@@ -1,27 +1,29 @@
1−{-# LANGUAGE CPP #-}
2−{-# LANGUAGE DefaultSignatures #-}
3−{-# LANGUAGE EmptyDataDecls #-}
4−{-# LANGUAGE FlexibleContexts #-}
5−{-# LANGUAGE FlexibleInstances #-}
6−{-# LANGUAGE FunctionalDependencies #-}
7−{-# LANGUAGE GADTs #-}
8−{-# LANGUAGE NoImplicitPrelude #-}
9−{-# LANGUAGE OverloadedStrings #-}
10−{-# LANGUAGE PatternGuards #-}
11−{-# LANGUAGE PolyKinds #-}
12−{-# LANGUAGE RecordWildCards #-}
13−{-# LANGUAGE ScopedTypeVariables #-}
14−{-# LANGUAGE TypeOperators #-}
15−{-# LANGUAGE UndecidableInstances #-}
1+{-# LANGUAGE CPP #-}
2+{-# LANGUAGE DataKinds #-}
3+{-# LANGUAGE DefaultSignatures #-}
4+{-# LANGUAGE FlexibleContexts #-}
5+{-# LANGUAGE FlexibleInstances #-}
6+{-# LANGUAGE GADTs #-}
7+{-# LANGUAGE MultiParamTypeClasses #-}
8+{-# LANGUAGE NamedFieldPuns #-}
9+{-# LANGUAGE OverloadedStrings #-}
10+{-# LANGUAGE PatternGuards #-}
11+{-# LANGUAGE RecordWildCards #-}
12+{-# LANGUAGE ScopedTypeVariables #-}
13+{-# LANGUAGE TypeOperators #-}
14+{-# LANGUAGE TypeSynonymInstances #-}
15+{-# LANGUAGE UndecidableInstances #-}
16+
17+#if __GLASGOW_HASKELL__ >= 706
18+{-# LANGUAGE PolyKinds #-}
19+#endif
1620
1721#include "overlapping-compat.h"
18−#include "incoherent-compat.h"
1922
2023-- TODO: Drop this when we remove support for Data.Attoparsec.Number
2124{-# OPTIONS_GHC -fno-warn-deprecations #-}
2225
23−module Data.Aeson.Types.ToJSON
24− (
26+module Data.Aeson.Types.ToJSON (
2527 -- * Core JSON classes
2628 ToJSON(..)
2729 -- * Liftings to unary and binary type constructors
@@ -33,7 +35,7 @@ module Data.Aeson.Types.ToJSON
3335 , toEncoding2
3436 -- * Generic JSON classes
3537 , GToJSON(..)
36− , ToArgs(..)
38+ , GToEncoding(..)
3739 , genericToJSON
3840 , genericToEncoding
3941 , genericLiftToJSON
@@ -41,107 +43,84 @@ module Data.Aeson.Types.ToJSON
4143 -- * Classes and types for map keys
4244 , ToJSONKey(..)
4345 , ToJSONKeyFunction(..)
44− , toJSONKeyText
4546 , contramapToJSONKeyFunction
46−
47− , GToJSONKey()
48− , genericToJSONKey
49−
5047 -- * Object key-value pairs
5148 , KeyValue(..)
52− , KeyValuePair(..)
53− , FromPairs(..)
5449 -- * Functions needed for documentation
5550 -- * Encoding functions
5651 , listEncoding
5752 , listValue
5853 ) where
5954
55+import Prelude ()
6056import Prelude.Compat
6157
62−import Control.Applicative (Const(..))
63−import Control.Monad.ST (ST)
64−import Data.Aeson.Encoding (Encoding, Encoding', Series, dict, emptyArray_)
65−import Data.Aeson.Encoding.Internal ((>*<))
66−import Data.Aeson.Internal.Functions (mapHashKeyVal, mapKeyVal)
67−import Data.Aeson.Types.Generic (AllNullary, False, IsRecord, One, ProductSize, Tagged2(..), True, Zero, productSize)
58+import Data.Aeson.Encoding.Internal (Encoding (..), Series, dict, emptyArray_,
59+ tuple, (>*<))
60+import Data.Aeson.Functions (mapHashKeyVal, mapKeyVal)
61+import Data.Aeson.Types.Generic
6862import Data.Aeson.Types.Internal
69−import Data.Attoparsec.Number (Number(..))
70−import Data.Bits (unsafeShiftR)
71−import Data.DList (DList)
72−import Data.Fixed (Fixed, HasResolution, Nano)
73−import Data.Foldable (toList)
74−import Data.Functor.Compose (Compose(..))
75−import Data.Functor.Contravariant (Contravariant (..))
76−import Data.Functor.Identity (Identity(..))
77−import Data.Functor.Product (Product(..))
78−import Data.Functor.Sum (Sum(..))
79−import Data.Int (Int16, Int32, Int64, Int8)
80−import Data.List (intersperse)
81−import Data.List.NonEmpty (NonEmpty(..))
82−import Data.Semigroup ((<>))
83−import Data.Proxy (Proxy(..))
84−import Data.Ratio (Ratio, denominator, numerator)
85−import Data.Scientific (Scientific)
86−import Data.Tagged (Tagged(..))
87−import Data.Text (Text, pack)
88−import Data.Time (Day, DiffTime, LocalTime, NominalDiffTime, TimeOfDay, UTCTime, ZonedTime)
89−import Data.Time.Calendar.Compat (CalendarDiffDays (..), DayOfWeek (..))
90−import Data.Time.LocalTime.Compat (CalendarDiffTime (..))
91−import Data.Time.Clock.System.Compat (SystemTime (..))
92−import Data.Time.Format.Compat (FormatTime, formatTime, defaultTimeLocale)
93−import Data.Vector (Vector)
94−import Data.Version (Version, showVersion)
95−import Data.Void (Void, absurd)
96−import Data.Word (Word16, Word32, Word64, Word8)
97−import Foreign.Storable (Storable)
98−import Foreign.C.Types (CTime (..))
63+
64+-- We need internal here for generic deriving
65+import qualified Data.Aeson.Encoding.Internal as E
66+
67+import Control.Applicative (Const (..))
68+import Control.Monad.ST (ST)
69+import Data.Attoparsec.Number (Number (..))
70+import Data.Bits (unsafeShiftR)
71+import Data.DList (DList)
72+import Data.Fixed (Fixed, HasResolution)
73+import Data.Foldable (toList)
74+import Data.Functor.Identity (Identity (..))
75+import Data.Int (Int16, Int32, Int64, Int8)
76+import Data.List (intersperse)
77+import Data.List.NonEmpty (NonEmpty (..))
78+import Data.Monoid (Dual (..), First (..), Last (..), (<>))
79+import Data.Proxy (Proxy (..))
80+import Data.Ratio (Ratio, denominator, numerator)
81+import Data.Scientific (Scientific)
82+import Data.Tagged (Tagged (..))
83+import Data.Text (Text, pack)
84+import Data.Time (Day, LocalTime, NominalDiffTime, TimeOfDay,
85+ UTCTime, ZonedTime)
86+import Data.Time.Format (FormatTime, formatTime)
87+import Data.Time.Locale.Compat (defaultTimeLocale)
88+import Data.Vector (Vector)
89+import Data.Version (Version, showVersion)
90+import Data.Word (Word16, Word32, Word64, Word8)
91+import Foreign.Storable (Storable)
9992import GHC.Generics
100−import Numeric.Natural (Natural)
101−import qualified Data.Aeson.Encoding as E
102−import qualified Data.Aeson.Encoding.Internal as E (InArray, comma, econcat, retagEncoding)
103−import qualified Data.ByteString.Lazy as L
104−import qualified Data.DList as DList
105−import qualified Data.HashMap.Strict as H
106−import qualified Data.HashSet as HashSet
107−import qualified Data.IntMap as IntMap
108−import qualified Data.IntSet as IntSet
109−import qualified Data.List.NonEmpty as NE
110−import qualified Data.Map as M
111−import qualified Data.Monoid as Monoid
112−import qualified Data.Scientific as Scientific
113−import qualified Data.Semigroup as Semigroup
114−import qualified Data.Sequence as Seq
115−import qualified Data.Set as Set
116−import qualified Data.Text as T
117−import qualified Data.Text.Encoding as T
118−import qualified Data.Text.Lazy as LT
119−import qualified Data.Tree as Tree
120−import qualified Data.UUID.Types as UUID
121−import qualified Data.Vector as V
122−import qualified Data.Vector.Generic as VG
123−import qualified Data.Vector.Mutable as VM
124−import qualified Data.Vector.Primitive as VP
125−import qualified Data.Vector.Storable as VS
126−import qualified Data.Vector.Unboxed as VU
127−
128−import qualified Data.Aeson.Encoding.Builder as EB
129−import qualified Data.ByteString.Builder as B
130−
131−import qualified GHC.Exts as Exts
132−import qualified Data.Primitive.Array as PM
133−import qualified Data.Primitive.SmallArray as PM
134−import qualified Data.Primitive.Types as PM
135−
136−#if MIN_VERSION_primitive(0,6,4)
137−#if !MIN_VERSION_primitive(0,7,0)
138−import qualified Data.Primitive.UnliftedArray as PM
139−#endif
140−import qualified Data.Primitive.PrimArray as PM
141−#endif
93+import Numeric.Natural (Natural)
94+
95+import qualified Data.ByteString.Builder as B (toLazyByteString)
96+import qualified Data.ByteString.Lazy as L
97+import qualified Data.DList as DList
98+import qualified Data.HashMap.Strict as H
99+import qualified Data.HashSet as HashSet
100+import qualified Data.IntMap as IntMap
101+import qualified Data.IntSet as IntSet
102+import qualified Data.List.NonEmpty as NE
103+import qualified Data.Map as M
104+import qualified Data.Scientific as Scientific
105+import qualified Data.Sequence as Seq
106+import qualified Data.Set as Set
107+import qualified Data.Text as T
108+import qualified Data.Text.Encoding as T
109+import qualified Data.Text.Lazy as LT
110+import qualified Data.Tree as Tree
111+import qualified Data.Vector as V
112+import qualified Data.Vector.Generic as VG
113+import qualified Data.Vector.Mutable as VM
114+import qualified Data.Vector.Primitive as VP
115+import qualified Data.Vector.Storable as VS
116+import qualified Data.Vector.Unboxed as VU
142117
143118toJSONPair :: (a -> Value) -> (b -> Value) -> (a, b) -> Value
144−toJSONPair a b = liftToJSON2 a (listValue a) b (listValue b)
119+toJSONPair keySerialiser valSerializer (a, b) = Array $ V.create $ do
120+ mv <- VM.unsafeNew 2
121+ VM.unsafeWrite mv 0 (keySerialiser a)
122+ VM.unsafeWrite mv 1 (valSerializer b)
123+ return mv
145124{-# INLINE toJSONPair #-}
146125
147126realFloatToJSON :: RealFloat a => a -> Value
@@ -156,53 +135,51 @@ realFloatToJSON d
156135
157136-- | Class of generic representation types that can be converted to
158137-- JSON.
159−class GToJSON enc arity f where
138+class GToJSON arity f where
160139 -- | This method (applied to 'defaultOptions') is used as the
161− -- default generic implementation of 'toJSON'
162− -- (with @enc ~ 'Value'@ and @arity ~ 'Zero'@)
163− -- and 'liftToJSON' (if the @arity@ is 'One').
164− --
165− -- It also provides a generic implementation of 'toEncoding'
166− -- (with @enc ~ 'Encoding'@ and @arity ~ 'Zero'@)
167− -- and 'liftToEncoding' (if the @arity@ is 'One').
168− gToJSON :: Options -> ToArgs enc arity a -> f a -> enc
169−
170−-- | A 'ToArgs' value either stores nothing (for 'ToJSON') or it stores the two
171−-- function arguments that encode occurrences of the type parameter (for
172−-- 'ToJSON1').
173−data ToArgs res arity a where
174− NoToArgs :: ToArgs res Zero a
175− To1Args :: (a -> res) -> ([a] -> res) -> ToArgs res One a
140+ -- default generic implementation of 'toJSON' (if the @arity@ is 'Zero')
141+ -- or 'liftToJSON' (if the @arity@ is 'One').
142+ gToJSON :: Options -> Proxy arity
143+ -> (a -> Value) -> ([a] -> Value) -> f a -> Value
144+
145+-- | Class of generic representation types that can be converted to
146+-- a JSON 'Encoding'.
147+class GToEncoding arity f where
148+ -- | This method (applied to 'defaultOptions') can be used as the
149+ -- default generic implementation of 'toEncoding' (if the @arity@ is 'Zero')
150+ -- or 'liftToEncoding' (if the @arity@ is 'One').
151+ gToEncoding :: Options -> Proxy arity
152+ -> (a -> Encoding) -> ([a] -> Encoding) -> f a -> Encoding
176153
177154-- | A configurable generic JSON creator. This function applied to
178155-- 'defaultOptions' is used as the default for 'toJSON' when the type
179156-- is an instance of 'Generic'.
180−genericToJSON :: (Generic a, GToJSON Value Zero (Rep a))
157+genericToJSON :: (Generic a, GToJSON Zero (Rep a))
181158 => Options -> a -> Value
182−genericToJSON opts = gToJSON opts NoToArgs . from
159+genericToJSON opts = gToJSON opts proxyZero undefined undefined . from
183160
184161-- | A configurable generic JSON creator. This function applied to
185162-- 'defaultOptions' is used as the default for 'liftToJSON' when the type
186163-- is an instance of 'Generic1'.
187−genericLiftToJSON :: (Generic1 f, GToJSON Value One (Rep1 f))
164+genericLiftToJSON :: (Generic1 f, GToJSON One (Rep1 f))
188165 => Options -> (a -> Value) -> ([a] -> Value)
189166 -> f a -> Value
190−genericLiftToJSON opts tj tjl = gToJSON opts (To1Args tj tjl) . from1
167+genericLiftToJSON opts tj tjl = gToJSON opts proxyOne tj tjl . from1
191168
192169-- | A configurable generic JSON encoder. This function applied to
193170-- 'defaultOptions' is used as the default for 'toEncoding' when the type
194171-- is an instance of 'Generic'.
195−genericToEncoding :: (Generic a, GToJSON Encoding Zero (Rep a))
172+genericToEncoding :: (Generic a, GToEncoding Zero (Rep a))
196173 => Options -> a -> Encoding
197−genericToEncoding opts = gToJSON opts NoToArgs . from
174+genericToEncoding opts = gToEncoding opts proxyZero undefined undefined . from
198175
199176-- | A configurable generic JSON encoder. This function applied to
200177-- 'defaultOptions' is used as the default for 'liftToEncoding' when the type
201178-- is an instance of 'Generic1'.
202−genericLiftToEncoding :: (Generic1 f, GToJSON Encoding One (Rep1 f))
179+genericLiftToEncoding :: (Generic1 f, GToEncoding One (Rep1 f))
203180 => Options -> (a -> Encoding) -> ([a] -> Encoding)
204181 -> f a -> Encoding
205−genericLiftToEncoding opts te tel = gToJSON opts (To1Args te tel) . from1
182+genericLiftToEncoding opts te tel = gToEncoding opts proxyOne te tel . from1
206183
207184-------------------------------------------------------------------------------
208185-- Class
@@ -210,9 +187,6 @@ genericLiftToEncoding opts te tel = gToJSON opts (To1Args te tel) . from1
210187
211188-- | A type that can be converted to JSON.
212189--
213−-- Instances in general /must/ specify 'toJSON' and /should/ (but don't need
214−-- to) specify 'toEncoding'.
215−--
216190-- An example type and instance:
217191--
218192-- @
@@ -221,10 +195,10 @@ genericLiftToEncoding opts te tel = gToJSON opts (To1Args te tel) . from1
221195--
222196-- data Coord = Coord { x :: Double, y :: Double }
223197--
224−-- instance 'ToJSON' Coord where
225−-- 'toJSON' (Coord x y) = 'object' [\"x\" '.=' x, \"y\" '.=' y]
198+-- instance ToJSON Coord where
199+-- toJSON (Coord x y) = 'object' [\"x\" '.=' x, \"y\" '.=' y]
226200--
227−-- 'toEncoding' (Coord x y) = 'pairs' (\"x\" '.=' x '<>' \"y\" '.=' y)
201+-- toEncoding (Coord x y) = 'pairs' (\"x\" '.=' x '<>' \"y\" '.=' y)
228202-- @
229203--
230204-- Instead of manually writing your 'ToJSON' instance, there are two options
@@ -232,15 +206,17 @@ genericLiftToEncoding opts te tel = gToJSON opts (To1Args te tel) . from1
232206--
233207-- * "Data.Aeson.TH" provides Template Haskell functions which will derive an
234208-- instance at compile time. The generated instance is optimized for your type
235−-- so it will probably be more efficient than the following option.
