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formula_tree.hh
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1 // -*- coding: utf-8 -*-
2 // Copyright (C) 2009, 2012, 2013, 2014 Laboratoire de Recherche et
3 // Développement de l'Epita (LRDE).
4 //
5 // This file is part of Spot, a model checking library.
6 //
7 // Spot is free software; you can redistribute it and/or modify it
8 // under the terms of the GNU General Public License as published by
9 // the Free Software Foundation; either version 3 of the License, or
10 // (at your option) any later version.
11 //
12 // Spot is distributed in the hope that it will be useful, but WITHOUT
13 // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
14 // or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
15 // License for more details.
16 //
17 // You should have received a copy of the GNU General Public License
18 // along with this program. If not, see <http://www.gnu.org/licenses/>.
19 
22 #ifndef SPOT_LTLAST_FORMULA_TREE_HH
23 # define SPOT_LTLAST_FORMULA_TREE_HH
24 
25 # include "formula.hh"
26 # include <vector>
27 # include <boost/shared_ptr.hpp>
28 # include "multop.hh"
29 # include "binop.hh"
30 # include "unop.hh"
31 # include "nfa.hh"
32 
33 namespace spot
34 {
35  namespace ltl
36  {
38  namespace formula_tree
39  {
40  // These struct should not need to be made public using
41  // SPOT_API, unfortunately dynamic_cast<> with g++-4.0.1 fails
42  // on Darwin if we do not.
43  struct SPOT_API node
44  {
45  virtual ~node() {};
46  };
48  typedef boost::shared_ptr<node> node_ptr;
49 
50  struct SPOT_API node_unop : node
51  {
52  unop::type op;
53  node_ptr child;
54  };
55  struct SPOT_API node_binop : node
56  {
57  binop::type op;
58  node_ptr lhs;
59  node_ptr rhs;
60  };
61  struct SPOT_API node_multop : node
62  {
63  multop::type op;
64  node_ptr lhs;
65  node_ptr rhs;
66  };
67  struct SPOT_API node_nfa : node
68  {
69  std::vector<node_ptr> children;
70  spot::ltl::nfa::ptr nfa;
71  };
73  enum { True = -1, False = -2 };
74  struct SPOT_API node_atomic : node
75  {
76  int i;
77  };
78 
81  const formula* instanciate(const node_ptr np,
82  const std::vector<const formula*>& v);
83 
85  size_t arity(const node_ptr np);
86  }
87  }
88 }
89 
90 #endif // SPOT_LTLAST_FORMULA_TREE_HH_

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