/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- * * ***** BEGIN LICENSE BLOCK ***** * Version: MPL 1.1/GPL 2.0/LGPL 2.1 * * The contents of this file are subject to the Mozilla Public License Version * 1.1 (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.mozilla.org/MPL/ * * Software distributed under the License is distributed on an "AS IS" basis, * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License * for the specific language governing rights and limitations under the * License. * * The Original Code is Mozilla Communicator client code, released * March 31, 1998. * * The Initial Developer of the Original Code is * Netscape Communications Corporation. * Portions created by the Initial Developer are Copyright (C) 1998 * the Initial Developer. All Rights Reserved. * * Contributor(s): * * Alternatively, the contents of this file may be used under the terms of * either of the GNU General Public License Version 2 or later (the "GPL"), * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), * in which case the provisions of the GPL or the LGPL are applicable instead * of those above. If you wish to allow use of your version of this file only * under the terms of either the GPL or the LGPL, and not to allow others to * use your version of this file under the terms of the MPL, indicate your * decision by deleting the provisions above and replace them with the notice * and other provisions required by the GPL or the LGPL. If you do not delete * the provisions above, a recipient may use your version of this file under * the terms of any one of the MPL, the GPL or the LGPL. * * ***** END LICENSE BLOCK ***** */ /* * JS atom table. */ #include #include #include "mozilla/RangedPtr.h" #include "jstypes.h" #include "jsstdint.h" #include "jsutil.h" #include "jshash.h" #include "jsprf.h" #include "jsapi.h" #include "jsatom.h" #include "jsbit.h" #include "jscntxt.h" #include "jsgc.h" #include "jsgcmark.h" #include "jslock.h" #include "jsnum.h" #include "jsparse.h" #include "jsstr.h" #include "jsversion.h" #include "jsxml.h" #include "jsstrinlines.h" #include "jsatominlines.h" #include "jsobjinlines.h" #include "vm/String-inl.h" using namespace js; using namespace js::gc; const size_t JSAtomState::commonAtomsOffset = offsetof(JSAtomState, emptyAtom); const size_t JSAtomState::lazyAtomsOffset = offsetof(JSAtomState, lazy); /* * ATOM_HASH assumes that JSHashNumber is 32-bit even on 64-bit systems. */ JS_STATIC_ASSERT(sizeof(JSHashNumber) == 4); JS_STATIC_ASSERT(sizeof(JSAtom *) == JS_BYTES_PER_WORD); const char * js_AtomToPrintableString(JSContext *cx, JSAtom *atom, JSAutoByteString *bytes) { return js_ValueToPrintable(cx, StringValue(atom), bytes); } #define JS_PROTO(name,code,init) const char js_##name##_str[] = #name; #include "jsproto.tbl" #undef JS_PROTO /* * String constants for common atoms defined in JSAtomState starting from * JSAtomState.emptyAtom until JSAtomState.lazy. * * The elements of the array after the first empty string define strings * corresponding to the two boolean literals, false and true, followed by the * JSType enumerators from jspubtd.h starting with "undefined" for JSTYPE_VOID * (which is special-value 2) and continuing as initialized below. The static * asserts check these relations. */ JS_STATIC_ASSERT(JSTYPE_LIMIT == 8); JS_STATIC_ASSERT(JSTYPE_VOID == 0); const char *const js_common_atom_names[] = { "", /* emptyAtom */ js_false_str, /* booleanAtoms[0] */ js_true_str, /* booleanAtoms[1] */ js_undefined_str, /* typeAtoms[JSTYPE_VOID] */ js_object_str, /* typeAtoms[JSTYPE_OBJECT] */ js_function_str, /* typeAtoms[JSTYPE_FUNCTION] */ "string", /* typeAtoms[JSTYPE_STRING] */ "number", /* typeAtoms[JSTYPE_NUMBER] */ "boolean", /* typeAtoms[JSTYPE_BOOLEAN] */ js_null_str, /* typeAtoms[JSTYPE_NULL] */ "xml", /* typeAtoms[JSTYPE_XML] */ js_null_str, /* nullAtom */ #define JS_PROTO(name,code,init) js_##name##_str, #include "jsproto.tbl" #undef JS_PROTO js_anonymous_str, /* anonymousAtom */ js_apply_str, /* applyAtom */ js_arguments_str, /* argumentsAtom */ js_arity_str, /* arityAtom */ js_BYTES_PER_ELEMENT_str, /* BYTES_PER_ELEMENTAtom */ js_call_str, /* callAtom */ js_callee_str, /* calleeAtom */ js_caller_str, /* callerAtom */ js_class_prototype_str, /* classPrototypeAtom */ js_constructor_str, /* constructorAtom */ js_each_str, /* eachAtom */ js_eval_str, /* evalAtom */ js_fileName_str, /* fileNameAtom */ js_get_str, /* getAtom */ js_global_str, /* globalAtom */ js_ignoreCase_str, /* ignoreCaseAtom */ js_index_str, /* indexAtom */ js_input_str, /* inputAtom */ "toISOString", /* toISOStringAtom */ js_iterator_str, /* iteratorAtom */ js_join_str, /* joinAtom */ js_lastIndex_str, /* lastIndexAtom */ js_length_str, /* lengthAtom */ js_lineNumber_str, /* lineNumberAtom */ js_message_str, /* messageAtom */ js_multiline_str, /* multilineAtom */ js_name_str, /* nameAtom */ js_next_str, /* nextAtom */ js_noSuchMethod_str, /* noSuchMethodAtom */ "[object Null]", /* objectNullAtom */ "[object Undefined]", /* objectUndefinedAtom */ js_proto_str, /* protoAtom */ js_set_str, /* setAtom */ js_source_str, /* sourceAtom */ js_stack_str, /* stackAtom */ js_sticky_str, /* stickyAtom */ js_toGMTString_str, /* toGMTStringAtom */ js_toLocaleString_str, /* toLocaleStringAtom */ js_toSource_str, /* toSourceAtom */ js_toString_str, /* toStringAtom */ js_toUTCString_str, /* toUTCStringAtom */ js_valueOf_str, /* valueOfAtom */ js_toJSON_str, /* toJSONAtom */ "(void 0)", /* void0Atom */ js_enumerable_str, /* enumerableAtom */ js_configurable_str, /* configurableAtom */ js_writable_str, /* writableAtom */ js_value_str, /* valueAtom */ js_test_str, /* testAtom */ "use strict", /* useStrictAtom */ "loc", /* locAtom */ "line", /* lineAtom */ "Infinity", /* InfinityAtom */ "NaN", /* NaNAtom */ "builder", /* builderAtom */ #if JS_HAS_XML_SUPPORT js_etago_str, /* etagoAtom */ js_namespace_str, /* namespaceAtom */ js_ptagc_str, /* ptagcAtom */ js_qualifier_str, /* qualifierAtom */ js_space_str, /* spaceAtom */ js_stago_str, /* stagoAtom */ js_star_str, /* starAtom */ js_starQualifier_str, /* starQualifierAtom */ js_tagc_str, /* tagcAtom */ js_xml_str, /* xmlAtom */ "@mozilla.org/js/function", /* functionNamespaceURIAtom */ #endif "Proxy", /* ProxyAtom */ "getOwnPropertyDescriptor", /* getOwnPropertyDescriptorAtom */ "getPropertyDescriptor", /* getPropertyDescriptorAtom */ "defineProperty", /* definePropertyAtom */ "delete", /* deleteAtom */ "getOwnPropertyNames", /* getOwnPropertyNames */ "enumerate", /* enumerateAtom */ "fix", /* fixAtom */ "has", /* hasAtom */ "hasOwn", /* hasOwnAtom */ "keys", /* keysAtom */ "iterate", /* iterateAtom */ "WeakMap", /* WeakMapAtom */ "byteLength", /* byteLengthAtom */ "return", /* returnAtom */ "throw" /* throwAtom */ }; void JSAtomState::checkStaticInvariants() { /* * Start and limit offsets for atom pointers in JSAtomState must be aligned * on the word boundary. */ JS_STATIC_ASSERT(commonAtomsOffset % sizeof(JSAtom *) == 0); JS_STATIC_ASSERT(sizeof(*this) % sizeof(JSAtom *) == 0); /* * JS_BOOLEAN_STR and JS_TYPE_STR assume that boolean names starts from the * index 1 and type name starts from the index 1+2 atoms in JSAtomState. */ JS_STATIC_ASSERT(1 * sizeof(JSAtom *) == offsetof(JSAtomState, booleanAtoms) - commonAtomsOffset); JS_STATIC_ASSERT((1 + 2) * sizeof(JSAtom *) == offsetof(JSAtomState, typeAtoms) - commonAtomsOffset); JS_STATIC_ASSERT(JS_ARRAY_LENGTH(js_common_atom_names) * sizeof(JSAtom *) == lazyAtomsOffset - commonAtomsOffset); } /* * Interpreter macros called by the trace recorder assume common atom indexes * fit in one byte of immediate operand. */ JS_STATIC_ASSERT(JS_ARRAY_LENGTH(js_common_atom_names) < 256); const size_t js_common_atom_count = JS_ARRAY_LENGTH(js_common_atom_names); const char js_anonymous_str[] = "anonymous"; const char js_apply_str[] = "apply"; const char js_arguments_str[] = "arguments"; const char js_arity_str[] = "arity"; const char js_BYTES_PER_ELEMENT_str[] = "BYTES_PER_ELEMENT"; const char js_call_str[] = "call"; const char js_callee_str[] = "callee"; const char js_caller_str[] = "caller"; const char js_class_prototype_str[] = "prototype"; const char js_constructor_str[] = "constructor"; const char js_each_str[] = "each"; const char js_eval_str[] = "eval"; const char js_fileName_str[] = "fileName"; const char js_get_str[] = "get"; const char js_getter_str[] = "getter"; const char js_global_str[] = "global"; const char js_ignoreCase_str[] = "ignoreCase"; const char js_index_str[] = "index"; const char js_input_str[] = "input"; const char js_iterator_str[] = "__iterator__"; const char js_join_str[] = "join"; const char js_lastIndex_str[] = "lastIndex"; const char js_length_str[] = "length"; const char js_lineNumber_str[] = "lineNumber"; const char js_message_str[] = "message"; const char js_multiline_str[] = "multiline"; const char js_name_str[] = "name"; const char js_next_str[] = "next"; const char js_noSuchMethod_str[] = "__noSuchMethod__"; const char js_object_str[] = "object"; const char js_proto_str[] = "__proto__"; const char js_setter_str[] = "setter"; const char js_set_str[] = "set"; const char js_source_str[] = "source"; const char js_stack_str[] = "stack"; const char js_sticky_str[] = "sticky"; const char js_toGMTString_str[] = "toGMTString"; const char js_toLocaleString_str[] = "toLocaleString"; const char js_toSource_str[] = "toSource"; const char js_toString_str[] = "toString"; const char js_toUTCString_str[] = "toUTCString"; const char js_undefined_str[] = "undefined"; const char js_valueOf_str[] = "valueOf"; const char js_toJSON_str[] = "toJSON"; const char js_enumerable_str[] = "enumerable"; const char js_configurable_str[] = "configurable"; const char js_writable_str[] = "writable"; const char js_value_str[] = "value"; const char js_test_str[] = "test"; #if JS_HAS_XML_SUPPORT const char js_etago_str[] = ""; const char js_qualifier_str[] = "::"; const char js_space_str[] = " "; const char js_stago_str[] = "<"; const char js_star_str[] = "*"; const char js_starQualifier_str[] = "*::"; const char js_tagc_str[] = ">"; const char js_xml_str[] = "xml"; #endif #if JS_HAS_GENERATORS const char js_close_str[] = "close"; const char js_send_str[] = "send"; #endif /* * For a browser build from 2007-08-09 after the browser starts up there are * just 55 double atoms, but over 15000 string atoms. Not to penalize more * economical embeddings allocating too much memory initially we initialize * atomized strings with just 1K entries. */ #define JS_STRING_HASH_COUNT 1024 JSBool js_InitAtomState(JSRuntime *rt) { JSAtomState *state = &rt->atomState; JS_ASSERT(!state->atoms.initialized()); if (!state->atoms.init(JS_STRING_HASH_COUNT)) return false; #ifdef JS_THREADSAFE js_InitLock(&state->lock); #endif JS_ASSERT(state->atoms.initialized()); return JS_TRUE; } void js_FinishAtomState(JSRuntime *rt) { JSAtomState *state = &rt->atomState; if (!state->atoms.initialized()) { /* * We are called with uninitialized state when JS_NewRuntime fails and * calls JS_DestroyRuntime on a partially initialized runtime. */ return; } for (AtomSet::Range r = state->atoms.all(); !r.empty(); r.popFront()) r.front().asPtr()->finalize(rt); #ifdef JS_THREADSAFE js_FinishLock(&state->lock); #endif } bool js_InitCommonAtoms(JSContext *cx) { JSAtomState *state = &cx->runtime->atomState; JSAtom **atoms = state->commonAtomsStart(); for (size_t i = 0; i < JS_ARRAY_LENGTH(js_common_atom_names); i++, atoms++) { *atoms = js_Atomize(cx, js_common_atom_names[i], strlen(js_common_atom_names[i]), InternAtom); if (!*atoms) return false; } state->clearLazyAtoms(); cx->runtime->emptyString = state->emptyAtom; return true; } void js_FinishCommonAtoms(JSContext *cx) { cx->runtime->emptyString = NULL; cx->runtime->atomState.junkAtoms(); } void js_TraceAtomState(JSTracer *trc) { JSRuntime *rt = trc->context->runtime; JSAtomState *state = &rt->atomState; #ifdef DEBUG size_t number = 0; #endif if (rt->gcKeepAtoms) { for (AtomSet::Range r = state->atoms.all(); !r.empty(); r.popFront()) { JS_SET_TRACING_INDEX(trc, "locked_atom", number++); MarkString(trc, r.front().asPtr()); } } else { for (AtomSet::Range r = state->atoms.all(); !r.empty(); r.popFront()) { AtomStateEntry entry = r.front(); if (!entry.isTagged()) continue; JS_SET_TRACING_INDEX(trc, "interned_atom", number++); MarkString(trc, entry.asPtr()); } } } void js_SweepAtomState(JSContext *cx) { JSAtomState *state = &cx->runtime->atomState; for (AtomSet::Enum e(state->atoms); !e.empty(); e.popFront()) { AtomStateEntry entry = e.front(); if (entry.isTagged()) { /* Pinned or interned key cannot be finalized. */ JS_ASSERT(!IsAboutToBeFinalized(cx, entry.asPtr())); continue; } if (IsAboutToBeFinalized(cx, entry.asPtr())) e.removeFront(); } } bool AtomIsInterned(JSContext *cx, JSAtom *atom) { /* We treat static strings as interned because they're never collected. */ if (StaticStrings::isStatic(atom)) return true; AutoLockAtomsCompartment lock(cx); AtomSet::Ptr p = cx->runtime->atomState.atoms.lookup(atom); if (!p) return false; return p->isTagged(); } enum OwnCharsBehavior { CopyChars, /* in other words, do not take ownership */ TakeCharOwnership }; /* * Callers passing OwnChars have freshly allocated *pchars and thus this * memory can be used as a new JSAtom's buffer without copying. When this flag * is set, the contract is that callers will free *pchars iff *pchars == NULL. */ JS_ALWAYS_INLINE static JSAtom * AtomizeInline(JSContext *cx, const jschar **pchars, size_t length, InternBehavior ib, OwnCharsBehavior ocb = CopyChars) { const jschar *chars = *pchars; if (JSAtom *s = cx->runtime->staticStrings.lookup(chars, length)) return s; AutoLockAtomsCompartment lock(cx); AtomSet &atoms = cx->runtime->atomState.atoms; AtomSet::AddPtr p = atoms.lookupForAdd(AtomHasher::Lookup(chars, length)); if (p) { JSAtom *atom = p->asPtr(); p->setTagged(bool(ib)); return atom; } SwitchToCompartment sc(cx, cx->runtime->atomsCompartment); JSFixedString *key; if (ocb == TakeCharOwnership) { key = js_NewString(cx, const_cast(chars), length); if (!key) return NULL; *pchars = NULL; /* Called should not free *pchars. */ } else { JS_ASSERT(ocb == CopyChars); key = js_NewStringCopyN(cx, chars, length); if (!key) return NULL; } /* * We have to relookup the key as the last ditch GC invoked from the * string allocation or OOM handling may unlock the atomsCompartment. * * N.B. this avoids recomputing the hash but still has a potential * (# collisions * # chars) comparison