@@ -2,132 +2,86 @@
2{-# LANGUAGE CPP #-}
2{-# LANGUAGE CPP #-}
3{-# LANGUAGE ConstraintKinds #-}
3{-# LANGUAGE ConstraintKinds #-}
4{-# LANGUAGE EmptyDataDecls #-}
4{-# LANGUAGE EmptyDataDecls #-}
5−{-# LANGUAGE ExistentialQuantification #-}
6{-# LANGUAGE FlexibleContexts #-}
5{-# LANGUAGE FlexibleContexts #-}
7{-# LANGUAGE FlexibleInstances #-}
6{-# LANGUAGE FlexibleInstances #-}
8{-# LANGUAGE FunctionalDependencies #-}
7{-# LANGUAGE FunctionalDependencies #-}
9{-# LANGUAGE GADTs #-}
8{-# LANGUAGE GADTs #-}
10{-# LANGUAGE GeneralizedNewtypeDeriving #-}
9{-# LANGUAGE GeneralizedNewtypeDeriving #-}
11{-# LANGUAGE LambdaCase #-}
10{-# LANGUAGE LambdaCase #-}
11+{-# LANGUAGE MagicHash #-}
12+{-# LANGUAGE MultiParamTypeClasses #-}
13+{-# LANGUAGE MultiWayIf #-}
12{-# LANGUAGE RankNTypes #-}
14{-# LANGUAGE RankNTypes #-}
13{-# LANGUAGE RoleAnnotations #-}
15{-# LANGUAGE RoleAnnotations #-}
14{-# LANGUAGE ScopedTypeVariables #-}
16{-# LANGUAGE ScopedTypeVariables #-}
15{-# LANGUAGE TypeFamilies #-}
17{-# LANGUAGE TypeFamilies #-}
16{-# LANGUAGE TypeOperators #-}
18{-# LANGUAGE TypeOperators #-}
17{-# LANGUAGE UndecidableInstances #-}
19{-# LANGUAGE UndecidableInstances #-}
18−{-# LANGUAGE PolyKinds #-}
19−{-# LANGUAGE DeriveFunctor #-}
20−{-# LANGUAGE StandaloneDeriving #-}
21−{-# LANGUAGE InstanceSigs #-}
22−{-# LANGUAGE MultiWayIf #-}
24−#ifdef USE_REFLEX_OPTIMIZER
25{-# OPTIONS_GHC -fplugin=Reflex.Optimizer #-}
20{-# OPTIONS_GHC -fplugin=Reflex.Optimizer #-}
21+#ifdef SPECIALIZE_TO_SPIDERTIMELINE_GLOBAL
22+{-# OPTIONS_GHC -fno-warn-orphans #-}
27−{-# OPTIONS_GHC -Wunused-binds #-}
28-- | This module is the implementation of the 'Spider' 'Reflex' engine. It uses
24-- | This module is the implementation of the 'Spider' 'Reflex' engine. It uses
29-- a graph traversal algorithm to propagate 'Event's and 'Behavior's.
25-- a graph traversal algorithm to propagate 'Event's and 'Behavior's.
30−module Reflex.Spider.Internal (module Reflex.Spider.Internal) where
26+module Reflex.Spider.Internal where
32−#if MIN_VERSION_base(4,10,0)
33−import Control.Applicative (liftA2)
28+import Control.Applicative
35import Control.Concurrent
29import Control.Concurrent
36import Control.Exception
30import Control.Exception
37−import Control.Monad hiding (forM, forM_, mapM, mapM_)
31+import Control.Monad hiding (forM, forM_, mapM, mapM_, sequence)
38import Control.Monad.Exception
32import Control.Monad.Exception
39−import Control.Monad.Identity hiding (forM, forM_, mapM, mapM_)
33+import Control.Monad.Identity hiding (forM, forM_, mapM, mapM_, sequence)
40import Control.Monad.Primitive
34import Control.Monad.Primitive
41−import Control.Monad.Reader.Class
35+import Control.Monad.Reader hiding (forM, forM_, mapM, mapM_, sequence)
42−import Control.Monad.IO.Class
43−import Control.Monad.ReaderIO
44import Control.Monad.Ref
36import Control.Monad.Ref
45−import Control.Monad.Fail (MonadFail)
46−import qualified Control.Monad.Fail as MonadFail
47import Data.Align
37import Data.Align
48import Data.Coerce
38import Data.Coerce
49−import Data.Dependent.Map (DMap)
39+import Data.Dependent.Map (DMap, DSum (..))
50import qualified Data.Dependent.Map as DMap
40import qualified Data.Dependent.Map as DMap
51−import Data.Dependent.Sum (DSum (..))
52−import Data.FastMutableIntMap (FastMutableIntMap, PatchIntMap (..))
53−import qualified Data.FastMutableIntMap as FastMutableIntMap
54import Data.Foldable hiding (concat, elem, sequence_)
41import Data.Foldable hiding (concat, elem, sequence_)
55import Data.Functor.Constant
43import Data.Functor.Constant
56−import Data.Functor.Misc
57import Data.Functor.Product
44import Data.Functor.Product
58import Data.GADT.Compare
45import Data.GADT.Compare
59import Data.IntMap.Strict (IntMap)
46import Data.IntMap.Strict (IntMap)
60import qualified Data.IntMap.Strict as IntMap
47import qualified Data.IntMap.Strict as IntMap
61import Data.IORef
48import Data.IORef
62−import Data.Kind (Type)
49+import Data.List hiding (foldl')
63−import Data.Maybe hiding (mapMaybe)
50+import Data.Maybe
64−import Data.Monoid (mempty, (<>))
51+import Data.Monoid ((<>))
65import Data.Proxy
52import Data.Proxy
53+import Data.Some (Some)
54+import qualified Data.Some as Some
66import Data.These
55import Data.These
67import Data.Traversable
56import Data.Traversable
68−import Data.Type.Equality ((:~:)(Refl))
57+import Data.Type.Coercion
69−import Data.Witherable (Filterable, mapMaybe)
58+import Data.Word
70−import GHC.Exts hiding (toList)
59+import GHC.Exts
71import GHC.IORef (IORef (..))
60import GHC.IORef (IORef (..))
72import GHC.Stack
61import GHC.Stack
73−import Reflex.FastWeak
74import System.IO.Unsafe
62import System.IO.Unsafe
75import System.Mem.Weak
63import System.Mem.Weak
76import Unsafe.Coerce
64import Unsafe.Coerce
78−#ifdef MIN_VERSION_semialign
79−#if MIN_VERSION_these(0,8,0)
80−import Data.These.Combinators (justThese)
82−#if MIN_VERSION_semialign(1,1,0)
83−import Data.Zip (Zip (..))
87#ifdef DEBUG_CYCLES
66#ifdef DEBUG_CYCLES
88import Control.Monad.State hiding (forM, forM_, mapM, mapM_, sequence)
67import Control.Monad.State hiding (forM, forM_, mapM, mapM_, sequence)
91import Data.List.NonEmpty (NonEmpty (..), nonEmpty)
68import Data.List.NonEmpty (NonEmpty (..), nonEmpty)
92import qualified Data.List.NonEmpty as NonEmpty
69import qualified Data.List.NonEmpty as NonEmpty
70+import Data.Monoid (mempty)
93import Data.Tree (Forest, Tree (..), drawForest)
71import Data.Tree (Forest, Tree (..), drawForest)
94−import Data.List (isPrefixOf)
72+#endif
96−import Data.FastWeakBag (FastWeakBag, FastWeakBagTicket)
97−import qualified Data.FastWeakBag as FastWeakBag
99−import Data.Reflection
100−import Data.Some (Some(Some))
101−import Data.Type.Coercion
102−import Data.Profunctor.Unsafe ((#.), (.#))
103−import Data.WeakBag (WeakBag, WeakBagTicket, _weakBag_children)
74+import Data.WeakBag (WeakBag, WeakBagTicket)
104import qualified Data.WeakBag as WeakBag
75import qualified Data.WeakBag as WeakBag
105−import qualified Reflex.Class
106import qualified Reflex.Class as R
76import qualified Reflex.Class as R
107−import qualified Reflex.Host.Class
77+#ifdef SPECIALIZE_TO_SPIDERTIMELINE_GLOBAL
108−import Reflex.NotReady.Class
78+import Reflex.Class (SpiderTimeline, Global)
110−import qualified Data.Patch.DMapWithMove as PatchDMapWithMove
111−import Reflex.PerformEvent.Base (PerformEventT)
113−#ifdef DEBUG_TRACE_EVENTS
114−import qualified Data.ByteString.Char8 as BS8
115−import System.IO (stderr)
116−import Data.List (isPrefixOf)
81+import qualified Reflex.Host.Class as R
119−-- TODO stdout might not be the best channel for debug output
83+-- Note: must come last to silence warnings due to AMP on GHC < 7.10
120−debugStrLn :: String -> IO ()
84+import Prelude hiding (any, concat, mapM, mapM_, sequence)
121−debugStrLn = putStrLn
123−#ifdef DEBUG_TRACE_EVENTS
124−withStackOneLine :: (BS8.ByteString -> a) -> a
125−withStackOneLine expr = unsafePerformIO $ do
126− stack <- currentCallStack
127− return (expr . BS8.pack . unwords . dropInternal . reverse $ stack)
128− where dropInternal = filterStack "Reflex.Spider.Internal"
132debugPropagate :: Bool
86debugPropagate :: Bool
@@ -136,42 +90,28 @@ debugInvalidateHeight :: Bool
136debugInvalidate :: Bool
90debugInvalidate :: Bool
138#ifdef DEBUG
92#ifdef DEBUG
139#define DEBUG_NODEIDS
94#define DEBUG_NODEIDS
141−#ifdef DEBUG_TRACE_PROPAGATION
142debugPropagate = True
96debugPropagate = True
144−debugPropagate = False
147−#ifdef DEBUG_TRACE_HEIGHT
148−debugInvalidateHeight = True
150debugInvalidateHeight = False
98debugInvalidateHeight = False
153−#ifdef DEBUG_TRACE_INVALIDATION
154debugInvalidate = True
100debugInvalidate = True
156−debugInvalidate = False
159class HasNodeId a where
102class HasNodeId a where
160 getNodeId :: a -> Int
103 getNodeId :: a -> Int
162−instance HasNodeId (CacheSubscribed x a) where
105+instance HasNodeId (Hold x p a) where
163− getNodeId = _cacheSubscribed_nodeId
165−instance HasNodeId (FanInt x a) where
166− getNodeId = _fanInt_nodeId
168−instance HasNodeId (Hold x p) where
169 getNodeId = holdNodeId
106 getNodeId = holdNodeId
108+instance HasNodeId (PushSubscribed x a b) where
109+ getNodeId = pushSubscribedNodeId
171instance HasNodeId (SwitchSubscribed x a) where
111instance HasNodeId (SwitchSubscribed x a) where
172 getNodeId = switchSubscribedNodeId
112 getNodeId = switchSubscribedNodeId
174−instance HasNodeId (FanSubscribed x v a) where
114+instance HasNodeId (FanSubscribed x a) where
175 getNodeId = fanSubscribedNodeId
115 getNodeId = fanSubscribedNodeId
177instance HasNodeId (CoincidenceSubscribed x a) where
117instance HasNodeId (CoincidenceSubscribed x a) where
@@ -185,16 +125,41 @@ instance HasNodeId (Pull x a) where
186{-# INLINE showNodeId #-}
126{-# INLINE showNodeId #-}
187showNodeId :: HasNodeId a => a -> String
127showNodeId :: HasNodeId a => a -> String
188−showNodeId = showNodeId' . getNodeId
128+showNodeId = ("#"<>) . show . getNodeId
190−showNodeId' :: Int -> String
130+showSubscriberType :: Subscriber x a -> String
191−showNodeId' = ("#"<>) . show
131+showSubscriberType = \case
192−
132+ SubscriberPush _ _ -> "SubscriberPush"
133+ SubscriberMerge _ _ -> "SubscriberMerge"
134+ SubscriberFan _ -> "SubscriberFan"
135+ SubscriberMergeChange _ -> "SubscriberMergeChange"
136+ SubscriberHold _ -> "SubscriberHold"
137+ SubscriberHoldIdentity _ -> "SubscriberHoldIdentity"
138+ SubscriberSwitch _ -> "SubscriberSwitch"
139+ SubscriberCoincidenceOuter _ -> "SubscriberCoincidenceOuter"
140+ SubscriberCoincidenceInner _ -> "SubscriberCoincidenceInner"
141+ SubscriberHandle -> "SubscriberHandle"
143+showEventType :: Event x a -> String
144+showEventType = \case
145+ EventRoot _ _ -> "EventRoot"
146+ EventNever -> "EventNever"
147+ EventPush _ -> "EventPush"
148+ EventMerge _ -> "EventMerge"
149+ EventFan _ _ -> "EventFan"
150+ EventSwitch _ -> "EventSwitch"
151+ EventCoincidence _ -> "EventCoincidence"
152+ EventHold _ -> "EventHold"
153+ EventDyn _ -> "EventDyn"
154+ EventHoldIdentity _ -> "EventHoldIdentity"
155+ EventDynIdentity _ -> "EventDynIdentity"
196debugPropagate = False
159debugPropagate = False
197debugInvalidateHeight = False
161debugInvalidateHeight = False
198debugInvalidate = False
163debugInvalidate = False
200-- This must be inline, or error messages will cause memory leaks due to retaining the node in question
165-- This must be inline, or error messages will cause memory leaks due to retaining the node in question
@@ -202,10 +167,6 @@ debugInvalidate = False
202showNodeId :: a -> String
167showNodeId :: a -> String
203showNodeId _ = ""
168showNodeId _ = ""
205−{-# INLINE showNodeId' #-}
206−showNodeId' :: Int -> String
211#ifdef DEBUG_NODEIDS
172#ifdef DEBUG_NODEIDS
@@ -215,21 +176,13 @@ nextNodeIdRef = unsafePerformIO $ newIORef 1
216newNodeId :: IO Int
177newNodeId :: IO Int
217newNodeId = atomicModifyIORef' nextNodeIdRef $ \n -> (succ n, n)
178newNodeId = atomicModifyIORef' nextNodeIdRef $ \n -> (succ n, n)
220−--------------------------------------------------------------------------------
222−--------------------------------------------------------------------------------
224−--NB: Once you subscribe to an Event, you must always hold on the the WHOLE EventSubscription you get back
225−-- If you do not retain the subscription, you may be prematurely unsubscribed from the parent event.
