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145 lines
4.2 KiB
145 lines
4.2 KiB
/*============================================================================= |
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Copyright (c) 2005-2007 Dan Marsden |
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Copyright (c) 2005-2007 Joel de Guzman |
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Distributed under the Boost Software License, Version 1.0. (See accompanying |
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file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
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==============================================================================*/ |
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#ifndef PHOENIX_OPERATOR_MEMBER_HPP |
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#define PHOENIX_OPERATOR_MEMBER_HPP |
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#include <boost/spirit/home/phoenix/core/actor.hpp> |
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#include <boost/spirit/home/phoenix/core/composite.hpp> |
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#include <boost/spirit/home/phoenix/core/compose.hpp> |
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#include <boost/type_traits/add_reference.hpp> |
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#include <boost/type_traits/add_const.hpp> |
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#include <boost/type_traits/is_const.hpp> |
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#include <boost/type_traits/remove_reference.hpp> |
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#include <boost/type_traits/is_member_pointer.hpp> |
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#include <boost/type_traits/is_member_function_pointer.hpp> |
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#include <boost/mpl/eval_if.hpp> |
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#include <boost/mpl/identity.hpp> |
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#include <boost/mpl/and.hpp> |
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#include <boost/mpl/not.hpp> |
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#include <boost/utility/enable_if.hpp> |
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#include <boost/get_pointer.hpp> |
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#include <boost/spirit/home/phoenix/operator/detail/mem_fun_ptr_gen.hpp> |
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#include <memory> |
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namespace boost { |
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template<typename T> class shared_ptr; |
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template<typename T> class scoped_ptr; |
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namespace phoenix { |
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namespace detail |
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{ |
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template<typename T> |
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struct member_type; |
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template<typename Class, typename MemberType> |
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struct member_type<MemberType (Class::*)> |
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{ |
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typedef MemberType type; |
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}; |
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} |
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namespace meta |
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{ |
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template<typename T> |
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struct pointed_type; |
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template<typename T> |
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struct pointed_type<T*> |
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{ |
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typedef T type; |
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}; |
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template<typename T> |
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struct pointed_type<shared_ptr<T> > |
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{ |
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typedef T type; |
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}; |
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template<typename T> |
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struct pointed_type<scoped_ptr<T> > |
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{ |
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typedef T type; |
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}; |
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template<typename T> |
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struct pointed_type<std::auto_ptr<T> > |
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{ |
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typedef T type; |
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}; |
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} |
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struct member_object_eval |
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{ |
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template<typename Env, typename PtrActor, typename MemPtrActor> |
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struct result |
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{ |
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typedef typename detail::member_type< |
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typename eval_result<MemPtrActor, Env>::type>::type member_type; |
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typedef typename meta::pointed_type< |
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typename remove_reference< |
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typename eval_result<PtrActor, Env>::type>::type>::type object_type; |
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typedef typename add_reference< |
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typename mpl::eval_if< |
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is_const<object_type>, |
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add_const<member_type>, |
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mpl::identity<member_type> >::type>::type type; |
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}; |
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template<typename Rt, typename Env, typename PtrActor, typename MemPtrActor> |
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static typename result<Env,PtrActor,MemPtrActor>::type |
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eval(const Env& env, PtrActor& ptrActor, MemPtrActor& memPtrActor) |
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{ |
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return get_pointer(ptrActor.eval(env))->*memPtrActor.eval(env); |
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} |
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}; |
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namespace member_object |
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{ |
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template<typename T0, typename MemObjPtr> |
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typename enable_if< |
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mpl::and_<is_member_pointer<MemObjPtr>, mpl::not_<is_member_function_pointer<MemObjPtr> > >, |
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actor<typename as_composite< |
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member_object_eval, actor<T0>, |
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typename as_actor<MemObjPtr>::type>::type> >::type |
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operator->*( |
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const actor<T0>& ptrActor, |
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MemObjPtr memObjPtr) |
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{ |
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return compose<member_object_eval>( |
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ptrActor, |
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as_actor<MemObjPtr>::convert(memObjPtr)); |
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} |
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} |
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namespace member_function |
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{ |
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template<typename T0, typename MemFunPtr> |
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typename enable_if< |
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is_member_function_pointer<MemFunPtr>, |
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mem_fun_ptr_gen<actor<T0>, MemFunPtr> >::type |
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operator->*(const actor<T0>& ptrActor, MemFunPtr memFunPtr) |
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{ |
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return mem_fun_ptr_gen<actor<T0>, MemFunPtr>( |
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ptrActor, memFunPtr); |
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} |
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} |
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using member_object::operator->*; |
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using member_function::operator->*; |
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}} |
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#endif
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