A logger instance. Type: \Psr\Log\LoggerInterface File

protected FormValidator::finalizeValidation(&$form, FormStateInterface

protected FormValidator::performRequiredValidation(&$elements, FormStateInterface

The CSRF token generator to validate the form token. Type:

public FormValidator::setInvalidTokenError(FormStateInterface $form_state)

public FormValidator::validateForm($form_id, &$form, FormStateInterface

The request stack. Type: \Symfony\Component\HttpFoundation\RequestStack File

Provides validation of form submissions. Hierarchy class \Drupal\Core\Form\

The form error handler. Type:

protected FormValidator::doValidateForm(&$elements, FormStateInterface