226−data EventSubscription x = EventSubscription
227− { _eventSubscription_unsubscribe :: !(IO ())
228− , _eventSubscription_subscribed :: {-# UNPACK #-} !(EventSubscribed x)
231−unsubscribe :: EventSubscription x -> IO ()
180+{-# NOINLINE unsafeNodeId #-}
232−unsubscribe (EventSubscription u _) = u
181+unsafeNodeId :: a -> Int
182+unsafeNodeId a = unsafePerformIO $ do
234--------------------------------------------------------------------------------
187--------------------------------------------------------------------------------
@@ -241,174 +194,86 @@ newtype Event x a = Event { unEvent :: Subscriber x a -> EventM x (EventSubscrip
241subscribeAndRead :: Event x a -> Subscriber x a -> EventM x (EventSubscription x, Maybe a)
194subscribeAndRead :: Event x a -> Subscriber x a -> EventM x (EventSubscription x, Maybe a)
242subscribeAndRead = unEvent
195subscribeAndRead = unEvent
245−"cacheEvent/cacheEvent" forall e. cacheEvent (cacheEvent e) = cacheEvent e
197+{-# RULES "pushCheap/cacheEvent" forall f e. pushCheap f (cacheEvent e) = pushCheap f e #-}
246−"cacheEvent/pushCheap" forall f e. pushCheap f (cacheEvent e) = cacheEvent (pushCheap f e)
198+{-# RULES "hold/cacheEvent" forall f e. hold f (cacheEvent e) = hold f e #-}
247−"hold/cacheEvent" forall f e. hold f (cacheEvent e) = hold f e
200+ "subscribeAndRead/cacheEvent" forall e. subscribeAndRead (cacheEvent e) = subscribeAndRead e
250-- | Construct an 'Event' equivalent to that constructed by 'push', but with no
203-- | Construct an 'Event' equivalent to that constructed by 'push', but with no
251-- caching; if the computation function is very cheap, this is (much) more
204-- caching; if the computation function is very cheap, this is (much) more
252-- efficient than 'push'
205-- efficient than 'push'
206+{- INLINABLE pushCheap #-}
253{-# INLINE [1] pushCheap #-}
207{-# INLINE [1] pushCheap #-}
254pushCheap :: HasSpiderTimeline x => (a -> ComputeM x (Maybe b)) -> Event x a -> Event x b
208pushCheap :: HasSpiderTimeline x => (a -> ComputeM x (Maybe b)) -> Event x a -> Event x b
255−pushCheap !f e = Event $ \sub -> do
209+pushCheap f e = Event $ \sub -> do
256− (subscription, occ) <- subscribeAndRead e $ debugSubscriber' "push" $ sub
210+ (subscription, occ) <- subscribeAndRead e $ sub
257 { subscriberPropagate = \a -> do
211 { subscriberPropagate = \a -> do
258− mb <- f a
212+ mb <- runComputeM $ f a
259 mapM_ (subscriberPropagate sub) mb
213 mapM_ (subscriberPropagate sub) mb
261− occ' <- join <$> mapM f occ
215+ occ' <- join <$> mapM (runComputeM . f) occ
262 return (subscription, occ')
216 return (subscription, occ')
264−-- | A subscriber that never triggers other 'Event's
265−{-# INLINE terminalSubscriber #-}
266−terminalSubscriber :: (a -> EventM x ()) -> Subscriber x a
267−terminalSubscriber p = Subscriber
268− { subscriberPropagate = p
269− , subscriberInvalidateHeight = \_ -> return ()
270− , subscriberRecalculateHeight = \_ -> return ()
273−-- | Subscribe to an Event only for the duration of one occurrence
274−{-# INLINE subscribeAndReadHead #-}
275−subscribeAndReadHead :: HasSpiderTimeline x => Event x a -> Subscriber x a -> EventM x (EventSubscription x, Maybe a)
276−subscribeAndReadHead e sub = do
277− subscriptionRef <- liftIO $ newIORef $ error "subscribeAndReadHead: not initialized"
278− (subscription, occ) <- subscribeAndRead e $ debugSubscriber' "head" $ sub
279− { subscriberPropagate = \a -> do
280− liftIO $ unsubscribe =<< readIORef subscriptionRef
281− subscriberPropagate sub a
283− liftIO $ case occ of
284− Nothing -> writeIORef subscriptionRef $! subscription
285− Just _ -> unsubscribe subscription
286− return (subscription, occ)
288−--TODO: Make this lazy in its input event
289−headE :: (MonadIO m, Defer (SomeMergeInit x) m, HasSpiderTimeline x) => Event x a -> m (Event x a)
291− parent <- liftIO $ newIORef $ Just originalE
292− defer $ SomeMergeInit $ do --TODO: Rename SomeMergeInit appropriately
293− let clearParent = liftIO $ writeIORef parent Nothing
294− (_, occ) <- subscribeAndReadHead originalE $ terminalSubscriber $ const clearParent
295− when (isJust occ) clearParent
296− return $ Event $ \sub ->
297− liftIO (readIORef parent) >>= \case
298− Nothing -> subscribeAndReadNever
299− Just e -> subscribeAndReadHead e sub
301data CacheSubscribed x a
218data CacheSubscribed x a
302− = CacheSubscribed { _cacheSubscribed_subscribers :: {-# UNPACK #-} !(FastWeakBag (Subscriber x a))
219+ = CacheSubscribed { _cacheSubscribed_subscribers :: {-# UNPACK #-} !(WeakBag (Subscriber x a))
220+ , _cacheSubscribed_weakSelf :: {-# UNPACK #-} !(IORef (Weak (CacheSubscribed x a)))
303 , _cacheSubscribed_parent :: {-# UNPACK #-} !(EventSubscription x)
221 , _cacheSubscribed_parent :: {-# UNPACK #-} !(EventSubscription x)
222+ , _cacheSubscribed_cached :: {-# UNPACK #-} !(IORef (Maybe (CacheSubscribed x a)))
304 , _cacheSubscribed_occurrence :: {-# UNPACK #-} !(IORef (Maybe a))
223 , _cacheSubscribed_occurrence :: {-# UNPACK #-} !(IORef (Maybe a))
306− , _cacheSubscribed_nodeId :: {-# UNPACK #-} !Int
310−nowSpiderEventM :: (HasSpiderTimeline x) => EventM x (R.Event (SpiderTimeline x) ())
314−now :: (MonadIO m, Defer (Some Clear) m, HasSpiderTimeline x
317− nowOrNot <- liftIO $ newIORef $ Just ()
318− scheduleClear nowOrNot
319− return . Event $ \_ -> do
320− occ <- liftIO . readIORef $ nowOrNot
321− return ( EventSubscription (return ()) eventSubscribedNow
325-- | Construct an 'Event' whose value is guaranteed not to be recomputed
226-- | Construct an 'Event' whose value is guaranteed not to be recomputed
326-- repeatedly
227-- repeatedly
328--TODO: Try a caching strategy where we subscribe directly to the parent when
229--TODO: Try a caching strategy where we subscribe directly to the parent when
329−--there's only one subscriber, and then build our own FastWeakBag only when a second
230+--there's only one subscriber, and then build our own WeakBag only when a second
330--subscriber joins
231--subscriber joins
331−{-# NOINLINE [0] cacheEvent #-}
232+{-# NOINLINE [1] cacheEvent #-}
332−cacheEvent :: forall x a. HasSpiderTimeline x => Event x a -> Event x a
233+cacheEvent :: HasSpiderTimeline x => Event x a -> Event x a
334−#ifdef DEBUG_TRACE_EVENTS
335− withStackOneLine $ \callSite -> Event $
339− unsafePerformIO $ do
340− mSubscribedRef :: IORef (FastWeak (CacheSubscribed x a))
341− <- newIORef emptyFastWeak
342− pure $ \sub -> {-# SCC "cacheEvent" #-} do
234+cacheEvent e = Event $ \sub -> {-# SCC "cacheEvent" #-} do
343−#ifdef DEBUG_TRACE_EVENTS
235+ let !mSubscribedRef = unsafeNewIORef e Nothing
344− unless (BS8.null callSite) $ liftIO $ BS8.hPutStrLn stderr callSite
346− subscribedTicket <- liftIO (readIORef mSubscribedRef >>= getFastWeakTicket) >>= \case
236+ mSubscribed <- liftIO $ readIORef mSubscribedRef
347− Just subscribedTicket -> return subscribedTicket
237+ case mSubscribed of
348− Nothing -> do
238+ Just subscribed -> liftIO $ do
350− nodeId <- liftIO newNodeId
352− subscribers <- liftIO FastWeakBag.empty
353− occRef <- liftIO $ newIORef Nothing -- This should never be read prior to being set below
355− (parentSub, occ) <- subscribeAndRead e $ debugSubscriber' ("cacheEvent" <> showNodeId' nodeId) $ Subscriber
357− (parentSub, occ) <- subscribeAndRead e $ Subscriber
359− { subscriberPropagate = \a -> do
360− liftIO $ writeIORef occRef (Just a)
361− scheduleClear occRef
362− propagateFast a subscribers
363− , subscriberInvalidateHeight = FastWeakBag.traverse_ subscribers . invalidateSubscriberHeight
364− , subscriberRecalculateHeight = FastWeakBag.traverse_ subscribers . recalculateSubscriberHeight
366− when (isJust occ) $ do
367− liftIO $ writeIORef occRef occ -- Set the initial value of occRef; we don't need to do this if occ is Nothing
368− scheduleClear occRef
369− let !subscribed = CacheSubscribed
370− { _cacheSubscribed_subscribers = subscribers
