ceph/src/boost/boost/metaparse/v1/source_position_tag.hpp

   1 #ifndef BOOST_METAPARSE_V1_SOURCE_POSITION_TAG_HPP
   2 #define BOOST_METAPARSE_V1_SOURCE_POSITION_TAG_HPP
   3
   4 //    Copyright Abel Sinkovics (abel@sinkovics.hu) 2013.
   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 #include <boost/metaparse/v1/fwd/source_position.hpp>
  10 #include <boost/metaparse/v1/fwd/get_prev_char.hpp>
  11 #include <boost/metaparse/v1/fwd/next_line.hpp>
  12 #include <boost/metaparse/v1/fwd/next_char.hpp>
  13 #include <boost/metaparse/v1/get_col.hpp>
  14 #include <boost/metaparse/v1/get_line.hpp>
  15
  16
  17 #include <boost/mpl/int.hpp>
  18
  19 namespace boost
  20 {
  21   namespace metaparse
  22   {
  23     namespace v1
  24     {
  25       struct source_position_tag { typedef source_position_tag type; };
  26
  27       template <>
  28       struct get_col_impl<source_position_tag>
  29       {
  30         template <class P>
  31         struct apply : P::col {};
  32       };
  33
  34       template <>
  35       struct get_line_impl<source_position_tag>
  36       {
  37         template <class P>
  38         struct apply : P::line {};
  39       };
  40
  41
  42       template <>
  43       struct get_prev_char_impl<source_position_tag>
  44       {
  45         template <class P>
  46         struct apply : P::prev_char {};
  47       };
  48
  49
  50       template <>
  51       struct next_char_impl<source_position_tag>
  52       {
  53         template <class P, class Ch>
  54         struct apply :
  55           source_position<
  56             typename get_line<P>::type,
  57             boost::mpl::int_<get_col<P>::type::value + 1>,
  58             Ch
  59           >
  60         {};
  61       };
  62
  63       template <>
  64       struct next_line_impl<source_position_tag>
  65       {
  66         template <class P, class Ch>
  67         struct apply :
  68           source_position<
  69             boost::mpl::int_<get_line<P>::type::value + 1>,
  70             boost::mpl::int_<1>,
  71             Ch
  72           >
  73         {};
  74       };
  75     }
  76   }
  77 }
  78
  79 #endif
  80