write_recognize_optimized

# File actionpack/lib/action_controller/routing/recognition_optimisation.rb, line 76
      def write_recognize_optimized
        tree = segment_tree(routes)
        body = generate_code(tree)
        instance_eval %{
          def recognize_optimized(path, env)
            segments = to_plain_segments(path)
            index = #{body}
            return nil unless index
            while index < routes.size
              result = routes[index].recognize(path, env) and return result
              index += 1
            end
            nil
          end
        }, __FILE__, __LINE__
      end