/* 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(CHANNEL_MESSAGING) #include "JSMessageChannel.h" #include "ActiveDOMObject.h" #include "ExtendedDOMClientIsoSubspaces.h" #include "ExtendedDOMIsoSubspaces.h" #include "JSDOMAttribute.h" #include "JSDOMBinding.h" #include "JSDOMConstructor.h" #include "JSDOMConvertInterface.h" #include "JSDOMExceptionHandling.h" #include "JSDOMGlobalObject.h" #include "JSDOMGlobalObjectInlines.h" #include "JSDOMWrapperCache.h" #include "JSMessagePort.h" #include "ScriptExecutionContext.h" #include "WebCoreJSClientData.h" #include #include #include #include #include #include #include #include #include namespace WebCore { using namespace JSC; // Attributes static JSC_DECLARE_CUSTOM_GETTER(jsMessageChannelConstructor); static JSC_DECLARE_CUSTOM_GETTER(jsMessageChannel_port1); static JSC_DECLARE_CUSTOM_GETTER(jsMessageChannel_port2); class JSMessageChannelPrototype final : public JSC::JSNonFinalObject { public: using Base = JSC::JSNonFinalObject; static JSMessageChannelPrototype* create(JSC::VM& vm, JSDOMGlobalObject* globalObject, JSC::Structure* structure) { JSMessageChannelPrototype* ptr = new (NotNull, JSC::allocateCell(vm)) JSMessageChannelPrototype(vm, globalObject, structure); ptr->finishCreation(vm); return ptr; } DECLARE_INFO; template static JSC::GCClient::IsoSubspace* subspaceFor(JSC::VM& vm) { STATIC_ASSERT_ISO_SUBSPACE_SHARABLE(JSMessageChannelPrototype, Base); return &vm.plainObjectSpace(); } 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: JSMessageChannelPrototype(JSC::VM& vm, JSC::JSGlobalObject*, JSC::Structure* structure) : JSC::JSNonFinalObject(vm, structure) { } void finishCreation(JSC::VM&); }; STATIC_ASSERT_ISO_SUBSPACE_SHARABLE(JSMessageChannelPrototype, JSMessageChannelPrototype::Base); using JSMessageChannelDOMConstructor = JSDOMConstructor; template<> EncodedJSValue JSC_HOST_CALL_ATTRIBUTES JSMessageChannelDOMConstructor::construct(JSGlobalObject* lexicalGlobalObject, CallFrame* callFrame) { VM& vm = lexicalGlobalObject->vm(); auto throwScope = DECLARE_THROW_SCOPE(vm); auto* castedThis = jsCast(callFrame->jsCallee()); ASSERT(castedThis); auto* context = castedThis->scriptExecutionContext(); if (UNLIKELY(!context)) return throwConstructorScriptExecutionContextUnavailableError(*lexicalGlobalObject, throwScope, "MessageChannel"); auto object = MessageChannel::create(*context); if constexpr (IsExceptionOr) RETURN_IF_EXCEPTION(throwScope, { }); static_assert(TypeOrExceptionOrUnderlyingType::isRef); auto jsValue = toJSNewlyCreated>(*lexicalGlobalObject, *castedThis->globalObject(), throwScope, WTFMove(object)); if constexpr (IsExceptionOr) RETURN_IF_EXCEPTION(throwScope, { }); setSubclassStructureIfNeeded(lexicalGlobalObject, callFrame, asObject(jsValue)); RETURN_IF_EXCEPTION(throwScope, { }); return JSValue::encode(jsValue); } JSC_ANNOTATE_HOST_FUNCTION(JSMessageChannelDOMConstructorConstruct, JSMessageChannelDOMConstructor::construct); template<> const ClassInfo JSMessageChannelDOMConstructor::s_info = { "MessageChannel"_s, &Base::s_info, nullptr, nullptr, CREATE_METHOD_TABLE(JSMessageChannelDOMConstructor) }; template<> JSValue JSMessageChannelDOMConstructor::prototypeForStructure(JSC::VM& vm, const JSDOMGlobalObject& globalObject) { UNUSED_PARAM(vm); return globalObject.functionPrototype(); } template<> void JSMessageChannelDOMConstructor::initializeProperties(VM& vm, JSDOMGlobalObject& globalObject) { putDirect(vm, vm.propertyNames->length, jsNumber(0), JSC::PropertyAttribute::ReadOnly | JSC::PropertyAttribute::DontEnum); JSString* nameString = jsNontrivialString(vm, "MessageChannel"_s); m_originalName.set(vm, this, nameString); putDirect(vm, vm.propertyNames->name, nameString, JSC::PropertyAttribute::ReadOnly | JSC::PropertyAttribute::DontEnum); putDirect(vm, vm.propertyNames->prototype, JSMessageChannel::prototype(vm, globalObject), JSC::PropertyAttribute::ReadOnly | JSC::PropertyAttribute::DontEnum | JSC::PropertyAttribute::DontDelete); } /* Hash table for prototype */ static const HashTableValue JSMessageChannelPrototypeTableValues[] = { { "constructor", static_cast(JSC::PropertyAttribute::DontEnum), NoIntrinsic, { (intptr_t)static_cast(jsMessageChannelConstructor), (intptr_t) static_cast(0) } }, { "port1", static_cast(JSC::PropertyAttribute::ReadOnly | JSC::PropertyAttribute::CustomAccessor | JSC::PropertyAttribute::DOMAttribute), NoIntrinsic, { (intptr_t)static_cast(jsMessageChannel_port1), (intptr_t) static_cast(0) } }, { "port2", static_cast(JSC::PropertyAttribute::ReadOnly | JSC::PropertyAttribute::CustomAccessor | JSC::PropertyAttribute::DOMAttribute), NoIntrinsic, { (intptr_t)static_cast(jsMessageChannel_port2), (intptr_t) static_cast(0) } }, }; const ClassInfo JSMessageChannelPrototype::s_info = { "MessageChannel"_s, &Base::s_info, nullptr, nullptr, CREATE_METHOD_TABLE(JSMessageChannelPrototype) }; void JSMessageChannelPrototype::finishCreation(VM& vm) { Base::finishCreation(vm); reifyStaticProperties(vm, JSMessageChannel::info(), JSMessageChannelPrototypeTableValues, *this); JSC_TO_STRING_TAG_WITHOUT_TRANSITION(); } const ClassInfo JSMessageChannel::s_info = { "MessageChannel"_s, &Base::s_info, nullptr, nullptr, CREATE_METHOD_TABLE(JSMessageChannel) }; JSMessageChannel::JSMessageChannel(Structure* structure, JSDOMGlobalObject& globalObject, Ref&& impl) : JSDOMWrapper(structure, globalObject, WTFMove(impl)) { } void JSMessageChannel::finishCreation(VM& vm) { Base::finishCreation(vm); ASSERT(inherits(vm, info())); static_assert(!std::is_base_of::value, "Interface is not marked as [ActiveDOMObject] even though implementation class subclasses ActiveDOMObject."); } JSObject* JSMessageChannel::createPrototype(VM& vm, JSDOMGlobalObject& globalObject) { return JSMessageChannelPrototype::create(vm, &globalObject, JSMessageChannelPrototype::createStructure(vm, &globalObject, globalObject.objectPrototype())); } JSObject* JSMessageChannel::prototype(VM& vm, JSDOMGlobalObject& globalObject) { return getDOMPrototype(vm, globalObject); } JSValue JSMessageChannel::getConstructor(VM& vm, const JSGlobalObject* globalObject) { return getDOMConstructor(vm, *jsCast(globalObject)); } void JSMessageChannel::destroy(JSC::JSCell* cell) { JSMessageChannel* thisObject = static_cast(cell); thisObject->JSMessageChannel::~JSMessageChannel(); } JSC_DEFINE_CUSTOM_GETTER(jsMessageChannelConstructor, (JSGlobalObject* lexicalGlobalObject, EncodedJSValue thisValue, PropertyName)) { VM& vm = JSC::getVM(lexicalGlobalObject); auto throwScope = DECLARE_THROW_SCOPE(vm); auto* prototype = jsDynamicCast(vm, JSValue::decode(thisValue)); if (UNLIKELY(!prototype)) return throwVMTypeError(lexicalGlobalObject, throwScope); return JSValue::encode(JSMessageChannel::getConstructor(JSC::getVM(lexicalGlobalObject), prototype->globalObject())); } static inline JSValue jsMessageChannel_port1Getter(JSGlobalObject& lexicalGlobalObject, JSMessageChannel& thisObject) { auto& vm = JSC::getVM(&lexicalGlobalObject); auto throwScope = DECLARE_THROW_SCOPE(vm); auto& impl = thisObject.wrapped(); RELEASE_AND_RETURN(throwScope, (toJS>(lexicalGlobalObject, *thisObject.globalObject(), throwScope, impl.port1()))); } JSC_DEFINE_CUSTOM_GETTER(jsMessageChannel_port1, (JSGlobalObject* lexicalGlobalObject, EncodedJSValue thisValue, PropertyName attributeName)) { return IDLAttribute::get(*lexicalGlobalObject, thisValue, attributeName); } static inline JSValue jsMessageChannel_port2Getter(JSGlobalObject& lexicalGlobalObject, JSMessageChannel& thisObject) { auto& vm = JSC::getVM(&lexicalGlobalObject); auto throwScope = DECLARE_THROW_SCOPE(vm); auto& impl = thisObject.wrapped(); RELEASE_AND_RETURN(throwScope, (toJS>(lexicalGlobalObject, *thisObject.globalObject(), throwScope, impl.port2()))); } JSC_DEFINE_CUSTOM_GETTER(jsMessageChannel_port2, (JSGlobalObject* lexicalGlobalObject, EncodedJSValue thisValue, PropertyName attributeName)) { return IDLAttribute::get(*lexicalGlobalObject, thisValue, attributeName); } JSC::GCClient::IsoSubspace* JSMessageChannel::subspaceForImpl(JSC::VM& vm) { return WebCore::subspaceForImpl(vm, [] (auto& spaces) { return spaces.m_clientSubspaceForMessageChannel.get(); }, [] (auto& spaces, auto&& space) { spaces.m_clientSubspaceForMessageChannel = WTFMove(space); }, [] (auto& spaces) { return spaces.m_subspaceForMessageChannel.get(); }, [] (auto& spaces, auto&& space) { spaces.m_subspaceForMessageChannel = WTFMove(space); } ); } template void JSMessageChannel::visitChildrenImpl(JSCell* cell, Visitor& visitor) { auto* thisObject = jsCast(cell); ASSERT_GC_OBJECT_INHERITS(thisObject, info()); Base::visitChildren(thisObject, visitor); thisObject->visitAdditionalChildren(visitor); } DEFINE_VISIT_CHILDREN(JSMessageChannel); template void JSMessageChannel::visitOutputConstraints(JSCell* cell, Visitor& visitor) { auto* thisObject = jsCast(cell); ASSERT_GC_OBJECT_INHERITS(thisObject, info()); Base::visitOutputConstraints(thisObject, visitor); thisObject->visitAdditionalChildren(visitor); } template void JSMessageChannel::visitOutputConstraints(JSCell*, AbstractSlotVisitor&); template void JSMessageChannel::visitOutputConstraints(JSCell*, SlotVisitor&); void JSMessageChannel::analyzeHeap(JSCell* cell, HeapAnalyzer& analyzer) { auto* thisObject = jsCast(cell); analyzer.setWrappedObjectForCell(cell, &thisObject->wrapped()); if (thisObject->scriptExecutionContext()) analyzer.setLabelForCell(cell, "url " + thisObject->scriptExecutionContext()->url().string()); Base::analyzeHeap(cell, analyzer); } bool JSMessageChannelOwner::isReachableFromOpaqueRoots(JSC::Handle handle, void*, AbstractSlotVisitor& visitor, const char** reason) { UNUSED_PARAM(handle); UNUSED_PARAM(visitor); UNUSED_PARAM(reason); return false; } void JSMessageChannelOwner::finalize(JSC::Handle handle, void* context) { auto* jsMessageChannel = static_cast(handle.slot()->asCell()); auto& world = *static_cast(context); uncacheWrapper(world, &jsMessageChannel->wrapped(), jsMessageChannel); } #if ENABLE(BINDING_INTEGRITY) #if PLATFORM(WIN) #pragma warning(disable: 4483) extern "C" { extern void (*const __identifier("??_7MessageChannel@WebCore@@6B@")[])(); } #else extern "C" { extern void* _ZTVN7WebCore14MessageChannelE[]; } #endif #endif JSC::JSValue toJSNewlyCreated(JSC::JSGlobalObject*, JSDOMGlobalObject* globalObject, Ref&& impl) { if constexpr (std::is_polymorphic_v) { #if ENABLE(BINDING_INTEGRITY) const void* actualVTablePointer = getVTablePointer(impl.ptr()); #if PLATFORM(WIN) void* expectedVTablePointer = __identifier("??_7MessageChannel@WebCore@@6B@"); #else void* expectedVTablePointer = &_ZTVN7WebCore14MessageChannelE[2]; #endif // If you hit this assertion you either have a use after free bug, or // MessageChannel has subclasses. If MessageChannel has subclasses that get passed // to toJS() we currently require MessageChannel you to opt out of binding hardening // by adding the SkipVTableValidation attribute to the interface IDL definition RELEASE_ASSERT(actualVTablePointer == expectedVTablePointer); #endif } return createWrapper(globalObject, WTFMove(impl)); } JSC::JSValue toJS(JSC::JSGlobalObject* lexicalGlobalObject, JSDOMGlobalObject* globalObject, MessageChannel& impl) { return wrap(lexicalGlobalObject, globalObject, impl); } MessageChannel* JSMessageChannel::toWrapped(JSC::VM& vm, JSC::JSValue value) { if (auto* wrapper = jsDynamicCast(vm, value)) return &wrapper->wrapped(); return nullptr; } } #endif // ENABLE(CHANNEL_MESSAGING)