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 05E5719C002C for ; Fri, 20 Nov 2015 11:07:50 +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 E50E4B5D88D for ; Fri, 20 Nov 2015 11:38:40 +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 3AC7218CC816 for ; Fri, 20 Nov 2015 11:38:41 +0900 (JST) Received: from [221.186.184.76] (localhost [IPv6:::1]) by neon.ruby-lang.org (Postfix) with ESMTP id 09119120458; Fri, 20 Nov 2015 11:38:40 +0900 (JST) X-Original-To: ruby-core@ruby-lang.org Delivered-To: ruby-core@ruby-lang.org Received: from o2.heroku.sendgrid.net (o2.heroku.sendgrid.net [67.228.50.55]) by neon.ruby-lang.org (Postfix) with ESMTPS id E077A12003B for ; Fri, 20 Nov 2015 11:38:36 +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=6JXwk2xau6873ukr4uBhN0X7CR8=; b=xKSjP63XT+HN9qlNhh Vf0FFD0NCSQDjtjbGTFgo/IK1ZdBVvxFobqoFnxbOKU5938zPuqRWrrYz/+EIufG qdO24nKIGQSWRX3rp6tg5JwYQZrUWec/5mfum8mLHU8NLeaO8KSvyAtcNkkjsqtb oS3h3EWUJbJ3glwudszMabgjM= Received: by filter0421p1mdw1.sendgrid.net with SMTP id filter0421p1mdw1.22664.564E87A651 2015-11-20 02:38:30.614540221 +0000 UTC Received: from herokuapp.com (ec2-54-147-147-100.compute-1.amazonaws.com [54.147.147.100]) by ismtpd0005p1iad1.sendgrid.net (SG) with ESMTP id 5AG6LcG_R86ybfR2yTt0NQ for ; Fri, 20 Nov 2015 02:38:30.539 +0000 (UTC) Date: Fri, 20 Nov 2015 02:38:30 +0000 From: vsalikhov@gmail.com 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: 46263 X-Redmine-Project: ruby-trunk X-Redmine-Issue-Id: 11718 X-Redmine-Issue-Author: vais X-Redmine-Sender: vais 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/Ymy4QrNMhiuLXJG8OTL2vJD1yS5o4phQtNwhSxLNyea9E6jdzlzWvJMHpW4PIW RwHYAompTCA6fYhkSGh5huPs+uBItPNCMUNu/vZBDfZN7gSYnpOKglpKT0Yrn5gVBDW1w7l1kizvch GcpxkFc57G85hSO/FU/wieMeNmrlbGdn1lYY X-ML-Name: ruby-core X-Mail-Count: 71598 Subject: [ruby-core:71598] [Ruby trunk - Bug #11718] [Open] 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 reported by Vais Salikhov. ---------------------------------------- Bug #11718: Constant access on `nil` https://bugs.ruby-lang.org/issues/11718 * Author: Vais Salikhov * Status: Open * Priority: Normal * Assignee: * 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/