I have a problem with `def` in macros. I'd like to create a bunch of following definitions:
(def foo "FOO") (def bar "BAR") (def baz "BAZ") So I wrote a macro: user=> (defmacro def-stuff [v] `(def (symbol ~v) (clojure.string/upper-case ~v))) #'user/def-stuff And I'd like to do map this macro over a vector of strings: user=> (map (fn [n] (def-stuff n)) ["foo" "bar" "baz"]) Syntax error compiling def at (REPL:1:14). First argument to def must be a Symbol A little check indicates that everything should be fine: user=> (symbol? (symbol "foo")) true but it is not: user=> (def (symbol "foo") "FOO") Syntax error compiling def at (REPL:1:1). First argument to def must be a Symbol ??? Interestingly enough: user=> (defmacro def-stuff [v] `(def v (clojure.string/upper-case ~v))) #'user/def-stuff user=> (map (fn [n] (def-stuff n)) ["foo" "bar" "baz"]) (#'user/v #'user/v #'user/v) Strangely enough a `v` gets (re)defined. To me it looks like the lexical-binding of macro-parameters is ignored if there's a `(def <macro-param> ...)` inside this macro. Can anybody explain what's going on here please? Thanks. -- 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. To view this discussion on the web visit https://groups.google.com/d/msgid/clojure/CAEtmmex6Kn%3DQ8AZ-AyYoZLpYVu7%2BWnX3u7vQBgydiA%2B1jUt9Rw%40mail.gmail.com.
