From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on dcvr.yhbt.net X-Spam-Level: X-Spam-ASN: AS4713 221.184.0.0/13 X-Spam-Status: No, score=-3.0 required=3.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_MED,SPF_PASS,T_DKIM_INVALID,T_RP_MATCHES_RCVD shortcircuit=no autolearn=ham autolearn_force=no version=3.4.0 Received: from neon.ruby-lang.org (neon.ruby-lang.org [221.186.184.75]) by dcvr.yhbt.net (Postfix) with ESMTP id DECEB2027C for ; Fri, 2 Jun 2017 15:25:29 +0000 (UTC) Received: from neon.ruby-lang.org (localhost [IPv6:::1]) by neon.ruby-lang.org (Postfix) with ESMTP id B566912074F; Sat, 3 Jun 2017 00:25:27 +0900 (JST) Received: from o1678916x28.outbound-mail.sendgrid.net (o1678916x28.outbound-mail.sendgrid.net [167.89.16.28]) by neon.ruby-lang.org (Postfix) with ESMTPS id D9D65120640 for ; Sat, 3 Jun 2017 00:25:25 +0900 (JST) DKIM-Signature: v=1; a=rsa-sha1; c=relaxed/relaxed; d=sendgrid.me; h=from:to:references:subject:mime-version:content-type:content-transfer-encoding:list-id; s=smtpapi; bh=6OdqCBETkjFRfCBnKETEAjeidcQ=; b=MaoOd1ZuJwNNIMf4JH mLGarfrXyLwI+bgovCccD3Akr/Acc160rj4w1brTdkzYZtDYsCnhqlX8GruyMWz9 k4UJUrEuYzL60RBU9Xae/qSo0zlqqe7LGG47FrfMeUlp9VMExJ1pR2YhO6TiVpkT 4ICX3mmCcu8VzTdJRC3bJgi3Y= Received: by filter1188p1mdw1.sendgrid.net with SMTP id filter1188p1mdw1-16582-59318360-5C 2017-06-02 15:25:20.997724189 +0000 UTC Received: from herokuapp.com (ec2-54-163-17-188.compute-1.amazonaws.com [54.163.17.188]) by ismtpd0001p1iad1.sendgrid.net (SG) with ESMTP id IEm5EiIYQKyNcEyMtu104g Fri, 02 Jun 2017 15:25:20.868 +0000 (UTC) Date: Fri, 02 Jun 2017 15:25:20 +0000 From: shyouhei@ruby-lang.org To: ruby-core@ruby-lang.org Message-ID: References: Mime-Version: 1.0 X-Redmine-MailingListIntegration-Message-Ids: 56562 X-Redmine-Project: ruby-trunk X-Redmine-Issue-Id: 13623 X-Redmine-Issue-Author: caschip X-Redmine-Sender: shyouhei 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/Ymy4QrNMhiuLXJG8OTL2vJD1yS71hMKIO0/MxE42nZoAW6kV+2DpLQK7oDo8ZL d6WRvcm3ZV7RyRWwwx3UmKcTFf5m4ZcyklfcWKsopIdBAVwGXBuFDS+sxhQWRMMchLz4RBWPE3bSLv 6rJpjuCfdrtABlMd+mcvCzM8Lr4MQJsvOfxanpy//4QSd5vSQ7G0PpXvQQ== X-ML-Name: ruby-core X-Mail-Count: 81532 Subject: [ruby-core:81532] [Ruby trunk Bug#13623] meta-programming, adding sub-module fails with syntax error 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 #13623 has been updated by shyouhei (Shyouhei Urabe). Well const_get('Foo') is syntactically a non-constant while const_get('Foo')::Bar is. This is the ultimate reason why working_meta works but failing_meta fails. If you want to meta-program you have to be explicit like const_get('Foo').module_eval { ... }. ---------------------------------------- Bug #13623: meta-programming, adding sub-module fails with syntax error https://bugs.ruby-lang.org/issues/13623#change-65237 * Author: caschip (Aad Schippers) * Status: Open * Priority: Normal * Assignee: * Target version: * ruby -v: ruby 2.4.0p0 (2016-12-24 revision 57164) [x86_64-linux] * Backport: 2.2: UNKNOWN, 2.3: UNKNOWN, 2.4: UNKNOWN ---------------------------------------- The goal is to add a sub-module to a higher level module. The higher level module is derived from its name in a string. This works in one case and gives an unexpected syntax error in another case. failing_meta:4: syntax error, unexpected '\n', expecting &. or :: or '[' or '.' failing_meta:8: syntax error, unexpected keyword_end, expecting end-of-input ---Files-------------------------------- no_meta (72 Bytes) working_meta (82 Bytes) failing_meta (95 Bytes) -- https://bugs.ruby-lang.org/