Coercion hiding implemented. Notes:

[helm.git] / helm / software / components / ng_cic_content / nTermCicContent.ml

diff --git a/helm/software/components/ng_cic_content/nTermCicContent.ml b/helm/software/components/ng_cic_content/nTermCicContent.ml
index 01e6fd48255fc97039a06407a5d03d6088951664..8984a4829547fc241d94a2ce90487b7565b3cbf8 100644 (file)
--- a/helm/software/components/ng_cic_content/nTermCicContent.ml
+++ b/helm/software/components/ng_cic_content/nTermCicContent.ml
@@ -59,10 +59,10 @@ let idref register_ref =
 ;;
 
 (* CODICE c&p da NCicPp *)
-let nast_of_cic0
+let nast_of_cic0 status
  ~(idref:
     ?reference:NReference.reference -> CicNotationPt.term -> CicNotationPt.term)
- ~output_type ~subst k ~context =
+ ~output_type ~metasenv ~subst k ~context =
   function
     | NCic.Rel n ->
        (try 
@@ -113,7 +113,26 @@ let nast_of_cic0
            (match hd with
            | NCic.Appl l -> NCic.Appl (l@args)
            | _ -> NCic.Appl (hd :: args)))
-    | NCic.Appl args -> idref (Ast.Appl (List.map (k ~context) args))
+    | NCic.Appl args as t ->
+       let args =
+        if not !Acic2content.hide_coercions then args
+        else
+         match
+          NCicCoercion.match_coercion status ~metasenv ~context ~subst t
+         with
+          | None -> args
+          | Some (_,sats,cpos) -> 
+(* CSC: sats e' il numero di pi, ma non so cosa farmene! voglio il numero di
+   argomenti da saltare, come prima! *)
+             if cpos < List.length args - 1 then
+              List.nth args (cpos + 1) ::
+               try snd (HExtlib.split_nth (cpos+sats+2) args) with Failure _->[]
+             else
+              args
+       in
+        (match args with
+            [arg] -> idref (k ~context arg)
+          | _ -> idref (Ast.Appl (List.map (k ~context) args)))
     | NCic.Match (NReference.Ref (uri,_) as r,outty,te,patterns) ->
         let name = NUri.name_of_uri uri in
 (* CSC
@@ -242,11 +261,11 @@ let instantiate32 idrefs env symbol args =
   if args = [] then head
   else Ast.Appl (head :: List.map instantiate_arg args)
 
-let rec nast_of_cic1 ~idref ~output_type ~subst ~context term = 
+let rec nast_of_cic1 status ~idref ~output_type ~metasenv ~subst ~context term =
   match (get_compiled32 ()) term with
   | None ->
-     nast_of_cic0 ~idref ~output_type ~subst
-      (nast_of_cic1 ~idref ~output_type ~subst) ~context term 
+     nast_of_cic0 status ~idref ~output_type ~metasenv ~subst
+      (nast_of_cic1 status ~idref ~output_type ~metasenv ~subst) ~context term 
   | Some (env, ctors, pid) -> 
       let idrefs =
        List.map
@@ -266,7 +285,8 @@ let rec nast_of_cic1 ~idref ~output_type ~subst ~context term =
        List.map
         (fun (name, term) ->
           name,
-           nast_of_cic1 ~idref ~output_type ~subst ~context term
+           nast_of_cic1 status ~idref ~output_type ~subst ~metasenv ~context
+            term
         ) env
       in
       let _, symbol, args, _ =
@@ -387,9 +407,10 @@ let instantiate_appl_pattern
   aux appl_pattern
 *)
 
-let nmap_sequent0 ~idref ~subst (i,(n,context,ty):int * NCic.conjecture) =
+let nmap_sequent0 status ~idref ~metasenv ~subst (i,(n,context,ty)) =
  let module K = Content in
- let nast_of_cic = nast_of_cic1 ~idref ~output_type:`Term ~subst in
+ let nast_of_cic =
+  nast_of_cic1 status ~idref ~output_type:`Term ~metasenv ~subst in
  let context',_ =
   List.fold_right
    (fun item (res,context) ->
@@ -421,11 +442,12 @@ let nmap_sequent0 ~idref ~subst (i,(n,context,ty):int * NCic.conjecture) =
   ("-1",i,context',nast_of_cic ~context ty)
 ;;
 
-let nmap_sequent ~subst metasenv =
+let nmap_sequent status ~metasenv ~subst conjecture =
  let module K = Content in
  let ids_to_refs = Hashtbl.create 211 in
  let register_ref = Hashtbl.add ids_to_refs in
-  nmap_sequent0 ~idref:(idref register_ref) ~subst metasenv, ids_to_refs
+  nmap_sequent0 status ~idref:(idref register_ref) ~metasenv ~subst conjecture,
+  ids_to_refs
 ;;
 
 let object_prefix = "obj:";;
@@ -496,20 +518,20 @@ let build_decl_item seed id n s =
       }
 ;;
 
-let nmap_obj (uri,_,metasenv,subst,kind) =
+let nmap_obj status (uri,_,metasenv,subst,kind) =
   let module K = Content in
   let ids_to_refs = Hashtbl.create 211 in
   let register_ref = Hashtbl.add ids_to_refs in
   let idref = idref register_ref in
   let nast_of_cic =
-   nast_of_cic1 ~idref ~output_type:`Term ~subst in
+   nast_of_cic1 status ~idref ~output_type:`Term ~metasenv ~subst in
   let seed = ref 0 in
   let conjectures =
    match metasenv with
       [] -> None
     | _ -> (*Some (List.map (map_conjectures seed) metasenv)*)
       (*CSC: used to be the previous line, that uses seed *)
-      Some (List.map (nmap_sequent0 ~idref ~subst) metasenv)
+      Some (List.map (nmap_sequent0 status ~idref ~metasenv ~subst) metasenv)
   in
   let res =
    match kind with