Enum in Go

color.go

// This should be in a color/ directory (but gists don't allow subdirectories)
package color

var (
	Red  = Color{"red"}
	Blue = Color{"blue"}
)

type Color struct {
	name string
}

func (c *Color) Name() string {
	return c.name
}

main.go

package main

import (
	"fmt"
	"./color"
)

func printColor(c color.Color) {
	fmt.Println(c.Name())
}

func main() {
	printColor(color.Red)
	printColor(color.Blue)
}