// 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
class x<u>: d {
init(i: u) {
o.i = j {
}
protocol h {
q k {
}
}
}
class b<i : == g> {
func d<i>() -> (i, i -> i) -> i {
i j i.f = {
}
protocol d {
class func f()
}
class i: d{  class func f {}
