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/pbes/replace_constants_by_variables.h
      10             : /// \brief add your file description here.
      11             : 
      12             : #ifndef MCRL2_PBES_REPLACE_CONSTANTS_BY_VARIABLES_H
      13             : #define MCRL2_PBES_REPLACE_CONSTANTS_BY_VARIABLES_H
      14             : 
      15             : #include "mcrl2/data/replace_constants_by_variables.h"
      16             : #include "mcrl2/pbes/builder.h"
      17             : 
      18             : namespace mcrl2 {
      19             : 
      20             : namespace pbes_system {
      21             : 
      22             : namespace detail {
      23             : 
      24             : struct replace_constants_by_variables_builder: public data::detail::replace_constants_by_variables_builder<pbes_system::data_expression_builder>
      25             : {
      26             :   typedef data::detail::replace_constants_by_variables_builder<pbes_system::data_expression_builder> super;
      27             :   using super::apply;
      28             :   using super::update;
      29             : 
      30           0 :   replace_constants_by_variables_builder(const data::rewriter& r, data::mutable_indexed_substitution<>& sigma)
      31           0 :     : super(r, sigma)
      32           0 :   {}
      33             : };
      34             : 
      35             : } // namespace detail
      36             : 
      37             : /// \brief Replace each constant data application c in x by a fresh variable v, and add extend the substitution sigma
      38             : /// with the assignment v := r(c). This can be used in rewriting, to avoid that c is rewritten by the rewriter
      39             : /// multiple times.
      40             : template <typename T>
      41           0 : void replace_constants_by_variables(T& x,
      42             :                                     const data::rewriter& r,
      43             :                                     data::mutable_indexed_substitution<>& sigma,
      44             :                                     typename std::enable_if<!std::is_base_of<atermpp::aterm, T>::value>::type* = nullptr
      45             :                                    )
      46             : {
      47           0 :   detail::replace_constants_by_variables_builder f(r, sigma);
      48           0 :   f.update(x);
      49           0 : }
      50             : 
      51             : /// \brief Replace each constant data application c in x by a fresh variable v, and add extend the substitution sigma
      52             : /// with the assignment v := r(c). This can be used in rewriting, to avoid that c is rewritten by the rewriter
      53             : /// multiple times.
      54             : template <typename T>
      55             : T replace_constants_by_variables(const T& x,
      56             :                                  const data::rewriter& r,
      57             :                                  data::mutable_indexed_substitution<>& sigma,
      58             :                                  typename std::enable_if<std::is_base_of<atermpp::aterm, T>::value>::type* = nullptr
      59             :                                 )
      60             : {
      61             :   T result;
      62             :   detail::replace_constants_by_variables_builder f(r, sigma);
      63             :   f.apply(result, x);
      64             :   return result;
      65             : }
      66             : 
      67             : } // namespace pbes_system
      68             : 
      69             : } // namespace mcrl2
      70             : 
      71             : #endif // MCRL2_PBES_REPLACE_CONSTANTS_BY_VARIABLES_H