[plt-scheme] Bug in interaction between shared and class system?

Thanks. I should have read more carefully. I was just assuming it was
magic... :-)

On Tue, Dec 29, 2009 at 9:15 AM, Robby Findler
<robby at eecs.northwestern.edu> wrote:
> No, that doesn't work. The docs for scheme/shared give a precise spec
> of what will work.
>
> Robby
>
> On Tue, Dec 29, 2009 at 7:47 AM, Todd O'Bryan <toddobryan at gmail.com> wrote:
>> #lang scheme
>>
>> (define Node%
>>  (class object%
>>    (init-field value
>>                next)
>>
>>    (super-new)))
>>
>> (define cycle
>>  (shared ([the-node (new Node% [value "abc"] [next the-node])])
>>    the-node))
>> ------------------------
>> If I'm using shared correctly, that should create a Node% that refers
>> back to itself.
>>
>> cycle really is a Node%:
>>
>>> cycle
>> #(struct:object:Node% ...)
>>
>> but its next didn't get set correctly.
>>
>>> (get-field next cycle)
>> #<undefined>
>>
>> Is this a bug, or am I not allowed to do this?
>> Todd
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>