public FormStateInterface::has($property)

public FormStateInterface::hasInvalidToken()

public FormStateInterface::setRebuildInfo(array $rebuild_info)

An associative array of information stored by Form API that is necessary to build and rebuild the form from cache when the original context may no longer be available:

public &FormStateInterface::getTemporaryValue($key)

protected FormBuilder::valueCallableIsSafe(callable $value_callable)

protected FormValidator::handleErrorsWithLimitedValidation(&$form, FormStateInterface

public FormStateDecoratorBase::isProgrammed()

public FormStateDecoratorBase::setValueForElement(array

public FormStateDecoratorBase::hasInvalidToken()