Am 31.12.2010 03:29, schrieb Alex Baranosky:
I've been playing with making a macro to encapsulate Stuart's post, like this:(defmacro defrecord-ifn [name & args] `(defrecord ~name ~...@args clojure.lang.IFn (invoke [this key] (get this key)))) (defrecord-ifn Foo [a b c]) (def foo (Foo. "A" "B" "C")) (prn (map foo [:a :c])) => ("A", "C") I get the error: "No such var: user/this". I guess this is because it is expanding 'this' to 'user/this'. What is the proper way to get a macro like this to expand properly?
Others have already pointed to “this#”. I just would like to add that you can as well use “~'this” in some cases, where your macros generate defns. The advantage is that some editors (like emacs) will show you the parameter vector and that would show a useful name and not “this_auto_foobarbaz123456”. -- 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
