[go-nuts] Have you seen any static analysis checker for sync.Mutex.Unlock() call?

[たふみ]

Hi,

I'm seeking the static analysis checker (go vet tool) for missed call 
sync.Mutex.Unlock().

For example: source code is like

type T struct {
  mu sync.Mutex
}

func (t *T) A(a bool) {
  t.mu.Lock()

  if (a) {
    // here missing t.mu.Unlock()
    return
  }
  t.mu.Unlock()
}

and by running go vet -vettool SOME_AWESOME_CHECKER, I want to find the 
absent of Unlock().

Currently, I'm developing this kind of tool (progress is about 60%), but if 
it exists, I don't want to reinvent the wheel.

So if you have ever seen any other related project, please let me know.

Thanks, 
Tafumi

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