Goroutine

Coroutine in Go

func integers() chan int {
    yield := make(chan int)
    count := 0
    go func() {
        for {
            yield <- count
            count++
        }
    }()
    return yield
}

func generateInteger(resume chan int) int {
  	return <-resume
}

func main() {
	resume := integers()  // prime the generator 
	fmt.Println(generateInteger(resume))  // 0
	fmt.Println(generateInteger(resume))  // 1
	fmt.Println(generateInteger(resume))  // 2 
}

References

• Google I/O 2012 - Go Concurrency Patterns

• Go Language Patterns - Coroutines