@@ -9,49 +9,40 @@
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 #-}
12{-# LANGUAGE RankNTypes #-}
15{-# LANGUAGE RankNTypes #-}
13{-# LANGUAGE RoleAnnotations #-}
16{-# LANGUAGE RoleAnnotations #-}
14{-# LANGUAGE ScopedTypeVariables #-}
17{-# LANGUAGE ScopedTypeVariables #-}
15{-# LANGUAGE TypeFamilies #-}
18{-# LANGUAGE TypeFamilies #-}
16{-# LANGUAGE TypeOperators #-}
19{-# LANGUAGE TypeOperators #-}
17{-# LANGUAGE UndecidableInstances #-}
20{-# LANGUAGE UndecidableInstances #-}
18−{-# LANGUAGE PolyKinds #-}
19−{-# LANGUAGE DeriveFunctor #-}
20−{-# LANGUAGE StandaloneDeriving #-}
21−{-# LANGUAGE InstanceSigs #-}
22−{-# LANGUAGE MultiWayIf #-}
24#ifdef USE_REFLEX_OPTIMIZER
21#ifdef USE_REFLEX_OPTIMIZER
25{-# OPTIONS_GHC -fplugin=Reflex.Optimizer #-}
22{-# OPTIONS_GHC -fplugin=Reflex.Optimizer #-}
24+#ifdef SPECIALIZE_TO_SPIDERTIMELINE_GLOBAL
27−{-# OPTIONS_GHC -Wunused-binds #-}
25+{-# OPTIONS_GHC -fno-warn-orphans #-}
28-- | This module is the implementation of the 'Spider' 'Reflex' engine. It uses
27-- | This module is the implementation of the 'Spider' 'Reflex' engine. It uses
29-- a graph traversal algorithm to propagate 'Event's and 'Behavior's.
28-- a graph traversal algorithm to propagate 'Event's and 'Behavior's.
30module Reflex.Spider.Internal (module Reflex.Spider.Internal) where
29module Reflex.Spider.Internal (module Reflex.Spider.Internal) where
32−#if MIN_VERSION_base(4,10,0)
33−import Control.Applicative (liftA2)
31+import Control.Applicative
35import Control.Concurrent
32import Control.Concurrent
36import Control.Exception
33import Control.Exception
37−import Control.Monad hiding (forM, forM_, mapM, mapM_)
34+import Control.Monad hiding (forM, forM_, mapM, mapM_, sequence)
38import Control.Monad.Exception
35import Control.Monad.Exception
39−import Control.Monad.Identity hiding (forM, forM_, mapM, mapM_)
36+import Control.Monad.Identity hiding (forM, forM_, mapM, mapM_, sequence)
40import Control.Monad.Primitive
37import Control.Monad.Primitive
41−import Control.Monad.Reader.Class
38+import Control.Monad.Reader hiding (forM, forM_, mapM, mapM_, sequence)
42−import Control.Monad.IO.Class
43−import Control.Monad.ReaderIO
44import Control.Monad.Ref
39import Control.Monad.Ref
45−import Control.Monad.Fail (MonadFail)
46−import qualified Control.Monad.Fail as MonadFail
47import Data.Align
40import Data.Align
48import Data.Coerce
41import Data.Coerce
49−import Data.Dependent.Map (DMap)
42+import Data.Dependent.Map (DMap, DSum (..))
50import qualified Data.Dependent.Map as DMap
43import 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
54import Data.Foldable hiding (concat, elem, sequence_)
44import Data.Foldable hiding (concat, elem, sequence_)
55import Data.Functor.Constant
46import Data.Functor.Constant
56import Data.Functor.Misc
47import Data.Functor.Misc
57import Data.Functor.Product
48import Data.Functor.Product
@@ -59,73 +50,62 @@ import Data.GADT.Compare
59import Data.IntMap.Strict (IntMap)
50import Data.IntMap.Strict (IntMap)
60import qualified Data.IntMap.Strict as IntMap
51import qualified Data.IntMap.Strict as IntMap
61import Data.IORef
52import Data.IORef
62−import Data.Kind (Type)
53+import Data.List hiding (foldl')
63−import Data.Maybe hiding (mapMaybe)
54+import Data.Maybe
64−import Data.Monoid (mempty, (<>))
55+import Data.Monoid ((<>))
65import Data.Proxy
56import Data.Proxy
66import Data.These
57import Data.These
67import Data.Traversable
58import Data.Traversable
68−import Data.Type.Equality ((:~:)(Refl))
59+import Data.Word
69−import Data.Witherable (Filterable, mapMaybe)
60+import Data.FastMutableIntMap (FastMutableIntMap, PatchIntMap (..))
70−import GHC.Exts hiding (toList)
61+import qualified Data.FastMutableIntMap as FastMutableIntMap
71import GHC.IORef (IORef (..))
63import GHC.IORef (IORef (..))
72import GHC.Stack
64import GHC.Stack
73import Reflex.FastWeak
65import Reflex.FastWeak
66+import Reflex.FunctorMaybe
74import System.IO.Unsafe
67import System.IO.Unsafe
75import System.Mem.Weak
68import System.Mem.Weak
76import Unsafe.Coerce
69import 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 (..))
87#ifdef DEBUG_CYCLES
71#ifdef DEBUG_CYCLES
88import Control.Monad.State hiding (forM, forM_, mapM, mapM_, sequence)
72import Control.Monad.State hiding (forM, forM_, mapM, mapM_, sequence)
91import Data.List.NonEmpty (NonEmpty (..), nonEmpty)
73import Data.List.NonEmpty (NonEmpty (..), nonEmpty)
92import qualified Data.List.NonEmpty as NonEmpty
74import qualified Data.List.NonEmpty as NonEmpty
75+import Data.Monoid (mempty)
93import Data.Tree (Forest, Tree (..), drawForest)
76import Data.Tree (Forest, Tree (..), drawForest)
94−import Data.List (isPrefixOf)
77+#endif
96−import Data.FastWeakBag (FastWeakBag, FastWeakBagTicket)
79+import Data.FastWeakBag (FastWeakBag)
97import qualified Data.FastWeakBag as FastWeakBag
80import qualified Data.FastWeakBag as FastWeakBag
99−import Data.Reflection
100−import Data.Some (Some(Some))
101−import Data.Type.Coercion
102−import Data.Profunctor.Unsafe ((#.), (.#))
103import Data.WeakBag (WeakBag, WeakBagTicket, _weakBag_children)
81import Data.WeakBag (WeakBag, WeakBagTicket, _weakBag_children)
104import qualified Data.WeakBag as WeakBag
82import qualified Data.WeakBag as WeakBag
83+#ifndef SPECIALIZE_TO_SPIDERTIMELINE_GLOBAL
84+import Data.Reflection
85+import Data.Some (Some)
86+import qualified Data.Some as Some
87+import Data.Type.Coercion
105import qualified Reflex.Class
88import qualified Reflex.Class
106import qualified Reflex.Class as R
89import qualified Reflex.Class as R
107import qualified Reflex.Host.Class
90import qualified Reflex.Host.Class
108−import Reflex.NotReady.Class
91+#endif
109−import Data.Patch
92+import Reflex.Patch
110−import qualified Data.Patch.DMapWithMove as PatchDMapWithMove
93+import qualified Reflex.Patch.DMapWithMove as PatchDMapWithMove
111−import Reflex.PerformEvent.Base (PerformEventT)
94+
95+-- Note: must come last to silence warnings due to AMP on GHC < 7.10
96+import Prelude hiding (any, concat, mapM, mapM_, sequence)
113#ifdef DEBUG_TRACE_EVENTS
98#ifdef DEBUG_TRACE_EVENTS
114−import qualified Data.ByteString.Char8 as BS8
115import System.IO (stderr)
99import System.IO (stderr)
116−import Data.List (isPrefixOf)
100+import qualified Data.ByteString.Char8 as BS8
119−-- TODO stdout might not be the best channel for debug output
120−debugStrLn :: String -> IO ()
121−debugStrLn = putStrLn
123#ifdef DEBUG_TRACE_EVENTS
103#ifdef DEBUG_TRACE_EVENTS
124withStackOneLine :: (BS8.ByteString -> a) -> a
105withStackOneLine :: (BS8.ByteString -> a) -> a
125withStackOneLine expr = unsafePerformIO $ do
106withStackOneLine expr = unsafePerformIO $ do
126 stack <- currentCallStack
107 stack <- currentCallStack
127− return (expr . BS8.pack . unwords . dropInternal . reverse $ stack)
108+ return (expr (BS8.pack (unwords (reverse stack))))
128− where dropInternal = filterStack "Reflex.Spider.Internal"
@@ -136,42 +116,28 @@ debugInvalidateHeight :: Bool
136debugInvalidate :: Bool
116debugInvalidate :: Bool
138#ifdef DEBUG
118#ifdef DEBUG
139#define DEBUG_NODEIDS
120#define DEBUG_NODEIDS
141−#ifdef DEBUG_TRACE_PROPAGATION
142debugPropagate = True
122debugPropagate = True
144−debugPropagate = False
147−#ifdef DEBUG_TRACE_HEIGHT
148−debugInvalidateHeight = True
150debugInvalidateHeight = False
124debugInvalidateHeight = False
153−#ifdef DEBUG_TRACE_INVALIDATION
154debugInvalidate = True
126debugInvalidate = True
156−debugInvalidate = False
159class HasNodeId a where
128class HasNodeId a where
160 getNodeId :: a -> Int
129 getNodeId :: a -> Int
162−instance HasNodeId (CacheSubscribed x a) where
131+instance HasNodeId (Hold x p a) where
163− getNodeId = _cacheSubscribed_nodeId
165−instance HasNodeId (FanInt x a) where
166− getNodeId = _fanInt_nodeId
168−instance HasNodeId (Hold x p) where
169 getNodeId = holdNodeId
132 getNodeId = holdNodeId
134+instance HasNodeId (PushSubscribed x a b) where
135+ getNodeId = pushSubscribedNodeId
171instance HasNodeId (SwitchSubscribed x a) where
137instance HasNodeId (SwitchSubscribed x a) where
172 getNodeId = switchSubscribedNodeId
138 getNodeId = switchSubscribedNodeId
174−instance HasNodeId (FanSubscribed x v a) where
140+instance HasNodeId (FanSubscribed x a) where
175 getNodeId = fanSubscribedNodeId
141 getNodeId = fanSubscribedNodeId
177instance HasNodeId (CoincidenceSubscribed x a) where
143instance HasNodeId (CoincidenceSubscribed x a) where
@@ -185,16 +151,41 @@ instance HasNodeId (Pull x a) where
186{-# INLINE showNodeId #-}
152{-# INLINE showNodeId #-}
187showNodeId :: HasNodeId a => a -> String
153showNodeId :: HasNodeId a => a -> String
188−showNodeId = showNodeId' . getNodeId
154+showNodeId = ("#"<>) . show . getNodeId
190−showNodeId' :: Int -> String
156+showSubscriberType :: Subscriber x a -> String
191−showNodeId' = ("#"<>) . show
157+showSubscriberType = \case
192−
158+ SubscriberPush _ _ -> "SubscriberPush"
159+ SubscriberMerge _ _ -> "SubscriberMerge"
160+ SubscriberFan _ -> "SubscriberFan"
161+ SubscriberMergeChange _ -> "SubscriberMergeChange"
162+ SubscriberHold _ -> "SubscriberHold"
163+ SubscriberHoldIdentity _ -> "SubscriberHoldIdentity"
164+ SubscriberSwitch _ -> "SubscriberSwitch"
165+ SubscriberCoincidenceOuter _ -> "SubscriberCoincidenceOuter"
166+ SubscriberCoincidenceInner _ -> "SubscriberCoincidenceInner"
167+ SubscriberHandle -> "SubscriberHandle"
169+showEventType :: Event x a -> String
170+showEventType = \case
171+ EventRoot _ _ -> "EventRoot"
172+ EventNever -> "EventNever"
173+ EventPush _ -> "EventPush"
174+ EventMerge _ -> "EventMerge"
175+ EventFan _ _ -> "EventFan"
176+ EventSwitch _ -> "EventSwitch"
177+ EventCoincidence _ -> "EventCoincidence"
178+ EventHold _ -> "EventHold"
179+ EventDyn _ -> "EventDyn"
180+ EventHoldIdentity _ -> "EventHoldIdentity"
181+ EventDynIdentity _ -> "EventDynIdentity"
196debugPropagate = False
185debugPropagate = False
197debugInvalidateHeight = False
187debugInvalidateHeight = False
198debugInvalidate = False
189debugInvalidate = False
200-- This must be inline, or error messages will cause memory leaks due to retaining the node in question
191-- This must be inline, or error messages will cause memory leaks due to retaining the node in question
@@ -202,10 +193,6 @@ debugInvalidate = False
202showNodeId :: a -> String
193showNodeId :: a -> String
203showNodeId _ = ""
194showNodeId _ = ""
205−{-# INLINE showNodeId' #-}
206−showNodeId' :: Int -> String
211#ifdef DEBUG_NODEIDS
198#ifdef DEBUG_NODEIDS
@@ -215,6 +202,12 @@ nextNodeIdRef = unsafePerformIO $ newIORef 1
216newNodeId :: IO Int
203newNodeId :: IO Int
217newNodeId = atomicModifyIORef' nextNodeIdRef $ \n -> (succ n, n)
204newNodeId = atomicModifyIORef' nextNodeIdRef $ \n -> (succ n, n)
206+{-# NOINLINE unsafeNodeId #-}
207+unsafeNodeId :: a -> Int
208+unsafeNodeId a = unsafePerformIO $ do
220--------------------------------------------------------------------------------
213--------------------------------------------------------------------------------
@@ -253,7 +246,7 @@ subscribeAndRead = unEvent
253{-# INLINE [1] pushCheap #-}
246{-# INLINE [1] pushCheap #-}
254pushCheap :: HasSpiderTimeline x => (a -> ComputeM x (Maybe b)) -> Event x a -> Event x b
247pushCheap :: HasSpiderTimeline x => (a -> ComputeM x (Maybe b)) -> Event x a -> Event x b
255pushCheap !f e = Event $ \sub -> do
248pushCheap !f e = Event $ \sub -> do
256− (subscription, occ) <- subscribeAndRead e $ debugSubscriber' "push" $ sub
249+ (subscription, occ) <- subscribeAndRead e $ sub
257 { subscriberPropagate = \a -> do
250 { subscriberPropagate = \a -> do
258 mb <- f a
251 mb <- f a
259 mapM_ (subscriberPropagate sub) mb
252 mapM_ (subscriberPropagate sub) mb
@@ -272,10 +265,10 @@ terminalSubscriber p = Subscriber
273-- | Subscribe to an Event only for the duration of one occurrence
266-- | Subscribe to an Event only for the duration of one occurrence
274{-# INLINE subscribeAndReadHead #-}
267{-# INLINE subscribeAndReadHead #-}
275−subscribeAndReadHead :: HasSpiderTimeline x => Event x a -> Subscriber x a -> EventM x (EventSubscription x, Maybe a)
268+subscribeAndReadHead :: Event x a -> Subscriber x a -> EventM x (EventSubscription x, Maybe a)
276subscribeAndReadHead e sub = do
269subscribeAndReadHead e sub = do
277 subscriptionRef <- liftIO $ newIORef $ error "subscribeAndReadHead: not initialized"
270 subscriptionRef <- liftIO $ newIORef $ error "subscribeAndReadHead: not initialized"
278− (subscription, occ) <- subscribeAndRead e $ debugSubscriber' "head" $ sub
271+ (subscription, occ) <- subscribeAndRead e $ sub
279 { subscriberPropagate = \a -> do
272 { subscriberPropagate = \a -> do
280 liftIO $ unsubscribe =<< readIORef subscriptionRef
273 liftIO $ unsubscribe =<< readIORef subscriptionRef
281 subscriberPropagate sub a
274 subscriberPropagate sub a
@@ -286,42 +279,24 @@ subscribeAndReadHead e sub = do
286 return (subscription, occ)
279 return (subscription, occ)
288--TODO: Make this lazy in its input event
281--TODO: Make this lazy in its input event
289−headE :: (MonadIO m, Defer (SomeMergeInit x) m, HasSpiderTimeline x) => Event x a -> m (Event x a)
282+headE :: (MonadIO m, Defer (SomeMergeInit x) m) => Event x a -> m (Event x a)
290headE originalE = do
283headE originalE = do
291 parent <- liftIO $ newIORef $ Just originalE
284 parent <- liftIO $ newIORef $ Just originalE
292 defer $ SomeMergeInit $ do --TODO: Rename SomeMergeInit appropriately
285 defer $ SomeMergeInit $ do --TODO: Rename SomeMergeInit appropriately
293 let clearParent = liftIO $ writeIORef parent Nothing
286 let clearParent = liftIO $ writeIORef parent Nothing
294− (_, occ) <- subscribeAndReadHead originalE $ terminalSubscriber $ const clearParent
287+ (_, occ) <- subscribeAndReadHead originalE $ terminalSubscriber $ \_ -> clearParent
295 when (isJust occ) clearParent
288 when (isJust occ) clearParent
296− return $ Event $ \sub ->
289+ return $ Event $ \sub -> do
297 liftIO (readIORef parent) >>= \case
290 liftIO (readIORef parent) >>= \case
298− Nothing -> subscribeAndReadNever
291+ Nothing -> return (EventSubscription (return ()) $ EventSubscribed zeroRef $ toAny (), Nothing)
299 Just e -> subscribeAndReadHead e sub
292 Just e -> subscribeAndReadHead e sub
301data CacheSubscribed x a
294data CacheSubscribed x a
302 = CacheSubscribed { _cacheSubscribed_subscribers :: {-# UNPACK #-} !(FastWeakBag (Subscriber x a))
295 = CacheSubscribed { _cacheSubscribed_subscribers :: {-# UNPACK #-} !(FastWeakBag (Subscriber x a))
303 , _cacheSubscribed_parent :: {-# UNPACK #-} !(EventSubscription x)
296 , _cacheSubscribed_parent :: {-# UNPACK #-} !(EventSubscription x)
304 , _cacheSubscribed_occurrence :: {-# UNPACK #-} !(IORef (Maybe a))
297 , _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
325-- | Construct an 'Event' whose value is guaranteed not to be recomputed
300-- | Construct an 'Event' whose value is guaranteed not to be recomputed
326-- repeatedly
301-- repeatedly
@@ -336,33 +311,27 @@ cacheEvent e =
339− unsafePerformIO $ do
340− mSubscribedRef :: IORef (FastWeak (CacheSubscribed x a))
314+ let mSubscribedRef :: IORef (FastWeak (CacheSubscribed x a))
341− <- newIORef emptyFastWeak
315+ !mSubscribedRef = unsafeNewIORef e emptyFastWeak
342− pure $ \sub -> {-# SCC "cacheEvent" #-} do
316+ in \sub -> {-# SCC "cacheEvent" #-} do
343#ifdef DEBUG_TRACE_EVENTS
317#ifdef DEBUG_TRACE_EVENTS
344 unless (BS8.null callSite) $ liftIO $ BS8.hPutStrLn stderr callSite
318 unless (BS8.null callSite) $ liftIO $ BS8.hPutStrLn stderr callSite
346 subscribedTicket <- liftIO (readIORef mSubscribedRef >>= getFastWeakTicket) >>= \case
320 subscribedTicket <- liftIO (readIORef mSubscribedRef >>= getFastWeakTicket) >>= \case
347 Just subscribedTicket -> return subscribedTicket
321 Just subscribedTicket -> return subscribedTicket
348 Nothing -> do
322 Nothing -> do
350− nodeId <- liftIO newNodeId
352 subscribers <- liftIO FastWeakBag.empty
323 subscribers <- liftIO FastWeakBag.empty
353 occRef <- liftIO $ newIORef Nothing -- This should never be read prior to being set below
324 occRef <- liftIO $ newIORef Nothing -- This should never be read prior to being set below
355− (parentSub, occ) <- subscribeAndRead e $ debugSubscriber' ("cacheEvent" <> showNodeId' nodeId) $ Subscriber
357 (parentSub, occ) <- subscribeAndRead e $ Subscriber
325 (parentSub, occ) <- subscribeAndRead e $ Subscriber
359− { subscriberPropagate = \a -> do
326+ { subscriberPropagate = \a -> do
360− liftIO $ writeIORef occRef (Just a)
327+ liftIO $ writeIORef occRef $ Just a
361− scheduleClear occRef
328+ scheduleClear occRef
362− propagateFast a subscribers
329+ propagateFast a subscribers
330+ , subscriberInvalidateHeight = \old -> do
363− , subscriberInvalidateHeight = FastWeakBag.traverse_ subscribers . invalidateSubscriberHeight
331+ FastWeakBag.traverse subscribers $ invalidateSubscriberHeight old
332+ , subscriberRecalculateHeight = \new -> do
364− , subscriberRecalculateHeight = FastWeakBag.traverse_ subscribers . recalculateSubscriberHeight
333+ FastWeakBag.traverse subscribers $ recalculateSubscriberHeight new
366 when (isJust occ) $ do
335 when (isJust occ) $ do
367 liftIO $ writeIORef occRef occ -- Set the initial value of occRef; we don't need to do this if occ is Nothing
336 liftIO $ writeIORef occRef occ -- Set the initial value of occRef; we don't need to do this if occ is Nothing
368 scheduleClear occRef
337 scheduleClear occRef
@@ -370,45 +339,29 @@ cacheEvent e =
370 { _cacheSubscribed_subscribers = subscribers
339 { _cacheSubscribed_subscribers = subscribers
371 , _cacheSubscribed_parent = parentSub
340 , _cacheSubscribed_parent = parentSub
372 , _cacheSubscribed_occurrence = occRef
341 , _cacheSubscribed_occurrence = occRef
374− , _cacheSubscribed_nodeId = nodeId
377 subscribedTicket <- liftIO $ mkFastWeakTicket subscribed
343 subscribedTicket <- liftIO $ mkFastWeakTicket subscribed
378 liftIO $ writeIORef mSubscribedRef =<< getFastWeakTicketWeak subscribedTicket
344 liftIO $ writeIORef mSubscribedRef =<< getFastWeakTicketWeak subscribedTicket
379 return subscribedTicket
345 return subscribedTicket
380− liftIO $ cacheSubscription sub mSubscribedRef subscribedTicket
346+ liftIO $ do
382−cacheSubscription :: Subscriber x a -> IORef (FastWeak (CacheSubscribed x a))
383− -> FastWeakTicket (CacheSubscribed x a) -> IO (EventSubscription x, Maybe a)
384−cacheSubscription sub mSubscribedRef subscribedTicket = do
385− subscribed <- getFastWeakTicketValue subscribedTicket
347+ subscribed <- getFastWeakTicketValue subscribedTicket
386− ticket <- FastWeakBag.insert sub $ _cacheSubscribed_subscribers subscribed
348+ ticket <- FastWeakBag.insert sub $ _cacheSubscribed_subscribers subscribed
387− occ <- readIORef $ _cacheSubscribed_occurrence subscribed
349+ occ <- readIORef $ _cacheSubscribed_occurrence subscribed
389− let parentSub = _cacheSubscribed_parent subscribed
390− es = EventSubscription
350+ let es = EventSubscription
391− { _eventSubscription_unsubscribe = do
351+ { _eventSubscription_unsubscribe = do
392− FastWeakBag.remove ticket
352+ FastWeakBag.remove ticket
394− isEmpty <- FastWeakBag.isEmpty $ _cacheSubscribed_subscribers subscribed
353+ isEmpty <- FastWeakBag.isEmpty $ _cacheSubscribed_subscribers subscribed
395− when isEmpty $ do
354+ when isEmpty $ do
396− writeIORef mSubscribedRef emptyFastWeak
355+ writeIORef mSubscribedRef emptyFastWeak
397− unsubscribe parentSub
356+ unsubscribe $ _cacheSubscribed_parent subscribed
398− touch ticket
357+ touch ticket
399− touch subscribedTicket
358+ touch subscribedTicket
400− , _eventSubscription_subscribed = EventSubscribed
359+ , _eventSubscription_subscribed = EventSubscribed
401− { eventSubscribedHeightRef = eventSubscribedHeightRef $ _eventSubscription_subscribed parentSub
360+ { eventSubscribedHeightRef = eventSubscribedHeightRef $ _eventSubscription_subscribed $ _cacheSubscribed_parent subscribed
402− , eventSubscribedRetained = toAny subscribedTicket
361+ , eventSubscribedRetained = toAny subscribedTicket
404− , eventSubscribedGetParents = return [_eventSubscription_subscribed parentSub]
405− , eventSubscribedHasOwnHeightRef = False
406− , eventSubscribedWhoCreated = whoCreatedIORef mSubscribedRef
410− return (es, occ)
364+ return (es, occ)
413subscribe :: Event x a -> Subscriber x a -> EventM x (EventSubscription x)
366subscribe :: Event x a -> Subscriber x a -> EventM x (EventSubscription x)
414subscribe e s = fst <$> subscribeAndRead e s
367subscribe e s = fst <$> subscribeAndRead e s
@@ -420,16 +373,13 @@ wrap tag getSpecificSubscribed sub = do
420 let es = tag subd
373 let es = tag subd
421 return (EventSubscription (WeakBag.remove sln >> touch sln) es, occ)
374 return (EventSubscription (WeakBag.remove sln >> touch sln) es, occ)
423−eventRoot :: (GCompare k, HasSpiderTimeline x) => k a -> Root x k -> Event x a
376+eventRoot :: GCompare k => k a -> Root x k -> Event x a
424eventRoot !k !r = Event $ wrap eventSubscribedRoot $ liftIO . getRootSubscribed k r
377eventRoot !k !r = Event $ wrap eventSubscribedRoot $ liftIO . getRootSubscribed k r
426−subscribeAndReadNever :: EventM x (EventSubscription x, Maybe a)
427−subscribeAndReadNever = return (EventSubscription (return ()) eventSubscribedNever, Nothing)
429eventNever :: Event x a
379eventNever :: Event x a
430−eventNever = Event $ const subscribeAndReadNever
380+eventNever = Event $ \_ -> return (EventSubscription (return ()) eventSubscribedNever, Nothing)
432−eventFan :: (GCompare k, HasSpiderTimeline x) => k a -> Fan x k v -> Event x (v a)
382+eventFan :: (GCompare k, HasSpiderTimeline x) => k a -> Fan x k -> Event x a
433eventFan !k !f = Event $ wrap eventSubscribedFan $ getFanSubscribed k f
383eventFan !k !f = Event $ wrap eventSubscribedFan $ getFanSubscribed k f
435eventSwitch :: HasSpiderTimeline x => Switch x a -> Event x a
385eventSwitch :: HasSpiderTimeline x => Switch x a -> Event x a
@@ -438,7 +388,7 @@ eventSwitch !s = Event $ wrap eventSubscribedSwitch $ getSwitchSubscribed s
438eventCoincidence :: HasSpiderTimeline x => Coincidence x a -> Event x a
388eventCoincidence :: HasSpiderTimeline x => Coincidence x a -> Event x a
439eventCoincidence !c = Event $ wrap eventSubscribedCoincidence $ getCoincidenceSubscribed c
389eventCoincidence !c = Event $ wrap eventSubscribedCoincidence $ getCoincidenceSubscribed c
441−eventHold :: Hold x p -> Event x p
391+eventHold :: HasSpiderTimeline x => Hold x p -> Event x p
442eventHold !h = Event $ subscribeHoldEvent h
392eventHold !h = Event $ subscribeHoldEvent h
444eventDyn :: (HasSpiderTimeline x, Patch p) => Dyn x p -> Event x p
394eventDyn :: (HasSpiderTimeline x, Patch p) => Dyn x p -> Event x p
@@ -464,6 +414,16 @@ data Subscriber x a = Subscriber
464 , subscriberRecalculateHeight :: !(Height -> IO ())
414 , subscriberRecalculateHeight :: !(Height -> IO ())
417+--TODO: Move this comment to WeakBag
418+-- These function are constructor functions that are marked NOINLINE so they are
419+-- opaque to GHC. If we do not do this, then GHC will sometimes fuse the constructor away
420+-- so any weak references that are attached to the constructors will have their
421+-- finalizer run. Using the opaque constructor, does not see the
422+-- constructor application, so it behaves like an IORef and cannot be fused away.
