JavaScriptCore-7600.1.4.16.1.tar.gz

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

diff --git a/runtime/JSGlobalObject.cpp b/runtime/JSGlobalObject.cpp
index a71624f33c468a2c2e5c0d1864085aa1069ffe77..fbf2ff575a1a44bb2d3530563da2ccbaab6d3a9d 100644 (file)
--- a/runtime/JSGlobalObject.cpp
+++ b/runtime/JSGlobalObject.cpp
@@ -1,5 +1,5 @@
 /*
 /*

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

  * Copyright (C) 2008 Cameron Zwarich (cwzwarich@uwaterloo.ca)
  *
  * Redistribution and use in source and binary forms, with or without
  * Copyright (C) 2008 Cameron Zwarich (cwzwarich@uwaterloo.ca)
  *
  * Redistribution and use in source and binary forms, with or without


@@ -7,13 +7,13 @@
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright

- *     notice, this list of conditions and the following disclaimer. 
+ *     notice, this list of conditions and the following disclaimer.

  * 2.  Redistributions in binary form must reproduce the above copyright
  *     notice, this list of conditions and the following disclaimer in the
  * 2.  Redistributions in binary form must reproduce the above copyright
  *     notice, this list of conditions and the following disclaimer in the

- *     documentation and/or other materials provided with the distribution. 
- * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
+ *     documentation and/or other materials provided with the distribution.
+ * 3.  Neither the name of Apple Inc. ("Apple") nor the names of

  *     its contributors may be used to endorse or promote products derived
  *     its contributors may be used to endorse or promote products derived

- *     from this software without specific prior written permission. 
+ *     from this software without specific prior written permission.

  *
  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  *
  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED


@@ -30,50 +30,118 @@
 #include "config.h"
 #include "JSGlobalObject.h"
 
 #include "config.h"
 #include "JSGlobalObject.h"
 

-#include "JSCallbackConstructor.h"
-#include "JSCallbackFunction.h"
-#include "JSCallbackObject.h"
-

 #include "Arguments.h"
 #include "Arguments.h"

+#include "ArgumentsIteratorConstructor.h"
+#include "ArgumentsIteratorPrototype.h"

 #include "ArrayConstructor.h"
 #include "ArrayConstructor.h"

+#include "ArrayIteratorConstructor.h"
+#include "ArrayIteratorPrototype.h"

 #include "ArrayPrototype.h"
 #include "BooleanConstructor.h"
 #include "BooleanPrototype.h"
 #include "CodeBlock.h"
 #include "ArrayPrototype.h"
 #include "BooleanConstructor.h"
 #include "BooleanPrototype.h"
 #include "CodeBlock.h"

+#include "CodeCache.h"
+#include "ConsolePrototype.h"

 #include "DateConstructor.h"
 #include "DatePrototype.h"
 #include "DateConstructor.h"
 #include "DatePrototype.h"

+#include "Debugger.h"
+#include "Error.h"

 #include "ErrorConstructor.h"
 #include "ErrorPrototype.h"
 #include "FunctionConstructor.h"
 #include "FunctionPrototype.h"
 #include "ErrorConstructor.h"
 #include "ErrorPrototype.h"
 #include "FunctionConstructor.h"
 #include "FunctionPrototype.h"

+#include "GetterSetter.h"
+#include "HeapIterationScope.h"
+#include "Interpreter.h"
+#include "JSAPIWrapperObject.h"
+#include "JSActivation.h"
+#include "JSArgumentsIterator.h"
+#include "JSArrayBuffer.h"
+#include "JSArrayBufferConstructor.h"
+#include "JSArrayBufferPrototype.h"
+#include "JSArrayIterator.h"
+#include "JSBoundFunction.h"
+#include "JSCInlines.h"
+#include "JSCallbackConstructor.h"
+#include "JSCallbackFunction.h"
+#include "JSCallbackObject.h"
+#include "JSConsole.h"
+#include "JSDataView.h"
+#include "JSDataViewPrototype.h"

 #include "JSFunction.h"
 #include "JSFunction.h"

+#include "JSGenericTypedArrayViewConstructorInlines.h"
+#include "JSGenericTypedArrayViewInlines.h"
+#include "JSGenericTypedArrayViewPrototypeInlines.h"

 #include "JSGlobalObjectFunctions.h"
 #include "JSLock.h"
 #include "JSGlobalObjectFunctions.h"
 #include "JSLock.h"

+#include "JSMap.h"
+#include "JSMapIterator.h"
+#include "JSNameScope.h"

 #include "JSONObject.h"
 #include "JSONObject.h"

-#include "Interpreter.h"
+#include "JSSet.h"
+#include "JSSetIterator.h"
+#include "JSTypedArrayConstructors.h"
+#include "JSTypedArrayPrototypes.h"
+#include "JSTypedArrays.h"
+#include "JSWeakMap.h"
+#include "JSWithScope.h"
+#include "LegacyProfiler.h"

 #include "Lookup.h"
 #include "Lookup.h"

+#include "MapConstructor.h"
+#include "MapIteratorConstructor.h"
+#include "MapIteratorPrototype.h"
+#include "MapPrototype.h"

 #include "MathObject.h"
 #include "MathObject.h"

+#include "Microtask.h"
+#include "NameConstructor.h"
+#include "NameInstance.h"
+#include "NamePrototype.h"

 #include "NativeErrorConstructor.h"
 #include "NativeErrorPrototype.h"
 #include "NumberConstructor.h"
 #include "NumberPrototype.h"
 #include "NativeErrorConstructor.h"
 #include "NativeErrorPrototype.h"
 #include "NumberConstructor.h"
 #include "NumberPrototype.h"

+#include "ObjCCallbackFunction.h"

 #include "ObjectConstructor.h"
 #include "ObjectPrototype.h"
 #include "ObjectConstructor.h"
 #include "ObjectPrototype.h"

-#include "Profiler.h"
+#include "ParserError.h"

 #include "RegExpConstructor.h"
 #include "RegExpMatchesArray.h"
 #include "RegExpObject.h"
 #include "RegExpPrototype.h"
 #include "RegExpConstructor.h"
 #include "RegExpMatchesArray.h"
 #include "RegExpObject.h"
 #include "RegExpPrototype.h"

-#include "ScopeChainMark.h"
+#include "SetConstructor.h"
+#include "SetIteratorConstructor.h"
+#include "SetIteratorPrototype.h"
+#include "SetPrototype.h"
+#include "StrictEvalActivation.h"

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

-#include "Debugger.h"
+#include "VariableWatchpointSetInlines.h"
+#include "WeakMapConstructor.h"
+#include "WeakMapPrototype.h"
+
+#if ENABLE(PROMISES)
+#include "JSPromise.h"
+#include "JSPromiseConstructor.h"
+#include "JSPromisePrototype.h"
+#endif // ENABLE(PROMISES)
+
+#if ENABLE(REMOTE_INSPECTOR)
+#include "JSGlobalObjectDebuggable.h"
+#include "JSGlobalObjectInspectorController.h"
+#endif
+
+#if ENABLE(WEB_REPLAY)
+#include "EmptyInputCursor.h"
+#include "JSReplayInputs.h"
+#endif

 
 #include "JSGlobalObject.lut.h"
 
 namespace JSC {
 
 
 #include "JSGlobalObject.lut.h"
 
 namespace JSC {
 

-const ClassInfo JSGlobalObject::s_info = { "GlobalObject", &JSVariableObject::s_info, 0, ExecState::globalObjectTable };
+const ClassInfo JSGlobalObject::s_info = { "GlobalObject", &Base::s_info, 0, ExecState::globalObjectTable, CREATE_METHOD_TABLE(JSGlobalObject) };
+
+const GlobalObjectMethodTable JSGlobalObject::s_globalObjectMethodTable = { &allowsAccessFrom, &supportsProfiling, &supportsRichSourceInfo, &shouldInterruptScript, &javaScriptExperimentsEnabled, 0, &shouldInterruptScriptBeforeTimeout };

 
 /* Source for JSGlobalObject.lut.h
 @begin globalObjectTable
 
 /* Source for JSGlobalObject.lut.h
 @begin globalObjectTable


@@ -90,89 +158,111 @@ const ClassInfo JSGlobalObject::s_info = { "GlobalObject", &JSVariableObject::s_
 @end
 */
 
 @end
 */
 

-ASSERT_CLASS_FITS_IN_CELL(JSGlobalObject);
-
-// Default number of ticks before a timeout check should be done.
-static const int initialTickCountThreshold = 255;
-
-// Preferred number of milliseconds between each timeout check
-static const int preferredScriptCheckTimeInterval = 1000;
-
-template <typename T> static inline void visitIfNeeded(SlotVisitor& visitor, WriteBarrier<T>* v)
+JSGlobalObject::JSGlobalObject(VM& vm, Structure* structure, const GlobalObjectMethodTable* globalObjectMethodTable)
+    : Base(vm, structure, 0)
+    , m_vm(vm)
+#if ENABLE(WEB_REPLAY)
+    , m_inputCursor(EmptyInputCursor::create())
+#endif
+    , m_masqueradesAsUndefinedWatchpoint(adoptRef(new WatchpointSet(IsWatched)))
+    , m_havingABadTimeWatchpoint(adoptRef(new WatchpointSet(IsWatched)))
+    , m_varInjectionWatchpoint(adoptRef(new WatchpointSet(IsWatched)))
+    , m_weakRandom(Options::forceWeakRandomSeed() ? Options::forcedWeakRandomSeed() : static_cast<unsigned>(randomNumber() * (std::numeric_limits<unsigned>::max() + 1.0)))
+    , m_evalEnabled(true)
+    , m_experimentsEnabled(false)
+    , m_consoleClient(nullptr)
+    , m_globalObjectMethodTable(globalObjectMethodTable ? globalObjectMethodTable : &s_globalObjectMethodTable)

 {
 {

-    if (*v)
-        visitor.append(v);

 }
 
 JSGlobalObject::~JSGlobalObject()
 {
 }
 
 JSGlobalObject::~JSGlobalObject()
 {

-    ASSERT(JSLock::currentThreadIsHoldingLock());
+#if ENABLE(REMOTE_INSPECTOR)
+    m_inspectorController->globalObjectDestroyed();
+#endif

 
     if (m_debugger)
 
     if (m_debugger)

