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<?php
declare(strict_types=1);
namespace League\OAuth2\Server\EventEmitting;
use League\Event\ListenerRegistry;
use Psr\EventDispatcher\EventDispatcherInterface;
trait EmitterAwarePolyfill
{
private EventEmitter $emitter;
public function getEmitter(): EventEmitter
return $this->emitter ??= new EventEmitter();
}
public function setEmitter(EventEmitter $emitter): self
$this->emitter = $emitter;
return $this;
public function getEventDispatcher(): EventDispatcherInterface
return $this->getEmitter();
public function getListenerRegistry(): ListenerRegistry
thephpleague /
oauth2-server
