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Diffstat (limited to '3rdParty/Boost/src/boost/signals2/detail/tracked_objects_visitor.hpp')
-rw-r--r-- | 3rdParty/Boost/src/boost/signals2/detail/tracked_objects_visitor.hpp | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/3rdParty/Boost/src/boost/signals2/detail/tracked_objects_visitor.hpp b/3rdParty/Boost/src/boost/signals2/detail/tracked_objects_visitor.hpp new file mode 100644 index 0000000..71a1d50 --- /dev/null +++ b/3rdParty/Boost/src/boost/signals2/detail/tracked_objects_visitor.hpp @@ -0,0 +1,98 @@ +// Boost.Signals2 library + +// Copyright Frank Mori Hess 2007-2008. +// Copyright Timmo Stange 2007. +// Copyright Douglas Gregor 2001-2004. Use, modification and +// distribution is subject to 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) + +// For more information, see http://www.boost.org + +#ifndef BOOST_SIGNALS2_TRACKED_OBJECTS_VISITOR_HPP +#define BOOST_SIGNALS2_TRACKED_OBJECTS_VISITOR_HPP + +#include <boost/mpl/bool.hpp> +#include <boost/ref.hpp> +#include <boost/signals2/detail/signals_common.hpp> +#include <boost/signals2/slot_base.hpp> +#include <boost/signals2/trackable.hpp> +#include <boost/type_traits/is_function.hpp> +#include <boost/type_traits/is_pointer.hpp> +#include <boost/type_traits/remove_pointer.hpp> +#include <boost/utility/addressof.hpp> + +namespace boost +{ + namespace signals2 + { + namespace detail + { + // Visitor to collect tracked objects from a bound function. + class tracked_objects_visitor + { + public: + tracked_objects_visitor(slot_base *slot) : slot_(slot) + {} + template<typename T> + void operator()(const T& t) const + { + m_visit_reference_wrapper(t, mpl::bool_<is_reference_wrapper<T>::value>()); + } + private: + template<typename T> + void m_visit_reference_wrapper(const reference_wrapper<T> &t, const mpl::bool_<true> &) const + { + m_visit_pointer(t.get_pointer(), mpl::bool_<true>()); + } + template<typename T> + void m_visit_reference_wrapper(const T &t, const mpl::bool_<false> &) const + { + m_visit_pointer(t, mpl::bool_<is_pointer<T>::value>()); + } + template<typename T> + void m_visit_pointer(const T &t, const mpl::bool_<true> &) const + { + m_visit_not_function_pointer(t, mpl::bool_<!is_function<typename remove_pointer<T>::type>::value>()); + } + template<typename T> + void m_visit_pointer(const T &t, const mpl::bool_<false> &) const + { + m_visit_pointer(boost::addressof(t), mpl::bool_<true>()); + } + template<typename T> + void m_visit_not_function_pointer(const T *t, const mpl::bool_<true> &) const + { + m_visit_signal(t, mpl::bool_<is_signal<T>::value>()); + } + template<typename T> + void m_visit_not_function_pointer(const T &, const mpl::bool_<false> &) const + {} + template<typename T> + void m_visit_signal(const T *signal, const mpl::bool_<true> &) const + { + if(signal) + slot_->track_signal(*signal); + } + template<typename T> + void m_visit_signal(const T &t, const mpl::bool_<false> &) const + { + add_if_trackable(t); + } + void add_if_trackable(const trackable *trackable) const + { + if(trackable) + slot_->_tracked_objects.push_back(trackable->get_shared_ptr()); + } + void add_if_trackable(const void *) const {} + + mutable slot_base * slot_; + }; + + + } // end namespace detail + } // end namespace signals2 +} // end namespace boost + +#endif // BOOST_SIGNALS2_TRACKED_OBJECTS_VISITOR_HPP + |