DerivedSources/WebCore/JSPerformance.cpp - third_party/webkit - Git at Google

 /*
     This file is part of the WebKit open source project.
     This file has been generated by generate-bindings.pl. DO NOT MODIFY!

     This library is free software; you can redistribute it and/or
     modify it under the terms of the GNU Library General Public
     License as published by the Free Software Foundation; either
     version 2 of the License, or (at your option) any later version.

     This library is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     Library General Public License for more details.

     You should have received a copy of the GNU Library General Public License
     along with this library; see the file COPYING.LIB.  If not, write to
     the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
     Boston, MA 02110-1301, USA.
 */

 #include "config.h"

 #if ENABLE(WEB_TIMING)

 #include "JSPerformance.h"

 #include "EventNames.h"
 #include "ExceptionCode.h"
 #include "JSDOMBinding.h"
 #include "JSDOMConstructor.h"
 #include "JSDOMConvert.h"
 #include "JSEventListener.h"
 #include "JSPerformanceEntry.h"
 #include "JSPerformanceNavigation.h"
 #include "JSPerformanceTiming.h"
 #include "PerformanceEntry.h"
 #include "RuntimeEnabledFeatures.h"
 #include <runtime/Error.h>
 #include <runtime/JSArray.h>
 #include <wtf/GetPtr.h>

 using namespace JSC;

 namespace WebCore {

 // Functions

 JSC::EncodedJSValue JSC_HOST_CALL jsPerformancePrototypeFunctionGetEntries(JSC::ExecState*);
 JSC::EncodedJSValue JSC_HOST_CALL jsPerformancePrototypeFunctionGetEntriesByType(JSC::ExecState*);
 JSC::EncodedJSValue JSC_HOST_CALL jsPerformancePrototypeFunctionGetEntriesByName(JSC::ExecState*);
 JSC::EncodedJSValue JSC_HOST_CALL jsPerformancePrototypeFunctionClearResourceTimings(JSC::ExecState*);
 JSC::EncodedJSValue JSC_HOST_CALL jsPerformancePrototypeFunctionSetResourceTimingBufferSize(JSC::ExecState*);
 JSC::EncodedJSValue JSC_HOST_CALL jsPerformancePrototypeFunctionNow(JSC::ExecState*);

 // Attributes

 JSC::EncodedJSValue jsPerformanceNavigation(JSC::ExecState*, JSC::EncodedJSValue, JSC::PropertyName);
 JSC::EncodedJSValue jsPerformanceTiming(JSC::ExecState*, JSC::EncodedJSValue, JSC::PropertyName);
 JSC::EncodedJSValue jsPerformanceOnresourcetimingbufferfull(JSC::ExecState*, JSC::EncodedJSValue, JSC::PropertyName);
 bool setJSPerformanceOnresourcetimingbufferfull(JSC::ExecState*, JSC::EncodedJSValue, JSC::EncodedJSValue);
 JSC::EncodedJSValue jsPerformanceConstructor(JSC::ExecState*, JSC::EncodedJSValue, JSC::PropertyName);
 bool setJSPerformanceConstructor(JSC::ExecState*, JSC::EncodedJSValue, JSC::EncodedJSValue);

 class JSPerformancePrototype : public JSC::JSNonFinalObject {
 public:
     typedef JSC::JSNonFinalObject Base;
     static JSPerformancePrototype* create(JSC::VM& vm, JSC::JSGlobalObject* globalObject, JSC::Structure* structure)
     {
         JSPerformancePrototype* ptr = new (NotNull, JSC::allocateCell<JSPerformancePrototype>(vm.heap)) JSPerformancePrototype(vm, globalObject, structure);
         ptr->finishCreation(vm);
         return ptr;
     }

     DECLARE_INFO;
     static JSC::Structure* createStructure(JSC::VM& vm, JSC::JSGlobalObject* globalObject, JSC::JSValue prototype)
     {
         return JSC::Structure::create(vm, globalObject, prototype, JSC::TypeInfo(JSC::ObjectType, StructureFlags), info());
     }

 private:
     JSPerformancePrototype(JSC::VM& vm, JSC::JSGlobalObject*, JSC::Structure* structure)
         : JSC::JSNonFinalObject(vm, structure)
     {
     }

     void finishCreation(JSC::VM&);
 };

 typedef JSDOMConstructorNotConstructable<JSPerformance> JSPerformanceConstructor;

 template<> JSValue JSPerformanceConstructor::prototypeForStructure(JSC::VM& vm, const JSDOMGlobalObject& globalObject)
 {
     return JSEventTarget::getConstructor(vm, &globalObject);
 }

 template<> void JSPerformanceConstructor::initializeProperties(VM& vm, JSDOMGlobalObject& globalObject)
 {
     putDirect(vm, vm.propertyNames->prototype, JSPerformance::prototype(vm, &globalObject), DontDelete | ReadOnly | DontEnum);
     putDirect(vm, vm.propertyNames->name, jsNontrivialString(&vm, String(ASCIILiteral("Performance"))), ReadOnly | DontEnum);
     putDirect(vm, vm.propertyNames->length, jsNumber(0), ReadOnly | DontEnum);
 }

 template<> const ClassInfo JSPerformanceConstructor::s_info = { "Performance", &Base::s_info, 0, CREATE_METHOD_TABLE(JSPerformanceConstructor) };

