50 lines
1.2 KiB
C++
50 lines
1.2 KiB
C++
/*
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* SPDX-License-Identifier: GPL-3.0-only
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* MuseScore-CLA-applies
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*
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* MuseScore
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* Music Composition & Notation
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*
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* Copyright (C) 2021 MuseScore BVBA and others
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 3 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#ifndef MU_GLOBAL_DEFER_H
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#define MU_GLOBAL_DEFER_H
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#include <functional>
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namespace mu {
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struct Defer
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{
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template<class F>
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Defer(F f)
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: m_f(f) {}
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~Defer()
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{
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if (m_f) {
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m_f();
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}
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}
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std::function<void()> m_f;
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};
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}
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#define CONCAT_IMPL(x, y) x##y
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#define MACRO_CONCAT(x, y) CONCAT_IMPL(x, y)
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#define DEFER const Defer MACRO_CONCAT(defer_, __LINE__) = [&]()
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#endif // MU_GLOBAL_DEFER_H
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