NavigationServiceProvider.php

<?php

declare (strict_types=1);
namespace Drupal\navigation;

use Drupal\Core\DependencyInjection\ContainerBuilder;
use Drupal\Core\DependencyInjection\ServiceProviderInterface;
use Symfony\Component\DependencyInjection\Reference;

/**
 * Defines a service provider for the Navigation module.
 *
 * @internal
 */
final class NavigationServiceProvider implements ServiceProviderInterface {
    
    /**
     * {@inheritdoc}
     */
    public function register(ContainerBuilder $container) : void {
        // If shortcuts module service is available, register our own service.
        if ($container->has('shortcut.lazy_builders')) {
            $container->register('navigation.shortcut_lazy_builder', ShortcutLazyBuilder::class)
                ->addArgument(new Reference('shortcut.lazy_builders'));
        }
    }

}