class RouterRebuildConfirmForm

class RouterRebuildConfirmForm extends ConfirmFormBase {
  
  /**
   * The route builder service.
   *
   * @var \Drupal\Core\Routing\RouteBuilderInterface
   */
  protected $routeBuilder;
  
  /**
   * Constructs a new RouterRebuildConfirmForm object.
   *
   * @param \Drupal\Core\Routing\RouteBuilderInterface $route_builder
   *   The route builder service.
   */
  public function __construct(RouteBuilderInterface $route_builder) {
    $this->routeBuilder = $route_builder;
  }
  
  /**
   * {@inheritdoc}
   */
  public static function create(ContainerInterface $container) {
    return new static($container->get('router.builder'));
  }
  
  /**
   * {@inheritdoc}
   */
  public function getFormId() {
    return 'devel_menu_rebuild';
  }
  
  /**
   * {@inheritdoc}
   */
  public function getQuestion() {
    return $this->t('Are you sure you want to rebuild the router?');
  }
  
  /**
   * {@inheritdoc}
   */
  public function getCancelUrl() {
    return new Url('<front>');
  }
  
  /**
   * {@inheritdoc}
   */
  public function getDescription() {
    return $this->t('Rebuilds the routes information gathering all routing data from .routing.yml files and from classes which subscribe to the route build events. This action cannot be undone.');
  }
  
  /**
   * {@inheritdoc}
   */
  public function getConfirmText() {
    return $this->t('Rebuild');
  }
  
  /**
   * {@inheritdoc}
   */
  public function submitForm(array &$form, FormStateInterface $form_state) {
    $this->routeBuilder
      ->rebuild();
    $this->messenger()
      ->addMessage($this->t('The router has been rebuilt.'));
    $form_state->setRedirect('<front>');
  }

}