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cmd/vet: vet's heuristic for lock detection has unreasonable false positives #26165

kortschak opened this issue Jun 30, 2018 · 2 comments


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@kortschak kortschak commented Jun 30, 2018

What version of Go are you using (go version)?

go version go1.10.3 linux/amd64

Does this issue reproduce with the latest release?


What operating system and processor architecture are you using (go env)?


What did you do?

Run go vet on the code at

package fauxlock

type fl struct{}

func (l *fl) Lock() error { return nil }

type w struct{ fl }

func wrap(l *fl) w { return w{*l} }

What did you expect to see?

No output since *fl does not implement sync.Locker.

What did you see instead?

$ go vet
# _/home/.../lock-vet
./lock.go:9: literal copies lock value from *l: fauxlock.fl
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@gopherbot gopherbot commented Jul 1, 2018

Change mentions this issue: cmd/vet,sync: check lock values more precisely

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@andybons andybons commented Jul 2, 2018

@andybons andybons added this to the Unplanned milestone Jul 2, 2018
@gopherbot gopherbot closed this in c2eba53 Jul 14, 2018
@golang golang locked and limited conversation to collaborators Jul 14, 2019
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