metaparse/v1/foldr_reject_incomplete1.hpp

0001 #ifndef BOOST_METAPARSE_V1_FOLDR_REJECT_INCOMPLETE1_HPP
0002 #define BOOST_METAPARSE_V1_FOLDR_REJECT_INCOMPLETE1_HPP
0003
0004 // Copyright Abel Sinkovics (abel@sinkovics.hu)  2015.
0005 // Distributed under the Boost Software License, Version 1.0.
0006 //    (See accompanying file LICENSE_1_0.txt or copy at
0007 //          http://www.boost.org/LICENSE_1_0.txt)
0008
0009 #include <boost/metaparse/v1/foldr_reject_incomplete.hpp>
0010
0011 #include <boost/mpl/if.hpp>
0012
0013 namespace boost
0014 {
0015   namespace metaparse
0016   {
0017     namespace v1
0018     {
0019       template <class P, class State, class BackwardOp>
0020       struct foldr_reject_incomplete1
0021       {
0022         typedef foldr_reject_incomplete1 type;
0023
0024         template <class S, class Pos>
0025         struct apply :
0026           boost::mpl::if_<
0027             is_error<typename P::template apply<S, Pos> >,
0028             P,
0029             foldr_reject_incomplete<P, State, BackwardOp>
0030           >::type::template apply<S, Pos>
0031         {};
0032       };
0033     }
0034   }
0035 }
0036
0037 #endif
0038