Fixes #206

src/jiffy.erl

@@ -136,6 +136,8 @@ finish_decode({Pairs}) when is_list(Pairs) ->
     finish_decode_obj(Pairs, []);
 finish_decode(Vals) when is_list(Vals) ->
     finish_decode_arr(Vals, []);
+finish_decode({has_trailer, Value, Rest}) ->
+    {has_trailer, maybe_map(finish_decode(Value)), Rest};
 finish_decode(Val) ->
     maybe_map(Val).
 

test/jiffy_15_return_trailer_tests.erl

@@ -16,4 +16,12 @@ trailer_test_() ->
     ],
     {"Test return_trailer", lists:map(fun({Data, Result}) ->
         ?_assertEqual(Result, jiffy:decode(Data, Opts))
-    end, Cases)}.
+    end, Cases)}.
+
+
+trailer_bignum_test() ->
+    Opts = [return_maps, return_trailer],
+    Data = <<"{\"amount\":-50000000000000000000}{}">>,
+    Obj = #{<<"amount">> => -50000000000000000000},
+    Expect = {has_trailer, Obj, <<"{}">>},
+    ?assertEqual(Expect, jiffy:decode(Data, Opts)).