371− , _cacheSubscribed_parent = parentSub
372− , _cacheSubscribed_occurrence = occRef
374− , _cacheSubscribed_nodeId = nodeId
377− subscribedTicket <- liftIO $ mkFastWeakTicket subscribed
378− liftIO $ writeIORef mSubscribedRef =<< getFastWeakTicketWeak subscribedTicket
379− return subscribedTicket
380− liftIO $ cacheSubscription sub mSubscribedRef subscribedTicket
382−cacheSubscription :: Subscriber x a -> IORef (FastWeak (CacheSubscribed x a))
383− -> FastWeakTicket (CacheSubscribed x a) -> IO (EventSubscription x, Maybe a)
384−cacheSubscription sub mSubscribedRef subscribedTicket = do
385− subscribed <- getFastWeakTicketValue subscribedTicket
386− ticket <- FastWeakBag.insert sub $ _cacheSubscribed_subscribers subscribed
239+ ticket <- WeakBag.insert sub (_cacheSubscribed_subscribers subscribed) (_cacheSubscribed_weakSelf subscribed) cleanupCacheSubscribed
387− occ <- readIORef $ _cacheSubscribed_occurrence subscribed
240+ occ <- readIORef $ _cacheSubscribed_occurrence subscribed
389− let parentSub = _cacheSubscribed_parent subscribed
390− es = EventSubscription
391− { _eventSubscription_unsubscribe = do
392− FastWeakBag.remove ticket
394− isEmpty <- FastWeakBag.isEmpty $ _cacheSubscribed_subscribers subscribed
396− writeIORef mSubscribedRef emptyFastWeak
397− unsubscribe parentSub
399− touch subscribedTicket
400− , _eventSubscription_subscribed = EventSubscribed
241+ let es = EventSubscribed
401− { eventSubscribedHeightRef = eventSubscribedHeightRef $ _eventSubscription_subscribed parentSub
242+ { eventSubscribedHeightRef = eventSubscribedHeightRef $ _eventSubscription_subscribed $ _cacheSubscribed_parent subscribed
402− , eventSubscribedRetained = toAny subscribedTicket
243+ , eventSubscribedRetained = toAny subscribed
403−#ifdef DEBUG_CYCLES
244+ }
404− , eventSubscribedGetParents = return [_eventSubscription_subscribed parentSub]
245+ return (EventSubscription (WeakBag.remove ticket >> touch ticket) es, occ)
405− , eventSubscribedHasOwnHeightRef = False
246+ Nothing -> do
406− , eventSubscribedWhoCreated = whoCreatedIORef mSubscribedRef
247+ weakSelf <- liftIO $ newIORef $ error "cacheEvent: weakSelf not yet intialized"
407−#endif
248+ (subscribers, ticket) <- liftIO $ WeakBag.singleton sub weakSelf cleanupCacheSubscribed
408− }
249+ occRef <- liftIO $ newIORef undefined
250+ (parentSub, occ) <- subscribeAndRead e $ Subscriber
251+ { subscriberPropagate = \a -> do
252+ liftIO $ writeIORef occRef $ Just a
253+ scheduleClear occRef
254+ propagate a subscribers
255+ , subscriberInvalidateHeight = \old -> do
256+ WeakBag.traverse subscribers $ invalidateSubscriberHeight old
257+ , subscriberRecalculateHeight = \new -> do
258+ WeakBag.traverse subscribers $ recalculateSubscriberHeight new
410− return (es, occ)
260+ liftIO $ writeIORef occRef occ
261+ when (isJust occ) $ scheduleClear occRef
262+ let !subscribed = CacheSubscribed
263+ { _cacheSubscribed_subscribers = subscribers
264+ , _cacheSubscribed_weakSelf = weakSelf
265+ , _cacheSubscribed_parent = parentSub
266+ , _cacheSubscribed_cached = mSubscribedRef
267+ , _cacheSubscribed_occurrence = occRef
269+ liftIO $ writeIORef mSubscribedRef $ Just subscribed
270+ liftIO $ writeIORef weakSelf =<< evaluate =<< mkWeakPtrWithDebug subscribed "PushSubscribed"
271+ return (EventSubscription (WeakBag.remove ticket >> touch ticket) (EventSubscribed (eventSubscribedHeightRef $ _eventSubscription_subscribed parentSub) (toAny subscribed)), occ)
273+cleanupCacheSubscribed :: CacheSubscribed x a -> IO ()
274+cleanupCacheSubscribed self = do
275+ unsubscribe $ _cacheSubscribed_parent self
276+ writeIORef (_cacheSubscribed_cached self) Nothing
413subscribe :: Event x a -> Subscriber x a -> EventM x (EventSubscription x)
278subscribe :: Event x a -> Subscriber x a -> EventM x (EventSubscription x)
414subscribe e s = fst <$> subscribeAndRead e s
279subscribe e s = fst <$> subscribeAndRead e s
@@ -420,16 +285,13 @@ wrap tag getSpecificSubscribed sub = do
420 let es = tag subd
285 let es = tag subd
421 return (EventSubscription (WeakBag.remove sln >> touch sln) es, occ)
286 return (EventSubscription (WeakBag.remove sln >> touch sln) es, occ)
423−eventRoot :: (GCompare k, HasSpiderTimeline x) => k a -> Root x k -> Event x a
288+eventRoot :: GCompare k => k a -> Root x k -> Event x a
424eventRoot !k !r = Event $ wrap eventSubscribedRoot $ liftIO . getRootSubscribed k r
289eventRoot !k !r = Event $ wrap eventSubscribedRoot $ liftIO . getRootSubscribed k r
426−subscribeAndReadNever :: EventM x (EventSubscription x, Maybe a)
427−subscribeAndReadNever = return (EventSubscription (return ()) eventSubscribedNever, Nothing)
429eventNever :: Event x a
291eventNever :: Event x a
430−eventNever = Event $ const subscribeAndReadNever
292+eventNever = Event $ \_ -> return (EventSubscription (return ()) eventSubscribedNever, Nothing)
432−eventFan :: (GCompare k, HasSpiderTimeline x) => k a -> Fan x k v -> Event x (v a)
294+eventFan :: (GCompare k, HasSpiderTimeline x) => k a -> Fan x k -> Event x a
433eventFan !k !f = Event $ wrap eventSubscribedFan $ getFanSubscribed k f
295eventFan !k !f = Event $ wrap eventSubscribedFan $ getFanSubscribed k f
435eventSwitch :: HasSpiderTimeline x => Switch x a -> Event x a
297eventSwitch :: HasSpiderTimeline x => Switch x a -> Event x a
@@ -438,14 +300,14 @@ eventSwitch !s = Event $ wrap eventSubscribedSwitch $ getSwitchSubscribed s
438eventCoincidence :: HasSpiderTimeline x => Coincidence x a -> Event x a
300eventCoincidence :: HasSpiderTimeline x => Coincidence x a -> Event x a
439eventCoincidence !c = Event $ wrap eventSubscribedCoincidence $ getCoincidenceSubscribed c
301eventCoincidence !c = Event $ wrap eventSubscribedCoincidence $ getCoincidenceSubscribed c
441−eventHold :: Hold x p -> Event x p
303+eventHold :: HasSpiderTimeline x => Hold x p -> Event x p
442eventHold !h = Event $ subscribeHoldEvent h
304eventHold !h = Event $ subscribeHoldEvent h
444eventDyn :: (HasSpiderTimeline x, Patch p) => Dyn x p -> Event x p
306eventDyn :: (HasSpiderTimeline x, Patch p) => Dyn x p -> Event x p
445eventDyn !j = Event $ \sub -> getDynHold j >>= \h -> subscribeHoldEvent h sub
307eventDyn !j = Event $ \sub -> getDynHold j >>= \h -> subscribeHoldEvent h sub
447{-# INLINE subscribeCoincidenceInner #-}
309{-# INLINE subscribeCoincidenceInner #-}
448−subscribeCoincidenceInner :: HasSpiderTimeline x => Event x a -> Height -> CoincidenceSubscribed x a -> EventM x (Maybe a, Height, EventSubscribed x)
310+subscribeCoincidenceInner :: CanSubscribe x m => Event x a -> Height -> CoincidenceSubscribed x a -> m (Maybe a, Height, EventSubscribed x)
449subscribeCoincidenceInner inner outerHeight subscribedUnsafe = do
311subscribeCoincidenceInner inner outerHeight subscribedUnsafe = do
450 subInner <- liftIO $ newSubscriberCoincidenceInner subscribedUnsafe
312 subInner <- liftIO $ newSubscriberCoincidenceInner subscribedUnsafe
451 (subscription@(EventSubscription _ innerSubd), innerOcc) <- subscribeAndRead inner subInner
313 (subscription@(EventSubscription _ innerSubd), innerOcc) <- subscribeAndRead inner subInner
@@ -464,6 +326,16 @@ data Subscriber x a = Subscriber
464 , subscriberRecalculateHeight :: !(Height -> IO ())
326 , subscriberRecalculateHeight :: !(Height -> IO ())
329+--TODO: Move this comment to WeakBag
330+-- These function are constructor functions that are marked NOINLINE so they are
331+-- opaque to GHC. If we do not do this, then GHC will sometimes fuse the constructor away
332+-- so any weak references that are attached to the constructors will have their
333+-- finalizer run. Using the opaque constructor, does not see the
334+-- constructor application, so it behaves like an IORef and cannot be fused away.
336+-- The result is also evaluated to WHNF, since forcing a thunk invalidates
337+-- the weak pointer to it in some cases.
