GNU bug report logs - #29193
26.0.90; Using (thing-at-point 'sexp) in flymake-diag-region might be suboptimal

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From: Dmitry Gutov <dgutov <at> yandex.ru>
To: João Távora <joaotavora <at> gmail.com>
Cc: Glenn Morris <rgm <at> gnu.org>, 29193 <at> debbugs.gnu.org
Subject: bug#29193: 26.0.90; Using (thing-at-point 'sexp) in flymake-diag-region might be suboptimal
Date: Fri, 18 Dec 2020 17:22:18 +0200

On 18.12.2020 13:42, João Távora wrote:

> I think this is rather a thingatpt.el issue, which makes no mention of
> match-data destruction.  Regardless, it's decent enough to do that in
> flymake-diag-region so I pushed save-match-data a bit higher.

By default we assume that any function can destroy match-data (and only 
a certain set doesn't).

But it's an easy mistake to make, especially given the fairly opaque 
implementation of (end-of-thing 'symbol).

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