boost/fusion/adapted/struct/detail/adapt_base.hpp
/*=============================================================================
Copyright (c) 2001-2009 Joel de Guzman
Copyright (c) 2005-2006 Dan Marsden
Copyright (c) 2009-2011 Christopher Schmidt
Copyright (c) 2013-2014 Damien Buhl
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)
==============================================================================*/
#ifndef BOOST_FUSION_ADAPTED_STRUCT_DETAIL_ADAPT_BASE_HPP
#define BOOST_FUSION_ADAPTED_STRUCT_DETAIL_ADAPT_BASE_HPP
#include <boost/fusion/support/config.hpp>
#include <boost/config.hpp>
#include <boost/fusion/support/tag_of_fwd.hpp>
#include <boost/fusion/adapted/struct/detail/adapt_auto.hpp>
#include <boost/fusion/adapted/struct/detail/adapt_is_tpl.hpp>
#include <boost/preprocessor/empty.hpp>
#include <boost/preprocessor/stringize.hpp>
#include <boost/preprocessor/control/if.hpp>
#include <boost/preprocessor/seq/size.hpp>
#include <boost/preprocessor/seq/for_each.hpp>
#include <boost/preprocessor/seq/for_each_i.hpp>
#include <boost/preprocessor/seq/enum.hpp>
#include <boost/preprocessor/seq/seq.hpp>
#include <boost/preprocessor/tuple/eat.hpp>
#include <boost/preprocessor/tuple/elem.hpp>
#include <boost/preprocessor/arithmetic/dec.hpp>
#include <boost/preprocessor/comparison/less.hpp>
#include <boost/preprocessor/logical/not.hpp>
#include <boost/mpl/bool.hpp>
#include <boost/mpl/tag.hpp>
#include <boost/mpl/eval_if.hpp>
#include <boost/mpl/identity.hpp>
#include <boost/type_traits/add_const.hpp>
#include <boost/typeof/typeof.hpp>
#define BOOST_FUSION_ADAPT_STRUCT_UNPACK_NAME_TEMPLATE_PARAMS(SEQ) \
BOOST_PP_SEQ_HEAD(SEQ)<BOOST_PP_SEQ_ENUM(BOOST_PP_SEQ_TAIL(SEQ))> \
BOOST_PP_EMPTY()
#define BOOST_FUSION_ADAPT_STRUCT_UNPACK_NAME(SEQ) \
BOOST_PP_IF( \
BOOST_PP_SEQ_HEAD(SEQ), \
BOOST_FUSION_ADAPT_STRUCT_UNPACK_NAME_TEMPLATE_PARAMS, \
BOOST_PP_SEQ_HEAD)(BOOST_PP_SEQ_TAIL(SEQ))
#define BOOST_FUSION_ADAPT_STRUCT_UNPACK_TEMPLATE_PARAMS_IMPL_C(R, _, ELEM) \
(typename ELEM)
#define BOOST_FUSION_ADAPT_STRUCT_UNPACK_TEMPLATE_PARAMS_IMPL(SEQ) \
BOOST_PP_SEQ_ENUM( \
BOOST_PP_SEQ_FOR_EACH( \
BOOST_FUSION_ADAPT_STRUCT_UNPACK_TEMPLATE_PARAMS_IMPL_C, \
_, \
BOOST_PP_SEQ_TAIL(SEQ)))
#define BOOST_FUSION_ADAPT_STRUCT_UNPACK_TEMPLATE_PARAMS(SEQ) \
BOOST_PP_IF( \
BOOST_PP_SEQ_HEAD(SEQ), \
BOOST_FUSION_ADAPT_STRUCT_UNPACK_TEMPLATE_PARAMS_IMPL, \
BOOST_PP_TUPLE_EAT(1))(SEQ)
#ifdef BOOST_MSVC
# define BOOST_FUSION_ATTRIBUTE_TYPEOF( \
NAME_SEQ, ATTRIBUTE, ATTRIBUTE_TUPLE_SIZE, PREFIX, TEMPLATE_PARAMS_SEQ) \
\
BOOST_FUSION_ADAPT_STRUCT_MSVC_REDEFINE_TEMPLATE_PARAMS( \
TEMPLATE_PARAMS_SEQ) \
\
struct deduced_attr_type { \
static const BOOST_FUSION_ADAPT_STRUCT_UNPACK_NAME(NAME_SEQ)& obj; \
typedef \
BOOST_PP_IF(BOOST_FUSION_ADAPT_IS_TPL(TEMPLATE_PARAMS_SEQ), typename, ) \
