Clojure

• Type: Defect
• Status: Open
• Resolution: Unresolved
• Affects Version/s: None
• Fix Version/s: Backlog
• Component/s: None
• Labels:

  None

On the master (1.2) branch, if you create a def with an initial function value, {:macro false} is added to the metadata of the return value for def. However, if you look again at the metadata on the var itself, the {:macro false} is not present! This breaks the use of contrib's defalias when aliasing macros, because the new alias is marked as {:macro false}.

The code below demonstrates the issue, which was introduced in http://github.com/richhickey/clojure/commit/430dd4fa711d0008137d7a82d4b4cd27b6e2d6d1, "metadata for fns."

;; all running on 1.2, DIFF noted in comments

(defmacro foo [])
-> #'user/foo

(meta (def bar (.getRoot #'foo)))
-> {:macro false, :ns #<Namespace user>, :name bar, :file "NO_SOURCE_PATH", :line 83}
;; DIFF: where did that :macro false come from??

(def bar (.getRoot #'foo))
-> #'user/bar

(meta #'bar)
-> {:ns #<Namespace user>, :name bar, :file "NO_SOURCE_PATH", :line 84}
;; LIKE 1.1, but really weird: now the :macro false is gone again!

• Assignee:

  Rich Hickey

  Reporter:

  Anonymous

• Created:

  23/Feb/10 8:16 AM

  Updated:

  24/Aug/10 9:32 AM