module HaskellWorks.Data.Json.Succinct.Cursor.Internal
( JsonCursor(..)
, jsonCursorPos
) where
import Data.ByteString.Internal as BSI
import Data.String
import Data.Word
import Foreign.ForeignPtr
import HaskellWorks.Data.Bits.BitShown
import HaskellWorks.Data.FromByteString
import HaskellWorks.Data.FromForeignRegion
import HaskellWorks.Data.Json.Succinct.Cursor.BlankedJson
import HaskellWorks.Data.Json.Succinct.Cursor.InterestBits
import HaskellWorks.Data.Positioning
import HaskellWorks.Data.RankSelect.Base.Rank0
import HaskellWorks.Data.RankSelect.Base.Rank1
import HaskellWorks.Data.RankSelect.Base.Select1
import HaskellWorks.Data.RankSelect.Poppy512
import HaskellWorks.Data.TreeCursor
import qualified Data.ByteString as BS
import qualified Data.ByteString.Char8 as BSC
import qualified Data.Vector.Storable as DVS
import qualified HaskellWorks.Data.BalancedParens as BP
import qualified HaskellWorks.Data.Json.Succinct.Cursor.BalancedParens as CBP
data JsonCursor t v w = JsonCursor
{ cursorText :: !t
, interests :: !v
, balancedParens :: !w
, cursorRank :: !Count
}
deriving (Eq, Show)
instance (FromBlankedJson (JsonInterestBits a), FromBlankedJson (CBP.JsonBalancedParens b))
=> FromByteString (JsonCursor BS.ByteString a b) where
fromByteString bs = JsonCursor
{ cursorText = bs
, interests = getJsonInterestBits (fromBlankedJson blankedJson)
, balancedParens = CBP.getJsonBalancedParens (fromBlankedJson blankedJson)
, cursorRank = 1
}
where blankedJson :: BlankedJson
blankedJson = fromByteString bs
instance IsString (JsonCursor String (BitShown [Bool]) (BP.SimpleBalancedParens [Bool])) where
fromString :: String -> JsonCursor String (BitShown [Bool]) (BP.SimpleBalancedParens [Bool])
fromString s = JsonCursor
{ cursorText = s
, cursorRank = 1
, interests = getJsonInterestBits (fromBlankedJson blankedJson)
, balancedParens = CBP.getJsonBalancedParens (fromBlankedJson blankedJson)
}
where blankedJson :: BlankedJson
blankedJson = fromByteString (BSC.pack s)
instance IsString (JsonCursor BS.ByteString (BitShown (DVS.Vector Word8)) (BP.SimpleBalancedParens (DVS.Vector Word8))) where
fromString = fromByteString . BSC.pack
instance IsString (JsonCursor BS.ByteString (BitShown (DVS.Vector Word16)) (BP.SimpleBalancedParens (DVS.Vector Word16))) where
fromString = fromByteString . BSC.pack
instance IsString (JsonCursor BS.ByteString (BitShown (DVS.Vector Word32)) (BP.SimpleBalancedParens (DVS.Vector Word32))) where
fromString = fromByteString . BSC.pack
instance IsString (JsonCursor BS.ByteString (BitShown (DVS.Vector Word64)) (BP.SimpleBalancedParens (DVS.Vector Word64))) where
fromString = fromByteString . BSC.pack
instance IsString (JsonCursor BS.ByteString Poppy512 (BP.SimpleBalancedParens (DVS.Vector Word64))) where
fromString = fromByteString . BSC.pack
instance FromForeignRegion (JsonCursor BS.ByteString (BitShown (DVS.Vector Word8)) (BP.SimpleBalancedParens (DVS.Vector Word8))) where
fromForeignRegion (fptr, offset, size) = fromByteString (BSI.fromForeignPtr (castForeignPtr fptr) offset size)
instance FromForeignRegion (JsonCursor BS.ByteString (BitShown (DVS.Vector Word16)) (BP.SimpleBalancedParens (DVS.Vector Word16))) where
fromForeignRegion (fptr, offset, size) = fromByteString (BSI.fromForeignPtr (castForeignPtr fptr) offset size)
instance FromForeignRegion (JsonCursor BS.ByteString (BitShown (DVS.Vector Word32)) (BP.SimpleBalancedParens (DVS.Vector Word32))) where
fromForeignRegion (fptr, offset, size) = fromByteString (BSI.fromForeignPtr (castForeignPtr fptr) offset size)
instance FromForeignRegion (JsonCursor BS.ByteString (BitShown (DVS.Vector Word64)) (BP.SimpleBalancedParens (DVS.Vector Word64))) where
fromForeignRegion (fptr, offset, size) = fromByteString (BSI.fromForeignPtr (castForeignPtr fptr) offset size)
instance FromForeignRegion (JsonCursor BS.ByteString Poppy512 (BP.SimpleBalancedParens (DVS.Vector Word64))) where
fromForeignRegion (fptr, offset, size) = fromByteString (BSI.fromForeignPtr (castForeignPtr fptr) offset size)
instance (BP.BalancedParens u, Rank1 u, Rank0 u) => TreeCursor (JsonCursor t v u) where
firstChild :: JsonCursor t v u -> Maybe (JsonCursor t v u)
firstChild k = let mq = BP.firstChild (balancedParens k) (cursorRank k) in (\q -> k { cursorRank = q }) <$> mq
nextSibling :: JsonCursor t v u -> Maybe (JsonCursor t v u)
nextSibling k = (\q -> k { cursorRank = q }) <$> BP.nextSibling (balancedParens k) (cursorRank k)
parent :: JsonCursor t v u -> Maybe (JsonCursor t v u)
parent k = let mq = BP.parent (balancedParens k) (cursorRank k) in (\q -> k { cursorRank = q }) <$> mq
depth :: JsonCursor t v u -> Maybe Count
depth k = BP.depth (balancedParens k) (cursorRank k)
subtreeSize :: JsonCursor t v u -> Maybe Count
subtreeSize k = BP.subtreeSize (balancedParens k) (cursorRank k)
jsonCursorPos :: (Rank1 w, Select1 v) => JsonCursor s v w -> Position
jsonCursorPos k = toPosition (select1 ik (rank1 bpk (cursorRank k)) 1)
where ik = interests k
bpk = balancedParens k