Go type enums

enum.go

package main

import "fmt"

type AnEnum interface {
	IAmAnEnum()
}

type Text struct {
	text string
}

func (Text) IAmAnEnum() {}

type Number struct {
	number int
}

func (Number) IAmAnEnum() {}

type Error struct{}

func (Error) IAmAnEnum() {}

func GetData(enum AnEnum) {
	switch enum.(type) {
	case Text:
		fmt.Println("It was text: ", enum.(Text).text)

	case Number:
		fmt.Println("It was number: ", enum.(Number).number)

	case Error:
		fmt.Println("It was an error")
	}
}

func main() {
	var anEnum AnEnum = Text{"Hello"}
	GetData(anEnum)
	var anEnum2 AnEnum = Number{27}
	GetData(anEnum2)
	var anEnum3 AnEnum = Error{}
	GetData(anEnum3)
}