// 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
struct S : NSObject {
func b<h : b, e where l) -> (x: l) {
func g<T {
return S) {
class c) {
class func d) in x in a {
}
protocol P {
convenience init() {
struct d>({
[T.E == """"[1)) { _, f: b) -> V {
typealias B {
struct D : AnyObject.h : (x) -> (T>? = c) {
enum S<T, e = b([1]]
return ")
}
}
