| // run -gcflags=-G=3 | |
| // Copyright 2021 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[G any]() interface{} { | |
| return func() interface{} { | |
| return func() interface{} { | |
| var x G | |
| return x | |
| }() | |
| }() | |
| } | |
| func main() { | |
| x := f[int]() | |
| if v, ok := x.(int); !ok || v != 0 { | |
| panic("bad") | |
| } | |
| } |