@@ -9,71 +9,125 @@
9{-# LANGUAGE GADTs #-}
9{-# LANGUAGE GADTs #-}
10{-# LANGUAGE GeneralizedNewtypeDeriving #-}
10{-# LANGUAGE GeneralizedNewtypeDeriving #-}
11{-# LANGUAGE LambdaCase #-}
11{-# LANGUAGE LambdaCase #-}
12−{-# LANGUAGE MagicHash #-}
13−{-# LANGUAGE MultiParamTypeClasses #-}
14−{-# LANGUAGE MultiWayIf #-}
15{-# LANGUAGE RankNTypes #-}
12{-# LANGUAGE RankNTypes #-}
16{-# LANGUAGE RoleAnnotations #-}
13{-# LANGUAGE RoleAnnotations #-}
17{-# LANGUAGE ScopedTypeVariables #-}
14{-# LANGUAGE ScopedTypeVariables #-}
18{-# LANGUAGE TypeFamilies #-}
15{-# LANGUAGE TypeFamilies #-}
19{-# LANGUAGE TypeOperators #-}
16{-# LANGUAGE TypeOperators #-}
20{-# LANGUAGE UndecidableInstances #-}
17{-# LANGUAGE UndecidableInstances #-}
18+{-# LANGUAGE PolyKinds #-}
19+{-# LANGUAGE DeriveFunctor #-}
20+{-# LANGUAGE StandaloneDeriving #-}
21+{-# LANGUAGE InstanceSigs #-}
22+{-# LANGUAGE MultiWayIf #-}
24+#ifdef USE_REFLEX_OPTIMIZER
25+{-# OPTIONS_GHC -fplugin=Reflex.Optimizer #-}
27+{-# OPTIONS_GHC -Wunused-binds #-}
21-- | This module is the implementation of the 'Spider' 'Reflex' engine. It uses
28-- | This module is the implementation of the 'Spider' 'Reflex' engine. It uses
22-- a graph traversal algorithm to propagate 'Event's and 'Behavior's.
29-- a graph traversal algorithm to propagate 'Event's and 'Behavior's.
23−module Reflex.Spider.Internal where
30+module Reflex.Spider.Internal (module Reflex.Spider.Internal) where
32+#if MIN_VERSION_base(4,10,0)
25−import Control.Applicative
33+import Control.Applicative (liftA2)
26import Control.Concurrent
35import Control.Concurrent
27import Control.Exception
36import Control.Exception
28−import Control.Monad hiding (forM, forM_, mapM, mapM_, sequence)
37+import Control.Monad hiding (forM, forM_, mapM, mapM_)
29import Control.Monad.Exception
38import Control.Monad.Exception
30−import Control.Monad.Identity hiding (forM, forM_, mapM, mapM_, sequence)
39+import Control.Monad.Identity hiding (forM, forM_, mapM, mapM_)
31import Control.Monad.Primitive
40import Control.Monad.Primitive
32−import Control.Monad.Reader hiding (forM, forM_, mapM, mapM_, sequence)
41+import Control.Monad.Reader.Class
42+import Control.Monad.IO.Class
43+import Control.Monad.ReaderIO
33import Control.Monad.Ref
44import Control.Monad.Ref
45+import Control.Monad.Fail (MonadFail)
46+import qualified Control.Monad.Fail as MonadFail
34import Data.Align
47import Data.Align
35import Data.Coerce
48import Data.Coerce
36−import Data.Dependent.Map (DMap, DSum (..))
49+import Data.Dependent.Map (DMap)
37import qualified Data.Dependent.Map as DMap
50import qualified Data.Dependent.Map as DMap
51+import Data.Dependent.Sum (DSum (..))
52+import Data.FastMutableIntMap (FastMutableIntMap, PatchIntMap (..))
53+import qualified Data.FastMutableIntMap as FastMutableIntMap
38import Data.Foldable hiding (concat, elem, sequence_)
54import Data.Foldable hiding (concat, elem, sequence_)
40import Data.Functor.Constant
55import Data.Functor.Constant
56+import Data.Functor.Misc
41import Data.Functor.Product
57import Data.Functor.Product
42import Data.GADT.Compare
58import Data.GADT.Compare
43import Data.IntMap.Strict (IntMap)
59import Data.IntMap.Strict (IntMap)
44import qualified Data.IntMap.Strict as IntMap
60import qualified Data.IntMap.Strict as IntMap
45import Data.IORef
61import Data.IORef
46−import Data.List hiding (foldl')
62+import Data.Kind (Type)
47−import Data.Maybe
63+import Data.Maybe hiding (mapMaybe)
48−import Data.Monoid ((<>))
64+import Data.Monoid (mempty, (<>))
49−import Data.Some (Some)
65+import Data.Proxy
50−import qualified Data.Some as Some
51import Data.These
66import Data.These
52import Data.Traversable
67import Data.Traversable
53−import Data.Type.Coercion
68+import Data.Type.Equality ((:~:)(Refl))
54−import Data.Word
69+import Data.Witherable (Filterable, mapMaybe)
55−import GHC.Exts
70+import GHC.Exts hiding (toList)
56import GHC.IORef (IORef (..))
71import GHC.IORef (IORef (..))
57import GHC.Stack
72import GHC.Stack
73+import Reflex.FastWeak
58import System.IO.Unsafe
74import System.IO.Unsafe
59import System.Mem.Weak
75import System.Mem.Weak
60import Unsafe.Coerce
76import Unsafe.Coerce
78+#ifdef MIN_VERSION_semialign
79+#if MIN_VERSION_these(0,8,0)
80+import Data.These.Combinators (justThese)
82+#if MIN_VERSION_semialign(1,1,0)
83+import Data.Zip (Zip (..))
62#ifdef DEBUG_CYCLES
87#ifdef DEBUG_CYCLES
63import Control.Monad.State hiding (forM, forM_, mapM, mapM_, sequence)
88import Control.Monad.State hiding (forM, forM_, mapM, mapM_, sequence)
64import Data.List.NonEmpty (NonEmpty (..), nonEmpty)
91import Data.List.NonEmpty (NonEmpty (..), nonEmpty)
65import qualified Data.List.NonEmpty as NonEmpty
92import qualified Data.List.NonEmpty as NonEmpty
66−import Data.Monoid (mempty)
67import Data.Tree (Forest, Tree (..), drawForest)
93import Data.Tree (Forest, Tree (..), drawForest)
68−#endif
94+import Data.List (isPrefixOf)
96+import Data.FastWeakBag (FastWeakBag, FastWeakBagTicket)
97+import qualified Data.FastWeakBag as FastWeakBag
99+import Data.Reflection
100+import Data.Some (Some(Some))
101+import Data.Type.Coercion
102+import Data.Profunctor.Unsafe ((#.), (.#))
70−import Data.WeakBag (WeakBag, WeakBagTicket)
103+import Data.WeakBag (WeakBag, WeakBagTicket, _weakBag_children)
71import qualified Data.WeakBag as WeakBag
104import qualified Data.WeakBag as WeakBag
105+import qualified Reflex.Class
72import qualified Reflex.Class as R
106import qualified Reflex.Class as R
73−import qualified Reflex.Host.Class as R
107+import qualified Reflex.Host.Class
108+import Reflex.NotReady.Class
110+import qualified Data.Patch.DMapWithMove as PatchDMapWithMove
111+import Reflex.PerformEvent.Base (PerformEventT)
113+#ifdef DEBUG_TRACE_EVENTS
114+import qualified Data.ByteString.Char8 as BS8
115+import System.IO (stderr)
116+import Data.List (isPrefixOf)
75−-- Note: must come last to silence warnings due to AMP on GHC < 7.10
119+-- TODO stdout might not be the best channel for debug output
76−import Prelude hiding (any, concat, mapM, mapM_, sequence)
120+debugStrLn :: String -> IO ()
121+debugStrLn = putStrLn
123+#ifdef DEBUG_TRACE_EVENTS
124+withStackOneLine :: (BS8.ByteString -> a) -> a
125+withStackOneLine expr = unsafePerformIO $ do
126+ stack <- currentCallStack
127+ return (expr . BS8.pack . unwords . dropInternal . reverse $ stack)
128+ where dropInternal = filterStack "Reflex.Spider.Internal"
78debugPropagate :: Bool
132debugPropagate :: Bool
@@ -82,31 +136,42 @@ debugInvalidateHeight :: Bool
82debugInvalidate :: Bool
136debugInvalidate :: Bool
84#ifdef DEBUG
138#ifdef DEBUG
86#define DEBUG_NODEIDS
139#define DEBUG_NODEIDS
141+#ifdef DEBUG_TRACE_PROPAGATION
88debugPropagate = True
142debugPropagate = True
144+debugPropagate = False
147+#ifdef DEBUG_TRACE_HEIGHT
148+debugInvalidateHeight = True
90debugInvalidateHeight = False
150debugInvalidateHeight = False
153+#ifdef DEBUG_TRACE_INVALIDATION
92debugInvalidate = True
154debugInvalidate = True
156+debugInvalidate = False
94class HasNodeId a where
159class HasNodeId a where
95 getNodeId :: a -> Int
160 getNodeId :: a -> Int
97−instance HasNodeId (Hold x p a) where
162+instance HasNodeId (CacheSubscribed x a) where
163+ getNodeId = _cacheSubscribed_nodeId
165+instance HasNodeId (FanInt x a) where
98− getNodeId = holdNodeId
166+ getNodeId = _fanInt_nodeId
100−instance HasNodeId (PushSubscribed x a b) where
168+instance HasNodeId (Hold x p) where
101− getNodeId = pushSubscribedNodeId
169+ getNodeId = holdNodeId
103instance HasNodeId (SwitchSubscribed x a) where
171instance HasNodeId (SwitchSubscribed x a) where
104 getNodeId = switchSubscribedNodeId
172 getNodeId = switchSubscribedNodeId
106−instance HasNodeId (MergeSubscribed x a) where
107− getNodeId = mergeSubscribedNodeId
109−instance HasNodeId (FanSubscribed x a) where
174+instance HasNodeId (FanSubscribed x v a) where
110 getNodeId = fanSubscribedNodeId
175 getNodeId = fanSubscribedNodeId
112instance HasNodeId (CoincidenceSubscribed x a) where
177instance HasNodeId (CoincidenceSubscribed x a) where
@@ -120,41 +185,16 @@ instance HasNodeId (Pull x a) where
121{-# INLINE showNodeId #-}
186{-# INLINE showNodeId #-}
122showNodeId :: HasNodeId a => a -> String
187showNodeId :: HasNodeId a => a -> String
123−showNodeId = ("#"<>) . show . getNodeId
188+showNodeId = showNodeId' . getNodeId
125−showSubscriberType :: Subscriber x a -> String
190+showNodeId' :: Int -> String
126−showSubscriberType = \case
191+showNodeId' = ("#"<>) . show
127− SubscriberPush _ _ -> "SubscriberPush"
192+
128− SubscriberMerge _ _ -> "SubscriberMerge"
129− SubscriberFan _ -> "SubscriberFan"
130− SubscriberMergeChange _ -> "SubscriberMergeChange"
131− SubscriberHold _ -> "SubscriberHold"
132− SubscriberHoldIdentity _ -> "SubscriberHoldIdentity"
133− SubscriberSwitch _ -> "SubscriberSwitch"
134− SubscriberCoincidenceOuter _ -> "SubscriberCoincidenceOuter"
135− SubscriberCoincidenceInner _ -> "SubscriberCoincidenceInner"
136− SubscriberHandle -> "SubscriberHandle"
138−showEventType :: Event x a -> String
139−showEventType = \case
140− EventRoot _ _ -> "EventRoot"
141− EventNever -> "EventNever"
142− EventPush _ -> "EventPush"
143− EventMerge _ -> "EventMerge"
144− EventFan _ _ -> "EventFan"
145− EventSwitch _ -> "EventSwitch"
146− EventCoincidence _ -> "EventCoincidence"
147− EventHold _ -> "EventHold"
148− EventDyn _ -> "EventDyn"
149− EventHoldIdentity _ -> "EventHoldIdentity"
150− EventDynIdentity _ -> "EventDynIdentity"
154debugPropagate = False
196debugPropagate = False
156debugInvalidateHeight = False
197debugInvalidateHeight = False
158debugInvalidate = False
198debugInvalidate = False
160-- This must be inline, or error messages will cause memory leaks due to retaining the node in question
200-- This must be inline, or error messages will cause memory leaks due to retaining the node in question
@@ -162,6 +202,10 @@ debugInvalidate = False
162showNodeId :: a -> String
202showNodeId :: a -> String
163showNodeId _ = ""
203showNodeId _ = ""
205+{-# INLINE showNodeId' #-}
206+showNodeId' :: Int -> String
167#ifdef DEBUG_NODEIDS
211#ifdef DEBUG_NODEIDS
@@ -171,93 +215,200 @@ nextNodeIdRef = unsafePerformIO $ newIORef 1
172newNodeId :: IO Int
216newNodeId :: IO Int
173newNodeId = atomicModifyIORef' nextNodeIdRef $ \n -> (succ n, n)
217newNodeId = atomicModifyIORef' nextNodeIdRef $ \n -> (succ n, n)
175−{-# NOINLINE unsafeNodeId #-}
176−unsafeNodeId :: a -> Int
177−unsafeNodeId a = unsafePerformIO $ do
220+--------------------------------------------------------------------------------
222+--------------------------------------------------------------------------------
224+--NB: Once you subscribe to an Event, you must always hold on the the WHOLE EventSubscription you get back
225+-- If you do not retain the subscription, you may be prematurely unsubscribed from the parent event.
226+data EventSubscription x = EventSubscription
227+ { _eventSubscription_unsubscribe :: !(IO ())
228+ , _eventSubscription_subscribed :: {-# UNPACK #-} !(EventSubscribed x)
231+unsubscribe :: EventSubscription x -> IO ()
232+unsubscribe (EventSubscription u _) = u
182--------------------------------------------------------------------------------
234--------------------------------------------------------------------------------
184--------------------------------------------------------------------------------
236--------------------------------------------------------------------------------
238+newtype Event x a = Event { unEvent :: Subscriber x a -> EventM x (EventSubscription x, Maybe a) }
240+{-# INLINE subscribeAndRead #-}
186−newtype Event x a = Event { subscribeAndRead :: Subscriber x a -> EventM x (EventSubscription x, Maybe a) }
241+subscribeAndRead :: Event x a -> Subscriber x a -> EventM x (EventSubscription x, Maybe a)
242+subscribeAndRead = unEvent
245+"cacheEvent/cacheEvent" forall e. cacheEvent (cacheEvent e) = cacheEvent e
246+"cacheEvent/pushCheap" forall f e. pushCheap f (cacheEvent e) = cacheEvent (pushCheap f e)
247+"hold/cacheEvent" forall f e. hold f (cacheEvent e) = hold f e
188-- | Construct an 'Event' equivalent to that constructed by 'push', but with no
250-- | Construct an 'Event' equivalent to that constructed by 'push', but with no
189-- caching; if the computation function is very cheap, this is (much) more
251-- caching; if the computation function is very cheap, this is (much) more
190-- efficient than 'push'
252-- efficient than 'push'
191−{-# INLINABLE pushCheap #-}
253+{-# INLINE [1] pushCheap #-}
192−pushCheap :: (a -> ComputeM x (Maybe b)) -> Event x a -> Event x b
254+pushCheap :: HasSpiderTimeline x => (a -> ComputeM x (Maybe b)) -> Event x a -> Event x b
193−pushCheap f e = Event $ \sub -> do
255+pushCheap !f e = Event $ \sub -> do
194− (subscription, occ) <- subscribeAndRead e $ sub
256+ (subscription, occ) <- subscribeAndRead e $ debugSubscriber' "push" $ sub
195 { subscriberPropagate = \a -> do
257 { subscriberPropagate = \a -> do
196− mb <- runComputeM $ f a
258+ mb <- f a
197 mapM_ (subscriberPropagate sub) mb
259 mapM_ (subscriberPropagate sub) mb
199− occ' <- join <$> mapM (runComputeM . f) occ
261+ occ' <- join <$> mapM f occ
200 return (subscription, occ')
262 return (subscription, occ')
264+-- | A subscriber that never triggers other 'Event's
265+{-# INLINE terminalSubscriber #-}
266+terminalSubscriber :: (a -> EventM x ()) -> Subscriber x a
267+terminalSubscriber p = Subscriber
268+ { subscriberPropagate = p
269+ , subscriberInvalidateHeight = \_ -> return ()
270+ , subscriberRecalculateHeight = \_ -> return ()
273+-- | Subscribe to an Event only for the duration of one occurrence
274+{-# INLINE subscribeAndReadHead #-}
275+subscribeAndReadHead :: HasSpiderTimeline x => Event x a -> Subscriber x a -> EventM x (EventSubscription x, Maybe a)
276+subscribeAndReadHead e sub = do
277+ subscriptionRef <- liftIO $ newIORef $ error "subscribeAndReadHead: not initialized"
278+ (subscription, occ) <- subscribeAndRead e $ debugSubscriber' "head" $ sub
279+ { subscriberPropagate = \a -> do
280+ liftIO $ unsubscribe =<< readIORef subscriptionRef
281+ subscriberPropagate sub a
283+ liftIO $ case occ of
284+ Nothing -> writeIORef subscriptionRef $! subscription
285+ Just _ -> unsubscribe subscription
286+ return (subscription, occ)
288+--TODO: Make this lazy in its input event
289+headE :: (MonadIO m, Defer (SomeMergeInit x) m, HasSpiderTimeline x) => Event x a -> m (Event x a)
291+ parent <- liftIO $ newIORef $ Just originalE
292+ defer $ SomeMergeInit $ do --TODO: Rename SomeMergeInit appropriately
293+ let clearParent = liftIO $ writeIORef parent Nothing
294+ (_, occ) <- subscribeAndReadHead originalE $ terminalSubscriber $ const clearParent
295+ when (isJust occ) clearParent
296+ return $ Event $ \sub ->
297+ liftIO (readIORef parent) >>= \case
298+ Nothing -> subscribeAndReadNever
299+ Just e -> subscribeAndReadHead e sub
202data CacheSubscribed x a
301data CacheSubscribed x a
203− = CacheSubscribed { _cacheSubscribed_subscribers :: {-# UNPACK #-} !(WeakBag (Subscriber x a))
302+ = CacheSubscribed { _cacheSubscribed_subscribers :: {-# UNPACK #-} !(FastWeakBag (Subscriber x a))
204− , _cacheSubscribed_weakSelf :: {-# UNPACK #-} !(IORef (Weak (CacheSubscribed x a)))
205 , _cacheSubscribed_parent :: {-# UNPACK #-} !(EventSubscription x)
303 , _cacheSubscribed_parent :: {-# UNPACK #-} !(EventSubscription x)
206− , _cacheSubscribed_cached :: {-# UNPACK #-} !(IORef (Maybe (CacheSubscribed x a)))
207 , _cacheSubscribed_occurrence :: {-# UNPACK #-} !(IORef (Maybe a))
304 , _cacheSubscribed_occurrence :: {-# UNPACK #-} !(IORef (Maybe a))
306+ , _cacheSubscribed_nodeId :: {-# UNPACK #-} !Int
310+nowSpiderEventM :: (HasSpiderTimeline x) => EventM x (R.Event (SpiderTimeline x) ())
314+now :: (MonadIO m, Defer (Some Clear) m, HasSpiderTimeline x
317+ nowOrNot <- liftIO $ newIORef $ Just ()
318+ scheduleClear nowOrNot
319+ return . Event $ \_ -> do
320+ occ <- liftIO . readIORef $ nowOrNot
321+ return ( EventSubscription (return ()) eventSubscribedNow
210-- | Construct an 'Event' whose value is guaranteed not to be recomputed
325-- | Construct an 'Event' whose value is guaranteed not to be recomputed
211-- repeatedly
326-- repeatedly
213--TODO: Try a caching strategy where we subscribe directly to the parent when
328--TODO: Try a caching strategy where we subscribe directly to the parent when
214−--there's only one subscriber, and then build our own WeakBag only when a second
329+--there's only one subscriber, and then build our own FastWeakBag only when a second
215--subscriber joins
330--subscriber joins
216−{-# INLINABLE cacheEvent #-}
331+{-# NOINLINE [0] cacheEvent #-}
217−cacheEvent :: Event x a -> Event x a
332+cacheEvent :: forall x a. HasSpiderTimeline x => Event x a -> Event x a
218−cacheEvent e = Event $ \sub -> do
333+cacheEvent e =
219− let !mSubscribedRef = unsafeNewIORef e Nothing
334+#ifdef DEBUG_TRACE_EVENTS
335+ withStackOneLine $ \callSite -> Event $
339+ unsafePerformIO $ do
340+ mSubscribedRef :: IORef (FastWeak (CacheSubscribed x a))
341+ <- newIORef emptyFastWeak
342+ pure $ \sub -> {-# SCC "cacheEvent" #-} do
343+#ifdef DEBUG_TRACE_EVENTS
344+ unless (BS8.null callSite) $ liftIO $ BS8.hPutStrLn stderr callSite
220− mSubscribed <- liftIO $ readIORef mSubscribedRef
346+ subscribedTicket <- liftIO (readIORef mSubscribedRef >>= getFastWeakTicket) >>= \case
221− case mSubscribed of
347+ Just subscribedTicket -> return subscribedTicket
350+ nodeId <- liftIO newNodeId
352+ subscribers <- liftIO FastWeakBag.empty
353+ occRef <- liftIO $ newIORef Nothing -- This should never be read prior to being set below
355+ (parentSub, occ) <- subscribeAndRead e $ debugSubscriber' ("cacheEvent" <> showNodeId' nodeId) $ Subscriber
357+ (parentSub, occ) <- subscribeAndRead e $ Subscriber
359+ { subscriberPropagate = \a -> do
360+ liftIO $ writeIORef occRef (Just a)
361+ scheduleClear occRef
362+ propagateFast a subscribers
363+ , subscriberInvalidateHeight = FastWeakBag.traverse_ subscribers . invalidateSubscriberHeight
364+ , subscriberRecalculateHeight = FastWeakBag.traverse_ subscribers . recalculateSubscriberHeight
366+ when (isJust occ) $ do
367+ liftIO $ writeIORef occRef occ -- Set the initial value of occRef; we don't need to do this if occ is Nothing
368+ scheduleClear occRef
222− Just subscribed -> liftIO $ do
369+ let !subscribed = CacheSubscribed
370+ { _cacheSubscribed_subscribers = subscribers
371+ , _cacheSubscribed_parent = parentSub
372+ , _cacheSubscribed_occurrence = occRef
374+ , _cacheSubscribed_nodeId = nodeId
377+ subscribedTicket <- liftIO $ mkFastWeakTicket subscribed
378+ liftIO $ writeIORef mSubscribedRef =<< getFastWeakTicketWeak subscribedTicket
379+ return subscribedTicket
380+ liftIO $ cacheSubscription sub mSubscribedRef subscribedTicket
382+cacheSubscription :: Subscriber x a -> IORef (FastWeak (CacheSubscribed x a))
383+ -> FastWeakTicket (CacheSubscribed x a) -> IO (EventSubscription x, Maybe a)
384+cacheSubscription sub mSubscribedRef subscribedTicket = do
385+ subscribed <- getFastWeakTicketValue subscribedTicket
223− ticket <- WeakBag.insert sub (_cacheSubscribed_subscribers subscribed) (_cacheSubscribed_weakSelf subscribed) cleanupCacheSubscribed
386+ ticket <- FastWeakBag.insert sub $ _cacheSubscribed_subscribers subscribed
224− occ <- readIORef $ _cacheSubscribed_occurrence subscribed
387+ occ <- readIORef $ _cacheSubscribed_occurrence subscribed
389+ let parentSub = _cacheSubscribed_parent subscribed
390+ es = EventSubscription
391+ { _eventSubscription_unsubscribe = do
392+ FastWeakBag.remove ticket
394+ isEmpty <- FastWeakBag.isEmpty $ _cacheSubscribed_subscribers subscribed
396+ writeIORef mSubscribedRef emptyFastWeak
397+ unsubscribe parentSub
399+ touch subscribedTicket
225− let es = EventSubscribed
400+ , _eventSubscription_subscribed = EventSubscribed
226− { eventSubscribedHeightRef = eventSubscribedHeightRef $ _eventSubscription_subscribed $ _cacheSubscribed_parent subscribed
401+ { eventSubscribedHeightRef = eventSubscribedHeightRef $ _eventSubscription_subscribed parentSub
227− , eventSubscribedRetained = toAny subscribed
402+ , eventSubscribedRetained = toAny subscribedTicket
228− }
403+#ifdef DEBUG_CYCLES
229− return (EventSubscription (Just ticket) es, occ)
404+ , eventSubscribedGetParents = return [_eventSubscription_subscribed parentSub]
230− Nothing -> do
405+ , eventSubscribedHasOwnHeightRef = False
231− weakSelf <- liftIO $ newIORef $ error "cacheEvent: weakSelf not yet intialized"
406+ , eventSubscribedWhoCreated = whoCreatedIORef mSubscribedRef
232− (subscribers, ticket) <- liftIO $ WeakBag.singleton sub weakSelf cleanupCacheSubscribed
407+#endif
233− occRef <- liftIO $ newIORef undefined
408+ }
234− (parentSub, occ) <- subscribeAndRead e $ Subscriber
235− { subscriberPropagate = \a -> do
236− liftIO $ writeIORef occRef $ Just a
237− scheduleClear occRef
238− propagate a subscribers
239− , subscriberInvalidateHeight = \old -> do
240− WeakBag.traverse subscribers $ invalidateSubscriberHeight old
241− , subscriberRecalculateHeight = \new -> do
242− WeakBag.traverse subscribers $ recalculateSubscriberHeight new
244− liftIO $ writeIORef occRef occ
410+ return (es, occ)
245− when (isJust occ) $ scheduleClear occRef
246− let !subscribed = CacheSubscribed
247− { _cacheSubscribed_subscribers = subscribers
248− , _cacheSubscribed_weakSelf = weakSelf
249− , _cacheSubscribed_parent = parentSub
250− , _cacheSubscribed_cached = mSubscribedRef
251− , _cacheSubscribed_occurrence = occRef
253− liftIO $ writeIORef mSubscribedRef $ Just subscribed
254− liftIO $ writeIORef weakSelf =<< evaluate =<< mkWeakPtrWithDebug subscribed "PushSubscribed"
255− return (EventSubscription (Just ticket) (EventSubscribed (eventSubscribedHeightRef $ _eventSubscription_subscribed parentSub) (toAny subscribed)), occ)
257−cleanupCacheSubscribed :: CacheSubscribed x a -> IO ()
258−cleanupCacheSubscribed self = do
259− unsubscribe $ _cacheSubscribed_parent self
260− writeIORef (_cacheSubscribed_cached self) Nothing
262subscribe :: Event x a -> Subscriber x a -> EventM x (EventSubscription x)
413subscribe :: Event x a -> Subscriber x a -> EventM x (EventSubscription x)
263subscribe e s = fst <$> subscribeAndRead e s
414subscribe e s = fst <$> subscribeAndRead e s
@@ -267,34 +418,34 @@ wrap :: MonadIO m => (t -> EventSubscribed x) -> (Subscriber x a -> m (WeakBagTi
267wrap tag getSpecificSubscribed sub = do
418wrap tag getSpecificSubscribed sub = do
268 (sln, subd, occ) <- getSpecificSubscribed sub
419 (sln, subd, occ) <- getSpecificSubscribed sub
269 let es = tag subd
420 let es = tag subd
270− return (EventSubscription (Just sln) es, occ)
421+ return (EventSubscription (WeakBag.remove sln >> touch sln) es, occ)
272−eventRoot :: GCompare k => k a -> Root x k -> Event x a
423+eventRoot :: (GCompare k, HasSpiderTimeline x) => k a -> Root x k -> Event x a
273eventRoot !k !r = Event $ wrap eventSubscribedRoot $ liftIO . getRootSubscribed k r
424eventRoot !k !r = Event $ wrap eventSubscribedRoot $ liftIO . getRootSubscribed k r
275−eventNever :: Event x a
426+subscribeAndReadNever :: EventM x (EventSubscription x, Maybe a)
276−eventNever = Event $ \_ -> return (EventSubscription Nothing eventSubscribedNever, Nothing)
427+subscribeAndReadNever = return (EventSubscription (return ()) eventSubscribedNever, Nothing)
278−eventMerge :: (GCompare k, a ~ DMap k Identity) => Merge x k -> Event x a
429+eventNever :: Event x a
279−eventMerge !m = Event $ wrap eventSubscribedMerge $ getMergeSubscribed m
430+eventNever = Event $ const subscribeAndReadNever
281−eventFan :: GCompare k => k a -> Fan x k -> Event x a
432+eventFan :: (GCompare k, HasSpiderTimeline x) => k a -> Fan x k v -> Event x (v a)
282eventFan !k !f = Event $ wrap eventSubscribedFan $ getFanSubscribed k f
433eventFan !k !f = Event $ wrap eventSubscribedFan $ getFanSubscribed k f
284−eventSwitch :: Switch x a -> Event x a
435+eventSwitch :: HasSpiderTimeline x => Switch x a -> Event x a
285eventSwitch !s = Event $ wrap eventSubscribedSwitch $ getSwitchSubscribed s
436eventSwitch !s = Event $ wrap eventSubscribedSwitch $ getSwitchSubscribed s
287−eventCoincidence :: Coincidence x a -> Event x a
438+eventCoincidence :: HasSpiderTimeline x => Coincidence x a -> Event x a
288eventCoincidence !c = Event $ wrap eventSubscribedCoincidence $ getCoincidenceSubscribed c
439eventCoincidence !c = Event $ wrap eventSubscribedCoincidence $ getCoincidenceSubscribed c
290eventHold :: Hold x p -> Event x p
441eventHold :: Hold x p -> Event x p
291eventHold !h = Event $ subscribeHoldEvent h
442eventHold !h = Event $ subscribeHoldEvent h
293−eventDyn :: R.Patch p => Dyn x p -> Event x p
444+eventDyn :: (HasSpiderTimeline x, Patch p) => Dyn x p -> Event x p
294eventDyn !j = Event $ \sub -> getDynHold j >>= \h -> subscribeHoldEvent h sub
445eventDyn !j = Event $ \sub -> getDynHold j >>= \h -> subscribeHoldEvent h sub
296{-# INLINE subscribeCoincidenceInner #-}
447{-# INLINE subscribeCoincidenceInner #-}
297−subscribeCoincidenceInner :: CanSubscribe x m => Event x a -> Height -> CoincidenceSubscribed x a -> m (Maybe a, Height, EventSubscribed x)
448+subscribeCoincidenceInner :: HasSpiderTimeline x => Event x a -> Height -> CoincidenceSubscribed x a -> EventM x (Maybe a, Height, EventSubscribed x)
298subscribeCoincidenceInner inner outerHeight subscribedUnsafe = do
449subscribeCoincidenceInner inner outerHeight subscribedUnsafe = do
299 subInner <- liftIO $ newSubscriberCoincidenceInner subscribedUnsafe
450 subInner <- liftIO $ newSubscriberCoincidenceInner subscribedUnsafe
300 (subscription@(EventSubscription _ innerSubd), innerOcc) <- subscribeAndRead inner subInner
451 (subscription@(EventSubscription _ innerSubd), innerOcc) <- subscribeAndRead inner subInner
@@ -313,150 +464,75 @@ data Subscriber x a = Subscriber
313 , subscriberRecalculateHeight :: !(Height -> IO ())
464 , subscriberRecalculateHeight :: !(Height -> IO ())
316−--TODO: Move this comment to WeakBag
317−-- These function are constructor functions that are marked NOINLINE so they are
318−-- opaque to GHC. If we do not do this, then GHC will sometimes fuse the constructor away
319−-- so any weak references that are attached to the constructors will have their
320−-- finalizer run. Using the opaque constructor, does not see the
321−-- constructor application, so it behaves like an IORef and cannot be fused away.
