projects / ceph.git / blame
| Commit | Line | Data |
|---|---|---|
| 7c673cae FG |
1 | /*============================================================================= |
| 2 | Copyright (c) 2001-2011 Hartmut Kaiser | |
| 3 | ||
| 4 | Distributed under the Boost Software License, Version 1.0. (See accompanying | |
| 5 | file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | |
| 6 | ==============================================================================*/ | |
| 7 | #if !defined(BOOST_SPIRIT_HANDLES_CONTAINER_DEC_18_2010_0920AM) | |
| 8 | #define BOOST_SPIRIT_HANDLES_CONTAINER_DEC_18_2010_0920AM | |
| 9 | ||
| 10 | #if defined(_MSC_VER) | |
| 11 | #pragma once | |
| 12 | #endif | |
| 13 | ||
| 14 | #include <boost/spirit/home/support/attributes_fwd.hpp> | |
| 15 | #include <boost/mpl/bool.hpp> | |
| 16 | #include <boost/mpl/or.hpp> | |
| 17 | #include <boost/mpl/not.hpp> | |
| 18 | #include <boost/mpl/find_if.hpp> | |
| 19 | #include <boost/type_traits/is_same.hpp> | |
| 20 | ||
| 21 | namespace boost { namespace spirit { namespace traits | |
| 22 | { | |
| 23 | // Finds out whether a component handles container attributes intrinsically | |
| 24 | // (or whether container attributes need to be split up separately). | |
| 25 | template <typename T, typename Attribute, typename Context | |
| 26 | , typename Iterator, typename Enable> | |
| 27 | struct handles_container : mpl::false_ {}; | |
| 28 | ||
| 29 | template <typename Subject, typename Attribute, typename Context | |
| 30 | , typename Iterator> | |
| 31 | struct unary_handles_container | |
| 32 | : handles_container<Subject, Attribute, Context, Iterator> {}; | |
| 33 | ||
| 34 | template <typename Left, typename Right, typename Attribute | |
| 35 | , typename Context, typename Iterator> | |
| 36 | struct binary_handles_container | |
| 37 | : mpl::or_< | |
| 38 | handles_container<Left, Attribute, Context, Iterator> | |
| 39 | , handles_container<Right, Attribute, Context, Iterator> > | |
| 40 | {}; | |
| 41 | ||
| 42 | template <typename Elements, typename Attribute, typename Context | |
| 43 | , typename Iterator> | |
| 44 | struct nary_handles_container | |
| 45 | : mpl::not_< | |
| 46 | is_same< | |
| 47 | typename mpl::find_if< | |
| 48 | Elements, handles_container<mpl::_, Attribute | |
| 49 | , Context, Iterator> | |
| 50 | >::type | |
| 51 | , typename mpl::end<Elements>::type> > | |
| 52 | {}; | |
| 53 | }}} | |
| 54 | ||
| 55 | #endif |