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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/lint/unused-braces-while-let-with-mutable-value.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/lint/unused-braces-while-let-with-mutable-value.rs')
-rw-r--r--tests/ui/lint/unused-braces-while-let-with-mutable-value.rs12
1 files changed, 12 insertions, 0 deletions
diff --git a/tests/ui/lint/unused-braces-while-let-with-mutable-value.rs b/tests/ui/lint/unused-braces-while-let-with-mutable-value.rs
new file mode 100644
index 000000000..ac547293c
--- /dev/null
+++ b/tests/ui/lint/unused-braces-while-let-with-mutable-value.rs
@@ -0,0 +1,12 @@
+// check-pass
+
+#![deny(unused_braces)]
+
+fn main() {
+ let mut a = Some(3);
+ // Shouldn't warn below `a`.
+ while let Some(ref mut v) = {a} {
+ a.as_mut().map(|a| std::mem::swap(a, v));
+ break;
+ }
+}