Heroku and lein-cljsbuild
Hello all, I'm having trouble getting clojurescript to compile with lein-cljsbuild on heroku. It works locally through foreman and runs fine on heroku other than the cljs compilation issue. I've tried a few things. First of all, heroku doesn't put :dev-dependencies on the classpath by default[1]. When I enable LEIN_DEV, the :dev-dependencies are downloaded, but the app times out while booting[2]. If I try moving lein-cljsbuild from :dev-depencies to :plugins in my project.clj, heroku rejects my git push[3]. Anyone faring any better? Thanks, Tim [1] app[web.1]: Warning: problem requiring leiningen.cljsbuild hook: Could not locate leiningen/cljsbuild__init.class or leiningen/cljsbuild.clj on classpath [2] heroku config:add LEIN_DEV=y ... heroku[web.1]: Starting process with command `lein run -m tl.core` app[web.1]: Compiling ClojureScript. ... (downloads lots of dependencies. can't finish before timing out?) ... heroku[web.1]: Error R10 (Boot timeout) - Web process failed to bind to $PORT within 60 seconds of launch [3] heroku config:remove LEIN_DEV ... Copying 4 files to /tmp/build_c47l93hhsxf4/.lein-plugins exec: 1: -client: not found ! Failed to install dependencies with Leiningen ! Heroku push rejected, failed to compile Clojure app ! [remote rejected] sessions - master (pre-receive hook declined) -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
ClojureScript: browser REPL omitting namespace in generated JS
Hello, I'm encountering a problem where the browser REPL sometimes omits the ClojureScript namespace in its generated JavaScript, e.g. (def x 42) compiles to .x = 42 instead of foo.x = 42. I've put together a minimal project, with steps to reproduce, on GitHub: https://github.com/harto/cljs-eval-test It looks to me like compiling a set of ClojureScript files (using cljs.closure/build) causes some side-effect that prevents the problem. See the GitHub README for details. I'm on Mac OS X 10.5 with Java 1.6.0_26. Regards, Stuart -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Clojurescript One: (def fiv 5) compiles to .fiv = 5;\n ?
Hi, I've come across this too. Please see my message ClojureScript: browser REPL omitting namespace in generated JS. Regards, Stuart On 16 January 2012 08:14, Indy inder...@indy.io wrote: Having the same issue and the only way I've resolved it is by having both the server and the cljs-repl running in the same repl. - run script/repl from the *shell* or launch it as an inferior-lisp - (use '[one.sample.dev-server :only (run-server cljs-repl)]) - (run-server) - (cljs-repl) -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Clojurescript One and Websockets
clojure + web sockets, not using aleph: http://blog.jayfields.com/2011/02/clojure-web-socket-introduction.html On Mar 1, 2012, at 10:51 PM, Brian Rowe wrote: Hi, I'm thinking about using clojurescript one a starting point for a web game. I would like to use websockets as the primary communication mechanism between the browser and the server. As far as I know Zack Tellman's Aleph is the only clojure web server that supports websockets. Is this true? If so, are there any guides showing how to modify clojurescript one to use Aleph? If there are no guides, how much work would it take to modify cljs one to use aleph? Thanks! -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: defmulti and defmethods in separate namespaces without circular references?
