@@ -9,37 +9,49 @@
9{-# LANGUAGE GADTs #-}
9{-# LANGUAGE GADTs #-}
10{-# LANGUAGE GeneralizedNewtypeDeriving #-}
10{-# LANGUAGE GeneralizedNewtypeDeriving #-}
11{-# LANGUAGE LambdaCase #-}
11{-# LANGUAGE LambdaCase #-}
12−{-# LANGUAGE MagicHash #-}
13−{-# LANGUAGE MultiParamTypeClasses #-}
14−{-# LANGUAGE MultiWayIf #-}
15{-# LANGUAGE RankNTypes #-}
12{-# LANGUAGE RankNTypes #-}
16{-# LANGUAGE RoleAnnotations #-}
13{-# LANGUAGE RoleAnnotations #-}
17{-# LANGUAGE ScopedTypeVariables #-}
14{-# LANGUAGE ScopedTypeVariables #-}
18{-# LANGUAGE TypeFamilies #-}
15{-# LANGUAGE TypeFamilies #-}
19{-# LANGUAGE TypeOperators #-}
16{-# LANGUAGE TypeOperators #-}
20{-# LANGUAGE UndecidableInstances #-}
17{-# LANGUAGE UndecidableInstances #-}
18+{-# LANGUAGE PolyKinds #-}
19+{-# LANGUAGE DeriveFunctor #-}
20+{-# LANGUAGE StandaloneDeriving #-}
21+{-# LANGUAGE InstanceSigs #-}
22+{-# LANGUAGE MultiWayIf #-}
21#ifdef USE_REFLEX_OPTIMIZER
24#ifdef USE_REFLEX_OPTIMIZER
22{-# OPTIONS_GHC -fplugin=Reflex.Optimizer #-}
25{-# OPTIONS_GHC -fplugin=Reflex.Optimizer #-}
27+{-# OPTIONS_GHC -Wunused-binds #-}
24-- | This module is the implementation of the 'Spider' 'Reflex' engine. It uses
28-- | This module is the implementation of the 'Spider' 'Reflex' engine. It uses
25-- a graph traversal algorithm to propagate 'Event's and 'Behavior's.
29-- a graph traversal algorithm to propagate 'Event's and 'Behavior's.
26module Reflex.Spider.Internal (module Reflex.Spider.Internal) where
30module Reflex.Spider.Internal (module Reflex.Spider.Internal) where
32+#if MIN_VERSION_base(4,10,0)
28−import Control.Applicative
33+import Control.Applicative (liftA2)
29import Control.Concurrent
35import Control.Concurrent
30import Control.Exception
36import Control.Exception
31−import Control.Monad hiding (forM, forM_, mapM, mapM_, sequence)
37+import Control.Monad hiding (forM, forM_, mapM, mapM_)
32import Control.Monad.Exception
38import Control.Monad.Exception
33−import Control.Monad.Identity hiding (forM, forM_, mapM, mapM_, sequence)
39+import Control.Monad.Identity hiding (forM, forM_, mapM, mapM_)
34import Control.Monad.Primitive
40import Control.Monad.Primitive
35−import Control.Monad.Reader hiding (forM, forM_, mapM, mapM_, sequence)
41+import Control.Monad.Reader.Class
42+import Control.Monad.IO.Class
43+import Control.Monad.ReaderIO
36import Control.Monad.Ref
44import Control.Monad.Ref
45+import Control.Monad.Fail (MonadFail)
46+import qualified Control.Monad.Fail as MonadFail
37import Data.Align
47import Data.Align
38import Data.Coerce
48import Data.Coerce
39−import Data.Dependent.Map (DMap, DSum (..))
49+import Data.Dependent.Map (DMap)
40import qualified Data.Dependent.Map as DMap
50import qualified Data.Dependent.Map as DMap
51+import Data.Dependent.Sum (DSum (..))
52+import Data.FastMutableIntMap (FastMutableIntMap, PatchIntMap (..))
53+import qualified Data.FastMutableIntMap as FastMutableIntMap
41import Data.Foldable hiding (concat, elem, sequence_)
54import Data.Foldable hiding (concat, elem, sequence_)
43import Data.Functor.Constant
55import Data.Functor.Constant
44import Data.Functor.Misc
56import Data.Functor.Misc
45import Data.Functor.Product
57import Data.Functor.Product
@@ -47,61 +59,73 @@ import Data.GADT.Compare
47import Data.IntMap.Strict (IntMap)
59import Data.IntMap.Strict (IntMap)
48import qualified Data.IntMap.Strict as IntMap
60import qualified Data.IntMap.Strict as IntMap
49import Data.IORef
61import Data.IORef
50−import Data.List hiding (foldl')
62+import Data.Kind (Type)
51−import Data.Maybe
63+import Data.Maybe hiding (mapMaybe)
52−import Data.Monoid ((<>))
64+import Data.Monoid (mempty, (<>))
53import Data.Proxy
65import Data.Proxy
54import Data.These
66import Data.These
55import Data.Traversable
67import Data.Traversable
56−import Data.Word
68+import Data.Type.Equality ((:~:)(Refl))
57−import Data.FastMutableIntMap (FastMutableIntMap, PatchIntMap (..))
69+import Data.Witherable (Filterable, mapMaybe)
58−import qualified Data.FastMutableIntMap as FastMutableIntMap
59−import GHC.Exts
70+import GHC.Exts hiding (toList)
60import GHC.IORef (IORef (..))
71import GHC.IORef (IORef (..))
61import GHC.Stack
72import GHC.Stack
62import Reflex.FastWeak
73import Reflex.FastWeak
63−import Reflex.FunctorMaybe
64import System.IO.Unsafe
74import System.IO.Unsafe
65import System.Mem.Weak
75import System.Mem.Weak
66import Unsafe.Coerce
76import Unsafe.Coerce
78+#ifdef MIN_VERSION_semialign
79+#if MIN_VERSION_these(0,8,0)
80+import Data.These.Combinators (justThese)
82+#if MIN_VERSION_semialign(1,1,0)
83+import Data.Zip (Zip (..))
68#ifdef DEBUG_CYCLES
87#ifdef DEBUG_CYCLES
69import Control.Monad.State hiding (forM, forM_, mapM, mapM_, sequence)
88import Control.Monad.State hiding (forM, forM_, mapM, mapM_, sequence)
70import Data.List.NonEmpty (NonEmpty (..), nonEmpty)
91import Data.List.NonEmpty (NonEmpty (..), nonEmpty)
71import qualified Data.List.NonEmpty as NonEmpty
92import qualified Data.List.NonEmpty as NonEmpty
72−import Data.Monoid (mempty)
73import Data.Tree (Forest, Tree (..), drawForest)
93import Data.Tree (Forest, Tree (..), drawForest)
74−#endif
94+import Data.List (isPrefixOf)
76−import Data.FastWeakBag (FastWeakBag)
96+import Data.FastWeakBag (FastWeakBag, FastWeakBagTicket)
77import qualified Data.FastWeakBag as FastWeakBag
97import qualified Data.FastWeakBag as FastWeakBag
78−import Data.WeakBag (WeakBag, WeakBagTicket, _weakBag_children)
98+
79−import qualified Data.WeakBag as WeakBag
80import Data.Reflection
99import Data.Reflection
81−import Data.Some (Some)
100+import Data.Some (Some(Some))
82−import qualified Data.Some as Some
83import Data.Type.Coercion
101import Data.Type.Coercion
102+import Data.Profunctor.Unsafe ((#.), (.#))
103+import Data.WeakBag (WeakBag, WeakBagTicket, _weakBag_children)
104+import qualified Data.WeakBag as WeakBag
84import qualified Reflex.Class
105import qualified Reflex.Class
85import qualified Reflex.Class as R
106import qualified Reflex.Class as R
86import qualified Reflex.Host.Class
107import qualified Reflex.Host.Class
87import Reflex.NotReady.Class
108import Reflex.NotReady.Class
88−import Reflex.Patch
109+import Data.Patch
89−import qualified Reflex.Patch.DMapWithMove as PatchDMapWithMove
110+import qualified Data.Patch.DMapWithMove as PatchDMapWithMove
90−
111+import Reflex.PerformEvent.Base (PerformEventT)
91−-- Note: must come last to silence warnings due to AMP on GHC < 7.10
92−import Prelude hiding (any, concat, mapM, mapM_, sequence)
94#ifdef DEBUG_TRACE_EVENTS
113#ifdef DEBUG_TRACE_EVENTS
95−import System.IO (stderr)
96import qualified Data.ByteString.Char8 as BS8
114import qualified Data.ByteString.Char8 as BS8
115+import System.IO (stderr)
116+import Data.List (isPrefixOf)
99−#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
101withStackOneLine :: (BS8.ByteString -> a) -> a
124withStackOneLine :: (BS8.ByteString -> a) -> a
102withStackOneLine expr = unsafePerformIO $ do
125withStackOneLine expr = unsafePerformIO $ do
103 stack <- currentCallStack
126 stack <- currentCallStack
104− return (expr (BS8.pack (unwords (reverse stack))))
127+ return (expr . BS8.pack . unwords . dropInternal . reverse $ stack)
128+ where dropInternal = filterStack "Reflex.Spider.Internal"
@@ -112,28 +136,42 @@ debugInvalidateHeight :: Bool
112debugInvalidate :: Bool
136debugInvalidate :: Bool
114#ifdef DEBUG
138#ifdef DEBUG
116#define DEBUG_NODEIDS
139#define DEBUG_NODEIDS
141+#ifdef DEBUG_TRACE_PROPAGATION
118debugPropagate = True
142debugPropagate = True
144+debugPropagate = False
147+#ifdef DEBUG_TRACE_HEIGHT
148+debugInvalidateHeight = True
120debugInvalidateHeight = False
150debugInvalidateHeight = False
153+#ifdef DEBUG_TRACE_INVALIDATION
122debugInvalidate = True
154debugInvalidate = True
156+debugInvalidate = False
124class HasNodeId a where
159class HasNodeId a where
125 getNodeId :: a -> Int
160 getNodeId :: a -> Int
127−instance HasNodeId (Hold x p a) where
162+instance HasNodeId (CacheSubscribed x a) where
128− getNodeId = holdNodeId
163+ getNodeId = _cacheSubscribed_nodeId
130−instance HasNodeId (PushSubscribed x a b) where
165+instance HasNodeId (FanInt x a) where
131− getNodeId = pushSubscribedNodeId
166+ getNodeId = _fanInt_nodeId
168+instance HasNodeId (Hold x p) where
169+ getNodeId = holdNodeId
133instance HasNodeId (SwitchSubscribed x a) where
171instance HasNodeId (SwitchSubscribed x a) where
134 getNodeId = switchSubscribedNodeId
172 getNodeId = switchSubscribedNodeId
136−instance HasNodeId (FanSubscribed x a) where
174+instance HasNodeId (FanSubscribed x v a) where
137 getNodeId = fanSubscribedNodeId
175 getNodeId = fanSubscribedNodeId
139instance HasNodeId (CoincidenceSubscribed x a) where
177instance HasNodeId (CoincidenceSubscribed x a) where
@@ -147,41 +185,16 @@ instance HasNodeId (Pull x a) where
148{-# INLINE showNodeId #-}
186{-# INLINE showNodeId #-}
149showNodeId :: HasNodeId a => a -> String
187showNodeId :: HasNodeId a => a -> String
150−showNodeId = ("#"<>) . show . getNodeId
188+showNodeId = showNodeId' . getNodeId
152−showSubscriberType :: Subscriber x a -> String
190+showNodeId' :: Int -> String
153−showSubscriberType = \case
191+showNodeId' = ("#"<>) . show
154− SubscriberPush _ _ -> "SubscriberPush"
192+
155− SubscriberMerge _ _ -> "SubscriberMerge"
156− SubscriberFan _ -> "SubscriberFan"
157− SubscriberMergeChange _ -> "SubscriberMergeChange"
158− SubscriberHold _ -> "SubscriberHold"
159− SubscriberHoldIdentity _ -> "SubscriberHoldIdentity"
160− SubscriberSwitch _ -> "SubscriberSwitch"
161− SubscriberCoincidenceOuter _ -> "SubscriberCoincidenceOuter"
162− SubscriberCoincidenceInner _ -> "SubscriberCoincidenceInner"
163− SubscriberHandle -> "SubscriberHandle"
165−showEventType :: Event x a -> String
166−showEventType = \case
167− EventRoot _ _ -> "EventRoot"
168− EventNever -> "EventNever"
169− EventPush _ -> "EventPush"
170− EventMerge _ -> "EventMerge"
171− EventFan _ _ -> "EventFan"
172− EventSwitch _ -> "EventSwitch"
173− EventCoincidence _ -> "EventCoincidence"
174− EventHold _ -> "EventHold"
175− EventDyn _ -> "EventDyn"
176− EventHoldIdentity _ -> "EventHoldIdentity"
177− EventDynIdentity _ -> "EventDynIdentity"
181debugPropagate = False
196debugPropagate = False
183debugInvalidateHeight = False
197debugInvalidateHeight = False
185debugInvalidate = False
198debugInvalidate = False
187-- 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
@@ -189,6 +202,10 @@ debugInvalidate = False
189showNodeId :: a -> String
202showNodeId :: a -> String
190showNodeId _ = ""
203showNodeId _ = ""
205+{-# INLINE showNodeId' #-}
206+showNodeId' :: Int -> String
194#ifdef DEBUG_NODEIDS
211#ifdef DEBUG_NODEIDS
@@ -198,12 +215,6 @@ nextNodeIdRef = unsafePerformIO $ newIORef 1
199newNodeId :: IO Int
216newNodeId :: IO Int
200newNodeId = atomicModifyIORef' nextNodeIdRef $ \n -> (succ n, n)
217newNodeId = atomicModifyIORef' nextNodeIdRef $ \n -> (succ n, n)
202−{-# NOINLINE unsafeNodeId #-}
203−unsafeNodeId :: a -> Int
204−unsafeNodeId a = unsafePerformIO $ do
209--------------------------------------------------------------------------------
220--------------------------------------------------------------------------------
@@ -242,7 +253,7 @@ subscribeAndRead = unEvent
242{-# INLINE [1] pushCheap #-}
253{-# INLINE [1] pushCheap #-}
243pushCheap :: HasSpiderTimeline x => (a -> ComputeM x (Maybe b)) -> Event x a -> Event x b
254pushCheap :: HasSpiderTimeline x => (a -> ComputeM x (Maybe b)) -> Event x a -> Event x b
244pushCheap !f e = Event $ \sub -> do
255pushCheap !f e = Event $ \sub -> do
245− (subscription, occ) <- subscribeAndRead e $ sub
256+ (subscription, occ) <- subscribeAndRead e $ debugSubscriber' "push" $ sub
246 { subscriberPropagate = \a -> do
257 { subscriberPropagate = \a -> do
247 mb <- f a
258 mb <- f a
248 mapM_ (subscriberPropagate sub) mb
259 mapM_ (subscriberPropagate sub) mb
@@ -261,10 +272,10 @@ terminalSubscriber p = Subscriber
262-- | Subscribe to an Event only for the duration of one occurrence
273-- | Subscribe to an Event only for the duration of one occurrence
263{-# INLINE subscribeAndReadHead #-}
274{-# INLINE subscribeAndReadHead #-}
264−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)
265subscribeAndReadHead e sub = do
276subscribeAndReadHead e sub = do
266 subscriptionRef <- liftIO $ newIORef $ error "subscribeAndReadHead: not initialized"
277 subscriptionRef <- liftIO $ newIORef $ error "subscribeAndReadHead: not initialized"
267− (subscription, occ) <- subscribeAndRead e $ sub
278+ (subscription, occ) <- subscribeAndRead e $ debugSubscriber' "head" $ sub
268 { subscriberPropagate = \a -> do
279 { subscriberPropagate = \a -> do
269 liftIO $ unsubscribe =<< readIORef subscriptionRef
280 liftIO $ unsubscribe =<< readIORef subscriptionRef
270 subscriberPropagate sub a
281 subscriberPropagate sub a
@@ -275,24 +286,42 @@ subscribeAndReadHead e sub = do
275 return (subscription, occ)
286 return (subscription, occ)
277--TODO: Make this lazy in its input event
288--TODO: Make this lazy in its input event
278−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)
279headE originalE = do
290headE originalE = do
280 parent <- liftIO $ newIORef $ Just originalE
291 parent <- liftIO $ newIORef $ Just originalE
281 defer $ SomeMergeInit $ do --TODO: Rename SomeMergeInit appropriately
292 defer $ SomeMergeInit $ do --TODO: Rename SomeMergeInit appropriately
282 let clearParent = liftIO $ writeIORef parent Nothing
293 let clearParent = liftIO $ writeIORef parent Nothing
283− (_, occ) <- subscribeAndReadHead originalE $ terminalSubscriber $ \_ -> clearParent
294+ (_, occ) <- subscribeAndReadHead originalE $ terminalSubscriber $ const clearParent
284 when (isJust occ) clearParent
295 when (isJust occ) clearParent
285− return $ Event $ \sub -> do
296+ return $ Event $ \sub ->
286 liftIO (readIORef parent) >>= \case
297 liftIO (readIORef parent) >>= \case
287− Nothing -> return (EventSubscription (return ()) $ EventSubscribed zeroRef $ toAny (), Nothing)
298+ Nothing -> subscribeAndReadNever
288 Just e -> subscribeAndReadHead e sub
299 Just e -> subscribeAndReadHead e sub
290data CacheSubscribed x a
301data CacheSubscribed x a
291 = CacheSubscribed { _cacheSubscribed_subscribers :: {-# UNPACK #-} !(FastWeakBag (Subscriber x a))
302 = CacheSubscribed { _cacheSubscribed_subscribers :: {-# UNPACK #-} !(FastWeakBag (Subscriber x a))
292 , _cacheSubscribed_parent :: {-# UNPACK #-} !(EventSubscription x)
303 , _cacheSubscribed_parent :: {-# UNPACK #-} !(EventSubscription x)
293 , _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
296-- | Construct an 'Event' whose value is guaranteed not to be recomputed
325-- | Construct an 'Event' whose value is guaranteed not to be recomputed
297-- repeatedly
326-- repeatedly
@@ -307,27 +336,33 @@ cacheEvent e =
339+ unsafePerformIO $ do
310− let mSubscribedRef :: IORef (FastWeak (CacheSubscribed x a))
340+ mSubscribedRef :: IORef (FastWeak (CacheSubscribed x a))
311− !mSubscribedRef = unsafeNewIORef e emptyFastWeak
341+ <- newIORef emptyFastWeak
312− in \sub -> {-# SCC "cacheEvent" #-} do
342+ pure $ \sub -> {-# SCC "cacheEvent" #-} do
313#ifdef DEBUG_TRACE_EVENTS
343#ifdef DEBUG_TRACE_EVENTS
314 unless (BS8.null callSite) $ liftIO $ BS8.hPutStrLn stderr callSite
344 unless (BS8.null callSite) $ liftIO $ BS8.hPutStrLn stderr callSite
316 subscribedTicket <- liftIO (readIORef mSubscribedRef >>= getFastWeakTicket) >>= \case
346 subscribedTicket <- liftIO (readIORef mSubscribedRef >>= getFastWeakTicket) >>= \case
317 Just subscribedTicket -> return subscribedTicket
347 Just subscribedTicket -> return subscribedTicket
318 Nothing -> do
348 Nothing -> do
350+ nodeId <- liftIO newNodeId
319 subscribers <- liftIO FastWeakBag.empty
352 subscribers <- liftIO FastWeakBag.empty
320 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
321 (parentSub, occ) <- subscribeAndRead e $ Subscriber
357 (parentSub, occ) <- subscribeAndRead e $ Subscriber
322− { subscriberPropagate = \a -> do
359+ { subscriberPropagate = \a -> do
323− liftIO $ writeIORef occRef $ Just a
360+ liftIO $ writeIORef occRef (Just a)
324− scheduleClear occRef
361+ scheduleClear occRef
325− propagateFast a subscribers
362+ propagateFast a subscribers
326− , subscriberInvalidateHeight = \old -> do
327− FastWeakBag.traverse subscribers $ invalidateSubscriberHeight old
363+ , subscriberInvalidateHeight = FastWeakBag.traverse_ subscribers . invalidateSubscriberHeight
328− , subscriberRecalculateHeight = \new -> do
329− FastWeakBag.traverse subscribers $ recalculateSubscriberHeight new
364+ , subscriberRecalculateHeight = FastWeakBag.traverse_ subscribers . recalculateSubscriberHeight
331 when (isJust occ) $ do
366 when (isJust occ) $ do
332 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
333 scheduleClear occRef
368 scheduleClear occRef
@@ -335,29 +370,45 @@ cacheEvent e =
335 { _cacheSubscribed_subscribers = subscribers
370 { _cacheSubscribed_subscribers = subscribers
336 , _cacheSubscribed_parent = parentSub
371 , _cacheSubscribed_parent = parentSub
337 , _cacheSubscribed_occurrence = occRef
372 , _cacheSubscribed_occurrence = occRef
374+ , _cacheSubscribed_nodeId = nodeId
339 subscribedTicket <- liftIO $ mkFastWeakTicket subscribed
377 subscribedTicket <- liftIO $ mkFastWeakTicket subscribed
340 liftIO $ writeIORef mSubscribedRef =<< getFastWeakTicketWeak subscribedTicket
378 liftIO $ writeIORef mSubscribedRef =<< getFastWeakTicketWeak subscribedTicket
341 return subscribedTicket
379 return subscribedTicket
342− 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
343− subscribed <- getFastWeakTicketValue subscribedTicket
385+ subscribed <- getFastWeakTicketValue subscribedTicket
344− ticket <- FastWeakBag.insert sub $ _cacheSubscribed_subscribers subscribed
386+ ticket <- FastWeakBag.insert sub $ _cacheSubscribed_subscribers subscribed
345− occ <- readIORef $ _cacheSubscribed_occurrence subscribed
387+ occ <- readIORef $ _cacheSubscribed_occurrence subscribed
389+ let parentSub = _cacheSubscribed_parent subscribed
346− let es = EventSubscription
390+ es = EventSubscription
347− { _eventSubscription_unsubscribe = do
391+ { _eventSubscription_unsubscribe = do
348− FastWeakBag.remove ticket
392+ FastWeakBag.remove ticket
349− isEmpty <- FastWeakBag.isEmpty $ _cacheSubscribed_subscribers subscribed
394+ isEmpty <- FastWeakBag.isEmpty $ _cacheSubscribed_subscribers subscribed
350− when isEmpty $ do
395+ when isEmpty $ do
351− writeIORef mSubscribedRef emptyFastWeak
396+ writeIORef mSubscribedRef emptyFastWeak
352− unsubscribe $ _cacheSubscribed_parent subscribed
397+ unsubscribe parentSub
353− touch ticket
398+ touch ticket
354− touch subscribedTicket
399+ touch subscribedTicket
355− , _eventSubscription_subscribed = EventSubscribed
400+ , _eventSubscription_subscribed = EventSubscribed
356− { eventSubscribedHeightRef = eventSubscribedHeightRef $ _eventSubscription_subscribed $ _cacheSubscribed_parent subscribed
401+ { eventSubscribedHeightRef = eventSubscribedHeightRef $ _eventSubscription_subscribed parentSub
357− , eventSubscribedRetained = toAny subscribedTicket
402+ , eventSubscribedRetained = toAny subscribedTicket
404+ , eventSubscribedGetParents = return [_eventSubscription_subscribed parentSub]
405+ , eventSubscribedHasOwnHeightRef = False
406+ , eventSubscribedWhoCreated = whoCreatedIORef mSubscribedRef
360− return (es, occ)
410+ return (es, occ)
362subscribe :: Event x a -> Subscriber x a -> EventM x (EventSubscription x)
413subscribe :: Event x a -> Subscriber x a -> EventM x (EventSubscription x)
363subscribe e s = fst <$> subscribeAndRead e s
414subscribe e s = fst <$> subscribeAndRead e s
@@ -369,13 +420,16 @@ wrap tag getSpecificSubscribed sub = do
369 let es = tag subd
420 let es = tag subd
370 return (EventSubscription (WeakBag.remove sln >> touch sln) es, occ)
421 return (EventSubscription (WeakBag.remove sln >> touch sln) es, occ)
372−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
373eventRoot !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)
375eventNever :: Event x a
429eventNever :: Event x a
376−eventNever = Event $ \_ -> return (EventSubscription (return ()) eventSubscribedNever, Nothing)
430+eventNever = Event $ const subscribeAndReadNever
378−eventFan :: (GCompare k, HasSpiderTimeline x) => k a -> Fan x k -> Event x a
432+eventFan :: (GCompare k, HasSpiderTimeline x) => k a -> Fan x k v -> Event x (v a)
379eventFan !k !f = Event $ wrap eventSubscribedFan $ getFanSubscribed k f
433eventFan !k !f = Event $ wrap eventSubscribedFan $ getFanSubscribed k f
381eventSwitch :: HasSpiderTimeline x => Switch x a -> Event x a
435eventSwitch :: HasSpiderTimeline x => Switch x a -> Event x a
@@ -384,7 +438,7 @@ eventSwitch !s = Event $ wrap eventSubscribedSwitch $ getSwitchSubscribed s
384eventCoincidence :: HasSpiderTimeline x => Coincidence x a -> Event x a
438eventCoincidence :: HasSpiderTimeline x => Coincidence x a -> Event x a
385eventCoincidence !c = Event $ wrap eventSubscribedCoincidence $ getCoincidenceSubscribed c
439eventCoincidence !c = Event $ wrap eventSubscribedCoincidence $ getCoincidenceSubscribed c
387−eventHold :: HasSpiderTimeline x => Hold x p -> Event x p
441+eventHold :: Hold x p -> Event x p
388eventHold !h = Event $ subscribeHoldEvent h
442eventHold !h = Event $ subscribeHoldEvent h
390eventDyn :: (HasSpiderTimeline x, Patch p) => Dyn x p -> Event x p
444eventDyn :: (HasSpiderTimeline x, Patch p) => Dyn x p -> Event x p
@@ -410,16 +464,6 @@ data Subscriber x a = Subscriber
410 , subscriberRecalculateHeight :: !(Height -> IO ())
464 , subscriberRecalculateHeight :: !(Height -> IO ())
413−--TODO: Move this comment to WeakBag
414−-- These function are constructor functions that are marked NOINLINE so they are
415−-- opaque to GHC. If we do not do this, then GHC will sometimes fuse the constructor away
416−-- so any weak references that are attached to the constructors will have their
417−-- finalizer run. Using the opaque constructor, does not see the
418−-- constructor application, so it behaves like an IORef and cannot be fused away.
