From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.bugs Subject: bug#25295: Represent eieio objects using object-print in backtraces and edebug Date: Wed, 04 Jan 2017 21:11:15 -0500 Message-ID: References: <87pokampa4.fsf@ericabrahamsen.net> <8760m2mmlq.fsf@ericabrahamsen.net> <87lguq5r87.fsf@ericabrahamsen.net> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: blaine.gmane.org 1483582341 21045 195.159.176.226 (5 Jan 2017 02:12:21 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Thu, 5 Jan 2017 02:12:21 +0000 (UTC) User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.2.50 (gnu/linux) Cc: 25295@debbugs.gnu.org To: Eric Abrahamsen Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Thu Jan 05 03:12:16 2017 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1cOxXF-0003xx-Cd for geb-bug-gnu-emacs@m.gmane.org; Thu, 05 Jan 2017 03:12:09 +0100 Original-Received: from localhost ([::1]:43291 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cOxXI-0000Lf-01 for geb-bug-gnu-emacs@m.gmane.org; Wed, 04 Jan 2017 21:12:12 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:44842) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cOxXC-0000KS-Tr for bug-gnu-emacs@gnu.org; Wed, 04 Jan 2017 21:12:07 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cOxX9-0000r9-Ne for bug-gnu-emacs@gnu.org; Wed, 04 Jan 2017 21:12:06 -0500 Original-Received: from debbugs.gnu.org ([208.118.235.43]:54451) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1cOxX9-0000r5-KK for bug-gnu-emacs@gnu.org; Wed, 04 Jan 2017 21:12:03 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1cOxX8-0000a3-8G for bug-gnu-emacs@gnu.org; Wed, 04 Jan 2017 21:12:02 -0500 X-Loop: help-debbugs@gnu.org Resent-From: Stefan Monnier Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Thu, 05 Jan 2017 02:12:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 25295 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 25295-submit@debbugs.gnu.org id=B25295.14835822802169 (code B ref 25295); Thu, 05 Jan 2017 02:12:02 +0000 Original-Received: (at 25295) by debbugs.gnu.org; 5 Jan 2017 02:11:20 +0000 Original-Received: from localhost ([127.0.0.1]:41617 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1cOxWS-0000Yv-1F for submit@debbugs.gnu.org; Wed, 04 Jan 2017 21:11:20 -0500 Original-Received: from chene.dit.umontreal.ca ([132.204.246.20]:57199) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1cOxWQ-0000Yn-A5 for 25295@debbugs.gnu.org; Wed, 04 Jan 2017 21:11:18 -0500 Original-Received: from ceviche.home (lechon.iro.umontreal.ca [132.204.27.242]) by chene.dit.umontreal.ca (8.14.7/8.14.1) with ESMTP id v052BGHM002719; Wed, 4 Jan 2017 21:11:16 -0500 Original-Received: by ceviche.home (Postfix, from userid 20848) id 0133E6625E; Wed, 4 Jan 2017 21:11:15 -0500 (EST) In-Reply-To: (Stefan Monnier's message of "Wed, 04 Jan 2017 20:51:14 -0500") X-NAI-Spam-Flag: NO X-NAI-Spam-Threshold: 5 X-NAI-Spam-Score: 0 X-NAI-Spam-Rules: 2 Rules triggered EDT_SA_DN_PASS=0, RV5909=0 X-NAI-Spam-Version: 2.3.0.9418 : core <5909> : inlines <5617> : streams <1727691> : uri <2352667> X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 208.118.235.43 X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.org gmane.emacs.bugs:127768 Archived-At: > Maybe the better solution would be to make `prin1` (and `format`, ..) > signal errors. Instead, we could provide the printer with a special > prin1-like function which basically "continues" the print job in the > C code. Actually, print.c is already setup to be (at least partially) reentrant (for the case `printcharfun` is a function), so maybe making it fully reentrant won't be too hard. But we'd still want to provide some ad-hoc prin1-like function which continues the print job rather than starting a new nested one; this is needed e.g. if the custom printer wants to print a value V but V has already been printed so it should be printed as a reference #NN# to the previous one. Stefan