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////////////////////////////////////////////////////////////////////////////////
// The Loki Library
// Copyright (c) 2006 Peter Kümmel
// Permission to use, copy, modify, distribute and sell this software for any
// purpose is hereby granted without fee, provided that the above copyright
// notice appear in all copies and that both that copyright notice and this
// permission notice appear in supporting documentation.
// The author makes no representations about the
// suitability of this software for any purpose. It is provided "as is"
// without express or implied warranty.
////////////////////////////////////////////////////////////////////////////////
#ifndef LOKI_REGISTER_INC_
#define LOKI_REGISTER_INC_
// $Id: Register.h 776 2006-11-09 13:12:57Z syntheticpp $
#include "TypeManip.h"
#include "HierarchyGenerators.h"
/// \defgroup RegisterGroup Register
namespace Loki
{
////////////////////////////////////////////////////////////////////////////////
//
// Helper classes/functions for RegisterByCreateSet
//
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
/// \ingroup RegisterGroup
/// Must be specialized be the user
////////////////////////////////////////////////////////////////////////////////
template<class t> bool RegisterFunction();
////////////////////////////////////////////////////////////////////////////////
/// \ingroup RegisterGroup
/// Must be specialized be the user
////////////////////////////////////////////////////////////////////////////////
template<class t> bool UnRegisterFunction();
namespace Private
{
template<class T>
struct RegisterOnCreate
{
RegisterOnCreate() { RegisterFunction<T>(); }
};
template<class T>
struct UnRegisterOnDelete
{
~UnRegisterOnDelete() { UnRegisterFunction<T>(); }
};
template<class T>
struct RegisterOnCreateElement
{
RegisterOnCreate<T> registerObj;
};
template<class T>
struct UnRegisterOnDeleteElement
{
UnRegisterOnDelete<T> unregisterObj;
};
}
////////////////////////////////////////////////////////////////////////////////
/// \class RegisterOnCreateSet
///
/// \ingroup RegisterGroup
/// Implements a generic register class which registers classes of a typelist
///
/// \par Usage
/// see test/Register
////////////////////////////////////////////////////////////////////////////////
template<typename ElementList>
struct RegisterOnCreateSet
: GenScatterHierarchy<ElementList, Private::RegisterOnCreateElement>
{};
////////////////////////////////////////////////////////////////////////////////
/// \class UnRegisterOnDeleteSet
///
/// \ingroup RegisterGroup
/// Implements a generic register class which unregisters classes of a typelist
///
/// \par Usage
/// see test/Register
////////////////////////////////////////////////////////////////////////////////
template<typename ElementList>
struct UnRegisterOnDeleteSet
: GenScatterHierarchy<ElementList, Private::UnRegisterOnDeleteElement>
{};
////////////////////////////////////////////////////////////////////////////////
/// \def LOKI_CHECK_CLASS_IN_LIST( CLASS , LIST )
///
/// \ingroup RegisterGroup
/// Check if CLASS is in the typelist LIST.
///
/// \par Usage
/// see test/Register
////////////////////////////////////////////////////////////////////////////////
#define LOKI_CONCATE(a,b,c,d) a ## b ## c ## d
#define LOKI_CONCAT(a,b,c,d) LOKI_CONCATE(a,b,c,d)
#define LOKI_CHECK_CLASS_IN_LIST( CLASS , LIST ) \
\
struct LOKI_CONCAT(check_,CLASS,_isInList_,LIST) \
{ \
typedef int LOKI_CONCAT(ERROR_class_,CLASS,_isNotInList_,LIST); \
}; \
typedef Loki::Select<Loki::TL::IndexOf<LIST, CLASS>::value == -1, \
CLASS, \
LOKI_CONCAT(check_,CLASS,_isInList_,LIST)> \
::Result LOKI_CONCAT(CLASS,isInList,LIST,result); \
typedef LOKI_CONCAT(CLASS,isInList,LIST,result):: \
LOKI_CONCAT(ERROR_class_,CLASS,_isNotInList_,LIST) \
LOKI_CONCAT(ERROR_class_,CLASS,_isNotInList__,LIST);
} // namespace Loki
#endif // end file guardian
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