DerivedSources/WebCore/JSDOMFormData.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"
 #include "JSDOMFormData.h"

 #include "ExceptionCode.h"
 #include "JSBlob.h"
 #include "JSDOMBinding.h"
 #include "JSDOMConstructor.h"
 #include "JSHTMLFormElement.h"
 #include <runtime/Error.h>
 #include <runtime/FunctionPrototype.h>
 #include <wtf/GetPtr.h>

 using namespace JSC;

 namespace WebCore {

 // Functions

 JSC::EncodedJSValue JSC_HOST_CALL jsDOMFormDataPrototypeFunctionAppend(JSC::ExecState*);

 // Attributes

 JSC::EncodedJSValue jsDOMFormDataConstructor(JSC::ExecState*, JSC::EncodedJSValue, JSC::PropertyName);
 bool setJSDOMFormDataConstructor(JSC::ExecState*, JSC::EncodedJSValue, JSC::EncodedJSValue);

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

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

 typedef JSDOMConstructor<JSDOMFormData> JSDOMFormDataConstructor;

 template<> EncodedJSValue JSC_HOST_CALL JSDOMFormDataConstructor::construct(ExecState* state)
 {
     VM& vm = state->vm();
     auto throwScope = DECLARE_THROW_SCOPE(vm);
     UNUSED_PARAM(throwScope);
     auto* castedThis = jsCast<JSDOMFormDataConstructor*>(state->callee());
     ASSERT(castedThis);
     HTMLFormElement* form = nullptr;
     if (!state->argument(0).isUndefinedOrNull()) {
         form = JSHTMLFormElement::toWrapped(state->uncheckedArgument(0));
         if (UNLIKELY(!form))
             return throwArgumentTypeError(*state, throwScope, 0, "form", "FormData", nullptr, "HTMLFormElement");
     }
     auto object = DOMFormData::create(WTFMove(form));
     return JSValue::encode(toJSNewlyCreated(state, castedThis->globalObject(), WTFMove(object)));
 }

 template<> JSValue JSDOMFormDataConstructor::prototypeForStructure(JSC::VM& vm, const JSDOMGlobalObject& globalObject)
 {
     UNUSED_PARAM(vm);
     return globalObject.functionPrototype();
 }

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

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

 /* Hash table for prototype */

 static const HashTableValue JSDOMFormDataPrototypeTableValues[] =
 {
     { "constructor", DontEnum, NoIntrinsic, { (intptr_t)static_cast<PropertySlot::GetValueFunc>(jsDOMFormDataConstructor), (intptr_t) static_cast<PutPropertySlot::PutValueFunc>(setJSDOMFormDataConstructor) } },
     { "append", JSC::Function, NoIntrinsic, { (intptr_t)static_cast<NativeFunction>(jsDOMFormDataPrototypeFunctionAppend), (intptr_t) (2) } },
 };

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

 void JSDOMFormDataPrototype::finishCreation(VM& vm)
 {
     Base::finishCreation(vm);
     reifyStaticProperties(vm, JSDOMFormDataPrototypeTableValues, *this);
 }

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

 JSDOMFormData::JSDOMFormData(Structure* structure, JSDOMGlobalObject& globalObject, Ref<DOMFormData>&& impl)
     : JSDOMWrapper<DOMFormData>(structure, globalObject, WTFMove(impl))
 {
 }

 JSObject* JSDOMFormData::createPrototype(VM& vm, JSGlobalObject* globalObject)
 {
     return JSDOMFormDataPrototype::create(vm, globalObject, JSDOMFormDataPrototype::createStructure(vm, globalObject, globalObject->objectPrototype()));
 }

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

 void JSDOMFormData::destroy(JSC::JSCell* cell)
 {
     JSDOMFormData* thisObject = static_cast<JSDOMFormData*>(cell);
     thisObject->JSDOMFormData::~JSDOMFormData();
 }

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

 bool setJSDOMFormDataConstructor(ExecState* state, EncodedJSValue thisValue, EncodedJSValue encodedValue)
 {
     VM& vm = state->vm();
     auto throwScope = DECLARE_THROW_SCOPE(vm);
     JSValue value = JSValue::decode(encodedValue);
     JSDOMFormDataPrototype* domObject = jsDynamicCast<JSDOMFormDataPrototype*>(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);
 }

