Re: use-package :after ??

[Eli Zaretskii <eliz@gnu.org>]

> From: David Masterson <dsmasterson@gmail.com>
> Cc: help-gnu-emacs@gnu.org
> Date: Thu, 11 May 2023 15:04:50 -0700
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> > In general, when I'm told that :after causes the package FOO to be
> > loaded after another package, my interpretation is that at the end of
> > loading that other package Emacs will load package FOO.  If that is
> > not what you understand, could you take another look at the
> > description of :after in the use-package manual and tell what is
> > missing there to convey this meaning?
> 
> Basically, I think the sections on :if, :after, and :requires should
> make clear what will (should?) happen if package loading is deferred
> (individually or globally). Do these happen when use-package is called
> or when autoload occurs?  Demand loading should mean they're immediately
> evaluated.  Deferred and mixed is more complicated.

Sorry, I still don't see the difficulty.  The manual says that using
:after causes one package to be loaded immediately after the other
one--how is this unclear?  Please bear with me, because I really don't
understand what bothers you.  It is crystal clear to me.  So there's
some misunderstanding here.

> For instance, what happens if A should be after B, but you never define
> B with use-package?

Isn't it clear?  If B is never loaded, A will _never_ be loaded in
that case.  It doesn't matter whether B is loaded via use-package or
by some other means.  How is this NOT clear from the description?

> Or B is demand loaded later?

Later than what?  A will _always_ be loaded as the last step in
loading B, whenever the latter happens.

> Or make the rule explicit in infodoc that :after does what it does
> regardless of demand/defer.

So is the difficulty because of :defer and/or :demand?  If so, please
ask questions that involve those.  Because so far you were asking
about :after alone, and there I see nothing unclear.