| /* |
| * Heap object representation. |
| * |
| * Heap objects are used for Ecmascript objects, arrays, and functions, |
| * but also for internal control like declarative and object environment |
| * records. Compiled functions, native functions, and threads are also |
| * objects but with an extended C struct. |
| * |
| * Objects provide the required Ecmascript semantics and exotic behaviors |
| * especially for property access. |
| * |
| * Properties are stored in three conceptual parts: |
| * |
| * 1. A linear 'entry part' contains ordered key-value-attributes triples |
| * and is the main method of string properties. |
| * |
| * 2. An optional linear 'array part' is used for array objects to store a |
| * (dense) range of [0,N[ array indexed entries with default attributes |
| * (writable, enumerable, configurable). If the array part would become |
| * sparse or non-default attributes are required, the array part is |
| * abandoned and moved to the 'entry part'. |
| * |
| * 3. An optional 'hash part' is used to optimize lookups of the entry |
| * part; it is used only for objects with sufficiently many properties |
| * and can be abandoned without loss of information. |
| * |
| * These three conceptual parts are stored in a single memory allocated area. |
| * This minimizes memory allocation overhead but also means that all three |
| * parts are resized together, and makes property access a bit complicated. |
| */ |
| |
| #ifndef DUK_HOBJECT_H_INCLUDED |
| #define DUK_HOBJECT_H_INCLUDED |
| |
| /* Object flag. There are currently 26 flag bits available. Make sure |
| * this stays in sync with debugger object inspection code. |
| */ |
| #define DUK_HOBJECT_FLAG_EXTENSIBLE DUK_HEAPHDR_USER_FLAG(0) /* object is extensible */ |
| #define DUK_HOBJECT_FLAG_CONSTRUCTABLE DUK_HEAPHDR_USER_FLAG(1) /* object is constructable */ |
| #define DUK_HOBJECT_FLAG_BOUND DUK_HEAPHDR_USER_FLAG(2) /* object established using Function.prototype.bind() */ |
| #define DUK_HOBJECT_FLAG_COMPILEDFUNCTION DUK_HEAPHDR_USER_FLAG(4) /* object is a compiled function (duk_hcompiledfunction) */ |
| #define DUK_HOBJECT_FLAG_NATIVEFUNCTION DUK_HEAPHDR_USER_FLAG(5) /* object is a native function (duk_hnativefunction) */ |
| #define DUK_HOBJECT_FLAG_BUFFEROBJECT DUK_HEAPHDR_USER_FLAG(6) /* object is a buffer object (duk_hbufferobject) (always exotic) */ |
| #define DUK_HOBJECT_FLAG_THREAD DUK_HEAPHDR_USER_FLAG(7) /* object is a thread (duk_hthread) */ |
| #define DUK_HOBJECT_FLAG_ARRAY_PART DUK_HEAPHDR_USER_FLAG(8) /* object has an array part (a_size may still be 0) */ |
| #define DUK_HOBJECT_FLAG_STRICT DUK_HEAPHDR_USER_FLAG(9) /* function: function object is strict */ |
| #define DUK_HOBJECT_FLAG_NOTAIL DUK_HEAPHDR_USER_FLAG(10) /* function: function must not be tail called */ |
| #define DUK_HOBJECT_FLAG_NEWENV DUK_HEAPHDR_USER_FLAG(11) /* function: create new environment when called (see duk_hcompiledfunction) */ |
| #define DUK_HOBJECT_FLAG_NAMEBINDING DUK_HEAPHDR_USER_FLAG(12) /* function: create binding for func name (function templates only, used for named function expressions) */ |
| #define DUK_HOBJECT_FLAG_CREATEARGS DUK_HEAPHDR_USER_FLAG(13) /* function: create an arguments object on function call */ |
| #define DUK_HOBJECT_FLAG_ENVRECCLOSED DUK_HEAPHDR_USER_FLAG(14) /* envrec: (declarative) record is closed */ |
| #define DUK_HOBJECT_FLAG_EXOTIC_ARRAY DUK_HEAPHDR_USER_FLAG(15) /* 'Array' object, array length and index exotic behavior */ |
| #define DUK_HOBJECT_FLAG_EXOTIC_STRINGOBJ DUK_HEAPHDR_USER_FLAG(16) /* 'String' object, array index exotic behavior */ |
| #define DUK_HOBJECT_FLAG_EXOTIC_ARGUMENTS DUK_HEAPHDR_USER_FLAG(17) /* 'Arguments' object and has arguments exotic behavior (non-strict callee) */ |
| #define DUK_HOBJECT_FLAG_EXOTIC_DUKFUNC DUK_HEAPHDR_USER_FLAG(18) /* Duktape/C (nativefunction) object, exotic 'length' */ |
| #define DUK_HOBJECT_FLAG_EXOTIC_PROXYOBJ DUK_HEAPHDR_USER_FLAG(19) /* 'Proxy' object */ |
| |
| #define DUK_HOBJECT_FLAG_CLASS_BASE DUK_HEAPHDR_USER_FLAG_NUMBER(20) |
| #define DUK_HOBJECT_FLAG_CLASS_BITS 5 |
| |
| #define DUK_HOBJECT_GET_CLASS_NUMBER(h) \ |
| DUK_HEAPHDR_GET_FLAG_RANGE(&(h)->hdr, DUK_HOBJECT_FLAG_CLASS_BASE, DUK_HOBJECT_FLAG_CLASS_BITS) |
| #define DUK_HOBJECT_SET_CLASS_NUMBER(h,v) \ |
| DUK_HEAPHDR_SET_FLAG_RANGE(&(h)->hdr, DUK_HOBJECT_FLAG_CLASS_BASE, DUK_HOBJECT_FLAG_CLASS_BITS, (v)) |
| |
| #define DUK_HOBJECT_GET_CLASS_MASK(h) \ |
| (1UL << DUK_HEAPHDR_GET_FLAG_RANGE(&(h)->hdr, DUK_HOBJECT_FLAG_CLASS_BASE, DUK_HOBJECT_FLAG_CLASS_BITS)) |
| |
| /* Macro for creating flag initializer from a class number. |
| * Unsigned type cast is needed to avoid warnings about coercing |
| * a signed integer to an unsigned one; the largest class values |
| * have the highest bit (bit 31) set which causes this. |
| */ |
| #define DUK_HOBJECT_CLASS_AS_FLAGS(v) (((duk_uint_t) (v)) << DUK_HOBJECT_FLAG_CLASS_BASE) |
| |
| /* E5 Section 8.6.2 + custom classes */ |
| #define DUK_HOBJECT_CLASS_UNUSED 0 |
| #define DUK_HOBJECT_CLASS_ARGUMENTS 1 |
| #define DUK_HOBJECT_CLASS_ARRAY 2 |
| #define DUK_HOBJECT_CLASS_BOOLEAN 3 |
| #define DUK_HOBJECT_CLASS_DATE 4 |
| #define DUK_HOBJECT_CLASS_ERROR 5 |
| #define DUK_HOBJECT_CLASS_FUNCTION 6 |
| #define DUK_HOBJECT_CLASS_JSON 7 |
| #define DUK_HOBJECT_CLASS_MATH 8 |
| #define DUK_HOBJECT_CLASS_NUMBER 9 |
| #define DUK_HOBJECT_CLASS_OBJECT 10 |
| #define DUK_HOBJECT_CLASS_REGEXP 11 |
| #define DUK_HOBJECT_CLASS_STRING 12 |
| #define DUK_HOBJECT_CLASS_GLOBAL 13 |
| #define DUK_HOBJECT_CLASS_OBJENV 14 /* custom */ |
| #define DUK_HOBJECT_CLASS_DECENV 15 /* custom */ |
| #define DUK_HOBJECT_CLASS_BUFFER 16 /* custom; implies DUK_HOBJECT_IS_BUFFEROBJECT */ |
| #define DUK_HOBJECT_CLASS_POINTER 17 /* custom */ |
| #define DUK_HOBJECT_CLASS_THREAD 18 /* custom; implies DUK_HOBJECT_IS_THREAD */ |
| #define DUK_HOBJECT_CLASS_ARRAYBUFFER 19 /* implies DUK_HOBJECT_IS_BUFFEROBJECT */ |
| #define DUK_HOBJECT_CLASS_DATAVIEW 20 |
| #define DUK_HOBJECT_CLASS_INT8ARRAY 21 |
| #define DUK_HOBJECT_CLASS_UINT8ARRAY 22 |
| #define DUK_HOBJECT_CLASS_UINT8CLAMPEDARRAY 23 |
| #define DUK_HOBJECT_CLASS_INT16ARRAY 24 |
| #define DUK_HOBJECT_CLASS_UINT16ARRAY 25 |
| #define DUK_HOBJECT_CLASS_INT32ARRAY 26 |
| #define DUK_HOBJECT_CLASS_UINT32ARRAY 27 |
| #define DUK_HOBJECT_CLASS_FLOAT32ARRAY 28 |
| #define DUK_HOBJECT_CLASS_FLOAT64ARRAY 29 |
| #define DUK_HOBJECT_CLASS_MAX 29 |
| |
| /* class masks */ |
