From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Mattias =?UTF-8?Q?Engdeg=C3=A5rd?= Newsgroups: gmane.emacs.bugs Subject: bug#59576: 29.0.50; named-let doesn't support dynamic binding Date: Sat, 26 Nov 2022 10:48:54 +0100 Message-ID: <8DE91C19-0401-4448-82E6-64AA96C677CE@acm.org> References: Mime-Version: 1.0 (Mac OS X Mail 14.0 \(3654.120.0.1.13\)) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="19438"; mail-complaints-to="usenet@ciao.gmane.io" Cc: Stefan Monnier , 59576@debbugs.gnu.org To: Tom Levy Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Sat Nov 26 10:50:15 2022 Return-path: 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 ) id 1oyrp9-0004ou-GY for geb-bug-gnu-emacs@m.gmane-mx.org; Sat, 26 Nov 2022 10:50:15 +0100 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1oyrp2-0000Ws-5P; Sat, 26 Nov 2022 04:50:08 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oyrox-0000WX-4H for bug-gnu-emacs@gnu.org; Sat, 26 Nov 2022 04:50:06 -0500 Original-Received: from debbugs.gnu.org ([209.51.188.43]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1oyrow-0008DZ-H2 for bug-gnu-emacs@gnu.org; Sat, 26 Nov 2022 04:50:02 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1oyrov-0003RJ-Kb for bug-gnu-emacs@gnu.org; Sat, 26 Nov 2022 04:50:01 -0500 X-Loop: help-debbugs@gnu.org In-Reply-To: Resent-From: Mattias =?UTF-8?Q?Engdeg=C3=A5rd?= Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sat, 26 Nov 2022 09:50:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 59576 X-GNU-PR-Package: emacs Original-Received: via spool by 59576-submit@debbugs.gnu.org id=B59576.166945615313159 (code B ref 59576); Sat, 26 Nov 2022 09:50:01 +0000 Original-Received: (at 59576) by debbugs.gnu.org; 26 Nov 2022 09:49:13 +0000 Original-Received: from localhost ([127.0.0.1]:37853 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1oyro9-0003QA-GZ for submit@debbugs.gnu.org; Sat, 26 Nov 2022 04:49:13 -0500 Original-Received: from mail1456c50.megamailservers.eu ([91.136.14.56]:53592 helo=mail266c50.megamailservers.eu) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1oyro6-0003Pv-Pg for 59576@debbugs.gnu.org; Sat, 26 Nov 2022 04:49:12 -0500 X-Authenticated-User: mattiase@bredband.net DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=megamailservers.eu; s=maildub; t=1669456143; bh=VKWZi7LFpW0Bbl+IZ9NMrYZVYUjw9WxVi9UvQ+dIooU=; h=From:Subject:Date:Cc:To:From; b=Lm2rnFyz1WPpvyoOSr1h10cRy9JAy5hN1Q7sRxNYCjQ9Fiwxhj0td+B2g7s0JiFuJ DOJ0v/3yBhCRq0OidHz3TibbFTrTe+pLwWc/vXyLTZqg3Cn3q9rDTBXIV3FNN5QXOy fli33yLwLx4sVVvBs/FhWlkw6dgN3wROb8yxkyHE= Feedback-ID: mattiase@acm.or Original-Received: from smtpclient.apple (c188-150-171-209.bredband.tele2.se [188.150.171.209]) (authenticated bits=0) by mail266c50.megamailservers.eu (8.14.9/8.13.1) with ESMTP id 2AQ9mwai127283; Sat, 26 Nov 2022 09:49:00 +0000 X-Mailer: Apple Mail (2.3654.120.0.1.13) X-CTCH-RefID: str=0001.0A782F28.6381E10F.004E, ss=1, re=0.000, recu=0.000, reip=0.000, cl=1, cld=1, fgs=0 X-CTCH-VOD: Unknown X-CTCH-Spam: Unknown X-CTCH-Score: 0.000 X-CTCH-Flags: 0 X-CTCH-ScoreCust: 0.000 X-Origin-Country: SE 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" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.bugs:249061 Archived-At: `named-let` being a looping construct, it makes little sense to use it = in dynamic binding where TCO opportunities are severely limited. Ideally = we should just signal an error if an attempt to use it in dynbound code = is made. Users will thank us for that (at least they should, if they = have any sense). Second-best would be to inhibit all TCO in dynbound code but whom would = that really benefit? (Regarding your proposal, generating worse code in lexbind mode isn't a = wonderful outcome.)