blob: 408d8d866d862efdfb7989f471d0be0e00aa6dfb (
plain)
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
27
28
29
30
31
32
|
// run-pass
#![feature(box_syntax)]
trait T {
fn print(&self);
}
#[derive(Debug)]
struct S {
s: isize,
}
impl T for S {
fn print(&self) {
println!("{:?}", self);
}
}
fn print_t(t: &dyn T) {
t.print();
}
fn print_s(s: &S) {
s.print();
}
pub fn main() {
let s: Box<S> = box S { s: 5 };
print_s(&*s);
let t: Box<dyn T> = s as Box<dyn T>;
print_t(&*t);
}
|
