Support for-of syntax
[WebKit-https.git] / Source / JavaScriptCore / runtime / JSGlobalObject.cpp
1 /*
2  * Copyright (C) 2007, 2008, 2009 Apple Inc. All rights reserved.
3  * Copyright (C) 2008 Cameron Zwarich (cwzwarich@uwaterloo.ca)
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  *
9  * 1.  Redistributions of source code must retain the above copyright
10  *     notice, this list of conditions and the following disclaimer. 
11  * 2.  Redistributions in binary form must reproduce the above copyright
12  *     notice, this list of conditions and the following disclaimer in the
13  *     documentation and/or other materials provided with the distribution. 
14  * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
15  *     its contributors may be used to endorse or promote products derived
16  *     from this software without specific prior written permission. 
17  *
18  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
19  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
20  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
21  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
22  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
23  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
24  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
25  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28  */
29
30 #include "config.h"
31 #include "JSGlobalObject.h"
32
33 #include "Arguments.h"
34 #include "ArrayConstructor.h"
35 #include "ArrayIteratorConstructor.h"
36 #include "ArrayIteratorPrototype.h"
37 #include "ArrayPrototype.h"
38 #include "BooleanConstructor.h"
39 #include "BooleanPrototype.h"
40 #include "CodeBlock.h"
41 #include "CodeCache.h"
42 #include "DateConstructor.h"
43 #include "DatePrototype.h"
44 #include "Debugger.h"
45 #include "Error.h"
46 #include "ErrorConstructor.h"
47 #include "ErrorPrototype.h"
48 #include "FunctionConstructor.h"
49 #include "FunctionPrototype.h"
50 #include "GetterSetter.h"
51 #include "HeapIterationScope.h"
52 #include "Interpreter.h"
53 #include "JSAPIWrapperObject.h"
54 #include "JSActivation.h"
55 #include "JSArrayBuffer.h"
56 #include "JSArrayBufferConstructor.h"
57 #include "JSArrayBufferPrototype.h"
58 #include "JSArrayIterator.h"
59 #include "JSBoundFunction.h"
60 #include "JSCallbackConstructor.h"
61 #include "JSCallbackFunction.h"
62 #include "JSCallbackObject.h"
63 #include "JSDataView.h"
64 #include "JSDataViewPrototype.h"
65 #include "JSFunction.h"
66 #include "JSGenericTypedArrayViewConstructorInlines.h"
67 #include "JSGenericTypedArrayViewInlines.h"
68 #include "JSGenericTypedArrayViewPrototypeInlines.h"
69 #include "JSGlobalObjectFunctions.h"
70 #include "JSLock.h"
71 #include "JSMap.h"
72 #include "JSNameScope.h"
73 #include "JSONObject.h"
74 #include "JSSet.h"
75 #include "JSTypedArrayConstructors.h"
76 #include "JSTypedArrayPrototypes.h"
77 #include "JSTypedArrays.h"
78 #include "JSWeakMap.h"
79 #include "JSWithScope.h"
80 #include "LegacyProfiler.h"
81 #include "Lookup.h"
82 #include "MapConstructor.h"
83 #include "MapPrototype.h"
84 #include "MathObject.h"
85 #include "NameConstructor.h"
86 #include "NameInstance.h"
87 #include "NamePrototype.h"
88 #include "NativeErrorConstructor.h"
89 #include "NativeErrorPrototype.h"
90 #include "NumberConstructor.h"
91 #include "NumberPrototype.h"
92 #include "ObjCCallbackFunction.h"
93 #include "ObjectConstructor.h"
94 #include "ObjectPrototype.h"
95 #include "Operations.h"
96 #include "ParserError.h"
97 #include "RegExpConstructor.h"
98 #include "RegExpMatchesArray.h"
99 #include "RegExpObject.h"
100 #include "RegExpPrototype.h"
101 #include "SetConstructor.h"
102 #include "SetPrototype.h"
103 #include "StrictEvalActivation.h"
104 #include "StringConstructor.h"
105 #include "StringPrototype.h"
106 #include "WeakMapConstructor.h"
107 #include "WeakMapPrototype.h"
108
109 #if ENABLE(PROMISES)
110 #include "JSPromise.h"
111 #include "JSPromiseCallback.h"
112 #include "JSPromiseConstructor.h"
113 #include "JSPromisePrototype.h"
114 #include "JSPromiseResolver.h"
115 #include "JSPromiseResolverConstructor.h"
116 #include "JSPromiseResolverPrototype.h"
117 #endif // ENABLE(PROMISES)
118
119 #include "JSGlobalObject.lut.h"
120
121 namespace JSC {
122
123 const ClassInfo JSGlobalObject::s_info = { "GlobalObject", &Base::s_info, 0, ExecState::globalObjectTable, CREATE_METHOD_TABLE(JSGlobalObject) };
124
125 const GlobalObjectMethodTable JSGlobalObject::s_globalObjectMethodTable = { &allowsAccessFrom, &supportsProfiling, &supportsRichSourceInfo, &shouldInterruptScript, &javaScriptExperimentsEnabled, 0 };
126
127 /* Source for JSGlobalObject.lut.h
128 @begin globalObjectTable
129   parseInt              globalFuncParseInt              DontEnum|Function 2
130   parseFloat            globalFuncParseFloat            DontEnum|Function 1
131   isNaN                 globalFuncIsNaN                 DontEnum|Function 1
132   isFinite              globalFuncIsFinite              DontEnum|Function 1
133   escape                globalFuncEscape                DontEnum|Function 1
134   unescape              globalFuncUnescape              DontEnum|Function 1
135   decodeURI             globalFuncDecodeURI             DontEnum|Function 1
136   decodeURIComponent    globalFuncDecodeURIComponent    DontEnum|Function 1
137   encodeURI             globalFuncEncodeURI             DontEnum|Function 1
138   encodeURIComponent    globalFuncEncodeURIComponent    DontEnum|Function 1
139 @end
