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https://gitee.com/openharmony/arkcompiler_ets_runtime
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84489b5cff
Issue: https://gitee.com/openharmony/arkcompiler_ets_runtime/issues/I9129O Signed-off-by: yaoyuan <yuanyao14@huawei.com> Change-Id: I9c2022042748542fd909043143c31bb3112841b9
99 lines
3.5 KiB
C++
99 lines
3.5 KiB
C++
/*
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* Copyright (c) 2023 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_ELEMENTS_H
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#define ECMASCRIPT_ELEMENTS_H
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#include "ecmascript/global_env_constants.h"
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#include "ecmascript/js_tagged_value.h"
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#include "ecmascript/mem/c_containers.h"
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namespace panda::ecmascript {
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enum class ElementsKind : uint8_t {
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NONE = 0x00UL,
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HOLE = 0x01UL,
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INT = 0x1UL << 1, // 2
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NUMBER = (0x1UL << 2) | INT, // 6
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STRING = 0x1UL << 3, // 8
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OBJECT = 0x1UL << 4, // 16
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TAGGED = 0x1EUL, // 30
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HOLE_INT = HOLE | INT,
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HOLE_NUMBER = HOLE | NUMBER,
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HOLE_STRING = HOLE | STRING,
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HOLE_OBJECT = HOLE | OBJECT,
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HOLE_TAGGED = HOLE | TAGGED,
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GENERIC = HOLE_TAGGED,
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DICTIONARY = HOLE_TAGGED,
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};
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class PUBLIC_API Elements {
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public:
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static CMap<ElementsKind, ConstantIndex> InitializeHClassMap();
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static std::string GetString(ElementsKind kind);
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static bool IsInt(ElementsKind kind);
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static bool IsNumber(ElementsKind kind);
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static bool IsTagged(ElementsKind kind);
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static bool IsObject(ElementsKind kind);
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static bool IsHole(ElementsKind kind);
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static bool IsGeneric(ElementsKind kind)
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{
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return kind == ElementsKind::GENERIC;
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}
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static bool IsNone(ElementsKind kind)
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{
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return kind == ElementsKind::NONE;
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}
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static bool IsComplex(ElementsKind kind)
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{
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return IsNumber(kind) || IsTagged(kind);
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}
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static bool IsInNumbers(ElementsKind kind)
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{
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return (static_cast<uint32_t>(kind) > static_cast<uint32_t>(ElementsKind::HOLE) &&
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static_cast<uint32_t>(kind) < static_cast<uint32_t>(ElementsKind::STRING));
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}
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static bool IsHoleInt(ElementsKind kind)
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{
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return kind == ElementsKind::HOLE_INT;
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}
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static bool IsHoleNumber(ElementsKind kind)
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{
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return kind == ElementsKind::HOLE_NUMBER;
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}
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static ConstantIndex GetGlobalContantIndexByKind(ElementsKind kind);
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static ElementsKind MergeElementsKind(ElementsKind curKind, ElementsKind newKind);
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static ElementsKind FixElementsKind(ElementsKind oldKind);
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static ElementsKind ToElementsKind(JSTaggedValue value, ElementsKind kind);
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static void MigrateArrayWithKind(const JSThread *thread, const JSHandle<JSObject> &object,
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const ElementsKind oldKind, const ElementsKind newKind);
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private:
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static JSTaggedValue MigrateFromRawValueToHeapValue(const JSThread *thread, const JSHandle<JSObject> object,
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bool needCOW, bool isIntKind);
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static JSTaggedValue MigrateFromHeapValueToRawValue(const JSThread *thread, const JSHandle<JSObject> object,
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bool needCOW, bool isIntKind);
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static void MigrateFromHoleIntToHoleNumber(const JSThread *thread, const JSHandle<JSObject> object);
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static void MigrateFromHoleNumberToHoleInt(const JSThread *thread, const JSHandle<JSObject> object);
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};
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} // namespace panda::ecmascript
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#endif // ECMASCRIPT_ELEMENTS_H
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