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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** 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 QTCORE_QEXCEPTION_H
#define QTCORE_QEXCEPTION_H
#include <QtCore/qglobal.h>
#ifndef QT_NO_QFUTURE
#include <QtCore/qatomic.h>
#include <QtCore/qshareddata.h>
#ifndef QT_NO_EXCEPTIONS
# include <exception>
#endif
QT_BEGIN_NAMESPACE
#ifndef QT_NO_EXCEPTIONS
class Q_CORE_EXPORT QException : public std::exception
{
public:
~QException()
#ifdef Q_COMPILER_NOEXCEPT
noexcept
#else
throw()
#endif
;
virtual void raise() const;
virtual QException *clone() const;
};
class Q_CORE_EXPORT QUnhandledException : public QException
{
public:
~QUnhandledException()
#ifdef Q_COMPILER_NOEXCEPT
noexcept
#else
throw()
#endif
;
void raise() const Q_DECL_OVERRIDE;
QUnhandledException *clone() const Q_DECL_OVERRIDE;
};
namespace QtPrivate {
class Base;
class Q_CORE_EXPORT ExceptionHolder
{
public:
ExceptionHolder(QException *exception = Q_NULLPTR);
ExceptionHolder(const ExceptionHolder &other);
void operator=(const ExceptionHolder &other); // ### Qt6: copy-assign operator shouldn't return void. Remove this method and the copy-ctor, they are unneeded.
~ExceptionHolder();
QException *exception() const;
QExplicitlySharedDataPointer<Base> base;
};
class Q_CORE_EXPORT ExceptionStore
{
public:
void setException(const QException &e);
bool hasException() const;
ExceptionHolder exception();
void throwPossibleException();
bool hasThrown() const;
ExceptionHolder exceptionHolder;
};
} // namespace QtPrivate
#else // QT_NO_EXCEPTIONS
namespace QtPrivate {
class Q_CORE_EXPORT ExceptionStore
{
public:
ExceptionStore() { }
inline void throwPossibleException() {}
};
} // namespace QtPrivate
#endif // QT_NO_EXCEPTIONS
QT_END_NAMESPACE
#endif // QT_NO_QFUTURE
#endif
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