-        m_debugger->detach(this);
+        m_debugger->detach(this, Debugger::GlobalObjectIsDestructing);

 
 

-    Profiler** profiler = Profiler::enabledProfilerReference();
-    if (UNLIKELY(*profiler != 0)) {
-        (*profiler)->stopProfiling(this);
-    }
+    if (LegacyProfiler* profiler = vm().enabledProfiler())
+        profiler->stopProfiling(this);

 }
 
 }
 

-void JSGlobalObject::init(JSObject* thisValue)
+void JSGlobalObject::destroy(JSCell* cell)

 {
 {

-    ASSERT(JSLock::currentThreadIsHoldingLock());
-    
-    structure()->disableSpecificFunctionTracking();
+    static_cast<JSGlobalObject*>(cell)->JSGlobalObject::~JSGlobalObject();
+}
+
+void JSGlobalObject::setGlobalThis(VM& vm, JSObject* globalThis)
+{
+    m_globalThis.set(vm, this, globalThis);
+}

 
 

-    m_globalData = Heap::heap(this)->globalData();
-    m_globalScopeChain.set(*m_globalData, this, new (m_globalData.get()) ScopeChainNode(0, this, m_globalData.get(), this, thisValue));
+void JSGlobalObject::init()
+{
+    ASSERT(vm().currentThreadIsHoldingAPILock());

 
 

-    JSGlobalObject::globalExec()->init(0, 0, m_globalScopeChain.get(), CallFrame::noCaller(), 0, 0);
+    JSGlobalObject::globalExec()->init(0, 0, this, CallFrame::noCaller(), 0, 0);

 
     m_debugger = 0;
 
 
     m_debugger = 0;
 

-    m_profileGroup = 0;
+#if ENABLE(REMOTE_INSPECTOR)
+    m_inspectorController = std::make_unique<Inspector::JSGlobalObjectInspectorController>(*this);
+    m_inspectorDebuggable = std::make_unique<JSGlobalObjectDebuggable>(*this);
+    m_inspectorDebuggable->init();
+    m_inspectorDebuggable->setRemoteDebuggingAllowed(true);
+    m_consoleClient = m_inspectorController->consoleClient();
+#endif

 
     reset(prototype());
 }
 
 
     reset(prototype());
 }
 

-void JSGlobalObject::put(ExecState* exec, const Identifier& propertyName, JSValue value, PutPropertySlot& slot)
+void JSGlobalObject::put(JSCell* cell, ExecState* exec, PropertyName propertyName, JSValue value, PutPropertySlot& slot)

 {
 {

-    ASSERT(!Heap::heap(value) || Heap::heap(value) == Heap::heap(this));
+    JSGlobalObject* thisObject = jsCast<JSGlobalObject*>(cell);
+    ASSERT(!Heap::heap(value) || Heap::heap(value) == Heap::heap(thisObject));

 
 

-    if (symbolTablePut(exec->globalData(), propertyName, value))
+    if (symbolTablePut(thisObject, exec, propertyName, value, slot.isStrictMode()))

         return;
         return;

-    JSVariableObject::put(exec, propertyName, value, slot);
+    Base::put(thisObject, exec, propertyName, value, slot);

 }
 
 }
 

-void JSGlobalObject::putWithAttributes(ExecState* exec, const Identifier& propertyName, JSValue value, unsigned attributes)
+bool JSGlobalObject::defineOwnProperty(JSObject* object, ExecState* exec, PropertyName propertyName, const PropertyDescriptor& descriptor, bool shouldThrow)

 {
 {

-    ASSERT(!Heap::heap(value) || Heap::heap(value) == Heap::heap(this));
-
-    if (symbolTablePutWithAttributes(exec->globalData(), propertyName, value, attributes))
-        return;
-
-    JSValue valueBefore = getDirect(exec->globalData(), propertyName);
-    PutPropertySlot slot;
-    JSVariableObject::put(exec, propertyName, value, slot);
-    if (!valueBefore) {
-        JSValue valueAfter = getDirect(exec->globalData(), propertyName);
-        if (valueAfter)
-            JSObject::putWithAttributes(exec, propertyName, valueAfter, attributes);
-    }
+    JSGlobalObject* thisObject = jsCast<JSGlobalObject*>(object);
+    PropertySlot slot(thisObject);
+    // silently ignore attempts to add accessors aliasing vars.
+    if (descriptor.isAccessorDescriptor() && symbolTableGet(thisObject, propertyName, slot))
+        return false;
+    return Base::defineOwnProperty(thisObject, exec, propertyName, descriptor, shouldThrow);

 }
 
 }
 

-void JSGlobalObject::defineGetter(ExecState* exec, const Identifier& propertyName, JSObject* getterFunc, unsigned attributes)
+JSGlobalObject::NewGlobalVar JSGlobalObject::addGlobalVar(const Identifier& ident, ConstantMode constantMode)

 {
 {

-    PropertySlot slot;
-    if (!symbolTableGet(propertyName, slot))
-        JSVariableObject::defineGetter(exec, propertyName, getterFunc, attributes);
+    ConcurrentJITLocker locker(symbolTable()->m_lock);
+    int index = symbolTable()->size(locker);
+    SymbolTableEntry newEntry(index, (constantMode == IsConstant) ? ReadOnly : 0);
+    if (constantMode == IsVariable)
+        newEntry.prepareToWatch(symbolTable());
+    SymbolTable::Map::AddResult result = symbolTable()->add(locker, ident.impl(), newEntry);
+    if (result.isNewEntry)
+        addRegisters(1);
+    else
+        index = result.iterator->value.getIndex();
+    NewGlobalVar var;
+    var.registerNumber = index;
+    var.set = result.iterator->value.watchpointSet();
+    return var;

 }
 
 }
 

-void JSGlobalObject::defineSetter(ExecState* exec, const Identifier& propertyName, JSObject* setterFunc, unsigned attributes)
+void JSGlobalObject::addFunction(ExecState* exec, const Identifier& propertyName, JSValue value)

 {
 {

-    PropertySlot slot;
-    if (!symbolTableGet(propertyName, slot))
-        JSVariableObject::defineSetter(exec, propertyName, setterFunc, attributes);
+    VM& vm = exec->vm();
+    removeDirect(vm, propertyName); // Newly declared functions overwrite existing properties.
+    NewGlobalVar var = addGlobalVar(propertyName, IsVariable);
+    registerAt(var.registerNumber).set(exec->vm(), this, value);
+    if (var.set)
+        var.set->notifyWrite(vm, value);

 }
 
 static inline JSObject* lastInPrototypeChain(JSObject* object)
 }
 
 static inline JSObject* lastInPrototypeChain(JSObject* object)


@@ -186,334 +276,575 @@ static inline JSObject* lastInPrototypeChain(JSObject* object)
 void JSGlobalObject::reset(JSValue prototype)
 {
     ExecState* exec = JSGlobalObject::globalExec();
 void JSGlobalObject::reset(JSValue prototype)
 {
     ExecState* exec = JSGlobalObject::globalExec();

+    VM& vm = exec->vm();

 
 

-    m_functionPrototype.set(exec->globalData(), this, new (exec) FunctionPrototype(exec, this, FunctionPrototype::createStructure(exec->globalData(), jsNull()))); // The real prototype will be set once ObjectPrototype is created.
-    m_functionStructure.set(exec->globalData(), this, JSFunction::createStructure(exec->globalData(), m_functionPrototype.get()));
-    m_internalFunctionStructure.set(exec->globalData(), this, InternalFunction::createStructure(exec->globalData(), m_functionPrototype.get()));
+    m_functionPrototype.set(vm, this, FunctionPrototype::create(vm, FunctionPrototype::createStructure(vm, this, jsNull()))); // The real prototype will be set once ObjectPrototype is created.
+    m_functionStructure.set(vm, this, JSFunction::createStructure(vm, this, m_functionPrototype.get()));
+    m_boundFunctionStructure.set(vm, this, JSBoundFunction::createStructure(vm, this, m_functionPrototype.get()));
+    m_namedFunctionStructure.set(vm, this, Structure::addPropertyTransition(vm, m_functionStructure.get(), vm.propertyNames->name, DontDelete | ReadOnly | DontEnum, 0, m_functionNameOffset));
+    m_internalFunctionStructure.set(vm, this, InternalFunction::createStructure(vm, this, m_functionPrototype.get()));

     JSFunction* callFunction = 0;
     JSFunction* applyFunction = 0;
     JSFunction* callFunction = 0;
     JSFunction* applyFunction = 0;

