forked from boostorg/fusion
adapt template classes/structs
[SVN r59846]
This commit is contained in:
Christopher Schmidt
@ -1,156 +1,28 @@
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/*=============================================================================
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Copyright (c) 2001-2009 Joel de Guzman
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Copyright (c) 2009-2010 Hartmut Kaiser
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Copyright (c) 2010 Christopher Schmidt
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Distributed under the Boost Software License, Version 1.0. (See accompanying
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file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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==============================================================================*/
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#if !defined(BOOST_FUSION_ADAPT_CLASS_NAMED_JAN_27_2010_0614PM)
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#define BOOST_FUSION_ADAPT_CLASS_NAMED_JAN_27_2010_0614PM
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#include <boost/fusion/support/tag_of_fwd.hpp>
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#include <boost/fusion/adapted/class/extension.hpp>
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#include <boost/fusion/adapted/class/class_iterator.hpp>
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#include <boost/fusion/adapted/class/detail/is_view_impl.hpp>
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#include <boost/fusion/adapted/class/detail/is_sequence_impl.hpp>
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#include <boost/fusion/adapted/class/detail/category_of_impl.hpp>
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#include <boost/fusion/adapted/class/detail/begin_impl.hpp>
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#include <boost/fusion/adapted/class/detail/end_impl.hpp>
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#include <boost/fusion/adapted/class/detail/size_impl.hpp>
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#include <boost/fusion/adapted/class/detail/at_impl.hpp>
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#include <boost/fusion/adapted/class/detail/value_at_impl.hpp>
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#ifndef BOOST_FUSION_ADAPTED_CLASS_ADAPT_CLASS_NAMED_HPP
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#define BOOST_FUSION_ADAPTED_CLASS_ADAPT_CLASS_NAMED_HPP
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#include <boost/preprocessor/cat.hpp>
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#include <boost/preprocessor/punctuation/comma_if.hpp>
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#include <boost/preprocessor/seq/for_each.hpp>
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#include <boost/preprocessor/seq/for_each_i.hpp>
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#include <boost/preprocessor/tuple/elem.hpp>
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#include <boost/preprocessor/repetition/enum_params_with_a_default.hpp>
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#include <boost/preprocessor/repetition/enum_params.hpp>
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#include <boost/preprocessor/cat.hpp>
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#include <boost/mpl/int.hpp>
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#include <boost/config/no_tr1/utility.hpp>
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#include <boost/type_traits/add_reference.hpp>
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#include <boost/type_traits/add_const.hpp>
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#include <boost/type_traits/remove_reference.hpp>
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#include <boost/type_traits/remove_const.hpp>
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#include <boost/fusion/adapted/class/adapt_class.hpp>
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#include <boost/fusion/adapted/struct/detail/proxy_type.hpp>
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#define BOOST_FUSION_ADAPT_CLASS_NAMED(name, newname, bseq) \
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BOOST_FUSION_ADAPT_CLASS_NAMED_I(name, (boost)(fusion)(adapted), newname, \
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BOOST_PP_CAT(BOOST_FUSION_ADAPT_CLASS_NAMED_X bseq, 0)) \
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/***/
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#define BOOST_FUSION_ADAPT_CLASS_NAMED_NS( \
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WRAPPED_TYPE, NAMESPACE_SEQ, NAME, ATTRIBUTES) \
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\
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BOOST_FUSION_ADAPT_STRUCT_DEFINE_PROXY_TYPE( \
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WRAPPED_TYPE,(0)NAMESPACE_SEQ,NAME) \
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\
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BOOST_FUSION_ADAPT_CLASS( \
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BOOST_FUSION_ADAPT_STRUCT_NAMESPACE_DECLARATION((0)NAMESPACE_SEQ)NAME, \
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ATTRIBUTES)
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#define BOOST_FUSION_ADAPT_CLASS_NAMED_NS(name, ns, newname, bseq) \
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BOOST_FUSION_ADAPT_CLASS_NAMED_I(name, ns, newname, \
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BOOST_PP_CAT(BOOST_FUSION_ADAPT_CLASS_NAMED_X bseq, 0)) \
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/***/
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#define BOOST_FUSION_ADAPT_CLASS_NAMED_X(w, x, y, z) ((w, x, y, z)) BOOST_FUSION_ADAPT_CLASS_NAMED_Y
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#define BOOST_FUSION_ADAPT_CLASS_NAMED_Y(w, x, y, z) ((w, x, y, z)) BOOST_FUSION_ADAPT_CLASS_NAMED_X
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#define BOOST_FUSION_ADAPT_CLASS_NAMED_X0
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#define BOOST_FUSION_ADAPT_CLASS_NAMED_Y0
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// BOOST_FUSION_ADAPT_CLASS_I generates the overarching structure and uses
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// SEQ_FOR_EACH_I to generate the "linear" substructures.
