| // Boost.Bimap | |
| // | |
| // Copyright (c) 2006-2007 Matias Capeletto | |
| // | |
| // 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) | |
| /// \file detail/bimap_core.hpp | |
| /// \brief Bimap base definition. | |
| #ifndef BOOST_BIMAP_DETAIL_BIMAP_CORE_HPP | |
| #define BOOST_BIMAP_DETAIL_BIMAP_CORE_HPP | |
| #if defined(_MSC_VER) && (_MSC_VER>=1200) | |
| #pragma once | |
| #endif | |
| #include <boost/config.hpp> | |
| #include <boost/mpl/placeholders.hpp> | |
| #include <boost/mpl/push_front.hpp> | |
| #include <boost/mpl/if.hpp> | |
| #include <boost/mpl/and.hpp> | |
| #include <boost/mpl/not.hpp> | |
| #include <boost/mpl/vector.hpp> | |
| #include <boost/type_traits/add_const.hpp> | |
| #include <boost/type_traits/is_same.hpp> | |
| #include <boost/concept_check.hpp> | |
| // Boost.MultiIndex | |
| #include <boost/multi_index_container.hpp> | |
| #include <boost/multi_index/member.hpp> | |
| // Boost.Bimap | |
| #include <boost/bimap/relation/mutant_relation.hpp> | |
| #include <boost/bimap/relation/member_at.hpp> | |
| #include <boost/bimap/relation/support/data_extractor.hpp> | |
| #include <boost/bimap/tags/support/default_tagged.hpp> | |
| #include <boost/bimap/tags/tagged.hpp> | |
| #include <boost/bimap/detail/manage_bimap_key.hpp> | |
| #include <boost/bimap/detail/manage_additional_parameters.hpp> | |
| #include <boost/bimap/detail/map_view_iterator.hpp> | |
| #include <boost/bimap/detail/set_view_iterator.hpp> | |
| #include <boost/bimap/set_of.hpp> | |
| #include <boost/bimap/unconstrained_set_of.hpp> | |
| namespace boost { | |
| namespace bimaps { | |
| /// \brief Library details | |
| namespace detail { | |
| #ifndef BOOST_BIMAP_DOXYGEN_WILL_NOT_PROCESS_THE_FOLLOWING_LINES | |
| template< class Type > | |
| struct get_value_type | |
| { | |
| typedef BOOST_DEDUCED_TYPENAME Type::value_type type; | |
| }; | |
| struct independent_index_tag {}; | |
| #endif // BOOST_BIMAP_DOXYGEN_WILL_NOT_PROCESS_THE_FOLLOWING_LINES | |
| /// \brief Base for the bimap class. | |
| /** | |
| See also bimap. | |
| **/ | |
| template< class LeftSetType, class RightSetType, class AP1, class AP2, class AP3 > | |
| class bimap_core | |
| { | |
| // Manage bimap key instantiation | |
| // -------------------------------------------------------------------- | |
| public: | |
| typedef BOOST_DEDUCED_TYPENAME manage_bimap_key | |
| < | |
| LeftSetType | |
| >::type left_set_type; | |
| typedef BOOST_DEDUCED_TYPENAME manage_bimap_key | |
| < | |
| RightSetType | |
| >::type right_set_type; | |
| private: | |
| typedef BOOST_DEDUCED_TYPENAME ::boost::bimaps::tags::support::default_tagged | |
| < | |
| BOOST_DEDUCED_TYPENAME left_set_type::user_type, | |
| ::boost::bimaps::relation::member_at::left | |
| >::type left_tagged_type; | |
| typedef BOOST_DEDUCED_TYPENAME ::boost::bimaps::tags::support::default_tagged | |
| < | |
| BOOST_DEDUCED_TYPENAME right_set_type::user_type, | |
| ::boost::bimaps::relation::member_at::right | |
| >::type right_tagged_type; | |
| public: | |
| //@{ | |
| typedef BOOST_DEDUCED_TYPENAME left_tagged_type::tag left_tag; | |
| typedef BOOST_DEDUCED_TYPENAME right_tagged_type::tag right_tag; | |
| //@} | |
| //@{ | |
| typedef BOOST_DEDUCED_TYPENAME left_set_type::value_type left_key_type; | |
| typedef BOOST_DEDUCED_TYPENAME right_set_type::value_type right_key_type; | |
| //@} | |
| //@{ | |
