GNU bug report logs - #20123
24.4.91; Unwarranted "Unused lexical argument" for condition-case

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Package: emacs;

Reported by: Oleh Krehel <ohwoeowho <at> gmail.com>

Date: Mon, 16 Mar 2015 18:48:01 UTC

Severity: minor

Merged with 15103

Found in versions 24.3.50, 24.4.91

Fixed in version 25.1

Done: Stefan Monnier <monnier <at> IRO.UMontreal.CA>

Bug is archived. No further changes may be made.

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Oleh Krehel <ohwoeowho <at> gmail.com>
To: bug-gnu-emacs <at> gnu.org
Subject: 24.4.91; Unwarranted "Unused lexical argument" for condition-case
Date: Mon, 16 Mar 2015 19:42:39 +0100

Hello,

Here's an example code:

    (define-error 'unsupported-mode-error "Unsupported mode")
    (condition-case e
        (if (eq 'a 'a)
            (message "test")
          (signal 'unsupported-mode-error major-mode))
      (unsupported-mode-error
       (signal (car e) (cdr e)))
      (error
       (message "error")))

As you can see, I'm trying to re-throw some of the errors, so the variable `e' is used
inside `condition-case'. But I still get an "Unused lexical argument" warning.

regards,
Oleh
This bug report was last modified 10 years and 72 days ago.

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