48 lines
925 B
Rust
48 lines
925 B
Rust
|
import to_str::*;
|
||
|
|
import to_str::to_str;
|
||
|
|
|
||
|
|
class cat implements to_str {
|
||
|
|
priv {
|
||
|
|
let mut meows : uint;
|
||
|
|
fn meow() {
|
||
|
|
#error("Meow");
|
||
|
|
self.meows += 1u;
|
||
|
|
if self.meows % 5u == 0u {
|
||
|
|
self.how_hungry += 1;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
let mut how_hungry : int;
|
||
|
|
let name : str;
|
||
|
|
|
||
|
|
new(in_x : uint, in_y : int, in_name: str)
|
||
|
|
{ self.meows = in_x; self.how_hungry = in_y; self.name = in_name; }
|
||
|
|
|
||
|
|
fn speak() { self.meow(); }
|
||
|
|
|
||
|
|
fn eat() -> bool {
|
||
|
|
if self.how_hungry > 0 {
|
||
|
|
#error("OM NOM NOM");
|
||
|
|
self.how_hungry -= 2;
|
||
|
|
ret true;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
#error("Not hungry!");
|
||
|
|
ret false;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
fn to_str() -> str { self.name }
|
||
|
|
}
|
||
|
|
|
||
|
|
fn print_out<T: to_str>(thing: T, expected: str) {
|
||
|
|
let actual = thing.to_str();
|
||
|
|
#debug("%s", actual);
|
||
|
|
assert(actual == expected);
|
||
|
|
}
|
||
|
|
|
||
|
|
fn main() {
|
||
|
|
let nyan : to_str = cat(0u, 2, "nyan") as to_str;
|
||
|
|
print_out(nyan, "nyan");
|
||
|
|
}
|