Protocols

Describes an object that has a specific value representing its empty state.

Describes an object that be empty.

let str = ""
let retval = str.isEmpty

// so something with str which is true

Conformance to this protocol provides implementation of some of the Kotlin Scope Functions. To add conformance to your own types, see examples below.

class MyClass: ScopeFunctions {}

struct MyStruct: ScopeFunctions {}