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experiment / request for feedback: lazy bytestring variant of 'unknown' #146

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2 changes: 2 additions & 0 deletions library/Hasql/Encoders.hs
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Original file line number Diff line number Diff line change
Expand Up @@ -40,6 +40,8 @@ module Hasql.Encoders
jsonbBytes,
enum,
unknown,
unknownLazy,
unknown',
array,
foldableArray,
-- * Array
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12 changes: 10 additions & 2 deletions library/Hasql/Private/Encoders.hs
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Expand Up @@ -13,7 +13,7 @@ import qualified Hasql.Private.Encoders.Value as Value
import qualified Hasql.Private.Encoders.Array as Array
import qualified Hasql.Private.PTI as PTI
import qualified Hasql.Private.Prelude as Prelude

import qualified Data.ByteString.Lazy as LBS

-- * Parameters Product Encoder
-------------------------
Expand Down Expand Up @@ -280,6 +280,10 @@ produces an encoder of that value.
enum :: (a -> Text) -> Value a
enum mapping = Value (Value.unsafePTI PTI.text (const (A.text_strict . mapping)) (C.text . mapping))

{-# INLINABLE unknown' #-}
unknown' :: Show a => (a -> A.Encoding) -> Value a
unknown' enc = Value (Value.unsafePTIWithShow PTI.unknown (const enc))

{-|
Identifies the value with the PostgreSQL's \"unknown\" type,
thus leaving it up to Postgres to infer the actual type of the value.
Expand All @@ -291,7 +295,11 @@ section of the Postgres' documentation.
-}
{-# INLINABLE unknown #-}
unknown :: Value ByteString
unknown = Value (Value.unsafePTIWithShow PTI.unknown (const A.bytea_strict))
unknown = unknown' A.bytea_strict

{-# INLINABLE unknownLazy #-}
unknownLazy :: Value LBS.ByteString
unknownLazy = unknown' A.bytea_lazy

{-|
Lift an array encoder into a parameter encoder.
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