DeferringDispatcher.php

<?php

declare (strict_types=1);

/*
 * This file is part of PHPUnit.
 *
 * (c) Sebastian Bergmann <sebastian@phpunit.de>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace PHPUnit\Event;


/**
 * @no-named-arguments Parameter names are not covered by the backward compatibility promise for PHPUnit
 *
 * @internal This class is not covered by the backward compatibility promise for PHPUnit
 */
final class DeferringDispatcher implements SubscribableDispatcher {
    private readonly SubscribableDispatcher $dispatcher;
    private EventCollection $events;
    private bool $recording = true;
    public function __construct(SubscribableDispatcher $dispatcher) {
        $this->dispatcher = $dispatcher;
        $this->events = new EventCollection();
    }
    public function registerTracer(Tracer\Tracer $tracer) : void {
        $this->dispatcher
            ->registerTracer($tracer);
    }
    public function registerSubscriber(Subscriber $subscriber) : void {
        $this->dispatcher
            ->registerSubscriber($subscriber);
    }
    public function dispatch(Event $event) : void {
        if ($this->recording) {
            $this->events
                ->add($event);
            return;
        }
        $this->dispatcher
            ->dispatch($event);
    }
    public function flush() : void {
        $this->recording = false;
        foreach ($this->events as $event) {
            $this->dispatcher
                ->dispatch($event);
        }
        $this->events = new EventCollection();
    }

}