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Mon, 30 Sep 2024 23:58:25 +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=GbHSZ+rBpqwzvBco4r/BTEuCjzZi9R512D0xj/7sNJg=; b=oQjrAA8lTcAKxS9/mzSgLstd3t+WIAzISiNt9MIEOtfnor4spFVMGrgJPpHQwwKHychR 7E8LIaLtwKKDbVKTNRC4tXMMNTNaQH6zp5IPCNx0IDwTSEq0szMTh5GCUDODPBAAuXy9Lr 7Jeb93X44OhwvikxbBRSrPJp9lJAra9ErORQbHiEQ5YtUYC6W3QdE9M2s/DkvOfgB0rnif dDnjIh7u7kOwjhcTCuNSmfWaQivAXRY+TJp5uZDy8KbhEFeh7zpjq+VECLUTSxuuV+rKgD 8ZXvUfZw2N88R50lqWE1VclNlHv6AlhURP77fai+M0Sij4rdHrUoOgzDX31p5qXA== Received: by recvd-5577bcb48c-mrbqk with SMTP id recvd-5577bcb48c-mrbqk-1-66FB3B20-18 2024-09-30 23:58:24.815490077 +0000 UTC m=+1576918.514853874 Received: from herokuapp.com (unknown) by geopod-ismtpd-13 (SG) with ESMTP id WpFLq1d8SpKCM-PasPX_eQ for ; Mon, 30 Sep 2024 23:58:24.782 +0000 (UTC) Date: Mon, 30 Sep 2024 23:58:24 +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: AlexandreMagro 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: 96007 X-SG-EID: =?us-ascii?Q?u001=2EpIF=2F17X3TAYiUJ7JM=2FkjfL3UcUjMXtwdvMQvfIr+dBsdQCbu7=2FyC8JO0y?= =?us-ascii?Q?XpK4kBnHSJ2ak3grQiHABQKRXGn67QaGY5Gvlwz?= =?us-ascii?Q?E1IK+8efZyyY9EsLpiJWiKmwZ5LMhMye50FaAXA?= =?us-ascii?Q?KWUYI93YogI7l+uASW7m17WskADMft5nLShtGom?= =?us-ascii?Q?LqtmWvNd8X+P8LsunfTHLN31S1soZVu=2FkCfZppI?= =?us-ascii?Q?wTewVVbtvzKTmAqotag=2FChrUkOnSGPWoYqKD43a?= =?us-ascii?Q?3yBnEH6OgnQgaRQTUTK=2FRz2HJg=3D=3D?= To: ruby-core@ml.ruby-lang.org X-Entity-ID: u001.I8uzylDtAfgbeCOeLBYDww== Message-ID-Hash: WMFHSORIOHNEJKLFNBSCPVMIOMLGEAR7 X-Message-ID-Hash: WMFHSORIOHNEJKLFNBSCPVMIOMLGEAR7 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:119370] [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: "AlexandreMagro (Alexandre Magro) via ruby-core" Cc: "AlexandreMagro (Alexandre Magro)" Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Issue #20770 has been updated by AlexandreMagro (Alexandre Magro). jeremyevans0 (Jeremy Evans) wrote in #note-10: > We could expand the syntax to treat `.{}` as `.then{}`, similar to how `.()` is `.call()`. With that, you could do: > > ```ruby > client_api_url > .{ URI.parse(it) } > .{ Net::HTTP.get(it) } > .{ JSON.parse(it).fetch(important_key) } > ``` > > Which is almost as low of a syntatic overhead as you would want. > > Note that we are still in a syntax moratorium, so it's probably better to wait until after that is over and we have crowned the one true parser before seriously considering new syntax. The idea of using `.{}` is really creative, but it feels somewhat unintuitive. On the other hand, the pipe operator is a well-established concept, which would ease adoption. ---------------------------------------- Feature #20770: A *new* pipe operator proposal https://bugs.ruby-lang.org/issues/20770#change-109983 * 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/