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Swift Class Clusters

There was an interesting discussion at work today that led to class clusters.

First, I was surprised by the fact that, apparently, class clusters are something only old farts like me are aware of. But the discussion got me wondering: would it be possible to implement a class cluster in Swift?

Well, apparently it is. Let’s say we want to consume this cluster within the module it is declared in. So, by relying on inner types, we coudl do somenthing like this:

So, now we could do something like this:

Now, the question is: would I ever do this in production code? I am not sure. Are there better ways to simulate a class cluster? I assume there would be, so if you know about them, please shout out in the comments!

Anyway, for those interested, there is a sample project on github

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