And if anyone is curious, I've now got a Clojure program that works
pretty much exactly like this Java program, including using gen-class
to extend java.io.ByteArrayOutputStream with a new method, and access
two protected (non-static) fields of the superclass:
http://shootout.alioth.debian.
That was what I was missing. Thanks, Aaron.
Regarding using :gen-class in the ns macro, and also (gen-class) at
the top level, I am using the first because I know it works for AOT
compilation (important for the shootout web site to avoid measuring
compilation as part of the run time). If
On Fri, Jan 28, 2011 at 6:13 PM, Andy Fingerhut
wrote:
>> (ns andy.try
>> (:gen-class))
>>
>> (gen-class
>> :name andy.try.ReversibleByteArray
>> :prefix rba-)
I find it confusing that you have both of ":gen-class in the ns macro"
(I guess you're using this to get -main) and "(gen-class) at th
Haven't tried this, but some ideas/questions in my mind:
Is it not better to use the (:gen-class :name ... :prefix ...) inside (ns)
instead of having a separate (gen-class ...) outside (ns ...)? Maybe it
makes no difference? (dunno, but the documentation for ns suggests
otherwise)
Where y
Woops.
I meant to have both occurrences of (rba-reverse) in defn -main
replaced with just (reverse). I made that replacement, and still get
nearly the same error message:
Exception in thread "main" java.lang.IllegalArgumentException: No
matching method found: reverse for class andy.try.R
Thanks for the suggestion. I'm not sure I implemented it correctly.
Still no joy. Here is exactly what I tried:
% ls -R
andy
./andy:
try.clj
% cat andy/try.clj
(ns andy.try
(:gen-class))
(gen-class
:name andy.try.ReversibleByteArray
:prefix rba-)
(defn rba-reverse [this]
(println
On Fri, Jan 28, 2011 at 5:20 PM, Andy Fingerhut
wrote:
> --
> (ns try
> (:gen-class))
Try using a two-component (or more) namespace name. I think gen-class
in a one-component namespace will try to create the class in the
default
Sigh. Sorry, I'm not an experienced Java developer, and I'm sure
there are basic things relating Java packages, directories in
classpaths, and Clojure hierarchical namespaces that I just don't have
in my head yet. Right now I feel like I'm banging my head against a
wall and not getting an
