| // Copyright 2018 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 copylock | |
| import "sync" | |
| func BadFunc() { | |
| var x *sync.Mutex | |
| p := x | |
| var y sync.Mutex | |
| p = &y | |
| *p = *x // ERROR `assignment copies lock value to \*p: sync.Mutex` | |
| } |