> Welcome to a world of values, not containers (the blue pieces can only
fit in the blue
> container, the red ones you get the picture) or as Rich says places.
I always thought that by places he means mutable identifiers; languages
like Haskell have a lot of luck with type-checking immut
You are not defining a type here. A type hint is just that... a hint so the
compiler
can optimize the code it generates to call the readLine method on this specific
object class.
As an example, if io/reader returned an object of a different class at runtime
than BufferedReader, it would not fail
*I would love it if it would be* at least a warning if not even better *an
error*, but I feel it wouldn't be idiomatic clojure to err, but to warn
would maybe be accepted...
On Tue, Feb 5, 2013 at 6:34 PM, Kanwei Li wrote:
> That's funny, I did exactly the same thing and wrote BufferedReader fo
That's funny, I did exactly the same thing and wrote BufferedReader for
both. DOH!
Although I have no idea how the internals of type hinting is, I do think
it's peculiar that there doesn't seem to be type error checking, even
though we are explicitly "defining" the type. I would feel like it sh
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
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 eliminat
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
works for me:
=> (*let [^java.io.BufferedReader a
(clojure.java.io/reader"c:\\windows\\setupact.log")] (println (. a
readLine)))
*
AudMig: No audio endpoint migration settings found 0x2
nil
=> *(let [a (clojure.java.io/reader "c:\\windows\\setupact.log")] (println
(. a readLine)))*
Reflection warn
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 wrot
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
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.
>
> Accordi
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*
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