209+-- so will probably be more efficient than the following two options:
236210--
237211-- * The compiler can provide a default generic implementation for
238212-- 'toJSON'.
239213--
240214-- To use the second, simply add a @deriving 'Generic'@ clause to your
241−-- datatype and declare a 'ToJSON' instance. If you require nothing other than
242−-- 'defaultOptions', it is sufficient to write (and this is the only
243−-- alternative where the default 'toJSON' implementation is sufficient):
215+-- datatype and declare a 'ToJSON' instance for your datatype without giving
216+-- definitions for 'toJSON' or 'toEncoding'.
217+--
218+-- For example, the previous example can be simplified to a more
219+-- minimal instance:
244220--
245221-- @
246222-- {-\# LANGUAGE DeriveGeneric \#-}
@@ -249,46 +225,35 @@ genericLiftToEncoding opts te tel = gToJSON opts (To1Args te tel) . from1
249225--
250226-- data Coord = Coord { x :: Double, y :: Double } deriving 'Generic'
251227--
252−-- instance 'ToJSON' Coord where
253−-- 'toEncoding' = 'genericToEncoding' 'defaultOptions'
228+-- instance ToJSON Coord where
229+-- toEncoding = 'genericToEncoding' 'defaultOptions'
254230-- @
255231--
256−-- If on the other hand you wish to customize the generic decoding, you have
257−-- to implement both methods:
232+-- Why do we provide an implementation for 'toEncoding' here? The
233+-- 'toEncoding' function is a relatively new addition to this class.
234+-- To allow users of older versions of this library to upgrade without
235+-- having to edit all of their instances or encounter surprising
236+-- incompatibilities, the default implementation of 'toEncoding' uses
237+-- 'toJSON'. This produces correct results, but since it performs an
238+-- intermediate conversion to a 'Value', it will be less efficient
239+-- than directly emitting an 'Encoding'. Our one-liner definition of
240+-- 'toEncoding' above bypasses the intermediate 'Value'.
241+--
242+-- If @DefaultSignatures@ doesn't give exactly the results you want,
243+-- you can customize the generic encoding with only a tiny amount of
244+-- effort, using 'genericToJSON' and 'genericToEncoding' with your
245+-- preferred 'Options':
258246--
259247-- @
260−-- customOptions = 'defaultOptions'
261−-- { 'fieldLabelModifier' = 'map' 'Data.Char.toUpper'
262−-- }
263−--
264−-- instance 'ToJSON' Coord where
265−-- 'toJSON' = 'genericToJSON' customOptions
266−-- 'toEncoding' = 'genericToEncoding' customOptions
248+-- instance ToJSON Coord where
249+-- toJSON = 'genericToJSON' 'defaultOptions'
250+-- toEncoding = 'genericToEncoding' 'defaultOptions'
267251-- @
268−--
269−-- Previous versions of this library only had the 'toJSON' method. Adding
270−-- 'toEncoding' had two reasons:
271−--
272−-- 1. toEncoding is more efficient for the common case that the output of
273−-- 'toJSON' is directly serialized to a @ByteString@.
274−-- Further, expressing either method in terms of the other would be
275−-- non-optimal.
276−--
277−-- 2. The choice of defaults allows a smooth transition for existing users:
278−-- Existing instances that do not define 'toEncoding' still
279−-- compile and have the correct semantics. This is ensured by making
280−-- the default implementation of 'toEncoding' use 'toJSON'. This produces
281−-- correct results, but since it performs an intermediate conversion to a
282−-- 'Value', it will be less efficient than directly emitting an 'Encoding'.
283−-- (this also means that specifying nothing more than
284−-- @instance ToJSON Coord@ would be sufficient as a generically decoding
285−-- instance, but there probably exists no good reason to not specify
286−-- 'toEncoding' in new instances.)
287252class ToJSON a where
288253 -- | Convert a Haskell value to a JSON-friendly intermediate type.
289254 toJSON :: a -> Value
290255
291− default toJSON :: (Generic a, GToJSON Value Zero (Rep a)) => a -> Value
256+ default toJSON :: (Generic a, GToJSON Zero (Rep a)) => a -> Value
292257 toJSON = genericToJSON defaultOptions
293258
294259 -- | Encode a Haskell value as JSON.
@@ -305,8 +270,8 @@ class ToJSON a where
305270 -- extension, and then have GHC generate a method body as follows.
306271 --
307272 -- @
308− -- instance 'ToJSON' Coord where
309− -- 'toEncoding' = 'genericToEncoding' 'defaultOptions'
273+ -- instance ToJSON Coord where
274+ -- toEncoding = 'genericToEncoding' 'defaultOptions'
310275 -- @
311276
312277 toEncoding :: a -> Encoding
@@ -338,206 +303,26 @@ instance KeyValue Pair where
338303 name .= value = (name, toJSON value)
339304 {-# INLINE (.=) #-}
340305
341−-- | Constructs a singleton 'H.HashMap'. For calling functions that
342−-- demand an 'Object' for constructing objects. To be used in
343−-- conjunction with 'mconcat'. Prefer to use 'object' where possible.
344−instance KeyValue Object where
345− name .= value = H.singleton name (toJSON value)
346− {-# INLINE (.=) #-}
347−
348306-------------------------------------------------------------------------------
349307-- Classes and types for map keys
350308-------------------------------------------------------------------------------
351309
352−-- | Typeclass for types that can be used as the key of a map-like container
353−-- (like 'Map' or 'HashMap'). For example, since 'Text' has a 'ToJSONKey'
354−-- instance and 'Char' has a 'ToJSON' instance, we can encode a value of
355−-- type 'Map' 'Text' 'Char':
356−--
357−-- >>> LBC8.putStrLn $ encode $ Map.fromList [("foo" :: Text, 'a')]
358−-- {"foo":"a"}
359−--
360−-- Since 'Int' also has a 'ToJSONKey' instance, we can similarly write:
361−--
362−-- >>> LBC8.putStrLn $ encode $ Map.fromList [(5 :: Int, 'a')]
363−-- {"5":"a"}
364−--
365−-- JSON documents only accept strings as object keys. For any type
366−-- from @base@ that has a natural textual representation, it can be
367−-- expected that its 'ToJSONKey' instance will choose that representation.
368−--
369−-- For data types that lack a natural textual representation, an alternative
370−-- is provided. The map-like container is represented as a JSON array
371−-- instead of a JSON object. Each value in the array is an array with
372−-- exactly two values. The first is the key and the second is the value.
373−--
374−-- For example, values of type '[Text]' cannot be encoded to a
375−-- string, so a 'Map' with keys of type '[Text]' is encoded as follows:
376−--
377−-- >>> LBC8.putStrLn $ encode $ Map.fromList [(["foo","bar","baz" :: Text], 'a')]
378−-- [[["foo","bar","baz"],"a"]]
379−--
380−-- The default implementation of 'ToJSONKey' chooses this method of
381−-- encoding a key, using the 'ToJSON' instance of the type.
382−--
383−-- To use your own data type as the key in a map, all that is needed
384−-- is to write a 'ToJSONKey' (and possibly a 'FromJSONKey') instance
385−-- for it. If the type cannot be trivially converted to and from 'Text',
386−-- it is recommended that 'ToJSONKeyValue' is used. Since the default
387−-- implementations of the typeclass methods can build this from a
388−-- 'ToJSON' instance, there is nothing that needs to be written:
389−--
390−-- > data Foo = Foo { fooAge :: Int, fooName :: Text }
391−-- > deriving (Eq,Ord,Generic)
392−-- > instance ToJSON Foo
393−-- > instance ToJSONKey Foo
394−--
395−-- That's it. We can now write:
396−--
397−-- >>> let m = Map.fromList [(Foo 4 "bar",'a'),(Foo 6 "arg",'b')]
398−-- >>> LBC8.putStrLn $ encode m
399−-- [[{"fooName":"bar","fooAge":4},"a"],[{"fooName":"arg","fooAge":6},"b"]]
400−--
401−-- The next case to consider is if we have a type that is a
402−-- newtype wrapper around 'Text'. The recommended approach is to use
403−-- generalized newtype deriving:
404−--
405−-- > newtype RecordId = RecordId { getRecordId :: Text }
406−-- > deriving (Eq,Ord,ToJSONKey)
407−--
408−-- Then we may write:
409−--
410−-- >>> LBC8.putStrLn $ encode $ Map.fromList [(RecordId "abc",'a')]
411−-- {"abc":"a"}
412−--
413−-- Simple sum types are a final case worth considering. Suppose we have:
414−--
415−-- > data Color = Red | Green | Blue
416−-- > deriving (Show,Read,Eq,Ord)
417−--
418−-- It is possible to get the 'ToJSONKey' instance for free as we did
419−-- with 'Foo'. However, in this case, we have a natural way to go to
420−-- and from 'Text' that does not require any escape sequences. So
421−-- 'ToJSONKeyText' can be used instead of 'ToJSONKeyValue' to encode maps
422−-- as objects instead of arrays of pairs. This instance may be
423−-- implemented using generics as follows:
424−--
425−-- @
426−-- instance 'ToJSONKey' Color where
427−-- 'toJSONKey' = 'genericToJSONKey' 'defaultJSONKeyOptions'
428−-- @
429−--
430−-- === __Low-level implementations__
431−--
432−-- The 'Show' instance can be used to help write 'ToJSONKey':
433−--
434−-- > instance ToJSONKey Color where
435−-- > toJSONKey = ToJSONKeyText f g
436−-- > where f = Text.pack . show
437−-- > g = text . Text.pack . show
438−-- > -- text function is from Data.Aeson.Encoding
439−--
440−-- The situation of needing to turning function @a -> Text@ into
441−-- a 'ToJSONKeyFunction' is common enough that a special combinator
442−-- is provided for it. The above instance can be rewritten as:
443−--
444−-- > instance ToJSONKey Color where
445−-- > toJSONKey = toJSONKeyText (Text.pack . show)
446−--
447−-- The performance of the above instance can be improved by
448−-- not using 'String' as an intermediate step when converting to
449−-- 'Text'. One option for improving performance would be to use
450−-- template haskell machinery from the @text-show@ package. However,
451−-- even with the approach, the 'Encoding' (a wrapper around a bytestring
452−-- builder) is generated by encoding the 'Text' to a 'ByteString',
453−-- an intermediate step that could be avoided. The fastest possible
454−-- implementation would be:
455−--
456−-- > -- Assuming that OverloadedStrings is enabled
457−-- > instance ToJSONKey Color where
458−-- > toJSONKey = ToJSONKeyText f g
459−-- > where f x = case x of {Red -> "Red";Green ->"Green";Blue -> "Blue"}
460−-- > g x = case x of {Red -> text "Red";Green -> text "Green";Blue -> text "Blue"}
461−-- > -- text function is from Data.Aeson.Encoding
462−--
463−-- This works because GHC can lift the encoded values out of the case
464−-- statements, which means that they are only evaluated once. This
465−-- approach should only be used when there is a serious need to
466−-- maximize performance.
467−
468310class ToJSONKey a where
469− -- | Strategy for rendering the key for a map-like container.
470311 toJSONKey :: ToJSONKeyFunction a
471312 default toJSONKey :: ToJSON a => ToJSONKeyFunction a
472− toJSONKey = ToJSONKeyValue toJSON toEncoding
473−
474− -- | This is similar in spirit to the 'showsList' method of 'Show'.
475− -- It makes it possible to give 'String' keys special treatment
476− -- without using @OverlappingInstances@. End users should always
477− -- be able to use the default implementation of this method.
313+ toJSONKey = ToJSONKeyValue (toJSON, toEncoding)
478314 toJSONKeyList :: ToJSONKeyFunction [a]
479315 default toJSONKeyList :: ToJSON a => ToJSONKeyFunction [a]
480− toJSONKeyList = ToJSONKeyValue toJSON toEncoding
316+ toJSONKeyList = ToJSONKeyValue (toJSON, toEncoding)
481317
482318data ToJSONKeyFunction a
483− = ToJSONKeyText !(a -> Text) !(a -> Encoding' Text)
484− -- ^ key is encoded to string, produces object
485− | ToJSONKeyValue !(a -> Value) !(a -> Encoding)
486− -- ^ key is encoded to value, produces array
487−
488−-- | Helper for creating textual keys.
489−--
490−-- @
491−-- instance 'ToJSONKey' MyKey where
492−-- 'toJSONKey' = 'toJSONKeyText' myKeyToText
493−-- where
494−-- myKeyToText = Text.pack . show -- or showt from text-show
495−-- @
496−toJSONKeyText :: (a -> Text) -> ToJSONKeyFunction a
497−toJSONKeyText f = ToJSONKeyText f (E.text . f)
319+ = ToJSONKeyText (a -> Text, a -> Encoding)
320+ | ToJSONKeyValue (a -> Value, a -> Encoding)
498321
499−-- | TODO: should this be exported?
500−toJSONKeyTextEnc :: (a -> Encoding' Text) -> ToJSONKeyFunction a
501−toJSONKeyTextEnc e = ToJSONKeyText tot e
502− where
503− -- TODO: dropAround is also used in stringEncoding, which is unfortunate atm
504− tot = T.dropAround (== '"')
505− . T.decodeLatin1
506− . L.toStrict
507− . E.encodingToLazyByteString
508− . e
509−
510−instance Contravariant ToJSONKeyFunction where
511− contramap = contramapToJSONKeyFunction
512−
513−-- | Contravariant map, as 'ToJSONKeyFunction' is a contravariant functor.
514322contramapToJSONKeyFunction :: (b -> a) -> ToJSONKeyFunction a -> ToJSONKeyFunction b
515323contramapToJSONKeyFunction h x = case x of
516− ToJSONKeyText f g -> ToJSONKeyText (f . h) (g . h)
517− ToJSONKeyValue f g -> ToJSONKeyValue (f . h) (g . h)
518−
519−-- 'toJSONKey' for 'Generic' types.
520−-- Deriving is supported for enumeration types, i.e. the sums of nullary
521−-- constructors. The names of constructors will be used as keys for JSON
522−-- objects.
523−--
524−-- See also 'genericFromJSONKey'.
525−--
526−-- === __Example__
527−--
528−-- @
529−-- data Color = Red | Green | Blue
530−-- deriving 'Generic'
531−--
532−-- instance 'ToJSONKey' Color where
533−-- 'toJSONKey' = 'genericToJSONKey' 'defaultJSONKeyOptions'
534−-- @
535−genericToJSONKey :: (Generic a, GToJSONKey (Rep a))
536− => JSONKeyOptions -> ToJSONKeyFunction a
537−genericToJSONKey opts = toJSONKeyText (pack . keyModifier opts . getConName . from)
538−
539−class GetConName f => GToJSONKey f
540−instance GetConName f => GToJSONKey f
324+ ToJSONKeyText (f,g) -> ToJSONKeyText (f . h, g . h)
325+ ToJSONKeyValue (f,g) -> ToJSONKeyValue (f . h, g . h)
541326
542327-------------------------------------------------------------------------------
543328-- Lifings of FromJSON and ToJSON to unary and binary type constructors
@@ -551,7 +336,7 @@ instance GetConName f => GToJSONKey f
551336--
552337-- * "Data.Aeson.TH" provides Template Haskell functions which will derive an
553338-- instance at compile time. The generated instance is optimized for your type
554−-- so it will probably be more efficient than the following option.
339+-- so will probably be more efficient than the following two options:
555340--
556341-- * The compiler can provide a default generic implementation for
557342-- 'toJSON1'.
