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-rw-r--r--lib/stdlib/src/maps.erl26
1 files changed, 20 insertions, 6 deletions
diff --git a/lib/stdlib/src/maps.erl b/lib/stdlib/src/maps.erl
index 1f94d9e69d..3f019aa35a 100644
--- a/lib/stdlib/src/maps.erl
+++ b/lib/stdlib/src/maps.erl
@@ -23,7 +23,8 @@
fold/3,
map/2,
size/1,
- without/2
+ without/2,
+ get/3
]).
@@ -43,8 +44,6 @@
values/1
]).
--compile(no_native).
-
-spec get(Key,Map) -> Value when
Key :: term(),
Map :: map(),
@@ -134,16 +133,31 @@ to_list(_) -> erlang:nif_error(undef).
update(_,_,_) -> erlang:nif_error(undef).
--spec values(Map) -> Keys when
+-spec values(Map) -> Values when
Map :: map(),
- Keys :: [Key],
- Key :: term().
+ Values :: [Value],
+ Value :: term().
values(_) -> erlang:nif_error(undef).
%%% End of BIFs
+-spec get(Key, Map, Default) -> Value | Default when
+ Key :: term(),
+ Map :: map(),
+ Value :: term(),
+ Default :: term().
+
+get(Key, Map, Default) ->
+ case maps:find(Key, Map) of
+ {ok, Value} ->
+ Value;
+ error ->
+ Default
+ end.
+
+
-spec fold(Fun,Init,Map) -> Acc when
Fun :: fun((K, V, AccIn) -> AccOut),
Init :: term(),