From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Spencer Baugh Newsgroups: gmane.emacs.devel Subject: Re: unwind-protect within while-no-input Date: Wed, 08 May 2024 09:44:20 -0400 Organization: Jane Street Capital Message-ID: References: <86msp1a24a.fsf@gnu.org> <87le4l2btq.fsf@yahoo.com> <874jb8il6t.fsf@web.de> <87y18kh6eg.fsf@web.de> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="935"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) To: emacs-devel@gnu.org Cancel-Lock: sha1:76gfJn9kgSD22j7v0OEZvBwSYSg= Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Wed May 08 15:56:11 2024 Return-path: Envelope-to: ged-emacs-devel@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 1s4hmE-0000CH-NR for ged-emacs-devel@m.gmane-mx.org; Wed, 08 May 2024 15:56:10 +0200 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1s4hlR-00029R-NH; Wed, 08 May 2024 09:55:21 -0400 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 1s4hay-0004fe-4q for emacs-devel@gnu.org; Wed, 08 May 2024 09:44:33 -0400 Original-Received: from ciao.gmane.io ([116.202.254.214]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1s4haw-00022O-5d for emacs-devel@gnu.org; Wed, 08 May 2024 09:44:31 -0400 Original-Received: from list by ciao.gmane.io with local (Exim 4.92) (envelope-from ) id 1s4hat-0005dk-8v for emacs-devel@gnu.org; Wed, 08 May 2024 15:44:27 +0200 X-Injected-Via-Gmane: http://gmane.org/ Received-SPF: pass client-ip=116.202.254.214; envelope-from=ged-emacs-devel@m.gmane-mx.org; helo=ciao.gmane.io X-Spam_score_int: -16 X-Spam_score: -1.7 X-Spam_bar: - X-Spam_report: (-1.7 / 5.0 requ) BAYES_00=-1.9, HEADER_FROM_DIFFERENT_DOMAINS=0.249, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-Mailman-Approved-At: Wed, 08 May 2024 09:55:11 -0400 X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.devel:319007 Archived-At: Michael Heerdegen via "Emacs development discussions." writes: > Michael Heerdegen via "Emacs development discussions." > writes: > >> `unwind-protect' works as expected: >> >> #+begin_src emacs-lisp >> (let (foo) >> (while-no-input >> (unwind-protect (while t nil) >> (setq foo 'interrupted))) >> (message "foo: %s" foo)) >> #+end_src > > Note the unwind forms are executed even if you quit: > > #+begin_src emacs-lisp > (let (foo) > (while-no-input > (unwind-protect (while t nil) > (setq foo 'interrupted) > (message "foo: %s" foo))) > (message "foo: %s" foo)) > #+end_src > > Am I'm missing something? > > Michael. Yes: it doesn't actually work. Try this: (let (foo) (while-no-input (unwind-protect (while t nil) (sleep-for 10) (setq foo 'interrupted) (message "foo: %s" foo))) (message "foo: %s" foo)) C-x C-e aaaa Output: foo: nil