JavaScriptCore-7600.1.4.16.1.tar.gz

[apple/javascriptcore.git] / runtime / JSGlobalObject.h

diff --git a/runtime/JSGlobalObject.h b/runtime/JSGlobalObject.h
index 6b9429abca97b02d2f5e620c79600a6e4b9bb08b..7bdcb72ac56f764bae4ba717f9d610b18a5ea581 100644 (file)
--- a/runtime/JSGlobalObject.h
+++ b/runtime/JSGlobalObject.h
@@ -1,6 +1,6 @@
 /*
  *  Copyright (C) 2007 Eric Seidel <eric@webkit.org>
 /*
  *  Copyright (C) 2007 Eric Seidel <eric@webkit.org>

- *  Copyright (C) 2007, 2008, 2009 Apple Inc. All rights reserved.
+ *  Copyright (C) 2007, 2008, 2009, 2014 Apple Inc. All rights reserved.

  *
  *  This library is free software; you can redistribute it and/or
  *  modify it under the terms of the GNU Library General Public
  *
  *  This library is free software; you can redistribute it and/or
  *  modify it under the terms of the GNU Library General Public


@@ -22,472 +22,664 @@
 #ifndef JSGlobalObject_h
 #define JSGlobalObject_h
 
 #ifndef JSGlobalObject_h
 #define JSGlobalObject_h
 

+#include "ArrayAllocationProfile.h"
+#include "ConstantMode.h"

 #include "JSArray.h"
 #include "JSArray.h"

-#include "JSGlobalData.h"
-#include "JSVariableObject.h"
+#include "JSArrayBufferPrototype.h"
+#include "JSClassRef.h"
+#include "JSProxy.h"
+#include "JSSegmentedVariableObject.h"

 #include "JSWeakObjectMapRefInternal.h"
 #include "JSWeakObjectMapRefInternal.h"

-#include "NativeFunctionWrapper.h"

 #include "NumberPrototype.h"
 #include "NumberPrototype.h"

+#include "SpecialPointer.h"

 #include "StringPrototype.h"
 #include "StringPrototype.h"

+#include "StructureChain.h"
+#include "StructureRareDataInlines.h"
+#include "VM.h"
+#include "Watchpoint.h"
+#include <JavaScriptCore/JSBase.h>
+#include <array>

 #include <wtf/HashSet.h>
 #include <wtf/OwnPtr.h>
 #include <wtf/HashSet.h>
 #include <wtf/OwnPtr.h>

+#include <wtf/PassRefPtr.h>

 #include <wtf/RandomNumber.h>
 
 #include <wtf/RandomNumber.h>
 

+struct OpaqueJSClass;
+struct OpaqueJSClassContextData;
+
+namespace Inspector {
+class JSGlobalObjectInspectorController;
+}
+

 namespace JSC {
 
 namespace JSC {
 

-    class ArrayPrototype;
-    class BooleanPrototype;
-    class DatePrototype;
-    class Debugger;
-    class ErrorConstructor;
-    class FunctionPrototype;
-    class GlobalCodeBlock;
-    class GlobalEvalFunction;
-    class NativeErrorConstructor;
-    class ProgramCodeBlock;
-    class PrototypeFunction;
-    class RegExpConstructor;
-    class RegExpPrototype;
-    class RegisterFile;
-
-    struct ActivationStackNode;
-    struct HashTable;
-
-    typedef Vector<ExecState*, 16> ExecStateStack;
+class ArrayPrototype;
+class BooleanPrototype;
+class ConsoleClient;
+class Debugger;
+class ErrorConstructor;
+class ErrorPrototype;
+class EvalCodeBlock;
+class EvalExecutable;
+class FunctionCodeBlock;
+class FunctionExecutable;
+class FunctionPrototype;
+class GetterSetter;
+class GlobalCodeBlock;
+class InputCursor;
+class JSGlobalObjectDebuggable;
+class JSPromiseConstructor;
+class JSPromisePrototype;
+class JSStack;
+class LLIntOffsetsExtractor;
+class Microtask;
+class NativeErrorConstructor;
+class ObjectConstructor;
+class ProgramCodeBlock;
+class ProgramExecutable;
+class RegExpConstructor;
+class RegExpPrototype;
+class SourceCode;
+struct ActivationStackNode;
+struct HashTable;
+
+#define DEFINE_STANDARD_BUILTIN(macro, upperName, lowerName) macro(upperName, lowerName, lowerName, JS ## upperName, upperName)

     
     

