Get rid of HeapRootVisitor and make SlotVisitor less painful to use
[WebKit-https.git] / Source / JavaScriptCore / runtime / JSGlobalObject.cpp
1 /*
2  * Copyright (C) 2007-2009, 2014-2016 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 "JSFixedArray.h"
84 #include "JSFunction.h"
85 #include "JSGeneratorFunction.h"
86 #include "JSGenericTypedArrayViewConstructorInlines.h"
87 #include "JSGenericTypedArrayViewInlines.h"
88 #include "JSGenericTypedArrayViewPrototypeInlines.h"
89 #include "JSGlobalObjectFunctions.h"
90 #include "JSInternalPromise.h"
91 #include "JSInternalPromiseConstructor.h"
92 #include "JSInternalPromisePrototype.h"
93 #include "JSJob.h"
94 #include "JSLexicalEnvironment.h"
95 #include "JSLock.h"
96 #include "JSMap.h"
97 #include "JSMapIterator.h"
98 #include "JSModuleEnvironment.h"
99 #include "JSModuleLoader.h"
100 #include "JSModuleNamespaceObject.h"
101 #include "JSModuleRecord.h"
102 #include "JSNativeStdFunction.h"
103 #include "JSONObject.h"
104 #include "JSPromise.h"
105 #include "JSPromiseConstructor.h"
106 #include "JSPromisePrototype.h"
107 #include "JSPropertyNameIterator.h"
108 #include "JSSet.h"
109 #include "JSSetIterator.h"
110 #include "JSStringIterator.h"
111 #include "JSTemplateRegistryKey.h"
112 #include "JSTypedArrayConstructors.h"
113 #include "JSTypedArrayPrototypes.h"
114 #include "JSTypedArrayViewConstructor.h"
115 #include "JSTypedArrayViewPrototype.h"
116 #include "JSTypedArrays.h"
117 #include "JSWeakMap.h"
118 #include "JSWeakSet.h"
119 #include "JSWebAssembly.h"
120 #include "JSWebAssemblyCallee.h"
121 #include "JSWithScope.h"
122 #include "LazyClassStructureInlines.h"
123 #include "LazyPropertyInlines.h"
124 #include "Lookup.h"
125 #include "MapConstructor.h"
126 #include "MapIteratorPrototype.h"
127 #include "MapPrototype.h"
128 #include "MarkedSpaceInlines.h"
129 #include "MathObject.h"
130 #include "Microtask.h"
131 #include "ModuleLoaderPrototype.h"
132 #include "NativeErrorConstructor.h"
133 #include "NativeErrorPrototype.h"
134 #include "NullGetterFunction.h"
135 #include "NullSetterFunction.h"
136 #include "NumberConstructor.h"
137 #include "NumberPrototype.h"
138 #include "ObjCCallbackFunction.h"
139 #include "ObjectConstructor.h"
140 #include "ObjectPropertyConditionSet.h"
141 #include "ObjectPrototype.h"
142 #include "ParserError.h"
143 #include "ProxyConstructor.h"
144 #include "ProxyObject.h"
145 #include "ProxyRevoke.h"
146 #include "ReflectObject.h"
147 #include "RegExpConstructor.h"
148 #include "RegExpMatchesArray.h"
149 #include "RegExpObject.h"
150 #include "RegExpPrototype.h"
151 #include "ScopedArguments.h"
152 #include "SetConstructor.h"
153 #include "SetIteratorPrototype.h"
154 #include "SetPrototype.h"
155 #include "StrictEvalActivation.h"
156 #include "StringConstructor.h"
157 #include "StringIteratorPrototype.h"
158 #include "StringPrototype.h"
159 #include "Symbol.h"
160 #include "SymbolConstructor.h"
161 #include "SymbolPrototype.h"
162 #include "VariableWriteFireDetail.h"
163 #include "WeakGCMapInlines.h"
164 #include "WeakMapConstructor.h"
165 #include "WeakMapPrototype.h"
166 #include "WeakSetConstructor.h"
167 #include "WeakSetPrototype.h"
168 #include <wtf/RandomNumber.h>
169
170 #if ENABLE(INTL)
171 #include "IntlObject.h"
172 #include <unicode/ucol.h>
173 #include <unicode/udat.h>
174 #include <unicode/unum.h>
175 #endif // ENABLE(INTL)
176
177 #if ENABLE(REMOTE_INSPECTOR)
178 #include "JSGlobalObjectDebuggable.h"
179 #include "JSGlobalObjectInspectorController.h"
180 #endif
181
182 #if ENABLE(WEB_REPLAY)
183 #include "EmptyInputCursor.h"
184 #include "JSReplayInputs.h"
185 #endif
186
187 namespace JSC {
188
189 static JSValue createProxyProperty(VM& vm, JSObject* object)
190 {
191     JSGlobalObject* global = jsCast<JSGlobalObject*>(object);
192     return ProxyConstructor::create(vm, ProxyConstructor::createStructure(vm, global, global->functionPrototype()));
193 }
194
195 static JSValue createJSONProperty(VM& vm, JSObject* object)
196 {
197     JSGlobalObject* global = jsCast<JSGlobalObject*>(object);
198     return JSONObject::create(vm, JSONObject::createStructure(vm, global, global->objectPrototype()));
199 }
200
201 static JSValue createMathProperty(VM& vm, JSObject* object)
202 {
203     JSGlobalObject* global = jsCast<JSGlobalObject*>(object);
204     return MathObject::create(vm, global, MathObject::createStructure(vm, global, global->objectPrototype()));
205 }
206
207 static JSValue createConsoleProperty(VM& vm, JSObject* object)
208 {
209     JSGlobalObject* global = jsCast<JSGlobalObject*>(object);
210     return ConsoleObject::create(vm, global, ConsoleObject::createStructure(vm, global, constructEmptyObject(global->globalExec())));
211 }
212
213 static JSValue createAtomicsProperty(VM& vm, JSObject* object)
214 {
215     JSGlobalObject* global = jsCast<JSGlobalObject*>(object);
216     return AtomicsObject::create(vm, global, AtomicsObject::createStructure(vm, global, global->objectPrototype()));
217 }
218
219 static EncodedJSValue JSC_HOST_CALL makeBoundFunction(ExecState* exec)
220 {
221     VM& vm = exec->vm();
222     JSGlobalObject* globalObject = exec->lexicalGlobalObject();
223
224     JSObject* target = asObject(exec->uncheckedArgument(0));
225     JSValue boundThis = exec->uncheckedArgument(1);
226     JSValue boundArgs = exec->uncheckedArgument(2);
227     JSValue length = exec->uncheckedArgument(3);
228     JSString* name = asString(exec->uncheckedArgument(4));
229
230     return JSValue::encode(JSBoundFunction::create(
231         vm, exec, globalObject, target, boundThis, boundArgs.isCell() ? jsCast<JSArray*>(boundArgs) : nullptr, length.asInt32(), name->value(exec)));
232 }
233
234 static EncodedJSValue JSC_HOST_CALL hasOwnLengthProperty(ExecState* exec)
235 {
236     VM& vm = exec->vm();
237     JSObject* target = asObject(exec->uncheckedArgument(0));
238     return JSValue::encode(jsBoolean(target->hasOwnProperty(exec, vm.propertyNames->length)));
239 }
240
241 } // namespace JSC
242
243 #include "JSGlobalObject.lut.h"
244
245 namespace JSC {
246
247 const ClassInfo JSGlobalObject::s_info = { "GlobalObject", &Base::s_info, &globalObjectTable, CREATE_METHOD_TABLE(JSGlobalObject) };
248
249 const GlobalObjectMethodTable JSGlobalObject::s_globalObjectMethodTable = {
250     &supportsRichSourceInfo,
251     &shouldInterruptScript,
252     &javaScriptRuntimeFlags,
253     nullptr,
254     &shouldInterruptScriptBeforeTimeout,
255     nullptr,
256     nullptr,
257     nullptr,
258     nullptr,
259     nullptr
260 };
261
262 /* Source for JSGlobalObject.lut.h
263 @begin globalObjectTable
264   parseFloat            globalFuncParseFloat                         DontEnum|Function 1
265   isNaN                 JSBuiltin                                    DontEnum|Function 1
266   isFinite              JSBuiltin                                    DontEnum|Function 1
267   escape                globalFuncEscape                             DontEnum|Function 1
268   unescape              globalFuncUnescape                           DontEnum|Function 1
269   decodeURI             globalFuncDecodeURI                          DontEnum|Function 1
270   decodeURIComponent    globalFuncDecodeURIComponent                 DontEnum|Function 1
271   encodeURI             globalFuncEncodeURI                          DontEnum|Function 1
272   encodeURIComponent    globalFuncEncodeURIComponent                 DontEnum|Function 1
273   EvalError             JSGlobalObject::m_evalErrorConstructor       DontEnum|CellProperty
274   ReferenceError        JSGlobalObject::m_referenceErrorConstructor  DontEnum|CellProperty
275   SyntaxError           JSGlobalObject::m_syntaxErrorConstructor     DontEnum|CellProperty
276   URIError              JSGlobalObject::m_URIErrorConstructor        DontEnum|CellProperty
277   Proxy                 createProxyProperty                          DontEnum|PropertyCallback
278   JSON                  createJSONProperty                           DontEnum|PropertyCallback
279   Math                  createMathProperty                           DontEnum|PropertyCallback
280   Atomics               createAtomicsProperty                        DontEnum|PropertyCallback
281   console               createConsoleProperty                        DontEnum|PropertyCallback
282   Int8Array             JSGlobalObject::m_typedArrayInt8             DontEnum|ClassStructure
283   Int16Array            JSGlobalObject::m_typedArrayInt16            DontEnum|ClassStructure
284   Int32Array            JSGlobalObject::m_typedArrayInt32            DontEnum|ClassStructure
285   Uint8Array            JSGlobalObject::m_typedArrayUint8            DontEnum|ClassStructure
286   Uint8ClampedArray     JSGlobalObject::m_typedArrayUint8Clamped     DontEnum|ClassStructure
287   Uint16Array           JSGlobalObject::m_typedArrayUint16           DontEnum|ClassStructure
288   Uint32Array           JSGlobalObject::m_typedArrayUint32           DontEnum|ClassStructure
289   Float32Array          JSGlobalObject::m_typedArrayFloat32          DontEnum|ClassStructure
290   Float64Array          JSGlobalObject::m_typedArrayFloat64          DontEnum|ClassStructure
291   DataView              JSGlobalObject::m_typedArrayDataView         DontEnum|ClassStructure
292   Set                   JSGlobalObject::m_setStructure               DontEnum|ClassStructure
293   Date                  JSGlobalObject::m_dateStructure              DontEnum|ClassStructure
294   Boolean               JSGlobalObject::m_booleanObjectStructure     DontEnum|ClassStructure
295   Number                JSGlobalObject::m_numberObjectStructure      DontEnum|ClassStructure
296   WeakMap               JSGlobalObject::m_weakMapStructure           DontEnum|ClassStructure
297   WeakSet               JSGlobalObject::m_weakSetStructure           DontEnum|ClassStructure
298 @end
299 */
300
301 static EncodedJSValue JSC_HOST_CALL getTemplateObject(ExecState* exec)
302 {
303     JSValue thisValue = exec->thisValue();
304     ASSERT(thisValue.inherits(JSTemplateRegistryKey::info()));
305     return JSValue::encode(exec->lexicalGlobalObject()->templateRegistry().getTemplateObject(exec, jsCast<JSTemplateRegistryKey*>(thisValue)));
306 }
307
308
309 static EncodedJSValue JSC_HOST_CALL enqueueJob(ExecState* exec)
310 {
311     VM& vm = exec->vm();
312     JSGlobalObject* globalObject = exec->lexicalGlobalObject();
313
314     JSValue job = exec->argument(0);
315     JSValue arguments = exec->argument(1);
316     ASSERT(arguments.inherits(JSArray::info()));
317
318     globalObject->queueMicrotask(createJSJob(vm, job, jsCast<JSArray*>(arguments)));
319
320     return JSValue::encode(jsUndefined());
321 }
322
323 JSGlobalObject::JSGlobalObject(VM& vm, Structure* structure, const GlobalObjectMethodTable* globalObjectMethodTable)
324     : Base(vm, structure, 0)
325     , m_vm(vm)
326 #if ENABLE(WEB_REPLAY)
327     , m_inputCursor(EmptyInputCursor::create())
328 #endif
329     , m_masqueradesAsUndefinedWatchpoint(adoptRef(new WatchpointSet(IsWatched)))
330     , m_havingABadTimeWatchpoint(adoptRef(new WatchpointSet(IsWatched)))
331     , m_varInjectionWatchpoint(adoptRef(new WatchpointSet(IsWatched)))
332     , m_weakRandom(Options::forceWeakRandomSeed() ? Options::forcedWeakRandomSeed() : static_cast<unsigned>(randomNumber() * (std::numeric_limits<unsigned>::max() + 1.0)))
333     , m_arrayIteratorProtocolWatchpoint(IsWatched)
334     , m_templateRegistry(vm)
335     , m_evalEnabled(true)
336     , m_runtimeFlags()
337     , m_consoleClient(nullptr)
338     , m_globalObjectMethodTable(globalObjectMethodTable ? globalObjectMethodTable : &s_globalObjectMethodTable)
339 {
340 }
341
342 JSGlobalObject::~JSGlobalObject()
343 {
344 #if ENABLE(REMOTE_INSPECTOR)
345     m_inspectorController->globalObjectDestroyed();
346 #endif
347
348     if (m_debugger)
349         m_debugger->detach(this, Debugger::GlobalObjectIsDestructing);
350 }
351
352 void JSGlobalObject::destroy(JSCell* cell)
353 {
354     static_cast<JSGlobalObject*>(cell)->JSGlobalObject::~JSGlobalObject();
355 }
356
357 void JSGlobalObject::setGlobalThis(VM& vm, JSObject* globalThis)
358 {
359     m_globalThis.set(vm, this, globalThis);
360 }
361
362 static JSObject* getGetterById(ExecState* exec, JSObject* base, const Identifier& ident)
363 {
364     JSValue baseValue = JSValue(base);
365     PropertySlot slot(baseValue, PropertySlot::InternalMethodType::VMInquiry);
366     baseValue.getPropertySlot(exec, ident, slot);
367     return slot.getPureResult().toObject(exec);
368 }
369
370 void JSGlobalObject::init(VM& vm)
371 {
372     ASSERT(vm.currentThreadIsHoldingAPILock());
373     auto catchScope = DECLARE_CATCH_SCOPE(vm);
374
375     Base::setStructure(vm, Structure::toCacheableDictionaryTransition(vm, structure()));
376
377     m_debugger = 0;
378
379 #if ENABLE(REMOTE_INSPECTOR)
380     m_inspectorController = std::make_unique<Inspector::JSGlobalObjectInspectorController>(*this);
381     m_inspectorDebuggable = std::make_unique<JSGlobalObjectDebuggable>(*this);
382     m_inspectorDebuggable->init();
383     m_consoleClient = m_inspectorController->consoleClient();
384 #endif
385
386     m_functionPrototype.set(vm, this, FunctionPrototype::create(vm, FunctionPrototype::createStructure(vm, this, jsNull()))); // The real prototype will be set once ObjectPrototype is created.
