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Diffstat (limited to 'src/xmlpatterns/utils/qautoptr_p.h')
| -rw-r--r-- | src/xmlpatterns/utils/qautoptr_p.h | 177 |
1 files changed, 177 insertions, 0 deletions
diff --git a/src/xmlpatterns/utils/qautoptr_p.h b/src/xmlpatterns/utils/qautoptr_p.h new file mode 100644 index 0000000..9f40400 --- /dev/null +++ b/src/xmlpatterns/utils/qautoptr_p.h @@ -0,0 +1,177 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the QtXmlPatterns module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** GNU Lesser General Public License Usage +** Alternatively, 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 1.0, 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. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +// +// 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 |