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-ASN: AS4713 221.184.0.0/13 X-Spam-Status: No, score=-3.1 required=3.0 tests=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_PASS 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 28687211B4 for ; Mon, 7 Jan 2019 13:41:51 +0000 (UTC) Received: from neon.ruby-lang.org (localhost [IPv6:::1]) by neon.ruby-lang.org (Postfix) with ESMTP id 4D1B0121973; Mon, 7 Jan 2019 22:41:47 +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 3F305120BED for ; Mon, 7 Jan 2019 22:41:45 +0900 (JST) Received: by filter0087p3iad2.sendgrid.net with SMTP id filter0087p3iad2-27114-5C335715-26 2019-01-07 13:41:41.5917944 +0000 UTC m=+304489.959092527 Received: from herokuapp.com (ec2-54-221-36-87.compute-1.amazonaws.com [54.221.36.87]) by ismtpd0014p1iad1.sendgrid.net (SG) with ESMTP id Q6YWJqgNSXqzKSlT71e06Q for ; Mon, 07 Jan 2019 13:41:41.253 +0000 (UTC) Date: Mon, 07 Jan 2019 13:41:42 +0000 (UTC) From: lisa.ugray@gmail.com To: ruby-core@ruby-lang.org Message-ID: References: Mime-Version: 1.0 X-Redmine-MailingListIntegration-Message-Ids: 66345 X-Redmine-Project: ruby-trunk X-Redmine-Issue-Id: 15515 X-Redmine-Issue-Author: lugray X-Redmine-Sender: lugray 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/Ymy4QrNMhiuLXJG8OTL2vJD1yS4p6GxzavEG2VqenfDIaLm7h9zqBGcVDQ7e9T vjmnykYlzwQ8LDjqStEZC9sTsbiKUVuns60Om3A/e6DUZkwhuz1mDQADGKefabzR8dZe58wtVYDNGn KbdF/ggBxm5I4JiUpuU+qn8rFJiQX6JX/VjfMpY2Uh2poC4cKHNQSsRN2w== X-ML-Name: ruby-core X-Mail-Count: 90918 Subject: [ruby-core:90918] [Ruby trunk Bug#15515] OpenStruct raising NoMethodError instead of ArgumentError 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 #15515 has been reported by lugray (Lisa Ugray). ---------------------------------------- Bug #15515: OpenStruct raising NoMethodError instead of ArgumentError https://bugs.ruby-lang.org/issues/15515 * Author: lugray (Lisa Ugray) * Status: Open * Priority: Normal * Assignee: * Target version: * ruby -v: ruby 2.7.0dev (2019-01-07 trunk 66747) [x86_64-darwin18] * Backport: 2.4: UNKNOWN, 2.5: UNKNOWN, 2.6: UNKNOWN ---------------------------------------- When an `OpenStruct` has some attribute `foo`, calling the `foo` method with an argument gives a no method error: ```ruby foo = OpenStuct.new(bar: 'baz') foo.bar(0) # => NoMethodError (undefined method `bar' for #) ``` This is confusing, since `foo.respond_to?(:bar) # => true`. I would expect: ```ruby foo = OpenStuct.new(bar: 'baz') foo.bar(0) # => ArgumentError (wrong number of arguments (given 1, expected 0)) ``` The included fixes this, and adjusts the arity `ArgumentError` for the setter to be in line with the default arity messaging too. ---Files-------------------------------- 0001-ostruct.rb-refine-arity-failure-message.patch (1.26 KB) -- https://bugs.ruby-lang.org/