--- a/src/Pure/Isar/toplevel.ML Thu Dec 29 11:49:11 2022 +0100
+++ b/src/Pure/Isar/toplevel.ML Thu Dec 29 12:08:58 2022 +0100
@@ -328,7 +328,7 @@
| apply_union int (tr :: trs) state =
apply_union int trs state
handle Runtime.UNDEF => apply_tr int tr state
- | FAILURE (alt_state, UNDEF) => apply_tr int tr alt_state
+ | FAILURE (alt_state, Runtime.UNDEF) => apply_tr int tr alt_state
| exn as FAILURE _ => raise exn
| exn => raise FAILURE (state, exn);
@@ -644,7 +644,7 @@
fun app int (tr as Transition {name, markers, trans, ...}) =
setmp_thread_position tr
(Timing.protocol (name_of tr) (pos_of tr) (apply_trans int name markers trans)
- ##> Option.map (fn UNDEF => ERROR (type_error tr) | exn => exn)
+ ##> Option.map (fn Runtime.UNDEF => ERROR (type_error tr) | exn => exn)
#> show_state);
in