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<?php /* * This file is part of the Symfony package. * * (c) Fabien Potencier <[email protected]> * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace Symfony\Contracts\EventDispatcher; use Psr\EventDispatcher\EventDispatcherInterface as PsrEventDispatcherInterface; if (interface_exists(PsrEventDispatcherInterface::class)) { /** * Allows providing hooks on domain-specific lifecycles by dispatching events. */ interface EventDispatcherInterface extends PsrEventDispatcherInterface { /** * Dispatches an event to all registered listeners. * * For BC with Symfony 4, the $eventName argument is not declared explicitly on the * signature of the method. Implementations that are not bound by this BC constraint * MUST declare it explicitly, as allowed by PHP. * * @param object $event The event to pass to the event handlers/listeners * @param string|null $eventName The name of the event to dispatch. If not supplied, * the class of $event should be used instead. * * @return object The passed $event MUST be returned */ public function dispatch($event/*, string $eventName = null*/); } } else { /** * Allows providing hooks on domain-specific lifecycles by dispatching events. */ interface EventDispatcherInterface { /** * Dispatches an event to all registered listeners. * * For BC with Symfony 4, the $eventName argument is not declared explicitly on the * signature of the method. Implementations that are not bound by this BC constraint * MUST declare it explicitly, as allowed by PHP. * * @param object $event The event to pass to the event handlers/listeners * @param string|null $eventName The name of the event to dispatch. If not supplied, * the class of $event should be used instead. * * @return object The passed $event MUST be returned */ public function dispatch($event/*, string $eventName = null*/); } }