/* THIS FILE IS AUTOGENERATED FROM TextDecoder.webidl BY Codegen.py - DO NOT EDIT */ #include #include "AtomList.h" #include "BufferSourceBinding.h" #include "MainThreadUtils.h" #include "TextDecoderBinding.h" #include "WrapperFactory.h" #include "js/CallAndConstruct.h" #include "js/Exception.h" #include "js/MapAndSet.h" #include "js/Object.h" #include "js/PropertyAndElement.h" #include "js/PropertyDescriptor.h" #include "js/experimental/JitInfo.h" #include "jsfriendapi.h" #include "mozilla/Atomics.h" #include "mozilla/OwningNonNull.h" #include "mozilla/ProfilerLabels.h" #include "mozilla/dom/BindingCallContext.h" #include "mozilla/dom/BindingUtils.h" #include "mozilla/dom/DOMJSClass.h" #include "mozilla/dom/NonRefcountedDOMObject.h" #include "mozilla/dom/PrimitiveConversions.h" #include "mozilla/dom/ScriptSettings.h" #include "mozilla/dom/SimpleGlobalObject.h" #include "mozilla/dom/TextDecoder.h" #include "mozilla/dom/TypedArray.h" #include "mozilla/dom/XrayExpandoClass.h" namespace mozilla::dom { namespace binding_detail {}; // Just to make sure it's known as a namespace using namespace mozilla::dom::binding_detail; TextDecodeOptions::TextDecodeOptions() { // Safe to pass a null context if we pass a null value Init(nullptr, JS::NullHandleValue); } bool TextDecodeOptions::InitIds(JSContext* cx, TextDecodeOptionsAtoms* atomsCache) { MOZ_ASSERT(reinterpret_cast(atomsCache)->isVoid()); // Initialize these in reverse order so that any failure leaves the first one // uninitialized. if (!atomsCache->stream_id.init(cx, "stream")) { return false; } return true; } bool TextDecodeOptions::Init(BindingCallContext& cx, JS::Handle val, const char* sourceDescription, bool passedToJSImpl) { // Passing a null JSContext is OK only if we're initing from null, // Since in that case we will not have to do any property gets // Also evaluate isNullOrUndefined in order to avoid false-positive // checkers by static analysis tools MOZ_ASSERT_IF(!cx, val.isNull() && val.isNullOrUndefined()); TextDecodeOptionsAtoms* atomsCache = nullptr; if (cx) { atomsCache = GetAtomCache(cx); if (reinterpret_cast(atomsCache)->isVoid() && !InitIds(cx, atomsCache)) { return false; } } if (!IsConvertibleToDictionary(val)) { return cx.ThrowErrorMessage(sourceDescription, "dictionary"); } bool isNull = val.isNullOrUndefined(); // We only need these if !isNull, in which case we have |cx|. Maybe > object; Maybe > temp; if (!isNull) { MOZ_ASSERT(cx); object.emplace(cx, &val.toObject()); temp.emplace(cx); } if (!isNull) { if (!JS_GetPropertyById(cx, *object, atomsCache->stream_id, temp.ptr())) { return false; } } if (!isNull && !temp->isUndefined()) { if (!ValueToPrimitive(cx, temp.ref(), "'stream' member of TextDecodeOptions", &mStream)) { return false; } } else { mStream = false; } mIsAnyMemberPresent = true; return true; } bool TextDecodeOptions::Init(JSContext* cx_, JS::Handle val, const char* sourceDescription, bool passedToJSImpl) { // We don't want to use sourceDescription for our context here; // that's not really what it's formatted for. BindingCallContext cx(cx_, nullptr); return Init(cx, val, sourceDescription, passedToJSImpl); } void TextDecodeOptions::TraceDictionary(JSTracer* trc) { } TextDecodeOptions& TextDecodeOptions::operator=(const TextDecodeOptions& aOther) { MaybeEmptyDictionaryBase::operator=(aOther); mStream = aOther.mStream; return *this; } TextDecoderOptions::TextDecoderOptions() { // Safe to pass a null context if we pass a null value Init(nullptr, JS::NullHandleValue); } bool TextDecoderOptions::InitIds(JSContext* cx, TextDecoderOptionsAtoms* atomsCache) { MOZ_ASSERT(reinterpret_cast(atomsCache)->isVoid()); // Initialize these in reverse order so that any failure leaves the first one // uninitialized. if (!atomsCache->ignoreBOM_id.init(cx, "ignoreBOM") || !atomsCache->fatal_id.init(cx, "fatal")) { return false; } return true; } bool TextDecoderOptions::Init(BindingCallContext& cx, JS::Handle val, const char* sourceDescription, bool passedToJSImpl) { // Passing a null JSContext is OK only if we're initing from null, // Since in that case we will not have to do any property gets // Also evaluate isNullOrUndefined in order to avoid false-positive // checkers by static analysis tools MOZ_ASSERT_IF(!cx, val.isNull() && val.isNullOrUndefined()); TextDecoderOptionsAtoms* atomsCache = nullptr; if (cx) { atomsCache = GetAtomCache(cx); if (reinterpret_cast(atomsCache)->isVoid() && !InitIds(cx, atomsCache)) { return false; } } if (!IsConvertibleToDictionary(val)) { return cx.ThrowErrorMessage(sourceDescription, "dictionary"); } bool isNull = val.isNullOrUndefined(); // We only need these if !isNull, in which case we have |cx|. Maybe > object; Maybe > temp; if (!isNull) { MOZ_ASSERT(cx); object.emplace(cx, &val.toObject()); temp.emplace(cx); } if (!isNull) { if (!JS_GetPropertyById(cx, *object, atomsCache->fatal_id, temp.ptr())) { return false; } } if (!isNull && !temp->isUndefined()) { if (!ValueToPrimitive(cx, temp.ref(), "'fatal' member of TextDecoderOptions", &mFatal)) { return false; } } else { mFatal = false; } mIsAnyMemberPresent = true; if (!isNull) { if (!JS_GetPropertyById(cx, *object, atomsCache->ignoreBOM_id, temp.ptr())) { return false; } } if (!isNull && !temp->isUndefined()) { if (!ValueToPrimitive(cx, temp.ref(), "'ignoreBOM' member of TextDecoderOptions", &mIgnoreBOM)) { return false; } } else { mIgnoreBOM = false; } mIsAnyMemberPresent = true; return true; } bool TextDecoderOptions::Init(JSContext* cx_, JS::Handle val, const char* sourceDescription, bool passedToJSImpl) { // We don't want to use sourceDescription for our context here; // that's not really what it's formatted for. BindingCallContext cx(cx_, nullptr); return Init(cx, val, sourceDescription, passedToJSImpl); } void TextDecoderOptions::TraceDictionary(JSTracer* trc) { } TextDecoderOptions& TextDecoderOptions::operator=(const TextDecoderOptions& aOther) { MaybeEmptyDictionaryBase::operator=(aOther); mFatal = aOther.mFatal; mIgnoreBOM = aOther.mIgnoreBOM; return *this; } namespace TextDecoder_Binding { MOZ_CAN_RUN_SCRIPT static bool decode(JSContext* cx_, JS::Handle obj, void* void_self, const JSJitMethodCallArgs& args) { BindingCallContext cx(cx_, "TextDecoder.decode"); AUTO_PROFILER_LABEL_DYNAMIC_FAST( "TextDecoder", "decode", DOM, cx, uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_METHOD) | uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS)); auto* self = static_cast(void_self); Optional arg0; if (args.hasDefined(0)) { arg0.Construct(); if (!arg0.Value().Init(cx, args[0], "Argument 1", false)) { return false; } } binding_detail::FastTextDecodeOptions arg1; if (!arg1.Init(cx, (args.hasDefined(1)) ? args[1] : JS::NullHandleValue, "Argument 2", false)) { return false; } FastErrorResult rv; DOMString result; // NOTE: This assert does NOT call the function. static_assert(std::is_void_vDecode(Constify(arg0), Constify(arg1), result, rv))>, "Should be returning void here"); MOZ_KnownLive(self)->Decode(Constify(arg0), Constify(arg1), result, rv); if (rv.MaybeSetPendingException(cx, "TextDecoder.decode")) [[unlikely]] { return false; } MOZ_ASSERT(!JS_IsExceptionPending(cx)); if (!xpc::NonVoidStringToJsval(cx, result, args.rval())) { return false; } return true; } static const JSJitInfo decode_methodinfo = { { (JSJitGetterOp)decode }, { prototypes::id::TextDecoder }, { PrototypeTraits::Depth }, JSJitInfo::Method, JSJitInfo::AliasEverything, /* aliasSet. Not relevant for setters. */ JSVAL_TYPE_STRING, /* returnType. Not relevant for setters. */ false, /* isInfallible. False in setters. */ false, /* isMovable. Not relevant for setters. */ false, /* isEliminatable. Not relevant for setters. */ false, /* isAlwaysInSlot. Only relevant for getters. */ false, /* isLazilyCachedInSlot. Only relevant for getters. */ false, /* isTypedMethod. Only relevant for methods. */ 0 /* Reserved slot index, if we're stored in a slot, else 0. */ }; MOZ_CAN_RUN_SCRIPT static bool get_encoding(JSContext* cx, JS::Handle obj, void* void_self, JSJitGetterCallArgs args) { AUTO_PROFILER_LABEL_DYNAMIC_FAST( "TextDecoder", "encoding", DOM, cx, uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_GETTER) | uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS)); auto* self = static_cast(void_self); DOMString result; // NOTE: This assert does NOT call the function. static_assert(std::is_void_vGetEncoding(result))>, "Should be returning void here"); MOZ_KnownLive(self)->GetEncoding(result); MOZ_ASSERT(!JS_IsExceptionPending(cx)); if (!xpc::NonVoidStringToJsval(cx, result, args.rval())) { return false; } return true; } static const JSJitInfo encoding_getterinfo = { { get_encoding }, { prototypes::id::TextDecoder }, { PrototypeTraits::Depth }, JSJitInfo::Getter, JSJitInfo::AliasNone, /* aliasSet. Not relevant for setters. */ JSVAL_TYPE_STRING, /* returnType. Not relevant for setters. */ false, /* isInfallible. False in setters. */ true, /* isMovable. Not relevant for setters. */ true, /* isEliminatable. Not relevant for setters. */ false, /* isAlwaysInSlot. Only relevant for getters. */ false, /* isLazilyCachedInSlot. Only relevant for getters. */ false, /* isTypedMethod. Only relevant for methods. */ 0 /* Reserved slot index, if we're stored in a slot, else 0. */ }; MOZ_CAN_RUN_SCRIPT static bool get_fatal(JSContext* cx, JS::Handle obj, void* void_self, JSJitGetterCallArgs args) { AUTO_PROFILER_LABEL_DYNAMIC_FAST( "TextDecoder", "fatal", DOM, cx, uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_GETTER) | uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS)); auto* self = static_cast(void_self); bool result(MOZ_KnownLive(self)->Fatal()); MOZ_ASSERT(!JS_IsExceptionPending(cx)); args.rval().setBoolean(result); return true; } static const JSJitInfo fatal_getterinfo = { { get_fatal }, { prototypes::id::TextDecoder }, { PrototypeTraits::Depth }, JSJitInfo::Getter, JSJitInfo::AliasNone, /* aliasSet. Not relevant for setters. */ JSVAL_TYPE_BOOLEAN, /* returnType. Not relevant for setters. */ true, /* isInfallible. False in setters. */ true, /* isMovable. Not relevant for setters. */ true, /* isEliminatable. Not relevant for setters. */ false, /* isAlwaysInSlot. Only relevant for getters. */ false, /* isLazilyCachedInSlot. Only relevant for getters. */ false, /* isTypedMethod. Only relevant for methods. */ 0 /* Reserved slot index, if we're stored in a slot, else 0. */ }; MOZ_CAN_RUN_SCRIPT static bool get_ignoreBOM(JSContext* cx, JS::Handle obj, void* void_self, JSJitGetterCallArgs args) { AUTO_PROFILER_LABEL_DYNAMIC_FAST( "TextDecoder", "ignoreBOM", DOM, cx, uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_GETTER) | uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS)); auto* self = static_cast(void_self); bool result(MOZ_KnownLive(self)->IgnoreBOM()); MOZ_ASSERT(!JS_IsExceptionPending(cx)); args.rval().setBoolean(result); return true; } static const JSJitInfo ignoreBOM_getterinfo = { { get_ignoreBOM }, { prototypes::id::TextDecoder }, { PrototypeTraits::Depth }, JSJitInfo::Getter, JSJitInfo::AliasNone, /* aliasSet. Not relevant for setters. */ JSVAL_TYPE_BOOLEAN, /* returnType. Not relevant for setters. */ true, /* isInfallible. False in setters. */ true, /* isMovable. Not relevant for setters. */ true, /* isEliminatable. Not relevant for setters. */ false, /* isAlwaysInSlot. Only relevant for getters. */ false, /* isLazilyCachedInSlot. Only relevant for getters. */ false, /* isTypedMethod. Only relevant for methods. */ 0 /* Reserved slot index, if we're stored in a slot, else 0. */ }; static void _finalize(JS::GCContext* gcx, JSObject* obj) { mozilla::dom::TextDecoder* self = UnwrapPossiblyNotInitializedDOMObject(obj); if (self) { JS::SetNativeObjectReservedSlot(obj, DOM_OBJECT_SLOT, JS::UndefinedValue()); if (size_t mallocBytes = BindingJSObjectMallocBytes(self)) { JS::RemoveAssociatedMemory(obj, mallocBytes, JS::MemoryUse::DOMBinding); } AddForDeferredFinalization(self); } } MOZ_GLOBINIT static const JSFunctionSpec sMethods_specs[] = { JS_FNSPEC("decode", (GenericMethod), reinterpret_cast(&decode_methodinfo), 0, JSPROP_ENUMERATE, nullptr), JS_FS_END }; static const Prefable sMethods[] = { { nullptr, &sMethods_specs[0] }, { nullptr, nullptr } }; static_assert(1 <= 1ull << NUM_BITS_PROPERTY_INFO_PREF_INDEX, "We have a prefable index that is >= (1 << NUM_BITS_PROPERTY_INFO_PREF_INDEX)"); static_assert(1 <= 1ull << NUM_BITS_PROPERTY_INFO_SPEC_INDEX, "We have a spec index that is >= (1 << NUM_BITS_PROPERTY_INFO_SPEC_INDEX)"); MOZ_GLOBINIT static const JSPropertySpec sAttributes_specs[] = { JSPropertySpec::nativeAccessors("encoding", JSPROP_ENUMERATE, GenericGetter, &encoding_getterinfo, nullptr, nullptr), JSPropertySpec::nativeAccessors("fatal", JSPROP_ENUMERATE, GenericGetter, &fatal_getterinfo, nullptr, nullptr), JSPropertySpec::nativeAccessors("ignoreBOM", JSPROP_ENUMERATE, GenericGetter, &ignoreBOM_getterinfo, nullptr, nullptr), JS_PS_END }; static const Prefable sAttributes[] = { { nullptr, &sAttributes_specs[0] }, { nullptr, nullptr } }; static_assert(1 <= 1ull << NUM_BITS_PROPERTY_INFO_PREF_INDEX, "We have a prefable index that is >= (1 << NUM_BITS_PROPERTY_INFO_PREF_INDEX)"); static_assert(3 <= 1ull << NUM_BITS_PROPERTY_INFO_SPEC_INDEX, "We have a spec index that is >= (1 << NUM_BITS_PROPERTY_INFO_SPEC_INDEX)"); static uint16_t