@@ -9,7 +9,6 @@
9{-# LANGUAGE GADTs #-}
9{-# LANGUAGE GADTs #-}
10{-# LANGUAGE GeneralizedNewtypeDeriving #-}
10{-# LANGUAGE GeneralizedNewtypeDeriving #-}
11{-# LANGUAGE LambdaCase #-}
11{-# LANGUAGE LambdaCase #-}
12−{-# LANGUAGE MultiWayIf #-}
13{-# LANGUAGE RankNTypes #-}
12{-# LANGUAGE RankNTypes #-}
14{-# LANGUAGE RoleAnnotations #-}
13{-# LANGUAGE RoleAnnotations #-}
15{-# LANGUAGE ScopedTypeVariables #-}
14{-# LANGUAGE ScopedTypeVariables #-}
@@ -20,6 +19,7 @@
20{-# LANGUAGE DeriveFunctor #-}
19{-# LANGUAGE DeriveFunctor #-}
21{-# LANGUAGE StandaloneDeriving #-}
20{-# LANGUAGE StandaloneDeriving #-}
22{-# LANGUAGE InstanceSigs #-}
21{-# LANGUAGE InstanceSigs #-}
22+{-# LANGUAGE MultiWayIf #-}
24#ifdef USE_REFLEX_OPTIMIZER
24#ifdef USE_REFLEX_OPTIMIZER
25{-# OPTIONS_GHC -fplugin=Reflex.Optimizer #-}
25{-# OPTIONS_GHC -fplugin=Reflex.Optimizer #-}
@@ -38,7 +38,6 @@ import Control.Monad hiding (forM, forM_, mapM, mapM_)
38import Control.Monad.Exception
38import Control.Monad.Exception
39import Control.Monad.Identity hiding (forM, forM_, mapM, mapM_)
39import Control.Monad.Identity hiding (forM, forM_, mapM, mapM_)
40import Control.Monad.Primitive
40import Control.Monad.Primitive
41−--import Control.Monad.Reader hiding (forM, forM_, mapM, mapM_)
42import Control.Monad.Reader.Class
41import Control.Monad.Reader.Class
43import Control.Monad.IO.Class
42import Control.Monad.IO.Class
44import Control.Monad.ReaderIO
43import Control.Monad.ReaderIO
@@ -47,8 +46,9 @@ import Control.Monad.Fail (MonadFail)
47import qualified Control.Monad.Fail as MonadFail
46import qualified Control.Monad.Fail as MonadFail
48import Data.Align
47import Data.Align
49import Data.Coerce
48import Data.Coerce
50−import Data.Dependent.Map (DMap, DSum (..))
49+import Data.Dependent.Map (DMap)
51import qualified Data.Dependent.Map as DMap
50import qualified Data.Dependent.Map as DMap
51+import Data.Dependent.Sum (DSum (..))
52import Data.FastMutableIntMap (FastMutableIntMap, PatchIntMap (..))
52import Data.FastMutableIntMap (FastMutableIntMap, PatchIntMap (..))
53import qualified Data.FastMutableIntMap as FastMutableIntMap
53import qualified Data.FastMutableIntMap as FastMutableIntMap
54import Data.Foldable hiding (concat, elem, sequence_)
54import Data.Foldable hiding (concat, elem, sequence_)
@@ -61,12 +61,13 @@ import qualified Data.IntMap.Strict as IntMap
61import Data.IORef
61import Data.IORef
62import Data.Kind (Type)
62import Data.Kind (Type)
63import Data.Maybe hiding (mapMaybe)
63import Data.Maybe hiding (mapMaybe)
64−import Data.Monoid ((<>))
64+import Data.Monoid (mempty, (<>))
65import Data.Proxy
65import Data.Proxy
66import Data.These
66import Data.These
67import Data.Traversable
67import Data.Traversable
68+import Data.Type.Equality ((:~:)(Refl))
68import Data.Witherable (Filterable, mapMaybe)
69import Data.Witherable (Filterable, mapMaybe)
69−import GHC.Exts
70+import GHC.Exts hiding (toList)
70import GHC.IORef (IORef (..))
71import GHC.IORef (IORef (..))
71import GHC.Stack
72import GHC.Stack
72import Reflex.FastWeak
73import Reflex.FastWeak
@@ -85,14 +86,16 @@ import Data.Zip (Zip (..))
86#ifdef DEBUG_CYCLES
87#ifdef DEBUG_CYCLES
87import Control.Monad.State hiding (forM, forM_, mapM, mapM_, sequence)
88import Control.Monad.State hiding (forM, forM_, mapM, mapM_, sequence)
88import Data.List.NonEmpty (NonEmpty (..), nonEmpty)
91import Data.List.NonEmpty (NonEmpty (..), nonEmpty)
89import qualified Data.List.NonEmpty as NonEmpty
92import qualified Data.List.NonEmpty as NonEmpty
90−import Data.Monoid (mempty)
91import Data.Tree (Forest, Tree (..), drawForest)
93import Data.Tree (Forest, Tree (..), drawForest)
92−#endif
94+import Data.List (isPrefixOf)
94−import Data.FastWeakBag (FastWeakBag)
96+import Data.FastWeakBag (FastWeakBag, FastWeakBagTicket)
95import qualified Data.FastWeakBag as FastWeakBag
97import qualified Data.FastWeakBag as FastWeakBag
96import Data.Reflection
99import Data.Reflection
97import Data.Some (Some(Some))
100import Data.Some (Some(Some))
98import Data.Type.Coercion
101import Data.Type.Coercion
@@ -103,21 +106,26 @@ import qualified Reflex.Class
103import qualified Reflex.Class as R
106import qualified Reflex.Class as R
104import qualified Reflex.Host.Class
107import qualified Reflex.Host.Class
105import Reflex.NotReady.Class
108import Reflex.NotReady.Class
106−import Reflex.Patch
109+import Data.Patch
107−import qualified Reflex.Patch.DMapWithMove as PatchDMapWithMove
110+import qualified Data.Patch.DMapWithMove as PatchDMapWithMove
108import Reflex.PerformEvent.Base (PerformEventT)
111import Reflex.PerformEvent.Base (PerformEventT)
110#ifdef DEBUG_TRACE_EVENTS
113#ifdef DEBUG_TRACE_EVENTS
111import qualified Data.ByteString.Char8 as BS8
114import qualified Data.ByteString.Char8 as BS8
112import System.IO (stderr)
115import System.IO (stderr)
116+import Data.List (isPrefixOf)
115−#ifdef DEBUG_TRACE_EVENTS
119+-- TODO stdout might not be the best channel for debug output
120+debugStrLn :: String -> IO ()
121+debugStrLn = putStrLn
123+#ifdef DEBUG_TRACE_EVENTS
117withStackOneLine :: (BS8.ByteString -> a) -> a
124withStackOneLine :: (BS8.ByteString -> a) -> a
118withStackOneLine expr = unsafePerformIO $ do
125withStackOneLine expr = unsafePerformIO $ do
119 stack <- currentCallStack
126 stack <- currentCallStack
120− return (expr (BS8.pack (unwords (reverse stack))))
127+ return (expr . BS8.pack . unwords . dropInternal . reverse $ stack)
128+ where dropInternal = filterStack "Reflex.Spider.Internal"
@@ -128,28 +136,42 @@ debugInvalidateHeight :: Bool
128debugInvalidate :: Bool
136debugInvalidate :: Bool
130#ifdef DEBUG
138#ifdef DEBUG
132#define DEBUG_NODEIDS
139#define DEBUG_NODEIDS
141+#ifdef DEBUG_TRACE_PROPAGATION
134debugPropagate = True
142debugPropagate = True
144+debugPropagate = False
147+#ifdef DEBUG_TRACE_HEIGHT
148+debugInvalidateHeight = True
136debugInvalidateHeight = False
150debugInvalidateHeight = False
153+#ifdef DEBUG_TRACE_INVALIDATION
138debugInvalidate = True
154debugInvalidate = True
156+debugInvalidate = False
140class HasNodeId a where
159class HasNodeId a where
141 getNodeId :: a -> Int
160 getNodeId :: a -> Int
143−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
144− getNodeId = holdNodeId
166+ getNodeId = _fanInt_nodeId
146−instance HasNodeId (PushSubscribed x a b) where
168+instance HasNodeId (Hold x p) where
147− getNodeId = pushSubscribedNodeId
169+ getNodeId = holdNodeId
149instance HasNodeId (SwitchSubscribed x a) where
171instance HasNodeId (SwitchSubscribed x a) where
150 getNodeId = switchSubscribedNodeId
172 getNodeId = switchSubscribedNodeId
152−instance HasNodeId (FanSubscribed x a) where
174+instance HasNodeId (FanSubscribed x v a) where
153 getNodeId = fanSubscribedNodeId
175 getNodeId = fanSubscribedNodeId
155instance HasNodeId (CoincidenceSubscribed x a) where
177instance HasNodeId (CoincidenceSubscribed x a) where
@@ -163,41 +185,16 @@ instance HasNodeId (Pull x a) where
164{-# INLINE showNodeId #-}
186{-# INLINE showNodeId #-}
165showNodeId :: HasNodeId a => a -> String
187showNodeId :: HasNodeId a => a -> String
166−showNodeId = ("#"<>) . show . getNodeId
188+showNodeId = showNodeId' . getNodeId
168−showSubscriberType :: Subscriber x a -> String
190+showNodeId' :: Int -> String
169−showSubscriberType = \case
191+showNodeId' = ("#"<>) . show
170− SubscriberPush _ _ -> "SubscriberPush"
192+
171− SubscriberMerge _ _ -> "SubscriberMerge"
172− SubscriberFan _ -> "SubscriberFan"
173− SubscriberMergeChange _ -> "SubscriberMergeChange"
174− SubscriberHold _ -> "SubscriberHold"
175− SubscriberHoldIdentity _ -> "SubscriberHoldIdentity"
176− SubscriberSwitch _ -> "SubscriberSwitch"
177− SubscriberCoincidenceOuter _ -> "SubscriberCoincidenceOuter"
178− SubscriberCoincidenceInner _ -> "SubscriberCoincidenceInner"
179− SubscriberHandle -> "SubscriberHandle"
181−showEventType :: Event x a -> String
182−showEventType = \case
183− EventRoot _ _ -> "EventRoot"
184− EventNever -> "EventNever"
185− EventPush _ -> "EventPush"
186− EventMerge _ -> "EventMerge"
187− EventFan _ _ -> "EventFan"
188− EventSwitch _ -> "EventSwitch"
189− EventCoincidence _ -> "EventCoincidence"
190− EventHold _ -> "EventHold"
191− EventDyn _ -> "EventDyn"
192− EventHoldIdentity _ -> "EventHoldIdentity"
193− EventDynIdentity _ -> "EventDynIdentity"
197debugPropagate = False
196debugPropagate = False
199debugInvalidateHeight = False
197debugInvalidateHeight = False
201debugInvalidate = False
198debugInvalidate = False
203-- 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
@@ -205,6 +202,10 @@ debugInvalidate = False
205showNodeId :: a -> String
202showNodeId :: a -> String
206showNodeId _ = ""
203showNodeId _ = ""
205+{-# INLINE showNodeId' #-}
206+showNodeId' :: Int -> String
210#ifdef DEBUG_NODEIDS
211#ifdef DEBUG_NODEIDS
@@ -250,9 +251,9 @@ subscribeAndRead = unEvent
250-- 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
251-- efficient than 'push'
252-- efficient than 'push'
252{-# INLINE [1] pushCheap #-}
253{-# INLINE [1] pushCheap #-}
253−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
254pushCheap !f e = Event $ \sub -> do
255pushCheap !f e = Event $ \sub -> do
255− (subscription, occ) <- subscribeAndRead e $ sub
256+ (subscription, occ) <- subscribeAndRead e $ debugSubscriber' "push" $ sub
256 { subscriberPropagate = \a -> do
257 { subscriberPropagate = \a -> do
257 mb <- f a
258 mb <- f a
258 mapM_ (subscriberPropagate sub) mb
259 mapM_ (subscriberPropagate sub) mb
@@ -271,10 +272,10 @@ terminalSubscriber p = Subscriber
272-- | Subscribe to an Event only for the duration of one occurrence
