start_and_stop.go

package main

import (
	"fmt"
	"time"
)

func Start() (f Foo) {
	fmt.Println("start with type")
	return
}

type Foo struct{}

func (f Foo) Stop() {
	fmt.Println("stop with type")
}

func StartAndStop() func() {
	fmt.Println("start with closure")

	return func() {
		fmt.Println("stop with closure")
	}
}

func main() {
	defer Start().Stop()
	defer StartAndStop()()

	f := Start()
	defer f.Stop()

	time.Sleep(2 * time.Second)
}