140 */
141
142 JSGlobalObject::JSGlobalObject(VM& vm, Structure* structure, const GlobalObjectMethodTable* globalObjectMethodTable)
143     : Base(vm, structure, 0)
144     , m_masqueradesAsUndefinedWatchpoint(adoptRef(new WatchpointSet(InitializedWatching)))
145     , m_havingABadTimeWatchpoint(adoptRef(new WatchpointSet(InitializedWatching)))
146     , m_varInjectionWatchpoint(adoptRef(new WatchpointSet(InitializedWatching)))
147     , m_weakRandom(Options::forceWeakRandomSeed() ? Options::forcedWeakRandomSeed() : static_cast<unsigned>(randomNumber() * (std::numeric_limits<unsigned>::max() + 1.0)))
148     , m_evalEnabled(true)
149     , m_globalObjectMethodTable(globalObjectMethodTable ? globalObjectMethodTable : &s_globalObjectMethodTable)
150 {
151 }
152
153 JSGlobalObject::~JSGlobalObject()
154 {
155     if (m_debugger)
156         m_debugger->detach(this);
157
158     if (LegacyProfiler* profiler = vm().enabledProfiler())
159         profiler->stopProfiling(this);
160 }
161
162 void JSGlobalObject::destroy(JSCell* cell)
163 {
164     static_cast<JSGlobalObject*>(cell)->JSGlobalObject::~JSGlobalObject();
165 }
166
167 void JSGlobalObject::setGlobalThis(VM& vm, JSObject* globalThis)
168
169     m_globalThis.set(vm, this, globalThis);
170 }
171
172 void JSGlobalObject::init(JSObject* thisValue)
173 {
174     ASSERT(vm().currentThreadIsHoldingAPILock());
175
176     setGlobalThis(vm(), thisValue);
177     JSGlobalObject::globalExec()->init(0, 0, this, CallFrame::noCaller(), 0, 0);
178
179     m_debugger = 0;
180
181     reset(prototype());
182 }
183
184 void JSGlobalObject::put(JSCell* cell, ExecState* exec, PropertyName propertyName, JSValue value, PutPropertySlot& slot)
185 {
186     JSGlobalObject* thisObject = jsCast<JSGlobalObject*>(cell);
187     ASSERT(!Heap::heap(value) || Heap::heap(value) == Heap::heap(thisObject));
188
189     if (symbolTablePut(thisObject, exec, propertyName, value, slot.isStrictMode()))
190         return;
191     Base::put(thisObject, exec, propertyName, value, slot);
192 }
193
194 bool JSGlobalObject::defineOwnProperty(JSObject* object, ExecState* exec, PropertyName propertyName, const PropertyDescriptor& descriptor, bool shouldThrow)
195 {
196     JSGlobalObject* thisObject = jsCast<JSGlobalObject*>(object);
197     PropertySlot slot(thisObject);
198     // silently ignore attempts to add accessors aliasing vars.
199     if (descriptor.isAccessorDescriptor() && symbolTableGet(thisObject, propertyName, slot))
200         return false;
201     return Base::defineOwnProperty(thisObject, exec, propertyName, descriptor, shouldThrow);
202 }
203
204 int JSGlobalObject::addGlobalVar(const Identifier& ident, ConstantMode constantMode, FunctionMode functionMode)
205 {
206     ConcurrentJITLocker locker(symbolTable()->m_lock);
207     int index = symbolTable()->size(locker);
208     SymbolTableEntry newEntry(index, (constantMode == IsConstant) ? ReadOnly : 0);
209     if (functionMode == IsFunctionToSpecialize)
210         newEntry.attemptToWatch();
211     SymbolTable::Map::AddResult result = symbolTable()->add(locker, ident.impl(), newEntry);
212     if (result.isNewEntry)
213         addRegisters(1);
214     else {
215         result.iterator->value.notifyWrite();
216         index = result.iterator->value.getIndex();
217     }
218     return index;
219 }
220
221 static inline JSObject* lastInPrototypeChain(JSObject* object)
222 {
223     JSObject* o = object;
224     while (o->prototype().isObject())
225         o = asObject(o->prototype());
226     return o;
227 }
228
229 void JSGlobalObject::reset(JSValue prototype)
230 {
231     ExecState* exec = JSGlobalObject::globalExec();
232     VM& vm = exec->vm();
233
234     m_functionPrototype.set(vm, this, FunctionPrototype::create(vm, FunctionPrototype::createStructure(vm, this, jsNull()))); // The real prototype will be set once ObjectPrototype is created.
235     m_functionStructure.set(vm, this, JSFunction::createStructure(vm, this, m_functionPrototype.get()));
236     m_boundFunctionStructure.set(vm, this, JSBoundFunction::createStructure(vm, this, m_functionPrototype.get()));
237     m_namedFunctionStructure.set(vm, this, Structure::addPropertyTransition(vm, m_functionStructure.get(), vm.propertyNames->name, DontDelete | ReadOnly | DontEnum, 0, m_functionNameOffset));
238     m_internalFunctionStructure.set(vm, this, InternalFunction::createStructure(vm, this, m_functionPrototype.get()));
239     JSFunction* callFunction = 0;
240     JSFunction* applyFunction = 0;
241     m_functionPrototype->addFunctionProperties(exec, this, &callFunction, &applyFunction);
242     m_callFunction.set(vm, this, callFunction);
243     m_applyFunction.set(vm, this, applyFunction);
244     m_objectPrototype.set(vm, this, ObjectPrototype::create(vm, this, ObjectPrototype::createStructure(vm, this, jsNull())));
245     GetterSetter* protoAccessor = GetterSetter::create(vm);
246     protoAccessor->setGetter(vm, JSFunction::create(vm, this, 0, String(), globalFuncProtoGetter));
247     protoAccessor->setSetter(vm, JSFunction::create(vm, this, 0, String(), globalFuncProtoSetter));
248     m_objectPrototype->putDirectNonIndexAccessor(vm, vm.propertyNames->underscoreProto, protoAccessor, Accessor | DontEnum);
249     m_functionPrototype->structure()->setPrototypeWithoutTransition(vm, m_objectPrototype.get());
250     
251     m_typedArrays[toIndex(TypeInt8)].prototype.set(vm, this, JSInt8ArrayPrototype::create(exec, this, JSInt8ArrayPrototype::createStructure(vm, this, m_objectPrototype.get())));
