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25 lines
885 B
Haskell
25 lines
885 B
Haskell
module Hasql.Encoders.Value where
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import Hasql.PostgresTypeInfo qualified as PTI
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import Hasql.Prelude
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import PostgreSQL.Binary.Encoding qualified as B
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import Text.Builder qualified as C
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data Value a
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= Value PTI.OID PTI.OID (Bool -> a -> B.Encoding) (a -> C.Builder)
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instance Contravariant Value where
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{-# INLINE contramap #-}
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contramap f (Value valueOID arrayOID encode render) =
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Value valueOID arrayOID (\integerDatetimes input -> encode integerDatetimes (f input)) (render . f)
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{-# INLINE unsafePTI #-}
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unsafePTI :: PTI.PTI -> (Bool -> a -> B.Encoding) -> (a -> C.Builder) -> Value a
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unsafePTI pti =
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Value (PTI.ptiOID pti) (fromMaybe (error "No array OID") (PTI.ptiArrayOID pti))
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{-# INLINE unsafePTIWithShow #-}
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unsafePTIWithShow :: (Show a) => PTI.PTI -> (Bool -> a -> B.Encoding) -> Value a
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unsafePTIWithShow pti encode =
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unsafePTI pti encode (C.string . show)
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