Unexpected ineffectual assignment after switch

[Antonboom]

Hello!

package main

import "fmt"

func returnFalse() bool {
    return false
}

func returnTrue() bool {
    return true
}

func main() {
    isValid := true

    var i interface{} = 100

    switch i.(type) {
    case int:
        isValid = returnFalse()
    default:
        isValid = returnTrue()
    }
    if !isValid {
        fmt.Println("value changed")
    }
}

▶ ineffassign main.go 
/Users/anthony/main.go:14:2: ineffectual assignment to isValid

[Antonboom]

I'm sorry. I didn’t notice which line the linter was pointing to.

Thank u for linter!