If I give you a Test::MockObject that can do everything an OP object can but isn't actually blessed into the OP class, you'll think you don't have an OP object if you use ref($obj) eq 'OP. The point is that I want to rule out things that say they are subclasses of OP but not things that would like to think that they are really, truely, an OP object.

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In reply to Re^2: ISA but no farther? by diotalevi
in thread ISA but no farther? by diotalevi

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