294 lines
9.0 KiB
Plaintext
294 lines
9.0 KiB
Plaintext
/* Copyright 2003-2014 Joaquin M Lopez Munoz.
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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/multi_index for library home page.
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*/
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#ifndef BOOST_MULTI_INDEX_DETAIL_INDEX_BASE_HPP
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#define BOOST_MULTI_INDEX_DETAIL_INDEX_BASE_HPP
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#if defined(_MSC_VER)
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#pragma once
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#endif
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#include <boost/config.hpp> /* keep it first to prevent nasty warns in MSVC */
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#include <boost/detail/allocator_utilities.hpp>
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#include <boost/detail/no_exceptions_support.hpp>
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#include <boost/detail/workaround.hpp>
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#include <boost/move/core.hpp>
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#include <boost/move/utility.hpp>
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#include <boost/mpl/vector.hpp>
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#include <boost/multi_index/detail/copy_map.hpp>
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#include <boost/multi_index/detail/do_not_copy_elements_tag.hpp>
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#include <boost/multi_index/detail/node_type.hpp>
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#include <boost/multi_index/detail/vartempl_support.hpp>
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#include <boost/multi_index_container_fwd.hpp>
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#include <boost/tuple/tuple.hpp>
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#include <utility>
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#if !defined(BOOST_MULTI_INDEX_DISABLE_SERIALIZATION)
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#include <boost/multi_index/detail/index_loader.hpp>
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#include <boost/multi_index/detail/index_saver.hpp>
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#endif
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namespace boost{
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namespace multi_index{
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namespace detail{
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/* The role of this class is threefold:
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* - tops the linear hierarchy of indices.
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* - terminates some cascading backbone function calls (insert_, etc.),
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* - grants access to the backbone functions of the final
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* multi_index_container class (for access restriction reasons, these
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* cannot be called directly from the index classes.)
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*/
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struct lvalue_tag{};
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struct rvalue_tag{};
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struct emplaced_tag{};
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template<typename Value,typename IndexSpecifierList,typename Allocator>
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class index_base
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{
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protected:
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typedef index_node_base<Value,Allocator> node_type;
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typedef typename multi_index_node_type<
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Value,IndexSpecifierList,Allocator>::type final_node_type;
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typedef multi_index_container<
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Value,IndexSpecifierList,Allocator> final_type;
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typedef tuples::null_type ctor_args_list;
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typedef typename
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boost::detail::allocator::rebind_to<
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Allocator,
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typename Allocator::value_type
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>::type final_allocator_type;
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typedef mpl::vector0<> index_type_list;
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typedef mpl::vector0<> iterator_type_list;
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typedef mpl::vector0<> const_iterator_type_list;
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typedef copy_map<
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final_node_type,
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final_allocator_type> copy_map_type;
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#if !defined(BOOST_MULTI_INDEX_DISABLE_SERIALIZATION)
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typedef index_saver<
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node_type,
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final_allocator_type> index_saver_type;
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typedef index_loader<
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node_type,
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final_node_type,
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final_allocator_type> index_loader_type;
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#endif
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private:
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typedef Value value_type;
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protected:
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explicit index_base(const ctor_args_list&,const Allocator&){}
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index_base(
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const index_base<Value,IndexSpecifierList,Allocator>&,
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do_not_copy_elements_tag)
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{}
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void copy_(
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const index_base<Value,IndexSpecifierList,Allocator>&,const copy_map_type&)
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{}
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final_node_type* insert_(const value_type& v,final_node_type*& x,lvalue_tag)
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{
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x=final().allocate_node();
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BOOST_TRY{
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boost::detail::allocator::construct(&x->value(),v);
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}
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BOOST_CATCH(...){
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final().deallocate_node(x);
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BOOST_RETHROW;
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}
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BOOST_CATCH_END
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return x;
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}
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final_node_type* insert_(const value_type& v,final_node_type*& x,rvalue_tag)
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{
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x=final().allocate_node();
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BOOST_TRY{
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/* This shoud have used a modified, T&&-compatible version of
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* boost::detail::allocator::construct, but
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* <boost/detail/allocator_utilities.hpp> is too old and venerable to
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* mess with; besides, it is a general internal utility and the imperfect
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* perfect forwarding emulation of Boost.Move might break other libs.
