X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matita%2Fcomponents%2Fgrafite_engine%2FnCicCoercDeclaration.ml;h=74a7eb6a4a4867962ebb72ea78708ec4e0ea64d3;hb=f9abd21eb0d26cf9b632af4df819225be4d091e3;hp=f1b051d46f229915a02bdfe15daaf9f238a0a3d0;hpb=894d518aa760c9f816ddb0dc2b3fa88e1fe20a94;p=helm.git

diff --git a/matita/components/grafite_engine/nCicCoercDeclaration.ml b/matita/components/grafite_engine/nCicCoercDeclaration.ml
index f1b051d46..74a7eb6a4 100644
--- a/matita/components/grafite_engine/nCicCoercDeclaration.ml
+++ b/matita/components/grafite_engine/nCicCoercDeclaration.ml
@@ -133,17 +133,20 @@ let src_tgt_cpos_arity_of_ty_id_src_tgt status ty id src tgt =
            (try 
             let metasenv,subst,status,src =
               GrafiteDisambiguate.disambiguate_nterm 
-                status None ctx [] [] ("",0,src) in
+                status `XTSort ctx [] [] ("",0,src) in
             let src = NCicUntrusted.apply_subst status subst [] src in
             (* CHECK that the declared pattern matches the abstraction *)
             let _ = NCicUnification.unify status metasenv subst ctx ty src in
             let src = cleanup_skel status () src in
             status, src, cpos
            with 
-           | NCicUnification.UnificationFailure _
-           | NCicUnification.Uncertain _
-           | MultiPassDisambiguator.DisambiguationError _ ->
-               raise (GrafiteTypes.Command_error "bad source pattern"))
+           | NCicUnification.UnificationFailure msg
+           | NCicUnification.Uncertain msg ->
+               raise (GrafiteTypes.Command_error ("bad source pattern: " ^ 
+Lazy.force msg))
+            | MultiPassDisambiguator.DisambiguationError _ ->
+               raise (GrafiteTypes.Command_error ("bad source pattern: 
+disambiguation error")))
       | _ -> assert false
     in
       aux 0 [] ty
@@ -151,7 +154,7 @@ let src_tgt_cpos_arity_of_ty_id_src_tgt status ty id src tgt =
   let status, tgt, arity = 
     let metasenv,subst,status,tgt =
       GrafiteDisambiguate.disambiguate_nterm 
-        status None [] [] [] ("",0,tgt) in
+        status `XTSort [] [] [] ("",0,tgt) in
     let tgt = NCicUntrusted.apply_subst status subst [] tgt in
     (* CHECK che sia unificabile mancante *)
     let rec count_prod = function
@@ -259,11 +262,11 @@ let close_graph name t s d to_s from_d p a status =
 ;;
 
 (* idempotent *)
-let basic_index_ncoercion (name,t,s,d,position,arity) status =
+let basic_index_ncoercion (name,_compose,t,s,d,position,arity) status =
   NCicCoercion.index_coercion status name t s d arity position
 ;;
 
-let basic_eval_ncoercion (name,t,s,d,p,a) status =
+let basic_eval_ncoercion (name,compose,t,s,d,p,a) status =
   let to_s = 
     NCicCoercion.look_for_coercion status [] [] [] skel_dummy s
   in
@@ -271,10 +274,11 @@ let basic_eval_ncoercion (name,t,s,d,p,a) status =
     NCicCoercion.look_for_coercion status [] [] [] d skel_dummy
   in
   let status = NCicCoercion.index_coercion status name t s d a p in
-  let composites = close_graph name t s d to_s from_d p a status in
+  let composites =
+   if compose then close_graph name t s d to_s from_d p a status else [] in
   List.fold_left 
     (fun (uris,infos,st) ((uri,_,_,_,_ as obj),name,t,s,d,p,a) -> 
-      let info = name,t,s,d,p,a in
+      let info = name,compose,t,s,d,p,a in
       let st = NCicLibrary.add_obj st obj in
       let st = basic_index_ncoercion info st in
       uri::uris, info::infos, st)
@@ -282,11 +286,11 @@ let basic_eval_ncoercion (name,t,s,d,p,a) status =
 ;;
 
 let record_ncoercion =
- let aux (name,t,s,d,p,a) ~refresh_uri_in_term =
+ let aux (name,compose,t,s,d,p,a) ~refresh_uri_in_term =
   let t = refresh_uri_in_term t in
   let s = refresh_uri_in_term s in
   let d = refresh_uri_in_term d in
-   basic_index_ncoercion (name,t,s,d,p,a)
+   basic_index_ncoercion (name,compose,t,s,d,p,a)
  in
  let aux_l l ~refresh_uri_in_universe ~refresh_uri_in_term
   ~refresh_uri_in_reference ~alias_only status
@@ -305,29 +309,29 @@ let basic_eval_and_record_ncoercion infos status =
 ;;
 
 let basic_eval_and_record_ncoercion_from_t_cpos_arity 
-      status (name,t,cpos,arity) 
+      status (name,compose,t,cpos,arity) 
 =
   let ty = NCicTypeChecker.typeof status ~subst:[] ~metasenv:[] [] t in
   let src,tgt = src_tgt_of_ty_cpos_arity status ty cpos arity in
   let status, uris =
-   basic_eval_and_record_ncoercion (name,t,src,tgt,cpos,arity) status
+   basic_eval_and_record_ncoercion (name,compose,t,src,tgt,cpos,arity) status
   in
    status,uris
 ;;
 
-let eval_ncoercion (status: #GrafiteTypes.status) name t ty (id,src) tgt = 
+let eval_ncoercion (status: #GrafiteTypes.status) name compose t ty (id,src) tgt = 
  let metasenv,subst,status,ty =
-  GrafiteDisambiguate.disambiguate_nterm status None [] [] [] ("",0,ty) in
+  GrafiteDisambiguate.disambiguate_nterm status `XTSort [] [] [] ("",0,ty) in
  assert (metasenv=[]);
  let ty = NCicUntrusted.apply_subst status subst [] ty in
  let metasenv,subst,status,t =
-  GrafiteDisambiguate.disambiguate_nterm status (Some ty) [] [] [] ("",0,t) in
+  GrafiteDisambiguate.disambiguate_nterm status (`XTSome ty) [] [] [] ("",0,t) in
  assert (metasenv=[]);
  let t = NCicUntrusted.apply_subst status subst [] t in
  let status, src, tgt, cpos, arity = 
    src_tgt_cpos_arity_of_ty_id_src_tgt status ty id src tgt in
  let status, uris =
-  basic_eval_and_record_ncoercion (name,t,src,tgt,cpos,arity) status
+  basic_eval_and_record_ncoercion (name,compose,t,src,tgt,cpos,arity) status
  in
   status,uris
 ;;