Re: [Emacs-diffs] master d895f6c: Fix Edebug specs for 'cl-defmethod' and 'defmethod'

[Dmitry Gutov]

On 10.05.2017 18:18, Stefan Monnier wrote:

> IIRC CLOS does not allow 0-arg methods (and it allows nil as a qualifier),
> whereas cl-defmethod uses `listp` to distinguish args from qualifiers,
> so it doesn't allow nil as qualifier (tho I suspect it doesn't handle
> a 0-arg method "correctly" either).

Seems to handle it okay, these both work:

(cl-defgeneric foo ()
  (1+ 2))

(cl-defmethod foo ()
  (1+ 4))

The latter redefines the default method, but that's to be expected.

If we want to support that kind of cl-defmethod in edebug, apparently we 
shold replace [&rest atom] with [&rest [&not listp]].