DerivedSources/WebCore/JSFontFaceSet.cpp

/*
    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"
#include "JSFontFaceSet.h"

#include "Document.h"
#include "EventNames.h"
#include "ExceptionCode.h"
#include "FontFaceSet.h"
#include "JSDOMBinding.h"
#include "JSDOMConstructor.h"
#include "JSDOMConvert.h"
#include "JSDOMIterator.h"
#include "JSDOMPromise.h"
#include "JSEventListener.h"
#include "JSFontFace.h"
#include "JSFontFaceSet.h"
#include "RuntimeEnabledFeatures.h"
#include <runtime/Error.h>
#include <runtime/JSString.h>
#include <wtf/GetPtr.h>

using namespace JSC;

namespace WebCore {

template<typename T> Optional<T> parse(ExecState&, JSValue);
template<typename T> const char* expectedEnumerationValues();

JSString* jsStringWithCache(ExecState*, FontFaceSet::LoadStatus);

JSString* jsStringWithCache(ExecState* state, FontFaceSet::LoadStatus enumerationValue)
{
    static NeverDestroyed<const String> values[] = {
        ASCIILiteral("loading"),
        ASCIILiteral("loaded"),
    };
    static_assert(static_cast<size_t>(FontFaceSet::LoadStatus::Loading) == 0, "FontFaceSet::LoadStatus::Loading is not 0 as expected");
    static_assert(static_cast<size_t>(FontFaceSet::LoadStatus::Loaded) == 1, "FontFaceSet::LoadStatus::Loaded is not 1 as expected");
    ASSERT(static_cast<size_t>(enumerationValue) < WTF_ARRAY_LENGTH(values));
    return jsStringWithCache(state, values[static_cast<size_t>(enumerationValue)]);
}

template<> struct JSValueTraits<FontFaceSet::LoadStatus> {
    static JSString* arrayJSValue(ExecState* state, JSDOMGlobalObject*, FontFaceSet::LoadStatus value) { return jsStringWithCache(state, value); }
};

template<> Optional<FontFaceSet::LoadStatus> parse<FontFaceSet::LoadStatus>(ExecState& state, JSValue value)
{
    auto stringValue = value.toWTFString(&state);
    if (stringValue == "loading")
        return FontFaceSet::LoadStatus::Loading;
    if (stringValue == "loaded")
        return FontFaceSet::LoadStatus::Loaded;
    return Nullopt;
}

template<> FontFaceSet::LoadStatus convert<FontFaceSet::LoadStatus>(ExecState& state, JSValue value)
{
    VM& vm = state.vm();
    auto throwScope = DECLARE_THROW_SCOPE(vm);
    auto result = parse<FontFaceSet::LoadStatus>(state, value);
    if (UNLIKELY(!result)) {
        throwTypeError(&state, throwScope);
        return { };
    }
    return result.value();
}

template<> inline const char* expectedEnumerationValues<FontFaceSet::LoadStatus>()
{
    return "\"loading\", \"loaded\"";
}

// Functions

JSC::EncodedJSValue JSC_HOST_CALL jsFontFaceSetPrototypeFunctionHas(JSC::ExecState*);
JSC::EncodedJSValue JSC_HOST_CALL jsFontFaceSetPrototypeFunctionAdd(JSC::ExecState*);
JSC::EncodedJSValue JSC_HOST_CALL jsFontFaceSetPrototypeFunctionDelete(JSC::ExecState*);
JSC::EncodedJSValue JSC_HOST_CALL jsFontFaceSetPrototypeFunctionClear(JSC::ExecState*);
JSC::EncodedJSValue JSC_HOST_CALL jsFontFaceSetPrototypeFunctionLoad(JSC::ExecState*);
JSC::EncodedJSValue JSC_HOST_CALL jsFontFaceSetPrototypeFunctionCheck(JSC::ExecState*);
JSC::EncodedJSValue JSC_HOST_CALL jsFontFaceSetPrototypeFunctionSymbolIterator(JSC::ExecState*);
JSC::EncodedJSValue JSC_HOST_CALL jsFontFaceSetPrototypeFunctionEntries(JSC::ExecState*);
JSC::EncodedJSValue JSC_HOST_CALL jsFontFaceSetPrototypeFunctionKeys(JSC::ExecState*);
JSC::EncodedJSValue JSC_HOST_CALL jsFontFaceSetPrototypeFunctionValues(JSC::ExecState*);
JSC::EncodedJSValue JSC_HOST_CALL jsFontFaceSetPrototypeFunctionForEach(JSC::ExecState*);

