Re: How to add pseudo vector types

[Eli Zaretskii]

> From: Stephen Leake <stephen_leake@stephe-leake.org>
> Date: Tue, 20 Jul 2021 09:32:23 -0700
> Cc: Clément Pit-Claudel <cpitclaudel@gmail.com>,
>  emacs-devel@gnu.org
> 
> Computing fontification and indentation must be synchronous.

I wouldn't say "must", but going async on them certainly brings in a
lot more complexity, and we should avoid that unless it's REALLY
needed.