 /* Hash table for prototype */

 static const HashTableValue JSPerformancePrototypeTableValues[] =
 {
     { "constructor", DontEnum, NoIntrinsic, { (intptr_t)static_cast<PropertySlot::GetValueFunc>(jsPerformanceConstructor), (intptr_t) static_cast<PutPropertySlot::PutValueFunc>(setJSPerformanceConstructor) } },
     { "navigation", ReadOnly | CustomAccessor, NoIntrinsic, { (intptr_t)static_cast<PropertySlot::GetValueFunc>(jsPerformanceNavigation), (intptr_t) static_cast<PutPropertySlot::PutValueFunc>(0) } },
     { "timing", ReadOnly | CustomAccessor, NoIntrinsic, { (intptr_t)static_cast<PropertySlot::GetValueFunc>(jsPerformanceTiming), (intptr_t) static_cast<PutPropertySlot::PutValueFunc>(0) } },
     { "onresourcetimingbufferfull", CustomAccessor, NoIntrinsic, { (intptr_t)static_cast<PropertySlot::GetValueFunc>(jsPerformanceOnresourcetimingbufferfull), (intptr_t) static_cast<PutPropertySlot::PutValueFunc>(setJSPerformanceOnresourcetimingbufferfull) } },
     { "getEntries", JSC::Function, NoIntrinsic, { (intptr_t)static_cast<NativeFunction>(jsPerformancePrototypeFunctionGetEntries), (intptr_t) (0) } },
     { "getEntriesByType", JSC::Function, NoIntrinsic, { (intptr_t)static_cast<NativeFunction>(jsPerformancePrototypeFunctionGetEntriesByType), (intptr_t) (1) } },
     { "getEntriesByName", JSC::Function, NoIntrinsic, { (intptr_t)static_cast<NativeFunction>(jsPerformancePrototypeFunctionGetEntriesByName), (intptr_t) (1) } },
     { "clearResourceTimings", JSC::Function, NoIntrinsic, { (intptr_t)static_cast<NativeFunction>(jsPerformancePrototypeFunctionClearResourceTimings), (intptr_t) (0) } },
     { "setResourceTimingBufferSize", JSC::Function, NoIntrinsic, { (intptr_t)static_cast<NativeFunction>(jsPerformancePrototypeFunctionSetResourceTimingBufferSize), (intptr_t) (1) } },
     { "now", JSC::Function, NoIntrinsic, { (intptr_t)static_cast<NativeFunction>(jsPerformancePrototypeFunctionNow), (intptr_t) (0) } },
 };

 const ClassInfo JSPerformancePrototype::s_info = { "PerformancePrototype", &Base::s_info, 0, CREATE_METHOD_TABLE(JSPerformancePrototype) };

 void JSPerformancePrototype::finishCreation(VM& vm)
 {
     Base::finishCreation(vm);
     reifyStaticProperties(vm, JSPerformancePrototypeTableValues, *this);
     if (!RuntimeEnabledFeatures::sharedFeatures().resourceTimingEnabled()) {
         Identifier propertyName = Identifier::fromString(&vm, reinterpret_cast<const LChar*>("getEntries"), strlen("getEntries"));
         VM::DeletePropertyModeScope scope(vm, VM::DeletePropertyMode::IgnoreConfigurable);
         JSObject::deleteProperty(this, globalObject()->globalExec(), propertyName);
     }
     if (!RuntimeEnabledFeatures::sharedFeatures().resourceTimingEnabled()) {
         Identifier propertyName = Identifier::fromString(&vm, reinterpret_cast<const LChar*>("getEntriesByType"), strlen("getEntriesByType"));
         VM::DeletePropertyModeScope scope(vm, VM::DeletePropertyMode::IgnoreConfigurable);
         JSObject::deleteProperty(this, globalObject()->globalExec(), propertyName);
     }
     if (!RuntimeEnabledFeatures::sharedFeatures().resourceTimingEnabled()) {
         Identifier propertyName = Identifier::fromString(&vm, reinterpret_cast<const LChar*>("getEntriesByName"), strlen("getEntriesByName"));
         VM::DeletePropertyModeScope scope(vm, VM::DeletePropertyMode::IgnoreConfigurable);
         JSObject::deleteProperty(this, globalObject()->globalExec(), propertyName);
     }
     if (!RuntimeEnabledFeatures::sharedFeatures().resourceTimingEnabled()) {
         Identifier propertyName = Identifier::fromString(&vm, reinterpret_cast<const LChar*>("clearResourceTimings"), strlen("clearResourceTimings"));
         VM::DeletePropertyModeScope scope(vm, VM::DeletePropertyMode::IgnoreConfigurable);
         JSObject::deleteProperty(this, globalObject()->globalExec(), propertyName);
     }
     if (!RuntimeEnabledFeatures::sharedFeatures().resourceTimingEnabled()) {
         Identifier propertyName = Identifier::fromString(&vm, reinterpret_cast<const LChar*>("setResourceTimingBufferSize"), strlen("setResourceTimingBufferSize"));
         VM::DeletePropertyModeScope scope(vm, VM::DeletePropertyMode::IgnoreConfigurable);
         JSObject::deleteProperty(this, globalObject()->globalExec(), propertyName);
     }
     if (!RuntimeEnabledFeatures::sharedFeatures().resourceTimingEnabled()) {
         Identifier propertyName = Identifier::fromString(&vm, reinterpret_cast<const LChar*>("onresourcetimingbufferfull"), strlen("onresourcetimingbufferfull"));
         VM::DeletePropertyModeScope scope(vm, VM::DeletePropertyMode::IgnoreConfigurable);
         JSObject::deleteProperty(this, globalObject()->globalExec(), propertyName);
     }
 }

 const ClassInfo JSPerformance::s_info = { "Performance", &Base::s_info, 0, CREATE_METHOD_TABLE(JSPerformance) };

 JSPerformance::JSPerformance(Structure* structure, JSDOMGlobalObject& globalObject, Ref<Performance>&& impl)
     : JSEventTarget(structure, globalObject, WTFMove(impl))
 {
 }

 JSObject* JSPerformance::createPrototype(VM& vm, JSGlobalObject* globalObject)
 {
     return JSPerformancePrototype::create(vm, globalObject, JSPerformancePrototype::createStructure(vm, globalObject, JSEventTarget::prototype(vm, globalObject)));
 }

 JSObject* JSPerformance::prototype(VM& vm, JSGlobalObject* globalObject)
 {
     return getDOMPrototype<JSPerformance>(vm, globalObject);
 }

 EncodedJSValue jsPerformanceNavigation(ExecState* state, EncodedJSValue thisValue, PropertyName)
 {
     VM& vm = state->vm();
     auto throwScope = DECLARE_THROW_SCOPE(vm);
     UNUSED_PARAM(throwScope);
     UNUSED_PARAM(thisValue);
     JSValue decodedThisValue = JSValue::decode(thisValue);
     auto* castedThis = jsDynamicCast<JSPerformance*>(decodedThisValue);
     if (UNLIKELY(!castedThis)) {
         return throwGetterTypeError(*state, throwScope, "Performance", "navigation");
     }
     auto& impl = castedThis->wrapped();
     JSValue result = toJS(state, castedThis->globalObject(), impl.navigation());
     return JSValue::encode(result);
 }


