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 619F517C2644 for ; Sun, 24 Jul 2011 14:03:53 +0900 (JST) Received: from funfun.nagaokaut.ac.jp (funfun.nagaokaut.ac.jp [133.44.2.201]) by kankan.nagaokaut.ac.jp (Postfix) with ESMTP id F4147EA65A0 for ; Sun, 24 Jul 2011 14:17:54 +0900 (JST) Received: from localhost (localhost.nagaokaut.ac.jp [127.0.0.1]) by funfun.nagaokaut.ac.jp (Postfix) with ESMTP id 923D88FC57 for ; Sun, 24 Jul 2011 14:17:55 +0900 (JST) X-Virus-Scanned: amavisd-new at funfun.nagaokaut.ac.jp Received: from funfun.nagaokaut.ac.jp ([127.0.0.1]) by localhost (funfun.nagaokaut.ac.jp [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id CiRFcc4N1ECO for ; Sun, 24 Jul 2011 14:17:55 +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 580458FC1F for ; Sun, 24 Jul 2011 14:17:55 +0900 (JST) Received: from carbon.ruby-lang.org (carbon.ruby-lang.org [221.186.184.68]) by voscc.nagaokaut.ac.jp (Postfix) with ESMTP id 030E5952421 for ; Sun, 24 Jul 2011 14:17:53 +0900 (JST) Received: from beryllium.ruby-lang.org (beryllium.ruby-lang.org [127.0.0.1]) by carbon.ruby-lang.org (Postfix) with ESMTP id C7F0C3C21F74D; Sun, 24 Jul 2011 14:13:48 +0900 (JST) Received: from fluorine.ruby-lang.org (www.rubyist.net [210.251.121.216]) by carbon.ruby-lang.org (Postfix) with ESMTP id BDEB23C21EB54 for ; Sun, 24 Jul 2011 14:13:44 +0900 (JST) Received: from ruby-lang.org (localhost [127.0.0.1]) by fluorine.ruby-lang.org (Postfix) with ESMTP id A1E9B3ED3E for ; Sun, 24 Jul 2011 14:13:44 +0900 (JST) Delivered-To: ruby-core@ruby-lang.org Date: Sun, 24 Jul 2011 14:13:44 +0900 Posted: Sun, 24 Jul 2011 14:13:44 +0900 From: Lazaridis Ilias Reply-To: ruby-core@ruby-lang.org Subject: [ruby-core:38445] [Ruby 1.9 - Feature #4893] Literal Instantiation breaks Object Model To: ruby-core@ruby-lang.org Message-Id: References: X-ML-Name: ruby-core X-Mail-Count: 38445 X-MLServer: fml [fml 4.0.3 release (20011202/4.0.3)]; post only (only members can post) X-ML-Info: If you have a question, send e-mail with the body "help" (without quotes) to the address ruby-core-ctl@ruby-lang.org; help= X-Mailer: Redmine X-Spam-Checker-Version: SpamAssassin 3.1.7-deb3 (2006-10-05) on carbon.ruby-lang.org X-Spam-Level: X-Spam-Status: No, score=0.4 required=7.0 tests=BAYES_50,CONTENT_TYPE_PRESENT, FORGED_RCVD_HELO,RCVD_IN_CHINA,RCVD_IN_CHINA_KR,RCVD_IN_TAIWAN, X_MAILER_PRESENT autolearn=disabled version=3.1.7-deb3 X-Redmine-Issue-Author: lazaridis.com X-Redmine-Issue-Assignee: matz X-Redmine-Issue-Id: 4893 X-Redmine-Mailinglistintegration-Message-Ids: 7843 X-Redmine-Project: ruby-19 Auto-Submitted: auto-generated X-Redmine-Site: Ruby Issue Tracking System X-Redmine-Host: redmine.ruby-lang.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Precedence: bulk List-Id: ruby-core.ruby-lang.org List-Software: fml [fml 4.0.3 release (20011202/4.0.3)] List-Post: List-Owner: List-Help: List-Unsubscribe: Issue #4893 has been updated by Lazaridis Ilias. Related issue: #5088 (Refactor and Document vm_method.c / method.h) ---------------------------------------- Feature #4893: Literal Instantiation breaks Object Model http://redmine.ruby-lang.org/issues/4893 Author: Lazaridis Ilias Status: Assigned Priority: Low Assignee: Yukihiro Matsumoto Category: Target version: #String2.rb class String def initialize(val) self.replace(val) puts object_id end def my_method_test 'has method ' end end # command line $ irb irb(main):001:0> original = String.new("original") => "original" irb(main):002:0> load "String2.rb" => true irb(main):003:0> altered = String.new("altered") 21878604 => "altered" irb(main):004:0> altered.my_method_test => "has method " irb(main):005:0> literal = "literal" => "literal" irb(main):006:0> literal.my_method_test => "has method " irb(main):007:0> - The initialize method is an integral part of the class String. >From the moment that "String2.rb" is loaded, the initialize method of class String has been validly redefined. (The behaviour of the String class within the "irb session" is altered) The altered initialize method is now an integral part of the class String. The altered String object behaves as expected (responds to "my_method_test, initialized via redefined initialize method). The String(Literal) object responds to "my_method_test", but it is was not initialized with the redefined initialize method. - The "Literal Instantiation" calls the original (core-C-level) String initialize method instead of the redefined one (user-language-level). This *breaks* the object model. -- http://redmine.ruby-lang.org