = prefix + tfield->get_name();
if (type->is_struct() || type->is_xception()) {
generate_deserialize_struct(out,
(t_struct*)type,
name);
} else if (type->is_container()) {
generate_deserialize_container(out, type, name);
} else if (type->is_base_type() || type->is_enum()) {
indent(out) <<
name << " = iprot.";
if (type->is_base_type()) {
t_base_type::t_base tbase = ((t_base_type*)type)->get_base();
switch (tbase) {
case t_base_type::TYPE_VOID:
throw "compiler error: cannot serialize void field in a struct: " +
name;
break;
case t_base_type::TYPE_STRING:
if (((t_base_type*)type)->is_binary()) {
out << "readBinary();";
} else {
out << "readString();";
}
break;
case t_base_type::TYPE_BOOL:
out << "readBool();";
break;
case t_base_type::TYPE_BYTE:
out << "readByte();";
break;
case t_base_type::TYPE_I16:
out << "readI16();";
break;
case t_base_type::TYPE_I32:
out << "readI32();";
break;
case t_base_type::TYPE_I64:
out << "readI64();";
break;
case t_base_type::TYPE_DOUBLE:
out << "readDouble();";
break;
default:
throw "compiler error: no As3 name for base type " + t_base_type::t_base_name(tbase);
}
} else if (type->is_enum()) {
out << "readI32();";
}
out <<
endl;
} else {
printf("DO NOT KNOW HOW TO DESERIALIZE FIELD '%s' TYPE '%s'\n",
tfield->get_name().c_str(), type_name(type).c_str());
}
}
/**
* Generates an unserializer for a struct, invokes read()
*/
void t_as3_generator::generate_deserialize_struct(ofstream& out,
t_struct* tstruct,
string prefix) {
out <<
indent() << prefix << " = new " << type_name(tstruct) << "();" << endl <<
indent() << prefix << ".read(iprot);" << endl;
}
/**
* Deserializes a container by reading its size and then iterating
*/
void t_as3_generator::generate_deserialize_container(ofstream& out,
t_type* ttype,
string prefix) {
scope_up(out);
string obj;
if (ttype->is_map()) {
obj = tmp("_map");
} else if (ttype->is_set()) {
obj = tmp("_set");
} else if (ttype->is_list()) {
obj = tmp("_list");
}
// Declare variables, read header
if (ttype->is_map()) {
indent(out) << "var " << obj << ":TMap = iprot.readMapBegin();" << endl;
} else if (ttype->is_set()) {
indent(out) << "var " << obj << ":TSet = iprot.readSetBegin();" << endl;
} else if (ttype->is_list()) {
indent(out) << "var " << obj << ":TList = iprot.readListBegin();" << endl;
}
indent(out)
<< prefix << " = new " << type_name(ttype, false, true)
// size the collection correctly
<< "("
<< ");" << endl;
// For loop iterates over elements
string i = tmp("_i");
indent(out) <<
"for (var " << i << ":int = 0; " <<
i << " < " << obj << ".size" << "; " <<
"++" << i << ")" << endl;
scope_up(out);
if (ttype->is_map()) {
generate_deserialize_map_element(out, (t_map*)ttype, prefix);
} else if (ttype->is_set()) {
generate_deserialize_set_element(out, (t_set*)ttype, prefix);
} else if (ttype->is_list()) {
generate_deserialize_list_element(out, (t_list*)ttype, prefix);
}
scope_down(out);
// Read container end
if (ttype->is_map()) {
indent(out) << "iprot.readMapEnd();" << endl;
} else if (ttype->is_set()) {
indent(out) << "iprot.readSetEnd();" << endl;
} else if (ttype->is_list()) {
indent(out) << "iprot.readListEnd();" << endl;
}
scope_down(out);
}
/**
* Generates code to deserialize a map
*/
void t_as3_generator::generate_deserialize_map_element(ofstream& out,
t_map* tmap,
string prefix) {
string key = tmp("_key");
string val = tmp("_val");
