1/* 2 * Copyright (C) 2007, 2008, 2009, 2014 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 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 "ArgumentsIteratorConstructor.h" 35#include "ArgumentsIteratorPrototype.h" 36#include "ArrayConstructor.h" 37#include "ArrayIteratorConstructor.h" 38#include "ArrayIteratorPrototype.h" 39#include "ArrayPrototype.h" 40#include "BooleanConstructor.h" 41#include "BooleanPrototype.h" 42#include "CodeBlock.h" 43#include "CodeCache.h" 44#include "ConsolePrototype.h" 45#include "DateConstructor.h" 46#include "DatePrototype.h" 47#include "Debugger.h" 48#include "Error.h" 49#include "ErrorConstructor.h" 50#include "ErrorPrototype.h" 51#include "FunctionConstructor.h" 52#include "FunctionPrototype.h" 53#include "GetterSetter.h" 54#include "HeapIterationScope.h" 55#include "Interpreter.h" 56#include "JSAPIWrapperObject.h" 57#include "JSActivation.h" 58#include "JSArgumentsIterator.h" 59#include "JSArrayBuffer.h" 60#include "JSArrayBufferConstructor.h" 61#include "JSArrayBufferPrototype.h" 62#include "JSArrayIterator.h" 63#include "JSBoundFunction.h" 64#include "JSCInlines.h" 65#include "JSCallbackConstructor.h" 66#include "JSCallbackFunction.h" 67#include "JSCallbackObject.h" 68#include "JSConsole.h" 69#include "JSDataView.h" 70#include "JSDataViewPrototype.h" 71#include "JSFunction.h" 72#include "JSGenericTypedArrayViewConstructorInlines.h" 73#include "JSGenericTypedArrayViewInlines.h" 74#include "JSGenericTypedArrayViewPrototypeInlines.h" 75#include "JSGlobalObjectFunctions.h" 76#include "JSLock.h" 77#include "JSMap.h" 78#include "JSMapIterator.h" 79#include "JSNameScope.h" 80#include "JSONObject.h" 81#include "JSSet.h" 82#include "JSSetIterator.h" 83#include "JSTypedArrayConstructors.h" 84#include "JSTypedArrayPrototypes.h" 85#include "JSTypedArrays.h" 86#include "JSWeakMap.h" 87#include "JSWithScope.h" 88#include "LegacyProfiler.h" 89#include "Lookup.h" 90#include "MapConstructor.h" 91#include "MapIteratorConstructor.h" 92#include "MapIteratorPrototype.h" 93#include "MapPrototype.h" 94#include "MathObject.h" 95#include "Microtask.h" 96#include "NameConstructor.h" 97#include "NameInstance.h" 98#include "NamePrototype.h" 99#include "NativeErrorConstructor.h" 100#include "NativeErrorPrototype.h" 101#include "NumberConstructor.h" 102#include "NumberPrototype.h" 103#include "ObjCCallbackFunction.h" 104#include "ObjectConstructor.h" 105#include "ObjectPrototype.h" 106#include "ParserError.h" 107#include "RegExpConstructor.h" 108#include "RegExpMatchesArray.h" 109#include "RegExpObject.h" 110#include "RegExpPrototype.h" 111#include "SetConstructor.h" 112#include "SetIteratorConstructor.h" 113#include "SetIteratorPrototype.h" 114#include "SetPrototype.h" 115#include "StrictEvalActivation.h" 116#include "StringConstructor.h" 117#include "StringPrototype.h" 118#include "VariableWatchpointSetInlines.h" 119#include "WeakMapConstructor.h" 120#include "WeakMapPrototype.h" 121 122#if ENABLE(PROMISES) 123#include "JSPromise.h" 124#include "JSPromiseConstructor.h" 125#include "JSPromisePrototype.h" 126#endif // ENABLE(PROMISES) 127 128#if ENABLE(REMOTE_INSPECTOR) 129#include "JSGlobalObjectDebuggable.h" 130#include "JSGlobalObjectInspectorController.h" 131#endif 132 133#if ENABLE(WEB_REPLAY) 134#include "EmptyInputCursor.h" 135#include "JSReplayInputs.h" 136#endif 137 138#include "JSGlobalObject.lut.h" 139 140namespace JSC { 141 142const ClassInfo JSGlobalObject::s_info = { "GlobalObject", &Base::s_info, 0, ExecState::globalObjectTable, CREATE_METHOD_TABLE(JSGlobalObject) }; 143 144const GlobalObjectMethodTable JSGlobalObject::s_globalObjectMethodTable = { &allowsAccessFrom, &supportsProfiling, &supportsRichSourceInfo, &shouldInterruptScript, &javaScriptExperimentsEnabled, 0, &shouldInterruptScriptBeforeTimeout }; 145 146/* Source for JSGlobalObject.lut.h 147@begin globalObjectTable 148 parseInt globalFuncParseInt DontEnum|Function 2 149 parseFloat globalFuncParseFloat DontEnum|Function 1 150 isNaN globalFuncIsNaN DontEnum|Function 1 151 isFinite globalFuncIsFinite DontEnum|Function 1 152 escape globalFuncEscape DontEnum|Function 1 153 unescape globalFuncUnescape DontEnum|Function 1 154 decodeURI globalFuncDecodeURI DontEnum|Function 1 155 decodeURIComponent globalFuncDecodeURIComponent DontEnum|Function 1 156 encodeURI globalFuncEncodeURI DontEnum|Function 1 157 encodeURIComponent globalFuncEncodeURIComponent DontEnum|Function 1 158@end 159*/ 160 161JSGlobalObject::JSGlobalObject(VM& vm, Structure* structure, const GlobalObjectMethodTable* globalObjectMethodTable) 162 : Base(vm, structure, 0) 163 , m_vm(vm) 164#if ENABLE(WEB_REPLAY) 165 , m_inputCursor(EmptyInputCursor::create()) 166#endif 167 , m_masqueradesAsUndefinedWatchpoint(adoptRef(new WatchpointSet(IsWatched))) 168 , m_havingABadTimeWatchpoint(adoptRef(new WatchpointSet(IsWatched))) 169 , m_varInjectionWatchpoint(adoptRef(new WatchpointSet(IsWatched))) 170 , m_weakRandom(Options::forceWeakRandomSeed() ? Options::forcedWeakRandomSeed() : static_cast<unsigned>(randomNumber() * (std::numeric_limits<unsigned>::max() + 1.0))) 171 , m_evalEnabled(true) 172 , m_experimentsEnabled(false) 173 , m_consoleClient(nullptr) 174 , m_globalObjectMethodTable(globalObjectMethodTable ? globalObjectMethodTable : &s_globalObjectMethodTable) 175{ 176} 177 178JSGlobalObject::~JSGlobalObject() 179{ 180#if ENABLE(REMOTE_INSPECTOR) 181 