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#if !defined(BOOST_PROTO_DONT_USE_PREPROCESSED_FILES)
#include <boost/proto/detail/preprocessed/deep_copy.hpp>
#elif !defined(BOOST_PP_IS_ITERATING)
#define BOOST_PROTO_DEFINE_DEEP_COPY_TYPE(Z, N, DATA) \
typename deep_copy_impl< \
typename remove_reference< \
typename Expr::BOOST_PP_CAT(proto_child, N) \
>::type::proto_derived_expr \
>::result_type \
/**/
#define BOOST_PROTO_DEFINE_DEEP_COPY_FUN(Z, N, DATA) \
proto::deep_copy(e.proto_base().BOOST_PP_CAT(child, N)) \
/**/
#if defined(__WAVE__) && defined(BOOST_PROTO_CREATE_PREPROCESSED_FILES)
#pragma wave option(preserve: 2, line: 0, output: "preprocessed/deep_copy.hpp")
#endif
///////////////////////////////////////////////////////////////////////////////
/// \file deep_copy.hpp
/// Replace all nodes stored by reference by nodes stored by value.
//
// 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, (1, BOOST_PROTO_MAX_ARITY, <boost/proto/detail/deep_copy.hpp>))
#include BOOST_PP_ITERATE()
#if defined(__WAVE__) && defined(BOOST_PROTO_CREATE_PREPROCESSED_FILES)
#pragma wave option(output: null)
#endif
#undef BOOST_PROTO_DEFINE_DEEP_COPY_FUN
#undef BOOST_PROTO_DEFINE_DEEP_COPY_TYPE
#else
#define N BOOST_PP_ITERATION()
template<typename Expr>
struct deep_copy_impl<Expr, N>
{
typedef
typename base_expr<
typename Expr::proto_domain
, typename Expr::proto_tag
, BOOST_PP_CAT(list, N)<
BOOST_PP_ENUM(N, BOOST_PROTO_DEFINE_DEEP_COPY_TYPE, ~)
>
>::type
expr_type;
typedef typename Expr::proto_generator proto_generator;
typedef typename proto_generator::template result<proto_generator(expr_type)>::type result_type;
template<typename Expr2, typename S, typename D>
result_type operator()(Expr2 const &e, S const &, D const &) const
{
expr_type const that = {
BOOST_PP_ENUM(N, BOOST_PROTO_DEFINE_DEEP_COPY_FUN, ~)
};
return proto_generator()(that);
}
};
#undef N
#endif
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Swift