Hi,
you can still use a defrecord. Just don't implement the protocol inline.
Clojure
user=> (ns foo.bar (:refer-clojure :exclude [get]))
nil
foo.bar=> (defprotocol FooBar (get [this]))
FooBar
foo.bar=> (ns foo.baz)
nil
foo.baz=> (alias 'fb 'foo.bar) ; this is due to working only in the repl.
Normally you would use :require in the ns clause.
nil
foo.baz=> (defrecord Baz [a b c])
foo.baz.Baz
foo.baz=> (extend-type Baz
fb/FooBar
(get [{:keys [a b c]}] (str a b c)))
nil
foo.baz=> (fb/get (->Baz "fo" "ob" "ar"))
"foobar"
Implementing a protocol inline is an optimisation, not a requirement.
Meikel
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