Dictionaries provide an iteration interface with the primitive operations:
dict-iterate-first: Dict -> (U #f Iterator)
dict-iterate-next: Dict Iterator -> (U #f Iterator)
dict-iterate-key: Dict Iterator -> Key
dict-iterate-value: Dict Iterator -> Value
This interface matches the hash interface an
This seems ok to me. I'm not convinced there are any useful guarantees
when an impersonable property has a guard, but I can see that there
could be a useful sanity check.
As you may already know: The primitive `make-struct-type-property'
procedure can't accept keyword arguments, because there are
Hi all,
I mentioned an issue I had with struct type properties & impersonators
in the promise/c thread, but I figured I should explain this in more
detail.
Currently, `make-struct-type-property` takes an optional argument which
is the "guard" for the property. This guard is a procedure that check
The release process for v5.3 has begun: the `release' branch was
created for any work that is left and is now bumped to v5.2.900.0. You
can go on using the `master' branch as usual, it is now bumped to
v5.3.0.16 (to avoid having two different trees with the same version).
If you have any bug-fix
On 7/17/12 5:33 PM, Matthew Flatt wrote:
I've pushed a correction related to a change today in the module name
resolver (missed a direct call in DrRacket).
Thanks for the quick fix!
I notice a small typo in the docs:
"A module name resolver takes one and four arguments:"
Should be two and
On 07/17/2012 05:32 PM, mfl...@racket-lang.org wrote:
mflatt has updated `master' from 3b5eb1da41 to 6b3e207ecd.
http://git.racket-lang.org/plt/3b5eb1da41..6b3e207ecd
=[ 2 Commits ]==
Directory summary:
5.7% collects/drracket/private
I've pushed a correction related to a change today in the module name
resolver (missed a direct call in DrRacket).
At Tue, 17 Jul 2012 17:27:19 -0400, Sam Tobin-Hochstadt wrote:
> On Tue, Jul 17, 2012 at 5:14 PM, David Van Horn wrote:
> >
> > I'm getting an arity mismatch error whenever I run a s
On Tue, Jul 17, 2012 at 5:14 PM, David Van Horn wrote:
>
> I'm getting an arity mismatch error whenever I run a saved file in DrRacket.
I get this identical error in DrRacket with the latest git HEAD.
--
sam th
sa...@ccs.neu.edu
_
Racket Developers list:
http://lists.
Hi,
I'm getting an arity mismatch error whenever I run a saved file in DrRacket.
Welcome to DrRacket, version 5.3.0.15--2012-07-17(3b5eb1da/d) [3m].
Language: racket [custom]; memory limit: 1024 MB.
. . ../../racket/collects/drracket/private/module-language.rkt:373:8:
standard-module-name-resol
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