// Attributes

JSC::EncodedJSValue jsFontFaceSetSize(JSC::ExecState*, JSC::EncodedJSValue, JSC::PropertyName);
JSC::EncodedJSValue jsFontFaceSetOnloading(JSC::ExecState*, JSC::EncodedJSValue, JSC::PropertyName);
bool setJSFontFaceSetOnloading(JSC::ExecState*, JSC::EncodedJSValue, JSC::EncodedJSValue);
JSC::EncodedJSValue jsFontFaceSetOnloadingdone(JSC::ExecState*, JSC::EncodedJSValue, JSC::PropertyName);
bool setJSFontFaceSetOnloadingdone(JSC::ExecState*, JSC::EncodedJSValue, JSC::EncodedJSValue);
JSC::EncodedJSValue jsFontFaceSetOnloadingerror(JSC::ExecState*, JSC::EncodedJSValue, JSC::PropertyName);
bool setJSFontFaceSetOnloadingerror(JSC::ExecState*, JSC::EncodedJSValue, JSC::EncodedJSValue);
JSC::EncodedJSValue jsFontFaceSetReady(JSC::ExecState*, JSC::EncodedJSValue, JSC::PropertyName);
JSC::EncodedJSValue jsFontFaceSetStatus(JSC::ExecState*, JSC::EncodedJSValue, JSC::PropertyName);
JSC::EncodedJSValue jsFontFaceSetConstructor(JSC::ExecState*, JSC::EncodedJSValue, JSC::PropertyName);
bool setJSFontFaceSetConstructor(JSC::ExecState*, JSC::EncodedJSValue, JSC::EncodedJSValue);

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

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

typedef JSDOMConstructor<JSFontFaceSet> JSFontFaceSetConstructor;

template<> EncodedJSValue JSC_HOST_CALL JSFontFaceSetConstructor::construct(ExecState* state)
{
    VM& vm = state->vm();
    auto throwScope = DECLARE_THROW_SCOPE(vm);
    UNUSED_PARAM(throwScope);
    auto* castedThis = jsCast<JSFontFaceSetConstructor*>(state->callee());
    ASSERT(castedThis);
    if (UNLIKELY(state->argumentCount() < 1))
        return throwVMError(state, throwScope, createNotEnoughArgumentsError(state));
    auto initialFaces = toRefPtrNativeArray<FontFace, JSFontFace>(*state, state->uncheckedArgument(0));
    RETURN_IF_EXCEPTION(throwScope, encodedJSValue());
    ScriptExecutionContext* context = castedThis->scriptExecutionContext();
    if (UNLIKELY(!context))
        return throwConstructorScriptExecutionContextUnavailableError(*state, throwScope, "FontFaceSet");
    ASSERT(context->isDocument());
    auto& document = downcast<Document>(*context);
    auto object = FontFaceSet::create(document, WTFMove(initialFaces));
    return JSValue::encode(toJSNewlyCreated(state, castedThis->globalObject(), WTFMove(object)));
}

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

template<> void JSFontFaceSetConstructor::initializeProperties(VM& vm, JSDOMGlobalObject& globalObject)
{
    putDirect(vm, vm.propertyNames->prototype, JSFontFaceSet::prototype(vm, &globalObject), DontDelete | ReadOnly | DontEnum);
    putDirect(vm, vm.propertyNames->name, jsNontrivialString(&vm, String(ASCIILiteral("FontFaceSet"))), ReadOnly | DontEnum);
    putDirect(vm, vm.propertyNames->length, jsNumber(1), ReadOnly | DontEnum);
}

