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better adapt structs/classes implementation

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[SVN r59913]
This commit is contained in:
Christopher Schmidt
2010-02-25 20:10:37 +00:00
parent f84bc30bd3
commit e67765747d
39 changed files with 266 additions and 701 deletions
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96
include/boost/fusion/adapted/class/detail/adapt_base.hpp
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@@ -1,14 +1,35 @@
/*=============================================================================
Copyright (c) 2001-2009 Joel de Guzman
Copyright (c) 2005-2006 Dan Marsden
Copyright (c) 2010 Christopher Schmidt
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_DETAIL_CLASS_ADAPT_BASE_HPP
#define BOOST_FUSION_ADAPTED_DETAIL_CLASS_ADAPT_BASE_HPP
#ifndef BOOST_FUSION_ADAPTED_CLASS_DETAIL_ADAPT_BASE_HPP
#define BOOST_FUSION_ADAPTED_CLASS_DETAIL_ADAPT_BASE_HPP
#include <boost/fusion/adapted/struct/detail/adapt_base.hpp>
#include <boost/preprocessor/control/if.hpp>
#include <boost/preprocessor/seq/seq.hpp>
#include <boost/preprocessor/seq/elem.hpp>
#include <boost/mpl/if.hpp>
#include <boost/type_traits/is_const.hpp>
//cschmidt: Spirit relies on Fusion defining class_member_proxy in the
//boost::fusion::extension namespace, with two nested types named lvalue and
//rvalue.
#define BOOST_FUSION_ADAPT_CLASS_GET_IDENTITY_TEMPLATE_IMPL(TEMPLATE_PARAMS_SEQ)\
typename detail::get_identity< \
lvalue \
, BOOST_PP_SEQ_ELEM(1,TEMPLATE_PARAMS_SEQ) \
>::type
#define BOOST_FUSION_ADAPT_CLASS_GET_IDENTITY_NON_TEMPLATE_IMPL( \
TEMPLATE_PARAMS_SEQ) \
\
lvalue
#define BOOST_FUSION_ADAPT_CLASS_C_BASE(\
TEMPLATE_PARAMS_SEQ,NAME_SEQ,I,ATTRIBUTE,ATTRIBUTE_TUPEL_SIZE) \
@@ -21,9 +42,8 @@
, I \
> \
{ \
typedef \
BOOST_PP_TUPLE_ELEM(ATTRIBUTE_TUPEL_SIZE, 0, ATTRIBUTE) \
type; \
typedef BOOST_PP_TUPLE_ELEM(ATTRIBUTE_TUPEL_SIZE, 0, ATTRIBUTE) lvalue; \
typedef BOOST_PP_TUPLE_ELEM(ATTRIBUTE_TUPEL_SIZE, 1, ATTRIBUTE) rvalue; \
\
class_member_proxy(BOOST_FUSION_ADAPT_STRUCT_UNPACK_NAME(NAME_SEQ)& obj)\
: obj(obj) \
@@ -31,13 +51,13 @@
\
template<class Arg> \
class_member_proxy& \
operator=(Arg val) \
operator=(Arg const& val) \
{ \
BOOST_PP_TUPLE_ELEM(ATTRIBUTE_TUPEL_SIZE, 3, ATTRIBUTE); \
return *this; \
} \
\
operator type() \
operator lvalue() \
{ \
return BOOST_PP_TUPLE_ELEM(ATTRIBUTE_TUPEL_SIZE, 2, ATTRIBUTE); \
} \
@@ -50,34 +70,46 @@
> \
struct struct_member<BOOST_FUSION_ADAPT_STRUCT_UNPACK_NAME(NAME_SEQ), I> \
{ \
typedef BOOST_PP_TUPLE_ELEM(ATTRIBUTE_TUPEL_SIZE, 0, ATTRIBUTE) type; \
typedef \
BOOST_PP_TUPLE_ELEM(ATTRIBUTE_TUPEL_SIZE, 1, ATTRIBUTE) \
get_type; \
typedef \
class_member_proxy< \
BOOST_FUSION_ADAPT_STRUCT_UNPACK_NAME(NAME_SEQ) \
, I \
> \
proxy; \
typedef BOOST_PP_TUPLE_ELEM(ATTRIBUTE_TUPEL_SIZE, 0, ATTRIBUTE) lvalue; \
\
static get_type \
call(BOOST_FUSION_ADAPT_STRUCT_UNPACK_NAME(NAME_SEQ) const& obj) \
{ \
return BOOST_PP_TUPLE_ELEM(ATTRIBUTE_TUPEL_SIZE, 2, ATTRIBUTE); \
}; \
typedef \
BOOST_PP_IF( \
BOOST_PP_SEQ_HEAD(TEMPLATE_PARAMS_SEQ), \
BOOST_FUSION_ADAPT_CLASS_GET_IDENTITY_TEMPLATE_IMPL, \
BOOST_FUSION_ADAPT_CLASS_GET_IDENTITY_NON_TEMPLATE_IMPL)( \
TEMPLATE_PARAMS_SEQ) \
type; \
\
static proxy \
call(BOOST_FUSION_ADAPT_STRUCT_UNPACK_NAME(NAME_SEQ)& obj) \
template<typename Seq> \
struct apply \
{ \
return proxy(obj); \
typedef \
class_member_proxy< \
BOOST_FUSION_ADAPT_STRUCT_UNPACK_NAME(NAME_SEQ) \
, I \
> \
proxy; \
\
typedef typename \
mpl::if_< \
is_const<Seq> \
, BOOST_PP_TUPLE_ELEM(ATTRIBUTE_TUPEL_SIZE, 1, ATTRIBUTE) \
, proxy \
>::type \
type; \
\
static proxy \
call(BOOST_FUSION_ADAPT_STRUCT_UNPACK_NAME(NAME_SEQ)& obj) \
{ \
return proxy(obj); \
} \
\
static BOOST_PP_TUPLE_ELEM(ATTRIBUTE_TUPEL_SIZE, 1, ATTRIBUTE) \
call(BOOST_FUSION_ADAPT_STRUCT_UNPACK_NAME(NAME_SEQ) const& obj) \
{ \
return BOOST_PP_TUPLE_ELEM(ATTRIBUTE_TUPEL_SIZE, 2, ATTRIBUTE); \
} \
}; \
};
namespace boost { namespace fusion { namespace extension
{
template <typename T, int N>
struct class_member_proxy;
}}}
#endif