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https://github.com/SerenityOS/serenity.git
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2502b5713d
This is necessary for the next commit (and might even help performance in some very weird cases). (cherry picked from commit e5f87eb12bdad9dfbf8a825461ac17fdb8457f50; amended to add a missing include of StdLibExtras.h for move())
34 lines
582 B
C++
34 lines
582 B
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/Platform.h>
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#include <AK/StdLibExtras.h>
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namespace AK {
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template<typename T>
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class TemporaryChange {
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public:
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TemporaryChange(T& variable, T value)
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: m_variable(variable)
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, m_old_value(move(variable))
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{
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m_variable = move(value);
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}
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~TemporaryChange() { m_variable = move(m_old_value); }
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private:
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T& m_variable;
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T m_old_value;
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};
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}
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#if USING_AK_GLOBALLY
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using AK::TemporaryChange;
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#endif
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