//@ run-pass #![allow(dead_code)] #![allow(unused_mut)] #![allow(non_camel_case_types)] //@ ignore-freebsd FIXME fails on BSD trait noisy { fn speak(&mut self); } struct cat { meows: usize, how_hungry: isize, name: String, } impl noisy for cat { fn speak(&mut self) { self.meow(); } } impl cat { pub fn eat(&mut self) -> bool { if self.how_hungry > 0 { println!("OM NOM NOM"); self.how_hungry -= 2; return true; } else { println!("Not hungry!"); return false; } } } impl cat { fn meow(&mut self) { println!("Meow"); self.meows += 1; if self.meows % 5 == 0 { self.how_hungry += 1; } } } fn cat(in_x : usize, in_y : isize, in_name: String) -> cat { cat { meows: in_x, how_hungry: in_y, name: in_name } } pub fn main() { let mut nyan = cat(0, 2, "nyan".to_string()); let mut nyan: &mut dyn noisy = &mut nyan; nyan.speak(); }