Hi dev, I would like to provide (for-syntax) the "expand-clause" function in racket/private/for.rkt. Would this cause any problems? Would anyone object to this?
I have an implementation of for/X in my generic-bind library that uses expand-clause and with it, the generic-bind ~for forms are as fast, sometimes a little faster, than racket's for/X in some preliminary testing. (Without access to expand-clause, sequence traversal is slow --- the current planet-available version of my library uses sequence-generate and is twice as slow.) The "sometimes a little faster" is likely in part due to less error-checking, but my implementation passes all the for/X unit tests and so as is, it can reasonably be used in place of for/X. _________________________ Racket Developers list: http://lists.racket-lang.org/dev