Exception upon traverse

[jchapuis]

When running the example , prior removal of type information in the val uploads = declaration leads to a runtime exception

class scala.collection.immutable.$colon$colon cannot be cast to class scala.collection.View
[error] 	at scala.collection.BuildFrom$$anon$8.newBuilder(BuildFrom.scala:85)
[error] 	at besom.internal.Output$.sequence$$anonfun$1$$anonfun$1(Output.scala:123)

[pawelprazak]

Thank you for finding this, I was able to reproduce on 0.2.2. As you've said, removing the explicit type from val uploads leads to compiler type inference confusion. Notable factor is the toList method is being called on a Java array.
We need to further investigate the root cause.

[lbialy]

Wow, this is actually a mind blowing issue in the compiler itself. This is, in my humble opinion, an exports-related bug. I have replicated this on this repro repo:
https://github.com/lbialy/besom-issue-430

[lbialy]

Reported to scala/scala3: scala/scala3#20079