Data.Aeson.Extra.Map

Deprecated: Use aeson-1 TOJSONKey etc functionality

More or less useful newtypes for writing FromJSON & ToJSON instances

Documentation

newtype M a

A wrapper type to parse arbitrary maps

λ > decode "{\"1\": 1, \"2\": 2}" :: Maybe (M (H.HashMap Int Int))
Just (M {getMap = fromList [(1,1),(2,2)]})

Constructors

M

Fields

• getMap :: a

Instances

Functor M

Methods

fmap :: (a -> b) -> M a -> M b

(<$) :: a -> M b -> M a

Foldable M

Methods

fold :: Monoid m => M m -> m

foldMap :: Monoid m => (a -> m) -> M a -> m

foldr :: (a -> b -> b) -> b -> M a -> b

foldr' :: (a -> b -> b) -> b -> M a -> b

foldl :: (b -> a -> b) -> b -> M a -> b

foldl' :: (b -> a -> b) -> b -> M a -> b

foldr1 :: (a -> a -> a) -> M a -> a

foldl1 :: (a -> a -> a) -> M a -> a

toList :: M a -> [a]

null :: M a -> Bool

length :: M a -> Int

elem :: Eq a => a -> M a -> Bool

maximum :: Ord a => M a -> a

minimum :: Ord a => M a -> a

sum :: Num a => M a -> a

product :: Num a => M a -> a

Traversable M

Methods

traverse :: Applicative f => (a -> f b) -> M a -> f (M b)

sequenceA :: Applicative f => M (f a) -> f (M a)

mapM :: Monad m => (a -> m b) -> M a -> m (M b)

sequence :: Monad m => M (m a) -> m (M a)

Eq a => Eq (M a)

Methods

(==) :: M a -> M a -> Bool

(/=) :: M a -> M a -> Bool

Ord a => Ord (M a)

Methods

compare :: M a -> M a -> Ordering

(<) :: M a -> M a -> Bool

(<=) :: M a -> M a -> Bool

(>) :: M a -> M a -> Bool

(>=) :: M a -> M a -> Bool

max :: M a -> M a -> M a

min :: M a -> M a -> M a

Read a => Read (M a)

Methods

readsPrec :: Int -> ReadS (M a)

readList :: ReadS [M a]

readPrec :: ReadPrec (M a)

readListPrec :: ReadPrec [M a]

Show a => Show (M a)

Methods

showsPrec :: Int -> M a -> ShowS

show :: M a -> String

showList :: [M a] -> ShowS

FromJSONMap m k v => FromJSON (M m)

Methods

parseJSON :: Value -> Parser (M m)

parseJSONList :: Value -> Parser [M m]

ToJSONMap m k v => ToJSON (M m)

Methods

toJSON :: M m -> Value

toEncoding :: M m -> Encoding

toJSONList :: [M m] -> Value

toEncodingList :: [M m] -> Encoding

class FromJSONKey a where

Minimal complete definition

parseJSONKey

Methods

parseJSONKey :: Text -> Parser a

Instances

FromJSONKey Int

Methods

parseJSONKey :: Text -> Parser Int

FromJSONKey Integer

Methods

parseJSONKey :: Text -> Parser Integer

FromJSONKey String

Methods

parseJSONKey :: Text -> Parser String

FromJSONKey Text

Methods

parseJSONKey :: Text -> Parser Text

FromJSONKey Text

Methods

parseJSONKey :: Text -> Parser Text

parseIntegralJSONKey :: Integral a => Text -> Parser a

class FromJSONMap m k v | m -> k v where

Minimal complete definition

parseJSONMap

Methods

parseJSONMap :: HashMap Text Value -> Parser m

Instances

(Eq k, Hashable k, FromJSONKey k, FromJSON v) => FromJSONMap (HashMap k v) k v

Methods

parseJSONMap :: HashMap Text Value -> Parser (HashMap k v)

(Ord k, FromJSONKey k, FromJSON v) => FromJSONMap (Map k v) k v

Methods

parseJSONMap :: HashMap Text Value -> Parser (Map k v)

class ToJSONKey a where

Minimal complete definition

toJSONKey

Methods

toJSONKey :: a -> Text

Instances

ToJSONKey Int

Methods

toJSONKey :: Int -> Text

ToJSONKey Integer

Methods

toJSONKey :: Integer -> Text

ToJSONKey String

Methods

toJSONKey :: String -> Text

ToJSONKey Text

Methods

toJSONKey :: Text -> Text

ToJSONKey Text

Methods

toJSONKey :: Text -> Text

class ToJSONMap m k v | m -> k v where

Minimal complete definition

toJSONMap

Methods

toJSONMap :: m -> HashMap Text Value

Instances

(ToJSONKey k, ToJSON v) => ToJSONMap (HashMap k v) k v

Methods

toJSONMap :: HashMap k v -> HashMap Text Value

(ToJSONKey k, ToJSON v) => ToJSONMap (Map k v) k v

Methods

toJSONMap :: Map k v -> HashMap Text Value