Source/JavaScriptCore/runtime/JSGlobalObject.cpp

   1 /*
   2  * Copyright (C) 2007-2017 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 "ArrayConstructor.h"
  34 #include "ArrayIteratorAdaptiveWatchpoint.h"
  35 #include "ArrayIteratorPrototype.h"
  36 #include "ArrayPrototype.h"
  37 #include "AtomicsObject.h"
  38 #include "AsyncFunctionConstructor.h"
  39 #include "AsyncFunctionPrototype.h"
  40 #include "BooleanConstructor.h"
  41 #include "BooleanPrototype.h"
  42 #include "BuiltinNames.h"
  43 #include "ClonedArguments.h"
  44 #include "CodeBlock.h"
  45 #include "CodeCache.h"
  46 #include "ConsoleObject.h"
  47 #include "DateConstructor.h"
  48 #include "DatePrototype.h"
  49 #include "Debugger.h"
  50 #include "DebuggerScope.h"
  51 #include "DirectArguments.h"
  52 #include "DirectEvalExecutable.h"
  53 #include "ECMAScriptSpecInternalFunctions.h"
  54 #include "Error.h"
  55 #include "ErrorConstructor.h"
  56 #include "ErrorPrototype.h"
  57 #include "FunctionConstructor.h"
  58 #include "FunctionPrototype.h"
  59 #include "GeneratorFunctionConstructor.h"
  60 #include "GeneratorFunctionPrototype.h"
  61 #include "GeneratorPrototype.h"
  62 #include "GetterSetter.h"
  63 #include "HeapIterationScope.h"
  64 #include "IndirectEvalExecutable.h"
  65 #include "InspectorInstrumentationObject.h"
  66 #include "Interpreter.h"
  67 #include "IteratorPrototype.h"
  68 #include "JSAPIWrapperObject.h"
  69 #include "JSArrayBuffer.h"
  70 #include "JSArrayBufferConstructor.h"
  71 #include "JSArrayBufferPrototype.h"
  72 #include "JSAsyncFunction.h"
  73 #include "JSBoundFunction.h"
  74 #include "JSCInlines.h"
  75 #include "JSCallbackConstructor.h"
  76 #include "JSCallbackFunction.h"
  77 #include "JSCallbackObject.h"
  78 #include "JSCustomGetterSetterFunction.h"
  79 #include "JSDataView.h"
  80 #include "JSDataViewPrototype.h"
  81 #include "JSDollarVM.h"
  82 #include "JSDollarVMPrototype.h"
  83 #include "JSFunction.h"
  84 #include "JSGeneratorFunction.h"
  85 #include "JSGenericTypedArrayViewConstructorInlines.h"
  86 #include "JSGenericTypedArrayViewInlines.h"
  87 #include "JSGenericTypedArrayViewPrototypeInlines.h"
  88 #include "JSGlobalObjectFunctions.h"
  89 #include "JSInternalPromise.h"
  90 #include "JSInternalPromiseConstructor.h"
  91 #include "JSInternalPromisePrototype.h"
  92 #include "JSJob.h"
  93 #include "JSLexicalEnvironment.h"
  94 #include "JSLock.h"
  95 #include "JSMap.h"
  96 #include "JSMapIterator.h"
  97 #include "JSModuleEnvironment.h"
  98 #include "JSModuleLoader.h"
  99 #include "JSModuleNamespaceObject.h"
 100 #include "JSModuleRecord.h"
 101 #include "JSNativeStdFunction.h"
 102 #include "JSONObject.h"
 103 #include "JSPromise.h"
 104 #include "JSPromiseConstructor.h"
 105 #include "JSPromisePrototype.h"
 106 #include "JSPropertyNameIterator.h"
 107 #include "JSSet.h"
 108 #include "JSSetIterator.h"
 109 #include "JSStringIterator.h"
 110 #include "JSTemplateRegistryKey.h"
 111 #include "JSTypedArrayConstructors.h"
 112 #include "JSTypedArrayPrototypes.h"
 113 #include "JSTypedArrayViewConstructor.h"
 114 #include "JSTypedArrayViewPrototype.h"
 115 #include "JSTypedArrays.h"
 116 #include "JSWeakMap.h"
 117 #include "JSWeakSet.h"
 118 #include "JSWebAssembly.h"
 119 #include "JSWithScope.h"
 120 #include "LazyClassStructureInlines.h"
 121 #include "LazyPropertyInlines.h"
 122 #include "Lookup.h"
 123 #include "MapConstructor.h"
 124 #include "MapIteratorPrototype.h"
 125 #include "MapPrototype.h"
 126 #include "MarkedSpaceInlines.h"
 127 #include "MathObject.h"
 128 #include "Microtask.h"
 129 #include "ModuleLoaderPrototype.h"
 130 #include "NativeErrorConstructor.h"
 131 #include "NativeErrorPrototype.h"
 132 #include "NullGetterFunction.h"
 133 #include "NullSetterFunction.h"
 134 #include "NumberConstructor.h"
 135 #include "NumberPrototype.h"
 136 #include "ObjCCallbackFunction.h"
 137 #include "ObjectConstructor.h"
 138 #include "ObjectPropertyConditionSet.h"
 139 #include "ObjectPrototype.h"
 140 #include "ParserError.h"
 141 #include "ProxyConstructor.h"
 142 #include "ProxyObject.h"
 143 #include "ProxyRevoke.h"
 144 #include "ReflectObject.h"
 145 #include "RegExpConstructor.h"
 146 #include "RegExpMatchesArray.h"
 147 #include "RegExpObject.h"
 148 #include "RegExpPrototype.h"
 149 #include "ScopedArguments.h"
 150 #include "SetConstructor.h"
 151 #include "SetIteratorPrototype.h"
 152 #include "SetPrototype.h"
 153 #include "StrictEvalActivation.h"
 154 #include "StringConstructor.h"
 155 #include "StringIteratorPrototype.h"
 156 #include "StringPrototype.h"
 157 #include "Symbol.h"
 158 #include "SymbolConstructor.h"
 159 #include "SymbolPrototype.h"
 160 #include "VariableWriteFireDetail.h"
 161 #include "WeakGCMapInlines.h"
 162 #include "WeakMapConstructor.h"
 163 #include "WeakMapPrototype.h"
 164 #include "WeakSetConstructor.h"
 165 #include "WeakSetPrototype.h"
 166 #include <wtf/RandomNumber.h>
 167
 168 #if ENABLE(INTL)
 169 #include "IntlObject.h"
 170 #include <unicode/ucol.h>
 171 #include <unicode/udat.h>
 172 #include <unicode/unum.h>
 173 #endif // ENABLE(INTL)
 174
 175 #if ENABLE(REMOTE_INSPECTOR)
 176 #include "JSGlobalObjectDebuggable.h"
 177 #include "JSGlobalObjectInspectorController.h"
 178 #endif
 179
 180 #if ENABLE(WEB_REPLAY)
 181 #include "EmptyInputCursor.h"
 182 #include "JSReplayInputs.h"
 183 #endif
 184
 185 namespace JSC {
 186
 187 static JSValue createProxyProperty(VM& vm, JSObject* object)
 188 {
 189     JSGlobalObject* global = jsCast<JSGlobalObject*>(object);
 190     return ProxyConstructor::create(vm, ProxyConstructor::createStructure(vm, global, global->functionPrototype()));
 191 }
 192
 193 static JSValue createJSONProperty(VM& vm, JSObject* object)
 194 {
 195     JSGlobalObject* global = jsCast<JSGlobalObject*>(object);
 196     return JSONObject::create(vm, JSONObject::createStructure(vm, global, global->objectPrototype()));
 197 }
 198
 199 static JSValue createMathProperty(VM& vm, JSObject* object)
 200 {
 201     JSGlobalObject* global = jsCast<JSGlobalObject*>(object);
 202     return MathObject::create(vm, global, MathObject::createStructure(vm, global, global->objectPrototype()));
 203 }
 204
 205 static JSValue createConsoleProperty(VM& vm, JSObject* object)
 206 {
 207     JSGlobalObject* global = jsCast<JSGlobalObject*>(object);
 208     return ConsoleObject::create(vm, global, ConsoleObject::createStructure(vm, global, constructEmptyObject(global->globalExec())));
 209 }
 210
 211 static JSValue createAtomicsProperty(VM& vm, JSObject* object)
 212 {
 213     JSGlobalObject* global = jsCast<JSGlobalObject*>(object);
 214     return AtomicsObject::create(vm, global, AtomicsObject::createStructure(vm, global, global->objectPrototype()));
 215 }
 216
 217 static EncodedJSValue JSC_HOST_CALL makeBoundFunction(ExecState* exec)
 218 {
 219     VM& vm = exec->vm();
 220     JSGlobalObject* globalObject = exec->lexicalGlobalObject();
 221
 222     JSObject* target = asObject(exec->uncheckedArgument(0));
 223     JSValue boundThis = exec->uncheckedArgument(1);
 224     JSValue boundArgs = exec->uncheckedArgument(2);
 225     JSValue length = exec->uncheckedArgument(3);
 226     JSString* name = asString(exec->uncheckedArgument(4));
 227
 228     return JSValue::encode(JSBoundFunction::create(
 229         vm, exec, globalObject, target, boundThis, boundArgs.isCell() ? jsCast<JSArray*>(boundArgs) : nullptr, length.asInt32(), name->value(exec)));
 230 }
 231
 232 static EncodedJSValue JSC_HOST_CALL hasOwnLengthProperty(ExecState* exec)
 233 {
 234     VM& vm = exec->vm();
 235     JSObject* target = asObject(exec->uncheckedArgument(0));
 236     return JSValue::encode(jsBoolean(target->hasOwnProperty(exec, vm.propertyNames->length)));
 237 }
 238
 239 } // namespace JSC
 240
 241 #include "JSGlobalObject.lut.h"
 242
 243 namespace JSC {
 244
 245 const ClassInfo JSGlobalObject::s_info = { "GlobalObject", &Base::s_info, &globalObjectTable, CREATE_METHOD_TABLE(JSGlobalObject) };
 246
 247 const GlobalObjectMethodTable JSGlobalObject::s_globalObjectMethodTable = {
 248     &supportsRichSourceInfo,
 249     &shouldInterruptScript,
 250     &javaScriptRuntimeFlags,
 251     nullptr,
 252     &shouldInterruptScriptBeforeTimeout,
 253     nullptr,
 254     nullptr,
 255     nullptr,
 256     nullptr,
 257     nullptr,
 258     nullptr
 259 };
 260
 261 /* Source for JSGlobalObject.lut.h
 262 @begin globalObjectTable
 263   parseFloat            globalFuncParseFloat                         DontEnum|Function 1
 264   isNaN                 JSBuiltin                                    DontEnum|Function 1
 265   isFinite              JSBuiltin                                    DontEnum|Function 1
 266   escape                globalFuncEscape                             DontEnum|Function 1
 267   unescape              globalFuncUnescape                           DontEnum|Function 1
 268   decodeURI             globalFuncDecodeURI                          DontEnum|Function 1
 269   decodeURIComponent    globalFuncDecodeURIComponent                 DontEnum|Function 1
 270   encodeURI             globalFuncEncodeURI                          DontEnum|Function 1
 271   encodeURIComponent    globalFuncEncodeURIComponent                 DontEnum|Function 1
 272   EvalError             JSGlobalObject::m_evalErrorConstructor       DontEnum|CellProperty
 273   ReferenceError        JSGlobalObject::m_referenceErrorConstructor  DontEnum|CellProperty
 274   SyntaxError           JSGlobalObject::m_syntaxErrorConstructor     DontEnum|CellProperty
 275   URIError              JSGlobalObject::m_URIErrorConstructor        DontEnum|CellProperty
 276   Proxy                 createProxyProperty                          DontEnum|PropertyCallback
 277   JSON                  createJSONProperty                           DontEnum|PropertyCallback
 278   Math                  createMathProperty                           DontEnum|PropertyCallback
 279   Atomics               createAtomicsProperty                        DontEnum|PropertyCallback
 280   console               createConsoleProperty                        DontEnum|PropertyCallback
 281   Int8Array             JSGlobalObject::m_typedArrayInt8             DontEnum|ClassStructure
 282   Int16Array            JSGlobalObject::m_typedArrayInt16            DontEnum|ClassStructure
 283   Int32Array            JSGlobalObject::m_typedArrayInt32            DontEnum|ClassStructure
 284   Uint8Array            JSGlobalObject::m_typedArrayUint8            DontEnum|ClassStructure
 285   Uint8ClampedArray     JSGlobalObject::m_typedArrayUint8Clamped     DontEnum|ClassStructure
 286   Uint16Array           JSGlobalObject::m_typedArrayUint16           DontEnum|ClassStructure
