class C1 : Prot {

    typealias Element = Int

    var p: Int

    func foo()

    subscript(_ index: Int) -> Int { get }

    subscript(index i: Float) -> Int { get }

    enum C1Cases : Int {

        case case1
    }

    func foo1()

    func extfoo()

    subscript(_ index: Int) -> Int { get }
}

extension C1 : P4 {

    func C1foo()

    struct C1S1 {

        func C1S1foo(a a: P4)
    }
}

class C2 : cake.C1 {

    func C2foo()

    enum C1Cases : Int {

        case case1
    }

    func foo1()

    func extfoo()

    subscript(_ index: Int) -> Int { get }
}

extension C2 : P4 {

    func C1foo()

    struct C1S1 {

        func C1S1foo(a a: P4)
    }
}

enum MyEnum : Int {

    case Blah
}

@objc protocol P2 {

    @objc optional func foo1()
}

protocol P3 {

    associatedtype T
}

protocol P4 {
}

protocol Prot {

    associatedtype Element

    var p: Int { get }

    func foo()

    func foo1()
}

extension Prot {

    func foo1()

    subscript(_ index: Int) -> Int { get }
}

extension Prot where Self.Element == Int {

    func extfoo()
}

struct S1 {

    enum SE {

        case a

        case b

        case c
    }

    func foo1()

    struct S2 {

        let b: Int
    }
}

struct S2 : P3 {

    typealias T = cake.S2
}

func genfoo<T1, T2>(x ix: T1, y iy: T2) where T1 : Prot, T2 : cake.C1, T1.Element == Int


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