David Nolen wrote: > (defmacro foobar [] > `'(+ a b)) > > (let > [a 5 > b 6] > (eval (foobar))) > > >
-You should almost never have to use eval. -Don't use macros when a function will do Thanks to the answer of chooser a bit earlier : cara.trie> (defmacro foobar [] `(+ ~'a ~'b)) nil cara.trie> (let [a 10 b 13] (foobar)) 23 -Variable capturing macros can be bad style and dangerous too. You would usually pass the symbols to act upon as parameters. cara.trie> (defmacro foobar [symb1 symb2] `(+ ~symb1 ~symb2)) nil cara.trie> (let [a 10 b 13] (foobar a b)) 23 Sacha --~--~---------~--~----~------------~-------~--~----~ 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 To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/clojure?hl=en -~----------~----~----~----~------~----~------~--~---
