// 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 g<e?) -> {
return $0.f = 1, a: () {
self.h>(b)(n: [c(v: NSObject {
}
protocol A : a {
protocol e == 0) -> String {
get {
}
}
class a {
}
protocol a {
struct S {
}
return g: C {
}
public var b = a(x: Int
}
}
}
}
typealias e == 0) {
class a {
map(g() {
}
func a<T) { x in x }
struct S) {
}
}
}
protocol P {
typealias B : B) {
ini
