master..43d2526 · typeable/schematic

git.iko.soy/typeable/schematic

11 files changed+113−271

unifiedsplit

ChangeLog.md−11 schematic.cabal+4−8 src/Data/Schematic/JsonSchema.hs+9−21 src/Data/Schematic/Path.hs+20−17 src/Data/Schematic/Schema.hs−36 src/Data/Schematic/Schema.hs-boot−8 src/Data/Schematic/Validation.hs+71−100 stack-13.21.yaml−7 stack-13.7.yaml+5 stack.yaml+4−5 test/JsonSchemaSpec.hs−58

ChangeLog.md−11

@@ -1,16 +1,5 @@

11# Revision history for schematic

3−## 0.6.0.0 -- 2021-01-15

4−

5−Added compatability with aeson-1.4.3.0. Since version 1.4.3 the module `Data.Aeson` started exporting `JSONPath`, which was conflicting with our own `JSONPath`. Furthermore, started using `JSONPathElement` from `aeson` instead of `DemotedPathSegment`.

6−

7−## 0.5.1.0 -- 2021-01-15

8−

9−Fix the generation of json schema for numbers.

10−Add array constraints.

11−Fix the generation of text and number constraints.

12−Remove jsonpath from the error message.

13−

143## 0.5.0.0 -- 2019-02-20

154

165GHC 8.6, json generation by schema definition, validation bug fixes, better

schematic.cabal+4−8

@@ -1,5 +1,5 @@

11name: schematic

2−version: 0.6.0.0

2+version: 0.5.0.0

33synopsis: JSON-biased spec and validation tool

44description: JSON-biased spec and validation tool. Makes possible to have a schema as a haskell type and derive json instances, validation actions, JSON generation for property-test generically. Built-in lens support.

55license: BSD3

@@ -10,7 +10,7 @@ homepage: http://github.com/typeable/schematic

1010Bug-reports: http://github.com/typeable/schematic/issues/

1111category: Data

1212build-type: Simple

13−extra-source-files: ChangeLog.md, README.md

13+extra-source-files: ChangeLog.md

1414cabal-version: >=1.10

1515

1616library

@@ -65,9 +65,9 @@ library

6565 , TypeOperators

6666 , TypeSynonymInstances

6767 , UndecidableInstances

68− build-depends: base >=4.11 && <5

68+ build-depends: base >=4.11 && <4.13

6969 , bytestring

70− , aeson >= 1.4.3.0 && < 1.6

70+ , aeson >= 1

7171 , containers

7272 , hjsonschema

7373 , mtl

@@ -118,7 +118,3 @@ test-suite spec

118118 , HelpersSpec

119119 , LensSpec

120120 , JsonSchemaSpec

121−

122−source-repository head

123− type: git

124− location: https://github.com/typeable/schematic

src/Data/Schematic/JsonSchema.hs+9−21

@@ -30,13 +30,13 @@ textConstraint :: DemotedTextConstraint -> State D4.Schema ()

3030textConstraint (DTEq n) = modify $ \s -> s

3131 { _schemaMinLength = pure $ fromIntegral n

3232 , _schemaMaxLength = pure $ fromIntegral n }

33+textConstraint (DTLt n) = modify $ \s -> s

34+ { _schemaMaxLength = pure . fromIntegral $ n + 1 }

3335textConstraint (DTLe n) = modify $ \s -> s

3436 { _schemaMaxLength = pure . fromIntegral $ n }

35−textConstraint (DTLt n) =

37+textConstraint (DTGt n) =

3638 let n' = if n == 0 then 0 else n - 1

37− in modify $ \s -> s { _schemaMaxLength = pure . fromIntegral $ n' }

38−textConstraint (DTGt n) = modify $ \s -> s

39− { _schemaMinLength = pure . fromIntegral $ n + 1 }

39+ in modify $ \s -> s { _schemaMinLength = pure . fromIntegral $ n' }

4040textConstraint (DTGe n) = modify $ \s -> s

4141 { _schemaMinLength = pure . fromIntegral $ n }

4242textConstraint (DTRegex r) = modify $ \s -> s { _schemaPattern = pure r }

@@ -48,30 +48,18 @@ numberConstraint :: DemotedNumberConstraint -> State D4.Schema ()

