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-rw-r--r--pretyping/cases.ml6
-rw-r--r--pretyping/vnorm.ml3
2 files changed, 9 insertions, 0 deletions
diff --git a/pretyping/cases.ml b/pretyping/cases.ml
index 6a63fb02f8..ad33297f0a 100644
--- a/pretyping/cases.ml
+++ b/pretyping/cases.ml
@@ -373,6 +373,11 @@ let ltac_interp_realnames lvar = function
| t, IsInd (ty,ind,realnal) -> t, IsInd (ty,ind,List.map (ltac_interp_name lvar) realnal)
| _ as x -> x
+let is_patvar pat =
+ match DAst.get pat with
+ | PatVar _ -> true
+ | _ -> false
+
let coerce_row typing_fun evdref env lvar pats (tomatch,(na,indopt)) =
let loc = loc_of_glob_constr tomatch in
let tycon,realnames = find_tomatch_tycon evdref env loc indopt in
@@ -381,6 +386,7 @@ let coerce_row typing_fun evdref env lvar pats (tomatch,(na,indopt)) =
let typ = nf_evar !evdref j.uj_type in
lvar := make_return_predicate_ltac_lvar !evdref na tomatch j.uj_val !lvar;
let t =
+ if realnames = None && pats <> [] && List.for_all is_patvar pats then NotInd (None,typ) else
try try_find_ind env !evdref typ realnames
with Not_found ->
unify_tomatch_with_patterns evdref env loc typ pats realnames in
diff --git a/pretyping/vnorm.ml b/pretyping/vnorm.ml
index c944080503..255707dc7b 100644
--- a/pretyping/vnorm.ml
+++ b/pretyping/vnorm.ml
@@ -209,6 +209,9 @@ and nf_evar env sigma evk stk =
| Zapp args :: stk ->
(** We assume that there is no consecutive Zapp nodes in a VM stack. Is that
really an invariant? *)
+ (** Let-bound arguments are present in the evar arguments but not in the
+ type, so we turn the let into a product. *)
+ let hyps = Context.Named.drop_bodies hyps in
let fold accu d = Term.mkNamedProd_or_LetIn d accu in
let t = List.fold_left fold concl hyps in
let t, args = nf_args env sigma args t in