-    class JSGlobalObject : public JSVariableObject {
-    protected:
-        using JSVariableObject::JSVariableObjectData;
-        typedef HashSet<RefPtr<OpaqueJSWeakObjectMap> > WeakMapSet;
-
-        struct JSGlobalObjectData : public JSVariableObjectData {
-            // We use an explicit destructor function pointer instead of a
-            // virtual destructor because we want to avoid adding a vtable
-            // pointer to this struct. Adding a vtable pointer would force the
-            // compiler to emit costly pointer fixup code when casting from
-            // JSVariableObjectData* to JSGlobalObjectData*.
-            typedef void (*Destructor)(void*);
-
-            JSGlobalObjectData(Destructor destructor)
-                : JSVariableObjectData(&symbolTable, 0)
-                , destructor(destructor)
-                , registerArraySize(0)
-                , globalScopeChain(NoScopeChain())
-                , regExpConstructor(0)
-                , errorConstructor(0)
-                , evalErrorConstructor(0)
-                , rangeErrorConstructor(0)
-                , referenceErrorConstructor(0)
-                , syntaxErrorConstructor(0)
-                , typeErrorConstructor(0)
-                , URIErrorConstructor(0)
-                , evalFunction(0)
-                , callFunction(0)
-                , applyFunction(0)
-                , objectPrototype(0)
-                , functionPrototype(0)
-                , arrayPrototype(0)
-                , booleanPrototype(0)
-                , stringPrototype(0)
-                , numberPrototype(0)
-                , datePrototype(0)
-                , regExpPrototype(0)
-                , methodCallDummy(0)
-                , weakRandom(static_cast<unsigned>(randomNumber() * (std::numeric_limits<unsigned>::max() + 1.0)))
-            {
-            }
-            
-            Destructor destructor;
-            
-            size_t registerArraySize;
-
-            JSGlobalObject* next;
-            JSGlobalObject* prev;
-
-            Debugger* debugger;
-            
-            ScopeChain globalScopeChain;
-            Register globalCallFrame[RegisterFile::CallFrameHeaderSize];
-
-            int recursion;
-
-            RegExpConstructor* regExpConstructor;
-            ErrorConstructor* errorConstructor;
-            NativeErrorConstructor* evalErrorConstructor;
-            NativeErrorConstructor* rangeErrorConstructor;
-            NativeErrorConstructor* referenceErrorConstructor;
-            NativeErrorConstructor* syntaxErrorConstructor;
-            NativeErrorConstructor* typeErrorConstructor;
-            NativeErrorConstructor* URIErrorConstructor;
-
-            GlobalEvalFunction* evalFunction;
-            NativeFunctionWrapper* callFunction;
-            NativeFunctionWrapper* applyFunction;
-
-            ObjectPrototype* objectPrototype;
-            FunctionPrototype* functionPrototype;
-            ArrayPrototype* arrayPrototype;
-            BooleanPrototype* booleanPrototype;
-            StringPrototype* stringPrototype;
-            NumberPrototype* numberPrototype;
-            DatePrototype* datePrototype;
-            RegExpPrototype* regExpPrototype;
-
-            JSObject* methodCallDummy;
-
-            RefPtr<Structure> argumentsStructure;
-            RefPtr<Structure> arrayStructure;
-            RefPtr<Structure> booleanObjectStructure;
-            RefPtr<Structure> callbackConstructorStructure;
-            RefPtr<Structure> callbackFunctionStructure;
-            RefPtr<Structure> callbackObjectStructure;
-            RefPtr<Structure> dateStructure;
-            RefPtr<Structure> emptyObjectStructure;
-            RefPtr<Structure> errorStructure;
-            RefPtr<Structure> functionStructure;
-            RefPtr<Structure> numberObjectStructure;
-            RefPtr<Structure> prototypeFunctionStructure;
-            RefPtr<Structure> regExpMatchesArrayStructure;
-            RefPtr<Structure> regExpStructure;
-            RefPtr<Structure> stringObjectStructure;
-
-            SymbolTable symbolTable;
-            unsigned profileGroup;
-
-            RefPtr<JSGlobalData> globalData;
-
-            HashSet<GlobalCodeBlock*> codeBlocks;
-            WeakMapSet weakMaps;
-            WeakRandom weakRandom;
-        };
-
-    public:
-        void* operator new(size_t, JSGlobalData*);
-
-        explicit JSGlobalObject()
-            : JSVariableObject(JSGlobalObject::createStructure(jsNull()), new JSGlobalObjectData(destroyJSGlobalObjectData))
-        {
-            init(this);
-        }
+#define FOR_EACH_SIMPLE_BUILTIN_TYPE_WITH_CONSTRUCTOR(macro) \
+    macro(Set, set, set, JSSet, Set) \
+    macro(Map, map, map, JSMap, Map) \
+    macro(Date, date, date, DateInstance, Date) \
+    macro(String, string, stringObject, StringObject, String) \
+    macro(Boolean, boolean, booleanObject, BooleanObject, Boolean) \
+    macro(Number, number, numberObject, NumberObject, Number) \
+    macro(Error, error, error, ErrorInstance, Error) \
+    macro(JSArrayBuffer, arrayBuffer, arrayBuffer, JSArrayBuffer, ArrayBuffer) \
+    DEFINE_STANDARD_BUILTIN(macro, WeakMap, weakMap) \

 
 

-    protected:
-        JSGlobalObject(NonNullPassRefPtr<Structure> structure, JSGlobalObjectData* data, JSObject* thisValue)
-            : JSVariableObject(structure, data)
-        {
-            init(thisValue);
-        }
+#define FOR_EACH_SIMPLE_BUILTIN_TYPE(macro) \
+    FOR_EACH_SIMPLE_BUILTIN_TYPE_WITH_CONSTRUCTOR(macro) \
+    DEFINE_STANDARD_BUILTIN(macro, ArrayIterator, arrayIterator) \
+    DEFINE_STANDARD_BUILTIN(macro, ArgumentsIterator, argumentsIterator) \
+    DEFINE_STANDARD_BUILTIN(macro, MapIterator, mapIterator) \
+    DEFINE_STANDARD_BUILTIN(macro, SetIterator, setIterator) \

 
 

-    public:
-        virtual ~JSGlobalObject();
-
-        virtual void markChildren(MarkStack&);
-
-        virtual bool getOwnPropertySlot(ExecState*, const Identifier&, PropertySlot&);
-        virtual bool getOwnPropertyDescriptor(ExecState*, const Identifier&, PropertyDescriptor&);
-        virtual bool hasOwnPropertyForWrite(ExecState*, const Identifier&);
-        virtual void put(ExecState*, const Identifier&, JSValue, PutPropertySlot&);
-        virtual void putWithAttributes(ExecState*, const Identifier& propertyName, JSValue value, unsigned attributes);
-
-        virtual void defineGetter(ExecState*, const Identifier& propertyName, JSObject* getterFunc, unsigned attributes);
-        virtual void defineSetter(ExecState*, const Identifier& propertyName, JSObject* setterFunc, unsigned attributes);
-
-        // Linked list of all global objects that use the same JSGlobalData.
-        JSGlobalObject*& head() { return d()->globalData->head; }
-        JSGlobalObject* next() { return d()->next; }
-
-        // The following accessors return pristine values, even if a script 
-        // replaces the global object's associated property.
-
-        RegExpConstructor* regExpConstructor() const { return d()->regExpConstructor; }
-
-        ErrorConstructor* errorConstructor() const { return d()->errorConstructor; }
-        NativeErrorConstructor* evalErrorConstructor() const { return d()->evalErrorConstructor; }
-        NativeErrorConstructor* rangeErrorConstructor() const { return d()->rangeErrorConstructor; }
-        NativeErrorConstructor* referenceErrorConstructor() const { return d()->referenceErrorConstructor; }
-        NativeErrorConstructor* syntaxErrorConstructor() const { return d()->syntaxErrorConstructor; }
-        NativeErrorConstructor* typeErrorConstructor() const { return d()->typeErrorConstructor; }
-        NativeErrorConstructor* URIErrorConstructor() const { return d()->URIErrorConstructor; }
-
-        GlobalEvalFunction* evalFunction() const { return d()->evalFunction; }
-
-        ObjectPrototype* objectPrototype() const { return d()->objectPrototype; }
-        FunctionPrototype* functionPrototype() const { return d()->functionPrototype; }
-        ArrayPrototype* arrayPrototype() const { return d()->arrayPrototype; }
-        BooleanPrototype* booleanPrototype() const { return d()->booleanPrototype; }
-        StringPrototype* stringPrototype() const { return d()->stringPrototype; }
-        NumberPrototype* numberPrototype() const { return d()->numberPrototype; }
-        DatePrototype* datePrototype() const { return d()->datePrototype; }
-        RegExpPrototype* regExpPrototype() const { return d()->regExpPrototype; }
-
-        JSObject* methodCallDummy() const { return d()->methodCallDummy; }
-
-        Structure* argumentsStructure() const { return d()->argumentsStructure.get(); }
-        Structure* arrayStructure() const { return d()->arrayStructure.get(); }
-        Structure* booleanObjectStructure() const { return d()->booleanObjectStructure.get(); }
-        Structure* callbackConstructorStructure() const { return d()->callbackConstructorStructure.get(); }
-        Structure* callbackFunctionStructure() const { return d()->callbackFunctionStructure.get(); }
-        Structure* callbackObjectStructure() const { return d()->callbackObjectStructure.get(); }
-        Structure* dateStructure() const { return d()->dateStructure.get(); }
-        Structure* emptyObjectStructure() const { return d()->emptyObjectStructure.get(); }
-        Structure* errorStructure() const { return d()->errorStructure.get(); }
-        Structure* functionStructure() const { return d()->functionStructure.get(); }
-        Structure* numberObjectStructure() const { return d()->numberObjectStructure.get(); }
-        Structure* prototypeFunctionStructure() const { return d()->prototypeFunctionStructure.get(); }
-        Structure* regExpMatchesArrayStructure() const { return d()->regExpMatchesArrayStructure.get(); }
-        Structure* regExpStructure() const { return d()->regExpStructure.get(); }
-        Structure* stringObjectStructure() const { return d()->stringObjectStructure.get(); }
-
-        void setProfileGroup(unsigned value) { d()->profileGroup = value; }
-        unsigned profileGroup() const { return d()->profileGroup; }
-
-        Debugger* debugger() const { return d()->debugger; }
-        void setDebugger(Debugger* debugger) { d()->debugger = debugger; }
-        
-        virtual bool supportsProfiling() const { return false; }
-        
-        int recursion() { return d()->recursion; }
-        void incRecursion() { ++d()->recursion; }
-        void decRecursion() { --d()->recursion; }
-        
-        ScopeChain& globalScopeChain() { return d()->globalScopeChain; }

