My first thought on seeing:
(collide some-gaussjammer some-starship)
was "He's colliding two starships, he'll want (defmethod collide
[::starship ::starship] ...)"
In (what's left of) my OO brain, I think "That only requires one
upcast on gaussjammer to starship in order to get an exact matc
Here's a simplification of an exercise I was trying to write. We have a
two-level hierarchy of objects:
(derive ::starship ::thing)
(derive ::gaussjammer ::starship)
We have a generic function that uses both arguments:
(defmulti collide (fn [one two] [(type one) (type two)]))
We ha
