233 lines
6.5 KiB
C++
233 lines
6.5 KiB
C++
// Copyright (C) 2009 Andrew Sutton
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// Use, modification and distribution is subject to the Boost Software
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// License, Version 1.0. (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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#ifndef BOOST_GRAPH_LABELED_GRAPH_TRAITS_HPP
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#define BOOST_GRAPH_LABELED_GRAPH_TRAITS_HPP
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#include <boost/graph/graph_mutability_traits.hpp>
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namespace boost
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{
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// Extend the graph mutability traits (and metafunctions) to include options
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// for labeled graphs.
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// NOTE: the label_vertex tag denotes the fact that you can basically assign
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// arbitrary labels to vertices without modifying the actual graph.
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// TODO: We might also overlay the uniqueness/multiplicity of labels in this
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// hierarchy also. For now, we just assumed that labels are unique.
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struct label_vertex_tag
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{
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};
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struct labeled_add_vertex_tag : virtual label_vertex_tag
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{
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};
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struct labeled_add_vertex_property_tag : virtual labeled_add_vertex_tag
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{
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};
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struct labeled_remove_vertex_tag
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{
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};
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struct labeled_add_edge_tag : virtual label_vertex_tag
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{
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};
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struct labeled_add_edge_property_tag : virtual labeled_add_edge_tag
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{
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};
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struct labeled_remove_edge_tag
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{
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};
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struct labeled_mutable_vertex_graph_tag : virtual labeled_add_vertex_tag,
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virtual labeled_remove_vertex_tag
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{
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};
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struct labeled_mutable_vertex_property_graph_tag
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: virtual labeled_add_vertex_property_tag,
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virtual labeled_remove_vertex_tag
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{
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};
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struct labeled_mutable_edge_graph_tag : virtual labeled_add_edge_tag,
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virtual labeled_remove_edge_tag
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{
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};
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struct labeled_mutable_edge_property_graph_tag
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: virtual labeled_add_edge_property_tag,
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virtual labeled_remove_edge_tag
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{
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};
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struct labeled_graph_tag : virtual label_vertex_tag
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{
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};
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struct labeled_mutable_graph_tag : virtual labeled_mutable_vertex_graph_tag,
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virtual labeled_mutable_edge_graph_tag
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{
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};
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struct labeled_mutable_property_graph_tag
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: virtual labeled_mutable_vertex_property_graph_tag,
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virtual labeled_mutable_edge_property_graph_tag
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{
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};
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struct labeled_add_only_property_graph_tag
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: virtual labeled_add_vertex_property_tag,
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virtual labeled_mutable_edge_property_graph_tag
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{
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};
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// Metafunctions
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template < typename Graph >
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struct graph_has_add_vertex_by_label
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: mpl::bool_<
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is_convertible< typename graph_mutability_traits< Graph >::category,
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labeled_add_vertex_tag >::value >
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{
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};
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template < typename Graph >
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struct graph_has_add_vertex_by_label_with_property
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: mpl::bool_<
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is_convertible< typename graph_mutability_traits< Graph >::category,
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labeled_add_vertex_property_tag >::value >
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{
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};
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template < typename Graph >
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struct graph_has_remove_vertex_by_label
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: mpl::bool_<
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is_convertible< typename graph_mutability_traits< Graph >::category,
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labeled_remove_vertex_tag >::value >
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{
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};
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template < typename Graph >
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struct graph_has_add_edge_by_label
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: mpl::bool_<
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is_convertible< typename graph_mutability_traits< Graph >::category,
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labeled_add_edge_tag >::value >
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{
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};
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template < typename Graph >
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struct graph_has_add_edge_by_label_with_property
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: mpl::bool_<
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is_convertible< typename graph_mutability_traits< Graph >::category,
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labeled_add_edge_property_tag >::value >
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{
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};
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template < typename Graph >
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struct graph_has_remove_edge_by_label
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: mpl::bool_<
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is_convertible< typename graph_mutability_traits< Graph >::category,
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labeled_remove_edge_tag >::value >
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{
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};
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template < typename Graph >
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struct is_labeled_mutable_vertex_graph
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: mpl::and_< graph_has_add_vertex_by_label< Graph >,
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graph_has_remove_vertex_by_label< Graph > >
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{
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};
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template < typename Graph >
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struct is_labeled_mutable_vertex_property_graph
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: mpl::and_< graph_has_add_vertex_by_label< Graph >,
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graph_has_remove_vertex_by_label< Graph > >
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{
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};
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template < typename Graph >
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struct is_labeled_mutable_edge_graph
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: mpl::and_< graph_has_add_edge_by_label< Graph >,
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graph_has_remove_edge_by_label< Graph > >
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{
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};
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template < typename Graph >
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struct is_labeled_mutable_edge_property_graph
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: mpl::and_< graph_has_add_edge_by_label< Graph >,
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graph_has_remove_edge_by_label< Graph > >
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{
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};
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template < typename Graph >
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struct is_labeled_mutable_graph
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: mpl::and_< is_labeled_mutable_vertex_graph< Graph >,
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is_labeled_mutable_edge_graph< Graph > >
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{
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};
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template < typename Graph >
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struct is_labeled_mutable_property_graph
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: mpl::and_< is_labeled_mutable_vertex_property_graph< Graph >,
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is_labeled_mutable_edge_property_graph< Graph > >
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{
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};
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template < typename Graph >
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struct is_labeled_add_only_property_graph
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: mpl::bool_<
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is_convertible< typename graph_mutability_traits< Graph >::category,
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labeled_add_only_property_graph_tag >::value >
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{
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};
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template < typename Graph >
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struct is_labeled_graph
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: mpl::bool_<
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is_convertible< typename graph_mutability_traits< Graph >::category,
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label_vertex_tag >::value >
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{
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};
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template < typename > struct graph_mutability_traits;
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namespace graph_detail
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{
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// The determine mutability metafunction computes a labeled mutability tag
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// based on the mutability of the given graph type. This is used by the
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// graph_mutability_traits specialization below.
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template < typename Graph > struct determine_mutability
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{
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typedef typename mpl::if_< is_add_only_property_graph< Graph >,
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labeled_add_only_property_graph_tag,
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typename mpl::if_< is_mutable_property_graph< Graph >,
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labeled_mutable_property_graph_tag,
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typename mpl::if_< is_mutable_graph< Graph >,
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labeled_mutable_graph_tag,
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typename mpl::if_< is_mutable_edge_graph< Graph >,
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labeled_graph_tag,
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typename graph_mutability_traits< Graph >::category >::
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type >::type >::type >::type type;
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};
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} // namespace graph_detail
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#define LABELED_GRAPH_PARAMS typename G, typename L, typename S
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#define LABELED_GRAPH labeled_graph< G, L, S >
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// Specialize mutability traits for the labeled graph.
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// This specialization depends on the mutability of the underlying graph type.
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// If the underlying graph is fully mutable, this is also fully mutable.
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// Otherwise, it's different.
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template < LABELED_GRAPH_PARAMS >
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struct graph_mutability_traits< LABELED_GRAPH >
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{
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typedef typename graph_detail::determine_mutability<
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typename LABELED_GRAPH::graph_type >::type category;
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};
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#undef LABELED_GRAPH_PARAMS
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#undef LABELED_GRAPH
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} // namespace boost
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#endif
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