// 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
protocol A {
    typealias E
}
struct B<T : A> {
    let h -> g {
   d j d.i = {
}
 {
   g) {
        h  }
}
protocol f {
   class func i()
}
class d: f{  class func i {}
struct d<f : e,e where g.h == f.h> {
}
protocolias h
}
func some<S: Sequence, T where Optional<T> == S.Iterator.Element>(xs : S) -> T? {
    for (mx : T?) in xs {
        if let x = mx {
            return x
        }
    }
    return nil
}
let xs : [Int?] = [nil, 4, nil]
print(some(xs))
fuotocol A {
    typealias B
}return []
}
func i(c: () -> ()) {
}
cnc c<d {
    enum c {
        func e
        var _ = e
    }
}
class A<T : A> {
}
func some<C -> b = b
}
protocol A {
    typealias E
}
struct B<T : As a {
    typealias b = b
}
func a<T>() {f {
   class func i()
}
class d: f{  class func i {}
func f() {
    ({})
}
func prefix(with: String) -> <T>(() -> T) -> String {
  return { g in "\(with): \(g())" }
}
protocol a : a {
}
var x1 = 1
var f1: Int -> Int = {
    return $0
}
let su a(2, 3)))