🔧

vendor/symfony/event-dispatcher/EventDispatcher.php

@@ -42,7 +42,7 @@ class EventDispatcher implements EventDispatcherInterface
         }
     }
 
-    public function dispatch(object $event, string $eventName = null): object
+    public function dispatch(object $event, ?string $eventName = null): object
     {
         $eventName ??= $event::class;
 
@@ -59,7 +59,7 @@ class EventDispatcher implements EventDispatcherInterface
         return $event;
     }
 
-    public function getListeners(string $eventName = null): array
+    public function getListeners(?string $eventName = null): array
     {
         if (null !== $eventName) {
             if (empty($this->listeners[$eventName])) {
@@ -108,7 +108,7 @@ class EventDispatcher implements EventDispatcherInterface
         return null;
     }
 
-    public function hasListeners(string $eventName = null): bool
+    public function hasListeners(?string $eventName = null): bool
     {
         if (null !== $eventName) {
             return !empty($this->listeners[$eventName]);