00001 // Copyright (C) 2003, 2004 Laboratoire d'Informatique de Paris 6 (LIP6), 00002 // département Systèmes Répartis Coopératifs (SRC), Université Pierre 00003 // et Marie Curie. 00004 // 00005 // This file is part of Spot, a model checking library. 00006 // 00007 // Spot is free software; you can redistribute it and/or modify it 00008 // under the terms of the GNU General Public License as published by 00009 // the Free Software Foundation; either version 2 of the License, or 00010 // (at your option) any later version. 00011 // 00012 // Spot is distributed in the hope that it will be useful, but WITHOUT 00013 // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 00014 // or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public 00015 // License for more details. 00016 // 00017 // You should have received a copy of the GNU General Public License 00018 // along with Spot; see the file COPYING. If not, write to the Free 00019 // Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 00020 // 02111-1307, USA. 00021 00024 #ifndef SPOT_LTLAST_UNOP_HH 00025 # define SPOT_LTLAST_UNOP_HH 00026 00027 #include <map> 00028 #include "refformula.hh" 00029 00030 namespace spot 00031 { 00032 namespace ltl 00033 { 00034 00037 class unop : public ref_formula 00038 { 00039 public: 00040 enum type { Not, X, F, G }; 00041 00044 static unop* instance(type op, formula* child); 00045 00046 virtual void accept(visitor& v); 00047 virtual void accept(const_visitor& v) const; 00048 00050 const formula* child() const; 00052 formula* child(); 00053 00055 type op() const; 00057 const char* op_name() const; 00058 00060 static unsigned instance_count(); 00061 00062 protected: 00063 typedef std::pair<type, formula*> pair; 00064 typedef std::map<pair, formula*> map; 00065 static map instances; 00066 00067 unop(type op, formula* child); 00068 virtual ~unop(); 00069 00070 private: 00071 type op_; 00072 formula* child_; 00073 }; 00074 00075 } 00076 } 00077 00078 #endif // SPOT_LTLAST_UNOP_HH