Safe Haskell	None
Language	GHC2021

GTVM.Internal.Json

Synopsis

jcGtvmhs :: String -> Options
gpjg :: (Generic a, GFromJSON Zero (Rep a)) => String -> Value -> Parser a
gtjg :: (Generic a, GToJSON' Value Zero (Rep a)) => String -> a -> Value
gteg :: (Generic a, GToJSON' Encoding Zero (Rep a)) => String -> a -> Encoding
class ToJSON a where
- toJSON :: a -> Value
- toEncoding :: a -> Encoding
- toJSONList :: [a] -> Value
- toEncodingList :: [a] -> Encoding
- omitField :: a -> Bool
genericToEncoding :: (Generic a, GToJSON' Encoding Zero (Rep a)) => Options -> a -> Encoding
genericToJSON :: (Generic a, GToJSON' Value Zero (Rep a)) => Options -> a -> Value
class FromJSON a where
- parseJSON :: Value -> Parser a
- parseJSONList :: Value -> Parser [a]
- omittedField :: Maybe a
genericParseJSON :: (Generic a, GFromJSON Zero (Rep a)) => Options -> Value -> Parser a

Documentation

jcGtvmhs :: String -> Options Source #

gpjg :: (Generic a, GFromJSON Zero (Rep a)) => String -> Value -> Parser a Source #

Shortcut for genericParseJSON (gtvm-hs)

gtjg :: (Generic a, GToJSON' Value Zero (Rep a)) => String -> a -> Value Source #

Shortcut for genericToJSON (gtvm-hs)

gteg :: (Generic a, GToJSON' Encoding Zero (Rep a)) => String -> a -> Encoding Source #

Shortcut for genericToEncoding (gtvm-hs)

class ToJSON a where #

A type that can be converted to JSON.

Instances in general must specify toJSON and should (but don't need to) specify toEncoding.

An example type and instance:

-- Allow ourselves to write Text literals. {-# LANGUAGE OverloadedStrings #-} data Coord = Coord { x :: Double, y :: Double } instance ToJSON Coord where toJSON (Coord x y) = object ["x" .= x, "y" .= y] toEncoding (Coord x y) = pairs ("x" .= x <> "y" .= y)

Instead of manually writing your ToJSON instance, there are two options to do it automatically:

Data.Aeson.TH provides Template Haskell functions which will derive an instance at compile time. The generated instance is optimized for your type so it will probably be more efficient than the following option.
The compiler can provide a default generic implementation for toJSON.

To use the second, simply add a deriving Generic clause to your datatype and declare a ToJSON instance. If you require nothing other than defaultOptions, it is sufficient to write (and this is the only alternative where the default toJSON implementation is sufficient):

{-# LANGUAGE DeriveGeneric #-} import GHC.Generics data Coord = Coord { x :: Double, y :: Double } deriving Generic instance ToJSON Coord where toEncoding = genericToEncoding defaultOptions

or more conveniently using the DerivingVia extension

deriving via Generically Coord instance ToJSON Coord

If on the other hand you wish to customize the generic decoding, you have to implement both methods:

customOptions = defaultOptions { fieldLabelModifier = map toUpper } instance ToJSON Coord where toJSON = genericToJSON customOptions toEncoding = genericToEncoding customOptions

Previous versions of this library only had the toJSON method. Adding toEncoding had two reasons:

toEncoding is more efficient for the common case that the output of toJSON is directly serialized to a ByteString. Further, expressing either method in terms of the other would be non-optimal.
The choice of defaults allows a smooth transition for existing users: Existing instances that do not define toEncoding still compile and have the correct semantics. This is ensured by making the default implementation of toEncoding use toJSON. This produces correct results, but since it performs an intermediate conversion to a Value, it will be less efficient than directly emitting an Encoding. (this also means that specifying nothing more than instance ToJSON Coord would be sufficient as a generically decoding instance, but there probably exists no good reason to not specify toEncoding in new instances.)

Minimal complete definition

Nothing

Methods

toJSON :: a -> Value #

Convert a Haskell value to a JSON-friendly intermediate type.

default toJSON :: (Generic a, GToJSON' Value Zero (Rep a)) => a -> Value #

toEncoding :: a -> Encoding #

Encode a Haskell value as JSON.

The default implementation of this method creates an intermediate Value using toJSON. This provides source-level compatibility for people upgrading from older versions of this library, but obviously offers no performance advantage.

To benefit from direct encoding, you must provide an implementation for this method. The easiest way to do so is by having your types implement Generic using the DeriveGeneric extension, and then have GHC generate a method body as follows.

instance ToJSON Coord where toEncoding = genericToEncoding defaultOptions

toJSONList :: [a] -> Value #

toEncodingList :: [a] -> Encoding #

omitField :: a -> Bool #

Defines when it is acceptable to omit a field of this type from a record. Used by (.?=) operator, and Generics and TH deriving with omitNothingFields = True.

