    {-# LANGUAGE CPP #-}
    {-# LANGUAGE DeriveDataTypeable #-}
    {-# LANGUAGE DeriveGeneric #-}
    {-# LANGUAGE GeneralizedNewtypeDeriving #-}
    {-# LANGUAGE NoImplicitPrelude #-}
    {-# LANGUAGE Rank2Types #-}
    #if __GLASGOW_HASKELL__ >= 800
    -- a) THQ works on cross-compilers and unregisterised GHCs
    -- b) may make compilation faster as no dynamic loading is ever needed (not sure about this)
    -- c) removes one hindrance to have code inferred as SafeHaskell safe
    {-# LANGUAGE TemplateHaskellQuotes #-}
    #else
    {-# LANGUAGE TemplateHaskell #-}
    #endif

    -- |
    -- Module:      Data.Aeson.Types.Internal
    -- Copyright:   (c) 2011-2016 Bryan O'Sullivan
    --              (c) 2011 MailRank, Inc.
    -- License:     BSD3
    -- Maintainer:  Bryan O'Sullivan <bos@serpentine.com>
    -- Stability:   experimental
    -- Portability: portable
    --
    -- Types for working with JSON data.

    module Data.Aeson.Types.Internal
        (
        -- * Core JSON types
          Value(..)
        , Array
        , emptyArray, isEmptyArray
        , Pair
        , Object
        , emptyObject

        -- * Type conversion
        , Parser
        , Result(..)
        , IResult(..)
        , JSONPathElement(..)
        , JSONPath
        , iparse
        , parse
        , parseEither
        , parseMaybe
        , parseFail
        , modifyFailure
        , prependFailure
        , parserThrowError
        , parserCatchError
        , formatError
        , formatPath
        , formatRelativePath
        , (<?>)
        -- * Constructors and accessors
        , object

        -- * Generic and TH encoding configuration
        , Options(
              fieldLabelModifier
            , constructorTagModifier
            , allNullaryToStringTag
            , omitNothingFields
            , sumEncoding
            , unwrapUnaryRecords
            , tagSingleConstructors
            , rejectUnknownFields
            )

        , SumEncoding(..)
        , JSONKeyOptions(keyModifier)
        , defaultOptions
        , defaultTaggedObject
        , defaultJSONKeyOptions

        -- * Used for changing CamelCase names into something else.
        , camelTo
        , camelTo2

        -- * Other types
        , DotNetTime(..)
        ) where

    import Prelude.Compat

    import Control.Applicative (Alternative(..))
    import Control.Arrow (first)
    import Control.DeepSeq (NFData(..))
    import Control.Monad (MonadPlus(..), ap)
    import Data.Char (isLower, isUpper, toLower, isAlpha, isAlphaNum)
    import Data.Data (Data)
    import Data.Foldable (foldl')
    import Data.HashMap.Strict (HashMap)
    import Data.Hashable (Hashable(..))
    import Data.List (intercalate)
    import Data.Scientific (Scientific)
    import Data.String (IsString(..))
    import Data.Text (Text, pack, unpack)
    import Data.Time (UTCTime)
    import Data.Time.Format (FormatTime)
    import Data.Typeable (Typeable)
    import Data.Vector (Vector)
    import GHC.Generics (Generic)
    import qualified Control.Monad as Monad
    import qualified Control.Monad.Fail as Fail
    import qualified Data.HashMap.Strict as H
    import qualified Data.Scientific as S
    import qualified Data.Vector as V
    import qualified Language.Haskell.TH.Syntax as TH

    #if !MIN_VERSION_unordered_containers(0,2,6)
    import Data.List (sort)
    #endif

    -- | Elements of a JSON path used to describe the location of an
    -- error.
    data JSONPathElement = Key Text
                           -- ^ JSON path element of a key into an object,
                           -- \"object.key\".
                         | Index {-# UNPACK #-} !Int
                           -- ^ JSON path element of an index into an
                           -- array, \"array[index]\".
                           deriving (JSONPathElement -> JSONPathElement -> Bool
    (JSONPathElement -> JSONPathElement -> Bool)
    -> (JSONPathElement -> JSONPathElement -> Bool)
    -> Eq JSONPathElement
    forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
    /= :: JSONPathElement -> JSONPathElement -> Bool
    $c/= :: JSONPathElement -> JSONPathElement -> Bool
    == :: JSONPathElement -> JSONPathElement -> Bool
    $c== :: JSONPathElement -> JSONPathElement -> Bool
    Eq, Int -> JSONPathElement -> ShowS
    [JSONPathElement] -> ShowS
    JSONPathElement -> String
    (Int -> JSONPathElement -> ShowS)
    -> (JSONPathElement -> String)
    -> ([JSONPathElement] -> ShowS)
    -> Show JSONPathElement
    forall a.
    (Int -> a -> ShowS) -> (a -> String) -> ([a] -> ShowS) -> Show a
    showList :: [JSONPathElement] -> ShowS
    $cshowList :: [JSONPathElement] -> ShowS
    show :: JSONPathElement -> String
    $cshow :: JSONPathElement -> String
    showsPrec :: Int -> JSONPathElement -> ShowS
    $cshowsPrec :: Int -> JSONPathElement -> ShowS
    Show, Typeable, Eq JSONPathElement
    Eq JSONPathElement =>
    (JSONPathElement -> JSONPathElement -> Ordering)
    -> (JSONPathElement -> JSONPathElement -> Bool)
    -> (JSONPathElement -> JSONPathElement -> Bool)
    -> (JSONPathElement -> JSONPathElement -> Bool)
    -> (JSONPathElement -> JSONPathElement -> Bool)
    -> (JSONPathElement -> JSONPathElement -> JSONPathElement)
    -> (JSONPathElement -> JSONPathElement -> JSONPathElement)
    -> Ord JSONPathElement
    JSONPathElement -> JSONPathElement -> Bool
    JSONPathElement -> JSONPathElement -> Ordering
    JSONPathElement -> JSONPathElement -> JSONPathElement
    forall a.
    Eq a =>
    (a -> a -> Ordering)
    -> (a -> a -> Bool)
    -> (a -> a -> Bool)
    -> (a -> a -> Bool)
    -> (a -> a -> Bool)
    -> (a -> a -> a)
    -> (a -> a -> a)
    -> Ord a
    min :: JSONPathElement -> JSONPathElement -> JSONPathElement
    $cmin :: JSONPathElement -> JSONPathElement -> JSONPathElement
    max :: JSONPathElement -> JSONPathElement -> JSONPathElement
    $cmax :: JSONPathElement -> JSONPathElement -> JSONPathElement
    >= :: JSONPathElement -> JSONPathElement -> Bool
    $c>= :: JSONPathElement -> JSONPathElement -> Bool
    > :: JSONPathElement -> JSONPathElement -> Bool
    $c> :: JSONPathElement -> JSONPathElement -> Bool
    <= :: JSONPathElement -> JSONPathElement -> Bool
    $c<= :: JSONPathElement -> JSONPathElement -> Bool
    < :: JSONPathElement -> JSONPathElement -> Bool
    $c< :: JSONPathElement -> JSONPathElement -> Bool
    compare :: JSONPathElement -> JSONPathElement -> Ordering
    $ccompare :: JSONPathElement -> JSONPathElement -> Ordering
    $cp1Ord :: Eq JSONPathElement
    Ord)
    type JSONPath = [JSONPathElement]

    -- | The internal result of running a 'Parser'.
    data IResult a = IError JSONPath String
                   | ISuccess a
                   deriving (IResult a -> IResult a -> Bool
    (IResult a -> IResult a -> Bool)
    -> (IResult a -> IResult a -> Bool) -> Eq (IResult a)
    forall a. Eq a => IResult a -> IResult a -> Bool
    forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
    /= :: IResult a -> IResult a -> Bool
    $c/= :: forall a. Eq a => IResult a -> IResult a -> Bool
    == :: IResult a -> IResult a -> Bool
    $c== :: forall a. Eq a => IResult a -> IResult a -> Bool
    Eq, Int -> IResult a -> ShowS
    [IResult a] -> ShowS
    IResult a -> String
    (Int -> IResult a -> ShowS)
    -> (IResult a -> String)
    -> ([IResult a] -> ShowS)
    -> Show (IResult a)
    forall a. Show a => Int -> IResult a -> ShowS
    forall a. Show a => [IResult a] -> ShowS
    forall a. Show a => IResult a -> String
    forall a.
    (Int -> a -> ShowS) -> (a -> String) -> ([a] -> ShowS) -> Show a
    showList :: [IResult a] -> ShowS
    $cshowList :: forall a. Show a => [IResult a] -> ShowS
    show :: IResult a -> String
    $cshow :: forall a. Show a => IResult a -> String
    showsPrec :: Int -> IResult a -> ShowS
    $cshowsPrec :: forall a. Show a => Int -> IResult a -> ShowS
    Show, Typeable)

    -- | The result of running a 'Parser'.
    data Result a = Error String
                  | Success a
                    deriving (Result a -> Result a -> Bool
    (Result a -> Result a -> Bool)
    -> (Result a -> Result a -> Bool) -> Eq (Result a)
    forall a. Eq a => Result a -> Result a -> Bool
    forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
    /= :: Result a -> Result a -> Bool
    $c/= :: forall a. Eq a => Result a -> Result a -> Bool
    == :: Result a -> Result a -> Bool
    $c== :: forall a. Eq a => Result a -> Result a -> Bool
    Eq, Int -> Result a -> ShowS
    [Result a] -> ShowS
    Result a -> String
    (Int -> Result a -> ShowS)
    -> (Result a -> String) -> ([Result a] -> ShowS) -> Show (Result a)
    forall a. Show a => Int -> Result a -> ShowS
    forall a. Show a => [Result a] -> ShowS
    forall a. Show a => Result a -> String
    forall a.
    (Int -> a -> ShowS) -> (a -> String) -> ([a] -> ShowS) -> Show a
    showList :: [Result a] -> ShowS
    $cshowList :: forall a. Show a => [Result a] -> ShowS
    show :: Result a -> String
    $cshow :: forall a. Show a => Result a -> String
    showsPrec :: Int -> Result a -> ShowS
    $cshowsPrec :: forall a. Show a => Int -> Result a -> ShowS
    Show, Typeable)

    instance NFData JSONPathElement where
      rnf :: JSONPathElement -> ()
    rnf (Key t :: Text
    t)   = Text -> ()
    forall a. NFData a => a -> ()
    rnf Text
    t
      rnf (Index i :: Int
    i) = Int -> ()
    forall a. NFData a => a -> ()
    rnf Int
    i

