OperatorOverloadingPlayground.swift

infix operator <~

//func <~<T: Target, S: Source>(left: T, right: S) {
//	print("Free Function")
//}

//func <~<S: Source>(left: BindingTarget, right: S) {
//	print("Free Function 2")
//}

protocol Source {

}

protocol Target {
	static func <~ <S: Source>(left: Self, right: S)
}

extension Target {
	static func <~ <S: Source>(left: Self, right: S) {
		print("Default")
	}
}

public struct CustomizedSignal: Source {
	static func <~ <T: Target>(left: T, right: CustomizedSignal) {
		print("BindingTarget")
	}

	static func <~ (left: BindingTarget, right: CustomizedSignal) {
		print("CustomizedSignalBindingTarget")
	}
}

public struct Signal: Source {

}

public struct Property: Target {

}

public struct BindingTarget: Target {
	static func <~ <S: Source>(left: BindingTarget, right: S) {
		print("BindingTarget")
	}
}

BindingTarget() <~ Signal()
BindingTarget() <~ CustomizedSignal()

Property() <~ Signal()
Property() <~ CustomizedSignal()