On 19.03.2010, at 12:09, Per Vognsen wrote: > It looks like there isn't a way to get at the class behind a deftyped > type other than constructing a dummy instance and taking its class, > because the generated class has a gensymmed name. I was doing > something where I needed to test when something was an instance of a > deftype, so I added this to the `(do ...) block in deftype's > implementation:
The official approach is to check for type rather than class, the type being the namespace-qualified keyword version of the type name. The class is considered an implementation detail. Considering that there is already an alternative implementation of Clojure (ClojureCLR) and that there might be more in the future, this is pretty reasonable in my opinion. Here's an (untested) example: (deftype Foo [bar]) (defn is-this-a-foo? [x] (identical? (type x) ::Foo)) Konrad. -- 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 To unsubscribe from this group, send email to clojure+unsubscribegooglegroups.com or reply to this email with the words "REMOVE ME" as the subject.
