Interface Covariance Bug?

[Stewart Gordon]

John C wrote:
> "Walter Bright" <newshound at digitalmars.com> wrote in message 
> news:e09vmu$2ubc$1 at digitaldaemon.com...
>> It's a forward reference problem. Try reversing the declarations of keys() 
>> and KeyCollection.
> 
> Thanks - that fixed it.
> 
> But surely it highlights a separate bug: forward referencing isn't supposed 
> to be an issue in D, is it?

Correct.

You'll notice that many forward reference bugs have been filed both here 
and in DStress.  But a forward reference bug that leads to bad code 
generation is a new one on me.

Stewart.

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