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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-30 03:59:35 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-30 03:59:35 +0000 |
commit | d1b2d29528b7794b41e66fc2136e395a02f8529b (patch) | |
tree | a4a17504b260206dec3cf55b2dca82929a348ac2 /tests/ui/traits/new-solver/normalize-unsize-rhs.rs | |
parent | Releasing progress-linux version 1.72.1+dfsg1-1~progress7.99u1. (diff) | |
download | rustc-d1b2d29528b7794b41e66fc2136e395a02f8529b.tar.xz rustc-d1b2d29528b7794b41e66fc2136e395a02f8529b.zip |
Merging upstream version 1.73.0+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/ui/traits/new-solver/normalize-unsize-rhs.rs')
-rw-r--r-- | tests/ui/traits/new-solver/normalize-unsize-rhs.rs | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/tests/ui/traits/new-solver/normalize-unsize-rhs.rs b/tests/ui/traits/new-solver/normalize-unsize-rhs.rs new file mode 100644 index 000000000..a398ab4f2 --- /dev/null +++ b/tests/ui/traits/new-solver/normalize-unsize-rhs.rs @@ -0,0 +1,23 @@ +// compile-flags: -Ztrait-solver=next +// check-pass + +#![feature(trait_upcasting)] + +trait A {} +trait B: A {} + +impl A for usize {} +impl B for usize {} + +trait Mirror { + type Assoc: ?Sized; +} + +impl<T: ?Sized> Mirror for T { + type Assoc = T; +} + +fn main() { + let x = Box::new(1usize) as Box<<dyn B as Mirror>::Assoc>; + let y = x as Box<<dyn A as Mirror>::Assoc>; +} |