namespace Drupal\Core\Form

Classsort descending Location Description
BaseFormIdInterface drupal/core/lib/Drupal/Core/Form/BaseFormIdInterface.php Provides an interface for a Form that has a base form ID.
ConfirmFormBase drupal/core/lib/Drupal/Core/Form/ConfirmFormBase.php Provides an generic base class for a confirmation form.
FormInterface drupal/core/lib/Drupal/Core/Form/FormInterface.php Provides an interface for a Form.