On Thu, Mar 1, 2012 at 8:33 PM, Cymen Vig cymen...@gmail.com wrote: I attempted to do something like this: (ns parent) (defmulti my-method (fn [x] (:method x)) (ns child1) (defmethod my-method :zzz ...) (ns child2) (defmethod my-method :aaa ...) However the problem is the children need to use the parent namespace in order to have the method definition and the code that uses all of this needs to use all the namespaces too. This creates a circular reference and compilation fails. I will not in any way claim to know how or why this works. I'm just starting to use multimethods myself, but I'll give you my set up that appears to be working at the moment. I have a namespace: (ns store.store) (defmulti serialize method) (defmulti slurp method) in store.clj I have 1 implementation: (ns store.file-system [:use [store.store]] …) (def base ) (defmethod serialize :file-system [_ file-name contents] (fs-utils/write-to contents (str base / file-name))) (defmethod slurp :file-system [_ file-name] (clojure.core/slurp (str base / file-name))) I then use this from another namespace, requiring store.store and store.store.file-system: (ns library [:require [wallpaper-manager-core.store.file-system :as store-file-system]] [:require [wallpaper-manager-core.store.store :as store]]) (binding [store-file-system/base (fs/home)] (def library (ref (read-library) :validator library-validator))) (defn serialize-library [library] (store/serialize :file-system library.clj library)) And this all seems to work fine for me. Maybe someone else can explain why it does for me and doesn't for you. Maybe it has something to do with `use` vs. `require`? 1) Is it a bad idea to try to put the defmulti and defmethods into separate namespaces? I don't personally see it as a bad idea, simply because I see defmulti as a nice, clean way of defining an Interface with multiple implementations to choose from. One of the ways that I'm using it it to implement my html vs. json routes. I'm hoping that I can have a route1.json namespace for all of the json requests and route1.html for all the html requests. Based on my success with the store namespace I don't foresee this being a problem, but maybe it will. I heavily edited the code to remove uninteresting bits and I didn't test it so be aware of that. :) Hope that helps! -- In Christ, Timmy V. http://blog.twonegatives.com/ http://five.sentenc.es/ -- Spend less time on mail -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Is it possible to extend a parameterized type using gen-class?
On Thu Mar 1 21:53 2012, sim wrote:
Hi all,
This has me stumped and I found another message:
https://groups.google.com/forum/?fromgroups#!searchin/clojure/parameterised$20type/clojure/8YxzIYXH49c/xCxkMaGXBzUJ
that says it isn't possible, but that was back in 2009, is it still not
possible? Any work arounds apart from doing some of it in Java?
I would like to be able to write some xWiki Macros in clojure, I have some
in java already but moving it all to clojure would be better.
The java example is as follows:
public class ExampleMacro extends AbstractMacroExampleMacroParameters
Which is from here:
http://rendering.xwiki.org/xwiki/bin/view/Main/ExtendingMacro
Any help/pointers would be greatly appreciated.
-- sim
Yes, it is possible. At the byte-code level there is (at least at
run-time) no difference between a generic and a non-generic class. All
methods take/return the generic type just use Object.
For example, take the following implementation of AbstractCollectionE:
--- begin ExampleCollection.clj ---
(ns ExampleCollection
(:gen-class :extends java.util.AbstractCollection))
(def some-numbers [2 3 5 7 11 13])
(defn -size [_] (count some-numbers))
(defn -iterator [_] (.iterator some-numbers))
--- end ExampleCollection.clj ---
You can use it as in the following:
--- begin Example.java ---
import java.util.Collection;
public class Example {
public static void main(String[] args) {
CollectionLong foo = new ExampleCollection();
for (Long bar : foo) {
System.out.println(bar);
}
}
}
--- end Example.java ---
The Java file will compile and run, though it will complain about doing
an unsafe conversion. This means that if the type that occurs at
runtime is wrong, you'll get a ClassCastException.
In any case, you can also use proxies to accomplish the same task if you
don't want to gen-class.
I hope this helps.
Sincerely,
Daniel
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Clojurescript wiki needs updating
Hi, I noticed that [1] in the Runtime Polymorphism section says that multimethods are not currently implemented in cljs. I don't think that is correct. [1] https://github.com/clojure/clojurescript/wiki/Differences-from-Clojure -- László Török -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: for behavior difference between clojure and clojurescript?
