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-rw-r--r--proofs/evar_refiner.ml6
1 files changed, 3 insertions, 3 deletions
diff --git a/proofs/evar_refiner.ml b/proofs/evar_refiner.ml
index 8367c09b8f..b1fe128a24 100644
--- a/proofs/evar_refiner.ml
+++ b/proofs/evar_refiner.ml
@@ -39,11 +39,11 @@ let define_and_solve_constraints evk c env evd =
pbs
with
| Success evd -> evd
- | UnifFailure _ -> error "Instance does not satisfy the constraints."
+ | UnifFailure _ -> user_err Pp.(str "Instance does not satisfy the constraints.")
let w_refine (evk,evi) (ltac_var,rawc) sigma =
if Evd.is_defined sigma evk then
- error "Instantiate called on already-defined evar";
+ user_err Pp.(str "Instantiate called on already-defined evar");
let env = Evd.evar_filtered_env evi in
let sigma',typed_c =
let flags = {
@@ -56,7 +56,7 @@ let w_refine (evk,evi) (ltac_var,rawc) sigma =
env sigma ltac_var (Pretyping.OfType (EConstr.of_constr evi.evar_concl)) rawc
with e when CErrors.noncritical e ->
let loc = Glob_ops.loc_of_glob_constr rawc in
- user_err ~loc
+ user_err ?loc
(str "Instance is not well-typed in the environment of " ++
Termops.pr_existential_key sigma evk ++ str ".")
in