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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
commit | 698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch) | |
tree | 173a775858bd501c378080a10dca74132f05bc50 /src/test/ui/issues/issue-19367.rs | |
parent | Initial commit. (diff) | |
download | rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip |
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | src/test/ui/issues/issue-19367.rs | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/src/test/ui/issues/issue-19367.rs b/src/test/ui/issues/issue-19367.rs new file mode 100644 index 000000000..0699533e7 --- /dev/null +++ b/src/test/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"); +} |