t_field fkey(tmap->get_key_type(), key);
t_field fval(tmap->get_val_type(), val);
indent(out) <<
declare_field(&fkey) << endl;
indent(out) <<
declare_field(&fval) << endl;
generate_deserialize_field(out, &fkey);
generate_deserialize_field(out, &fval);
indent(out) <<
prefix << "[" << key << "] = " << val << ";" << endl;
}
/**
* Deserializes a set element
*/
void t_as3_generator::generate_deserialize_set_element(ofstream& out,
t_set* tset,
string prefix) {
string elem = tmp("_elem");
t_field felem(tset->get_elem_type(), elem);
indent(out) <<
declare_field(&felem) << endl;
generate_deserialize_field(out, &felem);
indent(out) <<
prefix << ".add(" << elem << ");" << endl;
}
/**
* Deserializes a list element
*/
void t_as3_generator::generate_deserialize_list_element(ofstream& out,
t_list* tlist,
string prefix) {
string elem = tmp("_elem");
t_field felem(tlist->get_elem_type(), elem);
indent(out) <<
declare_field(&felem) << endl;
generate_deserialize_field(out, &felem);
indent(out) <<
prefix << ".push(" << elem << ");" << endl;
}
/**
* Serializes a field of any type.
*
* @param tfield The field to serialize
* @param prefix Name to prepend to field name
*/
void t_as3_generator::generate_serialize_field(ofstream& out,
t_field* tfield,
string prefix) {
t_type* type = get_true_type(tfield->get_type());
// Do nothing for void types
if (type->is_void()) {
throw "CANNOT GENERATE SERIALIZE CODE FOR void TYPE: " +
prefix + tfield->get_name();
}
if (type->is_struct() || type->is_xception()) {
generate_serialize_struct(out,
(t_struct*)type,
prefix + tfield->get_name());
} else if (type->is_container()) {
generate_serialize_container(out,
type,
prefix + tfield->get_name());
} else if (type->is_base_type() || type->is_enum()) {
string name = prefix + tfield->get_name();
indent(out) <<
"oprot.";
if (type->is_base_type()) {
t_base_type::t_base tbase = ((t_base_type*)type)->get_base();
switch (tbase) {
case t_base_type::TYPE_VOID:
throw
"compiler error: cannot serialize void field in a struct: " + name;
break;
case t_base_type::TYPE_STRING:
if (((t_base_type*)type)->is_binary()) {
out << "writeBinary(" << name << ");";
} else {
out << "writeString(" << name << ");";
}
break;
case t_base_type::TYPE_BOOL:
out << "writeBool(" << name << ");";
break;
case t_base_type::TYPE_BYTE:
out << "writeByte(" << name << ");";
break;
case t_base_type::TYPE_I16:
out << "writeI16(" << name << ");";
break;
case t_base_type::TYPE_I32:
out << "writeI32(" << name << ");";
break;
case t_base_type::TYPE_I64:
out << "writeI64(" << name << ");";
break;
case t_base_type::TYPE_DOUBLE:
out << "writeDouble(" << name << ");";
break;
default:
throw "compiler error: no As3 name for base type " + t_base_type::t_base_name(tbase);
}
} else if (type->is_enum()) {
out << "writeI32(" << name << ");";
}
out << endl;
} else {
printf("DO NOT KNOW HOW TO SERIALIZE FIELD '%s%s' TYPE '%s'\n",
prefix.c_str(),
tfield->get_name().c_str(),
type_name(type).c_str());
}
}
/**
* Serializes all the members of a struct.
*
* @param tstruct The struct to serialize
* @param prefix String prefix to attach to all fields
*/
void t_as3_generator::generate_serialize_struct(ofstream& out,
t_struct* tstruct,
string prefix) {
(void) tstruct;
out <<
indent() << prefix << ".write(oprot);" << endl;
}
/**
* Serializes a container by writing its size then the elements.
