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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:18:32 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:18:32 +0000 |
commit | 4547b622d8d29df964fa2914213088b148c498fc (patch) | |
tree | 9fc6b25f3c3add6b745be9a2400a6e96140046e9 /src/test/ui/dyn-star/dont-unsize-coerce-dyn-star.rs | |
parent | Releasing progress-linux version 1.66.0+dfsg1-1~progress7.99u1. (diff) | |
download | rustc-4547b622d8d29df964fa2914213088b148c498fc.tar.xz rustc-4547b622d8d29df964fa2914213088b148c498fc.zip |
Merging upstream version 1.67.1+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/test/ui/dyn-star/dont-unsize-coerce-dyn-star.rs')
-rw-r--r-- | src/test/ui/dyn-star/dont-unsize-coerce-dyn-star.rs | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/src/test/ui/dyn-star/dont-unsize-coerce-dyn-star.rs b/src/test/ui/dyn-star/dont-unsize-coerce-dyn-star.rs new file mode 100644 index 000000000..c12b16f16 --- /dev/null +++ b/src/test/ui/dyn-star/dont-unsize-coerce-dyn-star.rs @@ -0,0 +1,27 @@ +// run-pass +// check-run-results + +#![feature(dyn_star)] +//~^ WARN the feature `dyn_star` is incomplete and may not be safe to use and/or cause compiler crashes + +trait AddOne { + fn add1(&mut self) -> usize; +} + +impl AddOne for usize { + fn add1(&mut self) -> usize { + *self += 1; + *self + } +} + +fn add_one(i: &mut (dyn* AddOne + '_)) -> usize { + i.add1() +} + +fn main() { + let mut x = 42usize as dyn* AddOne; + + println!("{}", add_one(&mut x)); + println!("{}", add_one(&mut x)); +} |