C++ (Cpp) createIdentifierTableの例

コード例 #1

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ファイルを表示

ファイル: JSGlobalData.cpp プロジェクト: Czerrr/ISeeBrowser

JSGlobalData::JSGlobalData(bool isShared)
    : machine(new Machine)
    , heap(new Heap(this))
#if ENABLE(JSC_MULTIPLE_THREADS)
    , arrayTable(new HashTable(JSC::arrayTable))
    , dateTable(new HashTable(JSC::dateTable))
    , mathTable(new HashTable(JSC::mathTable))
    , numberTable(new HashTable(JSC::numberTable))
    , regExpTable(new HashTable(JSC::regExpTable))
    , regExpConstructorTable(new HashTable(JSC::regExpConstructorTable))
    , stringTable(new HashTable(JSC::stringTable))
#else
    , arrayTable(&JSC::arrayTable)
    , dateTable(&JSC::dateTable)
    , mathTable(&JSC::mathTable)
    , numberTable(&JSC::numberTable)
    , regExpTable(&JSC::regExpTable)
    , regExpConstructorTable(&JSC::regExpConstructorTable)
    , stringTable(&JSC::stringTable)
#endif
    , nullProtoStructureID(StructureID::create(jsNull()))
    , stringStructureID(StructureID::create(jsNull(), StringType))
    , numberStructureID(StructureID::create(jsNull(), NumberType))
    , identifierTable(createIdentifierTable())
    , propertyNames(new CommonIdentifiers(this))
    , emptyList(new ArgList)
    , opaqueJSClassData(new HashMap<OpaqueJSClass*, OpaqueJSClassContextData*>)
    , newParserObjects(0)
    , parserObjectExtraRefCounts(0)
    , lexer(new Lexer(this))
    , parser(new Parser)
    , head(0)
    , isSharedInstance(isShared)
{
}

コード例 #2

0

ファイルを表示

ファイル: JSGlobalData.cpp プロジェクト: GRGSIBERIA/EAWebKit

JSGlobalData::JSGlobalData()
    : machine(new Machine)
    , heap(new Heap(machine))
#if USE(MULTIPLE_THREADS)
    , arrayTable(new HashTable(KJS::arrayTable))
    , dateTable(new HashTable(KJS::dateTable))
    , mathTable(new HashTable(KJS::mathTable))
    , numberTable(new HashTable(KJS::numberTable))
    , regExpTable(new HashTable(KJS::regExpTable))
    , regExpConstructorTable(new HashTable(KJS::regExpConstructorTable))
    , stringTable(new HashTable(KJS::stringTable))
#else
    , arrayTable(&KJS::arrayTable)
    , dateTable(&KJS::dateTable)
    , mathTable(&KJS::mathTable)
    , numberTable(&KJS::numberTable)
    , regExpTable(&KJS::regExpTable)
    , regExpConstructorTable(&KJS::regExpConstructorTable)
    , stringTable(&KJS::stringTable)
#endif
    , identifierTable(createIdentifierTable())
    , propertyNames(new CommonIdentifiers(this))
    , newParserObjects(0)
    , parserObjectExtraRefCounts(0)
    , lexer(new Lexer(this))
    , parser(new Parser)
    , head(0)
{
}

コード例 #3

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ファイルを表示

ファイル: JSGlobalData.cpp プロジェクト: Mr-Kumar-Abhishek/qt

JSGlobalData::JSGlobalData(bool isShared, const VPtrSet& vptrSet)
    : isSharedInstance(isShared)
    , clientData(0)
    , arrayTable(fastNew<HashTable>(JSC::arrayTable))
    , dateTable(fastNew<HashTable>(JSC::dateTable))
    , jsonTable(fastNew<HashTable>(JSC::jsonTable))
    , mathTable(fastNew<HashTable>(JSC::mathTable))
    , numberTable(fastNew<HashTable>(JSC::numberTable))
    , regExpTable(fastNew<HashTable>(JSC::regExpTable))
    , regExpConstructorTable(fastNew<HashTable>(JSC::regExpConstructorTable))
    , stringTable(fastNew<HashTable>(JSC::stringTable))
    , activationStructure(JSActivation::createStructure(jsNull()))
    , interruptedExecutionErrorStructure(JSObject::createStructure(jsNull()))
    , staticScopeStructure(JSStaticScopeObject::createStructure(jsNull()))
    , stringStructure(JSString::createStructure(jsNull()))
    , notAnObjectErrorStubStructure(JSNotAnObjectErrorStub::createStructure(jsNull()))
    , notAnObjectStructure(JSNotAnObject::createStructure(jsNull()))
    , propertyNameIteratorStructure(JSPropertyNameIterator::createStructure(jsNull()))
    , getterSetterStructure(GetterSetter::createStructure(jsNull()))
    , apiWrapperStructure(JSAPIValueWrapper::createStructure(jsNull()))
#if USE(JSVALUE32)
    , numberStructure(JSNumberCell::createStructure(jsNull()))
#endif
    , jsArrayVPtr(vptrSet.jsArrayVPtr)
    , jsByteArrayVPtr(vptrSet.jsByteArrayVPtr)
    , jsStringVPtr(vptrSet.jsStringVPtr)
    , jsFunctionVPtr(vptrSet.jsFunctionVPtr)
    , identifierTable(createIdentifierTable())
    , propertyNames(new CommonIdentifiers(this))
    , emptyList(new MarkedArgumentBuffer)
    , lexer(new Lexer(this))
    , parser(new Parser)
    , interpreter(new Interpreter)
#if ENABLE(JIT)
    , jitStubs(this)
#endif
    , timeoutChecker(new TimeoutChecker)
    , heap(this)
    , initializingLazyNumericCompareFunction(false)
    , head(0)
    , dynamicGlobalObject(0)
    , functionCodeBlockBeingReparsed(0)
    , firstStringifierToMark(0)
    , markStack(vptrSet.jsArrayVPtr)
#ifndef NDEBUG
    , mainThreadOnly(false)
#endif
{
#if PLATFORM(MAC)
    startProfilerServerIfNeeded();
#endif
}

