a channel of functions

funchan.go

package main

import (
	"fmt"
	"math/rand"
	"time"
)

func main() {
	rand.Seed(time.Now().Unix())
	rand.Int31n(4)
	c := make(chan func() int)
	go func() {
		for {
			var fn func() int
			switch rand.Int31n(4) {
			case 0:
				fn = func() int {
					return 0
				}
			case 1:
				fn = func() int {
					return 1
				}
			case 2:
				fn = func() int {
					return 2
				}
			case 3:
				fn = func() int {
					return 3
				}
			}
			c <- fn

		}
	}()

	for fn := range c {
		fmt.Println(fn())
	}
}