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

 static inline EncodedJSValue jsDOMFormDataPrototypeFunctionAppend1(ExecState* state)
 {
     VM& vm = state->vm();
     auto throwScope = DECLARE_THROW_SCOPE(vm);
     UNUSED_PARAM(throwScope);
     JSValue thisValue = state->thisValue();
     auto castedThis = jsDynamicCast<JSDOMFormData*>(thisValue);
     if (UNLIKELY(!castedThis))
         return throwThisTypeError(*state, throwScope, "FormData", "append");
     ASSERT_GC_OBJECT_INHERITS(castedThis, JSDOMFormData::info());
     auto& impl = castedThis->wrapped();
     if (UNLIKELY(state->argumentCount() < 2))
         return throwVMError(state, throwScope, createNotEnoughArgumentsError(state));
     auto name = valueToUSVString(state, state->uncheckedArgument(0));
     RETURN_IF_EXCEPTION(throwScope, encodedJSValue());
     auto value = valueToUSVString(state, state->uncheckedArgument(1));
     RETURN_IF_EXCEPTION(throwScope, encodedJSValue());
     impl.append(WTFMove(name), WTFMove(value));
     return JSValue::encode(jsUndefined());
 }

 static inline EncodedJSValue jsDOMFormDataPrototypeFunctionAppend2(ExecState* state)
 {
     VM& vm = state->vm();
     auto throwScope = DECLARE_THROW_SCOPE(vm);
     UNUSED_PARAM(throwScope);
     JSValue thisValue = state->thisValue();
     auto castedThis = jsDynamicCast<JSDOMFormData*>(thisValue);
     if (UNLIKELY(!castedThis))
         return throwThisTypeError(*state, throwScope, "FormData", "append");
     ASSERT_GC_OBJECT_INHERITS(castedThis, JSDOMFormData::info());
     auto& impl = castedThis->wrapped();
     if (UNLIKELY(state->argumentCount() < 2))
         return throwVMError(state, throwScope, createNotEnoughArgumentsError(state));
     auto name = valueToUSVString(state, state->uncheckedArgument(0));
     RETURN_IF_EXCEPTION(throwScope, encodedJSValue());
     auto value = JSBlob::toWrapped(state->uncheckedArgument(1));
     if (UNLIKELY(!value))
         return throwArgumentTypeError(*state, throwScope, 1, "value", "FormData", "append", "Blob");
     auto filename = state->argument(2).isUndefined() ? String() : valueToUSVString(state, state->uncheckedArgument(2));
     RETURN_IF_EXCEPTION(throwScope, encodedJSValue());
     impl.append(WTFMove(name), *value, WTFMove(filename));
     return JSValue::encode(jsUndefined());
 }

 EncodedJSValue JSC_HOST_CALL jsDOMFormDataPrototypeFunctionAppend(ExecState* state)
 {
     VM& vm = state->vm();
     auto throwScope = DECLARE_THROW_SCOPE(vm);
     UNUSED_PARAM(throwScope);
     size_t argsCount = std::min<size_t>(3, state->argumentCount());
     if (argsCount == 2) {
         JSValue distinguishingArg = state->uncheckedArgument(1);
         if (distinguishingArg.isObject() && asObject(distinguishingArg)->inherits(JSBlob::info()))
             return jsDOMFormDataPrototypeFunctionAppend2(state);
         return jsDOMFormDataPrototypeFunctionAppend1(state);
     }
     if (argsCount == 3) {
         return jsDOMFormDataPrototypeFunctionAppend2(state);
     }
     return argsCount < 2 ? throwVMError(state, throwScope, createNotEnoughArgumentsError(state)) : throwVMTypeError(state, throwScope);
 }

 bool JSDOMFormDataOwner::isReachableFromOpaqueRoots(JSC::Handle<JSC::Unknown> handle, void*, SlotVisitor& visitor)
 {
     UNUSED_PARAM(handle);
     UNUSED_PARAM(visitor);
     return false;
 }

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

 JSC::JSValue toJSNewlyCreated(JSC::ExecState*, JSDOMGlobalObject* globalObject, Ref<DOMFormData>&& impl)
 {
 #if COMPILER(CLANG)
     // If you hit this failure the interface definition has the ImplementationLacksVTable
     // attribute. You should remove that attribute. If the class has subclasses
     // that may be passed through this toJS() function you should use the SkipVTableValidation
     // attribute to DOMFormData.
     static_assert(!__is_polymorphic(DOMFormData), "DOMFormData is polymorphic but the IDL claims it is not");
 #endif
     return createWrapper<DOMFormData>(globalObject, WTFMove(impl));
 }