252     m_typedArrays[toIndex(TypeInt16)].prototype.set(vm, this, JSInt16ArrayPrototype::create(exec, this, JSInt16ArrayPrototype::createStructure(vm, this, m_objectPrototype.get())));
253     m_typedArrays[toIndex(TypeInt32)].prototype.set(vm, this, JSInt32ArrayPrototype::create(exec, this, JSInt32ArrayPrototype::createStructure(vm, this, m_objectPrototype.get())));
254     m_typedArrays[toIndex(TypeUint8)].prototype.set(vm, this, JSUint8ArrayPrototype::create(exec, this, JSUint8ArrayPrototype::createStructure(vm, this, m_objectPrototype.get())));
255     m_typedArrays[toIndex(TypeUint8Clamped)].prototype.set(vm, this, JSUint8ClampedArrayPrototype::create(exec, this, JSUint8ClampedArrayPrototype::createStructure(vm, this, m_objectPrototype.get())));
256     m_typedArrays[toIndex(TypeUint16)].prototype.set(vm, this, JSUint16ArrayPrototype::create(exec, this, JSUint16ArrayPrototype::createStructure(vm, this, m_objectPrototype.get())));
257     m_typedArrays[toIndex(TypeUint32)].prototype.set(vm, this, JSUint32ArrayPrototype::create(exec, this, JSUint32ArrayPrototype::createStructure(vm, this, m_objectPrototype.get())));
258     m_typedArrays[toIndex(TypeFloat32)].prototype.set(vm, this, JSFloat32ArrayPrototype::create(exec, this, JSFloat32ArrayPrototype::createStructure(vm, this, m_objectPrototype.get())));
259     m_typedArrays[toIndex(TypeFloat64)].prototype.set(vm, this, JSFloat64ArrayPrototype::create(exec, this, JSFloat64ArrayPrototype::createStructure(vm, this, m_objectPrototype.get())));
260     m_typedArrays[toIndex(TypeDataView)].prototype.set(vm, this, JSDataViewPrototype::create(vm, JSDataViewPrototype::createStructure(vm, this, m_objectPrototype.get())));
261     
262     m_typedArrays[toIndex(TypeInt8)].structure.set(vm, this, JSInt8Array::createStructure(vm, this, m_typedArrays[toIndex(TypeInt8)].prototype.get()));
263     m_typedArrays[toIndex(TypeInt16)].structure.set(vm, this, JSInt16Array::createStructure(vm, this, m_typedArrays[toIndex(TypeInt16)].prototype.get()));
264     m_typedArrays[toIndex(TypeInt32)].structure.set(vm, this, JSInt32Array::createStructure(vm, this, m_typedArrays[toIndex(TypeInt32)].prototype.get()));
265     m_typedArrays[toIndex(TypeUint8)].structure.set(vm, this, JSUint8Array::createStructure(vm, this, m_typedArrays[toIndex(TypeUint8)].prototype.get()));
266     m_typedArrays[toIndex(TypeUint8Clamped)].structure.set(vm, this, JSUint8ClampedArray::createStructure(vm, this, m_typedArrays[toIndex(TypeUint8Clamped)].prototype.get()));
267     m_typedArrays[toIndex(TypeUint16)].structure.set(vm, this, JSUint16Array::createStructure(vm, this, m_typedArrays[toIndex(TypeUint16)].prototype.get()));
268     m_typedArrays[toIndex(TypeUint32)].structure.set(vm, this, JSUint32Array::createStructure(vm, this, m_typedArrays[toIndex(TypeUint32)].prototype.get()));
269     m_typedArrays[toIndex(TypeFloat32)].structure.set(vm, this, JSFloat32Array::createStructure(vm, this, m_typedArrays[toIndex(TypeFloat32)].prototype.get()));
270     m_typedArrays[toIndex(TypeFloat64)].structure.set(vm, this, JSFloat64Array::createStructure(vm, this, m_typedArrays[toIndex(TypeFloat64)].prototype.get()));
271     m_typedArrays[toIndex(TypeDataView)].structure.set(vm, this, JSDataView::createStructure(vm, this, m_typedArrays[toIndex(TypeDataView)].prototype.get()));
272
273     m_nameScopeStructure.set(vm, this, JSNameScope::createStructure(vm, this, jsNull()));
274     m_activationStructure.set(vm, this, JSActivation::createStructure(vm, this, jsNull()));
275     m_strictEvalActivationStructure.set(vm, this, StrictEvalActivation::createStructure(vm, this, jsNull()));
276     m_withScopeStructure.set(vm, this, JSWithScope::createStructure(vm, this, jsNull()));
277
278     m_nullPrototypeObjectStructure.set(vm, this, JSFinalObject::createStructure(vm, this, jsNull(), JSFinalObject::defaultInlineCapacity()));
279
280     m_callbackFunctionStructure.set(vm, this, JSCallbackFunction::createStructure(vm, this, m_functionPrototype.get()));
281     m_argumentsStructure.set(vm, this, Arguments::createStructure(vm, this, m_objectPrototype.get()));
282     m_callbackConstructorStructure.set(vm, this, JSCallbackConstructor::createStructure(vm, this, m_objectPrototype.get()));
283     m_callbackObjectStructure.set(vm, this, JSCallbackObject<JSDestructibleObject>::createStructure(vm, this, m_objectPrototype.get()));
284 #if JSC_OBJC_API_ENABLED
285     m_objcCallbackFunctionStructure.set(vm, this, ObjCCallbackFunction::createStructure(vm, this, m_functionPrototype.get()));
286     m_objcWrapperObjectStructure.set(vm, this, JSCallbackObject<JSAPIWrapperObject>::createStructure(vm, this, m_objectPrototype.get()));
287 #endif
288
289     m_arrayPrototype.set(vm, this, ArrayPrototype::create(vm, this, ArrayPrototype::createStructure(vm, this, m_objectPrototype.get())));
290     
291     m_originalArrayStructureForIndexingShape[UndecidedShape >> IndexingShapeShift].set(vm, this, JSArray::createStructure(vm, this, m_arrayPrototype.get(), ArrayWithUndecided));
292     m_originalArrayStructureForIndexingShape[Int32Shape >> IndexingShapeShift].set(vm, this, JSArray::createStructure(vm, this, m_arrayPrototype.get(), ArrayWithInt32));
293     m_originalArrayStructureForIndexingShape[DoubleShape >> IndexingShapeShift].set(vm, this, JSArray::createStructure(vm, this, m_arrayPrototype.get(), ArrayWithDouble));
