| // run | |
| // Copyright 2024 The Go Authors. All rights reserved. | |
| // Use of this source code is governed by a BSD-style | |
| // license that can be found in the LICENSE file. | |
| package main | |
| func main() { | |
| ch1 := make(chan struct{}) | |
| var ch2 <-chan struct{} = ch1 | |
| switch ch1 { | |
| case ch2: | |
| default: | |
| panic("bad narrow case") | |
| } | |
| switch ch2 { | |
| case ch1: | |
| default: | |
| panic("bad narrow switch") | |
| } | |
| } |