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#48479: 28.0.50; Crash on `read--expression' Date: Wed, 19 May 2021 22:18:24 +0200 Message-ID: <880B56A7-CCF6-4C04-94F4-D49353E56973@acm.org> References: <8635ulvbbx.fsf@protected.rcdrun.com> <835yzhtmt7.fsf@gnu.org> <266671C9-C9F1-4CF1-AA2C-F8D6FD64C470@acm.org> <83r1i4s2kd.fsf@gnu.org> <7D502665-A194-477F-89EF-89E617AA1109@acm.org> <83y2ccqdsw.fsf@gnu.org> <57374764-3AF7-4BC0-8376-671A067329EE@acm.org> <83tun0q9ca.fsf@gnu.org> <87cztmdbbh.fsf@gnus.org> <871ra2czyk.fsf@gnus.org> Mime-Version: 1.0 (Mac OS X Mail 12.4 \(3445.104.20\)) 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="5957"; mail-complaints-to="usenet@ciao.gmane.io" Cc: 48479@debbugs.gnu.org, Stefan Monnier To: Lars Ingebrigtsen Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Wed May 19 22:19:15 2021 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 1ljSex-0001K6-KU for geb-bug-gnu-emacs@m.gmane-mx.org; 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Wed, 19 May 2021 20:18:26 +0000 In-Reply-To: <871ra2czyk.fsf@gnus.org> X-Mailer: Apple Mail (2.3445.104.20) X-CTCH-RefID: str=0001.0A742F28.60A57293.0053, 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-CSC: 0 X-CHA: v=2.3 cv=K5pc4BeI c=1 sm=1 tr=0 a=von4qPfY+hyqc0zmWf0tYQ==:117 a=von4qPfY+hyqc0zmWf0tYQ==:17 a=kj9zAlcOel0A:10 a=M51BFTxLslgA:10 a=OocQHUDgAAAA:8 a=rp4Xq9VdNWowXM7gM1AA:9 a=CjuIK1q_8ugA:10 a=xUZTl98r3Qw_uB5NK3jt:22 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" Xref: news.gmane.io gmane.emacs.bugs:206917 Archived-At: 19 maj 2021 kl. 20.58 skrev Lars Ingebrigtsen : > I was thinking of the >=20 > (condition-case nil > (foo) > (error)) >=20 > case... (I.e., with a missing handler body.) I'm not sure whether > that's supposed to or not. Thank you, and yes, that is valid; a body can be empty (it's an implicit = progn). I don't think an empty body in an error handler warrants a warning more = than anywhere else. Do you? > (condition-case nil > (foo)) >=20 > doesn't give a warning. Right, but its meaning is also well-defined and could even be useful in = a macro. I'm slightly more inclined to accept a warning here, but we are = drifting away from the original question: for syntactically invalid = handlers, like (), can we signal an error? I think we can.