feature: scala3 support

[borissmidt]

Dear,

I'm a scala developer and i was wondering if there are any plans on upgrading the scala version and go to scala-3.

I dont really do hardware development but it seems like a very cool project.

[mwachs5]

Hi @borissmidt , it's certainly on our radar as something to explore. We haven't yet investigated what it would take.

[sequencer]

The tricky things are macro and compiler plugin, both of which are tightly integrated to Chisel. I'm also experimentally splitting a Scala3 & Scala213 code bases in #2285, but not confident in getting this into Chisel. I'm trying to firstly split all macro out of chisel code base, and moving them into a Scala2 src folder, then implementing a Scala3 version of them to minimize the Scala2 and Scala3 gap.

rg "= macro"|wc -l
212

That's a huge job... Compiler seems easier than macro(only need to rewrite them in Scala).

[ghost]

+1 scala3, scala3 provided better API , library and optimze much more than scala 2.x

[jnbrq]

I think Scala3 support would elevate Chisel's reach and ease of usability.

[ledyba]

Any updates?