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#if !defined(BOOST_PROTO_DONT_USE_PREPROCESSED_FILES)
#include <boost/proto/context/detail/preprocessed/default_eval.hpp>
#elif !defined(BOOST_PP_IS_ITERATING)
#define BOOST_PROTO_DEFAULT_EVAL_SHIFTED(Z, M, DATA) \
BOOST_PROTO_DEFAULT_EVAL(Z, BOOST_PP_ADD(M, 2), DATA) \
/**/
#if defined(__WAVE__) && defined(BOOST_PROTO_CREATE_PREPROCESSED_FILES)
#pragma wave option(preserve: 2, line: 0, output: "preprocessed/default_eval.hpp")
#endif
///////////////////////////////////////////////////////////////////////////////
/// \file default_eval.hpp
/// Contains specializations of the default_eval\<\> class template.
//
// Copyright 2008 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)
#if defined(__WAVE__) && defined(BOOST_PROTO_CREATE_PREPROCESSED_FILES)
#pragma wave option(preserve: 1)
#endif
#define BOOST_PP_ITERATION_PARAMS_1 \
(3, (3, BOOST_PROTO_MAX_ARITY, <boost/proto/context/detail/default_eval.hpp>))
#include BOOST_PP_ITERATE()
#if defined(__WAVE__) && defined(BOOST_PROTO_CREATE_PREPROCESSED_FILES)
#pragma wave option(output: null)
#endif
#undef BOOST_PROTO_DEFAULT_EVAL_SHIFTED
#else
#define N BOOST_PP_ITERATION()
template<typename Expr, typename Context>
struct default_eval<Expr, Context, proto::tag::function, N>
{
typedef
typename proto::detail::result_of_fixup<
BOOST_PROTO_DEFAULT_EVAL_TYPE(~, 0, Expr)
>::type
function_type;
typedef
typename BOOST_PROTO_RESULT_OF<
function_type(BOOST_PP_ENUM_SHIFTED(N, BOOST_PROTO_DEFAULT_EVAL_TYPE, Expr))
>::type
result_type;
result_type operator ()(Expr &expr, Context &context) const
{
return this->invoke(expr, context, is_member_function_pointer<function_type>());
}
private:
result_type invoke(Expr &expr, Context &context, mpl::false_) const
{
return BOOST_PROTO_DEFAULT_EVAL(~, 0, expr)(
BOOST_PP_ENUM_SHIFTED(N, BOOST_PROTO_DEFAULT_EVAL, expr)
);
}
result_type invoke(Expr &expr, Context &context, mpl::true_) const
{
BOOST_PROTO_USE_GET_POINTER();
typedef typename detail::class_member_traits<function_type>::class_type class_type;
return (
BOOST_PROTO_GET_POINTER(class_type, (BOOST_PROTO_DEFAULT_EVAL(~, 1, expr))) ->*
BOOST_PROTO_DEFAULT_EVAL(~, 0, expr)
)(BOOST_PP_ENUM(BOOST_PP_SUB(N, 2), BOOST_PROTO_DEFAULT_EVAL_SHIFTED, expr));
}
};
#undef N
#endif
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Swift