467newSubscriberHold :: (HasSpiderTimeline x, Patch p) => Hold x p -> IO (Subscriber x p)
339newSubscriberHold :: (HasSpiderTimeline x, Patch p) => Hold x p -> IO (Subscriber x p)
468newSubscriberHold h = return $ Subscriber
340newSubscriberHold h = return $ Subscriber
469 { subscriberPropagate = {-# SCC "traverseHold" #-} propagateSubscriberHold h
341 { subscriberPropagate = {-# SCC "traverseHold" #-} propagateSubscriberHold h
@@ -471,68 +343,85 @@ newSubscriberHold h = return $ Subscriber
471 , subscriberRecalculateHeight = \_ -> return ()
343 , subscriberRecalculateHeight = \_ -> return ()
474−newSubscriberFan :: forall x k v. (HasSpiderTimeline x, GCompare k) => FanSubscribed x k v -> IO (Subscriber x (DMap k v))
346+newSubscriberFan :: forall x k. (HasSpiderTimeline x, GCompare k) => FanSubscribed x k -> IO (Subscriber x (DMap k Identity))
475−newSubscriberFan subscribed = debugSubscriber ("SubscriberFan " <> showNodeId subscribed) $ Subscriber
347+newSubscriberFan subscribed = return $ Subscriber
476 { subscriberPropagate = \a -> {-# SCC "traverseFan" #-} do
348 { subscriberPropagate = \a -> {-# SCC "traverseFan" #-} do
477 subs <- liftIO $ readIORef $ fanSubscribedSubscribers subscribed
349 subs <- liftIO $ readIORef $ fanSubscribedSubscribers subscribed
478− tracePropagate (Proxy :: Proxy x) $ show (DMap.size subs) <> " keys subscribed, " <> show (DMap.size a) <> " keys firing"
350+ tracePropagate (Proxy :: Proxy x) $ "SubscriberFan" <> showNodeId subscribed <> ": " ++ show (DMap.size subs) ++ " keys subscribed, " ++ show (DMap.size a) ++ " keys firing"
479 liftIO $ writeIORef (fanSubscribedOccurrence subscribed) $ Just a
351 liftIO $ writeIORef (fanSubscribedOccurrence subscribed) $ Just a
480 scheduleClear $ fanSubscribedOccurrence subscribed
352 scheduleClear $ fanSubscribedOccurrence subscribed
481− let f _ (Pair v subsubs) = do
353+ let f _ (Pair (Identity v) subsubs) = do
482 propagate v $ _fanSubscribedChildren_list subsubs
354 propagate v $ _fanSubscribedChildren_list subsubs
483 return $ Constant ()
355 return $ Constant ()
484 _ <- DMap.traverseWithKey f $ DMap.intersectionWithKey (\_ -> Pair) a subs --TODO: Would be nice to have DMap.traverse_
356 _ <- DMap.traverseWithKey f $ DMap.intersectionWithKey (\_ -> Pair) a subs --TODO: Would be nice to have DMap.traverse_
485 return ()
357 return ()
486 , subscriberInvalidateHeight = \old -> do
358 , subscriberInvalidateHeight = \old -> do
359+ when debugInvalidateHeight $ putStrLn $ "invalidateSubscriberHeight: SubscriberFan" <> showNodeId subscribed
487 subscribers <- readIORef $ fanSubscribedSubscribers subscribed
360 subscribers <- readIORef $ fanSubscribedSubscribers subscribed
488− forM_ (DMap.toList subscribers) $ \(_ :=> v) -> WeakBag.traverse_ (_fanSubscribedChildren_list v) $ invalidateSubscriberHeight old
361+ forM_ (DMap.toList subscribers) $ \(_ :=> v) -> WeakBag.traverse (_fanSubscribedChildren_list v) $ invalidateSubscriberHeight old
362+ when debugInvalidateHeight $ putStrLn $ "invalidateSubscriberHeight: SubscriberFan" <> showNodeId subscribed <> " done"
489 , subscriberRecalculateHeight = \new -> do
363 , subscriberRecalculateHeight = \new -> do
364+ when debugInvalidateHeight $ putStrLn $ "recalculateSubscriberHeight: SubscriberFan" <> showNodeId subscribed
490 subscribers <- readIORef $ fanSubscribedSubscribers subscribed
365 subscribers <- readIORef $ fanSubscribedSubscribers subscribed
491− forM_ (DMap.toList subscribers) $ \(_ :=> v) -> WeakBag.traverse_ (_fanSubscribedChildren_list v) $ recalculateSubscriberHeight new
366+ forM_ (DMap.toList subscribers) $ \(_ :=> v) -> WeakBag.traverse (_fanSubscribedChildren_list v) $ recalculateSubscriberHeight new
367+ when debugInvalidateHeight $ putStrLn $ "recalculateSubscriberHeight: SubscriberFan" <> showNodeId subscribed <> " done"
494newSubscriberSwitch :: forall x a. HasSpiderTimeline x => SwitchSubscribed x a -> IO (Subscriber x a)
370newSubscriberSwitch :: forall x a. HasSpiderTimeline x => SwitchSubscribed x a -> IO (Subscriber x a)
495−newSubscriberSwitch subscribed = debugSubscriber ("SubscriberCoincidenceOuter" <> showNodeId subscribed) $ Subscriber
371+newSubscriberSwitch subscribed = return $ Subscriber
496 { subscriberPropagate = \a -> {-# SCC "traverseSwitch" #-} do
372 { subscriberPropagate = \a -> {-# SCC "traverseSwitch" #-} do
373+ tracePropagate (Proxy :: Proxy x) $ "SubscriberSwitch" <> showNodeId subscribed
497 liftIO $ writeIORef (switchSubscribedOccurrence subscribed) $ Just a
374 liftIO $ writeIORef (switchSubscribedOccurrence subscribed) $ Just a
498 scheduleClear $ switchSubscribedOccurrence subscribed
375 scheduleClear $ switchSubscribedOccurrence subscribed
499 propagate a $ switchSubscribedSubscribers subscribed
376 propagate a $ switchSubscribedSubscribers subscribed
500 , subscriberInvalidateHeight = \_ -> do
377 , subscriberInvalidateHeight = \_ -> do
378+ when debugInvalidateHeight $ putStrLn $ "invalidateSubscriberHeight: SubscriberSwitch" <> showNodeId subscribed
501 oldHeight <- readIORef $ switchSubscribedHeight subscribed
379 oldHeight <- readIORef $ switchSubscribedHeight subscribed
502 when (oldHeight /= invalidHeight) $ do
380 when (oldHeight /= invalidHeight) $ do
503 writeIORef (switchSubscribedHeight subscribed) $! invalidHeight
381 writeIORef (switchSubscribedHeight subscribed) $! invalidHeight
504− WeakBag.traverse_ (switchSubscribedSubscribers subscribed) $ invalidateSubscriberHeight oldHeight
382+ WeakBag.traverse (switchSubscribedSubscribers subscribed) $ invalidateSubscriberHeight oldHeight
383+ when debugInvalidateHeight $ putStrLn $ "invalidateSubscriberHeight: SubscriberSwitch" <> showNodeId subscribed <> " done"
384+ , subscriberRecalculateHeight = \new -> do
385+ when debugInvalidateHeight $ putStrLn $ "recalculateSubscriberHeight: SubscriberSwitch" <> showNodeId subscribed
505− , subscriberRecalculateHeight = (`updateSwitchHeight` subscribed)
386+ updateSwitchHeight new subscribed
387+ when debugInvalidateHeight $ putStrLn $ "recalculateSubscriberHeight: SubscriberSwitch" <> showNodeId subscribed <> " done"
508newSubscriberCoincidenceOuter :: forall x b. HasSpiderTimeline x => CoincidenceSubscribed x b -> IO (Subscriber x (Event x b))
390newSubscriberCoincidenceOuter :: forall x b. HasSpiderTimeline x => CoincidenceSubscribed x b -> IO (Subscriber x (Event x b))
509−newSubscriberCoincidenceOuter subscribed = debugSubscriber ("SubscriberCoincidenceOuter" <> showNodeId subscribed) $ Subscriber
391+newSubscriberCoincidenceOuter subscribed = return $ Subscriber
510 { subscriberPropagate = \a -> {-# SCC "traverseCoincidenceOuter" #-} do
392 { subscriberPropagate = \a -> {-# SCC "traverseCoincidenceOuter" #-} do
393+ tracePropagate (Proxy :: Proxy x) $ "SubscriberCoincidenceOuter" <> showNodeId subscribed
511 outerHeight <- liftIO $ readIORef $ coincidenceSubscribedHeight subscribed
394 outerHeight <- liftIO $ readIORef $ coincidenceSubscribedHeight subscribed
512 tracePropagate (Proxy :: Proxy x) $ " outerHeight = " <> show outerHeight
395 tracePropagate (Proxy :: Proxy x) $ " outerHeight = " <> show outerHeight
513 (occ, innerHeight, innerSubd) <- subscribeCoincidenceInner a outerHeight subscribed
396 (occ, innerHeight, innerSubd) <- subscribeCoincidenceInner a outerHeight subscribed
514 tracePropagate (Proxy :: Proxy x) $ " isJust occ = " <> show (isJust occ)
397 tracePropagate (Proxy :: Proxy x) $ " isJust occ = " <> show (isJust occ)
515 tracePropagate (Proxy :: Proxy x) $ " innerHeight = " <> show innerHeight
398 tracePropagate (Proxy :: Proxy x) $ " innerHeight = " <> show innerHeight
517 liftIO $ writeIORef (coincidenceSubscribedInnerParent subscribed) $ Just innerSubd
399 liftIO $ writeIORef (coincidenceSubscribedInnerParent subscribed) $ Just innerSubd
518 scheduleClear $ coincidenceSubscribedInnerParent subscribed
400 scheduleClear $ coincidenceSubscribedInnerParent subscribed
519 case occ of
401 case occ of
520− Nothing ->
402+ Nothing -> do
521 when (innerHeight > outerHeight) $ liftIO $ do -- If the event fires, it will fire at a later height
403 when (innerHeight > outerHeight) $ liftIO $ do -- If the event fires, it will fire at a later height
522 writeIORef (coincidenceSubscribedHeight subscribed) $! innerHeight
404 writeIORef (coincidenceSubscribedHeight subscribed) $! innerHeight
523− WeakBag.traverse_ (coincidenceSubscribedSubscribers subscribed) $ invalidateSubscriberHeight outerHeight
405+ WeakBag.traverse (coincidenceSubscribedSubscribers subscribed) $ invalidateSubscriberHeight outerHeight
524− WeakBag.traverse_ (coincidenceSubscribedSubscribers subscribed) $ recalculateSubscriberHeight innerHeight
406+ WeakBag.traverse (coincidenceSubscribedSubscribers subscribed) $ recalculateSubscriberHeight innerHeight
525 Just o -> do -- Since it's already firing, no need to adjust height
407 Just o -> do -- Since it's already firing, no need to adjust height
526 liftIO $ writeIORef (coincidenceSubscribedOccurrence subscribed) occ
408 liftIO $ writeIORef (coincidenceSubscribedOccurrence subscribed) occ
527 scheduleClear $ coincidenceSubscribedOccurrence subscribed
409 scheduleClear $ coincidenceSubscribedOccurrence subscribed
528 propagate o $ coincidenceSubscribedSubscribers subscribed
410 propagate o $ coincidenceSubscribedSubscribers subscribed
411+ , subscriberInvalidateHeight = \_ -> do
412+ when debugInvalidateHeight $ putStrLn $ "invalidateSubscriberHeight: SubscriberCoincidenceOuter" <> showNodeId subscribed
529− , subscriberInvalidateHeight = \_ -> invalidateCoincidenceHeight subscribed
413+ invalidateCoincidenceHeight subscribed
414+ when debugInvalidateHeight $ putStrLn $ "invalidateSubscriberHeight: SubscriberCoincidenceOuter" <> showNodeId subscribed <> " done"
