Delegation is distinct from interfaces & far more powerful. It is
part of the runtime as you mentioned, but Cocoa==Obj-C like
JavaVM==Java. Java actually took the concept of interfaces from
Objective-C where they are called protocols.
I never said that delegation and interfaces are the same thing. I
said that delegation can be implemented using interfaces.
IMHO, Interfaces are a poor way to implement delegation; once fixed
they cannot be easily extended without breaking client code.
Karl
--
In walking, just walk. In sitting, just sit. Above all, don’t wobble.
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