420−-- The result is also evaluated to WHNF, since forcing a thunk invalidates
421−-- the weak pointer to it in some cases.
423newSubscriberHold :: (HasSpiderTimeline x, Patch p) => Hold x p -> IO (Subscriber x p)
467newSubscriberHold :: (HasSpiderTimeline x, Patch p) => Hold x p -> IO (Subscriber x p)
424newSubscriberHold h = return $ Subscriber
468newSubscriberHold h = return $ Subscriber
425 { subscriberPropagate = {-# SCC "traverseHold" #-} propagateSubscriberHold h
469 { subscriberPropagate = {-# SCC "traverseHold" #-} propagateSubscriberHold h
@@ -427,85 +471,68 @@ newSubscriberHold h = return $ Subscriber
427 , subscriberRecalculateHeight = \_ -> return ()
471 , subscriberRecalculateHeight = \_ -> return ()
430−newSubscriberFan :: forall x k. (HasSpiderTimeline x, GCompare k) => FanSubscribed x k -> IO (Subscriber x (DMap k Identity))
474+newSubscriberFan :: forall x k v. (HasSpiderTimeline x, GCompare k) => FanSubscribed x k v -> IO (Subscriber x (DMap k v))
431−newSubscriberFan subscribed = return $ Subscriber
475+newSubscriberFan subscribed = debugSubscriber ("SubscriberFan " <> showNodeId subscribed) $ Subscriber
432 { subscriberPropagate = \a -> {-# SCC "traverseFan" #-} do
476 { subscriberPropagate = \a -> {-# SCC "traverseFan" #-} do
433 subs <- liftIO $ readIORef $ fanSubscribedSubscribers subscribed
477 subs <- liftIO $ readIORef $ fanSubscribedSubscribers subscribed
434− 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"
435 liftIO $ writeIORef (fanSubscribedOccurrence subscribed) $ Just a
479 liftIO $ writeIORef (fanSubscribedOccurrence subscribed) $ Just a
436 scheduleClear $ fanSubscribedOccurrence subscribed
480 scheduleClear $ fanSubscribedOccurrence subscribed
437− let f _ (Pair (Identity v) subsubs) = do
481+ let f _ (Pair v subsubs) = do
438 propagate v $ _fanSubscribedChildren_list subsubs
482 propagate v $ _fanSubscribedChildren_list subsubs
439 return $ Constant ()
483 return $ Constant ()
440 _ <- 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_
441 return ()
485 return ()
442 , subscriberInvalidateHeight = \old -> do
486 , subscriberInvalidateHeight = \old -> do
443− when debugInvalidateHeight $ putStrLn $ "invalidateSubscriberHeight: SubscriberFan" <> showNodeId subscribed
444 subscribers <- readIORef $ fanSubscribedSubscribers subscribed
487 subscribers <- readIORef $ fanSubscribedSubscribers subscribed
445− 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
446− when debugInvalidateHeight $ putStrLn $ "invalidateSubscriberHeight: SubscriberFan" <> showNodeId subscribed <> " done"
447 , subscriberRecalculateHeight = \new -> do
489 , subscriberRecalculateHeight = \new -> do
448− when debugInvalidateHeight $ putStrLn $ "recalculateSubscriberHeight: SubscriberFan" <> showNodeId subscribed
449 subscribers <- readIORef $ fanSubscribedSubscribers subscribed
490 subscribers <- readIORef $ fanSubscribedSubscribers subscribed
450− 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
451− when debugInvalidateHeight $ putStrLn $ "recalculateSubscriberHeight: SubscriberFan" <> showNodeId subscribed <> " done"
454newSubscriberSwitch :: 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)
455−newSubscriberSwitch subscribed = return $ Subscriber
495+newSubscriberSwitch subscribed = debugSubscriber ("SubscriberCoincidenceOuter" <> showNodeId subscribed) $ Subscriber
456 { subscriberPropagate = \a -> {-# SCC "traverseSwitch" #-} do
496 { subscriberPropagate = \a -> {-# SCC "traverseSwitch" #-} do
457− tracePropagate (Proxy :: Proxy x) $ "SubscriberSwitch" <> showNodeId subscribed
458 liftIO $ writeIORef (switchSubscribedOccurrence subscribed) $ Just a
497 liftIO $ writeIORef (switchSubscribedOccurrence subscribed) $ Just a
459 scheduleClear $ switchSubscribedOccurrence subscribed
498 scheduleClear $ switchSubscribedOccurrence subscribed
460 propagate a $ switchSubscribedSubscribers subscribed
499 propagate a $ switchSubscribedSubscribers subscribed
461 , subscriberInvalidateHeight = \_ -> do
500 , subscriberInvalidateHeight = \_ -> do
462− when debugInvalidateHeight $ putStrLn $ "invalidateSubscriberHeight: SubscriberSwitch" <> showNodeId subscribed
463 oldHeight <- readIORef $ switchSubscribedHeight subscribed
501 oldHeight <- readIORef $ switchSubscribedHeight subscribed
464 when (oldHeight /= invalidHeight) $ do
502 when (oldHeight /= invalidHeight) $ do
465 writeIORef (switchSubscribedHeight subscribed) $! invalidHeight
503 writeIORef (switchSubscribedHeight subscribed) $! invalidHeight
466− WeakBag.traverse (switchSubscribedSubscribers subscribed) $ invalidateSubscriberHeight oldHeight
504+ WeakBag.traverse_ (switchSubscribedSubscribers subscribed) $ invalidateSubscriberHeight oldHeight
467− when debugInvalidateHeight $ putStrLn $ "invalidateSubscriberHeight: SubscriberSwitch" <> showNodeId subscribed <> " done"
468− , subscriberRecalculateHeight = \new -> do
505+ , subscriberRecalculateHeight = (`updateSwitchHeight` subscribed)
469− when debugInvalidateHeight $ putStrLn $ "recalculateSubscriberHeight: SubscriberSwitch" <> showNodeId subscribed
470− updateSwitchHeight new subscribed
471− when debugInvalidateHeight $ putStrLn $ "recalculateSubscriberHeight: SubscriberSwitch" <> showNodeId subscribed <> " done"
474newSubscriberCoincidenceOuter :: 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))
475−newSubscriberCoincidenceOuter subscribed = return $ Subscriber
509+newSubscriberCoincidenceOuter subscribed = debugSubscriber ("SubscriberCoincidenceOuter" <> showNodeId subscribed) $ Subscriber
476 { subscriberPropagate = \a -> {-# SCC "traverseCoincidenceOuter" #-} do
510 { subscriberPropagate = \a -> {-# SCC "traverseCoincidenceOuter" #-} do
477− tracePropagate (Proxy :: Proxy x) $ "SubscriberCoincidenceOuter" <> showNodeId subscribed
478 outerHeight <- liftIO $ readIORef $ coincidenceSubscribedHeight subscribed
511 outerHeight <- liftIO $ readIORef $ coincidenceSubscribedHeight subscribed
479 tracePropagate (Proxy :: Proxy x) $ " outerHeight = " <> show outerHeight
512 tracePropagate (Proxy :: Proxy x) $ " outerHeight = " <> show outerHeight
480 (occ, innerHeight, innerSubd) <- subscribeCoincidenceInner a outerHeight subscribed
513 (occ, innerHeight, innerSubd) <- subscribeCoincidenceInner a outerHeight subscribed
481 tracePropagate (Proxy :: Proxy x) $ " isJust occ = " <> show (isJust occ)
514 tracePropagate (Proxy :: Proxy x) $ " isJust occ = " <> show (isJust occ)
482 tracePropagate (Proxy :: Proxy x) $ " innerHeight = " <> show innerHeight
515 tracePropagate (Proxy :: Proxy x) $ " innerHeight = " <> show innerHeight
483 liftIO $ writeIORef (coincidenceSubscribedInnerParent subscribed) $ Just innerSubd
517 liftIO $ writeIORef (coincidenceSubscribedInnerParent subscribed) $ Just innerSubd
484 scheduleClear $ coincidenceSubscribedInnerParent subscribed
518 scheduleClear $ coincidenceSubscribedInnerParent subscribed
485 case occ of
519 case occ of
486− Nothing -> do
520+ Nothing ->
487 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
488 writeIORef (coincidenceSubscribedHeight subscribed) $! innerHeight
522 writeIORef (coincidenceSubscribedHeight subscribed) $! innerHeight
489− WeakBag.traverse (coincidenceSubscribedSubscribers subscribed) $ invalidateSubscriberHeight outerHeight
523+ WeakBag.traverse_ (coincidenceSubscribedSubscribers subscribed) $ invalidateSubscriberHeight outerHeight
490− WeakBag.traverse (coincidenceSubscribedSubscribers subscribed) $ recalculateSubscriberHeight innerHeight
524+ WeakBag.traverse_ (coincidenceSubscribedSubscribers subscribed) $ recalculateSubscriberHeight innerHeight
491 Just o -> do -- Since it's already firing, no need to adjust height
525 Just o -> do -- Since it's already firing, no need to adjust height
492 liftIO $ writeIORef (coincidenceSubscribedOccurrence subscribed) occ
526 liftIO $ writeIORef (coincidenceSubscribedOccurrence subscribed) occ
493 scheduleClear $ coincidenceSubscribedOccurrence subscribed
527 scheduleClear $ coincidenceSubscribedOccurrence subscribed
494 propagate o $ coincidenceSubscribedSubscribers subscribed
528 propagate o $ coincidenceSubscribedSubscribers subscribed
495− , subscriberInvalidateHeight = \_ -> do
496− when debugInvalidateHeight $ putStrLn $ "invalidateSubscriberHeight: SubscriberCoincidenceOuter" <> showNodeId subscribed
497− invalidateCoincidenceHeight subscribed
529+ , subscriberInvalidateHeight = \_ -> invalidateCoincidenceHeight subscribed
498− when debugInvalidateHeight $ putStrLn $ "invalidateSubscriberHeight: SubscriberCoincidenceOuter" <> showNodeId subscribed <> " done"
499− , subscriberRecalculateHeight = \_ -> do
500− when debugInvalidateHeight $ putStrLn $ "recalculateSubscriberHeight: SubscriberCoincidenceOuter" <> showNodeId subscribed
501− recalculateCoincidenceHeight subscribed
530+ , subscriberRecalculateHeight = \_ -> recalculateCoincidenceHeight subscribed
502− when debugInvalidateHeight $ putStrLn $ "recalculateSubscriberHeight: SubscriberCoincidenceOuter" <> showNodeId subscribed <> " done"
505newSubscriberCoincidenceInner :: 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)
506−newSubscriberCoincidenceInner subscribed = return $ Subscriber
534+newSubscriberCoincidenceInner subscribed = debugSubscriber ("SubscriberCoincidenceInner" <> showNodeId subscribed) $ Subscriber
507 { subscriberPropagate = \a -> {-# SCC "traverseCoincidenceInner" #-} do
535 { subscriberPropagate = \a -> {-# SCC "traverseCoincidenceInner" #-} do
508− tracePropagate (Proxy :: Proxy x) $ "SubscriberCoincidenceInner" <> showNodeId subscribed
509 occ <- liftIO $ readIORef $ coincidenceSubscribedOccurrence subscribed
536 occ <- liftIO $ readIORef $ coincidenceSubscribedOccurrence subscribed
510 case occ of
537 case occ of
511 Just _ -> return () -- SubscriberCoincidenceOuter must have already propagated this event
538 Just _ -> return () -- SubscriberCoincidenceOuter must have already propagated this event
@@ -513,14 +540,8 @@ newSubscriberCoincidenceInner subscribed = return $ Subscriber
513 liftIO $ writeIORef (coincidenceSubscribedOccurrence subscribed) $ Just a
540 liftIO $ writeIORef (coincidenceSubscribedOccurrence subscribed) $ Just a
514 scheduleClear $ coincidenceSubscribedOccurrence subscribed
541 scheduleClear $ coincidenceSubscribedOccurrence subscribed
515 propagate a $ coincidenceSubscribedSubscribers subscribed
542 propagate a $ coincidenceSubscribedSubscribers subscribed
516− , subscriberInvalidateHeight = \_ -> do
517− when debugInvalidateHeight $ putStrLn $ "invalidateSubscriberHeight: SubscriberCoincidenceInner" <> showNodeId subscribed
518− invalidateCoincidenceHeight subscribed
543+ , subscriberInvalidateHeight = \_ -> invalidateCoincidenceHeight subscribed
519− when debugInvalidateHeight $ putStrLn $ "invalidateSubscriberHeight: SubscriberCoincidenceInner" <> showNodeId subscribed <> " done"
520− , subscriberRecalculateHeight = \_ -> do
521− when debugInvalidateHeight $ putStrLn $ "recalculateSubscriberHeight: SubscriberCoincidenceInner" <> showNodeId subscribed
522− recalculateCoincidenceHeight subscribed
544+ , subscriberRecalculateHeight = \_ -> recalculateCoincidenceHeight subscribed
523− when debugInvalidateHeight $ putStrLn $ "recalculateSubscriberHeight: SubscriberCoincidenceInner" <> showNodeId subscribed <> " done"
526invalidateSubscriberHeight :: Height -> Subscriber x a -> IO ()
547invalidateSubscriberHeight :: Height -> Subscriber x a -> IO ()
@@ -530,18 +551,18 @@ recalculateSubscriberHeight :: Height -> Subscriber x a -> IO ()
530recalculateSubscriberHeight = flip subscriberRecalculateHeight
551recalculateSubscriberHeight = flip subscriberRecalculateHeight
532-- | Propagate everything at the current height
553-- | Propagate everything at the current height
533−propagate :: a -> WeakBag (Subscriber x a) -> EventM x ()
554+propagate :: forall x a. HasSpiderTimeline x => a -> WeakBag (Subscriber x a) -> EventM x ()
534−propagate a subscribers = withIncreasedDepth $ do
555+propagate a subscribers = withIncreasedDepth (Proxy::Proxy x) $
535 -- 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
536 --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
537− WeakBag.traverse subscribers $ \s -> subscriberPropagate s a
558+ WeakBag.traverse_ subscribers $ \s -> subscriberPropagate s a
539-- | Propagate everything at the current height
560-- | Propagate everything at the current height
540−propagateFast :: a -> FastWeakBag (Subscriber x a) -> EventM x ()
561+propagateFast :: forall x a. HasSpiderTimeline x => a -> FastWeakBag (Subscriber x a) -> EventM x ()
541−propagateFast a subscribers = withIncreasedDepth $ do
562+propagateFast a subscribers = withIncreasedDepth (Proxy::Proxy x) $
542 -- 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
543 --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
544− FastWeakBag.traverse subscribers $ \s -> subscriberPropagate s a
565+ FastWeakBag.traverse_ subscribers $ \s -> subscriberPropagate s a
546--------------------------------------------------------------------------------
567--------------------------------------------------------------------------------
547-- EventSubscribed
568-- EventSubscribed
@@ -550,11 +571,16 @@ propagateFast a subscribers = withIncreasedDepth $ do
550toAny :: a -> Any
571toAny :: a -> Any
551toAny = unsafeCoerce
572toAny = unsafeCoerce
574+-- Why do we use Any here, instead of just giving eventSubscribedRetained an
575+-- existential type? Sadly, GHC does not currently know how to unbox types
576+-- with existentially quantified fields. So instead we just coerce values
577+-- to type Any on the way in. Since we never coerce them back, this is
553data EventSubscribed x = EventSubscribed
579data EventSubscribed x = EventSubscribed
554 { eventSubscribedHeightRef :: {-# UNPACK #-} !(IORef Height)
580 { eventSubscribedHeightRef :: {-# UNPACK #-} !(IORef Height)
555 , eventSubscribedRetained :: {-# NOUNPACK #-} !Any
581 , eventSubscribedRetained :: {-# NOUNPACK #-} !Any
556#ifdef DEBUG_CYCLES
582#ifdef DEBUG_CYCLES
557− , eventSubscribedGetParents :: !(IO [Some (EventSubscribed x)]) -- For debugging loops
583+ , eventSubscribedGetParents :: !(IO [EventSubscribed x]) -- For debugging loops
558 , eventSubscribedHasOwnHeightRef :: !Bool
584 , eventSubscribedHasOwnHeightRef :: !Bool
559 , eventSubscribedWhoCreated :: !(IO [String])
585 , eventSubscribedWhoCreated :: !(IO [String])
@@ -581,13 +607,23 @@ eventSubscribedNever = EventSubscribed
581 , 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"]
585−eventSubscribedFan :: FanSubscribed x k -> EventSubscribed x
621+eventSubscribedFan :: FanSubscribed x k v -> EventSubscribed x
586eventSubscribedFan !subscribed = EventSubscribed
622eventSubscribedFan !subscribed = EventSubscribed
587 { eventSubscribedHeightRef = eventSubscribedHeightRef $ _eventSubscription_subscribed $ fanSubscribedParent subscribed
623 { eventSubscribedHeightRef = eventSubscribedHeightRef $ _eventSubscription_subscribed $ fanSubscribedParent subscribed
588 , eventSubscribedRetained = toAny subscribed
624 , eventSubscribedRetained = toAny subscribed
589#ifdef DEBUG_CYCLES
625#ifdef DEBUG_CYCLES
590− , eventSubscribedGetParents = return [Some.This $ _eventSubscription_subscribed $ fanSubscribedParent subscribed]
626+ , eventSubscribedGetParents = return [_eventSubscription_subscribed $ fanSubscribedParent subscribed]
591 , eventSubscribedHasOwnHeightRef = False
627 , eventSubscribedHasOwnHeightRef = False
592 , eventSubscribedWhoCreated = whoCreatedIORef $ fanSubscribedCachedSubscribed subscribed
628 , eventSubscribedWhoCreated = whoCreatedIORef $ fanSubscribedCachedSubscribed subscribed
@@ -600,7 +636,7 @@ eventSubscribedSwitch !subscribed = EventSubscribed
600#ifdef DEBUG_CYCLES
636#ifdef DEBUG_CYCLES
601 , eventSubscribedGetParents = do
637 , eventSubscribedGetParents = do
602 s <- readIORef $ switchSubscribedCurrentParent subscribed
638 s <- readIORef $ switchSubscribedCurrentParent subscribed
603− return [Some.This $ _eventSubscription_subscribed s]
639+ return [_eventSubscription_subscribed s]
604 , eventSubscribedHasOwnHeightRef = True
640 , eventSubscribedHasOwnHeightRef = True
605 , eventSubscribedWhoCreated = whoCreatedIORef $ switchSubscribedCachedSubscribed subscribed
641 , eventSubscribedWhoCreated = whoCreatedIORef $ switchSubscribedCachedSubscribed subscribed
@@ -613,8 +649,8 @@ eventSubscribedCoincidence !subscribed = EventSubscribed
613#ifdef DEBUG_CYCLES
649#ifdef DEBUG_CYCLES
614 , eventSubscribedGetParents = do
650 , eventSubscribedGetParents = do
615 innerSubscription <- readIORef $ coincidenceSubscribedInnerParent subscribed
651 innerSubscription <- readIORef $ coincidenceSubscribedInnerParent subscribed
616− let outerParent = Some.This $ _eventSubscription_subscribed $ coincidenceSubscribedOuterParent subscribed
652+ let outerParent = _eventSubscription_subscribed $ coincidenceSubscribedOuterParent subscribed
617− innerParents = maybeToList $ fmap Some.This innerSubscription
653+ innerParents = maybeToList $ innerSubscription
618 return $ outerParent : innerParents
654 return $ outerParent : innerParents
619 , eventSubscribedHasOwnHeightRef = True
655 , eventSubscribedHasOwnHeightRef = True
620 , eventSubscribedWhoCreated = whoCreatedIORef $ coincidenceSubscribedCachedSubscribed subscribed
656 , eventSubscribedWhoCreated = whoCreatedIORef $ coincidenceSubscribedCachedSubscribed subscribed
@@ -628,20 +664,20 @@ getEventSubscribedHeight es = readIORef $ eventSubscribedHeightRef es
628whoCreatedEventSubscribed :: EventSubscribed x -> IO [String]
664whoCreatedEventSubscribed :: EventSubscribed x -> IO [String]
629whoCreatedEventSubscribed = eventSubscribedWhoCreated
665whoCreatedEventSubscribed = eventSubscribedWhoCreated
631−walkInvalidHeightParents :: EventSubscribed x -> IO [Some (EventSubscribed x)]
667+walkInvalidHeightParents :: EventSubscribed x -> IO [EventSubscribed x]
632walkInvalidHeightParents s0 = do
668walkInvalidHeightParents s0 = do
633− subscribers <- flip execStateT mempty $ ($ Some.This s0) $ fix $ \loop (Some.This s) -> do
669+ subscribers <- flip execStateT mempty $ ($ s0) $ fix $ \loop s -> do
634 h <- liftIO $ readIORef $ eventSubscribedHeightRef s
670 h <- liftIO $ readIORef $ eventSubscribedHeightRef s
635 when (h == invalidHeight) $ do
671 when (h == invalidHeight) $ do
636 when (eventSubscribedHasOwnHeightRef s) $ liftIO $ writeIORef (eventSubscribedHeightRef s) $! invalidHeightBeingTraversed
672 when (eventSubscribedHasOwnHeightRef s) $ liftIO $ writeIORef (eventSubscribedHeightRef s) $! invalidHeightBeingTraversed
637− modify (Some.This s :)
673+ modify (s :)
638 mapM_ loop =<< liftIO (eventSubscribedGetParents s)
674 mapM_ loop =<< liftIO (eventSubscribedGetParents s)
639− forM_ subscribers $ \(Some.This s) -> writeIORef (eventSubscribedHeightRef s) $! invalidHeight
675+ forM_ subscribers $ \s -> writeIORef (eventSubscribedHeightRef s) $! invalidHeight
640 return subscribers
676 return subscribers
643{-# INLINE subscribeHoldEvent #-}
679{-# INLINE subscribeHoldEvent #-}
644−subscribeHoldEvent :: HasSpiderTimeline x => Hold x p -> Subscriber x p -> EventM x (EventSubscription x, Maybe p)
680+subscribeHoldEvent :: Hold x p -> Subscriber x p -> EventM x (EventSubscription x, Maybe p)
645subscribeHoldEvent = subscribeAndRead . holdEvent
681subscribeHoldEvent = subscribeAndRead . holdEvent
647--------------------------------------------------------------------------------
683--------------------------------------------------------------------------------
@@ -664,7 +700,7 @@ behaviorPull !p = Behavior $ do
664 val <- liftIO $ readIORef $ pullValue p
700 val <- liftIO $ readIORef $ pullValue p
665 case val of
701 case val of
666 Just subscribed -> do
702 Just subscribed -> do
667− askParentsRef >>= mapM_ (\r -> liftIO $ modifyIORef' r (SomeBehaviorSubscribed (BehaviorSubscribedPull subscribed) :))
703+ askParentsRef >>= mapM_ (\r -> liftIO $ modifyIORef' r (SomeBehaviorSubscribed (Some (BehaviorSubscribedPull subscribed)) :))
668 askInvalidator >>= mapM_ (\wi -> liftIO $ modifyIORef' (pullSubscribedInvalidators subscribed) (wi:))
704 askInvalidator >>= mapM_ (\wi -> liftIO $ modifyIORef' (pullSubscribedInvalidators subscribed) (wi:))
669 liftIO $ touch $ pullSubscribedOwnInvalidator subscribed
705 liftIO $ touch $ pullSubscribedOwnInvalidator subscribed
670 return $ pullSubscribedValue subscribed
706 return $ pullSubscribedValue subscribed
@@ -673,7 +709,7 @@ behaviorPull !p = Behavior $ do
673 wi <- liftIO $ mkWeakPtrWithDebug i "InvalidatorPull"
709 wi <- liftIO $ mkWeakPtrWithDebug i "InvalidatorPull"
674 parentsRef <- liftIO $ newIORef []
710 parentsRef <- liftIO $ newIORef []
675 holdInits <- askBehaviorHoldInits
711 holdInits <- askBehaviorHoldInits
676− a <- liftIO $ runReaderT (unBehaviorM $ pullCompute p) (Just (wi, parentsRef), holdInits)
712+ a <- liftIO $ runReaderIO (unBehaviorM $ pullCompute p) (Just (wi, parentsRef), holdInits)
677 invsRef <- liftIO . newIORef . maybeToList =<< askInvalidator
713 invsRef <- liftIO . newIORef . maybeToList =<< askInvalidator
678 parents <- liftIO $ readIORef parentsRef
714 parents <- liftIO $ readIORef parentsRef
679 let subscribed = PullSubscribed
715 let subscribed = PullSubscribed
@@ -683,7 +719,7 @@ behaviorPull !p = Behavior $ do
683 , pullSubscribedParents = parents
719 , pullSubscribedParents = parents
685 liftIO $ writeIORef (pullValue p) $ Just subscribed
721 liftIO $ writeIORef (pullValue p) $ Just subscribed
686− askParentsRef >>= mapM_ (\r -> liftIO $ modifyIORef' r (SomeBehaviorSubscribed (BehaviorSubscribedPull subscribed) :))
722+ askParentsRef >>= mapM_ (\r -> liftIO $ modifyIORef' r (SomeBehaviorSubscribed (Some (BehaviorSubscribedPull subscribed)) :))
689behaviorDyn :: Patch p => Dyn x p -> Behavior x (PatchTarget p)
725behaviorDyn :: Patch p => Dyn x p -> Behavior x (PatchTarget p)
@@ -694,7 +730,7 @@ readHoldTracked :: Hold x p -> BehaviorM x (PatchTarget p)
694readHoldTracked h = do
730readHoldTracked h = do
695 result <- liftIO $ readIORef $ holdValue h
731 result <- liftIO $ readIORef $ holdValue h
696 askInvalidator >>= mapM_ (\wi -> liftIO $ modifyIORef' (holdInvalidators h) (wi:))
732 askInvalidator >>= mapM_ (\wi -> liftIO $ modifyIORef' (holdInvalidators h) (wi:))
697− askParentsRef >>= mapM_ (\r -> liftIO $ modifyIORef' r (SomeBehaviorSubscribed (BehaviorSubscribedHold h) :))
733+ askParentsRef >>= mapM_ (\r -> liftIO $ modifyIORef' r (SomeBehaviorSubscribed (Some (BehaviorSubscribedHold h)) :))
698 liftIO $ touch h -- Otherwise, if this gets inlined enough, the hold's parent reference may get collected
734 liftIO $ touch h -- Otherwise, if this gets inlined enough, the hold's parent reference may get collected
699 return result
735 return result
@@ -708,42 +744,46 @@ readBehaviorUntracked b = do
708-- Dynamic
744-- Dynamic
709--------------------------------------------------------------------------------
745--------------------------------------------------------------------------------
747+type DynamicS x p = Dynamic x (PatchTarget p) p
711−data Dynamic x p = Dynamic
749+data Dynamic x target p = Dynamic
712− { dynamicCurrent :: !(Behavior x (PatchTarget p))
750+ { dynamicCurrent :: !(Behavior x target)
713− , dynamicUpdated :: !(Event x p)
751+ , dynamicUpdated :: Event x p -- This must be lazy; see the comment on holdEvent --TODO: Would this let us eliminate `Dyn`?
