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From: "Óscar Fuentes" <ofv@wanadoo.es>
To: help-gnu-emacs@gnu.org
Subject: Re: Undo defalias
Date: Tue, 28 Feb 2023 16:56:31 +0100	[thread overview]
Message-ID: <871qm9okb4.fsf@telefonica.net> (raw)
In-Reply-To: f1478bc9016c4fbc2032@heytings.org

Gregory Heytings <gregory@heytings.org> writes:

>>
>> Somehow `message' ended aliased to `ignore':
>>
>> C-h f message
>>
>> message is an alias for ‘ignore’.
>> ...
>>
>> To repair this damage (without restarting Emacs) usually I would go
>> to the definition of `message' and evaluate it, but this function is
>> defined in C.
>>
>> How could I bind back `message' to its original function definition?
>>
>
> (defmacro undefalias (symbol)
>   `(progn
>      (fset ,symbol (cadr (get ,symbol 'function-history)))
>      (put ,symbol 'function-history (cddr (get ,symbol 'function-history)))))

Thank you. It didn't work on the affected Emacs session ( (message "foo)
throwed "Symbol’s function definition is void: message"), most likely
because of my previous attempts of fixing it, but it works on emacs -Q.




  reply	other threads:[~2023-02-28 15:56 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-02-28  1:23 Undo defalias Óscar Fuentes
2023-02-28  9:17 ` Gregory Heytings
2023-02-28 15:56   ` Óscar Fuentes [this message]
2023-03-01 20:36     ` Emanuel Berg
2023-03-03 15:29 ` Stefan Monnier via Users list for the GNU Emacs text editor
2023-03-03 15:37   ` Gregory Heytings
2023-03-03 15:49     ` Stefan Monnier via Users list for the GNU Emacs text editor
2023-03-03 15:52       ` Eli Zaretskii
2023-03-03 16:01       ` Gregory Heytings
2023-03-03 16:00   ` Óscar Fuentes
2023-03-03 16:17     ` Gregory Heytings
2023-03-03 16:33     ` Stefan Monnier via Users list for the GNU Emacs text editor
2023-03-03 21:11       ` Óscar Fuentes
2023-03-05  9:32         ` Madhu
2023-03-03 22:58       ` Gregory Heytings
2023-03-04  0:05         ` Stefan Monnier

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