On Thu, Nov 17, 2011 at 12:44 PM, missingfaktor <[email protected]
> wrote:
> Factor's generic words are similar to Clojure's multimethods. However
> there are times when protocols (in Clojure speak) are more appropriate
> abstraction. Does Factor support a construct similar to protocols?
>
There is a protocol construct used by the delegation mechanism, which
groups together related generics:
GENERIC: succ ( n -- n' )
GENERIC: pred ( n -- n' )
PROTOCOL: enumerable succ pred ;
TUPLE: derived-enumerable from ;
CONSULT: derived-enumerable enumerable
from>> ;
It's not used as extensively in the Factor library as it perhaps should be.
In particular, protocols don't function as types.
-Joe
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