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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:02:58 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:02:58 +0000
commit698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch)
tree173a775858bd501c378080a10dca74132f05bc50 /src/test/ui/lint/unused-braces-while-let-with-mutable-value.rs
parentInitial commit. (diff)
downloadrustc-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 'src/test/ui/lint/unused-braces-while-let-with-mutable-value.rs')
-rw-r--r--src/test/ui/lint/unused-braces-while-let-with-mutable-value.rs12
1 files changed, 12 insertions, 0 deletions
diff --git a/src/test/ui/lint/unused-braces-while-let-with-mutable-value.rs b/src/test/ui/lint/unused-braces-while-let-with-mutable-value.rs
new file mode 100644
index 000000000..ac547293c
--- /dev/null
+++ b/src/test/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;
+ }
+}