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Source file test/fixedbugs/issue17449.go

Documentation: test/fixedbugs

  // errorcheck -0 -race
  // 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() {

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