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rename async option to cancellable for waitable-set.poll #562

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Sep 10, 2025
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rename async option to cancellable for waitable-set.poll #562

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4 changes: 2 additions & 2 deletions design/mvp/CanonicalABI.md
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Expand Up @@ -3760,11 +3760,11 @@ delivered at a later `cancellable` call.

For a canonical definition:
```wat
(canon waitable-set.poll $async? (memory $mem) (core func $f))
(canon waitable-set.poll $cancellable? (memory $mem) (core func $f))
```
validation specifies:
* `$f` is given type `(func (param $si i32) (param $ptr i32) (result i32))`
* 🚟 - `async` is allowed (otherwise it must be `false`)
* 🚟 - `cancellable` is allowed (otherwise it must be absent)

Calling `$f` invokes the following function, which returns `NONE` (`0`) instead
of blocking if there is no event available, and otherwise returns the event the
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