GNU bug report logs - #59347
29.0.50; `:family` face setting ignored

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From: Stefan Monnier <monnier <at> iro.umontreal.ca>
To: Po Lu <luangruo <at> yahoo.com>
Cc: Gregory Heytings <gregory <at> heytings.org>, Eli Zaretskii <eliz <at> gnu.org>, 59347 <at> debbugs.gnu.org
Subject: bug#59347: 29.0.50; `:family` face setting ignored
Date: Mon, 12 Dec 2022 10:30:10 -0500

> And what was the problem with a list?  How many cycles is traversing a
> list?  How many time will it take for your CPU to perform everything?
> Premature optimization is the root of all evil.

It was not premature optimization.
It was the simpler way to write the code.

Your patch made the C code more complex (not just slower) for the
benefit of a cleaner ELisp-level interface.  A better way to get that
same result would be to write an ELisp function on top of Gregory's
bitmask variable.
This way, you'd get a clean&simple&efficient C code still with
a convenient ELisp API.

Any chance someone could do that so we can move on?


        Stefan

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