master..0545208 · schematic

git.iko.soy/schematic

31 files changed+467−2570

unifiedsplit

.travis.yml+2−2 ChangeLog.md−50 README.md+33−175 release−43 release.nix−32 schematic.cabal+44−39 src/Data/Schematic.hs+82−40 src/Data/Schematic/DSL.hs−92 src/Data/Schematic/Generator.hs−91 src/Data/Schematic/Generator/Regex.hs−76 src/Data/Schematic/Helpers.hs−59 src/Data/Schematic/Instances.hs−4 src/Data/Schematic/JsonSchema.hs−124 src/Data/Schematic/Lens.hs−207 src/Data/Schematic/Migration.hs+27−56 src/Data/Schematic/Path.hs+17−6 src/Data/Schematic/Schema.hs+87−382 src/Data/Schematic/Schema.hs-boot−95 src/Data/Schematic/Utils.hs+42 src/Data/Schematic/Validation.hs+25−153 src/Data/Schematic/Verifier.hs−5 src/Data/Schematic/Verifier/Array.hs−14 src/Data/Schematic/Verifier/Common.hs−43 src/Data/Schematic/Verifier/Number.hs−31 src/Data/Schematic/Verifier/Text.hs−121 stack-13.7.yaml−5 stack.yaml+53−4 test/HelpersSpec.hs−124 test/JsonSchemaSpec.hs−101 test/LensSpec.hs−318 test/SchemaSpec.hs+55−78

.travis.yml+2−2

@@ -1,4 +1,4 @@

1−sudo: required

1+sudo: false

33language: c

@@ -22,4 +22,4 @@ script:

2222

2323cache:

2424 directories:

25− - $HOME/.stack

25+ - $HOME/.stack

ChangeLog.md−50

@@ -1,55 +1,5 @@

11# Revision history for schematic

3−## 0.5.0.0 -- 2019-02-20

4−

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

6−parsing error messages.

7−

8−## 0.4.3.0 -- 2018-07-12

9−

10−GHC 8.4 support, dropping support for older GHC versions

11−

12−## 0.4.2.0

13−

14−Support ghc-8.4 and drop support for older versions

15−

16−## 0.4.1.0 -- 2017-11-05

17−

18−Convenience isomorphisms: txt, num, opt, bln etc

19−

20−## 0.4.1.0 -- 2017-11-01

21−

22−flens and fget now use type application syntax

23−

24−## 0.4.0.0 -- 2017-10-17

25−

26−Object building DSL, more convenience helpers, MCons simplified with Tagged

27−

28−## 0.3.2.0 -- 2017-10-02

29−

30−Fixed FIndex bug, added bunch of convenience isomorphism, re-exports.

31−

32−## 0.3.1.0 -- 2017-09-28

33−

34−Add UUID and ISO8601 helpers, json schema constraint export, fsubset lens

35−combinator.

36−

37−## 0.3.0.0 -- 2017-09-28

38−

39−Updated to GHC 8.2.1 and singletons 2.3.1

40−

41−## 0.2.1.0 -- 2017-09-26

42−

43−Add decodeAndValidateVersionedWithPureMList, fix tests

44−

45−## 0.2.0.0 -- 2017-09-26

46−

47−Migratable is deprecated, migrations are now possible in an arbitrary monad.

48−

49−## 0.1.5.0 -- 2017-08-22

50−

51−Lens compatibility for typed json objects.

52−

533## 0.1.0.0 -- YYYY-mm-dd

544

555* First version. Released on an unsuspecting world.

README.md+33−175

@@ -1,16 +1,23 @@

11# schematic

3−[![Build Status](https://travis-ci.org/typeable/schematic.svg?branch=master)](https://travis-ci.org/typeable/schematic)

3+[![Build Status](https://travis-ci.org/dredozubov/schematic.svg?branch=master)](https://travis-ci.org/dredozubov/schematic)

55## Goal

77The goal of the library is to provide a type-safe transport layer for serializing and validating JSON. It can be thought of as a subset of [json-schema](http://json-schema.org), which is basically a specification of a JSON document. The other goal is getting as much as possible from this specification for free. Right now the following bits are prototyped:

9−* All of the instantiations of the transport types structurally follow the schema provided by user

10−* Serializers are generic, so they follow from the type-level schema and the're supposed to have a roundtrip property by an implementation.

9+* All the instantiations of transport types are structurally follow the schema provided by user

10+* Serializers are generic, so they follow from the type-level schema and the're supposed to have roundtrip property by implementation.

1111* Runtime value validators are generated from the schema. Validation errors are reported as a pairs of a json-path to the element and an error message.

12−* There are migrations. It's possible to describe a series of migrations to the schema and have all the necessary machinery to deserialize a user specified version of the schema if there are multiple versions available.

13−* Schematic schemas can be exported to [json-schema](http://json-schema.org)

12+* There are migrations. It's possible to describe a series of migrations to the schema and have all the machinery deserialize a user specified version of the schema if there's a few versions.

13+

14+## TODO

15+

16+* Making a migration system more usable. It should allow it to be used as a json safecopy solution minus the boilerplate.

17+* Describing versioned http endpoints

18+* Schema pretty-printing

19+* More validators

20+* Overall user friendliness

1421

1522Be aware that library is experimental and subject to change a lot. The current state can be viewed as a prototype.

1623

@@ -22,134 +29,67 @@ Be aware that library is experimental and subject to change a lot. The current s

2229$ stack install schematic

2330```

2431

25−## GHC Extensions

26−

27−To use this library without any hassle you should add a few GHC extension

28−either to a module or a cabal file:

29−

30−```

31−DataKinds

32−OverloadedLists

33−OverloadedStrings

34−TypeApplications

35−```

36−

37−`Overloaded`-extensions are being used only by `field` combinator,

38−so if you don't use it - feel free to disable it.

39−

40−## GHC Options

41−

42−I recommend using `{-# OPTIONS_GHC -fno-warn-unticked-promoted-constructors #-}`

43−pragma in modules which declare schemas and schema migrations, because `schematic`

44−heavily uses promoted types which should be prefixed with "`" signs and they can

45−be dropped with this option, making it less noisy visually.

46−It's entirely optional and totally opinionated, so feel free to ignore this.

47−Through the documentation, the code is written without any explicit ticks for

48−the same reason.

49−Notice that they're still needed for type-level lists and tuples in schematic code.

50−

5132## Basic Examples

5233

53−```haskell

34+```

5435type SchemaExample

5536 = SchemaObject

5637 '[ '("foo", SchemaArray '[AEq 1] (SchemaNumber '[NGt 10]))

5738 , '("bar", SchemaOptional (SchemaText '[TEnum '["foo", "bar"]]))]

5839```

5940

60−* This schema says that's structurally it's a JSON object which has two fields:

61− * field "foo" contains an array of numeric values

62− * field "bar" contains an optional text value

63−* It also allows you to validate JSON values itself:

64− * an array in "foo" contains exactly one element

41+* This schema says that's structurally it's a JSON object which has two field:

42+ * field "foo" contains an of numeric values

43+ * field "bar" contains an optional textual value

44+* It also allows you to validate the JSON:

45+ * an array in "foo" must contain exactly one element

6546 * that element must be strictly greater than 10

66− * value of "bar" field must be either "foo" or "bar" if presented

47+ * value of bar must be either "foo" or "bar" if presented

6748

6849

6950This one is valid for example

7051

71−```haskell

52+```

7253schemaJson :: ByteString

7354schemaJson = "{\"foo\": [13], \"bar\": null}"

7455```

7556

7657Also valid

7758

78−```haskell

59+```

7960schemaJson :: ByteString

8061schemaJson = "{\"foo\": [13], \"bar\": \"bar\"}"

8162```

8263

8364it can be parsed and validated like this:

8465

85−```haskell

66+```

8667decodeAndValidateJson schemaJson :: ParseResult (JsonRepr SchemaExample)

8768```

8869

8970`ParseResult` type encodes three possible situations:

90−* json is structurally consistent with a schema and runtime validations pass

91−* json source is malformed or doesn't correspond to a schema structurally

92−* some of the runtime validations have failed, but it's structurally correct

93− overall

94−

95−It implies a transport layer representation of that data that can be traversed

96−and transformed to whatever internal types user has.

97−It's called `JsonRepr`. Type parameter is the schema itself.

71+* json is structurally consistent with schema and runtime validations passed

72+* json source is malformed or doesn't correspond to schema structurally

73+* some of the runtime validations failed, but it's structurally correct

9874

99−```haskell

100−jsonExample :: JsonRepr SchemaExample

101−jsonExample = withRepr @SchemaExample

102− $ field @"foo" [12]

103− :& field @"bar" (Just "bar")

104− :& RNil

105−```

75+I t's build a transport layer representation of that data that can be tranversed and transformed to whatever internal types user has. Transport layer represetation looks like this. Type parameter is the schema itself.

10676

107−The most basic and sugar-free way of constructing the same object will look like this:

10877

10978```

110−jsonExample' :: JsonRepr SchemaExample

111−jsonExample' = ReprObject $

79+jsonExample :: JsonRepr SchemaExample

80+jsonExample = ReprObject $

11281 FieldRepr (ReprArray [ReprNumber 12])

11382 :& FieldRepr (ReprOptional (Just (ReprText "bar")))

11483 :& RNil

11584```

11685

117−## Lens-compatibility

118−

119−It's possible to use `flens` to construct a field lens for a typed object in schematic. Let's suppose you have a schema like this:

120−

121−```haskell

122−type ArraySchema = SchemaArray '[AEq 1] (SchemaNumber '[NGt 10])

123−

124−type ArrayField = '("foo", ArraySchema)

125−

126−type FieldsSchema =

127− '[ ArrayField, '("bar", SchemaOptional (SchemaText '[TEnum '["foo", "bar"]]))]

128−

129−type SchemaExample = 'SchemaObject FieldsSchema

130−

131−```

132−

133−There are two ways of working with named fields in the objects:

134−

135−* Using the `fget` and `fset` functions: `fget @"foo" (fput newFooVal objectData) == newFooVal`

136−* Using the lens library: `set (flens @"foo") newFooVal objectData ^. flens @"foo" == newFooVal`

137−

13886## Migrations

13987

140−Usually migrations are implicit and hard to deal with, `schematic` deals with it

141−by giving tools to deal with it to a programmer, being as explicit as possible,

142−notifying the developer of a missing transition with a compile-time error.

143−It allows to build versioned HTTP APIs or migrate data from the older versions

144−when reading from the JSON storages.

88+It's possible to represent schema changes as a migration, which describes a series of json-path/change pairs. Migrations can be applied in succession.

14589

146−It's possible to represent schema changes as a series of migrations,

147−which describes a series of json-path/change pairs. Migrations can be applied in

148−succession.

90+This piece of code will apply a migration to the schema, then decodes and validates the latest version.

14991

150−This piece of code will apply a migration to the schema, decode and validate the latest version.

151−

152−```haskell

92+```

15393type SchemaExample

15494 = SchemaObject

15595 '[ '("foo", SchemaArray '[AEq 1] (SchemaNumber '[NGt 10]))

@@ -157,8 +97,8 @@ type SchemaExample

15797

15898type TestMigration =

15999 'Migration "test_revision"

160− '[ Diff '[ PKey "bar" ] (Update (SchemaText '[]))

161− , Diff '[ PKey "foo" ] (Update (SchemaNumber '[])) ]

100+ '[ 'Diff '[ 'PKey "bar" ] ('Update ('SchemaText '[]))

101+ , 'Diff '[ 'PKey "foo" ] ('Update ('SchemaNumber '[])) ]

162102

163103type VS = 'Versioned SchemaExample '[ TestMigration ]

164104

@@ -171,85 +111,3 @@ It's possible to decode the latest version like this:

171111```

172112decodeAndValidateJson schemaJsonTopVersion :: ParseResult (JsonRepr (TopVersion (AllVersions VS)))

173113```

174−

175−It's important to differentiate between schema migrations and data migrations.

176−Schema migration is a change of a schema acceptable by a JSON consumer. It transforms one schema to another.

177−Data migrations on the other hand are functions on the data itself. They transform values

178−acceptable by one schema to values acceptable by another.

179−Let's look at the situation when we have to add a field to a JSON Object of a current schema:

180−

181−```haskell

182−type SchemaExample = 'SchemaObject

183− '[ '("foo", 'SchemaArray '[ 'AEq 1] ('SchemaNumber '[ 'NGt 10]))

184− , '("bar", 'SchemaOptional ('SchemaText '[ 'TEnum '["foo", "bar"]]))]

185−

186−jsonExample :: JsonRepr SchemaExample

187−jsonExample = withRepr @SchemaExample

188− $ field @"bar" (Just "bar")

189− :& field @"foo" [12]

190− :& RNil

191−

192−type AddQuuz =

193− 'Migration "add_field_quuz"

194− '[ 'Diff '[] ('AddKey "quuz" (SchemaNumber '[])) ]

195−

196−type DeleteQuuz =

197− 'Migration "remove_field_quuz"

198− '[ 'Diff '[] ( 'DeleteKey "quuz") ]

199−

200−type Migrations = '[ AddQuuz

201− , DeleteQuuz ]

202−

203−type VersionedJson = 'Versioned SchemaExample Migrations

204−

205−migrationList :: MigrationList Identity VersionedJson

206−migrationList

207− = (migrateObject (\r -> Identity $ field @"quuz" 42 :& r))

208− :&& shrinkObject

209− :&& MNil

210−

211−```

212−

213−In this instance `Migrations` is a list of schema migrations and

214−`MigrationList Identity VersionedJson` is a list of data migrations corresponding

215−to the list of schema migrations: `migrateObject (\r -> Identity $ field @"quuz" 42 :& r))`

216−will be used at runtime to transform `JsonRepr SchemaExample` to

217−`JsonRepr (SchemaByRevision "add_quuz" VersionedJson). `Identity` in the type of

218−`MigrationList` is a monad we choose to run our migrations in. If there's need to

219−do database queries or something like that, it can be changed to something more

220−appropriate by a user.

221−`migrateObject` takes a function transforming old fields into new ones, `shrinkObject`

222−allows to shrink the JSON object in case migration only removed fields.

223−

224−## How do I construct a value of `JsonRepr schema`?

225−

226−`JsonRepr schema` is a primary representation of a value serializable/deserializable

227−to JSON, but with a twist. It's guaranteed to correspond a type-level schema,

228−it's a type parameter of a same name.

229−It makes constructing it a little bit more involved, but luckily `schematic`

230−provides a DSL for doing so in a more straightforward fashion. An example would

231−look like this:

232−

233−```haskell

234−type SchemaExample = 'SchemaObject

235− '[ '("foo", SchemaArray '[ AEq 1] (SchemaNumber '[NGt 10]))

236− , '("bar", SchemaOptional (SchemaText '[TEnum '["foo", "bar"]]))]

237−

238−jsonExample = withRepr @SchemaExample

239− $ field @"bar" (Just "bar")

240− :& field @"foo" [12]

241− :& RNil

242−```

243−

244−`@foo` syntax is an explicit type application, which is a feature of GHC 8+, it

245−makes type inference possible without relying on a bunch of `Proxy`s, which

246−makes it syntactically more terse.

247−

248−[GHC Type Applications](https://ghc.haskell.org/trac/ghc/wiki/TypeApplication)

249−

250−`schematic` provides instances for `OverloadedLists` and `OverloadedStrings`

251−GHC extensions to make use of string and list literals for values in a previous

252−example.

253−

254−

255−## Export to json-schema (draft 4)

releasedeleted−43

@@ -1,43 +0,0 @@

1−#!/bin/bash

2−

3−set -o xtrace

4−

5−dist=`stack path --dist-dir --stack-yaml ./stack.yaml 2> /dev/null`

6−

7−rootdir=`pwd`

8−

9−cabalfile=`ls *.cabal`

10−packagename="${cabalfile%%.*}"

11−version=`grep '^version:' schematic.cabal | rev | cut -d" " -f1 | rev`

12−

13−echo -e "\033[1;36mTesting library...\033[0m"

14−stack test 2> /dev/null

15−

16−echo -e "\033[1;36mRunning sdist...\033[0m"

17−cabal sdist

18−

19−echo -e "\033[1;36mGenerating documentation...\033[0m"

20−stack haddock 2> /dev/null

21−

22−if [ "$?" -eq "0" ]; then

23− echo -e "\033[1;32mUploading package to Hackage...\033[0m"

24− read -p "Hackage username: " username

25− read -p "Hackage password: " -s password

26− echo ""

27− cabal upload -u $username -p $password dist/$packagename-$version.tar.gz

28−

29− docdir=`find .stack-work -name "$packagename-$version-docs"`

30−

31− echo -e "Compressing documentation from \033[1;34m$docdir\033[0m for \033[1;35m$packagename\033[0m-\033[1;33m$version\033[1;30m"

32− tar -c -v -z --format=ustar -f $docdir.tar.gz $docdir

33− echo -e "\033[1;32mUploading documentation to Hackage...\033[0m"

34− cd $docdir

35− cd ..

36− curl -X PUT -H 'Content-Type: application/x-tar' -H 'Content-Encoding: gzip' --data-binary "$packagename-$version-docs.tar.gz" "https://$username:$password@hackage.haskell.org/package/$packagename-$version/candidate/docs"

37− open "https://hackage.haskell.org/package/$packagename-$version/candidate/"

38− cd $rootdir

39− echo "To publish the candidate, use 'cabal upload --publish'."

40− exit $?

41−else

42− echo -e "\033[1;31mNot in a stack-powered project\033[0m"

43−fi

release.nixdeleted−32

@@ -1,32 +0,0 @@

1−{ schematicSrc ? { outPath = ./.; revCount = 0; gitTag = "dirty"; }

2−, supportedSystems ? [ "x86_64-linux" ]

3−}:

4−

5−let

6− _nixpkgs = import <nixpkgs> {};

7− inherit (_nixpkgs) pkgs lib;

8−

9− stackageOverlayPath = pkgs.fetchFromGitHub {

10− owner = "typeable";

11− repo = "nixpkgs-stackage";

12− rev = "abe0a03ba2bde609b0707ce45301ec836cb3ed29";

13− sha256 = "0ksdk83zbsgvs30izwsfyjh4xxwz8dsn9a5igrs3pjap4whpzqfv";

14− };

15−

16− nixpkgsArgs = {

17− overlays = [ (import stackageOverlayPath) ];

18− };

19−

20− release = import <nixpkgs/pkgs/top-level/release-lib.nix> { inherit nixpkgsArgs supportedSystems; };

21−

22− mkStackage = system:

23− let

24− nixpkgs = release.pkgsFor system;

25− stackage = nixpkgs.haskell.packages.stackage.lib.callStackage2nix "schematic" schematicSrc { inherit nixpkgs; };

26− in

27− stackage;

28−

29−in

30− lib.genAttrs supportedSystems (system: {

31− inherit (mkStackage system) schematic;

32− })

schematic.cabal+44−39

@@ -1,13 +1,15 @@

1+-- Initial schematic.cabal generated by cabal init. For further

2+-- documentation, see http://haskell.org/cabal/users-guide/

14name: schematic

2−version: 0.5.0.0

5+version: 0.1.4.0

36synopsis: JSON-biased spec and validation tool

4−description: 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.

