1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
|
use dyn_clone::DynClone;
trait MyTrait: DynClone {
fn recite(&self);
}
impl MyTrait for String {
fn recite(&self) {
println!("{} ♫", self);
}
}
fn main() {
let line = "The slithy structs did gyre and gimble the namespace";
// Build a trait object holding a String.
// This requires String to implement MyTrait and std::clone::Clone.
let x: Box<dyn MyTrait> = Box::new(String::from(line));
x.recite();
// The type of x2 is a Box<dyn MyTrait> cloned from x.
let x2 = dyn_clone::clone_box(&*x);
x2.recite();
}
|
