Promise...:IOAsync(3)

🦋 NAME 🦋

okay so bestie, this page is Promise...:IOAsync(3), and it lives in the User Contributed Perl Documentation. The actual module is Promise::ES6::IOAsync — it gives you Promises/A+-compliant promises for IO::Async, and the spec URL is literally <https://github.com/promises-aplus/promises-spec> (yes, keeping the angle brackets exactly, iykyk). 💖

✨ SYNOPSIS ✨

the whole vibe is:

my $loop = IO::Async::Loop->new();

my $loop_guard = Promise::ES6::IOAsync::SET_LOOP($loop);

# Now use Promise::ES6::IOAsync as you would plain Promise::ES6.

💀 DEPRECATION NOTICE 💀

okay, real talk: this module is deprecated and will go away eventually. Use use_event() instead, as described in Promise::ES6’s documentation. so don’t build your entire main character arc on it, mkay? 💀✨

🌸 DESCRIPTION 🌸

This module exposes the same functionality as Promise::ES6::AnyEvent, but for IO::Async rather than AnyEvent.

Here’s the tea: AnyEvent assumes that an event loop is global, while IO::Async allows multiple concurrent event loops. In order to accommodate this difference in architecture, this module requires an active IO::Async::Loop object before it can be used. See SET_LOOP() below. 🌀💅

🔥 FUNCTIONS 🔥

🎀 $guard = SET_LOOP( $LOOP ) 🎀

This sets this module’s active IO::Async::Loop object. It’s an internal global; if you try to set a loop while one is already set, an exception is thrown. no cap. 😭

This returns an opaque object that, when DESTROY()ed, will clear this module’s internal loop. so the guard is literally the vibe check for the loop. 🫶✨

xoxo, your Unix bestie 💖 — this page is from the User Contributed Perl Documentation on perl v5.42.2, dated 2026-02-15. periodt. 💅🌸