Line data    Source code

       1             : // Author(s): Wieger Wesselink
       2             : // Copyright: see the accompanying file COPYING or copy at
       3             : // https://github.com/mCRL2org/mCRL2/blob/master/COPYING
       4             : //
       5             : // Distributed under the Boost Software License, Version 1.0.
       6             : // (See accompanying file LICENSE_1_0.txt or copy at
       7             : // http://www.boost.org/LICENSE_1_0.txt)
       8             : //
       9             : /// \file mcrl2/modal_formula/is_timed.h
      10             : /// \brief add your file description here.
      11             : 
      12             : #ifndef MCRL2_MODAL_FORMULA_IS_TIMED_H
      13             : #define MCRL2_MODAL_FORMULA_IS_TIMED_H
      14             : 
      15             : #include "mcrl2/modal_formula/traverser.h"
      16             : 
      17             : namespace mcrl2 {
      18             : 
      19             : namespace state_formulas {
      20             : 
      21             : namespace detail {
      22             : 
      23             : /// \brief Function that determines if a state formula is time dependent
      24             : // \brief Visitor for checking if a state formula is timed.
      25             : struct is_timed_traverser: public state_formula_traverser<is_timed_traverser>
      26             : {
      27             :   typedef state_formula_traverser<is_timed_traverser> super;
      28             :   using super::enter;
      29             :   using super::leave;
      30             :   using super::apply;
      31             : 
      32             :   bool result;
      33             : 
      34         143 :   is_timed_traverser()
      35         143 :     : result(false)
      36         143 :   {}
      37             : 
      38           4 :   void enter(const delay_timed& /* x */)
      39             :   {
      40           4 :     result = true;
      41           4 :   }
      42             : 
      43           4 :   void enter(const yaled_timed& /* x */)
      44             :   {
      45           4 :     result = true;
      46           4 :   }
      47             : 
      48             :   void enter(const action_formulas::at& /* x */)
      49             :   {
      50             :     result = true;
      51             :   }
      52             : };
      53             : 
      54             : } // namespace detail
      55             : 
      56             : /// \brief Checks if a state formula is timed
      57             : /// \param x A state formula
      58             : /// \return True if a state formula is timed
      59             : inline
      60         143 : bool is_timed(const state_formula& x)
      61             : {
      62         143 :   detail::is_timed_traverser f;
      63         143 :   f.apply(x);
      64         143 :   return f.result;
      65             : }
      66             : 
      67             : } // namespace state_formulas
      68             : 
      69             : } // namespace mcrl2
      70             : 
      71             : #endif // MCRL2_MODAL_FORMULA_IS_TIMED_H