Nested interface

[Timon Gehr]

On 04/01/2012 08:13 PM, Read Bixby wrote:
> Hm, I guess it's much simpler than that.  I must not be understanding
> something about covariance.  The following code produces the same error
> message (it has nothing to do with nestedness or shared classes):
>
>
> interface Interface
> {
>      Interface getNext();
>      const(Interface) getNext() const;
> }
>
> class Implementation : Interface
> {
>      Implementation getNext()
>      {
>          return null;
>      }
>
>      const(Implementation) getNext() const
>      {
>          return null;
>      }
> }
>

This is a compiler bug. It works if 'Interface' is changed to an 
abstract class.

Please report this issue to the bug tracker:
http://d.puremagic.com/issues/