Since: aeson-2.2.0.0

Instances

Instances details

ToJSON Key
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: Key -> Value # toEncoding :: Key -> Encoding # toJSONList :: [Key] -> Value # toEncodingList :: [Key] -> Encoding # omitField :: Key -> Bool #
ToJSON DotNetTime
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: DotNetTime -> Value # toEncoding :: DotNetTime -> Encoding # toJSONList :: [DotNetTime] -> Value # toEncodingList :: [DotNetTime] -> Encoding # omitField :: DotNetTime -> Bool #
ToJSON Value
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: Value -> Value # toEncoding :: Value -> Encoding # toJSONList :: [Value] -> Value # toEncodingList :: [Value] -> Encoding # omitField :: Value -> Bool #
ToJSON IntSet
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: IntSet -> Value # toEncoding :: IntSet -> Encoding # toJSONList :: [IntSet] -> Value # toEncodingList :: [IntSet] -> Encoding # omitField :: IntSet -> Bool #
ToJSON Void
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: Void -> Value # toEncoding :: Void -> Encoding # toJSONList :: [Void] -> Value # toEncodingList :: [Void] -> Encoding # omitField :: Void -> Bool #
ToJSON All	Since: aeson-2.2.3.0
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: All -> Value # toEncoding :: All -> Encoding # toJSONList :: [All] -> Value # toEncodingList :: [All] -> Encoding # omitField :: All -> Bool #
ToJSON Any	Since: aeson-2.2.3.0
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: Any -> Value # toEncoding :: Any -> Encoding # toJSONList :: [Any] -> Value # toEncodingList :: [Any] -> Encoding # omitField :: Any -> Bool #
ToJSON Version
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: Version -> Value # toEncoding :: Version -> Encoding # toJSONList :: [Version] -> Value # toEncodingList :: [Version] -> Encoding # omitField :: Version -> Bool #
ToJSON CTime
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: CTime -> Value # toEncoding :: CTime -> Encoding # toJSONList :: [CTime] -> Value # toEncodingList :: [CTime] -> Encoding # omitField :: CTime -> Bool #
ToJSON Int16
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: Int16 -> Value # toEncoding :: Int16 -> Encoding # toJSONList :: [Int16] -> Value # toEncodingList :: [Int16] -> Encoding # omitField :: Int16 -> Bool #
ToJSON Int32
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: Int32 -> Value # toEncoding :: Int32 -> Encoding # toJSONList :: [Int32] -> Value # toEncodingList :: [Int32] -> Encoding # omitField :: Int32 -> Bool #
ToJSON Int64
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: Int64 -> Value # toEncoding :: Int64 -> Encoding # toJSONList :: [Int64] -> Value # toEncodingList :: [Int64] -> Encoding # omitField :: Int64 -> Bool #
ToJSON Int8
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: Int8 -> Value # toEncoding :: Int8 -> Encoding # toJSONList :: [Int8] -> Value # toEncodingList :: [Int8] -> Encoding # omitField :: Int8 -> Bool #
ToJSON Word16
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: Word16 -> Value # toEncoding :: Word16 -> Encoding # toJSONList :: [Word16] -> Value # toEncodingList :: [Word16] -> Encoding # omitField :: Word16 -> Bool #
ToJSON Word32
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: Word32 -> Value # toEncoding :: Word32 -> Encoding # toJSONList :: [Word32] -> Value # toEncodingList :: [Word32] -> Encoding # omitField :: Word32 -> Bool #
ToJSON Word64
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: Word64 -> Value # toEncoding :: Word64 -> Encoding # toJSONList :: [Word64] -> Value # toEncodingList :: [Word64] -> Encoding # omitField :: Word64 -> Bool #
ToJSON Word8
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: Word8 -> Value # toEncoding :: Word8 -> Encoding # toJSONList :: [Word8] -> Value # toEncodingList :: [Word8] -> Encoding # omitField :: Word8 -> Bool #
ToJSON Ordering
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: Ordering -> Value # toEncoding :: Ordering -> Encoding # toJSONList :: [Ordering] -> Value # toEncodingList :: [Ordering] -> Encoding # omitField :: Ordering -> Bool #
ToJSON TLSegComment Source #
Instance details Defined in GTVM.SCP.TL Methods toJSON :: TLSegComment -> Value # toEncoding :: TLSegComment -> Encoding # toJSONList :: [TLSegComment] -> Value # toEncodingList :: [TLSegComment] -> Encoding # omitField :: TLSegComment -> Bool #
ToJSON URI	Since: aeson-2.2.0.0
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: URI -> Value # toEncoding :: URI -> Encoding # toJSONList :: [URI] -> Value # toEncodingList :: [URI] -> Encoding # omitField :: URI -> Bool #
ToJSON Scientific
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: Scientific -> Value # toEncoding :: Scientific -> Encoding # toJSONList :: [Scientific] -> Value # toEncodingList :: [Scientific] -> Encoding # omitField :: Scientific -> Bool #
ToJSON Text
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: Text -> Value # toEncoding :: Text -> Encoding # toJSONList :: [Text] -> Value # toEncodingList :: [Text] -> Encoding # omitField :: Text -> Bool #
ToJSON Text
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: Text -> Value # toEncoding :: Text -> Encoding # toJSONList :: [Text] -> Value # toEncodingList :: [Text] -> Encoding # omitField :: Text -> Bool #
ToJSON ShortText	Since: aeson-2.0.2.0
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: ShortText -> Value # toEncoding :: ShortText -> Encoding # toJSONList :: [ShortText] -> Value # toEncodingList :: [ShortText] -> Encoding # omitField :: ShortText -> Bool #
ToJSON CalendarDiffDays
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: CalendarDiffDays -> Value # toEncoding :: CalendarDiffDays -> Encoding # toJSONList :: [CalendarDiffDays] -> Value # toEncodingList :: [CalendarDiffDays] -> Encoding # omitField :: CalendarDiffDays -> Bool #
ToJSON Day
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: Day -> Value # toEncoding :: Day -> Encoding # toJSONList :: [Day] -> Value # toEncodingList :: [Day] -> Encoding # omitField :: Day -> Bool #
ToJSON Month
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: Month -> Value # toEncoding :: Month -> Encoding # toJSONList :: [Month] -> Value # toEncodingList :: [Month] -> Encoding # omitField :: Month -> Bool #
ToJSON Quarter
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: Quarter -> Value # toEncoding :: Quarter -> Encoding # toJSONList :: [Quarter] -> Value # toEncodingList :: [Quarter] -> Encoding # omitField :: Quarter -> Bool #
ToJSON QuarterOfYear
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: QuarterOfYear -> Value # toEncoding :: QuarterOfYear -> Encoding # toJSONList :: [QuarterOfYear] -> Value # toEncodingList :: [QuarterOfYear] -> Encoding # omitField :: QuarterOfYear -> Bool #
ToJSON DayOfWeek
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: DayOfWeek -> Value # toEncoding :: DayOfWeek -> Encoding # toJSONList :: [DayOfWeek] -> Value # toEncodingList :: [DayOfWeek] -> Encoding # omitField :: DayOfWeek -> Bool #
ToJSON DiffTime
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: DiffTime -> Value # toEncoding :: DiffTime -> Encoding # toJSONList :: [DiffTime] -> Value # toEncodingList :: [DiffTime] -> Encoding # omitField :: DiffTime -> Bool #
ToJSON NominalDiffTime
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: NominalDiffTime -> Value # toEncoding :: NominalDiffTime -> Encoding # toJSONList :: [NominalDiffTime] -> Value # toEncodingList :: [NominalDiffTime] -> Encoding # omitField :: NominalDiffTime -> Bool #
ToJSON SystemTime	Encoded as number
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: SystemTime -> Value # toEncoding :: SystemTime -> Encoding # toJSONList :: [SystemTime] -> Value # toEncodingList :: [SystemTime] -> Encoding # omitField :: SystemTime -> Bool #
ToJSON UTCTime
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: UTCTime -> Value # toEncoding :: UTCTime -> Encoding # toJSONList :: [UTCTime] -> Value # toEncodingList :: [UTCTime] -> Encoding # omitField :: UTCTime -> Bool #
ToJSON CalendarDiffTime
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: CalendarDiffTime -> Value # toEncoding :: CalendarDiffTime -> Encoding # toJSONList :: [CalendarDiffTime] -> Value # toEncodingList :: [CalendarDiffTime] -> Encoding # omitField :: CalendarDiffTime -> Bool #
ToJSON LocalTime
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: LocalTime -> Value # toEncoding :: LocalTime -> Encoding # toJSONList :: [LocalTime] -> Value # toEncodingList :: [LocalTime] -> Encoding # omitField :: LocalTime -> Bool #
ToJSON TimeOfDay
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: TimeOfDay -> Value # toEncoding :: TimeOfDay -> Encoding # toJSONList :: [TimeOfDay] -> Value # toEncodingList :: [TimeOfDay] -> Encoding # omitField :: TimeOfDay -> Bool #
ToJSON ZonedTime
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: ZonedTime -> Value # toEncoding :: ZonedTime -> Encoding # toJSONList :: [ZonedTime] -> Value # toEncodingList :: [ZonedTime] -> Encoding # omitField :: ZonedTime -> Bool #
ToJSON UUID
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: UUID -> Value # toEncoding :: UUID -> Encoding # toJSONList :: [UUID] -> Value # toEncodingList :: [UUID] -> Encoding # omitField :: UUID -> Bool #
ToJSON Integer
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: Integer -> Value # toEncoding :: Integer -> Encoding # toJSONList :: [Integer] -> Value # toEncodingList :: [Integer] -> Encoding # omitField :: Integer -> Bool #
ToJSON Natural
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: Natural -> Value # toEncoding :: Natural -> Encoding # toJSONList :: [Natural] -> Value # toEncodingList :: [Natural] -> Encoding # omitField :: Natural -> Bool #
ToJSON ()
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: () -> Value # toEncoding :: () -> Encoding # toJSONList :: [()] -> Value # toEncodingList :: [()] -> Encoding # omitField :: () -> Bool #
ToJSON Bool
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: Bool -> Value # toEncoding :: Bool -> Encoding # toJSONList :: [Bool] -> Value # toEncodingList :: [Bool] -> Encoding # omitField :: Bool -> Bool #
ToJSON Char
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: Char -> Value # toEncoding :: Char -> Encoding # toJSONList :: [Char] -> Value # toEncodingList :: [Char] -> Encoding # omitField :: Char -> Bool #
ToJSON Double
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: Double -> Value # toEncoding :: Double -> Encoding # toJSONList :: [Double] -> Value # toEncodingList :: [Double] -> Encoding # omitField :: Double -> Bool #
ToJSON Float
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: Float -> Value # toEncoding :: Float -> Encoding # toJSONList :: [Float] -> Value # toEncodingList :: [Float] -> Encoding # omitField :: Float -> Bool #
ToJSON Int
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: Int -> Value # toEncoding :: Int -> Encoding # toJSONList :: [Int] -> Value # toEncodingList :: [Int] -> Encoding # omitField :: Int -> Bool #
ToJSON Word
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: Word -> Value # toEncoding :: Word -> Encoding # toJSONList :: [Word] -> Value # toEncodingList :: [Word] -> Encoding # omitField :: Word -> Bool #
ToJSON v => ToJSON (KeyMap v)
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: KeyMap v -> Value # toEncoding :: KeyMap v -> Encoding # toJSONList :: [KeyMap v] -> Value # toEncodingList :: [KeyMap v] -> Encoding # omitField :: KeyMap v -> Bool #
ToJSON a => ToJSON (First a)
