Claw
1.7.0
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00001 /* 00002 CLAW - a C++ Library Absolutely Wonderful 00003 00004 CLAW is a free library without any particular aim but being useful to 00005 anyone. 00006 00007 Copyright (C) 2005-2011 Julien Jorge 00008 00009 This library is free software; you can redistribute it and/or 00010 modify it under the terms of the GNU Lesser General Public 00011 License as published by the Free Software Foundation; either 00012 version 2.1 of the License, or (at your option) any later version. 00013 00014 This library is distributed in the hope that it will be useful, 00015 but WITHOUT ANY WARRANTY; without even the implied warranty of 00016 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00017 Lesser General Public License for more details. 00018 00019 You should have received a copy of the GNU Lesser General Public 00020 License along with this library; if not, write to the Free Software 00021 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 00022 00023 contact: julien.jorge@gamned.org 00024 */ 00031 namespace claw 00032 { 00038 template<typename Type> 00039 class multi_type_map_visitor_process 00040 { 00041 public: 00042 template<typename Key, typename TailType, typename Function> 00043 void execute 00044 ( multi_type_map< Key, claw::meta::type_list<Type, TailType> >& m, 00045 Function f ) 00046 { 00047 typedef claw::meta::type_list<Type, TailType> type_list_type; 00048 typedef multi_type_map<Key, type_list_type> map_type; 00049 typedef typename map_type::template iterator<Type>::type iterator_type; 00050 00051 iterator_type it( m.template begin<Type>() ); 00052 const iterator_type eit( m.template end<Type>() ); 00053 00054 while ( it!=eit ) 00055 { 00056 iterator_type current(it); 00057 ++it; 00058 f(current->first, current->second); 00059 } 00060 } // execute() 00061 00062 }; // class multi_type_map_visitor_process 00063 00069 template<typename Key, typename TypeList> 00070 class multi_type_map_visitor_rec; 00071 00076 template<typename Key> 00077 class multi_type_map_visitor_rec<Key, claw::meta::no_type> 00078 { 00079 public: 00080 template<typename Function> 00081 void execute( multi_type_map<Key, claw::meta::no_type>& vars, Function f ) 00082 { 00083 // nothing to do. 00084 } // execute() 00085 00086 }; // class multi_type_map_visitor 00087 00093 template<typename KeyType, typename HeadType, typename TailType> 00094 class multi_type_map_visitor_rec 00095 < KeyType, claw::meta::type_list<HeadType, TailType> > 00096 { 00097 public: 00098 template<typename Function> 00099 void execute 00100 ( multi_type_map< KeyType, claw::meta::type_list<HeadType, TailType> >& m, 00101 Function f ) 00102 { 00103 multi_type_map_visitor_process<HeadType> process; 00104 multi_type_map_visitor_rec<KeyType, TailType> rec_call; 00105 00106 process.execute( m, f ); 00107 rec_call.execute( m, f ); 00108 } // execute() 00109 00110 }; // class multi_type_map_visitor_rec 00111 00112 } // namespce claw 00113 00114 /*----------------------------------------------------------------------------*/ 00120 template<typename Key, typename TypeList, typename Function> 00121 void claw::multi_type_map_visitor::run 00122 ( multi_type_map<Key, TypeList>& m, Function f ) const 00123 { 00124 multi_type_map_visitor_rec<Key, TypeList> rec_call; 00125 rec_call.execute( m, f ); 00126 } // multi_type_map_visitor::run()