From: contact@delonnewman.name
To: ruby-core@ruby-lang.org
Subject: [ruby-core:99281] [Ruby master Feature#17043] Invokable module for custom Proc-like objects
Date: Thu, 23 Jul 2020 00:42:23 +0000 (UTC) [thread overview]
Message-ID: <redmine.issue-17043.20200723004221.41556@ruby-lang.org> (raw)
In-Reply-To: redmine.issue-17043.20200723004221.41556@ruby-lang.org
Issue #17043 has been reported by delonnewman (Delon Newman).
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Feature #17043: Invokable module for custom Proc-like objects
https://bugs.ruby-lang.org/issues/17043
* Author: delonnewman (Delon Newman)
* Status: Open
* Priority: Normal
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Ruby beautifully integrates Functional and Object-Oriented Programming, and there's more moving in the direction of supporting Functional Programming. A generalization of the Proc interface would enable users to integrate a functional approach into their classic OOP design patterns. One of the obvious examples would be "Command" objects.
Also, generic structures which Ruby as great support for. Hash now has `to_proc`. But, it'd be great to be able to treat sets as predicate functions.
I've put together a prototype that I've found useful in my own work here: https://github.com/delonnewman/invokable.
It works like Enumerable, it can be included in any class that implements a `call` method. Then you get `to_proc`, `curry`, `<<` and `>>` for right and left composition, and `memoize`. More could be added. If you include `Invokable::Command` you can treat your "Command" object as an automatically curried function.
--
https://bugs.ruby-lang.org/
next parent reply other threads:[~2020-07-23 0:42 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-23 0:42 contact [this message]
2020-07-23 5:16 ` [ruby-core:99290] [Ruby master Feature#17043] Invokable module for custom Proc-like objects shyouhei
2020-07-23 18:19 ` [ruby-core:99302] " contact
2020-07-23 18:43 ` [ruby-core:99303] " marcandre-ruby-core
2020-07-23 20:57 ` [ruby-core:99306] " contact
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