shit.swift

import Foundation

infix operator <| { associativity right precedence 95 }
func <|<A, R>(@noescape f: A -> R, a: A) -> R {
    return f(a)
}
func <|<A, B, R>(@noescape f: (A, B) -> R, a: (A, B)) -> R {
    return f(a.0, a.1)
}

let a = (10, "String")

func f(a: (Int, String)) -> String {
    return "TUPLE"
}
func f(a: Int, _ b: String) -> String {
    return "2ARY"
}

let k = f(_:_:) <| a
print(k)