Hi all, thanks for responding. On Mar 1, 1:21 am, David Nolen dnolen.li...@gmail.com wrote: Yes it's a known issue. Right now, = only works for two args. For the time being this is for performance reasons, a decent = is critical. I see. Is there a know issues list or is the problem something that should be noted on the differences to clojure page? Or would you say clojurescript is in an early stage where you should expect those issues and such a list would be high maintenance. I just found the cljs jira instance. Another thing that comes to mind would be to create an open and confirmed issues filter that could be linked in the wiki. Regards, Ben. -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: need hint for A nil key on 4clojure
thanks On 2月29日, 下午10时00分, Roman Perepelitsa roman.perepeli...@gmail.com wrote: Most 4clojure exercises are meant for you to familiarize yourself with the clojure standard library. Usually you'll spend more time looking for the appropriate function on clojuredocs than actually coding the solution. Here's the section on collections:http://clojuredocs.org/quickref/Clojure%20Core#Collections+-+Sequences Roman. 2012/2/29 Kevin Ilchmann Jørgensen kijm...@gmail.com So, you need to give it a function which takes an key and a collection. (fn [k coll] ...) It should return true if two things are true. That the collection _contains_ the key, and the key is _nil_ Enjoy! /Kevin On Wed, Feb 29, 2012 at 7:15 AM, weiyongq weiyo...@gmail.com wrote: A nil key http://www.4clojure.com/problem/134 l look it no Elementary.please give me some help. -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Looking to help out with an open source project...
Hello google Clojure group. I'm fairly new to clojure but what I've used and implemented so far has been quite interesting. So I was wondering if anyone knew of/or has some open source projects written in Clojure that I could get involved in and help out, preferably something small as this will be my first involvement in open source. My day job is mostly using jquery and javascript for UI work so that's where my expertise lies but anyway I'm looking to improve and help out. Thanks for reading and I look forward to helping out! -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Bret Victor's live editable game in ClojureScript
Hi Chris I think you may have actually missed the point in the video :) There's no pausing necessary - if I made the guy move on his own and changed his speed, you'd see it happen immediately. The thing is, in order to change the speed of the guy you need to refocus your eyes from the guy and start to scroll up and down in the code panel on the left. And then, 30 sec later(!) when you find the place where the speed is defined then you need to take a look at the keyboard to see where your fingers are and... grrr :( And then when you want to change the color you need to do the same again... grrr :( And if you use different keyboard layouts and start to type 'magenta' or '#XYZ' then you realise 'Oh merde. Where are the '#' and 'm' keys? Which keyboard layout am I using right now?' On french, german and english keyboards the characters like '()#$[] are mapped somewhere else. On the french keyboard even the 'm' is not there where you would look for it... grrr :( And then when you finally found the right place in the code and the right keyboard layout you come to the point where you want to select 'exactly this(!) shade of azure blue' and you start to wonder what the hell is color code for it... grrr :( So no a slider for speed and color change makes a *huge* difference Based on what I've heard so far, my implementation is actually more real than what Victor himself created and does everything except for the slider/color-picker in his demo. Well, yes that's true. I find your work really great! cheers Bost -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: for behavior difference between clojure and clojurescript?
On Thu, Mar 1, 2012 at 3:21 AM, Benjamin Peter benjaminpe...@arcor.dewrote: Hi all, thanks for responding. On Mar 1, 1:21 am, David Nolen dnolen.li...@gmail.com wrote: Yes it's a known issue. Right now, = only works for two args. For the time being this is for performance reasons, a decent = is critical. I see. Is there a know issues list or is the problem something that should be noted on the differences to clojure page? JIRA is the issues list. Or would you say clojurescript is in an early stage where you should expect those issues and such a list would be high maintenance. ClojureScript is still in an early stage. But ... many things are now implemented and performance enhancements are becoming a higher priority. I just found the cljs jira instance. Another thing that comes to mind would be to create an open and confirmed issues filter that could be linked in the wiki. Linking to a CLJS issues filter is a good idea. Regards, Ben. -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: ClojureScript: browser REPL omitting namespace in generated JS