@@ -569,29 +354,23 @@ instance GetConName f => GToJSONKey f
569354--
570355-- data Pair = Pair { pairFst :: a, pairSnd :: b } deriving 'Generic1'
571356--
572−-- instance 'ToJSON' a => 'ToJSON1' (Pair a)
357+-- instance ToJSON a => ToJSON1 (Pair a)
573358-- @
574359--
575−-- If the default implementation doesn't give exactly the results you want,
360+-- If @DefaultSignatures@ doesn't give exactly the results you want,
576361-- you can customize the generic encoding with only a tiny amount of
577362-- effort, using 'genericLiftToJSON' and 'genericLiftToEncoding' with
578363-- your preferred 'Options':
579364--
580365-- @
581−-- customOptions = 'defaultOptions'
582−-- { 'fieldLabelModifier' = 'map' 'Data.Char.toUpper'
583−-- }
584−--
585−-- instance 'ToJSON' a => 'ToJSON1' (Pair a) where
586−-- 'liftToJSON' = 'genericLiftToJSON' customOptions
587−-- 'liftToEncoding' = 'genericLiftToEncoding' customOptions
366+-- instance ToJSON a => ToJSON1 (Pair a) where
367+-- liftToJSON = 'genericLiftToJSON' 'defaultOptions'
368+-- liftToEncoding = 'genericLiftToEncoding' 'defaultOptions'
588369-- @
589−--
590−-- See also 'ToJSON'.
591370class ToJSON1 f where
592371 liftToJSON :: (a -> Value) -> ([a] -> Value) -> f a -> Value
593372
594− default liftToJSON :: (Generic1 f, GToJSON Value One (Rep1 f))
373+ default liftToJSON :: (Generic1 f, GToJSON One (Rep1 f))
595374 => (a -> Value) -> ([a] -> Value) -> f a -> Value
596375 liftToJSON = genericLiftToJSON defaultOptions
597376
@@ -600,7 +379,7 @@ class ToJSON1 f where
600379
601380 liftToEncoding :: (a -> Encoding) -> ([a] -> Encoding) -> f a -> Encoding
602381
603− default liftToEncoding :: (Generic1 f, GToJSON Encoding One (Rep1 f))
382+ default liftToEncoding :: (Generic1 f, GToEncoding One (Rep1 f))
604383 => (a -> Encoding) -> ([a] -> Encoding)
605384 -> f a -> Encoding
606385 liftToEncoding = genericLiftToEncoding defaultOptions
@@ -648,25 +427,9 @@ toEncoding2 = liftToEncoding2 toEncoding toEncodingList toEncoding toEncodingLis
648427-- Encoding functions
649428-------------------------------------------------------------------------------
650429
651−-- | Helper function to use with 'liftToEncoding'.
652−-- Useful when writing own 'ToJSON1' instances.
653−--
654−-- @
655−-- newtype F a = F [a]
656−--
657−-- -- This instance encodes 'String' as an array of chars
658−-- instance 'ToJSON1' F where
659−-- 'liftToJSON' tj _ (F xs) = 'liftToJSON' tj ('listValue' tj) xs
660−-- 'liftToEncoding' te _ (F xs) = 'liftToEncoding' te ('listEncoding' te) xs
661−--
662−-- instance 'Data.Aeson.FromJSON.FromJSON1' F where
663−-- 'Data.Aeson.FromJSON.liftParseJSON' p _ v = F \<$\> 'Data.Aeson.FromJSON.liftParseJSON' p ('Data.Aeson.FromJSON.listParser' p) v
664−-- @
665430listEncoding :: (a -> Encoding) -> [a] -> Encoding
666431listEncoding = E.list
667−{-# INLINE listEncoding #-}
668432
669−-- | Helper function to use with 'liftToJSON', see 'listEncoding'.
670433listValue :: (a -> Value) -> [a] -> Value
671434listValue f = Array . V.fromList . map f
672435{-# INLINE listValue #-}
@@ -685,11 +448,6 @@ instance ToJSON1 [] where
685448 {-# INLINE liftToEncoding #-}
686449
687450instance (ToJSON a) => ToJSON [a] where
688− {-# SPECIALIZE instance ToJSON String #-}
689− {-# SPECIALIZE instance ToJSON [String] #-}
690− {-# SPECIALIZE instance ToJSON [Array] #-}
691− {-# SPECIALIZE instance ToJSON [Object] #-}
692−
693451 toJSON = toJSON1
694452 {-# INLINE toJSON #-}
695453
@@ -700,260 +458,283 @@ instance (ToJSON a) => ToJSON [a] where
700458-- Generic toJSON / toEncoding
701459-------------------------------------------------------------------------------
702460
703−instance OVERLAPPABLE_ (GToJSON enc arity a) => GToJSON enc arity (M1 i c a) where
704− -- Meta-information, which is not handled elsewhere, is ignored:
705− gToJSON opts targs = gToJSON opts targs . unM1
706− {-# INLINE gToJSON #-}
707−
708−instance GToJSON enc One Par1 where
709− -- Direct occurrences of the last type parameter are encoded with the
710− -- function passed in as an argument:
711− gToJSON _opts (To1Args tj _) = tj . unPar1
712− {-# INLINE gToJSON #-}
713−
714−instance ( ConsToJSON enc arity a
715− , AllNullary (C1 c a) allNullary
716− , SumToJSON enc arity (C1 c a) allNullary
717− ) => GToJSON enc arity (D1 d (C1 c a)) where
718− -- The option 'tagSingleConstructors' determines whether to wrap
719− -- a single-constructor type.
720− gToJSON opts targs
721− | tagSingleConstructors opts = (unTagged :: Tagged allNullary enc -> enc)
722− . sumToJSON opts targs
723− . unM1
724− | otherwise = consToJSON opts targs . unM1 . unM1
725− {-# INLINE gToJSON #-}
726−
727−instance (ConsToJSON enc arity a) => GToJSON enc arity (C1 c a) where
728− -- Constructors need to be encoded differently depending on whether they're
729− -- a record or not. This distinction is made by 'consToJSON':
730− gToJSON opts targs = consToJSON opts targs . unM1
731− {-# INLINE gToJSON #-}
732−
733−instance ( AllNullary (a :+: b) allNullary
734− , SumToJSON enc arity (a :+: b) allNullary
735− ) => GToJSON enc arity (a :+: b)
736− where
737− -- If all constructors of a sum datatype are nullary and the
738− -- 'allNullaryToStringTag' option is set they are encoded to
739− -- strings. This distinction is made by 'sumToJSON':
740− gToJSON opts targs = (unTagged :: Tagged allNullary enc -> enc)
741− . sumToJSON opts targs
742− {-# INLINE gToJSON #-}
743−
744461--------------------------------------------------------------------------------
745462-- Generic toJSON
746463
747−-- Note: Refactoring 'ToJSON a' to 'ToJSON enc a' (and 'ToJSON1' similarly) is
748−-- possible but makes error messages a bit harder to understand for missing
749−-- instances.
750−
751−instance GToJSON Value arity V1 where
752− -- Empty values do not exist, which makes the job of formatting them
753− -- rather easy:
754− gToJSON _ _ x = x `seq` error "case: V1"
755− {-# INLINE gToJSON #-}
464+instance OVERLAPPABLE_ (GToJSON arity a) => GToJSON arity (M1 i c a) where
465+ -- Meta-information, which is not handled elsewhere, is ignored:
466+ gToJSON opts pa tj tjl = gToJSON opts pa tj tjl . unM1
756467
757−instance ToJSON a => GToJSON Value arity (K1 i a) where
468+instance (ToJSON a) => GToJSON arity (K1 i a) where
758469 -- Constant values are encoded using their ToJSON instance:
759− gToJSON _opts _ = toJSON . unK1
760− {-# INLINE gToJSON #-}
470+ gToJSON _opts _ _ _ = toJSON . unK1
471+
472+instance GToJSON One Par1 where
473+ -- Direct occurrences of the last type parameter are encoded with the
474+ -- function passed in as an argument:
475+ gToJSON _opts _ tj _ = tj . unPar1
761476
762−instance ToJSON1 f => GToJSON Value One (Rec1 f) where
477+instance (ToJSON1 f) => GToJSON One (Rec1 f) where
763478 -- Recursive occurrences of the last type parameter are encoded using their
764479 -- ToJSON1 instance:
765− gToJSON _opts (To1Args tj tjl) = liftToJSON tj tjl . unRec1
766− {-# INLINE gToJSON #-}
480+ gToJSON _opts _ tj tjl = liftToJSON tj tjl . unRec1
767481
768−instance GToJSON Value arity U1 where
482+instance GToJSON arity U1 where
769483 -- Empty constructors are encoded to an empty array:
770− gToJSON _opts _ _ = emptyArray
771− {-# INLINE gToJSON #-}
484+ gToJSON _opts _ _ _ _ = emptyArray
485+
486+instance (ConsToJSON arity a) => GToJSON arity (C1 c a) where
487+ -- Constructors need to be encoded differently depending on whether they're
488+ -- a record or not. This distinction is made by 'consToJSON':
489+ gToJSON opts pa tj tjl = consToJSON opts pa tj tjl . unM1
772490
773491instance ( WriteProduct arity a, WriteProduct arity b
774492 , ProductSize a, ProductSize b
775− ) => GToJSON Value arity (a :*: b)
776− where
493+ ) => GToJSON arity (a :*: b) where
777494 -- Products are encoded to an array. Here we allocate a mutable vector of
778495 -- the same size as the product and write the product's elements to it using
779496 -- 'writeProduct':
780− gToJSON opts targs p =
497+ gToJSON opts pa tj tjl p =
781498 Array $ V.create $ do
782499 mv <- VM.unsafeNew lenProduct
783− writeProduct opts targs mv 0 lenProduct p
500+ writeProduct opts pa mv 0 lenProduct tj tjl p
784501 return mv
785502 where
786503 lenProduct = (unTagged2 :: Tagged2 (a :*: b) Int -> Int)
787504 productSize
788− {-# INLINE gToJSON #-}
789505
790−instance ( ToJSON1 f
791− , GToJSON Value One g
792− ) => GToJSON Value One (f :.: g)
793− where
506+instance ( AllNullary (a :+: b) allNullary
507+ , SumToJSON arity (a :+: b) allNullary
508+ ) => GToJSON arity (a :+: b) where
509+ -- If all constructors of a sum datatype are nullary and the
510+ -- 'allNullaryToStringTag' option is set they are encoded to
511+ -- strings. This distinction is made by 'sumToJSON':
512+ gToJSON opts pa tj tjl = (unTagged :: Tagged allNullary Value -> Value)
513+ . sumToJSON opts pa tj tjl
514+
515+instance (ToJSON1 f, GToJSON One g) => GToJSON One (f :.: g) where
794516 -- If an occurrence of the last type parameter is nested inside two
795517 -- composed types, it is encoded by using the outermost type's ToJSON1
796518 -- instance to generically encode the innermost type:
797− gToJSON opts targs =
798− let gtj = gToJSON opts targs in
519+ gToJSON opts pa tj tjl =
520+ let gtj = gToJSON opts pa tj tjl in
799521 liftToJSON gtj (listValue gtj) . unComp1
800− {-# INLINE gToJSON #-}
801522
802523--------------------------------------------------------------------------------
803524-- Generic toEncoding
804525
805−instance ToJSON a => GToJSON Encoding arity (K1 i a) where
526+instance OVERLAPPABLE_ (GToEncoding arity a) => GToEncoding arity (M1 i c a) where
527+ -- Meta-information, which is not handled elsewhere, is ignored:
528+ gToEncoding opts pa te tel = gToEncoding opts pa te tel . unM1
529+
530+instance (ToJSON a) => GToEncoding arity (K1 i a) where
806531 -- Constant values are encoded using their ToJSON instance:
807− gToJSON _opts _ = toEncoding . unK1
808− {-# INLINE gToJSON #-}
532+ gToEncoding _opts _ _ _ = toEncoding . unK1
533+
534+instance GToEncoding One Par1 where
535+ -- Direct occurrences of the last type parameter are encoded with the
536+ -- function passed in as an argument:
537+ gToEncoding _opts _ te _ = te . unPar1
809538
810−instance ToJSON1 f => GToJSON Encoding One (Rec1 f) where
539+instance (ToJSON1 f) => GToEncoding One (Rec1 f) where
811540 -- Recursive occurrences of the last type parameter are encoded using their
812541 -- ToEncoding1 instance:
813− gToJSON _opts (To1Args te tel) = liftToEncoding te tel . unRec1
814− {-# INLINE gToJSON #-}
542+ gToEncoding _opts _ te tel = liftToEncoding te tel . unRec1
815543
816−instance GToJSON Encoding arity U1 where
544+instance GToEncoding arity U1 where
817545 -- Empty constructors are encoded to an empty array:
818− gToJSON _opts _ _ = E.emptyArray_
819− {-# INLINE gToJSON #-}
546+ gToEncoding _opts _ _ _ _ = E.emptyArray_
547+
548+instance (ConsToEncoding arity a) => GToEncoding arity (C1 c a) where
549+ -- Constructors need to be encoded differently depending on whether they're
550+ -- a record or not. This distinction is made by 'consToEncoding':
551+ gToEncoding opts pa te tel = consToEncoding opts pa te tel . unM1
820552
821553instance ( EncodeProduct arity a
822554 , EncodeProduct arity b
823− ) => GToJSON Encoding arity (a :*: b)
824− where
555+ ) => GToEncoding arity (a :*: b) where
825556 -- Products are encoded to an array. Here we allocate a mutable vector of
826557 -- the same size as the product and write the product's elements to it using
827558 -- 'encodeProduct':
828− gToJSON opts targs p = E.list E.retagEncoding [encodeProduct opts targs p]
829− {-# INLINE gToJSON #-}
559+ gToEncoding opts pa te tel p = E.tuple $ encodeProduct opts pa te tel p
560+
561+instance ( AllNullary (a :+: b) allNullary
562+ , SumToEncoding arity (a :+: b) allNullary
563+ ) => GToEncoding arity (a :+: b) where
564+ -- If all constructors of a sum datatype are nullary and the
565+ -- 'allNullaryToStringTag' option is set they are encoded to
566+ -- strings. This distinction is made by 'sumToEncoding':
567+ gToEncoding opts pa te tel
568+ = (unTagged :: Tagged allNullary Encoding -> Encoding)
569+ . sumToEncoding opts pa te tel
830570
831−instance ( ToJSON1 f
832− , GToJSON Encoding One g
833− ) => GToJSON Encoding One (f :.: g)
834− where
571+instance (ToJSON1 f, GToEncoding One g) => GToEncoding One (f :.: g) where
835572 -- If an occurrence of the last type parameter is nested inside two
836573 -- composed types, it is encoded by using the outermost type's ToJSON1
837574 -- instance to generically encode the innermost type:
838− gToJSON opts targs =
839− let gte = gToJSON opts targs in
575+ gToEncoding opts pa te tel =
576+ let gte = gToEncoding opts pa te tel in
840577 liftToEncoding gte (listEncoding gte) . unComp1
841− {-# INLINE gToJSON #-}
842578
843579--------------------------------------------------------------------------------
844580
845−class SumToJSON enc arity f allNullary where
846− sumToJSON :: Options -> ToArgs enc arity a
847− -> f a -> Tagged allNullary enc
848−
849−instance ( GetConName f
850− , FromString enc
851− , TaggedObject enc arity f
852− , SumToJSON' ObjectWithSingleField enc arity f
853− , SumToJSON' TwoElemArray enc arity f
854− , SumToJSON' UntaggedValue enc arity f
855− ) => SumToJSON enc arity f True
856− where
857− sumToJSON opts targs
858− | allNullaryToStringTag opts = Tagged . fromString
581+class SumToJSON arity f allNullary where
582+ sumToJSON :: Options -> Proxy arity
583+ -> (a -> Value) -> ([a] -> Value)
584+ -> f a -> Tagged allNullary Value
585+
586+instance ( GetConName f
587+ , TaggedObjectPairs arity f
588+ , ObjectWithSingleFieldObj arity f
589+ , TwoElemArrayObj arity f
590+ ) => SumToJSON arity f True where
591+ sumToJSON opts pa tj tjl
592+ | allNullaryToStringTag opts = Tagged . String . pack
859593 . constructorTagModifier opts . getConName
860− | otherwise = Tagged . nonAllNullarySumToJSON opts targs
861−
862−instance ( TaggedObject enc arity f
863− , SumToJSON' ObjectWithSingleField enc arity f
864− , SumToJSON' TwoElemArray enc arity f
865− , SumToJSON' UntaggedValue enc arity f
866− ) => SumToJSON enc arity f False
867− where
868− sumToJSON opts targs = Tagged . nonAllNullarySumToJSON opts targs
869−
870−nonAllNullarySumToJSON :: ( TaggedObject enc arity f
871− , SumToJSON' ObjectWithSingleField enc arity f
872− , SumToJSON' TwoElemArray enc arity f
873− , SumToJSON' UntaggedValue enc arity f
874− ) => Options -> ToArgs enc arity a
875− -> f a -> enc
876−nonAllNullarySumToJSON opts targs =
594+ | otherwise = Tagged . nonAllNullarySumToJSON opts pa tj tjl
595+
596+instance ( TwoElemArrayObj arity f
597+ , TaggedObjectPairs arity f
598+ , ObjectWithSingleFieldObj arity f
599+ ) => SumToJSON arity f False where
600+ sumToJSON opts pa tj tjl = Tagged . nonAllNullarySumToJSON opts pa tj tjl
601+
602+nonAllNullarySumToJSON :: ( TwoElemArrayObj arity f
603+ , TaggedObjectPairs arity f
604+ , ObjectWithSingleFieldObj arity f
605+ ) => Options -> Proxy arity
606+ -> (a -> Value) -> ([a] -> Value)
607+ -> f a -> Value
608+nonAllNullarySumToJSON opts pa tj tjl =
877609 case sumEncoding opts of
878−
879610 TaggedObject{..} ->
880− taggedObject opts targs tagFieldName contentsFieldName
881−
882− ObjectWithSingleField ->
883− (unTagged :: Tagged ObjectWithSingleField enc -> enc)
884− . sumToJSON' opts targs
611+ object . taggedObjectPairs opts pa tagFieldName contentsFieldName tj tjl
612+ ObjectWithSingleField -> Object . objectWithSingleFieldObj opts pa tj tjl
613+ TwoElemArray -> Array . twoElemArrayObj opts pa tj tjl
885614
886− TwoElemArray ->
887− (unTagged :: Tagged TwoElemArray enc -> enc)
888− . sumToJSON' opts targs
615+--------------------------------------------------------------------------------
889616
890− UntaggedValue ->
891− (unTagged :: Tagged UntaggedValue enc -> enc)
892− . sumToJSON' opts targs
617+class SumToEncoding arity f allNullary where
618+ sumToEncoding :: Options -> Proxy arity
619+ -> (a -> Encoding) -> ([a] -> Encoding)
620+ -> f a -> Tagged allNullary Encoding
621+
622+instance ( GetConName f
623+ , TaggedObjectEnc arity f
624+ , ObjectWithSingleFieldEnc arity f
625+ , TwoElemArrayEnc arity f
626+ ) => SumToEncoding arity f True where
627+ sumToEncoding opts pa te tel
628+ | allNullaryToStringTag opts = Tagged . toEncoding .