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// Thanks to Paul Mensonides for the PP macro help
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#define BOOST_FUSION_ADAPT_CLASS_NAMED_I(name, ns, newname, seq) \
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BOOST_PP_SEQ_FOR_EACH_R(1, BOOST_FUSION_ADAPT_CLASS_NAMED_NS_B, _, ns) \
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struct newname \
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{ \
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newname(name& s) : obj(s) {} \
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name& obj; \
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}; \
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BOOST_PP_SEQ_FOR_EACH_R(1, BOOST_FUSION_ADAPT_CLASS_NAMED_NS_E, _, ns) \
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\
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namespace boost { namespace fusion { namespace traits \
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{ \
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template <> \
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struct tag_of<BOOST_FUSION_ADAPT_CLASS_NAMED_NAME(ns, newname)> \
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{ \
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typedef class_tag type; \
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}; \
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}}} \
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\
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namespace boost { namespace mpl \
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{ \
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template<typename> \
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struct sequence_tag; \
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\
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template<> \
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struct sequence_tag<BOOST_FUSION_ADAPT_CLASS_NAMED_NAME(ns, newname)> \
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{ \
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typedef fusion::fusion_sequence_tag type; \
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}; \
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\
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template<> \
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struct sequence_tag<BOOST_FUSION_ADAPT_CLASS_NAMED_NAME(ns, newname) const> \
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{ \
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typedef fusion::fusion_sequence_tag type; \
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}; \
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}} \
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\
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namespace boost { namespace fusion { namespace extension \
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{ \
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template <> \
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struct class_size<BOOST_FUSION_ADAPT_CLASS_NAMED_NAME(ns, newname)> \
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: mpl::int_<BOOST_PP_SEQ_SIZE(seq)> {}; \
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template <typename T, int N> struct class_member_proxy; \
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BOOST_PP_SEQ_FOR_EACH_I(BOOST_FUSION_ADAPT_CLASS_NAMED_C, \
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BOOST_FUSION_ADAPT_CLASS_NAMED_NAME(ns, newname),seq) \
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}}} \
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/***/
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#define BOOST_FUSION_ADAPT_CLASS_NAMED_NAME(ns, newname) \
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BOOST_PP_SEQ_FOR_EACH_R(1, BOOST_FUSION_ADAPT_CLASS_NAMED_NS_D, _, ns) \
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newname \
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/***/
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#define BOOST_FUSION_ADAPT_CLASS_NAMED_NS_B(r, _, ns) namespace ns {
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#define BOOST_FUSION_ADAPT_CLASS_NAMED_NS_D(r, _, ns) ns::
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#define BOOST_FUSION_ADAPT_CLASS_NAMED_NS_E(r, _, ns) }
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#define BOOST_FUSION_ADAPT_CLASS_NAMED_C(r, fullname, i, xy) \
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template <> \
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struct class_member_proxy<fullname, i> \
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{ \
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typedef BOOST_PP_TUPLE_ELEM(4, 0, xy) lvalue; \
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typedef BOOST_PP_TUPLE_ELEM(4, 1, xy) rvalue; \
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typedef remove_const<remove_reference<lvalue>::type>::type type; \
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typedef add_reference<add_const<type>::type>::type cref_type; \
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\
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class_member_proxy(fullname& obj) : obj(obj) {} \
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fullname& obj; \
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\
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class_member_proxy& operator=(cref_type val) \
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{ \
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BOOST_PP_TUPLE_ELEM(4, 3, xy); \
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return *this; \
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} \
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\
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operator lvalue() \
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{ \
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return BOOST_PP_TUPLE_ELEM(4, 2, xy); \
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} \
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}; \
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\
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template <> \
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struct class_member<fullname, i> \
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{ \
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typedef class_member_proxy<fullname, i> proxy; \
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typedef proxy::type type; \
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typedef proxy::rvalue get_type; \
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\
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static get_type call(fullname const& obj) \
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{ \
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return BOOST_PP_TUPLE_ELEM(4, 2, xy); \
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} \
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\
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static proxy call(fullname& obj) \
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{ \
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return proxy(obj); \
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} \
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}; \
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/***/
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#define BOOST_FUSION_ADAPT_CLASS_NAMED(WRAPPED_TYPE, NAME, ATTRIBUTES) \
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BOOST_FUSION_ADAPT_CLASS_NAMED_NS( \
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WRAPPED_TYPE,(boost)(fusion)(adapted),NAME,ATTRIBUTES)
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#endif
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