Please open a ticket in JIRA. Thanks! On Fri, Mar 2, 2012 at 4:50 AM, Stuart Campbell stu...@harto.org wrote: Hello, I'm encountering a problem where the browser REPL sometimes omits the ClojureScript namespace in its generated JavaScript, e.g. (def x 42) compiles to .x = 42 instead of foo.x = 42. I've put together a minimal project, with steps to reproduce, on GitHub: https://github.com/harto/cljs-eval-test It looks to me like compiling a set of ClojureScript files (using cljs.closure/build) causes some side-effect that prevents the problem. See the GitHub README for details. I'm on Mac OS X 10.5 with Java 1.6.0_26. Regards, Stuart -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
[ANN] Leiningen HTML5 Docs Plugin (first release)
Hi all, since I've never managed to get autodoc or marginalia running, I've written my own API docs generator. It lived happily as a leiningen task in some project of mine with anything needed for generating docs for this project shamelessly hard-coded, but today I found some spare time to rip it out and make a stand-alone leiningen plugin out of it. The homepage is https://github.com/tsdh/lein-html5-docs and there you'll find how to install and configure it for your project's needs. To get an impression on how the generated docs look like, I've run it on the current git master of clojure itself. Here's the result: http://userpages.uni-koblenz.de/~horn/clojure-docs/ This first release already has version number 1.0.2, because I found lots of bugs and unexpected things when running it on clojure itself. 1.0.0 did the job for my projects... ;-) Bye, Tassilo -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Clojure in Python
Well first of all, the real main drive, is that I don't know Java libs nearly as well as Python libs. Secondly, there's a lot of cruft (imo) in Clojure that doesn't need to exist in a dynamic VM. For instance, there's no reason to new up something with (Foo. 1 2). In python objects are functions, so (Foo 1 2) works just fine. On a similar note, are you using Python's approach to characters (they are simply a string of length 1)? -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Clojure in Python
On a similar note, are you using Python's approach to characters (they are simply a string of length 1)? Yes, that's exactly what we're doing. As an aside note, the fact that Python is so dynamic allows us to do some really interesting things with sequences: https://github.com/halgari/clojure-py/blob/master/clojure/lang/indexableseq.py These 24 lines of python code allow us to create a seq out of any object in Python that supports .__getitem__ So out-of-the box, you can do treat python strings as sequences: user= (first foo) f That IndexableSeq works with python lists, tuples, unicode, strings, etc. Timothy -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Serializing ClojureScript data structures
In Clojure (str {:a 1}) returns {:a 1}.
In ClojureScript (str {:a 1}) returns [Object object].
As a result, in order to send data to and from the server I've been
doing this: (goog.json/serialize (cljs-js x)). This seems like
unnecessary overhead to convert everything a JS object first, is there
a technical reason why ClojureScript behaves differently here? Or has
this just not been implemented yet?
Thanks
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Re: Serializing ClojureScript data structures
pr-str will do what you want. That said we should probably add toString
methods to the core datatypes to prevent this surprise.
David
On Fri, Mar 2, 2012 at 11:14 AM, Chris McBride cmm7...@gmail.com wrote:
In Clojure (str {:a 1}) returns {:a 1}.
In ClojureScript (str {:a 1}) returns [Object object].
As a result, in order to send data to and from the server I've been
doing this: (goog.json/serialize (cljs-js x)). This seems like
unnecessary overhead to convert everything a JS object first, is there
a technical reason why ClojureScript behaves differently here? Or has
this just not been implemented yet?
Thanks
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Re: inconsistency in (keyword…) constructor
PS. same issue with (symbol name) and (symbol ns name)… Huh, somehow I noticed this issue with symbol, but didn't see it with keyword. I guess I've need the two arg version of symbol, but never needed the two arg version of keyword. See some related discussion here: https://groups.google.com/d/topic/clojure/n25aZ5HA7hc/discussion -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Serializing ClojureScript data structures
Ok Thanks
On Mar 2, 11:19 am, David Nolen dnolen.li...@gmail.com wrote:
pr-str will do what you want. That said we should probably add toString
methods to the core datatypes to prevent this surprise.
David
On Fri, Mar 2, 2012 at 11:14 AM, Chris McBride cmm7...@gmail.com wrote:
In Clojure (str {:a 1}) returns {:a 1}.
In ClojureScript (str {:a 1}) returns [Object object].
As a result, in order to send data to and from the server I've been
doing this: (goog.json/serialize (cljs-js x)). This seems like
unnecessary overhead to convert everything a JS object first, is there
a technical reason why ClojureScript behaves differently here? Or has
this just not been implemented yet?
