1 files changed, 46 insertions, 0 deletions

diff --git a/src/test/ui/issues/issue-10802.rs b/src/test/ui/issues/issue-10802.rs
new file mode 100644
index 000000000..f1d6b37a6
--- /dev/null
+++ b/src/test/ui/issues/issue-10802.rs
@@ -0,0 +1,46 @@
+// run-pass
+#![allow(dead_code)]
+#![feature(box_syntax)]
+
+struct DroppableStruct;
+enum DroppableEnum {
+    DroppableVariant1, DroppableVariant2
+}
+
+static mut DROPPED: bool = false;
+
+impl Drop for DroppableStruct {
+    fn drop(&mut self) {
+        unsafe { DROPPED = true; }
+    }
+}
+impl Drop for DroppableEnum {
+    fn drop(&mut self) {
+        unsafe { DROPPED = true; }
+    }
+}
+
+trait MyTrait { fn dummy(&self) { } }
+impl MyTrait for Box<DroppableStruct> {}
+impl MyTrait for Box<DroppableEnum> {}
+
+struct Whatever { w: Box<dyn MyTrait+'static> }
+impl  Whatever {
+    fn new(w: Box<dyn MyTrait+'static>) -> Whatever {
+        Whatever { w: w }
+    }
+}
+
+fn main() {
+    {
+        let f: Box<_> = box DroppableStruct;
+        let _a = Whatever::new(box f as Box<dyn MyTrait>);
+    }
+    assert!(unsafe { DROPPED });
+    unsafe { DROPPED = false; }
+    {
+        let f: Box<_> = box DroppableEnum::DroppableVariant1;
+        let _a = Whatever::new(box f as Box<dyn MyTrait>);
+    }
+    assert!(unsafe { DROPPED });
+}