Protocols

This was taken straight from the objc.io book “Advanced Swift.” It’s so damn useful, that I have it made into a standard tool.

The original design was done by Ole Begemann and Chris Eidhof. I have modified it slightly; but not much.

It is fast as all git-go.

A type that can efficiently “enqueue” and “dequeue” elements. It works on one element at a time. You cannot dequeue groups of elements.

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public protocol OLEB_Queue

If you conform to this protocol, you get a few basic Sequence attributes for free.

You’ll need to set up a sequence_contents Array (read/write), and set the Element type, and that’s about all.

This also gives you a read-only subscript.

This cannot be applied to enums, as it requires a stored property.

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public protocol RVS_SequenceProtocol : Sequence