rewrite.h

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// Author(s): Wieger Wesselink
// Copyright: see the accompanying file COPYING or copy at
// https://github.com/mCRL2org/mCRL2/blob/master/COPYING
//
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
//
 
#ifndef MCRL2_DATA_REWRITE_H
#define MCRL2_DATA_REWRITE_H
 
#include "mcrl2/data/builder.h"
 
namespace mcrl2 {
 
namespace data {
 
namespace detail
{
 
template <template <class> class Builder, class Rewriter>
struct rewrite_data_expressions_builder: public Builder<rewrite_data_expressions_builder<Builder, Rewriter> >
{
  typedef Builder<rewrite_data_expressions_builder<Builder, Rewriter> > super;
  using super::enter;
  using super::leave;
  using super::apply;
  using super::update;
 
  Rewriter R;
 
  rewrite_data_expressions_builder(Rewriter R_)
    : R(R_)
  {}
 
  template <class T>
  void apply(T& result, const data_expression& x)
  {
    result = R(x);
  }
};
 
template <template <class> class Builder, class Rewriter>
rewrite_data_expressions_builder<Builder, Rewriter>
make_rewrite_data_expressions_builder(Rewriter R)
{
  return rewrite_data_expressions_builder<Builder, Rewriter>(R);
}
 
template <template <class> class Builder, class Rewriter, class Substitution>
struct rewrite_data_expressions_with_substitution_builder: public Builder<rewrite_data_expressions_with_substitution_builder<Builder, Rewriter, Substitution> >
{
  typedef Builder<rewrite_data_expressions_with_substitution_builder<Builder, Rewriter, Substitution> > super;
  using super::enter;
  using super::leave;
  using super::apply;
  using super::update;
 
  Rewriter R;
  Substitution sigma;
 
  rewrite_data_expressions_with_substitution_builder(Rewriter R_, Substitution sigma_)
    : R(R_),
      sigma(sigma_)
  {}
 
  template <class T>
  void apply(T& result, const data_expression& x)
  {
    result = R(x, sigma);
  }
};
 
template <template <class> class Builder, class Rewriter, class Substitution>
rewrite_data_expressions_with_substitution_builder<Builder, Rewriter, Substitution>
make_rewrite_data_expressions_with_substitution_builder(Rewriter R, Substitution sigma)
{
  return rewrite_data_expressions_with_substitution_builder<Builder, Rewriter, Substitution>(R, sigma);
}
 
} // namespace detail
 
//--- start generated data rewrite code ---//
template <typename T, typename Rewriter>
void rewrite(T& x,
             Rewriter R,
             typename std::enable_if<!std::is_base_of<atermpp::aterm, T>::value>::type* = nullptr
            )
{
  data::detail::make_rewrite_data_expressions_builder<data::data_expression_builder>(R).update(x);
}
 
template <typename T, typename Rewriter>
T rewrite(const T& x,
          Rewriter R,
          typename std::enable_if<std::is_base_of<atermpp::aterm, T>::value>::type* = nullptr
         )
{
  T result;
  data::detail::make_rewrite_data_expressions_builder<data::data_expression_builder>(R).apply(result, x);
  return result;
}
 
template <typename T, typename Rewriter, typename Substitution>
void rewrite(T& x,
             Rewriter R,
             const Substitution& sigma,
             typename std::enable_if<!std::is_base_of<atermpp::aterm, T>::value>::type* = nullptr
            )
{
  data::detail::make_rewrite_data_expressions_with_substitution_builder<data::data_expression_builder>(R, sigma).update(x);
}
 
template <typename T, typename Rewriter, typename Substitution>
T rewrite(const T& x,
          Rewriter R,
          const Substitution& sigma,
          typename std::enable_if<std::is_base_of<atermpp::aterm, T>::value>::type* = nullptr
         )
{
  T result; 
  data::detail::make_rewrite_data_expressions_with_substitution_builder<data::data_expression_builder>(R, sigma).apply(result, x);
  return result;
}
//--- end generated data rewrite code ---//
 
} // namespace data
 
} // namespace mcrl2
 
#endif // MCRL2_DATA_REWRITE_H