EnumerationSwift

Never

The return type of functions that do not return normally, that is, a type with no values.

@frozen enum Never

Overview

Use Never as the return type when declaring a closure, function, or method that unconditionally throws an error, traps, or otherwise does not terminate.

func crashAndBurn() -> Never {
    fatalError("Something very, very bad happened")
}

Members

Instance Properties

Operators

Conforms To