{-# LANGUAGE CPP #-}
{-# LANGUAGE FlexibleInstances #-}
{-# LANGUAGE ScopedTypeVariables #-}
module Foreign.Lua.Types.Pushable
( Pushable (..)
, pushList
) where
import Control.Monad (zipWithM_)
import Data.ByteString (ByteString)
import Data.Map (Map, toList)
import Data.Set (Set)
import Foreign.Lua.Core as Lua
import Foreign.Ptr (Ptr)
import qualified Data.Text as T
import qualified Data.ByteString.Lazy as BL
import qualified Foreign.Lua.Utf8 as Utf8
class Pushable a where
push :: a -> Lua ()
instance Pushable () where
push :: () -> Lua ()
push = Lua () -> () -> Lua ()
forall a b. a -> b -> a
const Lua ()
pushnil
instance Pushable Lua.Integer where
push :: Integer -> Lua ()
push = Integer -> Lua ()
pushinteger
instance Pushable Lua.Number where
push :: Number -> Lua ()
push = Number -> Lua ()
pushnumber
instance Pushable ByteString where
push :: ByteString -> Lua ()
push = ByteString -> Lua ()
pushstring
instance Pushable Bool where
push :: Bool -> Lua ()
push = Bool -> Lua ()
pushboolean
instance Pushable CFunction where
push :: CFunction -> Lua ()
push = CFunction -> Lua ()
pushcfunction
instance Pushable (Ptr a) where
push :: Ptr a -> Lua ()
push = Ptr a -> Lua ()
forall a. Ptr a -> Lua ()
pushlightuserdata
instance Pushable T.Text where
push :: Text -> Lua ()
push = ByteString -> Lua ()
forall a. Pushable a => a -> Lua ()
push (ByteString -> Lua ()) -> (Text -> ByteString) -> Text -> Lua ()
forall b c a. (b -> c) -> (a -> b) -> a -> c
. Text -> ByteString
Utf8.fromText
instance Pushable BL.ByteString where
push :: ByteString -> Lua ()
push = ByteString -> Lua ()
forall a. Pushable a => a -> Lua ()
push (ByteString -> Lua ())
-> (ByteString -> ByteString) -> ByteString -> Lua ()
forall b c a. (b -> c) -> (a -> b) -> a -> c
. ByteString -> ByteString
BL.toStrict
instance Pushable Prelude.Integer where
push :: Integer -> Lua ()
push = Integer -> Lua ()
pushInteger
instance Pushable Int where
push :: Int -> Lua ()
push = Integer -> Lua ()
pushInteger (Integer -> Lua ()) -> (Int -> Integer) -> Int -> Lua ()
forall b c a. (b -> c) -> (a -> b) -> a -> c
. Int -> Integer
forall a b. (Integral a, Num b) => a -> b
fromIntegral
instance Pushable Float where
push :: Float -> Lua ()
push = Float -> Lua ()
forall a. (RealFloat a, Show a) => a -> Lua ()
pushRealFloat
instance Pushable Double where
push :: Double -> Lua ()
push = Double -> Lua ()
forall a. (RealFloat a, Show a) => a -> Lua ()
pushRealFloat
instance {-# OVERLAPS #-} Pushable [Char] where
push :: [Char] -> Lua ()
push = ByteString -> Lua ()
forall a. Pushable a => a -> Lua ()
push (ByteString -> Lua ())
-> ([Char] -> ByteString) -> [Char] -> Lua ()
forall b c a. (b -> c) -> (a -> b) -> a -> c
. [Char] -> ByteString
Utf8.fromString
instance Pushable a => Pushable [a] where
push :: [a] -> Lua ()
push = [a] -> Lua ()
forall a. Pushable a => [a] -> Lua ()
pushList
pushInteger :: Prelude.Integer -> Lua ()
pushInteger :: Integer -> Lua ()
pushInteger Integer
i =
let maxInt :: Integer
maxInt = Integer -> Integer
forall a b. (Integral a, Num b) => a -> b
fromIntegral (Integer
forall a. Bounded a => a