    instance (NFData a) => NFData (IResult a) where
        rnf :: IResult a -> ()
    rnf (ISuccess a :: a
    a)      = a -> ()
    forall a. NFData a => a -> ()
    rnf a
    a
        rnf (IError path :: [JSONPathElement]
    path err :: String
    err) = [JSONPathElement] -> ()
    forall a. NFData a => a -> ()
    rnf [JSONPathElement]
    path () -> () -> ()
    forall a b. a -> b -> b
    `seq` String -> ()
    forall a. NFData a => a -> ()
    rnf String
    err

    instance (NFData a) => NFData (Result a) where
        rnf :: Result a -> ()
    rnf (Success a :: a
    a) = a -> ()
    forall a. NFData a => a -> ()
    rnf a
    a
        rnf (Error err :: String
    err) = String -> ()
    forall a. NFData a => a -> ()
    rnf String
    err

    instance Functor IResult where
        fmap :: (a -> b) -> IResult a -> IResult b
    fmap f :: a -> b
    f (ISuccess a :: a
    a)      = b -> IResult b
    forall a. a -> IResult a
    ISuccess (a -> b
    f a
    a)
        fmap _ (IError path :: [JSONPathElement]
    path err :: String
    err) = [JSONPathElement] -> String -> IResult b
    forall a. [JSONPathElement] -> String -> IResult a
    IError [JSONPathElement]
    path String
    err
        {-# INLINE fmap #-}

    instance Functor Result where
        fmap :: (a -> b) -> Result a -> Result b
    fmap f :: a -> b
    f (Success a :: a
    a) = b -> Result b
    forall a. a -> Result a
    Success (a -> b
    f a
    a)
        fmap _ (Error err :: String
    err) = String -> Result b
    forall a. String -> Result a
    Error String
    err
        {-# INLINE fmap #-}

    instance Monad.Monad IResult where
        return :: a -> IResult a
    return = a -> IResult a
    forall (f :: * -> *) a. Applicative f => a -> f a
    pure
        {-# INLINE return #-}

        ISuccess a :: a
    a      >>= :: IResult a -> (a -> IResult b) -> IResult b
    >>= k :: a -> IResult b
    k = a -> IResult b
    k a
    a
        IError path :: [JSONPathElement]
    path err :: String
    err >>= _ = [JSONPathElement] -> String -> IResult b
    forall a. [JSONPathElement] -> String -> IResult a
    IError [JSONPathElement]
    path String
    err
        {-# INLINE (>>=) #-}

    #if !(MIN_VERSION_base(4,13,0))
        fail = Fail.fail
        {-# INLINE fail #-}
    #endif

    instance Fail.MonadFail IResult where
        fail :: String -> IResult a
    fail err :: String
    err = [JSONPathElement] -> String -> IResult a
    forall a. [JSONPathElement] -> String -> IResult a
    IError [] String
    err
        {-# INLINE fail #-}

    instance Monad.Monad Result where
        return :: a -> Result a
    return = a -> Result a
    forall (f :: * -> *) a. Applicative f => a -> f a
    pure
        {-# INLINE return #-}

        Success a :: a
    a >>= :: Result a -> (a -> Result b) -> Result b
    >>= k :: a -> Result b
    k = a -> Result b
    k a
    a
        Error err :: String
    err >>= _ = String -> Result b
    forall a. String -> Result a
    Error String
    err
        {-# INLINE (>>=) #-}

    #if !(MIN_VERSION_base(4,13,0))
        fail = Fail.fail
        {-# INLINE fail #-}
    #endif

    instance Fail.MonadFail Result where
        fail :: String -> Result a
    fail err :: String
    err = String -> Result a
    forall a. String -> Result a
    Error String
    err
        {-# INLINE fail #-}

    instance Applicative IResult where
        pure :: a -> IResult a
    pure  = a -> IResult a
    forall a. a -> IResult a
    ISuccess
        {-# INLINE pure #-}
        <*> :: IResult (a -> b) -> IResult a -> IResult b
    (<*>) = IResult (a -> b) -> IResult a -> IResult b
    forall (m :: * -> *) a b. Monad m => m (a -> b) -> m a -> m b
    ap
        {-# INLINE (<*>) #-}

    instance Applicative Result where
        pure :: a -> Result a
    pure  = a -> Result a
    forall a. a -> Result a
    Success
        {-# INLINE pure #-}
        <*> :: Result (a -> b) -> Result a -> Result b
    (<*>) = Result (a -> b) -> Result a -> Result b
    forall (m :: * -> *) a b. Monad m => m (a -> b) -> m a -> m b
    ap
        {-# INLINE (<*>) #-}

    instance MonadPlus IResult where
        mzero :: IResult a
    mzero = String -> IResult a
    forall (m :: * -> *) a. MonadFail m => String -> m a
    fail "mzero"
        {-# INLINE mzero #-}
        mplus :: IResult a -> IResult a -> IResult a
    mplus a :: IResult a
    a@(ISuccess _) _ = IResult a
    a
        mplus _ b :: IResult a
    b             = IResult a
    b
        {-# INLINE mplus #-}

    instance MonadPlus Result where
        mzero :: Result a
    mzero = String -> Result a
    forall (m :: * -> *) a. MonadFail m => String -> m a
    fail "mzero"
        {-# INLINE mzero #-}
        mplus :: Result a -> Result a -> Result a
    mplus a :: Result a
    a@(Success _) _ = Result a
    a
        mplus _ b :: Result a
    b             = Result a
    b
        {-# INLINE mplus #-}

    instance Alternative IResult where
        empty :: IResult a
    empty = IResult a
    forall (m :: * -> *) a. MonadPlus m => m a
    mzero
        {-# INLINE empty #-}
        <|> :: IResult a -> IResult a -> IResult a
    (<|>) = IResult a -> IResult a -> IResult a
    forall (m :: * -> *) a. MonadPlus m => m a -> m a -> m a
    mplus
        {-# INLINE (<|>) #-}

    instance Alternative Result where
        empty :: Result a
    empty = Result a
    forall (m :: * -> *) a. MonadPlus m => m a
    mzero
        {-# INLINE empty #-}
        <|> :: Result a -> Result a -> Result a
    (<|>) = Result a -> Result a -> Result a
    forall (m :: * -> *) a. MonadPlus m => m a -> m a -> m a
    mplus
        {-# INLINE (<|>) #-}

    instance Semigroup (IResult a) where
        <> :: IResult a -> IResult a -> IResult a
    (<>) = IResult a -> IResult a -> IResult a
    forall (m :: * -> *) a. MonadPlus m => m a -> m a -> m a
    mplus
        {-# INLINE (<>) #-}

    instance Monoid (IResult a) where
        mempty :: IResult a
    mempty  = String -> IResult a
    forall (m :: * -> *) a. MonadFail m => String -> m a
    fail "mempty"
        {-# INLINE mempty #-}
        mappend :: IResult a -> IResult a -> IResult a
    mappend = IResult a -> IResult a -> IResult a
    forall a. Semigroup a => a -> a -> a
    (<>)
        {-# INLINE mappend #-}

    instance Semigroup (Result a) where
        <> :: Result a -> Result a -> Result a
    (<>) = Result a -> Result a -> Result a
    forall (m :: * -> *) a. MonadPlus m => m a -> m a -> m a
    mplus
        {-# INLINE (<>) #-}

    instance Monoid (Result a) where
        mempty :: Result a
    mempty  = String -> Result a
    forall (m :: * -> *) a. MonadFail m => String -> m a
    fail "mempty"
        {-# INLINE mempty #-}
        mappend :: Result a -> Result a -> Result a
    mappend = Result a -> Result a -> Result a
    forall a. Semigroup a => a -> a -> a
    (<>)
        {-# INLINE mappend #-}

    instance Foldable IResult where
        foldMap :: (a -> m) -> IResult a -> m
    foldMap _ (IError _ _) = m
    forall a. Monoid a => a
    mempty
        foldMap f :: a -> m
    f (ISuccess y :: a
    y) = a -> m
    f a
    y
        {-# INLINE foldMap #-}

        foldr :: (a -> b -> b) -> b -> IResult a -> b
    foldr _ z :: b
    z (IError _ _) = b
    z
        foldr f :: a -> b -> b
    f z :: b
    z (ISuccess y :: a
    y) = a -> b -> b
    f a
    y b
    z
        {-# INLINE foldr #-}

    instance Foldable Result where
        foldMap :: (a -> m) -> Result a -> m
    foldMap _ (Error _)   = m
    forall a. Monoid a => a
    mempty
        foldMap f :: a -> m
    f (Success y :: a
    y) = a -> m
    f a
    y
        {-# INLINE foldMap #-}

        foldr :: (a -> b -> b) -> b -> Result a -> b
    foldr _ z :: b
    z (Error _)   = b
    z
        foldr f :: a -> b -> b
    f z :: b
    z (Success y :: a
    y) = a -> b -> b
    f a
    y b
    z
        {-# INLINE foldr #-}

    instance Traversable IResult where
        traverse :: (a -> f b) -> IResult a -> f (IResult b)
    traverse _ (IError path :: [JSONPathElement]
    path err :: String
    err) = IResult b -> f (IResult b)
    forall (f :: * -> *) a. Applicative f => a -> f a
    pure ([JSONPathElement] -> String -> IResult b
    forall a. [JSONPathElement] -> String -> IResult a
    IError [JSONPathElement]
    path String
    err)
        traverse f :: a -> f b
    f (ISuccess a :: a
    a)      = b -> IResult b
    forall a. a -> IResult a
    ISuccess (b -> IResult b) -> f b -> f (IResult b)
    forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
    <$> a -> f b
    f a
    a
        {-# INLINE traverse #-}

    instance Traversable Result where
        traverse :: (a -> f b) -> Result a -> f (Result b)
    traverse _ (Error err :: String
    err) = Result b -> f (Result b)
    forall (f :: * -> *) a. Applicative f => a -> f a
    pure (String -> Result b
    forall a. String -> Result a
    Error String
    err)
        traverse f :: a -> f b
    f (Success a :: a
    a) = b -> Result b
    forall a. a -> Result a
    Success (b -> Result b) -> f b -> f (Result b)
    forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
    <$> a -> f b
    f a
    a
        {-# INLINE traverse #-}

    -- | Failure continuation.
    type Failure f r   = JSONPath -> String -> f r
    -- | Success continuation.
    type Success a f r = a -> f r