323−-- The result is also evaluated to WHNF, since forcing a thunk invalidates
324−-- the weak pointer to it in some cases.
326−newSubscriberHold :: R.Patch p => Hold x p -> IO (Subscriber x p)
467+newSubscriberHold :: (HasSpiderTimeline x, Patch p) => Hold x p -> IO (Subscriber x p)
327newSubscriberHold h = return $ Subscriber
468newSubscriberHold h = return $ Subscriber
328 { subscriberPropagate = {-# SCC "traverseHold" #-} propagateSubscriberHold h
469 { subscriberPropagate = {-# SCC "traverseHold" #-} propagateSubscriberHold h
329 , subscriberInvalidateHeight = \_ -> return ()
470 , subscriberInvalidateHeight = \_ -> return ()
330 , subscriberRecalculateHeight = \_ -> return ()
471 , subscriberRecalculateHeight = \_ -> return ()
333−newSubscriberMerge :: GCompare k => k a -> MergeSubscribed x k -> IO (Subscriber x a)
334−newSubscriberMerge k subscribed = return $ Subscriber
335− { subscriberPropagate = \a -> {-# SCC "traverseMerge" #-} do
336− tracePropagate $ "SubscriberMerge" <> showNodeId subscribed
337− oldM <- liftIO $ readIORef $ mergeSubscribedAccum subscribed
338− let newM = DMap.insertWith (error $ "Same key fired multiple times for Merge" <> showNodeId subscribed) k (Identity a) oldM
339− tracePropagate $ " DMap.size oldM = " <> show (DMap.size oldM) <> "; DMap.size newM = " <> show (DMap.size newM)
340− liftIO $ writeIORef (mergeSubscribedAccum subscribed) $! newM
341− when (DMap.null oldM) $ do -- Only schedule the firing once
342− height <- liftIO $ readIORef $ mergeSubscribedHeight subscribed
343− --TODO: assertions about height
344− currentHeight <- getCurrentHeight
345− when (height <= currentHeight) $ do
346− if height /= invalidHeight
348− myStack <- liftIO $ whoCreatedIORef $ mergeSubscribedCachedSubscribed subscribed
349− error $ "Height (" ++ show height ++ ") is not greater than current height (" ++ show currentHeight ++ ")\n" ++ unlines (reverse myStack)
352− nodesInvolvedInCycle <- walkInvalidHeightParents $ eventSubscribedMerge subscribed
353− stacks <- forM nodesInvolvedInCycle $ \(Some.This es) -> whoCreatedEventSubscribed es
354− let cycleInfo = ":\n" <> drawForest (listsToForest stacks)
358− error $ "Causality loop found" <> cycleInfo
359− scheduleMerge height subscribed
360− , subscriberInvalidateHeight = \old -> do
361− when debugInvalidateHeight $ putStrLn $ "invalidateSubscriberHeight: SubscriberMerge" <> showNodeId subscribed
362− removeMergeHeight old subscribed
363− invalidateMergeHeight subscribed
364− when debugInvalidateHeight $ putStrLn $ "invalidateSubscriberHeight: SubscriberMerge" <> showNodeId subscribed <> " done"
365− , subscriberRecalculateHeight = \new -> do
366− when debugInvalidateHeight $ putStrLn $ "recalculateSubscriberHeight: SubscriberMerge" <> showNodeId subscribed
367− addMergeHeight new subscribed
368− revalidateMergeHeight subscribed
369− when debugInvalidateHeight $ putStrLn $ "recalculateSubscriberHeight: SubscriberMerge" <> showNodeId subscribed <> " done"
372−newSubscriberMergeChange :: GCompare k => MergeSubscribed x k -> IO (Subscriber x (R.PatchDMap k (Event x)))
373−newSubscriberMergeChange subscribed = return $ Subscriber
374− { subscriberPropagate = \a -> {-# SCC "traverseMergeChange" #-} do
375− tracePropagate $ "SubscriberMerge" <> showNodeId subscribed
376− defer $ SomeMergeUpdate a subscribed
377− , subscriberInvalidateHeight = \_ -> return ()
378− , subscriberRecalculateHeight = \_ -> return ()
381−newSubscriberFan :: GCompare k => FanSubscribed x k -> IO (Subscriber x (DMap k Identity))
474+newSubscriberFan :: forall x k v. (HasSpiderTimeline x, GCompare k) => FanSubscribed x k v -> IO (Subscriber x (DMap k v))
382−newSubscriberFan subscribed = return $ Subscriber
475+newSubscriberFan subscribed = debugSubscriber ("SubscriberFan " <> showNodeId subscribed) $ Subscriber
383 { subscriberPropagate = \a -> {-# SCC "traverseFan" #-} do
476 { subscriberPropagate = \a -> {-# SCC "traverseFan" #-} do
384 subs <- liftIO $ readIORef $ fanSubscribedSubscribers subscribed
477 subs <- liftIO $ readIORef $ fanSubscribedSubscribers subscribed
385− tracePropagate $ "SubscriberFan" <> showNodeId subscribed <> ": " ++ show (DMap.size subs) ++ " keys subscribed, " ++ show (DMap.size a) ++ " keys firing"
478+ tracePropagate (Proxy :: Proxy x) $ show (DMap.size subs) <> " keys subscribed, " <> show (DMap.size a) <> " keys firing"
386 liftIO $ writeIORef (fanSubscribedOccurrence subscribed) $ Just a
479 liftIO $ writeIORef (fanSubscribedOccurrence subscribed) $ Just a
387 scheduleClear $ fanSubscribedOccurrence subscribed
480 scheduleClear $ fanSubscribedOccurrence subscribed
388− let f _ (Pair (Identity v) subsubs) = do
481+ let f _ (Pair v subsubs) = do
389 propagate v $ _fanSubscribedChildren_list subsubs
482 propagate v $ _fanSubscribedChildren_list subsubs
390 return $ Constant ()
483 return $ Constant ()
391 _ <- DMap.traverseWithKey f $ DMap.intersectionWithKey (\_ -> Pair) a subs --TODO: Would be nice to have DMap.traverse_
484 _ <- DMap.traverseWithKey f $ DMap.intersectionWithKey (\_ -> Pair) a subs --TODO: Would be nice to have DMap.traverse_
392 return ()
485 return ()
393 , subscriberInvalidateHeight = \old -> do
486 , subscriberInvalidateHeight = \old -> do
394− when debugInvalidateHeight $ putStrLn $ "invalidateSubscriberHeight: SubscriberFan" <> showNodeId subscribed
395 subscribers <- readIORef $ fanSubscribedSubscribers subscribed
487 subscribers <- readIORef $ fanSubscribedSubscribers subscribed
396− forM_ (DMap.toList subscribers) $ \(_ :=> v) -> WeakBag.traverse (_fanSubscribedChildren_list v) $ invalidateSubscriberHeight old
488+ forM_ (DMap.toList subscribers) $ \(_ :=> v) -> WeakBag.traverse_ (_fanSubscribedChildren_list v) $ invalidateSubscriberHeight old
397− when debugInvalidateHeight $ putStrLn $ "invalidateSubscriberHeight: SubscriberFan" <> showNodeId subscribed <> " done"
398 , subscriberRecalculateHeight = \new -> do
489 , subscriberRecalculateHeight = \new -> do
399− when debugInvalidateHeight $ putStrLn $ "recalculateSubscriberHeight: SubscriberFan" <> showNodeId subscribed
400 subscribers <- readIORef $ fanSubscribedSubscribers subscribed
490 subscribers <- readIORef $ fanSubscribedSubscribers subscribed
401− forM_ (DMap.toList subscribers) $ \(_ :=> v) -> WeakBag.traverse (_fanSubscribedChildren_list v) $ recalculateSubscriberHeight new
491+ forM_ (DMap.toList subscribers) $ \(_ :=> v) -> WeakBag.traverse_ (_fanSubscribedChildren_list v) $ recalculateSubscriberHeight new
402− when debugInvalidateHeight $ putStrLn $ "recalculateSubscriberHeight: SubscriberFan" <> showNodeId subscribed <> " done"
405−newSubscriberSwitch :: SwitchSubscribed x a -> IO (Subscriber x a)
494+newSubscriberSwitch :: forall x a. HasSpiderTimeline x => SwitchSubscribed x a -> IO (Subscriber x a)
406−newSubscriberSwitch subscribed = return $ Subscriber
495+newSubscriberSwitch subscribed = debugSubscriber ("SubscriberCoincidenceOuter" <> showNodeId subscribed) $ Subscriber
407 { subscriberPropagate = \a -> {-# SCC "traverseSwitch" #-} do
496 { subscriberPropagate = \a -> {-# SCC "traverseSwitch" #-} do
408− tracePropagate $ "SubscriberSwitch" <> showNodeId subscribed
409 liftIO $ writeIORef (switchSubscribedOccurrence subscribed) $ Just a
497 liftIO $ writeIORef (switchSubscribedOccurrence subscribed) $ Just a
410 scheduleClear $ switchSubscribedOccurrence subscribed
498 scheduleClear $ switchSubscribedOccurrence subscribed
411 propagate a $ switchSubscribedSubscribers subscribed
499 propagate a $ switchSubscribedSubscribers subscribed
412 , subscriberInvalidateHeight = \_ -> do
500 , subscriberInvalidateHeight = \_ -> do
413− when debugInvalidateHeight $ putStrLn $ "invalidateSubscriberHeight: SubscriberSwitch" <> showNodeId subscribed
414 oldHeight <- readIORef $ switchSubscribedHeight subscribed
501 oldHeight <- readIORef $ switchSubscribedHeight subscribed
415 when (oldHeight /= invalidHeight) $ do
502 when (oldHeight /= invalidHeight) $ do
416 writeIORef (switchSubscribedHeight subscribed) $! invalidHeight
503 writeIORef (switchSubscribedHeight subscribed) $! invalidHeight
417− WeakBag.traverse (switchSubscribedSubscribers subscribed) $ invalidateSubscriberHeight oldHeight
504+ WeakBag.traverse_ (switchSubscribedSubscribers subscribed) $ invalidateSubscriberHeight oldHeight
418− when debugInvalidateHeight $ putStrLn $ "invalidateSubscriberHeight: SubscriberSwitch" <> showNodeId subscribed <> " done"
419− , subscriberRecalculateHeight = \new -> do
505+ , subscriberRecalculateHeight = (`updateSwitchHeight` subscribed)
420− when debugInvalidateHeight $ putStrLn $ "recalculateSubscriberHeight: SubscriberSwitch" <> showNodeId subscribed
421− updateSwitchHeight new subscribed
422− when debugInvalidateHeight $ putStrLn $ "recalculateSubscriberHeight: SubscriberSwitch" <> showNodeId subscribed <> " done"
425−newSubscriberCoincidenceOuter :: CoincidenceSubscribed x b -> IO (Subscriber x (Event x b))
508+newSubscriberCoincidenceOuter :: forall x b. HasSpiderTimeline x => CoincidenceSubscribed x b -> IO (Subscriber x (Event x b))
426−newSubscriberCoincidenceOuter subscribed = return $ Subscriber
509+newSubscriberCoincidenceOuter subscribed = debugSubscriber ("SubscriberCoincidenceOuter" <> showNodeId subscribed) $ Subscriber
427 { subscriberPropagate = \a -> {-# SCC "traverseCoincidenceOuter" #-} do
510 { subscriberPropagate = \a -> {-# SCC "traverseCoincidenceOuter" #-} do
428− tracePropagate $ "SubscriberCoincidenceOuter" <> showNodeId subscribed
429 outerHeight <- liftIO $ readIORef $ coincidenceSubscribedHeight subscribed
511 outerHeight <- liftIO $ readIORef $ coincidenceSubscribedHeight subscribed
430− tracePropagate $ " outerHeight = " <> show outerHeight
512+ tracePropagate (Proxy :: Proxy x) $ " outerHeight = " <> show outerHeight
431 (occ, innerHeight, innerSubd) <- subscribeCoincidenceInner a outerHeight subscribed
513 (occ, innerHeight, innerSubd) <- subscribeCoincidenceInner a outerHeight subscribed
432− tracePropagate $ " isJust occ = " <> show (isJust occ)
514+ tracePropagate (Proxy :: Proxy x) $ " isJust occ = " <> show (isJust occ)
433− tracePropagate $ " innerHeight = " <> show innerHeight
515+ tracePropagate (Proxy :: Proxy x) $ " innerHeight = " <> show innerHeight
434 liftIO $ writeIORef (coincidenceSubscribedInnerParent subscribed) $ Just innerSubd
517 liftIO $ writeIORef (coincidenceSubscribedInnerParent subscribed) $ Just innerSubd
435 scheduleClear $ coincidenceSubscribedInnerParent subscribed
518 scheduleClear $ coincidenceSubscribedInnerParent subscribed
436 case occ of
519 case occ of
437− Nothing -> do
520+ Nothing ->
438 when (innerHeight > outerHeight) $ liftIO $ do -- If the event fires, it will fire at a later height
521 when (innerHeight > outerHeight) $ liftIO $ do -- If the event fires, it will fire at a later height
439 writeIORef (coincidenceSubscribedHeight subscribed) $! innerHeight
522 writeIORef (coincidenceSubscribedHeight subscribed) $! innerHeight
440− WeakBag.traverse (coincidenceSubscribedSubscribers subscribed) $ invalidateSubscriberHeight outerHeight
523+ WeakBag.traverse_ (coincidenceSubscribedSubscribers subscribed) $ invalidateSubscriberHeight outerHeight
441− WeakBag.traverse (coincidenceSubscribedSubscribers subscribed) $ recalculateSubscriberHeight innerHeight
524+ WeakBag.traverse_ (coincidenceSubscribedSubscribers subscribed) $ recalculateSubscriberHeight innerHeight
442 Just o -> do -- Since it's already firing, no need to adjust height
525 Just o -> do -- Since it's already firing, no need to adjust height
443 liftIO $ writeIORef (coincidenceSubscribedOccurrence subscribed) occ
526 liftIO $ writeIORef (coincidenceSubscribedOccurrence subscribed) occ
444 scheduleClear $ coincidenceSubscribedOccurrence subscribed
527 scheduleClear $ coincidenceSubscribedOccurrence subscribed
445 propagate o $ coincidenceSubscribedSubscribers subscribed
528 propagate o $ coincidenceSubscribedSubscribers subscribed
446− , subscriberInvalidateHeight = \_ -> do
447− when debugInvalidateHeight $ putStrLn $ "invalidateSubscriberHeight: SubscriberCoincidenceOuter" <> showNodeId subscribed
448− invalidateCoincidenceHeight subscribed
529+ , subscriberInvalidateHeight = \_ -> invalidateCoincidenceHeight subscribed
449− when debugInvalidateHeight $ putStrLn $ "invalidateSubscriberHeight: SubscriberCoincidenceOuter" <> showNodeId subscribed <> " done"
450− , subscriberRecalculateHeight = \_ -> do
451− when debugInvalidateHeight $ putStrLn $ "recalculateSubscriberHeight: SubscriberCoincidenceOuter" <> showNodeId subscribed
452− recalculateCoincidenceHeight subscribed
530+ , subscriberRecalculateHeight = \_ -> recalculateCoincidenceHeight subscribed
453− when debugInvalidateHeight $ putStrLn $ "recalculateSubscriberHeight: SubscriberCoincidenceOuter" <> showNodeId subscribed <> " done"
456−newSubscriberCoincidenceInner :: CoincidenceSubscribed x a -> IO (Subscriber x a)
533+newSubscriberCoincidenceInner :: forall x a. HasSpiderTimeline x => CoincidenceSubscribed x a -> IO (Subscriber x a)
457−newSubscriberCoincidenceInner subscribed = return $ Subscriber
534+newSubscriberCoincidenceInner subscribed = debugSubscriber ("SubscriberCoincidenceInner" <> showNodeId subscribed) $ Subscriber
458 { subscriberPropagate = \a -> {-# SCC "traverseCoincidenceInner" #-} do
535 { subscriberPropagate = \a -> {-# SCC "traverseCoincidenceInner" #-} do
459− tracePropagate $ "SubscriberCoincidenceInner" <> showNodeId subscribed
460 occ <- liftIO $ readIORef $ coincidenceSubscribedOccurrence subscribed
536 occ <- liftIO $ readIORef $ coincidenceSubscribedOccurrence subscribed
461 case occ of
537 case occ of
462 Just _ -> return () -- SubscriberCoincidenceOuter must have already propagated this event
538 Just _ -> return () -- SubscriberCoincidenceOuter must have already propagated this event
@@ -464,14 +540,8 @@ newSubscriberCoincidenceInner subscribed = return $ Subscriber
464 liftIO $ writeIORef (coincidenceSubscribedOccurrence subscribed) $ Just a
540 liftIO $ writeIORef (coincidenceSubscribedOccurrence subscribed) $ Just a
465 scheduleClear $ coincidenceSubscribedOccurrence subscribed
541 scheduleClear $ coincidenceSubscribedOccurrence subscribed
466 propagate a $ coincidenceSubscribedSubscribers subscribed
542 propagate a $ coincidenceSubscribedSubscribers subscribed
467− , subscriberInvalidateHeight = \_ -> do
468− when debugInvalidateHeight $ putStrLn $ "invalidateSubscriberHeight: SubscriberCoincidenceInner" <> showNodeId subscribed
469− invalidateCoincidenceHeight subscribed
543+ , subscriberInvalidateHeight = \_ -> invalidateCoincidenceHeight subscribed
470− when debugInvalidateHeight $ putStrLn $ "invalidateSubscriberHeight: SubscriberCoincidenceInner" <> showNodeId subscribed <> " done"
471− , subscriberRecalculateHeight = \_ -> do
472− when debugInvalidateHeight $ putStrLn $ "recalculateSubscriberHeight: SubscriberCoincidenceInner" <> showNodeId subscribed
473− recalculateCoincidenceHeight subscribed
544+ , subscriberRecalculateHeight = \_ -> recalculateCoincidenceHeight subscribed
474− when debugInvalidateHeight $ putStrLn $ "recalculateSubscriberHeight: SubscriberCoincidenceInner" <> showNodeId subscribed <> " done"
477invalidateSubscriberHeight :: Height -> Subscriber x a -> IO ()
547invalidateSubscriberHeight :: Height -> Subscriber x a -> IO ()
@@ -481,11 +551,18 @@ recalculateSubscriberHeight :: Height -> Subscriber x a -> IO ()
481recalculateSubscriberHeight = flip subscriberRecalculateHeight
551recalculateSubscriberHeight = flip subscriberRecalculateHeight
483-- | Propagate everything at the current height
553-- | Propagate everything at the current height
484−propagate :: a -> WeakBag (Subscriber x a) -> EventM x ()
554+propagate :: forall x a. HasSpiderTimeline x => a -> WeakBag (Subscriber x a) -> EventM x ()
485−propagate a subscribers = withIncreasedDepth $ do
555+propagate a subscribers = withIncreasedDepth (Proxy::Proxy x) $
556+ -- Note: in the following traversal, we do not visit nodes that are added to the list during our traversal; they are new events, which will necessarily have full information already, so there is no need to traverse them
557+ --TODO: Should we check if nodes already have their values before propagating? Maybe we're re-doing work
558+ WeakBag.traverse_ subscribers $ \s -> subscriberPropagate s a
560+-- | Propagate everything at the current height
561+propagateFast :: forall x a. HasSpiderTimeline x => a -> FastWeakBag (Subscriber x a) -> EventM x ()
562+propagateFast a subscribers = withIncreasedDepth (Proxy::Proxy x) $
486 -- Note: in the following traversal, we do not visit nodes that are added to the list during our traversal; they are new events, which will necessarily have full information already, so there is no need to traverse them
563 -- Note: in the following traversal, we do not visit nodes that are added to the list during our traversal; they are new events, which will necessarily have full information already, so there is no need to traverse them
487 --TODO: Should we check if nodes already have their values before propagating? Maybe we're re-doing work
564 --TODO: Should we check if nodes already have their values before propagating? Maybe we're re-doing work
488− WeakBag.traverse subscribers $ \s -> subscriberPropagate s a
565+ FastWeakBag.traverse_ subscribers $ \s -> subscriberPropagate s a
490--------------------------------------------------------------------------------
567--------------------------------------------------------------------------------
491-- EventSubscribed
568-- EventSubscribed
@@ -494,11 +571,16 @@ propagate a subscribers = withIncreasedDepth $ do
494toAny :: a -> Any
571toAny :: a -> Any
495toAny = unsafeCoerce
572toAny = unsafeCoerce
574+-- Why do we use Any here, instead of just giving eventSubscribedRetained an
575+-- existential type? Sadly, GHC does not currently know how to unbox types
576+-- with existentially quantified fields. So instead we just coerce values
577+-- to type Any on the way in. Since we never coerce them back, this is
497data EventSubscribed x = EventSubscribed
579data EventSubscribed x = EventSubscribed
498 { eventSubscribedHeightRef :: {-# UNPACK #-} !(IORef Height)
580 { eventSubscribedHeightRef :: {-# UNPACK #-} !(IORef Height)
499 , eventSubscribedRetained :: {-# NOUNPACK #-} !Any
581 , eventSubscribedRetained :: {-# NOUNPACK #-} !Any
500#ifdef DEBUG_CYCLES
582#ifdef DEBUG_CYCLES
501− , eventSubscribedGetParents :: !(IO [Some (EventSubscribed x)]) -- For debugging loops
583+ , eventSubscribedGetParents :: !(IO [EventSubscribed x]) -- For debugging loops
502 , eventSubscribedHasOwnHeightRef :: !Bool
584 , eventSubscribedHasOwnHeightRef :: !Bool
503 , eventSubscribedWhoCreated :: !(IO [String])
585 , eventSubscribedWhoCreated :: !(IO [String])
@@ -525,26 +607,23 @@ eventSubscribedNever = EventSubscribed
525 , eventSubscribedWhoCreated = return ["never"]
607 , eventSubscribedWhoCreated = return ["never"]
528−
610+eventSubscribedNow :: EventSubscribed x
529−eventSubscribedMerge :: MergeSubscribed x k -> EventSubscribed x
611+eventSubscribedNow = EventSubscribed
530−eventSubscribedMerge !subscribed = EventSubscribed
531− { eventSubscribedHeightRef = mergeSubscribedHeight subscribed
612+ { eventSubscribedHeightRef = zeroRef
532− , eventSubscribedRetained = toAny subscribed
613+ , eventSubscribedRetained = toAny ()
533#ifdef DEBUG_CYCLES
614#ifdef DEBUG_CYCLES
534− , eventSubscribedGetParents = do
615+ , eventSubscribedGetParents = return []
535− ps <- readIORef $ mergeSubscribedParents subscribed
536− return $ R.ffor (DMap.toList ps) $ \(_ :=> v) -> Some.This $ _eventSubscription_subscribed $ mergeSubscribedParentSubscription v
537− , eventSubscribedHasOwnHeightRef = True
616+ , eventSubscribedHasOwnHeightRef = False
538− , eventSubscribedWhoCreated = whoCreatedIORef $ mergeSubscribedCachedSubscribed subscribed
617+ , eventSubscribedWhoCreated = return ["now"]
542−eventSubscribedFan :: FanSubscribed x k -> EventSubscribed x
621+eventSubscribedFan :: FanSubscribed x k v -> EventSubscribed x
543eventSubscribedFan !subscribed = EventSubscribed
622eventSubscribedFan !subscribed = EventSubscribed
544 { eventSubscribedHeightRef = eventSubscribedHeightRef $ _eventSubscription_subscribed $ fanSubscribedParent subscribed
623 { eventSubscribedHeightRef = eventSubscribedHeightRef $ _eventSubscription_subscribed $ fanSubscribedParent subscribed
545 , eventSubscribedRetained = toAny subscribed
624 , eventSubscribedRetained = toAny subscribed
546#ifdef DEBUG_CYCLES
625#ifdef DEBUG_CYCLES
547− , eventSubscribedGetParents = return [Some.This $ _eventSubscription_subscribed $ fanSubscribedParent subscribed]
626+ , eventSubscribedGetParents = return [_eventSubscription_subscribed $ fanSubscribedParent subscribed]
548 , eventSubscribedHasOwnHeightRef = False
627 , eventSubscribedHasOwnHeightRef = False
549 , eventSubscribedWhoCreated = whoCreatedIORef $ fanSubscribedCachedSubscribed subscribed
628 , eventSubscribedWhoCreated = whoCreatedIORef $ fanSubscribedCachedSubscribed subscribed
@@ -557,7 +636,7 @@ eventSubscribedSwitch !subscribed = EventSubscribed
557#ifdef DEBUG_CYCLES
636#ifdef DEBUG_CYCLES
558 , eventSubscribedGetParents = do
637 , eventSubscribedGetParents = do
559 s <- readIORef $ switchSubscribedCurrentParent subscribed
638 s <- readIORef $ switchSubscribedCurrentParent subscribed
560− return [Some.This $ _eventSubscription_subscribed s]
639+ return [_eventSubscription_subscribed s]
561 , eventSubscribedHasOwnHeightRef = True
640 , eventSubscribedHasOwnHeightRef = True
562 , eventSubscribedWhoCreated = whoCreatedIORef $ switchSubscribedCachedSubscribed subscribed
641 , eventSubscribedWhoCreated = whoCreatedIORef $ switchSubscribedCachedSubscribed subscribed
@@ -570,8 +649,8 @@ eventSubscribedCoincidence !subscribed = EventSubscribed
570#ifdef DEBUG_CYCLES
649#ifdef DEBUG_CYCLES
571 , eventSubscribedGetParents = do
650 , eventSubscribedGetParents = do
572 innerSubscription <- readIORef $ coincidenceSubscribedInnerParent subscribed
651 innerSubscription <- readIORef $ coincidenceSubscribedInnerParent subscribed
573− let outerParent = Some.This $ _eventSubscription_subscribed $ coincidenceSubscribedOuterParent subscribed
652+ let outerParent = _eventSubscription_subscribed $ coincidenceSubscribedOuterParent subscribed
574− innerParents = maybeToList $ fmap Some.This innerSubscription
653+ innerParents = maybeToList $ innerSubscription
575 return $ outerParent : innerParents
654 return $ outerParent : innerParents
576 , eventSubscribedHasOwnHeightRef = True
655 , eventSubscribedHasOwnHeightRef = True
577 , eventSubscribedWhoCreated = whoCreatedIORef $ coincidenceSubscribedCachedSubscribed subscribed
656 , eventSubscribedWhoCreated = whoCreatedIORef $ coincidenceSubscribedCachedSubscribed subscribed
@@ -585,41 +664,29 @@ getEventSubscribedHeight es = readIORef $ eventSubscribedHeightRef es
585whoCreatedEventSubscribed :: EventSubscribed x -> IO [String]
664whoCreatedEventSubscribed :: EventSubscribed x -> IO [String]
586whoCreatedEventSubscribed = eventSubscribedWhoCreated
665whoCreatedEventSubscribed = eventSubscribedWhoCreated
588−walkInvalidHeightParents :: EventSubscribed x -> IO [Some (EventSubscribed x)]
667+walkInvalidHeightParents :: EventSubscribed x -> IO [EventSubscribed x]
589walkInvalidHeightParents s0 = do
668walkInvalidHeightParents s0 = do
590− subscribers <- flip execStateT mempty $ ($ Some.This s0) $ fix $ \loop (Some.This s) -> do
669+ subscribers <- flip execStateT mempty $ ($ s0) $ fix $ \loop s -> do
591 h <- liftIO $ readIORef $ eventSubscribedHeightRef s
670 h <- liftIO $ readIORef $ eventSubscribedHeightRef s
592 when (h == invalidHeight) $ do
671 when (h == invalidHeight) $ do
593 when (eventSubscribedHasOwnHeightRef s) $ liftIO $ writeIORef (eventSubscribedHeightRef s) $! invalidHeightBeingTraversed
672 when (eventSubscribedHasOwnHeightRef s) $ liftIO $ writeIORef (eventSubscribedHeightRef s) $! invalidHeightBeingTraversed
594− modify (Some.This s :)
673+ modify (s :)
595 mapM_ loop =<< liftIO (eventSubscribedGetParents s)
674 mapM_ loop =<< liftIO (eventSubscribedGetParents s)
596− forM_ subscribers $ \(Some.This s) -> writeIORef (eventSubscribedHeightRef s) $! invalidHeight
675+ forM_ subscribers $ \s -> writeIORef (eventSubscribedHeightRef s) $! invalidHeight
597 return subscribers
676 return subscribers
600{-# INLINE subscribeHoldEvent #-}
679{-# INLINE subscribeHoldEvent #-}
601−subscribeHoldEvent :: CanSubscribe x m => Hold x p -> Subscriber x p -> m (EventSubscription x, Maybe p)
680+subscribeHoldEvent :: Hold x p -> Subscriber x p -> EventM x (EventSubscription x, Maybe p)
602subscribeHoldEvent = subscribeAndRead . holdEvent
681subscribeHoldEvent = subscribeAndRead . holdEvent
604−--------------------------------------------------------------------------------
606−--------------------------------------------------------------------------------
608−data EventSubscription x = EventSubscription
609− { _eventSubscription_ticket :: !(Maybe WeakBagTicket)
610− , _eventSubscription_subscribed :: {-# UNPACK #-} !(EventSubscribed x)
613−unsubscribe :: EventSubscription x -> IO ()
614−unsubscribe (EventSubscription msln _) = forM_ msln $ \sln -> WeakBag.remove sln
616--------------------------------------------------------------------------------
683--------------------------------------------------------------------------------
617-- Behavior
684-- Behavior
618--------------------------------------------------------------------------------
685--------------------------------------------------------------------------------
620newtype Behavior x a = Behavior { readBehaviorTracked :: BehaviorM x a }
687newtype Behavior x a = Behavior { readBehaviorTracked :: BehaviorM x a }
622−behaviorHold :: Hold x p -> Behavior x (R.PatchTarget p)
689+behaviorHold :: Hold x p -> Behavior x (PatchTarget p)
623behaviorHold !h = Behavior $ readHoldTracked h
690behaviorHold !h = Behavior $ readHoldTracked h
625behaviorHoldIdentity :: Hold x (Identity a) -> Behavior x a
692behaviorHoldIdentity :: Hold x (Identity a) -> Behavior x a
@@ -633,7 +700,7 @@ behaviorPull !p = Behavior $ do
633 val <- liftIO $ readIORef $ pullValue p
700 val <- liftIO $ readIORef $ pullValue p
634 case val of
701 case val of
635 Just subscribed -> do
702 Just subscribed -> do
636− askParentsRef >>= mapM_ (\r -> liftIO $ modifyIORef' r (SomeBehaviorSubscribed (BehaviorSubscribedPull subscribed) :))
703+ askParentsRef >>= mapM_ (\r -> liftIO $ modifyIORef' r (SomeBehaviorSubscribed (Some (BehaviorSubscribedPull subscribed)) :))
637 askInvalidator >>= mapM_ (\wi -> liftIO $ modifyIORef' (pullSubscribedInvalidators subscribed) (wi:))
704 askInvalidator >>= mapM_ (\wi -> liftIO $ modifyIORef' (pullSubscribedInvalidators subscribed) (wi:))
638 liftIO $ touch $ pullSubscribedOwnInvalidator subscribed
705 liftIO $ touch $ pullSubscribedOwnInvalidator subscribed
639 return $ pullSubscribedValue subscribed
706 return $ pullSubscribedValue subscribed
@@ -642,7 +709,7 @@ behaviorPull !p = Behavior $ do
642 wi <- liftIO $ mkWeakPtrWithDebug i "InvalidatorPull"
709 wi <- liftIO $ mkWeakPtrWithDebug i "InvalidatorPull"
643 parentsRef <- liftIO $ newIORef []
710 parentsRef <- liftIO $ newIORef []
644 holdInits <- askBehaviorHoldInits
711 holdInits <- askBehaviorHoldInits
645− a <- liftIO $ runReaderT (unBehaviorM $ pullCompute p) (Just (wi, parentsRef), holdInits)
712+ a <- liftIO $ runReaderIO (unBehaviorM $ pullCompute p) (Just (wi, parentsRef), holdInits)
646 invsRef <- liftIO . newIORef . maybeToList =<< askInvalidator
713 invsRef <- liftIO . newIORef . maybeToList =<< askInvalidator
647 parents <- liftIO $ readIORef parentsRef
714 parents <- liftIO $ readIORef parentsRef
648 let subscribed = PullSubscribed
715 let subscribed = PullSubscribed
@@ -652,22 +719,22 @@ behaviorPull !p = Behavior $ do
652 , pullSubscribedParents = parents
719 , pullSubscribedParents = parents
654 liftIO $ writeIORef (pullValue p) $ Just subscribed
721 liftIO $ writeIORef (pullValue p) $ Just subscribed
655− askParentsRef >>= mapM_ (\r -> liftIO $ modifyIORef' r (SomeBehaviorSubscribed (BehaviorSubscribedPull subscribed) :))
722+ askParentsRef >>= mapM_ (\r -> liftIO $ modifyIORef' r (SomeBehaviorSubscribed (Some (BehaviorSubscribedPull subscribed)) :))
658−behaviorDyn :: R.Patch p => Dyn x p -> Behavior x (R.PatchTarget p)
725+behaviorDyn :: Patch p => Dyn x p -> Behavior x (PatchTarget p)
659behaviorDyn !d = Behavior $ readHoldTracked =<< getDynHold d
726behaviorDyn !d = Behavior $ readHoldTracked =<< getDynHold d
661{-# INLINE readHoldTracked #-}
728{-# INLINE readHoldTracked #-}
662−readHoldTracked :: Hold x p -> BehaviorM x (R.PatchTarget p)
729+readHoldTracked :: Hold x p -> BehaviorM x (PatchTarget p)
663readHoldTracked h = do
730readHoldTracked h = do
664 result <- liftIO $ readIORef $ holdValue h
731 result <- liftIO $ readIORef $ holdValue h
665 askInvalidator >>= mapM_ (\wi -> liftIO $ modifyIORef' (holdInvalidators h) (wi:))
732 askInvalidator >>= mapM_ (\wi -> liftIO $ modifyIORef' (holdInvalidators h) (wi:))
666− askParentsRef >>= mapM_ (\r -> liftIO $ modifyIORef' r (SomeBehaviorSubscribed (BehaviorSubscribedHold h) :))
733+ askParentsRef >>= mapM_ (\r -> liftIO $ modifyIORef' r (SomeBehaviorSubscribed (Some (BehaviorSubscribedHold h)) :))
734+ liftIO $ touch h -- Otherwise, if this gets inlined enough, the hold's parent reference may get collected
667 return result
735 return result
669−{-# SPECIALIZE readBehaviorUntracked :: Behavior x a -> BehaviorM x a #-}
670−{-# SPECIALIZE readBehaviorUntracked :: Behavior x a -> EventM x a #-}
737+{-# INLINABLE readBehaviorUntracked #-}
671readBehaviorUntracked :: Defer (SomeHoldInit x) m => Behavior x a -> m a
738readBehaviorUntracked :: Defer (SomeHoldInit x) m => Behavior x a -> m a
672readBehaviorUntracked b = do
739readBehaviorUntracked b = do
673 holdInits <- getDeferralQueue
740 holdInits <- getDeferralQueue
@@ -677,45 +744,49 @@ readBehaviorUntracked b = do
677-- Dynamic
744-- Dynamic
678--------------------------------------------------------------------------------
745--------------------------------------------------------------------------------
747+type DynamicS x p = Dynamic x (PatchTarget p) p
680−data Dynamic x p = Dynamic
749+data Dynamic x target p = Dynamic
681− { dynamicCurrent :: !(Behavior x (R.PatchTarget p))
750+ { dynamicCurrent :: !(Behavior x target)
682− , dynamicUpdated :: !(Event x p)
751+ , dynamicUpdated :: Event x p -- This must be lazy; see the comment on holdEvent --TODO: Would this let us eliminate `Dyn`?
