arithmetics for λδ

[helm.git] / helm / software / components / ng_tactics / nTacStatus.ml

diff --git a/helm/software/components/ng_tactics/nTacStatus.ml b/helm/software/components/ng_tactics/nTacStatus.ml
index 0bef3a794448b6a9834e1be363f401bb3b0b1e8a..e7d5bb3b532ee1eac2b6fdcee560ad8b58cb61c2 100644 (file)
--- a/helm/software/components/ng_tactics/nTacStatus.ml
+++ b/helm/software/components/ng_tactics/nTacStatus.ml
@@ -31,20 +31,29 @@ let wrap fname f x =
   | NCicMetaSubst.MetaSubstFailure _ as exn -> fail ~exn (lazy fname)
 ;;
 
+class type g_pstatus =
+ object
+  inherit NEstatus.g_status
+  method obj: NCic.obj
+ end
+
 class pstatus =
  fun (o: NCic.obj) ->
-  object
+ object (self)
    inherit NEstatus.status
    val obj = o
    method obj = obj
    method set_obj o = {< obj = o >}
+   method set_pstatus : 'status. #g_pstatus as 'status -> 'self
+   = fun o -> (self#set_estatus o)#set_obj o#obj
   end
 
 type tactic_term = CicNotationPt.term Disambiguate.disambiguator_input
 type tactic_pattern = GrafiteAst.npattern Disambiguate.disambiguator_input
 
-let pp_status status = 
-  pp (lazy (NCicPp.ppobj status#obj))
+let pp_tac_status status = 
+  prerr_endline (NCicPp.ppobj status#obj);
+  prerr_endline ("STACK:\n" ^ Continuationals.Stack.pp status#stack)
 ;;
 
 type cic_term = NCic.context * NCic.term
@@ -229,6 +238,10 @@ let get_goalty status g =
  with NCicUtils.Meta_not_found _ as exn -> fail ~exn (lazy "get_goalty")
 ;;
 
+let get_subst status =
+  let _,_,_,subst,_ = status#obj in subst
+;;
+
 let to_subst status i entry =
  let name,height,metasenv,subst,obj = status#obj in
  let metasenv = List.filter (fun j,_ -> j <> i) metasenv in
@@ -236,11 +249,15 @@ let to_subst status i entry =
   status#set_obj (name,height,metasenv,subst,obj)
 ;;
 
-let instantiate status i t =
+let instantiate status ?refine:(dorefine=true) i t =
  let _,_,metasenv,_,_ = status#obj in
  let gname, context, gty = List.assoc i metasenv in
- let status, (_,t), (_,ty) = refine status context t (Some (context,gty)) in
-  to_subst status i (gname,context,t,ty)
+  if dorefine then
+   let status, (_,t), (_,ty) = refine status context t (Some (context,gty)) in
+    to_subst status i (gname,context,t,ty)
+  else
+   let status,(_,ty) = typeof status context t in
+    to_subst status i (gname,context,snd t,ty)
 ;;
 
 let instantiate_with_ast status i t =
@@ -267,6 +284,7 @@ let mk_meta status ?(attrs=[]) ctx bo_or_ty kind =
       let n,h,metasenv,subst,o = status#obj in
       let metasenv, metano, instance, _ = 
         NCicMetaSubst.mk_meta ~attrs metasenv ctx ~with_type:ty kind in
+      let attrs,_,_ = NCicUtils.lookup_meta metano metasenv in
       let metasenv = List.filter (fun j,_ -> j <> metano) metasenv in
       let subst = (metano, (attrs, ctx, bo_, ty)) :: subst in
       let status = status#set_obj (n,h,metasenv,subst,o) in
@@ -396,7 +414,7 @@ let analyse_indty status ty =
    | _,NCic.Const ref -> ref, []
    | _,NCic.Appl (NCic.Const (NRef.Ref (_,(NRef.Ind _)) as ref) :: args) -> 
          ref, args
-   | _,_ -> fail (lazy ("not an inductive type")) in
+   | _,_ -> fail (lazy ("not an inductive type: " ^ ppterm status ty)) in
  let _,lno,tl,_,i = NCicEnvironment.get_checked_indtys ref in
  let _,_,_,cl = List.nth tl i in
  let consno = List.length cl in
@@ -410,6 +428,11 @@ let apply_subst status ctx t =
   status, (ctx, NCicUntrusted.apply_subst subst ctx t)
 ;;
 
+let apply_subst_context status ~fix_projections ctx =
+ let _,_,_,subst,_ = status#obj in
+  NCicUntrusted.apply_subst_context ~fix_projections subst ctx
+;;
+
 let metas_of_term status (context,t) =
  let _,_,_,subst,_ = status#obj in
  NCicUntrusted.metas_of_term subst context t
@@ -417,13 +440,21 @@ let metas_of_term status (context,t) =
 
 (* ============= move this elsewhere ====================*)
 
+class type ['stack] g_status =
+ object
+  inherit g_pstatus
+  method stack: 'stack
+ end
+
 class ['stack] status =
  fun (o: NCic.obj) (s: 'stack) ->
-  object
+ object (self)
    inherit (pstatus o)
    val stack = s
    method stack = stack
    method set_stack s = {< stack = s >}
+   method set_status : 'status. 'stack #g_status as 'status -> 'self
+   = fun o -> (self#set_pstatus o)#set_stack o#stack
   end
 
 class type lowtac_status = [unit] status