7+-- description:

58license: BSD3

69license-file: LICENSE

710author: Denis Redozubov

811maintainer: denis.redozubov@gmail.com

9−homepage: http://github.com/typeable/schematic

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

12+-- copyright:

1113category: Data

1214build-type: Simple

1315extra-source-files: ChangeLog.md

@@ -15,29 +17,19 @@ cabal-version: >=1.10

1517

1618library

1719 exposed-modules: Data.Schematic

18− , Data.Schematic.DSL

19− , Data.Schematic.Generator

20− , Data.Schematic.Generator.Regex

2120 , Data.Schematic.Instances

22− , Data.Schematic.JsonSchema

23− , Data.Schematic.Helpers

24− , Data.Schematic.Lens

2521 , Data.Schematic.Migration

2622 , Data.Schematic.Path

2723 , Data.Schematic.Schema

2824 , Data.Schematic.Validation

29− , Data.Schematic.Verifier

30− , Data.Schematic.Verifier.Array

31− , Data.Schematic.Verifier.Common

32− , Data.Schematic.Verifier.Number

33− , Data.Schematic.Verifier.Text

25+ , Data.Schematic.Utils

3426 ghc-options: -Wall

27+ -- other-modules:

3528 default-extensions: ConstraintKinds

3629 , DataKinds

3730 , DefaultSignatures

3831 , DeriveFunctor

3932 , DeriveFoldable

40− , DeriveTraversable

4133 , DeriveGeneric

4234 , DeriveDataTypeable

4335 , FlexibleContexts

@@ -60,29 +52,22 @@ library

6052 , TemplateHaskell

6153 , TypeApplications

6254 , TypeFamilies

63− , TypeFamilyDependencies

6455 , TypeInType

6556 , TypeOperators

6657 , TypeSynonymInstances

6758 , UndecidableInstances

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

59+ build-depends: base >=4.9 && <4.10

6960 , bytestring

7061 , aeson >= 1

71− , containers

72− , hjsonschema

73− , mtl

74− , profunctors

75− , regex-tdfa

76− , regex-tdfa-text

62+ , regex-compat

7763 , scientific

78− , singletons >= 2.4

64+ , singletons

7965 , smallcheck

66+ , smallcheck-series

8067 , tagged

81− , template-haskell

8268 , text

83− , union

8469 , unordered-containers

85− , validationt >= 0.2.1.0

70+ , validationt >= 0.1.0.1

8671 , vector

8772 , vinyl

8873 hs-source-dirs: src

@@ -93,28 +78,48 @@ test-suite spec

9378 hs-source-dirs: test

9479 main-is: Spec.hs

9580 default-language: Haskell2010

81+ default-extensions: ConstraintKinds

82+ , DataKinds

83+ , DeriveFunctor

84+ , DeriveFoldable

85+ , DeriveGeneric

86+ , DeriveDataTypeable

87+ , FlexibleContexts

88+ , FlexibleInstances

89+ , FunctionalDependencies

90+ , GADTs

91+ , KindSignatures

92+ , InstanceSigs

93+ , MultiParamTypeClasses

94+ , OverloadedLists

95+ , OverloadedStrings

96+ , PolyKinds

97+ , QuasiQuotes

98+ , PartialTypeSignatures

99+ , RecordWildCards

100+ , ScopedTypeVariables

101+ , TemplateHaskell

102+ , TypeApplications

103+ , TypeFamilies

104+ , TypeInType

105+ , TypeOperators

106+ , TypeSynonymInstances

96107 build-depends: HUnit

97108 , aeson >= 1

98− , base >=4.11 && <4.13

109+ , base >=4.9 && <4.10

99110 , bytestring

100− , containers

101− , hjsonschema

102111 , hspec >= 2.2.0

103112 , hspec-core

104113 , hspec-discover

105114 , hspec-smallcheck

106− , lens

107− , regex-tdfa

108− , regex-tdfa-text

115+ , regex-compat

109116 , schematic

110117 , smallcheck

118+ , smallcheck-series

111119 , singletons

112120 , tagged

113121 , text

114122 , unordered-containers

115− , validationt >= 0.2.1.0

123+ , validationt >= 0.1.0.1

116124 , vinyl

117− other-modules: SchemaSpec

118− , HelpersSpec

119− , LensSpec

120− , JsonSchemaSpec

125+ other-modules: SchemaSpec

src/Data/Schematic.hs+82−40

@@ -2,43 +2,60 @@

22{-# LANGUAGE AllowAmbiguousTypes #-}

44module Data.Schematic

5− ( module Data.Schematic.JsonSchema

6− , module Data.Schematic.Helpers

7− , module Data.Schematic.Lens

5+ ( module Data.Schematic.Schema

86 , module Data.Schematic.Migration

9− , module Data.Schematic.Schema

7+ , module Data.Schematic.Utils

108 , decodeAndValidateJson

119 , parseAndValidateJson

1210 , parseAndValidateJsonBy

11+ , parseAndValidateVersionedJson

1312 , parseAndValidateTopVersionJson

13+ , decodeAndValidateVersionedJson

1414 , parseAndValidateWithMList

1515 , decodeAndValidateVersionedWithMList

16− , decodeAndValidateVersionedWithPureMList

1716 , isValid

1817 , isDecodingError

1918 , isValidationError

2019 , ParseResult(..)

21− , withRepr

22− , field

20+ , Migratable

2321 ) where

2422

2523import Control.Monad.Validation

2624import Data.Aeson as J

2725import Data.Aeson.Types as J

2826import Data.ByteString.Lazy as BL

29−import Data.Functor.Identity as F

30−import Data.Schematic.DSL

31−import Data.Schematic.Helpers

32−import Data.Schematic.JsonSchema

33−import Data.Schematic.Lens

27+import Data.Functor.Identity

3428import Data.Schematic.Migration

3529import Data.Schematic.Schema

30+import Data.Schematic.Utils

3631import Data.Schematic.Validation

37−import Data.Singletons.Prelude hiding ((:.))

38−import Data.Tagged

32+import Data.Singletons.Prelude

3933import Data.Text as T

4034

4135

36+parseAndValidateJson

37+ :: forall schema

38+ . (J.FromJSON (JsonRepr schema), TopLevel schema, SingI schema)

39+ => J.Value

40+ -> ParseResult (JsonRepr schema)

41+parseAndValidateJson v =

42+ case parseEither parseJSON v of

43+ Left s -> DecodingError $ T.pack s

44+ Right jsonRepr ->

45+ let

46+ validate = validateJsonRepr (sing :: Sing schema) [] jsonRepr

47+ res = runIdentity . runValidationTEither $ validate

48+ in case res of

49+ Left em -> ValidationError em

50+ Right () -> Valid jsonRepr

51+

52+parseAndValidateJsonBy

53+ :: (J.FromJSON (JsonRepr schema), TopLevel schema, SingI schema)

54+ => proxy schema

55+ -> J.Value

56+ -> ParseResult (JsonRepr schema)

57+parseAndValidateJsonBy _ = parseAndValidateJson

58+

4259parseAndValidateTopVersionJson

4360 :: forall proxy (v :: Versioned)

4461 . (SingI (TopVersion (AllVersions v)))

@@ -57,23 +74,44 @@ parseAndValidateTopVersionJson _ v =

5774 Left em -> ValidationError em

5875 Right () -> Valid jsonRepr

5976

77+class Migratable (revisions :: [(Revision, Schema)]) where

78+ mparse

79+ :: Sing revisions

80+ -> J.Value

81+ -> ParseResult (JsonRepr (Snd (Head revisions)))

82+

83+instance

84+ {-# OVERLAPPING #-}

85+ ( TopLevel (Snd rev), SingI (Snd rev) )

86+ => Migratable '[rev] where

87+ mparse _ = parseAndValidateJson

88+

89+instance {-# OVERLAPPABLE #-}

90+ ( Migratable (Tail revisions)

91+ , MigrateSchema (Snd (Head (Tail revisions))) (Snd (Head revisions))

92+ , SingI (Snd (Head revisions)))

93+ => Migratable revisions where

94+ mparse s v = case parseEither parseJSON v of

95+ Left _ ->

96+ migrate <$> (mparse (sTail s) v :: ParseResult (JsonRepr (Snd (Head (Tail revisions)))))

97+ Right x -> Valid x

98+

99+parseAndValidateVersionedJson

100+ :: forall proxy v. (SingI (AllVersions v), Migratable (AllVersions v))

101+ => proxy v

102+ -> J.Value

103+ -> ParseResult (JsonRepr (Snd (Head (AllVersions v))))

104+parseAndValidateVersionedJson _ v = mparse (sing :: Sing (AllVersions v)) v

105+

60106parseAndValidateWithMList

61− :: Monad m

62− => MList m revisions

107+ :: MList revisions

63108 -> J.Value

64− -> m (ParseResult (JsonRepr (Head revisions)))

65−parseAndValidateWithMList MNil v = pure $ parseAndValidateJson v

66−parseAndValidateWithMList (Tagged f :&& tl) v =

67− case parseAndValidateJsonBy Proxy v of

68− Valid a -> pure $ Valid a

69− DecodingError _ -> do

70− pr <- parseAndValidateWithMList tl v

71− let pr' = f <$> pr

72− sequence pr'

73− ValidationError _ -> do

74− pr <- parseAndValidateWithMList tl v

75− let pr' = f <$> pr

76− sequence pr'

109+ -> ParseResult (JsonRepr (Head revisions))

110+parseAndValidateWithMList MNil v = parseAndValidateJson v

111+parseAndValidateWithMList ((:&&) p f tl) v = case parseAndValidateJsonBy p v of

112+ Valid a -> Valid a

113+ DecodingError _ -> f <$> parseAndValidateWithMList tl v

114+ ValidationError _ -> f <$> parseAndValidateWithMList tl v

77115

78116decodeAndValidateJson

79117 :: forall schema

@@ -84,20 +122,24 @@ decodeAndValidateJson bs = case decode bs of

84122 Nothing -> DecodingError "malformed json"

85123 Just x -> parseAndValidateJson x

86124

87−decodeAndValidateVersionedWithMList

88− :: Monad m

125+decodeAndValidateVersionedJson

126+ :: (Migratable (AllVersions versioned), SingI (AllVersions versioned))

89127 => proxy versioned

90− -> MList m (MapSnd (AllVersions versioned))

91128 -> BL.ByteString

92− -> m (ParseResult (JsonRepr (Head (MapSnd (AllVersions versioned)))))

93−decodeAndValidateVersionedWithMList _ mlist bs = case decode bs of

94− Nothing -> pure $ DecodingError "malformed json"

95− Just x -> parseAndValidateWithMList mlist x

129+ -> ParseResult (JsonRepr (Snd (Head (AllVersions versioned))))

130+decodeAndValidateVersionedJson vp bs = case decode bs of

131+ Nothing -> DecodingError "malformed json"

132+ Just x -> parseAndValidateVersionedJson vp x

96133

97−decodeAndValidateVersionedWithPureMList

134+type family MapSnd (l :: [(a,k)]) = (r :: [k]) where

135+ MapSnd '[] = '[]

136+ MapSnd ( '(a, b) ': tl) = b ': MapSnd tl

137+

138+decodeAndValidateVersionedWithMList

98139 :: proxy versioned

99− -> MList F.Identity (MapSnd (AllVersions versioned))

140+ -> MList (MapSnd (AllVersions versioned))

100141 -> BL.ByteString

101142 -> ParseResult (JsonRepr (Head (MapSnd (AllVersions versioned))))

102−decodeAndValidateVersionedWithPureMList a b c =

103− runIdentity $ decodeAndValidateVersionedWithMList a b c

143+decodeAndValidateVersionedWithMList _ mlist bs = case decode bs of

144+ Nothing -> DecodingError "malformed json"

145+ Just x -> parseAndValidateWithMList mlist x

src/Data/Schematic/DSL.hsdeleted−92

@@ -1,92 +0,0 @@

1−{-# LANGUAGE AllowAmbiguousTypes #-}

2−{-# LANGUAGE CPP #-}

3−

4−module Data.Schematic.DSL where

5−

6−import Data.Kind

7−import Data.Schematic.Lens

8−import Data.Schematic.Schema

9−import Data.Scientific

10−import Data.Singletons

11−import Data.Singletons.Prelude hiding ((:.))

12−import Data.Singletons.TypeLits

13−import Data.Tagged

14−import Data.Text as T

15−import Data.Union

16−import qualified Data.Vector as V

17−import Data.Vinyl

18−import Data.Vinyl.Functor

19−

20−

21−#if MIN_VERSION_base(4,12,0)

22−type Constructor a

23− = forall fields b

24− . (fields ~ FieldsOf a, FSubset fields b (FImage fields b), RMap fields)

25− => Rec (Tagged fields :. FieldRepr) b

26− -> JsonRepr ('SchemaObject fields)

27−#else

28−type Constructor a

29− = forall fields b

30− . (fields ~ FieldsOf a, FSubset fields b (FImage fields b))

31− => Rec (Tagged fields :. FieldRepr) b

32− -> JsonRepr ('SchemaObject fields)

33−#endif

34−withRepr :: Constructor a

35−withRepr = ReprObject . rmap (unTagged . getCompose) . fcast

36−

37−class Representable s where

38− constructField :: Sing fn -> Proxy s -> Repr s -> FieldRepr '(fn, s)

39−

40−instance SingI so => Representable ('SchemaObject so) where

41− constructField sfn _ o = withKnownSymbol sfn $ FieldRepr $ ReprObject o

42−

43−instance (SingI cs, SingI sa) => Representable ('SchemaArray cs sa) where

44− constructField sfn _ a = withKnownSymbol sfn $ FieldRepr $ ReprArray a

45−

46−instance SingI cs => Representable ('SchemaText cs) where

47− constructField sfn _ t = withKnownSymbol sfn $ FieldRepr $ ReprText t

48−

49−instance SingI cs => Representable ('SchemaNumber cs) where

50− constructField sfn _ n = withKnownSymbol sfn $ FieldRepr $ ReprNumber n

51−

52−instance Representable 'SchemaBoolean where

53− constructField sfn _ b = withKnownSymbol sfn $ FieldRepr $ ReprBoolean b

54−

55−instance SingI so => Representable ('SchemaOptional so) where

56− constructField sfn _ o = withKnownSymbol sfn $ FieldRepr $ ReprOptional o

57−

58−instance SingI (h ': tl) => Representable ('SchemaUnion (h ': tl)) where

59− constructField sfn _ u = withKnownSymbol sfn $ FieldRepr $ ReprUnion u

60−

61−construct :: Sing s -> Repr s -> JsonRepr s

62−construct s r = case s of

63− SSchemaObject _ -> ReprObject r

64− SSchemaArray _ _ -> ReprArray r

65− SSchemaText _ -> ReprText r

66− SSchemaNumber _ -> ReprNumber r

67− SSchemaBoolean -> ReprBoolean r

68− SSchemaOptional _ -> ReprOptional r

69− SSchemaNull -> ReprNull

70− SSchemaUnion ss -> case ss of

71− SNil -> error "unconstructable union"

72− SCons _ _ -> ReprUnion r

73−

74−type family FieldsOf (s :: Schema) :: [(Symbol, Schema)] where

75− FieldsOf ('SchemaObject fs) = fs

76−

77−type FieldConstructor fn =

78− forall byField fs. (byField ~ ByField fn fs (FIndex fn fs), Representable byField)

79− => Repr byField

80− -> (Tagged fs :. FieldRepr) '(fn, byField)

81−

82−field :: forall fn. KnownSymbol fn => FieldConstructor fn

83−field = Compose . Tagged . constructField (sing :: Sing fn) Proxy

84−

85−type family Repr (s :: Schema) = (ty :: Type) where

86− Repr ('SchemaObject so) = Rec FieldRepr so

87− Repr ('SchemaArray cs sa) = V.Vector (JsonRepr sa)

88− Repr ('SchemaText cs) = Text

89− Repr ('SchemaNumber cs) = Scientific

90− Repr 'SchemaBoolean = Bool

91− Repr ('SchemaOptional so) = Maybe (JsonRepr so)

92− Repr ('SchemaUnion (h ': tl)) = Union JsonRepr (h ': tl)

src/Data/Schematic/Generator.hsdeleted−91

@@ -1,91 +0,0 @@

1−module Data.Schematic.Generator where

2−

3−import Data.Maybe

4−import Data.Schematic.Generator.Regex

5−import {-# SOURCE #-} Data.Schematic.Schema

6−import Data.Schematic.Verifier

7−import Data.Scientific

8−import Data.Text (Text, pack)

9−import qualified Data.Vector as V

10−import Test.SmallCheck.Series

11−

12−maxHigh :: Int

13−maxHigh = 30

14−

15−minLow :: Int

16−minLow = 2

17−

18−textLengthSeries :: Monad m => [VerifiedTextConstraint] -> Series m Text

19−textLengthSeries =

20− \case

21− [VTEq eq] -> pure $ pack $ take (fromIntegral eq) $ cycle "sample"

22− [VTBounds ml mh] -> do

23− let

24− l = fromMaybe minLow (fromIntegral <$> ml) + 1

25− h = fromMaybe maxHigh (fromIntegral <$> mh) - 1

26− n <- generate $ \depth -> take depth [l .. h]

27− pure $ pack $ take (fromIntegral n) $ cycle "sample"

28− _ -> pure "error"

29−

30−textEnumSeries :: Monad m => [Text] -> Series m Text

31−textEnumSeries enum = generate $ \depth -> take depth enum

32−

33−textSeries :: Monad m => [DemotedTextConstraint] -> Series m Text

34−textSeries cs = do

35− let mvcs = verifyTextConstraints cs

36− case mvcs of

37− Just vcs -> do

38− n <- textSeries' vcs

39− pure n

40− Nothing -> pure "error"

41−

42−textSeries' :: Monad m => [VerifiedTextConstraint] -> Series m Text

43−textSeries' [] = pure "sample"

44−textSeries' vcs = do

45− let enums = listToMaybe [x | VTEnum x <- vcs]

46− case enums of

47− Just e -> textEnumSeries e

48− Nothing -> do

49− let regexps = listToMaybe [x | VTRegex x _ _ <- vcs]

50− case regexps of

51− Just e -> regexSeries e

52− Nothing -> textLengthSeries vcs

53−

54−numberSeries :: Monad m => [DemotedNumberConstraint] -> Series m Scientific

55−numberSeries cs = do

56− let mvcs = verifyNumberConstraints cs

57− case mvcs of

58− Just vcs -> do

59− n <- numberSeries' vcs

60− pure $ n

61− Nothing -> pure 0

62−

63−numberSeries' :: Monad m => VerifiedNumberConstraint -> Series m Scientific

64−numberSeries' =

65− \case

66− VNEq eq -> pure $ fromIntegral eq

67− VNBounds ml mh -> do

68− let l = fromMaybe minLow (fromIntegral <$> ml) + 1

69− h = fromMaybe maxHigh (fromIntegral <$> mh) - 1

70− n <- generate $ \depth -> take depth [l .. h]

71− pure $ fromIntegral n

72−

73−arraySeries

74− :: (Monad m, Serial m (JsonRepr s))

75− => [DemotedArrayConstraint]

76− -> Series m (V.Vector (JsonRepr s))

77−arraySeries cs = do

78− let mvcs = verifyArrayConstraint cs

79− case mvcs of

80− Just vcs -> arraySeries' vcs

81− Nothing -> pure V.empty

82−

83−arraySeries'

84− :: forall m s. (Monad m, Serial m (JsonRepr s))

85− => Maybe VerifiedArrayConstraint

86− -> Series m (V.Vector (JsonRepr s))