cost in the case of a hash * collision! */ AtomHasher::Lookup lookup(chars, length); if (!atoms.relookupOrAdd(p, lookup, AtomStateEntry((JSAtom *) key, bool(ib)))) { JS_ReportOutOfMemory(cx); /* SystemAllocPolicy does not report */ return NULL; } return key->morphAtomizedStringIntoAtom(); } static JSAtom * Atomize(JSContext *cx, const jschar **pchars, size_t length, InternBehavior ib, OwnCharsBehavior ocb = CopyChars) { return AtomizeInline(cx, pchars, length, ib, ocb); } JSAtom * js_AtomizeString(JSContext *cx, JSString *str, InternBehavior ib) { if (str->isAtom()) { JSAtom &atom = str->asAtom(); /* N.B. static atoms are effectively always interned. */ if (ib != InternAtom || js::StaticStrings::isStatic(&atom)) return &atom; /* Here we have to check whether the atom is already interned. */ AutoLockAtomsCompartment lock(cx); AtomSet &atoms = cx->runtime->atomState.atoms; AtomSet::Ptr p = atoms.lookup(AtomHasher::Lookup(&atom)); JS_ASSERT(p); /* Non-static atom must exist in atom state set. */ JS_ASSERT(p->asPtr() == &atom); JS_ASSERT(ib == InternAtom); p->setTagged(bool(ib)); return &atom; } if (str->isAtom()) return &str->asAtom(); size_t length = str->length(); const jschar *chars = str->getChars(cx); if (!chars) return NULL; JS_ASSERT(length <= JSString::MAX_LENGTH); return Atomize(cx, &chars, length, ib); } JSAtom * js_Atomize(JSContext *cx, const char *bytes, size_t length, InternBehavior ib, FlationCoding fc) { CHECK_REQUEST(cx); if (!CheckStringLength(cx, length)) return NULL; /* * Avoiding the malloc in InflateString on shorter strings saves us * over 20,000 malloc calls on mozilla browser startup. This compares to * only 131 calls where the string is longer than a 31 char (net) buffer. * The vast majority of atomized strings are already in the hashtable. So * js_AtomizeString rarely has to copy the temp string we make. */ static const unsigned ATOMIZE_BUF_MAX = 32; jschar inflated[ATOMIZE_BUF_MAX]; size_t inflatedLength = ATOMIZE_BUF_MAX - 1; const jschar *chars; OwnCharsBehavior ocb = CopyChars; if (length < ATOMIZE_BUF_MAX) { if (fc == CESU8Encoding) InflateUTF8StringToBuffer(cx, bytes, length, inflated, &inflatedLength, fc); else InflateStringToBuffer(cx, bytes, length, inflated, &inflatedLength); inflated[inflatedLength] = 0; chars = inflated; } else { inflatedLength = length; chars = InflateString(cx, bytes, &inflatedLength, fc); if (!chars) return NULL; ocb = TakeCharOwnership; } JSAtom *atom = Atomize(cx, &chars, inflatedLength, ib, ocb); if (ocb == TakeCharOwnership && chars) cx->free_((void *)chars); return atom; } JSAtom * js_AtomizeChars(JSContext *cx, const jschar *chars, size_t length, InternBehavior ib) { CHECK_REQUEST(cx); if (!CheckStringLength(cx, length)) return NULL; return AtomizeInline(cx, &chars, length, ib); } JSAtom * js_GetExistingStringAtom(JSContext *cx, const jschar *chars, size_t length) { if (JSAtom *atom = cx->runtime->staticStrings.lookup(chars, length)) return atom; AutoLockAtomsCompartment lock(cx); AtomSet::Ptr p = cx->runtime->atomState.atoms.lookup(AtomHasher::Lookup(chars, length)); return p ? p->asPtr() : NULL; } #ifdef DEBUG JS_FRIEND_API(void) js_DumpAtoms(JSContext *cx, FILE *fp) { JSAtomState *state = &cx->runtime->atomState; fprintf(fp, "atoms table contents:\n"); unsigned number = 0; for (AtomSet::Range r = state->atoms.all(); !r.empty(); r.popFront()) { AtomStateEntry entry = r.front(); fprintf(fp, "%3u ", number++); JSAtom *key = entry.asPtr(); FileEscapedString(fp, key, '"'); if (entry.isTagged()) fputs(" interned", fp); putc('\n', fp); } putc('\n', fp); } #endif #if JS_BITS_PER_WORD == 32 # define