Replication
Work in progress!
class B feature f: INTEGER g is do f := f + 1 end end
class D1 inherit {NONE} B rename f as f_1, g as g_1 end B rename f as f_2, g as g_2 end feature end
An object of class D1 contains two physical attributes (f_1 and f_2). A call to feature g_1 results in f_1 being incremented and a call to g_2 increments f_2.