1/*
2 Copyright (c) 2009 Volker Krause <vkrause@kde.org>
3
4 This library is free software; you can redistribute it and/or modify it
5 under the terms of the GNU Library General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or (at your
7 option) any later version.
8
9 This library is distributed in the hope that it will be useful, but WITHOUT
10 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
12 License for more details.
13
14 You should have received a copy of the GNU Library General Public License
15 along with this library; see the file COPYING.LIB. If not, write to the
16 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
17 02110-1301, USA.
18*/
19
20#ifndef KPIMUTILS_SUPERTRAIT_H
21#define KPIMUTILS_SUPERTRAIT_H
22
23namespace KPIMUtils {
24
25 /**
26 @internal
27 @see super_class
28 */
29 template <typename Super>
30 struct SuperClassTrait
31 {
32 typedef Super Type;
33 };
34
35 /**
36 Type trait to provide information about a base class for a given class.
37 Used eg. for the Akonadi payload mechanism.
38
39 To provide base class introspection for own types, extend this trait as follows:
40 @code
41 namespace KPIMUtils
42 {
43 template <> struct SuperClass<MyClass> : public SuperClassTrait<MyBaseClass>{};
44 }
45 @endcode
46 */
47 template <typename Class> struct SuperClass : public SuperClassTrait<Class>{};
48}
49
50#endif
51