mirror of
https://github.com/darlinghq/darling-WTF.git
synced 2024-11-23 11:59:47 +00:00
71 lines
2.2 KiB
C++
71 lines
2.2 KiB
C++
/*
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* Copyright (C) 2020 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include <wtf/CompactPointerTuple.h>
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#include <wtf/Noncopyable.h>
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#include <wtf/RefPtr.h>
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namespace WTF {
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template<typename T, typename Type>
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class CompactRefPtrTuple final {
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WTF_MAKE_FAST_ALLOCATED;
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WTF_MAKE_NONCOPYABLE(CompactRefPtrTuple);
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public:
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CompactRefPtrTuple() = default;
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~CompactRefPtrTuple()
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{
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WTF::DefaultRefDerefTraits<T>::derefIfNotNull(m_data.pointer());
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}
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T* pointer() const
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{
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return m_data.pointer();
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}
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void setPointer(T* pointer)
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{
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WTF::DefaultRefDerefTraits<T>::refIfNotNull(pointer);
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auto* old = m_data.pointer();
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m_data.setPointer(pointer);
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WTF::DefaultRefDerefTraits<T>::derefIfNotNull(old);
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}
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Type type() const { return m_data.type(); }
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void setType(Type type)
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{
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m_data.setType(type);
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}
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private:
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CompactPointerTuple<T*, Type> m_data;
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};
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} // namespace WTF
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using WTF::CompactRefPtrTuple;
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