refactor of turn analysis into turn handlers

src/extractor/guidance/intersection.cpp

@@ -0,0 +1,31 @@
+#include "extractor/guidance/intersection.hpp"
+
+namespace osrm
+{
+namespace extractor
+{
+namespace guidance
+{
+
+ConnectedRoad::ConnectedRoad(const TurnOperation turn, const bool entry_allowed)
+    : entry_allowed(entry_allowed), turn(turn)
+{
+}
+
+std::string toString(const ConnectedRoad &road)
+{
+    std::string result = "[connection] ";
+    result += std::to_string(road.turn.eid);
+    result += " allows entry: ";
+    result += std::to_string(road.entry_allowed);
+    result += " angle: ";
+    result += std::to_string(road.turn.angle);
+    result += " instruction: ";
+    result += std::to_string(static_cast<std::int32_t>(road.turn.instruction.type)) + " " +
+              std::to_string(static_cast<std::int32_t>(road.turn.instruction.direction_modifier));
+    return result;
+}
+
+} // namespace guidance
+} // namespace extractor
+} // namespace osrm