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.<p>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?