| // Copyright (c) 2001-2010 Hartmut Kaiser |
| // Copyright (c) 2001-2010 Joel de Guzman |
| // |
| // 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_LEX_REFERENCE_APR_20_2009_0827AM) |
| #define BOOST_SPIRIT_LEX_REFERENCE_APR_20_2009_0827AM |
| |
| #if defined(_MSC_VER) |
| #pragma once |
| #endif |
| |
| #include <boost/spirit/home/lex/meta_compiler.hpp> |
| #include <boost/spirit/home/lex/lexer_type.hpp> |
| #include <boost/spirit/home/qi/reference.hpp> |
| #include <boost/spirit/home/support/info.hpp> |
| #include <boost/ref.hpp> |
| |
| namespace boost { namespace spirit { namespace lex |
| { |
| /////////////////////////////////////////////////////////////////////////// |
| // reference is a lexer that references another lexer (its Subject) |
| // all lexer components are at the same time |
| /////////////////////////////////////////////////////////////////////////// |
| template <typename Subject, typename IdType = unused_type> |
| struct reference; |
| |
| template <typename Subject> |
| struct reference<Subject, unused_type> |
| : qi::reference<Subject> |
| , lexer_type<reference<Subject> > |
| { |
| reference(Subject& subject) |
| : qi::reference<Subject>(subject) {} |
| |
| template <typename LexerDef, typename String> |
| void collect(LexerDef& lexdef, String const& state) const |
| { |
| this->ref.get().collect(lexdef, state); |
| } |
| |
| template <typename LexerDef> |
| void add_actions(LexerDef& lexdef) const |
| { |
| this->ref.get().add_actions(lexdef); |
| } |
| }; |
| |
| template <typename Subject, typename IdType> |
| struct reference : reference<Subject> |
| { |
| reference(Subject& subject) |
| : reference<Subject>(subject) {} |
| |
| IdType id() const |
| { |
| return this->ref.get().id(); |
| } |
| std::size_t unique_id() const |
| { |
| return this->ref.get().unique_id(); |
| } |
| std::size_t state() const |
| { |
| return this->ref.get().state(); |
| } |
| }; |
| |
| }}} |
| |
| #endif |