Suggest `ref` for some patterns as a fallback

1 files changed, 12 insertions, 0 deletions

diff --git a/src/test/ui/pattern/move-ref-patterns/move-ref-patterns-default-binding-modes-fixable.fixed b/src/test/ui/pattern/move-ref-patterns/move-ref-patterns-default-binding-modes-fixable.fixed
new file mode 100644
index 00000000000..5f04fc83d37
--- /dev/null
+++ b/src/test/ui/pattern/move-ref-patterns/move-ref-patterns-default-binding-modes-fixable.fixed
@@ -0,0 +1,12 @@
+// run-rustfix
+#![allow(unused_variables)]
+fn main() {
+    struct U;
+
+    // A tuple is a "non-reference pattern".
+    // A `mut` binding pattern resets the binding mode to by-value.
+
+    let mut p = (U, U);
+    let (a, ref mut b) = &mut p;
+    //~^ ERROR cannot move out of a mutable reference
+}