@@ -9,40 +9,49 @@
9{-# LANGUAGE GADTs #-}
9{-# LANGUAGE GADTs #-}
10{-# LANGUAGE GeneralizedNewtypeDeriving #-}
10{-# LANGUAGE GeneralizedNewtypeDeriving #-}
11{-# LANGUAGE LambdaCase #-}
11{-# LANGUAGE LambdaCase #-}
12−{-# LANGUAGE MagicHash #-}
13−{-# LANGUAGE MultiParamTypeClasses #-}
14−{-# LANGUAGE MultiWayIf #-}
15{-# LANGUAGE RankNTypes #-}
12{-# LANGUAGE RankNTypes #-}
16{-# LANGUAGE RoleAnnotations #-}
13{-# LANGUAGE RoleAnnotations #-}
17{-# LANGUAGE ScopedTypeVariables #-}
14{-# LANGUAGE ScopedTypeVariables #-}
18{-# LANGUAGE TypeFamilies #-}
15{-# LANGUAGE TypeFamilies #-}
19{-# LANGUAGE TypeOperators #-}
16{-# LANGUAGE TypeOperators #-}
20{-# LANGUAGE UndecidableInstances #-}
17{-# LANGUAGE UndecidableInstances #-}
18+{-# LANGUAGE PolyKinds #-}
19+{-# LANGUAGE DeriveFunctor #-}
20+{-# LANGUAGE StandaloneDeriving #-}
21+{-# LANGUAGE InstanceSigs #-}
22+{-# LANGUAGE MultiWayIf #-}
21#ifdef USE_REFLEX_OPTIMIZER
24#ifdef USE_REFLEX_OPTIMIZER
22{-# OPTIONS_GHC -fplugin=Reflex.Optimizer #-}
25{-# OPTIONS_GHC -fplugin=Reflex.Optimizer #-}
24−#ifdef SPECIALIZE_TO_SPIDERTIMELINE_GLOBAL
25−{-# OPTIONS_GHC -fno-warn-orphans #-}
27+{-# OPTIONS_GHC -Wunused-binds #-}
27-- | This module is the implementation of the 'Spider' 'Reflex' engine. It uses
28-- | This module is the implementation of the 'Spider' 'Reflex' engine. It uses
28-- a graph traversal algorithm to propagate 'Event's and 'Behavior's.
29-- a graph traversal algorithm to propagate 'Event's and 'Behavior's.
29module Reflex.Spider.Internal (module Reflex.Spider.Internal) where
30module Reflex.Spider.Internal (module Reflex.Spider.Internal) where
32+#if MIN_VERSION_base(4,10,0)
31−import Control.Applicative
33+import Control.Applicative (liftA2)
32import Control.Concurrent
35import Control.Concurrent
33import Control.Exception
36import Control.Exception
34−import Control.Monad hiding (forM, forM_, mapM, mapM_, sequence)
37+import Control.Monad hiding (forM, forM_, mapM, mapM_)
35import Control.Monad.Exception
38import Control.Monad.Exception
36−import Control.Monad.Identity hiding (forM, forM_, mapM, mapM_, sequence)
39+import Control.Monad.Identity hiding (forM, forM_, mapM, mapM_)
37import Control.Monad.Primitive
40import Control.Monad.Primitive
38−import Control.Monad.Reader hiding (forM, forM_, mapM, mapM_, sequence)
41+import Control.Monad.Reader.Class
42+import Control.Monad.IO.Class
43+import Control.Monad.ReaderIO
39import Control.Monad.Ref
44import Control.Monad.Ref
45+import Control.Monad.Fail (MonadFail)
46+import qualified Control.Monad.Fail as MonadFail
40import Data.Align
47import Data.Align
41import Data.Coerce
48import Data.Coerce
42−import Data.Dependent.Map (DMap, DSum (..))
49+import Data.Dependent.Map (DMap)
43import qualified Data.Dependent.Map as DMap
50import qualified Data.Dependent.Map as DMap
51+import Data.Dependent.Sum (DSum (..))
52+import Data.FastMutableIntMap (FastMutableIntMap, PatchIntMap (..))
53+import qualified Data.FastMutableIntMap as FastMutableIntMap
44import Data.Foldable hiding (concat, elem, sequence_)
54import Data.Foldable hiding (concat, elem, sequence_)
46import Data.Functor.Constant
55import Data.Functor.Constant
47import Data.Functor.Misc
56import Data.Functor.Misc
48import Data.Functor.Product
57import Data.Functor.Product
@@ -50,63 +59,73 @@ import Data.GADT.Compare
50import Data.IntMap.Strict (IntMap)
59import Data.IntMap.Strict (IntMap)
51import qualified Data.IntMap.Strict as IntMap
60import qualified Data.IntMap.Strict as IntMap
52import Data.IORef
61import Data.IORef
53−import Data.List hiding (foldl')
62+import Data.Kind (Type)
54−import Data.Maybe
63+import Data.Maybe hiding (mapMaybe)
55−import Data.Monoid ((<>))
64+import Data.Monoid (mempty, (<>))
56import Data.Proxy
65import Data.Proxy
57import Data.These
66import Data.These
58import Data.Traversable
67import Data.Traversable
59−import Data.Word
68+import Data.Type.Equality ((:~:)(Refl))
60−import Data.FastMutableIntMap (FastMutableIntMap, PatchIntMap (..))
69+import Data.Witherable (Filterable, mapMaybe)
61−import qualified Data.FastMutableIntMap as FastMutableIntMap
62−import GHC.Exts
70+import GHC.Exts hiding (toList)
63import GHC.IORef (IORef (..))
71import GHC.IORef (IORef (..))
64import GHC.Stack
72import GHC.Stack
65import Reflex.FastWeak
73import Reflex.FastWeak
66−import Reflex.FunctorMaybe
67import System.IO.Unsafe
74import System.IO.Unsafe
68import System.Mem.Weak
75import System.Mem.Weak
69import Unsafe.Coerce
76import Unsafe.Coerce
78+#ifdef MIN_VERSION_semialign
79+#if MIN_VERSION_these(0,8,0)
80+import Data.These.Combinators (justThese)
82+#if MIN_VERSION_semialign(1,1,0)
83+import Data.Zip (Zip (..))
71#ifdef DEBUG_CYCLES
87#ifdef DEBUG_CYCLES
72import Control.Monad.State hiding (forM, forM_, mapM, mapM_, sequence)
88import Control.Monad.State hiding (forM, forM_, mapM, mapM_, sequence)
73import Data.List.NonEmpty (NonEmpty (..), nonEmpty)
91import Data.List.NonEmpty (NonEmpty (..), nonEmpty)
74import qualified Data.List.NonEmpty as NonEmpty
92import qualified Data.List.NonEmpty as NonEmpty
75−import Data.Monoid (mempty)
76import Data.Tree (Forest, Tree (..), drawForest)
93import Data.Tree (Forest, Tree (..), drawForest)
77−#endif
94+import Data.List (isPrefixOf)
79−import Data.FastWeakBag (FastWeakBag)
96+import Data.FastWeakBag (FastWeakBag, FastWeakBagTicket)
80import qualified Data.FastWeakBag as FastWeakBag
97import qualified Data.FastWeakBag as FastWeakBag
81−import Data.WeakBag (WeakBag, WeakBagTicket, _weakBag_children)
98+
82−import qualified Data.WeakBag as WeakBag
83−#ifndef SPECIALIZE_TO_SPIDERTIMELINE_GLOBAL
84import Data.Reflection
99import Data.Reflection
85−import Data.Some (Some)
100+import Data.Some (Some(Some))
86−import qualified Data.Some as Some
87import Data.Type.Coercion
101import Data.Type.Coercion
102+import Data.Profunctor.Unsafe ((#.), (.#))
103+import Data.WeakBag (WeakBag, WeakBagTicket, _weakBag_children)
104+import qualified Data.WeakBag as WeakBag
88import qualified Reflex.Class
105import qualified Reflex.Class
89import qualified Reflex.Class as R
106import qualified Reflex.Class as R
90import qualified Reflex.Host.Class
107import qualified Reflex.Host.Class
92import Reflex.NotReady.Class
108import Reflex.NotReady.Class
93−import Reflex.Patch
109+import Data.Patch
94−import qualified Reflex.Patch.DMapWithMove as PatchDMapWithMove
110+import qualified Data.Patch.DMapWithMove as PatchDMapWithMove
95−
111+import Reflex.PerformEvent.Base (PerformEventT)
96−-- Note: must come last to silence warnings due to AMP on GHC < 7.10
97−import Prelude hiding (any, concat, mapM, mapM_, sequence)
99#ifdef DEBUG_TRACE_EVENTS
113#ifdef DEBUG_TRACE_EVENTS
100−import System.IO (stderr)
101import qualified Data.ByteString.Char8 as BS8
114import qualified Data.ByteString.Char8 as BS8
115+import System.IO (stderr)
116+import Data.List (isPrefixOf)
104−#ifdef DEBUG_TRACE_EVENTS
119+-- TODO stdout might not be the best channel for debug output
120+debugStrLn :: String -> IO ()
121+debugStrLn = putStrLn
123+#ifdef DEBUG_TRACE_EVENTS
106withStackOneLine :: (BS8.ByteString -> a) -> a
124withStackOneLine :: (BS8.ByteString -> a) -> a
107withStackOneLine expr = unsafePerformIO $ do
125withStackOneLine expr = unsafePerformIO $ do
108 stack <- currentCallStack
126 stack <- currentCallStack
109− return (expr (BS8.pack (unwords (reverse stack))))
127+ return (expr . BS8.pack . unwords . dropInternal . reverse $ stack)
128+ where dropInternal = filterStack "Reflex.Spider.Internal"
@@ -117,28 +136,42 @@ debugInvalidateHeight :: Bool
117debugInvalidate :: Bool
136debugInvalidate :: Bool
119#ifdef DEBUG
138#ifdef DEBUG
121#define DEBUG_NODEIDS
139#define DEBUG_NODEIDS
141+#ifdef DEBUG_TRACE_PROPAGATION
123debugPropagate = True
142debugPropagate = True
144+debugPropagate = False
147+#ifdef DEBUG_TRACE_HEIGHT
148+debugInvalidateHeight = True
125debugInvalidateHeight = False
150debugInvalidateHeight = False
153+#ifdef DEBUG_TRACE_INVALIDATION
127debugInvalidate = True
154debugInvalidate = True
156+debugInvalidate = False
129class HasNodeId a where
159class HasNodeId a where
130 getNodeId :: a -> Int
160 getNodeId :: a -> Int
132−instance HasNodeId (Hold x p a) where
162+instance HasNodeId (CacheSubscribed x a) where
133− getNodeId = holdNodeId
163+ getNodeId = _cacheSubscribed_nodeId
135−instance HasNodeId (PushSubscribed x a b) where
165+instance HasNodeId (FanInt x a) where
136− getNodeId = pushSubscribedNodeId
166+ getNodeId = _fanInt_nodeId
168+instance HasNodeId (Hold x p) where
169+ getNodeId = holdNodeId
138instance HasNodeId (SwitchSubscribed x a) where
171instance HasNodeId (SwitchSubscribed x a) where
139 getNodeId = switchSubscribedNodeId
172 getNodeId = switchSubscribedNodeId
141−instance HasNodeId (FanSubscribed x a) where
174+instance HasNodeId (FanSubscribed x v a) where
142 getNodeId = fanSubscribedNodeId
175 getNodeId = fanSubscribedNodeId
144instance HasNodeId (CoincidenceSubscribed x a) where
177instance HasNodeId (CoincidenceSubscribed x a) where
@@ -152,41 +185,16 @@ instance HasNodeId (Pull x a) where
153{-# INLINE showNodeId #-}
186{-# INLINE showNodeId #-}
154showNodeId :: HasNodeId a => a -> String
187showNodeId :: HasNodeId a => a -> String
155−showNodeId = ("#"<>) . show . getNodeId
188+showNodeId = showNodeId' . getNodeId
157−showSubscriberType :: Subscriber x a -> String
190+showNodeId' :: Int -> String
158−showSubscriberType = \case
191+showNodeId' = ("#"<>) . show
159− SubscriberPush _ _ -> "SubscriberPush"
192+
160− SubscriberMerge _ _ -> "SubscriberMerge"
161− SubscriberFan _ -> "SubscriberFan"
162− SubscriberMergeChange _ -> "SubscriberMergeChange"
163− SubscriberHold _ -> "SubscriberHold"
164− SubscriberHoldIdentity _ -> "SubscriberHoldIdentity"
165− SubscriberSwitch _ -> "SubscriberSwitch"
166− SubscriberCoincidenceOuter _ -> "SubscriberCoincidenceOuter"
167− SubscriberCoincidenceInner _ -> "SubscriberCoincidenceInner"
168− SubscriberHandle -> "SubscriberHandle"
170−showEventType :: Event x a -> String
171−showEventType = \case
172− EventRoot _ _ -> "EventRoot"
173− EventNever -> "EventNever"
174− EventPush _ -> "EventPush"
175− EventMerge _ -> "EventMerge"
176− EventFan _ _ -> "EventFan"
177− EventSwitch _ -> "EventSwitch"
178− EventCoincidence _ -> "EventCoincidence"
179− EventHold _ -> "EventHold"
180− EventDyn _ -> "EventDyn"
181− EventHoldIdentity _ -> "EventHoldIdentity"
182− EventDynIdentity _ -> "EventDynIdentity"
186debugPropagate = False
196debugPropagate = False
188debugInvalidateHeight = False
197debugInvalidateHeight = False
190debugInvalidate = False
198debugInvalidate = False
192-- This must be inline, or error messages will cause memory leaks due to retaining the node in question
200-- This must be inline, or error messages will cause memory leaks due to retaining the node in question
@@ -194,6 +202,10 @@ debugInvalidate = False
194showNodeId :: a -> String
202showNodeId :: a -> String
195showNodeId _ = ""
203showNodeId _ = ""
205+{-# INLINE showNodeId' #-}
206+showNodeId' :: Int -> String
199#ifdef DEBUG_NODEIDS
211#ifdef DEBUG_NODEIDS
@@ -203,12 +215,6 @@ nextNodeIdRef = unsafePerformIO $ newIORef 1
204newNodeId :: IO Int
216newNodeId :: IO Int
205newNodeId = atomicModifyIORef' nextNodeIdRef $ \n -> (succ n, n)
217newNodeId = atomicModifyIORef' nextNodeIdRef $ \n -> (succ n, n)
207−{-# NOINLINE unsafeNodeId #-}
208−unsafeNodeId :: a -> Int
209−unsafeNodeId a = unsafePerformIO $ do
214--------------------------------------------------------------------------------
220--------------------------------------------------------------------------------
@@ -247,7 +253,7 @@ subscribeAndRead = unEvent
247{-# INLINE [1] pushCheap #-}
253{-# INLINE [1] pushCheap #-}
248pushCheap :: HasSpiderTimeline x => (a -> ComputeM x (Maybe b)) -> Event x a -> Event x b
254pushCheap :: HasSpiderTimeline x => (a -> ComputeM x (Maybe b)) -> Event x a -> Event x b
249pushCheap !f e = Event $ \sub -> do
255pushCheap !f e = Event $ \sub -> do
250− (subscription, occ) <- subscribeAndRead e $ sub
256+ (subscription, occ) <- subscribeAndRead e $ debugSubscriber' "push" $ sub
251 { subscriberPropagate = \a -> do
257 { subscriberPropagate = \a -> do
252 mb <- f a
258 mb <- f a
253 mapM_ (subscriberPropagate sub) mb
259 mapM_ (subscriberPropagate sub) mb
@@ -266,10 +272,10 @@ terminalSubscriber p = Subscriber
267-- | Subscribe to an Event only for the duration of one occurrence
273-- | Subscribe to an Event only for the duration of one occurrence
268{-# INLINE subscribeAndReadHead #-}
274{-# INLINE subscribeAndReadHead #-}
269−subscribeAndReadHead :: Event x a -> Subscriber x a -> EventM x (EventSubscription x, Maybe a)
275+subscribeAndReadHead :: HasSpiderTimeline x => Event x a -> Subscriber x a -> EventM x (EventSubscription x, Maybe a)
270subscribeAndReadHead e sub = do
276subscribeAndReadHead e sub = do
271 subscriptionRef <- liftIO $ newIORef $ error "subscribeAndReadHead: not initialized"
277 subscriptionRef <- liftIO $ newIORef $ error "subscribeAndReadHead: not initialized"
272− (subscription, occ) <- subscribeAndRead e $ sub
278+ (subscription, occ) <- subscribeAndRead e $ debugSubscriber' "head" $ sub
273 { subscriberPropagate = \a -> do
279 { subscriberPropagate = \a -> do
274 liftIO $ unsubscribe =<< readIORef subscriptionRef
280 liftIO $ unsubscribe =<< readIORef subscriptionRef
275 subscriberPropagate sub a
281 subscriberPropagate sub a
@@ -280,24 +286,42 @@ subscribeAndReadHead e sub = do
280 return (subscription, occ)
286 return (subscription, occ)
282--TODO: Make this lazy in its input event
288--TODO: Make this lazy in its input event
283−headE :: (MonadIO m, Defer (SomeMergeInit x) m) => Event x a -> m (Event x a)
289+headE :: (MonadIO m, Defer (SomeMergeInit x) m, HasSpiderTimeline x) => Event x a -> m (Event x a)
284headE originalE = do
290headE originalE = do
285 parent <- liftIO $ newIORef $ Just originalE
291 parent <- liftIO $ newIORef $ Just originalE
286 defer $ SomeMergeInit $ do --TODO: Rename SomeMergeInit appropriately
292 defer $ SomeMergeInit $ do --TODO: Rename SomeMergeInit appropriately
287 let clearParent = liftIO $ writeIORef parent Nothing
293 let clearParent = liftIO $ writeIORef parent Nothing
288− (_, occ) <- subscribeAndReadHead originalE $ terminalSubscriber $ \_ -> clearParent
294+ (_, occ) <- subscribeAndReadHead originalE $ terminalSubscriber $ const clearParent
289 when (isJust occ) clearParent
295 when (isJust occ) clearParent
290− return $ Event $ \sub -> do
296+ return $ Event $ \sub ->
291 liftIO (readIORef parent) >>= \case
297 liftIO (readIORef parent) >>= \case
292− Nothing -> return (EventSubscription (return ()) $ EventSubscribed zeroRef $ toAny (), Nothing)
298+ Nothing -> subscribeAndReadNever
293 Just e -> subscribeAndReadHead e sub
299 Just e -> subscribeAndReadHead e sub
295data CacheSubscribed x a
301data CacheSubscribed x a
296 = CacheSubscribed { _cacheSubscribed_subscribers :: {-# UNPACK #-} !(FastWeakBag (Subscriber x a))
302 = CacheSubscribed { _cacheSubscribed_subscribers :: {-# UNPACK #-} !(FastWeakBag (Subscriber x a))
297 , _cacheSubscribed_parent :: {-# UNPACK #-} !(EventSubscription x)
303 , _cacheSubscribed_parent :: {-# UNPACK #-} !(EventSubscription x)
298 , _cacheSubscribed_occurrence :: {-# UNPACK #-} !(IORef (Maybe a))
304 , _cacheSubscribed_occurrence :: {-# UNPACK #-} !(IORef (Maybe a))
306+ , _cacheSubscribed_nodeId :: {-# UNPACK #-} !Int
310+nowSpiderEventM :: (HasSpiderTimeline x) => EventM x (R.Event (SpiderTimeline x) ())
314+now :: (MonadIO m, Defer (Some Clear) m, HasSpiderTimeline x
317+ nowOrNot <- liftIO $ newIORef $ Just ()
318+ scheduleClear nowOrNot
319+ return . Event $ \_ -> do
320+ occ <- liftIO . readIORef $ nowOrNot
321+ return ( EventSubscription (return ()) eventSubscribedNow
301-- | Construct an 'Event' whose value is guaranteed not to be recomputed
325-- | Construct an 'Event' whose value is guaranteed not to be recomputed
302-- repeatedly
326-- repeatedly
@@ -312,27 +336,33 @@ cacheEvent e =
339+ unsafePerformIO $ do
315− let mSubscribedRef :: IORef (FastWeak (CacheSubscribed x a))
340+ mSubscribedRef :: IORef (FastWeak (CacheSubscribed x a))
316− !mSubscribedRef = unsafeNewIORef e emptyFastWeak
341+ <- newIORef emptyFastWeak
317− in \sub -> {-# SCC "cacheEvent" #-} do
342+ pure $ \sub -> {-# SCC "cacheEvent" #-} do
318#ifdef DEBUG_TRACE_EVENTS
343#ifdef DEBUG_TRACE_EVENTS
319 unless (BS8.null callSite) $ liftIO $ BS8.hPutStrLn stderr callSite
344 unless (BS8.null callSite) $ liftIO $ BS8.hPutStrLn stderr callSite
321 subscribedTicket <- liftIO (readIORef mSubscribedRef >>= getFastWeakTicket) >>= \case
346 subscribedTicket <- liftIO (readIORef mSubscribedRef >>= getFastWeakTicket) >>= \case
322 Just subscribedTicket -> return subscribedTicket
347 Just subscribedTicket -> return subscribedTicket
323 Nothing -> do
348 Nothing -> do
350+ nodeId <- liftIO newNodeId
324 subscribers <- liftIO FastWeakBag.empty
352 subscribers <- liftIO FastWeakBag.empty
325 occRef <- liftIO $ newIORef Nothing -- This should never be read prior to being set below
353 occRef <- liftIO $ newIORef Nothing -- This should never be read prior to being set below
355+ (parentSub, occ) <- subscribeAndRead e $ debugSubscriber' ("cacheEvent" <> showNodeId' nodeId) $ Subscriber
326 (parentSub, occ) <- subscribeAndRead e $ Subscriber
357 (parentSub, occ) <- subscribeAndRead e $ Subscriber
327− { subscriberPropagate = \a -> do
359+ { subscriberPropagate = \a -> do
328− liftIO $ writeIORef occRef $ Just a
360+ liftIO $ writeIORef occRef (Just a)
329− scheduleClear occRef
361+ scheduleClear occRef
330− propagateFast a subscribers
362+ propagateFast a subscribers
331− , subscriberInvalidateHeight = \old -> do
332− FastWeakBag.traverse subscribers $ invalidateSubscriberHeight old
363+ , subscriberInvalidateHeight = FastWeakBag.traverse_ subscribers . invalidateSubscriberHeight
333− , subscriberRecalculateHeight = \new -> do
334− FastWeakBag.traverse subscribers $ recalculateSubscriberHeight new
364+ , subscriberRecalculateHeight = FastWeakBag.traverse_ subscribers . recalculateSubscriberHeight
336 when (isJust occ) $ do
366 when (isJust occ) $ do
337 liftIO $ writeIORef occRef occ -- Set the initial value of occRef; we don't need to do this if occ is Nothing
367 liftIO $ writeIORef occRef occ -- Set the initial value of occRef; we don't need to do this if occ is Nothing
338 scheduleClear occRef
368 scheduleClear occRef
@@ -340,29 +370,45 @@ cacheEvent e =
340 { _cacheSubscribed_subscribers = subscribers
370 { _cacheSubscribed_subscribers = subscribers
341 , _cacheSubscribed_parent = parentSub
371 , _cacheSubscribed_parent = parentSub
342 , _cacheSubscribed_occurrence = occRef
372 , _cacheSubscribed_occurrence = occRef
374+ , _cacheSubscribed_nodeId = nodeId
344 subscribedTicket <- liftIO $ mkFastWeakTicket subscribed
377 subscribedTicket <- liftIO $ mkFastWeakTicket subscribed
345 liftIO $ writeIORef mSubscribedRef =<< getFastWeakTicketWeak subscribedTicket
378 liftIO $ writeIORef mSubscribedRef =<< getFastWeakTicketWeak subscribedTicket
346 return subscribedTicket
379 return subscribedTicket
347− liftIO $ do
380+ liftIO $ cacheSubscription sub mSubscribedRef subscribedTicket
382+cacheSubscription :: Subscriber x a -> IORef (FastWeak (CacheSubscribed x a))
383+ -> FastWeakTicket (CacheSubscribed x a) -> IO (EventSubscription x, Maybe a)
384+cacheSubscription sub mSubscribedRef subscribedTicket = do
348− subscribed <- getFastWeakTicketValue subscribedTicket
385+ subscribed <- getFastWeakTicketValue subscribedTicket
349− ticket <- FastWeakBag.insert sub $ _cacheSubscribed_subscribers subscribed
386+ ticket <- FastWeakBag.insert sub $ _cacheSubscribed_subscribers subscribed
350− occ <- readIORef $ _cacheSubscribed_occurrence subscribed
387+ occ <- readIORef $ _cacheSubscribed_occurrence subscribed
389+ let parentSub = _cacheSubscribed_parent subscribed
351− let es = EventSubscription
390+ es = EventSubscription
352− { _eventSubscription_unsubscribe = do
391+ { _eventSubscription_unsubscribe = do
353− FastWeakBag.remove ticket
392+ FastWeakBag.remove ticket
354− isEmpty <- FastWeakBag.isEmpty $ _cacheSubscribed_subscribers subscribed
394+ isEmpty <- FastWeakBag.isEmpty $ _cacheSubscribed_subscribers subscribed
355− when isEmpty $ do
395+ when isEmpty $ do
356− writeIORef mSubscribedRef emptyFastWeak
396+ writeIORef mSubscribedRef emptyFastWeak
357− unsubscribe $ _cacheSubscribed_parent subscribed
397+ unsubscribe parentSub
358− touch ticket
398+ touch ticket
359− touch subscribedTicket
399+ touch subscribedTicket
360− , _eventSubscription_subscribed = EventSubscribed
400+ , _eventSubscription_subscribed = EventSubscribed
361− { eventSubscribedHeightRef = eventSubscribedHeightRef $ _eventSubscription_subscribed $ _cacheSubscribed_parent subscribed
401+ { eventSubscribedHeightRef = eventSubscribedHeightRef $ _eventSubscription_subscribed parentSub
362− , eventSubscribedRetained = toAny subscribedTicket
402+ , eventSubscribedRetained = toAny subscribedTicket
404+ , eventSubscribedGetParents = return [_eventSubscription_subscribed parentSub]
405+ , eventSubscribedHasOwnHeightRef = False
406+ , eventSubscribedWhoCreated = whoCreatedIORef mSubscribedRef
365− return (es, occ)
410+ return (es, occ)
367subscribe :: Event x a -> Subscriber x a -> EventM x (EventSubscription x)
413subscribe :: Event x a -> Subscriber x a -> EventM x (EventSubscription x)
368subscribe e s = fst <$> subscribeAndRead e s
414subscribe e s = fst <$> subscribeAndRead e s
@@ -374,13 +420,16 @@ wrap tag getSpecificSubscribed sub = do
374 let es = tag subd
420 let es = tag subd
375 return (EventSubscription (WeakBag.remove sln >> touch sln) es, occ)
421 return (EventSubscription (WeakBag.remove sln >> touch sln) es, occ)
377−eventRoot :: GCompare k => k a -> Root x k -> Event x a
423+eventRoot :: (GCompare k, HasSpiderTimeline x) => k a -> Root x k -> Event x a
378eventRoot !k !r = Event $ wrap eventSubscribedRoot $ liftIO . getRootSubscribed k r
424eventRoot !k !r = Event $ wrap eventSubscribedRoot $ liftIO . getRootSubscribed k r
426+subscribeAndReadNever :: EventM x (EventSubscription x, Maybe a)
427+subscribeAndReadNever = return (EventSubscription (return ()) eventSubscribedNever, Nothing)
380eventNever :: Event x a
429eventNever :: Event x a
381−eventNever = Event $ \_ -> return (EventSubscription (return ()) eventSubscribedNever, Nothing)
430+eventNever = Event $ const subscribeAndReadNever
383−eventFan :: (GCompare k, HasSpiderTimeline x) => k a -> Fan x k -> Event x a
432+eventFan :: (GCompare k, HasSpiderTimeline x) => k a -> Fan x k v -> Event x (v a)
384eventFan !k !f = Event $ wrap eventSubscribedFan $ getFanSubscribed k f
433eventFan !k !f = Event $ wrap eventSubscribedFan $ getFanSubscribed k f
386eventSwitch :: HasSpiderTimeline x => Switch x a -> Event x a
435eventSwitch :: HasSpiderTimeline x => Switch x a -> Event x a
@@ -389,7 +438,7 @@ eventSwitch !s = Event $ wrap eventSubscribedSwitch $ getSwitchSubscribed s
389eventCoincidence :: HasSpiderTimeline x => Coincidence x a -> Event x a
438eventCoincidence :: HasSpiderTimeline x => Coincidence x a -> Event x a
390eventCoincidence !c = Event $ wrap eventSubscribedCoincidence $ getCoincidenceSubscribed c
439eventCoincidence !c = Event $ wrap eventSubscribedCoincidence $ getCoincidenceSubscribed c
392−eventHold :: HasSpiderTimeline x => Hold x p -> Event x p
441+eventHold :: Hold x p -> Event x p
393eventHold !h = Event $ subscribeHoldEvent h
442eventHold !h = Event $ subscribeHoldEvent h
395eventDyn :: (HasSpiderTimeline x, Patch p) => Dyn x p -> Event x p
444eventDyn :: (HasSpiderTimeline x, Patch p) => Dyn x p -> Event x p
@@ -415,16 +464,6 @@ data Subscriber x a = Subscriber
415 , subscriberRecalculateHeight :: !(Height -> IO ())
464 , subscriberRecalculateHeight :: !(Height -> IO ())
418−--TODO: Move this comment to WeakBag
419−-- These function are constructor functions that are marked NOINLINE so they are
420−-- opaque to GHC. If we do not do this, then GHC will sometimes fuse the constructor away
421−-- so any weak references that are attached to the constructors will have their
422−-- finalizer run. Using the opaque constructor, does not see the
423−-- constructor application, so it behaves like an IORef and cannot be fused away.
