From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Noam Postavsky Newsgroups: gmane.emacs.bugs Subject: bug#31641: 26.1; iter-do variable not left unused warning Date: Tue, 29 May 2018 18:13:50 -0400 Message-ID: <87in76cdpd.fsf@gmail.com> References: <20180529131230.kijx2bkcvcqsyhgg@nullprogram.com> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Trace: blaine.gmane.org 1527631995 22465 195.159.176.226 (29 May 2018 22:13:15 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Tue, 29 May 2018 22:13:15 +0000 (UTC) User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.1 (gnu/linux) Cc: 31641@debbugs.gnu.org To: Christopher Wellons Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Wed May 30 00:13:11 2018 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 1fNmre-0005i7-9h for geb-bug-gnu-emacs@m.gmane.org; Wed, 30 May 2018 00:13:10 +0200 Original-Received: from localhost ([::1]:35257 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fNmtl-00022p-A3 for geb-bug-gnu-emacs@m.gmane.org; Tue, 29 May 2018 18:15:21 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:43606) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fNmtV-0001ze-TF for bug-gnu-emacs@gnu.org; Tue, 29 May 2018 18:15:11 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fNmtS-0005rQ-Mi for bug-gnu-emacs@gnu.org; Tue, 29 May 2018 18:15:05 -0400 Original-Received: from debbugs.gnu.org ([208.118.235.43]:46485) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1fNmtS-0005rE-JI for bug-gnu-emacs@gnu.org; Tue, 29 May 2018 18:15:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1fNmtS-0002fc-7S for bug-gnu-emacs@gnu.org; Tue, 29 May 2018 18:15:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Noam Postavsky Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Tue, 29 May 2018 22:15:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 31641 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 31641-submit@debbugs.gnu.org id=B31641.152763204610184 (code B ref 31641); Tue, 29 May 2018 22:15:02 +0000 Original-Received: (at 31641) by debbugs.gnu.org; 29 May 2018 22:14:06 +0000 Original-Received: from localhost ([127.0.0.1]:54382 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1fNmsY-0002e7-9V for submit@debbugs.gnu.org; Tue, 29 May 2018 18:14:06 -0400 Original-Received: from mail-it0-f44.google.com ([209.85.214.44]:54937) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1fNmsR-0002dM-J9; Tue, 29 May 2018 18:14:02 -0400 Original-Received: by mail-it0-f44.google.com with SMTP id 76-v6so5394890itx.4; Tue, 29 May 2018 15:13:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:references:date:in-reply-to:message-id :user-agent:mime-version:content-transfer-encoding; bh=tGpjA5qEZvfZ4KdvhkN99vKZ04cmfk1IwgNmcoVBvow=; b=Juw7fa1twUfTJafnbAqqd52lTXZZSPGRArRJLV6g2e8ZNe/gzl005aX/OcXYGQ1ILk U+paE5DJRuAmrzGksMTXd3sCOVPUGmM//XcHkECWL+K7zEnTFoAlWDhgB7w4njjHy3Nt deeTMQEoBiBiFP9T+NfRqutrXGWww+8t+HV7YQOWbPznX14MJmBR33rE7odajhcwEqjJ aZWJe3EEZ9Uxtt9Y6oIRB7Mm8iIEFdxxWGRWmswzis3eJhqSjr1s9eY6bu0R+t0+R1qY PZ5Eek0DB2AJq3EMZkegthlaaI0+R3krpMsBJJYbKJpPZpMYOd/xVPjjZBeRqFp4yhw0 Gi7g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:references:date:in-reply-to :message-id:user-agent:mime-version:content-transfer-encoding; bh=tGpjA5qEZvfZ4KdvhkN99vKZ04cmfk1IwgNmcoVBvow=; b=tezXckzbfcvDP/HaOetA5nMsQWlHH3WMjNfSjGMmQuFxgHadiD77dV9kgJWAjaxOcR c0xpvPEIgjQ5+rWeFuXWoCG6J3WF/4rYwgAbbrPe8pbE/8h/Kf0PcdWW1Fbh7Zc8zQ7X gupoXZfOVWqu1NkuEMonOuE8qBAZRIY9El6pKotTew3zoRLrejrx1HuScwVzyEv3r/Kd Nw1EJQEwV0TYoIjMw9CxMvyb2dPH2NGeDKj0OCIFdVoNVoNsMYGlPqj5Eau9CMQ2nuIy 1OrmeEV3a3q4QiPUJtvu60Gkla6pJh+vEdJ65vSiypQeAiTB92o6oqTOi/24G9DXT4if lGbg== X-Gm-Message-State: ALKqPwdExgkIjHFY0BBQSu8pvstUVz4HBcvvL4YZjAIeQh07jx9iliW3 mIv56bGMIiYGeFsVucD17qzwZQ== X-Google-Smtp-Source: ADUXVKJON9BOKrogNOuArMTTtmR3b8+hmdCRNo6ILcSdG2oeOvA/9K5vj9uSMmc3/gFezOMpt2rJOw== X-Received: by 2002:a6b:e90d:: with SMTP id u13-v6mr214635iof.22.1527632033652; Tue, 29 May 2018 15:13:53 -0700 (PDT) Original-Received: from zebian (cbl-45-2-119-34.yyz.frontiernetworks.ca. [45.2.119.34]) by smtp.googlemail.com with ESMTPSA id q21-v6sm11171672itb.4.2018.05.29.15.13.52 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Tue, 29 May 2018 15:13:52 -0700 (PDT) In-Reply-To: <20180529131230.kijx2bkcvcqsyhgg@nullprogram.com> (Christopher Wellons's message of "Tue, 29 May 2018 09:12:30 -0400") 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:146717 Archived-At: tags 31641 + confirmed severity 31641 minor quit Christopher Wellons writes: > When byte-compiling an iter-do form with a variable intended to be > left unused, the compiler emits a false warning: > > ;;; -*- lexical-binding: t; -*- > (require 'generator) > (iter-do (_ i)) > ;; -> "Warning: variable =E2=80=98_=E2=80=99 not left unused" Looking at the expansion, I guess the setf should be dropped if the variable name starts with _. (let (_ #3=3D#:iter-do-result11 (#1=3D#:iter-do-iterator-done8 nil) (#2=3D#:iter-do-iterator10 i)) (while (not #1#) (condition-case #4=3D#:iter-do-condition9 (setf _ (iter-next #2#)) (iter-end-of-sequence (setf #3# (cdr #4#)) (setf #1# t))) (unless #1#)) #3#)