-    m_functionPrototype->addFunctionProperties(exec, this, m_functionStructure.get(), &callFunction, &applyFunction);
-    m_callFunction.set(exec->globalData(), this, callFunction);
-    m_applyFunction.set(exec->globalData(), this, applyFunction);
-    m_objectPrototype.set(exec->globalData(), this, new (exec) ObjectPrototype(exec, this, ObjectPrototype::createStructure(exec->globalData(), jsNull())));
-    m_functionPrototype->structure()->setPrototypeWithoutTransition(exec->globalData(), m_objectPrototype.get());
+    m_functionPrototype->addFunctionProperties(exec, this, &callFunction, &applyFunction);
+    m_callFunction.set(vm, this, callFunction);
+    m_applyFunction.set(vm, this, applyFunction);
+    m_objectPrototype.set(vm, this, ObjectPrototype::create(vm, this, ObjectPrototype::createStructure(vm, this, jsNull())));
+    GetterSetter* protoAccessor = GetterSetter::create(vm);
+    protoAccessor->setGetter(vm, JSFunction::create(vm, this, 0, String(), globalFuncProtoGetter));
+    protoAccessor->setSetter(vm, JSFunction::create(vm, this, 0, String(), globalFuncProtoSetter));
+    m_objectPrototype->putDirectNonIndexAccessor(vm, vm.propertyNames->underscoreProto, protoAccessor, Accessor | DontEnum);
+    m_functionPrototype->structure()->setPrototypeWithoutTransition(vm, m_objectPrototype.get());
+    
+    m_typedArrays[toIndex(TypeInt8)].prototype.set(vm, this, JSInt8ArrayPrototype::create(vm, this, JSInt8ArrayPrototype::createStructure(vm, this, m_objectPrototype.get())));
+    m_typedArrays[toIndex(TypeInt16)].prototype.set(vm, this, JSInt16ArrayPrototype::create(vm, this, JSInt16ArrayPrototype::createStructure(vm, this, m_objectPrototype.get())));
+    m_typedArrays[toIndex(TypeInt32)].prototype.set(vm, this, JSInt32ArrayPrototype::create(vm, this, JSInt32ArrayPrototype::createStructure(vm, this, m_objectPrototype.get())));
+    m_typedArrays[toIndex(TypeUint8)].prototype.set(vm, this, JSUint8ArrayPrototype::create(vm, this, JSUint8ArrayPrototype::createStructure(vm, this, m_objectPrototype.get())));
+    m_typedArrays[toIndex(TypeUint8Clamped)].prototype.set(vm, this, JSUint8ClampedArrayPrototype::create(vm, this, JSUint8ClampedArrayPrototype::createStructure(vm, this, m_objectPrototype.get())));
+    m_typedArrays[toIndex(TypeUint16)].prototype.set(vm, this, JSUint16ArrayPrototype::create(vm, this, JSUint16ArrayPrototype::createStructure(vm, this, m_objectPrototype.get())));
+    m_typedArrays[toIndex(TypeUint32)].prototype.set(vm, this, JSUint32ArrayPrototype::create(vm, this, JSUint32ArrayPrototype::createStructure(vm, this, m_objectPrototype.get())));
+    m_typedArrays[toIndex(TypeFloat32)].prototype.set(vm, this, JSFloat32ArrayPrototype::create(vm, this, JSFloat32ArrayPrototype::createStructure(vm, this, m_objectPrototype.get())));
+    m_typedArrays[toIndex(TypeFloat64)].prototype.set(vm, this, JSFloat64ArrayPrototype::create(vm, this, JSFloat64ArrayPrototype::createStructure(vm, this, m_objectPrototype.get())));
+    m_typedArrays[toIndex(TypeDataView)].prototype.set(vm, this, JSDataViewPrototype::create(vm, JSDataViewPrototype::createStructure(vm, this, m_objectPrototype.get())));
+    
+    m_typedArrays[toIndex(TypeInt8)].structure.set(vm, this, JSInt8Array::createStructure(vm, this, m_typedArrays[toIndex(TypeInt8)].prototype.get()));
+    m_typedArrays[toIndex(TypeInt16)].structure.set(vm, this, JSInt16Array::createStructure(vm, this, m_typedArrays[toIndex(TypeInt16)].prototype.get()));
+    m_typedArrays[toIndex(TypeInt32)].structure.set(vm, this, JSInt32Array::createStructure(vm, this, m_typedArrays[toIndex(TypeInt32)].prototype.get()));
+    m_typedArrays[toIndex(TypeUint8)].structure.set(vm, this, JSUint8Array::createStructure(vm, this, m_typedArrays[toIndex(TypeUint8)].prototype.get()));
+    m_typedArrays[toIndex(TypeUint8Clamped)].structure.set(vm, this, JSUint8ClampedArray::createStructure(vm, this, m_typedArrays[toIndex(TypeUint8Clamped)].prototype.get()));
+    m_typedArrays[toIndex(TypeUint16)].structure.set(vm, this, JSUint16Array::createStructure(vm, this, m_typedArrays[toIndex(TypeUint16)].prototype.get()));
+    m_typedArrays[toIndex(TypeUint32)].structure.set(vm, this, JSUint32Array::createStructure(vm, this, m_typedArrays[toIndex(TypeUint32)].prototype.get()));
+    m_typedArrays[toIndex(TypeFloat32)].structure.set(vm, this, JSFloat32Array::createStructure(vm, this, m_typedArrays[toIndex(TypeFloat32)].prototype.get()));
+    m_typedArrays[toIndex(TypeFloat64)].structure.set(vm, this, JSFloat64Array::createStructure(vm, this, m_typedArrays[toIndex(TypeFloat64)].prototype.get()));
+    m_typedArrays[toIndex(TypeDataView)].structure.set(vm, this, JSDataView::createStructure(vm, this, m_typedArrays[toIndex(TypeDataView)].prototype.get()));
+
+    m_nameScopeStructure.set(vm, this, JSNameScope::createStructure(vm, this, jsNull()));
+    m_activationStructure.set(vm, this, JSActivation::createStructure(vm, this, jsNull()));
+    m_strictEvalActivationStructure.set(vm, this, StrictEvalActivation::createStructure(vm, this, jsNull()));
+    m_withScopeStructure.set(vm, this, JSWithScope::createStructure(vm, this, jsNull()));
+
+    m_nullPrototypeObjectStructure.set(vm, this, JSFinalObject::createStructure(vm, this, jsNull(), JSFinalObject::defaultInlineCapacity()));
+
+    m_callbackFunctionStructure.set(vm, this, JSCallbackFunction::createStructure(vm, this, m_functionPrototype.get()));
+    m_argumentsStructure.set(vm, this, Arguments::createStructure(vm, this, m_objectPrototype.get()));
+    m_callbackConstructorStructure.set(vm, this, JSCallbackConstructor::createStructure(vm, this, m_objectPrototype.get()));
+    m_callbackObjectStructure.set(vm, this, JSCallbackObject<JSDestructibleObject>::createStructure(vm, this, m_objectPrototype.get()));
+#if JSC_OBJC_API_ENABLED
+    m_objcCallbackFunctionStructure.set(vm, this, ObjCCallbackFunction::createStructure(vm, this, m_functionPrototype.get()));
+    m_objcWrapperObjectStructure.set(vm, this, JSCallbackObject<JSAPIWrapperObject>::createStructure(vm, this, m_objectPrototype.get()));
+#endif

 
 

-    m_emptyObjectStructure.set(exec->globalData(), this, m_objectPrototype->inheritorID(exec->globalData()));
-    m_nullPrototypeObjectStructure.set(exec->globalData(), this, createEmptyObjectStructure(exec->globalData(), jsNull()));
+    m_arrayPrototype.set(vm, this, ArrayPrototype::create(vm, this, ArrayPrototype::createStructure(vm, this, m_objectPrototype.get())));
+    
+    m_originalArrayStructureForIndexingShape[UndecidedShape >> IndexingShapeShift].set(vm, this, JSArray::createStructure(vm, this, m_arrayPrototype.get(), ArrayWithUndecided));
+    m_originalArrayStructureForIndexingShape[Int32Shape >> IndexingShapeShift].set(vm, this, JSArray::createStructure(vm, this, m_arrayPrototype.get(), ArrayWithInt32));
+    m_originalArrayStructureForIndexingShape[DoubleShape >> IndexingShapeShift].set(vm, this, JSArray::createStructure(vm, this, m_arrayPrototype.get(), ArrayWithDouble));
+    m_originalArrayStructureForIndexingShape[ContiguousShape >> IndexingShapeShift].set(vm, this, JSArray::createStructure(vm, this, m_arrayPrototype.get(), ArrayWithContiguous));
+    m_originalArrayStructureForIndexingShape[ArrayStorageShape >> IndexingShapeShift].set(vm, this, JSArray::createStructure(vm, this, m_arrayPrototype.get(), ArrayWithArrayStorage));
+    m_originalArrayStructureForIndexingShape[SlowPutArrayStorageShape >> IndexingShapeShift].set(vm, this, JSArray::createStructure(vm, this, m_arrayPrototype.get(), ArrayWithSlowPutArrayStorage));
+    for (unsigned i = 0; i < NumberOfIndexingShapes; ++i)
+        m_arrayStructureForIndexingShapeDuringAllocation[i] = m_originalArrayStructureForIndexingShape[i];
+    
+    m_regExpMatchesArrayStructure.set(vm, this, RegExpMatchesArray::createStructure(vm, this, m_arrayPrototype.get()));

 
 

-    m_callbackFunctionStructure.set(exec->globalData(), this, JSCallbackFunction::createStructure(exec->globalData(), m_functionPrototype.get()));
-    m_argumentsStructure.set(exec->globalData(), this, Arguments::createStructure(exec->globalData(), m_objectPrototype.get()));
-    m_callbackConstructorStructure.set(exec->globalData(), this, JSCallbackConstructor::createStructure(exec->globalData(), m_objectPrototype.get()));
-    m_callbackObjectStructure.set(exec->globalData(), this, JSCallbackObject<JSObjectWithGlobalObject>::createStructure(exec->globalData(), m_objectPrototype.get()));
+    RegExp* emptyRegex = RegExp::create(vm, "", NoFlags);
+    
+    m_regExpPrototype.set(vm, this, RegExpPrototype::create(vm, RegExpPrototype::createStructure(vm, this, m_objectPrototype.get()), emptyRegex));
+    m_regExpStructure.set(vm, this, RegExpObject::createStructure(vm, this, m_regExpPrototype.get()));

 
 

-    m_arrayPrototype.set(exec->globalData(), this, new (exec) ArrayPrototype(this, ArrayPrototype::createStructure(exec->globalData(), m_objectPrototype.get())));
-    m_arrayStructure.set(exec->globalData(), this, JSArray::createStructure(exec->globalData(), m_arrayPrototype.get()));
-    m_regExpMatchesArrayStructure.set(exec->globalData(), this, RegExpMatchesArray::createStructure(exec->globalData(), m_arrayPrototype.get()));
+#if ENABLE(PROMISES)
+    m_promisePrototype.set(vm, this, JSPromisePrototype::create(exec, this, JSPromisePrototype::createStructure(vm, this, m_objectPrototype.get())));
+    m_promiseStructure.set(vm, this, JSPromise::createStructure(vm, this, m_promisePrototype.get()));
+#endif // ENABLE(PROMISES)

 
 

-    m_stringPrototype.set(exec->globalData(), this, new (exec) StringPrototype(exec, this, StringPrototype::createStructure(exec->globalData(), m_objectPrototype.get())));
-    m_stringObjectStructure.set(exec->globalData(), this, StringObject::createStructure(exec->globalData(), m_stringPrototype.get()));
+#define CREATE_PROTOTYPE_FOR_SIMPLE_TYPE(capitalName, lowerName, properName, instanceType, jsName) \
+    m_ ## lowerName ## Prototype.set(vm, this, capitalName##Prototype::create(vm, this, capitalName##Prototype::createStructure(vm, this, m_objectPrototype.get()))); \
+    m_ ## properName ## Structure.set(vm, this, instanceType::createStructure(vm, this, m_ ## lowerName ## Prototype.get()));