 EncodedJSValue jsPerformanceTiming(ExecState* state, EncodedJSValue thisValue, PropertyName)
 {
     VM& vm = state->vm();
     auto throwScope = DECLARE_THROW_SCOPE(vm);
     UNUSED_PARAM(throwScope);
     UNUSED_PARAM(thisValue);
     JSValue decodedThisValue = JSValue::decode(thisValue);
     auto* castedThis = jsDynamicCast<JSPerformance*>(decodedThisValue);
     if (UNLIKELY(!castedThis)) {
         return throwGetterTypeError(*state, throwScope, "Performance", "timing");
     }
     auto& impl = castedThis->wrapped();
     JSValue result = toJS(state, castedThis->globalObject(), impl.timing());
     return JSValue::encode(result);
 }


 EncodedJSValue jsPerformanceOnresourcetimingbufferfull(ExecState* state, EncodedJSValue thisValue, PropertyName)
 {
     VM& vm = state->vm();
     auto throwScope = DECLARE_THROW_SCOPE(vm);
     UNUSED_PARAM(throwScope);
     UNUSED_PARAM(thisValue);
     JSValue decodedThisValue = JSValue::decode(thisValue);
     auto* castedThis = jsDynamicCast<JSPerformance*>(decodedThisValue);
     if (UNLIKELY(!castedThis)) {
         return throwGetterTypeError(*state, throwScope, "Performance", "onresourcetimingbufferfull");
     }
     UNUSED_PARAM(state);
     return JSValue::encode(eventHandlerAttribute(castedThis->wrapped(), eventNames().resourcetimingbufferfullEvent));
 }


 EncodedJSValue jsPerformanceConstructor(ExecState* state, EncodedJSValue thisValue, PropertyName)
 {
     VM& vm = state->vm();
     auto throwScope = DECLARE_THROW_SCOPE(vm);
     JSPerformancePrototype* domObject = jsDynamicCast<JSPerformancePrototype*>(JSValue::decode(thisValue));
     if (UNLIKELY(!domObject))
         return throwVMTypeError(state, throwScope);
     return JSValue::encode(JSPerformance::getConstructor(state->vm(), domObject->globalObject()));
 }

 bool setJSPerformanceConstructor(ExecState* state, EncodedJSValue thisValue, EncodedJSValue encodedValue)
 {
     VM& vm = state->vm();
     auto throwScope = DECLARE_THROW_SCOPE(vm);
     JSValue value = JSValue::decode(encodedValue);
     JSPerformancePrototype* domObject = jsDynamicCast<JSPerformancePrototype*>(JSValue::decode(thisValue));
     if (UNLIKELY(!domObject)) {
         throwVMTypeError(state, throwScope);
         return false;
     }
     // Shadowing a built-in constructor
     return domObject->putDirect(state->vm(), state->propertyNames().constructor, value);
 }

 bool setJSPerformanceOnresourcetimingbufferfull(ExecState* state, EncodedJSValue thisValue, EncodedJSValue encodedValue)
 {
     VM& vm = state->vm();
     auto throwScope = DECLARE_THROW_SCOPE(vm);
     UNUSED_PARAM(throwScope);
     JSValue value = JSValue::decode(encodedValue);
     UNUSED_PARAM(thisValue);
     JSPerformance* castedThis = jsDynamicCast<JSPerformance*>(JSValue::decode(thisValue));
     if (UNLIKELY(!castedThis)) {
         return throwSetterTypeError(*state, throwScope, "Performance", "onresourcetimingbufferfull");
     }
     setEventHandlerAttribute(*state, *castedThis, castedThis->wrapped(), eventNames().resourcetimingbufferfullEvent, value);
     return true;
 }


 JSValue JSPerformance::getConstructor(VM& vm, const JSGlobalObject* globalObject)
 {
     return getDOMConstructor<JSPerformanceConstructor>(vm, *jsCast<const JSDOMGlobalObject*>(globalObject));
 }

 EncodedJSValue JSC_HOST_CALL jsPerformancePrototypeFunctionGetEntries(ExecState* state)
 {
     VM& vm = state->vm();
     auto throwScope = DECLARE_THROW_SCOPE(vm);
     UNUSED_PARAM(throwScope);
     JSValue thisValue = state->thisValue();
     auto castedThis = jsDynamicCast<JSPerformance*>(thisValue);
     if (UNLIKELY(!castedThis))
         return throwThisTypeError(*state, throwScope, "Performance", "getEntries");
     ASSERT_GC_OBJECT_INHERITS(castedThis, JSPerformance::info());
     auto& impl = castedThis->wrapped();
     JSValue result = jsArray(state, castedThis->globalObject(), impl.getEntries());
     return JSValue::encode(result);
 }

 EncodedJSValue JSC_HOST_CALL jsPerformancePrototypeFunctionGetEntriesByType(ExecState* state)
 {
     VM& vm = state->vm();
     auto throwScope = DECLARE_THROW_SCOPE(vm);
     UNUSED_PARAM(throwScope);
     JSValue thisValue = state->thisValue();
     auto castedThis = jsDynamicCast<JSPerformance*>(thisValue);
     if (UNLIKELY(!castedThis))
         return throwThisTypeError(*state, throwScope, "Performance", "getEntriesByType");
     ASSERT_GC_OBJECT_INHERITS(castedThis, JSPerformance::info());
     auto& impl = castedThis->wrapped();
     if (UNLIKELY(state->argumentCount() < 1))
         return throwVMError(state, throwScope, createNotEnoughArgumentsError(state));
     auto entryType = state->uncheckedArgument(0).toWTFString(state);
     RETURN_IF_EXCEPTION(throwScope, encodedJSValue());
     JSValue result = jsArray(state, castedThis->globalObject(), impl.getEntriesByType(WTFMove(entryType)));
     return JSValue::encode(result);
 }

 EncodedJSValue JSC_HOST_CALL jsPerformancePrototypeFunctionGetEntriesByName(ExecState* state)
 {
     VM& vm = state->vm();
     auto throwScope = DECLARE_THROW_SCOPE(vm);
     UNUSED_PARAM(throwScope);
     JSValue thisValue = state->thisValue();
     auto castedThis = jsDynamicCast<JSPerformance*>(thisValue);
     if (UNLIKELY(!castedThis))
         return throwThisTypeError(*state, throwScope, "Performance", "getEntriesByName");
     ASSERT_GC_OBJECT_INHERITS(castedThis, JSPerformance::info());
     auto& impl = castedThis->wrapped();
     if (UNLIKELY(state->argumentCount() < 1))
         return throwVMError(state, throwScope, createNotEnoughArgumentsError(state));
     auto name = state->uncheckedArgument(0).toWTFString(state);
     RETURN_IF_EXCEPTION(throwScope, encodedJSValue());
     auto entryType = state->argument(1).isUndefined() ? String() : state->uncheckedArgument(1).toWTFString(state);
     RETURN_IF_EXCEPTION(throwScope, encodedJSValue());
     JSValue result = jsArray(state, castedThis->globalObject(), impl.getEntriesByName(WTFMove(name), WTFMove(entryType)));
     return JSValue::encode(result);
 }

