80 lines
3.1 KiB
C++
80 lines
3.1 KiB
C++
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#if !defined(BOOST_PROTO_DONT_USE_PREPROCESSED_FILES)
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#include <boost/proto/detail/preprocessed/deep_copy.hpp>
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#elif !defined(BOOST_PP_IS_ITERATING)
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#define BOOST_PROTO_DEFINE_DEEP_COPY_TYPE(Z, N, DATA) \
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typename deep_copy_impl< \
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typename remove_reference< \
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typename Expr::BOOST_PP_CAT(proto_child, N) \
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>::type::proto_derived_expr \
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>::result_type \
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/**/
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#define BOOST_PROTO_DEFINE_DEEP_COPY_FUN(Z, N, DATA) \
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proto::deep_copy(e.proto_base().BOOST_PP_CAT(child, N)) \
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/**/
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#if defined(__WAVE__) && defined(BOOST_PROTO_CREATE_PREPROCESSED_FILES)
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#pragma wave option(preserve: 2, line: 0, output: "preprocessed/deep_copy.hpp")
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#endif
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///////////////////////////////////////////////////////////////////////////////
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/// \file deep_copy.hpp
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/// Replace all nodes stored by reference by nodes stored by value.
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//
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// Copyright 2008 Eric Niebler. Distributed under the Boost
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// Software License, Version 1.0. (See accompanying file
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// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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#if defined(__WAVE__) && defined(BOOST_PROTO_CREATE_PREPROCESSED_FILES)
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#pragma wave option(preserve: 1)
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#endif
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#define BOOST_PP_ITERATION_PARAMS_1 \
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(3, (1, BOOST_PROTO_MAX_ARITY, <boost/proto/detail/deep_copy.hpp>))
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#include BOOST_PP_ITERATE()
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#if defined(__WAVE__) && defined(BOOST_PROTO_CREATE_PREPROCESSED_FILES)
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#pragma wave option(output: null)
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#endif
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#undef BOOST_PROTO_DEFINE_DEEP_COPY_FUN
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#undef BOOST_PROTO_DEFINE_DEEP_COPY_TYPE
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#else
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#define N BOOST_PP_ITERATION()
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template<typename Expr>
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struct deep_copy_impl<Expr, N>
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{
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typedef
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typename base_expr<
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typename Expr::proto_domain
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, typename Expr::proto_tag
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, BOOST_PP_CAT(list, N)<
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BOOST_PP_ENUM(N, BOOST_PROTO_DEFINE_DEEP_COPY_TYPE, ~)
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>
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>::type
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expr_type;
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typedef typename Expr::proto_generator proto_generator;
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typedef typename proto_generator::template result<proto_generator(expr_type)>::type result_type;
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template<typename Expr2, typename S, typename D>
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result_type operator()(Expr2 const &e, S const &, D const &) const
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{
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expr_type const that = {
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BOOST_PP_ENUM(N, BOOST_PROTO_DEFINE_DEEP_COPY_FUN, ~)
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};
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return proto_generator()(that);
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}
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};
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#undef N
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#endif
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