 
 

-    m_booleanPrototype.set(exec->globalData(), this, new (exec) BooleanPrototype(exec, this, BooleanPrototype::createStructure(exec->globalData(), m_objectPrototype.get())));
-    m_booleanObjectStructure.set(exec->globalData(), this, BooleanObject::createStructure(exec->globalData(), m_booleanPrototype.get()));
+    FOR_EACH_SIMPLE_BUILTIN_TYPE(CREATE_PROTOTYPE_FOR_SIMPLE_TYPE)

 
 

-    m_numberPrototype.set(exec->globalData(), this, new (exec) NumberPrototype(exec, this, NumberPrototype::createStructure(exec->globalData(), m_objectPrototype.get())));
-    m_numberObjectStructure.set(exec->globalData(), this, NumberObject::createStructure(exec->globalData(), m_numberPrototype.get()));
+#undef CREATE_PROTOTYPE_FOR_SIMPLE_TYPE

 
 

-    m_datePrototype.set(exec->globalData(), this, new (exec) DatePrototype(exec, this, DatePrototype::createStructure(exec->globalData(), m_objectPrototype.get())));
-    m_dateStructure.set(exec->globalData(), this, DateInstance::createStructure(exec->globalData(), m_datePrototype.get()));
+    // Constructors

 
 

-    RegExp* emptyRegex = RegExp::create(&exec->globalData(), "", NoFlags);
-    
-    m_regExpPrototype.set(exec->globalData(), this, new (exec) RegExpPrototype(exec, this, RegExpPrototype::createStructure(exec->globalData(), m_objectPrototype.get()), emptyRegex));
-    m_regExpStructure.set(exec->globalData(), this, RegExpObject::createStructure(exec->globalData(), m_regExpPrototype.get()));
+    ObjectConstructor* objectConstructor = ObjectConstructor::create(vm, ObjectConstructor::createStructure(vm, this, m_functionPrototype.get()), m_objectPrototype.get());
+    m_objectConstructor.set(vm, this, objectConstructor);
+    JSCell* functionConstructor = FunctionConstructor::create(vm, FunctionConstructor::createStructure(vm, this, m_functionPrototype.get()), m_functionPrototype.get());
+    JSCell* arrayConstructor = ArrayConstructor::create(vm, ArrayConstructor::createStructure(vm, this, m_functionPrototype.get()), m_arrayPrototype.get());

 
 

-    m_methodCallDummy.set(exec->globalData(), this, constructEmptyObject(exec));
+    m_regExpConstructor.set(vm, this, RegExpConstructor::create(vm, RegExpConstructor::createStructure(vm, this, m_functionPrototype.get()), m_regExpPrototype.get()));

 
 

-    ErrorPrototype* errorPrototype = new (exec) ErrorPrototype(exec, this, ErrorPrototype::createStructure(exec->globalData(), m_objectPrototype.get()));
-    m_errorStructure.set(exec->globalData(), this, ErrorInstance::createStructure(exec->globalData(), errorPrototype));
+#define CREATE_CONSTRUCTOR_FOR_SIMPLE_TYPE(capitalName, lowerName, properName, instanceType, jsName) \
+    capitalName ## Constructor* lowerName ## Constructor = capitalName ## Constructor::create(vm, capitalName ## Constructor::createStructure(vm, this, m_functionPrototype.get()), m_ ## lowerName ## Prototype.get()); \
+    m_ ## lowerName ## Prototype->putDirectWithoutTransition(vm, vm.propertyNames->constructor, lowerName ## Constructor, DontEnum); \

 
 

-    // Constructors
+    FOR_EACH_SIMPLE_BUILTIN_TYPE(CREATE_CONSTRUCTOR_FOR_SIMPLE_TYPE)
+
+#undef CREATE_CONSTRUCTOR_FOR_SIMPLE_TYPE
+
+    m_errorConstructor.set(vm, this, errorConstructor);
+
+    Structure* nativeErrorPrototypeStructure = NativeErrorPrototype::createStructure(vm, this, m_errorPrototype.get());
+    Structure* nativeErrorStructure = NativeErrorConstructor::createStructure(vm, this, m_functionPrototype.get());
+    m_evalErrorConstructor.set(vm, this, NativeErrorConstructor::create(vm, this, nativeErrorStructure, nativeErrorPrototypeStructure, ASCIILiteral("EvalError")));
+    m_rangeErrorConstructor.set(vm, this, NativeErrorConstructor::create(vm, this, nativeErrorStructure, nativeErrorPrototypeStructure, ASCIILiteral("RangeError")));
+    m_referenceErrorConstructor.set(vm, this, NativeErrorConstructor::create(vm, this, nativeErrorStructure, nativeErrorPrototypeStructure, ASCIILiteral("ReferenceError")));
+    m_syntaxErrorConstructor.set(vm, this, NativeErrorConstructor::create(vm, this, nativeErrorStructure, nativeErrorPrototypeStructure, ASCIILiteral("SyntaxError")));
+    m_typeErrorConstructor.set(vm, this, NativeErrorConstructor::create(vm, this, nativeErrorStructure, nativeErrorPrototypeStructure, ASCIILiteral("TypeError")));
+    m_URIErrorConstructor.set(vm, this, NativeErrorConstructor::create(vm, this, nativeErrorStructure, nativeErrorPrototypeStructure, ASCIILiteral("URIError")));
+#if ENABLE(PROMISES)
+    m_promiseConstructor.set(vm, this, JSPromiseConstructor::create(vm, JSPromiseConstructor::createStructure(vm, this, m_functionPrototype.get()), m_promisePrototype.get()));
+#endif
+
+    m_objectPrototype->putDirectWithoutTransition(vm, vm.propertyNames->constructor, objectConstructor, DontEnum);
+    m_functionPrototype->putDirectWithoutTransition(vm, vm.propertyNames->constructor, functionConstructor, DontEnum);
+    m_arrayPrototype->putDirectWithoutTransition(vm, vm.propertyNames->constructor, arrayConstructor, DontEnum);
+    m_regExpPrototype->putDirectWithoutTransition(vm, vm.propertyNames->constructor, m_regExpConstructor.get(), DontEnum);
+#if ENABLE(PROMISES)
+    m_promisePrototype->putDirectWithoutTransition(vm, vm.propertyNames->constructor, m_promiseConstructor.get(), DontEnum);
+#endif
+
+    putDirectWithoutTransition(vm, vm.propertyNames->Object, objectConstructor, DontEnum);
+    putDirectWithoutTransition(vm, vm.propertyNames->Function, functionConstructor, DontEnum);
+    putDirectWithoutTransition(vm, vm.propertyNames->Array, arrayConstructor, DontEnum);
+    putDirectWithoutTransition(vm, vm.propertyNames->RegExp, m_regExpConstructor.get(), DontEnum);
+    putDirectWithoutTransition(vm, vm.propertyNames->EvalError, m_evalErrorConstructor.get(), DontEnum);
+    putDirectWithoutTransition(vm, vm.propertyNames->RangeError, m_rangeErrorConstructor.get(), DontEnum);
+    putDirectWithoutTransition(vm, vm.propertyNames->ReferenceError, m_referenceErrorConstructor.get(), DontEnum);
+    putDirectWithoutTransition(vm, vm.propertyNames->SyntaxError, m_syntaxErrorConstructor.get(), DontEnum);
+    putDirectWithoutTransition(vm, vm.propertyNames->TypeError, m_typeErrorConstructor.get(), DontEnum);
+    putDirectWithoutTransition(vm, vm.propertyNames->URIError, m_URIErrorConstructor.get(), DontEnum);
+#if ENABLE(PROMISES)
+    putDirectWithoutTransition(vm, vm.propertyNames->Promise, m_promiseConstructor.get(), DontEnum);
+#endif
+
+
+#define PUT_CONSTRUCTOR_FOR_SIMPLE_TYPE(capitalName, lowerName, properName, instanceType, jsName) \
+    putDirectWithoutTransition(vm, vm.propertyNames-> jsName, lowerName ## Constructor, DontEnum); \
+
+    FOR_EACH_SIMPLE_BUILTIN_TYPE_WITH_CONSTRUCTOR(PUT_CONSTRUCTOR_FOR_SIMPLE_TYPE)

 
 

