Backport "Fix #22226: Use classOf[BoxedUnit] for Unit array in ArrayConstructors." to 3.3 LTS
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…structors`. The `ArrayConstructors` phase rewrites array constructors to calls to `scala.runtime.Arrays.newArray`. When it does that, it must pass the run-time `jl.Class` of the element type. Previously, it used `classOf[Unit]` when creating an `Array[Unit]` (or nested). That is not correct, as from the Java perspective, we need to create `Array[BoxedUnit]`. We now identify `elemType <: Unit` and replace it with `BoxedUnit`. --- This highlights a limitation of the Scala.js backend. We should rewrite calls to `newArray` in the backend to use direct array creation instead. [Cherry-picked 442e6a0]
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No regressions detected in the community build up to backport-lts-3.3-22256. |
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Backports scala#22238 to the 3.3.6.
PR submitted by the release tooling.
[skip ci]