13 lines
279 B
Rust
13 lines
279 B
Rust
use core::any::*;
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use test::{black_box, Bencher};
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#[bench]
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fn bench_downcast_ref(b: &mut Bencher) {
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b.iter(|| {
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let mut x = 0;
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let mut y = &mut x as &mut dyn Any;
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black_box(&mut y);
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black_box(y.downcast_ref::<isize>() == Some(&0));
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});
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}
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