87−arraySeries' ml = do

88− objs <- V.replicateM (maybe minRepeat f ml) (series :: Series m (JsonRepr s))

89− pure $ objs

90− where

91− f (VAEq l) = fromIntegral l

src/Data/Schematic/Generator/Regex.hsdeleted−76

@@ -1,76 +0,0 @@

1−module Data.Schematic.Generator.Regex where

2−

3−import Control.Monad

4−import Data.List

5−import Data.Maybe

6−import qualified Data.Set as S

7−import Data.Text (Text, unpack)

8−import Data.Text.Lazy (toStrict)

9−import Data.Text.Lazy.Builder (Builder, singleton, toLazyText)

10−import Test.SmallCheck.Series

11−import Text.Regex.TDFA.Pattern

12−import Text.Regex.TDFA.ReadRegex (parseRegex)

13−

14−

15−minRepeat :: Int

16−minRepeat = 2

17−

18−maxRepeat :: Int

19−maxRepeat = 10

20−

21−regexSeries :: (Monad m) => Text -> Series m Text

22−regexSeries regexp =

23− case parseRegex . unpack $ regexp of

24− Right (p, _) -> toStrict . toLazyText <$> regexSeries' p

25− Left _ -> pure ""

26−

27−regexSeries' :: (Monad m) => Pattern -> Series m Builder

28−regexSeries' pt =

29− case pt of

30− PEmpty -> pure mempty

31− PChar {..} -> pure $ singleton getPatternChar

32− PAny {getPatternSet = PatternSet (Just cset) _ _ _} -> do

33− x <- generate $ \depth -> take depth $ S.toList cset

34− pure $ singleton x

35− PAnyNot {getPatternSet = PatternSet (Just cset) _ _ _} -> do

36− x <-

37− generate $ \depth ->

38− take depth $ notChars $ concatMap expandEscape $ S.toList cset

39− pure $ singleton x

40− PQuest p -> regexSeries' p \/ pure mempty

41− PPlus p -> regexSeries' $ PBound 1 Nothing p

42− PStar _ p -> regexSeries' $ PBound 0 Nothing p

43− PBound low mhigh p -> do

44− let high = fromMaybe (low + maxRepeat) mhigh

45− n <- generate $ \depth -> take depth [low .. high]

46− decDepth $ do

47− ps <- replicateM n $ regexSeries' p

48− pure $ mconcat ps

49− PConcat ps -> mconcat <$> mapM regexSeries' ps

50− POr xs -> regexSeries' =<< (generate $ \depth -> take depth xs)

51− PDot _ -> do

52− x <- generate $ \depth -> take depth $ notChars []

53− pure $ singleton x

54− PEscape {..} -> do

55− x <- generate $ \depth -> take depth $ expandEscape getPatternChar

56− pure $ singleton x

57− PCarat _ -> pure mempty

58− PDollar _ -> pure mempty

59− _ -> pure mempty

60− where

61− notChars = ([' ' .. '~'] \\)

62− expandEscape ch =

63− case ch of

64− 'n' -> "\n"

65− 't' -> "\t"

66− 'r' -> "\r"

67− 'f' -> "\f"

68− 'a' -> "\a"

69− 'e' -> "\ESC"

70− 'd' -> ['0' .. '9']

71− 'w' -> ['0' .. '9'] ++ '_' : ['a' .. 'z'] ++ ['A' .. 'Z']

72− 's' -> "\9\32"

73− 'D' -> notChars $ ['0' .. '9']

74− 'W' -> notChars $ ['0' .. '9'] ++ '_' : ['a' .. 'z'] ++ ['A' .. 'Z']

75− 'S' -> notChars "\9\32"

76− ch' -> [ch']

src/Data/Schematic/Helpers.hsdeleted−59

@@ -1,59 +0,0 @@

1−module Data.Schematic.Helpers where

2−

3−import Data.Schematic.Schema

4−import GHC.TypeLits

5−

6−

7−type UUIDRegex =

8− 'TRegex "[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}"

9−

10−type IsUUID = '[UUIDRegex]

11−

12−-- [ "1985-04-12T23:20:50.52Z"

13−-- , "1996-12-19T16:39:57-08:00"

14−-- , "1990-12-31T23:59:60Z"

15−-- , "1990-12-31T15:59:60-08:00"

16−-- , "1937-01-01T12:00:27.87+00:20"

17−-- ]

18−

19−-- components

20−type ISO8601Date = "[1-9][0-9]{3}-(0[1-9]|1[0-2])-([0-2][0-9]|3[0-1])"

21−

22−type ISO8601Time = "([0-1][0-9]|2[0-3]):[0-5][0-9]:[0-5][0-9]"

23−

24−type ISO8601DateTime =

25− AppendSymbol

26− ISO8601Date

27− (AppendSymbol "(T" (AppendSymbol ISO8601Time ")?"))

28−

29−type ISO8601UTC = "(Z|\\+00:00)"

30−

31−type ISO8601DateTimeUTC =

32− AppendSymbol ISO8601Date (AppendSymbol "T" (AppendSymbol ISO8601Time ISO8601UTC))

33−

34−type ISO8601TZ = "\\+[0-1][0-9]:[0-6][0-9]"

35−

36−type ISO8601DateTimeZoned =

37− AppendSymbol ISO8601Date (AppendSymbol "T" (AppendSymbol ISO8601Time ISO8601TZ))

38−

39−-- regexes

40−type ISO8601DateRegex = 'TRegex ISO8601Date

41−

42−type ISO8601TimeRegex = 'TRegex ISO8601Time

43−

44−type ISO8601DateTimeRegex = 'TRegex ISO8601DateTime

45−

46−type ISO8601DateTimeRegexUTC = 'TRegex ISO8601DateTimeUTC

47−

48−type ISO8601DateTimeRegexZoned = 'TRegex ISO8601DateTimeZoned

49−

50−-- constraints

51−type IsDate = '[ISO8601DateRegex]

52−

53−type IsTime = '[ISO8601TimeRegex]

54−

55−type IsDateTime = '[ISO8601DateTimeRegex]

56−

57−type IsZonedDateTime = '[ISO8601DateTimeRegexZoned]

58−

59−type IsUTCDateTime = '[ISO8601DateTimeRegexUTC]

src/Data/Schematic/Instances.hs−4

@@ -4,7 +4,6 @@

44module Data.Schematic.Instances where

66import Data.Scientific

7−import Data.Text (Text, pack)

87import Data.Vector as V

98import Data.Vinyl

109import Test.SmallCheck.Series

@@ -22,6 +21,3 @@ instance Serial m a => Serial m (V.Vector a) where

2221

2322instance Monad m => Serial m Scientific where

2423 series = scientific <$> series <*> series

25−

26−instance Monad m => Serial m Text where

27− series = pack <$> series

src/Data/Schematic/JsonSchema.hsdeleted−124

@@ -1,124 +0,0 @@

1−{-# LANGUAGE AllowAmbiguousTypes #-}

2−{-# LANGUAGE RecordWildCards #-}

3−{-# LANGUAGE OverloadedLabels #-}

4−{-# LANGUAGE TemplateHaskell #-}

5−

6−module Data.Schematic.JsonSchema

7− ( toJsonSchema

8− , toJsonSchema'

9− ) where

10−

11−import Control.Monad.State.Strict

12−import Data.Aeson as J

13−import Data.Foldable as F

14−import Data.HashMap.Strict as H

15−import Data.List as L

16−import Data.List.NonEmpty as NE

17−import Data.Schematic.Schema as S

18−import Data.Set as Set

19−import Data.Singletons

20−import Data.Text

21−import Data.Traversable

22−import JSONSchema.Draft4.Schema as D4

23−import JSONSchema.Validator.Draft4 as D4

24−

25−

26−draft4 :: Text

27−draft4 = "http://json-schema.org/draft-04/schema#"

28−

29−textConstraint :: DemotedTextConstraint -> State D4.Schema ()

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

31− { _schemaMinLength = pure $ fromIntegral n

32− , _schemaMaxLength = pure $ fromIntegral n }

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

34− { _schemaMaxLength = pure . fromIntegral $ n }

35−textConstraint (DTLt n) =

36− 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 }

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

41− { _schemaMinLength = pure . fromIntegral $ n }

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

43−textConstraint (DTEnum ss) =

44− let ss' = if F.length ss == 0 then [] else NE.fromList $ J.String <$> ss

45− in modify $ \s -> s { _schemaEnum = pure ss' }

46−

47−numberConstraint :: DemotedNumberConstraint -> State D4.Schema ()

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

49− { _schemaMaximum = pure . fromIntegral $ n }

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

51− { _schemaMaximum = pure . fromIntegral $ n

52− , _schemaExclusiveMaximum = pure True }

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

54− { _schemaMinimum = pure . fromIntegral $ n

55− , _schemaExclusiveMinimum = pure True }

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

57− { _schemaMinimum = pure . fromIntegral $ n }

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

59− { _schemaMinimum = pure $ fromIntegral n

60− , _schemaMaximum = pure $ fromIntegral n }

61−

62−arrayConstraint :: 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 }

75−

76−toJsonSchema

77− :: forall proxy schema

78− . SingI schema

79− => proxy (schema :: S.Schema)

80− -> Maybe D4.Schema

81−toJsonSchema _ = do

82− js <- toJsonSchema' $ fromSing (sing :: Sing schema)

83− pure $ js { _schemaVersion = pure draft4 }

84−

85−toJsonSchema'

86− :: DemotedSchema

87− -> Maybe D4.Schema

88−toJsonSchema' = \case

89− DSchemaText tcs ->

90− pure $ execState (traverse_ textConstraint tcs) $ emptySchema

91− { _schemaType = pure $ TypeValidatorString D4.SchemaString }

92− DSchemaNumber ncs ->

93− pure $ execState (traverse_ numberConstraint ncs) $ emptySchema

94− { _schemaType = pure $ TypeValidatorString D4.SchemaNumber }

95− DSchemaBoolean -> pure $ emptySchema

96− { _schemaType = pure $ TypeValidatorString D4.SchemaBoolean }

97− DSchemaObject objs -> do

98− res <- for objs $ \(n,s) -> do

99− s' <- toJsonSchema' s

100− pure (n, s')

101− let

102− nonOpt = \case

103− (_, DSchemaOptional _) -> False

104− _ -> True

105− pure $ emptySchema

106− { _schemaType = pure $ TypeValidatorString D4.SchemaObject

107− , _schemaRequired = pure $ Set.fromList $ fst <$> L.filter nonOpt objs

108− , _schemaProperties = pure $ H.fromList res }

109− DSchemaArray acs sch -> do

110− res <- toJsonSchema' sch

111− pure $ execState (traverse_ arrayConstraint acs) $ emptySchema

112− { _schemaType = pure $ TypeValidatorString D4.SchemaArray

113− , _schemaItems = pure $ ItemsObject res }

114− DSchemaNull -> pure $ emptySchema

115− { _schemaType = pure $ TypeValidatorString D4.SchemaNull }

116− DSchemaOptional sch -> do

117− snull <- toJsonSchema' DSchemaNull

118− sres <- toJsonSchema' sch

119− pure $ emptySchema { _schemaOneOf = pure (snull :| [sres]) }

120− DSchemaUnion sch -> do

121− schemaUnion <- traverse toJsonSchema' sch >>= \case

122− [] -> Nothing

123− x -> Just x

124− pure $ emptySchema { _schemaAnyOf = pure $ NE.fromList schemaUnion }

src/Data/Schematic/Lens.hsdeleted−207

@@ -1,207 +0,0 @@

1−{-# LANGUAGE UndecidableSuperClasses #-}

2−{-# LANGUAGE GeneralizedNewtypeDeriving #-}

3−{-# LANGUAGE AllowAmbiguousTypes #-}

4−{-# LANGUAGE InstanceSigs #-}

5−

6−module Data.Schematic.Lens

7− ( FIndex

8− , FElem(..)

9− , FImage

10− , FSubset(..)

11− , obj

12− , arr

13− , uni

14− , txt

15− , num

16− , opt

17− , bln

18− , textRepr

19− , numberRepr

20− , boolRepr

21− , arrayRepr

22− , objectRepr

23− , optionalRepr

24− ) where

25−

26−import Data.Profunctor

27−import Data.Schematic.Schema

28−import Data.Scientific

29−import Data.Singletons

30−import Data.Text

31−import Data.Union

32−import Data.Vector as V

33−import Data.Vinyl

34−import Data.Vinyl.Functor

35−import Data.Vinyl.TypeLevel (Nat(..))

36−import GHC.TypeLits (Symbol, KnownSymbol)

37−

38−

39−-- | A partial relation that gives the index of a value in a list.

40−type family FIndex (r :: Symbol) (rs :: [(Symbol, Schema)]) :: Nat where

41− FIndex r ( '(r, s) ': rs) = 'Z

42− FIndex r ( s ': rs) = 'S (FIndex r rs)

43−

44−type Flens fn f g rs i

45− = Functor g

46− => (f '(fn, (ByField fn rs i)) -> g (f '(fn, (ByField fn rs i))))

47− -> Rec f rs

48− -> g (Rec f rs)

49−

50−type FGetter fn f rs i = Rec f rs -> f '(fn, (ByField fn rs i))

51−

52−class i ~ FIndex fn rs => FElem (fn :: Symbol) (rs :: [(Symbol, Schema)]) (i :: Nat) where

53− type ByField fn rs i :: Schema

54− flens :: Flens fn f g rs i

55−

56− -- | For Vinyl users who are not using the @lens@ package, we provide a getter.

57− fget :: FGetter fn f rs i

58−

59− -- | For Vinyl users who are not using the @lens@ package, we also provide a

60− -- setter. In general, it will be unambiguous what field is being written to,

61− -- and so we do not take a proxy argument here.

62− fput

63− :: f '(fn, ByField fn rs i)

64− -> Rec f rs

65− -> Rec f rs

66−

67−instance FElem fn ('(fn, r) ': rs) 'Z where

68− type ByField fn ('(fn, r) ': rs) 'Z = r

69−

70− flens f (x :& xs) = fmap (:& xs) (f x)

71− {-# INLINE flens #-}

72−

73− fget = getConst . flens Const

74− {-# INLINE fget #-}

75−

76− fput y = getIdentity . flens (\_ -> Identity y)

77− {-# INLINE fput #-}

78−

79−instance (FIndex r (s ': rs) ~ 'S i, FElem r rs i) => FElem r (s ': rs) ('S i) where

80− type ByField r (s ': rs) ('S i) = ByField r rs i

81−

82− flens f (x :& xs) = fmap (x :&) (flens f xs)

83− {-# INLINE flens #-}

84−

85− fget = getConst . flens Const

86− {-# INLINE fget #-}

87−

88− fput y = getIdentity . flens (\_ -> Identity y)

89− {-# INLINE fput #-}

90−

91−-- This is an internal convenience helpers stolen from the @lens@ library.

92−lens

93− :: Functor f

94− => (t -> s)

95− -> (t -> a -> b)

96− -> (s -> f a)

97− -> t

98− -> f b

99−lens sa sbt afb s = fmap (sbt s) $ afb (sa s)

100−{-# INLINE lens #-}

101−

102−type Iso s t a b = forall p f. (Profunctor p, Functor f) => p a (f b) -> p s (f t)

103−

104−type Iso' s a = Iso s s a a

105−

106−iso

107− :: (s -> a) -> (b -> t)

108− -> Iso s t a b

109−iso sa bt = dimap sa (fmap bt)

110−{-# INLINE iso #-}

111−

112−-- | A partial relation that gives the indices of a sublist in a larger list.

113−type family FImage (rs :: [(Symbol, Schema)]) (ss :: [(Symbol, Schema)]) :: [Nat] where

114− FImage '[] ss = '[]

115− FImage ('(fn,s) ': rs) ss = FIndex fn ss ': FImage rs ss

116−

117−class is ~ FImage rs ss

118− => FSubset (rs :: [(Symbol, Schema)]) (ss :: [(Symbol, Schema)]) is where

119− -- | This is a lens into a slice of the larger record. Morally, we have:

120− --

121− -- > fsubset :: Lens' (Rec FieldRepr ss) (Rec FieldRepr rs)

122− fsubset

123− :: Functor g

124− => (Rec f rs -> g (Rec f rs))

125− -> Rec f ss

126− -> g (Rec f ss)

127−

128− -- | The getter of the 'fsubset' lens is 'fcast', which takes a larger record

129− -- to a smaller one by forgetting fields.

130− fcast

131− :: Rec f ss

132− -> Rec f rs

133− fcast = getConst . fsubset Const

134− {-# INLINE fcast #-}

135−

136− -- | The setter of the 'fsubset' lens is 'freplace', which allows a slice of

137− -- a record to be replaced with different values.

