1 files changed, 15 insertions, 0 deletions
diff --git a/src/test/ui/dst/dst-bad-deep.rs b/src/test/ui/dst/dst-bad-deep.rs
new file mode 100644
index 000000000..a42672960
--- /dev/null
+++ b/src/test/ui/dst/dst-bad-deep.rs
@@ -0,0 +1,15 @@
+// Try to initialise a DST struct where the lost information is deeply nested.
+// This is an error because it requires an unsized rvalue. This is a problem
+// because it would require stack allocation of an unsized temporary (*g in the
+// test).
+
+struct Fat<T: ?Sized> {
+    ptr: T
+}
+
+pub fn main() {
+    let f: Fat<[isize; 3]> = Fat { ptr: [5, 6, 7] };
+    let g: &Fat<[isize]> = &f;
+    let h: &Fat<Fat<[isize]>> = &Fat { ptr: *g };
+    //~^ ERROR the size for values of type
+}