| #define DUK_HOBJECT_CMASK_ALL ((1UL << (DUK_HOBJECT_CLASS_MAX + 1)) - 1UL) |
| #define DUK_HOBJECT_CMASK_UNUSED (1UL << DUK_HOBJECT_CLASS_UNUSED) |
| #define DUK_HOBJECT_CMASK_ARGUMENTS (1UL << DUK_HOBJECT_CLASS_ARGUMENTS) |
| #define DUK_HOBJECT_CMASK_ARRAY (1UL << DUK_HOBJECT_CLASS_ARRAY) |
| #define DUK_HOBJECT_CMASK_BOOLEAN (1UL << DUK_HOBJECT_CLASS_BOOLEAN) |
| #define DUK_HOBJECT_CMASK_DATE (1UL << DUK_HOBJECT_CLASS_DATE) |
| #define DUK_HOBJECT_CMASK_ERROR (1UL << DUK_HOBJECT_CLASS_ERROR) |
| #define DUK_HOBJECT_CMASK_FUNCTION (1UL << DUK_HOBJECT_CLASS_FUNCTION) |
| #define DUK_HOBJECT_CMASK_JSON (1UL << DUK_HOBJECT_CLASS_JSON) |
| #define DUK_HOBJECT_CMASK_MATH (1UL << DUK_HOBJECT_CLASS_MATH) |
| #define DUK_HOBJECT_CMASK_NUMBER (1UL << DUK_HOBJECT_CLASS_NUMBER) |
| #define DUK_HOBJECT_CMASK_OBJECT (1UL << DUK_HOBJECT_CLASS_OBJECT) |
| #define DUK_HOBJECT_CMASK_REGEXP (1UL << DUK_HOBJECT_CLASS_REGEXP) |
| #define DUK_HOBJECT_CMASK_STRING (1UL << DUK_HOBJECT_CLASS_STRING) |
| #define DUK_HOBJECT_CMASK_GLOBAL (1UL << DUK_HOBJECT_CLASS_GLOBAL) |
| #define DUK_HOBJECT_CMASK_OBJENV (1UL << DUK_HOBJECT_CLASS_OBJENV) |
| #define DUK_HOBJECT_CMASK_DECENV (1UL << DUK_HOBJECT_CLASS_DECENV) |
| #define DUK_HOBJECT_CMASK_BUFFER (1UL << DUK_HOBJECT_CLASS_BUFFER) |
| #define DUK_HOBJECT_CMASK_POINTER (1UL << DUK_HOBJECT_CLASS_POINTER) |
| #define DUK_HOBJECT_CMASK_THREAD (1UL << DUK_HOBJECT_CLASS_THREAD) |
| #define DUK_HOBJECT_CMASK_ARRAYBUFFER (1UL << DUK_HOBJECT_CLASS_ARRAYBUFFER) |
| #define DUK_HOBJECT_CMASK_DATAVIEW (1UL << DUK_HOBJECT_CLASS_DATAVIEW) |
| #define DUK_HOBJECT_CMASK_INT8ARRAY (1UL << DUK_HOBJECT_CLASS_INT8ARRAY) |
| #define DUK_HOBJECT_CMASK_UINT8ARRAY (1UL << DUK_HOBJECT_CLASS_UINT8ARRAY) |
| #define DUK_HOBJECT_CMASK_UINT8CLAMPEDARRAY (1UL << DUK_HOBJECT_CLASS_UINT8CLAMPEDARRAY) |
| #define DUK_HOBJECT_CMASK_INT16ARRAY (1UL << DUK_HOBJECT_CLASS_INT16ARRAY) |
| #define DUK_HOBJECT_CMASK_UINT16ARRAY (1UL << DUK_HOBJECT_CLASS_UINT16ARRAY) |
| #define DUK_HOBJECT_CMASK_INT32ARRAY (1UL << DUK_HOBJECT_CLASS_INT32ARRAY) |
| #define DUK_HOBJECT_CMASK_UINT32ARRAY (1UL << DUK_HOBJECT_CLASS_UINT32ARRAY) |
| #define DUK_HOBJECT_CMASK_FLOAT32ARRAY (1UL << DUK_HOBJECT_CLASS_FLOAT32ARRAY) |
| #define DUK_HOBJECT_CMASK_FLOAT64ARRAY (1UL << DUK_HOBJECT_CLASS_FLOAT64ARRAY) |
| |
| #define DUK_HOBJECT_CMASK_ALL_BUFFEROBJECTS \ |
| (DUK_HOBJECT_CMASK_BUFFER | \ |
| DUK_HOBJECT_CMASK_ARRAYBUFFER | \ |
| DUK_HOBJECT_CMASK_DATAVIEW | \ |
| DUK_HOBJECT_CMASK_INT8ARRAY | \ |
| DUK_HOBJECT_CMASK_UINT8ARRAY | \ |
| DUK_HOBJECT_CMASK_UINT8CLAMPEDARRAY | \ |
| DUK_HOBJECT_CMASK_INT16ARRAY | \ |
| DUK_HOBJECT_CMASK_UINT16ARRAY | \ |
| DUK_HOBJECT_CMASK_INT32ARRAY | \ |
| DUK_HOBJECT_CMASK_UINT32ARRAY | \ |
| DUK_HOBJECT_CMASK_FLOAT32ARRAY | \ |
| DUK_HOBJECT_CMASK_FLOAT64ARRAY) |
| |
| #define DUK_HOBJECT_IS_OBJENV(h) (DUK_HOBJECT_GET_CLASS_NUMBER((h)) == DUK_HOBJECT_CLASS_OBJENV) |
| #define DUK_HOBJECT_IS_DECENV(h) (DUK_HOBJECT_GET_CLASS_NUMBER((h)) == DUK_HOBJECT_CLASS_DECENV) |
| #define DUK_HOBJECT_IS_ENV(h) (DUK_HOBJECT_IS_OBJENV((h)) || DUK_HOBJECT_IS_DECENV((h))) |
| #define DUK_HOBJECT_IS_ARRAY(h) (DUK_HOBJECT_GET_CLASS_NUMBER((h)) == DUK_HOBJECT_CLASS_ARRAY) |
| #define DUK_HOBJECT_IS_COMPILEDFUNCTION(h) DUK_HEAPHDR_CHECK_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_COMPILEDFUNCTION) |
| #define DUK_HOBJECT_IS_NATIVEFUNCTION(h) DUK_HEAPHDR_CHECK_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_NATIVEFUNCTION) |
| #define DUK_HOBJECT_IS_BUFFEROBJECT(h) DUK_HEAPHDR_CHECK_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_BUFFEROBJECT) |
| #define DUK_HOBJECT_IS_THREAD(h) DUK_HEAPHDR_CHECK_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_THREAD) |
| |
| #define DUK_HOBJECT_IS_NONBOUND_FUNCTION(h) DUK_HEAPHDR_CHECK_FLAG_BITS(&(h)->hdr, \ |
| DUK_HOBJECT_FLAG_COMPILEDFUNCTION | \ |
| DUK_HOBJECT_FLAG_NATIVEFUNCTION) |
| |
| #define DUK_HOBJECT_IS_FUNCTION(h) DUK_HEAPHDR_CHECK_FLAG_BITS(&(h)->hdr, \ |
| DUK_HOBJECT_FLAG_BOUND | \ |
| DUK_HOBJECT_FLAG_COMPILEDFUNCTION | \ |
| DUK_HOBJECT_FLAG_NATIVEFUNCTION) |
| |
| #define DUK_HOBJECT_IS_CALLABLE(h) DUK_HEAPHDR_CHECK_FLAG_BITS(&(h)->hdr, \ |
| DUK_HOBJECT_FLAG_BOUND | \ |
| DUK_HOBJECT_FLAG_COMPILEDFUNCTION | \ |
| DUK_HOBJECT_FLAG_NATIVEFUNCTION) |
| |
| /* object has any exotic behavior(s) */ |
| #define DUK_HOBJECT_EXOTIC_BEHAVIOR_FLAGS (DUK_HOBJECT_FLAG_EXOTIC_ARRAY | \ |
| DUK_HOBJECT_FLAG_EXOTIC_ARGUMENTS | \ |
| DUK_HOBJECT_FLAG_EXOTIC_STRINGOBJ | \ |
| DUK_HOBJECT_FLAG_EXOTIC_DUKFUNC | \ |
| DUK_HOBJECT_FLAG_BUFFEROBJECT | \ |
| DUK_HOBJECT_FLAG_EXOTIC_PROXYOBJ) |
| |
| #define DUK_HOBJECT_HAS_EXOTIC_BEHAVIOR(h) DUK_HEAPHDR_CHECK_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_EXOTIC_BEHAVIOR_FLAGS) |
| |
| #define DUK_HOBJECT_HAS_EXTENSIBLE(h) DUK_HEAPHDR_CHECK_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_EXTENSIBLE) |
| #define DUK_HOBJECT_HAS_CONSTRUCTABLE(h) DUK_HEAPHDR_CHECK_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_CONSTRUCTABLE) |
| #define DUK_HOBJECT_HAS_BOUND(h) DUK_HEAPHDR_CHECK_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_BOUND) |
| #define DUK_HOBJECT_HAS_COMPILEDFUNCTION(h) DUK_HEAPHDR_CHECK_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_COMPILEDFUNCTION) |
| #define DUK_HOBJECT_HAS_NATIVEFUNCTION(h) DUK_HEAPHDR_CHECK_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_NATIVEFUNCTION) |
| #define DUK_HOBJECT_HAS_BUFFEROBJECT(h) DUK_HEAPHDR_CHECK_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_BUFFEROBJECT) |
| #define DUK_HOBJECT_HAS_THREAD(h) DUK_HEAPHDR_CHECK_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_THREAD) |
| #define DUK_HOBJECT_HAS_ARRAY_PART(h) DUK_HEAPHDR_CHECK_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_ARRAY_PART) |
| #define DUK_HOBJECT_HAS_STRICT(h) DUK_HEAPHDR_CHECK_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_STRICT) |
| #define DUK_HOBJECT_HAS_NOTAIL(h) DUK_HEAPHDR_CHECK_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_NOTAIL) |
| #define DUK_HOBJECT_HAS_NEWENV(h) DUK_HEAPHDR_CHECK_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_NEWENV) |
| #define DUK_HOBJECT_HAS_NAMEBINDING(h) DUK_HEAPHDR_CHECK_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_NAMEBINDING) |
| #define DUK_HOBJECT_HAS_CREATEARGS(h) DUK_HEAPHDR_CHECK_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_CREATEARGS) |
| #define DUK_HOBJECT_HAS_ENVRECCLOSED(h) DUK_HEAPHDR_CHECK_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_ENVRECCLOSED) |
