"new" means to make a completely new one. Cloning doesn't mean to make a new one. It means copy this one. The big difference is when the object has a list of other objects contained within it. What does clone mean in this case? Does A and B both point to the same list (shallow copy)? Does B have its own list, each with clones of those contained objects (deep copy)? It's not clear, and that's because a given application might want either behavior, or something completely different. When something isn't clear, it should be made clear. Making it clear, in my mind, involves different methods. Maybe they share a bunch of stuff under the hood, but that's a good thing. There should be different presentations for different actions, though.

"That line", as you put it, removes the distinction between the two concepts. That's not so good. Also, if you asked most people who used it, they would have no idea why that line was there, what it was good for, and what behaviors it allowed/disallowed. That is what my angina is about. If you write a line, you should know what that line does.

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We are the carpenters and bricklayers of the Information Age.

Don't go borrowing trouble. For programmers, this means Worry only about what you need to implement.

In reply to Re7: Constructor/Factory Orthodoxy by dragonchild
in thread Constructor/Factory Orthodoxy by mojotoad

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