Very nice find! Thank you for that! I'm thinking maybe it has something to do with lazy or delayed evaluation. I don't really understand most clojure things but I imagine if the call to mapv would not be evaluated right when the def is read but instead only when the mappings-8x8 is first being used (sort of like a `delay` or lazy init) then it would make some sense why ^:const would fail however this theory doesn't seem to hold when using something like (def ^:const mappings-8x8 ((fn [] [[0 0] [1 0]])) because it would have to act like the call to mapv does, unless there's something extra introduced by mapv but the returned class seems to be the same that PersistenVector - anyway I'm just guessing around, doesn't help :)
On Mon, Jan 21, 2013 at 6:17 PM, Jim - FooBar(); <jimpil1...@gmail.com>wrote: > On 21/01/13 17:07, Jim - FooBar(); wrote: > >> On 21/01/13 16:47, AtKaaZ wrote: >> >>> Could you retry using this >>> -XX:-UseCompressedOops >>> >> >> >> surprisingly this worked! I don't get that error anymore... I used to >> have it but i thought it was completely unnecessary...I don't understand >> how this affects the runtime of my program! >> > About that, I find these a useful read: http://javarevisited.blogspot.hu/2011/11/hotspot-jvm-options-java-examples.html http://javarevisited.blogspot.hu/2012/06/what-is-xxusecompressedoops-in-64-bit.html > >> Jim >> > > also I Just tried eval-ing the call to mapv and it compiles and runs just > fine!!!! I'm totally baffled... > > So to sum up: > > this fails: > > > (def ^:const mappings-8x8 > (mapv #(apply vector-of :int %) [[0 0] [1 0] [2 0]])) > > this succeeds: > > (def ^:const mappings-8x8 > (eval (mapv #(apply vector-of :int %) [[0 0] [1 0] [2 0]]))) > > > this is beyond me! > > > Jim > > > > > -- > 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+unsubscribe@**googlegroups.com<clojure%2bunsubscr...@googlegroups.com> > For more options, visit this group at > http://groups.google.com/**group/clojure?hl=en<http://groups.google.com/group/clojure?hl=en> > -- I may be wrong or incomplete. Please express any corrections / additions, they are encouraged and appreciated. At least one entity is bound to be transformed if you do ;) -- 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
