vendor/symfony/mailer/EventListener/MessageLoggerListener.php line 38
<?php/** This file is part of the Symfony package.** (c) Fabien Potencier <fabien@symfony.com>** For the full copyright and license information, please view the LICENSE* file that was distributed with this source code.*/namespace Symfony\Component\Mailer\EventListener;use Symfony\Component\EventDispatcher\EventSubscriberInterface;use Symfony\Component\Mailer\Event\MessageEvent;use Symfony\Component\Mailer\Event\MessageEvents;use Symfony\Contracts\Service\ResetInterface;/*** Logs Messages.** @author Fabien Potencier <fabien@symfony.com>*/class MessageLoggerListener implements EventSubscriberInterface, ResetInterface{private MessageEvents $events;public function __construct(){$this->events = new MessageEvents();}public function reset(){$this->events = new MessageEvents();}public function onMessage(MessageEvent $event): void{$this->events->add($event);}public function getEvents(): MessageEvents{return $this->events;}public static function getSubscribedEvents(): array{return [MessageEvent::class => ['onMessage', -255],];}}