I don't know anything about signatures, since they're not documented or advertised.
I don't know why it isn't included... I thought the patch was cherry picked. I didn't test it in the release because I added the tests for the feature to tests/racket/advanced.rktl Jay On Mon, Aug 2, 2010 at 1:49 AM, Michael Sperber <sper...@deinprogramm.de> wrote: > > Eli Barzilay <e...@barzilay.org> writes: > >> I don't know of any plan for signatures, but if it would be bad to >> advertise it if it's not included... Jay/Ryan--?? > > Signatures are already in there (look in the log in collects/lang) - > they're just not documented yet. They already give you this, for > example: > > (define-struct foo (a b)) > (define-struct bar (c d)) > (define foo-or-bar > (signature (mixed foo bar))) > > At the very least, `define-datatype' should also define a signature. > > -- > Cheers =8-} Mike > Friede, Völkerverständigung und überhaupt blabla > -- Jay McCarthy <j...@cs.byu.edu> Assistant Professor / Brigham Young University http://teammccarthy.org/jay "The glory of God is Intelligence" - D&C 93 _________________________________________________ For list-related administrative tasks: http://lists.racket-lang.org/listinfo/dev