 
 

-        virtual bool isGlobalObject() const { return true; }
+#define DECLARE_SIMPLE_BUILTIN_TYPE(capitalName, lowerName, properName, instanceType, jsName) \
+    class JS ## capitalName; \
+    class capitalName ## Prototype; \
+    class capitalName ## Constructor;

 
 

-        virtual ExecState* globalExec();
+FOR_EACH_SIMPLE_BUILTIN_TYPE(DECLARE_SIMPLE_BUILTIN_TYPE)

 
 

-        virtual bool shouldInterruptScriptBeforeTimeout() const { return false; }
-        virtual bool shouldInterruptScript() const { return true; }
+#undef DECLARE_SIMPLE_BUILTIN_TYPE

 
 

-        virtual bool allowsAccessFrom(const JSGlobalObject*) const { return true; }
+typedef Vector<ExecState*, 16> ExecStateStack;

 
 

-        virtual bool isDynamicScope(bool& requiresDynamicChecks) const;
+struct GlobalObjectMethodTable {
+    typedef bool (*AllowsAccessFromFunctionPtr)(const JSGlobalObject*, ExecState*);
+    AllowsAccessFromFunctionPtr allowsAccessFrom;

 
 

-        HashSet<GlobalCodeBlock*>& codeBlocks() { return d()->codeBlocks; }
+    typedef bool (*SupportsProfilingFunctionPtr)(const JSGlobalObject*); 
+    SupportsProfilingFunctionPtr supportsProfiling;

 
 

-        void copyGlobalsFrom(RegisterFile&);
-        void copyGlobalsTo(RegisterFile&);
-        
-        void resetPrototype(JSValue prototype);
+    typedef bool (*SupportsRichSourceInfoFunctionPtr)(const JSGlobalObject*);
+    SupportsRichSourceInfoFunctionPtr supportsRichSourceInfo;

 
 

-        JSGlobalData* globalData() { return d()->globalData.get(); }
-        JSGlobalObjectData* d() const { return static_cast<JSGlobalObjectData*>(JSVariableObject::d); }
+    typedef bool (*ShouldInterruptScriptFunctionPtr)(const JSGlobalObject*);
+    ShouldInterruptScriptFunctionPtr shouldInterruptScript;

 
 

-        static PassRefPtr<Structure> createStructure(JSValue prototype)
-        {
-            return Structure::create(prototype, TypeInfo(ObjectType, StructureFlags), AnonymousSlotCount);
-        }
+    typedef bool (*JavaScriptExperimentsEnabledFunctionPtr)(const JSGlobalObject*);
+    JavaScriptExperimentsEnabledFunctionPtr javaScriptExperimentsEnabled;

 
 

-        void registerWeakMap(OpaqueJSWeakObjectMap* map)
-        {
-            d()->weakMaps.add(map);
-        }
+    typedef void (*QueueTaskToEventLoopFunctionPtr)(const JSGlobalObject*, PassRefPtr<Microtask>);
+    QueueTaskToEventLoopFunctionPtr queueTaskToEventLoop;
+
+    typedef bool (*ShouldInterruptScriptBeforeTimeoutPtr)(const JSGlobalObject*);
+    ShouldInterruptScriptBeforeTimeoutPtr shouldInterruptScriptBeforeTimeout;
+};

 
 

-        void deregisterWeakMap(OpaqueJSWeakObjectMap* map)
+class JSGlobalObject : public JSSegmentedVariableObject {
+private:
+    typedef HashSet<RefPtr<OpaqueJSWeakObjectMap>> WeakMapSet;
+    typedef HashMap<OpaqueJSClass*, std::unique_ptr<OpaqueJSClassContextData>> OpaqueJSClassDataMap;
+
+    struct JSGlobalObjectRareData {
+        JSGlobalObjectRareData()
+            : profileGroup(0)

         {
         {

-            d()->weakMaps.remove(map);

         }
 
         }
 

-        double weakRandomNumber() { return d()->weakRandom.get(); }
-    protected:
+        WeakMapSet weakMaps;
+        unsigned profileGroup;
+        
+        OpaqueJSClassDataMap opaqueJSClassData;
+    };

 
 

