Arrow 2.0 release notes #312
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nomisRev
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May 30, 2024
content/blog/2024-07-01-arrow-2-0.md
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| The new `awaitAll` scope tries to improve the situation by tweaking the | ||
| usual `async` mechanism, ensuring that all `Deferred` values are `await`ed | ||
| once the first one is requested. That means that the previous code behaves | ||
| identically to the following. |
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I added new documentation in a DRAFT PR that explains the actual issue. This is an example:
coroutineScope {
val x = async { awaitCancellation() }
val y = async { throw CancellationException("Boom!") }
...
}This hangs forever, which means this also hangs forever:
either {
coroutineScope {
val x = async { awaitCancellation() }
val y = async { raise("Boom!") }
...
}
}And awaitAll solves that issue by actually awaiting all parallel jobs in parallel. More elaborate here, https://github.com/arrow-kt/arrow/pull/3443/files#diff-eba615458a6921b379f1477f70993424b278b3de927ece7e998c5bf7dba6f7f0R38
nomisRev
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May 30, 2024
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| ```kotlin | ||
| Schedule.recurs<Throwable>(2) | ||
| .retry<IllegalArgumentException, _> { ... } | ||
| ``` |
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See other comment, I think it is important we can call doWhile on IllegalArgumentException here as well.
Open
|
Closed as part of #333 |
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It's never too early to start with this.