294     m_originalArrayStructureForIndexingShape[ContiguousShape >> IndexingShapeShift].set(vm, this, JSArray::createStructure(vm, this, m_arrayPrototype.get(), ArrayWithContiguous));
295     m_originalArrayStructureForIndexingShape[ArrayStorageShape >> IndexingShapeShift].set(vm, this, JSArray::createStructure(vm, this, m_arrayPrototype.get(), ArrayWithArrayStorage));
296     m_originalArrayStructureForIndexingShape[SlowPutArrayStorageShape >> IndexingShapeShift].set(vm, this, JSArray::createStructure(vm, this, m_arrayPrototype.get(), ArrayWithSlowPutArrayStorage));
297     for (unsigned i = 0; i < NumberOfIndexingShapes; ++i)
298         m_arrayStructureForIndexingShapeDuringAllocation[i] = m_originalArrayStructureForIndexingShape[i];
299     
300     m_regExpMatchesArrayStructure.set(vm, this, RegExpMatchesArray::createStructure(vm, this, m_arrayPrototype.get()));
301
302     RegExp* emptyRegex = RegExp::create(vm, "", NoFlags);
303     
304     m_regExpPrototype.set(vm, this, RegExpPrototype::create(vm, RegExpPrototype::createStructure(vm, this, m_objectPrototype.get()), emptyRegex));
305     m_regExpStructure.set(vm, this, RegExpObject::createStructure(vm, this, m_regExpPrototype.get()));
306
307 #if ENABLE(PROMISES)
308     m_promisePrototype.set(vm, this, JSPromisePrototype::create(exec, this, JSPromisePrototype::createStructure(vm, this, m_objectPrototype.get())));
309     m_promiseStructure.set(vm, this, JSPromise::createStructure(vm, this, m_promisePrototype.get()));
310
311     m_promiseResolverPrototype.set(vm, this, JSPromiseResolverPrototype::create(exec, this, JSPromiseResolverPrototype::createStructure(vm, this, m_objectPrototype.get())));
312     m_promiseResolverStructure.set(vm, this, JSPromiseResolver::createStructure(vm, this, m_promiseResolverPrototype.get()));
313     m_promiseCallbackStructure.set(vm, this, JSPromiseCallback::createStructure(vm, this, m_functionPrototype.get()));
314     m_promiseWrapperCallbackStructure.set(vm, this, JSPromiseWrapperCallback::createStructure(vm, this, m_functionPrototype.get()));
315 #endif // ENABLE(PROMISES)
316
317 #define CREATE_PROTOTYPE_FOR_SIMPLE_TYPE(capitalName, lowerName, properName, instanceType, jsName) \
318     m_ ## lowerName ## Prototype.set(vm, this, capitalName##Prototype::create(vm, this, capitalName##Prototype::createStructure(vm, this, m_objectPrototype.get()))); \
319     m_ ## properName ## Structure.set(vm, this, instanceType::createStructure(vm, this, m_ ## lowerName ## Prototype.get()));
320
321     FOR_EACH_SIMPLE_BUILTIN_TYPE(CREATE_PROTOTYPE_FOR_SIMPLE_TYPE)
322
323 #undef CREATE_PROTOTYPE_FOR_SIMPLE_TYPE
324
325     // Constructors
326
327     JSCell* objectConstructor = ObjectConstructor::create(vm, ObjectConstructor::createStructure(vm, this, m_functionPrototype.get()), m_objectPrototype.get());
328     JSCell* functionConstructor = FunctionConstructor::create(vm, FunctionConstructor::createStructure(vm, this, m_functionPrototype.get()), m_functionPrototype.get());
329     JSCell* arrayConstructor = ArrayConstructor::create(vm, ArrayConstructor::createStructure(vm, this, m_functionPrototype.get()), m_arrayPrototype.get());
330
331 #if ENABLE(PROMISES)
332     JSCell* promiseConstructor = JSPromiseConstructor::create(vm, JSPromiseConstructor::createStructure(vm, this, m_functionPrototype.get()), m_promisePrototype.get());
333     JSCell* promiseResolverConstructor = JSPromiseResolverConstructor::create(vm, JSPromiseResolverConstructor::createStructure(vm, this, m_functionPrototype.get()), m_promiseResolverPrototype.get());
334 #endif // ENABLE(PROMISES)
335
336     m_regExpConstructor.set(vm, this, RegExpConstructor::create(vm, RegExpConstructor::createStructure(vm, this, m_functionPrototype.get()), m_regExpPrototype.get()));
337
338 #define CREATE_CONSTRUCTOR_FOR_SIMPLE_TYPE(capitalName, lowerName, properName, instanceType, jsName) \
339     capitalName ## Constructor* lowerName ## Constructor = capitalName ## Constructor::create(vm, capitalName ## Constructor::createStructure(vm, this, m_functionPrototype.get()), m_ ## lowerName ## Prototype.get()); \
340     m_ ## lowerName ## Prototype->putDirectWithoutTransition(vm, vm.propertyNames->constructor, lowerName ## Constructor, DontEnum); \
341
342     FOR_EACH_SIMPLE_BUILTIN_TYPE(CREATE_CONSTRUCTOR_FOR_SIMPLE_TYPE)
343
344 #undef CREATE_CONSTRUCTOR_FOR_SIMPLE_TYPE
345
346     m_errorConstructor.set(vm, this, errorConstructor);
347
348     Structure* nativeErrorPrototypeStructure = NativeErrorPrototype::createStructure(vm, this, m_errorPrototype.get());
349     Structure* nativeErrorStructure = NativeErrorConstructor::createStructure(vm, this, m_functionPrototype.get());
350     m_evalErrorConstructor.set(vm, this, NativeErrorConstructor::create(vm, this, nativeErrorStructure, nativeErrorPrototypeStructure, ASCIILiteral("EvalError")));
351     m_rangeErrorConstructor.set(vm, this, NativeErrorConstructor::create(vm, this, nativeErrorStructure, nativeErrorPrototypeStructure, ASCIILiteral("RangeError")));
352     m_referenceErrorConstructor.set(vm, this, NativeErrorConstructor::create(vm, this, nativeErrorStructure, nativeErrorPrototypeStructure, ASCIILiteral("ReferenceError")));
353     m_syntaxErrorConstructor.set(vm, this, NativeErrorConstructor::create(vm, this, nativeErrorStructure, nativeErrorPrototypeStructure, ASCIILiteral("SyntaxError")));
354     m_typeErrorConstructor.set(vm, this, NativeErrorConstructor::create(vm, this, nativeErrorStructure, nativeErrorPrototypeStructure, ASCIILiteral("TypeError")));
