reploy/AesonUtils.hs

26 lines
1,003 B
Haskell

{-
- Copyright (C) 2023 University of Luxembourg
-
- Licensed under the Apache License, Version 2.0 (the "License"); you may not
- use this file except in compliance with the License. You may obtain a copy
- of the License from the LICENSE file in this repository, or at:
-
- http://www.apache.org/licenses/LICENSE-2.0
-
- Unless required by applicable law or agreed to in writing, software
- distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
- WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
- License for the specific language governing permissions and limitations
- under the License.
-}
module AesonUtils where
import qualified Data.Aeson as A
import qualified Data.Aeson.KeyMap as KM
-- | A bit like `lodashMerge` from aeson-extra, but replaces the arrays. Right
-- argument overwrites the left one.
objMerge :: A.Value -> A.Value -> A.Value
objMerge (A.Object a) (A.Object b) = A.Object $ KM.unionWith objMerge a b
objMerge _ b = b