716−dynamicHold :: HasSpiderTimeline x => Hold x p -> Dynamic x p
754+deriving instance (HasSpiderTimeline x) => Functor (Dynamic x target)
759+dynamicHold :: Hold x p -> DynamicS x p
717dynamicHold !h = Dynamic
760dynamicHold !h = Dynamic
718 { dynamicCurrent = behaviorHold h
761 { dynamicCurrent = behaviorHold h
719 , dynamicUpdated = eventHold h
762 , dynamicUpdated = eventHold h
722−dynamicHoldIdentity :: HasSpiderTimeline x => Hold x (Identity a) -> Dynamic x (Identity a)
765+dynamicHoldIdentity :: Hold x (Identity a) -> DynamicS x (Identity a)
723dynamicHoldIdentity = dynamicHold
766dynamicHoldIdentity = dynamicHold
725−dynamicConst :: PatchTarget p -> Dynamic x p
768+dynamicConst :: PatchTarget p -> DynamicS x p
726dynamicConst !a = Dynamic
769dynamicConst !a = Dynamic
727 { dynamicCurrent = behaviorConst a
770 { dynamicCurrent = behaviorConst a
728 , dynamicUpdated = eventNever
771 , dynamicUpdated = eventNever
731−dynamicDyn :: (HasSpiderTimeline x, Patch p) => Dyn x p -> Dynamic x p
774+dynamicDyn :: (HasSpiderTimeline x, Patch p) => Dyn x p -> DynamicS x p
732dynamicDyn !d = Dynamic
775dynamicDyn !d = Dynamic
733 { dynamicCurrent = behaviorDyn d
776 { dynamicCurrent = behaviorDyn d
734 , dynamicUpdated = eventDyn d
777 , dynamicUpdated = eventDyn d
737−dynamicDynIdentity :: HasSpiderTimeline x => Dyn x (Identity a) -> Dynamic x (Identity a)
780+dynamicDynIdentity :: HasSpiderTimeline x => Dyn x (Identity a) -> DynamicS x (Identity a)
738dynamicDynIdentity = dynamicDyn
781dynamicDynIdentity = dynamicDyn
740--------------------------------------------------------------------------------
783--------------------------------------------------------------------------------
741-- Combinators
784-- Combinators
742--------------------------------------------------------------------------------
785--------------------------------------------------------------------------------
744−--TODO: Figure out why certain things are not 'representational', then make them
745−--representational so we can use coerce
747--type role Hold representational
787--type role Hold representational
748data Hold x p
788data Hold x p
749 = Hold { holdValue :: !(IORef (PatchTarget p))
789 = Hold { holdValue :: !(IORef (PatchTarget p))
@@ -764,20 +804,25 @@ globalSpiderTimelineEnv = unsafePerformIO unsafeNewSpiderTimelineEnv
765-- | Stores all global data relevant to a particular Spider timeline; only one
805-- | Stores all global data relevant to a particular Spider timeline; only one
766-- value should exist for each type @x@
806-- value should exist for each type @x@
807+newtype SpiderTimelineEnv x = STE {unSTE :: SpiderTimelineEnv' x}
808+-- We implement SpiderTimelineEnv with a newtype wrapper so
809+-- we can get the coercions we want safely.
810+type role SpiderTimelineEnv nominal
767−data SpiderTimelineEnv x = SpiderTimelineEnv
812+data SpiderTimelineEnv' x = SpiderTimelineEnv
768 { _spiderTimeline_lock :: {-# UNPACK #-} !(MVar ())
813 { _spiderTimeline_lock :: {-# UNPACK #-} !(MVar ())
769 , _spiderTimeline_eventEnv :: {-# UNPACK #-} !(EventEnv x)
814 , _spiderTimeline_eventEnv :: {-# UNPACK #-} !(EventEnv x)
770#ifdef DEBUG
815#ifdef DEBUG
771 , _spiderTimeline_depth :: {-# UNPACK #-} !(IORef Int)
816 , _spiderTimeline_depth :: {-# UNPACK #-} !(IORef Int)
774−type role SpiderTimelineEnv nominal
819+type role SpiderTimelineEnv' phantom
776instance Eq (SpiderTimelineEnv x) where
821instance Eq (SpiderTimelineEnv x) where
777 _ == _ = True -- Since only one exists of each type
822 _ == _ = True -- Since only one exists of each type
779instance GEq SpiderTimelineEnv where
824instance GEq SpiderTimelineEnv where
780− a `geq` b = if _spiderTimeline_lock a == _spiderTimeline_lock b
825+ a `geq` b = if _spiderTimeline_lock (unSTE a) == _spiderTimeline_lock (unSTE b)
781 then Just $ unsafeCoerce Refl -- This unsafeCoerce is safe because the same SpiderTimelineEnv can't have two different 'x' arguments
826 then Just $ unsafeCoerce Refl -- This unsafeCoerce is safe because the same SpiderTimelineEnv can't have two different 'x' arguments
782 else Nothing
827 else Nothing
@@ -787,9 +832,9 @@ data EventEnv x
787 , eventEnvDynInits :: !(IORef [SomeDynInit x])
832 , eventEnvDynInits :: !(IORef [SomeDynInit x])
788 , eventEnvMergeUpdates :: !(IORef [SomeMergeUpdate x])
833 , eventEnvMergeUpdates :: !(IORef [SomeMergeUpdate x])
789 , eventEnvMergeInits :: !(IORef [SomeMergeInit x]) -- Needed for Subscribe
834 , eventEnvMergeInits :: !(IORef [SomeMergeInit x]) -- Needed for Subscribe
790− , eventEnvClears :: !(IORef [SomeClear]) -- Needed for Subscribe
835+ , eventEnvClears :: !(IORef [Some Clear]) -- Needed for Subscribe
791− , eventEnvIntClears :: !(IORef [SomeIntClear])
836+ , eventEnvIntClears :: !(IORef [Some IntClear])
792− , eventEnvRootClears :: !(IORef [SomeRootClear])
837+ , eventEnvRootClears :: !(IORef [Some RootClear])
793 , eventEnvCurrentHeight :: !(IORef Height) -- Needed for Subscribe
838 , eventEnvCurrentHeight :: !(IORef Height) -- Needed for Subscribe
794 , eventEnvResetCoincidences :: !(IORef [SomeResetCoincidence x]) -- Needed for Subscribe
839 , eventEnvResetCoincidences :: !(IORef [SomeResetCoincidence x]) -- Needed for Subscribe
795 , eventEnvDelayedMerges :: !(IORef (IntMap [EventM x ()]))
840 , eventEnvDelayedMerges :: !(IORef (IntMap [EventM x ()]))
@@ -800,7 +845,7 @@ runEventM :: EventM x a -> IO a
800runEventM = unEventM
845runEventM = unEventM
802asksEventEnv :: forall x a. HasSpiderTimeline x => (EventEnv x -> a) -> EventM x a
847asksEventEnv :: forall x a. HasSpiderTimeline x => (EventEnv x -> a) -> EventM x a
803−asksEventEnv f = return $ f $ _spiderTimeline_eventEnv (spiderTimeline :: SpiderTimelineEnv x)
848+asksEventEnv f = return $ f $ _spiderTimeline_eventEnv (unSTE (spiderTimeline :: SpiderTimelineEnv x))
805class MonadIO m => Defer a m where
850class MonadIO m => Defer a m where
806 getDeferralQueue :: m (IORef [a])
851 getDeferralQueue :: m (IORef [a])
@@ -861,29 +906,29 @@ putCurrentHeight h = do
861 heightRef <- asksEventEnv eventEnvCurrentHeight
906 heightRef <- asksEventEnv eventEnvCurrentHeight
862 liftIO $ writeIORef heightRef $! h
907 liftIO $ writeIORef heightRef $! h
864−instance HasSpiderTimeline x => Defer SomeClear (EventM x) where
909+instance HasSpiderTimeline x => Defer (Some Clear) (EventM x) where
865 {-# INLINE getDeferralQueue #-}
910 {-# INLINE getDeferralQueue #-}
866 getDeferralQueue = asksEventEnv eventEnvClears
911 getDeferralQueue = asksEventEnv eventEnvClears
868{-# INLINE scheduleClear #-}
913{-# INLINE scheduleClear #-}
869−scheduleClear :: Defer SomeClear m => IORef (Maybe a) -> m ()
914+scheduleClear :: Defer (Some Clear) m => IORef (Maybe a) -> m ()
870−scheduleClear r = defer $ SomeClear r
915+scheduleClear r = defer $ Some $ Clear r
872−instance HasSpiderTimeline x => Defer SomeIntClear (EventM x) where
917+instance HasSpiderTimeline x => Defer (Some IntClear) (EventM x) where
873 {-# INLINE getDeferralQueue #-}
918 {-# INLINE getDeferralQueue #-}
874 getDeferralQueue = asksEventEnv eventEnvIntClears
919 getDeferralQueue = asksEventEnv eventEnvIntClears
876{-# INLINE scheduleIntClear #-}
921{-# INLINE scheduleIntClear #-}
877−scheduleIntClear :: Defer SomeIntClear m => IORef (IntMap a) -> m ()
922+scheduleIntClear :: Defer (Some IntClear) m => IORef (IntMap a) -> m ()
878−scheduleIntClear r = defer $ SomeIntClear r
923+scheduleIntClear r = defer $ Some $ IntClear r
880−instance HasSpiderTimeline x => Defer SomeRootClear (EventM x) where
925+instance HasSpiderTimeline x => Defer (Some RootClear) (EventM x) where
881 {-# INLINE getDeferralQueue #-}
926 {-# INLINE getDeferralQueue #-}
882 getDeferralQueue = asksEventEnv eventEnvRootClears
927 getDeferralQueue = asksEventEnv eventEnvRootClears
884{-# INLINE scheduleRootClear #-}
929{-# INLINE scheduleRootClear #-}
885−scheduleRootClear :: Defer SomeRootClear m => IORef (DMap k Identity) -> m ()
930+scheduleRootClear :: Defer (Some RootClear) m => IORef (DMap k Identity) -> m ()
886−scheduleRootClear r = defer $ SomeRootClear r
931+scheduleRootClear r = defer $ Some $ RootClear r
888instance HasSpiderTimeline x => Defer (SomeResetCoincidence x) (EventM x) where
933instance HasSpiderTimeline x => Defer (SomeResetCoincidence x) (EventM x) where
889 {-# INLINE getDeferralQueue #-}
934 {-# INLINE getDeferralQueue #-}
@@ -938,9 +983,9 @@ getHoldEventSubscription h = do
939type BehaviorEnv x = (Maybe (Weak (Invalidator x), IORef [SomeBehaviorSubscribed x]), IORef [SomeHoldInit x])
984type BehaviorEnv x = (Maybe (Weak (Invalidator x), IORef [SomeBehaviorSubscribed x]), IORef [SomeHoldInit x])
941−--type role BehaviorM representational
942-- BehaviorM can sample behaviors
986-- BehaviorM can sample behaviors
943−newtype BehaviorM x a = BehaviorM { unBehaviorM :: ReaderT (BehaviorEnv x) IO a } deriving (Functor, Applicative, MonadIO, MonadFix)
987+newtype BehaviorM x a = BehaviorM { unBehaviorM :: ReaderIO (BehaviorEnv x) a }
988+ deriving (Functor, Applicative, MonadIO, MonadFix, MonadReader (BehaviorEnv x))
945instance Monad (BehaviorM x) where
990instance Monad (BehaviorM x) where
946 {-# INLINE (>>=) #-}
991 {-# INLINE (>>=) #-}
@@ -949,14 +994,16 @@ instance Monad (BehaviorM x) where
949 BehaviorM x >> BehaviorM y = BehaviorM $ x >> y
994 BehaviorM x >> BehaviorM y = BehaviorM $ x >> y
950 {-# INLINE return #-}
995 {-# INLINE return #-}
951 return x = BehaviorM $ return x
996 return x = BehaviorM $ return x
997+#if !MIN_VERSION_base(4,13,0)
952 {-# INLINE fail #-}
998 {-# INLINE fail #-}
953 fail s = BehaviorM $ fail s
999 fail s = BehaviorM $ fail s
955data BehaviorSubscribed x a
1002data BehaviorSubscribed x a
956 = forall p. BehaviorSubscribedHold (Hold x p)
1003 = forall p. BehaviorSubscribedHold (Hold x p)
957 | BehaviorSubscribedPull (PullSubscribed x a)
1004 | BehaviorSubscribedPull (PullSubscribed x a)
959−data SomeBehaviorSubscribed x = forall a. SomeBehaviorSubscribed (BehaviorSubscribed x a)
1006+newtype SomeBehaviorSubscribed x = SomeBehaviorSubscribed (Some (BehaviorSubscribed x))
961--type role PullSubscribed representational
1008--type role PullSubscribed representational
962data PullSubscribed x a
1009data PullSubscribed x a
@@ -991,7 +1038,7 @@ data RootSubscribed x a = forall k. GCompare k => RootSubscribed
994−data Root x (k :: * -> *)
1041+data Root x k
995 = Root { rootOccurrence :: !(IORef (DMap k Identity)) -- The currently-firing occurrence of this event
1042 = Root { rootOccurrence :: !(IORef (DMap k Identity)) -- The currently-firing occurrence of this event
996 , rootSubscribed :: !(IORef (DMap k (RootSubscribed x)))
1043 , rootSubscribed :: !(IORef (DMap k (RootSubscribed x)))
997 , rootInit :: !(forall a. k a -> RootTrigger x a -> IO (IO ()))
1044 , rootInit :: !(forall a. k a -> RootTrigger x a -> IO (IO ()))
@@ -1010,7 +1057,7 @@ data SomeMergeUpdate x = SomeMergeUpdate
1010newtype SomeMergeInit x = SomeMergeInit { unSomeMergeInit :: EventM x () }
1057newtype SomeMergeInit x = SomeMergeInit { unSomeMergeInit :: EventM x () }
1012-- EventM can do everything BehaviorM can, plus create holds
1059-- EventM can do everything BehaviorM can, plus create holds
1013−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)
1015newtype MergeSubscribedParent x a = MergeSubscribedParent { unMergeSubscribedParent :: EventSubscription x }
1062newtype MergeSubscribedParent x a = MergeSubscribedParent { unMergeSubscribedParent :: EventSubscription x }
@@ -1035,7 +1082,8 @@ heightBagFromList :: [Height] -> HeightBag
1035heightBagFromList heights = heightBagVerify $ foldl' (flip heightBagAdd) heightBagEmpty heights
1082heightBagFromList heights = heightBagVerify $ foldl' (flip heightBagAdd) heightBagEmpty heights
1037heightBagAdd :: Height -> HeightBag -> HeightBag
1084heightBagAdd :: Height -> HeightBag -> HeightBag
1038−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
1040heightBagRemove :: Height -> HeightBag -> HeightBag
1088heightBagRemove :: Height -> HeightBag -> HeightBag
1041heightBagRemove (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
@@ -1044,6 +1092,13 @@ heightBagRemove (Height h) b@(HeightBag s c) = heightBagVerify $ case IntMap.loo
1044 0 -> IntMap.delete h c
1092 0 -> IntMap.delete h c
1045 _ -> 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
1047heightBagMax :: HeightBag -> Height
1102heightBagMax :: HeightBag -> Height
1048heightBagMax (HeightBag _ c) = case IntMap.maxViewWithKey c of
1103heightBagMax (HeightBag _ c) = case IntMap.maxViewWithKey c of
1049 Just ((h, _), _) -> Height h
1104 Just ((h, _), _) -> Height h
@@ -1061,25 +1116,25 @@ heightBagVerify b@(HeightBag s c) = if
1061heightBagVerify = id
1116heightBagVerify = id
1064−data FanSubscribedChildren (x :: *) k a = FanSubscribedChildren
1119+data FanSubscribedChildren x k v a = FanSubscribedChildren
1065− { _fanSubscribedChildren_list :: !(WeakBag (Subscriber x a))
1120+ { _fanSubscribedChildren_list :: !(WeakBag (Subscriber x (v a)))
1066− , _fanSubscribedChildren_self :: {-# NOUNPACK #-} !(k a, FanSubscribed x k)
1121+ , _fanSubscribedChildren_self :: {-# NOUNPACK #-} !(k a, FanSubscribed x k v)
1067− , _fanSubscribedChildren_weakSelf :: !(IORef (Weak (k a, FanSubscribed x k)))
1122+ , _fanSubscribedChildren_weakSelf :: !(IORef (Weak (k a, FanSubscribed x k v)))
1070−data FanSubscribed (x :: *) k
1125+data FanSubscribed x k v
1071− = FanSubscribed { fanSubscribedCachedSubscribed :: !(IORef (Maybe (FanSubscribed x k)))
1126+ = FanSubscribed { fanSubscribedCachedSubscribed :: !(IORef (Maybe (FanSubscribed x k v)))
1072− , fanSubscribedOccurrence :: !(IORef (Maybe (DMap k Identity)))
1127+ , fanSubscribedOccurrence :: !(IORef (Maybe (DMap k v)))
1073− , fanSubscribedSubscribers :: !(IORef (DMap k (FanSubscribedChildren x k))) -- This DMap should never be empty
1128+ , fanSubscribedSubscribers :: !(IORef (DMap k (FanSubscribedChildren x k v))) -- This DMap should never be empty
1074 , fanSubscribedParent :: !(EventSubscription x)
1129 , fanSubscribedParent :: !(EventSubscription x)
1075#ifdef DEBUG_NODEIDS
1130#ifdef DEBUG_NODEIDS
1076 , fanSubscribedNodeId :: Int
1131 , fanSubscribedNodeId :: Int
1080−data Fan x k
1135+data Fan x k v
1081− = Fan { fanParent :: !(Event x (DMap k Identity))
1136+ = Fan { fanParent :: !(Event x (DMap k v))
1082− , fanSubscribed :: !(IORef (Maybe (FanSubscribed x k)))
1137+ , fanSubscribed :: !(IORef (Maybe (FanSubscribed x k v)))
1085data SwitchSubscribed x a
1140data SwitchSubscribed x a
@@ -1133,20 +1188,35 @@ newInvalidatorSwitch subd = return $! InvalidatorSwitch subd
1133newInvalidatorPull :: Pull x a -> IO (Invalidator x)
1188newInvalidatorPull :: Pull x a -> IO (Invalidator x)
1134newInvalidatorPull p = return $! InvalidatorPull p
1189newInvalidatorPull p = return $! InvalidatorPull p
1136−instance HasSpiderTimeline x => FunctorMaybe (Event x) where
1191+instance HasSpiderTimeline x => Filterable (Event x) where
1137− fmapMaybe f = push $ return . f
1192+ mapMaybe f = push $ return . f
1139instance HasSpiderTimeline x => Align (Event x) where
1194instance HasSpiderTimeline x => Align (Event x) where
1140 nil = eventNever
1195 nil = eventNever
1196+#if MIN_VERSION_these(0, 8, 0)
1197+instance HasSpiderTimeline x => Semialign (Event x) where
1199+ align ea eb = mapMaybe dmapToThese $ mergeG coerce $ dynamicConst $
1141− align ea eb = fmapMaybe dmapToThese $ merge $ dynamicConst $ DMap.fromDistinctAscList [LeftTag :=> ea, RightTag :=> eb]
1200+ DMap.fromDistinctAscList [LeftTag :=> ea, RightTag :=> eb]
1143−newtype Dyn x p = Dyn { unDyn :: IORef (Either (BehaviorM x (PatchTarget p), Event x p) (Hold x p)) }
1202+#ifdef MIN_VERSION_semialign
1203+#if MIN_VERSION_semialign(1,1,0)
1204+instance HasSpiderTimeline x => Zip (Event x) where
1206+ zip x y = mapMaybe justThese $ align x y
1209+data DynType x p = UnsafeDyn !(BehaviorM x (PatchTarget p), Event x p)
1210+ | BuildDyn !(EventM x (PatchTarget p), Event x p)
1211+ | HoldDyn !(Hold x p)
1213+newtype Dyn (x :: Type) p = Dyn { unDyn :: IORef (DynType x p) }
1145−newMapDyn :: HasSpiderTimeline x => (a -> b) -> Dynamic x (Identity a) -> Dynamic x (Identity b)
1215+newMapDyn :: HasSpiderTimeline x => (a -> b) -> DynamicS x (Identity a) -> DynamicS x (Identity b)
1146newMapDyn f d = dynamicDynIdentity $ unsafeBuildDynamic (fmap f $ readBehaviorTracked $ dynamicCurrent d) (Identity . f . runIdentity <$> dynamicUpdated d)
1216newMapDyn f d = dynamicDynIdentity $ unsafeBuildDynamic (fmap f $ readBehaviorTracked $ dynamicCurrent d) (Identity . f . runIdentity <$> dynamicUpdated d)
1148--TODO: Avoid the duplication between this and R.zipDynWith
1218--TODO: Avoid the duplication between this and R.zipDynWith
1149−zipDynWith :: HasSpiderTimeline x => (a -> b -> c) -> Dynamic x (Identity a) -> Dynamic x (Identity b) -> Dynamic x (Identity c)
1219+zipDynWith :: HasSpiderTimeline x => (a -> b -> c) -> DynamicS x (Identity a) -> DynamicS x (Identity b) -> DynamicS x (Identity c)
1150zipDynWith f da db =
1220zipDynWith f da db =
1151 let eab = align (dynamicUpdated da) (dynamicUpdated db)
1221 let eab = align (dynamicUpdated da) (dynamicUpdated db)
1152 ec = flip push eab $ \o -> do
1222 ec = flip push eab $ \o -> do
@@ -1161,26 +1231,20 @@ zipDynWith f da db =
1161 return $ Just $ Identity $ f a b
1231 return $ Just $ Identity $ f a b
1162 in dynamicDynIdentity $ unsafeBuildDynamic (f <$> readBehaviorUntracked (dynamicCurrent da) <*> readBehaviorUntracked (dynamicCurrent db)) ec
1232 in dynamicDynIdentity $ unsafeBuildDynamic (f <$> readBehaviorUntracked (dynamicCurrent da) <*> readBehaviorUntracked (dynamicCurrent db)) ec
1164−buildDynamic :: (Defer (SomeDynInit x) m, Patch p) => BehaviorM x (PatchTarget p) -> Event x p -> m (Dyn x p)
1234+buildDynamic :: (Defer (SomeDynInit x) m, Patch p) => EventM x (PatchTarget p) -> Event x p -> m (Dyn x p)
1165buildDynamic readV0 v' = do
1235buildDynamic readV0 v' = do
1166− result <- liftIO $ newIORef $ Left (readV0, v')
1236+ result <- liftIO $ newIORef $ BuildDyn (readV0, v')
1167 let !d = Dyn result
1237 let !d = Dyn result
1168 defer $ SomeDynInit d
1238 defer $ SomeDynInit d
1169 return d
1239 return d
1171unsafeBuildDynamic :: BehaviorM x (PatchTarget p) -> Event x p -> Dyn x p
1241unsafeBuildDynamic :: BehaviorM x (PatchTarget p) -> Event x p -> Dyn x p
