arkcompiler_ets_runtime/ecmascript/template_map.h
linxiang8 1fe4846e88 Signed-off-by: linxiang8 <linxiang8@huawei.com>
Change-Id: I474a84db7d80ec0f5370a4f58df115963e21d90f

Change-Id: I471252903083c4d2d15f389b23afbc6c5427f664
2023-03-02 10:10:33 +08:00

72 lines
2.5 KiB
C++

/*
* Copyright (c) 2021 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_TEMPLATE_MAP_H
#define ECMASCRIPT_TEMPLATE_MAP_H
#include "ecmascript/js_array.h"
#include "ecmascript/tagged_hash_table.h"
namespace panda::ecmascript {
class TemplateMap : public TaggedHashTable<TemplateMap> {
public:
using HashTable = TaggedHashTable<TemplateMap>;
static inline bool IsMatch(const JSTaggedValue &key, const JSTaggedValue &other)
{
return key == other;
}
static inline int Hash(const JSTaggedValue &obj)
{
ASSERT(obj.IsJSArray());
JSArray *array = JSArray::Cast(obj.GetTaggedObject());
uint32_t len = array->GetArrayLength();
return len;
}
inline static int GetKeyIndex(int entry)
{
return HashTable::TABLE_HEADER_SIZE + entry * GetEntrySize() + ENTRY_KEY_INDEX;
}
inline static int GetValueIndex(int entry)
{
return HashTable::TABLE_HEADER_SIZE + entry * GetEntrySize() + ENTRY_VALUE_INDEX;
}
inline static int GetEntryIndex(int entry)
{
return HashTable::TABLE_HEADER_SIZE + entry * GetEntrySize();
}
inline static int GetEntrySize()
{
return ENTRY_SIZE;
}
static TemplateMap *Cast(TaggedObject *object)
{
return reinterpret_cast<TemplateMap *>(object);
}
static const int DEFAULT_ELEMENTS_NUMBER = 16;
static JSHandle<TemplateMap> Create(JSThread *thread, int numberOfElements = DEFAULT_ELEMENTS_NUMBER)
{
return HashTable::Create(thread, numberOfElements);
}
static int ComputeCompactSize([[maybe_unused]] const JSHandle<TemplateMap> &table, int computeHashTableSize,
[[maybe_unused]] int tableSize, [[maybe_unused]] int addedElements)
{
return computeHashTableSize;
}
static const int ENTRY_SIZE = 2;
static const int ENTRY_KEY_INDEX = 0;
static const int ENTRY_VALUE_INDEX = 1;
};
} // namespace panda::ecmascript
#endif // ECMASCRIPT_TEMPLATE_MAP_H