// 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 f<T) {
class A {
class A {
class A {
let n1: c<B : d {
}
convenience init(()) {
typealias b {
}
struct c(self)) in c == j> {
enum S<T, c, self.f == 0] as String) {
init <c, AnyObject) {
}
}
protocol c {
}
enum A {
}
}
}
class func f):
class B : a {
typealias f = A> Any, Any, x }
}
class a()
p
