getEventClasses example

use Shopware\Core\Framework\Log\Package;
use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;
use Symfony\Component\DependencyInjection\ContainerBuilder;
use Symfony\Contracts\EventDispatcher\Event as SymfonyBaseEvent;

#[Package('core')] class ActionEventCompilerPass implements CompilerPassInterface
{
    public function process(ContainerBuilder $container): void
    {
        $classes = [];
        foreach ($this->getEventClasses() as $eventClass) {
            if (!is_subclass_of($eventClass, FlowEventAware::class)) {
                continue;
            }

            $classes[] = $eventClass;
        }

        $definition = $container->getDefinition(BusinessEventRegistry::class);
        $definition->addMethodCall('addClasses', [$classes]);
    }