425−-- The result is also evaluated to WHNF, since forcing a thunk invalidates
426−-- the weak pointer to it in some cases.
428newSubscriberHold :: (HasSpiderTimeline x, Patch p) => Hold x p -> IO (Subscriber x p)
467newSubscriberHold :: (HasSpiderTimeline x, Patch p) => Hold x p -> IO (Subscriber x p)
429newSubscriberHold h = return $ Subscriber
468newSubscriberHold h = return $ Subscriber
430 { subscriberPropagate = {-# SCC "traverseHold" #-} propagateSubscriberHold h
469 { subscriberPropagate = {-# SCC "traverseHold" #-} propagateSubscriberHold h
@@ -432,85 +471,68 @@ newSubscriberHold h = return $ Subscriber
432 , subscriberRecalculateHeight = \_ -> return ()
471 , subscriberRecalculateHeight = \_ -> return ()
435−newSubscriberFan :: forall x k. (HasSpiderTimeline x, GCompare k) => FanSubscribed x k -> IO (Subscriber x (DMap k Identity))
474+newSubscriberFan :: forall x k v. (HasSpiderTimeline x, GCompare k) => FanSubscribed x k v -> IO (Subscriber x (DMap k v))
436−newSubscriberFan subscribed = return $ Subscriber
475+newSubscriberFan subscribed = debugSubscriber ("SubscriberFan " <> showNodeId subscribed) $ Subscriber
437 { subscriberPropagate = \a -> {-# SCC "traverseFan" #-} do
476 { subscriberPropagate = \a -> {-# SCC "traverseFan" #-} do
438 subs <- liftIO $ readIORef $ fanSubscribedSubscribers subscribed
477 subs <- liftIO $ readIORef $ fanSubscribedSubscribers subscribed
439− tracePropagate (Proxy :: Proxy x) $ "SubscriberFan" <> showNodeId subscribed <> ": " ++ show (DMap.size subs) ++ " keys subscribed, " ++ show (DMap.size a) ++ " keys firing"
478+ tracePropagate (Proxy :: Proxy x) $ show (DMap.size subs) <> " keys subscribed, " <> show (DMap.size a) <> " keys firing"
440 liftIO $ writeIORef (fanSubscribedOccurrence subscribed) $ Just a
479 liftIO $ writeIORef (fanSubscribedOccurrence subscribed) $ Just a
441 scheduleClear $ fanSubscribedOccurrence subscribed
480 scheduleClear $ fanSubscribedOccurrence subscribed
442− let f _ (Pair (Identity v) subsubs) = do
481+ let f _ (Pair v subsubs) = do
443 propagate v $ _fanSubscribedChildren_list subsubs
482 propagate v $ _fanSubscribedChildren_list subsubs
444 return $ Constant ()
483 return $ Constant ()
445 _ <- DMap.traverseWithKey f $ DMap.intersectionWithKey (\_ -> Pair) a subs --TODO: Would be nice to have DMap.traverse_
484 _ <- DMap.traverseWithKey f $ DMap.intersectionWithKey (\_ -> Pair) a subs --TODO: Would be nice to have DMap.traverse_
446 return ()
485 return ()
447 , subscriberInvalidateHeight = \old -> do
486 , subscriberInvalidateHeight = \old -> do
448− when debugInvalidateHeight $ putStrLn $ "invalidateSubscriberHeight: SubscriberFan" <> showNodeId subscribed
449 subscribers <- readIORef $ fanSubscribedSubscribers subscribed
487 subscribers <- readIORef $ fanSubscribedSubscribers subscribed
450− forM_ (DMap.toList subscribers) $ \(_ :=> v) -> WeakBag.traverse (_fanSubscribedChildren_list v) $ invalidateSubscriberHeight old
488+ forM_ (DMap.toList subscribers) $ \(_ :=> v) -> WeakBag.traverse_ (_fanSubscribedChildren_list v) $ invalidateSubscriberHeight old
451− when debugInvalidateHeight $ putStrLn $ "invalidateSubscriberHeight: SubscriberFan" <> showNodeId subscribed <> " done"
452 , subscriberRecalculateHeight = \new -> do
489 , subscriberRecalculateHeight = \new -> do
453− when debugInvalidateHeight $ putStrLn $ "recalculateSubscriberHeight: SubscriberFan" <> showNodeId subscribed
454 subscribers <- readIORef $ fanSubscribedSubscribers subscribed
490 subscribers <- readIORef $ fanSubscribedSubscribers subscribed
455− forM_ (DMap.toList subscribers) $ \(_ :=> v) -> WeakBag.traverse (_fanSubscribedChildren_list v) $ recalculateSubscriberHeight new
491+ forM_ (DMap.toList subscribers) $ \(_ :=> v) -> WeakBag.traverse_ (_fanSubscribedChildren_list v) $ recalculateSubscriberHeight new
456− when debugInvalidateHeight $ putStrLn $ "recalculateSubscriberHeight: SubscriberFan" <> showNodeId subscribed <> " done"
459newSubscriberSwitch :: forall x a. HasSpiderTimeline x => SwitchSubscribed x a -> IO (Subscriber x a)
494newSubscriberSwitch :: forall x a. HasSpiderTimeline x => SwitchSubscribed x a -> IO (Subscriber x a)
460−newSubscriberSwitch subscribed = return $ Subscriber
495+newSubscriberSwitch subscribed = debugSubscriber ("SubscriberCoincidenceOuter" <> showNodeId subscribed) $ Subscriber
461 { subscriberPropagate = \a -> {-# SCC "traverseSwitch" #-} do
496 { subscriberPropagate = \a -> {-# SCC "traverseSwitch" #-} do
462− tracePropagate (Proxy :: Proxy x) $ "SubscriberSwitch" <> showNodeId subscribed
463 liftIO $ writeIORef (switchSubscribedOccurrence subscribed) $ Just a
497 liftIO $ writeIORef (switchSubscribedOccurrence subscribed) $ Just a
464 scheduleClear $ switchSubscribedOccurrence subscribed
498 scheduleClear $ switchSubscribedOccurrence subscribed
465 propagate a $ switchSubscribedSubscribers subscribed
499 propagate a $ switchSubscribedSubscribers subscribed
466 , subscriberInvalidateHeight = \_ -> do
500 , subscriberInvalidateHeight = \_ -> do
467− when debugInvalidateHeight $ putStrLn $ "invalidateSubscriberHeight: SubscriberSwitch" <> showNodeId subscribed
468 oldHeight <- readIORef $ switchSubscribedHeight subscribed
501 oldHeight <- readIORef $ switchSubscribedHeight subscribed
469 when (oldHeight /= invalidHeight) $ do
502 when (oldHeight /= invalidHeight) $ do
470 writeIORef (switchSubscribedHeight subscribed) $! invalidHeight
503 writeIORef (switchSubscribedHeight subscribed) $! invalidHeight
471− WeakBag.traverse (switchSubscribedSubscribers subscribed) $ invalidateSubscriberHeight oldHeight
504+ WeakBag.traverse_ (switchSubscribedSubscribers subscribed) $ invalidateSubscriberHeight oldHeight
472− when debugInvalidateHeight $ putStrLn $ "invalidateSubscriberHeight: SubscriberSwitch" <> showNodeId subscribed <> " done"
473− , subscriberRecalculateHeight = \new -> do
505+ , subscriberRecalculateHeight = (`updateSwitchHeight` subscribed)
474− when debugInvalidateHeight $ putStrLn $ "recalculateSubscriberHeight: SubscriberSwitch" <> showNodeId subscribed
475− updateSwitchHeight new subscribed
476− when debugInvalidateHeight $ putStrLn $ "recalculateSubscriberHeight: SubscriberSwitch" <> showNodeId subscribed <> " done"
479newSubscriberCoincidenceOuter :: forall x b. HasSpiderTimeline x => CoincidenceSubscribed x b -> IO (Subscriber x (Event x b))
508newSubscriberCoincidenceOuter :: forall x b. HasSpiderTimeline x => CoincidenceSubscribed x b -> IO (Subscriber x (Event x b))
480−newSubscriberCoincidenceOuter subscribed = return $ Subscriber
509+newSubscriberCoincidenceOuter subscribed = debugSubscriber ("SubscriberCoincidenceOuter" <> showNodeId subscribed) $ Subscriber
481 { subscriberPropagate = \a -> {-# SCC "traverseCoincidenceOuter" #-} do
510 { subscriberPropagate = \a -> {-# SCC "traverseCoincidenceOuter" #-} do
482− tracePropagate (Proxy :: Proxy x) $ "SubscriberCoincidenceOuter" <> showNodeId subscribed
483 outerHeight <- liftIO $ readIORef $ coincidenceSubscribedHeight subscribed
511 outerHeight <- liftIO $ readIORef $ coincidenceSubscribedHeight subscribed
484 tracePropagate (Proxy :: Proxy x) $ " outerHeight = " <> show outerHeight
512 tracePropagate (Proxy :: Proxy x) $ " outerHeight = " <> show outerHeight
485 (occ, innerHeight, innerSubd) <- subscribeCoincidenceInner a outerHeight subscribed
513 (occ, innerHeight, innerSubd) <- subscribeCoincidenceInner a outerHeight subscribed
486 tracePropagate (Proxy :: Proxy x) $ " isJust occ = " <> show (isJust occ)
514 tracePropagate (Proxy :: Proxy x) $ " isJust occ = " <> show (isJust occ)
487 tracePropagate (Proxy :: Proxy x) $ " innerHeight = " <> show innerHeight
515 tracePropagate (Proxy :: Proxy x) $ " innerHeight = " <> show innerHeight
488 liftIO $ writeIORef (coincidenceSubscribedInnerParent subscribed) $ Just innerSubd
517 liftIO $ writeIORef (coincidenceSubscribedInnerParent subscribed) $ Just innerSubd
489 scheduleClear $ coincidenceSubscribedInnerParent subscribed
518 scheduleClear $ coincidenceSubscribedInnerParent subscribed
490 case occ of
519 case occ of
491− Nothing -> do
520+ Nothing ->
492 when (innerHeight > outerHeight) $ liftIO $ do -- If the event fires, it will fire at a later height
521 when (innerHeight > outerHeight) $ liftIO $ do -- If the event fires, it will fire at a later height
493 writeIORef (coincidenceSubscribedHeight subscribed) $! innerHeight
522 writeIORef (coincidenceSubscribedHeight subscribed) $! innerHeight
494− WeakBag.traverse (coincidenceSubscribedSubscribers subscribed) $ invalidateSubscriberHeight outerHeight
523+ WeakBag.traverse_ (coincidenceSubscribedSubscribers subscribed) $ invalidateSubscriberHeight outerHeight
495− WeakBag.traverse (coincidenceSubscribedSubscribers subscribed) $ recalculateSubscriberHeight innerHeight
524+ WeakBag.traverse_ (coincidenceSubscribedSubscribers subscribed) $ recalculateSubscriberHeight innerHeight
496 Just o -> do -- Since it's already firing, no need to adjust height
525 Just o -> do -- Since it's already firing, no need to adjust height
497 liftIO $ writeIORef (coincidenceSubscribedOccurrence subscribed) occ
526 liftIO $ writeIORef (coincidenceSubscribedOccurrence subscribed) occ
498 scheduleClear $ coincidenceSubscribedOccurrence subscribed
527 scheduleClear $ coincidenceSubscribedOccurrence subscribed
499 propagate o $ coincidenceSubscribedSubscribers subscribed
528 propagate o $ coincidenceSubscribedSubscribers subscribed
500− , subscriberInvalidateHeight = \_ -> do
501− when debugInvalidateHeight $ putStrLn $ "invalidateSubscriberHeight: SubscriberCoincidenceOuter" <> showNodeId subscribed
502− invalidateCoincidenceHeight subscribed
529+ , subscriberInvalidateHeight = \_ -> invalidateCoincidenceHeight subscribed
503− when debugInvalidateHeight $ putStrLn $ "invalidateSubscriberHeight: SubscriberCoincidenceOuter" <> showNodeId subscribed <> " done"
504− , subscriberRecalculateHeight = \_ -> do
505− when debugInvalidateHeight $ putStrLn $ "recalculateSubscriberHeight: SubscriberCoincidenceOuter" <> showNodeId subscribed
506− recalculateCoincidenceHeight subscribed
530+ , subscriberRecalculateHeight = \_ -> recalculateCoincidenceHeight subscribed
507− when debugInvalidateHeight $ putStrLn $ "recalculateSubscriberHeight: SubscriberCoincidenceOuter" <> showNodeId subscribed <> " done"
510newSubscriberCoincidenceInner :: forall x a. HasSpiderTimeline x => CoincidenceSubscribed x a -> IO (Subscriber x a)
533newSubscriberCoincidenceInner :: forall x a. HasSpiderTimeline x => CoincidenceSubscribed x a -> IO (Subscriber x a)
511−newSubscriberCoincidenceInner subscribed = return $ Subscriber
534+newSubscriberCoincidenceInner subscribed = debugSubscriber ("SubscriberCoincidenceInner" <> showNodeId subscribed) $ Subscriber
512 { subscriberPropagate = \a -> {-# SCC "traverseCoincidenceInner" #-} do
535 { subscriberPropagate = \a -> {-# SCC "traverseCoincidenceInner" #-} do
513− tracePropagate (Proxy :: Proxy x) $ "SubscriberCoincidenceInner" <> showNodeId subscribed
514 occ <- liftIO $ readIORef $ coincidenceSubscribedOccurrence subscribed
536 occ <- liftIO $ readIORef $ coincidenceSubscribedOccurrence subscribed
515 case occ of
537 case occ of
516 Just _ -> return () -- SubscriberCoincidenceOuter must have already propagated this event
538 Just _ -> return () -- SubscriberCoincidenceOuter must have already propagated this event
@@ -518,14 +540,8 @@ newSubscriberCoincidenceInner subscribed = return $ Subscriber
518 liftIO $ writeIORef (coincidenceSubscribedOccurrence subscribed) $ Just a
540 liftIO $ writeIORef (coincidenceSubscribedOccurrence subscribed) $ Just a
519 scheduleClear $ coincidenceSubscribedOccurrence subscribed
541 scheduleClear $ coincidenceSubscribedOccurrence subscribed
520 propagate a $ coincidenceSubscribedSubscribers subscribed
542 propagate a $ coincidenceSubscribedSubscribers subscribed
521− , subscriberInvalidateHeight = \_ -> do
522− when debugInvalidateHeight $ putStrLn $ "invalidateSubscriberHeight: SubscriberCoincidenceInner" <> showNodeId subscribed
523− invalidateCoincidenceHeight subscribed
543+ , subscriberInvalidateHeight = \_ -> invalidateCoincidenceHeight subscribed
524− when debugInvalidateHeight $ putStrLn $ "invalidateSubscriberHeight: SubscriberCoincidenceInner" <> showNodeId subscribed <> " done"
525− , subscriberRecalculateHeight = \_ -> do
526− when debugInvalidateHeight $ putStrLn $ "recalculateSubscriberHeight: SubscriberCoincidenceInner" <> showNodeId subscribed
527− recalculateCoincidenceHeight subscribed
544+ , subscriberRecalculateHeight = \_ -> recalculateCoincidenceHeight subscribed
528− when debugInvalidateHeight $ putStrLn $ "recalculateSubscriberHeight: SubscriberCoincidenceInner" <> showNodeId subscribed <> " done"
531invalidateSubscriberHeight :: Height -> Subscriber x a -> IO ()
547invalidateSubscriberHeight :: Height -> Subscriber x a -> IO ()
@@ -535,18 +551,18 @@ recalculateSubscriberHeight :: Height -> Subscriber x a -> IO ()
535recalculateSubscriberHeight = flip subscriberRecalculateHeight
551recalculateSubscriberHeight = flip subscriberRecalculateHeight
537-- | Propagate everything at the current height
553-- | Propagate everything at the current height
538−propagate :: a -> WeakBag (Subscriber x a) -> EventM x ()
554+propagate :: forall x a. HasSpiderTimeline x => a -> WeakBag (Subscriber x a) -> EventM x ()
539−propagate a subscribers = withIncreasedDepth $ do
555+propagate a subscribers = withIncreasedDepth (Proxy::Proxy x) $
540 -- Note: in the following traversal, we do not visit nodes that are added to the list during our traversal; they are new events, which will necessarily have full information already, so there is no need to traverse them
556 -- Note: in the following traversal, we do not visit nodes that are added to the list during our traversal; they are new events, which will necessarily have full information already, so there is no need to traverse them
541 --TODO: Should we check if nodes already have their values before propagating? Maybe we're re-doing work
557 --TODO: Should we check if nodes already have their values before propagating? Maybe we're re-doing work
542− WeakBag.traverse subscribers $ \s -> subscriberPropagate s a
558+ WeakBag.traverse_ subscribers $ \s -> subscriberPropagate s a
544-- | Propagate everything at the current height
560-- | Propagate everything at the current height
545−propagateFast :: a -> FastWeakBag (Subscriber x a) -> EventM x ()
561+propagateFast :: forall x a. HasSpiderTimeline x => a -> FastWeakBag (Subscriber x a) -> EventM x ()
546−propagateFast a subscribers = withIncreasedDepth $ do
562+propagateFast a subscribers = withIncreasedDepth (Proxy::Proxy x) $
547 -- Note: in the following traversal, we do not visit nodes that are added to the list during our traversal; they are new events, which will necessarily have full information already, so there is no need to traverse them
563 -- Note: in the following traversal, we do not visit nodes that are added to the list during our traversal; they are new events, which will necessarily have full information already, so there is no need to traverse them
548 --TODO: Should we check if nodes already have their values before propagating? Maybe we're re-doing work
564 --TODO: Should we check if nodes already have their values before propagating? Maybe we're re-doing work
549− FastWeakBag.traverse subscribers $ \s -> subscriberPropagate s a
565+ FastWeakBag.traverse_ subscribers $ \s -> subscriberPropagate s a
551--------------------------------------------------------------------------------
567--------------------------------------------------------------------------------
552-- EventSubscribed
568-- EventSubscribed
@@ -555,11 +571,16 @@ propagateFast a subscribers = withIncreasedDepth $ do
555toAny :: a -> Any
571toAny :: a -> Any
556toAny = unsafeCoerce
572toAny = unsafeCoerce
574+-- Why do we use Any here, instead of just giving eventSubscribedRetained an
575+-- existential type? Sadly, GHC does not currently know how to unbox types
576+-- with existentially quantified fields. So instead we just coerce values
577+-- to type Any on the way in. Since we never coerce them back, this is
558data EventSubscribed x = EventSubscribed
579data EventSubscribed x = EventSubscribed
559 { eventSubscribedHeightRef :: {-# UNPACK #-} !(IORef Height)
580 { eventSubscribedHeightRef :: {-# UNPACK #-} !(IORef Height)
560 , eventSubscribedRetained :: {-# NOUNPACK #-} !Any
581 , eventSubscribedRetained :: {-# NOUNPACK #-} !Any
561#ifdef DEBUG_CYCLES
582#ifdef DEBUG_CYCLES
562− , eventSubscribedGetParents :: !(IO [Some (EventSubscribed x)]) -- For debugging loops
583+ , eventSubscribedGetParents :: !(IO [EventSubscribed x]) -- For debugging loops
563 , eventSubscribedHasOwnHeightRef :: !Bool
584 , eventSubscribedHasOwnHeightRef :: !Bool
564 , eventSubscribedWhoCreated :: !(IO [String])
585 , eventSubscribedWhoCreated :: !(IO [String])
@@ -586,13 +607,23 @@ eventSubscribedNever = EventSubscribed
586 , eventSubscribedWhoCreated = return ["never"]
607 , eventSubscribedWhoCreated = return ["never"]
610+eventSubscribedNow :: EventSubscribed x
611+eventSubscribedNow = EventSubscribed
612+ { eventSubscribedHeightRef = zeroRef
613+ , eventSubscribedRetained = toAny ()
615+ , eventSubscribedGetParents = return []
616+ , eventSubscribedHasOwnHeightRef = False
617+ , eventSubscribedWhoCreated = return ["now"]
590−eventSubscribedFan :: FanSubscribed x k -> EventSubscribed x
621+eventSubscribedFan :: FanSubscribed x k v -> EventSubscribed x
591eventSubscribedFan !subscribed = EventSubscribed
622eventSubscribedFan !subscribed = EventSubscribed
592 { eventSubscribedHeightRef = eventSubscribedHeightRef $ _eventSubscription_subscribed $ fanSubscribedParent subscribed
623 { eventSubscribedHeightRef = eventSubscribedHeightRef $ _eventSubscription_subscribed $ fanSubscribedParent subscribed
593 , eventSubscribedRetained = toAny subscribed
624 , eventSubscribedRetained = toAny subscribed
594#ifdef DEBUG_CYCLES
625#ifdef DEBUG_CYCLES
595− , eventSubscribedGetParents = return [Some.This $ _eventSubscription_subscribed $ fanSubscribedParent subscribed]
626+ , eventSubscribedGetParents = return [_eventSubscription_subscribed $ fanSubscribedParent subscribed]
596 , eventSubscribedHasOwnHeightRef = False
627 , eventSubscribedHasOwnHeightRef = False
597 , eventSubscribedWhoCreated = whoCreatedIORef $ fanSubscribedCachedSubscribed subscribed
628 , eventSubscribedWhoCreated = whoCreatedIORef $ fanSubscribedCachedSubscribed subscribed
@@ -605,7 +636,7 @@ eventSubscribedSwitch !subscribed = EventSubscribed
605#ifdef DEBUG_CYCLES
636#ifdef DEBUG_CYCLES
606 , eventSubscribedGetParents = do
637 , eventSubscribedGetParents = do
607 s <- readIORef $ switchSubscribedCurrentParent subscribed
638 s <- readIORef $ switchSubscribedCurrentParent subscribed
608− return [Some.This $ _eventSubscription_subscribed s]
639+ return [_eventSubscription_subscribed s]
609 , eventSubscribedHasOwnHeightRef = True
640 , eventSubscribedHasOwnHeightRef = True
610 , eventSubscribedWhoCreated = whoCreatedIORef $ switchSubscribedCachedSubscribed subscribed
641 , eventSubscribedWhoCreated = whoCreatedIORef $ switchSubscribedCachedSubscribed subscribed
@@ -618,8 +649,8 @@ eventSubscribedCoincidence !subscribed = EventSubscribed
618#ifdef DEBUG_CYCLES
649#ifdef DEBUG_CYCLES
619 , eventSubscribedGetParents = do
650 , eventSubscribedGetParents = do
620 innerSubscription <- readIORef $ coincidenceSubscribedInnerParent subscribed
651 innerSubscription <- readIORef $ coincidenceSubscribedInnerParent subscribed
621− let outerParent = Some.This $ _eventSubscription_subscribed $ coincidenceSubscribedOuterParent subscribed
652+ let outerParent = _eventSubscription_subscribed $ coincidenceSubscribedOuterParent subscribed
622− innerParents = maybeToList $ fmap Some.This innerSubscription
653+ innerParents = maybeToList $ innerSubscription
623 return $ outerParent : innerParents
654 return $ outerParent : innerParents
624 , eventSubscribedHasOwnHeightRef = True
655 , eventSubscribedHasOwnHeightRef = True
625 , eventSubscribedWhoCreated = whoCreatedIORef $ coincidenceSubscribedCachedSubscribed subscribed
656 , eventSubscribedWhoCreated = whoCreatedIORef $ coincidenceSubscribedCachedSubscribed subscribed
@@ -633,20 +664,20 @@ getEventSubscribedHeight es = readIORef $ eventSubscribedHeightRef es
633whoCreatedEventSubscribed :: EventSubscribed x -> IO [String]
664whoCreatedEventSubscribed :: EventSubscribed x -> IO [String]
634whoCreatedEventSubscribed = eventSubscribedWhoCreated
665whoCreatedEventSubscribed = eventSubscribedWhoCreated
636−walkInvalidHeightParents :: EventSubscribed x -> IO [Some (EventSubscribed x)]
667+walkInvalidHeightParents :: EventSubscribed x -> IO [EventSubscribed x]
637walkInvalidHeightParents s0 = do
668walkInvalidHeightParents s0 = do
638− subscribers <- flip execStateT mempty $ ($ Some.This s0) $ fix $ \loop (Some.This s) -> do
669+ subscribers <- flip execStateT mempty $ ($ s0) $ fix $ \loop s -> do
639 h <- liftIO $ readIORef $ eventSubscribedHeightRef s
670 h <- liftIO $ readIORef $ eventSubscribedHeightRef s
640 when (h == invalidHeight) $ do
671 when (h == invalidHeight) $ do
641 when (eventSubscribedHasOwnHeightRef s) $ liftIO $ writeIORef (eventSubscribedHeightRef s) $! invalidHeightBeingTraversed
