// Copyright Eric Niebler 2005.
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// Distributed under the Boost Software License, Version 1.0.
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// (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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#ifndef BOOST_PARAMETER_NESTED_KEYWORD_HPP
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#define BOOST_PARAMETER_NESTED_KEYWORD_HPP
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#include <boost/parameter/aux_/name.hpp>
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#include <boost/parameter/keyword.hpp>
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#include <boost/parameter/config.hpp>
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#include <boost/preprocessor/cat.hpp>
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#include <boost/preprocessor/stringize.hpp>
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#if defined(BOOST_PARAMETER_CAN_USE_MP11)
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#define BOOST_PARAMETER_NESTED_KEYWORD_AUX(tag_namespace, q, name, alias) \
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namespace tag_namespace \
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{ \
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template <int Dummy = 0> \
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struct BOOST_PP_CAT(name, _) \
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{ \
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static BOOST_CONSTEXPR char const* keyword_name() \
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{ \
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return BOOST_PP_STRINGIZE(name); \
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} \
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using _ = BOOST_PARAMETER_TAG_PLACEHOLDER_TYPE( \
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BOOST_PP_CAT(name, _)<Dummy> \
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); \
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using _1 = BOOST_PARAMETER_TAG_PLACEHOLDER_TYPE( \
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BOOST_PP_CAT(name, _)<Dummy> \
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); \
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BOOST_PARAMETER_TAG_MP11_PLACEHOLDER_BINDING( \
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binding_fn \
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, BOOST_PP_CAT(name, _)<Dummy> \
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); \
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BOOST_PARAMETER_TAG_MP11_PLACEHOLDER_VALUE( \
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fn \
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, BOOST_PP_CAT(name, _)<Dummy> \
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); \
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using qualifier = ::boost::parameter::q; \
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static ::boost::parameter::keyword< \
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BOOST_PP_CAT(name, _)<Dummy> \
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> const& alias; \
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}; \
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template <int Dummy> \
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::boost::parameter::keyword< \
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BOOST_PP_CAT(name, _)<Dummy> \
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> const& BOOST_PP_CAT(name, _)<Dummy>::alias \
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= ::boost::parameter::keyword< \
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BOOST_PP_CAT(name, _)<Dummy> \
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>::instance; \
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typedef BOOST_PP_CAT(name, _)<> name; \
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} \
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namespace \
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{ \
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::boost::parameter::keyword<tag_namespace::name> const& name \
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= ::boost::parameter::keyword<tag_namespace::name>::instance; \
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}
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/**/
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#else // !defined(BOOST_PARAMETER_CAN_USE_MP11)
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#define BOOST_PARAMETER_NESTED_KEYWORD_AUX(tag_namespace, q, name, alias) \
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namespace tag_namespace \
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{ \
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template <int Dummy = 0> \
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struct BOOST_PP_CAT(name, _) \
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{ \
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static BOOST_CONSTEXPR char const* keyword_name() \
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{ \
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return BOOST_PP_STRINGIZE(name); \
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} \
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typedef BOOST_PARAMETER_TAG_PLACEHOLDER_TYPE( \
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BOOST_PP_CAT(name, _)<Dummy> \
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) _; \
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typedef BOOST_PARAMETER_TAG_PLACEHOLDER_TYPE( \
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BOOST_PP_CAT(name, _)<Dummy> \
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) _1; \
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typedef ::boost::parameter::q qualifier; \
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static ::boost::parameter::keyword< \
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BOOST_PP_CAT(name, _)<Dummy> \
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> const& alias; \
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}; \
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template <int Dummy> \
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::boost::parameter::keyword< \
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BOOST_PP_CAT(name, _)<Dummy> \
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> const& BOOST_PP_CAT(name, _)<Dummy>::alias \
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= ::boost::parameter::keyword< \
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BOOST_PP_CAT(name, _)<Dummy> \
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>::instance; \
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typedef BOOST_PP_CAT(name, _)<> name; \
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} \
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namespace \
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{ \
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::boost::parameter::keyword<tag_namespace::name> const& name \
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= ::boost::parameter::keyword<tag_namespace::name>::instance; \
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}
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/**/
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#endif // BOOST_PARAMETER_CAN_USE_MP11
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#include <boost/parameter/aux_/preprocessor/qualifier.hpp>
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#define BOOST_PARAMETER_NESTED_KEYWORD(tag_namespace, name, alias) \
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BOOST_PARAMETER_NESTED_KEYWORD_AUX( \
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tag_namespace \
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, BOOST_PARAMETER_GET_QUALIFIER(name) \
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, BOOST_PARAMETER_UNQUALIFIED(name) \
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, alias \
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)
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/**/
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#endif // include guard
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