90 lines
2.5 KiB
C++
90 lines
2.5 KiB
C++
// -*- coding: utf-8 -*-
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// Copyright (C) 2009, 2012, 2013, 2014 Laboratoire de Recherche et
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// Développement de l'Epita (LRDE).
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//
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// This file is part of Spot, a model checking library.
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//
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// Spot is free software; you can redistribute it and/or modify it
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// under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 3 of the License, or
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// (at your option) any later version.
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//
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// Spot is distributed in the hope that it will be useful, but WITHOUT
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// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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// or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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// License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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/// \file ltlast/formula_tree.hh
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/// \brief Trees representing formulae where atomic propositions are unknown
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#ifndef SPOT_LTLAST_FORMULA_TREE_HH
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# define SPOT_LTLAST_FORMULA_TREE_HH
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# include "formula.hh"
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# include <vector>
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# include <boost/shared_ptr.hpp>
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# include "multop.hh"
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# include "binop.hh"
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# include "unop.hh"
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# include "nfa.hh"
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namespace spot
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{
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namespace ltl
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{
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/// Trees representing formulae where atomic propositions are unknown.
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namespace formula_tree
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{
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// These struct should not need to be made public using
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// SPOT_API, unfortunately dynamic_cast<> with g++-4.0.1 fails
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// on Darwin if we do not.
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struct SPOT_API node
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{
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virtual ~node() {};
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};
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/// We use boost::shared_ptr to easily handle deletion.
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typedef boost::shared_ptr<node> node_ptr;
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struct SPOT_API node_unop : node
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{
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unop::type op;
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node_ptr child;
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};
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struct SPOT_API node_binop : node
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{
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binop::type op;
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node_ptr lhs;
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node_ptr rhs;
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};
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struct SPOT_API node_multop : node
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{
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multop::type op;
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node_ptr lhs;
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node_ptr rhs;
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};
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struct SPOT_API node_nfa : node
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{
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std::vector<node_ptr> children;
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spot::ltl::nfa::ptr nfa;
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};
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/// Integer values for True and False used in node_atomic.
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enum { True = -1, False = -2 };
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struct SPOT_API node_atomic : node
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{
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int i;
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};
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/// Instanciate the formula corresponding to the node with
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/// atomic propositions taken from \a v.
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const formula* instanciate(const node_ptr np,
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const std::vector<const formula*>& v);
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/// Get the arity.
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size_t arity(const node_ptr np);
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}
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}
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}
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#endif // SPOT_LTLAST_FORMULA_TREE_HH_
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