m_inspectorController->globalObjectDestroyed(); 182#endif 183 184 if (m_debugger) 185 m_debugger->detach(this, Debugger::GlobalObjectIsDestructing); 186 187 if (LegacyProfiler* profiler = vm().enabledProfiler()) 188 profiler->stopProfiling(this); 189} 190 191void JSGlobalObject::destroy(JSCell* cell) 192{ 193 static_cast<JSGlobalObject*>(cell)->JSGlobalObject::~JSGlobalObject(); 194} 195 196void JSGlobalObject::setGlobalThis(VM& vm, JSObject* globalThis) 197{ 198 m_globalThis.set(vm, this, globalThis); 199} 200 201void JSGlobalObject::init() 202{ 203 ASSERT(vm().currentThreadIsHoldingAPILock()); 204 205 JSGlobalObject::globalExec()->init(0, 0, this, CallFrame::noCaller(), 0, 0); 206 207 m_debugger = 0; 208 209#if ENABLE(REMOTE_INSPECTOR) 210 m_inspectorController = std::make_unique<Inspector::JSGlobalObjectInspectorController>(*this); 211 m_inspectorDebuggable = std::make_unique<JSGlobalObjectDebuggable>(*this); 212 m_inspectorDebuggable->init(); 213 m_inspectorDebuggable->setRemoteDebuggingAllowed(true); 214 m_consoleClient = m_inspectorController->consoleClient(); 215#endif 216 217 reset(prototype()); 218} 219 220void JSGlobalObject::put(JSCell* cell, ExecState* exec, PropertyName propertyName, JSValue value, PutPropertySlot& slot) 221{ 222 JSGlobalObject* thisObject = jsCast<JSGlobalObject*>(cell); 223 ASSERT(!Heap::heap(value) || Heap::heap(value) == Heap::heap(thisObject)); 224 225 if (symbolTablePut(thisObject, exec, propertyName, value, slot.isStrictMode())) 226 return; 227 Base::put(thisObject, exec, propertyName, value, slot); 228} 229 230bool JSGlobalObject::defineOwnProperty(JSObject* object, ExecState* exec, PropertyName propertyName, const PropertyDescriptor& descriptor, bool shouldThrow) 231{ 232 JSGlobalObject* thisObject = jsCast<JSGlobalObject*>(object); 233 PropertySlot slot(thisObject); 234 // silently ignore attempts to add accessors aliasing vars. 235 if (descriptor.isAccessorDescriptor() && symbolTableGet(thisObject, propertyName, slot)) 236 return false; 237 return Base::defineOwnProperty(thisObject, exec, propertyName, descriptor, shouldThrow); 238} 239 240JSGlobalObject::NewGlobalVar JSGlobalObject::addGlobalVar(const Identifier& ident, ConstantMode constantMode) 241{ 242 ConcurrentJITLocker locker(symbolTable()->m_lock); 243 int index = symbolTable()->size(locker); 244 SymbolTableEntry newEntry(index, (constantMode == IsConstant) ? ReadOnly : 0); 245 if (constantMode == IsVariable) 246 newEntry.prepareToWatch(symbolTable()); 247 SymbolTable::Map::AddResult result = symbolTable()->add(locker, ident.impl(), newEntry); 248 if (result.isNewEntry) 249 addRegisters(1); 250 else 251 index = result.iterator->value.getIndex(); 252 NewGlobalVar var; 253 var.registerNumber = index; 254 var.set = result.iterator->value.watchpointSet(); 255 return var; 256} 257 258void JSGlobalObject::addFunction(ExecState* exec, const Identifier& propertyName, JSValue value) 259{ 260 VM& vm = exec->vm(); 261 removeDirect(vm, propertyName); // Newly declared functions overwrite existing properties. 262 NewGlobalVar var = addGlobalVar(propertyName, IsVariable); 263 registerAt(var.registerNumber).set(exec->vm(), this, value); 264 if (var.set) 265 var.set->notifyWrite(vm, value); 266} 267 268static inline JSObject* lastInPrototypeChain(JSObject* object) 269{ 270 JSObject* o = object; 271 while (o->prototype().isObject()) 272 o = asObject(o->prototype()); 273 return o; 274} 275 276void JSGlobalObject::reset(JSValue prototype) 277{ 278 ExecState* exec = JSGlobalObject::globalExec(); 279 VM& vm = exec->vm(); 280 281 m_functionPrototype.set(vm, this, FunctionPrototype::create(vm, FunctionPrototype::createStructure(vm, this, jsNull()))); // The real prototype will be set once ObjectPrototype is created. 282 m_functionStructure.set(vm, this, JSFunction::createStructure(vm, this, m_functionPrototype.get())); 283 m_boundFunctionStructure.set(vm, this, JSBoundFunction::createStructure(vm, this, m_functionPrototype.get())); 284 m_namedFunctionStructure.set(vm, this, Structure::addPropertyTransition(vm, m_functionStructure.get(), vm.propertyNames->name, DontDelete | ReadOnly | DontEnum, 0, m_functionNameOffset)); 285 m_internalFunctionStructure.set(vm, this, InternalFunction::createStructure(vm, this, m_functionPrototype.get())); 286 JSFunction* callFunction = 0; 287 JSFunction* applyFunction = 0; 288 m_functionPrototype->addFunctionProperties(exec, this, &callFunction, &applyFunction); 289 m_callFunction.set(vm, this, callFunction); 290 m_applyFunction.set(vm, this, applyFunction); 291 m_objectPrototype.set(vm, this, ObjectPrototype::create(vm, this, ObjectPrototype::createStructure(vm, this, jsNull()))); 292 GetterSetter* protoAccessor = GetterSetter::create(vm); 293 protoAccessor->setGetter(vm, JSFunction::create(vm, this, 0, String(), globalFuncProtoGetter)); 294 protoAccessor->setSetter(vm, JSFunction::create(vm, this, 0, String(), globalFuncProtoSetter)); 295 m_objectPrototype->putDirectNonIndexAccessor(vm, vm.propertyNames->underscoreProto, protoAccessor, Accessor | DontEnum); 296 m_functionPrototype->structure()->setPrototypeWithoutTransition(vm, m_objectPrototype.get()); 297 298 m_typedArrays[toIndex(TypeInt8)].prototype.set(vm, this, JSInt8ArrayPrototype::create(vm, this, JSInt8ArrayPrototype::createStructure(vm, this, m_objectPrototype.get()))); 299 