1 #ifndef BOOST_METAPARSE_V1_BUILD_PARSER_HPP
2 #define BOOST_METAPARSE_V1_BUILD_PARSER_HPP
3 
4 // Copyright Abel Sinkovics (abel@sinkovics.hu)  2009 - 2010.
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/build_parser.hpp>
10 #include <boost/metaparse/v1/start.hpp>
11 #include <boost/metaparse/v1/get_result.hpp>
12 #include <boost/metaparse/v1/get_position.hpp>
13 #include <boost/metaparse/v1/get_message.hpp>
14 #include <boost/metaparse/v1/get_line.hpp>
15 #include <boost/metaparse/v1/get_col.hpp>
16 #include <boost/metaparse/v1/is_error.hpp>
17 
18 #include <boost/mpl/eval_if.hpp>
19 
20 #include <boost/static_assert.hpp>
21 
22 namespace boost
23 {
24   namespace metaparse
25   {
26     namespace v1
27     {
28       template <int Line, int Col, class Msg>
29       struct x__________________PARSING_FAILED__________________x
30       {
31         BOOST_STATIC_ASSERT(Line == Line + 1);
32       };
33 
34       template <class P, class S>
35       struct parsing_failed :
36         x__________________PARSING_FAILED__________________x<
37           get_line<
38             get_position<typename P::template apply<S, start> >
39           >::type::value,
40           get_col<
41             get_position<typename P::template apply<S, start> >
42           >::type::value,
43           typename get_message<typename P::template apply<S, start> >::type
44         >
45       {};
46 
47       template <class P>
48       struct build_parser
49       {
50         typedef build_parser type;
51 
52         template <class S>
53         struct apply :
54           boost::mpl::eval_if<
55             typename is_error<typename P::template apply<S, start> >::type,
56             parsing_failed<P, S>,
57             get_result<typename P::template apply<S, start> >
58           >
59         {};
60       };
61     }
62   }
63 }
64 
65 #endif
66 
67