754+deriving instance (HasSpiderTimeline x) => Functor (Dynamic x target)
685−dynamicHold :: Hold x p -> Dynamic x p
759+dynamicHold :: Hold x p -> DynamicS x p
686dynamicHold !h = Dynamic
760dynamicHold !h = Dynamic
687 { dynamicCurrent = behaviorHold h
761 { dynamicCurrent = behaviorHold h
688 , dynamicUpdated = eventHold h
762 , dynamicUpdated = eventHold h
691−dynamicHoldIdentity :: Hold x (Identity a) -> Dynamic x (Identity a)
765+dynamicHoldIdentity :: Hold x (Identity a) -> DynamicS x (Identity a)
692dynamicHoldIdentity = dynamicHold
766dynamicHoldIdentity = dynamicHold
694−dynamicConst :: R.PatchTarget p -> Dynamic x p
768+dynamicConst :: PatchTarget p -> DynamicS x p
695dynamicConst !a = Dynamic
769dynamicConst !a = Dynamic
696 { dynamicCurrent = behaviorConst a
770 { dynamicCurrent = behaviorConst a
697 , dynamicUpdated = eventNever
771 , dynamicUpdated = eventNever
700−dynamicDyn :: R.Patch p => Dyn x p -> Dynamic x p
774+dynamicDyn :: (HasSpiderTimeline x, Patch p) => Dyn x p -> DynamicS x p
701dynamicDyn !d = Dynamic
775dynamicDyn !d = Dynamic
702 { dynamicCurrent = behaviorDyn d
776 { dynamicCurrent = behaviorDyn d
703 , dynamicUpdated = eventDyn d
777 , dynamicUpdated = eventDyn d
706−dynamicDynIdentity :: Dyn x (Identity a) -> Dynamic x (Identity a)
780+dynamicDynIdentity :: HasSpiderTimeline x => Dyn x (Identity a) -> DynamicS x (Identity a)
707dynamicDynIdentity = dynamicDyn
781dynamicDynIdentity = dynamicDyn
709--------------------------------------------------------------------------------
783--------------------------------------------------------------------------------
710-- Combinators
784-- Combinators
711--------------------------------------------------------------------------------
785--------------------------------------------------------------------------------
713−--TODO: Figure out why certain things are not 'representational', then make them
714−--representational so we can use coerce
716--type role Hold representational
787--type role Hold representational
717data Hold x p
788data Hold x p
718− = Hold { holdValue :: !(IORef (R.PatchTarget p))
789+ = Hold { holdValue :: !(IORef (PatchTarget p))
719 , holdInvalidators :: !(IORef [Weak (Invalidator x)])
790 , holdInvalidators :: !(IORef [Weak (Invalidator x)])
720 , holdEvent :: Event x p -- This must be lazy, or holds cannot be defined before their input Events
791 , holdEvent :: Event x p -- This must be lazy, or holds cannot be defined before their input Events
721 , holdParent :: !(IORef (Maybe (EventSubscription x))) -- Keeps its parent alive (will be undefined until the hold is initialized) --TODO: Probably shouldn't be an IORef
792 , holdParent :: !(IORef (Maybe (EventSubscription x))) -- Keeps its parent alive (will be undefined until the hold is initialized) --TODO: Probably shouldn't be an IORef
@@ -724,22 +795,57 @@ data Hold x p
798+-- | A statically allocated 'SpiderTimeline'
801+{-# NOINLINE globalSpiderTimelineEnv #-}
802+globalSpiderTimelineEnv :: SpiderTimelineEnv Global
803+globalSpiderTimelineEnv = unsafePerformIO unsafeNewSpiderTimelineEnv
805+-- | Stores all global data relevant to a particular Spider timeline; only one
806+-- value should exist for each type @x@
807+newtype SpiderTimelineEnv x = STE {unSTE :: SpiderTimelineEnv' x}
808+-- We implement SpiderTimelineEnv with a newtype wrapper so
809+-- we can get the coercions we want safely.
810+type role SpiderTimelineEnv nominal
812+data SpiderTimelineEnv' x = SpiderTimelineEnv
813+ { _spiderTimeline_lock :: {-# UNPACK #-} !(MVar ())
814+ , _spiderTimeline_eventEnv :: {-# UNPACK #-} !(EventEnv x)
816+ , _spiderTimeline_depth :: {-# UNPACK #-} !(IORef Int)
819+type role SpiderTimelineEnv' phantom
821+instance Eq (SpiderTimelineEnv x) where
822+ _ == _ = True -- Since only one exists of each type
824+instance GEq SpiderTimelineEnv where
825+ a `geq` b = if _spiderTimeline_lock (unSTE a) == _spiderTimeline_lock (unSTE b)
826+ then Just $ unsafeCoerce Refl -- This unsafeCoerce is safe because the same SpiderTimelineEnv can't have two different 'x' arguments
727data EventEnv x
829data EventEnv x
728− = EventEnv { eventEnvSpiderTimeline :: !(SpiderTimeline x)
729− , eventEnvAssignments :: !(IORef [SomeAssignment x]) -- Needed for Subscribe
830+ = EventEnv { eventEnvAssignments :: !(IORef [SomeAssignment x]) -- Needed for Subscribe
730 , eventEnvHoldInits :: !(IORef [SomeHoldInit x]) -- Needed for Subscribe
831 , eventEnvHoldInits :: !(IORef [SomeHoldInit x]) -- Needed for Subscribe
832+ , eventEnvDynInits :: !(IORef [SomeDynInit x])
731 , eventEnvMergeUpdates :: !(IORef [SomeMergeUpdate x])
833 , eventEnvMergeUpdates :: !(IORef [SomeMergeUpdate x])
732 , eventEnvMergeInits :: !(IORef [SomeMergeInit x]) -- Needed for Subscribe
834 , eventEnvMergeInits :: !(IORef [SomeMergeInit x]) -- Needed for Subscribe
733− , eventEnvClears :: !(IORef [SomeClear]) -- Needed for Subscribe
835+ , eventEnvClears :: !(IORef [Some Clear]) -- Needed for Subscribe
836+ , eventEnvIntClears :: !(IORef [Some IntClear])
734− , eventEnvRootClears :: !(IORef [SomeRootClear])
837+ , eventEnvRootClears :: !(IORef [Some RootClear])
735 , eventEnvCurrentHeight :: !(IORef Height) -- Needed for Subscribe
838 , eventEnvCurrentHeight :: !(IORef Height) -- Needed for Subscribe
736 , eventEnvResetCoincidences :: !(IORef [SomeResetCoincidence x]) -- Needed for Subscribe
839 , eventEnvResetCoincidences :: !(IORef [SomeResetCoincidence x]) -- Needed for Subscribe
737− , eventEnvDelayedMerges :: !(IORef (IntMap [DelayedMerge x]))
840+ , eventEnvDelayedMerges :: !(IORef (IntMap [EventM x ()]))
740{-# INLINE runEventM #-}
843{-# INLINE runEventM #-}
741−runEventM :: EventM x a -> EventEnv x -> IO a
844+runEventM :: EventM x a -> IO a
742−runEventM = runReaderT . unEventM
845+runEventM = unEventM
847+asksEventEnv :: forall x a. HasSpiderTimeline x => (EventEnv x -> a) -> EventM x a
848+asksEventEnv f = return $ f $ _spiderTimeline_eventEnv (unSTE (spiderTimeline :: SpiderTimelineEnv x))
744class MonadIO m => Defer a m where
850class MonadIO m => Defer a m where
745 getDeferralQueue :: m (IORef [a])
851 getDeferralQueue :: m (IORef [a])
@@ -750,81 +856,87 @@ defer a = do
750 q <- getDeferralQueue
856 q <- getDeferralQueue
751 liftIO $ modifyIORef' q (a:)
857 liftIO $ modifyIORef' q (a:)
753−instance Defer (SomeAssignment x) (EventM x) where
859+instance HasSpiderTimeline x => Defer (SomeAssignment x) (EventM x) where
860+ {-# INLINE getDeferralQueue #-}
861+ getDeferralQueue = asksEventEnv eventEnvAssignments
863+instance HasSpiderTimeline x => Defer (SomeHoldInit x) (EventM x) where
754 {-# INLINE getDeferralQueue #-}
864 {-# INLINE getDeferralQueue #-}
755− getDeferralQueue = EventM $ asks eventEnvAssignments
865+ getDeferralQueue = asksEventEnv eventEnvHoldInits
757−instance Defer (SomeHoldInit x) (EventM x) where
867+instance HasSpiderTimeline x => Defer (SomeDynInit x) (EventM x) where
758 {-# INLINE getDeferralQueue #-}
868 {-# INLINE getDeferralQueue #-}
759− getDeferralQueue = EventM $ asks eventEnvHoldInits
869+ getDeferralQueue = asksEventEnv eventEnvDynInits
761instance Defer (SomeHoldInit x) (BehaviorM x) where
871instance Defer (SomeHoldInit x) (BehaviorM x) where
762 {-# INLINE getDeferralQueue #-}
872 {-# INLINE getDeferralQueue #-}
763 getDeferralQueue = BehaviorM $ asks snd
873 getDeferralQueue = BehaviorM $ asks snd
765−instance Defer (SomeMergeUpdate x) (EventM x) where
875+instance HasSpiderTimeline x => Defer (SomeMergeUpdate x) (EventM x) where
766 {-# INLINE getDeferralQueue #-}
876 {-# INLINE getDeferralQueue #-}
767− getDeferralQueue = EventM $ asks eventEnvMergeUpdates
877+ getDeferralQueue = asksEventEnv eventEnvMergeUpdates
769−instance Defer (SomeMergeInit x) (EventM x) where
879+instance HasSpiderTimeline x => Defer (SomeMergeInit x) (EventM x) where
770 {-# INLINE getDeferralQueue #-}
880 {-# INLINE getDeferralQueue #-}
771− getDeferralQueue = EventM $ asks eventEnvMergeInits
881+ getDeferralQueue = asksEventEnv eventEnvMergeInits
773−class HasCurrentHeight x m | m -> x where
883+class HasSpiderTimeline x => HasCurrentHeight x m | m -> x where
774 getCurrentHeight :: m Height
884 getCurrentHeight :: m Height
775− scheduleMerge :: Height -> MergeSubscribed x a -> m ()
885+ scheduleMerge :: Height -> EventM x () -> m ()
777−instance HasCurrentHeight x (EventM x) where
887+instance HasSpiderTimeline x => HasCurrentHeight x (EventM x) where
778 {-# INLINE getCurrentHeight #-}
888 {-# INLINE getCurrentHeight #-}
779− getCurrentHeight = EventM $ do
889+ getCurrentHeight = do
780− heightRef <- asks eventEnvCurrentHeight
890+ heightRef <- asksEventEnv eventEnvCurrentHeight
781 liftIO $ readIORef heightRef
891 liftIO $ readIORef heightRef
782 {-# INLINE scheduleMerge #-}
892 {-# INLINE scheduleMerge #-}
783− scheduleMerge height subscribed = EventM $ do
893+ scheduleMerge height subscribed = do
784− delayedRef <- asks eventEnvDelayedMerges
894+ delayedRef <- asksEventEnv eventEnvDelayedMerges
785− liftIO $ modifyIORef' delayedRef $ IntMap.insertWith (++) (unHeight height) [DelayedMerge subscribed]
895+ liftIO $ modifyIORef' delayedRef $ IntMap.insertWith (++) (unHeight height) [subscribed]
787−class HasSpiderTimeline x m | m -> x where
897+class HasSpiderTimeline x where
788− -- | Retrieve the current SpiderTimeline
898+ -- | Retrieve the current SpiderTimelineEnv
789− askSpiderTimeline :: m (SpiderTimeline x)
899+ spiderTimeline :: SpiderTimelineEnv x
791−instance HasSpiderTimeline x (EventM x) where
901+instance HasSpiderTimeline Global where
792− {-# INLINE askSpiderTimeline #-}
902+ spiderTimeline = globalSpiderTimelineEnv
793− askSpiderTimeline = EventM $ asks eventEnvSpiderTimeline
795−instance HasSpiderTimeline x (SpiderHost x) where
796− {-# INLINE askSpiderTimeline #-}
797− askSpiderTimeline = SpiderHost ask
799−putCurrentHeight :: Height -> EventM x ()
904+putCurrentHeight :: HasSpiderTimeline x => Height -> EventM x ()
800−putCurrentHeight h = EventM $ do
905+putCurrentHeight h = do
801− heightRef <- asks eventEnvCurrentHeight
906+ heightRef <- asksEventEnv eventEnvCurrentHeight
802 liftIO $ writeIORef heightRef $! h
907 liftIO $ writeIORef heightRef $! h
804−instance Defer SomeClear (EventM x) where
909+instance HasSpiderTimeline x => Defer (Some Clear) (EventM x) where
805 {-# INLINE getDeferralQueue #-}
910 {-# INLINE getDeferralQueue #-}
806− getDeferralQueue = EventM $ asks eventEnvClears
911+ getDeferralQueue = asksEventEnv eventEnvClears
808{-# INLINE scheduleClear #-}
913{-# INLINE scheduleClear #-}
809−scheduleClear :: Defer SomeClear m => IORef (Maybe a) -> m ()
914+scheduleClear :: Defer (Some Clear) m => IORef (Maybe a) -> m ()
810−scheduleClear r = defer $ SomeClear r
915+scheduleClear r = defer $ Some $ Clear r
917+instance HasSpiderTimeline x => Defer (Some IntClear) (EventM x) where
918+ {-# INLINE getDeferralQueue #-}
919+ getDeferralQueue = asksEventEnv eventEnvIntClears
921+{-# INLINE scheduleIntClear #-}
922+scheduleIntClear :: Defer (Some IntClear) m => IORef (IntMap a) -> m ()
923+scheduleIntClear r = defer $ Some $ IntClear r
812−instance Defer SomeRootClear (EventM x) where
925+instance HasSpiderTimeline x => Defer (Some RootClear) (EventM x) where
813 {-# INLINE getDeferralQueue #-}
926 {-# INLINE getDeferralQueue #-}
814− getDeferralQueue = EventM $ asks eventEnvRootClears
927+ getDeferralQueue = asksEventEnv eventEnvRootClears
816{-# INLINE scheduleRootClear #-}
929{-# INLINE scheduleRootClear #-}
817−scheduleRootClear :: Defer SomeRootClear m => IORef (DMap k Identity) -> m ()
930+scheduleRootClear :: Defer (Some RootClear) m => IORef (DMap k Identity) -> m ()
818−scheduleRootClear r = defer $ SomeRootClear r
931+scheduleRootClear r = defer $ Some $ RootClear r
820−instance Defer (SomeResetCoincidence x) (EventM x) where
933+instance HasSpiderTimeline x => Defer (SomeResetCoincidence x) (EventM x) where
821 {-# INLINE getDeferralQueue #-}
934 {-# INLINE getDeferralQueue #-}
822− getDeferralQueue = EventM $ asks eventEnvResetCoincidences
935+ getDeferralQueue = asksEventEnv eventEnvResetCoincidences
824-- Note: hold cannot examine its event until after the phase is over
937-- Note: hold cannot examine its event until after the phase is over
825−{-# SPECIALIZE hold :: R.Patch p => R.PatchTarget p -> Event x p -> EventM x (Hold x p) #-}
938+{-# INLINE [1] hold #-}
826−{-# SPECIALIZE hold :: R.Patch p => R.PatchTarget p -> Event x p -> ComputeM x (Hold x p) #-}
827−hold :: (R.Patch p, Defer (SomeHoldInit x) m) => R.PatchTarget p -> Event x p -> m (Hold x p)
939+hold :: (Patch p, Defer (SomeHoldInit x) m) => PatchTarget p -> Event x p -> m (Hold x p)
828hold v0 e = do
940hold v0 e = do
829 valRef <- liftIO $ newIORef v0
941 valRef <- liftIO $ newIORef v0
830 invsRef <- liftIO $ newIORef []
942 invsRef <- liftIO $ newIORef []
@@ -845,7 +957,7 @@ hold v0 e = do
847{-# INLINE getHoldEventSubscription #-}
959{-# INLINE getHoldEventSubscription #-}
848−getHoldEventSubscription :: forall m p x. (Defer (SomeAssignment x) m, Defer (SomeHoldInit x) m, Defer SomeClear m, R.Patch p, HasCurrentHeight x m, Defer (SomeMergeInit x) m, Defer (SomeResetCoincidence x) m, HasSpiderTimeline x m, m ~ EventM x) => Hold x p -> m (EventSubscription x)
960+getHoldEventSubscription :: forall p x. (HasSpiderTimeline x, Patch p) => Hold x p -> EventM x (EventSubscription x)
849getHoldEventSubscription h = do
961getHoldEventSubscription h = do
850 ep <- liftIO $ readIORef $ holdParent h
962 ep <- liftIO $ readIORef $ holdParent h
851 case ep of
963 case ep of
@@ -859,7 +971,7 @@ getHoldEventSubscription h = do
859 Nothing -> return ()
971 Nothing -> return ()
860 Just o -> do
972 Just o -> do
861 old <- liftIO $ readIORef $ holdValue h
973 old <- liftIO $ readIORef $ holdValue h
862− case R.apply o old of
974+ case apply o old of
863 Nothing -> return ()
975 Nothing -> return ()
864 Just new -> do
976 Just new -> do
865 -- Need to evaluate these so that we don't retain the Hold itself
977 -- Need to evaluate these so that we don't retain the Hold itself
@@ -871,9 +983,9 @@ getHoldEventSubscription h = do
872type BehaviorEnv x = (Maybe (Weak (Invalidator x), IORef [SomeBehaviorSubscribed x]), IORef [SomeHoldInit x])
984type BehaviorEnv x = (Maybe (Weak (Invalidator x), IORef [SomeBehaviorSubscribed x]), IORef [SomeHoldInit x])
874−--type role BehaviorM representational
875-- BehaviorM can sample behaviors
986-- BehaviorM can sample behaviors
876−newtype BehaviorM x a = BehaviorM { unBehaviorM :: ReaderT (BehaviorEnv x) IO a } deriving (Functor, Applicative, MonadIO, MonadFix)
987+newtype BehaviorM x a = BehaviorM { unBehaviorM :: ReaderIO (BehaviorEnv x) a }
988+ deriving (Functor, Applicative, MonadIO, MonadFix, MonadReader (BehaviorEnv x))
878instance Monad (BehaviorM x) where
990instance Monad (BehaviorM x) where
879 {-# INLINE (>>=) #-}
991 {-# INLINE (>>=) #-}
@@ -882,14 +994,16 @@ instance Monad (BehaviorM x) where
882 BehaviorM x >> BehaviorM y = BehaviorM $ x >> y
994 BehaviorM x >> BehaviorM y = BehaviorM $ x >> y
883 {-# INLINE return #-}
995 {-# INLINE return #-}
884 return x = BehaviorM $ return x
996 return x = BehaviorM $ return x
997+#if !MIN_VERSION_base(4,13,0)
885 {-# INLINE fail #-}
998 {-# INLINE fail #-}
886 fail s = BehaviorM $ fail s
999 fail s = BehaviorM $ fail s
888data BehaviorSubscribed x a
1002data BehaviorSubscribed x a
889 = forall p. BehaviorSubscribedHold (Hold x p)
1003 = forall p. BehaviorSubscribedHold (Hold x p)
890 | BehaviorSubscribedPull (PullSubscribed x a)
1004 | BehaviorSubscribedPull (PullSubscribed x a)
892−data SomeBehaviorSubscribed x = forall a. SomeBehaviorSubscribed (BehaviorSubscribed x a)
1006+newtype SomeBehaviorSubscribed x = SomeBehaviorSubscribed (Some (BehaviorSubscribed x))
894--type role PullSubscribed representational
1008--type role PullSubscribed representational
895data PullSubscribed x a
1009data PullSubscribed x a
@@ -924,34 +1038,33 @@ data RootSubscribed x a = forall k. GCompare k => RootSubscribed
927−data Root x (k :: * -> *)
1041+data Root x k
928 = Root { rootOccurrence :: !(IORef (DMap k Identity)) -- The currently-firing occurrence of this event
1042 = Root { rootOccurrence :: !(IORef (DMap k Identity)) -- The currently-firing occurrence of this event
929 , rootSubscribed :: !(IORef (DMap k (RootSubscribed x)))
1043 , rootSubscribed :: !(IORef (DMap k (RootSubscribed x)))
930 , rootInit :: !(forall a. k a -> RootTrigger x a -> IO (IO ()))
1044 , rootInit :: !(forall a. k a -> RootTrigger x a -> IO (IO ()))
933−data SomeHoldInit x = forall p. R.Patch p => SomeHoldInit !(Hold x p)
1047+data SomeHoldInit x = forall p. Patch p => SomeHoldInit !(Hold x p)
935−data SomeMergeUpdate x = forall k. GCompare k => SomeMergeUpdate (R.PatchDMap k (Event x)) (MergeSubscribed x k)
937−data SomeMergeInit x = forall k. GCompare k => SomeMergeInit !(MergeSubscribed x k) !(Event x (R.PatchDMap k (Event x)))
1049+data SomeDynInit x = forall p. Patch p => SomeDynInit !(Dyn x p)
939−-- EventM can do everything BehaviorM can, plus create holds
940−newtype EventM x (a :: *) = EventM { unEventM :: ReaderT (EventEnv x) IO a } deriving (Functor, Applicative, Monad, MonadIO, MonadFix, MonadException, MonadAsyncException) -- The environment should be Nothing if we are not in a frame, and Just if we are - in which case it is a list of assignments to be done after the frame is over
942−newtype ComputeM x a = ComputeM (ReaderT (IORef [SomeHoldInit x]) IO a) deriving (Functor, Applicative, Monad, MonadIO, MonadFix)
1051+data SomeMergeUpdate x = SomeMergeUpdate
1052+ { _someMergeUpdate_update :: !(EventM x [EventSubscription x])
1053+ , _someMergeUpdate_invalidateHeight :: !(IO ())
1054+ , _someMergeUpdate_recalculateHeight :: !(IO ())
944−instance Defer (SomeHoldInit x) (ComputeM x) where
1057+newtype SomeMergeInit x = SomeMergeInit { unSomeMergeInit :: EventM x () }
945− getDeferralQueue = ComputeM ask
947−{-# SPECIALIZE runComputeM :: ComputeM x a -> EventM x a #-}
1059+-- EventM can do everything BehaviorM can, plus create holds
948−runComputeM :: Defer (SomeHoldInit x) m => ComputeM x a -> m a
1060+newtype EventM x a = EventM { unEventM :: IO a } deriving (Functor, Applicative, Monad, MonadIO, MonadFix, MonadException, MonadAsyncException)
949−runComputeM (ComputeM a) = liftIO . runReaderT a =<< getDeferralQueue
951−data MergeSubscribedParent (x :: *) k a = MergeSubscribedParent !(EventSubscription x) !(Subscriber x a)
1062+newtype MergeSubscribedParent x a = MergeSubscribedParent { unMergeSubscribedParent :: EventSubscription x }
953−mergeSubscribedParentSubscription :: MergeSubscribedParent x k a -> EventSubscription x
1064+data MergeSubscribedParentWithMove x k a = MergeSubscribedParentWithMove
954−mergeSubscribedParentSubscription (MergeSubscribedParent es _) = es
1065+ { _mergeSubscribedParentWithMove_subscription :: !(EventSubscription x)
1066+ , _mergeSubscribedParentWithMove_key :: !(IORef (k a))
956data HeightBag = HeightBag
1069data HeightBag = HeightBag
957 { _heightBag_size :: {-# UNPACK #-} !Int
1070 { _heightBag_size :: {-# UNPACK #-} !Int
@@ -969,7 +1082,8 @@ heightBagFromList :: [Height] -> HeightBag
969heightBagFromList heights = heightBagVerify $ foldl' (flip heightBagAdd) heightBagEmpty heights
1082heightBagFromList heights = heightBagVerify $ foldl' (flip heightBagAdd) heightBagEmpty heights
971heightBagAdd :: Height -> HeightBag -> HeightBag
1084heightBagAdd :: Height -> HeightBag -> HeightBag
972−heightBagAdd (Height h) (HeightBag s c) = heightBagVerify $ HeightBag (succ s) $ IntMap.insertWithKey (\_ _ old -> succ old) h 0 c
1085+heightBagAdd (Height h) (HeightBag s c) = heightBagVerify $ HeightBag (succ s) $
1086+ IntMap.insertWithKey (\_ _ old -> succ old) h 0 c
974heightBagRemove :: Height -> HeightBag -> HeightBag
1088heightBagRemove :: Height -> HeightBag -> HeightBag
975heightBagRemove (Height h) b@(HeightBag s c) = heightBagVerify $ case IntMap.lookup h c of
1089heightBagRemove (Height h) b@(HeightBag s c) = heightBagVerify $ case IntMap.lookup h c of
@@ -978,6 +1092,13 @@ heightBagRemove (Height h) b@(HeightBag s c) = heightBagVerify $ case IntMap.loo
978 0 -> IntMap.delete h c
1092 0 -> IntMap.delete h c
979 _ -> IntMap.insert h (pred old) c
1093 _ -> IntMap.insert h (pred old) c
1095+heightBagRemoveMaybe :: Height -> HeightBag -> Maybe HeightBag
1096+heightBagRemoveMaybe (Height h) b@(HeightBag s c) = heightBagVerify . removed <$> IntMap.lookup h c where
1097+ removed old = HeightBag (pred s) $ case old of
1098+ 0 -> IntMap.delete h c
1099+ _ -> IntMap.insert h (pred old) c
981heightBagMax :: HeightBag -> Height
1102heightBagMax :: HeightBag -> Height
982heightBagMax (HeightBag _ c) = case IntMap.maxViewWithKey c of
1103heightBagMax (HeightBag _ c) = case IntMap.maxViewWithKey c of
983 Just ((h, _), _) -> Height h
1104 Just ((h, _), _) -> Height h
@@ -995,46 +1116,25 @@ heightBagVerify b@(HeightBag s c) = if
995heightBagVerify = id
1116heightBagVerify = id
998−data MergeSubscribed x k
999− = MergeSubscribed { mergeSubscribedCachedSubscribed :: !(IORef (Maybe (MergeSubscribed x k))) -- From the original merge
1000− , mergeSubscribedOccurrence :: !(IORef (Maybe (DMap k Identity)))
1001− , mergeSubscribedAccum :: !(IORef (DMap k Identity)) -- This will accumulate occurrences until our height is reached, at which point it will be transferred to mergeSubscribedOccurrence
1002− , mergeSubscribedHeight :: !(IORef Height)
1003− , mergeSubscribedHeightBag :: !(IORef HeightBag)
1004− , mergeSubscribedSubscribers :: !(WeakBag (Subscriber x (DMap k Identity)))
1005− , mergeSubscribedChange :: !(IORef (Subscriber x (R.PatchDMap k (Event x)), EventSubscribed x))
1006− , mergeSubscribedParents :: !(IORef (DMap k (MergeSubscribedParent x k)))
1007− , mergeSubscribedWeakSelf :: !(IORef (Weak (MergeSubscribed x k)))
1008−#ifdef DEBUG_NODEIDS
1009− , mergeSubscribedNodeId :: Int
1013−--TODO: DMap sucks; we should really write something better (with a functor for the value as well as the key)
1015− = Merge { mergeParents :: !(Dynamic x (R.PatchDMap k (Event x)))
1016− , mergeSubscribed :: !(IORef (Maybe (MergeSubscribed x k)))
1019−data FanSubscribedChildren (x :: *) k a = FanSubscribedChildren
1119+data FanSubscribedChildren x k v a = FanSubscribedChildren
1020− { _fanSubscribedChildren_list :: !(WeakBag (Subscriber x a))
1120+ { _fanSubscribedChildren_list :: !(WeakBag (Subscriber x (v a)))
1021− , _fanSubscribedChildren_self :: {-# NOUNPACK #-} !(k a, FanSubscribed x k)
1121+ , _fanSubscribedChildren_self :: {-# NOUNPACK #-} !(k a, FanSubscribed x k v)
1022− , _fanSubscribedChildren_weakSelf :: !(IORef (Weak (k a, FanSubscribed x k)))
1122+ , _fanSubscribedChildren_weakSelf :: !(IORef (Weak (k a, FanSubscribed x k v)))
1025−data FanSubscribed (x :: *) k
1125+data FanSubscribed x k v
1026− = FanSubscribed { fanSubscribedCachedSubscribed :: !(IORef (Maybe (FanSubscribed x k)))
1126+ = FanSubscribed { fanSubscribedCachedSubscribed :: !(IORef (Maybe (FanSubscribed x k v)))
1027− , fanSubscribedOccurrence :: !(IORef (Maybe (DMap k Identity)))
1127+ , fanSubscribedOccurrence :: !(IORef (Maybe (DMap k v)))
1028− , fanSubscribedSubscribers :: !(IORef (DMap k (FanSubscribedChildren x k))) -- This DMap should never be empty
1128+ , fanSubscribedSubscribers :: !(IORef (DMap k (FanSubscribedChildren x k v))) -- This DMap should never be empty
1029 , fanSubscribedParent :: !(EventSubscription x)
1129 , fanSubscribedParent :: !(EventSubscription x)
1030#ifdef DEBUG_NODEIDS
1130#ifdef DEBUG_NODEIDS
1031 , fanSubscribedNodeId :: Int
1131 , fanSubscribedNodeId :: Int
1035−data Fan x k
1135+data Fan x k v
1036− = Fan { fanParent :: !(Event x (DMap k Identity))
1136+ = Fan { fanParent :: !(Event x (DMap k v))
1037− , fanSubscribed :: !(IORef (Maybe (FanSubscribed x k)))
1137+ , fanSubscribed :: !(IORef (Maybe (FanSubscribed x k v)))
1040data SwitchSubscribed x a
1140data SwitchSubscribed x a
@@ -1058,7 +1158,9 @@ data Switch x a
1058 , switchSubscribed :: !(IORef (Maybe (SwitchSubscribed x a)))
1158 , switchSubscribed :: !(IORef (Maybe (SwitchSubscribed x a)))
1161+#ifdef USE_TEMPLATE_HASKELL
1061{-# ANN CoincidenceSubscribed "HLint: ignore Redundant bracket" #-}
1162{-# ANN CoincidenceSubscribed "HLint: ignore Redundant bracket" #-}
1062data CoincidenceSubscribed x a
1164data CoincidenceSubscribed x a
1063 = CoincidenceSubscribed { coincidenceSubscribedCachedSubscribed :: !(IORef (Maybe (CoincidenceSubscribed x a)))
1165 = CoincidenceSubscribed { coincidenceSubscribedCachedSubscribed :: !(IORef (Maybe (CoincidenceSubscribed x a)))
1064 , coincidenceSubscribedOccurrence :: !(IORef (Maybe a))
1166 , coincidenceSubscribedOccurrence :: !(IORef (Maybe a))
@@ -1086,20 +1188,35 @@ newInvalidatorSwitch subd = return $! InvalidatorSwitch subd
1086newInvalidatorPull :: Pull x a -> IO (Invalidator x)
1188newInvalidatorPull :: Pull x a -> IO (Invalidator x)
1087newInvalidatorPull p = return $! InvalidatorPull p
1189newInvalidatorPull p = return $! InvalidatorPull p
1089−instance R.FunctorMaybe (Event x) where
1191+instance HasSpiderTimeline x => Filterable (Event x) where
1090− fmapMaybe f = push $ return . f
1192+ mapMaybe f = push $ return . f
1092−instance Align (Event x) where
1194+instance HasSpiderTimeline x => Align (Event x) where
1093 nil = eventNever
1195 nil = eventNever
1196+#if MIN_VERSION_these(0, 8, 0)
1197+instance HasSpiderTimeline x => Semialign (Event x) where
1094− align ea eb = R.fmapMaybe R.dmapToThese $ merge $ dynamicConst $ DMap.fromList [R.LeftTag :=> ea, R.RightTag :=> eb]
1199+ align ea eb = mapMaybe dmapToThese $ mergeG coerce $ dynamicConst $
1200+ DMap.fromDistinctAscList [LeftTag :=> ea, RightTag :=> eb]
