some interfaces improved

[helm.git] / helm / software / lambda-delta / basic_rg / brgSubstitution.ml

diff --git a/helm/software/lambda-delta/basic_rg/brgSubstitution.ml b/helm/software/lambda-delta/basic_rg/brgSubstitution.ml
index 40859b2d5e54f75a97eb1a31f179f8e8bbc7e908..5c9d91a8bdd14009ffb14b0c256ffe2dc480c95b 100644 (file)
--- a/helm/software/lambda-delta/basic_rg/brgSubstitution.ml
+++ b/helm/software/lambda-delta/basic_rg/brgSubstitution.ml
@@ -10,6 +10,17 @@
       V_______________________________________________________________ *)
 
 module B = Brg
+(* module O = Output *)
+
+let rec icm a = function
+   | B.Sort _
+   | B.LRef _
+   | B.GRef _                -> succ a
+   | B.Bind (_, B.Void, t)   -> icm (succ a) t
+   | B.Cast (_, u, t)        -> icm (icm a u) t
+   | B.Appl (_, u, t)
+   | B.Bind (_, B.Abst u, t)
+   | B.Bind (_, B.Abbr u, t) -> icm (icm (succ a) u) t
 
 let iter map d =
    let rec iter_bind d = function
@@ -30,4 +41,6 @@ let lift_map h _ a i =
    if i + h >= 0 then B.LRef (a, i + h) else assert false
 
 let lift h d t =
-   if h = 0 then t else iter (lift_map h) d t
+   if h = 0 then t else begin
+(*      O.icm := succ (* icm *) !O.icm (*t*); *) iter (lift_map h) d t
+   end