629+ constructorTagModifier opts . getConName
630+ | otherwise = Tagged . nonAllNullarySumToEncoding opts pa te tel
631+
632+instance ( TwoElemArrayEnc arity f
633+ , TaggedObjectEnc arity f
634+ , ObjectWithSingleFieldEnc arity f
635+ ) => SumToEncoding arity f False where
636+ sumToEncoding opts pa te tel = Tagged . nonAllNullarySumToEncoding opts pa te tel
637+
638+nonAllNullarySumToEncoding :: ( TwoElemArrayEnc arity f
639+ , TaggedObjectEnc arity f
640+ , ObjectWithSingleFieldEnc arity f
641+ ) => Options -> Proxy arity
642+ -> (a -> Encoding) -> ([a] -> Encoding)
643+ -> f a -> Encoding
644+nonAllNullarySumToEncoding opts pa te tel =
645+ case sumEncoding opts of
646+ TaggedObject{..} ->
647+ taggedObjectEnc opts pa tagFieldName contentsFieldName te tel
648+ ObjectWithSingleField -> objectWithSingleFieldEnc opts pa te tel
649+ TwoElemArray -> twoElemArrayEnc opts pa te tel
893650
894651--------------------------------------------------------------------------------
895652
896−class FromString enc where
897− fromString :: String -> enc
653+class TaggedObjectPairs arity f where
654+ taggedObjectPairs :: Options -> Proxy arity
655+ -> String -> String
656+ -> (a -> Value) -> ([a] -> Value)
657+ -> f a -> [Pair]
658+
659+instance ( TaggedObjectPairs arity a
660+ , TaggedObjectPairs arity b
661+ ) => TaggedObjectPairs arity (a :+: b) where
662+ taggedObjectPairs opts pa tagFieldName contentsFieldName tj tjl (L1 x) =
663+ taggedObjectPairs opts pa tagFieldName contentsFieldName tj tjl x
664+ taggedObjectPairs opts pa tagFieldName contentsFieldName tj tjl (R1 x) =
665+ taggedObjectPairs opts pa tagFieldName contentsFieldName tj tjl x
666+
667+instance ( IsRecord a isRecord
668+ , TaggedObjectPairs' arity a isRecord
669+ , Constructor c
670+ ) => TaggedObjectPairs arity (C1 c a) where
671+ taggedObjectPairs opts pa tagFieldName contentsFieldName tj tjl =
672+ (pack tagFieldName .= constructorTagModifier opts
673+ (conName (undefined :: t c a p)) :) .
674+ (unTagged :: Tagged isRecord [Pair] -> [Pair]) .
675+ taggedObjectPairs' opts pa contentsFieldName tj tjl . unM1
898676
899−instance FromString Encoding where
900− fromString = toEncoding
677+class TaggedObjectPairs' arity f isRecord where
678+ taggedObjectPairs' :: Options -> Proxy arity
679+ -> String -> (a -> Value) -> ([a] -> Value)
680+ -> f a -> Tagged isRecord [Pair]
901681
902−instance FromString Value where
903− fromString = String . pack
682+instance OVERLAPPING_ TaggedObjectPairs' arity U1 False where
683+ taggedObjectPairs' _ _ _ _ _ _ = Tagged []
684+
685+instance (RecordToPairs arity f) => TaggedObjectPairs' arity f True where
686+ taggedObjectPairs' opts pa _ tj tjl =
687+ Tagged . toList . recordToPairs opts pa tj tjl
688+
689+instance (GToJSON arity f) => TaggedObjectPairs' arity f False where
690+ taggedObjectPairs' opts pa contentsFieldName tj tjl =
691+ Tagged . (:[]) . (pack contentsFieldName .=) . gToJSON opts pa tj tjl
904692
905693--------------------------------------------------------------------------------
906694
907−class TaggedObject enc arity f where
908− taggedObject :: Options -> ToArgs enc arity a
909− -> String -> String
910− -> f a -> enc
911−
912−instance ( TaggedObject enc arity a
913− , TaggedObject enc arity b
914− ) => TaggedObject enc arity (a :+: b)
915− where
916− taggedObject opts targs tagFieldName contentsFieldName (L1 x) =
917− taggedObject opts targs tagFieldName contentsFieldName x
918− taggedObject opts targs tagFieldName contentsFieldName (R1 x) =
919− taggedObject opts targs tagFieldName contentsFieldName x
920−
921−instance ( IsRecord a isRecord
922− , TaggedObject' enc pairs arity a isRecord
923− , FromPairs enc pairs
924− , FromString enc
925− , KeyValuePair enc pairs
695+class TaggedObjectEnc arity f where
696+ taggedObjectEnc :: Options -> Proxy arity
697+ -> String -> String
698+ -> (a -> Encoding) -> ([a] -> Encoding)
699+ -> f a -> Encoding
700+
701+instance ( TaggedObjectEnc arity a
702+ , TaggedObjectEnc arity b
703+ ) => TaggedObjectEnc arity (a :+: b) where
704+ taggedObjectEnc opts pa tagFieldName contentsFieldName te tel (L1 x) =
705+ taggedObjectEnc opts pa tagFieldName contentsFieldName te tel x
706+ taggedObjectEnc opts pa tagFieldName contentsFieldName te tel (R1 x) =
707+ taggedObjectEnc opts pa tagFieldName contentsFieldName te tel x
708+
709+instance ( IsRecord a isRecord
710+ , TaggedObjectEnc' arity a isRecord
926711 , Constructor c
927− ) => TaggedObject enc arity (C1 c a)
928− where
929− taggedObject opts targs tagFieldName contentsFieldName =
930− fromPairs . mappend tag . contents
931− where
932− tag = tagFieldName `pair`
933− (fromString (constructorTagModifier opts (conName (undefined :: t c a p)))
934− :: enc)
935− contents =
936− (unTagged :: Tagged isRecord pairs -> pairs) .
937− taggedObject' opts targs contentsFieldName . unM1
938−
939−class TaggedObject' enc pairs arity f isRecord where
940− taggedObject' :: Options -> ToArgs enc arity a
941− -> String -> f a -> Tagged isRecord pairs
942−
943−instance ( GToJSON enc arity f
944− , KeyValuePair enc pairs
945− ) => TaggedObject' enc pairs arity f False
946− where
947− taggedObject' opts targs contentsFieldName =
948− Tagged . (contentsFieldName `pair`) . gToJSON opts targs
949−
950−instance OVERLAPPING_ Monoid pairs => TaggedObject' enc pairs arity U1 False where
951− taggedObject' _ _ _ _ = Tagged mempty
952−
953−instance ( RecordToPairs enc pairs arity f
954− ) => TaggedObject' enc pairs arity f True
955− where
956− taggedObject' opts targs _ = Tagged . recordToPairs opts targs
712+ ) => TaggedObjectEnc arity (C1 c a) where
713+ taggedObjectEnc opts pa tagFieldName contentsFieldName te tel v =
714+ E.openCurly <>
715+ (toEncoding tagFieldName <>
716+ E.colon <>
717+ toEncoding (constructorTagModifier opts (conName (undefined :: t c a p)))) <>
718+ ((unTagged :: Tagged isRecord Encoding -> Encoding) .
719+ taggedObjectEnc' opts pa contentsFieldName te tel . unM1 $ v) <>
720+ E.closeCurly
721+
722+class TaggedObjectEnc' arity f isRecord where
723+ taggedObjectEnc' :: Options -> Proxy arity
724+ -> String -> (a -> Encoding) -> ([a] -> Encoding)
725+ -> f a -> Tagged isRecord Encoding
726+
727+instance OVERLAPPING_ TaggedObjectEnc' arity U1 False where
728+ taggedObjectEnc' _ _ _ _ _ _ = Tagged mempty
729+
730+instance (RecordToEncoding arity f) => TaggedObjectEnc' arity f True where
731+ taggedObjectEnc' opts pa _ te tel = Tagged . (E.comma <>) . fst
732+ . recordToEncoding opts pa te tel
733+
734+instance (GToEncoding arity f) => TaggedObjectEnc' arity f False where
735+ taggedObjectEnc' opts pa contentsFieldName te tel =
736+ Tagged . (\z -> E.comma <> toEncoding contentsFieldName <> E.colon <> z) .
737+ gToEncoding opts pa te tel
957738
958739--------------------------------------------------------------------------------
959740
@@ -968,242 +749,283 @@ instance (GetConName a, GetConName b) => GetConName (a :+: b) where
968749instance (Constructor c) => GetConName (C1 c a) where
969750 getConName = conName
970751
971−-- For genericToJSONKey
972−instance GetConName a => GetConName (D1 d a) where
973− getConName (M1 x) = getConName x
974−
975752--------------------------------------------------------------------------------
976753
977−-- Reflection of SumEncoding variants
754+class TwoElemArrayObj arity f where
755+ twoElemArrayObj :: Options -> Proxy arity
756+ -> (a -> Value) -> ([a] -> Value)
757+ -> f a -> V.Vector Value
978758
979−data ObjectWithSingleField
980−data TwoElemArray
981−data UntaggedValue
759+instance ( TwoElemArrayObj arity a
760+ , TwoElemArrayObj arity b
761+ ) => TwoElemArrayObj arity (a :+: b) where
762+ twoElemArrayObj opts pa tj tjl (L1 x) = twoElemArrayObj opts pa tj tjl x
763+ twoElemArrayObj opts pa tj tjl (R1 x) = twoElemArrayObj opts pa tj tjl x
982764
983−--------------------------------------------------------------------------------
984−
985−class SumToJSON' s enc arity f where
986− sumToJSON' :: Options -> ToArgs enc arity a
987− -> f a -> Tagged s enc
988−
989−instance ( SumToJSON' s enc arity a
990− , SumToJSON' s enc arity b
991− ) => SumToJSON' s enc arity (a :+: b)
992− where
993− sumToJSON' opts targs (L1 x) = sumToJSON' opts targs x
994− sumToJSON' opts targs (R1 x) = sumToJSON' opts targs x
995−
996−--------------------------------------------------------------------------------
997−
998−instance ( GToJSON Value arity a
999− , ConsToJSON Value arity a
765+instance ( GToJSON arity a
766+ , ConsToJSON arity a
1000767 , Constructor c
1001− ) => SumToJSON' TwoElemArray Value arity (C1 c a) where
1002− sumToJSON' opts targs x = Tagged $ Array $ V.create $ do
768+ ) => TwoElemArrayObj arity (C1 c a) where
769+ twoElemArrayObj opts pa tj tjl x = V.create $ do
1003770 mv <- VM.unsafeNew 2
1004771 VM.unsafeWrite mv 0 $ String $ pack $ constructorTagModifier opts
1005772 $ conName (undefined :: t c a p)
1006− VM.unsafeWrite mv 1 $ gToJSON opts targs x
773+ VM.unsafeWrite mv 1 $ gToJSON opts pa tj tjl x
1007774 return mv
1008775
1009776--------------------------------------------------------------------------------
1010777
1011−instance ( GToJSON Encoding arity a
1012− , ConsToJSON Encoding arity a
778+class TwoElemArrayEnc arity f where
779+ twoElemArrayEnc :: Options -> Proxy arity
780+ -> (a -> Encoding) -> ([a] -> Encoding)
781+ -> f a -> Encoding
782+
783+instance ( TwoElemArrayEnc arity a
784+ , TwoElemArrayEnc arity b
785+ ) => TwoElemArrayEnc arity (a :+: b) where
786+ twoElemArrayEnc opts pa te tel (L1 x) = twoElemArrayEnc opts pa te tel x
787+ twoElemArrayEnc opts pa te tel (R1 x) = twoElemArrayEnc opts pa te tel x
788+
789+instance ( GToEncoding arity a
790+ , ConsToEncoding arity a
1013791 , Constructor c
1014− ) => SumToJSON' TwoElemArray Encoding arity (C1 c a)
1015− where
1016− sumToJSON' opts targs x = Tagged $ E.list id
1017− [ toEncoding (constructorTagModifier opts (conName (undefined :: t c a p)))
1018− , gToJSON opts targs x
1019− ]
792+ ) => TwoElemArrayEnc arity (C1 c a) where
793+ twoElemArrayEnc opts pa te tel x = E.tuple $
794+ toEncoding (constructorTagModifier opts (conName (undefined :: t c a p))) >*<
795+ gToEncoding opts pa te tel x
796+
797+--------------------------------------------------------------------------------
798+
799+class ConsToJSON arity f where
800+ consToJSON :: Options -> Proxy arity
801+ -> (a -> Value) -> ([a] -> Value)
802+ -> f a -> Value
803+
804+class ConsToJSON' arity f isRecord where
805+ consToJSON' :: Options -> Proxy arity
806+ -> Bool -- ^ Are we a record with one field?
807+ -> (a -> Value) -> ([a] -> Value)
808+ -> f a -> Tagged isRecord Value
809+
810+instance ( IsRecord f isRecord
811+ , ConsToJSON' arity f isRecord
812+ ) => ConsToJSON arity f where
813+ consToJSON opts pa tj tjl =
814+ (unTagged :: Tagged isRecord Value -> Value)
815+ . consToJSON' opts pa (isUnary (undefined :: f a)) tj tjl
816+
817+instance (RecordToPairs arity f) => ConsToJSON' arity f True where
818+ consToJSON' opts pa isUn tj tjl f = let
819+ vals = toList $ recordToPairs opts pa tj tjl f
820+ in case (unwrapUnaryRecords opts,isUn,vals) of
821+ (True,True,[(_,val)]) -> Tagged val
822+ _ -> Tagged $ object vals
823+
824+instance GToJSON arity f => ConsToJSON' arity f False where
825+ consToJSON' opts pa _ tj tjl = Tagged . gToJSON opts pa tj tjl
1020826
1021827--------------------------------------------------------------------------------
1022828
1023−class ConsToJSON enc arity f where
1024− consToJSON :: Options -> ToArgs enc arity a
1025− -> f a -> enc
829+class ConsToEncoding arity f where
830+ consToEncoding :: Options -> Proxy arity
831+ -> (a -> Encoding) -> ([a] -> Encoding)
832+ -> f a -> Encoding
1026833
1027−class ConsToJSON' enc arity f isRecord where
1028− consToJSON' :: Options -> ToArgs enc arity a
1029− -> f a -> Tagged isRecord enc
834+class ConsToEncoding' arity f isRecord where
835+ consToEncoding' :: Options -> Proxy arity
836+ -> Bool -- ^ Are we a record with one field?
