// This source file is part of the Swift.org open source project
// Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See https://swift.org/LICENSE.txt for license information
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors

// RUN: not %target-swift-frontend %s -typecheck
func d<T.B() {
class A : b: AnyObject, k : c {
}
class b: A {
}
self] = {
class func b: 1])) {
}
}
d>() {
self.init<d: A, a<T, e, e == c<T {
}
protocol c == D> {
}
}
extension NSSet {
}
return d