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

/* Hash table for prototype */

static const HashTableValue JSFontFaceSetPrototypeTableValues[] =
{
    { "constructor", DontEnum, NoIntrinsic, { (intptr_t)static_cast<PropertySlot::GetValueFunc>(jsFontFaceSetConstructor), (intptr_t) static_cast<PutPropertySlot::PutValueFunc>(setJSFontFaceSetConstructor) } },
    { "size", ReadOnly | CustomAccessor, NoIntrinsic, { (intptr_t)static_cast<PropertySlot::GetValueFunc>(jsFontFaceSetSize), (intptr_t) static_cast<PutPropertySlot::PutValueFunc>(0) } },
    { "onloading", CustomAccessor, NoIntrinsic, { (intptr_t)static_cast<PropertySlot::GetValueFunc>(jsFontFaceSetOnloading), (intptr_t) static_cast<PutPropertySlot::PutValueFunc>(setJSFontFaceSetOnloading) } },
    { "onloadingdone", CustomAccessor, NoIntrinsic, { (intptr_t)static_cast<PropertySlot::GetValueFunc>(jsFontFaceSetOnloadingdone), (intptr_t) static_cast<PutPropertySlot::PutValueFunc>(setJSFontFaceSetOnloadingdone) } },
    { "onloadingerror", CustomAccessor, NoIntrinsic, { (intptr_t)static_cast<PropertySlot::GetValueFunc>(jsFontFaceSetOnloadingerror), (intptr_t) static_cast<PutPropertySlot::PutValueFunc>(setJSFontFaceSetOnloadingerror) } },
    { "ready", ReadOnly | CustomAccessor, NoIntrinsic, { (intptr_t)static_cast<PropertySlot::GetValueFunc>(jsFontFaceSetReady), (intptr_t) static_cast<PutPropertySlot::PutValueFunc>(0) } },
    { "status", ReadOnly | CustomAccessor, NoIntrinsic, { (intptr_t)static_cast<PropertySlot::GetValueFunc>(jsFontFaceSetStatus), (intptr_t) static_cast<PutPropertySlot::PutValueFunc>(0) } },
    { "has", JSC::Function, NoIntrinsic, { (intptr_t)static_cast<NativeFunction>(jsFontFaceSetPrototypeFunctionHas), (intptr_t) (1) } },
    { "add", JSC::Function, NoIntrinsic, { (intptr_t)static_cast<NativeFunction>(jsFontFaceSetPrototypeFunctionAdd), (intptr_t) (1) } },
    { "delete", JSC::Function, NoIntrinsic, { (intptr_t)static_cast<NativeFunction>(jsFontFaceSetPrototypeFunctionDelete), (intptr_t) (1) } },
    { "clear", JSC::Function, NoIntrinsic, { (intptr_t)static_cast<NativeFunction>(jsFontFaceSetPrototypeFunctionClear), (intptr_t) (0) } },
    { "load", JSC::Function, NoIntrinsic, { (intptr_t)static_cast<NativeFunction>(jsFontFaceSetPrototypeFunctionLoad), (intptr_t) (1) } },
    { "check", JSC::Function, NoIntrinsic, { (intptr_t)static_cast<NativeFunction>(jsFontFaceSetPrototypeFunctionCheck), (intptr_t) (1) } },
    { "entries", JSC::Function, NoIntrinsic, { (intptr_t)static_cast<NativeFunction>(jsFontFaceSetPrototypeFunctionEntries), (intptr_t) (0) } },
    { "keys", JSC::Function, NoIntrinsic, { (intptr_t)static_cast<NativeFunction>(jsFontFaceSetPrototypeFunctionKeys), (intptr_t) (0) } },
    { "values", JSC::Function, NoIntrinsic, { (intptr_t)static_cast<NativeFunction>(jsFontFaceSetPrototypeFunctionValues), (intptr_t) (0) } },
    { "forEach", JSC::Function, NoIntrinsic, { (intptr_t)static_cast<NativeFunction>(jsFontFaceSetPrototypeFunctionForEach), (intptr_t) (1) } },
};

