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-rw-r--r--lib/stdlib/src/io_lib.erl13
-rw-r--r--lib/stdlib/src/io_lib_pretty.erl12
2 files changed, 23 insertions, 2 deletions
diff --git a/lib/stdlib/src/io_lib.erl b/lib/stdlib/src/io_lib.erl
index 9d447418f8..3c8430b820 100644
--- a/lib/stdlib/src/io_lib.erl
+++ b/lib/stdlib/src/io_lib.erl
@@ -963,7 +963,18 @@ limit_tail(Other, D) ->
%% maps:from_list() creates a map with the same internal ordering of
%% the selected associations as in Map.
limit_map(Map, D) ->
- maps:from_list(erts_internal:maps_to_list(Map, D)).
+ limit_map(maps:iterator(Map), D, []).
+
+limit_map(_I, 0, Acc) ->
+ maps:from_list(Acc);
+limit_map(I, D, Acc) ->
+ case maps:next(I) of
+ {K, V, NextI} ->
+ limit_map(NextI, D-1, [{K,V} | Acc]);
+ none ->
+ maps:from_list(Acc)
+ end.
+
%% maps:from_list(limit_map_body(erts_internal:maps_to_list(Map, D), D)).
%% limit_map_body(_, 0) -> [{'...', '...'}];
diff --git a/lib/stdlib/src/io_lib_pretty.erl b/lib/stdlib/src/io_lib_pretty.erl
index 505613b80e..89e1931d2d 100644
--- a/lib/stdlib/src/io_lib_pretty.erl
+++ b/lib/stdlib/src/io_lib_pretty.erl
@@ -478,9 +478,19 @@ print_length(Term, _D, _RF, _Enc, _Str) ->
print_length_map(_Map, 1, _RF, _Enc, _Str) ->
{"#{...}", 6};
print_length_map(Map, D, RF, Enc, Str) when is_map(Map) ->
- Pairs = print_length_map_pairs(erts_internal:maps_to_list(Map, D), D, RF, Enc, Str),
+ Pairs = print_length_map_pairs(limit_map(maps:iterator(Map), D, []), D, RF, Enc, Str),
{{map, Pairs}, list_length(Pairs, 3)}.
+limit_map(_I, 0, Acc) ->
+ Acc;
+limit_map(I, D, Acc) ->
+ case maps:next(I) of
+ {K, V, NextI} ->
+ limit_map(NextI, D-1, [{K,V} | Acc]);
+ none ->
+ Acc
+ end.
+
print_length_map_pairs([], _D, _RF, _Enc, _Str) ->
[];
print_length_map_pairs(_Pairs, 1, _RF, _Enc, _Str) ->