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|
module TreeSitter
( Language,
Node (..),
Point (..),
extract_comments,
tree_sitter_haskell,
)
where
import Foreign.C.String (CString)
import Foreign.C.Types (CInt (..))
import Foreign.Ptr (Ptr)
import Foreign.Storable (Storable (..))
data Language
data Node = Node
{ startPoint :: Point,
endPoint :: Point,
startByte :: CInt,
endByte :: CInt
}
deriving (Show, Eq)
instance Storable Node where
alignment _ = 8
sizeOf _ = 24
peek ptr =
Node
<$> peekByteOff ptr 0
<*> peekByteOff ptr 8
<*> peekByteOff ptr 16
<*> peekByteOff ptr 20
poke ptr (Node {..}) = do
pokeByteOff ptr 0 startPoint
pokeByteOff ptr 8 endPoint
pokeByteOff ptr 16 startByte
pokeByteOff ptr 20 endByte
data Point = Point
{ row :: CInt,
column :: CInt
}
deriving (Show, Eq)
instance Storable Point where
alignment _ = 4
sizeOf _ = 8
peek ptr = Point <$> peekByteOff ptr 0 <*> peekByteOff ptr 4
poke ptr (Point {..}) = pokeByteOff ptr 0 row >> pokeByteOff ptr 4 column
foreign import ccall unsafe "extract_comments"
extract_comments ::
Ptr Language ->
CString ->
Ptr (Ptr Node) ->
Ptr CInt ->
IO ()
foreign import ccall unsafe "tree_sitter_haskell" tree_sitter_haskell :: Ptr Language
|