maxBound :: Lua.Integer)
minInt :: Integer
minInt = Integer -> Integer
forall a b. (Integral a, Num b) => a -> b
fromIntegral (Integer
forall a. Bounded a => a
minBound :: Lua.Integer)
in if Integer
i Integer -> Integer -> Bool
forall a. Ord a => a -> a -> Bool
>= Integer
minInt Bool -> Bool -> Bool
&& Integer
i Integer -> Integer -> Bool
forall a. Ord a => a -> a -> Bool
<= Integer
maxInt
then Integer -> Lua ()
forall a. Pushable a => a -> Lua ()
push (Integer -> Integer
forall a b. (Integral a, Num b) => a -> b
fromIntegral Integer
i :: Lua.Integer)
else [Char] -> Lua ()
forall a. Pushable a => a -> Lua ()
push (Integer -> [Char]
forall a. Show a => a -> [Char]
show Integer
i)
pushRealFloat :: (RealFloat a, Show a) => a -> Lua ()
pushRealFloat :: a -> Lua ()
pushRealFloat a
f =
let
number :: Number
number = Number
0 :: Lua.Number
doubleFitsInNumber :: Bool
doubleFitsInNumber = Number -> Integer
forall a. RealFloat a => a -> Integer
floatRadix Number
number Integer -> Integer -> Bool
forall a. Eq a => a -> a -> Bool
== a -> Integer
forall a. RealFloat a => a -> Integer
floatRadix a
f
Bool -> Bool -> Bool
&& Number -> Int
forall a. RealFloat a => a -> Int
floatDigits Number
number Int -> Int -> Bool
forall a. Eq a => a -> a -> Bool
== a -> Int
forall a. RealFloat a => a -> Int
floatDigits a
f
Bool -> Bool -> Bool
&& Number -> (Int, Int)
forall a. RealFloat a => a -> (Int, Int)
floatRange Number
number (Int, Int) -> (Int, Int) -> Bool
forall a. Eq a => a -> a -> Bool
== a -> (Int, Int)
forall a. RealFloat a => a -> (Int, Int)
floatRange a
f
in if Bool
doubleFitsInNumber
then Number -> Lua ()
forall a. Pushable a => a -> Lua ()
push (a -> Number
forall a b. (Real a, Fractional b) => a -> b
realToFrac a
f :: Lua.Number)
else [Char] -> Lua ()
forall a. Pushable a => a -> Lua ()
push (a -> [Char]
forall a. Show a => a -> [Char]
show a
f)
pushList :: Pushable a => [a] -> Lua ()
pushList :: [a] -> Lua ()
pushList [a]
xs = do
let setField :: Integer -> a -> Lua ()
setField Integer
i a
x = a -> Lua ()
forall a. Pushable a => a -> Lua ()
push a
x Lua () -> Lua () -> Lua ()
forall (f :: * -> *) a b. Applicative f => f a -> f b -> f b
*> StackIndex -> Integer -> Lua ()
rawseti (-StackIndex
2) Integer
i
Lua ()
newtable
(Integer -> a -> Lua ()) -> [Integer] -> [a] -> Lua ()
forall (m :: * -> *) a b c.
Applicative m =>
(a -> b -> m c) -> [a] -> [b] -> m ()
zipWithM_ Integer -> a -> Lua ()
forall a. Pushable a => Integer -> a -> Lua ()
setField [Integer
1..] [a]
xs
instance (Pushable a, Pushable b) => Pushable (Map a b) where
push :: Map a b -> Lua ()
push Map a b
m = do
let addValue :: (a, a) -> Lua ()
addValue (a
k, a
v) = a -> Lua ()
forall a. Pushable a => a -> Lua ()
push a
k Lua () -> Lua () -> Lua ()
forall (f :: * -> *) a b. Applicative f => f a -> f b -> f b
*> a -> Lua ()
forall a. Pushable a => a -> Lua ()
push a
v Lua () -> Lua () -> Lua ()
forall (f :: * -> *) a b. Applicative f => f a -> f b -> f b
*> StackIndex -> Lua ()
rawset (-StackIndex
3)
Lua ()
newtable
((a, b) -> Lua ()) -> [(a, b)] -> Lua ()
forall (t :: * -> *) (m :: * -> *) a b.