sNativeProperties_sortedPropertyIndices[4]; static PropertyInfo sNativeProperties_propertyInfos[4]; static const NativePropertiesN<2> sNativeProperties = { false, 0, false, 0, true, 0 /* sMethods */, true, 1 /* sAttributes */, false, 0, false, 0, false, 0, -1, 4, sNativeProperties_sortedPropertyIndices, { { sMethods, &sNativeProperties_propertyInfos[0] }, { sAttributes, &sNativeProperties_propertyInfos[1] } } }; static_assert(4 < 1ull << (CHAR_BIT * sizeof(sNativeProperties.propertyInfoCount)), "We have a property info count that is oversized"); bool sNativePropertiesInited = false; const NativePropertyHooks sNativePropertyHooks = { nullptr, { sNativeProperties.Upcast(), nullptr, &sNativePropertiesInited }, prototypes::id::TextDecoder, constructors::id::TextDecoder, &DefaultXrayExpandoObjectClass }; static bool _constructor(JSContext* cx_, unsigned argc, JS::Value* vp) { BindingCallContext cx(cx_, "TextDecoder constructor"); AUTO_PROFILER_LABEL_DYNAMIC_FAST( "TextDecoder", "constructor", DOM, cx, uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS)); JS::CallArgs args = JS::CallArgsFromVp(argc, vp); JS::Rooted obj(cx, &args.callee()); if (!args.isConstructing()) { return ThrowConstructorWithoutNew(cx, "TextDecoder"); } JS::Rooted desiredProto(cx); if (!GetDesiredProto(cx, args, prototypes::id::TextDecoder, CreateInterfaceObjects, &desiredProto)) { return false; } GlobalObject global(cx, obj); if (global.Failed()) { return false; } bool objIsXray = xpc::WrapperFactory::IsXrayWrapper(obj); nsAutoString arg0; if (args.hasDefined(0)) { if (!ConvertJSValueToString(cx, args[0], eStringify, eStringify, arg0)) { return false; } } else { arg0.AssignLiteral(u"utf-8"); } binding_detail::FastTextDecoderOptions arg1; if (!arg1.Init(cx, (args.hasDefined(1)) ? args[1] : JS::NullHandleValue, "Argument 2", false)) { return false; } Maybe ar; if (objIsXray) { // Since our object is an Xray, we can just CheckedUnwrapStatic: // we know Xrays have no dynamic unwrap behavior. obj = js::CheckedUnwrapStatic(obj); if (!obj) { return false; } ar.emplace(cx, obj); if (!JS_WrapObject(cx, &desiredProto)) { return false; } } FastErrorResult rv; auto result(StrongOrRawPtr(mozilla::dom::TextDecoder::Constructor(global, NonNullHelper(Constify(arg0)), Constify(arg1), rv))); if (rv.MaybeSetPendingException(cx, "TextDecoder constructor")) [[unlikely]] { return false; } MOZ_ASSERT(!JS_IsExceptionPending(cx)); static_assert(!std::is_pointer_v, "NewObject implies that we need to keep the object alive with a strong reference."); if (!WrapNewBindingNonWrapperCachedObject(cx, obj, result, args.rval(), desiredProto)) { MOZ_ASSERT(JS_IsExceptionPending(cx)); return false; } return true; } static const DOMInterfaceInfo sInterfaceObjectInfo = { { _constructor, &sNativePropertyHooks }, JS::GetRealmFunctionPrototypeHandle, PrototypeTraits::Depth, prototypes::id::TextDecoder, true, 0, "TextDecoder", }; static const DOMIfaceAndProtoJSClass sPrototypeClass = { { "TextDecoderPrototype", JSCLASS_IS_DOMIFACEANDPROTOJSCLASS | JSCLASS_HAS_RESERVED_SLOTS(DOM_INTERFACE_PROTO_SLOTS_BASE), JS_NULL_CLASS_OPS, JS_NULL_CLASS_SPEC, JS_NULL_CLASS_EXT, JS_NULL_OBJECT_OPS }, eInterfacePrototype, prototypes::id::TextDecoder, PrototypeTraits::Depth, &sNativePropertyHooks, JS::GetRealmObjectPrototype }; static JS::Handle GetProtoObjectHandle(JSContext* aCx); static