m_typedArrays[toIndex(TypeInt16)].prototype.set(vm, this, JSInt16ArrayPrototype::create(vm, this, JSInt16ArrayPrototype::createStructure(vm, this, m_objectPrototype.get()))); 300 m_typedArrays[toIndex(TypeInt32)].prototype.set(vm, this, JSInt32ArrayPrototype::create(vm, this, JSInt32ArrayPrototype::createStructure(vm, this, m_objectPrototype.get()))); 301 m_typedArrays[toIndex(TypeUint8)].prototype.set(vm, this, JSUint8ArrayPrototype::create(vm, this, JSUint8ArrayPrototype::createStructure(vm, this, m_objectPrototype.get()))); 302 m_typedArrays[toIndex(TypeUint8Clamped)].prototype.set(vm, this, JSUint8ClampedArrayPrototype::create(vm, this, JSUint8ClampedArrayPrototype::createStructure(vm, this, m_objectPrototype.get()))); 303 m_typedArrays[toIndex(TypeUint16)].prototype.set(vm, this, JSUint16ArrayPrototype::create(vm, this, JSUint16ArrayPrototype::createStructure(vm, this, m_objectPrototype.get()))); 304 m_typedArrays[toIndex(TypeUint32)].prototype.set(vm, this, JSUint32ArrayPrototype::create(vm, this, JSUint32ArrayPrototype::createStructure(vm, this, m_objectPrototype.get()))); 305 m_typedArrays[toIndex(TypeFloat32)].prototype.set(vm, this, JSFloat32ArrayPrototype::create(vm, this, JSFloat32ArrayPrototype::createStructure(vm, this, m_objectPrototype.get()))); 306 m_typedArrays[toIndex(TypeFloat64)].prototype.set(vm, this, JSFloat64ArrayPrototype::create(vm, this, JSFloat64ArrayPrototype::createStructure(vm, this, m_objectPrototype.get()))); 307 m_typedArrays[toIndex(TypeDataView)].prototype.set(vm, this, JSDataViewPrototype::create(vm, JSDataViewPrototype::createStructure(vm, this, m_objectPrototype.get()))); 308 309 m_typedArrays[toIndex(TypeInt8)].structure.set(vm, this, JSInt8Array::createStructure(vm, this, m_typedArrays[toIndex(TypeInt8)].prototype.get())); 310 m_typedArrays[toIndex(TypeInt16)].structure.set(vm, this, JSInt16Array::createStructure(vm, this, m_typedArrays[toIndex(TypeInt16)].prototype.get())); 311 m_typedArrays[toIndex(TypeInt32)].structure.set(vm, this, JSInt32Array::createStructure(vm, this, m_typedArrays[toIndex(TypeInt32)].prototype.get())); 312 m_typedArrays[toIndex(TypeUint8)].structure.set(vm, this, JSUint8Array::createStructure(vm, this, m_typedArrays[toIndex(TypeUint8)].prototype.get())); 313 m_typedArrays[toIndex(TypeUint8Clamped)].structure.set(vm, this, JSUint8ClampedArray::createStructure(vm, this, m_typedArrays[toIndex(TypeUint8Clamped)].prototype.get())); 314 m_typedArrays[toIndex(TypeUint16)].structure.set(vm, this, JSUint16Array::createStructure(vm, this, m_typedArrays[toIndex(TypeUint16)].prototype.get())); 315 m_typedArrays[toIndex(TypeUint32)].structure.set(vm, this, JSUint32Array::createStructure(vm, this, m_typedArrays[toIndex(TypeUint32)].prototype.get())); 316 m_typedArrays[toIndex(TypeFloat32)].structure.set(vm, this, JSFloat32Array::createStructure(vm, this, m_typedArrays[toIndex(TypeFloat32)].prototype.get())); 317 m_typedArrays[toIndex(TypeFloat64)].structure.set(vm, this, JSFloat64Array::createStructure(vm, this, m_typedArrays[toIndex(TypeFloat64)].prototype.get())); 318 m_typedArrays[toIndex(TypeDataView)].structure.set(vm, this, JSDataView::createStructure(vm, this, m_typedArrays[toIndex(TypeDataView)].prototype.get())); 319 320 m_nameScopeStructure.set(vm, this, JSNameScope::createStructure(vm, this, jsNull())); 321 m_activationStructure.set(vm, this, JSActivation::createStructure(vm, this, jsNull())); 322 m_strictEvalActivationStructure.set(vm, this, StrictEvalActivation::createStructure(vm, this, jsNull())); 323 m_withScopeStructure.set(vm, this, JSWithScope::createStructure(vm, this, jsNull())); 324 325 m_nullPrototypeObjectStructure.set(vm, this, JSFinalObject::createStructure(vm, this, jsNull(), JSFinalObject::defaultInlineCapacity())); 326 327 m_callbackFunctionStructure.set(vm, this, JSCallbackFunction::createStructure(vm, this, m_functionPrototype.get())); 328 m_argumentsStructure.set(vm, this, Arguments::createStructure(vm, this, m_objectPrototype.get())); 329 m_callbackConstructorStructure.set(vm, this, JSCallbackConstructor::createStructure(vm, this, m_objectPrototype.get())); 330 m_callbackObjectStructure.set(vm, this, JSCallbackObject<JSDestructibleObject>::createStructure(vm, this, m_objectPrototype.get())); 331#if JSC_OBJC_API_ENABLED 332 m_objcCallbackFunctionStructure.set(vm, this, ObjCCallbackFunction::createStructure(vm, this, m_functionPrototype.get())); 333 m_objcWrapperObjectStructure.set(vm, this, JSCallbackObject<JSAPIWrapperObject>::createStructure(vm, this, m_objectPrototype.get())); 334#endif 335 336 m_arrayPrototype.set(vm, this, ArrayPrototype::create(vm, this, ArrayPrototype::createStructure(vm, this, m_objectPrototype.get()))); 337 338 m_originalArrayStructureForIndexingShape[UndecidedShape >> IndexingShapeShift].set(vm, this, JSArray::createStructure(vm, this, m_arrayPrototype.get(), ArrayWithUndecided)); 339 m_originalArrayStructureForIndexingShape[Int32Shape >> IndexingShapeShift].set(vm, this, JSArray::createStructure(vm, this, m_arrayPrototype.get(), ArrayWithInt32)); 340 m_originalArrayStructureForIndexingShape[DoubleShape >> IndexingShapeShift].set(vm, this, JSArray::createStructure(vm, this, m_arrayPrototype.get(), ArrayWithDouble)); 341 m_originalArrayStructureForIndexingShape[ContiguousShape >> IndexingShapeShift].set(vm, this, JSArray::createStructure(vm, this, m_arrayPrototype.get(), ArrayWithContiguous)); 342 m_originalArrayStructureForIndexingShape[ArrayStorageShape >> IndexingShapeShift].set(vm, this, JSArray::createStructure(vm, this, m_arrayPrototype.get(), ArrayWithArrayStorage)); 343 m_originalArrayStructureForIndexingShape[SlowPutArrayStorageShape >> IndexingShapeShift].set(vm, this, JSArray::createStructure(vm, this, m_arrayPrototype.get(), ArrayWithSlowPutArrayStorage)); 344 for (unsigned i = 0; i < NumberOfIndexingShapes; ++i) 345 m_arrayStructureForIndexingShapeDuringAllocation[i] = m_originalArrayStructureForIndexingShape[i]; 346 347 m_regExpMatchesArrayStructure.set(vm, this, RegExpMatchesArray::createStructure(vm, this, m_arrayPrototype.get())); 348 349 RegExp* emptyRegex = RegExp::create(vm, "", NoFlags); 350 351 m_regExpPrototype.set(vm, this, RegExpPrototype::create(vm, RegExpPrototype::createStructure(vm, this, m_objectPrototype.get()), emptyRegex)); 352 m_regExpStructure.set(vm, this, RegExpObject::createStructure(vm, this, m_regExpPrototype.get())); 353 354#if ENABLE(PROMISES) 355 m_promisePrototype.set(vm, this, JSPromisePrototype::create(exec, this, JSPromisePrototype::createStructure(vm, this, m_objectPrototype.get()))); 356 m_promiseStructure.set(vm, this, JSPromise::createStructure(vm, this, m_promisePrototype.get())); 357#endif // ENABLE(PROMISES) 358 359#define CREATE_PROTOTYPE_FOR_SIMPLE_TYPE(capitalName, lowerName, properName, instanceType, jsName) \ 360 m_ ## lowerName ## Prototype.set(vm, this, capitalName##Prototype::create(vm, this, capitalName##Prototype::createStructure(vm, this, m_objectPrototype.get()))); \ 361 m_ ## properName ## Structure.set(vm, this, instanceType::createStructure(vm, this, m_ ## lowerName ## Prototype.get())); 362 363 FOR_EACH_SIMPLE_BUILTIN_TYPE(CREATE_PROTOTYPE_FOR_SIMPLE_TYPE) 364 365#undef CREATE_PROTOTYPE_FOR_SIMPLE_TYPE 366 367 // Constructors 368 369 ObjectConstructor* objectConstructor = ObjectConstructor::create(vm, ObjectConstructor::createStructure(vm, this, m_functionPrototype.get()), m_objectPrototype.get()); 370 m_objectConstructor.set(vm, this, objectConstructor); 371 JSCell* functionConstructor = FunctionConstructor::create(vm, FunctionConstructor::createStructure(vm, this, m_functionPrototype.get()), m_functionPrototype.get()); 372 JSCell* arrayConstructor = ArrayConstructor::create(vm, ArrayConstructor::createStructure(vm, this, m_functionPrototype.get()), m_arrayPrototype.get()); 373 374 m_regExpConstructor.set(vm, this, RegExpConstructor::create(vm, RegExpConstructor::createStructure(vm, this, m_functionPrototype.get()), m_regExpPrototype.get())); 375 376#define CREATE_CONSTRUCTOR_FOR_SIMPLE_TYPE(capitalName, lowerName, properName, instanceType, jsName) \ 377 capitalName ## Constructor* lowerName ## Constructor = capitalName ## Constructor::create(vm, capitalName ## Constructor::createStructure(vm, this, m_functionPrototype.get()), m_ ## lowerName ## Prototype.get()); \ 378 m_ ## lowerName ## Prototype->putDirectWithoutTransition(vm, vm.propertyNames->constructor, lowerName ## Constructor, DontEnum); \ 379 380 FOR_EACH_SIMPLE_BUILTIN_TYPE(CREATE_CONSTRUCTOR_FOR_SIMPLE_TYPE) 381 382#undef CREATE_CONSTRUCTOR_FOR_SIMPLE_TYPE 383 384 m_errorConstructor.set(vm, this, errorConstructor); 385 386 Structure* nativeErrorPrototypeStructure = NativeErrorPrototype::createStructure(vm, this, m_errorPrototype.get()); 387 Structure* nativeErrorStructure = NativeErrorConstructor::createStructure(vm, this, m_functionPrototype.get()); 388 m_evalErrorConstructor.set(vm, this, NativeErrorConstructor::create(vm, this, nativeErrorStructure, nativeErrorPrototypeStructure, ASCIILiteral("EvalError"))); 389 m_rangeErrorConstructor.set(vm, this, NativeErrorConstructor::create(vm, this, nativeErrorStructure, nativeErrorPrototypeStructure, ASCIILiteral("RangeError"))); 390 m_referenceErrorConstructor.set(vm, this, NativeErrorConstructor::create(vm, this, nativeErrorStructure, nativeErrorPrototypeStructure, ASCIILiteral("ReferenceError"))); 391 m_syntaxErrorConstructor.set(vm, this, NativeErrorConstructor::create(vm, this, nativeErrorStructure, nativeErrorPrototypeStructure, ASCIILiteral("SyntaxError"))); 392 m_typeErrorConstructor.set(vm, this, NativeErrorConstructor::create(vm, this, nativeErrorStructure, nativeErrorPrototypeStructure, ASCIILiteral("TypeError"))); 393 m_URIErrorConstructor.set(vm, this, NativeErrorConstructor::create(vm, this, nativeErrorStructure, nativeErrorPrototypeStructure, ASCIILiteral("URIError"))); 394#if ENABLE(PROMISES) 395 m_promiseConstructor.set(vm, this, JSPromiseConstructor::create(vm, JSPromiseConstructor::createStructure(vm, this, m_functionPrototype.get()), m_promisePrototype.get())); 396#endif 397 398 m_objectPrototype->putDirectWithoutTransition(vm, vm.propertyNames->constructor, objectConstructor, DontEnum); 399 m_functionPrototype->putDirectWithoutTransition(vm, vm.propertyNames->constructor, functionConstructor, DontEnum); 400 m_arrayPrototype->putDirectWithoutTransition(vm, vm.propertyNames->constructor, arrayConstructor, DontEnum); 401 m_regExpPrototype->putDirectWithoutTransition(vm, vm.propertyNames->constructor, m_regExpConstructor.get(), DontEnum); 402#if ENABLE(PROMISES) 403 m_promisePrototype->putDirectWithoutTransition(vm, vm.propertyNames->constructor, m_promiseConstructor.get(), DontEnum); 404#endif 405 406 putDirectWithoutTransition(vm, vm.propertyNames->Object, objectConstructor, DontEnum); 407 putDirectWithoutTransition(vm, vm.propertyNames->Function, functionConstructor, DontEnum); 