Chris@16: //  Copyright (c) 2001-2011 Hartmut Kaiser
Chris@16: //  Copyright (c) 2001-2011 Joel de Guzman
Chris@16: // 
Chris@16: //  Distributed under the Boost Software License, Version 1.0. (See accompanying 
Chris@16: //  file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
Chris@16: 
Chris@16: #if !defined(BOOST_SPIRIT_LEX_REFERENCE_APR_20_2009_0827AM)
Chris@16: #define BOOST_SPIRIT_LEX_REFERENCE_APR_20_2009_0827AM
Chris@16: 
Chris@16: #if defined(_MSC_VER)
Chris@16: #pragma once
Chris@16: #endif
Chris@16: 
Chris@16: #include <boost/spirit/home/lex/meta_compiler.hpp>
Chris@16: #include <boost/spirit/home/lex/lexer_type.hpp>
Chris@16: #include <boost/spirit/home/qi/reference.hpp>
Chris@16: #include <boost/spirit/home/support/info.hpp>
Chris@16: #include <boost/spirit/home/support/handles_container.hpp>
Chris@16: #include <boost/ref.hpp>
Chris@16: 
Chris@16: namespace boost { namespace spirit { namespace lex
Chris@16: {
Chris@16:     ///////////////////////////////////////////////////////////////////////////
Chris@16:     // reference is a lexer that references another lexer (its Subject)
Chris@16:     // all lexer components are at the same time
Chris@16:     ///////////////////////////////////////////////////////////////////////////
Chris@16:     template <typename Subject, typename IdType = unused_type>
Chris@16:     struct reference; 
Chris@16: 
Chris@16:     template <typename Subject>
Chris@16:     struct reference<Subject, unused_type>
Chris@16:       : qi::reference<Subject>
Chris@16:       , lexer_type<reference<Subject> >
Chris@16:     {
Chris@16:         reference(Subject& subject)
Chris@16:           : qi::reference<Subject>(subject) {}
Chris@16: 
Chris@16:         template <typename LexerDef, typename String>
Chris@16:         void collect(LexerDef& lexdef, String const& state
Chris@16:           , String const& targetstate) const
Chris@16:         {
Chris@16:             this->ref.get().collect(lexdef, state, targetstate);
Chris@16:         }
Chris@16: 
Chris@16:         template <typename LexerDef>
Chris@16:         void add_actions(LexerDef& lexdef) const 
Chris@16:         {
Chris@16:             this->ref.get().add_actions(lexdef);
Chris@16:         }
Chris@16:     };
Chris@16: 
Chris@16:     template <typename Subject, typename IdType>
Chris@16:     struct reference : reference<Subject>
Chris@16:     {
Chris@16:         reference(Subject& subject)
Chris@16:           : reference<Subject>(subject) {}
Chris@16: 
Chris@16:         IdType id() const 
Chris@16:         { 
Chris@16:             return this->ref.get().id(); 
Chris@16:         }
Chris@16:         std::size_t unique_id() const 
Chris@16:         { 
Chris@16:             return this->ref.get().unique_id(); 
Chris@16:         }
Chris@16:         std::size_t state() const 
Chris@16:         { 
Chris@16:             return this->ref.get().state(); 
Chris@16:         }
Chris@16:     };
Chris@16: }}}
Chris@16: 
Chris@16: namespace boost { namespace spirit { namespace traits
Chris@16: {
Chris@16:     ///////////////////////////////////////////////////////////////////////////
Chris@16:     template <typename Subject, typename IdType
Chris@16:       , typename Attribute, typename Context, typename Iterator>
Chris@16:     struct handles_container<lex::reference<Subject, IdType>
Chris@16:           , Attribute, Context, Iterator>
Chris@16:       : handles_container<
Chris@16:             typename remove_const<Subject>::type, Attribute, Context, Iterator> 
Chris@16:     {};
Chris@16: }}}
Chris@16: 
Chris@16: #endif