Assert impl Send+Sync for Graph and Txn (#153)

Author: knutwalker

lib/src/graph.rs

@@ -92,3 +92,8 @@ impl Graph {
         q.execute(db, self.config.fetch_size, connection).await
     }
 }
+
+const _: () = {
+    const fn assert_send_sync<T: ?Sized + Send + Sync>() {}
+    assert_send_sync::<Graph>();
+};

lib/src/txn.rs

@@ -79,6 +79,11 @@ impl Txn {
     }
 }
 
+const _: () = {
+    const fn assert_send_sync<T: ?Sized + Send + Sync>() {}
+    assert_send_sync::<Txn>();
+};
+
 pub trait TransactionHandle: private::Handle {}
 
 impl TransactionHandle for Txn {}