273-- | Subscribe to an Event only for the duration of one occurrence
273{-# INLINE subscribeAndReadHead #-}
274{-# INLINE subscribeAndReadHead #-}
274−subscribeAndReadHead :: Event x a -> Subscriber x a -> EventM x (EventSubscription x, Maybe a)
275+subscribeAndReadHead :: HasSpiderTimeline x => Event x a -> Subscriber x a -> EventM x (EventSubscription x, Maybe a)
275subscribeAndReadHead e sub = do
276subscribeAndReadHead e sub = do
276 subscriptionRef <- liftIO $ newIORef $ error "subscribeAndReadHead: not initialized"
277 subscriptionRef <- liftIO $ newIORef $ error "subscribeAndReadHead: not initialized"
277− (subscription, occ) <- subscribeAndRead e $ sub
278+ (subscription, occ) <- subscribeAndRead e $ debugSubscriber' "head" $ sub
278 { subscriberPropagate = \a -> do
279 { subscriberPropagate = \a -> do
279 liftIO $ unsubscribe =<< readIORef subscriptionRef
280 liftIO $ unsubscribe =<< readIORef subscriptionRef
280 subscriberPropagate sub a
281 subscriberPropagate sub a
@@ -285,24 +286,42 @@ subscribeAndReadHead e sub = do
285 return (subscription, occ)
286 return (subscription, occ)
287--TODO: Make this lazy in its input event
288--TODO: Make this lazy in its input event
288−headE :: (MonadIO m, Defer (SomeMergeInit x) m) => Event x a -> m (Event x a)
289+headE :: (MonadIO m, Defer (SomeMergeInit x) m, HasSpiderTimeline x) => Event x a -> m (Event x a)
289headE originalE = do
290headE originalE = do
290 parent <- liftIO $ newIORef $ Just originalE
291 parent <- liftIO $ newIORef $ Just originalE
291 defer $ SomeMergeInit $ do --TODO: Rename SomeMergeInit appropriately
292 defer $ SomeMergeInit $ do --TODO: Rename SomeMergeInit appropriately
292 let clearParent = liftIO $ writeIORef parent Nothing
293 let clearParent = liftIO $ writeIORef parent Nothing
293− (_, occ) <- subscribeAndReadHead originalE $ terminalSubscriber $ \_ -> clearParent
294+ (_, occ) <- subscribeAndReadHead originalE $ terminalSubscriber $ const clearParent
294 when (isJust occ) clearParent
295 when (isJust occ) clearParent
295− return $ Event $ \sub -> do
296+ return $ Event $ \sub ->
296 liftIO (readIORef parent) >>= \case
297 liftIO (readIORef parent) >>= \case
297− Nothing -> return (EventSubscription (return ()) $ EventSubscribed zeroRef $ toAny (), Nothing)
298+ Nothing -> subscribeAndReadNever
298 Just e -> subscribeAndReadHead e sub
299 Just e -> subscribeAndReadHead e sub
300data CacheSubscribed x a
301data CacheSubscribed x a
301 = CacheSubscribed { _cacheSubscribed_subscribers :: {-# UNPACK #-} !(FastWeakBag (Subscriber x a))
302 = CacheSubscribed { _cacheSubscribed_subscribers :: {-# UNPACK #-} !(FastWeakBag (Subscriber x a))
302 , _cacheSubscribed_parent :: {-# UNPACK #-} !(EventSubscription x)
303 , _cacheSubscribed_parent :: {-# UNPACK #-} !(EventSubscription x)
303 , _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
306-- | Construct an 'Event' whose value is guaranteed not to be recomputed
325-- | Construct an 'Event' whose value is guaranteed not to be recomputed
307-- repeatedly
326-- repeatedly
@@ -327,18 +346,23 @@ cacheEvent e =
327 subscribedTicket <- liftIO (readIORef mSubscribedRef >>= getFastWeakTicket) >>= \case
346 subscribedTicket <- liftIO (readIORef mSubscribedRef >>= getFastWeakTicket) >>= \case
328 Just subscribedTicket -> return subscribedTicket
347 Just subscribedTicket -> return subscribedTicket
329 Nothing -> do
348 Nothing -> do
350+ nodeId <- liftIO newNodeId
330 subscribers <- liftIO FastWeakBag.empty
352 subscribers <- liftIO FastWeakBag.empty
331 occRef <- liftIO $ newIORef Nothing -- This should never be read prior to being set below
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
332 (parentSub, occ) <- subscribeAndRead e $ Subscriber
357 (parentSub, occ) <- subscribeAndRead e $ Subscriber
333− { subscriberPropagate = \a -> do
359+ { subscriberPropagate = \a -> do
334− liftIO $ writeIORef occRef $ Just a
360+ liftIO $ writeIORef occRef (Just a)
335− scheduleClear occRef
361+ scheduleClear occRef
336− propagateFast a subscribers
362+ propagateFast a subscribers
337− , subscriberInvalidateHeight = \old -> do
338− FastWeakBag.traverse_ subscribers $ invalidateSubscriberHeight old
363+ , subscriberInvalidateHeight = FastWeakBag.traverse_ subscribers . invalidateSubscriberHeight
339− , subscriberRecalculateHeight = \new -> do
340− FastWeakBag.traverse_ subscribers $ recalculateSubscriberHeight new
364+ , subscriberRecalculateHeight = FastWeakBag.traverse_ subscribers . recalculateSubscriberHeight
342 when (isJust occ) $ do
366 when (isJust occ) $ do
343 liftIO $ writeIORef occRef occ -- Set the initial value of occRef; we don't need to do this if occ is Nothing
367 liftIO $ writeIORef occRef occ -- Set the initial value of occRef; we don't need to do this if occ is Nothing
344 scheduleClear occRef
368 scheduleClear occRef
@@ -346,29 +370,45 @@ cacheEvent e =
346 { _cacheSubscribed_subscribers = subscribers
370 { _cacheSubscribed_subscribers = subscribers
347 , _cacheSubscribed_parent = parentSub
371 , _cacheSubscribed_parent = parentSub
348 , _cacheSubscribed_occurrence = occRef
372 , _cacheSubscribed_occurrence = occRef
374+ , _cacheSubscribed_nodeId = nodeId
350 subscribedTicket <- liftIO $ mkFastWeakTicket subscribed
377 subscribedTicket <- liftIO $ mkFastWeakTicket subscribed
351 liftIO $ writeIORef mSubscribedRef =<< getFastWeakTicketWeak subscribedTicket
378 liftIO $ writeIORef mSubscribedRef =<< getFastWeakTicketWeak subscribedTicket
352 return subscribedTicket
379 return subscribedTicket
353− liftIO $ do
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
354− subscribed <- getFastWeakTicketValue subscribedTicket
385+ subscribed <- getFastWeakTicketValue subscribedTicket
355− ticket <- FastWeakBag.insert sub $ _cacheSubscribed_subscribers subscribed
386+ ticket <- FastWeakBag.insert sub $ _cacheSubscribed_subscribers subscribed
356− occ <- readIORef $ _cacheSubscribed_occurrence subscribed
387+ occ <- readIORef $ _cacheSubscribed_occurrence subscribed
389+ let parentSub = _cacheSubscribed_parent subscribed
357− let es = EventSubscription
390+ es = EventSubscription
358− { _eventSubscription_unsubscribe = do
391+ { _eventSubscription_unsubscribe = do
359− FastWeakBag.remove ticket
392+ FastWeakBag.remove ticket
360− isEmpty <- FastWeakBag.isEmpty $ _cacheSubscribed_subscribers subscribed
394+ isEmpty <- FastWeakBag.isEmpty $ _cacheSubscribed_subscribers subscribed
361− when isEmpty $ do
395+ when isEmpty $ do
362− writeIORef mSubscribedRef emptyFastWeak
396+ writeIORef mSubscribedRef emptyFastWeak
363− unsubscribe $ _cacheSubscribed_parent subscribed
397+ unsubscribe parentSub
364− touch ticket
398+ touch ticket
365− touch subscribedTicket
399+ touch subscribedTicket
366− , _eventSubscription_subscribed = EventSubscribed
400+ , _eventSubscription_subscribed = EventSubscribed
367− { eventSubscribedHeightRef = eventSubscribedHeightRef $ _eventSubscription_subscribed $ _cacheSubscribed_parent subscribed
401+ { eventSubscribedHeightRef = eventSubscribedHeightRef $ _eventSubscription_subscribed parentSub
368− , eventSubscribedRetained = toAny subscribedTicket
402+ , eventSubscribedRetained = toAny subscribedTicket
404+ , eventSubscribedGetParents = return [_eventSubscription_subscribed parentSub]
405+ , eventSubscribedHasOwnHeightRef = False
406+ , eventSubscribedWhoCreated = whoCreatedIORef mSubscribedRef
371− return (es, occ)
410+ return (es, occ)
373subscribe :: Event x a -> Subscriber x a -> EventM x (EventSubscription x)
413subscribe :: Event x a -> Subscriber x a -> EventM x (EventSubscription x)
374subscribe e s = fst <$> subscribeAndRead e s
414subscribe e s = fst <$> subscribeAndRead e s
@@ -380,11 +420,14 @@ wrap tag getSpecificSubscribed sub = do
380 let es = tag subd
420 let es = tag subd
381 return (EventSubscription (WeakBag.remove sln >> touch sln) es, occ)
421 return (EventSubscription (WeakBag.remove sln >> touch sln) es, occ)
383−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
384eventRoot !k !r = Event $ wrap eventSubscribedRoot $ liftIO . getRootSubscribed k r
424eventRoot !k !r = Event $ wrap eventSubscribedRoot $ liftIO . getRootSubscribed k r
426+subscribeAndReadNever :: EventM x (EventSubscription x, Maybe a)
427+subscribeAndReadNever = return (EventSubscription (return ()) eventSubscribedNever, Nothing)
386eventNever :: Event x a
429eventNever :: Event x a
387−eventNever = Event $ \_ -> return (EventSubscription (return ()) eventSubscribedNever, Nothing)
430+eventNever = Event $ const subscribeAndReadNever
389eventFan :: (GCompare k, HasSpiderTimeline x) => k a -> Fan x k v -> Event x (v a)
432eventFan :: (GCompare k, HasSpiderTimeline x) => k a -> Fan x k v -> Event x (v a)
390eventFan !k !f = Event $ wrap eventSubscribedFan $ getFanSubscribed k f
433eventFan !k !f = Event $ wrap eventSubscribedFan $ getFanSubscribed k f
@@ -421,16 +464,6 @@ data Subscriber x a = Subscriber
421 , subscriberRecalculateHeight :: !(Height -> IO ())
464 , subscriberRecalculateHeight :: !(Height -> IO ())
424−--TODO: Move this comment to WeakBag
425−-- These function are constructor functions that are marked NOINLINE so they are
426−-- opaque to GHC. If we do not do this, then GHC will sometimes fuse the constructor away
427−-- so any weak references that are attached to the constructors will have their
428−-- finalizer run. Using the opaque constructor, does not see the
429−-- constructor application, so it behaves like an IORef and cannot be fused away.
431−-- The result is also evaluated to WHNF, since forcing a thunk invalidates
432−-- the weak pointer to it in some cases.