355     m_URIErrorConstructor.set(vm, this, NativeErrorConstructor::create(vm, this, nativeErrorStructure, nativeErrorPrototypeStructure, ASCIILiteral("URIError")));
356
357     m_objectPrototype->putDirectWithoutTransition(vm, vm.propertyNames->constructor, objectConstructor, DontEnum);
358     m_functionPrototype->putDirectWithoutTransition(vm, vm.propertyNames->constructor, functionConstructor, DontEnum);
359     m_arrayPrototype->putDirectWithoutTransition(vm, vm.propertyNames->constructor, arrayConstructor, DontEnum);
360     m_regExpPrototype->putDirectWithoutTransition(vm, vm.propertyNames->constructor, m_regExpConstructor.get(), DontEnum);
361 #if ENABLE(PROMISES)
362     m_promisePrototype->putDirectWithoutTransition(vm, vm.propertyNames->constructor, promiseConstructor, DontEnum);
363     m_promiseResolverPrototype->putDirectWithoutTransition(vm, vm.propertyNames->constructor, promiseResolverConstructor, DontEnum);
364 #endif
365
366     putDirectWithoutTransition(vm, vm.propertyNames->Object, objectConstructor, DontEnum);
367     putDirectWithoutTransition(vm, vm.propertyNames->Function, functionConstructor, DontEnum);
368     putDirectWithoutTransition(vm, vm.propertyNames->Array, arrayConstructor, DontEnum);
369     putDirectWithoutTransition(vm, vm.propertyNames->RegExp, m_regExpConstructor.get(), DontEnum);
370     putDirectWithoutTransition(vm, vm.propertyNames->EvalError, m_evalErrorConstructor.get(), DontEnum);
371     putDirectWithoutTransition(vm, vm.propertyNames->RangeError, m_rangeErrorConstructor.get(), DontEnum);
372     putDirectWithoutTransition(vm, vm.propertyNames->ReferenceError, m_referenceErrorConstructor.get(), DontEnum);
373     putDirectWithoutTransition(vm, vm.propertyNames->SyntaxError, m_syntaxErrorConstructor.get(), DontEnum);
374     putDirectWithoutTransition(vm, vm.propertyNames->TypeError, m_typeErrorConstructor.get(), DontEnum);
375     putDirectWithoutTransition(vm, vm.propertyNames->URIError, m_URIErrorConstructor.get(), DontEnum);
376 #if ENABLE(PROMISES)
377     putDirectWithoutTransition(vm, vm.propertyNames->Promise, promiseConstructor, DontEnum);
378     putDirectWithoutTransition(vm, vm.propertyNames->PromiseResolver, promiseResolverConstructor, DontEnum);
379 #endif
380
381
382 #define PUT_CONSTRUCTOR_FOR_SIMPLE_TYPE(capitalName, lowerName, properName, instanceType, jsName) \
383     putDirectWithoutTransition(vm, vm.propertyNames-> jsName, lowerName ## Constructor, DontEnum); \
384
385     FOR_EACH_SIMPLE_BUILTIN_TYPE(PUT_CONSTRUCTOR_FOR_SIMPLE_TYPE)
386
387 #undef PUT_CONSTRUCTOR_FOR_SIMPLE_TYPE
388     PrototypeMap& prototypeMap = vm.prototypeMap;
389     Structure* iteratorResultStructure = prototypeMap.emptyObjectStructureForPrototype(m_objectPrototype.get(), JSFinalObject::defaultInlineCapacity());
390     PropertyOffset offset;
391     iteratorResultStructure = Structure::addPropertyTransition(vm, iteratorResultStructure, vm.propertyNames->done, 0, 0, offset);
392     iteratorResultStructure = Structure::addPropertyTransition(vm, iteratorResultStructure, vm.propertyNames->value, 0, 0, offset);
393     m_iteratorResultStructure.set(vm, this, iteratorResultStructure);
394
395     m_evalFunction.set(vm, this, JSFunction::create(vm, this, 1, vm.propertyNames->eval.string(), globalFuncEval));
396     putDirectWithoutTransition(vm, vm.propertyNames->eval, m_evalFunction.get(), DontEnum);
397
398     putDirectWithoutTransition(vm, vm.propertyNames->JSON, JSONObject::create(exec, this, JSONObject::createStructure(vm, this, m_objectPrototype.get())), DontEnum);
399     putDirectWithoutTransition(vm, vm.propertyNames->Math, MathObject::create(vm, this, MathObject::createStructure(vm, this, m_objectPrototype.get())), DontEnum);
400     
401     FixedArray<InternalFunction*, NUMBER_OF_TYPED_ARRAY_TYPES> typedArrayConstructors;
402     typedArrayConstructors[toIndex(TypeInt8)] = JSInt8ArrayConstructor::create(vm, JSInt8ArrayConstructor::createStructure(vm, this, m_functionPrototype.get()), m_typedArrays[toIndex(TypeInt8)].prototype.get(), "Int8Array");
403     typedArrayConstructors[toIndex(TypeInt16)] = JSInt16ArrayConstructor::create(vm, JSInt16ArrayConstructor::createStructure(vm, this, m_functionPrototype.get()), m_typedArrays[toIndex(TypeInt16)].prototype.get(), "Int16Array");
404     typedArrayConstructors[toIndex(TypeInt32)] = JSInt32ArrayConstructor::create(vm, JSInt32ArrayConstructor::createStructure(vm, this, m_functionPrototype.get()), m_typedArrays[toIndex(TypeInt32)].prototype.get(), "Int32Array");
405     typedArrayConstructors[toIndex(TypeUint8)] = JSUint8ArrayConstructor::create(vm, JSUint8ArrayConstructor::createStructure(vm, this, m_functionPrototype.get()), m_typedArrays[toIndex(TypeUint8)].prototype.get(), "Uint8Array");
406     typedArrayConstructors[toIndex(TypeUint8Clamped)] = JSUint8ClampedArrayConstructor::create(vm, JSUint8ClampedArrayConstructor::createStructure(vm, this, m_functionPrototype.get()), m_typedArrays[toIndex(TypeUint8Clamped)].prototype.get(), "Uint8ClampedArray");
407     typedArrayConstructors[toIndex(TypeUint16)] = JSUint16ArrayConstructor::create(vm, JSUint16ArrayConstructor::createStructure(vm, this, m_functionPrototype.get()), m_typedArrays[toIndex(TypeUint16)].prototype.get(), "Uint16Array");
408     typedArrayConstructors[toIndex(TypeUint32)] = JSUint32ArrayConstructor::create(vm, JSUint32ArrayConstructor::createStructure(vm, this, m_functionPrototype.get()), m_typedArrays[toIndex(TypeUint32)].prototype.get(), "Uint32Array");
