72 lines
1.9 KiB
C++
72 lines
1.9 KiB
C++
/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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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 ART_RUNTIME_REFLECTIVE_REFERENCE_H_
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#define ART_RUNTIME_REFLECTIVE_REFERENCE_H_
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#include "android-base/macros.h"
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#include "base/macros.h"
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#include "mirror/object_reference.h"
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namespace art {
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class ArtField;
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class ArtMethod;
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// A reference to a ArtField or ArtMethod.
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template <class ReflectiveType>
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class ReflectiveReference {
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public:
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static_assert(std::is_same_v<ReflectiveType, ArtMethod> ||
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std::is_same_v<ReflectiveType, ArtField>,
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"Uknown type!");
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ReflectiveReference() : val_(nullptr) {}
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explicit ReflectiveReference(ReflectiveType* r) : val_(r) {}
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ReflectiveReference<ReflectiveType>& operator=(const ReflectiveReference<ReflectiveType>& t) =
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default;
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ReflectiveType* Ptr() {
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return val_;
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}
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void Assign(ReflectiveType* r) {
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val_ = r;
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}
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bool IsNull() const {
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return val_ == nullptr;
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}
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bool operator==(const ReflectiveReference<ReflectiveType>& rr) const {
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return val_ == rr.val_;
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}
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bool operator!=(const ReflectiveReference<ReflectiveType>& rr) const {
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return !operator==(rr);
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}
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bool operator==(std::nullptr_t) const {
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return IsNull();
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}
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bool operator!=(std::nullptr_t) const {
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return !IsNull();
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}
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private:
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ReflectiveType* val_;
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};
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} // namespace art
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#endif // ART_RUNTIME_REFLECTIVE_REFERENCE_H_
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