Iterating through an Enum in Swift 3.0

Question

I have a simple enum that I would like to iterate over. For this purpose, I\'ve adopted Sequence and IteratorProtocol as shown in the code below. BTW, this can be copy/paste

Answer 1

This looks so much simpler:

public protocol EnumSequence {
    init?(rawValue: Int)
}

public extension EnumSequence {

    public static var items: [Self] {
        var caseIndex: Int = 0
        let interator: AnyIterator = AnyIterator {
            let result = Self(rawValue: caseIndex)
            caseIndex += 1
            return result
        }
        return Array(interator)
    }
}