[racket] define-generics #:defaults

From: Carl Eastlund (cce at ccs.neu.edu)
Date: Wed Jul 10 13:32:50 EDT 2013


I've just pushed a fix to this bug, which I had written previously as part
of some other work I'm doing with generics.  As Vincent already pointed
out, if you're using a released version of Racket and updating to the new
code is problematic, you can always work around the bug with your own
wrapper functions.

Thanks for the report,
Carl Eastlund

On Wed, Jul 10, 2013 at 5:03 AM, Bert De Ketelaere <bedeke at hotmail.com>wrote:

> Helo,
> in the documentation it is mentioned that the syntax for define-generics
> #:defaults is the same as for struct #:methods:
> http://docs.racket-lang.org/reference/struct-generics.html#%28form._%28%28lib._racket%2Fgeneric..rkt%29._define-generics%29%29
> and #:methods specifies that define/generic can be used to bind the
> generic method:
> http://docs.racket-lang.org/reference/define-struct.html#%28form._%28%28lib._racket%2Fprivate%2Fbase..rkt%29._struct%29%29
> but unfortunately using define/generic in #:defaults is a syntax error.
> Is it possible to access the generic method from inside #:defaults
> definitions?
> Groeten,
> Bert
> ____________________
>   Racket Users list:
>   http://lists.racket-lang.org/users
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.racket-lang.org/users/archive/attachments/20130710/85aac62e/attachment.html>

Posted on the users mailing list.