/* * Copyright (c) 2022 Huawei Device Co., Ltd. * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #ifndef ECMASCRIPT_JS_API_QUEUE_H #define ECMASCRIPT_JS_API_QUEUE_H #include "js_object.h" #include "js_tagged_value-inl.h" namespace panda::ecmascript { class JSAPIQueue : public JSObject { public: static constexpr int DEFAULT_CAPACITY_LENGTH = 8; static JSAPIQueue *Cast(TaggedObject *object) { ASSERT(JSTaggedValue(object).IsJSAPIQueue()); return static_cast(object); } static void Add(JSThread *thread, const JSHandle &queue, const JSHandle &value); static JSTaggedValue GetFirst(JSThread *thread, const JSHandle &queue); static JSTaggedValue Pop(JSThread *thread, const JSHandle &queue); static void ForEach(JSThread *thread, const JSHandle &queue, const JSHandle &value); JSTaggedValue Get(JSThread *thread, const uint32_t index); JSTaggedValue Set(JSThread *thread, const uint32_t index, JSTaggedValue value); bool Has(JSTaggedValue value) const; static JSHandle OwnKeys(JSThread *thread, const JSHandle &obj); static bool GetOwnProperty(JSThread *thread, const JSHandle &obj, const JSHandle &key); static OperationResult GetProperty(JSThread *thread, const JSHandle &obj, const JSHandle &key); inline uint32_t GetSize() const { return GetLength().GetArrayLength(); } inline uint32_t GetCurrentFront() const { return GetFront(); } inline uint32_t GetCurrentTail() const { return GetTail(); } static constexpr size_t LENGTH_OFFSET = JSObject::SIZE; ACCESSORS(Length, LENGTH_OFFSET, FRONT_OFFSET); ACCESSORS_PRIMITIVE_FIELD(Front, uint32_t, FRONT_OFFSET, TAIL_OFFSET) ACCESSORS_PRIMITIVE_FIELD(Tail, uint32_t, TAIL_OFFSET, LAST_OFFSET) DEFINE_ALIGN_SIZE(LAST_OFFSET); DECL_VISIT_OBJECT_FOR_JS_OBJECT(JSObject, LENGTH_OFFSET, FRONT_OFFSET) DECL_DUMP() static uint32_t GetArrayLength(JSThread *thread, const JSHandle &queue); uint32_t GetNextPosition(uint32_t currentPosition); private: inline static uint32_t ComputeCapacity(uint32_t oldCapacity) { uint32_t newCapacity = oldCapacity + (oldCapacity >> 1U); return newCapacity > DEFAULT_CAPACITY_LENGTH ? newCapacity : DEFAULT_CAPACITY_LENGTH; } static JSHandle GrowCapacity(const JSThread *thread, const JSHandle &obj, uint32_t capacity); }; } // namespace panda::ecmascript #endif // ECMASCRIPT_JS_API_QUEUE_H