-        static const unsigned StructureFlags = OverridesGetOwnPropertySlot | OverridesMarkChildren | OverridesGetPropertyNames | JSVariableObject::StructureFlags;
+protected:
+    Register m_globalCallFrame[JSStack::CallFrameHeaderSize];
+
+    WriteBarrier<JSObject> m_globalThis;
+
+    WriteBarrier<RegExpConstructor> m_regExpConstructor;
+    WriteBarrier<ErrorConstructor> m_errorConstructor;
+    WriteBarrier<NativeErrorConstructor> m_evalErrorConstructor;
+    WriteBarrier<NativeErrorConstructor> m_rangeErrorConstructor;
+    WriteBarrier<NativeErrorConstructor> m_referenceErrorConstructor;
+    WriteBarrier<NativeErrorConstructor> m_syntaxErrorConstructor;
+    WriteBarrier<NativeErrorConstructor> m_typeErrorConstructor;
+    WriteBarrier<NativeErrorConstructor> m_URIErrorConstructor;
+#if ENABLE(PROMISES)
+    WriteBarrier<JSPromiseConstructor> m_promiseConstructor;
+#endif
+    WriteBarrier<ObjectConstructor> m_objectConstructor;
+
+    WriteBarrier<JSFunction> m_evalFunction;
+    WriteBarrier<JSFunction> m_callFunction;
+    WriteBarrier<JSFunction> m_applyFunction;
+    WriteBarrier<GetterSetter> m_throwTypeErrorGetterSetter;
+
+    WriteBarrier<ObjectPrototype> m_objectPrototype;
+    WriteBarrier<FunctionPrototype> m_functionPrototype;
+    WriteBarrier<ArrayPrototype> m_arrayPrototype;
+    WriteBarrier<RegExpPrototype> m_regExpPrototype;
+#if ENABLE(PROMISES)
+    WriteBarrier<JSPromisePrototype> m_promisePrototype;
+#endif

 
 

-        struct GlobalPropertyInfo {
-            GlobalPropertyInfo(const Identifier& i, JSValue v, unsigned a)
-                : identifier(i)
-                , value(v)
-                , attributes(a)
-            {
-            }
+    WriteBarrier<Structure> m_withScopeStructure;
+    WriteBarrier<Structure> m_strictEvalActivationStructure;
+    WriteBarrier<Structure> m_activationStructure;
+    WriteBarrier<Structure> m_nameScopeStructure;
+    WriteBarrier<Structure> m_argumentsStructure;
+        
+    // Lists the actual structures used for having these particular indexing shapes.
+    WriteBarrier<Structure> m_originalArrayStructureForIndexingShape[NumberOfIndexingShapes];
+    // Lists the structures we should use during allocation for these particular indexing shapes.
+    WriteBarrier<Structure> m_arrayStructureForIndexingShapeDuringAllocation[NumberOfIndexingShapes];
+
+    WriteBarrier<Structure> m_callbackConstructorStructure;
+    WriteBarrier<Structure> m_callbackFunctionStructure;
+    WriteBarrier<Structure> m_callbackObjectStructure;
+#if JSC_OBJC_API_ENABLED
+    WriteBarrier<Structure> m_objcCallbackFunctionStructure;
+    WriteBarrier<Structure> m_objcWrapperObjectStructure;
+#endif
+    WriteBarrier<Structure> m_nullPrototypeObjectStructure;
+    WriteBarrier<Structure> m_functionStructure;
+    WriteBarrier<Structure> m_boundFunctionStructure;
+    WriteBarrier<Structure> m_namedFunctionStructure;
+    PropertyOffset m_functionNameOffset;
+    WriteBarrier<Structure> m_privateNameStructure;
+    WriteBarrier<Structure> m_regExpMatchesArrayStructure;
+    WriteBarrier<Structure> m_regExpStructure;
+    WriteBarrier<Structure> m_consoleStructure;
+    WriteBarrier<Structure> m_internalFunctionStructure;
+    
+    WriteBarrier<Structure> m_iteratorResultStructure;

 
 

-            const Identifier identifier;
-            JSValue value;
-            unsigned attributes;
-        };
-        void addStaticGlobals(GlobalPropertyInfo*, int count);
+#if ENABLE(PROMISES)
+    WriteBarrier<Structure> m_promiseStructure;
+#endif // ENABLE(PROMISES)

 
 

-    private:
-        static void destroyJSGlobalObjectData(void*);
+#define DEFINE_STORAGE_FOR_SIMPLE_TYPE(capitalName, lowerName, properName, instanceType, jsName) \
+    WriteBarrier<capitalName ## Prototype> m_ ## lowerName ## Prototype; \
+    WriteBarrier<Structure> m_ ## properName ## Structure;

 
 

-        // FIXME: Fold reset into init.
-        void init(JSObject* thisValue);
-        void reset(JSValue prototype);
+    FOR_EACH_SIMPLE_BUILTIN_TYPE(DEFINE_STORAGE_FOR_SIMPLE_TYPE)

 
 

-        void setRegisters(Register* registers, Register* registerArray, size_t count);
+#undef DEFINE_STORAGE_FOR_SIMPLE_TYPE

 
 

-        void* operator new(size_t); // can only be allocated with JSGlobalData
+    struct TypedArrayData {
+        WriteBarrier<JSObject> prototype;
+        WriteBarrier<Structure> structure;

     };
     };

+    
+    std::array<TypedArrayData, NUMBER_OF_TYPED_ARRAY_TYPES> m_typedArrays;
+        
+    void* m_specialPointers[Special::TableSize]; // Special pointers used by the LLInt and JIT.
+
+    String m_name;
+
+    Debugger* m_debugger;
+
+    VM& m_vm;
+
+#if ENABLE(WEB_REPLAY)
+    RefPtr<InputCursor> m_inputCursor;
+#endif
+
+#if ENABLE(REMOTE_INSPECTOR)
+    std::unique_ptr<Inspector::JSGlobalObjectInspectorController> m_inspectorController;
+    std::unique_ptr<JSGlobalObjectDebuggable> m_inspectorDebuggable;
+#endif
+
+    RefPtr<WatchpointSet> m_masqueradesAsUndefinedWatchpoint;
+    RefPtr<WatchpointSet> m_havingABadTimeWatchpoint;
+    RefPtr<WatchpointSet> m_varInjectionWatchpoint;
+
+    OwnPtr<JSGlobalObjectRareData> m_rareData;
+
+    WeakRandom m_weakRandom;
+
+    bool m_evalEnabled;
+    String m_evalDisabledErrorMessage;
+    bool m_experimentsEnabled;
+    ConsoleClient* m_consoleClient;

 
 

-    JSGlobalObject* asGlobalObject(JSValue);
+    static JS_EXPORTDATA const GlobalObjectMethodTable s_globalObjectMethodTable;
+    const GlobalObjectMethodTable* m_globalObjectMethodTable;

 
 

-    inline JSGlobalObject* asGlobalObject(JSValue value)
+    void createRareDataIfNeeded()

     {
     {

-        ASSERT(asObject(value)->isGlobalObject());
-        return static_cast<JSGlobalObject*>(asObject(value));
+        if (m_rareData)
+            return;
+        m_rareData = adoptPtr(new JSGlobalObjectRareData);

     }
     }

+        
+public:
+    typedef JSSegmentedVariableObject Base;

 
 

-    inline void JSGlobalObject::setRegisters(Register* registers, Register* registerArray, size_t count)
+    static JSGlobalObject* create(VM& vm, Structure* structure)

