1 files changed, 22 insertions, 0 deletions
diff --git a/tests/ui/issue-16822.rs b/tests/ui/issue-16822.rs
new file mode 100644
index 000000000..c611c33af
--- /dev/null
+++ b/tests/ui/issue-16822.rs
@@ -0,0 +1,22 @@
+// run-pass
+// aux-build:issue-16822.rs
+
+extern crate issue_16822 as lib;
+
+use std::cell::RefCell;
+
+struct App {
+    i: isize
+}
+
+impl lib::Update for App {
+    fn update(&mut self) {
+        self.i += 1;
+    }
+}
+
+fn main(){
+    let app = App { i: 5 };
+    let window = lib::Window { data: RefCell::new(app) };
+    window.update(1);
+}