| #define DUK_HOBJECT_HAS_EXOTIC_ARRAY(h) DUK_HEAPHDR_CHECK_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_EXOTIC_ARRAY) |
| #define DUK_HOBJECT_HAS_EXOTIC_STRINGOBJ(h) DUK_HEAPHDR_CHECK_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_EXOTIC_STRINGOBJ) |
| #define DUK_HOBJECT_HAS_EXOTIC_ARGUMENTS(h) DUK_HEAPHDR_CHECK_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_EXOTIC_ARGUMENTS) |
| #define DUK_HOBJECT_HAS_EXOTIC_DUKFUNC(h) DUK_HEAPHDR_CHECK_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_EXOTIC_DUKFUNC) |
| #define DUK_HOBJECT_HAS_EXOTIC_PROXYOBJ(h) DUK_HEAPHDR_CHECK_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_EXOTIC_PROXYOBJ) |
| |
| #define DUK_HOBJECT_SET_EXTENSIBLE(h) DUK_HEAPHDR_SET_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_EXTENSIBLE) |
| #define DUK_HOBJECT_SET_CONSTRUCTABLE(h) DUK_HEAPHDR_SET_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_CONSTRUCTABLE) |
| #define DUK_HOBJECT_SET_BOUND(h) DUK_HEAPHDR_SET_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_BOUND) |
| #define DUK_HOBJECT_SET_COMPILEDFUNCTION(h) DUK_HEAPHDR_SET_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_COMPILEDFUNCTION) |
| #define DUK_HOBJECT_SET_NATIVEFUNCTION(h) DUK_HEAPHDR_SET_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_NATIVEFUNCTION) |
| #define DUK_HOBJECT_SET_BUFFEROBJECT(h) DUK_HEAPHDR_SET_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_BUFFEROBJECT) |
| #define DUK_HOBJECT_SET_THREAD(h) DUK_HEAPHDR_SET_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_THREAD) |
| #define DUK_HOBJECT_SET_ARRAY_PART(h) DUK_HEAPHDR_SET_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_ARRAY_PART) |
| #define DUK_HOBJECT_SET_STRICT(h) DUK_HEAPHDR_SET_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_STRICT) |
| #define DUK_HOBJECT_SET_NOTAIL(h) DUK_HEAPHDR_SET_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_NOTAIL) |
| #define DUK_HOBJECT_SET_NEWENV(h) DUK_HEAPHDR_SET_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_NEWENV) |
| #define DUK_HOBJECT_SET_NAMEBINDING(h) DUK_HEAPHDR_SET_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_NAMEBINDING) |
| #define DUK_HOBJECT_SET_CREATEARGS(h) DUK_HEAPHDR_SET_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_CREATEARGS) |
| #define DUK_HOBJECT_SET_ENVRECCLOSED(h) DUK_HEAPHDR_SET_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_ENVRECCLOSED) |
| #define DUK_HOBJECT_SET_EXOTIC_ARRAY(h) DUK_HEAPHDR_SET_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_EXOTIC_ARRAY) |
| #define DUK_HOBJECT_SET_EXOTIC_STRINGOBJ(h) DUK_HEAPHDR_SET_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_EXOTIC_STRINGOBJ) |
| #define DUK_HOBJECT_SET_EXOTIC_ARGUMENTS(h) DUK_HEAPHDR_SET_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_EXOTIC_ARGUMENTS) |
| #define DUK_HOBJECT_SET_EXOTIC_DUKFUNC(h) DUK_HEAPHDR_SET_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_EXOTIC_DUKFUNC) |
| #define DUK_HOBJECT_SET_EXOTIC_PROXYOBJ(h) DUK_HEAPHDR_SET_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_EXOTIC_PROXYOBJ) |
| |
| #define DUK_HOBJECT_CLEAR_EXTENSIBLE(h) DUK_HEAPHDR_CLEAR_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_EXTENSIBLE) |
| #define DUK_HOBJECT_CLEAR_CONSTRUCTABLE(h) DUK_HEAPHDR_CLEAR_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_CONSTRUCTABLE) |
| #define DUK_HOBJECT_CLEAR_BOUND(h) DUK_HEAPHDR_CLEAR_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_BOUND) |
| #define DUK_HOBJECT_CLEAR_COMPILEDFUNCTION(h) DUK_HEAPHDR_CLEAR_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_COMPILEDFUNCTION) |
| #define DUK_HOBJECT_CLEAR_NATIVEFUNCTION(h) DUK_HEAPHDR_CLEAR_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_NATIVEFUNCTION) |
| #define DUK_HOBJECT_CLEAR_BUFFEROBJECT(h) DUK_HEAPHDR_CLEAR_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_BUFFEROBJECT) |
| #define DUK_HOBJECT_CLEAR_THREAD(h) DUK_HEAPHDR_CLEAR_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_THREAD) |
| #define DUK_HOBJECT_CLEAR_ARRAY_PART(h) DUK_HEAPHDR_CLEAR_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_ARRAY_PART) |
| #define DUK_HOBJECT_CLEAR_STRICT(h) DUK_HEAPHDR_CLEAR_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_STRICT) |
| #define DUK_HOBJECT_CLEAR_NOTAIL(h) DUK_HEAPHDR_CLEAR_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_NOTAIL) |
| #define DUK_HOBJECT_CLEAR_NEWENV(h) DUK_HEAPHDR_CLEAR_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_NEWENV) |
| #define DUK_HOBJECT_CLEAR_NAMEBINDING(h) DUK_HEAPHDR_CLEAR_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_NAMEBINDING) |
| #define DUK_HOBJECT_CLEAR_CREATEARGS(h) DUK_HEAPHDR_CLEAR_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_CREATEARGS) |
| #define DUK_HOBJECT_CLEAR_ENVRECCLOSED(h) DUK_HEAPHDR_CLEAR_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_ENVRECCLOSED) |
| #define DUK_HOBJECT_CLEAR_EXOTIC_ARRAY(h) DUK_HEAPHDR_CLEAR_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_EXOTIC_ARRAY) |
| #define DUK_HOBJECT_CLEAR_EXOTIC_STRINGOBJ(h) DUK_HEAPHDR_CLEAR_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_EXOTIC_STRINGOBJ) |
| #define DUK_HOBJECT_CLEAR_EXOTIC_ARGUMENTS(h) DUK_HEAPHDR_CLEAR_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_EXOTIC_ARGUMENTS) |
| #define DUK_HOBJECT_CLEAR_EXOTIC_DUKFUNC(h) DUK_HEAPHDR_CLEAR_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_EXOTIC_DUKFUNC) |
| #define DUK_HOBJECT_CLEAR_EXOTIC_PROXYOBJ(h) DUK_HEAPHDR_CLEAR_FLAG_BITS(&(h)->hdr, DUK_HOBJECT_FLAG_EXOTIC_PROXYOBJ) |
| |
| /* flags used for property attributes in duk_propdesc and packed flags */ |
| #define DUK_PROPDESC_FLAG_WRITABLE (1 << 0) /* E5 Section 8.6.1 */ |
| #define DUK_PROPDESC_FLAG_ENUMERABLE (1 << 1) /* E5 Section 8.6.1 */ |
| #define DUK_PROPDESC_FLAG_CONFIGURABLE (1 << 2) /* E5 Section 8.6.1 */ |
| #define DUK_PROPDESC_FLAG_ACCESSOR (1 << 3) /* accessor */ |
| #define DUK_PROPDESC_FLAG_VIRTUAL (1 << 4) /* property is virtual: used in duk_propdesc, never stored |
| * (used by e.g. buffer virtual properties) |
| */ |
| #define DUK_PROPDESC_FLAGS_MASK (DUK_PROPDESC_FLAG_WRITABLE | \ |
| DUK_PROPDESC_FLAG_ENUMERABLE | \ |
| DUK_PROPDESC_FLAG_CONFIGURABLE | \ |
| DUK_PROPDESC_FLAG_ACCESSOR) |
| |
| /* additional flags which are passed in the same flags argument as property |
| * flags but are not stored in object properties. |
| */ |
