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import Swift

@frozen struct UTF16View

A view of a string’s contents as a collection of UTF-16 code units.

@frozen struct String

A Unicode string value that is a collection of characters.

@frozen struct Int

A signed integer value type.

var customMirror: Mirror { get }

Returns a mirror that reflects the UTF-16 view of a string.

var debugDescription: String { get }

var description: String { get }

var endIndex: String.UTF16View.Index { get }

The “past the end” position—that is, the position one greater than the last valid subscript argument.

var startIndex: String.UTF16View.Index { get }

The position of the first code unit if the String is nonempty; identical to endIndex otherwise.

subscript(r: Range<String.UTF16View.Index>) -> Substring.UTF16View { get }

subscript(idx: String.UTF16View.Index) -> UTF16.CodeUnit { get }

Accesses the code unit at the given position.

func distance(from start: String.UTF16View.Index, to end: String.UTF16View.Index) -> Int

func index(_ i: String.UTF16View.Index, offsetBy n: Int) -> String.UTF16View.Index

func index(_ i: String.UTF16View.Index, offsetBy n: Int, limitedBy limit: String.UTF16View.Index) -> String.UTF16View.Index?

func index(after idx: String.UTF16View.Index) -> String.UTF16View.Index

func index(before idx: String.UTF16View.Index) -> String.UTF16View.Index

func makeIterator() -> String.UTF16View.Iterator

@frozen struct Iterator

typealias Index = String.Index

typealias SubSequence = Substring.UTF16View

var customPlaygroundQuickLook: _PlaygroundQuickLook { get }