Enum-like types for Go (golang) that provides string representation

enum.go

package main

import "fmt"

var enums []string

type Enum int

func (e Enum) String() string {
	return enums[int(e)]
}

func ciota(s string) Enum {
	enums = append(enums, s)
	return Enum(len(enums) - 1)
}

var (
	Alpha = ciota("A")
	Beta  = ciota("B")
)

type Example struct {
	X Enum
}

func main() {
	fmt.Printf("%+v\n", Example{Alpha})
	fmt.Printf("%+v\n", Example{Beta})
}

https://play.golang.org/p/HZ9u0C-_k22
It works, thanks