| #define DUK_PROPDESC_FLAG_NO_OVERWRITE (1 << 4) /* internal define property: skip write silently if exists */ |
| |
| /* convenience */ |
| #define DUK_PROPDESC_FLAGS_NONE 0 |
| #define DUK_PROPDESC_FLAGS_W (DUK_PROPDESC_FLAG_WRITABLE) |
| #define DUK_PROPDESC_FLAGS_E (DUK_PROPDESC_FLAG_ENUMERABLE) |
| #define DUK_PROPDESC_FLAGS_C (DUK_PROPDESC_FLAG_CONFIGURABLE) |
| #define DUK_PROPDESC_FLAGS_WE (DUK_PROPDESC_FLAG_WRITABLE | DUK_PROPDESC_FLAG_ENUMERABLE) |
| #define DUK_PROPDESC_FLAGS_WC (DUK_PROPDESC_FLAG_WRITABLE | DUK_PROPDESC_FLAG_CONFIGURABLE) |
| #define DUK_PROPDESC_FLAGS_EC (DUK_PROPDESC_FLAG_ENUMERABLE | DUK_PROPDESC_FLAG_CONFIGURABLE) |
| #define DUK_PROPDESC_FLAGS_WEC (DUK_PROPDESC_FLAG_WRITABLE | \ |
| DUK_PROPDESC_FLAG_ENUMERABLE | \ |
| DUK_PROPDESC_FLAG_CONFIGURABLE) |
| |
| /* flags for duk_hobject_get_own_propdesc() and variants */ |
| #define DUK_GETDESC_FLAG_PUSH_VALUE (1 << 0) /* push value to stack */ |
| #define DUK_GETDESC_FLAG_IGNORE_PROTOLOOP (1 << 1) /* don't throw for prototype loop */ |
| |
| /* |
| * Macro for object validity check |
| * |
| * Assert for currently guaranteed relations between flags, for instance. |
| */ |
| |
| #define DUK_ASSERT_HOBJECT_VALID(h) do { \ |
| DUK_ASSERT((h) != NULL); \ |
| DUK_ASSERT(!DUK_HOBJECT_IS_CALLABLE((h)) || \ |
| DUK_HOBJECT_GET_CLASS_NUMBER((h)) == DUK_HOBJECT_CLASS_FUNCTION); \ |
| DUK_ASSERT(!DUK_HOBJECT_IS_BUFFEROBJECT((h)) || \ |
| (DUK_HOBJECT_GET_CLASS_NUMBER((h)) == DUK_HOBJECT_CLASS_BUFFER || \ |
| DUK_HOBJECT_GET_CLASS_NUMBER((h)) == DUK_HOBJECT_CLASS_ARRAYBUFFER || \ |
| DUK_HOBJECT_GET_CLASS_NUMBER((h)) == DUK_HOBJECT_CLASS_DATAVIEW || \ |
| DUK_HOBJECT_GET_CLASS_NUMBER((h)) == DUK_HOBJECT_CLASS_INT8ARRAY || \ |
| DUK_HOBJECT_GET_CLASS_NUMBER((h)) == DUK_HOBJECT_CLASS_UINT8ARRAY || \ |
| DUK_HOBJECT_GET_CLASS_NUMBER((h)) == DUK_HOBJECT_CLASS_UINT8CLAMPEDARRAY || \ |
| DUK_HOBJECT_GET_CLASS_NUMBER((h)) == DUK_HOBJECT_CLASS_INT16ARRAY || \ |
| DUK_HOBJECT_GET_CLASS_NUMBER((h)) == DUK_HOBJECT_CLASS_UINT16ARRAY || \ |
| DUK_HOBJECT_GET_CLASS_NUMBER((h)) == DUK_HOBJECT_CLASS_INT32ARRAY || \ |
| DUK_HOBJECT_GET_CLASS_NUMBER((h)) == DUK_HOBJECT_CLASS_UINT32ARRAY || \ |
| DUK_HOBJECT_GET_CLASS_NUMBER((h)) == DUK_HOBJECT_CLASS_FLOAT32ARRAY || \ |
| DUK_HOBJECT_GET_CLASS_NUMBER((h)) == DUK_HOBJECT_CLASS_FLOAT64ARRAY)); \ |
| } while (0) |
| |
| /* |
| * Macros to access the 'props' allocation. |
| */ |
| |
| #if defined(DUK_USE_HEAPPTR16) |
| #define DUK_HOBJECT_GET_PROPS(heap,h) \ |
| ((duk_uint8_t *) DUK_USE_HEAPPTR_DEC16((heap)->heap_udata, ((duk_heaphdr *) (h))->h_extra16)) |
| #define DUK_HOBJECT_SET_PROPS(heap,h,x) do { \ |
| ((duk_heaphdr *) (h))->h_extra16 = DUK_USE_HEAPPTR_ENC16((heap)->heap_udata, (void *) (x)); \ |
| } while (0) |
| #else |
| #define DUK_HOBJECT_GET_PROPS(heap,h) \ |
| ((h)->props) |
| #define DUK_HOBJECT_SET_PROPS(heap,h,x) do { \ |
| (h)->props = (duk_uint8_t *) (x); \ |
| } while (0) |
| #endif |
| |
| #if defined(DUK_USE_HOBJECT_LAYOUT_1) |
| /* LAYOUT 1 */ |
| #define DUK_HOBJECT_E_GET_KEY_BASE(heap,h) \ |
| ((duk_hstring **) (void *) ( \ |
| DUK_HOBJECT_GET_PROPS((heap), (h)) \ |
| )) |
| #define DUK_HOBJECT_E_GET_VALUE_BASE(heap,h) \ |
| ((duk_propvalue *) (void *) ( \ |
| DUK_HOBJECT_GET_PROPS((heap), (h)) + \ |
| DUK_HOBJECT_GET_ESIZE((h)) * sizeof(duk_hstring *) \ |
| )) |
| #define DUK_HOBJECT_E_GET_FLAGS_BASE(heap,h) \ |
| ((duk_uint8_t *) (void *) ( \ |
| DUK_HOBJECT_GET_PROPS((heap), (h)) + DUK_HOBJECT_GET_ESIZE((h)) * (sizeof(duk_hstring *) + sizeof(duk_propvalue)) \ |
| )) |
| #define DUK_HOBJECT_A_GET_BASE(heap,h) \ |
| ((duk_tval *) (void *) ( \ |
| DUK_HOBJECT_GET_PROPS((heap), (h)) + \ |
| DUK_HOBJECT_GET_ESIZE((h)) * (sizeof(duk_hstring *) + sizeof(duk_propvalue) + sizeof(duk_uint8_t)) \ |
| )) |
| #define DUK_HOBJECT_H_GET_BASE(heap,h) \ |
| ((duk_uint32_t *) (void *) ( \ |
| DUK_HOBJECT_GET_PROPS((heap), (h)) + \ |
| DUK_HOBJECT_GET_ESIZE((h)) * (sizeof(duk_hstring *) + sizeof(duk_propvalue) + sizeof(duk_uint8_t)) + \ |
| DUK_HOBJECT_GET_ASIZE((h)) * sizeof(duk_tval) \ |
| )) |
| #define DUK_HOBJECT_P_COMPUTE_SIZE(n_ent,n_arr,n_hash) \ |
| ( \ |
| (n_ent) * (sizeof(duk_hstring *) + sizeof(duk_propvalue) + sizeof(duk_uint8_t)) + \ |
| (n_arr) * sizeof(duk_tval) + \ |
| (n_hash) * sizeof(duk_uint32_t) \ |
| ) |
| #define DUK_HOBJECT_P_SET_REALLOC_PTRS(p_base,set_e_k,set_e_pv,set_e_f,set_a,set_h,n_ent,n_arr,n_hash) do { \ |
| (set_e_k) = (duk_hstring **) (void *) (p_base); \ |
| (set_e_pv) = (duk_propvalue *) (void *) ((set_e_k) + (n_ent)); \ |
| (set_e_f) = (duk_uint8_t *) (void *) ((set_e_pv) + (n_ent)); \ |
| (set_a) = (duk_tval *) (void *) ((set_e_f) + (n_ent)); \ |
| (set_h) = (duk_uint32_t *) (void *) ((set_a) + (n_arr)); \ |
| } while (0) |
| #elif defined(DUK_USE_HOBJECT_LAYOUT_2) |
| /* LAYOUT 2 */ |
| #if (DUK_USE_ALIGN_BY == 4) |
| #define DUK_HOBJECT_E_FLAG_PADDING(e_sz) ((4 - (e_sz)) & 0x03) |
| #elif (DUK_USE_ALIGN_BY == 8) |
| #define DUK_HOBJECT_E_FLAG_PADDING(e_sz) ((8 - (e_sz)) & 0x07) |
| #elif (DUK_USE_ALIGN_BY == 1) |
| #define DUK_HOBJECT_E_FLAG_PADDING(e_sz) 0 |
| #else |
| #error invalid DUK_USE_ALIGN_BY |
| #endif |
| #define DUK_HOBJECT_E_GET_KEY_BASE(heap,h) \ |
| ((duk_hstring **) (void *) ( \ |
| DUK_HOBJECT_GET_PROPS((heap), (h)) + \ |
| DUK_HOBJECT_GET_ESIZE((h)) * sizeof(duk_propvalue) \ |
| )) |
| #define DUK_HOBJECT_E_GET_VALUE_BASE(heap,h) \ |
| ((duk_propvalue *) (void *) ( \ |
| DUK_HOBJECT_GET_PROPS((heap), (h)) \ |
| )) |
| #define DUK_HOBJECT_E_GET_FLAGS_BASE(heap,h) \ |
| ((duk_uint8_t *) (void *) ( \ |
| DUK_HOBJECT_GET_PROPS((heap), (h)) + DUK_HOBJECT_GET_ESIZE((h)) * (sizeof(duk_hstring *) + sizeof(duk_propvalue)) \ |
| )) |
| #define DUK_HOBJECT_A_GET_BASE(heap,h) \ |
| ((duk_tval *) (void *) ( \ |
| DUK_HOBJECT_GET_PROPS((heap), (h)) + \ |
| DUK_HOBJECT_GET_ESIZE((h)) * (sizeof(duk_hstring *) + sizeof(duk_propvalue) + sizeof(duk_uint8_t)) + \ |
| DUK_HOBJECT_E_FLAG_PADDING(DUK_HOBJECT_GET_ESIZE((h))) \ |
| )) |
| #define DUK_HOBJECT_H_GET_BASE(heap,h) \ |
| ((duk_uint32_t *) (void *) ( \ |
| DUK_HOBJECT_GET_PROPS((heap), (h)) + \ |
| DUK_HOBJECT_GET_ESIZE((h)) * (sizeof(duk_hstring *) + sizeof(duk_propvalue) + sizeof(duk_uint8_t)) + \ |
| DUK_HOBJECT_E_FLAG_PADDING(DUK_HOBJECT_GET_ESIZE((h))) + \ |
| DUK_HOBJECT_GET_ASIZE((h)) * sizeof(duk_tval) \ |
| )) |
| #define DUK_HOBJECT_P_COMPUTE_SIZE(n_ent,n_arr,n_hash) \ |
| ( \ |
| (n_ent) * (sizeof(duk_hstring *) + sizeof(duk_propvalue) + sizeof(duk_uint8_t)) + \ |
| DUK_HOBJECT_E_FLAG_PADDING((n_ent)) + \ |
