1 files changed, 20 insertions, 0 deletions

diff --git a/src/test/ui/issues/issue-4759.rs b/src/test/ui/issues/issue-4759.rs
new file mode 100644
index 000000000..53785af09
--- /dev/null
+++ b/src/test/ui/issues/issue-4759.rs
@@ -0,0 +1,20 @@
+// run-pass
+// pretty-expanded FIXME #23616
+#![allow(non_shorthand_field_patterns)]
+
+#![feature(box_syntax)]
+
+struct T { a: Box<isize> }
+
+trait U {
+    fn f(self);
+}
+
+impl U for Box<isize> {
+    fn f(self) { }
+}
+
+pub fn main() {
+    let T { a: a } = T { a: box 0 };
+    a.f();
+}