4848numberConstraint (DNLe n) = modify $ \s -> s

4949 { _schemaMaximum = pure . fromIntegral $ n }

5050numberConstraint (DNLt n) = modify $ \s -> s

51− { _schemaMaximum = pure . fromIntegral $ n

52− , _schemaExclusiveMaximum = pure True }

51+ { _schemaMaximum = pure . fromIntegral $ n + 1 }

5352numberConstraint (DNGt n) = modify $ \s -> s

54− { _schemaMinimum = pure . fromIntegral $ n

55− , _schemaExclusiveMinimum = pure True }

56−numberConstraint (DNGe n) = modify $ \s -> s

5753 { _schemaMinimum = pure . fromIntegral $ n }

54+numberConstraint (DNGe n) =

55+ let n' = if n == 0 then 0 else n - 1

56+ in modify $ \s -> s { _schemaMinimum = pure . fromIntegral $ n' }

5857numberConstraint (DNEq n) = modify $ \s -> s

5958 { _schemaMinimum = pure $ fromIntegral n

6059 , _schemaMaximum = pure $ fromIntegral n }

6160

6261arrayConstraint :: DemotedArrayConstraint -> State D4.Schema ()

63−arrayConstraint (DALe n) = modify $ \s -> s

64− { _schemaMaxItems = pure . fromIntegral $ n }

65−arrayConstraint (DALt n) =

66− let n' = if n == 0 then 0 else n - 1

67− in modify $ \s -> s { _schemaMaxItems = pure . fromIntegral $ n' }

68−arrayConstraint (DAGt n) = modify $ \s -> s

69− { _schemaMinItems = pure . fromIntegral $ n + 1 }

70−arrayConstraint (DAGe n) = modify $ \s -> s

71− { _schemaMinItems = pure . fromIntegral $ n }

72−arrayConstraint (DAEq n) = modify $ \s -> s

73− { _schemaMinItems = pure $ fromIntegral n

74− , _schemaMaxItems = pure $ fromIntegral n }

62+arrayConstraint (DAEq _) = pure ()

7563

7664toJsonSchema

7765 :: forall proxy schema

src/Data/Schematic/Path.hs+20−17

@@ -4,33 +4,36 @@ import Data.Foldable as F

44import Data.Singletons.Prelude

55import Data.Singletons.TypeLits

66import Data.Text as T

7−import Data.Aeson.Internal

10−newtype JSONPathText = JSONPathText Text

11− deriving (Show)

12−

13−data PathSegment = PathKey Symbol | PathIx Nat

9+data PathSegment = Key Symbol | Ix Nat

1410

1511data instance Sing (jp :: PathSegment) where

16− SKey :: (SingI k) => Sing (k :: Symbol) -> Sing ('PathKey k)

17− SIx :: (SingI n) => Sing (n :: Nat) -> Sing ('PathIx n)

12+ SKey :: (SingI k) => Sing (k :: Symbol) -> Sing ('Key k)

13+ SIx :: (SingI n) => Sing (n :: Nat) -> Sing ('Ix n)

14+

15+data DemotedPathSegment = DKey Text | DIx Integer

16+ deriving (Show)

17+

18+-- | Textual representation of json path.

19+newtype JSONPath = JSONPath Text

20+ deriving (Show)

1821

19−demotePath :: Sing (ps :: [PathSegment]) -> JSONPath

22+demotePath :: Sing (ps :: [PathSegment]) -> [DemotedPathSegment]

2023demotePath = go []

2124 where

22− go :: JSONPath -> Sing (ps :: [PathSegment]) -> JSONPath

25+ go :: [DemotedPathSegment] -> Sing (ps :: [PathSegment]) -> [DemotedPathSegment]

2326 go acc SNil = acc

2427 go acc (SCons p ps) = go (acc ++ [demotePathSeg p]) ps

25− demotePathSeg :: Sing (ps :: PathSegment) -> JSONPathElement

26− demotePathSeg (SKey s) = Key $ T.pack $ withKnownSymbol s $ symbolVal s

27− demotePathSeg (SIx n) = Index $ withKnownNat n $ fromIntegral $ natVal n

28+ demotePathSeg :: Sing (ps :: PathSegment) -> DemotedPathSegment

29+ demotePathSeg (SKey s) = DKey $ T.pack $ withKnownSymbol s $ symbolVal s

30+ demotePathSeg (SIx n) = DIx $ withKnownNat n $ fromIntegral $ natVal n

2831

29−demotedPathToText :: JSONPath -> JSONPathText

30−demotedPathToText = JSONPathText . F.foldl' renderPathSegment ""

