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From: Philip Kaludercic <philipk@posteo.net>
To: Stefan Monnier <monnier@iro.umontreal.ca>
Cc: Daniel Mendler <mail@daniel-mendler.de>,  emacs-devel@gnu.org
Subject: Re: [elpa] externals/osm 05ac461360: Bail out earlier if dependencies are missing
Date: Wed, 11 May 2022 06:34:48 +0000	[thread overview]
Message-ID: <87lev84lx3.fsf@posteo.net> (raw)
In-Reply-To: <jwv35hgq1lq.fsf-monnier+emacs@gnu.org> (Stefan Monnier's message of "Tue, 10 May 2022 21:53:27 -0400")

Stefan Monnier <monnier@iro.umontreal.ca> writes:

> Daniel Mendler [2022-05-11 00:07:31] wrote:
>> On 5/10/22 23:00, Stefan Monnier wrote:
>
>> The alternative would be to replicate the check in all the
>> entry points to the package, the osm-mode, the autoloaded osm-*
>> commands, which would require more code.
>
> The "right" place for such checks is as soon as you know that you *will*
> definitely encounter an error.
>
> When the file is being loaded, you don't know yet that an error is
> inevitable because you don't know yet whether the loaded code will
> be called.

My understanding in this case is that the basic functionality of osm.el
requires efficient JSON parsing to be available.  Without this, the
package becomes "prohibitively slow" (at least according to bug#55278).

Perhaps it would be better to add a helper function that does the check
and issues an error/warning, and call this at all entry-points?



      reply	other threads:[~2022-05-11  6:34 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <165221267003.11226.2207874159602256273@vcs2.savannah.gnu.org>
     [not found] ` <20220510195750.558C1C01683@vcs2.savannah.gnu.org>
2022-05-10 21:00   ` [elpa] externals/osm 05ac461360: Bail out earlier if dependencies are missing Stefan Monnier
2022-05-10 22:07     ` Daniel Mendler
2022-05-11  1:53       ` Stefan Monnier
2022-05-11  6:34         ` Philip Kaludercic [this message]

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