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: First a -> Value # toEncoding :: First a -> Encoding # toJSONList :: [First a] -> Value # toEncodingList :: [First a] -> Encoding # omitField :: First a -> Bool #
ToJSON a => ToJSON (Last a)
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: Last a -> Value # toEncoding :: Last a -> Encoding # toJSONList :: [Last a] -> Value # toEncodingList :: [Last a] -> Encoding # omitField :: Last a -> Bool #
ToJSON a => ToJSON (Max a)
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: Max a -> Value # toEncoding :: Max a -> Encoding # toJSONList :: [Max a] -> Value # toEncodingList :: [Max a] -> Encoding # omitField :: Max a -> Bool #
ToJSON a => ToJSON (Min a)
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: Min a -> Value # toEncoding :: Min a -> Encoding # toJSONList :: [Min a] -> Value # toEncodingList :: [Min a] -> Encoding # omitField :: Min a -> Bool #
ToJSON a => ToJSON (WrappedMonoid a)
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: WrappedMonoid a -> Value # toEncoding :: WrappedMonoid a -> Encoding # toJSONList :: [WrappedMonoid a] -> Value # toEncodingList :: [WrappedMonoid a] -> Encoding # omitField :: WrappedMonoid a -> Bool #
ToJSON a => ToJSON (IntMap a)
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: IntMap a -> Value # toEncoding :: IntMap a -> Encoding # toJSONList :: [IntMap a] -> Value # toEncodingList :: [IntMap a] -> Encoding # omitField :: IntMap a -> Bool #
ToJSON a => ToJSON (Seq a)
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: Seq a -> Value # toEncoding :: Seq a -> Encoding # toJSONList :: [Seq a] -> Value # toEncodingList :: [Seq a] -> Encoding # omitField :: Seq a -> Bool #
ToJSON a => ToJSON (Set a)
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: Set a -> Value # toEncoding :: Set a -> Encoding # toJSONList :: [Set a] -> Value # toEncodingList :: [Set a] -> Encoding # omitField :: Set a -> Bool #
ToJSON v => ToJSON (Tree v)
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: Tree v -> Value # toEncoding :: Tree v -> Encoding # toJSONList :: [Tree v] -> Value # toEncodingList :: [Tree v] -> Encoding # omitField :: Tree v -> Bool #
ToJSON1 f => ToJSON (Fix f)	Since: aeson-1.5.3.0
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: Fix f -> Value # toEncoding :: Fix f -> Encoding # toJSONList :: [Fix f] -> Value # toEncodingList :: [Fix f] -> Encoding # omitField :: Fix f -> Bool #
(ToJSON1 f, Functor f) => ToJSON (Mu f)	Since: aeson-1.5.3.0
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: Mu f -> Value # toEncoding :: Mu f -> Encoding # toJSONList :: [Mu f] -> Value # toEncodingList :: [Mu f] -> Encoding # omitField :: Mu f -> Bool #
(ToJSON1 f, Functor f) => ToJSON (Nu f)	Since: aeson-1.5.3.0
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: Nu f -> Value # toEncoding :: Nu f -> Encoding # toJSONList :: [Nu f] -> Value # toEncodingList :: [Nu f] -> Encoding # omitField :: Nu f -> Bool #
ToJSON a => ToJSON (DNonEmpty a)	Since: aeson-1.5.3.0
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: DNonEmpty a -> Value # toEncoding :: DNonEmpty a -> Encoding # toJSONList :: [DNonEmpty a] -> Value # toEncodingList :: [DNonEmpty a] -> Encoding # omitField :: DNonEmpty a -> Bool #
ToJSON a => ToJSON (DList a)
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: DList a -> Value # toEncoding :: DList a -> Encoding # toJSONList :: [DList a] -> Value # toEncodingList :: [DList a] -> Encoding # omitField :: DList a -> Bool #
ToJSON a => ToJSON (NonEmpty a)
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: NonEmpty a -> Value # toEncoding :: NonEmpty a -> Encoding # toJSONList :: [NonEmpty a] -> Value # toEncodingList :: [NonEmpty a] -> Encoding # omitField :: NonEmpty a -> Bool #
ToJSON a => ToJSON (Identity a)
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: Identity a -> Value # toEncoding :: Identity a -> Encoding # toJSONList :: [Identity a] -> Value # toEncodingList :: [Identity a] -> Encoding # omitField :: Identity a -> Bool #
ToJSON a => ToJSON (First a)
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: First a -> Value # toEncoding :: First a -> Encoding # toJSONList :: [First a] -> Value # toEncodingList :: [First a] -> Encoding # omitField :: First a -> Bool #
ToJSON a => ToJSON (Last a)
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: Last a -> Value # toEncoding :: Last a -> Encoding # toJSONList :: [Last a] -> Value # toEncodingList :: [Last a] -> Encoding # omitField :: Last a -> Bool #
ToJSON a => ToJSON (Down a)	Since: aeson-2.2.0.0
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: Down a -> Value # toEncoding :: Down a -> Encoding # toJSONList :: [Down a] -> Value # toEncodingList :: [Down a] -> Encoding # omitField :: Down a -> Bool #
ToJSON a => ToJSON (Dual a)
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: Dual a -> Value # toEncoding :: Dual a -> Encoding # toJSONList :: [Dual a] -> Value # toEncodingList :: [Dual a] -> Encoding # omitField :: Dual a -> Bool #
ToJSON a => ToJSON (Product a)	Since: aeson-2.2.3.0
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: Product a -> Value # toEncoding :: Product a -> Encoding # toJSONList :: [Product a] -> Value # toEncodingList :: [Product a] -> Encoding # omitField :: Product a -> Bool #
ToJSON a => ToJSON (Sum a)	Since: aeson-2.2.3.0
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: Sum a -> Value # toEncoding :: Sum a -> Encoding # toJSONList :: [Sum a] -> Value # toEncodingList :: [Sum a] -> Encoding # omitField :: Sum a -> Bool #
(Generic a, GToJSON' Value Zero (Rep a), GToJSON' Encoding Zero (Rep a)) => ToJSON (Generically a)	Since: aeson-2.1.0.0
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: Generically a -> Value # toEncoding :: Generically a -> Encoding # toJSONList :: [Generically a] -> Value # toEncodingList :: [Generically a] -> Encoding # omitField :: Generically a -> Bool #
(ToJSON a, Integral a) => ToJSON (Ratio a)
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: Ratio a -> Value # toEncoding :: Ratio a -> Encoding # toJSONList :: [Ratio a] -> Value # toEncodingList :: [Ratio a] -> Encoding # omitField :: Ratio a -> Bool #
ToJSON (W322Block 'Weak) Source #
Instance details Defined in GTVM.SCP Methods toJSON :: W322Block 'Weak -> Value # toEncoding :: W322Block 'Weak -> Encoding # toJSONList :: [W322Block 'Weak] -> Value # toEncodingList :: [W322Block 'Weak] -> Encoding # omitField :: W322Block 'Weak -> Bool #
ToJSON (SomeBase t)
Instance details Defined in Path.Posix Methods toJSON :: SomeBase t -> Value # toEncoding :: SomeBase t -> Encoding # toJSONList :: [SomeBase t] -> Value # toEncodingList :: [SomeBase t] -> Encoding # omitField :: SomeBase t -> Bool #
ToJSON (SomeBase t)
Instance details Defined in Path.Windows Methods toJSON :: SomeBase t -> Value # toEncoding :: SomeBase t -> Encoding # toJSONList :: [SomeBase t] -> Value # toEncodingList :: [SomeBase t] -> Encoding # omitField :: SomeBase t -> Bool #
ToJSON a => ToJSON (Array a)
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: Array a -> Value # toEncoding :: Array a -> Encoding # toJSONList :: [Array a] -> Value # toEncodingList :: [Array a] -> Encoding # omitField :: Array a -> Bool #
(Prim a, ToJSON a) => ToJSON (PrimArray a)
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: PrimArray a -> Value # toEncoding :: PrimArray a -> Encoding # toJSONList :: [PrimArray a] -> Value # toEncodingList :: [PrimArray a] -> Encoding # omitField :: PrimArray a -> Bool #
ToJSON a => ToJSON (SmallArray a)
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: SmallArray a -> Value # toEncoding :: SmallArray a -> Encoding # toJSONList :: [SmallArray a] -> Value # toEncodingList :: [SmallArray a] -> Encoding # omitField :: SmallArray a -> Bool #
ToJSON a => ToJSON (Maybe a)	Since: aeson-1.5.3.0
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: Maybe a -> Value # toEncoding :: Maybe a -> Encoding # toJSONList :: [Maybe a] -> Value # toEncodingList :: [Maybe a] -> Encoding # omitField :: Maybe a -> Bool #
ToJSON a => ToJSON (HashSet a)
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: HashSet a -> Value # toEncoding :: HashSet a -> Encoding # toJSONList :: [HashSet a] -> Value # toEncodingList :: [HashSet a] -> Encoding # omitField :: HashSet a -> Bool #
ToJSON a => ToJSON (Vector a)
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: Vector a -> Value # toEncoding :: Vector a -> Encoding # toJSONList :: [Vector a] -> Value # toEncodingList :: [Vector a] -> Encoding # omitField :: Vector a -> Bool #
(Prim a, ToJSON a) => ToJSON (Vector a)
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: Vector a -> Value # toEncoding :: Vector a -> Encoding # toJSONList :: [Vector a] -> Value # toEncodingList :: [Vector a] -> Encoding # omitField :: Vector a -> Bool #
(Storable a, ToJSON a) => ToJSON (Vector a)
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: Vector a -> Value # toEncoding :: Vector a -> Encoding # toJSONList :: [Vector a] -> Value # toEncodingList :: [Vector a] -> Encoding # omitField :: Vector a -> Bool #
(Vector Vector a, ToJSON a) => ToJSON (Vector a)
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: Vector a -> Value # toEncoding :: Vector a -> Encoding # toJSONList :: [Vector a] -> Value # toEncodingList :: [Vector a] -> Encoding # omitField :: Vector a -> Bool #
ToJSON a => ToJSON (Maybe a)
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: Maybe a -> Value # toEncoding :: Maybe a -> Encoding # toJSONList :: [Maybe a] -> Value # toEncodingList :: [Maybe a] -> Encoding # omitField :: Maybe a -> Bool #
ToJSON a => ToJSON (Solo a)	Since: aeson-2.0.2.0
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: Solo a -> Value # toEncoding :: Solo a -> Encoding # toJSONList :: [Solo a] -> Value # toEncodingList :: [Solo a] -> Encoding # omitField :: Solo a -> Bool #
ToJSON a => ToJSON [a]
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: [a] -> Value # toEncoding :: [a] -> Encoding # toJSONList :: [[a]] -> Value # toEncodingList :: [[a]] -> Encoding # omitField :: [a] -> Bool #
HasResolution a => ToJSON (Fixed a)
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: Fixed a -> Value # toEncoding :: Fixed a -> Encoding # toJSONList :: [Fixed a] -> Value # toEncodingList :: [Fixed a] -> Encoding # omitField :: Fixed a -> Bool #
(ToJSON v, ToJSONKey k) => ToJSON (Map k v)
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: Map k v -> Value # toEncoding :: Map k v -> Encoding # toJSONList :: [Map k v] -> Value # toEncodingList :: [Map k v] -> Encoding # omitField :: Map k v -> Bool #
(ToJSON a, ToJSON b) => ToJSON (Either a b)
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: Either a b -> Value # toEncoding :: Either a b -> Encoding # toJSONList :: [Either a b] -> Value # toEncodingList :: [Either a b] -> Encoding # omitField :: Either a b -> Bool #
ToJSON (Proxy a)
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: Proxy a -> Value # toEncoding :: Proxy a -> Encoding # toJSONList :: [Proxy a] -> Value # toEncodingList :: [Proxy a] -> Encoding # omitField :: Proxy a -> Bool #
ToJSON a => ToJSON (AW32Pairs 'Weak a) Source #
Instance details Defined in GTVM.SCP Methods toJSON :: AW32Pairs 'Weak a -> Value # toEncoding :: AW32Pairs 'Weak a -> Encoding # toJSONList :: [AW32Pairs 'Weak a] -> Value # toEncodingList :: [AW32Pairs 'Weak a] -> Encoding # omitField :: AW32Pairs 'Weak a -> Bool #
ToJSON a => ToJSON (Seg 'Weak a) Source #
