On Nov 28, 11:14 am, Meikel Brandmeyer <m...@kotka.de> wrote: > Hi, > > Am 28.11.2011 um 20:10 schrieb Brent Millare: > > > I need to verify if an object implements a protocol. Looking at the source > > code, I noticed that protocol objects act as a map, and has the key :impls. > > From this is a map I can look up a class to see if there are functions. The > > resulting code is: > > > (defn implements? [protocol obj] > > (boolean ((:impls protocol) (class obj)))) > > > The problem with this is this relies on implementation details. I would > > like to do this safely. I noticed that in clojure.core there is a private > > function implements?. This appears to do what I want. Is it possible to > > make this public? What is the motivation for keeping it private? > > You want satisfies? ? > > Sincerely > Meikel
satisfies? is more correct than his implementation, too. :impls doesn't contain an entry for classes which actually implement the generated interface, only for those which extend the protocol after definition. -- 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
