diff options
Diffstat (limited to 'pretyping/pretyping.ml')
| -rw-r--r-- | pretyping/pretyping.ml | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/pretyping/pretyping.ml b/pretyping/pretyping.ml index 1c17ff88..b8dc719b 100644 --- a/pretyping/pretyping.ml +++ b/pretyping/pretyping.ml @@ -6,7 +6,7 @@ (* * GNU Lesser General Public License Version 2.1 *) (************************************************************************) -(* $Id: pretyping.ml 13408 2010-09-11 19:19:04Z herbelin $ *) +(* $Id: pretyping.ml 13780 2011-01-07 16:37:57Z herbelin $ *) open Pp open Util @@ -634,7 +634,10 @@ module Pretyping_F (Coercion : Coercion.S) = struct let cty = nf_evar !evdref cj.uj_type and tval = nf_evar !evdref tj.utj_val in let cj = match k with | VMcast when not (occur_existential cty || occur_existential tval) -> - ignore (Reduction.vm_conv Reduction.CUMUL env cty tval); cj + (try ignore (Reduction.vm_conv Reduction.CUMUL env cty tval); cj + with Reduction.NotConvertible -> + error_actual_type_loc loc env !evdref cj tval) + | _ -> inh_conv_coerce_to_tycon loc env evdref cj (mk_tycon tval) in let v = mkCast (cj.uj_val, k, tval) in |