 287   Uint32Array           JSGlobalObject::m_typedArrayUint32           DontEnum|ClassStructure
 288   Float32Array          JSGlobalObject::m_typedArrayFloat32          DontEnum|ClassStructure
 289   Float64Array          JSGlobalObject::m_typedArrayFloat64          DontEnum|ClassStructure
 290   DataView              JSGlobalObject::m_typedArrayDataView         DontEnum|ClassStructure
 291   Set                   JSGlobalObject::m_setStructure               DontEnum|ClassStructure
 292   Date                  JSGlobalObject::m_dateStructure              DontEnum|ClassStructure
 293   Boolean               JSGlobalObject::m_booleanObjectStructure     DontEnum|ClassStructure
 294   Number                JSGlobalObject::m_numberObjectStructure      DontEnum|ClassStructure
 295   WeakMap               JSGlobalObject::m_weakMapStructure           DontEnum|ClassStructure
 296   WeakSet               JSGlobalObject::m_weakSetStructure           DontEnum|ClassStructure
 297 @end
 298 */
 299
 300 static EncodedJSValue JSC_HOST_CALL enqueueJob(ExecState* exec)
 301 {
 302     VM& vm = exec->vm();
 303     JSGlobalObject* globalObject = exec->lexicalGlobalObject();
 304
 305     JSValue job = exec->argument(0);
 306     JSValue arguments = exec->argument(1);
 307     ASSERT(arguments.inherits(vm, JSArray::info()));
 308
 309     globalObject->queueMicrotask(createJSJob(vm, job, jsCast<JSArray*>(arguments)));
 310
 311     return JSValue::encode(jsUndefined());
 312 }
 313
 314 JSGlobalObject::JSGlobalObject(VM& vm, Structure* structure, const GlobalObjectMethodTable* globalObjectMethodTable)
 315     : Base(vm, structure, 0)
 316     , m_vm(vm)
 317 #if ENABLE(WEB_REPLAY)
 318     , m_inputCursor(EmptyInputCursor::create())
 319 #endif
 320     , m_masqueradesAsUndefinedWatchpoint(adoptRef(new WatchpointSet(IsWatched)))
 321     , m_havingABadTimeWatchpoint(adoptRef(new WatchpointSet(IsWatched)))
 322     , m_varInjectionWatchpoint(adoptRef(new WatchpointSet(IsWatched)))
 323     , m_weakRandom(Options::forceWeakRandomSeed() ? Options::forcedWeakRandomSeed() : static_cast<unsigned>(randomNumber() * (std::numeric_limits<unsigned>::max() + 1.0)))
 324     , m_arrayIteratorProtocolWatchpoint(IsWatched)
 325     , m_arraySpeciesWatchpoint(ClearWatchpoint)
 326     , m_templateRegistry(vm)
 327     , m_evalEnabled(true)
 328     , m_runtimeFlags()
 329     , m_consoleClient(nullptr)
 330     , m_globalObjectMethodTable(globalObjectMethodTable ? globalObjectMethodTable : &s_globalObjectMethodTable)
 331 {
 332 }
 333
 334 JSGlobalObject::~JSGlobalObject()
 335 {
 336 #if ENABLE(REMOTE_INSPECTOR)
 337     m_inspectorController->globalObjectDestroyed();
 338 #endif
 339
 340     if (m_debugger)
 341         m_debugger->detach(this, Debugger::GlobalObjectIsDestructing);
 342 }
 343
 344 void JSGlobalObject::destroy(JSCell* cell)
 345 {
 346     static_cast<JSGlobalObject*>(cell)->JSGlobalObject::~JSGlobalObject();
 347 }
 348
 349 void JSGlobalObject::setGlobalThis(VM& vm, JSObject* globalThis)
 350 {
 351     m_globalThis.set(vm, this, globalThis);
 352 }
 353
 354 static JSObject* getGetterById(ExecState* exec, JSObject* base, const Identifier& ident)
 355 {
 356     JSValue baseValue = JSValue(base);
 357     PropertySlot slot(baseValue, PropertySlot::InternalMethodType::VMInquiry);
 358     baseValue.getPropertySlot(exec, ident, slot);
 359     return slot.getPureResult().toObject(exec);
 360 }
 361
 362 void JSGlobalObject::init(VM& vm)
 363 {
 364     ASSERT(vm.currentThreadIsHoldingAPILock());
 365     auto catchScope = DECLARE_CATCH_SCOPE(vm);
 366
 367     Base::setStructure(vm, Structure::toCacheableDictionaryTransition(vm, structure()));
 368
 369     m_debugger = 0;
 370
 371 #if ENABLE(REMOTE_INSPECTOR)
 372     m_inspectorController = std::make_unique<Inspector::JSGlobalObjectInspectorController>(*this);
 373     m_inspectorDebuggable = std::make_unique<JSGlobalObjectDebuggable>(*this);
 374     m_inspectorDebuggable->init();
 375     m_consoleClient = m_inspectorController->consoleClient();
 376 #endif
 377
 378     m_functionPrototype.set(vm, this, FunctionPrototype::create(vm, FunctionPrototype::createStructure(vm, this, jsNull()))); // The real prototype will be set once ObjectPrototype is created.
 379     m_calleeStructure.set(vm, this, JSCallee::createStructure(vm, this, jsNull()));
 380
 381     m_globalLexicalEnvironment.set(vm, this, JSGlobalLexicalEnvironment::create(vm, JSGlobalLexicalEnvironment::createStructure(vm, this), this));
 382     // Need to create the callee structure (above) before creating the callee.
 383     JSCallee* globalCallee = JSCallee::create(vm, this, globalScope());
 384     m_globalCallee.set(vm, this, globalCallee);
 385
 386     ExecState::initGlobalExec(JSGlobalObject::globalExec(), globalCallee);
 387     ExecState* exec = JSGlobalObject::globalExec();
 388
 389     m_functionStructure.set(vm, this, JSFunction::createStructure(vm, this, m_functionPrototype.get()));
 390     m_customGetterSetterFunctionStructure.initLater(
 391         [] (const Initializer<Structure>& init) {
 392             init.set(JSCustomGetterSetterFunction::createStructure(init.vm, init.owner, init.owner->m_functionPrototype.get()));
 393         });
 394     m_boundFunctionStructure.initLater(
 395         [] (const Initializer<Structure>& init) {
 396             init.set(JSBoundFunction::createStructure(init.vm, init.owner, init.owner->m_functionPrototype.get()));
 397         });
 398     m_getterSetterStructure.set(vm, this, GetterSetter::createStructure(vm, this, jsNull()));
 399     m_nativeStdFunctionStructure.initLater(
 400         [] (const Initializer<Structure>& init) {
 401             init.set(JSNativeStdFunction::createStructure(init.vm, init.owner, init.owner->m_functionPrototype.get()));
 402         });
 403     m_namedFunctionStructure.initLater(
 404         [] (const Initializer<Structure>& init) {
 405             init.set(Structure::addPropertyTransition(init.vm, init.owner->m_functionStructure.get(), init.vm.propertyNames->name, DontDelete | ReadOnly | DontEnum, init.owner->m_functionNameOffset));
 406         });
 407     JSFunction* callFunction = 0;
 408     JSFunction* applyFunction = 0;
 409     JSFunction* hasInstanceSymbolFunction = 0;
 410     m_functionPrototype->addFunctionProperties(exec, this, &callFunction, &applyFunction, &hasInstanceSymbolFunction);
 411     m_callFunction.set(vm, this, callFunction);
 412     m_applyFunction.set(vm, this, applyFunction);
 413     m_arrayProtoToStringFunction.initLater(
 414         [] (const Initializer<JSFunction>& init) {
 415             init.set(JSFunction::create(init.vm, init.owner, 0, init.vm.propertyNames->toString.string(), arrayProtoFuncToString, NoIntrinsic));
 416         });
 417     m_arrayProtoValuesFunction.initLater(
 418         [] (const Initializer<JSFunction>& init) {
 419             init.set(JSFunction::createBuiltinFunction(init.vm, arrayPrototypeValuesCodeGenerator(init.vm), init.owner));
 420         });
 421     m_initializePromiseFunction.initLater(
 422         [] (const Initializer<JSFunction>& init) {
 423             init.set(JSFunction::createBuiltinFunction(init.vm, promiseOperationsInitializePromiseCodeGenerator(init.vm), init.owner));
 424         });
 425
 426     m_iteratorProtocolFunction.initLater(
 427         [] (const Initializer<JSFunction>& init) {
 428             init.set(JSFunction::createBuiltinFunction(init.vm, iteratorHelpersPerformIterationCodeGenerator(init.vm), init.owner));
 429         });
 430
 431     m_newPromiseCapabilityFunction.set(vm, this, JSFunction::createBuiltinFunction(vm, promiseOperationsNewPromiseCapabilityCodeGenerator(vm), this));
 432     m_functionProtoHasInstanceSymbolFunction.set(vm, this, hasInstanceSymbolFunction);
 433     m_throwTypeErrorGetterSetter.initLater(
 434         [] (const Initializer<GetterSetter>& init) {
 435             JSFunction* thrower = init.owner->throwTypeErrorFunction();
 436             GetterSetter* getterSetter = GetterSetter::create(init.vm, init.owner);
 437             getterSetter->setGetter(init.vm, init.owner, thrower);
 438             getterSetter->setSetter(init.vm, init.owner, thrower);
 439             init.set(getterSetter);
 440         });
 441
 442     m_nullGetterFunction.set(vm, this, NullGetterFunction::create(vm, NullGetterFunction::createStructure(vm, this, m_functionPrototype.get())));
 443     m_nullSetterFunction.set(vm, this, NullSetterFunction::create(vm, NullSetterFunction::createStructure(vm, this, m_functionPrototype.get())));
 444     m_objectPrototype.set(vm, this, ObjectPrototype::create(vm, this, ObjectPrototype::createStructure(vm, this, jsNull())));
 445     GetterSetter* protoAccessor = GetterSetter::create(vm, this);
 446     protoAccessor->setGetter(vm, this, JSFunction::create(vm, this, 0, makeString("get ", vm.propertyNames->underscoreProto.string()), globalFuncProtoGetter));
 447     protoAccessor->setSetter(vm, this, JSFunction::create(vm, this, 0, makeString("set ", vm.propertyNames->underscoreProto.string()), globalFuncProtoSetter));
 448     m_objectPrototype->putDirectNonIndexAccessor(vm, vm.propertyNames->underscoreProto, protoAccessor, Accessor | DontEnum);
 449     m_functionPrototype->structure()->setPrototypeWithoutTransition(vm, m_objectPrototype.get());
 450     m_objectStructureForObjectConstructor.set(vm, this, vm.prototypeMap.emptyObjectStructureForPrototype(this, m_objectPrototype.get(), JSFinalObject::defaultInlineCapacity()));
 451     m_objectProtoValueOfFunction.set(vm, this, jsCast<JSFunction*>(objectPrototype()->getDirect(vm, vm.propertyNames->valueOf)));
 452
 453     JSFunction* thrower = JSFunction::create(vm, this, 0, String(), globalFuncThrowTypeErrorArgumentsCalleeAndCaller);
 454     GetterSetter* getterSetter = GetterSetter::create(vm, this);
 455     getterSetter->setGetter(vm, this, thrower);
 456     getterSetter->setSetter(vm, this, thrower);
 457     m_throwTypeErrorArgumentsCalleeAndCallerGetterSetter.set(vm, this, getterSetter);
 458
 459     m_functionPrototype->initRestrictedProperties(exec, this);
 460
 461     m_speciesGetterSetter.set(vm, this, GetterSetter::create(vm, this));
 462     m_speciesGetterSetter->setGetter(vm, this, JSFunction::createBuiltinFunction(vm, globalOperationsSpeciesGetterCodeGenerator(vm), this, "get [Symbol.species]"));
 463
 464     m_typedArrayProto.initLater(
 465         [] (const Initializer<JSTypedArrayViewPrototype>& init) {
 466             init.set(JSTypedArrayViewPrototype::create(init.vm, init.owner, JSTypedArrayViewPrototype::createStructure(init.vm, init.owner, init.owner->m_objectPrototype.get())));
 467
 468             // Make sure that the constructor gets initialized, too.
