+++ /dev/null
-public class CollectionValueBase<T>
-{
- public virtual T[] ToArray()
- {
- return null;
- }
-}
-
-public class CollectionBase<T>: CollectionValueBase<T>
-{
-}
-
-public class SequencedBase<T>: CollectionBase<T>
-{
-}
-
-public class ArrayBase<T>: SequencedBase<T>
-{
- public override T[] ToArray()
- {
- return null;
- }
-}
-
-class X
-{
- static void Main ()
- { }
-}