Linked List - Swift Enums

Linked List

indirect enum LinkedListNode {
    case head(value: Int, node: LinkedListNode)
    case node(value: Int, next: LinkedListNode)
    case tail(value: Int)
}

let linkedList = LinkedListNode
    .head(value: 0, node:
            .node(value: 1, next:
                    .node(value: 2, next:
                            .node(value: 3, next:
                                    .tail(value: 4)))))