Of course.
On Jan 19, 2012, at 5:56 PM, Grant Rettke wrote: > In Java for example which doesn't have modules you would create a > class whose sole purpose in life was to hold those constants. Did you > guys make that choice consciously? > > On Thu, Jan 19, 2012 at 3:58 PM, Robby Findler > <ro...@eecs.northwestern.edu> wrote: >> But is this style of OOP thinking because of a weakness in the design >> of the OOP that Racket (as it famously inherits from Scheme (ala >> Clinger's intro to the RnRS reports)) avoids? >> >> Robby >> >> On Thu, Jan 19, 2012 at 1:41 PM, Christian Wagenknecht >> <c.wagenkne...@hs-zigr.de> wrote: >>> I expected to find some special-form, like 'class-variable' or something >>> like that. >>> >>> For pedagogical reasons I'd prefer to implement two syntactically different >>> programs representing the oop thinking style quite obvious: the first one >>> makes absolutely no use of the bindings provided by the 'class' library that >>> comes with Racket whereas the second one is mainly limited to take them. The >>> first one helps the students to understand lots behind the scene of how oop >>> works and why. The second one abstracts of that and really allows for oo >>> programming. >>> >>> What I mean is that the terms describing the basic concepts of object >>> oriented programming should be mapped to related code. Using 'let' to get >>> the right variable scope causes to mix both levels of thinking / >>> abstraction. Thats exactly what I like to avoid. >>> >>> Am 19.01.2012 18:09, schrieb Matthias Felleisen: >>> >>>> >>>> On Jan 19, 2012, at 11:57 AM, Christian Wagenknecht wrote: >>>> >>>>> How class variables/methods (instead of instance variables/methods) can >>>>> be implemented be means of Racket's class definition expressions? An >>>>> unsatisfying way I found is by using a let expression enclosing the whole >>>>> definition of the class. >>>> >>>> >>>> What's unsatisfying about it? >>> >>> ____________________ >>> Racket Users list: >>> http://lists.racket-lang.org/users >> >> ____________________ >> Racket Users list: >> http://lists.racket-lang.org/users > > > > -- > http://www.wisdomandwonder.com/ > ACM, AMA, COG, IEEE ____________________ Racket Users list: http://lists.racket-lang.org/users
