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