837+ -> (a -> Encoding) -> ([a] -> Encoding)
838+ -> f a -> Tagged isRecord Encoding
1030839
1031840instance ( IsRecord f isRecord
1032− , ConsToJSON' enc arity f isRecord
1033− ) => ConsToJSON enc arity f
1034− where
1035− consToJSON opts targs =
1036− (unTagged :: Tagged isRecord enc -> enc)
1037− . consToJSON' opts targs
1038− {-# INLINE consToJSON #-}
1039−
1040−instance OVERLAPPING_
1041− ( RecordToPairs enc pairs arity (S1 s f)
1042− , FromPairs enc pairs
1043− , GToJSON enc arity f
1044− ) => ConsToJSON' enc arity (S1 s f) True
1045− where
1046− consToJSON' opts targs
1047− | unwrapUnaryRecords opts = Tagged . gToJSON opts targs
1048− | otherwise = Tagged . fromPairs . recordToPairs opts targs
1049− {-# INLINE consToJSON' #-}
1050−
1051−instance ( RecordToPairs enc pairs arity f
1052− , FromPairs enc pairs
1053− ) => ConsToJSON' enc arity f True
1054− where
1055− consToJSON' opts targs = Tagged . fromPairs . recordToPairs opts targs
1056− {-# INLINE consToJSON' #-}
1057−
1058−instance GToJSON enc arity f => ConsToJSON' enc arity f False where
1059− consToJSON' opts targs = Tagged . gToJSON opts targs
1060− {-# INLINE consToJSON' #-}
841+ , ConsToEncoding' arity f isRecord
842+ ) => ConsToEncoding arity f where
843+ consToEncoding opts pa te tel =
844+ (unTagged :: Tagged isRecord Encoding -> Encoding)
845+ . consToEncoding' opts pa (isUnary (undefined :: f a)) te tel
846+
847+instance (RecordToEncoding arity f) => ConsToEncoding' arity f True where
848+ consToEncoding' opts pa isUn te tel x =
849+ let (enc, mbVal) = recordToEncoding opts pa te tel x
850+ in case (unwrapUnaryRecords opts, isUn, mbVal) of
851+ (True, True, Just val) -> Tagged val
852+ _ -> Tagged $ E.wrapObject enc
853+
854+instance GToEncoding arity f => ConsToEncoding' arity f False where
855+ consToEncoding' opts pa _ te tel = Tagged . gToEncoding opts pa te tel
1061856
1062857--------------------------------------------------------------------------------
1063858
1064−class RecordToPairs enc pairs arity f where
859+class RecordToPairs arity f where
860+ recordToPairs :: Options -> Proxy arity
861+ -> (a -> Value) -> ([a] -> Value)
862+ -> f a -> DList Pair
863+
864+instance ( RecordToPairs arity a
865+ , RecordToPairs arity b
866+ ) => RecordToPairs arity (a :*: b) where
867+ recordToPairs opts pa tj tjl (a :*: b) = recordToPairs opts pa tj tjl a <>
868+ recordToPairs opts pa tj tjl b
869+
870+instance (Selector s, GToJSON arity a) => RecordToPairs arity (S1 s a) where
871+ recordToPairs = fieldToPair
872+
873+instance OVERLAPPING_ (Selector s, ToJSON a) =>
874+ RecordToPairs arity (S1 s (K1 i (Maybe a))) where
875+ recordToPairs opts _ _ _ (M1 k1) | omitNothingFields opts
876+ , K1 Nothing <- k1 = DList.empty
877+ recordToPairs opts pa tj tjl m1 = fieldToPair opts pa tj tjl m1
878+
879+fieldToPair :: (Selector s, GToJSON arity a)
880+ => Options -> Proxy arity
881+ -> (p -> Value) -> ([p] -> Value)
882+ -> S1 s a p -> DList Pair
883+fieldToPair opts pa tj tjl m1 = pure ( pack $ fieldLabelModifier opts $ selName m1
884+ , gToJSON opts pa tj tjl (unM1 m1)
885+ )
886+
887+--------------------------------------------------------------------------------
888+
889+class RecordToEncoding arity f where
1065890 -- 1st element: whole thing
1066891 -- 2nd element: in case the record has only 1 field, just the value
1067892 -- of the field (without the key); 'Nothing' otherwise
1068− recordToPairs :: Options -> ToArgs enc arity a
1069− -> f a -> pairs
1070−
1071−instance ( Monoid pairs
1072− , RecordToPairs enc pairs arity a
1073− , RecordToPairs enc pairs arity b
1074− ) => RecordToPairs enc pairs arity (a :*: b)
1075− where
1076− recordToPairs opts (targs :: ToArgs enc arity p) (a :*: b) =
1077− pairsOf a `mappend` pairsOf b
1078− where
1079− pairsOf :: (RecordToPairs enc pairs arity f) => f p -> pairs
1080− pairsOf = recordToPairs opts targs
1081− {-# INLINE recordToPairs #-}
1082−
1083−instance ( Selector s
1084− , GToJSON enc arity a
1085− , KeyValuePair enc pairs
1086− ) => RecordToPairs enc pairs arity (S1 s a)
1087− where
1088− recordToPairs = fieldToPair
1089− {-# INLINE recordToPairs #-}
1090−
1091−instance INCOHERENT_
1092− ( Selector s
1093− , GToJSON enc arity (K1 i (Maybe a))
1094− , KeyValuePair enc pairs
1095− , Monoid pairs
1096− ) => RecordToPairs enc pairs arity (S1 s (K1 i (Maybe a)))
1097− where
1098− recordToPairs opts _ (M1 k1) | omitNothingFields opts
1099− , K1 Nothing <- k1 = mempty
1100− recordToPairs opts targs m1 = fieldToPair opts targs m1
1101− {-# INLINE recordToPairs #-}
1102−
1103−instance INCOHERENT_
1104− ( Selector s
1105− , GToJSON enc arity (K1 i (Maybe a))
1106− , KeyValuePair enc pairs
1107− , Monoid pairs
1108− ) => RecordToPairs enc pairs arity (S1 s (K1 i (Semigroup.Option a)))
1109− where
1110− recordToPairs opts targs = recordToPairs opts targs . unwrap
1111− where
1112− unwrap :: S1 s (K1 i (Semigroup.Option a)) p -> S1 s (K1 i (Maybe a)) p
1113− unwrap (M1 (K1 (Semigroup.Option a))) = M1 (K1 a)
1114− {-# INLINE recordToPairs #-}
1115−
1116−fieldToPair :: (Selector s
1117− , GToJSON enc arity a
1118− , KeyValuePair enc pairs)
1119− => Options -> ToArgs enc arity p
1120− -> S1 s a p -> pairs
1121−fieldToPair opts targs m1 =
1122− let key = fieldLabelModifier opts (selName m1)
1123− value = gToJSON opts targs (unM1 m1)
1124− in key `pair` value
1125−{-# INLINE fieldToPair #-}
893+ recordToEncoding :: Options -> Proxy arity
894+ -> (a -> Encoding) -> ([a] -> Encoding)
895+ -> f a -> (Encoding, Maybe Encoding)
896+
897+instance ( RecordToEncoding arity a
898+ , RecordToEncoding arity b
899+ ) => RecordToEncoding arity (a :*: b) where
900+ recordToEncoding opts pa te tel (a :*: b) | omitNothingFields opts =
901+ (mconcat $ intersperse E.comma $
902+ filter (not . E.nullEncoding)
903+ [ fst (recordToEncoding opts pa te tel a)
904+ , fst (recordToEncoding opts pa te tel b) ]
905+ , Nothing)
906+ recordToEncoding opts pa te tel (a :*: b) =
907+ (fst (recordToEncoding opts pa te tel a) <> E.comma <>
908+ fst (recordToEncoding opts pa te tel b),
909+ Nothing)
910+
911+instance (Selector s, GToEncoding arity a) => RecordToEncoding arity (S1 s a) where
912+ recordToEncoding = fieldToEncoding
913+
914+instance OVERLAPPING_ (Selector s, ToJSON a) =>
915+ RecordToEncoding arity (S1 s (K1 i (Maybe a))) where
916+ recordToEncoding opts _ _ _ (M1 k1) | omitNothingFields opts
917+ , K1 Nothing <- k1 = (mempty, Nothing)
918+ recordToEncoding opts pa te tel m1 = fieldToEncoding opts pa te tel m1
919+
920+fieldToEncoding :: (Selector s, GToEncoding arity a)
921+ => Options -> Proxy arity
922+ -> (p -> Encoding) -> ([p] -> Encoding)
923+ -> S1 s a p -> (Encoding, Maybe Encoding)
924+fieldToEncoding opts pa te tel m1 =
925+ let keyBuilder = toEncoding (fieldLabelModifier opts $ selName m1)
926+ valueBuilder = gToEncoding opts pa te tel (unM1 m1)
927+ in (keyBuilder <> E.colon <> valueBuilder, Just valueBuilder)
1126928
1127929--------------------------------------------------------------------------------
1128930
1129931class WriteProduct arity f where
1130932 writeProduct :: Options
1131− -> ToArgs Value arity a
933+ -> Proxy arity
1132934 -> VM.MVector s Value
1133935 -> Int -- ^ index
1134936 -> Int -- ^ length
937+ -> (a -> Value)
938+ -> ([a] -> Value)
1135939 -> f a
1136940 -> ST s ()
1137941
1138942instance ( WriteProduct arity a
1139943 , WriteProduct arity b
1140944 ) => WriteProduct arity (a :*: b) where
1141− writeProduct opts targs mv ix len (a :*: b) = do
1142− writeProduct opts targs mv ix lenL a
1143− writeProduct opts targs mv ixR lenR b
945+ writeProduct opts pa mv ix len tj tjl (a :*: b) = do
946+ writeProduct opts pa mv ix lenL tj tjl a
947+ writeProduct opts pa mv ixR lenR tj tjl b
1144948 where
1145949 lenL = len `unsafeShiftR` 1
1146950 lenR = len - lenL
1147951 ixR = ix + lenL
1148− {-# INLINE writeProduct #-}
1149952
1150−instance OVERLAPPABLE_ (GToJSON Value arity a) => WriteProduct arity a where
1151− writeProduct opts targs mv ix _ =
1152− VM.unsafeWrite mv ix . gToJSON opts targs
1153− {-# INLINE writeProduct #-}
953+instance OVERLAPPABLE_ (GToJSON arity a) => WriteProduct arity a where
954+ writeProduct opts pa mv ix _ tj tjl =
955+ VM.unsafeWrite mv ix . gToJSON opts pa tj tjl
1154956
1155957--------------------------------------------------------------------------------
1156958
1157959class EncodeProduct arity f where
1158− encodeProduct :: Options -> ToArgs Encoding arity a
1159− -> f a -> Encoding' E.InArray
960+ encodeProduct :: Options -> Proxy arity
961+ -> (a -> Encoding) -> ([a] -> Encoding)
962+ -> f a -> Encoding
1160963
1161964instance ( EncodeProduct arity a
1162965 , EncodeProduct arity b
1163966 ) => EncodeProduct arity (a :*: b) where
1164− encodeProduct opts targs (a :*: b) | omitNothingFields opts =
1165− E.econcat $ intersperse E.comma $
967+ encodeProduct opts pa te tel (a :*: b) | omitNothingFields opts =
968+ mconcat $ intersperse E.comma $
1166969 filter (not . E.nullEncoding)
1167− [encodeProduct opts targs a, encodeProduct opts targs b]
1168− encodeProduct opts targs (a :*: b) =
1169− encodeProduct opts targs a >*<
1170− encodeProduct opts targs b
1171− {-# INLINE encodeProduct #-}
970+ [encodeProduct opts pa te tel a, encodeProduct opts pa te tel b]
971+ encodeProduct opts pa te tel (a :*: b) = encodeProduct opts pa te tel a <>
972+ E.comma <>
973+ encodeProduct opts pa te tel b
1172974
1173−instance OVERLAPPABLE_ (GToJSON Encoding arity a) => EncodeProduct arity a where
1174− encodeProduct opts targs a = E.retagEncoding $ gToJSON opts targs a
1175− {-# INLINE encodeProduct #-}
975+instance OVERLAPPABLE_ (GToEncoding arity a) => EncodeProduct arity a where
976+ encodeProduct opts = gToEncoding opts
1176977
1177978--------------------------------------------------------------------------------
1178979
1179−instance ( GToJSON enc arity a
1180− , ConsToJSON enc arity a
1181− , FromPairs enc pairs
1182− , KeyValuePair enc pairs
980+class ObjectWithSingleFieldObj arity f where
981+ objectWithSingleFieldObj :: Options -> Proxy arity
982+ -> (a -> Value) -> ([a] -> Value)
983+ -> f a -> Object
984+
985+instance ( ObjectWithSingleFieldObj arity a
986+ , ObjectWithSingleFieldObj arity b
987+ ) => ObjectWithSingleFieldObj arity (a :+: b) where
988+ objectWithSingleFieldObj opts pa tj tjl (L1 x) =
989+ objectWithSingleFieldObj opts pa tj tjl x
990+ objectWithSingleFieldObj opts pa tj tjl (R1 x) =
991+ objectWithSingleFieldObj opts pa tj tjl x
992+
993+instance ( GToJSON arity a
994+ , ConsToJSON arity a
1183995 , Constructor c
1184− ) => SumToJSON' ObjectWithSingleField enc arity (C1 c a)
1185− where
1186− sumToJSON' opts targs =
1187− Tagged . fromPairs . (typ `pair`) . gToJSON opts targs
996+ ) => ObjectWithSingleFieldObj arity (C1 c a) where
997+ objectWithSingleFieldObj opts pa tj tjl = H.singleton typ . gToJSON opts pa tj tjl
1188998 where
1189− typ = constructorTagModifier opts $
999+ typ = pack $ constructorTagModifier opts $
11901000 conName (undefined :: t c a p)
11911001
11921002--------------------------------------------------------------------------------
11931003
1194−instance OVERLAPPABLE_
1195− ( ConsToJSON enc arity a
1196− ) => SumToJSON' UntaggedValue enc arity (C1 c a)
1197− where
1198− sumToJSON' opts targs = Tagged . gToJSON opts targs
1199−
1200−instance OVERLAPPING_
1201− ( Constructor c
1202− , FromString enc
1203− ) => SumToJSON' UntaggedValue enc arity (C1 c U1)
1204− where
1205− sumToJSON' opts _ _ = Tagged . fromString $
1206− constructorTagModifier opts $ conName (undefined :: t c U1 p)
1004+class ObjectWithSingleFieldEnc arity f where
1005+ objectWithSingleFieldEnc :: Options -> Proxy arity
1006+ -> (a -> Encoding) -> ([a] -> Encoding)
1007+ -> f a -> Encoding
1008+
1009+instance ( ObjectWithSingleFieldEnc arity a
1010+ , ObjectWithSingleFieldEnc arity b
1011+ ) => ObjectWithSingleFieldEnc arity (a :+: b) where
1012+ objectWithSingleFieldEnc opts pa te tel (L1 x) =
1013+ objectWithSingleFieldEnc opts pa te tel x
1014+ objectWithSingleFieldEnc opts pa te tel (R1 x) =
1015+ objectWithSingleFieldEnc opts pa te tel x
1016+
1017+instance ( GToEncoding arity a
1018+ , ConsToEncoding arity a
1019+ , Constructor c
1020+ ) => ObjectWithSingleFieldEnc arity (C1 c a) where
1021+ objectWithSingleFieldEnc opts pa te tel v =
1022+ E.openCurly <>
1023+ toEncoding
1024+ (constructorTagModifier opts
1025+ (conName (undefined :: t c a p))) <>
1026+ E.colon <>
