1 files changed, 80 insertions, 0 deletions
diff --git a/gen/map.erl b/gen/map.erl
new file mode 100644
index 0000000..b6327cd
--- /dev/null
+++ b/gen/map.erl
@@ -0,0 +1,80 @@
+-module(map).
+-include_lib("eunit/include/eunit.hrl").
+
+-export([new/0, size/1, to_list/1, from_list/1, fetch/2, map_values/2, keys/1, values/1, filter/2]).
+
+new() ->
+    maps:new().
+
+size(A) ->
+    maps:size(A).
+
+to_list(A) ->
+    maps:to_list(A).
+
+from_list(A) ->
+    maps:from_list(A).
+
+-ifdef(TEST).
+from_list_test() ->
+    Proplist = [{4, 0}, {1, 0}],
+    Map = from_list(Proplist),
+    _ = fun(Capture1) -> expect:equal(Capture1, 2) end(size(Map)),
+    fun(Capture1) -> expect:equal(Capture1, Proplist) end(to_list(Map)).
+-endif.
+
+fetch(A, B) ->
+    gleam__stdlib:map_fetch(A, B).
+
+-ifdef(TEST).
+fetch_test() ->
+    Proplist = [{4, 0}, {1, 1}],
+    Map = from_list(Proplist),
+    _ = fun(Capture1) ->
+        expect:equal(Capture1, {ok, 0})
+    end(fun(Capture1) -> fetch(Capture1, 4) end(Map)),
+    fun(Capture1) ->
+        expect:equal(Capture1, {ok, 1})
+    end(fun(Capture1) -> fetch(Capture1, 1) end(Map)).
+-endif.
+
+erl_map_values(A, B) ->
+    maps:map(A, B).
+
+map_values(Map, Fun) ->
+    erl_map_values(Fun, Map).
+
+-ifdef(TEST).
+map_values_test() ->
+    fun(Capture1) ->
+        expect:equal(Capture1, from_list([{1, 0}, {2, 3}, {3, 5}]))
+    end(fun(Capture1) ->
+            map_values(Capture1, fun(K, V) -> K + V end)
+        end(from_list([{1, 0}, {2, 1}, {3, 2}]))).
+-endif.
+
+keys(A) ->
+    maps:keys(A).
+
+-ifdef(TEST).
+keys_test() ->
+    fun(Capture1) ->
+        expect:equal(Capture1, [<<"a">>, <<"b">>, <<"c">>])
+    end(keys(from_list([{<<"a">>, 0}, {<<"b">>, 1}, {<<"c">>, 2}]))).
+-endif.
+
+values(A) ->
+    maps:values(A).
+
+-ifdef(TEST).
+values_test() ->
+    fun(Capture1) ->
+        expect:equal(Capture1, [0, 1, 2])
+    end(values(from_list([{<<"a">>, 0}, {<<"b">>, 1}, {<<"c">>, 2}]))).
+-endif.
+
+erl_filter(A, B) ->
+    maps:filter(A, B).
+
+filter(Map, Fun) ->
+    filter(Fun, Map).