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 BAF4E17C24FA for ; Mon, 18 Jul 2011 02:53:42 +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 02CE6EA6794 for ; Mon, 18 Jul 2011 03:06:51 +0900 (JST) Received: from localhost (localhost.nagaokaut.ac.jp [127.0.0.1]) by funfun.nagaokaut.ac.jp (Postfix) with ESMTP id EC4018FC59 for ; Mon, 18 Jul 2011 03:06:50 +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 jtcGL24Vfrag for ; Mon, 18 Jul 2011 03:06:50 +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 CACD68FC1B for ; Mon, 18 Jul 2011 03:06:50 +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 85ACF952425 for ; Mon, 18 Jul 2011 03:06:50 +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 009853C21E316; Mon, 18 Jul 2011 03:06:47 +0900 (JST) Received: from fluorine.ruby-lang.org (www.rubyist.net [210.251.121.216]) by carbon.ruby-lang.org (Postfix) with ESMTP id CA0A63C21E313 for ; Mon, 18 Jul 2011 03:06:41 +0900 (JST) Received: from ruby-lang.org (localhost [127.0.0.1]) by fluorine.ruby-lang.org (Postfix) with ESMTP id AE9B63ED2E for ; Mon, 18 Jul 2011 03:06:41 +0900 (JST) Delivered-To: ruby-core@ruby-lang.org Date: Mon, 18 Jul 2011 03:06:41 +0900 Posted: Mon, 18 Jul 2011 03:06:41 +0900 From: Lazaridis Ilias Reply-To: ruby-core@ruby-lang.org Subject: [ruby-core:38146] [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: 38146 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=0.1 required=7.0 tests=BAYES_50,CONTENT_TYPE_PRESENT, FORGED_RCVD_HELO,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: 7483 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. Lazaridis Ilias wrote: > Not "perfect", but should be stable and adoptable to other classes. > > Needs possibly some renaming, rb_set_call_flags -> rb_set_redefined_flags rb_obj_call_init_fast -> rb_call_init_if_redefined This name change "clarifies" that the flag belongs not to the class-object, but to the method-object (method-struct). So it's going "naturally" one step closer to the suggestion below: > and finally a review of Mr. Holms tip subjecting YARV/vm_init_redefined_flag(void). But once more, I need to take distance for some days. Now, distance again! ---------------------------------------- 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