     {
     {

-        JSVariableObject::setRegisters(registers, registerArray);
-        d()->registerArraySize = count;
+        JSGlobalObject* globalObject = new (NotNull, allocateCell<JSGlobalObject>(vm.heap)) JSGlobalObject(vm, structure);
+        globalObject->finishCreation(vm);
+        vm.heap.addFinalizer(globalObject, destroy);
+        return globalObject;

     }
 
     }
 

-    inline void JSGlobalObject::addStaticGlobals(GlobalPropertyInfo* globals, int count)
+    DECLARE_EXPORT_INFO;
+
+    bool hasDebugger() const { return m_debugger; }
+    bool hasProfiler() const { return globalObjectMethodTable()->supportsProfiling(this); }
+
+protected:
+    JS_EXPORT_PRIVATE explicit JSGlobalObject(VM&, Structure*, const GlobalObjectMethodTable* = 0);
+
+    void finishCreation(VM& vm)

     {
     {

-        size_t oldSize = d()->registerArraySize;
-        size_t newSize = oldSize + count;
-        Register* registerArray = new Register[newSize];
-        if (d()->registerArray)
-            memcpy(registerArray + count, d()->registerArray.get(), oldSize * sizeof(Register));
-        setRegisters(registerArray + newSize, registerArray, newSize);
-
-        for (int i = 0, index = -static_cast<int>(oldSize) - 1; i < count; ++i, --index) {
-            GlobalPropertyInfo& global = globals[i];
-            ASSERT(global.attributes & DontDelete);
-            SymbolTableEntry newEntry(index, global.attributes);
-            symbolTable().add(global.identifier.ustring().rep(), newEntry);
-            registerAt(index) = global.value;
-        }
+        Base::finishCreation(vm);
+        structure()->setGlobalObject(vm, this);
+        m_experimentsEnabled = m_globalObjectMethodTable->javaScriptExperimentsEnabled(this);
+        init();
+        setGlobalThis(vm, JSProxy::create(vm, JSProxy::createStructure(vm, this, prototype(), PureForwardingProxyType), this));

     }
 
     }
 

-    inline bool JSGlobalObject::getOwnPropertySlot(ExecState* exec, const Identifier& propertyName, PropertySlot& slot)
+    void finishCreation(VM& vm, JSObject* thisValue)

     {
     {

-        if (JSVariableObject::getOwnPropertySlot(exec, propertyName, slot))
-            return true;
-        return symbolTableGet(propertyName, slot);
+        Base::finishCreation(vm);
+        structure()->setGlobalObject(vm, this);
+        m_experimentsEnabled = m_globalObjectMethodTable->javaScriptExperimentsEnabled(this);
+        init();
+        setGlobalThis(vm, thisValue);

     }
 
     }
 

-    inline bool JSGlobalObject::getOwnPropertyDescriptor(ExecState* exec, const Identifier& propertyName, PropertyDescriptor& descriptor)
+    struct NewGlobalVar {
+        int registerNumber;
+        VariableWatchpointSet* set;
+    };
+    NewGlobalVar addGlobalVar(const Identifier&, ConstantMode);
+
+public:
+    JS_EXPORT_PRIVATE ~JSGlobalObject();
+    JS_EXPORT_PRIVATE static void destroy(JSCell*);
+    // We don't need a destructor because we use a finalizer instead.
+    static const bool needsDestruction = false;
+
+    JS_EXPORT_PRIVATE static void visitChildren(JSCell*, SlotVisitor&);
+
+    JS_EXPORT_PRIVATE static bool getOwnPropertySlot(JSObject*, ExecState*, PropertyName, PropertySlot&);
+    bool hasOwnPropertyForWrite(ExecState*, PropertyName);
+    JS_EXPORT_PRIVATE static void put(JSCell*, ExecState*, PropertyName, JSValue, PutPropertySlot&);
+
+    JS_EXPORT_PRIVATE static void defineGetter(JSObject*, ExecState*, PropertyName, JSObject* getterFunc, unsigned attributes);
+    JS_EXPORT_PRIVATE static void defineSetter(JSObject*, ExecState*, PropertyName, JSObject* setterFunc, unsigned attributes);
+    JS_EXPORT_PRIVATE static bool defineOwnProperty(JSObject*, ExecState*, PropertyName, const PropertyDescriptor&, bool shouldThrow);
+
+    // We use this in the code generator as we perform symbol table
+    // lookups prior to initializing the properties
+    bool symbolTableHasProperty(PropertyName);
+
+    void addVar(ExecState* exec, const Identifier& propertyName)

     {
     {

-        if (symbolTableGet(propertyName, descriptor))
-            return true;
-        return JSVariableObject::getOwnPropertyDescriptor(exec, propertyName, descriptor);
+        if (!hasProperty(exec, propertyName))
+            addGlobalVar(propertyName, IsVariable);

     }
     }

-
-    inline bool JSGlobalObject::hasOwnPropertyForWrite(ExecState* exec, const Identifier& propertyName)
+    void addConst(ExecState* exec, const Identifier& propertyName)

     {
     {

-        PropertySlot slot;
-        if (JSVariableObject::getOwnPropertySlot(exec, propertyName, slot))
-            return true;
-        bool slotIsWriteable;
-        return symbolTableGet(propertyName, slot, slotIsWriteable);
+        if (!hasProperty(exec, propertyName))
+            addGlobalVar(propertyName, IsConstant);

     }
     }

+    void addFunction(ExecState*, const Identifier&, JSValue);
+
+    // The following accessors return pristine values, even if a script 
+    // replaces the global object's associated property.
+
+    RegExpConstructor* regExpConstructor() const { return m_regExpConstructor.get(); }
+
+    ErrorConstructor* errorConstructor() const { return m_errorConstructor.get(); }
+    ObjectConstructor* objectConstructor() const { return m_objectConstructor.get(); }
+    NativeErrorConstructor* evalErrorConstructor() const { return m_evalErrorConstructor.get(); }
+    NativeErrorConstructor* rangeErrorConstructor() const { return m_rangeErrorConstructor.get(); }
+    NativeErrorConstructor* referenceErrorConstructor() const { return m_referenceErrorConstructor.get(); }
+    NativeErrorConstructor* syntaxErrorConstructor() const { return m_syntaxErrorConstructor.get(); }
+    NativeErrorConstructor* typeErrorConstructor() const { return m_typeErrorConstructor.get(); }
+    NativeErrorConstructor* URIErrorConstructor() const { return m_URIErrorConstructor.get(); }
+#if ENABLE(PROMISES)
+    JSPromiseConstructor* promiseConstructor() const { return m_promiseConstructor.get(); }
+#endif

 
 

