Auto merge of #12322 - sanxiyn:expression-with-attribute, r=llogiq

Be careful with expressions with attributes

Fix #9949.

changelog: [`unused_unit`]: skip expressions with attributes

2 files changed, 14 insertions, 0 deletions

diff --git a/tests/ui/unused_unit.fixed b/tests/ui/unused_unit.fixed
index 16da9a25b2a..04fe2d3b7af 100644
--- a/tests/ui/unused_unit.fixed
+++ b/tests/ui/unused_unit.fixed
@@ -94,3 +94,10 @@ mod issue9748 {
         let _ = for<'a> |_: &'a u32| -> () {};
     }
 }
+
+mod issue9949 {
+    fn main() {
+        #[doc = "documentation"]
+        ()
+    }
+}
diff --git a/tests/ui/unused_unit.rs b/tests/ui/unused_unit.rs
index e374031436d..25c2ed59873 100644
--- a/tests/ui/unused_unit.rs
+++ b/tests/ui/unused_unit.rs
@@ -94,3 +94,10 @@ mod issue9748 {
         let _ = for<'a> |_: &'a u32| -> () {};
     }
 }
+
+mod issue9949 {
+    fn main() {
+        #[doc = "documentation"]
+        ()
+    }
+}