Instance details Defined in GTVM.SCP Methods toJSON :: Seg 'Weak a -> Value # toEncoding :: Seg 'Weak a -> Encoding # toJSONList :: [Seg 'Weak a] -> Value # toEncodingList :: [Seg 'Weak a] -> Encoding # omitField :: Seg 'Weak a -> Bool #
ToJSON a => ToJSON (Seg05Text 'Weak a) Source #
Instance details Defined in GTVM.SCP Methods toJSON :: Seg05Text 'Weak a -> Value # toEncoding :: Seg05Text 'Weak a -> Encoding # toJSONList :: [Seg05Text 'Weak a] -> Value # toEncodingList :: [Seg05Text 'Weak a] -> Encoding # omitField :: Seg05Text 'Weak a -> Bool #
(ToJSON (f a), ToJSON a) => ToJSON (TLSeg f a) Source #
Instance details Defined in GTVM.SCP.TL Methods toJSON :: TLSeg f a -> Value # toEncoding :: TLSeg f a -> Encoding # toJSONList :: [TLSeg f a] -> Value # toEncodingList :: [TLSeg f a] -> Encoding # omitField :: TLSeg f a -> Bool #
(ToJSON (f a), ToJSON a) => ToJSON (TLSeg22 f a) Source #
Instance details Defined in GTVM.SCP.TL Methods toJSON :: TLSeg22 f a -> Value # toEncoding :: TLSeg22 f a -> Encoding # toJSONList :: [TLSeg22 f a] -> Value # toEncodingList :: [TLSeg22 f a] -> Encoding # omitField :: TLSeg22 f a -> Bool #
(ToJSON (f a), ToJSON a) => ToJSON (TLSegChoice f a) Source #
Instance details Defined in GTVM.SCP.TL Methods toJSON :: TLSegChoice f a -> Value # toEncoding :: TLSegChoice f a -> Encoding # toJSONList :: [TLSegChoice f a] -> Value # toEncodingList :: [TLSegChoice f a] -> Encoding # omitField :: TLSegChoice f a -> Bool #
(ToJSON (f a), ToJSON a) => ToJSON (TLSegTextbox f a) Source #
Instance details Defined in GTVM.SCP.TL Methods toJSON :: TLSegTextbox f a -> Value # toEncoding :: TLSegTextbox f a -> Encoding # toJSONList :: [TLSegTextbox f a] -> Value # toEncodingList :: [TLSegTextbox f a] -> Encoding # omitField :: TLSegTextbox f a -> Bool #
ToJSON (Path b t)
Instance details Defined in Path.Internal.Posix Methods toJSON :: Path b t -> Value # toEncoding :: Path b t -> Encoding # toJSONList :: [Path b t] -> Value # toEncodingList :: [Path b t] -> Encoding # omitField :: Path b t -> Bool #
ToJSON (Path b t)
Instance details Defined in Path.Internal.Windows Methods toJSON :: Path b t -> Value # toEncoding :: Path b t -> Encoding # toJSONList :: [Path b t] -> Value # toEncodingList :: [Path b t] -> Encoding # omitField :: Path b t -> Bool #
(ToJSON a, ToJSON b) => ToJSON (Either a b)	Since: aeson-1.5.3.0
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: Either a b -> Value # toEncoding :: Either a b -> Encoding # toJSONList :: [Either a b] -> Value # toEncodingList :: [Either a b] -> Encoding # omitField :: Either a b -> Bool #
(ToJSON a, ToJSON b) => ToJSON (These a b)	Since: aeson-1.5.3.0
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: These a b -> Value # toEncoding :: These a b -> Encoding # toJSONList :: [These a b] -> Value # toEncodingList :: [These a b] -> Encoding # omitField :: These a b -> Bool #
(ToJSON a, ToJSON b) => ToJSON (Pair a b)	Since: aeson-1.5.3.0
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: Pair a b -> Value # toEncoding :: Pair a b -> Encoding # toJSONList :: [Pair a b] -> Value # toEncodingList :: [Pair a b] -> Encoding # omitField :: Pair a b -> Bool #
(ToJSON a, ToJSON b) => ToJSON (These a b)	Since: aeson-1.5.1.0
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: These a b -> Value # toEncoding :: These a b -> Encoding # toJSONList :: [These a b] -> Value # toEncodingList :: [These a b] -> Encoding # omitField :: These a b -> Bool #
(ToJSON v, ToJSONKey k) => ToJSON (HashMap k v)
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: HashMap k v -> Value # toEncoding :: HashMap k v -> Encoding # toJSONList :: [HashMap k v] -> Value # toEncodingList :: [HashMap k v] -> Encoding # omitField :: HashMap k v -> Bool #
(ToJSON a, ToJSON b) => ToJSON (a, b)
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: (a, b) -> Value # toEncoding :: (a, b) -> Encoding # toJSONList :: [(a, b)] -> Value # toEncodingList :: [(a, b)] -> Encoding # omitField :: (a, b) -> Bool #
ToJSON a => ToJSON (Const a b)
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: Const a b -> Value # toEncoding :: Const a b -> Encoding # toJSONList :: [Const a b] -> Value # toEncodingList :: [Const a b] -> Encoding # omitField :: Const a b -> Bool #
ToJSON b => ToJSON (Tagged a b)
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: Tagged a b -> Value # toEncoding :: Tagged a b -> Encoding # toJSONList :: [Tagged a b] -> Value # toEncodingList :: [Tagged a b] -> Encoding # omitField :: Tagged a b -> Bool #
(ToJSON1 f, ToJSON1 g, ToJSON a) => ToJSON (These1 f g a)	Since: aeson-1.5.1.0
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: These1 f g a -> Value # toEncoding :: These1 f g a -> Encoding # toJSONList :: [These1 f g a] -> Value # toEncodingList :: [These1 f g a] -> Encoding # omitField :: These1 f g a -> Bool #
(ToJSON a, ToJSON b, ToJSON c) => ToJSON (a, b, c)
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: (a, b, c) -> Value # toEncoding :: (a, b, c) -> Encoding # toJSONList :: [(a, b, c)] -> Value # toEncodingList :: [(a, b, c)] -> Encoding # omitField :: (a, b, c) -> Bool #
(ToJSON1 f, ToJSON1 g, ToJSON a) => ToJSON (Product f g a)
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: Product f g a -> Value # toEncoding :: Product f g a -> Encoding # toJSONList :: [Product f g a] -> Value # toEncodingList :: [Product f g a] -> Encoding # omitField :: Product f g a -> Bool #
(ToJSON1 f, ToJSON1 g, ToJSON a) => ToJSON (Sum f g a)
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: Sum f g a -> Value # toEncoding :: Sum f g a -> Encoding # toJSONList :: [Sum f g a] -> Value # toEncodingList :: [Sum f g a] -> Encoding # omitField :: Sum f g a -> Bool #
(ToJSON a, ToJSON b, ToJSON c, ToJSON d) => ToJSON (a, b, c, d)
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: (a, b, c, d) -> Value # toEncoding :: (a, b, c, d) -> Encoding # toJSONList :: [(a, b, c, d)] -> Value # toEncodingList :: [(a, b, c, d)] -> Encoding # omitField :: (a, b, c, d) -> Bool #
(ToJSON1 f, ToJSON1 g, ToJSON a) => ToJSON (Compose f g a)
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: Compose f g a -> Value # toEncoding :: Compose f g a -> Encoding # toJSONList :: [Compose f g a] -> Value # toEncodingList :: [Compose f g a] -> Encoding # omitField :: Compose f g a -> Bool #
(ToJSON a, ToJSON b, ToJSON c, ToJSON d, ToJSON e) => ToJSON (a, b, c, d, e)
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: (a, b, c, d, e) -> Value # toEncoding :: (a, b, c, d, e) -> Encoding # toJSONList :: [(a, b, c, d, e)] -> Value # toEncodingList :: [(a, b, c, d, e)] -> Encoding # omitField :: (a, b, c, d, e) -> Bool #
(ToJSON a, ToJSON b, ToJSON c, ToJSON d, ToJSON e, ToJSON f) => ToJSON (a, b, c, d, e, f)
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: (a, b, c, d, e, f) -> Value # toEncoding :: (a, b, c, d, e, f) -> Encoding # toJSONList :: [(a, b, c, d, e, f)] -> Value # toEncodingList :: [(a, b, c, d, e, f)] -> Encoding # omitField :: (a, b, c, d, e, f) -> Bool #
(ToJSON a, ToJSON b, ToJSON c, ToJSON d, ToJSON e, ToJSON f, ToJSON g) => ToJSON (a, b, c, d, e, f, g)
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: (a, b, c, d, e, f, g) -> Value # toEncoding :: (a, b, c, d, e, f, g) -> Encoding # toJSONList :: [(a, b, c, d, e, f, g)] -> Value # toEncodingList :: [(a, b, c, d, e, f, g)] -> Encoding # omitField :: (a, b, c, d, e, f, g) -> Bool #
(ToJSON a, ToJSON b, ToJSON c, ToJSON d, ToJSON e, ToJSON f, ToJSON g, ToJSON h) => ToJSON (a, b, c, d, e, f, g, h)
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: (a, b, c, d, e, f, g, h) -> Value # toEncoding :: (a, b, c, d, e, f, g, h) -> Encoding # toJSONList :: [(a, b, c, d, e, f, g, h)] -> Value # toEncodingList :: [(a, b, c, d, e, f, g, h)] -> Encoding # omitField :: (a, b, c, d, e, f, g, h) -> Bool #
(ToJSON a, ToJSON b, ToJSON c, ToJSON d, ToJSON e, ToJSON f, ToJSON g, ToJSON h, ToJSON i) => ToJSON (a, b, c, d, e, f, g, h, i)
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: (a, b, c, d, e, f, g, h, i) -> Value # toEncoding :: (a, b, c, d, e, f, g, h, i) -> Encoding # toJSONList :: [(a, b, c, d, e, f, g, h, i)] -> Value # toEncodingList :: [(a, b, c, d, e, f, g, h, i)] -> Encoding # omitField :: (a, b, c, d, e, f, g, h, i) -> Bool #
(ToJSON a, ToJSON b, ToJSON c, ToJSON d, ToJSON e, ToJSON f, ToJSON g, ToJSON h, ToJSON i, ToJSON j) => ToJSON (a, b, c, d, e, f, g, h, i, j)
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: (a, b, c, d, e, f, g, h, i, j) -> Value # toEncoding :: (a, b, c, d, e, f, g, h, i, j) -> Encoding # toJSONList :: [(a, b, c, d, e, f, g, h, i, j)] -> Value # toEncodingList :: [(a, b, c, d, e, f, g, h, i, j)] -> Encoding # omitField :: (a, b, c, d, e, f, g, h, i, j) -> Bool #
(ToJSON a, ToJSON b, ToJSON c, ToJSON d, ToJSON e, ToJSON f, ToJSON g, ToJSON h, ToJSON i, ToJSON j, ToJSON k) => ToJSON (a, b, c, d, e, f, g, h, i, j, k)
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: (a, b, c, d, e, f, g, h, i, j, k) -> Value # toEncoding :: (a, b, c, d, e, f, g, h, i, j, k) -> Encoding # toJSONList :: [(a, b, c, d, e, f, g, h, i, j, k)] -> Value # toEncodingList :: [(a, b, c, d, e, f, g, h, i, j, k)] -> Encoding # omitField :: (a, b, c, d, e, f, g, h, i, j, k) -> Bool #
(ToJSON a, ToJSON b, ToJSON c, ToJSON d, ToJSON e, ToJSON f, ToJSON g, ToJSON h, ToJSON i, ToJSON j, ToJSON k, ToJSON l) => ToJSON (a, b, c, d, e, f, g, h, i, j, k, l)
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: (a, b, c, d, e, f, g, h, i, j, k, l) -> Value # toEncoding :: (a, b, c, d, e, f, g, h, i, j, k, l) -> Encoding # toJSONList :: [(a, b, c, d, e, f, g, h, i, j, k, l)] -> Value # toEncodingList :: [(a, b, c, d, e, f, g, h, i, j, k, l)] -> Encoding # omitField :: (a, b, c, d, e, f, g, h, i, j, k, l) -> Bool #
(ToJSON a, ToJSON b, ToJSON c, ToJSON d, ToJSON e, ToJSON f, ToJSON g, ToJSON h, ToJSON i, ToJSON j, ToJSON k, ToJSON l, ToJSON m) => ToJSON (a, b, c, d, e, f, g, h, i, j, k, l, m)
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: (a, b, c, d, e, f, g, h, i, j, k, l, m) -> Value # toEncoding :: (a, b, c, d, e, f, g, h, i, j, k, l, m) -> Encoding # toJSONList :: [(a, b, c, d, e, f, g, h, i, j, k, l, m)] -> Value # toEncodingList :: [(a, b, c, d, e, f, g, h, i, j, k, l, m)] -> Encoding # omitField :: (a, b, c, d, e, f, g, h, i, j, k, l, m) -> Bool #
(ToJSON a, ToJSON b, ToJSON c, ToJSON d, ToJSON e, ToJSON f, ToJSON g, ToJSON h, ToJSON i, ToJSON j, ToJSON k, ToJSON l, ToJSON m, ToJSON n) => ToJSON (a, b, c, d, e, f, g, h, i, j, k, l, m, n)
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: (a, b, c, d, e, f, g, h, i, j, k, l, m, n) -> Value # toEncoding :: (a, b, c, d, e, f, g, h, i, j, k, l, m, n) -> Encoding # toJSONList :: [(a, b, c, d, e, f, g, h, i, j, k, l, m, n)] -> Value # toEncodingList :: [(a, b, c, d, e, f, g, h, i, j, k, l, m, n)] -> Encoding # omitField :: (a, b, c, d, e, f, g, h, i, j, k, l, m, n) -> Bool #
(ToJSON a, ToJSON b, ToJSON c, ToJSON d, ToJSON e, ToJSON f, ToJSON g, ToJSON h, ToJSON i, ToJSON j, ToJSON k, ToJSON l, ToJSON m, ToJSON n, ToJSON o) => ToJSON (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o)
Instance details Defined in Data.Aeson.Types.ToJSON Methods toJSON :: (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o) -> Value # toEncoding :: (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o) -> Encoding # toJSONList :: [(a, b, c, d, e, f, g, h, i, j, k, l, m, n, o)] -> Value # toEncodingList :: [(a, b, c, d, e, f, g, h, i, j, k, l, m, n, o)] -> Encoding # omitField :: (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o) -> Bool #