434newSubscriberHold :: (HasSpiderTimeline x, Patch p) => Hold x p -> IO (Subscriber x p)
467newSubscriberHold :: (HasSpiderTimeline x, Patch p) => Hold x p -> IO (Subscriber x p)
435newSubscriberHold h = return $ Subscriber
468newSubscriberHold h = return $ Subscriber
436 { subscriberPropagate = {-# SCC "traverseHold" #-} propagateSubscriberHold h
469 { subscriberPropagate = {-# SCC "traverseHold" #-} propagateSubscriberHold h
@@ -439,10 +472,10 @@ newSubscriberHold h = return $ Subscriber
441newSubscriberFan :: forall x k v. (HasSpiderTimeline x, GCompare k) => FanSubscribed x k v -> IO (Subscriber x (DMap k v))
474newSubscriberFan :: forall x k v. (HasSpiderTimeline x, GCompare k) => FanSubscribed x k v -> IO (Subscriber x (DMap k v))
442−newSubscriberFan subscribed = return $ Subscriber
475+newSubscriberFan subscribed = debugSubscriber ("SubscriberFan " <> showNodeId subscribed) $ Subscriber
443 { subscriberPropagate = \a -> {-# SCC "traverseFan" #-} do
476 { subscriberPropagate = \a -> {-# SCC "traverseFan" #-} do
444 subs <- liftIO $ readIORef $ fanSubscribedSubscribers subscribed
477 subs <- liftIO $ readIORef $ fanSubscribedSubscribers subscribed
445− tracePropagate (Proxy :: Proxy x) $ "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"
446 liftIO $ writeIORef (fanSubscribedOccurrence subscribed) $ Just a
479 liftIO $ writeIORef (fanSubscribedOccurrence subscribed) $ Just a
447 scheduleClear $ fanSubscribedOccurrence subscribed
480 scheduleClear $ fanSubscribedOccurrence subscribed
448 let f _ (Pair v subsubs) = do
481 let f _ (Pair v subsubs) = do
@@ -451,50 +484,40 @@ newSubscriberFan subscribed = return $ Subscriber
451 _ <- 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_
452 return ()
485 return ()
453 , subscriberInvalidateHeight = \old -> do
486 , subscriberInvalidateHeight = \old -> do
454− when debugInvalidateHeight $ putStrLn $ "invalidateSubscriberHeight: SubscriberFan" <> showNodeId subscribed
455 subscribers <- readIORef $ fanSubscribedSubscribers subscribed
487 subscribers <- readIORef $ fanSubscribedSubscribers subscribed
456 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
457− when debugInvalidateHeight $ putStrLn $ "invalidateSubscriberHeight: SubscriberFan" <> showNodeId subscribed <> " done"
458 , subscriberRecalculateHeight = \new -> do
489 , subscriberRecalculateHeight = \new -> do
459− when debugInvalidateHeight $ putStrLn $ "recalculateSubscriberHeight: SubscriberFan" <> showNodeId subscribed
460 subscribers <- readIORef $ fanSubscribedSubscribers subscribed
490 subscribers <- readIORef $ fanSubscribedSubscribers subscribed
461 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
462− when debugInvalidateHeight $ putStrLn $ "recalculateSubscriberHeight: SubscriberFan" <> showNodeId subscribed <> " done"
465newSubscriberSwitch :: forall x a. HasSpiderTimeline x => SwitchSubscribed x a -> IO (Subscriber x a)
494newSubscriberSwitch :: forall x a. HasSpiderTimeline x => SwitchSubscribed x a -> IO (Subscriber x a)
466−newSubscriberSwitch subscribed = return $ Subscriber
495+newSubscriberSwitch subscribed = debugSubscriber ("SubscriberCoincidenceOuter" <> showNodeId subscribed) $ Subscriber
467 { subscriberPropagate = \a -> {-# SCC "traverseSwitch" #-} do
496 { subscriberPropagate = \a -> {-# SCC "traverseSwitch" #-} do
468− tracePropagate (Proxy :: Proxy x) $ "SubscriberSwitch" <> showNodeId subscribed
469 liftIO $ writeIORef (switchSubscribedOccurrence subscribed) $ Just a
497 liftIO $ writeIORef (switchSubscribedOccurrence subscribed) $ Just a
470 scheduleClear $ switchSubscribedOccurrence subscribed
498 scheduleClear $ switchSubscribedOccurrence subscribed
471 propagate a $ switchSubscribedSubscribers subscribed
499 propagate a $ switchSubscribedSubscribers subscribed
472 , subscriberInvalidateHeight = \_ -> do
500 , subscriberInvalidateHeight = \_ -> do
473− when debugInvalidateHeight $ putStrLn $ "invalidateSubscriberHeight: SubscriberSwitch" <> showNodeId subscribed
474 oldHeight <- readIORef $ switchSubscribedHeight subscribed
501 oldHeight <- readIORef $ switchSubscribedHeight subscribed
475 when (oldHeight /= invalidHeight) $ do
502 when (oldHeight /= invalidHeight) $ do
476 writeIORef (switchSubscribedHeight subscribed) $! invalidHeight
503 writeIORef (switchSubscribedHeight subscribed) $! invalidHeight
477 WeakBag.traverse_ (switchSubscribedSubscribers subscribed) $ invalidateSubscriberHeight oldHeight
504 WeakBag.traverse_ (switchSubscribedSubscribers subscribed) $ invalidateSubscriberHeight oldHeight
478− when debugInvalidateHeight $ putStrLn $ "invalidateSubscriberHeight: SubscriberSwitch" <> showNodeId subscribed <> " done"
479− , subscriberRecalculateHeight = \new -> do
505+ , subscriberRecalculateHeight = (`updateSwitchHeight` subscribed)
480− when debugInvalidateHeight $ putStrLn $ "recalculateSubscriberHeight: SubscriberSwitch" <> showNodeId subscribed
481− updateSwitchHeight new subscribed
482− when debugInvalidateHeight $ putStrLn $ "recalculateSubscriberHeight: SubscriberSwitch" <> showNodeId subscribed <> " done"
485newSubscriberCoincidenceOuter :: forall x b. HasSpiderTimeline x => CoincidenceSubscribed x b -> IO (Subscriber x (Event x b))
508newSubscriberCoincidenceOuter :: forall x b. HasSpiderTimeline x => CoincidenceSubscribed x b -> IO (Subscriber x (Event x b))
486−newSubscriberCoincidenceOuter subscribed = return $ Subscriber
509+newSubscriberCoincidenceOuter subscribed = debugSubscriber ("SubscriberCoincidenceOuter" <> showNodeId subscribed) $ Subscriber
487 { subscriberPropagate = \a -> {-# SCC "traverseCoincidenceOuter" #-} do
510 { subscriberPropagate = \a -> {-# SCC "traverseCoincidenceOuter" #-} do
488− tracePropagate (Proxy :: Proxy x) $ "SubscriberCoincidenceOuter" <> showNodeId subscribed
489 outerHeight <- liftIO $ readIORef $ coincidenceSubscribedHeight subscribed
511 outerHeight <- liftIO $ readIORef $ coincidenceSubscribedHeight subscribed
490 tracePropagate (Proxy :: Proxy x) $ " outerHeight = " <> show outerHeight
512 tracePropagate (Proxy :: Proxy x) $ " outerHeight = " <> show outerHeight
491 (occ, innerHeight, innerSubd) <- subscribeCoincidenceInner a outerHeight subscribed
513 (occ, innerHeight, innerSubd) <- subscribeCoincidenceInner a outerHeight subscribed
492 tracePropagate (Proxy :: Proxy x) $ " isJust occ = " <> show (isJust occ)
514 tracePropagate (Proxy :: Proxy x) $ " isJust occ = " <> show (isJust occ)
493 tracePropagate (Proxy :: Proxy x) $ " innerHeight = " <> show innerHeight
515 tracePropagate (Proxy :: Proxy x) $ " innerHeight = " <> show innerHeight
494 liftIO $ writeIORef (coincidenceSubscribedInnerParent subscribed) $ Just innerSubd
517 liftIO $ writeIORef (coincidenceSubscribedInnerParent subscribed) $ Just innerSubd
495 scheduleClear $ coincidenceSubscribedInnerParent subscribed
518 scheduleClear $ coincidenceSubscribedInnerParent subscribed
496 case occ of
519 case occ of
497− Nothing -> do
520+ Nothing ->
498 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
499 writeIORef (coincidenceSubscribedHeight subscribed) $! innerHeight
522 writeIORef (coincidenceSubscribedHeight subscribed) $! innerHeight
500 WeakBag.traverse_ (coincidenceSubscribedSubscribers subscribed) $ invalidateSubscriberHeight outerHeight
523 WeakBag.traverse_ (coincidenceSubscribedSubscribers subscribed) $ invalidateSubscriberHeight outerHeight
@@ -503,20 +526,13 @@ newSubscriberCoincidenceOuter subscribed = return $ Subscriber
503 liftIO $ writeIORef (coincidenceSubscribedOccurrence subscribed) occ
526 liftIO $ writeIORef (coincidenceSubscribedOccurrence subscribed) occ
504 scheduleClear $ coincidenceSubscribedOccurrence subscribed
527 scheduleClear $ coincidenceSubscribedOccurrence subscribed
505 propagate o $ coincidenceSubscribedSubscribers subscribed
528 propagate o $ coincidenceSubscribedSubscribers subscribed
506− , subscriberInvalidateHeight = \_ -> do
507− when debugInvalidateHeight $ putStrLn $ "invalidateSubscriberHeight: SubscriberCoincidenceOuter" <> showNodeId subscribed
508− invalidateCoincidenceHeight subscribed
529+ , subscriberInvalidateHeight = \_ -> invalidateCoincidenceHeight subscribed
509− when debugInvalidateHeight $ putStrLn $ "invalidateSubscriberHeight: SubscriberCoincidenceOuter" <> showNodeId subscribed <> " done"
510− , subscriberRecalculateHeight = \_ -> do
511− when debugInvalidateHeight $ putStrLn $ "recalculateSubscriberHeight: SubscriberCoincidenceOuter" <> showNodeId subscribed
512− recalculateCoincidenceHeight subscribed
530+ , subscriberRecalculateHeight = \_ -> recalculateCoincidenceHeight subscribed
513− when debugInvalidateHeight $ putStrLn $ "recalculateSubscriberHeight: SubscriberCoincidenceOuter" <> showNodeId subscribed <> " done"
516newSubscriberCoincidenceInner :: forall x a. HasSpiderTimeline x => CoincidenceSubscribed x a -> IO (Subscriber x a)
533newSubscriberCoincidenceInner :: forall x a. HasSpiderTimeline x => CoincidenceSubscribed x a -> IO (Subscriber x a)
517−newSubscriberCoincidenceInner subscribed = return $ Subscriber
534+newSubscriberCoincidenceInner subscribed = debugSubscriber ("SubscriberCoincidenceInner" <> showNodeId subscribed) $ Subscriber
518 { subscriberPropagate = \a -> {-# SCC "traverseCoincidenceInner" #-} do
535 { subscriberPropagate = \a -> {-# SCC "traverseCoincidenceInner" #-} do
519− tracePropagate (Proxy :: Proxy x) $ "SubscriberCoincidenceInner" <> showNodeId subscribed
520 occ <- liftIO $ readIORef $ coincidenceSubscribedOccurrence subscribed
536 occ <- liftIO $ readIORef $ coincidenceSubscribedOccurrence subscribed
521 case occ of
537 case occ of
522 Just _ -> return () -- SubscriberCoincidenceOuter must have already propagated this event
538 Just _ -> return () -- SubscriberCoincidenceOuter must have already propagated this event
@@ -524,14 +540,8 @@ newSubscriberCoincidenceInner subscribed = return $ Subscriber
524 liftIO $ writeIORef (coincidenceSubscribedOccurrence subscribed) $ Just a
540 liftIO $ writeIORef (coincidenceSubscribedOccurrence subscribed) $ Just a
525 scheduleClear $ coincidenceSubscribedOccurrence subscribed
541 scheduleClear $ coincidenceSubscribedOccurrence subscribed
526 propagate a $ coincidenceSubscribedSubscribers subscribed
542 propagate a $ coincidenceSubscribedSubscribers subscribed
527− , subscriberInvalidateHeight = \_ -> do
528− when debugInvalidateHeight $ putStrLn $ "invalidateSubscriberHeight: SubscriberCoincidenceInner" <> showNodeId subscribed
529− invalidateCoincidenceHeight subscribed
543+ , subscriberInvalidateHeight = \_ -> invalidateCoincidenceHeight subscribed
530− when debugInvalidateHeight $ putStrLn $ "invalidateSubscriberHeight: SubscriberCoincidenceInner" <> showNodeId subscribed <> " done"
531− , subscriberRecalculateHeight = \_ -> do
532− when debugInvalidateHeight $ putStrLn $ "recalculateSubscriberHeight: SubscriberCoincidenceInner" <> showNodeId subscribed
533− recalculateCoincidenceHeight subscribed
544+ , subscriberRecalculateHeight = \_ -> recalculateCoincidenceHeight subscribed
534− when debugInvalidateHeight $ putStrLn $ "recalculateSubscriberHeight: SubscriberCoincidenceInner" <> showNodeId subscribed <> " done"
537invalidateSubscriberHeight :: Height -> Subscriber x a -> IO ()
547invalidateSubscriberHeight :: Height -> Subscriber x a -> IO ()
@@ -541,15 +551,15 @@ recalculateSubscriberHeight :: Height -> Subscriber x a -> IO ()
541recalculateSubscriberHeight = flip subscriberRecalculateHeight
551recalculateSubscriberHeight = flip subscriberRecalculateHeight
543-- | Propagate everything at the current height
553-- | Propagate everything at the current height
544−propagate :: a -> WeakBag (Subscriber x a) -> EventM x ()
554+propagate :: forall x a. HasSpiderTimeline x => a -> WeakBag (Subscriber x a) -> EventM x ()
545−propagate a subscribers = withIncreasedDepth $ do
555+propagate a subscribers = withIncreasedDepth (Proxy::Proxy x) $
546 -- 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
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
547 --TODO: Should we check if nodes already have their values before propagating? Maybe we're re-doing work
557 --TODO: Should we check if nodes already have their values before propagating? Maybe we're re-doing work
548 WeakBag.traverse_ subscribers $ \s -> subscriberPropagate s a
558 WeakBag.traverse_ subscribers $ \s -> subscriberPropagate s a
550-- | Propagate everything at the current height
560-- | Propagate everything at the current height
551−propagateFast :: a -> FastWeakBag (Subscriber x a) -> EventM x ()
561+propagateFast :: forall x a. HasSpiderTimeline x => a -> FastWeakBag (Subscriber x a) -> EventM x ()
