You can wrap your code in (entities ...) and/or (identifiers ...) and
it will apply to all the java.jdbc calls inside.
Clojure/core have specifically said they don't want *dynamic-vars* in
contrib libraries.
We have thousands of lines of java.jdbc code at work and name mapping
hasn't been an
thx
2013/8/26 Marshall Bockrath-Vandegrift llas...@gmail.com
Dennis Haupt d.haup...@gmail.com writes:
(defn fib-n [n]
(let [fib (fn [a b] (cons a (lazy-seq (fib b (+ b a)]
(take n (fib 1 1
can't i do a recursion here? how can i achieve this without doing an
outer defn?
Oh right, there is the license hassle. I am going to contact JDotSoft and
see if it is possible to make it all more friendly!
вторник, 27 августа 2013 г., 4:26:42 UTC+4 пользователь Mikera написал:
JarClassLoader looks cool
Aren't there some pretty severe licensing restrictions though? Looks
It's a real problem for me too, I also wonder what was the intention behind
this. I guess there could be a very good reason for this special treatement
of nils, but I haven't seen it yet.
I would love to hear about this from people involved in core.async
development.
On Friday, August 16,
Hi list,
migae-examples https://github.com/greynolds/migae-examples is a series of
examples demonstrating the use of Clojure to implement servlets for both
standard servlet containers and Google App Engine. The purpose is not so
much to explain how to code as to show what's going on behind the
Hello,
I am new to clojure, and I am trying to define a function that turns a
function-name into a string, but I am stuck.
Here is what I tried:
user (defn some-func []
true)
I am looking for a function stringify that would do the following
user (stringify some-func)
some-func
I can
On 27/08/13 10:39, Erebus Mons wrote:
I am looking for a function stringify that would do the following
user (stringify some-func)
some-func
(- #'some-func
meta
:name
str)
(defn stringify [func]
(- func
var
meta
:name
str))
Jim
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On 27/08/13 13:13, Jim wrote:
(defn stringify [func]
(- func
var
meta
:name
str))
I'm sorry this won't work...try this:
(defn stringify [fvar]
(- fvar
meta
:name
str))
and pass in the var object like this:
(stringify (var some-func))
OR
(stringify #'some-func)
btw,
or convert it to a macro and it should work as you hoped :)
(defmacro stringify [f]
`(- ~f
var
meta
:name
str))
HTH,
Jim
On 27/08/13 13:26, Jim wrote:
On 27/08/13 13:13, Jim wrote:
(defn stringify [func]
(- func
var
meta
:name
str))
I'm sorry
The reason for not allowing nils isn't a complex one, and basically boils
down to the following:
a) to avoid race conditions, we need a single value to signal the channel
is closed. As mentioned, nil is the obvious choice for this as it matches
lazy seqs and fits well with the rest of clojure:
Jim wrote:
or convert it to a macro and it should work as you hoped :)
(defmacro stringify [f]
`(- ~f
var
meta
:name
str))
HTH,
Cool! That is exactly what I was looking for!
Best,
EM
Jim
On 27/08/13 13:26, Jim wrote:
On 27/08/13 13:13,
What are you all using these days? I've been using YourKit and I'm
fairly happy with it. Just making sure I'm not missing out on some new
hotness.
Cheers, Jay
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yep, yourkit
2013/8/27 Jay Fields j...@jayfields.com
What are you all using these days? I've been using YourKit and I'm
fairly happy with it. Just making sure I'm not missing out on some new
hotness.
Cheers, Jay
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On 27/08/13 15:06, Jay Fields wrote:
What are you all using these days? I've been using YourKit and I'm
fairly happy with it. Just making sure I'm not missing out on some new
hotness.
Cheers, Jay
I used to use JVisualVM and Jconsole but for some reason both stopped
working when I updated to
On 8/27/13 8:06 AM, Jay Fields wrote:
What are you all using these days? I've been using YourKit and I'm
fairly happy with it. Just making sure I'm not missing out on some new
hotness.
Cheers, Jay
YourKit plus VisualVM in some cases (I'm not as familiar w/YourKit and I
really like the
On 27 August 2013 20:45, Timothy Baldridge tbaldri...@gmail.com wrote:
The reason for not allowing nils isn't a complex one, and basically boils
down to the following:
a) to avoid race conditions, we need a single value to signal the channel
is closed. As mentioned, nil is the obvious choice
All your arguments come down to this:
I have an arbitrary seq of things I want to send down a channel. It's
exactly that concept I that I push against. Everything you've mentioned
thus far is a data structure. Channels are not data structures they are
concurrency management primitives, treat them
On Tue, Aug 27, 2013 at 10:51 AM, Mike Anderson
mike.r.anderson...@gmail.com wrote:
To me it's all about consistency with other Clojure constructs. You can
safely put nils in sequences, vectors, lists, sets etc.. nil is a valid
value just like anything else. So why can't you put them in a
In every use of channels I've had thus far, nil is better expressed as an
empty collection, false, 0, :tick, or some other ground value.
I agree completely. But I'll note that you mention false being useful...
If you're writing completely general operators, like map, which are
*sometimes* quite
Right, the use of false is a special case. I'm thinking of a mouse event
stream, may have a button channel that sends true or false based on the
state of the mouse button. Even saying that though, I would probably opt
for :clicked and :unclicked or somethig of that nature.
Timothy
On Tue, Aug
+1
We built a distributed software sending/receiving *messages* based on
different protocols.
All our protocols wrap data in an envelope. The receiver can then decide how to
handle the message based on the envelope. Obviously, nil makes a bad envelope.
A nil message on a channel never had any
Hi.
