[racket-dev] Release Announcement for v5.3, second draft

On Wed, Aug 1, 2012 at 10:52 AM, Robby Findler
<robby at eecs.northwestern.edu> wrote:
> On Wed, Aug 1, 2012 at 9:47 AM, Sam Tobin-Hochstadt <samth at ccs.neu.edu> wrote:
>> On Wednesday, August 1, 2012, Robby Findler wrote:
>>>
>>> On Wed, Aug 1, 2012 at 8:44 AM, Sam Tobin-Hochstadt <samth at ccs.neu.edu>
>>> wrote:
>>> >> The following have been deprecated and will be removed in the
>>> >> August 2013 release:
>>> >>
>>> >>   - the `define-contract-struct' form. Use `struct' with `struct/dc'
>>> >>     contracts instead.
>>> >
>>> > This entry surprises me.  Has it been discussed on the list?
>>> > `define-contract-struct` has rather different semantics, right?
>>>
>>> What difference are you thinking of?
>>
>>
>> `struct/dc` uses impersonators/chaperones to place contracts on the actual
>> structure instances, whereas `define-contract-struct` wraps the
>> accessor/constructor procedures, right?
>
> No, that's wrong. struct/dc is like define-contract-struct. Check out
> the docs or the IFL 2007 paper on my pubs web page.

Ah, I see.  Sorry about that.

-- 
sam th
samth at ccs.neu.edu