In the interactions window, free variables are runtime errors not compile time errors (unlike empty applications). If that had been in a module (or in the definitions window), then you would have gotten that, I believe.
Robby On Sun, Feb 19, 2012 at 8:52 PM, Rodolfo Carvalho <[email protected]> wrote: > Hello, > > I ran "(define my-generator (generator () (yield 1) (yield 2 3 4)))" on > DrRacket's Interactions Window, but forgot to require racket/generator > first. > > The error message was: > #%app: missing procedure expression; probably originally (), which is an > illegal empty application in: (#%app) > > > Which makes sense. > However, wouldn't it be more helpful if it would first complain about > `generator' being undefined? > > > []'s > > Rodolfo Carvalho > > ____________________ > Racket Users list: > http://lists.racket-lang.org/users > ____________________ Racket Users list: http://lists.racket-lang.org/users