552−propagateFast a subscribers = withIncreasedDepth $ do
562+propagateFast a subscribers = withIncreasedDepth (Proxy::Proxy x) $
553 -- 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
554 --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
555 FastWeakBag.traverse_ subscribers $ \s -> subscriberPropagate s a
565 FastWeakBag.traverse_ subscribers $ \s -> subscriberPropagate s a
@@ -570,7 +580,7 @@ data EventSubscribed x = EventSubscribed
570 { eventSubscribedHeightRef :: {-# UNPACK #-} !(IORef Height)
580 { eventSubscribedHeightRef :: {-# UNPACK #-} !(IORef Height)
571 , eventSubscribedRetained :: {-# NOUNPACK #-} !Any
581 , eventSubscribedRetained :: {-# NOUNPACK #-} !Any
572#ifdef DEBUG_CYCLES
582#ifdef DEBUG_CYCLES
573− , eventSubscribedGetParents :: !(IO [Some (EventSubscribed x)]) -- For debugging loops
583+ , eventSubscribedGetParents :: !(IO [EventSubscribed x]) -- For debugging loops
574 , eventSubscribedHasOwnHeightRef :: !Bool
584 , eventSubscribedHasOwnHeightRef :: !Bool
575 , eventSubscribedWhoCreated :: !(IO [String])
585 , eventSubscribedWhoCreated :: !(IO [String])
@@ -597,13 +607,23 @@ eventSubscribedNever = EventSubscribed
597 , eventSubscribedWhoCreated = return ["never"]
607 , eventSubscribedWhoCreated = return ["never"]
610+eventSubscribedNow :: EventSubscribed x
611+eventSubscribedNow = EventSubscribed
612+ { eventSubscribedHeightRef = zeroRef
613+ , eventSubscribedRetained = toAny ()
615+ , eventSubscribedGetParents = return []
616+ , eventSubscribedHasOwnHeightRef = False
617+ , eventSubscribedWhoCreated = return ["now"]
601eventSubscribedFan :: FanSubscribed x k v -> EventSubscribed x
621eventSubscribedFan :: FanSubscribed x k v -> EventSubscribed x
602eventSubscribedFan !subscribed = EventSubscribed
622eventSubscribedFan !subscribed = EventSubscribed
603 { eventSubscribedHeightRef = eventSubscribedHeightRef $ _eventSubscription_subscribed $ fanSubscribedParent subscribed
623 { eventSubscribedHeightRef = eventSubscribedHeightRef $ _eventSubscription_subscribed $ fanSubscribedParent subscribed
604 , eventSubscribedRetained = toAny subscribed
624 , eventSubscribedRetained = toAny subscribed
605#ifdef DEBUG_CYCLES
625#ifdef DEBUG_CYCLES
606− , eventSubscribedGetParents = return [Some $ _eventSubscription_subscribed $ fanSubscribedParent subscribed]
626+ , eventSubscribedGetParents = return [_eventSubscription_subscribed $ fanSubscribedParent subscribed]
607 , eventSubscribedHasOwnHeightRef = False
627 , eventSubscribedHasOwnHeightRef = False
608 , eventSubscribedWhoCreated = whoCreatedIORef $ fanSubscribedCachedSubscribed subscribed
628 , eventSubscribedWhoCreated = whoCreatedIORef $ fanSubscribedCachedSubscribed subscribed
@@ -616,7 +636,7 @@ eventSubscribedSwitch !subscribed = EventSubscribed
616#ifdef DEBUG_CYCLES
636#ifdef DEBUG_CYCLES
617 , eventSubscribedGetParents = do
637 , eventSubscribedGetParents = do
618 s <- readIORef $ switchSubscribedCurrentParent subscribed
638 s <- readIORef $ switchSubscribedCurrentParent subscribed
619− return [Some $ _eventSubscription_subscribed s]
639+ return [_eventSubscription_subscribed s]
620 , eventSubscribedHasOwnHeightRef = True
640 , eventSubscribedHasOwnHeightRef = True
621 , eventSubscribedWhoCreated = whoCreatedIORef $ switchSubscribedCachedSubscribed subscribed
641 , eventSubscribedWhoCreated = whoCreatedIORef $ switchSubscribedCachedSubscribed subscribed
@@ -629,8 +649,8 @@ eventSubscribedCoincidence !subscribed = EventSubscribed
629#ifdef DEBUG_CYCLES
649#ifdef DEBUG_CYCLES
630 , eventSubscribedGetParents = do
650 , eventSubscribedGetParents = do
631 innerSubscription <- readIORef $ coincidenceSubscribedInnerParent subscribed
651 innerSubscription <- readIORef $ coincidenceSubscribedInnerParent subscribed
632− let outerParent = Some $ _eventSubscription_subscribed $ coincidenceSubscribedOuterParent subscribed
652+ let outerParent = _eventSubscription_subscribed $ coincidenceSubscribedOuterParent subscribed
633− innerParents = maybeToList $ fmap Some innerSubscription
653+ innerParents = maybeToList $ innerSubscription
634 return $ outerParent : innerParents
654 return $ outerParent : innerParents
635 , eventSubscribedHasOwnHeightRef = True
655 , eventSubscribedHasOwnHeightRef = True
636 , eventSubscribedWhoCreated = whoCreatedIORef $ coincidenceSubscribedCachedSubscribed subscribed
656 , eventSubscribedWhoCreated = whoCreatedIORef $ coincidenceSubscribedCachedSubscribed subscribed
@@ -644,15 +664,15 @@ getEventSubscribedHeight es = readIORef $ eventSubscribedHeightRef es
644whoCreatedEventSubscribed :: EventSubscribed x -> IO [String]
664whoCreatedEventSubscribed :: EventSubscribed x -> IO [String]
645whoCreatedEventSubscribed = eventSubscribedWhoCreated
665whoCreatedEventSubscribed = eventSubscribedWhoCreated
647−walkInvalidHeightParents :: EventSubscribed x -> IO [Some (EventSubscribed x)]
667+walkInvalidHeightParents :: EventSubscribed x -> IO [EventSubscribed x]
648walkInvalidHeightParents s0 = do
668walkInvalidHeightParents s0 = do
649− subscribers <- flip execStateT mempty $ ($ Some s0) $ fix $ \loop (Some s) -> do
669+ subscribers <- flip execStateT mempty $ ($ s0) $ fix $ \loop s -> do
650 h <- liftIO $ readIORef $ eventSubscribedHeightRef s
670 h <- liftIO $ readIORef $ eventSubscribedHeightRef s
651 when (h == invalidHeight) $ do
671 when (h == invalidHeight) $ do
652 when (eventSubscribedHasOwnHeightRef s) $ liftIO $ writeIORef (eventSubscribedHeightRef s) $! invalidHeightBeingTraversed
672 when (eventSubscribedHasOwnHeightRef s) $ liftIO $ writeIORef (eventSubscribedHeightRef s) $! invalidHeightBeingTraversed
653− modify (Some s :)
673+ modify (s :)
654 mapM_ loop =<< liftIO (eventSubscribedGetParents s)
674 mapM_ loop =<< liftIO (eventSubscribedGetParents s)
655− forM_ subscribers $ \(Some s) -> writeIORef (eventSubscribedHeightRef s) $! invalidHeight
675+ forM_ subscribers $ \s -> writeIORef (eventSubscribedHeightRef s) $! invalidHeight
656 return subscribers
676 return subscribers
@@ -976,12 +996,8 @@ instance Monad (BehaviorM x) where
976 return x = BehaviorM $ return x
996 return x = BehaviorM $ return x
977#if !MIN_VERSION_base(4,13,0)
997#if !MIN_VERSION_base(4,13,0)
978 {-# INLINE fail #-}
998 {-# INLINE fail #-}
979− fail s = MonadFail.fail
982−instance MonadFail (SpiderHost x) where
983− {-# INLINABLE fail #-}
984 fail s = BehaviorM $ fail s
999 fail s = BehaviorM $ fail s
986data BehaviorSubscribed x a
1002data BehaviorSubscribed x a
987 = forall p. BehaviorSubscribedHold (Hold x p)
1003 = forall p. BehaviorSubscribedHold (Hold x p)
@@ -1041,7 +1057,7 @@ data SomeMergeUpdate x = SomeMergeUpdate
1041newtype SomeMergeInit x = SomeMergeInit { unSomeMergeInit :: EventM x () }
1057newtype SomeMergeInit x = SomeMergeInit { unSomeMergeInit :: EventM x () }
1043-- EventM can do everything BehaviorM can, plus create holds
1059-- EventM can do everything BehaviorM can, plus create holds
1044−newtype EventM x a = EventM { unEventM :: 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
1060+newtype EventM x a = EventM { unEventM :: IO a } deriving (Functor, Applicative, Monad, MonadIO, MonadFix, MonadException, MonadAsyncException)
1046newtype MergeSubscribedParent x a = MergeSubscribedParent { unMergeSubscribedParent :: EventSubscription x }
1062newtype MergeSubscribedParent x a = MergeSubscribedParent { unMergeSubscribedParent :: EventSubscription x }
@@ -1066,7 +1082,8 @@ heightBagFromList :: [Height] -> HeightBag
1066heightBagFromList heights = heightBagVerify $ foldl' (flip heightBagAdd) heightBagEmpty heights
1082heightBagFromList heights = heightBagVerify $ foldl' (flip heightBagAdd) heightBagEmpty heights
1068heightBagAdd :: Height -> HeightBag -> HeightBag
1084heightBagAdd :: Height -> HeightBag -> HeightBag
1069−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
1071heightBagRemove :: Height -> HeightBag -> HeightBag
1088heightBagRemove :: Height -> HeightBag -> HeightBag
1072heightBagRemove (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
@@ -1075,6 +1092,13 @@ heightBagRemove (Height h) b@(HeightBag s c) = heightBagVerify $ case IntMap.loo
1075 0 -> IntMap.delete h c
1092 0 -> IntMap.delete h c
1076 _ -> 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
1078heightBagMax :: HeightBag -> Height
1102heightBagMax :: HeightBag -> Height
1079heightBagMax (HeightBag _ c) = case IntMap.maxViewWithKey c of
1103heightBagMax (HeightBag _ c) = case IntMap.maxViewWithKey c of
1080 Just ((h, _), _) -> Height h
1104 Just ((h, _), _) -> Height h
@@ -1322,55 +1346,110 @@ mkWeakPtrWithDebug x debugNote = do
1322 x' <- evaluate x
1346 x' <- evaluate x
1323 mkWeakPtr x' $
1347 mkWeakPtr x' $
1324 if debugFinalize
1348 if debugFinalize
1325− then Just $ putStrLn $ "finalizing: " ++ debugNote
1349+ then Just $ debugStrLn $ "finalizing: " ++ debugNote
1326 else Nothing
1350 else Nothing
1328type WeakList a = [Weak a]
1352type WeakList a = [Weak a]
1330−{-# INLINE withIncreasedDepth #-}
1354+type CanTrace x m = (HasSpiderTimeline x, MonadIO m)
1331#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"
1332−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
1333−withIncreasedDepth a = do
1383+withIncreasedDepth _ a = do
1334− spiderTimeline <- askSpiderTimelineEnv
1335− liftIO $ modifyIORef' (_spiderTimeline_depth (unSTE spiderTimeline)) succ
1384+ liftIO $ modifyIORef' (_spiderTimeline_depth $ unSTE (spiderTimeline :: SpiderTimelineEnv x)) succ
1336 result <- a
1385 result <- a
1337− liftIO $ modifyIORef' (_spiderTimeline_depth (unSTE spiderTimeline)) pred
1386+ liftIO $ modifyIORef' (_spiderTimeline_depth $ unSTE (spiderTimeline :: SpiderTimelineEnv x)) pred
1338 return result
1387 return result
1340−withIncreasedDepth :: m a -> m a
1341−withIncreasedDepth = id
1344−type CanTrace x m = (HasSpiderTimeline x, MonadIO m)
1346{-# INLINE tracePropagate #-}
1389{-# INLINE tracePropagate #-}
1347tracePropagate :: (CanTrace x m) => proxy x -> String -> m ()
1390tracePropagate :: (CanTrace x m) => proxy x -> String -> m ()
1348−tracePropagate p = traceWhen p debugPropagate
1391+tracePropagate p = when debugPropagate . trace p
1350{-# INLINE traceInvalidate #-}
1393{-# INLINE traceInvalidate #-}
1351traceInvalidate :: String -> IO ()
1394traceInvalidate :: String -> IO ()
1352−traceInvalidate = when debugInvalidate . liftIO . putStrLn
1395+traceInvalidate = when debugInvalidate . liftIO . debugStrLn
1397+{-# INLINE traceInvalidateHeight #-}
1398+traceInvalidateHeight :: String -> IO ()
1399+traceInvalidateHeight = when debugInvalidateHeight . liftIO . debugStrLn
1354−{-# INLINE traceWhen #-}
1401+{-# INLINE trace #-}
1355−traceWhen :: (CanTrace x m) => proxy x -> Bool -> String -> m ()
1402+trace :: (CanTrace x m) => proxy x -> String -> m ()
1356−traceWhen p b message = traceMWhen p b $ return message
1403+trace p message = traceM p $ return message
1358−{-# INLINE traceMWhen #-}
1405+{-# INLINE traceM #-}
1359−traceMWhen :: (CanTrace x m) => proxy x -> Bool -> m String -> m ()
1406+traceM :: forall x proxy m. (CanTrace x m) => proxy x -> m String -> m ()
1360−traceMWhen _ b getMessage = when b $ do
1407+traceM _ getMessage = do
1361 message <- getMessage
1408 message <- getMessage
1363− spiderTimeline <- askSpiderTimelineEnv
1364− d <- liftIO $ readIORef $ _spiderTimeline_depth $ unSTE 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 ()
1368− liftIO $ putStrLn $ replicate d ' ' <> message
1370whoCreatedIORef :: IORef a -> IO [String]
1450whoCreatedIORef :: IORef a -> IO [String]
1371whoCreatedIORef (IORef a) = whoCreated $! a
1451whoCreatedIORef (IORef a) = whoCreated $! a
1374groupByHead :: Eq a => [NonEmpty a] -> [(a, NonEmpty [a])]
1453groupByHead :: Eq a => [NonEmpty a] -> [(a, NonEmpty [a])]
1375groupByHead = \case
1454groupByHead = \case
1376 [] -> []
1455 [] -> []
@@ -1381,20 +1460,54 @@ groupByHead = \case
1381 | otherwise -> (x, xs :| []) : l
1460 | otherwise -> (x, xs :| []) : l
1383listsToForest :: Eq a => [[a]] -> Forest a
1462listsToForest :: Eq a => [[a]] -> Forest a
1384−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"
1387{-# INLINE propagateSubscriberHold #-}
1498{-# INLINE propagateSubscriberHold #-}
1388propagateSubscriberHold :: forall x p. (HasSpiderTimeline x, Patch p) => Hold x p -> p -> EventM x ()
1499propagateSubscriberHold :: forall x p. (HasSpiderTimeline x, Patch p) => Hold x p -> p -> EventM x ()
1389propagateSubscriberHold h a = do
1500propagateSubscriberHold h a = do
1390− {-# SCC "trace" #-} traceMWhen (Proxy :: Proxy x) debugPropagate $ liftIO $ do
1501+ {-# SCC "trace" #-} when debugPropagate $ traceM (Proxy :: Proxy x) $ liftIO $ do
1391 invalidators <- liftIO $ readIORef $ holdInvalidators h
