On Nov 22, 7:30 am, Sean Corfield seancorfi...@gmail.com wrote:
On Mon, Nov 21, 2011 at 12:50 PM, Alan Malloy a...@malloys.org wrote:
This is way, way faster than using reflection. And all you need in
order to remove the duplication is a macro that does the hinting for
you:
Well, if
Here is too a problem with building proper path, after M-x clojure-
jack-in I got in buffer
Debugger entered--Lisp error: (error Could not start swank server:
java.lang.NoClassDefFoundError: Files\\Java\\jre6\\lib\\ext\\QTJava/
zip;\;;test;src;C:\\Java\\/lein\\self-installs\\leiningen-1/6/0-
Maybe I can fix it? Just point me the routine for building path.
I will extract it and make unit test which reproduces this error.
Than I will fix it. Maybe it will help in both cases - on standalone
emacs for windows and emacs in cygwin.
On Nov 22, 10:04 am, Michael Jaaka
The classpath option -cp is not handling correctly the spaces. I'd
suggest you to not have spaces in the Windows's paths.
Install Java not in c:\Program Files, but for example in c:\develop\Java6
On Tue, Nov 22, 2011 at 10:04 AM, Michael Jaaka
michael.ja...@googlemail.com wrote:
Here is too a
I have made some investigation and I noticed a problem at line 56 in
test/clojure/test_clojure/java/io.clj
There is a difference between toURL and toURI
first returns absolute path with spaces, second returns absolute path
with %20 in places where the spaces should be
now in cygwin and probably
Sorry the line is 46 not 56 in the file
https://github.com/richhickey/clojure/blob/master/test/clojure/test_clojure/java/io.clj
On Nov 22, 11:39 am, Michael Jaaka michael.ja...@googlemail.com
wrote:
I have made some investigation and I noticed a problem at line 56 in
Hmm, wondering if having a formal datastructure representing this
flowchart, and then deriving a wizard from this flowchart (text based in
REPL, GUI based in CCW), would be fun ? (and maybe also useful ;-) )
2011/11/17 Chas Emerick cemer...@snowtide.com
For those that haven't seen it, I
Here is the sample code which shows the difference
(ns clojure.test-clojure.java.io
(:use clojure.test clojure.java.io
[clojure.test-helper :only [platform-newlines]])
(:import (java.io File BufferedInputStream
FileInputStream InputStreamReader InputStream
Hi,
I've encountered this behaviour of *print-dup*:
user (defstruct foo :field)
#'user/foo
user (binding [*print-dup* true] (pr-str (struct foo 10)))
#=(clojure.lang.PersistentStructMap/create {:field 10})
user (read-string (binding [*print-dup* true] (pr-str (struct foo 10
I suspect that Windows users are a minority here, and cygwin users are a
minority of that minority :)
So I'm sure that help with maintaining cygwin compatibility would be
appreciated. You should start by sending a contributor agreement:
http://clojure.org/contributing
- Chris
--
You
Hi,
Why keep both butlast and drop-last in clojure.core? The latter has the
advantage that it's lazy and can drop off more than one element from the
end of a seq. In contrast, I can't think of any advantage of butlast,
except that it seems to be slightly (ca 20%) faster than (doall (drop-last
Hi !
An interresting point of clojure is that it is dynamically typed. This
for a reason. There is a tradeoff in performance but the benefit is
that the code is shorter, more expressive and reusable.
Type hinting should be exceptionnal and used only in critical areas
when you see a huge boost in
On Tuesday, 22 November 2011 12:26:54 UTC+5:30, Andrzej wrote:
On 11/22/2011 02:10 PM, Timothy Baldridge wrote:
So I got thinking about clojure pypy tonight, and got thinking how
easy it would be to adapt my old code to run as a interpreter. So I
pulled in a few files, implemented a few
Folks--
I'm working on an experimental library which interfaces with external
resources (i.e., not purely functional) and I'd like the library to log
things when stuff goes wrong (say, with network connections). I don't want
to throw exceptions and let clients handle it because I want to build
Hi,
Do you have the :disable-implicit-clean option set to false in your project.clj
file ?
If not, add it to remove the classes from dependencies that otherwise may
pollute your target.
As far as standard logging in a lib, it might be time to rely on
clojure.tools.logging
systematically.
We
On 11/21/11 7:50 AM, Ralph wrote:
I want to propose that Clojure libraries should be fully type-hinted
-- that is, they should be compiled with the *warn-on-reflection*
option turned on and type hints place wherever possible.
I understand the argument against type-hinting end-user code until a
Nicolas bousque...@gmail.com writes:
An interresting point of clojure is that it is dynamically typed. This
for a reason. There is a tradeoff in performance but the benefit is
that the code is shorter, more expressive and reusable.
Type hinting should be exceptionnal and used only in
I have been using Clojure to write tests on RESTful applications.