424+-- The result is also evaluated to WHNF, since forcing a thunk invalidates
425+-- the weak pointer to it in some cases.
467newSubscriberHold :: (HasSpiderTimeline x, Patch p) => Hold x p -> IO (Subscriber x p)
427newSubscriberHold :: (HasSpiderTimeline x, Patch p) => Hold x p -> IO (Subscriber x p)
468newSubscriberHold h = return $ Subscriber
428newSubscriberHold h = return $ Subscriber
469 { subscriberPropagate = {-# SCC "traverseHold" #-} propagateSubscriberHold h
429 { subscriberPropagate = {-# SCC "traverseHold" #-} propagateSubscriberHold h
@@ -471,68 +431,85 @@ newSubscriberHold h = return $ Subscriber
471 , subscriberRecalculateHeight = \_ -> return ()
431 , subscriberRecalculateHeight = \_ -> return ()
474−newSubscriberFan :: forall x k v. (HasSpiderTimeline x, GCompare k) => FanSubscribed x k v -> IO (Subscriber x (DMap k v))
434+newSubscriberFan :: forall x k. (HasSpiderTimeline x, GCompare k) => FanSubscribed x k -> IO (Subscriber x (DMap k Identity))
475−newSubscriberFan subscribed = debugSubscriber ("SubscriberFan " <> showNodeId subscribed) $ Subscriber
435+newSubscriberFan subscribed = return $ Subscriber
476 { subscriberPropagate = \a -> {-# SCC "traverseFan" #-} do
436 { subscriberPropagate = \a -> {-# SCC "traverseFan" #-} do
477 subs <- liftIO $ readIORef $ fanSubscribedSubscribers subscribed
437 subs <- liftIO $ readIORef $ fanSubscribedSubscribers subscribed
478− tracePropagate (Proxy :: Proxy x) $ show (DMap.size subs) <> " keys subscribed, " <> show (DMap.size a) <> " keys firing"
438+ tracePropagate (Proxy :: Proxy x) $ "SubscriberFan" <> showNodeId subscribed <> ": " ++ show (DMap.size subs) ++ " keys subscribed, " ++ show (DMap.size a) ++ " keys firing"
479 liftIO $ writeIORef (fanSubscribedOccurrence subscribed) $ Just a
439 liftIO $ writeIORef (fanSubscribedOccurrence subscribed) $ Just a
480 scheduleClear $ fanSubscribedOccurrence subscribed
440 scheduleClear $ fanSubscribedOccurrence subscribed
481− let f _ (Pair v subsubs) = do
441+ let f _ (Pair (Identity v) subsubs) = do
482 propagate v $ _fanSubscribedChildren_list subsubs
442 propagate v $ _fanSubscribedChildren_list subsubs
483 return $ Constant ()
443 return $ Constant ()
484 _ <- DMap.traverseWithKey f $ DMap.intersectionWithKey (\_ -> Pair) a subs --TODO: Would be nice to have DMap.traverse_
444 _ <- DMap.traverseWithKey f $ DMap.intersectionWithKey (\_ -> Pair) a subs --TODO: Would be nice to have DMap.traverse_
485 return ()
445 return ()
486 , subscriberInvalidateHeight = \old -> do
446 , subscriberInvalidateHeight = \old -> do
447+ when debugInvalidateHeight $ putStrLn $ "invalidateSubscriberHeight: SubscriberFan" <> showNodeId subscribed
487 subscribers <- readIORef $ fanSubscribedSubscribers subscribed
448 subscribers <- readIORef $ fanSubscribedSubscribers subscribed
488− forM_ (DMap.toList subscribers) $ \(_ :=> v) -> WeakBag.traverse_ (_fanSubscribedChildren_list v) $ invalidateSubscriberHeight old
449+ forM_ (DMap.toList subscribers) $ \(_ :=> v) -> WeakBag.traverse (_fanSubscribedChildren_list v) $ invalidateSubscriberHeight old
450+ when debugInvalidateHeight $ putStrLn $ "invalidateSubscriberHeight: SubscriberFan" <> showNodeId subscribed <> " done"
489 , subscriberRecalculateHeight = \new -> do
451 , subscriberRecalculateHeight = \new -> do
452+ when debugInvalidateHeight $ putStrLn $ "recalculateSubscriberHeight: SubscriberFan" <> showNodeId subscribed
490 subscribers <- readIORef $ fanSubscribedSubscribers subscribed
453 subscribers <- readIORef $ fanSubscribedSubscribers subscribed
491− forM_ (DMap.toList subscribers) $ \(_ :=> v) -> WeakBag.traverse_ (_fanSubscribedChildren_list v) $ recalculateSubscriberHeight new
454+ forM_ (DMap.toList subscribers) $ \(_ :=> v) -> WeakBag.traverse (_fanSubscribedChildren_list v) $ recalculateSubscriberHeight new
455+ when debugInvalidateHeight $ putStrLn $ "recalculateSubscriberHeight: SubscriberFan" <> showNodeId subscribed <> " done"
494newSubscriberSwitch :: forall x a. HasSpiderTimeline x => SwitchSubscribed x a -> IO (Subscriber x a)
458newSubscriberSwitch :: forall x a. HasSpiderTimeline x => SwitchSubscribed x a -> IO (Subscriber x a)
495−newSubscriberSwitch subscribed = debugSubscriber ("SubscriberCoincidenceOuter" <> showNodeId subscribed) $ Subscriber
459+newSubscriberSwitch subscribed = return $ Subscriber
496 { subscriberPropagate = \a -> {-# SCC "traverseSwitch" #-} do
460 { subscriberPropagate = \a -> {-# SCC "traverseSwitch" #-} do
461+ tracePropagate (Proxy :: Proxy x) $ "SubscriberSwitch" <> showNodeId subscribed
497 liftIO $ writeIORef (switchSubscribedOccurrence subscribed) $ Just a
462 liftIO $ writeIORef (switchSubscribedOccurrence subscribed) $ Just a
498 scheduleClear $ switchSubscribedOccurrence subscribed
463 scheduleClear $ switchSubscribedOccurrence subscribed
499 propagate a $ switchSubscribedSubscribers subscribed
464 propagate a $ switchSubscribedSubscribers subscribed
500 , subscriberInvalidateHeight = \_ -> do
465 , subscriberInvalidateHeight = \_ -> do
466+ when debugInvalidateHeight $ putStrLn $ "invalidateSubscriberHeight: SubscriberSwitch" <> showNodeId subscribed
501 oldHeight <- readIORef $ switchSubscribedHeight subscribed
467 oldHeight <- readIORef $ switchSubscribedHeight subscribed
502 when (oldHeight /= invalidHeight) $ do
468 when (oldHeight /= invalidHeight) $ do
503 writeIORef (switchSubscribedHeight subscribed) $! invalidHeight
469 writeIORef (switchSubscribedHeight subscribed) $! invalidHeight
504− WeakBag.traverse_ (switchSubscribedSubscribers subscribed) $ invalidateSubscriberHeight oldHeight
470+ WeakBag.traverse (switchSubscribedSubscribers subscribed) $ invalidateSubscriberHeight oldHeight
471+ when debugInvalidateHeight $ putStrLn $ "invalidateSubscriberHeight: SubscriberSwitch" <> showNodeId subscribed <> " done"
472+ , subscriberRecalculateHeight = \new -> do
473+ when debugInvalidateHeight $ putStrLn $ "recalculateSubscriberHeight: SubscriberSwitch" <> showNodeId subscribed
505− , subscriberRecalculateHeight = (`updateSwitchHeight` subscribed)
474+ updateSwitchHeight new subscribed
475+ when debugInvalidateHeight $ putStrLn $ "recalculateSubscriberHeight: SubscriberSwitch" <> showNodeId subscribed <> " done"
508newSubscriberCoincidenceOuter :: forall x b. HasSpiderTimeline x => CoincidenceSubscribed x b -> IO (Subscriber x (Event x b))
478newSubscriberCoincidenceOuter :: forall x b. HasSpiderTimeline x => CoincidenceSubscribed x b -> IO (Subscriber x (Event x b))
509−newSubscriberCoincidenceOuter subscribed = debugSubscriber ("SubscriberCoincidenceOuter" <> showNodeId subscribed) $ Subscriber
479+newSubscriberCoincidenceOuter subscribed = return $ Subscriber
510 { subscriberPropagate = \a -> {-# SCC "traverseCoincidenceOuter" #-} do
480 { subscriberPropagate = \a -> {-# SCC "traverseCoincidenceOuter" #-} do
481+ tracePropagate (Proxy :: Proxy x) $ "SubscriberCoincidenceOuter" <> showNodeId subscribed
511 outerHeight <- liftIO $ readIORef $ coincidenceSubscribedHeight subscribed
482 outerHeight <- liftIO $ readIORef $ coincidenceSubscribedHeight subscribed
512 tracePropagate (Proxy :: Proxy x) $ " outerHeight = " <> show outerHeight
483 tracePropagate (Proxy :: Proxy x) $ " outerHeight = " <> show outerHeight
513 (occ, innerHeight, innerSubd) <- subscribeCoincidenceInner a outerHeight subscribed
484 (occ, innerHeight, innerSubd) <- subscribeCoincidenceInner a outerHeight subscribed
514 tracePropagate (Proxy :: Proxy x) $ " isJust occ = " <> show (isJust occ)
485 tracePropagate (Proxy :: Proxy x) $ " isJust occ = " <> show (isJust occ)
515 tracePropagate (Proxy :: Proxy x) $ " innerHeight = " <> show innerHeight
486 tracePropagate (Proxy :: Proxy x) $ " innerHeight = " <> show innerHeight
517 liftIO $ writeIORef (coincidenceSubscribedInnerParent subscribed) $ Just innerSubd
487 liftIO $ writeIORef (coincidenceSubscribedInnerParent subscribed) $ Just innerSubd
518 scheduleClear $ coincidenceSubscribedInnerParent subscribed
488 scheduleClear $ coincidenceSubscribedInnerParent subscribed
519 case occ of
489 case occ of
520− Nothing ->
490+ Nothing -> do
521 when (innerHeight > outerHeight) $ liftIO $ do -- If the event fires, it will fire at a later height
491 when (innerHeight > outerHeight) $ liftIO $ do -- If the event fires, it will fire at a later height
522 writeIORef (coincidenceSubscribedHeight subscribed) $! innerHeight
492 writeIORef (coincidenceSubscribedHeight subscribed) $! innerHeight
523− WeakBag.traverse_ (coincidenceSubscribedSubscribers subscribed) $ invalidateSubscriberHeight outerHeight
493+ WeakBag.traverse (coincidenceSubscribedSubscribers subscribed) $ invalidateSubscriberHeight outerHeight
524− WeakBag.traverse_ (coincidenceSubscribedSubscribers subscribed) $ recalculateSubscriberHeight innerHeight
494+ WeakBag.traverse (coincidenceSubscribedSubscribers subscribed) $ recalculateSubscriberHeight innerHeight
525 Just o -> do -- Since it's already firing, no need to adjust height
495 Just o -> do -- Since it's already firing, no need to adjust height
526 liftIO $ writeIORef (coincidenceSubscribedOccurrence subscribed) occ
496 liftIO $ writeIORef (coincidenceSubscribedOccurrence subscribed) occ
527 scheduleClear $ coincidenceSubscribedOccurrence subscribed
497 scheduleClear $ coincidenceSubscribedOccurrence subscribed
528 propagate o $ coincidenceSubscribedSubscribers subscribed
498 propagate o $ coincidenceSubscribedSubscribers subscribed
499+ , subscriberInvalidateHeight = \_ -> do
500+ when debugInvalidateHeight $ putStrLn $ "invalidateSubscriberHeight: SubscriberCoincidenceOuter" <> showNodeId subscribed
529− , subscriberInvalidateHeight = \_ -> invalidateCoincidenceHeight subscribed
501+ invalidateCoincidenceHeight subscribed
502+ when debugInvalidateHeight $ putStrLn $ "invalidateSubscriberHeight: SubscriberCoincidenceOuter" <> showNodeId subscribed <> " done"
503+ , subscriberRecalculateHeight = \_ -> do
504+ when debugInvalidateHeight $ putStrLn $ "recalculateSubscriberHeight: SubscriberCoincidenceOuter" <> showNodeId subscribed
530− , subscriberRecalculateHeight = \_ -> recalculateCoincidenceHeight subscribed
505+ recalculateCoincidenceHeight subscribed
506+ when debugInvalidateHeight $ putStrLn $ "recalculateSubscriberHeight: SubscriberCoincidenceOuter" <> showNodeId subscribed <> " done"
533newSubscriberCoincidenceInner :: forall x a. HasSpiderTimeline x => CoincidenceSubscribed x a -> IO (Subscriber x a)
509newSubscriberCoincidenceInner :: forall x a. HasSpiderTimeline x => CoincidenceSubscribed x a -> IO (Subscriber x a)
534−newSubscriberCoincidenceInner subscribed = debugSubscriber ("SubscriberCoincidenceInner" <> showNodeId subscribed) $ Subscriber
510+newSubscriberCoincidenceInner subscribed = return $ Subscriber
535 { subscriberPropagate = \a -> {-# SCC "traverseCoincidenceInner" #-} do
511 { subscriberPropagate = \a -> {-# SCC "traverseCoincidenceInner" #-} do
512+ tracePropagate (Proxy :: Proxy x) $ "SubscriberCoincidenceInner" <> showNodeId subscribed
536 occ <- liftIO $ readIORef $ coincidenceSubscribedOccurrence subscribed
513 occ <- liftIO $ readIORef $ coincidenceSubscribedOccurrence subscribed
537 case occ of
514 case occ of
538 Just _ -> return () -- SubscriberCoincidenceOuter must have already propagated this event
515 Just _ -> return () -- SubscriberCoincidenceOuter must have already propagated this event
@@ -540,8 +517,14 @@ newSubscriberCoincidenceInner subscribed = debugSubscriber ("SubscriberCoinciden
540 liftIO $ writeIORef (coincidenceSubscribedOccurrence subscribed) $ Just a
517 liftIO $ writeIORef (coincidenceSubscribedOccurrence subscribed) $ Just a
541 scheduleClear $ coincidenceSubscribedOccurrence subscribed
518 scheduleClear $ coincidenceSubscribedOccurrence subscribed
542 propagate a $ coincidenceSubscribedSubscribers subscribed
519 propagate a $ coincidenceSubscribedSubscribers subscribed
520+ , subscriberInvalidateHeight = \_ -> do
521+ when debugInvalidateHeight $ putStrLn $ "invalidateSubscriberHeight: SubscriberCoincidenceInner" <> showNodeId subscribed
543− , subscriberInvalidateHeight = \_ -> invalidateCoincidenceHeight subscribed
522+ invalidateCoincidenceHeight subscribed
523+ when debugInvalidateHeight $ putStrLn $ "invalidateSubscriberHeight: SubscriberCoincidenceInner" <> showNodeId subscribed <> " done"
524+ , subscriberRecalculateHeight = \_ -> do
525+ when debugInvalidateHeight $ putStrLn $ "recalculateSubscriberHeight: SubscriberCoincidenceInner" <> showNodeId subscribed
544− , subscriberRecalculateHeight = \_ -> recalculateCoincidenceHeight subscribed
526+ recalculateCoincidenceHeight subscribed
527+ when debugInvalidateHeight $ putStrLn $ "recalculateSubscriberHeight: SubscriberCoincidenceInner" <> showNodeId subscribed <> " done"
547invalidateSubscriberHeight :: Height -> Subscriber x a -> IO ()
530invalidateSubscriberHeight :: Height -> Subscriber x a -> IO ()
@@ -551,18 +534,18 @@ recalculateSubscriberHeight :: Height -> Subscriber x a -> IO ()
551recalculateSubscriberHeight = flip subscriberRecalculateHeight
534recalculateSubscriberHeight = flip subscriberRecalculateHeight
553-- | Propagate everything at the current height
536-- | Propagate everything at the current height
554−propagate :: forall x a. HasSpiderTimeline x => a -> WeakBag (Subscriber x a) -> EventM x ()
537+propagate :: a -> WeakBag (Subscriber x a) -> EventM x ()
555−propagate a subscribers = withIncreasedDepth (Proxy::Proxy x) $
538+propagate a subscribers = withIncreasedDepth $ do
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
539 -- Note: in the following traversal, we do not visit nodes that are added to the list during our traversal; they are new events, which will necessarily have full information already, so there is no need to traverse them
557 --TODO: Should we check if nodes already have their values before propagating? Maybe we're re-doing work
540 --TODO: Should we check if nodes already have their values before propagating? Maybe we're re-doing work
558− WeakBag.traverse_ subscribers $ \s -> subscriberPropagate s a
541+ WeakBag.traverse subscribers $ \s -> subscriberPropagate s a
560-- | Propagate everything at the current height
543-- | Propagate everything at the current height
561−propagateFast :: forall x a. HasSpiderTimeline x => a -> FastWeakBag (Subscriber x a) -> EventM x ()
544+propagateFast :: a -> FastWeakBag (Subscriber x a) -> EventM x ()
562−propagateFast a subscribers = withIncreasedDepth (Proxy::Proxy x) $
545+propagateFast a subscribers = withIncreasedDepth $ do
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
546 -- Note: in the following traversal, we do not visit nodes that are added to the list during our traversal; they are new events, which will necessarily have full information already, so there is no need to traverse them
564 --TODO: Should we check if nodes already have their values before propagating? Maybe we're re-doing work
547 --TODO: Should we check if nodes already have their values before propagating? Maybe we're re-doing work
565− FastWeakBag.traverse_ subscribers $ \s -> subscriberPropagate s a
548+ FastWeakBag.traverse subscribers $ \s -> subscriberPropagate s a
567--------------------------------------------------------------------------------
550--------------------------------------------------------------------------------
568-- EventSubscribed
551-- EventSubscribed
@@ -571,16 +554,11 @@ propagateFast a subscribers = withIncreasedDepth (Proxy::Proxy x) $
571toAny :: a -> Any
554toAny :: a -> Any
572toAny = unsafeCoerce
555toAny = 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
579data EventSubscribed x = EventSubscribed
557data EventSubscribed x = EventSubscribed
580 { eventSubscribedHeightRef :: {-# UNPACK #-} !(IORef Height)
558 { eventSubscribedHeightRef :: {-# UNPACK #-} !(IORef Height)
581 , eventSubscribedRetained :: {-# NOUNPACK #-} !Any
559 , eventSubscribedRetained :: {-# NOUNPACK #-} !Any
582#ifdef DEBUG_CYCLES
560#ifdef DEBUG_CYCLES
583− , eventSubscribedGetParents :: !(IO [EventSubscribed x]) -- For debugging loops
561+ , eventSubscribedGetParents :: !(IO [Some (EventSubscribed x)]) -- For debugging loops
584 , eventSubscribedHasOwnHeightRef :: !Bool
562 , eventSubscribedHasOwnHeightRef :: !Bool
585 , eventSubscribedWhoCreated :: !(IO [String])
563 , eventSubscribedWhoCreated :: !(IO [String])
@@ -607,23 +585,13 @@ eventSubscribedNever = EventSubscribed
607 , eventSubscribedWhoCreated = return ["never"]
585 , 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"]
621−eventSubscribedFan :: FanSubscribed x k v -> EventSubscribed x
589+eventSubscribedFan :: FanSubscribed x k -> EventSubscribed x
622eventSubscribedFan !subscribed = EventSubscribed
590eventSubscribedFan !subscribed = EventSubscribed
623 { eventSubscribedHeightRef = eventSubscribedHeightRef $ _eventSubscription_subscribed $ fanSubscribedParent subscribed
591 { eventSubscribedHeightRef = eventSubscribedHeightRef $ _eventSubscription_subscribed $ fanSubscribedParent subscribed
624 , eventSubscribedRetained = toAny subscribed
592 , eventSubscribedRetained = toAny subscribed
625#ifdef DEBUG_CYCLES
593#ifdef DEBUG_CYCLES
626− , eventSubscribedGetParents = return [_eventSubscription_subscribed $ fanSubscribedParent subscribed]
594+ , eventSubscribedGetParents = return [Some.This $ _eventSubscription_subscribed $ fanSubscribedParent subscribed]
627 , eventSubscribedHasOwnHeightRef = False
595 , eventSubscribedHasOwnHeightRef = False
628 , eventSubscribedWhoCreated = whoCreatedIORef $ fanSubscribedCachedSubscribed subscribed
596 , eventSubscribedWhoCreated = whoCreatedIORef $ fanSubscribedCachedSubscribed subscribed
@@ -636,7 +604,7 @@ eventSubscribedSwitch !subscribed = EventSubscribed
636#ifdef DEBUG_CYCLES
604#ifdef DEBUG_CYCLES
637 , eventSubscribedGetParents = do
605 , eventSubscribedGetParents = do
638 s <- readIORef $ switchSubscribedCurrentParent subscribed
606 s <- readIORef $ switchSubscribedCurrentParent subscribed
639− return [_eventSubscription_subscribed s]
607+ return [Some.This $ _eventSubscription_subscribed s]
640 , eventSubscribedHasOwnHeightRef = True
608 , eventSubscribedHasOwnHeightRef = True
641 , eventSubscribedWhoCreated = whoCreatedIORef $ switchSubscribedCachedSubscribed subscribed
609 , eventSubscribedWhoCreated = whoCreatedIORef $ switchSubscribedCachedSubscribed subscribed
@@ -649,8 +617,8 @@ eventSubscribedCoincidence !subscribed = EventSubscribed
649#ifdef DEBUG_CYCLES
617#ifdef DEBUG_CYCLES
650 , eventSubscribedGetParents = do
618 , eventSubscribedGetParents = do
651 innerSubscription <- readIORef $ coincidenceSubscribedInnerParent subscribed
619 innerSubscription <- readIORef $ coincidenceSubscribedInnerParent subscribed
652− let outerParent = _eventSubscription_subscribed $ coincidenceSubscribedOuterParent subscribed
620+ let outerParent = Some.This $ _eventSubscription_subscribed $ coincidenceSubscribedOuterParent subscribed
653− innerParents = maybeToList $ innerSubscription
621+ innerParents = maybeToList $ fmap Some.This innerSubscription
654 return $ outerParent : innerParents
622 return $ outerParent : innerParents
655 , eventSubscribedHasOwnHeightRef = True
623 , eventSubscribedHasOwnHeightRef = True
656 , eventSubscribedWhoCreated = whoCreatedIORef $ coincidenceSubscribedCachedSubscribed subscribed
624 , eventSubscribedWhoCreated = whoCreatedIORef $ coincidenceSubscribedCachedSubscribed subscribed
@@ -664,20 +632,20 @@ getEventSubscribedHeight es = readIORef $ eventSubscribedHeightRef es
664whoCreatedEventSubscribed :: EventSubscribed x -> IO [String]
632whoCreatedEventSubscribed :: EventSubscribed x -> IO [String]
665whoCreatedEventSubscribed = eventSubscribedWhoCreated
633whoCreatedEventSubscribed = eventSubscribedWhoCreated
667−walkInvalidHeightParents :: EventSubscribed x -> IO [EventSubscribed x]
635+walkInvalidHeightParents :: EventSubscribed x -> IO [Some (EventSubscribed x)]
668walkInvalidHeightParents s0 = do
636walkInvalidHeightParents s0 = do
669− subscribers <- flip execStateT mempty $ ($ s0) $ fix $ \loop s -> do
637+ subscribers <- flip execStateT mempty $ ($ Some.This s0) $ fix $ \loop (Some.This s) -> do
670 h <- liftIO $ readIORef $ eventSubscribedHeightRef s
638 h <- liftIO $ readIORef $ eventSubscribedHeightRef s
671 when (h == invalidHeight) $ do
639 when (h == invalidHeight) $ do
672 when (eventSubscribedHasOwnHeightRef s) $ liftIO $ writeIORef (eventSubscribedHeightRef s) $! invalidHeightBeingTraversed
640 when (eventSubscribedHasOwnHeightRef s) $ liftIO $ writeIORef (eventSubscribedHeightRef s) $! invalidHeightBeingTraversed
673− modify (s :)
641+ modify (Some.This s :)
674 mapM_ loop =<< liftIO (eventSubscribedGetParents s)
642 mapM_ loop =<< liftIO (eventSubscribedGetParents s)
675− forM_ subscribers $ \s -> writeIORef (eventSubscribedHeightRef s) $! invalidHeight
643+ forM_ subscribers $ \(Some.This s) -> writeIORef (eventSubscribedHeightRef s) $! invalidHeight
676 return subscribers
644 return subscribers
679{-# INLINE subscribeHoldEvent #-}
647{-# INLINE subscribeHoldEvent #-}
680−subscribeHoldEvent :: Hold x p -> Subscriber x p -> EventM x (EventSubscription x, Maybe p)
648+subscribeHoldEvent :: HasSpiderTimeline x => Hold x p -> Subscriber x p -> EventM x (EventSubscription x, Maybe p)
681subscribeHoldEvent = subscribeAndRead . holdEvent
649subscribeHoldEvent = subscribeAndRead . holdEvent
683--------------------------------------------------------------------------------
651--------------------------------------------------------------------------------
@@ -700,7 +668,7 @@ behaviorPull !p = Behavior $ do
700 val <- liftIO $ readIORef $ pullValue p
668 val <- liftIO $ readIORef $ pullValue p
701 case val of
669 case val of
702 Just subscribed -> do
670 Just subscribed -> do
703− askParentsRef >>= mapM_ (\r -> liftIO $ modifyIORef' r (SomeBehaviorSubscribed (Some (BehaviorSubscribedPull subscribed)) :))
671+ askParentsRef >>= mapM_ (\r -> liftIO $ modifyIORef' r (SomeBehaviorSubscribed (BehaviorSubscribedPull subscribed) :))
704 askInvalidator >>= mapM_ (\wi -> liftIO $ modifyIORef' (pullSubscribedInvalidators subscribed) (wi:))
672 askInvalidator >>= mapM_ (\wi -> liftIO $ modifyIORef' (pullSubscribedInvalidators subscribed) (wi:))
705 liftIO $ touch $ pullSubscribedOwnInvalidator subscribed
673 liftIO $ touch $ pullSubscribedOwnInvalidator subscribed
706 return $ pullSubscribedValue subscribed
674 return $ pullSubscribedValue subscribed
@@ -709,7 +677,7 @@ behaviorPull !p = Behavior $ do
709 wi <- liftIO $ mkWeakPtrWithDebug i "InvalidatorPull"
677 wi <- liftIO $ mkWeakPtrWithDebug i "InvalidatorPull"
710 parentsRef <- liftIO $ newIORef []
678 parentsRef <- liftIO $ newIORef []
711 holdInits <- askBehaviorHoldInits
679 holdInits <- askBehaviorHoldInits
712− a <- liftIO $ runReaderIO (unBehaviorM $ pullCompute p) (Just (wi, parentsRef), holdInits)
680+ a <- liftIO $ runReaderT (unBehaviorM $ pullCompute p) (Just (wi, parentsRef), holdInits)
713 invsRef <- liftIO . newIORef . maybeToList =<< askInvalidator
681 invsRef <- liftIO . newIORef . maybeToList =<< askInvalidator
714 parents <- liftIO $ readIORef parentsRef
682 parents <- liftIO $ readIORef parentsRef
715 let subscribed = PullSubscribed
683 let subscribed = PullSubscribed
@@ -719,7 +687,7 @@ behaviorPull !p = Behavior $ do
719 , pullSubscribedParents = parents
687 , pullSubscribedParents = parents
721 liftIO $ writeIORef (pullValue p) $ Just subscribed
689 liftIO $ writeIORef (pullValue p) $ Just subscribed
722− askParentsRef >>= mapM_ (\r -> liftIO $ modifyIORef' r (SomeBehaviorSubscribed (Some (BehaviorSubscribedPull subscribed)) :))
690+ askParentsRef >>= mapM_ (\r -> liftIO $ modifyIORef' r (SomeBehaviorSubscribed (BehaviorSubscribedPull subscribed) :))
725behaviorDyn :: Patch p => Dyn x p -> Behavior x (PatchTarget p)
693behaviorDyn :: Patch p => Dyn x p -> Behavior x (PatchTarget p)
@@ -730,7 +698,7 @@ readHoldTracked :: Hold x p -> BehaviorM x (PatchTarget p)
730readHoldTracked h = do
698readHoldTracked h = do
731 result <- liftIO $ readIORef $ holdValue h
699 result <- liftIO $ readIORef $ holdValue h
732 askInvalidator >>= mapM_ (\wi -> liftIO $ modifyIORef' (holdInvalidators h) (wi:))
700 askInvalidator >>= mapM_ (\wi -> liftIO $ modifyIORef' (holdInvalidators h) (wi:))
733− askParentsRef >>= mapM_ (\r -> liftIO $ modifyIORef' r (SomeBehaviorSubscribed (Some (BehaviorSubscribedHold h)) :))
701+ askParentsRef >>= mapM_ (\r -> liftIO $ modifyIORef' r (SomeBehaviorSubscribed (BehaviorSubscribedHold h) :))
734 liftIO $ touch h -- Otherwise, if this gets inlined enough, the hold's parent reference may get collected
702 liftIO $ touch h -- Otherwise, if this gets inlined enough, the hold's parent reference may get collected
735 return result
703 return result
@@ -744,46 +712,42 @@ readBehaviorUntracked b = do
744-- Dynamic
712-- Dynamic
745--------------------------------------------------------------------------------
713--------------------------------------------------------------------------------
747−type DynamicS x p = Dynamic x (PatchTarget p) p
749−data Dynamic x target p = Dynamic
715+data Dynamic x p = Dynamic
750− { dynamicCurrent :: !(Behavior x target)
716+ { dynamicCurrent :: !(Behavior x (PatchTarget p))
751− , dynamicUpdated :: Event x p -- This must be lazy; see the comment on holdEvent --TODO: Would this let us eliminate `Dyn`?
