| /*============================================================================= |
| Copyright (c) 2001-2007 Joel de Guzman |
| |
| 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_PHOENIX_CORE_DETAIL_MEMBER_VARIABLE_HPP |
| #define BOOST_PHOENIX_CORE_DETAIL_MEMBER_VARIABLE_HPP |
| |
| #include <boost/proto/detail/decltype.hpp> |
| #include <boost/type_traits/remove_pointer.hpp> |
| |
| namespace boost { namespace phoenix { namespace detail { |
| |
| template <typename RT, typename MP> |
| struct member_variable |
| { |
| template <typename Sig> |
| struct result; |
| |
| template <typename This, typename Class> |
| struct result<This(Class)> |
| : result<This(Class const &)> |
| {}; |
| |
| template <typename This, typename Class> |
| struct result<This(Class &)> |
| { |
| typedef typename boost::mpl::if_c< |
| boost::is_const< |
| typename boost::remove_pointer< |
| typename boost::remove_reference<Class>::type |
| >::type |
| >::value |
| , const RT& |
| , RT& |
| >::type |
| type; |
| }; |
| |
| member_variable(MP mp) |
| : mp(mp) {} |
| |
| template <typename Class> |
| RT& operator()(Class& obj) const |
| { |
| BOOST_PROTO_USE_GET_POINTER(); |
| |
| typedef typename proto::detail::classtypeof<MP>::type class_type; |
| return (BOOST_PROTO_GET_POINTER(class_type, obj)->*mp); |
| } |
| |
| template <typename Class> |
| RT const& operator()(Class const& obj) const |
| { |
| BOOST_PROTO_USE_GET_POINTER(); |
| |
| typedef typename proto::detail::classtypeof<MP>::type class_type; |
| return (BOOST_PROTO_GET_POINTER(class_type, obj)->*mp); |
| } |
| |
| template <typename Class> |
| RT& operator()(Class* obj) const |
| { |
| return obj->*mp; |
| } |
| |
| template <typename Class> |
| RT const& operator()(Class const* obj) const |
| { |
| return obj->*mp; |
| } |
| |
| MP mp; |
| }; |
| }}} |
| |
| #endif |
