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Diffstat (limited to 'boost/intrusive/detail/node_cloner_disposer.hpp')
| -rw-r--r-- | boost/intrusive/detail/node_cloner_disposer.hpp | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/boost/intrusive/detail/node_cloner_disposer.hpp b/boost/intrusive/detail/node_cloner_disposer.hpp new file mode 100644 index 0000000000..2a18100205 --- /dev/null +++ b/boost/intrusive/detail/node_cloner_disposer.hpp @@ -0,0 +1,109 @@ +///////////////////////////////////////////////////////////////////////////// +// +// (C) Copyright Ion Gaztanaga 2014-2014 +// +// 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) +// +// See http://www.boost.org/libs/intrusive for documentation. +// +///////////////////////////////////////////////////////////////////////////// + +#ifndef BOOST_INTRUSIVE_DETAIL_NODE_CLONER_DISPOSER_HPP +#define BOOST_INTRUSIVE_DETAIL_NODE_CLONER_DISPOSER_HPP + +#if defined(_MSC_VER) +# pragma once +#endif + +#include <boost/intrusive/link_mode.hpp> +#include <boost/intrusive/detail/ebo_functor_holder.hpp> +#include <boost/intrusive/detail/algo_type.hpp> +#include <boost/intrusive/detail/assert.hpp> + +namespace boost { +namespace intrusive { +namespace detail { + +template<class F, class ValueTraits, algo_types AlgoType> +struct node_cloner + : private ebo_functor_holder<F> +{ + typedef ValueTraits value_traits; + typedef typename value_traits::node_traits node_traits; + typedef typename node_traits::node_ptr node_ptr; + typedef ebo_functor_holder<F> base_t; + typedef typename get_algo< AlgoType + , node_traits>::type node_algorithms; + static const bool safemode_or_autounlink = + is_safe_autounlink<value_traits::link_mode>::value; + typedef typename value_traits::value_type value_type; + typedef typename value_traits::pointer pointer; + typedef typename node_traits::node node; + typedef typename value_traits::const_node_ptr const_node_ptr; + typedef typename value_traits::reference reference; + typedef typename value_traits::const_reference const_reference; + + node_cloner(F f, const ValueTraits *traits) + : base_t(f), traits_(traits) + {} + + // tree-based containers use this method, which is proxy-reference friendly + node_ptr operator()(const node_ptr & p) + { + const_reference v = *traits_->to_value_ptr(p); + node_ptr n = traits_->to_node_ptr(*base_t::get()(v)); + //Cloned node must be in default mode if the linking mode requires it + if(safemode_or_autounlink) + BOOST_INTRUSIVE_SAFE_HOOK_DEFAULT_ASSERT(node_algorithms::unique(n)); + return n; + } + + // hashtables use this method, which is proxy-reference unfriendly + node_ptr operator()(const node &to_clone) + { + const value_type &v = + *traits_->to_value_ptr + (pointer_traits<const_node_ptr>::pointer_to(to_clone)); + node_ptr n = traits_->to_node_ptr(*base_t::get()(v)); + //Cloned node must be in default mode if the linking mode requires it + if(safemode_or_autounlink) + BOOST_INTRUSIVE_SAFE_HOOK_DEFAULT_ASSERT(node_algorithms::unique(n)); + return n; + } + + const ValueTraits * const traits_; +}; + +template<class F, class ValueTraits, algo_types AlgoType> +struct node_disposer + : private ebo_functor_holder<F> +{ + typedef ValueTraits value_traits; + typedef typename value_traits::node_traits node_traits; + typedef typename node_traits::node_ptr node_ptr; + typedef ebo_functor_holder<F> base_t; + typedef typename get_algo< AlgoType + , node_traits>::type node_algorithms; + static const bool safemode_or_autounlink = + is_safe_autounlink<value_traits::link_mode>::value; + + node_disposer(F f, const ValueTraits *cont) + : base_t(f), traits_(cont) + {} + + void operator()(const node_ptr & p) + { + if(safemode_or_autounlink) + node_algorithms::init(p); + base_t::get()(traits_->to_value_ptr(p)); + } + const ValueTraits * const traits_; +}; + +} //namespace detail{ +} //namespace intrusive{ +} //namespace boost{ + +#endif //BOOST_INTRUSIVE_DETAIL_NODE_CLONER_DISPOSER_HPP |