48 lines
599 B
V
48 lines
599 B
V
struct Dog {
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breed string
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}
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struct Cat {
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breed string
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}
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fn (d Cat) name() string { return 'Cat' }
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fn (d Cat) speak() { println('meow') }
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fn (d Dog) speak() { println('woof') }
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fn (d Dog) name() string { return 'Dog'}
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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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name() string
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speak()
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}
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struct Foo {
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speaker Speaker
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}
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fn perform_speak(s Speaker) {
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s.speak()
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assert true
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name := s.name()
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assert name == 'Dog' || name == 'Cat'
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}
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fn test_perform_speak() {
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d := Dog{}
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perform_speak(d)
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cat := Cat{}
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perform_speak(cat)
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f := Foo {
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//speaker: d
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}
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}
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