What are "fast" linters?

[jamesrobb]

Hello,

When looking at the documentation for golangci-lint run I see the --fast option is document as:

--fast                           Run only fast linters from enabled linters set (first run won't be fast)

What exactly is a "fast" linter, and what determines that label for a linter? I can certainly understand some are more expensive than others and it might not be desirable to run them all in one's IDE. I'm just looking to satisfy my curiosity on this, and haven't been able to find meaningful documentation on it. Can someone help show me the light?

[blizzy78]

There are a few linters that are explicitly declared as being "slow". See manager.go and search for ConsiderSlow().

Also all linters that do type analysis are automatically declared as being slow, which are quite a lot. See manager.go and search for WithLoadForGoAnalysis().