Subject: Re: bug#24454: GOOPS problem with GNU Guile 2.1.4

From: Andy Wingo <[email-masked]>
Date: Wed, 22 Feb 2017 23:11:55 +0100

On Sat 17 Sep 2016 22:43, Jan Wedekind <[email-masked]> writes:

> The following program works fine under GNU Guile 2.0.12:
>
>     (use-modules (oop goops))
>     (define-generic native-type)
>     (define-method (native-type (i <integer>) . args) 0)
>     (define-method (native-type (i <real>) . args) 1)
>     (define-method (native-type (b <boolean>) . args) 2)
>
>     (native-type 1)
>     (native-type 1.3)
>     (native-type #f)
>     (native-type 1 1.2)
>     (native-type 1.4 2)
>     (native-type 1.4 2 3)
>     (native-type 1.4 1.5)
>     (native-type #f #t)
>
> However under GNU Guile 2.1.4 [1] it fails with an error in
> "multiple-arity-dispatcher":

Thanks for the bug report!  Fixed in master.

> Getting the backtrace didn't work:

Oops :P  I fixed this too.

Cheers,

Andy