/* THIS FILE IS AUTOGENERATED FROM MozSharedMap.webidl BY Codegen.py - DO NOT EDIT */ #include #include "AtomList.h" #include "EventBinding.h" #include "EventTargetBinding.h" #include "MainThreadUtils.h" #include "MozSharedMapBinding.h" #include "WrapperFactory.h" #include "XrayWrapper.h" #include "js/Array.h" #include "js/CallAndConstruct.h" #include "js/Exception.h" #include "js/ForOfIterator.h" #include "js/MapAndSet.h" #include "js/Object.h" #include "js/PropertyAndElement.h" #include "js/PropertyDescriptor.h" #include "js/Symbol.h" #include "js/experimental/JitInfo.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/IterableIterator.h" #include "mozilla/dom/NonRefcountedDOMObject.h" #include "mozilla/dom/PrimitiveConversions.h" #include "mozilla/dom/ScriptSettings.h" #include "mozilla/dom/SimpleGlobalObject.h" #include "mozilla/dom/ToJSValue.h" #include "mozilla/dom/XrayExpandoClass.h" #include "mozilla/dom/ipc/SharedMap.h" #include "mozilla/dom/ipc/SharedMapChangeEvent.h" #include "nsContentUtils.h" namespace mozilla::dom { namespace binding_detail {}; // Just to make sure it's known as a namespace using namespace mozilla::dom::binding_detail; MozSharedMapChangeEventInit::MozSharedMapChangeEventInit() : EventInit(FastDictionaryInitializer()) { // Safe to pass a null context if we pass a null value Init(); } bool MozSharedMapChangeEventInit::InitIds(JSContext* cx, MozSharedMapChangeEventInitAtoms* atomsCache) { MOZ_ASSERT(reinterpret_cast(atomsCache)->isVoid()); // Initialize these in reverse order so that any failure leaves the first one // uninitialized. if (!atomsCache->changedKeys_id.init(cx, "changedKeys")) { return false; } return true; } bool MozSharedMapChangeEventInit::Init(const char* sourceDescription, bool passedToJSImpl) { // We init the parent's members first if (!EventInit::Init(nullptr, JS::NullHandleValue)) { return false; } return true; } void MozSharedMapChangeEventInit::TraceDictionary(JSTracer* trc) { EventInit::TraceDictionary(trc); } MozSharedMapChangeEventInit& MozSharedMapChangeEventInit::operator=(const MozSharedMapChangeEventInit& aOther) { EventInit::operator=(aOther); mChangedKeys = aOther.mChangedKeys; return *this; } namespace MozSharedMapIterator_Binding { static bool Wrap(JSContext* aCx, mozilla::dom::IterableIterator* aObject, JS::MutableHandle aReflector); } // namespace MozSharedMapIterator_Binding namespace MozSharedMap_Binding { static_assert(IsRefcounted::value == IsRefcounted::value, "Can't inherit from an interface with a different ownership model."); MOZ_CAN_RUN_SCRIPT static bool has(JSContext* cx, JS::Handle obj, void* void_self, const JSJitMethodCallArgs& args) { AUTO_PROFILER_LABEL_DYNAMIC_FAST( "MozSharedMap", "has", DOM, cx, uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_METHOD) | uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS)); auto* self = static_cast(void_self); if (!args.requireAtLeast(cx, "MozSharedMap.has", 1)) { return false; } nsAutoString arg0; if (!ConvertJSValueToString(cx, args[0], eStringify, eStringify, arg0)) { return false; } bool result(MOZ_KnownLive(self)->Has(NonNullHelper(Constify(arg0)))); MOZ_ASSERT(!JS_IsExceptionPending(cx)); args.rval().setBoolean(result); return true; } static const JSJitInfo has_methodinfo = { { (JSJitGetterOp)has }, { prototypes::id::MozSharedMap }, { PrototypeTraits::Depth }, JSJitInfo::Method, JSJitInfo::AliasEverything, /* aliasSet. Not relevant for setters. */ JSVAL_TYPE_BOOLEAN, /* 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(JSContext* cx, JS::Handle obj, void* void_self, const JSJitMethodCallArgs& args) { AUTO_PROFILER_LABEL_DYNAMIC_FAST( "MozSharedMap", "get", DOM, cx, uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_METHOD) | uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS)); auto* self = static_cast(void_self); if (!args.requireAtLeast(cx, "MozSharedMap.get", 1)) { return false; } nsAutoString arg0; if (!ConvertJSValueToString(cx, args[0], eStringify, eStringify, arg0)) { return false; } FastErrorResult rv; JS::Rooted result(cx); // NOTE: This assert does NOT call the function. static_assert(std::is_void_vGet(cx, NonNullHelper(Constify(arg0)), &result, rv))>, "Should be returning void here"); MOZ_KnownLive(self)->Get(cx, NonNullHelper(Constify(arg0)), &result, rv); if (rv.MaybeSetPendingException(cx, "MozSharedMap.get")) [[unlikely]] { return false; } MOZ_ASSERT(!JS_IsExceptionPending(cx)); JS::ExposeValueToActiveJS(result); args.rval().set(result); if (!MaybeWrapValue(cx, args.rval())) { return false; } return true; } static const JSJitInfo get_methodinfo = { { (JSJitGetterOp)get }, { prototypes::id::MozSharedMap }, { PrototypeTraits::Depth }, JSJitInfo::Method, JSJitInfo::AliasEverything, /* aliasSet. Not relevant for setters. */ JSVAL_TYPE_UNKNOWN, /* 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 entries(JSContext* cx, JS::Handle obj, void* void_self, const JSJitMethodCallArgs& args) { AUTO_PROFILER_LABEL_DYNAMIC_FAST( "MozSharedMap", "entries", DOM, cx, uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_METHOD) | uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS)); auto* self = static_cast(void_self); typedef mozilla::dom::binding_detail::WrappableIterableIterator itrType; RefPtr result(new itrType(self, itrType::IteratorType::Entries)); 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())) { MOZ_ASSERT(JS_IsExceptionPending(cx)); return false; } return