swift Swot的扩展就像Kotlin一样

Posted 2021-05-19

protocol Kotlin {}

extension Kotlin {
	func lets<R>(_ closure: (Self) -> R) -> R {
		return closure(self)
	}
	
	func apply(closure: (Self) -> Void) -> Self {
		closure(self)
		return self
	}
}

extension Int: Kotlin {}
extension NSObject: Kotlin {}