Publish for 2.12/2.13?

[armanbilge]

Thrilled to discover this project yesterday! It scratches a real itch :)

I understand the codec derivation features rely on Scala 3, but I assume it should be straightforward to cross-compile the parser and Node AST for Scala 2.12/2.13? The parser and Node AST is sufficient to enable a circe-yaml frontend for example.

Happy to do the work to split into version-specific sources if 👍

Discussion on the importance of 2.12 (and 2.13) support is in:

• Drop Scala 2.12 circe/circe#1818

I noticed that the advice in #102 (comment) is to use CrossVersion.for2_13Use3 but the consensus seems to be to avoid this technique for libraries. See also:

• https://gist.github.com/djspiewak/b8f2b4547951442102488964bc351cf9#5-dont-rely-on-withdottycompat
• What to do about the Scala 3-specific artifact? scala-js/scala-js-dom#451

Thanks!

[armanbilge]

Yeah, AFAICT for2_13Use3 just doesn't work. Example:

//> using scala "2.13.8"
//> using lib "org.virtuslab:scala-yaml_3:0.0.4"
//> using option "-Ytasty-reader"

object Main {
  val myYaml = """foo: - bar"""
  def main(args: Array[String]): Unit =
    org.virtuslab.yaml.asNode(myYaml)
}

Compiling project (Scala 2.13.8, JVM)
[error] ./bug.scala:8:5: object asNode is not a member of package org.virtuslab.yaml
[error] did you mean Node?
[error]     org.virtuslab.yaml.asNode(myYaml)
[error]     ^^^^^^^^^^^^^^^^^^^^^^^^^
Error compiling project (Scala 2.13.8, JVM)

[kpodsiad]

Hey @armanbilge, feel free to do it. Scala 2 is still the largest piece of cake in ecosystem and enabling to work with YAML in ScalaJS and ScalaNative might be useful for some people. Piggybacking on circe encoders should cover almost all of use cases.

This was more a fun & research project, but I don't see a reason why not shape it into more mature and stable one.

[armanbilge]

@kpodsiad thanks! I opened #162.

This was more a fun & research project, but I don't see a reason why not shape it into more mature and stable one.

It was? 😅 looks fairly serious to me actually, but maybe you folks have a different idea of fun 😛