GNU bug report logs - #59900
30.0.50; map pattern in pcase causes a byte-compile error

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Package: emacs;

Reported by: Akira Komamura <akira.komamura <at> gmail.com>

Date: Thu, 8 Dec 2022 09:51:03 UTC

Severity: normal

Found in version 30.0.50

Done: Eli Zaretskii <eliz <at> gnu.org>

Bug is archived. No further changes may be made.

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From: Akira Komamura <akira.komamura <at> gmail.com>
To: 59900 <at> debbugs.gnu.org
Subject: bug#59900: 30.0.50; map pattern in pcase causes a byte-compile error
Date: Thu, 08 Dec 2022 16:50:25 +0900

After upgrading to Emacs 29, some packages throw byte-compile errors
due to use of `map' pattern in `pcase':

> org-bookmark-heading.el:176:6: Error: Unknown map pattern: (map
> 'filename 'outline-path 'id 'front-context-string 'indirectp)

The error can be avoided by `require'ing `map' at compile time in the
library depending on pcase:

(eval-when-compile
  ;; Support map pattern in pcase
  (require 'map))

However, this was not necessary in the previous versions.

As a similar example, the `rx' pattern for `pcase' is autoloaded (see
`rx.el'), so shouldn't the `map' pattern support be autoloaded as well?

;;;###autoload
(pcase-defmacro rx (&rest regexps)
  ...
This bug report was last modified 2 years and 214 days ago.

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