84 lines
2.2 KiB
Rust
84 lines
2.2 KiB
Rust
// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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// xfail-test
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// xfail-fast
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extern mod std;
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use std::oldmap::*;
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class cat : map<int, bool> {
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priv {
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// Yes, you can have negative meows
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let mut meows : int;
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fn meow() {
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self.meows += 1;
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error!("Meow %d", self.meows);
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if self.meows % 5 == 0 {
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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 : int, 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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fn size() -> uint { self.meows as uint }
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fn insert(+k: int, +v: bool) -> bool {
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if v { self.meows += k; } else { self.meows -= k; };
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true
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}
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fn contains_key(&&k: int) -> bool { k <= self.meows }
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fn get(&&k:int) -> bool { k <= self.meows }
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fn [](&&k:int) -> bool { k <= self.meows }
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fn find(&&k:int) -> Option<bool> { Some(self.get(k)) }
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fn remove(&&k:int) -> Option<bool> { self.meows -= k; Some(true) }
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fn each(f: &fn(&&int, &&bool) -> bool) {
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let mut n = int::abs(self.meows);
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while n > 0 {
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if !f(n, true) { break; }
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n -= 1;
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}
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}
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fn each_key(&&f: &fn(&&int) -> bool) {
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for self.each |k, _v| { if !f(k) { break; } again;};
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}
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fn each_value(&&f: &fn(&&bool) -> bool) {
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for self.each |_k, v| { if !f(v) { break; } again;};
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}
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fn clear() { }
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}
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pub fn main() {
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let nyan : cat = cat(0, 2, "nyan");
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for uint::range(1u, 5u) |_i| { nyan.speak(); }
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// cat returns true if uint input is greater than
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// the number of meows so far
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assert!((nyan.get(1)));
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assert!((!nyan.get(10)));
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}
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