70 lines
1.7 KiB
Rust
70 lines
1.7 KiB
Rust
// xfail-fast
|
|
use std;
|
|
import std::map::*;
|
|
|
|
class cat implements map<int, bool> {
|
|
priv {
|
|
// Yes, you can have negative meows
|
|
let mut meows : int;
|
|
fn meow() {
|
|
self.meows += 1;
|
|
#error("Meow %d", self.meows);
|
|
if self.meows % 5 == 0 {
|
|
self.how_hungry += 1;
|
|
}
|
|
}
|
|
}
|
|
|
|
let mut how_hungry : int;
|
|
let name : str;
|
|
|
|
new(in_x : int, 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 size() -> uint { self.meows as uint }
|
|
fn insert(&&k: int, &&v: bool) -> bool {
|
|
if v { self.meows += k; } else { self.meows -= k; };
|
|
true
|
|
}
|
|
fn contains_key(&&k: int) -> bool { k <= self.meows }
|
|
fn get(&&k:int) -> bool { k <= self.meows }
|
|
fn find(&&k:int) -> option<bool> { some(self.get(k)) }
|
|
fn remove(&&k:int) -> option<bool> { self.meows -= k; some(true) }
|
|
fn each(f: fn(&&int, &&bool) -> bool) {
|
|
let mut n = int::abs(self.meows);
|
|
while n > 0 {
|
|
if !f(n, true) { break; }
|
|
n -= 1;
|
|
}
|
|
}
|
|
fn each_key(&&f: fn(&&int) -> bool) {
|
|
for self.each {|k, _v| if !f(k) { break; } cont;};
|
|
}
|
|
fn each_value(&&f: fn(&&bool) -> bool) {
|
|
for self.each {|_k, v| if !f(v) { break; } cont;};
|
|
}
|
|
}
|
|
|
|
fn main() {
|
|
let nyan : cat = cat(0, 2, "nyan");
|
|
for uint::range(1u, 5u) {|_i| nyan.speak(); }
|
|
// cat returns true if uint input is greater than
|
|
// the number of meows so far
|
|
assert(nyan.get(1));
|
|
assert(!nyan.get(10));
|
|
}
|