[slime-devel] Re: ECL support broken in CVS

"Yaroslav Kavenchuk" <kavenchuk@gmail.com> writes:

>> Suggestions welcome.
>
> This is bug (?) of ECL:
>
>> (find-package :||)
> In function ROW-MAJOR-AREF, the value of index is
>         0
> which is not of expected type (INTEGER 0 0)
> Broken at EVAL.Available restarts:
> 1. (USE-VALUE) Supply a new value of type (INTEGER 0 0).
> Broken at FIND-PACKAGE.

Yes, this seems like a bug in ECL. If you have the chance, please fix it
there.

> Fast solution:
>
> --- swank.lisp	Wed Sep 19 14:12:08 2007
> +++ swank.lisp	Sat Oct 20 11:19:52 2007
> @@ -1606,16 +1606,17 @@
>  (defun parse-package (string)
>    "Find the package named STRING.
>  Return the package or nil."
> ...
> +  (when string
> +    (multiple-value-bind (name pos)
> +        (if (zerop (length string))
> +            (values :|| 0)
> +            (let ((*package* *swank-io-package*))
> +              (ignore-errors (read-from-string string))))
> +      (and name
>             ...
> +           (find-package name)))))

I don't see how this fixes the problem. If you pass "", the `(when
string' will still evaluate its body, so :|| will still be passed down
to FIND-PACKAGE, won't it?

  -T.