// 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
struct B{
class A{
protocol a{
{
{
}{{
{
{{{{{
{{
{{
{
{{{
{
[[{{
{
{}}
{
{{
{
{
{{{
{{
{
{
{
{{
{{
{
{
{
{{{
{
{
{{
{
{
{{{
{
{
{{{{
{
{
{
{{
{{
{{{
{
}
{{
}
{
{{
{
{{
{{{{
{{
{
{
{{
{
{
}str
"
}}
let s={{
class
case,
class