=> (def a (object-array 1)) #'user/a => (set! *warn-on-reflection* true) true => (aset a 0 nil) Reflection warning, NO_SOURCE_PATH:1:1 - call to aset can't be resolved. nil => (aset ^objects a 0 nil) nil
hth, Christophe On Tue, Jul 2, 2013 at 5:13 PM, Mikera <mike.r.anderson...@gmail.com> wrote: > I think that is the only way. > > The good news is that this is Clojure, so you can easily wrap it in an > "object-array-cast" macro.... > > > On Tuesday, 2 July 2013 15:41:02 UTC+1, Dmitry Groshev wrote: >> >> Hello all. >> >> I have a following deftype: >> >> (deftype NDArray >> [^objects data >> ^long ndims >> ^longs shape >> ^longs strides]) >> >> (https://github.com/si14/**matrix-api/blob/** >> 70b376f58ec3846df6622b971001c3**ade32d0725/src/main/clojure/** >> clojure/core/matrix/impl/**ndarray.clj#L30<https://github.com/si14/matrix-api/blob/70b376f58ec3846df6622b971001c3ade32d0725/src/main/clojure/clojure/core/matrix/impl/ndarray.clj#L30> >> ) >> >> Then, when I use "data" field in various contexts like aget/aset, Clojure >> warns me about reflection (and rightfully so). It's not a problem with >> primitive arrays because we can use (longs …) and similar functions to make >> cast explicitly, but there is no (objects …). With some googling I've found >> a following solution: >> >> (let [… >> #^"[Ljava.lang.Object;" data (.data m) >> …] >> (aset data idx v)))) >> >> (https://github.com/si14/**matrix-api/blob/** >> 70b376f58ec3846df6622b971001c3**ade32d0725/src/main/clojure/** >> clojure/core/matrix/impl/**ndarray.clj#L259<https://github.com/si14/matrix-api/blob/70b376f58ec3846df6622b971001c3ade32d0725/src/main/clojure/clojure/core/matrix/impl/ndarray.clj#L259> >> ) >> >> But it's really really ugly. Is there a way to make it better? >> >> -- > -- > 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. > > > -- On Clojure http://clj-me.cgrand.net/ Clojure Programming http://clojurebook.com Training, Consulting & Contracting http://lambdanext.eu/ -- -- 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.
