/*============================================================================= | |
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_LAZY_NOVEMBER_04_2008_1157AM) | |
#define BOOST_SPIRIT_LAZY_NOVEMBER_04_2008_1157AM | |
#if defined(_MSC_VER) | |
#pragma once | |
#endif | |
#include <boost/proto/proto.hpp> | |
#include <boost/spirit/home/phoenix/core/actor.hpp> | |
#include <boost/spirit/home/support/modify.hpp> | |
namespace boost { namespace spirit | |
{ | |
template <typename Eval> | |
typename proto::terminal<phoenix::actor<Eval> >::type | |
lazy(phoenix::actor<Eval> const& f) | |
{ | |
return proto::terminal<phoenix::actor<Eval> >::type::make(f); | |
} | |
namespace tag | |
{ | |
struct lazy_eval {}; | |
} | |
template <typename Domain> | |
struct is_modifier_directive<Domain, tag::lazy_eval> | |
: mpl::true_ {}; | |
}} | |
#endif |