// 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
let:{
class A{
case
{
{{
{({
[[{
{
({
{
{
[
{
{
{{{
{{
{
{
((({
{
(((((({
{
{
{
{
{{{
{
"
protocol a{
extension{
class
case,