717+ , dynamicUpdated :: !(Event x p)
754−deriving instance (HasSpiderTimeline x) => Functor (Dynamic x target)
759−dynamicHold :: Hold x p -> DynamicS x p
720+dynamicHold :: HasSpiderTimeline x => Hold x p -> Dynamic x p
760dynamicHold !h = Dynamic
721dynamicHold !h = Dynamic
761 { dynamicCurrent = behaviorHold h
722 { dynamicCurrent = behaviorHold h
762 , dynamicUpdated = eventHold h
723 , dynamicUpdated = eventHold h
765−dynamicHoldIdentity :: Hold x (Identity a) -> DynamicS x (Identity a)
726+dynamicHoldIdentity :: HasSpiderTimeline x => Hold x (Identity a) -> Dynamic x (Identity a)
766dynamicHoldIdentity = dynamicHold
727dynamicHoldIdentity = dynamicHold
768−dynamicConst :: PatchTarget p -> DynamicS x p
729+dynamicConst :: PatchTarget p -> Dynamic x p
769dynamicConst !a = Dynamic
730dynamicConst !a = Dynamic
770 { dynamicCurrent = behaviorConst a
731 { dynamicCurrent = behaviorConst a
771 , dynamicUpdated = eventNever
732 , dynamicUpdated = eventNever
774−dynamicDyn :: (HasSpiderTimeline x, Patch p) => Dyn x p -> DynamicS x p
735+dynamicDyn :: (HasSpiderTimeline x, Patch p) => Dyn x p -> Dynamic x p
775dynamicDyn !d = Dynamic
736dynamicDyn !d = Dynamic
776 { dynamicCurrent = behaviorDyn d
737 { dynamicCurrent = behaviorDyn d
777 , dynamicUpdated = eventDyn d
738 , dynamicUpdated = eventDyn d
780−dynamicDynIdentity :: HasSpiderTimeline x => Dyn x (Identity a) -> DynamicS x (Identity a)
741+dynamicDynIdentity :: HasSpiderTimeline x => Dyn x (Identity a) -> Dynamic x (Identity a)
781dynamicDynIdentity = dynamicDyn
742dynamicDynIdentity = dynamicDyn
783--------------------------------------------------------------------------------
744--------------------------------------------------------------------------------
784-- Combinators
745-- Combinators
785--------------------------------------------------------------------------------
746--------------------------------------------------------------------------------
748+--TODO: Figure out why certain things are not 'representational', then make them
749+--representational so we can use coerce
787--type role Hold representational
751--type role Hold representational
788data Hold x p
752data Hold x p
789 = Hold { holdValue :: !(IORef (PatchTarget p))
753 = Hold { holdValue :: !(IORef (PatchTarget p))
@@ -795,7 +759,9 @@ data Hold x p
798−-- | A statically allocated 'SpiderTimeline'
762+-- | A statically allocated 'SpiderTimeline'; this is the only instance of
763+-- 'SpiderTimeline' that can used when using
764+-- -fspecialize-to-spidertimeline-global.
799data Global
765data Global
801{-# NOINLINE globalSpiderTimelineEnv #-}
767{-# NOINLINE globalSpiderTimelineEnv #-}
@@ -804,27 +770,30 @@ globalSpiderTimelineEnv = unsafePerformIO unsafeNewSpiderTimelineEnv
805-- | Stores all global data relevant to a particular Spider timeline; only one
771-- | Stores all global data relevant to a particular Spider timeline; only one
806-- value should exist for each type @x@
772-- value should exist for each type @x@
807−newtype SpiderTimelineEnv x = STE {unSTE :: SpiderTimelineEnv' x}
808−-- We implement SpiderTimelineEnv with a newtype wrapper so
809−-- we can get the coercions we want safely.
810−type role SpiderTimelineEnv nominal
812−data SpiderTimelineEnv' x = SpiderTimelineEnv
773+data SpiderTimelineEnv x = SpiderTimelineEnv
813 { _spiderTimeline_lock :: {-# UNPACK #-} !(MVar ())
774 { _spiderTimeline_lock :: {-# UNPACK #-} !(MVar ())
814 , _spiderTimeline_eventEnv :: {-# UNPACK #-} !(EventEnv x)
775 , _spiderTimeline_eventEnv :: {-# UNPACK #-} !(EventEnv x)
815#ifdef DEBUG
776#ifdef DEBUG
816 , _spiderTimeline_depth :: {-# UNPACK #-} !(IORef Int)
777 , _spiderTimeline_depth :: {-# UNPACK #-} !(IORef Int)
819−type role SpiderTimelineEnv' phantom
780+type role SpiderTimelineEnv nominal
821instance Eq (SpiderTimelineEnv x) where
782instance Eq (SpiderTimelineEnv x) where
822 _ == _ = True -- Since only one exists of each type
783 _ == _ = True -- Since only one exists of each type
824instance GEq SpiderTimelineEnv where
785instance GEq SpiderTimelineEnv where
786+#ifdef EXPERIMENTAL_DEPENDENT_SUM_INSTANCES
788+ geqUnify (a :: SpiderTimelineEnv a) (b :: SpiderTimelineEnv b) different same = if _spiderTimeline_lock a == _spiderTimeline_lock b
789+ then case unsafeCoerce Refl :: a :~: b of
790+ Refl -> same -- This unsafeCoerce is safe because the same SpiderTimelineEnv can't have two different 'x' arguments
825− a `geq` b = if _spiderTimeline_lock (unSTE a) == _spiderTimeline_lock (unSTE b)
793+ a `geq` b = if _spiderTimeline_lock a == _spiderTimeline_lock b
826 then Just $ unsafeCoerce Refl -- This unsafeCoerce is safe because the same SpiderTimelineEnv can't have two different 'x' arguments
794 then Just $ unsafeCoerce Refl -- This unsafeCoerce is safe because the same SpiderTimelineEnv can't have two different 'x' arguments
827 else Nothing
795 else Nothing
829data EventEnv x
798data EventEnv x
830 = EventEnv { eventEnvAssignments :: !(IORef [SomeAssignment x]) -- Needed for Subscribe
799 = EventEnv { eventEnvAssignments :: !(IORef [SomeAssignment x]) -- Needed for Subscribe
@@ -832,9 +801,9 @@ data EventEnv x
832 , eventEnvDynInits :: !(IORef [SomeDynInit x])
801 , eventEnvDynInits :: !(IORef [SomeDynInit x])
833 , eventEnvMergeUpdates :: !(IORef [SomeMergeUpdate x])
802 , eventEnvMergeUpdates :: !(IORef [SomeMergeUpdate x])
834 , eventEnvMergeInits :: !(IORef [SomeMergeInit x]) -- Needed for Subscribe
803 , eventEnvMergeInits :: !(IORef [SomeMergeInit x]) -- Needed for Subscribe
835− , eventEnvClears :: !(IORef [Some Clear]) -- Needed for Subscribe
804+ , eventEnvClears :: !(IORef [SomeClear]) -- Needed for Subscribe
836− , eventEnvIntClears :: !(IORef [Some IntClear])
805+ , eventEnvIntClears :: !(IORef [SomeIntClear])
837− , eventEnvRootClears :: !(IORef [Some RootClear])
806+ , eventEnvRootClears :: !(IORef [SomeRootClear])
838 , eventEnvCurrentHeight :: !(IORef Height) -- Needed for Subscribe
807 , eventEnvCurrentHeight :: !(IORef Height) -- Needed for Subscribe
839 , eventEnvResetCoincidences :: !(IORef [SomeResetCoincidence x]) -- Needed for Subscribe
808 , eventEnvResetCoincidences :: !(IORef [SomeResetCoincidence x]) -- Needed for Subscribe
840 , eventEnvDelayedMerges :: !(IORef (IntMap [EventM x ()]))
809 , eventEnvDelayedMerges :: !(IORef (IntMap [EventM x ()]))
@@ -845,7 +814,7 @@ runEventM :: EventM x a -> IO a
845runEventM = unEventM
814runEventM = unEventM
847asksEventEnv :: forall x a. HasSpiderTimeline x => (EventEnv x -> a) -> EventM x a
816asksEventEnv :: forall x a. HasSpiderTimeline x => (EventEnv x -> a) -> EventM x a
848−asksEventEnv f = return $ f $ _spiderTimeline_eventEnv (unSTE (spiderTimeline :: SpiderTimelineEnv x))
817+asksEventEnv f = return $ f $ _spiderTimeline_eventEnv (spiderTimeline :: SpiderTimelineEnv x)
850class MonadIO m => Defer a m where
819class MonadIO m => Defer a m where
851 getDeferralQueue :: m (IORef [a])
820 getDeferralQueue :: m (IORef [a])
@@ -894,7 +863,11 @@ instance HasSpiderTimeline x => HasCurrentHeight x (EventM x) where
894 delayedRef <- asksEventEnv eventEnvDelayedMerges
863 delayedRef <- asksEventEnv eventEnvDelayedMerges
895 liftIO $ modifyIORef' delayedRef $ IntMap.insertWith (++) (unHeight height) [subscribed]
864 liftIO $ modifyIORef' delayedRef $ IntMap.insertWith (++) (unHeight height) [subscribed]
866+#ifdef SPECIALIZE_TO_SPIDERTIMELINE_GLOBAL
867+class x ~ Global => HasSpiderTimeline x where
897class HasSpiderTimeline x where
869class HasSpiderTimeline x where
898 -- | Retrieve the current SpiderTimelineEnv
871 -- | Retrieve the current SpiderTimelineEnv
899 spiderTimeline :: SpiderTimelineEnv x
872 spiderTimeline :: SpiderTimelineEnv x
@@ -906,29 +879,29 @@ putCurrentHeight h = do
906 heightRef <- asksEventEnv eventEnvCurrentHeight
879 heightRef <- asksEventEnv eventEnvCurrentHeight
907 liftIO $ writeIORef heightRef $! h
880 liftIO $ writeIORef heightRef $! h
909−instance HasSpiderTimeline x => Defer (Some Clear) (EventM x) where
882+instance HasSpiderTimeline x => Defer SomeClear (EventM x) where
910 {-# INLINE getDeferralQueue #-}
883 {-# INLINE getDeferralQueue #-}
911 getDeferralQueue = asksEventEnv eventEnvClears
884 getDeferralQueue = asksEventEnv eventEnvClears
913{-# INLINE scheduleClear #-}
886{-# INLINE scheduleClear #-}
914−scheduleClear :: Defer (Some Clear) m => IORef (Maybe a) -> m ()
887+scheduleClear :: Defer SomeClear m => IORef (Maybe a) -> m ()
915−scheduleClear r = defer $ Some $ Clear r
888+scheduleClear r = defer $ SomeClear r
917−instance HasSpiderTimeline x => Defer (Some IntClear) (EventM x) where
890+instance HasSpiderTimeline x => Defer SomeIntClear (EventM x) where
918 {-# INLINE getDeferralQueue #-}
891 {-# INLINE getDeferralQueue #-}
919 getDeferralQueue = asksEventEnv eventEnvIntClears
892 getDeferralQueue = asksEventEnv eventEnvIntClears
921{-# INLINE scheduleIntClear #-}
894{-# INLINE scheduleIntClear #-}
922−scheduleIntClear :: Defer (Some IntClear) m => IORef (IntMap a) -> m ()
895+scheduleIntClear :: Defer SomeIntClear m => IORef (IntMap a) -> m ()
923−scheduleIntClear r = defer $ Some $ IntClear r
896+scheduleIntClear r = defer $ SomeIntClear r
925−instance HasSpiderTimeline x => Defer (Some RootClear) (EventM x) where
898+instance HasSpiderTimeline x => Defer SomeRootClear (EventM x) where
926 {-# INLINE getDeferralQueue #-}
899 {-# INLINE getDeferralQueue #-}
927 getDeferralQueue = asksEventEnv eventEnvRootClears
900 getDeferralQueue = asksEventEnv eventEnvRootClears
929{-# INLINE scheduleRootClear #-}
902{-# INLINE scheduleRootClear #-}
930−scheduleRootClear :: Defer (Some RootClear) m => IORef (DMap k Identity) -> m ()
903+scheduleRootClear :: Defer SomeRootClear m => IORef (DMap k Identity) -> m ()
931−scheduleRootClear r = defer $ Some $ RootClear r
904+scheduleRootClear r = defer $ SomeRootClear r
933instance HasSpiderTimeline x => Defer (SomeResetCoincidence x) (EventM x) where
906instance HasSpiderTimeline x => Defer (SomeResetCoincidence x) (EventM x) where
934 {-# INLINE getDeferralQueue #-}
907 {-# INLINE getDeferralQueue #-}
@@ -983,9 +956,9 @@ getHoldEventSubscription h = do
984type BehaviorEnv x = (Maybe (Weak (Invalidator x), IORef [SomeBehaviorSubscribed x]), IORef [SomeHoldInit x])
957type BehaviorEnv x = (Maybe (Weak (Invalidator x), IORef [SomeBehaviorSubscribed x]), IORef [SomeHoldInit x])
959+--type role BehaviorM representational
986-- BehaviorM can sample behaviors
960-- BehaviorM can sample behaviors
987−newtype BehaviorM x a = BehaviorM { unBehaviorM :: ReaderIO (BehaviorEnv x) a }
961+newtype BehaviorM x a = BehaviorM { unBehaviorM :: ReaderT (BehaviorEnv x) IO a } deriving (Functor, Applicative, MonadIO, MonadFix)
988− deriving (Functor, Applicative, MonadIO, MonadFix, MonadReader (BehaviorEnv x))
990instance Monad (BehaviorM x) where
963instance Monad (BehaviorM x) where
991 {-# INLINE (>>=) #-}
964 {-# INLINE (>>=) #-}
@@ -994,16 +967,14 @@ instance Monad (BehaviorM x) where
994 BehaviorM x >> BehaviorM y = BehaviorM $ x >> y
967 BehaviorM x >> BehaviorM y = BehaviorM $ x >> y
995 {-# INLINE return #-}
968 {-# INLINE return #-}
996 return x = BehaviorM $ return x
969 return x = BehaviorM $ return x
997−#if !MIN_VERSION_base(4,13,0)
998 {-# INLINE fail #-}
970 {-# INLINE fail #-}
999 fail s = BehaviorM $ fail s
971 fail s = BehaviorM $ fail s
1002data BehaviorSubscribed x a
973data BehaviorSubscribed x a
1003 = forall p. BehaviorSubscribedHold (Hold x p)
974 = forall p. BehaviorSubscribedHold (Hold x p)
1004 | BehaviorSubscribedPull (PullSubscribed x a)
975 | BehaviorSubscribedPull (PullSubscribed x a)
1006−newtype SomeBehaviorSubscribed x = SomeBehaviorSubscribed (Some (BehaviorSubscribed x))
977+data SomeBehaviorSubscribed x = forall a. SomeBehaviorSubscribed (BehaviorSubscribed x a)
1008--type role PullSubscribed representational
979--type role PullSubscribed representational
1009data PullSubscribed x a
980data PullSubscribed x a
@@ -1038,7 +1009,7 @@ data RootSubscribed x a = forall k. GCompare k => RootSubscribed
1041−data Root x k
1012+data Root x (k :: * -> *)
1042 = Root { rootOccurrence :: !(IORef (DMap k Identity)) -- The currently-firing occurrence of this event
1013 = Root { rootOccurrence :: !(IORef (DMap k Identity)) -- The currently-firing occurrence of this event
1043 , rootSubscribed :: !(IORef (DMap k (RootSubscribed x)))
1014 , rootSubscribed :: !(IORef (DMap k (RootSubscribed x)))
1044 , rootInit :: !(forall a. k a -> RootTrigger x a -> IO (IO ()))
1015 , rootInit :: !(forall a. k a -> RootTrigger x a -> IO (IO ()))
@@ -1057,7 +1028,7 @@ data SomeMergeUpdate x = SomeMergeUpdate
1057newtype SomeMergeInit x = SomeMergeInit { unSomeMergeInit :: EventM x () }
1028newtype SomeMergeInit x = SomeMergeInit { unSomeMergeInit :: EventM x () }
1059-- EventM can do everything BehaviorM can, plus create holds
1030-- EventM can do everything BehaviorM can, plus create holds
1060−newtype EventM x a = EventM { unEventM :: IO a } deriving (Functor, Applicative, Monad, MonadIO, MonadFix, MonadException, MonadAsyncException)
1031+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
1062newtype MergeSubscribedParent x a = MergeSubscribedParent { unMergeSubscribedParent :: EventSubscription x }
1033newtype MergeSubscribedParent x a = MergeSubscribedParent { unMergeSubscribedParent :: EventSubscription x }
@@ -1082,8 +1053,7 @@ heightBagFromList :: [Height] -> HeightBag
1082heightBagFromList heights = heightBagVerify $ foldl' (flip heightBagAdd) heightBagEmpty heights
1053heightBagFromList heights = heightBagVerify $ foldl' (flip heightBagAdd) heightBagEmpty heights
1084heightBagAdd :: Height -> HeightBag -> HeightBag
1055heightBagAdd :: Height -> HeightBag -> HeightBag
1085−heightBagAdd (Height h) (HeightBag s c) = heightBagVerify $ HeightBag (succ s) $
1056+heightBagAdd (Height h) (HeightBag s c) = heightBagVerify $ HeightBag (succ s) $ IntMap.insertWithKey (\_ _ old -> succ old) h 0 c
1086− IntMap.insertWithKey (\_ _ old -> succ old) h 0 c
1088heightBagRemove :: Height -> HeightBag -> HeightBag
1058heightBagRemove :: Height -> HeightBag -> HeightBag
1089heightBagRemove (Height h) b@(HeightBag s c) = heightBagVerify $ case IntMap.lookup h c of
1059heightBagRemove (Height h) b@(HeightBag s c) = heightBagVerify $ case IntMap.lookup h c of
@@ -1092,13 +1062,6 @@ heightBagRemove (Height h) b@(HeightBag s c) = heightBagVerify $ case IntMap.loo
1092 0 -> IntMap.delete h c
1062 0 -> IntMap.delete h c
1093 _ -> IntMap.insert h (pred old) c
1063 _ -> 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
1102heightBagMax :: HeightBag -> Height
1065heightBagMax :: HeightBag -> Height
1103heightBagMax (HeightBag _ c) = case IntMap.maxViewWithKey c of
1066heightBagMax (HeightBag _ c) = case IntMap.maxViewWithKey c of
1104 Just ((h, _), _) -> Height h
1067 Just ((h, _), _) -> Height h
@@ -1116,25 +1079,25 @@ heightBagVerify b@(HeightBag s c) = if
1116heightBagVerify = id
1079heightBagVerify = id
1119−data FanSubscribedChildren x k v a = FanSubscribedChildren
1082+data FanSubscribedChildren (x :: *) k a = FanSubscribedChildren
1120− { _fanSubscribedChildren_list :: !(WeakBag (Subscriber x (v a)))
1083+ { _fanSubscribedChildren_list :: !(WeakBag (Subscriber x a))
1121− , _fanSubscribedChildren_self :: {-# NOUNPACK #-} !(k a, FanSubscribed x k v)
1084+ , _fanSubscribedChildren_self :: {-# NOUNPACK #-} !(k a, FanSubscribed x k)
1122− , _fanSubscribedChildren_weakSelf :: !(IORef (Weak (k a, FanSubscribed x k v)))
1085+ , _fanSubscribedChildren_weakSelf :: !(IORef (Weak (k a, FanSubscribed x k)))
1125−data FanSubscribed x k v
1088+data FanSubscribed (x :: *) k
1126− = FanSubscribed { fanSubscribedCachedSubscribed :: !(IORef (Maybe (FanSubscribed x k v)))
1089+ = FanSubscribed { fanSubscribedCachedSubscribed :: !(IORef (Maybe (FanSubscribed x k)))
1127− , fanSubscribedOccurrence :: !(IORef (Maybe (DMap k v)))
1090+ , fanSubscribedOccurrence :: !(IORef (Maybe (DMap k Identity)))
1128− , fanSubscribedSubscribers :: !(IORef (DMap k (FanSubscribedChildren x k v))) -- This DMap should never be empty
1091+ , fanSubscribedSubscribers :: !(IORef (DMap k (FanSubscribedChildren x k))) -- This DMap should never be empty
1129 , fanSubscribedParent :: !(EventSubscription x)
1092 , fanSubscribedParent :: !(EventSubscription x)
1130#ifdef DEBUG_NODEIDS
1093#ifdef DEBUG_NODEIDS
1131 , fanSubscribedNodeId :: Int
1094 , fanSubscribedNodeId :: Int
1135−data Fan x k v
1098+data Fan x k
1136− = Fan { fanParent :: !(Event x (DMap k v))
1099+ = Fan { fanParent :: !(Event x (DMap k Identity))
1137− , fanSubscribed :: !(IORef (Maybe (FanSubscribed x k v)))
1100+ , fanSubscribed :: !(IORef (Maybe (FanSubscribed x k)))
1140data SwitchSubscribed x a
1103data SwitchSubscribed x a
@@ -1188,35 +1151,20 @@ newInvalidatorSwitch subd = return $! InvalidatorSwitch subd
1188newInvalidatorPull :: Pull x a -> IO (Invalidator x)
1151newInvalidatorPull :: Pull x a -> IO (Invalidator x)
1189newInvalidatorPull p = return $! InvalidatorPull p
1152newInvalidatorPull p = return $! InvalidatorPull p
1191−instance HasSpiderTimeline x => Filterable (Event x) where
1154+instance HasSpiderTimeline x => FunctorMaybe (Event x) where
1192− mapMaybe f = push $ return . f
1155+ fmapMaybe f = push $ return . f
1194instance HasSpiderTimeline x => Align (Event x) where
1157instance HasSpiderTimeline x => Align (Event x) where
1195 nil = eventNever
1158 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 $
1200− DMap.fromDistinctAscList [LeftTag :=> ea, RightTag :=> eb]
1159+ align ea eb = fmapMaybe dmapToThese $ merge $ dynamicConst $ DMap.fromDistinctAscList [LeftTag :=> ea, RightTag :=> eb]
1202−#ifdef MIN_VERSION_semialign
1203−#if MIN_VERSION_semialign(1,1,0)
1204−instance HasSpiderTimeline x => Zip (Event x) where
1206− zip x y = mapMaybe justThese $ align x y
1209−data DynType x p = UnsafeDyn !(BehaviorM x (PatchTarget p), Event x p)
1210− | BuildDyn !(EventM x (PatchTarget p), Event x p)
1211− | HoldDyn !(Hold x p)
1213−newtype Dyn (x :: Type) p = Dyn { unDyn :: IORef (DynType x p) }
1161+newtype Dyn x p = Dyn { unDyn :: IORef (Either (BehaviorM x (PatchTarget p), Event x p) (Hold x p)) }
1215−newMapDyn :: HasSpiderTimeline x => (a -> b) -> DynamicS x (Identity a) -> DynamicS x (Identity b)
1163+newMapDyn :: HasSpiderTimeline x => (a -> b) -> Dynamic x (Identity a) -> Dynamic x (Identity b)
1216newMapDyn f d = dynamicDynIdentity $ unsafeBuildDynamic (fmap f $ readBehaviorTracked $ dynamicCurrent d) (Identity . f . runIdentity <$> dynamicUpdated d)
1164newMapDyn f d = dynamicDynIdentity $ unsafeBuildDynamic (fmap f $ readBehaviorTracked $ dynamicCurrent d) (Identity . f . runIdentity <$> dynamicUpdated d)
1218--TODO: Avoid the duplication between this and R.zipDynWith
1166--TODO: Avoid the duplication between this and R.zipDynWith
1219−zipDynWith :: HasSpiderTimeline x => (a -> b -> c) -> DynamicS x (Identity a) -> DynamicS x (Identity b) -> DynamicS x (Identity c)
1167+zipDynWith :: HasSpiderTimeline x => (a -> b -> c) -> Dynamic x (Identity a) -> Dynamic x (Identity b) -> Dynamic x (Identity c)
1220zipDynWith f da db =
1168zipDynWith f da db =
1221 let eab = align (dynamicUpdated da) (dynamicUpdated db)
1169 let eab = align (dynamicUpdated da) (dynamicUpdated db)
1222 ec = flip push eab $ \o -> do
1170 ec = flip push eab $ \o -> do
@@ -1231,20 +1179,26 @@ zipDynWith f da db =
1231 return $ Just $ Identity $ f a b
1179 return $ Just $ Identity $ f a b
1232 in dynamicDynIdentity $ unsafeBuildDynamic (f <$> readBehaviorUntracked (dynamicCurrent da) <*> readBehaviorUntracked (dynamicCurrent db)) ec
1180 in dynamicDynIdentity $ unsafeBuildDynamic (f <$> readBehaviorUntracked (dynamicCurrent da) <*> readBehaviorUntracked (dynamicCurrent db)) ec