1027+ gToEncoding opts pa te tel v <>
1028+ E.closeCurly
12071029
12081030-------------------------------------------------------------------------------
12091031-- Instances
@@ -1213,6 +1035,21 @@ instance OVERLAPPING_
12131035-- base
12141036-------------------------------------------------------------------------------
12151037
1038+instance ToJSON1 Identity where
1039+ liftToJSON t _ (Identity a) = t a
1040+ {-# INLINE liftToJSON #-}
1041+
1042+ liftToEncoding t _ (Identity a) = t a
1043+ {-# INLINE liftToEncoding #-}
1044+
1045+instance (ToJSON a) => ToJSON (Identity a) where
1046+ toJSON = toJSON1
1047+ {-# INLINE toJSON #-}
1048+
1049+ toEncoding = toEncoding1
1050+ {-# INLINE toEncoding #-}
1051+
1052+
12161053instance ToJSON2 Const where
12171054 liftToJSON2 t _ _ _ (Const x) = t x
12181055 {-# INLINE liftToJSON2 #-}
@@ -1253,8 +1090,8 @@ instance (ToJSON a) => ToJSON (Maybe a) where
12531090
12541091
12551092instance ToJSON2 Either where
1256− liftToJSON2 toA _ _toB _ (Left a) = Object $ H.singleton "Left" (toA a)
1257− liftToJSON2 _toA _ toB _ (Right b) = Object $ H.singleton "Right" (toB b)
1093+ liftToJSON2 toA _ _toB _ (Left a) = Object $ H.singleton left (toA a)
1094+ liftToJSON2 _toA _ toB _ (Right b) = Object $ H.singleton right (toB b)
12581095 {-# INLINE liftToJSON2 #-}
12591096
12601097 liftToEncoding2 toA _ _toB _ (Left a) = E.pairs $ E.pair "Left" $ toA a
@@ -1276,12 +1113,9 @@ instance (ToJSON a, ToJSON b) => ToJSON (Either a b) where
12761113 toEncoding = toEncoding2
12771114 {-# INLINE toEncoding #-}
12781115
1279−instance ToJSON Void where
1280− toJSON = absurd
1281− {-# INLINE toJSON #-}
1282−
1283− toEncoding = absurd
1284− {-# INLINE toEncoding #-}
1116+left, right :: Text
1117+left = "Left"
1118+right = "Right"
12851119
12861120
12871121instance ToJSON Bool where
@@ -1292,7 +1126,10 @@ instance ToJSON Bool where
12921126 {-# INLINE toEncoding #-}
12931127
12941128instance ToJSONKey Bool where
1295− toJSONKey = toJSONKeyText $ \x -> if x then "true" else "false"
1129+ toJSONKey = ToJSONKeyText
1130+ ( (\x -> if x then "true" else "false")
1131+ , (\x -> toEncoding $ if x then ("true" :: Text) else "false")
1132+ )
12961133
12971134
12981135instance ToJSON Ordering where
@@ -1468,6 +1305,7 @@ instance ToJSONKey Int64 where
14681305 toJSONKey = toJSONKeyTextEnc E.int64Text
14691306 {-# INLINE toJSONKey #-}
14701307
1308+
14711309instance ToJSON Word where
14721310 toJSON = Number . fromIntegral
14731311 {-# INLINE toJSON #-}
@@ -1527,12 +1365,6 @@ instance ToJSONKey Word64 where
15271365 toJSONKey = toJSONKeyTextEnc E.word64Text
15281366 {-# INLINE toJSONKey #-}
15291367
1530−instance ToJSON CTime where
1531− toJSON (CTime i) = toJSON i
1532− {-# INLINE toJSON #-}
1533−
1534− toEncoding (CTime i) = toEncoding i
1535− {-# INLINE toEncoding #-}
15361368
15371369instance ToJSON Text where
15381370 toJSON = String
@@ -1542,10 +1374,9 @@ instance ToJSON Text where
15421374 {-# INLINE toEncoding #-}
15431375
15441376instance ToJSONKey Text where
1545− toJSONKey = toJSONKeyText id
1377+ toJSONKey = ToJSONKeyText (id, toEncoding)
15461378 {-# INLINE toJSONKey #-}
15471379
1548−
15491380instance ToJSON LT.Text where
15501381 toJSON = String . LT.toStrict
15511382 {-# INLINE toJSON #-}
@@ -1553,10 +1384,6 @@ instance ToJSON LT.Text where
15531384 toEncoding = E.lazyText
15541385 {-# INLINE toEncoding #-}
15551386
1556−instance ToJSONKey LT.Text where
1557− toJSONKey = toJSONKeyText LT.toStrict
1558−
1559−
15601387instance ToJSON Version where
15611388 toJSON = toJSON . showVersion
15621389 {-# INLINE toJSON #-}
@@ -1564,9 +1391,6 @@ instance ToJSON Version where
15641391 toEncoding = toEncoding . showVersion
15651392 {-# INLINE toEncoding #-}
15661393
1567−instance ToJSONKey Version where
1568− toJSONKey = toJSONKeyText (T.pack . showVersion)
1569−
15701394-------------------------------------------------------------------------------
15711395-- semigroups NonEmpty
15721396-------------------------------------------------------------------------------
@@ -1617,116 +1441,6 @@ instance (ToJSON a) => ToJSON (DList.DList a) where
16171441 toEncoding = toEncoding1
16181442 {-# INLINE toEncoding #-}
16191443
1620−-------------------------------------------------------------------------------
1621−-- transformers - Functors
1622−-------------------------------------------------------------------------------
1623−
1624−instance ToJSON1 Identity where
1625− liftToJSON t _ (Identity a) = t a
1626− {-# INLINE liftToJSON #-}
1627−
1628− liftToJSONList _ tl xs = tl (map runIdentity xs)
1629− {-# INLINE liftToJSONList #-}
1630−
1631− liftToEncoding t _ (Identity a) = t a
1632− {-# INLINE liftToEncoding #-}
1633−
1634− liftToEncodingList _ tl xs = tl (map runIdentity xs)
1635− {-# INLINE liftToEncodingList #-}
1636−
1637−instance (ToJSON a) => ToJSON (Identity a) where
1638− toJSON = toJSON1
1639− {-# INLINE toJSON #-}
1640−
1641− toJSONList = liftToJSONList toJSON toJSONList
1642− {-# INLINE toJSONList #-}
1643−
1644− toEncoding = toEncoding1
1645− {-# INLINE toEncoding #-}
1646−
1647− toEncodingList = liftToEncodingList toEncoding toEncodingList
1648− {-# INLINE toEncodingList #-}
1649−
1650−instance (ToJSONKey a) => ToJSONKey (Identity a) where
1651− toJSONKey = contramapToJSONKeyFunction runIdentity toJSONKey
1652− toJSONKeyList = contramapToJSONKeyFunction (map runIdentity) toJSONKeyList
1653−
1654−
1655−instance (ToJSON1 f, ToJSON1 g) => ToJSON1 (Compose f g) where
1656− liftToJSON tv tvl (Compose x) = liftToJSON g gl x
1657− where
1658− g = liftToJSON tv tvl
1659− gl = liftToJSONList tv tvl
1660− {-# INLINE liftToJSON #-}
1661−
1662− liftToJSONList te tel xs = liftToJSONList g gl (map getCompose xs)
1663− where
1664− g = liftToJSON te tel
1665− gl = liftToJSONList te tel
1666− {-# INLINE liftToJSONList #-}
1667−
1668− liftToEncoding te tel (Compose x) = liftToEncoding g gl x
1669− where
1670− g = liftToEncoding te tel
1671− gl = liftToEncodingList te tel
1672− {-# INLINE liftToEncoding #-}
1673−
1674− liftToEncodingList te tel xs = liftToEncodingList g gl (map getCompose xs)
1675− where
1676− g = liftToEncoding te tel
1677− gl = liftToEncodingList te tel
1678− {-# INLINE liftToEncodingList #-}
1679−
1680−instance (ToJSON1 f, ToJSON1 g, ToJSON a) => ToJSON (Compose f g a) where
1681− toJSON = toJSON1
1682− {-# INLINE toJSON #-}
1683−
1684− toJSONList = liftToJSONList toJSON toJSONList
1685− {-# INLINE toJSONList #-}
1686−
1687− toEncoding = toEncoding1
1688− {-# INLINE toEncoding #-}
1689−
1690− toEncodingList = liftToEncodingList toEncoding toEncodingList
1691− {-# INLINE toEncodingList #-}
1692−
1693−
1694−instance (ToJSON1 f, ToJSON1 g) => ToJSON1 (Product f g) where
1695− liftToJSON tv tvl (Pair x y) = liftToJSON2 tx txl ty tyl (x, y)
1696− where
1697− tx = liftToJSON tv tvl
1698− txl = liftToJSONList tv tvl
1699− ty = liftToJSON tv tvl
1700− tyl = liftToJSONList tv tvl
1701−
1702− liftToEncoding te tel (Pair x y) = liftToEncoding2 tx txl ty tyl (x, y)
1703− where
1704− tx = liftToEncoding te tel
1705− txl = liftToEncodingList te tel
1706− ty = liftToEncoding te tel
1707− tyl = liftToEncodingList te tel
1708−
1709−instance (ToJSON1 f, ToJSON1 g, ToJSON a) => ToJSON (Product f g a) where
1710− toJSON = toJSON1
1711− {-# INLINE toJSON #-}
1712−
1713− toEncoding = toEncoding1
1714− {-# INLINE toEncoding #-}
1715−
1716−instance (ToJSON1 f, ToJSON1 g) => ToJSON1 (Sum f g) where
1717− liftToJSON tv tvl (InL x) = Object $ H.singleton "InL" (liftToJSON tv tvl x)
1718− liftToJSON tv tvl (InR y) = Object $ H.singleton "InR" (liftToJSON tv tvl y)
1719−
1720− liftToEncoding te tel (InL x) = E.pairs $ E.pair "InL" $ liftToEncoding te tel x
1721− liftToEncoding te tel (InR y) = E.pairs $ E.pair "InR" $ liftToEncoding te tel y
1722−
1723−instance (ToJSON1 f, ToJSON1 g, ToJSON a) => ToJSON (Sum f g a) where
1724− toJSON = toJSON1
1725− {-# INLINE toJSON #-}
1726−
1727− toEncoding = toEncoding1
1728− {-# INLINE toEncoding #-}
1729−
17301444-------------------------------------------------------------------------------
17311445-- containers
17321446-------------------------------------------------------------------------------
@@ -1792,15 +1506,17 @@ instance ToJSON a => ToJSON (IntMap.IntMap a) where
17921506
17931507instance ToJSONKey k => ToJSON1 (M.Map k) where
17941508 liftToJSON g _ = case toJSONKey of
1795− ToJSONKeyText f _ -> Object . mapHashKeyVal f g
1796− ToJSONKeyValue f _ -> Array . V.fromList . map (toJSONPair f g) . M.toList
1509+ ToJSONKeyText (f,_) -> Object . mapHashKeyVal f g
1510+ ToJSONKeyValue (f,_) -> Array . V.fromList . map (toJSONPair f g) . M.toList
17971511 {-# INLINE liftToJSON #-}
17981512
1513+ -- liftToEncoding :: forall a. (a -> Encoding) -> ([a] -> Encoding) -> M.Map k a -> Encoding
17991514 liftToEncoding g _ = case toJSONKey of
1800− ToJSONKeyText _ f -> dict f g M.foldrWithKey
1801− ToJSONKeyValue _ f -> listEncoding (pairEncoding f) . M.toList
1515+ ToJSONKeyText (_,f) -> dict f g M.foldrWithKey
1516+ ToJSONKeyValue (_,f) -> listEncoding (pairEncoding f) . M.toList
18021517 where
1803− pairEncoding f (a, b) = E.list id [f a, g b]
1518+ -- pairEncoding :: (k -> Encoding) -> (k, a) -> Encoding
1519+ pairEncoding f (a, b) = tuple $ f a >*< g b
18041520 {-# INLINE liftToEncoding #-}
18051521
18061522
@@ -1838,17 +1554,6 @@ instance (ToJSON v) => ToJSON (Tree.Tree v) where
18381554 toEncoding = toEncoding1
18391555 {-# INLINE toEncoding #-}
18401556
1841−-------------------------------------------------------------------------------
1842−-- uuid
1843−-------------------------------------------------------------------------------
1844−
1845−instance ToJSON UUID.UUID where
1846− toJSON = toJSON . UUID.toText
1847− toEncoding = E.unsafeToEncoding . EB.quote . B.byteString . UUID.toASCIIBytes
1848−
1849−instance ToJSONKey UUID.UUID where
1850− toJSONKey = ToJSONKeyText UUID.toText $
1851− E.unsafeToEncoding . EB.quote . B.byteString . UUID.toASCIIBytes
18521557
18531558-------------------------------------------------------------------------------
18541559-- vector
@@ -1862,12 +1567,10 @@ instance ToJSON1 Vector where
18621567 {-# INLINE liftToEncoding #-}
18631568
18641569instance (ToJSON a) => ToJSON (Vector a) where
1865− {-# SPECIALIZE instance ToJSON Array #-}
1866−
1867− toJSON = toJSON1
1570+ toJSON = Array . V.map toJSON
18681571 {-# INLINE toJSON #-}
18691572
1870− toEncoding = toEncoding1
1573+ toEncoding = encodeVector
18711574 {-# INLINE toEncoding #-}
18721575
18731576encodeVector :: (ToJSON a, VG.Vector v a) => v a -> Encoding
@@ -1922,21 +1625,20 @@ instance (ToJSON a) => ToJSON (HashSet.HashSet a) where
19221625
19231626instance ToJSONKey k => ToJSON1 (H.HashMap k) where
19241627 liftToJSON g _ = case toJSONKey of
1925− ToJSONKeyText f _ -> Object . mapKeyVal f g
1926− ToJSONKeyValue f _ -> Array . V.fromList . map (toJSONPair f g) . H.toList
1628+ ToJSONKeyText (f,_) -> Object . mapKeyVal f g
1629+ ToJSONKeyValue (f,_) -> Array . V.fromList . map (toJSONPair f g) . H.toList
19271630 {-# INLINE liftToJSON #-}
19281631
19291632 -- liftToEncoding :: forall a. (a -> Encoding) -> ([a] -> Encoding) -> H.HashMap k a -> Encoding
19301633 liftToEncoding g _ = case toJSONKey of
1931− ToJSONKeyText _ f -> dict f g H.foldrWithKey
1932− ToJSONKeyValue _ f -> listEncoding (pairEncoding f) . H.toList
1634+ ToJSONKeyText (_,f) -> dict f g H.foldrWithKey
1635+ ToJSONKeyValue (_,f) -> listEncoding (pairEncoding f) . H.toList
19331636 where
1934− pairEncoding f (a, b) = E.list id [f a, g b]
1637+ -- pairEncoding :: (k -> Encoding) -> (k, a) -> Encoding
1638+ pairEncoding f (a, b) = tuple $ f a >*< g b
19351639 {-# INLINE liftToEncoding #-}
19361640
19371641instance (ToJSON v, ToJSONKey k) => ToJSON (H.HashMap k v) where
1938− {-# SPECIALIZE instance ToJSON Object #-}
1939−
19401642 toJSON = toJSON1
19411643 {-# INLINE toJSON #-}
19421644
@@ -1966,32 +1668,6 @@ dotNetTime (DotNetTime t) = secs ++ formatMillis t ++ ")/"
19661668formatMillis :: (FormatTime t) => t -> String
19671669formatMillis = take 3 . formatTime defaultTimeLocale "%q"
19681670
1969−-------------------------------------------------------------------------------
1970−-- primitive
1971−-------------------------------------------------------------------------------
1972−
1973−instance ToJSON a => ToJSON (PM.Array a) where
1974− -- note: we could do better than this if vector exposed the data
1975− -- constructor in Data.Vector.