415+ , subscriberRecalculateHeight = \_ -> do
416+ when debugInvalidateHeight $ putStrLn $ "recalculateSubscriberHeight: SubscriberCoincidenceOuter" <> showNodeId subscribed
530− , subscriberRecalculateHeight = \_ -> recalculateCoincidenceHeight subscribed
417+ recalculateCoincidenceHeight subscribed
418+ when debugInvalidateHeight $ putStrLn $ "recalculateSubscriberHeight: SubscriberCoincidenceOuter" <> showNodeId subscribed <> " done"
533newSubscriberCoincidenceInner :: forall x a. HasSpiderTimeline x => CoincidenceSubscribed x a -> IO (Subscriber x a)
421newSubscriberCoincidenceInner :: forall x a. HasSpiderTimeline x => CoincidenceSubscribed x a -> IO (Subscriber x a)
534−newSubscriberCoincidenceInner subscribed = debugSubscriber ("SubscriberCoincidenceInner" <> showNodeId subscribed) $ Subscriber
422+newSubscriberCoincidenceInner subscribed = return $ Subscriber
535 { subscriberPropagate = \a -> {-# SCC "traverseCoincidenceInner" #-} do
423 { subscriberPropagate = \a -> {-# SCC "traverseCoincidenceInner" #-} do
424+ tracePropagate (Proxy :: Proxy x) $ "SubscriberCoincidenceInner" <> showNodeId subscribed
536 occ <- liftIO $ readIORef $ coincidenceSubscribedOccurrence subscribed
425 occ <- liftIO $ readIORef $ coincidenceSubscribedOccurrence subscribed
537 case occ of
426 case occ of
538 Just _ -> return () -- SubscriberCoincidenceOuter must have already propagated this event
427 Just _ -> return () -- SubscriberCoincidenceOuter must have already propagated this event
@@ -540,8 +429,14 @@ newSubscriberCoincidenceInner subscribed = debugSubscriber ("SubscriberCoinciden
540 liftIO $ writeIORef (coincidenceSubscribedOccurrence subscribed) $ Just a
429 liftIO $ writeIORef (coincidenceSubscribedOccurrence subscribed) $ Just a
541 scheduleClear $ coincidenceSubscribedOccurrence subscribed
430 scheduleClear $ coincidenceSubscribedOccurrence subscribed
542 propagate a $ coincidenceSubscribedSubscribers subscribed
431 propagate a $ coincidenceSubscribedSubscribers subscribed
432+ , subscriberInvalidateHeight = \_ -> do
433+ when debugInvalidateHeight $ putStrLn $ "invalidateSubscriberHeight: SubscriberCoincidenceInner" <> showNodeId subscribed
543− , subscriberInvalidateHeight = \_ -> invalidateCoincidenceHeight subscribed
434+ invalidateCoincidenceHeight subscribed
435+ when debugInvalidateHeight $ putStrLn $ "invalidateSubscriberHeight: SubscriberCoincidenceInner" <> showNodeId subscribed <> " done"
436+ , subscriberRecalculateHeight = \_ -> do
437+ when debugInvalidateHeight $ putStrLn $ "recalculateSubscriberHeight: SubscriberCoincidenceInner" <> showNodeId subscribed
544− , subscriberRecalculateHeight = \_ -> recalculateCoincidenceHeight subscribed
438+ recalculateCoincidenceHeight subscribed
439+ when debugInvalidateHeight $ putStrLn $ "recalculateSubscriberHeight: SubscriberCoincidenceInner" <> showNodeId subscribed <> " done"
547invalidateSubscriberHeight :: Height -> Subscriber x a -> IO ()
442invalidateSubscriberHeight :: Height -> Subscriber x a -> IO ()
@@ -551,18 +446,11 @@ recalculateSubscriberHeight :: Height -> Subscriber x a -> IO ()
551recalculateSubscriberHeight = flip subscriberRecalculateHeight
446recalculateSubscriberHeight = flip subscriberRecalculateHeight
553-- | Propagate everything at the current height
448-- | Propagate everything at the current height
554−propagate :: forall x a. HasSpiderTimeline x => a -> WeakBag (Subscriber x a) -> EventM x ()
449+propagate :: a -> WeakBag (Subscriber x a) -> EventM x ()
555−propagate a subscribers = withIncreasedDepth (Proxy::Proxy x) $
450+propagate a subscribers = withIncreasedDepth $ do
556− -- Note: in the following traversal, we do not visit nodes that are added to the list during our traversal; they are new events, which will necessarily have full information already, so there is no need to traverse them
557− --TODO: Should we check if nodes already have their values before propagating? Maybe we're re-doing work
558− WeakBag.traverse_ subscribers $ \s -> subscriberPropagate s a
560−-- | Propagate everything at the current height
561−propagateFast :: forall x a. HasSpiderTimeline x => a -> FastWeakBag (Subscriber x a) -> EventM x ()
562−propagateFast a subscribers = withIncreasedDepth (Proxy::Proxy x) $
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
451 -- Note: in the following traversal, we do not visit nodes that are added to the list during our traversal; they are new events, which will necessarily have full information already, so there is no need to traverse them
564 --TODO: Should we check if nodes already have their values before propagating? Maybe we're re-doing work
452 --TODO: Should we check if nodes already have their values before propagating? Maybe we're re-doing work
565− FastWeakBag.traverse_ subscribers $ \s -> subscriberPropagate s a
453+ WeakBag.traverse subscribers $ \s -> subscriberPropagate s a
567--------------------------------------------------------------------------------
455--------------------------------------------------------------------------------
568-- EventSubscribed
456-- EventSubscribed
@@ -571,16 +459,11 @@ propagateFast a subscribers = withIncreasedDepth (Proxy::Proxy x) $
571toAny :: a -> Any
459toAny :: a -> Any
572toAny = unsafeCoerce
460toAny = unsafeCoerce
574−-- Why do we use Any here, instead of just giving eventSubscribedRetained an
575−-- existential type? Sadly, GHC does not currently know how to unbox types
576−-- with existentially quantified fields. So instead we just coerce values
577−-- to type Any on the way in. Since we never coerce them back, this is
579data EventSubscribed x = EventSubscribed
462data EventSubscribed x = EventSubscribed
580 { eventSubscribedHeightRef :: {-# UNPACK #-} !(IORef Height)
463 { eventSubscribedHeightRef :: {-# UNPACK #-} !(IORef Height)
581 , eventSubscribedRetained :: {-# NOUNPACK #-} !Any
464 , eventSubscribedRetained :: {-# NOUNPACK #-} !Any
582#ifdef DEBUG_CYCLES
465#ifdef DEBUG_CYCLES
583− , eventSubscribedGetParents :: !(IO [EventSubscribed x]) -- For debugging loops
466+ , eventSubscribedGetParents :: !(IO [Some (EventSubscribed x)]) -- For debugging loops
584 , eventSubscribedHasOwnHeightRef :: !Bool
467 , eventSubscribedHasOwnHeightRef :: !Bool
585 , eventSubscribedWhoCreated :: !(IO [String])
468 , eventSubscribedWhoCreated :: !(IO [String])
@@ -607,23 +490,13 @@ eventSubscribedNever = EventSubscribed
607 , eventSubscribedWhoCreated = return ["never"]
490 , eventSubscribedWhoCreated = return ["never"]
610−eventSubscribedNow :: EventSubscribed x
611−eventSubscribedNow = EventSubscribed
612− { eventSubscribedHeightRef = zeroRef
613− , eventSubscribedRetained = toAny ()
615− , eventSubscribedGetParents = return []
616− , eventSubscribedHasOwnHeightRef = False
617− , eventSubscribedWhoCreated = return ["now"]
621−eventSubscribedFan :: FanSubscribed x k v -> EventSubscribed x
494+eventSubscribedFan :: FanSubscribed x k -> EventSubscribed x
622eventSubscribedFan !subscribed = EventSubscribed
495eventSubscribedFan !subscribed = EventSubscribed
623 { eventSubscribedHeightRef = eventSubscribedHeightRef $ _eventSubscription_subscribed $ fanSubscribedParent subscribed
496 { eventSubscribedHeightRef = eventSubscribedHeightRef $ _eventSubscription_subscribed $ fanSubscribedParent subscribed
624 , eventSubscribedRetained = toAny subscribed
497 , eventSubscribedRetained = toAny subscribed
625#ifdef DEBUG_CYCLES
498#ifdef DEBUG_CYCLES
626− , eventSubscribedGetParents = return [_eventSubscription_subscribed $ fanSubscribedParent subscribed]
499+ , eventSubscribedGetParents = return [Some.This $ _eventSubscription_subscribed $ fanSubscribedParent subscribed]
627 , eventSubscribedHasOwnHeightRef = False
500 , eventSubscribedHasOwnHeightRef = False
628 , eventSubscribedWhoCreated = whoCreatedIORef $ fanSubscribedCachedSubscribed subscribed
501 , eventSubscribedWhoCreated = whoCreatedIORef $ fanSubscribedCachedSubscribed subscribed
@@ -636,7 +509,7 @@ eventSubscribedSwitch !subscribed = EventSubscribed
636#ifdef DEBUG_CYCLES
509#ifdef DEBUG_CYCLES
637 , eventSubscribedGetParents = do
510 , eventSubscribedGetParents = do
638 s <- readIORef $ switchSubscribedCurrentParent subscribed
511 s <- readIORef $ switchSubscribedCurrentParent subscribed
639− return [_eventSubscription_subscribed s]
512+ return [Some.This $ _eventSubscription_subscribed s]
640 , eventSubscribedHasOwnHeightRef = True
513 , eventSubscribedHasOwnHeightRef = True
641 , eventSubscribedWhoCreated = whoCreatedIORef $ switchSubscribedCachedSubscribed subscribed
514 , eventSubscribedWhoCreated = whoCreatedIORef $ switchSubscribedCachedSubscribed subscribed
@@ -649,8 +522,8 @@ eventSubscribedCoincidence !subscribed = EventSubscribed
649#ifdef DEBUG_CYCLES
522#ifdef DEBUG_CYCLES
650 , eventSubscribedGetParents = do
523 , eventSubscribedGetParents = do
651 innerSubscription <- readIORef $ coincidenceSubscribedInnerParent subscribed
524 innerSubscription <- readIORef $ coincidenceSubscribedInnerParent subscribed
652− let outerParent = _eventSubscription_subscribed $ coincidenceSubscribedOuterParent subscribed
525+ let outerParent = Some.This $ _eventSubscription_subscribed $ coincidenceSubscribedOuterParent subscribed
653− innerParents = maybeToList $ innerSubscription
526+ innerParents = maybeToList $ fmap Some.This innerSubscription
654 return $ outerParent : innerParents
527 return $ outerParent : innerParents
655 , eventSubscribedHasOwnHeightRef = True
528 , eventSubscribedHasOwnHeightRef = True
656 , eventSubscribedWhoCreated = whoCreatedIORef $ coincidenceSubscribedCachedSubscribed subscribed
529 , eventSubscribedWhoCreated = whoCreatedIORef $ coincidenceSubscribedCachedSubscribed subscribed
