I think that because a Swift array of objects must be bridgeable from Objective-C, and Objective-C arrays might be non-contiguous, Swift arrays of objects must

I think that because a Swift array of objects must be bridgeable from Objective-C, and Objective-C arrays might be non-contiguous, Swift arrays of objects must be permitted to be non-contiguous. This isn’t a concern with arrays of structs because they don’t exist in Objective-C. In practice, I’d imagine that Swift arrays of objects that are never bridges to/from Objective-C are almost always contiguous.