GNU bug report logs - #30990
Should the byte compiler warn about :type mismatches?

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From: Lars Ingebrigtsen <larsi <at> gnus.org>
To: alex.branham <at> gmail.com
Cc: 30990 <at> debbugs.gnu.org, Stefan Kangas <stefan <at> marxist.se>
Subject: bug#30990: Should the byte compiler warn about :type mismatches?
Date: Fri, 25 Sep 2020 15:36:01 +0200

Lars Ingebrigtsen <larsi <at> gnus.org> writes:

> I don't quite understand what's wrong here:
>
> (defcustom whitespace-indentation-regexp
>   '("^\t*\\(\\( \\{%d\\}\\)+\\)[^\n\t]"
>     . "^ *\\(\t+\\)[^\n]")
> [...]
>   :type '(cons (regexp :tag "Indentation SPACEs")
> 	       (regexp :tag "Indentation TABs"))
>   :group 'whitespace)
>
> Isn't that how you specify a cons of two values?

That wasn't the problem -- the first bit here isn't really a regexp,
it's a string passed to format to yield a regexp.

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no

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