138− freplace

139− :: Rec f rs

140− -> Rec f ss

141− -> Rec f ss

142− freplace rs = getIdentity . fsubset (\_ -> Identity rs)

143− {-# INLINE freplace #-}

144−

145−instance FSubset '[] ss '[] where

146− fsubset = lens (const RNil) const

147−

148−instance

149− ( ByField fn ss i ~ s

150− , FElem fn ss i

151− , FSubset rs ss is) => FSubset ( '(fn,s) ': rs) ss (i ': is) where

152− fsubset = lens (\ss -> fget @fn ss :& fcast ss) set

153− where

154− set :: Rec f ss -> Rec f ( '(fn,s) ': rs) -> Rec f ss

155− set ss (r :& rs) = fput r $ freplace rs ss

156−

157−-- A bunch of @Iso@morphisms

158−textRepr

159− :: (KnownSymbol fn, SingI cs)

160− => Iso' (FieldRepr '(fn, ('SchemaText cs))) Text

161−textRepr = iso (\(FieldRepr (ReprText t)) -> t) (FieldRepr . ReprText)

162−

163−numberRepr

164− :: (KnownSymbol fn, SingI cs)

165− => Iso' (FieldRepr '(fn, ('SchemaNumber cs))) Scientific

166−numberRepr = iso (\(FieldRepr (ReprNumber n)) -> n) (FieldRepr . ReprNumber)

167−

168−boolRepr

169− :: (KnownSymbol fn)

170− => Iso' (FieldRepr '(fn, 'SchemaBoolean)) Bool

171−boolRepr = iso (\(FieldRepr (ReprBoolean b)) -> b) (FieldRepr . ReprBoolean)

172−

173−arrayRepr

174− :: (KnownSymbol fn, SingI cs, SingI schema)

175− => Iso' (FieldRepr '(fn, ('SchemaArray cs schema))) (V.Vector (JsonRepr schema))

176−arrayRepr = iso (\(FieldRepr (ReprArray a)) -> a) (FieldRepr . ReprArray)

177−

178−objectRepr

179− :: (KnownSymbol fn, SingI fields)

180− => Iso' (FieldRepr '(fn, ('SchemaObject fields))) (Rec FieldRepr fields)

181−objectRepr = iso (\(FieldRepr (ReprObject o)) -> o) (FieldRepr . ReprObject)

182−

183−optionalRepr

184− :: (KnownSymbol fn, SingI schema)

185− => Iso' (FieldRepr '(fn, ('SchemaOptional schema))) (Maybe (JsonRepr schema))

186−optionalRepr = iso (\(FieldRepr (ReprOptional r)) -> r) (FieldRepr . ReprOptional)

187−

188−obj :: Iso' (JsonRepr ('SchemaObject fields)) (Rec FieldRepr fields)

189−obj = iso (\(ReprObject r) -> r) ReprObject

190−

191−arr :: Iso' (JsonRepr ('SchemaArray cs schema)) (V.Vector (JsonRepr schema))

192−arr = iso (\(ReprArray r) -> r) ReprArray

193−

194−uni :: Iso' (JsonRepr ('SchemaUnion (h ': tl))) (Union JsonRepr (h ': tl))

195−uni = iso (\(ReprUnion u) -> u) ReprUnion

196−

197−txt :: Iso' (JsonRepr ('SchemaText cs)) Text

198−txt = iso (\(ReprText t) -> t) ReprText

199−

200−num :: Iso' (JsonRepr ('SchemaNumber cs)) Scientific

201−num = iso (\(ReprNumber t) -> t) ReprNumber

202−

203−bln :: Iso' (JsonRepr 'SchemaBoolean) Bool

204−bln = iso (\(ReprBoolean b) -> b) ReprBoolean

205−

206−opt :: Iso' (JsonRepr ('SchemaOptional schema)) (Maybe (JsonRepr schema))

207−opt = iso (\(ReprOptional o) -> o) ReprOptional

src/Data/Schematic/Migration.hs+27−56

@@ -1,19 +1,14 @@

11{-# LANGUAGE AllowAmbiguousTypes #-}

2−{-# LANGUAGE CPP #-}

3−{-# LANGUAGE TemplateHaskell #-}

2+{-# LANGUAGE TemplateHaskell #-}

54module Data.Schematic.Migration where

76import Data.Kind

8−import Data.Schematic.DSL

9−import Data.Schematic.Lens

107import Data.Schematic.Path

118import Data.Schematic.Schema

12−import Data.Singletons.Prelude hiding ((:.), All)

9+import Data.Singletons.Prelude hiding (All)

1310import Data.Singletons.TypeLits

14−import Data.Tagged

15−import Data.Vinyl

16−import Data.Vinyl.Functor

11+-- import Data.Vinyl hiding (Dict)

1712

1813

1914data Path

@@ -21,7 +16,7 @@ data Path

2116 | PTraverse -- traverse into the array

2217

2318data instance Sing (p :: Path) where

24− SPKey :: Sing s -> Sing ('PKey s)

19+ SPKey :: KnownSymbol s => Sing s -> Sing ('PKey s)

2520 SPTraverse :: Sing 'PTraverse

2621

2722instance KnownSymbol s => SingI ('PKey s) where

@@ -43,8 +38,8 @@ type family SchemaByKey (fs :: [(Symbol, Schema)]) (s :: Symbol) :: Schema where

4338 SchemaByKey ( '(a, s) ': tl) fn = SchemaByKey tl fn

4439

4540type family DeleteKey (acc :: [(Symbol, Schema)]) (fn :: Symbol) (fs :: [(Symbol, Schema)]) :: [(Symbol, Schema)] where

46− DeleteKey acc fn ('(fn, a) ': tl) = acc ++ tl

47− DeleteKey acc fn (fna ': tl) = acc ++ (fna ': tl)

41+ DeleteKey acc fn ('(fn, a) ': tl) = acc :++ tl

42+ DeleteKey acc fn (fna ': tl) = acc :++ (fna ': tl)

4843

4944type family UpdateKey

5045 (fn :: Symbol)

@@ -97,8 +92,7 @@ type family ElemOf (e :: k) (l :: [(a,k)]) :: Constraint where

9792type family AllVersions (vd :: Versioned) :: [(Revision, Schema)] where

9893 AllVersions ('Versioned s ms) = Reverse (AllVersions' '[ '("initial", s) ] ms)

9994

100−type family AllVersions' (acc :: [(Revision, Schema)]) (ms :: [Migration])

101− = (r :: [(Revision, Schema)]) where

95+type family AllVersions' (acc :: [(Revision, Schema)]) (ms :: [Migration]) = (r :: [(Revision, Schema)]) where

10296 AllVersions' acc '[] = acc

10397 AllVersions' ( '(rh, sh) ': tl ) (m ': ms) =

10498 AllVersions' ( '(rh, sh) ': ApplyMigration m sh ': tl ) ms

@@ -106,15 +100,19 @@ type family AllVersions' (acc :: [(Revision, Schema)]) (ms :: [Migration])

106100type family TopVersion (rs :: [(Revision, Schema)]) :: Schema where

107101 TopVersion ( '(rh, sh) ': tl) = sh

108102

103+class MigrateSchema (a :: Schema) (b :: Schema) where

104+ migrate :: JsonRepr a -> JsonRepr b

105+

109106data Action = AddKey Symbol Schema | Update Schema | DeleteKey Symbol

110107

111108data instance Sing (a :: Action) where

112109 SAddKey

113− :: Sing n

110+ :: (SingI n, SingI s)

111+ => Sing n

114112 -> Sing s

115113 -> Sing ('AddKey n s)

116− SUpdate :: Sing s -> Sing ('Update s)

117− SDeleteKey :: Sing s -> Sing ('DeleteKey s)

114+ SUpdate :: (SingI s) => Sing s -> Sing ('Update s)

115+ SDeleteKey :: KnownSymbol s => Sing s -> Sing ('DeleteKey s)

118116

119117-- | User-supplied atomic difference between schemas.

120118-- Migrations can consists of many differences.

@@ -122,7 +120,8 @@ data Diff = Diff [Path] Action

122120

123121data instance Sing (diff :: Diff) where

124122 SDiff

125− :: Sing (jp :: [Path])

123+ :: (SingI jp, SingI a)

124+ => Sing (jp :: [Path])

126125 -> Sing (a :: Action)

127126 -> Sing ('Diff jp a)

128127

@@ -133,7 +132,8 @@ data Migration = Migration Revision [Diff]

133132

134133data instance Sing (m :: Migration) where

135134 SMigration

136− :: Sing r

135+ :: (KnownSymbol r, SingI ds)

136+ => Sing r

137137 -> Sing ds

138138 -> Sing ('Migration r ds)

139139

@@ -141,47 +141,18 @@ data Versioned = Versioned Schema [Migration]

141141

142142data instance Sing (v :: Versioned) where

143143 SVersioned

144− :: Sing (s :: Schema) -- base version

144+ :: (SingI s, SingI ms)

145+ => Sing (s :: Schema) -- base version

145146 -> Sing (ms :: [Migration]) -- a bunch of migrations

146147 -> Sing ('Versioned s ms)

147148

148−type DataMigration s m h = Tagged s (JsonRepr h -> m (JsonRepr s))

149−

150−data MList :: (Type -> Type) -> [Schema] -> Type where

151− MNil :: (Monad m, SingI s, TopLevel s) => MList m '[s]

149+data MList :: [Schema] -> Type where

150+ MNil :: (SingI s, TopLevel s) => MList '[s]

152151 (:&&)

153− :: (TopLevel s, SingI s)

154− => DataMigration s m h

155− -> MList m (h ': tl)

156− -> MList m (s ': h ': tl)

152+ :: (SingI s, TopLevel s)

153+ => proxy s

154+ -> (JsonRepr h -> JsonRepr s)

155+ -> MList (h ': tl)

156+ -> MList (s ': h ': tl)

157157

158158infixr 7 :&&

159−

160−#if MIN_VERSION_base(4,12,0)

161−migrateObject

162− :: forall m fs fh. (FSubset fs fs (FImage fs fs), Monad m, RMap fh, RMap fs)

163− => (Rec (Tagged fs :. FieldRepr) fh -> m (Rec (Tagged fs :. FieldRepr) fs))

164− -> Tagged ('SchemaObject fs) (JsonRepr ('SchemaObject fh) -> m (JsonRepr ('SchemaObject fs)))

165−#else

166−migrateObject

167− :: forall m fs fh. (FSubset fs fs (FImage fs fs), Monad m)

168− => (Rec (Tagged fs :. FieldRepr) fh -> m (Rec (Tagged fs :. FieldRepr) fs))

169− -> Tagged ('SchemaObject fs) (JsonRepr ('SchemaObject fh) -> m (JsonRepr ('SchemaObject fs)))

170−#endif

171−migrateObject f = Tagged $ \(ReprObject r) -> do

172− res <- f $ rmap (Compose . Tagged) r

173− pure $ withRepr @('SchemaObject fs) res

174−

175−shrinkObject

176− :: forall rs ss m

177− . ( Monad m, FSubset rs ss (FImage rs ss) )

178− => Tagged

179− ('SchemaObject rs)

180− (JsonRepr ('SchemaObject ss) -> m (JsonRepr ('SchemaObject rs)))

181−shrinkObject = Tagged $ \(ReprObject r) -> pure $ ReprObject $ fcast r

182−

183−type family MapSnd (l :: [(a,k)]) = (r :: [k]) where

184− MapSnd '[] = '[]

185− MapSnd ( '(a, b) ': tl) = b ': MapSnd tl

186−

187−type MigrationList m vs = MList m (MapSnd (AllVersions vs))

src/Data/Schematic/Path.hs+17−6

@@ -1,6 +1,9 @@

11module Data.Schematic.Path where

33import Data.Foldable as F

4+import Data.Monoid

5+import Data.Schematic.Utils

6+import Data.Singletons

47import Data.Singletons.Prelude

58import Data.Singletons.TypeLits

69import Data.Text as T

@@ -9,8 +12,16 @@ import Data.Text as T

912data PathSegment = Key Symbol | Ix Nat

1013

1114data instance Sing (jp :: PathSegment) where

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

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

15+ SKey :: (KnownSymbol k, Known (Sing k)) => Sing (k :: Symbol) -> Sing ('Key k)

16+ SIx :: (KnownNat n, Known (Sing n)) => Sing (n :: Nat) -> Sing ('Ix n)

17+

18+instance (KnownSymbol k, Known (Sing k))

19+ => Known (Sing ('Key k)) where

20+ known = SKey known

21+

22+instance (KnownNat n, Known (Sing n))

23+ => Known (Sing ('Ix n)) where

24+ known = SIx known

1425

1526data DemotedPathSegment = DKey Text | DIx Integer

1627 deriving (Show)

@@ -24,10 +35,10 @@ demotePath = go []

2435 where

2536 go :: [DemotedPathSegment] -> Sing (ps :: [PathSegment]) -> [DemotedPathSegment]

2637 go acc SNil = acc

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

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

38+ go acc (SCons p ps) = go (acc ++ [demote p]) ps

39+ demote :: Sing (ps :: PathSegment) -> DemotedPathSegment

40+ demote (SKey s) = DKey $ T.pack $ symbolVal s

41+ demote (SIx n) = DIx $ natVal n

3142

3243demotedPathToText :: [DemotedPathSegment] -> JSONPath

3344demotedPathToText = JSONPath . F.foldl' renderPathSegment ""

src/Data/Schematic/Schema.hs+87−382

@@ -1,36 +1,35 @@

11{-# LANGUAGE AllowAmbiguousTypes #-}

2−{-# LANGUAGE CPP #-}

3−{-# LANGUAGE OverloadedLists #-}

4−{-# LANGUAGE OverloadedStrings #-}

2+{-# LANGUAGE OverloadedLists #-}

3+{-# LANGUAGE OverloadedStrings #-}

54{-# OPTIONS_GHC -fprint-explicit-kinds #-}

76module Data.Schematic.Schema where

9−import Control.Applicative ((<|>))

10−import Control.Monad

11−import Data.Aeson as J

12−import Data.Aeson.Types as J

13−import Data.HashMap.Strict as H

14−import Data.Kind

15−import Data.Maybe

16−import Data.Schematic.Generator

17−import Data.Schematic.Instances ()

18−import Data.Scientific

19−import Data.Singletons.Prelude.List hiding (All, Union)

20−import Data.Singletons.TH

21−import Data.Singletons.TypeLits

22−import Data.Text as T

23−import Data.Union

24−import Data.Vector as V

25−import Data.Vinyl hiding (Dict)

26−import qualified Data.Vinyl.TypeLevel as V

27−import GHC.Exts

28−import GHC.Generics (Generic)

29−import GHC.TypeLits

30− (SomeNat(..), SomeSymbol(..), someNatVal, someSymbolVal)

31−import Prelude as P

32−import Test.SmallCheck.Series

33−

8+import Control.Applicative

9+import Control.Monad

10+import Data.Aeson as J

11+import Data.Aeson.Types as J

12+import Data.HashMap.Strict as H

13+import Data.Kind

14+import Data.Maybe

15+import Data.Schematic.Instances ()

16+

17+import Data.Scientific

18+import Data.Singletons.Prelude.List hiding (All)

19+import Data.Singletons.TH

20+import Data.Singletons.TypeLits

21+import Data.Text as T

22+import Data.Vector as V

23+import Data.Vinyl hiding (Dict)

24+import Data.Vinyl.TypeLevel hiding (Nat)

25+import GHC.Generics (Generic)

26+import Prelude as P

27+import Test.SmallCheck.Series

28+

29+

30+type family All (c :: k -> Constraint) (s :: [k]) :: Constraint where

31+ All c '[] = ()

32+ All c (a ': as) = (c a, All c as)

3433

3534type family CRepr (s :: Schema) :: Type where

3635 CRepr ('SchemaText cs) = TextConstraint

@@ -40,235 +39,77 @@ type family CRepr (s :: Schema) :: Type where

4039

4140data TextConstraint

4241 = TEq Nat

43− | TLt Nat

4442 | TLe Nat

4543 | TGt Nat

46− | TGe Nat

4744 | TRegex Symbol

4845 | TEnum [Symbol]

4946 deriving (Generic)

5047

51−instance SingKind TextConstraint where

52− type Demote TextConstraint = DemotedTextConstraint

53− fromSing = \case

54− STEq n -> withKnownNat n (DTEq . fromIntegral $ natVal n)

55− STLt n -> withKnownNat n (DTLt . fromIntegral $ natVal n)

56− STLe n -> withKnownNat n (DTLe . fromIntegral $ natVal n)

57− STGt n -> withKnownNat n (DTGt . fromIntegral $ natVal n)

58− STGe n -> withKnownNat n (DTGe . fromIntegral $ natVal n)

59− STRegex s -> withKnownSymbol s (DTRegex $ T.pack $ symbolVal s)

60− STEnum s -> let

61− d :: Sing (s :: [Symbol]) -> [Text]

62− d SNil = []

63− d (SCons ss@SSym fs) = T.pack (symbolVal ss) : d fs

64− in DTEnum $ d s

65− toSing = \case

66− DTEq n -> case someNatVal n of

67− Just (SomeNat (_ :: Proxy n)) -> SomeSing (STEq (SNat :: Sing n))

68− Nothing -> error "Negative singleton nat"

69− DTLt n -> case someNatVal n of

70− Just (SomeNat (_ :: Proxy n)) -> SomeSing (STLt (SNat :: Sing n))

71− Nothing -> error "Negative singleton nat"

72− DTLe n -> case someNatVal n of

73− Just (SomeNat (_ :: Proxy n)) -> SomeSing (STLe (SNat :: Sing n))

74− Nothing -> error "Negative singleton nat"

75− DTGt n -> case someNatVal n of

76− Just (SomeNat (_ :: Proxy n)) -> SomeSing (STGt (SNat :: Sing n))

77− Nothing -> error "Negative singleton nat"

78− DTGe n -> case someNatVal n of

79− Just (SomeNat (_ :: Proxy n)) -> SomeSing (STGe (SNat :: Sing n))

80− Nothing -> error "Negative singleton nat"

81− DTRegex s -> case someSymbolVal (T.unpack s) of

82− SomeSymbol (_ :: Proxy n) -> SomeSing (STRegex (SSym :: Sing n))

83− DTEnum ss -> case toSing ss of

84− SomeSing l -> SomeSing (STEnum l)

85−

86−data DemotedTextConstraint

87− = DTEq Integer

88− | DTLt Integer

89− | DTLe Integer

90− | DTGt Integer

91− | DTGe Integer

92− | DTRegex Text

93− | DTEnum [Text]

94− deriving (Generic, Eq, Show)

95−

9648data instance Sing (tc :: TextConstraint) where

97− STEq :: Sing n -> Sing ('TEq n)

98− STLt :: Sing n -> Sing ('TLt n)

99− STLe :: Sing n -> Sing ('TLe n)

100− STGt :: Sing n -> Sing ('TGt n)

101− STGe :: Sing n -> Sing ('TGe n)

102− STRegex :: Sing s -> Sing ('TRegex s)

103− STEnum :: Sing ss -> Sing ('TEnum ss)

49+ STEq :: (KnownNat n) => Sing n -> Sing ('TEq n)

50+ STLe :: (KnownNat n) => Sing n -> Sing ('TLe n)

51+ STGt :: (KnownNat n) => Sing n -> Sing ('TGt n)

52+ STRegex :: (KnownSymbol s, SingI s) => Sing s -> Sing ('TRegex s)

53+ STEnum :: (All KnownSymbol ss, SingI ss) => Sing ss -> Sing ('TEnum ss)

10454

10555instance (KnownNat n) => SingI ('TEq n) where sing = STEq sing

10656instance (KnownNat n) => SingI ('TGt n) where sing = STGt sing

107−instance (KnownNat n) => SingI ('TGe n) where sing = STGe sing

108−instance (KnownNat n) => SingI ('TLt n) where sing = STLt sing

10957instance (KnownNat n) => SingI ('TLe n) where sing = STLe sing

11058instance (KnownSymbol s, SingI s) => SingI ('TRegex s) where sing = STRegex sing

111−instance (SingI ss) => SingI ('TEnum ss) where sing = STEnum sing

59+instance (All KnownSymbol ss, SingI ss) => SingI ('TEnum ss) where sing = STEnum sing

11260

11361instance Eq (Sing ('TEq n)) where _ == _ = True

114−instance Eq (Sing ('TLt n)) where _ == _ = True

11562instance Eq (Sing ('TLe n)) where _ == _ = True

11663instance Eq (Sing ('TGt n)) where _ == _ = True

117−instance Eq (Sing ('TGe n)) where _ == _ = True

11864instance Eq (Sing ('TRegex t)) where _ == _ = True

11965instance Eq (Sing ('TEnum ss)) where _ == _ = True

12066

12167data NumberConstraint

12268 = NLe Nat

123− | NLt Nat

12469 | NGt Nat

125− | NGe Nat

12670 | NEq Nat

12771 deriving (Generic)

12872

129−data DemotedNumberConstraint

130− = DNLe Integer

131− | DNLt Integer

132− | DNGt Integer

133− | DNGe Integer

134− | DNEq Integer

135− deriving (Generic, Eq, Show)

136−

13773data instance Sing (nc :: NumberConstraint) where

138− SNEq :: Sing n -> Sing ('NEq n)

139− SNGt :: Sing n -> Sing ('NGt n)

140− SNGe :: Sing n -> Sing ('NGe n)

141− SNLt :: Sing n -> Sing ('NLt n)

142− SNLe :: Sing n -> Sing ('NLe n)

74+ SNEq :: KnownNat n => Sing n -> Sing ('NEq n)

75+ SNGt :: KnownNat n => Sing n -> Sing ('NGt n)

76+ SNLe :: KnownNat n => Sing n -> Sing ('NLe n)

