http://docs.racket-lang.org/data/Orders_and_Ordered_Dictionaries.html
Towards the bottom of this page there is the following error:
(datum-order (make-fish 'alewife) (make-fish 'sockeye))
make-fish: undefined;
cannot reference undefined identifier
Is this intentional?
Thanks,
Dave
Interesting problem. I almost gave up, but I think I've sorted it out
--- repair pushed.
At Thu, 29 Nov 2012 18:20:18 -0500 (EST), J. Ian Johnson wrote:
Simpler example:
(require racket/splicing racket/stxparam)
(define-syntax-parameter f #f)
(define x 0)
;; 0
(syntax-parameterize ([f
On Fri, Nov 30, 2012 at 7:09 PM, Matthew Flatt mfl...@cs.utah.edu wrote:
Version-specific installation
-
Not to speak too much on Jay's behalf, but I think he isn't convinced
that the new default is right. If `--shared' is the default, then a
`raco pkg update'
On 12/01/2012 04:23 AM, David Vanderson wrote:
http://docs.racket-lang.org/data/Orders_and_Ordered_Dictionaries.html
Towards the bottom of this page there is the following error:
(datum-order (make-fish 'alewife) (make-fish 'sockeye))
make-fish: undefined;
cannot reference undefined
I'm getting ready to push a change to math/array that fixes a memory
leak. I've devised a test that I think will determine whether an array's
procedure gets collected after the array is made strict, but I don't
know whether it works only by accident. Here it is:
(define: collected? : (Boxof
How about using a weak box instead?
Robby
On Sat, Dec 1, 2012 at 11:45 AM, Neil Toronto neil.toro...@gmail.com wrote:
I'm getting ready to push a change to math/array that fixes a memory leak.
I've devised a test that I think will determine whether an array's procedure
gets collected after
Yesterday, Matthew Flatt wrote:
I've been working with Jay on a few more changes:
Specifying metadata
---
METADATA.rktd is being replaced with info.rkt, which is written in
the `setup/infotab' language as usual.
Define `deps' for dependencies, like this:
#lang
Yes, what you describe is what we imagine migrate will do.
Jay
On Sat, Dec 1, 2012 at 4:10 PM, Eli Barzilay e...@barzilay.org wrote:
Yesterday, Matthew Flatt wrote:
I've been working with Jay on a few more changes:
Specifying metadata
---
METADATA.rktd is being replaced
Honestly, because I was too rushed to try them before I had to leave
this morning. :D However, now that I have the chance, I've found that
Typed Racket doesn't support them. I can't add support using
`required/typed', because `Weak-Box' would have to be a polymorphic type.
Also, they don't
This prints #f for me.
#lang racket
(define (make-box-thing v)
(make-weak-box (λ (_) v)))
(define bx (make-box-thing 4))
(collect-garbage)
(weak-box-value bx)
And I guess that non-closure procedures are held onto by the modules
they are inside. This program prints #f for me, and it seems to
Ah. It prints #f for me when I have debugging info turned on in
DrRacket; otherwise I get #procedure. Must be inlining keeping it
around or something.
The problem with either finalizers or weak boxes is that neither
provides enough guarantees. Finalizers are never guaranteed to be run. A
On 12/01/2012 07:05 PM, Neil Toronto wrote:
Ah. It prints #f for me when I have debugging info turned on in
DrRacket; otherwise I get #procedure. Must be inlining keeping it
around or something.
The problem with either finalizers or weak boxes is that neither
provides enough guarantees.
I think the high-level answer is that you have to understand something
about details that aren't currently specified but nevertheless are how
things currently work and then make a test that will work when you
make those additional assumptions (and then keep it running in drdr so
you can tell when
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