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Fusion/Spirit: adt_attribute_proxy refactorization

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[SVN r65445]
This commit is contained in:
Christopher Schmidt
2010-09-17 20:38:23 +00:00
parent 5adcb5b4d2
commit f723f870c7
3 changed files with 82 additions and 19 deletions
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70
include/boost/fusion/adapted/adt/detail/adapt_base.hpp
View File

@ -33,7 +33,39 @@
template< \ template< \
BOOST_FUSION_ADAPT_STRUCT_UNPACK_TEMPLATE_PARAMS(TEMPLATE_PARAMS_SEQ) \ BOOST_FUSION_ADAPT_STRUCT_UNPACK_TEMPLATE_PARAMS(TEMPLATE_PARAMS_SEQ) \
> \ > \
struct access::adt_attribute_proxy< \ struct access::adt_attribute_access< \
BOOST_FUSION_ADAPT_STRUCT_UNPACK_NAME(NAME_SEQ) \
, I \
> \
{ \
template<class Arg> \
static void \
boost_fusion_adapt_adt_impl_set( \
BOOST_FUSION_ADAPT_STRUCT_UNPACK_NAME(NAME_SEQ)& obj, \
Arg const& val) \
{ \
BOOST_PP_TUPLE_ELEM(ATTRIBUTE_TUPEL_SIZE, 3, ATTRIBUTE); \
} \
\
static BOOST_PP_TUPLE_ELEM(ATTRIBUTE_TUPEL_SIZE, 0, ATTRIBUTE) \
boost_fusion_adapt_adt_impl_get( \
BOOST_FUSION_ADAPT_STRUCT_UNPACK_NAME(NAME_SEQ)& obj) \
{ \
return BOOST_PP_TUPLE_ELEM(ATTRIBUTE_TUPEL_SIZE, 2, ATTRIBUTE); \
} \
\
static BOOST_PP_TUPLE_ELEM(ATTRIBUTE_TUPEL_SIZE, 1, ATTRIBUTE) \
boost_fusion_adapt_adt_impl_get( \
BOOST_FUSION_ADAPT_STRUCT_UNPACK_NAME(NAME_SEQ) const& obj) \
{ \
return BOOST_PP_TUPLE_ELEM(ATTRIBUTE_TUPEL_SIZE, 2, ATTRIBUTE); \
} \
}; \
\
template< \
BOOST_FUSION_ADAPT_STRUCT_UNPACK_TEMPLATE_PARAMS(TEMPLATE_PARAMS_SEQ) \
> \
struct adt_attribute_proxy< \
BOOST_FUSION_ADAPT_STRUCT_UNPACK_NAME(NAME_SEQ) \ BOOST_FUSION_ADAPT_STRUCT_UNPACK_NAME(NAME_SEQ) \
, I \ , I \
, true \ , true \
@ -43,25 +75,25 @@
\ \
explicit \ explicit \
adt_attribute_proxy( \ adt_attribute_proxy( \
BOOST_FUSION_ADAPT_STRUCT_UNPACK_NAME(NAME_SEQ) const& o) \ BOOST_FUSION_ADAPT_STRUCT_UNPACK_NAME(NAME_SEQ) const*const o) \
: obj(o) \ : obj(o) \
{} \ {} \
\ \
operator type() const \ operator type() const \
{ \ { \
return BOOST_PP_TUPLE_ELEM(ATTRIBUTE_TUPEL_SIZE, 2, ATTRIBUTE); \ return access::adt_attribute_access< \
BOOST_FUSION_ADAPT_STRUCT_UNPACK_NAME(NAME_SEQ) \
, I \
>::boost_fusion_adapt_adt_impl_get(*obj); \
} \ } \
\ \
BOOST_FUSION_ADAPT_STRUCT_UNPACK_NAME(NAME_SEQ) const& obj; \ BOOST_FUSION_ADAPT_STRUCT_UNPACK_NAME(NAME_SEQ) const* obj; \
\
private: \
adt_attribute_proxy& operator= (adt_attribute_proxy const&); \
}; \ }; \
\ \
template< \ template< \
BOOST_FUSION_ADAPT_STRUCT_UNPACK_TEMPLATE_PARAMS(TEMPLATE_PARAMS_SEQ) \ BOOST_FUSION_ADAPT_STRUCT_UNPACK_TEMPLATE_PARAMS(TEMPLATE_PARAMS_SEQ) \
> \ > \
struct access::adt_attribute_proxy< \ struct adt_attribute_proxy< \
BOOST_FUSION_ADAPT_STRUCT_UNPACK_NAME(NAME_SEQ) \ BOOST_FUSION_ADAPT_STRUCT_UNPACK_NAME(NAME_SEQ) \
, I \ , I \
, false \ , false \
@ -70,7 +102,8 @@
typedef BOOST_PP_TUPLE_ELEM(ATTRIBUTE_TUPEL_SIZE, 0, ATTRIBUTE) type; \ typedef BOOST_PP_TUPLE_ELEM(ATTRIBUTE_TUPEL_SIZE, 0, ATTRIBUTE) type; \
\ \
explicit \ explicit \
adt_attribute_proxy(BOOST_FUSION_ADAPT_STRUCT_UNPACK_NAME(NAME_SEQ)& o) \ adt_attribute_proxy( \
BOOST_FUSION_ADAPT_STRUCT_UNPACK_NAME(NAME_SEQ)*const o) \
: obj(o) \ : obj(o) \
{} \ {} \
\ \
@ -78,19 +111,22 @@
adt_attribute_proxy& \ adt_attribute_proxy& \
operator=(Arg const& val) \ operator=(Arg const& val) \
{ \ { \
BOOST_PP_TUPLE_ELEM(ATTRIBUTE_TUPEL_SIZE, 3, ATTRIBUTE); \ access::adt_attribute_access< \
BOOST_FUSION_ADAPT_STRUCT_UNPACK_NAME(NAME_SEQ) \
, I \
>::boost_fusion_adapt_adt_impl_set(*obj, val); \
return *this; \ return *this; \
} \ } \
\ \
operator type() const \ operator type() const \
{ \ { \
return BOOST_PP_TUPLE_ELEM(ATTRIBUTE_TUPEL_SIZE, 2, ATTRIBUTE); \ return access::adt_attribute_access< \
BOOST_FUSION_ADAPT_STRUCT_UNPACK_NAME(NAME_SEQ) \
, I \
>::boost_fusion_adapt_adt_impl_get(*obj); \
} \ } \
\ \
BOOST_FUSION_ADAPT_STRUCT_UNPACK_NAME(NAME_SEQ)& obj; \ BOOST_FUSION_ADAPT_STRUCT_UNPACK_NAME(NAME_SEQ)* obj; \
\
private: \
adt_attribute_proxy& operator= (adt_attribute_proxy const&); \
}; \ }; \
\ \
template< \ template< \
@ -117,7 +153,7 @@
struct apply \ struct apply \
{ \ { \
typedef \ typedef \
access::adt_attribute_proxy< \ adt_attribute_proxy< \
BOOST_FUSION_ADAPT_STRUCT_UNPACK_NAME(NAME_SEQ) \ BOOST_FUSION_ADAPT_STRUCT_UNPACK_NAME(NAME_SEQ) \
, I \ , I \
, is_const<Seq>::value \ , is_const<Seq>::value \
@ -127,7 +163,7 @@
static type \ static type \
call(Seq& obj) \ call(Seq& obj) \
{ \ { \
return type(obj); \ return type(&obj); \
} \ } \
}; \ }; \
}; };

