1 files changed, 14 insertions, 0 deletions
diff --git a/kernel/nativelambda.ml b/kernel/nativelambda.ml
index 2ca2747994..f530f6e2ec 100644
--- a/kernel/nativelambda.ml
+++ b/kernel/nativelambda.ml
@@ -66,6 +66,20 @@ let decompose_Llam lam =
   | Llam(ids,body) -> ids, body
   | _ -> [||], lam
 
+let rec decompose_Llam_Llet lam =
+  match lam with
+  | Llam(ids,body) ->
+      let vars, body = decompose_Llam_Llet body in
+      Array.fold_right (fun x l -> (x, None) :: l) ids vars, body
+  | Llet(id,def,body) ->
+      let vars, body = decompose_Llam_Llet body in
+      (id,Some def) :: vars, body
+  | _ -> [], lam
+
+let decompose_Llam_Llet lam =
+  let vars, body = decompose_Llam_Llet lam in
+  Array.of_list vars, body
+
 (*s Operators on substitution *)
 let subst_id = subs_id 0
 let lift = subs_lift