1// run
2
3// Copyright 2024 The Go Authors. All rights reserved.
4// Use of this source code is governed by a BSD-style
5// license that can be found in the LICENSE file.
6
7package main
8
9func main() {
10	ch1 := make(chan struct{})
11	var ch2 <-chan struct{} = ch1
12
13	switch ch1 {
14	case ch2:
15	default:
16		panic("bad narrow case")
17	}
18
19	switch ch2 {
20	case ch1:
21	default:
22		panic("bad narrow switch")
23	}
24}
25