true; } static const JSJitInfo::ArgType entries_methodinfo_argTypes[] = { JSJitInfo::ArgTypeListEnd }; static const JSTypedMethodJitInfo entries_methodinfo = { { { (JSJitGetterOp)entries }, { prototypes::id::MozSharedMap }, { PrototypeTraits::Depth }, JSJitInfo::Method, JSJitInfo::AliasEverything, /* aliasSet. Not relevant for setters. */ JSVAL_TYPE_OBJECT, /* 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. */ true, /* isTypedMethod. Only relevant for methods. */ 0 /* Reserved slot index, if we're stored in a slot, else 0. */ }, entries_methodinfo_argTypes }; MOZ_CAN_RUN_SCRIPT static bool keys(JSContext* cx, JS::Handle obj, void* void_self, const JSJitMethodCallArgs& args) { AUTO_PROFILER_LABEL_DYNAMIC_FAST( "MozSharedMap", "keys", DOM, cx, uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_METHOD) | uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS)); auto* self = static_cast(void_self); typedef mozilla::dom::binding_detail::WrappableIterableIterator itrType; RefPtr result(new itrType(self, itrType::IteratorType::Keys)); 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())) { MOZ_ASSERT(JS_IsExceptionPending(cx)); return false; } return true; } static const JSJitInfo::ArgType keys_methodinfo_argTypes[] = { JSJitInfo::ArgTypeListEnd }; static const JSTypedMethodJitInfo keys_methodinfo = { { { (JSJitGetterOp)keys }, { prototypes::id::MozSharedMap }, { PrototypeTraits::Depth }, JSJitInfo::Method, JSJitInfo::AliasEverything, /* aliasSet. Not relevant for setters. */ JSVAL_TYPE_OBJECT, /* 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. */ true, /* isTypedMethod. Only relevant for methods. */ 0 /* Reserved slot index, if we're stored in a slot, else 0. */ }, keys_methodinfo_argTypes }; MOZ_CAN_RUN_SCRIPT static bool values(JSContext* cx, JS::Handle obj, void* void_self, const JSJitMethodCallArgs& args) { AUTO_PROFILER_LABEL_DYNAMIC_FAST( "MozSharedMap", "values", DOM, cx, uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_METHOD) | uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS)); auto* self = static_cast(void_self); typedef mozilla::dom::binding_detail::WrappableIterableIterator itrType; RefPtr result(new itrType(self, itrType::IteratorType::Values)); 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())) { MOZ_ASSERT(JS_IsExceptionPending(cx)); return false; } return true; } static const JSJitInfo::ArgType values_methodinfo_argTypes[] = { JSJitInfo::ArgTypeListEnd }; static const JSTypedMethodJitInfo values_methodinfo = { { { (JSJitGetterOp)values }, { prototypes::id::MozSharedMap }, { PrototypeTraits::Depth }, JSJitInfo::Method, JSJitInfo::AliasEverything, /* aliasSet. Not relevant for setters. */ JSVAL_TYPE_OBJECT, /* 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. */ true, /* isTypedMethod. Only relevant for methods. */ 0 /* Reserved slot index, if we're stored in a slot, else 0. */ }, values_methodinfo_argTypes }; MOZ_CAN_RUN_SCRIPT static bool forEach(JSContext* cx_, JS::Handle obj, void* void_self, const JSJitMethodCallArgs& args) { BindingCallContext cx(cx_, "MozSharedMap.forEach"); AUTO_PROFILER_LABEL_DYNAMIC_FAST( "MozSharedMap", "forEach", DOM, cx, uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_METHOD) | uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS)); auto* self = static_cast(void_self); JS::Rooted arg0(cx); if (args.get(0).isObject()) { arg0 = &args.get(0).toObject(); } else { cx.ThrowErrorMessage("Argument 1"); return false; } JS::Rooted arg1(cx); if (args.hasDefined(1)) { arg1 = args.get(1); } else { arg1 = JS::UndefinedValue(); } if (!JS::IsCallable(arg0)) { cx.ThrowErrorMessage("Argument 1"); return false; } JS::RootedValueArray<3> callArgs(cx); callArgs[2].setObject(*obj); JS::Rooted ignoredReturnVal(cx); auto GetKeyAtIndex = &mozilla::dom::ipc::SharedMap::GetKeyAtIndex; auto GetValueAtIndex = &mozilla::dom::ipc::SharedMap::GetValueAtIndex; for (size_t i = 0; i < self->GetIterableLength(); ++i) { if (!CallIterableGetter(cx, GetValueAtIndex, self, i, callArgs[0])) { return false; } if (!CallIterableGetter(cx, GetKeyAtIndex, self, i, callArgs[1])) { return false; } if (!JS::Call(cx, arg1, arg0, JS::HandleValueArray(callArgs), &ignoredReturnVal)) { return false; } } args.rval().setUndefined(); return true; } static const JSJitInfo forEach_methodinfo = { { (JSJitGetterOp)forEach }, { prototypes::id::MozSharedMap }, { PrototypeTraits::Depth }, JSJitInfo::Method, JSJitInfo::AliasEverything, /* aliasSet. Not relevant for setters. */ JSVAL_TYPE_UNDEFINED, /* 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. */ }; static void _finalize(JS::GCContext* gcx, JSObject* obj) { mozilla::dom::ipc::SharedMap* self = UnwrapPossiblyNotInitializedDOMObject(obj); if (self) { JS::SetNativeObjectReservedSlot(obj, DOM_OBJECT_SLOT, JS::UndefinedValue()); ClearWrapper(self, self, obj); if (size_t mallocBytes = BindingJSObjectMallocBytes(self)) { JS::RemoveAssociatedMemory(obj, mallocBytes, JS::MemoryUse::DOMBinding); } AddForDeferredFinalization(self); } } MOZ_GLOBINIT static const JSFunctionSpec sMethods_specs[] = { JS_FNSPEC("has", (GenericMethod), reinterpret_cast(&has_methodinfo), 1, JSPROP_ENUMERATE, nullptr), JS_FNSPEC("get", (GenericMethod), reinterpret_cast(&get_methodinfo), 1, JSPROP_ENUMERATE, nullptr), JS_FNSPEC("entries", (GenericMethod), reinterpret_cast(&entries_methodinfo), 0, JSPROP_ENUMERATE, nullptr), JS_FNSPEC("keys", (GenericMethod), reinterpret_cast(&keys_methodinfo), 