Subject: bug#66938: 30.0.50 [PATCH]: Make EIEIO :accessor behave like :reader when reading a slot's value

From: Stefan Monnier <[email-masked]>
Date: Sat, 25 Nov 2023 09:56:57 -0500

[ Sorry for the delay, and thanks Eli for re-pinging me.  ]

> I've included a suggested patch for 'eieio.el', which slightly
> modifies the behavior of EIEIO's 'defclass'. When playing around with
> 'eieio-instance-inheritor' as a base class, I noticed that calls to
> the accessor (when used as a getter) weren't delegating to the parent
> instance (as defined when calling 'clone'). That is, an object clone that
> doesn't set
> its fields directly will report 'nil' when the accessor method is used as a
> getter for some slot.

The patch looks great and confirms my FIXME.

Could you turn the example in the commit message into a test in
test/lisp/emacs-lisp/eieio-tests/eieio-tests.el?

        Stefan