I'm writing to see if there's anyone out there using RxJava [1] from
Clojure and to get their opinion on it's current, built-in support for
non-Java languages.
Just to recap, the current implementation knows about clojure.lang.IFn
allowing functions to be passed directly to RxJava methods:
On Tue, Aug 27, 2013 at 7:51 AM, Mike Anderson mike.r.anderson...@gmail.com
wrote:
On 27 August 2013 20:45, Timothy Baldridge tbaldri...@gmail.com wrote:
The reason for not allowing nils isn't a complex one, and basically boils
down to the following:
a) to avoid race conditions, we need a
Hi,
I just managed to use core.async for the need I described in my
previous email and tried to push this to heroku, but git bitten:
Could not find artifact core.async:core.async:jar:0.1.0-SNAPSHOT in
clojars (https://clojars.org/repo/)
Could not find artifact
On 8/27/13 10:03 AM, Dave Ray wrote:
Hi.
I'm writing to see if there's anyone out there using RxJava [1] from
Clojure and to get their opinion on it's current, built-in support for
non-Java languages.
Just to recap, the current implementation knows about clojure.lang.IFn
allowing functions
As long as we don't go full Haskell mode:
data Message a = Value a | Done
On Tue, Aug 27, 2013 at 11:20 AM, Timothy Baldridge tbaldri...@gmail.comwrote:
Right, the use of false is a special case. I'm thinking of a mouse event
stream, may have a button channel that sends true or false based
Hey, I encountered late one night but it was because oss.sonatype.org was
temporarily down for scheduled maintenance. Are you still seeing this now?
I just pushed to heroku and saw it pull the core.async dep as expected:
Retrieving
Hi Shaun,
Shaun Gilchrist shaunxc...@gmail.com writes:
Hey, I encountered late one night but it was because oss.sonatype.org
was temporarily down for scheduled maintenance. Are you still seeing
this now? I just pushed to heroku and saw it pull the core.async dep
as expected:
Retrieving
I still don't see why you would want to to arbitrarily limit what you can
put down a channel. FWIW, plenty of other concurrency management primitives
allow nils as values (java.util.concurrent.AtomicReference, Clojure atoms /
refs / agents to name but a few).
My motivating use case is the ability
or, the dreaded no matching ctor found exception.
Is there a way to write the function
(defn eval-at-one [f] (eval `(~f 1)))
such that it works when invoked like this:
(eval-at-one (fn [x] x))
;; -- 1
and like this
(eval-at-one (with-meta (fn [x] x) {}))
;; - IllegalArgumentException No
On Wed 28 Aug 2013 at 09:38:06AM +0800, Mike Anderson wrote:
Of course, if anyone has an actual technical argument why it is
necessary/better to use nil as a sentinel value, I would be delighted to
learn of it and would consider myself enlightened.
Forgive me if someone already mentioned
Well, that's certainly a good explanation of why core.async works the way
it does now - it's a natural and sensible starting point to build on Java
Queues.
I don't think that this necessarily implies that we have to follow this
model in the future Clojure API though. The Java designers didn't
Hi,
(take 1 (map #(do (print \.) %) (range)))
result: (0)
I think it should be (.0), why? thank you!
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chunked lazy sequences
On Wednesday, 28 August 2013 12:51:27 UTC+10, ljcp...@gmail.com wrote:
Hi,
(take 1 (map #(do (print \.) %) (range)))
result: (0)
I think it should be (.0), why? thank you!
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I feel like this question has been asked about a trillion times, but I was
having a hard time finding a straight answer. Is there a really
straightforward way in the standard library or in one of the contrib
libraries to do something like this:
(nested-map inc '(1 (2 3) (4 (5 (6) === '(2
Clojure.walk
On Aug 27, 2013 10:05 PM, JvJ kfjwhee...@gmail.com wrote:
I feel like this question has been asked about a trillion times, but I was
having a hard time finding a straight answer. Is there a really
straightforward way in the standard library or in one of the contrib
libraries to
On Tue 27 Aug 2013 at 07:42:53PM -0700, Mikera wrote:
On Wednesday, 28 August 2013 09:54:51 UTC+8, guns wrote:
On Wed 28 Aug 2013 at 09:38:06AM +0800, Mike Anderson wrote:
Of course, if anyone has an actual technical argument why it is
necessary/better to use nil as a sentinel value,
I suppose that works, but it seems a little inelegant to do this:
(prewalk #(if (sequential? %) % (f %)) xs)
instead of just
(prewalk f xs)
On Tuesday, 27 August 2013 20:06:38 UTC-7, gfredericks wrote:
Clojure.walk
On Aug 27, 2013 10:05 PM, JvJ kfjwh...@gmail.com javascript: wrote:
I feel
On Wed, Aug 28, 2013 at 12:18 PM, guns s...@sungpae.com wrote:
Oh, I was confused; I was thinking about sentinel values in user code.
Yes, I imagine a single private (Object.) would work just fine, with
very little overhead.
First, I'd hope that sentinel values would be handled by the
On Wed 28 Aug 2013 at 12:50:19PM +0900, Alan Busby wrote:
On Wed, Aug 28, 2013 at 12:18 PM, guns s...@sungpae.com wrote:
Oh, I was confused; I was thinking about sentinel values in user
code. Yes, I imagine a single private (Object.) would work just
fine, with very little overhead.
On 28 August 2013 11:50, Alan Busby thebu...@gmail.com wrote:
On Wed, Aug 28, 2013 at 12:18 PM, guns s...@sungpae.com wrote:
Oh, I was confused; I was thinking about sentinel values in user code.
Yes, I imagine a single private (Object.) would work just fine, with
very little overhead.
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