I'm curious about the transpiling problems from, say, Go to Crystal (not after SSA, but before w/ the high level constructs). I have toyed with Go to Kotlin and even though duck typing is unimplemented in the latter, I can basically get there. I even started a project to dump Go AST and type info[0] but I haven't completed it really. There are just too many amazing Go libs out there to not exercise this option.

Go does have a buildmode for c-archive and c-shared, but it's built around the hobbled Cgo, so you have to explicitly export funcs, and things like structs cannot be exported. Still, a swig-like shim/bridge could be developed, but I am unsure at what cost (I think the go mobile stuff does a form of this).

0 - https://github.com/cretz/go-dump