I'm pretty sure this is what Steve Yegge was talking about on the most recent StackOverflow podcast he was in. If that is accurate, it's a JavaScript compiler

I'm pretty sure this is what Steve Yegge was talking about on the most recent StackOverflow podcast he was in. If that is accurate, it's a JavaScript compiler that supports a way of partially compiling to allow very tight integration with an IDE (or editor). Yegge's point was that an IDE or editor should not have to re-invent the wheel and a compiler should be able to provide sophisticated feedback about syntax, objects, variables, scope, etc. Cool to see it out in the wild.