32+demotedPathToText :: [DemotedPathSegment] -> JSONPath

33+demotedPathToText = JSONPath . F.foldl' renderPathSegment ""

3134 where

32− renderPathSegment acc (Key t) = acc <> "." <> t

33− renderPathSegment acc (Index n) = acc <> "[" <> T.pack (show n) <> "]"

35+ renderPathSegment acc (DKey t) = acc <> "." <> t

36+ renderPathSegment acc (DIx n) = acc <> "[" <> T.pack (show n) <> "]"

3437

35−pathToText :: Sing (ps :: [PathSegment]) -> JSONPathText

38+pathToText :: Sing (ps :: [PathSegment]) -> JSONPath

3639pathToText = demotedPathToText . demotePath

src/Data/Schematic/Schema.hs−36

@@ -180,63 +180,27 @@ instance SingKind NumberConstraint where

180180

181181data ArrayConstraint

182182 = AEq Nat

183− | AGt Nat

184− | AGe Nat

185− | ALt Nat

186− | ALe Nat

187183 deriving (Generic)

188184

189185data DemotedArrayConstraint

190186 = DAEq Integer

191− | DAGt Integer

192− | DAGe Integer

193− | DALt Integer

194− | DALe Integer

195187 deriving (Generic, Eq, Show)

196188

197189data instance Sing (ac :: ArrayConstraint) where

198190 SAEq :: Sing n -> Sing ('AEq n)

199− SAGt :: Sing n -> Sing ('AGt n)

200− SAGe :: Sing n -> Sing ('AGe n)

201− SALt :: Sing n -> Sing ('ALt n)

202− SALe :: Sing n -> Sing ('ALe n)

203191

204192instance KnownNat n => SingI ('AEq n) where sing = SAEq sing

205−instance KnownNat n => SingI ('AGt n) where sing = SAGt sing

206−instance KnownNat n => SingI ('AGe n) where sing = SAGe sing

207−instance KnownNat n => SingI ('ALt n) where sing = SALt sing

208−instance KnownNat n => SingI ('ALe n) where sing = SALe sing

209193

210194instance Eq (Sing ('AEq n)) where _ == _ = True

211−instance Eq (Sing ('AGt n)) where _ == _ = True

212−instance Eq (Sing ('AGe n)) where _ == _ = True

213−instance Eq (Sing ('ALt n)) where _ == _ = True

214−instance Eq (Sing ('ALe n)) where _ == _ = True

215195

216196instance SingKind ArrayConstraint where

217197 type Demote ArrayConstraint = DemotedArrayConstraint

218198 fromSing = \case

219199 SAEq n -> withKnownNat n (DAEq . fromIntegral $ natVal n)

220− SAGt n -> withKnownNat n (DAGt . fromIntegral $ natVal n)

221− SAGe n -> withKnownNat n (DAGe . fromIntegral $ natVal n)

222− SALt n -> withKnownNat n (DALt . fromIntegral $ natVal n)

223− SALe n -> withKnownNat n (DALe . fromIntegral $ natVal n)

224200 toSing = \case

225201 DAEq n -> case someNatVal n of

226202 Just (SomeNat (_ :: Proxy n)) -> SomeSing (SAEq (SNat :: Sing n))

227203 Nothing -> error "Negative singleton nat"

228− DAGt n -> case someNatVal n of

229− Just (SomeNat (_ :: Proxy n)) -> SomeSing (SAGt (SNat :: Sing n))

230− Nothing -> error "Negative singleton nat"

231− DAGe n -> case someNatVal n of

232− Just (SomeNat (_ :: Proxy n)) -> SomeSing (SAGe (SNat :: Sing n))

233− Nothing -> error "Negative singleton nat"

234− DALt n -> case someNatVal n of

235− Just (SomeNat (_ :: Proxy n)) -> SomeSing (SALt (SNat :: Sing n))

236− Nothing -> error "Negative singleton nat"

237− DALe n -> case someNatVal n of

238− Just (SomeNat (_ :: Proxy n)) -> SomeSing (SALe (SNat :: Sing n))