409     typedArrayConstructors[toIndex(TypeFloat32)] = JSFloat32ArrayConstructor::create(vm, JSFloat32ArrayConstructor::createStructure(vm, this, m_functionPrototype.get()), m_typedArrays[toIndex(TypeFloat32)].prototype.get(), "Float32Array");
410     typedArrayConstructors[toIndex(TypeFloat64)] = JSFloat64ArrayConstructor::create(vm, JSFloat64ArrayConstructor::createStructure(vm, this, m_functionPrototype.get()), m_typedArrays[toIndex(TypeFloat64)].prototype.get(), "Float64Array");
411     typedArrayConstructors[toIndex(TypeDataView)] = JSDataViewConstructor::create(vm, JSDataViewConstructor::createStructure(vm, this, m_functionPrototype.get()), m_typedArrays[toIndex(TypeDataView)].prototype.get(), "DataView");
412
413     for (unsigned typedArrayIndex = NUMBER_OF_TYPED_ARRAY_TYPES; typedArrayIndex--;) {
414         m_typedArrays[typedArrayIndex].prototype->putDirectWithoutTransition(vm, vm.propertyNames->constructor, typedArrayConstructors[typedArrayIndex], DontEnum);
415         putDirectWithoutTransition(vm, Identifier(exec, typedArrayConstructors[typedArrayIndex]->name(exec)), typedArrayConstructors[typedArrayIndex], DontEnum);
416     }
417
418     GlobalPropertyInfo staticGlobals[] = {
419         GlobalPropertyInfo(vm.propertyNames->NaN, jsNaN(), DontEnum | DontDelete | ReadOnly),
420         GlobalPropertyInfo(vm.propertyNames->Infinity, jsNumber(std::numeric_limits<double>::infinity()), DontEnum | DontDelete | ReadOnly),
421         GlobalPropertyInfo(vm.propertyNames->undefinedKeyword, jsUndefined(), DontEnum | DontDelete | ReadOnly)
422     };
423     addStaticGlobals(staticGlobals, WTF_ARRAY_LENGTH(staticGlobals));
424     
425     m_specialPointers[Special::CallFunction] = m_callFunction.get();
426     m_specialPointers[Special::ApplyFunction] = m_applyFunction.get();
427     m_specialPointers[Special::ObjectConstructor] = objectConstructor;
428     m_specialPointers[Special::ArrayConstructor] = arrayConstructor;
429
430     if (m_experimentsEnabled) {
431         NamePrototype* privateNamePrototype = NamePrototype::create(exec, NamePrototype::createStructure(vm, this, m_objectPrototype.get()));
432         m_privateNameStructure.set(vm, this, NameInstance::createStructure(vm, this, privateNamePrototype));
433
434         JSCell* privateNameConstructor = NameConstructor::create(vm, NameConstructor::createStructure(vm, this, m_functionPrototype.get()), privateNamePrototype);
435         privateNamePrototype->putDirectWithoutTransition(vm, vm.propertyNames->constructor, privateNameConstructor, DontEnum);
436         putDirectWithoutTransition(vm, Identifier(exec, "Name"), privateNameConstructor, DontEnum);
437     }
438
439     resetPrototype(vm, prototype);
440 }
441
442 // Private namespace for helpers for JSGlobalObject::haveABadTime()
443 namespace {
444
445 class ObjectsWithBrokenIndexingFinder : public MarkedBlock::VoidFunctor {
446 public:
447     ObjectsWithBrokenIndexingFinder(MarkedArgumentBuffer&, JSGlobalObject*);
448     void operator()(JSCell*);
449
450 private:
451     MarkedArgumentBuffer& m_foundObjects;
452     JSGlobalObject* m_globalObject;
453 };
454
455 ObjectsWithBrokenIndexingFinder::ObjectsWithBrokenIndexingFinder(
456     MarkedArgumentBuffer& foundObjects, JSGlobalObject* globalObject)
457     : m_foundObjects(foundObjects)
458     , m_globalObject(globalObject)
459 {
460 }
461
462 inline bool hasBrokenIndexing(JSObject* object)
463 {
464     // This will change if we have more indexing types.
465     IndexingType type = object->structure()->indexingType();
466     // This could be made obviously more efficient, but isn't made so right now, because
467     // we expect this to be an unlikely slow path anyway.
468     return hasUndecided(type) || hasInt32(type) || hasDouble(type) || hasContiguous(type) || hasFastArrayStorage(type);
469 }
470
471 void ObjectsWithBrokenIndexingFinder::operator()(JSCell* cell)
472 {
473     if (!cell->isObject())
474         return;
475     
476     JSObject* object = asObject(cell);
477
478     // Run this filter first, since it's cheap, and ought to filter out a lot of objects.
479     if (!hasBrokenIndexing(object))
480         return;
481     
482     // We only want to have a bad time in the affected global object, not in the entire
483     // VM. But we have to be careful, since there may be objects that claim to belong to
484     // a different global object that have prototypes from our global object.
485     bool foundGlobalObject = false;
486     for (JSObject* current = object; ;) {
487         if (current->globalObject() == m_globalObject) {
488             foundGlobalObject = true;
489             break;
490         }
491         
492         JSValue prototypeValue = current->prototype();
493         if (prototypeValue.isNull())
494             break;
495         current = asObject(prototypeValue);
496     }
497     if (!foundGlobalObject)
498         return;
499     
500     m_foundObjects.append(object);
501 }
502
503 } // end private namespace for helpers for JSGlobalObject::haveABadTime()
504
505 void JSGlobalObject::haveABadTime(VM& vm)
506 {
507     ASSERT(&vm == &this->vm());
508     
509     if (isHavingABadTime())
510         return;
511     
512     // Make sure that all allocations or indexed storage transitions that are inlining
513     // the assumption that it's safe to transition to a non-SlowPut array storage don't
514     // do so anymore.