 EncodedJSValue JSC_HOST_CALL jsPerformancePrototypeFunctionClearResourceTimings(ExecState* state)
 {
     VM& vm = state->vm();
     auto throwScope = DECLARE_THROW_SCOPE(vm);
     UNUSED_PARAM(throwScope);
     JSValue thisValue = state->thisValue();
     auto castedThis = jsDynamicCast<JSPerformance*>(thisValue);
     if (UNLIKELY(!castedThis))
         return throwThisTypeError(*state, throwScope, "Performance", "clearResourceTimings");
     ASSERT_GC_OBJECT_INHERITS(castedThis, JSPerformance::info());
     auto& impl = castedThis->wrapped();
     impl.clearResourceTimings();
     return JSValue::encode(jsUndefined());
 }

 EncodedJSValue JSC_HOST_CALL jsPerformancePrototypeFunctionSetResourceTimingBufferSize(ExecState* state)
 {
     VM& vm = state->vm();
     auto throwScope = DECLARE_THROW_SCOPE(vm);
     UNUSED_PARAM(throwScope);
     JSValue thisValue = state->thisValue();
     auto castedThis = jsDynamicCast<JSPerformance*>(thisValue);
     if (UNLIKELY(!castedThis))
         return throwThisTypeError(*state, throwScope, "Performance", "setResourceTimingBufferSize");
     ASSERT_GC_OBJECT_INHERITS(castedThis, JSPerformance::info());
     auto& impl = castedThis->wrapped();
     if (UNLIKELY(state->argumentCount() < 1))
         return throwVMError(state, throwScope, createNotEnoughArgumentsError(state));
     auto maxSize = convert<uint32_t>(*state, state->uncheckedArgument(0), NormalConversion);
     RETURN_IF_EXCEPTION(throwScope, encodedJSValue());
     impl.setResourceTimingBufferSize(WTFMove(maxSize));
     return JSValue::encode(jsUndefined());
 }

 EncodedJSValue JSC_HOST_CALL jsPerformancePrototypeFunctionNow(ExecState* state)
 {
     VM& vm = state->vm();
     auto throwScope = DECLARE_THROW_SCOPE(vm);
     UNUSED_PARAM(throwScope);
     JSValue thisValue = state->thisValue();
     auto castedThis = jsDynamicCast<JSPerformance*>(thisValue);
     if (UNLIKELY(!castedThis))
         return throwThisTypeError(*state, throwScope, "Performance", "now");
     ASSERT_GC_OBJECT_INHERITS(castedThis, JSPerformance::info());
     auto& impl = castedThis->wrapped();
     JSValue result = jsNumber(impl.now());
     return JSValue::encode(result);
 }

 void JSPerformance::visitChildren(JSCell* cell, SlotVisitor& visitor)
 {
     auto* thisObject = jsCast<JSPerformance*>(cell);
     ASSERT_GC_OBJECT_INHERITS(thisObject, info());
     Base::visitChildren(thisObject, visitor);
     thisObject->wrapped().visitJSEventListeners(visitor);
 }

 bool JSPerformanceOwner::isReachableFromOpaqueRoots(JSC::Handle<JSC::Unknown> handle, void*, SlotVisitor& visitor)
 {
     auto* jsPerformance = jsCast<JSPerformance*>(handle.slot()->asCell());
     if (jsPerformance->wrapped().isFiringEventListeners())
         return true;
     Frame* root = WTF::getPtr(jsPerformance->wrapped().frame());
     if (!root)
         return false;
     return visitor.containsOpaqueRoot(root);
 }

 void JSPerformanceOwner::finalize(JSC::Handle<JSC::Unknown> handle, void* context)
 {
     auto* jsPerformance = jsCast<JSPerformance*>(handle.slot()->asCell());
     auto& world = *static_cast<DOMWrapperWorld*>(context);
     uncacheWrapper(world, &jsPerformance->wrapped(), jsPerformance);
 }

 #if ENABLE(BINDING_INTEGRITY)
 #if PLATFORM(WIN)
 #pragma warning(disable: 4483)
 extern "C" { extern void (*const __identifier("??_7Performance@WebCore@@6B@")[])(); }
 #else
 extern "C" { extern void* _ZTVN7WebCore11PerformanceE[]; }
 #endif
 #endif

 JSC::JSValue toJSNewlyCreated(JSC::ExecState*, JSDOMGlobalObject* globalObject, Ref<Performance>&& impl)
 {

 #if ENABLE(BINDING_INTEGRITY)
     void* actualVTablePointer = *(reinterpret_cast<void**>(impl.ptr()));
 #if PLATFORM(WIN)
     void* expectedVTablePointer = reinterpret_cast<void*>(__identifier("??_7Performance@WebCore@@6B@"));
 #else
     void* expectedVTablePointer = &_ZTVN7WebCore11PerformanceE[2];
 #if COMPILER(CLANG)
     // If this fails Performance does not have a vtable, so you need to add the
     // ImplementationLacksVTable attribute to the interface definition
     static_assert(__is_polymorphic(Performance), "Performance is not polymorphic");
 #endif
 #endif
     // If you hit this assertion you either have a use after free bug, or
     // Performance has subclasses. If Performance has subclasses that get passed
     // to toJS() we currently require Performance you to opt out of binding hardening
     // by adding the SkipVTableValidation attribute to the interface IDL definition
     RELEASE_ASSERT(actualVTablePointer == expectedVTablePointer);
 #endif
     return createWrapper<Performance>(globalObject, WTFMove(impl));
 }

 JSC::JSValue toJS(JSC::ExecState* state, JSDOMGlobalObject* globalObject, Performance& impl)
 {
     return wrap(state, globalObject, impl);
 }

 Performance* JSPerformance::toWrapped(JSC::JSValue value)
 {
     if (auto* wrapper = jsDynamicCast<JSPerformance*>(value))
         return &wrapper->wrapped();
     return nullptr;
 }

 }

 #endif // ENABLE(WEB_TIMING)
	/*
	This file is part of the WebKit open source project.
	This file has been generated by generate-bindings.pl. DO NOT MODIFY!