 469             init.owner->m_typedArraySuperConstructor.get(init.owner);
 470         });
 471     m_typedArraySuperConstructor.initLater(
 472         [] (const Initializer<JSTypedArrayViewConstructor>& init) {
 473             JSTypedArrayViewPrototype* prototype = init.owner->m_typedArrayProto.get(init.owner);
 474             JSTypedArrayViewConstructor* constructor = JSTypedArrayViewConstructor::create(init.vm, init.owner, JSTypedArrayViewConstructor::createStructure(init.vm, init.owner, init.owner->m_functionPrototype.get()), prototype, init.owner->m_speciesGetterSetter.get());
 475             prototype->putDirectWithoutTransition(init.vm, init.vm.propertyNames->constructor, constructor, DontEnum);
 476             init.set(constructor);
 477         });
 478
 479 #define INIT_TYPED_ARRAY_LATER(type) \
 480     m_typedArray ## type.initLater( \
 481         [] (LazyClassStructure::Initializer& init) { \
 482             init.setPrototype(JS ## type ## ArrayPrototype::create(init.vm, init.global, JS ## type ## ArrayPrototype::createStructure(init.vm, init.global, init.global->m_typedArrayProto.get(init.global)))); \
 483             init.setStructure(JS ## type ## Array::createStructure(init.vm, init.global, init.prototype)); \
 484             init.setConstructor(JS ## type ## ArrayConstructor::create(init.vm, init.global, JS ## type ## ArrayConstructor::createStructure(init.vm, init.global, init.global->m_typedArraySuperConstructor.get(init.global)), init.prototype, ASCIILiteral(#type "Array"), typedArrayConstructorAllocate ## type ## ArrayCodeGenerator(init.vm))); \
 485             init.global->putDirectWithoutTransition(init.vm, init.vm.propertyNames->builtinNames().type ## ArrayPrivateName(), init.constructor, DontEnum); \
 486         });
 487     FOR_EACH_TYPED_ARRAY_TYPE_EXCLUDING_DATA_VIEW(INIT_TYPED_ARRAY_LATER)
 488 #undef INIT_TYPED_ARRAY_LATER
 489
 490     m_typedArrayDataView.initLater(
 491         [] (LazyClassStructure::Initializer& init) {
 492             init.setPrototype(JSDataViewPrototype::create(init.vm, JSDataViewPrototype::createStructure(init.vm, init.global, init.global->m_objectPrototype.get())));
 493             init.setStructure(JSDataView::createStructure(init.vm, init.global, init.prototype));
 494             init.setConstructor(JSDataViewConstructor::create(init.vm, init.global, JSDataViewConstructor::createStructure(init.vm, init.global, init.global->m_functionPrototype.get()), init.prototype, ASCIILiteral("DataView"), nullptr));
 495         });
 496
 497     m_lexicalEnvironmentStructure.set(vm, this, JSLexicalEnvironment::createStructure(vm, this));
 498     m_moduleEnvironmentStructure.initLater(
 499         [] (const Initializer<Structure>& init) {
 500             init.set(JSModuleEnvironment::createStructure(init.vm, init.owner));
 501         });
 502     m_strictEvalActivationStructure.set(vm, this, StrictEvalActivation::createStructure(vm, this, jsNull()));
 503     m_debuggerScopeStructure.initLater(
 504         [] (const Initializer<Structure>& init) {
 505             init.set(DebuggerScope::createStructure(init.vm, init.owner));
 506         });
 507     m_withScopeStructure.initLater(
 508         [] (const Initializer<Structure>& init) {
 509             init.set(JSWithScope::createStructure(init.vm, init.owner, jsNull()));
 510         });
 511
 512     m_nullPrototypeObjectStructure.initLater(
 513         [] (const Initializer<Structure>& init) {
 514             init.set(JSFinalObject::createStructure(init.vm, init.owner, jsNull(), JSFinalObject::defaultInlineCapacity()));
 515         });
 516
 517     m_callbackFunctionStructure.initLater(
 518         [] (const Initializer<Structure>& init) {
 519             init.set(JSCallbackFunction::createStructure(init.vm, init.owner, init.owner->m_functionPrototype.get()));
 520         });
 521     m_directArgumentsStructure.set(vm, this, DirectArguments::createStructure(vm, this, m_objectPrototype.get()));
 522     m_scopedArgumentsStructure.set(vm, this, ScopedArguments::createStructure(vm, this, m_objectPrototype.get()));
 523     m_clonedArgumentsStructure.set(vm, this, ClonedArguments::createStructure(vm, this, m_objectPrototype.get()));
 524     m_callbackConstructorStructure.initLater(
 525         [] (const Initializer<Structure>& init) {
 526             init.set(JSCallbackConstructor::createStructure(init.vm, init.owner, init.owner->m_objectPrototype.get()));
 527         });
 528     m_callbackObjectStructure.initLater(
 529         [] (const Initializer<Structure>& init) {
 530             init.set(JSCallbackObject<JSDestructibleObject>::createStructure(init.vm, init.owner, init.owner->m_objectPrototype.get()));
 531         });
 532
 533 #if JSC_OBJC_API_ENABLED
 534     m_objcCallbackFunctionStructure.initLater(
 535         [] (const Initializer<Structure>& init) {
 536             init.set(ObjCCallbackFunction::createStructure(init.vm, init.owner, init.owner->m_functionPrototype.get()));
 537         });
 538     m_objcWrapperObjectStructure.initLater(
 539         [] (const Initializer<Structure>& init) {
 540             init.set(JSCallbackObject<JSAPIWrapperObject>::createStructure(init.vm, init.owner, init.owner->m_objectPrototype.get()));
 541         });
 542 #endif
 543
 544     m_arrayPrototype.set(vm, this, ArrayPrototype::create(vm, this, ArrayPrototype::createStructure(vm, this, m_objectPrototype.get())));
 545
 546     m_originalArrayStructureForIndexingShape[UndecidedShape >> IndexingShapeShift].set(vm, this, JSArray::createStructure(vm, this, m_arrayPrototype.get(), ArrayWithUndecided));
 547     m_originalArrayStructureForIndexingShape[Int32Shape >> IndexingShapeShift].set(vm, this, JSArray::createStructure(vm, this, m_arrayPrototype.get(), ArrayWithInt32));
 548     m_originalArrayStructureForIndexingShape[DoubleShape >> IndexingShapeShift].set(vm, this, JSArray::createStructure(vm, this, m_arrayPrototype.get(), ArrayWithDouble));
 549     m_originalArrayStructureForIndexingShape[ContiguousShape >> IndexingShapeShift].set(vm, this, JSArray::createStructure(vm, this, m_arrayPrototype.get(), ArrayWithContiguous));
 550     m_originalArrayStructureForIndexingShape[ArrayStorageShape >> IndexingShapeShift].set(vm, this, JSArray::createStructure(vm, this, m_arrayPrototype.get(), ArrayWithArrayStorage));
 551     m_originalArrayStructureForIndexingShape[SlowPutArrayStorageShape >> IndexingShapeShift].set(vm, this, JSArray::createStructure(vm, this, m_arrayPrototype.get(), ArrayWithSlowPutArrayStorage));
 552     for (unsigned i = 0; i < NumberOfIndexingShapes; ++i)
 553         m_arrayStructureForIndexingShapeDuringAllocation[i] = m_originalArrayStructureForIndexingShape[i];
 554
 555     m_regExpPrototype.set(vm, this, RegExpPrototype::create(vm, this, RegExpPrototype::createStructure(vm, this, m_objectPrototype.get())));
 556     m_regExpStructure.set(vm, this, RegExpObject::createStructure(vm, this, m_regExpPrototype.get()));
 557     m_regExpMatchesArrayStructure.set(vm, this, createRegExpMatchesArrayStructure(vm, this));
 558
 559     m_moduleRecordStructure.set(vm, this, JSModuleRecord::createStructure(vm, this, m_objectPrototype.get()));
 560     m_moduleNamespaceObjectStructure.set(vm, this, JSModuleNamespaceObject::createStructure(vm, this, jsNull()));
 561     {
 562         bool isCallable = false;
 563         m_proxyObjectStructure.set(vm, this, ProxyObject::createStructure(vm, this, jsNull(), isCallable));
 564         isCallable = true;
 565         m_callableProxyObjectStructure.set(vm, this, ProxyObject::createStructure(vm, this, jsNull(), isCallable));
 566     }
 567     m_proxyRevokeStructure.set(vm, this, ProxyRevoke::createStructure(vm, this, m_functionPrototype.get()));
 568
 569     m_parseIntFunction.set(vm, this, JSFunction::create(vm, this, 2, vm.propertyNames->parseInt.string(), globalFuncParseInt, ParseIntIntrinsic));
 570     putDirectWithoutTransition(vm, vm.propertyNames->parseInt, m_parseIntFunction.get(), DontEnum);
 571
 572     m_arrayBufferPrototype.set(vm, this, JSArrayBufferPrototype::create(vm, this, JSArrayBufferPrototype::createStructure(vm, this, m_objectPrototype.get()), ArrayBufferSharingMode::Default));
 573     m_arrayBufferStructure.set(vm, this, JSArrayBuffer::createStructure(vm, this, m_arrayBufferPrototype.get()));
 574     m_sharedArrayBufferPrototype.set(vm, this, JSArrayBufferPrototype::create(vm, this, JSArrayBufferPrototype::createStructure(vm, this, m_objectPrototype.get()), ArrayBufferSharingMode::Shared));
 575     m_sharedArrayBufferStructure.set(vm, this, JSArrayBuffer::createStructure(vm, this, m_sharedArrayBufferPrototype.get()));
 576
 577 #define CREATE_PROTOTYPE_FOR_SIMPLE_TYPE(capitalName, lowerName, properName, instanceType, jsName, prototypeBase) \
 578 m_ ## lowerName ## Prototype.set(vm, this, capitalName##Prototype::create(vm, this, capitalName##Prototype::createStructure(vm, this, m_ ## prototypeBase ## Prototype.get()))); \
 579 m_ ## properName ## Structure.set(vm, this, instanceType::createStructure(vm, this, m_ ## lowerName ## Prototype.get()));
 580
 581     FOR_EACH_SIMPLE_BUILTIN_TYPE(CREATE_PROTOTYPE_FOR_SIMPLE_TYPE)
 582
 583 #undef CREATE_PROTOTYPE_FOR_SIMPLE_TYPE
 584
 585 #define CREATE_PROTOTYPE_FOR_LAZY_TYPE(capitalName, lowerName, properName, instanceType, jsName, prototypeBase) \
 586     m_ ## properName ## Structure.initLater(\
 587         [] (LazyClassStructure::Initializer& init) { \
 588             init.setPrototype(capitalName##Prototype::create(init.vm, init.global, capitalName##Prototype::createStructure(init.vm, init.global, init.global->m_ ## prototypeBase ## Prototype.get()))); \
 589             init.setStructure(instanceType::createStructure(init.vm, init.global, init.prototype)); \
 590             init.setConstructor(capitalName ## Constructor::create(init.vm, capitalName ## Constructor::createStructure(init.vm, init.global, init.global->m_functionPrototype.get()), jsCast<capitalName ## Prototype*>(init.prototype), init.global->m_speciesGetterSetter.get())); \
 591         });
 592
 593     FOR_EACH_LAZY_BUILTIN_TYPE(CREATE_PROTOTYPE_FOR_LAZY_TYPE)
 594
 595 #undef CREATE_PROTOTYPE_FOR_LAZY_TYPE
 596
 597     m_iteratorPrototype.set(vm, this, IteratorPrototype::create(vm, this, IteratorPrototype::createStructure(vm, this, m_objectPrototype.get())));
 598
 599 #define CREATE_PROTOTYPE_FOR_DERIVED_ITERATOR_TYPE(capitalName, lowerName, properName, instanceType, jsName, prototypeBase) \
 600     m_ ## lowerName ## Structure.initLater( \
 601         [] (const Initializer<Structure>& init) { \
 602             JSObject* prototype = capitalName ## Prototype::create(init.vm, init.owner, capitalName ## Prototype::createStructure(init.vm, init.owner, init.owner->m_iteratorPrototype.get())); \
 603             init.set(instanceType::createStructure(init.vm, init.owner, prototype)); \
 604         });
 605     FOR_EACH_BUILTIN_DERIVED_ITERATOR_TYPE(CREATE_PROTOTYPE_FOR_DERIVED_ITERATOR_TYPE)
 606 #undef CREATE_PROTOTYPE_FOR_DERIVED_ITERATOR_TYPE
 607
 608     m_propertyNameIteratorStructure.set(vm, this, JSPropertyNameIterator::createStructure(vm, this, m_iteratorPrototype.get()));
 609     m_generatorPrototype.set(vm, this, GeneratorPrototype::create(vm, this, GeneratorPrototype::createStructure(vm, this, m_iteratorPrototype.get())));
 610     m_moduleLoaderPrototype.set(vm, this, ModuleLoaderPrototype::create(vm, this, ModuleLoaderPrototype::createStructure(vm, this, m_objectPrototype.get())));
 611
 612     // Constructors
 613
 614     ObjectConstructor* objectConstructor = ObjectConstructor::create(vm, this, ObjectConstructor::createStructure(vm, this, m_functionPrototype.get()), m_objectPrototype.get());
