discover_rack_app

# File railties/lib/rails/application/route_inspector.rb, line 74
      def discover_rack_app(app)
        class_name = app.class.name.to_s
        if class_name == "ActionDispatch::Routing::Mapper::Constraints"
          discover_rack_app(app.app)
        elsif class_name !~ /^ActionDispatch::Routing/
          app
        end
      end