1172−unsafeBuildDynamic readV0 v' = Dyn $ unsafeNewIORef x $ Left x
1242+unsafeBuildDynamic readV0 v' =
1173− where x = (readV0, v')
1243+ Dyn $ unsafePerformIO $ newIORef $ UnsafeDyn (readV0, v')
1175-- ResultM can read behaviors and events
1245-- ResultM can read behaviors and events
1176type ResultM = EventM
1246type ResultM = EventM
1178−{-# NOINLINE unsafeNewIORef #-}
1179−unsafeNewIORef :: a -> b -> IORef b
1180−unsafeNewIORef a b = unsafePerformIO $ do
1184instance HasSpiderTimeline x => Functor (Event x) where
1248instance HasSpiderTimeline x => Functor (Event x) where
1185 fmap f = push $ return . Just . f
1249 fmap f = push $ return . Just . f
@@ -1193,33 +1257,42 @@ push f e = cacheEvent (pushCheap f e)
1194{-# INLINABLE pull #-}
1258{-# INLINABLE pull #-}
1195pull :: BehaviorM x a -> Behavior x a
1259pull :: BehaviorM x a -> Behavior x a
1196−pull a = behaviorPull $ Pull
1260+pull a = unsafePerformIO $ do
1197− { pullCompute = a
1261+ ref <- newIORef Nothing
1198− , pullValue = unsafeNewIORef a Nothing
1199#ifdef DEBUG_NODEIDS
1262#ifdef DEBUG_NODEIDS
1200− , pullNodeId = unsafeNodeId a
1263+ nid <- newNodeId
1265+ pure $ behaviorPull $ Pull
1268+#ifdef DEBUG_NODEIDS
1204{-# INLINABLE switch #-}
1273{-# INLINABLE switch #-}
1205switch :: HasSpiderTimeline x => Behavior x (Event x a) -> Event x a
1274switch :: HasSpiderTimeline x => Behavior x (Event x a) -> Event x a
1275+switch a = unsafePerformIO $ do
1276+ ref <- newIORef Nothing
1206−switch a = eventSwitch $ Switch
1277+ pure $ eventSwitch $ Switch
1207− { switchParent = a
1278+ { switchParent = a
1208− , switchSubscribed = unsafeNewIORef a Nothing
1279+ , switchSubscribed = ref
1211coincidence :: HasSpiderTimeline x => Event x (Event x a) -> Event x a
1282coincidence :: HasSpiderTimeline x => Event x (Event x a) -> Event x a
1283+coincidence a = unsafePerformIO $ do
1284+ ref <- newIORef Nothing
1212−coincidence a = eventCoincidence $ Coincidence
1285+ pure $ eventCoincidence $ Coincidence
1213− { coincidenceParent = a
1286+ { coincidenceParent = a
1214− , coincidenceSubscribed = unsafeNewIORef a Nothing
1287+ , coincidenceSubscribed = ref
1217-- Propagate the given event occurrence; before cleaning up, run the given action, which may read the state of events and behaviors
1290-- Propagate the given event occurrence; before cleaning up, run the given action, which may read the state of events and behaviors
1218run :: forall x b. HasSpiderTimeline x => [DSum (RootTrigger x) Identity] -> ResultM x b -> SpiderHost x b
1291run :: forall x b. HasSpiderTimeline x => [DSum (RootTrigger x) Identity] -> ResultM x b -> SpiderHost x b
1219run roots after = do
1292run roots after = do
1220 tracePropagate (Proxy :: Proxy x) $ "Running an event frame with " <> show (length roots) <> " events"
1293 tracePropagate (Proxy :: Proxy x) $ "Running an event frame with " <> show (length roots) <> " events"
1221− t <- SpiderHost ask
1294+ let t = spiderTimeline :: SpiderTimelineEnv x
1222− result <- SpiderHost $ lift $ withMVar (_spiderTimeline_lock t) $ \_ -> flip runReaderT t $ unSpiderHost $ runFrame $ do
1295+ result <- SpiderHost $ withMVar (_spiderTimeline_lock (unSTE t)) $ \_ -> unSpiderHost $ runFrame $ do
1223 rootsToPropagate <- forM roots $ \r@(RootTrigger (_, occRef, k) :=> a) -> do
1296 rootsToPropagate <- forM roots $ \r@(RootTrigger (_, occRef, k) :=> a) -> do
1224 occBefore <- liftIO $ do
1297 occBefore <- liftIO $ do
1225 occBefore <- readIORef occRef
1298 occBefore <- readIORef occRef
@@ -1257,11 +1330,11 @@ scheduleMerge' initialHeight heightRef a = scheduleMerge initialHeight $ do
1257 GT -> scheduleMerge' height heightRef a -- The height has been increased (by a coincidence event; TODO: is this the only way?)
1330 GT -> scheduleMerge' height heightRef a -- The height has been increased (by a coincidence event; TODO: is this the only way?)
1260−data SomeClear = forall a. SomeClear {-# UNPACK #-} !(IORef (Maybe a))
1333+newtype Clear a = Clear (IORef (Maybe a))
1262−data SomeIntClear = forall a. SomeIntClear {-# UNPACK #-} !(IORef (IntMap a))
1335+newtype IntClear a = IntClear (IORef (IntMap a))
1264−data SomeRootClear = forall k. SomeRootClear {-# UNPACK #-} !(IORef (DMap k Identity))
1337+newtype RootClear k = RootClear (IORef (DMap k Identity))
1266data SomeAssignment x = forall a. SomeAssignment {-# UNPACK #-} !(IORef a) {-# UNPACK #-} !(IORef [Weak (Invalidator x)]) a
1339data SomeAssignment x = forall a. SomeAssignment {-# UNPACK #-} !(IORef a) {-# UNPACK #-} !(IORef [Weak (Invalidator x)]) a
@@ -1273,55 +1346,110 @@ mkWeakPtrWithDebug x debugNote = do
1273 x' <- evaluate x
1346 x' <- evaluate x
1274 mkWeakPtr x' $
1347 mkWeakPtr x' $
1275 if debugFinalize
1348 if debugFinalize
1276− then Just $ putStrLn $ "finalizing: " ++ debugNote
1349+ then Just $ debugStrLn $ "finalizing: " ++ debugNote
1277 else Nothing
1350 else Nothing
1279type WeakList a = [Weak a]
1352type WeakList a = [Weak a]
1281−{-# INLINE withIncreasedDepth #-}
1354+type CanTrace x m = (HasSpiderTimeline x, MonadIO m)
1282#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"
1283−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
1284−withIncreasedDepth a = do
1383+withIncreasedDepth _ a = do
1285− spiderTimeline <- askSpiderTimelineEnv
1286− liftIO $ modifyIORef' (_spiderTimeline_depth spiderTimeline) succ
1384+ liftIO $ modifyIORef' (_spiderTimeline_depth $ unSTE (spiderTimeline :: SpiderTimelineEnv x)) succ
1287 result <- a
1385 result <- a
1288− liftIO $ modifyIORef' (_spiderTimeline_depth spiderTimeline) pred
1386+ liftIO $ modifyIORef' (_spiderTimeline_depth $ unSTE (spiderTimeline :: SpiderTimelineEnv x)) pred
1289 return result
1387 return result
1291−withIncreasedDepth :: m a -> m a
1292−withIncreasedDepth = id
1295−type CanTrace x m = (HasSpiderTimeline x, MonadIO m)
1297{-# INLINE tracePropagate #-}
1389{-# INLINE tracePropagate #-}
1298tracePropagate :: (CanTrace x m) => proxy x -> String -> m ()
1390tracePropagate :: (CanTrace x m) => proxy x -> String -> m ()
1299−tracePropagate p = traceWhen p debugPropagate
1391+tracePropagate p = when debugPropagate . trace p
1301{-# INLINE traceInvalidate #-}
1393{-# INLINE traceInvalidate #-}
1302traceInvalidate :: String -> IO ()
1394traceInvalidate :: String -> IO ()
1303−traceInvalidate = when debugInvalidate . liftIO . putStrLn
1395+traceInvalidate = when debugInvalidate . liftIO . debugStrLn
1305−{-# INLINE traceWhen #-}
1397+{-# INLINE traceInvalidateHeight #-}
1306−traceWhen :: (CanTrace x m) => proxy x -> Bool -> String -> m ()
1398+traceInvalidateHeight :: String -> IO ()
1307−traceWhen p b message = traceMWhen p b $ return message
1399+traceInvalidateHeight = when debugInvalidateHeight . liftIO . debugStrLn
1309−{-# INLINE traceMWhen #-}
1401+{-# INLINE trace #-}
1310−traceMWhen :: (CanTrace x m) => proxy x -> Bool -> m String -> m ()
1402+trace :: (CanTrace x m) => proxy x -> String -> m ()
1403+trace p message = traceM p $ return message
1405+{-# INLINE traceM #-}
1406+traceM :: forall x proxy m. (CanTrace x m) => proxy x -> m String -> m ()
1311−traceMWhen _ b getMessage = when b $ do
1407+traceM _ getMessage = do
1312 message <- getMessage
1408 message <- getMessage
1314− spiderTimeline <- askSpiderTimelineEnv
1315− d <- liftIO $ readIORef $ _spiderTimeline_depth spiderTimeline
1409+ d <- liftIO $ readIORef $ _spiderTimeline_depth $ unSTE (spiderTimeline :: SpiderTimelineEnv x)
1410+ liftIO $ debugStrLn $ replicate d ' ' <> message
1414+{-# INLINE withIncreasedDepth #-}
1415+withIncreasedDepth :: proxy x -> m a -> m a
1416+withIncreasedDepth _ = id
1418+{-# INLINE tracePropagate #-}
1419+tracePropagate :: (CanTrace x m) => proxy x -> String -> m ()
1420+tracePropagate _ _ = return ()
1422+{-# INLINE traceInvalidate #-}
1423+traceInvalidate :: String -> IO ()
1424+traceInvalidate _ = return ()
1426+{-# INLINE traceInvalidateHeight #-}
1427+traceInvalidateHeight :: String -> IO ()
1428+traceInvalidateHeight _ = return ()
1430+{-# INLINE debugSubscriber #-}
1431+debugSubscriber :: String -> Subscriber x a -> IO (Subscriber x a)
1432+debugSubscriber _ = return
1434+{-# INLINE debugSubscriber' #-}
1435+debugSubscriber' :: String -> Subscriber x a -> Subscriber x a
1436+debugSubscriber' _ = id
1440+{-# INLINE trace #-}
1441+trace :: (CanTrace x m) => proxy x -> String -> m ()
1442+trace _ _ = return ()
1444+{-# INLINE traceM #-}
1445+traceM :: (CanTrace x m) => proxy x -> m String -> m ()
1446+traceM _ _ = return ()
1319− liftIO $ putStrLn $ replicate d ' ' <> message
1321whoCreatedIORef :: IORef a -> IO [String]
1450whoCreatedIORef :: IORef a -> IO [String]
1322whoCreatedIORef (IORef a) = whoCreated $! a
1451whoCreatedIORef (IORef a) = whoCreated $! a
1325groupByHead :: Eq a => [NonEmpty a] -> [(a, NonEmpty [a])]
1453groupByHead :: Eq a => [NonEmpty a] -> [(a, NonEmpty [a])]
1326groupByHead = \case
1454groupByHead = \case
1327 [] -> []
1455 [] -> []
@@ -1332,20 +1460,54 @@ groupByHead = \case
1332 | otherwise -> (x, xs :| []) : l
1460 | otherwise -> (x, xs :| []) : l
1334listsToForest :: Eq a => [[a]] -> Forest a
1462listsToForest :: Eq a => [[a]] -> Forest a
1335−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"
1338{-# INLINE propagateSubscriberHold #-}
1498{-# INLINE propagateSubscriberHold #-}
1339propagateSubscriberHold :: 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 ()
1340propagateSubscriberHold h a = do
1500propagateSubscriberHold h a = do
1341− {-# SCC "trace" #-} traceMWhen (Proxy :: Proxy x) debugPropagate $ liftIO $ do
1501+ {-# SCC "trace" #-} when debugPropagate $ traceM (Proxy :: Proxy x) $ liftIO $ do
1342 invalidators <- liftIO $ readIORef $ holdInvalidators h
1502 invalidators <- liftIO $ readIORef $ holdInvalidators h
1343 return $ "SubscriberHold" <> showNodeId h <> ": " ++ show (length invalidators)
1503 return $ "SubscriberHold" <> showNodeId h <> ": " ++ show (length invalidators)
1344 v <- {-# SCC "read" #-} liftIO $ readIORef $ holdValue h
1505 v <- {-# SCC "read" #-} liftIO $ readIORef $ holdValue h
1345 case {-# SCC "apply" #-} apply a v of
1506 case {-# SCC "apply" #-} apply a v of
1346 Nothing -> return ()
1507 Nothing -> return ()
1347 Just v' -> do
1508 Just v' -> do
1509+ {-# SCC "trace2" #-} withIncreasedDepth (Proxy :: Proxy x) $
1348− {-# SCC "trace2" #-} withIncreasedDepth $ tracePropagate (Proxy :: Proxy x) $ "propagateSubscriberHold: assigning Hold" <> showNodeId h
1510+ tracePropagate (Proxy :: Proxy x) ("propagateSubscriberHold: assigning Hold" <> showNodeId h)
1349 vRef <- {-# SCC "vRef" #-} liftIO $ evaluate $ holdValue h
1511 vRef <- {-# SCC "vRef" #-} liftIO $ evaluate $ holdValue h
1350 iRef <- {-# SCC "iRef" #-} liftIO $ evaluate $ holdInvalidators h
1512 iRef <- {-# SCC "iRef" #-} liftIO $ evaluate $ holdInvalidators h
1351 defer $ {-# SCC "assignment" #-} SomeAssignment vRef iRef v'
1513 defer $ {-# SCC "assignment" #-} SomeAssignment vRef iRef v'
@@ -1353,25 +1515,25 @@ propagateSubscriberHold h a = do
1353data SomeResetCoincidence x = forall a. SomeResetCoincidence !(EventSubscription x) !(Maybe (CoincidenceSubscribed x a)) -- The CoincidenceSubscriber will be present only if heights need to be reset
1515data SomeResetCoincidence x = forall a. SomeResetCoincidence !(EventSubscription x) !(Maybe (CoincidenceSubscribed x a)) -- The CoincidenceSubscriber will be present only if heights need to be reset
1355runBehaviorM :: BehaviorM x a -> Maybe (Weak (Invalidator x), IORef [SomeBehaviorSubscribed x]) -> IORef [SomeHoldInit x] -> IO a
1517runBehaviorM :: BehaviorM x a -> Maybe (Weak (Invalidator x), IORef [SomeBehaviorSubscribed x]) -> IORef [SomeHoldInit x] -> IO a
1356−runBehaviorM a mwi holdInits = runReaderT (unBehaviorM a) (mwi, holdInits)
1518+runBehaviorM a mwi holdInits = runReaderIO (unBehaviorM a) (mwi, holdInits)
1358askInvalidator :: BehaviorM x (Maybe (Weak (Invalidator x)))
1520askInvalidator :: BehaviorM x (Maybe (Weak (Invalidator x)))
1359askInvalidator = do
1521askInvalidator = do
1360− (!m, _) <- BehaviorM ask
1522+ (!m, _) <- ask
1361 case m of
1523 case m of
1362 Nothing -> return Nothing
1524 Nothing -> return Nothing
1363 Just (!wi, _) -> return $ Just wi
1525 Just (!wi, _) -> return $ Just wi
1365askParentsRef :: BehaviorM x (Maybe (IORef [SomeBehaviorSubscribed x]))
1527askParentsRef :: BehaviorM x (Maybe (IORef [SomeBehaviorSubscribed x]))
1366askParentsRef = do
1528askParentsRef = do
1367− (!m, _) <- BehaviorM ask
1529+ (!m, _) <- ask
1368 case m of
1530 case m of
1369 Nothing -> return Nothing
1531 Nothing -> return Nothing
1370 Just (_, !p) -> return $ Just p
1532 Just (_, !p) -> return $ Just p
1372askBehaviorHoldInits :: BehaviorM x (IORef [SomeHoldInit x])
1534askBehaviorHoldInits :: BehaviorM x (IORef [SomeHoldInit x])
1373askBehaviorHoldInits = do
1535askBehaviorHoldInits = do
1374− (_, !his) <- BehaviorM ask
1536+ (_, !his) <- ask
1375 return his
1537 return his
1377{-# INLINE getDynHold #-}
1539{-# INLINE getDynHold #-}
@@ -1379,20 +1541,27 @@ getDynHold :: (Defer (SomeHoldInit x) m, Patch p) => Dyn x p -> m (Hold x p)
1379getDynHold d = do
1541getDynHold d = do
1380 mh <- liftIO $ readIORef $ unDyn d
1542 mh <- liftIO $ readIORef $ unDyn d
1381 case mh of
1543 case mh of
1382− Right h -> return h
1544+ HoldDyn h -> return h
1383− Left (readV0, v') -> do
1545+ UnsafeDyn (readV0, v') -> do
1384 holdInits <- getDeferralQueue
1546 holdInits <- getDeferralQueue
1385 v0 <- liftIO $ runBehaviorM readV0 Nothing holdInits
1547 v0 <- liftIO $ runBehaviorM readV0 Nothing holdInits
1549+ BuildDyn (readV0, v') -> do
1550+ v0 <- liftIO $ runEventM readV0
1386 h <- hold v0 v'
1554 h <- hold v0 v'
1387− liftIO $ writeIORef (unDyn d) $ Right h
1555+ liftIO $ writeIORef (unDyn d) $ HoldDyn h
1388 return h
1556 return h
1390-- Always refers to 0
1559-- Always refers to 0
1391{-# NOINLINE zeroRef #-}
1560{-# NOINLINE zeroRef #-}
1392zeroRef :: IORef Height
1561zeroRef :: IORef Height
1393zeroRef = unsafePerformIO $ newIORef zeroHeight
1562zeroRef = unsafePerformIO $ newIORef zeroHeight
1395−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)
1396getRootSubscribed k r sub = do
1565getRootSubscribed k r sub = do
1397 mSubscribed <- readIORef $ rootSubscribed r
1566 mSubscribed <- readIORef $ rootSubscribed r
1398 let getOcc = fmap (coerce . DMap.lookup k) $ readIORef $ rootOccurrence r
1567 let getOcc = fmap (coerce . DMap.lookup k) $ readIORef $ rootOccurrence r
@@ -1406,9 +1575,14 @@ getRootSubscribed k r sub = do
1406 let !cached = rootSubscribed r
1575 let !cached = rootSubscribed r
1407 uninitRef <- newIORef $ error "getRootsubscribed: uninitRef not initialized"
1576 uninitRef <- newIORef $ error "getRootsubscribed: uninitRef not initialized"
1408 (subs, sln) <- WeakBag.singleton sub weakSelf cleanupRootSubscribed
1577 (subs, sln) <- WeakBag.singleton sub weakSelf cleanupRootSubscribed
1409− when debugPropagate $ putStrLn $ "getRootSubscribed: calling rootInit"
1579+ tracePropagate (Proxy::Proxy x) $ "getRootSubscribed: calling rootInit"
1410 uninit <- rootInit r k $ RootTrigger (subs, rootOccurrence r, k)
1581 uninit <- rootInit r k $ RootTrigger (subs, rootOccurrence r, k)
1411 writeIORef uninitRef $! uninit
1582 writeIORef uninitRef $! uninit
1583+#ifdef DEBUG_NODEIDS
1412 let !subscribed = RootSubscribed
1586 let !subscribed = RootSubscribed
1413 { rootSubscribedKey = k
1587 { rootSubscribedKey = k
1414 , rootSubscribedCachedSubscribed = cached
1588 , rootSubscribedCachedSubscribed = cached
@@ -1417,7 +1591,7 @@ getRootSubscribed k r sub = do
1417 , rootSubscribedUninit = uninit
1591 , rootSubscribedUninit = uninit
1418 , rootSubscribedWeakSelf = weakSelf
1592 , rootSubscribedWeakSelf = weakSelf
1419#ifdef DEBUG_NODEIDS
1593#ifdef DEBUG_NODEIDS
1420− , rootSubscribedNodeId = unsafeNodeId (k, r, subs)
1594+ , rootSubscribedNodeId = nid
1423 -- If we die at the same moment that all our children die, they will
1597 -- If we die at the same moment that all our children die, they will
@@ -1453,6 +1627,9 @@ data FanInt x a = FanInt
1453 { _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
1454 , _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
1455 , _fanInt_occRef :: {-# UNPACK #-} !(IORef (IntMap a))
1629 , _fanInt_occRef :: {-# UNPACK #-} !(IORef (IntMap a))
1630+#ifdef DEBUG_NODEIDS
1631+ , _fanInt_nodeId :: {-# UNPACK #-} !Int
1458newFanInt :: IO (FanInt x a)
1635newFanInt :: IO (FanInt x a)
@@ -1460,38 +1637,39 @@ newFanInt = do
1460 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
1461 subscriptionRef <- newIORef $ error "fanInt: no subscription"
1638 subscriptionRef <- newIORef $ error "fanInt: no subscription"
1462 occRef <- newIORef $ error "fanInt: no occurrence"
1639 occRef <- newIORef $ error "fanInt: no occurrence"
1640+#ifdef DEBUG_NODEIDS
1641+ nodeId <- newNodeId
1463 return $ FanInt
1643 return $ FanInt
1464 { _fanInt_subscribers = subscribers
1644 { _fanInt_subscribers = subscribers
1465 , _fanInt_subscriptionRef = subscriptionRef
1645 , _fanInt_subscriptionRef = subscriptionRef
1466 , _fanInt_occRef = occRef
1646 , _fanInt_occRef = occRef
1647+#ifdef DEBUG_NODEIDS
1648+ , _fanInt_nodeId = nodeId
1469−{-# NOINLINE unsafeNewFanInt #-}
1470−unsafeNewFanInt :: b -> FanInt x a
1471−unsafeNewFanInt b = unsafePerformIO $ do
1475fanInt :: HasSpiderTimeline x => Event x (IntMap a) -> EventSelectorInt x a
1652fanInt :: HasSpiderTimeline x => Event x (IntMap a) -> EventSelectorInt x a
1476−fanInt p =
1653+fanInt p = unsafePerformIO $ do
1477− let self = unsafeNewFanInt p
1654+ self <- newFanInt
1478− in EventSelectorInt $ \k -> Event $ \sub -> do
1655+ pure $ EventSelectorInt $ \k -> Event $ \sub -> do
1479 isEmpty <- liftIO $ FastMutableIntMap.isEmpty (_fanInt_subscribers self)
1656 isEmpty <- liftIO $ FastMutableIntMap.isEmpty (_fanInt_subscribers self)
1480 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
1481− (subscription, parentOcc) <- subscribeAndRead p $ Subscriber
1659+ (subscription, parentOcc) <- subscribeAndRead p $ debugSubscriber' desc $ Subscriber
1482 { subscriberPropagate = \m -> do
1660 { subscriberPropagate = \m -> do
1483 liftIO $ writeIORef (_fanInt_occRef self) m
1661 liftIO $ writeIORef (_fanInt_occRef self) m
1484 scheduleIntClear $ _fanInt_occRef self
1662 scheduleIntClear $ _fanInt_occRef self
1485− 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?
