From: Noam Postavsky <npostavs@gmail.com>
To: Michael Heerdegen <michael_heerdegen@web.de>
Cc: Alan Mackenzie <acm@muc.de>, Eli Zaretskii <eliz@gnu.org>,
Stefan Monnier <monnier@iro.umontreal.ca>,
Emacs developers <emacs-devel@gnu.org>
Subject: Re: lexical-binding is turned on in more use cases
Date: Thu, 12 Mar 2020 20:46:16 -0400 [thread overview]
Message-ID: <CAM-tV-8drEV5XeeXPED2fTV_T3XfT5qVykNnBn1B6OrwREL4vg@mail.gmail.com> (raw)
In-Reply-To: <87wo7rodi6.fsf@web.de>
On Tue, 10 Mar 2020 at 22:02, Michael Heerdegen
<michael_heerdegen@web.de> wrote:
> > Essentially some cc-mode variables are only declared dynamic locally
> > within individual files. Without lexical binding the only difference
> > this causes is that they are unbound at top level; but with
> > lexical-binding, outside of the declaring files (e.g., in M-:
> > expressions), let-binding those variables doesn't bind the value
> > dynamically.
>
> I meant "real" examples (that are not actually coding errors).
Whether or not there is a coding error in the above is a somewhat
philosophical question.
> like let-binding a variable that is not (yet) declared around an
> expression whose evaluation will autoload the declaration but it's too
> late for that binding and you get something unexpected.
But I just realized Bug#39823 is an example of exactly this.
https://debbugs.gnu.org/39823 "update-directory-autoloads regression
from Emacs 26 to Emacs 27"
next prev parent reply other threads:[~2020-03-13 0:46 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-07 11:29 lexical-binding is turned on in more use cases Eli Zaretskii
2020-03-08 16:35 ` Stefan Monnier
2020-03-08 17:01 ` Eli Zaretskii
2020-03-08 17:33 ` Stefan Monnier
2020-03-08 17:43 ` Eli Zaretskii
2020-03-08 18:20 ` Stefan Monnier
2020-03-08 18:34 ` Eli Zaretskii
2020-03-08 19:30 ` Alan Mackenzie
2020-03-08 19:40 ` Eli Zaretskii
2020-03-08 19:56 ` Alan Mackenzie
2020-03-08 20:06 ` Eli Zaretskii
2020-03-08 20:15 ` Alan Mackenzie
2020-03-11 2:59 ` Richard Stallman
2020-03-11 12:44 ` Stefan Monnier
2020-03-08 23:41 ` Stefan Monnier
2020-03-08 23:41 ` Stefan Monnier
2020-03-09 20:10 ` John Wiegley
2020-03-09 21:18 ` Stefan Monnier
2020-03-09 21:27 ` Drew Adams
2020-03-09 21:43 ` Stefan Monnier
2020-03-09 22:30 ` John Wiegley
2020-03-10 19:13 ` Alan Mackenzie
2020-03-10 19:49 ` Andrea Corallo
2020-03-10 20:16 ` Alan Mackenzie
2020-03-10 20:54 ` Andrea Corallo
2020-04-07 23:28 ` Bruno Félix Rezende Ribeiro
2020-03-10 20:41 ` Stefan Monnier
2020-03-10 21:02 ` Michael Heerdegen
2020-03-10 21:02 ` Alan Mackenzie
2020-03-10 21:33 ` Stefan Monnier
2020-03-11 3:22 ` Eli Zaretskii
2020-03-10 21:14 ` Michael Heerdegen
2020-03-10 21:53 ` Alan Mackenzie
2020-03-10 23:41 ` Michael Heerdegen
2020-03-11 1:36 ` Noam Postavsky
2020-03-11 2:02 ` Michael Heerdegen
2020-03-13 0:46 ` Noam Postavsky [this message]
2020-03-11 3:06 ` Richard Stallman
2020-03-11 12:47 ` Stefan Monnier
2020-03-13 2:32 ` Michael Heerdegen
2020-03-11 2:11 ` Stefan Monnier
2020-03-11 22:39 ` John Wiegley
2020-03-09 20:22 ` Alan Mackenzie
2020-03-09 22:05 ` Stefan Monnier
2020-03-10 18:41 ` Alan Mackenzie
2020-03-10 19:05 ` Stefan Monnier
2020-03-10 19:41 ` Alan Mackenzie
2020-03-10 20:26 ` Stefan Monnier
2020-03-10 20:44 ` Alan Mackenzie
2020-03-10 21:30 ` Stefan Monnier
2020-03-11 3:06 ` Richard Stallman
2020-03-08 19:39 ` Stefan Monnier
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