unregister method

void unregister(
  1. HintTargetRegistration registration
)

Removes registration only if it is the current owner of its id. A foreign/stale registration is a silent no-op (dispose races are inevitable) and does not notify listeners.

Implementation

void unregister(HintTargetRegistration registration) {
  final owner = _byId[registration.id];
  if (owner == null || !identical(owner, registration)) {
    return;
  }
  _byId.remove(registration.id);
  _notifyChanged();
}