コード例 #4

0

ファイルを表示

ファイル: JSGlobalData.cpp プロジェクト: fluxer/katie

JSGlobalData::JSGlobalData(bool isShared)
    : isSharedInstance(isShared)
    , clientData(0)
    , arrayTable(fastNew<HashTable>(JSC::arrayTable))
    , dateTable(fastNew<HashTable>(JSC::dateTable))
    , jsonTable(fastNew<HashTable>(JSC::jsonTable))
    , mathTable(fastNew<HashTable>(JSC::mathTable))
    , numberTable(fastNew<HashTable>(JSC::numberTable))
    , regExpTable(fastNew<HashTable>(JSC::regExpTable))
    , regExpConstructorTable(fastNew<HashTable>(JSC::regExpConstructorTable))
    , stringTable(fastNew<HashTable>(JSC::stringTable))
    , activationStructure(JSActivation::createStructure(jsNull()))
    , interruptedExecutionErrorStructure(JSObject::createStructure(jsNull()))
    , staticScopeStructure(JSStaticScopeObject::createStructure(jsNull()))
    , stringStructure(JSString::createStructure(jsNull()))
    , notAnObjectErrorStubStructure(JSNotAnObjectErrorStub::createStructure(jsNull()))
    , notAnObjectStructure(JSNotAnObject::createStructure(jsNull()))
    , propertyNameIteratorStructure(JSPropertyNameIterator::createStructure(jsNull()))
    , getterSetterStructure(GetterSetter::createStructure(jsNull()))
    , apiWrapperStructure(JSAPIValueWrapper::createStructure(jsNull()))
    , dummyMarkableCellStructure(JSCell::createDummyStructure())
#if USE(JSVALUE32)
    , numberStructure(JSNumberCell::createStructure(jsNull()))
#endif
    , identifierTable(createIdentifierTable())
    , propertyNames(new CommonIdentifiers(this))
    , emptyList(new MarkedArgumentBuffer)
    , lexer(new Lexer(this))
    , parser(new Parser)
    , interpreter(new Interpreter)
    , timeoutChecker(new TimeoutChecker)
    , heap(this)
    , initializingLazyNumericCompareFunction(false)
    , head(0)
    , dynamicGlobalObject(0)
    , functionCodeBlockBeingReparsed(0)
    , firstStringifierToMark(0)
    , markStack(jsArrayVPtr)
{
}

コード例 #5

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ファイルを表示

JSGlobalData::JSGlobalData(GlobalDataType globalDataType, ThreadStackType threadStackType, HeapType heapType)
    : heap(this, heapType)
    , globalDataType(globalDataType)
    , clientData(0)
    , topCallFrame(CallFrame::noCaller())
    , arrayConstructorTable(fastNew<HashTable>(JSC::arrayConstructorTable))
    , arrayPrototypeTable(fastNew<HashTable>(JSC::arrayPrototypeTable))
    , booleanPrototypeTable(fastNew<HashTable>(JSC::booleanPrototypeTable))
    , dateTable(fastNew<HashTable>(JSC::dateTable))
    , dateConstructorTable(fastNew<HashTable>(JSC::dateConstructorTable))
    , errorPrototypeTable(fastNew<HashTable>(JSC::errorPrototypeTable))
    , globalObjectTable(fastNew<HashTable>(JSC::globalObjectTable))
    , jsonTable(fastNew<HashTable>(JSC::jsonTable))
    , mathTable(fastNew<HashTable>(JSC::mathTable))
    , numberConstructorTable(fastNew<HashTable>(JSC::numberConstructorTable))
    , numberPrototypeTable(fastNew<HashTable>(JSC::numberPrototypeTable))
    , objectConstructorTable(fastNew<HashTable>(JSC::objectConstructorTable))
    , objectPrototypeTable(fastNew<HashTable>(JSC::objectPrototypeTable))
    , privateNamePrototypeTable(fastNew<HashTable>(JSC::privateNamePrototypeTable))
    , regExpTable(fastNew<HashTable>(JSC::regExpTable))
    , regExpConstructorTable(fastNew<HashTable>(JSC::regExpConstructorTable))
    , regExpPrototypeTable(fastNew<HashTable>(JSC::regExpPrototypeTable))
    , stringTable(fastNew<HashTable>(JSC::stringTable))
    , stringConstructorTable(fastNew<HashTable>(JSC::stringConstructorTable))
    , identifierTable(globalDataType == Default ? wtfThreadData().currentIdentifierTable() : createIdentifierTable())
    , propertyNames(new CommonIdentifiers(this))
    , emptyList(new MarkedArgumentBuffer)
#if ENABLE(ASSEMBLER)
    , executableAllocator(*this)
#endif
    , parserArena(adoptPtr(new ParserArena))
    , keywords(adoptPtr(new Keywords(this)))
    , interpreter(0)
    , jsArrayClassInfo(&JSArray::s_info)
    , jsFinalObjectClassInfo(&JSFinalObject::s_info)
#if ENABLE(DFG_JIT)
    , sizeOfLastScratchBuffer(0)
#endif
    , dynamicGlobalObject(0)
    , cachedUTCOffset(std::numeric_limits<double>::quiet_NaN())
    , maxReentryDepth(threadStackType == ThreadStackTypeSmall ? MaxSmallThreadReentryDepth : MaxLargeThreadReentryDepth)
    , m_enabledProfiler(0)
    , m_regExpCache(new RegExpCache(this))
#if ENABLE(REGEXP_TRACING)
    , m_rtTraceList(new RTTraceList())
#endif
#ifndef NDEBUG
    , exclusiveThread(0)
#endif
#if CPU(X86) && ENABLE(JIT)
    , m_timeoutCount(512)
#endif
    , m_newStringsSinceLastHashConst(0)
#if ENABLE(ASSEMBLER) && (ENABLE(CLASSIC_INTERPRETER) || ENABLE(LLINT))
    , m_canUseAssembler(enableAssembler(executableAllocator))
#endif
#if ENABLE(GC_VALIDATION)
    , m_initializingObjectClass(0)
#endif
    , m_inDefineOwnProperty(false)
{
    interpreter = new Interpreter;