genericToEncoding :: (Generic a, GToJSON' Encoding Zero (Rep a)) => Options -> a -> Encoding #

A configurable generic JSON encoder. This function applied to defaultOptions is used as the default for toEncoding when the type is an instance of Generic.

genericToJSON :: (Generic a, GToJSON' Value Zero (Rep a)) => Options -> a -> Value #

A configurable generic JSON creator. This function applied to defaultOptions is used as the default for toJSON when the type is an instance of Generic.

class FromJSON a where #

A type that can be converted from JSON, with the possibility of failure.

In many cases, you can get the compiler to generate parsing code for you (see below). To begin, let's cover writing an instance by hand.

There are various reasons a conversion could fail. For example, an Object could be missing a required key, an Array could be of the wrong size, or a value could be of an incompatible type.

The basic ways to signal a failed conversion are as follows:

fail yields a custom error message: it is the recommended way of reporting a failure;
empty (or mzero) is uninformative: use it when the error is meant to be caught by some (<|>);
typeMismatch can be used to report a failure when the encountered value is not of the expected JSON type; unexpected is an appropriate alternative when more than one type may be expected, or to keep the expected type implicit.

prependFailure (or modifyFailure) add more information to a parser's error messages.

An example type and instance using typeMismatch and prependFailure:

-- Allow ourselves to write Text literals. {-# LANGUAGE OverloadedStrings #-} data Coord = Coord { x :: Double, y :: Double } instance FromJSON Coord where parseJSON (Object v) = Coord <$> v .: "x" <*> v .: "y" -- We do not expect a non-Object value here. -- We could use empty to fail, but typeMismatch -- gives a much more informative error message. parseJSON invalid = prependFailure "parsing Coord failed, " (typeMismatch "Object" invalid)

For this common case of only being concerned with a single type of JSON value, the functions withObject, withScientific, etc. are provided. Their use is to be preferred when possible, since they are more terse. Using withObject, we can rewrite the above instance (assuming the same language extension and data type) as:

instance FromJSON Coord where parseJSON = withObject "Coord" $ \v -> Coord <$> v .: "x" <*> v .: "y"

Instead of manually writing your FromJSON instance, there are two options to do it automatically:

Data.Aeson.TH provides Template Haskell functions which will derive an instance at compile time. The generated instance is optimized for your type so it will probably be more efficient than the following option.
The compiler can provide a default generic implementation for parseJSON.

To use the second, simply add a deriving Generic clause to your datatype and declare a FromJSON instance for your datatype without giving a definition for parseJSON.

For example, the previous example can be simplified to just:

{-# LANGUAGE DeriveGeneric #-} import GHC.Generics data Coord = Coord { x :: Double, y :: Double } deriving Generic instance FromJSON Coord

or using the DerivingVia extension

deriving via Generically Coord instance FromJSON Coord

The default implementation will be equivalent to parseJSON = genericParseJSON defaultOptions; if you need different options, you can customize the generic decoding by defining:

customOptions = defaultOptions { fieldLabelModifier = map toUpper } instance FromJSON Coord where parseJSON = genericParseJSON customOptions

Minimal complete definition

Nothing

Methods

parseJSON :: Value -> Parser a #

default parseJSON :: (Generic a, GFromJSON Zero (Rep a)) => Value -> Parser a #

parseJSONList :: Value -> Parser [a] #

omittedField :: Maybe a #

Default value for optional fields. Used by (.:?=) operator, and Generics and TH deriving with allowOmittedFields = True (default).