672 when (eventSubscribedHasOwnHeightRef s) $ liftIO $ writeIORef (eventSubscribedHeightRef s) $! invalidHeightBeingTraversed
642− modify (Some.This s :)
673+ modify (s :)
643 mapM_ loop =<< liftIO (eventSubscribedGetParents s)
674 mapM_ loop =<< liftIO (eventSubscribedGetParents s)
644− forM_ subscribers $ \(Some.This s) -> writeIORef (eventSubscribedHeightRef s) $! invalidHeight
675+ forM_ subscribers $ \s -> writeIORef (eventSubscribedHeightRef s) $! invalidHeight
645 return subscribers
676 return subscribers
648{-# INLINE subscribeHoldEvent #-}
679{-# INLINE subscribeHoldEvent #-}
649−subscribeHoldEvent :: HasSpiderTimeline x => Hold x p -> Subscriber x p -> EventM x (EventSubscription x, Maybe p)
680+subscribeHoldEvent :: Hold x p -> Subscriber x p -> EventM x (EventSubscription x, Maybe p)
650subscribeHoldEvent = subscribeAndRead . holdEvent
681subscribeHoldEvent = subscribeAndRead . holdEvent
652--------------------------------------------------------------------------------
683--------------------------------------------------------------------------------
@@ -669,7 +700,7 @@ behaviorPull !p = Behavior $ do
669 val <- liftIO $ readIORef $ pullValue p
700 val <- liftIO $ readIORef $ pullValue p
670 case val of
701 case val of
671 Just subscribed -> do
702 Just subscribed -> do
672− askParentsRef >>= mapM_ (\r -> liftIO $ modifyIORef' r (SomeBehaviorSubscribed (BehaviorSubscribedPull subscribed) :))
703+ askParentsRef >>= mapM_ (\r -> liftIO $ modifyIORef' r (SomeBehaviorSubscribed (Some (BehaviorSubscribedPull subscribed)) :))
673 askInvalidator >>= mapM_ (\wi -> liftIO $ modifyIORef' (pullSubscribedInvalidators subscribed) (wi:))
704 askInvalidator >>= mapM_ (\wi -> liftIO $ modifyIORef' (pullSubscribedInvalidators subscribed) (wi:))
674 liftIO $ touch $ pullSubscribedOwnInvalidator subscribed
705 liftIO $ touch $ pullSubscribedOwnInvalidator subscribed
675 return $ pullSubscribedValue subscribed
706 return $ pullSubscribedValue subscribed
@@ -678,7 +709,7 @@ behaviorPull !p = Behavior $ do
678 wi <- liftIO $ mkWeakPtrWithDebug i "InvalidatorPull"
709 wi <- liftIO $ mkWeakPtrWithDebug i "InvalidatorPull"
679 parentsRef <- liftIO $ newIORef []
710 parentsRef <- liftIO $ newIORef []
680 holdInits <- askBehaviorHoldInits
711 holdInits <- askBehaviorHoldInits
681− a <- liftIO $ runReaderT (unBehaviorM $ pullCompute p) (Just (wi, parentsRef), holdInits)
712+ a <- liftIO $ runReaderIO (unBehaviorM $ pullCompute p) (Just (wi, parentsRef), holdInits)
682 invsRef <- liftIO . newIORef . maybeToList =<< askInvalidator
713 invsRef <- liftIO . newIORef . maybeToList =<< askInvalidator
683 parents <- liftIO $ readIORef parentsRef
714 parents <- liftIO $ readIORef parentsRef
684 let subscribed = PullSubscribed
715 let subscribed = PullSubscribed
@@ -688,7 +719,7 @@ behaviorPull !p = Behavior $ do
688 , pullSubscribedParents = parents
719 , pullSubscribedParents = parents
690 liftIO $ writeIORef (pullValue p) $ Just subscribed
721 liftIO $ writeIORef (pullValue p) $ Just subscribed
691− askParentsRef >>= mapM_ (\r -> liftIO $ modifyIORef' r (SomeBehaviorSubscribed (BehaviorSubscribedPull subscribed) :))
722+ askParentsRef >>= mapM_ (\r -> liftIO $ modifyIORef' r (SomeBehaviorSubscribed (Some (BehaviorSubscribedPull subscribed)) :))
694behaviorDyn :: Patch p => Dyn x p -> Behavior x (PatchTarget p)
725behaviorDyn :: Patch p => Dyn x p -> Behavior x (PatchTarget p)
@@ -699,7 +730,7 @@ readHoldTracked :: Hold x p -> BehaviorM x (PatchTarget p)
699readHoldTracked h = do
730readHoldTracked h = do
700 result <- liftIO $ readIORef $ holdValue h
731 result <- liftIO $ readIORef $ holdValue h
701 askInvalidator >>= mapM_ (\wi -> liftIO $ modifyIORef' (holdInvalidators h) (wi:))
732 askInvalidator >>= mapM_ (\wi -> liftIO $ modifyIORef' (holdInvalidators h) (wi:))
702− askParentsRef >>= mapM_ (\r -> liftIO $ modifyIORef' r (SomeBehaviorSubscribed (BehaviorSubscribedHold h) :))
733+ askParentsRef >>= mapM_ (\r -> liftIO $ modifyIORef' r (SomeBehaviorSubscribed (Some (BehaviorSubscribedHold h)) :))
703 liftIO $ touch h -- Otherwise, if this gets inlined enough, the hold's parent reference may get collected
734 liftIO $ touch h -- Otherwise, if this gets inlined enough, the hold's parent reference may get collected
704 return result
735 return result
@@ -713,42 +744,46 @@ readBehaviorUntracked b = do
713-- Dynamic
744-- Dynamic
714--------------------------------------------------------------------------------
745--------------------------------------------------------------------------------
747+type DynamicS x p = Dynamic x (PatchTarget p) p
716−data Dynamic x p = Dynamic
749+data Dynamic x target p = Dynamic
717− { dynamicCurrent :: !(Behavior x (PatchTarget p))
750+ { dynamicCurrent :: !(Behavior x target)
718− , dynamicUpdated :: !(Event x p)
751+ , dynamicUpdated :: Event x p -- This must be lazy; see the comment on holdEvent --TODO: Would this let us eliminate `Dyn`?
721−dynamicHold :: HasSpiderTimeline x => Hold x p -> Dynamic x p
754+deriving instance (HasSpiderTimeline x) => Functor (Dynamic x target)
759+dynamicHold :: Hold x p -> DynamicS x p
722dynamicHold !h = Dynamic
760dynamicHold !h = Dynamic
723 { dynamicCurrent = behaviorHold h
761 { dynamicCurrent = behaviorHold h
724 , dynamicUpdated = eventHold h
762 , dynamicUpdated = eventHold h
727−dynamicHoldIdentity :: HasSpiderTimeline x => Hold x (Identity a) -> Dynamic x (Identity a)
765+dynamicHoldIdentity :: Hold x (Identity a) -> DynamicS x (Identity a)
728dynamicHoldIdentity = dynamicHold
766dynamicHoldIdentity = dynamicHold
730−dynamicConst :: PatchTarget p -> Dynamic x p
768+dynamicConst :: PatchTarget p -> DynamicS x p
731dynamicConst !a = Dynamic
769dynamicConst !a = Dynamic
732 { dynamicCurrent = behaviorConst a
770 { dynamicCurrent = behaviorConst a
733 , dynamicUpdated = eventNever
771 , dynamicUpdated = eventNever
736−dynamicDyn :: (HasSpiderTimeline x, Patch p) => Dyn x p -> Dynamic x p
774+dynamicDyn :: (HasSpiderTimeline x, Patch p) => Dyn x p -> DynamicS x p
737dynamicDyn !d = Dynamic
775dynamicDyn !d = Dynamic
738 { dynamicCurrent = behaviorDyn d
776 { dynamicCurrent = behaviorDyn d
739 , dynamicUpdated = eventDyn d
777 , dynamicUpdated = eventDyn d
742−dynamicDynIdentity :: HasSpiderTimeline x => Dyn x (Identity a) -> Dynamic x (Identity a)
780+dynamicDynIdentity :: HasSpiderTimeline x => Dyn x (Identity a) -> DynamicS x (Identity a)
743dynamicDynIdentity = dynamicDyn
781dynamicDynIdentity = dynamicDyn
745--------------------------------------------------------------------------------
783--------------------------------------------------------------------------------
746-- Combinators
784-- Combinators
747--------------------------------------------------------------------------------
785--------------------------------------------------------------------------------
749−--TODO: Figure out why certain things are not 'representational', then make them
750−--representational so we can use coerce
752--type role Hold representational
787--type role Hold representational
753data Hold x p
788data Hold x p
754 = Hold { holdValue :: !(IORef (PatchTarget p))
789 = Hold { holdValue :: !(IORef (PatchTarget p))
@@ -760,9 +795,7 @@ data Hold x p
763−-- | A statically allocated 'SpiderTimeline'; this is the only instance of
798+-- | A statically allocated 'SpiderTimeline'
764−-- 'SpiderTimeline' that can used when using
765−-- -fspecialize-to-spidertimeline-global.
766data Global
799data Global
768{-# NOINLINE globalSpiderTimelineEnv #-}
801{-# NOINLINE globalSpiderTimelineEnv #-}
@@ -771,30 +804,27 @@ globalSpiderTimelineEnv = unsafePerformIO unsafeNewSpiderTimelineEnv
772-- | Stores all global data relevant to a particular Spider timeline; only one
805-- | Stores all global data relevant to a particular Spider timeline; only one
773-- value should exist for each type @x@
806-- value should exist for each type @x@
807+newtype SpiderTimelineEnv x = STE {unSTE :: SpiderTimelineEnv' x}
808+-- We implement SpiderTimelineEnv with a newtype wrapper so
809+-- we can get the coercions we want safely.
810+type role SpiderTimelineEnv nominal
774−data SpiderTimelineEnv x = SpiderTimelineEnv
812+data SpiderTimelineEnv' x = SpiderTimelineEnv
775 { _spiderTimeline_lock :: {-# UNPACK #-} !(MVar ())
813 { _spiderTimeline_lock :: {-# UNPACK #-} !(MVar ())
776 , _spiderTimeline_eventEnv :: {-# UNPACK #-} !(EventEnv x)
814 , _spiderTimeline_eventEnv :: {-# UNPACK #-} !(EventEnv x)
777#ifdef DEBUG
815#ifdef DEBUG
778 , _spiderTimeline_depth :: {-# UNPACK #-} !(IORef Int)
816 , _spiderTimeline_depth :: {-# UNPACK #-} !(IORef Int)
781−type role SpiderTimelineEnv nominal
819+type role SpiderTimelineEnv' phantom
783instance Eq (SpiderTimelineEnv x) where
821instance Eq (SpiderTimelineEnv x) where
784 _ == _ = True -- Since only one exists of each type
822 _ == _ = True -- Since only one exists of each type
786instance GEq SpiderTimelineEnv where
824instance GEq SpiderTimelineEnv where
787−#ifdef EXPERIMENTAL_DEPENDENT_SUM_INSTANCES
789− geqUnify (a :: SpiderTimelineEnv a) (b :: SpiderTimelineEnv b) different same = if _spiderTimeline_lock a == _spiderTimeline_lock b
790− then case unsafeCoerce Refl :: a :~: b of
791− Refl -> same -- This unsafeCoerce is safe because the same SpiderTimelineEnv can't have two different 'x' arguments
794− a `geq` b = if _spiderTimeline_lock a == _spiderTimeline_lock b
825+ a `geq` b = if _spiderTimeline_lock (unSTE a) == _spiderTimeline_lock (unSTE b)
795 then Just $ unsafeCoerce Refl -- This unsafeCoerce is safe because the same SpiderTimelineEnv can't have two different 'x' arguments
826 then Just $ unsafeCoerce Refl -- This unsafeCoerce is safe because the same SpiderTimelineEnv can't have two different 'x' arguments
796 else Nothing
827 else Nothing
799data EventEnv x
829data EventEnv x
800 = EventEnv { eventEnvAssignments :: !(IORef [SomeAssignment x]) -- Needed for Subscribe
830 = EventEnv { eventEnvAssignments :: !(IORef [SomeAssignment x]) -- Needed for Subscribe
@@ -802,9 +832,9 @@ data EventEnv x
802 , eventEnvDynInits :: !(IORef [SomeDynInit x])
832 , eventEnvDynInits :: !(IORef [SomeDynInit x])
803 , eventEnvMergeUpdates :: !(IORef [SomeMergeUpdate x])
833 , eventEnvMergeUpdates :: !(IORef [SomeMergeUpdate x])
804 , eventEnvMergeInits :: !(IORef [SomeMergeInit x]) -- Needed for Subscribe
834 , eventEnvMergeInits :: !(IORef [SomeMergeInit x]) -- Needed for Subscribe
805− , eventEnvClears :: !(IORef [SomeClear]) -- Needed for Subscribe
835+ , eventEnvClears :: !(IORef [Some Clear]) -- Needed for Subscribe
806− , eventEnvIntClears :: !(IORef [SomeIntClear])
836+ , eventEnvIntClears :: !(IORef [Some IntClear])
807− , eventEnvRootClears :: !(IORef [SomeRootClear])
837+ , eventEnvRootClears :: !(IORef [Some RootClear])
808 , eventEnvCurrentHeight :: !(IORef Height) -- Needed for Subscribe
838 , eventEnvCurrentHeight :: !(IORef Height) -- Needed for Subscribe
809 , eventEnvResetCoincidences :: !(IORef [SomeResetCoincidence x]) -- Needed for Subscribe
839 , eventEnvResetCoincidences :: !(IORef [SomeResetCoincidence x]) -- Needed for Subscribe
810 , eventEnvDelayedMerges :: !(IORef (IntMap [EventM x ()]))
840 , eventEnvDelayedMerges :: !(IORef (IntMap [EventM x ()]))
@@ -815,7 +845,7 @@ runEventM :: EventM x a -> IO a
815runEventM = unEventM
845runEventM = unEventM
817asksEventEnv :: forall x a. HasSpiderTimeline x => (EventEnv x -> a) -> EventM x a
847asksEventEnv :: forall x a. HasSpiderTimeline x => (EventEnv x -> a) -> EventM x a
818−asksEventEnv f = return $ f $ _spiderTimeline_eventEnv (spiderTimeline :: SpiderTimelineEnv x)
848+asksEventEnv f = return $ f $ _spiderTimeline_eventEnv (unSTE (spiderTimeline :: SpiderTimelineEnv x))
820class MonadIO m => Defer a m where
850class MonadIO m => Defer a m where
821 getDeferralQueue :: m (IORef [a])
851 getDeferralQueue :: m (IORef [a])
@@ -864,11 +894,7 @@ instance HasSpiderTimeline x => HasCurrentHeight x (EventM x) where
864 delayedRef <- asksEventEnv eventEnvDelayedMerges
894 delayedRef <- asksEventEnv eventEnvDelayedMerges
865 liftIO $ modifyIORef' delayedRef $ IntMap.insertWith (++) (unHeight height) [subscribed]
895 liftIO $ modifyIORef' delayedRef $ IntMap.insertWith (++) (unHeight height) [subscribed]
867−#ifdef SPECIALIZE_TO_SPIDERTIMELINE_GLOBAL
868−class x ~ Global => HasSpiderTimeline x where
870class HasSpiderTimeline x where
897class HasSpiderTimeline x where
872 -- | Retrieve the current SpiderTimelineEnv
898 -- | Retrieve the current SpiderTimelineEnv
873 spiderTimeline :: SpiderTimelineEnv x
899 spiderTimeline :: SpiderTimelineEnv x
@@ -880,29 +906,29 @@ putCurrentHeight h = do
880 heightRef <- asksEventEnv eventEnvCurrentHeight
906 heightRef <- asksEventEnv eventEnvCurrentHeight
881 liftIO $ writeIORef heightRef $! h
907 liftIO $ writeIORef heightRef $! h
883−instance HasSpiderTimeline x => Defer SomeClear (EventM x) where
909+instance HasSpiderTimeline x => Defer (Some Clear) (EventM x) where
884 {-# INLINE getDeferralQueue #-}
910 {-# INLINE getDeferralQueue #-}
885 getDeferralQueue = asksEventEnv eventEnvClears
911 getDeferralQueue = asksEventEnv eventEnvClears
887{-# INLINE scheduleClear #-}
913{-# INLINE scheduleClear #-}
888−scheduleClear :: Defer SomeClear m => IORef (Maybe a) -> m ()
914+scheduleClear :: Defer (Some Clear) m => IORef (Maybe a) -> m ()
889−scheduleClear r = defer $ SomeClear r
915+scheduleClear r = defer $ Some $ Clear r
891−instance HasSpiderTimeline x => Defer SomeIntClear (EventM x) where
917+instance HasSpiderTimeline x => Defer (Some IntClear) (EventM x) where
892 {-# INLINE getDeferralQueue #-}
918 {-# INLINE getDeferralQueue #-}
893 getDeferralQueue = asksEventEnv eventEnvIntClears
919 getDeferralQueue = asksEventEnv eventEnvIntClears
895{-# INLINE scheduleIntClear #-}
921{-# INLINE scheduleIntClear #-}
896−scheduleIntClear :: Defer SomeIntClear m => IORef (IntMap a) -> m ()
922+scheduleIntClear :: Defer (Some IntClear) m => IORef (IntMap a) -> m ()
897−scheduleIntClear r = defer $ SomeIntClear r
923+scheduleIntClear r = defer $ Some $ IntClear r
899−instance HasSpiderTimeline x => Defer SomeRootClear (EventM x) where
925+instance HasSpiderTimeline x => Defer (Some RootClear) (EventM x) where
900 {-# INLINE getDeferralQueue #-}
926 {-# INLINE getDeferralQueue #-}
901 getDeferralQueue = asksEventEnv eventEnvRootClears
927 getDeferralQueue = asksEventEnv eventEnvRootClears
903{-# INLINE scheduleRootClear #-}
929{-# INLINE scheduleRootClear #-}
904−scheduleRootClear :: Defer SomeRootClear m => IORef (DMap k Identity) -> m ()
930+scheduleRootClear :: Defer (Some RootClear) m => IORef (DMap k Identity) -> m ()
905−scheduleRootClear r = defer $ SomeRootClear r
931+scheduleRootClear r = defer $ Some $ RootClear r
907instance HasSpiderTimeline x => Defer (SomeResetCoincidence x) (EventM x) where
933instance HasSpiderTimeline x => Defer (SomeResetCoincidence x) (EventM x) where
908 {-# INLINE getDeferralQueue #-}
934 {-# INLINE getDeferralQueue #-}
@@ -957,9 +983,9 @@ getHoldEventSubscription h = do
958type BehaviorEnv x = (Maybe (Weak (Invalidator x), IORef [SomeBehaviorSubscribed x]), IORef [SomeHoldInit x])
984type BehaviorEnv x = (Maybe (Weak (Invalidator x), IORef [SomeBehaviorSubscribed x]), IORef [SomeHoldInit x])
960−--type role BehaviorM representational
961-- BehaviorM can sample behaviors
986-- BehaviorM can sample behaviors
962−newtype BehaviorM x a = BehaviorM { unBehaviorM :: ReaderT (BehaviorEnv x) IO a } deriving (Functor, Applicative, MonadIO, MonadFix)
987+newtype BehaviorM x a = BehaviorM { unBehaviorM :: ReaderIO (BehaviorEnv x) a }
988+ deriving (Functor, Applicative, MonadIO, MonadFix, MonadReader (BehaviorEnv x))
964instance Monad (BehaviorM x) where
990instance Monad (BehaviorM x) where
965 {-# INLINE (>>=) #-}
991 {-# INLINE (>>=) #-}
@@ -968,14 +994,16 @@ instance Monad (BehaviorM x) where
968 BehaviorM x >> BehaviorM y = BehaviorM $ x >> y
994 BehaviorM x >> BehaviorM y = BehaviorM $ x >> y
969 {-# INLINE return #-}
995 {-# INLINE return #-}
970 return x = BehaviorM $ return x
996 return x = BehaviorM $ return x
997+#if !MIN_VERSION_base(4,13,0)
971 {-# INLINE fail #-}
998 {-# INLINE fail #-}
972 fail s = BehaviorM $ fail s
999 fail s = BehaviorM $ fail s
974data BehaviorSubscribed x a
1002data BehaviorSubscribed x a
975 = forall p. BehaviorSubscribedHold (Hold x p)
1003 = forall p. BehaviorSubscribedHold (Hold x p)
976 | BehaviorSubscribedPull (PullSubscribed x a)
1004 | BehaviorSubscribedPull (PullSubscribed x a)
978−data SomeBehaviorSubscribed x = forall a. SomeBehaviorSubscribed (BehaviorSubscribed x a)
1006+newtype SomeBehaviorSubscribed x = SomeBehaviorSubscribed (Some (BehaviorSubscribed x))
980--type role PullSubscribed representational
1008--type role PullSubscribed representational
981data PullSubscribed x a
1009data PullSubscribed x a
@@ -1010,7 +1038,7 @@ data RootSubscribed x a = forall k. GCompare k => RootSubscribed
1013−data Root x (k :: * -> *)
1041+data Root x k
1014 = Root { rootOccurrence :: !(IORef (DMap k Identity)) -- The currently-firing occurrence of this event
1042 = Root { rootOccurrence :: !(IORef (DMap k Identity)) -- The currently-firing occurrence of this event
1015 , rootSubscribed :: !(IORef (DMap k (RootSubscribed x)))
1043 , rootSubscribed :: !(IORef (DMap k (RootSubscribed x)))
1016 , rootInit :: !(forall a. k a -> RootTrigger x a -> IO (IO ()))
1044 , rootInit :: !(forall a. k a -> RootTrigger x a -> IO (IO ()))
@@ -1029,7 +1057,7 @@ data SomeMergeUpdate x = SomeMergeUpdate
1029newtype SomeMergeInit x = SomeMergeInit { unSomeMergeInit :: EventM x () }
1057newtype SomeMergeInit x = SomeMergeInit { unSomeMergeInit :: EventM x () }
1031-- EventM can do everything BehaviorM can, plus create holds
1059-- EventM can do everything BehaviorM can, plus create holds
1032−newtype EventM x a = EventM { unEventM :: IO a } deriving (Functor, Applicative, Monad, MonadIO, MonadFix, MonadException, MonadAsyncException) -- The environment should be Nothing if we are not in a frame, and Just if we are - in which case it is a list of assignments to be done after the frame is over
1060+newtype EventM x a = EventM { unEventM :: IO a } deriving (Functor, Applicative, Monad, MonadIO, MonadFix, MonadException, MonadAsyncException)
1034newtype MergeSubscribedParent x a = MergeSubscribedParent { unMergeSubscribedParent :: EventSubscription x }
1062newtype MergeSubscribedParent x a = MergeSubscribedParent { unMergeSubscribedParent :: EventSubscription x }
@@ -1054,7 +1082,8 @@ heightBagFromList :: [Height] -> HeightBag
1054heightBagFromList heights = heightBagVerify $ foldl' (flip heightBagAdd) heightBagEmpty heights
1082heightBagFromList heights = heightBagVerify $ foldl' (flip heightBagAdd) heightBagEmpty heights
1056heightBagAdd :: Height -> HeightBag -> HeightBag
1084heightBagAdd :: Height -> HeightBag -> HeightBag
1057−heightBagAdd (Height h) (HeightBag s c) = heightBagVerify $ HeightBag (succ s) $ IntMap.insertWithKey (\_ _ old -> succ old) h 0 c
1085+heightBagAdd (Height h) (HeightBag s c) = heightBagVerify $ HeightBag (succ s) $
1086+ IntMap.insertWithKey (\_ _ old -> succ old) h 0 c
1059heightBagRemove :: Height -> HeightBag -> HeightBag
1088heightBagRemove :: Height -> HeightBag -> HeightBag
1060heightBagRemove (Height h) b@(HeightBag s c) = heightBagVerify $ case IntMap.lookup h c of
1089heightBagRemove (Height h) b@(HeightBag s c) = heightBagVerify $ case IntMap.lookup h c of
@@ -1063,6 +1092,13 @@ heightBagRemove (Height h) b@(HeightBag s c) = heightBagVerify $ case IntMap.loo
1063 0 -> IntMap.delete h c
1092 0 -> IntMap.delete h c
1064 _ -> IntMap.insert h (pred old) c
1093 _ -> IntMap.insert h (pred old) c
1095+heightBagRemoveMaybe :: Height -> HeightBag -> Maybe HeightBag
1096+heightBagRemoveMaybe (Height h) b@(HeightBag s c) = heightBagVerify . removed <$> IntMap.lookup h c where
1097+ removed old = HeightBag (pred s) $ case old of
1098+ 0 -> IntMap.delete h c
1099+ _ -> IntMap.insert h (pred old) c
1066heightBagMax :: HeightBag -> Height
1102heightBagMax :: HeightBag -> Height
1067heightBagMax (HeightBag _ c) = case IntMap.maxViewWithKey c of
1103heightBagMax (HeightBag _ c) = case IntMap.maxViewWithKey c of
1068 Just ((h, _), _) -> Height h
1104 Just ((h, _), _) -> Height h
@@ -1080,25 +1116,25 @@ heightBagVerify b@(HeightBag s c) = if
1080heightBagVerify = id
1116heightBagVerify = id
1083−data FanSubscribedChildren (x :: *) k a = FanSubscribedChildren
1119+data FanSubscribedChildren x k v a = FanSubscribedChildren
1084− { _fanSubscribedChildren_list :: !(WeakBag (Subscriber x a))
1120+ { _fanSubscribedChildren_list :: !(WeakBag (Subscriber x (v a)))
1085− , _fanSubscribedChildren_self :: {-# NOUNPACK #-} !(k a, FanSubscribed x k)
1121+ , _fanSubscribedChildren_self :: {-# NOUNPACK #-} !(k a, FanSubscribed x k v)
1086− , _fanSubscribedChildren_weakSelf :: !(IORef (Weak (k a, FanSubscribed x k)))
1122+ , _fanSubscribedChildren_weakSelf :: !(IORef (Weak (k a, FanSubscribed x k v)))
1089−data FanSubscribed (x :: *) k
1125+data FanSubscribed x k v
1090− = FanSubscribed { fanSubscribedCachedSubscribed :: !(IORef (Maybe (FanSubscribed x k)))
1126+ = FanSubscribed { fanSubscribedCachedSubscribed :: !(IORef (Maybe (FanSubscribed x k v)))