1202+#ifdef MIN_VERSION_semialign
1203+#if MIN_VERSION_semialign(1,1,0)
1204+instance HasSpiderTimeline x => Zip (Event x) where
1206+ zip x y = mapMaybe justThese $ align x y
1209+data DynType x p = UnsafeDyn !(BehaviorM x (PatchTarget p), Event x p)
1210+ | BuildDyn !(EventM x (PatchTarget p), Event x p)
1211+ | HoldDyn !(Hold x p)
1096−newtype Dyn x p = Dyn { unDyn :: IORef (Either (BehaviorM x (R.PatchTarget p), Event x p) (Hold x p)) }
1213+newtype Dyn (x :: Type) p = Dyn { unDyn :: IORef (DynType x p) }
1098−newMapDyn :: (a -> b) -> Dynamic x (Identity a) -> Dynamic x (Identity b)
1215+newMapDyn :: HasSpiderTimeline x => (a -> b) -> DynamicS x (Identity a) -> DynamicS x (Identity b)
1099−newMapDyn f d = dynamicDynIdentity $ unsafeDyn (fmap f $ readBehaviorTracked $ dynamicCurrent d) (Identity . f . runIdentity <$> dynamicUpdated d)
1216+newMapDyn f d = dynamicDynIdentity $ unsafeBuildDynamic (fmap f $ readBehaviorTracked $ dynamicCurrent d) (Identity . f . runIdentity <$> dynamicUpdated d)
1101--TODO: Avoid the duplication between this and R.zipDynWith
1218--TODO: Avoid the duplication between this and R.zipDynWith
1102−zipDynWith :: (a -> b -> c) -> Dynamic x (Identity a) -> Dynamic x (Identity b) -> Dynamic x (Identity c)
1219+zipDynWith :: HasSpiderTimeline x => (a -> b -> c) -> DynamicS x (Identity a) -> DynamicS x (Identity b) -> DynamicS x (Identity c)
1103zipDynWith f da db =
1220zipDynWith f da db =
1104 let eab = align (dynamicUpdated da) (dynamicUpdated db)
1221 let eab = align (dynamicUpdated da) (dynamicUpdated db)
1105 ec = flip push eab $ \o -> do
1222 ec = flip push eab $ \o -> do
@@ -1112,75 +1229,70 @@ zipDynWith f da db =
1112 return (a, b)
1229 return (a, b)
1113 These (Identity a) (Identity b) -> return (a, b)
1230 These (Identity a) (Identity b) -> return (a, b)
1114 return $ Just $ Identity $ f a b
1231 return $ Just $ Identity $ f a b
1115− in dynamicDynIdentity $ unsafeDyn (f <$> readBehaviorUntracked (dynamicCurrent da) <*> readBehaviorUntracked (dynamicCurrent db)) ec
1232+ in dynamicDynIdentity $ unsafeBuildDynamic (f <$> readBehaviorUntracked (dynamicCurrent da) <*> readBehaviorUntracked (dynamicCurrent db)) ec
1117−unsafeDyn :: BehaviorM x (R.PatchTarget p) -> Event x p -> Dyn x p
1234+buildDynamic :: (Defer (SomeDynInit x) m, Patch p) => EventM x (PatchTarget p) -> Event x p -> m (Dyn x p)
1118−unsafeDyn readV0 v' = Dyn $ unsafeNewIORef x $ Left x
1235+buildDynamic readV0 v' = do
1119− where x = (readV0, v')
1236+ result <- liftIO $ newIORef $ BuildDyn (readV0, v')
1237+ let !d = Dyn result
1238+ defer $ SomeDynInit d
1121−newJoinDyn :: Dynamic x (Identity (Dynamic x (Identity a))) -> Dyn x (Identity a)
1241+unsafeBuildDynamic :: BehaviorM x (PatchTarget p) -> Event x p -> Dyn x p
1122−newJoinDyn d =
1242+unsafeBuildDynamic readV0 v' =
1123− let readV0 = readBehaviorTracked . dynamicCurrent =<< readBehaviorTracked (dynamicCurrent d)
1243+ Dyn $ unsafePerformIO $ newIORef $ UnsafeDyn (readV0, v')
1124− eOuter = push (fmap (Just . Identity) . readBehaviorUntracked . dynamicCurrent . runIdentity) $ dynamicUpdated d
1125− eInner = switch $ dynamicUpdated <$> dynamicCurrent d
1126− eBoth = coincidence $ dynamicUpdated . runIdentity <$> dynamicUpdated d
1127− v' = unSpiderEvent $ R.leftmost $ map SpiderEvent [eBoth, eOuter, eInner]
1128− in unsafeDyn readV0 v'
1130-- ResultM can read behaviors and events
1245-- ResultM can read behaviors and events
1131type ResultM = EventM
1246type ResultM = EventM
1133−{-# NOINLINE unsafeNewIORef #-}
1134−unsafeNewIORef :: a -> b -> IORef b
1135−unsafeNewIORef _ b = unsafePerformIO $ newIORef b
1137−instance Functor (Event x) where
1248+instance HasSpiderTimeline x => Functor (Event x) where
1138 fmap f = push $ return . Just . f
1249 fmap f = push $ return . Just . f
1140instance Functor (Behavior x) where
1251instance Functor (Behavior x) where
1141 fmap f = pull . fmap f . readBehaviorTracked
1252 fmap f = pull . fmap f . readBehaviorTracked
1143−{-# INLINABLE push #-} --TODO: If this is helpful, we can get rid of the unsafeNewIORef and use unsafePerformIO directly
1254+{-# INLINE push #-}
1144−push :: (a -> ComputeM x (Maybe b)) -> Event x a -> Event x b
1255+push :: HasSpiderTimeline x => (a -> ComputeM x (Maybe b)) -> Event x a -> Event x b
1145push f e = cacheEvent (pushCheap f e)
1256push f e = cacheEvent (pushCheap f e)
1147−push f e = eventPush $ Push
1150− , pushSubscribed = unsafeNewIORef (f, e) Nothing --TODO: Does the use of the tuple here create unnecessary overhead?
1152−-- DISABLED: {- RULES "push/push" forall f g e. push f (push g e) = push (maybe (return Nothing) f <=< g) e #-}
1155{-# INLINABLE pull #-}
1258{-# INLINABLE pull #-}
1156pull :: BehaviorM x a -> Behavior x a
1259pull :: BehaviorM x a -> Behavior x a
1157−pull a = behaviorPull $ Pull
1260+pull a = unsafePerformIO $ do
1158− { pullCompute = a
1261+ ref <- newIORef Nothing
1159− , pullValue = unsafeNewIORef a Nothing
1160#ifdef DEBUG_NODEIDS
1262#ifdef DEBUG_NODEIDS
1161− , pullNodeId = unsafeNodeId a
1263+ nid <- newNodeId
1265+ pure $ behaviorPull $ Pull
1268+#ifdef DEBUG_NODEIDS
1165{-# INLINABLE switch #-}
1273{-# INLINABLE switch #-}
1166−switch :: Behavior x (Event x a) -> Event x a
1274+switch :: HasSpiderTimeline x => Behavior x (Event x a) -> Event x a
1275+switch a = unsafePerformIO $ do
1276+ ref <- newIORef Nothing
1167−switch a = eventSwitch $ Switch
1277+ pure $ eventSwitch $ Switch
1168− { switchParent = a
1278+ { switchParent = a
1169− , switchSubscribed = unsafeNewIORef a Nothing
1279+ , switchSubscribed = ref
1172−coincidence :: Event x (Event x a) -> Event x a
1282+coincidence :: HasSpiderTimeline x => Event x (Event x a) -> Event x a
1283+coincidence a = unsafePerformIO $ do
1284+ ref <- newIORef Nothing
1173−coincidence a = eventCoincidence $ Coincidence
1285+ pure $ eventCoincidence $ Coincidence
1174− { coincidenceParent = a
1286+ { coincidenceParent = a
1175− , coincidenceSubscribed = unsafeNewIORef a Nothing
1287+ , coincidenceSubscribed = ref
1178-- Propagate the given event occurrence; before cleaning up, run the given action, which may read the state of events and behaviors
1290-- Propagate the given event occurrence; before cleaning up, run the given action, which may read the state of events and behaviors
1179−run :: [DSum (RootTrigger x) Identity] -> ResultM x b -> SpiderHost x b
1291+run :: forall x b. HasSpiderTimeline x => [DSum (RootTrigger x) Identity] -> ResultM x b -> SpiderHost x b
1180run roots after = do
1292run roots after = do
1181− tracePropagate $ "Running an event frame with " <> show (length roots) <> " events"
1293+ tracePropagate (Proxy :: Proxy x) $ "Running an event frame with " <> show (length roots) <> " events"
1182− spiderTimeline <- SpiderHost ask
1294+ let t = spiderTimeline :: SpiderTimelineEnv x
1183− result <- SpiderHost $ lift $ withMVar (_spiderTimeline_lock spiderTimeline) $ \_ -> flip runReaderT spiderTimeline $ unSpiderHost $ runFrame $ do
1295+ result <- SpiderHost $ withMVar (_spiderTimeline_lock (unSTE t)) $ \_ -> unSpiderHost $ runFrame $ do
1184 rootsToPropagate <- forM roots $ \r@(RootTrigger (_, occRef, k) :=> a) -> do
1296 rootsToPropagate <- forM roots $ \r@(RootTrigger (_, occRef, k) :=> a) -> do
1185 occBefore <- liftIO $ do
1297 occBefore <- liftIO $ do
1186 occBefore <- readIORef occRef
1298 occBefore <- readIORef occRef
@@ -1192,42 +1304,39 @@ run roots after = do
1192 else return Nothing
1304 else return Nothing
1193 forM_ (catMaybes rootsToPropagate) $ \(RootTrigger (subscribersRef, _, _) :=> Identity a) -> do
1305 forM_ (catMaybes rootsToPropagate) $ \(RootTrigger (subscribersRef, _, _) :=> Identity a) -> do
1194 propagate a subscribersRef
1306 propagate a subscribersRef
1195− delayedRef <- EventM $ asks eventEnvDelayedMerges
1307+ delayedRef <- asksEventEnv eventEnvDelayedMerges
1196 let go = do
1308 let go = do
1197 delayed <- liftIO $ readIORef delayedRef
1309 delayed <- liftIO $ readIORef delayedRef
1198 case IntMap.minViewWithKey delayed of
1310 case IntMap.minViewWithKey delayed of
1199 Nothing -> return ()
1311 Nothing -> return ()
1200 Just ((currentHeight, cur), future) -> do
1312 Just ((currentHeight, cur), future) -> do
1201− tracePropagate $ "Running height " ++ show currentHeight
1313+ tracePropagate (Proxy :: Proxy x) $ "Running height " ++ show currentHeight
1202 putCurrentHeight $ Height currentHeight
1314 putCurrentHeight $ Height currentHeight
1203 liftIO $ writeIORef delayedRef $! future
1315 liftIO $ writeIORef delayedRef $! future
1204− forM_ cur $ \d -> case d of
1316+ sequence_ cur
1205− DelayedMerge subscribed -> do
1206− height <- liftIO $ readIORef $ mergeSubscribedHeight subscribed
1207− case height `compare` Height currentHeight of
1208− LT -> error "Somehow a merge's height has been decreased after it was scheduled"
1209− GT -> scheduleMerge height subscribed -- The height has been increased (by a coincidence event; TODO: is this the only way?)
1211− m <- liftIO $ readIORef $ mergeSubscribedAccum subscribed
1212− liftIO $ writeIORef (mergeSubscribedAccum subscribed) $! DMap.empty
1213− --TODO: Assert that m is not empty
1214− liftIO $ writeIORef (mergeSubscribedOccurrence subscribed) $ Just m
1215− scheduleClear $ mergeSubscribedOccurrence subscribed
1216− propagate m $ mergeSubscribedSubscribers subscribed
1219 putCurrentHeight maxBound
1319 putCurrentHeight maxBound
1221− tracePropagate "Done running an event frame"
1321+ tracePropagate (Proxy :: Proxy x) "Done running an event frame"
1222 return result
1322 return result
1224−data SomeClear = forall a. SomeClear (IORef (Maybe a))
1324+scheduleMerge' :: HasSpiderTimeline x => Height -> IORef Height -> EventM x () -> EventM x ()
1325+scheduleMerge' initialHeight heightRef a = scheduleMerge initialHeight $ do
1326+ height <- liftIO $ readIORef heightRef
1327+ currentHeight <- getCurrentHeight
1328+ case height `compare` currentHeight of
1329+ LT -> error "Somehow a merge's height has been decreased after it was scheduled"
1330+ GT -> scheduleMerge' height heightRef a -- The height has been increased (by a coincidence event; TODO: is this the only way?)
1226−data SomeRootClear = forall k. SomeRootClear (IORef (DMap k Identity))
1333+newtype Clear a = Clear (IORef (Maybe a))
1228−data SomeAssignment x = forall a. SomeAssignment {-# UNPACK #-} !(IORef a) {-# UNPACK #-} !(IORef [Weak (Invalidator x)]) a
1335+newtype IntClear a = IntClear (IORef (IntMap a))
1337+newtype RootClear k = RootClear (IORef (DMap k Identity))
1230−data DelayedMerge x = forall k. DelayedMerge (MergeSubscribed x k)
1339+data SomeAssignment x = forall a. SomeAssignment {-# UNPACK #-} !(IORef a) {-# UNPACK #-} !(IORef [Weak (Invalidator x)]) a
1232debugFinalize :: Bool
1341debugFinalize :: Bool
1233debugFinalize = False
1342debugFinalize = False
@@ -1237,55 +1346,110 @@ mkWeakPtrWithDebug x debugNote = do
1237 x' <- evaluate x
1346 x' <- evaluate x
1238 mkWeakPtr x' $
1347 mkWeakPtr x' $
1239 if debugFinalize
1348 if debugFinalize
1240− then Just $ putStrLn $ "finalizing: " ++ debugNote
1349+ then Just $ debugStrLn $ "finalizing: " ++ debugNote
1241 else Nothing
1350 else Nothing
1243type WeakList a = [Weak a]
1352type WeakList a = [Weak a]
1245−{-# INLINE withIncreasedDepth #-}
1354+type CanTrace x m = (HasSpiderTimeline x, MonadIO m)
1246#ifdef DEBUG
1359#ifdef DEBUG
1361+debugSubscriber :: forall x a. HasSpiderTimeline x => String -> Subscriber x a -> IO (Subscriber x a)
1362+debugSubscriber description = return . debugSubscriber' description
1364+debugSubscriber' :: forall x a. HasSpiderTimeline x => String -> Subscriber x a -> Subscriber x a
1365+debugSubscriber' description subscribed = Subscriber
1367+ subscriberPropagate = \m -> do
1368+ tracePropagate (Proxy :: Proxy x) ("subscriberPropagate: " <> description)
1369+ subscriberPropagate subscribed m
1370+ , subscriberInvalidateHeight = \old -> do
1371+ traceInvalidateHeight $ "invalidateSubscriberHeight: " <> description <> ", old = " <> show (unHeight old)
1372+ subscriberInvalidateHeight subscribed old
1373+ traceInvalidateHeight $ "invalidateSubscriberHeight: " <> description <> ", done"
1374+ , subscriberRecalculateHeight = \new -> do
1375+ traceInvalidateHeight $ "subscriberRecalculateHeight: " <> description <> ", new = " <> show (unHeight new)
1376+ subscriberRecalculateHeight subscribed new
1377+ traceInvalidateHeight $ "subscriberRecalculateHeight: " <> description <> ", done"
1247−withIncreasedDepth :: CanTrace x m => m a -> m a
1381+{-# INLINE withIncreasedDepth #-}
1382+withIncreasedDepth :: forall proxy x m a. CanTrace x m => proxy x -> m a -> m a
1248−withIncreasedDepth a = do
1383+withIncreasedDepth _ a = do
1249− spiderTimeline <- askSpiderTimeline
1250− liftIO $ modifyIORef' (_spiderTimeline_depth spiderTimeline) succ
1384+ liftIO $ modifyIORef' (_spiderTimeline_depth $ unSTE (spiderTimeline :: SpiderTimelineEnv x)) succ
1251 result <- a
1385 result <- a
1252− liftIO $ modifyIORef' (_spiderTimeline_depth spiderTimeline) pred
1386+ liftIO $ modifyIORef' (_spiderTimeline_depth $ unSTE (spiderTimeline :: SpiderTimelineEnv x)) pred
1253 return result
1387 return result
1255−withIncreasedDepth :: m a -> m a
1256−withIncreasedDepth = id
1259−type CanTrace x m = (HasSpiderTimeline x m, MonadIO m)
1261{-# INLINE tracePropagate #-}
1389{-# INLINE tracePropagate #-}
1262−tracePropagate :: (CanTrace x m) => String -> m ()
1390+tracePropagate :: (CanTrace x m) => proxy x -> String -> m ()
1263−tracePropagate = traceWhen debugPropagate
1391+tracePropagate p = when debugPropagate . trace p
1265{-# INLINE traceInvalidate #-}
1393{-# INLINE traceInvalidate #-}
1266traceInvalidate :: String -> IO ()
1394traceInvalidate :: String -> IO ()
1267−traceInvalidate = when debugInvalidate . liftIO . putStrLn
1395+traceInvalidate = when debugInvalidate . liftIO . debugStrLn
1397+{-# INLINE traceInvalidateHeight #-}
1398+traceInvalidateHeight :: String -> IO ()
1399+traceInvalidateHeight = when debugInvalidateHeight . liftIO . debugStrLn
1269−{-# INLINE traceWhen #-}
1401+{-# INLINE trace #-}
1270−traceWhen :: (CanTrace x m) => Bool -> String -> m ()
1402+trace :: (CanTrace x m) => proxy x -> String -> m ()
1271−traceWhen b message = traceMWhen b $ return message
1403+trace p message = traceM p $ return message
1273−{-# INLINE traceMWhen #-}
1405+{-# INLINE traceM #-}
1274−traceMWhen :: (CanTrace x m) => Bool -> m String -> m ()
1406+traceM :: forall x proxy m. (CanTrace x m) => proxy x -> m String -> m ()
1275−traceMWhen b getMessage = when b $ do
1407+traceM _ getMessage = do
1276 message <- getMessage
1408 message <- getMessage
1278− spiderTimeline <- askSpiderTimeline
1279− d <- liftIO $ readIORef $ _spiderTimeline_depth spiderTimeline
1409+ d <- liftIO $ readIORef $ _spiderTimeline_depth $ unSTE (spiderTimeline :: SpiderTimelineEnv x)
1410+ liftIO $ debugStrLn $ replicate d ' ' <> message
1414+{-# INLINE withIncreasedDepth #-}
1415+withIncreasedDepth :: proxy x -> m a -> m a
1416+withIncreasedDepth _ = id
1418+{-# INLINE tracePropagate #-}
1419+tracePropagate :: (CanTrace x m) => proxy x -> String -> m ()
1420+tracePropagate _ _ = return ()
1422+{-# INLINE traceInvalidate #-}
1423+traceInvalidate :: String -> IO ()
1424+traceInvalidate _ = return ()
1426+{-# INLINE traceInvalidateHeight #-}
1427+traceInvalidateHeight :: String -> IO ()
1428+traceInvalidateHeight _ = return ()
1430+{-# INLINE debugSubscriber #-}
1431+debugSubscriber :: String -> Subscriber x a -> IO (Subscriber x a)
1432+debugSubscriber _ = return
1434+{-# INLINE debugSubscriber' #-}
1435+debugSubscriber' :: String -> Subscriber x a -> Subscriber x a
1436+debugSubscriber' _ = id
1440+{-# INLINE trace #-}
1441+trace :: (CanTrace x m) => proxy x -> String -> m ()
1442+trace _ _ = return ()
1444+{-# INLINE traceM #-}
1445+traceM :: (CanTrace x m) => proxy x -> m String -> m ()
1446+traceM _ _ = return ()
1283− liftIO $ putStrLn $ replicate d ' ' <> message
1285whoCreatedIORef :: IORef a -> IO [String]
1450whoCreatedIORef :: IORef a -> IO [String]
1286whoCreatedIORef (IORef a) = whoCreated $! a
1451whoCreatedIORef (IORef a) = whoCreated $! a
1289groupByHead :: Eq a => [NonEmpty a] -> [(a, NonEmpty [a])]
1453groupByHead :: Eq a => [NonEmpty a] -> [(a, NonEmpty [a])]
1290groupByHead = \case
1454groupByHead = \case
1291 [] -> []
1455 [] -> []
@@ -1296,20 +1460,54 @@ groupByHead = \case
1296 | otherwise -> (x, xs :| []) : l
1460 | otherwise -> (x, xs :| []) : l
1298listsToForest :: Eq a => [[a]] -> Forest a
1462listsToForest :: Eq a => [[a]] -> Forest a
1299−listsToForest l = fmap (\(a, l') -> Node a $ listsToForest $ toList l') $ groupByHead $ catMaybes $ fmap nonEmpty l
1463+listsToForest lists = buildForest <$> groupByHead (mapMaybe nonEmpty lists)
1464+ where buildForest (a, lists') = Node a $ listsToForest $ toList lists'
1466+showStacks :: [[String]] -> String
1467+showStacks = drawForest . listsToForest . fmap (filterStack "Reflex.Spider.Internal")
1469+filterStack :: String -> [String] -> [String]
1470+#ifdef DEBUG_HIDE_INTERNALS
1471+filterStack prefix = filter (not . (prefix `isPrefixOf`))
1473+filterStack prefix = id
1478+data EventLoopException = EventLoopException [[String]]
1479+instance Exception EventLoopException
1481+instance Show EventLoopException where
1482+ show (EventLoopException stacks) = "causality loop detected:\n" <> if null stacks
1483+ then "no location information, compile with profiling enabled for stack tree"
1484+ else showStacks stacks
1488+data EventLoopException = EventLoopException
1489+instance Exception EventLoopException
1491+instance Show EventLoopException where
1492+ show EventLoopException = "causality loop detected: \n" <>
1493+ "compile reflex with flag 'debug-cycles' and compile with profiling enabled for stack tree"
1302{-# INLINE propagateSubscriberHold #-}
1498{-# INLINE propagateSubscriberHold #-}
1303−propagateSubscriberHold :: R.Patch p => Hold x p -> p -> EventM x ()
1499+propagateSubscriberHold :: forall x p. (HasSpiderTimeline x, Patch p) => Hold x p -> p -> EventM x ()
1304propagateSubscriberHold h a = do
1500propagateSubscriberHold h a = do
1305− {-# SCC "trace" #-} traceMWhen debugPropagate $ liftIO $ do
1501+ {-# SCC "trace" #-} when debugPropagate $ traceM (Proxy :: Proxy x) $ liftIO $ do
1306 invalidators <- liftIO $ readIORef $ holdInvalidators h
1502 invalidators <- liftIO $ readIORef $ holdInvalidators h
1307 return $ "SubscriberHold" <> showNodeId h <> ": " ++ show (length invalidators)
1503 return $ "SubscriberHold" <> showNodeId h <> ": " ++ show (length invalidators)
1308 v <- {-# SCC "read" #-} liftIO $ readIORef $ holdValue h
1505 v <- {-# SCC "read" #-} liftIO $ readIORef $ holdValue h
1309− case {-# SCC "apply" #-} R.apply a v of
1506+ case {-# SCC "apply" #-} apply a v of
1310 Nothing -> return ()
1507 Nothing -> return ()
1311 Just v' -> do
1508 Just v' -> do
1509+ {-# SCC "trace2" #-} withIncreasedDepth (Proxy :: Proxy x) $
1312− {-# SCC "trace2" #-} withIncreasedDepth $ tracePropagate $ "propagateSubscriberHold: assigning Hold" <> showNodeId h
1510+ tracePropagate (Proxy :: Proxy x) ("propagateSubscriberHold: assigning Hold" <> showNodeId h)
1313 vRef <- {-# SCC "vRef" #-} liftIO $ evaluate $ holdValue h
1511 vRef <- {-# SCC "vRef" #-} liftIO $ evaluate $ holdValue h
1314 iRef <- {-# SCC "iRef" #-} liftIO $ evaluate $ holdInvalidators h
1512 iRef <- {-# SCC "iRef" #-} liftIO $ evaluate $ holdInvalidators h
1315 defer $ {-# SCC "assignment" #-} SomeAssignment vRef iRef v'
1513 defer $ {-# SCC "assignment" #-} SomeAssignment vRef iRef v'
@@ -1317,56 +1515,53 @@ propagateSubscriberHold h a = do
1317data SomeResetCoincidence x = forall a. SomeResetCoincidence !(EventSubscription x) !(Maybe (CoincidenceSubscribed x a)) -- The CoincidenceSubscriber will be present only if heights need to be reset
1515data SomeResetCoincidence x = forall a. SomeResetCoincidence !(EventSubscription x) !(Maybe (CoincidenceSubscribed x a)) -- The CoincidenceSubscriber will be present only if heights need to be reset
1319runBehaviorM :: BehaviorM x a -> Maybe (Weak (Invalidator x), IORef [SomeBehaviorSubscribed x]) -> IORef [SomeHoldInit x] -> IO a
1517runBehaviorM :: BehaviorM x a -> Maybe (Weak (Invalidator x), IORef [SomeBehaviorSubscribed x]) -> IORef [SomeHoldInit x] -> IO a
1320−runBehaviorM a mwi holdInits = runReaderT (unBehaviorM a) (mwi, holdInits)
1518+runBehaviorM a mwi holdInits = runReaderIO (unBehaviorM a) (mwi, holdInits)
1322askInvalidator :: BehaviorM x (Maybe (Weak (Invalidator x)))
1520askInvalidator :: BehaviorM x (Maybe (Weak (Invalidator x)))
1323askInvalidator = do
1521askInvalidator = do
1324− (!m, _) <- BehaviorM ask
1522+ (!m, _) <- ask
1325 case m of
1523 case m of
1326 Nothing -> return Nothing
1524 Nothing -> return Nothing
1327 Just (!wi, _) -> return $ Just wi
1525 Just (!wi, _) -> return $ Just wi
1329askParentsRef :: BehaviorM x (Maybe (IORef [SomeBehaviorSubscribed x]))
1527askParentsRef :: BehaviorM x (Maybe (IORef [SomeBehaviorSubscribed x]))
1330askParentsRef = do
1528askParentsRef = do
1331− (!m, _) <- BehaviorM ask
1529+ (!m, _) <- ask
1332 case m of
1530 case m of
1333 Nothing -> return Nothing
1531 Nothing -> return Nothing
1334 Just (_, !p) -> return $ Just p
1532 Just (_, !p) -> return $ Just p
1336askBehaviorHoldInits :: BehaviorM x (IORef [SomeHoldInit x])
1534askBehaviorHoldInits :: BehaviorM x (IORef [SomeHoldInit x])
1337askBehaviorHoldInits = do
1535askBehaviorHoldInits = do
1338− (_, !his) <- BehaviorM ask
1536+ (_, !his) <- ask
1339 return his
1537 return his
1341{-# INLINE getDynHold #-}
1539{-# INLINE getDynHold #-}
1342−getDynHold :: (Defer (SomeHoldInit x) m, R.Patch p) => Dyn x p -> m (Hold x p)
1540+getDynHold :: (Defer (SomeHoldInit x) m, Patch p) => Dyn x p -> m (Hold x p)
1343getDynHold d = do
1541getDynHold d = do
1344 mh <- liftIO $ readIORef $ unDyn d
1542 mh <- liftIO $ readIORef $ unDyn d
1345 case mh of
1543 case mh of
1346− Right h -> return h
1544+ HoldDyn h -> return h
1347− Left (readV0, v') -> do
1545+ UnsafeDyn (readV0, v') -> do
1348 holdInits <- getDeferralQueue
1546 holdInits <- getDeferralQueue
1349 v0 <- liftIO $ runBehaviorM readV0 Nothing holdInits
1547 v0 <- liftIO $ runBehaviorM readV0 Nothing holdInits
1549+ BuildDyn (readV0, v') -> do
1550+ v0 <- liftIO $ runEventM readV0
1350 h <- hold v0 v'
1554 h <- hold v0 v'
1351− liftIO $ writeIORef (unDyn d) $ Right h
1555+ liftIO $ writeIORef (unDyn d) $ HoldDyn h
1352 return h
1556 return h
1354-- Always refers to 0
1559-- Always refers to 0
1355{-# NOINLINE zeroRef #-}
1560{-# NOINLINE zeroRef #-}
1356zeroRef :: IORef Height
1561zeroRef :: IORef Height
1357zeroRef = unsafePerformIO $ newIORef zeroHeight
1562zeroRef = unsafePerformIO $ newIORef zeroHeight
1359−type CanSubscribe x m =
1360− ( HasSpiderTimeline x m
1361− , HasCurrentHeight x m
1362− , Defer (SomeHoldInit x) m, Defer (SomeMergeInit x) m -- The things we need to lazily initialize state
1363− , Defer SomeClear m -- Wiping out event firings
1364− , Defer (SomeAssignment x) m -- Updating state
1365− , Defer (SomeResetCoincidence x) m
1369−getRootSubscribed :: GCompare k => k a -> Root x k -> Subscriber x a -> IO (WeakBagTicket, RootSubscribed x a, Maybe a)
1564+getRootSubscribed :: forall k x a. (GCompare k, HasSpiderTimeline x) => k a -> Root x k -> Subscriber x a -> IO (WeakBagTicket, RootSubscribed x a, Maybe a)
1370getRootSubscribed k r sub = do
1565getRootSubscribed k r sub = do
1371 mSubscribed <- readIORef $ rootSubscribed r
1566 mSubscribed <- readIORef $ rootSubscribed r
1372 let getOcc = fmap (coerce . DMap.lookup k) $ readIORef $ rootOccurrence r
1567 let getOcc = fmap (coerce . DMap.lookup k) $ readIORef $ rootOccurrence r
@@ -1380,10 +1575,15 @@ getRootSubscribed k r sub = do
1380 let !cached = rootSubscribed r
1575 let !cached = rootSubscribed r
1381 uninitRef <- newIORef $ error "getRootsubscribed: uninitRef not initialized"
1576 uninitRef <- newIORef $ error "getRootsubscribed: uninitRef not initialized"
1382 (subs, sln) <- WeakBag.singleton sub weakSelf cleanupRootSubscribed
1577 (subs, sln) <- WeakBag.singleton sub weakSelf cleanupRootSubscribed
1383− when debugPropagate $ putStrLn $ "getRootSubscribed: calling rootInit"
1579+ tracePropagate (Proxy::Proxy x) $ "getRootSubscribed: calling rootInit"
1384 uninit <- rootInit r k $ RootTrigger (subs, rootOccurrence r, k)
1581 uninit <- rootInit r k $ RootTrigger (subs, rootOccurrence r, k)
1385 writeIORef uninitRef $! uninit
1582 writeIORef uninitRef $! uninit
1583+#ifdef DEBUG_NODEIDS
1386− let subscribed = RootSubscribed
1586+ let !subscribed = RootSubscribed
1387 { rootSubscribedKey = k
1587 { rootSubscribedKey = k
1388 , rootSubscribedCachedSubscribed = cached
1588 , rootSubscribedCachedSubscribed = cached
1389 , rootSubscribedOccurrence = getOcc
1589 , rootSubscribedOccurrence = getOcc
@@ -1391,17 +1591,29 @@ getRootSubscribed k r sub = do
1391 , rootSubscribedUninit = uninit
1591 , rootSubscribedUninit = uninit
1392 , rootSubscribedWeakSelf = weakSelf
1592 , rootSubscribedWeakSelf = weakSelf
1393#ifdef DEBUG_NODEIDS
1593#ifdef DEBUG_NODEIDS
1394− , rootSubscribedNodeId = unsafeNodeId (k, r, subs)
1594+ , rootSubscribedNodeId = nid
1597+ -- If we die at the same moment that all our children die, they will
1598+ -- try to clean us up but will fail because their Weak reference to us
1599+ -- will also be dead. So, if we are dying, check if there are any
1600+ -- children; since children don't bother cleaning themselves up if
1601+ -- their parents are already dead, I don't think there's a race
1602+ -- condition here. However, if there are any children, then we can
1603+ -- infer that we need to clean ourselves up, so we do.