    // Need to be careful to keep everything consistent here
    JSLockHolder lock(this);
    IdentifierTable* existingEntryIdentifierTable = wtfThreadData().setCurrentIdentifierTable(identifierTable);
    structureStructure.set(*this, Structure::createStructure(*this));
    debuggerActivationStructure.set(*this, DebuggerActivation::createStructure(*this, 0, jsNull()));
    activationStructure.set(*this, JSActivation::createStructure(*this, 0, jsNull()));
    interruptedExecutionErrorStructure.set(*this, InterruptedExecutionError::createStructure(*this, 0, jsNull()));
    terminatedExecutionErrorStructure.set(*this, TerminatedExecutionError::createStructure(*this, 0, jsNull()));
    staticScopeStructure.set(*this, JSStaticScopeObject::createStructure(*this, 0, jsNull()));
    strictEvalActivationStructure.set(*this, StrictEvalActivation::createStructure(*this, 0, jsNull()));
    stringStructure.set(*this, JSString::createStructure(*this, 0, jsNull()));
    notAnObjectStructure.set(*this, JSNotAnObject::createStructure(*this, 0, jsNull()));
    propertyNameIteratorStructure.set(*this, JSPropertyNameIterator::createStructure(*this, 0, jsNull()));
    getterSetterStructure.set(*this, GetterSetter::createStructure(*this, 0, jsNull()));
    apiWrapperStructure.set(*this, JSAPIValueWrapper::createStructure(*this, 0, jsNull()));
    scopeChainNodeStructure.set(*this, ScopeChainNode::createStructure(*this, 0, jsNull()));
    executableStructure.set(*this, ExecutableBase::createStructure(*this, 0, jsNull()));
    nativeExecutableStructure.set(*this, NativeExecutable::createStructure(*this, 0, jsNull()));
    evalExecutableStructure.set(*this, EvalExecutable::createStructure(*this, 0, jsNull()));
    programExecutableStructure.set(*this, ProgramExecutable::createStructure(*this, 0, jsNull()));
    functionExecutableStructure.set(*this, FunctionExecutable::createStructure(*this, 0, jsNull()));
    regExpStructure.set(*this, RegExp::createStructure(*this, 0, jsNull()));
    structureChainStructure.set(*this, StructureChain::createStructure(*this, 0, jsNull()));

    wtfThreadData().setCurrentIdentifierTable(existingEntryIdentifierTable);

#if ENABLE(JIT)
    jitStubs = adoptPtr(new JITThunks(this));
#endif
    
    interpreter->initialize(&llintData, this->canUseJIT());
    
    initializeHostCallReturnValue(); // This is needed to convince the linker not to drop host call return support.

    heap.notifyIsSafeToCollect();
    
    llintData.performAssertions(*this);
}

コード例 #6

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ファイルを表示

ファイル: JSGlobalData.cpp プロジェクト: chrisguan/Olympia_on_Desktop

JSGlobalData::JSGlobalData(GlobalDataType globalDataType, ThreadStackType threadStackType)
    : globalDataType(globalDataType)
    , clientData(0)
    , arrayTable(fastNew<HashTable>(JSC::arrayTable))
    , dateTable(fastNew<HashTable>(JSC::dateTable))
    , jsonTable(fastNew<HashTable>(JSC::jsonTable))
    , mathTable(fastNew<HashTable>(JSC::mathTable))
    , numberTable(fastNew<HashTable>(JSC::numberTable))
    , regExpTable(fastNew<HashTable>(JSC::regExpTable))
    , regExpConstructorTable(fastNew<HashTable>(JSC::regExpConstructorTable))
    , stringTable(fastNew<HashTable>(JSC::stringTable))
    , activationStructure(JSActivation::createStructure(jsNull()))
    , interruptedExecutionErrorStructure(JSObject::createStructure(jsNull()))
    , terminatedExecutionErrorStructure(JSObject::createStructure(jsNull()))
    , staticScopeStructure(JSStaticScopeObject::createStructure(jsNull()))
    , stringStructure(JSString::createStructure(jsNull()))
    , notAnObjectErrorStubStructure(JSNotAnObjectErrorStub::createStructure(jsNull()))
    , notAnObjectStructure(JSNotAnObject::createStructure(jsNull()))
    , propertyNameIteratorStructure(JSPropertyNameIterator::createStructure(jsNull()))
    , getterSetterStructure(GetterSetter::createStructure(jsNull()))
    , apiWrapperStructure(JSAPIValueWrapper::createStructure(jsNull()))
    , dummyMarkableCellStructure(JSCell::createDummyStructure())
#if USE(JSVALUE32)
    , numberStructure(JSNumberCell::createStructure(jsNull()))
#endif
    , identifierTable(globalDataType == Default ? wtfThreadData().currentIdentifierTable() : createIdentifierTable())
    , propertyNames(new CommonIdentifiers(this))
    , emptyList(new MarkedArgumentBuffer)
    , lexer(new Lexer(this))
    , parser(new Parser)
    , interpreter(new Interpreter)
#if ENABLE(JIT)
    , jitStubs(this)
#endif
    , heap(this)
    , initializingLazyNumericCompareFunction(false)
    , head(0)
    , dynamicGlobalObject(0)
    , functionCodeBlockBeingReparsed(0)
    , firstStringifierToMark(0)
    , markStack(jsArrayVPtr)
    , cachedUTCOffset(NaN)
    , weakRandom(static_cast<int>(currentTime()))
    , maxReentryDepth(threadStackType == ThreadStackTypeSmall ? MaxSmallThreadReentryDepth : MaxLargeThreadReentryDepth)
#ifndef NDEBUG
    , exclusiveThread(0)
#endif
{
#if PLATFORM(MAC)
    startProfilerServerIfNeeded();
#endif
}

