Re: [Chicken-hackers] functors

[Felix]

> One question: right now it is necessary to define an intermediary module
> and then another one to actually instantiate the functor like. in this
> example from the documentation:
> 
>   (module nums (multiply)
>     (import scheme)
>     (define (multiply x y) (* x y)))
> 
>   (module number-squarer = (squaring-functor nums))
> 
> 
> Maybe I didn't understand it all correctly but is there syntax for
> folding that into one definition? E.g. something like this:
> 
> (module number-squarer ((instantiates: squaring-functor))
>   (import scheme)
>   (define (multiply x y) (* x y)))
> 

"squaring-functor" takes any number of arguments, so your example
would probably an abbreviation for the common case of instantiating
a functor with a single argument module and providing the body of
that argument at the same step. Interesting! I'll ponder this.


cheers,
felix