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ltlast/atomic_prop.hh

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00001 // Copyright (C) 2003  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 
00022 #ifndef SPOT_LTLAST_ATOMIC_PROP_HH
00023 # define SPOT_LTLAST_ATOMIC_PROP_HH
00024 
00025 #include <string>
00026 #include <map>
00027 #include "refformula.hh"
00028 #include "ltlenv/environment.hh"
00029 
00030 namespace spot
00031 {
00032   namespace ltl
00033   {
00034 
00036     class atomic_prop : public ref_formula
00037     {
00038     public:
00041       static atomic_prop* instance(const std::string& name, environment& env);
00042 
00043       virtual void accept(visitor& visitor);
00044       virtual void accept(const_visitor& visitor) const;
00045 
00047       const std::string& name() const;
00049       environment& env() const;
00050 
00052       static unsigned instance_count();
00053 
00054     protected:
00055       atomic_prop(const std::string& name, environment& env);
00056       virtual ~atomic_prop();
00057 
00058       typedef std::pair<std::string, environment*> pair;
00059       typedef std::map<pair, atomic_prop*> map;
00060       static map instances;
00061 
00062     private:
00063       std::string name_;
00064       environment* env_;
00065     };
00066 
00067   }
00068 }
00069 
00070 #endif // SPOT_LTLAST_ATOMICPROP_HH

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