mirror of
https://gitee.com/openharmony/arkcompiler_ets_runtime
synced 2024-10-07 08:03:29 +00:00
86ed7e81ef
1. Use fixed length(WeakVector::DEFAULT_CAPACITY) supers array as default supers of hclass. 2. Eliminate level check if level is less than DEFAULT_CAPACITY. Issue: https://gitee.com/openharmony/arkcompiler_ets_runtime/issues/I70J0X Signed-off-by: dingding <dingding5@huawei.com> Change-Id: I81227d1e766f28621050e0c0c4c7893fff347af4
115 lines
3.8 KiB
C++
115 lines
3.8 KiB
C++
/*
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* Copyright (c) 2021 Huawei Device Co., Ltd.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ECMASCRIPT_WEAK_VECTOR_H
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#define ECMASCRIPT_WEAK_VECTOR_H
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#include "ecmascript/js_handle.h"
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#include "ecmascript/js_thread.h"
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#include "ecmascript/tagged_array-inl.h"
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namespace panda::ecmascript {
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class WeakVector : public TaggedArray {
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public:
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enum ElementType {
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NORMAL = 0,
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WEAK,
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};
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static WeakVector *Cast(TaggedObject *object)
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{
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return static_cast<WeakVector *>(object);
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}
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static constexpr uint32_t DEFAULT_CAPACITY = 4;
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static constexpr uint32_t DEFAULT_GROW_SIZE = 4;
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static JSHandle<WeakVector> Create(const JSThread *thread, uint32_t capacity = DEFAULT_CAPACITY);
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static JSHandle<WeakVector> Grow(const JSThread *thread, const JSHandle<WeakVector> &old, uint32_t newCapacity);
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static JSHandle<WeakVector> Append(const JSThread *thread, const JSHandle<WeakVector> &vec,
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const JSHandle<JSTaggedValue> &value, ElementType type = ElementType::NORMAL);
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static JSHandle<WeakVector> FillOrAppend(const JSThread *thread, const JSHandle<WeakVector> &vec,
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const JSHandle<JSTaggedValue> &value,
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ElementType type = ElementType::NORMAL);
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static JSHandle<WeakVector> Copy(const JSThread *thread, const JSHandle<WeakVector> &vec, bool needExtend = false);
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uint32_t PushBack(const JSThread *thread, JSTaggedValue value);
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// just set index value to Hole
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bool Delete(const JSThread *thread, uint32_t index);
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inline uint32_t GetEnd() const
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{
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return TaggedArray::GetExtraLength();
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}
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inline bool Full() const
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{
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return GetEnd() == GetCapacity();
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}
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inline bool Empty() const
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{
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return GetEnd() == 0;
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}
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inline uint32_t GetCapacity() const
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{
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return TaggedArray::GetLength();
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}
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inline JSTaggedValue Get(uint32_t index) const
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{
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ASSERT(index < GetCapacity());
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return TaggedArray::Get(VectorToArrayIndex(index));
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}
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inline void Set(const JSThread *thread, uint32_t index, JSTaggedValue value)
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{
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ASSERT(index < GetCapacity());
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TaggedArray::Set(thread, VectorToArrayIndex(index), value);
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}
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template <class Callback>
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void Iterate(const Callback &cb)
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{
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uint32_t end = GetEnd();
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for (uint32_t index = 0; index < end; ++index) {
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cb(Get(index));
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}
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}
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private:
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static const uint32_t MIN_CAPACITY = 2;
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static const uint32_t MAX_VECTOR_INDEX = TaggedArray::MAX_ARRAY_INDEX;
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inline static constexpr uint32_t VectorToArrayIndex(uint32_t index)
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{
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return index;
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}
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inline void SetEnd([[maybe_unused]] const JSThread *thread, uint32_t end)
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{
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ASSERT(end <= GetCapacity());
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SetExtraLength(end);
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}
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static JSTaggedValue GetStoreVal(const JSHandle<JSTaggedValue> &value, ElementType type);
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static uint32_t CheckHole(const JSHandle<WeakVector> &vec);
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static JSHandle<WeakVector> AppendToFullVec(const JSThread *thread, const JSHandle<WeakVector> &vec,
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const JSHandle<JSTaggedValue> &value, ElementType type);
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};
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} // namespace panda::ecmascript
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#endif // ECMASCRIPT_WEAK_VECTOR_H
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