boost/xpressive/detail/static/transforms/as_sequence.hpp
///////////////////////////////////////////////////////////////////////////////
// as_sequence.hpp
//
// Copyright 2007 Eric Niebler. 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)
#ifndef BOOST_XPRESSIVE_DETAIL_STATIC_TRANSFORMS_AS_SEQUENCE_HPP_EAN_04_01_2007
#define BOOST_XPRESSIVE_DETAIL_STATIC_TRANSFORMS_AS_SEQUENCE_HPP_EAN_04_01_2007
// MS compatible compilers support #pragma once
#if defined(_MSC_VER) && (_MSC_VER >= 1020)
# pragma once
#endif
#include <boost/mpl/assert.hpp>
#include <boost/type_traits/is_same.hpp>
#include <boost/xpressive/detail/detail_fwd.hpp>
#include <boost/xpressive/detail/static/static.hpp>
namespace boost { namespace xpressive { namespace detail
{
template<typename Grammar>
struct in_sequence
: Grammar
{
in_sequence();
template<typename Expr, typename State, typename Visitor>
struct apply
{
typedef static_xpression<
typename Grammar::template apply<Expr, State, Visitor>::type
, State
> type;
};
template<typename Expr, typename State, typename Visitor>
static typename apply<Expr, State, Visitor>::type
call(Expr const &expr, State const &state, Visitor &visitor)
{
return typename apply<Expr, State, Visitor>::type(
Grammar::call(expr, state, visitor)
, state
);
}
};
}}}
#endif