1486− FastWeakBag.traverse b $ \s -> do
1664+ FastWeakBag.traverse_ b $ \s ->
1487 subscriberPropagate s v
1665 subscriberPropagate s v
1488− , subscriberInvalidateHeight = \old -> do
1666+ , subscriberInvalidateHeight = \old ->
1489− FastMutableIntMap.for_ (_fanInt_subscribers self) $ \b -> do
1667+ FastMutableIntMap.for_ (_fanInt_subscribers self) $ \b ->
1490− FastWeakBag.traverse b $ \s -> do
1668+ FastWeakBag.traverse_ b $ \s ->
1491 subscriberInvalidateHeight s old
1669 subscriberInvalidateHeight s old
1492− , subscriberRecalculateHeight = \new -> do
1670+ , subscriberRecalculateHeight = \new ->
1493− FastMutableIntMap.for_ (_fanInt_subscribers self) $ \b -> do
1671+ FastMutableIntMap.for_ (_fanInt_subscribers self) $ \b ->
1494− FastWeakBag.traverse b $ \s -> do
1672+ FastWeakBag.traverse_ b $ \s ->
1495 subscriberRecalculateHeight s new
1673 subscriberRecalculateHeight s new
1497 liftIO $ do
1675 liftIO $ do
@@ -1505,13 +1683,28 @@ fanInt p =
1505 FastMutableIntMap.insert (_fanInt_subscribers self) k b
1683 FastMutableIntMap.insert (_fanInt_subscribers self) k b
1506 return b
1684 return b
1507 Just b -> return b
1685 Just b -> return b
1508− t <- liftIO $ FastWeakBag.insert sub b
1686+ ticket <- liftIO $ FastWeakBag.insert sub b
1509 currentOcc <- readIORef (_fanInt_occRef self)
1687 currentOcc <- readIORef (_fanInt_occRef self)
1510− (EventSubscription _ (EventSubscribed !heightRef _)) <- readIORef (_fanInt_subscriptionRef self)
1688+
1689+ subscribed <- fanIntSubscribed ticket self
1511− 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
1513{-# INLINABLE getFanSubscribed #-}
1706{-# INLINABLE getFanSubscribed #-}
1514−getFanSubscribed :: (HasSpiderTimeline x, GCompare k) => k a -> Fan x k -> Subscriber x a -> EventM x (WeakBagTicket, FanSubscribed x k, Maybe a)
1707+getFanSubscribed :: (HasSpiderTimeline x, GCompare k) => k a -> Fan x k v -> Subscriber x (v a) -> EventM x (WeakBagTicket, FanSubscribed x k v, Maybe (v a))
1515getFanSubscribed k f sub = do
1708getFanSubscribed k f sub = do
1516 mSubscribed <- liftIO $ readIORef $ fanSubscribed f
1709 mSubscribed <- liftIO $ readIORef $ fanSubscribed f
1517 case mSubscribed of
1710 case mSubscribed of
@@ -1529,13 +1722,16 @@ getFanSubscribed k f sub = do
1529 subscribersRef <- liftIO $ newIORef $ error "getFanSubscribed: subscribersRef not yet initialized"
1722 subscribersRef <- liftIO $ newIORef $ error "getFanSubscribed: subscribersRef not yet initialized"
1530 occRef <- liftIO $ newIORef parentOcc
1723 occRef <- liftIO $ newIORef parentOcc
1531 when (isJust parentOcc) $ scheduleClear occRef
1724 when (isJust parentOcc) $ scheduleClear occRef
1725+#ifdef DEBUG_NODEIDS
1726+ nid <- liftIO newNodeId
1532 let subscribed = FanSubscribed
1728 let subscribed = FanSubscribed
1533 { fanSubscribedCachedSubscribed = fanSubscribed f
1729 { fanSubscribedCachedSubscribed = fanSubscribed f
1534 , fanSubscribedOccurrence = occRef
1730 , fanSubscribedOccurrence = occRef
1535 , fanSubscribedParent = subscription
1731 , fanSubscribedParent = subscription
1536 , fanSubscribedSubscribers = subscribersRef
1732 , fanSubscribedSubscribers = subscribersRef
1537#ifdef DEBUG_NODEIDS
1733#ifdef DEBUG_NODEIDS
1538− , fanSubscribedNodeId = unsafeNodeId f
1734+ , fanSubscribedNodeId = nid
1541 let !self = (k, subscribed)
1737 let !self = (k, subscribed)
@@ -1545,7 +1741,7 @@ getFanSubscribed k f sub = do
1545 liftIO $ writeIORef (fanSubscribed f) $ Just subscribed
1741 liftIO $ writeIORef (fanSubscribed f) $ Just subscribed
1546 return (slnForSub, subscribed, coerce $ DMap.lookup k =<< parentOcc)
1742 return (slnForSub, subscribed, coerce $ DMap.lookup k =<< parentOcc)
1548−cleanupFanSubscribed :: GCompare k => (k a, FanSubscribed x k) -> IO ()
1744+cleanupFanSubscribed :: GCompare k => (k a, FanSubscribed x k v) -> IO ()
1549cleanupFanSubscribed (k, subscribed) = do
1745cleanupFanSubscribed (k, subscribed) = do
1550 subscribers <- readIORef $ fanSubscribedSubscribers subscribed
1746 subscribers <- readIORef $ fanSubscribedSubscribers subscribed
1551 let reducedSubscribers = DMap.delete k subscribers
1747 let reducedSubscribers = DMap.delete k subscribers
@@ -1557,7 +1753,7 @@ cleanupFanSubscribed (k, subscribed) = do
1557 else writeIORef (fanSubscribedSubscribers subscribed) $! reducedSubscribers
1753 else writeIORef (fanSubscribedSubscribers subscribed) $! reducedSubscribers
1559{-# INLINE subscribeFanSubscribed #-}
1755{-# INLINE subscribeFanSubscribed #-}
1560−subscribeFanSubscribed :: GCompare k => k a -> FanSubscribed x k -> Subscriber x a -> IO WeakBagTicket
1756+subscribeFanSubscribed :: GCompare k => k a -> FanSubscribed x k v -> Subscriber x (v a) -> IO WeakBagTicket
1561subscribeFanSubscribed k subscribed sub = do
1757subscribeFanSubscribed k subscribed sub = do
1562 subscribers <- readIORef $ fanSubscribedSubscribers subscribed
1758 subscribers <- readIORef $ fanSubscribedSubscribers subscribed
1563 case DMap.lookup k subscribers of
1759 case DMap.lookup k subscribers of
@@ -1595,6 +1791,9 @@ getSwitchSubscribed s sub = do
1595 when (isJust parentOcc) $ scheduleClear occRef
1791 when (isJust parentOcc) $ scheduleClear occRef
1596 weakSelf <- liftIO $ newIORef $ error "getSwitchSubscribed: weakSelf not yet initialized"
1792 weakSelf <- liftIO $ newIORef $ error "getSwitchSubscribed: weakSelf not yet initialized"
1597 (subs, slnForSub) <- liftIO $ WeakBag.singleton sub weakSelf cleanupSwitchSubscribed
1793 (subs, slnForSub) <- liftIO $ WeakBag.singleton sub weakSelf cleanupSwitchSubscribed
1794+#ifdef DEBUG_NODEIDS
1795+ nid <- liftIO newNodeId
1598 let !subscribed = SwitchSubscribed
1797 let !subscribed = SwitchSubscribed
1599 { switchSubscribedCachedSubscribed = switchSubscribed s
1798 { switchSubscribedCachedSubscribed = switchSubscribed s
1600 , switchSubscribedOccurrence = occRef
1799 , switchSubscribedOccurrence = occRef
@@ -1607,7 +1806,7 @@ getSwitchSubscribed s sub = do
1607 , switchSubscribedCurrentParent = subscriptionRef
1806 , switchSubscribedCurrentParent = subscriptionRef
1608 , switchSubscribedWeakSelf = weakSelf
1807 , switchSubscribedWeakSelf = weakSelf
1609#ifdef DEBUG_NODEIDS
1808#ifdef DEBUG_NODEIDS
1610− , switchSubscribedNodeId = unsafeNodeId s
1809+ , switchSubscribedNodeId = nid
1613 liftIO $ writeIORef weakSelf =<< evaluate =<< mkWeakPtrWithDebug subscribed "switchSubscribedWeakSelf"
1812 liftIO $ writeIORef weakSelf =<< evaluate =<< mkWeakPtrWithDebug subscribed "switchSubscribedWeakSelf"
@@ -1652,6 +1851,9 @@ getCoincidenceSubscribed c sub = do
1652 scheduleClear innerSubdRef
1851 scheduleClear innerSubdRef
1653 weakSelf <- liftIO $ newIORef $ error "getCoincidenceSubscribed: weakSelf not yet implemented"
1852 weakSelf <- liftIO $ newIORef $ error "getCoincidenceSubscribed: weakSelf not yet implemented"
1654 (subs, slnForSub) <- liftIO $ WeakBag.singleton sub weakSelf cleanupCoincidenceSubscribed
1853 (subs, slnForSub) <- liftIO $ WeakBag.singleton sub weakSelf cleanupCoincidenceSubscribed
1854+#ifdef DEBUG_NODEIDS
1855+ nid <- liftIO newNodeId
1655 let subscribed = CoincidenceSubscribed
1857 let subscribed = CoincidenceSubscribed
1656 { coincidenceSubscribedCachedSubscribed = coincidenceSubscribed c
1858 { coincidenceSubscribedCachedSubscribed = coincidenceSubscribed c
1657 , coincidenceSubscribedOccurrence = occRef
1859 , coincidenceSubscribedOccurrence = occRef
@@ -1662,7 +1864,7 @@ getCoincidenceSubscribed c sub = do
1662 , coincidenceSubscribedInnerParent = innerSubdRef
1864 , coincidenceSubscribedInnerParent = innerSubdRef
1663 , coincidenceSubscribedWeakSelf = weakSelf
1865 , coincidenceSubscribedWeakSelf = weakSelf
1664#ifdef DEBUG_NODEIDS
1866#ifdef DEBUG_NODEIDS
1665− , coincidenceSubscribedNodeId = unsafeNodeId c
1867+ , coincidenceSubscribedNodeId = nid
1668 liftIO $ writeIORef weakSelf =<< evaluate =<< mkWeakPtrWithDebug subscribed "CoincidenceSubscribed"
1870 liftIO $ writeIORef weakSelf =<< evaluate =<< mkWeakPtrWithDebug subscribed "CoincidenceSubscribed"
@@ -1679,57 +1881,72 @@ cleanupCoincidenceSubscribed subscribed = do
1679subscribeCoincidenceSubscribed :: CoincidenceSubscribed x a -> Subscriber x a -> IO WeakBagTicket
1881subscribeCoincidenceSubscribed :: CoincidenceSubscribed x a -> Subscriber x a -> IO WeakBagTicket
1680subscribeCoincidenceSubscribed subscribed sub = WeakBag.insert sub (coincidenceSubscribedSubscribers subscribed) (coincidenceSubscribedWeakSelf subscribed) cleanupCoincidenceSubscribed
1882subscribeCoincidenceSubscribed subscribed sub = WeakBag.insert sub (coincidenceSubscribedSubscribers subscribed) (coincidenceSubscribedWeakSelf subscribed) cleanupCoincidenceSubscribed
1682−{-# INLINE merge #-}
1884+{-# INLINE mergeG #-}
1683−merge :: forall k x. (HasSpiderTimeline x, GCompare k) => Dynamic x (PatchDMap k (Event x)) -> Event x (DMap k Identity)
1885+mergeG :: forall k q x v. (HasSpiderTimeline x, GCompare k)
1886+ => (forall a. q a -> Event x (v a))
1887+ -> DynamicS x (PatchDMap k q) -> Event x (DMap k v)
1684−merge d = cacheEvent (mergeCheap d)
1888+mergeG nt d = cacheEvent (mergeCheap nt d)
1686{-# INLINE mergeWithMove #-}
1890{-# INLINE mergeWithMove #-}
1687−mergeWithMove :: forall k x. (HasSpiderTimeline x, GCompare k) => Dynamic x (PatchDMapWithMove k (Event x)) -> Event x (DMap k Identity)
1891+mergeWithMove :: forall k v q x. (HasSpiderTimeline x, GCompare k)
1892+ => (forall a. q a -> Event x (v a))
1893+ -> DynamicS x (PatchDMapWithMove k q) -> Event x (DMap k v)
1688−mergeWithMove d = cacheEvent (mergeCheapWithMove d)
1894+mergeWithMove nt d = cacheEvent (mergeCheapWithMove nt d)
1690{-# INLINE [1] mergeCheap #-}
1896{-# INLINE [1] mergeCheap #-}
1691−mergeCheap :: forall k x. (HasSpiderTimeline x, GCompare k) => Dynamic x (PatchDMap k (Event x)) -> Event x (DMap k Identity)
1898+ :: forall k x q v. (HasSpiderTimeline x, GCompare k)
1899+ => (forall a. q a -> Event x (v a))
1900+ -> DynamicS x (PatchDMap k q)
1901+ -> Event x (DMap k v)
1692−mergeCheap = mergeCheap' getInitialSubscribers updateMe destroy
1902+mergeCheap nt = mergeGCheap' unMergeSubscribedParent getInitialSubscribers updateMe destroy
1694− updateMe :: MergeUpdateFunc k x (PatchDMap k (Event x)) (MergeSubscribedParent x)
1904+ updateMe :: MergeUpdateFunc k v x (PatchDMap k q) (MergeSubscribedParent x)
1695 updateMe subscriber heightBagRef oldParents (PatchDMap p) = do
1905 updateMe subscriber heightBagRef oldParents (PatchDMap p) = do
1696 let f (subscriptionsToKill, ps) (k :=> ComposeMaybe me) = do
1906 let f (subscriptionsToKill, ps) (k :=> ComposeMaybe me) = do
1697 (mOldSubd, newPs) <- case me of
1907 (mOldSubd, newPs) <- case me of
1698 Nothing -> return $ DMap.updateLookupWithKey (\_ _ -> Nothing) k ps
1908 Nothing -> return $ DMap.updateLookupWithKey (\_ _ -> Nothing) k ps
1699 Just e -> do
1909 Just e -> do
1700 let s = subscriber $ return k
1910 let s = subscriber $ return k
1701− subscription@(EventSubscription _ subd) <- subscribe e s
1911+ subscription@(EventSubscription _ subd) <- subscribe (nt e) s
1702 newParentHeight <- liftIO $ getEventSubscribedHeight subd
1912 newParentHeight <- liftIO $ getEventSubscribedHeight subd
1703 let newParent = MergeSubscribedParent subscription
1913 let newParent = MergeSubscribedParent subscription
1704 liftIO $ modifyIORef' heightBagRef $ heightBagAdd newParentHeight
1914 liftIO $ modifyIORef' heightBagRef $ heightBagAdd newParentHeight
1705 return $ DMap.insertLookupWithKey' (\_ new _ -> new) k newParent ps
1915 return $ DMap.insertLookupWithKey' (\_ new _ -> new) k newParent ps
1706 forM_ mOldSubd $ \oldSubd -> do
1916 forM_ mOldSubd $ \oldSubd -> do
1917+ oldHeight <- liftIO $ getEventSubscribedHeight $
1707− oldHeight <- liftIO $ getEventSubscribedHeight $ _eventSubscription_subscribed $ unMergeSubscribedParent oldSubd
1918+ _eventSubscription_subscribed $ unMergeSubscribedParent oldSubd
1708 liftIO $ modifyIORef heightBagRef $ heightBagRemove oldHeight
1920 liftIO $ modifyIORef heightBagRef $ heightBagRemove oldHeight
1709 return (maybeToList (unMergeSubscribedParent <$> mOldSubd) ++ subscriptionsToKill, newPs)
1921 return (maybeToList (unMergeSubscribedParent <$> mOldSubd) ++ subscriptionsToKill, newPs)
1710 foldM f ([], oldParents) $ DMap.toList p
1922 foldM f ([], oldParents) $ DMap.toList p
1711− getInitialSubscribers :: MergeInitFunc k x (MergeSubscribedParent x)
1924+ getInitialSubscribers :: MergeInitFunc k v q x (MergeSubscribedParent x)
1712 getInitialSubscribers initialParents subscriber = do
1925 getInitialSubscribers initialParents subscriber = do
1713 subscribers <- forM (DMap.toList initialParents) $ \(k :=> e) -> do
1926 subscribers <- forM (DMap.toList initialParents) $ \(k :=> e) -> do
1714 let s = subscriber $ return k
1927 let s = subscriber $ return k
1715− (subscription@(EventSubscription _ parentSubd), parentOcc) <- subscribeAndRead e s
1928+ (subscription@(EventSubscription _ parentSubd), parentOcc) <- subscribeAndRead (nt e) s
1716 height <- liftIO $ getEventSubscribedHeight parentSubd
1929 height <- liftIO $ getEventSubscribedHeight parentSubd
1717− return (fmap (\x -> k :=> Identity x) parentOcc, height, k :=> MergeSubscribedParent subscription)
1930+ return (fmap (k :=>) parentOcc, height, k :=> MergeSubscribedParent subscription)
1718 return ( DMap.fromDistinctAscList $ mapMaybe (\(x, _, _) -> x) subscribers
1931 return ( DMap.fromDistinctAscList $ mapMaybe (\(x, _, _) -> x) subscribers
1719 , fmap (\(_, h, _) -> h) subscribers --TODO: Assert that there's no invalidHeight in here
1932 , fmap (\(_, h, _) -> h) subscribers --TODO: Assert that there's no invalidHeight in here
1720 , DMap.fromDistinctAscList $ map (\(_, _, x) -> x) subscribers
1933 , DMap.fromDistinctAscList $ map (\(_, _, x) -> x) subscribers
1722 destroy :: MergeDestroyFunc k (MergeSubscribedParent x)
1936 destroy :: MergeDestroyFunc k (MergeSubscribedParent x)
1723 destroy s = forM_ (DMap.toList s) $ \(_ :=> MergeSubscribedParent sub) -> unsubscribe sub
1937 destroy s = forM_ (DMap.toList s) $ \(_ :=> MergeSubscribedParent sub) -> unsubscribe sub
1725{-# INLINE [1] mergeCheapWithMove #-}
1939{-# INLINE [1] mergeCheapWithMove #-}
1726−mergeCheapWithMove :: forall k x. (HasSpiderTimeline x, GCompare k) => Dynamic x (PatchDMapWithMove k (Event x)) -> Event x (DMap k Identity)
1940+mergeCheapWithMove :: forall k x v q. (HasSpiderTimeline x, GCompare k)
1941+ => (forall a. q a -> Event x (v a))
1942+ -> DynamicS x (PatchDMapWithMove k q)
1943+ -> Event x (DMap k v)
1727−mergeCheapWithMove = mergeCheap' getInitialSubscribers updateMe destroy
1944+mergeCheapWithMove nt = mergeGCheap' _mergeSubscribedParentWithMove_subscription getInitialSubscribers updateMe destroy
1729− updateMe :: MergeUpdateFunc k x (PatchDMapWithMove k (Event x)) (MergeSubscribedParentWithMove x k)
1946+ updateMe :: MergeUpdateFunc k v x (PatchDMapWithMove k q) (MergeSubscribedParentWithMove x k)
1730 updateMe subscriber heightBagRef oldParents p = do
1947 updateMe subscriber heightBagRef oldParents p = do
1731 -- Prepare new parents for insertion
1948 -- Prepare new parents for insertion
1732− let subscribeParent :: forall a. k a -> Event x a -> EventM x (MergeSubscribedParentWithMove x k a)
1949+ let subscribeParent :: forall a. k a -> Event x (v a) -> EventM x (MergeSubscribedParentWithMove x k a)
1733 subscribeParent k e = do
1950 subscribeParent k e = do
1734 keyRef <- liftIO $ newIORef k
1951 keyRef <- liftIO $ newIORef k
1735 let s = subscriber $ liftIO $ readIORef keyRef
1952 let s = subscriber $ liftIO $ readIORef keyRef
@@ -1738,73 +1955,82 @@ mergeCheapWithMove = mergeCheap' getInitialSubscribers updateMe destroy
1738 newParentHeight <- getEventSubscribedHeight subd
1955 newParentHeight <- getEventSubscribedHeight subd
1739 modifyIORef' heightBagRef $ heightBagAdd newParentHeight
1956 modifyIORef' heightBagRef $ heightBagAdd newParentHeight
1740 return $ MergeSubscribedParentWithMove subscription keyRef
1957 return $ MergeSubscribedParentWithMove subscription keyRef
1741− p' <- PatchDMapWithMove.traversePatchDMapWithMoveWithKey subscribeParent p
1958+ p' <- PatchDMapWithMove.traversePatchDMapWithMoveWithKey (\k q -> subscribeParent k (nt q)) p
1742 -- Collect old parents for deletion and update the keys of moved parents
1959 -- Collect old parents for deletion and update the keys of moved parents
1743− let moveOrDelete :: forall a. k a -> PatchDMapWithMove.NodeInfo k (Event x) 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
1744 moveOrDelete _ ni parent = Constant $ case getComposeMaybe $ PatchDMapWithMove._nodeInfo_to ni of
1961 moveOrDelete _ ni parent = Constant $ case getComposeMaybe $ PatchDMapWithMove._nodeInfo_to ni of
1745 Nothing -> do
1962 Nothing -> do
1746− oldHeight <- liftIO $ getEventSubscribedHeight $ _eventSubscription_subscribed $ _mergeSubscribedParentWithMove_subscription parent
1963+ oldHeight <- liftIO $ getEventSubscribedHeight $ _eventSubscription_subscribed $