*
* @param ttype The type of container
* @param prefix String prefix for fields
*/
void t_as3_generator::generate_serialize_container(ofstream& out,
t_type* ttype,
string prefix) {
scope_up(out);
if (ttype->is_map()) {
string iter = tmp("_key");
string counter = tmp("_sizeCounter");
indent(out) << "var " << counter << ":int = 0;" << endl;
indent(out) << "for (var " << iter << ":* in " << prefix << ") {" << endl;
indent(out) << " " << counter << +"++;" << endl;
indent(out) << "}" << endl;
indent(out) <<
"oprot.writeMapBegin(new TMap(" <<
type_to_enum(((t_map*)ttype)->get_key_type()) << ", " <<
type_to_enum(((t_map*)ttype)->get_val_type()) << ", " <<
counter << "));" << endl;
} else if (ttype->is_set()) {
indent(out) <<
"oprot.writeSetBegin(new TSet(" <<
type_to_enum(((t_set*)ttype)->get_elem_type()) << ", " <<
prefix << ".size));" << endl;
} else if (ttype->is_list()) {
indent(out) <<
"oprot.writeListBegin(new TList(" <<
type_to_enum(((t_list*)ttype)->get_elem_type()) << ", " <<
prefix << ".length));" << endl;
}
string iter = tmp("elem");
if (ttype->is_map()) {
indent(out) <<
"for (var " << iter << ":* in " << prefix << ")";
} else if (ttype->is_set()) {
indent(out) <<
"for each (var " << iter << ":* in " << prefix << ".toArray())";
} else if (ttype->is_list()) {
indent(out) <<
"for each (var " << iter << ":* in " << prefix << ")";
}
scope_up(out);
if (ttype->is_map()) {
generate_serialize_map_element(out, (t_map*)ttype, iter, prefix);
} else if (ttype->is_set()) {
generate_serialize_set_element(out, (t_set*)ttype, iter);
} else if (ttype->is_list()) {
generate_serialize_list_element(out, (t_list*)ttype, iter);
}
scope_down(out);
if (ttype->is_map()) {
indent(out) <<
"oprot.writeMapEnd();" << endl;
} else if (ttype->is_set()) {
indent(out) <<
"oprot.writeSetEnd();" << endl;
} else if (ttype->is_list()) {
indent(out) <<
"oprot.writeListEnd();" << endl;
}
scope_down(out);
}
/**
* Serializes the members of a map.
*/
void t_as3_generator::generate_serialize_map_element(ofstream& out,
t_map* tmap,
string iter,
string map) {
t_field kfield(tmap->get_key_type(), iter);
generate_serialize_field(out, &kfield, "");
t_field vfield(tmap->get_val_type(), map + "[" + iter + "]");
generate_serialize_field(out, &vfield, "");
}
/**
* Serializes the members of a set.
*/
void t_as3_generator::generate_serialize_set_element(ofstream& out,
t_set* tset,
string iter) {
t_field efield(tset->get_elem_type(), iter);
generate_serialize_field(out, &efield, "");
}
/**
* Serializes the members of a list.
*/
void t_as3_generator::generate_serialize_list_element(ofstream& out,
t_list* tlist,
string iter) {
t_field efield(tlist->get_elem_type(), iter);
generate_serialize_field(out, &efield, "");
}
/**
* Returns a As3 type name
*
* @param ttype The type
* @param container Is the type going inside a container?