1502 invalidators <- liftIO $ readIORef $ holdInvalidators h
1392 return $ "SubscriberHold" <> showNodeId h <> ": " ++ show (length invalidators)
1503 return $ "SubscriberHold" <> showNodeId h <> ": " ++ show (length invalidators)
1393 v <- {-# SCC "read" #-} liftIO $ readIORef $ holdValue h
1505 v <- {-# SCC "read" #-} liftIO $ readIORef $ holdValue h
1394 case {-# SCC "apply" #-} apply a v of
1506 case {-# SCC "apply" #-} apply a v of
1395 Nothing -> return ()
1507 Nothing -> return ()
1396 Just v' -> do
1508 Just v' -> do
1509+ {-# SCC "trace2" #-} withIncreasedDepth (Proxy :: Proxy x) $
1397− {-# SCC "trace2" #-} withIncreasedDepth $ tracePropagate (Proxy :: Proxy x) $ "propagateSubscriberHold: assigning Hold" <> showNodeId h
1510+ tracePropagate (Proxy :: Proxy x) ("propagateSubscriberHold: assigning Hold" <> showNodeId h)
1398 vRef <- {-# SCC "vRef" #-} liftIO $ evaluate $ holdValue h
1511 vRef <- {-# SCC "vRef" #-} liftIO $ evaluate $ holdValue h
1399 iRef <- {-# SCC "iRef" #-} liftIO $ evaluate $ holdInvalidators h
1512 iRef <- {-# SCC "iRef" #-} liftIO $ evaluate $ holdInvalidators h
1400 defer $ {-# SCC "assignment" #-} SomeAssignment vRef iRef v'
1513 defer $ {-# SCC "assignment" #-} SomeAssignment vRef iRef v'
@@ -1448,7 +1561,7 @@ getDynHold d = do
1448zeroRef :: IORef Height
1561zeroRef :: IORef Height
1449zeroRef = unsafePerformIO $ newIORef zeroHeight
1562zeroRef = unsafePerformIO $ newIORef zeroHeight
1451−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)
1452getRootSubscribed k r sub = do
1565getRootSubscribed k r sub = do
1453 mSubscribed <- readIORef $ rootSubscribed r
1566 mSubscribed <- readIORef $ rootSubscribed r
1454 let getOcc = fmap (coerce . DMap.lookup k) $ readIORef $ rootOccurrence r
1567 let getOcc = fmap (coerce . DMap.lookup k) $ readIORef $ rootOccurrence r
@@ -1462,7 +1575,9 @@ getRootSubscribed k r sub = do
1462 let !cached = rootSubscribed r
1575 let !cached = rootSubscribed r
1463 uninitRef <- newIORef $ error "getRootsubscribed: uninitRef not initialized"
1576 uninitRef <- newIORef $ error "getRootsubscribed: uninitRef not initialized"
1464 (subs, sln) <- WeakBag.singleton sub weakSelf cleanupRootSubscribed
1577 (subs, sln) <- WeakBag.singleton sub weakSelf cleanupRootSubscribed
1465− when debugPropagate $ putStrLn $ "getRootSubscribed: calling rootInit"
1579+ tracePropagate (Proxy::Proxy x) $ "getRootSubscribed: calling rootInit"
1466 uninit <- rootInit r k $ RootTrigger (subs, rootOccurrence r, k)
1581 uninit <- rootInit r k $ RootTrigger (subs, rootOccurrence r, k)
1467 writeIORef uninitRef $! uninit
1582 writeIORef uninitRef $! uninit
1468#ifdef DEBUG_NODEIDS
1583#ifdef DEBUG_NODEIDS
@@ -1512,6 +1627,9 @@ data FanInt x a = FanInt
1512 { _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
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
1513 , _fanInt_subscriptionRef :: {-# UNPACK #-} !(IORef (EventSubscription x)) -- This should have a valid subscription iff subscribers is non-empty
1628 , _fanInt_subscriptionRef :: {-# UNPACK #-} !(IORef (EventSubscription x)) -- This should have a valid subscription iff subscribers is non-empty
1514 , _fanInt_occRef :: {-# UNPACK #-} !(IORef (IntMap a))
1629 , _fanInt_occRef :: {-# UNPACK #-} !(IORef (IntMap a))
1630+#ifdef DEBUG_NODEIDS
1631+ , _fanInt_nodeId :: {-# UNPACK #-} !Int
1517newFanInt :: IO (FanInt x a)
1635newFanInt :: IO (FanInt x a)
@@ -1519,10 +1637,16 @@ newFanInt = do
1519 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
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
1520 subscriptionRef <- newIORef $ error "fanInt: no subscription"
1638 subscriptionRef <- newIORef $ error "fanInt: no subscription"
1521 occRef <- newIORef $ error "fanInt: no occurrence"
1639 occRef <- newIORef $ error "fanInt: no occurrence"
1640+#ifdef DEBUG_NODEIDS
1641+ nodeId <- newNodeId
1522 return $ FanInt
1643 return $ FanInt
1523 { _fanInt_subscribers = subscribers
1644 { _fanInt_subscribers = subscribers
1524 , _fanInt_subscriptionRef = subscriptionRef
1645 , _fanInt_subscriptionRef = subscriptionRef
1525 , _fanInt_occRef = occRef
1646 , _fanInt_occRef = occRef
1647+#ifdef DEBUG_NODEIDS
1648+ , _fanInt_nodeId = nodeId
1528fanInt :: HasSpiderTimeline x => Event x (IntMap a) -> EventSelectorInt x a
1652fanInt :: HasSpiderTimeline x => Event x (IntMap a) -> EventSelectorInt x a
@@ -1531,20 +1655,21 @@ fanInt p = unsafePerformIO $ do
1531 pure $ EventSelectorInt $ \k -> Event $ \sub -> do
1655 pure $ EventSelectorInt $ \k -> Event $ \sub -> do
1532 isEmpty <- liftIO $ FastMutableIntMap.isEmpty (_fanInt_subscribers self)
1656 isEmpty <- liftIO $ FastMutableIntMap.isEmpty (_fanInt_subscribers self)
1533 when isEmpty $ do -- This is the first subscriber, so we need to subscribe to our input
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
1534− (subscription, parentOcc) <- subscribeAndRead p $ Subscriber
1659+ (subscription, parentOcc) <- subscribeAndRead p $ debugSubscriber' desc $ Subscriber
1535 { subscriberPropagate = \m -> do
1660 { subscriberPropagate = \m -> do
1536 liftIO $ writeIORef (_fanInt_occRef self) m
1661 liftIO $ writeIORef (_fanInt_occRef self) m
1537 scheduleIntClear $ _fanInt_occRef self
1662 scheduleIntClear $ _fanInt_occRef self
1538− FastMutableIntMap.forIntersectionWithImmutable_ (_fanInt_subscribers self) m $ \b v -> do --TODO: Do we need to know that no subscribers are being added as we traverse?
1663+ FastMutableIntMap.forIntersectionWithImmutable_ (_fanInt_subscribers self) m $ \b v -> --TODO: Do we need to know that no subscribers are being added as we traverse?
1539− FastWeakBag.traverse_ b $ \s -> do
1664+ FastWeakBag.traverse_ b $ \s ->
1540 subscriberPropagate s v
1665 subscriberPropagate s v
1541− , subscriberInvalidateHeight = \old -> do
1666+ , subscriberInvalidateHeight = \old ->
1542− FastMutableIntMap.for_ (_fanInt_subscribers self) $ \b -> do
1667+ FastMutableIntMap.for_ (_fanInt_subscribers self) $ \b ->
1543− FastWeakBag.traverse_ b $ \s -> do
1668+ FastWeakBag.traverse_ b $ \s ->
1544 subscriberInvalidateHeight s old
1669 subscriberInvalidateHeight s old
1545− , subscriberRecalculateHeight = \new -> do
1670+ , subscriberRecalculateHeight = \new ->
1546− FastMutableIntMap.for_ (_fanInt_subscribers self) $ \b -> do
1671+ FastMutableIntMap.for_ (_fanInt_subscribers self) $ \b ->
1547− FastWeakBag.traverse_ b $ \s -> do
1672+ FastWeakBag.traverse_ b $ \s ->
1548 subscriberRecalculateHeight s new
1673 subscriberRecalculateHeight s new
1550 liftIO $ do
1675 liftIO $ do
@@ -1558,10 +1683,25 @@ fanInt p = unsafePerformIO $ do
1558 FastMutableIntMap.insert (_fanInt_subscribers self) k b
1683 FastMutableIntMap.insert (_fanInt_subscribers self) k b
1559 return b
1684 return b
1560 Just b -> return b
1685 Just b -> return b
1561− t <- liftIO $ FastWeakBag.insert sub b
1686+ ticket <- liftIO $ FastWeakBag.insert sub b
1562 currentOcc <- readIORef (_fanInt_occRef self)
1687 currentOcc <- readIORef (_fanInt_occRef self)
1563− (EventSubscription _ (EventSubscribed !heightRef _)) <- readIORef (_fanInt_subscriptionRef self)
1688+
1689+ subscribed <- fanIntSubscribed ticket self
1564− return (EventSubscription (FastWeakBag.remove t) $! EventSubscribed heightRef $! toAny (_fanInt_subscriptionRef self, t), IntMap.lookup k currentOcc)
1690+ return (EventSubscription (FastWeakBag.remove ticket) subscribed, IntMap.lookup k currentOcc)
1692+fanIntSubscribed :: FastWeakBagTicket k -> FanInt x a -> IO (EventSubscribed x)
1693+fanIntSubscribed ticket self = do
1694+ subscribedParent <- _eventSubscription_subscribed <$> 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
1566{-# INLINABLE getFanSubscribed #-}
1706{-# INLINABLE getFanSubscribed #-}
1567getFanSubscribed :: (HasSpiderTimeline x, GCompare k) => k a -> Fan x k v -> Subscriber x (v a) -> EventM x (WeakBagTicket, FanSubscribed x k v, Maybe (v a))
1707getFanSubscribed :: (HasSpiderTimeline x, GCompare k) => k a -> Fan x k v -> Subscriber x (v a) -> EventM x (WeakBagTicket, FanSubscribed x k v, Maybe (v a))
@@ -1759,7 +1899,7 @@ mergeCheap
1759 => (forall a. q a -> Event x (v a))
1899 => (forall a. q a -> Event x (v a))
1760 -> DynamicS x (PatchDMap k q)
1900 -> DynamicS x (PatchDMap k q)
1761 -> Event x (DMap k v)
1901 -> Event x (DMap k v)
1762−mergeCheap nt = mergeGCheap' getInitialSubscribers updateMe destroy
1902+mergeCheap nt = mergeGCheap' unMergeSubscribedParent getInitialSubscribers updateMe destroy
1764 updateMe :: MergeUpdateFunc k v x (PatchDMap k q) (MergeSubscribedParent x)
1904 updateMe :: MergeUpdateFunc k v x (PatchDMap k q) (MergeSubscribedParent x)
1765 updateMe subscriber heightBagRef oldParents (PatchDMap p) = do
1905 updateMe subscriber heightBagRef oldParents (PatchDMap p) = do
@@ -1774,7 +1914,9 @@ mergeCheap nt = mergeGCheap' getInitialSubscribers updateMe destroy
1774 liftIO $ modifyIORef' heightBagRef $ heightBagAdd newParentHeight
1914 liftIO $ modifyIORef' heightBagRef $ heightBagAdd newParentHeight
1775 return $ DMap.insertLookupWithKey' (\_ new _ -> new) k newParent ps
1915 return $ DMap.insertLookupWithKey' (\_ new _ -> new) k newParent ps
1776 forM_ mOldSubd $ \oldSubd -> do
1916 forM_ mOldSubd $ \oldSubd -> do
1917+ oldHeight <- liftIO $ getEventSubscribedHeight $
1777− oldHeight <- liftIO $ getEventSubscribedHeight $ _eventSubscription_subscribed $ unMergeSubscribedParent oldSubd
1918+ _eventSubscription_subscribed $ unMergeSubscribedParent oldSubd
1778 liftIO $ modifyIORef heightBagRef $ heightBagRemove oldHeight
1920 liftIO $ modifyIORef heightBagRef $ heightBagRemove oldHeight
1779 return (maybeToList (unMergeSubscribedParent <$> mOldSubd) ++ subscriptionsToKill, newPs)
1921 return (maybeToList (unMergeSubscribedParent <$> mOldSubd) ++ subscriptionsToKill, newPs)
1780 foldM f ([], oldParents) $ DMap.toList p
1922 foldM f ([], oldParents) $ DMap.toList p
@@ -1799,7 +1941,7 @@ mergeCheapWithMove :: forall k x v q. (HasSpiderTimeline x, GCompare k)
1799 => (forall a. q a -> Event x (v a))
1941 => (forall a. q a -> Event x (v a))
1800 -> DynamicS x (PatchDMapWithMove k q)
1942 -> DynamicS x (PatchDMapWithMove k q)
1801 -> Event x (DMap k v)
1943 -> Event x (DMap k v)
1802−mergeCheapWithMove nt = mergeGCheap' getInitialSubscribers updateMe destroy
1944+mergeCheapWithMove nt = mergeGCheap' _mergeSubscribedParentWithMove_subscription getInitialSubscribers updateMe destroy
1804 updateMe :: MergeUpdateFunc k v x (PatchDMapWithMove k q) (MergeSubscribedParentWithMove x k)
1946 updateMe :: MergeUpdateFunc k v x (PatchDMapWithMove k q) (MergeSubscribedParentWithMove x k)
1805 updateMe subscriber heightBagRef oldParents p = do
1947 updateMe subscriber heightBagRef oldParents p = do
@@ -1818,13 +1960,17 @@ mergeCheapWithMove nt = mergeGCheap' getInitialSubscribers updateMe destroy
1818 let moveOrDelete :: forall a. k a -> PatchDMapWithMove.NodeInfo k q a -> MergeSubscribedParentWithMove x k a -> Constant (EventM x (Maybe (EventSubscription x))) a
1960 let moveOrDelete :: forall a. k a -> PatchDMapWithMove.NodeInfo k q a -> MergeSubscribedParentWithMove x k a -> Constant (EventM x (Maybe (EventSubscription x))) a
1819 moveOrDelete _ ni parent = Constant $ case getComposeMaybe $ PatchDMapWithMove._nodeInfo_to ni of
1961 moveOrDelete _ ni parent = Constant $ case getComposeMaybe $ PatchDMapWithMove._nodeInfo_to ni of
1820 Nothing -> do
1962 Nothing -> do
1821− oldHeight <- liftIO $ getEventSubscribedHeight $ _eventSubscription_subscribed $ _mergeSubscribedParentWithMove_subscription parent
1963+ oldHeight <- liftIO $ getEventSubscribedHeight $ _eventSubscription_subscribed $
1964+ _mergeSubscribedParentWithMove_subscription parent
1822 liftIO $ modifyIORef heightBagRef $ heightBagRemove oldHeight
1966 liftIO $ modifyIORef heightBagRef $ heightBagRemove oldHeight
1823 return $ Just $ _mergeSubscribedParentWithMove_subscription parent
1967 return $ Just $ _mergeSubscribedParentWithMove_subscription parent
1824 Just toKey -> do
1968 Just toKey -> do
1825 liftIO $ writeIORef (_mergeSubscribedParentWithMove_key parent) $! toKey
1969 liftIO $ writeIORef (_mergeSubscribedParentWithMove_key parent) $! toKey
1826 return Nothing
1970 return Nothing
1971+ toDelete <- fmap catMaybes $ mapM (\(_ :=> v) -> getConstant v) $ DMap.toList $
1827− toDelete <- fmap catMaybes $ mapM (\(_ :=> v) -> getConstant v) $ DMap.toList $ DMap.intersectionWithKey moveOrDelete (unPatchDMapWithMove p) oldParents
1972+ DMap.intersectionWithKey moveOrDelete (unPatchDMapWithMove p) oldParents
1828 return (toDelete, applyAlways p' oldParents)
1974 return (toDelete, applyAlways p' oldParents)
1829 getInitialSubscribers :: MergeInitFunc k v q x (MergeSubscribedParentWithMove x k)
