Promise...red::AE(3)

💖 Promises::Deferred::AE 💖

okay so bestie, welcome to Promises::Deferred::AE(3) — a User Contributed Perl Documentation page, no cap. this is the AE-flavoured implementation of Promises in Perl. let's get into it ✨

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🌸 NAME 🌸

Promises::Deferred::AE — an implementation of Promises in Perl 🫶

⭐ VERSION ⭐

version 1.05 — yes she's been around a minute and she still slays 💅

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✨ SYNOPSIS ✨

use Promises backend => ['AE'], qw[ deferred collect ];

# ... everything else is the same

like, literally everything else stays the same, that's the whole vibe 🔥

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🦋 DESCRIPTION 🦋

okay so the tea: the Promise/A+ spec is strongly suggesting that the callbacks you hand to then should run asynchronously — meaning in the next turn of the event loop. not right this second, not in the middle of whatever you were doing. next turn. periodt. 💀

this module is the one that makes that happen, and it does it using the AE module. that's the whole job. she's a specialist 👑

and here's the part that's lowkey iconic: module authors should not care which event loop is gonna be used. don't pick favourites, don't hardcode a backend, just use the Promises module directly and let the universe sort it out:

package MyClass;

use Promises qw(deferred collect);

then the end users — the people actually running the app — get to pick which backend they want, at the very start of the application:

use Promises -backend => ['AE'];
use MyClass;

main character energy: the author writes the code, the user chooses the loop. everyone eats. 🍓

ngl this is the good separation-of-concerns behaviour, so like… respect it 💜

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🎀 AUTHOR 🎀

Stevan Little <stevan.little@iinteractive.com> — thank you for your service king 🫡

🌈 COPYRIGHT AND LICENSE 🌈

this software is copyright (c) 2025, 2017, 2014, 2012 by Infinity Interactive, Inc.

this is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself. fr fr, go wild, just keep the terms 🧚

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and that's the whole page bestie 💖 shoutout to perl v5.42.0 and the date stamp 2025-07-25 for making it official — this was Promise...red::AE(3), iykyk ✨🌸💅