Speedy Web Compiler – A Rust port of Babel and Closure Compiler
Seems like transcompilation is an area where you really DON'T want be overfocusing on performance.  Correctness is king here.  I mean, compiler bugs are hard.  Really hard.  Deep voodoo hard.  No one who's ever dealt with a significant code generation bug on a large project ever wants to repeat that experience.That's not to say that babel isn't too slow or that this project isn't correct, just that it would scare me to try to work with it.  Does babel have a regression suite?  Does this pass it?