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 2EA6C19E0037 for ; Tue, 8 Dec 2015 15:10:19 +0900 (JST) Received: from voscc.nagaokaut.ac.jp (voscc.nagaokaut.ac.jp [133.44.1.100]) by kankan.nagaokaut.ac.jp (Postfix) with ESMTP id BF812B5D8B6 for ; Tue, 8 Dec 2015 15:41:58 +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 5102418CC7B8 for ; Tue, 8 Dec 2015 15:41:59 +0900 (JST) Received: from [221.186.184.76] (localhost [IPv6:::1]) by neon.ruby-lang.org (Postfix) with ESMTP id E9E60120473; Tue, 8 Dec 2015 15:41:57 +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 278E112044E for ; Tue, 8 Dec 2015 15:41:53 +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=oFzR03rNVz+c9XfLMOsJYhrQWVk=; b=zWcyPKgZzM2HhOmYHs gxteati4DD0C2F2/XljWcjAJAiimGNKPQah9OY5g7h885qUKLUqLWZxreEgrQcup 46xcIWm2cJrc297hjKU9yFcPO+XmkDj0vouiO4EtQbh5TGT42TbwtMRmfACldAD5 DQGB9r6Kpzve46NM/TppuyTA4= Received: by filter0631p1mdw1.sendgrid.net with SMTP id filter0631p1mdw1.23044.56667BAE39 2015-12-08 06:41:50.732628788 +0000 UTC Received: from herokuapp.com (ec2-54-242-3-143.compute-1.amazonaws.com [54.242.3.143]) by ismtpd0002p1iad1.sendgrid.net (SG) with ESMTP id fIMOsy64Sry_4R1zKBTq6A Tue, 08 Dec 2015 06:41:50.825 +0000 (UTC) Date: Tue, 08 Dec 2015 06:41:50 +0000 From: hanmac@gmx.de 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: 46638 X-Redmine-Project: ruby-trunk X-Redmine-Issue-Id: 11718 X-Redmine-Issue-Author: vais X-Redmine-Issue-Assignee: ko1 X-Redmine-Sender: Hanmac 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: ync6xU2WACa70kv/Ymy4QrNMhiuLXJG8OTL2vJD1yS6eWLsEnYmF8jtF39ZEQgSKydhhLzNx1bMMxl gn4y3Y6iAbU5UMeM2AqqD9DomfEK/RTdUYZxWyJN1b3RhzACis9onMeydKBwTFQYlbqdRZIBmFkOjI zP7Bf+9DKQp9RZhSRqS8BiIJXI1AZbBB/YrG X-ML-Name: ruby-core X-Mail-Count: 71940 Subject: [ruby-core:71940] [Ruby trunk - Bug #11718] Constant access on `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: , Errors-To: ruby-core-bounces@ruby-lang.org Sender: "ruby-core" Issue #11718 has been updated by Hans Mackowiak. @Koichi: good that you classify it, for a moment i thought that might be an feature ;P ---------------------------------------- Bug #11718: Constant access on `nil` https://bugs.ruby-lang.org/issues/11718#change-55347 * Author: Vais Salikhov * Status: Open * Priority: Normal * Assignee: Koichi Sasada * ruby -v: ruby 2.2.3p173 (2015-08-18 revision 51636) [x86_64-linux] * Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN, 2.2: UNKNOWN ---------------------------------------- It is possible to access top-level constants by doing `nil::CONSTANT`, which looks like a bug [according to Matz](https://github.com/opal/opal/issues/1197#issuecomment-158078778). Here are a couple of examples: ``` $ ruby -ve "Foo = 123; p nil::Foo" ruby 2.2.3p173 (2015-08-18 revision 51636) [x86_64-linux] 123 ``` ``` $ ruby -ve "class A; Foo = 456; end; p nil::A::Foo" ruby 2.2.3p173 (2015-08-18 revision 51636) [x86_64-linux] 456 ``` Thanks! -- https://bugs.ruby-lang.org/