1 files changed, 6 insertions, 0 deletions
diff --git a/rust/syn/sealed.rs b/rust/syn/sealed.rs
new file mode 100644
index 000000000000..541df9623755
--- /dev/null
+++ b/rust/syn/sealed.rs
@@ -0,0 +1,6 @@
+// SPDX-License-Identifier: Apache-2.0 OR MIT
+
+#[cfg(feature = "parsing")]
+pub(crate) mod lookahead {
+    pub trait Sealed: Copy {}
+}