    -- | A JSON parser.  N.B. This might not fit your usual understanding of
    --  "parser".  Instead you might like to think of 'Parser' as a "parse result",
    -- i.e. a parser to which the input has already been applied.
    newtype Parser a = Parser {
          Parser a
    -> forall (f :: * -> *) r.
       [JSONPathElement] -> Failure f r -> Success a f r -> f r
    runParser :: forall f r.
                       JSONPath
                    -> Failure f r
                    -> Success a f r
                    -> f r
        }

    instance Monad.Monad Parser where
        m :: Parser a
    m >>= :: Parser a -> (a -> Parser b) -> Parser b
    >>= g :: a -> Parser b
    g = (forall (f :: * -> *) r.
     [JSONPathElement] -> Failure f r -> Success b f r -> f r)
    -> Parser b
    forall a.
    (forall (f :: * -> *) r.
     [JSONPathElement] -> Failure f r -> Success a f r -> f r)
    -> Parser a
    Parser ((forall (f :: * -> *) r.
      [JSONPathElement] -> Failure f r -> Success b f r -> f r)
     -> Parser b)
    -> (forall (f :: * -> *) r.
        [JSONPathElement] -> Failure f r -> Success b f r -> f r)
    -> Parser b
    forall a b. (a -> b) -> a -> b
    $ \path :: [JSONPathElement]
    path kf :: Failure f r
    kf ks :: Success b f r
    ks -> let ks' :: a -> f r
    ks' a :: a
    a = Parser b
    -> [JSONPathElement] -> Failure f r -> Success b f r -> f r
    forall a.
    Parser a
    -> forall (f :: * -> *) r.
       [JSONPathElement] -> Failure f r -> Success a f r -> f r
    runParser (a -> Parser b
    g a
    a) [JSONPathElement]
    path Failure f r
    kf Success b f r
    ks
                                           in Parser a -> [JSONPathElement] -> Failure f r -> (a -> f r) -> f r
    forall a.
    Parser a
    -> forall (f :: * -> *) r.
       [JSONPathElement] -> Failure f r -> Success a f r -> f r
    runParser Parser a
    m [JSONPathElement]
    path Failure f r
    kf a -> f r
    ks'
        {-# INLINE (>>=) #-}
        return :: a -> Parser a
    return = a -> Parser a
    forall (f :: * -> *) a. Applicative f => a -> f a
    pure
        {-# INLINE return #-}

    #if !(MIN_VERSION_base(4,13,0))
        fail = Fail.fail
        {-# INLINE fail #-}
    #endif

    instance Fail.MonadFail Parser where
        fail :: String -> Parser a
    fail msg :: String
    msg = (forall (f :: * -> *) r.
     [JSONPathElement] -> Failure f r -> Success a f r -> f r)
    -> Parser a
    forall a.
    (forall (f :: * -> *) r.
     [JSONPathElement] -> Failure f r -> Success a f r -> f r)
    -> Parser a
    Parser ((forall (f :: * -> *) r.
      [JSONPathElement] -> Failure f r -> Success a f r -> f r)
     -> Parser a)
    -> (forall (f :: * -> *) r.
        [JSONPathElement] -> Failure f r -> Success a f r -> f r)
    -> Parser a
    forall a b. (a -> b) -> a -> b
    $ \path :: [JSONPathElement]
    path kf :: Failure f r
    kf _ks :: Success a f r
    _ks -> Failure f r
    kf ([JSONPathElement] -> [JSONPathElement]
    forall a. [a] -> [a]
    reverse [JSONPathElement]
    path) String
    msg
        {-# INLINE fail #-}

    instance Functor Parser where
        fmap :: (a -> b) -> Parser a -> Parser b
    fmap f :: a -> b
    f m :: Parser a
    m = (forall (f :: * -> *) r.
     [JSONPathElement] -> Failure f r -> Success b f r -> f r)
    -> Parser b
    forall a.
    (forall (f :: * -> *) r.
     [JSONPathElement] -> Failure f r -> Success a f r -> f r)
    -> Parser a
    Parser ((forall (f :: * -> *) r.
      [JSONPathElement] -> Failure f r -> Success b f r -> f r)
     -> Parser b)
    -> (forall (f :: * -> *) r.
        [JSONPathElement] -> Failure f r -> Success b f r -> f r)
    -> Parser b
    forall a b. (a -> b) -> a -> b
    $ \path :: [JSONPathElement]
    path kf :: Failure f r
    kf ks :: Success b f r
    ks -> let ks' :: a -> f r
    ks' a :: a
    a = Success b f r
    ks (a -> b
    f a
    a)
                                            in Parser a -> [JSONPathElement] -> Failure f r -> (a -> f r) -> f r
    forall a.
    Parser a
    -> forall (f :: * -> *) r.
       [JSONPathElement] -> Failure f r -> Success a f r -> f r
    runParser Parser a
    m [JSONPathElement]
    path Failure f r
    kf a -> f r
    ks'
        {-# INLINE fmap #-}

    instance Applicative Parser where
        pure :: a -> Parser a
    pure a :: a
    a = (forall (f :: * -> *) r.
     [JSONPathElement] -> Failure f r -> Success a f r -> f r)
    -> Parser a
    forall a.
    (forall (f :: * -> *) r.
     [JSONPathElement] -> Failure f r -> Success a f r -> f r)
    -> Parser a
    Parser ((forall (f :: * -> *) r.
      [JSONPathElement] -> Failure f r -> Success a f r -> f r)
     -> Parser a)
    -> (forall (f :: * -> *) r.
        [JSONPathElement] -> Failure f r -> Success a f r -> f r)
    -> Parser a
    forall a b. (a -> b) -> a -> b
    $ \_path :: [JSONPathElement]
    _path _kf :: Failure f r
    _kf ks :: Success a f r
    ks -> Success a f r
    ks a
    a
        {-# INLINE pure #-}
        <*> :: Parser (a -> b) -> Parser a -> Parser b
    (<*>) = Parser (a -> b) -> Parser a -> Parser b
    forall a b. Parser (a -> b) -> Parser a -> Parser b
    apP
        {-# INLINE (<*>) #-}

    instance Alternative Parser where
        empty :: Parser a
    empty = String -> Parser a
    forall (m :: * -> *) a. MonadFail m => String -> m a
    fail "empty"
        {-# INLINE empty #-}
        <|> :: Parser a -> Parser a -> Parser a
    (<|>) = Parser a -> Parser a -> Parser a
    forall (m :: * -> *) a. MonadPlus m => m a -> m a -> m a
    mplus
        {-# INLINE (<|>) #-}

    instance MonadPlus Parser where
        mzero :: Parser a
    mzero = String -> Parser a
    forall (m :: * -> *) a. MonadFail m => String -> m a
    fail "mzero"
        {-# INLINE mzero #-}
        mplus :: Parser a -> Parser a -> Parser a
    mplus a :: Parser a
    a b :: Parser a
    b = (forall (f :: * -> *) r.
     [JSONPathElement] -> Failure f r -> Success a f r -> f r)
    -> Parser a
    forall a.
    (forall (f :: * -> *) r.
     [JSONPathElement] -> Failure f r -> Success a f r -> f r)
    -> Parser a
    Parser ((forall (f :: * -> *) r.
      [JSONPathElement] -> Failure f r -> Success a f r -> f r)
     -> Parser a)
    -> (forall (f :: * -> *) r.
        [JSONPathElement] -> Failure f r -> Success a f r -> f r)
    -> Parser a
    forall a b. (a -> b) -> a -> b
    $ \path :: [JSONPathElement]
    path kf :: Failure f r
    kf ks :: Success a f r
    ks -> let kf' :: p -> p -> f r
    kf' _ _ = Parser a
    -> [JSONPathElement] -> Failure f r -> Success a f r -> f r
    forall a.
    Parser a
    -> forall (f :: * -> *) r.
       [JSONPathElement] -> Failure f r -> Success a f r -> f r
    runParser Parser a
    b [JSONPathElement]
    path Failure f r
    kf Success a f r
    ks
                                             in Parser a
    -> [JSONPathElement] -> Failure f r -> Success a f r -> f r
    forall a.
    Parser a
    -> forall (f :: * -> *) r.
       [JSONPathElement] -> Failure f r -> Success a f r -> f r
    runParser Parser a
    a [JSONPathElement]
    path Failure f r
    forall p p. p -> p -> f r
    kf' Success a f r
    ks
        {-# INLINE mplus #-}

    instance Semigroup (Parser a) where
        <> :: Parser a -> Parser a -> Parser a
    (<>) = Parser a -> Parser a -> Parser a
    forall (m :: * -> *) a. MonadPlus m => m a -> m a -> m a
    mplus
        {-# INLINE (<>) #-}

    instance Monoid (Parser a) where
        mempty :: Parser a
    mempty  = String -> Parser a
    forall (m :: * -> *) a. MonadFail m => String -> m a
    fail "mempty"
        {-# INLINE mempty #-}
        mappend :: Parser a -> Parser a -> Parser a
    mappend = Parser a -> Parser a -> Parser a
    forall a. Semigroup a => a -> a -> a
    (<>)
        {-# INLINE mappend #-}

    -- | Raise a parsing failure with some custom message.
    parseFail :: String -> Parser a
    parseFail :: String -> Parser a
    parseFail = String -> Parser a
    forall (m :: * -> *) a. MonadFail m => String -> m a
    fail

    apP :: Parser (a -> b) -> Parser a -> Parser b
    apP :: Parser (a -> b) -> Parser a -> Parser b
    apP d :: Parser (a -> b)
    d e :: Parser a
    e = do
      a -> b
    b <- Parser (a -> b)
    d
      a -> b
    b (a -> b) -> Parser a -> Parser b
    forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
    <$> Parser a
    e
    {-# INLINE apP #-}