Thanks
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Re: Serializing ClojureScript data structures
Related: str is a terrible way to serialize things in JVM-clojure as
well - pr-str is what you want. For example, {:x a} and {:x 'a} both
print the same with str. pr-str also handles lazy sequences, which str
doesn't.
On Mar 2, 8:19 am, David Nolen dnolen.li...@gmail.com wrote:
pr-str will do what you want. That said we should probably add toString
methods to the core datatypes to prevent this surprise.
David
On Fri, Mar 2, 2012 at 11:14 AM, Chris McBride cmm7...@gmail.com wrote:
In Clojure (str {:a 1}) returns {:a 1}.
In ClojureScript (str {:a 1}) returns [Object object].
As a result, in order to send data to and from the server I've been
doing this: (goog.json/serialize (cljs-js x)). This seems like
unnecessary overhead to convert everything a JS object first, is there
a technical reason why ClojureScript behaves differently here? Or has
this just not been implemented yet?
Thanks
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Re: defmulti and defmethods in separate namespaces without circular references?
I built a modeling system that uses the multi-method namespace separation you are talking about. The solution that I use simply leverages the difference between require, use, and refer. In each namespace that implements the multi-method, put (refer 'parent) after the ns form. In the parent namespace wait until the end of the file and place (require 'child1 'child2 ...). Good luck, ~Gary -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Looking to help out with an open source project...
I might have something for you. It's a small personal (and currently unpublished) project involving Emacs, Clojure and ClojureScript. It isn't very useful if you don't use Emacs :-) Drop me an Email if you're interested. On Thu, Mar 1, 2012 at 04:46, Sam Garrett samdgarr...@gmail.com wrote: Hello google Clojure group. I'm fairly new to clojure but what I've used and implemented so far has been quite interesting. So I was wondering if anyone knew of/or has some open source projects written in Clojure that I could get involved in and help out, preferably something small as this will be my first involvement in open source. My day job is mostly using jquery and javascript for UI work so that's where my expertise lies but anyway I'm looking to improve and help out. Thanks for reading and I look forward to helping out! -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- Moritz Ulrich -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: inconsistency in (keyword…) constructor
Just found your CLJ-891 and added a comment there that keyword has similar issues with a link to this thread. See that you tried to solve it in java… while I tried to stay up in clj … but any protocol-based solution seems to be up in the air still (?). Hopefully both interfaces can be enhanced in silmilar ways. -FrankS. On Mar 2, 2012, at 9:32 AM, joegallo wrote: PS. same issue with (symbol name) and (symbol ns name)… Huh, somehow I noticed this issue with symbol, but didn't see it with keyword. I guess I've need the two arg version of symbol, but never needed the two arg version of keyword. See some related discussion here: https://groups.google.com/d/topic/clojure/n25aZ5HA7hc/discussion -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: ClojureScript: browser REPL omitting namespace in generated JS
Done! http://dev.clojure.org/jira/browse/CLJS-157 On 3 March 2012 01:15, David Nolen dnolen.li...@gmail.com wrote: Please open a ticket in JIRA. Thanks! On Fri, Mar 2, 2012 at 4:50 AM, Stuart Campbell stu...@harto.org wrote: Hello, I'm encountering a problem where the browser REPL sometimes omits the ClojureScript namespace in its generated JavaScript, e.g. (def x 42) compiles to .x = 42 instead of foo.x = 42. I've put together a minimal project, with steps to reproduce, on GitHub: https://github.com/harto/cljs-eval-test It looks to me like compiling a set of ClojureScript files (using cljs.closure/build) causes some side-effect that prevents the problem. See the GitHub README for details. I'm on Mac OS X 10.5 with Java 1.6.0_26. Regards, Stuart -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Clojure STM vs Java Locks dissertation help data structure database connection
Hi! I am a student at Swansea University (UK), trying to present a Project about Clojure STM performance and Java Locks performance during the simulation of concurrent Banking transactions: I intend to execute a concurrent transfer of (fixed amount of) money from an account A to an account B in a dosync with a concurrent transfer from account B to account A and repeat this conflict a N- input number times. Like this: (transfer account-a account-b 100) (transfer account-b account-a 100) Now, I don't think I am doing it right because i am not taking full advantage of the STM, while I should perform on large sets of shared objects to make the difference between STM and Locks. FINALLY: What I would like to do is: 1) connect to a database with the Accounts, and create an associated data that works with STM. 2) Create N-random operations Like (account id-source, account-id- destination, money) 3) Start counting time - perform the operations under STM - stop counting time. 4) update the database and show statistics. QUESTION: which kind of clojure data should I use in the point 1) to make advantage of STM transactions? which database best suit the fact that I will use the same data to perform operations in Clojure and in Java (one at a time) ? I know mySQL at least :P I really need some advice, I also would like to ear your opinion on the other points (2,3,4). Many thanks in advance!! Riccardo -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
How I can use InteractionEvent in clojure?
