Use immutable node-based-graph for segregated edges.

include/extractor/edge_based_graph_factory.hpp

@@ -75,6 +75,7 @@ class EdgeBasedGraphFactory
                                    const std::unordered_set<NodeID> &traffic_lights,
                                    const std::vector<util::Coordinate> &coordinates,
                                    const util::NameTable &name_table,
+                                   const std::unordered_set<EdgeID> &segregated_edges,
                                    guidance::LaneDescriptionMap &lane_description_map);
 
     void Run(ScriptingEnvironment &scripting_environment,
@@ -157,6 +158,7 @@ class EdgeBasedGraphFactory
     const CompressedEdgeContainer &m_compressed_edge_container;
 
     const util::NameTable &name_table;
+    const std::unordered_set<EdgeID> &segregated_edges;
     guidance::LaneDescriptionMap &lane_description_map;
 
     // In the edge based graph, any traversable (non reversed) edge of the node-based graph forms a

include/extractor/extractor.hpp

@@ -72,6 +72,7 @@ class Extractor
         const std::unordered_set<NodeID> &traffic_lights,
         const std::vector<TurnRestriction> &turn_restrictions,
         const std::vector<ConditionalTurnRestriction> &conditional_turn_restrictions,
+        const std::unordered_set<EdgeID> &segregated_edges,
         // might have to be updated to add new lane combinations
         guidance::LaneDescriptionMap &turn_lane_map,
         // for calculating turn penalties
@@ -102,7 +103,7 @@ class Extractor
         const std::string &path,
         std::vector<ConditionalTurnRestriction> &conditional_turn_restrictions);
 
-    size_t FindSegregatedNodes(NodeBasedGraphFactory &factory);
+    std::unordered_set<EdgeID> FindSegregatedNodes(NodeBasedGraphFactory &factory);
 };
 }
 }

include/extractor/node_based_graph_factory.hpp

@@ -41,7 +41,7 @@ class NodeBasedGraphFactory
                           std::vector<TurnRestriction> &turn_restrictions,
                           std::vector<ConditionalTurnRestriction> &conditional_turn_restrictions);
 
-    auto &GetGraph() { return compressed_output_graph; }
+    auto const &GetGraph() { return compressed_output_graph; }
     auto const &GetBarriers() const { return barriers; }
     auto const &GetTrafficSignals() const { return traffic_signals; }
     auto &GetCompressedEdges() { return compressed_edge_container; }