515     m_havingABadTimeWatchpoint->notifyWrite();
516     ASSERT(isHavingABadTime()); // The watchpoint is what tells us that we're having a bad time.
517     
518     // Make sure that all JSArray allocations that load the appropriate structure from
519     // this object now load a structure that uses SlowPut.
520     for (unsigned i = 0; i < NumberOfIndexingShapes; ++i)
521         m_arrayStructureForIndexingShapeDuringAllocation[i].set(vm, this, originalArrayStructureForIndexingType(ArrayWithSlowPutArrayStorage));
522     
523     // Make sure that all objects that have indexed storage switch to the slow kind of
524     // indexed storage.
525     MarkedArgumentBuffer foundObjects; // Use MarkedArgumentBuffer because switchToSlowPutArrayStorage() may GC.
526     ObjectsWithBrokenIndexingFinder finder(foundObjects, this);
527     {
528         HeapIterationScope iterationScope(vm.heap);
529         vm.heap.objectSpace().forEachLiveCell(iterationScope, finder);
530     }
531     while (!foundObjects.isEmpty()) {
532         JSObject* object = asObject(foundObjects.last());
533         foundObjects.removeLast();
534         ASSERT(hasBrokenIndexing(object));
535         object->switchToSlowPutArrayStorage(vm);
536     }
537 }
538
539 bool JSGlobalObject::objectPrototypeIsSane()
540 {
541     return !hasIndexedProperties(m_objectPrototype->structure()->indexingType())
542         && m_objectPrototype->prototype().isNull();
543 }
544
545 bool JSGlobalObject::arrayPrototypeChainIsSane()
546 {
547     return !hasIndexedProperties(m_arrayPrototype->structure()->indexingType())
548         && m_arrayPrototype->prototype() == m_objectPrototype.get()
549         && objectPrototypeIsSane();
550 }
551
552 bool JSGlobalObject::stringPrototypeChainIsSane()
553 {
554     return !hasIndexedProperties(m_stringPrototype->structure()->indexingType())
555         && m_stringPrototype->prototype() == m_objectPrototype.get()
556         && objectPrototypeIsSane();
557 }
558
559 void JSGlobalObject::createThrowTypeError(VM& vm)
560 {
561     JSFunction* thrower = JSFunction::create(vm, this, 0, String(), globalFuncThrowTypeError);
562     GetterSetter* getterSetter = GetterSetter::create(vm);
563     getterSetter->setGetter(vm, thrower);
564     getterSetter->setSetter(vm, thrower);
565     m_throwTypeErrorGetterSetter.set(vm, this, getterSetter);
566 }
567
568 // Set prototype, and also insert the object prototype at the end of the chain.
569 void JSGlobalObject::resetPrototype(VM& vm, JSValue prototype)
570 {
571     setPrototype(vm, prototype);
572
573     JSObject* oldLastInPrototypeChain = lastInPrototypeChain(this);
574     JSObject* objectPrototype = m_objectPrototype.get();
575     if (oldLastInPrototypeChain != objectPrototype)
576         oldLastInPrototypeChain->setPrototype(vm, objectPrototype);
577 }
578
579 void JSGlobalObject::visitChildren(JSCell* cell, SlotVisitor& visitor)
580
581     JSGlobalObject* thisObject = jsCast<JSGlobalObject*>(cell);
582     ASSERT_GC_OBJECT_INHERITS(thisObject, info());
583     COMPILE_ASSERT(StructureFlags & OverridesVisitChildren, OverridesVisitChildrenWithoutSettingFlag);
584     ASSERT(thisObject->structure()->typeInfo().overridesVisitChildren());
585     Base::visitChildren(thisObject, visitor);
586
587     visitor.append(&thisObject->m_globalThis);
588
589     visitor.append(&thisObject->m_regExpConstructor);
590     visitor.append(&thisObject->m_errorConstructor);
591     visitor.append(&thisObject->m_evalErrorConstructor);
592     visitor.append(&thisObject->m_rangeErrorConstructor);
593     visitor.append(&thisObject->m_referenceErrorConstructor);
594     visitor.append(&thisObject->m_syntaxErrorConstructor);
595     visitor.append(&thisObject->m_typeErrorConstructor);
596     visitor.append(&thisObject->m_URIErrorConstructor);
597
598     visitor.append(&thisObject->m_evalFunction);
599     visitor.append(&thisObject->m_callFunction);
600     visitor.append(&thisObject->m_applyFunction);
601     visitor.append(&thisObject->m_throwTypeErrorGetterSetter);
602
603     visitor.append(&thisObject->m_objectPrototype);
604     visitor.append(&thisObject->m_functionPrototype);
605     visitor.append(&thisObject->m_arrayPrototype);
606     visitor.append(&thisObject->m_errorPrototype);
607 #if ENABLE(PROMISES)
608     visitor.append(&thisObject->m_promisePrototype);
609     visitor.append(&thisObject->m_promiseResolverPrototype);
610 #endif
611
612     visitor.append(&thisObject->m_withScopeStructure);
613     visitor.append(&thisObject->m_strictEvalActivationStructure);
614     visitor.append(&thisObject->m_activationStructure);
615     visitor.append(&thisObject->m_nameScopeStructure);
616     visitor.append(&thisObject->m_argumentsStructure);
617     for (unsigned i = 0; i < NumberOfIndexingShapes; ++i)
618         visitor.append(&thisObject->m_originalArrayStructureForIndexingShape[i]);
619     for (unsigned i = 0; i < NumberOfIndexingShapes; ++i)
620         visitor.append(&thisObject->m_arrayStructureForIndexingShapeDuringAllocation[i]);
621     visitor.append(&thisObject->m_booleanObjectStructure);
622     visitor.append(&thisObject->m_callbackConstructorStructure);
623     visitor.append(&thisObject->m_callbackFunctionStructure);
624     visitor.append(&thisObject->m_callbackObjectStructure);
625 #if JSC_OBJC_API_ENABLED
626     visitor.append(&thisObject->m_objcCallbackFunctionStructure);
627     visitor.append(&thisObject->m_objcWrapperObjectStructure);
628 #endif
629     visitor.append(&thisObject->m_nullPrototypeObjectStructure);
630     visitor.append(&thisObject->m_errorStructure);
