Refactored

src/EventTarget.php

@@ -55,9 +55,7 @@ public function __construct(RouteCollection $collection = null)
      */
     public function handle(string $event, callable $callback, int $priority = 0): Route
     {
-        $handler = new Route($event, $callback);
-        $this->collection->addRoute($handler);
-        return $handler->set('priority', $priority);
+        return $this->collection->createRoute($event, $callback)->set('priority', $priority);
     }
 
     /**

src/RouteCollection.php

@@ -24,7 +24,7 @@ class RouteCollection extends BaseRouteCollection
 {
     public function __construct()
     {
-        parent::__construct(new Builder([
+        parent::__construct(null, new Builder([
             Builder::SEGMENT_DELIMITER => '.',
             Builder::CAPTURE_MODE => (Builder::CAPTURE_LEFT | Builder::CAPTURE_TRAIL),
         ]), 'priority');