MenuLinkInterface

class \Drupal\Core\Menu\InaccessibleMenuLink extends \Drupal\Core\Menu\MenuLinkBase
class \Drupal\Core\Menu\MenuLinkBase extends \Drupal\Core\Plugin\PluginBase implements \Drupal\Core\Menu\MenuLinkInterface
class \Drupal\Core\Menu\MenuLinkDefault extends \Drupal\Core\Menu\MenuLinkBase implements \Drupal\Core\Plugin\ContainerFactoryPluginInterface
class \Drupal\menu_link_content\Plugin\Menu\MenuLinkContent extends \Drupal\Core\Menu\MenuLinkBase implements \Drupal\Core\Plugin\ContainerFactoryPluginInterface
class \Drupal\user\Plugin\Menu\LoginLogoutMenuLink extends \Drupal\Core\Menu\MenuLinkDefault
class \Drupal\views\Plugin\Menu\ViewsMenuLink extends \Drupal\Core\Menu\MenuLinkBase implements \Drupal\Core\Plugin\ContainerFactoryPluginInterface