1234−buildDynamic :: (Defer (SomeDynInit x) m, Patch p) => EventM x (PatchTarget p) -> Event x p -> m (Dyn x p)
1182+buildDynamic :: (Defer (SomeDynInit x) m, Patch p) => BehaviorM x (PatchTarget p) -> Event x p -> m (Dyn x p)
1235buildDynamic readV0 v' = do
1183buildDynamic readV0 v' = do
1236− result <- liftIO $ newIORef $ BuildDyn (readV0, v')
1184+ result <- liftIO $ newIORef $ Left (readV0, v')
1237 let !d = Dyn result
1185 let !d = Dyn result
1238 defer $ SomeDynInit d
1186 defer $ SomeDynInit d
1239 return d
1187 return d
1241unsafeBuildDynamic :: BehaviorM x (PatchTarget p) -> Event x p -> Dyn x p
1189unsafeBuildDynamic :: BehaviorM x (PatchTarget p) -> Event x p -> Dyn x p
1242−unsafeBuildDynamic readV0 v' =
1190+unsafeBuildDynamic readV0 v' = Dyn $ unsafeNewIORef x $ Left x
1243− Dyn $ unsafePerformIO $ newIORef $ UnsafeDyn (readV0, v')
1191+ where x = (readV0, v')
1245-- ResultM can read behaviors and events
1193-- ResultM can read behaviors and events
1246type ResultM = EventM
1194type ResultM = EventM
1196+{-# NOINLINE unsafeNewIORef #-}
1197+unsafeNewIORef :: a -> b -> IORef b
1198+unsafeNewIORef a b = unsafePerformIO $ do
1248instance HasSpiderTimeline x => Functor (Event x) where
1202instance HasSpiderTimeline x => Functor (Event x) where
1249 fmap f = push $ return . Just . f
1203 fmap f = push $ return . Just . f
@@ -1257,42 +1211,33 @@ push f e = cacheEvent (pushCheap f e)
1258{-# INLINABLE pull #-}
1212{-# INLINABLE pull #-}
1259pull :: BehaviorM x a -> Behavior x a
1213pull :: BehaviorM x a -> Behavior x a
1260−pull a = unsafePerformIO $ do
1261− ref <- newIORef Nothing
1262−#ifdef DEBUG_NODEIDS
1265− pure $ behaviorPull $ Pull
1214+pull a = behaviorPull $ Pull
1266− { pullCompute = a
1215+ { pullCompute = a
1267− , pullValue = ref
1216+ , pullValue = unsafeNewIORef a Nothing
1268#ifdef DEBUG_NODEIDS
1217#ifdef DEBUG_NODEIDS
1269− , pullNodeId = nid
1218+ , pullNodeId = unsafeNodeId a
1273{-# INLINABLE switch #-}
1222{-# INLINABLE switch #-}
1274switch :: HasSpiderTimeline x => Behavior x (Event x a) -> Event x a
1223switch :: HasSpiderTimeline x => Behavior x (Event x a) -> Event x a
1275−switch a = unsafePerformIO $ do
1276− ref <- newIORef Nothing
1277− pure $ eventSwitch $ Switch
1224+switch a = eventSwitch $ Switch
1278− { switchParent = a
1225+ { switchParent = a
1279− , switchSubscribed = ref
1226+ , switchSubscribed = unsafeNewIORef a Nothing
1282coincidence :: HasSpiderTimeline x => Event x (Event x a) -> Event x a
1229coincidence :: HasSpiderTimeline x => Event x (Event x a) -> Event x a
1283−coincidence a = unsafePerformIO $ do
1284− ref <- newIORef Nothing
1285− pure $ eventCoincidence $ Coincidence
1230+coincidence a = eventCoincidence $ Coincidence
1286− { coincidenceParent = a
1231+ { coincidenceParent = a
1287− , coincidenceSubscribed = ref
1232+ , coincidenceSubscribed = unsafeNewIORef a Nothing
1290-- Propagate the given event occurrence; before cleaning up, run the given action, which may read the state of events and behaviors
1235-- Propagate the given event occurrence; before cleaning up, run the given action, which may read the state of events and behaviors
1291run :: forall x b. HasSpiderTimeline x => [DSum (RootTrigger x) Identity] -> ResultM x b -> SpiderHost x b
1236run :: forall x b. HasSpiderTimeline x => [DSum (RootTrigger x) Identity] -> ResultM x b -> SpiderHost x b
1292run roots after = do
1237run roots after = do
1293 tracePropagate (Proxy :: Proxy x) $ "Running an event frame with " <> show (length roots) <> " events"
1238 tracePropagate (Proxy :: Proxy x) $ "Running an event frame with " <> show (length roots) <> " events"
1294− let t = spiderTimeline :: SpiderTimelineEnv x
1239+ t <- SpiderHost ask
1295− result <- SpiderHost $ withMVar (_spiderTimeline_lock (unSTE t)) $ \_ -> unSpiderHost $ runFrame $ do
1240+ result <- SpiderHost $ lift $ withMVar (_spiderTimeline_lock t) $ \_ -> flip runReaderT t $ unSpiderHost $ runFrame $ do
1296 rootsToPropagate <- forM roots $ \r@(RootTrigger (_, occRef, k) :=> a) -> do
1241 rootsToPropagate <- forM roots $ \r@(RootTrigger (_, occRef, k) :=> a) -> do
1297 occBefore <- liftIO $ do
1242 occBefore <- liftIO $ do
1298 occBefore <- readIORef occRef
1243 occBefore <- readIORef occRef
@@ -1330,11 +1275,11 @@ scheduleMerge' initialHeight heightRef a = scheduleMerge initialHeight $ do
1330 GT -> scheduleMerge' height heightRef a -- The height has been increased (by a coincidence event; TODO: is this the only way?)
1275 GT -> scheduleMerge' height heightRef a -- The height has been increased (by a coincidence event; TODO: is this the only way?)
1333−newtype Clear a = Clear (IORef (Maybe a))
1278+data SomeClear = forall a. SomeClear {-# UNPACK #-} !(IORef (Maybe a))
1335−newtype IntClear a = IntClear (IORef (IntMap a))
1280+data SomeIntClear = forall a. SomeIntClear {-# UNPACK #-} !(IORef (IntMap a))
1337−newtype RootClear k = RootClear (IORef (DMap k Identity))
1282+data SomeRootClear = forall k. SomeRootClear {-# UNPACK #-} !(IORef (DMap k Identity))
1339data SomeAssignment x = forall a. SomeAssignment {-# UNPACK #-} !(IORef a) {-# UNPACK #-} !(IORef [Weak (Invalidator x)]) a
1284data SomeAssignment x = forall a. SomeAssignment {-# UNPACK #-} !(IORef a) {-# UNPACK #-} !(IORef [Weak (Invalidator x)]) a
@@ -1346,110 +1291,55 @@ mkWeakPtrWithDebug x debugNote = do
1346 x' <- evaluate x
1291 x' <- evaluate x
1347 mkWeakPtr x' $
1292 mkWeakPtr x' $
1348 if debugFinalize
1293 if debugFinalize
1349− then Just $ debugStrLn $ "finalizing: " ++ debugNote
1294+ then Just $ putStrLn $ "finalizing: " ++ debugNote
1350 else Nothing
1295 else Nothing
1352type WeakList a = [Weak a]
1297type WeakList a = [Weak a]
1354−type CanTrace x m = (HasSpiderTimeline x, MonadIO m)
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"
1381{-# INLINE withIncreasedDepth #-}
1299{-# INLINE withIncreasedDepth #-}
1382−withIncreasedDepth :: forall proxy x m a. CanTrace x m => proxy x -> m a -> m a
1301+withIncreasedDepth :: CanTrace x m => m a -> m a
1383−withIncreasedDepth _ a = do
1302+withIncreasedDepth a = do
1303+ spiderTimeline <- askSpiderTimelineEnv
1384− liftIO $ modifyIORef' (_spiderTimeline_depth $ unSTE (spiderTimeline :: SpiderTimelineEnv x)) succ
1304+ liftIO $ modifyIORef' (_spiderTimeline_depth spiderTimeline) succ
1385 result <- a
1305 result <- a
1386− liftIO $ modifyIORef' (_spiderTimeline_depth $ unSTE (spiderTimeline :: SpiderTimelineEnv x)) pred
1306+ liftIO $ modifyIORef' (_spiderTimeline_depth spiderTimeline) pred
1387 return result
1307 return result
1389−{-# INLINE tracePropagate #-}
1390−tracePropagate :: (CanTrace x m) => proxy x -> String -> m ()
1391−tracePropagate p = when debugPropagate . trace p
1393−{-# INLINE traceInvalidate #-}
1394−traceInvalidate :: String -> IO ()
1395−traceInvalidate = when debugInvalidate . liftIO . debugStrLn
1397−{-# INLINE traceInvalidateHeight #-}
1398−traceInvalidateHeight :: String -> IO ()
1399−traceInvalidateHeight = when debugInvalidateHeight . liftIO . debugStrLn
1401−{-# INLINE trace #-}
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 ()
1407−traceM _ getMessage = do
1408− message <- getMessage
1409− d <- liftIO $ readIORef $ _spiderTimeline_depth $ unSTE (spiderTimeline :: SpiderTimelineEnv x)
1410− liftIO $ debugStrLn $ replicate d ' ' <> message
1309+withIncreasedDepth :: m a -> m a
1310+withIncreasedDepth = id
1414−{-# INLINE withIncreasedDepth #-}
1313+type CanTrace x m = (HasSpiderTimeline x, MonadIO m)
1415−withIncreasedDepth :: proxy x -> m a -> m a
1416−withIncreasedDepth _ = id
1418{-# INLINE tracePropagate #-}
1315{-# INLINE tracePropagate #-}
1419tracePropagate :: (CanTrace x m) => proxy x -> String -> m ()
1316tracePropagate :: (CanTrace x m) => proxy x -> String -> m ()
1420−tracePropagate _ _ = return ()
1317+tracePropagate p = traceWhen p debugPropagate
1422{-# INLINE traceInvalidate #-}
1319{-# INLINE traceInvalidate #-}
1423traceInvalidate :: String -> IO ()
1320traceInvalidate :: String -> IO ()
1424−traceInvalidate _ = return ()
1321+traceInvalidate = when debugInvalidate . liftIO . putStrLn
1426−{-# INLINE traceInvalidateHeight #-}
1323+{-# INLINE traceWhen #-}
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 ()
1324+traceWhen :: (CanTrace x m) => proxy x -> Bool -> String -> m ()
1442−trace _ _ = return ()
1325+traceWhen p b message = traceMWhen p b $ return message
1444−{-# INLINE traceM #-}
1445−traceM :: (CanTrace x m) => proxy x -> m String -> m ()
1446−traceM _ _ = return ()
1327+{-# INLINE traceMWhen #-}
1328+traceMWhen :: (CanTrace x m) => proxy x -> Bool -> m String -> m ()
1329+traceMWhen _ b getMessage = when b $ do
1330+ message <- getMessage
1332+ spiderTimeline <- askSpiderTimelineEnv
1333+ d <- liftIO $ readIORef $ _spiderTimeline_depth spiderTimeline
1337+ liftIO $ putStrLn $ replicate d ' ' <> message
1450whoCreatedIORef :: IORef a -> IO [String]
1339whoCreatedIORef :: IORef a -> IO [String]
1451whoCreatedIORef (IORef a) = whoCreated $! a
1340whoCreatedIORef (IORef a) = whoCreated $! a
1453groupByHead :: Eq a => [NonEmpty a] -> [(a, NonEmpty [a])]
1343groupByHead :: Eq a => [NonEmpty a] -> [(a, NonEmpty [a])]
1454groupByHead = \case
1344groupByHead = \case
1455 [] -> []
1345 [] -> []
@@ -1460,54 +1350,20 @@ groupByHead = \case
1460 | otherwise -> (x, xs :| []) : l
1350 | otherwise -> (x, xs :| []) : l
1462listsToForest :: Eq a => [[a]] -> Forest a
1352listsToForest :: Eq a => [[a]] -> Forest a
1463−listsToForest lists = buildForest <$> groupByHead (mapMaybe nonEmpty lists)
1353+listsToForest l = fmap (\(a, l') -> Node a $ listsToForest $ toList l') $ groupByHead $ catMaybes $ fmap nonEmpty l
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"
1498{-# INLINE propagateSubscriberHold #-}
1356{-# INLINE propagateSubscriberHold #-}
1499propagateSubscriberHold :: forall x p. (HasSpiderTimeline x, Patch p) => Hold x p -> p -> EventM x ()
1357propagateSubscriberHold :: forall x p. (HasSpiderTimeline x, Patch p) => Hold x p -> p -> EventM x ()
1500propagateSubscriberHold h a = do
1358propagateSubscriberHold h a = do
1501− {-# SCC "trace" #-} when debugPropagate $ traceM (Proxy :: Proxy x) $ liftIO $ do
1359+ {-# SCC "trace" #-} traceMWhen (Proxy :: Proxy x) debugPropagate $ liftIO $ do
1502 invalidators <- liftIO $ readIORef $ holdInvalidators h
1360 invalidators <- liftIO $ readIORef $ holdInvalidators h
1503 return $ "SubscriberHold" <> showNodeId h <> ": " ++ show (length invalidators)
1361 return $ "SubscriberHold" <> showNodeId h <> ": " ++ show (length invalidators)
1505 v <- {-# SCC "read" #-} liftIO $ readIORef $ holdValue h
1362 v <- {-# SCC "read" #-} liftIO $ readIORef $ holdValue h
1506 case {-# SCC "apply" #-} apply a v of
1363 case {-# SCC "apply" #-} apply a v of
1507 Nothing -> return ()
1364 Nothing -> return ()
1508 Just v' -> do
1365 Just v' -> do
1509− {-# SCC "trace2" #-} withIncreasedDepth (Proxy :: Proxy x) $
1510− tracePropagate (Proxy :: Proxy x) ("propagateSubscriberHold: assigning Hold" <> showNodeId h)
1366+ {-# SCC "trace2" #-} withIncreasedDepth $ tracePropagate (Proxy :: Proxy x) $ "propagateSubscriberHold: assigning Hold" <> showNodeId h
1511 vRef <- {-# SCC "vRef" #-} liftIO $ evaluate $ holdValue h
1367 vRef <- {-# SCC "vRef" #-} liftIO $ evaluate $ holdValue h
1512 iRef <- {-# SCC "iRef" #-} liftIO $ evaluate $ holdInvalidators h
1368 iRef <- {-# SCC "iRef" #-} liftIO $ evaluate $ holdInvalidators h
1513 defer $ {-# SCC "assignment" #-} SomeAssignment vRef iRef v'
1369 defer $ {-# SCC "assignment" #-} SomeAssignment vRef iRef v'
@@ -1515,25 +1371,25 @@ propagateSubscriberHold h a = do
1515data SomeResetCoincidence x = forall a. SomeResetCoincidence !(EventSubscription x) !(Maybe (CoincidenceSubscribed x a)) -- The CoincidenceSubscriber will be present only if heights need to be reset
1371data SomeResetCoincidence x = forall a. SomeResetCoincidence !(EventSubscription x) !(Maybe (CoincidenceSubscribed x a)) -- The CoincidenceSubscriber will be present only if heights need to be reset
1517runBehaviorM :: BehaviorM x a -> Maybe (Weak (Invalidator x), IORef [SomeBehaviorSubscribed x]) -> IORef [SomeHoldInit x] -> IO a
1373runBehaviorM :: BehaviorM x a -> Maybe (Weak (Invalidator x), IORef [SomeBehaviorSubscribed x]) -> IORef [SomeHoldInit x] -> IO a
1518−runBehaviorM a mwi holdInits = runReaderIO (unBehaviorM a) (mwi, holdInits)
1374+runBehaviorM a mwi holdInits = runReaderT (unBehaviorM a) (mwi, holdInits)
1520askInvalidator :: BehaviorM x (Maybe (Weak (Invalidator x)))
1376askInvalidator :: BehaviorM x (Maybe (Weak (Invalidator x)))
1521askInvalidator = do
1377askInvalidator = do
1522− (!m, _) <- ask
1378+ (!m, _) <- BehaviorM ask
1523 case m of
1379 case m of
1524 Nothing -> return Nothing
1380 Nothing -> return Nothing
1525 Just (!wi, _) -> return $ Just wi
1381 Just (!wi, _) -> return $ Just wi
1527askParentsRef :: BehaviorM x (Maybe (IORef [SomeBehaviorSubscribed x]))
1383askParentsRef :: BehaviorM x (Maybe (IORef [SomeBehaviorSubscribed x]))
1528askParentsRef = do
1384askParentsRef = do
1529− (!m, _) <- ask
1385+ (!m, _) <- BehaviorM ask
1530 case m of
1386 case m of
1531 Nothing -> return Nothing
1387 Nothing -> return Nothing
1532 Just (_, !p) -> return $ Just p
1388 Just (_, !p) -> return $ Just p
1534askBehaviorHoldInits :: BehaviorM x (IORef [SomeHoldInit x])
1390askBehaviorHoldInits :: BehaviorM x (IORef [SomeHoldInit x])
1535askBehaviorHoldInits = do
1391askBehaviorHoldInits = do
1536− (_, !his) <- ask
1392+ (_, !his) <- BehaviorM ask
1537 return his
1393 return his
1539{-# INLINE getDynHold #-}
1395{-# INLINE getDynHold #-}
@@ -1541,27 +1397,20 @@ getDynHold :: (Defer (SomeHoldInit x) m, Patch p) => Dyn x p -> m (Hold x p)
1541getDynHold d = do
1397getDynHold d = do
1542 mh <- liftIO $ readIORef $ unDyn d
1398 mh <- liftIO $ readIORef $ unDyn d
1543 case mh of
1399 case mh of
1544− HoldDyn h -> return h
1400+ Right h -> return h
1545− UnsafeDyn (readV0, v') -> do
1401+ Left (readV0, v') -> do
1546 holdInits <- getDeferralQueue
1402 holdInits <- getDeferralQueue
1547 v0 <- liftIO $ runBehaviorM readV0 Nothing holdInits
1403 v0 <- liftIO $ runBehaviorM readV0 Nothing holdInits
1549− BuildDyn (readV0, v') -> do
1550− v0 <- liftIO $ runEventM readV0
1554 h <- hold v0 v'
1404 h <- hold v0 v'
1555− liftIO $ writeIORef (unDyn d) $ HoldDyn h
1405+ liftIO $ writeIORef (unDyn d) $ Right h
1556 return h
1406 return h
1559-- Always refers to 0
1408-- Always refers to 0
1560{-# NOINLINE zeroRef #-}
1409{-# NOINLINE zeroRef #-}
1561zeroRef :: IORef Height
1410zeroRef :: IORef Height
1562zeroRef = unsafePerformIO $ newIORef zeroHeight
1411zeroRef = unsafePerformIO $ newIORef zeroHeight
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)
1413+getRootSubscribed :: GCompare k => k a -> Root x k -> Subscriber x a -> IO (WeakBagTicket, RootSubscribed x a, Maybe a)
1565getRootSubscribed k r sub = do
1414getRootSubscribed k r sub = do
1566 mSubscribed <- readIORef $ rootSubscribed r
1415 mSubscribed <- readIORef $ rootSubscribed r
1567 let getOcc = fmap (coerce . DMap.lookup k) $ readIORef $ rootOccurrence r
1416 let getOcc = fmap (coerce . DMap.lookup k) $ readIORef $ rootOccurrence r
@@ -1575,14 +1424,9 @@ getRootSubscribed k r sub = do
1575 let !cached = rootSubscribed r
1424 let !cached = rootSubscribed r
1576 uninitRef <- newIORef $ error "getRootsubscribed: uninitRef not initialized"
1425 uninitRef <- newIORef $ error "getRootsubscribed: uninitRef not initialized"
1577 (subs, sln) <- WeakBag.singleton sub weakSelf cleanupRootSubscribed
1426 (subs, sln) <- WeakBag.singleton sub weakSelf cleanupRootSubscribed
1579− tracePropagate (Proxy::Proxy x) $ "getRootSubscribed: calling rootInit"
1427+ when debugPropagate $ putStrLn $ "getRootSubscribed: calling rootInit"
1581 uninit <- rootInit r k $ RootTrigger (subs, rootOccurrence r, k)
1428 uninit <- rootInit r k $ RootTrigger (subs, rootOccurrence r, k)
1582 writeIORef uninitRef $! uninit
1429 writeIORef uninitRef $! uninit
1583−#ifdef DEBUG_NODEIDS
1586 let !subscribed = RootSubscribed
1430 let !subscribed = RootSubscribed
1587 { rootSubscribedKey = k
1431 { rootSubscribedKey = k
1588 , rootSubscribedCachedSubscribed = cached
1432 , rootSubscribedCachedSubscribed = cached
@@ -1591,7 +1435,7 @@ getRootSubscribed k r sub = do
1591 , rootSubscribedUninit = uninit
1435 , rootSubscribedUninit = uninit
1592 , rootSubscribedWeakSelf = weakSelf
1436 , rootSubscribedWeakSelf = weakSelf
1593#ifdef DEBUG_NODEIDS
1437#ifdef DEBUG_NODEIDS
1594− , rootSubscribedNodeId = nid
1438+ , rootSubscribedNodeId = unsafeNodeId (k, r, subs)
1597 -- If we die at the same moment that all our children die, they will
1441 -- If we die at the same moment that all our children die, they will
@@ -1627,9 +1471,6 @@ data FanInt x a = FanInt
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
1471 { _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
1628 , _fanInt_subscriptionRef :: {-# UNPACK #-} !(IORef (EventSubscription x)) -- This should have a valid subscription iff subscribers is non-empty
1472 , _fanInt_subscriptionRef :: {-# UNPACK #-} !(IORef (EventSubscription x)) -- This should have a valid subscription iff subscribers is non-empty
1629 , _fanInt_occRef :: {-# UNPACK #-} !(IORef (IntMap a))
1473 , _fanInt_occRef :: {-# UNPACK #-} !(IORef (IntMap a))
1630−#ifdef DEBUG_NODEIDS
1631− , _fanInt_nodeId :: {-# UNPACK #-} !Int
1635newFanInt :: IO (FanInt x a)
1476newFanInt :: IO (FanInt x a)
@@ -1637,39 +1478,38 @@ newFanInt = do
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
1478 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
1638 subscriptionRef <- newIORef $ error "fanInt: no subscription"
1479 subscriptionRef <- newIORef $ error "fanInt: no subscription"
1639 occRef <- newIORef $ error "fanInt: no occurrence"
1480 occRef <- newIORef $ error "fanInt: no occurrence"
1640−#ifdef DEBUG_NODEIDS
1641− nodeId <- newNodeId
1643 return $ FanInt
1481 return $ FanInt
1644 { _fanInt_subscribers = subscribers
1482 { _fanInt_subscribers = subscribers
1645 , _fanInt_subscriptionRef = subscriptionRef
1483 , _fanInt_subscriptionRef = subscriptionRef
1646 , _fanInt_occRef = occRef
1484 , _fanInt_occRef = occRef
1647−#ifdef DEBUG_NODEIDS
1648− , _fanInt_nodeId = nodeId
1487+{-# NOINLINE unsafeNewFanInt #-}
1488+unsafeNewFanInt :: b -> FanInt x a
1489+unsafeNewFanInt b = unsafePerformIO $ do
1652fanInt :: HasSpiderTimeline x => Event x (IntMap a) -> EventSelectorInt x a
1493fanInt :: HasSpiderTimeline x => Event x (IntMap a) -> EventSelectorInt x a
1653−fanInt p = unsafePerformIO $ do
1494+fanInt p =
1654− self <- newFanInt
1495+ let self = unsafeNewFanInt p
1655− pure $ EventSelectorInt $ \k -> Event $ \sub -> do
1496+ in EventSelectorInt $ \k -> Event $ \sub -> do
1656 isEmpty <- liftIO $ FastMutableIntMap.isEmpty (_fanInt_subscribers self)
1497 isEmpty <- liftIO $ FastMutableIntMap.isEmpty (_fanInt_subscribers self)
1657 when isEmpty $ do -- This is the first subscriber, so we need to subscribe to our input
1498 when isEmpty $ do -- This is the first subscriber, so we need to subscribe to our input
1658− let desc = "fanInt" <> showNodeId self <> ", k = " <> show k
1659− (subscription, parentOcc) <- subscribeAndRead p $ debugSubscriber' desc $ Subscriber
1499+ (subscription, parentOcc) <- subscribeAndRead p $ Subscriber
1660 { subscriberPropagate = \m -> do
1500 { subscriberPropagate = \m -> do
1661 liftIO $ writeIORef (_fanInt_occRef self) m
1501 liftIO $ writeIORef (_fanInt_occRef self) m
1662 scheduleIntClear $ _fanInt_occRef self
1502 scheduleIntClear $ _fanInt_occRef self
1663− FastMutableIntMap.forIntersectionWithImmutable_ (_fanInt_subscribers self) m $ \b v -> --TODO: Do we need to know that no subscribers are being added as we traverse?
