False positive with generic interface and generic type

[errrov]

• The output of 'staticcheck -version' : staticcheck.exe 2024.1.1 (0.5.1)

• The output of 'go version' go version go1.23.0 windows/amd64

• Exactly which command you ran staticcheck main.go

• Output of the command and what's wrong with the output

  main.go:31:2: field v is unused (U1000)
  main.go:38:28: func (*genericStruct[T]).setValue is unused (U1000)
  main.go:42:28: func (*genericStruct[T]).getValue is unused (U1000)

• Code (playground)

  
  package main

import ( "fmt" "reflect" )

type valueHandler[T any] interface { setValue(T) getValue() T }

type handler[T any] struct { valueHandler[T] }

func (h *handler[T]) setAndGetValue(v T) { h.setValue(v) va := h.getValue() fmt.Println("Value is : ", va) }

type genericStruct[T any] struct { v T }

func newGenericStruct[T any]() *genericStruct[T] { return &genericStruct[T]{} }

func (g *genericStruct[T]) setValue(v T) { fmt.Println("setting value") g.v = v }

func (g *genericStruct[T]) getValue() T { fmt.Println("getting value") return g.v }

func main() { test := handler[int]{newGenericStruct[int]()} test.setAndGetValue(1) }

So staticcheck shows that functions `setValue` and `getValue` are not used. However we can see that messages of "setting value" and "getting value" appear. So they are clearly used. For me it seems like false positive.