[plt-dev] some Racket proposals & implementation

From: Jay McCarthy (jay.mccarthy at gmail.com)
Date: Sat Apr 3 22:15:09 EDT 2010

I'm a complete idealist so I'm willing to change anything if we think
it is better. You'll have to restrain me to be practical and
compatible. =)


On Sat, Apr 3, 2010 at 6:19 PM, Matthew Flatt <mflatt at cs.utah.edu> wrote:
> At Sat, 3 Apr 2010 18:16:47 -0400, Matthias Felleisen wrote:
>> Guys, when Matthew was here we discussed the balance of changes and name
>> changes, and I think all of us agreed that some change is good but easy
>> migration must be the overriding goal. Keep this in mind please
> Yes.
> I like
>  (define-struct (a x y) #:super b)
> much better than the current
>  (define-struct (a b) (x y))
> but I'm not sure that it's worth changing.
> Dropping `make-' from the constructor's name probably creates a bigger
> migration problem. Furthermore, that problem may subsume the problems
> created by this additional change (i.e., the simple fix of importing
> the old `define-struct' solves both sets of problems). So, if the
> revised syntax seems significantly better to everyone, then maybe it
> would be ok.
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Jay McCarthy <jay at cs.byu.edu>
Assistant Professor / Brigham Young University

"The glory of God is Intelligence" - D&C 93

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