| (n_arr) * sizeof(duk_tval) + \ |
| (n_hash) * sizeof(duk_uint32_t) \ |
| ) |
| #define DUK_HOBJECT_P_SET_REALLOC_PTRS(p_base,set_e_k,set_e_pv,set_e_f,set_a,set_h,n_ent,n_arr,n_hash) do { \ |
| (set_e_pv) = (duk_propvalue *) (void *) (p_base); \ |
| (set_e_k) = (duk_hstring **) (void *) ((set_e_pv) + (n_ent)); \ |
| (set_e_f) = (duk_uint8_t *) (void *) ((set_e_k) + (n_ent)); \ |
| (set_a) = (duk_tval *) (void *) (((duk_uint8_t *) (set_e_f)) + \ |
| sizeof(duk_uint8_t) * (n_ent) + \ |
| DUK_HOBJECT_E_FLAG_PADDING((n_ent))); \ |
| (set_h) = (duk_uint32_t *) (void *) ((set_a) + (n_arr)); \ |
| } while (0) |
| #elif defined(DUK_USE_HOBJECT_LAYOUT_3) |
| /* LAYOUT 3 */ |
| #define DUK_HOBJECT_E_GET_KEY_BASE(heap,h) \ |
| ((duk_hstring **) (void *) ( \ |
| DUK_HOBJECT_GET_PROPS((heap), (h)) + \ |
| DUK_HOBJECT_GET_ESIZE((h)) * sizeof(duk_propvalue) + \ |
| DUK_HOBJECT_GET_ASIZE((h)) * sizeof(duk_tval) \ |
| )) |
| #define DUK_HOBJECT_E_GET_VALUE_BASE(heap,h) \ |
| ((duk_propvalue *) (void *) ( \ |
| DUK_HOBJECT_GET_PROPS((heap), (h)) \ |
| )) |
| #define DUK_HOBJECT_E_GET_FLAGS_BASE(heap,h) \ |
| ((duk_uint8_t *) (void *) ( \ |
| DUK_HOBJECT_GET_PROPS((heap), (h)) + \ |
| DUK_HOBJECT_GET_ESIZE((h)) * (sizeof(duk_propvalue) + sizeof(duk_hstring *)) + \ |
| DUK_HOBJECT_GET_ASIZE((h)) * sizeof(duk_tval) + \ |
| DUK_HOBJECT_GET_HSIZE((h)) * sizeof(duk_uint32_t) \ |
| )) |
| #define DUK_HOBJECT_A_GET_BASE(heap,h) \ |
| ((duk_tval *) (void *) ( \ |
| DUK_HOBJECT_GET_PROPS((heap), (h)) + \ |
| DUK_HOBJECT_GET_ESIZE((h)) * sizeof(duk_propvalue) \ |
| )) |
| #define DUK_HOBJECT_H_GET_BASE(heap,h) \ |
| ((duk_uint32_t *) (void *) ( \ |
| DUK_HOBJECT_GET_PROPS((heap), (h)) + \ |
| DUK_HOBJECT_GET_ESIZE((h)) * (sizeof(duk_propvalue) + sizeof(duk_hstring *)) + \ |
| DUK_HOBJECT_GET_ASIZE((h)) * sizeof(duk_tval) \ |
| )) |
| #define DUK_HOBJECT_P_COMPUTE_SIZE(n_ent,n_arr,n_hash) \ |
| ( \ |
| (n_ent) * (sizeof(duk_propvalue) + sizeof(duk_hstring *) + sizeof(duk_uint8_t)) + \ |
| (n_arr) * sizeof(duk_tval) + \ |
| (n_hash) * sizeof(duk_uint32_t) \ |
| ) |
| #define DUK_HOBJECT_P_SET_REALLOC_PTRS(p_base,set_e_k,set_e_pv,set_e_f,set_a,set_h,n_ent,n_arr,n_hash) do { \ |
| (set_e_pv) = (duk_propvalue *) (void *) (p_base); \ |
| (set_a) = (duk_tval *) (void *) ((set_e_pv) + (n_ent)); \ |
| (set_e_k) = (duk_hstring **) (void *) ((set_a) + (n_arr)); \ |
| (set_h) = (duk_uint32_t *) (void *) ((set_e_k) + (n_ent)); \ |
| (set_e_f) = (duk_uint8_t *) (void *) ((set_h) + (n_hash)); \ |
| } while (0) |
| #else |
| #error invalid hobject layout defines |
| #endif /* hobject property layout */ |
| |
| #define DUK_HOBJECT_P_ALLOC_SIZE(h) \ |
| DUK_HOBJECT_P_COMPUTE_SIZE(DUK_HOBJECT_GET_ESIZE((h)), DUK_HOBJECT_GET_ASIZE((h)), DUK_HOBJECT_GET_HSIZE((h))) |
| |
| #define DUK_HOBJECT_E_GET_KEY(heap,h,i) (DUK_HOBJECT_E_GET_KEY_BASE((heap), (h))[(i)]) |
| #define DUK_HOBJECT_E_GET_KEY_PTR(heap,h,i) (&DUK_HOBJECT_E_GET_KEY_BASE((heap), (h))[(i)]) |
| #define DUK_HOBJECT_E_GET_VALUE(heap,h,i) (DUK_HOBJECT_E_GET_VALUE_BASE((heap), (h))[(i)]) |
| #define DUK_HOBJECT_E_GET_VALUE_PTR(heap,h,i) (&DUK_HOBJECT_E_GET_VALUE_BASE((heap), (h))[(i)]) |
| #define DUK_HOBJECT_E_GET_VALUE_TVAL(heap,h,i) (DUK_HOBJECT_E_GET_VALUE((heap), (h), (i)).v) |
| #define DUK_HOBJECT_E_GET_VALUE_TVAL_PTR(heap,h,i) (&DUK_HOBJECT_E_GET_VALUE((heap), (h), (i)).v) |
| #define DUK_HOBJECT_E_GET_VALUE_GETTER(heap,h,i) (DUK_HOBJECT_E_GET_VALUE((heap), (h), (i)).a.get) |
| #define DUK_HOBJECT_E_GET_VALUE_GETTER_PTR(heap,h,i) (&DUK_HOBJECT_E_GET_VALUE((heap), (h), (i)).a.get) |
| #define DUK_HOBJECT_E_GET_VALUE_SETTER(heap,h,i) (DUK_HOBJECT_E_GET_VALUE((heap), (h), (i)).a.set) |
| #define DUK_HOBJECT_E_GET_VALUE_SETTER_PTR(heap,h,i) (&DUK_HOBJECT_E_GET_VALUE((heap), (h), (i)).a.set) |
| #define DUK_HOBJECT_E_GET_FLAGS(heap,h,i) (DUK_HOBJECT_E_GET_FLAGS_BASE((heap), (h))[(i)]) |
| #define DUK_HOBJECT_E_GET_FLAGS_PTR(heap,h,i) (&DUK_HOBJECT_E_GET_FLAGS_BASE((heap), (h))[(i)]) |
| #define DUK_HOBJECT_A_GET_VALUE(heap,h,i) (DUK_HOBJECT_A_GET_BASE((heap), (h))[(i)]) |
| #define DUK_HOBJECT_A_GET_VALUE_PTR(heap,h,i) (&DUK_HOBJECT_A_GET_BASE((heap), (h))[(i)]) |
| #define DUK_HOBJECT_H_GET_INDEX(heap,h,i) (DUK_HOBJECT_H_GET_BASE((heap), (h))[(i)]) |
| #define DUK_HOBJECT_H_GET_INDEX_PTR(heap,h,i) (&DUK_HOBJECT_H_GET_BASE((heap), (h))[(i)]) |
| |
| #define DUK_HOBJECT_E_SET_KEY(heap,h,i,k) do { \ |
| DUK_HOBJECT_E_GET_KEY((heap), (h), (i)) = (k); \ |
| } while (0) |
| #define DUK_HOBJECT_E_SET_VALUE(heap,h,i,v) do { \ |
| DUK_HOBJECT_E_GET_VALUE((heap), (h), (i)) = (v); \ |
| } while (0) |
| #define DUK_HOBJECT_E_SET_VALUE_TVAL(heap,h,i,v) do { \ |
| DUK_HOBJECT_E_GET_VALUE((heap), (h), (i)).v = (v); \ |
| } while (0) |
| #define DUK_HOBJECT_E_SET_VALUE_GETTER(heap,h,i,v) do { \ |
| DUK_HOBJECT_E_GET_VALUE((heap), (h), (i)).a.get = (v); \ |
| } while (0) |
| #define DUK_HOBJECT_E_SET_VALUE_SETTER(heap,h,i,v) do { \ |
| DUK_HOBJECT_E_GET_VALUE((heap), (h), (i)).a.set = (v); \ |
| } while (0) |
| #define DUK_HOBJECT_E_SET_FLAGS(heap,h,i,f) do { \ |
| DUK_HOBJECT_E_GET_FLAGS((heap), (h), (i)) = (duk_uint8_t) (f); \ |
| } while (0) |
| #define DUK_HOBJECT_A_SET_VALUE(heap,h,i,v) do { \ |
| DUK_HOBJECT_A_GET_VALUE((heap), (h), (i)) = (v); \ |
| } while (0) |
| #define DUK_HOBJECT_A_SET_VALUE_TVAL(heap,h,i,v) \ |
| DUK_HOBJECT_A_SET_VALUE((heap), (h), (i), (v)) /* alias for above */ |
| #define DUK_HOBJECT_H_SET_INDEX(heap,h,i,v) do { \ |
| DUK_HOBJECT_H_GET_INDEX((heap), (h), (i)) = (v); \ |
| } while (0) |
| |
| #define DUK_HOBJECT_E_SET_FLAG_BITS(heap,h,i,mask) do { \ |
| DUK_HOBJECT_E_GET_FLAGS_BASE((heap), (h))[(i)] |= (mask); \ |
| } while (0) |
| |
| #define DUK_HOBJECT_E_CLEAR_FLAG_BITS(heap,h,i,mask) do { \ |
| DUK_HOBJECT_E_GET_FLAGS_BASE((heap), (h))[(i)] &= ~(mask); \ |
| } while (0) |
| |
| #define DUK_HOBJECT_E_SLOT_IS_WRITABLE(heap,h,i) ((DUK_HOBJECT_E_GET_FLAGS((heap), (h), (i)) & DUK_PROPDESC_FLAG_WRITABLE) != 0) |
| #define DUK_HOBJECT_E_SLOT_IS_ENUMERABLE(heap,h,i) ((DUK_HOBJECT_E_GET_FLAGS((heap), (h), (i)) & DUK_PROPDESC_FLAG_ENUMERABLE) != 0) |
| #define DUK_HOBJECT_E_SLOT_IS_CONFIGURABLE(heap,h,i) ((DUK_HOBJECT_E_GET_FLAGS((heap), (h), (i)) & DUK_PROPDESC_FLAG_CONFIGURABLE) != 0) |
| #define DUK_HOBJECT_E_SLOT_IS_ACCESSOR(heap,h,i) ((DUK_HOBJECT_E_GET_FLAGS((heap), (h), (i)) & DUK_PROPDESC_FLAG_ACCESSOR) != 0) |
| |
| #define DUK_HOBJECT_E_SLOT_SET_WRITABLE(heap,h,i) DUK_HOBJECT_E_SET_FLAG_BITS((heap), (h), (i),DUK_PROPDESC_FLAG_WRITABLE) |
