arkcompiler_ets_runtime/ecmascript/symbol_table.h
zhangyukun a97747fe18 Description:sync from code from wgr_master to ohos
Signed-off-by: zhangyukun <zhangyukun8@huawei.com>
Change-Id: Ic66a9e649de8c0ce530483296fe323b8f50621fb
2021-12-21 09:36:03 +08:00

66 lines
2.3 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_SYMBOL_TABLE_H
#define ECMASCRIPT_SYMBOL_TABLE_H
#include "ecmascript/tagged_hash_table.h"
#include "ecmascript/ecma_string.h"
#include "ecmascript/js_thread.h"
namespace panda::ecmascript {
class SymbolTable : public TaggedHashTable<SymbolTable> {
public:
using HashTable = TaggedHashTable<SymbolTable>;
static SymbolTable *Cast(ObjectHeader *object)
{
return reinterpret_cast<SymbolTable *>(object);
}
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 inline bool IsMatch(const JSTaggedValue &name, const JSTaggedValue &other);
static inline uint32_t Hash(const JSTaggedValue &obj);
static const int DEFAULT_ELEMENTS_NUMBER = 64;
static JSHandle<SymbolTable> Create(JSThread *thread, int numberOfElements = DEFAULT_ELEMENTS_NUMBER)
{
return HashTable::Create(thread, numberOfElements);
}
inline bool ContainsKey(JSThread *thread, const JSTaggedValue &key);
inline JSTaggedValue GetSymbol(const JSTaggedValue &key);
inline JSTaggedValue FindSymbol(JSThread *thread, const JSTaggedValue &value);
static constexpr int ENTRY_KEY_INDEX = 0;
static constexpr int ENTRY_VALUE_INDEX = 1;
static constexpr int ENTRY_SIZE = 2;
};
} // namespace panda::ecmascript
#endif // ECMASCRIPT_SYMBOL_TABLE_H