@swiftbot
class A : CustomStringConvertible{ let val: Int init(_ val: Int) { self.val = val } deinit { print("deinit: \(self)") } var description: String { return "A(\(val))" } } var x: ArraySlice<A> = [A(1), A(2), A(3)] do { let y = x print("A") x.removeFirst() x[2] = A(4) print("B") x.removeFirst() x[2] = A(5) print("C") x.removeFirst() print("D") } print("E")