How I can translate this InteractionEvent written for a java example to
clojure?
void myCallback() {
vtkTransform t = new vtkTransform();
boxWidget.GetTransform(t);
boxWidget.GetProp3D().SetUserTransform(t);}
boxWidget.AddObserver(InteractionEvent, this, myCallback);
http://www.cmake.org/Wiki/VTK/Examples/Java/Miscellaneous/Cone6
http://www.vtk.org/doc/nightly/html/classvtkBoxWidget.html
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Re: Bret Victor - Inventing on Principle
The talk was really enligthing... but I would say it is still research. While I can trust you can make, say an intuitive and reactive UI for flash like animations, I think there are still problems to take care of for the program example. Here this is just a simple algorithm without long calls inside, without access to external systems or mutable state. All kind of things that would simply fail to work properly in pratice. I can see this as an evolution of unit testing and debugging. You still need to mock dependancies and take care to build input data to test your program. But in exchange you can check interractively execution outcome and intermediate steps and tweak it until it provide the required result. You could then ask to generate the proper unit test because well all information is already available. But making this kind of UI fluid and easy including a way to properly specify your mocks (and what is not mocked) is going to be complex... But I agree, functional languages that tend to favor pure functions really help there. On 27 fév, 19:44, Colin Yates colin.ya...@gmail.com wrote: Amazing. The lesson for me (which has echoes of the 'hammock driven design' message) is that sometimes the best ideas come not from evolutions of existing answers but starting completely from scratch. As techies, we sometimes (I think) restrict ourselves to improving our existing solutions which in effect restrict our solution space to our own (sometimes inferior) answers. For example, I doubt any of his answers came as an improvement to existing IDEs - they are new creations. Hmm - not sure I made that clear - I learnt a lesson anyway. Excellent points and I certainly found the video inspiring. Good link! Col On Friday, 24 February 2012 18:29:06 UTC, Damien wrote: Hi Everyone, You may have seen this already, if not I believe it's worth investing 1h of your life: http://vimeo.com/36579366 That's already a good candidate for the technical talk of the year, if not the decade IMO. Ok, I'm getting a bit too enthusiastic here but this is so inspiring. After watching it, you can't help thinking that we have a whole new world to invent. As a side note, you may start thinking that a REPL is not good enough. - Personal message to Laurent Petit: please watch and start thinking about CCW 1.0 ;o) - It also feels like ClojureScript is on the right path. But, most importantly, beyond any technical consideration, the last part is a great life lesson. -- Damien Lepage http://damienlepage.com @damienlepage https://twitter.com/#%21/damienlepage linkedin.com/in/damienlepage http://www.linkedin.com/in/damienlepage -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: ClojureScript: browser REPL omitting namespace in generated JS
Thanks Stuart, Looks like the problem might be here: https://github.com/clojure/clojurescript/blob/master/src/clj/cljs/repl.clj#L117 I'll dig into this this weekend. On Mar 2, 6:30 pm, Stuart Campbell stu...@harto.org wrote: Done!http://dev.clojure.org/jira/browse/CLJS-157 On 3 March 2012 01:15, David Nolen dnolen.li...@gmail.com wrote: Please open a ticket in JIRA. Thanks! On Fri, Mar 2, 2012 at 4:50 AM, Stuart Campbell stu...@harto.org wrote: Hello, I'm encountering a problem where the browser REPL sometimes omits the ClojureScript namespace in its generated JavaScript, e.g. (def x 42) compiles to .x = 42 instead of foo.x = 42. I've put together a minimal project, with steps to reproduce, on GitHub: https://github.com/harto/cljs-eval-test It looks to me like compiling a set of ClojureScript files (using cljs.closure/build) causes some side-effect that prevents the problem. See the GitHub README for details. I'm on Mac OS X 10.5 with Java 1.6.0_26. Regards, Stuart -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Pretty print defn
Hi. Is it possible to pretty print a source code of the function defined with defn? I have tried the following: (defn qw [] (inc 2)) (with-pprint-dispatch code-dispatch (pprint qw)) And got #user$qw user$qw@4743bf3d. But I would like to get at least (inc 2). Is it possible at all? Nikem -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: defmulti and defmethods in separate namespaces without circular references?
