gistfile1.swift

enum Enum : Equatable {
	case Case1
	case Case2(variable: AnyObject)
}
 
let a = Enum.Case1
let b = a == Enum.Case1

func == (e1: Enum, e2: Enum) -> Bool {
	switch e1 {
	case .Delete:
		switch e2 {
		case .Delete:
			return true
		case .Insert:
			return false
		}
	case .Insert(let elem1):
		switch e2 {
		case .Delete:
			return false
		case .Insert(let elem2):
			return elem1 == elem2
		}
	}
}