14377

14478instance KnownNat n => SingI ('NEq n) where sing = SNEq sing

14579instance KnownNat n => SingI ('NGt n) where sing = SNGt sing

146−instance KnownNat n => SingI ('NGe n) where sing = SNGe sing

147−instance KnownNat n => SingI ('NLt n) where sing = SNLt sing

14880instance KnownNat n => SingI ('NLe n) where sing = SNLe sing

14981

15082instance Eq (Sing ('NEq n)) where _ == _ = True

151−instance Eq (Sing ('NLt n)) where _ == _ = True

15283instance Eq (Sing ('NLe n)) where _ == _ = True

15384instance Eq (Sing ('NGt n)) where _ == _ = True

154−instance Eq (Sing ('NGe n)) where _ == _ = True

155−

156−instance SingKind NumberConstraint where

157− type Demote NumberConstraint = DemotedNumberConstraint

158− fromSing = \case

159− SNEq n -> withKnownNat n (DNEq . fromIntegral $ natVal n)

160− SNGt n -> withKnownNat n (DNGt . fromIntegral $ natVal n)

161− SNGe n -> withKnownNat n (DNGe . fromIntegral $ natVal n)

162− SNLt n -> withKnownNat n (DNLt . fromIntegral $ natVal n)

163− SNLe n -> withKnownNat n (DNLe . fromIntegral $ natVal n)

164− toSing = \case

165− DNEq n -> case someNatVal n of

166− Just (SomeNat (_ :: Proxy n)) -> SomeSing (SNEq (SNat :: Sing n))

167− Nothing -> error "Negative singleton nat"

168− DNGt n -> case someNatVal n of

169− Just (SomeNat (_ :: Proxy n)) -> SomeSing (SNGt (SNat :: Sing n))

170− Nothing -> error "Negative singleton nat"

171− DNGe n -> case someNatVal n of

172− Just (SomeNat (_ :: Proxy n)) -> SomeSing (SNGe (SNat :: Sing n))

173− Nothing -> error "Negative singleton nat"

174− DNLt n -> case someNatVal n of

175− Just (SomeNat (_ :: Proxy n)) -> SomeSing (SNLt (SNat :: Sing n))

176− Nothing -> error "Negative singleton nat"

177− DNLe n -> case someNatVal n of

178− Just (SomeNat (_ :: Proxy n)) -> SomeSing (SNLe (SNat :: Sing n))

179− Nothing -> error "Negative singleton nat"

18085

18186data ArrayConstraint

18287 = AEq Nat

183− | AGt Nat

184− | AGe Nat

185− | ALt Nat

186− | ALe Nat

18788 deriving (Generic)

18889

189−data DemotedArrayConstraint

190− = DAEq Integer

191− | DAGt Integer

192− | DAGe Integer

193− | DALt Integer

194− | DALe Integer

195− deriving (Generic, Eq, Show)

196−

19790data instance Sing (ac :: ArrayConstraint) where

198− 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)

91+ SAEq :: KnownNat n => Sing n -> Sing ('AEq n)

20392

20493instance 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

20994

21095instance 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

215−

216−instance SingKind ArrayConstraint where

217− type Demote ArrayConstraint = DemotedArrayConstraint

218− fromSing = \case

219− 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)

224− toSing = \case

225− DAEq n -> case someNatVal n of

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

227− 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"

24096

24197data Schema

24298 = SchemaText [TextConstraint]

243− | SchemaBoolean

24499 | SchemaNumber [NumberConstraint]

245100 | SchemaObject [(Symbol, Schema)]

246101 | SchemaArray [ArrayConstraint] Schema

247102 | SchemaNull

248103 | SchemaOptional Schema

249− | SchemaUnion [Schema]

250104 deriving (Generic)

251105

252−data DemotedSchema

253− = DSchemaText [DemotedTextConstraint]

254− | DSchemaNumber [DemotedNumberConstraint]

255− | DSchemaBoolean

256− | DSchemaObject [(Text, DemotedSchema)]

257− | DSchemaArray [DemotedArrayConstraint] DemotedSchema

258− | DSchemaNull

259− | DSchemaOptional DemotedSchema

260− | DSchemaUnion [DemotedSchema]

261− deriving (Generic, Eq, Show)

262−

263106data instance Sing (schema :: Schema) where

264− SSchemaText :: Sing tcs -> Sing ('SchemaText tcs)

265− SSchemaNumber :: Sing ncs -> Sing ('SchemaNumber ncs)

266− SSchemaBoolean :: Sing 'SchemaBoolean

267− SSchemaArray :: Sing acs -> Sing schema -> Sing ('SchemaArray acs schema)

268− SSchemaObject :: Sing fields -> Sing ('SchemaObject fields)

269− SSchemaOptional :: Sing s -> Sing ('SchemaOptional s)

107+ SSchemaText :: SingI tcs => Sing tcs -> Sing ('SchemaText tcs)

108+ SSchemaNumber :: SingI ncs => Sing ncs -> Sing ('SchemaNumber ncs)

109+ SSchemaArray :: (SingI acs, SingI schema) => Sing acs -> Sing schema -> Sing ('SchemaArray acs schema)

110+ SSchemaObject :: SingI fields => Sing fields -> Sing ('SchemaObject fields)

111+ SSchemaOptional :: SingI s => Sing s -> Sing ('SchemaOptional s)

270112 SSchemaNull :: Sing 'SchemaNull

271− SSchemaUnion :: Sing ss -> Sing ('SchemaUnion ss)

272113

273114instance SingI sl => SingI ('SchemaText sl) where

274115 sing = SSchemaText sing

@@ -276,52 +117,19 @@ instance SingI sl => SingI ('SchemaNumber sl) where

276117 sing = SSchemaNumber sing

277118instance SingI 'SchemaNull where

278119 sing = SSchemaNull

279−instance SingI 'SchemaBoolean where

280− sing = SSchemaBoolean

281120instance (SingI ac, SingI s) => SingI ('SchemaArray ac s) where

282121 sing = SSchemaArray sing sing

283122instance SingI stl => SingI ('SchemaObject stl) where

284123 sing = SSchemaObject sing

285124instance SingI s => SingI ('SchemaOptional s) where

286125 sing = SSchemaOptional sing

287−instance SingI s => SingI ('SchemaUnion s) where

288− sing = SSchemaUnion sing

289126

290127instance Eq (Sing ('SchemaText cs)) where _ == _ = True

291128instance Eq (Sing ('SchemaNumber cs)) where _ == _ = True

292129instance Eq (Sing 'SchemaNull) where _ == _ = True

293−instance Eq (Sing 'SchemaBoolean) where _ == _ = True

294130instance Eq (Sing ('SchemaArray as s)) where _ == _ = True

295131instance Eq (Sing ('SchemaObject cs)) where _ == _ = True

296132instance Eq (Sing ('SchemaOptional s)) where _ == _ = True

297−instance Eq (Sing ('SchemaUnion s)) where _ == _ = True

298−

299−instance SingKind Schema where

300− type Demote Schema = DemotedSchema

301− fromSing = \case

302− SSchemaText cs -> DSchemaText $ fromSing cs

303− SSchemaNumber cs -> DSchemaNumber $ fromSing cs

304− SSchemaBoolean -> DSchemaBoolean

305− SSchemaArray cs s -> DSchemaArray (fromSing cs) (fromSing s)

306− SSchemaOptional s -> DSchemaOptional $ fromSing s

307− SSchemaNull -> DSchemaNull

308− SSchemaObject cs -> DSchemaObject $ fromSing cs

309− SSchemaUnion ss -> DSchemaUnion $ fromSing ss

310− toSing = \case

311− DSchemaText cs -> case toSing cs of

312− SomeSing scs -> SomeSing $ SSchemaText scs

313− DSchemaNumber cs -> case toSing cs of

314− SomeSing scs -> SomeSing $ SSchemaNumber scs

315− DSchemaBoolean -> SomeSing $ SSchemaBoolean

316− DSchemaArray cs sch -> case (toSing cs, toSing sch) of

317− (SomeSing scs, SomeSing ssch) -> SomeSing $ SSchemaArray scs ssch

318− DSchemaOptional sch -> case toSing sch of

319− SomeSing ssch -> SomeSing $ SSchemaOptional ssch

320− DSchemaNull -> SomeSing SSchemaNull

321− DSchemaObject cs -> case toSing cs of

322− SomeSing scs -> SomeSing $ SSchemaObject scs

323− DSchemaUnion ss -> case toSing ss of

324− SomeSing sss -> SomeSing $ SSchemaUnion sss

325133

326134data FieldRepr :: (Symbol, Schema) -> Type where

327135 FieldRepr

@@ -329,10 +137,6 @@ data FieldRepr :: (Symbol, Schema) -> Type where

329137 => JsonRepr schema

330138 -> FieldRepr '(name, schema)

331139

332−-- | Forgetful Functor Ufr

333−toJsonRepr :: FieldRepr '(fn, sch) -> JsonRepr sch

334−toJsonRepr (FieldRepr x) = x

335−

336140knownFieldName

337141 :: forall proxy (fieldName :: Symbol) schema

338142 . KnownSymbol fieldName

@@ -359,77 +163,53 @@ instance

359163 => Serial m (FieldRepr '(name, schema)) where

360164 series = FieldRepr <$> series

361165

362−type family USubsets (u :: [k]) :: Constraint where

363− USubsets '[] = ()

364− USubsets (h ': tl) = (USubset tl (h ': tl) (V.RImage tl (h ': tl)), USubsets tl)

365−

366166data JsonRepr :: Schema -> Type where

367167 ReprText :: Text -> JsonRepr ('SchemaText cs)

368168 ReprNumber :: Scientific -> JsonRepr ('SchemaNumber cs)

369− ReprBoolean :: Bool -> JsonRepr 'SchemaBoolean

370169 ReprNull :: JsonRepr 'SchemaNull

371170 ReprArray :: V.Vector (JsonRepr s) -> JsonRepr ('SchemaArray cs s)

372171 ReprObject :: Rec FieldRepr fs -> JsonRepr ('SchemaObject fs)

373172 ReprOptional :: Maybe (JsonRepr s) -> JsonRepr ('SchemaOptional s)

374− ReprUnion :: Union JsonRepr (h ': tl) -> JsonRepr ('SchemaUnion (h ': tl))

375−

376−instance (Monad m, Serial m Text, SingI cs)

377− => Serial m (JsonRepr ('SchemaText cs)) where

378− series = decDepth $ fmap ReprText $ textSeries $ fromSing (sing :: Sing cs)

379−

380−instance (Monad m, Serial m Scientific, SingI cs)

381− => Serial m (JsonRepr ('SchemaNumber cs)) where

382− series = decDepth $ fmap ReprNumber

383− $ numberSeries $ fromSing (sing :: Sing cs)

384−

385−instance Monad m => Serial m (JsonRepr 'SchemaNull) where

386− series = cons0 ReprNull

387−

388−instance (Serial m (JsonRepr s), Serial m (V.Vector (JsonRepr s)), SingI cs)

389− => Serial m (JsonRepr ('SchemaArray cs s)) where

390− series = decDepth $ fmap ReprArray

391− $ arraySeries $ fromSing (sing :: Sing cs)

392173

393−instance (Serial m (JsonRepr s))

394− => Serial m (JsonRepr ('SchemaOptional s)) where

395− series = cons1 ReprOptional

396−

397−instance (Monad m, Serial m (Rec FieldRepr fs))

398− => Serial m (JsonRepr ('SchemaObject fs)) where

399− series = cons1 ReprObject

400−

401−-- | Move to the union package

402174instance Show (JsonRepr ('SchemaText cs)) where

403175 show (ReprText t) = "ReprText " P.++ show t

404176

405177instance Show (JsonRepr ('SchemaNumber cs)) where

406178 show (ReprNumber n) = "ReprNumber " P.++ show n

407179

408−instance Show (JsonRepr 'SchemaBoolean) where

409− show (ReprBoolean n) = "ReprBoolean " P.++ show n

410−

411180instance Show (JsonRepr 'SchemaNull) where show _ = "ReprNull"

412181

413182instance Show (JsonRepr s) => Show (JsonRepr ('SchemaArray acs s)) where

414183 show (ReprArray v) = "ReprArray " P.++ show v

415184

416−#if MIN_VERSION_base(4,12,0)

417−instance

418− ( V.RecAll FieldRepr fs Show, RMap fs, ReifyConstraint Show FieldRepr fs

419− , RecordToList fs )

420− => Show (JsonRepr ('SchemaObject fs)) where

185+instance RecAll FieldRepr fs Show => Show (JsonRepr ('SchemaObject fs)) where

421186 show (ReprObject fs) = "ReprObject " P.++ show fs

422−#else

423−instance V.RecAll FieldRepr fs Show => Show (JsonRepr ('SchemaObject fs)) where

424− show (ReprObject fs) = "ReprObject " P.++ show fs

425−#endif

426187

427188instance Show (JsonRepr s) => Show (JsonRepr ('SchemaOptional s)) where

428189 show (ReprOptional s) = "ReprOptional " P.++ show s

429190

430−instance Show (Union JsonRepr (h ': tl))

431− => Show (JsonRepr ('SchemaUnion (h ': tl))) where

432− show (ReprUnion s) = "ReprUnion " P.++ show s

191+instance (Monad m, Serial m Text)

192+ => Serial m (JsonRepr ('SchemaText cs)) where

193+ series = cons1 ReprText

194+

195+instance (Monad m, Serial m Scientific)

196+ => Serial m (JsonRepr ('SchemaNumber cs)) where

197+ series = cons1 ReprNumber

198+

199+instance Monad m => Serial m (JsonRepr 'SchemaNull) where

200+ series = cons0 ReprNull

201+

202+instance (Serial m (V.Vector (JsonRepr s)))

203+ => Serial m (JsonRepr ('SchemaArray cs s)) where

204+ series = cons1 ReprArray

205+

206+instance (Serial m (JsonRepr s))

207+ => Serial m (JsonRepr ('SchemaOptional s)) where

208+ series = cons1 ReprOptional

209+

210+instance (Monad m, Serial m (Rec FieldRepr fs))

211+ => Serial m (JsonRepr ('SchemaObject fs)) where

212+ series = cons1 ReprObject

433213

434214instance Eq (Rec FieldRepr fs) => Eq (JsonRepr ('SchemaObject fs)) where

435215 ReprObject a == ReprObject b = a == b

@@ -440,9 +220,6 @@ instance Eq (JsonRepr ('SchemaText cs)) where

440220instance Eq (JsonRepr ('SchemaNumber cs)) where

441221 ReprNumber a == ReprNumber b = a == b

442222

443−instance Eq (JsonRepr 'SchemaBoolean) where

444− ReprBoolean a == ReprBoolean b = a == b

445−

446223instance Eq (JsonRepr 'SchemaNull) where

447224 ReprNull == ReprNull = True

448225

@@ -452,51 +229,6 @@ instance Eq (JsonRepr s) => Eq (JsonRepr ('SchemaArray as s)) where

452229instance Eq (JsonRepr s) => Eq (JsonRepr ('SchemaOptional s)) where

453230 ReprOptional a == ReprOptional b = a == b

454231

455−instance Eq (Union JsonRepr (h ': tl))

456− => Eq (JsonRepr ('SchemaUnion (h ': tl))) where

457− ReprUnion a == ReprUnion b = a == b

458−

459−instance Ord (Rec FieldRepr fs) => Ord (JsonRepr ('SchemaObject fs)) where

460− ReprObject a `compare` ReprObject b = a `compare` b

461−

462−instance Ord (JsonRepr ('SchemaText cs)) where

463− ReprText a `compare` ReprText b = a `compare` b

464−

465−instance Ord (JsonRepr ('SchemaNumber cs)) where

466− ReprNumber a `compare` ReprNumber b = a `compare` b

467−

468−instance Ord (JsonRepr 'SchemaBoolean) where

469− ReprBoolean a `compare` ReprBoolean b = a `compare` b

470−

471−instance Ord (JsonRepr 'SchemaNull) where

472− compare _ _ = EQ

473−

474−instance Ord (JsonRepr s) => Ord (JsonRepr ('SchemaArray as s)) where

475− ReprArray a `compare` ReprArray b = a `compare` b

476−

477−instance Ord (JsonRepr s) => Ord (JsonRepr ('SchemaOptional s)) where

478− ReprOptional a `compare` ReprOptional b = a `compare` b

479−

480−instance Ord (Union JsonRepr (h ': tl))

481− => Ord (JsonRepr ('SchemaUnion (h ': tl))) where

482− ReprUnion a `compare` ReprUnion b = a `compare` b

483−

484−instance IsList (JsonRepr ('SchemaArray cs s)) where

485− type Item (JsonRepr ('SchemaArray cs s)) = JsonRepr s

486− fromList = ReprArray . GHC.Exts.fromList

487− toList (ReprArray v) = GHC.Exts.toList v

488−

489−instance Num (JsonRepr ('SchemaNumber cs)) where

490− ReprNumber a + ReprNumber b = ReprNumber $ a + b

491− ReprNumber a - ReprNumber b = ReprNumber $ a - b

492− ReprNumber a * ReprNumber b = ReprNumber $ a * b

493− abs (ReprNumber a) = ReprNumber $ abs a

494− signum (ReprNumber a) = ReprNumber $ signum a

495− fromInteger = ReprNumber . fromIntegral

496−

497−instance IsString (JsonRepr ('SchemaText cs)) where

498− fromString = ReprText . fromString

499−

500232fromOptional

501233 :: SingI s

502234 => Sing ('SchemaOptional s)

@@ -504,75 +236,49 @@ fromOptional

504236 -> Parser (Maybe (JsonRepr s))

505237fromOptional _ = parseJSON

506238

507−parseUnion

508− :: FromJSON (JsonRepr ('SchemaUnion ss))

509− => sing (ss :: [Schema])

510− -> Value

511− -> Parser (JsonRepr ('SchemaUnion ss))

512−parseUnion _ val = parseJSON val

513−

514−instance FromJSON (Union JsonRepr '[]) where

515− parseJSON = fail "empty union"

516−

517−instance (SingI a, FromJSON (Union JsonRepr as)) => FromJSON (Union JsonRepr (a ': as)) where

518− parseJSON val = (This <$> parseJSON val)

519− <|> (That <$> (parseJSON val :: Parser (Union JsonRepr as)))

520−

521−instance ToJSON (Union JsonRepr as) where

522− toJSON (This fa) = toJSON fa

523− toJSON (That u) = toJSON u

524−

525239instance SingI schema => J.FromJSON (JsonRepr schema) where

526240 parseJSON value = case sing :: Sing schema of

527− SSchemaText _ -> withText "String" (pure . ReprText) value

528− SSchemaNumber _ -> withScientific "Number" (pure . ReprNumber) value

529− SSchemaBoolean -> ReprBoolean <$> parseJSON value

530− SSchemaNull -> case value of

241+ SSchemaText _ -> withText "String" (pure . ReprText) value

242+ SSchemaNumber _ -> withScientific "Number" (pure . ReprNumber) value

243+ SSchemaNull -> case value of

531244 J.Null -> pure ReprNull

532245 _ -> typeMismatch "Null" value

533− so@(SSchemaOptional s) -> withSingI s $ ReprOptional <$> fromOptional so value

534− SSchemaArray sa sb -> withSingI sa $ withSingI sb

535− $ withArray "Array" (fmap ReprArray . traverse parseJSON) value

536− SSchemaObject fs -> do

246+ so@(SSchemaOptional _) -> ReprOptional <$> fromOptional so value

247+ SSchemaArray _ _ -> withArray "Array" (fmap ReprArray . traverse parseJSON) value

248+ SSchemaObject fs -> do

537249 let

538250 demoteFields :: SList s -> H.HashMap Text J.Value -> Parser (Rec FieldRepr s)

539251 demoteFields SNil _ = pure RNil

540252 demoteFields (SCons (STuple2 (n :: Sing fn) s) tl) h = withKnownSymbol n $ do