408 putDirectWithoutTransition(vm, vm.propertyNames->Array, arrayConstructor, DontEnum); 409 putDirectWithoutTransition(vm, vm.propertyNames->RegExp, m_regExpConstructor.get(), DontEnum); 410 putDirectWithoutTransition(vm, vm.propertyNames->EvalError, m_evalErrorConstructor.get(), DontEnum); 411 putDirectWithoutTransition(vm, vm.propertyNames->RangeError, m_rangeErrorConstructor.get(), DontEnum); 412 putDirectWithoutTransition(vm, vm.propertyNames->ReferenceError, m_referenceErrorConstructor.get(), DontEnum); 413 putDirectWithoutTransition(vm, vm.propertyNames->SyntaxError, m_syntaxErrorConstructor.get(), DontEnum); 414 putDirectWithoutTransition(vm, vm.propertyNames->TypeError, m_typeErrorConstructor.get(), DontEnum); 415 putDirectWithoutTransition(vm, vm.propertyNames->URIError, m_URIErrorConstructor.get(), DontEnum); 416#if ENABLE(PROMISES) 417 putDirectWithoutTransition(vm, vm.propertyNames->Promise, m_promiseConstructor.get(), DontEnum); 418#endif 419 420 421#define PUT_CONSTRUCTOR_FOR_SIMPLE_TYPE(capitalName, lowerName, properName, instanceType, jsName) \ 422 putDirectWithoutTransition(vm, vm.propertyNames-> jsName, lowerName ## Constructor, DontEnum); \ 423 424 FOR_EACH_SIMPLE_BUILTIN_TYPE_WITH_CONSTRUCTOR(PUT_CONSTRUCTOR_FOR_SIMPLE_TYPE) 425 426#undef PUT_CONSTRUCTOR_FOR_SIMPLE_TYPE 427 PrototypeMap& prototypeMap = vm.prototypeMap; 428 Structure* iteratorResultStructure = prototypeMap.emptyObjectStructureForPrototype(m_objectPrototype.get(), JSFinalObject::defaultInlineCapacity()); 429 PropertyOffset offset; 430 iteratorResultStructure = Structure::addPropertyTransition(vm, iteratorResultStructure, vm.propertyNames->done, 0, 0, offset); 431 iteratorResultStructure = Structure::addPropertyTransition(vm, iteratorResultStructure, vm.propertyNames->value, 0, 0, offset); 432 m_iteratorResultStructure.set(vm, this, iteratorResultStructure); 433 434 m_evalFunction.set(vm, this, JSFunction::create(vm, this, 1, vm.propertyNames->eval.string(), globalFuncEval)); 435 putDirectWithoutTransition(vm, vm.propertyNames->eval, m_evalFunction.get(), DontEnum); 436 437 putDirectWithoutTransition(vm, vm.propertyNames->JSON, JSONObject::create(vm, JSONObject::createStructure(vm, this, m_objectPrototype.get())), DontEnum); 438 putDirectWithoutTransition(vm, vm.propertyNames->Math, MathObject::create(vm, this, MathObject::createStructure(vm, this, m_objectPrototype.get())), DontEnum); 439 440 std::array<InternalFunction*, NUMBER_OF_TYPED_ARRAY_TYPES> typedArrayConstructors; 441 typedArrayConstructors[toIndex(TypeInt8)] = JSInt8ArrayConstructor::create(vm, JSInt8ArrayConstructor::createStructure(vm, this, m_functionPrototype.get()), m_typedArrays[toIndex(TypeInt8)].prototype.get(), "Int8Array"); 442 typedArrayConstructors[toIndex(TypeInt16)] = JSInt16ArrayConstructor::create(vm, JSInt16ArrayConstructor::createStructure(vm, this, m_functionPrototype.get()), m_typedArrays[toIndex(TypeInt16)].prototype.get(), "Int16Array"); 443 typedArrayConstructors[toIndex(TypeInt32)] = JSInt32ArrayConstructor::create(vm, JSInt32ArrayConstructor::createStructure(vm, this, m_functionPrototype.get()), m_typedArrays[toIndex(TypeInt32)].prototype.get(), "Int32Array"); 444 typedArrayConstructors[toIndex(TypeUint8)] = JSUint8ArrayConstructor::create(vm, JSUint8ArrayConstructor::createStructure(vm, this, m_functionPrototype.get()), m_typedArrays[toIndex(TypeUint8)].prototype.get(), "Uint8Array"); 445 typedArrayConstructors[toIndex(TypeUint8Clamped)] = JSUint8ClampedArrayConstructor::create(vm, JSUint8ClampedArrayConstructor::createStructure(vm, this, m_functionPrototype.get()), m_typedArrays[toIndex(TypeUint8Clamped)].prototype.get(), "Uint8ClampedArray"); 446 typedArrayConstructors[toIndex(TypeUint16)] = JSUint16ArrayConstructor::create(vm, JSUint16ArrayConstructor::createStructure(vm, this, m_functionPrototype.get()), m_typedArrays[toIndex(TypeUint16)].prototype.get(), "Uint16Array"); 447 typedArrayConstructors[toIndex(TypeUint32)] = JSUint32ArrayConstructor::create(vm, JSUint32ArrayConstructor::createStructure(vm, this, m_functionPrototype.get()), m_typedArrays[toIndex(TypeUint32)].prototype.get(), "Uint32Array"); 448 typedArrayConstructors[toIndex(TypeFloat32)] = JSFloat32ArrayConstructor::create(vm, JSFloat32ArrayConstructor::createStructure(vm, this, m_functionPrototype.get()), m_typedArrays[toIndex(TypeFloat32)].prototype.get(), "Float32Array"); 449 typedArrayConstructors[toIndex(TypeFloat64)] = JSFloat64ArrayConstructor::create(vm, JSFloat64ArrayConstructor::createStructure(vm, this, m_functionPrototype.get()), m_typedArrays[toIndex(TypeFloat64)].prototype.get(), "Float64Array"); 450 typedArrayConstructors[toIndex(TypeDataView)] = JSDataViewConstructor::create(vm, JSDataViewConstructor::createStructure(vm, this, m_functionPrototype.get()), m_typedArrays[toIndex(TypeDataView)].prototype.get(), "DataView"); 451 452 for (unsigned typedArrayIndex = NUMBER_OF_TYPED_ARRAY_TYPES; typedArrayIndex--;) { 453 m_typedArrays[typedArrayIndex].prototype->putDirectWithoutTransition(vm, vm.propertyNames->constructor, typedArrayConstructors[typedArrayIndex], DontEnum); 454 putDirectWithoutTransition(vm, Identifier(exec, typedArrayConstructors[typedArrayIndex]->name(exec)), typedArrayConstructors[typedArrayIndex], DontEnum); 455 } 456 457 JSFunction* builtinLog = JSFunction::create(vm, this, 