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QxOrm
1.2.8
C++ Object Relational Mapping library
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00001 /**************************************************************************** 00002 ** 00003 ** http://www.qxorm.com/ 00004 ** Copyright (C) 2013 Lionel Marty (contact@qxorm.com) 00005 ** 00006 ** This file is part of the QxOrm library 00007 ** 00008 ** This software is provided 'as-is', without any express or implied 00009 ** warranty. In no event will the authors be held liable for any 00010 ** damages arising from the use of this software 00011 ** 00012 ** Commercial Usage 00013 ** Licensees holding valid commercial QxOrm licenses may use this file in 00014 ** accordance with the commercial license agreement provided with the 00015 ** Software or, alternatively, in accordance with the terms contained in 00016 ** a written agreement between you and Lionel Marty 00017 ** 00018 ** GNU General Public License Usage 00019 ** Alternatively, this file may be used under the terms of the GNU 00020 ** General Public License version 3.0 as published by the Free Software 00021 ** Foundation and appearing in the file 'license.gpl3.txt' included in the 00022 ** packaging of this file. Please review the following information to 00023 ** ensure the GNU General Public License version 3.0 requirements will be 00024 ** met : http://www.gnu.org/copyleft/gpl.html 00025 ** 00026 ** If you are unsure which license is appropriate for your use, or 00027 ** if you have questions regarding the use of this file, please contact : 00028 ** contact@qxorm.com 00029 ** 00030 ****************************************************************************/ 00031 00032 #ifndef _QX_CONSTRUCT_PTR_H_ 00033 #define _QX_CONSTRUCT_PTR_H_ 00034 00035 #ifdef _MSC_VER 00036 #pragma once 00037 #endif 00038 00046 #include <boost/scoped_ptr.hpp> 00047 #include <boost/shared_ptr.hpp> 00048 #include <boost/intrusive_ptr.hpp> 00049 #include <boost/type_traits/is_abstract.hpp> 00050 #include <boost/type_traits/remove_pointer.hpp> 00051 00052 #include <QtCore/qsharedpointer.h> 00053 00054 #if (QT_VERSION >= 0x040600) 00055 #include <QtCore/qscopedpointer.h> 00056 #endif // (QT_VERSION >= 0x040600) 00057 00058 #include <QxDao/QxDaoPointer.h> 00059 00060 namespace qx { 00061 namespace trait { 00062 00067 template <typename T> 00068 struct construct_ptr 00069 { 00070 00071 private: 00072 00073 typedef typename boost::remove_pointer<T>::type type_ptr; 00074 00075 public: 00076 00077 static inline void get(T & t) 00078 { new_ptr<boost::is_abstract<type_ptr>::value, 0>::get(t); } 00079 00080 private: 00081 00082 template <bool isAbstract /* = false */, int dummy> 00083 struct new_ptr 00084 { static inline void get(T & t) { t = new type_ptr(); } }; 00085 00086 template <int dummy> 00087 struct new_ptr<true, dummy> 00088 { static inline void get(T & t) { Q_UNUSED(t); qDebug("[QxOrm] qx::trait::construct_ptr<T> : %s", "cannot instantiate abstract class"); } }; 00089 00090 }; 00091 00092 template <typename T> 00093 struct construct_ptr< boost::scoped_ptr<T> > 00094 { static inline void get(boost::scoped_ptr<T> & t) { t.reset(new T()); } }; 00095 00096 template <typename T> 00097 struct construct_ptr< boost::shared_ptr<T> > 00098 { static inline void get(boost::shared_ptr<T> & t) { t.reset(new T()); } }; 00099 00100 template <typename T> 00101 struct construct_ptr< boost::intrusive_ptr<T> > 00102 { static inline void get(boost::intrusive_ptr<T> & t) { t.reset(new T()); } }; 00103 00104 template <typename T> 00105 struct construct_ptr< QSharedPointer<T> > 00106 { static inline void get(QSharedPointer<T> & t) { t = QSharedPointer<T>(new T()); } }; 00107 00108 #if (QT_VERSION >= 0x040600) 00109 template <typename T> 00110 struct construct_ptr< QScopedPointer<T> > 00111 { static inline void get(QScopedPointer<T> & t) { t = QScopedPointer<T>(new T()); } }; 00112 #endif // (QT_VERSION >= 0x040600) 00113 00114 template <typename T> 00115 struct construct_ptr< qx::dao::ptr<T> > 00116 { static inline void get(qx::dao::ptr<T> & t) { t = qx::dao::ptr<T>(new T()); } }; 00117 00118 } // namespace trait 00119 } // namespace qx 00120 00121 #endif // _QX_CONSTRUCT_PTR_H_