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-rw-r--r--lib/errors.ml10
-rw-r--r--lib/errors.mli7
2 files changed, 17 insertions, 0 deletions
diff --git a/lib/errors.ml b/lib/errors.ml
index 92e5ac642..27baf4314 100644
--- a/lib/errors.ml
+++ b/lib/errors.ml
@@ -124,3 +124,13 @@ let _ = register_handler begin function
| UserError(s,pps) -> hov 0 (str "Error: " ++ where (Some s) ++ pps)
| _ -> raise Unhandled
end
+
+(** Critical exceptions shouldn't be catched and ignored by mistake
+ by inner functions during a [vernacinterp]. They should be handled
+ only at the very end of interp, to be displayed to the user. *)
+
+let noncritical = function
+ | Sys.Break | Out_of_memory | Stack_overflow
+ | Assert_failure _ | Match_failure _ | Anomaly _
+ | Timeout | Drop | Quit -> false
+ | _ -> true
diff --git a/lib/errors.mli b/lib/errors.mli
index 3e551e394..5f230d4c3 100644
--- a/lib/errors.mli
+++ b/lib/errors.mli
@@ -90,3 +90,10 @@ val print_no_report : exn -> Pp.std_ppcmds
(** Same as [print], except that anomalies are not printed but re-raised
(used for the Fail command) *)
val print_no_anomaly : exn -> Pp.std_ppcmds
+
+(** Critical exceptions shouldn't be catched and ignored by mistake
+ by inner functions during a [vernacinterp]. They should be handled
+ only at the very end of interp, to be displayed to the user.
+ Typical example: [Sys.Break], [Assert_failure], [Anomaly] ...
+*)
+val noncritical : exn -> bool