[racket] typed racket and interfaces

On May 3, 2014, at 12:24 AM, Asumu Takikawa <asumu at ccs.neu.edu> wrote:

> On 2014-05-02 21:36:07 -0400, Alexander D. Knauth wrote:
>>   And it gave me this error:
>>   . Type Checker: not a valid type: #:implements in: #:implements
> 
> This example works for me. I forgot to ask though: are you trying to run
> this on Racket v6.0?
Yes

> 
> Typed Racket prior to the current pre-release (and the upcoming v6.0.1)
> mostly does not support classes. If you don't have a pre-release build
> already, you can get one here (at one of the linked snapshot sites):
> 
>  http://pre.racket-lang.org/
I tried to do that but for some reason the snapshot DrRacket always quits on me after showing the initial loading window.  But that’s another conversation.  

> 
> Cheers,
> Asumu