41 lines
725 B
Rust
41 lines
725 B
Rust
trait noisy {
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fn speak();
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}
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class cat : noisy {
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priv {
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let mut meows : uint;
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fn meow() {
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error!{"Meow"};
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self.meows += 1u;
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if self.meows % 5u == 0u {
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self.how_hungry += 1;
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}
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}
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}
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let mut how_hungry : int;
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let name : ~str;
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new(in_x : uint, in_y : int, in_name: ~str)
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{ self.meows = in_x; self.how_hungry = in_y; self.name = in_name; }
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fn speak() { self.meow(); }
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fn eat() -> bool {
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if self.how_hungry > 0 {
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error!{"OM NOM NOM"};
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self.how_hungry -= 2;
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return true;
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}
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else {
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error!{"Not hungry!"};
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return false;
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}
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}
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}
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fn main() {
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let nyan : noisy = cat(0u, 2, ~"nyan") as noisy;
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nyan.speak();
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} |