| typedef right_key_type left_data_type; | |
| typedef left_key_type right_data_type; | |
| //@} | |
| // Manage the additional parameters | |
| // -------------------------------------------------------------------- | |
| private: | |
| typedef BOOST_DEDUCED_TYPENAME manage_additional_parameters<AP1,AP2,AP3>::type parameters; | |
| /// \brief Relation type stored by the bimap. | |
| // -------------------------------------------------------------------- | |
| public: | |
| typedef ::boost::bimaps::relation::mutant_relation | |
| < | |
| ::boost::bimaps::tags::tagged< | |
| BOOST_DEDUCED_TYPENAME mpl::if_< | |
| mpl::and_ | |
| < | |
| BOOST_DEDUCED_TYPENAME left_set_type::mutable_key, | |
| BOOST_DEDUCED_TYPENAME parameters::set_type_of_relation::left_mutable_key | |
| >, | |
| // { | |
| left_key_type, | |
| // } | |
| // else | |
| // { | |
| BOOST_DEDUCED_TYPENAME ::boost::add_const< left_key_type >::type | |
| // } | |
| >::type, | |
| left_tag | |
| >, | |
| ::boost::bimaps::tags::tagged< | |
| BOOST_DEDUCED_TYPENAME mpl::if_< | |
| mpl::and_ | |
| < | |
| BOOST_DEDUCED_TYPENAME right_set_type::mutable_key, | |
| BOOST_DEDUCED_TYPENAME parameters::set_type_of_relation::right_mutable_key | |
| >, | |
| // { | |
| right_key_type, | |
| // } | |
| // else | |
| // { | |
| BOOST_DEDUCED_TYPENAME ::boost::add_const< right_key_type >::type | |
| // } | |
| >::type, | |
| right_tag | |
| >, | |
| // It is ::boost::mpl::na if no info_hook was included | |
| BOOST_DEDUCED_TYPENAME parameters::additional_info, | |
| // Force mutable keys | |
| true | |
| > relation; | |
| //@{ | |
| typedef BOOST_DEDUCED_TYPENAME relation::left_pair left_value_type; | |
| typedef BOOST_DEDUCED_TYPENAME relation::right_pair right_value_type; | |
| //@} | |
| // Bind the member of the relation, so multi_index can manage them | |
| // -------------------------------------------------------------------- | |
| private: | |
| typedef BOOST_DEDUCED_TYPENAME relation::storage_base relation_storage_base; | |
| typedef BOOST_MULTI_INDEX_MEMBER(relation_storage_base, left_key_type, left) | |
| left_member_extractor; | |
| typedef BOOST_MULTI_INDEX_MEMBER(relation_storage_base,right_key_type,right) | |
| right_member_extractor; | |
| // The core indices are somewhat complicated to calculate, because they | |
| // can be zero, one, two or three indices, depending on the use of | |
| // {side}_based set type of relations and unconstrained_set_of and | |
| // unconstrained_set_of_relation specifications. | |
| typedef BOOST_DEDUCED_TYPENAME mpl::if_< | |
| ::boost::bimaps::detail::is_unconstrained_set_of< left_set_type >, | |
| // { | |
| mpl::vector<>, | |
| // } | |
| // else | |
| // { | |
| mpl::vector | |
| < | |
| BOOST_DEDUCED_TYPENAME left_set_type:: | |
| BOOST_NESTED_TEMPLATE index_bind | |
| < | |
| left_member_extractor, | |
| left_tag | |
| >::type | |
| > | |
| // } | |
| >::type left_core_indices; | |
| typedef BOOST_DEDUCED_TYPENAME mpl::if_< | |
| ::boost::bimaps::detail::is_unconstrained_set_of< right_set_type >, | |
| // { | |
| left_core_indices, | |
| // } | |
| // else | |
| // { | |
| BOOST_DEDUCED_TYPENAME mpl::push_front | |
| < | |
| left_core_indices, | |
| BOOST_DEDUCED_TYPENAME right_set_type:: | |
| BOOST_NESTED_TEMPLATE index_bind | |
| < | |
| right_member_extractor, | |
| right_tag | |
| >::type | |
| >::type | |
| // } | |
| >::type basic_core_indices; | |
