“Golang enum тип” Ответ

Golang enum тип

package main

import "fmt"

type CustomType int

func (enum CustomType) Enum(index CustomType, data []string) string {
	return data[index]
}

func main() {

	// example one created enum type
	const (
		Admin = iota
		User
		Staff
	)

	var RolesEnum CustomType = Admin | User | Staff
	data := []string{"Admin", "User", "Staff"}

	fmt.Printf("enum version one %#v \n", RolesEnum.Enum(RolesEnum&Admin, data))

	// example two created enum type
	var EnumStatusList = struct {
		Completed string
		Rejected  string
		Error     string
	}{
		Completed: "Completed",
		Rejected:  "Rejected",
		Error:     "Error",
	}

	fmt.Printf("enum version two %#v \n", EnumStatusList.Completed)
	
   // example three created enum type
	const (
		Kucing = "Kucing"
		Gajah  = "Gajah"
		Biawak = "Biawak"
	)
	
     fmt.Printf("enum version three %#v \n", Kucing)
}