	This library is free software; you can redistribute it and/or
	modify it under the terms of the GNU Library General Public
	License as published by the Free Software Foundation; either
	version 2 of the License, or (at your option) any later version.

	This library is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	Library General Public License for more details.

	You should have received a copy of the GNU Library General Public License
	along with this library; see the file COPYING.LIB. If not, write to
	the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
	Boston, MA 02110-1301, USA.
	*/

	#include "config.h"

	#if ENABLE(WEB_TIMING)

	#include "JSPerformance.h"

	#include "EventNames.h"
	#include "ExceptionCode.h"
	#include "JSDOMBinding.h"
	#include "JSDOMConstructor.h"
	#include "JSDOMConvert.h"
	#include "JSEventListener.h"
	#include "JSPerformanceEntry.h"
	#include "JSPerformanceNavigation.h"
	#include "JSPerformanceTiming.h"
	#include "PerformanceEntry.h"
	#include "RuntimeEnabledFeatures.h"
	#include <runtime/Error.h>
	#include <runtime/JSArray.h>
	#include <wtf/GetPtr.h>

	using namespace JSC;

	namespace WebCore {

	// Functions

	JSC::EncodedJSValue JSC_HOST_CALL jsPerformancePrototypeFunctionGetEntries(JSC::ExecState*);
	JSC::EncodedJSValue JSC_HOST_CALL jsPerformancePrototypeFunctionGetEntriesByType(JSC::ExecState*);
	JSC::EncodedJSValue JSC_HOST_CALL jsPerformancePrototypeFunctionGetEntriesByName(JSC::ExecState*);
	JSC::EncodedJSValue JSC_HOST_CALL jsPerformancePrototypeFunctionClearResourceTimings(JSC::ExecState*);
	JSC::EncodedJSValue JSC_HOST_CALL jsPerformancePrototypeFunctionSetResourceTimingBufferSize(JSC::ExecState*);
	JSC::EncodedJSValue JSC_HOST_CALL jsPerformancePrototypeFunctionNow(JSC::ExecState*);

	// Attributes

	JSC::EncodedJSValue jsPerformanceNavigation(JSC::ExecState*, JSC::EncodedJSValue, JSC::PropertyName);
	JSC::EncodedJSValue jsPerformanceTiming(JSC::ExecState*, JSC::EncodedJSValue, JSC::PropertyName);
	JSC::EncodedJSValue jsPerformanceOnresourcetimingbufferfull(JSC::ExecState*, JSC::EncodedJSValue, JSC::PropertyName);
	bool setJSPerformanceOnresourcetimingbufferfull(JSC::ExecState*, JSC::EncodedJSValue, JSC::EncodedJSValue);
	JSC::EncodedJSValue jsPerformanceConstructor(JSC::ExecState*, JSC::EncodedJSValue, JSC::PropertyName);
	bool setJSPerformanceConstructor(JSC::ExecState*, JSC::EncodedJSValue, JSC::EncodedJSValue);

	class JSPerformancePrototype : public JSC::JSNonFinalObject {
	public:
	typedef JSC::JSNonFinalObject Base;
	static JSPerformancePrototype* create(JSC::VM& vm, JSC::JSGlobalObject* globalObject, JSC::Structure* structure)
	{
	JSPerformancePrototype* ptr = new (NotNull, JSC::allocateCell<JSPerformancePrototype>(vm.heap)) JSPerformancePrototype(vm, globalObject, structure);
	ptr->finishCreation(vm);
	return ptr;
	}

	DECLARE_INFO;
	static JSC::Structure* createStructure(JSC::VM& vm, JSC::JSGlobalObject* globalObject, JSC::JSValue prototype)
	{
	return JSC::Structure::create(vm, globalObject, prototype, JSC::TypeInfo(JSC::ObjectType, StructureFlags), info());
	}

	private:
	JSPerformancePrototype(JSC::VM& vm, JSC::JSGlobalObject, JSC::Structure structure)
	: JSC::JSNonFinalObject(vm, structure)
	{
	}

	void finishCreation(JSC::VM&);
	};

	typedef JSDOMConstructorNotConstructable<JSPerformance> JSPerformanceConstructor;

	template<> JSValue JSPerformanceConstructor::prototypeForStructure(JSC::VM& vm, const JSDOMGlobalObject& globalObject)
	{
	return JSEventTarget::getConstructor(vm, &globalObject);
	}

	template<> void JSPerformanceConstructor::initializeProperties(VM& vm, JSDOMGlobalObject& globalObject)
	{
	putDirect(vm, vm.propertyNames->prototype, JSPerformance::prototype(vm, &globalObject), DontDelete \| ReadOnly \| DontEnum);
	putDirect(vm, vm.propertyNames->name, jsNontrivialString(&vm, String(ASCIILiteral("Performance"))), ReadOnly \| DontEnum);
	putDirect(vm, vm.propertyNames->length, jsNumber(0), ReadOnly \| DontEnum);
	}

	template<> const ClassInfo JSPerformanceConstructor::s_info = { "Performance", &Base::s_info, 0, CREATE_METHOD_TABLE(JSPerformanceConstructor) };