1964+ _mergeSubscribedParentWithMove_subscription parent
1747 liftIO $ modifyIORef heightBagRef $ heightBagRemove oldHeight
1966 liftIO $ modifyIORef heightBagRef $ heightBagRemove oldHeight
1748 return $ Just $ _mergeSubscribedParentWithMove_subscription parent
1967 return $ Just $ _mergeSubscribedParentWithMove_subscription parent
1749 Just toKey -> do
1968 Just toKey -> do
1750 liftIO $ writeIORef (_mergeSubscribedParentWithMove_key parent) $! toKey
1969 liftIO $ writeIORef (_mergeSubscribedParentWithMove_key parent) $! toKey
1751 return Nothing
1970 return Nothing
1971+ toDelete <- fmap catMaybes $ mapM (\(_ :=> v) -> getConstant v) $ DMap.toList $
1752− toDelete <- fmap catMaybes $ mapM (\(_ :=> v) -> getConstant v) $ DMap.toList $ DMap.intersectionWithKey moveOrDelete (unPatchDMapWithMove p) oldParents
1972+ DMap.intersectionWithKey moveOrDelete (unPatchDMapWithMove p) oldParents
1753 return (toDelete, applyAlways p' oldParents)
1974 return (toDelete, applyAlways p' oldParents)
1754− getInitialSubscribers :: MergeInitFunc k x (MergeSubscribedParentWithMove x k)
1975+ getInitialSubscribers :: MergeInitFunc k v q x (MergeSubscribedParentWithMove x k)
1755 getInitialSubscribers initialParents subscriber = do
1976 getInitialSubscribers initialParents subscriber = do
1756 subscribers <- forM (DMap.toList initialParents) $ \(k :=> e) -> do
1977 subscribers <- forM (DMap.toList initialParents) $ \(k :=> e) -> do
1757 keyRef <- liftIO $ newIORef k
1978 keyRef <- liftIO $ newIORef k
1758 let s = subscriber $ liftIO $ readIORef keyRef
1979 let s = subscriber $ liftIO $ readIORef keyRef
1759− (subscription@(EventSubscription _ parentSubd), parentOcc) <- subscribeAndRead e s
1980+ (subscription@(EventSubscription _ parentSubd), parentOcc) <- subscribeAndRead (nt e) s
1760 height <- liftIO $ getEventSubscribedHeight parentSubd
1981 height <- liftIO $ getEventSubscribedHeight parentSubd
1761− return (fmap (\x -> k :=> Identity x) parentOcc, height, k :=> MergeSubscribedParentWithMove subscription keyRef)
1982+ return (fmap (k :=>) parentOcc, height, k :=> MergeSubscribedParentWithMove subscription keyRef)
1762 return ( DMap.fromDistinctAscList $ mapMaybe (\(x, _, _) -> x) subscribers
1983 return ( DMap.fromDistinctAscList $ mapMaybe (\(x, _, _) -> x) subscribers
1763 , fmap (\(_, h, _) -> h) subscribers --TODO: Assert that there's no invalidHeight in here
1984 , fmap (\(_, h, _) -> h) subscribers --TODO: Assert that there's no invalidHeight in here
1764 , DMap.fromDistinctAscList $ map (\(_, _, x) -> x) subscribers
1985 , DMap.fromDistinctAscList $ map (\(_, _, x) -> x) subscribers
1766 destroy :: MergeDestroyFunc k (MergeSubscribedParentWithMove x k)
1988 destroy :: MergeDestroyFunc k (MergeSubscribedParentWithMove x k)
1767 destroy s = forM_ (DMap.toList s) $ \(_ :=> MergeSubscribedParentWithMove sub _) -> unsubscribe sub
1989 destroy s = forM_ (DMap.toList s) $ \(_ :=> MergeSubscribedParentWithMove sub _) -> unsubscribe sub
1769−type MergeUpdateFunc k x p s
1991+type MergeUpdateFunc k v x p s
1770− = (forall a. EventM x (k a) -> Subscriber x a)
1992+ = (forall a. EventM x (k a) -> Subscriber x (v a))
1771 -> IORef HeightBag
1993 -> IORef HeightBag
1772 -> DMap k s
1994 -> DMap k s
1774 -> 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
1776−type MergeInitFunc k x s
2000+type MergeInitFunc k v q x s
1777− = DMap k (Event x)
2001+ = DMap k q
1778− -> (forall a. EventM x (k a) -> Subscriber x a)
2002+ -> (forall a. EventM x (k a) -> Subscriber x (v a))
1779− -> EventM x (DMap k Identity, [Height], DMap k s)
2003+ -> EventM x (DMap k v, [Height], DMap k s)
1781type MergeDestroyFunc k s
2005type MergeDestroyFunc k s
1782 = DMap k s
2006 = DMap k s
1783 -> IO ()
2007 -> IO ()
1785−data Merge x k s = Merge
2009+data Merge x k v s = Merge
1786 { _merge_parentsRef :: {-# UNPACK #-} !(IORef (DMap k s))
2010 { _merge_parentsRef :: {-# UNPACK #-} !(IORef (DMap k s))
1787 , _merge_heightBagRef :: {-# UNPACK #-} !(IORef HeightBag)
2011 , _merge_heightBagRef :: {-# UNPACK #-} !(IORef HeightBag)
1788 , _merge_heightRef :: {-# UNPACK #-} !(IORef Height)
2012 , _merge_heightRef :: {-# UNPACK #-} !(IORef Height)
1789− , _merge_sub :: {-# UNPACK #-} !(Subscriber x (DMap k Identity))
2013+ , _merge_sub :: {-# UNPACK #-} !(Subscriber x (DMap k v))
1790− , _merge_accumRef :: {-# UNPACK #-} !(IORef (DMap k Identity))
2014+ , _merge_accumRef :: {-# UNPACK #-} !(IORef (DMap k v))
1793−invalidateMergeHeight :: Merge x k s -> IO ()
2017+invalidateMergeHeight :: Merge x k v s -> IO ()
1794invalidateMergeHeight m = invalidateMergeHeight' (_merge_heightRef m) (_merge_sub m)
2018invalidateMergeHeight m = invalidateMergeHeight' (_merge_heightRef m) (_merge_sub m)
1796invalidateMergeHeight' :: IORef Height -> Subscriber x a -> IO ()
2020invalidateMergeHeight' :: IORef Height -> Subscriber x a -> IO ()
1797invalidateMergeHeight' heightRef sub = do
2021invalidateMergeHeight' heightRef sub = do
1798 oldHeight <- readIORef heightRef
2022 oldHeight <- readIORef heightRef
1799− 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
1800 writeIORef heightRef $! invalidHeight
2025 writeIORef heightRef $! invalidHeight
1801 subscriberInvalidateHeight sub oldHeight
2026 subscriberInvalidateHeight sub oldHeight
1804−revalidateMergeHeight :: Merge x k s -> IO ()
2028+revalidateMergeHeight :: Merge x k v s -> IO ()
1805revalidateMergeHeight m = do
2029revalidateMergeHeight m = do
1806 currentHeight <- readIORef $ _merge_heightRef m
2030 currentHeight <- readIORef $ _merge_heightRef m
1807− 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
1808 heights <- readIORef $ _merge_heightBagRef m
2034 heights <- readIORef $ _merge_heightBagRef m
1809 parents <- readIORef $ _merge_parentsRef m
2035 parents <- readIORef $ _merge_parentsRef m
1810 -- 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
@@ -1812,44 +2038,53 @@ revalidateMergeHeight m = do
1812 LT -> return ()
2038 LT -> return ()
1813 EQ -> do
2039 EQ -> do
1814 let height = succHeight $ heightBagMax heights
2040 let height = succHeight $ heightBagMax heights
1815− when debugInvalidateHeight $ putStrLn $ "recalculateSubscriberHeight: height: " <> show height
2041+ traceInvalidateHeight $ "recalculateSubscriberHeight: height: " <> show height
1816 writeIORef (_merge_heightRef m) $! height
2042 writeIORef (_merge_heightRef m) $! height
1817 subscriberRecalculateHeight (_merge_sub m) height
2043 subscriberRecalculateHeight (_merge_sub m) height
1818 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"
1820−scheduleMergeSelf :: HasSpiderTimeline x => Merge x k s -> Height -> EventM x ()
2046+scheduleMergeSelf :: HasSpiderTimeline x => Merge x k v s -> Height -> EventM x ()
1821scheduleMergeSelf m height = scheduleMerge' height (_merge_heightRef m) $ do
2047scheduleMergeSelf m height = scheduleMerge' height (_merge_heightRef m) $ do
1822 vals <- liftIO $ readIORef $ _merge_accumRef m
2048 vals <- liftIO $ readIORef $ _merge_accumRef m
1823− 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
1824 --TODO: Assert that m is not empty
2052 --TODO: Assert that m is not empty
1825 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
1827−mergeSubscriber :: forall x k s a. (HasSpiderTimeline x, GCompare k) => Merge x k s -> EventM x (k a) -> Subscriber x 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)
1828−mergeSubscriber m getKey = Subscriber
2077+mergeSubscriber subscribed m getKey = Subscriber
1829 { subscriberPropagate = \a -> do
2078 { subscriberPropagate = \a -> do
1830 oldM <- liftIO $ readIORef $ _merge_accumRef m
2079 oldM <- liftIO $ readIORef $ _merge_accumRef m
1831 k <- getKey
2080 k <- getKey
1832− let newM = DMap.insertWith (error $ "Same key fired multiple times for Merge") k (Identity a) oldM
2081+ let newM = DMap.insertWith (error "Same key fired multiple times for Merge") k a oldM
1833 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)
1834 liftIO $ writeIORef (_merge_accumRef m) $! newM
2083 liftIO $ writeIORef (_merge_accumRef m) $! newM
1835 when (DMap.null oldM) $ do -- Only schedule the firing once
2084 when (DMap.null oldM) $ do -- Only schedule the firing once
1836 height <- liftIO $ readIORef $ _merge_heightRef m
2085 height <- liftIO $ readIORef $ _merge_heightRef m
1837− --TODO: assertions about height
2086+ checkCycle subscribed
1838− currentHeight <- getCurrentHeight
2087+
1839− when (height <= currentHeight) $ do
1840− if height /= invalidHeight
1842− myStack <- liftIO $ whoCreatedIORef undefined --TODO
1843− error $ "Height (" ++ show height ++ ") is not greater than current height (" ++ show currentHeight ++ ")\n" ++ unlines (reverse myStack)
1846− nodesInvolvedInCycle <- walkInvalidHeightParents $ eventSubscribedMerge subscribed
1847− stacks <- forM nodesInvolvedInCycle $ \(Some.This es) -> whoCreatedEventSubscribed es
1848− let cycleInfo = ":\n" <> drawForest (listsToForest stacks)
1852− error $ "Causality loop found" <> cycleInfo
1853 scheduleMergeSelf m height
2088 scheduleMergeSelf m height
1854 , 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
1855 modifyIORef' (_merge_heightBagRef m) $ heightBagRemove old
2090 modifyIORef' (_merge_heightBagRef m) $ heightBagRemove old
@@ -1860,30 +2095,45 @@ mergeSubscriber m getKey = Subscriber
1862--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
1863−updateMerge :: (HasSpiderTimeline x, GCompare k) => Merge x k s -> MergeUpdateFunc k 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
1864−updateMerge m updateFunc p = SomeMergeUpdate updateMe (invalidateMergeHeight m) (revalidateMergeHeight m)
2099+updateMerge subscribed m updateFunc p = SomeMergeUpdate updateMe (invalidateMergeHeight m) (revalidateMergeHeight m)
1865 where updateMe = do
2100 where updateMe = do
1866 oldParents <- liftIO $ readIORef $ _merge_parentsRef m
2101 oldParents <- liftIO $ readIORef $ _merge_parentsRef m
1867− (subscriptionsToKill, newParents) <- updateFunc (mergeSubscriber m) (_merge_heightBagRef m) oldParents p
2102+ (subscriptionsToKill, newParents) <- updateFunc (mergeSubscriber subscribed m) (_merge_heightBagRef m) oldParents p
1868 liftIO $ writeIORef (_merge_parentsRef m) $! newParents
2103 liftIO $ writeIORef (_merge_parentsRef m) $! newParents
1869 return subscriptionsToKill
2104 return subscriptionsToKill
1871−{-# INLINE mergeCheap' #-}
2106+{-# INLINE mergeGCheap' #-}
2107+mergeGCheap' :: forall k v x p s q. (HasSpiderTimeline x, GCompare k, PatchTarget p ~ DMap k q)
1872−mergeCheap' :: forall k x p s. (HasSpiderTimeline x, GCompare k, PatchTarget p ~ DMap k (Event x)) => MergeInitFunc k x s -> MergeUpdateFunc k x p s -> MergeDestroyFunc k s -> Dynamic x p -> Event x (DMap k Identity)
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)
1873−mergeCheap' getInitialSubscribers updateFunc destroy d = Event $ \sub -> do
2109+mergeGCheap' getParent getInitialSubscribers updateFunc destroy d = Event $ \sub -> do
1874 initialParents <- readBehaviorUntracked $ dynamicCurrent d
2110 initialParents <- readBehaviorUntracked $ dynamicCurrent d
1875 accumRef <- liftIO $ newIORef $ error "merge: accumRef not yet initialized"
2111 accumRef <- liftIO $ newIORef $ error "merge: accumRef not yet initialized"
1876 heightRef <- liftIO $ newIORef $ error "merge: heightRef not yet initialized"
2112 heightRef <- liftIO $ newIORef $ error "merge: heightRef not yet initialized"
1877 heightBagRef <- liftIO $ newIORef $ error "merge: heightBagRef not yet initialized"
2113 heightBagRef <- liftIO $ newIORef $ error "merge: heightBagRef not yet initialized"
1878 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
1879− let m = Merge
2129+ m = Merge
1880 { _merge_parentsRef = parentsRef
2130 { _merge_parentsRef = parentsRef
1881 , _merge_heightBagRef = heightBagRef
2131 , _merge_heightBagRef = heightBagRef
1882 , _merge_heightRef = heightRef
2132 , _merge_heightRef = heightRef
1883 , _merge_sub = sub
2133 , _merge_sub = sub
1884 , _merge_accumRef = accumRef
2134 , _merge_accumRef = accumRef
1886− (dm, heights, initialParentState) <- getInitialSubscribers initialParents $ mergeSubscriber m
2136+ (dm, heights, initialParentState) <- getInitialSubscribers initialParents $ mergeSubscriber subscribed m
1887 let myHeightBag = heightBagFromList $ filter (/= invalidHeight) heights
2137 let myHeightBag = heightBagFromList $ filter (/= invalidHeight) heights
1888 myHeight = if invalidHeight `elem` heights
2138 myHeight = if invalidHeight `elem` heights
1889 then invalidHeight
2139 then invalidHeight
@@ -1892,50 +2142,57 @@ mergeCheap' getInitialSubscribers updateFunc destroy d = Event $ \sub -> do
1892 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
1893 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)
1894 else (Nothing, dm)
2144 else (Nothing, dm)
1895− unless (DMap.null accum) $ do
1896− scheduleMergeSelf m myHeight
2145+ unless (DMap.null accum) $ scheduleMergeSelf m myHeight
1897 liftIO $ writeIORef accumRef $! accum
2146 liftIO $ writeIORef accumRef $! accum
1898 liftIO $ writeIORef heightRef $! myHeight
2147 liftIO $ writeIORef heightRef $! myHeight
1899 liftIO $ writeIORef heightBagRef $! myHeightBag
2148 liftIO $ writeIORef heightBagRef $! myHeightBag
1900− changeSubdRef <- liftIO $ newIORef $ error "getMergeSubscribed: changeSubdRef not yet initialized"
1901 liftIO $ writeIORef parentsRef $! initialParentState
2149 liftIO $ writeIORef parentsRef $! initialParentState
1902 defer $ SomeMergeInit $ do
2150 defer $ SomeMergeInit $ do
1903− let s = Subscriber
2151+ let changeSubscriber = Subscriber
1904 { subscriberPropagate = \a -> {-# SCC "traverseMergeChange" #-} do
2152 { subscriberPropagate = \a -> {-# SCC "traverseMergeChange" #-} do
1905− tracePropagate (Proxy :: Proxy x) $ "SubscriberMerge/Change"
2153+ tracePropagate (Proxy :: Proxy x) "SubscriberMerge/Change"
1906− defer $ updateMerge m updateFunc a
2154+ defer $ updateMerge subscribed m updateFunc a
1907 , subscriberInvalidateHeight = \_ -> return ()
2155 , subscriberInvalidateHeight = \_ -> return ()
1908 , subscriberRecalculateHeight = \_ -> return ()
2156 , subscriberRecalculateHeight = \_ -> return ()
1910− (changeSubscription, change) <- subscribeAndRead (dynamicUpdated d) s
2158+ (changeSubscription, change) <- subscribeAndRead (dynamicUpdated d) changeSubscriber
1911− forM_ change $ \c -> defer $ updateMerge m updateFunc c
2159+ forM_ change $ \c -> defer $ updateMerge subscribed m updateFunc c
1912 -- 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.
1913 -- 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
1914 -- its subscription.
2162 -- its subscription.
1915− liftIO $ writeIORef changeSubdRef (s, changeSubscription)
2163+ liftIO $ writeIORef changeSubdRef (changeSubscriber, changeSubscription)
1916 let unsubscribeAll = destroy =<< readIORef parentsRef
2164 let unsubscribeAll = destroy =<< readIORef parentsRef
1917− return ( EventSubscription unsubscribeAll $ EventSubscribed heightRef $ toAny (parentsRef, changeSubdRef)
2166+ return (EventSubscription unsubscribeAll subscribed, occ)
1921−mergeInt :: forall x a. (HasSpiderTimeline x) => Dynamic x (PatchIntMap (Event x a)) -> Event x (IntMap a)
2169+mergeInt :: forall x a. (HasSpiderTimeline x) => DynamicS x (PatchIntMap (Event x a)) -> Event x (IntMap a)
1922mergeInt = cacheEvent . mergeIntCheap
2170mergeInt = cacheEvent . mergeIntCheap
1924{-# INLINABLE mergeIntCheap #-}
2172{-# INLINABLE mergeIntCheap #-}
1925−mergeIntCheap :: forall x a. (HasSpiderTimeline x) => Dynamic x (PatchIntMap (Event x a)) -> Event x (IntMap a)
2173+mergeIntCheap :: forall x a. (HasSpiderTimeline x) => DynamicS x (PatchIntMap (Event x a)) -> Event x (IntMap a)
1926mergeIntCheap d = Event $ \sub -> do
2174mergeIntCheap d = Event $ \sub -> do
1927 initialParents <- readBehaviorUntracked $ dynamicCurrent d
2175 initialParents <- readBehaviorUntracked $ dynamicCurrent d
1928 accum <- liftIO $ FastMutableIntMap.newEmpty
2176 accum <- liftIO $ FastMutableIntMap.newEmpty
1929 heightRef <- liftIO $ newIORef zeroHeight
2177 heightRef <- liftIO $ newIORef zeroHeight
1930 heightBagRef <- liftIO $ newIORef heightBagEmpty
2178 heightBagRef <- liftIO $ newIORef heightBagEmpty
1931 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
1932 let scheduleSelf = do
2190 let scheduleSelf = do
1933 height <- liftIO $ readIORef $ heightRef
2191 height <- liftIO $ readIORef $ heightRef
1934 scheduleMerge' height heightRef $ do
2192 scheduleMerge' height heightRef $ do
1935 vals <- liftIO $ FastMutableIntMap.getFrozenAndClear accum
2193 vals <- liftIO $ FastMutableIntMap.getFrozenAndClear accum
1936 subscriberPropagate sub vals
2194 subscriberPropagate sub vals
1937− invalidateMyHeight = do
1938− invalidateMergeHeight' heightRef sub
2195+ invalidateMyHeight = invalidateMergeHeight' heightRef sub
1939 recalculateMyHeight = do
2196 recalculateMyHeight = do
1940 currentHeight <- readIORef heightRef
2197 currentHeight <- readIORef heightRef
1941 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?