1605+ cs <- readIORef $ _weakBag_children subs
1606+ when (not $ IntMap.null cs) (cleanupRootSubscribed subscribed)
1397− writeIORef weakSelf =<< evaluate =<< mkWeakPtrWithDebug subscribed "RootSubscribed"
1607+ writeIORef weakSelf =<< evaluate =<< mkWeakPtr subscribed (Just finalCleanup)
1398 modifyIORef' (rootSubscribed r) $ DMap.insertWith (error $ "getRootSubscribed: duplicate key inserted into Root") k subscribed --TODO: I think we can just write back mSubscribed rather than re-reading it
1608 modifyIORef' (rootSubscribed r) $ DMap.insertWith (error $ "getRootSubscribed: duplicate key inserted into Root") k subscribed --TODO: I think we can just write back mSubscribed rather than re-reading it
1399 occ <- getOcc
1609 occ <- getOcc
1400 return (sln, subscribed, occ)
1610 return (sln, subscribed, occ)
1612+#ifdef USE_TEMPLATE_HASKELL
1402{-# ANN cleanupRootSubscribed "HLint: ignore Redundant bracket" #-}
1613{-# ANN cleanupRootSubscribed "HLint: ignore Redundant bracket" #-}
1403cleanupRootSubscribed :: RootSubscribed x a -> IO ()
1615cleanupRootSubscribed :: RootSubscribed x a -> IO ()
1404−cleanupRootSubscribed self@(RootSubscribed { rootSubscribedKey = k, rootSubscribedCachedSubscribed = cached }) = do
1616+cleanupRootSubscribed self@RootSubscribed { rootSubscribedKey = k, rootSubscribedCachedSubscribed = cached } = do
1405 rootSubscribedUninit self
1617 rootSubscribedUninit self
1406 modifyIORef' cached $ DMap.delete k
1618 modifyIORef' cached $ DMap.delete k
@@ -1409,78 +1621,90 @@ cleanupRootSubscribed self@(RootSubscribed { rootSubscribedKey = k, rootSubscrib
1409subscribeRootSubscribed :: RootSubscribed x a -> Subscriber x a -> IO WeakBagTicket
1621subscribeRootSubscribed :: RootSubscribed x a -> Subscriber x a -> IO WeakBagTicket
1410subscribeRootSubscribed subscribed sub = WeakBag.insert sub (rootSubscribedSubscribers subscribed) (rootSubscribedWeakSelf subscribed) cleanupRootSubscribed
1622subscribeRootSubscribed subscribed sub = WeakBag.insert sub (rootSubscribedSubscribers subscribed) (rootSubscribedWeakSelf subscribed) cleanupRootSubscribed
1412−{-# SPECIALIZE getMergeSubscribed :: GCompare k => Merge x k -> Subscriber x (DMap k Identity) -> EventM x (WeakBagTicket, MergeSubscribed x k, Maybe (DMap k Identity)) #-}
1624+newtype EventSelectorInt x a = EventSelectorInt { selectInt :: Int -> Event x a }
1413−getMergeSubscribed :: forall x k m. (CanSubscribe x m, GCompare k) => Merge x k -> Subscriber x (DMap k Identity) -> m (WeakBagTicket, MergeSubscribed x k, Maybe (DMap k Identity))
1625+
1414−getMergeSubscribed m sub = do
1626+data FanInt x a = FanInt
1415− mSubscribed <- liftIO $ readIORef $ mergeSubscribed m
1627+ { _fanInt_subscribers :: {-# UNPACK #-} !(FastMutableIntMap (FastWeakBag (Subscriber x a))) --TODO: Clean up the keys in here when their child weak bags get empty --TODO: Remove our own subscription when the subscribers list is completely empty
1416− case mSubscribed of
1628+ , _fanInt_subscriptionRef :: {-# UNPACK #-} !(IORef (EventSubscription x)) -- This should have a valid subscription iff subscribers is non-empty
1417− Just subscribed -> {-# SCC "hitMerge" #-} liftIO $ do
1629+ , _fanInt_occRef :: {-# UNPACK #-} !(IORef (IntMap a))
1418− sln <- subscribeMergeSubscribed subscribed sub
1419− occ <- readIORef $ mergeSubscribedOccurrence subscribed
1420− return (sln, subscribed, occ)
1421− Nothing -> {-# SCC "missMerge" #-} do
1422− subscribedRef <- liftIO $ newIORef $ error "getMergeSubscribed: subscribedRef not yet initialized"
1423− subscribedUnsafe <- liftIO $ unsafeInterleaveIO $ readIORef subscribedRef
1424− initialParents <- readBehaviorUntracked $ dynamicCurrent $ mergeParents m
1425− subscribers :: [(Maybe (DSum k Identity), Height, DSum k (MergeSubscribedParent x k))] <- forM (DMap.toList initialParents) $ \(k :=> e) -> do
1426− s <- liftIO $ newSubscriberMerge k subscribedUnsafe
1427− (subscription@(EventSubscription _ parentSubd), parentOcc) <- subscribeAndRead e s
1428− height <- liftIO $ getEventSubscribedHeight parentSubd
1429− return $ (fmap (\x -> k :=> Identity x) parentOcc, height, k :=> MergeSubscribedParent subscription s)
1430− let dm = DMap.fromDistinctAscList $ mapMaybe (\(x, _, _) -> x) subscribers
1431− heights = fmap (\(_, h, _) -> h) subscribers --TODO: Assert that there's no invalidHeight in here
1432− myHeightBag = heightBagFromList $ filter (/= invalidHeight) heights
1433− myHeight = if invalidHeight `elem` heights
1435− else succHeight $ heightBagMax myHeightBag
1436− currentHeight <- getCurrentHeight
1437− let (occ, accum) = if currentHeight >= myHeight -- If we should have fired by now
1438− then (if DMap.null dm then Nothing else Just dm, DMap.empty)
1440− unless (DMap.null accum) $ do
1441− scheduleMerge myHeight subscribedUnsafe
1442− occRef <- liftIO $ newIORef occ
1443− when (isJust occ) $ scheduleClear occRef
1444− accumRef <- liftIO $ newIORef accum
1445− heightRef <- liftIO $ newIORef myHeight
1446− heightMapRef <- liftIO $ newIORef myHeightBag
1447− weakSelf <- liftIO $ newIORef $ error "getMergeSubscribed: weakSelf not yet initialized"
1448− (subs, sln) <- liftIO $ WeakBag.singleton sub weakSelf cleanupMergeSubscribed
1449− changeSubdRef <- liftIO $ newIORef $ error "getMergeSubscribed: changeSubdRef not yet initialized"
1450− parentsRef <- liftIO $ newIORef $ DMap.fromDistinctAscList $ map (\(_, _, x) -> x) subscribers
1451− let !subscribed = MergeSubscribed
1452− { mergeSubscribedCachedSubscribed = mergeSubscribed m
1453− , mergeSubscribedOccurrence = occRef
1454− , mergeSubscribedAccum = accumRef
1455− , mergeSubscribedHeight = heightRef
1456− , mergeSubscribedHeightBag = heightMapRef
1457− , mergeSubscribedSubscribers = subs
1458− , mergeSubscribedChange = changeSubdRef
1459− , mergeSubscribedParents = parentsRef
1460− , mergeSubscribedWeakSelf = weakSelf
1461#ifdef DEBUG_NODEIDS
1630#ifdef DEBUG_NODEIDS
1462− , mergeSubscribedNodeId = unsafeNodeId m
1631+ , _fanInt_nodeId :: {-# UNPACK #-} !Int
1465− defer $ SomeMergeInit subscribed $ dynamicUpdated $ mergeParents m
1634+
1466− liftIO $ writeIORef subscribedRef $! subscribed
1635+newFanInt :: IO (FanInt x a)
1467− liftIO $ writeIORef weakSelf =<< evaluate =<< mkWeakPtrWithDebug subscribed "MergeSubscribed"
1636+newFanInt = do
1468− liftIO $ writeIORef (mergeSubscribed m) $ Just subscribed
1637+ subscribers <- FastMutableIntMap.newEmpty --TODO: Clean up the keys in here when their child weak bags get empty --TODO: Remove our own subscription when the subscribers list is completely empty
1469− return (sln, subscribed, occ)
1638+ subscriptionRef <- newIORef $ error "fanInt: no subscription"
1470−
1639+ occRef <- newIORef $ error "fanInt: no occurrence"
1471−cleanupMergeSubscribed :: MergeSubscribed x k -> IO ()
1640+#ifdef DEBUG_NODEIDS
1472−cleanupMergeSubscribed subscribed = do
1641+ nodeId <- newNodeId
1473− parents <- readIORef $ mergeSubscribedParents subscribed
1642+#endif
1474− forM_ (DMap.toList parents) $ \(_ :=> msp) -> unsubscribe $ mergeSubscribedParentSubscription msp
1643+ return $ FanInt
1475− -- Not necessary, because this whole MergeSubscribed is dead: writeIORef (mergeSubscribedParents subscribed) DMap.empty
1644+ { _fanInt_subscribers = subscribers
1476− writeIORef (mergeSubscribedCachedSubscribed subscribed) $ Nothing -- Get rid of the cached subscribed
1645+ , _fanInt_subscriptionRef = subscriptionRef
1646+ , _fanInt_occRef = occRef
1647+#ifdef DEBUG_NODEIDS
1648+ , _fanInt_nodeId = nodeId
1652+fanInt :: HasSpiderTimeline x => Event x (IntMap a) -> EventSelectorInt x a
1653+fanInt p = unsafePerformIO $ do
1655+ pure $ EventSelectorInt $ \k -> Event $ \sub -> do
1656+ isEmpty <- liftIO $ FastMutableIntMap.isEmpty (_fanInt_subscribers self)
1657+ when isEmpty $ do -- This is the first subscriber, so we need to subscribe to our input
1658+ let desc = "fanInt" <> showNodeId self <> ", k = " <> show k
1659+ (subscription, parentOcc) <- subscribeAndRead p $ debugSubscriber' desc $ Subscriber
1660+ { subscriberPropagate = \m -> do
1661+ liftIO $ writeIORef (_fanInt_occRef self) m
1662+ scheduleIntClear $ _fanInt_occRef self
1663+ FastMutableIntMap.forIntersectionWithImmutable_ (_fanInt_subscribers self) m $ \b v -> --TODO: Do we need to know that no subscribers are being added as we traverse?
1664+ FastWeakBag.traverse_ b $ \s ->
1665+ subscriberPropagate s v
1666+ , subscriberInvalidateHeight = \old ->
1667+ FastMutableIntMap.for_ (_fanInt_subscribers self) $ \b ->
1668+ FastWeakBag.traverse_ b $ \s ->
1669+ subscriberInvalidateHeight s old
1670+ , subscriberRecalculateHeight = \new ->
1671+ FastMutableIntMap.for_ (_fanInt_subscribers self) $ \b ->
1672+ FastWeakBag.traverse_ b $ \s ->
1673+ subscriberRecalculateHeight s new
1676+ writeIORef (_fanInt_subscriptionRef self) subscription
1677+ writeIORef (_fanInt_occRef self) $ fromMaybe IntMap.empty parentOcc
1678+ scheduleIntClear $ _fanInt_occRef self
1680+ b <- FastMutableIntMap.lookup (_fanInt_subscribers self) k >>= \case
1682+ b <- FastWeakBag.empty
1683+ FastMutableIntMap.insert (_fanInt_subscribers self) k b
1686+ ticket <- liftIO $ FastWeakBag.insert sub b
1687+ currentOcc <- readIORef (_fanInt_occRef self)
1689+ subscribed <- fanIntSubscribed ticket self
1690+ return (EventSubscription (FastWeakBag.remove ticket) subscribed, IntMap.lookup k currentOcc)
1692+fanIntSubscribed :: FastWeakBagTicket k -> FanInt x a -> IO (EventSubscribed x)
1693+fanIntSubscribed ticket self = do
1694+ subscribedParent <- _eventSubscription_subscribed <$> readIORef (_fanInt_subscriptionRef self)
1695+ return $ EventSubscribed
1696+ { eventSubscribedHeightRef = eventSubscribedHeightRef subscribedParent
1697+ , eventSubscribedRetained = toAny (_fanInt_subscriptionRef self, ticket)
1699+ , eventSubscribedGetParents = return [subscribedParent]
1700+ , eventSubscribedHasOwnHeightRef = False
1701+ , eventSubscribedWhoCreated = whoCreatedIORef $ _fanInt_subscriptionRef self
1478−{-# INLINE subscribeMergeSubscribed #-}
1479−subscribeMergeSubscribed :: MergeSubscribed x k -> Subscriber x (DMap k Identity) -> IO WeakBagTicket
1480−subscribeMergeSubscribed subscribed sub = WeakBag.insert sub (mergeSubscribedSubscribers subscribed) (mergeSubscribedWeakSelf subscribed) cleanupMergeSubscribed
1482−{-# SPECIALIZE getFanSubscribed :: GCompare k => k a -> Fan x k -> Subscriber x a -> EventM x (WeakBagTicket, FanSubscribed x k, Maybe a) #-}
1706+{-# INLINABLE getFanSubscribed #-}
1483−getFanSubscribed :: (Defer (SomeAssignment x) m, Defer (SomeHoldInit x) m, Defer (SomeMergeInit x) m, Defer SomeClear m, HasCurrentHeight x m, Defer (SomeResetCoincidence x) m, HasSpiderTimeline x m, m ~ EventM x, GCompare k) => k a -> Fan x k -> Subscriber x a -> m (WeakBagTicket, FanSubscribed x k, Maybe a)
1707+getFanSubscribed :: (HasSpiderTimeline x, GCompare k) => k a -> Fan x k v -> Subscriber x (v a) -> EventM x (WeakBagTicket, FanSubscribed x k v, Maybe (v a))
1484getFanSubscribed k f sub = do
1708getFanSubscribed k f sub = do
1485 mSubscribed <- liftIO $ readIORef $ fanSubscribed f
1709 mSubscribed <- liftIO $ readIORef $ fanSubscribed f
1486 case mSubscribed of
1710 case mSubscribed of
@@ -1498,13 +1722,16 @@ getFanSubscribed k f sub = do
1498 subscribersRef <- liftIO $ newIORef $ error "getFanSubscribed: subscribersRef not yet initialized"
1722 subscribersRef <- liftIO $ newIORef $ error "getFanSubscribed: subscribersRef not yet initialized"
1499 occRef <- liftIO $ newIORef parentOcc
1723 occRef <- liftIO $ newIORef parentOcc
1500 when (isJust parentOcc) $ scheduleClear occRef
1724 when (isJust parentOcc) $ scheduleClear occRef
1725+#ifdef DEBUG_NODEIDS
1726+ nid <- liftIO newNodeId
1501 let subscribed = FanSubscribed
1728 let subscribed = FanSubscribed
1502 { fanSubscribedCachedSubscribed = fanSubscribed f
1729 { fanSubscribedCachedSubscribed = fanSubscribed f
1503 , fanSubscribedOccurrence = occRef
1730 , fanSubscribedOccurrence = occRef
1504 , fanSubscribedParent = subscription
1731 , fanSubscribedParent = subscription
1505 , fanSubscribedSubscribers = subscribersRef
1732 , fanSubscribedSubscribers = subscribersRef
1506#ifdef DEBUG_NODEIDS
1733#ifdef DEBUG_NODEIDS
1507− , fanSubscribedNodeId = unsafeNodeId f
1734+ , fanSubscribedNodeId = nid
1510 let !self = (k, subscribed)
1737 let !self = (k, subscribed)
@@ -1514,7 +1741,7 @@ getFanSubscribed k f sub = do
1514 liftIO $ writeIORef (fanSubscribed f) $ Just subscribed
1741 liftIO $ writeIORef (fanSubscribed f) $ Just subscribed
1515 return (slnForSub, subscribed, coerce $ DMap.lookup k =<< parentOcc)
1742 return (slnForSub, subscribed, coerce $ DMap.lookup k =<< parentOcc)
1517−cleanupFanSubscribed :: GCompare k => (k a, FanSubscribed x k) -> IO ()
1744+cleanupFanSubscribed :: GCompare k => (k a, FanSubscribed x k v) -> IO ()
1518cleanupFanSubscribed (k, subscribed) = do
1745cleanupFanSubscribed (k, subscribed) = do
1519 subscribers <- readIORef $ fanSubscribedSubscribers subscribed
1746 subscribers <- readIORef $ fanSubscribedSubscribers subscribed
1520 let reducedSubscribers = DMap.delete k subscribers
1747 let reducedSubscribers = DMap.delete k subscribers
@@ -1526,7 +1753,7 @@ cleanupFanSubscribed (k, subscribed) = do
1526 else writeIORef (fanSubscribedSubscribers subscribed) $! reducedSubscribers
1753 else writeIORef (fanSubscribedSubscribers subscribed) $! reducedSubscribers
1528{-# INLINE subscribeFanSubscribed #-}
1755{-# INLINE subscribeFanSubscribed #-}
1529−subscribeFanSubscribed :: GCompare k => k a -> FanSubscribed x k -> Subscriber x a -> IO WeakBagTicket
1756+subscribeFanSubscribed :: GCompare k => k a -> FanSubscribed x k v -> Subscriber x (v a) -> IO WeakBagTicket
1530subscribeFanSubscribed k subscribed sub = do
1757subscribeFanSubscribed k subscribed sub = do
1531 subscribers <- readIORef $ fanSubscribedSubscribers subscribed
1758 subscribers <- readIORef $ fanSubscribedSubscribers subscribed
1532 case DMap.lookup k subscribers of
1759 case DMap.lookup k subscribers of
@@ -1538,8 +1765,8 @@ subscribeFanSubscribed k subscribed sub = do
1538 return sln
1765 return sln
1539 Just (FanSubscribedChildren list _ weakSelf) -> {-# SCC "hitSubscribeFanSubscribed" #-} WeakBag.insert sub list weakSelf cleanupFanSubscribed
1766 Just (FanSubscribedChildren list _ weakSelf) -> {-# SCC "hitSubscribeFanSubscribed" #-} WeakBag.insert sub list weakSelf cleanupFanSubscribed
1541−{-# SPECIALIZE getSwitchSubscribed :: Switch x a -> Subscriber x a -> EventM x (WeakBagTicket, SwitchSubscribed x a, Maybe a) #-}
1768+{-# INLINABLE getSwitchSubscribed #-}
1542−getSwitchSubscribed :: (Defer (SomeHoldInit x) m, Defer (SomeAssignment x) m, Defer (SomeMergeInit x) m, Defer SomeClear m, Defer (SomeResetCoincidence x) m, HasCurrentHeight x m, HasSpiderTimeline x m, m ~ EventM x) => Switch x a -> Subscriber x a -> m (WeakBagTicket, SwitchSubscribed x a, Maybe a)
1769+getSwitchSubscribed :: HasSpiderTimeline x => Switch x a -> Subscriber x a -> EventM x (WeakBagTicket, SwitchSubscribed x a, Maybe a)
1543getSwitchSubscribed s sub = do
1770getSwitchSubscribed s sub = do
1544 mSubscribed <- liftIO $ readIORef $ switchSubscribed s
1771 mSubscribed <- liftIO $ readIORef $ switchSubscribed s
1545 case mSubscribed of
1772 case mSubscribed of
@@ -1564,6 +1791,9 @@ getSwitchSubscribed s sub = do
1564 when (isJust parentOcc) $ scheduleClear occRef
1791 when (isJust parentOcc) $ scheduleClear occRef
1565 weakSelf <- liftIO $ newIORef $ error "getSwitchSubscribed: weakSelf not yet initialized"
1792 weakSelf <- liftIO $ newIORef $ error "getSwitchSubscribed: weakSelf not yet initialized"
1566 (subs, slnForSub) <- liftIO $ WeakBag.singleton sub weakSelf cleanupSwitchSubscribed
1793 (subs, slnForSub) <- liftIO $ WeakBag.singleton sub weakSelf cleanupSwitchSubscribed
1794+#ifdef DEBUG_NODEIDS
1795+ nid <- liftIO newNodeId
1567 let !subscribed = SwitchSubscribed
1797 let !subscribed = SwitchSubscribed
1568 { switchSubscribedCachedSubscribed = switchSubscribed s
1798 { switchSubscribedCachedSubscribed = switchSubscribed s
1569 , switchSubscribedOccurrence = occRef
1799 , switchSubscribedOccurrence = occRef
@@ -1576,7 +1806,7 @@ getSwitchSubscribed s sub = do
1576 , switchSubscribedCurrentParent = subscriptionRef
1806 , switchSubscribedCurrentParent = subscriptionRef
1577 , switchSubscribedWeakSelf = weakSelf
1807 , switchSubscribedWeakSelf = weakSelf
1578#ifdef DEBUG_NODEIDS
1808#ifdef DEBUG_NODEIDS
1579− , switchSubscribedNodeId = unsafeNodeId s
1809+ , switchSubscribedNodeId = nid
1582 liftIO $ writeIORef weakSelf =<< evaluate =<< mkWeakPtrWithDebug subscribed "switchSubscribedWeakSelf"
1812 liftIO $ writeIORef weakSelf =<< evaluate =<< mkWeakPtrWithDebug subscribed "switchSubscribedWeakSelf"
@@ -1594,8 +1824,8 @@ cleanupSwitchSubscribed subscribed = do
1594subscribeSwitchSubscribed :: SwitchSubscribed x a -> Subscriber x a -> IO WeakBagTicket
1824subscribeSwitchSubscribed :: SwitchSubscribed x a -> Subscriber x a -> IO WeakBagTicket
1595subscribeSwitchSubscribed subscribed sub = WeakBag.insert sub (switchSubscribedSubscribers subscribed) (switchSubscribedWeakSelf subscribed) cleanupSwitchSubscribed
1825subscribeSwitchSubscribed subscribed sub = WeakBag.insert sub (switchSubscribedSubscribers subscribed) (switchSubscribedWeakSelf subscribed) cleanupSwitchSubscribed
1597−{-# SPECIALIZE getCoincidenceSubscribed :: Coincidence x a -> Subscriber x a -> EventM x (WeakBagTicket, CoincidenceSubscribed x a, Maybe a) #-}
1827+{-# INLINABLE getCoincidenceSubscribed #-}
1598−getCoincidenceSubscribed :: forall x a m. (Defer (SomeAssignment x) m, Defer (SomeHoldInit x) m, Defer (SomeMergeInit x) m, Defer SomeClear m, HasCurrentHeight x m, Defer (SomeResetCoincidence x) m, HasSpiderTimeline x m, m ~ EventM x) => Coincidence x a -> Subscriber x a -> m (WeakBagTicket, CoincidenceSubscribed x a, Maybe a)
1828+getCoincidenceSubscribed :: forall x a. HasSpiderTimeline x => Coincidence x a -> Subscriber x a -> EventM x (WeakBagTicket, CoincidenceSubscribed x a, Maybe a)
1599getCoincidenceSubscribed c sub = do
1829getCoincidenceSubscribed c sub = do
1600 mSubscribed <- liftIO $ readIORef $ coincidenceSubscribed c
1830 mSubscribed <- liftIO $ readIORef $ coincidenceSubscribed c
1601 case mSubscribed of
1831 case mSubscribed of
@@ -1621,6 +1851,9 @@ getCoincidenceSubscribed c sub = do
1621 scheduleClear innerSubdRef
1851 scheduleClear innerSubdRef
1622 weakSelf <- liftIO $ newIORef $ error "getCoincidenceSubscribed: weakSelf not yet implemented"
1852 weakSelf <- liftIO $ newIORef $ error "getCoincidenceSubscribed: weakSelf not yet implemented"
1623 (subs, slnForSub) <- liftIO $ WeakBag.singleton sub weakSelf cleanupCoincidenceSubscribed
1853 (subs, slnForSub) <- liftIO $ WeakBag.singleton sub weakSelf cleanupCoincidenceSubscribed
1854+#ifdef DEBUG_NODEIDS
1855+ nid <- liftIO newNodeId
1624 let subscribed = CoincidenceSubscribed
1857 let subscribed = CoincidenceSubscribed
1625 { coincidenceSubscribedCachedSubscribed = coincidenceSubscribed c
1858 { coincidenceSubscribedCachedSubscribed = coincidenceSubscribed c
1626 , coincidenceSubscribedOccurrence = occRef
1859 , coincidenceSubscribedOccurrence = occRef
@@ -1631,7 +1864,7 @@ getCoincidenceSubscribed c sub = do
1631 , coincidenceSubscribedInnerParent = innerSubdRef
1864 , coincidenceSubscribedInnerParent = innerSubdRef
1632 , coincidenceSubscribedWeakSelf = weakSelf
1865 , coincidenceSubscribedWeakSelf = weakSelf
1633#ifdef DEBUG_NODEIDS
1866#ifdef DEBUG_NODEIDS
1634− , coincidenceSubscribedNodeId = unsafeNodeId c
1867+ , coincidenceSubscribedNodeId = nid
1637 liftIO $ writeIORef weakSelf =<< evaluate =<< mkWeakPtrWithDebug subscribed "CoincidenceSubscribed"
1870 liftIO $ writeIORef weakSelf =<< evaluate =<< mkWeakPtrWithDebug subscribed "CoincidenceSubscribed"
@@ -1648,120 +1881,511 @@ cleanupCoincidenceSubscribed subscribed = do
1648subscribeCoincidenceSubscribed :: CoincidenceSubscribed x a -> Subscriber x a -> IO WeakBagTicket
1881subscribeCoincidenceSubscribed :: CoincidenceSubscribed x a -> Subscriber x a -> IO WeakBagTicket
1649subscribeCoincidenceSubscribed subscribed sub = WeakBag.insert sub (coincidenceSubscribedSubscribers subscribed) (coincidenceSubscribedWeakSelf subscribed) cleanupCoincidenceSubscribed
1882subscribeCoincidenceSubscribed subscribed sub = WeakBag.insert sub (coincidenceSubscribedSubscribers subscribed) (coincidenceSubscribedWeakSelf subscribed) cleanupCoincidenceSubscribed
1651−{-# INLINE merge #-}
1884+{-# INLINE mergeG #-}
1652−merge :: GCompare k => Dynamic x (R.PatchDMap k (Event x)) -> Event x (DMap k Identity)
1885+mergeG :: forall k q x v. (HasSpiderTimeline x, GCompare k)
1653−merge m = eventMerge $ Merge
1886+ => (forall a. q a -> Event x (v a))
1654− { mergeParents = m
1887+ -> DynamicS x (PatchDMap k q) -> Event x (DMap k v)
1655− , mergeSubscribed = unsafeNewIORef m Nothing
1888+mergeG nt d = cacheEvent (mergeCheap nt d)
1890+{-# INLINE mergeWithMove #-}
1891+mergeWithMove :: forall k v q x. (HasSpiderTimeline x, GCompare k)
1892+ => (forall a. q a -> Event x (v a))
1893+ -> DynamicS x (PatchDMapWithMove k q) -> Event x (DMap k v)
1894+mergeWithMove nt d = cacheEvent (mergeCheapWithMove nt d)
1896+{-# INLINE [1] mergeCheap #-}
1898+ :: forall k x q v. (HasSpiderTimeline x, GCompare k)
1899+ => (forall a. q a -> Event x (v a))
1900+ -> DynamicS x (PatchDMap k q)
1901+ -> Event x (DMap k v)
1902+mergeCheap nt = mergeGCheap' unMergeSubscribedParent getInitialSubscribers updateMe destroy
1904+ updateMe :: MergeUpdateFunc k v x (PatchDMap k q) (MergeSubscribedParent x)
1905+ updateMe subscriber heightBagRef oldParents (PatchDMap p) = do
1906+ let f (subscriptionsToKill, ps) (k :=> ComposeMaybe me) = do
1907+ (mOldSubd, newPs) <- case me of
1908+ Nothing -> return $ DMap.updateLookupWithKey (\_ _ -> Nothing) k ps
1910+ let s = subscriber $ return k
1911+ subscription@(EventSubscription _ subd) <- subscribe (nt e) s
1912+ newParentHeight <- liftIO $ getEventSubscribedHeight subd
1913+ let newParent = MergeSubscribedParent subscription
1914+ liftIO $ modifyIORef' heightBagRef $ heightBagAdd newParentHeight
1915+ return $ DMap.insertLookupWithKey' (\_ new _ -> new) k newParent ps
1916+ forM_ mOldSubd $ \oldSubd -> do
1917+ oldHeight <- liftIO $ getEventSubscribedHeight $
1918+ _eventSubscription_subscribed $ unMergeSubscribedParent oldSubd
1920+ liftIO $ modifyIORef heightBagRef $ heightBagRemove oldHeight
1921+ return (maybeToList (unMergeSubscribedParent <$> mOldSubd) ++ subscriptionsToKill, newPs)
1922+ foldM f ([], oldParents) $ DMap.toList p
1924+ getInitialSubscribers :: MergeInitFunc k v q x (MergeSubscribedParent x)
1925+ getInitialSubscribers initialParents subscriber = do
1926+ subscribers <- forM (DMap.toList initialParents) $ \(k :=> e) -> do
1927+ let s = subscriber $ return k
1928+ (subscription@(EventSubscription _ parentSubd), parentOcc) <- subscribeAndRead (nt e) s
1929+ height <- liftIO $ getEventSubscribedHeight parentSubd
1930+ return (fmap (k :=>) parentOcc, height, k :=> MergeSubscribedParent subscription)
1931+ return ( DMap.fromDistinctAscList $ mapMaybe (\(x, _, _) -> x) subscribers
1932+ , fmap (\(_, h, _) -> h) subscribers --TODO: Assert that there's no invalidHeight in here
1933+ , DMap.fromDistinctAscList $ map (\(_, _, x) -> x) subscribers
1936+ destroy :: MergeDestroyFunc k (MergeSubscribedParent x)
1937+ destroy s = forM_ (DMap.toList s) $ \(_ :=> MergeSubscribedParent sub) -> unsubscribe sub
1939+{-# INLINE [1] mergeCheapWithMove #-}
1940+mergeCheapWithMove :: forall k x v q. (HasSpiderTimeline x, GCompare k)
1941+ => (forall a. q a -> Event x (v a))
1942+ -> DynamicS x (PatchDMapWithMove k q)
1943+ -> Event x (DMap k v)
1944+mergeCheapWithMove nt = mergeGCheap' _mergeSubscribedParentWithMove_subscription getInitialSubscribers updateMe destroy
1946+ updateMe :: MergeUpdateFunc k v x (PatchDMapWithMove k q) (MergeSubscribedParentWithMove x k)
1947+ updateMe subscriber heightBagRef oldParents p = do
1948+ -- Prepare new parents for insertion
1949+ let subscribeParent :: forall a. k a -> Event x (v a) -> EventM x (MergeSubscribedParentWithMove x k a)
1950+ subscribeParent k e = do
1951+ keyRef <- liftIO $ newIORef k
1952+ let s = subscriber $ liftIO $ readIORef keyRef
1953+ subscription@(EventSubscription _ subd) <- subscribe e s
1955+ newParentHeight <- getEventSubscribedHeight subd
1956+ modifyIORef' heightBagRef $ heightBagAdd newParentHeight
1957+ return $ MergeSubscribedParentWithMove subscription keyRef
1958+ p' <- PatchDMapWithMove.traversePatchDMapWithMoveWithKey (\k q -> subscribeParent k (nt q)) p
1959+ -- Collect old parents for deletion and update the keys of moved parents
1960+ let moveOrDelete :: forall a. k a -> PatchDMapWithMove.NodeInfo k q a -> MergeSubscribedParentWithMove x k a -> Constant (EventM x (Maybe (EventSubscription x))) a
1961+ moveOrDelete _ ni parent = Constant $ case getComposeMaybe $ PatchDMapWithMove._nodeInfo_to ni of
1963+ oldHeight <- liftIO $ getEventSubscribedHeight $ _eventSubscription_subscribed $
1964+ _mergeSubscribedParentWithMove_subscription parent
1966+ liftIO $ modifyIORef heightBagRef $ heightBagRemove oldHeight
1967+ return $ Just $ _mergeSubscribedParentWithMove_subscription parent
1969+ liftIO $ writeIORef (_mergeSubscribedParentWithMove_key parent) $! toKey
1971+ toDelete <- fmap catMaybes $ mapM (\(_ :=> v) -> getConstant v) $ DMap.toList $
1972+ DMap.intersectionWithKey moveOrDelete (unPatchDMapWithMove p) oldParents
1974+ return (toDelete, applyAlways p' oldParents)
1975+ getInitialSubscribers :: MergeInitFunc k v q x (MergeSubscribedParentWithMove x k)
1976+ getInitialSubscribers initialParents subscriber = do
