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

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Package: emacs;

Reported by: Alex Branham <alex.branham <at> gmail.com>

Date: Thu, 29 Mar 2018 16:56:02 UTC

Severity: wishlist

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

Bug is archived. No further changes may be made.

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From: Alex Branham <alex.branham <at> gmail.com>
To: 30990 <at> debbugs.gnu.org
Subject: bug#30990: Should the byte compiler warn about :type mismatches?
Date: Thu, 29 Mar 2018 11:55:07 -0500

severity: wishlist

Would it be possible/desirable to make the byte-compiler warn about
:type mismatches with defcustoms? I've noticed that the default values
for quite a few packages I use (both in Emacs [Bug#30901 for example]
and not) do not match. Presumably this would be easier to catch if the
compiler warned about it.

In case I'm not being clear, writing something like this:

(defcustom my-var t
  "Docs."
  :group 'text
  :type 'string)

Would result in a warning during byte compilation along the lines of:

"Warning: Default value for 'my-var' does not match :type".
This bug report was last modified 4 years and 238 days ago.

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