Great speed-up in alias_diff (about 3x).

[helm.git] / helm / matita / matitaSync.ml

diff --git a/helm/matita/matitaSync.ml b/helm/matita/matitaSync.ml
index 4d549fadefe449220a0341fed35b0f115a2f3f86..6662b7d6efeb7f410734e510af80bf3332c583d3 100644 (file)
--- a/helm/matita/matitaSync.ml
+++ b/helm/matita/matitaSync.ml
@@ -30,22 +30,22 @@ open MatitaTypes
 let alias_diff ~from status = 
   let module Map = DisambiguateTypes.Environment in
   Map.fold
-    (fun domain_item codomain_item acc ->
-       if not (Map.mem domain_item from.aliases) then
-         Map.add domain_item codomain_item acc
-       else
-         begin
-           try 
-            let description1 = fst(Map.find domain_item from.aliases) in
-            let description2 = fst(Map.find domain_item status.aliases) in
-            if description1 <> description2 then
-              Map.add domain_item codomain_item acc
-            else
-              acc
-           with Not_found -> acc
-         end)
+    (fun domain_item (description1,_ as codomain_item) acc ->
+      try
+       let description2,_ = Map.find domain_item from.aliases in
+        if description1 <> description2 then
+          Map.add domain_item codomain_item acc
+        else
+          acc
+      with
+       Not_found ->
+         Map.add domain_item codomain_item acc)
     status.aliases Map.empty
 
+let alias_diff =
+ let profiler = CicUtil.profile "accusato" in
+ fun ~from status -> profiler.CicUtil.profile (alias_diff ~from) status
+
 let set_proof_aliases status aliases =
  let new_status = { status with aliases = aliases } in
  let diff = alias_diff ~from:status new_status in