arkcompiler_ets_runtime/ecmascript/ecma_handle_scope.h
zhangyukun 7ffcc4b20f Sync js_runtime to openharmony
Signed-off-by: zhangyukun <zhangyukun8@huawei.com>
2021-09-08 09:20:53 +08:00

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1.4 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_HANDLE_SCOPE_H
#define ECMASCRIPT_HANDLE_SCOPE_H
#include "ecmascript/js_tagged_value.h"
namespace panda::ecmascript {
class JSThread;
/*
* Handles are only valid within a HandleScope. When a handle is created for an object a cell is allocated in the
* current HandleScope.
*/
class EcmaHandleScope {
public:
inline explicit EcmaHandleScope(JSThread *thread);
inline ~EcmaHandleScope();
static inline uintptr_t NewHandle(JSThread *thread, JSTaggedType value);
JSThread *GetThread() const
{
return thread_;
}
private:
JSThread *thread_;
JSTaggedType *prevNext_;
JSTaggedType *prevEnd_;
int prevHandleStorageIndex_{-1};
NO_COPY_SEMANTIC(EcmaHandleScope);
NO_MOVE_SEMANTIC(EcmaHandleScope);
};
} // namespace panda::ecmascript
#endif // ECMASCRIPT_HANDLE_SCOPE_H