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[helm.git] / helm / software / components / ng_paramodulation / nCicBlob.ml

diff --git a/helm/software/components/ng_paramodulation/nCicBlob.ml b/helm/software/components/ng_paramodulation/nCicBlob.ml
index 87d081deae51cad79c4951bf7eb004c2660729e7..a0fa80adab1bbff4f949c37b69d3734a79ba52e1 100644 (file)
--- a/helm/software/components/ng_paramodulation/nCicBlob.ml
+++ b/helm/software/components/ng_paramodulation/nCicBlob.ml
@@ -11,7 +11,7 @@
 
 (* $Id: terms.mli 9822 2009-06-03 15:37:06Z tassi $ *)
 
-module type NCicContext = 
+module type NCicContext =
   sig
     val metasenv : NCic.metasenv
     val subst : NCic.substitution
@@ -35,4 +35,35 @@ module NCicBlob(C : NCicContext) : Terms.Blob with type t = NCic.term = struct
   let pp t = 
     NCicPp.ppterm ~context:C.context ~metasenv:C.metasenv ~subst:C.subst t;;
 
+  let rec embed = function
+    | NCic.Meta (i,_) -> Terms.Var i, [i]
+    | NCic.Appl l ->
+       let rec aux acc l = function
+         |[] -> acc@l
+         |hd::tl -> if List.mem hd l then aux acc l tl else aux (hd::acc) l tl
+       in
+       let res,vars = List.fold_left
+         (fun (r,v) t -> let r1,v1 = embed t in (r1::r),aux [] v v1) ([],[]) l
+       in (Terms.Node (List.rev res)), vars
+    | t -> Terms.Leaf t, []
+  ;;
+
+  let embed t = fst (embed t) ;;
+
+  let saturate t ty = 
+    let sty, _, args = 
+      NCicMetaSubst.saturate ~delta:max_int C.metasenv C.subst C.context
+        ty 0
+    in
+    let proof = 
+      if args = [] then Terms.Leaf t 
+      else Terms.Node (Terms.Leaf t :: List.map embed args)
+    in
+    let sty = embed sty in
+    proof, sty
+  ;;
+
+  let is_eq_predicate t = assert false;;
+
+
  end