1091− , fanSubscribedOccurrence :: !(IORef (Maybe (DMap k Identity)))
1127+ , fanSubscribedOccurrence :: !(IORef (Maybe (DMap k v)))
1092− , fanSubscribedSubscribers :: !(IORef (DMap k (FanSubscribedChildren x k))) -- This DMap should never be empty
1128+ , fanSubscribedSubscribers :: !(IORef (DMap k (FanSubscribedChildren x k v))) -- This DMap should never be empty
1093 , fanSubscribedParent :: !(EventSubscription x)
1129 , fanSubscribedParent :: !(EventSubscription x)
1094#ifdef DEBUG_NODEIDS
1130#ifdef DEBUG_NODEIDS
1095 , fanSubscribedNodeId :: Int
1131 , fanSubscribedNodeId :: Int
1099−data Fan x k
1135+data Fan x k v
1100− = Fan { fanParent :: !(Event x (DMap k Identity))
1136+ = Fan { fanParent :: !(Event x (DMap k v))
1101− , fanSubscribed :: !(IORef (Maybe (FanSubscribed x k)))
1137+ , fanSubscribed :: !(IORef (Maybe (FanSubscribed x k v)))
1104data SwitchSubscribed x a
1140data SwitchSubscribed x a
@@ -1152,20 +1188,35 @@ newInvalidatorSwitch subd = return $! InvalidatorSwitch subd
1152newInvalidatorPull :: Pull x a -> IO (Invalidator x)
1188newInvalidatorPull :: Pull x a -> IO (Invalidator x)
1153newInvalidatorPull p = return $! InvalidatorPull p
1189newInvalidatorPull p = return $! InvalidatorPull p
1155−instance HasSpiderTimeline x => FunctorMaybe (Event x) where
1191+instance HasSpiderTimeline x => Filterable (Event x) where
1156− fmapMaybe f = push $ return . f
1192+ mapMaybe f = push $ return . f
1158instance HasSpiderTimeline x => Align (Event x) where
1194instance HasSpiderTimeline x => Align (Event x) where
1159 nil = eventNever
1195 nil = eventNever
1196+#if MIN_VERSION_these(0, 8, 0)
1197+instance HasSpiderTimeline x => Semialign (Event x) where
1199+ align ea eb = mapMaybe dmapToThese $ mergeG coerce $ dynamicConst $
1160− align ea eb = fmapMaybe dmapToThese $ merge $ dynamicConst $ DMap.fromDistinctAscList [LeftTag :=> ea, RightTag :=> eb]
1200+ DMap.fromDistinctAscList [LeftTag :=> ea, RightTag :=> eb]
1202+#ifdef MIN_VERSION_semialign
1203+#if MIN_VERSION_semialign(1,1,0)
1204+instance HasSpiderTimeline x => Zip (Event x) where
1206+ zip x y = mapMaybe justThese $ align x y
1209+data DynType x p = UnsafeDyn !(BehaviorM x (PatchTarget p), Event x p)
1210+ | BuildDyn !(EventM x (PatchTarget p), Event x p)
1211+ | HoldDyn !(Hold x p)
1162−newtype Dyn x p = Dyn { unDyn :: IORef (Either (BehaviorM x (PatchTarget p), Event x p) (Hold x p)) }
1213+newtype Dyn (x :: Type) p = Dyn { unDyn :: IORef (DynType x p) }
1164−newMapDyn :: HasSpiderTimeline x => (a -> b) -> Dynamic x (Identity a) -> Dynamic x (Identity b)
1215+newMapDyn :: HasSpiderTimeline x => (a -> b) -> DynamicS x (Identity a) -> DynamicS x (Identity b)
1165newMapDyn f d = dynamicDynIdentity $ unsafeBuildDynamic (fmap f $ readBehaviorTracked $ dynamicCurrent d) (Identity . f . runIdentity <$> dynamicUpdated d)
1216newMapDyn f d = dynamicDynIdentity $ unsafeBuildDynamic (fmap f $ readBehaviorTracked $ dynamicCurrent d) (Identity . f . runIdentity <$> dynamicUpdated d)
1167--TODO: Avoid the duplication between this and R.zipDynWith
1218--TODO: Avoid the duplication between this and R.zipDynWith
1168−zipDynWith :: HasSpiderTimeline x => (a -> b -> c) -> Dynamic x (Identity a) -> Dynamic x (Identity b) -> Dynamic x (Identity c)
1219+zipDynWith :: HasSpiderTimeline x => (a -> b -> c) -> DynamicS x (Identity a) -> DynamicS x (Identity b) -> DynamicS x (Identity c)
1169zipDynWith f da db =
1220zipDynWith f da db =
1170 let eab = align (dynamicUpdated da) (dynamicUpdated db)
1221 let eab = align (dynamicUpdated da) (dynamicUpdated db)
1171 ec = flip push eab $ \o -> do
1222 ec = flip push eab $ \o -> do
@@ -1180,26 +1231,20 @@ zipDynWith f da db =
1180 return $ Just $ Identity $ f a b
1231 return $ Just $ Identity $ f a b
1181 in dynamicDynIdentity $ unsafeBuildDynamic (f <$> readBehaviorUntracked (dynamicCurrent da) <*> readBehaviorUntracked (dynamicCurrent db)) ec
1232 in dynamicDynIdentity $ unsafeBuildDynamic (f <$> readBehaviorUntracked (dynamicCurrent da) <*> readBehaviorUntracked (dynamicCurrent db)) ec
1183−buildDynamic :: (Defer (SomeDynInit x) m, Patch p) => BehaviorM x (PatchTarget p) -> Event x p -> m (Dyn x p)
1234+buildDynamic :: (Defer (SomeDynInit x) m, Patch p) => EventM x (PatchTarget p) -> Event x p -> m (Dyn x p)
1184buildDynamic readV0 v' = do
1235buildDynamic readV0 v' = do
1185− result <- liftIO $ newIORef $ Left (readV0, v')
1236+ result <- liftIO $ newIORef $ BuildDyn (readV0, v')
1186 let !d = Dyn result
1237 let !d = Dyn result
1187 defer $ SomeDynInit d
1238 defer $ SomeDynInit d
1188 return d
1239 return d
1190unsafeBuildDynamic :: BehaviorM x (PatchTarget p) -> Event x p -> Dyn x p
1241unsafeBuildDynamic :: BehaviorM x (PatchTarget p) -> Event x p -> Dyn x p
1191−unsafeBuildDynamic readV0 v' = Dyn $ unsafeNewIORef x $ Left x
1242+unsafeBuildDynamic readV0 v' =
1192− where x = (readV0, v')
1243+ Dyn $ unsafePerformIO $ newIORef $ UnsafeDyn (readV0, v')
1194-- ResultM can read behaviors and events
1245-- ResultM can read behaviors and events
1195type ResultM = EventM
1246type ResultM = EventM
1197−{-# NOINLINE unsafeNewIORef #-}
1198−unsafeNewIORef :: a -> b -> IORef b
1199−unsafeNewIORef a b = unsafePerformIO $ do
1203instance HasSpiderTimeline x => Functor (Event x) where
1248instance HasSpiderTimeline x => Functor (Event x) where
1204 fmap f = push $ return . Just . f
1249 fmap f = push $ return . Just . f
@@ -1212,33 +1257,42 @@ push f e = cacheEvent (pushCheap f e)
1213{-# INLINABLE pull #-}
1258{-# INLINABLE pull #-}
1214pull :: BehaviorM x a -> Behavior x a
1259pull :: BehaviorM x a -> Behavior x a
1215−pull a = behaviorPull $ Pull
1260+pull a = unsafePerformIO $ do
1216− { pullCompute = a
1261+ ref <- newIORef Nothing
1217− , pullValue = unsafeNewIORef a Nothing
1218#ifdef DEBUG_NODEIDS
1262#ifdef DEBUG_NODEIDS
1219− , pullNodeId = unsafeNodeId a
1263+ nid <- newNodeId
1265+ pure $ behaviorPull $ Pull
1268+#ifdef DEBUG_NODEIDS
1223{-# INLINABLE switch #-}
1273{-# INLINABLE switch #-}
1224switch :: HasSpiderTimeline x => Behavior x (Event x a) -> Event x a
1274switch :: HasSpiderTimeline x => Behavior x (Event x a) -> Event x a
1275+switch a = unsafePerformIO $ do
1276+ ref <- newIORef Nothing
1225−switch a = eventSwitch $ Switch
1277+ pure $ eventSwitch $ Switch
1226− { switchParent = a
1278+ { switchParent = a
1227− , switchSubscribed = unsafeNewIORef a Nothing
1279+ , switchSubscribed = ref
1230coincidence :: HasSpiderTimeline x => Event x (Event x a) -> Event x a
1282coincidence :: HasSpiderTimeline x => Event x (Event x a) -> Event x a
1283+coincidence a = unsafePerformIO $ do
1284+ ref <- newIORef Nothing
1231−coincidence a = eventCoincidence $ Coincidence
1285+ pure $ eventCoincidence $ Coincidence
1232− { coincidenceParent = a
1286+ { coincidenceParent = a
1233− , coincidenceSubscribed = unsafeNewIORef a Nothing
1287+ , coincidenceSubscribed = ref
1236-- Propagate the given event occurrence; before cleaning up, run the given action, which may read the state of events and behaviors
1290-- Propagate the given event occurrence; before cleaning up, run the given action, which may read the state of events and behaviors
1237run :: forall x b. HasSpiderTimeline x => [DSum (RootTrigger x) Identity] -> ResultM x b -> SpiderHost x b
1291run :: forall x b. HasSpiderTimeline x => [DSum (RootTrigger x) Identity] -> ResultM x b -> SpiderHost x b
1238run roots after = do
1292run roots after = do
1239 tracePropagate (Proxy :: Proxy x) $ "Running an event frame with " <> show (length roots) <> " events"
1293 tracePropagate (Proxy :: Proxy x) $ "Running an event frame with " <> show (length roots) <> " events"
1240− t <- SpiderHost ask
1294+ let t = spiderTimeline :: SpiderTimelineEnv x
1241− result <- SpiderHost $ lift $ withMVar (_spiderTimeline_lock t) $ \_ -> flip runReaderT t $ unSpiderHost $ runFrame $ do
1295+ result <- SpiderHost $ withMVar (_spiderTimeline_lock (unSTE t)) $ \_ -> unSpiderHost $ runFrame $ do
1242 rootsToPropagate <- forM roots $ \r@(RootTrigger (_, occRef, k) :=> a) -> do
1296 rootsToPropagate <- forM roots $ \r@(RootTrigger (_, occRef, k) :=> a) -> do
1243 occBefore <- liftIO $ do
1297 occBefore <- liftIO $ do
1244 occBefore <- readIORef occRef
1298 occBefore <- readIORef occRef
@@ -1276,11 +1330,11 @@ scheduleMerge' initialHeight heightRef a = scheduleMerge initialHeight $ do
1276 GT -> scheduleMerge' height heightRef a -- The height has been increased (by a coincidence event; TODO: is this the only way?)
1330 GT -> scheduleMerge' height heightRef a -- The height has been increased (by a coincidence event; TODO: is this the only way?)
1279−data SomeClear = forall a. SomeClear {-# UNPACK #-} !(IORef (Maybe a))
1333+newtype Clear a = Clear (IORef (Maybe a))
1281−data SomeIntClear = forall a. SomeIntClear {-# UNPACK #-} !(IORef (IntMap a))
1335+newtype IntClear a = IntClear (IORef (IntMap a))
1283−data SomeRootClear = forall k. SomeRootClear {-# UNPACK #-} !(IORef (DMap k Identity))
1337+newtype RootClear k = RootClear (IORef (DMap k Identity))
1285data SomeAssignment x = forall a. SomeAssignment {-# UNPACK #-} !(IORef a) {-# UNPACK #-} !(IORef [Weak (Invalidator x)]) a
1339data SomeAssignment x = forall a. SomeAssignment {-# UNPACK #-} !(IORef a) {-# UNPACK #-} !(IORef [Weak (Invalidator x)]) a
@@ -1292,55 +1346,110 @@ mkWeakPtrWithDebug x debugNote = do
1292 x' <- evaluate x
1346 x' <- evaluate x
1293 mkWeakPtr x' $
1347 mkWeakPtr x' $
1294 if debugFinalize
1348 if debugFinalize
1295− then Just $ putStrLn $ "finalizing: " ++ debugNote
1349+ then Just $ debugStrLn $ "finalizing: " ++ debugNote
1296 else Nothing
1350 else Nothing
1298type WeakList a = [Weak a]
1352type WeakList a = [Weak a]
1300−{-# INLINE withIncreasedDepth #-}
1354+type CanTrace x m = (HasSpiderTimeline x, MonadIO m)
1301#ifdef DEBUG
1359#ifdef DEBUG
1361+debugSubscriber :: forall x a. HasSpiderTimeline x => String -> Subscriber x a -> IO (Subscriber x a)
1362+debugSubscriber description = return . debugSubscriber' description
1364+debugSubscriber' :: forall x a. HasSpiderTimeline x => String -> Subscriber x a -> Subscriber x a
1365+debugSubscriber' description subscribed = Subscriber
1367+ subscriberPropagate = \m -> do
1368+ tracePropagate (Proxy :: Proxy x) ("subscriberPropagate: " <> description)
1369+ subscriberPropagate subscribed m
1370+ , subscriberInvalidateHeight = \old -> do
1371+ traceInvalidateHeight $ "invalidateSubscriberHeight: " <> description <> ", old = " <> show (unHeight old)
1372+ subscriberInvalidateHeight subscribed old
1373+ traceInvalidateHeight $ "invalidateSubscriberHeight: " <> description <> ", done"
1374+ , subscriberRecalculateHeight = \new -> do
1375+ traceInvalidateHeight $ "subscriberRecalculateHeight: " <> description <> ", new = " <> show (unHeight new)
1376+ subscriberRecalculateHeight subscribed new
1377+ traceInvalidateHeight $ "subscriberRecalculateHeight: " <> description <> ", done"
1302−withIncreasedDepth :: CanTrace x m => m a -> m a
1381+{-# INLINE withIncreasedDepth #-}
1382+withIncreasedDepth :: forall proxy x m a. CanTrace x m => proxy x -> m a -> m a
1303−withIncreasedDepth a = do
1383+withIncreasedDepth _ a = do
1304− spiderTimeline <- askSpiderTimelineEnv
1305− liftIO $ modifyIORef' (_spiderTimeline_depth spiderTimeline) succ
1384+ liftIO $ modifyIORef' (_spiderTimeline_depth $ unSTE (spiderTimeline :: SpiderTimelineEnv x)) succ
1306 result <- a
1385 result <- a
1307− liftIO $ modifyIORef' (_spiderTimeline_depth spiderTimeline) pred
1386+ liftIO $ modifyIORef' (_spiderTimeline_depth $ unSTE (spiderTimeline :: SpiderTimelineEnv x)) pred
1308 return result
1387 return result
1310−withIncreasedDepth :: m a -> m a
1311−withIncreasedDepth = id
1314−type CanTrace x m = (HasSpiderTimeline x, MonadIO m)
1316{-# INLINE tracePropagate #-}
1389{-# INLINE tracePropagate #-}
1317tracePropagate :: (CanTrace x m) => proxy x -> String -> m ()
1390tracePropagate :: (CanTrace x m) => proxy x -> String -> m ()
1318−tracePropagate p = traceWhen p debugPropagate
1391+tracePropagate p = when debugPropagate . trace p
1320{-# INLINE traceInvalidate #-}
1393{-# INLINE traceInvalidate #-}
1321traceInvalidate :: String -> IO ()
1394traceInvalidate :: String -> IO ()
1322−traceInvalidate = when debugInvalidate . liftIO . putStrLn
1395+traceInvalidate = when debugInvalidate . liftIO . debugStrLn
1324−{-# INLINE traceWhen #-}
1397+{-# INLINE traceInvalidateHeight #-}
1325−traceWhen :: (CanTrace x m) => proxy x -> Bool -> String -> m ()
1398+traceInvalidateHeight :: String -> IO ()
1326−traceWhen p b message = traceMWhen p b $ return message
1399+traceInvalidateHeight = when debugInvalidateHeight . liftIO . debugStrLn
1328−{-# INLINE traceMWhen #-}
1401+{-# INLINE trace #-}
1329−traceMWhen :: (CanTrace x m) => proxy x -> Bool -> m String -> m ()
1402+trace :: (CanTrace x m) => proxy x -> String -> m ()
1403+trace p message = traceM p $ return message
1405+{-# INLINE traceM #-}
1406+traceM :: forall x proxy m. (CanTrace x m) => proxy x -> m String -> m ()
1330−traceMWhen _ b getMessage = when b $ do
1407+traceM _ getMessage = do
1331 message <- getMessage
1408 message <- getMessage
1333− spiderTimeline <- askSpiderTimelineEnv
1334− d <- liftIO $ readIORef $ _spiderTimeline_depth spiderTimeline
1409+ d <- liftIO $ readIORef $ _spiderTimeline_depth $ unSTE (spiderTimeline :: SpiderTimelineEnv x)
1410+ liftIO $ debugStrLn $ replicate d ' ' <> message
1414+{-# INLINE withIncreasedDepth #-}
1415+withIncreasedDepth :: proxy x -> m a -> m a
1416+withIncreasedDepth _ = id
1418+{-# INLINE tracePropagate #-}
1419+tracePropagate :: (CanTrace x m) => proxy x -> String -> m ()
1420+tracePropagate _ _ = return ()
1422+{-# INLINE traceInvalidate #-}
1423+traceInvalidate :: String -> IO ()
1424+traceInvalidate _ = return ()
1426+{-# INLINE traceInvalidateHeight #-}
1427+traceInvalidateHeight :: String -> IO ()
1428+traceInvalidateHeight _ = return ()
1430+{-# INLINE debugSubscriber #-}
1431+debugSubscriber :: String -> Subscriber x a -> IO (Subscriber x a)
1432+debugSubscriber _ = return
1434+{-# INLINE debugSubscriber' #-}
1435+debugSubscriber' :: String -> Subscriber x a -> Subscriber x a
1436+debugSubscriber' _ = id
1440+{-# INLINE trace #-}
1441+trace :: (CanTrace x m) => proxy x -> String -> m ()
1442+trace _ _ = return ()
1444+{-# INLINE traceM #-}
1445+traceM :: (CanTrace x m) => proxy x -> m String -> m ()
1446+traceM _ _ = return ()
1338− liftIO $ putStrLn $ replicate d ' ' <> message
1340whoCreatedIORef :: IORef a -> IO [String]
1450whoCreatedIORef :: IORef a -> IO [String]
1341whoCreatedIORef (IORef a) = whoCreated $! a
1451whoCreatedIORef (IORef a) = whoCreated $! a
1344groupByHead :: Eq a => [NonEmpty a] -> [(a, NonEmpty [a])]
1453groupByHead :: Eq a => [NonEmpty a] -> [(a, NonEmpty [a])]
1345groupByHead = \case
1454groupByHead = \case
1346 [] -> []
1455 [] -> []
@@ -1351,20 +1460,54 @@ groupByHead = \case
1351 | otherwise -> (x, xs :| []) : l
1460 | otherwise -> (x, xs :| []) : l
1353listsToForest :: Eq a => [[a]] -> Forest a
1462listsToForest :: Eq a => [[a]] -> Forest a
1354−listsToForest l = fmap (\(a, l') -> Node a $ listsToForest $ toList l') $ groupByHead $ catMaybes $ fmap nonEmpty l
1463+listsToForest lists = buildForest <$> groupByHead (mapMaybe nonEmpty lists)
1464+ where buildForest (a, lists') = Node a $ listsToForest $ toList lists'
1466+showStacks :: [[String]] -> String
1467+showStacks = drawForest . listsToForest . fmap (filterStack "Reflex.Spider.Internal")
1469+filterStack :: String -> [String] -> [String]
1470+#ifdef DEBUG_HIDE_INTERNALS
1471+filterStack prefix = filter (not . (prefix `isPrefixOf`))
1473+filterStack prefix = id
1478+data EventLoopException = EventLoopException [[String]]
1479+instance Exception EventLoopException
1481+instance Show EventLoopException where
1482+ show (EventLoopException stacks) = "causality loop detected:\n" <> if null stacks
1483+ then "no location information, compile with profiling enabled for stack tree"
1484+ else showStacks stacks
1488+data EventLoopException = EventLoopException
1489+instance Exception EventLoopException
1491+instance Show EventLoopException where
1492+ show EventLoopException = "causality loop detected: \n" <>
1493+ "compile reflex with flag 'debug-cycles' and compile with profiling enabled for stack tree"
1357{-# INLINE propagateSubscriberHold #-}
1498{-# INLINE propagateSubscriberHold #-}
1358propagateSubscriberHold :: forall x p. (HasSpiderTimeline x, Patch p) => Hold x p -> p -> EventM x ()
1499propagateSubscriberHold :: forall x p. (HasSpiderTimeline x, Patch p) => Hold x p -> p -> EventM x ()
1359propagateSubscriberHold h a = do
1500propagateSubscriberHold h a = do
1360− {-# SCC "trace" #-} traceMWhen (Proxy :: Proxy x) debugPropagate $ liftIO $ do
1501+ {-# SCC "trace" #-} when debugPropagate $ traceM (Proxy :: Proxy x) $ liftIO $ do
1361 invalidators <- liftIO $ readIORef $ holdInvalidators h
1502 invalidators <- liftIO $ readIORef $ holdInvalidators h
1362 return $ "SubscriberHold" <> showNodeId h <> ": " ++ show (length invalidators)
1503 return $ "SubscriberHold" <> showNodeId h <> ": " ++ show (length invalidators)
1363 v <- {-# SCC "read" #-} liftIO $ readIORef $ holdValue h
1505 v <- {-# SCC "read" #-} liftIO $ readIORef $ holdValue h
1364 case {-# SCC "apply" #-} apply a v of
1506 case {-# SCC "apply" #-} apply a v of
1365 Nothing -> return ()
1507 Nothing -> return ()
1366 Just v' -> do
1508 Just v' -> do
1509+ {-# SCC "trace2" #-} withIncreasedDepth (Proxy :: Proxy x) $
1367− {-# SCC "trace2" #-} withIncreasedDepth $ tracePropagate (Proxy :: Proxy x) $ "propagateSubscriberHold: assigning Hold" <> showNodeId h
1510+ tracePropagate (Proxy :: Proxy x) ("propagateSubscriberHold: assigning Hold" <> showNodeId h)
1368 vRef <- {-# SCC "vRef" #-} liftIO $ evaluate $ holdValue h
1511 vRef <- {-# SCC "vRef" #-} liftIO $ evaluate $ holdValue h
1369 iRef <- {-# SCC "iRef" #-} liftIO $ evaluate $ holdInvalidators h
1512 iRef <- {-# SCC "iRef" #-} liftIO $ evaluate $ holdInvalidators h
1370 defer $ {-# SCC "assignment" #-} SomeAssignment vRef iRef v'
1513 defer $ {-# SCC "assignment" #-} SomeAssignment vRef iRef v'
@@ -1372,25 +1515,25 @@ propagateSubscriberHold h a = do
1372data SomeResetCoincidence x = forall a. SomeResetCoincidence !(EventSubscription x) !(Maybe (CoincidenceSubscribed x a)) -- The CoincidenceSubscriber will be present only if heights need to be reset
1515data SomeResetCoincidence x = forall a. SomeResetCoincidence !(EventSubscription x) !(Maybe (CoincidenceSubscribed x a)) -- The CoincidenceSubscriber will be present only if heights need to be reset
1374runBehaviorM :: BehaviorM x a -> Maybe (Weak (Invalidator x), IORef [SomeBehaviorSubscribed x]) -> IORef [SomeHoldInit x] -> IO a
1517runBehaviorM :: BehaviorM x a -> Maybe (Weak (Invalidator x), IORef [SomeBehaviorSubscribed x]) -> IORef [SomeHoldInit x] -> IO a
1375−runBehaviorM a mwi holdInits = runReaderT (unBehaviorM a) (mwi, holdInits)
1518+runBehaviorM a mwi holdInits = runReaderIO (unBehaviorM a) (mwi, holdInits)
1377askInvalidator :: BehaviorM x (Maybe (Weak (Invalidator x)))
1520askInvalidator :: BehaviorM x (Maybe (Weak (Invalidator x)))
1378askInvalidator = do
1521askInvalidator = do
1379− (!m, _) <- BehaviorM ask
1522+ (!m, _) <- ask
1380 case m of
1523 case m of
1381 Nothing -> return Nothing
1524 Nothing -> return Nothing
1382 Just (!wi, _) -> return $ Just wi
1525 Just (!wi, _) -> return $ Just wi
1384askParentsRef :: BehaviorM x (Maybe (IORef [SomeBehaviorSubscribed x]))
1527askParentsRef :: BehaviorM x (Maybe (IORef [SomeBehaviorSubscribed x]))
1385askParentsRef = do
1528askParentsRef = do
1386− (!m, _) <- BehaviorM ask
1529+ (!m, _) <- ask
1387 case m of
1530 case m of
1388 Nothing -> return Nothing
1531 Nothing -> return Nothing
1389 Just (_, !p) -> return $ Just p
1532 Just (_, !p) -> return $ Just p
1391askBehaviorHoldInits :: BehaviorM x (IORef [SomeHoldInit x])
1534askBehaviorHoldInits :: BehaviorM x (IORef [SomeHoldInit x])
1392askBehaviorHoldInits = do
1535askBehaviorHoldInits = do
1393− (_, !his) <- BehaviorM ask
1536+ (_, !his) <- ask
1394 return his
1537 return his
1396{-# INLINE getDynHold #-}
1539{-# INLINE getDynHold #-}
@@ -1398,20 +1541,27 @@ getDynHold :: (Defer (SomeHoldInit x) m, Patch p) => Dyn x p -> m (Hold x p)
1398getDynHold d = do
1541getDynHold d = do
1399 mh <- liftIO $ readIORef $ unDyn d
1542 mh <- liftIO $ readIORef $ unDyn d
1400 case mh of
1543 case mh of
1401− Right h -> return h
1544+ HoldDyn h -> return h
1402− Left (readV0, v') -> do
1545+ UnsafeDyn (readV0, v') -> do
1403 holdInits <- getDeferralQueue
1546 holdInits <- getDeferralQueue
1404 v0 <- liftIO $ runBehaviorM readV0 Nothing holdInits
1547 v0 <- liftIO $ runBehaviorM readV0 Nothing holdInits
1549+ BuildDyn (readV0, v') -> do
1550+ v0 <- liftIO $ runEventM readV0
1405 h <- hold v0 v'
1554 h <- hold v0 v'
1406− liftIO $ writeIORef (unDyn d) $ Right h
1555+ liftIO $ writeIORef (unDyn d) $ HoldDyn h
1407 return h
1556 return h
1409-- Always refers to 0
1559-- Always refers to 0
1410{-# NOINLINE zeroRef #-}
1560{-# NOINLINE zeroRef #-}
1411zeroRef :: IORef Height
1561zeroRef :: IORef Height
1412zeroRef = unsafePerformIO $ newIORef zeroHeight