-    JSCell* objectConstructor = new (exec) ObjectConstructor(exec, this, ObjectConstructor::createStructure(exec->globalData(), m_functionPrototype.get()), m_objectPrototype.get());
-    JSCell* functionConstructor = new (exec) FunctionConstructor(exec, this, FunctionConstructor::createStructure(exec->globalData(), m_functionPrototype.get()), m_functionPrototype.get());
-    JSCell* arrayConstructor = new (exec) ArrayConstructor(exec, this, ArrayConstructor::createStructure(exec->globalData(), m_functionPrototype.get()), m_arrayPrototype.get());
-    JSCell* stringConstructor = new (exec) StringConstructor(exec, this, StringConstructor::createStructure(exec->globalData(), m_functionPrototype.get()), m_stringPrototype.get());
-    JSCell* booleanConstructor = new (exec) BooleanConstructor(exec, this, BooleanConstructor::createStructure(exec->globalData(), m_functionPrototype.get()), m_booleanPrototype.get());
-    JSCell* numberConstructor = new (exec) NumberConstructor(exec, this, NumberConstructor::createStructure(exec->globalData(), m_functionPrototype.get()), m_numberPrototype.get());
-    JSCell* dateConstructor = new (exec) DateConstructor(exec, this, DateConstructor::createStructure(exec->globalData(), m_functionPrototype.get()), m_datePrototype.get());
-
-    m_regExpConstructor.set(exec->globalData(), this, new (exec) RegExpConstructor(exec, this, RegExpConstructor::createStructure(exec->globalData(), m_functionPrototype.get()), m_regExpPrototype.get()));
-
-    m_errorConstructor.set(exec->globalData(), this, new (exec) ErrorConstructor(exec, this, ErrorConstructor::createStructure(exec->globalData(), m_functionPrototype.get()), errorPrototype));
-
-    Structure* nativeErrorPrototypeStructure = NativeErrorPrototype::createStructure(exec->globalData(), errorPrototype);
-    Structure* nativeErrorStructure = NativeErrorConstructor::createStructure(exec->globalData(), m_functionPrototype.get());
-    m_evalErrorConstructor.set(exec->globalData(), this, new (exec) NativeErrorConstructor(exec, this, nativeErrorStructure, nativeErrorPrototypeStructure, "EvalError"));
-    m_rangeErrorConstructor.set(exec->globalData(), this, new (exec) NativeErrorConstructor(exec, this, nativeErrorStructure, nativeErrorPrototypeStructure, "RangeError"));
-    m_referenceErrorConstructor.set(exec->globalData(), this, new (exec) NativeErrorConstructor(exec, this, nativeErrorStructure, nativeErrorPrototypeStructure, "ReferenceError"));
-    m_syntaxErrorConstructor.set(exec->globalData(), this, new (exec) NativeErrorConstructor(exec, this, nativeErrorStructure, nativeErrorPrototypeStructure, "SyntaxError"));
-    m_typeErrorConstructor.set(exec->globalData(), this, new (exec) NativeErrorConstructor(exec, this, nativeErrorStructure, nativeErrorPrototypeStructure, "TypeError"));
-    m_URIErrorConstructor.set(exec->globalData(), this, new (exec) NativeErrorConstructor(exec, this, nativeErrorStructure, nativeErrorPrototypeStructure, "URIError"));
-
-    m_objectPrototype->putDirectFunctionWithoutTransition(exec->globalData(), exec->propertyNames().constructor, objectConstructor, DontEnum);
-    m_functionPrototype->putDirectFunctionWithoutTransition(exec->globalData(), exec->propertyNames().constructor, functionConstructor, DontEnum);
-    m_arrayPrototype->putDirectFunctionWithoutTransition(exec->globalData(), exec->propertyNames().constructor, arrayConstructor, DontEnum);
-    m_booleanPrototype->putDirectFunctionWithoutTransition(exec->globalData(), exec->propertyNames().constructor, booleanConstructor, DontEnum);
-    m_stringPrototype->putDirectFunctionWithoutTransition(exec->globalData(), exec->propertyNames().constructor, stringConstructor, DontEnum);
-    m_numberPrototype->putDirectFunctionWithoutTransition(exec->globalData(), exec->propertyNames().constructor, numberConstructor, DontEnum);
-    m_datePrototype->putDirectFunctionWithoutTransition(exec->globalData(), exec->propertyNames().constructor, dateConstructor, DontEnum);
-    m_regExpPrototype->putDirectFunctionWithoutTransition(exec->globalData(), exec->propertyNames().constructor, m_regExpConstructor.get(), DontEnum);
-    errorPrototype->putDirectFunctionWithoutTransition(exec->globalData(), exec->propertyNames().constructor, m_errorConstructor.get(), DontEnum);
-
-    putDirectFunctionWithoutTransition(exec->globalData(), Identifier(exec, "Object"), objectConstructor, DontEnum);
-    putDirectFunctionWithoutTransition(exec->globalData(), Identifier(exec, "Function"), functionConstructor, DontEnum);
-    putDirectFunctionWithoutTransition(exec->globalData(), Identifier(exec, "Array"), arrayConstructor, DontEnum);
-    putDirectFunctionWithoutTransition(exec->globalData(), Identifier(exec, "Boolean"), booleanConstructor, DontEnum);
-    putDirectFunctionWithoutTransition(exec->globalData(), Identifier(exec, "String"), stringConstructor, DontEnum);
-    putDirectFunctionWithoutTransition(exec->globalData(), Identifier(exec, "Number"), numberConstructor, DontEnum);
-    putDirectFunctionWithoutTransition(exec->globalData(), Identifier(exec, "Date"), dateConstructor, DontEnum);
-    putDirectFunctionWithoutTransition(exec->globalData(), Identifier(exec, "RegExp"), m_regExpConstructor.get(), DontEnum);
-    putDirectFunctionWithoutTransition(exec->globalData(), Identifier(exec, "Error"), m_errorConstructor.get(), DontEnum);
-    putDirectFunctionWithoutTransition(exec->globalData(), Identifier(exec, "EvalError"), m_evalErrorConstructor.get(), DontEnum);
-    putDirectFunctionWithoutTransition(exec->globalData(), Identifier(exec, "RangeError"), m_rangeErrorConstructor.get(), DontEnum);
-    putDirectFunctionWithoutTransition(exec->globalData(), Identifier(exec, "ReferenceError"), m_referenceErrorConstructor.get(), DontEnum);
-    putDirectFunctionWithoutTransition(exec->globalData(), Identifier(exec, "SyntaxError"), m_syntaxErrorConstructor.get(), DontEnum);
-    putDirectFunctionWithoutTransition(exec->globalData(), Identifier(exec, "TypeError"), m_typeErrorConstructor.get(), DontEnum);
-    putDirectFunctionWithoutTransition(exec->globalData(), Identifier(exec, "URIError"), m_URIErrorConstructor.get(), DontEnum);
-
-    m_evalFunction.set(exec->globalData(), this, new (exec) JSFunction(exec, this, m_functionStructure.get(), 1, exec->propertyNames().eval, globalFuncEval));
-    putDirectFunctionWithoutTransition(exec, m_evalFunction.get(), DontEnum);
+#undef PUT_CONSTRUCTOR_FOR_SIMPLE_TYPE
+    PrototypeMap& prototypeMap = vm.prototypeMap;
+    Structure* iteratorResultStructure = prototypeMap.emptyObjectStructureForPrototype(m_objectPrototype.get(), JSFinalObject::defaultInlineCapacity());
+    PropertyOffset offset;
+    iteratorResultStructure = Structure::addPropertyTransition(vm, iteratorResultStructure, vm.propertyNames->done, 0, 0, offset);
+    iteratorResultStructure = Structure::addPropertyTransition(vm, iteratorResultStructure, vm.propertyNames->value, 0, 0, offset);
+    m_iteratorResultStructure.set(vm, this, iteratorResultStructure);

 
 

+    m_evalFunction.set(vm, this, JSFunction::create(vm, this, 1, vm.propertyNames->eval.string(), globalFuncEval));
+    putDirectWithoutTransition(vm, vm.propertyNames->eval, m_evalFunction.get(), DontEnum);
+
+    putDirectWithoutTransition(vm, vm.propertyNames->JSON, JSONObject::create(vm, JSONObject::createStructure(vm, this, m_objectPrototype.get())), DontEnum);
+    putDirectWithoutTransition(vm, vm.propertyNames->Math, MathObject::create(vm, this, MathObject::createStructure(vm, this, m_objectPrototype.get())), DontEnum);
+    
+    std::array<InternalFunction*, NUMBER_OF_TYPED_ARRAY_TYPES> typedArrayConstructors;
+    typedArrayConstructors[toIndex(TypeInt8)] = JSInt8ArrayConstructor::create(vm, JSInt8ArrayConstructor::createStructure(vm, this, m_functionPrototype.get()), m_typedArrays[toIndex(TypeInt8)].prototype.get(), "Int8Array");
+    typedArrayConstructors[toIndex(TypeInt16)] = JSInt16ArrayConstructor::create(vm, JSInt16ArrayConstructor::createStructure(vm, this, m_functionPrototype.get()), m_typedArrays[toIndex(TypeInt16)].prototype.get(), "Int16Array");
+    typedArrayConstructors[toIndex(TypeInt32)] = JSInt32ArrayConstructor::create(vm, JSInt32ArrayConstructor::createStructure(vm, this, m_functionPrototype.get()), m_typedArrays[toIndex(TypeInt32)].prototype.get(), "Int32Array");
+    typedArrayConstructors[toIndex(TypeUint8)] = JSUint8ArrayConstructor::create(vm, JSUint8ArrayConstructor::createStructure(vm, this, m_functionPrototype.get()), m_typedArrays[toIndex(TypeUint8)].prototype.get(), "Uint8Array");
+    typedArrayConstructors[toIndex(TypeUint8Clamped)] = JSUint8ClampedArrayConstructor::create(vm, JSUint8ClampedArrayConstructor::createStructure(vm, this, m_functionPrototype.get()), m_typedArrays[toIndex(TypeUint8Clamped)].prototype.get(), "Uint8ClampedArray");
+    typedArrayConstructors[toIndex(TypeUint16)] = JSUint16ArrayConstructor::create(vm, JSUint16ArrayConstructor::createStructure(vm, this, m_functionPrototype.get()), m_typedArrays[toIndex(TypeUint16)].prototype.get(), "Uint16Array");
+    typedArrayConstructors[toIndex(TypeUint32)] = JSUint32ArrayConstructor::create(vm, JSUint32ArrayConstructor::createStructure(vm, this, m_functionPrototype.get()), m_typedArrays[toIndex(TypeUint32)].prototype.get(), "Uint32Array");
+    typedArrayConstructors[toIndex(TypeFloat32)] = JSFloat32ArrayConstructor::create(vm, JSFloat32ArrayConstructor::createStructure(vm, this, m_functionPrototype.get()), m_typedArrays[toIndex(TypeFloat32)].prototype.get(), "Float32Array");
+    typedArrayConstructors[toIndex(TypeFloat64)] = JSFloat64ArrayConstructor::create(vm, JSFloat64ArrayConstructor::createStructure(vm, this, m_functionPrototype.get()), m_typedArrays[toIndex(TypeFloat64)].prototype.get(), "Float64Array");
+    typedArrayConstructors[toIndex(TypeDataView)] = JSDataViewConstructor::create(vm, JSDataViewConstructor::createStructure(vm, this, m_functionPrototype.get()), m_typedArrays[toIndex(TypeDataView)].prototype.get(), "DataView");
+
+    for (unsigned typedArrayIndex = NUMBER_OF_TYPED_ARRAY_TYPES; typedArrayIndex--;) {
+        m_typedArrays[typedArrayIndex].prototype->putDirectWithoutTransition(vm, vm.propertyNames->constructor, typedArrayConstructors[typedArrayIndex], DontEnum);
+        putDirectWithoutTransition(vm, Identifier(exec, typedArrayConstructors[typedArrayIndex]->name(exec)), typedArrayConstructors[typedArrayIndex], DontEnum);
+    }
+    
+    JSFunction* builtinLog = JSFunction::create(vm, this, 1, vm.propertyNames->emptyIdentifier.string(), globalFuncBuiltinLog);