0, JSPROP_ENUMERATE, nullptr), JS_FNSPEC("values", (GenericMethod), reinterpret_cast(&values_methodinfo), 0, JSPROP_ENUMERATE, nullptr), JS_FNSPEC("forEach", (GenericMethod), reinterpret_cast(&forEach_methodinfo), 1, 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(6 <= 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[6]; static PropertyInfo sNativeProperties_propertyInfos[6]; static const NativePropertiesN<1> sNativeProperties = { false, 0, false, 0, true, 0 /* sMethods */, false, 0, false, 0, false, 0, false, 0, 2, 6, sNativeProperties_sortedPropertyIndices, { { sMethods, &sNativeProperties_propertyInfos[0] } } }; static_assert(2 < 1ull << (CHAR_BIT * sizeof(sNativeProperties.iteratorAliasMethodIndex) - 1), "We have an iterator alias index that is oversized"); static_assert(6 < 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::MozSharedMap, constructors::id::MozSharedMap, &DefaultXrayExpandoObjectClass }; static const DOMInterfaceInfo sInterfaceObjectInfo = { { ThrowingConstructor, &sNativePropertyHooks }, EventTarget_Binding::GetConstructorObjectHandle, PrototypeTraits::Depth, prototypes::id::MozSharedMap, true, 0, "MozSharedMap", }; static const DOMIfaceAndProtoJSClass sPrototypeClass = { { "MozSharedMapPrototype", 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::MozSharedMap, PrototypeTraits::Depth, &sNativePropertyHooks, EventTarget_Binding::GetProtoObject }; bool ConstructorEnabled(JSContext* aCx, JS::Handle aObj) { return nsContentUtils::ThreadsafeIsSystemCaller(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 = { { "MozSharedMap", JSCLASS_IS_DOMJSCLASS | JSCLASS_FOREGROUND_FINALIZE | JSCLASS_HAS_RESERVED_SLOTS(1) | JSCLASS_PRESERVES_WRAPPER, &sClassOps, JS_NULL_CLASS_SPEC, &NativeTypeHelpers::sClassExtension, JS_NULL_OBJECT_OPS }, { prototypes::id::EventTarget, prototypes::id::MozSharedMap, 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, NativeTypeHelpers::GetWrapperCache }; 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::ipc::SharedMap* aObject, nsWrapperCache* aCache, JS::Handle aGivenProto, JS::MutableHandle aReflector) { static_assert(!std::is_base_of_v, "Shouldn't have wrappercached things that are not refcounted."); static_assert(std::is_same_v); MOZ_ASSERT(static_cast(aObject) == reinterpret_cast(aObject), "Multiple inheritance for mozilla::dom::EventTarget is broken."); MOZ_ASSERT(ToSupportsIsCorrect(aObject)); MOZ_ASSERT_IF(aGivenProto, js::IsObjectInContextCompartment(aGivenProto, aCx)); MOZ_ASSERT(!aCache->GetWrapper(), "You should probably not be using Wrap() directly; use " "GetOrCreateDOMReflector instead"); MOZ_ASSERT(ToSupportsIsOnPrimaryInheritanceChain(aObject, aCache), "nsISupports must be on our primary inheritance chain"); // If the wrapper cache contains a dead reflector then finalize that // now, ensuring that the finalizer for the old reflector always // runs before the new reflector is created and attached. This // avoids the awkward situation where there are multiple reflector // objects that contain pointers to the same native. if (JSObject* oldReflector = aCache->GetWrapperMaybeDead()) { _finalize(nullptr /* unused */, oldReflector); MOZ_ASSERT(!aCache->GetWrapperMaybeDead()); } JS::Rooted global(aCx, FindAssociatedGlobal(aCx, aObject->GetParentObject())); if (!global) { return false; } MOZ_ASSERT(JS_IsGlobalObject(global)); JS::AssertObjectIsNotGray(global); // That might have ended up wrapping us already, due to the wonders // of XBL. Check for that, and bail out as needed. aReflector.set(aCache->GetWrapper()); if (aReflector) { #ifdef DEBUG AssertReflectorHasGivenProto(aCx, aReflector, aGivenProto); #endif // DEBUG return true; } JSAutoRealm ar(aCx, global); 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; } aCache->SetWrapper(aReflector); creator.InitializationSucceeded(); MOZ_ASSERT(aCache->GetWrapperPreserveColor() && aCache->GetWrapperPreserveColor() == aReflector); // If proto != canonicalProto, we have to preserve our wrapper; // otherwise we won't be able to properly recreate it later, since // we won't know what proto to use. Note that we don't check // aGivenProto here, since it's entirely possible (and even // somewhat common) to have a non-null aGivenProto which is the // same as canonicalProto. if (proto != canonicalProto) { PreserveWrapper(aObject); } return true; } void CreateInterfaceObjects(JSContext* aCx, JS::Handle aGlobal, ProtoAndIfaceCache& aProtoAndIfaceCache, DefineInterfaceProperty aDefineOnGlobal) { JS::Heap* protoCache = &aProtoAndIfaceCache.EntrySlotOrCreate(prototypes::id::MozSharedMap); JS::Heap* interfaceCache = &aProtoAndIfaceCache.EntrySlotOrCreate(constructors::id::MozSharedMap); JS::Handle parentProto(EventTarget_Binding::GetProtoObjectHandle(aCx)); if (!parentProto) { return; } JS::Handle constructorProto(EventTarget_Binding::GetConstructorObjectHandle(aCx)); if (!constructorProto) { return; } dom::CreateInterfaceObjects(aCx, aGlobal, parentProto, &sPrototypeClass, protoCache, constructorProto, &sInterfaceObjectInfo, 0, false, Span{}, interfaceCache, sNativeProperties.Upcast(), nullptr, "MozSharedMap", ShouldExpose(aCx, aGlobal, aDefineOnGlobal), nullptr, false, nullptr); JS::AssertObjectIsNotGray(*protoCache); JS::Handle proto = JS::Handle::fromMarkedLocation(protoCache->unsafeAddress()); if (!proto) { *protoCache = nullptr; if (interfaceCache) { *interfaceCache = nullptr; } return; } // Set