From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on starla X-Spam-Level: X-Spam-Status: No, score=-1.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_PASS,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 Received: from nue.mailmanlists.eu (nue.mailmanlists.eu [94.130.110.93]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by dcvr.yhbt.net (Postfix) with ESMTPS id 868E21F5CB for ; Tue, 1 Oct 2024 07:13:02 +0000 (UTC) Authentication-Results: dcvr.yhbt.net; dkim=pass (1024-bit key; unprotected) header.d=ml.ruby-lang.org header.i=@ml.ruby-lang.org header.a=rsa-sha256 header.s=mail header.b=Cyf4E30N; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=ruby-lang.org header.i=@ruby-lang.org header.a=rsa-sha256 header.s=s1 header.b=c3M0dVs7; dkim-atps=neutral DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ml.ruby-lang.org; s=mail; t=1727766779; bh=3PVv5qjOA3iBYr+RLX2KtJaFZbJMhc0jsFedbQSea3A=; h=Date:References:To:Reply-To:Subject:List-Id:List-Archive: List-Help:List-Owner:List-Post:List-Subscribe:List-Unsubscribe: From:Cc:From; b=Cyf4E30NQDn7NORnWFI0qoGpCXsnoJ4FVTnndOVDi7iUu6ObDt6+y41rOkIPSYw15 8cnp4WrskULU9tzYJr2UpJRa+bFDGm+HPo+JGXvyC9mRPhCic3gAblgsysgFD/i6Cu elB29pBsDsb4arYnVmIE5dGV21Oi0JEwbWKNh8qg= Received: from nue.mailmanlists.eu (localhost [IPv6:::1]) by nue.mailmanlists.eu (Postfix) with ESMTP id B80474403E for ; Tue, 1 Oct 2024 07:12:59 +0000 (UTC) Authentication-Results: nue.mailmanlists.eu; dkim=pass (2048-bit key; unprotected) header.d=ruby-lang.org header.i=@ruby-lang.org header.a=rsa-sha256 header.s=s1 header.b=c3M0dVs7; dkim-atps=neutral Received: from s.wfbtzhsw.outbound-mail.sendgrid.net (s.wfbtzhsw.outbound-mail.sendgrid.net [159.183.224.105]) by nue.mailmanlists.eu (Postfix) with ESMTPS id A106744155 for ; Tue, 1 Oct 2024 07:11:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ruby-lang.org; h=from:references:subject:mime-version:content-type: content-transfer-encoding:list-id:to:cc:content-type:from:subject:to; s=s1; bh=dgYvzz6Fdla8ru1gvitWT9ZBeCZgVtHEiRvTv/Sr15k=; b=c3M0dVs7EEExM15zBt+zOoCwJC183Ldj9nDU0z2HuCeqBFYq+zSzm4BZfekEVxSLb6p7 5mY3l9or3NmAq64VEbVZfFecsXuva+2qZASFkK3TItYnguIwzSvVKL8NILlEzpZxYvs0co xTJrQcQzVxeY9CLK1c5ksCHag2hDGrMxb2CxJnHJWFohMjsDH8rhHJsJF7+CpA88B1jwz3 3XhknBK7zyRWi5d0gONu5ka0s1kamhfhkyYg4a7pXaR6aLnIsfWjufKhh+HNRrH2PjmbFo qQXBluPLNwrb9ehLZMJdiPDBZ/olYG0BIZdDkxRc+Ih9tssQ4EpYk5x1tXVJP/1g== Received: by recvd-7cc7f7d978-bkskw with SMTP id recvd-7cc7f7d978-bkskw-1-66FBA0B7-5 2024-10-01 07:11:51.670736431 +0000 UTC m=+1602878.115640737 Received: from herokuapp.com (unknown) by geopod-ismtpd-30 (SG) with ESMTP id o09o5DMWTF-wzB1049Zfow for ; Tue, 01 Oct 2024 07:11:51.545 +0000 (UTC) Date: Tue, 01 Oct 2024 07:11:51 +0000 (UTC) Message-ID: References: Mime-Version: 1.0 X-Redmine-Project: ruby-master X-Redmine-Issue-Tracker: Feature X-Redmine-Issue-Id: 20770 X-Redmine-Issue-Author: AlexandreMagro X-Redmine-Issue-Priority: Normal X-Redmine-Sender: ko1 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-Redmine-MailingListIntegration-Message-Ids: 96009 X-SG-EID: =?us-ascii?Q?u001=2EbATEdfk2zDVGkqEmBpIo5H4n7Ev5v4PGlIEIJ8FEzfCkvwlGMFn=2FTmv+l?