GNU bug report logs - #79485
31.0.50; Loaded files inherit read-symbol-shorthands

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From: Eli Zaretskii <eliz <at> gnu.org>
To: "David J. Rosenbaum" <djr7c4 <at> gmail.com>, João Távora <joaotavora <at> gmail.com>
Cc: 79485 <at> debbugs.gnu.org
Subject: bug#79485: 31.0.50; Loaded files inherit read-symbol-shorthands
Date: Mon, 22 Sep 2025 09:41:19 +0300

> From: "David J. Rosenbaum" <djr7c4 <at> gmail.com>
> Date: Sun, 21 Sep 2025 16:58:06 -0700
> 
> Hello,
> 
> I am using read-symbol-shorthands to alias db to
> cl-destructuring-bind. It works but causes problems when I load a file
> containing a symbol that starts with db. For example, one can use emacs -Q
> with the following file.
> 
> ================================================================
> (require 'tramp-gvfs)
> 
> ;; Local Variables:
> ;; read-symbol-shorthands: (("db" . "cl-destructuring-bind"))
> ;; End:
> ================================================================
> 
> To reproduce, save the above and load it with M-x load-file. This
> results in the following error.
> 
> ================================================================
> Loading /home/david/tmp/read-symbol-example.el (source)...
> byte-code: Cannot open load file: No such file or directory, cl-destructuring-bindus
> ================================================================
> 
> The problem seems to be that tramp-gvfs requires dbus and db is being
> replaced with cl-destructuring-bind. IMO, loaded files should not inherit
> shorthands from files that require them since those shorthands are only
> valid for that particular file.

Thanks, I hope João (CC'ed) will have some ideas or suggestions.

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