 615     m_objectConstructor.set(vm, this, objectConstructor);
 616
 617     JSFunction* throwTypeErrorFunction = JSFunction::create(vm, this, 0, String(), globalFuncThrowTypeError);
 618     m_throwTypeErrorFunction.set(vm, this, throwTypeErrorFunction);
 619
 620     JSCell* functionConstructor = FunctionConstructor::create(vm, FunctionConstructor::createStructure(vm, this, m_functionPrototype.get()), m_functionPrototype.get());
 621
 622     ArrayConstructor* arrayConstructor = ArrayConstructor::create(vm, this, ArrayConstructor::createStructure(vm, this, m_functionPrototype.get()), m_arrayPrototype.get(), m_speciesGetterSetter.get());
 623     m_arrayConstructor.set(vm, this, arrayConstructor);
 624
 625     m_regExpConstructor.set(vm, this, RegExpConstructor::create(vm, RegExpConstructor::createStructure(vm, this, m_functionPrototype.get()), m_regExpPrototype.get(), m_speciesGetterSetter.get()));
 626
 627     JSArrayBufferConstructor* arrayBufferConstructor = JSArrayBufferConstructor::create(vm, JSArrayBufferConstructor::createStructure(vm, this, m_functionPrototype.get()), m_arrayBufferPrototype.get(), m_speciesGetterSetter.get(), ArrayBufferSharingMode::Default);
 628     m_arrayBufferPrototype->putDirectWithoutTransition(vm, vm.propertyNames->constructor, arrayBufferConstructor, DontEnum);
 629     JSArrayBufferConstructor* sharedArrayBufferConstructor = nullptr;
 630     sharedArrayBufferConstructor = JSArrayBufferConstructor::create(vm, JSArrayBufferConstructor::createStructure(vm, this, m_functionPrototype.get()), m_sharedArrayBufferPrototype.get(), m_speciesGetterSetter.get(), ArrayBufferSharingMode::Shared);
 631     m_sharedArrayBufferPrototype->putDirectWithoutTransition(vm, vm.propertyNames->constructor, sharedArrayBufferConstructor, DontEnum);
 632
 633 #define CREATE_CONSTRUCTOR_FOR_SIMPLE_TYPE(capitalName, lowerName, properName, instanceType, jsName, prototypeBase) \
 634 capitalName ## Constructor* lowerName ## Constructor = capitalName ## Constructor::create(vm, capitalName ## Constructor::createStructure(vm, this, m_functionPrototype.get()), m_ ## lowerName ## Prototype.get(), m_speciesGetterSetter.get()); \
 635 m_ ## lowerName ## Prototype->putDirectWithoutTransition(vm, vm.propertyNames->constructor, lowerName ## Constructor, DontEnum); \
 636
 637     FOR_EACH_SIMPLE_BUILTIN_TYPE(CREATE_CONSTRUCTOR_FOR_SIMPLE_TYPE)
 638
 639 #undef CREATE_CONSTRUCTOR_FOR_SIMPLE_TYPE
 640
 641     m_errorConstructor.set(vm, this, errorConstructor);
 642     m_promiseConstructor.set(vm, this, promiseConstructor);
 643     m_internalPromiseConstructor.set(vm, this, internalPromiseConstructor);
 644
 645     m_nativeErrorPrototypeStructure.set(vm, this, NativeErrorPrototype::createStructure(vm, this, m_errorPrototype.get()));
 646     m_nativeErrorStructure.set(vm, this, NativeErrorConstructor::createStructure(vm, this, m_functionPrototype.get()));
 647     m_evalErrorConstructor.initLater(
 648         [] (const Initializer<NativeErrorConstructor>& init) {
 649             init.set(NativeErrorConstructor::create(init.vm, init.owner, init.owner->m_nativeErrorStructure.get(), init.owner->m_nativeErrorPrototypeStructure.get(), ASCIILiteral("EvalError")));
 650         });
 651     m_rangeErrorConstructor.set(vm, this, NativeErrorConstructor::create(vm, this, m_nativeErrorStructure.get(), m_nativeErrorPrototypeStructure.get(), ASCIILiteral("RangeError")));
 652     m_referenceErrorConstructor.initLater(
 653         [] (const Initializer<NativeErrorConstructor>& init) {
 654             init.set(NativeErrorConstructor::create(init.vm, init.owner, init.owner->m_nativeErrorStructure.get(), init.owner->m_nativeErrorPrototypeStructure.get(), ASCIILiteral("ReferenceError")));
 655         });
 656     m_syntaxErrorConstructor.initLater(
 657         [] (const Initializer<NativeErrorConstructor>& init) {
 658             init.set(NativeErrorConstructor::create(init.vm, init.owner, init.owner->m_nativeErrorStructure.get(), init.owner->m_nativeErrorPrototypeStructure.get(), ASCIILiteral("SyntaxError")));
 659         });
 660     m_typeErrorConstructor.set(vm, this, NativeErrorConstructor::create(vm, this, m_nativeErrorStructure.get(), m_nativeErrorPrototypeStructure.get(), ASCIILiteral("TypeError")));
 661     m_URIErrorConstructor.initLater(
 662         [] (const Initializer<NativeErrorConstructor>& init) {
 663             init.set(NativeErrorConstructor::create(init.vm, init.owner, init.owner->m_nativeErrorStructure.get(), init.owner->m_nativeErrorPrototypeStructure.get(), ASCIILiteral("URIError")));
 664         });
 665
 666     m_generatorFunctionPrototype.set(vm, this, GeneratorFunctionPrototype::create(vm, GeneratorFunctionPrototype::createStructure(vm, this, m_functionPrototype.get())));
 667     GeneratorFunctionConstructor* generatorFunctionConstructor = GeneratorFunctionConstructor::create(vm, GeneratorFunctionConstructor::createStructure(vm, this, functionConstructor), m_generatorFunctionPrototype.get());
 668     m_generatorFunctionPrototype->putDirectWithoutTransition(vm, vm.propertyNames->constructor, generatorFunctionConstructor, DontEnum | ReadOnly);
 669     m_generatorFunctionStructure.set(vm, this, JSGeneratorFunction::createStructure(vm, this, m_generatorFunctionPrototype.get()));
 670
 671     m_generatorPrototype->putDirectWithoutTransition(vm, vm.propertyNames->constructor, m_generatorFunctionPrototype.get(), DontEnum | ReadOnly);
 672     m_generatorFunctionPrototype->putDirectWithoutTransition(vm, vm.propertyNames->prototype, m_generatorPrototype.get(), DontEnum | ReadOnly);
 673
 674     m_asyncFunctionPrototype.set(vm, this, AsyncFunctionPrototype::create(vm, AsyncFunctionPrototype::createStructure(vm, this, m_functionPrototype.get())));
 675     AsyncFunctionConstructor* asyncFunctionConstructor = AsyncFunctionConstructor::create(vm, AsyncFunctionConstructor::createStructure(vm, this, functionConstructor), m_asyncFunctionPrototype.get());
 676     m_asyncFunctionPrototype->putDirectWithoutTransition(vm, vm.propertyNames->constructor, asyncFunctionConstructor, DontEnum | ReadOnly);
 677     m_asyncFunctionStructure.set(vm, this, JSAsyncFunction::createStructure(vm, this, m_asyncFunctionPrototype.get()));
 678
 679     m_objectPrototype->putDirectWithoutTransition(vm, vm.propertyNames->constructor, objectConstructor, DontEnum);
 680     m_functionPrototype->putDirectWithoutTransition(vm, vm.propertyNames->constructor, functionConstructor, DontEnum);
 681     m_arrayPrototype->putDirectWithoutTransition(vm, vm.propertyNames->constructor, arrayConstructor, DontEnum);
 682     m_regExpPrototype->putDirectWithoutTransition(vm, vm.propertyNames->constructor, m_regExpConstructor.get(), DontEnum);
 683
 684     putDirectWithoutTransition(vm, vm.propertyNames->Object, objectConstructor, DontEnum);
 685     putDirectWithoutTransition(vm, vm.propertyNames->Function, functionConstructor, DontEnum);
 686     putDirectWithoutTransition(vm, vm.propertyNames->Array, arrayConstructor, DontEnum);
 687     putDirectWithoutTransition(vm, vm.propertyNames->RegExp, m_regExpConstructor.get(), DontEnum);
 688     putDirectWithoutTransition(vm, vm.propertyNames->RangeError, m_rangeErrorConstructor.get(), DontEnum);
 689     putDirectWithoutTransition(vm, vm.propertyNames->TypeError, m_typeErrorConstructor.get(), DontEnum);
 690
 691     putDirectWithoutTransition(vm, vm.propertyNames->builtinNames().ObjectPrivateName(), objectConstructor, DontEnum | DontDelete | ReadOnly);
 692     putDirectWithoutTransition(vm, vm.propertyNames->builtinNames().ArrayPrivateName(), arrayConstructor, DontEnum | DontDelete | ReadOnly);
 693
 694     putDirectWithoutTransition(vm, vm.propertyNames->ArrayBuffer, arrayBufferConstructor, DontEnum);
 695     putDirectWithoutTransition(vm, vm.propertyNames->SharedArrayBuffer, sharedArrayBufferConstructor, DontEnum);
 696
 697 #define PUT_CONSTRUCTOR_FOR_SIMPLE_TYPE(capitalName, lowerName, properName, instanceType, jsName, prototypeBase) \
 698 putDirectWithoutTransition(vm, vm.propertyNames-> jsName, lowerName ## Constructor, DontEnum); \
 699
 700     FOR_EACH_SIMPLE_BUILTIN_TYPE_WITH_CONSTRUCTOR(PUT_CONSTRUCTOR_FOR_SIMPLE_TYPE)
 701
 702 #undef PUT_CONSTRUCTOR_FOR_SIMPLE_TYPE
 703     m_iteratorResultObjectStructure.set(vm, this, createIteratorResultObjectStructure(vm, *this));
 704
 705     m_evalFunction.set(vm, this, JSFunction::create(vm, this, 1, vm.propertyNames->eval.string(), globalFuncEval));
 706     putDirectWithoutTransition(vm, vm.propertyNames->eval, m_evalFunction.get(), DontEnum);
 707
 708 #if ENABLE(INTL)
 709     IntlObject* intl = IntlObject::create(vm, this, IntlObject::createStructure(vm, this, m_objectPrototype.get()));
 710     putDirectWithoutTransition(vm, vm.propertyNames->Intl, intl, DontEnum);
 711 #endif // ENABLE(INTL)
 712     ReflectObject* reflectObject = ReflectObject::create(vm, this, ReflectObject::createStructure(vm, this, m_objectPrototype.get()));
 713     putDirectWithoutTransition(vm, vm.propertyNames->Reflect, reflectObject, DontEnum);
 714
 715     m_moduleLoaderStructure.set(vm, this, JSModuleLoader::createStructure(vm, this, m_moduleLoaderPrototype.get()));
 716     m_moduleLoader.set(vm, this, JSModuleLoader::create(globalExec(), vm, this, m_moduleLoaderStructure.get()));
 717     if (Options::exposeInternalModuleLoader())
 718         putDirectWithoutTransition(vm, vm.propertyNames->Loader, m_moduleLoader.get(), DontEnum);
 719
 720     JSFunction* builtinLog = JSFunction::create(vm, this, 1, vm.propertyNames->emptyIdentifier.string(), globalFuncBuiltinLog);
 721
 722     JSFunction* privateFuncAbs = JSFunction::create(vm, this, 0, String(), mathProtoFuncAbs, AbsIntrinsic);
 723     JSFunction* privateFuncFloor = JSFunction::create(vm, this, 0, String(), mathProtoFuncFloor, FloorIntrinsic);
 724     JSFunction* privateFuncTrunc = JSFunction::create(vm, this, 0, String(), mathProtoFuncTrunc, TruncIntrinsic);
 725
 726     JSFunction* privateFuncImportModule = JSFunction::create(vm, this, 0, String(), globalFuncImportModule);
 727     JSFunction* privateFuncTypedArrayLength = JSFunction::create(vm, this, 0, String(), typedArrayViewPrivateFuncLength);
 728     JSFunction* privateFuncTypedArrayGetOriginalConstructor = JSFunction::create(vm, this, 0, String(), typedArrayViewPrivateFuncGetOriginalConstructor);
 729     JSFunction* privateFuncTypedArraySort = JSFunction::create(vm, this, 0, String(), typedArrayViewPrivateFuncSort);
 730     JSFunction* privateFuncIsTypedArrayView = JSFunction::create(vm, this, 0, String(), typedArrayViewPrivateFuncIsTypedArrayView, IsTypedArrayViewIntrinsic);
 731     JSFunction* privateFuncTypedArraySubarrayCreate = JSFunction::create(vm, this, 0, String(), typedArrayViewPrivateFuncSubarrayCreate);
 732     JSFunction* privateFuncIsBoundFunction = JSFunction::create(vm, this, 0, String(), isBoundFunction);
 733     JSFunction* privateFuncHasInstanceBoundFunction = JSFunction::create(vm, this, 0, String(), hasInstanceBoundFunction);
 734     JSFunction* privateFuncInstanceOf = JSFunction::create(vm, this, 0, String(), objectPrivateFuncInstanceOf);
 735     JSFunction* privateFuncThisTimeValue = JSFunction::create(vm, this, 0, String(), dateProtoFuncGetTime);
 736     JSFunction* privateFuncThisNumberValue = JSFunction::create(vm, this, 0, String(), numberProtoFuncValueOf);
 737     JSFunction* privateFuncIsArrayConstructor = JSFunction::create(vm, this, 0, String(), arrayConstructorPrivateFuncIsArrayConstructor);
 738     JSFunction* privateFuncIsArraySlow = JSFunction::create(vm, this, 0, String(), arrayConstructorPrivateFuncIsArraySlow);
 739     JSFunction* privateFuncConcatMemcpy = JSFunction::create(vm, this, 0, String(), arrayProtoPrivateFuncConcatMemcpy);