239− Nothing -> error "Negative singleton nat"

240204

241205data Schema

242206 = SchemaText [TextConstraint]

src/Data/Schematic/Schema.hs-boot−8

@@ -46,17 +46,9 @@ data DemotedNumberConstraint

4646

4747data ArrayConstraint

4848 = AEq Nat

49− | AGt Nat

50− | AGe Nat

51− | ALt Nat

52− | ALe Nat

5349

5450data DemotedArrayConstraint

5551 = DAEq Integer

56− | DAGt Integer

57− | DAGe Integer

58− | DALt Integer

59− | DALe Integer

6052

6153data Schema

6254 = SchemaText [TextConstraint]

src/Data/Schematic/Validation.hs+71−100

@@ -1,20 +1,24 @@

1+{-# LANGUAGE AllowAmbiguousTypes #-}

13module Data.Schematic.Validation where

5+import Control.Applicative

36import Control.Monad

47import Control.Monad.Validation

58import Data.Aeson

6−import Data.Aeson.Internal

79import Data.Aeson.Types

10+import Data.Coerce

811import Data.Foldable

912import Data.Functor.Identity

1013import Data.Monoid

1114import Data.Schematic.Path

1215import Data.Schematic.Schema

1316import Data.Scientific

14−import Data.Singletons.Prelude

17+import Data.Singletons.Prelude hiding (Const)

1518import Data.Singletons.TypeLits

1619import Data.Text as T

1720import Data.Traversable

21+import Data.Type.Equality

1822import Data.Union

1923import Data.Vector as V

2024import Data.Vinyl

@@ -50,51 +54,51 @@ isValidationError (ValidationError _) = True

5054isValidationError _ = False

5155

5256validateTextConstraint

53− :: JSONPathText

57+ :: JSONPath

5458 -> Text

5559 -> Sing (tcs :: TextConstraint)

5660 -> Validation ()

57−validateTextConstraint (JSONPathText path) t = \case

61+validateTextConstraint (JSONPath path) t = \case

5862 STEq n -> do

5963 let

6064 nlen = withKnownNat n $ natVal n

6165 predicate = nlen == (fromIntegral $ T.length t)

62− errMsg = "length should be == " <> T.pack (show nlen)

66+ errMsg = "length of " <> path <> " should be == " <> T.pack (show nlen)

6367 warn = vWarning $ mmSingleton path (pure errMsg)

6468 unless predicate warn

6569 STLt n -> do

6670 let

6771 nlen = withKnownNat n $ natVal n

6872 predicate = nlen > (fromIntegral $ T.length t)

69− errMsg = "length should be < " <> T.pack (show nlen)

73+ errMsg = "length of " <> path <> " should be < " <> T.pack (show nlen)

7074 warn = vWarning $ mmSingleton path (pure errMsg)

7175 unless predicate warn

7276 STLe n -> do

7377 let

7478 nlen = withKnownNat n $ natVal n

7579 predicate = nlen >= (fromIntegral $ T.length t)

76− errMsg = "length should be <= " <> T.pack (show nlen)

80+ errMsg = "length of " <> path <> " should be <= " <> T.pack (show nlen)

7781 warn = vWarning $ mmSingleton path (pure errMsg)

7882 unless predicate warn

7983 STGt n -> do

8084 let

8185 nlen = withKnownNat n $ natVal n

8286 predicate = nlen < (fromIntegral $ T.length t)

83− errMsg = "length should be > " <> T.pack (show nlen)

87+ errMsg = "length of " <> path <> " should be > " <> T.pack (show nlen)

8488 warn = vWarning $ mmSingleton path (pure errMsg)

8589 unless predicate warn

8690 STGe n -> do

8791 let

8892 nlen = withKnownNat n $ natVal n

8993 predicate = nlen <= (fromIntegral $ T.length t)

90− errMsg = "length should be >= " <> T.pack (show nlen)

94+ errMsg = "length of " <> path <> " should be >= " <> T.pack (show nlen)

9195 warn = vWarning $ mmSingleton path (pure errMsg)

9296 unless predicate warn

9397 STRegex r -> do

9498 let

9599 regex = withKnownSymbol r $ fromSing r

96100 predicate = matchTest (makeRegex (T.unpack regex) :: Regex) (T.unpack t)