1, vm.propertyNames->emptyIdentifier.string(), globalFuncBuiltinLog); 458 GlobalPropertyInfo staticGlobals[] = { 459 GlobalPropertyInfo(vm.propertyNames->NaN, jsNaN(), DontEnum | DontDelete | ReadOnly), 460 GlobalPropertyInfo(vm.propertyNames->Infinity, jsNumber(std::numeric_limits<double>::infinity()), DontEnum | DontDelete | ReadOnly), 461 GlobalPropertyInfo(vm.propertyNames->undefinedKeyword, jsUndefined(), DontEnum | DontDelete | ReadOnly), 462 GlobalPropertyInfo(vm.propertyNames->undefinedPrivateName, jsUndefined(), DontEnum | DontDelete | ReadOnly), 463 GlobalPropertyInfo(vm.propertyNames->ObjectPrivateName, objectConstructor, DontEnum | DontDelete | ReadOnly), 464 GlobalPropertyInfo(vm.propertyNames->TypeErrorPrivateName, m_typeErrorConstructor.get(), DontEnum | DontDelete | ReadOnly), 465 GlobalPropertyInfo(vm.propertyNames->BuiltinLogPrivateName, builtinLog, DontEnum | DontDelete | ReadOnly) 466 }; 467 addStaticGlobals(staticGlobals, WTF_ARRAY_LENGTH(staticGlobals)); 468 469 m_specialPointers[Special::CallFunction] = m_callFunction.get(); 470 m_specialPointers[Special::ApplyFunction] = m_applyFunction.get(); 471 m_specialPointers[Special::ObjectConstructor] = objectConstructor; 472 m_specialPointers[Special::ArrayConstructor] = arrayConstructor; 473 474 ConsolePrototype* consolePrototype = ConsolePrototype::create(vm, this, ConsolePrototype::createStructure(vm, this, m_objectPrototype.get())); 475 m_consoleStructure.set(vm, this, JSConsole::createStructure(vm, this, consolePrototype)); 476 JSConsole* consoleObject = JSConsole::create(vm, m_consoleStructure.get()); 477 putDirectWithoutTransition(vm, Identifier(exec, "console"), consoleObject, DontEnum); 478 479 if (m_experimentsEnabled) { 480 NamePrototype* privateNamePrototype = NamePrototype::create(exec, NamePrototype::createStructure(vm, this, m_objectPrototype.get())); 481 m_privateNameStructure.set(vm, this, NameInstance::createStructure(vm, this, privateNamePrototype)); 482 483 JSCell* privateNameConstructor = NameConstructor::create(vm, NameConstructor::createStructure(vm, this, m_functionPrototype.get()), privateNamePrototype); 484 privateNamePrototype->putDirectWithoutTransition(vm, vm.propertyNames->constructor, privateNameConstructor, DontEnum); 485 putDirectWithoutTransition(vm, Identifier(exec, "Name"), privateNameConstructor, DontEnum); 486 } 487 488 resetPrototype(vm, prototype); 489} 490 491// Private namespace for helpers for JSGlobalObject::haveABadTime() 492namespace { 493 494class ObjectsWithBrokenIndexingFinder : public MarkedBlock::VoidFunctor { 495public: 496 ObjectsWithBrokenIndexingFinder(MarkedArgumentBuffer&, JSGlobalObject*); 497 void operator()(JSCell*); 498 499private: 500 MarkedArgumentBuffer& m_foundObjects; 501 JSGlobalObject* m_globalObject; 502}; 503 504ObjectsWithBrokenIndexingFinder::ObjectsWithBrokenIndexingFinder( 505 MarkedArgumentBuffer& foundObjects, JSGlobalObject* globalObject) 506 : m_foundObjects(foundObjects) 507 , m_globalObject(globalObject) 508{ 509} 510 511inline bool hasBrokenIndexing(JSObject* object) 512{ 513 // This will change if we have more indexing types. 514 IndexingType type = object->indexingType(); 515 // This could be made obviously more efficient, but isn't made so right now, because 516 // we expect this to be an unlikely slow path anyway. 517 return hasUndecided(type) || hasInt32(type) || hasDouble(type) || hasContiguous(type) || hasArrayStorage(type); 518} 519 520void ObjectsWithBrokenIndexingFinder::operator()(JSCell* cell) 521{ 522 if (!cell->isObject()) 523 return; 524 525 JSObject* object = asObject(cell); 526 527 // Run this filter first, since it's cheap, and ought to filter out a lot of objects. 528 if (!hasBrokenIndexing(object)) 529 return; 530 531 // We only want to have a bad time in the affected global object, not in the entire 532 // VM. But we have to be careful, since there may be objects that claim to belong to 533 // a different global object that have prototypes from our global object. 534 bool foundGlobalObject = false; 535 for (JSObject* current = object; ;) { 536 if (current->globalObject() == m_globalObject) { 537 foundGlobalObject = true; 538 break; 539 } 540 541 JSValue prototypeValue = current->prototype(); 542 if (prototypeValue.isNull()) 543 break; 544 current = asObject(prototypeValue); 545 } 546 if (!foundGlobalObject) 547 return; 548 549 m_foundObjects.append(object); 550} 551 552} // end private namespace for helpers for JSGlobalObject::haveABadTime() 553 554void JSGlobalObject::haveABadTime(VM& vm) 555{ 556 ASSERT(&vm == &this->vm()); 557 558 if (isHavingABadTime()) 559 return; 560 561 // Make sure that all allocations or indexed storage transitions that are inlining 562 // the assumption that it's safe to transition to a non-SlowPut array storage don't 563 // do so anymore. 564 m_havingABadTimeWatchpoint->fireAll(); 565 ASSERT(isHavingABadTime()); // The watchpoint is what tells us that we're having a bad time. 566 567 // Make sure that all JSArray allocations that load the appropriate structure from 568 // this object now load a structure that uses SlowPut. 569 for (unsigned i = 0; i < NumberOfIndexingShapes; ++i) 570 m_arrayStructureForIndexingShapeDuringAllocation[i].set(vm, this, originalArrayStructureForIndexingType(ArrayWithSlowPutArrayStorage)); 571 572 // Make sure that all objects that have indexed storage switch to the slow kind of 573 // indexed storage. 