up aliases on the interface prototype object we just created. JS::Rooted aliasedVal(aCx); if (!JS_GetProperty(aCx, proto, "entries", &aliasedVal)) { *protoCache = nullptr; if (interfaceCache) { *interfaceCache = nullptr; } return; } JS::Rooted iteratorId(aCx, JS::GetWellKnownSymbolKey(aCx, JS::SymbolCode::iterator)); if (!JS_DefinePropertyById(aCx, proto, iteratorId, aliasedVal, 0)) { *protoCache = nullptr; if (interfaceCache) { *interfaceCache = nullptr; } return; } } 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::MozSharedMap, &CreateInterfaceObjects, DefineInterfaceProperty::CheckExposure); } JSObject* GetProtoObject(JSContext* aCx) { return GetProtoObjectHandle(aCx); } JS::Handle GetConstructorObjectHandle(JSContext* aCx) { /* Get the interface object for this class. This will create the object as needed. */ return GetPerInterfaceObjectHandle(aCx, constructors::id::MozSharedMap, &CreateInterfaceObjects, DefineInterfaceProperty::CheckExposure); } } // namespace MozSharedMap_Binding namespace MozSharedMapChangeEvent_Binding { static_assert(IsRefcounted::value == IsRefcounted::value, "Can't inherit from an interface with a different ownership model."); MOZ_CAN_RUN_SCRIPT static bool get_changedKeys(JSContext* cx, JS::Handle obj, void* void_self, JSJitGetterCallArgs args) { AUTO_PROFILER_LABEL_DYNAMIC_FAST( "MozSharedMapChangeEvent", "changedKeys", DOM, cx, uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_GETTER) | uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS)); auto* self = static_cast(void_self); // Have to either root across the getter call or reget after. bool isXray; JS::Rooted slotStorage(cx, GetCachedSlotStorageObject(cx, obj, &isXray)); if (!slotStorage) { return false; } const size_t slotIndex = isXray ? (DOM_EXPANDO_RESERVED_SLOTS + 0) : (DOM_INSTANCE_RESERVED_SLOTS + 0); MOZ_ASSERT(slotIndex < JSCLASS_RESERVED_SLOTS(JS::GetClass(slotStorage))); { // Scope for cachedVal JS::Value cachedVal = JS::GetNativeObjectReservedSlot(slotStorage, slotIndex); if (!cachedVal.isUndefined()) { args.rval().set(cachedVal); // The cached value is in the compartment of slotStorage, // so wrap into the caller compartment as needed. return MaybeWrapNonDOMObjectValue(cx, args.rval()); } } nsTArray result; // NOTE: This assert does NOT call the function. static_assert(std::is_void_vGetChangedKeys(result))>, "Should be returning void here"); MOZ_KnownLive(self)->GetChangedKeys(result); MOZ_ASSERT(!JS_IsExceptionPending(cx)); { JS::Rooted conversionScope(cx, isXray ? JS::CurrentGlobalOrNull(cx) : slotStorage); JSAutoRealm ar(cx, conversionScope); do { // block we break out of when done wrapping uint32_t length = result.Length(); JS::Rooted returnArray(cx, JS::NewArrayObject(cx, length)); if (!returnArray) { return false; } // Scope for 'tmp' { JS::Rooted tmp(cx); for (uint32_t sequenceIdx0 = 0; sequenceIdx0 < length; ++sequenceIdx0) { // Control block to let us common up the JS_DefineElement calls when there // are different ways to succeed at wrapping the object. do { if (!xpc::NonVoidStringToJsval(cx, result[sequenceIdx0], &tmp)) { return false; } break; } while (false); if (!JS_DefineElement(cx, returnArray, sequenceIdx0, tmp, JSPROP_ENUMERATE)) { return false; } } } args.rval().setObject(*returnArray); break; } while (false); } { // And now store things in the realm of our slotStorage. JSAutoRealm ar(cx, slotStorage); // Make a copy so that we don't do unnecessary wrapping on args.rval(). JS::Rooted storedVal(cx, args.rval()); if (!MaybeWrapNonDOMObjectValue(cx, &storedVal)) { return false; } JS::SetNativeObjectReservedSlot(slotStorage, slotIndex, storedVal); if (!isXray) { // In the Xray case we don't need to do this, because getting the // expando object already preserved our wrapper. PreserveWrapper(self); } } // And now make sure args.rval() is in the caller realm. return MaybeWrapNonDOMObjectValue(cx, args.rval()); } static const JSJitInfo changedKeys_getterinfo = { { get_changedKeys }, { prototypes::id::MozSharedMapChangeEvent }, { PrototypeTraits::Depth }, JSJitInfo::Getter, JSJitInfo::AliasNone, /* aliasSet. Not relevant for setters. */ JSVAL_TYPE_OBJECT, /* 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. */ true, /* isLazilyCachedInSlot. Only relevant for getters. */ false, /* isTypedMethod. Only relevant for methods. */ (DOM_INSTANCE_RESERVED_SLOTS + 0) /* Reserved slot index, if we're stored in a slot, else 0. */ }; static_assert((DOM_INSTANCE_RESERVED_SLOTS + 0) <= JSJitInfo::maxSlotIndex, "We won't fit"); static_assert((DOM_INSTANCE_RESERVED_SLOTS + 0) < 2, "There is no slot for us"); MOZ_CAN_RUN_SCRIPT static bool get_isTrusted(JSContext* cx, JS::Handle obj, void* void_self, JSJitGetterCallArgs args) { AUTO_PROFILER_LABEL_DYNAMIC_FAST( "MozSharedMapChangeEvent", "isTrusted", 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)->IsTrusted()); MOZ_ASSERT(!JS_IsExceptionPending(cx)); args.rval().setBoolean(result); return true; } static const JSJitInfo isTrusted_getterinfo = { { get_isTrusted }, { prototypes::id::MozSharedMapChangeEvent }, { PrototypeTraits::Depth }, JSJitInfo::Getter, JSJitInfo::AliasDOMSets, /* 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::ipc::SharedMapChangeEvent* self = UnwrapPossiblyNotInitializedDOMObject(obj); if (self) { JS::SetNativeObjectReservedSlot(obj, DOM_OBJECT_SLOT, JS::UndefinedValue()); ClearWrapper(self, self, obj); if (size_t mallocBytes = BindingJSObjectMallocBytes(self)) { JS::RemoveAssociatedMemory(obj, mallocBytes, JS::MemoryUse::DOMBinding); } AddForDeferredFinalization(self); } } MOZ_GLOBINIT static const JSPropertySpec sAttributes_specs[] = { JSPropertySpec::nativeAccessors("changedKeys", JSPROP_ENUMERATE, GenericGetter, &changedKeys_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(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 sUnforgeableAttributes_specs[] = { JSPropertySpec::nativeAccessors("isTrusted", JSPROP_ENUMERATE | JSPROP_PERMANENT, GenericGetter, &isTrusted_getterinfo, nullptr, nullptr), JS_PS_END }; static const Prefable sUnforgeableAttributes[] = { { nullptr, &sUnforgeableAttributes_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)"); static uint16_t sNativeProperties_sortedPropertyIndices[2]; static PropertyInfo sNativeProperties_propertyInfos[2]; static const NativePropertiesN<2> sNativeProperties = { false, 0, false, 0, false, 0, true, 0 /* sAttributes */, false, 0, true, 1 /* sUnforgeableAttributes */, false, 0, -1, 2, sNativeProperties_sortedPropertyIndices, { { sAttributes, &sNativeProperties_propertyInfos[0] }, { sUnforgeableAttributes, &sNativeProperties_propertyInfos[1] } } }; static_assert(2 < 1ull << (CHAR_BIT * sizeof(sNativeProperties.propertyInfoCount)), "We have a property info count that is oversized"); // This may allocate too many slots, because we only really need // slots for our non-interface-typed members that we cache. But // allocating slots only for those would make the slot index // computations much more complicated, so let's do this the simple // way for now. DEFINE_XRAY_EXPANDO_CLASS_WITH_OPS(static, sXrayExpandoObjectClass, 1, &xpc::XrayExpandoObjectClassOps); bool sNativePropertiesInited = false; const NativePropertyHooks sNativePropertyHooks = { nullptr, { sNativeProperties.Upcast(), nullptr, &sNativePropertiesInited }, prototypes::id::MozSharedMapChangeEvent, constructors::id::MozSharedMapChangeEvent, &sXrayExpandoObjectClass }; static const DOMInterfaceInfo sInterfaceObjectInfo = { { ThrowingConstructor, &sNativePropertyHooks }, Event_Binding::GetConstructorObjectHandle, PrototypeTraits::Depth, prototypes::id::MozSharedMapChangeEvent, true, 0, "MozSharedMapChangeEvent", }; static const DOMIfaceAndProtoJSClass sPrototypeClass = { { "MozSharedMapChangeEventPrototype", JSCLASS_IS_DOMIFACEANDPROTOJSCLASS | JSCLASS_HAS_RESERVED_SLOTS(DOM_INTERFACE_PROTO_SLOTS_BASE + 1 /* slot for the JSObject holding the unforgeable properties */), JS_NULL_CLASS_OPS, JS_NULL_CLASS_SPEC, JS_NULL_CLASS_EXT, JS_NULL_OBJECT_OPS }, eInterfacePrototype, prototypes::id::MozSharedMapChangeEvent, PrototypeTraits::Depth, &sNativePropertyHooks, Event_Binding::GetProtoObject }; bool ConstructorEnabled(JSContext* aCx, JS::Handle aObj) { return nsContentUtils::ThreadsafeIsSystemCaller(aCx); } 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 = { { "MozSharedMapChangeEvent", JSCLASS_IS_DOMJSCLASS | JSCLASS_FOREGROUND_FINALIZE | JSCLASS_HAS_RESERVED_SLOTS(2) | JSCLASS_SKIP_NURSERY_FINALIZE | JSCLASS_PRESERVES_WRAPPER, &sClassOps, JS_NULL_CLASS_SPEC, &NativeTypeHelpers::sClassExtension, JS_NULL_OBJECT_OPS }, { prototypes::id::Event, prototypes::id::MozSharedMapChangeEvent, 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, NativeTypeHelpers::GetWrapperCache }; static_assert(1 == DOM_INSTANCE_RESERVED_SLOTS, "Must have the right minimal number of reserved slots."); static_assert(2 >= 2, "Must have enough reserved slots."); bool Wrap(JSContext* aCx, mozilla::dom::ipc::SharedMapChangeEvent* aObject, nsWrapperCache* aCache, JS::Handle aGivenProto, JS::MutableHandle aReflector) { static_assert(!std::is_base_of_v, "Shouldn't have wrappercached things that are not refcounted."); static_assert(std::is_same_v); MOZ_ASSERT(static_cast(aObject) == reinterpret_cast(aObject), "Multiple inheritance for mozilla::dom::Event is broken."); MOZ_ASSERT(ToSupportsIsCorrect(aObject)); MOZ_ASSERT_IF(aGivenProto, js::IsObjectInContextCompartment(aGivenProto, aCx)); MOZ_ASSERT(!aCache->GetWrapper(), "You should probably not be using Wrap() directly; use " "GetOrCreateDOMReflector instead"); MOZ_ASSERT(ToSupportsIsOnPrimaryInheritanceChain(aObject, aCache), "nsISupports must be on our primary inheritance chain"); // If the wrapper cache contains a dead reflector then finalize that // now, ensuring that the finalizer for the old reflector always // runs before the new reflector is created and attached. This // avoids the awkward situation where there are multiple reflector // objects that contain pointers to the same native. if (JSObject* oldReflector = aCache->GetWrapperMaybeDead()) { _finalize(nullptr /* unused */, oldReflector); MOZ_ASSERT(!aCache->GetWrapperMaybeDead()); } JS::Rooted global(aCx, FindAssociatedGlobal(aCx, aObject->GetParentObject())); if (!global) { return false; } MOZ_ASSERT(JS_IsGlobalObject(global)); JS::AssertObjectIsNotGray(global); // That might have ended up wrapping us already, due to the wonders // of XBL. Check for that, and bail out as needed. aReflector.set(aCache->GetWrapper()); if (aReflector) { #ifdef DEBUG AssertReflectorHasGivenProto(aCx, aReflector, aGivenProto); #endif // DEBUG return true; } JSAutoRealm ar(aCx, global); 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; } aCache->SetWrapper(aReflector); // Important: do unforgeable property setup after we have handed // over ownership of the C++ object to