Encapsulates the caching of a form and its form state. Hierarchy class \Drupal\Core\Form\

protected FormBuilder::currentUser() Gets

protected SubformState::getParents($property) Gets

public FormStateDecoratorBase::setCleanValueKeys(array

Provides methods to manage form state values. Hierarchy trait \Drupal\Core\Form\

public FormBase::setRequestStack(RequestStack $request_stack)

Ordinarily, a form is only validated once, but there are times when a form is resubmitted internally and should be validated again. Setting this to TRUE will force that to

public FormStateInterface::setValidationEnforced($must_validate

public FormStateInterface::prepareCallback($callback)

public &FormStateInterface::getCompleteForm()