.\hoge.go:7: initialization loop ref: http://qiita.com/zetamatta/items/cc0f29441b16d63472ed

file1.txt

$ go run hoge.go
# command-line-arguments
.\hoge.go:7: initialization loop:
        C:\Users\…\GoSrc\tmp\hoge.go:7 funcList refers to
        C:\Users\…\GoSrc\tmp\hoge.go:9 listing refers to
        C:\Users\…\GoSrc\tmp\hoge.go:7 funcList

hoge.go

package main

import "fmt"

var funcList = map[string]func(){
    "listing": listing,
}

func listing() {
    for key, _ := range funcList {
        fmt.Println(key)
    }
}

func main() {
    funcList["listing"]()
}