97− errMsg = "must match " <> regex

101+ errMsg = path <> " must match " <> regex

98102 warn = vWarning $ mmSingleton path (pure errMsg)

99103 unless predicate warn

100104 STEnum ss -> do

@@ -102,101 +106,76 @@ validateTextConstraint (JSONPathText path) t = \case

102106 matching :: Sing (s :: [Symbol]) -> Bool

103107 matching SNil = False

104108 matching (SCons s@SSym fs) = T.pack (symbolVal s) == t || matching fs

105− errMsg = "must be one of " <> T.pack (show (fromSing ss))

109+ errMsg = path <> " must be one of " <> T.pack (show (fromSing ss))

106110 warn = vWarning $ mmSingleton path (pure errMsg)

107111 unless (matching ss) warn

108112

109113validateNumberConstraint

110− :: JSONPathText

114+ :: JSONPath

111115 -> Scientific

112116 -> Sing (tcs :: NumberConstraint)

113117 -> Validation ()

114−validateNumberConstraint (JSONPathText path) num = \case

118+validateNumberConstraint (JSONPath path) num = \case

115119 SNEq n -> do

116120 let

117121 nlen = withKnownNat n $ natVal n

118122 predicate = fromIntegral nlen == num

119− errMsg = "should be == " <> T.pack (show nlen)

123+ errMsg = path <> " should be == " <> T.pack (show nlen)

120124 warn = vWarning $ mmSingleton path (pure errMsg)

121125 unless predicate warn

122126 SNGt n -> do

123127 let

124128 nlen = withKnownNat n $ natVal n

125129 predicate = num > fromIntegral nlen

126− errMsg = "should be > " <> T.pack (show nlen)

130+ errMsg = path <> " should be > " <> T.pack (show nlen)

127131 warn = vWarning $ mmSingleton path (pure errMsg)

128132 unless predicate warn

129133 SNGe n -> do

130134 let

131135 nlen = withKnownNat n $ natVal n

132136 predicate = num >= fromIntegral nlen

133− errMsg = "should be >= " <> T.pack (show nlen)

137+ errMsg = path <> " should be >= " <> T.pack (show nlen)

134138 warn = vWarning $ mmSingleton path (pure errMsg)

135139 unless predicate warn

136140 SNLt n -> do

137141 let

138142 nlen = withKnownNat n $ natVal n

139143 predicate = num < fromIntegral nlen

140− errMsg = "should be < " <> T.pack (show nlen)

144+ errMsg = path <> " should be < " <> T.pack (show nlen)

141145 warn = vWarning $ mmSingleton path (pure errMsg)

142146 unless predicate warn

143147 SNLe n -> do

144148 let

145149 nlen = withKnownNat n $ natVal n

146150 predicate = num <= fromIntegral nlen

147− errMsg = "should be <= " <> T.pack (show nlen)

151+ errMsg = path <> " should be <= " <> T.pack (show nlen)

148152 warn = vWarning $ mmSingleton path (pure errMsg)

149153 unless predicate warn

150154

151155validateArrayConstraint

152− :: JSONPathText

156+ :: JSONPath

153157 -> V.Vector a

154158 -> Sing (tcs :: ArrayConstraint)

155159 -> Validation ()

156−validateArrayConstraint (JSONPathText path) v = \case

160+validateArrayConstraint (JSONPath path) v = \case

157161 SAEq n -> do

158162 let

159163 nlen = withKnownNat n $ natVal n

160164 predicate = nlen == fromIntegral (V.length v)

161− errMsg = "length should be == " <> T.pack (show nlen)

162− warn = vWarning $ mmSingleton path (pure errMsg)

163− unless predicate warn

164− SAGt n -> do

165− let

166− nlen = withKnownNat n $ natVal n

167− predicate = fromIntegral (V.length v) > nlen

168− errMsg = "length should be > " <> T.pack (show nlen)

169− warn = vWarning $ mmSingleton path (pure errMsg)

170− unless predicate warn

171− SAGe n -> do

172− let

173− nlen = withKnownNat n $ natVal n

174− predicate = fromIntegral (V.length v) >= nlen

175− errMsg = "length should be >= " <> T.pack (show nlen)

176− warn = vWarning $ mmSingleton path (pure errMsg)