 740     JSFunction* privateFuncAppendMemcpy = JSFunction::create(vm, this, 0, String(), arrayProtoPrivateFuncAppendMemcpy);
 741     JSFunction* privateFuncConcatSlowPath = JSFunction::createBuiltinFunction(vm, arrayPrototypeConcatSlowPathCodeGenerator(vm), this);
 742
 743     JSObject* regExpProtoFlagsGetterObject = getGetterById(exec, m_regExpPrototype.get(), vm.propertyNames->flags);
 744     ASSERT_UNUSED(catchScope, !catchScope.exception());
 745     JSObject* regExpProtoGlobalGetterObject = getGetterById(exec, m_regExpPrototype.get(), vm.propertyNames->global);
 746     ASSERT(!catchScope.exception());
 747     m_regExpProtoGlobalGetter.set(vm, this, regExpProtoGlobalGetterObject);
 748     JSObject* regExpProtoIgnoreCaseGetterObject = getGetterById(exec, m_regExpPrototype.get(), vm.propertyNames->ignoreCase);
 749     ASSERT(!catchScope.exception());
 750     JSObject* regExpProtoMultilineGetterObject = getGetterById(exec, m_regExpPrototype.get(), vm.propertyNames->multiline);
 751     ASSERT(!catchScope.exception());
 752     JSObject* regExpProtoSourceGetterObject = getGetterById(exec, m_regExpPrototype.get(), vm.propertyNames->source);
 753     ASSERT(!catchScope.exception());
 754     JSObject* regExpProtoStickyGetterObject = getGetterById(exec, m_regExpPrototype.get(), vm.propertyNames->sticky);
 755     ASSERT(!catchScope.exception());
 756     JSObject* regExpProtoUnicodeGetterObject = getGetterById(exec, m_regExpPrototype.get(), vm.propertyNames->unicode);
 757     ASSERT(!catchScope.exception());
 758     m_regExpProtoUnicodeGetter.set(vm, this, regExpProtoUnicodeGetterObject);
 759     JSObject* builtinRegExpExec = asObject(m_regExpPrototype->getDirect(vm, vm.propertyNames->exec).asCell());
 760     m_regExpProtoExec.set(vm, this, builtinRegExpExec);
 761     JSObject* regExpSymbolReplace = asObject(m_regExpPrototype->getDirect(vm, vm.propertyNames->replaceSymbol).asCell());
 762     m_regExpProtoSymbolReplace.set(vm, this, regExpSymbolReplace);
 763
 764 #define CREATE_PRIVATE_GLOBAL_FUNCTION(name, code) JSFunction* name ## PrivateFunction = JSFunction::createBuiltinFunction(vm, code ## CodeGenerator(vm), this);
 765     JSC_FOREACH_BUILTIN_FUNCTION_PRIVATE_GLOBAL_NAME(CREATE_PRIVATE_GLOBAL_FUNCTION)
 766 #undef CREATE_PRIVATE_GLOBAL_FUNCTION
 767
 768     JSObject* arrayIteratorPrototype = ArrayIteratorPrototype::create(vm, this, ArrayIteratorPrototype::createStructure(vm, this, m_iteratorPrototype.get()));
 769     createArrayIteratorPrivateFunction->putDirect(vm, vm.propertyNames->prototype, arrayIteratorPrototype);
 770
 771     GlobalPropertyInfo staticGlobals[] = {
 772 #define INIT_PRIVATE_GLOBAL(name, code) GlobalPropertyInfo(vm.propertyNames->builtinNames().name ## PrivateName(), name ## PrivateFunction, DontEnum | DontDelete | ReadOnly),
 773         JSC_FOREACH_BUILTIN_FUNCTION_PRIVATE_GLOBAL_NAME(INIT_PRIVATE_GLOBAL)
 774 #undef INIT_PRIVATE_GLOBAL
 775         GlobalPropertyInfo(vm.propertyNames->NaN, jsNaN(), DontEnum | DontDelete | ReadOnly),
 776         GlobalPropertyInfo(vm.propertyNames->Infinity, jsNumber(std::numeric_limits<double>::infinity()), DontEnum | DontDelete | ReadOnly),
 777         GlobalPropertyInfo(vm.propertyNames->undefinedKeyword, jsUndefined(), DontEnum | DontDelete | ReadOnly),
 778         GlobalPropertyInfo(vm.propertyNames->builtinNames().ownEnumerablePropertyKeysPrivateName(), JSFunction::create(vm, this, 0, String(), ownEnumerablePropertyKeys), DontEnum | DontDelete | ReadOnly),
 779         GlobalPropertyInfo(vm.propertyNames->builtinNames().importModulePrivateName(), privateFuncImportModule, DontEnum | DontDelete | ReadOnly),
 780         GlobalPropertyInfo(vm.propertyNames->builtinNames().enqueueJobPrivateName(), JSFunction::create(vm, this, 0, String(), enqueueJob), DontEnum | DontDelete | ReadOnly),
 781         GlobalPropertyInfo(vm.propertyNames->builtinNames().ErrorPrivateName(), m_errorConstructor.get(), DontEnum | DontDelete | ReadOnly),
 782         GlobalPropertyInfo(vm.propertyNames->builtinNames().RangeErrorPrivateName(), m_rangeErrorConstructor.get(), DontEnum | DontDelete | ReadOnly),
 783         GlobalPropertyInfo(vm.propertyNames->builtinNames().TypeErrorPrivateName(), m_typeErrorConstructor.get(), DontEnum | DontDelete | ReadOnly),
 784         GlobalPropertyInfo(vm.propertyNames->builtinNames().typedArrayLengthPrivateName(), privateFuncTypedArrayLength, DontEnum | DontDelete | ReadOnly),
 785         GlobalPropertyInfo(vm.propertyNames->builtinNames().typedArrayGetOriginalConstructorPrivateName(), privateFuncTypedArrayGetOriginalConstructor, DontEnum | DontDelete | ReadOnly),
 786         GlobalPropertyInfo(vm.propertyNames->builtinNames().typedArraySortPrivateName(), privateFuncTypedArraySort, DontEnum | DontDelete | ReadOnly),
 787         GlobalPropertyInfo(vm.propertyNames->builtinNames().isTypedArrayViewPrivateName(), privateFuncIsTypedArrayView, DontEnum | DontDelete | ReadOnly),
 788         GlobalPropertyInfo(vm.propertyNames->builtinNames().typedArraySubarrayCreatePrivateName(), privateFuncTypedArraySubarrayCreate, DontEnum | DontDelete | ReadOnly),
 789         GlobalPropertyInfo(vm.propertyNames->builtinNames().isBoundFunctionPrivateName(), privateFuncIsBoundFunction, DontEnum | DontDelete | ReadOnly),
 790         GlobalPropertyInfo(vm.propertyNames->builtinNames().hasInstanceBoundFunctionPrivateName(), privateFuncHasInstanceBoundFunction, DontEnum | DontDelete | ReadOnly),
 791         GlobalPropertyInfo(vm.propertyNames->builtinNames().instanceOfPrivateName(), privateFuncInstanceOf, DontEnum | DontDelete | ReadOnly),
 792         GlobalPropertyInfo(vm.propertyNames->builtinNames().BuiltinLogPrivateName(), builtinLog, DontEnum | DontDelete | ReadOnly),
 793         GlobalPropertyInfo(vm.propertyNames->builtinNames().NumberPrivateName(), numberConstructor, DontEnum | DontDelete | ReadOnly),
 794         GlobalPropertyInfo(vm.propertyNames->builtinNames().RegExpPrivateName(), m_regExpConstructor.get(), DontEnum | DontDelete | ReadOnly),
 795         GlobalPropertyInfo(vm.propertyNames->builtinNames().StringPrivateName(), stringConstructor, DontEnum | DontDelete | ReadOnly),
 796         GlobalPropertyInfo(vm.propertyNames->builtinNames().absPrivateName(), privateFuncAbs, DontEnum | DontDelete | ReadOnly),
 797         GlobalPropertyInfo(vm.propertyNames->builtinNames().floorPrivateName(), privateFuncFloor, DontEnum | DontDelete | ReadOnly),
 798         GlobalPropertyInfo(vm.propertyNames->builtinNames().truncPrivateName(), privateFuncTrunc, DontEnum | DontDelete | ReadOnly),
 799         GlobalPropertyInfo(vm.propertyNames->builtinNames().PromisePrivateName(), promiseConstructor, DontEnum | DontDelete | ReadOnly),
 800         GlobalPropertyInfo(vm.propertyNames->builtinNames().ReflectPrivateName(), reflectObject, DontEnum | DontDelete | ReadOnly),
 801         GlobalPropertyInfo(vm.propertyNames->builtinNames().InternalPromisePrivateName(), internalPromiseConstructor, DontEnum | DontDelete | ReadOnly),
 802
 803         GlobalPropertyInfo(vm.propertyNames->builtinNames().repeatCharacterPrivateName(), JSFunction::create(vm, this, 2, String(), stringProtoFuncRepeatCharacter), DontEnum | DontDelete | ReadOnly),
 804         GlobalPropertyInfo(vm.propertyNames->builtinNames().SetIteratorPrivateName(), JSFunction::create(vm, this, 1, String(), privateFuncSetIterator), DontEnum | DontDelete | ReadOnly),
 805         GlobalPropertyInfo(vm.propertyNames->builtinNames().setIteratorNextPrivateName(), JSFunction::create(vm, this, 0, String(), privateFuncSetIteratorNext), DontEnum | DontDelete | ReadOnly),
 806         GlobalPropertyInfo(vm.propertyNames->builtinNames().isArrayPrivateName(), arrayConstructor->getDirect(vm, vm.propertyNames->isArray), DontEnum | DontDelete | ReadOnly),
 807         GlobalPropertyInfo(vm.propertyNames->builtinNames().isArraySlowPrivateName(), privateFuncIsArraySlow, DontEnum | DontDelete | ReadOnly),
 808         GlobalPropertyInfo(vm.propertyNames->builtinNames().isArrayConstructorPrivateName(), privateFuncIsArrayConstructor, DontEnum | DontDelete | ReadOnly),
 809         GlobalPropertyInfo(vm.propertyNames->builtinNames().concatMemcpyPrivateName(), privateFuncConcatMemcpy, DontEnum | DontDelete | ReadOnly),
 810         GlobalPropertyInfo(vm.propertyNames->builtinNames().appendMemcpyPrivateName(), privateFuncAppendMemcpy, DontEnum | DontDelete | ReadOnly),
 811         GlobalPropertyInfo(vm.propertyNames->builtinNames().concatSlowPathPrivateName(), privateFuncConcatSlowPath, DontEnum | DontDelete | ReadOnly),
 812         GlobalPropertyInfo(vm.propertyNames->builtinNames().MapIteratorPrivateName(), JSFunction::create(vm, this, 1, String(), privateFuncMapIterator), DontEnum | DontDelete | ReadOnly),
 813         GlobalPropertyInfo(vm.propertyNames->builtinNames().mapIteratorNextPrivateName(), JSFunction::create(vm, this, 0, String(), privateFuncMapIteratorNext), DontEnum | DontDelete | ReadOnly),
 814
 815         GlobalPropertyInfo(vm.propertyNames->builtinNames().InspectorInstrumentationPrivateName(), InspectorInstrumentationObject::create(vm, this, InspectorInstrumentationObject::createStructure(vm, this, m_objectPrototype.get())), DontEnum | DontDelete | ReadOnly),
 816         GlobalPropertyInfo(vm.propertyNames->builtinNames().MapPrivateName(), mapConstructor, DontEnum | DontDelete | ReadOnly),
 817         GlobalPropertyInfo(vm.propertyNames->builtinNames().thisTimeValuePrivateName(), privateFuncThisTimeValue, DontEnum | DontDelete | ReadOnly),
 818         GlobalPropertyInfo(vm.propertyNames->builtinNames().thisNumberValuePrivateName(), privateFuncThisNumberValue, DontEnum | DontDelete | ReadOnly),
 819 #if ENABLE(INTL)
 820         GlobalPropertyInfo(vm.propertyNames->builtinNames().CollatorPrivateName(), intl->getDirect(vm, vm.propertyNames->Collator), DontEnum | DontDelete | ReadOnly),
 821         GlobalPropertyInfo(vm.propertyNames->builtinNames().DateTimeFormatPrivateName(), intl->getDirect(vm, vm.propertyNames->DateTimeFormat), DontEnum | DontDelete | ReadOnly),
 822         GlobalPropertyInfo(vm.propertyNames->builtinNames().NumberFormatPrivateName(), intl->getDirect(vm, vm.propertyNames->NumberFormat), DontEnum | DontDelete | ReadOnly),
 823 #endif // ENABLE(INTL)
 824
 825         GlobalPropertyInfo(vm.propertyNames->builtinNames().isConstructorPrivateName(), JSFunction::create(vm, this, 1, String(), esSpecIsConstructor, NoIntrinsic), DontEnum | DontDelete | ReadOnly),
 826
 827         GlobalPropertyInfo(vm.propertyNames->builtinNames().regExpProtoFlagsGetterPrivateName(), regExpProtoFlagsGetterObject, DontEnum | DontDelete | ReadOnly),
 828         GlobalPropertyInfo(vm.propertyNames->builtinNames().regExpProtoGlobalGetterPrivateName(), regExpProtoGlobalGetterObject, DontEnum | DontDelete | ReadOnly),
 829         GlobalPropertyInfo(vm.propertyNames->builtinNames().regExpProtoIgnoreCaseGetterPrivateName(), regExpProtoIgnoreCaseGetterObject, DontEnum | DontDelete | ReadOnly),
 830         GlobalPropertyInfo(vm.propertyNames->builtinNames().regExpProtoMultilineGetterPrivateName(), regExpProtoMultilineGetterObject, DontEnum | DontDelete | ReadOnly),
 831         GlobalPropertyInfo(vm.propertyNames->builtinNames().regExpProtoSourceGetterPrivateName(), regExpProtoSourceGetterObject, DontEnum | DontDelete | ReadOnly),
 832         GlobalPropertyInfo(vm.propertyNames->builtinNames().regExpProtoStickyGetterPrivateName(), regExpProtoStickyGetterObject, DontEnum | DontDelete | ReadOnly),
 833         GlobalPropertyInfo(vm.propertyNames->builtinNames().regExpProtoUnicodeGetterPrivateName(), regExpProtoUnicodeGetterObject, DontEnum | DontDelete | ReadOnly),
 834
 835         // RegExp.prototype helpers.
