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cmd/vet: warn of cyclic closures that cause Finalizers not to run #7546

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slimsag opened this issue Mar 14, 2014 · 2 comments
Open

cmd/vet: warn of cyclic closures that cause Finalizers not to run #7546

slimsag opened this issue Mar 14, 2014 · 2 comments
Milestone
Unreleased

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@slimsag
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@slimsag slimsag commented Mar 14, 2014 

What does 'go version' print?
go version devel +08dcdcdb757b Thu Mar 13 14:04:29 2014 -0700 linux/amd64

What steps reproduce the problem?
1. http://play.golang.org/p/QWn904819Y

What happened?
A tricky case with Finalizers and closures can be created where the Finalizer will not
run due to the cyclic structure created (not a bug). Go vet does not complain about suck
tricky cases which could be useful.

What should have happened instead?
Go vet should warn of such tricky cases.
@ianlancetaylor
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@ianlancetaylor ianlancetaylor commented May 9, 2014

Comment 1:

I don't really see how this could be done in a tool like vet, but I'd be happy to hear
suggestions.

Labels changed: added repo-tools, release-none.

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@gopherbot
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@gopherbot gopherbot commented May 14, 2014

Comment 2:

CL https://golang.org/cl/97480043 mentions this issue.

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@bradfitz bradfitz removed the new label Dec 18, 2014
@rsc rsc added this to the Unplanned milestone Apr 10, 2015
@rsc rsc removed the release-none label Apr 10, 2015
@rsc rsc changed the title cmd/vet: warn of cyclic closures that cause Finalizers not to run x/tools/cmd/vet: warn of cyclic closures that cause Finalizers not to run Apr 14, 2015
@rsc rsc added this to the Unreleased milestone Apr 14, 2015
@rsc rsc removed this from the Unplanned milestone Apr 14, 2015
@rsc rsc removed the repo-tools label Apr 14, 2015
dominikh added a commit to dominikh/go-staticcheck that referenced this issue Nov 13, 2016
@dominikh
Detect cyclic finalizers
a566016 
Based on golang/go#7546

Idea-By: Stephen Gutekanst <stephen.gutekanst@gmail.com>
dominikh added a commit to dominikh/go-tools that referenced this issue Jan 24, 2017
@dominikh
Detect cyclic finalizers
edfbad7 
Based on golang/go#7546

Idea-By: Stephen Gutekanst <stephen.gutekanst@gmail.com>
@mvdan mvdan changed the title x/tools/cmd/vet: warn of cyclic closures that cause Finalizers not to run cmd/vet: warn of cyclic closures that cause Finalizers not to run May 31, 2018
@bcmills bcmills mentioned this issue Sep 16, 2020
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5 participants
@bradfitz @rsc @slimsag @ianlancetaylor @gopherbot