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#if !defined(BOOST_PHOENIX_DONT_USE_PREPROCESSED_FILES)
#ifndef BOOST_PHOENIX_CORE_DETAIL_FUNCTION_EVAL_HPP
#define BOOST_PHOENIX_CORE_DETAIL_FUNCTION_EVAL_HPP
#include <boost/phoenix/core/limits.hpp>
#include <boost/phoenix/support/iterate.hpp>
#include <boost/phoenix/core/call.hpp>
#include <boost/phoenix/core/expression.hpp>
#include <boost/phoenix/core/meta_grammar.hpp>
#include <boost/phoenix/core/detail/phx2_result.hpp>
#include <boost/utility/result_of.hpp>
#include <boost/phoenix/core/detail/preprocessed/function_eval.hpp>
#endif
#else
#if !BOOST_PHOENIX_IS_ITERATING
#ifndef BOOST_PHOENIX_CORE_DETAIL_FUNCTION_EVAL_HPP
#define BOOST_PHOENIX_CORE_DETAIL_FUNCTION_EVAL_HPP
#include <boost/phoenix/core/limits.hpp>
#include <boost/phoenix/support/iterate.hpp>
#include <boost/phoenix/core/call.hpp>
#include <boost/phoenix/core/expression.hpp>
#include <boost/phoenix/core/meta_grammar.hpp>
#include <boost/phoenix/core/detail/phx2_result.hpp>
#include <boost/utility/result_of.hpp>
#if defined(__WAVE__) && defined(BOOST_PHOENIX_CREATE_PREPROCESSED_FILES)
#pragma wave option(preserve: 2, line: 0, output: "preprocessed/function_eval_" BOOST_PHOENIX_LIMIT_STR ".hpp")
#endif
/*=============================================================================
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)
==============================================================================*/
#if defined(__WAVE__) && defined(BOOST_PHOENIX_CREATE_PREPROCESSED_FILES)
#pragma wave option(preserve: 1)
#endif
BOOST_PHOENIX_DEFINE_EXPRESSION_VARARG(
(boost)(phoenix)(detail)(function_eval)
, (meta_grammar)
(meta_grammar)
, BOOST_PP_DEC(BOOST_PHOENIX_COMPOSITE_LIMIT)
)
namespace boost { namespace phoenix {
namespace detail
{
template <typename T>
T& help_rvalue_deduction(T& x)
{
return x;
}
template <typename T>
T const& help_rvalue_deduction(T const& x)
{
return x;
}
struct function_eval
{
template <typename Sig>
struct result;
template <typename This, typename F, typename Context>
struct result<This(F, Context)>
{
typedef typename
remove_reference<
typename boost::result_of<evaluator(F, Context)>::type
>::type
fn;
typedef typename boost::result_of<fn()>::type type;
};
template <typename F, typename Context>
typename result<function_eval(F const&, Context const&)>::type
operator()(F const & f, Context const & ctx) const
{
return boost::phoenix::eval(f, ctx)();
}
template <typename F, typename Context>
typename result<function_eval(F &, Context const&)>::type
operator()(F & f, Context const & ctx) const
{
return boost::phoenix::eval(f, ctx)();
}
#define PHOENIX_GET_ARG(z, n, data) \
typedef \
typename boost::add_reference< \
typename boost::add_const< \
typename boost::result_of< \
boost::phoenix::evaluator( \
BOOST_PP_CAT(A, n) \
, Context \
) \
>::type \
>::type \
>::type \
BOOST_PP_CAT(a, n);
#define PHOENIX_EVAL_ARG(z, n, data) \
help_rvalue_deduction(boost::phoenix::eval(BOOST_PP_CAT(a, n), ctx))
#define M0(z, n, data) \
typename proto::detail::uncvref<BOOST_PP_CAT(a, n)>::type
#define BOOST_PHOENIX_ITERATION_PARAMS \
(3, (1, BOOST_PP_DEC(BOOST_PHOENIX_ACTOR_LIMIT), \
<boost/phoenix/core/detail/function_eval.hpp>))
#include BOOST_PHOENIX_ITERATE()
#undef PHOENIX_GET_ARG
#undef PHOENIX_EVAL_ARG
#undef M0
};
}
template <typename Dummy>
struct default_actions::when<detail::rule::function_eval, Dummy>
: phoenix::call<detail::function_eval>
{};
}}
#if defined(__WAVE__) && defined(BOOST_PHOENIX_CREATE_PREPROCESSED_FILES)
#pragma wave option(output: null)
#endif
#endif
#else
template <
typename This
, typename F
, BOOST_PHOENIX_typename_A
, typename Context
>
struct result<This(F, BOOST_PHOENIX_A, Context)>
{
typedef typename
remove_reference<
typename boost::result_of<evaluator(F, Context)>::type
>::type
fn;
BOOST_PP_REPEAT(BOOST_PHOENIX_ITERATION, PHOENIX_GET_ARG, _)
typedef typename
boost::result_of<fn(BOOST_PHOENIX_a)>::type
type;
/*
typedef typename
mpl::eval_if_c<
has_phx2_result<
fn
, BOOST_PP_ENUM(BOOST_PHOENIX_ITERATION, M0, _)
>::value
, boost::result_of<
fn(
BOOST_PHOENIX_a
)
>
, phx2_result<
fn
, BOOST_PHOENIX_a
>
>::type
type;
*/
};
template <typename F, BOOST_PHOENIX_typename_A, typename Context>
typename result<
function_eval(
F const &
, BOOST_PHOENIX_A_ref
, Context const &
)
>::type
operator()(F const & f, BOOST_PHOENIX_A_ref_a, Context const & ctx) const
{
return boost::phoenix::eval(f, ctx)(BOOST_PP_ENUM(BOOST_PHOENIX_ITERATION, PHOENIX_EVAL_ARG, _));
}
template <typename F, BOOST_PHOENIX_typename_A, typename Context>
typename result<
function_eval(
F &
, BOOST_PHOENIX_A_ref
, Context const &
)
>::type
operator()(F & f, BOOST_PHOENIX_A_ref_a, Context const & ctx) const
{
return boost::phoenix::eval(f, ctx)(BOOST_PP_ENUM(BOOST_PHOENIX_ITERATION, PHOENIX_EVAL_ARG, _));
}
#endif
#endif
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Swift