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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:13 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:13 +0000 |
commit | 218caa410aa38c29984be31a5229b9fa717560ee (patch) | |
tree | c54bd55eeb6e4c508940a30e94c0032fbd45d677 /tests/ui/issues/issue-19367.rs | |
parent | Releasing progress-linux version 1.67.1+dfsg1-1~progress7.99u1. (diff) | |
download | rustc-218caa410aa38c29984be31a5229b9fa717560ee.tar.xz rustc-218caa410aa38c29984be31a5229b9fa717560ee.zip |
Merging upstream version 1.68.2+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/ui/issues/issue-19367.rs')
-rw-r--r-- | tests/ui/issues/issue-19367.rs | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/tests/ui/issues/issue-19367.rs b/tests/ui/issues/issue-19367.rs new file mode 100644 index 000000000..0699533e7 --- /dev/null +++ b/tests/ui/issues/issue-19367.rs @@ -0,0 +1,32 @@ +// run-pass +struct S { + o: Option<String> +} + +// Make sure we don't reuse the same alloca when matching +// on field of struct or tuple which we reassign in the match body. + +fn main() { + let mut a = (0, Some("right".to_string())); + let b = match a.1 { + Some(v) => { + a.1 = Some("wrong".to_string()); + v + } + None => String::new() + }; + println!("{}", b); + assert_eq!(b, "right"); + + + let mut s = S{ o: Some("right".to_string()) }; + let b = match s.o { + Some(v) => { + s.o = Some("wrong".to_string()); + v + } + None => String::new(), + }; + println!("{}", b); + assert_eq!(b, "right"); +} |