On Friday, March 2, 2012 7:03:10 AM UTC-6, tim.visher wrote: I will not in any way claim to know how or why this works. I'm just starting to use multimethods myself, but I'll give you my set up that appears to be working at the moment. I have a namespace: (ns store.store) (defmulti serialize method) (defmulti slurp method) in store.clj I have 1 implementation: (ns store.file-system [:use [store.store]] …) (def base ) (defmethod serialize :file-system [_ file-name contents] (fs-utils/write-to contents (str base / file-name))) (defmethod slurp :file-system [_ file-name] (clojure.core/slurp (str base / file-name))) I then use this from another namespace, requiring store.store and store.store.file-system: (ns library [:require [wallpaper-manager-core.store.file-system :as store-file-system]] [:require [wallpaper-manager-core.store.store :as store]]) (binding [store-file-system/base (fs/home)] (def library (ref (read-library) :validator library-validator))) (defn serialize-library [library] (store/serialize :file-system library.clj library)) And this all seems to work fine for me. Maybe someone else can explain why it does for me and doesn't for you. Maybe it has something to do with `use` vs. `require`? This does indeed work for me. What I was trying to do was avoid was having to do this part: ... [:require [wallpaper-manager-core.store.store :as store]]) As each time I add a defmethod implementation of my defmulti I'd have to add another require. But maybe that isn't such a bad thing so I'll go with this approach. I prefer it over having a super parent (*) namespace unless i needed that super parent in multiple places. * by super parent I mean a namespace that is only used to include the namespaces that contain the defmulti and defmethods Thanks, Cymen -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Pretty print defn
(clojure.repl/source-fn 'qw) will give you the source. On Fri, Mar 2, 2012 at 10:32 AM, Nikem gni...@gmail.com wrote: Hi. Is it possible to pretty print a source code of the function defined with defn? I have tried the following: (defn qw [] (inc 2)) (with-pprint-dispatch code-dispatch (pprint qw)) And got #user$qw user$qw@4743bf3d. But I would like to get at least (inc 2). Is it possible at all? Nikem -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: defmulti and defmethods in separate namespaces without circular references?