1562zeroRef = unsafePerformIO $ newIORef zeroHeight
1414−getRootSubscribed :: GCompare k => k a -> Root x k -> Subscriber x a -> IO (WeakBagTicket, RootSubscribed x a, Maybe a)
1564+getRootSubscribed :: forall k x a. (GCompare k, HasSpiderTimeline x) => k a -> Root x k -> Subscriber x a -> IO (WeakBagTicket, RootSubscribed x a, Maybe a)
1415getRootSubscribed k r sub = do
1565getRootSubscribed k r sub = do
1416 mSubscribed <- readIORef $ rootSubscribed r
1566 mSubscribed <- readIORef $ rootSubscribed r
1417 let getOcc = fmap (coerce . DMap.lookup k) $ readIORef $ rootOccurrence r
1567 let getOcc = fmap (coerce . DMap.lookup k) $ readIORef $ rootOccurrence r
@@ -1425,9 +1575,14 @@ getRootSubscribed k r sub = do
1425 let !cached = rootSubscribed r
1575 let !cached = rootSubscribed r
1426 uninitRef <- newIORef $ error "getRootsubscribed: uninitRef not initialized"
1576 uninitRef <- newIORef $ error "getRootsubscribed: uninitRef not initialized"
1427 (subs, sln) <- WeakBag.singleton sub weakSelf cleanupRootSubscribed
1577 (subs, sln) <- WeakBag.singleton sub weakSelf cleanupRootSubscribed
1428− when debugPropagate $ putStrLn $ "getRootSubscribed: calling rootInit"
1579+ tracePropagate (Proxy::Proxy x) $ "getRootSubscribed: calling rootInit"
1429 uninit <- rootInit r k $ RootTrigger (subs, rootOccurrence r, k)
1581 uninit <- rootInit r k $ RootTrigger (subs, rootOccurrence r, k)
1430 writeIORef uninitRef $! uninit
1582 writeIORef uninitRef $! uninit
1583+#ifdef DEBUG_NODEIDS
1431 let !subscribed = RootSubscribed
1586 let !subscribed = RootSubscribed
1432 { rootSubscribedKey = k
1587 { rootSubscribedKey = k
1433 , rootSubscribedCachedSubscribed = cached
1588 , rootSubscribedCachedSubscribed = cached
@@ -1436,7 +1591,7 @@ getRootSubscribed k r sub = do
1436 , rootSubscribedUninit = uninit
1591 , rootSubscribedUninit = uninit
1437 , rootSubscribedWeakSelf = weakSelf
1592 , rootSubscribedWeakSelf = weakSelf
1438#ifdef DEBUG_NODEIDS
1593#ifdef DEBUG_NODEIDS
1439− , rootSubscribedNodeId = unsafeNodeId (k, r, subs)
1594+ , rootSubscribedNodeId = nid
1442 -- If we die at the same moment that all our children die, they will
1597 -- If we die at the same moment that all our children die, they will
@@ -1472,6 +1627,9 @@ data FanInt x a = FanInt
1472 { _fanInt_subscribers :: {-# UNPACK #-} !(FastMutableIntMap (FastWeakBag (Subscriber x a))) --TODO: Clean up the keys in here when their child weak bags get empty --TODO: Remove our own subscription when the subscribers list is completely empty
1627 { _fanInt_subscribers :: {-# UNPACK #-} !(FastMutableIntMap (FastWeakBag (Subscriber x a))) --TODO: Clean up the keys in here when their child weak bags get empty --TODO: Remove our own subscription when the subscribers list is completely empty
1473 , _fanInt_subscriptionRef :: {-# UNPACK #-} !(IORef (EventSubscription x)) -- This should have a valid subscription iff subscribers is non-empty
1628 , _fanInt_subscriptionRef :: {-# UNPACK #-} !(IORef (EventSubscription x)) -- This should have a valid subscription iff subscribers is non-empty
1474 , _fanInt_occRef :: {-# UNPACK #-} !(IORef (IntMap a))
1629 , _fanInt_occRef :: {-# UNPACK #-} !(IORef (IntMap a))
1630+#ifdef DEBUG_NODEIDS
1631+ , _fanInt_nodeId :: {-# UNPACK #-} !Int
1477newFanInt :: IO (FanInt x a)
1635newFanInt :: IO (FanInt x a)
@@ -1479,38 +1637,39 @@ newFanInt = do
1479 subscribers <- FastMutableIntMap.newEmpty --TODO: Clean up the keys in here when their child weak bags get empty --TODO: Remove our own subscription when the subscribers list is completely empty
1637 subscribers <- FastMutableIntMap.newEmpty --TODO: Clean up the keys in here when their child weak bags get empty --TODO: Remove our own subscription when the subscribers list is completely empty
1480 subscriptionRef <- newIORef $ error "fanInt: no subscription"
1638 subscriptionRef <- newIORef $ error "fanInt: no subscription"
1481 occRef <- newIORef $ error "fanInt: no occurrence"
1639 occRef <- newIORef $ error "fanInt: no occurrence"
1640+#ifdef DEBUG_NODEIDS
1641+ nodeId <- newNodeId
1482 return $ FanInt
1643 return $ FanInt
1483 { _fanInt_subscribers = subscribers
1644 { _fanInt_subscribers = subscribers
1484 , _fanInt_subscriptionRef = subscriptionRef
1645 , _fanInt_subscriptionRef = subscriptionRef
1485 , _fanInt_occRef = occRef
1646 , _fanInt_occRef = occRef
1647+#ifdef DEBUG_NODEIDS
1648+ , _fanInt_nodeId = nodeId
1488−{-# NOINLINE unsafeNewFanInt #-}
1489−unsafeNewFanInt :: b -> FanInt x a
1490−unsafeNewFanInt b = unsafePerformIO $ do
1494fanInt :: HasSpiderTimeline x => Event x (IntMap a) -> EventSelectorInt x a
1652fanInt :: HasSpiderTimeline x => Event x (IntMap a) -> EventSelectorInt x a
1495−fanInt p =
1653+fanInt p = unsafePerformIO $ do
1496− let self = unsafeNewFanInt p
1654+ self <- newFanInt
1497− in EventSelectorInt $ \k -> Event $ \sub -> do
1655+ pure $ EventSelectorInt $ \k -> Event $ \sub -> do
1498 isEmpty <- liftIO $ FastMutableIntMap.isEmpty (_fanInt_subscribers self)
1656 isEmpty <- liftIO $ FastMutableIntMap.isEmpty (_fanInt_subscribers self)
1499 when isEmpty $ do -- This is the first subscriber, so we need to subscribe to our input
1657 when isEmpty $ do -- This is the first subscriber, so we need to subscribe to our input
1658+ let desc = "fanInt" <> showNodeId self <> ", k = " <> show k
1500− (subscription, parentOcc) <- subscribeAndRead p $ Subscriber
1659+ (subscription, parentOcc) <- subscribeAndRead p $ debugSubscriber' desc $ Subscriber
1501 { subscriberPropagate = \m -> do
1660 { subscriberPropagate = \m -> do
1502 liftIO $ writeIORef (_fanInt_occRef self) m
1661 liftIO $ writeIORef (_fanInt_occRef self) m
1503 scheduleIntClear $ _fanInt_occRef self
1662 scheduleIntClear $ _fanInt_occRef self
1504− FastMutableIntMap.forIntersectionWithImmutable_ (_fanInt_subscribers self) m $ \b v -> do --TODO: Do we need to know that no subscribers are being added as we traverse?
1663+ FastMutableIntMap.forIntersectionWithImmutable_ (_fanInt_subscribers self) m $ \b v -> --TODO: Do we need to know that no subscribers are being added as we traverse?
1505− FastWeakBag.traverse b $ \s -> do
1664+ FastWeakBag.traverse_ b $ \s ->
1506 subscriberPropagate s v
1665 subscriberPropagate s v
1507− , subscriberInvalidateHeight = \old -> do
1666+ , subscriberInvalidateHeight = \old ->
1508− FastMutableIntMap.for_ (_fanInt_subscribers self) $ \b -> do
1667+ FastMutableIntMap.for_ (_fanInt_subscribers self) $ \b ->
1509− FastWeakBag.traverse b $ \s -> do
1668+ FastWeakBag.traverse_ b $ \s ->
1510 subscriberInvalidateHeight s old
1669 subscriberInvalidateHeight s old
1511− , subscriberRecalculateHeight = \new -> do
1670+ , subscriberRecalculateHeight = \new ->
1512− FastMutableIntMap.for_ (_fanInt_subscribers self) $ \b -> do
1671+ FastMutableIntMap.for_ (_fanInt_subscribers self) $ \b ->
1513− FastWeakBag.traverse b $ \s -> do
1672+ FastWeakBag.traverse_ b $ \s ->
1514 subscriberRecalculateHeight s new
1673 subscriberRecalculateHeight s new
1516 liftIO $ do
1675 liftIO $ do
@@ -1524,13 +1683,28 @@ fanInt p =
1524 FastMutableIntMap.insert (_fanInt_subscribers self) k b
1683 FastMutableIntMap.insert (_fanInt_subscribers self) k b
1525 return b
1684 return b
1526 Just b -> return b
1685 Just b -> return b
1527− t <- liftIO $ FastWeakBag.insert sub b
1686+ ticket <- liftIO $ FastWeakBag.insert sub b
1528 currentOcc <- readIORef (_fanInt_occRef self)
1687 currentOcc <- readIORef (_fanInt_occRef self)
1529− (EventSubscription _ (EventSubscribed !heightRef _)) <- readIORef (_fanInt_subscriptionRef self)
1688+
1689+ subscribed <- fanIntSubscribed ticket self
1530− return (EventSubscription (FastWeakBag.remove t) $! EventSubscribed heightRef $! toAny (_fanInt_subscriptionRef self, t), IntMap.lookup k currentOcc)
1690+ return (EventSubscription (FastWeakBag.remove ticket) subscribed, IntMap.lookup k currentOcc)
1692+fanIntSubscribed :: FastWeakBagTicket k -> FanInt x a -> IO (EventSubscribed x)
1693+fanIntSubscribed ticket self = do
1694+ subscribedParent <- _eventSubscription_subscribed <$> readIORef (_fanInt_subscriptionRef self)
1695+ return $ EventSubscribed
1696+ { eventSubscribedHeightRef = eventSubscribedHeightRef subscribedParent
1697+ , eventSubscribedRetained = toAny (_fanInt_subscriptionRef self, ticket)
1699+ , eventSubscribedGetParents = return [subscribedParent]
1700+ , eventSubscribedHasOwnHeightRef = False
1701+ , eventSubscribedWhoCreated = whoCreatedIORef $ _fanInt_subscriptionRef self
1532{-# INLINABLE getFanSubscribed #-}
1706{-# INLINABLE getFanSubscribed #-}
1533−getFanSubscribed :: (HasSpiderTimeline x, GCompare k) => k a -> Fan x k -> Subscriber x a -> EventM x (WeakBagTicket, FanSubscribed x k, Maybe a)
1707+getFanSubscribed :: (HasSpiderTimeline x, GCompare k) => k a -> Fan x k v -> Subscriber x (v a) -> EventM x (WeakBagTicket, FanSubscribed x k v, Maybe (v a))
1534getFanSubscribed k f sub = do
1708getFanSubscribed k f sub = do
1535 mSubscribed <- liftIO $ readIORef $ fanSubscribed f
1709 mSubscribed <- liftIO $ readIORef $ fanSubscribed f
1536 case mSubscribed of
1710 case mSubscribed of
@@ -1548,13 +1722,16 @@ getFanSubscribed k f sub = do
1548 subscribersRef <- liftIO $ newIORef $ error "getFanSubscribed: subscribersRef not yet initialized"
1722 subscribersRef <- liftIO $ newIORef $ error "getFanSubscribed: subscribersRef not yet initialized"
1549 occRef <- liftIO $ newIORef parentOcc
1723 occRef <- liftIO $ newIORef parentOcc
1550 when (isJust parentOcc) $ scheduleClear occRef
1724 when (isJust parentOcc) $ scheduleClear occRef
1725+#ifdef DEBUG_NODEIDS
1726+ nid <- liftIO newNodeId
1551 let subscribed = FanSubscribed
1728 let subscribed = FanSubscribed
1552 { fanSubscribedCachedSubscribed = fanSubscribed f
1729 { fanSubscribedCachedSubscribed = fanSubscribed f
1553 , fanSubscribedOccurrence = occRef
1730 , fanSubscribedOccurrence = occRef
1554 , fanSubscribedParent = subscription
1731 , fanSubscribedParent = subscription
1555 , fanSubscribedSubscribers = subscribersRef
1732 , fanSubscribedSubscribers = subscribersRef
1556#ifdef DEBUG_NODEIDS
1733#ifdef DEBUG_NODEIDS
1557− , fanSubscribedNodeId = unsafeNodeId f
1734+ , fanSubscribedNodeId = nid
1560 let !self = (k, subscribed)
1737 let !self = (k, subscribed)
@@ -1564,7 +1741,7 @@ getFanSubscribed k f sub = do
1564 liftIO $ writeIORef (fanSubscribed f) $ Just subscribed
1741 liftIO $ writeIORef (fanSubscribed f) $ Just subscribed
1565 return (slnForSub, subscribed, coerce $ DMap.lookup k =<< parentOcc)
1742 return (slnForSub, subscribed, coerce $ DMap.lookup k =<< parentOcc)
1567−cleanupFanSubscribed :: GCompare k => (k a, FanSubscribed x k) -> IO ()
1744+cleanupFanSubscribed :: GCompare k => (k a, FanSubscribed x k v) -> IO ()
1568cleanupFanSubscribed (k, subscribed) = do
1745cleanupFanSubscribed (k, subscribed) = do
1569 subscribers <- readIORef $ fanSubscribedSubscribers subscribed
1746 subscribers <- readIORef $ fanSubscribedSubscribers subscribed
1570 let reducedSubscribers = DMap.delete k subscribers
1747 let reducedSubscribers = DMap.delete k subscribers
@@ -1576,7 +1753,7 @@ cleanupFanSubscribed (k, subscribed) = do
1576 else writeIORef (fanSubscribedSubscribers subscribed) $! reducedSubscribers
1753 else writeIORef (fanSubscribedSubscribers subscribed) $! reducedSubscribers
1578{-# INLINE subscribeFanSubscribed #-}
1755{-# INLINE subscribeFanSubscribed #-}
1579−subscribeFanSubscribed :: GCompare k => k a -> FanSubscribed x k -> Subscriber x a -> IO WeakBagTicket
1756+subscribeFanSubscribed :: GCompare k => k a -> FanSubscribed x k v -> Subscriber x (v a) -> IO WeakBagTicket
1580subscribeFanSubscribed k subscribed sub = do
1757subscribeFanSubscribed k subscribed sub = do
1581 subscribers <- readIORef $ fanSubscribedSubscribers subscribed
1758 subscribers <- readIORef $ fanSubscribedSubscribers subscribed
1582 case DMap.lookup k subscribers of
1759 case DMap.lookup k subscribers of
@@ -1614,6 +1791,9 @@ getSwitchSubscribed s sub = do
1614 when (isJust parentOcc) $ scheduleClear occRef
1791 when (isJust parentOcc) $ scheduleClear occRef
1615 weakSelf <- liftIO $ newIORef $ error "getSwitchSubscribed: weakSelf not yet initialized"
1792 weakSelf <- liftIO $ newIORef $ error "getSwitchSubscribed: weakSelf not yet initialized"
1616 (subs, slnForSub) <- liftIO $ WeakBag.singleton sub weakSelf cleanupSwitchSubscribed
1793 (subs, slnForSub) <- liftIO $ WeakBag.singleton sub weakSelf cleanupSwitchSubscribed
1794+#ifdef DEBUG_NODEIDS
1795+ nid <- liftIO newNodeId
1617 let !subscribed = SwitchSubscribed
1797 let !subscribed = SwitchSubscribed
1618 { switchSubscribedCachedSubscribed = switchSubscribed s
1798 { switchSubscribedCachedSubscribed = switchSubscribed s
1619 , switchSubscribedOccurrence = occRef
1799 , switchSubscribedOccurrence = occRef
@@ -1626,7 +1806,7 @@ getSwitchSubscribed s sub = do
1626 , switchSubscribedCurrentParent = subscriptionRef
1806 , switchSubscribedCurrentParent = subscriptionRef
1627 , switchSubscribedWeakSelf = weakSelf
1807 , switchSubscribedWeakSelf = weakSelf
1628#ifdef DEBUG_NODEIDS
1808#ifdef DEBUG_NODEIDS
1629− , switchSubscribedNodeId = unsafeNodeId s
1809+ , switchSubscribedNodeId = nid
1632 liftIO $ writeIORef weakSelf =<< evaluate =<< mkWeakPtrWithDebug subscribed "switchSubscribedWeakSelf"
1812 liftIO $ writeIORef weakSelf =<< evaluate =<< mkWeakPtrWithDebug subscribed "switchSubscribedWeakSelf"
@@ -1671,6 +1851,9 @@ getCoincidenceSubscribed c sub = do
1671 scheduleClear innerSubdRef
1851 scheduleClear innerSubdRef
1672 weakSelf <- liftIO $ newIORef $ error "getCoincidenceSubscribed: weakSelf not yet implemented"
1852 weakSelf <- liftIO $ newIORef $ error "getCoincidenceSubscribed: weakSelf not yet implemented"
1673 (subs, slnForSub) <- liftIO $ WeakBag.singleton sub weakSelf cleanupCoincidenceSubscribed
1853 (subs, slnForSub) <- liftIO $ WeakBag.singleton sub weakSelf cleanupCoincidenceSubscribed
1854+#ifdef DEBUG_NODEIDS
1855+ nid <- liftIO newNodeId
1674 let subscribed = CoincidenceSubscribed
1857 let subscribed = CoincidenceSubscribed
1675 { coincidenceSubscribedCachedSubscribed = coincidenceSubscribed c
1858 { coincidenceSubscribedCachedSubscribed = coincidenceSubscribed c
1676 , coincidenceSubscribedOccurrence = occRef
1859 , coincidenceSubscribedOccurrence = occRef
@@ -1681,7 +1864,7 @@ getCoincidenceSubscribed c sub = do
1681 , coincidenceSubscribedInnerParent = innerSubdRef
1864 , coincidenceSubscribedInnerParent = innerSubdRef
1682 , coincidenceSubscribedWeakSelf = weakSelf
1865 , coincidenceSubscribedWeakSelf = weakSelf
1683#ifdef DEBUG_NODEIDS
1866#ifdef DEBUG_NODEIDS
1684− , coincidenceSubscribedNodeId = unsafeNodeId c
1867+ , coincidenceSubscribedNodeId = nid
1687 liftIO $ writeIORef weakSelf =<< evaluate =<< mkWeakPtrWithDebug subscribed "CoincidenceSubscribed"
1870 liftIO $ writeIORef weakSelf =<< evaluate =<< mkWeakPtrWithDebug subscribed "CoincidenceSubscribed"
@@ -1698,57 +1881,72 @@ cleanupCoincidenceSubscribed subscribed = do
1698subscribeCoincidenceSubscribed :: CoincidenceSubscribed x a -> Subscriber x a -> IO WeakBagTicket
1881subscribeCoincidenceSubscribed :: CoincidenceSubscribed x a -> Subscriber x a -> IO WeakBagTicket
1699subscribeCoincidenceSubscribed subscribed sub = WeakBag.insert sub (coincidenceSubscribedSubscribers subscribed) (coincidenceSubscribedWeakSelf subscribed) cleanupCoincidenceSubscribed
1882subscribeCoincidenceSubscribed subscribed sub = WeakBag.insert sub (coincidenceSubscribedSubscribers subscribed) (coincidenceSubscribedWeakSelf subscribed) cleanupCoincidenceSubscribed
1701−{-# INLINE merge #-}
1884+{-# INLINE mergeG #-}
1702−merge :: forall k x. (HasSpiderTimeline x, GCompare k) => Dynamic x (PatchDMap k (Event x)) -> Event x (DMap k Identity)
1885+mergeG :: forall k q x v. (HasSpiderTimeline x, GCompare k)
1886+ => (forall a. q a -> Event x (v a))
1887+ -> DynamicS x (PatchDMap k q) -> Event x (DMap k v)
1703−merge d = cacheEvent (mergeCheap d)
1888+mergeG nt d = cacheEvent (mergeCheap nt d)
1705{-# INLINE mergeWithMove #-}
1890{-# INLINE mergeWithMove #-}
1706−mergeWithMove :: forall k x. (HasSpiderTimeline x, GCompare k) => Dynamic x (PatchDMapWithMove k (Event x)) -> Event x (DMap k Identity)
1891+mergeWithMove :: forall k v q x. (HasSpiderTimeline x, GCompare k)
1892+ => (forall a. q a -> Event x (v a))
1893+ -> DynamicS x (PatchDMapWithMove k q) -> Event x (DMap k v)
1707−mergeWithMove d = cacheEvent (mergeCheapWithMove d)
1894+mergeWithMove nt d = cacheEvent (mergeCheapWithMove nt d)
1709{-# INLINE [1] mergeCheap #-}
1896{-# INLINE [1] mergeCheap #-}
1710−mergeCheap :: forall k x. (HasSpiderTimeline x, GCompare k) => Dynamic x (PatchDMap k (Event x)) -> Event x (DMap k Identity)
1898+ :: forall k x q v. (HasSpiderTimeline x, GCompare k)
1899+ => (forall a. q a -> Event x (v a))
1900+ -> DynamicS x (PatchDMap k q)
1901+ -> Event x (DMap k v)
1711−mergeCheap = mergeCheap' getInitialSubscribers updateMe destroy
1902+mergeCheap nt = mergeGCheap' unMergeSubscribedParent getInitialSubscribers updateMe destroy
1713− updateMe :: MergeUpdateFunc k x (PatchDMap k (Event x)) (MergeSubscribedParent x)
1904+ updateMe :: MergeUpdateFunc k v x (PatchDMap k q) (MergeSubscribedParent x)
1714 updateMe subscriber heightBagRef oldParents (PatchDMap p) = do
1905 updateMe subscriber heightBagRef oldParents (PatchDMap p) = do
1715 let f (subscriptionsToKill, ps) (k :=> ComposeMaybe me) = do
1906 let f (subscriptionsToKill, ps) (k :=> ComposeMaybe me) = do
1716 (mOldSubd, newPs) <- case me of
1907 (mOldSubd, newPs) <- case me of
1717 Nothing -> return $ DMap.updateLookupWithKey (\_ _ -> Nothing) k ps
1908 Nothing -> return $ DMap.updateLookupWithKey (\_ _ -> Nothing) k ps
1718 Just e -> do
1909 Just e -> do
1719 let s = subscriber $ return k
1910 let s = subscriber $ return k
1720− subscription@(EventSubscription _ subd) <- subscribe e s
1911+ subscription@(EventSubscription _ subd) <- subscribe (nt e) s
1721 newParentHeight <- liftIO $ getEventSubscribedHeight subd
1912 newParentHeight <- liftIO $ getEventSubscribedHeight subd
1722 let newParent = MergeSubscribedParent subscription
1913 let newParent = MergeSubscribedParent subscription
1723 liftIO $ modifyIORef' heightBagRef $ heightBagAdd newParentHeight
1914 liftIO $ modifyIORef' heightBagRef $ heightBagAdd newParentHeight
1724 return $ DMap.insertLookupWithKey' (\_ new _ -> new) k newParent ps
1915 return $ DMap.insertLookupWithKey' (\_ new _ -> new) k newParent ps
1725 forM_ mOldSubd $ \oldSubd -> do
1916 forM_ mOldSubd $ \oldSubd -> do
1917+ oldHeight <- liftIO $ getEventSubscribedHeight $
1726− oldHeight <- liftIO $ getEventSubscribedHeight $ _eventSubscription_subscribed $ unMergeSubscribedParent oldSubd
1918+ _eventSubscription_subscribed $ unMergeSubscribedParent oldSubd
1727 liftIO $ modifyIORef heightBagRef $ heightBagRemove oldHeight
1920 liftIO $ modifyIORef heightBagRef $ heightBagRemove oldHeight
1728 return (maybeToList (unMergeSubscribedParent <$> mOldSubd) ++ subscriptionsToKill, newPs)
1921 return (maybeToList (unMergeSubscribedParent <$> mOldSubd) ++ subscriptionsToKill, newPs)
1729 foldM f ([], oldParents) $ DMap.toList p
1922 foldM f ([], oldParents) $ DMap.toList p
1730− getInitialSubscribers :: MergeInitFunc k x (MergeSubscribedParent x)
1924+ getInitialSubscribers :: MergeInitFunc k v q x (MergeSubscribedParent x)
1731 getInitialSubscribers initialParents subscriber = do
1925 getInitialSubscribers initialParents subscriber = do
1732 subscribers <- forM (DMap.toList initialParents) $ \(k :=> e) -> do
1926 subscribers <- forM (DMap.toList initialParents) $ \(k :=> e) -> do
1733 let s = subscriber $ return k
1927 let s = subscriber $ return k
1734− (subscription@(EventSubscription _ parentSubd), parentOcc) <- subscribeAndRead e s
1928+ (subscription@(EventSubscription _ parentSubd), parentOcc) <- subscribeAndRead (nt e) s
1735 height <- liftIO $ getEventSubscribedHeight parentSubd
1929 height <- liftIO $ getEventSubscribedHeight parentSubd
1736− return (fmap (\x -> k :=> Identity x) parentOcc, height, k :=> MergeSubscribedParent subscription)
1930+ return (fmap (k :=>) parentOcc, height, k :=> MergeSubscribedParent subscription)
1737 return ( DMap.fromDistinctAscList $ mapMaybe (\(x, _, _) -> x) subscribers
1931 return ( DMap.fromDistinctAscList $ mapMaybe (\(x, _, _) -> x) subscribers
1738 , fmap (\(_, h, _) -> h) subscribers --TODO: Assert that there's no invalidHeight in here
1932 , fmap (\(_, h, _) -> h) subscribers --TODO: Assert that there's no invalidHeight in here
1739 , DMap.fromDistinctAscList $ map (\(_, _, x) -> x) subscribers
1933 , DMap.fromDistinctAscList $ map (\(_, _, x) -> x) subscribers
1741 destroy :: MergeDestroyFunc k (MergeSubscribedParent x)
1936 destroy :: MergeDestroyFunc k (MergeSubscribedParent x)
1742 destroy s = forM_ (DMap.toList s) $ \(_ :=> MergeSubscribedParent sub) -> unsubscribe sub
1937 destroy s = forM_ (DMap.toList s) $ \(_ :=> MergeSubscribedParent sub) -> unsubscribe sub
1744{-# INLINE [1] mergeCheapWithMove #-}
1939{-# INLINE [1] mergeCheapWithMove #-}
1745−mergeCheapWithMove :: forall k x. (HasSpiderTimeline x, GCompare k) => Dynamic x (PatchDMapWithMove k (Event x)) -> Event x (DMap k Identity)
1940+mergeCheapWithMove :: forall k x v q. (HasSpiderTimeline x, GCompare k)
1941+ => (forall a. q a -> Event x (v a))