-    inline JSValue Structure::prototypeForLookup(ExecState* exec) const
+    JSFunction* evalFunction() const { return m_evalFunction.get(); }
+    JSFunction* callFunction() const { return m_callFunction.get(); }
+    JSFunction* applyFunction() const { return m_applyFunction.get(); }
+    GetterSetter* throwTypeErrorGetterSetter(VM& vm)

     {
     {

-        if (typeInfo().type() == ObjectType)
-            return m_prototype;
-
-#if USE(JSVALUE32)
-        if (typeInfo().type() == StringType)
-            return exec->lexicalGlobalObject()->stringPrototype();
-
-        ASSERT(typeInfo().type() == NumberType);
-        return exec->lexicalGlobalObject()->numberPrototype();
-#else
-        ASSERT(typeInfo().type() == StringType);
-        return exec->lexicalGlobalObject()->stringPrototype();
-#endif
+        if (!m_throwTypeErrorGetterSetter)
+            createThrowTypeError(vm);
+        return m_throwTypeErrorGetterSetter.get();

     }
 
     }
 

-    inline StructureChain* Structure::prototypeChain(ExecState* exec) const
+    ObjectPrototype* objectPrototype() const { return m_objectPrototype.get(); }
+    FunctionPrototype* functionPrototype() const { return m_functionPrototype.get(); }
+    ArrayPrototype* arrayPrototype() const { return m_arrayPrototype.get(); }
+    BooleanPrototype* booleanPrototype() const { return m_booleanPrototype.get(); }
+    StringPrototype* stringPrototype() const { return m_stringPrototype.get(); }
+    NumberPrototype* numberPrototype() const { return m_numberPrototype.get(); }
+    DatePrototype* datePrototype() const { return m_datePrototype.get(); }
+    RegExpPrototype* regExpPrototype() const { return m_regExpPrototype.get(); }
+    ErrorPrototype* errorPrototype() const { return m_errorPrototype.get(); }
+#if ENABLE(PROMISES)
+    JSPromisePrototype* promisePrototype() const { return m_promisePrototype.get(); }
+#endif
+
+    Structure* withScopeStructure() const { return m_withScopeStructure.get(); }
+    Structure* strictEvalActivationStructure() const { return m_strictEvalActivationStructure.get(); }
+    Structure* activationStructure() const { return m_activationStructure.get(); }
+    Structure* nameScopeStructure() const { return m_nameScopeStructure.get(); }
+    Structure* argumentsStructure() const { return m_argumentsStructure.get(); }
+    Structure* originalArrayStructureForIndexingType(IndexingType indexingType) const

     {
     {

-        // We cache our prototype chain so our clients can share it.
-        if (!isValid(exec, m_cachedPrototypeChain.get())) {
-            JSValue prototype = prototypeForLookup(exec);
-            m_cachedPrototypeChain = StructureChain::create(prototype.isNull() ? 0 : asObject(prototype)->structure());
-        }
-        return m_cachedPrototypeChain.get();
+        ASSERT(indexingType & IsArray);
+        return m_originalArrayStructureForIndexingShape[(indexingType & IndexingShapeMask) >> IndexingShapeShift].get();
+    }
+    Structure* arrayStructureForIndexingTypeDuringAllocation(IndexingType indexingType) const
+    {
+        ASSERT(indexingType & IsArray);
+        return m_arrayStructureForIndexingShapeDuringAllocation[(indexingType & IndexingShapeMask) >> IndexingShapeShift].get();
+    }
+    Structure* arrayStructureForProfileDuringAllocation(ArrayAllocationProfile* profile) const
+    {
+        return arrayStructureForIndexingTypeDuringAllocation(ArrayAllocationProfile::selectIndexingTypeFor(profile));
+    }
+        
+    bool isOriginalArrayStructure(Structure* structure)
+    {
+        return originalArrayStructureForIndexingType(structure->indexingType() | IsArray) == structure;

     }
     }

+        
+    Structure* booleanObjectStructure() const { return m_booleanObjectStructure.get(); }
+    Structure* callbackConstructorStructure() const { return m_callbackConstructorStructure.get(); }
+    Structure* callbackFunctionStructure() const { return m_callbackFunctionStructure.get(); }
+    Structure* callbackObjectStructure() const { return m_callbackObjectStructure.get(); }
+#if JSC_OBJC_API_ENABLED
+    Structure* objcCallbackFunctionStructure() const { return m_objcCallbackFunctionStructure.get(); }
+    Structure* objcWrapperObjectStructure() const { return m_objcWrapperObjectStructure.get(); }
+#endif
+    Structure* dateStructure() const { return m_dateStructure.get(); }
+    Structure* nullPrototypeObjectStructure() const { return m_nullPrototypeObjectStructure.get(); }
+    Structure* errorStructure() const { return m_errorStructure.get(); }
+    Structure* functionStructure() const { return m_functionStructure.get(); }
+    Structure* boundFunctionStructure() const { return m_boundFunctionStructure.get(); }
+    Structure* namedFunctionStructure() const { return m_namedFunctionStructure.get(); }
+    PropertyOffset functionNameOffset() const { return m_functionNameOffset; }
+    Structure* numberObjectStructure() const { return m_numberObjectStructure.get(); }
+    Structure* privateNameStructure() const { return m_privateNameStructure.get(); }
+    Structure* internalFunctionStructure() const { return m_internalFunctionStructure.get(); }
+    Structure* mapStructure() const { return m_mapStructure.get(); }
+    Structure* regExpMatchesArrayStructure() const { return m_regExpMatchesArrayStructure.get(); }
+    Structure* regExpStructure() const { return m_regExpStructure.get(); }
+    Structure* setStructure() const { return m_setStructure.get(); }
+    Structure* stringObjectStructure() const { return m_stringObjectStructure.get(); }
+    Structure* iteratorResultStructure() const { return m_iteratorResultStructure.get(); }
+    static ptrdiff_t iteratorResultStructureOffset() { return OBJECT_OFFSETOF(JSGlobalObject, m_iteratorResultStructure); }
+
+#if ENABLE(PROMISES)
+    Structure* promiseStructure() const { return m_promiseStructure.get(); }
+#endif // ENABLE(PROMISES)
+
+    JS_EXPORT_PRIVATE void setRemoteDebuggingEnabled(bool);
+    JS_EXPORT_PRIVATE bool remoteDebuggingEnabled() const;
+
+#if ENABLE(WEB_REPLAY)
+    JS_EXPORT_PRIVATE void setInputCursor(PassRefPtr<InputCursor>);
+    InputCursor& inputCursor() const { return *m_inputCursor; }
+#endif
+
+#if ENABLE(REMOTE_INSPECTOR)
+    Inspector::JSGlobalObjectInspectorController& inspectorController() const { return *m_inspectorController.get(); }
+    JSGlobalObjectDebuggable& inspectorDebuggable() { return *m_inspectorDebuggable.get(); }
+#endif
+
+    JS_EXPORT_PRIVATE void setConsoleClient(ConsoleClient* consoleClient) { m_consoleClient = consoleClient; }
+    ConsoleClient* consoleClient() const { return m_consoleClient; }
+
+    void setName(const String&);
+    const String& name() const { return m_name; }
+
+    JSArrayBufferPrototype* arrayBufferPrototype() const { return m_arrayBufferPrototype.get(); }
+
+#define DEFINE_ACCESSORS_FOR_SIMPLE_TYPE(capitalName, lowerName, properName, instanceType, jsName) \
+    Structure* properName ## Structure() { return m_ ## properName ## Structure.get(); }
+
+    FOR_EACH_SIMPLE_BUILTIN_TYPE(DEFINE_ACCESSORS_FOR_SIMPLE_TYPE)
+
+#undef DEFINE_ACCESSORS_FOR_SIMPLE_TYPE

