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From: Noam Postavsky <npostavs@gmail.com>
To: Eric Abrahamsen <eric@ericabrahamsen.net>
Cc: 33263@debbugs.gnu.org
Subject: bug#33263: 27.0.50; Tidying up Gnus modes
Date: Tue, 06 Nov 2018 08:27:56 -0500	[thread overview]
Message-ID: <8736seibdv.fsf@gmail.com> (raw)
In-Reply-To: <87o9b3za3p.fsf@ericabrahamsen.net> (Eric Abrahamsen's message of "Mon, 05 Nov 2018 09:51:22 -0800")

Eric Abrahamsen <eric@ericabrahamsen.net> writes:

> Noam Postavsky <npostavs@gmail.com> writes:
>
>> Eric Abrahamsen <eric@ericabrahamsen.net> writes:
>>
>>> +(defvar gnus-browse-mode-map (make-keymap))
>>>
>>>  (unless gnus-browse-mode-map
>>> -  (setq gnus-browse-mode-map (make-keymap))
>>> +  (defvar gnus-browse-mode-map (make-keymap))
>>
>> This doesn't look right.
>
> Hmm, you're right, I think I got confused there. TBH I don't really know
> why these things are wrapped in `unless', but I think what should have
> happened is that `gnus-browse-mode-map' is first defvar'ed to nil, and
> later setq'ed to (make-keymap).

The usual idiom for this is

    (defvar gnus-browse-mode-map
      (let ((map (make-sparse-keymap)))
        (define-key map ...)
        ...
        map))

It seems that (the expansion of) gnus-define-keys relies on dynamic
binding of the map variable (i.e., it must be called after the defvar,
not inside), so that's the reason to split in two parts.





  reply	other threads:[~2018-11-06 13:27 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-11-05  2:53 bug#33263: 27.0.50; Tidying up Gnus modes Eric Abrahamsen
2018-11-05 14:14 ` Noam Postavsky
2018-11-05 17:51   ` Eric Abrahamsen
2018-11-06 13:27     ` Noam Postavsky [this message]
2018-11-06 16:21       ` Eric Abrahamsen
2018-11-06 16:28         ` Noam Postavsky
2018-11-06 17:37           ` Eric Abrahamsen
2018-11-10  4:01 ` bug#33263: 27.0.50; Tidying up Gnus modes, [PATCH] Provide new gnus-mode, derive all gnus major modes from this Noam Postavsky
2018-11-10  4:55   ` Eric Abrahamsen
2018-11-10 20:18     ` Eric Abrahamsen
2018-11-23 17:45 ` bug#33263: 27.0.50; Tidying up Gnus modes Eric Abrahamsen

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