| // run-pass | |
| #![feature(box_syntax)] | |
| struct Dog { | |
| name : String | |
| } | |
| trait Barks { | |
| fn bark(&self) -> String; | |
| } | |
| impl Barks for Dog { | |
| fn bark(&self) -> String { | |
| return format!("woof! (I'm {})", self.name); | |
| } | |
| } | |
| pub fn main() { | |
| let snoopy = box Dog{name: "snoopy".to_string()}; | |
| let bubbles = box Dog{name: "bubbles".to_string()}; | |
| let barker = [snoopy as Box<dyn Barks>, bubbles as Box<dyn Barks>]; | |
| for pup in &barker { | |
| println!("{}", pup.bark()); | |
| } | |
| } |