| // If it is based either on the left or on the right, then only the side | |
| // indices are needed. But the set type of the relation can be completely | |
| // diferent from the one used for the sides in wich case we have to add yet | |
| // another index to the core. | |
| // TODO | |
| // If all the set types are unsconstrained there must be readable compile | |
| // time error. | |
| typedef BOOST_DEDUCED_TYPENAME mpl::if_< | |
| is_same< BOOST_DEDUCED_TYPENAME parameters::set_type_of_relation, left_based >, | |
| // { | |
| ::boost::bimaps::tags::tagged< left_set_type, left_tag >, | |
| // } | |
| /* else */ BOOST_DEDUCED_TYPENAME mpl::if_< | |
| is_same< BOOST_DEDUCED_TYPENAME parameters::set_type_of_relation, right_based >, | |
| // { | |
| ::boost::bimaps::tags::tagged< right_set_type, right_tag >, | |
| // } | |
| // else | |
| // { | |
| tags::tagged | |
| < | |
| BOOST_DEDUCED_TYPENAME parameters:: | |
| set_type_of_relation::BOOST_NESTED_TEMPLATE bind_to | |
| < | |
| relation | |
| >::type, | |
| independent_index_tag | |
| > | |
| // } | |
| >::type | |
| >::type tagged_set_of_relation_type; | |
| protected: | |
| typedef BOOST_DEDUCED_TYPENAME tagged_set_of_relation_type::tag | |
| relation_set_tag; | |
| typedef BOOST_DEDUCED_TYPENAME tagged_set_of_relation_type::value_type | |
| relation_set_type_of; | |
| // Logic tags | |
| // This is a necesary extra level of indirection to allow unconstrained | |
| // sets to be plug in the design. The bimap constructors use this logic | |
| // tags. | |
| typedef BOOST_DEDUCED_TYPENAME mpl::if_< | |
| ::boost::bimaps::detail::is_unconstrained_set_of< left_set_type >, | |
| BOOST_DEDUCED_TYPENAME mpl::if_< | |
| ::boost::bimaps::detail::is_unconstrained_set_of< right_set_type >, | |
| independent_index_tag, | |
| right_tag | |
| >::type, | |
| left_tag | |
| >::type logic_left_tag; | |
| typedef BOOST_DEDUCED_TYPENAME mpl::if_< | |
| ::boost::bimaps::detail::is_unconstrained_set_of< right_set_type >, | |
| BOOST_DEDUCED_TYPENAME mpl::if_< | |
| ::boost::bimaps::detail::is_unconstrained_set_of< left_set_type >, | |
| independent_index_tag, | |
| left_tag | |
| >::type, | |
| right_tag | |
| >::type logic_right_tag; | |
| typedef BOOST_DEDUCED_TYPENAME mpl::if_< | |
| is_same< relation_set_tag, independent_index_tag >, | |
| BOOST_DEDUCED_TYPENAME mpl::if_< | |
| ::boost::bimaps::detail:: | |
| is_unconstrained_set_of< relation_set_type_of >, | |
| logic_left_tag, | |
| independent_index_tag | |
| >::type, | |
| BOOST_DEDUCED_TYPENAME mpl::if_< | |
| is_same< BOOST_DEDUCED_TYPENAME parameters::set_type_of_relation, left_based >, | |
| logic_left_tag, | |
| logic_right_tag | |
| >::type | |
| >::type logic_relation_set_tag; | |
| private: | |
| typedef BOOST_DEDUCED_TYPENAME mpl::if_< | |
| mpl::and_< is_same< relation_set_tag, independent_index_tag >, | |
| mpl::not_< | |
| ::boost::bimaps::detail:: | |
| is_unconstrained_set_of< relation_set_type_of > | |
| > | |
| >, | |
| // { | |
| BOOST_DEDUCED_TYPENAME mpl::push_front | |
| < | |
| basic_core_indices, | |
| BOOST_DEDUCED_TYPENAME relation_set_type_of:: | |
| BOOST_NESTED_TEMPLATE index_bind | |
| < | |
| ::boost::bimaps::relation::support::both_keys_extractor<relation>, | |
| independent_index_tag | |
| >::type | |
| >::type, | |
| // } | |
| // else | |
| // { | |
| basic_core_indices | |
| // } | |
| >::type complete_core_indices; | |
