mirror of
https://github.com/openharmony/ark_js_runtime.git
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yingguofeng@huawei.com
1d9b2ac3dd
Change-Id: I97b58375c2ec30f33778d7f11fb40a9cf0ed346b Signed-off-by: yingguofeng@huawei.com <yingguofeng@huawei.com>
67 lines
2.1 KiB
C++
67 lines
2.1 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_JSNATIVEPOINTER_H
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#define ECMASCRIPT_JSNATIVEPOINTER_H
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#include "ecmascript/ecma_macros.h"
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#include "ecmascript/mem/tagged_object.h"
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namespace panda::ecmascript {
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using DeleteEntryPoint = void (*)(void *, void *);
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// Used for the requirement of ACE that wants to associated a registered C++ resource with a JSObject.
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class JSNativePointer : public TaggedObject {
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public:
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static JSNativePointer *Cast(ObjectHeader *object)
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{
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ASSERT(JSTaggedValue(object).IsJSNativePointer());
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return reinterpret_cast<JSNativePointer *>(object);
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}
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inline void ResetExternalPointer(void *externalPointer)
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{
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DeleteExternalPointer();
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SetExternalPointer(externalPointer);
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}
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inline void Destroy()
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{
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DeleteExternalPointer();
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SetExternalPointer(nullptr);
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SetDeleter(nullptr);
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SetData(nullptr);
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}
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static constexpr size_t POINTER_OFFSET = TaggedObjectSize();
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SET_GET_VOID_FIELD(ExternalPointer, POINTER_OFFSET, DELETER_OFFSET);
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SET_GET_PRIMITIVE_FIELD(Deleter, DeleteEntryPoint, DELETER_OFFSET, DATA_OFFSET);
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SET_GET_VOID_FIELD(Data, DATA_OFFSET, SIZE);
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private:
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inline void DeleteExternalPointer()
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{
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void *externalPointer = GetExternalPointer();
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if (externalPointer != nullptr) {
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DeleteEntryPoint deleter = GetDeleter();
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if (deleter != nullptr) {
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deleter(externalPointer, GetData());
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}
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}
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}
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};
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} // namespace panda::ecmascript
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#endif // ECMASCRIPT_JSNATIVEPOINTER_H
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