arkcompiler_ets_runtime/ecmascript/jspandafile/constpool_value.h
2022-08-02 15:42:50 +08:00

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2.0 KiB
C++

/*
* Copyright (c) 2022 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_JSPANDAFILE_CONSTPOOL_VALUE_H
#define ECMASCRIPT_JSPANDAFILE_CONSTPOOL_VALUE_H
#include "libpandabase/utils/bit_field.h"
namespace panda::ecmascript {
enum class ConstPoolType : uint8_t {
STRING,
BASE_FUNCTION,
NC_FUNCTION,
GENERATOR_FUNCTION,
ASYNC_FUNCTION,
CLASS_FUNCTION,
METHOD,
ARRAY_LITERAL,
OBJECT_LITERAL,
CLASS_LITERAL,
ASYNC_GENERATOR_FUNCTION,
};
class ConstPoolValue {
public:
ConstPoolValue(ConstPoolType type, uint32_t index)
: value_(ConstPoolIndexField::Encode(index) | ConstPoolTypeField::Encode(type))
{
}
explicit ConstPoolValue(uint64_t v) : value_(v) {}
~ConstPoolValue() = default;
NO_COPY_SEMANTIC(ConstPoolValue);
NO_MOVE_SEMANTIC(ConstPoolValue);
inline uint64_t GetValue() const
{
return value_;
}
inline uint32_t GetConstpoolIndex() const
{
return ConstPoolIndexField::Get(value_);
}
inline ConstPoolType GetConstpoolType() const
{
return ConstPoolTypeField::Get(value_);
}
private:
// NOLINTNEXTLINE(readability-magic-numbers)
using ConstPoolIndexField = BitField<uint32_t, 0, 32>; // 32: 32 bit
// NOLINTNEXTLINE(readability-magic-numbers)
using ConstPoolTypeField = BitField<ConstPoolType, 32, 4>; // 32: offset, 4: 4bit
uint64_t value_ {0};
};
} // namespace panda::ecmascript
#endif // ECMASCRIPT_JSPANDAFILE_CONSTPOOL_VALUE_H