1503+ FastMutableIntMap.forIntersectionWithImmutable_ (_fanInt_subscribers self) m $ \b v -> do --TODO: Do we need to know that no subscribers are being added as we traverse?
1664− FastWeakBag.traverse_ b $ \s ->
1504+ FastWeakBag.traverse b $ \s -> do
1665 subscriberPropagate s v
1505 subscriberPropagate s v
1666− , subscriberInvalidateHeight = \old ->
1506+ , subscriberInvalidateHeight = \old -> do
1667− FastMutableIntMap.for_ (_fanInt_subscribers self) $ \b ->
1507+ FastMutableIntMap.for_ (_fanInt_subscribers self) $ \b -> do
1668− FastWeakBag.traverse_ b $ \s ->
1508+ FastWeakBag.traverse b $ \s -> do
1669 subscriberInvalidateHeight s old
1509 subscriberInvalidateHeight s old
1670− , subscriberRecalculateHeight = \new ->
1510+ , subscriberRecalculateHeight = \new -> do
1671− FastMutableIntMap.for_ (_fanInt_subscribers self) $ \b ->
1511+ FastMutableIntMap.for_ (_fanInt_subscribers self) $ \b -> do
1672− FastWeakBag.traverse_ b $ \s ->
1512+ FastWeakBag.traverse b $ \s -> do
1673 subscriberRecalculateHeight s new
1513 subscriberRecalculateHeight s new
1675 liftIO $ do
1515 liftIO $ do
@@ -1683,28 +1523,13 @@ fanInt p = unsafePerformIO $ do
1683 FastMutableIntMap.insert (_fanInt_subscribers self) k b
1523 FastMutableIntMap.insert (_fanInt_subscribers self) k b
1684 return b
1524 return b
1685 Just b -> return b
1525 Just b -> return b
1686− ticket <- liftIO $ FastWeakBag.insert sub b
1526+ t <- liftIO $ FastWeakBag.insert sub b
1687 currentOcc <- readIORef (_fanInt_occRef self)
1527 currentOcc <- readIORef (_fanInt_occRef self)
1688−
1528+ (EventSubscription _ (EventSubscribed !heightRef _)) <- readIORef (_fanInt_subscriptionRef self)
1689− subscribed <- fanIntSubscribed ticket self
1690− return (EventSubscription (FastWeakBag.remove ticket) subscribed, IntMap.lookup k currentOcc)
1529+ return (EventSubscription (FastWeakBag.remove t) $! EventSubscribed heightRef $! toAny (_fanInt_subscriptionRef self, t), IntMap.lookup k currentOcc)
1692−fanIntSubscribed :: FastWeakBagTicket k -> FanInt x a -> IO (EventSubscribed x)
1693−fanIntSubscribed ticket self = do
1694− subscribedParent <- _eventSubscription_subscribed <$> 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
1706{-# INLINABLE getFanSubscribed #-}
1531{-# INLINABLE getFanSubscribed #-}
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))
1532+getFanSubscribed :: (HasSpiderTimeline x, GCompare k) => k a -> Fan x k -> Subscriber x a -> EventM x (WeakBagTicket, FanSubscribed x k, Maybe a)
1708getFanSubscribed k f sub = do
1533getFanSubscribed k f sub = do
1709 mSubscribed <- liftIO $ readIORef $ fanSubscribed f
1534 mSubscribed <- liftIO $ readIORef $ fanSubscribed f
1710 case mSubscribed of
1535 case mSubscribed of
@@ -1722,16 +1547,13 @@ getFanSubscribed k f sub = do
1722 subscribersRef <- liftIO $ newIORef $ error "getFanSubscribed: subscribersRef not yet initialized"
1547 subscribersRef <- liftIO $ newIORef $ error "getFanSubscribed: subscribersRef not yet initialized"
1723 occRef <- liftIO $ newIORef parentOcc
1548 occRef <- liftIO $ newIORef parentOcc
1724 when (isJust parentOcc) $ scheduleClear occRef
1549 when (isJust parentOcc) $ scheduleClear occRef
1725−#ifdef DEBUG_NODEIDS
1726− nid <- liftIO newNodeId
1728 let subscribed = FanSubscribed
1550 let subscribed = FanSubscribed
1729 { fanSubscribedCachedSubscribed = fanSubscribed f
1551 { fanSubscribedCachedSubscribed = fanSubscribed f
1730 , fanSubscribedOccurrence = occRef
1552 , fanSubscribedOccurrence = occRef
1731 , fanSubscribedParent = subscription
1553 , fanSubscribedParent = subscription
1732 , fanSubscribedSubscribers = subscribersRef
1554 , fanSubscribedSubscribers = subscribersRef
1733#ifdef DEBUG_NODEIDS
1555#ifdef DEBUG_NODEIDS
1734− , fanSubscribedNodeId = nid
1556+ , fanSubscribedNodeId = unsafeNodeId f
1737 let !self = (k, subscribed)
1559 let !self = (k, subscribed)
@@ -1741,7 +1563,7 @@ getFanSubscribed k f sub = do
1741 liftIO $ writeIORef (fanSubscribed f) $ Just subscribed
1563 liftIO $ writeIORef (fanSubscribed f) $ Just subscribed
1742 return (slnForSub, subscribed, coerce $ DMap.lookup k =<< parentOcc)
1564 return (slnForSub, subscribed, coerce $ DMap.lookup k =<< parentOcc)
1744−cleanupFanSubscribed :: GCompare k => (k a, FanSubscribed x k v) -> IO ()
1566+cleanupFanSubscribed :: GCompare k => (k a, FanSubscribed x k) -> IO ()
1745cleanupFanSubscribed (k, subscribed) = do
1567cleanupFanSubscribed (k, subscribed) = do
1746 subscribers <- readIORef $ fanSubscribedSubscribers subscribed
1568 subscribers <- readIORef $ fanSubscribedSubscribers subscribed
1747 let reducedSubscribers = DMap.delete k subscribers
1569 let reducedSubscribers = DMap.delete k subscribers
@@ -1753,7 +1575,7 @@ cleanupFanSubscribed (k, subscribed) = do
1753 else writeIORef (fanSubscribedSubscribers subscribed) $! reducedSubscribers
1575 else writeIORef (fanSubscribedSubscribers subscribed) $! reducedSubscribers
1755{-# INLINE subscribeFanSubscribed #-}
1577{-# INLINE subscribeFanSubscribed #-}
1756−subscribeFanSubscribed :: GCompare k => k a -> FanSubscribed x k v -> Subscriber x (v a) -> IO WeakBagTicket
1578+subscribeFanSubscribed :: GCompare k => k a -> FanSubscribed x k -> Subscriber x a -> IO WeakBagTicket
1757subscribeFanSubscribed k subscribed sub = do
1579subscribeFanSubscribed k subscribed sub = do
1758 subscribers <- readIORef $ fanSubscribedSubscribers subscribed
1580 subscribers <- readIORef $ fanSubscribedSubscribers subscribed
1759 case DMap.lookup k subscribers of
1581 case DMap.lookup k subscribers of
@@ -1791,9 +1613,6 @@ getSwitchSubscribed s sub = do
1791 when (isJust parentOcc) $ scheduleClear occRef
1613 when (isJust parentOcc) $ scheduleClear occRef
1792 weakSelf <- liftIO $ newIORef $ error "getSwitchSubscribed: weakSelf not yet initialized"
1614 weakSelf <- liftIO $ newIORef $ error "getSwitchSubscribed: weakSelf not yet initialized"
1793 (subs, slnForSub) <- liftIO $ WeakBag.singleton sub weakSelf cleanupSwitchSubscribed
1615 (subs, slnForSub) <- liftIO $ WeakBag.singleton sub weakSelf cleanupSwitchSubscribed
1794−#ifdef DEBUG_NODEIDS
1795− nid <- liftIO newNodeId
1797 let !subscribed = SwitchSubscribed
1616 let !subscribed = SwitchSubscribed
1798 { switchSubscribedCachedSubscribed = switchSubscribed s
1617 { switchSubscribedCachedSubscribed = switchSubscribed s
1799 , switchSubscribedOccurrence = occRef
1618 , switchSubscribedOccurrence = occRef
@@ -1806,7 +1625,7 @@ getSwitchSubscribed s sub = do
1806 , switchSubscribedCurrentParent = subscriptionRef
1625 , switchSubscribedCurrentParent = subscriptionRef
1807 , switchSubscribedWeakSelf = weakSelf
1626 , switchSubscribedWeakSelf = weakSelf
1808#ifdef DEBUG_NODEIDS
1627#ifdef DEBUG_NODEIDS
1809− , switchSubscribedNodeId = nid
1628+ , switchSubscribedNodeId = unsafeNodeId s
1812 liftIO $ writeIORef weakSelf =<< evaluate =<< mkWeakPtrWithDebug subscribed "switchSubscribedWeakSelf"
1631 liftIO $ writeIORef weakSelf =<< evaluate =<< mkWeakPtrWithDebug subscribed "switchSubscribedWeakSelf"
@@ -1851,9 +1670,6 @@ getCoincidenceSubscribed c sub = do
1851 scheduleClear innerSubdRef
1670 scheduleClear innerSubdRef
1852 weakSelf <- liftIO $ newIORef $ error "getCoincidenceSubscribed: weakSelf not yet implemented"
1671 weakSelf <- liftIO $ newIORef $ error "getCoincidenceSubscribed: weakSelf not yet implemented"
1853 (subs, slnForSub) <- liftIO $ WeakBag.singleton sub weakSelf cleanupCoincidenceSubscribed
1672 (subs, slnForSub) <- liftIO $ WeakBag.singleton sub weakSelf cleanupCoincidenceSubscribed
1854−#ifdef DEBUG_NODEIDS
1855− nid <- liftIO newNodeId
1857 let subscribed = CoincidenceSubscribed
1673 let subscribed = CoincidenceSubscribed
1858 { coincidenceSubscribedCachedSubscribed = coincidenceSubscribed c
1674 { coincidenceSubscribedCachedSubscribed = coincidenceSubscribed c
1859 , coincidenceSubscribedOccurrence = occRef
1675 , coincidenceSubscribedOccurrence = occRef
@@ -1864,7 +1680,7 @@ getCoincidenceSubscribed c sub = do
1864 , coincidenceSubscribedInnerParent = innerSubdRef
1680 , coincidenceSubscribedInnerParent = innerSubdRef
1865 , coincidenceSubscribedWeakSelf = weakSelf
1681 , coincidenceSubscribedWeakSelf = weakSelf
1866#ifdef DEBUG_NODEIDS
1682#ifdef DEBUG_NODEIDS
1867− , coincidenceSubscribedNodeId = nid
1683+ , coincidenceSubscribedNodeId = unsafeNodeId c
1870 liftIO $ writeIORef weakSelf =<< evaluate =<< mkWeakPtrWithDebug subscribed "CoincidenceSubscribed"
1686 liftIO $ writeIORef weakSelf =<< evaluate =<< mkWeakPtrWithDebug subscribed "CoincidenceSubscribed"
@@ -1881,72 +1697,57 @@ cleanupCoincidenceSubscribed subscribed = do
1881subscribeCoincidenceSubscribed :: CoincidenceSubscribed x a -> Subscriber x a -> IO WeakBagTicket
1697subscribeCoincidenceSubscribed :: CoincidenceSubscribed x a -> Subscriber x a -> IO WeakBagTicket
1882subscribeCoincidenceSubscribed subscribed sub = WeakBag.insert sub (coincidenceSubscribedSubscribers subscribed) (coincidenceSubscribedWeakSelf subscribed) cleanupCoincidenceSubscribed
1698subscribeCoincidenceSubscribed subscribed sub = WeakBag.insert sub (coincidenceSubscribedSubscribers subscribed) (coincidenceSubscribedWeakSelf subscribed) cleanupCoincidenceSubscribed
1884−{-# INLINE mergeG #-}
1700+{-# INLINE merge #-}
1885−mergeG :: forall k q x v. (HasSpiderTimeline x, GCompare k)
1701+merge :: forall k x. (HasSpiderTimeline x, GCompare k) => Dynamic x (PatchDMap k (Event x)) -> Event x (DMap k Identity)
1886− => (forall a. q a -> Event x (v a))
1887− -> DynamicS x (PatchDMap k q) -> Event x (DMap k v)
1888−mergeG nt d = cacheEvent (mergeCheap nt d)
1702+merge d = cacheEvent (mergeCheap d)
1890{-# INLINE mergeWithMove #-}
1704{-# INLINE mergeWithMove #-}
1891−mergeWithMove :: forall k v q x. (HasSpiderTimeline x, GCompare k)
1705+mergeWithMove :: forall k x. (HasSpiderTimeline x, GCompare k) => Dynamic x (PatchDMapWithMove k (Event x)) -> Event x (DMap k Identity)
1892− => (forall a. q a -> Event x (v a))
1893− -> DynamicS x (PatchDMapWithMove k q) -> Event x (DMap k v)
1894−mergeWithMove nt d = cacheEvent (mergeCheapWithMove nt d)
1706+mergeWithMove d = cacheEvent (mergeCheapWithMove d)
1896{-# INLINE [1] mergeCheap #-}
1708{-# INLINE [1] mergeCheap #-}
1898− :: forall k x q v. (HasSpiderTimeline x, GCompare k)
1709+mergeCheap :: forall k x. (HasSpiderTimeline x, GCompare k) => Dynamic x (PatchDMap k (Event x)) -> Event x (DMap k Identity)
1899− => (forall a. q a -> Event x (v a))
1900− -> DynamicS x (PatchDMap k q)
1901− -> Event x (DMap k v)
1902−mergeCheap nt = mergeGCheap' unMergeSubscribedParent getInitialSubscribers updateMe destroy
1710+mergeCheap = mergeCheap' getInitialSubscribers updateMe destroy
1904− updateMe :: MergeUpdateFunc k v x (PatchDMap k q) (MergeSubscribedParent x)
1712+ updateMe :: MergeUpdateFunc k x (PatchDMap k (Event x)) (MergeSubscribedParent x)
1905 updateMe subscriber heightBagRef oldParents (PatchDMap p) = do
1713 updateMe subscriber heightBagRef oldParents (PatchDMap p) = do
1906 let f (subscriptionsToKill, ps) (k :=> ComposeMaybe me) = do
1714 let f (subscriptionsToKill, ps) (k :=> ComposeMaybe me) = do
1907 (mOldSubd, newPs) <- case me of
1715 (mOldSubd, newPs) <- case me of
1908 Nothing -> return $ DMap.updateLookupWithKey (\_ _ -> Nothing) k ps
1716 Nothing -> return $ DMap.updateLookupWithKey (\_ _ -> Nothing) k ps
1909 Just e -> do
1717 Just e -> do
1910 let s = subscriber $ return k
1718 let s = subscriber $ return k
1911− subscription@(EventSubscription _ subd) <- subscribe (nt e) s
1719+ subscription@(EventSubscription _ subd) <- subscribe e s
1912 newParentHeight <- liftIO $ getEventSubscribedHeight subd
1720 newParentHeight <- liftIO $ getEventSubscribedHeight subd
1913 let newParent = MergeSubscribedParent subscription
1721 let newParent = MergeSubscribedParent subscription
1914 liftIO $ modifyIORef' heightBagRef $ heightBagAdd newParentHeight
1722 liftIO $ modifyIORef' heightBagRef $ heightBagAdd newParentHeight
1915 return $ DMap.insertLookupWithKey' (\_ new _ -> new) k newParent ps
1723 return $ DMap.insertLookupWithKey' (\_ new _ -> new) k newParent ps
1916 forM_ mOldSubd $ \oldSubd -> do
1724 forM_ mOldSubd $ \oldSubd -> do
1917− oldHeight <- liftIO $ getEventSubscribedHeight $
1918− _eventSubscription_subscribed $ unMergeSubscribedParent oldSubd
1725+ oldHeight <- liftIO $ getEventSubscribedHeight $ _eventSubscription_subscribed $ unMergeSubscribedParent oldSubd
1920 liftIO $ modifyIORef heightBagRef $ heightBagRemove oldHeight
1726 liftIO $ modifyIORef heightBagRef $ heightBagRemove oldHeight
1921 return (maybeToList (unMergeSubscribedParent <$> mOldSubd) ++ subscriptionsToKill, newPs)
1727 return (maybeToList (unMergeSubscribedParent <$> mOldSubd) ++ subscriptionsToKill, newPs)
1922 foldM f ([], oldParents) $ DMap.toList p
1728 foldM f ([], oldParents) $ DMap.toList p
1924− getInitialSubscribers :: MergeInitFunc k v q x (MergeSubscribedParent x)
1729+ getInitialSubscribers :: MergeInitFunc k x (MergeSubscribedParent x)
1925 getInitialSubscribers initialParents subscriber = do
1730 getInitialSubscribers initialParents subscriber = do
1926 subscribers <- forM (DMap.toList initialParents) $ \(k :=> e) -> do
1731 subscribers <- forM (DMap.toList initialParents) $ \(k :=> e) -> do
1927 let s = subscriber $ return k
1732 let s = subscriber $ return k
1928− (subscription@(EventSubscription _ parentSubd), parentOcc) <- subscribeAndRead (nt e) s
1733+ (subscription@(EventSubscription _ parentSubd), parentOcc) <- subscribeAndRead e s
1929 height <- liftIO $ getEventSubscribedHeight parentSubd
1734 height <- liftIO $ getEventSubscribedHeight parentSubd
1930− return (fmap (k :=>) parentOcc, height, k :=> MergeSubscribedParent subscription)
1735+ return (fmap (\x -> k :=> Identity x) parentOcc, height, k :=> MergeSubscribedParent subscription)
1931 return ( DMap.fromDistinctAscList $ mapMaybe (\(x, _, _) -> x) subscribers
1736 return ( DMap.fromDistinctAscList $ mapMaybe (\(x, _, _) -> x) subscribers
1932 , fmap (\(_, h, _) -> h) subscribers --TODO: Assert that there's no invalidHeight in here
1737 , fmap (\(_, h, _) -> h) subscribers --TODO: Assert that there's no invalidHeight in here
1933 , DMap.fromDistinctAscList $ map (\(_, _, x) -> x) subscribers
1738 , DMap.fromDistinctAscList $ map (\(_, _, x) -> x) subscribers
1936 destroy :: MergeDestroyFunc k (MergeSubscribedParent x)
1740 destroy :: MergeDestroyFunc k (MergeSubscribedParent x)
1937 destroy s = forM_ (DMap.toList s) $ \(_ :=> MergeSubscribedParent sub) -> unsubscribe sub
1741 destroy s = forM_ (DMap.toList s) $ \(_ :=> MergeSubscribedParent sub) -> unsubscribe sub
1939{-# INLINE [1] mergeCheapWithMove #-}
1743{-# INLINE [1] mergeCheapWithMove #-}
1940−mergeCheapWithMove :: forall k x v q. (HasSpiderTimeline x, GCompare k)
1744+mergeCheapWithMove :: forall k x. (HasSpiderTimeline x, GCompare k) => Dynamic x (PatchDMapWithMove k (Event x)) -> Event x (DMap k Identity)
1941− => (forall a. q a -> Event x (v a))
1942− -> DynamicS x (PatchDMapWithMove k q)
1943− -> Event x (DMap k v)
1944−mergeCheapWithMove nt = mergeGCheap' _mergeSubscribedParentWithMove_subscription getInitialSubscribers updateMe destroy
1745+mergeCheapWithMove = mergeCheap' getInitialSubscribers updateMe destroy
1946− updateMe :: MergeUpdateFunc k v x (PatchDMapWithMove k q) (MergeSubscribedParentWithMove x k)
1747+ updateMe :: MergeUpdateFunc k x (PatchDMapWithMove k (Event x)) (MergeSubscribedParentWithMove x k)
1947 updateMe subscriber heightBagRef oldParents p = do
1748 updateMe subscriber heightBagRef oldParents p = do
1948 -- Prepare new parents for insertion
1749 -- Prepare new parents for insertion
1949− let subscribeParent :: forall a. k a -> Event x (v a) -> EventM x (MergeSubscribedParentWithMove x k a)
1750+ let subscribeParent :: forall a. k a -> Event x a -> EventM x (MergeSubscribedParentWithMove x k a)
1950 subscribeParent k e = do
1751 subscribeParent k e = do
1951 keyRef <- liftIO $ newIORef k
1752 keyRef <- liftIO $ newIORef k
1952 let s = subscriber $ liftIO $ readIORef keyRef
1753 let s = subscriber $ liftIO $ readIORef keyRef
@@ -1955,82 +1756,73 @@ mergeCheapWithMove nt = mergeGCheap' _mergeSubscribedParentWithMove_subscription
1955 newParentHeight <- getEventSubscribedHeight subd
1756 newParentHeight <- getEventSubscribedHeight subd
1956 modifyIORef' heightBagRef $ heightBagAdd newParentHeight
1757 modifyIORef' heightBagRef $ heightBagAdd newParentHeight
1957 return $ MergeSubscribedParentWithMove subscription keyRef
1758 return $ MergeSubscribedParentWithMove subscription keyRef
1958− p' <- PatchDMapWithMove.traversePatchDMapWithMoveWithKey (\k q -> subscribeParent k (nt q)) p
1759+ p' <- PatchDMapWithMove.traversePatchDMapWithMoveWithKey subscribeParent p
1959 -- Collect old parents for deletion and update the keys of moved parents
1760 -- Collect old parents for deletion and update the keys of moved parents
1960− let moveOrDelete :: forall a. k a -> PatchDMapWithMove.NodeInfo k q a -> MergeSubscribedParentWithMove x k a -> Constant (EventM x (Maybe (EventSubscription x))) a
1761+ let moveOrDelete :: forall a. k a -> PatchDMapWithMove.NodeInfo k (Event x) a -> MergeSubscribedParentWithMove x k a -> Constant (EventM x (Maybe (EventSubscription x))) a
1961 moveOrDelete _ ni parent = Constant $ case getComposeMaybe $ PatchDMapWithMove._nodeInfo_to ni of
1762 moveOrDelete _ ni parent = Constant $ case getComposeMaybe $ PatchDMapWithMove._nodeInfo_to ni of
1962 Nothing -> do
1763 Nothing -> do
1963− oldHeight <- liftIO $ getEventSubscribedHeight $ _eventSubscription_subscribed $
1764+ oldHeight <- liftIO $ getEventSubscribedHeight $ _eventSubscription_subscribed $ _mergeSubscribedParentWithMove_subscription parent
1964− _mergeSubscribedParentWithMove_subscription parent
1966 liftIO $ modifyIORef heightBagRef $ heightBagRemove oldHeight
1765 liftIO $ modifyIORef heightBagRef $ heightBagRemove oldHeight
1967 return $ Just $ _mergeSubscribedParentWithMove_subscription parent
1766 return $ Just $ _mergeSubscribedParentWithMove_subscription parent
1968 Just toKey -> do
1767 Just toKey -> do
1969 liftIO $ writeIORef (_mergeSubscribedParentWithMove_key parent) $! toKey
1768 liftIO $ writeIORef (_mergeSubscribedParentWithMove_key parent) $! toKey
1970 return Nothing
1769 return Nothing
1971− toDelete <- fmap catMaybes $ mapM (\(_ :=> v) -> getConstant v) $ DMap.toList $
1972− DMap.intersectionWithKey moveOrDelete (unPatchDMapWithMove p) oldParents
1770+ toDelete <- fmap catMaybes $ mapM (\(_ :=> v) -> getConstant v) $ DMap.toList $ DMap.intersectionWithKey moveOrDelete (unPatchDMapWithMove p) oldParents
1974 return (toDelete, applyAlways p' oldParents)
1771 return (toDelete, applyAlways p' oldParents)
1975− getInitialSubscribers :: MergeInitFunc k v q x (MergeSubscribedParentWithMove x k)
1772+ getInitialSubscribers :: MergeInitFunc k x (MergeSubscribedParentWithMove x k)
1976 getInitialSubscribers initialParents subscriber = do
1773 getInitialSubscribers initialParents subscriber = do
1977 subscribers <- forM (DMap.toList initialParents) $ \(k :=> e) -> do
1774 subscribers <- forM (DMap.toList initialParents) $ \(k :=> e) -> do
1978 keyRef <- liftIO $ newIORef k
1775 keyRef <- liftIO $ newIORef k
1979 let s = subscriber $ liftIO $ readIORef keyRef
1776 let s = subscriber $ liftIO $ readIORef keyRef