 
 

-    inline bool Structure::isValid(ExecState* exec, StructureChain* cachedPrototypeChain) const
+    Structure* typedArrayStructure(TypedArrayType type) const

     {
     {

-        if (!cachedPrototypeChain)
+        return m_typedArrays[toIndex(type)].structure.get();
+    }
+    bool isOriginalTypedArrayStructure(Structure* structure)
+    {
+        TypedArrayType type = structure->classInfo()->typedArrayStorageType;
+        if (type == NotTypedArray)

             return false;
             return false;

-
-        JSValue prototype = prototypeForLookup(exec);
-        RefPtr<Structure>* cachedStructure = cachedPrototypeChain->head();
-        while(*cachedStructure && !prototype.isNull()) {
-            if (asObject(prototype)->structure() != *cachedStructure)
-                return false;
-            ++cachedStructure;
-            prototype = asObject(prototype)->prototype();
-        }
-        return prototype.isNull() && !*cachedStructure;
+        return typedArrayStructure(type) == structure;

     }
 
     }
 

-    inline JSGlobalObject* ExecState::dynamicGlobalObject()
+    void* actualPointerFor(Special::Pointer pointer)

     {
     {

-        if (this == lexicalGlobalObject()->globalExec())
-            return lexicalGlobalObject();
-
-        // For any ExecState that's not a globalExec, the 
-        // dynamic global object must be set since code is running
-        ASSERT(globalData().dynamicGlobalObject);
-        return globalData().dynamicGlobalObject;
+        ASSERT(pointer < Special::TableSize);
+        return m_specialPointers[pointer];

     }
 
     }
 

-    inline JSObject* constructEmptyObject(ExecState* exec)
+    WatchpointSet* masqueradesAsUndefinedWatchpoint() { return m_masqueradesAsUndefinedWatchpoint.get(); }
+    WatchpointSet* havingABadTimeWatchpoint() { return m_havingABadTimeWatchpoint.get(); }
+    WatchpointSet* varInjectionWatchpoint() { return m_varInjectionWatchpoint.get(); }
+        
+    bool isHavingABadTime() const

     {
     {

-        return new (exec) JSObject(exec->lexicalGlobalObject()->emptyObjectStructure());
+        return m_havingABadTimeWatchpoint->hasBeenInvalidated();

     }
     }

-    
-    inline JSObject* constructEmptyObject(ExecState* exec, JSGlobalObject* globalObject)
-    {
-        return new (exec) JSObject(globalObject->emptyObjectStructure());
+        
+    void haveABadTime(VM&);
+        
+    bool objectPrototypeIsSane();
+    bool arrayPrototypeChainIsSane();
+    bool stringPrototypeChainIsSane();
+
+    void setProfileGroup(unsigned value) { createRareDataIfNeeded(); m_rareData->profileGroup = value; }
+    unsigned profileGroup() const
+    { 
+        if (!m_rareData)
+            return 0;
+        return m_rareData->profileGroup;

     }
 
     }
 

-    inline JSArray* constructEmptyArray(ExecState* exec)
+    Debugger* debugger() const { return m_debugger; }
+    void setDebugger(Debugger* debugger) { m_debugger = debugger; }
+
+    const GlobalObjectMethodTable* globalObjectMethodTable() const { return m_globalObjectMethodTable; }
+
+    static bool allowsAccessFrom(const JSGlobalObject*, ExecState*) { return true; }
+    static bool supportsProfiling(const JSGlobalObject*) { return false; }
+    static bool supportsRichSourceInfo(const JSGlobalObject*) { return true; }
+
+    JS_EXPORT_PRIVATE ExecState* globalExec();
+
+    static bool shouldInterruptScript(const JSGlobalObject*) { return true; }
+    static bool shouldInterruptScriptBeforeTimeout(const JSGlobalObject*) { return false; }
+    static bool javaScriptExperimentsEnabled(const JSGlobalObject*) { return false; }
+
+    void queueMicrotask(PassRefPtr<Microtask>);
+
+    bool evalEnabled() const { return m_evalEnabled; }
+    const String& evalDisabledErrorMessage() const { return m_evalDisabledErrorMessage; }
+    void setEvalEnabled(bool enabled, const String& errorMessage = String())

     {
     {

-        return new (exec) JSArray(exec->lexicalGlobalObject()->arrayStructure());
+        m_evalEnabled = enabled;
+        m_evalDisabledErrorMessage = errorMessage;

     }
     }

-    
-    inline JSArray* constructEmptyArray(ExecState* exec, JSGlobalObject* globalObject)
+
+    void resetPrototype(VM&, JSValue prototype);
+
+    VM& vm() const { return m_vm; }
+    JSObject* globalThis() const;
+
+    static Structure* createStructure(VM& vm, JSValue prototype)

     {
     {

-        return new (exec) JSArray(globalObject->arrayStructure());
+        return Structure::create(vm, 0, prototype, TypeInfo(GlobalObjectType, StructureFlags), info());

     }
 
     }
 

-    inline JSArray* constructEmptyArray(ExecState* exec, unsigned initialLength)
+    void registerWeakMap(OpaqueJSWeakObjectMap* map)

     {
     {

-        return new (exec) JSArray(exec->lexicalGlobalObject()->arrayStructure(), initialLength);
+        createRareDataIfNeeded();
+        m_rareData->weakMaps.add(map);

     }
 
     }
 

-    inline JSArray* constructArray(ExecState* exec, JSValue singleItemValue)
+    void unregisterWeakMap(OpaqueJSWeakObjectMap* map)

     {
     {

-        MarkedArgumentBuffer values;
-        values.append(singleItemValue);
-        return new (exec) JSArray(exec->lexicalGlobalObject()->arrayStructure(), values);
+        if (m_rareData)
+            m_rareData->weakMaps.remove(map);

