Implemented orphan murdering technique

[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 e01edfae309e30053ea336e3aeee2d35ba658536..2ed7eef23b005efff510e2daa6a9619f9ea67d84 100644 (file)
--- a/helm/software/components/ng_paramodulation/nCicBlob.ml
+++ b/helm/software/components/ng_paramodulation/nCicBlob.ml
@@ -18,7 +18,8 @@ module type NCicContext =
     val context : NCic.context
   end
 
-module NCicBlob(C : NCicContext) : Terms.Blob with type t = NCic.term = struct
+module NCicBlob(C : NCicContext) : Terms.Blob 
+with type t = NCic.term and type input = NCic.term = struct
 
   type t = NCic.term
 
@@ -27,14 +28,28 @@ module NCicBlob(C : NCicContext) : Terms.Blob with type t = NCic.term = struct
   let rec compare x y = 
     match x,y with
     | NCic.Rel i, NCic.Rel j -> i-j
+    | NCic.Meta (i,_), NCic.Meta (j,_) -> i-j
     | NCic.Const r1, NCic.Const r2 -> NReference.compare r1 r2
-    | NCic.Appl l1, NCic.Appl l2 -> assert false (* TODO *)
+    | NCic.Appl l1, NCic.Appl l2 -> FoUtils.lexicograph compare l1 l2
+    | NCic.Rel _, ( NCic.Meta _ | NCic.Const _ | NCic.Appl _ ) -> ~-1
+    | ( NCic.Meta _ | NCic.Const _ | NCic.Appl _ ), NCic.Rel _ -> 1
+    | NCic.Const _, ( NCic.Meta _ | NCic.Appl _ ) -> ~-1
+    | ( NCic.Meta _ | NCic.Appl _ ), NCic.Const _ -> 1
+    | NCic.Appl _, NCic.Meta _ -> ~-1
+    | NCic.Meta _, NCic.Appl _ -> 1
     | _ -> assert false
   ;;
+  
+  let compare x y = 
+    if NCicReduction.alpha_eq C.metasenv C.subst C.context x y then 0 
+    else compare x y
+  ;;
 
   let pp t = 
     NCicPp.ppterm ~context:C.context ~metasenv:C.metasenv ~subst:C.subst t;;
 
+  type input = NCic.term
+
   let rec embed = function
     | NCic.Meta (i,_) -> Terms.Var i, [i]
     | NCic.Appl l ->
@@ -46,6 +61,30 @@ module NCicBlob(C : NCicContext) : Terms.Blob with type t = NCic.term = struct
          (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 eqP = 
+    let r = 
+      OCic2NCic.reference_of_oxuri 
+       (UriManager.uri_of_string 
+         "cic:/matita/logic/equality/eq.ind#xpointer(1/1)")
+    in
+    NCic.Const r
+  ;;
 
  end