1 files changed, 5 insertions, 0 deletions
diff --git a/lib/future.ml b/lib/future.ml
index 1e9cada51..d8f7b3a94 100644
--- a/lib/future.ml
+++ b/lib/future.ml
@@ -111,6 +111,11 @@ let purify f x =
     v
   with e -> let e = Errors.push e in !unfreeze state; raise e
 
+let transactify f x =
+  let state = !freeze () in
+  try f x
+  with e -> let e = Errors.push e in !unfreeze state; raise e
+
 let purify_future f x =
   match !x with
   | Val _ | Exn _ | Delegated | Dropped -> f x