obj as needed, so that if // we fail and it ends up GCed it won't have problems in the // finalizer trying to drop its ownership of the C++ object. JS::Rooted unforgeableHolder(aCx, &JS::GetNativeObjectReservedSlot(canonicalProto, DOM_INTERFACE_PROTO_SLOTS_BASE).toObject()); if (!JS_InitializePropertiesFromCompatibleNativeObject(aCx, aReflector, unforgeableHolder)) { aCache->ReleaseWrapper(aObject); aCache->ClearWrapperOnWrapFailure(); return false; } creator.InitializationSucceeded(); MOZ_ASSERT(aCache->GetWrapperPreserveColor() && aCache->GetWrapperPreserveColor() == aReflector); // If proto != canonicalProto, we have to preserve our wrapper; // otherwise we won't be able to properly recreate it later, since // we won't know what proto to use. Note that we don't check // aGivenProto here, since it's entirely possible (and even // somewhat common) to have a non-null aGivenProto which is the // same as canonicalProto. if (proto != canonicalProto) { PreserveWrapper(aObject); } return true; } void CreateInterfaceObjects(JSContext* aCx, JS::Handle aGlobal, ProtoAndIfaceCache& aProtoAndIfaceCache, DefineInterfaceProperty aDefineOnGlobal) { JS::Heap* protoCache = &aProtoAndIfaceCache.EntrySlotOrCreate(prototypes::id::MozSharedMapChangeEvent); JS::Heap* interfaceCache = &aProtoAndIfaceCache.EntrySlotOrCreate(constructors::id::MozSharedMapChangeEvent); JS::Handle parentProto(Event_Binding::GetProtoObjectHandle(aCx)); if (!parentProto) { return; } JS::Handle constructorProto(Event_Binding::GetConstructorObjectHandle(aCx)); if (!constructorProto) { return; } dom::CreateInterfaceObjects(aCx, aGlobal, parentProto, &sPrototypeClass, protoCache, constructorProto, &sInterfaceObjectInfo, 0, false, Span{}, interfaceCache, sNativeProperties.Upcast(), nullptr, "MozSharedMapChangeEvent", ShouldExpose(aCx, aGlobal, aDefineOnGlobal), nullptr, false, nullptr); JS::AssertObjectIsNotGray(*protoCache); JS::Handle proto = JS::Handle::fromMarkedLocation(protoCache->unsafeAddress()); if (!proto) { *protoCache = nullptr; if (interfaceCache) { *interfaceCache = nullptr; } return; } JS::Rooted unforgeableHolder( aCx, JS_NewObjectWithoutMetadata(aCx, sClass.ToJSClass(), proto)); if (!unforgeableHolder) { *protoCache = nullptr; if (interfaceCache) { *interfaceCache = nullptr; } return; } if (!DefineLegacyUnforgeableAttributes(aCx, unforgeableHolder, sUnforgeableAttributes)) { *protoCache = nullptr; if (interfaceCache) { *interfaceCache = nullptr; } return; } if (*protoCache) { JS::SetNativeObjectReservedSlot(*protoCache, DOM_INTERFACE_PROTO_SLOTS_BASE, JS::ObjectValue(*unforgeableHolder)); } } 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::MozSharedMapChangeEvent, &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::MozSharedMapChangeEvent, &CreateInterfaceObjects, DefineInterfaceProperty::CheckExposure); } } // namespace MozSharedMapChangeEvent_Binding namespace MozSharedMapIterator_Binding { MOZ_CAN_RUN_SCRIPT static bool next(JSContext* cx, JS::Handle obj, void* void_self, const JSJitMethodCallArgs& args) { AUTO_PROFILER_LABEL_DYNAMIC_FAST( "MozSharedMapIterator", "next", DOM, cx, uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_METHOD) | uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS)); auto* self = static_cast*>(void_self); FastErrorResult rv; JS::Rooted result(cx); // NOTE: This assert does NOT call the function. static_assert(std::is_void_vNext(cx, &result, rv))>, "Should be returning void here"); MOZ_KnownLive(self)->Next(cx, &result, rv); if (rv.MaybeSetPendingException(cx, "MozSharedMapIterator.next")) [[unlikely]] { return false; } MOZ_ASSERT(!JS_IsExceptionPending(cx)); JS::ExposeObjectToActiveJS(result); args.rval().setObject(*result); if (!MaybeWrapObjectValue(cx, args.rval())) { return false; } return true; } static const JSJitInfo next_methodinfo = { { (JSJitGetterOp)next }, { prototypes::id::MozSharedMapIterator }, { PrototypeTraits::Depth }, JSJitInfo::Method, JSJitInfo::AliasEverything, /* aliasSet. Not relevant for setters. */ JSVAL_TYPE_OBJECT, /* 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. */ }; static void _finalize(JS::GCContext* gcx, JSObject* obj) { mozilla::dom::IterableIterator* 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("next", (GenericMethod), reinterpret_cast(&next_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)"); static uint16_t sNativeProperties_sortedPropertyIndices[1]; static PropertyInfo sNativeProperties_propertyInfos[1]; static const NativePropertiesN<1> sNativeProperties = { false, 0, false, 0, true, 0 /* sMethods */, false, 0, false, 0, false, 0, false, 0, -1, 1, sNativeProperties_sortedPropertyIndices, { { sMethods, &sNativeProperties_propertyInfos[0] } } }; static_assert(1 < 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::MozSharedMapIterator, constructors::id::_ID_Count, &DefaultXrayExpandoObjectClass }; static const DOMIfaceAndProtoJSClass sPrototypeClass = { { "MozSharedMap IteratorPrototype", 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::MozSharedMapIterator, PrototypeTraits::Depth, &sNativePropertyHooks, JS::GetRealmIteratorPrototype }; 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 = { { "MozSharedMap Iterator", 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::MozSharedMapIterator, 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."); static bool Wrap(JSContext* aCx, mozilla::dom::IterableIterator* aObject, JS::MutableHandle