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https://gitee.com/openharmony/arkcompiler_ets_runtime
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3b107f900a
Issue: #I7JI0Z Change-Id: I24f762d505cf467e86d5a12f3fc78c9ecd4513f1 Signed-off-by: yingguofeng@huawei.com <yingguofeng@huawei.com>
99 lines
4.0 KiB
C++
99 lines
4.0 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_LAYOUT_INFO_H
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#define ECMASCRIPT_LAYOUT_INFO_H
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#include "ecmascript/js_object.h"
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#include "ecmascript/property_attributes.h"
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#include "ecmascript/tagged_array.h"
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namespace panda::ecmascript {
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struct Properties {
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JSTaggedValue key_;
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JSTaggedValue attr_;
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};
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class LayoutInfo : private TaggedArray {
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public:
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static constexpr int MIN_PROPERTIES_LENGTH = JSObject::MIN_PROPERTIES_LENGTH;
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static constexpr int MAX_PROPERTIES_LENGTH = PropertyAttributes::MAX_CAPACITY_OF_PROPERTIES;
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static constexpr uint32_t ELEMENTS_INDEX_LOG2 = 1;
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static constexpr uint32_t ATTR_INDEX_OFFSET = 1;
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inline static LayoutInfo *Cast(TaggedObject *obj)
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{
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ASSERT(JSTaggedValue(obj).IsTaggedArray());
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return reinterpret_cast<LayoutInfo *>(obj);
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}
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void Initialize(const JSThread *thread, int num = 0);
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int GetPropertiesCapacity() const;
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int NumberOfElements() const;
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void SetNumberOfElements(const JSThread *thread, int properties);
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uint32_t GetKeyIndex(int index) const;
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uint32_t GetAttrIndex(int index) const;
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void SetPropertyInit(const JSThread *thread, int index, const JSTaggedValue &key, const PropertyAttributes &attr);
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void SetKey(const JSThread *thread, int index, const JSTaggedValue &key);
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void SetNormalAttr(const JSThread *thread, int index, const PropertyAttributes &attr);
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JSTaggedValue GetKey(int index) const;
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PropertyAttributes GetAttr(int index) const;
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JSTaggedValue GetSortedKey(int index) const;
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uint32_t GetSortedIndex(int index) const;
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void SetSortedIndex(const JSThread *thread, int index, int sortedIndex);
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void AddKey(const JSThread *thread, int index, const JSTaggedValue &key, const PropertyAttributes &attr);
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void SetIsNotHole(const JSThread *thread, int index);
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inline uint32_t GetLength() const
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{
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return TaggedArray::GetLength();
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}
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inline Properties *GetProperties() const
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{
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return reinterpret_cast<Properties *>(reinterpret_cast<uintptr_t>(this) + TaggedArray::DATA_OFFSET);
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}
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static inline uint32_t ComputeArrayLength(uint32_t properties_number)
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{
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return (properties_number << ELEMENTS_INDEX_LOG2);
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}
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static inline uint32_t ComputeGrowCapacity(uint32_t old_capacity)
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{
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uint32_t new_capacity = old_capacity + MIN_PROPERTIES_LENGTH;
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return new_capacity > MAX_PROPERTIES_LENGTH ? MAX_PROPERTIES_LENGTH : new_capacity;
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}
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int FindElementWithCache(const JSThread *thread, JSHClass *cls, JSTaggedValue key, int propertiesNumber);
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int BinarySearch(JSTaggedValue key, int propertiesNumber);
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void GetAllKeys(const JSThread *thread, int end, int offset, TaggedArray *keyArray,
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const JSHandle<JSObject> object);
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void GetAllKeys(int end, std::vector<JSTaggedValue> &keyVector, const JSHandle<JSObject> object);
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void GetAllKeysByFilter(const JSThread *thread, uint32_t numberOfProps, uint32_t &keyArrayEffectivelength,
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TaggedArray *keyArray, const JSHandle<JSObject> object, uint32_t filter);
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void GetAllEnumKeys(const JSThread *thread, int end, int offset, TaggedArray *keyArray, uint32_t *keys,
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const JSHandle<JSObject> object);
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void DumpFieldIndexForProfile(int index, PGOHClassLayoutDesc &desc, PGOObjKind kind);
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DECL_DUMP()
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private:
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bool IsUninitializedProperty(const JSHandle<JSObject> object, uint32_t index);
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};
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} // namespace panda::ecmascript
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#endif // ECMASCRIPT_LAYOUT_INFO_H
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