 836         GlobalPropertyInfo(vm.propertyNames->builtinNames().regExpBuiltinExecPrivateName(), builtinRegExpExec, DontEnum | DontDelete | ReadOnly),
 837         GlobalPropertyInfo(vm.propertyNames->builtinNames().regExpCreatePrivateName(), JSFunction::create(vm, this, 2, String(), esSpecRegExpCreate, NoIntrinsic), DontEnum | DontDelete | ReadOnly),
 838         GlobalPropertyInfo(vm.propertyNames->builtinNames().regExpMatchFastPrivateName(), JSFunction::create(vm, this, 1, String(), regExpProtoFuncMatchFast), DontEnum | DontDelete | ReadOnly),
 839         GlobalPropertyInfo(vm.propertyNames->builtinNames().regExpSearchFastPrivateName(), JSFunction::create(vm, this, 1, String(), regExpProtoFuncSearchFast), DontEnum | DontDelete | ReadOnly),
 840         GlobalPropertyInfo(vm.propertyNames->builtinNames().regExpSplitFastPrivateName(), JSFunction::create(vm, this, 2, String(), regExpProtoFuncSplitFast), DontEnum | DontDelete | ReadOnly),
 841         GlobalPropertyInfo(vm.propertyNames->builtinNames().regExpPrototypeSymbolReplacePrivateName(), m_regExpPrototype->getDirect(vm, vm.propertyNames->replaceSymbol), DontEnum | DontDelete | ReadOnly),
 842         GlobalPropertyInfo(vm.propertyNames->builtinNames().regExpTestFastPrivateName(), JSFunction::create(vm, this, 1, String(), regExpProtoFuncTestFast, RegExpTestFastIntrinsic), DontEnum | DontDelete | ReadOnly),
 843
 844         // String.prototype helpers.
 845         GlobalPropertyInfo(vm.propertyNames->builtinNames().stringIncludesInternalPrivateName(), JSFunction::create(vm, this, 1, String(), builtinStringIncludesInternal), DontEnum | DontDelete | ReadOnly),
 846         GlobalPropertyInfo(vm.propertyNames->builtinNames().stringSplitFastPrivateName(), JSFunction::create(vm, this, 2, String(), stringProtoFuncSplitFast), DontEnum | DontDelete | ReadOnly),
 847         GlobalPropertyInfo(vm.propertyNames->builtinNames().stringSubstrInternalPrivateName(), JSFunction::create(vm, this, 2, String(), builtinStringSubstrInternal), DontEnum | DontDelete | ReadOnly),
 848
 849         // Function prototype helpers.
 850         GlobalPropertyInfo(vm.propertyNames->builtinNames().makeBoundFunctionPrivateName(), JSFunction::create(vm, this, 5, String(), makeBoundFunction), DontEnum | DontDelete | ReadOnly),
 851         GlobalPropertyInfo(vm.propertyNames->builtinNames().hasOwnLengthPropertyPrivateName(), JSFunction::create(vm, this, 1, String(), hasOwnLengthProperty), DontEnum | DontDelete | ReadOnly),
 852     };
 853     addStaticGlobals(staticGlobals, WTF_ARRAY_LENGTH(staticGlobals));
 854
 855     m_specialPointers[Special::CallFunction] = m_callFunction.get();
 856     m_specialPointers[Special::ApplyFunction] = m_applyFunction.get();
 857     m_specialPointers[Special::ObjectConstructor] = objectConstructor;
 858     m_specialPointers[Special::ArrayConstructor] = arrayConstructor;
 859
 860     m_linkTimeConstants[static_cast<unsigned>(LinkTimeConstant::ThrowTypeErrorFunction)] = m_throwTypeErrorFunction.get();
 861
 862     if (UNLIKELY(Options::useDollarVM())) {
 863         JSDollarVMPrototype* dollarVMPrototype = JSDollarVMPrototype::create(vm, this, JSDollarVMPrototype::createStructure(vm, this, m_objectPrototype.get()));
 864         m_dollarVMStructure.set(vm, this, JSDollarVM::createStructure(vm, this, dollarVMPrototype));
 865         JSDollarVM* dollarVM = JSDollarVM::create(vm, m_dollarVMStructure.get());
 866
 867         GlobalPropertyInfo extraStaticGlobals[] = {
 868             GlobalPropertyInfo(vm.propertyNames->builtinNames().dollarVMPrivateName(), dollarVM, DontEnum | DontDelete | ReadOnly),
 869         };
 870         addStaticGlobals(extraStaticGlobals, WTF_ARRAY_LENGTH(extraStaticGlobals));
 871
 872         putDirectWithoutTransition(vm, Identifier::fromString(exec, "$vm"), dollarVM, DontEnum);
 873     }
 874
 875 #if ENABLE(WEBASSEMBLY)
 876     if (Options::useWebAssembly()) {
 877         auto* webAssemblyPrototype = WebAssemblyPrototype::create(vm, this, WebAssemblyPrototype::createStructure(vm, this, m_objectPrototype.get()));
 878         m_webAssemblyStructure.set(vm, this, JSWebAssembly::createStructure(vm, this, webAssemblyPrototype));
 879         m_webAssemblyModuleRecordStructure.set(vm, this, WebAssemblyModuleRecord::createStructure(vm, this, m_objectPrototype.get()));
 880         m_webAssemblyFunctionStructure.set(vm, this, WebAssemblyFunction::createStructure(vm, this, m_functionPrototype.get()));
 881         m_webAssemblyWrapperFunctionStructure.set(vm, this, WebAssemblyWrapperFunction::createStructure(vm, this, m_functionPrototype.get()));
 882         auto* webAssembly = JSWebAssembly::create(vm, this, m_webAssemblyStructure.get());
 883         putDirectWithoutTransition(vm, Identifier::fromString(exec, "WebAssembly"), webAssembly, DontEnum);
 884
 885 #define CREATE_WEBASSEMBLY_CONSTRUCTOR(capitalName, lowerName, properName, instanceType, jsName, prototypeBase) do { \
 886         typedef capitalName ## Prototype Prototype; \
 887         typedef capitalName ## Constructor Constructor; \
 888         typedef JS ## capitalName JSObj; \
 889         auto* base = m_ ## prototypeBase ## Prototype.get(); \
 890         auto* prototype = Prototype::create(vm, this, Prototype::createStructure(vm, this, base)); \
 891         auto* structure = JSObj::createStructure(vm, this, prototype); \
 892         auto* constructor = Constructor::create(vm, Constructor::createStructure(vm, this, this->functionPrototype()), prototype); \
 893         prototype->putDirectWithoutTransition(vm, vm.propertyNames->constructor, constructor, DontEnum); \
 894         m_ ## lowerName ## Prototype.set(vm, this, prototype); \
 895         m_ ## properName ## Structure.set(vm, this, structure); \
 896         webAssembly->putDirectWithoutTransition(vm, Identifier::fromString(this->globalExec(), #jsName), constructor, DontEnum); \
 897     } while (0);
 898
 899         FOR_EACH_WEBASSEMBLY_CONSTRUCTOR_TYPE(CREATE_WEBASSEMBLY_CONSTRUCTOR)
 900
 901 #undef CREATE_WEBASSEMBLY_CONSTRUCTOR
 902     }
 903 #endif // ENABLE(WEBASSEMBLY)
 904
 905     {
 906         ExecState* exec = globalExec();
 907
 908         auto setupAdaptiveWatchpoint = [&] (JSObject* base, const Identifier& ident) -> ObjectPropertyCondition {
 909             // Performing these gets should not throw.
 910             PropertySlot slot(base, PropertySlot::InternalMethodType::Get);
 911             bool result = base->getOwnPropertySlot(base, exec, ident, slot);
 912             ASSERT_UNUSED(result, result);
 913             ASSERT(!catchScope.exception());
 914             RELEASE_ASSERT(slot.isCacheableValue());
 915             JSValue functionValue = slot.getValue(exec, ident);
 916             ASSERT(!catchScope.exception());
 917             ASSERT(jsDynamicCast<JSFunction*>(vm, functionValue));
 918
 919             ObjectPropertyCondition condition = generateConditionForSelfEquivalence(m_vm, nullptr, base, ident.impl());
 920             RELEASE_ASSERT(condition.requiredValue() == functionValue);
 921
 922             bool isWatchable = condition.isWatchable(PropertyCondition::EnsureWatchability);
 923             RELEASE_ASSERT(isWatchable); // We allow this to install the necessary watchpoints.
 924
 925             return condition;
 926         };
 927
 928         {
 929             ObjectPropertyCondition condition = setupAdaptiveWatchpoint(arrayIteratorPrototype, m_vm.propertyNames->next);
 930             m_arrayIteratorPrototypeNext = std::make_unique<ArrayIteratorAdaptiveWatchpoint>(condition, this);
 931             m_arrayIteratorPrototypeNext->install();
 932         }
 933
 934         {
 935             ArrayPrototype* arrayPrototype = this->arrayPrototype();
 936             ObjectPropertyCondition condition = setupAdaptiveWatchpoint(arrayPrototype, m_vm.propertyNames->iteratorSymbol);
 937             m_arrayPrototypeSymbolIteratorWatchpoint = std::make_unique<ArrayIteratorAdaptiveWatchpoint>(condition, this);
 938             m_arrayPrototypeSymbolIteratorWatchpoint->install();
 939         }
 940     }
 941
 942     resetPrototype(vm, getPrototypeDirect());
 943 }
 944
 945 bool JSGlobalObject::put(JSCell* cell, ExecState* exec, PropertyName propertyName, JSValue value, PutPropertySlot& slot)
 946 {
 947     VM& vm = exec->vm();
 948     auto scope = DECLARE_THROW_SCOPE(vm);
 949     JSGlobalObject* thisObject = jsCast<JSGlobalObject*>(cell);
 950     ASSERT(!Heap::heap(value) || Heap::heap(value) == Heap::heap(thisObject));
 951
 952     if (UNLIKELY(isThisValueAltered(slot, thisObject))) {
 953         scope.release();
 954         return ordinarySetSlow(exec, thisObject, propertyName, value, slot.thisValue(), slot.isStrictMode());
 955     }
 956
 957     bool shouldThrowReadOnlyError = slot.isStrictMode();
 958     bool ignoreReadOnlyErrors = false;
 959     bool putResult = false;
 960     bool done = symbolTablePutTouchWatchpointSet(thisObject, exec, propertyName, value, shouldThrowReadOnlyError, ignoreReadOnlyErrors, putResult);
 961     ASSERT((!!scope.exception() == (done && !putResult)) || !shouldThrowReadOnlyError);
 962     if (done)
 963         return putResult;
 964     scope.release();
 965     return Base::put(thisObject, exec, propertyName, value, slot);
 966 }
 967
 968 bool JSGlobalObject::defineOwnProperty(JSObject* object, ExecState* exec, PropertyName propertyName, const PropertyDescriptor& descriptor, bool shouldThrow)
 969 {
 970     JSGlobalObject* thisObject = jsCast<JSGlobalObject*>(object);
 971     PropertySlot slot(thisObject, PropertySlot::InternalMethodType::VMInquiry);
 972     // silently ignore attempts to add accessors aliasing vars.
