def (foo) :case a :case b  # second case is ignored

---

I think I wasn't clear about my meaning. Consider the following definition:

  def (foo 'a b)
    ..

a) Selective-quoting: foo takes two args, the first isn't eval'd.

b) Pattern-matching: that definition of foo is dispatched to if the first arg is a.

So I wasn't sure which to use. Since I posted this I ended up using backquotes for pattern matching, so for case b) you'd end up saying:

  def (foo `a b)
    ..