33 lines
350 B
V
33 lines
350 B
V
struct Dog {
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breed string
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}
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fn (d Dog) speak() {
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println('dog.speak()')
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}
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fn (d Dog) name() string {
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return 'old gray'
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}
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interface Speaker {
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name() string
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speak()
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}
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interface Speak2er {
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speak()
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name() string
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}
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fn perform_speak(s Speaker) bool {
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s.speak()
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return true
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}
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fn test_perform_speak() {
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d := Dog{}
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assert perform_speak(d)
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}
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