ancestors

(ancestors tag) (ancestors h tag)

Answers the set of all ancestors of tag, transitive, in the hierarchy -- the global one, or h in the two-argument form, nil when there are none. A class spelling is the keyword class answers for it (see isa?), and a class adds its Java supers, interfaces and Object included, and their ancestors in the hierarchy. A host class object (interpreter and JVM) adds its supers as class objects, like the oracle.