    -- | A JSON \"object\" (key\/value map).
    type Object = HashMap Text Value

    -- | A JSON \"array\" (sequence).
    type Array = Vector Value

    -- | A JSON value represented as a Haskell value.
    data Value = Object !Object
               | Array !Array
               | String !Text
               | Number !Scientific
               | Bool !Bool
               | Null
                 deriving (Value -> Value -> Bool
    (Value -> Value -> Bool) -> (Value -> Value -> Bool) -> Eq Value
    forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
    /= :: Value -> Value -> Bool
    $c/= :: Value -> Value -> Bool
    == :: Value -> Value -> Bool
    $c== :: Value -> Value -> Bool
    Eq, ReadPrec [Value]
    ReadPrec Value
    Int -> ReadS Value
    ReadS [Value]
    (Int -> ReadS Value)
    -> ReadS [Value]
    -> ReadPrec Value
    -> ReadPrec [Value]
    -> Read Value
    forall a.
    (Int -> ReadS a)
    -> ReadS [a] -> ReadPrec a -> ReadPrec [a] -> Read a
    readListPrec :: ReadPrec [Value]
    $creadListPrec :: ReadPrec [Value]
    readPrec :: ReadPrec Value
    $creadPrec :: ReadPrec Value
    readList :: ReadS [Value]
    $creadList :: ReadS [Value]
    readsPrec :: Int -> ReadS Value
    $creadsPrec :: Int -> ReadS Value
    Read, Int -> Value -> ShowS
    [Value] -> ShowS
    Value -> String
    (Int -> Value -> ShowS)
    -> (Value -> String) -> ([Value] -> ShowS) -> Show Value
    forall a.
    (Int -> a -> ShowS) -> (a -> String) -> ([a] -> ShowS) -> Show a
    showList :: [Value] -> ShowS
    $cshowList :: [Value] -> ShowS
    show :: Value -> String
    $cshow :: Value -> String
    showsPrec :: Int -> Value -> ShowS
    $cshowsPrec :: Int -> Value -> ShowS
    Show, Typeable, Typeable Value
    Constr
    DataType
    Typeable Value =>
    (forall (c :: * -> *).
     (forall d b. Data d => c (d -> b) -> d -> c b)
     -> (forall g. g -> c g) -> Value -> c Value)
    -> (forall (c :: * -> *).
        (forall b r. Data b => c (b -> r) -> c r)
        -> (forall r. r -> c r) -> Constr -> c Value)
    -> (Value -> Constr)
    -> (Value -> DataType)
    -> (forall (t :: * -> *) (c :: * -> *).
        Typeable t =>
        (forall d. Data d => c (t d)) -> Maybe (c Value))
    -> (forall (t :: * -> * -> *) (c :: * -> *).
        Typeable t =>
        (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c Value))
    -> ((forall b. Data b => b -> b) -> Value -> Value)
    -> (forall r r'.
        (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Value -> r)
    -> (forall r r'.
        (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Value -> r)
    -> (forall u. (forall d. Data d => d -> u) -> Value -> [u])
    -> (forall u. Int -> (forall d. Data d => d -> u) -> Value -> u)
    -> (forall (m :: * -> *).
        Monad m =>
        (forall d. Data d => d -> m d) -> Value -> m Value)
    -> (forall (m :: * -> *).
        MonadPlus m =>
        (forall d. Data d => d -> m d) -> Value -> m Value)
    -> (forall (m :: * -> *).
        MonadPlus m =>
        (forall d. Data d => d -> m d) -> Value -> m Value)
    -> Data Value
    Value -> Constr
    Value -> DataType
    (forall b. Data b => b -> b) -> Value -> Value
    (forall d b. Data d => c (d -> b) -> d -> c b)
    -> (forall g. g -> c g) -> Value -> c Value
    (forall b r. Data b => c (b -> r) -> c r)
    -> (forall r. r -> c r) -> Constr -> c Value
    forall a.
    Typeable a =>
    (forall (c :: * -> *).
     (forall d b. Data d => c (d -> b) -> d -> c b)
     -> (forall g. g -> c g) -> a -> c a)
    -> (forall (c :: * -> *).
        (forall b r. Data b => c (b -> r) -> c r)
        -> (forall r. r -> c r) -> Constr -> c a)
    -> (a -> Constr)
    -> (a -> DataType)
    -> (forall (t :: * -> *) (c :: * -> *).
        Typeable t =>
        (forall d. Data d => c (t d)) -> Maybe (c a))
    -> (forall (t :: * -> * -> *) (c :: * -> *).
        Typeable t =>
        (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c a))
    -> ((forall b. Data b => b -> b) -> a -> a)
    -> (forall r r'.
        (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> a -> r)
    -> (forall r r'.
        (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> a -> r)
    -> (forall u. (forall d. Data d => d -> u) -> a -> [u])
    -> (forall u. Int -> (forall d. Data d => d -> u) -> a -> u)
    -> (forall (m :: * -> *).
        Monad m =>
        (forall d. Data d => d -> m d) -> a -> m a)
    -> (forall (m :: * -> *).
        MonadPlus m =>
        (forall d. Data d => d -> m d) -> a -> m a)
    -> (forall (m :: * -> *).
        MonadPlus m =>
        (forall d. Data d => d -> m d) -> a -> m a)
    -> Data a
    forall u. Int -> (forall d. Data d => d -> u) -> Value -> u
    forall u. (forall d. Data d => d -> u) -> Value -> [u]
    forall r r'.
    (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Value -> r
    forall r r'.
    (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Value -> r
    forall (m :: * -> *).
    Monad m =>
    (forall d. Data d => d -> m d) -> Value -> m Value
    forall (m :: * -> *).
    MonadPlus m =>
    (forall d. Data d => d -> m d) -> Value -> m Value
    forall (c :: * -> *).
    (forall b r. Data b => c (b -> r) -> c r)
    -> (forall r. r -> c r) -> Constr -> c Value
    forall (c :: * -> *).
    (forall d b. Data d => c (d -> b) -> d -> c b)
    -> (forall g. g -> c g) -> Value -> c Value
    forall (t :: * -> *) (c :: * -> *).
    Typeable t =>
    (forall d. Data d => c (t d)) -> Maybe (c Value)
    forall (t :: * -> * -> *) (c :: * -> *).
    Typeable t =>
    (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c Value)
    $cNull :: Constr
    $cBool :: Constr
    $cNumber :: Constr
    $cString :: Constr
    $cArray :: Constr
    $cObject :: Constr
    $tValue :: DataType
    gmapMo :: (forall d. Data d => d -> m d) -> Value -> m Value
    $cgmapMo :: forall (m :: * -> *).
    MonadPlus m =>
    (forall d. Data d => d -> m d) -> Value -> m Value
    gmapMp :: (forall d. Data d => d -> m d) -> Value -> m Value
    $cgmapMp :: forall (m :: * -> *).
    MonadPlus m =>
    (forall d. Data d => d -> m d) -> Value -> m Value
    gmapM :: (forall d. Data d => d -> m d) -> Value -> m Value
    $cgmapM :: forall (m :: * -> *).
    Monad m =>
    (forall d. Data d => d -> m d) -> Value -> m Value
    gmapQi :: Int -> (forall d. Data d => d -> u) -> Value -> u
    $cgmapQi :: forall u. Int -> (forall d. Data d => d -> u) -> Value -> u
    gmapQ :: (forall d. Data d => d -> u) -> Value -> [u]
    $cgmapQ :: forall u. (forall d. Data d => d -> u) -> Value -> [u]
    gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Value -> r
    $cgmapQr :: forall r r'.
    (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Value -> r
    gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Value -> r
    $cgmapQl :: forall r r'.
    (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Value -> r
    gmapT :: (forall b. Data b => b -> b) -> Value -> Value
    $cgmapT :: (forall b. Data b => b -> b) -> Value -> Value
    dataCast2 :: (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c Value)
    $cdataCast2 :: forall (t :: * -> * -> *) (c :: * -> *).
    Typeable t =>
    (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c Value)
    dataCast1 :: (forall d. Data d => c (t d)) -> Maybe (c Value)
    $cdataCast1 :: forall (t :: * -> *) (c :: * -> *).
    Typeable t =>
    (forall d. Data d => c (t d)) -> Maybe (c Value)
    dataTypeOf :: Value -> DataType
    $cdataTypeOf :: Value -> DataType
    toConstr :: Value -> Constr
    $ctoConstr :: Value -> Constr
    gunfold :: (forall b r. Data b => c (b -> r) -> c r)
    -> (forall r. r -> c r) -> Constr -> c Value
    $cgunfold :: forall (c :: * -> *).
    (forall b r. Data b => c (b -> r) -> c r)
    -> (forall r. r -> c r) -> Constr -> c Value
    gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b)
    -> (forall g. g -> c g) -> Value -> c Value
    $cgfoldl :: forall (c :: * -> *).
    (forall d b. Data d => c (d -> b) -> d -> c b)
    -> (forall g. g -> c g) -> Value -> c Value
    $cp1Data :: Typeable Value
    Data, (forall x. Value -> Rep Value x)
    -> (forall x. Rep Value x -> Value) -> Generic Value
    forall x. Rep Value x -> Value
    forall x. Value -> Rep Value x
    forall a.
    (forall x. a -> Rep a x) -> (forall x. Rep a x -> a) -> Generic a
    $cto :: forall x. Rep Value x -> Value
    $cfrom :: forall x. Value -> Rep Value x
    Generic)