	/* Hash table for prototype */

	static const HashTableValue JSPerformancePrototypeTableValues[] =
	{
	{ "constructor", DontEnum, NoIntrinsic, { (intptr_t)static_cast<PropertySlot::GetValueFunc>(jsPerformanceConstructor), (intptr_t) static_cast<PutPropertySlot::PutValueFunc>(setJSPerformanceConstructor) } },
	{ "navigation", ReadOnly \| CustomAccessor, NoIntrinsic, { (intptr_t)static_cast<PropertySlot::GetValueFunc>(jsPerformanceNavigation), (intptr_t) static_cast<PutPropertySlot::PutValueFunc>(0) } },
	{ "timing", ReadOnly \| CustomAccessor, NoIntrinsic, { (intptr_t)static_cast<PropertySlot::GetValueFunc>(jsPerformanceTiming), (intptr_t) static_cast<PutPropertySlot::PutValueFunc>(0) } },
	{ "onresourcetimingbufferfull", CustomAccessor, NoIntrinsic, { (intptr_t)static_cast<PropertySlot::GetValueFunc>(jsPerformanceOnresourcetimingbufferfull), (intptr_t) static_cast<PutPropertySlot::PutValueFunc>(setJSPerformanceOnresourcetimingbufferfull) } },
	{ "getEntries", JSC::Function, NoIntrinsic, { (intptr_t)static_cast<NativeFunction>(jsPerformancePrototypeFunctionGetEntries), (intptr_t) (0) } },
	{ "getEntriesByType", JSC::Function, NoIntrinsic, { (intptr_t)static_cast<NativeFunction>(jsPerformancePrototypeFunctionGetEntriesByType), (intptr_t) (1) } },
	{ "getEntriesByName", JSC::Function, NoIntrinsic, { (intptr_t)static_cast<NativeFunction>(jsPerformancePrototypeFunctionGetEntriesByName), (intptr_t) (1) } },
	{ "clearResourceTimings", JSC::Function, NoIntrinsic, { (intptr_t)static_cast<NativeFunction>(jsPerformancePrototypeFunctionClearResourceTimings), (intptr_t) (0) } },
	{ "setResourceTimingBufferSize", JSC::Function, NoIntrinsic, { (intptr_t)static_cast<NativeFunction>(jsPerformancePrototypeFunctionSetResourceTimingBufferSize), (intptr_t) (1) } },
	{ "now", JSC::Function, NoIntrinsic, { (intptr_t)static_cast<NativeFunction>(jsPerformancePrototypeFunctionNow), (intptr_t) (0) } },
	};

	const ClassInfo JSPerformancePrototype::s_info = { "PerformancePrototype", &Base::s_info, 0, CREATE_METHOD_TABLE(JSPerformancePrototype) };

	void JSPerformancePrototype::finishCreation(VM& vm)
	{
	Base::finishCreation(vm);
	reifyStaticProperties(vm, JSPerformancePrototypeTableValues, *this);
	if (!RuntimeEnabledFeatures::sharedFeatures().resourceTimingEnabled()) {
	Identifier propertyName = Identifier::fromString(&vm, reinterpret_cast<const LChar*>("getEntries"), strlen("getEntries"));
	VM::DeletePropertyModeScope scope(vm, VM::DeletePropertyMode::IgnoreConfigurable);
	JSObject::deleteProperty(this, globalObject()->globalExec(), propertyName);
	}
	if (!RuntimeEnabledFeatures::sharedFeatures().resourceTimingEnabled()) {
	Identifier propertyName = Identifier::fromString(&vm, reinterpret_cast<const LChar*>("getEntriesByType"), strlen("getEntriesByType"));
	VM::DeletePropertyModeScope scope(vm, VM::DeletePropertyMode::IgnoreConfigurable);
	JSObject::deleteProperty(this, globalObject()->globalExec(), propertyName);
	}
	if (!RuntimeEnabledFeatures::sharedFeatures().resourceTimingEnabled()) {
	Identifier propertyName = Identifier::fromString(&vm, reinterpret_cast<const LChar*>("getEntriesByName"), strlen("getEntriesByName"));
	VM::DeletePropertyModeScope scope(vm, VM::DeletePropertyMode::IgnoreConfigurable);
	JSObject::deleteProperty(this, globalObject()->globalExec(), propertyName);
	}
	if (!RuntimeEnabledFeatures::sharedFeatures().resourceTimingEnabled()) {
	Identifier propertyName = Identifier::fromString(&vm, reinterpret_cast<const LChar*>("clearResourceTimings"), strlen("clearResourceTimings"));
	VM::DeletePropertyModeScope scope(vm, VM::DeletePropertyMode::IgnoreConfigurable);
	JSObject::deleteProperty(this, globalObject()->globalExec(), propertyName);
	}
	if (!RuntimeEnabledFeatures::sharedFeatures().resourceTimingEnabled()) {
	Identifier propertyName = Identifier::fromString(&vm, reinterpret_cast<const LChar*>("setResourceTimingBufferSize"), strlen("setResourceTimingBufferSize"));
	VM::DeletePropertyModeScope scope(vm, VM::DeletePropertyMode::IgnoreConfigurable);
	JSObject::deleteProperty(this, globalObject()->globalExec(), propertyName);
	}
	if (!RuntimeEnabledFeatures::sharedFeatures().resourceTimingEnabled()) {
	Identifier propertyName = Identifier::fromString(&vm, reinterpret_cast<const LChar*>("onresourcetimingbufferfull"), strlen("onresourcetimingbufferfull"));
	VM::DeletePropertyModeScope scope(vm, VM::DeletePropertyMode::IgnoreConfigurable);
	JSObject::deleteProperty(this, globalObject()->globalExec(), propertyName);
	}
	}

	const ClassInfo JSPerformance::s_info = { "Performance", &Base::s_info, 0, CREATE_METHOD_TABLE(JSPerformance) };

	JSPerformance::JSPerformance(Structure* structure, JSDOMGlobalObject& globalObject, Ref<Performance>&& impl)
	: JSEventTarget(structure, globalObject, WTFMove(impl))
	{
	}

	JSObject* JSPerformance::createPrototype(VM& vm, JSGlobalObject* globalObject)
	{
	return JSPerformancePrototype::create(vm, globalObject, JSPerformancePrototype::createStructure(vm, globalObject, JSEventTarget::prototype(vm, globalObject)));
	}

	JSObject* JSPerformance::prototype(VM& vm, JSGlobalObject* globalObject)
	{
	return getDOMPrototype<JSPerformance>(vm, globalObject);
	}

	EncodedJSValue jsPerformanceNavigation(ExecState* state, EncodedJSValue thisValue, PropertyName)
	{
	VM& vm = state->vm();
	auto throwScope = DECLARE_THROW_SCOPE(vm);
	UNUSED_PARAM(throwScope);
	UNUSED_PARAM(thisValue);
	JSValue decodedThisValue = JSValue::decode(thisValue);
	auto* castedThis = jsDynamicCast<JSPerformance*>(decodedThisValue);
	if (UNLIKELY(!castedThis)) {
	return throwGetterTypeError(*state, throwScope, "Performance", "navigation");
	}
	auto& impl = castedThis->wrapped();
	JSValue result = toJS(state, castedThis->globalObject(), impl.navigation());
	return JSValue::encode(result);
	}