Since: aeson-2.2.0.0

Instances

Instances details

FromJSON Key
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser Key # parseJSONList :: Value -> Parser [Key] # omittedField :: Maybe Key #
FromJSON DotNetTime
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser DotNetTime # parseJSONList :: Value -> Parser [DotNetTime] # omittedField :: Maybe DotNetTime #
FromJSON Value
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser Value # parseJSONList :: Value -> Parser [Value] # omittedField :: Maybe Value #
FromJSON IntSet
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser IntSet # parseJSONList :: Value -> Parser [IntSet] # omittedField :: Maybe IntSet #
FromJSON Void
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser Void # parseJSONList :: Value -> Parser [Void] # omittedField :: Maybe Void #
FromJSON All	Since: aeson-2.2.3.0
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser All # parseJSONList :: Value -> Parser [All] # omittedField :: Maybe All #
FromJSON Any	Since: aeson-2.2.3.0
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser Any # parseJSONList :: Value -> Parser [Any] # omittedField :: Maybe Any #
FromJSON Version
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser Version # parseJSONList :: Value -> Parser [Version] # omittedField :: Maybe Version #
FromJSON CTime
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser CTime # parseJSONList :: Value -> Parser [CTime] # omittedField :: Maybe CTime #
FromJSON Int16
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser Int16 # parseJSONList :: Value -> Parser [Int16] # omittedField :: Maybe Int16 #
FromJSON Int32
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser Int32 # parseJSONList :: Value -> Parser [Int32] # omittedField :: Maybe Int32 #
FromJSON Int64
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser Int64 # parseJSONList :: Value -> Parser [Int64] # omittedField :: Maybe Int64 #
FromJSON Int8
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser Int8 # parseJSONList :: Value -> Parser [Int8] # omittedField :: Maybe Int8 #
FromJSON Word16
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser Word16 # parseJSONList :: Value -> Parser [Word16] # omittedField :: Maybe Word16 #
FromJSON Word32
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser Word32 # parseJSONList :: Value -> Parser [Word32] # omittedField :: Maybe Word32 #
FromJSON Word64
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser Word64 # parseJSONList :: Value -> Parser [Word64] # omittedField :: Maybe Word64 #
FromJSON Word8
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser Word8 # parseJSONList :: Value -> Parser [Word8] # omittedField :: Maybe Word8 #
FromJSON Ordering
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser Ordering # parseJSONList :: Value -> Parser [Ordering] # omittedField :: Maybe Ordering #
FromJSON TLSegComment Source #
Instance details Defined in GTVM.SCP.TL Methods parseJSON :: Value -> Parser TLSegComment # parseJSONList :: Value -> Parser [TLSegComment] # omittedField :: Maybe TLSegComment #
FromJSON URI	Since: aeson-2.2.0.0
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser URI # parseJSONList :: Value -> Parser [URI] # omittedField :: Maybe URI #
FromJSON Scientific
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser Scientific # parseJSONList :: Value -> Parser [Scientific] # omittedField :: Maybe Scientific #
FromJSON Text
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser Text # parseJSONList :: Value -> Parser [Text] # omittedField :: Maybe Text #
FromJSON Text
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser Text # parseJSONList :: Value -> Parser [Text] # omittedField :: Maybe Text #
FromJSON ShortText	Since: aeson-2.0.2.0
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser ShortText # parseJSONList :: Value -> Parser [ShortText] # omittedField :: Maybe ShortText #
FromJSON CalendarDiffDays
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser CalendarDiffDays # parseJSONList :: Value -> Parser [CalendarDiffDays] # omittedField :: Maybe CalendarDiffDays #
FromJSON Day
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser Day # parseJSONList :: Value -> Parser [Day] # omittedField :: Maybe Day #
FromJSON Month
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser Month # parseJSONList :: Value -> Parser [Month] # omittedField :: Maybe Month #
FromJSON Quarter
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser Quarter # parseJSONList :: Value -> Parser [Quarter] # omittedField :: Maybe Quarter #
FromJSON QuarterOfYear
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser QuarterOfYear # parseJSONList :: Value -> Parser [QuarterOfYear] # omittedField :: Maybe QuarterOfYear #
FromJSON DayOfWeek
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser DayOfWeek # parseJSONList :: Value -> Parser [DayOfWeek] # omittedField :: Maybe DayOfWeek #
FromJSON DiffTime	This instance includes a bounds check to prevent maliciously large inputs to fill up the memory of the target system. You can newtype `Scientific` and provide your own instance using `withScientific` if you want to allow larger inputs.
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser DiffTime # parseJSONList :: Value -> Parser [DiffTime] # omittedField :: Maybe DiffTime #
FromJSON NominalDiffTime	This instance includes a bounds check to prevent maliciously large inputs to fill up the memory of the target system. You can newtype `Scientific` and provide your own instance using `withScientific` if you want to allow larger inputs.
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser NominalDiffTime # parseJSONList :: Value -> Parser [NominalDiffTime] # omittedField :: Maybe NominalDiffTime #
FromJSON SystemTime
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser SystemTime # parseJSONList :: Value -> Parser [SystemTime] # omittedField :: Maybe SystemTime #
FromJSON UTCTime
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser UTCTime # parseJSONList :: Value -> Parser [UTCTime] # omittedField :: Maybe UTCTime #
FromJSON CalendarDiffTime
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser CalendarDiffTime # parseJSONList :: Value -> Parser [CalendarDiffTime] # omittedField :: Maybe CalendarDiffTime #
FromJSON LocalTime
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser LocalTime # parseJSONList :: Value -> Parser [LocalTime] # omittedField :: Maybe LocalTime #
FromJSON TimeOfDay
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser TimeOfDay # parseJSONList :: Value -> Parser [TimeOfDay] # omittedField :: Maybe TimeOfDay #
FromJSON ZonedTime	Supported string formats: `YYYY-MM-DD HH:MMZ` `YYYY-MM-DD HH:MM:SSZ` `YYYY-MM-DD HH:MM:SS.SSSZ` The first space may instead be a `T`, and the second space is optional. The `Z` represents UTC. The `Z` may be replaced with a time zone offset of the form `+0000` or `-08:00`, where the first two digits are hours, the `:` is optional and the second two digits (also optional) are minutes.
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser ZonedTime # parseJSONList :: Value -> Parser [ZonedTime] # omittedField :: Maybe ZonedTime #
FromJSON UUID
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser UUID # parseJSONList :: Value -> Parser [UUID] # omittedField :: Maybe UUID #
FromJSON Integer	This instance includes a bounds check to prevent maliciously large inputs to fill up the memory of the target system. You can newtype `Scientific` and provide your own instance using `withScientific` if you want to allow larger inputs.
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser Integer # parseJSONList :: Value -> Parser [Integer] # omittedField :: Maybe Integer #
FromJSON Natural
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser Natural # parseJSONList :: Value -> Parser [Natural] # omittedField :: Maybe Natural #
FromJSON ()
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser () # parseJSONList :: Value -> Parser [()] # omittedField :: Maybe () #
FromJSON Bool
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser Bool # parseJSONList :: Value -> Parser [Bool] # omittedField :: Maybe Bool #
FromJSON Char
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser Char # parseJSONList :: Value -> Parser [Char] # omittedField :: Maybe Char #
FromJSON Double
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser Double # parseJSONList :: Value -> Parser [Double] # omittedField :: Maybe Double #
FromJSON Float
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser Float # parseJSONList :: Value -> Parser [Float] # omittedField :: Maybe Float #
FromJSON Int
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser Int # parseJSONList :: Value -> Parser [Int] # omittedField :: Maybe Int #
FromJSON Word
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser Word # parseJSONList :: Value -> Parser [Word] # omittedField :: Maybe Word #
FromJSON v => FromJSON (KeyMap v)	Since: aeson-2.0.1.0
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser (KeyMap v) # parseJSONList :: Value -> Parser [KeyMap v] # omittedField :: Maybe (KeyMap v) #
FromJSON a => FromJSON (First a)
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser (First a) # parseJSONList :: Value -> Parser [First a] # omittedField :: Maybe (First a) #
FromJSON a => FromJSON (Last a)
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser (Last a) # parseJSONList :: Value -> Parser [Last a] # omittedField :: Maybe (Last a) #
FromJSON a => FromJSON (Max a)
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser (Max a) # parseJSONList :: Value -> Parser [Max a] # omittedField :: Maybe (Max a) #
FromJSON a => FromJSON (Min a)