    -- | A newtype wrapper for 'UTCTime' that uses the same non-standard
    -- serialization format as Microsoft .NET, whose
    -- <https://msdn.microsoft.com/en-us/library/system.datetime(v=vs.110).aspx System.DateTime>
    -- type is by default serialized to JSON as in the following example:
    --
    -- > /Date(1302547608878)/
    --
    -- The number represents milliseconds since the Unix epoch.
    newtype DotNetTime = DotNetTime {
          DotNetTime -> UTCTime
    fromDotNetTime :: UTCTime
          -- ^ Acquire the underlying value.
        } deriving (DotNetTime -> DotNetTime -> Bool
    (DotNetTime -> DotNetTime -> Bool)
    -> (DotNetTime -> DotNetTime -> Bool) -> Eq DotNetTime
    forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
    /= :: DotNetTime -> DotNetTime -> Bool
    $c/= :: DotNetTime -> DotNetTime -> Bool
    == :: DotNetTime -> DotNetTime -> Bool
    $c== :: DotNetTime -> DotNetTime -> Bool
    Eq, Eq DotNetTime
    Eq DotNetTime =>
    (DotNetTime -> DotNetTime -> Ordering)
    -> (DotNetTime -> DotNetTime -> Bool)
    -> (DotNetTime -> DotNetTime -> Bool)
    -> (DotNetTime -> DotNetTime -> Bool)
    -> (DotNetTime -> DotNetTime -> Bool)
    -> (DotNetTime -> DotNetTime -> DotNetTime)
    -> (DotNetTime -> DotNetTime -> DotNetTime)
    -> Ord DotNetTime
    DotNetTime -> DotNetTime -> Bool
    DotNetTime -> DotNetTime -> Ordering
    DotNetTime -> DotNetTime -> DotNetTime
    forall a.
    Eq a =>
    (a -> a -> Ordering)
    -> (a -> a -> Bool)
    -> (a -> a -> Bool)
    -> (a -> a -> Bool)
    -> (a -> a -> Bool)
    -> (a -> a -> a)
    -> (a -> a -> a)
    -> Ord a
    min :: DotNetTime -> DotNetTime -> DotNetTime
    $cmin :: DotNetTime -> DotNetTime -> DotNetTime
    max :: DotNetTime -> DotNetTime -> DotNetTime
    $cmax :: DotNetTime -> DotNetTime -> DotNetTime
    >= :: DotNetTime -> DotNetTime -> Bool
    $c>= :: DotNetTime -> DotNetTime -> Bool
    > :: DotNetTime -> DotNetTime -> Bool
    $c> :: DotNetTime -> DotNetTime -> Bool
    <= :: DotNetTime -> DotNetTime -> Bool
    $c<= :: DotNetTime -> DotNetTime -> Bool
    < :: DotNetTime -> DotNetTime -> Bool
    $c< :: DotNetTime -> DotNetTime -> Bool
    compare :: DotNetTime -> DotNetTime -> Ordering
    $ccompare :: DotNetTime -> DotNetTime -> Ordering
    $cp1Ord :: Eq DotNetTime
    Ord, ReadPrec [DotNetTime]
    ReadPrec DotNetTime
    Int -> ReadS DotNetTime
    ReadS [DotNetTime]
    (Int -> ReadS DotNetTime)
    -> ReadS [DotNetTime]
    -> ReadPrec DotNetTime
    -> ReadPrec [DotNetTime]
    -> Read DotNetTime
    forall a.
    (Int -> ReadS a)
    -> ReadS [a] -> ReadPrec a -> ReadPrec [a] -> Read a
    readListPrec :: ReadPrec [DotNetTime]
    $creadListPrec :: ReadPrec [DotNetTime]
    readPrec :: ReadPrec DotNetTime
    $creadPrec :: ReadPrec DotNetTime
    readList :: ReadS [DotNetTime]
    $creadList :: ReadS [DotNetTime]
    readsPrec :: Int -> ReadS DotNetTime
    $creadsPrec :: Int -> ReadS DotNetTime
    Read, Int -> DotNetTime -> ShowS
    [DotNetTime] -> ShowS
    DotNetTime -> String
    (Int -> DotNetTime -> ShowS)
    -> (DotNetTime -> String)
    -> ([DotNetTime] -> ShowS)
    -> Show DotNetTime
    forall a.
    (Int -> a -> ShowS) -> (a -> String) -> ([a] -> ShowS) -> Show a
    showList :: [DotNetTime] -> ShowS
    $cshowList :: [DotNetTime] -> ShowS
    show :: DotNetTime -> String
    $cshow :: DotNetTime -> String
    showsPrec :: Int -> DotNetTime -> ShowS
    $cshowsPrec :: Int -> DotNetTime -> ShowS
    Show, Typeable, Bool -> Char -> Maybe (FormatOptions -> DotNetTime -> String)
    (Bool -> Char -> Maybe (FormatOptions -> DotNetTime -> String))
    -> FormatTime DotNetTime
    forall t.
    (Bool -> Char -> Maybe (FormatOptions -> t -> String))
    -> FormatTime t
    formatCharacter :: Bool -> Char -> Maybe (FormatOptions -> DotNetTime -> String)
    $cformatCharacter :: Bool -> Char -> Maybe (FormatOptions -> DotNetTime -> String)
    FormatTime)

    instance NFData Value where
        rnf :: Value -> ()
    rnf (Object o :: Object
    o) = Object -> ()
    forall a. NFData a => a -> ()
    rnf Object
    o
        rnf (Array a :: Array
    a)  = (() -> Value -> ()) -> () -> Array -> ()
    forall (t :: * -> *) b a.
    Foldable t =>
    (b -> a -> b) -> b -> t a -> b
    foldl' (\x :: ()
    x y :: Value
    y -> Value -> ()
    forall a. NFData a => a -> ()
    rnf Value
    y () -> () -> ()
    forall a b. a -> b -> b
    `seq` ()
    x) () Array
    a
        rnf (String s :: Text
    s) = Text -> ()
    forall a. NFData a => a -> ()
    rnf Text
    s
        rnf (Number n :: Scientific
    n) = Scientific -> ()
    forall a. NFData a => a -> ()
    rnf Scientific
    n
        rnf (Bool b :: Bool
    b)   = Bool -> ()
    forall a. NFData a => a -> ()
    rnf Bool
    b
        rnf Null       = ()

    instance IsString Value where
        fromString :: String -> Value
    fromString = Text -> Value
    String (Text -> Value) -> (String -> Text) -> String -> Value
    forall b c a. (b -> c) -> (a -> b) -> a -> c
    . String -> Text
    pack
        {-# INLINE fromString #-}

    hashValue :: Int -> Value -> Int
    #if MIN_VERSION_unordered_containers(0,2,6)
    hashValue :: Int -> Value -> Int
    hashValue s :: Int
    s (Object o :: Object
    o)   = Int
    s Int -> Int -> Int
    forall a. Hashable a => Int -> a -> Int
    `hashWithSalt` (0::Int) Int -> Object -> Int
    forall a. Hashable a => Int -> a -> Int
    `hashWithSalt` Object
    o
    #else
    hashValue s (Object o)   = foldl' hashWithSalt
                                  (s `hashWithSalt` (0::Int)) assocHashesSorted
      where
        assocHashesSorted = sort [hash k `hashWithSalt` v | (k, v) <- H.toList o]
    #endif
    hashValue s :: Int
    s (Array a :: Array
    a)    = (Int -> Value -> Int) -> Int -> Array -> Int
    forall (t :: * -> *) b a.
    Foldable t =>
    (b -> a -> b) -> b -> t a -> b
    foldl' Int -> Value -> Int
    forall a. Hashable a => Int -> a -> Int
    hashWithSalt
                                  (Int
    s Int -> Int -> Int
    forall a. Hashable a => Int -> a -> Int
    `hashWithSalt` (1::Int)) Array
    a
    hashValue s :: Int
    s (String str :: Text
    str) = Int
    s Int -> Int -> Int
    forall a. Hashable a => Int -> a -> Int
    `hashWithSalt` (2::Int) Int -> Text -> Int
    forall a. Hashable a => Int -> a -> Int
    `hashWithSalt` Text
    str
    hashValue s :: Int
    s (Number n :: Scientific
    n)   = Int
    s Int -> Int -> Int
    forall a. Hashable a => Int -> a -> Int
    `hashWithSalt` (3::Int) Int -> Scientific -> Int
    forall a. Hashable a => Int -> a -> Int
    `hashWithSalt` Scientific
    n
    hashValue s :: Int
    s (Bool b :: Bool
    b)     = Int
    s Int -> Int -> Int
    forall a. Hashable a => Int -> a -> Int
    `hashWithSalt` (4::Int) Int -> Bool -> Int
    forall a. Hashable a => Int -> a -> Int
    `hashWithSalt` Bool
    b
    hashValue s :: Int
    s Null         = Int
    s Int -> Int -> Int
    forall a. Hashable a => Int -> a -> Int
    `hashWithSalt` (5::Int)

    instance Hashable Value where
        hashWithSalt :: Int -> Value -> Int
    hashWithSalt = Int -> Value -> Int
    hashValue

    -- @since 0.11.0.0
    instance TH.Lift Value where
        lift :: Value -> Q Exp
    lift Null = [| Null |]
        lift (Bool b :: Bool
    b) = [| Bool b |]
        lift (Number n :: Scientific
    n) = [| Number (S.scientific c e) |]
          where
            c :: Integer
    c = Scientific -> Integer
    S.coefficient Scientific
    n
            e :: Int
    e = Scientific -> Int
    S.base10Exponent Scientific
    n
        lift (String t :: Text
    t) = [| String (pack s) |]
          where s :: String
    s = Text -> String
    unpack Text
    t
        lift (Array a :: Array
    a) = [| Array (V.fromList a') |]
          where a' :: [Value]
    a' = Array -> [Value]
    forall a. Vector a -> [a]
    V.toList Array
    a
        lift (Object o :: Object
    o) = [| Object (H.fromList . map (first pack) $ o') |]
          where o' :: [(String, Value)]
    o' = ((Text, Value) -> (String, Value))
    -> [(Text, Value)] -> [(String, Value)]
    forall a b. (a -> b) -> [a] -> [b]
    map ((Text -> String) -> (Text, Value) -> (String, Value)
    forall (a :: * -> * -> *) b c d.
    Arrow a =>
    a b c -> a (b, d) (c, d)
    first Text -> String
    unpack) ([(Text, Value)] -> [(String, Value)])
    -> (Object -> [(Text, Value)]) -> Object -> [(String, Value)]
    forall b c a. (b -> c) -> (a -> b) -> a -> c
    . Object -> [(Text, Value)]
    forall k v. HashMap k v -> [(k, v)]
    H.toList (Object -> [(String, Value)]) -> Object -> [(String, Value)]
    forall a b. (a -> b) -> a -> b
    $ Object
    o
    #if MIN_VERSION_template_haskell(2,16,0)
        liftTyped = TH.unsafeTExpCoerce . TH.lift
    #endif

    -- | The empty array.
    emptyArray :: Value
    emptyArray :: Value
    emptyArray = Array -> Value
    Array Array
    forall a. Vector a
    V.empty

    -- | Determines if the 'Value' is an empty 'Array'.
    -- Note that: @isEmptyArray 'emptyArray'@.
    isEmptyArray :: Value -> Bool
    isEmptyArray :: Value -> Bool
    isEmptyArray (Array arr :: Array
    arr) = Array -> Bool
    forall a. Vector a -> Bool
    V.null Array
    arr
    isEmptyArray _ = Bool
    False

    -- | The empty object.
    emptyObject :: Value
    emptyObject :: Value
    emptyObject = Object -> Value
    Object Object
    forall k v. HashMap k v
    H.empty

    -- | Run a 'Parser'.
    parse :: (a -> Parser b) -> a -> Result b
    parse :: (a -> Parser b) -> a -> Result b
    parse m :: a -> Parser b
    m v :: a
    v = Parser b
    -> [JSONPathElement]
    -> Failure Result b
    -> Success b Result b
    -> Result b
    forall a.
    Parser a
    -> forall (f :: * -> *) r.
       [JSONPathElement] -> Failure f r -> Success a f r -> f r
    runParser (a -> Parser b
    m a
    v) [] ((String -> Result b) -> Failure Result b
    forall a b. a -> b -> a
    const String -> Result b
    forall a. String -> Result a
    Error) Success b Result b
    forall a. a -> Result a
    Success
    {-# INLINE parse #-}

