mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-23 23:34:48 +00:00
18 lines
339 B
Rust
18 lines
339 B
Rust
#![feature(fn_traits)]
|
|
|
|
struct ClosureBox<'a> {
|
|
cl: Box<dyn FnMut() + 'a>,
|
|
}
|
|
|
|
fn box_it<'r>(x: Box<dyn FnMut() + 'r>) -> ClosureBox<'r> {
|
|
ClosureBox {cl: x}
|
|
}
|
|
|
|
fn main() {
|
|
let mut cl_box = {
|
|
let mut i = 3;
|
|
box_it(Box::new(|| i += 1)) //~ ERROR `i` does not live long enough
|
|
};
|
|
cl_box.cl.call_mut(());
|
|
}
|