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From: Eli Zaretskii <eliz@gnu.org>
To: Stefan Monnier <monnier@iro.umontreal.ca>
Cc: larsi@gnus.org, 52063@debbugs.gnu.org
Subject: bug#52063: 28.0.60; Confusing presentation of lambda
Date: Wed, 24 Nov 2021 22:14:03 +0200	[thread overview]
Message-ID: <83r1b571mc.fsf@gnu.org> (raw)
In-Reply-To: <jwva6htqqch.fsf-monnier+emacs@gnu.org> (message from Stefan Monnier on Wed, 24 Nov 2021 15:08:38 -0500)

> From: Stefan Monnier <monnier@iro.umontreal.ca>
> Cc: larsi@gnus.org,  52063@debbugs.gnu.org
> Date: Wed, 24 Nov 2021 15:08:38 -0500
> 
> > And we also have menu items and mode-line constructs
> > that sometimes use anonymous functions.
> 
> I think it's very rare for a user to look at those objects.
> 
> > And timer functions.
> 
> I can't remember the last time I looked at such a value.  And given the
> extra info attached to it, it's not very legible so I don't think people
> are affected very much by a change in the actual function
> representation there.
> 
> > And process filter and sentinel functions.
> 
> Same here: you will often set them, but very rarely will you actually
> look at their value.

I look at the values to make sure they are what I expect.  It's normal
in Emacs to do that, isn't it?

> > So I guess the warning about quoting lambdas with ' instead of #' is
> > actually misleading people into getting these closures instead of the
> > lambdas they might expect?
> 
> A value (lambda ...) is fundamentally a list.  The rest of the system
> (e.g. the byte-compiler, flymake, ...) can't know if you intend to use
> this list as a function, so it can't really look inside to compile its
> body, warn you about typos in its body, or uses of obsolete
> vars/functions, etc...

I'm talking about evaluation, not about byte-compilation.  This
happened when Emacs was processing my init file.

> It's all about the difference between code and data ;-)

What difference?  I always thought that in Emacs Lisp there's no such
difference.  Does lexical-binding change that as well?





  reply	other threads:[~2021-11-24 20:14 UTC|newest]

Thread overview: 55+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-11-23 18:56 bug#52063: 28.0.60; Confusing presentation of lambda Eli Zaretskii
2021-11-24  7:35 ` Lars Ingebrigtsen
2021-11-24 12:48   ` Eli Zaretskii
2021-11-24 12:51     ` Lars Ingebrigtsen
2021-11-24 13:15       ` Eli Zaretskii
2021-11-24 13:31         ` Lars Ingebrigtsen
2021-11-24 14:38           ` Eli Zaretskii
2021-11-24 16:21             ` Lars Ingebrigtsen
2021-11-24 16:33               ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-11-24 16:54                 ` Eli Zaretskii
2021-11-24 17:19                   ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-11-24 17:44                     ` Eli Zaretskii
2021-11-24 19:06                       ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-11-24 19:53                         ` Eli Zaretskii
2021-11-24 20:08                           ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-11-24 20:14                             ` Eli Zaretskii [this message]
2021-11-24 22:02                               ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-11-24 22:33                               ` Jim Porter
2021-11-24 22:42                                 ` Jim Porter
2021-11-24 21:10                             ` Eduardo Ochs
2021-11-24 16:40             ` Filipp Gunbin
2021-11-24 16:54               ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-11-24 18:18                 ` Filipp Gunbin
2021-11-24 19:08                   ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-11-24 19:41                     ` Eli Zaretskii
2021-11-24 19:46                       ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-11-24 19:59                         ` Eli Zaretskii
2021-11-24 20:23                           ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-11-24 22:37                             ` Gregory Heytings
2021-11-25  0:09                               ` Filipp Gunbin
2021-11-25  8:57                               ` Michael Heerdegen
2021-11-25 13:09                                 ` Lars Ingebrigtsen
2021-11-25 14:08                                   ` Michael Heerdegen
2021-11-25 14:39                                   ` Gregory Heytings
2021-11-24 20:16                     ` Philipp Stephani
2021-11-24 21:44                       ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-11-25  0:13                       ` Filipp Gunbin
2021-11-25 13:15                         ` Lars Ingebrigtsen
2021-11-25 19:07                           ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-11-25 19:56                             ` Jim Porter
2021-11-26 12:28                               ` Lars Ingebrigtsen
2021-11-26 12:26                             ` Lars Ingebrigtsen
2021-11-26 13:13                               ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-11-26 13:22                                 ` Lars Ingebrigtsen
2021-11-26 13:26                                   ` Lars Ingebrigtsen
2021-11-26 14:57                                     ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-11-26 15:00                                       ` Lars Ingebrigtsen
2021-11-26 16:58                                         ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-11-27 14:17                                           ` Lars Ingebrigtsen
2021-11-27 15:28                                             ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-11-29 13:54                                               ` Lars Ingebrigtsen
2021-11-29 17:58                                                 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-11-30 14:07                                                 ` Michael Heerdegen
2021-11-30 14:20                                                   ` Lars Ingebrigtsen
2021-11-24 16:56               ` Eli Zaretskii

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