Swift Protocol Extension and Generics

example.swift

protocol MyProtocol
{
	typealias GenType

	func doSomething(param: GenType)
}

class MyObject<T> : MyProtocol
{
	typealias GenType = T

	var param : T { get }
	
	func doSomething(param: GenType)
	{
		print("Doing something with \(param)")
	}
}

extension MyProtocol
{
	func doSomethingElse(param: GenType)  // This line will not compile; GenType is unavailable here
	{
		let param : GenType = self.param // How can we compile against type of self.param here?

		print("Doing something else with \(param)")
	}
}