`defprotocol` creates a real Var, which you can `use` or `refer` just like a
function.
`deftype` and `defrecord` both create classes, which you must `import` using
the class name. Class names have to be compatible with Java, so dashes are
converted to underscores.
-Stuart Sierra
clojure.com
Forgive me if I'm misunderstanding, but you don't need to import a
protocol to use it. If you need to actually get ahold of the protocol
(say, to implement another deftype/defrecord), you can just use
`require` or `use` to get ahold of it:
(ns stuff
(:use [com.example-ns :only [IFoo])
When I declare using defprotocol:
(defprotocol IFoo
(bar [this] "some doc"))
and then using deftype:
(deftype Foo
IFoo
(bar [this] "from Foo::bar"))
I noticed there is an interesting difference in the way I need to
import them in another namespace:
(:import
(com.example_ns IFoo)
