3 public delegate bool UnaryOperator(object self
, out object res
);
4 public void AddOperator(UnaryOperator target
) {}
5 public bool TryGetValue(object self
, out object value)
11 public static void Main ()
17 AddOperator (delegate(object self
, out object res
) {
19 if (TryGetValue(self
, out value)) {
21 if (res
!= null) return true;