I've just started learning protocols, deftype, etc. The first thing I
did was try to extend a Clojure type (maps) to operate as a
specialized Java Swing interface (AttributeSet), forgetting that
interfaces are not protocols; i.e.
(extend-type clojure.lang.PersistentArrayMap
And have you profiled the objects making it to the old generation
(requiring/causing the full GC)? Are persistent collection nodes a
significant part of those?
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On Thu, Feb 9, 2012 at 8:20 PM, Phil Hagelberg p...@hagelb.org wrote:
Sean Neilan s...@seanneilan.com writes:
It's on the github page at the top.
Forgive me if I'm slow, but I can't find it. Can you be more specific?
The canonical page for swank-clojure is
Nope, can't be done. Java interfaces can't do this.
Java 8 may have Interface Injection which will make this possible.
-S
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I have some set of algorithms that needs such-and-such operations to
be as fast as possible. Can I create a VM that is tailored for that?
Yes, this is basically what PyPy does for Regexes, they have a custom
regex engine that has can_enter_jit in it. So basically what you get
is a jitted regex
Not sure if I understand your concern since I wonder how's that
different from, say, some ephemeral Java collection that happens to be
around after a given generational threshold and then becomes
unreachable.
On Feb 10, 4:01 am, pron ron.press...@gmail.com wrote:
And have you profiled the
Nope, can't be done. Java interfaces can't do this.
I'm glad I asked the question. Given that it can't be done, any
suggestions for the best way of handling this interop scenario?
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On Fri, Feb 10, 2012 at 3:13 AM, drewn naylor...@gmail.com wrote:
I've just started learning protocols, deftype, etc. The first thing I
did was try to extend a Clojure type (maps) to operate as a
specialized Java Swing interface (AttributeSet), forgetting that
interfaces are not protocols;
Hi Tassilo,
i tried your macro and its work perfectly, thank you.
On 9 Feb, 01:57, Tassilo Horn tass...@member.fsf.org wrote:
Cedric Greevey cgree...@gmail.com writes:
Hi Cedric,
Just in case the java lib in fact uses System.out/err directly, one
can redirect standard out and error to
On Fri, Feb 10, 2012 at 1:07 PM, Aaron Cohen aa...@assonance.org wrote:
On Fri, Feb 10, 2012 at 3:13 AM, drewn naylor...@gmail.com wrote:
I've just started learning protocols, deftype, etc. The first thing I
did was try to extend a Clojure type (maps) to operate as a
specialized Java Swing
Hi Tassilo,
i tried your macro and its work perfectly, thank you.
On 9 Feb, 01:57, Tassilo Horn tass...@member.fsf.org wrote:
Cedric Greevey cgree...@gmail.com writes:
Hi Cedric,
Just in case the java lib in fact uses System.out/err directly, one
can redirect standard out and error to
Hello all,
I'm very new to clojure, so to familiarize myself I decided to try to
implement the quicksort. My code looks like this:
(defn qsort
([] nil)
([list]
(let[piv(peek list)
f-half (filter (fn [n] (= n piv))
Couple of things to watch out for, Clojure doesn't pattern match on the
args in the way you seem to be expecting, so this will blow the stack (i.e.
calling qsort with the empty list won't call the 0-argument method you have
there.)
The error you're running into is that pop/peek isn't defined
Obviously the example of doall not being up to the task should read:
scratch (type (doall (lazy-seq [1 2 3])))
clojure.lang.LazySeq
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On 02/09/2012 11:40 PM, Steve Miner wrote:
filter is lazy so it won't actually do the work unless the values are needed.
To get a reasonable time, you need to use the result for some computation. Try
something like this:
(defn sum-all [m] (reduce + (apply map + (vals m
(time (sum-all
There's also defrecord
I considered using that, but I need to do something more with the
constructor (e.g. convert the map into a Java array for internal
use). Also, defrecords only takes positional arguments, which will be
hard to use with tens of arguments. (An alternative is just to pass
in
Hi Ron,
I've profiled a 20k line Clojure application and have never seen anything like
what you seem to be suggesting. It seems (though you've not been very clear)
that you suspect that persistent collections may be holding references to nodes
longer than necessary. That is, longer than a
You can always check out clojuredocs.org:
http://clojuredocs.org/clojure_core/clojure.core/-
http://clojuredocs.org/clojure_core/clojure.core/-
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I don't understand (def someVar (newInstantiatedGoogFxObject...)).
Why does (def someVar (new-goog-fx-object ...)) fail whereas (let
[somevar (new-goog-fx-object ...) ] works?
I'm trying to define a variable using def and instantiate a new
goog.fx.DragDrop, but this clojurescript:
(def
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