[rustc.git] / src / libcore / benches / any.rs

use core::any::*;
use test::{black_box, Bencher};

#[bench]
fn bench_downcast_ref(b: &mut Bencher) {
    b.iter(|| {
        let mut x = 0;
        let mut y = &mut x as &mut dyn Any;
        black_box(&mut y);
        black_box(y.downcast_ref::<isize>() == Some(&0));
    });
}
Commit	Line	Data
8bb4bdeb	1	use core::any::*;
60c5eb7d	2	use test::{black_box, Bencher};
1a4d82fc	3
8bb4bdeb XL	4	#[bench]
	5	fn bench_downcast_ref(b: &mut Bencher) {
	6	b.iter(\|\| {
	7	let mut x = 0;
b7449926	8	let mut y = &mut x as &mut dyn Any;
8bb4bdeb XL	9	black_box(&mut y);
	10	black_box(y.downcast_ref::<isize>() == Some(&0));
	11	});
223e47cc	12	}