1942+ -> DynamicS x (PatchDMapWithMove k q)
1943+ -> Event x (DMap k v)
1746−mergeCheapWithMove = mergeCheap' getInitialSubscribers updateMe destroy
1944+mergeCheapWithMove nt = mergeGCheap' _mergeSubscribedParentWithMove_subscription getInitialSubscribers updateMe destroy
1748− updateMe :: MergeUpdateFunc k x (PatchDMapWithMove k (Event x)) (MergeSubscribedParentWithMove x k)
1946+ updateMe :: MergeUpdateFunc k v x (PatchDMapWithMove k q) (MergeSubscribedParentWithMove x k)
1749 updateMe subscriber heightBagRef oldParents p = do
1947 updateMe subscriber heightBagRef oldParents p = do
1750 -- Prepare new parents for insertion
1948 -- Prepare new parents for insertion
1751− let subscribeParent :: forall a. k a -> Event x a -> EventM x (MergeSubscribedParentWithMove x k a)
1949+ let subscribeParent :: forall a. k a -> Event x (v a) -> EventM x (MergeSubscribedParentWithMove x k a)
1752 subscribeParent k e = do
1950 subscribeParent k e = do
1753 keyRef <- liftIO $ newIORef k
1951 keyRef <- liftIO $ newIORef k
1754 let s = subscriber $ liftIO $ readIORef keyRef
1952 let s = subscriber $ liftIO $ readIORef keyRef
@@ -1757,73 +1955,82 @@ mergeCheapWithMove = mergeCheap' getInitialSubscribers updateMe destroy
1757 newParentHeight <- getEventSubscribedHeight subd
1955 newParentHeight <- getEventSubscribedHeight subd
1758 modifyIORef' heightBagRef $ heightBagAdd newParentHeight
1956 modifyIORef' heightBagRef $ heightBagAdd newParentHeight
1759 return $ MergeSubscribedParentWithMove subscription keyRef
1957 return $ MergeSubscribedParentWithMove subscription keyRef
1760− p' <- PatchDMapWithMove.traversePatchDMapWithMoveWithKey subscribeParent p
1958+ p' <- PatchDMapWithMove.traversePatchDMapWithMoveWithKey (\k q -> subscribeParent k (nt q)) p
1761 -- Collect old parents for deletion and update the keys of moved parents
1959 -- Collect old parents for deletion and update the keys of moved parents
1762− let moveOrDelete :: forall a. k a -> PatchDMapWithMove.NodeInfo k (Event x) a -> MergeSubscribedParentWithMove x k a -> Constant (EventM x (Maybe (EventSubscription x))) a
1960+ let moveOrDelete :: forall a. k a -> PatchDMapWithMove.NodeInfo k q a -> MergeSubscribedParentWithMove x k a -> Constant (EventM x (Maybe (EventSubscription x))) a
1763 moveOrDelete _ ni parent = Constant $ case getComposeMaybe $ PatchDMapWithMove._nodeInfo_to ni of
1961 moveOrDelete _ ni parent = Constant $ case getComposeMaybe $ PatchDMapWithMove._nodeInfo_to ni of
1764 Nothing -> do
1962 Nothing -> do
1765− oldHeight <- liftIO $ getEventSubscribedHeight $ _eventSubscription_subscribed $ _mergeSubscribedParentWithMove_subscription parent
1963+ oldHeight <- liftIO $ getEventSubscribedHeight $ _eventSubscription_subscribed $
1964+ _mergeSubscribedParentWithMove_subscription parent
1766 liftIO $ modifyIORef heightBagRef $ heightBagRemove oldHeight
1966 liftIO $ modifyIORef heightBagRef $ heightBagRemove oldHeight
1767 return $ Just $ _mergeSubscribedParentWithMove_subscription parent
1967 return $ Just $ _mergeSubscribedParentWithMove_subscription parent
1768 Just toKey -> do
1968 Just toKey -> do
1769 liftIO $ writeIORef (_mergeSubscribedParentWithMove_key parent) $! toKey
1969 liftIO $ writeIORef (_mergeSubscribedParentWithMove_key parent) $! toKey
1770 return Nothing
1970 return Nothing
1971+ toDelete <- fmap catMaybes $ mapM (\(_ :=> v) -> getConstant v) $ DMap.toList $
1771− toDelete <- fmap catMaybes $ mapM (\(_ :=> v) -> getConstant v) $ DMap.toList $ DMap.intersectionWithKey moveOrDelete (unPatchDMapWithMove p) oldParents
1972+ DMap.intersectionWithKey moveOrDelete (unPatchDMapWithMove p) oldParents
1772 return (toDelete, applyAlways p' oldParents)
1974 return (toDelete, applyAlways p' oldParents)
1773− getInitialSubscribers :: MergeInitFunc k x (MergeSubscribedParentWithMove x k)
1975+ getInitialSubscribers :: MergeInitFunc k v q x (MergeSubscribedParentWithMove x k)
1774 getInitialSubscribers initialParents subscriber = do
1976 getInitialSubscribers initialParents subscriber = do
1775 subscribers <- forM (DMap.toList initialParents) $ \(k :=> e) -> do
1977 subscribers <- forM (DMap.toList initialParents) $ \(k :=> e) -> do
1776 keyRef <- liftIO $ newIORef k
1978 keyRef <- liftIO $ newIORef k
1777 let s = subscriber $ liftIO $ readIORef keyRef
1979 let s = subscriber $ liftIO $ readIORef keyRef
1778− (subscription@(EventSubscription _ parentSubd), parentOcc) <- subscribeAndRead e s
1980+ (subscription@(EventSubscription _ parentSubd), parentOcc) <- subscribeAndRead (nt e) s
1779 height <- liftIO $ getEventSubscribedHeight parentSubd
1981 height <- liftIO $ getEventSubscribedHeight parentSubd
1780− return (fmap (\x -> k :=> Identity x) parentOcc, height, k :=> MergeSubscribedParentWithMove subscription keyRef)
1982+ return (fmap (k :=>) parentOcc, height, k :=> MergeSubscribedParentWithMove subscription keyRef)
1781 return ( DMap.fromDistinctAscList $ mapMaybe (\(x, _, _) -> x) subscribers
1983 return ( DMap.fromDistinctAscList $ mapMaybe (\(x, _, _) -> x) subscribers
1782 , fmap (\(_, h, _) -> h) subscribers --TODO: Assert that there's no invalidHeight in here
1984 , fmap (\(_, h, _) -> h) subscribers --TODO: Assert that there's no invalidHeight in here
1783 , DMap.fromDistinctAscList $ map (\(_, _, x) -> x) subscribers
1985 , DMap.fromDistinctAscList $ map (\(_, _, x) -> x) subscribers
1785 destroy :: MergeDestroyFunc k (MergeSubscribedParentWithMove x k)
1988 destroy :: MergeDestroyFunc k (MergeSubscribedParentWithMove x k)
1786 destroy s = forM_ (DMap.toList s) $ \(_ :=> MergeSubscribedParentWithMove sub _) -> unsubscribe sub
1989 destroy s = forM_ (DMap.toList s) $ \(_ :=> MergeSubscribedParentWithMove sub _) -> unsubscribe sub
1788−type MergeUpdateFunc k x p s
1991+type MergeUpdateFunc k v x p s
1789− = (forall a. EventM x (k a) -> Subscriber x a)
1992+ = (forall a. EventM x (k a) -> Subscriber x (v a))
1790 -> IORef HeightBag
1993 -> IORef HeightBag
1791 -> DMap k s
1994 -> DMap k s
1793 -> EventM x ([EventSubscription x], DMap k s)
1996 -> EventM x ([EventSubscription x], DMap k s)
1998+type MergeGetSubscription x s = forall a. s a -> EventSubscription x
1795−type MergeInitFunc k x s
2000+type MergeInitFunc k v q x s
1796− = DMap k (Event x)
2001+ = DMap k q
1797− -> (forall a. EventM x (k a) -> Subscriber x a)
2002+ -> (forall a. EventM x (k a) -> Subscriber x (v a))
1798− -> EventM x (DMap k Identity, [Height], DMap k s)
2003+ -> EventM x (DMap k v, [Height], DMap k s)
1800type MergeDestroyFunc k s
2005type MergeDestroyFunc k s
1801 = DMap k s
2006 = DMap k s
1802 -> IO ()
2007 -> IO ()
1804−data Merge x k s = Merge
2009+data Merge x k v s = Merge
1805 { _merge_parentsRef :: {-# UNPACK #-} !(IORef (DMap k s))
2010 { _merge_parentsRef :: {-# UNPACK #-} !(IORef (DMap k s))
1806 , _merge_heightBagRef :: {-# UNPACK #-} !(IORef HeightBag)
2011 , _merge_heightBagRef :: {-# UNPACK #-} !(IORef HeightBag)
1807 , _merge_heightRef :: {-# UNPACK #-} !(IORef Height)
2012 , _merge_heightRef :: {-# UNPACK #-} !(IORef Height)
1808− , _merge_sub :: {-# UNPACK #-} !(Subscriber x (DMap k Identity))
2013+ , _merge_sub :: {-# UNPACK #-} !(Subscriber x (DMap k v))
1809− , _merge_accumRef :: {-# UNPACK #-} !(IORef (DMap k Identity))
2014+ , _merge_accumRef :: {-# UNPACK #-} !(IORef (DMap k v))
1812−invalidateMergeHeight :: Merge x k s -> IO ()
2017+invalidateMergeHeight :: Merge x k v s -> IO ()
1813invalidateMergeHeight m = invalidateMergeHeight' (_merge_heightRef m) (_merge_sub m)
2018invalidateMergeHeight m = invalidateMergeHeight' (_merge_heightRef m) (_merge_sub m)
1815invalidateMergeHeight' :: IORef Height -> Subscriber x a -> IO ()
2020invalidateMergeHeight' :: IORef Height -> Subscriber x a -> IO ()
1816invalidateMergeHeight' heightRef sub = do
2021invalidateMergeHeight' heightRef sub = do
1817 oldHeight <- readIORef heightRef
2022 oldHeight <- readIORef heightRef
1818− when (oldHeight /= invalidHeight) $ do -- If the height used to be valid, it must be invalid now; we should never have *more* heights than we have parents
2023+ -- If the height used to be valid, it must be invalid now; we should never have *more* heights than we have parents
2024+ when (oldHeight /= invalidHeight) $ do
1819 writeIORef heightRef $! invalidHeight
2025 writeIORef heightRef $! invalidHeight
1820 subscriberInvalidateHeight sub oldHeight
2026 subscriberInvalidateHeight sub oldHeight
1823−revalidateMergeHeight :: Merge x k s -> IO ()
2028+revalidateMergeHeight :: Merge x k v s -> IO ()
1824revalidateMergeHeight m = do
2029revalidateMergeHeight m = do
1825 currentHeight <- readIORef $ _merge_heightRef m
2030 currentHeight <- readIORef $ _merge_heightRef m
1826− when (currentHeight == invalidHeight) $ do -- revalidateMergeHeight may be called multiple times; perhaps the's a way to finesse it to avoid this check
2032+ -- revalidateMergeHeight may be called multiple times; perhaps the's a way to finesse it to avoid this check
2033+ when (currentHeight == invalidHeight) $ do
1827 heights <- readIORef $ _merge_heightBagRef m
2034 heights <- readIORef $ _merge_heightBagRef m
1828 parents <- readIORef $ _merge_parentsRef m
2035 parents <- readIORef $ _merge_parentsRef m
1829 -- When the number of heights in the bag reaches the number of parents, we should have a valid height
2036 -- When the number of heights in the bag reaches the number of parents, we should have a valid height
@@ -1831,44 +2038,53 @@ revalidateMergeHeight m = do
1831 LT -> return ()
2038 LT -> return ()
1832 EQ -> do
2039 EQ -> do
1833 let height = succHeight $ heightBagMax heights
2040 let height = succHeight $ heightBagMax heights
1834− when debugInvalidateHeight $ putStrLn $ "recalculateSubscriberHeight: height: " <> show height
2041+ traceInvalidateHeight $ "recalculateSubscriberHeight: height: " <> show height
1835 writeIORef (_merge_heightRef m) $! height
2042 writeIORef (_merge_heightRef m) $! height
1836 subscriberRecalculateHeight (_merge_sub m) height
2043 subscriberRecalculateHeight (_merge_sub m) height
1837 GT -> error $ "revalidateMergeHeight: more heights (" <> show (heightBagSize heights) <> ") than parents (" <> show (DMap.size parents) <> ") for Merge"
2044 GT -> error $ "revalidateMergeHeight: more heights (" <> show (heightBagSize heights) <> ") than parents (" <> show (DMap.size parents) <> ") for Merge"
1839−scheduleMergeSelf :: HasSpiderTimeline x => Merge x k s -> Height -> EventM x ()
2046+scheduleMergeSelf :: HasSpiderTimeline x => Merge x k v s -> Height -> EventM x ()
1840scheduleMergeSelf m height = scheduleMerge' height (_merge_heightRef m) $ do
2047scheduleMergeSelf m height = scheduleMerge' height (_merge_heightRef m) $ do
1841 vals <- liftIO $ readIORef $ _merge_accumRef m
2048 vals <- liftIO $ readIORef $ _merge_accumRef m
1842− liftIO $ writeIORef (_merge_accumRef m) $! DMap.empty -- Once we're done with this, we can clear it immediately, because if there's a cacheEvent in front of us, it'll handle subsequent subscribers, and if not, we won't get subsequent subscribers
2049+ -- Once we're done with this, we can clear it immediately, because if there's a cacheEvent in front of us,
2050+ -- it'll handle subsequent subscribers, and if not, we won't get subsequent subscribers
2051+ liftIO $ writeIORef (_merge_accumRef m) $! DMap.empty
1843 --TODO: Assert that m is not empty
2052 --TODO: Assert that m is not empty
1844 subscriberPropagate (_merge_sub m) vals
2053 subscriberPropagate (_merge_sub m) vals
2055+checkCycle :: HasSpiderTimeline x => EventSubscribed x -> EventM x ()
2056+checkCycle subscribed = liftIO $ do
2057+ height <- readIORef (eventSubscribedHeightRef subscribed)
2059+ -- currentHeight <- getCurrentHeight
2060+ -- when (height <= currentHeight) $ if height /= invalidHeight
2062+ -- myStack <- liftIO $ whoCreatedIORef undefined --TODO
2063+ -- error $ "Height (" ++ show height ++ ") is not greater than current height (" ++ show currentHeight ++ ")\n" ++ unlines (reverse myStack)
2065+ when (height == invalidHeight) $
2068+ nodesInvolvedInCycle <- walkInvalidHeightParents subscribed
2069+ stacks <- forM nodesInvolvedInCycle whoCreatedEventSubscribed
2070+ throwIO (EventLoopException stacks)
2072+ throwIO EventLoopException
1846−mergeSubscriber :: forall x k s a. (HasSpiderTimeline x, GCompare k) => Merge x k s -> EventM x (k a) -> Subscriber x a
2076+mergeSubscriber :: forall x k v s a. (HasSpiderTimeline x, GCompare k) => EventSubscribed x -> Merge x k v s -> EventM x (k a) -> Subscriber x (v a)
1847−mergeSubscriber m getKey = Subscriber
2077+mergeSubscriber subscribed m getKey = Subscriber
1848 { subscriberPropagate = \a -> do
2078 { subscriberPropagate = \a -> do
1849 oldM <- liftIO $ readIORef $ _merge_accumRef m
2079 oldM <- liftIO $ readIORef $ _merge_accumRef m
1850 k <- getKey
2080 k <- getKey
1851− let newM = DMap.insertWith (error $ "Same key fired multiple times for Merge") k (Identity a) oldM
2081+ let newM = DMap.insertWith (error "Same key fired multiple times for Merge") k a oldM
1852 tracePropagate (Proxy :: Proxy x) $ " DMap.size oldM = " <> show (DMap.size oldM) <> "; DMap.size newM = " <> show (DMap.size newM)
2082 tracePropagate (Proxy :: Proxy x) $ " DMap.size oldM = " <> show (DMap.size oldM) <> "; DMap.size newM = " <> show (DMap.size newM)
1853 liftIO $ writeIORef (_merge_accumRef m) $! newM
2083 liftIO $ writeIORef (_merge_accumRef m) $! newM
1854 when (DMap.null oldM) $ do -- Only schedule the firing once
2084 when (DMap.null oldM) $ do -- Only schedule the firing once
1855 height <- liftIO $ readIORef $ _merge_heightRef m
2085 height <- liftIO $ readIORef $ _merge_heightRef m
1856− --TODO: assertions about height
2086+ checkCycle subscribed
1857− currentHeight <- getCurrentHeight
2087+
1858− when (height <= currentHeight) $ do
1859− if height /= invalidHeight
1861− myStack <- liftIO $ whoCreatedIORef undefined --TODO
1862− error $ "Height (" ++ show height ++ ") is not greater than current height (" ++ show currentHeight ++ ")\n" ++ unlines (reverse myStack)
1865− nodesInvolvedInCycle <- walkInvalidHeightParents $ eventSubscribedMerge subscribed
1866− stacks <- forM nodesInvolvedInCycle $ \(Some.This es) -> whoCreatedEventSubscribed es
1867− let cycleInfo = ":\n" <> drawForest (listsToForest stacks)
1871− error $ "Causality loop found" <> cycleInfo
1872 scheduleMergeSelf m height
2088 scheduleMergeSelf m height
1873 , subscriberInvalidateHeight = \old -> do --TODO: When removing a parent doesn't actually change the height, maybe we can avoid invalidating
2089 , subscriberInvalidateHeight = \old -> do --TODO: When removing a parent doesn't actually change the height, maybe we can avoid invalidating
1874 modifyIORef' (_merge_heightBagRef m) $ heightBagRemove old
2090 modifyIORef' (_merge_heightBagRef m) $ heightBagRemove old
@@ -1879,30 +2095,45 @@ mergeSubscriber m getKey = Subscriber
1881--TODO: Be able to run as much of this as possible promptly
2097--TODO: Be able to run as much of this as possible promptly
1882−updateMerge :: (HasSpiderTimeline x, GCompare k) => Merge x k s -> MergeUpdateFunc k x p s -> p -> SomeMergeUpdate x
2098+updateMerge :: (HasSpiderTimeline x, GCompare k) => EventSubscribed x -> Merge x k v s -> MergeUpdateFunc k v x p s -> p -> SomeMergeUpdate x
1883−updateMerge m updateFunc p = SomeMergeUpdate updateMe (invalidateMergeHeight m) (revalidateMergeHeight m)
2099+updateMerge subscribed m updateFunc p = SomeMergeUpdate updateMe (invalidateMergeHeight m) (revalidateMergeHeight m)
1884 where updateMe = do
2100 where updateMe = do
1885 oldParents <- liftIO $ readIORef $ _merge_parentsRef m
2101 oldParents <- liftIO $ readIORef $ _merge_parentsRef m
1886− (subscriptionsToKill, newParents) <- updateFunc (mergeSubscriber m) (_merge_heightBagRef m) oldParents p
2102+ (subscriptionsToKill, newParents) <- updateFunc (mergeSubscriber subscribed m) (_merge_heightBagRef m) oldParents p
1887 liftIO $ writeIORef (_merge_parentsRef m) $! newParents
2103 liftIO $ writeIORef (_merge_parentsRef m) $! newParents
1888 return subscriptionsToKill
2104 return subscriptionsToKill
1890−{-# INLINE mergeCheap' #-}
2106+{-# INLINE mergeGCheap' #-}
2107+mergeGCheap' :: forall k v x p s q. (HasSpiderTimeline x, GCompare k, PatchTarget p ~ DMap k q)
1891−mergeCheap' :: forall k x p s. (HasSpiderTimeline x, GCompare k, PatchTarget p ~ DMap k (Event x)) => MergeInitFunc k x s -> MergeUpdateFunc k x p s -> MergeDestroyFunc k s -> Dynamic x p -> Event x (DMap k Identity)
2108+ => MergeGetSubscription x s -> MergeInitFunc k v q x s -> MergeUpdateFunc k v x p s -> MergeDestroyFunc k s -> DynamicS x p -> Event x (DMap k v)
1892−mergeCheap' getInitialSubscribers updateFunc destroy d = Event $ \sub -> do
2109+mergeGCheap' getParent getInitialSubscribers updateFunc destroy d = Event $ \sub -> do
1893 initialParents <- readBehaviorUntracked $ dynamicCurrent d
2110 initialParents <- readBehaviorUntracked $ dynamicCurrent d
1894 accumRef <- liftIO $ newIORef $ error "merge: accumRef not yet initialized"
2111 accumRef <- liftIO $ newIORef $ error "merge: accumRef not yet initialized"
1895 heightRef <- liftIO $ newIORef $ error "merge: heightRef not yet initialized"
2112 heightRef <- liftIO $ newIORef $ error "merge: heightRef not yet initialized"
1896 heightBagRef <- liftIO $ newIORef $ error "merge: heightBagRef not yet initialized"
2113 heightBagRef <- liftIO $ newIORef $ error "merge: heightBagRef not yet initialized"
1897 parentsRef :: IORef (DMap k s) <- liftIO $ newIORef $ error "merge: parentsRef not yet initialized"
2114 parentsRef :: IORef (DMap k s) <- liftIO $ newIORef $ error "merge: parentsRef not yet initialized"
2115+ changeSubdRef <- liftIO $ newIORef $ error "getMergeSubscribed: changeSubdRef not yet initialized"
2117+ let subscribed = EventSubscribed
2118+ { eventSubscribedHeightRef = heightRef
2119+ , eventSubscribedRetained = toAny (parentsRef, changeSubdRef)
2121+ , eventSubscribedGetParents = do
2122+ let getParent' (_ :=> v) = _eventSubscription_subscribed (getParent v)
2123+ fmap getParent' . DMap.toList <$> readIORef parentsRef
2124+ , eventSubscribedHasOwnHeightRef = False
2125+ , eventSubscribedWhoCreated = whoCreatedIORef heightRef
1898− let m = Merge
2129+ m = Merge
1899 { _merge_parentsRef = parentsRef
2130 { _merge_parentsRef = parentsRef
1900 , _merge_heightBagRef = heightBagRef
2131 , _merge_heightBagRef = heightBagRef
1901 , _merge_heightRef = heightRef
2132 , _merge_heightRef = heightRef
1902 , _merge_sub = sub
2133 , _merge_sub = sub
1903 , _merge_accumRef = accumRef
2134 , _merge_accumRef = accumRef
1905− (dm, heights, initialParentState) <- getInitialSubscribers initialParents $ mergeSubscriber m
2136+ (dm, heights, initialParentState) <- getInitialSubscribers initialParents $ mergeSubscriber subscribed m
1906 let myHeightBag = heightBagFromList $ filter (/= invalidHeight) heights
2137 let myHeightBag = heightBagFromList $ filter (/= invalidHeight) heights
1907 myHeight = if invalidHeight `elem` heights
2138 myHeight = if invalidHeight `elem` heights
1908 then invalidHeight
2139 then invalidHeight
@@ -1911,50 +2142,57 @@ mergeCheap' getInitialSubscribers updateFunc destroy d = Event $ \sub -> do
1911 let (occ, accum) = if currentHeight >= myHeight -- If we should have fired by now
2142 let (occ, accum) = if currentHeight >= myHeight -- If we should have fired by now
1912 then (if DMap.null dm then Nothing else Just dm, DMap.empty)
2143 then (if DMap.null dm then Nothing else Just dm, DMap.empty)
1913 else (Nothing, dm)
2144 else (Nothing, dm)
1914− unless (DMap.null accum) $ do
1915− scheduleMergeSelf m myHeight
2145+ unless (DMap.null accum) $ scheduleMergeSelf m myHeight
1916 liftIO $ writeIORef accumRef $! accum
2146 liftIO $ writeIORef accumRef $! accum
1917 liftIO $ writeIORef heightRef $! myHeight
2147 liftIO $ writeIORef heightRef $! myHeight
1918 liftIO $ writeIORef heightBagRef $! myHeightBag
2148 liftIO $ writeIORef heightBagRef $! myHeightBag
1919− changeSubdRef <- liftIO $ newIORef $ error "getMergeSubscribed: changeSubdRef not yet initialized"
1920 liftIO $ writeIORef parentsRef $! initialParentState
2149 liftIO $ writeIORef parentsRef $! initialParentState
1921 defer $ SomeMergeInit $ do
2150 defer $ SomeMergeInit $ do
1922− let s = Subscriber
2151+ let changeSubscriber = Subscriber
1923 { subscriberPropagate = \a -> {-# SCC "traverseMergeChange" #-} do
2152 { subscriberPropagate = \a -> {-# SCC "traverseMergeChange" #-} do
1924− tracePropagate (Proxy :: Proxy x) $ "SubscriberMerge/Change"
2153+ tracePropagate (Proxy :: Proxy x) "SubscriberMerge/Change"
1925− defer $ updateMerge m updateFunc a
2154+ defer $ updateMerge subscribed m updateFunc a
1926 , subscriberInvalidateHeight = \_ -> return ()
2155 , subscriberInvalidateHeight = \_ -> return ()
1927 , subscriberRecalculateHeight = \_ -> return ()
2156 , subscriberRecalculateHeight = \_ -> return ()
1929− (changeSubscription, change) <- subscribeAndRead (dynamicUpdated d) s
2158+ (changeSubscription, change) <- subscribeAndRead (dynamicUpdated d) changeSubscriber
1930− forM_ change $ \c -> defer $ updateMerge m updateFunc c
2159+ forM_ change $ \c -> defer $ updateMerge subscribed m updateFunc c
1931 -- We explicitly hold on to the unsubscribe function from subscribing to the update event.
