> On Feb 25, 2019, at 2:05 PM, Sam Tobin-Hochstadt <sa...@cs.indiana.edu> wrote: > > Version 6.0 was released 5 years ago, so while I don't recall exactly when > the prefix -> syntax was introduced, it was most likely since then.
The -> prefix syntax was introduced in version 6.0.1. If you really need to use 6.0, you can use (String -> Symbol) instead. However if you can upgrade, you probably should. A lot of things have improved in Typed Racket between 6.0 and now. Alex Knauth > Sam > > On Mon, Feb 25, 2019, 1:46 PM Brian Craft <craft.br...@gmail.com > <mailto:craft.br...@gmail.com>> wrote: > yeah, maybe version. Has this changed since 6.0? > > On Monday, February 25, 2019 at 10:39:23 AM UTC-8, johnbclements wrote: > When I paste that code into a file called `foo`, it runs fine. Transcript: > > hardy:/tmp clements> cat foo > #lang typed/racket > (require typed/racket/base) > > (: fn (-> String Symbol)) > (define (fn str) 'foo) > hardy:/tmp clements> racket foo > hardy:/tmp clements> > > I can’t honestly guess what the problem is. Wrong version of racket? > > John > > > > On Feb 25, 2019, at 10:11 AM, Brian Craft <craft...@gmail.com <>> wrote: > > > > Doing a cut & paste from the typed racket docs, I'm getting a compile > > error. Input file: > > > > #lang typed/racket > > (require typed/racket/base) > > > > (: fn (-> String Symbol)) > > (define (fn str) 'foo) > > > > > > 'fn' taken from this page: > > > > https://docs.racket-lang.org/ts-guide/more.html#%28part._when-annotations~3f%29 > > > > <https://docs.racket-lang.org/ts-guide/more.html#%28part._when-annotations~3f%29> > > > > > > > > Running with 'racket foo', gives me > > Type Checker: ->: bad syntax > > in: (-> String Symbol) > > > > > > What am I doing wrong? > > > > > > -- > > You received this message because you are subscribed to the Google Groups > > "Racket Users" group. > > To unsubscribe from this group and stop receiving emails from it, send an > > email to racket-users...@googlegroups.com <>. > > For more options, visit https://groups.google.com/d/optout > > <https://groups.google.com/d/optout>. > > > > > -- > You received this message because you are subscribed to the Google Groups > "Racket Users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to racket-users+unsubscr...@googlegroups.com > <mailto:racket-users+unsubscr...@googlegroups.com>. > For more options, visit https://groups.google.com/d/optout > <https://groups.google.com/d/optout>. > > -- > You received this message because you are subscribed to the Google Groups > "Racket Users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to racket-users+unsubscr...@googlegroups.com > <mailto:racket-users+unsubscr...@googlegroups.com>. > For more options, visit https://groups.google.com/d/optout > <https://groups.google.com/d/optout>. -- You received this message because you are subscribed to the Google Groups "Racket Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to racket-users+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