BOOST_TYPEOF( PREFIX() obj.BOOST_PP_TUPLE_ELEM(ATTRIBUTE_TUPLE_SIZE, \
0, ATTRIBUTE)) \
type; \
}; \
\
typedef \
BOOST_PP_IF(BOOST_FUSION_ADAPT_IS_TPL(TEMPLATE_PARAMS_SEQ), typename, ) \
deduced_attr_type::type attribute_type;
#else
# define BOOST_FUSION_ATTRIBUTE_TYPEOF( \
NAME_SEQ, ATTRIBUTE, ATTRIBUTE_TUPLE_SIZE, PREFIX, TEMPLATE_PARAMS_SEQ) \
\
struct deduced_attr_type { \
static const BOOST_FUSION_ADAPT_STRUCT_UNPACK_NAME(NAME_SEQ)& obj; \
typedef BOOST_TYPEOF( \
PREFIX() obj.BOOST_PP_TUPLE_ELEM(ATTRIBUTE_TUPLE_SIZE, 0, ATTRIBUTE)) \
type; \
}; \
\
typedef \
BOOST_PP_IF(BOOST_FUSION_ADAPT_IS_TPL(TEMPLATE_PARAMS_SEQ), typename, ) \
deduced_attr_type::type attribute_type;
#endif
#define BOOST_FUSION_ATTRIBUTE_GIVENTYPE( \
NAME_SEQ, ATTRIBUTE, ATTRIBUTE_TUPLE_SIZE, PREFIX, TEMPLATE_PARAMS_SEQ) \
typedef \
BOOST_PP_TUPLE_ELEM(ATTRIBUTE_TUPLE_SIZE, 0, ATTRIBUTE) attribute_type;
#ifdef BOOST_NO_PARTIAL_SPECIALIZATION_IMPLICIT_DEFAULT_ARGS
# define BOOST_FUSION_ADAPT_STRUCT_TAG_OF_SPECIALIZATION( \
MODIFIER, TEMPLATE_PARAMS_SEQ, NAME_SEQ, TAG) \
\
template< \
BOOST_FUSION_ADAPT_STRUCT_UNPACK_TEMPLATE_PARAMS(TEMPLATE_PARAMS_SEQ) \
> \
struct tag_of< \
BOOST_FUSION_ADAPT_STRUCT_UNPACK_NAME(NAME_SEQ) MODIFIER \
, void \
> \
{ \
typedef TAG type; \
};
#else
# define BOOST_FUSION_ADAPT_STRUCT_TAG_OF_SPECIALIZATION( \
MODIFIER, TEMPLATE_PARAMS_SEQ, NAME_SEQ, TAG) \
\
template< \
BOOST_FUSION_ADAPT_STRUCT_UNPACK_TEMPLATE_PARAMS(TEMPLATE_PARAMS_SEQ) \
> \
struct tag_of<BOOST_FUSION_ADAPT_STRUCT_UNPACK_NAME(NAME_SEQ) MODIFIER> \
{ \
typedef TAG type; \
};
#endif
#define BOOST_FUSION_ADAPT_STRUCT_BASE_UNPACK_AND_CALL(R,DATA,I,ATTRIBUTE) \
BOOST_PP_TUPLE_ELEM(4,0,DATA)( \
BOOST_PP_TUPLE_ELEM(4,1,DATA), \
BOOST_PP_TUPLE_ELEM(4,2,DATA), \
BOOST_PP_TUPLE_ELEM(4,3,DATA), \
I, \
ATTRIBUTE)
#ifdef BOOST_MSVC
# define BOOST_FUSION_ADAPT_STRUCT_MSVC_REDEFINE_TEMPLATE_PARAM(R,_,ELEM) \
typedef ELEM ELEM;
# define BOOST_FUSION_ADAPT_STRUCT_MSVC_REDEFINE_TEMPLATE_PARAMS_IMPL(SEQ) \
BOOST_PP_SEQ_FOR_EACH( \
BOOST_FUSION_ADAPT_STRUCT_MSVC_REDEFINE_TEMPLATE_PARAM, \
_, \
BOOST_PP_SEQ_TAIL(SEQ))
# define BOOST_FUSION_ADAPT_STRUCT_MSVC_REDEFINE_TEMPLATE_PARAMS(SEQ) \
BOOST_PP_IF( \
BOOST_PP_SEQ_HEAD(SEQ), \
BOOST_FUSION_ADAPT_STRUCT_MSVC_REDEFINE_TEMPLATE_PARAMS_IMPL, \
BOOST_PP_TUPLE_EAT(1))(SEQ)
#else
# define BOOST_FUSION_ADAPT_STRUCT_MSVC_REDEFINE_TEMPLATE_PARAMS(SEQ)
#endif
#define BOOST_FUSION_ADAPT_STRUCT_C_BASE( \
TEMPLATE_PARAMS_SEQ,NAME_SEQ,IS_VIEW, \
I,PREFIX,ATTRIBUTE,ATTRIBUTE_TUPLE_SIZE, \
DEDUCE_TYPE) \
\
template< \
BOOST_FUSION_ADAPT_STRUCT_UNPACK_TEMPLATE_PARAMS(TEMPLATE_PARAMS_SEQ) \
> \
struct access::struct_member< \
BOOST_FUSION_ADAPT_STRUCT_UNPACK_NAME(NAME_SEQ) \
, I \
> \
{ \
BOOST_PP_IF(DEDUCE_TYPE, \
