Does anyone know where I can see the source for the primitive types such as

Int

? I’m interested in seeing how mapping to

int

, and boxing to

java.lang.Integer

is implemented. So far I found a Generator class: https://github.com/JetBrains/kotlin/blob/master/generators/builtins/primitives.kt And this native generated file, but I can’t see an equivalent for JVM or where the conversion is handled.

You want to know where this is implemented in the compiler?

Best place to ask is #compiler

Yes, thanks will ask there!