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Fusion: removed fusion::sequence_root; Fixes #2335

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[SVN r66411]
This commit is contained in:
Christopher Schmidt
2010-11-06 12:21:18 +00:00
parent 09bd088660
commit 6eba238b69
7 changed files with 59 additions and 18 deletions
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1
include/boost/fusion/container/deque/deque.hpp
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@ -27,6 +27,7 @@
#include <boost/fusion/container/deque/detail/at_impl.hpp>
#include <boost/fusion/container/deque/detail/begin_impl.hpp>
#include <boost/fusion/container/deque/detail/end_impl.hpp>
#include <boost/fusion/container/deque/detail/is_sequence_impl.hpp>
#include <boost/fusion/sequence/intrinsic/begin.hpp>
#include <boost/mpl/bool.hpp>

33
include/boost/fusion/container/deque/detail/is_sequence_impl.hpp Normal file
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@ -0,0 +1,33 @@
/*=============================================================================
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_CONTAINER_DEQUE_DETAIL_IS_SEQUENCE_IMPL_HPP
#define BOOST_FUSION_CONTAINER_DEQUE_DETAIL_IS_SEQUENCE_IMPL_HPP
#include <boost/mpl/bool.hpp>
namespace boost { namespace fusion
{
struct deque_tag;
namespace extension
{
template<typename T>
struct is_sequence_impl;
template<>
struct is_sequence_impl<deque_tag>
{
template<typename Sequence>
struct apply
: mpl::true_
{};
};
}
}}
#endif

11
include/boost/fusion/container/vector/detail/vector_n.hpp
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@ -36,8 +36,8 @@
#define N BOOST_PP_ITERATION()
template <typename Derived, BOOST_PP_ENUM_PARAMS(N, typename T)>
struct BOOST_PP_CAT(vector_data, N) : sequence_base<Derived>
template <BOOST_PP_ENUM_PARAMS(N, typename T)>
struct BOOST_PP_CAT(vector_data, N)
{
BOOST_PP_CAT(vector_data, N)()
: BOOST_PP_ENUM(N, FUSION_MEMBER_DEFAULT_INIT, _) {}
@ -73,12 +73,11 @@
template <BOOST_PP_ENUM_PARAMS(N, typename T)>
struct BOOST_PP_CAT(vector, N)
: BOOST_PP_CAT(vector_data, N)<
BOOST_PP_CAT(vector, N)<BOOST_PP_ENUM_PARAMS(N, T)>
, BOOST_PP_ENUM_PARAMS(N, T)>
: BOOST_PP_CAT(vector_data, N)<BOOST_PP_ENUM_PARAMS(N, T)>
, sequence_base<BOOST_PP_CAT(vector, N)<BOOST_PP_ENUM_PARAMS(N, T)> >
{
typedef BOOST_PP_CAT(vector, N)<BOOST_PP_ENUM_PARAMS(N, T)> this_type;
typedef BOOST_PP_CAT(vector_data, N)<this_type, BOOST_PP_ENUM_PARAMS(N, T)> base_type;
typedef BOOST_PP_CAT(vector_data, N)<BOOST_PP_ENUM_PARAMS(N, T)> base_type;
typedef mpl::BOOST_PP_CAT(vector, N)<BOOST_PP_ENUM_PARAMS(N, T)> types;
typedef vector_tag fusion_tag;
typedef fusion_sequence_tag tag; // this gets picked up by MPL

8
include/boost/fusion/sequence/comparison/detail/enable_comparison.hpp
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@ -13,22 +13,18 @@
#include <boost/mpl/equal_to.hpp>
#include <boost/fusion/support/is_sequence.hpp>
#include <boost/fusion/sequence/intrinsic/size.hpp>
#include <boost/fusion/support/detail/is_mpl_sequence.hpp>
namespace boost { namespace fusion { namespace detail
{
template <typename Sequence>
struct is_native_fusion_sequence : is_base_of<sequence_root, Sequence> {};
template <typename Seq1, typename Seq2>
struct enable_equality
: mpl::or_<is_native_fusion_sequence<Seq1>, is_native_fusion_sequence<Seq2> >
: mpl::or_<traits::is_sequence<Seq1>, traits::is_sequence<Seq2> >
{};
template <typename Seq1, typename Seq2>
struct enable_comparison
: mpl::and_<
mpl::or_<is_native_fusion_sequence<Seq1>, is_native_fusion_sequence<Seq2> >
mpl::or_<traits::is_sequence<Seq1>, traits::is_sequence<Seq2> >
, mpl::equal_to<result_of::size<Seq1>, result_of::size<Seq2> >
>
{};

4
include/boost/fusion/support/detail/is_mpl_sequence.hpp
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@ -9,17 +9,17 @@
#define FUSION_DETAIL_IS_MPL_SEQUENCE_29122006_1105
#include <boost/fusion/support/sequence_base.hpp>
#include <boost/type_traits/is_base_of.hpp>
#include <boost/mpl/is_sequence.hpp>
#include <boost/mpl/and.hpp>
#include <boost/mpl/not.hpp>
#include <boost/type_traits/is_convertible.hpp>
namespace boost { namespace fusion { namespace detail
{
template <typename T>
struct is_mpl_sequence
: mpl::and_<
mpl::not_<is_base_of<sequence_root, T> >
mpl::not_<is_convertible<T, from_sequence_convertible_type> >
, mpl::is_sequence<T> >
{};
}}}

7
include/boost/fusion/support/is_sequence.hpp
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@ -7,12 +7,13 @@
#if !defined(FUSION_IS_SEQUENCE_05052005_1002)
#define FUSION_IS_SEQUENCE_05052005_1002
#include <boost/type_traits/is_base_of.hpp>
#include <boost/fusion/support/sequence_base.hpp>
#include <boost/fusion/support/tag_of.hpp>
#include <boost/mpl/is_sequence.hpp>
#include <boost/mpl/or.hpp>
#include <boost/mpl/bool.hpp>
#include <boost/type_traits/is_convertible.hpp>
#include <boost/type_traits/is_same.hpp>
namespace boost { namespace fusion
{
@ -29,7 +30,9 @@ namespace boost { namespace fusion
struct is_sequence_impl
{
template <typename Sequence>
struct apply : is_base_of<sequence_root, Sequence> {};
struct apply
: is_convertible<Sequence, detail::from_sequence_convertible_type>
{};
};
template <>

13
include/boost/fusion/support/sequence_base.hpp
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@ -12,10 +12,14 @@
namespace boost { namespace fusion
{
struct sequence_root {};
namespace detail
{
struct from_sequence_convertible_type
{};
}
template <typename Sequence>
struct sequence_base : sequence_root
struct sequence_base
{
Sequence const&
derived() const
@ -28,6 +32,11 @@ namespace boost { namespace fusion
{
return static_cast<Sequence&>(*this);
}
operator detail::from_sequence_convertible_type()const
{
return detail::from_sequence_convertible_type();
}
};
struct fusion_sequence_tag;