00001 // slots.hh: this file is part of the Vaucanson project. 00002 // 00003 // Vaucanson, a generic library for finite state machines. 00004 // 00005 // Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006 The Vaucanson Group. 00006 // 00007 // This program is free software; you can redistribute it and/or 00008 // modify it under the terms of the GNU General Public License 00009 // as published by the Free Software Foundation; either version 2 00010 // of the License, or (at your option) any later version. 00011 // 00012 // The complete GNU General Public Licence Notice can be found as the 00013 // `COPYING' file in the root directory. 00014 // 00015 // The Vaucanson Group consists of people listed in the `AUTHORS' file. 00016 // 00017 #ifndef VCSN_DESIGN_PATTERN_SLOTS_HH 00018 # define VCSN_DESIGN_PATTERN_SLOTS_HH 00019 00028 # include <vaucanson/design_pattern/predecls.hh> 00029 00030 namespace vcsn { 00031 00034 /*------------------------------. 00035 | Basic class for SetSlot below | 00036 `------------------------------*/ 00037 00059 template<typename S, bool dynamic /* default: false */> 00060 struct SetSlotAttribute 00061 { 00063 00064 SetSlotAttribute(); 00065 SetSlotAttribute(const SetSlotAttribute& other); 00066 SetSlotAttribute(const S& other); 00068 00078 const S& _structure_get() const; 00079 00088 00090 void _structure_assign(const SetSlotAttribute& other); 00091 00093 void _structure_attach(const S& other); 00095 00101 bool _structure_bound() const; 00102 }; 00103 00114 template<typename S> 00115 struct SetSlotAttribute<S, true> 00116 { 00118 SetSlotAttribute(); 00119 00126 SetSlotAttribute(const SetSlotAttribute& other); 00127 00141 SetSlotAttribute(const S& other); 00142 00144 const S& _structure_get() const; 00145 00147 00153 void _structure_assign(const SetSlotAttribute& other); 00154 void _structure_attach(const S& s); 00156 00160 bool _structure_bound() const; 00161 00162 protected: 00163 const S* s_; 00164 }; 00165 00166 00167 /*------------------------------------. 00168 | Set attribute for the Element class | 00169 `------------------------------------*/ 00170 00191 template<typename S, typename Tag> 00192 struct SetSlot : SetSlotAttribute<S, dynamic_traits<S>::ret> 00193 { 00194 typedef Tag tag_type; 00195 00197 00201 SetSlot(); 00202 SetSlot(const SetSlot& other); 00203 SetSlot(const S& other); 00205 }; 00206 00209 } 00210 00211 # if !defined VCSN_USE_INTERFACE_ONLY || defined VCSN_USE_LIB 00212 # include <vaucanson/design_pattern/slots.hxx> 00213 # endif // VCSN_USE_INTERFACE_ONLY 00214 00215 #endif // ! VCSN_DESIGN_PATTERN_SLOTS_HH
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