From mboxrd@z Thu Jan  1 00:00:00 1970
Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail
From: Lars Ingebrigtsen <larsi@gnus.org>
Newsgroups: gmane.emacs.bugs
Subject: bug#36566: 27.0.50; debug is sometimes horribly slow
Date: Sun, 15 May 2022 18:25:11 +0200
Message-ID: <87pmkehifs.fsf@gnus.org>
References: <87r26yvb4r.fsf@web.de> <874l2eosa7.fsf@gmail.com>
 <87mufh8jj2.fsf@runbox.com> <87v9tza6gg.fsf@gmail.com>
 <875zlvj453.fsf@runbox.com> <87bkwp2pjr.fsf@gnus.org>
 <87a6c72v1t.fsf@runbox.com> <87k0bb16jc.fsf@web.de>
 <874k2ed828.fsf@gnus.org> <875ym931t9.fsf@runbox.com>
 <87mtfl1kxt.fsf@gnus.org> <87h75s3gx8.fsf@web.de>
 <87pmkgl52s.fsf@gnus.org> <jwvk0aofcs4.fsf-monnier+emacs@gnu.org>
 <87lev4jeyq.fsf@gnus.org> <jwv5ym8hzvn.fsf-monnier+emacs@gnu.org>
 <87czggjdeo.fsf@gnus.org> <878rr4jbr3.fsf@gnus.org>
 <jwvtu9sgd33.fsf-monnier+emacs@gnu.org> <87r14vhtju.fsf@gnus.org>
 <jwv35hag4ie.fsf-monnier+emacs@gnu.org>
Mime-Version: 1.0
Content-Type: text/plain
Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214";
	logging-data="2483"; mail-complaints-to="usenet@ciao.gmane.io"
User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux)
Cc: Michael Heerdegen <michael_heerdegen@web.de>,
 Gemini Lasswell <gazally@runbox.com>, 36566@debbugs.gnu.org,
 Noam Postavsky <npostavs@gmail.com>
To: Stefan Monnier <monnier@iro.umontreal.ca>
Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Sun May 15 18:26:09 2022
Return-path: <bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org>
Envelope-to: geb-bug-gnu-emacs@m.gmane-mx.org
Original-Received: from lists.gnu.org ([209.51.188.17])
	by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)
	(Exim 4.92)
	(envelope-from <bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org>)
	id 1nqH4L-0000R3-Lt
	for geb-bug-gnu-emacs@m.gmane-mx.org; Sun, 15 May 2022 18:26:09 +0200
Original-Received: from localhost ([::1]:46436 helo=lists1p.gnu.org)
	by lists.gnu.org with esmtp (Exim 4.90_1)
	(envelope-from <bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org>)
	id 1nqH4K-0003fI-Ou
	for geb-bug-gnu-emacs@m.gmane-mx.org; Sun, 15 May 2022 12:26:08 -0400
Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:53456)
 by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)
 (Exim 4.90_1) (envelope-from <Debian-debbugs@debbugs.gnu.org>)
 id 1nqH4E-0003co-1I
 for bug-gnu-emacs@gnu.org; Sun, 15 May 2022 12:26:02 -0400
Original-Received: from debbugs.gnu.org ([209.51.188.43]:56622)
 by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128)
 (Exim 4.90_1) (envelope-from <Debian-debbugs@debbugs.gnu.org>)
 id 1nqH4D-0006cw-PH
 for bug-gnu-emacs@gnu.org; Sun, 15 May 2022 12:26:01 -0400
Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2)
 (envelope-from <Debian-debbugs@debbugs.gnu.org>) id 1nqH4D-0003Hi-Js
 for bug-gnu-emacs@gnu.org; Sun, 15 May 2022 12:26:01 -0400
X-Loop: help-debbugs@gnu.org
Resent-From: Lars Ingebrigtsen <larsi@gnus.org>
Original-Sender: "Debbugs-submit" <debbugs-submit-bounces@debbugs.gnu.org>
Resent-CC: bug-gnu-emacs@gnu.org
Resent-Date: Sun, 15 May 2022 16:26:01 +0000
Resent-Message-ID: <handler.36566.B36566.165263192312577@debbugs.gnu.org>
Resent-Sender: help-debbugs@gnu.org
X-GNU-PR-Message: followup 36566
X-GNU-PR-Package: emacs