     GlobalPropertyInfo staticGlobals[] = {
     GlobalPropertyInfo staticGlobals[] = {

-        GlobalPropertyInfo(Identifier(exec, "Math"), new (exec) MathObject(exec, this, MathObject::createStructure(exec->globalData(), m_objectPrototype.get())), DontEnum | DontDelete),
-        GlobalPropertyInfo(Identifier(exec, "NaN"), jsNaN(), DontEnum | DontDelete | ReadOnly),
-        GlobalPropertyInfo(Identifier(exec, "Infinity"), jsNumber(Inf), DontEnum | DontDelete | ReadOnly),
-        GlobalPropertyInfo(Identifier(exec, "undefined"), jsUndefined(), DontEnum | DontDelete | ReadOnly),
-        GlobalPropertyInfo(Identifier(exec, "JSON"), new (exec) JSONObject(this, JSONObject::createStructure(exec->globalData(), m_objectPrototype.get())), DontEnum | DontDelete)
+        GlobalPropertyInfo(vm.propertyNames->NaN, jsNaN(), DontEnum | DontDelete | ReadOnly),
+        GlobalPropertyInfo(vm.propertyNames->Infinity, jsNumber(std::numeric_limits<double>::infinity()), DontEnum | DontDelete | ReadOnly),
+        GlobalPropertyInfo(vm.propertyNames->undefinedKeyword, jsUndefined(), DontEnum | DontDelete | ReadOnly),
+        GlobalPropertyInfo(vm.propertyNames->undefinedPrivateName, jsUndefined(), DontEnum | DontDelete | ReadOnly),
+        GlobalPropertyInfo(vm.propertyNames->ObjectPrivateName, objectConstructor, DontEnum | DontDelete | ReadOnly),
+        GlobalPropertyInfo(vm.propertyNames->TypeErrorPrivateName, m_typeErrorConstructor.get(), DontEnum | DontDelete | ReadOnly),
+        GlobalPropertyInfo(vm.propertyNames->BuiltinLogPrivateName, builtinLog, DontEnum | DontDelete | ReadOnly)

     };
     addStaticGlobals(staticGlobals, WTF_ARRAY_LENGTH(staticGlobals));
     };
     addStaticGlobals(staticGlobals, WTF_ARRAY_LENGTH(staticGlobals));

+    
+    m_specialPointers[Special::CallFunction] = m_callFunction.get();
+    m_specialPointers[Special::ApplyFunction] = m_applyFunction.get();
+    m_specialPointers[Special::ObjectConstructor] = objectConstructor;
+    m_specialPointers[Special::ArrayConstructor] = arrayConstructor;
+
+    ConsolePrototype* consolePrototype = ConsolePrototype::create(vm, this, ConsolePrototype::createStructure(vm, this, m_objectPrototype.get()));
+    m_consoleStructure.set(vm, this, JSConsole::createStructure(vm, this, consolePrototype));
+    JSConsole* consoleObject = JSConsole::create(vm, m_consoleStructure.get());
+    putDirectWithoutTransition(vm, Identifier(exec, "console"), consoleObject, DontEnum);
+
+    if (m_experimentsEnabled) {
+        NamePrototype* privateNamePrototype = NamePrototype::create(exec, NamePrototype::createStructure(vm, this, m_objectPrototype.get()));
+        m_privateNameStructure.set(vm, this, NameInstance::createStructure(vm, this, privateNamePrototype));
+
+        JSCell* privateNameConstructor = NameConstructor::create(vm, NameConstructor::createStructure(vm, this, m_functionPrototype.get()), privateNamePrototype);
+        privateNamePrototype->putDirectWithoutTransition(vm, vm.propertyNames->constructor, privateNameConstructor, DontEnum);
+        putDirectWithoutTransition(vm, Identifier(exec, "Name"), privateNameConstructor, DontEnum);
+    }

 
 

-    resetPrototype(exec->globalData(), prototype);
+    resetPrototype(vm, prototype);

 }
 
 }
 

-// Set prototype, and also insert the object prototype at the end of the chain.
-void JSGlobalObject::resetPrototype(JSGlobalData& globalData, JSValue prototype)
+// Private namespace for helpers for JSGlobalObject::haveABadTime()
+namespace {
+
+class ObjectsWithBrokenIndexingFinder : public MarkedBlock::VoidFunctor {
+public:
+    ObjectsWithBrokenIndexingFinder(MarkedArgumentBuffer&, JSGlobalObject*);
+    void operator()(JSCell*);
+
+private:
+    MarkedArgumentBuffer& m_foundObjects;
+    JSGlobalObject* m_globalObject;
+};
+
+ObjectsWithBrokenIndexingFinder::ObjectsWithBrokenIndexingFinder(
+    MarkedArgumentBuffer& foundObjects, JSGlobalObject* globalObject)
+    : m_foundObjects(foundObjects)
+    , m_globalObject(globalObject)

 {
 {

-    setPrototype(globalData, prototype);
+}

 
 

-    JSObject* oldLastInPrototypeChain = lastInPrototypeChain(this);
-    JSObject* objectPrototype = m_objectPrototype.get();
-    if (oldLastInPrototypeChain != objectPrototype)
-        oldLastInPrototypeChain->setPrototype(globalData, objectPrototype);
+inline bool hasBrokenIndexing(JSObject* object)
+{
+    // This will change if we have more indexing types.
+    IndexingType type = object->indexingType();
+    // This could be made obviously more efficient, but isn't made so right now, because
+    // we expect this to be an unlikely slow path anyway.
+    return hasUndecided(type) || hasInt32(type) || hasDouble(type) || hasContiguous(type) || hasArrayStorage(type);

 }
 
 }
 

-void JSGlobalObject::visitChildren(SlotVisitor& visitor)
+void ObjectsWithBrokenIndexingFinder::operator()(JSCell* cell)

 {
 {

-    ASSERT_GC_OBJECT_INHERITS(this, &s_info);
-    COMPILE_ASSERT(StructureFlags & OverridesVisitChildren, OverridesVisitChildrenWithoutSettingFlag);
-    ASSERT(structure()->typeInfo().overridesVisitChildren());
-    JSVariableObject::visitChildren(visitor);
-
-    visitIfNeeded(visitor, &m_globalScopeChain);
-    visitIfNeeded(visitor, &m_methodCallDummy);
-
-    visitIfNeeded(visitor, &m_regExpConstructor);
-    visitIfNeeded(visitor, &m_errorConstructor);
-    visitIfNeeded(visitor, &m_evalErrorConstructor);
-    visitIfNeeded(visitor, &m_rangeErrorConstructor);
-    visitIfNeeded(visitor, &m_referenceErrorConstructor);
-    visitIfNeeded(visitor, &m_syntaxErrorConstructor);
-    visitIfNeeded(visitor, &m_typeErrorConstructor);
-    visitIfNeeded(visitor, &m_URIErrorConstructor);
-
-    visitIfNeeded(visitor, &m_evalFunction);
-    visitIfNeeded(visitor, &m_callFunction);
-    visitIfNeeded(visitor, &m_applyFunction);
-
-    visitIfNeeded(visitor, &m_objectPrototype);
-    visitIfNeeded(visitor, &m_functionPrototype);
-    visitIfNeeded(visitor, &m_arrayPrototype);
-    visitIfNeeded(visitor, &m_booleanPrototype);
-    visitIfNeeded(visitor, &m_stringPrototype);
-    visitIfNeeded(visitor, &m_numberPrototype);
-    visitIfNeeded(visitor, &m_datePrototype);
-    visitIfNeeded(visitor, &m_regExpPrototype);
-
-    visitIfNeeded(visitor, &m_argumentsStructure);
-    visitIfNeeded(visitor, &m_arrayStructure);
-    visitIfNeeded(visitor, &m_booleanObjectStructure);
-    visitIfNeeded(visitor, &m_callbackConstructorStructure);
-    visitIfNeeded(visitor, &m_callbackFunctionStructure);
-    visitIfNeeded(visitor, &m_callbackObjectStructure);
-    visitIfNeeded(visitor, &m_dateStructure);
-    visitIfNeeded(visitor, &m_emptyObjectStructure);
-    visitIfNeeded(visitor, &m_nullPrototypeObjectStructure);
-    visitIfNeeded(visitor, &m_errorStructure);
-    visitIfNeeded(visitor, &m_functionStructure);
-    visitIfNeeded(visitor, &m_numberObjectStructure);
-    visitIfNeeded(visitor, &m_regExpMatchesArrayStructure);
-    visitIfNeeded(visitor, &m_regExpStructure);
-    visitIfNeeded(visitor, &m_stringObjectStructure);
-    visitIfNeeded(visitor, &m_internalFunctionStructure);
-
-    if (m_registerArray) {
-        // Outside the execution of global code, when our variables are torn off,
-        // we can mark the torn-off array.
-        visitor.appendValues(m_registerArray.get(), m_registerArraySize);
-    } else if (m_registers) {
-        // During execution of global code, when our variables are in the register file,
-        // the symbol table tells us how many variables there are, and registers
-        // points to where they end, and the registers used for execution begin.
-        visitor.appendValues(m_registers - symbolTable().size(), symbolTable().size());
+    if (!cell->isObject())
+        return;
+    
+    JSObject* object = asObject(cell);
+
+    // Run this filter first, since it's cheap, and ought to filter out a lot of objects.
+    if (!hasBrokenIndexing(object))
+        return;
+    
+    // We only want to have a bad time in the affected global object, not in the entire
+    // VM. But we have to be careful, since there may be objects that claim to belong to
+    // a different global object that have prototypes from our global object.
+    bool foundGlobalObject = false;
+    for (JSObject* current = object; ;) {
+        if (current->globalObject() == m_globalObject) {
+            foundGlobalObject = true;
+            break;
+        }
+        
+        JSValue prototypeValue = current->prototype();
+        if (prototypeValue.isNull())
+            break;
+        current = asObject(prototypeValue);

     }
     }

+    if (!foundGlobalObject)
+        return;
+    
+    m_foundObjects.append(object);

 }
 
 }
 

-ExecState* JSGlobalObject::globalExec()
+} // end private namespace for helpers for JSGlobalObject::haveABadTime()
+
+void JSGlobalObject::haveABadTime(VM& vm)

