enum ClosedRange.Index A type that represents a position in the collection. Valid indices consist of the position of every element and a "past the end" position that's not valid for use as a subscript argument. Inheritance Comparable, Equatable, Hashable View Protocol Hierarchy → Import import Swift Cases case pastEnd case inRange(Bound) Instance Variables var hashValue: Int Hashes the essential components of this value by feeding them into the given hasher. hasher: The hasher to use when combining the components of this instance. Declaration var hashValue: Int { get } Instance Methods func hash(into:) Hashes the essential components of this value by feeding them into the given hasher. Implement this method to conform to the Hashable protocol. The components used for hashing must be the same as the components compared in your type's == operator implementation. Call hasher.combine(_:) with each of these components. Important: Never call finalize() on hasher. Doing so may become a compile-time error in the future. hasher: The hasher to use when combining the components of this instance. Declaration func hash(into hasher: inout Hasher)