28 lines
569 B
Go
28 lines
569 B
Go
// staticchecking/dogsandrobots.go
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// (c)2017 MindView LLC: see Copyright.txt
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// We make no guarantees that this code is fit for any purpose.
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// Visit http://OnJava8.com for more book information.
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package main
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import "fmt"
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type Dog struct {}
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func (this Dog) talk() { fmt.Printf("woof!\n")}
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func (this Dog) reproduce() {}
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type Robot struct {}
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func (this Robot) talk() { fmt.Printf("Click!\n") }
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func (this Robot) oilChange() {}
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func speak(speaker interface { talk() }) {
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speaker.talk();
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}
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func main() {
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speak(Dog{})
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speak(Robot{})
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}
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/* Output:
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woof!
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Click!
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*/
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