That works perfectly, thanks! It does feel like it should just work as a normal case statement though, where the value is static final, and warn if it isn't. Is there a good reason this shouldn't be supported by the case statement that anyone can think of? Worth filing an enhancement request on clojure core?
Thanks, Adam Adam On Fri, Feb 28, 2014 at 4:21 PM, Ambrose Bonnaire-Sergeant < abonnaireserge...@gmail.com> wrote: > I'm not 100% sure if this works, but have you tried writing a macro that > gets the > Java field value, and inserting into the case statement? > > (defmacro motion-case [...] > `(case .. > ~MotionEvent/ACTION_POINTER_DOWN ... > ~ MotionEvent/ACTION_UP ... > )) > > > On Sat, Mar 1, 2014 at 12:15 AM, Adam Clements <adam.cleme...@gmail.com>wrote: > >> I'm having some trouble with java constants in a case statement. I know I >> could use condp, but these are things I could put in a java switch >> statement and so it's annoying to give up constant time dispatch: >> >> (case (.getActionMasked event) >> MotionEvent/ACTION_POINTER_DOWN :down >> MotionEvent/ACTION_UP :up >> MotionEvent/ACTION_POINTER_UP :up >> MotionEvent/ACTION_MOVE :move >> MotionEvent/ACTION_CANCEL :cancel >> MotionEvent/ACTION_OUTSIDE :outside >> :none)) >> >> Always gives me :none because java constants aren't literals, it >> dispatches on the symbol instead. Is there a way to do this without >> resorting to condp = or am I stuck? Should this be a something that case >> handles by default? I can't think of a reason these couldn't be converted >> to literals... >> >> Thanks, >> >> Adam >> >> -- >> 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. > -- 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.