 973     if (descriptor.isAccessorDescriptor() && symbolTableGet(thisObject, propertyName, slot))
 974         return false;
 975     return Base::defineOwnProperty(thisObject, exec, propertyName, descriptor, shouldThrow);
 976 }
 977
 978 void JSGlobalObject::addGlobalVar(const Identifier& ident)
 979 {
 980     ConcurrentJSLocker locker(symbolTable()->m_lock);
 981     SymbolTableEntry entry = symbolTable()->get(locker, ident.impl());
 982     if (!entry.isNull())
 983         return;
 984
 985     ScopeOffset offset = symbolTable()->takeNextScopeOffset(locker);
 986     SymbolTableEntry newEntry(VarOffset(offset), 0);
 987     newEntry.prepareToWatch();
 988     symbolTable()->add(locker, ident.impl(), WTFMove(newEntry));
 989
 990     ScopeOffset offsetForAssert = addVariables(1, jsUndefined());
 991     RELEASE_ASSERT(offsetForAssert == offset);
 992 }
 993
 994 void JSGlobalObject::addFunction(ExecState* exec, const Identifier& propertyName)
 995 {
 996     VM& vm = exec->vm();
 997     VM::DeletePropertyModeScope scope(vm, VM::DeletePropertyMode::IgnoreConfigurable);
 998     methodTable(vm)->deleteProperty(this, exec, propertyName);
 999     addGlobalVar(propertyName);
1000 }
1001
1002 void JSGlobalObject::setGlobalScopeExtension(JSScope* scope)
1003 {
1004     m_globalScopeExtension.set(vm(), this, scope);
1005 }
1006
1007 void JSGlobalObject::clearGlobalScopeExtension()
1008 {
1009     m_globalScopeExtension.clear();
1010 }
1011
1012 static inline JSObject* lastInPrototypeChain(JSObject* object)
1013 {
1014     JSObject* o = object;
1015     while (o->getPrototypeDirect().isObject())
1016         o = asObject(o->getPrototypeDirect());
1017     return o;
1018 }
1019
1020 // Private namespace for helpers for JSGlobalObject::haveABadTime()
1021 namespace {
1022
1023 class ObjectsWithBrokenIndexingFinder : public MarkedBlock::VoidFunctor {
1024 public:
1025     ObjectsWithBrokenIndexingFinder(MarkedArgumentBuffer&, JSGlobalObject*);
1026     IterationStatus operator()(HeapCell*, HeapCell::Kind) const;
1027
1028 private:
1029     void visit(JSCell*);
1030
1031     MarkedArgumentBuffer& m_foundObjects;
1032     JSGlobalObject* m_globalObject;
1033 };
1034
1035 ObjectsWithBrokenIndexingFinder::ObjectsWithBrokenIndexingFinder(
1036     MarkedArgumentBuffer& foundObjects, JSGlobalObject* globalObject)
1037     : m_foundObjects(foundObjects)
1038     , m_globalObject(globalObject)
1039 {
1040 }
1041
1042 inline bool hasBrokenIndexing(JSObject* object)
1043 {
1044     // This will change if we have more indexing types.
1045     IndexingType type = object->indexingType();
1046     // This could be made obviously more efficient, but isn't made so right now, because
1047     // we expect this to be an unlikely slow path anyway.
1048     return hasUndecided(type) || hasInt32(type) || hasDouble(type) || hasContiguous(type) || hasArrayStorage(type);
1049 }
1050
1051 inline void ObjectsWithBrokenIndexingFinder::visit(JSCell* cell)
1052 {
1053     if (!cell->isObject())
1054         return;
1055
1056     JSObject* object = asObject(cell);
1057
1058     // Run this filter first, since it's cheap, and ought to filter out a lot of objects.
1059     if (!hasBrokenIndexing(object))
1060         return;
1061
1062     // We only want to have a bad time in the affected global object, not in the entire
1063     // VM. But we have to be careful, since there may be objects that claim to belong to
1064     // a different global object that have prototypes from our global object.
1065     bool foundGlobalObject = false;
1066     for (JSObject* current = object; ;) {
1067         if (current->globalObject() == m_globalObject) {
1068             foundGlobalObject = true;
1069             break;
1070         }
1071
1072         JSValue prototypeValue = current->getPrototypeDirect();
1073         if (prototypeValue.isNull())
1074             break;
1075         current = asObject(prototypeValue);
1076     }
1077     if (!foundGlobalObject)
1078         return;
1079
1080     m_foundObjects.append(object);
1081 }
1082
1083 IterationStatus ObjectsWithBrokenIndexingFinder::operator()(HeapCell* cell, HeapCell::Kind kind) const
1084 {
1085     if (kind == HeapCell::JSCell) {
1086         // FIXME: This const_cast exists because this isn't a C++ lambda.
1087         // https://bugs.webkit.org/show_bug.cgi?id=159644
1088         const_cast<ObjectsWithBrokenIndexingFinder*>(this)->visit(static_cast<JSCell*>(cell));
1089     }
1090     return IterationStatus::Continue;
1091 }
1092
1093 } // end private namespace for helpers for JSGlobalObject::haveABadTime()
1094
1095 void JSGlobalObject::haveABadTime(VM& vm)
1096 {
1097     ASSERT(&vm == &this->vm());
1098
1099     if (isHavingABadTime())
1100         return;
1101
1102     // Make sure that all allocations or indexed storage transitions that are inlining
1103     // the assumption that it's safe to transition to a non-SlowPut array storage don't
1104     // do so anymore.
1105     m_havingABadTimeWatchpoint->fireAll(vm, "Having a bad time");
1106     ASSERT(isHavingABadTime()); // The watchpoint is what tells us that we're having a bad time.
1107
1108     // Make sure that all JSArray allocations that load the appropriate structure from
1109     // this object now load a structure that uses SlowPut.
1110     for (unsigned i = 0; i < NumberOfIndexingShapes; ++i)
1111         m_arrayStructureForIndexingShapeDuringAllocation[i].set(vm, this, originalArrayStructureForIndexingType(ArrayWithSlowPutArrayStorage));
1112
1113     // Same for any special array structures.
1114     Structure* slowPutStructure;
1115     slowPutStructure = createRegExpMatchesArraySlowPutStructure(vm, this);
1116     m_regExpMatchesArrayStructure.set(vm, this, slowPutStructure);
1117     slowPutStructure = ClonedArguments::createSlowPutStructure(vm, this, m_objectPrototype.get());
1118     m_clonedArgumentsStructure.set(vm, this, slowPutStructure);
1119
1120     // Make sure that all objects that have indexed storage switch to the slow kind of
1121     // indexed storage.
1122     MarkedArgumentBuffer foundObjects; // Use MarkedArgumentBuffer because switchToSlowPutArrayStorage() may GC.
1123     ObjectsWithBrokenIndexingFinder finder(foundObjects, this);
1124     {
1125         HeapIterationScope iterationScope(vm.heap);
1126         vm.heap.objectSpace().forEachLiveCell(iterationScope, finder);
1127     }
1128     while (!foundObjects.isEmpty()) {
1129         JSObject* object = asObject(foundObjects.last());
1130         foundObjects.removeLast();
1131         ASSERT(hasBrokenIndexing(object));
1132         object->switchToSlowPutArrayStorage(vm);
1133     }
1134 }
1135
1136 // Set prototype, and also insert the object prototype at the end of the chain.
1137 void JSGlobalObject::resetPrototype(VM& vm, JSValue prototype)
1138 {
1139     setPrototypeDirect(vm, prototype);
1140
1141     JSObject* oldLastInPrototypeChain = lastInPrototypeChain(this);
1142     JSObject* objectPrototype = m_objectPrototype.get();
1143     if (oldLastInPrototypeChain != objectPrototype)
1144         oldLastInPrototypeChain->setPrototypeDirect(vm, objectPrototype);
1145
1146     // Whenever we change the prototype of the global object, we need to create a new JSProxy with the correct prototype.