@@ -1945,12 +2202,14 @@ mergeIntCheap d = Event $ \sub -> do
1945 LT -> return ()
2202 LT -> return ()
1946 EQ -> do
2203 EQ -> do
1947 let height = succHeight $ heightBagMax heights
2204 let height = succHeight $ heightBagMax heights
1948− when debugInvalidateHeight $ putStrLn $ "recalculateSubscriberHeight: height: " <> show height
2205+ traceInvalidateHeight $ "recalculateSubscriberHeight: height: " <> show height
1949 writeIORef heightRef $! height
2206 writeIORef heightRef $! height
1950 subscriberRecalculateHeight sub height
2207 subscriberRecalculateHeight sub height
1951 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"
1952 mySubscriber k = Subscriber
2209 mySubscriber k = Subscriber
1953 { subscriberPropagate = \a -> do
2210 { subscriberPropagate = \a -> do
2211+ checkCycle subscribed
1954 wasEmpty <- liftIO $ FastMutableIntMap.isEmpty accum
2213 wasEmpty <- liftIO $ FastMutableIntMap.isEmpty accum
1955 liftIO $ FastMutableIntMap.insert accum k a
2214 liftIO $ FastMutableIntMap.insert accum k a
1956 when wasEmpty scheduleSelf
2215 when wasEmpty scheduleSelf
@@ -1984,7 +2243,6 @@ mergeIntCheap d = Event $ \sub -> do
1984 else liftIO $ Just <$> FastMutableIntMap.getFrozenAndClear accum
2243 else liftIO $ Just <$> FastMutableIntMap.getFrozenAndClear accum
1985 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
1986 return Nothing
2245 return Nothing
1987− changeSubdRef <- liftIO $ newIORef $ error "getMergeSubscribed: changeSubdRef not yet initialized"
1988 defer $ SomeMergeInit $ do
2246 defer $ SomeMergeInit $ do
1989 let updateMe a = SomeMergeUpdate u invalidateMyHeight recalculateMyHeight
2247 let updateMe a = SomeMergeUpdate u invalidateMyHeight recalculateMyHeight
@@ -1998,35 +2256,39 @@ mergeIntCheap d = Event $ \sub -> do
1998 oldParents <- liftIO $ FastMutableIntMap.applyPatch parents newSubscriptions
2256 oldParents <- liftIO $ FastMutableIntMap.applyPatch parents newSubscriptions
1999 liftIO $ for_ oldParents $ \oldParent -> do
2257 liftIO $ for_ oldParents $ \oldParent -> do
2000 oldParentHeight <- getEventSubscribedHeight $ _eventSubscription_subscribed oldParent
2258 oldParentHeight <- getEventSubscribedHeight $ _eventSubscription_subscribed oldParent
2260+ print ("updateMe", oldParentHeight)
2001 modifyIORef' heightBagRef $ heightBagRemove oldParentHeight
2261 modifyIORef' heightBagRef $ heightBagRemove oldParentHeight
2002 return $ IntMap.elems oldParents
2262 return $ IntMap.elems oldParents
2003− let s = Subscriber
2263+ let changeSubscriber = Subscriber
2004 { subscriberPropagate = \a -> {-# SCC "traverseMergeChange" #-} do
2264 { subscriberPropagate = \a -> {-# SCC "traverseMergeChange" #-} do
2005 tracePropagate (Proxy :: Proxy x) $ "SubscriberMergeInt/Change"
2265 tracePropagate (Proxy :: Proxy x) $ "SubscriberMergeInt/Change"
2006 defer $ updateMe a
2266 defer $ updateMe a
2007 , subscriberInvalidateHeight = \_ -> return ()
2267 , subscriberInvalidateHeight = \_ -> return ()
2008 , subscriberRecalculateHeight = \_ -> return ()
2268 , subscriberRecalculateHeight = \_ -> return ()
2010− (changeSubscription, change) <- subscribeAndRead (dynamicUpdated d) s
2270+ (changeSubscription, change) <- subscribeAndRead (dynamicUpdated d) changeSubscriber
2011 forM_ change $ \c -> defer $ updateMe c
2271 forM_ change $ \c -> defer $ updateMe c
2012 -- 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.
2013 -- 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
2014 -- its subscription.
2274 -- its subscription.
2015− liftIO $ writeIORef changeSubdRef (s, changeSubscription)
2275+ liftIO $ writeIORef changeSubdRef (changeSubscriber, changeSubscription)
2016 let unsubscribeAll = traverse_ unsubscribe =<< FastMutableIntMap.getFrozenAndClear parents
2276 let unsubscribeAll = traverse_ unsubscribe =<< FastMutableIntMap.getFrozenAndClear parents
2017− return ( EventSubscription unsubscribeAll $ EventSubscribed heightRef $ toAny (parents, changeSubdRef)
2279+ return (EventSubscription unsubscribeAll subscribed, occ)
2021newtype EventSelector x k = EventSelector { select :: forall a. k a -> Event x a }
2281newtype EventSelector x k = EventSelector { select :: forall a. k a -> Event x a }
2282+newtype EventSelectorG x k v = EventSelectorG { selectG :: forall a. k a -> Event x (v a) }
2023−fan :: (HasSpiderTimeline x, GCompare k) => Event x (DMap k Identity) -> EventSelector x k
2284+fanG :: (HasSpiderTimeline x, GCompare k) => Event x (DMap k v) -> EventSelectorG x k v
2024−fan e =
2285+fanG e = unsafePerformIO $ do
2286+ ref <- newIORef Nothing
2025 let f = Fan
2287 let f = Fan
2026 { fanParent = e
2288 { fanParent = e
2027− , fanSubscribed = unsafeNewIORef e Nothing
2289+ , fanSubscribed = ref
2029− in EventSelector $ \k -> eventFan k f
2291+ pure $ EventSelectorG $ \k -> eventFan k f
2031runHoldInits :: HasSpiderTimeline x => IORef [SomeHoldInit x] -> IORef [SomeDynInit x] -> IORef [SomeMergeInit x] -> EventM x ()
2293runHoldInits :: HasSpiderTimeline x => IORef [SomeHoldInit x] -> IORef [SomeDynInit x] -> IORef [SomeMergeInit x] -> EventM x ()
2032runHoldInits holdInitRef dynInitRef mergeInitRef = do
2294runHoldInits holdInitRef dynInitRef mergeInitRef = do
@@ -2079,37 +2341,37 @@ clearEventEnv (EventEnv toAssignRef holdInitRef dynInitRef mergeUpdateRef mergeI
2080-- | Run an event action outside of a frame
2342-- | Run an event action outside of a frame
2081runFrame :: forall x a. HasSpiderTimeline x => EventM x a -> SpiderHost x a --TODO: This function also needs to hold the mutex
2343runFrame :: forall x a. HasSpiderTimeline x => EventM x a -> SpiderHost x a --TODO: This function also needs to hold the mutex
2082−runFrame a = SpiderHost $ ask >>= \_ -> lift $ do
2344+runFrame a = SpiderHost $ do
2083− let env = _spiderTimeline_eventEnv (spiderTimeline :: SpiderTimelineEnv x)
2345+ let env = _spiderTimeline_eventEnv $ unSTE (spiderTimeline :: SpiderTimelineEnv x)
2084 let go = do
2346 let go = do
2085 result <- a
2347 result <- a
2086 runHoldInits (eventEnvHoldInits env) (eventEnvDynInits env) (eventEnvMergeInits env) -- This must happen before doing the assignments, in case subscribing a Hold causes existing Holds to be read by the newly-propagated events
2348 runHoldInits (eventEnvHoldInits env) (eventEnvDynInits env) (eventEnvMergeInits env) -- This must happen before doing the assignments, in case subscribing a Hold causes existing Holds to be read by the newly-propagated events
2087 return result
2349 return result
2088 result <- runEventM go
2350 result <- runEventM go
2089 toClear <- readIORef $ eventEnvClears env
2351 toClear <- readIORef $ eventEnvClears env
2090− forM_ toClear $ \(SomeClear ref) -> {-# SCC "clear" #-} writeIORef ref Nothing
2352+ forM_ toClear $ \(Some (Clear ref)) -> {-# SCC "clear" #-} writeIORef ref Nothing
2091 toClearInt <- readIORef $ eventEnvIntClears env
2353 toClearInt <- readIORef $ eventEnvIntClears env
2092− forM_ toClearInt $ \(SomeIntClear ref) -> {-# SCC "intClear" #-} writeIORef ref $! IntMap.empty
2354+ forM_ toClearInt $ \(Some (IntClear ref)) -> {-# SCC "intClear" #-} writeIORef ref $! IntMap.empty
2093 toClearRoot <- readIORef $ eventEnvRootClears env
2355 toClearRoot <- readIORef $ eventEnvRootClears env
2094− forM_ toClearRoot $ \(SomeRootClear ref) -> {-# SCC "rootClear" #-} writeIORef ref $! DMap.empty
2356+ forM_ toClearRoot $ \(Some (RootClear ref)) -> {-# SCC "rootClear" #-} writeIORef ref $! DMap.empty
2095 toAssign <- readIORef $ eventEnvAssignments env
2357 toAssign <- readIORef $ eventEnvAssignments env
2096 toReconnectRef <- newIORef []
2358 toReconnectRef <- newIORef []
2097 coincidenceInfos <- readIORef $ eventEnvResetCoincidences env
2359 coincidenceInfos <- readIORef $ eventEnvResetCoincidences env
2098 forM_ toAssign $ \(SomeAssignment vRef iRef v) -> {-# SCC "assignment" #-} do
2360 forM_ toAssign $ \(SomeAssignment vRef iRef v) -> {-# SCC "assignment" #-} do
2099 writeIORef vRef v
2361 writeIORef vRef v
2100− when debugInvalidate $ putStrLn $ "Invalidating Hold"
2362+ traceInvalidate $ "Invalidating Hold"
2101 writeIORef iRef =<< evaluate =<< invalidate toReconnectRef =<< readIORef iRef
2363 writeIORef iRef =<< evaluate =<< invalidate toReconnectRef =<< readIORef iRef
2102 mergeUpdates <- readIORef $ eventEnvMergeUpdates env
2364 mergeUpdates <- readIORef $ eventEnvMergeUpdates env
2103 writeIORef (eventEnvMergeUpdates env) []
2365 writeIORef (eventEnvMergeUpdates env) []
2104− when debugPropagate $ putStrLn "Updating merges"
2366+ tracePropagate (Proxy::Proxy x) $ "Updating merges"
2105 mergeSubscriptionsToKill <- runEventM $ concat <$> mapM _someMergeUpdate_update mergeUpdates
2367 mergeSubscriptionsToKill <- runEventM $ concat <$> mapM _someMergeUpdate_update mergeUpdates
2106− when debugPropagate $ putStrLn "Updating merges done"
2368+ tracePropagate (Proxy::Proxy x) $ "Updating merges done"
2107 toReconnect <- readIORef toReconnectRef
2369 toReconnect <- readIORef toReconnectRef
2108 clearEventEnv env
2370 clearEventEnv env
2109 switchSubscriptionsToKill <- forM toReconnect $ \(SomeSwitchSubscribed subscribed) -> {-# SCC "switchSubscribed" #-} do
2371 switchSubscriptionsToKill <- forM toReconnect $ \(SomeSwitchSubscribed subscribed) -> {-# SCC "switchSubscribed" #-} do
2110 oldSubscription <- readIORef $ switchSubscribedCurrentParent subscribed
2372 oldSubscription <- readIORef $ switchSubscribedCurrentParent subscribed
2111 wi <- readIORef $ switchSubscribedOwnWeakInvalidator subscribed
2373 wi <- readIORef $ switchSubscribedOwnWeakInvalidator subscribed
2112− when debugInvalidate $ putStrLn $ "Finalizing invalidator for Switch" <> showNodeId subscribed
2374+ traceInvalidate $ "Finalizing invalidator for Switch" <> showNodeId subscribed
2113 finalize wi
2375 finalize wi
2114 i <- evaluate $ switchSubscribedOwnInvalidator subscribed
2376 i <- evaluate $ switchSubscribedOwnInvalidator subscribed
2115 wi' <- mkWeakPtrWithDebug i "wi'"
2377 wi' <- mkWeakPtrWithDebug i "wi'"
@@ -2120,10 +2382,10 @@ runFrame a = SpiderHost $ ask >>= \_ -> lift $ do
2120 runEventM $ runHoldInits (eventEnvHoldInits env) (eventEnvDynInits env) (eventEnvMergeInits env) --TODO: Is this actually OK? It seems like it should be, since we know that no events are firing at this point, but it still seems inelegant
2382 runEventM $ runHoldInits (eventEnvHoldInits env) (eventEnvDynInits env) (eventEnvMergeInits env) --TODO: Is this actually OK? It seems like it should be, since we know that no events are firing at this point, but it still seems inelegant
2121 --TODO: Make sure we touch the pieces of the SwitchSubscribed at the appropriate times
2383 --TODO: Make sure we touch the pieces of the SwitchSubscribed at the appropriate times
2122 sub <- newSubscriberSwitch subscribed
2384 sub <- newSubscriberSwitch subscribed
2123− subscription <- runReaderT (unSpiderHost (runFrame ({-# SCC "subscribeSwitch" #-} subscribe e sub))) spiderTimeline --TODO: Assert that the event isn't firing --TODO: This should not loop because none of the events should be firing, but still, it is inefficient
2385+ subscription <- unSpiderHost $ runFrame $ {-# SCC "subscribeSwitch" #-} subscribe e sub --TODO: Assert that the event isn't firing --TODO: This should not loop because none of the events should be firing, but still, it is inefficient
2125 stackTrace <- liftIO $ fmap renderStack $ ccsToStrings =<< (getCCSOf $! switchSubscribedParent subscribed)
2387 stackTrace <- liftIO $ fmap renderStack $ ccsToStrings =<< (getCCSOf $! switchSubscribedParent subscribed)
2126− liftIO $ putStrLn $ (++stackTrace) $ "subd' subscribed to " ++ case e of
2388+ liftIO $ debugStrLn $ (++stackTrace) $ "subd' subscribed to " ++ case e of
2127 EventRoot _ -> "EventRoot"
2389 EventRoot _ -> "EventRoot"
2128 EventNever -> "EventNever"
2390 EventNever -> "EventNever"
2129 _ -> "something else"
2391 _ -> "something else"
@@ -2138,7 +2400,7 @@ runFrame a = SpiderHost $ ask >>= \_ -> lift $ do
2138 myHeight <- readIORef $ switchSubscribedHeight subscribed
2400 myHeight <- readIORef $ switchSubscribedHeight subscribed
2139 when (parentHeight /= myHeight) $ do
2401 when (parentHeight /= myHeight) $ do
2140 writeIORef (switchSubscribedHeight subscribed) $! invalidHeight
2402 writeIORef (switchSubscribedHeight subscribed) $! invalidHeight
2141− WeakBag.traverse (switchSubscribedSubscribers subscribed) $ invalidateSubscriberHeight myHeight
2403+ WeakBag.traverse_ (switchSubscribedSubscribers subscribed) $ invalidateSubscriberHeight myHeight
2142 mapM_ _someMergeUpdate_invalidateHeight mergeUpdates --TODO: In addition to when the patch is completely empty, we should also not run this if it has some Nothing values, but none of them have actually had any effect; potentially, we could even check for Just values with no effect (e.g. by comparing their IORefs and ignoring them if they are unchanged); actually, we could just check if the new height is different
2404 mapM_ _someMergeUpdate_invalidateHeight mergeUpdates --TODO: In addition to when the patch is completely empty, we should also not run this if it has some Nothing values, but none of them have actually had any effect; potentially, we could even check for Just values with no effect (e.g. by comparing their IORefs and ignoring them if they are unchanged); actually, we could just check if the new height is different
2143 forM_ coincidenceInfos $ \(SomeResetCoincidence subscription mcs) -> do
2405 forM_ coincidenceInfos $ \(SomeResetCoincidence subscription mcs) -> do
2144 unsubscribe subscription
2406 unsubscribe subscription
@@ -2179,7 +2441,7 @@ invalidateCoincidenceHeight subscribed = do
2179 oldHeight <- readIORef $ coincidenceSubscribedHeight subscribed
2441 oldHeight <- readIORef $ coincidenceSubscribedHeight subscribed
2180 when (oldHeight /= invalidHeight) $ do
2442 when (oldHeight /= invalidHeight) $ do
2181 writeIORef (coincidenceSubscribedHeight subscribed) $! invalidHeight
2443 writeIORef (coincidenceSubscribedHeight subscribed) $! invalidHeight
2182− WeakBag.traverse (coincidenceSubscribedSubscribers subscribed) $ invalidateSubscriberHeight oldHeight
2444+ WeakBag.traverse_ (coincidenceSubscribedSubscribers subscribed) $ invalidateSubscriberHeight oldHeight
2184updateSwitchHeight :: Height -> SwitchSubscribed x a -> IO ()
2446updateSwitchHeight :: Height -> SwitchSubscribed x a -> IO ()
2185updateSwitchHeight new subscribed = do
2447updateSwitchHeight new subscribed = do
@@ -2187,7 +2449,7 @@ updateSwitchHeight new subscribed = do
2187 when (oldHeight == invalidHeight) $ do --TODO: This 'when' should probably be an assertion
2449 when (oldHeight == invalidHeight) $ do --TODO: This 'when' should probably be an assertion
2188 when (new /= invalidHeight) $ do --TODO: This 'when' should probably be an assertion
2450 when (new /= invalidHeight) $ do --TODO: This 'when' should probably be an assertion
2189 writeIORef (switchSubscribedHeight subscribed) $! new
2451 writeIORef (switchSubscribedHeight subscribed) $! new
2190− WeakBag.traverse (switchSubscribedSubscribers subscribed) $ recalculateSubscriberHeight new
2452+ WeakBag.traverse_ (switchSubscribedSubscribers subscribed) $ recalculateSubscriberHeight new
2192recalculateCoincidenceHeight :: CoincidenceSubscribed x a -> IO ()
2454recalculateCoincidenceHeight :: CoincidenceSubscribed x a -> IO ()
2193recalculateCoincidenceHeight subscribed = do
2455recalculateCoincidenceHeight subscribed = do
@@ -2196,7 +2458,7 @@ recalculateCoincidenceHeight subscribed = do
2196 height <- calculateCoincidenceHeight subscribed
2458 height <- calculateCoincidenceHeight subscribed
2197 when (height /= invalidHeight) $ do
2459 when (height /= invalidHeight) $ do
2198 writeIORef (coincidenceSubscribedHeight subscribed) $! height
2460 writeIORef (coincidenceSubscribedHeight subscribed) $! height
2199− WeakBag.traverse (coincidenceSubscribedSubscribers subscribed) $ recalculateSubscriberHeight height
2461+ WeakBag.traverse_ (coincidenceSubscribedSubscribers subscribed) $ recalculateSubscriberHeight height
2201calculateSwitchHeight :: SwitchSubscribed x a -> IO Height
2463calculateSwitchHeight :: SwitchSubscribed x a -> IO Height
2202calculateSwitchHeight subscribed = getEventSubscribedHeight . _eventSubscription_subscribed =<< readIORef (switchSubscribedCurrentParent subscribed)
2464calculateSwitchHeight subscribed = getEventSubscribedHeight . _eventSubscription_subscribed =<< readIORef (switchSubscribedCurrentParent subscribed)
@@ -2235,9 +2497,6 @@ invalidate toReconnectRef wis = do
2235-- Reflex integration
2497-- Reflex integration
2236--------------------------------------------------------------------------------
2498--------------------------------------------------------------------------------
2238−-- When we're specializing, we include this from Reflex.Class instead, because
2239−-- it needs access to these types; when we're not, we want them here, so our
2240−-- instance isn't an orphan instance.
