Is there a good reason why `prefix-out' does not allow more than one
require-spec? Currently to attach a prefix to multiple identifiers you
must use `combine-out'
(provide (prefix-out foo: (combine-out x y))
Instead of
(provide (prefix-out foo: x y))
The issue was raised on IRC, so its not an i
Thanks so much, that makes perfect sense.
On 03/16/2011 02:16 PM, Carl Eastlund wrote:
David,
I believe you are seeing the difference between modules and the REPL.
At the REPL, each expression is compiled, run, and discarded. This
yields the behavior you expect. But a "#lang" form produces a
David,
I believe you are seeing the difference between modules and the REPL.
At the REPL, each expression is compiled, run, and discarded. This
yields the behavior you expect. But a "#lang" form produces a module,
which is compiled and kept for the rest of the session. Thus, even
after garbage
I'm seeing a difference between when the value in a weak box is
collected. When I run the following interactively, the value is
collected like I expect. But it is not collected when running in a
script, or in DrRacket. This is v5.1 on Ubuntu x64, compiled from source.
Can someone explain th
At Wed, 16 Mar 2011 13:21:28 -0400, Eli Barzilay wrote:
> >Generators include the result of `generator' and input
> >ports. (The `generator?' predicate currently returns false for
> >input ports, but that could change.)
>
> I'd rather see these generators be only thunks (explained belo
+1
2011/3/16 Matthew Flatt :
> Here's a proposal for cleaning up `racket/stream'.
>
> The first part of the proposal is terminology:
>
> * A _sequence_ is any kind of input to `for'. That is, it's a generic
> ordered collection of elements that supports iteration through the
> elements.
>
>
Three hours ago, Matthew Flatt wrote:
> Here's a proposal for cleaning up `racket/stream'.
>
> The first part of the proposal is terminology:
> [...]
That's close to what we talked about, with the addition of generators.
>Generators include the result of `generator' and input
>ports. (T
Looks great to me.
Robby
On Wed, Mar 16, 2011 at 9:04 AM, Matthew Flatt wrote:
> Here's a proposal for cleaning up `racket/stream'.
>
> The first part of the proposal is terminology:
>
> * A _sequence_ is any kind of input to `for'. That is, it's a generic
> ordered collection of elements tha
Here's a proposal for cleaning up `racket/stream'.
The first part of the proposal is terminology:
* A _sequence_ is any kind of input to `for'. That is, it's a generic
ordered collection of elements that supports iteration through the
elements.
Sequences include lists, vectors, and inp
At Tue, 15 Mar 2011 22:06:40 -0600, Jon Rafkind wrote:
> There are also some generator tests in collects/tests/racket/for.rktl.
> Shall I move over to generator.rktl?
Aha! I thought I had seen some `geneator' tests, and "for.rktl" is a
reasonable place for them --- but I got confused by `test-gene
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