1977+ subscribers <- forM (DMap.toList initialParents) $ \(k :=> e) -> do
1978+ keyRef <- liftIO $ newIORef k
1979+ let s = subscriber $ liftIO $ readIORef keyRef
1980+ (subscription@(EventSubscription _ parentSubd), parentOcc) <- subscribeAndRead (nt e) s
1981+ height <- liftIO $ getEventSubscribedHeight parentSubd
1982+ return (fmap (k :=>) parentOcc, height, k :=> MergeSubscribedParentWithMove subscription keyRef)
1983+ return ( DMap.fromDistinctAscList $ mapMaybe (\(x, _, _) -> x) subscribers
1984+ , fmap (\(_, h, _) -> h) subscribers --TODO: Assert that there's no invalidHeight in here
1985+ , DMap.fromDistinctAscList $ map (\(_, _, x) -> x) subscribers
1988+ destroy :: MergeDestroyFunc k (MergeSubscribedParentWithMove x k)
1989+ destroy s = forM_ (DMap.toList s) $ \(_ :=> MergeSubscribedParentWithMove sub _) -> unsubscribe sub
1991+type MergeUpdateFunc k v x p s
1992+ = (forall a. EventM x (k a) -> Subscriber x (v a))
1996+ -> EventM x ([EventSubscription x], DMap k s)
1998+type MergeGetSubscription x s = forall a. s a -> EventSubscription x
2000+type MergeInitFunc k v q x s
2002+ -> (forall a. EventM x (k a) -> Subscriber x (v a))
2003+ -> EventM x (DMap k v, [Height], DMap k s)
2005+type MergeDestroyFunc k s
2009+data Merge x k v s = Merge
2010+ { _merge_parentsRef :: {-# UNPACK #-} !(IORef (DMap k s))
2011+ , _merge_heightBagRef :: {-# UNPACK #-} !(IORef HeightBag)
2012+ , _merge_heightRef :: {-# UNPACK #-} !(IORef Height)
2013+ , _merge_sub :: {-# UNPACK #-} !(Subscriber x (DMap k v))
2014+ , _merge_accumRef :: {-# UNPACK #-} !(IORef (DMap k v))
2017+invalidateMergeHeight :: Merge x k v s -> IO ()
2018+invalidateMergeHeight m = invalidateMergeHeight' (_merge_heightRef m) (_merge_sub m)
2020+invalidateMergeHeight' :: IORef Height -> Subscriber x a -> IO ()
2021+invalidateMergeHeight' heightRef sub = do
2022+ oldHeight <- readIORef heightRef
2023+ -- If the height used to be valid, it must be invalid now; we should never have *more* heights than we have parents
2024+ when (oldHeight /= invalidHeight) $ do
2025+ writeIORef heightRef $! invalidHeight
2026+ subscriberInvalidateHeight sub oldHeight
2028+revalidateMergeHeight :: Merge x k v s -> IO ()
2029+revalidateMergeHeight m = do
2030+ currentHeight <- readIORef $ _merge_heightRef m
2032+ -- revalidateMergeHeight may be called multiple times; perhaps the's a way to finesse it to avoid this check
2033+ when (currentHeight == invalidHeight) $ do
2034+ heights <- readIORef $ _merge_heightBagRef m
2035+ parents <- readIORef $ _merge_parentsRef m
2036+ -- When the number of heights in the bag reaches the number of parents, we should have a valid height
2037+ case heightBagSize heights `compare` DMap.size parents of
2040+ let height = succHeight $ heightBagMax heights
2041+ traceInvalidateHeight $ "recalculateSubscriberHeight: height: " <> show height
2042+ writeIORef (_merge_heightRef m) $! height
2043+ subscriberRecalculateHeight (_merge_sub m) height
2044+ GT -> error $ "revalidateMergeHeight: more heights (" <> show (heightBagSize heights) <> ") than parents (" <> show (DMap.size parents) <> ") for Merge"
2046+scheduleMergeSelf :: HasSpiderTimeline x => Merge x k v s -> Height -> EventM x ()
2047+scheduleMergeSelf m height = scheduleMerge' height (_merge_heightRef m) $ do
2048+ vals <- liftIO $ readIORef $ _merge_accumRef m
2049+ -- Once we're done with this, we can clear it immediately, because if there's a cacheEvent in front of us,
2050+ -- it'll handle subsequent subscribers, and if not, we won't get subsequent subscribers
2051+ liftIO $ writeIORef (_merge_accumRef m) $! DMap.empty
2052+ --TODO: Assert that m is not empty
2053+ subscriberPropagate (_merge_sub m) vals
2055+checkCycle :: HasSpiderTimeline x => EventSubscribed x -> EventM x ()
2056+checkCycle subscribed = liftIO $ do
2057+ height <- readIORef (eventSubscribedHeightRef subscribed)
2059+ -- currentHeight <- getCurrentHeight
2060+ -- when (height <= currentHeight) $ if height /= invalidHeight
2062+ -- myStack <- liftIO $ whoCreatedIORef undefined --TODO
2063+ -- error $ "Height (" ++ show height ++ ") is not greater than current height (" ++ show currentHeight ++ ")\n" ++ unlines (reverse myStack)
2065+ when (height == invalidHeight) $
2068+ nodesInvolvedInCycle <- walkInvalidHeightParents subscribed
2069+ stacks <- forM nodesInvolvedInCycle whoCreatedEventSubscribed
2070+ throwIO (EventLoopException stacks)
2072+ throwIO EventLoopException
2076+mergeSubscriber :: forall x k v s a. (HasSpiderTimeline x, GCompare k) => EventSubscribed x -> Merge x k v s -> EventM x (k a) -> Subscriber x (v a)
2077+mergeSubscriber subscribed m getKey = Subscriber
2078+ { subscriberPropagate = \a -> do
2079+ oldM <- liftIO $ readIORef $ _merge_accumRef m
2081+ let newM = DMap.insertWith (error "Same key fired multiple times for Merge") k a oldM
2082+ tracePropagate (Proxy :: Proxy x) $ " DMap.size oldM = " <> show (DMap.size oldM) <> "; DMap.size newM = " <> show (DMap.size newM)
2083+ liftIO $ writeIORef (_merge_accumRef m) $! newM
2084+ when (DMap.null oldM) $ do -- Only schedule the firing once
2085+ height <- liftIO $ readIORef $ _merge_heightRef m
2086+ checkCycle subscribed
2088+ scheduleMergeSelf m height
2089+ , subscriberInvalidateHeight = \old -> do --TODO: When removing a parent doesn't actually change the height, maybe we can avoid invalidating
2090+ modifyIORef' (_merge_heightBagRef m) $ heightBagRemove old
2091+ invalidateMergeHeight m
2092+ , subscriberRecalculateHeight = \new -> do
2093+ modifyIORef' (_merge_heightBagRef m) $ heightBagAdd new
2094+ revalidateMergeHeight m
2097+--TODO: Be able to run as much of this as possible promptly
2098+updateMerge :: (HasSpiderTimeline x, GCompare k) => EventSubscribed x -> Merge x k v s -> MergeUpdateFunc k v x p s -> p -> SomeMergeUpdate x
2099+updateMerge subscribed m updateFunc p = SomeMergeUpdate updateMe (invalidateMergeHeight m) (revalidateMergeHeight m)
2100+ where updateMe = do
2101+ oldParents <- liftIO $ readIORef $ _merge_parentsRef m
2102+ (subscriptionsToKill, newParents) <- updateFunc (mergeSubscriber subscribed m) (_merge_heightBagRef m) oldParents p
2103+ liftIO $ writeIORef (_merge_parentsRef m) $! newParents
2104+ return subscriptionsToKill
2106+{-# INLINE mergeGCheap' #-}
2107+mergeGCheap' :: forall k v x p s q. (HasSpiderTimeline x, GCompare k, PatchTarget p ~ DMap k q)
2108+ => MergeGetSubscription x s -> MergeInitFunc k v q x s -> MergeUpdateFunc k v x p s -> MergeDestroyFunc k s -> DynamicS x p -> Event x (DMap k v)
2109+mergeGCheap' getParent getInitialSubscribers updateFunc destroy d = Event $ \sub -> do
2110+ initialParents <- readBehaviorUntracked $ dynamicCurrent d
2111+ accumRef <- liftIO $ newIORef $ error "merge: accumRef not yet initialized"
2112+ heightRef <- liftIO $ newIORef $ error "merge: heightRef not yet initialized"
2113+ heightBagRef <- liftIO $ newIORef $ error "merge: heightBagRef not yet initialized"
2114+ parentsRef :: IORef (DMap k s) <- liftIO $ newIORef $ error "merge: parentsRef not yet initialized"
2115+ changeSubdRef <- liftIO $ newIORef $ error "getMergeSubscribed: changeSubdRef not yet initialized"
2117+ let subscribed = EventSubscribed
2118+ { eventSubscribedHeightRef = heightRef
2119+ , eventSubscribedRetained = toAny (parentsRef, changeSubdRef)
2121+ , eventSubscribedGetParents = do
2122+ let getParent' (_ :=> v) = _eventSubscription_subscribed (getParent v)
2123+ fmap getParent' . DMap.toList <$> readIORef parentsRef
2124+ , eventSubscribedHasOwnHeightRef = False
2125+ , eventSubscribedWhoCreated = whoCreatedIORef heightRef
2130+ { _merge_parentsRef = parentsRef
2131+ , _merge_heightBagRef = heightBagRef
2132+ , _merge_heightRef = heightRef
2134+ , _merge_accumRef = accumRef
2136+ (dm, heights, initialParentState) <- getInitialSubscribers initialParents $ mergeSubscriber subscribed m
2137+ let myHeightBag = heightBagFromList $ filter (/= invalidHeight) heights
2138+ myHeight = if invalidHeight `elem` heights
2140+ else succHeight $ heightBagMax myHeightBag
2141+ currentHeight <- getCurrentHeight
2142+ let (occ, accum) = if currentHeight >= myHeight -- If we should have fired by now
2143+ then (if DMap.null dm then Nothing else Just dm, DMap.empty)
2145+ unless (DMap.null accum) $ scheduleMergeSelf m myHeight
2146+ liftIO $ writeIORef accumRef $! accum
2147+ liftIO $ writeIORef heightRef $! myHeight
2148+ liftIO $ writeIORef heightBagRef $! myHeightBag
2149+ liftIO $ writeIORef parentsRef $! initialParentState
2150+ defer $ SomeMergeInit $ do
2151+ let changeSubscriber = Subscriber
2152+ { subscriberPropagate = \a -> {-# SCC "traverseMergeChange" #-} do
2153+ tracePropagate (Proxy :: Proxy x) "SubscriberMerge/Change"
2154+ defer $ updateMerge subscribed m updateFunc a
2155+ , subscriberInvalidateHeight = \_ -> return ()
2156+ , subscriberRecalculateHeight = \_ -> return ()
2158+ (changeSubscription, change) <- subscribeAndRead (dynamicUpdated d) changeSubscriber
2159+ forM_ change $ \c -> defer $ updateMerge subscribed m updateFunc c
2160+ -- We explicitly hold on to the unsubscribe function from subscribing to the update event.
2161+ -- If we don't do this, there are certain cases where mergeCheap will fail to properly retain
2162+ -- its subscription.
2163+ liftIO $ writeIORef changeSubdRef (changeSubscriber, changeSubscription)
2164+ let unsubscribeAll = destroy =<< readIORef parentsRef
2166+ return (EventSubscription unsubscribeAll subscribed, occ)
2169+mergeInt :: forall x a. (HasSpiderTimeline x) => DynamicS x (PatchIntMap (Event x a)) -> Event x (IntMap a)
2170+mergeInt = cacheEvent . mergeIntCheap
2172+{-# INLINABLE mergeIntCheap #-}
2173+mergeIntCheap :: forall x a. (HasSpiderTimeline x) => DynamicS x (PatchIntMap (Event x a)) -> Event x (IntMap a)
2174+mergeIntCheap d = Event $ \sub -> do
2175+ initialParents <- readBehaviorUntracked $ dynamicCurrent d
2176+ accum <- liftIO $ FastMutableIntMap.newEmpty
2177+ heightRef <- liftIO $ newIORef zeroHeight
2178+ heightBagRef <- liftIO $ newIORef heightBagEmpty
2179+ parents <- liftIO $ FastMutableIntMap.newEmpty
2180+ changeSubdRef <- liftIO $ newIORef $ error "getMergeSubscribed: changeSubdRef not yet initialized"
2181+ let subscribed = EventSubscribed
2182+ { eventSubscribedHeightRef = heightRef
2183+ , eventSubscribedRetained = toAny (parents, changeSubdRef)
2185+ , eventSubscribedGetParents = fmap (_eventSubscription_subscribed . snd) <$> FastMutableIntMap.toList parents
2186+ , eventSubscribedHasOwnHeightRef = False
2187+ , eventSubscribedWhoCreated = whoCreatedIORef heightRef
2190+ let scheduleSelf = do
2191+ height <- liftIO $ readIORef $ heightRef
2192+ scheduleMerge' height heightRef $ do
2193+ vals <- liftIO $ FastMutableIntMap.getFrozenAndClear accum
2194+ subscriberPropagate sub vals
2195+ invalidateMyHeight = invalidateMergeHeight' heightRef sub
2196+ recalculateMyHeight = do
2197+ currentHeight <- readIORef heightRef
2198+ when (currentHeight == invalidHeight) $ do --TODO: This will almost always be true; can we get rid of this check and just proceed to the next one always?
2199+ heights <- readIORef heightBagRef
2200+ numParents <- FastMutableIntMap.size parents
2201+ case heightBagSize heights `compare` numParents of
2204+ let height = succHeight $ heightBagMax heights
2205+ traceInvalidateHeight $ "recalculateSubscriberHeight: height: " <> show height
2206+ writeIORef heightRef $! height
2207+ subscriberRecalculateHeight sub height
2208+ GT -> error $ "revalidateMergeHeight: more heights (" <> show (heightBagSize heights) <> ") than parents (" <> show numParents <> ") for Merge"
2209+ mySubscriber k = Subscriber
2210+ { subscriberPropagate = \a -> do
2211+ checkCycle subscribed
2213+ wasEmpty <- liftIO $ FastMutableIntMap.isEmpty accum
2214+ liftIO $ FastMutableIntMap.insert accum k a
2215+ when wasEmpty scheduleSelf
2216+ , subscriberInvalidateHeight = \old -> do
2217+ modifyIORef' heightBagRef $ heightBagRemove old
2219+ , subscriberRecalculateHeight = \new -> do
2220+ modifyIORef' heightBagRef $ heightBagAdd new
2221+ recalculateMyHeight
2223+ forM_ (IntMap.toList initialParents) $ \(k, p) -> do
2224+ (subscription@(EventSubscription _ parentSubd), parentOcc) <- subscribeAndRead p $ mySubscriber k
2226+ forM_ parentOcc $ FastMutableIntMap.insert accum k
2227+ FastMutableIntMap.insert parents k subscription
2228+ height <- getEventSubscribedHeight parentSubd
2229+ if height == invalidHeight
2230+ then writeIORef heightRef invalidHeight
2232+ modifyIORef' heightBagRef $ heightBagAdd height
2233+ modifyIORef' heightRef $ \oldHeight ->
2234+ if oldHeight == invalidHeight
2236+ else max (succHeight height) oldHeight
2237+ myHeight <- liftIO $ readIORef heightRef
2238+ currentHeight <- getCurrentHeight
2239+ isEmpty <- liftIO $ FastMutableIntMap.isEmpty accum
2240+ occ <- if currentHeight >= myHeight -- If we should have fired by now
2242+ then return Nothing
2243+ else liftIO $ Just <$> FastMutableIntMap.getFrozenAndClear accum
2244+ else do when (not isEmpty) scheduleSelf -- We have things accumulated, but we shouldn't have fired them yet
2246+ defer $ SomeMergeInit $ do
2247+ let updateMe a = SomeMergeUpdate u invalidateMyHeight recalculateMyHeight
2250+ let f k newParent = do
2251+ subscription@(EventSubscription _ subd) <- subscribe newParent $ mySubscriber k
2252+ newParentHeight <- liftIO $ getEventSubscribedHeight subd
2253+ liftIO $ modifyIORef' heightBagRef $ heightBagAdd newParentHeight
2254+ return subscription
2255+ newSubscriptions <- FastMutableIntMap.traverseIntMapPatchWithKey f a
2256+ oldParents <- liftIO $ FastMutableIntMap.applyPatch parents newSubscriptions
2257+ liftIO $ for_ oldParents $ \oldParent -> do
2258+ oldParentHeight <- getEventSubscribedHeight $ _eventSubscription_subscribed oldParent
2260+ print ("updateMe", oldParentHeight)
2261+ modifyIORef' heightBagRef $ heightBagRemove oldParentHeight
2262+ return $ IntMap.elems oldParents
2263+ let changeSubscriber = Subscriber
2264+ { subscriberPropagate = \a -> {-# SCC "traverseMergeChange" #-} do
2265+ tracePropagate (Proxy :: Proxy x) $ "SubscriberMergeInt/Change"
2267+ , subscriberInvalidateHeight = \_ -> return ()
2268+ , subscriberRecalculateHeight = \_ -> return ()
2270+ (changeSubscription, change) <- subscribeAndRead (dynamicUpdated d) changeSubscriber
2271+ forM_ change $ \c -> defer $ updateMe c
2272+ -- We explicitly hold on to the unsubscribe function from subscribing to the update event.
2273+ -- If we don't do this, there are certain cases where mergeCheap will fail to properly retain
2274+ -- its subscription.
2275+ liftIO $ writeIORef changeSubdRef (changeSubscriber, changeSubscription)
2276+ let unsubscribeAll = traverse_ unsubscribe =<< FastMutableIntMap.getFrozenAndClear parents
2279+ return (EventSubscription unsubscribeAll subscribed, occ)
1658newtype EventSelector x k = EventSelector { select :: forall a. k a -> Event x a }
2281newtype EventSelector x k = EventSelector { select :: forall a. k a -> Event x a }
2282+newtype EventSelectorG x k v = EventSelectorG { selectG :: forall a. k a -> Event x (v a) }
1660−fan :: GCompare k => Event x (DMap k Identity) -> EventSelector x k
2284+fanG :: (HasSpiderTimeline x, GCompare k) => Event x (DMap k v) -> EventSelectorG x k v
1661−fan e =
2285+fanG e = unsafePerformIO $ do
2286+ ref <- newIORef Nothing
1662 let f = Fan
2287 let f = Fan
1663 { fanParent = e
2288 { fanParent = e
1664− , fanSubscribed = unsafeNewIORef e Nothing
2289+ , fanSubscribed = ref
1666− in EventSelector $ \k -> eventFan k f
2291+ pure $ EventSelectorG $ \k -> eventFan k f
1668−runHoldInits :: IORef [SomeHoldInit x] -> IORef [SomeMergeInit x] -> EventM x ()
2293+runHoldInits :: HasSpiderTimeline x => IORef [SomeHoldInit x] -> IORef [SomeDynInit x] -> IORef [SomeMergeInit x] -> EventM x ()
1669−runHoldInits holdInitRef mergeInitRef = do
2294+runHoldInits holdInitRef dynInitRef mergeInitRef = do
1670 holdInits <- liftIO $ readIORef holdInitRef
2295 holdInits <- liftIO $ readIORef holdInitRef
2296+ dynInits <- liftIO $ readIORef dynInitRef
1671 mergeInits <- liftIO $ readIORef mergeInitRef
2297 mergeInits <- liftIO $ readIORef mergeInitRef
1672− unless (null holdInits && null mergeInits) $ do
2298+ unless (null holdInits && null dynInits && null mergeInits) $ do
1673 liftIO $ writeIORef holdInitRef []
2299 liftIO $ writeIORef holdInitRef []
2300+ liftIO $ writeIORef dynInitRef []
1674 liftIO $ writeIORef mergeInitRef []
2301 liftIO $ writeIORef mergeInitRef []
1675 mapM_ initHold holdInits
2302 mapM_ initHold holdInits
1676− mapM_ initMerge mergeInits
2303+ mapM_ initDyn dynInits
1677− runHoldInits holdInitRef mergeInitRef
2304+ mapM_ unSomeMergeInit mergeInits
2305+ runHoldInits holdInitRef dynInitRef mergeInitRef
1679−initHold :: SomeHoldInit x -> EventM x ()
2307+initHold :: HasSpiderTimeline x => SomeHoldInit x -> EventM x ()
1680initHold (SomeHoldInit h) = void $ getHoldEventSubscription h
2308initHold (SomeHoldInit h) = void $ getHoldEventSubscription h
1682−initMerge :: SomeMergeInit x -> EventM x ()
2310+initDyn :: HasSpiderTimeline x => SomeDynInit x -> EventM x ()
1683−initMerge (SomeMergeInit subscribed changed) = do
2311+initDyn (SomeDynInit d) = void $ getDynHold d
1684− changeSub <- liftIO $ newSubscriberMergeChange subscribed
1685− (EventSubscription _ changeSubd, change) <- subscribeAndRead changed changeSub
1686− forM_ change $ \c -> defer $ SomeMergeUpdate c subscribed
1687− liftIO $ writeIORef (mergeSubscribedChange subscribed) (changeSub, changeSubd)
1689−-- | Run an event action outside of a frame
2313+newEventEnv :: IO (EventEnv x)
1690−runFrame :: forall x a. EventM x a -> SpiderHost x a --TODO: This function also needs to hold the mutex
2314+newEventEnv = do
1691−runFrame a = SpiderHost $ ask >>= \spiderTimeline -> lift $ do
1692− -- Clear out pending unsubscriptions; these will need to happen eventually anyway, and might cause us a lot of extra work during the frame, so get rid of them now
1693− pendingCleanups <- atomicModifyIORef (_spiderTimeline_cleanups spiderTimeline) $ \x -> ([], x)
1694− {-# SCC "cleanups" #-} sequence_ pendingCleanups
1695 toAssignRef <- newIORef [] -- This should only actually get used when events are firing
2315 toAssignRef <- newIORef [] -- This should only actually get used when events are firing
1696 holdInitRef <- newIORef []
2316 holdInitRef <- newIORef []
2317+ dynInitRef <- newIORef []
1697 mergeUpdateRef <- newIORef []
2318 mergeUpdateRef <- newIORef []
1698 mergeInitRef <- newIORef []
2319 mergeInitRef <- newIORef []
1699 heightRef <- newIORef zeroHeight
2320 heightRef <- newIORef zeroHeight
1700 toClearRef <- newIORef []
2321 toClearRef <- newIORef []
2322+ toClearIntRef <- newIORef []
1701 toClearRootRef <- newIORef []
2323 toClearRootRef <- newIORef []
1702 coincidenceInfosRef <- newIORef []
2324 coincidenceInfosRef <- newIORef []
1703− delayedRef <- liftIO $ newIORef IntMap.empty
2325+ delayedRef <- newIORef IntMap.empty
1704− let env = EventEnv spiderTimeline toAssignRef holdInitRef mergeUpdateRef mergeInitRef toClearRef toClearRootRef heightRef coincidenceInfosRef delayedRef
2326+ return $ EventEnv toAssignRef holdInitRef dynInitRef mergeUpdateRef mergeInitRef toClearRef toClearIntRef toClearRootRef heightRef coincidenceInfosRef delayedRef
2328+clearEventEnv :: EventEnv x -> IO ()
2329+clearEventEnv (EventEnv toAssignRef holdInitRef dynInitRef mergeUpdateRef mergeInitRef toClearRef toClearIntRef toClearRootRef heightRef coincidenceInfosRef delayedRef) = do
2330+ writeIORef toAssignRef []
2331+ writeIORef holdInitRef []
2332+ writeIORef dynInitRef []
2333+ writeIORef mergeUpdateRef []
2334+ writeIORef mergeInitRef []
2335+ writeIORef heightRef zeroHeight
2336+ writeIORef toClearRef []
2337+ writeIORef toClearIntRef []
2338+ writeIORef toClearRootRef []
2339+ writeIORef coincidenceInfosRef []
2340+ writeIORef delayedRef IntMap.empty
2342+-- | Run an event action outside of a frame
2343+runFrame :: forall x a. HasSpiderTimeline x => EventM x a -> SpiderHost x a --TODO: This function also needs to hold the mutex
2344+runFrame a = SpiderHost $ do
2345+ let env = _spiderTimeline_eventEnv $ unSTE (spiderTimeline :: SpiderTimelineEnv x)
1705 let go = do
2346 let go = do
1706 result <- a
2347 result <- a
1707− runHoldInits holdInitRef mergeInitRef -- This must happen before doing the assignments, in case subscribing a Hold causes existing Holds to be read by the newly-propagated events
2348+ runHoldInits (eventEnvHoldInits env) (eventEnvDynInits env) (eventEnvMergeInits env) -- This must happen before doing the assignments, in case subscribing a Hold causes existing Holds to be read by the newly-propagated events
1708 return result
2349 return result
1709− result <- runEventM go env
2350+ result <- runEventM go
1710− toClear <- readIORef toClearRef
2351+ toClear <- readIORef $ eventEnvClears env
1711− forM_ toClear $ \(SomeClear ref) -> {-# SCC "clear" #-} writeIORef ref Nothing
2352+ forM_ toClear $ \(Some (Clear ref)) -> {-# SCC "clear" #-} writeIORef ref Nothing
1712− toClearRoot <- readIORef toClearRootRef
2353+ toClearInt <- readIORef $ eventEnvIntClears env
1713− forM_ toClearRoot $ \(SomeRootClear ref) -> {-# SCC "rootClear" #-} writeIORef ref $! DMap.empty
2354+ forM_ toClearInt $ \(Some (IntClear ref)) -> {-# SCC "intClear" #-} writeIORef ref $! IntMap.empty
1714− toAssign <- readIORef toAssignRef
2355+ toClearRoot <- readIORef $ eventEnvRootClears env
2356+ forM_ toClearRoot $ \(Some (RootClear ref)) -> {-# SCC "rootClear" #-} writeIORef ref $! DMap.empty
2357+ toAssign <- readIORef $ eventEnvAssignments env
1715 toReconnectRef <- newIORef []
2358 toReconnectRef <- newIORef []
1716− coincidenceInfos <- readIORef coincidenceInfosRef
2359+ coincidenceInfos <- readIORef $ eventEnvResetCoincidences env
1717 forM_ toAssign $ \(SomeAssignment vRef iRef v) -> {-# SCC "assignment" #-} do
2360 forM_ toAssign $ \(SomeAssignment vRef iRef v) -> {-# SCC "assignment" #-} do
1718 writeIORef vRef v
2361 writeIORef vRef v
1719− when debugInvalidate $ putStrLn $ "Invalidating Hold"
2362+ traceInvalidate $ "Invalidating Hold"
1720 writeIORef iRef =<< evaluate =<< invalidate toReconnectRef =<< readIORef iRef
2363 writeIORef iRef =<< evaluate =<< invalidate toReconnectRef =<< readIORef iRef
1721− mergeUpdates <- readIORef mergeUpdateRef
2364+ mergeUpdates <- readIORef $ eventEnvMergeUpdates env
1722− writeIORef mergeUpdateRef []
2365+ writeIORef (eventEnvMergeUpdates env) []
1723− let updateMerge :: SomeMergeUpdate x -> IO [EventSubscription x]
2366+ tracePropagate (Proxy::Proxy x) $ "Updating merges"
1724− updateMerge (SomeMergeUpdate (R.PatchDMap p :: R.PatchDMap k (Event x)) m) = do
2367+ mergeSubscriptionsToKill <- runEventM $ concat <$> mapM _someMergeUpdate_update mergeUpdates
1725− oldParents <- readIORef $ mergeSubscribedParents m
2368+ tracePropagate (Proxy::Proxy x) $ "Updating merges done"
1726− let f (subscriptionsToKill, ps) (k :=> R.ComposeMaybe me) = do
1727− (mOldSubd, newPs) <- case me of
1728− Nothing -> return $ DMap.updateLookupWithKey (\_ _ -> Nothing) k ps
1730− s <- liftIO $ newSubscriberMerge k m
1731− subscription@(EventSubscription _ subd) <- subscribe e s
1732− newParentHeight <- liftIO $ getEventSubscribedHeight subd
1733− let newParent = MergeSubscribedParent subscription s
1734− liftIO $ addMergeHeight newParentHeight m
1735− return $ DMap.insertLookupWithKey' (\_ new _ -> new) k newParent ps
1736− forM_ mOldSubd $ \oldSubd -> do
1737− oldHeight <- liftIO $ getEventSubscribedHeight $ _eventSubscription_subscribed $ mergeSubscribedParentSubscription oldSubd
1738− liftIO $ removeMergeHeight oldHeight m
1739− return (maybeToList (mergeSubscribedParentSubscription <$> mOldSubd) ++ subscriptionsToKill, newPs)
1740− (subscriptionsToKill, newParents) <- flip runEventM env $ foldM f ([], oldParents) $ DMap.toList p --TODO: I think this runEventM is OK, since no events are firing at this time, but it might not be
1741− writeIORef (mergeSubscribedParents m) $! newParents
1742− return subscriptionsToKill
1743− when debugPropagate $ putStrLn "Updating merges"
1744− mergeSubscriptionsToKill <- concat <$> mapM updateMerge mergeUpdates
1745− when debugPropagate $ putStrLn "Updating merges done"
1746 toReconnect <- readIORef toReconnectRef
2369 toReconnect <- readIORef toReconnectRef
1747 switchSubscriptionsToKill <- forM toReconnect $ \(SomeSwitchSubscribed subscribed) -> {-# SCC "switchSubscribed" #-} do
2371 switchSubscriptionsToKill <- forM toReconnect $ \(SomeSwitchSubscribed subscribed) -> {-# SCC "switchSubscribed" #-} do
1748 oldSubscription <- readIORef $ switchSubscribedCurrentParent subscribed
2372 oldSubscription <- readIORef $ switchSubscribedCurrentParent subscribed
1749 wi <- readIORef $ switchSubscribedOwnWeakInvalidator subscribed
2373 wi <- readIORef $ switchSubscribedOwnWeakInvalidator subscribed
1750− when debugInvalidate $ putStrLn $ "Finalizing invalidator for Switch" <> showNodeId subscribed
2374+ traceInvalidate $ "Finalizing invalidator for Switch" <> showNodeId subscribed
1751 finalize wi
2375 finalize wi
1752 i <- evaluate $ switchSubscribedOwnInvalidator subscribed
2376 i <- evaluate $ switchSubscribedOwnInvalidator subscribed
1753 wi' <- mkWeakPtrWithDebug i "wi'"
2377 wi' <- mkWeakPtrWithDebug i "wi'"
1754 writeIORef (switchSubscribedOwnWeakInvalidator subscribed) $! wi'
2378 writeIORef (switchSubscribedOwnWeakInvalidator subscribed) $! wi'
1755 writeIORef (switchSubscribedBehaviorParents subscribed) []
2379 writeIORef (switchSubscribedBehaviorParents subscribed) []
1756− writeIORef holdInitRef [] --TODO: Should we reuse this?