* @return As3 type name, i.e. HashMap<Key,Value>
*/
string t_as3_generator::type_name(t_type* ttype, bool in_container, bool in_init) {
(void) in_init;
// In As3 typedefs are just resolved to their real type
ttype = get_true_type(ttype);
string prefix;
if (ttype->is_base_type()) {
return base_type_name((t_base_type*)ttype, in_container);
} else if (ttype->is_enum()) {
return "int";
} else if (ttype->is_map()) {
return "Dictionary";
} else if (ttype->is_set()) {
return "Set";
} else if (ttype->is_list()) {
return "Array";
}
// Check for namespacing
t_program* program = ttype->get_program();
if (program != NULL && program != program_) {
string package = program->get_namespace("as3");
if (!package.empty()) {
return package + "." + ttype->get_name();
}
}
return ttype->get_name();
}
/**
* Returns the AS3 type that corresponds to the thrift type.
*
* @param tbase The base type
* @param container Is it going in a As3 container?
*/
string t_as3_generator::base_type_name(t_base_type* type,
bool in_container) {
(void) in_container;
t_base_type::t_base tbase = type->get_base();
switch (tbase) {
case t_base_type::TYPE_VOID:
return "void";
case t_base_type::TYPE_STRING:
if (type->is_binary()) {
return "ByteArray";
} else {
return "String";
}
case t_base_type::TYPE_BOOL:
return "Boolean";
case t_base_type::TYPE_BYTE:
case t_base_type::TYPE_I16:
case t_base_type::TYPE_I32:
return "int";
case t_base_type::TYPE_I64:
throw "i64 is not yet supported in as3";
case t_base_type::TYPE_DOUBLE:
return "Number";
default:
throw "compiler error: no C++ name for base type " + t_base_type::t_base_name(tbase);
}
}
/**
* Declares a field, which may include initialization as necessary.
*
* @param ttype The type
*/
string t_as3_generator::declare_field(t_field* tfield, bool init) {
// TODO(mcslee): do we ever need to initialize the field?
string result = "var " + tfield->get_name() + ":" + type_name(tfield->get_type());
if (init) {
t_type* ttype = get_true_type(tfield->get_type());
if (ttype->is_base_type() && tfield->get_value() != NULL) {
ofstream dummy;
result += " = " + render_const_value(dummy, tfield->get_name(), ttype, tfield->get_value());
} else if (ttype->is_base_type()) {
t_base_type::t_base tbase = ((t_base_type*)ttype)->get_base();
switch (tbase) {
case t_base_type::TYPE_VOID:
throw "NO T_VOID CONSTRUCT";
case t_base_type::TYPE_STRING:
result += " = null";
break;
case t_base_type::TYPE_BOOL:
result += " = false";
break;
case t_base_type::TYPE_BYTE:
case t_base_type::TYPE_I16:
case t_base_type::TYPE_I32:
case t_base_type::TYPE_I64:
result += " = 0";
break;
case t_base_type::TYPE_DOUBLE:
result += " = (double)0";
break;
}
} else if (ttype->is_enum()) {
result += " = 0";
} else if (ttype->is_container()) {
result += " = new " + type_name(ttype, false, true) + "()";
} else {
result += " = new " + type_name(ttype, false, true) + "()";;
}
}
return result + ";";
}
/**
* Renders a function signature of the form 'type name(args)'
*
* @param tfunction Function definition
* @return String of rendered function definition
*/
string t_as3_generator::function_signature(t_function* tfunction,
string prefix) {
std::string arguments = argument_list(tfunction->get_arglist());
if (! tfunction->is_oneway()) {
if (arguments != "") {
arguments += ", ";
}
arguments += "onError:Function, onSuccess:Function";
}
std::string result = "function " +
prefix + tfunction->get_name() + "(" + arguments + "):void";
return result;
}
/**
* Renders a comma separated field list, with type names
*/
string t_as3_generator::argument_list(t_struct* tstruct) {
string result = "";
const vector<t_field*>& fields = tstruct->get_members();
vector<t_field*>::const_iterator f_iter;
bool first = true;
for (f_iter = fields.begin(); f_iter != fields.end(); ++f_iter) {
if (first) {
first = false;
} else {
result += ", ";
}
result += (*f_iter)->get_name() + ":" + type_name((*f_iter)->get_type());
}
return result;
}
/**
* Converts the parse type to a C++ enum string for the given type.