aReflector) { static_assert(std::is_same_v*>); MOZ_ASSERT(ToSupportsIsCorrect(aObject)); JS::Rooted global(aCx, JS::CurrentGlobalOrNull(aCx)); JS::Handle proto = GetProtoObjectHandle(aCx); if (!proto) { return false; } BindingJSObjectCreator> creator(aCx); creator.CreateObject(aCx, sClass.ToJSClass(), proto, aObject, aReflector); if (!aReflector) { return false; } creator.InitializationSucceeded(); return true; } static void CreateInterfaceObjects(JSContext* aCx, JS::Handle aGlobal, ProtoAndIfaceCache& aProtoAndIfaceCache, DefineInterfaceProperty aDefineOnGlobal) { JS::Heap* protoCache = &aProtoAndIfaceCache.EntrySlotOrCreate(prototypes::id::MozSharedMapIterator); JS::Heap* interfaceCache = nullptr; JS::Rooted parentProto(aCx, JS::GetRealmIteratorPrototype(aCx)); if (!parentProto) { return; } dom::CreateInterfaceObjects(aCx, aGlobal, parentProto, &sPrototypeClass, protoCache, nullptr, nullptr, 0, false, Span{}, interfaceCache, sNativeProperties.Upcast(), nullptr, "MozSharedMap Iterator", 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::MozSharedMapIterator, &CreateInterfaceObjects, DefineInterfaceProperty::CheckExposure); } } // namespace MozSharedMapIterator_Binding namespace MozWritableSharedMap_Binding { static_assert(IsRefcounted::value == IsRefcounted::value, "Can't inherit from an interface with a different ownership model."); MOZ_CAN_RUN_SCRIPT static bool set(JSContext* cx, JS::Handle obj, void* void_self, const JSJitMethodCallArgs& args) { AUTO_PROFILER_LABEL_DYNAMIC_FAST( "MozWritableSharedMap", "set", DOM, cx, uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_METHOD) | uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS)); auto* self = static_cast(void_self); if (!args.requireAtLeast(cx, "MozWritableSharedMap.set", 2)) { return false; } nsAutoString arg0; if (!ConvertJSValueToString(cx, args[0], eStringify, eStringify, arg0)) { return false; } JS::Rooted arg1(cx); arg1 = args[1]; FastErrorResult rv; // NOTE: This assert does NOT call the function. static_assert(std::is_void_vSet(cx, NonNullHelper(Constify(arg0)), arg1, rv))>, "Should be returning void here"); MOZ_KnownLive(self)->Set(cx, NonNullHelper(Constify(arg0)), arg1, rv); if (rv.MaybeSetPendingException(cx, "MozWritableSharedMap.set")) [[unlikely]] { return false; } MOZ_ASSERT(!JS_IsExceptionPending(cx)); args.rval().setUndefined(); return true; } static const JSJitInfo set_methodinfo = { { (JSJitGetterOp)set }, { prototypes::id::MozWritableSharedMap }, { PrototypeTraits::Depth }, JSJitInfo::Method, JSJitInfo::AliasEverything, /* aliasSet. Not relevant for setters. */ JSVAL_TYPE_UNDEFINED, /* 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 _delete_(JSContext* cx, JS::Handle obj, void* void_self, const JSJitMethodCallArgs& args) { AUTO_PROFILER_LABEL_DYNAMIC_FAST( "MozWritableSharedMap", "delete", DOM, cx, uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_METHOD) | uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS)); auto* self = static_cast(void_self); if (!args.requireAtLeast(cx, "MozWritableSharedMap.delete", 1)) { return false; } nsAutoString arg0; if (!ConvertJSValueToString(cx, args[0], eStringify, eStringify, arg0)) { return false; } // NOTE: This assert does NOT call the function. static_assert(std::is_void_vDelete(NonNullHelper(Constify(arg0))))>, "Should be returning void here"); MOZ_KnownLive(self)->Delete(NonNullHelper(Constify(arg0))); MOZ_ASSERT(!JS_IsExceptionPending(cx)); args.rval().setUndefined(); return true; } static const JSJitInfo delete_methodinfo = { { (JSJitGetterOp)_delete_ }, { prototypes::id::MozWritableSharedMap }, { PrototypeTraits::Depth }, JSJitInfo::Method, JSJitInfo::AliasEverything, /* aliasSet. Not relevant for setters. */ JSVAL_TYPE_UNDEFINED, /* 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 flush(JSContext* cx, JS::Handle obj, void* void_self, const JSJitMethodCallArgs& args) { AUTO_PROFILER_LABEL_DYNAMIC_FAST( "MozWritableSharedMap", "flush", DOM, cx, uint32_t(js::ProfilingStackFrame::Flags::STRING_TEMPLATE_METHOD) | uint32_t(js::ProfilingStackFrame::Flags::RELEVANT_FOR_JS)); auto* self = static_cast(void_self); // NOTE: This assert does NOT call the function. static_assert(std::is_void_vFlush())>, "Should be returning void here"); MOZ_KnownLive(self)->Flush(); MOZ_ASSERT(!JS_IsExceptionPending(cx)); args.rval().setUndefined(); return true; } static const JSJitInfo flush_methodinfo = { { (JSJitGetterOp)flush }, { prototypes::id::MozWritableSharedMap }, { PrototypeTraits::Depth }, JSJitInfo::Method, JSJitInfo::AliasEverything, /* aliasSet. Not relevant for setters. */ JSVAL_TYPE_UNDEFINED, /* returnType. Not relevant for setters. */ true, /* 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. */ }; static void _finalize(JS::GCContext* gcx, JSObject* obj) { mozilla::dom::ipc::WritableSharedMap* self = UnwrapPossiblyNotInitializedDOMObject(obj); if (self) { JS::SetNativeObjectReservedSlot(obj, DOM_OBJECT_SLOT, JS::UndefinedValue()); ClearWrapper(self, self, obj); if (size_t mallocBytes = BindingJSObjectMallocBytes(self)) { JS::RemoveAssociatedMemory(obj, mallocBytes, JS::MemoryUse::DOMBinding); } AddForDeferredFinalization(self); } } MOZ_GLOBINIT static const JSFunctionSpec sMethods_specs[] = { JS_FNSPEC("set", (GenericMethod), reinterpret_cast(&set_methodinfo), 2, JSPROP_ENUMERATE, nullptr), JS_FNSPEC("delete", (GenericMethod), reinterpret_cast(&delete_methodinfo), 