addDisposable<T> method

T addDisposable<T>(T disposable)

Registers disposable for disposal when dispose is called later.

Prefer typed functions whenever possible, as this is megamorphic: addEventSink addStreamSubscription addFunction

Implementation

T addDisposable<T>(T disposable) {
  // TODO(google): `disposable_` is a workaround to make this code
  // strong-clean. We should be able to get rid of it once dartbug.com/26439
  // is addressed in the language.
  dynamic disposable_ = disposable;
  if (disposable_ is Disposable) {
    _disposeDisposables.add(disposable as Disposable);
    _checkIfAlreadyDisposed();
  } else if (disposable_ is StreamSubscription) {
    addStreamSubscription(disposable_);
  } else if (disposable_ is EventSink) {
    addEventSink(disposable_);
  } else if (disposable_ is DisposeFunction) {
    addFunction(disposable_);
  } else {
    throw ArgumentError.value(disposable, 'disposable');
  }
  return disposable;
}