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

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

 }
	/*
	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 "JSDOMFormData.h"

	#include "ExceptionCode.h"
	#include "JSBlob.h"
	#include "JSDOMBinding.h"
	#include "JSDOMConstructor.h"
	#include "JSHTMLFormElement.h"
	#include <runtime/Error.h>
	#include <runtime/FunctionPrototype.h>
	#include <wtf/GetPtr.h>

	using namespace JSC;

	namespace WebCore {

	// Functions

	JSC::EncodedJSValue JSC_HOST_CALL jsDOMFormDataPrototypeFunctionAppend(JSC::ExecState*);

	// Attributes

	JSC::EncodedJSValue jsDOMFormDataConstructor(JSC::ExecState*, JSC::EncodedJSValue, JSC::PropertyName);
	bool setJSDOMFormDataConstructor(JSC::ExecState*, JSC::EncodedJSValue, JSC::EncodedJSValue);

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

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

	typedef JSDOMConstructor<JSDOMFormData> JSDOMFormDataConstructor;

	template<> EncodedJSValue JSC_HOST_CALL JSDOMFormDataConstructor::construct(ExecState* state)
	{
	VM& vm = state->vm();
	auto throwScope = DECLARE_THROW_SCOPE(vm);
	UNUSED_PARAM(throwScope);
	auto* castedThis = jsCast<JSDOMFormDataConstructor*>(state->callee());
	ASSERT(castedThis);
	HTMLFormElement* form = nullptr;
	if (!state->argument(0).isUndefinedOrNull()) {
	form = JSHTMLFormElement::toWrapped(state->uncheckedArgument(0));
	if (UNLIKELY(!form))
	return throwArgumentTypeError(*state, throwScope, 0, "form", "FormData", nullptr, "HTMLFormElement");
	}
	auto object = DOMFormData::create(WTFMove(form));
	return JSValue::encode(toJSNewlyCreated(state, castedThis->globalObject(), WTFMove(object)));
	}

	template<> JSValue JSDOMFormDataConstructor::prototypeForStructure(JSC::VM& vm, const JSDOMGlobalObject& globalObject)
	{
	UNUSED_PARAM(vm);
	return globalObject.functionPrototype();
	}

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

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

	/* Hash table for prototype */

	static const HashTableValue JSDOMFormDataPrototypeTableValues[] =
	{
	{ "constructor", DontEnum, NoIntrinsic, { (intptr_t)static_cast<PropertySlot::GetValueFunc>(jsDOMFormDataConstructor), (intptr_t) static_cast<PutPropertySlot::PutValueFunc>(setJSDOMFormDataConstructor) } },
	{ "append", JSC::Function, NoIntrinsic, { (intptr_t)static_cast<NativeFunction>(jsDOMFormDataPrototypeFunctionAppend), (intptr_t) (2) } },
	};

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

	void JSDOMFormDataPrototype::finishCreation(VM& vm)
	{
	Base::finishCreation(vm);
	reifyStaticProperties(vm, JSDOMFormDataPrototypeTableValues, *this);
	}

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

	JSDOMFormData::JSDOMFormData(Structure* structure, JSDOMGlobalObject& globalObject, Ref<DOMFormData>&& impl)
	: JSDOMWrapper<DOMFormData>(structure, globalObject, WTFMove(impl))
	{
	}

	JSObject* JSDOMFormData::createPrototype(VM& vm, JSGlobalObject* globalObject)
	{
	return JSDOMFormDataPrototype::create(vm, globalObject, JSDOMFormDataPrototype::createStructure(vm, globalObject, globalObject->objectPrototype()));
	}

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

	void JSDOMFormData::destroy(JSC::JSCell* cell)
	{
	JSDOMFormData* thisObject = static_cast<JSDOMFormData*>(cell);
	thisObject->JSDOMFormData::~JSDOMFormData();
	}

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

	bool setJSDOMFormDataConstructor(ExecState* state, EncodedJSValue thisValue, EncodedJSValue encodedValue)
	{
	VM& vm = state->vm();
	auto throwScope = DECLARE_THROW_SCOPE(vm);
	JSValue value = JSValue::decode(encodedValue);
	JSDOMFormDataPrototype* domObject = jsDynamicCast<JSDOMFormDataPrototype*>(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);
	}