1, JSPROP_ENUMERATE, nullptr), JS_FNSPEC("flush", (GenericMethod), reinterpret_cast(&flush_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(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[3]; static PropertyInfo sNativeProperties_propertyInfos[3]; static const NativePropertiesN<1> sNativeProperties = { false, 0, false, 0, true, 0 /* sMethods */, false, 0, false, 0, false, 0, false, 0, -1, 3, sNativeProperties_sortedPropertyIndices, { { sMethods, &sNativeProperties_propertyInfos[0] } } }; static_assert(3 < 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::MozWritableSharedMap, constructors::id::MozWritableSharedMap, &DefaultXrayExpandoObjectClass }; static const DOMInterfaceInfo sInterfaceObjectInfo = { { ThrowingConstructor, &sNativePropertyHooks }, MozSharedMap_Binding::GetConstructorObjectHandle, PrototypeTraits::Depth, prototypes::id::MozWritableSharedMap, true, 0, "MozWritableSharedMap", }; static const DOMIfaceAndProtoJSClass sPrototypeClass = { { "MozWritableSharedMapPrototype", 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::MozWritableSharedMap, PrototypeTraits::Depth, &sNativePropertyHooks, MozSharedMap_Binding::GetProtoObject }; bool ConstructorEnabled(JSContext* aCx, JS::Handle aObj) { return nsContentUtils::ThreadsafeIsSystemCaller(aCx); } 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 = { { "MozWritableSharedMap", JSCLASS_IS_DOMJSCLASS | JSCLASS_FOREGROUND_FINALIZE | JSCLASS_HAS_RESERVED_SLOTS(1) | JSCLASS_PRESERVES_WRAPPER, &sClassOps, JS_NULL_CLASS_SPEC, &NativeTypeHelpers::sClassExtension, JS_NULL_OBJECT_OPS }, { prototypes::id::EventTarget, prototypes::id::MozSharedMap, prototypes::id::MozWritableSharedMap, 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, NativeTypeHelpers::GetWrapperCache }; 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::ipc::WritableSharedMap* aObject, nsWrapperCache* aCache, JS::Handle aGivenProto, JS::MutableHandle aReflector) { static_assert(!std::is_base_of_v, "Shouldn't have wrappercached things that are not refcounted."); static_assert(std::is_same_v); MOZ_ASSERT(static_cast(aObject) == reinterpret_cast(aObject), "Multiple inheritance for mozilla::dom::ipc::SharedMap is broken."); MOZ_ASSERT(static_cast(aObject) == reinterpret_cast(aObject), "Multiple inheritance for mozilla::dom::EventTarget is broken."); MOZ_ASSERT(ToSupportsIsCorrect(aObject)); MOZ_ASSERT_IF(aGivenProto, js::IsObjectInContextCompartment(aGivenProto, aCx)); MOZ_ASSERT(!aCache->GetWrapper(), "You should probably not be using Wrap() directly; use " "GetOrCreateDOMReflector instead"); MOZ_ASSERT(ToSupportsIsOnPrimaryInheritanceChain(aObject, aCache), "nsISupports must be on our primary inheritance chain"); // If the wrapper cache contains a dead reflector then finalize that // now, ensuring that the finalizer for the old reflector always // runs before the new reflector is created and attached. This // avoids the awkward situation where there are multiple reflector // objects that contain pointers to the same native. if (JSObject* oldReflector = aCache->GetWrapperMaybeDead()) { _finalize(nullptr /* unused */, oldReflector); MOZ_ASSERT(!aCache->GetWrapperMaybeDead()); } JS::Rooted global(aCx, FindAssociatedGlobal(aCx, aObject->GetParentObject())); if (!global) { return false; } MOZ_ASSERT(JS_IsGlobalObject(global)); JS::AssertObjectIsNotGray(global); // That might have ended up wrapping us already, due to the wonders // of XBL. Check for that, and bail out as needed. aReflector.set(aCache->GetWrapper()); if (aReflector) { #ifdef DEBUG AssertReflectorHasGivenProto(aCx, aReflector, aGivenProto); #endif // DEBUG return true; } JSAutoRealm ar(aCx, global); 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; } aCache->SetWrapper(aReflector); creator.InitializationSucceeded(); MOZ_ASSERT(aCache->GetWrapperPreserveColor() && aCache->GetWrapperPreserveColor() == aReflector); // If proto != canonicalProto, we have to preserve our wrapper; // otherwise we won't be able to properly recreate it later, since // we won't know what proto to use. Note that we don't check // aGivenProto here, since it's entirely possible (and even // somewhat common) to have a non-null aGivenProto which is the // same as canonicalProto. if (proto != canonicalProto) { PreserveWrapper(aObject); } return true; } void CreateInterfaceObjects(JSContext* aCx, JS::Handle aGlobal, ProtoAndIfaceCache& aProtoAndIfaceCache, DefineInterfaceProperty aDefineOnGlobal) { JS::Heap* protoCache = &aProtoAndIfaceCache.EntrySlotOrCreate(prototypes::id::MozWritableSharedMap); JS::Heap* interfaceCache = &aProtoAndIfaceCache.EntrySlotOrCreate(constructors::id::MozWritableSharedMap); JS::Handle parentProto(MozSharedMap_Binding::GetProtoObjectHandle(aCx)); if (!parentProto) { return; } JS::Handle constructorProto(MozSharedMap_Binding::GetConstructorObjectHandle(aCx)); if (!constructorProto) { return; } dom::CreateInterfaceObjects(aCx, aGlobal, parentProto, &sPrototypeClass, protoCache, constructorProto, &sInterfaceObjectInfo, 0, false, Span{}, interfaceCache, sNativeProperties.Upcast(), nullptr, "MozWritableSharedMap", ShouldExpose(aCx, aGlobal, aDefineOnGlobal), 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::MozWritableSharedMap, &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::MozWritableSharedMap, &CreateInterfaceObjects, DefineInterfaceProperty::CheckExposure); } } // namespace MozWritableSharedMap_Binding } // namespace mozilla::dom