1 #ifndef BOOST_METAPARSE_V1_TRANSFORM_ERROR_MESSAGE_HPP
2 #define BOOST_METAPARSE_V1_TRANSFORM_ERROR_MESSAGE_HPP
4 // Copyright Abel Sinkovics (abel@sinkovics.hu) 2015.
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)
9 #include <boost/metaparse/v1/is_error.hpp>
10 #include <boost/metaparse/v1/reject.hpp>
11 #include <boost/metaparse/v1/get_position.hpp>
12 #include <boost/metaparse/v1/get_message.hpp>
14 #include <boost/mpl/eval_if.hpp>
22 template <class P, class F>
23 struct transform_error_message
28 typename F::template apply<typename get_message<R>::type>::type,
33 template <class S, class Pos>
36 typename is_error<typename P::template apply<S, Pos> >::type,
37 rejection<typename P::template apply<S, Pos> >,
38 typename P::template apply<S, Pos>
42 typedef transform_error_message type;