boost/spirit/home/classic/attribute/closure_context.hpp
/*=============================================================================
Copyright (c) 2002-2003 Joel de Guzman
Copyright (c) 2002-2003 Hartmut Kaiser
http://spirit.sourceforge.net/
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_CLOSURE_CONTEXT_HPP)
#define BOOST_SPIRIT_CLOSURE_CONTEXT_HPP
#include <boost/spirit/home/classic/namespace.hpp>
///////////////////////////////////////////////////////////////////////////////
namespace boost { namespace spirit {
BOOST_SPIRIT_CLASSIC_NAMESPACE_BEGIN
#if !defined(BOOST_SPIRIT_CLOSURE_CONTEXT_LINKER_DEFINED)
#define BOOST_SPIRIT_CLOSURE_CONTEXT_LINKER_DEFINED
///////////////////////////////////////////////////////////////////////////////
//
// closure_context_linker
// { helper template for the closure extendability }
//
// This classes can be 'overloaded' (defined elsewhere), to plug
// in additional functionality into the closure parsing process.
//
///////////////////////////////////////////////////////////////////////////////
template<typename ContextT>
struct closure_context_linker : public ContextT
{
template <typename ParserT>
closure_context_linker(ParserT const& p)
: ContextT(p) {}
template <typename ParserT, typename ScannerT>
void pre_parse(ParserT const& p, ScannerT const& scan)
{ ContextT::pre_parse(p, scan); }
template <typename ResultT, typename ParserT, typename ScannerT>
ResultT&
post_parse(ResultT& hit, ParserT const& p, ScannerT const& scan)
{ return ContextT::post_parse(hit, p, scan); }
};
#endif // !defined(BOOST_SPIRIT_CLOSURE_CONTEXT_LINKER_DEFINED)
///////////////////////////////////////////////////////////////////////////////
BOOST_SPIRIT_CLASSIC_NAMESPACE_END
}} // namespace BOOST_SPIRIT_CLASSIC_NS
#endif // BOOST_SPIRIT_CLOSURE_CONTEXT_HPP
