On 2014-04-15 18:13:31 -0400, claire alvis wrote: > The push below includes changes to letrec expressions, internal > definitions, units, classes, and certain ill-formed shared expressions so > that they no longer leak the `undefined' value.
This is great! (especially happy that TR, even with classes, doesn't have to worry about #<undefined> anymore) BTW, I found this weird behavior: Welcome to Racket v6.0.1.3. -> (require racket/unsafe/ops) -> (let () (+ x 3) (define x 3) 5) ; x: variable used before its definition [,bt for context] -> (let () (unsafe-fx+ x 3) (define x 3) 5) 5 Cheers, Asumu _________________________ Racket Developers list: http://lists.racket-lang.org/dev