blob: 70b1c4c9fbbd7c0197290a39992820a708aec463 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
|
// error-pattern: attempted access of field `eat` on type `@noisy`
trait noisy {
fn speak();
}
struct cat {
priv mut meows : uint,
mut how_hungry : int,
name : ~str,
}
impl cat {
fn eat() -> bool {
if self.how_hungry > 0 {
error!("OM NOM NOM");
self.how_hungry -= 2;
return true;
}
else {
error!("Not hungry!");
return false;
}
}
}
impl cat : noisy {
fn speak() { self.meow(); }
}
priv impl cat {
fn meow() {
error!("Meow");
self.meows += 1;
if self.meows % 5 == 0 {
self.how_hungry += 1;
}
}
}
fn cat(in_x : uint, in_y : int, in_name: ~str) -> cat {
cat {
meows: in_x,
how_hungry: in_y,
name: in_name
}
}
fn main() {
let nyan : noisy = cat(0, 2, ~"nyan") as noisy;
nyan.eat();
}
|