2380+ writeIORef (eventEnvHoldInits env) [] --TODO: Should we reuse this?
1757− e <- runBehaviorM (readBehaviorTracked (switchSubscribedParent subscribed)) (Just (wi', switchSubscribedBehaviorParents subscribed)) holdInitRef
2381+ e <- runBehaviorM (readBehaviorTracked (switchSubscribedParent subscribed)) (Just (wi', switchSubscribedBehaviorParents subscribed)) $ eventEnvHoldInits env
1758− runEventM (runHoldInits holdInitRef mergeInitRef) env --TODO: Is this actually OK? It seems like it should be, since we know that no events are firing at this point, but it still seems inelegant
2382+ runEventM $ runHoldInits (eventEnvHoldInits env) (eventEnvDynInits env) (eventEnvMergeInits env) --TODO: Is this actually OK? It seems like it should be, since we know that no events are firing at this point, but it still seems inelegant
1759 --TODO: Make sure we touch the pieces of the SwitchSubscribed at the appropriate times
2383 --TODO: Make sure we touch the pieces of the SwitchSubscribed at the appropriate times
1760 sub <- newSubscriberSwitch subscribed
2384 sub <- newSubscriberSwitch subscribed
1761− subscription <- runReaderT (unSpiderHost (runFrame ({-# SCC "subscribeSwitch" #-} subscribe e sub))) spiderTimeline --TODO: Assert that the event isn't firing --TODO: This should not loop because none of the events should be firing, but still, it is inefficient
2385+ subscription <- unSpiderHost $ runFrame $ {-# SCC "subscribeSwitch" #-} subscribe e sub --TODO: Assert that the event isn't firing --TODO: This should not loop because none of the events should be firing, but still, it is inefficient
1763 stackTrace <- liftIO $ fmap renderStack $ ccsToStrings =<< (getCCSOf $! switchSubscribedParent subscribed)
2387 stackTrace <- liftIO $ fmap renderStack $ ccsToStrings =<< (getCCSOf $! switchSubscribedParent subscribed)
1764− liftIO $ putStrLn $ (++stackTrace) $ "subd' subscribed to " ++ case e of
2388+ liftIO $ debugStrLn $ (++stackTrace) $ "subd' subscribed to " ++ case e of
1765 EventRoot _ -> "EventRoot"
2389 EventRoot _ -> "EventRoot"
1766 EventNever -> "EventNever"
2390 EventNever -> "EventNever"
1767 _ -> "something else"
2391 _ -> "something else"
@@ -1776,14 +2400,13 @@ runFrame a = SpiderHost $ ask >>= \spiderTimeline -> lift $ do
1776 myHeight <- readIORef $ switchSubscribedHeight subscribed
2400 myHeight <- readIORef $ switchSubscribedHeight subscribed
1777 when (parentHeight /= myHeight) $ do
2401 when (parentHeight /= myHeight) $ do
1778 writeIORef (switchSubscribedHeight subscribed) $! invalidHeight
2402 writeIORef (switchSubscribedHeight subscribed) $! invalidHeight
1779− WeakBag.traverse (switchSubscribedSubscribers subscribed) $ invalidateSubscriberHeight myHeight
2403+ WeakBag.traverse_ (switchSubscribedSubscribers subscribed) $ invalidateSubscriberHeight myHeight
1780− forM_ mergeUpdates $ \(SomeMergeUpdate _ m) -> do
2404+ mapM_ _someMergeUpdate_invalidateHeight mergeUpdates --TODO: In addition to when the patch is completely empty, we should also not run this if it has some Nothing values, but none of them have actually had any effect; potentially, we could even check for Just values with no effect (e.g. by comparing their IORefs and ignoring them if they are unchanged); actually, we could just check if the new height is different
1781− invalidateMergeHeight m --TODO: In addition to when the patch is completely empty, we should also not run this if it has some Nothing values, but none of them have actually had any effect; potentially, we could even check for Just values with no effect (e.g. by comparing their IORefs and ignoring them if they are unchanged); actually, we could just check if the new height is different
1782 forM_ coincidenceInfos $ \(SomeResetCoincidence subscription mcs) -> do
2405 forM_ coincidenceInfos $ \(SomeResetCoincidence subscription mcs) -> do
1783 unsubscribe subscription
2406 unsubscribe subscription
1784 mapM_ invalidateCoincidenceHeight mcs
2407 mapM_ invalidateCoincidenceHeight mcs
1785 forM_ coincidenceInfos $ \(SomeResetCoincidence _ mcs) -> mapM_ recalculateCoincidenceHeight mcs
2408 forM_ coincidenceInfos $ \(SomeResetCoincidence _ mcs) -> mapM_ recalculateCoincidenceHeight mcs
1786− forM_ mergeUpdates $ \(SomeMergeUpdate _ m) -> revalidateMergeHeight m
2409+ mapM_ _someMergeUpdate_recalculateHeight mergeUpdates
1787 forM_ toReconnect $ \(SomeSwitchSubscribed subscribed) -> do
2410 forM_ toReconnect $ \(SomeSwitchSubscribed subscribed) -> do
1788 height <- calculateSwitchHeight subscribed
2411 height <- calculateSwitchHeight subscribed
1789 updateSwitchHeight height subscribed
2412 updateSwitchHeight height subscribed
@@ -1813,50 +2436,12 @@ succHeight h@(Height a) =
1813 then invalidHeight
2436 then invalidHeight
1814 else Height $ succ a
2437 else Height $ succ a
1816−removeMergeHeight :: Height -> MergeSubscribed x k -> IO ()
1817−removeMergeHeight oldParentHeight subscribed = do
1818− when debugInvalidateHeight $ putStrLn $ "removeMergeHeight: " <> show oldParentHeight <> " Merge" <> showNodeId subscribed
1819− oldHeights <- readIORef $ mergeSubscribedHeightBag subscribed
1820− let newHeights = heightBagRemove oldParentHeight oldHeights
1821− writeIORef (mergeSubscribedHeightBag subscribed) $! newHeights
1823−invalidateMergeHeight :: MergeSubscribed x k -> IO ()
1824−invalidateMergeHeight subscribed = do
1825− oldHeight <- readIORef $ mergeSubscribedHeight subscribed
1826− -- If the height used to be valid, it must be invalid now; we should never have *more* heights than we have parents
1827− when (oldHeight /= invalidHeight) $ do
1828− writeIORef (mergeSubscribedHeight subscribed) $! invalidHeight
1829− WeakBag.traverse (mergeSubscribedSubscribers subscribed) $ invalidateSubscriberHeight oldHeight
1831−addMergeHeight :: Height -> MergeSubscribed x k -> IO ()
1832−addMergeHeight newParentHeight subscribed = do
1833− when debugInvalidateHeight $ putStrLn $ "addMergeHeight: " <> show newParentHeight <> " Merge" <> showNodeId subscribed
1834− oldHeights <- readIORef $ mergeSubscribedHeightBag subscribed
1835− let newHeights = heightBagAdd newParentHeight oldHeights
1836− writeIORef (mergeSubscribedHeightBag subscribed) $! newHeights
1838−revalidateMergeHeight :: MergeSubscribed x k -> IO ()
1839−revalidateMergeHeight subscribed = do
1840− currentHeight <- readIORef $ mergeSubscribedHeight subscribed
1841− when (currentHeight == invalidHeight) $ do -- revalidateMergeHeight may be called multiple times; perhaps the's a way to finesse it to avoid this check
1842− heights <- readIORef $ mergeSubscribedHeightBag subscribed
1843− parents <- readIORef $ mergeSubscribedParents subscribed
1844− -- When the number of heights in the bag reaches the number of parents, we should have a valid height
1845− case heightBagSize heights `compare` DMap.size parents of
1848− let height = succHeight $ heightBagMax heights
1849− when debugInvalidateHeight $ putStrLn $ "recalculateSubscriberHeight: height: " <> show height
1850− writeIORef (mergeSubscribedHeight subscribed) $! height
1851− WeakBag.traverse (mergeSubscribedSubscribers subscribed) $ recalculateSubscriberHeight height
1852− GT -> error $ "revalidateMergeHeight: more heights than parents for Merge" <> showNodeId subscribed
1854invalidateCoincidenceHeight :: CoincidenceSubscribed x a -> IO ()
2439invalidateCoincidenceHeight :: CoincidenceSubscribed x a -> IO ()
1855invalidateCoincidenceHeight subscribed = do
2440invalidateCoincidenceHeight subscribed = do
1856 oldHeight <- readIORef $ coincidenceSubscribedHeight subscribed
2441 oldHeight <- readIORef $ coincidenceSubscribedHeight subscribed
1857 when (oldHeight /= invalidHeight) $ do
2442 when (oldHeight /= invalidHeight) $ do
1858 writeIORef (coincidenceSubscribedHeight subscribed) $! invalidHeight
2443 writeIORef (coincidenceSubscribedHeight subscribed) $! invalidHeight
1859− WeakBag.traverse (coincidenceSubscribedSubscribers subscribed) $ invalidateSubscriberHeight oldHeight
2444+ WeakBag.traverse_ (coincidenceSubscribedSubscribers subscribed) $ invalidateSubscriberHeight oldHeight
1861updateSwitchHeight :: Height -> SwitchSubscribed x a -> IO ()
2446updateSwitchHeight :: Height -> SwitchSubscribed x a -> IO ()
1862updateSwitchHeight new subscribed = do
2447updateSwitchHeight new subscribed = do
@@ -1864,7 +2449,7 @@ updateSwitchHeight new subscribed = do
1864 when (oldHeight == invalidHeight) $ do --TODO: This 'when' should probably be an assertion
2449 when (oldHeight == invalidHeight) $ do --TODO: This 'when' should probably be an assertion
1865 when (new /= invalidHeight) $ do --TODO: This 'when' should probably be an assertion
2450 when (new /= invalidHeight) $ do --TODO: This 'when' should probably be an assertion
1866 writeIORef (switchSubscribedHeight subscribed) $! new
2451 writeIORef (switchSubscribedHeight subscribed) $! new
1867− WeakBag.traverse (switchSubscribedSubscribers subscribed) $ recalculateSubscriberHeight new
2452+ WeakBag.traverse_ (switchSubscribedSubscribers subscribed) $ recalculateSubscriberHeight new
1869recalculateCoincidenceHeight :: CoincidenceSubscribed x a -> IO ()
2454recalculateCoincidenceHeight :: CoincidenceSubscribed x a -> IO ()
1870recalculateCoincidenceHeight subscribed = do
2455recalculateCoincidenceHeight subscribed = do
@@ -1873,7 +2458,7 @@ recalculateCoincidenceHeight subscribed = do
1873 height <- calculateCoincidenceHeight subscribed
2458 height <- calculateCoincidenceHeight subscribed
1874 when (height /= invalidHeight) $ do
2459 when (height /= invalidHeight) $ do
1875 writeIORef (coincidenceSubscribedHeight subscribed) $! height
2460 writeIORef (coincidenceSubscribedHeight subscribed) $! height
1876− WeakBag.traverse (coincidenceSubscribedSubscribers subscribed) $ recalculateSubscriberHeight height
2461+ WeakBag.traverse_ (coincidenceSubscribedSubscribers subscribed) $ recalculateSubscriberHeight height
1878calculateSwitchHeight :: SwitchSubscribed x a -> IO Height
2463calculateSwitchHeight :: SwitchSubscribed x a -> IO Height
1879calculateSwitchHeight subscribed = getEventSubscribedHeight . _eventSubscription_subscribed =<< readIORef (switchSubscribedCurrentParent subscribed)
2464calculateSwitchHeight subscribed = getEventSubscribedHeight . _eventSubscription_subscribed =<< readIORef (switchSubscribedCurrentParent subscribed)
@@ -1912,183 +2497,170 @@ invalidate toReconnectRef wis = do
1912-- Reflex integration
2497-- Reflex integration
1913--------------------------------------------------------------------------------
2498--------------------------------------------------------------------------------
1915−-- | The default, global Spider environment
1916−type Spider = SpiderTimeline Global
1918-- | Designates the default, global Spider timeline
2500-- | Designates the default, global Spider timeline
1919−data Global
2501+data SpiderTimeline x
1921−{-# NOINLINE globalSpiderTimeline #-}
1922−globalSpiderTimeline :: SpiderTimeline Global
1923−globalSpiderTimeline = unsafePerformIO unsafeNewSpiderTimeline
1925−-- | Stores all global data relevant to a particular Spider timeline; only one
1926−-- value should exist for each type @x@
1927−data SpiderTimeline x = SpiderTimeline
1928− { _spiderTimeline_toUnsubscribe :: !(IORef [EventSubscription x])
1929− , _spiderTimeline_lock :: !(MVar ())
1930− , _spiderTimeline_cleanups :: !(IORef [IO ()])
1932− , _spiderTimeline_depth :: !(IORef Int)
1935type role SpiderTimeline nominal
2502type role SpiderTimeline nominal
1937−instance GEq SpiderTimeline where
2504+-- | The default, global Spider environment
1938− a `geq` b = if _spiderTimeline_lock a == _spiderTimeline_lock b
2505+type Spider = SpiderTimeline Global
1939− then Just $ unsafeCoerce Refl -- This unsafeCoerce is safe because the same SpiderTimeline can't have two different 'x' arguments
1942−unsafeNewSpiderTimeline :: forall x. IO (SpiderTimeline x)
1943−unsafeNewSpiderTimeline = do
1944− toUnsubscribe <- newIORef []
1946− cleanups <- newIORef []
1948− depthRef <- newIORef 0
1950− return $ SpiderTimeline
1951− { _spiderTimeline_toUnsubscribe = toUnsubscribe
1952− , _spiderTimeline_lock = lock
1953− , _spiderTimeline_cleanups = cleanups
1955− , _spiderTimeline_depth = depthRef
1959−-- | Create a new SpiderTimeline
1960−newSpiderTimeline :: IO (Some SpiderTimeline)
1961−newSpiderTimeline = withSpiderTimeline (pure . Some.This)
1963−-- | Pass a new timeline to the given function.
2507+instance HasSpiderTimeline x => Reflex.Class.MonadSample (SpiderTimeline x) (EventM x) where
1964−withSpiderTimeline :: (forall x. SpiderTimeline x -> IO r) -> IO r
2508+ {-# INLINABLE sample #-}
1965−withSpiderTimeline k = unsafeNewSpiderTimeline >>= k
2509+ sample (SpiderBehavior b) = readBehaviorUntracked b
1967−newtype SpiderPullM x a = SpiderPullM (BehaviorM x a) deriving (Functor, Applicative, Monad, MonadIO, MonadFix)
2511+instance HasSpiderTimeline x => Reflex.Class.MonadHold (SpiderTimeline x) (EventM x) where
2512+ {-# INLINABLE hold #-}
2513+ hold = holdSpiderEventM
2514+ {-# INLINABLE holdDyn #-}
2515+ holdDyn = holdDynSpiderEventM
2516+ {-# INLINABLE holdIncremental #-}
2517+ holdIncremental = holdIncrementalSpiderEventM
2518+ {-# INLINABLE buildDynamic #-}
2519+ buildDynamic = buildDynamicSpiderEventM
2520+ {-# INLINABLE headE #-}
2521+ headE = R.slowHeadE
2522+-- headE (SpiderEvent e) = SpiderEvent <$> Reflex.Spider.Internal.headE e
2523+ {-# INLINABLE now #-}
2524+ now = nowSpiderEventM
2526+instance Reflex.Class.MonadSample (SpiderTimeline x) (SpiderPullM x) where
2527+ {-# INLINABLE sample #-}
2528+ sample = coerce . readBehaviorTracked . unSpiderBehavior
1969−newtype SpiderPushM x a = SpiderPushM (ComputeM x a) deriving (Functor, Applicative, Monad, MonadIO, MonadFix)
2530+instance HasSpiderTimeline x => Reflex.Class.MonadSample (SpiderTimeline x) (SpiderPushM x) where
2531+ {-# INLINABLE sample #-}
2532+ sample (SpiderBehavior b) = SpiderPushM $ readBehaviorUntracked b
1971−instance Functor (R.Dynamic (SpiderTimeline x)) where
2534+instance HasSpiderTimeline x => Reflex.Class.MonadHold (SpiderTimeline x) (SpiderPushM x) where
1972− fmap f = SpiderDynamic . newMapDyn f . unSpiderDynamic
2535+ {-# INLINABLE hold #-}
2536+ hold v0 e = Reflex.Class.current <$> Reflex.Class.holdDyn v0 e
2537+ {-# INLINABLE holdDyn #-}
2538+ holdDyn v0 (SpiderEvent e) = SpiderPushM $ fmap (SpiderDynamic . dynamicHoldIdentity) $ Reflex.Spider.Internal.hold v0 $ coerce e
2539+ {-# INLINABLE holdIncremental #-}
2540+ holdIncremental v0 (SpiderEvent e) = SpiderPushM $ SpiderIncremental . dynamicHold <$> Reflex.Spider.Internal.hold v0 e
2541+ {-# INLINABLE buildDynamic #-}
2542+ buildDynamic getV0 (SpiderEvent e) = SpiderPushM $ fmap (SpiderDynamic . dynamicDynIdentity) $ Reflex.Spider.Internal.buildDynamic (coerce getV0) $ coerce e
2543+ {-# INLINABLE headE #-}
2544+ headE = R.slowHeadE
2545+-- headE (SpiderEvent e) = SpiderPushM $ SpiderEvent <$> Reflex.Spider.Internal.headE e
2546+ {-# INLINABLE now #-}
2547+ now = SpiderPushM nowSpiderEventM
1974−instance Applicative (R.Dynamic (SpiderTimeline x)) where
1975− pure = SpiderDynamic . dynamicConst
1976− SpiderDynamic a <*> SpiderDynamic b = SpiderDynamic $ zipDynWith ($) a b
1980−instance Monad (R.Dynamic (SpiderTimeline x)) where
2550+instance HasSpiderTimeline x => Monad (Reflex.Class.Dynamic (SpiderTimeline x)) where
1981 {-# INLINE return #-}
2551 {-# INLINE return #-}
1982 return = pure
2552 return = pure
1983 {-# INLINE (>>=) #-}
2553 {-# INLINE (>>=) #-}
1984 x >>= f = SpiderDynamic $ dynamicDynIdentity $ newJoinDyn $ newMapDyn (unSpiderDynamic . f) $ unSpiderDynamic x
2554 x >>= f = SpiderDynamic $ dynamicDynIdentity $ newJoinDyn $ newMapDyn (unSpiderDynamic . f) $ unSpiderDynamic x
1985 {-# INLINE (>>) #-}
2555 {-# INLINE (>>) #-}
1986− _ >> y = y
2556+ (>>) = (*>)
2557+#if !MIN_VERSION_base(4,13,0)
1987 {-# INLINE fail #-}
2558 {-# INLINE fail #-}
1988 fail _ = error "Dynamic does not support 'fail'"
2559 fail _ = error "Dynamic does not support 'fail'"
1990−instance R.Reflex (SpiderTimeline x) where
2562+{-# INLINABLE newJoinDyn #-}
1991− newtype Behavior (SpiderTimeline x) a = SpiderBehavior { unSpiderBehavior :: Behavior x a }
2563+newJoinDyn :: HasSpiderTimeline x => DynamicS x (Identity (DynamicS x (Identity a))) -> Reflex.Spider.Internal.Dyn x (Identity a)
1992− newtype Event (SpiderTimeline x) a = SpiderEvent { unSpiderEvent :: Event x a }
2564+newJoinDyn d =
1993− newtype Dynamic (SpiderTimeline x) a = SpiderDynamic { unSpiderDynamic :: Dynamic x (Identity a) } -- deriving (Functor, Applicative, Monad)
2565+ let readV0 = readBehaviorTracked . dynamicCurrent =<< readBehaviorTracked (dynamicCurrent d)
1994− newtype Incremental (SpiderTimeline x) p = SpiderIncremental { unSpiderIncremental :: Dynamic x p }
2566+ eOuter = Reflex.Spider.Internal.push (fmap (Just . Identity) . readBehaviorUntracked . dynamicCurrent . runIdentity) $ dynamicUpdated d
1995− type PullM (SpiderTimeline x) = SpiderPullM x
2567+ eInner = Reflex.Spider.Internal.switch $ dynamicUpdated <$> dynamicCurrent d
1996− type PushM (SpiderTimeline x) = SpiderPushM x
2568+ eBoth = Reflex.Spider.Internal.coincidence $ dynamicUpdated . runIdentity <$> dynamicUpdated d
1997− {-# INLINABLE never #-}
2569+ v' = unSpiderEvent $ Reflex.Class.leftmost $ map SpiderEvent [eBoth, eOuter, eInner]
1998− never = SpiderEvent eventNever
2570+ in Reflex.Spider.Internal.unsafeBuildDynamic readV0 v'
1999− {-# INLINABLE constant #-}
2000− constant = SpiderBehavior . behaviorConst
2001− {-# INLINABLE push #-}
2002− push f = SpiderEvent . push (coerce f) . unSpiderEvent
2003− {-# INLINABLE pull #-}
2004− pull = SpiderBehavior . pull . coerce
2005− {-# INLINABLE merge #-}
2006− merge = SpiderEvent . merge . dynamicConst . (coerce :: DMap k (R.Event (SpiderTimeline x)) -> DMap k (Event x))
2007− {-# INLINABLE fan #-}
2008− fan e = R.EventSelector $ SpiderEvent . select (fan (unSpiderEvent e))
2009− {-# INLINABLE switch #-}
2010− switch = SpiderEvent . switch . (coerce :: Behavior x (R.Event (SpiderTimeline x) a) -> Behavior x (Event x a)) . unSpiderBehavior
2011− {-# INLINABLE coincidence #-}
2012− coincidence = SpiderEvent . coincidence . (coerce :: Event x (R.Event (SpiderTimeline x) a) -> Event x (Event x a)) . unSpiderEvent
2013− {-# INLINABLE current #-}
2014− current = SpiderBehavior . dynamicCurrent . unSpiderDynamic
2015− {-# INLINABLE updated #-}
2016− updated = SpiderEvent . fmap runIdentity . dynamicUpdated . unSpiderDynamic
2017− {-# INLINABLE unsafeBuildDynamic #-}
2018− unsafeBuildDynamic readV0 v' = SpiderDynamic $ dynamicDynIdentity $ unsafeDyn (coerce readV0) $ coerce $ unSpiderEvent v'
2019− {-# INLINABLE unsafeBuildIncremental #-}
2020− unsafeBuildIncremental readV0 dv = SpiderIncremental $ dynamicDyn $ unsafeDyn (coerce readV0) $ unSpiderEvent dv
2021− {-# INLINABLE mergeIncremental #-}
2022− mergeIncremental = SpiderEvent . merge . (unsafeCoerce :: Dynamic x (R.PatchDMap k (R.Event (SpiderTimeline x))) -> Dynamic x (R.PatchDMap k (Event x))) . unSpiderIncremental
2023− {-# INLINABLE currentIncremental #-}
2024− currentIncremental = SpiderBehavior . dynamicCurrent . unSpiderIncremental
2025− {-# INLINABLE updatedIncremental #-}
2026− updatedIncremental = SpiderEvent . dynamicUpdated . unSpiderIncremental
2027− {-# INLINABLE incrementalToDynamic #-}
2028− incrementalToDynamic (SpiderIncremental i) = SpiderDynamic $ dynamicDynIdentity $ unsafeDyn (readBehaviorUntracked $ dynamicCurrent i) $ flip push (dynamicUpdated i) $ \p -> do
2029− c <- readBehaviorUntracked $ dynamicCurrent i
2030− return $ Identity <$> R.apply p c --TODO: Avoid the redundant 'apply'
2031− eventCoercion Coercion = Coercion
2032− behaviorCoercion Coercion = Coercion
2033− dynamicCoercion = unsafeCoerce --TODO: How can we avoid this unsafeCoerce? This is safe only because we know how Identity works as a Patch instance
2035−instance R.MonadSample (SpiderTimeline x) (EventM x) where
2572+instance HasSpiderTimeline x => Functor (Reflex.Class.Dynamic (SpiderTimeline x)) where
2036− {-# INLINABLE sample #-}
2573+ fmap = mapDynamicSpider
2037− sample (SpiderBehavior b) = readBehaviorUntracked b
2574+ x <$ d = R.unsafeBuildDynamic (return x) $ x <$ R.updated d
2039−instance R.MonadHold (SpiderTimeline x) (EventM x) where
2576+mapDynamicSpider :: HasSpiderTimeline x => (a -> b) -> Reflex.Class.Dynamic (SpiderTimeline x) a -> Reflex.Class.Dynamic (SpiderTimeline x) b
2040− {-# INLINABLE hold #-}
2577+mapDynamicSpider f = SpiderDynamic . newMapDyn f . unSpiderDynamic
2041− hold = holdSpiderEventM
2578+{-# INLINE [1] mapDynamicSpider #-}
2042− {-# INLINABLE holdDyn #-}
2579+
2043− holdDyn = holdDynSpiderEventM
2580+instance HasSpiderTimeline x => Applicative (Reflex.Class.Dynamic (SpiderTimeline x)) where
2044− {-# INLINABLE holdIncremental #-}
2581+ pure = SpiderDynamic . dynamicConst
2045− holdIncremental = holdIncrementalSpiderEventM
2582+#if MIN_VERSION_base(4,10,0)
2583+ liftA2 f a b = SpiderDynamic $ Reflex.Spider.Internal.zipDynWith f (unSpiderDynamic a) (unSpiderDynamic b)
2585+ SpiderDynamic a <*> SpiderDynamic b = SpiderDynamic $ Reflex.Spider.Internal.zipDynWith ($) a b
2586+ a *> b = R.unsafeBuildDynamic (R.sample $ R.current b) $ R.leftmost [R.updated b, R.tag (R.current b) $ R.updated a]
2587+ (<*) = flip (*>) -- There are no effects, so order doesn't matter
2589+holdSpiderEventM :: HasSpiderTimeline x => a -> Reflex.Class.Event (SpiderTimeline x) a -> EventM x (Reflex.Class.Behavior (SpiderTimeline x) a)
2590+holdSpiderEventM v0 e = fmap (SpiderBehavior . behaviorHoldIdentity) $ Reflex.Spider.Internal.hold v0 $ coerce $ unSpiderEvent e
2047−holdSpiderEventM :: a -> R.Event (SpiderTimeline x) a -> EventM x (R.Behavior (SpiderTimeline x) a)
2592+holdDynSpiderEventM :: HasSpiderTimeline x => a -> Reflex.Class.Event (SpiderTimeline x) a -> EventM x (Reflex.Class.Dynamic (SpiderTimeline x) a)
2048−holdSpiderEventM v0 e = fmap (SpiderBehavior . behaviorHoldIdentity) $ hold v0 $ coerce $ unSpiderEvent e
2593+holdDynSpiderEventM v0 e = fmap (SpiderDynamic . dynamicHoldIdentity) $ Reflex.Spider.Internal.hold v0 $ coerce $ unSpiderEvent e
2050−holdDynSpiderEventM :: a -> R.Event (SpiderTimeline x) a -> EventM x (R.Dynamic (SpiderTimeline x) a)
2595+holdIncrementalSpiderEventM :: (HasSpiderTimeline x, Patch p) => PatchTarget p -> Reflex.Class.Event (SpiderTimeline x) p -> EventM x (Reflex.Class.Incremental (SpiderTimeline x) p)
2051−holdDynSpiderEventM v0 e = fmap (SpiderDynamic . dynamicHoldIdentity) $ hold v0 $ coerce $ unSpiderEvent e
2596+holdIncrementalSpiderEventM v0 e = fmap (SpiderIncremental . dynamicHold) $ Reflex.Spider.Internal.hold v0 $ unSpiderEvent e