コード例 #7

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ファイルを表示

JSGlobalData::JSGlobalData(GlobalDataType globalDataType, HeapType heapType)
    :
#if ENABLE(ASSEMBLER)
      executableAllocator(*this),
#endif
      heap(this, heapType)
    , globalDataType(globalDataType)
    , clientData(0)
    , topCallFrame(CallFrame::noCaller())
    , arrayConstructorTable(fastNew<HashTable>(JSC::arrayConstructorTable))
    , arrayPrototypeTable(fastNew<HashTable>(JSC::arrayPrototypeTable))
    , booleanPrototypeTable(fastNew<HashTable>(JSC::booleanPrototypeTable))
    , dateTable(fastNew<HashTable>(JSC::dateTable))
    , dateConstructorTable(fastNew<HashTable>(JSC::dateConstructorTable))
    , errorPrototypeTable(fastNew<HashTable>(JSC::errorPrototypeTable))
    , globalObjectTable(fastNew<HashTable>(JSC::globalObjectTable))
    , jsonTable(fastNew<HashTable>(JSC::jsonTable))
    , mathTable(fastNew<HashTable>(JSC::mathTable))
    , numberConstructorTable(fastNew<HashTable>(JSC::numberConstructorTable))
    , numberPrototypeTable(fastNew<HashTable>(JSC::numberPrototypeTable))
    , objectConstructorTable(fastNew<HashTable>(JSC::objectConstructorTable))
    , objectPrototypeTable(fastNew<HashTable>(JSC::objectPrototypeTable))
    , privateNamePrototypeTable(fastNew<HashTable>(JSC::privateNamePrototypeTable))
    , regExpTable(fastNew<HashTable>(JSC::regExpTable))
    , regExpConstructorTable(fastNew<HashTable>(JSC::regExpConstructorTable))
    , regExpPrototypeTable(fastNew<HashTable>(JSC::regExpPrototypeTable))
    , stringTable(fastNew<HashTable>(JSC::stringTable))
    , stringConstructorTable(fastNew<HashTable>(JSC::stringConstructorTable))
    , identifierTable(globalDataType == Default ? wtfThreadData().currentIdentifierTable() : createIdentifierTable())
    , propertyNames(new CommonIdentifiers(this))
    , emptyList(new MarkedArgumentBuffer)
    , parserArena(adoptPtr(new ParserArena))
    , keywords(adoptPtr(new Keywords(this)))
    , interpreter(0)
    , jsArrayClassInfo(&JSArray::s_info)
    , jsFinalObjectClassInfo(&JSFinalObject::s_info)
#if ENABLE(DFG_JIT)
    , sizeOfLastScratchBuffer(0)
#endif
    , dynamicGlobalObject(0)
    , cachedUTCOffset(QNaN)
    , m_enabledProfiler(0)
    , m_regExpCache(new RegExpCache(this))
#if ENABLE(REGEXP_TRACING)
    , m_rtTraceList(new RTTraceList())
#endif
#ifndef NDEBUG
    , exclusiveThread(0)
#endif
#if CPU(X86) && ENABLE(JIT)
    , m_timeoutCount(512)
#endif
    , m_newStringsSinceLastHashConst(0)
#if ENABLE(ASSEMBLER)
    , m_canUseAssembler(enableAssembler(executableAllocator))
#endif
#if ENABLE(JIT)
    , m_canUseJIT(m_canUseAssembler && Options::useJIT())
#endif
#if ENABLE(YARR_JIT)
    , m_canUseRegExpJIT(m_canUseAssembler && Options::useRegExpJIT())
#endif
#if ENABLE(GC_VALIDATION)
    , m_initializingObjectClass(0)
#endif
    , m_inDefineOwnProperty(false)
    , m_codeCache(CodeCache::create())
{
    interpreter = new Interpreter(*this);

    // Need to be careful to keep everything consistent here
    JSLockHolder lock(this);
    IdentifierTable* existingEntryIdentifierTable = wtfThreadData().setCurrentIdentifierTable(identifierTable);
    structureStructure.set(*this, Structure::createStructure(*this));
    structureRareDataStructure.set(*this, StructureRareData::createStructure(*this, 0, jsNull()));
    debuggerActivationStructure.set(*this, DebuggerActivation::createStructure(*this, 0, jsNull()));
    interruptedExecutionErrorStructure.set(*this, InterruptedExecutionError::createStructure(*this, 0, jsNull()));
    terminatedExecutionErrorStructure.set(*this, TerminatedExecutionError::createStructure(*this, 0, jsNull()));
    stringStructure.set(*this, JSString::createStructure(*this, 0, jsNull()));
    notAnObjectStructure.set(*this, JSNotAnObject::createStructure(*this, 0, jsNull()));
    propertyNameIteratorStructure.set(*this, JSPropertyNameIterator::createStructure(*this, 0, jsNull()));
    getterSetterStructure.set(*this, GetterSetter::createStructure(*this, 0, jsNull()));
    apiWrapperStructure.set(*this, JSAPIValueWrapper::createStructure(*this, 0, jsNull()));
    JSScopeStructure.set(*this, JSScope::createStructure(*this, 0, jsNull()));
    executableStructure.set(*this, ExecutableBase::createStructure(*this, 0, jsNull()));
    nativeExecutableStructure.set(*this, NativeExecutable::createStructure(*this, 0, jsNull()));
    evalExecutableStructure.set(*this, EvalExecutable::createStructure(*this, 0, jsNull()));
    programExecutableStructure.set(*this, ProgramExecutable::createStructure(*this, 0, jsNull()));
    functionExecutableStructure.set(*this, FunctionExecutable::createStructure(*this, 0, jsNull()));
    regExpStructure.set(*this, RegExp::createStructure(*this, 0, jsNull()));
    sharedSymbolTableStructure.set(*this, SharedSymbolTable::createStructure(*this, 0, jsNull()));
    structureChainStructure.set(*this, StructureChain::createStructure(*this, 0, jsNull()));
    sparseArrayValueMapStructure.set(*this, SparseArrayValueMap::createStructure(*this, 0, jsNull()));
    withScopeStructure.set(*this, JSWithScope::createStructure(*this, 0, jsNull()));
    unlinkedFunctionExecutableStructure.set(*this, UnlinkedFunctionExecutable::createStructure(*this, 0, jsNull()));
    unlinkedProgramCodeBlockStructure.set(*this, UnlinkedProgramCodeBlock::createStructure(*this, 0, jsNull()));
    unlinkedEvalCodeBlockStructure.set(*this, UnlinkedEvalCodeBlock::createStructure(*this, 0, jsNull()));
    unlinkedFunctionCodeBlockStructure.set(*this, UnlinkedFunctionCodeBlock::createStructure(*this, 0, jsNull()));
    smallStrings.initializeCommonStrings(*this);

    wtfThreadData().setCurrentIdentifierTable(existingEntryIdentifierTable);

#if ENABLE(JIT)
    jitStubs = adoptPtr(new JITThunks());
    performPlatformSpecificJITAssertions(this);
#endif
    
    interpreter->initialize(this->canUseJIT());
    
#if ENABLE(JIT)
    initializeHostCallReturnValue(); // This is needed to convince the linker not to drop host call return support.
#endif

    heap.notifyIsSafeToCollect();

    LLInt::Data::performAssertions(*this);
    
    if (Options::enableProfiler())
        m_perBytecodeProfiler = adoptPtr(new Profiler::Database(*this));

#if ENABLE(DFG_JIT)
    if (canUseJIT())
        m_dfgState = adoptPtr(new DFG::LongLivedState());
#endif
}