| struct core_indices : public complete_core_indices {}; | |
| // Define the core using compute_index_type to translate the | |
| // set type to an multi-index specification | |
| // -------------------------------------------------------------------- | |
| public: | |
| typedef multi_index::multi_index_container | |
| < | |
| relation, | |
| core_indices, | |
| BOOST_DEDUCED_TYPENAME parameters::allocator:: | |
| BOOST_NESTED_TEMPLATE rebind<relation>::other | |
| > core_type; | |
| // Core metadata | |
| // -------------------------------------------------------------------- | |
| public: | |
| typedef BOOST_DEDUCED_TYPENAME ::boost::multi_index:: | |
| index<core_type, logic_left_tag>::type left_index; | |
| typedef BOOST_DEDUCED_TYPENAME ::boost::multi_index:: | |
| index<core_type,logic_right_tag>::type right_index; | |
| typedef BOOST_DEDUCED_TYPENAME left_index::iterator left_core_iterator; | |
| typedef BOOST_DEDUCED_TYPENAME left_index::const_iterator left_core_const_iterator; | |
| typedef BOOST_DEDUCED_TYPENAME right_index::iterator right_core_iterator; | |
| typedef BOOST_DEDUCED_TYPENAME right_index::const_iterator right_core_const_iterator; | |
| // Map by {side} iterator metadata | |
| // -------------------------------------------------------------------- | |
| public: | |
| //@{ | |
| typedef ::boost::bimaps::detail::map_view_iterator | |
| < | |
| left_tag, | |
| relation, | |
| left_core_iterator | |
| > left_iterator; | |
| typedef ::boost::bimaps::detail::map_view_iterator | |
| < | |
| right_tag, | |
| relation, | |
| right_core_iterator | |
| > right_iterator; | |
| //@} | |
| //@{ | |
| typedef ::boost::bimaps::detail::const_map_view_iterator | |
| < | |
| left_tag, | |
| relation, | |
| left_core_const_iterator | |
| > left_const_iterator; | |
| typedef ::boost::bimaps::detail::const_map_view_iterator | |
| < | |
| right_tag, | |
| relation, | |
| right_core_const_iterator | |
| > right_const_iterator; | |
| //@} | |
| // Relation set view | |
| typedef BOOST_DEDUCED_TYPENAME ::boost::multi_index::index | |
| < | |
| core_type, logic_relation_set_tag | |
| >::type relation_set_core_index; | |
| typedef BOOST_DEDUCED_TYPENAME relation_set_type_of:: | |
| BOOST_NESTED_TEMPLATE set_view_bind | |
| < | |
| relation_set_core_index | |
| >::type relation_set; | |
| public: | |
| typedef bimap_core bimap_core_; | |
| }; | |
| // Two auxiliar metafunctions to compute the map view types | |
| // The map view type can not be computed inside the bimap core because a | |
| // they need the bimap core to be parsed first. | |
| template< class BimapBaseType > | |
| struct left_map_view_type | |
| { | |
| typedef BOOST_DEDUCED_TYPENAME BimapBaseType::left_set_type left_set_type; | |
| typedef BOOST_DEDUCED_TYPENAME | |
| left_set_type::BOOST_NESTED_TEMPLATE map_view_bind< | |
| BOOST_DEDUCED_TYPENAME BimapBaseType::left_tag, BimapBaseType | |
| >::type type; | |
| }; | |
| template< class BimapBaseType > | |
| struct right_map_view_type | |
| { | |
| typedef BOOST_DEDUCED_TYPENAME BimapBaseType::right_set_type right_set_type; | |
| typedef BOOST_DEDUCED_TYPENAME | |
| right_set_type::BOOST_NESTED_TEMPLATE map_view_bind< | |
| BOOST_DEDUCED_TYPENAME BimapBaseType::right_tag, BimapBaseType | |
| >::type type; | |
| }; | |
| } // namespace detail | |
| } // namespace bimaps | |
| } // namespace boost | |
| #endif // BOOST_BIMAP_DETAIL_BIMAP_CORE_HPP |