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser (Min a) # parseJSONList :: Value -> Parser [Min a] # omittedField :: Maybe (Min a) #
FromJSON a => FromJSON (WrappedMonoid a)
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser (WrappedMonoid a) # parseJSONList :: Value -> Parser [WrappedMonoid a] # omittedField :: Maybe (WrappedMonoid a) #
FromJSON a => FromJSON (IntMap a)
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser (IntMap a) # parseJSONList :: Value -> Parser [IntMap a] # omittedField :: Maybe (IntMap a) #
FromJSON a => FromJSON (Seq a)
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser (Seq a) # parseJSONList :: Value -> Parser [Seq a] # omittedField :: Maybe (Seq a) #
(Ord a, FromJSON a) => FromJSON (Set a)
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser (Set a) # parseJSONList :: Value -> Parser [Set a] # omittedField :: Maybe (Set a) #
FromJSON v => FromJSON (Tree v)
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser (Tree v) # parseJSONList :: Value -> Parser [Tree v] # omittedField :: Maybe (Tree v) #
FromJSON1 f => FromJSON (Fix f)	Since: aeson-1.5.3.0
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser (Fix f) # parseJSONList :: Value -> Parser [Fix f] # omittedField :: Maybe (Fix f) #
(FromJSON1 f, Functor f) => FromJSON (Mu f)	Since: aeson-1.5.3.0
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser (Mu f) # parseJSONList :: Value -> Parser [Mu f] # omittedField :: Maybe (Mu f) #
(FromJSON1 f, Functor f) => FromJSON (Nu f)	Since: aeson-1.5.3.0
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser (Nu f) # parseJSONList :: Value -> Parser [Nu f] # omittedField :: Maybe (Nu f) #
FromJSON a => FromJSON (DNonEmpty a)	Since: aeson-1.5.3.0
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser (DNonEmpty a) # parseJSONList :: Value -> Parser [DNonEmpty a] # omittedField :: Maybe (DNonEmpty a) #
FromJSON a => FromJSON (DList a)
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser (DList a) # parseJSONList :: Value -> Parser [DList a] # omittedField :: Maybe (DList a) #
FromJSON a => FromJSON (NonEmpty a)
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser (NonEmpty a) # parseJSONList :: Value -> Parser [NonEmpty a] # omittedField :: Maybe (NonEmpty a) #
FromJSON a => FromJSON (Identity a)
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser (Identity a) # parseJSONList :: Value -> Parser [Identity a] # omittedField :: Maybe (Identity a) #
FromJSON a => FromJSON (First a)
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser (First a) # parseJSONList :: Value -> Parser [First a] # omittedField :: Maybe (First a) #
FromJSON a => FromJSON (Last a)
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser (Last a) # parseJSONList :: Value -> Parser [Last a] # omittedField :: Maybe (Last a) #
FromJSON a => FromJSON (Down a)	Since: aeson-2.2.0.0
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser (Down a) # parseJSONList :: Value -> Parser [Down a] # omittedField :: Maybe (Down a) #
FromJSON a => FromJSON (Dual a)
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser (Dual a) # parseJSONList :: Value -> Parser [Dual a] # omittedField :: Maybe (Dual a) #
FromJSON a => FromJSON (Product a)	Since: aeson-2.2.3.0
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser (Product a) # parseJSONList :: Value -> Parser [Product a] # omittedField :: Maybe (Product a) #
FromJSON a => FromJSON (Sum a)	Since: aeson-2.2.3.0
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser (Sum a) # parseJSONList :: Value -> Parser [Sum a] # omittedField :: Maybe (Sum a) #
(Generic a, GFromJSON Zero (Rep a)) => FromJSON (Generically a)	Since: aeson-2.1.0.0
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser (Generically a) # parseJSONList :: Value -> Parser [Generically a] # omittedField :: Maybe (Generically a) #
(FromJSON a, Integral a) => FromJSON (Ratio a)
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser (Ratio a) # parseJSONList :: Value -> Parser [Ratio a] # omittedField :: Maybe (Ratio a) #
FromJSON (W322Block 'Weak) Source #
Instance details Defined in GTVM.SCP Methods parseJSON :: Value -> Parser (W322Block 'Weak) # parseJSONList :: Value -> Parser [W322Block 'Weak] # omittedField :: Maybe (W322Block 'Weak) #
FromJSON (SomeBase Dir)
Instance details Defined in Path.Posix Methods parseJSON :: Value -> Parser (SomeBase Dir) # parseJSONList :: Value -> Parser [SomeBase Dir] # omittedField :: Maybe (SomeBase Dir) #
FromJSON (SomeBase File)
Instance details Defined in Path.Posix Methods parseJSON :: Value -> Parser (SomeBase File) # parseJSONList :: Value -> Parser [SomeBase File] # omittedField :: Maybe (SomeBase File) #
FromJSON (SomeBase Dir)
Instance details Defined in Path.Windows Methods parseJSON :: Value -> Parser (SomeBase Dir) # parseJSONList :: Value -> Parser [SomeBase Dir] # omittedField :: Maybe (SomeBase Dir) #
FromJSON (SomeBase File)
Instance details Defined in Path.Windows Methods parseJSON :: Value -> Parser (SomeBase File) # parseJSONList :: Value -> Parser [SomeBase File] # omittedField :: Maybe (SomeBase File) #
FromJSON a => FromJSON (Array a)
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser (Array a) # parseJSONList :: Value -> Parser [Array a] # omittedField :: Maybe (Array a) #
(Prim a, FromJSON a) => FromJSON (PrimArray a)
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser (PrimArray a) # parseJSONList :: Value -> Parser [PrimArray a] # omittedField :: Maybe (PrimArray a) #
FromJSON a => FromJSON (SmallArray a)
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser (SmallArray a) # parseJSONList :: Value -> Parser [SmallArray a] # omittedField :: Maybe (SmallArray a) #
FromJSON a => FromJSON (Maybe a)	Since: aeson-1.5.3.0
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser (Maybe a) # parseJSONList :: Value -> Parser [Maybe a] # omittedField :: Maybe (Maybe a) #
(Eq a, Hashable a, FromJSON a) => FromJSON (HashSet a)
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser (HashSet a) # parseJSONList :: Value -> Parser [HashSet a] # omittedField :: Maybe (HashSet a) #
FromJSON a => FromJSON (Vector a)
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser (Vector a) # parseJSONList :: Value -> Parser [Vector a] # omittedField :: Maybe (Vector a) #
(Prim a, FromJSON a) => FromJSON (Vector a)
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser (Vector a) # parseJSONList :: Value -> Parser [Vector a] # omittedField :: Maybe (Vector a) #
(Storable a, FromJSON a) => FromJSON (Vector a)
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser (Vector a) # parseJSONList :: Value -> Parser [Vector a] # omittedField :: Maybe (Vector a) #
(Vector Vector a, FromJSON a) => FromJSON (Vector a)
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser (Vector a) # parseJSONList :: Value -> Parser [Vector a] # omittedField :: Maybe (Vector a) #
FromJSON a => FromJSON (Maybe a)
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser (Maybe a) # parseJSONList :: Value -> Parser [Maybe a] # omittedField :: Maybe (Maybe a) #
FromJSON a => FromJSON (Solo a)	Since: aeson-2.0.2.0
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser (Solo a) # parseJSONList :: Value -> Parser [Solo a] # omittedField :: Maybe (Solo a) #
FromJSON a => FromJSON [a]
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser [a] # parseJSONList :: Value -> Parser [[a]] # omittedField :: Maybe [a] #
HasResolution a => FromJSON (Fixed a)	This instance includes a bounds check to prevent maliciously large inputs to fill up the memory of the target system. You can newtype `Scientific` and provide your own instance using `withScientific` if you want to allow larger inputs.
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser (Fixed a) # parseJSONList :: Value -> Parser [Fixed a] # omittedField :: Maybe (Fixed a) #
(FromJSONKey k, Ord k, FromJSON v) => FromJSON (Map k v)
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser (Map k v) # parseJSONList :: Value -> Parser [Map k v] # omittedField :: Maybe (Map k v) #
(FromJSON a, FromJSON b) => FromJSON (Either a b)
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser (Either a b) # parseJSONList :: Value -> Parser [Either a b] # omittedField :: Maybe (Either a b) #
FromJSON (Proxy a)
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser (Proxy a) # parseJSONList :: Value -> Parser [Proxy a] # omittedField :: Maybe (Proxy a) #
FromJSON a => FromJSON (AW32Pairs 'Weak a) Source #
Instance details Defined in GTVM.SCP Methods parseJSON :: Value -> Parser (AW32Pairs 'Weak a) # parseJSONList :: Value -> Parser [AW32Pairs 'Weak a] # omittedField :: Maybe (AW32Pairs 'Weak a) #
FromJSON a => FromJSON (Seg 'Weak a) Source #
Instance details Defined in GTVM.SCP Methods parseJSON :: Value -> Parser (Seg 'Weak a) # parseJSONList :: Value -> Parser [Seg 'Weak a] # omittedField :: Maybe (Seg 'Weak a) #
FromJSON a => FromJSON (Seg05Text 'Weak a) Source #
Instance details Defined in GTVM.SCP Methods parseJSON :: Value -> Parser (Seg05Text 'Weak a) # parseJSONList :: Value -> Parser [Seg05Text 'Weak a] # omittedField :: Maybe (Seg05Text 'Weak a) #
(FromJSON (f a), FromJSON a) => FromJSON (TLSeg f a) Source #
Instance details Defined in GTVM.SCP.TL Methods parseJSON :: Value -> Parser (TLSeg f a) # parseJSONList :: Value -> Parser [TLSeg f a] # omittedField :: Maybe (TLSeg f a) #
(FromJSON (f a), FromJSON a) => FromJSON (TLSeg22 f a) Source #
Instance details Defined in GTVM.SCP.TL Methods parseJSON :: Value -> Parser (TLSeg22 f a) # parseJSONList :: Value -> Parser [TLSeg22 f a] # omittedField :: Maybe (TLSeg22 f a) #
(FromJSON (f a), FromJSON a) => FromJSON (TLSegChoice f a) Source #