X-GNU-PR-Keywords: moreinfo
Original-Received: via spool by 36566-submit@debbugs.gnu.org id=B36566.165263192312577
 (code B ref 36566); Sun, 15 May 2022 16:26:01 +0000
Original-Received: (at 36566) by debbugs.gnu.org; 15 May 2022 16:25:23 +0000
Original-Received: from localhost ([127.0.0.1]:50519 helo=debbugs.gnu.org)
 by debbugs.gnu.org with esmtp (Exim 4.84_2)
 (envelope-from <debbugs-submit-bounces@debbugs.gnu.org>)
 id 1nqH3b-0003Gm-Lu
 for submit@debbugs.gnu.org; Sun, 15 May 2022 12:25:23 -0400
Original-Received: from quimby.gnus.org ([95.216.78.240]:60856)
 by debbugs.gnu.org with esmtp (Exim 4.84_2)
 (envelope-from <larsi@gnus.org>) id 1nqH3a-0003GZ-Cw
 for 36566@debbugs.gnu.org; Sun, 15 May 2022 12:25:22 -0400
DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnus.org;
 s=20200322; h=Content-Type:MIME-Version:Message-ID:In-Reply-To:Date:
 References:Subject:Cc:To:From:Sender:Reply-To:Content-Transfer-Encoding:
 Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender:
 Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:
 List-Subscribe:List-Post:List-Owner:List-Archive;
 bh=MYgveeBMgnnYc6+ESTDRCj9K0RLM0X/IGOJhmTDzziI=; b=BiXCIEYfYXhW5Au2+0vUcZLhZz
 fEO3qjmqNa4ddbcQ8M4nJrX1gBn61vGIgssRdb1UHsAgh1bgsQNsG09UwJtdE4J+0oa3LM3ulcr5w
 PKZ8VRluTyZ/SmHc4fXtAr2JmDFczLQ7S9gAaAlIji2Y+vBhoWd0hJ+djb7HMF9lo0jo=;
Original-Received: from [84.212.220.105] (helo=xo)
 by quimby.gnus.org with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256)
 (Exim 4.92) (envelope-from <larsi@gnus.org>)
 id 1nqH3P-0002Fx-Ty; Sun, 15 May 2022 18:25:14 +0200
In-Reply-To: <jwv35hag4ie.fsf-monnier+emacs@gnu.org> (Stefan Monnier's message
 of "Sun, 15 May 2022 12:13:19 -0400")
X-BeenThere: debbugs-submit@debbugs.gnu.org
X-Mailman-Version: 2.1.18
Precedence: list
X-BeenThere: bug-gnu-emacs@gnu.org
List-Id: "Bug reports for GNU Emacs,
 the Swiss army knife of text editors" <bug-gnu-emacs.gnu.org>
List-Unsubscribe: <https://lists.gnu.org/mailman/options/bug-gnu-emacs>,
 <mailto:bug-gnu-emacs-request@gnu.org?subject=unsubscribe>
List-Archive: <https://lists.gnu.org/archive/html/bug-gnu-emacs>
List-Post: <mailto:bug-gnu-emacs@gnu.org>
List-Help: <mailto:bug-gnu-emacs-request@gnu.org?subject=help>
List-Subscribe: <https://lists.gnu.org/mailman/listinfo/bug-gnu-emacs>,
 <mailto:bug-gnu-emacs-request@gnu.org?subject=subscribe>
Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org
Original-Sender: "bug-gnu-emacs"
 <bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org>
Xref: news.gmane.io gmane.emacs.bugs:232333
Archived-At: <http://permalink.gmane.org/gmane.emacs.bugs/232333>

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

>> But this reminds me -- why do we have `cl-print' anyway?
>
> Because we want to let packages use `cl-defmethod` to provide their own
> output syntax for their objects.
>
>> Shouldn't the C version handle printing things nicely?
>
> The C code doesn't really know about cl-defstructs (or advice objects).

Wouldn't it make sense to teach the C `prin1' about those (and also call
out to the Lisp level for the objects that have a specialised print
syntax)?  We've got something vaguely similar with
`print-unreadable-function', for instance.

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no