コード例 #8

0

ファイルを表示

ファイル: JSGlobalData.cpp プロジェクト: mulriple/Webkit-Projects

JSGlobalData::JSGlobalData(GlobalDataType globalDataType, ThreadStackType threadStackType)
    : globalDataType(globalDataType)
    , clientData(0)
    , arrayConstructorTable(fastNew<HashTable>(JSC::arrayConstructorTable))
    , arrayPrototypeTable(fastNew<HashTable>(JSC::arrayPrototypeTable))
    , booleanPrototypeTable(fastNew<HashTable>(JSC::booleanPrototypeTable))
    , dateTable(fastNew<HashTable>(JSC::dateTable))
    , dateConstructorTable(fastNew<HashTable>(JSC::dateConstructorTable))
    , errorPrototypeTable(fastNew<HashTable>(JSC::errorPrototypeTable))
    , globalObjectTable(fastNew<HashTable>(JSC::globalObjectTable))
    , jsonTable(fastNew<HashTable>(JSC::jsonTable))
    , mathTable(fastNew<HashTable>(JSC::mathTable))
    , numberConstructorTable(fastNew<HashTable>(JSC::numberConstructorTable))
    , numberPrototypeTable(fastNew<HashTable>(JSC::numberPrototypeTable))
    , objectConstructorTable(fastNew<HashTable>(JSC::objectConstructorTable))
    , objectPrototypeTable(fastNew<HashTable>(JSC::objectPrototypeTable))
    , regExpTable(fastNew<HashTable>(JSC::regExpTable))
    , regExpConstructorTable(fastNew<HashTable>(JSC::regExpConstructorTable))
    , regExpPrototypeTable(fastNew<HashTable>(JSC::regExpPrototypeTable))
    , stringTable(fastNew<HashTable>(JSC::stringTable))
    , stringConstructorTable(fastNew<HashTable>(JSC::stringConstructorTable))
    , identifierTable(globalDataType == Default ? wtfThreadData().currentIdentifierTable() : createIdentifierTable())
    , propertyNames(new CommonIdentifiers(this))
    , emptyList(new MarkedArgumentBuffer)
#if ENABLE(ASSEMBLER)
    , executableAllocator(*this)
    , regexAllocator(*this)
#endif
    , lexer(new Lexer(this))
    , parser(new Parser)
    , interpreter(0)
    , heap(this)
    , globalObjectCount(0)
    , dynamicGlobalObject(0)
    , cachedUTCOffset(NaN)
    , maxReentryDepth(threadStackType == ThreadStackTypeSmall ? MaxSmallThreadReentryDepth : MaxLargeThreadReentryDepth)
    , m_regExpCache(new RegExpCache(this))
#if ENABLE(REGEXP_TRACING)
    , m_rtTraceList(new RTTraceList())
#endif
#ifndef NDEBUG
    , exclusiveThread(0)
#endif
{
    interpreter = new Interpreter(*this);
    if (globalDataType == Default)
        m_stack = wtfThreadData().stack();

    // Need to be careful to keep everything consistent here
    IdentifierTable* existingEntryIdentifierTable = wtfThreadData().setCurrentIdentifierTable(identifierTable);
    JSLock lock(SilenceAssertionsOnly);
    structureStructure.set(*this, Structure::createStructure(*this));
    debuggerActivationStructure.set(*this, DebuggerActivation::createStructure(*this, jsNull()));
    activationStructure.set(*this, JSActivation::createStructure(*this, jsNull()));
    interruptedExecutionErrorStructure.set(*this, JSNonFinalObject::createStructure(*this, jsNull()));
    terminatedExecutionErrorStructure.set(*this, JSNonFinalObject::createStructure(*this, jsNull()));
    staticScopeStructure.set(*this, JSStaticScopeObject::createStructure(*this, jsNull()));
    strictEvalActivationStructure.set(*this, StrictEvalActivation::createStructure(*this, jsNull()));
    stringStructure.set(*this, JSString::createStructure(*this, jsNull()));
    notAnObjectStructure.set(*this, JSNotAnObject::createStructure(*this, jsNull()));
    propertyNameIteratorStructure.set(*this, JSPropertyNameIterator::createStructure(*this, jsNull()));
    getterSetterStructure.set(*this, GetterSetter::createStructure(*this, jsNull()));
    apiWrapperStructure.set(*this, JSAPIValueWrapper::createStructure(*this, jsNull()));
    scopeChainNodeStructure.set(*this, ScopeChainNode::createStructure(*this, jsNull()));
    executableStructure.set(*this, ExecutableBase::createStructure(*this, jsNull()));
    nativeExecutableStructure.set(*this, NativeExecutable::createStructure(*this, jsNull()));
    evalExecutableStructure.set(*this, EvalExecutable::createStructure(*this, jsNull()));
    programExecutableStructure.set(*this, ProgramExecutable::createStructure(*this, jsNull()));
    functionExecutableStructure.set(*this, FunctionExecutable::createStructure(*this, jsNull()));
    dummyMarkableCellStructure.set(*this, JSCell::createDummyStructure(*this));
    regExpStructure.set(*this, RegExp::createStructure(*this, jsNull()));
    structureChainStructure.set(*this, StructureChain::createStructure(*this, jsNull()));

#if ENABLE(JSC_ZOMBIES)
    zombieStructure.set(*this, JSZombie::createStructure(*this, jsNull()));
#endif

    wtfThreadData().setCurrentIdentifierTable(existingEntryIdentifierTable);

#if PLATFORM(MAC)
    startProfilerServerIfNeeded();
#endif
#if ENABLE(JIT) && ENABLE(INTERPRETER)
#if USE(CF)
    CFStringRef canUseJITKey = CFStringCreateWithCString(0 , "JavaScriptCoreUseJIT", kCFStringEncodingMacRoman);
    CFBooleanRef canUseJIT = (CFBooleanRef)CFPreferencesCopyAppValue(canUseJITKey, kCFPreferencesCurrentApplication);
    if (canUseJIT) {
        m_canUseJIT = kCFBooleanTrue == canUseJIT;
        CFRelease(canUseJIT);
    } else {
      char* canUseJITString = getenv("JavaScriptCoreUseJIT");
      m_canUseJIT = !canUseJITString || atoi(canUseJITString);
    }
    CFRelease(canUseJITKey);
#elif OS(UNIX)
    char* canUseJITString = getenv("JavaScriptCoreUseJIT");
    m_canUseJIT = !canUseJITString || atoi(canUseJITString);
#else
    m_canUseJIT = true;
#endif
#endif
#if ENABLE(JIT)
#if ENABLE(INTERPRETER)
    if (m_canUseJIT)
        m_canUseJIT = executableAllocator.isValid();
#endif
    jitStubs = adoptPtr(new JITThunks(this));
#endif
}

