1 files changed, 47 insertions, 0 deletions
diff --git a/tests/ui/drop/trait-object-drop-10802.rs b/tests/ui/drop/trait-object-drop-10802.rs
new file mode 100644
index 00000000000..a8a955ad833
--- /dev/null
+++ b/tests/ui/drop/trait-object-drop-10802.rs
@@ -0,0 +1,47 @@
+//! Regression test for https://github.com/rust-lang/rust/issues/10802
+
+//@ run-pass
+#![allow(dead_code)]
+
+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::new(DroppableStruct);
+        let _a = Whatever::new(Box::new(f) as Box<dyn MyTrait>);
+    }
+    assert!(unsafe { DROPPED });
+    unsafe { DROPPED = false; }
+    {
+        let f: Box<_> = Box::new(DroppableEnum::DroppableVariant1);
+        let _a = Whatever::new(Box::new(f) as Box<dyn MyTrait>);
+    }
+    assert!(unsafe { DROPPED });
+}