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

void JSFontFaceSetPrototype::finishCreation(VM& vm)
{
    Base::finishCreation(vm);
    reifyStaticProperties(vm, JSFontFaceSetPrototypeTableValues, *this);
    if (!RuntimeEnabledFeatures::sharedFeatures().domIteratorEnabled()) {
        Identifier propertyName = Identifier::fromString(&vm, reinterpret_cast<const LChar*>("entries"), strlen("entries"));
        VM::DeletePropertyModeScope scope(vm, VM::DeletePropertyMode::IgnoreConfigurable);
        JSObject::deleteProperty(this, globalObject()->globalExec(), propertyName);
    }
    if (!RuntimeEnabledFeatures::sharedFeatures().domIteratorEnabled()) {
        Identifier propertyName = Identifier::fromString(&vm, reinterpret_cast<const LChar*>("keys"), strlen("keys"));
        VM::DeletePropertyModeScope scope(vm, VM::DeletePropertyMode::IgnoreConfigurable);
        JSObject::deleteProperty(this, globalObject()->globalExec(), propertyName);
    }
    if (!RuntimeEnabledFeatures::sharedFeatures().domIteratorEnabled()) {
        Identifier propertyName = Identifier::fromString(&vm, reinterpret_cast<const LChar*>("values"), strlen("values"));
        VM::DeletePropertyModeScope scope(vm, VM::DeletePropertyMode::IgnoreConfigurable);
        JSObject::deleteProperty(this, globalObject()->globalExec(), propertyName);
    }
    if (!RuntimeEnabledFeatures::sharedFeatures().domIteratorEnabled()) {
        Identifier propertyName = Identifier::fromString(&vm, reinterpret_cast<const LChar*>("forEach"), strlen("forEach"));
        VM::DeletePropertyModeScope scope(vm, VM::DeletePropertyMode::IgnoreConfigurable);
        JSObject::deleteProperty(this, globalObject()->globalExec(), propertyName);
    }
    if (RuntimeEnabledFeatures::sharedFeatures().domIteratorEnabled()) {
        putDirect(vm, vm.propertyNames->iteratorSymbol, JSFunction::create(vm, globalObject(), 0, ASCIILiteral("[Symbol.Iterator]"), jsFontFaceSetPrototypeFunctionSymbolIterator), DontEnum);
    }
}

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

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

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

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

EncodedJSValue jsFontFaceSetSize(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<JSFontFaceSet*>(decodedThisValue);
    if (UNLIKELY(!castedThis)) {
        return throwGetterTypeError(*state, throwScope, "FontFaceSet", "size");
    }
    auto& impl = castedThis->wrapped();
    JSValue result = jsNumber(impl.size());
    return JSValue::encode(result);
}


EncodedJSValue jsFontFaceSetOnloading(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<JSFontFaceSet*>(decodedThisValue);
    if (UNLIKELY(!castedThis)) {
        return throwGetterTypeError(*state, throwScope, "FontFaceSet", "onloading");
    }
    UNUSED_PARAM(state);
    return JSValue::encode(eventHandlerAttribute(castedThis->wrapped(), eventNames().loadingEvent));
}


EncodedJSValue jsFontFaceSetOnloadingdone(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<JSFontFaceSet*>(decodedThisValue);
    if (UNLIKELY(!castedThis)) {
        return throwGetterTypeError(*state, throwScope, "FontFaceSet", "onloadingdone");
    }
    UNUSED_PARAM(state);
    return JSValue::encode(eventHandlerAttribute(castedThis->wrapped(), eventNames().loadingdoneEvent));
}


EncodedJSValue jsFontFaceSetOnloadingerror(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<JSFontFaceSet*>(decodedThisValue);
    if (UNLIKELY(!castedThis)) {
        return throwGetterTypeError(*state, throwScope, "FontFaceSet", "onloadingerror");
    }
    UNUSED_PARAM(state);
    return JSValue::encode(eventHandlerAttribute(castedThis->wrapped(), eventNames().loadingerrorEvent));
}


EncodedJSValue jsFontFaceSetReady(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<JSFontFaceSet*>(decodedThisValue);
    if (UNLIKELY(!castedThis)) {
        return throwGetterTypeError(*state, throwScope, "FontFaceSet", "ready");
    }
    return JSValue::encode(castedThis->ready(*state));
}


