1 files changed, 26 insertions, 0 deletions
diff --git a/tests/ui/nll/issue-27282-mutation-in-guard.rs b/tests/ui/nll/issue-27282-mutation-in-guard.rs
new file mode 100644
index 000000000..4f41fc23f
--- /dev/null
+++ b/tests/ui/nll/issue-27282-mutation-in-guard.rs
@@ -0,0 +1,26 @@
+#![feature(if_let_guard)]
+
+fn main() {
+    match Some(&4) {
+        None => {},
+        ref mut foo
+            if {
+                (|| { let bar = foo; bar.take() })();
+                //~^ ERROR cannot move out of `foo` in pattern guard
+                false
+            } => {},
+        Some(ref _s) => println!("Note this arm is bogus; the `Some` became `None` in the guard."),
+        _ => println!("Here is some supposedly unreachable code."),
+    }
+
+    match Some(&4) {
+        None => {},
+        ref mut foo
+            if let Some(()) = {
+                (|| { let bar = foo; bar.take() })();
+                //~^ ERROR cannot move out of `foo` in pattern guard
+                None
+            } => {},
+        Some(_) => {},
+    }
+}