1975 getInitialSubscribers :: MergeInitFunc k v q x (MergeSubscribedParentWithMove x k)
1830 getInitialSubscribers initialParents subscriber = do
1976 getInitialSubscribers initialParents subscriber = do
@@ -1849,6 +1995,8 @@ type MergeUpdateFunc k v x p s
1850 -> EventM x ([EventSubscription x], DMap k s)
1996 -> EventM x ([EventSubscription x], DMap k s)
1998+type MergeGetSubscription x s = forall a. s a -> EventSubscription x
1852type MergeInitFunc k v q x s
2000type MergeInitFunc k v q x s
1853 = DMap k q
2001 = DMap k q
1854 -> (forall a. EventM x (k a) -> Subscriber x (v a))
2002 -> (forall a. EventM x (k a) -> Subscriber x (v a))
@@ -1872,14 +2020,17 @@ invalidateMergeHeight m = invalidateMergeHeight' (_merge_heightRef m) (_merge_su
1872invalidateMergeHeight' :: IORef Height -> Subscriber x a -> IO ()
2020invalidateMergeHeight' :: IORef Height -> Subscriber x a -> IO ()
1873invalidateMergeHeight' heightRef sub = do
2021invalidateMergeHeight' heightRef sub = do
1874 oldHeight <- readIORef heightRef
2022 oldHeight <- readIORef heightRef
1875− when (oldHeight /= invalidHeight) $ do -- If the height used to be valid, it must be invalid now; we should never have *more* heights than we have parents
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
1876 writeIORef heightRef $! invalidHeight
2025 writeIORef heightRef $! invalidHeight
1877 subscriberInvalidateHeight sub oldHeight
2026 subscriberInvalidateHeight sub oldHeight
1879revalidateMergeHeight :: Merge x k v s -> IO ()
2028revalidateMergeHeight :: Merge x k v s -> IO ()
1880revalidateMergeHeight m = do
2029revalidateMergeHeight m = do
1881 currentHeight <- readIORef $ _merge_heightRef m
2030 currentHeight <- readIORef $ _merge_heightRef m
1882− when (currentHeight == invalidHeight) $ do -- revalidateMergeHeight may be called multiple times; perhaps the's a way to finesse it to avoid this check
2032+ -- revalidateMergeHeight may be called multiple times; perhaps the's a way to finesse it to avoid this check
2033+ when (currentHeight == invalidHeight) $ do
1883 heights <- readIORef $ _merge_heightBagRef m
2034 heights <- readIORef $ _merge_heightBagRef m
1884 parents <- readIORef $ _merge_parentsRef m
2035 parents <- readIORef $ _merge_parentsRef m
1885 -- When the number of heights in the bag reaches the number of parents, we should have a valid height
2036 -- When the number of heights in the bag reaches the number of parents, we should have a valid height
@@ -1887,7 +2038,7 @@ revalidateMergeHeight m = do
1887 LT -> return ()
2038 LT -> return ()
1888 EQ -> do
2039 EQ -> do
1889 let height = succHeight $ heightBagMax heights
2040 let height = succHeight $ heightBagMax heights
1890− when debugInvalidateHeight $ putStrLn $ "recalculateSubscriberHeight: height: " <> show height
2041+ traceInvalidateHeight $ "recalculateSubscriberHeight: height: " <> show height
1891 writeIORef (_merge_heightRef m) $! height
2042 writeIORef (_merge_heightRef m) $! height
1892 subscriberRecalculateHeight (_merge_sub m) height
2043 subscriberRecalculateHeight (_merge_sub m) height
1893 GT -> error $ "revalidateMergeHeight: more heights (" <> show (heightBagSize heights) <> ") than parents (" <> show (DMap.size parents) <> ") for Merge"
2044 GT -> error $ "revalidateMergeHeight: more heights (" <> show (heightBagSize heights) <> ") than parents (" <> show (DMap.size parents) <> ") for Merge"
@@ -1895,36 +2046,45 @@ revalidateMergeHeight m = do
1895scheduleMergeSelf :: HasSpiderTimeline x => Merge x k v s -> Height -> EventM x ()
2046scheduleMergeSelf :: HasSpiderTimeline x => Merge x k v s -> Height -> EventM x ()
1896scheduleMergeSelf m height = scheduleMerge' height (_merge_heightRef m) $ do
2047scheduleMergeSelf m height = scheduleMerge' height (_merge_heightRef m) $ do
1897 vals <- liftIO $ readIORef $ _merge_accumRef m
2048 vals <- liftIO $ readIORef $ _merge_accumRef m
1898− liftIO $ writeIORef (_merge_accumRef m) $! DMap.empty -- Once we're done with this, we can clear it immediately, because if there's a cacheEvent in front of us, it'll handle subsequent subscribers, and if not, we won't get subsequent subscribers
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
1899 --TODO: Assert that m is not empty
2052 --TODO: Assert that m is not empty
1900 subscriberPropagate (_merge_sub m) vals
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
1902−mergeSubscriber :: forall x k v s a. (HasSpiderTimeline x, GCompare k) => Merge x k v s -> EventM x (k a) -> Subscriber x (v a)
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)
1903−mergeSubscriber m getKey = Subscriber
2077+mergeSubscriber subscribed m getKey = Subscriber
1904 { subscriberPropagate = \a -> do
2078 { subscriberPropagate = \a -> do
1905 oldM <- liftIO $ readIORef $ _merge_accumRef m
2079 oldM <- liftIO $ readIORef $ _merge_accumRef m
1906 k <- getKey
2080 k <- getKey
1907− let newM = DMap.insertWith (error $ "Same key fired multiple times for Merge") k a oldM
2081+ let newM = DMap.insertWith (error "Same key fired multiple times for Merge") k a oldM
1908 tracePropagate (Proxy :: Proxy x) $ " DMap.size oldM = " <> show (DMap.size oldM) <> "; DMap.size newM = " <> show (DMap.size newM)
2082 tracePropagate (Proxy :: Proxy x) $ " DMap.size oldM = " <> show (DMap.size oldM) <> "; DMap.size newM = " <> show (DMap.size newM)
1909 liftIO $ writeIORef (_merge_accumRef m) $! newM
2083 liftIO $ writeIORef (_merge_accumRef m) $! newM
1910 when (DMap.null oldM) $ do -- Only schedule the firing once
2084 when (DMap.null oldM) $ do -- Only schedule the firing once
1911 height <- liftIO $ readIORef $ _merge_heightRef m
2085 height <- liftIO $ readIORef $ _merge_heightRef m
1912− --TODO: assertions about height
2086+ checkCycle subscribed
1913− currentHeight <- getCurrentHeight
2087+
1914− when (height <= currentHeight) $ do
1915− if height /= invalidHeight
1917− myStack <- liftIO $ whoCreatedIORef undefined --TODO
1918− error $ "Height (" ++ show height ++ ") is not greater than current height (" ++ show currentHeight ++ ")\n" ++ unlines (reverse myStack)
1921− nodesInvolvedInCycle <- walkInvalidHeightParents $ eventSubscribedMerge subscribed
1922− stacks <- forM nodesInvolvedInCycle $ \(Some es) -> whoCreatedEventSubscribed es
1923− let cycleInfo = ":\n" <> drawForest (listsToForest stacks)
1927− error $ "Causality loop found" <> cycleInfo
1928 scheduleMergeSelf m height
2088 scheduleMergeSelf m height
1929 , subscriberInvalidateHeight = \old -> do --TODO: When removing a parent doesn't actually change the height, maybe we can avoid invalidating
2089 , subscriberInvalidateHeight = \old -> do --TODO: When removing a parent doesn't actually change the height, maybe we can avoid invalidating
1930 modifyIORef' (_merge_heightBagRef m) $ heightBagRemove old
2090 modifyIORef' (_merge_heightBagRef m) $ heightBagRemove old
@@ -1935,31 +2095,45 @@ mergeSubscriber m getKey = Subscriber
1937--TODO: Be able to run as much of this as possible promptly
2097--TODO: Be able to run as much of this as possible promptly
1938−updateMerge :: (HasSpiderTimeline x, GCompare k) => Merge x k v s -> MergeUpdateFunc k v x p s -> p -> SomeMergeUpdate x
2098+updateMerge :: (HasSpiderTimeline x, GCompare k) => EventSubscribed x -> Merge x k v s -> MergeUpdateFunc k v x p s -> p -> SomeMergeUpdate x
1939−updateMerge m updateFunc p = SomeMergeUpdate updateMe (invalidateMergeHeight m) (revalidateMergeHeight m)
2099+updateMerge subscribed m updateFunc p = SomeMergeUpdate updateMe (invalidateMergeHeight m) (revalidateMergeHeight m)
1940 where updateMe = do
2100 where updateMe = do
1941 oldParents <- liftIO $ readIORef $ _merge_parentsRef m
2101 oldParents <- liftIO $ readIORef $ _merge_parentsRef m
1942− (subscriptionsToKill, newParents) <- updateFunc (mergeSubscriber m) (_merge_heightBagRef m) oldParents p
2102+ (subscriptionsToKill, newParents) <- updateFunc (mergeSubscriber subscribed m) (_merge_heightBagRef m) oldParents p
1943 liftIO $ writeIORef (_merge_parentsRef m) $! newParents
2103 liftIO $ writeIORef (_merge_parentsRef m) $! newParents
1944 return subscriptionsToKill
2104 return subscriptionsToKill
1946{-# INLINE mergeGCheap' #-}
2106{-# INLINE mergeGCheap' #-}
1947mergeGCheap' :: forall k v x p s q. (HasSpiderTimeline x, GCompare k, PatchTarget p ~ DMap k q)
2107mergeGCheap' :: forall k v x p s q. (HasSpiderTimeline x, GCompare k, PatchTarget p ~ DMap k q)
1948− => MergeInitFunc k v q x s -> MergeUpdateFunc k v x p s -> MergeDestroyFunc k s -> DynamicS x p -> Event x (DMap k v)
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)
1949−mergeGCheap' getInitialSubscribers updateFunc destroy d = Event $ \sub -> do
2109+mergeGCheap' getParent getInitialSubscribers updateFunc destroy d = Event $ \sub -> do
1950 initialParents <- readBehaviorUntracked $ dynamicCurrent d
2110 initialParents <- readBehaviorUntracked $ dynamicCurrent d
1951 accumRef <- liftIO $ newIORef $ error "merge: accumRef not yet initialized"
2111 accumRef <- liftIO $ newIORef $ error "merge: accumRef not yet initialized"
1952 heightRef <- liftIO $ newIORef $ error "merge: heightRef not yet initialized"
2112 heightRef <- liftIO $ newIORef $ error "merge: heightRef not yet initialized"
1953 heightBagRef <- liftIO $ newIORef $ error "merge: heightBagRef not yet initialized"
2113 heightBagRef <- liftIO $ newIORef $ error "merge: heightBagRef not yet initialized"
1954 parentsRef :: IORef (DMap k s) <- liftIO $ newIORef $ error "merge: parentsRef 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
1955− let m = Merge
2129+ m = Merge
1956 { _merge_parentsRef = parentsRef
2130 { _merge_parentsRef = parentsRef
1957 , _merge_heightBagRef = heightBagRef
2131 , _merge_heightBagRef = heightBagRef
1958 , _merge_heightRef = heightRef
2132 , _merge_heightRef = heightRef
1959 , _merge_sub = sub
2133 , _merge_sub = sub
1960 , _merge_accumRef = accumRef
2134 , _merge_accumRef = accumRef
1962− (dm, heights, initialParentState) <- getInitialSubscribers initialParents $ mergeSubscriber m
2136+ (dm, heights, initialParentState) <- getInitialSubscribers initialParents $ mergeSubscriber subscribed m
1963 let myHeightBag = heightBagFromList $ filter (/= invalidHeight) heights
2137 let myHeightBag = heightBagFromList $ filter (/= invalidHeight) heights
1964 myHeight = if invalidHeight `elem` heights
2138 myHeight = if invalidHeight `elem` heights
1965 then invalidHeight
2139 then invalidHeight
@@ -1968,31 +2142,29 @@ mergeGCheap' getInitialSubscribers updateFunc destroy d = Event $ \sub -> do
1968 let (occ, accum) = if currentHeight >= myHeight -- If we should have fired by now
2142 let (occ, accum) = if currentHeight >= myHeight -- If we should have fired by now
1969 then (if DMap.null dm then Nothing else Just dm, DMap.empty)
2143 then (if DMap.null dm then Nothing else Just dm, DMap.empty)
1970 else (Nothing, dm)
2144 else (Nothing, dm)
1971− unless (DMap.null accum) $ do
1972− scheduleMergeSelf m myHeight
2145+ unless (DMap.null accum) $ scheduleMergeSelf m myHeight
1973 liftIO $ writeIORef accumRef $! accum
2146 liftIO $ writeIORef accumRef $! accum
1974 liftIO $ writeIORef heightRef $! myHeight
2147 liftIO $ writeIORef heightRef $! myHeight
1975 liftIO $ writeIORef heightBagRef $! myHeightBag
2148 liftIO $ writeIORef heightBagRef $! myHeightBag
1976− changeSubdRef <- liftIO $ newIORef $ error "getMergeSubscribed: changeSubdRef not yet initialized"
1977 liftIO $ writeIORef parentsRef $! initialParentState
2149 liftIO $ writeIORef parentsRef $! initialParentState
1978 defer $ SomeMergeInit $ do
2150 defer $ SomeMergeInit $ do
1979− let s = Subscriber
2151+ let changeSubscriber = Subscriber
1980 { subscriberPropagate = \a -> {-# SCC "traverseMergeChange" #-} do
2152 { subscriberPropagate = \a -> {-# SCC "traverseMergeChange" #-} do
1981− tracePropagate (Proxy :: Proxy x) $ "SubscriberMerge/Change"
2153+ tracePropagate (Proxy :: Proxy x) "SubscriberMerge/Change"
1982− defer $ updateMerge m updateFunc a
2154+ defer $ updateMerge subscribed m updateFunc a
1983 , subscriberInvalidateHeight = \_ -> return ()
2155 , subscriberInvalidateHeight = \_ -> return ()
1984 , subscriberRecalculateHeight = \_ -> return ()
2156 , subscriberRecalculateHeight = \_ -> return ()
1986− (changeSubscription, change) <- subscribeAndRead (dynamicUpdated d) s
2158+ (changeSubscription, change) <- subscribeAndRead (dynamicUpdated d) changeSubscriber
1987− forM_ change $ \c -> defer $ updateMerge m updateFunc c
2159+ forM_ change $ \c -> defer $ updateMerge subscribed m updateFunc c
1988 -- We explicitly hold on to the unsubscribe function from subscribing to the update event.
