GNU bug report logs - #20153
24.4.91; destructive add-face-text-property and string deep copying

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Package: emacs;

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

Date: Fri, 20 Mar 2015 12:33:02 UTC

Severity: minor

Tags: fixed

Merged with 27433

Found in versions 24.4.91, 25.2

Fixed in version 27.1

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

Bug is archived. No further changes may be made.

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From: Eli Zaretskii <eliz <at> gnu.org>
To: Lars Ingebrigtsen <larsi <at> gnus.org>
Cc: 20153 <at> debbugs.gnu.org, ohwoeowho <at> gmail.com
Subject: bug#20153: 24.4.91; destructive add-face-text-property and string deep copying
Date: Wed, 09 Oct 2019 20:10:16 +0300

> From: Lars Ingebrigtsen <larsi <at> gnus.org>
> Date: Wed, 09 Oct 2019 05:04:03 +0200
> Cc: 20153 <at> debbugs.gnu.org
> 
> Instead I've now changed add_properties (and add_text_properties_1) to
> take a bool parameter to say whether they're allowed to be destructive
> or not, and make the add-face-text-property call that with false as the
> parameter if the object is a string.  This fixes the test case for me
> and should hopefully have no measurable performance impact.

Isn't that a backward-incompatible change?
This bug report was last modified 5 years and 230 days ago.

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