1/*=============================================================================
2 Copyright (c) 2001-2011 Joel de Guzman
3 Copyright (c) 2009 Francois Barel
4
5 Distributed under the Boost Software License, Version 1.0. (See accompanying
6 file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
7==============================================================================*/
8#if !defined(BOOST_SPIRIT_PARAMETERIZED_AUGUST_09_2009_0539AM)
9#define BOOST_SPIRIT_PARAMETERIZED_AUGUST_09_2009_0539AM
10
11#if defined(_MSC_VER)
12#pragma once
13#endif
14
15#include <boost/ref.hpp>
16
17#include <boost/spirit/home/support/handles_container.hpp>
18#include <boost/spirit/home/qi/parser.hpp>
19
20namespace boost { namespace spirit { namespace qi
21{
22 ///////////////////////////////////////////////////////////////////////////
23 // parameterized_nonterminal: parser representing the invocation of a
24 // nonterminal, passing inherited attributes
25 ///////////////////////////////////////////////////////////////////////////
26 template <typename Subject, typename Params>
27 struct parameterized_nonterminal
28 : parser<parameterized_nonterminal<Subject, Params> >
29 {
30 parameterized_nonterminal(Subject const& subject, Params const& params_)
31 : ref(subject), params(params_)
32 {
33 }
34
35 template <typename Context, typename Iterator>
36 struct attribute
37 // Forward to subject.
38 : Subject::template attribute<Context, Iterator> {};
39
40 template <typename Iterator, typename Context
41 , typename Skipper, typename Attribute>
42 bool parse(Iterator& first, Iterator const& last
43 , Context& context, Skipper const& skipper
44 , Attribute& attr_) const
45 {
46 // Forward to subject, passing the additional
47 // params argument to parse.
48 return ref.get().parse(first, last, context, skipper, attr_, params);
49 }
50
51 template <typename Context>
52 info what(Context& context) const
53 {
54 // Forward to subject.
55 return ref.get().what(context);
56 }
57
58 boost::reference_wrapper<Subject const> ref;
59 Params params;
60 };
61}}}
62
63namespace boost { namespace spirit { namespace traits
64{
65 ///////////////////////////////////////////////////////////////////////////
66 template <typename Subject, typename Params, typename Attribute
67 , typename Context, typename Iterator>
68 struct handles_container<qi::parameterized_nonterminal<Subject, Params>
69 , Attribute, Context, Iterator>
70 : handles_container<typename remove_const<Subject>::type
71 , Attribute, Context, Iterator>
72 {};
73}}}
74
75#endif
76

source code of boost/libs/spirit/include/boost/spirit/home/qi/nonterminal/detail/parameterized.hpp