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bug#20164: 25.0.50; Do not tell users that `x-show-tip' is internal

From: Eli Zaretskii
Subject: bug#20164: 25.0.50; Do not tell users that `x-show-tip' is internal
Date: Fri, 02 Aug 2019 21:57:39 +0300

> From: Lars Ingebrigtsen <address@hidden>
> Cc: address@hidden,  address@hidden
> Date: Fri, 02 Aug 2019 20:03:54 +0200
> Eli Zaretskii <address@hidden> writes:
> >> I agree that the calling conventions for `x-show-tip' seems to be much
> >> nicer than `tooltip-show'.  
> >
> > If you do, please explain it to me, because the above arguments don't
> > convince me, certainly not that x-show-tip's API is "nicer".  Maybe
> > I'm missing something.
> I think explicit parameters to a function is almost always to be
> preferred to binding variables and then calling a function that takes no
> parameters.  In this case, you're supposed bind `tooltip-{x,y}-offset'
> according to the doc string.

Only if you for some reason don't like the defaults.  Which should
happen rarely, if ever.

> >   https://lists.gnu.org/archive/html/emacs-pretest-bug/2007-03/msg00261.html
> >
> > The conclusion to take out of that discussion is that whoever uses
> > x-show-tip should know very well what they are doing, which is another
> > way of saying "kids, don't try that at home", a.k.a. "an internal
> > function".
> Makes sense to me, and I'm closing this bug report.


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