387     m_calleeStructure.set(vm, this, JSCallee::createStructure(vm, this, jsNull()));
388
389     m_globalLexicalEnvironment.set(vm, this, JSGlobalLexicalEnvironment::create(vm, JSGlobalLexicalEnvironment::createStructure(vm, this), this));
390     // Need to create the callee structure (above) before creating the callee.
391     JSCallee* globalCallee = JSCallee::create(vm, this, globalScope());
392     m_globalCallee.set(vm, this, globalCallee);
393
394     ExecState::initGlobalExec(JSGlobalObject::globalExec(), globalCallee);
395     ExecState* exec = JSGlobalObject::globalExec();
396
397     m_functionStructure.set(vm, this, JSFunction::createStructure(vm, this, m_functionPrototype.get()));
398     m_customGetterSetterFunctionStructure.initLater(
399         [] (const Initializer<Structure>& init) {
400             init.set(JSCustomGetterSetterFunction::createStructure(init.vm, init.owner, init.owner->m_functionPrototype.get()));
401         });
402     m_boundFunctionStructure.initLater(
403         [] (const Initializer<Structure>& init) {
404             init.set(JSBoundFunction::createStructure(init.vm, init.owner, init.owner->m_functionPrototype.get()));
405         });
406     m_getterSetterStructure.set(vm, this, GetterSetter::createStructure(vm, this, jsNull()));
407     m_nativeStdFunctionStructure.initLater(
408         [] (const Initializer<Structure>& init) {
409             init.set(JSNativeStdFunction::createStructure(init.vm, init.owner, init.owner->m_functionPrototype.get()));
410         });
411     m_namedFunctionStructure.initLater(
412         [] (const Initializer<Structure>& init) {
413             init.set(Structure::addPropertyTransition(init.vm, init.owner->m_functionStructure.get(), init.vm.propertyNames->name, DontDelete | ReadOnly | DontEnum, init.owner->m_functionNameOffset));
414         });
415     JSFunction* callFunction = 0;
416     JSFunction* applyFunction = 0;
417     JSFunction* hasInstanceSymbolFunction = 0;
418     m_functionPrototype->addFunctionProperties(exec, this, &callFunction, &applyFunction, &hasInstanceSymbolFunction);
419     m_callFunction.set(vm, this, callFunction);
420     m_applyFunction.set(vm, this, applyFunction);
421     m_arrayProtoToStringFunction.initLater(
422         [] (const Initializer<JSFunction>& init) {
423             init.set(JSFunction::create(init.vm, init.owner, 0, init.vm.propertyNames->toString.string(), arrayProtoFuncToString, NoIntrinsic));
424         });
425     m_arrayProtoValuesFunction.initLater(
426         [] (const Initializer<JSFunction>& init) {
427             init.set(JSFunction::createBuiltinFunction(init.vm, arrayPrototypeValuesCodeGenerator(init.vm), init.owner));
428         });
429     m_initializePromiseFunction.initLater(
430         [] (const Initializer<JSFunction>& init) {
431             init.set(JSFunction::createBuiltinFunction(init.vm, promiseOperationsInitializePromiseCodeGenerator(init.vm), init.owner));
432         });
433
434     m_iteratorProtocolFunction.initLater(
435         [] (const Initializer<JSFunction>& init) {
436             init.set(JSFunction::createBuiltinFunction(init.vm, iteratorHelpersPerformIterationCodeGenerator(init.vm), init.owner));
437         });
438
439     m_newPromiseCapabilityFunction.set(vm, this, JSFunction::createBuiltinFunction(vm, promiseOperationsNewPromiseCapabilityCodeGenerator(vm), this));
440     m_functionProtoHasInstanceSymbolFunction.set(vm, this, hasInstanceSymbolFunction);
441     m_throwTypeErrorGetterSetter.initLater(
442         [] (const Initializer<GetterSetter>& init) {
443             JSFunction* thrower = init.owner->throwTypeErrorFunction();
444             GetterSetter* getterSetter = GetterSetter::create(init.vm, init.owner);
445             getterSetter->setGetter(init.vm, init.owner, thrower);
446             getterSetter->setSetter(init.vm, init.owner, thrower);
447             init.set(getterSetter);
448         });
449
450     m_nullGetterFunction.set(vm, this, NullGetterFunction::create(vm, NullGetterFunction::createStructure(vm, this, m_functionPrototype.get())));
451     m_nullSetterFunction.set(vm, this, NullSetterFunction::create(vm, NullSetterFunction::createStructure(vm, this, m_functionPrototype.get())));
452     m_objectPrototype.set(vm, this, ObjectPrototype::create(vm, this, ObjectPrototype::createStructure(vm, this, jsNull())));
453     GetterSetter* protoAccessor = GetterSetter::create(vm, this);
454     protoAccessor->setGetter(vm, this, JSFunction::create(vm, this, 0, makeString("get ", vm.propertyNames->underscoreProto.string()), globalFuncProtoGetter));
455     protoAccessor->setSetter(vm, this, JSFunction::create(vm, this, 0, makeString("set ", vm.propertyNames->underscoreProto.string()), globalFuncProtoSetter));
456     m_objectPrototype->putDirectNonIndexAccessor(vm, vm.propertyNames->underscoreProto, protoAccessor, Accessor | DontEnum);
457     m_functionPrototype->structure()->setPrototypeWithoutTransition(vm, m_objectPrototype.get());
458     m_objectStructureForObjectConstructor.set(vm, this, vm.prototypeMap.emptyObjectStructureForPrototype(m_objectPrototype.get(), JSFinalObject::defaultInlineCapacity()));
459     
460     JSFunction* thrower = JSFunction::create(vm, this, 0, String(), globalFuncThrowTypeErrorArgumentsCalleeAndCaller);
461     GetterSetter* getterSetter = GetterSetter::create(vm, this);
462     getterSetter->setGetter(vm, this, thrower);
463     getterSetter->setSetter(vm, this, thrower);
464     m_throwTypeErrorArgumentsCalleeAndCallerGetterSetter.set(vm, this, getterSetter);
465     
466     m_functionPrototype->initRestrictedProperties(exec, this);
467
468     m_speciesGetterSetter.set(vm, this, GetterSetter::create(vm, this));
469     m_speciesGetterSetter->setGetter(vm, this, JSFunction::createBuiltinFunction(vm, globalOperationsSpeciesGetterCodeGenerator(vm), this, "get [Symbol.species]"));
470
471     m_typedArrayProto.initLater(
472         [] (const Initializer<JSTypedArrayViewPrototype>& init) {
473             init.set(JSTypedArrayViewPrototype::create(init.vm, init.owner, JSTypedArrayViewPrototype::createStructure(init.vm, init.owner, init.owner->m_objectPrototype.get())));
474             
475             // Make sure that the constructor gets initialized, too.
