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-rw-r--r--pretyping/cases.ml12
1 files changed, 8 insertions, 4 deletions
diff --git a/pretyping/cases.ml b/pretyping/cases.ml
index c2d8921e..abe4fcc1 100644
--- a/pretyping/cases.ml
+++ b/pretyping/cases.ml
@@ -6,7 +6,7 @@
(* * GNU Lesser General Public License Version 2.1 *)
(************************************************************************)
-(* $Id: cases.ml 12167 2009-06-06 20:07:22Z herbelin $ *)
+(* $Id: cases.ml 13112 2010-06-10 19:58:23Z herbelin $ *)
open Util
open Names
@@ -851,7 +851,7 @@ let rec map_predicate f k ccl = function
| Abstract _ :: rest ->
map_predicate f (k+1) ccl rest
-let noccurn_predicate = map_predicate noccurn
+let noccur_predicate_between n = map_predicate (noccur_between n)
let liftn_predicate n = map_predicate (liftn n)
@@ -1122,13 +1122,16 @@ let build_branch current deps (realnames,dep) pb eqns const_info =
(* into "Gamma; typs; curalias |- tms" *)
let tomatch = lift_tomatch_stack const_info.cs_nargs pb.tomatch in
+ let pred_is_not_dep =
+ noccur_predicate_between 1 (List.length realnames + 1) pb.pred tomatch in
+
let typs'' =
list_map2_i
(fun i (na,t) deps ->
let dep = match dep with
| Name _ as na',k -> (if na <> Anonymous then na else na'),k
| Anonymous,KnownNotDep ->
- if deps = [] && noccurn_predicate 1 pb.pred tomatch then
+ if deps = [] && pred_is_not_dep then
(Anonymous,KnownNotDep)
else
(force_name na,KnownDep)
@@ -1801,7 +1804,8 @@ let prepare_predicate loc typing_fun evdref env tomatchs sign tycon pred =
let t2 = mkExistential env ~src:(loc, CasesType) evdref2 in
let arsign = extract_arity_signature env tomatchs sign in
let names2 = List.rev (List.map (List.map pi1) arsign) in
- let nal2,pred2 = build_initial_predicate KnownNotDep names2 t2 in
+ let pred2 = lift (List.length names2) t2 in
+ let nal2,pred2 = build_initial_predicate KnownNotDep names2 pred2 in
[evdref, nal1, pred1; evdref2, nal2, pred2])
(* Some type annotation *)