Thanks Rich,
> What's correct is what is documented here: http://clojure.org/java_interop
RTFM is still very relevant :)
Boris
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On Apr 27, 4:26 pm, Boris Mizhen wrote:
> Hello all,
> It seems to me that areduce can not be used with an anonymous array.
> Consider:
>
> (areduce (.. System getProperties values toArray) i r 0
> (some_expression))
>
> It seems to me that there is no way to get i'th element of the array
> in
On Apr 27, 10:04 pm, Boris Mizhen wrote:
> Thanks to all who replied.
>
> To summarize what I learned - Clojure has a special form (. ) to
> *call* java functions, but does not have concept of a *value*
> corresponding to a java function.
> This makes Java functions a second class citizen :)
>
Thanks to all who replied.
To summarize what I learned - Clojure has a special form (. ) to
*call* java functions, but does not have concept of a *value*
corresponding to a java function.
This makes Java functions a second class citizen :)
In addition special forms are expanded in the first pos
> How can I pass a static java function to another function?
There is also memfn:
(memfn name & args)
Macro
Expands into code that creates a fn that expects to be passed an
object and any args and calls the named instance method on the object
passing the args. Use when you want to treat a Java me
On Apr 27, 5:51 pm, Boris Mizhen wrote:
> I wonder if someone could explain or point me to the explanation about
> *why* a Java static fn can't be passed just like a closure fn?
The only reason I can give you is that Java methods aren't first-class
objects, like Clojure fns.
The (.method object
no, the syntax is not the same.
user=> (macroexpand-1 '(.foo bar))
(. bar foo)
On Mon, Apr 27, 2009 at 2:51 PM, Boris Mizhen wrote:
>
> Hi Meikel, thanks for the answer.
>
> I wonder if someone could explain or point me to the explanation about
> *why* a Java static fn can't be passed just li
Hi Meikel, thanks for the answer.
I wonder if someone could explain or point me to the explanation about
*why* a Java static fn can't be passed just like a closure fn?
After all the syntax to call them is the same :)
Thanks,
Boris
On Apr 27, 5:34 pm, Meikel Brandmeyer wrote:
> Hi,
>
> Am 27.
Hi,
Am 27.04.2009 um 23:17 schrieb Boris Mizhen:
((comp #(Math/abs %) +) -3 -4) => 7
How can I pass a static java function to another function?
Here you already gave the answer to your question. Wrap it in
a Clojure fn/#().
A member function must be trickier because this must be supplied,
I suspect I will be asking more questions, so in order not to start
another thread I will post below :)
Why
((comp - +) -3 -4) => 7
but
((comp Math/abs +) -3 -4) => Error?
java.lang.Exception: No such namespace: Math (NO_SOURCE_FILE:1)
[Thrown class clojure.lang.Compiler$CompilerException]
a
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