 {
 {

-    return CallFrame::create(m_globalCallFrame + RegisterFile::CallFrameHeaderSize);
+    ASSERT(&vm == &this->vm());
+    
+    if (isHavingABadTime())
+        return;
+    
+    // Make sure that all allocations or indexed storage transitions that are inlining
+    // the assumption that it's safe to transition to a non-SlowPut array storage don't
+    // do so anymore.
+    m_havingABadTimeWatchpoint->fireAll();
+    ASSERT(isHavingABadTime()); // The watchpoint is what tells us that we're having a bad time.
+    
+    // Make sure that all JSArray allocations that load the appropriate structure from
+    // this object now load a structure that uses SlowPut.
+    for (unsigned i = 0; i < NumberOfIndexingShapes; ++i)
+        m_arrayStructureForIndexingShapeDuringAllocation[i].set(vm, this, originalArrayStructureForIndexingType(ArrayWithSlowPutArrayStorage));
+    
+    // Make sure that all objects that have indexed storage switch to the slow kind of
+    // indexed storage.
+    MarkedArgumentBuffer foundObjects; // Use MarkedArgumentBuffer because switchToSlowPutArrayStorage() may GC.
+    ObjectsWithBrokenIndexingFinder finder(foundObjects, this);
+    {
+        HeapIterationScope iterationScope(vm.heap);
+        vm.heap.objectSpace().forEachLiveCell(iterationScope, finder);
+    }
+    while (!foundObjects.isEmpty()) {
+        JSObject* object = asObject(foundObjects.last());
+        foundObjects.removeLast();
+        ASSERT(hasBrokenIndexing(object));
+        object->switchToSlowPutArrayStorage(vm);
+    }

 }
 
 }
 

-bool JSGlobalObject::isDynamicScope(bool&) const
+bool JSGlobalObject::objectPrototypeIsSane()

 {
 {

-    return true;
+    return !hasIndexedProperties(m_objectPrototype->indexingType())
+        && m_objectPrototype->prototype().isNull();

 }
 
 }
 

-void JSGlobalObject::disableEval()
+bool JSGlobalObject::arrayPrototypeChainIsSane()

 {
 {

-    ASSERT(m_isEvalEnabled);
-    m_isEvalEnabled = false;
+    return !hasIndexedProperties(m_arrayPrototype->indexingType())
+        && m_arrayPrototype->prototype() == m_objectPrototype.get()
+        && objectPrototypeIsSane();

 }
 
 }
 

-void JSGlobalObject::copyGlobalsFrom(RegisterFile& registerFile)
+bool JSGlobalObject::stringPrototypeChainIsSane()

 {
 {

-    ASSERT(!m_registerArray);
-    ASSERT(!m_registerArraySize);
-
-    int numGlobals = registerFile.numGlobals();
-    if (!numGlobals) {
-        m_registers = 0;
-        return;
-    }
+    return !hasIndexedProperties(m_stringPrototype->indexingType())
+        && m_stringPrototype->prototype() == m_objectPrototype.get()
+        && objectPrototypeIsSane();
+}

 
 

-    OwnArrayPtr<WriteBarrier<Unknown> > registerArray = copyRegisterArray(globalData(), reinterpret_cast<WriteBarrier<Unknown>*>(registerFile.lastGlobal()), numGlobals, numGlobals);
-    WriteBarrier<Unknown>* registers = registerArray.get() + numGlobals;
-    setRegisters(registers, registerArray.release(), numGlobals);
+void JSGlobalObject::createThrowTypeError(VM& vm)
+{
+    JSFunction* thrower = JSFunction::create(vm, this, 0, String(), globalFuncThrowTypeError);
+    GetterSetter* getterSetter = GetterSetter::create(vm);
+    getterSetter->setGetter(vm, thrower);
+    getterSetter->setSetter(vm, thrower);
+    m_throwTypeErrorGetterSetter.set(vm, this, getterSetter);

 }
 
 }
 

-void JSGlobalObject::copyGlobalsTo(RegisterFile& registerFile)
+// Set prototype, and also insert the object prototype at the end of the chain.
+void JSGlobalObject::resetPrototype(VM& vm, JSValue prototype)

 {
 {

-    JSGlobalObject* lastGlobalObject = registerFile.globalObject();
-    if (lastGlobalObject && lastGlobalObject != this)
-        lastGlobalObject->copyGlobalsFrom(registerFile);
+    setPrototype(vm, prototype);

 
 

-    registerFile.setGlobalObject(this);
-    registerFile.setNumGlobals(symbolTable().size());
+    JSObject* oldLastInPrototypeChain = lastInPrototypeChain(this);
+    JSObject* objectPrototype = m_objectPrototype.get();
+    if (oldLastInPrototypeChain != objectPrototype)
+        oldLastInPrototypeChain->setPrototype(vm, objectPrototype);

 
 

-    if (m_registerArray) {
-        // The register file is always a gc root so no barrier is needed here
-        memcpy(registerFile.start() - m_registerArraySize, m_registerArray.get(), m_registerArraySize * sizeof(WriteBarrier<Unknown>));
-        setRegisters(reinterpret_cast<WriteBarrier<Unknown>*>(registerFile.start()), nullptr, 0);
-    }
+    // Whenever we change the prototype of the global object, we need to create a new JSProxy with the correct prototype.
+    setGlobalThis(vm, JSProxy::create(vm, JSProxy::createStructure(vm, this, prototype, PureForwardingProxyType), this));

 }
 
 }
 

-void JSGlobalObject::resizeRegisters(int oldSize, int newSize)
-{
-    ASSERT(oldSize <= newSize);
-    if (newSize == oldSize)
-        return;
-    ASSERT(newSize && newSize > oldSize);
-    if (m_registerArray || !m_registers) {
-        ASSERT(static_cast<size_t>(oldSize) == m_registerArraySize);
-        OwnArrayPtr<WriteBarrier<Unknown> > registerArray = adoptArrayPtr(new WriteBarrier<Unknown>[newSize]);
-        for (int i = 0; i < oldSize; i++)
-            registerArray[newSize - oldSize + i].set(globalData(), this, m_registerArray[i].get());
-        WriteBarrier<Unknown>* registers = registerArray.get() + newSize;
-        setRegisters(registers, registerArray.release(), newSize);
-    } else {
-        ASSERT(static_cast<size_t>(newSize) < globalData().interpreter->registerFile().maxGlobals());
-        globalData().interpreter->registerFile().setNumGlobals(newSize);
+void JSGlobalObject::visitChildren(JSCell* cell, SlotVisitor& visitor)
+{ 
+    JSGlobalObject* thisObject = jsCast<JSGlobalObject*>(cell);
+    ASSERT_GC_OBJECT_INHERITS(thisObject, info());
+    COMPILE_ASSERT(StructureFlags & OverridesVisitChildren, OverridesVisitChildrenWithoutSettingFlag);
+    ASSERT(thisObject->structure()->typeInfo().overridesVisitChildren());
+    Base::visitChildren(thisObject, visitor);
+
+    visitor.append(&thisObject->m_globalThis);
+
+    visitor.append(&thisObject->m_regExpConstructor);
+    visitor.append(&thisObject->m_errorConstructor);
+    visitor.append(&thisObject->m_evalErrorConstructor);
+    visitor.append(&thisObject->m_rangeErrorConstructor);
+    visitor.append(&thisObject->m_referenceErrorConstructor);
+    visitor.append(&thisObject->m_syntaxErrorConstructor);
+    visitor.append(&thisObject->m_typeErrorConstructor);
+    visitor.append(&thisObject->m_URIErrorConstructor);
+    visitor.append(&thisObject->m_objectConstructor);
+#if ENABLE(PROMISES)
+    visitor.append(&thisObject->m_promiseConstructor);
+#endif
+
+    visitor.append(&thisObject->m_evalFunction);
+    visitor.append(&thisObject->m_callFunction);
+    visitor.append(&thisObject->m_applyFunction);
+    visitor.append(&thisObject->m_throwTypeErrorGetterSetter);
+
+    visitor.append(&thisObject->m_objectPrototype);
+    visitor.append(&thisObject->m_functionPrototype);
+    visitor.append(&thisObject->m_arrayPrototype);
+    visitor.append(&thisObject->m_errorPrototype);
+#if ENABLE(PROMISES)
+    visitor.append(&thisObject->m_promisePrototype);
+#endif
+
+    visitor.append(&thisObject->m_withScopeStructure);
+    visitor.append(&thisObject->m_strictEvalActivationStructure);
+    visitor.append(&thisObject->m_activationStructure);
+    visitor.append(&thisObject->m_nameScopeStructure);
+    visitor.append(&thisObject->m_argumentsStructure);
+    for (unsigned i = 0; i < NumberOfIndexingShapes; ++i)
+        visitor.append(&thisObject->m_originalArrayStructureForIndexingShape[i]);
+    for (unsigned i = 0; i < NumberOfIndexingShapes; ++i)
+        visitor.append(&thisObject->m_arrayStructureForIndexingShapeDuringAllocation[i]);
+    visitor.append(&thisObject->m_booleanObjectStructure);
+    visitor.append(&thisObject->m_callbackConstructorStructure);
+    visitor.append(&thisObject->m_callbackFunctionStructure);
+    visitor.append(&thisObject->m_callbackObjectStructure);
+#if JSC_OBJC_API_ENABLED
+    visitor.append(&thisObject->m_objcCallbackFunctionStructure);
+    visitor.append(&thisObject->m_objcWrapperObjectStructure);
+#endif
+    visitor.append(&thisObject->m_nullPrototypeObjectStructure);
+    visitor.append(&thisObject->m_errorStructure);
+    visitor.append(&thisObject->m_functionStructure);
+    visitor.append(&thisObject->m_boundFunctionStructure);
+    visitor.append(&thisObject->m_namedFunctionStructure);
+    visitor.append(&thisObject->m_privateNameStructure);
+    visitor.append(&thisObject->m_regExpMatchesArrayStructure);
+    visitor.append(&thisObject->m_regExpStructure);
+    visitor.append(&thisObject->m_consoleStructure);
+    visitor.append(&thisObject->m_internalFunctionStructure);
+
+#if ENABLE(PROMISES)
+    visitor.append(&thisObject->m_promiseStructure);
+#endif // ENABLE(PROMISES)
+
+#define VISIT_SIMPLE_TYPE(CapitalName, lowerName, properName, instanceType, jsName) \
+    visitor.append(&thisObject->m_ ## lowerName ## Prototype); \
+    visitor.append(&thisObject->m_ ## properName ## Structure); \
+
+    FOR_EACH_SIMPLE_BUILTIN_TYPE(VISIT_SIMPLE_TYPE)
+
+#undef VISIT_SIMPLE_TYPE
+
+    for (unsigned i = NUMBER_OF_TYPED_ARRAY_TYPES; i--;) {
+        visitor.append(&thisObject->m_typedArrays[i].prototype);
+        visitor.append(&thisObject->m_typedArrays[i].structure);

