onError method

void onError(
  1. Object error,
  2. StackTrace stack
)

Implementation

void onError(Object error, StackTrace stack) {
  if (_onError is Function(Object)) {
    _onError!(error);
  } else if (_onError is Function(Object, StackTrace)) {
    _onError!(error, stack);
  } else {
    throw error;
  }
}