QxOrm  1.4.4
C++ Object Relational Mapping library
QxAnyCastDynamic.h
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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
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00012 ** Commercial Usage
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00016 ** a written agreement between you and Lionel Marty
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00018 ** GNU General Public License Usage
00019 ** Alternatively, this file may be used under the terms of the GNU
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00031 
00032 #ifndef _QX_ANY_CAST_DYNAMIC_H_
00033 #define _QX_ANY_CAST_DYNAMIC_H_
00034 
00035 #ifdef _MSC_VER
00036 #pragma once
00037 #endif
00038 
00046 #include <QtCore/qsharedpointer.h>
00047 
00048 #include <QxCommon/QxAny.h>
00049 
00050 #include <QxDao/QxDaoPointer.h>
00051 
00052 namespace qx {
00053 
00054 template <typename T>
00055 struct any_cast_dynamic
00056 { static T get(const qx::any & a) { return qx::any_cast<T>(a); } };
00057 
00058 template <typename T>
00059 struct any_cast_dynamic<T *>
00060 {
00061    static T * get(const qx::any & a)
00062    {
00063       if (a.empty()) { return NULL; }
00064       qx::any * b = const_cast<qx::any *>(& a);
00065       T ** t = qx::unsafe_any_cast<T *>(b);
00066       if (! t) { return NULL; }
00067       return (* t);
00068    }
00069 };
00070 
00071 #ifdef _QX_ENABLE_BOOST
00072 
00073 template <typename T>
00074 struct any_cast_dynamic< boost::shared_ptr<T> >
00075 {
00076    static boost::shared_ptr<T> get(const qx::any & a)
00077    {
00078       if (a.empty()) { return boost::shared_ptr<T>(); }
00079       qx::any * b = const_cast<qx::any *>(& a);
00080       boost::shared_ptr<T> * t = qx::unsafe_any_cast< boost::shared_ptr<T> >(b);
00081       if (! t) { return boost::shared_ptr<T>(); }
00082       return (* t);
00083    }
00084 };
00085 
00086 #endif // _QX_ENABLE_BOOST
00087 
00088 template <typename T>
00089 struct any_cast_dynamic< QSharedPointer<T> >
00090 {
00091    static QSharedPointer<T> get(const qx::any & a)
00092    {
00093       if (a.empty()) { return QSharedPointer<T>(); }
00094       qx::any * b = const_cast<qx::any *>(& a);
00095       QSharedPointer<T> * t = qx::unsafe_any_cast< QSharedPointer<T> >(b);
00096       if (! t) { return QSharedPointer<T>(); }
00097       return (* t);
00098    }
00099 };
00100 
00101 template <typename T>
00102 struct any_cast_dynamic< qx::dao::ptr<T> >
00103 {
00104    static qx::dao::ptr<T> get(const qx::any & a)
00105    {
00106       if (a.empty()) { return qx::dao::ptr<T>(); }
00107       qx::any * b = const_cast<qx::any *>(& a);
00108       qx::dao::ptr<T> * t = qx::unsafe_any_cast< qx::dao::ptr<T> >(b);
00109       if (! t) { return qx::dao::ptr<T>(); }
00110       return (* t);
00111    }
00112 };
00113 
00114 template <typename T>
00115 struct any_cast_dynamic< std::shared_ptr<T> >
00116 {
00117    static std::shared_ptr<T> get(const qx::any & a)
00118    {
00119       if (a.empty()) { return std::shared_ptr<T>(); }
00120       qx::any * b = const_cast<qx::any *>(& a);
00121       std::shared_ptr<T> * t = qx::unsafe_any_cast< std::shared_ptr<T> >(b);
00122       if (! t) { return std::shared_ptr<T>(); }
00123       return (* t);
00124    }
00125 };
00126 
00127 } // namespace qx
00128 
00129 #endif // _QX_ANY_CAST_DYNAMIC_H_