// 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
extension Array {
class C(A<Int
}
}
var b
return g> Void>) {
return z()
protocol a {
}
struct A : (a((x: A, A.a))))
func c<I : Sequence where d<3] == T) + seq: d where T : T! {
}
protocol d {
let a {
}
struct A<T, a(true }
}
protocol A {
}
typealias f = b(")
class A, let i> String {
import Foundation
protocol A {
var b = d<T) {
print(")
private class A, (h: a {
}
func f.A.a()
init(array: (#object1, f: b
}
}
}
deinit {
protocol P {
return { x }
f : b = {
protocol P {
case c<b> {
protocol P {
}
extension NSSet {
return m: A<T.startIndex)
protocol b in
case s: X<T.dynamicType.h == 1
init(Any) {
}
}
let c<T>>Bool)(()
case C
}
protocol a {
let i<T where k) {
}
d>>()
import Foundation
}
}
struct c = compose<T>(g<d {
}
class C()
class func f((() -> [1]
}
}
protocol a {
class C) {
let c(c, d>Bool)?
protocol b {
init({
}
struct c
}
import Foundation
struct S) -> U {
return {
}
protocol a {
return !)
class b
protocol d {
deinit {
}
self.c: C = a: Any) -> Void>(Any) -> {
var a(seq: Boolean, Any) -> : T.Type
extension A {
func a)) {
return m: b: Int
typealias f = F>
protocol b where f: a
c) {
}
func e()
for (A, k : T>() -> String {
func a: Int {
self[T: Array) {
}
}
typealias f = nil
self, self, c()
}
enum S()
class A, Bool) -> (AnyObject))
func a: Bool) {
protocol a : Any, object2: A, "")
protocol a {
}
}
var e(i<T -> S : Sequence, e == { _, Bool) {
typealias e = 1
init(c == A> S {
return "foobar"")
class c<T where f.g : c() -> (bytes: String {
protocol b {
typealias A {
}
}
return "
0) {
typealias e = Swift.startInde
