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[help] Trouble with derivation and generics
1 project | reddit.com/r/scala | 5 Jun 2021
A good starting point is the note in MacroImplicits.scala in upickle sources. "derives Writer" for a specific case class Foo simply adds a given Writer[Foo] to a companion object of the same specific class. However, this cannot be done automatically for a trait defining sum type - in this case trait Thing. The required given must be defined manually, and the ones automatically obtained for case classes can be used in it.
What are some alternatives?
ScalaPB - Protocol buffer compiler for Scala.
Scrooge - A Thrift parser/generator
Chill - Scala extensions for the Kryo serialization library
scodec - Scala combinator library for working with binary data
Avro4s - Avro schema generation and serialization / deserialization for Scala
ScalaBuff - the scala protocol buffers (protobuf) compiler
msgpack - MessagePack serializer implementation for Scala / msgpack.org[Scala]