moonbitlang / async / 857

77%

Build Type

push

github

Committed by Guest0x0

Commit Message

fix(js): keep scheduling rounds after Promise::from_async

Promise::from_async drove the spawned coroutine with
@coroutine.reschedule(), which runs a single round of ready coroutines
and never schedules a follow-up. When from_async is the only thing
driving the event loop (e.g. MoonBit code exported to a JavaScript
host such as Cloudflare Workers), any coroutine that becomes ready
during that round is left sitting in the run queue and the returned
promise never settles.

Call @event_loop.reschedule() instead, which chains a setTimeout(0)
round while immediately-ready tasks remain, matching how every other
JS entry point (promise resolution callbacks, timers) re-enters the
scheduler.

Coverage Stats

1 of 1 new or added line in 1 file covered. (100.0%)

2 existing lines in 1 file now uncovered.

3719 of 4827 relevant lines covered (77.05%)

11578.64 hits per line