EncodedJSValue jsFontFaceSetStatus(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<JSFontFaceSet*>(decodedThisValue);
    if (UNLIKELY(!castedThis)) {
        return throwGetterTypeError(*state, throwScope, "FontFaceSet", "status");
    }
    auto& impl = castedThis->wrapped();
    JSValue result = jsStringWithCache(state, impl.status());
    return JSValue::encode(result);
}


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

bool setJSFontFaceSetConstructor(ExecState* state, EncodedJSValue thisValue, EncodedJSValue encodedValue)
{
    VM& vm = state->vm();
    auto throwScope = DECLARE_THROW_SCOPE(vm);
    JSValue value = JSValue::decode(encodedValue);
    JSFontFaceSetPrototype* domObject = jsDynamicCast<JSFontFaceSetPrototype*>(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 setJSFontFaceSetOnloading(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);
    JSFontFaceSet* castedThis = jsDynamicCast<JSFontFaceSet*>(JSValue::decode(thisValue));
    if (UNLIKELY(!castedThis)) {
        return throwSetterTypeError(*state, throwScope, "FontFaceSet", "onloading");
    }
    setEventHandlerAttribute(*state, *castedThis, castedThis->wrapped(), eventNames().loadingEvent, value);
    return true;
}


bool setJSFontFaceSetOnloadingdone(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);
    JSFontFaceSet* castedThis = jsDynamicCast<JSFontFaceSet*>(JSValue::decode(thisValue));
    if (UNLIKELY(!castedThis)) {
        return throwSetterTypeError(*state, throwScope, "FontFaceSet", "onloadingdone");
    }
    setEventHandlerAttribute(*state, *castedThis, castedThis->wrapped(), eventNames().loadingdoneEvent, value);
    return true;
}


bool setJSFontFaceSetOnloadingerror(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);
    JSFontFaceSet* castedThis = jsDynamicCast<JSFontFaceSet*>(JSValue::decode(thisValue));
    if (UNLIKELY(!castedThis)) {
        return throwSetterTypeError(*state, throwScope, "FontFaceSet", "onloadingerror");
    }
    setEventHandlerAttribute(*state, *castedThis, castedThis->wrapped(), eventNames().loadingerrorEvent, value);
    return true;
}


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

EncodedJSValue JSC_HOST_CALL jsFontFaceSetPrototypeFunctionHas(ExecState* state)
{
    VM& vm = state->vm();
    auto throwScope = DECLARE_THROW_SCOPE(vm);
    UNUSED_PARAM(throwScope);
    JSValue thisValue = state->thisValue();
    auto castedThis = jsDynamicCast<JSFontFaceSet*>(thisValue);
    if (UNLIKELY(!castedThis))
        return throwThisTypeError(*state, throwScope, "FontFaceSet", "has");
    ASSERT_GC_OBJECT_INHERITS(castedThis, JSFontFaceSet::info());
    auto& impl = castedThis->wrapped();
    if (UNLIKELY(state->argumentCount() < 1))
        return throwVMError(state, throwScope, createNotEnoughArgumentsError(state));
    auto font = JSFontFace::toWrapped(state->uncheckedArgument(0));
    if (UNLIKELY(!font))
        return throwArgumentTypeError(*state, throwScope, 0, "font", "FontFaceSet", "has", "FontFace");
    JSValue result = jsBoolean(impl.has(*font));
    return JSValue::encode(result);
}

EncodedJSValue JSC_HOST_CALL jsFontFaceSetPrototypeFunctionAdd(ExecState* state)
{
    VM& vm = state->vm();
    auto throwScope = DECLARE_THROW_SCOPE(vm);
    UNUSED_PARAM(throwScope);
    JSValue thisValue = state->thisValue();
    auto castedThis = jsDynamicCast<JSFontFaceSet*>(thisValue);
    if (UNLIKELY(!castedThis))
        return throwThisTypeError(*state, throwScope, "FontFaceSet", "add");
    ASSERT_GC_OBJECT_INHERITS(castedThis, JSFontFaceSet::info());
    auto& impl = castedThis->wrapped();
    if (UNLIKELY(state->argumentCount() < 1))
        return throwVMError(state, throwScope, createNotEnoughArgumentsError(state));
    auto font = JSFontFace::toWrapped(state->uncheckedArgument(0));
    if (UNLIKELY(!font))
        return throwArgumentTypeError(*state, throwScope, 0, "font", "FontFaceSet", "add", "FontFace");
    JSValue result = toJS(state, castedThis->globalObject(), impl.add(*font));
    return JSValue::encode(result);
}