コード例 #9

0

ファイルを表示

ファイル: JSGlobalData.cpp プロジェクト: ruizhang331/WebKit

JSGlobalData::JSGlobalData(GlobalDataType globalDataType, ThreadStackType threadStackType, HeapSize heapSize)
    : globalDataType(globalDataType)
    , clientData(0)
    , topCallFrame(CallFrame::noCaller())
    , arrayConstructorTable(fastNew<HashTable>(JSC::arrayConstructorTable))
    , arrayPrototypeTable(fastNew<HashTable>(JSC::arrayPrototypeTable))
    , booleanPrototypeTable(fastNew<HashTable>(JSC::booleanPrototypeTable))
    , dateTable(fastNew<HashTable>(JSC::dateTable))
    , dateConstructorTable(fastNew<HashTable>(JSC::dateConstructorTable))
    , errorPrototypeTable(fastNew<HashTable>(JSC::errorPrototypeTable))
    , globalObjectTable(fastNew<HashTable>(JSC::globalObjectTable))
    , jsonTable(fastNew<HashTable>(JSC::jsonTable))
    , mathTable(fastNew<HashTable>(JSC::mathTable))
    , numberConstructorTable(fastNew<HashTable>(JSC::numberConstructorTable))
    , numberPrototypeTable(fastNew<HashTable>(JSC::numberPrototypeTable))
    , objectConstructorTable(fastNew<HashTable>(JSC::objectConstructorTable))
    , objectPrototypeTable(fastNew<HashTable>(JSC::objectPrototypeTable))
    , regExpTable(fastNew<HashTable>(JSC::regExpTable))
    , regExpConstructorTable(fastNew<HashTable>(JSC::regExpConstructorTable))
    , regExpPrototypeTable(fastNew<HashTable>(JSC::regExpPrototypeTable))
    , stringTable(fastNew<HashTable>(JSC::stringTable))
    , stringConstructorTable(fastNew<HashTable>(JSC::stringConstructorTable))
    , identifierTable(globalDataType == Default ? wtfThreadData().currentIdentifierTable() : createIdentifierTable())
    , propertyNames(new CommonIdentifiers(this))
    , emptyList(new MarkedArgumentBuffer)
#if ENABLE(ASSEMBLER)
    , executableAllocator(*this)
#endif
    , parserArena(adoptPtr(new ParserArena))
    , keywords(adoptPtr(new Keywords(this)))
    , interpreter(0)
    , heap(this, heapSize)
#if ENABLE(DFG_JIT)
    , sizeOfLastScratchBuffer(0)
#endif
    , dynamicGlobalObject(0)
    , cachedUTCOffset(std::numeric_limits<double>::quiet_NaN())
    , maxReentryDepth(threadStackType == ThreadStackTypeSmall ? MaxSmallThreadReentryDepth : MaxLargeThreadReentryDepth)
    , m_regExpCache(new RegExpCache(this))
#if ENABLE(REGEXP_TRACING)
    , m_rtTraceList(new RTTraceList())
#endif
#ifndef NDEBUG
    , exclusiveThread(0)
#endif
#if CPU(X86) && ENABLE(JIT)
    , m_timeoutCount(512)
#endif
#if ENABLE(GC_VALIDATION)
    , m_isInitializingObject(false)
#endif
{
    interpreter = new Interpreter;
    if (globalDataType == Default)
        m_stack = wtfThreadData().stack();

    // Need to be careful to keep everything consistent here
    IdentifierTable* existingEntryIdentifierTable = wtfThreadData().setCurrentIdentifierTable(identifierTable);
    JSLock lock(SilenceAssertionsOnly);
    structureStructure.set(*this, Structure::createStructure(*this));
    debuggerActivationStructure.set(*this, DebuggerActivation::createStructure(*this, 0, jsNull()));
    activationStructure.set(*this, JSActivation::createStructure(*this, 0, jsNull()));
    interruptedExecutionErrorStructure.set(*this, InterruptedExecutionError::createStructure(*this, 0, jsNull()));
    terminatedExecutionErrorStructure.set(*this, TerminatedExecutionError::createStructure(*this, 0, jsNull()));
    staticScopeStructure.set(*this, JSStaticScopeObject::createStructure(*this, 0, jsNull()));
    strictEvalActivationStructure.set(*this, StrictEvalActivation::createStructure(*this, 0, jsNull()));
    stringStructure.set(*this, JSString::createStructure(*this, 0, jsNull()));
    notAnObjectStructure.set(*this, JSNotAnObject::createStructure(*this, 0, jsNull()));
    propertyNameIteratorStructure.set(*this, JSPropertyNameIterator::createStructure(*this, 0, jsNull()));
    getterSetterStructure.set(*this, GetterSetter::createStructure(*this, 0, jsNull()));
    apiWrapperStructure.set(*this, JSAPIValueWrapper::createStructure(*this, 0, jsNull()));
    scopeChainNodeStructure.set(*this, ScopeChainNode::createStructure(*this, 0, jsNull()));
    executableStructure.set(*this, ExecutableBase::createStructure(*this, 0, jsNull()));
    nativeExecutableStructure.set(*this, NativeExecutable::createStructure(*this, 0, jsNull()));
    evalExecutableStructure.set(*this, EvalExecutable::createStructure(*this, 0, jsNull()));
    programExecutableStructure.set(*this, ProgramExecutable::createStructure(*this, 0, jsNull()));
    functionExecutableStructure.set(*this, FunctionExecutable::createStructure(*this, 0, jsNull()));
    regExpStructure.set(*this, RegExp::createStructure(*this, 0, jsNull()));
    structureChainStructure.set(*this, StructureChain::createStructure(*this, 0, jsNull()));

    wtfThreadData().setCurrentIdentifierTable(existingEntryIdentifierTable);