    -- | Run a 'Parser'.
    iparse :: (a -> Parser b) -> a -> IResult b
    iparse :: (a -> Parser b) -> a -> IResult b
    iparse m :: a -> Parser b
    m v :: a
    v = Parser b
    -> [JSONPathElement]
    -> Failure IResult b
    -> Success b IResult b
    -> IResult b
    forall a.
    Parser a
    -> forall (f :: * -> *) r.
       [JSONPathElement] -> Failure f r -> Success a f r -> f r
    runParser (a -> Parser b
    m a
    v) [] Failure IResult b
    forall a. [JSONPathElement] -> String -> IResult a
    IError Success b IResult b
    forall a. a -> IResult a
    ISuccess
    {-# INLINE iparse #-}

    -- | Run a 'Parser' with a 'Maybe' result type.
    parseMaybe :: (a -> Parser b) -> a -> Maybe b
    parseMaybe :: (a -> Parser b) -> a -> Maybe b
    parseMaybe m :: a -> Parser b
    m v :: a
    v = Parser b
    -> [JSONPathElement]
    -> Failure Maybe b
    -> Success b Maybe b
    -> Maybe b
    forall a.
    Parser a
    -> forall (f :: * -> *) r.
       [JSONPathElement] -> Failure f r -> Success a f r -> f r
    runParser (a -> Parser b
    m a
    v) [] (\_ _ -> Maybe b
    forall a. Maybe a
    Nothing) Success b Maybe b
    forall a. a -> Maybe a
    Just
    {-# INLINE parseMaybe #-}

    -- | Run a 'Parser' with an 'Either' result type.  If the parse fails,
    -- the 'Left' payload will contain an error message.
    parseEither :: (a -> Parser b) -> a -> Either String b
    parseEither :: (a -> Parser b) -> a -> Either String b
    parseEither m :: a -> Parser b
    m v :: a
    v = Parser b
    -> [JSONPathElement]
    -> Failure (Either String) b
    -> Success b (Either String) b
    -> Either String b
    forall a.
    Parser a
    -> forall (f :: * -> *) r.
       [JSONPathElement] -> Failure f r -> Success a f r -> f r
    runParser (a -> Parser b
    m a
    v) [] Failure (Either String) b
    forall b. [JSONPathElement] -> String -> Either String b
    onError Success b (Either String) b
    forall a b. b -> Either a b
    Right
      where onError :: [JSONPathElement] -> String -> Either String b
    onError path :: [JSONPathElement]
    path msg :: String
    msg = String -> Either String b
    forall a b. a -> Either a b
    Left ([JSONPathElement] -> ShowS
    formatError [JSONPathElement]
    path String
    msg)
    {-# INLINE parseEither #-}

    -- | Annotate an error message with a
    -- <http://goessner.net/articles/JsonPath/ JSONPath> error location.
    formatError :: JSONPath -> String -> String
    formatError :: [JSONPathElement] -> ShowS
    formatError path :: [JSONPathElement]
    path msg :: String
    msg = "Error in " String -> ShowS
    forall a. [a] -> [a] -> [a]
    ++ [JSONPathElement] -> String
    formatPath [JSONPathElement]
    path String -> ShowS
    forall a. [a] -> [a] -> [a]
    ++ ": " String -> ShowS
    forall a. [a] -> [a] -> [a]
    ++ String
    msg

    -- | Format a <http://goessner.net/articles/JsonPath/ JSONPath> as a 'String',
    -- representing the root object as @$@.
    formatPath :: JSONPath -> String
    formatPath :: [JSONPathElement] -> String
    formatPath path :: [JSONPathElement]
    path = "$" String -> ShowS
    forall a. [a] -> [a] -> [a]
    ++ [JSONPathElement] -> String
    formatRelativePath [JSONPathElement]
    path

    -- | Format a <http://goessner.net/articles/JsonPath/ JSONPath> as a 'String'
    -- which represents the path relative to some root object.
    formatRelativePath :: JSONPath -> String
    formatRelativePath :: [JSONPathElement] -> String
    formatRelativePath path :: [JSONPathElement]
    path = String -> [JSONPathElement] -> String
    format "" [JSONPathElement]
    path
      where
        format :: String -> JSONPath -> String
        format :: String -> [JSONPathElement] -> String
    format pfx :: String
    pfx []                = String
    pfx
        format pfx :: String
    pfx (Index idx :: Int
    idx:parts :: [JSONPathElement]
    parts) = String -> [JSONPathElement] -> String
    format (String
    pfx String -> ShowS
    forall a. [a] -> [a] -> [a]
    ++ "[" String -> ShowS
    forall a. [a] -> [a] -> [a]
    ++ Int -> String
    forall a. Show a => a -> String
    show Int
    idx String -> ShowS
    forall a. [a] -> [a] -> [a]
    ++ "]") [JSONPathElement]
    parts
        format pfx :: String
    pfx (Key key :: Text
    key:parts :: [JSONPathElement]
    parts)   = String -> [JSONPathElement] -> String
    format (String
    pfx String -> ShowS
    forall a. [a] -> [a] -> [a]
    ++ Text -> String
    formatKey Text
    key) [JSONPathElement]
    parts

        formatKey :: Text -> String
        formatKey :: Text -> String
    formatKey key :: Text
    key
           | String -> Bool
    isIdentifierKey String
    strKey = "." String -> ShowS
    forall a. [a] -> [a] -> [a]
    ++ String
    strKey
           | Bool
    otherwise              = "['" String -> ShowS
    forall a. [a] -> [a] -> [a]
    ++ ShowS
    escapeKey String
    strKey String -> ShowS
    forall a. [a] -> [a] -> [a]
    ++ "']"
          where strKey :: String
    strKey = Text -> String
    unpack Text
    key

        isIdentifierKey :: String -> Bool
        isIdentifierKey :: String -> Bool
    isIdentifierKey []     = Bool
    False
        isIdentifierKey (x :: Char
    x:xs :: String
    xs) = Char -> Bool
    isAlpha Char
    x Bool -> Bool -> Bool
    && (Char -> Bool) -> String -> Bool
    forall (t :: * -> *) a. Foldable t => (a -> Bool) -> t a -> Bool
    all Char -> Bool
    isAlphaNum String
    xs

        escapeKey :: String -> String
        escapeKey :: ShowS
    escapeKey = (Char -> String) -> ShowS
    forall (t :: * -> *) a b. Foldable t => (a -> [b]) -> t a -> [b]
    concatMap Char -> String
    escapeChar

        escapeChar :: Char -> String
        escapeChar :: Char -> String
    escapeChar '\'' = "\\'"
        escapeChar '\\' = "\\\\"
        escapeChar c :: Char
    c    = [Char
    c]

    -- | A key\/value pair for an 'Object'.
    type Pair = (Text, Value)

    -- | Create a 'Value' from a list of name\/value 'Pair's.  If duplicate
    -- keys arise, earlier keys and their associated values win.
    object :: [Pair] -> Value
    object :: [(Text, Value)] -> Value
    object = Object -> Value
    Object (Object -> Value)
    -> ([(Text, Value)] -> Object) -> [(Text, Value)] -> Value
    forall b c a. (b -> c) -> (a -> b) -> a -> c
    . [(Text, Value)] -> Object
    forall k v. (Eq k, Hashable k) => [(k, v)] -> HashMap k v
    H.fromList
    {-# INLINE object #-}

    -- | Add JSON Path context to a parser
    --
    -- When parsing a complex structure, it helps to annotate (sub)parsers
    -- with context, so that if an error occurs, you can find its location.
    --
    -- > withObject "Person" $ \o ->
    -- >   Person
    -- >     <$> o .: "name" <?> Key "name"
    -- >     <*> o .: "age"  <?> Key "age"
    --
    -- (Standard methods like '(.:)' already do this.)
    --
    -- With such annotations, if an error occurs, you will get a JSON Path
    -- location of that error.
    --
    -- Since 0.10
    (<?>) :: Parser a -> JSONPathElement -> Parser a
    p :: Parser a
    p <?> :: Parser a -> JSONPathElement -> Parser a
    <?> pathElem :: JSONPathElement
    pathElem = (forall (f :: * -> *) r.
     [JSONPathElement] -> Failure f r -> Success a f r -> f r)
    -> Parser a
    forall a.
    (forall (f :: * -> *) r.
     [JSONPathElement] -> Failure f r -> Success a f r -> f r)
    -> Parser a
    Parser ((forall (f :: * -> *) r.
      [JSONPathElement] -> Failure f r -> Success a f r -> f r)
     -> Parser a)
    -> (forall (f :: * -> *) r.
        [JSONPathElement] -> Failure f r -> Success a f r -> f r)
    -> Parser a
    forall a b. (a -> b) -> a -> b
    $ \path :: [JSONPathElement]
    path kf :: Failure f r
    kf ks :: Success a f r
    ks -> Parser a
    -> [JSONPathElement] -> Failure f r -> Success a f r -> f r
    forall a.
    Parser a
    -> forall (f :: * -> *) r.
       [JSONPathElement] -> Failure f r -> Success a f r -> f r
    runParser Parser a
    p (JSONPathElement
    pathElemJSONPathElement -> [JSONPathElement] -> [JSONPathElement]
    forall a. a -> [a] -> [a]
    :[JSONPathElement]
    path) Failure f r
    kf Success a f r
    ks

    -- | If the inner @Parser@ failed, modify the failure message using the
    -- provided function. This allows you to create more descriptive error messages.
    -- For example:
    --
    -- > parseJSON (Object o) = modifyFailure
    -- >     ("Parsing of the Foo value failed: " ++)
    -- >     (Foo <$> o .: "someField")
    --
    -- Since 0.6.2.0
    modifyFailure :: (String -> String) -> Parser a -> Parser a
    modifyFailure :: ShowS -> Parser a -> Parser a
    modifyFailure f :: ShowS
    f (Parser p :: forall (f :: * -> *) r.
    [JSONPathElement] -> Failure f r -> Success a f r -> f r
    p) = (forall (f :: * -> *) r.
     [JSONPathElement] -> Failure f r -> Success a f r -> f r)
    -> Parser a
    forall a.
    (forall (f :: * -> *) r.
     [JSONPathElement] -> Failure f r -> Success a f r -> f r)
    -> Parser a
    Parser ((forall (f :: * -> *) r.
      [JSONPathElement] -> Failure f r -> Success a f r -> f r)
     -> Parser a)
    -> (forall (f :: * -> *) r.
        [JSONPathElement] -> Failure f r -> Success a f r -> f r)
    -> Parser a
    forall a b. (a -> b) -> a -> b
    $ \path :: [JSONPathElement]
    path kf :: Failure f r
    kf ks :: Success a f r
    ks ->
        [JSONPathElement] -> Failure f r -> Success a f r -> f r
    forall (f :: * -> *) r.
    [JSONPathElement] -> Failure f r -> Success a f r -> f r
    p [JSONPathElement]
    path (\p' :: [JSONPathElement]
    p' m :: String
    m -> Failure f r
    kf [JSONPathElement]
    p' (ShowS
    f String
    m)) Success a f r
    ks