541253 let fieldName = T.pack $ symbolVal (Proxy @fn)

542254 fieldRepr <- case s of

543− SSchemaText so -> case H.lookup fieldName h of

544− Just v -> withSingI so $ FieldRepr <$> parseJSON v

545− Nothing -> fail $ "No text field: " P.++ show fieldName

546− SSchemaNumber so -> case H.lookup fieldName h of

547− Just v -> withSingI so $ FieldRepr <$> parseJSON v

548− Nothing -> fail $ "No number field: " P.++ show fieldName

549− SSchemaBoolean -> case H.lookup fieldName h of

255+ SSchemaText _ -> case H.lookup fieldName h of

550256 Just v -> FieldRepr <$> parseJSON v

551− Nothing -> fail $ "No boolean field: " P.++ show fieldName

257+ Nothing -> fail "schematext"

258+ SSchemaNumber _ -> case H.lookup fieldName h of

259+ Just v -> FieldRepr <$> parseJSON v

260+ Nothing -> fail "schemanumber"

552261 SSchemaNull -> case H.lookup fieldName h of

553262 Just v -> FieldRepr <$> parseJSON v

554− Nothing -> fail $ "No null field: " P.++ show fieldName

555− SSchemaArray sa sb -> case H.lookup fieldName h of

556− Just v -> withSingI sa $ withSingI sb $ FieldRepr <$> parseJSON v

557− Nothing -> fail $ "No array field: " P.++ show fieldName

558− SSchemaObject so -> case H.lookup fieldName h of

559− Just v -> withSingI so $ FieldRepr <$> parseJSON v

560− Nothing -> fail $ "No object field" P.++ show fieldName

561− SSchemaOptional so -> case H.lookup fieldName h of

562− Just v -> withSingI so $ FieldRepr <$> parseJSON v

563− Nothing -> withSingI so $ pure $ FieldRepr $ ReprOptional Nothing

564− SSchemaUnion ss -> withSingI ss $ FieldRepr <$> parseUnion ss value

263+ Nothing -> fail "schemanull"

264+ SSchemaArray _ _ -> case H.lookup fieldName h of

265+ Just v -> FieldRepr <$> parseJSON v

266+ Nothing -> fail "schemaarray"

267+ SSchemaObject _ -> case H.lookup fieldName h of

268+ Just v -> FieldRepr <$> parseJSON v

269+ Nothing -> fail "schemaobject"

270+ SSchemaOptional _ -> case H.lookup fieldName h of

271+ Just v -> FieldRepr <$> parseJSON v

272+ Nothing -> fail "schemaoptional"

565273 (fieldRepr :&) <$> demoteFields tl h

566274 ReprObject <$> withObject "Object" (demoteFields fs) value

567− SSchemaUnion ss -> parseUnion ss value

568275

569276instance J.ToJSON (JsonRepr a) where

570277 toJSON ReprNull = J.Null

571− toJSON (ReprBoolean b) = J.Bool b

572278 toJSON (ReprText t) = J.String t

573279 toJSON (ReprNumber n) = J.Number n

574280 toJSON (ReprOptional s) = case s of

575− Just v -> toJSON v

281+ Just v -> toJSON v

576282 Nothing -> J.Null

577283 toJSON (ReprArray v) = J.Array $ toJSON <$> v

578284 toJSON (ReprObject r) = J.Object . H.fromList . fold $ r

@@ -585,7 +291,6 @@ instance J.ToJSON (JsonRepr a) where

585291 fold = \case

586292 RNil -> []

587293 fr@(FieldRepr _) :& tl -> (extract fr) : fold tl

588− toJSON (ReprUnion u) = toJSON u

589294

590295class FalseConstraint a

591296

src/Data/Schematic/Schema.hs-bootdeleted−95

@@ -1,95 +0,0 @@

1−module Data.Schematic.Schema where

2−

3−import Data.Kind

4−import Data.Maybe

5−import Data.Schematic.Instances ()

6−import Data.Scientific

7−import Data.Singletons.TH

8−import Data.Singletons.TypeLits

9−import Data.Text as T

10−import Data.Union

11−import Data.Vector as V

12−import Data.Vinyl hiding (Dict)

13−import Prelude as P

14−

15−data TextConstraint

16− = TEq Nat

17− | TLt Nat

18− | TLe Nat

19− | TGt Nat

20− | TGe Nat

21− | TRegex Symbol

22− | TEnum [Symbol]

23−

24−data DemotedTextConstraint

25− = DTEq Integer

26− | DTLt Integer

27− | DTLe Integer

28− | DTGt Integer

29− | DTGe Integer

30− | DTRegex Text

31− | DTEnum [Text]

32−

33−data NumberConstraint

34− = NLe Nat

35− | NLt Nat

36− | NGt Nat

37− | NGe Nat

38− | NEq Nat

39−

40−data DemotedNumberConstraint

41− = DNLe Integer

42− | DNLt Integer

43− | DNGt Integer

44− | DNGe Integer

45− | DNEq Integer

46−

47−data ArrayConstraint

48− = AEq Nat

49− | AGt Nat

50− | AGe Nat

51− | ALt Nat

52− | ALe Nat

53−

54−data DemotedArrayConstraint

55− = DAEq Integer

56− | DAGt Integer

57− | DAGe Integer

58− | DALt Integer

59− | DALe Integer

60−

61−data Schema

62− = SchemaText [TextConstraint]

63− | SchemaBoolean

64− | SchemaNumber [NumberConstraint]

65− | SchemaObject [(Symbol, Schema)]

66− | SchemaArray [ArrayConstraint] Schema

67− | SchemaNull

68− | SchemaOptional Schema

69− | SchemaUnion [Schema]

70−

71−data DemotedSchema

72− = DSchemaText [DemotedTextConstraint]

73− | DSchemaNumber [DemotedNumberConstraint]

74− | DSchemaBoolean

75− | DSchemaObject [(Text, DemotedSchema)]

76− | DSchemaArray [DemotedArrayConstraint] DemotedSchema

77− | DSchemaNull

78− | DSchemaOptional DemotedSchema

79− | DSchemaUnion [DemotedSchema]

80−

81−data FieldRepr :: (Symbol, Schema) -> Type where

82− FieldRepr

83− :: (SingI schema, KnownSymbol name)

84− => JsonRepr schema

85− -> FieldRepr '(name, schema)

86−

87−data JsonRepr :: Schema -> Type where

88− ReprText :: Text -> JsonRepr ('SchemaText cs)

89− ReprNumber :: Scientific -> JsonRepr ('SchemaNumber cs)

90− ReprBoolean :: Bool -> JsonRepr 'SchemaBoolean

91− ReprNull :: JsonRepr 'SchemaNull

92− ReprArray :: V.Vector (JsonRepr s) -> JsonRepr ('SchemaArray cs s)

93− ReprObject :: Rec FieldRepr fs -> JsonRepr ('SchemaObject fs)

94− ReprOptional :: Maybe (JsonRepr s) -> JsonRepr ('SchemaOptional s)

95− ReprUnion :: Union JsonRepr (h ': tl) -> JsonRepr ('SchemaUnion (h ': tl))

src/Data/Schematic/Utils.hsnew file+42

@@ -0,0 +1,42 @@

1+{-# LANGUAGE AllowAmbiguousTypes #-}

3+module Data.Schematic.Utils where

5+import Data.Proxy

6+import Data.Singletons

7+import Data.Singletons.Prelude

8+import Data.Singletons.TypeLits

9+import Data.Vinyl hiding (Dict)

10+

11+

12+class Known a where

13+ known :: a

14+

15+instance Known (Proxy a) where

16+ known = Proxy

17+

18+instance KnownNat n => Known (Sing n) where

19+ known = SNat

20+

21+instance KnownSymbol s => Known (Sing s) where

22+ known = SSym

23+

24+instance (Known (Sing a), Known (Sing b)) => Known (Sing '(a,b)) where

25+ known = STuple2 known known

26+

27+instance Known (Sing '[]) where known = SNil

28+

29+instance (Known (Sing a), Known (Sing as)) => Known (Sing (a ': as)) where

30+ known = SCons known known

31+

32+instance Known (Rec Sing '[]) where

33+ known = RNil

34+

35+instance (Known (Sing a), Known (Rec Sing tl)) => Known (Rec Sing (a ': tl)) where

36+ known = known :& known

37+

38+data Dict c where

39+ Dict :: c => Dict c

40+

41+instance c => Known (Dict c) where

42+ known = Dict

src/Data/Schematic/Validation.hs+25−153

@@ -2,24 +2,20 @@ module Data.Schematic.Validation where

33import Control.Monad

44import Control.Monad.Validation

5−import Data.Aeson

6−import Data.Aeson.Types

75import Data.Foldable

86import Data.Functor.Identity

97import Data.Monoid

108import Data.Schematic.Path

119import Data.Schematic.Schema

10+import Data.Schematic.Utils ()

1211import Data.Scientific

1312import Data.Singletons.Prelude

1413import Data.Singletons.TypeLits

1514import Data.Text as T

16−import Data.Traversable

17−import Data.Union

1815import Data.Vector as V

1916import Data.Vinyl

20−import Data.Vinyl.TypeLevel

2117import Prelude as P

22−import Text.Regex.TDFA

18+import Text.Regex

2319

2420

2521type Validation a = ValidationT ErrorMap Identity a

@@ -30,11 +26,7 @@ data ParseResult a

3026 = Valid a

3127 | DecodingError Text -- static

3228 | ValidationError ErrorMap -- runtime

33− deriving (Show, Eq, Functor, Foldable, Traversable)

34−

35−instance (TopLevel a, SingI a, FromJSON (JsonRepr a))

36− => FromJSON (ParseResult (JsonRepr a)) where

37− parseJSON = pure . parseAndValidateJson @a

29+ deriving (Show, Eq, Functor)

3830

3931isValid :: ParseResult a -> Bool

4032isValid (Valid _) = True

@@ -56,44 +48,30 @@ validateTextConstraint

5648validateTextConstraint (JSONPath path) t = \case

5749 STEq n -> do

5850 let

59− nlen = withKnownNat n $ natVal n

51+ nlen = natVal n

6052 predicate = nlen == (fromIntegral $ T.length t)

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

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

63− unless predicate warn

64− STLt n -> do

65− let

66− nlen = withKnownNat n $ natVal n

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

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

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

6954 warn = vWarning $ mmSingleton path (pure errMsg)

7055 unless predicate warn

7156 STLe n -> do

7257 let

73− nlen = withKnownNat n $ natVal n

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

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

58+ nlen = natVal n

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

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

7661 warn = vWarning $ mmSingleton path (pure errMsg)

7762 unless predicate warn

7863 STGt n -> do

7964 let

80− nlen = withKnownNat n $ natVal n

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

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

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

84− unless predicate warn

85− STGe n -> do

86− let

87− nlen = withKnownNat n $ natVal n

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

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

65+ nlen = natVal n

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

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

9068 warn = vWarning $ mmSingleton path (pure errMsg)

9169 unless predicate warn

9270 STRegex r -> do

9371 let

94− regex = withKnownSymbol r $ fromSing r

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

96− errMsg = "must match " <> regex

72+ regex = symbolVal r

73+ predicate = maybe False (const True) $ matchRegex (mkRegex regex) (T.unpack t)

74+ errMsg = path <> " must match " <> T.pack (show regex)

9775 warn = vWarning $ mmSingleton path (pure errMsg)

9876 unless predicate warn

9977 STEnum ss -> do

@@ -101,7 +79,7 @@ validateTextConstraint (JSONPath path) t = \case

10179 matching :: Sing (s :: [Symbol]) -> Bool

10280 matching SNil = False

10381 matching (SCons s@SSym fs) = T.pack (symbolVal s) == t || matching fs

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

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

10583 warn = vWarning $ mmSingleton path (pure errMsg)

10684 unless (matching ss) warn

10785

@@ -113,37 +91,23 @@ validateNumberConstraint

11391validateNumberConstraint (JSONPath path) num = \case

11492 SNEq n -> do

11593 let

116− nlen = withKnownNat n $ natVal n

94+ nlen = natVal n

11795 predicate = fromIntegral nlen == num

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

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

11997 warn = vWarning $ mmSingleton path (pure errMsg)

12098 unless predicate warn

12199 SNGt n -> do

122100 let

123− nlen = withKnownNat n $ natVal n

101+ nlen = natVal n

124102 predicate = num > fromIntegral nlen

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

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

127− unless predicate warn

128− SNGe n -> do

129− let

130− nlen = withKnownNat n $ natVal n

131− predicate = num >= fromIntegral nlen

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

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

134− unless predicate warn

135− SNLt n -> do

136− let

137− nlen = withKnownNat n $ natVal n

138− predicate = num < fromIntegral nlen

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

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

140104 warn = vWarning $ mmSingleton path (pure errMsg)

141105 unless predicate warn

142106 SNLe n -> do

143107 let

144− nlen = withKnownNat n $ natVal n

145− predicate = num <= fromIntegral nlen

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

108+ nlen = natVal n

109+ predicate = fromIntegral nlen <= num

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

147111 warn = vWarning $ mmSingleton path (pure errMsg)

148112 unless predicate warn

149113

@@ -155,37 +119,9 @@ validateArrayConstraint

155119validateArrayConstraint (JSONPath path) v = \case

156120 SAEq n -> do

157121 let

158− nlen = withKnownNat n $ natVal n

122+ nlen = natVal n

159123 predicate = nlen == fromIntegral (V.length v)

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

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

162− unless predicate warn

163− SAGt n -> do

164− let

165− nlen = withKnownNat n $ natVal n

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

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

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

169− unless predicate warn

170− SAGe n -> do

171− let

172− nlen = withKnownNat n $ natVal n

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

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

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

176− unless predicate warn

177− SALt n -> do

178− let

179− nlen = withKnownNat n $ natVal n

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

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

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

183− unless predicate warn

184− SALe n -> do

185− let

186− nlen = withKnownNat n $ natVal n

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

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

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

189125 warn = vWarning $ mmSingleton path (pure errMsg)

190126 unless predicate warn

191127

@@ -214,7 +150,6 @@ validateJsonRepr sschema dpath jr = case jr of

214150 process cs

215151 process scs

216152 ReprNull -> pure ()

217− ReprBoolean _ -> pure ()

218153 ReprArray v -> case sschema of

219154 SSchemaArray acs s -> do

220155 let

@@ -234,72 +169,9 @@ validateJsonRepr sschema dpath jr = case jr of

234169 ReprObject fs -> case sschema of

235170 SSchemaObject _ -> go fs

236171 where

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

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

238173 go RNil = pure ()

239174 go (f@(FieldRepr d) :& ftl) = do

240175 let newPath = dpath <> [DKey (knownFieldName f)]

241176 validateJsonRepr (knownFieldSchema f) newPath d

242177 go ftl

243− ReprUnion _ -> pure () -- FIXME

244− -- case sschema of

245− -- SSchemaUnion ss -> case ss of

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

247− -- Nothing -> case urestrict u of

248− -- Nothing ->

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

250− -- Just x -> do

251− -- let

252− -- JSONPath path = demotedPathToText dpath

253− -- case stl of

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

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

256− -- SCons s' stl' ->

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

258− -- $ toUnion (SCons s' stl') x

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

260−

261−-- subUnion

262−-- :: Sing (s ': stl)

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

264−-- => Union f (s ': stl)

265−-- -> Maybe (Union f stl) )

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

267−

268−-- withUSubset

269−-- :: Sing (s ': stl)

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

271−-- -> Maybe (Union f stl)

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

273−

274−toUnion

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

276− => Sing (s ': ss)

277− -> Union JsonRepr s'

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

279−toUnion _ = ReprUnion . urelax

280−

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

282−umatch' _ u = umatch u

283−

284−parseAndValidateJson

285− :: forall schema

286− . (FromJSON (JsonRepr schema), TopLevel schema, SingI schema)

287− => Value

288− -> ParseResult (JsonRepr schema)

289−parseAndValidateJson v =

290− case parseEither parseJSON v of

291− Left s -> DecodingError $ T.pack s

292− Right jsonRepr ->

293− let

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

295− res = runIdentity . runValidationTEither $ validate

296− in case res of

297− Left em -> ValidationError em

298− Right () -> Valid jsonRepr

299−

300−parseAndValidateJsonBy

301− :: (FromJSON (JsonRepr schema), TopLevel schema, SingI schema)

302− => proxy schema

303− -> Value

304− -> ParseResult (JsonRepr schema)

305−parseAndValidateJsonBy _ = parseAndValidateJson

src/Data/Schematic/Verifier.hsdeleted−5

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

1−module Data.Schematic.Verifier (module X) where

2−

3−import Data.Schematic.Verifier.Array as X

4−import Data.Schematic.Verifier.Number as X

5−import Data.Schematic.Verifier.Text as X

src/Data/Schematic/Verifier/Array.hsdeleted−14

@@ -1,14 +0,0 @@

1−module Data.Schematic.Verifier.Array where

2−

3−import {-# SOURCE #-} Data.Schematic.Schema

4−import Data.Schematic.Verifier.Common

5−

6−data VerifiedArrayConstraint =

7− VAEq Integer

8− deriving (Show)

9−

10−verifyArrayConstraint ::

11− [DemotedArrayConstraint] -> Maybe (Maybe VerifiedArrayConstraint)

12−verifyArrayConstraint cs = do

13− x <- verifyDNEq [x | DAEq x <- cs]

14− pure $ VAEq <$> x

src/Data/Schematic/Verifier/Common.hsdeleted−43

@@ -1,43 +0,0 @@

1−module Data.Schematic.Verifier.Common where

2−

3−import Data.List (nub)

4−

5−simplifyNumberConstraint :: ([Integer] -> Integer) -> [Integer] -> Maybe Integer

6−simplifyNumberConstraint f =

7− \case

8− [] -> Nothing

9− x -> Just $ f x

10−

11−simplifyDNLs :: [Integer] -> Maybe Integer

12−simplifyDNLs = simplifyNumberConstraint minimum

13−

14−simplifyDNGs :: [Integer] -> Maybe Integer

15−simplifyDNGs = simplifyNumberConstraint maximum

16−

17−verifyDNEq :: [Integer] -> Maybe (Maybe Integer)

18−verifyDNEq x =

19− case nub x of

20− [] -> Just Nothing

21− [y] -> Just $ Just y

22− (_:_:_) -> Nothing

23−

24−verify3 :: Maybe Integer -> Maybe Integer -> Maybe Integer -> Maybe ()

25−verify3 (Just x) (Just y) (Just z) =

26− if x < y && y < z

27− then Just ()

28− else Nothing

29−verify3 _ _ _ = Just ()

30−

31−verify2 :: Maybe Integer -> Maybe Integer -> Maybe ()

32−verify2 (Just x) (Just y) =

33− if x < y

34− then Just ()

35− else Nothing

36−verify2 _ _ = Just ()

37−

38−verifyEquations :: Maybe Integer -> Maybe Integer -> Maybe Integer -> Maybe ()

39−verifyEquations mgt meq mlt = do

40− verify3 mgt meq mlt

41− verify2 mgt meq

42− verify2 meq mlt

43− verify2 mgt mlt

src/Data/Schematic/Verifier/Number.hsdeleted−31

@@ -1,31 +0,0 @@

1−module Data.Schematic.Verifier.Number where

2−

3−import {-# SOURCE #-} Data.Schematic.Schema

4−import Data.Schematic.Verifier.Common

5−

6−toStrictNumber :: [DemotedNumberConstraint] -> [DemotedNumberConstraint]

