1// compile
2
3// Copyright 2021 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 fn() func(interface{}) {
10	return func(o interface{}) {
11		switch v := o.(type) {
12		case *int:
13			*v = 1
14		}
15	}
16}
17
18func main() {
19	fn()
20}
21