	EncodedJSValue jsPerformanceTiming(ExecState* state, EncodedJSValue thisValue, PropertyName)
	{
	VM& vm = state->vm();
	auto throwScope = DECLARE_THROW_SCOPE(vm);
	UNUSED_PARAM(throwScope);
	UNUSED_PARAM(thisValue);
	JSValue decodedThisValue = JSValue::decode(thisValue);
	auto* castedThis = jsDynamicCast<JSPerformance*>(decodedThisValue);
	if (UNLIKELY(!castedThis)) {
	return throwGetterTypeError(*state, throwScope, "Performance", "timing");
	}
	auto& impl = castedThis->wrapped();
	JSValue result = toJS(state, castedThis->globalObject(), impl.timing());
	return JSValue::encode(result);
	}


	EncodedJSValue jsPerformanceOnresourcetimingbufferfull(ExecState* state, EncodedJSValue thisValue, PropertyName)
	{
	VM& vm = state->vm();
	auto throwScope = DECLARE_THROW_SCOPE(vm);
	UNUSED_PARAM(throwScope);
	UNUSED_PARAM(thisValue);
	JSValue decodedThisValue = JSValue::decode(thisValue);
	auto* castedThis = jsDynamicCast<JSPerformance*>(decodedThisValue);
	if (UNLIKELY(!castedThis)) {
	return throwGetterTypeError(*state, throwScope, "Performance", "onresourcetimingbufferfull");
	}
	UNUSED_PARAM(state);
	return JSValue::encode(eventHandlerAttribute(castedThis->wrapped(), eventNames().resourcetimingbufferfullEvent));
	}


	EncodedJSValue jsPerformanceConstructor(ExecState* state, EncodedJSValue thisValue, PropertyName)
	{
	VM& vm = state->vm();
	auto throwScope = DECLARE_THROW_SCOPE(vm);
	JSPerformancePrototype* domObject = jsDynamicCast<JSPerformancePrototype*>(JSValue::decode(thisValue));
	if (UNLIKELY(!domObject))
	return throwVMTypeError(state, throwScope);
	return JSValue::encode(JSPerformance::getConstructor(state->vm(), domObject->globalObject()));
	}

	bool setJSPerformanceConstructor(ExecState* state, EncodedJSValue thisValue, EncodedJSValue encodedValue)
	{
	VM& vm = state->vm();
	auto throwScope = DECLARE_THROW_SCOPE(vm);
	JSValue value = JSValue::decode(encodedValue);
	JSPerformancePrototype* domObject = jsDynamicCast<JSPerformancePrototype*>(JSValue::decode(thisValue));
	if (UNLIKELY(!domObject)) {
	throwVMTypeError(state, throwScope);
	return false;
	}
	// Shadowing a built-in constructor
	return domObject->putDirect(state->vm(), state->propertyNames().constructor, value);
	}

	bool setJSPerformanceOnresourcetimingbufferfull(ExecState* state, EncodedJSValue thisValue, EncodedJSValue encodedValue)
	{
	VM& vm = state->vm();
	auto throwScope = DECLARE_THROW_SCOPE(vm);
	UNUSED_PARAM(throwScope);
	JSValue value = JSValue::decode(encodedValue);
	UNUSED_PARAM(thisValue);
	JSPerformance* castedThis = jsDynamicCast<JSPerformance*>(JSValue::decode(thisValue));
	if (UNLIKELY(!castedThis)) {
	return throwSetterTypeError(*state, throwScope, "Performance", "onresourcetimingbufferfull");
	}
	setEventHandlerAttribute(state, castedThis, castedThis->wrapped(), eventNames().resourcetimingbufferfullEvent, value);
	return true;
	}


	JSValue JSPerformance::getConstructor(VM& vm, const JSGlobalObject* globalObject)
	{
	return getDOMConstructor<JSPerformanceConstructor>(vm, jsCast<const JSDOMGlobalObject>(globalObject));
	}

	EncodedJSValue JSC_HOST_CALL jsPerformancePrototypeFunctionGetEntries(ExecState* state)
	{
	VM& vm = state->vm();
	auto throwScope = DECLARE_THROW_SCOPE(vm);
	UNUSED_PARAM(throwScope);
	JSValue thisValue = state->thisValue();
	auto castedThis = jsDynamicCast<JSPerformance*>(thisValue);
	if (UNLIKELY(!castedThis))
	return throwThisTypeError(*state, throwScope, "Performance", "getEntries");
	ASSERT_GC_OBJECT_INHERITS(castedThis, JSPerformance::info());
	auto& impl = castedThis->wrapped();
	JSValue result = jsArray(state, castedThis->globalObject(), impl.getEntries());
	return JSValue::encode(result);
	}

	EncodedJSValue JSC_HOST_CALL jsPerformancePrototypeFunctionGetEntriesByType(ExecState* state)
	{
	VM& vm = state->vm();
	auto throwScope = DECLARE_THROW_SCOPE(vm);
	UNUSED_PARAM(throwScope);
	JSValue thisValue = state->thisValue();
	auto castedThis = jsDynamicCast<JSPerformance*>(thisValue);
	if (UNLIKELY(!castedThis))
	return throwThisTypeError(*state, throwScope, "Performance", "getEntriesByType");
	ASSERT_GC_OBJECT_INHERITS(castedThis, JSPerformance::info());
	auto& impl = castedThis->wrapped();
	if (UNLIKELY(state->argumentCount() < 1))
	return throwVMError(state, throwScope, createNotEnoughArgumentsError(state));
	auto entryType = state->uncheckedArgument(0).toWTFString(state);
	RETURN_IF_EXCEPTION(throwScope, encodedJSValue());
	JSValue result = jsArray(state, castedThis->globalObject(), impl.getEntriesByType(WTFMove(entryType)));
	return JSValue::encode(result);
	}

	EncodedJSValue JSC_HOST_CALL jsPerformancePrototypeFunctionGetEntriesByName(ExecState* state)
	{
	VM& vm = state->vm();
	auto throwScope = DECLARE_THROW_SCOPE(vm);
	UNUSED_PARAM(throwScope);
	JSValue thisValue = state->thisValue();
	auto castedThis = jsDynamicCast<JSPerformance*>(thisValue);
	if (UNLIKELY(!castedThis))
	return throwThisTypeError(*state, throwScope, "Performance", "getEntriesByName");
	ASSERT_GC_OBJECT_INHERITS(castedThis, JSPerformance::info());
	auto& impl = castedThis->wrapped();
	if (UNLIKELY(state->argumentCount() < 1))
	return throwVMError(state, throwScope, createNotEnoughArgumentsError(state));
	auto name = state->uncheckedArgument(0).toWTFString(state);
	RETURN_IF_EXCEPTION(throwScope, encodedJSValue());
	auto entryType = state->argument(1).isUndefined() ? String() : state->uncheckedArgument(1).toWTFString(state);
	RETURN_IF_EXCEPTION(throwScope, encodedJSValue());
	JSValue result = jsArray(state, castedThis->globalObject(), impl.getEntriesByName(WTFMove(name), WTFMove(entryType)));
	return JSValue::encode(result);
	}

