Segmentation fault

1

protocol A {
    class var a: [B]? { get }
}

class B {
    
}

class C {
    let ca: [B]?
    
    init(a: A) {
        ca = A.a
    }
}

2

protocol B {
    var c: [C] { get }
}

protocol C {
    var b: [B] { get }
}

3

import Foundation

func aFunc(any: Any) {
    println("aFunc")
}

func bFunc() -> AnyObject {
    return NSString(string: "string")
}

aFunc(bFunc())

4

protocol Protocol {}
class A<T: Protocol> {}
struct B {
    let a: A<Protocol>
}

5

enum Enumaration<T> {
    case Some(() -> T)
}