I've been bitten by this before. Unless there's a good reason for :or to work the way it does I think that would be a good idea, since then you can define "default" maps somewhere else and use those both with the :or keyword or when calling the function itself.
Maybe the :or map can just be underlaid with the actual map being used to call the function? --Robert McIntyre On Sun, Sep 12, 2010 at 9:21 PM, Tom Hicks <[email protected]> wrote: > I just noticed this unexpected result for Map destructuring with an > <quote>:or</quote> directive: > > <pre> > user=> (def guys-name-map {:f-name "Guy" :l-name > "Steele"}) > #'user/guys-name-map > > user=> (let [{:keys [f-name m-name l-name] :or {:m-name "CL"}} guys- > name-map] (str l-name ", " f-name "+" m-name)) > "Steele, Guy+" > > user=> (let [{:keys [f-name m-name l-name] :or {m-name "CL"}} guys- > name-map] (str l-name ", " f-name "+" m-name)) > "Steele, Guy+CL" > </pre> > > Note that the <quote>:or</quote> directive does not seem to respect/ > use the preceeding :keys directive and appears to be doing its lookup > using symbols only. Was this the intended behavior? > > Wouldn't it be more useful to extend the behavior of <quote>:or</ > quote> to use the same lookup method (:keys, :strs, or :syms) as > specified in the (same) preceeding map context? > > -- > You received this message because you are subscribed to the Google > Groups "Clojure" group. > To post to this group, send email to [email protected] > Note that posts from new members are moderated - please be patient with your > first post. > 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 -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to [email protected] Note that posts from new members are moderated - please be patient with your first post. 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
