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| 1 | trait EventReceiverObject { | |
| 2 | fn event(&self, e: i32); | |
| 3 | } | |
| 4 | ||
| 5 | struct MyObject {} | |
| 6 | ||
| 7 | impl EventReceiverObject for MyObject { | |
| 8 | fn event(&self, e: i32) { | |
| 9 | println!("Handling event {}", e); | |
| 10 | } | |
| 11 | } | |
| 12 | ||
| 13 | fn main() { | |
| 14 | use std::rc::Rc; | |
| 15 | let a = Rc::new(MyObject {}); | |
| 16 | let b: Rc<dyn EventReceiverObject> = a; | |
| 17 | ||
| 18 | println!("Hello, world!"); | |
| 19 | } |
