Detects Go 1.18 Fuzz methods as unused code

[Hades32]

Welcome

• Yes, I'm using a binary release within 2 latest major releases. Only such installations are supported.
• Yes, I've searched similar issues on GitHub and didn't find any.
• Yes, I've included all information below (version, config, etc).
• Yes, I've tried with the standalone linter if available. (https://golangci-lint.run/usage/linters/)

Description of the problem

$ golangci-lint run                                                          
grid_test.go:128:6: `FuzzRectVsGrid` is unused (deadcode)
func FuzzRectVsGrid(f *testing.F) {

Version of golangci-lint

golangci-lint has version v1.44.2 built from (unknown, mod sum: "h1:MzvkDt1j1OHkv42/feNJVNNXRFACPp7aAWBWDo5aYQw=") on (unknown)

Configuration file

none

Go environment

go version go1.18 linux/amd64

Verbose output of running

Code example or link to a public repository

func FuzzRectVsGrid(f *testing.F) {
}

[boring-cyborg]

Hey, thank you for opening your first Issue ! 🙂 If you would like to contribute we have a guide for contributors.

[ldez]

Hello,

Currently golangci-lint doesn't support go1.18, you can follow #2649

https://github.com/golangci/go-misc/deadcode

[ldez]

With a compiled version of golangci-lint with Go1.18, I don't reproduce the problem.

[DasSkelett]

This also happens for me with v1.45.2 downloaded through the install script:
https://gitlab.com/DasSkelett/apnic-ipv6-stats-json-exporter/-/jobs/2265816300

$ curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b /usr/local/bin
golangci/golangci-lint info checking GitHub for latest tag
golangci/golangci-lint info found version: 1.45.2 for v1.45.2/linux/amd64
golangci/golangci-lint info installed /usr/local/bin/golangci-lint

$ golangci-lint run
level=warning msg="[linters context] gosimple is disabled because of go1.18. You can track the evolution of the go1.18 support by following the https://github.com/golangci/golangci-lint/issues/2649."
level=warning msg="[linters context] staticcheck is disabled because of go1.18. You can track the evolution of the go1.18 support by following the https://github.com/golangci/golangci-lint/issues/2649."
level=warning msg="[linters context] structcheck is disabled because of go1.18. You can track the evolution of the go1.18 support by following the https://github.com/golangci/golangci-lint/issues/2649."
level=warning msg="[linters context] unused is disabled because of go1.18. You can track the evolution of the go1.18 support by following the https://github.com/golangci/golangci-lint/issues/2649."
querier_fuzz_test.go:11:6: `FuzzTarget_ToString` is unused (deadcode)
func FuzzTarget_ToString(f *testing.F) {
     ^
Cleaning up project directory and file based variables 00:01
ERROR: Job failed: exit code 1

But that does appear to be compiled with Go 1.18?

The .golangci.yml, and the querier_fuzz_test.go for which deadcode raises the error.

[ldez]

Thank you, I'm able to reproduce the problem, I will fix that quickly.