1 files changed, 12 insertions, 0 deletions
diff --git a/third_party/rust/syn/tests/test_parse_stream.rs b/third_party/rust/syn/tests/test_parse_stream.rs
new file mode 100644
index 0000000000..76bd065777
--- /dev/null
+++ b/third_party/rust/syn/tests/test_parse_stream.rs
@@ -0,0 +1,12 @@
+use syn::ext::IdentExt;
+use syn::parse::ParseStream;
+use syn::{Ident, Token};
+
+#[test]
+fn test_peek() {
+    let _ = |input: ParseStream| {
+        let _ = input.peek(Ident);
+        let _ = input.peek(Ident::peek_any);
+        let _ = input.peek(Token![::]);
+    };
+}