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, 18 insertions, 0 deletions

diff --git a/src/test/ui/nll/maybe-initialized-drop-uninitialized.rs b/src/test/ui/nll/maybe-initialized-drop-uninitialized.rs
new file mode 100644
index 000000000..32e07cd14
--- /dev/null
+++ b/src/test/ui/nll/maybe-initialized-drop-uninitialized.rs
@@ -0,0 +1,18 @@
+// check-pass
+
+#![allow(warnings)]
+
+struct Wrap<'p> { p: &'p mut i32 }
+
+impl<'p> Drop for Wrap<'p> {
+    fn drop(&mut self) {
+        *self.p += 1;
+    }
+}
+
+fn main() {
+    let mut x = 0;
+    let wrap = Wrap { p: &mut x };
+    std::mem::drop(wrap);
+    x = 1; // OK, drop is inert
+}