The message is produced in AFn.throwArity: https://github.com/clojure/clojure/blob/master/src/jvm/clojure/lang/AFn.java#L434
It looks like any name that contains a hyphen followed by a "special character" (w.r.t. allowable chars in Java classnames) will result in a munged (i.e. Compiler.munge()'ed) name containing a double-underscore sequence that is assumed by throwArity to be a system-generated suffix. This is perhaps another case where pushing var metadata (or some subset thereof) down to the function being defined in defns would be beneficial; AFunction could then override throwArity to just use the :name of the function being called, thus avoiding any confusion introduced by munged or un-munging names. None of the above is related to nREPL. - Chas On Oct 9, 2012, at 9:10 AM, Jay Fields wrote: > I noticed something similar, but I'm using 1.3. Maybe it's a bug in nrepl? > > On Tue, Oct 9, 2012 at 6:39 AM, Alex Nixon <a...@swiftkey.net> wrote: >> Hey all, >> >> I believe I've come across a minor bug in Clojure 1.4.0 (and I see the same >> behaviour in 1.5.0-alpha5): >> >> user=> (defn a->b []) >> #'user/a->b >> user=> (a->b 1) >> ArityException Wrong number of args (1) passed to: user$a >> clojure.lang.AFn.throwArity (AFn.java:437) >> >> Note that the reported function name in the stack trace is "user$a", where >> it should be "user$a->b" (or some mangled variant thereof?) >> >> Cheers, >> -- >> Alex Nixon >> >> Software Engineer | SwiftKey >> >> a...@swiftkey.net | http://www.swiftkey.net/ >> >> ++++++ >> WINNER - MOST INNOVATIVE MOBILE APP - GSMA GLOBAL MOBILE AWARDS 2012 >> >> Head office: 91-95 Southwark Bridge Road, London, SE1 0AX TouchType is a >> limited company registered in England and Wales, number 06671487. Registered >> office: 21 Lawn Terrace, Blackheath, London, SE3 9LL, United Kingdom. >> >> -- >> 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 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 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