574 MarkedArgumentBuffer foundObjects; // Use MarkedArgumentBuffer because switchToSlowPutArrayStorage() may GC. 575 ObjectsWithBrokenIndexingFinder finder(foundObjects, this); 576 { 577 HeapIterationScope iterationScope(vm.heap); 578 vm.heap.objectSpace().forEachLiveCell(iterationScope, finder); 579 } 580 while (!foundObjects.isEmpty()) { 581 JSObject* object = asObject(foundObjects.last()); 582 foundObjects.removeLast(); 583 ASSERT(hasBrokenIndexing(object)); 584 object->switchToSlowPutArrayStorage(vm); 585 } 586} 587 588bool JSGlobalObject::objectPrototypeIsSane() 589{ 590 return !hasIndexedProperties(m_objectPrototype->indexingType()) 591 && m_objectPrototype->prototype().isNull(); 592} 593 594bool JSGlobalObject::arrayPrototypeChainIsSane() 595{ 596 return !hasIndexedProperties(m_arrayPrototype->indexingType()) 597 && m_arrayPrototype->prototype() == m_objectPrototype.get() 598 && objectPrototypeIsSane(); 599} 600 601bool JSGlobalObject::stringPrototypeChainIsSane() 602{ 603 return !hasIndexedProperties(m_stringPrototype->indexingType()) 604 && m_stringPrototype->prototype() == m_objectPrototype.get() 605 && objectPrototypeIsSane(); 606} 607 608void JSGlobalObject::createThrowTypeError(VM& vm) 609{ 610 JSFunction* thrower = JSFunction::create(vm, this, 0, String(), globalFuncThrowTypeError); 611 GetterSetter* getterSetter = GetterSetter::create(vm); 612 getterSetter->setGetter(vm, thrower); 613 getterSetter->setSetter(vm, thrower); 614 m_throwTypeErrorGetterSetter.set(vm, this, getterSetter); 615} 616 617// Set prototype, and also insert the object prototype at the end of the chain. 618void JSGlobalObject::resetPrototype(VM& vm, JSValue prototype) 619{ 620 setPrototype(vm, prototype); 621 622 JSObject* oldLastInPrototypeChain = lastInPrototypeChain(this); 623 JSObject* objectPrototype = m_objectPrototype.get(); 624 if (oldLastInPrototypeChain != objectPrototype) 625 oldLastInPrototypeChain->setPrototype(vm, objectPrototype); 626 627 // Whenever we change the prototype of the global object, we need to create a new JSProxy with the correct prototype. 628 setGlobalThis(vm, JSProxy::create(vm, JSProxy::createStructure(vm, this, prototype, PureForwardingProxyType), this)); 629} 630 631void JSGlobalObject::visitChildren(JSCell* cell, SlotVisitor& visitor) 632{ 633 JSGlobalObject* thisObject = jsCast<JSGlobalObject*>(cell); 634 ASSERT_GC_OBJECT_INHERITS(thisObject, info()); 635 COMPILE_ASSERT(StructureFlags & OverridesVisitChildren, OverridesVisitChildrenWithoutSettingFlag); 636 ASSERT(thisObject->structure()->typeInfo().overridesVisitChildren()); 637 Base::visitChildren(thisObject, visitor); 638 639 visitor.append(&thisObject->m_globalThis); 640 641 visitor.append(&thisObject->m_regExpConstructor); 642 visitor.append(&thisObject->m_errorConstructor); 643 visitor.append(&thisObject->m_evalErrorConstructor); 644 visitor.append(&thisObject->m_rangeErrorConstructor); 645 visitor.append(&thisObject->m_referenceErrorConstructor); 646 visitor.append(&thisObject->m_syntaxErrorConstructor); 647 visitor.append(&thisObject->m_typeErrorConstructor); 648 visitor.append(&thisObject->m_URIErrorConstructor); 649 visitor.append(&thisObject->m_objectConstructor); 650#if ENABLE(PROMISES) 651 visitor.append(&thisObject->m_promiseConstructor); 652#endif 653 654 visitor.append(&thisObject->m_evalFunction); 655 visitor.append(&thisObject->m_callFunction); 656 visitor.append(&thisObject->m_applyFunction); 657 visitor.append(&thisObject->m_throwTypeErrorGetterSetter); 658 659 visitor.append(&thisObject->m_objectPrototype); 660 visitor.append(&thisObject->m_functionPrototype); 661 visitor.append(&thisObject->m_arrayPrototype); 662 visitor.append(&thisObject->m_errorPrototype); 663#if ENABLE(PROMISES) 664 visitor.append(&thisObject->m_promisePrototype); 665#endif 666 667 visitor.append(&thisObject->m_withScopeStructure); 668 visitor.append(&thisObject->m_strictEvalActivationStructure); 669 visitor.append(&thisObject->m_activationStructure); 670 visitor.append(&thisObject->m_nameScopeStructure); 671 visitor.append(&thisObject->m_argumentsStructure); 672 for (unsigned i = 0; i < NumberOfIndexingShapes; ++i) 673 visitor.append(&thisObject->m_originalArrayStructureForIndexingShape[i]); 674 for (unsigned i = 0; i < NumberOfIndexingShapes; ++i) 675 visitor.append(&thisObject->m_arrayStructureForIndexingShapeDuringAllocation[i]); 676 visitor.append(&thisObject->m_booleanObjectStructure); 677 visitor.append(&thisObject->m_callbackConstructorStructure); 678 visitor.append(&thisObject->m_callbackFunctionStructure); 679 visitor.append(&thisObject->m_callbackObjectStructure); 680#if JSC_OBJC_API_ENABLED 681 visitor.append(&thisObject->m_objcCallbackFunctionStructure); 682 visitor.append(&thisObject->m_objcWrapperObjectStructure); 683#endif 684 visitor.append(&thisObject->m_nullPrototypeObjectStructure); 685 visitor.append(&thisObject->m_errorStructure); 686 visitor.append(&thisObject->m_functionStructure); 687 visitor.append(&thisObject->m_boundFunctionStructure); 688 visitor.append(&thisObject->m_namedFunctionStructure); 689 visitor.append(&thisObject->m_privateNameStructure); 690 visitor.append(&thisObject->m_regExpMatchesArrayStructure); 691 visitor.append(&thisObject->m_regExpStructure); 692 visitor.append(&thisObject->m_consoleStructure); 693 visitor.append(&thisObject->m_internalFunctionStructure); 694 695#if ENABLE(PROMISES) 696 