Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 20 insertions, 0 deletions

diff --git a/src/test/ui/moves/moves-based-on-type-cyclic-types-issue-4821.rs b/src/test/ui/moves/moves-based-on-type-cyclic-types-issue-4821.rs
new file mode 100644
index 000000000..4417fb926
--- /dev/null
+++ b/src/test/ui/moves/moves-based-on-type-cyclic-types-issue-4821.rs
@@ -0,0 +1,20 @@
+// Test for a subtle failure computing kinds of cyclic types, in which
+// temporary kinds wound up being stored in a cache and used later.
+// See rustc::ty::type_contents() for more information.
+
+
+struct List { key: isize, next: Option<Box<List>> }
+
+fn foo(node: Box<List>) -> isize {
+    let r = match node.next {
+        Some(right) => consume(right),
+        None => 0
+    };
+    consume(node) + r //~ ERROR use of partially moved value: `node`
+}
+
+fn consume(v: Box<List>) -> isize {
+    v.key
+}
+
+fn main() {}