Since the requests are independent, parallelizing would speed things
along. What is the best approach? Using pmap is the obvious first
step. Afaik, pmap only creates a small pool of threads. Is there more
to gain by going to the
There's an approach using agents described here:
http://travis-whitton.blogspot.com/2009/07/network-sweeping-with-clojure.html
It's a bit old, so somethings in the example could be a bit outdated, but
the idea may help you forward,
/Linus
2011/11/22 AndyK andy.kri...@gmail.com
I have been
I'm not and don't feel like an expert to contribute.
However I have found that this is a common pitfall
Here is the full story described
http://maven.apache.org/plugin-developers/common-bugs.html#Converting_between_URLs_and_Filesystem_Paths
The same is in official doc from Oracle
On 22 Lis,
Gary,
You are probably removing try/catch as well. ClassNonFoundException is
expected and silenced with catch.
(defn cl-factory
Returns a Commons Logging-based implementation of the
LoggerFactory
protocol, or
nil if not available.
[]
(try
(Class/forName foo.bar)
; eval removed
I think you're confusing compile-time with run-time. A try-catch
wouldn't affect the compiler. Perhaps you actually have
commons-logging in your classpath? It's pulled in by many libraries.
Or you forgot to remove the quote in addition to removing the eval in
your testing.
Here's the code that
I think there is another reasonable case for a type hint. If you've
written a function that is not generic, where one type and only one
type will do, then why not add a type hint as a form of documentation
if nothing else?
On Nov 21, 1:58 pm, Nicolas bousque...@gmail.com wrote:
Hi !
An
I'm guessing that removing the non-project classes and then just declaring
a dependency should work well enough.
Couldn't find :disable-implicit-clean in the sample project file
technomancy maintains on his github repo, but did use
:clean-non-project-classes, which removed the compiled logging
On Mon, Nov 21, 2011 at 9:10 PM, Keith Irwin keith.ir...@gmail.com wrote:
What's the standard way for including logging in a library? I've included
clojure.tools.logging as a dependency, but the resulting jar (lein install),
contains clojure.tools.logging classes. Is that okay, given any
Also I think this line doesn't actually do anything: (Class/forName
foo.bar)
It will effectively just ask the classloader to load the class. You
removed more than the eval in your referenced code, you removed the code
that did anything. That code needs to be there. It's eval'd because
Roman, I apologize, I never thanked you for this. I finally got around to
trying this out last night and put together this small project for anyone
else interested:
https://github.com/sritchie/contour
I'm using Noir server-side. This is just a demo now, but we'll see what
comes of it. Here's
Andy,
You can also look into using futures (pmap uses future).
In section 11.6.1 of Joy of Clojure there is a recipe how to
dispatch multiple RPC calls in parallel using as-futures macro.
Obviously, this depends on what you want to do with results of your
REST calls.
On Nov 22, 11:16 am, AndyK
Gary,
You were right with your initial reply. Sorry I did not get it. Thanks
for your help in understanding this.
On Nov 22, 1:58 pm, Gary Trakhman gary.trakh...@gmail.com wrote:
Also I think this line doesn't actually do anything: (Class/forName
foo.bar)
It will effectively just ask the
Oups, I'll look at it... we may have well upgraded Lein without reviewing
project.clj options.
We're about to deliver another version of our software so it's just about time
to do that.
On Tue, 22 Nov 2011 10:57:47 -0800
Phil Hagelberg p...@hagelb.org wrote:
On Mon, Nov 21, 2011 at 9:10 PM,
Clojure futures use the send-off thread-pool (unbounded), which is defined
like this:
from Agent.java:
final public static ExecutorService soloExecutor =
Executors.newCachedThreadPool(createThreadFactory(clojure-agent-send-off-pool-%d,
sendOffThreadPoolCounter));
So, it's using executors.
We have been exploring TorqueBox with great interest for our JRuby
apps. So, It makes sense that the Immutant AS (Based on JBoss 7) has
appeared for Clojure
Anyone in this group testing it?
Cheers,
Owen
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Hi,
Just to add another way of doing the same thing, I used the following
when I was using Google Maps in Clojurescript:
(def map-opts (extend-object! (js-obj) {zoom 4
center center-of-us
mapTypeId types/ROADMAP}))
Hi Owen,
I'm one of the devs of TorqueBox and Immutant. We're trying to get the
first 2.0 release of TorqueBox out this month, so that's taking up a
good chunk of focus, but we're actively hacking on Immutant as well.
At this point, we have web (ring), messaging, and daemons mostly
working, but
For those who do Literate Programming in Emacs, what do you use? I was
looking at
org-babel-clojurehttp://orgmode.org/worg/org-contrib/babel/languages/ob-doc-clojure.htmlwhich
says:
You will need to install the following packages: clojure-mode,
swank-clojure, slime, slime-repl
But when
I should add that I am starting with a working setup (able to M-x
clojure-jack-in and compile and execute stuff in the REPL as expected).
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It should work as expected if you follow
http://orgmode.org/worg/org-contrib/babel/languages/ob-doc-clojure.html
and use the stand-alone version of swank-clojure (Section Connecting
with SLIME https://github.com/technomancy/swank-clojure).
