[plt-dev] abstract methods

I was imagining that one would want abstract and non-abstract methods
in a single class (forcing subclasses to override the abstract ones
only). Does class/abstract support that?

On Fri, Apr 23, 2010 at 7:42 AM, Matthias Felleisen
<matthias at ccs.neu.edu> wrote:
>
> Actually I don't think so. For that, you'd need to add
>
>  class/abstract
>
> -- Matthias
>
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> On Apr 23, 2010, at 8:40 AM, Robby Findler wrote:
>
>> Except it should be an error when instantiating the class, not when
>> calling the method, right?
>>
>> Robby
>>
>> On Fri, Apr 23, 2010 at 7:34 AM, Matthias Felleisen
>> <matthias at ccs.neu.edu> wrote:
>>>
>>> Everyone adds this syntax rule to OO Racket programs:
>>>
>>>> (define-syntax-rule
>>>>  (define/abstract (x y ...))
>>>>  (define/public (x y ...) (error 'x "abstract method needs to be
>>>> instantiated")))
>>>
>>> Could some kind current maintainer of class.ss add this rule and add the
>>> proper syntax magic?
>>>
>>> Thanks -- Matthias
>>>
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>