2160 -- We explicitly hold on to the unsubscribe function from subscribing to the update event.
1989 -- If we don't do this, there are certain cases where mergeCheap will fail to properly retain
2161 -- If we don't do this, there are certain cases where mergeCheap will fail to properly retain
1990 -- its subscription.
2162 -- its subscription.
1991− liftIO $ writeIORef changeSubdRef (s, changeSubscription)
2163+ liftIO $ writeIORef changeSubdRef (changeSubscriber, changeSubscription)
1992 let unsubscribeAll = destroy =<< readIORef parentsRef
2164 let unsubscribeAll = destroy =<< readIORef parentsRef
1993− return ( EventSubscription unsubscribeAll $ EventSubscribed heightRef $ toAny (parentsRef, changeSubdRef)
2166+ return (EventSubscription unsubscribeAll subscribed, occ)
1997mergeInt :: forall x a. (HasSpiderTimeline x) => DynamicS x (PatchIntMap (Event x a)) -> Event x (IntMap a)
2169mergeInt :: forall x a. (HasSpiderTimeline x) => DynamicS x (PatchIntMap (Event x a)) -> Event x (IntMap a)
1998mergeInt = cacheEvent . mergeIntCheap
2170mergeInt = cacheEvent . mergeIntCheap
@@ -2005,13 +2177,22 @@ mergeIntCheap d = Event $ \sub -> do
2005 heightRef <- liftIO $ newIORef zeroHeight
2177 heightRef <- liftIO $ newIORef zeroHeight
2006 heightBagRef <- liftIO $ newIORef heightBagEmpty
2178 heightBagRef <- liftIO $ newIORef heightBagEmpty
2007 parents <- liftIO $ FastMutableIntMap.newEmpty
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
2008 let scheduleSelf = do
2190 let scheduleSelf = do
2009 height <- liftIO $ readIORef $ heightRef
2191 height <- liftIO $ readIORef $ heightRef
2010 scheduleMerge' height heightRef $ do
2192 scheduleMerge' height heightRef $ do
2011 vals <- liftIO $ FastMutableIntMap.getFrozenAndClear accum
2193 vals <- liftIO $ FastMutableIntMap.getFrozenAndClear accum
2012 subscriberPropagate sub vals
2194 subscriberPropagate sub vals
2013− invalidateMyHeight = do
2014− invalidateMergeHeight' heightRef sub
2195+ invalidateMyHeight = invalidateMergeHeight' heightRef sub
2015 recalculateMyHeight = do
2196 recalculateMyHeight = do
2016 currentHeight <- readIORef heightRef
2197 currentHeight <- readIORef heightRef
2017 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?
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?
@@ -2021,12 +2202,14 @@ mergeIntCheap d = Event $ \sub -> do
2021 LT -> return ()
2202 LT -> return ()
2022 EQ -> do
2203 EQ -> do
2023 let height = succHeight $ heightBagMax heights
2204 let height = succHeight $ heightBagMax heights
2024− when debugInvalidateHeight $ putStrLn $ "recalculateSubscriberHeight: height: " <> show height
2205+ traceInvalidateHeight $ "recalculateSubscriberHeight: height: " <> show height
2025 writeIORef heightRef $! height
2206 writeIORef heightRef $! height
2026 subscriberRecalculateHeight sub height
2207 subscriberRecalculateHeight sub height
2027 GT -> error $ "revalidateMergeHeight: more heights (" <> show (heightBagSize heights) <> ") than parents (" <> show numParents <> ") for Merge"
2208 GT -> error $ "revalidateMergeHeight: more heights (" <> show (heightBagSize heights) <> ") than parents (" <> show numParents <> ") for Merge"
2028 mySubscriber k = Subscriber
2209 mySubscriber k = Subscriber
2029 { subscriberPropagate = \a -> do
2210 { subscriberPropagate = \a -> do
2211+ checkCycle subscribed
2030 wasEmpty <- liftIO $ FastMutableIntMap.isEmpty accum
2213 wasEmpty <- liftIO $ FastMutableIntMap.isEmpty accum
2031 liftIO $ FastMutableIntMap.insert accum k a
2214 liftIO $ FastMutableIntMap.insert accum k a
2032 when wasEmpty scheduleSelf
2215 when wasEmpty scheduleSelf
@@ -2060,7 +2243,6 @@ mergeIntCheap d = Event $ \sub -> do
2060 else liftIO $ Just <$> FastMutableIntMap.getFrozenAndClear accum
2243 else liftIO $ Just <$> FastMutableIntMap.getFrozenAndClear accum
2061 else do when (not isEmpty) scheduleSelf -- We have things accumulated, but we shouldn't have fired them yet
2244 else do when (not isEmpty) scheduleSelf -- We have things accumulated, but we shouldn't have fired them yet
2062 return Nothing
2245 return Nothing
2063− changeSubdRef <- liftIO $ newIORef $ error "getMergeSubscribed: changeSubdRef not yet initialized"
2064 defer $ SomeMergeInit $ do
2246 defer $ SomeMergeInit $ do
2065 let updateMe a = SomeMergeUpdate u invalidateMyHeight recalculateMyHeight
2247 let updateMe a = SomeMergeUpdate u invalidateMyHeight recalculateMyHeight
@@ -2074,25 +2256,27 @@ mergeIntCheap d = Event $ \sub -> do
2074 oldParents <- liftIO $ FastMutableIntMap.applyPatch parents newSubscriptions
2256 oldParents <- liftIO $ FastMutableIntMap.applyPatch parents newSubscriptions
2075 liftIO $ for_ oldParents $ \oldParent -> do
2257 liftIO $ for_ oldParents $ \oldParent -> do
2076 oldParentHeight <- getEventSubscribedHeight $ _eventSubscription_subscribed oldParent
2258 oldParentHeight <- getEventSubscribedHeight $ _eventSubscription_subscribed oldParent
2260+ print ("updateMe", oldParentHeight)
2077 modifyIORef' heightBagRef $ heightBagRemove oldParentHeight
2261 modifyIORef' heightBagRef $ heightBagRemove oldParentHeight
2078 return $ IntMap.elems oldParents
2262 return $ IntMap.elems oldParents
2079− let s = Subscriber
2263+ let changeSubscriber = Subscriber
2080 { subscriberPropagate = \a -> {-# SCC "traverseMergeChange" #-} do
2264 { subscriberPropagate = \a -> {-# SCC "traverseMergeChange" #-} do
2081 tracePropagate (Proxy :: Proxy x) $ "SubscriberMergeInt/Change"
2265 tracePropagate (Proxy :: Proxy x) $ "SubscriberMergeInt/Change"
2082 defer $ updateMe a
2266 defer $ updateMe a
2083 , subscriberInvalidateHeight = \_ -> return ()
2267 , subscriberInvalidateHeight = \_ -> return ()
2084 , subscriberRecalculateHeight = \_ -> return ()
2268 , subscriberRecalculateHeight = \_ -> return ()
2086− (changeSubscription, change) <- subscribeAndRead (dynamicUpdated d) s
2270+ (changeSubscription, change) <- subscribeAndRead (dynamicUpdated d) changeSubscriber
2087 forM_ change $ \c -> defer $ updateMe c
2271 forM_ change $ \c -> defer $ updateMe c
2088 -- We explicitly hold on to the unsubscribe function from subscribing to the update event.
2272 -- We explicitly hold on to the unsubscribe function from subscribing to the update event.
2089 -- If we don't do this, there are certain cases where mergeCheap will fail to properly retain
2273 -- If we don't do this, there are certain cases where mergeCheap will fail to properly retain
2090 -- its subscription.
2274 -- its subscription.
