1 // Copyright 2021 The Go Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style 3 // license that can be found in the LICENSE file. 4 5 package p 6 7 func F(s string) { 8 switch s[0] { 9 case 'a': 10 case s[2] { // ERROR unexpected { 11 case 'b': 12 } 13 } 14 } // ERROR non-declaration statement 15