#if ENABLE(JIT) && ENABLE(INTERPRETER)
#if USE(CF)
    CFStringRef canUseJITKey = CFStringCreateWithCString(0 , "JavaScriptCoreUseJIT", kCFStringEncodingMacRoman);
    CFBooleanRef canUseJIT = (CFBooleanRef)CFPreferencesCopyAppValue(canUseJITKey, kCFPreferencesCurrentApplication);
    if (canUseJIT) {
        m_canUseJIT = kCFBooleanTrue == canUseJIT;
        CFRelease(canUseJIT);
    } else {
      char* canUseJITString = getenv("JavaScriptCoreUseJIT");
      m_canUseJIT = !canUseJITString || atoi(canUseJITString);
    }
    CFRelease(canUseJITKey);
#elif OS(UNIX)
    char* canUseJITString = getenv("JavaScriptCoreUseJIT");
    m_canUseJIT = !canUseJITString || atoi(canUseJITString);
#else
    m_canUseJIT = true;
#endif
#endif
#if ENABLE(JIT)
#if ENABLE(INTERPRETER)
    if (m_canUseJIT)
        m_canUseJIT = executableAllocator.isValid();
#endif
    jitStubs = adoptPtr(new JITThunks(this));
#endif

    interpreter->initialize(this->canUseJIT());

    heap.notifyIsSafeToCollect();
}

コード例 #10

0

ファイルを表示

VM::VM(VMType vmType, HeapType heapType)
    : m_apiLock(adoptRef(new JSLock(this)))
#if ENABLE(ASSEMBLER)
    , executableAllocator(*this)
#endif
    , heap(this, heapType)
    , vmType(vmType)
    , clientData(0)
    , topCallFrame(CallFrame::noCaller()->removeHostCallFrameFlag())
    , arrayConstructorTable(adoptPtr(new HashTable(JSC::arrayConstructorTable)))
    , arrayPrototypeTable(adoptPtr(new HashTable(JSC::arrayPrototypeTable)))
    , booleanPrototypeTable(adoptPtr(new HashTable(JSC::booleanPrototypeTable)))
    , dataViewTable(adoptPtr(new HashTable(JSC::dataViewTable)))
    , dateTable(adoptPtr(new HashTable(JSC::dateTable)))
    , dateConstructorTable(adoptPtr(new HashTable(JSC::dateConstructorTable)))
    , errorPrototypeTable(adoptPtr(new HashTable(JSC::errorPrototypeTable)))
    , globalObjectTable(adoptPtr(new HashTable(JSC::globalObjectTable)))
    , jsonTable(adoptPtr(new HashTable(JSC::jsonTable)))
    , numberConstructorTable(adoptPtr(new HashTable(JSC::numberConstructorTable)))
    , numberPrototypeTable(adoptPtr(new HashTable(JSC::numberPrototypeTable)))
    , objectConstructorTable(adoptPtr(new HashTable(JSC::objectConstructorTable)))
    , privateNamePrototypeTable(adoptPtr(new HashTable(JSC::privateNamePrototypeTable)))
    , regExpTable(adoptPtr(new HashTable(JSC::regExpTable)))
    , regExpConstructorTable(adoptPtr(new HashTable(JSC::regExpConstructorTable)))
    , regExpPrototypeTable(adoptPtr(new HashTable(JSC::regExpPrototypeTable)))
    , stringConstructorTable(adoptPtr(new HashTable(JSC::stringConstructorTable)))
#if ENABLE(PROMISES)
    , promisePrototypeTable(adoptPtr(new HashTable(JSC::promisePrototypeTable)))
    , promiseConstructorTable(adoptPtr(new HashTable(JSC::promiseConstructorTable)))
    , promiseResolverPrototypeTable(adoptPtr(new HashTable(JSC::promiseResolverPrototypeTable)))
#endif
    , identifierTable(vmType == Default ? wtfThreadData().currentIdentifierTable() : createIdentifierTable())
    , propertyNames(new CommonIdentifiers(this))
    , emptyList(new MarkedArgumentBuffer)
    , parserArena(adoptPtr(new ParserArena))
    , keywords(adoptPtr(new Keywords(this)))
    , interpreter(0)
    , jsArrayClassInfo(JSArray::info())
    , jsFinalObjectClassInfo(JSFinalObject::info())
#if ENABLE(DFG_JIT)
    , sizeOfLastScratchBuffer(0)
#endif
    , dynamicGlobalObject(0)
    , m_enabledProfiler(0)
    , m_regExpCache(new RegExpCache(this))
#if ENABLE(REGEXP_TRACING)
    , m_rtTraceList(new RTTraceList())
#endif
    , exclusiveThread(0)
    , m_newStringsSinceLastHashCons(0)
#if ENABLE(ASSEMBLER)
    , m_canUseAssembler(enableAssembler(executableAllocator))
#endif
#if ENABLE(JIT)
    , m_canUseJIT(m_canUseAssembler && Options::useJIT())
#endif
#if ENABLE(YARR_JIT)
    , m_canUseRegExpJIT(m_canUseAssembler && Options::useRegExpJIT())
#endif
#if ENABLE(GC_VALIDATION)
    , m_initializingObjectClass(0)
#endif
    , m_inDefineOwnProperty(false)
    , m_codeCache(CodeCache::create())
{
    interpreter = new Interpreter(*this);

    // Need to be careful to keep everything consistent here
    JSLockHolder lock(this);
    IdentifierTable* existingEntryIdentifierTable = wtfThreadData().setCurrentIdentifierTable(identifierTable);
    structureStructure.set(*this, Structure::createStructure(*this));
    structureRareDataStructure.set(*this, StructureRareData::createStructure(*this, 0, jsNull()));
    debuggerActivationStructure.set(*this, DebuggerActivation::createStructure(*this, 0, jsNull()));
    terminatedExecutionErrorStructure.set(*this, TerminatedExecutionError::createStructure(*this, 0, jsNull()));
    stringStructure.set(*this, JSString::createStructure(*this, 0, jsNull()));
    notAnObjectStructure.set(*this, JSNotAnObject::createStructure(*this, 0, jsNull()));
    propertyNameIteratorStructure.set(*this, JSPropertyNameIterator::createStructure(*this, 0, jsNull()));
    getterSetterStructure.set(*this, GetterSetter::createStructure(*this, 0, jsNull()));
    apiWrapperStructure.set(*this, JSAPIValueWrapper::createStructure(*this, 0, jsNull()));
    JSScopeStructure.set(*this, JSScope::createStructure(*this, 0, jsNull()));
    executableStructure.set(*this, ExecutableBase::createStructure(*this, 0, jsNull()));
    nativeExecutableStructure.set(*this, NativeExecutable::createStructure(*this, 0, jsNull()));
    evalExecutableStructure.set(*this, EvalExecutable::createStructure(*this, 0, jsNull()));
    programExecutableStructure.set(*this, ProgramExecutable::createStructure(*this, 0, jsNull()));
    functionExecutableStructure.set(*this, FunctionExecutable::createStructure(*this, 0, jsNull()));
    regExpStructure.set(*this, RegExp::createStructure(*this, 0, jsNull()));
    sharedSymbolTableStructure.set(*this, SharedSymbolTable::createStructure(*this, 0, jsNull()));
    structureChainStructure.set(*this, StructureChain::createStructure(*this, 0, jsNull()));
    sparseArrayValueMapStructure.set(*this, SparseArrayValueMap::createStructure(*this, 0, jsNull()));
    withScopeStructure.set(*this, JSWithScope::createStructure(*this, 0, jsNull()));
    unlinkedFunctionExecutableStructure.set(*this, UnlinkedFunctionExecutable::createStructure(*this, 0, jsNull()));
    unlinkedProgramCodeBlockStructure.set(*this, UnlinkedProgramCodeBlock::createStructure(*this, 0, jsNull()));
    unlinkedEvalCodeBlockStructure.set(*this, UnlinkedEvalCodeBlock::createStructure(*this, 0, jsNull()));
    unlinkedFunctionCodeBlockStructure.set(*this, UnlinkedFunctionCodeBlock::createStructure(*this, 0, jsNull()));
    propertyTableStructure.set(*this, PropertyTable::createStructure(*this, 0, jsNull()));
    smallStrings.initializeCommonStrings(*this);

