First implementation of irrelevance in conversion.

diff --git a/helm/software/components/ng_kernel/nCicReduction.ml b/helm/software/components/ng_kernel/nCicReduction.ml
index b6360a0c723f6b0d286f174c6437ab38f84409a3..18e9f92cbc1ffbb229d89823b52f5b5351b80647 100644 (file)
--- a/helm/software/components/ng_kernel/nCicReduction.ml
+++ b/helm/software/components/ng_kernel/nCicReduction.ml
@@ -535,6 +535,15 @@ let are_convertible whd ?(subst=[])  =
               aux test_eq_only context t1 term
            with NCicUtils.Subst_not_found _ -> false)
 
+       | (C.Appl (C.Const r1::tl1), C.Appl (C.Const r2::tl2)) ->
+          r1 = r2 &&
+           let relevance = NCicEnvironment.get_relevance r1 in
+           (try
+             HExtlib.list_forall_default3
+              (fun t1 t2 b -> not b || aux test_eq_only context t1 t2)
+              tl1 tl2 true relevance
+            with Invalid_argument _ -> false)
+
        | (C.Appl l1, C.Appl l2) ->
           (try List.for_all2 (aux test_eq_only context) l1 l2
            with Invalid_argument _ -> false)
@@ -571,12 +580,17 @@ let are_convertible whd ?(subst=[])  =
      let rec convert_machines ((k1,e1,t1,s1 as m1),(k2,e2,t2,s2 as m2),delta) =
        (alpha_eq test_eq_only
          (R.unwind (k1,e1,t1,[])) (R.unwind (k2,e2,t2,[])) &&
+        let relevance =
+          match t1 with
+              C.Const r -> NCicEnvironment.get_relevance r
+            | _ -> [] in
         try
-         List.for_all 
-           (fun (t1,t2) ->
-             let t1 = RS.from_stack t1 and t2 = RS.from_stack t2 in
-             convert_machines (small_delta_step t1 t2))
-           (List.combine s1 s2)
+         HExtlib.list_forall_default3
+           (fun t1 t2 b  ->
+             not b ||
+             let t1 = RS.from_stack t1 in
+             let t2 = RS.from_stack t2 in
+             convert_machines (small_delta_step t1 t2)) s1 s2 true relevance
         with Invalid_argument _ -> false) || 
        (delta > 0 &&
           let delta = delta - 1 in