public FormState::setMethod($method) Sets

public FormStateInterface::addRebuildInfo($property, $value)

public FormStateInterface::setCleanValueKeys(array $keys)

public FormStateInterface::getBuildInfo()

public FormStateInterface::setSubmitted()

If TRUE, the form has been submitted. Defaults to FALSE. This property is uncacheable. Type:

public FormStateInterface::isMethodType($method_type)

public FormStateDecoratorBase::setCompleteForm(array

protected FormBuilder::buildFormAction() Builds

public FormBuilder::getFormId($form_arg, FormStateInterface &$form_state)