177− unless predicate warn

178− SALt n -> do

179− let

180− nlen = withKnownNat n $ natVal n

181− predicate = fromIntegral (V.length v) < nlen

182− errMsg = "length should be < " <> T.pack (show nlen)

183− warn = vWarning $ mmSingleton path (pure errMsg)

184− unless predicate warn

185− SALe n -> do

186− let

187− nlen = withKnownNat n $ natVal n

188− predicate = fromIntegral (V.length v) <= nlen

189− errMsg = "length should be <= " <> T.pack (show nlen)

165+ errMsg = "length of " <> path <> " should be == " <> T.pack (show nlen)

190166 warn = vWarning $ mmSingleton path (pure errMsg)

191167 unless predicate warn

192168

169+class Validatable schema where

170+ validateJsonRepr :: [DemotedPathSegment] -> JsonRepr schema -> Validation ()

171+

193172validateJsonRepr

194− :: Sing schema

195− -> JSONPath

173+ :: forall schema. SingI schema

174+ => [DemotedPathSegment]

196175 -> JsonRepr schema

197176 -> Validation ()

198−validateJsonRepr sschema dpath jr = case jr of

199− ReprText t -> case sschema of

177+validateJsonRepr dpath jr = withSingI (sing :: Sing schema) $ case jr of

178+ ReprText t -> case sing :: Sing schema of

200179 SSchemaText scs -> do

201180 let

202181 process :: Sing (cs :: [TextConstraint]) -> Validation ()

@@ -205,7 +184,7 @@ validateJsonRepr sschema dpath jr = case jr of

205184 validateTextConstraint (demotedPathToText dpath) t c

206185 process cs

207186 process scs

208− ReprNumber n -> case sschema of

187+ ReprNumber n -> case sing :: Sing schema of

209188 SSchemaNumber scs -> do

210189 let

211190 process :: Sing (cs :: [NumberConstraint]) -> Validation ()

@@ -216,7 +195,7 @@ validateJsonRepr sschema dpath jr = case jr of

216195 process scs

217196 ReprNull -> pure ()

218197 ReprBoolean _ -> pure ()

219− ReprArray v -> case sschema of

198+ ReprArray v -> case sing :: Sing schema of

220199 SSchemaArray acs s -> do

221200 let

222201 process :: Sing (cs :: [ArrayConstraint]) -> Validation ()

@@ -226,61 +205,53 @@ validateJsonRepr sschema dpath jr = case jr of

226205 process cs

227206 process acs

228207 for_ (V.indexed v) $ \(ix, jr') -> do

229− let newPath = dpath <> pure (Index $ fromIntegral ix)

230− validateJsonRepr s newPath jr'

231− ReprOptional d -> case sschema of

208+ let newPath = dpath <> pure (DIx $ fromIntegral ix)

209+ withSingI s $ validateJsonRepr newPath jr'

210+ ReprOptional d -> case sing :: Sing schema of

232211 SSchemaOptional ss -> case d of

233− Just x -> validateJsonRepr ss dpath x

212+ Just x -> withSingI ss $ validateJsonRepr dpath x

234213 Nothing -> pure ()

235− ReprObject fs -> case sschema of

214+ ReprObject fs -> case sing :: Sing schema of

236215 SSchemaObject _ -> go fs

237216 where

238217 go :: Rec FieldRepr (ts :: [(Symbol, Schema)] ) -> Validation ()

239218 go RNil = pure ()

240219 go (f@(FieldRepr d) :& ftl) = do

241− let newPath = dpath <> [Key (knownFieldName f)]

242− validateJsonRepr (knownFieldSchema f) newPath d

220+ let newPath = dpath <> [DKey (knownFieldName f)]

221+ withSingI (knownFieldSchema f)

222+ $ validateJsonRepr newPath d

243223 go ftl

244− ReprUnion _ -> pure () -- FIXME

245− -- case sschema of

246− -- SSchemaUnion ss -> case ss of

247− -- SCons s stl -> case umatch' s u of

248− -- Nothing -> case urestrict u of

249− -- Nothing ->

250− -- fail "impossible to produce subUnion, please report this as a bug"

251− -- Just x -> do

252− -- let

253− -- JSONPathText path = demotedPathToText dpath

254− -- case stl of

255− -- SNil -> void $ vWarning $ mmSingleton path

256− -- $ pure "union handling error, please report this as bug"