2160 -- We explicitly hold on to the unsubscribe function from subscribing to the update event.
1932 -- If we don't do this, there are certain cases where mergeCheap will fail to properly retain
2161 -- If we don't do this, there are certain cases where mergeCheap will fail to properly retain
1933 -- its subscription.
2162 -- its subscription.
1934− liftIO $ writeIORef changeSubdRef (s, changeSubscription)
2163+ liftIO $ writeIORef changeSubdRef (changeSubscriber, changeSubscription)
1935 let unsubscribeAll = destroy =<< readIORef parentsRef
2164 let unsubscribeAll = destroy =<< readIORef parentsRef
1936− return ( EventSubscription unsubscribeAll $ EventSubscribed heightRef $ toAny (parentsRef, changeSubdRef)
2166+ return (EventSubscription unsubscribeAll subscribed, occ)
1940−mergeInt :: forall x a. (HasSpiderTimeline x) => Dynamic x (PatchIntMap (Event x a)) -> Event x (IntMap a)
2169+mergeInt :: forall x a. (HasSpiderTimeline x) => DynamicS x (PatchIntMap (Event x a)) -> Event x (IntMap a)
1941mergeInt = cacheEvent . mergeIntCheap
2170mergeInt = cacheEvent . mergeIntCheap
1943{-# INLINABLE mergeIntCheap #-}
2172{-# INLINABLE mergeIntCheap #-}
1944−mergeIntCheap :: forall x a. (HasSpiderTimeline x) => Dynamic x (PatchIntMap (Event x a)) -> Event x (IntMap a)
2173+mergeIntCheap :: forall x a. (HasSpiderTimeline x) => DynamicS x (PatchIntMap (Event x a)) -> Event x (IntMap a)
1945mergeIntCheap d = Event $ \sub -> do
2174mergeIntCheap d = Event $ \sub -> do
1946 initialParents <- readBehaviorUntracked $ dynamicCurrent d
2175 initialParents <- readBehaviorUntracked $ dynamicCurrent d
1947 accum <- liftIO $ FastMutableIntMap.newEmpty
2176 accum <- liftIO $ FastMutableIntMap.newEmpty
1948 heightRef <- liftIO $ newIORef zeroHeight
2177 heightRef <- liftIO $ newIORef zeroHeight
1949 heightBagRef <- liftIO $ newIORef heightBagEmpty
2178 heightBagRef <- liftIO $ newIORef heightBagEmpty
1950 parents <- liftIO $ FastMutableIntMap.newEmpty
2179 parents <- liftIO $ FastMutableIntMap.newEmpty
2180+ changeSubdRef <- liftIO $ newIORef $ error "getMergeSubscribed: changeSubdRef not yet initialized"
2181+ let subscribed = EventSubscribed
2182+ { eventSubscribedHeightRef = heightRef
2183+ , eventSubscribedRetained = toAny (parents, changeSubdRef)
2185+ , eventSubscribedGetParents = fmap (_eventSubscription_subscribed . snd) <$> FastMutableIntMap.toList parents
2186+ , eventSubscribedHasOwnHeightRef = False
2187+ , eventSubscribedWhoCreated = whoCreatedIORef heightRef
1951 let scheduleSelf = do
2190 let scheduleSelf = do
1952 height <- liftIO $ readIORef $ heightRef
2191 height <- liftIO $ readIORef $ heightRef
1953 scheduleMerge' height heightRef $ do
2192 scheduleMerge' height heightRef $ do
1954 vals <- liftIO $ FastMutableIntMap.getFrozenAndClear accum
2193 vals <- liftIO $ FastMutableIntMap.getFrozenAndClear accum
1955 subscriberPropagate sub vals
2194 subscriberPropagate sub vals
1956− invalidateMyHeight = do
1957− invalidateMergeHeight' heightRef sub
2195+ invalidateMyHeight = invalidateMergeHeight' heightRef sub
1958 recalculateMyHeight = do
2196 recalculateMyHeight = do
1959 currentHeight <- readIORef heightRef
2197 currentHeight <- readIORef heightRef
1960 when (currentHeight == invalidHeight) $ do --TODO: This will almost always be true; can we get rid of this check and just proceed to the next one always?
2198 when (currentHeight == invalidHeight) $ do --TODO: This will almost always be true; can we get rid of this check and just proceed to the next one always?
@@ -1964,12 +2202,14 @@ mergeIntCheap d = Event $ \sub -> do
1964 LT -> return ()
2202 LT -> return ()
1965 EQ -> do
2203 EQ -> do
1966 let height = succHeight $ heightBagMax heights
2204 let height = succHeight $ heightBagMax heights
1967− when debugInvalidateHeight $ putStrLn $ "recalculateSubscriberHeight: height: " <> show height
2205+ traceInvalidateHeight $ "recalculateSubscriberHeight: height: " <> show height
1968 writeIORef heightRef $! height
2206 writeIORef heightRef $! height
1969 subscriberRecalculateHeight sub height
2207 subscriberRecalculateHeight sub height
1970 GT -> error $ "revalidateMergeHeight: more heights (" <> show (heightBagSize heights) <> ") than parents (" <> show numParents <> ") for Merge"
2208 GT -> error $ "revalidateMergeHeight: more heights (" <> show (heightBagSize heights) <> ") than parents (" <> show numParents <> ") for Merge"
1971 mySubscriber k = Subscriber
2209 mySubscriber k = Subscriber
1972 { subscriberPropagate = \a -> do
2210 { subscriberPropagate = \a -> do
2211+ checkCycle subscribed
1973 wasEmpty <- liftIO $ FastMutableIntMap.isEmpty accum
2213 wasEmpty <- liftIO $ FastMutableIntMap.isEmpty accum
1974 liftIO $ FastMutableIntMap.insert accum k a
2214 liftIO $ FastMutableIntMap.insert accum k a
1975 when wasEmpty scheduleSelf
2215 when wasEmpty scheduleSelf
@@ -2003,7 +2243,6 @@ mergeIntCheap d = Event $ \sub -> do
2003 else liftIO $ Just <$> FastMutableIntMap.getFrozenAndClear accum
2243 else liftIO $ Just <$> FastMutableIntMap.getFrozenAndClear accum
2004 else do when (not isEmpty) scheduleSelf -- We have things accumulated, but we shouldn't have fired them yet
2244 else do when (not isEmpty) scheduleSelf -- We have things accumulated, but we shouldn't have fired them yet
2005 return Nothing
2245 return Nothing
2006− changeSubdRef <- liftIO $ newIORef $ error "getMergeSubscribed: changeSubdRef not yet initialized"
2007 defer $ SomeMergeInit $ do
2246 defer $ SomeMergeInit $ do
2008 let updateMe a = SomeMergeUpdate u invalidateMyHeight recalculateMyHeight
2247 let updateMe a = SomeMergeUpdate u invalidateMyHeight recalculateMyHeight
@@ -2017,35 +2256,39 @@ mergeIntCheap d = Event $ \sub -> do
2017 oldParents <- liftIO $ FastMutableIntMap.applyPatch parents newSubscriptions
2256 oldParents <- liftIO $ FastMutableIntMap.applyPatch parents newSubscriptions
2018 liftIO $ for_ oldParents $ \oldParent -> do
2257 liftIO $ for_ oldParents $ \oldParent -> do
2019 oldParentHeight <- getEventSubscribedHeight $ _eventSubscription_subscribed oldParent
2258 oldParentHeight <- getEventSubscribedHeight $ _eventSubscription_subscribed oldParent
2260+ print ("updateMe", oldParentHeight)
2020 modifyIORef' heightBagRef $ heightBagRemove oldParentHeight
2261 modifyIORef' heightBagRef $ heightBagRemove oldParentHeight
2021 return $ IntMap.elems oldParents
2262 return $ IntMap.elems oldParents
2022− let s = Subscriber
2263+ let changeSubscriber = Subscriber
2023 { subscriberPropagate = \a -> {-# SCC "traverseMergeChange" #-} do
2264 { subscriberPropagate = \a -> {-# SCC "traverseMergeChange" #-} do
2024 tracePropagate (Proxy :: Proxy x) $ "SubscriberMergeInt/Change"
2265 tracePropagate (Proxy :: Proxy x) $ "SubscriberMergeInt/Change"
2025 defer $ updateMe a
2266 defer $ updateMe a
2026 , subscriberInvalidateHeight = \_ -> return ()
2267 , subscriberInvalidateHeight = \_ -> return ()
2027 , subscriberRecalculateHeight = \_ -> return ()
2268 , subscriberRecalculateHeight = \_ -> return ()
2029− (changeSubscription, change) <- subscribeAndRead (dynamicUpdated d) s
2270+ (changeSubscription, change) <- subscribeAndRead (dynamicUpdated d) changeSubscriber
2030 forM_ change $ \c -> defer $ updateMe c
2271 forM_ change $ \c -> defer $ updateMe c
2031 -- We explicitly hold on to the unsubscribe function from subscribing to the update event.
2272 -- We explicitly hold on to the unsubscribe function from subscribing to the update event.
2032 -- If we don't do this, there are certain cases where mergeCheap will fail to properly retain
2273 -- If we don't do this, there are certain cases where mergeCheap will fail to properly retain
2033 -- its subscription.
2274 -- its subscription.
2034− liftIO $ writeIORef changeSubdRef (s, changeSubscription)
2275+ liftIO $ writeIORef changeSubdRef (changeSubscriber, changeSubscription)
2035 let unsubscribeAll = traverse_ unsubscribe =<< FastMutableIntMap.getFrozenAndClear parents
2276 let unsubscribeAll = traverse_ unsubscribe =<< FastMutableIntMap.getFrozenAndClear parents
2036− return ( EventSubscription unsubscribeAll $ EventSubscribed heightRef $ toAny (parents, changeSubdRef)
2279+ return (EventSubscription unsubscribeAll subscribed, occ)
2040newtype EventSelector x k = EventSelector { select :: forall a. k a -> Event x a }
2281newtype EventSelector x k = EventSelector { select :: forall a. k a -> Event x a }
2282+newtype EventSelectorG x k v = EventSelectorG { selectG :: forall a. k a -> Event x (v a) }
2042−fan :: (HasSpiderTimeline x, GCompare k) => Event x (DMap k Identity) -> EventSelector x k
2284+fanG :: (HasSpiderTimeline x, GCompare k) => Event x (DMap k v) -> EventSelectorG x k v
2043−fan e =
2285+fanG e = unsafePerformIO $ do
2286+ ref <- newIORef Nothing
2044 let f = Fan
2287 let f = Fan
2045 { fanParent = e
2288 { fanParent = e
2046− , fanSubscribed = unsafeNewIORef e Nothing
2289+ , fanSubscribed = ref
2048− in EventSelector $ \k -> eventFan k f
2291+ pure $ EventSelectorG $ \k -> eventFan k f
2050runHoldInits :: HasSpiderTimeline x => IORef [SomeHoldInit x] -> IORef [SomeDynInit x] -> IORef [SomeMergeInit x] -> EventM x ()
2293runHoldInits :: HasSpiderTimeline x => IORef [SomeHoldInit x] -> IORef [SomeDynInit x] -> IORef [SomeMergeInit x] -> EventM x ()
2051runHoldInits holdInitRef dynInitRef mergeInitRef = do
2294runHoldInits holdInitRef dynInitRef mergeInitRef = do
@@ -2098,37 +2341,37 @@ clearEventEnv (EventEnv toAssignRef holdInitRef dynInitRef mergeUpdateRef mergeI
2099-- | Run an event action outside of a frame
2342-- | Run an event action outside of a frame
2100runFrame :: forall x a. HasSpiderTimeline x => EventM x a -> SpiderHost x a --TODO: This function also needs to hold the mutex
2343runFrame :: forall x a. HasSpiderTimeline x => EventM x a -> SpiderHost x a --TODO: This function also needs to hold the mutex
2101−runFrame a = SpiderHost $ ask >>= \_ -> lift $ do
2344+runFrame a = SpiderHost $ do
2102− let env = _spiderTimeline_eventEnv (spiderTimeline :: SpiderTimelineEnv x)
2345+ let env = _spiderTimeline_eventEnv $ unSTE (spiderTimeline :: SpiderTimelineEnv x)
2103 let go = do
2346 let go = do
2104 result <- a
2347 result <- a
2105 runHoldInits (eventEnvHoldInits env) (eventEnvDynInits env) (eventEnvMergeInits env) -- This must happen before doing the assignments, in case subscribing a Hold causes existing Holds to be read by the newly-propagated events
2348 runHoldInits (eventEnvHoldInits env) (eventEnvDynInits env) (eventEnvMergeInits env) -- This must happen before doing the assignments, in case subscribing a Hold causes existing Holds to be read by the newly-propagated events
2106 return result
2349 return result
2107 result <- runEventM go
2350 result <- runEventM go
2108 toClear <- readIORef $ eventEnvClears env
2351 toClear <- readIORef $ eventEnvClears env
2109− forM_ toClear $ \(SomeClear ref) -> {-# SCC "clear" #-} writeIORef ref Nothing
2352+ forM_ toClear $ \(Some (Clear ref)) -> {-# SCC "clear" #-} writeIORef ref Nothing
2110 toClearInt <- readIORef $ eventEnvIntClears env
2353 toClearInt <- readIORef $ eventEnvIntClears env
2111− forM_ toClearInt $ \(SomeIntClear ref) -> {-# SCC "intClear" #-} writeIORef ref $! IntMap.empty
2354+ forM_ toClearInt $ \(Some (IntClear ref)) -> {-# SCC "intClear" #-} writeIORef ref $! IntMap.empty
2112 toClearRoot <- readIORef $ eventEnvRootClears env
2355 toClearRoot <- readIORef $ eventEnvRootClears env
2113− forM_ toClearRoot $ \(SomeRootClear ref) -> {-# SCC "rootClear" #-} writeIORef ref $! DMap.empty
2356+ forM_ toClearRoot $ \(Some (RootClear ref)) -> {-# SCC "rootClear" #-} writeIORef ref $! DMap.empty
2114 toAssign <- readIORef $ eventEnvAssignments env
2357 toAssign <- readIORef $ eventEnvAssignments env
2115 toReconnectRef <- newIORef []
2358 toReconnectRef <- newIORef []
2116 coincidenceInfos <- readIORef $ eventEnvResetCoincidences env
2359 coincidenceInfos <- readIORef $ eventEnvResetCoincidences env
2117 forM_ toAssign $ \(SomeAssignment vRef iRef v) -> {-# SCC "assignment" #-} do
2360 forM_ toAssign $ \(SomeAssignment vRef iRef v) -> {-# SCC "assignment" #-} do
2118 writeIORef vRef v
2361 writeIORef vRef v
2119− when debugInvalidate $ putStrLn $ "Invalidating Hold"
2362+ traceInvalidate $ "Invalidating Hold"
2120 writeIORef iRef =<< evaluate =<< invalidate toReconnectRef =<< readIORef iRef
2363 writeIORef iRef =<< evaluate =<< invalidate toReconnectRef =<< readIORef iRef
2121 mergeUpdates <- readIORef $ eventEnvMergeUpdates env
2364 mergeUpdates <- readIORef $ eventEnvMergeUpdates env
2122 writeIORef (eventEnvMergeUpdates env) []
2365 writeIORef (eventEnvMergeUpdates env) []
2123− when debugPropagate $ putStrLn "Updating merges"
2366+ tracePropagate (Proxy::Proxy x) $ "Updating merges"
2124 mergeSubscriptionsToKill <- runEventM $ concat <$> mapM _someMergeUpdate_update mergeUpdates
2367 mergeSubscriptionsToKill <- runEventM $ concat <$> mapM _someMergeUpdate_update mergeUpdates
2125− when debugPropagate $ putStrLn "Updating merges done"
2368+ tracePropagate (Proxy::Proxy x) $ "Updating merges done"
2126 toReconnect <- readIORef toReconnectRef
2369 toReconnect <- readIORef toReconnectRef
2127 clearEventEnv env
2370 clearEventEnv env
2128 switchSubscriptionsToKill <- forM toReconnect $ \(SomeSwitchSubscribed subscribed) -> {-# SCC "switchSubscribed" #-} do
2371 switchSubscriptionsToKill <- forM toReconnect $ \(SomeSwitchSubscribed subscribed) -> {-# SCC "switchSubscribed" #-} do
2129 oldSubscription <- readIORef $ switchSubscribedCurrentParent subscribed
2372 oldSubscription <- readIORef $ switchSubscribedCurrentParent subscribed
2130 wi <- readIORef $ switchSubscribedOwnWeakInvalidator subscribed
2373 wi <- readIORef $ switchSubscribedOwnWeakInvalidator subscribed
2131− when debugInvalidate $ putStrLn $ "Finalizing invalidator for Switch" <> showNodeId subscribed
2374+ traceInvalidate $ "Finalizing invalidator for Switch" <> showNodeId subscribed
2132 finalize wi
2375 finalize wi
2133 i <- evaluate $ switchSubscribedOwnInvalidator subscribed
2376 i <- evaluate $ switchSubscribedOwnInvalidator subscribed
2134 wi' <- mkWeakPtrWithDebug i "wi'"
2377 wi' <- mkWeakPtrWithDebug i "wi'"
@@ -2139,10 +2382,10 @@ runFrame a = SpiderHost $ ask >>= \_ -> lift $ do
2139 runEventM $ runHoldInits (eventEnvHoldInits env) (eventEnvDynInits env) (eventEnvMergeInits env) --TODO: Is this actually OK? It seems like it should be, since we know that no events are firing at this point, but it still seems inelegant
2382 runEventM $ runHoldInits (eventEnvHoldInits env) (eventEnvDynInits env) (eventEnvMergeInits env) --TODO: Is this actually OK? It seems like it should be, since we know that no events are firing at this point, but it still seems inelegant
2140 --TODO: Make sure we touch the pieces of the SwitchSubscribed at the appropriate times
2383 --TODO: Make sure we touch the pieces of the SwitchSubscribed at the appropriate times
2141 sub <- newSubscriberSwitch subscribed
2384 sub <- newSubscriberSwitch subscribed
2142− subscription <- runReaderT (unSpiderHost (runFrame ({-# SCC "subscribeSwitch" #-} subscribe e sub))) spiderTimeline --TODO: Assert that the event isn't firing --TODO: This should not loop because none of the events should be firing, but still, it is inefficient
2385+ subscription <- unSpiderHost $ runFrame $ {-# SCC "subscribeSwitch" #-} subscribe e sub --TODO: Assert that the event isn't firing --TODO: This should not loop because none of the events should be firing, but still, it is inefficient
2144 stackTrace <- liftIO $ fmap renderStack $ ccsToStrings =<< (getCCSOf $! switchSubscribedParent subscribed)
2387 stackTrace <- liftIO $ fmap renderStack $ ccsToStrings =<< (getCCSOf $! switchSubscribedParent subscribed)
2145− liftIO $ putStrLn $ (++stackTrace) $ "subd' subscribed to " ++ case e of
2388+ liftIO $ debugStrLn $ (++stackTrace) $ "subd' subscribed to " ++ case e of
2146 EventRoot _ -> "EventRoot"
2389 EventRoot _ -> "EventRoot"
2147 EventNever -> "EventNever"
2390 EventNever -> "EventNever"
2148 _ -> "something else"
2391 _ -> "something else"
@@ -2157,7 +2400,7 @@ runFrame a = SpiderHost $ ask >>= \_ -> lift $ do
2157 myHeight <- readIORef $ switchSubscribedHeight subscribed
2400 myHeight <- readIORef $ switchSubscribedHeight subscribed
2158 when (parentHeight /= myHeight) $ do
2401 when (parentHeight /= myHeight) $ do
2159 writeIORef (switchSubscribedHeight subscribed) $! invalidHeight
2402 writeIORef (switchSubscribedHeight subscribed) $! invalidHeight
2160− WeakBag.traverse (switchSubscribedSubscribers subscribed) $ invalidateSubscriberHeight myHeight
2403+ WeakBag.traverse_ (switchSubscribedSubscribers subscribed) $ invalidateSubscriberHeight myHeight
2161 mapM_ _someMergeUpdate_invalidateHeight mergeUpdates --TODO: In addition to when the patch is completely empty, we should also not run this if it has some Nothing values, but none of them have actually had any effect; potentially, we could even check for Just values with no effect (e.g. by comparing their IORefs and ignoring them if they are unchanged); actually, we could just check if the new height is different
2404 mapM_ _someMergeUpdate_invalidateHeight mergeUpdates --TODO: In addition to when the patch is completely empty, we should also not run this if it has some Nothing values, but none of them have actually had any effect; potentially, we could even check for Just values with no effect (e.g. by comparing their IORefs and ignoring them if they are unchanged); actually, we could just check if the new height is different
2162 forM_ coincidenceInfos $ \(SomeResetCoincidence subscription mcs) -> do
2405 forM_ coincidenceInfos $ \(SomeResetCoincidence subscription mcs) -> do
2163 unsubscribe subscription
2406 unsubscribe subscription
@@ -2198,7 +2441,7 @@ invalidateCoincidenceHeight subscribed = do
2198 oldHeight <- readIORef $ coincidenceSubscribedHeight subscribed
2441 oldHeight <- readIORef $ coincidenceSubscribedHeight subscribed
2199 when (oldHeight /= invalidHeight) $ do
2442 when (oldHeight /= invalidHeight) $ do
2200 writeIORef (coincidenceSubscribedHeight subscribed) $! invalidHeight
2443 writeIORef (coincidenceSubscribedHeight subscribed) $! invalidHeight
2201− WeakBag.traverse (coincidenceSubscribedSubscribers subscribed) $ invalidateSubscriberHeight oldHeight
2444+ WeakBag.traverse_ (coincidenceSubscribedSubscribers subscribed) $ invalidateSubscriberHeight oldHeight
2203updateSwitchHeight :: Height -> SwitchSubscribed x a -> IO ()
2446updateSwitchHeight :: Height -> SwitchSubscribed x a -> IO ()
2204updateSwitchHeight new subscribed = do
2447updateSwitchHeight new subscribed = do
@@ -2206,7 +2449,7 @@ updateSwitchHeight new subscribed = do
2206 when (oldHeight == invalidHeight) $ do --TODO: This 'when' should probably be an assertion
2449 when (oldHeight == invalidHeight) $ do --TODO: This 'when' should probably be an assertion
2207 when (new /= invalidHeight) $ do --TODO: This 'when' should probably be an assertion
2450 when (new /= invalidHeight) $ do --TODO: This 'when' should probably be an assertion
2208 writeIORef (switchSubscribedHeight subscribed) $! new
2451 writeIORef (switchSubscribedHeight subscribed) $! new
2209− WeakBag.traverse (switchSubscribedSubscribers subscribed) $ recalculateSubscriberHeight new
2452+ WeakBag.traverse_ (switchSubscribedSubscribers subscribed) $ recalculateSubscriberHeight new
2211recalculateCoincidenceHeight :: CoincidenceSubscribed x a -> IO ()
2454recalculateCoincidenceHeight :: CoincidenceSubscribed x a -> IO ()
2212recalculateCoincidenceHeight subscribed = do
2455recalculateCoincidenceHeight subscribed = do
@@ -2215,7 +2458,7 @@ recalculateCoincidenceHeight subscribed = do
2215 height <- calculateCoincidenceHeight subscribed
2458 height <- calculateCoincidenceHeight subscribed
2216 when (height /= invalidHeight) $ do
2459 when (height /= invalidHeight) $ do
2217 writeIORef (coincidenceSubscribedHeight subscribed) $! height
2460 writeIORef (coincidenceSubscribedHeight subscribed) $! height
2218− WeakBag.traverse (coincidenceSubscribedSubscribers subscribed) $ recalculateSubscriberHeight height
2461+ WeakBag.traverse_ (coincidenceSubscribedSubscribers subscribed) $ recalculateSubscriberHeight height
2220calculateSwitchHeight :: SwitchSubscribed x a -> IO Height
2463calculateSwitchHeight :: SwitchSubscribed x a -> IO Height
2221calculateSwitchHeight subscribed = getEventSubscribedHeight . _eventSubscription_subscribed =<< readIORef (switchSubscribedCurrentParent subscribed)
2464calculateSwitchHeight subscribed = getEventSubscribedHeight . _eventSubscription_subscribed =<< readIORef (switchSubscribedCurrentParent subscribed)
@@ -2254,13 +2497,218 @@ invalidate toReconnectRef wis = do
2254-- Reflex integration
2497-- Reflex integration
2255--------------------------------------------------------------------------------
2498--------------------------------------------------------------------------------
2257−#ifndef SPECIALIZE_TO_SPIDERTIMELINE_GLOBAL
2500+-- | Designates the default, global Spider timeline
2258−-- When we're specializing, we include this from Reflex.Class instead, because
2501+data SpiderTimeline x
2259−-- it needs access to these types; when we're not, we want them here, so our
2502+type role SpiderTimeline nominal
2260−-- instance isn't an orphan instance.