1980− (subscription@(EventSubscription _ parentSubd), parentOcc) <- subscribeAndRead (nt e) s
1777+ (subscription@(EventSubscription _ parentSubd), parentOcc) <- subscribeAndRead e s
1981 height <- liftIO $ getEventSubscribedHeight parentSubd
1778 height <- liftIO $ getEventSubscribedHeight parentSubd
1982− return (fmap (k :=>) parentOcc, height, k :=> MergeSubscribedParentWithMove subscription keyRef)
1779+ return (fmap (\x -> k :=> Identity x) parentOcc, height, k :=> MergeSubscribedParentWithMove subscription keyRef)
1983 return ( DMap.fromDistinctAscList $ mapMaybe (\(x, _, _) -> x) subscribers
1780 return ( DMap.fromDistinctAscList $ mapMaybe (\(x, _, _) -> x) subscribers
1984 , fmap (\(_, h, _) -> h) subscribers --TODO: Assert that there's no invalidHeight in here
1781 , fmap (\(_, h, _) -> h) subscribers --TODO: Assert that there's no invalidHeight in here
1985 , DMap.fromDistinctAscList $ map (\(_, _, x) -> x) subscribers
1782 , DMap.fromDistinctAscList $ map (\(_, _, x) -> x) subscribers
1988 destroy :: MergeDestroyFunc k (MergeSubscribedParentWithMove x k)
1784 destroy :: MergeDestroyFunc k (MergeSubscribedParentWithMove x k)
1989 destroy s = forM_ (DMap.toList s) $ \(_ :=> MergeSubscribedParentWithMove sub _) -> unsubscribe sub
1785 destroy s = forM_ (DMap.toList s) $ \(_ :=> MergeSubscribedParentWithMove sub _) -> unsubscribe sub
1991−type MergeUpdateFunc k v x p s
1787+type MergeUpdateFunc k x p s
1992− = (forall a. EventM x (k a) -> Subscriber x (v a))
1788+ = (forall a. EventM x (k a) -> Subscriber x a)
1993 -> IORef HeightBag
1789 -> IORef HeightBag
1994 -> DMap k s
1790 -> DMap k s
1996 -> EventM x ([EventSubscription x], DMap k s)
1792 -> EventM x ([EventSubscription x], DMap k s)
1998−type MergeGetSubscription x s = forall a. s a -> EventSubscription x
2000−type MergeInitFunc k v q x s
1794+type MergeInitFunc k x s
2001− = DMap k q
1795+ = DMap k (Event x)
2002− -> (forall a. EventM x (k a) -> Subscriber x (v a))
1796+ -> (forall a. EventM x (k a) -> Subscriber x a)
2003− -> EventM x (DMap k v, [Height], DMap k s)
1797+ -> EventM x (DMap k Identity, [Height], DMap k s)
2005type MergeDestroyFunc k s
1799type MergeDestroyFunc k s
2006 = DMap k s
1800 = DMap k s
2007 -> IO ()
1801 -> IO ()
2009−data Merge x k v s = Merge
1803+data Merge x k s = Merge
2010 { _merge_parentsRef :: {-# UNPACK #-} !(IORef (DMap k s))
1804 { _merge_parentsRef :: {-# UNPACK #-} !(IORef (DMap k s))
2011 , _merge_heightBagRef :: {-# UNPACK #-} !(IORef HeightBag)
1805 , _merge_heightBagRef :: {-# UNPACK #-} !(IORef HeightBag)
2012 , _merge_heightRef :: {-# UNPACK #-} !(IORef Height)
1806 , _merge_heightRef :: {-# UNPACK #-} !(IORef Height)
2013− , _merge_sub :: {-# UNPACK #-} !(Subscriber x (DMap k v))
1807+ , _merge_sub :: {-# UNPACK #-} !(Subscriber x (DMap k Identity))
2014− , _merge_accumRef :: {-# UNPACK #-} !(IORef (DMap k v))
1808+ , _merge_accumRef :: {-# UNPACK #-} !(IORef (DMap k Identity))
2017−invalidateMergeHeight :: Merge x k v s -> IO ()
1811+invalidateMergeHeight :: Merge x k s -> IO ()
2018invalidateMergeHeight m = invalidateMergeHeight' (_merge_heightRef m) (_merge_sub m)
1812invalidateMergeHeight m = invalidateMergeHeight' (_merge_heightRef m) (_merge_sub m)
2020invalidateMergeHeight' :: IORef Height -> Subscriber x a -> IO ()
1814invalidateMergeHeight' :: IORef Height -> Subscriber x a -> IO ()
2021invalidateMergeHeight' heightRef sub = do
1815invalidateMergeHeight' heightRef sub = do
2022 oldHeight <- readIORef heightRef
1816 oldHeight <- readIORef heightRef
2023− -- If the height used to be valid, it must be invalid now; we should never have *more* heights than we have parents
1817+ 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
2024− when (oldHeight /= invalidHeight) $ do
2025 writeIORef heightRef $! invalidHeight
1818 writeIORef heightRef $! invalidHeight
2026 subscriberInvalidateHeight sub oldHeight
1819 subscriberInvalidateHeight sub oldHeight
2028−revalidateMergeHeight :: Merge x k v s -> IO ()
1822+revalidateMergeHeight :: Merge x k s -> IO ()
2029revalidateMergeHeight m = do
1823revalidateMergeHeight m = do
2030 currentHeight <- readIORef $ _merge_heightRef m
1824 currentHeight <- readIORef $ _merge_heightRef m
2032− -- revalidateMergeHeight may be called multiple times; perhaps the's a way to finesse it to avoid this check
1825+ when (currentHeight == invalidHeight) $ do -- revalidateMergeHeight may be called multiple times; perhaps the's a way to finesse it to avoid this check
2033− when (currentHeight == invalidHeight) $ do
2034 heights <- readIORef $ _merge_heightBagRef m
1826 heights <- readIORef $ _merge_heightBagRef m
2035 parents <- readIORef $ _merge_parentsRef m
1827 parents <- readIORef $ _merge_parentsRef m
2036 -- When the number of heights in the bag reaches the number of parents, we should have a valid height
1828 -- When the number of heights in the bag reaches the number of parents, we should have a valid height
@@ -2038,53 +1830,44 @@ revalidateMergeHeight m = do
2038 LT -> return ()
1830 LT -> return ()
2039 EQ -> do
1831 EQ -> do
2040 let height = succHeight $ heightBagMax heights
1832 let height = succHeight $ heightBagMax heights
2041− traceInvalidateHeight $ "recalculateSubscriberHeight: height: " <> show height
1833+ when debugInvalidateHeight $ putStrLn $ "recalculateSubscriberHeight: height: " <> show height
2042 writeIORef (_merge_heightRef m) $! height
1834 writeIORef (_merge_heightRef m) $! height
2043 subscriberRecalculateHeight (_merge_sub m) height
1835 subscriberRecalculateHeight (_merge_sub m) height
2044 GT -> error $ "revalidateMergeHeight: more heights (" <> show (heightBagSize heights) <> ") than parents (" <> show (DMap.size parents) <> ") for Merge"
1836 GT -> error $ "revalidateMergeHeight: more heights (" <> show (heightBagSize heights) <> ") than parents (" <> show (DMap.size parents) <> ") for Merge"
2046−scheduleMergeSelf :: HasSpiderTimeline x => Merge x k v s -> Height -> EventM x ()
1838+scheduleMergeSelf :: HasSpiderTimeline x => Merge x k s -> Height -> EventM x ()
2047scheduleMergeSelf m height = scheduleMerge' height (_merge_heightRef m) $ do
1839scheduleMergeSelf m height = scheduleMerge' height (_merge_heightRef m) $ do
2048 vals <- liftIO $ readIORef $ _merge_accumRef m
1840 vals <- liftIO $ readIORef $ _merge_accumRef m
2049− -- Once we're done with this, we can clear it immediately, because if there's a cacheEvent in front of us,
1841+ 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
2050− -- it'll handle subsequent subscribers, and if not, we won't get subsequent subscribers
2051− liftIO $ writeIORef (_merge_accumRef m) $! DMap.empty
2052 --TODO: Assert that m is not empty
1842 --TODO: Assert that m is not empty
2053 subscriberPropagate (_merge_sub m) vals
1843 subscriberPropagate (_merge_sub m) vals
2055−checkCycle :: HasSpiderTimeline x => EventSubscribed x -> EventM x ()
2056−checkCycle subscribed = liftIO $ do
2057− height <- readIORef (eventSubscribedHeightRef subscribed)
2059− -- currentHeight <- getCurrentHeight
2060− -- when (height <= currentHeight) $ if height /= invalidHeight
2062− -- myStack <- liftIO $ whoCreatedIORef undefined --TODO
2063− -- error $ "Height (" ++ show height ++ ") is not greater than current height (" ++ show currentHeight ++ ")\n" ++ unlines (reverse myStack)
2065− when (height == invalidHeight) $
2068− nodesInvolvedInCycle <- walkInvalidHeightParents subscribed
2069− stacks <- forM nodesInvolvedInCycle whoCreatedEventSubscribed
2070− throwIO (EventLoopException stacks)
2072− throwIO EventLoopException
2076−mergeSubscriber :: forall x k v s a. (HasSpiderTimeline x, GCompare k) => EventSubscribed x -> Merge x k v s -> EventM x (k a) -> Subscriber x (v a)
1845+mergeSubscriber :: forall x k s a. (HasSpiderTimeline x, GCompare k) => Merge x k s -> EventM x (k a) -> Subscriber x a
2077−mergeSubscriber subscribed m getKey = Subscriber
1846+mergeSubscriber m getKey = Subscriber
2078 { subscriberPropagate = \a -> do
1847 { subscriberPropagate = \a -> do
2079 oldM <- liftIO $ readIORef $ _merge_accumRef m
1848 oldM <- liftIO $ readIORef $ _merge_accumRef m
2080 k <- getKey
1849 k <- getKey
2081− let newM = DMap.insertWith (error "Same key fired multiple times for Merge") k a oldM
1850+ let newM = DMap.insertWith (error $ "Same key fired multiple times for Merge") k (Identity a) oldM
2082 tracePropagate (Proxy :: Proxy x) $ " DMap.size oldM = " <> show (DMap.size oldM) <> "; DMap.size newM = " <> show (DMap.size newM)
1851 tracePropagate (Proxy :: Proxy x) $ " DMap.size oldM = " <> show (DMap.size oldM) <> "; DMap.size newM = " <> show (DMap.size newM)
2083 liftIO $ writeIORef (_merge_accumRef m) $! newM
1852 liftIO $ writeIORef (_merge_accumRef m) $! newM
2084 when (DMap.null oldM) $ do -- Only schedule the firing once
1853 when (DMap.null oldM) $ do -- Only schedule the firing once
2085 height <- liftIO $ readIORef $ _merge_heightRef m
1854 height <- liftIO $ readIORef $ _merge_heightRef m
2086− checkCycle subscribed
1855+ --TODO: assertions about height
2087−
1856+ currentHeight <- getCurrentHeight
1857+ when (height <= currentHeight) $ do
1858+ if height /= invalidHeight
1860+ myStack <- liftIO $ whoCreatedIORef undefined --TODO
1861+ error $ "Height (" ++ show height ++ ") is not greater than current height (" ++ show currentHeight ++ ")\n" ++ unlines (reverse myStack)
1864+ nodesInvolvedInCycle <- walkInvalidHeightParents $ eventSubscribedMerge subscribed
1865+ stacks <- forM nodesInvolvedInCycle $ \(Some.This es) -> whoCreatedEventSubscribed es
1866+ let cycleInfo = ":\n" <> drawForest (listsToForest stacks)
1870+ error $ "Causality loop found" <> cycleInfo
2088 scheduleMergeSelf m height
1871 scheduleMergeSelf m height
2089 , subscriberInvalidateHeight = \old -> do --TODO: When removing a parent doesn't actually change the height, maybe we can avoid invalidating
1872 , subscriberInvalidateHeight = \old -> do --TODO: When removing a parent doesn't actually change the height, maybe we can avoid invalidating
2090 modifyIORef' (_merge_heightBagRef m) $ heightBagRemove old
1873 modifyIORef' (_merge_heightBagRef m) $ heightBagRemove old
@@ -2095,45 +1878,30 @@ mergeSubscriber subscribed m getKey = Subscriber
2097--TODO: Be able to run as much of this as possible promptly
1880--TODO: Be able to run as much of this as possible promptly
2098−updateMerge :: (HasSpiderTimeline x, GCompare k) => EventSubscribed x -> Merge x k v s -> MergeUpdateFunc k v x p s -> p -> SomeMergeUpdate x
1881+updateMerge :: (HasSpiderTimeline x, GCompare k) => Merge x k s -> MergeUpdateFunc k x p s -> p -> SomeMergeUpdate x
2099−updateMerge subscribed m updateFunc p = SomeMergeUpdate updateMe (invalidateMergeHeight m) (revalidateMergeHeight m)
1882+updateMerge m updateFunc p = SomeMergeUpdate updateMe (invalidateMergeHeight m) (revalidateMergeHeight m)
2100 where updateMe = do
1883 where updateMe = do
2101 oldParents <- liftIO $ readIORef $ _merge_parentsRef m
1884 oldParents <- liftIO $ readIORef $ _merge_parentsRef m
2102− (subscriptionsToKill, newParents) <- updateFunc (mergeSubscriber subscribed m) (_merge_heightBagRef m) oldParents p
1885+ (subscriptionsToKill, newParents) <- updateFunc (mergeSubscriber m) (_merge_heightBagRef m) oldParents p
2103 liftIO $ writeIORef (_merge_parentsRef m) $! newParents
1886 liftIO $ writeIORef (_merge_parentsRef m) $! newParents
2104 return subscriptionsToKill
1887 return subscriptionsToKill
2106−{-# INLINE mergeGCheap' #-}
1889+{-# INLINE mergeCheap' #-}
2107−mergeGCheap' :: forall k v x p s q. (HasSpiderTimeline x, GCompare k, PatchTarget p ~ DMap k q)
2108− => MergeGetSubscription x s -> MergeInitFunc k v q x s -> MergeUpdateFunc k v x p s -> MergeDestroyFunc k s -> DynamicS x p -> Event x (DMap k v)
1890+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)
2109−mergeGCheap' getParent getInitialSubscribers updateFunc destroy d = Event $ \sub -> do
1891+mergeCheap' getInitialSubscribers updateFunc destroy d = Event $ \sub -> do
2110 initialParents <- readBehaviorUntracked $ dynamicCurrent d
1892 initialParents <- readBehaviorUntracked $ dynamicCurrent d
2111 accumRef <- liftIO $ newIORef $ error "merge: accumRef not yet initialized"
1893 accumRef <- liftIO $ newIORef $ error "merge: accumRef not yet initialized"
2112 heightRef <- liftIO $ newIORef $ error "merge: heightRef not yet initialized"
1894 heightRef <- liftIO $ newIORef $ error "merge: heightRef not yet initialized"
2113 heightBagRef <- liftIO $ newIORef $ error "merge: heightBagRef not yet initialized"
1895 heightBagRef <- liftIO $ newIORef $ error "merge: heightBagRef not yet initialized"
2114 parentsRef :: IORef (DMap k s) <- liftIO $ newIORef $ error "merge: parentsRef not yet initialized"
1896 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
2129− m = Merge
1897+ let m = Merge
2130 { _merge_parentsRef = parentsRef
1898 { _merge_parentsRef = parentsRef
2131 , _merge_heightBagRef = heightBagRef
1899 , _merge_heightBagRef = heightBagRef
2132 , _merge_heightRef = heightRef
1900 , _merge_heightRef = heightRef
2133 , _merge_sub = sub
1901 , _merge_sub = sub
2134 , _merge_accumRef = accumRef
1902 , _merge_accumRef = accumRef
2136− (dm, heights, initialParentState) <- getInitialSubscribers initialParents $ mergeSubscriber subscribed m
1904+ (dm, heights, initialParentState) <- getInitialSubscribers initialParents $ mergeSubscriber m
2137 let myHeightBag = heightBagFromList $ filter (/= invalidHeight) heights
1905 let myHeightBag = heightBagFromList $ filter (/= invalidHeight) heights
2138 myHeight = if invalidHeight `elem` heights
1906 myHeight = if invalidHeight `elem` heights
2139 then invalidHeight
1907 then invalidHeight
@@ -2142,57 +1910,50 @@ mergeGCheap' getParent getInitialSubscribers updateFunc destroy d = Event $ \sub
2142 let (occ, accum) = if currentHeight >= myHeight -- If we should have fired by now
1910 let (occ, accum) = if currentHeight >= myHeight -- If we should have fired by now
2143 then (if DMap.null dm then Nothing else Just dm, DMap.empty)
1911 then (if DMap.null dm then Nothing else Just dm, DMap.empty)
2144 else (Nothing, dm)
1912 else (Nothing, dm)
1913+ unless (DMap.null accum) $ do
2145− unless (DMap.null accum) $ scheduleMergeSelf m myHeight
1914+ scheduleMergeSelf m myHeight
2146 liftIO $ writeIORef accumRef $! accum
1915 liftIO $ writeIORef accumRef $! accum
2147 liftIO $ writeIORef heightRef $! myHeight
1916 liftIO $ writeIORef heightRef $! myHeight
2148 liftIO $ writeIORef heightBagRef $! myHeightBag
1917 liftIO $ writeIORef heightBagRef $! myHeightBag
1918+ changeSubdRef <- liftIO $ newIORef $ error "getMergeSubscribed: changeSubdRef not yet initialized"
2149 liftIO $ writeIORef parentsRef $! initialParentState
1919 liftIO $ writeIORef parentsRef $! initialParentState
2150 defer $ SomeMergeInit $ do
1920 defer $ SomeMergeInit $ do
2151− let changeSubscriber = Subscriber
1921+ let s = Subscriber
2152 { subscriberPropagate = \a -> {-# SCC "traverseMergeChange" #-} do
1922 { subscriberPropagate = \a -> {-# SCC "traverseMergeChange" #-} do
2153− tracePropagate (Proxy :: Proxy x) "SubscriberMerge/Change"
1923+ tracePropagate (Proxy :: Proxy x) $ "SubscriberMerge/Change"
2154− defer $ updateMerge subscribed m updateFunc a
1924+ defer $ updateMerge m updateFunc a
2155 , subscriberInvalidateHeight = \_ -> return ()
1925 , subscriberInvalidateHeight = \_ -> return ()
2156 , subscriberRecalculateHeight = \_ -> return ()
1926 , subscriberRecalculateHeight = \_ -> return ()
2158− (changeSubscription, change) <- subscribeAndRead (dynamicUpdated d) changeSubscriber
1928+ (changeSubscription, change) <- subscribeAndRead (dynamicUpdated d) s
2159− forM_ change $ \c -> defer $ updateMerge subscribed m updateFunc c
1929+ forM_ change $ \c -> defer $ updateMerge m updateFunc c
2160 -- We explicitly hold on to the unsubscribe function from subscribing to the update event.
1930 -- We explicitly hold on to the unsubscribe function from subscribing to the update event.
2161 -- If we don't do this, there are certain cases where mergeCheap will fail to properly retain
1931 -- If we don't do this, there are certain cases where mergeCheap will fail to properly retain
2162 -- its subscription.
1932 -- its subscription.
2163− liftIO $ writeIORef changeSubdRef (changeSubscriber, changeSubscription)
1933+ liftIO $ writeIORef changeSubdRef (s, changeSubscription)
2164 let unsubscribeAll = destroy =<< readIORef parentsRef
1934 let unsubscribeAll = destroy =<< readIORef parentsRef
1935+ return ( EventSubscription unsubscribeAll $ EventSubscribed heightRef $ toAny (parentsRef, changeSubdRef)
2166− return (EventSubscription unsubscribeAll subscribed, occ)
2169−mergeInt :: forall x a. (HasSpiderTimeline x) => DynamicS x (PatchIntMap (Event x a)) -> Event x (IntMap a)
1939+mergeInt :: forall x a. (HasSpiderTimeline x) => Dynamic x (PatchIntMap (Event x a)) -> Event x (IntMap a)
2170mergeInt = cacheEvent . mergeIntCheap
1940mergeInt = cacheEvent . mergeIntCheap
2172{-# INLINABLE mergeIntCheap #-}
1942{-# INLINABLE mergeIntCheap #-}
2173−mergeIntCheap :: forall x a. (HasSpiderTimeline x) => DynamicS x (PatchIntMap (Event x a)) -> Event x (IntMap a)
1943+mergeIntCheap :: forall x a. (HasSpiderTimeline x) => Dynamic x (PatchIntMap (Event x a)) -> Event x (IntMap a)
2174mergeIntCheap d = Event $ \sub -> do
1944mergeIntCheap d = Event $ \sub -> do
2175 initialParents <- readBehaviorUntracked $ dynamicCurrent d
1945 initialParents <- readBehaviorUntracked $ dynamicCurrent d
2176 accum <- liftIO $ FastMutableIntMap.newEmpty
1946 accum <- liftIO $ FastMutableIntMap.newEmpty
2177 heightRef <- liftIO $ newIORef zeroHeight
1947 heightRef <- liftIO $ newIORef zeroHeight
2178 heightBagRef <- liftIO $ newIORef heightBagEmpty
1948 heightBagRef <- liftIO $ newIORef heightBagEmpty
2179 parents <- liftIO $ FastMutableIntMap.newEmpty
1949 parents <- liftIO $ FastMutableIntMap.newEmpty
2180− changeSubdRef <- liftIO $ newIORef $ error "getMergeSubscribed: changeSubdRef not yet initialized"
2181− let subscribed = EventSubscribed
2182− { eventSubscribedHeightRef = heightRef
2183− , eventSubscribedRetained = toAny (parents, changeSubdRef)
2185− , eventSubscribedGetParents = fmap (_eventSubscription_subscribed . snd) <$> FastMutableIntMap.toList parents
2186− , eventSubscribedHasOwnHeightRef = False
2187− , eventSubscribedWhoCreated = whoCreatedIORef heightRef
2190 let scheduleSelf = do
1950 let scheduleSelf = do
2191 height <- liftIO $ readIORef $ heightRef
1951 height <- liftIO $ readIORef $ heightRef
2192 scheduleMerge' height heightRef $ do
1952 scheduleMerge' height heightRef $ do
2193 vals <- liftIO $ FastMutableIntMap.getFrozenAndClear accum
1953 vals <- liftIO $ FastMutableIntMap.getFrozenAndClear accum
2194 subscriberPropagate sub vals
1954 subscriberPropagate sub vals
1955+ invalidateMyHeight = do
2195− invalidateMyHeight = invalidateMergeHeight' heightRef sub
1956+ invalidateMergeHeight' heightRef sub
2196 recalculateMyHeight = do
1957 recalculateMyHeight = do
2197 currentHeight <- readIORef heightRef
1958 currentHeight <- readIORef heightRef
2198 when (currentHeight == invalidHeight) $ do --TODO: This will almost always be true; can we get rid of this check and just proceed to the next one always?
1959 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?