    -- | If the inner 'Parser' failed, prepend the given string to the failure
    -- message.
    --
    -- @
    -- 'prependFailure' s = 'modifyFailure' (s '++')
    -- @
    prependFailure :: String -> Parser a -> Parser a
    prependFailure :: String -> Parser a -> Parser a
    prependFailure = ShowS -> Parser a -> Parser a
    forall a. ShowS -> Parser a -> Parser a
    modifyFailure (ShowS -> Parser a -> Parser a)
    -> (String -> ShowS) -> String -> Parser a -> Parser a
    forall b c a. (b -> c) -> (a -> b) -> a -> c
    . String -> ShowS
    forall a. [a] -> [a] -> [a]
    (++)

    -- | Throw a parser error with an additional path.
    --
    -- @since 1.2.1.0
    parserThrowError :: JSONPath -> String -> Parser a
    parserThrowError :: [JSONPathElement] -> String -> Parser a
    parserThrowError path' :: [JSONPathElement]
    path' msg :: String
    msg = (forall (f :: * -> *) r.
     [JSONPathElement] -> Failure f r -> Success a f r -> f r)
    -> Parser a
    forall a.
    (forall (f :: * -> *) r.
     [JSONPathElement] -> Failure f r -> Success a f r -> f r)
    -> Parser a
    Parser ((forall (f :: * -> *) r.
      [JSONPathElement] -> Failure f r -> Success a f r -> f r)
     -> Parser a)
    -> (forall (f :: * -> *) r.
        [JSONPathElement] -> Failure f r -> Success a f r -> f r)
    -> Parser a
    forall a b. (a -> b) -> a -> b
    $ \path :: [JSONPathElement]
    path kf :: Failure f r
    kf _ks :: Success a f r
    _ks ->
        Failure f r
    kf ([JSONPathElement] -> [JSONPathElement]
    forall a. [a] -> [a]
    reverse [JSONPathElement]
    path [JSONPathElement] -> [JSONPathElement] -> [JSONPathElement]
    forall a. [a] -> [a] -> [a]
    ++ [JSONPathElement]
    path') String
    msg

    -- | A handler function to handle previous errors and return to normal execution.
    --
    -- @since 1.2.1.0
    parserCatchError :: Parser a -> (JSONPath -> String -> Parser a) -> Parser a
    parserCatchError :: Parser a -> ([JSONPathElement] -> String -> Parser a) -> Parser a
    parserCatchError (Parser p :: forall (f :: * -> *) r.
    [JSONPathElement] -> Failure f r -> Success a f r -> f r
    p) handler :: [JSONPathElement] -> String -> Parser a
    handler = (forall (f :: * -> *) r.
     [JSONPathElement] -> Failure f r -> Success a f r -> f r)
    -> Parser a
    forall a.
    (forall (f :: * -> *) r.
     [JSONPathElement] -> Failure f r -> Success a f r -> f r)
    -> Parser a
    Parser ((forall (f :: * -> *) r.
      [JSONPathElement] -> Failure f r -> Success a f r -> f r)
     -> Parser a)
    -> (forall (f :: * -> *) r.
        [JSONPathElement] -> Failure f r -> Success a f r -> f r)
    -> Parser a
    forall a b. (a -> b) -> a -> b
    $ \path :: [JSONPathElement]
    path kf :: Failure f r
    kf ks :: Success a f r
    ks ->
        [JSONPathElement] -> Failure f r -> Success a f r -> f r
    forall (f :: * -> *) r.
    [JSONPathElement] -> Failure f r -> Success a f r -> f r
    p [JSONPathElement]
    path (\e :: [JSONPathElement]
    e msg :: String
    msg -> Parser a
    -> [JSONPathElement] -> Failure f r -> Success a f r -> f r
    forall a.
    Parser a
    -> forall (f :: * -> *) r.
       [JSONPathElement] -> Failure f r -> Success a f r -> f r
    runParser ([JSONPathElement] -> String -> Parser a
    handler [JSONPathElement]
    e String
    msg) [JSONPathElement]
    path Failure f r
    kf Success a f r
    ks) Success a f r
    ks

    --------------------------------------------------------------------------------
    -- Generic and TH encoding configuration
    --------------------------------------------------------------------------------

    -- | Options that specify how to encode\/decode your datatype to\/from JSON.
    --
    -- Options can be set using record syntax on 'defaultOptions' with the fields
    -- below.
    data Options = Options
        { Options -> ShowS
    fieldLabelModifier :: String -> String
          -- ^ Function applied to field labels.
          -- Handy for removing common record prefixes for example.
        , Options -> ShowS
    constructorTagModifier :: String -> String
          -- ^ Function applied to constructor tags which could be handy
          -- for lower-casing them for example.
        , Options -> Bool
    allNullaryToStringTag :: Bool
          -- ^ If 'True' the constructors of a datatype, with /all/
          -- nullary constructors, will be encoded to just a string with
          -- the constructor tag. If 'False' the encoding will always
          -- follow the `sumEncoding`.
        , Options -> Bool
    omitNothingFields :: Bool
          -- ^ If 'True', record fields with a 'Nothing' value will be
          -- omitted from the resulting object. If 'False', the resulting
          -- object will include those fields mapping to @null@.
          --
          -- Note that this /does not/ affect parsing: 'Maybe' fields are
          -- optional regardless of the value of 'omitNothingFields', subject
          -- to the note below.
          --
          -- === Note
          --
          -- Setting 'omitNothingFields' to 'True' only affects fields which are of
          -- type 'Maybe' /uniformly/ in the 'ToJSON' instance.
          -- In particular, if the type of a field is declared as a type variable, it
          -- will not be omitted from the JSON object, unless the field is
          -- specialized upfront in the instance.
          --
          -- The same holds for 'Maybe' fields being optional in the 'FromJSON' instance.
          --
          -- ==== __Example__
          --
          -- The generic instance for the following type @Fruit@ depends on whether
          -- the instance head is @Fruit a@ or @Fruit (Maybe a)@.
          --
          -- @
          -- data Fruit a = Fruit
          --   { apples :: a  -- A field whose type is a type variable.
          --   , oranges :: 'Maybe' Int
          --   } deriving 'Generic'
          --
          -- -- apples required, oranges optional
          -- -- Even if 'Data.Aeson.fromJSON' is then specialized to (Fruit ('Maybe' a)).
          -- instance 'Data.Aeson.FromJSON' a => 'Data.Aeson.FromJSON' (Fruit a)
          --
          -- -- apples optional, oranges optional
          -- -- In this instance, the field apples is uniformly of type ('Maybe' a).
          -- instance 'Data.Aeson.FromJSON' a => 'Data.Aeson.FromJSON' (Fruit ('Maybe' a))
          --
          -- options :: 'Options'
          -- options = 'defaultOptions' { 'omitNothingFields' = 'True' }
          --
          -- -- apples always present in the output, oranges is omitted if 'Nothing'
          -- instance 'Data.Aeson.ToJSON' a => 'Data.Aeson.ToJSON' (Fruit a) where
          --   'Data.Aeson.toJSON' = 'Data.Aeson.genericToJSON' options
          --
          -- -- both apples and oranges are omitted if 'Nothing'
          -- instance 'Data.Aeson.ToJSON' a => 'Data.Aeson.ToJSON' (Fruit ('Maybe' a)) where
          --   'Data.Aeson.toJSON' = 'Data.Aeson.genericToJSON' options
          -- @
        , Options -> SumEncoding
    sumEncoding :: SumEncoding
          -- ^ Specifies how to encode constructors of a sum datatype.
        , Options -> Bool
    unwrapUnaryRecords :: Bool
          -- ^ Hide the field name when a record constructor has only one
          -- field, like a newtype.
        , Options -> Bool
    tagSingleConstructors :: Bool
          -- ^ Encode types with a single constructor as sums,
          -- so that `allNullaryToStringTag` and `sumEncoding` apply.
        , Options -> Bool
    rejectUnknownFields :: Bool
          -- ^ Applies only to 'Data.Aeson.FromJSON' instances. If a field appears in
          -- the parsed object map, but does not appear in the target object, parsing
          -- will fail, with an error message indicating which fields were unknown.
        }

    instance Show Options where
      show :: Options -> String
    show (Options f :: ShowS
    f c :: ShowS
    c a :: Bool
    a o :: Bool
    o s :: SumEncoding
    s u :: Bool
    u t :: Bool
    t r :: Bool
    r) =
           "Options {"
        String -> ShowS
    forall a. [a] -> [a] -> [a]
    ++ String -> [String] -> String
    forall a. [a] -> [[a]] -> [a]
    intercalate ", "
          [ "fieldLabelModifier =~ " String -> ShowS
    forall a. [a] -> [a] -> [a]
    ++ ShowS
    forall a. Show a => a -> String
    show (ShowS
    f "exampleField")
          , "constructorTagModifier =~ " String -> ShowS
    forall a. [a] -> [a] -> [a]
    ++ ShowS
    forall a. Show a => a -> String
    show (ShowS
    c "ExampleConstructor")
          , "allNullaryToStringTag = " String -> ShowS
    forall a. [a] -> [a] -> [a]
    ++ Bool -> String
    forall a. Show a => a -> String
    show Bool
    a
          , "omitNothingFields = " String -> ShowS
    forall a. [a] -> [a] -> [a]
    ++ Bool -> String
    forall a. Show a => a -> String
    show Bool
    o
          , "sumEncoding = " String -> ShowS
    forall a. [a] -> [a] -> [a]
    ++ SumEncoding -> String
    forall a. Show a => a -> String
    show SumEncoding
    s
          , "unwrapUnaryRecords = " String -> ShowS
    forall a. [a] -> [a] -> [a]
    ++ Bool -> String
    forall a. Show a => a -> String
    show Bool
    u
          , "tagSingleConstructors = " String -> ShowS
    forall a. [a] -> [a] -> [a]
    ++ Bool -> String
    forall a. Show a => a -> String
    show Bool
    t
          , "rejectUnknownFields = " String -> ShowS
    forall a. [a] -> [a] -> [a]
    ++ Bool -> String
    forall a. Show a => a -> String
    show Bool
    r
          ]
        String -> ShowS
    forall a. [a] -> [a] -> [a]
    ++ "}"