2503+
2261−#include "SpiderTimeline.include.hs"
2504+-- | The default, global Spider environment
2262−#include "SpiderTimelineHost.include.hs"
2505+type Spider = SpiderTimeline Global
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
2265unsafeNewSpiderTimelineEnv :: forall x. IO (SpiderTimelineEnv x)
2713unsafeNewSpiderTimelineEnv :: forall x. IO (SpiderTimelineEnv x)
2266unsafeNewSpiderTimelineEnv = do
2714unsafeNewSpiderTimelineEnv = do
@@ -2269,7 +2717,7 @@ unsafeNewSpiderTimelineEnv = do
2269#ifdef DEBUG
2717#ifdef DEBUG
2270 depthRef <- newIORef 0
2718 depthRef <- newIORef 0
2272− return $ SpiderTimelineEnv
2720+ return $ STE $ SpiderTimelineEnv
2273 { _spiderTimeline_lock = lock
2721 { _spiderTimeline_lock = lock
2274 , _spiderTimeline_eventEnv = env
2722 , _spiderTimeline_eventEnv = env
2275#ifdef DEBUG
2723#ifdef DEBUG
@@ -2277,43 +2725,40 @@ unsafeNewSpiderTimelineEnv = do
2280−#ifndef SPECIALIZE_TO_SPIDERTIMELINE_GLOBAL
2281-- | Create a new SpiderTimelineEnv
2728-- | Create a new SpiderTimelineEnv
2282newSpiderTimeline :: IO (Some SpiderTimelineEnv)
2729newSpiderTimeline :: IO (Some SpiderTimelineEnv)
2283−newSpiderTimeline = withSpiderTimeline (pure . Some.This)
2730+newSpiderTimeline = withSpiderTimeline (pure . Some)
2285−data LocalSpiderTimeline x s
2732+data LocalSpiderTimeline (x :: Type) s
2287instance Reifies s (SpiderTimelineEnv x) =>
2734instance Reifies s (SpiderTimelineEnv x) =>
2288 HasSpiderTimeline (LocalSpiderTimeline x s) where
2735 HasSpiderTimeline (LocalSpiderTimeline x s) where
2289− spiderTimeline = localSpiderTimeline (Proxy :: Proxy s) $ reflect (Proxy :: Proxy s)
2736+ spiderTimeline = localSpiderTimeline Proxy $ reflect (Proxy :: Proxy s)
2291localSpiderTimeline
2738localSpiderTimeline
2292− :: Proxy s
2739+ :: proxy s
2293 -> SpiderTimelineEnv x
2740 -> SpiderTimelineEnv x
2294 -> SpiderTimelineEnv (LocalSpiderTimeline x s)
2741 -> SpiderTimelineEnv (LocalSpiderTimeline x s)
2295−localSpiderTimeline _ = unsafeCoerce
2742+localSpiderTimeline _ = coerce
2297-- | Pass a new timeline to the given function.
2744-- | Pass a new timeline to the given function.
2298withSpiderTimeline :: (forall x. HasSpiderTimeline x => SpiderTimelineEnv x -> IO r) -> IO r
2745withSpiderTimeline :: (forall x. HasSpiderTimeline x => SpiderTimelineEnv x -> IO r) -> IO r
2299withSpiderTimeline k = do
2746withSpiderTimeline k = do
2300 env <- unsafeNewSpiderTimelineEnv
2747 env <- unsafeNewSpiderTimelineEnv
2301 reify env $ \s -> k $ localSpiderTimeline s env
2748 reify env $ \s -> k $ localSpiderTimeline s env
2304−newtype SpiderPullM x a = SpiderPullM (BehaviorM x a) deriving (Functor, Applicative, Monad, MonadIO, MonadFix)
2750+newtype SpiderPullM (x :: Type) a = SpiderPullM (BehaviorM x a) deriving (Functor, Applicative, Monad, MonadIO, MonadFix)
2306type ComputeM = EventM
2752type ComputeM = EventM
2308−newtype SpiderPushM x a = SpiderPushM (ComputeM x a) deriving (Functor, Applicative, Monad, MonadIO, MonadFix)
2754+newtype SpiderPushM (x :: Type) a = SpiderPushM (ComputeM x a) deriving (Functor, Applicative, Monad, MonadIO, MonadFix)
2310−#ifndef SPECIALIZE_TO_SPIDERTIMELINE_GLOBAL
2311instance HasSpiderTimeline x => R.Reflex (SpiderTimeline x) where
2756instance HasSpiderTimeline x => R.Reflex (SpiderTimeline x) where
2312 {-# SPECIALIZE instance R.Reflex (SpiderTimeline Global) #-}
2757 {-# SPECIALIZE instance R.Reflex (SpiderTimeline Global) #-}
2313 newtype Behavior (SpiderTimeline x) a = SpiderBehavior { unSpiderBehavior :: Behavior x a }
2758 newtype Behavior (SpiderTimeline x) a = SpiderBehavior { unSpiderBehavior :: Behavior x a }
2314 newtype Event (SpiderTimeline x) a = SpiderEvent { unSpiderEvent :: Event x a }
2759 newtype Event (SpiderTimeline x) a = SpiderEvent { unSpiderEvent :: Event x a }
2315− newtype Dynamic (SpiderTimeline x) a = SpiderDynamic { unSpiderDynamic :: Dynamic x (Identity a) } -- deriving (Functor, Applicative, Monad)
2760+ newtype Dynamic (SpiderTimeline x) a = SpiderDynamic { unSpiderDynamic :: DynamicS x (Identity a) } -- deriving (Functor, Applicative, Monad)
2316− newtype Incremental (SpiderTimeline x) p = SpiderIncremental { unSpiderIncremental :: Dynamic x p }
2761+ newtype Incremental (SpiderTimeline x) p = SpiderIncremental { unSpiderIncremental :: DynamicS x p }
2317 type PullM (SpiderTimeline x) = SpiderPullM x
2762 type PullM (SpiderTimeline x) = SpiderPullM x
2318 type PushM (SpiderTimeline x) = SpiderPushM x
2763 type PushM (SpiderTimeline x) = SpiderPushM x
2319 {-# INLINABLE never #-}
2764 {-# INLINABLE never #-}
@@ -2326,10 +2771,15 @@ instance HasSpiderTimeline x => R.Reflex (SpiderTimeline x) where
2326 pushCheap f = SpiderEvent . pushCheap (coerce f) . unSpiderEvent
2771 pushCheap f = SpiderEvent . pushCheap (coerce f) . unSpiderEvent
2327 {-# INLINABLE pull #-}
2772 {-# INLINABLE pull #-}
2328 pull = SpiderBehavior . pull . coerce
2773 pull = SpiderBehavior . pull . coerce
2329− {-# INLINABLE merge #-}
2774+ {-# INLINABLE fanG #-}
2330− merge = SpiderEvent . merge . dynamicConst . (coerce :: DMap k (R.Event (SpiderTimeline x)) -> DMap k (Event x))
2331− {-# INLINABLE fan #-}
2332− fan e = R.EventSelector $ SpiderEvent . select (fan (unSpiderEvent e))
2775+ fanG e = R.EventSelectorG $ SpiderEvent . selectG (fanG (unSpiderEvent e))
2776+ {-# INLINABLE mergeG #-}
2778+ :: forall k2 (k :: k2 -> *) q (v :: k2 -> *). GCompare k
2779+ => (forall a. q a -> R.Event (SpiderTimeline x) (v a))
2781+ -> R.Event (SpiderTimeline x) (DMap k v)
2782+ mergeG nt = SpiderEvent . mergeG (unSpiderEvent #. nt) . dynamicConst
2333 {-# INLINABLE switch #-}
2783 {-# INLINABLE switch #-}
2334 switch = SpiderEvent . switch . (coerce :: Behavior x (R.Event (SpiderTimeline x) a) -> Behavior x (Event x a)) . unSpiderBehavior
2784 switch = SpiderEvent . switch . (coerce :: Behavior x (R.Event (SpiderTimeline x) a) -> Behavior x (Event x a)) . unSpiderBehavior
2335 {-# INLINABLE coincidence #-}
2785 {-# INLINABLE coincidence #-}
@@ -2337,15 +2787,15 @@ instance HasSpiderTimeline x => R.Reflex (SpiderTimeline x) where
2337 {-# INLINABLE current #-}
2787 {-# INLINABLE current #-}
2338 current = SpiderBehavior . dynamicCurrent . unSpiderDynamic
2788 current = SpiderBehavior . dynamicCurrent . unSpiderDynamic
2339 {-# INLINABLE updated #-}
2789 {-# INLINABLE updated #-}
2340− updated = coerce $ SpiderEvent . dynamicUpdated . unSpiderDynamic
2790+ updated = SpiderEvent #. dynamicUpdated .# fmap coerce . unSpiderDynamic
2341 {-# INLINABLE unsafeBuildDynamic #-}
2791 {-# INLINABLE unsafeBuildDynamic #-}
2342 unsafeBuildDynamic readV0 v' = SpiderDynamic $ dynamicDynIdentity $ unsafeBuildDynamic (coerce readV0) $ coerce $ unSpiderEvent v'
2792 unsafeBuildDynamic readV0 v' = SpiderDynamic $ dynamicDynIdentity $ unsafeBuildDynamic (coerce readV0) $ coerce $ unSpiderEvent v'
2343 {-# INLINABLE unsafeBuildIncremental #-}
2793 {-# INLINABLE unsafeBuildIncremental #-}
2344 unsafeBuildIncremental readV0 dv = SpiderIncremental $ dynamicDyn $ unsafeBuildDynamic (coerce readV0) $ unSpiderEvent dv
2794 unsafeBuildIncremental readV0 dv = SpiderIncremental $ dynamicDyn $ unsafeBuildDynamic (coerce readV0) $ unSpiderEvent dv
2345− {-# INLINABLE mergeIncremental #-}
2795+ {-# INLINABLE mergeIncrementalG #-}
2346− mergeIncremental = SpiderEvent . merge . (unsafeCoerce :: Dynamic x (PatchDMap k (R.Event (SpiderTimeline x))) -> Dynamic x (PatchDMap k (Event x))) . unSpiderIncremental
2796+ mergeIncrementalG nt = SpiderEvent #. mergeG (coerce #. nt) .# unSpiderIncremental
2347− {-# INLINABLE mergeIncrementalWithMove #-}
2797+ {-# INLINABLE mergeIncrementalWithMoveG #-}
2348− mergeIncrementalWithMove = SpiderEvent . mergeWithMove . (unsafeCoerce :: Dynamic x (PatchDMapWithMove k (R.Event (SpiderTimeline x))) -> Dynamic x (PatchDMapWithMove k (Event x))) . unSpiderIncremental
2798+ mergeIncrementalWithMoveG nt = SpiderEvent #. mergeWithMove (coerce #. nt) .# unSpiderIncremental
2349 {-# INLINABLE currentIncremental #-}
2799 {-# INLINABLE currentIncremental #-}
2350 currentIncremental = SpiderBehavior . dynamicCurrent . unSpiderIncremental
2800 currentIncremental = SpiderBehavior . dynamicCurrent . unSpiderIncremental
2351 {-# INLINABLE updatedIncremental #-}
2801 {-# INLINABLE updatedIncremental #-}
@@ -2356,12 +2806,12 @@ instance HasSpiderTimeline x => R.Reflex (SpiderTimeline x) where
2356 return $ Identity <$> apply p c --TODO: Avoid the redundant 'apply'
2806 return $ Identity <$> apply p c --TODO: Avoid the redundant 'apply'
2357 eventCoercion Coercion = Coercion
2807 eventCoercion Coercion = Coercion
2358 behaviorCoercion Coercion = Coercion
2808 behaviorCoercion Coercion = Coercion
2359− dynamicCoercion = unsafeCoerce --TODO: How can we avoid this unsafeCoerce? This is safe only because we know how Identity works as a Patch instance
2809+ dynamicCoercion Coercion = Coercion
2810+ incrementalCoercion Coercion Coercion = Coercion
2360 {-# INLINABLE mergeIntIncremental #-}
2811 {-# INLINABLE mergeIntIncremental #-}
2361− mergeIntIncremental = SpiderEvent . mergeInt . (unsafeCoerce :: Dynamic x (PatchIntMap (R.Event (SpiderTimeline x) a)) -> Dynamic x (PatchIntMap (Event x a))) . unSpiderIncremental
2812+ mergeIntIncremental = SpiderEvent . mergeInt . coerce
2362 {-# INLINABLE fanInt #-}
2813 {-# INLINABLE fanInt #-}
2363 fanInt e = R.EventSelectorInt $ SpiderEvent . selectInt (fanInt (unSpiderEvent e))
2814 fanInt e = R.EventSelectorInt $ SpiderEvent . selectInt (fanInt (unSpiderEvent e))
2366data RootTrigger x a = forall k. GCompare k => RootTrigger (WeakBag (Subscriber x a), IORef (DMap k Identity), k a)
2816data RootTrigger x a = forall k. GCompare k => RootTrigger (WeakBag (Subscriber x a), IORef (DMap k Identity), k a)
@@ -2384,7 +2834,7 @@ instance MonadAtomicRef (EventM x) where
2384 atomicModifyRef r f = liftIO $ atomicModifyRef r f
2834 atomicModifyRef r f = liftIO $ atomicModifyRef r f
2386-- | The monad for actions that manipulate a Spider timeline identified by @x@
2836-- | The monad for actions that manipulate a Spider timeline identified by @x@
2387−newtype SpiderHost x a = SpiderHost { unSpiderHost :: ReaderT (SpiderTimelineEnv x) IO a } deriving (Functor, Applicative, MonadFix, MonadIO, MonadException, MonadAsyncException)
2837+newtype SpiderHost (x :: Type) a = SpiderHost { unSpiderHost :: IO a } deriving (Functor, Applicative, MonadFix, MonadIO, MonadException, MonadAsyncException)
2389instance Monad (SpiderHost x) where
2839instance Monad (SpiderHost x) where
2390 {-# INLINABLE (>>=) #-}
2840 {-# INLINABLE (>>=) #-}
@@ -2393,22 +2843,27 @@ instance Monad (SpiderHost x) where
2393 SpiderHost x >> SpiderHost y = SpiderHost $ x >> y
2843 SpiderHost x >> SpiderHost y = SpiderHost $ x >> y
2394 {-# INLINABLE return #-}
2844 {-# INLINABLE return #-}
2395 return x = SpiderHost $ return x
2845 return x = SpiderHost $ return x
2846+#if !MIN_VERSION_base(4,13,0)
2396 {-# INLINABLE fail #-}
2847 {-# INLINABLE fail #-}
2848+ fail = MonadFail.fail
2851+instance MonadFail (SpiderHost x) where
2852+ {-# INLINABLE fail #-}
2397− fail s = SpiderHost $ fail s
2853+ fail s = SpiderHost $ MonadFail.fail s
2399-- | Run an action affecting the global Spider timeline; this will be guarded by
2855-- | Run an action affecting the global Spider timeline; this will be guarded by
2400-- a mutex for that timeline
2856-- a mutex for that timeline
2401runSpiderHost :: SpiderHost Global a -> IO a
2857runSpiderHost :: SpiderHost Global a -> IO a
2402−runSpiderHost (SpiderHost a) = runReaderT a globalSpiderTimelineEnv
2858+runSpiderHost (SpiderHost a) = a
2404−#ifndef SPECIALIZE_TO_SPIDERTIMELINE_GLOBAL
2405-- | Run an action affecting a given Spider timeline; this will be guarded by a
2860-- | Run an action affecting a given Spider timeline; this will be guarded by a
2406-- mutex for that timeline
2861-- mutex for that timeline
2407runSpiderHostForTimeline :: SpiderHost x a -> SpiderTimelineEnv x -> IO a
2862runSpiderHostForTimeline :: SpiderHost x a -> SpiderTimelineEnv x -> IO a
2408−runSpiderHostForTimeline (SpiderHost a) = runReaderT a
2863+runSpiderHostForTimeline (SpiderHost a) _ = a
2865+newtype SpiderHostFrame (x :: Type) a = SpiderHostFrame { runSpiderHostFrame :: EventM x a }
2411−newtype SpiderHostFrame x a = SpiderHostFrame { runSpiderHostFrame :: EventM x a } deriving (Functor, Applicative, MonadFix, MonadIO, MonadException, MonadAsyncException)
2866+ deriving (Functor, Applicative, MonadFix, MonadIO, MonadException, MonadAsyncException)
2413instance Monad (SpiderHostFrame x) where
2868instance Monad (SpiderHostFrame x) where
2414 {-# INLINABLE (>>=) #-}
2869 {-# INLINABLE (>>=) #-}
@@ -2417,19 +2872,21 @@ instance Monad (SpiderHostFrame x) where
2417 SpiderHostFrame x >> SpiderHostFrame y = SpiderHostFrame $ x >> y
2872 SpiderHostFrame x >> SpiderHostFrame y = SpiderHostFrame $ x >> y
2418 {-# INLINABLE return #-}
2873 {-# INLINABLE return #-}
2419 return x = SpiderHostFrame $ return x
2874 return x = SpiderHostFrame $ return x
2875+#if !MIN_VERSION_base(4,13,0)
2420 {-# INLINABLE fail #-}
2876 {-# INLINABLE fail #-}
2421 fail s = SpiderHostFrame $ fail s
2877 fail s = SpiderHostFrame $ fail s
2423−instance NotReady x (SpiderHostFrame x) where
2880+instance NotReady (SpiderTimeline x) (SpiderHostFrame x) where
2424 notReadyUntil _ = pure ()
2881 notReadyUntil _ = pure ()
2425 notReady = pure ()
2882 notReady = pure ()
2427−newEventWithTriggerIO :: (RootTrigger x a -> IO (IO ())) -> IO (Event x a)
2884+newEventWithTriggerIO :: forall x a. HasSpiderTimeline x => (RootTrigger x a -> IO (IO ())) -> IO (Event x a)
2428newEventWithTriggerIO f = do
2885newEventWithTriggerIO f = do
2429 es <- newFanEventWithTriggerIO $ \Refl -> f
2886 es <- newFanEventWithTriggerIO $ \Refl -> f
2430 return $ select es Refl
2887 return $ select es Refl
2432−newFanEventWithTriggerIO :: GCompare k => (forall a. k a -> RootTrigger x a -> IO (IO ())) -> IO (EventSelector x k)
2889+newFanEventWithTriggerIO :: (HasSpiderTimeline x, GCompare k) => (forall a. k a -> RootTrigger x a -> IO (IO ())) -> IO (EventSelector x k)
2433newFanEventWithTriggerIO f = do
2890newFanEventWithTriggerIO f = do
2434 occRef <- newIORef DMap.empty
2891 occRef <- newIORef DMap.empty
2435 subscribedRef <- newIORef DMap.empty
2892 subscribedRef <- newIORef DMap.empty
@@ -2463,3 +2920,11 @@ instance MonadAtomicRef (SpiderHostFrame x) where
2463instance PrimMonad (SpiderHostFrame x) where
2920instance PrimMonad (SpiderHostFrame x) where
2464 type PrimState (SpiderHostFrame x) = PrimState IO
2921 type PrimState (SpiderHostFrame x) = PrimState IO
2465 primitive = SpiderHostFrame . EventM . primitive
2922 primitive = SpiderHostFrame . EventM . primitive
2924+instance NotReady (SpiderTimeline x) (SpiderHost x) where
2925+ notReadyUntil _ = return ()
2926+ notReady = return ()
2928+instance HasSpiderTimeline x => NotReady (SpiderTimeline x) (PerformEventT (SpiderTimeline x) (SpiderHost x)) where
2929+ notReadyUntil _ = return ()
2930+ notReady = return ()