@@ -2202,14 +1963,12 @@ mergeIntCheap d = Event $ \sub -> do
2202 LT -> return ()
1963 LT -> return ()
2203 EQ -> do
1964 EQ -> do
2204 let height = succHeight $ heightBagMax heights
1965 let height = succHeight $ heightBagMax heights
2205− traceInvalidateHeight $ "recalculateSubscriberHeight: height: " <> show height
1966+ when debugInvalidateHeight $ putStrLn $ "recalculateSubscriberHeight: height: " <> show height
2206 writeIORef heightRef $! height
1967 writeIORef heightRef $! height
2207 subscriberRecalculateHeight sub height
1968 subscriberRecalculateHeight sub height
2208 GT -> error $ "revalidateMergeHeight: more heights (" <> show (heightBagSize heights) <> ") than parents (" <> show numParents <> ") for Merge"
1969 GT -> error $ "revalidateMergeHeight: more heights (" <> show (heightBagSize heights) <> ") than parents (" <> show numParents <> ") for Merge"
2209 mySubscriber k = Subscriber
1970 mySubscriber k = Subscriber
2210 { subscriberPropagate = \a -> do
1971 { subscriberPropagate = \a -> do
2211− checkCycle subscribed
2213 wasEmpty <- liftIO $ FastMutableIntMap.isEmpty accum
1972 wasEmpty <- liftIO $ FastMutableIntMap.isEmpty accum
2214 liftIO $ FastMutableIntMap.insert accum k a
1973 liftIO $ FastMutableIntMap.insert accum k a
2215 when wasEmpty scheduleSelf
1974 when wasEmpty scheduleSelf
@@ -2243,6 +2002,7 @@ mergeIntCheap d = Event $ \sub -> do
2243 else liftIO $ Just <$> FastMutableIntMap.getFrozenAndClear accum
2002 else liftIO $ Just <$> FastMutableIntMap.getFrozenAndClear accum
2244 else do when (not isEmpty) scheduleSelf -- We have things accumulated, but we shouldn't have fired them yet
2003 else do when (not isEmpty) scheduleSelf -- We have things accumulated, but we shouldn't have fired them yet
2245 return Nothing
2004 return Nothing
2005+ changeSubdRef <- liftIO $ newIORef $ error "getMergeSubscribed: changeSubdRef not yet initialized"
2246 defer $ SomeMergeInit $ do
2006 defer $ SomeMergeInit $ do
2247 let updateMe a = SomeMergeUpdate u invalidateMyHeight recalculateMyHeight
2007 let updateMe a = SomeMergeUpdate u invalidateMyHeight recalculateMyHeight
@@ -2256,39 +2016,35 @@ mergeIntCheap d = Event $ \sub -> do
2256 oldParents <- liftIO $ FastMutableIntMap.applyPatch parents newSubscriptions
2016 oldParents <- liftIO $ FastMutableIntMap.applyPatch parents newSubscriptions
2257 liftIO $ for_ oldParents $ \oldParent -> do
2017 liftIO $ for_ oldParents $ \oldParent -> do
2258 oldParentHeight <- getEventSubscribedHeight $ _eventSubscription_subscribed oldParent
2018 oldParentHeight <- getEventSubscribedHeight $ _eventSubscription_subscribed oldParent
2260− print ("updateMe", oldParentHeight)
2261 modifyIORef' heightBagRef $ heightBagRemove oldParentHeight
2019 modifyIORef' heightBagRef $ heightBagRemove oldParentHeight
2262 return $ IntMap.elems oldParents
2020 return $ IntMap.elems oldParents
2263− let changeSubscriber = Subscriber
2021+ let s = Subscriber
2264 { subscriberPropagate = \a -> {-# SCC "traverseMergeChange" #-} do
2022 { subscriberPropagate = \a -> {-# SCC "traverseMergeChange" #-} do
2265 tracePropagate (Proxy :: Proxy x) $ "SubscriberMergeInt/Change"
2023 tracePropagate (Proxy :: Proxy x) $ "SubscriberMergeInt/Change"
2266 defer $ updateMe a
2024 defer $ updateMe a
2267 , subscriberInvalidateHeight = \_ -> return ()
2025 , subscriberInvalidateHeight = \_ -> return ()
2268 , subscriberRecalculateHeight = \_ -> return ()
2026 , subscriberRecalculateHeight = \_ -> return ()
2270− (changeSubscription, change) <- subscribeAndRead (dynamicUpdated d) changeSubscriber
2028+ (changeSubscription, change) <- subscribeAndRead (dynamicUpdated d) s
2271 forM_ change $ \c -> defer $ updateMe c
2029 forM_ change $ \c -> defer $ updateMe c
2272 -- We explicitly hold on to the unsubscribe function from subscribing to the update event.
2030 -- We explicitly hold on to the unsubscribe function from subscribing to the update event.
2273 -- If we don't do this, there are certain cases where mergeCheap will fail to properly retain
2031 -- If we don't do this, there are certain cases where mergeCheap will fail to properly retain
2274 -- its subscription.
2032 -- its subscription.
2275− liftIO $ writeIORef changeSubdRef (changeSubscriber, changeSubscription)
2033+ liftIO $ writeIORef changeSubdRef (s, changeSubscription)
2276 let unsubscribeAll = traverse_ unsubscribe =<< FastMutableIntMap.getFrozenAndClear parents
2034 let unsubscribeAll = traverse_ unsubscribe =<< FastMutableIntMap.getFrozenAndClear parents
2279− return (EventSubscription unsubscribeAll subscribed, occ)
2035+ return ( EventSubscription unsubscribeAll $ EventSubscribed heightRef $ toAny (parents, changeSubdRef)
2281newtype EventSelector x k = EventSelector { select :: forall a. k a -> Event x a }
2039newtype 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) }
2284−fanG :: (HasSpiderTimeline x, GCompare k) => Event x (DMap k v) -> EventSelectorG x k v
2041+fan :: (HasSpiderTimeline x, GCompare k) => Event x (DMap k Identity) -> EventSelector x k
2285−fanG e = unsafePerformIO $ do
2042+fan e =
2286− ref <- newIORef Nothing
2287 let f = Fan
2043 let f = Fan
2288 { fanParent = e
2044 { fanParent = e
2289− , fanSubscribed = ref
2045+ , fanSubscribed = unsafeNewIORef e Nothing
2291− pure $ EventSelectorG $ \k -> eventFan k f
2047+ in EventSelector $ \k -> eventFan k f
2293runHoldInits :: HasSpiderTimeline x => IORef [SomeHoldInit x] -> IORef [SomeDynInit x] -> IORef [SomeMergeInit x] -> EventM x ()
2049runHoldInits :: HasSpiderTimeline x => IORef [SomeHoldInit x] -> IORef [SomeDynInit x] -> IORef [SomeMergeInit x] -> EventM x ()
2294runHoldInits holdInitRef dynInitRef mergeInitRef = do
2050runHoldInits holdInitRef dynInitRef mergeInitRef = do
@@ -2341,37 +2097,37 @@ clearEventEnv (EventEnv toAssignRef holdInitRef dynInitRef mergeUpdateRef mergeI
2342-- | Run an event action outside of a frame
2098-- | Run an event action outside of a frame
2343runFrame :: forall x a. HasSpiderTimeline x => EventM x a -> SpiderHost x a --TODO: This function also needs to hold the mutex
2099runFrame :: forall x a. HasSpiderTimeline x => EventM x a -> SpiderHost x a --TODO: This function also needs to hold the mutex
2344−runFrame a = SpiderHost $ do
2100+runFrame a = SpiderHost $ ask >>= \_ -> lift $ do
2345− let env = _spiderTimeline_eventEnv $ unSTE (spiderTimeline :: SpiderTimelineEnv x)
2101+ let env = _spiderTimeline_eventEnv (spiderTimeline :: SpiderTimelineEnv x)
2346 let go = do
2102 let go = do
2347 result <- a
2103 result <- a
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
2104 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
2349 return result
2105 return result
2350 result <- runEventM go
2106 result <- runEventM go
2351 toClear <- readIORef $ eventEnvClears env
2107 toClear <- readIORef $ eventEnvClears env
2352− forM_ toClear $ \(Some (Clear ref)) -> {-# SCC "clear" #-} writeIORef ref Nothing
2108+ forM_ toClear $ \(SomeClear ref) -> {-# SCC "clear" #-} writeIORef ref Nothing
2353 toClearInt <- readIORef $ eventEnvIntClears env
2109 toClearInt <- readIORef $ eventEnvIntClears env
2354− forM_ toClearInt $ \(Some (IntClear ref)) -> {-# SCC "intClear" #-} writeIORef ref $! IntMap.empty
2110+ forM_ toClearInt $ \(SomeIntClear ref) -> {-# SCC "intClear" #-} writeIORef ref $! IntMap.empty
2355 toClearRoot <- readIORef $ eventEnvRootClears env
2111 toClearRoot <- readIORef $ eventEnvRootClears env
2356− forM_ toClearRoot $ \(Some (RootClear ref)) -> {-# SCC "rootClear" #-} writeIORef ref $! DMap.empty
2112+ forM_ toClearRoot $ \(SomeRootClear ref) -> {-# SCC "rootClear" #-} writeIORef ref $! DMap.empty
2357 toAssign <- readIORef $ eventEnvAssignments env
2113 toAssign <- readIORef $ eventEnvAssignments env
2358 toReconnectRef <- newIORef []
2114 toReconnectRef <- newIORef []
2359 coincidenceInfos <- readIORef $ eventEnvResetCoincidences env
2115 coincidenceInfos <- readIORef $ eventEnvResetCoincidences env
2360 forM_ toAssign $ \(SomeAssignment vRef iRef v) -> {-# SCC "assignment" #-} do
2116 forM_ toAssign $ \(SomeAssignment vRef iRef v) -> {-# SCC "assignment" #-} do
2361 writeIORef vRef v
2117 writeIORef vRef v
2362− traceInvalidate $ "Invalidating Hold"
2118+ when debugInvalidate $ putStrLn $ "Invalidating Hold"
2363 writeIORef iRef =<< evaluate =<< invalidate toReconnectRef =<< readIORef iRef
2119 writeIORef iRef =<< evaluate =<< invalidate toReconnectRef =<< readIORef iRef
2364 mergeUpdates <- readIORef $ eventEnvMergeUpdates env
2120 mergeUpdates <- readIORef $ eventEnvMergeUpdates env
2365 writeIORef (eventEnvMergeUpdates env) []
2121 writeIORef (eventEnvMergeUpdates env) []
2366− tracePropagate (Proxy::Proxy x) $ "Updating merges"
2122+ when debugPropagate $ putStrLn "Updating merges"
2367 mergeSubscriptionsToKill <- runEventM $ concat <$> mapM _someMergeUpdate_update mergeUpdates
2123 mergeSubscriptionsToKill <- runEventM $ concat <$> mapM _someMergeUpdate_update mergeUpdates
2368− tracePropagate (Proxy::Proxy x) $ "Updating merges done"
2124+ when debugPropagate $ putStrLn "Updating merges done"
2369 toReconnect <- readIORef toReconnectRef
2125 toReconnect <- readIORef toReconnectRef
2370 clearEventEnv env
2126 clearEventEnv env
2371 switchSubscriptionsToKill <- forM toReconnect $ \(SomeSwitchSubscribed subscribed) -> {-# SCC "switchSubscribed" #-} do
2127 switchSubscriptionsToKill <- forM toReconnect $ \(SomeSwitchSubscribed subscribed) -> {-# SCC "switchSubscribed" #-} do
2372 oldSubscription <- readIORef $ switchSubscribedCurrentParent subscribed
2128 oldSubscription <- readIORef $ switchSubscribedCurrentParent subscribed
2373 wi <- readIORef $ switchSubscribedOwnWeakInvalidator subscribed
2129 wi <- readIORef $ switchSubscribedOwnWeakInvalidator subscribed
2374− traceInvalidate $ "Finalizing invalidator for Switch" <> showNodeId subscribed
2130+ when debugInvalidate $ putStrLn $ "Finalizing invalidator for Switch" <> showNodeId subscribed
2375 finalize wi
2131 finalize wi
2376 i <- evaluate $ switchSubscribedOwnInvalidator subscribed
2132 i <- evaluate $ switchSubscribedOwnInvalidator subscribed
2377 wi' <- mkWeakPtrWithDebug i "wi'"
2133 wi' <- mkWeakPtrWithDebug i "wi'"
@@ -2382,10 +2138,10 @@ runFrame a = SpiderHost $ do
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
2138 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
2383 --TODO: Make sure we touch the pieces of the SwitchSubscribed at the appropriate times
2139 --TODO: Make sure we touch the pieces of the SwitchSubscribed at the appropriate times
2384 sub <- newSubscriberSwitch subscribed
2140 sub <- newSubscriberSwitch subscribed
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
2141+ 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
2387 stackTrace <- liftIO $ fmap renderStack $ ccsToStrings =<< (getCCSOf $! switchSubscribedParent subscribed)
2143 stackTrace <- liftIO $ fmap renderStack $ ccsToStrings =<< (getCCSOf $! switchSubscribedParent subscribed)
2388− liftIO $ debugStrLn $ (++stackTrace) $ "subd' subscribed to " ++ case e of
2144+ liftIO $ putStrLn $ (++stackTrace) $ "subd' subscribed to " ++ case e of
2389 EventRoot _ -> "EventRoot"
2145 EventRoot _ -> "EventRoot"
2390 EventNever -> "EventNever"
2146 EventNever -> "EventNever"
2391 _ -> "something else"
2147 _ -> "something else"
@@ -2400,7 +2156,7 @@ runFrame a = SpiderHost $ do
2400 myHeight <- readIORef $ switchSubscribedHeight subscribed
2156 myHeight <- readIORef $ switchSubscribedHeight subscribed
2401 when (parentHeight /= myHeight) $ do
2157 when (parentHeight /= myHeight) $ do
2402 writeIORef (switchSubscribedHeight subscribed) $! invalidHeight
2158 writeIORef (switchSubscribedHeight subscribed) $! invalidHeight
2403− WeakBag.traverse_ (switchSubscribedSubscribers subscribed) $ invalidateSubscriberHeight myHeight
2159+ WeakBag.traverse (switchSubscribedSubscribers subscribed) $ invalidateSubscriberHeight myHeight
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
2160 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
2405 forM_ coincidenceInfos $ \(SomeResetCoincidence subscription mcs) -> do
2161 forM_ coincidenceInfos $ \(SomeResetCoincidence subscription mcs) -> do
2406 unsubscribe subscription
2162 unsubscribe subscription
@@ -2441,7 +2197,7 @@ invalidateCoincidenceHeight subscribed = do
2441 oldHeight <- readIORef $ coincidenceSubscribedHeight subscribed
2197 oldHeight <- readIORef $ coincidenceSubscribedHeight subscribed
2442 when (oldHeight /= invalidHeight) $ do
2198 when (oldHeight /= invalidHeight) $ do
2443 writeIORef (coincidenceSubscribedHeight subscribed) $! invalidHeight
2199 writeIORef (coincidenceSubscribedHeight subscribed) $! invalidHeight
2444− WeakBag.traverse_ (coincidenceSubscribedSubscribers subscribed) $ invalidateSubscriberHeight oldHeight
2200+ WeakBag.traverse (coincidenceSubscribedSubscribers subscribed) $ invalidateSubscriberHeight oldHeight
2446updateSwitchHeight :: Height -> SwitchSubscribed x a -> IO ()
2202updateSwitchHeight :: Height -> SwitchSubscribed x a -> IO ()
2447updateSwitchHeight new subscribed = do
2203updateSwitchHeight new subscribed = do
@@ -2449,7 +2205,7 @@ updateSwitchHeight new subscribed = do
2449 when (oldHeight == invalidHeight) $ do --TODO: This 'when' should probably be an assertion
2205 when (oldHeight == invalidHeight) $ do --TODO: This 'when' should probably be an assertion
2450 when (new /= invalidHeight) $ do --TODO: This 'when' should probably be an assertion
2206 when (new /= invalidHeight) $ do --TODO: This 'when' should probably be an assertion
2451 writeIORef (switchSubscribedHeight subscribed) $! new
2207 writeIORef (switchSubscribedHeight subscribed) $! new
2452− WeakBag.traverse_ (switchSubscribedSubscribers subscribed) $ recalculateSubscriberHeight new
2208+ WeakBag.traverse (switchSubscribedSubscribers subscribed) $ recalculateSubscriberHeight new
2454recalculateCoincidenceHeight :: CoincidenceSubscribed x a -> IO ()
2210recalculateCoincidenceHeight :: CoincidenceSubscribed x a -> IO ()
2455recalculateCoincidenceHeight subscribed = do
2211recalculateCoincidenceHeight subscribed = do
@@ -2458,7 +2214,7 @@ recalculateCoincidenceHeight subscribed = do
2458 height <- calculateCoincidenceHeight subscribed
2214 height <- calculateCoincidenceHeight subscribed
2459 when (height /= invalidHeight) $ do
2215 when (height /= invalidHeight) $ do
2460 writeIORef (coincidenceSubscribedHeight subscribed) $! height
2216 writeIORef (coincidenceSubscribedHeight subscribed) $! height
2461− WeakBag.traverse_ (coincidenceSubscribedSubscribers subscribed) $ recalculateSubscriberHeight height
2217+ WeakBag.traverse (coincidenceSubscribedSubscribers subscribed) $ recalculateSubscriberHeight height
2463calculateSwitchHeight :: SwitchSubscribed x a -> IO Height
2219calculateSwitchHeight :: SwitchSubscribed x a -> IO Height
2464calculateSwitchHeight subscribed = getEventSubscribedHeight . _eventSubscription_subscribed =<< readIORef (switchSubscribedCurrentParent subscribed)
2220calculateSwitchHeight subscribed = getEventSubscribedHeight . _eventSubscription_subscribed =<< readIORef (switchSubscribedCurrentParent subscribed)
@@ -2497,219 +2253,14 @@ invalidate toReconnectRef wis = do
2497-- Reflex integration
2253-- Reflex integration
2498--------------------------------------------------------------------------------
2254--------------------------------------------------------------------------------
2500−-- | Designates the default, global Spider timeline
2256+#ifndef SPECIALIZE_TO_SPIDERTIMELINE_GLOBAL
2501−data SpiderTimeline x
2257+-- When we're specializing, we include this from Reflex.Class instead, because
2502−type role SpiderTimeline nominal
2258+-- it needs access to these types; when we're not, we want them here, so our
2503−
2259+-- instance isn't an orphan instance.
2504−-- | The default, global Spider environment
2260+#include "SpiderTimeline.include.hs"
2505−type Spider = SpiderTimeline Global
2261+#include "SpiderTimelineHost.include.hs"
2507−instance HasSpiderTimeline x => Reflex.Class.MonadSample (SpiderTimeline x) (EventM x) where
2508− {-# INLINABLE sample #-}
2509− sample (SpiderBehavior b) = readBehaviorUntracked b
2511−instance HasSpiderTimeline x => Reflex.Class.MonadHold (SpiderTimeline x) (EventM x) where
2512− {-# INLINABLE hold #-}
2513− hold = holdSpiderEventM
2514− {-# INLINABLE holdDyn #-}
2515− holdDyn = holdDynSpiderEventM
2516− {-# INLINABLE holdIncremental #-}
2517− holdIncremental = holdIncrementalSpiderEventM
2518− {-# INLINABLE buildDynamic #-}
2519− buildDynamic = buildDynamicSpiderEventM
2520− {-# INLINABLE headE #-}
2521− headE = R.slowHeadE
2522−-- headE (SpiderEvent e) = SpiderEvent <$> Reflex.Spider.Internal.headE e
2523− {-# INLINABLE now #-}
2524− now = nowSpiderEventM
2526−instance Reflex.Class.MonadSample (SpiderTimeline x) (SpiderPullM x) where
2527− {-# INLINABLE sample #-}
2528− sample = coerce . readBehaviorTracked . unSpiderBehavior
2530−instance HasSpiderTimeline x => Reflex.Class.MonadSample (SpiderTimeline x) (SpiderPushM x) where
2531− {-# INLINABLE sample #-}
2532− sample (SpiderBehavior b) = SpiderPushM $ readBehaviorUntracked b
2534−instance HasSpiderTimeline x => Reflex.Class.MonadHold (SpiderTimeline x) (SpiderPushM x) where
2535− {-# INLINABLE hold #-}
2536− hold v0 e = Reflex.Class.current <$> Reflex.Class.holdDyn v0 e
2537− {-# INLINABLE holdDyn #-}
2538− holdDyn v0 (SpiderEvent e) = SpiderPushM $ fmap (SpiderDynamic . dynamicHoldIdentity) $ Reflex.Spider.Internal.hold v0 $ coerce e
2539− {-# INLINABLE holdIncremental #-}
2540− holdIncremental v0 (SpiderEvent e) = SpiderPushM $ SpiderIncremental . dynamicHold <$> Reflex.Spider.Internal.hold v0 e
2541− {-# INLINABLE buildDynamic #-}
2542− buildDynamic getV0 (SpiderEvent e) = SpiderPushM $ fmap (SpiderDynamic . dynamicDynIdentity) $ Reflex.Spider.Internal.buildDynamic (coerce getV0) $ coerce e
2543− {-# INLINABLE headE #-}
2544− headE = R.slowHeadE
2545−-- headE (SpiderEvent e) = SpiderPushM $ SpiderEvent <$> Reflex.Spider.Internal.headE e
2546− {-# INLINABLE now #-}
2547− now = SpiderPushM nowSpiderEventM
2550−instance HasSpiderTimeline x => Monad (Reflex.Class.Dynamic (SpiderTimeline x)) where
2551− {-# INLINE return #-}
2553− {-# INLINE (>>=) #-}
2554− x >>= f = SpiderDynamic $ dynamicDynIdentity $ newJoinDyn $ newMapDyn (unSpiderDynamic . f) $ unSpiderDynamic x
2555− {-# INLINE (>>) #-}
2557−#if !MIN_VERSION_base(4,13,0)
2558− {-# INLINE fail #-}
2559− fail _ = error "Dynamic does not support 'fail'"
2562−{-# INLINABLE newJoinDyn #-}
2563−newJoinDyn :: HasSpiderTimeline x => DynamicS x (Identity (DynamicS x (Identity a))) -> Reflex.Spider.Internal.Dyn x (Identity a)
2565− let readV0 = readBehaviorTracked . dynamicCurrent =<< readBehaviorTracked (dynamicCurrent d)
2566− eOuter = Reflex.Spider.Internal.push (fmap (Just . Identity) . readBehaviorUntracked . dynamicCurrent . runIdentity) $ dynamicUpdated d
2567− eInner = Reflex.Spider.Internal.switch $ dynamicUpdated <$> dynamicCurrent d
2568− eBoth = Reflex.Spider.Internal.coincidence $ dynamicUpdated . runIdentity <$> dynamicUpdated d
2569− v' = unSpiderEvent $ Reflex.Class.leftmost $ map SpiderEvent [eBoth, eOuter, eInner]
2570− in Reflex.Spider.Internal.unsafeBuildDynamic readV0 v'
2572−instance HasSpiderTimeline x => Functor (Reflex.Class.Dynamic (SpiderTimeline x)) where
2573− fmap = mapDynamicSpider
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 #-}
2580−instance HasSpiderTimeline x => Applicative (Reflex.Class.Dynamic (SpiderTimeline x)) where
2581− pure = SpiderDynamic . dynamicConst
2582−#if MIN_VERSION_base(4,10,0)
2583− liftA2 f a b = SpiderDynamic $ Reflex.Spider.Internal.zipDynWith f (unSpiderDynamic a) (unSpiderDynamic b)
2585− SpiderDynamic a <*> SpiderDynamic b = SpiderDynamic $ Reflex.Spider.Internal.zipDynWith ($) a b
2586− a *> b = R.unsafeBuildDynamic (R.sample $ R.current b) $ R.leftmost [R.updated b, R.tag (R.current b) $ R.updated a]
2587− (<*) = flip (*>) -- There are no effects, so order doesn't matter
2589−holdSpiderEventM :: HasSpiderTimeline x => a -> Reflex.Class.Event (SpiderTimeline x) a -> EventM x (Reflex.Class.Behavior (SpiderTimeline x) a)
2590−holdSpiderEventM v0 e = fmap (SpiderBehavior . behaviorHoldIdentity) $ Reflex.Spider.Internal.hold v0 $ coerce $ unSpiderEvent e
2592−holdDynSpiderEventM :: HasSpiderTimeline x => a -> Reflex.Class.Event (SpiderTimeline x) a -> EventM x (Reflex.Class.Dynamic (SpiderTimeline x) a)
2593−holdDynSpiderEventM v0 e = fmap (SpiderDynamic . dynamicHoldIdentity) $ Reflex.Spider.Internal.hold v0 $ coerce $ unSpiderEvent e
2595−holdIncrementalSpiderEventM :: (HasSpiderTimeline x, Patch p) => PatchTarget p -> Reflex.Class.Event (SpiderTimeline x) p -> EventM x (Reflex.Class.Incremental (SpiderTimeline x) p)
2596−holdIncrementalSpiderEventM v0 e = fmap (SpiderIncremental . dynamicHold) $ Reflex.Spider.Internal.hold v0 $ unSpiderEvent e
