Re: Inflection on clojure.java.io/reader and writer
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 should error, instead of falling back on reflection. Kanwei On Monday, February 4, 2013 12:36:51 PM UTC-5, AtKaaZ wrote: > > 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 > > > 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 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. >>>> > >>>> &
Re: atl-clj: Atlanta, GA, USA Clojure meetup
Thanks for posting this. See you next week! On Monday, February 4, 2013 10:58:32 AM UTC-5, Marshall Bockrath-Vandegrift wrote: > > Hi all: > > As I myself missed when this group got started, I’d like to > delayed-announce the existence of atl-clj, a meetup group for Clojure > users in the Atlanta, GA area: > > http://www.meetup.com/Atl-Clj/ > > Current plan is to meet ~monthly on second Tuesdays. The next scheduled > meetup is for February 12th, where I’ll be giving a talk + live-coding > demo on Cascalog. > > If you’re in the Atlanta area, I hope you can make it! > > -Marshall > > -- -- 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.
Re: Inflection on clojure.java.io/reader and writer
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.
Re: Inflection on clojure.java.io/reader and writer
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 clo...@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+u...@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+u...@googlegroups.com . > > For more options, visit https://groups.google.com/groups/opt_out. > > > > > > > -- > Softaddicts> sent by ibisMail from > my ipad! > -- -- 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.
Inflection on clojure.java.io/reader and writer
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.
Documentation fix for refs
Could the documentation at http://clojure.org/refs be updated to reflect the latest laziness changes? fnseq has been removed and there's no mention anywhere of how to modify the code. Thank you! --~--~-~--~~~---~--~~ 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 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 -~--~~~~--~~--~--~---