Instance details Defined in GTVM.SCP.TL Methods parseJSON :: Value -> Parser (TLSegChoice f a) # parseJSONList :: Value -> Parser [TLSegChoice f a] # omittedField :: Maybe (TLSegChoice f a) #
(FromJSON (f a), FromJSON a) => FromJSON (TLSegTextbox f a) Source #
Instance details Defined in GTVM.SCP.TL Methods parseJSON :: Value -> Parser (TLSegTextbox f a) # parseJSONList :: Value -> Parser [TLSegTextbox f a] # omittedField :: Maybe (TLSegTextbox f a) #
FromJSON (Path Abs Dir)
Instance details Defined in Path.Posix Methods parseJSON :: Value -> Parser (Path Abs Dir) # parseJSONList :: Value -> Parser [Path Abs Dir] # omittedField :: Maybe (Path Abs Dir) #
FromJSON (Path Abs File)
Instance details Defined in Path.Posix Methods parseJSON :: Value -> Parser (Path Abs File) # parseJSONList :: Value -> Parser [Path Abs File] # omittedField :: Maybe (Path Abs File) #
FromJSON (Path Rel Dir)
Instance details Defined in Path.Posix Methods parseJSON :: Value -> Parser (Path Rel Dir) # parseJSONList :: Value -> Parser [Path Rel Dir] # omittedField :: Maybe (Path Rel Dir) #
FromJSON (Path Rel File)
Instance details Defined in Path.Posix Methods parseJSON :: Value -> Parser (Path Rel File) # parseJSONList :: Value -> Parser [Path Rel File] # omittedField :: Maybe (Path Rel File) #
FromJSON (Path Abs Dir)
Instance details Defined in Path.Windows Methods parseJSON :: Value -> Parser (Path Abs Dir) # parseJSONList :: Value -> Parser [Path Abs Dir] # omittedField :: Maybe (Path Abs Dir) #
FromJSON (Path Abs File)
Instance details Defined in Path.Windows Methods parseJSON :: Value -> Parser (Path Abs File) # parseJSONList :: Value -> Parser [Path Abs File] # omittedField :: Maybe (Path Abs File) #
FromJSON (Path Rel Dir)
Instance details Defined in Path.Windows Methods parseJSON :: Value -> Parser (Path Rel Dir) # parseJSONList :: Value -> Parser [Path Rel Dir] # omittedField :: Maybe (Path Rel Dir) #
FromJSON (Path Rel File)
Instance details Defined in Path.Windows Methods parseJSON :: Value -> Parser (Path Rel File) # parseJSONList :: Value -> Parser [Path Rel File] # omittedField :: Maybe (Path Rel File) #
(FromJSON a, FromJSON b) => FromJSON (Either a b)	Since: aeson-1.5.3.0
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser (Either a b) # parseJSONList :: Value -> Parser [Either a b] # omittedField :: Maybe (Either a b) #
(FromJSON a, FromJSON b) => FromJSON (These a b)	Since: aeson-1.5.3.0
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser (These a b) # parseJSONList :: Value -> Parser [These a b] # omittedField :: Maybe (These a b) #
(FromJSON a, FromJSON b) => FromJSON (Pair a b)	Since: aeson-1.5.3.0
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser (Pair a b) # parseJSONList :: Value -> Parser [Pair a b] # omittedField :: Maybe (Pair a b) #
(FromJSON a, FromJSON b) => FromJSON (These a b)	Since: aeson-1.5.1.0
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser (These a b) # parseJSONList :: Value -> Parser [These a b] # omittedField :: Maybe (These a b) #
(FromJSON v, FromJSONKey k, Eq k, Hashable k) => FromJSON (HashMap k v)
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser (HashMap k v) # parseJSONList :: Value -> Parser [HashMap k v] # omittedField :: Maybe (HashMap k v) #
(FromJSON a, FromJSON b) => FromJSON (a, b)
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser (a, b) # parseJSONList :: Value -> Parser [(a, b)] # omittedField :: Maybe (a, b) #
FromJSON a => FromJSON (Const a b)
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser (Const a b) # parseJSONList :: Value -> Parser [Const a b] # omittedField :: Maybe (Const a b) #
FromJSON b => FromJSON (Tagged a b)
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser (Tagged a b) # parseJSONList :: Value -> Parser [Tagged a b] # omittedField :: Maybe (Tagged a b) #
(FromJSON1 f, FromJSON1 g, FromJSON a) => FromJSON (These1 f g a)	Since: aeson-1.5.1.0
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser (These1 f g a) # parseJSONList :: Value -> Parser [These1 f g a] # omittedField :: Maybe (These1 f g a) #
(FromJSON a, FromJSON b, FromJSON c) => FromJSON (a, b, c)
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser (a, b, c) # parseJSONList :: Value -> Parser [(a, b, c)] # omittedField :: Maybe (a, b, c) #
(FromJSON1 f, FromJSON1 g, FromJSON a) => FromJSON (Product f g a)
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser (Product f g a) # parseJSONList :: Value -> Parser [Product f g a] # omittedField :: Maybe (Product f g a) #
(FromJSON1 f, FromJSON1 g, FromJSON a) => FromJSON (Sum f g a)
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser (Sum f g a) # parseJSONList :: Value -> Parser [Sum f g a] # omittedField :: Maybe (Sum f g a) #
(FromJSON a, FromJSON b, FromJSON c, FromJSON d) => FromJSON (a, b, c, d)
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser (a, b, c, d) # parseJSONList :: Value -> Parser [(a, b, c, d)] # omittedField :: Maybe (a, b, c, d) #
(FromJSON1 f, FromJSON1 g, FromJSON a) => FromJSON (Compose f g a)
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser (Compose f g a) # parseJSONList :: Value -> Parser [Compose f g a] # omittedField :: Maybe (Compose f g a) #
(FromJSON a, FromJSON b, FromJSON c, FromJSON d, FromJSON e) => FromJSON (a, b, c, d, e)
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser (a, b, c, d, e) # parseJSONList :: Value -> Parser [(a, b, c, d, e)] # omittedField :: Maybe (a, b, c, d, e) #
(FromJSON a, FromJSON b, FromJSON c, FromJSON d, FromJSON e, FromJSON f) => FromJSON (a, b, c, d, e, f)
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser (a, b, c, d, e, f) # parseJSONList :: Value -> Parser [(a, b, c, d, e, f)] # omittedField :: Maybe (a, b, c, d, e, f) #
(FromJSON a, FromJSON b, FromJSON c, FromJSON d, FromJSON e, FromJSON f, FromJSON g) => FromJSON (a, b, c, d, e, f, g)
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser (a, b, c, d, e, f, g) # parseJSONList :: Value -> Parser [(a, b, c, d, e, f, g)] # omittedField :: Maybe (a, b, c, d, e, f, g) #
(FromJSON a, FromJSON b, FromJSON c, FromJSON d, FromJSON e, FromJSON f, FromJSON g, FromJSON h) => FromJSON (a, b, c, d, e, f, g, h)
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser (a, b, c, d, e, f, g, h) # parseJSONList :: Value -> Parser [(a, b, c, d, e, f, g, h)] # omittedField :: Maybe (a, b, c, d, e, f, g, h) #
(FromJSON a, FromJSON b, FromJSON c, FromJSON d, FromJSON e, FromJSON f, FromJSON g, FromJSON h, FromJSON i) => FromJSON (a, b, c, d, e, f, g, h, i)
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser (a, b, c, d, e, f, g, h, i) # parseJSONList :: Value -> Parser [(a, b, c, d, e, f, g, h, i)] # omittedField :: Maybe (a, b, c, d, e, f, g, h, i) #
(FromJSON a, FromJSON b, FromJSON c, FromJSON d, FromJSON e, FromJSON f, FromJSON g, FromJSON h, FromJSON i, FromJSON j) => FromJSON (a, b, c, d, e, f, g, h, i, j)
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser (a, b, c, d, e, f, g, h, i, j) # parseJSONList :: Value -> Parser [(a, b, c, d, e, f, g, h, i, j)] # omittedField :: Maybe (a, b, c, d, e, f, g, h, i, j) #
(FromJSON a, FromJSON b, FromJSON c, FromJSON d, FromJSON e, FromJSON f, FromJSON g, FromJSON h, FromJSON i, FromJSON j, FromJSON k) => FromJSON (a, b, c, d, e, f, g, h, i, j, k)
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser (a, b, c, d, e, f, g, h, i, j, k) # parseJSONList :: Value -> Parser [(a, b, c, d, e, f, g, h, i, j, k)] # omittedField :: Maybe (a, b, c, d, e, f, g, h, i, j, k) #
(FromJSON a, FromJSON b, FromJSON c, FromJSON d, FromJSON e, FromJSON f, FromJSON g, FromJSON h, FromJSON i, FromJSON j, FromJSON k, FromJSON l) => FromJSON (a, b, c, d, e, f, g, h, i, j, k, l)
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser (a, b, c, d, e, f, g, h, i, j, k, l) # parseJSONList :: Value -> Parser [(a, b, c, d, e, f, g, h, i, j, k, l)] # omittedField :: Maybe (a, b, c, d, e, f, g, h, i, j, k, l) #
(FromJSON a, FromJSON b, FromJSON c, FromJSON d, FromJSON e, FromJSON f, FromJSON g, FromJSON h, FromJSON i, FromJSON j, FromJSON k, FromJSON l, FromJSON m) => FromJSON (a, b, c, d, e, f, g, h, i, j, k, l, m)
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser (a, b, c, d, e, f, g, h, i, j, k, l, m) # parseJSONList :: Value -> Parser [(a, b, c, d, e, f, g, h, i, j, k, l, m)] # omittedField :: Maybe (a, b, c, d, e, f, g, h, i, j, k, l, m) #
(FromJSON a, FromJSON b, FromJSON c, FromJSON d, FromJSON e, FromJSON f, FromJSON g, FromJSON h, FromJSON i, FromJSON j, FromJSON k, FromJSON l, FromJSON m, FromJSON n) => FromJSON (a, b, c, d, e, f, g, h, i, j, k, l, m, n)
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser (a, b, c, d, e, f, g, h, i, j, k, l, m, n) # parseJSONList :: Value -> Parser [(a, b, c, d, e, f, g, h, i, j, k, l, m, n)] # omittedField :: Maybe (a, b, c, d, e, f, g, h, i, j, k, l, m, n) #
(FromJSON a, FromJSON b, FromJSON c, FromJSON d, FromJSON e, FromJSON f, FromJSON g, FromJSON h, FromJSON i, FromJSON j, FromJSON k, FromJSON l, FromJSON m, FromJSON n, FromJSON o) => FromJSON (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o)
Instance details Defined in Data.Aeson.Types.FromJSON Methods parseJSON :: Value -> Parser (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o) # parseJSONList :: Value -> Parser [(a, b, c, d, e, f, g, h, i, j, k, l, m, n, o)] # omittedField :: Maybe (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o) #

genericParseJSON :: (Generic a, GFromJSON Zero (Rep a)) => Options -> Value -> Parser a #

A configurable generic JSON decoder. This function applied to defaultOptions is used as the default for parseJSON when the type is an instance of Generic.