/**************************************************************************** ** ** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies). ** Contact: http://www.qt-project.org/legal ** ** This file is part of the QtQml 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 Digia. For licensing terms and ** conditions see http://qt.digia.com/licensing. For further information ** use the contact form at http://qt.digia.com/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 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, Digia gives you certain additional ** rights. These rights are described in the Digia 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. ** ** ** $QT_END_LICENSE$ ** ****************************************************************************/ #ifndef REFPTR_H #define REFPTR_H #include "PassRefPtr.h" template class RefPtr { public: RefPtr() : m_ptr(0) {} RefPtr(const RefPtr &other) : m_ptr(other.m_ptr) { if (m_ptr) m_ptr->ref(); } RefPtr& operator=(const RefPtr& other) { if (other.m_ptr) other.m_ptr->ref(); if (m_ptr) m_ptr->deref(); m_ptr = other.m_ptr; return *this; } RefPtr(const PassRefPtr& other) : m_ptr(other.leakRef()) { } ~RefPtr() { if (m_ptr) m_ptr->deref(); } T* operator->() const { return m_ptr; } T* get() const { return m_ptr; } bool operator!() const { return !m_ptr; } PassRefPtr release() { T* ptr = m_ptr; m_ptr = 0; return adoptRef(ptr); } private: T* m_ptr; }; #endif // REFPTR_H