From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Original-To: poffice@blade.nagaokaut.ac.jp Delivered-To: poffice@blade.nagaokaut.ac.jp Received: from kankan.nagaokaut.ac.jp (kankan.nagaokaut.ac.jp [133.44.2.24]) by blade.nagaokaut.ac.jp (Postfix) with ESMTP id 843B417DC0DF for ; Wed, 15 Oct 2014 12:51:31 +0900 (JST) Received: from funfun.nagaokaut.ac.jp (smtp.nagaokaut.ac.jp [133.44.2.201]) by kankan.nagaokaut.ac.jp (Postfix) with ESMTP id AC8D4B5D8B0 for ; Wed, 15 Oct 2014 12:36:09 +0900 (JST) Received: from funfun.nagaokaut.ac.jp (localhost.nagaokaut.ac.jp [127.0.0.1]) by funfun.nagaokaut.ac.jp (Postfix) with ESMTP id 2723197A82B for ; Wed, 15 Oct 2014 12:36:11 +0900 (JST) X-Virus-Scanned: amavisd-new at nagaokaut.ac.jp Authentication-Results: funfun.nagaokaut.ac.jp (amavisd-new); dkim=fail (1024-bit key) reason="fail (message has been altered)" header.d=sendgrid.me Received: from funfun.nagaokaut.ac.jp ([127.0.0.1]) by funfun.nagaokaut.ac.jp (funfun.nagaokaut.ac.jp [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id da5FbzFGoLaD for ; Wed, 15 Oct 2014 12:36:10 +0900 (JST) Received: from voscc.nagaokaut.ac.jp (voscc.nagaokaut.ac.jp [133.44.1.100]) by funfun.nagaokaut.ac.jp (Postfix) with ESMTP id CAD5E97A843 for ; Wed, 15 Oct 2014 12:36:10 +0900 (JST) Received: from neon.ruby-lang.org (neon.ruby-lang.org [221.186.184.75]) by voscc.nagaokaut.ac.jp (Postfix) with ESMTP id 9EA5995243A for ; Wed, 15 Oct 2014 12:36:08 +0900 (JST) Received: from [221.186.184.76] (localhost [IPv6:::1]) by neon.ruby-lang.org (Postfix) with ESMTP id B0FAD12044C; Wed, 15 Oct 2014 12:36:00 +0900 (JST) X-Original-To: ruby-core@ruby-lang.org Delivered-To: ruby-core@ruby-lang.org Received: from o10.shared.sendgrid.net (o10.shared.sendgrid.net [173.193.132.135]) by neon.ruby-lang.org (Postfix) with ESMTPS id 9A17E12040C for ; Wed, 15 Oct 2014 12:35:56 +0900 (JST) DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=sendgrid.me; h=from:to:references:subject:mime-version:content-type:content-transfer-encoding:list-id; s=smtpapi; bh=ekxz5EfULhA8bt0q6j6spp71gEo=; b=tiHI27OlOYI5EW0ENN dTBCAZphOzN4v+dga5Uro4ZtkU0z7hsb9M9vtSKIr1iGDA50HVGmFcr9Dhhlgv48 ky9XGvnpBIGsF7ScaTT6p3Me8KJAjo3O7p48E5WdXwS8+B5Sneatjh1TUtuCEX8i m1n1TXWVz6BFCDxwOrfQ33QPI= Received: by filter0223p1mdw1.sendgrid.net with SMTP id filter0223p1mdw1.22384.543DEB9314 2014-10-15 03:35:52.666686237 +0000 UTC Received: from herokuapp.com (ec2-54-237-200-188.compute-1.amazonaws.com [54.237.200.188]) by ismtpd-021.iad1.sendgrid.net (SG) with ESMTP id 14911e04c23.51ef.4cfcef for ; Wed, 15 Oct 2014 03:35:52 +0000 (GMT) Date: Wed, 15 Oct 2014 03:35:52 +0000 From: knu@ruby-lang.org To: ruby-core@ruby-lang.org Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Redmine-MailingListIntegration-Message-Ids: 40013 X-Redmine-Project: ruby-trunk X-Redmine-Issue-Id: 10388 X-Redmine-Issue-Author: knu X-Redmine-Issue-Assignee: matz X-Redmine-Sender: knu X-Mailer: Redmine X-Redmine-Host: bugs.ruby-lang.org X-Redmine-Site: Ruby Issue Tracking System X-Auto-Response-Suppress: OOF Auto-Submitted: auto-generated X-SG-EID: ync6xU2WACa70kv/Ymy4QrNMhiuLXJG8OTL2vJD1yS6/Sy/qxfgztHfvrDkmw3hnPW4Eu3HRwWeF18+qKeeZKCz6JFPGa3kLUN1ZyJ/mf3AukUA8p4OCWYqtKMZpKG7TgvyknKCajxIHq4l3HZu0bT/GYZPUuoea7HaoKJiGhrj3ePEF4uv0Ea85K84eDWnG X-SendGrid-Contentd-ID: {"test_id":"1413344153"} X-ML-Name: ruby-core X-Mail-Count: 65714 Subject: [ruby-core:65714] [ruby-trunk - Bug #10388] [Open] Operator precedence problem in multiple assignment (massign) X-BeenThere: ruby-core@ruby-lang.org X-Mailman-Version: 2.1.15 Precedence: list Reply-To: Ruby developers List-Id: Ruby developers List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: ruby-core-bounces@ruby-lang.org Sender: "ruby-core" Issue #10388 has been reported by Akinori MUSHA. ---------------------------------------- Bug #10388: Operator precedence problem in multiple assignment (massign) https://bugs.ruby-lang.org/issues/10388 * Author: Akinori MUSHA * Status: Open * Priority: Low * Assignee: Yukihiro Matsumoto * Category: syntax * Target version: * ruby -v: ruby 2.2.0dev (2014-10-13 trunk 47904) [x86_64-freebsd10] * Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN ---------------------------------------- I understand it wouldn't be easy to fix this, but since I happened to find it here it goes. - `a, b = c = 1, 2` is currently taken as `a, b = (c = 1), 2`; I'd expect it to be taken as `a, b = (c = 1, 2)`. - `a, b = *c = 1, 2` is currently taken as `a, b = *(c = 1), 2`; I'd expect it to be taken as `a, b = *(c = 1, 2)` or even `a, b = (*c = 1, 2)`. - `a, b = c, d = 1, 2` is currently taken as `a, b = (c), (d = 1), 2`; I'd expect it to be taken as `a, b = (c, d = 1, 2)`. Should they be fixed/changed or not, issuing a warning would be greatly helpful. -- https://bugs.ruby-lang.org/