TEMP_SIZE_START_LOG2 5 #else # define TEMP_SIZE_START_LOG2 6 #endif #define TEMP_SIZE_LIMIT_LOG2 (TEMP_SIZE_START_LOG2 + NUM_TEMP_FREELISTS) #define TEMP_SIZE_START JS_BIT(TEMP_SIZE_START_LOG2) #define TEMP_SIZE_LIMIT JS_BIT(TEMP_SIZE_LIMIT_LOG2) JS_STATIC_ASSERT(TEMP_SIZE_START >= sizeof(JSHashTable)); void js_InitAtomMap(JSContext *cx, AtomIndexMap *indices, JSAtom **atoms) { if (indices->isMap()) { typedef AtomIndexMap::WordMap WordMap; const WordMap &wm = indices->asMap(); for (WordMap::Range r = wm.all(); !r.empty(); r.popFront()) { JSAtom *atom = r.front().key; jsatomid index = r.front().value; JS_ASSERT(index < indices->count()); atoms[index] = atom; } } else { for (const AtomIndexMap::InlineElem *it = indices->asInline(), *end = indices->inlineEnd(); it != end; ++it) { JSAtom *atom = it->key; if (!atom) continue; JS_ASSERT(it->value < indices->count()); atoms[it->value] = atom; } } } namespace js { bool IndexToIdSlow(JSContext *cx, uint32 index, jsid *idp) { JS_ASSERT(index > JSID_INT_MAX); jschar buf[UINT32_CHAR_BUFFER_LENGTH]; RangedPtr end(buf + JS_ARRAY_LENGTH(buf), buf, buf + JS_ARRAY_LENGTH(buf)); RangedPtr start = BackfillIndexInCharBuffer(index, end); JSAtom *atom = js_AtomizeChars(cx, start.get(), end - start); if (!atom) return false; *idp = ATOM_TO_JSID(atom); JS_ASSERT(js_CheckForStringIndex(*idp) == *idp); return true; } } /* namespace js */ /* JSBOXEDWORD_INT_MAX as a string */ #define JSBOXEDWORD_INT_MAX_STRING "1073741823" /* * Convert string indexes that convert to int jsvals as ints to save memory. * Care must be taken to use this macro every time a property name is used, or * else double-sets, incorrect property cache misses, or other mistakes could * occur. */ jsid js_CheckForStringIndex(jsid id) { if (!JSID_IS_ATOM(id)) return id; JSAtom *atom = JSID_TO_ATOM(id); const jschar *s = atom->chars(); jschar ch = *s; JSBool negative = (ch == '-'); if (negative) ch = *++s; if (!JS7_ISDEC(ch)) return id; size_t n = atom->length() - negative; if (n > sizeof(JSBOXEDWORD_INT_MAX_STRING) - 1) return id; const jschar *cp = s; const jschar *end = s + n; jsuint index = JS7_UNDEC(*cp++); jsuint oldIndex = 0; jsuint c = 0; if (index != 0) { while (JS7_ISDEC(*cp)) { oldIndex = index; c = JS7_UNDEC(*cp); index = 10 * index + c; cp++; } } /* * Non-integer indexes can't be represented as integers. Also, distinguish * index "-0" from "0", because JSBOXEDWORD_INT cannot. */ if (cp != end || (negative && index == 0)) return id; if (negative) { if (oldIndex < -(JSID_INT_MIN / 10) || (oldIndex == -(JSID_INT_MIN / 10) && c <= (-JSID_INT_MIN % 10))) { id = INT_TO_JSID(-jsint(index)); } } else { if (oldIndex < JSID_INT_MAX / 10 || (oldIndex == JSID_INT_MAX / 10 && c <= (JSID_INT_MAX % 10))) { id = INT_TO_JSID(jsint(index)); } } return id; } #if JS_HAS_XML_SUPPORT bool js_InternNonIntElementIdSlow(JSContext *cx, JSObject *obj, const Value &idval, jsid *idp) { JS_ASSERT(idval.isObject()); if (obj->isXML()) { *idp = OBJECT_TO_JSID(&idval.toObject()); return true; } if (js_GetLocalNameFromFunctionQName(&idval.toObject(), idp, cx)) return true; return js_ValueToStringId(cx, idval, idp); } bool js_InternNonIntElementIdSlow(JSContext *cx, JSObject *obj, const Value &idval, jsid *idp, Value *vp) { JS_ASSERT(idval.isObject()); if (obj->isXML()) { JSObject &idobj = idval.toObject(); *idp = OBJECT_TO_JSID(&idobj); vp->setObject(idobj); return true; } if (js_GetLocalNameFromFunctionQName(&idval.toObject(), idp, cx)) { *vp = IdToValue(*idp); return true; } if (js_ValueToStringId(cx, idval, idp)) { vp->setString(JSID_TO_STRING(*idp)); return true; } return false; } #endif