/**************************************************************************** | |
** | |
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). | |
** All rights reserved. | |
** Contact: Nokia Corporation (qt-info@nokia.com) | |
** | |
** This file is part of the QtXmlPatterns module of the Qt Toolkit. | |
** | |
** $QT_BEGIN_LICENSE:LGPL$ | |
** GNU Lesser General Public License Usage | |
** This file may be used under the terms of the GNU Lesser General Public | |
** License version 2.1 as published by the Free Software Foundation and | |
** appearing in the file LICENSE.LGPL included in the packaging of this | |
** file. Please review the following information to ensure the GNU Lesser | |
** General Public License version 2.1 requirements will be met: | |
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. | |
** | |
** In addition, as a special exception, Nokia gives you certain additional | |
** rights. These rights are described in the Nokia Qt LGPL Exception | |
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. | |
** | |
** GNU General Public License Usage | |
** Alternatively, this file may be used under the terms of the GNU General | |
** Public License version 3.0 as published by the Free Software Foundation | |
** and appearing in the file LICENSE.GPL included in the packaging of this | |
** file. Please review the following information to ensure the GNU General | |
** Public License version 3.0 requirements will be met: | |
** http://www.gnu.org/copyleft/gpl.html. | |
** | |
** Other Usage | |
** Alternatively, this file may be used in accordance with the terms and | |
** conditions contained in a signed written agreement between you and Nokia. | |
** | |
** | |
** | |
** | |
** | |
** $QT_END_LICENSE$ | |
** | |
****************************************************************************/ | |
// | |
// W A R N I N G | |
// ------------- | |
// | |
// This file is not part of the Qt API. It exists purely as an | |
// implementation detail. This header file may change from version to | |
// version without notice, or even be removed. | |
// | |
// We mean it. | |
#ifndef QPatternist_AutoPtr_p_h | |
#define QPatternist_AutoPtr_p_h | |
#include <QtGlobal> | |
QT_BEGIN_NAMESPACE | |
namespace QPatternist | |
{ | |
template<typename T> | |
class AutoPtrRef | |
{ | |
public: | |
explicit AutoPtrRef(T *const other) : m_ptr(other) | |
{ | |
} | |
T* m_ptr; | |
}; | |
template<typename T> | |
class AutoPtr | |
{ | |
public: | |
explicit inline AutoPtr(T *pointer = 0) : m_ptr(pointer) | |
{ | |
} | |
inline AutoPtr(AutoPtr<T> &other) : m_ptr(other.release()) | |
{ | |
} | |
inline ~AutoPtr() | |
{ | |
delete m_ptr; | |
} | |
inline T &operator*() const | |
{ | |
Q_ASSERT_X(m_ptr, Q_FUNC_INFO, ""); | |
return *m_ptr; | |
} | |
T *operator->() const | |
{ | |
Q_ASSERT_X(m_ptr, Q_FUNC_INFO, ""); | |
return m_ptr; | |
} | |
inline bool operator!() const | |
{ | |
return !m_ptr; | |
} | |
inline operator bool() const | |
{ | |
return m_ptr != 0; | |
} | |
AutoPtr(AutoPtrRef<T> ref) : m_ptr(ref.m_ptr) | |
{ | |
} | |
AutoPtr& operator=(AutoPtrRef<T> ref) | |
{ | |
if(ref.m_ptr != m_ptr) | |
{ | |
delete m_ptr; | |
m_ptr = ref.m_ptr; | |
} | |
return *this; | |
} | |
#ifndef QT_NO_MEMBER_TEMPLATES | |
template<typename L> | |
operator AutoPtrRef<L>() | |
{ | |
return AutoPtrRef<L>(this->release()); | |
} | |
template<typename L> | |
operator AutoPtr<L>() | |
{ | |
return AutoPtr<L>(this->release()); | |
} | |
template<typename L> | |
inline AutoPtr(AutoPtr<L>& other) : m_ptr(other.release()) | |
{ | |
} | |
#endif | |
inline T *release() | |
{ | |
T *const retval = m_ptr; | |
m_ptr = 0; | |
return retval; | |
} | |
inline T *data() const | |
{ | |
return m_ptr; | |
} | |
void reset(T * other = 0) | |
{ | |
if(other != m_ptr) | |
{ | |
delete m_ptr; | |
m_ptr = other; | |
} | |
} | |
inline AutoPtr &operator=(AutoPtr &other) | |
{ | |
reset(other.release()); | |
return *this; | |
} | |
private: | |
T *m_ptr; | |
}; | |
} | |
QT_END_NAMESPACE | |
#endif |