2241-- | Designates the default, global Spider timeline
2500-- | Designates the default, global Spider timeline
2242data SpiderTimeline x
2501data SpiderTimeline x
2243type role SpiderTimeline nominal
2502type role SpiderTimeline nominal
@@ -2261,6 +2520,8 @@ instance HasSpiderTimeline x => Reflex.Class.MonadHold (SpiderTimeline x) (Event
2261 {-# INLINABLE headE #-}
2520 {-# INLINABLE headE #-}
2262 headE = R.slowHeadE
2521 headE = R.slowHeadE
2263-- 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
2265instance Reflex.Class.MonadSample (SpiderTimeline x) (SpiderPullM x) where
2526instance Reflex.Class.MonadSample (SpiderTimeline x) (SpiderPullM x) where
2266 {-# INLINABLE sample #-}
2527 {-# INLINABLE sample #-}
@@ -2282,6 +2543,9 @@ instance HasSpiderTimeline x => Reflex.Class.MonadHold (SpiderTimeline x) (Spide
2282 {-# INLINABLE headE #-}
2543 {-# INLINABLE headE #-}
2283 headE = R.slowHeadE
2544 headE = R.slowHeadE
2284-- 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
2286instance HasSpiderTimeline x => Monad (Reflex.Class.Dynamic (SpiderTimeline x)) where
2550instance HasSpiderTimeline x => Monad (Reflex.Class.Dynamic (SpiderTimeline x)) where
2287 {-# INLINE return #-}
2551 {-# INLINE return #-}
@@ -2290,11 +2554,13 @@ instance HasSpiderTimeline x => Monad (Reflex.Class.Dynamic (SpiderTimeline x))
2290 x >>= f = SpiderDynamic $ dynamicDynIdentity $ newJoinDyn $ newMapDyn (unSpiderDynamic . f) $ unSpiderDynamic x
2554 x >>= f = SpiderDynamic $ dynamicDynIdentity $ newJoinDyn $ newMapDyn (unSpiderDynamic . f) $ unSpiderDynamic x
2291 {-# INLINE (>>) #-}
2555 {-# INLINE (>>) #-}
2292 (>>) = (*>)
2556 (>>) = (*>)
2557+#if !MIN_VERSION_base(4,13,0)
2293 {-# INLINE fail #-}
2558 {-# INLINE fail #-}
2294 fail _ = error "Dynamic does not support 'fail'"
2559 fail _ = error "Dynamic does not support 'fail'"
2296{-# INLINABLE newJoinDyn #-}
2562{-# INLINABLE newJoinDyn #-}
2297−newJoinDyn :: HasSpiderTimeline x => Reflex.Spider.Internal.Dynamic x (Identity (Reflex.Spider.Internal.Dynamic x (Identity a))) -> Reflex.Spider.Internal.Dyn x (Identity a)
2563+newJoinDyn :: HasSpiderTimeline x => DynamicS x (Identity (DynamicS x (Identity a))) -> Reflex.Spider.Internal.Dyn x (Identity a)
2298newJoinDyn d =
2564newJoinDyn d =
2299 let readV0 = readBehaviorTracked . dynamicCurrent =<< readBehaviorTracked (dynamicCurrent d)
2565 let readV0 = readBehaviorTracked . dynamicCurrent =<< readBehaviorTracked (dynamicCurrent d)
2300 eOuter = Reflex.Spider.Internal.push (fmap (Just . Identity) . readBehaviorUntracked . dynamicCurrent . runIdentity) $ dynamicUpdated d
2566 eOuter = Reflex.Spider.Internal.push (fmap (Just . Identity) . readBehaviorUntracked . dynamicCurrent . runIdentity) $ dynamicUpdated d
@@ -2304,9 +2570,13 @@ newJoinDyn d =
2304 in Reflex.Spider.Internal.unsafeBuildDynamic readV0 v'
2570 in Reflex.Spider.Internal.unsafeBuildDynamic readV0 v'
2306instance HasSpiderTimeline x => Functor (Reflex.Class.Dynamic (SpiderTimeline x)) where
2572instance HasSpiderTimeline x => Functor (Reflex.Class.Dynamic (SpiderTimeline x)) where
2307− fmap f = SpiderDynamic . newMapDyn f . unSpiderDynamic
2573+ fmap = mapDynamicSpider
2308 x <$ d = R.unsafeBuildDynamic (return x) $ x <$ R.updated d
2574 x <$ d = R.unsafeBuildDynamic (return x) $ x <$ R.updated d
2576+mapDynamicSpider :: HasSpiderTimeline x => (a -> b) -> Reflex.Class.Dynamic (SpiderTimeline x) a -> Reflex.Class.Dynamic (SpiderTimeline x) b
2577+mapDynamicSpider f = SpiderDynamic . newMapDyn f . unSpiderDynamic
2578+{-# INLINE [1] mapDynamicSpider #-}
2310instance HasSpiderTimeline x => Applicative (Reflex.Class.Dynamic (SpiderTimeline x)) where
2580instance HasSpiderTimeline x => Applicative (Reflex.Class.Dynamic (SpiderTimeline x)) where
2311 pure = SpiderDynamic . dynamicConst
2581 pure = SpiderDynamic . dynamicConst
2312#if MIN_VERSION_base(4,10,0)
2582#if MIN_VERSION_base(4,10,0)
@@ -2325,7 +2595,7 @@ holdDynSpiderEventM v0 e = fmap (SpiderDynamic . dynamicHoldIdentity) $ Reflex.S
2325holdIncrementalSpiderEventM :: (HasSpiderTimeline x, Patch p) => PatchTarget p -> Reflex.Class.Event (SpiderTimeline x) p -> EventM x (Reflex.Class.Incremental (SpiderTimeline x) p)
2595holdIncrementalSpiderEventM :: (HasSpiderTimeline x, Patch p) => PatchTarget p -> Reflex.Class.Event (SpiderTimeline x) p -> EventM x (Reflex.Class.Incremental (SpiderTimeline x) p)
2326holdIncrementalSpiderEventM v0 e = fmap (SpiderIncremental . dynamicHold) $ Reflex.Spider.Internal.hold v0 $ unSpiderEvent e
2596holdIncrementalSpiderEventM v0 e = fmap (SpiderIncremental . dynamicHold) $ Reflex.Spider.Internal.hold v0 $ unSpiderEvent e
2328−buildDynamicSpiderEventM :: HasSpiderTimeline x => SpiderPullM x a -> Reflex.Class.Event (SpiderTimeline x) a -> EventM x (Reflex.Class.Dynamic (SpiderTimeline x) a)
2598+buildDynamicSpiderEventM :: HasSpiderTimeline x => SpiderPushM x a -> Reflex.Class.Event (SpiderTimeline x) a -> EventM x (Reflex.Class.Dynamic (SpiderTimeline x) a)
2329buildDynamicSpiderEventM getV0 e = fmap (SpiderDynamic . dynamicDynIdentity) $ Reflex.Spider.Internal.buildDynamic (coerce getV0) $ coerce $ unSpiderEvent e
2599buildDynamicSpiderEventM getV0 e = fmap (SpiderDynamic . dynamicDynIdentity) $ Reflex.Spider.Internal.buildDynamic (coerce getV0) $ coerce $ unSpiderEvent e
2331instance HasSpiderTimeline x => Reflex.Class.MonadHold (SpiderTimeline x) (SpiderHost x) where
2601instance HasSpiderTimeline x => Reflex.Class.MonadHold (SpiderTimeline x) (SpiderHost x) where
@@ -2339,6 +2609,9 @@ instance HasSpiderTimeline x => Reflex.Class.MonadHold (SpiderTimeline x) (Spide
2339 buildDynamic getV0 e = runFrame . runSpiderHostFrame $ Reflex.Class.buildDynamic getV0 e
2609 buildDynamic getV0 e = runFrame . runSpiderHostFrame $ Reflex.Class.buildDynamic getV0 e
2340 {-# INLINABLE headE #-}
2610 {-# INLINABLE headE #-}
2341 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
2343instance HasSpiderTimeline x => Reflex.Class.MonadSample (SpiderTimeline x) (SpiderHostFrame x) where
2616instance HasSpiderTimeline x => Reflex.Class.MonadSample (SpiderTimeline x) (SpiderHostFrame x) where
2344 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
@@ -2355,6 +2628,8 @@ instance HasSpiderTimeline x => Reflex.Class.MonadHold (SpiderTimeline x) (Spide
2355 {-# INLINABLE headE #-}
2628 {-# INLINABLE headE #-}
2356 headE = R.slowHeadE
2629 headE = R.slowHeadE
2357-- 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
2359instance HasSpiderTimeline x => Reflex.Class.MonadSample (SpiderTimeline x) (SpiderHost x) where
2634instance HasSpiderTimeline x => Reflex.Class.MonadSample (SpiderTimeline x) (SpiderHost x) where
2360 {-# INLINABLE sample #-}
2635 {-# INLINABLE sample #-}
@@ -2375,6 +2650,8 @@ instance HasSpiderTimeline x => Reflex.Class.MonadHold (SpiderTimeline x) (Refle
2375 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
2376 {-# INLINABLE headE #-}
2651 {-# INLINABLE headE #-}
2377 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
2379--------------------------------------------------------------------------------
2656--------------------------------------------------------------------------------
2380-- Deprecated items
2657-- Deprecated items
@@ -2412,13 +2689,13 @@ instance HasSpiderTimeline x => Reflex.Host.Class.MonadReadEvent (SpiderTimeline
2413 return result
2690 return result
2415−instance Reflex.Host.Class.MonadReflexCreateTrigger (SpiderTimeline x) (SpiderHost x) where
2692+instance HasSpiderTimeline x => Reflex.Host.Class.MonadReflexCreateTrigger (SpiderTimeline x) (SpiderHost x) where
2416− newEventWithTrigger = SpiderHost . lift . fmap SpiderEvent . newEventWithTriggerIO
2693+ newEventWithTrigger = SpiderHost . fmap SpiderEvent . newEventWithTriggerIO
2417− newFanEventWithTrigger f = SpiderHost $ lift $ do
2694+ newFanEventWithTrigger f = SpiderHost $ do
2418 es <- newFanEventWithTriggerIO f
2695 es <- newFanEventWithTriggerIO f
2419 return $ Reflex.Class.EventSelector $ SpiderEvent . Reflex.Spider.Internal.select es
2696 return $ Reflex.Class.EventSelector $ SpiderEvent . Reflex.Spider.Internal.select es
2421−instance Reflex.Host.Class.MonadReflexCreateTrigger (SpiderTimeline x) (SpiderHostFrame x) where
2698+instance HasSpiderTimeline x => Reflex.Host.Class.MonadReflexCreateTrigger (SpiderTimeline x) (SpiderHostFrame x) where
2422 newEventWithTrigger = SpiderHostFrame . EventM . liftIO . fmap SpiderEvent . newEventWithTriggerIO
2699 newEventWithTrigger = SpiderHostFrame . EventM . liftIO . fmap SpiderEvent . newEventWithTriggerIO
2423 newFanEventWithTrigger f = SpiderHostFrame $ EventM $ liftIO $ do
2700 newFanEventWithTrigger f = SpiderHostFrame $ EventM $ liftIO $ do
2424 es <- newFanEventWithTriggerIO f
2701 es <- newFanEventWithTriggerIO f
@@ -2440,7 +2717,7 @@ unsafeNewSpiderTimelineEnv = do
2440#ifdef DEBUG
2717#ifdef DEBUG
2441 depthRef <- newIORef 0
2718 depthRef <- newIORef 0
2443− return $ SpiderTimelineEnv
2720+ return $ STE $ SpiderTimelineEnv
2444 { _spiderTimeline_lock = lock
2721 { _spiderTimeline_lock = lock
2445 , _spiderTimeline_eventEnv = env
2722 , _spiderTimeline_eventEnv = env
2446#ifdef DEBUG
2723#ifdef DEBUG
@@ -2450,19 +2727,19 @@ unsafeNewSpiderTimelineEnv = do
2451-- | Create a new SpiderTimelineEnv
2728-- | Create a new SpiderTimelineEnv
2452newSpiderTimeline :: IO (Some SpiderTimelineEnv)
2729newSpiderTimeline :: IO (Some SpiderTimelineEnv)
2453−newSpiderTimeline = withSpiderTimeline (pure . Some.This)
2730+newSpiderTimeline = withSpiderTimeline (pure . Some)
2455−data LocalSpiderTimeline x s
2732+data LocalSpiderTimeline (x :: Type) s
2457instance Reifies s (SpiderTimelineEnv x) =>
2734instance Reifies s (SpiderTimelineEnv x) =>
2458 HasSpiderTimeline (LocalSpiderTimeline x s) where
2735 HasSpiderTimeline (LocalSpiderTimeline x s) where
2459− spiderTimeline = localSpiderTimeline (Proxy :: Proxy s) $ reflect (Proxy :: Proxy s)
2736+ spiderTimeline = localSpiderTimeline Proxy $ reflect (Proxy :: Proxy s)
2461localSpiderTimeline
2738localSpiderTimeline
2462− :: Proxy s
2739+ :: proxy s
2463 -> SpiderTimelineEnv x
2740 -> SpiderTimelineEnv x
2464 -> SpiderTimelineEnv (LocalSpiderTimeline x s)
2741 -> SpiderTimelineEnv (LocalSpiderTimeline x s)
2465−localSpiderTimeline _ = unsafeCoerce
2742+localSpiderTimeline _ = coerce
2467-- | Pass a new timeline to the given function.
2744-- | Pass a new timeline to the given function.
2468withSpiderTimeline :: (forall x. HasSpiderTimeline x => SpiderTimelineEnv x -> IO r) -> IO r
2745withSpiderTimeline :: (forall x. HasSpiderTimeline x => SpiderTimelineEnv x -> IO r) -> IO r
@@ -2470,18 +2747,18 @@ withSpiderTimeline k = do
2470 env <- unsafeNewSpiderTimelineEnv
2747 env <- unsafeNewSpiderTimelineEnv
2471 reify env $ \s -> k $ localSpiderTimeline s env
2748 reify env $ \s -> k $ localSpiderTimeline s env
2473−newtype SpiderPullM x a = SpiderPullM (BehaviorM x a) deriving (Functor, Applicative, Monad, MonadIO, MonadFix)
2750+newtype SpiderPullM (x :: Type) a = SpiderPullM (BehaviorM x a) deriving (Functor, Applicative, Monad, MonadIO, MonadFix)
2475type ComputeM = EventM
2752type ComputeM = EventM
2477−newtype SpiderPushM x a = SpiderPushM (ComputeM x a) deriving (Functor, Applicative, Monad, MonadIO, MonadFix)
2754+newtype SpiderPushM (x :: Type) a = SpiderPushM (ComputeM x a) deriving (Functor, Applicative, Monad, MonadIO, MonadFix)
2479instance HasSpiderTimeline x => R.Reflex (SpiderTimeline x) where
2756instance HasSpiderTimeline x => R.Reflex (SpiderTimeline x) where
2480 {-# SPECIALIZE instance R.Reflex (SpiderTimeline Global) #-}
2757 {-# SPECIALIZE instance R.Reflex (SpiderTimeline Global) #-}
2481 newtype Behavior (SpiderTimeline x) a = SpiderBehavior { unSpiderBehavior :: Behavior x a }
2758 newtype Behavior (SpiderTimeline x) a = SpiderBehavior { unSpiderBehavior :: Behavior x a }
2482 newtype Event (SpiderTimeline x) a = SpiderEvent { unSpiderEvent :: Event x a }
2759 newtype Event (SpiderTimeline x) a = SpiderEvent { unSpiderEvent :: Event x a }
2483− newtype Dynamic (SpiderTimeline x) a = SpiderDynamic { unSpiderDynamic :: Dynamic x (Identity a) } -- deriving (Functor, Applicative, Monad)
2760+ newtype Dynamic (SpiderTimeline x) a = SpiderDynamic { unSpiderDynamic :: DynamicS x (Identity a) } -- deriving (Functor, Applicative, Monad)
2484− newtype Incremental (SpiderTimeline x) p = SpiderIncremental { unSpiderIncremental :: Dynamic x p }
2761+ newtype Incremental (SpiderTimeline x) p = SpiderIncremental { unSpiderIncremental :: DynamicS x p }
2485 type PullM (SpiderTimeline x) = SpiderPullM x
2762 type PullM (SpiderTimeline x) = SpiderPullM x
2486 type PushM (SpiderTimeline x) = SpiderPushM x
2763 type PushM (SpiderTimeline x) = SpiderPushM x
2487 {-# INLINABLE never #-}
2764 {-# INLINABLE never #-}
@@ -2494,10 +2771,15 @@ instance HasSpiderTimeline x => R.Reflex (SpiderTimeline x) where
2494 pushCheap f = SpiderEvent . pushCheap (coerce f) . unSpiderEvent
2771 pushCheap f = SpiderEvent . pushCheap (coerce f) . unSpiderEvent
2495 {-# INLINABLE pull #-}
2772 {-# INLINABLE pull #-}
2496 pull = SpiderBehavior . pull . coerce
2773 pull = SpiderBehavior . pull . coerce
2497− {-# INLINABLE merge #-}
2774+ {-# INLINABLE fanG #-}
2498− merge = SpiderEvent . merge . dynamicConst . (coerce :: DMap k (R.Event (SpiderTimeline x)) -> DMap k (Event x))
2499− {-# INLINABLE fan #-}
2500− fan e = R.EventSelector $ SpiderEvent . select (fan (unSpiderEvent e))
2775+ fanG e = R.EventSelectorG $ SpiderEvent . selectG (fanG (unSpiderEvent e))
2776+ {-# INLINABLE mergeG #-}
2778+ :: forall k2 (k :: k2 -> *) q (v :: k2 -> *). GCompare k
2779+ => (forall a. q a -> R.Event (SpiderTimeline x) (v a))
2781+ -> R.Event (SpiderTimeline x) (DMap k v)
2782+ mergeG nt = SpiderEvent . mergeG (unSpiderEvent #. nt) . dynamicConst
2501 {-# INLINABLE switch #-}
2783 {-# INLINABLE switch #-}
2502 switch = SpiderEvent . switch . (coerce :: Behavior x (R.Event (SpiderTimeline x) a) -> Behavior x (Event x a)) . unSpiderBehavior
2784 switch = SpiderEvent . switch . (coerce :: Behavior x (R.Event (SpiderTimeline x) a) -> Behavior x (Event x a)) . unSpiderBehavior
2503 {-# INLINABLE coincidence #-}
2785 {-# INLINABLE coincidence #-}
@@ -2505,15 +2787,15 @@ instance HasSpiderTimeline x => R.Reflex (SpiderTimeline x) where
2505 {-# INLINABLE current #-}
2787 {-# INLINABLE current #-}
2506 current = SpiderBehavior . dynamicCurrent . unSpiderDynamic
2788 current = SpiderBehavior . dynamicCurrent . unSpiderDynamic
2507 {-# INLINABLE updated #-}
2789 {-# INLINABLE updated #-}
2508− updated = coerce $ SpiderEvent . dynamicUpdated . unSpiderDynamic
2790+ updated = SpiderEvent #. dynamicUpdated .# fmap coerce . unSpiderDynamic
2509 {-# INLINABLE unsafeBuildDynamic #-}
2791 {-# INLINABLE unsafeBuildDynamic #-}
2510 unsafeBuildDynamic readV0 v' = SpiderDynamic $ dynamicDynIdentity $ unsafeBuildDynamic (coerce readV0) $ coerce $ unSpiderEvent v'
2792 unsafeBuildDynamic readV0 v' = SpiderDynamic $ dynamicDynIdentity $ unsafeBuildDynamic (coerce readV0) $ coerce $ unSpiderEvent v'
2511 {-# INLINABLE unsafeBuildIncremental #-}
2793 {-# INLINABLE unsafeBuildIncremental #-}
2512 unsafeBuildIncremental readV0 dv = SpiderIncremental $ dynamicDyn $ unsafeBuildDynamic (coerce readV0) $ unSpiderEvent dv
2794 unsafeBuildIncremental readV0 dv = SpiderIncremental $ dynamicDyn $ unsafeBuildDynamic (coerce readV0) $ unSpiderEvent dv
2513− {-# INLINABLE mergeIncremental #-}
2795+ {-# INLINABLE mergeIncrementalG #-}
2514− mergeIncremental = SpiderEvent . merge . (unsafeCoerce :: Dynamic x (PatchDMap k (R.Event (SpiderTimeline x))) -> Dynamic x (PatchDMap k (Event x))) . unSpiderIncremental
2796+ mergeIncrementalG nt = SpiderEvent #. mergeG (coerce #. nt) .# unSpiderIncremental
2515− {-# INLINABLE mergeIncrementalWithMove #-}
2797+ {-# INLINABLE mergeIncrementalWithMoveG #-}
2516− mergeIncrementalWithMove = SpiderEvent . mergeWithMove . (unsafeCoerce :: Dynamic x (PatchDMapWithMove k (R.Event (SpiderTimeline x))) -> Dynamic x (PatchDMapWithMove k (Event x))) . unSpiderIncremental
2798+ mergeIncrementalWithMoveG nt = SpiderEvent #. mergeWithMove (coerce #. nt) .# unSpiderIncremental
2517 {-# INLINABLE currentIncremental #-}
2799 {-# INLINABLE currentIncremental #-}
2518 currentIncremental = SpiderBehavior . dynamicCurrent . unSpiderIncremental
2800 currentIncremental = SpiderBehavior . dynamicCurrent . unSpiderIncremental
2519 {-# INLINABLE updatedIncremental #-}
2801 {-# INLINABLE updatedIncremental #-}
@@ -2524,9 +2806,10 @@ instance HasSpiderTimeline x => R.Reflex (SpiderTimeline x) where
2524 return $ Identity <$> apply p c --TODO: Avoid the redundant 'apply'
2806 return $ Identity <$> apply p c --TODO: Avoid the redundant 'apply'
2525 eventCoercion Coercion = Coercion
2807 eventCoercion Coercion = Coercion
2526 behaviorCoercion Coercion = Coercion
2808 behaviorCoercion Coercion = Coercion
2527− dynamicCoercion = unsafeCoerce --TODO: How can we avoid this unsafeCoerce? This is safe only because we know how Identity works as a Patch instance
2809+ dynamicCoercion Coercion = Coercion
2810+ incrementalCoercion Coercion Coercion = Coercion
2528 {-# INLINABLE mergeIntIncremental #-}
2811 {-# INLINABLE mergeIntIncremental #-}
2529− mergeIntIncremental = SpiderEvent . mergeInt . (unsafeCoerce :: Dynamic x (PatchIntMap (R.Event (SpiderTimeline x) a)) -> Dynamic x (PatchIntMap (Event x a))) . unSpiderIncremental
2812+ mergeIntIncremental = SpiderEvent . mergeInt . coerce
2530 {-# INLINABLE fanInt #-}
2813 {-# INLINABLE fanInt #-}
2531 fanInt e = R.EventSelectorInt $ SpiderEvent . selectInt (fanInt (unSpiderEvent e))
2814 fanInt e = R.EventSelectorInt $ SpiderEvent . selectInt (fanInt (unSpiderEvent e))
@@ -2551,7 +2834,7 @@ instance MonadAtomicRef (EventM x) where
2551 atomicModifyRef r f = liftIO $ atomicModifyRef r f
2834 atomicModifyRef r f = liftIO $ atomicModifyRef r f
2553-- | The monad for actions that manipulate a Spider timeline identified by @x@
2836-- | The monad for actions that manipulate a Spider timeline identified by @x@
2554−newtype SpiderHost x a = SpiderHost { unSpiderHost :: ReaderT (SpiderTimelineEnv x) IO a } deriving (Functor, Applicative, MonadFix, MonadIO, MonadException, MonadAsyncException)
2837+newtype SpiderHost (x :: Type) a = SpiderHost { unSpiderHost :: IO a } deriving (Functor, Applicative, MonadFix, MonadIO, MonadException, MonadAsyncException)
2556instance Monad (SpiderHost x) where
2839instance Monad (SpiderHost x) where
2557 {-# INLINABLE (>>=) #-}
2840 {-# INLINABLE (>>=) #-}
@@ -2560,20 +2843,27 @@ instance Monad (SpiderHost x) where
2560 SpiderHost x >> SpiderHost y = SpiderHost $ x >> y
2843 SpiderHost x >> SpiderHost y = SpiderHost $ x >> y
2561 {-# INLINABLE return #-}
2844 {-# INLINABLE return #-}
2562 return x = SpiderHost $ return x
2845 return x = SpiderHost $ return x
2846+#if !MIN_VERSION_base(4,13,0)
2847+ {-# INLINABLE fail #-}
2848+ fail = MonadFail.fail
2851+instance MonadFail (SpiderHost x) where
2563 {-# INLINABLE fail #-}
2852 {-# INLINABLE fail #-}
2564− fail s = SpiderHost $ fail s
2853+ fail s = SpiderHost $ MonadFail.fail s
2566-- | 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
2567-- a mutex for that timeline
2856-- a mutex for that timeline
2568runSpiderHost :: SpiderHost Global a -> IO a
2857runSpiderHost :: SpiderHost Global a -> IO a
2569−runSpiderHost (SpiderHost a) = runReaderT a globalSpiderTimelineEnv
2858+runSpiderHost (SpiderHost a) = a
2571-- | Run an action affecting a given Spider timeline; this will be guarded by a
2860-- | Run an action affecting a given Spider timeline; this will be guarded by a
2572-- mutex for that timeline
2861-- mutex for that timeline
2573runSpiderHostForTimeline :: SpiderHost x a -> SpiderTimelineEnv x -> IO a
2862runSpiderHostForTimeline :: SpiderHost x a -> SpiderTimelineEnv x -> IO a
2574−runSpiderHostForTimeline (SpiderHost a) = runReaderT a
2863+runSpiderHostForTimeline (SpiderHost a) _ = a
2865+newtype SpiderHostFrame (x :: Type) a = SpiderHostFrame { runSpiderHostFrame :: EventM x a }
2576−newtype SpiderHostFrame x a = SpiderHostFrame { runSpiderHostFrame :: EventM x a } deriving (Functor, Applicative, MonadFix, MonadIO, MonadException, MonadAsyncException)
2866+ deriving (Functor, Applicative, MonadFix, MonadIO, MonadException, MonadAsyncException)
2578instance Monad (SpiderHostFrame x) where
2868instance Monad (SpiderHostFrame x) where
2579 {-# INLINABLE (>>=) #-}
2869 {-# INLINABLE (>>=) #-}
@@ -2582,19 +2872,21 @@ instance Monad (SpiderHostFrame x) where
2582 SpiderHostFrame x >> SpiderHostFrame y = SpiderHostFrame $ x >> y
2872 SpiderHostFrame x >> SpiderHostFrame y = SpiderHostFrame $ x >> y
2583 {-# INLINABLE return #-}
2873 {-# INLINABLE return #-}
2584 return x = SpiderHostFrame $ return x
2874 return x = SpiderHostFrame $ return x
2875+#if !MIN_VERSION_base(4,13,0)
2585 {-# INLINABLE fail #-}
2876 {-# INLINABLE fail #-}
2586 fail s = SpiderHostFrame $ fail s
2877 fail s = SpiderHostFrame $ fail s
2588instance NotReady (SpiderTimeline x) (SpiderHostFrame x) where
2880instance NotReady (SpiderTimeline x) (SpiderHostFrame x) where
2589 notReadyUntil _ = pure ()
2881 notReadyUntil _ = pure ()
2590 notReady = pure ()
2882 notReady = pure ()
2592−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)
2593newEventWithTriggerIO f = do
2885newEventWithTriggerIO f = do
2594 es <- newFanEventWithTriggerIO $ \Refl -> f
2886 es <- newFanEventWithTriggerIO $ \Refl -> f
2595 return $ select es Refl
2887 return $ select es Refl
2597−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)
2598newFanEventWithTriggerIO f = do
2890newFanEventWithTriggerIO f = do
2599 occRef <- newIORef DMap.empty
2891 occRef <- newIORef DMap.empty
2600 subscribedRef <- newIORef DMap.empty
2892 subscribedRef <- newIORef DMap.empty
@@ -2628,3 +2920,11 @@ instance MonadAtomicRef (SpiderHostFrame x) where
2628instance PrimMonad (SpiderHostFrame x) where
2920instance PrimMonad (SpiderHostFrame x) where
2629 type PrimState (SpiderHostFrame x) = PrimState IO
2921 type PrimState (SpiderHostFrame x) = PrimState IO
2630 primitive = SpiderHostFrame . EventM . primitive
2922 primitive = SpiderHostFrame . EventM . primitive
2924+instance NotReady (SpiderTimeline x) (SpiderHost x) where
2925+ notReadyUntil _ = return ()
2926+ notReady = return ()
2928+instance HasSpiderTimeline x => NotReady (SpiderTimeline x) (PerformEventT (SpiderTimeline x) (SpiderHost x)) where
2929+ notReadyUntil _ = return ()
2930+ notReady = return ()