1147     setGlobalThis(vm, JSProxy::create(vm, JSProxy::createStructure(vm, this, prototype, PureForwardingProxyType), this));
1148 }
1149
1150 void JSGlobalObject::visitChildren(JSCell* cell, SlotVisitor& visitor)
1151 {
1152     JSGlobalObject* thisObject = jsCast<JSGlobalObject*>(cell);
1153     ASSERT_GC_OBJECT_INHERITS(thisObject, info());
1154     Base::visitChildren(thisObject, visitor);
1155
1156     visitor.append(thisObject->m_globalThis);
1157
1158     visitor.append(thisObject->m_globalLexicalEnvironment);
1159     visitor.append(thisObject->m_globalScopeExtension);
1160     visitor.append(thisObject->m_globalCallee);
1161     visitor.append(thisObject->m_regExpConstructor);
1162     visitor.append(thisObject->m_errorConstructor);
1163     visitor.append(thisObject->m_nativeErrorPrototypeStructure);
1164     visitor.append(thisObject->m_nativeErrorStructure);
1165     thisObject->m_evalErrorConstructor.visit(visitor);
1166     visitor.append(thisObject->m_rangeErrorConstructor);
1167     thisObject->m_referenceErrorConstructor.visit(visitor);
1168     thisObject->m_syntaxErrorConstructor.visit(visitor);
1169     visitor.append(thisObject->m_typeErrorConstructor);
1170     thisObject->m_URIErrorConstructor.visit(visitor);
1171     visitor.append(thisObject->m_objectConstructor);
1172     visitor.append(thisObject->m_promiseConstructor);
1173
1174     visitor.append(thisObject->m_nullGetterFunction);
1175     visitor.append(thisObject->m_nullSetterFunction);
1176
1177     visitor.append(thisObject->m_parseIntFunction);
1178     visitor.append(thisObject->m_evalFunction);
1179     visitor.append(thisObject->m_callFunction);
1180     visitor.append(thisObject->m_applyFunction);
1181     visitor.append(thisObject->m_throwTypeErrorFunction);
1182     thisObject->m_arrayProtoToStringFunction.visit(visitor);
1183     thisObject->m_arrayProtoValuesFunction.visit(visitor);
1184     thisObject->m_initializePromiseFunction.visit(visitor);
1185     thisObject->m_iteratorProtocolFunction.visit(visitor);
1186     visitor.append(thisObject->m_objectProtoValueOfFunction);
1187     visitor.append(thisObject->m_newPromiseCapabilityFunction);
1188     visitor.append(thisObject->m_functionProtoHasInstanceSymbolFunction);
1189     thisObject->m_throwTypeErrorGetterSetter.visit(visitor);
1190     visitor.append(thisObject->m_throwTypeErrorArgumentsCalleeAndCallerGetterSetter);
1191     visitor.append(thisObject->m_moduleLoader);
1192
1193     visitor.append(thisObject->m_objectPrototype);
1194     visitor.append(thisObject->m_functionPrototype);
1195     visitor.append(thisObject->m_arrayPrototype);
1196     visitor.append(thisObject->m_errorPrototype);
1197     visitor.append(thisObject->m_iteratorPrototype);
1198     visitor.append(thisObject->m_generatorFunctionPrototype);
1199     visitor.append(thisObject->m_generatorPrototype);
1200     visitor.append(thisObject->m_asyncFunctionPrototype);
1201     visitor.append(thisObject->m_moduleLoaderPrototype);
1202
1203     thisObject->m_debuggerScopeStructure.visit(visitor);
1204     thisObject->m_withScopeStructure.visit(visitor);
1205     visitor.append(thisObject->m_strictEvalActivationStructure);
1206     visitor.append(thisObject->m_lexicalEnvironmentStructure);
1207     thisObject->m_moduleEnvironmentStructure.visit(visitor);
1208     visitor.append(thisObject->m_directArgumentsStructure);
1209     visitor.append(thisObject->m_scopedArgumentsStructure);
1210     visitor.append(thisObject->m_clonedArgumentsStructure);
1211     visitor.append(thisObject->m_objectStructureForObjectConstructor);
1212     for (unsigned i = 0; i < NumberOfIndexingShapes; ++i)
1213         visitor.append(thisObject->m_originalArrayStructureForIndexingShape[i]);
1214     for (unsigned i = 0; i < NumberOfIndexingShapes; ++i)
1215         visitor.append(thisObject->m_arrayStructureForIndexingShapeDuringAllocation[i]);
1216     thisObject->m_callbackConstructorStructure.visit(visitor);
1217     thisObject->m_callbackFunctionStructure.visit(visitor);
1218     thisObject->m_callbackObjectStructure.visit(visitor);
1219     visitor.append(thisObject->m_propertyNameIteratorStructure);
1220 #if JSC_OBJC_API_ENABLED
1221     thisObject->m_objcCallbackFunctionStructure.visit(visitor);
1222     thisObject->m_objcWrapperObjectStructure.visit(visitor);
1223 #endif
1224     thisObject->m_nullPrototypeObjectStructure.visit(visitor);
1225     visitor.append(thisObject->m_errorStructure);
1226     visitor.append(thisObject->m_calleeStructure);
1227     visitor.append(thisObject->m_functionStructure);
1228     thisObject->m_customGetterSetterFunctionStructure.visit(visitor);
1229     thisObject->m_boundFunctionStructure.visit(visitor);
1230     visitor.append(thisObject->m_getterSetterStructure);
1231     thisObject->m_nativeStdFunctionStructure.visit(visitor);
1232     thisObject->m_namedFunctionStructure.visit(visitor);
1233     visitor.append(thisObject->m_symbolObjectStructure);
1234     visitor.append(thisObject->m_regExpStructure);
1235     visitor.append(thisObject->m_generatorFunctionStructure);
1236     visitor.append(thisObject->m_asyncFunctionStructure);
1237     visitor.append(thisObject->m_iteratorResultObjectStructure);
1238     visitor.append(thisObject->m_regExpMatchesArrayStructure);
1239     visitor.append(thisObject->m_moduleRecordStructure);
1240     visitor.append(thisObject->m_moduleNamespaceObjectStructure);
1241     visitor.append(thisObject->m_dollarVMStructure);
1242     visitor.append(thisObject->m_proxyObjectStructure);
1243     visitor.append(thisObject->m_callableProxyObjectStructure);
1244     visitor.append(thisObject->m_proxyRevokeStructure);
1245     visitor.append(thisObject->m_moduleLoaderStructure);
1246
1247     visitor.append(thisObject->m_arrayBufferPrototype);
1248     visitor.append(thisObject->m_arrayBufferStructure);
1249     visitor.append(thisObject->m_sharedArrayBufferPrototype);
1250     visitor.append(thisObject->m_sharedArrayBufferStructure);
1251
1252 #define VISIT_SIMPLE_TYPE(CapitalName, lowerName, properName, instanceType, jsName, prototypeBase) \
1253     visitor.append(thisObject->m_ ## lowerName ## Prototype); \
1254     visitor.append(thisObject->m_ ## properName ## Structure); \
1255
1256     FOR_EACH_SIMPLE_BUILTIN_TYPE(VISIT_SIMPLE_TYPE)
1257
1258 #if ENABLE(WEBASSEMBLY)
1259     visitor.append(thisObject->m_webAssemblyStructure);
1260     visitor.append(thisObject->m_webAssemblyModuleRecordStructure);
1261     visitor.append(thisObject->m_webAssemblyFunctionStructure);
1262     visitor.append(thisObject->m_webAssemblyWrapperFunctionStructure);
1263     FOR_EACH_WEBASSEMBLY_CONSTRUCTOR_TYPE(VISIT_SIMPLE_TYPE)
1264 #endif // ENABLE(WEBASSEMBLY)
1265
1266 #undef VISIT_SIMPLE_TYPE
1267
1268 #define VISIT_LAZY_TYPE(CapitalName, lowerName, properName, instanceType, jsName, prototypeBase) \
1269     thisObject->m_ ## properName ## Structure.visit(visitor);
1270
1271     FOR_EACH_LAZY_BUILTIN_TYPE(VISIT_LAZY_TYPE)
1272     FOR_EACH_BUILTIN_DERIVED_ITERATOR_TYPE(VISIT_LAZY_TYPE)
1273
1274 #undef VISIT_LAZY_TYPE
1275
1276     for (unsigned i = NUMBER_OF_TYPED_ARRAY_TYPES; i--;)
1277         thisObject->lazyTypedArrayStructure(indexToTypedArrayType(i)).visit(visitor);
1278
1279     visitor.append(thisObject->m_speciesGetterSetter);
1280     thisObject->m_typedArrayProto.visit(visitor);
1281     thisObject->m_typedArraySuperConstructor.visit(visitor);
1282 }
1283
1284 JSValue JSGlobalObject::toThis(JSCell*, ExecState* exec, ECMAMode ecmaMode)
1285 {
1286     if (ecmaMode == StrictMode)
1287         return jsUndefined();
1288     return exec->globalThisValue();
1289 }
1290
1291 ExecState* JSGlobalObject::globalExec()
1292 {
1293     return CallFrame::create(m_globalCallFrame);
1294 }
1295
1296 void JSGlobalObject::addStaticGlobals(GlobalPropertyInfo* globals, int count)
1297 {
1298     ScopeOffset startOffset = addVariables(count, jsUndefined());
1299
1300     for (int i = 0; i < count; ++i) {
1301         GlobalPropertyInfo& global = globals[i];
1302         ASSERT(global.attributes & DontDelete);
1303
1304         WatchpointSet* watchpointSet = nullptr;
1305         WriteBarrierBase<Unknown>* variable = nullptr;
1306         {
1307             ConcurrentJSLocker locker(symbolTable()->m_lock);
1308             ScopeOffset offset = symbolTable()->takeNextScopeOffset(locker);
1309             RELEASE_ASSERT(offset == startOffset + i);
1310             SymbolTableEntry newEntry(VarOffset(offset), global.attributes);
1311             newEntry.prepareToWatch();
1312             watchpointSet = newEntry.watchpointSet();
1313             symbolTable()->add(locker, global.identifier.impl(), WTFMove(newEntry));
1314             variable = &variableAt(offset);
1315         }
1316         symbolTablePutTouchWatchpointSet(vm(), this, global.identifier, global.value, variable, watchpointSet);
1317     }
1318 }
1319
1320 bool JSGlobalObject::getOwnPropertySlot(JSObject* object, ExecState* exec, PropertyName propertyName, PropertySlot& slot)
1321 {
1322     if (Base::getOwnPropertySlot(object, exec, propertyName, slot))
1323         return true;
1324     return symbolTableGet(jsCast<JSGlobalObject*>(object), propertyName, slot);
1325 }
1326
1327 void JSGlobalObject::clearRareData(JSCell* cell)
1328 {
1329     jsCast<JSGlobalObject*>(cell)->m_rareData = nullptr;
1330 }
1331
1332 void slowValidateCell(JSGlobalObject* globalObject)
1333 {
1334     RELEASE_ASSERT(globalObject->isGlobalObject());
1335     ASSERT_GC_OBJECT_INHERITS(globalObject, JSGlobalObject::info());
1336 }
1337
1338 void JSGlobalObject::setRemoteDebuggingEnabled(bool enabled)
1339 {
1340 #if ENABLE(REMOTE_INSPECTOR)
1341     m_inspectorDebuggable->setRemoteDebuggingAllowed(enabled);
1342 #else
1343     UNUSED_PARAM(enabled);
1344 #endif
1345 }
1346
1347 bool JSGlobalObject::remoteDebuggingEnabled() const
1348 {
1349 #if ENABLE(REMOTE_INSPECTOR)
1350     return m_inspectorDebuggable->remoteDebuggingAllowed();
1351 #else
1352     return false;
1353 #endif
1354 }
1355
1356 #if ENABLE(WEB_REPLAY)
1357 void JSGlobalObject::setInputCursor(Ref<InputCursor>&& cursor)
1358 {
1359     m_inputCursor = WTFMove(cursor);
1360     // Save or set the random seed. This performed here rather than the constructor
1361     // to avoid threading the input cursor through all the abstraction layers.
1362     if (m_inputCursor->isCapturing())
1363         m_inputCursor->appendInput<SetRandomSeed>(m_weakRandom.seed());
1364     else if (m_inputCursor->isReplaying()) {
1365         if (SetRandomSeed* input = m_inputCursor->fetchInput<SetRandomSeed>())
1366             m_weakRandom.setSeed(static_cast<unsigned>(input->randomSeed()));
1367     }
1368 }
1369 #endif
1370
1371 void JSGlobalObject::setName(const String& name)
1372 {
1373     m_name = name;
1374
1375 #if ENABLE(REMOTE_INSPECTOR)
1376     m_inspectorDebuggable->update();
1377 #endif
1378 }
1379
1380 # if ENABLE(INTL)
1381 const HashSet<String>& JSGlobalObject::intlCollatorAvailableLocales()
1382 {
1383     if (m_intlCollatorAvailableLocales.isEmpty()) {
1384         int32_t count = ucol_countAvailable();
1385         for (int32_t i = 0; i < count; ++i) {
1386             String locale(ucol_getAvailable(i));
1387             convertICULocaleToBCP47LanguageTag(locale);
1388             m_intlCollatorAvailableLocales.add(locale);
1389         }
1390     }
1391     return m_intlCollatorAvailableLocales;
1392 }
1393
1394 const HashSet<String>& JSGlobalObject::intlDateTimeFormatAvailableLocales()
1395 {
1396     if (m_intlDateTimeFormatAvailableLocales.isEmpty()) {
1397         int32_t count = udat_countAvailable();
1398         for (int32_t i = 0; i < count; ++i) {
1399             String locale(udat_getAvailable(i));
1400             convertICULocaleToBCP47LanguageTag(locale);
1401             m_intlDateTimeFormatAvailableLocales.add(locale);
1402         }
1403     }
1404     return m_intlDateTimeFormatAvailableLocales;
1405 }
1406
1407 const HashSet<String>& JSGlobalObject::intlNumberFormatAvailableLocales()
1408 {
1409     if (m_intlNumberFormatAvailableLocales.isEmpty()) {
1410         int32_t count = unum_countAvailable();
1411         for (int32_t i = 0; i < count; ++i) {
1412             String locale(unum_getAvailable(i));
1413             convertICULocaleToBCP47LanguageTag(locale);
1414             m_intlNumberFormatAvailableLocales.add(locale);
1415         }
1416     }
1417     return m_intlNumberFormatAvailableLocales;
1418 }
1419 #endif // ENABLE(INTL)
1420
1421 void JSGlobalObject::queueMicrotask(Ref<Microtask>&& task)
1422 {
1423     if (globalObjectMethodTable()->queueTaskToEventLoop) {
1424         globalObjectMethodTable()->queueTaskToEventLoop(this, WTFMove(task));
1425         return;
1426     }
1427
1428     vm().queueMicrotask(this, WTFMove(task));
1429 }
1430
1431 bool JSGlobalObject::hasDebugger() const
1432 {
1433     return m_debugger;
1434 }
1435
1436 bool JSGlobalObject::hasInteractiveDebugger() const
1437 {
1438     return m_debugger && m_debugger->isInteractivelyDebugging();
1439 }
1440
1441 JSGlobalObject* JSGlobalObject::create(VM& vm, Structure* structure)
1442 {
1443     JSGlobalObject* globalObject = new (NotNull, allocateCell<JSGlobalObject>(vm.heap)) JSGlobalObject(vm, structure);
1444     globalObject->finishCreation(vm);
1445     return globalObject;
1446 }
1447
1448 void JSGlobalObject::finishCreation(VM& vm)
1449 {
1450     Base::finishCreation(vm);
1451     structure()->setGlobalObject(vm, this);
1452     m_runtimeFlags = m_globalObjectMethodTable->javaScriptRuntimeFlags(this);
1453     init(vm);
1454     setGlobalThis(vm, JSProxy::create(vm, JSProxy::createStructure(vm, this, getPrototypeDirect(), PureForwardingProxyType), this));
1455 }
1456
1457 void JSGlobalObject::finishCreation(VM& vm, JSObject* thisValue)
1458 {
1459     Base::finishCreation(vm);
1460     structure()->setGlobalObject(vm, this);
1461     m_runtimeFlags = m_globalObjectMethodTable->javaScriptRuntimeFlags(this);
1462     init(vm);
1463     setGlobalThis(vm, thisValue);
1464 }
1465
1466 } // namespace JSC