GeneratedEnum

Base trait of every generated proto enum.

Generated as a Scala 3 enum whose cases carry their proto number, plus an Unrecognized case:

enum Color(val value: Int) extends GeneratedEnum derives CanEqual:
 case COLOR_UNKNOWN extends Color(0)
 case COLOR_RED     extends Color(1)
 case Unrecognized(unrecognizedValue: Int) extends Color(unrecognizedValue)

Unrecognized is present even on a closed enum, so the API does not change shape with the enum's openness. Parsing a closed enum never produces it - an out-of-range value there belongs in the unknown fields, which is what editions mandates - so it can only come from an explicit GeneratedEnumCompanion.fromValue call.