#![warn(clippy::all)]
#![allow(
- clippy::blacklisted_name,
+ clippy::disallowed_names,
clippy::no_effect,
clippy::redundant_clone,
redundant_semicolons,
c.0 = a;
a = t;
}
+
+fn issue_8154() {
+ struct S1 {
+ x: i32,
+ y: i32,
+ }
+ struct S2(S1);
+ struct S3<'a, 'b>(&'a mut &'b mut S1);
+
+ impl std::ops::Deref for S2 {
+ type Target = S1;
+ fn deref(&self) -> &Self::Target {
+ &self.0
+ }
+ }
+ impl std::ops::DerefMut for S2 {
+ fn deref_mut(&mut self) -> &mut Self::Target {
+ &mut self.0
+ }
+ }
+
+ // Don't lint. `s.0` is mutably borrowed by `s.x` and `s.y` via the deref impl.
+ let mut s = S2(S1 { x: 0, y: 0 });
+ let t = s.x;
+ s.x = s.y;
+ s.y = t;
+
+ // Accessing through a mutable reference is fine
+ let mut s = S1 { x: 0, y: 0 };
+ let mut s = &mut s;
+ let s = S3(&mut s);
+ let t = s.0.x;
+ s.0.x = s.0.y;
+ s.0.y = t;
+}