Hey Andy,
> Hope that helps,
It does, thanks! (It took me a while to internalize the practical
implications of struct / vtable equality, although I'd read and
re-read the relevant bits of the manual...)
Find attached a revised version of my original patch, which I hope
reflects what you were g
Hello :)
;; First, get the set of required fields in a vtable. There should be a
;; better way for this, but there isn't.
;;
(define vtable-base-layout
(symbol->string (struct-layout (make-vtable ""
;; Now make the vtable for record-types. It has the base layout, plus
;; one more field to h
Hi Andy,
> Do you still need some help here? I can try to work up some code to make
> an example.
Um, yes? If you've got the time. (Sorry for the way-late reply --
I've been distracted with apartment hunting / moving.)
Thanks,
Julian
On Mon 20 Sep 2010 09:20, Andy Wingo writes:
> Will elaborate later, have to run out the door :)
Do you still need some help here? I can try to work up some code to make
an example.
Andy
--
http://wingolog.org/
On Sun 19 Sep 2010 17:28, Julian Graham writes:
>> Is it possible to keep the current flat record layout, and change this
>> check to be:
>>
>> (define (record-internal? obj)
>> (and (struct? obj)
>> (eq? (struct-vtable (struct-vtable obj))
>> record-type-vtable)))
>>
>>
Hey Andy,
> Is it possible to keep the current flat record layout, and change this
> check to be:
>
> (define (record-internal? obj)
> (and (struct? obj)
> (eq? (struct-vtable (struct-vtable obj))
> record-type-vtable)))
>
> What kind of performance do you get there?
I'm
Hi Julian,
On Sun 19 Sep 2010 02:20, Julian Graham writes:
>(define (record-internal? obj)
> -(and (struct? obj)
> - (let* ((vtable (struct-vtable obj))
> - (layout (symbol->string
> - (struct-ref vtable vtable-index-layout
> -(and (>= (s
Hi Guilers,
I've been a bit quiet recently since, while waiting for 2.0, I've been
rewriting one of my old Guile module projects (SDOM) as an R6RS
library. Among other things, this has gotten me pretty familiar with
the performance profile of Guile's R6RS records code. My initial
implementation