@@ -664,22 +537,34 @@ getEventSubscribedHeight es = readIORef $ eventSubscribedHeightRef es
664whoCreatedEventSubscribed :: EventSubscribed x -> IO [String]
537whoCreatedEventSubscribed :: EventSubscribed x -> IO [String]
665whoCreatedEventSubscribed = eventSubscribedWhoCreated
538whoCreatedEventSubscribed = eventSubscribedWhoCreated
667−walkInvalidHeightParents :: EventSubscribed x -> IO [EventSubscribed x]
540+walkInvalidHeightParents :: EventSubscribed x -> IO [Some (EventSubscribed x)]
668walkInvalidHeightParents s0 = do
541walkInvalidHeightParents s0 = do
669− subscribers <- flip execStateT mempty $ ($ s0) $ fix $ \loop s -> do
542+ subscribers <- flip execStateT mempty $ ($ Some.This s0) $ fix $ \loop (Some.This s) -> do
670 h <- liftIO $ readIORef $ eventSubscribedHeightRef s
543 h <- liftIO $ readIORef $ eventSubscribedHeightRef s
671 when (h == invalidHeight) $ do
544 when (h == invalidHeight) $ do
672 when (eventSubscribedHasOwnHeightRef s) $ liftIO $ writeIORef (eventSubscribedHeightRef s) $! invalidHeightBeingTraversed
545 when (eventSubscribedHasOwnHeightRef s) $ liftIO $ writeIORef (eventSubscribedHeightRef s) $! invalidHeightBeingTraversed
673− modify (s :)
546+ modify (Some.This s :)
674 mapM_ loop =<< liftIO (eventSubscribedGetParents s)
547 mapM_ loop =<< liftIO (eventSubscribedGetParents s)
675− forM_ subscribers $ \s -> writeIORef (eventSubscribedHeightRef s) $! invalidHeight
548+ forM_ subscribers $ \(Some.This s) -> writeIORef (eventSubscribedHeightRef s) $! invalidHeight
676 return subscribers
549 return subscribers
679{-# INLINE subscribeHoldEvent #-}
552{-# INLINE subscribeHoldEvent #-}
680−subscribeHoldEvent :: Hold x p -> Subscriber x p -> EventM x (EventSubscription x, Maybe p)
553+subscribeHoldEvent :: CanSubscribe x m => Hold x p -> Subscriber x p -> m (EventSubscription x, Maybe p)
681subscribeHoldEvent = subscribeAndRead . holdEvent
554subscribeHoldEvent = subscribeAndRead . holdEvent
556+--------------------------------------------------------------------------------
558+--------------------------------------------------------------------------------
560+data EventSubscription x = EventSubscription
561+ { _eventSubscription_unsubscribe :: !(IO ())
562+ , _eventSubscription_subscribed :: {-# UNPACK #-} !(EventSubscribed x)
565+unsubscribe :: EventSubscription x -> IO ()
566+unsubscribe (EventSubscription u _) = u
683--------------------------------------------------------------------------------
568--------------------------------------------------------------------------------
684-- Behavior
569-- Behavior
685--------------------------------------------------------------------------------
570--------------------------------------------------------------------------------
@@ -700,7 +585,7 @@ behaviorPull !p = Behavior $ do
700 val <- liftIO $ readIORef $ pullValue p
585 val <- liftIO $ readIORef $ pullValue p
701 case val of
586 case val of
702 Just subscribed -> do
587 Just subscribed -> do
703− askParentsRef >>= mapM_ (\r -> liftIO $ modifyIORef' r (SomeBehaviorSubscribed (Some (BehaviorSubscribedPull subscribed)) :))
588+ askParentsRef >>= mapM_ (\r -> liftIO $ modifyIORef' r (SomeBehaviorSubscribed (BehaviorSubscribedPull subscribed) :))
704 askInvalidator >>= mapM_ (\wi -> liftIO $ modifyIORef' (pullSubscribedInvalidators subscribed) (wi:))
589 askInvalidator >>= mapM_ (\wi -> liftIO $ modifyIORef' (pullSubscribedInvalidators subscribed) (wi:))
705 liftIO $ touch $ pullSubscribedOwnInvalidator subscribed
590 liftIO $ touch $ pullSubscribedOwnInvalidator subscribed
706 return $ pullSubscribedValue subscribed
591 return $ pullSubscribedValue subscribed
@@ -709,7 +594,7 @@ behaviorPull !p = Behavior $ do
709 wi <- liftIO $ mkWeakPtrWithDebug i "InvalidatorPull"
594 wi <- liftIO $ mkWeakPtrWithDebug i "InvalidatorPull"
710 parentsRef <- liftIO $ newIORef []
595 parentsRef <- liftIO $ newIORef []
711 holdInits <- askBehaviorHoldInits
596 holdInits <- askBehaviorHoldInits
712− a <- liftIO $ runReaderIO (unBehaviorM $ pullCompute p) (Just (wi, parentsRef), holdInits)
597+ a <- liftIO $ runReaderT (unBehaviorM $ pullCompute p) (Just (wi, parentsRef), holdInits)
713 invsRef <- liftIO . newIORef . maybeToList =<< askInvalidator
598 invsRef <- liftIO . newIORef . maybeToList =<< askInvalidator
714 parents <- liftIO $ readIORef parentsRef
599 parents <- liftIO $ readIORef parentsRef
715 let subscribed = PullSubscribed
600 let subscribed = PullSubscribed
@@ -719,7 +604,7 @@ behaviorPull !p = Behavior $ do
719 , pullSubscribedParents = parents
604 , pullSubscribedParents = parents
721 liftIO $ writeIORef (pullValue p) $ Just subscribed
606 liftIO $ writeIORef (pullValue p) $ Just subscribed
722− askParentsRef >>= mapM_ (\r -> liftIO $ modifyIORef' r (SomeBehaviorSubscribed (Some (BehaviorSubscribedPull subscribed)) :))
607+ askParentsRef >>= mapM_ (\r -> liftIO $ modifyIORef' r (SomeBehaviorSubscribed (BehaviorSubscribedPull subscribed) :))
725behaviorDyn :: Patch p => Dyn x p -> Behavior x (PatchTarget p)
610behaviorDyn :: Patch p => Dyn x p -> Behavior x (PatchTarget p)
@@ -730,8 +615,7 @@ readHoldTracked :: Hold x p -> BehaviorM x (PatchTarget p)
730readHoldTracked h = do
615readHoldTracked h = do
731 result <- liftIO $ readIORef $ holdValue h
616 result <- liftIO $ readIORef $ holdValue h
732 askInvalidator >>= mapM_ (\wi -> liftIO $ modifyIORef' (holdInvalidators h) (wi:))
617 askInvalidator >>= mapM_ (\wi -> liftIO $ modifyIORef' (holdInvalidators h) (wi:))
733− askParentsRef >>= mapM_ (\r -> liftIO $ modifyIORef' r (SomeBehaviorSubscribed (Some (BehaviorSubscribedHold h)) :))
618+ askParentsRef >>= mapM_ (\r -> liftIO $ modifyIORef' r (SomeBehaviorSubscribed (BehaviorSubscribedHold h) :))
734− liftIO $ touch h -- Otherwise, if this gets inlined enough, the hold's parent reference may get collected
735 return result
619 return result
737{-# INLINABLE readBehaviorUntracked #-}
621{-# INLINABLE readBehaviorUntracked #-}
@@ -744,46 +628,42 @@ readBehaviorUntracked b = do
744-- Dynamic
628-- Dynamic
745--------------------------------------------------------------------------------
629--------------------------------------------------------------------------------
747−type DynamicS x p = Dynamic x (PatchTarget p) p
749−data Dynamic x target p = Dynamic
631+data Dynamic x p = Dynamic
750− { dynamicCurrent :: !(Behavior x target)
632+ { dynamicCurrent :: !(Behavior x (PatchTarget p))
751− , dynamicUpdated :: Event x p -- This must be lazy; see the comment on holdEvent --TODO: Would this let us eliminate `Dyn`?
633+ , dynamicUpdated :: !(Event x p)
754−deriving instance (HasSpiderTimeline x) => Functor (Dynamic x target)
759−dynamicHold :: Hold x p -> DynamicS x p
636+dynamicHold :: HasSpiderTimeline x => Hold x p -> Dynamic x p
760dynamicHold !h = Dynamic
637dynamicHold !h = Dynamic
761 { dynamicCurrent = behaviorHold h
638 { dynamicCurrent = behaviorHold h
762 , dynamicUpdated = eventHold h
639 , dynamicUpdated = eventHold h
765−dynamicHoldIdentity :: Hold x (Identity a) -> DynamicS x (Identity a)
642+dynamicHoldIdentity :: HasSpiderTimeline x => Hold x (Identity a) -> Dynamic x (Identity a)
766dynamicHoldIdentity = dynamicHold
643dynamicHoldIdentity = dynamicHold
768−dynamicConst :: PatchTarget p -> DynamicS x p
645+dynamicConst :: PatchTarget p -> Dynamic x p
769dynamicConst !a = Dynamic
646dynamicConst !a = Dynamic
770 { dynamicCurrent = behaviorConst a
647 { dynamicCurrent = behaviorConst a
771 , dynamicUpdated = eventNever
648 , dynamicUpdated = eventNever
774−dynamicDyn :: (HasSpiderTimeline x, Patch p) => Dyn x p -> DynamicS x p
651+dynamicDyn :: (HasSpiderTimeline x, Patch p) => Dyn x p -> Dynamic x p
775dynamicDyn !d = Dynamic
652dynamicDyn !d = Dynamic
776 { dynamicCurrent = behaviorDyn d
653 { dynamicCurrent = behaviorDyn d
777 , dynamicUpdated = eventDyn d
654 , dynamicUpdated = eventDyn d
780−dynamicDynIdentity :: HasSpiderTimeline x => Dyn x (Identity a) -> DynamicS x (Identity a)
657+dynamicDynIdentity :: HasSpiderTimeline x => Dyn x (Identity a) -> Dynamic x (Identity a)
781dynamicDynIdentity = dynamicDyn
658dynamicDynIdentity = dynamicDyn
783--------------------------------------------------------------------------------
660--------------------------------------------------------------------------------
784-- Combinators
661-- Combinators
785--------------------------------------------------------------------------------
662--------------------------------------------------------------------------------
664+--TODO: Figure out why certain things are not 'representational', then make them
665+--representational so we can use coerce
787--type role Hold representational
667--type role Hold representational
788data Hold x p
668data Hold x p
789 = Hold { holdValue :: !(IORef (PatchTarget p))
669 = Hold { holdValue :: !(IORef (PatchTarget p))
@@ -795,46 +675,33 @@ data Hold x p
798−-- | A statically allocated 'SpiderTimeline'
801{-# NOINLINE globalSpiderTimelineEnv #-}
678{-# NOINLINE globalSpiderTimelineEnv #-}
802globalSpiderTimelineEnv :: SpiderTimelineEnv Global
679globalSpiderTimelineEnv :: SpiderTimelineEnv Global
803−globalSpiderTimelineEnv = unsafePerformIO unsafeNewSpiderTimelineEnv
680+!globalSpiderTimelineEnv = unsafePerformIO unsafeNewSpiderTimelineEnv
805-- | Stores all global data relevant to a particular Spider timeline; only one
682-- | Stores all global data relevant to a particular Spider timeline; only one
806-- value should exist for each type @x@
683-- value should exist for each type @x@
807−newtype SpiderTimelineEnv x = STE {unSTE :: SpiderTimelineEnv' x}
808−-- We implement SpiderTimelineEnv with a newtype wrapper so
809−-- we can get the coercions we want safely.
