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From: npostavs@users.sourceforge.net
To: Eli Zaretskii <eliz@gnu.org>
Cc: 23926@debbugs.gnu.org
Subject: bug#23926: defcustom with STANDARD=<non-pure-expression> gives confusing results
Date: Sat, 09 Jul 2016 07:54:58 -0400	[thread overview]
Message-ID: <87k2gvhvql.fsf@users.sourceforge.net> (raw)
In-Reply-To: <83vb0fgu83.fsf@gnu.org> (Eli Zaretskii's message of "Sat, 09 Jul 2016 10:13:00 +0300")

retitle 23926 defcustom with STANDARD=<non-constant-expression> gives confusing results
quit

Eli Zaretskii <eliz@gnu.org> writes:

>> From: Noam Postavsky <npostavs@users.sourceforge.net>
>> Date: Fri, 8 Jul 2016 23:11:02 -0400
>> 
>> A trivial example:
>> 
>> (defcustom time (current-time-string)
>>   "the time"
>>   :type 'string)
>> 
>> Then try to M-x customize-options RET time RET, it will show with
>> state "CHANGED outside Customize." Similarly, doing <f1> v time RET
>> shows the "original value" as the current time, not the actual value
>> when `time' was defined.
>
> Why is this a bug?  Seems to be expected behavior to me.

Yeah, it seems expected because you're familiar with the code.  But it
causes Emacs to claim the "original" value is different from what it
originally was, which seems nonsensical.

I wonder why Emacs saves only the original expression and not the
actual original value?





  reply	other threads:[~2016-07-09 11:54 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-07-09  3:11 bug#23926: defcustom with STANDARD=<non-pure-expression> gives confusing results Noam Postavsky
2016-07-09  6:31 ` Drew Adams
2016-07-09  7:13 ` Eli Zaretskii
2016-07-09 11:54   ` npostavs [this message]
2016-07-09 12:31     ` Eli Zaretskii
2016-07-09 12:55       ` Noam Postavsky
2016-07-09 13:14         ` Eli Zaretskii
2016-07-09 13:48           ` Noam Postavsky
2016-07-09 14:03             ` Eli Zaretskii
2016-07-12  3:26               ` npostavs
2016-07-12  5:20                 ` Eli Zaretskii
2016-07-09 14:34             ` Drew Adams
     [not found]             ` <<8360sehps4.fsf@gnu.org>
2016-07-09 14:54               ` Drew Adams
2016-07-09 15:09                 ` Drew Adams
2016-07-10 17:23                 ` Drew Adams
2023-10-17 14:19 ` bug#23926: defcustom with STANDARD=<non-constant-expression> " Mauro Aranda
2023-10-17 14:29   ` Mauro Aranda
     [not found] <<<<<CAM-tV-8cG3gLgf-A+wBYPZWNy2WPGFV3uEdNE7=ad3oq4rXmnw@mail.gmail.com>
     [not found] ` <<<<<83vb0fgu83.fsf@gnu.org>
     [not found]   ` <<<<443f2e44-5167-48e7-abc6-cce1e243461e@default>
     [not found]     ` <<<<8337nihpdw.fsf@gnu.org>
     [not found]       ` <<<c0dd88c2-51ef-4f4f-964c-f0254db970f7@default>
     [not found]         ` <<<83zipqg3e3.fsf@gnu.org>
     [not found]           ` <<ff33c2cc-337a-433b-a87a-0ea1814311d2@default>
     [not found]             ` <<83bn24c8io.fsf@gnu.org>
2016-07-12  0:53               ` bug#23926: defcustom with STANDARD=<non-pure-expression> " Drew Adams
     [not found] <<<CAM-tV-8cG3gLgf-A+wBYPZWNy2WPGFV3uEdNE7=ad3oq4rXmnw@mail.gmail.com>
     [not found] ` <<<83vb0fgu83.fsf@gnu.org>
     [not found]   ` <<443f2e44-5167-48e7-abc6-cce1e243461e@default>
     [not found]     ` <<8337nihpdw.fsf@gnu.org>
2016-07-09 14:59       ` Drew Adams
2016-07-09 16:52         ` Eli Zaretskii
2016-07-09 20:48           ` npostavs
2016-07-10 14:19             ` Eli Zaretskii
     [not found]           ` <<871t32ilm0.fsf@users.sourceforge.net>
     [not found]             ` <<83k2gtfue4.fsf@gnu.org>
2016-07-10 17:18               ` Drew Adams
2016-07-11 18:40                 ` Eli Zaretskii
     [not found] <<CAM-tV-8cG3gLgf-A+wBYPZWNy2WPGFV3uEdNE7=ad3oq4rXmnw@mail.gmail.com>
     [not found] ` <<83vb0fgu83.fsf@gnu.org>
2016-07-09 14:09   ` Drew Adams
2016-07-09 14:12     ` Eli Zaretskii
     [not found]       ` <<c0dd88c2-51ef-4f4f-964c-f0254db970f7@default>
     [not found]         ` <<83zipqg3e3.fsf@gnu.org>
2016-07-10 17:18           ` Drew Adams
2016-07-11 18:52             ` Eli Zaretskii
     [not found] <<<<CAM-tV-8cG3gLgf-A+wBYPZWNy2WPGFV3uEdNE7=ad3oq4rXmnw@mail.gmail.com>
     [not found] ` <<<<83vb0fgu83.fsf@gnu.org>
     [not found]   ` <<<443f2e44-5167-48e7-abc6-cce1e243461e@default>

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