deadlock.go

package main


import (
   "sync"
   "fmt"
)


type Test2 struct {
  v string;
}


func (db *Test2) String() string{
  return db.v;
}



type Test1 struct {
   sync.Mutex
   a *Test2;
}

func main() {
  test := Test1{}
  
  defer func() {
    test.Lock() 
    fmt.Println("cleanup");
    test.Unlock()
  }();
  
  test.Lock()
  fmt.Println("test", test.a.String())
  test.Unlock()

}