810−type role SpiderTimelineEnv nominal
812−data SpiderTimelineEnv' x = SpiderTimelineEnv
684+data SpiderTimelineEnv x = SpiderTimelineEnv
813 { _spiderTimeline_lock :: {-# UNPACK #-} !(MVar ())
685 { _spiderTimeline_lock :: {-# UNPACK #-} !(MVar ())
814 , _spiderTimeline_eventEnv :: {-# UNPACK #-} !(EventEnv x)
686 , _spiderTimeline_eventEnv :: {-# UNPACK #-} !(EventEnv x)
815#ifdef DEBUG
687#ifdef DEBUG
816 , _spiderTimeline_depth :: {-# UNPACK #-} !(IORef Int)
688 , _spiderTimeline_depth :: {-# UNPACK #-} !(IORef Int)
819−type role SpiderTimelineEnv' phantom
691+type role SpiderTimelineEnv nominal
821−instance Eq (SpiderTimelineEnv x) where
822− _ == _ = True -- Since only one exists of each type
824instance GEq SpiderTimelineEnv where
693instance GEq SpiderTimelineEnv where
825− a `geq` b = if _spiderTimeline_lock (unSTE a) == _spiderTimeline_lock (unSTE b)
694+ a `geq` b = if _spiderTimeline_lock a == _spiderTimeline_lock b
826 then Just $ unsafeCoerce Refl -- This unsafeCoerce is safe because the same SpiderTimelineEnv can't have two different 'x' arguments
695 then Just $ unsafeCoerce Refl -- This unsafeCoerce is safe because the same SpiderTimelineEnv can't have two different 'x' arguments
827 else Nothing
696 else Nothing
829data EventEnv x
698data EventEnv x
830 = EventEnv { eventEnvAssignments :: !(IORef [SomeAssignment x]) -- Needed for Subscribe
699 = EventEnv { eventEnvAssignments :: !(IORef [SomeAssignment x]) -- Needed for Subscribe
831 , eventEnvHoldInits :: !(IORef [SomeHoldInit x]) -- Needed for Subscribe
700 , eventEnvHoldInits :: !(IORef [SomeHoldInit x]) -- Needed for Subscribe
832− , eventEnvDynInits :: !(IORef [SomeDynInit x])
833 , eventEnvMergeUpdates :: !(IORef [SomeMergeUpdate x])
701 , eventEnvMergeUpdates :: !(IORef [SomeMergeUpdate x])
834 , eventEnvMergeInits :: !(IORef [SomeMergeInit x]) -- Needed for Subscribe
702 , eventEnvMergeInits :: !(IORef [SomeMergeInit x]) -- Needed for Subscribe
835− , eventEnvClears :: !(IORef [Some Clear]) -- Needed for Subscribe
703+ , eventEnvClears :: !(IORef [SomeClear]) -- Needed for Subscribe
836− , eventEnvIntClears :: !(IORef [Some IntClear])
837− , eventEnvRootClears :: !(IORef [Some RootClear])
704+ , eventEnvRootClears :: !(IORef [SomeRootClear])
838 , eventEnvCurrentHeight :: !(IORef Height) -- Needed for Subscribe
705 , eventEnvCurrentHeight :: !(IORef Height) -- Needed for Subscribe
839 , eventEnvResetCoincidences :: !(IORef [SomeResetCoincidence x]) -- Needed for Subscribe
706 , eventEnvResetCoincidences :: !(IORef [SomeResetCoincidence x]) -- Needed for Subscribe
840 , eventEnvDelayedMerges :: !(IORef (IntMap [EventM x ()]))
707 , eventEnvDelayedMerges :: !(IORef (IntMap [EventM x ()]))
@@ -845,7 +712,7 @@ runEventM :: EventM x a -> IO a
845runEventM = unEventM
712runEventM = unEventM
847asksEventEnv :: forall x a. HasSpiderTimeline x => (EventEnv x -> a) -> EventM x a
714asksEventEnv :: forall x a. HasSpiderTimeline x => (EventEnv x -> a) -> EventM x a
848−asksEventEnv f = return $ f $ _spiderTimeline_eventEnv (unSTE (spiderTimeline :: SpiderTimelineEnv x))
715+asksEventEnv f = return $ f $ _spiderTimeline_eventEnv (spiderTimeline :: SpiderTimelineEnv x)
850class MonadIO m => Defer a m where
717class MonadIO m => Defer a m where
851 getDeferralQueue :: m (IORef [a])
718 getDeferralQueue :: m (IORef [a])
@@ -864,10 +731,6 @@ instance HasSpiderTimeline x => Defer (SomeHoldInit x) (EventM x) where
864 {-# INLINE getDeferralQueue #-}
731 {-# INLINE getDeferralQueue #-}
865 getDeferralQueue = asksEventEnv eventEnvHoldInits
732 getDeferralQueue = asksEventEnv eventEnvHoldInits
867−instance HasSpiderTimeline x => Defer (SomeDynInit x) (EventM x) where
868− {-# INLINE getDeferralQueue #-}
869− getDeferralQueue = asksEventEnv eventEnvDynInits
871instance Defer (SomeHoldInit x) (BehaviorM x) where
734instance Defer (SomeHoldInit x) (BehaviorM x) where
872 {-# INLINE getDeferralQueue #-}
735 {-# INLINE getDeferralQueue #-}
873 getDeferralQueue = BehaviorM $ asks snd
736 getDeferralQueue = BehaviorM $ asks snd
@@ -894,7 +757,11 @@ instance HasSpiderTimeline x => HasCurrentHeight x (EventM x) where
894 delayedRef <- asksEventEnv eventEnvDelayedMerges
757 delayedRef <- asksEventEnv eventEnvDelayedMerges
895 liftIO $ modifyIORef' delayedRef $ IntMap.insertWith (++) (unHeight height) [subscribed]
758 liftIO $ modifyIORef' delayedRef $ IntMap.insertWith (++) (unHeight height) [subscribed]
760+#ifdef SPECIALIZE_TO_SPIDERTIMELINE_GLOBAL
761+class x ~ Global => HasSpiderTimeline x where
897class HasSpiderTimeline x where
763class HasSpiderTimeline x where
898 -- | Retrieve the current SpiderTimelineEnv
765 -- | Retrieve the current SpiderTimelineEnv
899 spiderTimeline :: SpiderTimelineEnv x
766 spiderTimeline :: SpiderTimelineEnv x
@@ -906,35 +773,28 @@ putCurrentHeight h = do
906 heightRef <- asksEventEnv eventEnvCurrentHeight
773 heightRef <- asksEventEnv eventEnvCurrentHeight
907 liftIO $ writeIORef heightRef $! h
774 liftIO $ writeIORef heightRef $! h
909−instance HasSpiderTimeline x => Defer (Some Clear) (EventM x) where
776+instance HasSpiderTimeline x => Defer SomeClear (EventM x) where
910 {-# INLINE getDeferralQueue #-}
777 {-# INLINE getDeferralQueue #-}
911 getDeferralQueue = asksEventEnv eventEnvClears
778 getDeferralQueue = asksEventEnv eventEnvClears
913{-# INLINE scheduleClear #-}
780{-# INLINE scheduleClear #-}
914−scheduleClear :: Defer (Some Clear) m => IORef (Maybe a) -> m ()
781+scheduleClear :: Defer SomeClear m => IORef (Maybe a) -> m ()
915−scheduleClear r = defer $ Some $ Clear r
782+scheduleClear r = defer $ SomeClear r
917−instance HasSpiderTimeline x => Defer (Some IntClear) (EventM x) where
918− {-# INLINE getDeferralQueue #-}
919− getDeferralQueue = asksEventEnv eventEnvIntClears
921−{-# INLINE scheduleIntClear #-}
922−scheduleIntClear :: Defer (Some IntClear) m => IORef (IntMap a) -> m ()
923−scheduleIntClear r = defer $ Some $ IntClear r
925−instance HasSpiderTimeline x => Defer (Some RootClear) (EventM x) where
784+instance HasSpiderTimeline x => Defer SomeRootClear (EventM x) where
926 {-# INLINE getDeferralQueue #-}
785 {-# INLINE getDeferralQueue #-}
927 getDeferralQueue = asksEventEnv eventEnvRootClears
786 getDeferralQueue = asksEventEnv eventEnvRootClears
929{-# INLINE scheduleRootClear #-}
788{-# INLINE scheduleRootClear #-}
930−scheduleRootClear :: Defer (Some RootClear) m => IORef (DMap k Identity) -> m ()
789+scheduleRootClear :: Defer SomeRootClear m => IORef (DMap k Identity) -> m ()
931−scheduleRootClear r = defer $ Some $ RootClear r
790+scheduleRootClear r = defer $ SomeRootClear r
933instance HasSpiderTimeline x => Defer (SomeResetCoincidence x) (EventM x) where
792instance HasSpiderTimeline x => Defer (SomeResetCoincidence x) (EventM x) where
934 {-# INLINE getDeferralQueue #-}
793 {-# INLINE getDeferralQueue #-}
935 getDeferralQueue = asksEventEnv eventEnvResetCoincidences
794 getDeferralQueue = asksEventEnv eventEnvResetCoincidences
937-- Note: hold cannot examine its event until after the phase is over
796-- Note: hold cannot examine its event until after the phase is over
797+{- SPECIALIZE hold :: (HasSpiderTimeline x, Patch p) => PatchTarget p -> Event x p -> EventM x (Hold x p) #-}
938{-# INLINE [1] hold #-}
798{-# INLINE [1] hold #-}
939hold :: (Patch p, Defer (SomeHoldInit x) m) => PatchTarget p -> Event x p -> m (Hold x p)
799hold :: (Patch p, Defer (SomeHoldInit x) m) => PatchTarget p -> Event x p -> m (Hold x p)
940hold v0 e = do
800hold v0 e = do
@@ -957,7 +817,7 @@ hold v0 e = do
959{-# INLINE getHoldEventSubscription #-}
819{-# INLINE getHoldEventSubscription #-}
960−getHoldEventSubscription :: forall p x. (HasSpiderTimeline x, Patch p) => Hold x p -> EventM x (EventSubscription x)
820+getHoldEventSubscription :: forall m p x. (Defer (SomeAssignment x) m, Defer (SomeHoldInit x) m, Defer SomeClear m, Patch p, HasCurrentHeight x m, Defer (SomeMergeInit x) m, Defer (SomeResetCoincidence x) m, HasSpiderTimeline x, m ~ EventM x) => Hold x p -> m (EventSubscription x)
961getHoldEventSubscription h = do
821getHoldEventSubscription h = do
962 ep <- liftIO $ readIORef $ holdParent h
822 ep <- liftIO $ readIORef $ holdParent h
963 case ep of
823 case ep of
@@ -983,9 +843,9 @@ getHoldEventSubscription h = do
984type BehaviorEnv x = (Maybe (Weak (Invalidator x), IORef [SomeBehaviorSubscribed x]), IORef [SomeHoldInit x])
844type BehaviorEnv x = (Maybe (Weak (Invalidator x), IORef [SomeBehaviorSubscribed x]), IORef [SomeHoldInit x])
846+--type role BehaviorM representational
986-- BehaviorM can sample behaviors
847-- BehaviorM can sample behaviors
987−newtype BehaviorM x a = BehaviorM { unBehaviorM :: ReaderIO (BehaviorEnv x) a }
848+newtype BehaviorM x a = BehaviorM { unBehaviorM :: ReaderT (BehaviorEnv x) IO a } deriving (Functor, Applicative, MonadIO, MonadFix)
988− deriving (Functor, Applicative, MonadIO, MonadFix, MonadReader (BehaviorEnv x))
990instance Monad (BehaviorM x) where
850instance Monad (BehaviorM x) where
991 {-# INLINE (>>=) #-}
851 {-# INLINE (>>=) #-}
@@ -994,16 +854,14 @@ instance Monad (BehaviorM x) where
994 BehaviorM x >> BehaviorM y = BehaviorM $ x >> y
854 BehaviorM x >> BehaviorM y = BehaviorM $ x >> y
995 {-# INLINE return #-}
855 {-# INLINE return #-}
996 return x = BehaviorM $ return x
856 return x = BehaviorM $ return x
997−#if !MIN_VERSION_base(4,13,0)
998 {-# INLINE fail #-}
857 {-# INLINE fail #-}
999 fail s = BehaviorM $ fail s
858 fail s = BehaviorM $ fail s
1002data BehaviorSubscribed x a
860data BehaviorSubscribed x a
1003 = forall p. BehaviorSubscribedHold (Hold x p)
861 = forall p. BehaviorSubscribedHold (Hold x p)
1004 | BehaviorSubscribedPull (PullSubscribed x a)
862 | BehaviorSubscribedPull (PullSubscribed x a)