BOOST_FUSION_ATTRIBUTE_TYPEOF, BOOST_FUSION_ATTRIBUTE_GIVENTYPE)( \
NAME_SEQ, \
ATTRIBUTE, \
ATTRIBUTE_TUPLE_SIZE, \
PREFIX, \
TEMPLATE_PARAMS_SEQ) \
\
BOOST_FUSION_ADAPT_STRUCT_MSVC_REDEFINE_TEMPLATE_PARAMS( \
TEMPLATE_PARAMS_SEQ) \
\
typedef attribute_type type; \
\
template<typename Seq> \
struct apply \
{ \
typedef typename \
add_reference< \
typename mpl::eval_if< \
is_const<Seq> \
, add_const<attribute_type> \
, mpl::identity<attribute_type> \
>::type \
>::type \
type; \
\
BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED \
static type \
call(Seq& seq) \
{ \
return seq.PREFIX() \
BOOST_PP_TUPLE_ELEM(ATTRIBUTE_TUPLE_SIZE, \
BOOST_PP_NOT(DEDUCE_TYPE), ATTRIBUTE); \
} \
}; \
}; \
\
template< \
BOOST_FUSION_ADAPT_STRUCT_UNPACK_TEMPLATE_PARAMS(TEMPLATE_PARAMS_SEQ) \
> \
struct struct_member_name< \
BOOST_FUSION_ADAPT_STRUCT_UNPACK_NAME(NAME_SEQ) \
, I \
> \
{ \
typedef char const* type; \
\
BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED \
static type \
call() \
{ \
return BOOST_PP_STRINGIZE( \
BOOST_PP_TUPLE_ELEM(ATTRIBUTE_TUPLE_SIZE, \
BOOST_PP_NOT(DEDUCE_TYPE), ATTRIBUTE)); \
} \
};
#define BOOST_FUSION_ADAPT_STRUCT_BASE( \
TEMPLATE_PARAMS_SEQ, \
NAME_SEQ, \
TAG, \
IS_VIEW, \
ATTRIBUTES_SEQ, \
ATTRIBUTES_CALLBACK) \
\
namespace boost \
{ \
namespace fusion \
{ \
namespace traits \
{ \
BOOST_FUSION_ADAPT_STRUCT_TAG_OF_SPECIALIZATION( \
BOOST_PP_EMPTY(), TEMPLATE_PARAMS_SEQ, NAME_SEQ, TAG) \
BOOST_FUSION_ADAPT_STRUCT_TAG_OF_SPECIALIZATION( \
const, TEMPLATE_PARAMS_SEQ, NAME_SEQ, TAG) \
} \
\
namespace extension \
{ \
BOOST_PP_IF( \
BOOST_PP_DEC(BOOST_PP_SEQ_SIZE(ATTRIBUTES_SEQ)), \
BOOST_PP_SEQ_FOR_EACH_I_R, \
BOOST_PP_TUPLE_EAT(4))( \
1, \
BOOST_FUSION_ADAPT_STRUCT_BASE_UNPACK_AND_CALL, \
(ATTRIBUTES_CALLBACK,TEMPLATE_PARAMS_SEQ,NAME_SEQ, IS_VIEW),\
BOOST_PP_SEQ_TAIL(ATTRIBUTES_SEQ)) \
\
template< \
BOOST_FUSION_ADAPT_STRUCT_UNPACK_TEMPLATE_PARAMS( \
TEMPLATE_PARAMS_SEQ) \
> \
struct struct_size<BOOST_FUSION_ADAPT_STRUCT_UNPACK_NAME(NAME_SEQ)> \
: mpl::int_<BOOST_PP_DEC(BOOST_PP_SEQ_SIZE(ATTRIBUTES_SEQ))> \
{}; \
\
template< \
BOOST_FUSION_ADAPT_STRUCT_UNPACK_TEMPLATE_PARAMS( \
TEMPLATE_PARAMS_SEQ) \
> \
struct struct_is_view< \
BOOST_FUSION_ADAPT_STRUCT_UNPACK_NAME(NAME_SEQ) \
> \
: mpl::BOOST_PP_IIF(IS_VIEW,true_,false_) \
{}; \
} \
} \
\
namespace mpl \
{ \
template<typename> \
struct sequence_tag; \
\
template< \
BOOST_FUSION_ADAPT_STRUCT_UNPACK_TEMPLATE_PARAMS( \
TEMPLATE_PARAMS_SEQ) \
> \
struct sequence_tag<BOOST_FUSION_ADAPT_STRUCT_UNPACK_NAME(NAME_SEQ)> \
{ \
typedef fusion::fusion_sequence_tag type; \
}; \
\
template< \
BOOST_FUSION_ADAPT_STRUCT_UNPACK_TEMPLATE_PARAMS( \
TEMPLATE_PARAMS_SEQ) \
> \
struct sequence_tag< \
BOOST_FUSION_ADAPT_STRUCT_UNPACK_NAME(NAME_SEQ) const \
> \
{ \
typedef fusion::fusion_sequence_tag type; \
}; \
} \
}
#endif