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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

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@slimsag @ianlancetaylor @gopherbot @bradfitz @rsc
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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.
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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 commented May 14, 2014

Comment 2:

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

@slimsag slimsag added new labels May 14, 2014

@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 modified the milestones: Unreleased, Unplanned 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 
Based on golang/go#7546

Idea-By: Stephen Gutekanst <stephen.gutekanst@gmail.com>
a566016

dominikh added a commit to dominikh/go-tools that referenced this issue Jan 24, 2017

@dominikh
Detect cyclic finalizers 
Based on golang/go#7546

Idea-By: Stephen Gutekanst <stephen.gutekanst@gmail.com>
edfbad7

@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

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