projects / ceph.git / blame
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|---|---|---|
| 7c673cae FG |
1 | /*============================================================================= |
| 2 | Copyright (c) 2001-2014 Joel de Guzman | |
| 3 | http://spirit.sourceforge.net/ | |
| 4 | ||
| 5 | Distributed under the Boost Software License, Version 1.0. (See accompanying | |
| 6 | file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | |
| 7 | =============================================================================*/ | |
| 8 | #if !defined(BOOST_SPIRIT_X3_ATTRIBUTE_CATEGORY_JAN_4_2012_1150AM) | |
| 9 | #define BOOST_SPIRIT_X3_ATTRIBUTE_CATEGORY_JAN_4_2012_1150AM | |
| 10 | ||
| 11 | #include <boost/mpl/identity.hpp> | |
| 12 | #include <boost/mpl/logical.hpp> | |
| 13 | #include <boost/mpl/eval_if.hpp> | |
| 7c673cae FG |
14 | #include <boost/fusion/include/is_sequence.hpp> |
| 15 | #include <boost/fusion/support/category_of.hpp> | |
| 16 | #include <boost/spirit/home/x3/support/traits/is_variant.hpp> | |
| 11fdf7f2 | 17 | #include <boost/spirit/home/x3/support/traits/is_range.hpp> |
| 7c673cae | 18 | #include <boost/spirit/home/x3/support/traits/container_traits.hpp> |
| 11fdf7f2 | 19 | #include <boost/spirit/home/x3/support/traits/optional_traits.hpp> |
| 7c673cae FG |
20 | |
| 21 | namespace boost { namespace spirit { namespace x3 | |
| 22 | { | |
| 23 | struct unused_type; | |
| 24 | }}} | |
| 25 | ||
| 26 | namespace boost { namespace spirit { namespace x3 { namespace traits | |
| 27 | { | |
| 28 | struct unused_attribute {}; | |
| 29 | struct plain_attribute {}; | |
| 30 | struct container_attribute {}; | |
| 31 | struct tuple_attribute {}; | |
| 32 | struct associative_attribute {}; | |
| 33 | struct variant_attribute {}; | |
| 34 | struct optional_attribute {}; | |
| 11fdf7f2 | 35 | struct range_attribute {}; |
| 7c673cae FG |
36 | |
| 37 | template <typename T, typename Enable = void> | |
| 38 | struct attribute_category | |
| 39 | : mpl::identity<plain_attribute> {}; | |
| 40 | ||
| 41 | template <> | |
| 42 | struct attribute_category<unused_type> | |
| 43 | : mpl::identity<unused_attribute> {}; | |
| 44 | ||
| 45 | template <> | |
| 46 | struct attribute_category<unused_type const> | |
| 47 | : mpl::identity<unused_attribute> {}; | |
| 48 | ||
| 49 | template <typename T> | |
| 50 | struct attribute_category< T | |
| 11fdf7f2 TL |
51 | , typename enable_if< |
| 52 | typename mpl::eval_if< | |
| 53 | fusion::traits::is_sequence<T> | |
| 54 | , fusion::traits::is_associative<T> | |
| 55 | , mpl::false_ | |
| 56 | >::type >::type > | |
| 7c673cae FG |
57 | : mpl::identity<associative_attribute> {}; |
| 58 | ||
| 59 | template <typename T> | |
| 60 | struct attribute_category< T | |
| 11fdf7f2 TL |
61 | , typename enable_if< |
| 62 | mpl::and_< | |
| 63 | fusion::traits::is_sequence<T> | |
| 64 | , mpl::not_<fusion::traits::is_associative<T> > | |
| 65 | > >::type > | |
| 7c673cae FG |
66 | : mpl::identity<tuple_attribute> {}; |
| 67 | ||
| 68 | template <typename T> | |
| 69 | struct attribute_category<T, | |
| 70 | typename enable_if<traits::is_variant<T>>::type> | |
| 71 | : mpl::identity<variant_attribute> {}; | |
| 72 | ||
| 73 | template <typename T> | |
| 74 | struct attribute_category<T, | |
| 11fdf7f2 TL |
75 | typename enable_if<traits::is_optional<T>>::type> |
| 76 | : mpl::identity<optional_attribute> {}; | |
| 77 | ||
| 78 | template <typename T> | |
| 79 | struct attribute_category<T, | |
| 80 | typename enable_if<traits::is_range<T>>::type> | |
| 81 | : mpl::identity<range_attribute> {}; | |
| 82 | ||
| 83 | template <typename T> | |
| 84 | struct attribute_category< T | |
| 85 | , typename enable_if< | |
| 86 | mpl::and_< | |
| 87 | traits::is_container<T> | |
| 88 | , mpl::not_<fusion::traits::is_sequence<T> > | |
| 89 | , mpl::not_<traits::is_range<T> > | |
| 90 | > >::type > | |
| 7c673cae FG |
91 | : mpl::identity<container_attribute> {}; |
| 92 | ||
| 93 | }}}} | |
| 94 | ||
| 95 | #endif |