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

public FormStateDecoratorBase::getLimitValidationErrors()

public FormValidator::setInvalidTokenError(FormStateInterface $form_state)

public FormStateInterface::isCached()

public ConfirmFormInterface::getCancelUrl()

public FormState::isValidationComplete() Determines

public FormStateDecoratorBase::setExecuted()

Provides form building and processing. Hierarchy class \Drupal\Core\Form\

public FormBuilderInterface::getForm($form_arg)

public &FormStateDecoratorBase::getGroups()