476             init.owner->m_typedArraySuperConstructor.get(init.owner);
477         });
478     m_typedArraySuperConstructor.initLater(
479         [] (const Initializer<JSTypedArrayViewConstructor>& init) {
480             JSTypedArrayViewPrototype* prototype = init.owner->m_typedArrayProto.get(init.owner);
481             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());
482             prototype->putDirectWithoutTransition(init.vm, init.vm.propertyNames->constructor, constructor, DontEnum);
483             init.set(constructor);
484         });
485     
486 #define INIT_TYPED_ARRAY_LATER(type) \
487     m_typedArray ## type.initLater( \
488         [] (LazyClassStructure::Initializer& init) { \
489             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)))); \
490             init.setStructure(JS ## type ## Array::createStructure(init.vm, init.global, init.prototype)); \
491             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))); \
492             init.global->putDirectWithoutTransition(init.vm, init.vm.propertyNames->builtinNames().type ## ArrayPrivateName(), init.constructor, DontEnum); \
493         });
494     FOR_EACH_TYPED_ARRAY_TYPE_EXCLUDING_DATA_VIEW(INIT_TYPED_ARRAY_LATER)
495 #undef INIT_TYPED_ARRAY_LATER
496     
497     m_typedArrayDataView.initLater(
498         [] (LazyClassStructure::Initializer& init) {
499             init.setPrototype(JSDataViewPrototype::create(init.vm, JSDataViewPrototype::createStructure(init.vm, init.global, init.global->m_objectPrototype.get())));
500             init.setStructure(JSDataView::createStructure(init.vm, init.global, init.prototype));
501             init.setConstructor(JSDataViewConstructor::create(init.vm, init.global, JSDataViewConstructor::createStructure(init.vm, init.global, init.global->m_functionPrototype.get()), init.prototype, ASCIILiteral("DataView"), nullptr));
502         });
503     
504     m_lexicalEnvironmentStructure.set(vm, this, JSLexicalEnvironment::createStructure(vm, this));
505     m_moduleEnvironmentStructure.initLater(
506         [] (const Initializer<Structure>& init) {
507             init.set(JSModuleEnvironment::createStructure(init.vm, init.owner));
508         });
509     m_strictEvalActivationStructure.set(vm, this, StrictEvalActivation::createStructure(vm, this, jsNull()));
510     m_debuggerScopeStructure.initLater(
511         [] (const Initializer<Structure>& init) {
512             init.set(DebuggerScope::createStructure(init.vm, init.owner));
513         });
514     m_withScopeStructure.initLater(
515         [] (const Initializer<Structure>& init) {
516             init.set(JSWithScope::createStructure(init.vm, init.owner, jsNull()));
517         });
518     
519     m_nullPrototypeObjectStructure.initLater(
520         [] (const Initializer<Structure>& init) {
521             init.set(JSFinalObject::createStructure(init.vm, init.owner, jsNull(), JSFinalObject::defaultInlineCapacity()));
522         });
523     
524     m_callbackFunctionStructure.initLater(
525         [] (const Initializer<Structure>& init) {
526             init.set(JSCallbackFunction::createStructure(init.vm, init.owner, init.owner->m_functionPrototype.get()));
527         });
528     m_directArgumentsStructure.set(vm, this, DirectArguments::createStructure(vm, this, m_objectPrototype.get()));
529     m_scopedArgumentsStructure.set(vm, this, ScopedArguments::createStructure(vm, this, m_objectPrototype.get()));
530     m_clonedArgumentsStructure.set(vm, this, ClonedArguments::createStructure(vm, this, m_objectPrototype.get()));
531     m_callbackConstructorStructure.initLater(
532         [] (const Initializer<Structure>& init) {
533             init.set(JSCallbackConstructor::createStructure(init.vm, init.owner, init.owner->m_objectPrototype.get()));
534         });
535     m_callbackObjectStructure.initLater(
536         [] (const Initializer<Structure>& init) {
537             init.set(JSCallbackObject<JSDestructibleObject>::createStructure(init.vm, init.owner, init.owner->m_objectPrototype.get()));
538         });
539
540 #if JSC_OBJC_API_ENABLED
541     m_objcCallbackFunctionStructure.initLater(
542         [] (const Initializer<Structure>& init) {
543             init.set(ObjCCallbackFunction::createStructure(init.vm, init.owner, init.owner->m_functionPrototype.get()));
544         });
545     m_objcWrapperObjectStructure.initLater(
546         [] (const Initializer<Structure>& init) {
547             init.set(JSCallbackObject<JSAPIWrapperObject>::createStructure(init.vm, init.owner, init.owner->m_objectPrototype.get()));
548         });
549 #endif
550     
551     m_arrayPrototype.set(vm, this, ArrayPrototype::create(vm, this, ArrayPrototype::createStructure(vm, this, m_objectPrototype.get())));
552     
553     m_originalArrayStructureForIndexingShape[UndecidedShape >> IndexingShapeShift].set(vm, this, JSArray::createStructure(vm, this, m_arrayPrototype.get(), ArrayWithUndecided));
554     m_originalArrayStructureForIndexingShape[Int32Shape >> IndexingShapeShift].set(vm, this, JSArray::createStructure(vm, this, m_arrayPrototype.get(), ArrayWithInt32));
555     m_originalArrayStructureForIndexingShape[DoubleShape >> IndexingShapeShift].set(vm, this, JSArray::createStructure(vm, this, m_arrayPrototype.get(), ArrayWithDouble));
556     m_originalArrayStructureForIndexingShape[ContiguousShape >> IndexingShapeShift].set(vm, this, JSArray::createStructure(vm, this, m_arrayPrototype.get(), ArrayWithContiguous));
557     m_originalArrayStructureForIndexingShape[ArrayStorageShape >> IndexingShapeShift].set(vm, this, JSArray::createStructure(vm, this, m_arrayPrototype.get(), ArrayWithArrayStorage));
558     m_originalArrayStructureForIndexingShape[SlowPutArrayStorageShape >> IndexingShapeShift].set(vm, this, JSArray::createStructure(vm, this, m_arrayPrototype.get(), ArrayWithSlowPutArrayStorage));
559     for (unsigned i = 0; i < NumberOfIndexingShapes; ++i)
560         m_arrayStructureForIndexingShapeDuringAllocation[i] = m_originalArrayStructureForIndexingShape[i];
561
562     m_regExpPrototype.set(vm, this, RegExpPrototype::create(vm, this, RegExpPrototype::createStructure(vm, this, m_objectPrototype.get())));
563     m_regExpStructure.set(vm, this, RegExpObject::createStructure(vm, this, m_regExpPrototype.get()));
564     m_regExpMatchesArrayStructure.set(vm, this, createRegExpMatchesArrayStructure(vm, this));
565
566     m_moduleRecordStructure.set(vm, this, JSModuleRecord::createStructure(vm, this, m_objectPrototype.get()));
567     m_moduleNamespaceObjectStructure.set(vm, this, JSModuleNamespaceObject::createStructure(vm, this, jsNull()));
568     {
569         bool isCallable = false;
570         m_proxyObjectStructure.set(vm, this, ProxyObject::createStructure(vm, this, jsNull(), isCallable));
571         isCallable = true;
572         m_callableProxyObjectStructure.set(vm, this, ProxyObject::createStructure(vm, this, jsNull(), isCallable));
573     }
574     m_proxyRevokeStructure.set(vm, this, ProxyRevoke::createStructure(vm, this, m_functionPrototype.get()));
575
576     m_parseIntFunction.set(vm, this, JSFunction::create(vm, this, 2, vm.propertyNames->parseInt.string(), globalFuncParseInt, NoIntrinsic));
577     putDirectWithoutTransition(vm, vm.propertyNames->parseInt, m_parseIntFunction.get(), DontEnum);
578     
579     m_arrayBufferPrototype.set(vm, this, JSArrayBufferPrototype::create(vm, this, JSArrayBufferPrototype::createStructure(vm, this, m_objectPrototype.get()), ArrayBufferSharingMode::Default));
580     m_arrayBufferStructure.set(vm, this, JSArrayBuffer::createStructure(vm, this, m_arrayBufferPrototype.get()));
581     m_sharedArrayBufferPrototype.set(vm, this, JSArrayBufferPrototype::create(vm, this, JSArrayBufferPrototype::createStructure(vm, this, m_objectPrototype.get()), ArrayBufferSharingMode::Shared));
582     m_sharedArrayBufferStructure.set(vm, this, JSArrayBuffer::createStructure(vm, this, m_sharedArrayBufferPrototype.get()));
583
584 #define CREATE_PROTOTYPE_FOR_SIMPLE_TYPE(capitalName, lowerName, properName, instanceType, jsName, prototypeBase) \
585 m_ ## lowerName ## Prototype.set(vm, this, capitalName##Prototype::create(vm, this, capitalName##Prototype::createStructure(vm, this, m_ ## prototypeBase ## Prototype.get()))); \
586 m_ ## properName ## Structure.set(vm, this, instanceType::createStructure(vm, this, m_ ## lowerName ## Prototype.get()));
587     
588     FOR_EACH_SIMPLE_BUILTIN_TYPE(CREATE_PROTOTYPE_FOR_SIMPLE_TYPE)
589     
590 #undef CREATE_PROTOTYPE_FOR_SIMPLE_TYPE
591
592 #define CREATE_PROTOTYPE_FOR_LAZY_TYPE(capitalName, lowerName, properName, instanceType, jsName, prototypeBase) \
593     m_ ## properName ## Structure.initLater(\
594         [] (LazyClassStructure::Initializer& init) { \
595             init.setPrototype(capitalName##Prototype::create(init.vm, init.global, capitalName##Prototype::createStructure(init.vm, init.global, init.global->m_ ## prototypeBase ## Prototype.get()))); \
596             init.setStructure(instanceType::createStructure(init.vm, init.global, init.prototype)); \
597             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())); \
598         });
599     
600     FOR_EACH_LAZY_BUILTIN_TYPE(CREATE_PROTOTYPE_FOR_LAZY_TYPE)
601     
602 #undef CREATE_PROTOTYPE_FOR_LAZY_TYPE
603     
604     m_iteratorPrototype.set(vm, this, IteratorPrototype::create(vm, this, IteratorPrototype::createStructure(vm, this, m_objectPrototype.get())));
605
606 #define CREATE_PROTOTYPE_FOR_DERIVED_ITERATOR_TYPE(capitalName, lowerName, properName, instanceType, jsName, prototypeBase) \
607     m_ ## lowerName ## Structure.initLater( \
608         [] (const Initializer<Structure>& init) { \
609             JSObject* prototype = capitalName ## Prototype::create(init.vm, init.owner, capitalName ## Prototype::createStructure(init.vm, init.owner, init.owner->m_iteratorPrototype.get())); \
610             init.set(instanceType::createStructure(init.vm, init.owner, prototype)); \
611         });
612     FOR_EACH_BUILTIN_DERIVED_ITERATOR_TYPE(CREATE_PROTOTYPE_FOR_DERIVED_ITERATOR_TYPE)
613 #undef CREATE_PROTOTYPE_FOR_DERIVED_ITERATOR_TYPE
614
615     m_propertyNameIteratorStructure.set(vm, this, JSPropertyNameIterator::createStructure(vm, this, m_iteratorPrototype.get()));
616     m_generatorPrototype.set(vm, this, GeneratorPrototype::create(vm, this, GeneratorPrototype::createStructure(vm, this, m_iteratorPrototype.get())));
617     m_moduleLoaderPrototype.set(vm, this, ModuleLoaderPrototype::create(vm, this, ModuleLoaderPrototype::createStructure(vm, this, m_objectPrototype.get())));
618     
619     // Constructors
620
621     ObjectConstructor* objectConstructor = ObjectConstructor::create(vm, this, ObjectConstructor::createStructure(vm, this, m_functionPrototype.get()), m_objectPrototype.get());
622     m_objectConstructor.set(vm, this, objectConstructor);
623
624     JSFunction* throwTypeErrorFunction = JSFunction::create(vm, this, 0, String(), globalFuncThrowTypeError);
625     m_throwTypeErrorFunction.set(vm, this, throwTypeErrorFunction);
626
627     JSCell* functionConstructor = FunctionConstructor::create(vm, FunctionConstructor::createStructure(vm, this, m_functionPrototype.get()), m_functionPrototype.get());
628
629     ArrayConstructor* arrayConstructor = ArrayConstructor::create(vm, this, ArrayConstructor::createStructure(vm, this, m_functionPrototype.get()), m_arrayPrototype.get(), m_speciesGetterSetter.get());
