1 files changed, 24 insertions, 0 deletions
diff --git a/third_party/rust/zerocopy/tests/ui-nightly/transmute-mut-dst-not-frombytes.rs b/third_party/rust/zerocopy/tests/ui-nightly/transmute-mut-dst-not-frombytes.rs
new file mode 100644
index 0000000000..102fcedc9a
--- /dev/null
+++ b/third_party/rust/zerocopy/tests/ui-nightly/transmute-mut-dst-not-frombytes.rs
@@ -0,0 +1,24 @@
+// Copyright 2023 The Fuchsia Authors
+//
+// Licensed under a BSD-style license <LICENSE-BSD>, Apache License, Version 2.0
+// <LICENSE-APACHE or https://www.apache.org/licenses/LICENSE-2.0>, or the MIT
+// license <LICENSE-MIT or https://opensource.org/licenses/MIT>, at your option.
+// This file may not be copied, modified, or distributed except according to
+// those terms.
+
+extern crate zerocopy;
+
+use zerocopy::transmute_mut;
+
+fn main() {}
+
+#[derive(zerocopy::FromZeroes, zerocopy::FromBytes, zerocopy::AsBytes)]
+#[repr(C)]
+struct Src;
+
+#[derive(zerocopy::AsBytes)]
+#[repr(C)]
+struct Dst;
+
+// `transmute_mut` requires that the destination type implements `FromBytes`
+const DST_NOT_FROM_BYTES: &mut Dst = transmute_mut!(&mut Src);