What I ended up doing was forward-declaring a wrapper to the constructor of
the later class. I actually am implementing a protocol, but the concrete
types representing the persistent and transient versions need to reference
each other. Also, I'm using deftype over defrecord because I want the
Few things to consider: code against protocols where possible (removes the
need to forward declare methods). Forward declare the constructor functions:
(declare ->Foo)
...
(defn some-code []
(->Foo 1 2))
(defrecord Foo [x y])
If you need to do type checks check for a protocol instead.
Pretty sure Michal Marczyk mentioned this in his Clojure/West talk last week:
https://www.youtube.com/watch?v=vZtkqDIicqI=14=PLZdCLR02grLq4e8-1P2JNHBKUOLFTX3kb
(I don’t remember exactly what he said was the workaround)
Sean Corfield -- (904) 302-SEAN
An Architect's View --
I'm working with two deftypes that I want to be able to references each
other. (They're persistent and transient implementations of the same
collection.)
So far, it seems that the normal clojure.core/declare doesn't work in this
case. Is there another way to do it?
Thanks
--
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