// 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 w<r>: c {
init(g: r) {
struct t : o {
}
q t<where n.v ==  t<v : o u m : v {
}
struct c<e> {
}
}
struct e : f {
}
func i<g : g, e : f where e.f == g> (c: e) {
}
func i<h : f where h.f == c> (c: h) {
}
class a<f : g, g : g where f.f == g> {
}
protocol g {
}
struct c<h : g> : g {
typealias e = a<c<h>, f>
protocol b {
}
struct c {
func e() {
docol t {
}
protocol d : t {
}
protocol g : t {
}
})
}
protocol e {
}
struct m<v : e> {
}
protocol n {
g == o>(n: m<v>) {
}
}
struct e<v> {
}
struct d<x> : e {
func d(d: d.p) {
}
}
class e<v : e> {
}
class A<T : A> {
}
func c<d {
enum c {
func e
var _ = e
}
}
protocol a {
