module Data.Aeson.Functions
( mapHashKeyVal
, hashMapKey
, mapKeyVal
, mapKey
, decode
, strict
, lazy
) where
import Data.Hashable (Hashable)
import Data.Text (Text)
import Data.Text.Encoding (decodeUtf8, encodeUtf8)
import qualified Data.ByteString as B
import qualified Data.ByteString.Lazy as L
import qualified Data.HashMap.Strict as H
import qualified Data.Map as M
mapHashKeyVal :: (Eq k2, Hashable k2) => (k1 -> k2) -> (v1 -> v2)
-> M.Map k1 v1 -> H.HashMap k2 v2
mapHashKeyVal fk kv = M.foldrWithKey (\k v -> H.insert (fk k) (kv v)) H.empty
hashMapKey :: (Ord k2) => (k1 -> k2)
-> H.HashMap k1 v -> M.Map k2 v
hashMapKey kv = H.foldrWithKey (M.insert . kv) M.empty
mapKeyVal :: (Eq k2, Hashable k2) => (k1 -> k2) -> (v1 -> v2)
-> H.HashMap k1 v1 -> H.HashMap k2 v2
mapKeyVal fk kv = H.foldrWithKey (\k v -> H.insert (fk k) (kv v)) H.empty
mapKey :: (Eq k2, Hashable k2) => (k1 -> k2) -> H.HashMap k1 v -> H.HashMap k2 v
mapKey fk = mapKeyVal fk id
strict :: L.ByteString -> Text
strict = decode . B.concat . L.toChunks
lazy :: Text -> L.ByteString
lazy = L.fromChunks . (:[]) . encodeUtf8
decode :: B.ByteString -> Text
decode = decodeUtf8