257− -- SCons s' stl' ->

258− -- validateJsonRepr (SSchemaUnion (SCons s' stl')) dpath

259− -- $ toUnion (SCons s' stl') x

260− -- Just x -> validateJsonRepr s dpath x

261−

262−-- subUnion

263−-- :: Sing (s ': stl)

264−-- -> ( USubset stl (s ': stl) (RImage stl (s ': stl))

265−-- => Union f (s ': stl)

266−-- -> Maybe (Union f stl) )

267−-- subUnion (SCons s stl) = urestrict

224+ ReprUnion u -> pure () -- upeel u (sing :: Sing schema)

225+ -- ReprUnion u -> do

226+ -- let

227+ -- v :: forall s. JsonRepr s -> Const (Validation ()) s

228+ -- v j = Const $ validateJsonRepr (singByProxy j) dpath j

229+ -- peel :: Union (Const (Validation ())) ts -> Validation ()

230+ -- peel (That u) = peel u

231+ -- peel (This v) = getConst v

232+ -- peel (umap v u)

233+ -- ReprUnion u -> do

234+ -- let

235+ -- peel :: Union JsonRepr ss -> [DemotedSchema] -> Validation ()

236+ -- peel (That u) ds = peel u ds

237+ -- peel (This j) ds = case ds of

238+ -- [] -> error "peeling error: report this as a schematic bug"

239+ -- (ds' :_) -> let s' = toSing ds'

240+ -- in case s' of

241+ -- SomeSing s -> case s `testEquality` (singByProxy j) of

242+ -- Just Refl -> validateJsonRepr s dpath j

243+ -- case sschema of

244+ -- SSchemaUnion us -> peel u (fromSing us)

268245

269−-- withUSubset

270−-- :: Sing (s ': stl)

271−-- -> (USubset stl (s ': stl) (RImage stl (s ': stl)) => Maybe (Union f stl))

272−-- -> Maybe (Union f stl)

273−-- withUSubset (SCons s stl) r = r

246+class UPeel ss where

247+ upeel :: Union JsonRepr ss -> Sing (SchemaUnion ss :: Schema) -> Validation ()

274248

275−toUnion

276− :: USubset s' (s ': ss) (RImage s' (s ': ss))

277− => Sing (s ': ss)

278− -> Union JsonRepr s'

279− -> JsonRepr ('SchemaUnion (s ': ss))

280−toUnion _ = ReprUnion . urelax

249+instance (UPeel stl) => UPeel (s ': stl) where

250+ upeel (That u) (SSchemaUnion (SCons _ stl)) = upeel @stl u (SSchemaUnion stl)

251+ upeel (This j) (SSchemaUnion (SCons s _)) = withSingI s $ validateJsonRepr mempty j

281252

282−umatch' :: UElem a as i => Sing a -> Union f as -> Maybe (f a)

283−umatch' _ u = umatch u

253+umatch' :: UElem a as i => Sing a -> Union JsonRepr as -> Maybe (JsonRepr a)

254+umatch' _ = umatch

284255

285256parseAndValidateJson

286257 :: forall schema

@@ -292,7 +263,7 @@ parseAndValidateJson v =

292263 Left s -> DecodingError $ T.pack s

293264 Right jsonRepr ->

294265 let

295− validate = validateJsonRepr (sing :: Sing schema) [] jsonRepr

266+ validate = validateJsonRepr [] jsonRepr

296267 res = runIdentity . runValidationTEither $ validate

297268 in case res of

298269 Left em -> ValidationError em

stack-13.21.yamldeleted−7

@@ -1,7 +0,0 @@

1−resolver: lts-13.21

2−extra-deps:

3− - hjsonpointer-1.4.0@rev:0

4− - hjsonschema-1.9.0@rev:0

5− - validationt-0.3.0

6−nix:

7− packages: [pcre, pkg-config, zlib]

stack-13.7.yamlnew file+5

@@ -0,0 +1,5 @@

1+resolver: lts-13.7

2+extra-deps:

3+ - hjsonpointer-1.4.0@rev:0

4+ - hjsonschema-1.9.0@rev:0

5+ - validationt-0.2.1.0

stack.yaml+4−5

@@ -1,6 +1,5 @@

1−resolver: lts-14.22

1+resolver: lts-12.0

22extra-deps:

