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/*=============================================================================
Copyright (c) 2001-2007 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)
==============================================================================*/
#ifndef PHOENIX_OPERATOR_DETAIL_UNARY_EVAL_HPP
#define PHOENIX_OPERATOR_DETAIL_UNARY_EVAL_HPP
#include <boost/mpl/eval_if.hpp>
#include <boost/spirit/home/phoenix/core/compose.hpp>
#define PHOENIX_UNARY_EVAL(eval_name, op_result, expr) \
struct eval_name \
{ \
template <typename Env, typename A0> \
struct result \
{ \
typedef typename A0::template result<Env>::type x_type; \
\
typedef typename \
mpl::eval_if< \
is_actor<x_type> \
, re_curry<eval_name, x_type> \
, op_result<x_type> \
>::type \
type; \
}; \
\
template <typename RT, typename Env, typename A0> \
static RT \
eval(Env const& env, A0& a0) \
{ \
return expr; \
} \
};
#endif
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