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*/
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new (&x->value()) value_type(boost::move(const_cast<value_type&>(v)));
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}
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BOOST_CATCH(...){
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final().deallocate_node(x);
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BOOST_RETHROW;
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}
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BOOST_CATCH_END
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return x;
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}
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final_node_type* insert_(const value_type&,final_node_type*& x,emplaced_tag)
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{
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return x;
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}
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final_node_type* insert_(
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const value_type& v,node_type*,final_node_type*& x,lvalue_tag)
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{
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return insert_(v,x,lvalue_tag());
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}
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final_node_type* insert_(
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const value_type& v,node_type*,final_node_type*& x,rvalue_tag)
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{
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return insert_(v,x,rvalue_tag());
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}
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final_node_type* insert_(
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const value_type&,node_type*,final_node_type*& x,emplaced_tag)
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{
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return x;
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}
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void erase_(node_type* x)
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{
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boost::detail::allocator::destroy(&x->value());
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}
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void delete_node_(node_type* x)
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{
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boost::detail::allocator::destroy(&x->value());
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}
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void clear_(){}
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void swap_(index_base<Value,IndexSpecifierList,Allocator>&){}
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void swap_elements_(index_base<Value,IndexSpecifierList,Allocator>&){}
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bool replace_(const value_type& v,node_type* x,lvalue_tag)
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{
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x->value()=v;
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return true;
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}
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bool replace_(const value_type& v,node_type* x,rvalue_tag)
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{
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x->value()=boost::move(const_cast<value_type&>(v));
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return true;
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}
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bool modify_(node_type*){return true;}
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bool modify_rollback_(node_type*){return true;}
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#if !defined(BOOST_MULTI_INDEX_DISABLE_SERIALIZATION)
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/* serialization */
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template<typename Archive>
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void save_(Archive&,const unsigned int,const index_saver_type&)const{}
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template<typename Archive>
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void load_(Archive&,const unsigned int,const index_loader_type&){}
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#endif
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#if defined(BOOST_MULTI_INDEX_ENABLE_INVARIANT_CHECKING)
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/* invariant stuff */
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bool invariant_()const{return true;}
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#endif
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/* access to backbone memfuns of Final class */
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final_type& final(){return *static_cast<final_type*>(this);}
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const final_type& final()const{return *static_cast<const final_type*>(this);}
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final_node_type* final_header()const{return final().header();}
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bool final_empty_()const{return final().empty_();}
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std::size_t final_size_()const{return final().size_();}
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std::size_t final_max_size_()const{return final().max_size_();}
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std::pair<final_node_type*,bool> final_insert_(const value_type& x)
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{return final().insert_(x);}
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std::pair<final_node_type*,bool> final_insert_rv_(const value_type& x)
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{return final().insert_rv_(x);}
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template<typename T>
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std::pair<final_node_type*,bool> final_insert_ref_(const T& t)
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{return final().insert_ref_(t);}
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template<typename T>
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std::pair<final_node_type*,bool> final_insert_ref_(T& t)
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{return final().insert_ref_(t);}
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template<BOOST_MULTI_INDEX_TEMPLATE_PARAM_PACK>
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std::pair<final_node_type*,bool> final_emplace_(
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BOOST_MULTI_INDEX_FUNCTION_PARAM_PACK)
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{
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return final().emplace_(BOOST_MULTI_INDEX_FORWARD_PARAM_PACK);
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}
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std::pair<final_node_type*,bool> final_insert_(
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const value_type& x,final_node_type* position)
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{return final().insert_(x,position);}
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std::pair<final_node_type*,bool> final_insert_rv_(
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const value_type& x,final_node_type* position)
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{return final().insert_rv_(x,position);}
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template<typename T>
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std::pair<final_node_type*,bool> final_insert_ref_(
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const T& t,final_node_type* position)
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{return final().insert_ref_(t,position);}
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template<typename T>
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std::pair<final_node_type*,bool> final_insert_ref_(
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T& t,final_node_type* position)
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{return final().insert_ref_(t,position);}
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template<BOOST_MULTI_INDEX_TEMPLATE_PARAM_PACK>
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std::pair<final_node_type*,bool> final_emplace_hint_(
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final_node_type* position,BOOST_MULTI_INDEX_FUNCTION_PARAM_PACK)
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{
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return final().emplace_hint_(
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position,BOOST_MULTI_INDEX_FORWARD_PARAM_PACK);
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}
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void final_erase_(final_node_type* x){final().erase_(x);}
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void final_delete_node_(final_node_type* x){final().delete_node_(x);}
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void final_delete_all_nodes_(){final().delete_all_nodes_();}
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void final_clear_(){final().clear_();}
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void final_swap_(final_type& x){final().swap_(x);}
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bool final_replace_(
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const value_type& k,final_node_type* x)
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{return final().replace_(k,x);}
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bool final_replace_rv_(
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const value_type& k,final_node_type* x)
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{return final().replace_rv_(k,x);}
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template<typename Modifier>
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bool final_modify_(Modifier& mod,final_node_type* x)
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{return final().modify_(mod,x);}
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template<typename Modifier,typename Rollback>
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bool final_modify_(Modifier& mod,Rollback& back,final_node_type* x)
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{return final().modify_(mod,back,x);}
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#if defined(BOOST_MULTI_INDEX_ENABLE_INVARIANT_CHECKING)
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void final_check_invariant_()const{final().check_invariant_();}
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#endif
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};
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} /* namespace multi_index::detail */
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} /* namespace multi_index */
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} /* namespace boost */
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#endif
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