630     m_arrayConstructor.set(vm, this, arrayConstructor);
631     
632     m_regExpConstructor.set(vm, this, RegExpConstructor::create(vm, RegExpConstructor::createStructure(vm, this, m_functionPrototype.get()), m_regExpPrototype.get(), m_speciesGetterSetter.get()));
633     
634     JSArrayBufferConstructor* arrayBufferConstructor = JSArrayBufferConstructor::create(vm, JSArrayBufferConstructor::createStructure(vm, this, m_functionPrototype.get()), m_arrayBufferPrototype.get(), m_speciesGetterSetter.get(), ArrayBufferSharingMode::Default);
635     m_arrayBufferPrototype->putDirectWithoutTransition(vm, vm.propertyNames->constructor, arrayBufferConstructor, DontEnum);
636     JSArrayBufferConstructor* sharedArrayBufferConstructor = nullptr;
637     sharedArrayBufferConstructor = JSArrayBufferConstructor::create(vm, JSArrayBufferConstructor::createStructure(vm, this, m_functionPrototype.get()), m_sharedArrayBufferPrototype.get(), m_speciesGetterSetter.get(), ArrayBufferSharingMode::Shared);
638     m_sharedArrayBufferPrototype->putDirectWithoutTransition(vm, vm.propertyNames->constructor, sharedArrayBufferConstructor, DontEnum);
639     
640 #define CREATE_CONSTRUCTOR_FOR_SIMPLE_TYPE(capitalName, lowerName, properName, instanceType, jsName, prototypeBase) \
641 capitalName ## Constructor* lowerName ## Constructor = capitalName ## Constructor::create(vm, capitalName ## Constructor::createStructure(vm, this, m_functionPrototype.get()), m_ ## lowerName ## Prototype.get(), m_speciesGetterSetter.get()); \
642 m_ ## lowerName ## Prototype->putDirectWithoutTransition(vm, vm.propertyNames->constructor, lowerName ## Constructor, DontEnum); \
643
644     FOR_EACH_SIMPLE_BUILTIN_TYPE(CREATE_CONSTRUCTOR_FOR_SIMPLE_TYPE)
645     
646 #undef CREATE_CONSTRUCTOR_FOR_SIMPLE_TYPE
647
648     m_errorConstructor.set(vm, this, errorConstructor);
649     m_promiseConstructor.set(vm, this, promiseConstructor);
650     m_internalPromiseConstructor.set(vm, this, internalPromiseConstructor);
651     
652     m_nativeErrorPrototypeStructure.set(vm, this, NativeErrorPrototype::createStructure(vm, this, m_errorPrototype.get()));
653     m_nativeErrorStructure.set(vm, this, NativeErrorConstructor::createStructure(vm, this, m_functionPrototype.get()));
654     m_evalErrorConstructor.initLater(
655         [] (const Initializer<NativeErrorConstructor>& init) {
656             init.set(NativeErrorConstructor::create(init.vm, init.owner, init.owner->m_nativeErrorStructure.get(), init.owner->m_nativeErrorPrototypeStructure.get(), ASCIILiteral("EvalError")));
657         });
658     m_rangeErrorConstructor.set(vm, this, NativeErrorConstructor::create(vm, this, m_nativeErrorStructure.get(), m_nativeErrorPrototypeStructure.get(), ASCIILiteral("RangeError")));
659     m_referenceErrorConstructor.initLater(
660         [] (const Initializer<NativeErrorConstructor>& init) {
661             init.set(NativeErrorConstructor::create(init.vm, init.owner, init.owner->m_nativeErrorStructure.get(), init.owner->m_nativeErrorPrototypeStructure.get(), ASCIILiteral("ReferenceError")));
662         });
663     m_syntaxErrorConstructor.initLater(
664         [] (const Initializer<NativeErrorConstructor>& init) {
665             init.set(NativeErrorConstructor::create(init.vm, init.owner, init.owner->m_nativeErrorStructure.get(), init.owner->m_nativeErrorPrototypeStructure.get(), ASCIILiteral("SyntaxError")));
666         });
667     m_typeErrorConstructor.set(vm, this, NativeErrorConstructor::create(vm, this, m_nativeErrorStructure.get(), m_nativeErrorPrototypeStructure.get(), ASCIILiteral("TypeError")));
668     m_URIErrorConstructor.initLater(
669         [] (const Initializer<NativeErrorConstructor>& init) {
670             init.set(NativeErrorConstructor::create(init.vm, init.owner, init.owner->m_nativeErrorStructure.get(), init.owner->m_nativeErrorPrototypeStructure.get(), ASCIILiteral("URIError")));
671         });
672
673     m_generatorFunctionPrototype.set(vm, this, GeneratorFunctionPrototype::create(vm, GeneratorFunctionPrototype::createStructure(vm, this, m_functionPrototype.get())));
674     GeneratorFunctionConstructor* generatorFunctionConstructor = GeneratorFunctionConstructor::create(vm, GeneratorFunctionConstructor::createStructure(vm, this, functionConstructor), m_generatorFunctionPrototype.get());
675     m_generatorFunctionPrototype->putDirectWithoutTransition(vm, vm.propertyNames->constructor, generatorFunctionConstructor, DontEnum | ReadOnly);
676     m_generatorFunctionStructure.set(vm, this, JSGeneratorFunction::createStructure(vm, this, m_generatorFunctionPrototype.get()));
677
678     m_generatorPrototype->putDirectWithoutTransition(vm, vm.propertyNames->constructor, m_generatorFunctionPrototype.get(), DontEnum | ReadOnly);
679     m_generatorFunctionPrototype->putDirectWithoutTransition(vm, vm.propertyNames->prototype, m_generatorPrototype.get(), DontEnum | ReadOnly);
680
681     m_asyncFunctionPrototype.set(vm, this, AsyncFunctionPrototype::create(vm, AsyncFunctionPrototype::createStructure(vm, this, m_functionPrototype.get())));
682     AsyncFunctionConstructor* asyncFunctionConstructor = AsyncFunctionConstructor::create(vm, AsyncFunctionConstructor::createStructure(vm, this, functionConstructor), m_asyncFunctionPrototype.get());
683     m_asyncFunctionPrototype->putDirectWithoutTransition(vm, vm.propertyNames->constructor, asyncFunctionConstructor, DontEnum | ReadOnly);
684     m_asyncFunctionStructure.set(vm, this, JSAsyncFunction::createStructure(vm, this, m_asyncFunctionPrototype.get()));
685
686     m_objectPrototype->putDirectWithoutTransition(vm, vm.propertyNames->constructor, objectConstructor, DontEnum);
687     m_functionPrototype->putDirectWithoutTransition(vm, vm.propertyNames->constructor, functionConstructor, DontEnum);
688     m_arrayPrototype->putDirectWithoutTransition(vm, vm.propertyNames->constructor, arrayConstructor, DontEnum);
689     m_regExpPrototype->putDirectWithoutTransition(vm, vm.propertyNames->constructor, m_regExpConstructor.get(), DontEnum);
690     
691     putDirectWithoutTransition(vm, vm.propertyNames->Object, objectConstructor, DontEnum);
692     putDirectWithoutTransition(vm, vm.propertyNames->Function, functionConstructor, DontEnum);
693     putDirectWithoutTransition(vm, vm.propertyNames->Array, arrayConstructor, DontEnum);
694     putDirectWithoutTransition(vm, vm.propertyNames->RegExp, m_regExpConstructor.get(), DontEnum);
695     putDirectWithoutTransition(vm, vm.propertyNames->RangeError, m_rangeErrorConstructor.get(), DontEnum);
696     putDirectWithoutTransition(vm, vm.propertyNames->TypeError, m_typeErrorConstructor.get(), DontEnum);
697
698     putDirectWithoutTransition(vm, vm.propertyNames->builtinNames().ObjectPrivateName(), objectConstructor, DontEnum | DontDelete | ReadOnly);
699     putDirectWithoutTransition(vm, vm.propertyNames->builtinNames().ArrayPrivateName(), arrayConstructor, DontEnum | DontDelete | ReadOnly);
700
701     putDirectWithoutTransition(vm, vm.propertyNames->ArrayBuffer, arrayBufferConstructor, DontEnum);
702     putDirectWithoutTransition(vm, vm.propertyNames->SharedArrayBuffer, sharedArrayBufferConstructor, DontEnum);
703
704 #define PUT_CONSTRUCTOR_FOR_SIMPLE_TYPE(capitalName, lowerName, properName, instanceType, jsName, prototypeBase) \
705 putDirectWithoutTransition(vm, vm.propertyNames-> jsName, lowerName ## Constructor, DontEnum); \
706
707     FOR_EACH_SIMPLE_BUILTIN_TYPE_WITH_CONSTRUCTOR(PUT_CONSTRUCTOR_FOR_SIMPLE_TYPE)
708
709 #undef PUT_CONSTRUCTOR_FOR_SIMPLE_TYPE
710     m_iteratorResultObjectStructure.set(vm, this, createIteratorResultObjectStructure(vm, *this));
711     
712     m_evalFunction.set(vm, this, JSFunction::create(vm, this, 1, vm.propertyNames->eval.string(), globalFuncEval));
713     putDirectWithoutTransition(vm, vm.propertyNames->eval, m_evalFunction.get(), DontEnum);
714     
715 #if ENABLE(INTL)
716     IntlObject* intl = IntlObject::create(vm, this, IntlObject::createStructure(vm, this, m_objectPrototype.get()));
717     putDirectWithoutTransition(vm, vm.propertyNames->Intl, intl, DontEnum);
718 #endif // ENABLE(INTL)
719     ReflectObject* reflectObject = ReflectObject::create(vm, this, ReflectObject::createStructure(vm, this, m_objectPrototype.get()));
720     putDirectWithoutTransition(vm, vm.propertyNames->Reflect, reflectObject, DontEnum);
721
722     m_moduleLoaderStructure.set(vm, this, JSModuleLoader::createStructure(vm, this, m_moduleLoaderPrototype.get()));
723     m_moduleLoader.set(vm, this, JSModuleLoader::create(globalExec(), vm, this, m_moduleLoaderStructure.get()));
724     if (Options::exposeInternalModuleLoader())
725         putDirectWithoutTransition(vm, vm.propertyNames->Loader, m_moduleLoader.get(), DontEnum);
726
727     JSFunction* builtinLog = JSFunction::create(vm, this, 1, vm.propertyNames->emptyIdentifier.string(), globalFuncBuiltinLog);
728
729     JSFunction* privateFuncAbs = JSFunction::create(vm, this, 0, String(), mathProtoFuncAbs, AbsIntrinsic);
730     JSFunction* privateFuncFloor = JSFunction::create(vm, this, 0, String(), mathProtoFuncFloor, FloorIntrinsic);
731     JSFunction* privateFuncTrunc = JSFunction::create(vm, this, 0, String(), mathProtoFuncTrunc, TruncIntrinsic);
732
733     JSFunction* privateFuncGetTemplateObject = JSFunction::create(vm, this, 0, String(), getTemplateObject);
734     JSFunction* privateFuncTypedArrayLength = JSFunction::create(vm, this, 0, String(), typedArrayViewPrivateFuncLength);
735     JSFunction* privateFuncTypedArrayGetOriginalConstructor = JSFunction::create(vm, this, 0, String(), typedArrayViewPrivateFuncGetOriginalConstructor);
736     JSFunction* privateFuncTypedArraySort = JSFunction::create(vm, this, 0, String(), typedArrayViewPrivateFuncSort);
737     JSFunction* privateFuncIsTypedArrayView = JSFunction::create(vm, this, 0, String(), typedArrayViewPrivateFuncIsTypedArrayView, IsTypedArrayViewIntrinsic);
738     JSFunction* privateFuncTypedArraySubarrayCreate = JSFunction::create(vm, this, 0, String(), typedArrayViewPrivateFuncSubarrayCreate);
739     JSFunction* privateFuncIsBoundFunction = JSFunction::create(vm, this, 0, String(), isBoundFunction);
740     JSFunction* privateFuncHasInstanceBoundFunction = JSFunction::create(vm, this, 0, String(), hasInstanceBoundFunction);
741     JSFunction* privateFuncInstanceOf = JSFunction::create(vm, this, 0, String(), objectPrivateFuncInstanceOf);
742     JSFunction* privateFuncThisTimeValue = JSFunction::create(vm, this, 0, String(), dateProtoFuncGetTime);
743     JSFunction* privateFuncThisNumberValue = JSFunction::create(vm, this, 0, String(), numberProtoFuncValueOf);
744     JSFunction* privateFuncIsArrayConstructor = JSFunction::create(vm, this, 0, String(), arrayConstructorPrivateFuncIsArrayConstructor);
745     JSFunction* privateFuncIsArraySlow = JSFunction::create(vm, this, 0, String(), arrayConstructorPrivateFuncIsArraySlow);
746     JSFunction* privateFuncConcatMemcpy = JSFunction::create(vm, this, 0, String(), arrayProtoPrivateFuncConcatMemcpy);
747     JSFunction* privateFuncAppendMemcpy = JSFunction::create(vm, this, 0, String(), arrayProtoPrivateFuncAppendMemcpy);
748     JSFunction* privateFuncConcatSlowPath = JSFunction::createBuiltinFunction(vm, arrayPrototypeConcatSlowPathCodeGenerator(vm), this);
