[EventDispatcher] Fix abstract event subscribers registration

nicolas-grekas · chalasr · commit 34eeffbbcf71 · 2017-02-22T18:56:21.000+01:00
diff --git a/src/Symfony/Component/EventDispatcher/DependencyInjection/RegisterListenersPass.php b/src/Symfony/Component/EventDispatcher/DependencyInjection/RegisterListenersPass.php
@@ -16,6 +16,7 @@
 use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;
 use Symfony\Component\DependencyInjection\Exception\InvalidArgumentException;
 use Symfony\Component\EventDispatcher\EventDispatcher;
+use Symfony\Component\EventDispatcher\EventSubscriberInterface;
 
 /**
  * Compiler pass to register tagged services for an event dispatcher.
@@ -105,8 +106,8 @@ public function process(ContainerBuilder $container)
             }
             $container->addObjectResource($class);
 
-            $r = new \ReflectionClass($class);
-            $extractingDispatcher->addSubscriber($r->newInstanceWithoutConstructor());
+            ExtractingEventDispatcher::$subscriber = $class;
+            $extractingDispatcher->addSubscriber($extractingDispatcher);
             foreach ($extractingDispatcher->listeners as $args) {
                 $args[1] = new ClosureProxyArgument($id, $args[1]);
                 $definition->addMethodCall('addListener', $args);
@@ -119,12 +120,21 @@ public function process(ContainerBuilder $container)
 /**
  * @internal
  */
-class ExtractingEventDispatcher extends EventDispatcher
+class ExtractingEventDispatcher extends EventDispatcher implements EventSubscriberInterface
 {
     public $listeners = array();
 
+    public static $subscriber;
+
     public function addListener($eventName, $listener, $priority = 0)
     {
         $this->listeners[] = array($eventName, $listener[1], $priority);
     }
+
+    public static function getSubscribedEvents()
+    {
+        $callback = array(self::$subscriber, 'getSubscribedEvents');
+
+        return $callback();
+    }
 }