1976− toJSON = toJSON . Exts.toList
1977− toEncoding = toEncoding . Exts.toList
1978−
1979−instance ToJSON a => ToJSON (PM.SmallArray a) where
1980− toJSON = toJSON . Exts.toList
1981− toEncoding = toEncoding . Exts.toList
1982−
1983−#if (MIN_VERSION_primitive(0,6,4))
1984−instance (PM.Prim a,ToJSON a) => ToJSON (PM.PrimArray a) where
1985− toJSON = toJSON . Exts.toList
1986− toEncoding = toEncoding . Exts.toList
1987−
1988−#if !MIN_VERSION_primitive(0,7,0)
1989−instance (PM.PrimUnlifted a,ToJSON a) => ToJSON (PM.UnliftedArray a) where
1990− toJSON = toJSON . Exts.toList
1991− toEncoding = toEncoding . Exts.toList
1992−#endif
1993−#endif
1994−
19951671-------------------------------------------------------------------------------
19961672-- time
19971673-------------------------------------------------------------------------------
@@ -2036,15 +1712,15 @@ instance ToJSONKey UTCTime where
20361712 toJSONKey = toJSONKeyTextEnc E.utcTime
20371713
20381714-- | Encode something t a JSON string.
2039−stringEncoding :: Encoding' Text -> Value
1715+stringEncoding :: Encoding -> Value
20401716stringEncoding = String
20411717 . T.dropAround (== '"')
20421718 . T.decodeLatin1
20431719 . L.toStrict
2044− . E.encodingToLazyByteString
1720+ . B.toLazyByteString
1721+ . fromEncoding
20451722{-# INLINE stringEncoding #-}
20461723
2047−
20481724instance ToJSON NominalDiffTime where
20491725 toJSON = Number . realToFrac
20501726 {-# INLINE toJSON #-}
@@ -2052,70 +1728,18 @@ instance ToJSON NominalDiffTime where
20521728 toEncoding = E.scientific . realToFrac
20531729 {-# INLINE toEncoding #-}
20541730
2055−
2056−instance ToJSON DiffTime where
2057− toJSON = Number . realToFrac
2058− {-# INLINE toJSON #-}
2059−
2060− toEncoding = E.scientific . realToFrac
2061− {-# INLINE toEncoding #-}
2062−
2063−-- | Encoded as number
2064−instance ToJSON SystemTime where
2065− toJSON (MkSystemTime secs nsecs) =
2066− toJSON (fromIntegral secs + fromIntegral nsecs / 1000000000 :: Nano)
2067− toEncoding (MkSystemTime secs nsecs) =
2068− toEncoding (fromIntegral secs + fromIntegral nsecs / 1000000000 :: Nano)
2069−
2070−instance ToJSON CalendarDiffTime where
2071− toJSON (CalendarDiffTime m nt) = object
2072− [ "months" .= m
2073− , "time" .= nt
2074− ]
2075− toEncoding (CalendarDiffTime m nt) = E.pairs
2076− ("months" .= m <> "time" .= nt)
2077−
2078−instance ToJSON CalendarDiffDays where
2079− toJSON (CalendarDiffDays m d) = object
2080− [ "months" .= m
2081− , "days" .= d
2082− ]
2083− toEncoding (CalendarDiffDays m d) = E.pairs
2084− ("months" .= m <> "days" .= d)
2085−
2086−instance ToJSON DayOfWeek where
2087− toJSON Monday = "monday"
2088− toJSON Tuesday = "tuesday"
2089− toJSON Wednesday = "wednesday"
2090− toJSON Thursday = "thursday"
2091− toJSON Friday = "friday"
2092− toJSON Saturday = "saturday"
2093− toJSON Sunday = "sunday"
2094−
2095−toEncodingDayOfWeek :: DayOfWeek -> E.Encoding' Text
2096−toEncodingDayOfWeek Monday = E.unsafeToEncoding "\"monday\""
2097−toEncodingDayOfWeek Tuesday = E.unsafeToEncoding "\"tuesday\""
2098−toEncodingDayOfWeek Wednesday = E.unsafeToEncoding "\"wednesday\""
2099−toEncodingDayOfWeek Thursday = E.unsafeToEncoding "\"thursday\""
2100−toEncodingDayOfWeek Friday = E.unsafeToEncoding "\"friday\""
2101−toEncodingDayOfWeek Saturday = E.unsafeToEncoding "\"saturday\""
2102−toEncodingDayOfWeek Sunday = E.unsafeToEncoding "\"sunday\""
2103−
2104−instance ToJSONKey DayOfWeek where
2105− toJSONKey = toJSONKeyTextEnc toEncodingDayOfWeek
2106−
21071731-------------------------------------------------------------------------------
21081732-- base Monoid/Semigroup
21091733-------------------------------------------------------------------------------
21101734
2111−instance ToJSON1 Monoid.Dual where
2112− liftToJSON t _ = t . Monoid.getDual
1735+instance ToJSON1 Dual where
1736+ liftToJSON t _ = t . getDual
21131737 {-# INLINE liftToJSON #-}
21141738
2115− liftToEncoding t _ = t . Monoid.getDual
1739+ liftToEncoding t _ = t . getDual
21161740 {-# INLINE liftToEncoding #-}
21171741
2118−instance ToJSON a => ToJSON (Monoid.Dual a) where
1742+instance ToJSON a => ToJSON (Dual a) where
21191743 toJSON = toJSON1
21201744 {-# INLINE toJSON #-}
21211745
@@ -2123,14 +1747,14 @@ instance ToJSON a => ToJSON (Monoid.Dual a) where
21231747 {-# INLINE toEncoding #-}
21241748
21251749
2126−instance ToJSON1 Monoid.First where
2127− liftToJSON t to' = liftToJSON t to' . Monoid.getFirst
1750+instance ToJSON1 First where
1751+ liftToJSON t to' = liftToJSON t to' . getFirst
21281752 {-# INLINE liftToJSON #-}
21291753
2130− liftToEncoding t to' = liftToEncoding t to' . Monoid.getFirst
1754+ liftToEncoding t to' = liftToEncoding t to' . getFirst
21311755 {-# INLINE liftToEncoding #-}
21321756
2133−instance ToJSON a => ToJSON (Monoid.First a) where
1757+instance ToJSON a => ToJSON (First a) where
21341758 toJSON = toJSON1
21351759 {-# INLINE toJSON #-}
21361760
@@ -2138,103 +1762,14 @@ instance ToJSON a => ToJSON (Monoid.First a) where
21381762 {-# INLINE toEncoding #-}
21391763
21401764
2141−instance ToJSON1 Monoid.Last where
2142− liftToJSON t to' = liftToJSON t to' . Monoid.getLast
1765+instance ToJSON1 Last where
1766+ liftToJSON t to' = liftToJSON t to' . getLast
21431767 {-# INLINE liftToJSON #-}
21441768
2145− liftToEncoding t to' = liftToEncoding t to' . Monoid.getLast
1769+ liftToEncoding t to' = liftToEncoding t to' . getLast
21461770 {-# INLINE liftToEncoding #-}
21471771
2148−instance ToJSON a => ToJSON (Monoid.Last a) where
2149− toJSON = toJSON1
2150− {-# INLINE toJSON #-}
2151−
2152− toEncoding = toEncoding1
2153− {-# INLINE toEncoding #-}
2154−
2155−
2156−instance ToJSON1 Semigroup.Min where
2157− liftToJSON t _ (Semigroup.Min x) = t x
2158− {-# INLINE liftToJSON #-}
2159−
2160− liftToEncoding t _ (Semigroup.Min x) = t x
2161− {-# INLINE liftToEncoding #-}
2162−
2163−instance ToJSON a => ToJSON (Semigroup.Min a) where
2164− toJSON = toJSON1
2165− {-# INLINE toJSON #-}
2166−
2167− toEncoding = toEncoding1
2168− {-# INLINE toEncoding #-}
2169−
2170−
2171−instance ToJSON1 Semigroup.Max where
2172− liftToJSON t _ (Semigroup.Max x) = t x
2173− {-# INLINE liftToJSON #-}
2174−
2175− liftToEncoding t _ (Semigroup.Max x) = t x
2176− {-# INLINE liftToEncoding #-}
2177−
2178−instance ToJSON a => ToJSON (Semigroup.Max a) where
2179− toJSON = toJSON1
2180− {-# INLINE toJSON #-}
2181−
2182− toEncoding = toEncoding1
2183− {-# INLINE toEncoding #-}
2184−
2185−instance ToJSON1 Semigroup.First where
2186− liftToJSON t _ (Semigroup.First x) = t x
2187− {-# INLINE liftToJSON #-}
2188−
2189− liftToEncoding t _ (Semigroup.First x) = t x
2190− {-# INLINE liftToEncoding #-}
2191−
2192−instance ToJSON a => ToJSON (Semigroup.First a) where
2193− toJSON = toJSON1
2194− {-# INLINE toJSON #-}
2195−
2196− toEncoding = toEncoding1
2197− {-# INLINE toEncoding #-}
2198−
2199−
2200−instance ToJSON1 Semigroup.Last where
2201− liftToJSON t _ (Semigroup.Last x) = t x
2202− {-# INLINE liftToJSON #-}
2203−
2204− liftToEncoding t _ (Semigroup.Last x) = t x
2205− {-# INLINE liftToEncoding #-}
2206−
2207−instance ToJSON a => ToJSON (Semigroup.Last a) where
2208− toJSON = toJSON1
2209− {-# INLINE toJSON #-}
2210−
2211− toEncoding = toEncoding1
2212− {-# INLINE toEncoding #-}
2213−
2214−
2215−instance ToJSON1 Semigroup.WrappedMonoid where
2216− liftToJSON t _ (Semigroup.WrapMonoid x) = t x
2217− {-# INLINE liftToJSON #-}
2218−
2219− liftToEncoding t _ (Semigroup.WrapMonoid x) = t x
2220− {-# INLINE liftToEncoding #-}
2221−
2222−instance ToJSON a => ToJSON (Semigroup.WrappedMonoid a) where
2223− toJSON = toJSON1
2224− {-# INLINE toJSON #-}
2225−
2226− toEncoding = toEncoding1
2227− {-# INLINE toEncoding #-}
2228−
2229−
2230−instance ToJSON1 Semigroup.Option where
2231− liftToJSON t to' = liftToJSON t to' . Semigroup.getOption
2232− {-# INLINE liftToJSON #-}
2233−
2234− liftToEncoding t to' = liftToEncoding t to' . Semigroup.getOption
2235− {-# INLINE liftToEncoding #-}
2236−
2237−instance ToJSON a => ToJSON (Semigroup.Option a) where
1772+instance ToJSON a => ToJSON (Last a) where
22381773 toJSON = toJSON1
22391774 {-# INLINE toJSON #-}
22401775
@@ -2245,13 +1780,6 @@ instance ToJSON a => ToJSON (Semigroup.Option a) where
22451780-- tagged
22461781-------------------------------------------------------------------------------
22471782
2248−instance ToJSON1 Proxy where
2249− liftToJSON _ _ _ = Null
2250− {-# INLINE liftToJSON #-}
2251−
2252− liftToEncoding _ _ _ = E.null_
2253− {-# INLINE liftToEncoding #-}
2254−
22551783instance ToJSON (Proxy a) where
22561784 toJSON _ = Null
22571785 {-# INLINE toJSON #-}
@@ -2260,13 +1788,6 @@ instance ToJSON (Proxy a) where
22601788 {-# INLINE toEncoding #-}
22611789
22621790
2263−instance ToJSON2 Tagged where
2264− liftToJSON2 _ _ t _ (Tagged x) = t x
2265− {-# INLINE liftToJSON2 #-}
2266−
2267− liftToEncoding2 _ _ t _ (Tagged x) = t x
2268− {-# INLINE liftToEncoding2 #-}
2269−
22701791instance ToJSON1 (Tagged a) where
22711792 liftToJSON t _ (Tagged x) = t x
22721793 {-# INLINE liftToJSON #-}
@@ -2281,6 +1802,7 @@ instance ToJSON b => ToJSON (Tagged a b) where
22811802 toEncoding = toEncoding1
22821803 {-# INLINE toEncoding #-}
22831804
1805+
22841806instance ToJSONKey b => ToJSONKey (Tagged a b) where
22851807 toJSONKey = contramapToJSONKeyFunction unTagged toJSONKey
22861808 toJSONKeyList = contramapToJSONKeyFunction (fmap unTagged) toJSONKeyList
@@ -2289,22 +1811,34 @@ instance ToJSONKey b => ToJSONKey (Tagged a b) where
22891811-- Instances for converting t map keys
22901812-------------------------------------------------------------------------------
22911813
1814+-- | TODO: Move ToJSONKEyFunction to .Types(.Internal),
1815+-- export and document this function from there
1816+toJSONKeyTextEnc :: (a -> Encoding) -> ToJSONKeyFunction a
1817+toJSONKeyTextEnc e = ToJSONKeyText
1818+ -- TODO: dropAround is also used in stringEncoding, which is unfortunate atm
1819+ ( T.dropAround (== '"') . T.decodeLatin1 . L.toStrict . B.toLazyByteString . fromEncoding . e
1820+ , e
1821+ )
1822+
22921823instance (ToJSON a, ToJSON b) => ToJSONKey (a,b)
22931824instance (ToJSON a, ToJSON b, ToJSON c) => ToJSONKey (a,b,c)
22941825instance (ToJSON a, ToJSON b, ToJSON c, ToJSON d) => ToJSONKey (a,b,c,d)
22951826
22961827instance ToJSONKey Char where
2297− toJSONKey = ToJSONKeyText T.singleton (E.string . (:[]))
2298− toJSONKeyList = toJSONKeyText T.pack
1828+ toJSONKey = ToJSONKeyText (T.singleton, toEncoding)
1829+ toJSONKeyList = ToJSONKeyText (T.pack, toEncoding . T.pack)
22991830
23001831instance (ToJSONKey a, ToJSON a) => ToJSONKey [a] where
23011832 toJSONKey = toJSONKeyList
23021833
1834+instance (ToJSONKey a, ToJSON a) => ToJSONKey (Identity a) where
1835+ toJSONKey = contramapToJSONKeyFunction runIdentity toJSONKey
1836+
23031837-------------------------------------------------------------------------------
2304−-- Tuple instances
1838+-- Tuple instances, see tuple-instances-to.hs
23051839-------------------------------------------------------------------------------
23061840
2307−instance ToJSON2 (,) where
1841+instance ToJSON2 ((,) ) where
23081842 liftToJSON2 toA _ toB _ (a, b) = Array $ V.create $ do
23091843 mv <- VM.unsafeNew 2
23101844 VM.unsafeWrite mv 0 (toA a)
@@ -2312,7 +1846,9 @@ instance ToJSON2 (,) where
23121846 return mv
23131847 {-# INLINE liftToJSON2 #-}
23141848
2315− liftToEncoding2 toA _ toB _ (a, b) = E.list id [toA a, toB b]
1849+ liftToEncoding2 toA _ toB _ (a, b) = tuple $
1850+ toA a >*<
1851+ toB b
23161852 {-# INLINE liftToEncoding2 #-}
23171853
23181854instance (ToJSON a) => ToJSON1 ((,) a) where
@@ -2336,11 +1872,10 @@ instance (ToJSON a) => ToJSON2 ((,,) a) where
23361872 return mv
23371873 {-# INLINE liftToJSON2 #-}
23381874
2339− liftToEncoding2 toB _ toC _ (a, b, c) = E.list id
2340− [ toEncoding a
2341− , toB b
2342− , toC c
2343− ]
1875+ liftToEncoding2 toB _ toC _ (a, b, c) = tuple $
1876+ toEncoding a >*<
1877+ toB b >*<
1878+ toC c
