Hi Korny,
That is a very interesting question to me, specifically this part:
how do I stop parallel
changes to two unrelated structures in the world from causing transaction
retries?
Actually I don't think you can ever rule out retries if you are using
a ref (or atom) and more than one
On 31.03.2009, at 21:48, Konrad Hinsen wrote:
On 31.03.2009, at 18:50, Mark Engelberg wrote:
On Tue, Mar 31, 2009 at 9:45 AM, Konrad Hinsen
konrad.hin...@laposte.net wrote:
I think this should be sufficient to cover all cases you mentioned,
but of course it needs to be tried in practice.
Hello Korny,
I share your questioning.
On 1 avr, 06:57, Korny Sietsma ko...@sietsma.com wrote:
(A) one ref for the whole world - in which case how do I stop parallel
changes to two unrelated structures in the world from causing transaction
retries?
In this case, I wonder whether to extend
Just last week I finally got my Advanced Practical Recursion in Lisp
1.0 kit from Y-Combinator Technologies, Inc. (not Paul Graham's
company). They have this amazing product that I think we can use in
Clojure. I'm not supposed to share the source code, but I can trust
you folks right?
Just a quick note to say that I've added notes about the TextMate
Clojure bundle to my tutorial. I've also put a concise version of the
guide up on GitHub:
http://github.com/mreid/clojure-framework/tree/master
Regards,
Mark.
--
http://mark.reid.name
I came across a thread from Jul '08 which seems to be the definitive
on handling side-effects within transactions -
http://groups.google.co.za/group/clojure/browse_thread/thread/d645d77a8b51f01/667e833c1ea381d7
Adrian.
On Wed, Apr 1, 2009 at 9:24 AM, Timothy Pratley
timothyprat...@gmail.com
On Mar 31, 11:33 pm, Attila Babo babo.onl...@gmail.com wrote:
Hey, here is another clojure user from Copenhagen. I'm a Hungarian but
living here so please count me in!
Cool. I guess I will be arranging our first meeting at JAOO.
Keep an eye on the site for other dcug news.
-- Karl
On Wed, Apr 1, 2009 at 6:00 AM, David Sletten da...@bosatsu.net wrote:
[snip]
Here's 'length' again:
(((fn [m]
((fn [future]
(m (fn [arg]
((future future) arg
(fn [future]
(m (fn [arg]
((future future) arg ))
(fn [rec]
(fn
On Apr 1, 5:46 am, Christophe Grand christo...@cgrand.net wrote:
Hello Korny,
I share your questioning.
On 1 avr, 06:57, Korny Sietsma ko...@sietsma.com wrote:
(A) one ref for the whole world - in which case how do I stop parallel
changes to two unrelated structures in the world from
Another Danish user here,
I am in Copenhagen. I can only support the initiative but i dont think
it will be possible to put so much effort into it.
I am mostly a casual user, using clojure for ad hoc processing /
conversion of various text file formats (like edifact, swift, xml ..)
in
On Apr 1, 6:57 am, Korny Sietsma ko...@sietsma.com wrote:
I have a world that is a list of structures
The world itself will change occasionally - i.e. I'll add or remove
structures from the overall list, and I'll regularly be reading the whole
list.
(C) both of the above - a ref for the
On Wed, Apr 1, 2009 at 12:00 PM, David Sletten da...@bosatsu.net wrote:
[snip]
I'm going to move forward with the negotiations, but I need to know
if you, the Clojure community, are on board here. Ultimately the
decision is going to come down to whether or not you find the APRiL
1.0
While we speak about function composition (or not),
you can also use the partial function creator to obtain point-free (no
need for anonymous function with formal argument declaration or use) code:
And with the use of comp, you could define the function without even
explicitly naming any formal
comp seems more appropriate here.
