mirror of
https://github.com/openharmony/ark_js_runtime.git
synced 2026-08-26 18:06:39 -04:00
zhangyukun
50 lines
1.6 KiB
C++
50 lines
1.6 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_REGEXP_PARSER_CACHE_H
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#define ECMASCRIPT_REGEXP_PARSER_CACHE_H
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#include <array>
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#include "ecmascript/ecma_string.h"
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#include "ecmascript/js_tagged_value.h"
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namespace panda::ecmascript {
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class RegExpParserCache {
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public:
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RegExpParserCache();
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~RegExpParserCache();
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static constexpr size_t CACHE_SIZE = 128;
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bool IsInCache(EcmaString *pattern, const uint32_t flags);
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std::pair<JSTaggedValue, size_t> GetCache(EcmaString *pattern, const uint32_t flags);
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void SetCache(EcmaString *pattern, const uint32_t flags, const JSTaggedValue codeBuffer, const size_t bufferSize);
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void Clear();
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private:
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size_t GetHash(EcmaString *pattern, const uint32_t flags);
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struct ParserKey {
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EcmaString *pattern_{nullptr};
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uint32_t flags_{UINT32_MAX};
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JSTaggedValue codeBuffer_{JSTaggedValue::Hole()};
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size_t bufferSize_{0};
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};
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std::array<ParserKey, CACHE_SIZE> info_{};
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};
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} // namespace panda::ecmascript
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#endif // ECMASCRIPT_REGEXP_PARSER_CACHE_H
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