From: Ignacio Casso <ignaciocasso@hotmail.com>
To: Stefan Monnier <monnier@iro.umontreal.ca>
Cc: michael_heerdegen@web.de, 54399@debbugs.gnu.org, larsi@gnus.org
Subject: bug#54399: 27.2; Problems with (let ((custom-variable ...)) (autoload-function ...))
Date: Tue, 12 Apr 2022 17:27:04 +0200 [thread overview]
Message-ID: <PAXPR06MB7760DF105CE1221A4B6B1FAFC6ED9@PAXPR06MB7760.eurprd06.prod.outlook.com> (raw)
In-Reply-To: <jwvlewae47o.fsf-monnier+emacs@gnu.org>
Stefan Monnier <monnier@iro.umontreal.ca> writes:
>>>>> ;; default defined, buffer-local undefined
>>>>> (defvar var1 "default")
>>>>> (let ((var1 "inside let")) (default-value 'var1)) ;; returns "inside let"
>>>>>
>>>>> ;; default defined, buffer-local defined
>>>>> (defvar var2 "default")
>>>>> (setq-local var2 "buffer-local")
>>>>> (let ((var2 "inside let")) (default-value 'var2)) ;; returns "default"
>>>>
>>>> I would expect both snippets to return the same.
>>>
>>> That's because you expect the "default" in `default-value` refers to the
>>> let-nesting dimension rather than the buffer dimension.
>>
>> No, I just expect to refer to any of those consistently, I don't mind
>> which one. If it's the buffer dimension, even inside let bindings, both
>> forms should return "default".
>
> If there's no buffer-local value and `default-value` operates in the
> buffer-local dimension, why do you expect it to return a different value
> from `symbol-value`?
>
>
> Stefan
Probably because I don't really understand all the concepts involved
here. But I expect functions that operate on the default value of the
buffer-local dimension to behave the same way regardless of whether the
current buffer happens to have actually a local value. So if
`default-value' returns something different as `symbol-value' when there
is a buffer-local value, I expect the same to occur when there is no
buffer-local value.
But never mind, I just wanted to ensure that the current behavior was
the expected one before updating the docstring for `default-boundp', and
you already confirmed that. And this is an uncommon corner case for
which I can't think of real use cases, aside from the one of autoloading
inside a let binding of a variable a file which defines that (custom)
variable, for which we are already using `default-toplevel-value' and
`set-default-toplevel-value'. So let's leave it at that.
next prev parent reply other threads:[~2022-04-12 15:27 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-15 11:50 bug#54399: 27.2; Problems with (let ((custom-variable ...)) (autoload-function ...)) Ignacio Casso
2022-03-17 11:23 ` Lars Ingebrigtsen
2022-03-18 0:22 ` Michael Heerdegen
2022-03-18 1:02 ` Michael Heerdegen
2022-03-18 9:32 ` Lars Ingebrigtsen
2022-03-18 9:38 ` Ignacio Casso
2022-04-12 13:18 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-04-12 13:23 ` Ignacio Casso
2022-04-12 13:55 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-04-12 9:13 ` Ignacio Casso
2022-04-12 11:38 ` Eli Zaretskii
2022-04-12 12:16 ` Ignacio Casso
2022-04-12 13:35 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-04-12 14:27 ` Ignacio Casso
2022-04-12 15:04 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-04-12 15:27 ` Ignacio Casso [this message]
2022-04-12 22:15 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-04-13 15:26 ` Ignacio Casso
2022-04-13 0:24 ` Michael Heerdegen
2022-04-13 3:26 ` Glenn Morris
2022-04-13 3:43 ` Michael Heerdegen
2022-04-12 15:24 ` Eli Zaretskii
2022-04-13 17:22 ` Ignacio Casso
2022-04-12 13:19 ` Stefan Monnier via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-04-12 13:51 ` Ignacio Casso
2022-04-12 15:22 ` Eli Zaretskii
2022-04-13 0:06 ` Michael Heerdegen
2022-04-13 12:08 ` Ignacio Casso
2022-05-12 2:32 ` Lars Ingebrigtsen
2022-05-12 6:58 ` Ignacio Casso
2022-05-12 7:34 ` Eli Zaretskii
2022-05-12 8:14 ` Ignacio Casso
2022-05-12 8:36 ` Eli Zaretskii
2022-05-12 8:41 ` Ignacio Casso
2022-05-12 9:40 ` Eli Zaretskii
2022-05-12 11:49 ` Lars Ingebrigtsen
2022-06-09 15:02 ` Lars Ingebrigtsen
2022-06-09 21:19 ` Ignacio Casso
2022-06-10 9:13 ` Lars Ingebrigtsen
2022-06-10 14:01 ` dick
2022-06-11 10:51 ` Lars Ingebrigtsen
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