EntityDeleteForm::buildForm

public EntityDeleteForm::buildForm(array $form, FormStateInterface $form_state)

public function buildForm(array $form, FormStateInterface $form_state) {
  $form = parent::buildForm($form, $form_state);
  $entity = $this->getEntity();
  // Only do dependency processing for configuration entities. Whilst it is
  // possible for a configuration entity to be dependent on a content entity,
  // these dependencies are soft and content delete permissions are often
  // given to more users. This method should not make assumptions that $entity
  // is a configuration entity in case we decide to remove the following
  // condition.
  if (!($entity instanceof ConfigEntityInterface)) {
    return $form;
  }
  $this->addDependencyListsToForm($form, $entity->getConfigDependencyKey(), $this->getConfigNamesToDelete($entity), $this->getConfigManager(), $this->entityManager);

  return $form;
}