// This source file is part of the Swift.org open source project
// Copyright (c) 2014 - 2016 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See http://swift.org/LICENSE.txt for license information
// See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors

// RUN: not %target-swift-frontend %s -parse
func c<T) {
class A {
class a {
return x }
class a(Any] == a
func i: e, Any, Any, i : b<c: start: Range<h.init(array: d = ")
var a: d {
protocol A {
}
return NSData() {
for b {
}
}
print() {
}
}
func f() -> (T.b : N
