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// Copyright (C) 2009, 2010 Laboratoire de Recherche et Dveloppement
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// de l'Epita (LRDE).
// Copyright (C) 2003, 2004 Laboratoire d'Informatique de Paris 6 (LIP6),
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// dpartement Systmes Rpartis Coopratifs (SRC), Universit Pierre
// et Marie Curie.
//
// This file is part of Spot, a model checking library.
//
// Spot is free software; you can redistribute it and/or modify it
// under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// Spot is distributed in the hope that it will be useful, but WITHOUT
// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
// or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
// License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Spot; see the file COPYING.  If not, write to the Free
// Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
// 02111-1307, USA.

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#ifndef SPOT_LTLVISIT_CLONE_HH
# define SPOT_LTLVISIT_CLONE_HH

#include "ltlast/formula.hh"
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#include "ltlast/visitor.hh"
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namespace spot
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{
  namespace ltl
  {
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    /// \brief Clone a formula.
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    /// \ingroup ltl_visitor
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    ///
    /// This visitor is public, because it's convenient
    /// to derive from it and override part of its methods.
    /// But if you just want the functionality, consider using
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    /// spot::ltl::formula::clone instead, it is way faster.
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    class clone_visitor : public visitor
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    {
    public:
      clone_visitor();
      virtual ~clone_visitor();

      formula* result() const;
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      void visit(atomic_prop* ap);
      void visit(unop* uo);
      void visit(binop* bo);
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      void visit(automatop* mo);
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      void visit(multop* mo);
      void visit(constant* c);
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      void visit(bunop* c);
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      virtual formula* recurse(formula* f);

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    protected:
      formula* result_;
    };

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#if __GNUC__
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    /// \brief Clone a formula.
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    /// \ingroup ltl_essential
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    /// \deprecated Use f->clone() instead.
    formula* clone(const formula* f) __attribute__ ((deprecated));
#else
    /// \brief Clone a formula.
    /// \ingroup ltl_essential
    /// \deprecated Use f->clone() instead.
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    formula* clone(const formula* f);
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#endif
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  }
}

#endif // SPOT_LTLVISIT_LUNABBREV_HH