On Aug 29, 2010, at 7:11 PM, Justin Zamora wrote: > I put the following in my definitions window (Beginning Student Language). > > (define (f x) > (+ x 1)) > > (+ (f 3) 1) > > When I open the Stepper, (f 3) is highlighted in green, as expected. > If I click "Step >", the expression changes to (+ (+ 3 1) 1), as > expected (it stepped into the function). However, if I instead click > on "Application >", I get "All of the definitions have been > successfully evaluated." I expected to get (+ 4 1). I thought the > stepper would replace (f 3) with the result of the application. Why > didn't I see what I expected?
The "Application >" button jumps to the next step that reduces a function to its body. That is, one whose "green" expression is a call to a non-primitive. Frankly, it looks to me like the "Application >" button could be demoted to a menu entry in the "jump to..." choice box. John Clements
smime.p7s
Description: S/MIME cryptographic signature
_________________________________________________ For list-related administrative tasks: http://lists.racket-lang.org/listinfo/users