    -- | Specifies how to encode constructors of a sum datatype.
    data SumEncoding =
        TaggedObject { SumEncoding -> String
    tagFieldName      :: String
                     , SumEncoding -> String
    contentsFieldName :: String
                     }
        -- ^ A constructor will be encoded to an object with a field
        -- 'tagFieldName' which specifies the constructor tag (modified by
        -- the 'constructorTagModifier'). If the constructor is a record
        -- the encoded record fields will be unpacked into this object. So
        -- make sure that your record doesn't have a field with the same
        -- label as the 'tagFieldName'. Otherwise the tag gets overwritten
        -- by the encoded value of that field! If the constructor is not a
        -- record the encoded constructor contents will be stored under
        -- the 'contentsFieldName' field.
      | UntaggedValue
        -- ^ Constructor names won't be encoded. Instead only the contents of the
        -- constructor will be encoded as if the type had a single constructor. JSON
        -- encodings have to be disjoint for decoding to work properly.
        --
        -- When decoding, constructors are tried in the order of definition. If some
        -- encodings overlap, the first one defined will succeed.
        --
        -- /Note:/ Nullary constructors are encoded as strings (using
        -- 'constructorTagModifier'). Having a nullary constructor alongside a
        -- single field constructor that encodes to a string leads to ambiguity.
        --
        -- /Note:/ Only the last error is kept when decoding, so in the case of
        -- malformed JSON, only an error for the last constructor will be reported.
      | ObjectWithSingleField
        -- ^ A constructor will be encoded to an object with a single
        -- field named after the constructor tag (modified by the
        -- 'constructorTagModifier') which maps to the encoded contents of
        -- the constructor.
      | TwoElemArray
        -- ^ A constructor will be encoded to a 2-element array where the
        -- first element is the tag of the constructor (modified by the
        -- 'constructorTagModifier') and the second element the encoded
        -- contents of the constructor.
        deriving (SumEncoding -> SumEncoding -> Bool
    (SumEncoding -> SumEncoding -> Bool)
    -> (SumEncoding -> SumEncoding -> Bool) -> Eq SumEncoding
    forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
    /= :: SumEncoding -> SumEncoding -> Bool
    $c/= :: SumEncoding -> SumEncoding -> Bool
    == :: SumEncoding -> SumEncoding -> Bool
    $c== :: SumEncoding -> SumEncoding -> Bool
    Eq, Int -> SumEncoding -> ShowS
    [SumEncoding] -> ShowS
    SumEncoding -> String
    (Int -> SumEncoding -> ShowS)
    -> (SumEncoding -> String)
    -> ([SumEncoding] -> ShowS)
    -> Show SumEncoding
    forall a.
    (Int -> a -> ShowS) -> (a -> String) -> ([a] -> ShowS) -> Show a
    showList :: [SumEncoding] -> ShowS
    $cshowList :: [SumEncoding] -> ShowS
    show :: SumEncoding -> String
    $cshow :: SumEncoding -> String
    showsPrec :: Int -> SumEncoding -> ShowS
    $cshowsPrec :: Int -> SumEncoding -> ShowS
    Show)

    -- | Options for encoding keys with 'Data.Aeson.Types.genericFromJSONKey' and
    -- 'Data.Aeson.Types.genericToJSONKey'.
    data JSONKeyOptions = JSONKeyOptions
        { JSONKeyOptions -> ShowS
    keyModifier :: String -> String
          -- ^ Function applied to keys. Its result is what goes into the encoded
          -- 'Value'.
          --
          -- === __Example__
          --
          -- The following instances encode the constructor @Bar@ to lower-case keys
          -- @\"bar\"@.
          --
          -- @
          -- data Foo = Bar
          --   deriving 'Generic'
          --
          -- opts :: 'JSONKeyOptions'
          -- opts = 'defaultJSONKeyOptions' { 'keyModifier' = 'toLower' }
          --
          -- instance 'ToJSONKey' Foo where
          --   'toJSONKey' = 'genericToJSONKey' opts
          --
          -- instance 'FromJSONKey' Foo where
          --   'fromJSONKey' = 'genericFromJSONKey' opts
          -- @
        }

    -- | Default encoding 'Options':
    --
    -- @
    -- 'Options'
    -- { 'fieldLabelModifier'      = id
    -- , 'constructorTagModifier'  = id
    -- , 'allNullaryToStringTag'   = True
    -- , 'omitNothingFields'       = False
    -- , 'sumEncoding'             = 'defaultTaggedObject'
    -- , 'unwrapUnaryRecords'      = False
    -- , 'tagSingleConstructors'   = False
    -- , 'rejectUnknownFields'     = False
    -- }
    -- @
    defaultOptions :: Options
    defaultOptions :: Options
    defaultOptions = Options :: ShowS
    -> ShowS
    -> Bool
    -> Bool
    -> SumEncoding
    -> Bool
    -> Bool
    -> Bool
    -> Options
    Options
                     { fieldLabelModifier :: ShowS
    fieldLabelModifier      = ShowS
    forall a. a -> a
    id
                     , constructorTagModifier :: ShowS
    constructorTagModifier  = ShowS
    forall a. a -> a
    id
                     , allNullaryToStringTag :: Bool
    allNullaryToStringTag   = Bool
    True
                     , omitNothingFields :: Bool
    omitNothingFields       = Bool
    False
                     , sumEncoding :: SumEncoding
    sumEncoding             = SumEncoding
    defaultTaggedObject
                     , unwrapUnaryRecords :: Bool
    unwrapUnaryRecords      = Bool
    False
                     , tagSingleConstructors :: Bool
    tagSingleConstructors   = Bool
    False
                     , rejectUnknownFields :: Bool
    rejectUnknownFields     = Bool
    False
                     }

    -- | Default 'TaggedObject' 'SumEncoding' options:
    --
    -- @
    -- defaultTaggedObject = 'TaggedObject'
    --                       { 'tagFieldName'      = \"tag\"
    --                       , 'contentsFieldName' = \"contents\"
    --                       }
    -- @
    defaultTaggedObject :: SumEncoding
    defaultTaggedObject :: SumEncoding
    defaultTaggedObject = TaggedObject :: String -> String -> SumEncoding
    TaggedObject
                          { tagFieldName :: String
    tagFieldName      = "tag"
                          , contentsFieldName :: String
    contentsFieldName = "contents"
                          }

    -- | Default 'JSONKeyOptions':
    --
    -- @
    -- defaultJSONKeyOptions = 'JSONKeyOptions'
    --                         { 'keyModifier' = 'id'
    --                         }
    -- @
    defaultJSONKeyOptions :: JSONKeyOptions
    defaultJSONKeyOptions :: JSONKeyOptions
    defaultJSONKeyOptions = ShowS -> JSONKeyOptions
    JSONKeyOptions ShowS
    forall a. a -> a
    id

    -- | Converts from CamelCase to another lower case, interspersing
    --   the character between all capital letters and their previous
    --   entries, except those capital letters that appear together,
    --   like 'API'.
    --
    --   For use by Aeson template haskell calls.
    --
    --   > camelTo '_' 'CamelCaseAPI' == "camel_case_api"
    camelTo :: Char -> String -> String
    {-# DEPRECATED camelTo "Use camelTo2 for better results" #-}
    camelTo :: Char -> ShowS
    camelTo c :: Char
    c = Bool -> ShowS
    lastWasCap Bool
    True
      where
        lastWasCap :: Bool    -- ^ Previous was a capital letter
                  -> String  -- ^ The remaining string
                  -> String
        lastWasCap :: Bool -> ShowS
    lastWasCap _    []           = []
        lastWasCap prev :: Bool
    prev (x :: Char
    x : xs :: String
    xs)     = if Char -> Bool
    isUpper Char
    x
                                          then if Bool
    prev
                                                 then Char -> Char
    toLower Char
    x Char -> ShowS
    forall a. a -> [a] -> [a]
    : Bool -> ShowS
    lastWasCap Bool
    True String
    xs
                                                 else Char
    c Char -> ShowS
    forall a. a -> [a] -> [a]
    : Char -> Char
    toLower Char
    x Char -> ShowS
    forall a. a -> [a] -> [a]
    : Bool -> ShowS
    lastWasCap Bool
    True String
    xs
                                          else Char
    x Char -> ShowS
    forall a. a -> [a] -> [a]
    : Bool -> ShowS
    lastWasCap Bool
    False String
    xs

    -- | Better version of 'camelTo'. Example where it works better:
    --
    --   > camelTo '_' 'CamelAPICase' == "camel_apicase"
    --   > camelTo2 '_' 'CamelAPICase' == "camel_api_case"
    camelTo2 :: Char -> String -> String
    camelTo2 :: Char -> ShowS
    camelTo2 c :: Char
    c = (Char -> Char) -> ShowS
    forall a b. (a -> b) -> [a] -> [b]
    map Char -> Char
    toLower ShowS -> ShowS -> ShowS
    forall b c a. (b -> c) -> (a -> b) -> a -> c
    . ShowS
    go2 ShowS -> ShowS -> ShowS
    forall b c a. (b -> c) -> (a -> b) -> a -> c
    . ShowS
    go1
        where go1 :: ShowS
    go1 "" = ""
              go1 (x :: Char
    x:u :: Char
    u:l :: Char
    l:xs :: String
    xs) | Char -> Bool
    isUpper Char
    u Bool -> Bool -> Bool
    && Char -> Bool
    isLower Char
    l = Char
    x Char -> ShowS
    forall a. a -> [a] -> [a]
    : Char
    c Char -> ShowS
    forall a. a -> [a] -> [a]
    : Char
    u Char -> ShowS
    forall a. a -> [a] -> [a]
    : Char
    l Char -> ShowS
    forall a. a -> [a] -> [a]
    : ShowS
    go1 String
    xs
              go1 (x :: Char
    x:xs :: String
    xs) = Char
    x Char -> ShowS
    forall a. a -> [a] -> [a]
    : ShowS
    go1 String
    xs
              go2 :: ShowS
    go2 "" = ""
              go2 (l :: Char
    l:u :: Char
    u:xs :: String
    xs) | Char -> Bool
    isLower Char
    l Bool -> Bool -> Bool
    && Char -> Bool
    isUpper Char
    u = Char
    l Char -> ShowS
    forall a. a -> [a] -> [a]
    : Char
    c Char -> ShowS
    forall a. a -> [a] -> [a]
    : Char
    u Char -> ShowS
    forall a. a -> [a] -> [a]
    : ShowS
    go2 String
    xs
              go2 (x :: Char
    x:xs :: String
    xs) = Char
    x Char -> ShowS
    forall a. a -> [a] -> [a]
    : ShowS
    go2 String
    xs