23441879 {-# INLINE liftToEncoding2 #-}
23451880
23461881instance (ToJSON a, ToJSON b) => ToJSON1 ((,,) a b) where
@@ -2365,12 +1900,11 @@ instance (ToJSON a, ToJSON b) => ToJSON2 ((,,,) a b) where
23651900 return mv
23661901 {-# INLINE liftToJSON2 #-}
23671902
2368− liftToEncoding2 toC _ toD _ (a, b, c, d) = E.list id
2369− [ toEncoding a
2370− , toEncoding b
2371− , toC c
2372− , toD d
2373− ]
1903+ liftToEncoding2 toC _ toD _ (a, b, c, d) = tuple $
1904+ toEncoding a >*<
1905+ toEncoding b >*<
1906+ toC c >*<
1907+ toD d
23741908 {-# INLINE liftToEncoding2 #-}
23751909
23761910instance (ToJSON a, ToJSON b, ToJSON c) => ToJSON1 ((,,,) a b c) where
@@ -2396,13 +1930,12 @@ instance (ToJSON a, ToJSON b, ToJSON c) => ToJSON2 ((,,,,) a b c) where
23961930 return mv
23971931 {-# INLINE liftToJSON2 #-}
23981932
2399− liftToEncoding2 toD _ toE _ (a, b, c, d, e) = E.list id
2400− [ toEncoding a
2401− , toEncoding b
2402− , toEncoding c
2403− , toD d
2404− , toE e
2405− ]
1933+ liftToEncoding2 toD _ toE _ (a, b, c, d, e) = tuple $
1934+ toEncoding a >*<
1935+ toEncoding b >*<
1936+ toEncoding c >*<
1937+ toD d >*<
1938+ toE e
24061939 {-# INLINE liftToEncoding2 #-}
24071940
24081941instance (ToJSON a, ToJSON b, ToJSON c, ToJSON d) => ToJSON1 ((,,,,) a b c d) where
@@ -2429,14 +1962,13 @@ instance (ToJSON a, ToJSON b, ToJSON c, ToJSON d) => ToJSON2 ((,,,,,) a b c d) w
24291962 return mv
24301963 {-# INLINE liftToJSON2 #-}
24311964
2432− liftToEncoding2 toE _ toF _ (a, b, c, d, e, f) = E.list id
2433− [ toEncoding a
2434− , toEncoding b
2435− , toEncoding c
2436− , toEncoding d
2437− , toE e
2438− , toF f
2439− ]
1965+ liftToEncoding2 toE _ toF _ (a, b, c, d, e, f) = tuple $
1966+ toEncoding a >*<
1967+ toEncoding b >*<
1968+ toEncoding c >*<
1969+ toEncoding d >*<
1970+ toE e >*<
1971+ toF f
24401972 {-# INLINE liftToEncoding2 #-}
24411973
24421974instance (ToJSON a, ToJSON b, ToJSON c, ToJSON d, ToJSON e) => ToJSON1 ((,,,,,) a b c d e) where
@@ -2464,15 +1996,14 @@ instance (ToJSON a, ToJSON b, ToJSON c, ToJSON d, ToJSON e) => ToJSON2 ((,,,,,,)
24641996 return mv
24651997 {-# INLINE liftToJSON2 #-}
24661998
2467− liftToEncoding2 toF _ toG _ (a, b, c, d, e, f, g) = E.list id
2468− [ toEncoding a
2469− , toEncoding b
2470− , toEncoding c
2471− , toEncoding d
2472− , toEncoding e
2473− , toF f
2474− , toG g
2475− ]
1999+ liftToEncoding2 toF _ toG _ (a, b, c, d, e, f, g) = tuple $
2000+ toEncoding a >*<
2001+ toEncoding b >*<
2002+ toEncoding c >*<
2003+ toEncoding d >*<
2004+ toEncoding e >*<
2005+ toF f >*<
2006+ toG g
24762007 {-# INLINE liftToEncoding2 #-}
24772008
24782009instance (ToJSON a, ToJSON b, ToJSON c, ToJSON d, ToJSON e, ToJSON f) => ToJSON1 ((,,,,,,) a b c d e f) where
@@ -2501,16 +2032,15 @@ instance (ToJSON a, ToJSON b, ToJSON c, ToJSON d, ToJSON e, ToJSON f) => ToJSON2
25012032 return mv
25022033 {-# INLINE liftToJSON2 #-}
25032034
2504− liftToEncoding2 toG _ toH _ (a, b, c, d, e, f, g, h) = E.list id
2505− [ toEncoding a
2506− , toEncoding b
2507− , toEncoding c
2508− , toEncoding d
2509− , toEncoding e
2510− , toEncoding f
2511− , toG g
2512− , toH h
2513− ]
2035+ liftToEncoding2 toG _ toH _ (a, b, c, d, e, f, g, h) = tuple $
2036+ toEncoding a >*<
2037+ toEncoding b >*<
2038+ toEncoding c >*<
2039+ toEncoding d >*<
2040+ toEncoding e >*<
2041+ toEncoding f >*<
2042+ toG g >*<
2043+ toH h
25142044 {-# INLINE liftToEncoding2 #-}
25152045
25162046instance (ToJSON a, ToJSON b, ToJSON c, ToJSON d, ToJSON e, ToJSON f, ToJSON g) => ToJSON1 ((,,,,,,,) a b c d e f g) where
@@ -2540,17 +2070,16 @@ instance (ToJSON a, ToJSON b, ToJSON c, ToJSON d, ToJSON e, ToJSON f, ToJSON g)
25402070 return mv
25412071 {-# INLINE liftToJSON2 #-}
25422072
2543− liftToEncoding2 toH _ toI _ (a, b, c, d, e, f, g, h, i) = E.list id
2544− [ toEncoding a
2545− , toEncoding b
2546− , toEncoding c
2547− , toEncoding d
2548− , toEncoding e
2549− , toEncoding f
2550− , toEncoding g
2551− , toH h
2552− , toI i
2553− ]
2073+ liftToEncoding2 toH _ toI _ (a, b, c, d, e, f, g, h, i) = tuple $
2074+ toEncoding a >*<
2075+ toEncoding b >*<
2076+ toEncoding c >*<
2077+ toEncoding d >*<
2078+ toEncoding e >*<
2079+ toEncoding f >*<
2080+ toEncoding g >*<
2081+ toH h >*<
2082+ toI i
25542083 {-# INLINE liftToEncoding2 #-}
25552084
25562085instance (ToJSON a, ToJSON b, ToJSON c, ToJSON d, ToJSON e, ToJSON f, ToJSON g, ToJSON h) => ToJSON1 ((,,,,,,,,) a b c d e f g h) where
@@ -2581,18 +2110,17 @@ instance (ToJSON a, ToJSON b, ToJSON c, ToJSON d, ToJSON e, ToJSON f, ToJSON g,
25812110 return mv
25822111 {-# INLINE liftToJSON2 #-}
25832112
2584− liftToEncoding2 toI _ toJ _ (a, b, c, d, e, f, g, h, i, j) = E.list id
2585− [ toEncoding a
2586− , toEncoding b
2587− , toEncoding c
2588− , toEncoding d
2589− , toEncoding e
2590− , toEncoding f
2591− , toEncoding g
2592− , toEncoding h
2593− , toI i
2594− , toJ j
2595− ]
2113+ liftToEncoding2 toI _ toJ _ (a, b, c, d, e, f, g, h, i, j) = tuple $
2114+ toEncoding a >*<
2115+ toEncoding b >*<
2116+ toEncoding c >*<
2117+ toEncoding d >*<
2118+ toEncoding e >*<
2119+ toEncoding f >*<
2120+ toEncoding g >*<
2121+ toEncoding h >*<
2122+ toI i >*<
2123+ toJ j
25962124 {-# INLINE liftToEncoding2 #-}
25972125
25982126instance (ToJSON a, ToJSON b, ToJSON c, ToJSON d, ToJSON e, ToJSON f, ToJSON g, ToJSON h, ToJSON i) => ToJSON1 ((,,,,,,,,,) a b c d e f g h i) where
@@ -2624,19 +2152,18 @@ instance (ToJSON a, ToJSON b, ToJSON c, ToJSON d, ToJSON e, ToJSON f, ToJSON g,
26242152 return mv
26252153 {-# INLINE liftToJSON2 #-}
26262154
2627− liftToEncoding2 toJ _ toK _ (a, b, c, d, e, f, g, h, i, j, k) = E.list id
2628− [ toEncoding a
2629− , toEncoding b
2630− , toEncoding c
2631− , toEncoding d
2632− , toEncoding e
2633− , toEncoding f
2634− , toEncoding g
2635− , toEncoding h
2636− , toEncoding i
2637− , toJ j
2638− , toK k
2639− ]
2155+ liftToEncoding2 toJ _ toK _ (a, b, c, d, e, f, g, h, i, j, k) = tuple $
2156+ toEncoding a >*<
2157+ toEncoding b >*<
2158+ toEncoding c >*<
2159+ toEncoding d >*<
2160+ toEncoding e >*<
2161+ toEncoding f >*<
2162+ toEncoding g >*<
2163+ toEncoding h >*<
2164+ toEncoding i >*<
2165+ toJ j >*<
2166+ toK k
26402167 {-# INLINE liftToEncoding2 #-}
26412168
26422169instance (ToJSON a, ToJSON b, ToJSON c, ToJSON d, ToJSON e, ToJSON f, ToJSON g, ToJSON h, ToJSON i, ToJSON j) => ToJSON1 ((,,,,,,,,,,) a b c d e f g h i j) where
@@ -2669,20 +2196,19 @@ instance (ToJSON a, ToJSON b, ToJSON c, ToJSON d, ToJSON e, ToJSON f, ToJSON g,
26692196 return mv
26702197 {-# INLINE liftToJSON2 #-}
26712198
2672− liftToEncoding2 toK _ toL _ (a, b, c, d, e, f, g, h, i, j, k, l) = E.list id
2673− [ toEncoding a
2674− , toEncoding b
2675− , toEncoding c
2676− , toEncoding d
2677− , toEncoding e
2678− , toEncoding f
2679− , toEncoding g
2680− , toEncoding h
2681− , toEncoding i
2682− , toEncoding j
2683− , toK k
2684− , toL l
2685− ]
2199+ liftToEncoding2 toK _ toL _ (a, b, c, d, e, f, g, h, i, j, k, l) = tuple $
2200+ toEncoding a >*<
2201+ toEncoding b >*<
2202+ toEncoding c >*<
2203+ toEncoding d >*<
2204+ toEncoding e >*<
2205+ toEncoding f >*<
2206+ toEncoding g >*<
2207+ toEncoding h >*<
2208+ toEncoding i >*<
2209+ toEncoding j >*<
2210+ toK k >*<
2211+ toL l
26862212 {-# INLINE liftToEncoding2 #-}
26872213
26882214instance (ToJSON a, ToJSON b, ToJSON c, ToJSON d, ToJSON e, ToJSON f, ToJSON g, ToJSON h, ToJSON i, ToJSON j, ToJSON k) => ToJSON1 ((,,,,,,,,,,,) a b c d e f g h i j k) where
@@ -2716,21 +2242,20 @@ instance (ToJSON a, ToJSON b, ToJSON c, ToJSON d, ToJSON e, ToJSON f, ToJSON g,
27162242 return mv
27172243 {-# INLINE liftToJSON2 #-}
27182244
2719− liftToEncoding2 toL _ toM _ (a, b, c, d, e, f, g, h, i, j, k, l, m) = E.list id
2720− [ toEncoding a
2721− , toEncoding b
2722− , toEncoding c
2723− , toEncoding d
2724− , toEncoding e
2725− , toEncoding f
2726− , toEncoding g
2727− , toEncoding h
2728− , toEncoding i
2729− , toEncoding j
2730− , toEncoding k
2731− , toL l
2732− , toM m
2733− ]
2245+ liftToEncoding2 toL _ toM _ (a, b, c, d, e, f, g, h, i, j, k, l, m) = tuple $
2246+ toEncoding a >*<
2247+ toEncoding b >*<
2248+ toEncoding c >*<
2249+ toEncoding d >*<
2250+ toEncoding e >*<
2251+ toEncoding f >*<
2252+ toEncoding g >*<
2253+ toEncoding h >*<
2254+ toEncoding i >*<
2255+ toEncoding j >*<
2256+ toEncoding k >*<
2257+ toL l >*<
2258+ toM m
27342259 {-# INLINE liftToEncoding2 #-}
27352260
27362261instance (ToJSON a, ToJSON b, ToJSON c, ToJSON d, ToJSON e, ToJSON f, ToJSON g, ToJSON h, ToJSON i, ToJSON j, ToJSON k, ToJSON l) => ToJSON1 ((,,,,,,,,,,,,) a b c d e f g h i j k l) where
@@ -2765,22 +2290,21 @@ instance (ToJSON a, ToJSON b, ToJSON c, ToJSON d, ToJSON e, ToJSON f, ToJSON g,
27652290 return mv
27662291 {-# INLINE liftToJSON2 #-}
27672292
2768− liftToEncoding2 toM _ toN _ (a, b, c, d, e, f, g, h, i, j, k, l, m, n) = E.list id
2769− [ toEncoding a
2770− , toEncoding b
2771− , toEncoding c
2772− , toEncoding d
2773− , toEncoding e
2774− , toEncoding f
2775− , toEncoding g
2776− , toEncoding h
2777− , toEncoding i
2778− , toEncoding j
2779− , toEncoding k
2780− , toEncoding l
2781− , toM m
2782− , toN n
2783− ]
2293+ liftToEncoding2 toM _ toN _ (a, b, c, d, e, f, g, h, i, j, k, l, m, n) = tuple $
2294+ toEncoding a >*<
2295+ toEncoding b >*<
2296+ toEncoding c >*<
2297+ toEncoding d >*<
2298+ toEncoding e >*<
2299+ toEncoding f >*<
2300+ toEncoding g >*<
2301+ toEncoding h >*<
2302+ toEncoding i >*<
2303+ toEncoding j >*<
2304+ toEncoding k >*<
2305+ toEncoding l >*<
2306+ toM m >*<
2307+ toN n
27842308 {-# INLINE liftToEncoding2 #-}
27852309
27862310instance (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) => ToJSON1 ((,,,,,,,,,,,,,) a b c d e f g h i j k l m) where
@@ -2816,23 +2340,22 @@ instance (ToJSON a, ToJSON b, ToJSON c, ToJSON d, ToJSON e, ToJSON f, ToJSON g,
28162340 return mv
28172341 {-# INLINE liftToJSON2 #-}
28182342
2819− liftToEncoding2 toN _ toO _ (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o) = E.list id
2820− [ toEncoding a
2821− , toEncoding b
2822− , toEncoding c
2823− , toEncoding d
2824− , toEncoding e
2825− , toEncoding f
2826− , toEncoding g
2827− , toEncoding h
2828− , toEncoding i
2829− , toEncoding j
2830− , toEncoding k
2831− , toEncoding l
2832− , toEncoding m
2833− , toN n
2834− , toO o
2835− ]
2343+ liftToEncoding2 toN _ toO _ (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o) = tuple $
2344+ toEncoding a >*<
2345+ toEncoding b >*<
2346+ toEncoding c >*<
2347+ toEncoding d >*<
2348+ toEncoding e >*<
2349+ toEncoding f >*<
2350+ toEncoding g >*<
2351+ toEncoding h >*<
2352+ toEncoding i >*<
2353+ toEncoding j >*<
2354+ toEncoding k >*<
2355+ toEncoding l >*<
2356+ toEncoding m >*<
2357+ toN n >*<
2358+ toO o
28362359 {-# INLINE liftToEncoding2 #-}
28372360
28382361instance (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) => ToJSON1 ((,,,,,,,,,,,,,,) a b c d e f g h i j k l m n) where
@@ -2846,27 +2369,3 @@ instance (ToJSON a, ToJSON b, ToJSON c, ToJSON d, ToJSON e, ToJSON f, ToJSON g,
28462369 {-# INLINE toJSON #-}
28472370 toEncoding = toEncoding2
28482371 {-# INLINE toEncoding #-}
2849−
2850−--------------------------------------------------------------------------------
2851−
2852−-- | Wrap a list of pairs as an object.
2853−class Monoid pairs => FromPairs enc pairs | enc -> pairs where
2854− fromPairs :: pairs -> enc
2855−
2856−instance (a ~ Value) => FromPairs (Encoding' a) Series where
2857− fromPairs = E.pairs
2858−
2859−instance FromPairs Value (DList Pair) where
2860− fromPairs = object . toList
2861−
2862−-- | Like 'KeyValue' but the value is already converted to JSON
2863−-- ('Value' or 'Encoding'), and the result actually represents lists of pairs
2864−-- so it can be readily concatenated.
2865−class Monoid kv => KeyValuePair v kv where
2866− pair :: String -> v -> kv
2867−
2868−instance (v ~ Value) => KeyValuePair v (DList Pair) where
2869− pair k v = DList.singleton (pack k .= v)
2870−
2871−instance (e ~ Encoding) => KeyValuePair e Series where
2872− pair = E.pairStr