749
750     JSObject* regExpProtoFlagsGetterObject = getGetterById(exec, m_regExpPrototype.get(), vm.propertyNames->flags);
751     ASSERT_UNUSED(catchScope, !catchScope.exception());
752     JSObject* regExpProtoGlobalGetterObject = getGetterById(exec, m_regExpPrototype.get(), vm.propertyNames->global);
753     ASSERT(!catchScope.exception());
754     m_regExpProtoGlobalGetter.set(vm, this, regExpProtoGlobalGetterObject);
755     JSObject* regExpProtoIgnoreCaseGetterObject = getGetterById(exec, m_regExpPrototype.get(), vm.propertyNames->ignoreCase);
756     ASSERT(!catchScope.exception());
757     JSObject* regExpProtoMultilineGetterObject = getGetterById(exec, m_regExpPrototype.get(), vm.propertyNames->multiline);
758     ASSERT(!catchScope.exception());
759     JSObject* regExpProtoSourceGetterObject = getGetterById(exec, m_regExpPrototype.get(), vm.propertyNames->source);
760     ASSERT(!catchScope.exception());
761     JSObject* regExpProtoStickyGetterObject = getGetterById(exec, m_regExpPrototype.get(), vm.propertyNames->sticky);
762     ASSERT(!catchScope.exception());
763     JSObject* regExpProtoUnicodeGetterObject = getGetterById(exec, m_regExpPrototype.get(), vm.propertyNames->unicode);
764     ASSERT(!catchScope.exception());
765     m_regExpProtoUnicodeGetter.set(vm, this, regExpProtoUnicodeGetterObject);
766     JSObject* builtinRegExpExec = asObject(m_regExpPrototype->getDirect(vm, vm.propertyNames->exec).asCell());
767     m_regExpProtoExec.set(vm, this, builtinRegExpExec);
768     JSObject* regExpSymbolReplace = asObject(m_regExpPrototype->getDirect(vm, vm.propertyNames->replaceSymbol).asCell());
769     m_regExpProtoSymbolReplace.set(vm, this, regExpSymbolReplace);
770
771 #define CREATE_PRIVATE_GLOBAL_FUNCTION(name, code) JSFunction* name ## PrivateFunction = JSFunction::createBuiltinFunction(vm, code ## CodeGenerator(vm), this);
772     JSC_FOREACH_BUILTIN_FUNCTION_PRIVATE_GLOBAL_NAME(CREATE_PRIVATE_GLOBAL_FUNCTION)
773 #undef CREATE_PRIVATE_GLOBAL_FUNCTION
774
775     JSObject* arrayIteratorPrototype = ArrayIteratorPrototype::create(vm, this, ArrayIteratorPrototype::createStructure(vm, this, m_iteratorPrototype.get()));
776     createArrayIteratorPrivateFunction->putDirect(vm, vm.propertyNames->prototype, arrayIteratorPrototype);
777
778     GlobalPropertyInfo staticGlobals[] = {
779 #define INIT_PRIVATE_GLOBAL(name, code) GlobalPropertyInfo(vm.propertyNames->builtinNames().name ## PrivateName(), name ## PrivateFunction, DontEnum | DontDelete | ReadOnly),
780         JSC_FOREACH_BUILTIN_FUNCTION_PRIVATE_GLOBAL_NAME(INIT_PRIVATE_GLOBAL)
781 #undef INIT_PRIVATE_GLOBAL
782         GlobalPropertyInfo(vm.propertyNames->NaN, jsNaN(), DontEnum | DontDelete | ReadOnly),
783         GlobalPropertyInfo(vm.propertyNames->Infinity, jsNumber(std::numeric_limits<double>::infinity()), DontEnum | DontDelete | ReadOnly),
784         GlobalPropertyInfo(vm.propertyNames->undefinedKeyword, jsUndefined(), DontEnum | DontDelete | ReadOnly),
785         GlobalPropertyInfo(vm.propertyNames->builtinNames().ownEnumerablePropertyKeysPrivateName(), JSFunction::create(vm, this, 0, String(), ownEnumerablePropertyKeys), DontEnum | DontDelete | ReadOnly),
786         GlobalPropertyInfo(vm.propertyNames->builtinNames().getTemplateObjectPrivateName(), privateFuncGetTemplateObject, DontEnum | DontDelete | ReadOnly),
787         GlobalPropertyInfo(vm.propertyNames->builtinNames().enqueueJobPrivateName(), JSFunction::create(vm, this, 0, String(), enqueueJob), DontEnum | DontDelete | ReadOnly),
788         GlobalPropertyInfo(vm.propertyNames->builtinNames().ErrorPrivateName(), m_errorConstructor.get(), DontEnum | DontDelete | ReadOnly),
789         GlobalPropertyInfo(vm.propertyNames->builtinNames().RangeErrorPrivateName(), m_rangeErrorConstructor.get(), DontEnum | DontDelete | ReadOnly),
790         GlobalPropertyInfo(vm.propertyNames->builtinNames().TypeErrorPrivateName(), m_typeErrorConstructor.get(), DontEnum | DontDelete | ReadOnly),
791         GlobalPropertyInfo(vm.propertyNames->builtinNames().typedArrayLengthPrivateName(), privateFuncTypedArrayLength, DontEnum | DontDelete | ReadOnly),
792         GlobalPropertyInfo(vm.propertyNames->builtinNames().typedArrayGetOriginalConstructorPrivateName(), privateFuncTypedArrayGetOriginalConstructor, DontEnum | DontDelete | ReadOnly),
793         GlobalPropertyInfo(vm.propertyNames->builtinNames().typedArraySortPrivateName(), privateFuncTypedArraySort, DontEnum | DontDelete | ReadOnly),
794         GlobalPropertyInfo(vm.propertyNames->builtinNames().isTypedArrayViewPrivateName(), privateFuncIsTypedArrayView, DontEnum | DontDelete | ReadOnly),
795         GlobalPropertyInfo(vm.propertyNames->builtinNames().typedArraySubarrayCreatePrivateName(), privateFuncTypedArraySubarrayCreate, DontEnum | DontDelete | ReadOnly),
796         GlobalPropertyInfo(vm.propertyNames->builtinNames().isBoundFunctionPrivateName(), privateFuncIsBoundFunction, DontEnum | DontDelete | ReadOnly),
797         GlobalPropertyInfo(vm.propertyNames->builtinNames().hasInstanceBoundFunctionPrivateName(), privateFuncHasInstanceBoundFunction, DontEnum | DontDelete | ReadOnly),
798         GlobalPropertyInfo(vm.propertyNames->builtinNames().instanceOfPrivateName(), privateFuncInstanceOf, DontEnum | DontDelete | ReadOnly),
799         GlobalPropertyInfo(vm.propertyNames->builtinNames().BuiltinLogPrivateName(), builtinLog, DontEnum | DontDelete | ReadOnly),
800         GlobalPropertyInfo(vm.propertyNames->builtinNames().NumberPrivateName(), numberConstructor, DontEnum | DontDelete | ReadOnly),
801         GlobalPropertyInfo(vm.propertyNames->builtinNames().RegExpPrivateName(), m_regExpConstructor.get(), DontEnum | DontDelete | ReadOnly),
802         GlobalPropertyInfo(vm.propertyNames->builtinNames().StringPrivateName(), stringConstructor, DontEnum | DontDelete | ReadOnly),
803         GlobalPropertyInfo(vm.propertyNames->builtinNames().absPrivateName(), privateFuncAbs, DontEnum | DontDelete | ReadOnly),
804         GlobalPropertyInfo(vm.propertyNames->builtinNames().floorPrivateName(), privateFuncFloor, DontEnum | DontDelete | ReadOnly),
805         GlobalPropertyInfo(vm.propertyNames->builtinNames().truncPrivateName(), privateFuncTrunc, DontEnum | DontDelete | ReadOnly),
806         GlobalPropertyInfo(vm.propertyNames->builtinNames().PromisePrivateName(), promiseConstructor, DontEnum | DontDelete | ReadOnly),
807         GlobalPropertyInfo(vm.propertyNames->builtinNames().ReflectPrivateName(), reflectObject, DontEnum | DontDelete | ReadOnly),
808         GlobalPropertyInfo(vm.propertyNames->builtinNames().InternalPromisePrivateName(), internalPromiseConstructor, DontEnum | DontDelete | ReadOnly),
809
810         GlobalPropertyInfo(vm.propertyNames->builtinNames().repeatCharacterPrivateName(), JSFunction::create(vm, this, 2, String(), stringProtoFuncRepeatCharacter), DontEnum | DontDelete | ReadOnly),
811         GlobalPropertyInfo(vm.propertyNames->builtinNames().SetIteratorPrivateName(), JSFunction::create(vm, this, 1, String(), privateFuncSetIterator), DontEnum | DontDelete | ReadOnly),
812         GlobalPropertyInfo(vm.propertyNames->builtinNames().setIteratorNextPrivateName(), JSFunction::create(vm, this, 0, String(), privateFuncSetIteratorNext), DontEnum | DontDelete | ReadOnly),
813         GlobalPropertyInfo(vm.propertyNames->builtinNames().isArrayPrivateName(), arrayConstructor->getDirect(vm, vm.propertyNames->isArray), DontEnum | DontDelete | ReadOnly),
814         GlobalPropertyInfo(vm.propertyNames->builtinNames().isArraySlowPrivateName(), privateFuncIsArraySlow, DontEnum | DontDelete | ReadOnly),
815         GlobalPropertyInfo(vm.propertyNames->builtinNames().isArrayConstructorPrivateName(), privateFuncIsArrayConstructor, DontEnum | DontDelete | ReadOnly),
816         GlobalPropertyInfo(vm.propertyNames->builtinNames().concatMemcpyPrivateName(), privateFuncConcatMemcpy, DontEnum | DontDelete | ReadOnly),
817         GlobalPropertyInfo(vm.propertyNames->builtinNames().appendMemcpyPrivateName(), privateFuncAppendMemcpy, DontEnum | DontDelete | ReadOnly),
818         GlobalPropertyInfo(vm.propertyNames->builtinNames().concatSlowPathPrivateName(), privateFuncConcatSlowPath, DontEnum | DontDelete | ReadOnly),
819         GlobalPropertyInfo(vm.propertyNames->builtinNames().MapIteratorPrivateName(), JSFunction::create(vm, this, 1, String(), privateFuncMapIterator), DontEnum | DontDelete | ReadOnly),
820         GlobalPropertyInfo(vm.propertyNames->builtinNames().mapIteratorNextPrivateName(), JSFunction::create(vm, this, 0, String(), privateFuncMapIteratorNext), DontEnum | DontDelete | ReadOnly),
821
822         GlobalPropertyInfo(vm.propertyNames->builtinNames().InspectorInstrumentationPrivateName(), InspectorInstrumentationObject::create(vm, this, InspectorInstrumentationObject::createStructure(vm, this, m_objectPrototype.get())), DontEnum | DontDelete | ReadOnly),
823         GlobalPropertyInfo(vm.propertyNames->builtinNames().MapPrivateName(), mapConstructor, DontEnum | DontDelete | ReadOnly),
824         GlobalPropertyInfo(vm.propertyNames->builtinNames().thisTimeValuePrivateName(), privateFuncThisTimeValue, DontEnum | DontDelete | ReadOnly),
825         GlobalPropertyInfo(vm.propertyNames->builtinNames().thisNumberValuePrivateName(), privateFuncThisNumberValue, DontEnum | DontDelete | ReadOnly),
826 #if ENABLE(INTL)
827         GlobalPropertyInfo(vm.propertyNames->builtinNames().CollatorPrivateName(), intl->getDirect(vm, vm.propertyNames->Collator), DontEnum | DontDelete | ReadOnly),
828         GlobalPropertyInfo(vm.propertyNames->builtinNames().DateTimeFormatPrivateName(), intl->getDirect(vm, vm.propertyNames->DateTimeFormat), DontEnum | DontDelete | ReadOnly),
829         GlobalPropertyInfo(vm.propertyNames->builtinNames().NumberFormatPrivateName(), intl->getDirect(vm, vm.propertyNames->NumberFormat), DontEnum | DontDelete | ReadOnly),
830 #endif // ENABLE(INTL)
831
832         GlobalPropertyInfo(vm.propertyNames->builtinNames().isConstructorPrivateName(), JSFunction::create(vm, this, 1, String(), esSpecIsConstructor, NoIntrinsic), DontEnum | DontDelete | ReadOnly),
833
834         GlobalPropertyInfo(vm.propertyNames->builtinNames().regExpProtoFlagsGetterPrivateName(), regExpProtoFlagsGetterObject, DontEnum | DontDelete | ReadOnly),
835         GlobalPropertyInfo(vm.propertyNames->builtinNames().regExpProtoGlobalGetterPrivateName(), regExpProtoGlobalGetterObject, DontEnum | DontDelete | ReadOnly),
836         GlobalPropertyInfo(vm.propertyNames->builtinNames().regExpProtoIgnoreCaseGetterPrivateName(), regExpProtoIgnoreCaseGetterObject, DontEnum | DontDelete | ReadOnly),
837         GlobalPropertyInfo(vm.propertyNames->builtinNames().regExpProtoMultilineGetterPrivateName(), regExpProtoMultilineGetterObject, DontEnum | DontDelete | ReadOnly),
838         GlobalPropertyInfo(vm.propertyNames->builtinNames().regExpProtoSourceGetterPrivateName(), regExpProtoSourceGetterObject, DontEnum | DontDelete | ReadOnly),
839         GlobalPropertyInfo(vm.propertyNames->builtinNames().regExpProtoStickyGetterPrivateName(), regExpProtoStickyGetterObject, DontEnum | DontDelete | ReadOnly),
840         GlobalPropertyInfo(vm.propertyNames->builtinNames().regExpProtoUnicodeGetterPrivateName(), regExpProtoUnicodeGetterObject, DontEnum | DontDelete | ReadOnly),
841
842         // RegExp.prototype helpers.
