public Cleanup(Action cleanup)
{
Stream <UnitInternal> stream = StreamInternal.NeverImpl <UnitInternal>();
stream.AttachListenerImpl(ListenerInternal.CreateFromAction(cleanup));
this.stream = stream;
}
public static Stream <T> Never <T>() => StreamInternal.NeverImpl <T>();
internal static Cell <T> ConstantImpl <T>(T value) => new Cell <T>(StreamInternal.NeverImpl <T>().HoldInternal(value));
internal static Cell <T> ConstantLazyImpl <T>(Lazy <T> value) => TransactionInternal.Apply((trans, _) => new Cell <T>(StreamInternal.NeverImpl <T>().HoldLazyInternal(trans, value)), false);
internal static Behavior <T> ConstantLazyImpl <T>(Lazy <T> value) => TransactionInternal.Apply((trans, _) => StreamInternal.NeverImpl <T>().HoldLazyInternal(trans, value), false);
