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 24F6319C037F for ; Wed, 25 Nov 2015 18:35:46 +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 73060B5D882 for ; Wed, 25 Nov 2015 19:06:50 +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 21FA018CC7D0 for ; Wed, 25 Nov 2015 19:06:51 +0900 (JST) Received: from [221.186.184.76] (localhost [IPv6:::1]) by neon.ruby-lang.org (Postfix) with ESMTP id 04CBD1204E0; Wed, 25 Nov 2015 19:06:49 +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 3B02312046A for ; Wed, 25 Nov 2015 19:06:44 +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=eVwlKvt8GDH0BDm7w9/Gs6TXa4E=; b=NHYY45uGzD3kEdb8MC 8e7UUTT+90CZA8Yu+hrtDKyXs55m8vxHyn/tl2rqSBiueouu0EORM9tvolXzWqZ1 8nm7NfXUDR1J34afJUGFsUUoPE01rzvnBsoEm7yldOtxC1fJ9meyHG/Yz74KXf8z 1iqu6QC6IvheUdoJAkggy1frc= Received: by filter0425p1mdw1.sendgrid.net with SMTP id filter0425p1mdw1.2835.5655882D8 2015-11-25 10:06:37.167487656 +0000 UTC Received: from herokuapp.com (ec2-54-211-76-164.compute-1.amazonaws.com [54.211.76.164]) by ismtpd0001p1iad1.sendgrid.net (SG) with ESMTP id S_JGHRo8R2ety-GyJRvkkg Wed, 25 Nov 2015 10:06:37.074 +0000 (UTC) Date: Wed, 25 Nov 2015 10:06:37 +0000 From: bregey@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: 46355 X-Redmine-Project: ruby-trunk X-Redmine-Issue-Id: 11734 X-Redmine-Issue-Author: kaoss X-Redmine-Sender: kaoss 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/Ymy4QrNMhiuLXJG8OTL2vJD1yS4xA2fN4vW0AVlvRd2M8MIgtlJBszO/0Z2tIE gRHsKws3m/aDwjtY0ZIIqBjUx5qxdSiDBeJ337bcM3GyWw/RJ193OOqYcV8GLDMtIzVVEQgCAi8YLx Kmzgdg5PYKVN4M8= X-ML-Name: ruby-core X-Mail-Count: 71680 Subject: [ruby-core:71680] [Ruby trunk - Feature #11734] Improved ternary operator 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 #11734 has been updated by Yurko Bregey. Hans Mackowiak wrote: > why not: > > ```ruby > (x = some_long_expression) ? x.to_s : 'foobar' > ``` think it's not good. Ruby 2.2.3p173 shows warning: ~~~ warning: found = in conditional, should be == ~~~ ---------------------------------------- Feature #11734: Improved ternary operator https://bugs.ruby-lang.org/issues/11734#change-55081 * Author: Yurko Bregey * Status: Open * Priority: Normal * Assignee: ---------------------------------------- In ternary operator it would be nice to be able to pass expression result from *condition* into *value_if_true/value_if_false* in such way: `some_long_expression ? &.to_s : 'foobar'` where `&` refers to `some_long_expression` Instead of doing: `some_long_expression ? some_long_expression.to_s : 'foobar'` or: `result = some_very_very_long_expression result ? result.to_s : 'foobar'` -- https://bugs.ruby-lang.org/