7−toStrictNumber = map f

8− where

9− f (DNLe x) = DNLt (x + 1)

10− f (DNGe x) = DNGt (x - 1)

11− f x = x

12−

13−data VerifiedNumberConstraint

14− = VNEq Integer

15− | VNBounds (Maybe Integer) (Maybe Integer)

16− deriving (Show)

17−

18−verifyNumberConstraints

19− :: [DemotedNumberConstraint]

20− -> Maybe VerifiedNumberConstraint

21−verifyNumberConstraints cs' = do

22− let

23− cs = toStrictNumber cs'

24− mlt = simplifyDNLs [x | DNLt x <- cs]

25− mgt = simplifyDNGs [x | DNGt x <- cs]

26− meq <- verifyDNEq [x | DNEq x <- cs]

27− verifyEquations mgt meq mlt

28− Just $

29− case meq of

30− Just eq -> VNEq eq

31− Nothing -> VNBounds mgt mlt

src/Data/Schematic/Verifier/Text.hsdeleted−121

@@ -1,121 +0,0 @@

1−module Data.Schematic.Verifier.Text where

2−

3−import Control.Monad

4−import Data.Maybe

5−import {-# SOURCE #-} Data.Schematic.Schema

6−import Data.Schematic.Verifier.Common

7−import Data.Text (Text, unpack)

8−import Text.Regex.TDFA.Pattern

9−import Text.Regex.TDFA.ReadRegex (parseRegex)

10−

11−toStrictTextLength :: [DemotedTextConstraint] -> [DemotedTextConstraint]

12−toStrictTextLength = map f

13− where

14− f (DTLe x) = DTLt (x + 1)

15− f (DTGe x) = DTGt (x - 1)

16− f x = x

17−

18−data VerifiedTextConstraint

19− = VTEq Integer

20− | VTBounds (Maybe Integer) (Maybe Integer)

21− | VTRegex Text Integer (Maybe Integer)

22− | VTEnum [Text]

23− deriving (Show)

24−

25−verifyTextLengthConstraints

26− :: [DemotedTextConstraint]

27− -> Maybe (Maybe VerifiedTextConstraint)

28−verifyTextLengthConstraints cs' = do

29− let

30− cs = toStrictTextLength cs'

31− mlt = simplifyDNLs [x | DTLt x <- cs]

32− mgt = simplifyDNGs [x | DTGt x <- cs]

33− meq <- verifyDNEq [x | DTEq x <- cs]

34− verifyEquations mgt meq mlt

35− case all isNothing ([mgt, meq, mlt] :: [Maybe Integer]) of

36− True -> Just Nothing

37− _ ->

38− Just $

39− Just $

40− case meq of

41− Just eq -> VTEq eq

42− Nothing -> VTBounds mgt mlt

43−

44−regexLength :: Text -> Maybe (Int, Maybe Int)

45−regexLength regexp =

46− case parseRegex . unpack $ regexp of

47− Right (p, _) -> Just (minRegexLength p, maxRegexLength p)

48− Left _ -> Nothing

49−

50−minRegexLength :: Pattern -> Int

51−minRegexLength p =

52− case p of

53− PEmpty -> 0

54− PChar {..} -> 1

55− PAny {..} -> 1

56− PAnyNot {..} -> 1

57− PQuest _ -> 0

58− PPlus sch -> minRegexLength $ PBound 1 Nothing sch

59− PStar _ sch -> minRegexLength $ PBound 0 Nothing sch

60− PBound low _ sch -> low * minRegexLength sch

61− PConcat ps -> sum $ fmap minRegexLength ps

62− POr xs -> minimum $ fmap minRegexLength xs

63− PDot _ -> 1

64− PEscape {..} -> 1

65− PCarat _ -> 0

66− PDollar _ -> 0

67− _ -> 0

68−

69−maxRegexLength :: Pattern -> Maybe Int

70−maxRegexLength p =

71− case p of

72− PEmpty -> Just 0

73− PChar _ _ -> Just 1

74− PAny _ _ -> Just 1

75− PAnyNot _ _ -> Just 1

76− PQuest _ -> Just 0

77− PPlus _ -> Nothing

78− PStar _ _ -> Nothing

79− PBound _ mhigh sch -> (*) <$> mhigh <*> maxRegexLength sch

80− PConcat ps -> sum <$> mapM maxRegexLength ps

81− POr xs -> maximum <$> mapM maxRegexLength xs

82− PDot _ -> Just 1

83− PEscape _ _ -> Just 1

84− PCarat _ -> Just 0

85− PDollar _ -> Just 0

86− _ -> Just 0

87−

88−verifyTextRegexConstraint

89− :: [DemotedTextConstraint]

90− -> Maybe (Maybe VerifiedTextConstraint)

91−verifyTextRegexConstraint cs = do

92− let regexps = [x | DTRegex x <- cs]

93− case regexps of

94− [] -> Just Nothing

95− [x] -> do

96− (l, mh) <- regexLength x

97− Just $ Just $ VTRegex x (fromIntegral l) (fromIntegral <$> mh)

98− _ -> Nothing

99−

100−verifyTextEnumConstraint

101− :: [DemotedTextConstraint]

102− -> Maybe (Maybe VerifiedTextConstraint)

103−verifyTextEnumConstraint cs = do

104− let enums = concat [x | DTEnum x <- cs]

105− case enums of

106− [] -> Just Nothing

107− x -> Just $ Just $ VTEnum x

108−

109−verifyTextConstraints

110− :: [DemotedTextConstraint]

111− -> Maybe [VerifiedTextConstraint]

112−verifyTextConstraints cs = do

113− regexp <- verifyTextRegexConstraint cs

114− void $

115− case regexp of

116− Just (VTRegex _ l mh) ->

117− verifyTextLengthConstraints (DTGe l : cs ++ maybeToList (DTLe <$> mh))

118− _ -> pure Nothing

119− lengths <- verifyTextLengthConstraints cs

120− enums <- verifyTextEnumConstraint cs

121− return $ catMaybes [lengths, enums, regexp]

stack-13.7.yamldeleted−5

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

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+53−4

@@ -1,5 +1,54 @@

1−resolver: lts-12.0

1+resolver: lts-8.12

2+#resolver: ghc-8.0.2

4+# User packages to be built.

5+# Various formats can be used as shown in the example below.

6+#

7+# packages:

8+# - some-directory

9+# - https://example.com/foo/bar/baz-0.0.2.tar.gz

10+# - location:

11+# git: https://github.com/commercialhaskell/stack.git

12+# commit: e7b331f14bcffb8367cd58fbfc8b40ec7642100a

13+# - location: https://github.com/commercialhaskell/stack/commit/e7b331f14bcffb8367cd58fbfc8b40ec7642100a

14+# extra-dep: true

15+# subdirs:

16+# - auto-update

17+# - wai

18+#

19+# A package marked 'extra-dep: true' will only be built if demanded by a

20+# non-dependency (i.e. a user package), and its test suites and benchmarks

21+# will not be run. This is useful for tweaking upstream packages.

22+packages:

23+#- location:

24+ #git: https://github.com/typeable/validationt.git

25+ #commit: 24578c9fd408179358c641ee1fff0eb182591f4b

26+- '.'

27+

228extra-deps:

3− - hjsonpointer-1.4.0@rev:0

4− - hjsonschema-1.9.0@rev:0

5− - validationt-0.2.1.0

29+- validationt-0.2.0.0

30+- smallcheck-series-0.6

31+

32+# Override default flag values for local packages and extra-deps

33+flags: {}

34+

35+# Extra package databases containing global packages

36+extra-package-dbs: []

37+

38+# Control whether we use the GHC we find on the path

39+# system-ghc: true

40+#

41+# Require a specific version of stack, using version ranges

42+# require-stack-version: -any # Default

43+# require-stack-version: ">=1.4"

44+#

45+# Override the architecture used by stack, especially useful on Windows

46+# arch: i386

47+# arch: x86_64

48+#

49+# Extra directories used by stack for building

50+# extra-include-dirs: [/path/to/dir]

51+# extra-lib-dirs: [/path/to/dir]

52+#

53+# Allow a newer minor version of GHC than the snapshot specifies

54+# compiler-check: newer-minor

test/HelpersSpec.hsdeleted−124

@@ -1,124 +0,0 @@

1−{-# OPTIONS_GHC -Wno-unticked-promoted-constructors #-}

2−

3−{-# LANGUAGE LambdaCase #-}

4−

5−{-# LANGUAGE DataKinds #-}

6−{-# LANGUAGE TypeApplications #-}

7−{-# LANGUAGE OverloadedStrings #-}

8−

9−module HelpersSpec (spec, main) where

10−

11−import Control.Lens

12−import Data.ByteString.Lazy.Lens

13−import Data.Foldable

14−import Data.Monoid

15−import Data.Schematic

16−import Data.Text as T

17−import Data.Text.Lens

18−import Test.Hspec

19−

20−

21−type UUIDSchema = 'SchemaObject '[ '("uuid", 'SchemaText IsUUID) ]

22−

23−-- | Taken from UUID RFC 4122

24−uuid :: Text

25−uuid = "f81d4fae-7dec-11d0-a765-00a0c91e6bf6"

26−

27−type ISO8601DateSchema = 'SchemaObject '[ '("date", 'SchemaText IsDate) ]

28−

29−iso8601dates :: [Text]

30−iso8601dates = [ "1985-04-12" ]

31−

32−invalidIso8601dates :: [Text]

33−invalidIso8601dates = [ "1999-13-12" ]

34−

35−type ISO8601TimeSchema = 'SchemaObject '[ '("time", 'SchemaText IsTime) ]

36−

37−iso8601times :: [Text]

38−iso8601times =

39− [ "19:23:00"

40− , "00:00:00"

41− , "23:47:12" ]

42−

43−invalidIso8601times :: [Text]

44−invalidIso8601times =

45− [ "00:60:00"

46− , "24:01:02" ]

47−

48−type ISO8601DateTimeSchema = 'SchemaObject '[ '("datetime", 'SchemaText IsDateTime) ]

49−

50−-- | Taken from ISO8601 RFC 3339

51−iso8601datetimes :: [Text]

52−iso8601datetimes =

53− iso8601dates <>

54− [ "1985-04-12T23:20:50.52Z"

55− , "1996-12-19T16:39:57-08:00"

56− , "1990-12-31T23:59:60Z"

57− , "1990-12-31T15:59:60-08:00"

58− , "1937-01-01T12:00:27.87+00:20"

59− ]

60−

61−invalidIso8601datetimes :: [Text]

62−invalidIso8601datetimes =

63− [ "1996-13-129T16:39:57-08:00"

64− , "1990-2-31T23:59:60Z"

65− , "1990-12-32T15:59:70"

66− , "1937-01-1T12::27.87+24:20"

67− ]

68−

69−spec :: Spec

70−spec = do

71− describe "UUID: " $ do

72− it "validates correct UUID" $ do

73− let

74− uuidJson = "{\"uuid\": \"" <> (uuid ^. unpacked . packedChars) <> "\" }"

75− (decodeAndValidateJson uuidJson :: ParseResult (JsonRepr UUIDSchema))

76− `shouldSatisfy` isValid

77−

78− it "fails to validate incorrect UUID" $ do

79− let

80− incorrectJson = "{\"uuid\": \"incorrect\" }"

81− (decodeAndValidateJson incorrectJson :: ParseResult (JsonRepr UUIDSchema))

82− `shouldSatisfy` isValidationError

83−

84− describe "ISO8601 date: " $ do

85− for_ iso8601dates $ \dt -> do

86− it ("validates correct date - " <> dt ^. unpacked) $ do

87− let json = "{\"date\": \"" <> (dt ^. unpacked . packedChars) <> "\" }"

88− (decodeAndValidateJson json :: ParseResult (JsonRepr ISO8601DateSchema))

89− `shouldSatisfy` isValid

90−

91− for_ invalidIso8601dates $ \dt -> do

92− it ("fails to validate incorrect date - " <> dt ^. unpacked) $ do

93− let json = "{\"date\": \"" <> (dt ^. unpacked . packedChars) <> "\" }"

94− (decodeAndValidateJson json :: ParseResult (JsonRepr ISO8601DateSchema))

95− `shouldSatisfy` isValidationError

96−

97− describe "ISO8601 time: " $ do

98− for_ iso8601times $ \dt -> do

99− it ("validates correct time - " <> dt ^. unpacked) $ do

100− let json = "{\"time\": \"" <> (dt ^. unpacked . packedChars) <> "\" }"

101− (decodeAndValidateJson json :: ParseResult (JsonRepr ISO8601TimeSchema))

102− `shouldSatisfy` isValid

103−

104− for_ invalidIso8601times $ \dt -> do

105− it ("fails to validate incorrect time - " <> dt ^. unpacked) $ do

106− let json = "{\"time\": \"" <> (dt ^. unpacked . packedChars) <> "\" }"

107− (decodeAndValidateJson json :: ParseResult (JsonRepr ISO8601TimeSchema))

108− `shouldSatisfy` isValidationError

109−

110− describe "ISO8601 datetime: " $ do

111− for_ iso8601datetimes $ \dt -> do

112− it ("validates correct datetime - " <> dt ^. unpacked) $ do

113− let json = "{\"datetime\": \"" <> (dt ^. unpacked . packedChars) <> "\" }"

114− (decodeAndValidateJson json :: ParseResult (JsonRepr ISO8601DateTimeSchema))

115− `shouldSatisfy` isValid

116−

117− for_ invalidIso8601datetimes $ \dt -> do

118− it ("fails to validate incorrect datetime - " <> dt ^. unpacked) $ do

119− let json = "{\"datetime\": \"" <> (dt ^. unpacked . packedChars) <> "\" }"

120− (decodeAndValidateJson json :: ParseResult (JsonRepr ISO8601DateTimeSchema))

121− `shouldSatisfy` isValidationError

122−

123−main :: IO ()

124−main = hspec spec

test/JsonSchemaSpec.hsdeleted−101

@@ -1,101 +0,0 @@

1−{-# LANGUAGE LambdaCase #-}

2−

3−{-# LANGUAGE DataKinds #-}

4−{-# LANGUAGE TypeApplications #-}

5−{-# LANGUAGE OverloadedLists #-}

6−{-# LANGUAGE OverloadedStrings #-}

7−

8−module JsonSchemaSpec (spec, main) where

9−

10−import Data.Aeson as J

11−import Data.Maybe

12−import Data.Proxy

13−import Data.ByteString.Lazy as B

14−import Data.Schematic

15−import Data.Vinyl

16−import JSONSchema.Draft4 as D4

17−import Test.Hspec

18−

19−

20−type ArraySchema = 'SchemaArray '[ 'AEq 1] ('SchemaNumber '[ 'NGt 10])

21−

22−type ArrayField = '("foo", ArraySchema)

23−

24−type FieldsSchema =

25− '[ ArrayField, '("bar", 'SchemaOptional ('SchemaText '[ 'TEnum '["foo", "bar"]]))]

26−

27−type SchemaExample = 'SchemaObject FieldsSchema

28−

29−exampleData :: JsonRepr SchemaExample

30−exampleData = withRepr @SchemaExample $

31− field @"foo" [ReprNumber 13]

32− :& field @"bar" (pure (ReprText "foo"))

33− :& RNil

34−

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−

56−spec :: Spec

57−spec = do

58− it "validates simple schema" $ do

59− let schema = D4.SchemaWithURI (fromJust $ toJsonSchema (Proxy @SchemaExample)) Nothing

60− fetchHTTPAndValidate schema (toJSON exampleData) >>= \case

61− Left _ -> fail "failed to validate test example"

62− 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 ()

99−

100−main :: IO ()

101−main = hspec spec

test/LensSpec.hsdeleted−318

@@ -1,318 +0,0 @@

1−{-# LANGUAGE DataKinds #-}

2−{-# LANGUAGE TypeApplications #-}

3−{-# LANGUAGE OverloadedLists #-}

4−{-# LANGUAGE OverloadedStrings #-}

5−

6−module LensSpec (spec, main) where

7−

8−import Control.Lens

9−import Data.Proxy

10−import Data.Schematic

11−import Data.Vinyl

12−import Test.Hspec

13−

14−

15−type ArraySchema = 'SchemaArray '[ 'AEq 1] ('SchemaNumber '[ 'NGt 10])

16−

17−type ArrayField = '("foo", ArraySchema)

18−

19−type FieldsSchema =

20− '[ '("bar", 'SchemaOptional ('SchemaText '[ 'TEnum '["foo", "bar"]])), ArrayField]

21−

22−arrayData :: JsonRepr ArraySchema

23−arrayData = ReprArray [ReprNumber 13]

24−

25−arrayField :: FieldRepr ArrayField

26−arrayField = FieldRepr arrayData

27−

28−objectData :: Rec FieldRepr FieldsSchema

29−objectData = FieldRepr (ReprOptional (Just (ReprText "foo")))

30− :& FieldRepr arrayData

31− :& RNil

32−

33−type BigRecord = Rec FieldRepr

34− '[ '("f1", 'SchemaNumber '[])

35− , '("f2", 'SchemaNumber '[])

36− , '("f3", 'SchemaNumber '[])

37− , '("f4", 'SchemaNumber '[])

38− , '("f5", 'SchemaNumber '[])

39− , '("f6", 'SchemaNumber '[])

40− , '("f7", 'SchemaNumber '[])

41− , '("f8", 'SchemaNumber '[])

42− , '("f9", 'SchemaNumber '[])

43− , '("f10", 'SchemaNumber '[])

44− , '("f11", 'SchemaNumber '[])

45− , '("f12", 'SchemaNumber '[])

46− , '("f13", 'SchemaNumber '[])

47− , '("f14", 'SchemaNumber '[])

48− , '("f15", 'SchemaNumber '[])

49− , '("f16", 'SchemaNumber '[])

50− , '("f17", 'SchemaNumber '[])

51− , '("f18", 'SchemaNumber '[])

52− , '("f19", 'SchemaNumber '[])

53− , '("f20", 'SchemaNumber '[])

54− , '("f21", 'SchemaNumber '[])

55− , '("f22", 'SchemaNumber '[])

56− , '("f23", 'SchemaNumber '[])

57− , '("f24", 'SchemaNumber '[])

58− , '("f25", 'SchemaNumber '[])

59− , '("f26", 'SchemaNumber '[])

60− , '("f27", 'SchemaNumber '[])

61− , '("f28", 'SchemaNumber '[])

62− , '("f29", 'SchemaNumber '[])

63− , '("f30", 'SchemaNumber '[])

64− , '("f31", 'SchemaNumber '[])

65− , '("f32", 'SchemaNumber '[])

66− , '("f33", 'SchemaNumber '[])

67− , '("f34", 'SchemaNumber '[])

68− , '("f35", 'SchemaNumber '[])

69− , '("f36", 'SchemaNumber '[])

70− , '("f37", 'SchemaNumber '[])

71− , '("f38", 'SchemaNumber '[])

72− , '("f39", 'SchemaNumber '[])

73− , '("f40", 'SchemaNumber '[])

74− , '("f41", 'SchemaNumber '[])

75− , '("f42", 'SchemaNumber '[])

76− , '("f43", 'SchemaNumber '[])

77− , '("f44", 'SchemaNumber '[])

78− , '("f45", 'SchemaNumber '[])

79− , '("f46", 'SchemaNumber '[])

80− , '("f47", 'SchemaNumber '[])

