1 // Copyright 2012-2014 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution and at
3 // http://rust-lang.org/COPYRIGHT.
5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 // option. This file may not be copied, modified, or distributed
9 // except according to those terms.
14 #[derive(Copy, Clone, Debug)]
15 enum cat_type { tuxedo, tabby, tortoiseshell }
17 impl cmp
::PartialEq
for cat_type
{
18 fn eq(&self, other
: &cat_type
) -> bool
{
19 ((*self) as usize) == ((*other
) as usize)
21 fn ne(&self, other
: &cat_type
) -> bool { !(*self).eq(other) }
24 // Very silly -- this just returns the value of the name field
25 // for any isize value that's less than the meows field
27 // ok: T should be in scope when resolving the trait ref for map
29 // Yes, you can have negative meows
37 pub fn speak(&mut self) { self.meow(); }
39 pub fn eat(&mut self) -> bool
{
40 if self.how_hungry
> 0 {
41 println
!("OM NOM NOM");
45 println
!("Not hungry!");
49 fn len(&self) -> usize { self.meows as usize }
50 fn is_empty(&self) -> bool { self.meows == 0 }
51 fn clear(&mut self) {}
52 fn contains_key(&self, k
: &isize) -> bool { *k <= self.meows }
54 fn find(&self, k
: &isize) -> Option
<&T
> {
61 fn insert(&mut self, k
: isize, _
: T
) -> bool
{
66 fn find_mut(&mut self, _k
: &isize) -> Option
<&mut T
> { panic!() }
68 fn remove(&mut self, k
: &isize) -> bool
{
69 if self.find(k
).is_some() {
70 self.meows
-= *k
; true
76 fn pop(&mut self, _k
: &isize) -> Option
<T
> { panic!() }
78 fn swap(&mut self, _k
: isize, _v
: T
) -> Option
<T
> { panic!() }
82 pub fn get(&self, k
: &isize) -> &T
{
85 None
=> { panic!("epic fail"); }
89 pub fn new(in_x
: isize, in_y
: isize, in_name
: T
) -> cat
<T
> {
90 cat{meows: in_x, how_hungry: in_y, name: in_name }
97 println
!("Meow {}", self.meows
);
98 if self.meows
% 5 == 0 {
105 let mut nyan
: cat
<String
> = cat
::new(0, 2, "nyan".to_string());
106 for _
in 1_usize
..5 { nyan.speak(); }
107 assert_eq
!(*nyan
.find(&1).unwrap(), "nyan".to_string());
108 assert_eq
!(nyan
.find(&10), None
);
109 let mut spotty
: cat
<cat_type
> = cat
::new(2, 57, cat_type
::tuxedo
);
110 for _
in 0_usize
..6 { spotty.speak(); }
111 assert_eq
!(spotty
.len(), 8);
112 assert
!((spotty
.contains_key(&2)));
113 assert_eq
!(spotty
.get(&3), &cat_type
::tuxedo
);