Hi! I needed some place to post some code with my comments. Here it is.
A walking tour of context parameters, KProperty0, definitely-non-null types, contracts, sealed scopes, explicit backing fields, fun interface, inline+reified and KSP — by building a multiplatform…
How to debug Scala 3 macros: profiling the compiler, print-debug helpers for types and ASTs, and attaching a JVM debugger to the compiler from Mill, sbt, scala-cli, VS Code or IntelliJ.
How to prove at compile time that a Scala 3 tuple contains only elements of a single type, using match types, opaque types, and clause interleaving.