import Foundation

protocol GenericProtocol: class {
    associatedtype U: Hashable
    associatedtype V: Hashable
}

class ConcreteProtocol: GenericProtocol {
    typealias U = Int
    typealias V = Int
}

class Base<U: Hashable, V: Hashable> {
}

class Concrete<T, U, V> : Base<U, V>
    where T: GenericProtocol, U: Hashable, V: Hashable, T.U == U, T.V == V {
    
//    override init() {
//        super.init()
//    }
}

let instance = Concrete<ConcreteProtocol, Int, Int>()