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// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
trait noisy {
fn speak();
}
struct cat {
priv mut meows : uint,
mut how_hungry : int,
name : ~str,
}
pub 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 noisy for cat {
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(); //~ ERROR type `@noisy` does not implement any method in scope named `eat`
}
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