"Emscripten compiles C and C++ to WebAssembly using LLVM and Binaryen" - can emscripten support more languages?

[rubyFeedback]

Right now emscripten can do this:

"Emscripten compiles C and C++ to WebAssembly using LLVM and Binaryen."

GraalVM kind of converts, say, python and ruby code, it can mix it with java and create an .exe, on windows systems - at the least in theory. But it does kind of work actually, to some extent.

Could emscripten also do this? E. g. not just C and C++ but Java, Go and many more languages?

I believe the net-benefit would be great. People could just default to use Emscripten rather than some special library for their own language here. Anyway just an idea.

[sbc100]

If you look at the README in https://github.com/emscripten-core/emscripten it does also say:

While Emscripten mostly focuses on compiling C and C++ using Clang, it can be integrated with other LLVM-using compilers (for example, Rust has Emscripten integration, with the wasm32-unknown-emscripten target).

So, at least for llvm-based languages I think we a quite close.

As for other languages that is much harder since for non-LLVM languages its not clear how we would link the different parts of the program together (emscripten uses wasm-ld for linking, but that only understands LLVM-compatible object files).