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

	static inline EncodedJSValue jsDOMFormDataPrototypeFunctionAppend1(ExecState* state)
	{
	VM& vm = state->vm();
	auto throwScope = DECLARE_THROW_SCOPE(vm);
	UNUSED_PARAM(throwScope);
	JSValue thisValue = state->thisValue();
	auto castedThis = jsDynamicCast<JSDOMFormData*>(thisValue);
	if (UNLIKELY(!castedThis))
	return throwThisTypeError(*state, throwScope, "FormData", "append");
	ASSERT_GC_OBJECT_INHERITS(castedThis, JSDOMFormData::info());
	auto& impl = castedThis->wrapped();
	if (UNLIKELY(state->argumentCount() < 2))
	return throwVMError(state, throwScope, createNotEnoughArgumentsError(state));
	auto name = valueToUSVString(state, state->uncheckedArgument(0));
	RETURN_IF_EXCEPTION(throwScope, encodedJSValue());
	auto value = valueToUSVString(state, state->uncheckedArgument(1));
	RETURN_IF_EXCEPTION(throwScope, encodedJSValue());
	impl.append(WTFMove(name), WTFMove(value));
	return JSValue::encode(jsUndefined());
	}

	static inline EncodedJSValue jsDOMFormDataPrototypeFunctionAppend2(ExecState* state)
	{
	VM& vm = state->vm();
	auto throwScope = DECLARE_THROW_SCOPE(vm);
	UNUSED_PARAM(throwScope);
	JSValue thisValue = state->thisValue();
	auto castedThis = jsDynamicCast<JSDOMFormData*>(thisValue);
	if (UNLIKELY(!castedThis))
	return throwThisTypeError(*state, throwScope, "FormData", "append");
	ASSERT_GC_OBJECT_INHERITS(castedThis, JSDOMFormData::info());
	auto& impl = castedThis->wrapped();
	if (UNLIKELY(state->argumentCount() < 2))
	return throwVMError(state, throwScope, createNotEnoughArgumentsError(state));
	auto name = valueToUSVString(state, state->uncheckedArgument(0));
	RETURN_IF_EXCEPTION(throwScope, encodedJSValue());
	auto value = JSBlob::toWrapped(state->uncheckedArgument(1));
	if (UNLIKELY(!value))
	return throwArgumentTypeError(*state, throwScope, 1, "value", "FormData", "append", "Blob");
	auto filename = state->argument(2).isUndefined() ? String() : valueToUSVString(state, state->uncheckedArgument(2));
	RETURN_IF_EXCEPTION(throwScope, encodedJSValue());
	impl.append(WTFMove(name), *value, WTFMove(filename));
	return JSValue::encode(jsUndefined());
	}

	EncodedJSValue JSC_HOST_CALL jsDOMFormDataPrototypeFunctionAppend(ExecState* state)
	{
	VM& vm = state->vm();
	auto throwScope = DECLARE_THROW_SCOPE(vm);
	UNUSED_PARAM(throwScope);
	size_t argsCount = std::min<size_t>(3, state->argumentCount());
	if (argsCount == 2) {
	JSValue distinguishingArg = state->uncheckedArgument(1);
	if (distinguishingArg.isObject() && asObject(distinguishingArg)->inherits(JSBlob::info()))
	return jsDOMFormDataPrototypeFunctionAppend2(state);
	return jsDOMFormDataPrototypeFunctionAppend1(state);
	}
	if (argsCount == 3) {
	return jsDOMFormDataPrototypeFunctionAppend2(state);
	}
	return argsCount < 2 ? throwVMError(state, throwScope, createNotEnoughArgumentsError(state)) : throwVMTypeError(state, throwScope);
	}

	bool JSDOMFormDataOwner::isReachableFromOpaqueRoots(JSC::Handle<JSC::Unknown> handle, void*, SlotVisitor& visitor)
	{
	UNUSED_PARAM(handle);
	UNUSED_PARAM(visitor);
	return false;
	}

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

	JSC::JSValue toJSNewlyCreated(JSC::ExecState, JSDOMGlobalObject globalObject, Ref<DOMFormData>&& impl)
	{
	#if COMPILER(CLANG)
	// If you hit this failure the interface definition has the ImplementationLacksVTable
	// attribute. You should remove that attribute. If the class has subclasses
	// that may be passed through this toJS() function you should use the SkipVTableValidation
	// attribute to DOMFormData.
	static_assert(!__is_polymorphic(DOMFormData), "DOMFormData is polymorphic but the IDL claims it is not");
	#endif
	return createWrapper<DOMFormData>(globalObject, WTFMove(impl));
	}

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

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

	}