go copylock 源码
golang copylock 代码
文件路径：/src/cmd/vet/testdata/copylock/copylock.go
// 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"
}
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