erl_stdlib_errors: Fix wonky error description for maps:update/3

erlang · Aug 14, 2024 · 463a0b7 · 463a0b7
1 parent fc482f0
commit 463a0b7
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/lib/stdlib/src/erl_stdlib_errors.erl b/lib/stdlib/src/erl_stdlib_errors.erl
@@ -269,6 +269,9 @@ format_maps_error(take, _Args) ->
     [[], not_map];
 format_maps_error(to_list, _Args) ->
     [not_map_or_iterator];
+format_maps_error(update, [Key, _Value, Map]) when is_map(Map) ->
+    false = is_map_key(Key, Map),               %Assertion.
+    [<<"not present in map">>, [], []];
 format_maps_error(update, _Args) ->
     [[], [], not_map];
 format_maps_error(update_with, [_Key, Fun, Map]) ->