rust/src/test/run-pass/class-attributes-2.rs

struct cat {
  let name: ~str;
  #[cat_maker]
  /**
     Maybe it should technically be a kitten_maker.
  */
  new(name: ~str) { self.name = name; }
  #[cat_dropper]
  /**
     Actually, cats don't always land on their feet when you drop them.
  */
  drop { error!("%s landed on hir feet", self.name); }
}

fn main() {
  let _kitty = cat(~"Spotty");
}