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Update src/test/ui/unsized/issue-97732.rs

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Co-authored-by: Eduard-Mihai Burtescu <edy.burt@gmail.com>
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Chase Wilson 2022-06-06 10:19:33 -05:00 committed by GitHub
parent 857453d36c
commit 10336cf162
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1 changed files with 8 additions and 3 deletions
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11
src/test/ui/unsized/issue-97732.rs
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@ -15,9 +15,14 @@ impl<S: ?Sized, T: ?Sized> CoerceUnsized<BoxWithZstTail<T>> for BoxWithZstTail<S
}
pub fn noop_dyn_upcast_with_zst_tail(
b: BoxWithZstTail<dyn Send + Sync>,
) -> BoxWithZstTail<dyn Send> {
b: BoxWithZstTail<dyn ToString + Send>,
) -> BoxWithZstTail<dyn ToString> {
b
}
fn main() {}
fn main() {
let original = "foo";
let boxed = BoxWithZstTail(Box::new(original) as Box<dyn ToString + Send>, ());
let noop_upcasted = noop_dyn_upcast_with_zst_tail(boxed);
assert_eq!(original, noop_upcasted.0.to_string());
}