On Sun, 2011-12-18 at 11:56 -0800, Bill Robertson wrote: > I'm trying to define records based on meta data read in at runtime, > Short of generating a string and calling eval on it, is this possible?
Supposing by "string" you meant "expression", no. https://groups.google.com/d/msg/clojure/kdAWhfBbxVc/czQ7rPRQwPsJ You may wish, however, to generate your defrecord forms in a macro instead. At that point, you may exploit the fact that previous top-level forms have already been evaluated at macro-expansion time: (defmacro my-stuff [blah] ;; I can assume that (hey you!) has been evaluated! ;; So if (hey you!) put something where I can get at it, `(defrecord ~based-on-hey-you ~@based-on...)) (hey you!) (my-stuff that-relies-on-hey-you) Remember, though, that if you AOT-compile, your generated defrecord will be based on the (hey you!) that was evaluated when compiling, not the one evaluated when loading the compiled files later. In short, my-stuff should have deterministic, repeatable results, and should therefore only rely on deterministic features of (hey you!), e.g. gensyms will break. -- Stephen Compall ^aCollection allSatisfy: [:each|aCondition]: less is better -- 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