2091− liftIO $ writeIORef changeSubdRef (s, changeSubscription)
2275+ liftIO $ writeIORef changeSubdRef (changeSubscriber, changeSubscription)
2092 let unsubscribeAll = traverse_ unsubscribe =<< FastMutableIntMap.getFrozenAndClear parents
2276 let unsubscribeAll = traverse_ unsubscribe =<< FastMutableIntMap.getFrozenAndClear parents
2093− return ( EventSubscription unsubscribeAll $ EventSubscribed heightRef $ toAny (parents, changeSubdRef)
2279+ return (EventSubscription unsubscribeAll subscribed, occ)
2097newtype 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 }
2098newtype EventSelectorG x k v = EventSelectorG { selectG :: forall a. k a -> Event x (v a) }
2282newtype EventSelectorG x k v = EventSelectorG { selectG :: forall a. k a -> Event x (v a) }
@@ -2175,19 +2359,19 @@ runFrame a = SpiderHost $ do
2175 coincidenceInfos <- readIORef $ eventEnvResetCoincidences env
2359 coincidenceInfos <- readIORef $ eventEnvResetCoincidences env
2176 forM_ toAssign $ \(SomeAssignment vRef iRef v) -> {-# SCC "assignment" #-} do
2360 forM_ toAssign $ \(SomeAssignment vRef iRef v) -> {-# SCC "assignment" #-} do
2177 writeIORef vRef v
2361 writeIORef vRef v
2178− when debugInvalidate $ putStrLn $ "Invalidating Hold"
2362+ traceInvalidate $ "Invalidating Hold"
2179 writeIORef iRef =<< evaluate =<< invalidate toReconnectRef =<< readIORef iRef
2363 writeIORef iRef =<< evaluate =<< invalidate toReconnectRef =<< readIORef iRef
2180 mergeUpdates <- readIORef $ eventEnvMergeUpdates env
2364 mergeUpdates <- readIORef $ eventEnvMergeUpdates env
2181 writeIORef (eventEnvMergeUpdates env) []
2365 writeIORef (eventEnvMergeUpdates env) []
2182− when debugPropagate $ putStrLn "Updating merges"
2366+ tracePropagate (Proxy::Proxy x) $ "Updating merges"
2183 mergeSubscriptionsToKill <- runEventM $ concat <$> mapM _someMergeUpdate_update mergeUpdates
2367 mergeSubscriptionsToKill <- runEventM $ concat <$> mapM _someMergeUpdate_update mergeUpdates
2184− when debugPropagate $ putStrLn "Updating merges done"
2368+ tracePropagate (Proxy::Proxy x) $ "Updating merges done"
2185 toReconnect <- readIORef toReconnectRef
2369 toReconnect <- readIORef toReconnectRef
2186 clearEventEnv env
2370 clearEventEnv env
2187 switchSubscriptionsToKill <- forM toReconnect $ \(SomeSwitchSubscribed subscribed) -> {-# SCC "switchSubscribed" #-} do
2371 switchSubscriptionsToKill <- forM toReconnect $ \(SomeSwitchSubscribed subscribed) -> {-# SCC "switchSubscribed" #-} do
2188 oldSubscription <- readIORef $ switchSubscribedCurrentParent subscribed
2372 oldSubscription <- readIORef $ switchSubscribedCurrentParent subscribed
2189 wi <- readIORef $ switchSubscribedOwnWeakInvalidator subscribed
2373 wi <- readIORef $ switchSubscribedOwnWeakInvalidator subscribed
2190− when debugInvalidate $ putStrLn $ "Finalizing invalidator for Switch" <> showNodeId subscribed
2374+ traceInvalidate $ "Finalizing invalidator for Switch" <> showNodeId subscribed
2191 finalize wi
2375 finalize wi
2192 i <- evaluate $ switchSubscribedOwnInvalidator subscribed
2376 i <- evaluate $ switchSubscribedOwnInvalidator subscribed
2193 wi' <- mkWeakPtrWithDebug i "wi'"
2377 wi' <- mkWeakPtrWithDebug i "wi'"
@@ -2201,7 +2385,7 @@ runFrame a = SpiderHost $ do
2201 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
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
2203 stackTrace <- liftIO $ fmap renderStack $ ccsToStrings =<< (getCCSOf $! switchSubscribedParent subscribed)
2387 stackTrace <- liftIO $ fmap renderStack $ ccsToStrings =<< (getCCSOf $! switchSubscribedParent subscribed)
2204− liftIO $ putStrLn $ (++stackTrace) $ "subd' subscribed to " ++ case e of
2388+ liftIO $ debugStrLn $ (++stackTrace) $ "subd' subscribed to " ++ case e of
2205 EventRoot _ -> "EventRoot"
2389 EventRoot _ -> "EventRoot"
2206 EventNever -> "EventNever"
2390 EventNever -> "EventNever"
2207 _ -> "something else"
2391 _ -> "something else"
@@ -2336,6 +2520,8 @@ instance HasSpiderTimeline x => Reflex.Class.MonadHold (SpiderTimeline x) (Event
2336 {-# INLINABLE headE #-}
2520 {-# INLINABLE headE #-}
2337 headE = R.slowHeadE
2521 headE = R.slowHeadE
2338-- headE (SpiderEvent e) = SpiderEvent <$> Reflex.Spider.Internal.headE e
2522-- headE (SpiderEvent e) = SpiderEvent <$> Reflex.Spider.Internal.headE e
2523+ {-# INLINABLE now #-}
2524+ now = nowSpiderEventM
2340instance Reflex.Class.MonadSample (SpiderTimeline x) (SpiderPullM x) where
2526instance Reflex.Class.MonadSample (SpiderTimeline x) (SpiderPullM x) where
2341 {-# INLINABLE sample #-}
2527 {-# INLINABLE sample #-}
@@ -2357,6 +2543,9 @@ instance HasSpiderTimeline x => Reflex.Class.MonadHold (SpiderTimeline x) (Spide
2357 {-# INLINABLE headE #-}
2543 {-# INLINABLE headE #-}
2358 headE = R.slowHeadE
2544 headE = R.slowHeadE
2359-- headE (SpiderEvent e) = SpiderPushM $ SpiderEvent <$> Reflex.Spider.Internal.headE e
2545-- headE (SpiderEvent e) = SpiderPushM $ SpiderEvent <$> Reflex.Spider.Internal.headE e
2546+ {-# INLINABLE now #-}
2547+ now = SpiderPushM nowSpiderEventM
2361instance HasSpiderTimeline x => Monad (Reflex.Class.Dynamic (SpiderTimeline x)) where
2550instance HasSpiderTimeline x => Monad (Reflex.Class.Dynamic (SpiderTimeline x)) where
2362 {-# INLINE return #-}
2551 {-# INLINE return #-}
@@ -2420,6 +2609,9 @@ instance HasSpiderTimeline x => Reflex.Class.MonadHold (SpiderTimeline x) (Spide
2420 buildDynamic getV0 e = runFrame . runSpiderHostFrame $ Reflex.Class.buildDynamic getV0 e
2609 buildDynamic getV0 e = runFrame . runSpiderHostFrame $ Reflex.Class.buildDynamic getV0 e
2421 {-# INLINABLE headE #-}
2610 {-# INLINABLE headE #-}
2422 headE e = runFrame . runSpiderHostFrame $ Reflex.Class.headE e
2611 headE e = runFrame . runSpiderHostFrame $ Reflex.Class.headE e
2612+ {-# INLINABLE now #-}
2613+ now = runFrame . runSpiderHostFrame $ Reflex.Class.now
2424instance HasSpiderTimeline x => Reflex.Class.MonadSample (SpiderTimeline x) (SpiderHostFrame x) where
2616instance HasSpiderTimeline x => Reflex.Class.MonadSample (SpiderTimeline x) (SpiderHostFrame x) where
2425 sample = SpiderHostFrame . readBehaviorUntracked . unSpiderBehavior --TODO: This can cause problems with laziness, so we should get rid of it if we can
2617 sample = SpiderHostFrame . readBehaviorUntracked . unSpiderBehavior --TODO: This can cause problems with laziness, so we should get rid of it if we can
@@ -2436,6 +2628,8 @@ instance HasSpiderTimeline x => Reflex.Class.MonadHold (SpiderTimeline x) (Spide
2436 {-# INLINABLE headE #-}
2628 {-# INLINABLE headE #-}
2437 headE = R.slowHeadE
2629 headE = R.slowHeadE
2438-- headE (SpiderEvent e) = SpiderHostFrame $ SpiderEvent <$> Reflex.Spider.Internal.headE e
2630-- headE (SpiderEvent e) = SpiderHostFrame $ SpiderEvent <$> Reflex.Spider.Internal.headE e
2631+ {-# INLINABLE now #-}
2632+ now = SpiderHostFrame Reflex.Class.now
2440instance HasSpiderTimeline x => Reflex.Class.MonadSample (SpiderTimeline x) (SpiderHost x) where
2634instance HasSpiderTimeline x => Reflex.Class.MonadSample (SpiderTimeline x) (SpiderHost x) where
2441 {-# INLINABLE sample #-}
2635 {-# INLINABLE sample #-}
@@ -2456,6 +2650,8 @@ instance HasSpiderTimeline x => Reflex.Class.MonadHold (SpiderTimeline x) (Refle
2456 buildDynamic getV0 e = Reflex.Spider.Internal.ReadPhase $ Reflex.Class.buildDynamic getV0 e
2650 buildDynamic getV0 e = Reflex.Spider.Internal.ReadPhase $ Reflex.Class.buildDynamic getV0 e
2457 {-# INLINABLE headE #-}
2651 {-# INLINABLE headE #-}
2458 headE e = Reflex.Spider.Internal.ReadPhase $ Reflex.Class.headE e
2652 headE e = Reflex.Spider.Internal.ReadPhase $ Reflex.Class.headE e
2653+ {-# INLINABLE now #-}
2654+ now = Reflex.Spider.Internal.ReadPhase Reflex.Class.now
2460--------------------------------------------------------------------------------
2656--------------------------------------------------------------------------------
2461-- Deprecated items
2657-- Deprecated items
@@ -2493,13 +2689,13 @@ instance HasSpiderTimeline x => Reflex.Host.Class.MonadReadEvent (SpiderTimeline
2494 return result
2690 return result
2496−instance Reflex.Host.Class.MonadReflexCreateTrigger (SpiderTimeline x) (SpiderHost x) where
2692+instance HasSpiderTimeline x => Reflex.Host.Class.MonadReflexCreateTrigger (SpiderTimeline x) (SpiderHost x) where
2497 newEventWithTrigger = SpiderHost . fmap SpiderEvent . newEventWithTriggerIO
2693 newEventWithTrigger = SpiderHost . fmap SpiderEvent . newEventWithTriggerIO
2498 newFanEventWithTrigger f = SpiderHost $ do
2694 newFanEventWithTrigger f = SpiderHost $ do
2499 es <- newFanEventWithTriggerIO f
2695 es <- newFanEventWithTriggerIO f
2500 return $ Reflex.Class.EventSelector $ SpiderEvent . Reflex.Spider.Internal.select es
2696 return $ Reflex.Class.EventSelector $ SpiderEvent . Reflex.Spider.Internal.select es
2502−instance Reflex.Host.Class.MonadReflexCreateTrigger (SpiderTimeline x) (SpiderHostFrame x) where
2698+instance HasSpiderTimeline x => Reflex.Host.Class.MonadReflexCreateTrigger (SpiderTimeline x) (SpiderHostFrame x) where
2503 newEventWithTrigger = SpiderHostFrame . EventM . liftIO . fmap SpiderEvent . newEventWithTriggerIO
2699 newEventWithTrigger = SpiderHostFrame . EventM . liftIO . fmap SpiderEvent . newEventWithTriggerIO
2504 newFanEventWithTrigger f = SpiderHostFrame $ EventM $ liftIO $ do
2700 newFanEventWithTrigger f = SpiderHostFrame $ EventM $ liftIO $ do
2505 es <- newFanEventWithTriggerIO f
2701 es <- newFanEventWithTriggerIO f
@@ -2579,7 +2775,7 @@ instance HasSpiderTimeline x => R.Reflex (SpiderTimeline x) where
2579 fanG e = R.EventSelectorG $ SpiderEvent . selectG (fanG (unSpiderEvent e))
2775 fanG e = R.EventSelectorG $ SpiderEvent . selectG (fanG (unSpiderEvent e))
2580 {-# INLINABLE mergeG #-}
2776 {-# INLINABLE mergeG #-}
2582− :: forall (k :: k2 -> *) q (v :: k2 -> *). GCompare k
2778+ :: forall k2 (k :: k2 -> *) q (v :: k2 -> *). GCompare k
2583 => (forall a. q a -> R.Event (SpiderTimeline x) (v a))
2779 => (forall a. q a -> R.Event (SpiderTimeline x) (v a))
2584 -> DMap k q
2780 -> DMap k q
2585 -> R.Event (SpiderTimeline x) (DMap k v)
2781 -> R.Event (SpiderTimeline x) (DMap k v)
@@ -2649,12 +2845,12 @@ instance Monad (SpiderHost x) where
2649 return x = SpiderHost $ return x
2845 return x = SpiderHost $ return x
2650#if !MIN_VERSION_base(4,13,0)
2846#if !MIN_VERSION_base(4,13,0)
2651 {-# INLINABLE fail #-}
2847 {-# INLINABLE fail #-}
2652− fail s = MonadFail.fail
2848+ fail = MonadFail.fail
2655instance MonadFail (SpiderHost x) where
2851instance MonadFail (SpiderHost x) where
2656 {-# INLINABLE fail #-}
2852 {-# INLINABLE fail #-}
2657− fail s = SpiderHost $ fail s
2853+ fail s = SpiderHost $ MonadFail.fail s
2659-- | 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
2660-- a mutex for that timeline
2856-- a mutex for that timeline
@@ -2677,24 +2873,20 @@ instance Monad (SpiderHostFrame x) where
2677 {-# INLINABLE return #-}
2873 {-# INLINABLE return #-}
2678 return x = SpiderHostFrame $ return x
2874 return x = SpiderHostFrame $ return x
2679#if !MIN_VERSION_base(4,13,0)
2875#if !MIN_VERSION_base(4,13,0)
2680− {-# INLINABLE fail #-}
2681− fail s = MonadFail.fail
2684−instance MonadFail (SpiderHostFrame x) where
2685 {-# INLINABLE fail #-}
2876 {-# INLINABLE fail #-}
2686 fail s = SpiderHostFrame $ fail s
2877 fail s = SpiderHostFrame $ fail s
2688instance NotReady (SpiderTimeline x) (SpiderHostFrame x) where
2880instance NotReady (SpiderTimeline x) (SpiderHostFrame x) where
2689 notReadyUntil _ = pure ()
2881 notReadyUntil _ = pure ()
2690 notReady = pure ()
2882 notReady = pure ()
2692−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)
2693newEventWithTriggerIO f = do
2885newEventWithTriggerIO f = do
2694 es <- newFanEventWithTriggerIO $ \Refl -> f
2886 es <- newFanEventWithTriggerIO $ \Refl -> f
2695 return $ select es Refl
2887 return $ select es Refl
2697−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)
2698newFanEventWithTriggerIO f = do
2890newFanEventWithTriggerIO f = do
2699 occRef <- newIORef DMap.empty
2891 occRef <- newIORef DMap.empty
2700 subscribedRef <- newIORef DMap.empty
2892 subscribedRef <- newIORef DMap.empty