public &FormState::getCompleteForm() Returns

public ConfirmFormInterface::getCancelUrl()

The app root. Type: string File core/lib/Drupal/Core/Form/FormCache

public SubformStateInterface::getCompleteFormState()

public FormStateInterface::hasFileElement()

public FormStateInterface::setCached($cache = TRUE)

The complete form structure. #process, #after_build, #element_validate, and other handlers being invoked on a form element may use this reference

public FormStateInterface::unsetValue($key)

The theme manager. Type:

public FormValidator::setInvalidTokenError(FormStateInterface $form_state)