| // run -gcflags=-G=3 | |
| // Copyright 2022 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 f[B any](b B) { | |
| if b1, ok := any(b).(interface{ m1() }); ok { | |
| panic(1) | |
| _ = b1.(B) | |
| } | |
| if b2, ok := any(b).(interface{ m2() }); ok { | |
| panic(2) | |
| _ = b2.(B) | |
| } | |
| } | |
| type S struct{} | |
| func (S) m3() {} | |
| func main() { | |
| f(S{}) | |
| } |