Hi,

Am 19.12.2010 um 00:07 schrieb Tim Daly:

> Is it possible to dispatch based on the return type/value?
> 
> That is, can I write a multimethods dispatch to distinguish
> 
> +(float,float) -> float
> +(float,float) -> int

(defmulti + (fn [x y ret] (vector (type x) (type y) ret))

(defmethod + [Float Float Float]
  ...)

(defmethod + [Float Float Integer]
  ...)

(+ 1.0 2.0 Integer)
(+ 1.0 2.0 Float)

This poses the question: Why do you need that? And: Is Clojure is the right 
tool for this job? This sounds more like Haskell.

Sincerely
Meikel

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