EncodedJSValue JSC_HOST_CALL jsFontFaceSetPrototypeFunctionDelete(ExecState* state)
{
    VM& vm = state->vm();
    auto throwScope = DECLARE_THROW_SCOPE(vm);
    UNUSED_PARAM(throwScope);
    JSValue thisValue = state->thisValue();
    auto castedThis = jsDynamicCast<JSFontFaceSet*>(thisValue);
    if (UNLIKELY(!castedThis))
        return throwThisTypeError(*state, throwScope, "FontFaceSet", "delete");
    ASSERT_GC_OBJECT_INHERITS(castedThis, JSFontFaceSet::info());
    auto& impl = castedThis->wrapped();
    if (UNLIKELY(state->argumentCount() < 1))
        return throwVMError(state, throwScope, createNotEnoughArgumentsError(state));
    auto font = JSFontFace::toWrapped(state->uncheckedArgument(0));
    if (UNLIKELY(!font))
        return throwArgumentTypeError(*state, throwScope, 0, "font", "FontFaceSet", "delete", "FontFace");
    JSValue result = jsBoolean(impl.remove(*font));
    return JSValue::encode(result);
}

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

static EncodedJSValue jsFontFaceSetPrototypeFunctionLoadPromise(ExecState*, Ref<DeferredPromise>&&);

EncodedJSValue JSC_HOST_CALL jsFontFaceSetPrototypeFunctionLoad(ExecState* state)
{
    ASSERT(state);
    return JSValue::encode(callPromiseFunction<jsFontFaceSetPrototypeFunctionLoadPromise, PromiseExecutionScope::WindowOnly>(*state));
}

static inline EncodedJSValue jsFontFaceSetPrototypeFunctionLoadPromise(ExecState* state, Ref<DeferredPromise>&& promise)
{
    VM& vm = state->vm();
    auto throwScope = DECLARE_THROW_SCOPE(vm);
    UNUSED_PARAM(throwScope);
    JSValue thisValue = state->thisValue();
    auto castedThis = jsDynamicCast<JSFontFaceSet*>(thisValue);
    if (UNLIKELY(!castedThis))
        return throwThisTypeError(*state, throwScope, "FontFaceSet", "load");
    ASSERT_GC_OBJECT_INHERITS(castedThis, JSFontFaceSet::info());
    auto& impl = castedThis->wrapped();
    if (UNLIKELY(state->argumentCount() < 1))
        return throwVMError(state, throwScope, createNotEnoughArgumentsError(state));
    auto font = state->uncheckedArgument(0).toWTFString(state);
    RETURN_IF_EXCEPTION(throwScope, encodedJSValue());
    auto text = state->argument(1).isUndefined() ? ASCIILiteral(" ") : state->uncheckedArgument(1).toWTFString(state);
    RETURN_IF_EXCEPTION(throwScope, encodedJSValue());
    impl.load(WTFMove(font), WTFMove(text), WTFMove(promise));
    return JSValue::encode(jsUndefined());
}

EncodedJSValue JSC_HOST_CALL jsFontFaceSetPrototypeFunctionCheck(ExecState* state)
{
    VM& vm = state->vm();
    auto throwScope = DECLARE_THROW_SCOPE(vm);
    UNUSED_PARAM(throwScope);
    JSValue thisValue = state->thisValue();
    auto castedThis = jsDynamicCast<JSFontFaceSet*>(thisValue);
    if (UNLIKELY(!castedThis))
        return throwThisTypeError(*state, throwScope, "FontFaceSet", "check");
    ASSERT_GC_OBJECT_INHERITS(castedThis, JSFontFaceSet::info());
    auto& impl = castedThis->wrapped();
    if (UNLIKELY(state->argumentCount() < 1))
        return throwVMError(state, throwScope, createNotEnoughArgumentsError(state));
    ExceptionCode ec = 0;
    auto font = state->uncheckedArgument(0).toWTFString(state);
    RETURN_IF_EXCEPTION(throwScope, encodedJSValue());
    auto text = state->argument(1).isUndefined() ? ASCIILiteral(" ") : state->uncheckedArgument(1).toWTFString(state);
    RETURN_IF_EXCEPTION(throwScope, encodedJSValue());
    JSValue result = jsBoolean(impl.check(WTFMove(font), WTFMove(text), ec));

