| /*============================================================================= |
| Copyright (c) 2001-2010 Joel de Guzman |
| Copyright (c) 2009 Francois Barel |
| |
| Distributed under the Boost Software License, Version 1.0. (See accompanying |
| file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
| ==============================================================================*/ |
| #if !defined(BOOST_SPIRIT_PARAMETERIZED_AUGUST_09_2009_0539AM) |
| #define BOOST_SPIRIT_PARAMETERIZED_AUGUST_09_2009_0539AM |
| |
| #if defined(_MSC_VER) |
| #pragma once |
| #endif |
| |
| #include <boost/ref.hpp> |
| |
| #include <boost/spirit/home/qi/parser.hpp> |
| |
| namespace boost { namespace spirit { namespace qi |
| { |
| /////////////////////////////////////////////////////////////////////////// |
| // parameterized_nonterminal: parser representing the invocation of a |
| // nonterminal, passing inherited attributes |
| /////////////////////////////////////////////////////////////////////////// |
| template <typename Subject, typename Params> |
| struct parameterized_nonterminal |
| : parser<parameterized_nonterminal<Subject, Params> > |
| { |
| parameterized_nonterminal(Subject const& subject, Params const& params) |
| : ref(subject), params(params) |
| { |
| } |
| |
| template <typename Context, typename Iterator> |
| struct attribute |
| // Forward to subject. |
| : Subject::template attribute<Context, Iterator> {}; |
| |
| template <typename Iterator, typename Context |
| , typename Skipper, typename Attribute> |
| bool parse(Iterator& first, Iterator const& last |
| , Context& context, Skipper const& skipper |
| , Attribute& attr) const |
| { |
| // Forward to subject, passing the additional |
| // params argument to parse. |
| return ref.get().parse(first, last, context, skipper, attr, params); |
| } |
| |
| template <typename Context> |
| info what(Context& context) const |
| { |
| // Forward to subject. |
| return ref.get().what(context); |
| } |
| |
| boost::reference_wrapper<Subject const> ref; |
| Params params; |
| }; |
| }}} |
| |
| #endif |