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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:19:13 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:19:13 +0000
commit218caa410aa38c29984be31a5229b9fa717560ee (patch)
treec54bd55eeb6e4c508940a30e94c0032fbd45d677 /tests/ui/issues/issue-19367.rs
parentReleasing progress-linux version 1.67.1+dfsg1-1~progress7.99u1. (diff)
downloadrustc-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.rs32
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");
+}