Interfaces are fun

sometypes.go

// A test of the interface types and how they may be passed
package main
import "fmt"

type A interface {
	Action()
}


type C interface {
	A
	isOk() (bool)
}

	
type B struct {
	okness bool
}

 
func (* B) Action() {
	fmt.Println("HELLO")
}


func (p *B) isOk() (bool) {
	return p.okness
}


func callToAction (p C) {
	p.Action()
}


func main () {
	b := B{false}
	if b.isOk() {
		callToAction(&b)
	} else {
		println("This is not ok")
	}
}