QxOrm 1.4.9
C++ Object Relational Mapping library
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construct_ptr.h
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1/****************************************************************************
2**
3** https://www.qxorm.com/
4** Copyright (C) 2013 Lionel Marty (contact@qxorm.com)
5**
6** This file is part of the QxOrm library
7**
8** This software is provided 'as-is', without any express or implied
9** warranty. In no event will the authors be held liable for any
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12** Commercial Usage
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14** accordance with the commercial license agreement provided with the
15** Software or, alternatively, in accordance with the terms contained in
16** a written agreement between you and Lionel Marty
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18** GNU General Public License Usage
19** Alternatively, this file may be used under the terms of the GNU
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31
32#ifndef _QX_CONSTRUCT_PTR_H_
33#define _QX_CONSTRUCT_PTR_H_
34
35#ifdef _MSC_VER
36#pragma once
37#endif
38
46#include <QtCore/qsharedpointer.h>
47
48#if (QT_VERSION >= QT_VERSION_CHECK(4, 6, 0))
49#include <QtCore/qscopedpointer.h>
50#endif // (QT_VERSION >= QT_VERSION_CHECK(4, 6, 0))
51
52#include <QxDao/QxDaoPointer.h>
53
54namespace qx {
55namespace trait {
56
61template <typename T>
63{
64
65private:
66
67 typedef typename std::remove_pointer<T>::type type_ptr;
68
69public:
70
71 static inline void get(T & t, bool bReset = false)
73
74private:
75
76 template <bool isAbstract /* = false */, int dummy>
77 struct new_ptr
78 { static inline void get(T & t, bool bReset) { if (bReset) { t = NULL; } else { t = new type_ptr(); } } };
79
80 template <int dummy>
81 struct new_ptr<true, dummy>
82 { static inline void get(T & t, bool bReset) { Q_UNUSED(t); Q_UNUSED(bReset); qDebug("[QxOrm] qx::trait::construct_ptr<T> : %s", "cannot instantiate abstract class"); } };
83
84};
85
86#ifdef _QX_ENABLE_BOOST
87
88template <typename T>
89struct construct_ptr< boost::scoped_ptr<T> >
90{ static inline void get(boost::scoped_ptr<T> & t, bool bReset = false) { if (bReset) { t.reset(); } else { t.reset(new T()); } } };
91
92template <typename T>
93struct construct_ptr< boost::shared_ptr<T> >
94{ static inline void get(boost::shared_ptr<T> & t, bool bReset = false) { if (bReset) { t.reset(); } else { t.reset(new T()); } } };
95
96template <typename T>
97struct construct_ptr< boost::intrusive_ptr<T> >
98{ static inline void get(boost::intrusive_ptr<T> & t, bool bReset = false) { if (bReset) { t.reset(); } else { t.reset(new T()); } } };
99
100#endif // _QX_ENABLE_BOOST
101
102template <typename T>
103struct construct_ptr< QSharedPointer<T> >
104{ static inline void get(QSharedPointer<T> & t, bool bReset = false) { if (bReset) { t = QSharedPointer<T>(); } else { t = QSharedPointer<T>(new T()); } } };
105
106#if (QT_VERSION >= QT_VERSION_CHECK(4, 6, 0))
107template <typename T>
108struct construct_ptr< QScopedPointer<T> >
109{ static inline void get(QScopedPointer<T> & t, bool bReset = false) { if (bReset) { t = QScopedPointer<T>(); } else { t = QScopedPointer<T>(new T()); } } };
110#endif // (QT_VERSION >= QT_VERSION_CHECK(4, 6, 0))
111
112template <typename T>
114{ static inline void get(qx::dao::ptr<T> & t, bool bReset = false) { if (bReset) { t = qx::dao::ptr<T>(); } else { t = qx::dao::ptr<T>(new T()); } } };
115
116template <typename T>
117struct construct_ptr< std::unique_ptr<T> >
118{ static inline void get(std::unique_ptr<T> & t, bool bReset = false) { if (bReset) { t.reset(); } else { t.reset(new T()); } } };
119
120template <typename T>
121struct construct_ptr< std::shared_ptr<T> >
122{ static inline void get(std::shared_ptr<T> & t, bool bReset = false) { if (bReset) { t.reset(); } else { t = std::make_shared<T>(); } } };
123
124} // namespace trait
125} // namespace qx
126
127#endif // _QX_CONSTRUCT_PTR_H_
qx::dao::ptr<T> : provide a classic smart-pointer (like boost::shared_ptr<T> or QSharedPointer<T>) wi...
qx::dao::ptr<T> : provide a classic smart-pointer (like boost::shared_ptr<T> or QSharedPointer<T>) wi...
Root namespace for all QxOrm library features.
static void get(T &t, bool bReset)
static void get(QScopedPointer< T > &t, bool bReset=false)
static void get(QSharedPointer< T > &t, bool bReset=false)
static void get(boost::intrusive_ptr< T > &t, bool bReset=false)
static void get(boost::scoped_ptr< T > &t, bool bReset=false)
static void get(boost::shared_ptr< T > &t, bool bReset=false)
static void get(qx::dao::ptr< T > &t, bool bReset=false)
static void get(std::shared_ptr< T > &t, bool bReset=false)
static void get(std::unique_ptr< T > &t, bool bReset=false)
qx::trait::construct_ptr<T>::get(T & t, bool bReset = false) : instantiate (or reset) a new pointer,...
std::remove_pointer< T >::type type_ptr
static void get(T &t, bool bReset=false)