5
include/boost/fusion/adapted/struct/detail/extension.hpp
View File

@ -32,9 +32,12 @@ namespace boost { namespace fusion
template<typename Seq, int N> template<typename Seq, int N>
struct struct_member; struct struct_member;
template<typename Seq, int N>
struct adt_attribute_access;
};
template <typename T, int N, bool Const> template <typename T, int N, bool Const>
struct adt_attribute_proxy; struct adt_attribute_proxy;
};
template<typename Seq, int N> template<typename Seq, int N>
struct struct_member_name; struct struct_member_name;

24
test/sequence/adapt_adt.cpp
View File

@ -28,6 +28,7 @@
#include <boost/mpl/front.hpp> #include <boost/mpl/front.hpp>
#include <boost/mpl/is_sequence.hpp> #include <boost/mpl/is_sequence.hpp>
#include <boost/mpl/assert.hpp> #include <boost/mpl/assert.hpp>
#include <boost/type_traits/is_same.hpp>
#include <iostream> #include <iostream>
#include <string> #include <string>
@ -174,6 +175,29 @@ main()
} }
#endif #endif
{
BOOST_MPL_ASSERT((
boost::is_same<
result_of::front<ns::point>::type,
boost::fusion::extension::adt_attribute_proxy<ns::point,0,false>
>));
BOOST_MPL_ASSERT((
boost::is_same<
result_of::front<ns::point>::type::type,
int
>));
BOOST_MPL_ASSERT((
boost::is_same<
result_of::front<ns::point const>::type,
boost::fusion::extension::adt_attribute_proxy<ns::point,0,true>
>));
BOOST_MPL_ASSERT((
boost::is_same<
result_of::front<ns::point const>::type::type,
int
>));
}
return boost::report_errors(); return boost::report_errors();
} }