238 lines
6.8 KiB
C++
238 lines
6.8 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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// 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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struct labeled_add_vertex_tag : virtual label_vertex_tag { };
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struct labeled_add_vertex_property_tag : virtual labeled_add_vertex_tag { };
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struct labeled_remove_vertex_tag { };
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struct labeled_add_edge_tag : virtual label_vertex_tag { };
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struct labeled_add_edge_property_tag : virtual labeled_add_edge_tag{ };
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struct labeled_remove_edge_tag { };
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struct labeled_mutable_vertex_graph_tag
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: virtual labeled_add_vertex_tag, virtual labeled_remove_vertex_tag
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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, virtual labeled_remove_vertex_tag
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{ };
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struct labeled_mutable_edge_graph_tag
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: virtual labeled_add_edge_tag, virtual labeled_remove_edge_tag
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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, virtual labeled_remove_edge_tag
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{ };
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struct labeled_graph_tag
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: virtual label_vertex_tag
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{ };
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struct labeled_mutable_graph_tag
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: virtual labeled_mutable_vertex_graph_tag
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, virtual labeled_mutable_edge_graph_tag
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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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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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// 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<
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typename graph_mutability_traits<Graph>::category,
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labeled_add_vertex_tag
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>::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<
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typename graph_mutability_traits<Graph>::category,
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labeled_add_vertex_property_tag
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>::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<
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typename graph_mutability_traits<Graph>::category,
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labeled_remove_vertex_tag
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>::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<
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typename graph_mutability_traits<Graph>::category,
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labeled_add_edge_tag
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>::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<
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typename graph_mutability_traits<Graph>::category,
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labeled_add_edge_property_tag
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>::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<
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typename graph_mutability_traits<Graph>::category,
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labeled_remove_edge_tag
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>::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_<
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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_<
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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_<
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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_<
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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_<
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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_<
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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<
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typename graph_mutability_traits<Graph>::category,
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labeled_add_only_property_graph_tag
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>::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<
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typename graph_mutability_traits<Graph>::category,
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label_vertex_tag
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>::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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// 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>
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struct determine_mutability {
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typedef typename mpl::if_<
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is_add_only_property_graph<Graph>,
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labeled_add_only_property_graph_tag,
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typename mpl::if_<
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is_mutable_property_graph<Graph>,
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labeled_mutable_property_graph_tag,
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typename mpl::if_<
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is_mutable_graph<Graph>,
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labeled_mutable_graph_tag,
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typename mpl::if_<
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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
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>::type
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>::type
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>::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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typedef typename graph_detail::determine_mutability<
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typename LABELED_GRAPH::graph_type
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>::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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