const JSClassOps sClassOps = { nullptr, /* addProperty */ nullptr, /* delProperty */ nullptr, /* enumerate */ nullptr, /* newEnumerate */ nullptr, /* resolve */ nullptr, /* mayResolve */ _finalize, /* finalize */ nullptr, /* call */ nullptr, /* construct */ nullptr, /* trace */ }; static const DOMJSClass sClass = { { "TextDecoder", JSCLASS_IS_DOMJSCLASS | JSCLASS_FOREGROUND_FINALIZE | JSCLASS_HAS_RESERVED_SLOTS(1), &sClassOps, JS_NULL_CLASS_SPEC, JS_NULL_CLASS_EXT, JS_NULL_OBJECT_OPS }, { prototypes::id::TextDecoder, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count }, std::is_base_of_v, &sNativePropertyHooks, GetProtoObjectHandle, GetCCParticipant::Get(), nullptr, nullptr }; static_assert(1 == DOM_INSTANCE_RESERVED_SLOTS, "Must have the right minimal number of reserved slots."); static_assert(1 >= 1, "Must have enough reserved slots."); bool Wrap(JSContext* aCx, mozilla::dom::TextDecoder* aObject, JS::Handle aGivenProto, JS::MutableHandle aReflector) { static_assert(std::is_same_v); MOZ_ASSERT(ToSupportsIsCorrect(aObject)); MOZ_ASSERT_IF(aGivenProto, js::IsObjectInContextCompartment(aGivenProto, aCx)); JS::Rooted global(aCx, JS::CurrentGlobalOrNull(aCx)); JS::Handle canonicalProto = GetProtoObjectHandle(aCx); if (!canonicalProto) { return false; } JS::Rooted proto(aCx); if (aGivenProto) { proto = aGivenProto; // Unfortunately, while aGivenProto was in the compartment of aCx // coming in, we changed compartments to that of "parent" so may need // to wrap the proto here. if (js::GetContextCompartment(aCx) != JS::GetCompartment(proto)) { if (!JS_WrapObject(aCx, &proto)) { return false; } } } else { proto = canonicalProto; } BindingJSObjectCreator creator(aCx); creator.CreateObject(aCx, sClass.ToJSClass(), proto, aObject, aReflector); if (!aReflector) { return false; } creator.InitializationSucceeded(); return true; } void CreateInterfaceObjects(JSContext* aCx, JS::Handle aGlobal, ProtoAndIfaceCache& aProtoAndIfaceCache, DefineInterfaceProperty aDefineOnGlobal) { JS::Heap* protoCache = &aProtoAndIfaceCache.EntrySlotOrCreate(prototypes::id::TextDecoder); JS::Heap* interfaceCache = &aProtoAndIfaceCache.EntrySlotOrCreate(constructors::id::TextDecoder); JS::Handle parentProto(JS::GetRealmObjectPrototypeHandle(aCx)); if (!parentProto) { return; } JS::Handle constructorProto(JS::GetRealmFunctionPrototypeHandle(aCx)); if (!constructorProto) { return; } dom::CreateInterfaceObjects(aCx, aGlobal, parentProto, &sPrototypeClass, protoCache, constructorProto, &sInterfaceObjectInfo, 0, false, Span{}, interfaceCache, sNativeProperties.Upcast(), nullptr, "TextDecoder", aDefineOnGlobal != DefineInterfaceProperty::No, nullptr, false, nullptr); } static JS::Handle GetProtoObjectHandle(JSContext* aCx) { /* Get the interface prototype object for this class. This will create the object as needed. */ return GetPerInterfaceObjectHandle(aCx, prototypes::id::TextDecoder, &CreateInterfaceObjects, DefineInterfaceProperty::CheckExposure); } JS::Handle GetConstructorObjectHandle(JSContext* aCx) { /* Get the interface object for this class. This will create the object as needed. */ return GetPerInterfaceObjectHandle(aCx, constructors::id::TextDecoder, &CreateInterfaceObjects, DefineInterfaceProperty::CheckExposure); } } // namespace TextDecoder_Binding } // namespace mozilla::dom