Reflection warning on try/catch inside go block

I get a reflection warning "reference to field printstacktrace can't be resolved" from the following code: (defn foo [] (go-loop [] (http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups "Clojure" group. To unsubscrib

Reflection warning on try/catch inside go block

Which version of core.async? -- 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 th

Re: Locking non-local variable inside macro

Usually it's better to create a sentinel (Object.) to lock on to avoid sharing it. (Well really it's best to avoid locking at all and use Clojure state constructs if you can.) -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, se

Re: Reflection warning on try/catch inside go block

[org.clojure/clojure "1.7.0"] [org.clojure/core.async "0.2.374"] On Monday, November 16, 2015 at 8:28:27 PM UTC+9, Alex Miller wrote: > > Which version of core.async? -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email t

Re: Reflection warning on try/catch inside go block

The method is called .printStackTrace: http://docs.oracle.com/javase/7/docs/api/java/lang/Throwable.html#printStackTrace() I can't speak to why the reflection warning disappears in some cases. Seems fishy, ​ -- You received this message because you are subscribed to the Google Groups "Clojure" g

Re: Reflection warning on try/catch inside go block

Sorry, I was having some copy & paste mistake, but I'm seeing the same warning with .printStackTrace. On Monday, November 16, 2015 at 9:25:06 PM UTC+9, Herwig Hochleitner wrote: > > The method is called .printStackTrace: > http://docs.oracle.com/javase/7/docs/api/java/lang/Throwable.html#printSt

Re: Reflection warning on try/catch inside go block

It's possibly a tools.analyzer issue, I'll take a look ASAP > On 16 Nov 2015, at 12:41, Alice wrote: > > Sorry, I was having some copy & paste mistake, but I'm seeing the same > warning with .printStackTrace. > > On Monday, November 16, 2015 at 9:25:06 PM UTC+9, Herwig Hochleitner wrote: > The

[ANN] Clojure 1.8.0-RC2

Clojure 1.8.0-RC2 is now available. *This build is a "release candidate"!* We would appreciate any and all testing you can do on your own libraries or internal projects to find problems. Try it via - Download: https://repo1.maven.org/maven2/org/clojure/clojure/1.8.0-RC2 - Leiningen: [org

Re: Largest Clojure codebases?

At the last company I was with I used sloccount [1] to analyze the codebase. I concatenated all the clj files to a .lisp file so sloccount could analyze it. I was curious about the cost estimate that sloccount performs to see how the team measured up (size varied from 2 to 7 over 5 years). When

[ANN] konserve 0.3.0

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Hello, I am happy to announce the release of version 0.3.0 of konserve, a clojuresque durable key-value/document store protocol with core.async. Most importantly serialization protocols are now factored as a protocol with implementations for Fressian

Re: Largest Clojure codebases?

For what it's worth, here's the way that I always count lines of code, should work on any unix-like system: find -name "*.clj" | wc -l On Sunday, November 15, 2015 at 5:23:01 PM UTC-6, Colin Yates wrote: > > Exactly this. I couldn’t find a reliable way of counting LOC but my > (Clojure/ClojureS

New Functional Programming Job Opportunities

Here are some functional programming job opportunities that were posted recently: Software Developer | Scala, Clojure | Spark, Solr, Agile at Elmar Reizen https://functionaljobs.com/jobs/8865-software-developer--scala-clojure--spark-solr-agile-at-elmar-reizen Cheers, Sean Murphy Functiona

arity-3 `iterate`

I *frequently* see: (nth (iterate foo bar) n) And: (->> (iterate foo bar) (drop n) first) I've also coded this in `avi` after being surprised no such thing exists: (defn n-times [thing n a-fn] (reduce (fn [thing n] (a-fn thing)) thing (range n))) (which is kind of

Re: arity-3 `iterate`

If you rearrange the arguments of your proposed three-argument iterate: (defn iterate ... ([f n x] (if (zero? n) x (recur f (f x) (dec n it supports partial application of the multiply-composed function to different arguments more easily, which suggests redefinition as: (def

ClassNotFoundException: clojure.lang.AFunction on OS X

We have been happily using clojure on windows and linux, today we tried to run on a MacBook Pro and ran into several issues. The current stopper is a CNFE as per the title (stack trace at the end). I have now replicated this on my personal Mac and seen the same behaviour. I can't find anything

Re: arity-3 `iterate`

ncomp would be faster if it's implemented a la exponentiation by squaring. On Mon, Nov 16, 2015 at 12:55 PM, Ben Wolfson wrote: > If you rearrange the arguments of your proposed three-argument iterate: > > (defn iterate > ... > ([f n x] >(if (zero? n) > x > (recur f (f x) (dec

[ANN] Simulant 0.1.8

Simulant 0.1.8 is now available. This is a maintenance release that incorporates some bug fixes and updates Clojure and Datomic dependencies Try it via - Leiningen: [com.datomic/simulant "0.1.8"] Changes since 0.1.7: - PR 24 Allow overriding

Re: ClassNotFoundException: clojure.lang.AFunction on OS X

I have no idea what this could be. Is there any chance you could build up a minimal-ish project that reproduces this ? I have been using Clojure on a Mac for years without any problem. Also, at much less effort on your part, could you post the Leiningen and JVM versions ? lein version should print

Poor parallelization performance across 18 cores (but not 4)

I have functions f1 and f2 below, and let's say they run in T1 and T2 amount of time when running a single instance/thread. The issue I'm facing is that parallelizing f2 across 18 cores takes anywhere from 2-5X T2, and for more complex funcs takes absurdly long. 1. (defn f1 [] 2. (app

Re: Poor parallelization performance across 18 cores (but not 4)

There is no STM involved if you only have atoms, and no refs, so it can't be STM-related. I have a conjecture, but don't yet have a suggestion for an experiment that would prove or disprove it. The JVM memory model requires that changes to values that should be visible to all threads, like swap!

[ANN] pex, a powerful PEG parsing library

Here is a compliant JSON parser in 99 LOC, implemented with *pex, a new parsing library*. [1] This is alpha software. Hot off the heels of Colin Fleming's Conj talk on PEGs [2], I'm making public an early version of pex [3], a parsing library in the PEG family. For those of you familiar with