registrar property Null safety

SelectionRegistrar? registrar

The SelectionRegistrar this paragraph will be, or is, registered to.

Implementation

SelectionRegistrar? get registrar => _registrar;
void registrar=(SelectionRegistrar? value)

Implementation

set registrar(SelectionRegistrar? value) {
  if (value == _registrar) {
    return;
  }
  _removeSelectionRegistrarSubscription();
  _disposeSelectableFragments();
  _registrar = value;
  _updateSelectionRegistrarSubscription();
}