    setDOMException(state, throwScope, ec);
    return JSValue::encode(result);
}

using FontFaceSetIterator = JSDOMIterator<JSFontFaceSet>;
using FontFaceSetIteratorPrototype = JSDOMIteratorPrototype<JSFontFaceSet>;

template<>
const JSC::ClassInfo FontFaceSetIterator::s_info = { "FontFaceSet Iterator", &Base::s_info, 0, CREATE_METHOD_TABLE(FontFaceSetIterator) };

template<>
const JSC::ClassInfo FontFaceSetIteratorPrototype::s_info = { "FontFaceSet Iterator", &Base::s_info, 0, CREATE_METHOD_TABLE(FontFaceSetIteratorPrototype) };

JSC::EncodedJSValue JSC_HOST_CALL jsFontFaceSetPrototypeFunctionSymbolIterator(JSC::ExecState* state)
{
    return iteratorCreate<JSFontFaceSet>(*state, IterationKind::Value, "[Symbol.Iterator]");
}

JSC::EncodedJSValue JSC_HOST_CALL jsFontFaceSetPrototypeFunctionEntries(JSC::ExecState* state)
{
    return iteratorCreate<JSFontFaceSet>(*state, IterationKind::KeyValue, "entries");
}

JSC::EncodedJSValue JSC_HOST_CALL jsFontFaceSetPrototypeFunctionKeys(JSC::ExecState* state)
{
    return iteratorCreate<JSFontFaceSet>(*state, IterationKind::Key, "keys");
}

JSC::EncodedJSValue JSC_HOST_CALL jsFontFaceSetPrototypeFunctionValues(JSC::ExecState* state)
{
    return iteratorCreate<JSFontFaceSet>(*state, IterationKind::Value, "values");
}

JSC::EncodedJSValue JSC_HOST_CALL jsFontFaceSetPrototypeFunctionForEach(JSC::ExecState* state)
{
    return iteratorForEach<JSFontFaceSet>(*state, "forEach");
}

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

#if ENABLE(BINDING_INTEGRITY)
#if PLATFORM(WIN)
#pragma warning(disable: 4483)
extern "C" { extern void (*const __identifier("??_7FontFaceSet@WebCore@@6B@")[])(); }
#else
extern "C" { extern void* _ZTVN7WebCore11FontFaceSetE[]; }
#endif
#endif

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

#if ENABLE(BINDING_INTEGRITY)
    void* actualVTablePointer = *(reinterpret_cast<void**>(impl.ptr()));
#if PLATFORM(WIN)
    void* expectedVTablePointer = reinterpret_cast<void*>(__identifier("??_7FontFaceSet@WebCore@@6B@"));
#else
    void* expectedVTablePointer = &_ZTVN7WebCore11FontFaceSetE[2];
#if COMPILER(CLANG)
    // If this fails FontFaceSet does not have a vtable, so you need to add the
    // ImplementationLacksVTable attribute to the interface definition
    static_assert(__is_polymorphic(FontFaceSet), "FontFaceSet is not polymorphic");
#endif
#endif
    // If you hit this assertion you either have a use after free bug, or
    // FontFaceSet has subclasses. If FontFaceSet has subclasses that get passed
    // to toJS() we currently require FontFaceSet you to opt out of binding hardening
    // by adding the SkipVTableValidation attribute to the interface IDL definition
    RELEASE_ASSERT(actualVTablePointer == expectedVTablePointer);
#endif
    return createWrapper<FontFaceSet>(globalObject, WTFMove(impl));
}

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

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

}