134 lines
3.6 KiB
C++
134 lines
3.6 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2016 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of the QtCore module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 3 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL3 included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 3 requirements
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** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 2.0 or (at your option) the GNU General
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** Public license version 3 or any later version approved by the KDE Free
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** Qt Foundation. The licenses are as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-2.0.html and
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** https://www.gnu.org/licenses/gpl-3.0.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef QTCORE_QEXCEPTION_H
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#define QTCORE_QEXCEPTION_H
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#include <QtCore/qglobal.h>
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#ifndef QT_NO_QFUTURE
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#include <QtCore/qatomic.h>
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#include <QtCore/qshareddata.h>
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#ifndef QT_NO_EXCEPTIONS
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# include <exception>
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#endif
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QT_BEGIN_NAMESPACE
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#ifndef QT_NO_EXCEPTIONS
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class Q_CORE_EXPORT QException : public std::exception
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{
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public:
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~QException()
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#ifdef Q_COMPILER_NOEXCEPT
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noexcept
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#else
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throw()
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#endif
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;
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virtual void raise() const;
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virtual QException *clone() const;
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};
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class Q_CORE_EXPORT QUnhandledException : public QException
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{
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public:
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~QUnhandledException()
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#ifdef Q_COMPILER_NOEXCEPT
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noexcept
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#else
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throw()
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#endif
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;
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void raise() const Q_DECL_OVERRIDE;
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QUnhandledException *clone() const Q_DECL_OVERRIDE;
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};
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namespace QtPrivate {
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class Base;
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class Q_CORE_EXPORT ExceptionHolder
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{
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public:
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ExceptionHolder(QException *exception = Q_NULLPTR);
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ExceptionHolder(const ExceptionHolder &other);
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void operator=(const ExceptionHolder &other); // ### Qt6: copy-assign operator shouldn't return void. Remove this method and the copy-ctor, they are unneeded.
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~ExceptionHolder();
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QException *exception() const;
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QExplicitlySharedDataPointer<Base> base;
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};
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class Q_CORE_EXPORT ExceptionStore
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{
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public:
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void setException(const QException &e);
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bool hasException() const;
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ExceptionHolder exception();
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void throwPossibleException();
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bool hasThrown() const;
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ExceptionHolder exceptionHolder;
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};
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} // namespace QtPrivate
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#else // QT_NO_EXCEPTIONS
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namespace QtPrivate {
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class Q_CORE_EXPORT ExceptionStore
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{
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public:
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ExceptionStore() { }
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inline void throwPossibleException() {}
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};
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} // namespace QtPrivate
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#endif // QT_NO_EXCEPTIONS
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QT_END_NAMESPACE
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#endif // QT_NO_QFUTURE
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#endif
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