namespace Drupal\Core\Routing\Enhancer;
-use Symfony\Cmf\Component\Routing\Enhancer\RouteEnhancerInterface as BaseRouteEnhancerInterface;
+use Drupal\Core\Routing\EnhancerInterface;
use Symfony\Component\Routing\Route;
+@trigger_error('\Drupal\Core\Routing\Enhancer\RouteEnhancerInterface is deprecated in Drupal 8.5.0 and will be removed before Drupal 9.0.0. Instead, you should use \Drupal\Core\Routing\EnhancerInterface. See https://www.drupal.org/node/2894934', E_USER_DEPRECATED);
+
/**
* A route enhance service to determine route enhance rules.
+ *
+ * @deprecated in Drupal 8.4.0 and will be removed before Drupal 9.0.0. Instead,
+ * you should use \Drupal\Core\Routing\EnhancerInterface.
+ * See https://www.drupal.org/node/2894934
+ * Part of the deprecation means that applies() is now called on runtime instead
+ * of compile time.
*/
-interface RouteEnhancerInterface extends BaseRouteEnhancerInterface {
+interface RouteEnhancerInterface extends EnhancerInterface {
/**
* Declares if the route enhancer applies to the given route.