is_untyped.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_DETAIL_IS_UNTYPED_H
#define MCRL2_DATA_DETAIL_IS_UNTYPED_H
 
#include "mcrl2/data/traverser.h"
 
namespace mcrl2 {
 
namespace data {
 
namespace detail {
 
struct is_untyped_traverser: public sort_expression_traverser<is_untyped_traverser>
{
  typedef sort_expression_traverser<is_untyped_traverser> super;
  using super::enter;
  using super::leave;
  using super::apply;
 
  bool result;
 
  is_untyped_traverser()
    : result(false)
  {}
 
  void apply(const data::untyped_identifier& )
  {
    result = true;
  }
 
  void apply(const data::untyped_identifier_assignment& )
  {
    result = true;
  }
 
  void apply(const data::untyped_sort& )
  {
    result = true;
  }
 
  void apply(const data::untyped_possible_sorts& )
  {
    result = true;
  }
 
  void apply(const data::untyped_set_or_bag_comprehension& )
  {
    result = true;
  }
 
  void apply(const data::structured_sort_constructor_argument& )
  {
    result = true;
  }
 
  void apply(const data::structured_sort_constructor& )
  {
    result = true;
  }
};
 
inline
bool is_untyped(const data_expression& x)
{
  is_untyped_traverser f;
  f.apply(x);
  return f.result;
}
 
} // namespace detail
 
} // namespace data
 
} // namespace mcrl2
 
#endif // MCRL2_DATA_DETAIL_IS_UNTYPED_H