content: {-# LANGUAGE PatternSynonyms #-}
  {-# LANGUAGE ForeignFunctionInterface #-}
  {-# LANGUAGE JavaScriptFFI #-}
  -- For HasCallStack compatibility
  {-# LANGUAGE ImplicitParams, ConstraintKinds, KindSignatures #-}
  module GHCJS.DOM.JSFFI.Generated.PerformanceObserverCallback
         (newPerformanceObserverCallback,
          newPerformanceObserverCallbackSync,
          newPerformanceObserverCallbackAsync, PerformanceObserverCallback)
         where
  import Prelude ((.), (==), (>>=), return, IO, Int, Float, Double, Bool(..), Maybe, maybe, fromIntegral, round, fmap, Show, Read, Eq, Ord)
  import qualified Prelude (error)
  import Data.Typeable (Typeable)
  import GHCJS.Types (JSVal(..), JSString)
  import GHCJS.Foreign (jsNull, jsUndefined)
  import GHCJS.Foreign.Callback (syncCallback, asyncCallback, syncCallback1, asyncCallback1, syncCallback2, asyncCallback2, OnBlocked(..))
  import GHCJS.Marshal (ToJSVal(..), FromJSVal(..))
  import GHCJS.Marshal.Pure (PToJSVal(..), PFromJSVal(..))
  import Control.Monad (void)
  import Control.Monad.IO.Class (MonadIO(..))
  import Data.Int (Int64)
  import Data.Word (Word, Word64)
  import Data.Maybe (fromJust)
  import Data.Traversable (mapM)
  import GHCJS.DOM.Types
  import Control.Applicative ((<$>))
  import GHCJS.DOM.EventTargetClosures (EventName, unsafeEventName, unsafeEventNameAsync)
  import GHCJS.DOM.JSFFI.Generated.Enums
  
  -- | <https://developer.mozilla.org/en-US/docs/Web/API/PerformanceObserverCallback Mozilla PerformanceObserverCallback documentation> 
  newPerformanceObserverCallback ::
                                 (MonadIO m) =>
                                   (PerformanceObserverEntryList -> PerformanceObserver -> IO ()) ->
                                     m PerformanceObserverCallback
  newPerformanceObserverCallback callback
    = liftIO
        (PerformanceObserverCallback <$>
           syncCallback2 ThrowWouldBlock
             (\ entries observer ->
                fromJSValUnchecked observer >>=
                  \ observer' ->
                    fromJSValUnchecked entries >>= \ entries' -> callback entries'
                      observer'))
  
  -- | <https://developer.mozilla.org/en-US/docs/Web/API/PerformanceObserverCallback Mozilla PerformanceObserverCallback documentation> 
  newPerformanceObserverCallbackSync ::
                                     (MonadIO m) =>
                                       (PerformanceObserverEntryList -> PerformanceObserver -> IO ())
                                         -> m PerformanceObserverCallback
  newPerformanceObserverCallbackSync callback
    = liftIO
        (PerformanceObserverCallback <$>
           syncCallback2 ContinueAsync
             (\ entries observer ->
                fromJSValUnchecked observer >>=
                  \ observer' ->
                    fromJSValUnchecked entries >>= \ entries' -> callback entries'
                      observer'))
  
  -- | <https://developer.mozilla.org/en-US/docs/Web/API/PerformanceObserverCallback Mozilla PerformanceObserverCallback documentation> 
  newPerformanceObserverCallbackAsync ::
                                      (MonadIO m) =>
                                        (PerformanceObserverEntryList -> PerformanceObserver -> IO ())
                                          -> m PerformanceObserverCallback
  newPerformanceObserverCallbackAsync callback
    = liftIO
        (PerformanceObserverCallback <$>
           asyncCallback2
             (\ entries observer ->
                fromJSValUnchecked observer >>=
                  \ observer' ->
                    fromJSValUnchecked entries >>= \ entries' -> callback entries'
                      observer'))