Just bc it's dynamically typed doesn't mean you can't leverage types for dispatch. Remember, you can single dispatch on type (using protocols), or multi-dispatch using a function applied to the arguments (multimethods).
--- Joseph Smith [email protected] @solussd > On Oct 8, 2013, at 7:46 AM, "John D. Hume" <[email protected]> wrote: > > > On Oct 8, 2013 5:35 AM, "Phillip Lord" > > > > > However… I find that I am writing a lot of statements like this: > > > > > > (cond (hash-map? v) > > > …… > > > > > > (vector? v) > > > …… > > > > > > (list? v) > > > ….. > > > > > > :else …..) > > > > > zcaudate, in what context(s) do you find yourself writing a lot of > expressions like that? I rarely want to allow so much flexibility in > arguments. I'm wondering if there are idioms to avoid it. > > > > I'm not sure a type checker will help in that instance. > > > > > > A type-checker wouldn't no, but a type system would; pretty much > > every language with a static type system has a type based dispatch > > somewhere. It would be nice to be able to do > > > > (defun fn > > ([^vector v] ...) > > ([^list l] ...) > > ([else] ...) > > How is Clojure's protocols feature different from what you're describing? > -- > -- > 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 unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/groups/opt_out. -- -- 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 unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
