- Coq/preamble: missing alias added

[helm.git] / helm / software / components / acic_procedural / proceduralClassify.ml

diff --git a/helm/software/components/acic_procedural/proceduralClassify.ml b/helm/software/components/acic_procedural/proceduralClassify.ml
index 489feb4b66aa54385f1e3f102ecdc5381cb1d9c8..53c363a428372c447284c5c3f5654dbc2cd69f4b 100644 (file)
--- a/helm/software/components/acic_procedural/proceduralClassify.ml
+++ b/helm/software/components/acic_procedural/proceduralClassify.ml
@@ -31,7 +31,7 @@ module PEH = ProofEngineHelpers
 
 module H   = ProceduralHelpers
 
-type dependence = I.S.t * bool
+type dependences = (I.S.t * bool) list
 
 type conclusion = (int * int * UM.uri * int) option
 
@@ -56,6 +56,12 @@ let out_table b =
    Array.iteri map b;
    prerr_newline ()
 
+(* dummy dependences ********************************************************)
+
+let make l =
+   let map _ = I.S.empty, false in
+   List.rev_map map l
+
 (* classification ***********************************************************)
 
 let classify_conclusion vs = 
@@ -111,3 +117,21 @@ try
    let extract (x, y, z) = y, z in
    List.rev_map extract (List.tl (Array.to_list b)), rc
 with Invalid_argument _ -> failwith "Classify.classify"
+
+(* adjusting the inferrable arguments that do not occur in the goal *********)
+
+let adjust c vs ?goal classes = 
+   let list_xmap2 map l1 l2 = 
+      let rec aux a = function
+         | hd1 :: tl1, hd2 :: tl2 -> aux (map hd1 hd2 :: a) (tl1,tl2)
+        | _, l2                  -> List.rev_append l2 a
+      in
+      List.rev (aux [] (l1, l2))
+   in
+   let map where what (i, b) = 
+      let what = H.cic what in
+      (i, b || not (H.occurs c ~what ~where))
+   in
+   match goal with
+      | None      -> classes
+      | Some goal -> list_xmap2 (map goal) vs classes