2598−buildDynamicSpiderEventM :: HasSpiderTimeline x => SpiderPushM x a -> Reflex.Class.Event (SpiderTimeline x) a -> EventM x (Reflex.Class.Dynamic (SpiderTimeline x) a)
2599−buildDynamicSpiderEventM getV0 e = fmap (SpiderDynamic . dynamicDynIdentity) $ Reflex.Spider.Internal.buildDynamic (coerce getV0) $ coerce $ unSpiderEvent e
2601−instance HasSpiderTimeline x => Reflex.Class.MonadHold (SpiderTimeline x) (SpiderHost x) where
2602− {-# INLINABLE hold #-}
2603− hold v0 e = runFrame . runSpiderHostFrame $ Reflex.Class.hold v0 e
2604− {-# INLINABLE holdDyn #-}
2605− holdDyn v0 e = runFrame . runSpiderHostFrame $ Reflex.Class.holdDyn v0 e
2606− {-# INLINABLE holdIncremental #-}
2607− holdIncremental v0 e = runFrame . runSpiderHostFrame $ Reflex.Class.holdIncremental v0 e
2608− {-# INLINABLE buildDynamic #-}
2609− buildDynamic getV0 e = runFrame . runSpiderHostFrame $ Reflex.Class.buildDynamic getV0 e
2610− {-# INLINABLE headE #-}
2611− headE e = runFrame . runSpiderHostFrame $ Reflex.Class.headE e
2612− {-# INLINABLE now #-}
2613− now = runFrame . runSpiderHostFrame $ Reflex.Class.now
2616−instance HasSpiderTimeline x => Reflex.Class.MonadSample (SpiderTimeline x) (SpiderHostFrame x) where
2617− sample = SpiderHostFrame . readBehaviorUntracked . unSpiderBehavior --TODO: This can cause problems with laziness, so we should get rid of it if we can
2619−instance HasSpiderTimeline x => Reflex.Class.MonadHold (SpiderTimeline x) (SpiderHostFrame x) where
2620− {-# INLINABLE hold #-}
2621− hold v0 e = SpiderHostFrame $ fmap (SpiderBehavior . behaviorHoldIdentity) $ Reflex.Spider.Internal.hold v0 $ coerce $ unSpiderEvent e
2622− {-# INLINABLE holdDyn #-}
2623− holdDyn v0 e = SpiderHostFrame $ fmap (SpiderDynamic . dynamicHoldIdentity) $ Reflex.Spider.Internal.hold v0 $ coerce $ unSpiderEvent e
2624− {-# INLINABLE holdIncremental #-}
2625− holdIncremental v0 e = SpiderHostFrame $ fmap (SpiderIncremental . dynamicHold) $ Reflex.Spider.Internal.hold v0 $ unSpiderEvent e
2626− {-# INLINABLE buildDynamic #-}
2627− buildDynamic getV0 e = SpiderHostFrame $ fmap (SpiderDynamic . dynamicDynIdentity) $ Reflex.Spider.Internal.buildDynamic (coerce getV0) $ coerce $ unSpiderEvent e
2628− {-# INLINABLE headE #-}
2629− headE = R.slowHeadE
2630−-- headE (SpiderEvent e) = SpiderHostFrame $ SpiderEvent <$> Reflex.Spider.Internal.headE e
2631− {-# INLINABLE now #-}
2632− now = SpiderHostFrame Reflex.Class.now
2634−instance HasSpiderTimeline x => Reflex.Class.MonadSample (SpiderTimeline x) (SpiderHost x) where
2635− {-# INLINABLE sample #-}
2636− sample = runFrame . readBehaviorUntracked . unSpiderBehavior
2638−instance HasSpiderTimeline x => Reflex.Class.MonadSample (SpiderTimeline x) (Reflex.Spider.Internal.ReadPhase x) where
2639− {-# INLINABLE sample #-}
2640− sample = Reflex.Spider.Internal.ReadPhase . Reflex.Class.sample
2642−instance HasSpiderTimeline x => Reflex.Class.MonadHold (SpiderTimeline x) (Reflex.Spider.Internal.ReadPhase x) where
2643− {-# INLINABLE hold #-}
2644− hold v0 e = Reflex.Spider.Internal.ReadPhase $ Reflex.Class.hold v0 e
2645− {-# INLINABLE holdDyn #-}
2646− holdDyn v0 e = Reflex.Spider.Internal.ReadPhase $ Reflex.Class.holdDyn v0 e
2647− {-# INLINABLE holdIncremental #-}
2648− holdIncremental v0 e = Reflex.Spider.Internal.ReadPhase $ Reflex.Class.holdIncremental v0 e
2649− {-# INLINABLE buildDynamic #-}
2650− buildDynamic getV0 e = Reflex.Spider.Internal.ReadPhase $ Reflex.Class.buildDynamic getV0 e
2651− {-# INLINABLE headE #-}
2652− headE e = Reflex.Spider.Internal.ReadPhase $ Reflex.Class.headE e
2653− {-# INLINABLE now #-}
2654− now = Reflex.Spider.Internal.ReadPhase Reflex.Class.now
2656−--------------------------------------------------------------------------------
2658−--------------------------------------------------------------------------------
2660−-- | 'SpiderEnv' is the old name for 'SpiderTimeline'
2661−{-# DEPRECATED SpiderEnv "Use 'SpiderTimelineEnv' instead" #-}
2662−type SpiderEnv = SpiderTimeline
2663−instance HasSpiderTimeline x => Reflex.Host.Class.MonadSubscribeEvent (SpiderTimeline x) (SpiderHostFrame x) where
2664− {-# INLINABLE subscribeEvent #-}
2665− subscribeEvent e = SpiderHostFrame $ do
2666− --TODO: Unsubscribe eventually (manually and/or with weak ref)
2667− val <- liftIO $ newIORef Nothing
2668− subscription <- subscribe (unSpiderEvent e) $ Subscriber
2669− { subscriberPropagate = \a -> do
2670− liftIO $ writeIORef val $ Just a
2672− , subscriberInvalidateHeight = \_ -> return ()
2673− , subscriberRecalculateHeight = \_ -> return ()
2675− return $ SpiderEventHandle
2676− { spiderEventHandleSubscription = subscription
2677− , spiderEventHandleValue = val
2680−instance HasSpiderTimeline x => Reflex.Host.Class.ReflexHost (SpiderTimeline x) where
2681− type EventTrigger (SpiderTimeline x) = RootTrigger x
2682− type EventHandle (SpiderTimeline x) = SpiderEventHandle x
2683− type HostFrame (SpiderTimeline x) = SpiderHostFrame x
2685−instance HasSpiderTimeline x => Reflex.Host.Class.MonadReadEvent (SpiderTimeline x) (Reflex.Spider.Internal.ReadPhase x) where
2686− {-# NOINLINE readEvent #-}
2687− readEvent h = Reflex.Spider.Internal.ReadPhase $ fmap (fmap return) $ liftIO $ do
2688− result <- readIORef $ spiderEventHandleValue h
2692−instance HasSpiderTimeline x => Reflex.Host.Class.MonadReflexCreateTrigger (SpiderTimeline x) (SpiderHost x) where
2693− newEventWithTrigger = SpiderHost . fmap SpiderEvent . newEventWithTriggerIO
2694− newFanEventWithTrigger f = SpiderHost $ do
2695− es <- newFanEventWithTriggerIO f
2696− return $ Reflex.Class.EventSelector $ SpiderEvent . Reflex.Spider.Internal.select es
2698−instance HasSpiderTimeline x => Reflex.Host.Class.MonadReflexCreateTrigger (SpiderTimeline x) (SpiderHostFrame x) where
2699− newEventWithTrigger = SpiderHostFrame . EventM . liftIO . fmap SpiderEvent . newEventWithTriggerIO
2700− newFanEventWithTrigger f = SpiderHostFrame $ EventM $ liftIO $ do
2701− es <- newFanEventWithTriggerIO f
2702− return $ Reflex.Class.EventSelector $ SpiderEvent . Reflex.Spider.Internal.select es
2704−instance HasSpiderTimeline x => Reflex.Host.Class.MonadSubscribeEvent (SpiderTimeline x) (SpiderHost x) where
2705− {-# INLINABLE subscribeEvent #-}
2706− subscribeEvent = runFrame . runSpiderHostFrame . Reflex.Host.Class.subscribeEvent
2708−instance HasSpiderTimeline x => Reflex.Host.Class.MonadReflexHost (SpiderTimeline x) (SpiderHost x) where
2709− type ReadPhase (SpiderHost x) = Reflex.Spider.Internal.ReadPhase x
2710− fireEventsAndRead es (Reflex.Spider.Internal.ReadPhase a) = run es a
2711− runHostFrame = runFrame . runSpiderHostFrame
2713unsafeNewSpiderTimelineEnv :: forall x. IO (SpiderTimelineEnv x)
2264unsafeNewSpiderTimelineEnv :: forall x. IO (SpiderTimelineEnv x)
2714unsafeNewSpiderTimelineEnv = do
2265unsafeNewSpiderTimelineEnv = do
2715 lock <- newMVar ()
2266 lock <- newMVar ()
@@ -2717,7 +2268,7 @@ unsafeNewSpiderTimelineEnv = do
2717#ifdef DEBUG
2268#ifdef DEBUG
2718 depthRef <- newIORef 0
2269 depthRef <- newIORef 0
2720− return $ STE $ SpiderTimelineEnv
2271+ return $ SpiderTimelineEnv
2721 { _spiderTimeline_lock = lock
2272 { _spiderTimeline_lock = lock
2722 , _spiderTimeline_eventEnv = env
2273 , _spiderTimeline_eventEnv = env
2723#ifdef DEBUG
2274#ifdef DEBUG
@@ -2725,40 +2276,43 @@ unsafeNewSpiderTimelineEnv = do
2279+#ifndef SPECIALIZE_TO_SPIDERTIMELINE_GLOBAL
2728-- | Create a new SpiderTimelineEnv
2280-- | Create a new SpiderTimelineEnv
2729newSpiderTimeline :: IO (Some SpiderTimelineEnv)
2281newSpiderTimeline :: IO (Some SpiderTimelineEnv)
2730−newSpiderTimeline = withSpiderTimeline (pure . Some)
2282+newSpiderTimeline = withSpiderTimeline (pure . Some.This)
2732−data LocalSpiderTimeline (x :: Type) s
2284+data LocalSpiderTimeline x s
2734instance Reifies s (SpiderTimelineEnv x) =>
2286instance Reifies s (SpiderTimelineEnv x) =>
2735 HasSpiderTimeline (LocalSpiderTimeline x s) where
2287 HasSpiderTimeline (LocalSpiderTimeline x s) where
2736− spiderTimeline = localSpiderTimeline Proxy $ reflect (Proxy :: Proxy s)
2288+ spiderTimeline = localSpiderTimeline (Proxy :: Proxy s) $ reflect (Proxy :: Proxy s)
2738localSpiderTimeline
2290localSpiderTimeline
2739− :: proxy s
2291+ :: Proxy s
2740 -> SpiderTimelineEnv x
2292 -> SpiderTimelineEnv x
2741 -> SpiderTimelineEnv (LocalSpiderTimeline x s)
2293 -> SpiderTimelineEnv (LocalSpiderTimeline x s)
2742−localSpiderTimeline _ = coerce
2294+localSpiderTimeline _ = unsafeCoerce
2744-- | Pass a new timeline to the given function.
2296-- | Pass a new timeline to the given function.
2745withSpiderTimeline :: (forall x. HasSpiderTimeline x => SpiderTimelineEnv x -> IO r) -> IO r
2297withSpiderTimeline :: (forall x. HasSpiderTimeline x => SpiderTimelineEnv x -> IO r) -> IO r
2746withSpiderTimeline k = do
2298withSpiderTimeline k = do
2747 env <- unsafeNewSpiderTimelineEnv
2299 env <- unsafeNewSpiderTimelineEnv
2748 reify env $ \s -> k $ localSpiderTimeline s env
2300 reify env $ \s -> k $ localSpiderTimeline s env
2750−newtype SpiderPullM (x :: Type) a = SpiderPullM (BehaviorM x a) deriving (Functor, Applicative, Monad, MonadIO, MonadFix)
2303+newtype SpiderPullM x a = SpiderPullM (BehaviorM x a) deriving (Functor, Applicative, Monad, MonadIO, MonadFix)
2752type ComputeM = EventM
2305type ComputeM = EventM
2754−newtype SpiderPushM (x :: Type) a = SpiderPushM (ComputeM x a) deriving (Functor, Applicative, Monad, MonadIO, MonadFix)
2307+newtype SpiderPushM x a = SpiderPushM (ComputeM x a) deriving (Functor, Applicative, Monad, MonadIO, MonadFix)
2309+#ifndef SPECIALIZE_TO_SPIDERTIMELINE_GLOBAL
2756instance HasSpiderTimeline x => R.Reflex (SpiderTimeline x) where
2310instance HasSpiderTimeline x => R.Reflex (SpiderTimeline x) where
2757 {-# SPECIALIZE instance R.Reflex (SpiderTimeline Global) #-}
2311 {-# SPECIALIZE instance R.Reflex (SpiderTimeline Global) #-}
2758 newtype Behavior (SpiderTimeline x) a = SpiderBehavior { unSpiderBehavior :: Behavior x a }
2312 newtype Behavior (SpiderTimeline x) a = SpiderBehavior { unSpiderBehavior :: Behavior x a }
2759 newtype Event (SpiderTimeline x) a = SpiderEvent { unSpiderEvent :: Event x a }
2313 newtype Event (SpiderTimeline x) a = SpiderEvent { unSpiderEvent :: Event x a }
2760− newtype Dynamic (SpiderTimeline x) a = SpiderDynamic { unSpiderDynamic :: DynamicS x (Identity a) } -- deriving (Functor, Applicative, Monad)
2314+ newtype Dynamic (SpiderTimeline x) a = SpiderDynamic { unSpiderDynamic :: Dynamic x (Identity a) } -- deriving (Functor, Applicative, Monad)
2761− newtype Incremental (SpiderTimeline x) p = SpiderIncremental { unSpiderIncremental :: DynamicS x p }
2315+ newtype Incremental (SpiderTimeline x) p = SpiderIncremental { unSpiderIncremental :: Dynamic x p }
2762 type PullM (SpiderTimeline x) = SpiderPullM x
2316 type PullM (SpiderTimeline x) = SpiderPullM x
2763 type PushM (SpiderTimeline x) = SpiderPushM x
2317 type PushM (SpiderTimeline x) = SpiderPushM x
2764 {-# INLINABLE never #-}
2318 {-# INLINABLE never #-}
@@ -2771,15 +2325,10 @@ instance HasSpiderTimeline x => R.Reflex (SpiderTimeline x) where
2771 pushCheap f = SpiderEvent . pushCheap (coerce f) . unSpiderEvent
2325 pushCheap f = SpiderEvent . pushCheap (coerce f) . unSpiderEvent
2772 {-# INLINABLE pull #-}
2326 {-# INLINABLE pull #-}
2773 pull = SpiderBehavior . pull . coerce
2327 pull = SpiderBehavior . pull . coerce
2774− {-# INLINABLE fanG #-}
2328+ {-# INLINABLE merge #-}
2775− fanG e = R.EventSelectorG $ SpiderEvent . selectG (fanG (unSpiderEvent e))
2329+ merge = SpiderEvent . merge . dynamicConst . (coerce :: DMap k (R.Event (SpiderTimeline x)) -> DMap k (Event x))
2776− {-# INLINABLE mergeG #-}
2330+ {-# INLINABLE fan #-}
2777− mergeG
2331+ fan e = R.EventSelector $ SpiderEvent . select (fan (unSpiderEvent e))
2778− :: forall k2 (k :: k2 -> *) q (v :: k2 -> *). GCompare k
2779− => (forall a. q a -> R.Event (SpiderTimeline x) (v a))
2781− -> R.Event (SpiderTimeline x) (DMap k v)
2782− mergeG nt = SpiderEvent . mergeG (unSpiderEvent #. nt) . dynamicConst
2783 {-# INLINABLE switch #-}
2332 {-# INLINABLE switch #-}
2784 switch = SpiderEvent . switch . (coerce :: Behavior x (R.Event (SpiderTimeline x) a) -> Behavior x (Event x a)) . unSpiderBehavior
2333 switch = SpiderEvent . switch . (coerce :: Behavior x (R.Event (SpiderTimeline x) a) -> Behavior x (Event x a)) . unSpiderBehavior
2785 {-# INLINABLE coincidence #-}
2334 {-# INLINABLE coincidence #-}
@@ -2787,15 +2336,15 @@ instance HasSpiderTimeline x => R.Reflex (SpiderTimeline x) where
2787 {-# INLINABLE current #-}
2336 {-# INLINABLE current #-}
2788 current = SpiderBehavior . dynamicCurrent . unSpiderDynamic
2337 current = SpiderBehavior . dynamicCurrent . unSpiderDynamic
2789 {-# INLINABLE updated #-}
2338 {-# INLINABLE updated #-}
2790− updated = SpiderEvent #. dynamicUpdated .# fmap coerce . unSpiderDynamic
2339+ updated = coerce $ SpiderEvent . dynamicUpdated . unSpiderDynamic
2791 {-# INLINABLE unsafeBuildDynamic #-}
2340 {-# INLINABLE unsafeBuildDynamic #-}
2792 unsafeBuildDynamic readV0 v' = SpiderDynamic $ dynamicDynIdentity $ unsafeBuildDynamic (coerce readV0) $ coerce $ unSpiderEvent v'
2341 unsafeBuildDynamic readV0 v' = SpiderDynamic $ dynamicDynIdentity $ unsafeBuildDynamic (coerce readV0) $ coerce $ unSpiderEvent v'
2793 {-# INLINABLE unsafeBuildIncremental #-}
2342 {-# INLINABLE unsafeBuildIncremental #-}
2794 unsafeBuildIncremental readV0 dv = SpiderIncremental $ dynamicDyn $ unsafeBuildDynamic (coerce readV0) $ unSpiderEvent dv
2343 unsafeBuildIncremental readV0 dv = SpiderIncremental $ dynamicDyn $ unsafeBuildDynamic (coerce readV0) $ unSpiderEvent dv
2795− {-# INLINABLE mergeIncrementalG #-}
2344+ {-# INLINABLE mergeIncremental #-}
2796− mergeIncrementalG nt = SpiderEvent #. mergeG (coerce #. nt) .# unSpiderIncremental
2345+ mergeIncremental = SpiderEvent . merge . (unsafeCoerce :: Dynamic x (PatchDMap k (R.Event (SpiderTimeline x))) -> Dynamic x (PatchDMap k (Event x))) . unSpiderIncremental
2797− {-# INLINABLE mergeIncrementalWithMoveG #-}
2346+ {-# INLINABLE mergeIncrementalWithMove #-}
2798− mergeIncrementalWithMoveG nt = SpiderEvent #. mergeWithMove (coerce #. nt) .# unSpiderIncremental
2347+ mergeIncrementalWithMove = SpiderEvent . mergeWithMove . (unsafeCoerce :: Dynamic x (PatchDMapWithMove k (R.Event (SpiderTimeline x))) -> Dynamic x (PatchDMapWithMove k (Event x))) . unSpiderIncremental
2799 {-# INLINABLE currentIncremental #-}
2348 {-# INLINABLE currentIncremental #-}
2800 currentIncremental = SpiderBehavior . dynamicCurrent . unSpiderIncremental
2349 currentIncremental = SpiderBehavior . dynamicCurrent . unSpiderIncremental
2801 {-# INLINABLE updatedIncremental #-}
2350 {-# INLINABLE updatedIncremental #-}
@@ -2806,12 +2355,12 @@ instance HasSpiderTimeline x => R.Reflex (SpiderTimeline x) where
2806 return $ Identity <$> apply p c --TODO: Avoid the redundant 'apply'
2355 return $ Identity <$> apply p c --TODO: Avoid the redundant 'apply'
2807 eventCoercion Coercion = Coercion
2356 eventCoercion Coercion = Coercion
2808 behaviorCoercion Coercion = Coercion
2357 behaviorCoercion Coercion = Coercion
2809− dynamicCoercion Coercion = Coercion
2358+ dynamicCoercion = unsafeCoerce --TODO: How can we avoid this unsafeCoerce? This is safe only because we know how Identity works as a Patch instance
2810− incrementalCoercion Coercion Coercion = Coercion
2811 {-# INLINABLE mergeIntIncremental #-}
2359 {-# INLINABLE mergeIntIncremental #-}
2812− mergeIntIncremental = SpiderEvent . mergeInt . coerce
2360+ mergeIntIncremental = SpiderEvent . mergeInt . (unsafeCoerce :: Dynamic x (PatchIntMap (R.Event (SpiderTimeline x) a)) -> Dynamic x (PatchIntMap (Event x a))) . unSpiderIncremental
2813 {-# INLINABLE fanInt #-}
2361 {-# INLINABLE fanInt #-}
2814 fanInt e = R.EventSelectorInt $ SpiderEvent . selectInt (fanInt (unSpiderEvent e))
2362 fanInt e = R.EventSelectorInt $ SpiderEvent . selectInt (fanInt (unSpiderEvent e))
2816data RootTrigger x a = forall k. GCompare k => RootTrigger (WeakBag (Subscriber x a), IORef (DMap k Identity), k a)
2365data RootTrigger x a = forall k. GCompare k => RootTrigger (WeakBag (Subscriber x a), IORef (DMap k Identity), k a)
@@ -2834,7 +2383,7 @@ instance MonadAtomicRef (EventM x) where
2834 atomicModifyRef r f = liftIO $ atomicModifyRef r f
2383 atomicModifyRef r f = liftIO $ atomicModifyRef r f
2836-- | The monad for actions that manipulate a Spider timeline identified by @x@
2385-- | The monad for actions that manipulate a Spider timeline identified by @x@
2837−newtype SpiderHost (x :: Type) a = SpiderHost { unSpiderHost :: IO a } deriving (Functor, Applicative, MonadFix, MonadIO, MonadException, MonadAsyncException)
2386+newtype SpiderHost x a = SpiderHost { unSpiderHost :: ReaderT (SpiderTimelineEnv x) IO a } deriving (Functor, Applicative, MonadFix, MonadIO, MonadException, MonadAsyncException)
2839instance Monad (SpiderHost x) where
2388instance Monad (SpiderHost x) where
2840 {-# INLINABLE (>>=) #-}
2389 {-# INLINABLE (>>=) #-}
@@ -2843,27 +2392,22 @@ instance Monad (SpiderHost x) where
2843 SpiderHost x >> SpiderHost y = SpiderHost $ x >> y
2392 SpiderHost x >> SpiderHost y = SpiderHost $ x >> y
2844 {-# INLINABLE return #-}
2393 {-# INLINABLE return #-}
2845 return x = SpiderHost $ return x
2394 return x = SpiderHost $ return x
2846−#if !MIN_VERSION_base(4,13,0)
2847 {-# INLINABLE fail #-}
2395 {-# INLINABLE fail #-}
2848− fail = MonadFail.fail
2851−instance MonadFail (SpiderHost x) where
2852− {-# INLINABLE fail #-}
2853− fail s = SpiderHost $ MonadFail.fail s
2396+ fail s = SpiderHost $ fail s
2855-- | Run an action affecting the global Spider timeline; this will be guarded by
2398-- | Run an action affecting the global Spider timeline; this will be guarded by
2856-- a mutex for that timeline
2399-- a mutex for that timeline
2857runSpiderHost :: SpiderHost Global a -> IO a
2400runSpiderHost :: SpiderHost Global a -> IO a
2858−runSpiderHost (SpiderHost a) = a
2401+runSpiderHost (SpiderHost a) = runReaderT a globalSpiderTimelineEnv
2403+#ifndef SPECIALIZE_TO_SPIDERTIMELINE_GLOBAL
2860-- | Run an action affecting a given Spider timeline; this will be guarded by a
2404-- | Run an action affecting a given Spider timeline; this will be guarded by a
2861-- mutex for that timeline
2405-- mutex for that timeline
2862runSpiderHostForTimeline :: SpiderHost x a -> SpiderTimelineEnv x -> IO a
2406runSpiderHostForTimeline :: SpiderHost x a -> SpiderTimelineEnv x -> IO a
2863−runSpiderHostForTimeline (SpiderHost a) _ = a
2407+runSpiderHostForTimeline (SpiderHost a) = runReaderT a
2865−newtype SpiderHostFrame (x :: Type) a = SpiderHostFrame { runSpiderHostFrame :: EventM x a }
2866− deriving (Functor, Applicative, MonadFix, MonadIO, MonadException, MonadAsyncException)
2410+newtype SpiderHostFrame x a = SpiderHostFrame { runSpiderHostFrame :: EventM x a } deriving (Functor, Applicative, MonadFix, MonadIO, MonadException, MonadAsyncException)
2868instance Monad (SpiderHostFrame x) where
2412instance Monad (SpiderHostFrame x) where
2869 {-# INLINABLE (>>=) #-}
2413 {-# INLINABLE (>>=) #-}
@@ -2872,21 +2416,15 @@ instance Monad (SpiderHostFrame x) where
2872 SpiderHostFrame x >> SpiderHostFrame y = SpiderHostFrame $ x >> y
2416 SpiderHostFrame x >> SpiderHostFrame y = SpiderHostFrame $ x >> y
2873 {-# INLINABLE return #-}
2417 {-# INLINABLE return #-}
2874 return x = SpiderHostFrame $ return x
2418 return x = SpiderHostFrame $ return x
2875−#if !MIN_VERSION_base(4,13,0)
2876 {-# INLINABLE fail #-}
2419 {-# INLINABLE fail #-}
2877 fail s = SpiderHostFrame $ fail s
2420 fail s = SpiderHostFrame $ fail s
2880−instance NotReady (SpiderTimeline x) (SpiderHostFrame x) where
2881− notReadyUntil _ = pure ()
2884−newEventWithTriggerIO :: forall x a. HasSpiderTimeline x => (RootTrigger x a -> IO (IO ())) -> IO (Event x a)
2422+newEventWithTriggerIO :: (RootTrigger x a -> IO (IO ())) -> IO (Event x a)
2885newEventWithTriggerIO f = do
2423newEventWithTriggerIO f = do
2886 es <- newFanEventWithTriggerIO $ \Refl -> f
2424 es <- newFanEventWithTriggerIO $ \Refl -> f
2887 return $ select es Refl
2425 return $ select es Refl
2889−newFanEventWithTriggerIO :: (HasSpiderTimeline x, GCompare k) => (forall a. k a -> RootTrigger x a -> IO (IO ())) -> IO (EventSelector x k)
2427+newFanEventWithTriggerIO :: GCompare k => (forall a. k a -> RootTrigger x a -> IO (IO ())) -> IO (EventSelector x k)
2890newFanEventWithTriggerIO f = do
2428newFanEventWithTriggerIO f = do
2891 occRef <- newIORef DMap.empty
2429 occRef <- newIORef DMap.empty
2892 subscribedRef <- newIORef DMap.empty
2430 subscribedRef <- newIORef DMap.empty
@@ -2920,11 +2458,3 @@ instance MonadAtomicRef (SpiderHostFrame x) where
2920instance PrimMonad (SpiderHostFrame x) where
2458instance PrimMonad (SpiderHostFrame x) where
2921 type PrimState (SpiderHostFrame x) = PrimState IO
2459 type PrimState (SpiderHostFrame x) = PrimState IO
2922 primitive = SpiderHostFrame . EventM . primitive
2460 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 ()