Derivation for class with collection field

[kubinio123]

Trying to derive Show instance from test sources for a case class with List field ends up in compilation error.

In tests.scala

case class Attributes(a: String)
case class Entry(attributes: Attributes)
case class Response(entries: List[Entry])

test("construct a Show product instance") {
  val res = Show.derived[Response]
}

outputs:

[error] java.lang.AssertionError: assertion failed: <notype> class dotty.tools.dotc.ast.Trees$TypeTree -1

[joroKr21]

Oh no - that sounds like lampepfl/dotty#13406 - unfortunately I don't think anyone is working on it.

[adamw]

@joroKr21 Thanks for linking the issues - I've voted on it, if it makes any difference :)