// 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")
	}
}