diff --git a/src/libs/vmisc/backport/qscopeguard.h b/src/libs/vmisc/backport/qscopeguard.h new file mode 100644 index 000000000..773e292a2 --- /dev/null +++ b/src/libs/vmisc/backport/qscopeguard.h @@ -0,0 +1,83 @@ +/**************************************************************************** +** +** Copyright (C) 2018 Klarälvdalens Datakonsult AB, a KDAB Group company, info@kdab.com, author Sérgio Martins +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the QtCore module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 2.0 or (at your option) the GNU General +** Public license version 3 or any later version approved by the KDE Free +** Qt Foundation. The licenses are as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ +#ifndef QSCOPEGUARD_H +#define QSCOPEGUARD_H +#include + +#if QT_VERSION < QT_VERSION_CHECK(5, 12, 0) +QT_BEGIN_NAMESPACE +template class QScopeGuard; +template QScopeGuard qScopeGuard(F f); +template +class QScopeGuard +{ +public: + QScopeGuard(QScopeGuard &&other) Q_DECL_NOEXCEPT + : m_func(std::move(other.m_func)) + , m_invoke(other.m_invoke) + { + other.dismiss(); + } + ~QScopeGuard() + { + if (m_invoke) + m_func(); + } + void dismiss() Q_DECL_NOEXCEPT + { + m_invoke = false; + } +private: + explicit QScopeGuard(F f) Q_DECL_NOEXCEPT + : m_func(std::move(f)) + { + } + Q_DISABLE_COPY(QScopeGuard) + F m_func; + bool m_invoke = true; + friend QScopeGuard qScopeGuard(F); +}; +template +QScopeGuard qScopeGuard(F f) +{ + return QScopeGuard(std::move(f)); +} +QT_END_NAMESPACE +#endif // QT_VERSION < QT_VERSION_CHECK(5, 12, 0) +#endif // QSCOPEGUARD_H diff --git a/src/libs/vmisc/vmisc.pri b/src/libs/vmisc/vmisc.pri index b7b50a8fc..cc719be0e 100644 --- a/src/libs/vmisc/vmisc.pri +++ b/src/libs/vmisc/vmisc.pri @@ -42,7 +42,8 @@ HEADERS += \ $$PWD/qt_dispatch/qt_dispatch.h \ $$PWD/vdatastreamenum.h \ $$PWD/vmodifierkey.h \ - $$PWD/typedef.h + $$PWD/typedef.h \ + $$PWD/backport/qscopeguard.h # Qt's versions # 5.2.0, 5.2.1