Oh, I see. This is because of the reader that interprets symbols from the quoted forms in different way it does for the unquoted ones (and this feature still strikes me as odd). To make matters more complicated the quoted symbols seems to have some meanings as functions for the clojure, since ('foo 1) -> nil, ('foo 1 2) -> 2, ('foo 1 2 3 4) -> arity exception.
четверг, 7 июня 2012 г., 20:05:43 UTC+4 пользователь Bronsa написал: > > you' are calling (apply 'foo '(1 2)), what you want is (apply foo '(1 2)) > just call bar as > (bar (list foo 1 2)) > > 2012/6/7 Alex Shabanov <avshaba...@gmail.com> > >> I'm curious why the following form evaluates to 2: >> >> (defn foo [& more] >> (println "foo(" more " )")) >> >> (defn bar [v] >> (apply (first v) (rest v))) >> >> (bar '(foo 1 2)) >> >> If the form (bar '(foo 1 2)) extended to, say, (bar '(foo 1 2 3 4)) the >> arity exception will be thrown. >> The behavior can be reproduced after picking another names for foo and/or >> bar functions. >> >> -- >> 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