I suspect your repl was stale, since this doesn't work at all. By an amusing coincidence, though, it doesn't break, just returns the wrong answer:
user=> (defmacro infix [e] `(let [[x# f# y#] '~e] (f# x# y#))) #'user/infix user=> (infix (5 + 4)) 4 That is, the *symbol* +, not the function +, is called as a function. Symbols act like keywords in that they look themselves up in maps. The "map" 5 does not contain the symbol '+, so the not-found value of 4 is returned. On Sep 26, 10:22 am, ru <soro...@oogis.ru> wrote: > Thanks to all! > > With your help I have found the solution that coincide with Bronsa's > (my special respect to Bronsa): > > user=> (defmacro infix [e] `(let [[x# f# y#] '~e] (f# x# y#))) > #'user/infix > user=> (infix (5 + 4)) > 9 > > But, this solution seems to me awkward and showing that Clojure > compiler does not handling quite strictly language specification > requirements. I.e., this single quote compiler should substitute > itself to fulfill requirement of unevaluation arguments of macro. > > Sincerely, > Ru -- 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
