boost/intrusive/detail/hook_traits.hpp
/////////////////////////////////////////////////////////////////////////////
//
// (C) Copyright Ion Gaztanaga 2006-2014
//
// 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_HOOK_TRAITS_HPP
#define BOOST_INTRUSIVE_DETAIL_HOOK_TRAITS_HPP
#ifndef BOOST_CONFIG_HPP
# include <boost/config.hpp>
#endif
#if defined(BOOST_HAS_PRAGMA_ONCE)
# pragma once
#endif
#include <boost/intrusive/detail/workaround.hpp>
#include <boost/intrusive/pointer_traits.hpp>
#include <boost/intrusive/detail/parent_from_member.hpp>
#include <boost/intrusive/link_mode.hpp>
#include <boost/intrusive/detail/mpl.hpp>
#include <boost/move/detail/to_raw_pointer.hpp>
#include <boost/intrusive/detail/node_holder.hpp>
namespace boost {
namespace intrusive {
template<class T, class NodePtr, class Tag, unsigned int Type>
struct bhtraits_base
{
public:
typedef NodePtr node_ptr;
typedef typename pointer_traits<node_ptr>::element_type node;
typedef node_holder<node, Tag, Type> node_holder_type;
typedef T value_type;
typedef typename pointer_traits<node_ptr>::
template rebind_pointer<const node>::type const_node_ptr;
typedef typename pointer_traits<node_ptr>::
template rebind_pointer<T>::type pointer;
typedef typename pointer_traits<node_ptr>::
template rebind_pointer<const T>::type const_pointer;
//typedef typename pointer_traits<pointer>::reference reference;
//typedef typename pointer_traits<const_pointer>::reference const_reference;
typedef T & reference;
typedef const T & const_reference;
typedef node_holder_type & node_holder_reference;
typedef const node_holder_type & const_node_holder_reference;
typedef node& node_reference;
typedef const node & const_node_reference;
BOOST_INTRUSIVE_FORCEINLINE static pointer to_value_ptr(const node_ptr & n)
{
pointer p = pointer_traits<pointer>::pointer_to
(static_cast<reference>(static_cast<node_holder_reference>(*n)));
BOOST_ASSERT(!!p);
return p;
}
BOOST_INTRUSIVE_FORCEINLINE static const_pointer to_value_ptr(const const_node_ptr & n)
{
const_pointer p = pointer_traits<const_pointer>::pointer_to
(static_cast<const_reference>(static_cast<const_node_holder_reference>(*n)));
BOOST_ASSERT(!!p);
return p;
}
BOOST_INTRUSIVE_FORCEINLINE static node_ptr to_node_ptr(reference value)
{
node_ptr p = pointer_traits<node_ptr>::pointer_to
(static_cast<node_reference>(static_cast<node_holder_reference>(value)));
BOOST_ASSERT(!!p);
return p;
}
BOOST_INTRUSIVE_FORCEINLINE static const_node_ptr to_node_ptr(const_reference value)
{
const_node_ptr p = pointer_traits<const_node_ptr>::pointer_to
(static_cast<const_node_reference>(static_cast<const_node_holder_reference>(value)));
BOOST_ASSERT(!!p);
return p;
}
};
template<class T, class NodeTraits, link_mode_type LinkMode, class Tag, unsigned int Type>
struct bhtraits
: public bhtraits_base<T, typename NodeTraits::node_ptr, Tag, Type>
{
static const link_mode_type link_mode = LinkMode;
typedef NodeTraits node_traits;
};
template<class T, class Hook, Hook T::* P>
struct mhtraits
{
public:
typedef Hook hook_type;
typedef typename hook_type::hooktags::node_traits node_traits;
typedef typename node_traits::node node;
typedef T value_type;
typedef typename node_traits::node_ptr node_ptr;
typedef typename node_traits::const_node_ptr const_node_ptr;
typedef typename pointer_traits<node_ptr>::
template rebind_pointer<T>::type pointer;
typedef typename pointer_traits<node_ptr>::
template rebind_pointer<const T>::type const_pointer;
typedef T & reference;
typedef const T & const_reference;
typedef node& node_reference;
typedef const node & const_node_reference;
typedef hook_type& hook_reference;
typedef const hook_type & const_hook_reference;
static const link_mode_type link_mode = Hook::hooktags::link_mode;
BOOST_INTRUSIVE_FORCEINLINE static node_ptr to_node_ptr(reference value)
{
return pointer_traits<node_ptr>::pointer_to
(static_cast<node_reference>(static_cast<hook_reference>(value.*P)));
}
BOOST_INTRUSIVE_FORCEINLINE static const_node_ptr to_node_ptr(const_reference value)
{
return pointer_traits<const_node_ptr>::pointer_to
(static_cast<const_node_reference>(static_cast<const_hook_reference>(value.*P)));
}
BOOST_INTRUSIVE_FORCEINLINE static pointer to_value_ptr(const node_ptr & n)
{
return pointer_traits<pointer>::pointer_to
(*detail::parent_from_member<T, Hook>
(static_cast<Hook*>(boost::movelib::to_raw_pointer(n)), P));
}
BOOST_INTRUSIVE_FORCEINLINE static const_pointer to_value_ptr(const const_node_ptr & n)
{
return pointer_traits<const_pointer>::pointer_to
(*detail::parent_from_member<T, Hook>
(static_cast<const Hook*>(boost::movelib::to_raw_pointer(n)), P));
}
};
template<class Functor>
struct fhtraits
{
public:
typedef typename Functor::hook_type hook_type;
typedef typename Functor::hook_ptr hook_ptr;
typedef typename Functor::const_hook_ptr const_hook_ptr;
typedef typename hook_type::hooktags::node_traits node_traits;
typedef typename node_traits::node node;
typedef typename Functor::value_type value_type;
typedef typename node_traits::node_ptr node_ptr;
typedef typename node_traits::const_node_ptr const_node_ptr;
typedef typename pointer_traits<node_ptr>::
template rebind_pointer<value_type>::type pointer;
typedef typename pointer_traits<node_ptr>::
template rebind_pointer<const value_type>::type const_pointer;
typedef value_type & reference;
typedef const value_type & const_reference;
static const link_mode_type link_mode = hook_type::hooktags::link_mode;
static node_ptr to_node_ptr(reference value)
{ return static_cast<node*>(boost::movelib::to_raw_pointer(Functor::to_hook_ptr(value))); }
static const_node_ptr to_node_ptr(const_reference value)
{ return static_cast<const node*>(boost::movelib::to_raw_pointer(Functor::to_hook_ptr(value))); }
static pointer to_value_ptr(const node_ptr & n)
{ return Functor::to_value_ptr(to_hook_ptr(n)); }
static const_pointer to_value_ptr(const const_node_ptr & n)
{ return Functor::to_value_ptr(to_hook_ptr(n)); }
private:
static hook_ptr to_hook_ptr(const node_ptr & n)
{ return hook_ptr(&*static_cast<hook_type*>(&*n)); }
static const_hook_ptr to_hook_ptr(const const_node_ptr & n)
{ return const_hook_ptr(&*static_cast<const hook_type*>(&*n)); }
};
} //namespace intrusive
} //namespace boost
#endif //BOOST_INTRUSIVE_DETAIL_HOOK_TRAITS_HPP