Pickler derivation for case object

[johannes karoff]

Using boopickle.Default._, I am not able to automatically generate a Pickler for a case object. It works using boopickle.shapeless.Default._, though.

[Otto Chrons]

Why would you need that? It's a no-op anyway, nothing would get serialized/deserialized.

[johannes karoff]

I have an ADT that I am serializing and some sub classes are objects. Serialization being a no-op in this case is fine. But I do not get an autoderived Pickler.

[Otto Chrons]

The tests should cover case objects as well, for example this works fine:

  case object TestO

      'CaseObject {
        val bb = Pickle.intoBytes(TestO)
        // yea, pickling a case object takes no space at all :)
        assert(bb.limit == 0)
        val u = Unpickle[TestO.type].fromBytes(bb)
        assert(u == TestO)
      }

Is your situation somehow different?

[johannes karoff]

Oh, you are right. I have overlooked that, in general, case objects seem to work. But still my situation is somehow different. The ADTs in question are generated by another macro, but the boopickle macros work for all these types except for objects. I am going to close this one, as this might not be general problem, but will come back with a better description, as soon as I found the cause. Until then, will continue to work with the shapeless derivation.