mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-01 23:12:02 +00:00
20 lines
382 B
Rust
20 lines
382 B
Rust
//@ run-pass
|
|
#![allow(non_camel_case_types)]
|
|
|
|
struct closure_box<'a> {
|
|
cl: Box<dyn FnMut() + 'a>,
|
|
}
|
|
|
|
fn box_it<'a>(x: Box<dyn FnMut() + 'a>) -> closure_box<'a> {
|
|
closure_box {cl: x}
|
|
}
|
|
|
|
fn call_static_closure(mut cl: closure_box<'static>) {
|
|
(cl.cl)();
|
|
}
|
|
|
|
pub fn main() {
|
|
let cl_box = box_it(Box::new(|| println!("Hello, world!")));
|
|
call_static_closure(cl_box);
|
|
}
|