OnJava8-Examples/staticchecking/dogsandrobots.go
2015-12-15 11:47:04 -08:00

24 lines
560 B
Go

// staticchecking/dogsandrobots.go
// (c)2016 MindView LLC: see Copyright.txt
// We make no guarantees that this code is fit for any purpose.
// Visit http://mindviewinc.com/Books/OnJava/ for more book information.
package main
import "fmt"
type Dog struct {}
func (this Dog) talk() { fmt.Printf("woof!\n")}
func (this Dog) reproduce() {}
type Robot struct {}
func (this Robot) talk() { fmt.Printf("Click!\n") }
func (this Robot) oilChange() {}
func speak(speaker interface { talk() }) {
speaker.talk();
}
func main() {
speak(Dog{})
speak(Robot{})
}