Ensure foo() is before subFoo() in source code

[guettli]

Imagine you have function foo() which uses subFoo(), and subFoo() is only used inside foo().

Now I would like to have a linter which checks that in the source code foo() comes first, and then subFoo().

Is there already something like this?

[ldez]

Hi,

there are existing analyzers on the topic, but there are not inside golangci-lint because of their false-postives.

https://github.com/devnev/refdir
https://github.com/nikolaydubina/vertfn