Strange behaviour of keywords within macros in Clojure

Posted by mikera on Stack Overflow See other posts from Stack Overflow or by mikera
Published on 2010-05-19T19:19:43Z Indexed on 2010/05/19 19:20 UTC
Read the original article Hit count: 242

Filed under:
|
|
|

I'm a little confused by how keyword accesses seem to behave in Clojure when they are evaluated at macro expansion time.

The following works as I expect:

(def m {:a 1})
(:a m)
=> 1 

However the same keyword access doesn't seem to work within a macro:

(def m {:a 1})
(defmacro get-a [x] (:a x))
(get-a m)
=> nil

Any idea what is going on here?

© Stack Overflow or respective owner

Related posts about clojure

Related posts about macro