843         GlobalPropertyInfo(vm.propertyNames->builtinNames().regExpBuiltinExecPrivateName(), builtinRegExpExec, DontEnum | DontDelete | ReadOnly),
844         GlobalPropertyInfo(vm.propertyNames->builtinNames().regExpCreatePrivateName(), JSFunction::create(vm, this, 2, String(), esSpecRegExpCreate, NoIntrinsic), DontEnum | DontDelete | ReadOnly),
845         GlobalPropertyInfo(vm.propertyNames->builtinNames().regExpMatchFastPrivateName(), JSFunction::create(vm, this, 1, String(), regExpProtoFuncMatchFast), DontEnum | DontDelete | ReadOnly),
846         GlobalPropertyInfo(vm.propertyNames->builtinNames().regExpSearchFastPrivateName(), JSFunction::create(vm, this, 1, String(), regExpProtoFuncSearchFast), DontEnum | DontDelete | ReadOnly),
847         GlobalPropertyInfo(vm.propertyNames->builtinNames().regExpSplitFastPrivateName(), JSFunction::create(vm, this, 2, String(), regExpProtoFuncSplitFast), DontEnum | DontDelete | ReadOnly),
848         GlobalPropertyInfo(vm.propertyNames->builtinNames().regExpPrototypeSymbolReplacePrivateName(), m_regExpPrototype->getDirect(vm, vm.propertyNames->replaceSymbol), DontEnum | DontDelete | ReadOnly),
849         GlobalPropertyInfo(vm.propertyNames->builtinNames().regExpTestFastPrivateName(), JSFunction::create(vm, this, 1, String(), regExpProtoFuncTestFast, RegExpTestFastIntrinsic), DontEnum | DontDelete | ReadOnly),
850
851         // String.prototype helpers.
852         GlobalPropertyInfo(vm.propertyNames->builtinNames().stringIncludesInternalPrivateName(), JSFunction::create(vm, this, 1, String(), builtinStringIncludesInternal), DontEnum | DontDelete | ReadOnly),
853         GlobalPropertyInfo(vm.propertyNames->builtinNames().stringSplitFastPrivateName(), JSFunction::create(vm, this, 2, String(), stringProtoFuncSplitFast), DontEnum | DontDelete | ReadOnly),
854         GlobalPropertyInfo(vm.propertyNames->builtinNames().stringSubstrInternalPrivateName(), JSFunction::create(vm, this, 2, String(), builtinStringSubstrInternal), DontEnum | DontDelete | ReadOnly),
855
856         // Function prototype helpers.
857         GlobalPropertyInfo(vm.propertyNames->builtinNames().makeBoundFunctionPrivateName(), JSFunction::create(vm, this, 5, String(), makeBoundFunction), DontEnum | DontDelete | ReadOnly),
858         GlobalPropertyInfo(vm.propertyNames->builtinNames().hasOwnLengthPropertyPrivateName(), JSFunction::create(vm, this, 1, String(), hasOwnLengthProperty), DontEnum | DontDelete | ReadOnly),
859     };
860     addStaticGlobals(staticGlobals, WTF_ARRAY_LENGTH(staticGlobals));
861     
862     m_specialPointers[Special::CallFunction] = m_callFunction.get();
863     m_specialPointers[Special::ApplyFunction] = m_applyFunction.get();
864     m_specialPointers[Special::ObjectConstructor] = objectConstructor;
865     m_specialPointers[Special::ArrayConstructor] = arrayConstructor;
866
867     m_linkTimeConstants[static_cast<unsigned>(LinkTimeConstant::ThrowTypeErrorFunction)] = m_throwTypeErrorFunction.get();
868
869     if (UNLIKELY(Options::useDollarVM())) {
870         JSDollarVMPrototype* dollarVMPrototype = JSDollarVMPrototype::create(vm, this, JSDollarVMPrototype::createStructure(vm, this, m_objectPrototype.get()));
871         m_dollarVMStructure.set(vm, this, JSDollarVM::createStructure(vm, this, dollarVMPrototype));
872         JSDollarVM* dollarVM = JSDollarVM::create(vm, m_dollarVMStructure.get());
873
874         GlobalPropertyInfo extraStaticGlobals[] = {
875             GlobalPropertyInfo(vm.propertyNames->builtinNames().dollarVMPrivateName(), dollarVM, DontEnum | DontDelete | ReadOnly),
876         };
877         addStaticGlobals(extraStaticGlobals, WTF_ARRAY_LENGTH(extraStaticGlobals));
878
879         putDirectWithoutTransition(vm, Identifier::fromString(exec, "$vm"), dollarVM, DontEnum);
880     }
881
882 #if ENABLE(WEBASSEMBLY)
883     if (Options::useWebAssembly()) {
884         auto* webAssemblyPrototype = WebAssemblyPrototype::create(vm, this, WebAssemblyPrototype::createStructure(vm, this, m_objectPrototype.get()));
885         m_webAssemblyStructure.set(vm, this, JSWebAssembly::createStructure(vm, this, webAssemblyPrototype));
886         m_webAssemblyModuleRecordStructure.set(vm, this, WebAssemblyModuleRecord::createStructure(vm, this, m_objectPrototype.get()));
887         m_webAssemblyFunctionStructure.set(vm, this, WebAssemblyFunction::createStructure(vm, this, m_objectPrototype.get()));
888         auto* webAssembly = JSWebAssembly::create(vm, this, m_webAssemblyStructure.get());
889         putDirectWithoutTransition(vm, Identifier::fromString(exec, "WebAssembly"), webAssembly, DontEnum);
890
891 #define CREATE_WEBASSEMBLY_CONSTRUCTOR(capitalName, lowerName, properName, instanceType, jsName, prototypeBase) do { \
892         typedef capitalName ## Prototype Prototype; \
893         typedef capitalName ## Constructor Constructor; \
894         typedef JS ## capitalName JSObj; \
895         auto* base = m_ ## prototypeBase ## Prototype.get(); \
896         auto* prototype = Prototype::create(vm, this, Prototype::createStructure(vm, this, base)); \
897         auto* structure = JSObj::createStructure(vm, this, prototype); \
898         auto* constructor = Constructor::create(vm, Constructor::createStructure(vm, this, this->functionPrototype()), prototype); \
899         prototype->putDirectWithoutTransition(vm, vm.propertyNames->constructor, constructor, DontEnum); \
900         m_ ## lowerName ## Prototype.set(vm, this, prototype); \
901         m_ ## properName ## Structure.set(vm, this, structure); \
902         webAssembly->putDirectWithoutTransition(vm, Identifier::fromString(this->globalExec(), #jsName), constructor, DontEnum); \
903     } while (0);
904
905         FOR_EACH_WEBASSEMBLY_CONSTRUCTOR_TYPE(CREATE_WEBASSEMBLY_CONSTRUCTOR)
906
907 #undef CREATE_WEBASSEMBLY_CONSTRUCTOR
908     }
909 #endif // ENABLE(WEBASSEMBLY)
910
911     {
912         ExecState* exec = globalExec();
913
914         auto setupAdaptiveWatchpoint = [&] (JSObject* base, const Identifier& ident) -> ObjectPropertyCondition {
915             // Performing these gets should not throw.
916             PropertySlot slot(base, PropertySlot::InternalMethodType::Get);
917             bool result = base->getOwnPropertySlot(base, exec, ident, slot);
918             ASSERT_UNUSED(result, result);
919             ASSERT(!catchScope.exception());
920             RELEASE_ASSERT(slot.isCacheableValue());
921             JSValue functionValue = slot.getValue(exec, ident);
922             ASSERT(!catchScope.exception());
923             ASSERT(jsDynamicCast<JSFunction*>(functionValue));
924
925             ObjectPropertyCondition condition = generateConditionForSelfEquivalence(m_vm, nullptr, base, ident.impl());
926             RELEASE_ASSERT(condition.requiredValue() == functionValue);
927
928             bool isWatchable = condition.isWatchable(PropertyCondition::EnsureWatchability);
929             RELEASE_ASSERT(isWatchable); // We allow this to install the necessary watchpoints.
930
931             return condition;
932         };
933
934         {
935             ObjectPropertyCondition condition = setupAdaptiveWatchpoint(arrayIteratorPrototype, m_vm.propertyNames->next);
936             m_arrayIteratorPrototypeNext = std::make_unique<ArrayIteratorAdaptiveWatchpoint>(condition, this);
937             m_arrayIteratorPrototypeNext->install();
938         }
939
940         {
941             ArrayPrototype* arrayPrototype = this->arrayPrototype();
942             ObjectPropertyCondition condition = setupAdaptiveWatchpoint(arrayPrototype, m_vm.propertyNames->iteratorSymbol);
943             m_arrayPrototypeSymbolIteratorWatchpoint = std::make_unique<ArrayIteratorAdaptiveWatchpoint>(condition, this);
944             m_arrayPrototypeSymbolIteratorWatchpoint->install();
945         }
946     }
947
948     resetPrototype(vm, getPrototypeDirect());
949 }
950
951 bool JSGlobalObject::put(JSCell* cell, ExecState* exec, PropertyName propertyName, JSValue value, PutPropertySlot& slot)
952 {
953     VM& vm = exec->vm();
954     auto scope = DECLARE_THROW_SCOPE(vm);
955     JSGlobalObject* thisObject = jsCast<JSGlobalObject*>(cell);
956     ASSERT(!Heap::heap(value) || Heap::heap(value) == Heap::heap(thisObject));
957
958     if (UNLIKELY(isThisValueAltered(slot, thisObject))) {
959         scope.release();
960         return ordinarySetSlow(exec, thisObject, propertyName, value, slot.thisValue(), slot.isStrictMode());
961     }
962
963     bool shouldThrowReadOnlyError = slot.isStrictMode();
964     bool ignoreReadOnlyErrors = false;
965     bool putResult = false;
966     bool done = symbolTablePutTouchWatchpointSet(thisObject, exec, propertyName, value, shouldThrowReadOnlyError, ignoreReadOnlyErrors, putResult);
967     ASSERT((!!scope.exception() == (done && !putResult)) || !shouldThrowReadOnlyError);
968     if (done)
969         return putResult;
970     scope.release();
971     return Base::put(thisObject, exec, propertyName, value, slot);
972 }
973
974 bool JSGlobalObject::defineOwnProperty(JSObject* object, ExecState* exec, PropertyName propertyName, const PropertyDescriptor& descriptor, bool shouldThrow)
975 {
976     JSGlobalObject* thisObject = jsCast<JSGlobalObject*>(object);
977     PropertySlot slot(thisObject, PropertySlot::InternalMethodType::VMInquiry);
978     // silently ignore attempts to add accessors aliasing vars.
