// Copyright (c) 2001-2011 Hartmut Kaiser | |
// Copyright (c) 2001-2011 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/spirit/home/support/handles_container.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 | |
, String const& targetstate) const | |
{ | |
this->ref.get().collect(lexdef, state, targetstate); | |
} | |
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(); | |
} | |
}; | |
}}} | |
namespace boost { namespace spirit { namespace traits | |
{ | |
/////////////////////////////////////////////////////////////////////////// | |
template <typename Subject, typename IdType | |
, typename Attribute, typename Context, typename Iterator> | |
struct handles_container<lex::reference<Subject, IdType> | |
, Attribute, Context, Iterator> | |
: handles_container< | |
typename remove_const<Subject>::type, Attribute, Context, Iterator> | |
{}; | |
}}} | |
#endif |