From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on dcvr.yhbt.net X-Spam-Level: X-Spam-Status: No, score=-2.8 required=3.0 tests=AWL,BAYES_00, DKIM_ADSP_CUSTOM_MED,FORGED_GMAIL_RCVD,FREEMAIL_FORGED_FROMDOMAIN, FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY shortcircuit=no autolearn=ham autolearn_force=no version=3.4.2 Received: from neon.ruby-lang.org (neon.ruby-lang.org [221.186.184.75]) by dcvr.yhbt.net (Postfix) with ESMTP id 7BC121F5AE for ; Sat, 1 Aug 2020 08:34:25 +0000 (UTC) Received: from neon.ruby-lang.org (localhost [IPv6:::1]) by neon.ruby-lang.org (Postfix) with ESMTP id 3EAC51208D9; Sat, 1 Aug 2020 17:33:55 +0900 (JST) Received: from o1678948x4.outbound-mail.sendgrid.net (o1678948x4.outbound-mail.sendgrid.net [167.89.48.4]) by neon.ruby-lang.org (Postfix) with ESMTPS id 4773D120B9E for ; Sat, 1 Aug 2020 17:33:53 +0900 (JST) Received: by filterdrecv-p3mdw1-7ff865655c-r62j4 with SMTP id filterdrecv-p3mdw1-7ff865655c-r62j4-19-5F25290D-8 2020-08-01 08:34:21.170930459 +0000 UTC m=+224281.848593524 Received: from herokuapp.com (unknown) by geopod-ismtpd-5-1 (SG) with ESMTP id QdeMln9ZT6St9O3bFfcTzA for ; Sat, 01 Aug 2020 08:34:21.051 +0000 (UTC) Date: Sat, 01 Aug 2020 08:34:21 +0000 (UTC) From: nagachika00@gmail.com Message-ID: References: Mime-Version: 1.0 X-Redmine-MailingListIntegration-Message-Ids: 75259 X-Redmine-Project: ruby-master X-Redmine-Issue-Tracker: Bug X-Redmine-Issue-Id: 16931 X-Redmine-Issue-Author: nobu X-Redmine-Sender: nagachika X-Mailer: Redmine X-Redmine-Host: bugs.ruby-lang.org X-Redmine-Site: Ruby Issue Tracking System X-Auto-Response-Suppress: All Auto-Submitted: auto-generated X-SG-EID: =?us-ascii?Q?O2wxg26uOO6cft6GjkEp=2FGevTnH9lR=2FEdG60AX3F8=2FBvL=2Fl3Sn166kVt+M6pPM?= =?us-ascii?Q?YmAZWkQAazlCS4XZX40N3NAgRHZoZNoSFl9eevR?= =?us-ascii?Q?GPVSXFec+34kHZsfdOwAcfOK+YmbZ0nDxhwvi=2Ft?= =?us-ascii?Q?eSHBtPvAd6tS5wIBS5yVay0foyiqsrT7HCeqW=2F2?= =?us-ascii?Q?cEd9soI3ElePLXQlEtC7CmmzJxjSu15=2F1hjSQ1E?= =?us-ascii?Q?0lSmOcj50lNsL402k=3D?= To: ruby-core@ruby-lang.org X-ML-Name: ruby-core X-Mail-Count: 99431 Subject: [ruby-core:99431] [Ruby master Bug#16931] `defined?` against a protected method call on an inherited instance returns wrong `nil` 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: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: ruby-core-bounces@ruby-lang.org Sender: "ruby-core" Issue #16931 has been updated by nagachika (Tomoyuki Chikanaga). Backport changed from 2.5: REQUIRED, 2.6: REQUIRED, 2.7: REQUIRED to 2.5: REQUIRED, 2.6: REQUIRED, 2.7: DONE ruby_2_7 23d130a9ddcaf766d6ce309f8518b434a2537fc1 merged revision(s) d05f04d27dd86c67e4a8dfff4392f806cf577bdf. ---------------------------------------- Bug #16931: `defined?` against a protected method call on an inherited instance returns wrong `nil` https://bugs.ruby-lang.org/issues/16931#change-86883 * Author: nobu (Nobuyoshi Nakada) * Status: Closed * Priority: Normal * ruby -v: 2.8.0dev (2020-06-02T08:21:03Z master 56ca006784) * Backport: 2.5: REQUIRED, 2.6: REQUIRED, 2.7: DONE ---------------------------------------- The following code shows `:callable` first, but `nil` next, since 1.9. If the method is callable, `defined?` expression has to return truthy value. ``` ruby class A def foo :callable end protected :foo def t(x) x.foo end def q(x) defined?(x.foo) end end class B :callable p a.q(b) #=> nil ``` -- https://bugs.ruby-lang.org/