in other words:
this:
(let [in (clojure.java.io/reader src)
out (clojure.java.io/writer dest)
becomes this:
(let [^java.io.BufferedReader in (clojure.java.io/reader src)
^java.io.BufferedWriter out (clojure.java.io/writer dest)
and it works for me too. (but I wasted some time by having BufferedReader
in both places)
On Mon, Feb 4, 2013 at 6:26 PM, Andy Fingerhut <andy.finger...@gmail.com>wrote:
> I don't have CCW Eclipse installed to test, but by saving that file on my
> Mac (should also work on Linux) in a subdirectory "obj", and editing it to
> add the ^java.io.BufferedReader in and ^java.io.BufferedWriter out type
> hints as suggested by Luc P. earlier in this thread, I was able to
> eliminate the reflection warnings:
>
> % mkdir obj
> % cp <gist_file> obj/solutions.clj
>
> # Original file without the type hints gives reflection warnings as
> expected
>
> % java -Dclojure.compile.path=./obj -cp clojure-1.4.0.jar:./obj
> clojure.lang.Compile solution
> Compiling solution to ./obj
> Reflection warning, solution.clj:38 - reference to field readLine can't be
> resolved.
> Reflection warning, solution.clj:45 - reference to field readLine can't be
> resolved.
> Reflection warning, solution.clj:63 - reference to field newLine can't be
> resolved.
> Reflection warning, solution.clj:54 - reference to field newLine can't be
> resolved.
>
> # Now I hand-edit obj/solutions.clj to add the type hints, and recompile.
> No reflection warnings.
> % java -Dclojure.compile.path=./obj -cp clojure-1.4.0.jar:./obj
> clojure.lang.Compile solution
> Compiling solution to ./obj
> %
>
> Perhaps you should try verifying that you added the type hints correctly,
> saved the source file, recompiled the one you wanted to in CCW Eclipse, etc.
>
> Andy
>
>
> On Feb 4, 2013, at 9:10 AM, Kanwei Li wrote:
>
> Hey Andy,
>
> Thanks for offering to help. Here's a gist:
> https://gist.github.com/4696105
>
> As you can see at the bottom, I want the main method to read/write to
> STDIN/STDOUT, but for testing, I want to read from files instead.
>
> This is what I get in both CCW Eclipse and nrepl:
>
> Reflection warning, NO_SOURCE_PATH:4 - reference to field readLine can't
> be resolved.
>
> Reflection warning, NO_SOURCE_PATH:11 - reference to field readLine can't
> be resolved.
>
> Reflection warning, NO_SOURCE_PATH:29 - reference to field newLine can't
> be resolved.
>
> Reflection warning, NO_SOURCE_PATH:20 - reference to field newLine can't
> be resolved.
> Thanks!
>
> On Sunday, February 3, 2013 4:38:38 PM UTC-5, Andy Fingerhut wrote:
>>
>> Can you post a larger chunk of code for us to examine, perhaps on github
>> or as a gist if it is over 30 lines of code or so? Many of us have had
>> good success with eliminating reflection using type hints, so it should be
>> possible to make it work.
>>
>> Andy
>>
>> On Feb 3, 2013, at 12:50 PM, Kanwei Li wrote:
>>
>> Unfortunately it doesn't work.
>>
>> Reflection warning, NO_SOURCE_PATH:20 - call to write can't be resolved.
>>
>> Reflection warning, NO_SOURCE_PATH:21 - reference to field newLine can't
>> be resolved.
>>
>> On Sunday, February 3, 2013 2:35:23 PM UTC-5, Luc wrote:
>>>
>>> Why not add type hints like this ?
>>>
>>> (let [^java.io.BufferedReader in ....
>>> ^java.io.BufferedWriter out ...]
>>> ..
>>>
>>> Luc P.
>>>
>>> > Hey guys,
>>> >
>>> > I'm trying to read a lot of data, sometimes from *in* and sometimes
>>> from a
>>> > file. I extensively use the native .write and .read java methods.
>>> >
>>> > According to the clojure doc for reader, it says that "Default
>>> > implementations always return a BufferedReader". However, when I
>>> write,
>>> >
>>> > (*defn* solve [src dest]
>>> >
>>> > (*let* [in (clojure.java.io/reader src)
>>> >
>>> > out (clojure.java.io/writer dest)
>>> >
>>> > I get a bunch of reflection warnings on .read and .write, and most of
>>> the
>>> > running time is spent on reflection. AFAIK you can't type hint a (let)
>>> > construct, so what should I do here?
>>> >
>>> > Thanks!
>>
>>
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even if you think I'll subconsciously hate it.
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