| // errorcheck -0 -race | |
| //go:build (linux && amd64) || (linux && ppc64le) || (darwin && amd64) || (freebsd && amd64) || (netbsd && amd64) || (windows && amd64) | |
| // Copyright 2016 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. | |
| // Issue 17449: race instrumentation copies over previous instrumented nodes from parents block into child's Ninit block. | |
| // This code surfaces the duplication at compile time because of generated inline labels. | |
| package master | |
| type PriorityList struct { | |
| elems []interface{} | |
| } | |
| func (x *PriorityList) Len() int { return len(x.elems) } | |
| func (l *PriorityList) remove(i int) interface{} { | |
| elem := l.elems[i] | |
| l.elems = append(l.elems[:i], l.elems[i+1:]...) | |
| return elem | |
| } | |
| func (l *PriorityList) Next() interface{} { | |
| return l.remove(l.Len() - 1) | |
| } | |
| var l *PriorityList | |
| func Foo() { | |
| // It would fail here if instrumented code (including inline-label) was copied. | |
| for elem := l.Next(); elem != nil; elem = l.Next() { | |
| } | |
| } |