I use a lot of multimethods with my framework, Ciste[0] and it can work, the only thing is you have to be very careful about what you put where, and it helps to have a lot of namespaces. What I do is try to keep all of my defmulti's in one namespace and have only defmethod's in another namespace. Originally, I had one master namespace that required all of the defmethod namespaces (my routes namespace) and then all my action namespaces only require the defmulti namespaces. I've since then moved on to use the 'definitializer' functionality of Ciste to require those defmethod namespaces after all of the other namespaces have been required. I'm not saying it's the best coding style, but it works for me and my applications. Be prepared to move functions around a lot to always stay one step ahead of the dreaded cyclic dependency horror. 0: https://github.com/duck1123/ciste On 03/02/2012 10:55 AM, Cymen Vig wrote: On Friday, March 2, 2012 7:03:10 AM UTC-6, tim.visher wrote: I will not in any way claim to know how or why this works. I'm just starting to use multimethods myself, but I'll give you my set up that appears to be working at the moment. I have a namespace: (ns store.store) (defmulti serialize method) (defmulti slurp method) in store.clj I have 1 implementation: (ns store.file-system [:use [store.store]] …) (def base ) (defmethod serialize :file-system [_ file-name contents] (fs-utils/write-to contents (str base / file-name))) (defmethod slurp :file-system [_ file-name] (clojure.core/slurp (str base / file-name))) I then use this from another namespace, requiring store.store and store.store.file-system: (ns library [:require [wallpaper-manager-core.store.file-system :as store-file-system]] [:require [wallpaper-manager-core.store.store :as store]]) (binding [store-file-system/base (fs/home)] (def library (ref (read-library) :validator library-validator))) (defn serialize-library [library] (store/serialize :file-system library.clj library)) And this all seems to work fine for me. Maybe someone else can explain why it does for me and doesn't for you. Maybe it has something to do with `use` vs. `require`? This does indeed work for me. What I was trying to do was avoid was having to do this part: ... [:require [wallpaper-manager-core.store.store :as store]]) As each time I add a defmethod implementation of my defmulti I'd have to add another require. But maybe that isn't such a bad thing so I'll go with this approach. I prefer it over having a super parent (*) namespace unless i needed that super parent in multiple places. * by super parent I mean a namespace that is only used to include the namespaces that contain the defmulti and defmethods Thanks, Cymen -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Pretty print defn
Mark Rathwell mark.rathw...@gmail.com writes: (clojure.repl/source-fn 'qw) will give you the source. You can also use serializable-fn to create a function that will carry its source around with it in metadata: https://github.com/technomancy/serializable-fn But it's not very well tested. -Phil -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
lein run and standard input (*in*) with read-line
Hi All, I've been working on my first little clojure project for the past couple of days, but have now run into a problem with leiningen and was hoping someone could point me in the right direction to find a solution. I'm using lein 1.7.0, clojure 1.3.0 and openJDK 6 on a ubuntu based system. My code has a simple loop iin the -main funciton which calls read-line to get the input. If I run lein repl, execute (-main), I can enter data If I create an uberjar, and run it, I can enter data However, if I use lein run, I cannot eneter any data. It appears the program enters the while loop, but when I try to enter data, nothing happens - no characters are echoed to the screen (as is the case in the other two invokations) and it appears that the program is waiting for input from some other input source. My guess is that lein run does something different wrt *in*, but I've no idea what and cannot find anything obvious in the docs. My project file is very simple - (defproject clj-espeak 1.0.0-SNAPSHOT :description FIXME: write description :dependencies [[org.clojure/clojure 1.3.0]] :java-source-path java :ant [clj-espeak.core] :main clj-espeak.core) The java-source-path is necessary for some java interface classes for a JNI based interface to a C based text to speech library. This seems to be working fine. My -main funciton is very simple (defn -main [ args] (println Starting interpreter) (tts-initialize) (println Starting command loop.) (flush) (while true (dispatch (parse-input (read-line) As mentioned, this is my first clojure program. I'm also not a java programmer (though I did do some java back in the late 90's using java 1.0). I'm hoping it is just something obvious I've missed and would appreciate any suggestions. Background The reason I want to use lein run is that I want to execute the program via a shell script which is called by emacs. Emacs then communicates with this sub-process via standard input. The data it sends are commands to generate various bits of speech from text. Eventually, the aim is to have emacs start the clojure applicaiton, which will setup swank and also listen for input from emacs. I will then use slime to connect to the running process so that I can futher develop/refine the clojure code based on the input recieved from emacs. This is all part of developing a clojure based speech server for the emacspeak program. TIA Tim -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
clj-time mailing list!
By popular request: http://groups.google.com/group/clj-time -- Sean A Corfield -- (904) 302-SEAN An Architect's View -- http://corfield.org/ World Singles, LLC. -- http://worldsingles.com/ Perfection is the enemy of the good. -- Gustave Flaubert, French realist novelist (1821-1880) -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