| #define DUK_HOBJECT_E_SLOT_SET_ENUMERABLE(heap,h,i) DUK_HOBJECT_E_SET_FLAG_BITS((heap), (h), (i),DUK_PROPDESC_FLAG_ENUMERABLE) |
| #define DUK_HOBJECT_E_SLOT_SET_CONFIGURABLE(heap,h,i) DUK_HOBJECT_E_SET_FLAG_BITS((heap), (h), (i),DUK_PROPDESC_FLAG_CONFIGURABLE) |
| #define DUK_HOBJECT_E_SLOT_SET_ACCESSOR(heap,h,i) DUK_HOBJECT_E_SET_FLAG_BITS((heap), (h), (i),DUK_PROPDESC_FLAG_ACCESSOR) |
| |
| #define DUK_HOBJECT_E_SLOT_CLEAR_WRITABLE(heap,h,i) DUK_HOBJECT_E_CLEAR_FLAG_BITS((heap), (h), (i),DUK_PROPDESC_FLAG_WRITABLE) |
| #define DUK_HOBJECT_E_SLOT_CLEAR_ENUMERABLE(heap,h,i) DUK_HOBJECT_E_CLEAR_FLAG_BITS((heap), (h), (i),DUK_PROPDESC_FLAG_ENUMERABLE) |
| #define DUK_HOBJECT_E_SLOT_CLEAR_CONFIGURABLE(heap,h,i) DUK_HOBJECT_E_CLEAR_FLAG_BITS((heap), (h), (i),DUK_PROPDESC_FLAG_CONFIGURABLE) |
| #define DUK_HOBJECT_E_SLOT_CLEAR_ACCESSOR(heap,h,i) DUK_HOBJECT_E_CLEAR_FLAG_BITS((heap), (h), (i),DUK_PROPDESC_FLAG_ACCESSOR) |
| |
| #define DUK_PROPDESC_IS_WRITABLE(p) (((p)->flags & DUK_PROPDESC_FLAG_WRITABLE) != 0) |
| #define DUK_PROPDESC_IS_ENUMERABLE(p) (((p)->flags & DUK_PROPDESC_FLAG_ENUMERABLE) != 0) |
| #define DUK_PROPDESC_IS_CONFIGURABLE(p) (((p)->flags & DUK_PROPDESC_FLAG_CONFIGURABLE) != 0) |
| #define DUK_PROPDESC_IS_ACCESSOR(p) (((p)->flags & DUK_PROPDESC_FLAG_ACCESSOR) != 0) |
| |
| #define DUK_HOBJECT_HASHIDX_UNUSED 0xffffffffUL |
| #define DUK_HOBJECT_HASHIDX_DELETED 0xfffffffeUL |
| |
| /* |
| * Macros for accessing size fields |
| */ |
| |
| #if defined(DUK_USE_OBJSIZES16) |
| #define DUK_HOBJECT_GET_ESIZE(h) ((h)->e_size16) |
| #define DUK_HOBJECT_SET_ESIZE(h,v) do { (h)->e_size16 = (v); } while (0) |
| #define DUK_HOBJECT_GET_ENEXT(h) ((h)->e_next16) |
| #define DUK_HOBJECT_SET_ENEXT(h,v) do { (h)->e_next16 = (v); } while (0) |
| #define DUK_HOBJECT_POSTINC_ENEXT(h) ((h)->e_next16++) |
| #define DUK_HOBJECT_GET_ASIZE(h) ((h)->a_size16) |
| #define DUK_HOBJECT_SET_ASIZE(h,v) do { (h)->a_size16 = (v); } while (0) |
| #if defined(DUK_USE_HOBJECT_HASH_PART) |
| #define DUK_HOBJECT_GET_HSIZE(h) ((h)->h_size16) |
| #define DUK_HOBJECT_SET_HSIZE(h,v) do { (h)->h_size16 = (v); } while (0) |
| #else |
| #define DUK_HOBJECT_GET_HSIZE(h) 0 |
| #define DUK_HOBJECT_SET_HSIZE(h,v) do { DUK_ASSERT((v) == 0); } while (0) |
| #endif |
| #else |
| #define DUK_HOBJECT_GET_ESIZE(h) ((h)->e_size) |
| #define DUK_HOBJECT_SET_ESIZE(h,v) do { (h)->e_size = (v); } while (0) |
| #define DUK_HOBJECT_GET_ENEXT(h) ((h)->e_next) |
| #define DUK_HOBJECT_SET_ENEXT(h,v) do { (h)->e_next = (v); } while (0) |
| #define DUK_HOBJECT_POSTINC_ENEXT(h) ((h)->e_next++) |
| #define DUK_HOBJECT_GET_ASIZE(h) ((h)->a_size) |
| #define DUK_HOBJECT_SET_ASIZE(h,v) do { (h)->a_size = (v); } while (0) |
| #if defined(DUK_USE_HOBJECT_HASH_PART) |
| #define DUK_HOBJECT_GET_HSIZE(h) ((h)->h_size) |
| #define DUK_HOBJECT_SET_HSIZE(h,v) do { (h)->h_size = (v); } while (0) |
| #else |
| #define DUK_HOBJECT_GET_HSIZE(h) 0 |
| #define DUK_HOBJECT_SET_HSIZE(h,v) do { DUK_ASSERT((v) == 0); } while (0) |
| #endif |
| #endif |
| |
| /* |
| * Misc |
| */ |
| |
| /* Maximum prototype traversal depth. Sanity limit which handles e.g. |
| * prototype loops (even complex ones like 1->2->3->4->2->3->4->2->3->4). |
| */ |
| #define DUK_HOBJECT_PROTOTYPE_CHAIN_SANITY 10000L |
| |
| /* Maximum traversal depth for "bound function" chains. */ |
| #define DUK_HOBJECT_BOUND_CHAIN_SANITY 10000L |
| |
| /* |
| * Ecmascript [[Class]] |
| */ |
| |
| /* range check not necessary because all 4-bit values are mapped */ |
| #define DUK_HOBJECT_CLASS_NUMBER_TO_STRIDX(n) duk_class_number_to_stridx[(n)] |
| |
| #define DUK_HOBJECT_GET_CLASS_STRING(heap,h) \ |
| DUK_HEAP_GET_STRING( \ |
| (heap), \ |
| DUK_HOBJECT_CLASS_NUMBER_TO_STRIDX(DUK_HOBJECT_GET_CLASS_NUMBER((h))) \ |
| ) |
| |
| /* |
| * Macros for property handling |
| */ |
| |
| #if defined(DUK_USE_HEAPPTR16) |
| #define DUK_HOBJECT_GET_PROTOTYPE(heap,h) \ |
| ((duk_hobject *) DUK_USE_HEAPPTR_DEC16((heap)->heap_udata, (h)->prototype16)) |
| #define DUK_HOBJECT_SET_PROTOTYPE(heap,h,x) do { \ |
| (h)->prototype16 = DUK_USE_HEAPPTR_ENC16((heap)->heap_udata, (void *) (x)); \ |
| } while (0) |
| #else |
| #define DUK_HOBJECT_GET_PROTOTYPE(heap,h) \ |
| ((h)->prototype) |
| #define DUK_HOBJECT_SET_PROTOTYPE(heap,h,x) do { \ |
| (h)->prototype = (x); \ |
| } while (0) |
| #endif |
| |
| /* note: this updates refcounts */ |
| #define DUK_HOBJECT_SET_PROTOTYPE_UPDREF(thr,h,p) duk_hobject_set_prototype_updref((thr), (h), (p)) |
| |
| /* |
| * Resizing and hash behavior |
| */ |
| |
| /* Sanity limit on max number of properties (allocated, not necessarily used). |
| * This is somewhat arbitrary, but if we're close to 2**32 properties some |
| * algorithms will fail (e.g. hash size selection, next prime selection). |
| * Also, we use negative array/entry table indices to indicate 'not found', |
| * so anything above 0x80000000 will cause trouble now. |
| */ |
| #if defined(DUK_USE_OBJSIZES16) |
| #define DUK_HOBJECT_MAX_PROPERTIES 0x0000ffffUL |
| #else |
| #define DUK_HOBJECT_MAX_PROPERTIES 0x7fffffffUL /* 2**31-1 ~= 2G properties */ |
| #endif |
| |
| /* higher value conserves memory; also note that linear scan is cache friendly */ |
| #define DUK_HOBJECT_E_USE_HASH_LIMIT 32 |
| |
| /* hash size relative to entries size: for value X, approx. hash_prime(e_size + e_size / X) */ |
| #define DUK_HOBJECT_H_SIZE_DIVISOR 4 /* hash size approx. 1.25 times entries size */ |
| |
| /* if new_size < L * old_size, resize without abandon check; L = 3-bit fixed point, e.g. 9 -> 9/8 = 112.5% */ |
| #define DUK_HOBJECT_A_FAST_RESIZE_LIMIT 9 /* 112.5%, i.e. new size less than 12.5% higher -> fast resize */ |
| |
| /* if density < L, abandon array part, L = 3-bit fixed point, e.g. 2 -> 2/8 = 25% */ |
| /* limit is quite low: one array entry is 8 bytes, one normal entry is 4+1+8+4 = 17 bytes (with hash entry) */ |
| #define DUK_HOBJECT_A_ABANDON_LIMIT 2 /* 25%, i.e. less than 25% used -> abandon */ |
| |
| /* internal align target for props allocation, must be 2*n for some n */ |
| #if (DUK_USE_ALIGN_BY == 4) |
| #define DUK_HOBJECT_ALIGN_TARGET 4 |
| #elif (DUK_USE_ALIGN_BY == 8) |
| #define DUK_HOBJECT_ALIGN_TARGET 8 |
| #elif (DUK_USE_ALIGN_BY == 1) |
| #define DUK_HOBJECT_ALIGN_TARGET 1 |
| #else |
| #error invalid DUK_USE_ALIGN_BY |
| #endif |
| |
| /* controls for minimum entry part growth */ |
| #define DUK_HOBJECT_E_MIN_GROW_ADD 16 |