= =?us-ascii?Q?pwPr17bEITdo5x64lhfcVhbF8MZb0zbpSMCYl+0?= =?us-ascii?Q?+mWXP7PS68xATg283JDSYVG03iMDJOuSE3w9jKf?= =?us-ascii?Q?Q0LJUhUDVewLRUhEFG5nOT1uu0hk8PvD803It1i?= =?us-ascii?Q?3OXqLVvR5y9gDeXu7HfgprVJcROvGjSs1b0+Jeh?= =?us-ascii?Q?n5=2F0WY52vrAafc+n5HoyGs2onoR5FNGgkTnEKXZ?= =?us-ascii?Q?q678?= To: ruby-core@ml.ruby-lang.org X-Entity-ID: u001.I8uzylDtAfgbeCOeLBYDww== Message-ID-Hash: ALGDUI2JYVU6BOUUSASOMZQZZZOYA767 X-Message-ID-Hash: ALGDUI2JYVU6BOUUSASOMZQZZZOYA767 X-MailFrom: bounces+313651-b711-ruby-core=ml.ruby-lang.org@em5188.ruby-lang.org X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header X-Mailman-Version: 3.3.9 Precedence: list Reply-To: Ruby developers Subject: [ruby-core:119372] [Ruby master Feature#20770] A *new* pipe operator proposal List-Id: Ruby developers Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: From: "ko1 (Koichi Sasada) via ruby-core" Cc: "ko1 (Koichi Sasada)" Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Issue #20770 has been updated by ko1 (Koichi Sasada). FYI: https://github.com/tc39/proposal-pipeline-operator is similar idea. ---------------------------------------- Feature #20770: A *new* pipe operator proposal https://bugs.ruby-lang.org/issues/20770#change-109985 * Author: AlexandreMagro (Alexandre Magro) * Status: Open ---------------------------------------- Hello, This is my first contribution here. I have seen previous discussions around introducing a pipe operator, but it seems the community didn't reach a consensus. I would like to revisit this idea with a simpler approach, more of a syntactic sugar that aligns with how other languages implement the pipe operator, but without making significant changes to Ruby's syntax. Currently, we often write code like this: ```ruby value = half(square(add(value, 3))) ``` We can achieve the same result using the `then` method: ```ruby value = value.then { add(_1, 3) }.then { square(_1) }.then { half(_1) } ``` While `then` helps with readability, we can simplify it further using the proposed pipe operator: ```ruby value = add(value, 3) |> square(_1) |> half(_1) ``` Moreover, with the upcoming `it` feature in Ruby 3.4 (#18980), the code could look even cleaner: ```ruby value = add(value, 3) |> square(it) |> half(it) ``` This proposal uses the anonymous block argument `(_1)`, and with `it`, it simplifies the code without introducing complex syntax changes. It would allow us to achieve the same results as in other languages that support pipe operators, but in a way that feels natural to Ruby, using existing constructs like `then` underneath. I believe this operator would enhance code readability and maintainability, especially in cases where multiple operations are chained together. Thank you for considering this proposal! -- https://bugs.ruby-lang.org/ ______________________________________________ ruby-core mailing list -- ruby-core@ml.ruby-lang.org To unsubscribe send an email to ruby-core-leave@ml.ruby-lang.org ruby-core info -- https://ml.ruby-lang.org/mailman3/lists/ruby-core.ml.ruby-lang.org/