106 lines
3.9 KiB
Plaintext
106 lines
3.9 KiB
Plaintext
/////////////////////////////////////////////////////////////////////////////
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//
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// (C) Copyright Ion Gaztanaga 2014-2014
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//
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// Distributed under the Boost Software License, Version 1.0.
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// (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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//
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// See http://www.boost.org/libs/intrusive for documentation.
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//
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/////////////////////////////////////////////////////////////////////////////
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#ifndef BOOST_INTRUSIVE_DETAIL_NODE_CLONER_DISPOSER_HPP
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#define BOOST_INTRUSIVE_DETAIL_NODE_CLONER_DISPOSER_HPP
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#ifndef BOOST_CONFIG_HPP
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# include <boost/config.hpp>
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#endif
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#if defined(BOOST_HAS_PRAGMA_ONCE)
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# pragma once
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#endif
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#include <boost/intrusive/link_mode.hpp>
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#include <boost/intrusive/detail/mpl.hpp>
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#include <boost/intrusive/detail/ebo_functor_holder.hpp>
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#include <boost/intrusive/detail/algo_type.hpp>
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#include <boost/intrusive/detail/assert.hpp>
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namespace boost {
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namespace intrusive {
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namespace detail {
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template<class F, class ValueTraits, algo_types AlgoType, bool IsConst = true>
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struct node_cloner
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//Use public inheritance to avoid MSVC bugs with closures
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: public ebo_functor_holder<F>
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{
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typedef ValueTraits value_traits;
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typedef typename value_traits::node_traits node_traits;
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typedef typename node_traits::node_ptr node_ptr;
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typedef ebo_functor_holder<F> base_t;
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typedef typename get_algo< AlgoType
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, node_traits>::type node_algorithms;
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static const bool safemode_or_autounlink =
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is_safe_autounlink<value_traits::link_mode>::value;
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typedef typename value_traits::value_type value_type;
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typedef typename value_traits::pointer pointer;
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typedef typename value_traits::const_pointer const_pointer;
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typedef typename node_traits::node node;
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typedef typename value_traits::const_node_ptr const_node_ptr;
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typedef typename pointer_traits<pointer>::reference reference;
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typedef typename pointer_traits
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<const_pointer>::reference const_reference;
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typedef typename if_c<IsConst, const_reference, reference>::type reference_type;
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node_cloner(F f, const ValueTraits *traits)
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: base_t(f), traits_(traits)
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{}
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// tree-based containers use this method, which is proxy-reference friendly
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node_ptr operator()(const node_ptr & p)
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{
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reference_type v = *traits_->to_value_ptr(p);
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node_ptr n = traits_->to_node_ptr(*base_t::get()(v));
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//Cloned node must be in default mode if the linking mode requires it
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BOOST_INTRUSIVE_SAFE_HOOK_DEFAULT_ASSERT(!safemode_or_autounlink || node_algorithms::unique(n));
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return n;
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}
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const ValueTraits * const traits_;
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};
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template<class F, class ValueTraits, algo_types AlgoType>
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struct node_disposer
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//Use public inheritance to avoid MSVC bugs with closures
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: public ebo_functor_holder<F>
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{
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typedef ValueTraits value_traits;
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typedef typename value_traits::node_traits node_traits;
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typedef typename node_traits::node_ptr node_ptr;
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typedef ebo_functor_holder<F> base_t;
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typedef typename get_algo< AlgoType
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, node_traits>::type node_algorithms;
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static const bool safemode_or_autounlink =
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is_safe_autounlink<value_traits::link_mode>::value;
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node_disposer(F f, const ValueTraits *cont)
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: base_t(f), traits_(cont)
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{}
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void operator()(const node_ptr & p)
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{
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if(safemode_or_autounlink)
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node_algorithms::init(p);
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base_t::get()(traits_->to_value_ptr(p));
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}
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const ValueTraits * const traits_;
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};
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} //namespace detail{
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} //namespace intrusive{
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} //namespace boost{
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#endif //BOOST_INTRUSIVE_DETAIL_NODE_CLONER_DISPOSER_HPP
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