>>>>> "ab" == Alessandro Baretta <alex@baretta.com> writes:

    ab> I'm not sure I get what this means. The following is my
    ab> guess. Please, correct me if I'm wrong.

    ab> In a class with multiple inheritance, the method mentioned in
    ab> the warning is defined by multiple parent classes. Hence, the
    ab> last class from which set_sub_node_context is inherited
    ab> overrides the previously inherited definition.

Actually, it's more general.  If there's a pre-existing definition of
the method at all, a warning is given.  So:

class a =
  object
    method m = 1
  end

class b =
  object
    method m = 2
  end

class c =
  object
    method m = 3
    inherit b
  end

class d =
  object
    inherit a
    inherit b
  end

class e =
  object
    inherit b
    method m = 3
  end

You get the warning for classes c and d, but not for class e.

John.

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