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{-# LANGUAGE EmptyDataDecls #-}
{-# LANGUAGE MagicHash #-}
{-# LANGUAGE BangPatterns #-}
{-# LANGUAGE CPP #-}
{-# LANGUAGE ForeignFunctionInterface #-}
{-# LANGUAGE JavaScriptFFI #-}
module GHCJS.Types ( JSVal
, WouldBlockException(..)
, JSException(..)
, IsJSVal
, jsval
, isNull
, isUndefined
, nullRef
, JSString
, mkRef
, Ref#
, toPtr
, fromPtr
, JSRef
) where
import Data.JSString.Internal.Type (JSString)
import GHCJS.Internal.Types
import GHCJS.Prim
import GHC.Int
import GHC.Types
import GHC.Prim
import GHC.Ptr
import Control.DeepSeq
type Ref# = ByteArray#
mkRef :: ByteArray# -> JSVal
mkRef x = JSVal x
nullRef :: JSVal
nullRef = js_nullRef
{-# INLINE nullRef #-}
toPtr :: JSVal -> Ptr a
toPtr j = js_mkPtr j
{-# INLINE toPtr #-}
fromPtr :: Ptr a -> JSVal
fromPtr p = js_ptrVal p
{-# INLINE fromPtr #-}
foreign import javascript unsafe "$r = null;"
js_nullRef :: JSVal
foreign import javascript unsafe "$r = $1_1;"
js_ptrVal :: Ptr a -> JSVal
foreign import javascript unsafe "$r1 = $1; $r2 = 0;"
js_mkPtr :: JSVal -> Ptr a
-- | This is a deprecated copmatibility wrapper for the old JSRef type.
--
-- See https://github.com/ghcjs/ghcjs/issues/421
type JSRef a = JSVal
{-# DEPRECATED JSRef "Use JSVal instead, or a more specific newtype wrapper of JSVal " #-}