979     if (descriptor.isAccessorDescriptor() && symbolTableGet(thisObject, propertyName, slot))
980         return false;
981     return Base::defineOwnProperty(thisObject, exec, propertyName, descriptor, shouldThrow);
982 }
983
984 void JSGlobalObject::addGlobalVar(const Identifier& ident)
985 {
986     ConcurrentJSLocker locker(symbolTable()->m_lock);
987     SymbolTableEntry entry = symbolTable()->get(locker, ident.impl());
988     if (!entry.isNull())
989         return;
990     
991     ScopeOffset offset = symbolTable()->takeNextScopeOffset(locker);
992     SymbolTableEntry newEntry(VarOffset(offset), 0);
993     newEntry.prepareToWatch();
994     symbolTable()->add(locker, ident.impl(), WTFMove(newEntry));
995     
996     ScopeOffset offsetForAssert = addVariables(1, jsUndefined());
997     RELEASE_ASSERT(offsetForAssert == offset);
998 }
999
1000 void JSGlobalObject::addFunction(ExecState* exec, const Identifier& propertyName)
1001 {
1002     VM& vm = exec->vm();
1003     VM::DeletePropertyModeScope scope(vm, VM::DeletePropertyMode::IgnoreConfigurable);
1004     methodTable(vm)->deleteProperty(this, exec, propertyName);
1005     addGlobalVar(propertyName);
1006 }
1007
1008 void JSGlobalObject::setGlobalScopeExtension(JSScope* scope)
1009 {
1010     m_globalScopeExtension.set(vm(), this, scope);
1011 }
1012
1013 void JSGlobalObject::clearGlobalScopeExtension()
1014 {
1015     m_globalScopeExtension.clear();
1016 }
1017
1018 static inline JSObject* lastInPrototypeChain(JSObject* object)
1019 {
1020     JSObject* o = object;
1021     while (o->getPrototypeDirect().isObject())
1022         o = asObject(o->getPrototypeDirect());
1023     return o;
1024 }
1025
1026 // Private namespace for helpers for JSGlobalObject::haveABadTime()
1027 namespace {
1028
1029 class ObjectsWithBrokenIndexingFinder : public MarkedBlock::VoidFunctor {
1030 public:
1031     ObjectsWithBrokenIndexingFinder(MarkedArgumentBuffer&, JSGlobalObject*);
1032     IterationStatus operator()(HeapCell*, HeapCell::Kind) const;
1033
1034 private:
1035     void visit(JSCell*);
1036
1037     MarkedArgumentBuffer& m_foundObjects;
1038     JSGlobalObject* m_globalObject;
1039 };
1040
1041 ObjectsWithBrokenIndexingFinder::ObjectsWithBrokenIndexingFinder(
1042     MarkedArgumentBuffer& foundObjects, JSGlobalObject* globalObject)
1043     : m_foundObjects(foundObjects)
1044     , m_globalObject(globalObject)
1045 {
1046 }
1047
1048 inline bool hasBrokenIndexing(JSObject* object)
1049 {
1050     // This will change if we have more indexing types.
1051     IndexingType type = object->indexingType();
1052     // This could be made obviously more efficient, but isn't made so right now, because
1053     // we expect this to be an unlikely slow path anyway.
1054     return hasUndecided(type) || hasInt32(type) || hasDouble(type) || hasContiguous(type) || hasArrayStorage(type);
1055 }
1056
1057 inline void ObjectsWithBrokenIndexingFinder::visit(JSCell* cell)
1058 {
1059     if (!cell->isObject())
1060         return;
1061     
1062     JSObject* object = asObject(cell);
1063
1064     // Run this filter first, since it's cheap, and ought to filter out a lot of objects.
1065     if (!hasBrokenIndexing(object))
1066         return;
1067     
1068     // We only want to have a bad time in the affected global object, not in the entire
1069     // VM. But we have to be careful, since there may be objects that claim to belong to
1070     // a different global object that have prototypes from our global object.
1071     bool foundGlobalObject = false;
1072     for (JSObject* current = object; ;) {
1073         if (current->globalObject() == m_globalObject) {
1074             foundGlobalObject = true;
1075             break;
1076         }
1077         
1078         JSValue prototypeValue = current->getPrototypeDirect();
1079         if (prototypeValue.isNull())
1080             break;
1081         current = asObject(prototypeValue);
1082     }
1083     if (!foundGlobalObject)
1084         return;
1085     
1086     m_foundObjects.append(object);
1087 }
1088
1089 IterationStatus ObjectsWithBrokenIndexingFinder::operator()(HeapCell* cell, HeapCell::Kind kind) const
1090 {
1091     if (kind == HeapCell::JSCell) {
1092         // FIXME: This const_cast exists because this isn't a C++ lambda.
1093         // https://bugs.webkit.org/show_bug.cgi?id=159644
1094         const_cast<ObjectsWithBrokenIndexingFinder*>(this)->visit(static_cast<JSCell*>(cell));
1095     }
1096     return IterationStatus::Continue;
1097 }
1098
1099 } // end private namespace for helpers for JSGlobalObject::haveABadTime()
1100
1101 void JSGlobalObject::haveABadTime(VM& vm)
1102 {
1103     ASSERT(&vm == &this->vm());
1104     
1105     if (isHavingABadTime())
1106         return;
1107     
1108     // Make sure that all allocations or indexed storage transitions that are inlining
1109     // the assumption that it's safe to transition to a non-SlowPut array storage don't
1110     // do so anymore.
1111     m_havingABadTimeWatchpoint->fireAll(vm, "Having a bad time");
1112     ASSERT(isHavingABadTime()); // The watchpoint is what tells us that we're having a bad time.
1113     
1114     // Make sure that all JSArray allocations that load the appropriate structure from
1115     // this object now load a structure that uses SlowPut.
1116     for (unsigned i = 0; i < NumberOfIndexingShapes; ++i)
1117         m_arrayStructureForIndexingShapeDuringAllocation[i].set(vm, this, originalArrayStructureForIndexingType(ArrayWithSlowPutArrayStorage));
1118
1119     // Same for any special array structures.
1120     Structure* slowPutStructure;
1121     slowPutStructure = createRegExpMatchesArraySlowPutStructure(vm, this);
1122     m_regExpMatchesArrayStructure.set(vm, this, slowPutStructure);
1123     slowPutStructure = ClonedArguments::createSlowPutStructure(vm, this, m_objectPrototype.get());
1124     m_clonedArgumentsStructure.set(vm, this, slowPutStructure);
1125
1126     // Make sure that all objects that have indexed storage switch to the slow kind of
1127     // indexed storage.
1128     MarkedArgumentBuffer foundObjects; // Use MarkedArgumentBuffer because switchToSlowPutArrayStorage() may GC.
1129     ObjectsWithBrokenIndexingFinder finder(foundObjects, this);
1130     {
1131         HeapIterationScope iterationScope(vm.heap);
1132         vm.heap.objectSpace().forEachLiveCell(iterationScope, finder);
1133     }
1134     while (!foundObjects.isEmpty()) {
1135         JSObject* object = asObject(foundObjects.last());
1136         foundObjects.removeLast();
1137         ASSERT(hasBrokenIndexing(object));
1138         object->switchToSlowPutArrayStorage(vm);
1139     }
1140 }
1141
1142 // Set prototype, and also insert the object prototype at the end of the chain.
1143 void JSGlobalObject::resetPrototype(VM& vm, JSValue prototype)
1144 {
1145     setPrototypeDirect(vm, prototype);
1146
1147     JSObject* oldLastInPrototypeChain = lastInPrototypeChain(this);
1148     JSObject* objectPrototype = m_objectPrototype.get();
1149     if (oldLastInPrototypeChain != objectPrototype)
1150         oldLastInPrototypeChain->setPrototypeDirect(vm, objectPrototype);
1151
1152     // Whenever we change the prototype of the global object, we need to create a new JSProxy with the correct prototype.
