Re: GNU Guile 2.1.4 released [beta]

[Jan Wedekind <jan@wedesoft.de>]

On Fri, 16 Sep 2016, David Pirotte wrote:
> Jan,
>
>> I haven't managed to isolate it properly but I observed some strange
>> problem with "concatenate" (using my "aiscm" library).
>
>>      (define-method (match (i <integer>) . args) ...)
>>      ...
>>      (apply match (concatenate (list (list 1) (list 2 2 3 4 5 6 ))))
>>      oop/goops.scm:1336:2: oop/goops.scm:1336:2: In procedure vector-ref: Value
>> out of range: 7
>
> 	impossible to help you on this because the snipset is incomplete
> 	please provide a complete match definition
>
> Also, I think match is really a 'problematic' name, because it is defined in
> (ice-9 match), and most of us almost  always import this module.
>
> Chers,
> David
>

Hi David,

I managed to create a failing test. After a certain number of 
differently typed calls there is an error in "multiple-arity-dispatcher":

     (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); add more calls as needed
     ;(native-type #f #t); add more calls as needed
;oop/goops.scm:1336:2: oop/goops.scm:1336:2: In procedure vector-ref: Value out of range: 3
;
;Entering a new prompt.  Type `,bt' for a backtrace or `,q' to continue.
     ,bt
;In oop/goops.scm: 
;While executing meta-command: 
;ERROR: In procedure vector-set!: Value out of range: 5

I hope you can fix it. I can have a look as well but I don't understand 
the code well enough at the moment.

Regards
Jan