All classes that implement PreloadableRouteProviderInterface in Drupal 8
- class \Drupal\Core\Routing\RouteProvider implements \Symfony\Cmf\Component\Routing\PagedRouteProviderInterface, \Symfony\Component\EventDispatcher\EventSubscriberInterface, CacheableRouteProviderInterface, PreloadableRouteProviderInterface
- class \Drupal\Core\Routing\RouteProviderLazyBuilder implements \Symfony\Cmf\Component\Routing\PagedRouteProviderInterface, \Symfony\Component\EventDispatcher\EventSubscriberInterface, PreloadableRouteProviderInterface
- class \Drupal\KernelTests\Core\Routing\TestRouteProvider
- class \Drupal\KernelTests\RouteProvider implements \Symfony\Cmf\Component\Routing\PagedRouteProviderInterface, PreloadableRouteProviderInterface uses DependencySerializationTrait
- class \Drupal\domain\Routing\DomainRouteProvider
- class \Drupal\mongodb\MongodbRouterRouteProvider
- class \Drupal\multiversion\RouteProvider
- class \Drupal\simpletest\RouteProvider
- class \Drupal\simpletest\RouteProvider