On Mar 31, 11:52 pm, kkw kevin.k@gmail.com wrote:
Hi folks,
I have some code where I wanted to:
- take a list of stuff (which includes another list inside)
- use 'seq-utils/flatten' to flatten the list
- use 'interpose' to add comma-delimiting
I've been going through Stuart Halloway's book, _Programming Clojure_,
and thinking about his deftarget macro has brought up some questions
as to how macros and special forms interact in clojure. The deftarget
macro needs to produce a def form that has metadata on its first
argument,
On Apr 1, 2009, at 14:47, Rich Hickey wrote:
I've added get-method (SVN 1338).
Great, thanks!
Note how you can name methods for diagnostic purposes. This doesn't
introduce names into the namespace, just puts a name on the fn object.
It's also useful for recursive calls, if you are sure you
On Wed, Apr 1, 2009 at 8:28 AM, christ...@mvonessen.de
christ...@mvonessen.de wrote:
Hi,
I wanted to use clojure for some scripting-like tasks (mostly
experimenting with clojure's abilities).
You might be interested in taking a look at nailgun:
On Apr 1, 2009, at 16:28, Kevin Van Horn wrote:
But
(def (wmd x {:a 1}) 37)
gives me an error: Second argument to def must be a Symbol. This
confuses me. Doesn't macro expansion happen entirely before
evaluation? So before the def special form is evaluated, (wmd x {:a
1}) should
I like it, though I would prefer the more concise function y (lower
case).
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No change. I think made a small script that spends a large amount of
time in java.lang.reflect.Array.setInt too:
(set! *warn-on-reflection* true)
(time
(dotimes [_ 1]
(let [#^ints arr (int-array 200)]
(dotimes [i 200]
(aset-int arr i i)
So maybe I should try to see what
On Wed, Apr 01, 2009 at 10:42:02AM -0400, Victor Rodriguez wrote:
On Wed, Apr 1, 2009 at 8:28 AM, christ...@mvonessen.de
christ...@mvonessen.de wrote:
Hi,
I wanted to use clojure for some scripting-like tasks (mostly
experimenting with clojure's abilities).
You might be
On Apr 1, 2009, at 16:42, Victor Rodriguez wrote:
You might be interested in taking a look at nailgun:
http://www.martiansoftware.com/nailgun/index.html.
I had tried nailgun a while ago, and still use it from time to time,
but I found that for code development it has a significant
Very cool.
On Wed, Apr 1, 2009 at 8:47 AM, Rich Hickey richhic...@gmail.com wrote:
I've added get-method (SVN 1338).
(derive ::Circle ::Shape)
(derive ::Rect ::Shape)
(defmulti area :Shape)
;note - you can name methods
(defmethod area ::Shape area-shape [x] nil)
(get-method area
Not an April Fool's joke! New lib clojure.contrib.test-is.tap adds
Test Anything Protocol (TAP) support to test-is. Use it like this:
;; (use 'clojure.contrib.test-is)
;; (use 'clojure.contrib.test-is.tap)
;;
;; (with-tap-output
;;(run-tests 'my.cool.library))
Warning: this doesn't
I've been playing around with rendering a mandelbrot set, and using
pure java it renders about 2 seconds on my machine, however it runs
about 10 times as slow in clojure, I was curious if I'm doing anything
obviously wrong, or if it's just life :) I do run it with the -server
flag, which does
On Mar 26, 6:24 pm, mikel mev...@mac.com wrote:
How would you write bound?
(defmacro bound? [nm [the-ns]]
`(let [nm-nsname# (namespace '~nm)
the-ns# (if nm-nsname#
(find-ns (symbol nm-nsname#))
(or ~the-ns ~clojure.core/*ns*))
nm#
I actually tried forcing the type hints and didn't really see a
noticeable improvement, just made the code hard to read for the most
part.
On Apr 1, 9:57 pm, CuppoJava patrickli_2...@hotmail.com wrote:
From a quick glance, I think the lack of type hints is what's slowing
down your Clojure
...for easy dependency management and no-compile project setup.
https://github.com/dysinger/clojure-pom/tree
Using maven only for the dependency management and to create a custom
repl script allows me to still use emacs/slime for dynamic development
of clojure code.
My motivation is 3 fold:
1)
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