     }
 
     }
 

-    inline JSArray* constructArray(ExecState* exec, const ArgList& values)
+    OpaqueJSClassDataMap& opaqueJSClassData()

     {
     {

-        return new (exec) JSArray(exec->lexicalGlobalObject()->arrayStructure(), values);
+        createRareDataIfNeeded();
+        return m_rareData->opaqueJSClassData;

     }
 
     }
 

-    class DynamicGlobalObjectScope : public Noncopyable {
-    public:
-        DynamicGlobalObjectScope(CallFrame* callFrame, JSGlobalObject* dynamicGlobalObject) 
-            : m_dynamicGlobalObjectSlot(callFrame->globalData().dynamicGlobalObject)
-            , m_savedDynamicGlobalObject(m_dynamicGlobalObjectSlot)
-        {
-            if (!m_dynamicGlobalObjectSlot) {
-                m_dynamicGlobalObjectSlot = dynamicGlobalObject;
+    double weakRandomNumber() { return m_weakRandom.get(); }
+    unsigned weakRandomInteger() { return m_weakRandom.getUint32(); }

 
 

-                // Reset the date cache between JS invocations to force the VM
-                // to observe time zone changes.
-                callFrame->globalData().resetDateCache();
-            }
-        }
+    UnlinkedProgramCodeBlock* createProgramCodeBlock(CallFrame*, ProgramExecutable*, JSObject** exception);
+    UnlinkedEvalCodeBlock* createEvalCodeBlock(CallFrame*, EvalExecutable*);
+
+protected:
+
+    static const unsigned StructureFlags = OverridesGetOwnPropertySlot | OverridesVisitChildren | OverridesGetPropertyNames | Base::StructureFlags;

 
 

-        ~DynamicGlobalObjectScope()
+    struct GlobalPropertyInfo {
+        GlobalPropertyInfo(const Identifier& i, JSValue v, unsigned a)
+            : identifier(i)
+            , value(v)
+            , attributes(a)

         {
         {

-            m_dynamicGlobalObjectSlot = m_savedDynamicGlobalObject;

         }
 
         }
 

-    private:
-        JSGlobalObject*& m_dynamicGlobalObjectSlot;
-        JSGlobalObject* m_savedDynamicGlobalObject;
+        const Identifier identifier;
+        JSValue value;
+        unsigned attributes;

     };
     };

+    JS_EXPORT_PRIVATE void addStaticGlobals(GlobalPropertyInfo*, int count);
+
+    JS_EXPORT_PRIVATE static JSC::JSValue toThis(JSC::JSCell*, JSC::ExecState*, ECMAMode);
+
+private:
+    friend class LLIntOffsetsExtractor;
+
+    JS_EXPORT_PRIVATE void setGlobalThis(VM&, JSObject* globalThis);
+
+    // FIXME: Fold reset into init.
+    JS_EXPORT_PRIVATE void init();
+    void reset(JSValue prototype);
+
+    void createThrowTypeError(VM&);
+
+    JS_EXPORT_PRIVATE static void clearRareData(JSCell*);
+};
+
+JSGlobalObject* asGlobalObject(JSValue);
+
+inline JSGlobalObject* asGlobalObject(JSValue value)
+{
+    ASSERT(asObject(value)->isGlobalObject());
+    return jsCast<JSGlobalObject*>(asObject(value));
+}
+
+inline bool JSGlobalObject::hasOwnPropertyForWrite(ExecState* exec, PropertyName propertyName)
+{
+    PropertySlot slot(this);
+    if (Base::getOwnPropertySlot(this, exec, propertyName, slot))
+        return true;
+    bool slotIsWriteable;
+    return symbolTableGet(this, propertyName, slot, slotIsWriteable);
+}
+
+inline bool JSGlobalObject::symbolTableHasProperty(PropertyName propertyName)
+{
+    SymbolTableEntry entry = symbolTable()->inlineGet(propertyName.uid());
+    return !entry.isNull();
+}
+
+inline JSArray* constructEmptyArray(ExecState* exec, ArrayAllocationProfile* profile, JSGlobalObject* globalObject, unsigned initialLength = 0)
+{
+    return ArrayAllocationProfile::updateLastAllocationFor(profile, JSArray::create(exec->vm(), initialLength >= MIN_SPARSE_ARRAY_INDEX ? globalObject->arrayStructureForIndexingTypeDuringAllocation(ArrayWithArrayStorage) : globalObject->arrayStructureForProfileDuringAllocation(profile), initialLength));
+}
+
+inline JSArray* constructEmptyArray(ExecState* exec, ArrayAllocationProfile* profile, unsigned initialLength = 0)
+{
+    return constructEmptyArray(exec, profile, exec->lexicalGlobalObject(), initialLength);
+}
+ 
+inline JSArray* constructArray(ExecState* exec, ArrayAllocationProfile* profile, JSGlobalObject* globalObject, const ArgList& values)
+{
+    return ArrayAllocationProfile::updateLastAllocationFor(profile, constructArray(exec, globalObject->arrayStructureForProfileDuringAllocation(profile), values));
+}
+
+inline JSArray* constructArray(ExecState* exec, ArrayAllocationProfile* profile, const ArgList& values)
+{
+    return constructArray(exec, profile, exec->lexicalGlobalObject(), values);
+}
+
+inline JSArray* constructArray(ExecState* exec, ArrayAllocationProfile* profile, JSGlobalObject* globalObject, const JSValue* values, unsigned length)
+{
+    return ArrayAllocationProfile::updateLastAllocationFor(profile, constructArray(exec, globalObject->arrayStructureForProfileDuringAllocation(profile), values, length));
+}
+
+inline JSArray* constructArray(ExecState* exec, ArrayAllocationProfile* profile, const JSValue* values, unsigned length)
+{
+    return constructArray(exec, profile, exec->lexicalGlobalObject(), values, length);
+}
+
+inline JSArray* constructArrayNegativeIndexed(ExecState* exec, ArrayAllocationProfile* profile, JSGlobalObject* globalObject, const JSValue* values, unsigned length)
+{
+    return ArrayAllocationProfile::updateLastAllocationFor(profile, constructArrayNegativeIndexed(exec, globalObject->arrayStructureForProfileDuringAllocation(profile), values, length));
+}
+
+inline JSArray* constructArrayNegativeIndexed(ExecState* exec, ArrayAllocationProfile* profile, const JSValue* values, unsigned length)
+{
+    return constructArrayNegativeIndexed(exec, profile, exec->lexicalGlobalObject(), values, length);
+}
+
+inline JSObject* JSScope::globalThis()
+{ 
+    return globalObject()->globalThis();
+}
+
+inline JSObject* JSGlobalObject::globalThis() const
+{ 
+    return m_globalThis.get();
+}

 
 } // namespace JSC
 
 
 } // namespace JSC