| #define DUK_HOBJECT_E_MIN_GROW_DIVISOR 8 /* 2^3 -> 1/8 = 12.5% min growth */ |
| |
| /* controls for minimum array part growth */ |
| #define DUK_HOBJECT_A_MIN_GROW_ADD 16 |
| #define DUK_HOBJECT_A_MIN_GROW_DIVISOR 8 /* 2^3 -> 1/8 = 12.5% min growth */ |
| |
| /* probe sequence */ |
| #define DUK_HOBJECT_HASH_INITIAL(hash,h_size) ((hash) % (h_size)) |
| #define DUK_HOBJECT_HASH_PROBE_STEP(hash) DUK_UTIL_GET_HASH_PROBE_STEP((hash)) |
| |
| /* |
| * PC-to-line constants |
| */ |
| |
| #define DUK_PC2LINE_SKIP 64 |
| |
| /* maximum length for a SKIP-1 diffstream: 35 bits per entry, rounded up to bytes */ |
| #define DUK_PC2LINE_MAX_DIFF_LENGTH (((DUK_PC2LINE_SKIP - 1) * 35 + 7) / 8) |
| |
| /* |
| * Struct defs |
| */ |
| |
| struct duk_propaccessor { |
| duk_hobject *get; |
| duk_hobject *set; |
| }; |
| |
| union duk_propvalue { |
| /* The get/set pointers could be 16-bit pointer compressed but it |
| * would make no difference on 32-bit platforms because duk_tval is |
| * 8 bytes or more anyway. |
| */ |
| duk_tval v; |
| duk_propaccessor a; |
| }; |
| |
| struct duk_propdesc { |
| /* read-only values 'lifted' for ease of use */ |
| duk_small_int_t flags; |
| duk_hobject *get; |
| duk_hobject *set; |
| |
| /* for updating (all are set to < 0 for virtual properties) */ |
| duk_int_t e_idx; /* prop index in 'entry part', < 0 if not there */ |
| duk_int_t h_idx; /* prop index in 'hash part', < 0 if not there */ |
| duk_int_t a_idx; /* prop index in 'array part', < 0 if not there */ |
| }; |
| |
| struct duk_hobject { |
| duk_heaphdr hdr; |
| |
| /* |
| * 'props' contains {key,value,flags} entries, optional array entries, and |
| * an optional hash lookup table for non-array entries in a single 'sliced' |
| * allocation. There are several layout options, which differ slightly in |
| * generated code size/speed and alignment/padding; duk_features.h selects |
| * the layout used. |
| * |
| * Layout 1 (DUK_USE_HOBJECT_LAYOUT_1): |
| * |
| * e_size * sizeof(duk_hstring *) bytes of entry keys (e_next gc reachable) |
| * e_size * sizeof(duk_propvalue) bytes of entry values (e_next gc reachable) |
| * e_size * sizeof(duk_uint8_t) bytes of entry flags (e_next gc reachable) |
| * a_size * sizeof(duk_tval) bytes of (opt) array values (plain only) (all gc reachable) |
| * h_size * sizeof(duk_uint32_t) bytes of (opt) hash indexes to entries (e_size), |
| * 0xffffffffUL = unused, 0xfffffffeUL = deleted |
| * |
| * Layout 2 (DUK_USE_HOBJECT_LAYOUT_2): |
| * |
| * e_size * sizeof(duk_propvalue) bytes of entry values (e_next gc reachable) |
| * e_size * sizeof(duk_hstring *) bytes of entry keys (e_next gc reachable) |
| * e_size * sizeof(duk_uint8_t) + pad bytes of entry flags (e_next gc reachable) |
| * a_size * sizeof(duk_tval) bytes of (opt) array values (plain only) (all gc reachable) |
| * h_size * sizeof(duk_uint32_t) bytes of (opt) hash indexes to entries (e_size), |
| * 0xffffffffUL = unused, 0xfffffffeUL = deleted |
| * |
| * Layout 3 (DUK_USE_HOBJECT_LAYOUT_3): |
| * |
| * e_size * sizeof(duk_propvalue) bytes of entry values (e_next gc reachable) |
| * a_size * sizeof(duk_tval) bytes of (opt) array values (plain only) (all gc reachable) |
| * e_size * sizeof(duk_hstring *) bytes of entry keys (e_next gc reachable) |
| * h_size * sizeof(duk_uint32_t) bytes of (opt) hash indexes to entries (e_size), |
| * 0xffffffffUL = unused, 0xfffffffeUL = deleted |
| * e_size * sizeof(duk_uint8_t) bytes of entry flags (e_next gc reachable) |
| * |
| * In layout 1, the 'e_next' count is rounded to 4 or 8 on platforms |
| * requiring 4 or 8 byte alignment. This ensures proper alignment |
| * for the entries, at the cost of memory footprint. However, it's |
| * probably preferable to use another layout on such platforms instead. |
| * |
| * In layout 2, the key and value parts are swapped to avoid padding |
| * the key array on platforms requiring alignment by 8. The flags part |
| * is padded to get alignment for array entries. The 'e_next' count does |
| * not need to be rounded as in layout 1. |
| * |
| * In layout 3, entry values and array values are always aligned properly, |
| * and assuming pointers are at most 8 bytes, so are the entry keys. Hash |
| * indices will be properly aligned (assuming pointers are at least 4 bytes). |
| * Finally, flags don't need additional alignment. This layout provides |
| * compact allocations without padding (even on platforms with alignment |
| * requirements) at the cost of a bit slower lookups. |
| * |
| * Objects with few keys don't have a hash index; keys are looked up linearly, |
| * which is cache efficient because the keys are consecutive. Larger objects |
| * have a hash index part which contains integer indexes to the entries part. |
| * |
| * A single allocation reduces memory allocation overhead but requires more |
| * work when any part needs to be resized. A sliced allocation for entries |
| * makes linear key matching faster on most platforms (more locality) and |
| * skimps on flags size (which would be followed by 3 bytes of padding in |
| * most architectures if entries were placed in a struct). |
| * |
| * 'props' also contains internal properties distinguished with a non-BMP |
| * prefix. Often used properties should be placed early in 'props' whenever |
| * possible to make accessing them as fast a possible. |
| */ |
| |
| #if defined(DUK_USE_HEAPPTR16) |
| /* Located in duk_heaphdr h_extra16. Subclasses of duk_hobject (like |
| * duk_hcompiledfunction) are not free to use h_extra16 for this reason. |
| */ |
| #else |
| duk_uint8_t *props; |
| #endif |
| |
| /* prototype: the only internal property lifted outside 'e' as it is so central */ |
| #if defined(DUK_USE_HEAPPTR16) |
| duk_uint16_t prototype16; |
| #else |
| duk_hobject *prototype; |
| #endif |
| |
| #if defined(DUK_USE_OBJSIZES16) |
| duk_uint16_t e_size16; |
| duk_uint16_t e_next16; |
| duk_uint16_t a_size16; |
| #if defined(DUK_USE_HOBJECT_HASH_PART) |
| duk_uint16_t h_size16; |
| #endif |
| #else |
| duk_uint32_t e_size; /* entry part size */ |
| duk_uint32_t e_next; /* index for next new key ([0,e_next[ are gc reachable) */ |
| duk_uint32_t a_size; /* array part size (entirely gc reachable) */ |
| #if defined(DUK_USE_HOBJECT_HASH_PART) |
| duk_uint32_t h_size; /* hash part size or 0 if unused */ |
| #endif |
| #endif |
| }; |
| |
| /* |
| * Exposed data |
| */ |
| |
| #if !defined(DUK_SINGLE_FILE) |
| DUK_INTERNAL_DECL duk_uint8_t duk_class_number_to_stridx[32]; |
