1 files changed, 13 insertions, 0 deletions
diff --git a/src/test/ui/nll/issue-27282-move-ref-mut-into-guard.rs b/src/test/ui/nll/issue-27282-move-ref-mut-into-guard.rs
new file mode 100644
index 000000000..afa0ba780
--- /dev/null
+++ b/src/test/ui/nll/issue-27282-move-ref-mut-into-guard.rs
@@ -0,0 +1,13 @@
+// Issue 27282: Example 1: This sidesteps the AST checks disallowing
+// mutable borrows in match guards by hiding the mutable borrow in a
+// guard behind a move (of the ref mut pattern id) within a closure.
+
+fn main() {
+    match Some(&4) {
+        None => {},
+        ref mut foo
+            if { (|| { let bar = foo; bar.take() })(); false } => {},
+        //~^ ERROR cannot move out of `foo` in pattern guard [E0507]
+        Some(s) => std::process::exit(*s),
+    }
+}