As far as I understand it currently uses JS as a target, but might switch to WASM soon.
But don't worry about the abstraction layers, we might even have some more :-) E.g. some kind of intermediate language between WASM and CPU assembly (like LLVM IR). Or the CPU µops which are even below the real assembly. Or Java maven plugins like annotation processors, which transform some Java code into others. Or even on top of that some interface definition languages, which are transformed into Java through code generators.
As far as I understand it currently uses JS as a target, but might switch to WASM soon.
But don't worry about the abstraction layers, we might even have some more :-) E.g. some kind of intermediate language between WASM and CPU assembly (like LLVM IR). Or the CPU µops which are even below the real assembly. Or Java maven plugins like annotation processors, which transform some Java code into others. Or even on top of that some interface definition languages, which are transformed into Java through code generators.