visitor.append(&thisObject->m_promiseStructure); 697#endif // ENABLE(PROMISES) 698 699#define VISIT_SIMPLE_TYPE(CapitalName, lowerName, properName, instanceType, jsName) \ 700 visitor.append(&thisObject->m_ ## lowerName ## Prototype); \ 701 visitor.append(&thisObject->m_ ## properName ## Structure); \ 702 703 FOR_EACH_SIMPLE_BUILTIN_TYPE(VISIT_SIMPLE_TYPE) 704 705#undef VISIT_SIMPLE_TYPE 706 707 for (unsigned i = NUMBER_OF_TYPED_ARRAY_TYPES; i--;) { 708 visitor.append(&thisObject->m_typedArrays[i].prototype); 709 visitor.append(&thisObject->m_typedArrays[i].structure); 710 } 711} 712 713JSValue JSGlobalObject::toThis(JSCell*, ExecState* exec, ECMAMode ecmaMode) 714{ 715 if (ecmaMode == StrictMode) 716 return jsUndefined(); 717 return exec->globalThisValue(); 718} 719 720ExecState* JSGlobalObject::globalExec() 721{ 722 return CallFrame::create(m_globalCallFrame); 723} 724 725void JSGlobalObject::addStaticGlobals(GlobalPropertyInfo* globals, int count) 726{ 727 addRegisters(count); 728 729 for (int i = 0; i < count; ++i) { 730 GlobalPropertyInfo& global = globals[i]; 731 ASSERT(global.attributes & DontDelete); 732 733 int index = symbolTable()->size(); 734 SymbolTableEntry newEntry(index, global.attributes); 735 symbolTable()->add(global.identifier.impl(), newEntry); 736 registerAt(index).set(vm(), this, global.value); 737 } 738} 739 740bool JSGlobalObject::getOwnPropertySlot(JSObject* object, ExecState* exec, PropertyName propertyName, PropertySlot& slot) 741{ 742 JSGlobalObject* thisObject = jsCast<JSGlobalObject*>(object); 743 if (getStaticFunctionSlot<Base>(exec, ExecState::globalObjectTable(exec->vm()), thisObject, propertyName, slot)) 744 return true; 745 return symbolTableGet(thisObject, propertyName, slot); 746} 747 748void JSGlobalObject::clearRareData(JSCell* cell) 749{ 750 jsCast<JSGlobalObject*>(cell)->m_rareData.clear(); 751} 752 753void slowValidateCell(JSGlobalObject* globalObject) 754{ 755 RELEASE_ASSERT(globalObject->isGlobalObject()); 756 ASSERT_GC_OBJECT_INHERITS(globalObject, JSGlobalObject::info()); 757} 758 759UnlinkedProgramCodeBlock* JSGlobalObject::createProgramCodeBlock(CallFrame* callFrame, ProgramExecutable* executable, JSObject** exception) 760{ 761 ParserError error; 762 JSParserStrictness strictness = executable->isStrictMode() ? JSParseStrict : JSParseNormal; 763 DebuggerMode debuggerMode = hasDebugger() ? DebuggerOn : DebuggerOff; 764 ProfilerMode profilerMode = hasProfiler() ? ProfilerOn : ProfilerOff; 765 UnlinkedProgramCodeBlock* unlinkedCodeBlock = vm().codeCache()->getProgramCodeBlock(vm(), executable, executable->source(), strictness, debuggerMode, profilerMode, error); 766 767 if (hasDebugger()) 768 debugger()->sourceParsed(callFrame, executable->source().provider(), error.m_line, error.m_message); 769 770 if (error.m_type != ParserError::ErrorNone) { 771 *exception = error.toErrorObject(this, executable->source()); 772 return 0; 773 } 774 775 return unlinkedCodeBlock; 776} 777 778UnlinkedEvalCodeBlock* JSGlobalObject::createEvalCodeBlock(CallFrame* callFrame, EvalExecutable* executable) 779{ 780 ParserError error; 781 JSParserStrictness strictness = executable->isStrictMode() ? JSParseStrict : JSParseNormal; 782 DebuggerMode debuggerMode = hasDebugger() ? DebuggerOn : DebuggerOff; 783 ProfilerMode profilerMode = hasProfiler() ? ProfilerOn : ProfilerOff; 784 UnlinkedEvalCodeBlock* unlinkedCodeBlock = vm().codeCache()->getEvalCodeBlock(vm(), executable, executable->source(), strictness, debuggerMode, profilerMode, error); 785 786 if (hasDebugger()) 787 debugger()->sourceParsed(callFrame, executable->source().provider(), error.m_line, error.m_message); 788 789 if (error.m_type != ParserError::ErrorNone) { 790 throwVMError(callFrame, error.toErrorObject(this, executable->source())); 791 return 0; 792 } 793 794 return unlinkedCodeBlock; 795} 796 797void JSGlobalObject::setRemoteDebuggingEnabled(bool enabled) 798{ 799#if ENABLE(REMOTE_INSPECTOR) 800 m_inspectorDebuggable->setRemoteDebuggingAllowed(enabled); 801#else 802 UNUSED_PARAM(enabled); 803#endif 804} 805 806bool JSGlobalObject::remoteDebuggingEnabled() const 807{ 808#if ENABLE(REMOTE_INSPECTOR) 809 return m_inspectorDebuggable->remoteDebuggingAllowed(); 810#else 811 return false; 812#endif 813} 814 815#if ENABLE(WEB_REPLAY) 816void JSGlobalObject::setInputCursor(PassRefPtr<InputCursor> prpCursor) 817{ 818 m_inputCursor = prpCursor; 819 ASSERT(m_inputCursor); 820 821 InputCursor& cursor = inputCursor(); 822 // Save or set the random seed. This performed here rather than the constructor 823 // to avoid threading the input cursor through all the abstraction layers. 824 if (cursor.isCapturing()) 825 cursor.appendInput<SetRandomSeed>(m_weakRandom.seedUnsafe()); 826 else if (cursor.isReplaying()) { 827 if (SetRandomSeed* input = cursor.fetchInput<SetRandomSeed>()) 828 m_weakRandom.initializeSeed(static_cast<unsigned>(input->randomSeed())); 829 } 830} 831#endif 832 833void JSGlobalObject::setName(const String& name) 834{ 835 m_name = name; 836 837#if ENABLE(REMOTE_INSPECTOR) 838 m_inspectorDebuggable->update(); 839#endif 840} 841 842void JSGlobalObject::queueMicrotask(PassRefPtr<Microtask> task) 843{ 844 if (globalObjectMethodTable()->queueTaskToEventLoop) 845 globalObjectMethodTable()->queueTaskToEventLoop(this, task); 846 else 847 WTFLogAlways("ERROR: Event loop not supported."); 848} 849 850} // namespace JSC 851