2053−holdIncrementalSpiderEventM :: R.Patch p => R.PatchTarget p -> R.Event (SpiderTimeline x) p -> EventM x (R.Incremental (SpiderTimeline x) p)
2598+buildDynamicSpiderEventM :: HasSpiderTimeline x => SpiderPushM x a -> Reflex.Class.Event (SpiderTimeline x) a -> EventM x (Reflex.Class.Dynamic (SpiderTimeline x) a)
2054−holdIncrementalSpiderEventM v0 e = fmap (SpiderIncremental . dynamicHold) $ hold v0 $ unSpiderEvent e
2599+buildDynamicSpiderEventM getV0 e = fmap (SpiderDynamic . dynamicDynIdentity) $ Reflex.Spider.Internal.buildDynamic (coerce getV0) $ coerce $ unSpiderEvent e
2056−instance R.MonadHold (SpiderTimeline x) (SpiderHost x) where
2601+instance HasSpiderTimeline x => Reflex.Class.MonadHold (SpiderTimeline x) (SpiderHost x) where
2057 {-# INLINABLE hold #-}
2602 {-# INLINABLE hold #-}
2058− hold v0 e = R.runHostFrame $ R.hold v0 e
2603+ hold v0 e = runFrame . runSpiderHostFrame $ Reflex.Class.hold v0 e
2059 {-# INLINABLE holdDyn #-}
2604 {-# INLINABLE holdDyn #-}
2060− holdDyn v0 e = R.runHostFrame $ R.holdDyn v0 e
2605+ holdDyn v0 e = runFrame . runSpiderHostFrame $ Reflex.Class.holdDyn v0 e
2061 {-# INLINABLE holdIncremental #-}
2606 {-# INLINABLE holdIncremental #-}
2062− holdIncremental v0 e = R.runHostFrame $ R.holdIncremental v0 e
2607+ holdIncremental v0 e = runFrame . runSpiderHostFrame $ Reflex.Class.holdIncremental v0 e
2608+ {-# INLINABLE buildDynamic #-}
2609+ buildDynamic getV0 e = runFrame . runSpiderHostFrame $ Reflex.Class.buildDynamic getV0 e
2610+ {-# INLINABLE headE #-}
2611+ headE e = runFrame . runSpiderHostFrame $ Reflex.Class.headE e
2612+ {-# INLINABLE now #-}
2613+ now = runFrame . runSpiderHostFrame $ Reflex.Class.now
2616+instance HasSpiderTimeline x => Reflex.Class.MonadSample (SpiderTimeline x) (SpiderHostFrame x) where
2617+ sample = SpiderHostFrame . readBehaviorUntracked . unSpiderBehavior --TODO: This can cause problems with laziness, so we should get rid of it if we can
2064−instance R.MonadSample (SpiderTimeline x) (SpiderHost x) where
2619+instance HasSpiderTimeline x => Reflex.Class.MonadHold (SpiderTimeline x) (SpiderHostFrame x) where
2620+ {-# INLINABLE hold #-}
2621+ hold v0 e = SpiderHostFrame $ fmap (SpiderBehavior . behaviorHoldIdentity) $ Reflex.Spider.Internal.hold v0 $ coerce $ unSpiderEvent e
2622+ {-# INLINABLE holdDyn #-}
2623+ holdDyn v0 e = SpiderHostFrame $ fmap (SpiderDynamic . dynamicHoldIdentity) $ Reflex.Spider.Internal.hold v0 $ coerce $ unSpiderEvent e
2624+ {-# INLINABLE holdIncremental #-}
2625+ holdIncremental v0 e = SpiderHostFrame $ fmap (SpiderIncremental . dynamicHold) $ Reflex.Spider.Internal.hold v0 $ unSpiderEvent e
2626+ {-# INLINABLE buildDynamic #-}
2627+ buildDynamic getV0 e = SpiderHostFrame $ fmap (SpiderDynamic . dynamicDynIdentity) $ Reflex.Spider.Internal.buildDynamic (coerce getV0) $ coerce $ unSpiderEvent e
2628+ {-# INLINABLE headE #-}
2629+ headE = R.slowHeadE
2630+-- headE (SpiderEvent e) = SpiderHostFrame $ SpiderEvent <$> Reflex.Spider.Internal.headE e
2631+ {-# INLINABLE now #-}
2632+ now = SpiderHostFrame Reflex.Class.now
2634+instance HasSpiderTimeline x => Reflex.Class.MonadSample (SpiderTimeline x) (SpiderHost x) where
2065 {-# INLINABLE sample #-}
2635 {-# INLINABLE sample #-}
2066 sample = runFrame . readBehaviorUntracked . unSpiderBehavior
2636 sample = runFrame . readBehaviorUntracked . unSpiderBehavior
2068−instance R.MonadSample (SpiderTimeline x) (SpiderPullM x) where
2638+instance HasSpiderTimeline x => Reflex.Class.MonadSample (SpiderTimeline x) (Reflex.Spider.Internal.ReadPhase x) where
2069 {-# INLINABLE sample #-}
2639 {-# INLINABLE sample #-}
2070− sample = coerce . readBehaviorTracked . unSpiderBehavior
2640+ sample = Reflex.Spider.Internal.ReadPhase . Reflex.Class.sample
2072−instance R.MonadSample (SpiderTimeline x) (SpiderPushM x) where
2073− {-# INLINABLE sample #-}
2074− sample (SpiderBehavior b) = SpiderPushM $ readBehaviorUntracked b
2076−instance R.MonadHold (SpiderTimeline x) (SpiderPushM x) where
2642+instance HasSpiderTimeline x => Reflex.Class.MonadHold (SpiderTimeline x) (Reflex.Spider.Internal.ReadPhase x) where
2077 {-# INLINABLE hold #-}
2643 {-# INLINABLE hold #-}
2078− hold v0 e = R.current <$> R.holdDyn v0 e
2644+ hold v0 e = Reflex.Spider.Internal.ReadPhase $ Reflex.Class.hold v0 e
2079 {-# INLINABLE holdDyn #-}
2645 {-# INLINABLE holdDyn #-}
2080− holdDyn v0 (SpiderEvent e) = SpiderPushM $ fmap (SpiderDynamic . dynamicHoldIdentity) $ hold v0 $ coerce e
2646+ holdDyn v0 e = Reflex.Spider.Internal.ReadPhase $ Reflex.Class.holdDyn v0 e
2081 {-# INLINABLE holdIncremental #-}
2647 {-# INLINABLE holdIncremental #-}
2082− holdIncremental v0 (SpiderEvent e) = SpiderPushM $ SpiderIncremental . dynamicHold <$> hold v0 e
2648+ holdIncremental v0 e = Reflex.Spider.Internal.ReadPhase $ Reflex.Class.holdIncremental v0 e
2649+ {-# INLINABLE buildDynamic #-}
2650+ buildDynamic getV0 e = Reflex.Spider.Internal.ReadPhase $ Reflex.Class.buildDynamic getV0 e
2651+ {-# INLINABLE headE #-}
2652+ headE e = Reflex.Spider.Internal.ReadPhase $ Reflex.Class.headE e
2653+ {-# INLINABLE now #-}
2654+ now = Reflex.Spider.Internal.ReadPhase Reflex.Class.now
2084−data RootTrigger x a = forall k. GCompare k => RootTrigger (WeakBag (Subscriber x a), IORef (DMap k Identity), k a)
2656+--------------------------------------------------------------------------------
2085−
2657+-- Deprecated items
2086−data SpiderEventHandle x a = SpiderEventHandle
2658+--------------------------------------------------------------------------------
2087− { spiderEventHandleSubscription :: EventSubscription x
2088− , spiderEventHandleValue :: IORef (Maybe a)
2091−instance R.MonadSubscribeEvent (SpiderTimeline x) (SpiderHostFrame x) where
2660+-- | 'SpiderEnv' is the old name for 'SpiderTimeline'
2661+{-# DEPRECATED SpiderEnv "Use 'SpiderTimelineEnv' instead" #-}
2662+type SpiderEnv = SpiderTimeline
2663+instance HasSpiderTimeline x => Reflex.Host.Class.MonadSubscribeEvent (SpiderTimeline x) (SpiderHostFrame x) where
2092 {-# INLINABLE subscribeEvent #-}
2664 {-# INLINABLE subscribeEvent #-}
2093 subscribeEvent e = SpiderHostFrame $ do
2665 subscribeEvent e = SpiderHostFrame $ do
2094 --TODO: Unsubscribe eventually (manually and/or with weak ref)
2666 --TODO: Unsubscribe eventually (manually and/or with weak ref)
@@ -2105,18 +2677,149 @@ instance R.MonadSubscribeEvent (SpiderTimeline x) (SpiderHostFrame x) where
2105 , spiderEventHandleValue = val
2677 , spiderEventHandleValue = val
2108−instance R.ReflexHost (SpiderTimeline x) where
2680+instance HasSpiderTimeline x => Reflex.Host.Class.ReflexHost (SpiderTimeline x) where
2109 type EventTrigger (SpiderTimeline x) = RootTrigger x
2681 type EventTrigger (SpiderTimeline x) = RootTrigger x
2110 type EventHandle (SpiderTimeline x) = SpiderEventHandle x
2682 type EventHandle (SpiderTimeline x) = SpiderEventHandle x
2111 type HostFrame (SpiderTimeline x) = SpiderHostFrame x
2683 type HostFrame (SpiderTimeline x) = SpiderHostFrame x
2113−instance R.MonadReadEvent (SpiderTimeline x) (ReadPhase x) where
2685+instance HasSpiderTimeline x => Reflex.Host.Class.MonadReadEvent (SpiderTimeline x) (Reflex.Spider.Internal.ReadPhase x) where
2114 {-# NOINLINE readEvent #-}
2686 {-# NOINLINE readEvent #-}
2115− readEvent h = ReadPhase $ fmap (fmap return) $ liftIO $ do
2687+ readEvent h = Reflex.Spider.Internal.ReadPhase $ fmap (fmap return) $ liftIO $ do
2116 result <- readIORef $ spiderEventHandleValue h
2688 result <- readIORef $ spiderEventHandleValue h
2118 return result
2690 return result
2692+instance HasSpiderTimeline x => Reflex.Host.Class.MonadReflexCreateTrigger (SpiderTimeline x) (SpiderHost x) where
2693+ newEventWithTrigger = SpiderHost . fmap SpiderEvent . newEventWithTriggerIO
2694+ newFanEventWithTrigger f = SpiderHost $ do
2695+ es <- newFanEventWithTriggerIO f
2696+ return $ Reflex.Class.EventSelector $ SpiderEvent . Reflex.Spider.Internal.select es
2698+instance HasSpiderTimeline x => Reflex.Host.Class.MonadReflexCreateTrigger (SpiderTimeline x) (SpiderHostFrame x) where
2699+ newEventWithTrigger = SpiderHostFrame . EventM . liftIO . fmap SpiderEvent . newEventWithTriggerIO
2700+ newFanEventWithTrigger f = SpiderHostFrame $ EventM $ liftIO $ do
2701+ es <- newFanEventWithTriggerIO f
2702+ return $ Reflex.Class.EventSelector $ SpiderEvent . Reflex.Spider.Internal.select es
2704+instance HasSpiderTimeline x => Reflex.Host.Class.MonadSubscribeEvent (SpiderTimeline x) (SpiderHost x) where
2705+ {-# INLINABLE subscribeEvent #-}
2706+ subscribeEvent = runFrame . runSpiderHostFrame . Reflex.Host.Class.subscribeEvent
2708+instance HasSpiderTimeline x => Reflex.Host.Class.MonadReflexHost (SpiderTimeline x) (SpiderHost x) where
2709+ type ReadPhase (SpiderHost x) = Reflex.Spider.Internal.ReadPhase x
2710+ fireEventsAndRead es (Reflex.Spider.Internal.ReadPhase a) = run es a
2711+ runHostFrame = runFrame . runSpiderHostFrame
2713+unsafeNewSpiderTimelineEnv :: forall x. IO (SpiderTimelineEnv x)
2714+unsafeNewSpiderTimelineEnv = do
2718+ depthRef <- newIORef 0
2720+ return $ STE $ SpiderTimelineEnv
2721+ { _spiderTimeline_lock = lock
2722+ , _spiderTimeline_eventEnv = env
2724+ , _spiderTimeline_depth = depthRef
2728+-- | Create a new SpiderTimelineEnv
2729+newSpiderTimeline :: IO (Some SpiderTimelineEnv)
2730+newSpiderTimeline = withSpiderTimeline (pure . Some)
2732+data LocalSpiderTimeline (x :: Type) s
2734+instance Reifies s (SpiderTimelineEnv x) =>
2735+ HasSpiderTimeline (LocalSpiderTimeline x s) where
2736+ spiderTimeline = localSpiderTimeline Proxy $ reflect (Proxy :: Proxy s)
2740+ -> SpiderTimelineEnv x
2741+ -> SpiderTimelineEnv (LocalSpiderTimeline x s)
2742+localSpiderTimeline _ = coerce
2744+-- | Pass a new timeline to the given function.
2745+withSpiderTimeline :: (forall x. HasSpiderTimeline x => SpiderTimelineEnv x -> IO r) -> IO r
2746+withSpiderTimeline k = do
2747+ env <- unsafeNewSpiderTimelineEnv
2748+ reify env $ \s -> k $ localSpiderTimeline s env
2750+newtype SpiderPullM (x :: Type) a = SpiderPullM (BehaviorM x a) deriving (Functor, Applicative, Monad, MonadIO, MonadFix)
2752+type ComputeM = EventM
2754+newtype SpiderPushM (x :: Type) a = SpiderPushM (ComputeM x a) deriving (Functor, Applicative, Monad, MonadIO, MonadFix)
2756+instance HasSpiderTimeline x => R.Reflex (SpiderTimeline x) where
2757+ {-# SPECIALIZE instance R.Reflex (SpiderTimeline Global) #-}
2758+ newtype Behavior (SpiderTimeline x) a = SpiderBehavior { unSpiderBehavior :: Behavior x a }
2759+ newtype Event (SpiderTimeline x) a = SpiderEvent { unSpiderEvent :: Event x a }
2760+ newtype Dynamic (SpiderTimeline x) a = SpiderDynamic { unSpiderDynamic :: DynamicS x (Identity a) } -- deriving (Functor, Applicative, Monad)
2761+ newtype Incremental (SpiderTimeline x) p = SpiderIncremental { unSpiderIncremental :: DynamicS x p }
2762+ type PullM (SpiderTimeline x) = SpiderPullM x
2763+ type PushM (SpiderTimeline x) = SpiderPushM x
2764+ {-# INLINABLE never #-}
2765+ never = SpiderEvent eventNever
2766+ {-# INLINABLE constant #-}
2767+ constant = SpiderBehavior . behaviorConst
2768+ {-# INLINE push #-}
2769+ push f = SpiderEvent . push (coerce f) . unSpiderEvent
2770+ {-# INLINE pushCheap #-}
2771+ pushCheap f = SpiderEvent . pushCheap (coerce f) . unSpiderEvent
2772+ {-# INLINABLE pull #-}
2773+ pull = SpiderBehavior . pull . coerce
2774+ {-# INLINABLE fanG #-}
2775+ fanG e = R.EventSelectorG $ SpiderEvent . selectG (fanG (unSpiderEvent e))
2776+ {-# INLINABLE mergeG #-}
2778+ :: forall k2 (k :: k2 -> *) q (v :: k2 -> *). GCompare k
2779+ => (forall a. q a -> R.Event (SpiderTimeline x) (v a))
2781+ -> R.Event (SpiderTimeline x) (DMap k v)
2782+ mergeG nt = SpiderEvent . mergeG (unSpiderEvent #. nt) . dynamicConst
2783+ {-# INLINABLE switch #-}
2784+ switch = SpiderEvent . switch . (coerce :: Behavior x (R.Event (SpiderTimeline x) a) -> Behavior x (Event x a)) . unSpiderBehavior
2785+ {-# INLINABLE coincidence #-}
2786+ coincidence = SpiderEvent . coincidence . (coerce :: Event x (R.Event (SpiderTimeline x) a) -> Event x (Event x a)) . unSpiderEvent
2787+ {-# INLINABLE current #-}
2788+ current = SpiderBehavior . dynamicCurrent . unSpiderDynamic
2789+ {-# INLINABLE updated #-}
2790+ updated = SpiderEvent #. dynamicUpdated .# fmap coerce . unSpiderDynamic
2791+ {-# INLINABLE unsafeBuildDynamic #-}
2792+ unsafeBuildDynamic readV0 v' = SpiderDynamic $ dynamicDynIdentity $ unsafeBuildDynamic (coerce readV0) $ coerce $ unSpiderEvent v'
2793+ {-# INLINABLE unsafeBuildIncremental #-}
2794+ unsafeBuildIncremental readV0 dv = SpiderIncremental $ dynamicDyn $ unsafeBuildDynamic (coerce readV0) $ unSpiderEvent dv
2795+ {-# INLINABLE mergeIncrementalG #-}
2796+ mergeIncrementalG nt = SpiderEvent #. mergeG (coerce #. nt) .# unSpiderIncremental
2797+ {-# INLINABLE mergeIncrementalWithMoveG #-}
2798+ mergeIncrementalWithMoveG nt = SpiderEvent #. mergeWithMove (coerce #. nt) .# unSpiderIncremental
2799+ {-# INLINABLE currentIncremental #-}
2800+ currentIncremental = SpiderBehavior . dynamicCurrent . unSpiderIncremental
2801+ {-# INLINABLE updatedIncremental #-}
2802+ updatedIncremental = SpiderEvent . dynamicUpdated . unSpiderIncremental
2803+ {-# INLINABLE incrementalToDynamic #-}
2804+ incrementalToDynamic (SpiderIncremental i) = SpiderDynamic $ dynamicDynIdentity $ unsafeBuildDynamic (readBehaviorUntracked $ dynamicCurrent i) $ flip push (dynamicUpdated i) $ \p -> do
2805+ c <- readBehaviorUntracked $ dynamicCurrent i
2806+ return $ Identity <$> apply p c --TODO: Avoid the redundant 'apply'
2807+ eventCoercion Coercion = Coercion
2808+ behaviorCoercion Coercion = Coercion
2809+ dynamicCoercion Coercion = Coercion
2810+ incrementalCoercion Coercion Coercion = Coercion
2811+ {-# INLINABLE mergeIntIncremental #-}
2812+ mergeIntIncremental = SpiderEvent . mergeInt . coerce
2813+ {-# INLINABLE fanInt #-}
2814+ fanInt e = R.EventSelectorInt $ SpiderEvent . selectInt (fanInt (unSpiderEvent e))
2816+data RootTrigger x a = forall k. GCompare k => RootTrigger (WeakBag (Subscriber x a), IORef (DMap k Identity), k a)
2818+data SpiderEventHandle x a = SpiderEventHandle
2819+ { spiderEventHandleSubscription :: EventSubscription x
2820+ , spiderEventHandleValue :: IORef (Maybe a)
2120instance MonadRef (EventM x) where
2823instance MonadRef (EventM x) where
2121 type Ref (EventM x) = Ref IO
2824 type Ref (EventM x) = Ref IO
2122 {-# INLINABLE newRef #-}
2825 {-# INLINABLE newRef #-}
@@ -2131,7 +2834,7 @@ instance MonadAtomicRef (EventM x) where
2131 atomicModifyRef r f = liftIO $ atomicModifyRef r f
2834 atomicModifyRef r f = liftIO $ atomicModifyRef r f
2133-- | The monad for actions that manipulate a Spider timeline identified by @x@
2836-- | The monad for actions that manipulate a Spider timeline identified by @x@
2134−newtype SpiderHost x a = SpiderHost { unSpiderHost :: ReaderT (SpiderTimeline x) IO a } deriving (Functor, Applicative, MonadFix, MonadIO, MonadException, MonadAsyncException)
2837+newtype SpiderHost (x :: Type) a = SpiderHost { unSpiderHost :: IO a } deriving (Functor, Applicative, MonadFix, MonadIO, MonadException, MonadAsyncException)
2136instance Monad (SpiderHost x) where
2839instance Monad (SpiderHost x) where
2137 {-# INLINABLE (>>=) #-}
2840 {-# INLINABLE (>>=) #-}
@@ -2140,20 +2843,27 @@ instance Monad (SpiderHost x) where
2140 SpiderHost x >> SpiderHost y = SpiderHost $ x >> y
2843 SpiderHost x >> SpiderHost y = SpiderHost $ x >> y
2141 {-# INLINABLE return #-}
2844 {-# INLINABLE return #-}
2142 return x = SpiderHost $ return x
2845 return x = SpiderHost $ return x
2846+#if !MIN_VERSION_base(4,13,0)
2143 {-# INLINABLE fail #-}
2847 {-# INLINABLE fail #-}
2144− fail s = SpiderHost $ fail s
2848+ fail = MonadFail.fail
2851+instance MonadFail (SpiderHost x) where
2852+ {-# INLINABLE fail #-}
2853+ fail s = SpiderHost $ MonadFail.fail s
2146-- | Run an action affecting the global Spider timeline; this will be guarded by
2855-- | Run an action affecting the global Spider timeline; this will be guarded by
2147-- a mutex for that timeline
2856-- a mutex for that timeline
2148runSpiderHost :: SpiderHost Global a -> IO a
2857runSpiderHost :: SpiderHost Global a -> IO a
2149−runSpiderHost (SpiderHost a) = runReaderT a globalSpiderTimeline
2858+runSpiderHost (SpiderHost a) = a
2151-- | Run an action affecting a given Spider timeline; this will be guarded by a
2860-- | Run an action affecting a given Spider timeline; this will be guarded by a
2152-- mutex for that timeline
2861-- mutex for that timeline
2153−runSpiderHostForTimeline :: SpiderHost x a -> SpiderTimeline x -> IO a
2862+runSpiderHostForTimeline :: SpiderHost x a -> SpiderTimelineEnv x -> IO a
2154−runSpiderHostForTimeline (SpiderHost a) = runReaderT a
2863+runSpiderHostForTimeline (SpiderHost a) _ = a
2156−newtype SpiderHostFrame x a = SpiderHostFrame { runSpiderHostFrame :: EventM x a } deriving (Functor, Applicative, MonadFix, MonadIO, MonadException, MonadAsyncException)
2865+newtype SpiderHostFrame (x :: Type) a = SpiderHostFrame { runSpiderHostFrame :: EventM x a }
2866+ deriving (Functor, Applicative, MonadFix, MonadIO, MonadException, MonadAsyncException)
2158instance Monad (SpiderHostFrame x) where
2868instance Monad (SpiderHostFrame x) where
2159 {-# INLINABLE (>>=) #-}
2869 {-# INLINABLE (>>=) #-}
@@ -2162,26 +2872,21 @@ instance Monad (SpiderHostFrame x) where
2162 SpiderHostFrame x >> SpiderHostFrame y = SpiderHostFrame $ x >> y
2872 SpiderHostFrame x >> SpiderHostFrame y = SpiderHostFrame $ x >> y
2163 {-# INLINABLE return #-}
2873 {-# INLINABLE return #-}
2164 return x = SpiderHostFrame $ return x
2874 return x = SpiderHostFrame $ return x
2875+#if !MIN_VERSION_base(4,13,0)
2165 {-# INLINABLE fail #-}
2876 {-# INLINABLE fail #-}
2166 fail s = SpiderHostFrame $ fail s
2877 fail s = SpiderHostFrame $ fail s
2168−instance R.MonadSample (SpiderTimeline x) (SpiderHostFrame x) where
2880+instance NotReady (SpiderTimeline x) (SpiderHostFrame x) where
2169− sample = SpiderHostFrame . readBehaviorUntracked . unSpiderBehavior --TODO: This can cause problems with laziness, so we should get rid of it if we can
2881+ notReadyUntil _ = pure ()
2170−
2882+ notReady = pure ()
2171−instance R.MonadHold (SpiderTimeline x) (SpiderHostFrame x) where
2172− {-# INLINABLE hold #-}
2173− hold v0 e = SpiderHostFrame $ fmap (SpiderBehavior . behaviorHoldIdentity) $ hold v0 $ coerce $ unSpiderEvent e
2174− {-# INLINABLE holdDyn #-}
2175− holdDyn v0 e = SpiderHostFrame $ fmap (SpiderDynamic . dynamicHoldIdentity) $ hold v0 $ coerce $ unSpiderEvent e
2176− {-# INLINABLE holdIncremental #-}
2177− holdIncremental v0 e = SpiderHostFrame $ fmap (SpiderIncremental . dynamicHold) $ hold v0 $ unSpiderEvent e
2179−newEventWithTriggerIO :: (RootTrigger x a -> IO (IO ())) -> IO (Event x a)
2884+newEventWithTriggerIO :: forall x a. HasSpiderTimeline x => (RootTrigger x a -> IO (IO ())) -> IO (Event x a)
2180newEventWithTriggerIO f = do
2885newEventWithTriggerIO f = do
2181 es <- newFanEventWithTriggerIO $ \Refl -> f
2886 es <- newFanEventWithTriggerIO $ \Refl -> f
2182 return $ select es Refl
2887 return $ select es Refl
2184−newFanEventWithTriggerIO :: GCompare k => (forall a. k a -> RootTrigger x a -> IO (IO ())) -> IO (EventSelector x k)
2889+newFanEventWithTriggerIO :: (HasSpiderTimeline x, GCompare k) => (forall a. k a -> RootTrigger x a -> IO (IO ())) -> IO (EventSelector x k)
2185newFanEventWithTriggerIO f = do
2890newFanEventWithTriggerIO f = do
2186 occRef <- newIORef DMap.empty
2891 occRef <- newIORef DMap.empty
2187 subscribedRef <- newIORef DMap.empty
2892 subscribedRef <- newIORef DMap.empty
@@ -2192,41 +2897,8 @@ newFanEventWithTriggerIO f = do
2193 return $ EventSelector $ \k -> eventRoot k r
2898 return $ EventSelector $ \k -> eventRoot k r
2195−instance R.MonadReflexCreateTrigger (SpiderTimeline x) (SpiderHost x) where
2196− newEventWithTrigger = SpiderHost . lift . fmap SpiderEvent . newEventWithTriggerIO
2197− newFanEventWithTrigger f = SpiderHost $ lift $ do
2198− es <- newFanEventWithTriggerIO f
2199− return $ R.EventSelector $ SpiderEvent . select es
2201−instance R.MonadReflexCreateTrigger (SpiderTimeline x) (SpiderHostFrame x) where
2202− newEventWithTrigger = SpiderHostFrame . EventM . liftIO . fmap SpiderEvent . newEventWithTriggerIO
2203− newFanEventWithTrigger f = SpiderHostFrame $ EventM $ liftIO $ do
2204− es <- newFanEventWithTriggerIO f
2205− return $ R.EventSelector $ SpiderEvent . select es
2207−instance R.MonadSubscribeEvent (SpiderTimeline x) (SpiderHost x) where
2208− {-# INLINABLE subscribeEvent #-}
2209− subscribeEvent = runFrame . runSpiderHostFrame . R.subscribeEvent
2211newtype ReadPhase x a = ReadPhase (ResultM x a) deriving (Functor, Applicative, Monad, MonadFix)
2900newtype ReadPhase x a = ReadPhase (ResultM x a) deriving (Functor, Applicative, Monad, MonadFix)
2213−instance R.MonadSample (SpiderTimeline x) (ReadPhase x) where
2214− {-# INLINABLE sample #-}
2215− sample = ReadPhase . R.sample
2217−instance R.MonadHold (SpiderTimeline x) (ReadPhase x) where
2218− {-# INLINABLE hold #-}
2219− hold v0 e = ReadPhase $ R.hold v0 e
2220− {-# INLINABLE holdDyn #-}
2221− holdDyn v0 e = ReadPhase $ R.holdDyn v0 e
2222− {-# INLINABLE holdIncremental #-}
2223− holdIncremental v0 e = ReadPhase $ R.holdIncremental v0 e
2225−instance R.MonadReflexHost (SpiderTimeline x) (SpiderHost x) where
2226− type ReadPhase (SpiderHost x) = ReadPhase x
2227− fireEventsAndRead es (ReadPhase a) = run es a
2228− runHostFrame = runFrame . runSpiderHostFrame
2230instance MonadRef (SpiderHost x) where
2902instance MonadRef (SpiderHost x) where
2231 type Ref (SpiderHost x) = Ref IO
2903 type Ref (SpiderHost x) = Ref IO
2232 newRef = SpiderHost . newRef
2904 newRef = SpiderHost . newRef
@@ -2249,9 +2921,10 @@ instance PrimMonad (SpiderHostFrame x) where
2249 type PrimState (SpiderHostFrame x) = PrimState IO
2921 type PrimState (SpiderHostFrame x) = PrimState IO
2250 primitive = SpiderHostFrame . EventM . primitive
2922 primitive = SpiderHostFrame . EventM . primitive
2252−--------------------------------------------------------------------------------
2924+instance NotReady (SpiderTimeline x) (SpiderHost x) where
2253−-- Deprecated items
2925+ notReadyUntil _ = return ()
2254−--------------------------------------------------------------------------------
2926+ notReady = return ()
2256−{-# DEPRECATED SpiderEnv "Use 'SpiderTimeline' instead" #-}
2928+instance HasSpiderTimeline x => NotReady (SpiderTimeline x) (PerformEventT (SpiderTimeline x) (SpiderHost x)) where
2257−type SpiderEnv = SpiderTimeline
2929+ notReadyUntil _ = return ()
2930+ notReady = return ()