*/
string t_as3_generator::type_to_enum(t_type* type) {
type = get_true_type(type);
if (type->is_base_type()) {
t_base_type::t_base tbase = ((t_base_type*)type)->get_base();
switch (tbase) {
case t_base_type::TYPE_VOID:
throw "NO T_VOID CONSTRUCT";
case t_base_type::TYPE_STRING:
return "TType.STRING";
case t_base_type::TYPE_BOOL:
return "TType.BOOL";
case t_base_type::TYPE_BYTE:
return "TType.BYTE";
case t_base_type::TYPE_I16:
return "TType.I16";
case t_base_type::TYPE_I32:
return "TType.I32";
case t_base_type::TYPE_I64:
return "TType.I64";
case t_base_type::TYPE_DOUBLE:
return "TType.DOUBLE";
}
} else if (type->is_enum()) {
return "TType.I32";
} else if (type->is_struct() || type->is_xception()) {
return "TType.STRUCT";
} else if (type->is_map()) {
return "TType.MAP";
} else if (type->is_set()) {
return "TType.SET";
} else if (type->is_list()) {
return "TType.LIST";
}
throw "INVALID TYPE IN type_to_enum: " + type->get_name();
}
/**
* Applies the correct style to a string based on the value of nocamel_style_
*/
std::string t_as3_generator::get_cap_name(std::string name){
name[0] = toupper(name[0]);
return name;
}
string t_as3_generator::constant_name(string name) {
string constant_name;
bool is_first = true;
bool was_previous_char_upper = false;
for (string::iterator iter = name.begin(); iter != name.end(); ++iter) {
string::value_type character = (*iter);
bool is_upper = isupper(character);
if (is_upper && !is_first && !was_previous_char_upper) {
constant_name += '_';
}
constant_name += toupper(character);
is_first = false;
was_previous_char_upper = is_upper;
}
return constant_name;
}
/**
* Emits a As3Doc comment if the provided object has a doc in Thrift
*/
void t_as3_generator::generate_as3_doc(ofstream &out,
t_doc* tdoc) {
if (tdoc->has_doc()) {
generate_docstring_comment(out,
"/**\n",
" * ", tdoc->get_doc(),
" */\n");
}
}
/**
* Emits a As3Doc comment if the provided function object has a doc in Thrift
*/
void t_as3_generator::generate_as3_doc(ofstream &out,
t_function* tfunction) {
if (tfunction->has_doc()) {
stringstream ss;
ss << tfunction->get_doc();
const vector<t_field*>& fields = tfunction->get_arglist()->get_members();
vector<t_field*>::const_iterator p_iter;
for (p_iter = fields.begin(); p_iter != fields.end(); ++p_iter) {
t_field* p = *p_iter;
ss << "\n@param " << p->get_name();
if (p->has_doc()) {
ss << " " << p->get_doc();
}
}
generate_docstring_comment(out,
"/**\n",
" * ", ss.str(),
" */\n");
}
}
std::string t_as3_generator::generate_isset_check(t_field* field) {
return generate_isset_check(field->get_name());
}
std::string t_as3_generator::generate_isset_check(std::string field_name) {
return "is" + get_cap_name("set") + get_cap_name(field_name) + "()";
}
void t_as3_generator::generate_isset_set(ofstream& out, t_field* field) {
if (!type_can_be_null(field->get_type())) {
indent(out) << "this.__isset_" << field->get_name() << " = true;" << endl;
}
}
std::string t_as3_generator::get_enum_class_name(t_type* type) {
string package = "";
t_program* program = type->get_program();
if (program != NULL && program != program_) {
package = program->get_namespace("as3") + ".";
}
return package + type->get_name();
}
THRIFT_REGISTER_GENERATOR(as3, "AS3",
" bindable: Add [bindable] metadata to all the struct classes.\n"
)