Looking at ob-clojure.el
Thanks for the info, Jim. We are looking forward to testing TorqueBox 2.0
soon
-Owen
On Tue, Nov 22, 2011 at 4:11 PM, Jim Crossley jcrossl...@gmail.com wrote:
Hi Owen,
I'm one of the devs of TorqueBox and Immutant. We're trying to get the
first 2.0 release of TorqueBox out this month,
Is it possible to require or use a namespace as metadata inside
the function definition? Something like
(defn f
{:use '[clojure.set]}
[] ... )
If yes, can anybody point me where can I find an exact syntax?
If no, why not?
Thank you,
Igor
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You received this message because you are
If you try to do it without eval and you don't have the apache stuff
on your classpath, then you get an exception while compiling, before
class/forname is ever called.
On Nov 22, 11:33 am, vitalyper vitaly...@yahoo.com wrote:
Gary,
You were right with your initial reply. Sorry I did not get
On Tue, Nov 22, 2011 at 2:52 PM, Igor TN igor...@gmail.com wrote:
Is it possible to require or use a namespace as metadata inside
the function definition? Something like
Your looking for the (require ..), (use ..) and (refer ..) functions -
see http://clojuredocs.org for details and examples.
On Tue, Nov 22, 2011 at 3:13 PM, Sean Corfield seancorfi...@gmail.com wrote:
On Tue, Nov 22, 2011 at 2:52 PM, Igor TN igor...@gmail.com wrote:
Is it possible to require or use a namespace as metadata inside
the function definition? Something like
Your looking for the (require ..), (use ..)
On Tue, Nov 22, 2011 at 3:14 PM, Sean Corfield seancorfi...@gmail.com wrote:
On Tue, Nov 22, 2011 at 3:13 PM, Sean Corfield seancorfi...@gmail.com wrote:
On Tue, Nov 22, 2011 at 2:52 PM, Igor TN igor...@gmail.com wrote:
Is it possible to require or use a namespace as metadata inside
the
On Tue, Nov 22, 2011 at 3:18 PM, Kevin Downey redc...@gmail.com wrote:
require/use/import etc make global changes to a namespace(compilation
environment), best not to hide that inside a function.
True. Which is why I went back and re-read the OP's question and
realized I'd missed as metadata
something distasteful I imagine
On Tue, Nov 22, 2011 at 3:20 PM, Sean Corfield seancorfi...@gmail.com wrote:
On Tue, Nov 22, 2011 at 3:18 PM, Kevin Downey redc...@gmail.com wrote:
require/use/import etc make global changes to a namespace(compilation
environment), best not to hide that inside a
Looks like he'd like to make a namespace available *only* in a local
context, which some languages support, like Scala, for one. I never have a
need for that, really.
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I have a bit of a weird setup I think. I put clojure-1.3.0.jar in ~/.clojure
and set a variable for org-mode according to the advanced setup instructions. I
also run org-mode from source. As a result I make sure to add org-mode's lisp/
dir to my load path.
Sent via mobile
On Nov 22, 2011, at
Yes, I meant local context. In principle, this could help to avoid
namespacing conflicts in certain cases. But not a big deal, just
wondering if the language supports that. Apparently not. Cool with me.
Thanks everybody!
On Nov 22, 6:59 pm, Alex Baranosky alexander.barano...@gmail.com
wrote:
Hi..I've a little problem using recur for recursive calling...I'm
trying do the clojure koans and the recursive reverse function
[1 2 3 4] - '(4 3 2 1)
first I try this code:
(defn recursive-reverse [coll]
(loop [col coll mem '()]
(if (empty? coll)
mem
((cons (last col) mem)
On Tue, Nov 22, 2011 at 8:49 PM, coco clasesparticulares...@gmail.com wrote:
((cons (last col) mem)
(recur (butlast col) mem)
...
((cons (last col) mem)
(recur col mem)
In both of these, you have a function call with (cons (last col) mem)
as the function...
thanks for the answer, well, I rewrote the function lik this:
(defn recursive-reverse [coll]
(loop [col coll mem '()]
(if (empty? col)
mem
(recur (rest col) (cons (first col) mem)) )))
I've a little logic problem but I fix it
thanks
On Nov 23, 12:54 am, Sean Corfield
On Tue, Nov 22, 2011 at 9:22 PM, coco clasesparticulares...@gmail.com wrote:
thanks for the answer, well, I rewrote the function lik this:
(defn recursive-reverse [coll]
(loop [col coll mem '()]
(if (empty? col)
mem
(recur (rest col) (cons (first col) mem)) )))
I've a little
coco clasesparticulares...@gmail.com writes:
thanks for the answer, well, I rewrote the function lik this:
(defn recursive-reverse [coll]
(loop [col coll mem '()]
(if (empty? col)
mem
(recur (rest col) (cons (first col) mem)) )))
I've a little logic problem but I fix
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