Interface SegregationThe interface segregation principle is pretty sound, make interfaces small so that a client or user of the interface only needs to implement or use the methods it cares about. This is pretty good thinking, generally small cohesive things are better.
But in the long run does this not just lead to being easier with duck typing? I guess maybe that is then an extreme implementation of the interface all together. Yeah we're going to lose the niceness of knowing that if A exists on the interface so does B but hey there's a compromise to everything. But I guess in that case you don't need to separate interfaces up if one client only wants to implement a part.
Yeah i went a bit off track with this one, I'm on a break at a conference and I really don't disagree much with the principle :)
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