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! > > > -- > -- > 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 this group, send email to > clojure+unsubscr...@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/clojure?hl=en > --- > You received this message because you are subscribed to the Google Groups > "Clojure" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to clojure+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/groups/opt_out. > > -- -- 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 this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups "Clojure" group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