81− , '("f48", 'SchemaNumber '[])

82− , '("f49", 'SchemaNumber '[])

83− , '("f50", 'SchemaNumber '[])

84− , '("f51", 'SchemaNumber '[])

85− , '("f52", 'SchemaNumber '[])

86− , '("f53", 'SchemaNumber '[])

87− , '("f54", 'SchemaNumber '[])

88− , '("f55", 'SchemaNumber '[])

89− , '("f56", 'SchemaNumber '[])

90− , '("f57", 'SchemaNumber '[])

91− , '("f58", 'SchemaNumber '[])

92− , '("f59", 'SchemaNumber '[])

93− , '("f60", 'SchemaNumber '[])

94− , '("f61", 'SchemaNumber '[])

95− , '("f62", 'SchemaNumber '[])

96− , '("f63", 'SchemaNumber '[])

97− , '("f64", 'SchemaNumber '[])

98− , '("f65", 'SchemaNumber '[])

99− , '("f66", 'SchemaNumber '[])

100− , '("f67", 'SchemaNumber '[])

101− , '("f68", 'SchemaNumber '[])

102− , '("f69", 'SchemaNumber '[])

103− , '("f70", 'SchemaNumber '[])

104− , '("f71", 'SchemaNumber '[])

105− , '("f72", 'SchemaNumber '[])

106− , '("f73", 'SchemaNumber '[])

107− , '("f74", 'SchemaNumber '[])

108− , '("f75", 'SchemaNumber '[])

109− , '("f76", 'SchemaNumber '[])

110− , '("f77", 'SchemaNumber '[])

111− , '("f78", 'SchemaNumber '[])

112− , '("f79", 'SchemaNumber '[])

113− , '("f80", 'SchemaNumber '[])

114− , '("f81", 'SchemaNumber '[])

115− , '("f82", 'SchemaNumber '[])

116− , '("f83", 'SchemaNumber '[])

117− , '("f84", 'SchemaNumber '[])

118− , '("f85", 'SchemaNumber '[])

119− , '("f86", 'SchemaNumber '[])

120− , '("f87", 'SchemaNumber '[])

121− , '("f88", 'SchemaNumber '[])

122− , '("f89", 'SchemaNumber '[])

123− , '("f90", 'SchemaNumber '[])

124− , '("f91", 'SchemaNumber '[])

125− , '("f92", 'SchemaNumber '[])

126− , '("f93", 'SchemaNumber '[])

127− , '("f94", 'SchemaNumber '[])

128− , '("f95", 'SchemaNumber '[])

129− , '("f96", 'SchemaNumber '[])

130− , '("f97", 'SchemaNumber '[])

131− , '("f98", 'SchemaNumber '[])

132− , '("f99", 'SchemaNumber '[])

133− , '("f100", 'SchemaNumber '[])

134− , '("f101", 'SchemaNumber '[])

135− , '("f102", 'SchemaNumber '[])

136− , '("f103", 'SchemaNumber '[])

137− , '("f104", 'SchemaNumber '[])

138− , '("f105", 'SchemaNumber '[])

139− , '("f106", 'SchemaNumber '[])

140− , '("f107", 'SchemaNumber '[])

141− , '("f108", 'SchemaNumber '[])

142− , '("f109", 'SchemaNumber '[])

143− , '("f110", 'SchemaNumber '[])

144− , '("f111", 'SchemaNumber '[])

145− , '("f112", 'SchemaNumber '[])

146− , '("f113", 'SchemaNumber '[])

147− , '("f114", 'SchemaNumber '[])

148− , '("f115", 'SchemaNumber '[])

149− , '("f116", 'SchemaNumber '[])

150− , '("f117", 'SchemaNumber '[])

151− , '("f118", 'SchemaNumber '[])

152− , '("f119", 'SchemaNumber '[])

153− , '("f120", 'SchemaNumber '[])

154− , '("f121", 'SchemaNumber '[])

155− , '("f122", 'SchemaNumber '[])

156− , '("f123", 'SchemaNumber '[])

157− , '("f124", 'SchemaNumber '[])

158− , '("f125", 'SchemaNumber '[])

159− , '("f126", 'SchemaNumber '[])

160− , '("f127", 'SchemaNumber '[])

161− , '("f128", 'SchemaNumber '[])

162− , '("f129", 'SchemaNumber '[])

163− , '("f130", 'SchemaNumber '[])

164− ]

165−

166−_bigRecord :: BigRecord

167−_bigRecord =

168− FieldRepr (ReprNumber 1)

169− :& FieldRepr (ReprNumber 2)

170− :& FieldRepr (ReprNumber 3)

171− :& FieldRepr (ReprNumber 4)

172− :& FieldRepr (ReprNumber 5)

173− :& FieldRepr (ReprNumber 6)

174− :& FieldRepr (ReprNumber 7)

175− :& FieldRepr (ReprNumber 8)

176− :& FieldRepr (ReprNumber 9)

177− :& FieldRepr (ReprNumber 10)

178− :& FieldRepr (ReprNumber 11)

179− :& FieldRepr (ReprNumber 12)

180− :& FieldRepr (ReprNumber 13)

181− :& FieldRepr (ReprNumber 14)

182− :& FieldRepr (ReprNumber 15)

183− :& FieldRepr (ReprNumber 16)

184− :& FieldRepr (ReprNumber 17)

185− :& FieldRepr (ReprNumber 18)

186− :& FieldRepr (ReprNumber 19)

187− :& FieldRepr (ReprNumber 20)

188− :& FieldRepr (ReprNumber 21)

189− :& FieldRepr (ReprNumber 22)

190− :& FieldRepr (ReprNumber 23)

191− :& FieldRepr (ReprNumber 24)

192− :& FieldRepr (ReprNumber 25)

193− :& FieldRepr (ReprNumber 26)

194− :& FieldRepr (ReprNumber 27)

195− :& FieldRepr (ReprNumber 28)

196− :& FieldRepr (ReprNumber 29)

197− :& FieldRepr (ReprNumber 30)

198− :& FieldRepr (ReprNumber 31)

199− :& FieldRepr (ReprNumber 32)

200− :& FieldRepr (ReprNumber 33)

201− :& FieldRepr (ReprNumber 34)

202− :& FieldRepr (ReprNumber 35)

203− :& FieldRepr (ReprNumber 36)

204− :& FieldRepr (ReprNumber 37)

205− :& FieldRepr (ReprNumber 38)

206− :& FieldRepr (ReprNumber 39)

207− :& FieldRepr (ReprNumber 40)

208− :& FieldRepr (ReprNumber 41)

209− :& FieldRepr (ReprNumber 42)

210− :& FieldRepr (ReprNumber 43)

211− :& FieldRepr (ReprNumber 44)

212− :& FieldRepr (ReprNumber 45)

213− :& FieldRepr (ReprNumber 46)

214− :& FieldRepr (ReprNumber 47)

215− :& FieldRepr (ReprNumber 48)

216− :& FieldRepr (ReprNumber 49)

217− :& FieldRepr (ReprNumber 50)

218− :& FieldRepr (ReprNumber 51)

219− :& FieldRepr (ReprNumber 52)

220− :& FieldRepr (ReprNumber 53)

221− :& FieldRepr (ReprNumber 54)

222− :& FieldRepr (ReprNumber 55)

223− :& FieldRepr (ReprNumber 56)

224− :& FieldRepr (ReprNumber 57)

225− :& FieldRepr (ReprNumber 58)

226− :& FieldRepr (ReprNumber 59)

227− :& FieldRepr (ReprNumber 60)

228− :& FieldRepr (ReprNumber 61)

229− :& FieldRepr (ReprNumber 62)

230− :& FieldRepr (ReprNumber 63)

231− :& FieldRepr (ReprNumber 64)

232− :& FieldRepr (ReprNumber 65)

233− :& FieldRepr (ReprNumber 66)

234− :& FieldRepr (ReprNumber 67)

235− :& FieldRepr (ReprNumber 68)

236− :& FieldRepr (ReprNumber 69)

237− :& FieldRepr (ReprNumber 70)

238− :& FieldRepr (ReprNumber 71)

239− :& FieldRepr (ReprNumber 72)

240− :& FieldRepr (ReprNumber 73)

241− :& FieldRepr (ReprNumber 74)

242− :& FieldRepr (ReprNumber 75)

243− :& FieldRepr (ReprNumber 76)

244− :& FieldRepr (ReprNumber 77)

245− :& FieldRepr (ReprNumber 78)

246− :& FieldRepr (ReprNumber 79)

247− :& FieldRepr (ReprNumber 80)

248− :& FieldRepr (ReprNumber 81)

249− :& FieldRepr (ReprNumber 82)

250− :& FieldRepr (ReprNumber 83)

251− :& FieldRepr (ReprNumber 84)

252− :& FieldRepr (ReprNumber 85)

253− :& FieldRepr (ReprNumber 86)

254− :& FieldRepr (ReprNumber 87)

255− :& FieldRepr (ReprNumber 88)

256− :& FieldRepr (ReprNumber 89)

257− :& FieldRepr (ReprNumber 90)

258− :& FieldRepr (ReprNumber 91)

259− :& FieldRepr (ReprNumber 92)

260− :& FieldRepr (ReprNumber 93)

261− :& FieldRepr (ReprNumber 94)

262− :& FieldRepr (ReprNumber 95)

263− :& FieldRepr (ReprNumber 96)

264− :& FieldRepr (ReprNumber 97)

265− :& FieldRepr (ReprNumber 98)

266− :& FieldRepr (ReprNumber 99)

267− :& FieldRepr (ReprNumber 100)

268− :& FieldRepr (ReprNumber 101)

269− :& FieldRepr (ReprNumber 102)

270− :& FieldRepr (ReprNumber 103)

271− :& FieldRepr (ReprNumber 104)

272− :& FieldRepr (ReprNumber 105)

273− :& FieldRepr (ReprNumber 106)

274− :& FieldRepr (ReprNumber 107)

275− :& FieldRepr (ReprNumber 108)

276− :& FieldRepr (ReprNumber 109)

277− :& FieldRepr (ReprNumber 110)

278− :& FieldRepr (ReprNumber 111)

279− :& FieldRepr (ReprNumber 112)

280− :& FieldRepr (ReprNumber 113)

281− :& FieldRepr (ReprNumber 114)

282− :& FieldRepr (ReprNumber 115)

283− :& FieldRepr (ReprNumber 116)

284− :& FieldRepr (ReprNumber 117)

285− :& FieldRepr (ReprNumber 118)

286− :& FieldRepr (ReprNumber 119)

287− :& FieldRepr (ReprNumber 120)

288− :& FieldRepr (ReprNumber 121)

289− :& FieldRepr (ReprNumber 122)

290− :& FieldRepr (ReprNumber 123)

291− :& FieldRepr (ReprNumber 124)

292− :& FieldRepr (ReprNumber 125)

293− :& FieldRepr (ReprNumber 126)

294− :& FieldRepr (ReprNumber 127)

295− :& FieldRepr (ReprNumber 128)

296− :& FieldRepr (ReprNumber 129)

297− :& FieldRepr (ReprNumber 130)

298− :& RNil

299−

300−spec :: Spec

301−spec = do

302− let

303− newFooVal = FieldRepr $ ReprArray [ReprNumber 15]

304− fooProxy = Proxy @"foo"

305− it "gets the field from an object" $ do

306− fget @"foo" objectData `shouldBe` arrayField

307− it "sets the object field" $ do

308− fget @"foo" (fput newFooVal objectData) `shouldBe` newFooVal

309−

310− describe "(using lens library) " $ do

311− it "get the field from an object" $ do

312− objectData ^. flens @"foo" `shouldBe` arrayField

313− it "sets the object field" $ do

314− set (flens @"foo") newFooVal objectData ^. flens @"foo"

315− `shouldBe` newFooVal

316−

317−main :: IO ()

318−main = hspec spec

test/SchemaSpec.hs+55−78

@@ -1,78 +1,47 @@

11{-# OPTIONS_GHC -fprint-potential-instances #-}

3−{-# LANGUAGE DataKinds #-}

4−{-# LANGUAGE FlexibleContexts #-}

5−{-# LANGUAGE GADTs #-}

6−{-# LANGUAGE OverloadedLists #-}

7−{-# LANGUAGE OverloadedStrings #-}

8−{-# LANGUAGE RankNTypes #-}

9−{-# LANGUAGE ScopedTypeVariables #-}

10−{-# LANGUAGE TypeApplications #-}

11−

123module SchemaSpec (spec, main) where

134

14−import Control.Lens

15−import Data.Aeson

5+import Control.Monad

166import Data.ByteString.Lazy

17−import Data.Functor.Identity

7+import Data.Aeson

188import Data.Proxy

199import Data.Schematic

20−import Data.Schematic.Generator

2110import Data.Singletons

22−import Data.Tagged

11+import Data.Singletons.Prelude

2312import Data.Vinyl

2413import Test.Hspec

2514import Test.Hspec.SmallCheck

26−import Test.SmallCheck as SC

27−import Test.SmallCheck.Drivers as SC

28−import Test.SmallCheck.Series as SC

15+import Test.SmallCheck

16+import Test.SmallCheck.Series.Instances

17+

18+

19+type SchemaExample

20+ = 'SchemaObject

21+ '[ '("foo", 'SchemaArray '[AEq 1] ('SchemaNumber '[NGt 10]))

22+ , '("bar", 'SchemaOptional ('SchemaText '[TEnum '["foo", "bar"]]))]

2923

30−import Debug.Trace

24+type TestMigration =

25+ 'Migration "test_revision"

26+ '[ 'Diff '[ 'PKey "bar" ] ('Update ('SchemaText '[]))

27+ , 'Diff '[ 'PKey "foo" ] ('Update ('SchemaNumber '[])) ]

3128

32−type SchemaExample = 'SchemaObject

33− '[ '("foo", 'SchemaArray '[ 'AEq 1] ('SchemaNumber '[ 'NGt 10]))

34− , '("bar", 'SchemaOptional ('SchemaText '[ 'TEnum '["foo", "bar"]]))]

29+type VS = 'Versioned SchemaExample '[ TestMigration ]

3530

36−type SchemaExample2 = 'SchemaObject

37− '[ '("foo", 'SchemaArray '[ 'AEq 2] ('SchemaText '[ 'TGt 10]))

38− , '("bar", 'SchemaOptional ('SchemaText '[ 'TRegex "[0-9]+"]))]

31+exampleTest :: JsonRepr (SchemaOptional (SchemaText '[TEq 3]))

32+exampleTest = ReprOptional (Just (ReprText "lil"))

33+

34+exampleNumber :: JsonRepr (SchemaNumber '[NGt 10])

35+exampleNumber = ReprNumber 12

36+

37+exampleArray :: JsonRepr (SchemaArray '[AEq 1] (SchemaNumber '[NGt 10]))

38+exampleArray = ReprArray [exampleNumber]

3939

4040jsonExample :: JsonRepr SchemaExample

41−jsonExample = withRepr @SchemaExample

42− $ field @"bar" (Just "bar")

43− :& field @"foo" [12]

44− :& RNil

45−

46−type AddQuuz =

47− 'Migration "add_field_quuz"

48− '[ 'Diff '[] ('AddKey "quuz" (SchemaNumber '[])) ]

49−

50−type DeleteQuuz =

51− 'Migration "remove_field_quuz"

52− '[ 'Diff '[] ( 'DeleteKey "quuz") ]

53−

54−type SwapFields =

55− 'Migration "swap_fields"

56− '[ 'Diff '[ 'PKey "bar" ] ('Update

57− ('SchemaArray '[ 'AEq 1] ('SchemaNumber '[ 'NGt 10])))

58− , 'Diff '[ 'PKey "foo" ] ('Update

59− ('SchemaOptional ('SchemaText '[ 'TEnum '["foo", "bar"]]))) ]

60−

61−type Migrations = '[ AddQuuz

62− , DeleteQuuz ]

63− -- , SwapFields ]

64−

65−type VersionedJson = 'Versioned SchemaExample Migrations

66−

67−migrationList :: MigrationList Identity VersionedJson

68−migrationList

69− = (migrateObject (\r -> Identity $ field @"quuz" 42 :& r))

70− :&& shrinkObject

71− -- :&& (migrateObject (\r -> Identity

72− -- $ field @"foo" (r ^. flens (Proxy @"bar") . _Just . optionalRepr)

73− -- :& field @"bar" (r ^. flens (Proxy @"foo") . arrayRepr)

74− -- :& RNil))

75− :&& MNil

41+jsonExample = ReprObject $

42+ FieldRepr (ReprArray [ReprNumber 12])

43+ :& FieldRepr (ReprOptional (Just (ReprText "bar")))

44+ :& RNil

7645

7746schemaJson :: ByteString

7847schemaJson = "{\"foo\": [13], \"bar\": null}"

@@ -80,11 +49,26 @@ schemaJson = "{\"foo\": [13], \"bar\": null}"

8049schemaJson2 :: ByteString

8150schemaJson2 = "{\"foo\": [3], \"bar\": null}"

8251

83−schemaJsonSeries :: Monad m => SC.Series m (JsonRepr SchemaExample)

84−schemaJsonSeries = series

85−

86−schemaJsonSeries2 :: Monad m => SC.Series m (JsonRepr SchemaExample2)

87−schemaJsonSeries2 = series

52+schemaJsonTopVersion :: ByteString

53+schemaJsonTopVersion = "{ \"foo\": 42, \"bar\": \"bar\" }"

54+

55+topObject

56+ :: JsonRepr

57+ ('SchemaObject

58+ '[ '("foo", 'SchemaNumber '[])

59+ , '("bar", 'SchemaText '[])])

60+topObject = ReprObject $

61+ FieldRepr (ReprNumber 42)

62+ :& FieldRepr (ReprText "test")

63+ :& RNil

64+

65+instance

66+ MigrateSchema

67+ SchemaExample

68+ ('SchemaObject

69+ '[ '("foo", 'SchemaNumber '[]), '("bar", 'SchemaText '[])])

70+ where

71+ migrate = const topObject

8872

8973spec :: Spec

9074spec = do

@@ -101,22 +85,15 @@ spec = do

10185 it "validates incorrect representation" $

10286 ((decodeAndValidateJson schemaJson2) :: ParseResult (JsonRepr SchemaExample))

10387 `shouldSatisfy` isValidationError

104− -- it "validates versioned json" $ do

105− -- decodeAndValidateVersionedJson (Proxy @VS) schemaJson

106− -- `shouldSatisfy` isValid

107− it "validates versioned json with a migration list" $ do

108− decodeAndValidateVersionedWithPureMList

109− (Proxy @VersionedJson)

110− migrationList

88+ it "validates versioned json" $ do

89+ decodeAndValidateVersionedJson (Proxy @VS) schemaJson

90+ `shouldSatisfy` isValid

91+ it "validates with Migration List" $ do

92+ decodeAndValidateVersionedWithMList

93+ (Proxy @VS)

94+ ((:&&) (Proxy @(SchemaByRevision "test_revision" VS)) (const topObject) MNil)

11195 schemaJson

11296 `shouldSatisfy` isValid

113− it "validates json series" $ property $

114− SC.over schemaJsonSeries $ \x ->

115− isValid (parseAndValidateJson @SchemaExample (toJSON x))

116− it "validates json series 2" $ property $

117− SC.over schemaJsonSeries2 $ \x ->

118− isValid (parseAndValidateJson @SchemaExample2 (toJSON x))

119−

12097

12198main :: IO ()

12299main = hspec spec