(Foldable t, Monad m) =>
(a -> m b) -> t a -> m ()
mapM_ (a, b) -> Lua ()
forall a a. (Pushable a, Pushable a) => (a, a) -> Lua ()
addValue (Map a b -> [(a, b)]
forall k a. Map k a -> [(k, a)]
toList Map a b
m)
instance Pushable a => Pushable (Set a) where
push :: Set a -> Lua ()
push Set a
set = do
let addItem :: a -> Lua ()
addItem a
item = a -> Lua ()
forall a. Pushable a => a -> Lua ()
push a
item Lua () -> Lua () -> Lua ()
forall (f :: * -> *) a b. Applicative f => f a -> f b -> f b
*> Bool -> Lua ()
forall a. Pushable a => a -> Lua ()
push Bool
True Lua () -> Lua () -> Lua ()
forall (f :: * -> *) a b. Applicative f => f a -> f b -> f b
*> StackIndex -> Lua ()
rawset (-StackIndex
3)
Lua ()
newtable
(a -> Lua ()) -> Set a -> Lua ()
forall (t :: * -> *) (m :: * -> *) a b.
(Foldable t, Monad m) =>
(a -> m b) -> t a -> m ()
mapM_ a -> Lua ()
forall a. Pushable a => a -> Lua ()
addItem Set a
set
instance (Pushable a, Pushable b) => Pushable (a, b) where
push :: (a, b) -> Lua ()
push (a
a, b
b) = do
Lua ()
newtable
Integer -> a -> Lua ()
forall a. Pushable a => Integer -> a -> Lua ()
addRawInt Integer
1 a
a
Integer -> b -> Lua ()
forall a. Pushable a => Integer -> a -> Lua ()
addRawInt Integer
2 b
b
instance (Pushable a, Pushable b, Pushable c) =>
Pushable (a, b, c)
where
push :: (a, b, c) -> Lua ()
push (a
a, b
b, c
c) = do
Lua ()
newtable
Integer -> a -> Lua ()
forall a. Pushable a => Integer -> a -> Lua ()
addRawInt Integer
1 a
a
Integer -> b -> Lua ()
forall a. Pushable a => Integer -> a -> Lua ()
addRawInt Integer
2 b
b
Integer -> c -> Lua ()
forall a. Pushable a => Integer -> a -> Lua ()
addRawInt Integer
3 c
c
instance (Pushable a, Pushable b, Pushable c, Pushable d) =>
Pushable (a, b, c, d)
where
push :: (a, b, c, d) -> Lua ()
push (a
a, b
b, c
c, d
d) = do
Lua ()
newtable
Integer -> a -> Lua ()
forall a. Pushable a => Integer -> a -> Lua ()
addRawInt Integer
1 a
a
Integer -> b -> Lua ()
forall a. Pushable a => Integer -> a -> Lua ()
addRawInt Integer
2 b
b
Integer -> c -> Lua ()
forall a. Pushable a => Integer -> a -> Lua ()
addRawInt Integer
3 c
c
Integer -> d -> Lua ()
forall a. Pushable a => Integer -> a -> Lua ()
addRawInt Integer
4 d
d
instance (Pushable a, Pushable b, Pushable c,
Pushable d, Pushable e) =>
Pushable (a, b, c, d, e)
where
push :: (a, b, c, d, e) -> Lua ()
push (a
a, b
b, c
c, d
d, e
e) = do
Lua ()
newtable
Integer -> a -> Lua ()
forall a. Pushable a => Integer -> a -> Lua ()
addRawInt Integer
1 a
a
Integer -> b -> Lua ()
forall a. Pushable a => Integer -> a -> Lua ()
addRawInt Integer
2 b
b
Integer -> c -> Lua ()
forall a. Pushable a => Integer -> a -> Lua ()
addRawInt Integer
3 c
c
Integer -> d -> Lua ()
forall a. Pushable a => Integer -> a -> Lua ()
addRawInt Integer
4 d
d
Integer -> e -> Lua ()
forall a. Pushable a => Integer -> a -> Lua ()
addRawInt Integer
5 e
e
instance (Pushable a, Pushable b, Pushable c,
