Subject: Re: bug#34233: 27.0.50; defvar in comment

From: Michael Heerdegen <[email-masked]>
Date: Tue, 09 Jul 2019 20:49:11 +0200

Lars Ingebrigtsen <[email-masked]> writes:

> Sebastian Miele <[email-masked]> writes:
>
> > ;; Start ./src/emacs -Q, put this into *scratch*, do not remove this
> > ;; "(defvar x)" in this comment, and C-x C-e the following two
> > ;; expressions in turn:
> > ;;
> > (setq lexical-binding t)
> > (let ((x 42)) (lambda () x))
> > ;;
> > ;; Value: (closure (x t) nil x)
> > ;; Expected: (closure ((x . 42) t) nil x)
>
> I can confirm that this bug is still present.
>
> Stefan, do you know what's going on here?  That a commented-out (defvar)
> before the eval-ed form has any effect is rather surprising...

This is `eval-sexp-add-defvars' not checking if defvars are really code.

Michael.