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https://github.com/hasura/graphql-engine.git
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647231b685
Manually enables: * EmptyCase * ExistentialQuantification * QuantifiedConstraints * QuasiQuotes * TemplateHaskell * TypeFamilyDependencies ...in the following components: * 'graphql-engine' library * 'graphql-engine' 'src-test' * 'graphql-engine' 'tests/integration' * 'graphql-engine' tests-hspec' Additionally, performs some light refactoring and documentation. PR-URL: https://github.com/hasura/graphql-engine-mono/pull/3991 GitOrigin-RevId: 514477d3466b01f60eca8935d0fef60dd0756838
119 lines
3.2 KiB
Haskell
119 lines
3.2 KiB
Haskell
{-# LANGUAGE CPP #-}
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{-# LANGUAGE TemplateHaskell #-}
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{-# OPTIONS_GHC -fno-warn-orphans #-}
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-- | This module defines all missing instances of third party libraries.
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module Hasura.Base.Instances () where
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import Data.Aeson qualified as J
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import Data.Functor.Product (Product (Pair))
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import Data.GADT.Compare (GCompare (gcompare), GOrdering (GEQ, GGT, GLT))
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import Data.HashMap.Strict qualified as M
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import Data.HashSet qualified as S
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import Data.Text qualified as T
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import Data.URL.Template qualified as UT
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import Database.PG.Query qualified as Q
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import Hasura.Prelude
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import Language.Haskell.TH.Syntax qualified as TH
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import System.Cron.Parser qualified as C
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import System.Cron.Types qualified as C
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import Text.Regex.TDFA qualified as TDFA
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import Text.Regex.TDFA.Pattern qualified as TDFA
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--------------------------------------------------------------------------------
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-- Deepseq
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instance NFData UT.Variable
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instance NFData UT.TemplateItem
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instance NFData UT.URLTemplate
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instance NFData C.StepField
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instance NFData C.RangeField
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instance NFData C.SpecificField
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instance NFData C.BaseField
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instance NFData C.CronField
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instance NFData C.MonthSpec
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instance NFData C.DayOfMonthSpec
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instance NFData C.DayOfWeekSpec
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instance NFData C.HourSpec
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instance NFData C.MinuteSpec
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instance NFData C.CronSchedule
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--------------------------------------------------------------------------------
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-- Template Haskell
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instance (TH.Lift k, TH.Lift v) => TH.Lift (M.HashMap k v) where
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lift m = [|M.fromList $(TH.lift $ M.toList m)|]
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liftTyped = TH.unsafeTExpCoerce . TH.lift
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instance TH.Lift a => TH.Lift (S.HashSet a) where
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lift s = [|S.fromList $(TH.lift $ S.toList s)|]
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liftTyped = TH.unsafeTExpCoerce . TH.lift
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deriving instance TH.Lift TDFA.CompOption
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deriving instance TH.Lift TDFA.DoPa
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deriving instance TH.Lift TDFA.ExecOption
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deriving instance TH.Lift TDFA.Pattern
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deriving instance TH.Lift TDFA.PatternSet
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deriving instance TH.Lift TDFA.PatternSetCharacterClass
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deriving instance TH.Lift TDFA.PatternSetCollatingElement
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deriving instance TH.Lift TDFA.PatternSetEquivalenceClass
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--------------------------------------------------------------------------------
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-- GADT
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instance (GCompare f, GCompare g) => GCompare (Product f g) where
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Pair a1 a2 `gcompare` Pair b1 b2 = case gcompare a1 b1 of
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GLT -> GLT
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GEQ -> case gcompare a2 b2 of
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GLT -> GLT
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GEQ -> GEQ
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GGT -> GGT
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GGT -> GGT
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--------------------------------------------------------------------------------
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-- JSON
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instance J.FromJSON C.CronSchedule where
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parseJSON = J.withText "CronSchedule" $ \t ->
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onLeft (C.parseCronSchedule t) fail
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instance J.ToJSON C.CronSchedule where
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toJSON = J.String . C.serializeCronSchedule
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instance J.ToJSONKey Void
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--------------------------------------------------------------------------------
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-- Postgres
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instance Q.ToPrepArg C.CronSchedule where
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toPrepVal = Q.toPrepVal . C.serializeCronSchedule
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instance Q.FromCol C.CronSchedule where
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fromCol bs =
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case Q.fromCol bs of
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Left err -> Left err
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Right dbCron ->
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case C.parseCronSchedule dbCron of
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Left err' -> Left $ "invalid cron schedule " <> T.pack err'
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Right cron -> Right cron
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