00001 // Copyright (C) 2009 Laboratoire de Recherche et Développement 00002 // de l'Epita (LRDE). 00003 // 00004 // This file is part of Spot, a model checking library. 00005 // 00006 // Spot is free software; you can redistribute it and/or modify it 00007 // under the terms of the GNU General Public License as published by 00008 // the Free Software Foundation; either version 2 of the License, or 00009 // (at your option) any later version. 00010 // 00011 // Spot is distributed in the hope that it will be useful, but WITHOUT 00012 // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 00013 // or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public 00014 // License for more details. 00015 // 00016 // You should have received a copy of the GNU General Public License 00017 // along with Spot; see the file COPYING. If not, write to the Free 00018 // Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 00019 // 02111-1307, USA. 00020 00023 #ifndef SPOT_LTLAST_FORMULA_TREE_HH 00024 # define SPOT_LTLAST_FORMULA_TREE_HH 00025 00026 # include <vector> 00027 # include <boost/shared_ptr.hpp> 00028 # include "formula.hh" 00029 # include "multop.hh" 00030 # include "binop.hh" 00031 # include "unop.hh" 00032 # include "nfa.hh" 00033 00034 namespace spot 00035 { 00036 namespace ltl 00037 { 00039 namespace formula_tree 00040 { 00041 struct node 00042 { 00043 virtual ~node() {}; 00044 }; 00046 typedef boost::shared_ptr<node> node_ptr; 00047 00048 struct node_unop : node 00049 { 00050 unop::type op; 00051 node_ptr child; 00052 }; 00053 struct node_binop : node 00054 { 00055 binop::type op; 00056 node_ptr lhs; 00057 node_ptr rhs; 00058 }; 00059 struct node_multop : node 00060 { 00061 multop::type op; 00062 node_ptr lhs; 00063 node_ptr rhs; 00064 }; 00065 struct node_nfa : node 00066 { 00067 std::vector<node_ptr> children; 00068 spot::ltl::nfa::ptr nfa; 00069 }; 00071 enum { True = -1, False = -2 }; 00072 struct node_atomic : node 00073 { 00074 int i; 00075 }; 00076 00079 formula* instanciate(const node_ptr np, const std::vector<formula*>& v); 00080 00082 size_t arity(const node_ptr np); 00083 } 00084 } 00085 } 00086 00087 #endif // SPOT_LTLAST_FORMULA_TREE_HH_