3−- hjsonpointer-1.4.0@rev:0

4−- hjsonschema-1.9.0@rev:0

5−- git: https://github.com/typeable/validationt.git

6− commit: 97fea97c4015ab5e99f3efb2c73e1fef4b8857d8

3+ - hjsonpointer-1.4.0@rev:0

4+ - hjsonschema-1.9.0@rev:0

5+ - validationt-0.2.1.0

test/JsonSchemaSpec.hs−58

@@ -10,7 +10,6 @@ module JsonSchemaSpec (spec, main) where

1010import Data.Aeson as J

1111import Data.Maybe

1212import Data.Proxy

13−import Data.ByteString.Lazy as B

1413import Data.Schematic

1514import Data.Vinyl

1615import JSONSchema.Draft4 as D4

@@ -32,27 +31,6 @@ exampleData = withRepr @SchemaExample $

3231 :& field @"bar" (pure (ReprText "foo"))

3332 :& RNil

3433

35−type SchemaArrayExample = 'SchemaObject

36− '[ '("a1", 'SchemaArray '[ 'AGt 1 ] ('SchemaNumber '[]))

37− , '("a2", 'SchemaArray '[ 'AGe 1 ] ('SchemaNumber '[]))

38− , '("a3", 'SchemaArray '[ 'ALt 1 ] ('SchemaNumber '[]))

39− , '("a4", 'SchemaArray '[ 'ALe 1 ] ('SchemaNumber '[]))

40− ]

41−

42−type SchemaNumberExample = 'SchemaObject

43− '[ '("n1", 'SchemaNumber '[ 'NGt 1 ])

44− , '("n2", 'SchemaNumber '[ 'NGe 1 ])

45− , '("n3", 'SchemaNumber '[ 'NLt 1 ])

46− , '("n4", 'SchemaNumber '[ 'NLe 1 ])

47− ]

48−

49−type SchemaTextExample = 'SchemaObject

50− '[ '("t1", 'SchemaText '[ 'TGt 1 ])

51− , '("t2", 'SchemaText '[ 'TGe 1 ])

52− , '("t3", 'SchemaText '[ 'TLt 1 ])

53− , '("t4", 'SchemaText '[ 'TLe 1 ])

54− ]

55−

5634spec :: Spec

5735spec = do

5836 it "validates simple schema" $ do

@@ -60,42 +38,6 @@ spec = do

6038 fetchHTTPAndValidate schema (toJSON exampleData) >>= \case

6139 Left _ -> fail "failed to validate test example"

6240 Right _ -> pure ()

63− it "validates schema with arrays" $ do

64− let

65− schema = D4.SchemaWithURI (fromJust $ toJsonSchema (Proxy @SchemaArrayExample)) Nothing

66− obj = withRepr @SchemaArrayExample $

67− field @"a1" [ReprNumber 13, ReprNumber 13]

68− :& field @"a2" [ReprNumber 13]

69− :& field @"a3" []

70− :& field @"a4" [ReprNumber 13]

71− :& RNil

72− fetchHTTPAndValidate schema (toJSON obj) >>= \case

73− Left e -> fail "failed to validate test example"

74− Right _ -> pure ()

75− it "validates schema with numbers" $ do

76− let

77− schema = D4.SchemaWithURI (fromJust $ toJsonSchema (Proxy @SchemaNumberExample)) Nothing

78− obj = withRepr @SchemaNumberExample $

79− field @"n1" 1.1

80− :& field @"n2" 1

81− :& field @"n3" 0.9

82− :& field @"n4" 1.0

83− :& RNil

84− fetchHTTPAndValidate schema (toJSON obj) >>= \case

85− Left e -> fail "failed to validate test example"

86− Right _ -> pure ()

87− it "validates schema with strings" $ do

88− let

89− schema = D4.SchemaWithURI (fromJust $ toJsonSchema (Proxy @SchemaTextExample)) Nothing

90− obj = withRepr @SchemaTextExample $

91− field @"t1" "11"

92− :& field @"t2" "1"

93− :& field @"t3" ""

94− :& field @"t4" "1"

95− :& RNil

96− fetchHTTPAndValidate schema (toJSON obj) >>= \case

97− Left e -> fail "failed to validate test example"

98− Right _ -> pure ()

9941

10042main :: IO ()

10143main = hspec spec