From abed266f42c25bf77c5c4bfbff0450abe9680e7a Mon Sep 17 00:00:00 2001
From: Claudio Sacerdoti Coen <claudio.sacerdoticoen@unibo.it>
Date: Thu, 30 Aug 2012 08:22:05 +0000
Subject: [PATCH] Composite coercions are now extracted too.

---
 matita/components/grafite_engine/grafiteEngine.ml | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/matita/components/grafite_engine/grafiteEngine.ml b/matita/components/grafite_engine/grafiteEngine.ml
index d61ad6103..589169840 100644
--- a/matita/components/grafite_engine/grafiteEngine.ml
+++ b/matita/components/grafite_engine/grafiteEngine.ml
@@ -776,6 +776,13 @@ let rec eval_ncommand ~include_paths opts status (text,prefix_len,cmd) =
                      basic_eval_and_record_ncoercion_from_t_cpos_arity 
                       status (name,true,t,cpos,arity) in
                  let aliases = GrafiteDisambiguate.aliases_for_objs status nuris in
+                 let status =
+                  List.fold_left
+                   (fun status uri ->
+                     let obj = NCicEnvironment.get_checked_obj status uri in
+                      eval_extract_obj status obj
+                   ) status nuris
+                 in
                   eval_alias status (mode,aliases)
                with MultiPassDisambiguator.DisambiguationError _-> 
                  HLog.warn ("error in generating coercion: "^name);
-- 
2.39.2