	EncodedJSValue JSC_HOST_CALL jsPerformancePrototypeFunctionClearResourceTimings(ExecState* state)
	{
	VM& vm = state->vm();
	auto throwScope = DECLARE_THROW_SCOPE(vm);
	UNUSED_PARAM(throwScope);
	JSValue thisValue = state->thisValue();
	auto castedThis = jsDynamicCast<JSPerformance*>(thisValue);
	if (UNLIKELY(!castedThis))
	return throwThisTypeError(*state, throwScope, "Performance", "clearResourceTimings");
	ASSERT_GC_OBJECT_INHERITS(castedThis, JSPerformance::info());
	auto& impl = castedThis->wrapped();
	impl.clearResourceTimings();
	return JSValue::encode(jsUndefined());
	}

	EncodedJSValue JSC_HOST_CALL jsPerformancePrototypeFunctionSetResourceTimingBufferSize(ExecState* state)
	{
	VM& vm = state->vm();
	auto throwScope = DECLARE_THROW_SCOPE(vm);
	UNUSED_PARAM(throwScope);
	JSValue thisValue = state->thisValue();
	auto castedThis = jsDynamicCast<JSPerformance*>(thisValue);
	if (UNLIKELY(!castedThis))
	return throwThisTypeError(*state, throwScope, "Performance", "setResourceTimingBufferSize");
	ASSERT_GC_OBJECT_INHERITS(castedThis, JSPerformance::info());
	auto& impl = castedThis->wrapped();
	if (UNLIKELY(state->argumentCount() < 1))
	return throwVMError(state, throwScope, createNotEnoughArgumentsError(state));
	auto maxSize = convert<uint32_t>(*state, state->uncheckedArgument(0), NormalConversion);
	RETURN_IF_EXCEPTION(throwScope, encodedJSValue());
	impl.setResourceTimingBufferSize(WTFMove(maxSize));
	return JSValue::encode(jsUndefined());
	}

	EncodedJSValue JSC_HOST_CALL jsPerformancePrototypeFunctionNow(ExecState* state)
	{
	VM& vm = state->vm();
	auto throwScope = DECLARE_THROW_SCOPE(vm);
	UNUSED_PARAM(throwScope);
	JSValue thisValue = state->thisValue();
	auto castedThis = jsDynamicCast<JSPerformance*>(thisValue);
	if (UNLIKELY(!castedThis))
	return throwThisTypeError(*state, throwScope, "Performance", "now");
	ASSERT_GC_OBJECT_INHERITS(castedThis, JSPerformance::info());
	auto& impl = castedThis->wrapped();
	JSValue result = jsNumber(impl.now());
	return JSValue::encode(result);
	}

	void JSPerformance::visitChildren(JSCell* cell, SlotVisitor& visitor)
	{
	auto* thisObject = jsCast<JSPerformance*>(cell);
	ASSERT_GC_OBJECT_INHERITS(thisObject, info());
	Base::visitChildren(thisObject, visitor);
	thisObject->wrapped().visitJSEventListeners(visitor);
	}

	bool JSPerformanceOwner::isReachableFromOpaqueRoots(JSC::Handle<JSC::Unknown> handle, void*, SlotVisitor& visitor)
	{
	auto* jsPerformance = jsCast<JSPerformance*>(handle.slot()->asCell());
	if (jsPerformance->wrapped().isFiringEventListeners())
	return true;
	Frame* root = WTF::getPtr(jsPerformance->wrapped().frame());
	if (!root)
	return false;
	return visitor.containsOpaqueRoot(root);
	}

	void JSPerformanceOwner::finalize(JSC::Handle<JSC::Unknown> handle, void* context)
	{
	auto* jsPerformance = jsCast<JSPerformance*>(handle.slot()->asCell());
	auto& world = static_cast<DOMWrapperWorld>(context);
	uncacheWrapper(world, &jsPerformance->wrapped(), jsPerformance);
	}

	#if ENABLE(BINDING_INTEGRITY)
	#if PLATFORM(WIN)
	#pragma warning(disable: 4483)
	extern "C" { extern void (*const __identifier("??_7Performance@WebCore@@6B@")[])(); }
	#else
	extern "C" { extern void* _ZTVN7WebCore11PerformanceE[]; }
	#endif
	#endif

	JSC::JSValue toJSNewlyCreated(JSC::ExecState, JSDOMGlobalObject globalObject, Ref<Performance>&& impl)
	{

	#if ENABLE(BINDING_INTEGRITY)
	void* actualVTablePointer = (reinterpret_cast<void*>(impl.ptr()));
	#if PLATFORM(WIN)
	void* expectedVTablePointer = reinterpret_cast<void*>(__identifier("??_7Performance@WebCore@@6B@"));
	#else
	void* expectedVTablePointer = &_ZTVN7WebCore11PerformanceE[2];
	#if COMPILER(CLANG)
	// If this fails Performance does not have a vtable, so you need to add the
	// ImplementationLacksVTable attribute to the interface definition
	static_assert(__is_polymorphic(Performance), "Performance is not polymorphic");
	#endif
	#endif
	// If you hit this assertion you either have a use after free bug, or
	// Performance has subclasses. If Performance has subclasses that get passed
	// to toJS() we currently require Performance you to opt out of binding hardening
	// by adding the SkipVTableValidation attribute to the interface IDL definition
	RELEASE_ASSERT(actualVTablePointer == expectedVTablePointer);
	#endif
	return createWrapper<Performance>(globalObject, WTFMove(impl));
	}

	JSC::JSValue toJS(JSC::ExecState* state, JSDOMGlobalObject* globalObject, Performance& impl)
	{
	return wrap(state, globalObject, impl);
	}

	Performance* JSPerformance::toWrapped(JSC::JSValue value)
	{
	if (auto* wrapper = jsDynamicCast<JSPerformance*>(value))
	return &wrapper->wrapped();
	return nullptr;
	}

	}

	#endif // ENABLE(WEB_TIMING)