    wtfThreadData().setCurrentIdentifierTable(existingEntryIdentifierTable);

#if ENABLE(JIT)
    jitStubs = adoptPtr(new JITThunks());
    performPlatformSpecificJITAssertions(this);
#endif
    
    interpreter->initialize(this->canUseJIT());
    
#if ENABLE(JIT)
    initializeHostCallReturnValue(); // This is needed to convince the linker not to drop host call return support.
#endif

    heap.notifyIsSafeToCollect();

    LLInt::Data::performAssertions(*this);
    
    if (Options::enableProfiler()) {
        m_perBytecodeProfiler = adoptPtr(new Profiler::Database(*this));

        StringPrintStream pathOut;
#if !OS(WINCE)
        const char* profilerPath = getenv("JSC_PROFILER_PATH");
        if (profilerPath)
            pathOut.print(profilerPath, "/");
#endif
        pathOut.print("JSCProfile-", getCurrentProcessID(), "-", m_perBytecodeProfiler->databaseID(), ".json");
        m_perBytecodeProfiler->registerToSaveAtExit(pathOut.toCString().data());
    }

#if ENABLE(DFG_JIT)
    if (canUseJIT())
        dfgState = adoptPtr(new DFG::LongLivedState());
#endif
    
    // Initialize this last, as a free way of asserting that VM initialization itself
    // won't use this.
    m_typedArrayController = adoptRef(new SimpleTypedArrayController());
}

コード例 #11

0

ファイルを表示

ファイル: JSGlobalData.cpp プロジェクト: rkudiyarov/ClutterWebkit

JSGlobalData::JSGlobalData(GlobalDataType globalDataType, ThreadStackType threadStackType)
    : globalDataType(globalDataType)
    , clientData(0)
    , arrayTable(fastNew<HashTable>(JSC::arrayTable))
    , dateTable(fastNew<HashTable>(JSC::dateTable))
    , jsonTable(fastNew<HashTable>(JSC::jsonTable))
    , mathTable(fastNew<HashTable>(JSC::mathTable))
    , numberTable(fastNew<HashTable>(JSC::numberTable))
    , regExpTable(fastNew<HashTable>(JSC::regExpTable))
    , regExpConstructorTable(fastNew<HashTable>(JSC::regExpConstructorTable))
    , stringTable(fastNew<HashTable>(JSC::stringTable))
    , activationStructure(JSActivation::createStructure(jsNull()))
    , interruptedExecutionErrorStructure(JSObject::createStructure(jsNull()))
    , terminatedExecutionErrorStructure(JSObject::createStructure(jsNull()))
    , staticScopeStructure(JSStaticScopeObject::createStructure(jsNull()))
    , strictEvalActivationStructure(StrictEvalActivation::createStructure(jsNull()))
    , stringStructure(JSString::createStructure(jsNull()))
    , notAnObjectErrorStubStructure(JSNotAnObjectErrorStub::createStructure(jsNull()))
    , notAnObjectStructure(JSNotAnObject::createStructure(jsNull()))
    , propertyNameIteratorStructure(JSPropertyNameIterator::createStructure(jsNull()))
    , getterSetterStructure(GetterSetter::createStructure(jsNull()))
    , apiWrapperStructure(JSAPIValueWrapper::createStructure(jsNull()))
    , dummyMarkableCellStructure(JSCell::createDummyStructure())
#if USE(JSVALUE32)
    , numberStructure(JSNumberCell::createStructure(jsNull()))
#endif
    , identifierTable(globalDataType == Default ? wtfThreadData().currentIdentifierTable() : createIdentifierTable())
    , propertyNames(new CommonIdentifiers(this))
    , emptyList(new MarkedArgumentBuffer)
    , lexer(new Lexer(this))
    , parser(new Parser)
    , interpreter(new Interpreter)
    , heap(this)
    , head(0)
    , dynamicGlobalObject(0)
    , functionCodeBlockBeingReparsed(0)
    , firstStringifierToMark(0)
    , markStack(jsArrayVPtr)
    , cachedUTCOffset(NaN)
    , maxReentryDepth(threadStackType == ThreadStackTypeSmall ? MaxSmallThreadReentryDepth : MaxLargeThreadReentryDepth)
    , m_regExpCache(new RegExpCache(this))
#if ENABLE(REGEXP_TRACING)
    , m_rtTraceList(new RTTraceList())
#endif
#ifndef NDEBUG
    , exclusiveThread(0)
#endif
{
#if PLATFORM(MAC)
    startProfilerServerIfNeeded();
#endif
#if ENABLE(JIT) && ENABLE(INTERPRETER)
#if PLATFORM(CF)
    CFStringRef canUseJITKey = CFStringCreateWithCString(0 , "JavaScriptCoreUseJIT", kCFStringEncodingMacRoman);
    CFBooleanRef canUseJIT = (CFBooleanRef)CFPreferencesCopyAppValue(canUseJITKey, kCFPreferencesCurrentApplication);
    if (canUseJIT) {
        m_canUseJIT = kCFBooleanTrue == canUseJIT;
        CFRelease(canUseJIT);
    } else
        m_canUseJIT = !getenv("JavaScriptCoreUseJIT");
    CFRelease(canUseJITKey);
#elif OS(UNIX)
    m_canUseJIT = !getenv("JavaScriptCoreUseJIT");
#else
    m_canUseJIT = true;
#endif
#endif
#if ENABLE(JIT)
#if ENABLE(INTERPRETER)
    if (m_canUseJIT)
        m_canUseJIT = executableAllocator.isValid();
#endif
    jitStubs = new JITThunks(this);
#endif
}