Yes, exactly. I'm going to check that out. Thanks Shantanu Tim
On Sun, Jul 3, 2011 at 11:42 AM, Shantanu Kumar <kumar.shant...@gmail.com>wrote: > > > On Jul 3, 7:39 pm, Timothy Washington <twash...@gmail.com> wrote: > > I'm using pre / post assertions quite a bit in a project I'm building. > And I > > too would love to see better or custom error messages for each assertion. > > That should be possible with a macro. For example, I use this: > > https://bitbucket.org/kumarshantanu/clj-miscutil/src/acfb97c662d9/src/main/clj/org/bituf/clj_miscutil.clj#cl-1009 > > Maybe you need something like this(?): > > (defmacro verify-my-arg > "Like assert, except for the following differences: > 1. does not check for *assert* flag > 2. throws IllegalArgumentException" > [err-msg arg] > `(if ~arg true > (throw (IllegalArgumentException. ~err-msg)))) > > Then use it thus: > > (defn foo [m] > {:pre [(verify-my-arg "m must be a map" (map? m))]} > (println m)) > > Regards, > Shantanu > > -- > 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 > -- 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