Pushable d, Pushable e, Pushable f) =>
Pushable (a, b, c, d, e, f)
where
push :: (a, b, c, d, e, f) -> Lua ()
push (a
a, b
b, c
c, d
d, e
e, f
f) = do
Lua ()
newtable
Integer -> a -> Lua ()
forall a. Pushable a => Integer -> a -> Lua ()
addRawInt Integer
1 a
a
Integer -> b -> Lua ()
forall a. Pushable a => Integer -> a -> Lua ()
addRawInt Integer
2 b
b
Integer -> c -> Lua ()
forall a. Pushable a => Integer -> a -> Lua ()
addRawInt Integer
3 c
c
Integer -> d -> Lua ()
forall a. Pushable a => Integer -> a -> Lua ()
addRawInt Integer
4 d
d
Integer -> e -> Lua ()
forall a. Pushable a => Integer -> a -> Lua ()
addRawInt Integer
5 e
e
Integer -> f -> Lua ()
forall a. Pushable a => Integer -> a -> Lua ()
addRawInt Integer
6 f
f
instance (Pushable a, Pushable b, Pushable c, Pushable d,
Pushable e, Pushable f, Pushable g) =>
Pushable (a, b, c, d, e, f, g)
where
push :: (a, b, c, d, e, f, g) -> Lua ()
push (a
a, b
b, c
c, d
d, e
e, f
f, g
g) = do
Lua ()
newtable
Integer -> a -> Lua ()
forall a. Pushable a => Integer -> a -> Lua ()
addRawInt Integer
1 a
a
Integer -> b -> Lua ()
forall a. Pushable a => Integer -> a -> Lua ()
addRawInt Integer
2 b
b
Integer -> c -> Lua ()
forall a. Pushable a => Integer -> a -> Lua ()
addRawInt Integer
3 c
c
Integer -> d -> Lua ()
forall a. Pushable a => Integer -> a -> Lua ()
addRawInt Integer
4 d
d
Integer -> e -> Lua ()
forall a. Pushable a => Integer -> a -> Lua ()
addRawInt Integer
5 e
e
Integer -> f -> Lua ()
forall a. Pushable a => Integer -> a -> Lua ()
addRawInt Integer
6 f
f
Integer -> g -> Lua ()
forall a. Pushable a => Integer -> a -> Lua ()
addRawInt Integer
7 g
g
instance (Pushable a, Pushable b, Pushable c, Pushable d,
Pushable e, Pushable f, Pushable g, Pushable h) =>
Pushable (a, b, c, d, e, f, g, h)
where
push :: (a, b, c, d, e, f, g, h) -> Lua ()
push (a
a, b
b, c
c, d
d, e
e, f
f, g
g, h
h) = do
Lua ()
newtable
Integer -> a -> Lua ()
forall a. Pushable a => Integer -> a -> Lua ()
addRawInt Integer
1 a
a
Integer -> b -> Lua ()
forall a. Pushable a => Integer -> a -> Lua ()
addRawInt Integer
2 b
b
Integer -> c -> Lua ()
forall a. Pushable a => Integer -> a -> Lua ()
addRawInt Integer
3 c
c
Integer -> d -> Lua ()
forall a. Pushable a => Integer -> a -> Lua ()
addRawInt Integer
4 d
d
Integer -> e -> Lua ()
forall a. Pushable a => Integer -> a -> Lua ()
addRawInt Integer
5 e
e
Integer -> f -> Lua ()
forall a. Pushable a => Integer -> a -> Lua ()
addRawInt Integer
6 f
f
Integer -> g -> Lua ()
forall a. Pushable a => Integer -> a -> Lua ()
addRawInt Integer
7 g
g
Integer -> h -> Lua ()
forall a. Pushable a => Integer -> a -> Lua ()
addRawInt Integer
8 h
h
addRawInt :: Pushable a => Lua.Integer -> a -> Lua ()
addRawInt :: Integer -> a -> Lua ()
addRawInt Integer
idx a
val = do
a -> Lua ()
forall a. Pushable a => a -> Lua ()
push a
val
StackIndex -> Integer -> Lua ()
rawseti (-StackIndex
2) Integer
idx