1153     setGlobalThis(vm, JSProxy::create(vm, JSProxy::createStructure(vm, this, prototype, PureForwardingProxyType), this));
1154 }
1155
1156 void JSGlobalObject::visitChildren(JSCell* cell, SlotVisitor& visitor)
1157
1158     JSGlobalObject* thisObject = jsCast<JSGlobalObject*>(cell);
1159     ASSERT_GC_OBJECT_INHERITS(thisObject, info());
1160     Base::visitChildren(thisObject, visitor);
1161
1162     visitor.append(thisObject->m_globalThis);
1163
1164     visitor.append(thisObject->m_globalLexicalEnvironment);
1165     visitor.append(thisObject->m_globalScopeExtension);
1166     visitor.append(thisObject->m_globalCallee);
1167     visitor.append(thisObject->m_regExpConstructor);
1168     visitor.append(thisObject->m_errorConstructor);
1169     visitor.append(thisObject->m_nativeErrorPrototypeStructure);
1170     visitor.append(thisObject->m_nativeErrorStructure);
1171     thisObject->m_evalErrorConstructor.visit(visitor);
1172     visitor.append(thisObject->m_rangeErrorConstructor);
1173     thisObject->m_referenceErrorConstructor.visit(visitor);
1174     thisObject->m_syntaxErrorConstructor.visit(visitor);
1175     visitor.append(thisObject->m_typeErrorConstructor);
1176     thisObject->m_URIErrorConstructor.visit(visitor);
1177     visitor.append(thisObject->m_objectConstructor);
1178     visitor.append(thisObject->m_promiseConstructor);
1179
1180     visitor.append(thisObject->m_nullGetterFunction);
1181     visitor.append(thisObject->m_nullSetterFunction);
1182
1183     visitor.append(thisObject->m_parseIntFunction);
1184     visitor.append(thisObject->m_evalFunction);
1185     visitor.append(thisObject->m_callFunction);
1186     visitor.append(thisObject->m_applyFunction);
1187     visitor.append(thisObject->m_throwTypeErrorFunction);
1188     thisObject->m_arrayProtoToStringFunction.visit(visitor);
1189     thisObject->m_arrayProtoValuesFunction.visit(visitor);
1190     thisObject->m_initializePromiseFunction.visit(visitor);
1191     thisObject->m_iteratorProtocolFunction.visit(visitor);
1192     visitor.append(thisObject->m_newPromiseCapabilityFunction);
1193     visitor.append(thisObject->m_functionProtoHasInstanceSymbolFunction);
1194     thisObject->m_throwTypeErrorGetterSetter.visit(visitor);
1195     visitor.append(thisObject->m_throwTypeErrorArgumentsCalleeAndCallerGetterSetter);
1196     visitor.append(thisObject->m_moduleLoader);
1197
1198     visitor.append(thisObject->m_objectPrototype);
1199     visitor.append(thisObject->m_functionPrototype);
1200     visitor.append(thisObject->m_arrayPrototype);
1201     visitor.append(thisObject->m_errorPrototype);
1202     visitor.append(thisObject->m_iteratorPrototype);
1203     visitor.append(thisObject->m_generatorFunctionPrototype);
1204     visitor.append(thisObject->m_generatorPrototype);
1205     visitor.append(thisObject->m_asyncFunctionPrototype);
1206     visitor.append(thisObject->m_moduleLoaderPrototype);
1207
1208     thisObject->m_debuggerScopeStructure.visit(visitor);
1209     thisObject->m_withScopeStructure.visit(visitor);
1210     visitor.append(thisObject->m_strictEvalActivationStructure);
1211     visitor.append(thisObject->m_lexicalEnvironmentStructure);
1212     thisObject->m_moduleEnvironmentStructure.visit(visitor);
1213     visitor.append(thisObject->m_directArgumentsStructure);
1214     visitor.append(thisObject->m_scopedArgumentsStructure);
1215     visitor.append(thisObject->m_clonedArgumentsStructure);
1216     visitor.append(thisObject->m_objectStructureForObjectConstructor);
1217     for (unsigned i = 0; i < NumberOfIndexingShapes; ++i)
1218         visitor.append(thisObject->m_originalArrayStructureForIndexingShape[i]);
1219     for (unsigned i = 0; i < NumberOfIndexingShapes; ++i)
1220         visitor.append(thisObject->m_arrayStructureForIndexingShapeDuringAllocation[i]);
1221     thisObject->m_callbackConstructorStructure.visit(visitor);
1222     thisObject->m_callbackFunctionStructure.visit(visitor);
1223     thisObject->m_callbackObjectStructure.visit(visitor);
1224     visitor.append(thisObject->m_propertyNameIteratorStructure);
1225 #if JSC_OBJC_API_ENABLED
1226     thisObject->m_objcCallbackFunctionStructure.visit(visitor);
1227     thisObject->m_objcWrapperObjectStructure.visit(visitor);
1228 #endif
1229     thisObject->m_nullPrototypeObjectStructure.visit(visitor);
1230     visitor.append(thisObject->m_errorStructure);
1231     visitor.append(thisObject->m_calleeStructure);
1232     visitor.append(thisObject->m_functionStructure);
1233     thisObject->m_customGetterSetterFunctionStructure.visit(visitor);
1234     thisObject->m_boundFunctionStructure.visit(visitor);
1235     visitor.append(thisObject->m_getterSetterStructure);
1236     thisObject->m_nativeStdFunctionStructure.visit(visitor);
1237     thisObject->m_namedFunctionStructure.visit(visitor);
1238     visitor.append(thisObject->m_symbolObjectStructure);
1239     visitor.append(thisObject->m_regExpStructure);
1240     visitor.append(thisObject->m_generatorFunctionStructure);
1241     visitor.append(thisObject->m_asyncFunctionStructure);
1242     visitor.append(thisObject->m_iteratorResultObjectStructure);
1243     visitor.append(thisObject->m_regExpMatchesArrayStructure);
1244     visitor.append(thisObject->m_moduleRecordStructure);
1245     visitor.append(thisObject->m_moduleNamespaceObjectStructure);
1246     visitor.append(thisObject->m_dollarVMStructure);
1247     visitor.append(thisObject->m_proxyObjectStructure);
1248     visitor.append(thisObject->m_callableProxyObjectStructure);
1249     visitor.append(thisObject->m_proxyRevokeStructure);
1250     visitor.append(thisObject->m_moduleLoaderStructure);
1251     
1252     visitor.append(thisObject->m_arrayBufferPrototype);
1253     visitor.append(thisObject->m_arrayBufferStructure);
1254     visitor.append(thisObject->m_sharedArrayBufferPrototype);
1255     visitor.append(thisObject->m_sharedArrayBufferStructure);
1256
1257 #define VISIT_SIMPLE_TYPE(CapitalName, lowerName, properName, instanceType, jsName, prototypeBase) \
1258     visitor.append(thisObject->m_ ## lowerName ## Prototype); \
1259     visitor.append(thisObject->m_ ## properName ## Structure); \
1260
1261     FOR_EACH_SIMPLE_BUILTIN_TYPE(VISIT_SIMPLE_TYPE)
1262     
1263 #if ENABLE(WEBASSEMBLY)
1264     visitor.append(thisObject->m_webAssemblyStructure);
1265     visitor.append(thisObject->m_webAssemblyModuleRecordStructure);
1266     visitor.append(thisObject->m_webAssemblyFunctionStructure);
1267     FOR_EACH_WEBASSEMBLY_CONSTRUCTOR_TYPE(VISIT_SIMPLE_TYPE)
1268 #endif // ENABLE(WEBASSEMBLY)
1269
1270 #undef VISIT_SIMPLE_TYPE
1271
1272 #define VISIT_LAZY_TYPE(CapitalName, lowerName, properName, instanceType, jsName, prototypeBase) \
1273     thisObject->m_ ## properName ## Structure.visit(visitor);
1274     
1275     FOR_EACH_LAZY_BUILTIN_TYPE(VISIT_LAZY_TYPE)
1276     FOR_EACH_BUILTIN_DERIVED_ITERATOR_TYPE(VISIT_LAZY_TYPE)
1277
1278 #undef VISIT_LAZY_TYPE
1279
1280     for (unsigned i = NUMBER_OF_TYPED_ARRAY_TYPES; i--;)
1281         thisObject->lazyTypedArrayStructure(indexToTypedArrayType(i)).visit(visitor);
1282     
1283     visitor.append(thisObject->m_speciesGetterSetter);
1284     thisObject->m_typedArrayProto.visit(visitor);
1285     thisObject->m_typedArraySuperConstructor.visit(visitor);
1286 }
1287
1288 JSValue JSGlobalObject::toThis(JSCell*, ExecState* exec, ECMAMode ecmaMode)
1289 {
1290     if (ecmaMode == StrictMode)
1291         return jsUndefined();
1292     return exec->globalThisValue();
1293 }
1294
1295 ExecState* JSGlobalObject::globalExec()
1296 {
1297     return CallFrame::create(m_globalCallFrame);
1298 }
1299
1300 void JSGlobalObject::addStaticGlobals(GlobalPropertyInfo* globals, int count)
1301 {
1302     ScopeOffset startOffset = addVariables(count, jsUndefined());
1303
1304     for (int i = 0; i < count; ++i) {
1305         GlobalPropertyInfo& global = globals[i];
1306         ASSERT(global.attributes & DontDelete);
1307         
1308         WatchpointSet* watchpointSet = nullptr;
1309         WriteBarrierBase<Unknown>* variable = nullptr;
1310         {
1311             ConcurrentJSLocker locker(symbolTable()->m_lock);
1312             ScopeOffset offset = symbolTable()->takeNextScopeOffset(locker);
1313             RELEASE_ASSERT(offset = startOffset + i);
1314             SymbolTableEntry newEntry(VarOffset(offset), global.attributes);
1315             newEntry.prepareToWatch();
1316             watchpointSet = newEntry.watchpointSet();
1317             symbolTable()->add(locker, global.identifier.impl(), WTFMove(newEntry));
1318             variable = &variableAt(offset);
1319         }
1320         symbolTablePutTouchWatchpointSet(vm(), this, global.identifier, global.value, variable, watchpointSet);
1321     }
1322 }
1323
1324 bool JSGlobalObject::getOwnPropertySlot(JSObject* object, ExecState* exec, PropertyName propertyName, PropertySlot& slot)
1325 {
1326     if (Base::getOwnPropertySlot(object, exec, propertyName, slot))
1327         return true;
1328     return symbolTableGet(jsCast<JSGlobalObject*>(object), propertyName, slot);
1329 }
1330
1331 void JSGlobalObject::clearRareData(JSCell* cell)
1332 {
1333     jsCast<JSGlobalObject*>(cell)->m_rareData = nullptr;
1334 }
1335
1336 void slowValidateCell(JSGlobalObject* globalObject)
1337 {
1338     RELEASE_ASSERT(globalObject->isGlobalObject());
1339     ASSERT_GC_OBJECT_INHERITS(globalObject, JSGlobalObject::info());
1340 }
1341
1342 void JSGlobalObject::setRemoteDebuggingEnabled(bool enabled)
1343 {
1344 #if ENABLE(REMOTE_INSPECTOR)
1345     m_inspectorDebuggable->setRemoteDebuggingAllowed(enabled);
1346 #else
1347     UNUSED_PARAM(enabled);
1348 #endif
1349 }
1350
1351 bool JSGlobalObject::remoteDebuggingEnabled() const
1352 {
1353 #if ENABLE(REMOTE_INSPECTOR)
1354     return m_inspectorDebuggable->remoteDebuggingAllowed();
1355 #else
1356     return false;
1357 #endif
1358 }
1359
1360 #if ENABLE(WEB_REPLAY)
1361 void JSGlobalObject::setInputCursor(PassRefPtr<InputCursor> prpCursor)
1362 {
1363     m_inputCursor = prpCursor;
1364     ASSERT(m_inputCursor);
1365
1366     InputCursor& cursor = inputCursor();
1367     // Save or set the random seed. This performed here rather than the constructor
1368     // to avoid threading the input cursor through all the abstraction layers.
1369     if (cursor.isCapturing())
1370         cursor.appendInput<SetRandomSeed>(m_weakRandom.seed());
1371     else if (cursor.isReplaying()) {
1372         if (SetRandomSeed* input = cursor.fetchInput<SetRandomSeed>())
1373             m_weakRandom.setSeed(static_cast<unsigned>(input->randomSeed()));
1374     }
1375 }
1376 #endif
1377
1378 void JSGlobalObject::setName(const String& name)
1379 {
1380     m_name = name;
1381
1382 #if ENABLE(REMOTE_INSPECTOR)
1383     m_inspectorDebuggable->update();
1384 #endif
1385 }
1386
1387 # if ENABLE(INTL)
1388 const HashSet<String>& JSGlobalObject::intlCollatorAvailableLocales()
1389 {
1390     if (m_intlCollatorAvailableLocales.isEmpty()) {
1391         int32_t count = ucol_countAvailable();
1392         for (int32_t i = 0; i < count; ++i) {
1393             String locale(ucol_getAvailable(i));
1394             convertICULocaleToBCP47LanguageTag(locale);
1395             m_intlCollatorAvailableLocales.add(locale);
1396         }
1397     }
1398     return m_intlCollatorAvailableLocales;
1399 }
1400
1401 const HashSet<String>& JSGlobalObject::intlDateTimeFormatAvailableLocales()
1402 {
1403     if (m_intlDateTimeFormatAvailableLocales.isEmpty()) {
1404         int32_t count = udat_countAvailable();
1405         for (int32_t i = 0; i < count; ++i) {
1406             String locale(udat_getAvailable(i));
1407             convertICULocaleToBCP47LanguageTag(locale);
1408             m_intlDateTimeFormatAvailableLocales.add(locale);
1409         }
1410     }
1411     return m_intlDateTimeFormatAvailableLocales;
1412 }
1413
1414 const HashSet<String>& JSGlobalObject::intlNumberFormatAvailableLocales()
1415 {
1416     if (m_intlNumberFormatAvailableLocales.isEmpty()) {
1417         int32_t count = unum_countAvailable();
1418         for (int32_t i = 0; i < count; ++i) {
1419             String locale(unum_getAvailable(i));
1420             convertICULocaleToBCP47LanguageTag(locale);
1421             m_intlNumberFormatAvailableLocales.add(locale);
1422         }
1423     }
1424     return m_intlNumberFormatAvailableLocales;
1425 }
1426 #endif // ENABLE(INTL)
1427
1428 void JSGlobalObject::queueMicrotask(Ref<Microtask>&& task)
1429 {
1430     if (globalObjectMethodTable()->queueTaskToEventLoop) {
1431         globalObjectMethodTable()->queueTaskToEventLoop(this, WTFMove(task));
1432         return;
1433     }
1434
1435     vm().queueMicrotask(this, WTFMove(task));
1436 }
1437
1438 bool JSGlobalObject::hasDebugger() const
1439
1440     return m_debugger;
1441 }
1442
1443 bool JSGlobalObject::hasInteractiveDebugger() const 
1444
1445     return m_debugger && m_debugger->isInteractivelyDebugging();
1446 }
1447
1448 } // namespace JSC