     }
     }

+}

 
 

-    for (int i = -newSize; i < -oldSize; ++i)
-        m_registers[i].setUndefined();
+JSValue JSGlobalObject::toThis(JSCell*, ExecState* exec, ECMAMode ecmaMode)
+{
+    if (ecmaMode == StrictMode)
+        return jsUndefined();
+    return exec->globalThisValue();

 }
 
 }
 

-void* JSGlobalObject::operator new(size_t size, JSGlobalData* globalData)
+ExecState* JSGlobalObject::globalExec()

 {
 {

-    return globalData->heap.allocate(size);
+    return CallFrame::create(m_globalCallFrame);

 }
 
 void JSGlobalObject::addStaticGlobals(GlobalPropertyInfo* globals, int count)
 {
 }
 
 void JSGlobalObject::addStaticGlobals(GlobalPropertyInfo* globals, int count)
 {

-    size_t oldSize = m_registerArraySize;
-    size_t newSize = oldSize + count;
-    OwnArrayPtr<WriteBarrier<Unknown> > registerArray = adoptArrayPtr(new WriteBarrier<Unknown>[newSize]);
-    if (m_registerArray) {
-        // memcpy is safe here as we're copying barriers we already own from the existing array
-        memcpy(registerArray.get() + count, m_registerArray.get(), oldSize * sizeof(Register));
-    }
+    addRegisters(count);

 
 

-    WriteBarrier<Unknown>* registers = registerArray.get() + newSize;
-    setRegisters(registers, registerArray.release(), newSize);
-
-    for (int i = 0, index = -static_cast<int>(oldSize) - 1; i < count; ++i, --index) {
+    for (int i = 0; i < count; ++i) {

         GlobalPropertyInfo& global = globals[i];
         ASSERT(global.attributes & DontDelete);
         GlobalPropertyInfo& global = globals[i];
         ASSERT(global.attributes & DontDelete);

+        
+        int index = symbolTable()->size();

         SymbolTableEntry newEntry(index, global.attributes);
         SymbolTableEntry newEntry(index, global.attributes);

-        symbolTable().add(global.identifier.impl(), newEntry);
-        registerAt(index).set(globalData(), this, global.value);
+        symbolTable()->add(global.identifier.impl(), newEntry);
+        registerAt(index).set(vm(), this, global.value);

     }
 }
 
     }
 }
 

-bool JSGlobalObject::getOwnPropertySlot(ExecState* exec, const Identifier& propertyName, PropertySlot& slot)
+bool JSGlobalObject::getOwnPropertySlot(JSObject* object, ExecState* exec, PropertyName propertyName, PropertySlot& slot)

 {
 {

-    if (getStaticFunctionSlot<JSVariableObject>(exec, ExecState::globalObjectTable(exec), this, propertyName, slot))
+    JSGlobalObject* thisObject = jsCast<JSGlobalObject*>(object);
+    if (getStaticFunctionSlot<Base>(exec, ExecState::globalObjectTable(exec->vm()), thisObject, propertyName, slot))

         return true;
         return true;

-    return symbolTableGet(propertyName, slot);
+    return symbolTableGet(thisObject, propertyName, slot);

 }
 
 }
 

-bool JSGlobalObject::getOwnPropertyDescriptor(ExecState* exec, const Identifier& propertyName, PropertyDescriptor& descriptor)
+void JSGlobalObject::clearRareData(JSCell* cell)

 {
 {

-    if (getStaticFunctionDescriptor<JSVariableObject>(exec, ExecState::globalObjectTable(exec), this, propertyName, descriptor))
-        return true;
-    return symbolTableGet(propertyName, descriptor);
+    jsCast<JSGlobalObject*>(cell)->m_rareData.clear();
+}
+
+void slowValidateCell(JSGlobalObject* globalObject)
+{
+    RELEASE_ASSERT(globalObject->isGlobalObject());
+    ASSERT_GC_OBJECT_INHERITS(globalObject, JSGlobalObject::info());

 }
 
 }
 

-void JSGlobalObject::WeakMapsFinalizer::finalize(Handle<Unknown> handle, void*)
+UnlinkedProgramCodeBlock* JSGlobalObject::createProgramCodeBlock(CallFrame* callFrame, ProgramExecutable* executable, JSObject** exception)

 {
 {

-    JSGlobalObject* globalObject = asGlobalObject(handle.get());
-    globalObject->m_weakMaps.clear();
+    ParserError error;
+    JSParserStrictness strictness = executable->isStrictMode() ? JSParseStrict : JSParseNormal;
+    DebuggerMode debuggerMode = hasDebugger() ? DebuggerOn : DebuggerOff;
+    ProfilerMode profilerMode = hasProfiler() ? ProfilerOn : ProfilerOff;
+    UnlinkedProgramCodeBlock* unlinkedCodeBlock = vm().codeCache()->getProgramCodeBlock(vm(), executable, executable->source(), strictness, debuggerMode, profilerMode, error);
+
+    if (hasDebugger())
+        debugger()->sourceParsed(callFrame, executable->source().provider(), error.m_line, error.m_message);
+
+    if (error.m_type != ParserError::ErrorNone) {
+        *exception = error.toErrorObject(this, executable->source());
+        return 0;
+    }
+    
+    return unlinkedCodeBlock;

 }
 
 }
 

-JSGlobalObject::WeakMapsFinalizer* JSGlobalObject::weakMapsFinalizer()
+UnlinkedEvalCodeBlock* JSGlobalObject::createEvalCodeBlock(CallFrame* callFrame, EvalExecutable* executable)

 {
 {

-    static WeakMapsFinalizer* finalizer = new WeakMapsFinalizer();
-    return finalizer;
+    ParserError error;
+    JSParserStrictness strictness = executable->isStrictMode() ? JSParseStrict : JSParseNormal;
+    DebuggerMode debuggerMode = hasDebugger() ? DebuggerOn : DebuggerOff;
+    ProfilerMode profilerMode = hasProfiler() ? ProfilerOn : ProfilerOff;
+    UnlinkedEvalCodeBlock* unlinkedCodeBlock = vm().codeCache()->getEvalCodeBlock(vm(), executable, executable->source(), strictness, debuggerMode, profilerMode, error);
+
+    if (hasDebugger())
+        debugger()->sourceParsed(callFrame, executable->source().provider(), error.m_line, error.m_message);
+
+    if (error.m_type != ParserError::ErrorNone) {
+        throwVMError(callFrame, error.toErrorObject(this, executable->source()));
+        return 0;
+    }
+
+    return unlinkedCodeBlock;

 }
 
 }
 

-DynamicGlobalObjectScope::DynamicGlobalObjectScope(JSGlobalData& globalData, JSGlobalObject* dynamicGlobalObject)
-    : m_dynamicGlobalObjectSlot(globalData.dynamicGlobalObject)
-    , m_savedDynamicGlobalObject(m_dynamicGlobalObjectSlot)
+void JSGlobalObject::setRemoteDebuggingEnabled(bool enabled)

 {
 {

-    if (!m_dynamicGlobalObjectSlot) {
-#if ENABLE(ASSEMBLER)
-        if (ExecutableAllocator::underMemoryPressure())
-            globalData.recompileAllJSFunctions();
+#if ENABLE(REMOTE_INSPECTOR)
+    m_inspectorDebuggable->setRemoteDebuggingAllowed(enabled);
+#else
+    UNUSED_PARAM(enabled);

 #endif
 #endif

+}

 
 

-        m_dynamicGlobalObjectSlot = dynamicGlobalObject;
+bool JSGlobalObject::remoteDebuggingEnabled() const
+{
+#if ENABLE(REMOTE_INSPECTOR)
+    return m_inspectorDebuggable->remoteDebuggingAllowed();
+#else
+    return false;
+#endif
+}

 
 

-        // Reset the date cache between JS invocations to force the VM
-        // to observe time zone changes.
-        globalData.resetDateCache();
+#if ENABLE(WEB_REPLAY)
+void JSGlobalObject::setInputCursor(PassRefPtr<InputCursor> prpCursor)
+{
+    m_inputCursor = prpCursor;
+    ASSERT(m_inputCursor);
+
+    InputCursor& cursor = inputCursor();
+    // Save or set the random seed. This performed here rather than the constructor
+    // to avoid threading the input cursor through all the abstraction layers.
+    if (cursor.isCapturing())
+        cursor.appendInput<SetRandomSeed>(m_weakRandom.seedUnsafe());
+    else if (cursor.isReplaying()) {
+        if (SetRandomSeed* input = cursor.fetchInput<SetRandomSeed>())
+            m_weakRandom.initializeSeed(static_cast<unsigned>(input->randomSeed()));

     }
 }
     }
 }

+#endif

 
 

-void slowValidateCell(JSGlobalObject* globalObject)
+void JSGlobalObject::setName(const String& name)
+{
+    m_name = name;
+
+#if ENABLE(REMOTE_INSPECTOR)
+    m_inspectorDebuggable->update();
+#endif
+}
+
+void JSGlobalObject::queueMicrotask(PassRefPtr<Microtask> task)

 {
 {

-    if (!globalObject->isGlobalObject())
-        CRASH();
-    ASSERT_GC_OBJECT_INHERITS(globalObject, &JSGlobalObject::s_info);
+    if (globalObjectMethodTable()->queueTaskToEventLoop)
+        globalObjectMethodTable()->queueTaskToEventLoop(this, task);
+    else
+        WTFLogAlways("ERROR: Event loop not supported.");

 }
 
 } // namespace JSC
 }
 
 } // namespace JSC