631     visitor.append(&thisObject->m_functionStructure);
632     visitor.append(&thisObject->m_boundFunctionStructure);
633     visitor.append(&thisObject->m_namedFunctionStructure);
634     visitor.append(&thisObject->m_privateNameStructure);
635     visitor.append(&thisObject->m_regExpMatchesArrayStructure);
636     visitor.append(&thisObject->m_regExpStructure);
637     visitor.append(&thisObject->m_internalFunctionStructure);
638
639 #if ENABLE(PROMISES)
640     visitor.append(&thisObject->m_promiseStructure);
641     visitor.append(&thisObject->m_promiseResolverStructure);
642     visitor.append(&thisObject->m_promiseCallbackStructure);
643     visitor.append(&thisObject->m_promiseWrapperCallbackStructure);
644 #endif // ENABLE(PROMISES)
645
646 #define VISIT_SIMPLE_TYPE(CapitalName, lowerName, properName, instanceType, jsName) \
647     visitor.append(&thisObject->m_ ## lowerName ## Prototype); \
648     visitor.append(&thisObject->m_ ## properName ## Structure); \
649
650     FOR_EACH_SIMPLE_BUILTIN_TYPE(VISIT_SIMPLE_TYPE)
651
652 #undef VISIT_SIMPLE_TYPE
653
654     for (unsigned i = NUMBER_OF_TYPED_ARRAY_TYPES; i--;) {
655         visitor.append(&thisObject->m_typedArrays[i].prototype);
656         visitor.append(&thisObject->m_typedArrays[i].structure);
657     }
658 }
659
660 JSValue JSGlobalObject::toThis(JSCell*, ExecState* exec, ECMAMode ecmaMode)
661 {
662     if (ecmaMode == StrictMode)
663         return jsUndefined();
664     return exec->globalThisValue();
665 }
666
667 ExecState* JSGlobalObject::globalExec()
668 {
669     return CallFrame::create(m_globalCallFrame);
670 }
671
672 void JSGlobalObject::addStaticGlobals(GlobalPropertyInfo* globals, int count)
673 {
674     addRegisters(count);
675
676     for (int i = 0; i < count; ++i) {
677         GlobalPropertyInfo& global = globals[i];
678         ASSERT(global.attributes & DontDelete);
679         
680         int index = symbolTable()->size();
681         SymbolTableEntry newEntry(index, global.attributes);
682         symbolTable()->add(global.identifier.impl(), newEntry);
683         registerAt(index).set(vm(), this, global.value);
684     }
685 }
686
687 bool JSGlobalObject::getOwnPropertySlot(JSObject* object, ExecState* exec, PropertyName propertyName, PropertySlot& slot)
688 {
689     JSGlobalObject* thisObject = jsCast<JSGlobalObject*>(object);
690     if (getStaticFunctionSlot<Base>(exec, ExecState::globalObjectTable(exec), thisObject, propertyName, slot))
691         return true;
692     return symbolTableGet(thisObject, propertyName, slot);
693 }
694
695 void JSGlobalObject::clearRareData(JSCell* cell)
696 {
697     jsCast<JSGlobalObject*>(cell)->m_rareData.clear();
698 }
699
700 DynamicGlobalObjectScope::DynamicGlobalObjectScope(VM& vm, JSGlobalObject* dynamicGlobalObject)
701     : m_dynamicGlobalObjectSlot(vm.dynamicGlobalObject)
702     , m_savedDynamicGlobalObject(m_dynamicGlobalObjectSlot)
703 {
704     if (!m_dynamicGlobalObjectSlot) {
705 #if ENABLE(ASSEMBLER)
706         if (ExecutableAllocator::underMemoryPressure())
707             vm.heap.deleteAllCompiledCode();
708 #endif
709
710         m_dynamicGlobalObjectSlot = dynamicGlobalObject;
711
712         // Reset the date cache between JS invocations to force the VM
713         // to observe time zone changes.
714         vm.resetDateCache();
715     }
716     // Clear the exception stack between entries
717     vm.clearExceptionStack();
718 }
719
720 void slowValidateCell(JSGlobalObject* globalObject)
721 {
722     RELEASE_ASSERT(globalObject->isGlobalObject());
723     ASSERT_GC_OBJECT_INHERITS(globalObject, JSGlobalObject::info());
724 }
725
726 UnlinkedProgramCodeBlock* JSGlobalObject::createProgramCodeBlock(CallFrame* callFrame, ProgramExecutable* executable, JSObject** exception)
727 {
728     ParserError error;
729     JSParserStrictness strictness = executable->isStrictMode() ? JSParseStrict : JSParseNormal;
730     DebuggerMode debuggerMode = hasDebugger() ? DebuggerOn : DebuggerOff;
731     ProfilerMode profilerMode = hasProfiler() ? ProfilerOn : ProfilerOff;
732     UnlinkedProgramCodeBlock* unlinkedCode = vm().codeCache()->getProgramCodeBlock(vm(), executable, executable->source(), strictness, debuggerMode, profilerMode, error);
733
734     if (hasDebugger())
735         debugger()->sourceParsed(callFrame, executable->source().provider(), error.m_line, error.m_message);
736
737     if (error.m_type != ParserError::ErrorNone) {
738         *exception = error.toErrorObject(this, executable->source());
739         return 0;
740     }
741     
742     return unlinkedCode;
743 }
744
745 UnlinkedEvalCodeBlock* JSGlobalObject::createEvalCodeBlock(CallFrame* callFrame, EvalExecutable* executable)
746 {
747     ParserError error;
748     JSParserStrictness strictness = executable->isStrictMode() ? JSParseStrict : JSParseNormal;
749     DebuggerMode debuggerMode = hasDebugger() ? DebuggerOn : DebuggerOff;
750     ProfilerMode profilerMode = hasProfiler() ? ProfilerOn : ProfilerOff;
751     UnlinkedEvalCodeBlock* unlinkedCode = vm().codeCache()->getEvalCodeBlock(vm(), executable, executable->source(), strictness, debuggerMode, profilerMode, error);
752
753     if (hasDebugger())
754         debugger()->sourceParsed(callFrame, executable->source().provider(), error.m_line, error.m_message);
755
756     if (error.m_type != ParserError::ErrorNone) {
757         throwVMError(callFrame, error.toErrorObject(this, executable->source()));
758         return 0;
759     }
760
761     return unlinkedCode;
762 }
763
764 } // namespace JSC