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