| #endif /* !DUK_SINGLE_FILE */ |
| |
| /* |
| * Prototypes |
| */ |
| |
| /* alloc and init */ |
| DUK_INTERNAL_DECL duk_hobject *duk_hobject_alloc(duk_heap *heap, duk_uint_t hobject_flags); |
| #if 0 /* unused */ |
| DUK_INTERNAL_DECL duk_hobject *duk_hobject_alloc_checked(duk_hthread *thr, duk_uint_t hobject_flags); |
| #endif |
| DUK_INTERNAL_DECL duk_hcompiledfunction *duk_hcompiledfunction_alloc(duk_heap *heap, duk_uint_t hobject_flags); |
| DUK_INTERNAL_DECL duk_hnativefunction *duk_hnativefunction_alloc(duk_heap *heap, duk_uint_t hobject_flags); |
| DUK_INTERNAL duk_hbufferobject *duk_hbufferobject_alloc(duk_heap *heap, duk_uint_t hobject_flags); |
| DUK_INTERNAL_DECL duk_hthread *duk_hthread_alloc(duk_heap *heap, duk_uint_t hobject_flags); |
| |
| /* low-level property functions */ |
| DUK_INTERNAL_DECL void duk_hobject_find_existing_entry(duk_heap *heap, duk_hobject *obj, duk_hstring *key, duk_int_t *e_idx, duk_int_t *h_idx); |
| DUK_INTERNAL_DECL duk_tval *duk_hobject_find_existing_entry_tval_ptr(duk_heap *heap, duk_hobject *obj, duk_hstring *key); |
| DUK_INTERNAL_DECL duk_tval *duk_hobject_find_existing_entry_tval_ptr_and_attrs(duk_heap *heap, duk_hobject *obj, duk_hstring *key, duk_int_t *out_attrs); |
| DUK_INTERNAL_DECL duk_tval *duk_hobject_find_existing_array_entry_tval_ptr(duk_heap *heap, duk_hobject *obj, duk_uarridx_t i); |
| DUK_INTERNAL_DECL duk_bool_t duk_hobject_get_own_propdesc(duk_hthread *thr, duk_hobject *obj, duk_hstring *key, duk_propdesc *out_desc, duk_small_uint_t flags); |
| |
| /* XXX: when optimizing for guaranteed property slots, use a guaranteed |
| * slot for internal value; this call can then access it directly. |
| */ |
| #define duk_hobject_get_internal_value_tval_ptr(heap,obj) \ |
| duk_hobject_find_existing_entry_tval_ptr((heap), (obj), DUK_HEAP_STRING_INT_VALUE((heap))) |
| |
| /* core property functions */ |
| DUK_INTERNAL_DECL duk_bool_t duk_hobject_getprop(duk_hthread *thr, duk_tval *tv_obj, duk_tval *tv_key); |
| DUK_INTERNAL_DECL duk_bool_t duk_hobject_putprop(duk_hthread *thr, duk_tval *tv_obj, duk_tval *tv_key, duk_tval *tv_val, duk_bool_t throw_flag); |
| DUK_INTERNAL_DECL duk_bool_t duk_hobject_delprop(duk_hthread *thr, duk_tval *tv_obj, duk_tval *tv_key, duk_bool_t throw_flag); |
| DUK_INTERNAL_DECL duk_bool_t duk_hobject_hasprop(duk_hthread *thr, duk_tval *tv_obj, duk_tval *tv_key); |
| |
| /* internal property functions */ |
| #define DUK_DELPROP_FLAG_THROW (1 << 0) |
| #define DUK_DELPROP_FLAG_FORCE (1 << 1) |
| DUK_INTERNAL_DECL duk_bool_t duk_hobject_delprop_raw(duk_hthread *thr, duk_hobject *obj, duk_hstring *key, duk_small_uint_t flags); |
| DUK_INTERNAL_DECL duk_bool_t duk_hobject_hasprop_raw(duk_hthread *thr, duk_hobject *obj, duk_hstring *key); |
| DUK_INTERNAL_DECL void duk_hobject_define_property_internal(duk_hthread *thr, duk_hobject *obj, duk_hstring *key, duk_small_uint_t flags); |
| DUK_INTERNAL_DECL void duk_hobject_define_property_internal_arridx(duk_hthread *thr, duk_hobject *obj, duk_uarridx_t arr_idx, duk_small_uint_t flags); |
| DUK_INTERNAL_DECL void duk_hobject_define_accessor_internal(duk_hthread *thr, duk_hobject *obj, duk_hstring *key, duk_hobject *getter, duk_hobject *setter, duk_small_uint_t propflags); |
| DUK_INTERNAL_DECL void duk_hobject_set_length(duk_hthread *thr, duk_hobject *obj, duk_uint32_t length); /* XXX: duk_uarridx_t? */ |
| DUK_INTERNAL_DECL void duk_hobject_set_length_zero(duk_hthread *thr, duk_hobject *obj); |
| DUK_INTERNAL_DECL duk_uint32_t duk_hobject_get_length(duk_hthread *thr, duk_hobject *obj); /* XXX: duk_uarridx_t? */ |
| |
| /* helpers for defineProperty() and defineProperties() */ |
| DUK_INTERNAL_DECL |
| void duk_hobject_prepare_property_descriptor(duk_context *ctx, |
| duk_idx_t idx_in, |
| duk_uint_t *out_defprop_flags, |
| duk_idx_t *out_idx_value, |
| duk_hobject **out_getter, |
| duk_hobject **out_setter); |
| DUK_INTERNAL_DECL |
| void duk_hobject_define_property_helper(duk_context *ctx, |
| duk_uint_t defprop_flags, |
| duk_hobject *obj, |
| duk_hstring *key, |
| duk_idx_t idx_value, |
| duk_hobject *get, |
| duk_hobject *set); |
| |
| /* Object built-in methods */ |
| DUK_INTERNAL_DECL duk_ret_t duk_hobject_object_get_own_property_descriptor(duk_context *ctx); |
| DUK_INTERNAL_DECL void duk_hobject_object_seal_freeze_helper(duk_hthread *thr, duk_hobject *obj, duk_bool_t is_freeze); |
| DUK_INTERNAL_DECL duk_bool_t duk_hobject_object_is_sealed_frozen_helper(duk_hthread *thr, duk_hobject *obj, duk_bool_t is_frozen); |
| DUK_INTERNAL_DECL duk_bool_t duk_hobject_object_ownprop_helper(duk_context *ctx, duk_small_uint_t required_desc_flags); |
| |
| /* internal properties */ |
| DUK_INTERNAL_DECL duk_bool_t duk_hobject_get_internal_value(duk_heap *heap, duk_hobject *obj, duk_tval *tv); |
| DUK_INTERNAL_DECL duk_hstring *duk_hobject_get_internal_value_string(duk_heap *heap, duk_hobject *obj); |
| |
| /* hobject management functions */ |
| DUK_INTERNAL_DECL void duk_hobject_compact_props(duk_hthread *thr, duk_hobject *obj); |
| |
| /* ES6 proxy */ |
| #if defined(DUK_USE_ES6_PROXY) |
| DUK_INTERNAL_DECL duk_bool_t duk_hobject_proxy_check(duk_hthread *thr, duk_hobject *obj, duk_hobject **out_target, duk_hobject **out_handler); |
| DUK_INTERNAL_DECL duk_hobject *duk_hobject_resolve_proxy_target(duk_hthread *thr, duk_hobject *obj); |
| #endif |
| |
| /* enumeration */ |
| DUK_INTERNAL_DECL void duk_hobject_enumerator_create(duk_context *ctx, duk_small_uint_t enum_flags); |
| DUK_INTERNAL_DECL duk_ret_t duk_hobject_get_enumerated_keys(duk_context *ctx, duk_small_uint_t enum_flags); |
| DUK_INTERNAL_DECL duk_bool_t duk_hobject_enumerator_next(duk_context *ctx, duk_bool_t get_value); |
| |
| /* macros */ |
| DUK_INTERNAL_DECL void duk_hobject_set_prototype_updref(duk_hthread *thr, duk_hobject *h, duk_hobject *p); |
| |
| /* finalization */ |
| DUK_INTERNAL_DECL void duk_hobject_run_finalizer(duk_hthread *thr, duk_hobject *obj); |
| |
| /* pc2line */ |
| #if defined(DUK_USE_PC2LINE) |
| DUK_INTERNAL_DECL void duk_hobject_pc2line_pack(duk_hthread *thr, duk_compiler_instr *instrs, duk_uint_fast32_t length); |
| DUK_INTERNAL_DECL duk_uint_fast32_t duk_hobject_pc2line_query(duk_context *ctx, duk_idx_t idx_func, duk_uint_fast32_t pc); |
| #endif |
| |
| /* misc */ |
| DUK_INTERNAL_DECL duk_bool_t duk_hobject_prototype_chain_contains(duk_hthread *thr, duk_hobject *h, duk_hobject *p, duk_bool_t ignore_loop); |
| |
| #endif /* DUK_HOBJECT_H_INCLUDED */ |