1006−newtype SomeBehaviorSubscribed x = SomeBehaviorSubscribed (Some (BehaviorSubscribed x))
864+data SomeBehaviorSubscribed x = forall a. SomeBehaviorSubscribed (BehaviorSubscribed x a)
1008--type role PullSubscribed representational
866--type role PullSubscribed representational
1009data PullSubscribed x a
867data PullSubscribed x a
@@ -1038,7 +896,7 @@ data RootSubscribed x a = forall k. GCompare k => RootSubscribed
1041−data Root x k
899+data Root x (k :: * -> *)
1042 = Root { rootOccurrence :: !(IORef (DMap k Identity)) -- The currently-firing occurrence of this event
900 = Root { rootOccurrence :: !(IORef (DMap k Identity)) -- The currently-firing occurrence of this event
1043 , rootSubscribed :: !(IORef (DMap k (RootSubscribed x)))
901 , rootSubscribed :: !(IORef (DMap k (RootSubscribed x)))
1044 , rootInit :: !(forall a. k a -> RootTrigger x a -> IO (IO ()))
902 , rootInit :: !(forall a. k a -> RootTrigger x a -> IO (IO ()))
@@ -1046,8 +904,6 @@ data Root x k
1047data SomeHoldInit x = forall p. Patch p => SomeHoldInit !(Hold x p)
905data SomeHoldInit x = forall p. Patch p => SomeHoldInit !(Hold x p)
1049−data SomeDynInit x = forall p. Patch p => SomeDynInit !(Dyn x p)
1051data SomeMergeUpdate x = SomeMergeUpdate
907data SomeMergeUpdate x = SomeMergeUpdate
1052 { _someMergeUpdate_update :: !(EventM x [EventSubscription x])
908 { _someMergeUpdate_update :: !(EventM x [EventSubscription x])
1053 , _someMergeUpdate_invalidateHeight :: !(IO ())
909 , _someMergeUpdate_invalidateHeight :: !(IO ())
@@ -1057,14 +913,18 @@ data SomeMergeUpdate x = SomeMergeUpdate
1057newtype SomeMergeInit x = SomeMergeInit { unSomeMergeInit :: EventM x () }
913newtype SomeMergeInit x = SomeMergeInit { unSomeMergeInit :: EventM x () }
1059-- EventM can do everything BehaviorM can, plus create holds
915-- EventM can do everything BehaviorM can, plus create holds
1060−newtype EventM x a = EventM { unEventM :: IO a } deriving (Functor, Applicative, Monad, MonadIO, MonadFix, MonadException, MonadAsyncException)
916+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
1062−newtype MergeSubscribedParent x a = MergeSubscribedParent { unMergeSubscribedParent :: EventSubscription x }
918+newtype ComputeM x a = ComputeM (ReaderT (IORef [SomeHoldInit x]) IO a) deriving (Functor, Applicative, Monad, MonadIO, MonadFix)
1064−data MergeSubscribedParentWithMove x k a = MergeSubscribedParentWithMove
920+instance Defer (SomeHoldInit x) (ComputeM x) where
1065− { _mergeSubscribedParentWithMove_subscription :: !(EventSubscription x)
921+ getDeferralQueue = ComputeM ask
1066− , _mergeSubscribedParentWithMove_key :: !(IORef (k a))
922+
1067− }
923+{-# INLINABLE runComputeM #-}
924+runComputeM :: Defer (SomeHoldInit x) m => ComputeM x a -> m a
925+runComputeM (ComputeM a) = liftIO . runReaderT a =<< getDeferralQueue
927+newtype MergeSubscribedParent x a = MergeSubscribedParent { unMergeSubscribedParent :: EventSubscription x }
1069data HeightBag = HeightBag
929data HeightBag = HeightBag
1070 { _heightBag_size :: {-# UNPACK #-} !Int
930 { _heightBag_size :: {-# UNPACK #-} !Int
@@ -1082,8 +942,7 @@ heightBagFromList :: [Height] -> HeightBag
1082heightBagFromList heights = heightBagVerify $ foldl' (flip heightBagAdd) heightBagEmpty heights
942heightBagFromList heights = heightBagVerify $ foldl' (flip heightBagAdd) heightBagEmpty heights
1084heightBagAdd :: Height -> HeightBag -> HeightBag
944heightBagAdd :: Height -> HeightBag -> HeightBag
1085−heightBagAdd (Height h) (HeightBag s c) = heightBagVerify $ HeightBag (succ s) $
945+heightBagAdd (Height h) (HeightBag s c) = heightBagVerify $ HeightBag (succ s) $ IntMap.insertWithKey (\_ _ old -> succ old) h 0 c
1086− IntMap.insertWithKey (\_ _ old -> succ old) h 0 c
1088heightBagRemove :: Height -> HeightBag -> HeightBag
947heightBagRemove :: Height -> HeightBag -> HeightBag
1089heightBagRemove (Height h) b@(HeightBag s c) = heightBagVerify $ case IntMap.lookup h c of
948heightBagRemove (Height h) b@(HeightBag s c) = heightBagVerify $ case IntMap.lookup h c of
@@ -1092,13 +951,6 @@ heightBagRemove (Height h) b@(HeightBag s c) = heightBagVerify $ case IntMap.loo
1092 0 -> IntMap.delete h c
951 0 -> IntMap.delete h c
1093 _ -> IntMap.insert h (pred old) c
952 _ -> IntMap.insert h (pred old) c
1095−heightBagRemoveMaybe :: Height -> HeightBag -> Maybe HeightBag
1096−heightBagRemoveMaybe (Height h) b@(HeightBag s c) = heightBagVerify . removed <$> IntMap.lookup h c where
1097− removed old = HeightBag (pred s) $ case old of
1098− 0 -> IntMap.delete h c
1099− _ -> IntMap.insert h (pred old) c
1102heightBagMax :: HeightBag -> Height
954heightBagMax :: HeightBag -> Height
1103heightBagMax (HeightBag _ c) = case IntMap.maxViewWithKey c of
955heightBagMax (HeightBag _ c) = case IntMap.maxViewWithKey c of
1104 Just ((h, _), _) -> Height h
956 Just ((h, _), _) -> Height h
@@ -1116,25 +968,25 @@ heightBagVerify b@(HeightBag s c) = if
1116heightBagVerify = id
968heightBagVerify = id
1119−data FanSubscribedChildren x k v a = FanSubscribedChildren
971+data FanSubscribedChildren (x :: *) k a = FanSubscribedChildren
1120− { _fanSubscribedChildren_list :: !(WeakBag (Subscriber x (v a)))
972+ { _fanSubscribedChildren_list :: !(WeakBag (Subscriber x a))
1121− , _fanSubscribedChildren_self :: {-# NOUNPACK #-} !(k a, FanSubscribed x k v)
973+ , _fanSubscribedChildren_self :: {-# NOUNPACK #-} !(k a, FanSubscribed x k)
1122− , _fanSubscribedChildren_weakSelf :: !(IORef (Weak (k a, FanSubscribed x k v)))
974+ , _fanSubscribedChildren_weakSelf :: !(IORef (Weak (k a, FanSubscribed x k)))
1125−data FanSubscribed x k v
977+data FanSubscribed (x :: *) k
1126− = FanSubscribed { fanSubscribedCachedSubscribed :: !(IORef (Maybe (FanSubscribed x k v)))
978+ = FanSubscribed { fanSubscribedCachedSubscribed :: !(IORef (Maybe (FanSubscribed x k)))
1127− , fanSubscribedOccurrence :: !(IORef (Maybe (DMap k v)))
979+ , fanSubscribedOccurrence :: !(IORef (Maybe (DMap k Identity)))
1128− , fanSubscribedSubscribers :: !(IORef (DMap k (FanSubscribedChildren x k v))) -- This DMap should never be empty
980+ , fanSubscribedSubscribers :: !(IORef (DMap k (FanSubscribedChildren x k))) -- This DMap should never be empty
1129 , fanSubscribedParent :: !(EventSubscription x)
981 , fanSubscribedParent :: !(EventSubscription x)
1130#ifdef DEBUG_NODEIDS
982#ifdef DEBUG_NODEIDS
1131 , fanSubscribedNodeId :: Int
983 , fanSubscribedNodeId :: Int
1135−data Fan x k v
987+data Fan x k
1136− = Fan { fanParent :: !(Event x (DMap k v))
988+ = Fan { fanParent :: !(Event x (DMap k Identity))
1137− , fanSubscribed :: !(IORef (Maybe (FanSubscribed x k v)))
989+ , fanSubscribed :: !(IORef (Maybe (FanSubscribed x k)))
1140data SwitchSubscribed x a
992data SwitchSubscribed x a
@@ -1158,9 +1010,7 @@ data Switch x a
1158 , switchSubscribed :: !(IORef (Maybe (SwitchSubscribed x a)))
1010 , switchSubscribed :: !(IORef (Maybe (SwitchSubscribed x a)))
1161−#ifdef USE_TEMPLATE_HASKELL
1162{-# ANN CoincidenceSubscribed "HLint: ignore Redundant bracket" #-}
1013{-# ANN CoincidenceSubscribed "HLint: ignore Redundant bracket" #-}
1164data CoincidenceSubscribed x a
1014data CoincidenceSubscribed x a
1165 = CoincidenceSubscribed { coincidenceSubscribedCachedSubscribed :: !(IORef (Maybe (CoincidenceSubscribed x a)))
1015 = CoincidenceSubscribed { coincidenceSubscribedCachedSubscribed :: !(IORef (Maybe (CoincidenceSubscribed x a)))
1166 , coincidenceSubscribedOccurrence :: !(IORef (Maybe a))
1016 , coincidenceSubscribedOccurrence :: !(IORef (Maybe a))
@@ -1188,35 +1038,20 @@ newInvalidatorSwitch subd = return $! InvalidatorSwitch subd
1188newInvalidatorPull :: Pull x a -> IO (Invalidator x)
1038newInvalidatorPull :: Pull x a -> IO (Invalidator x)
1189newInvalidatorPull p = return $! InvalidatorPull p
1039newInvalidatorPull p = return $! InvalidatorPull p
1191−instance HasSpiderTimeline x => Filterable (Event x) where
1041+instance HasSpiderTimeline x => R.FunctorMaybe (Event x) where
1192− mapMaybe f = push $ return . f
1042+ fmapMaybe f = push $ return . f
1194instance HasSpiderTimeline x => Align (Event x) where
1044instance HasSpiderTimeline x => Align (Event x) where
1195 nil = eventNever
1045 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 $
1046+ align ea eb = R.fmapMaybe R.dmapToThese $ merge $ dynamicConst $ DMap.fromList [R.LeftTag :=> ea, R.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)
1048+newtype Dyn x p = Dyn { unDyn :: IORef (Either (BehaviorM x (PatchTarget p), Event x p) (Hold x p)) }
1210− | BuildDyn !(EventM x (PatchTarget p), Event x p)
1211− | HoldDyn !(Hold x p)
1213−newtype Dyn (x :: Type) p = Dyn { unDyn :: IORef (DynType x p) }
1215−newMapDyn :: HasSpiderTimeline x => (a -> b) -> DynamicS x (Identity a) -> DynamicS x (Identity b)
1050+newMapDyn :: HasSpiderTimeline x => (a -> b) -> Dynamic x (Identity a) -> Dynamic x (Identity b)
1216−newMapDyn f d = dynamicDynIdentity $ unsafeBuildDynamic (fmap f $ readBehaviorTracked $ dynamicCurrent d) (Identity . f . runIdentity <$> dynamicUpdated d)
1051+newMapDyn f d = dynamicDynIdentity $ unsafeDyn (fmap f $ readBehaviorTracked $ dynamicCurrent d) (Identity . f . runIdentity <$> dynamicUpdated d)
1218--TODO: Avoid the duplication between this and R.zipDynWith
1053--TODO: Avoid the duplication between this and R.zipDynWith
1219−zipDynWith :: HasSpiderTimeline x => (a -> b -> c) -> DynamicS x (Identity a) -> DynamicS x (Identity b) -> DynamicS x (Identity c)
1054+zipDynWith :: HasSpiderTimeline x => (a -> b -> c) -> Dynamic x (Identity a) -> Dynamic x (Identity b) -> Dynamic x (Identity c)
1220zipDynWith f da db =
1055zipDynWith f da db =
1221 let eab = align (dynamicUpdated da) (dynamicUpdated db)
1056 let eab = align (dynamicUpdated da) (dynamicUpdated db)
1222 ec = flip push eab $ \o -> do
1057 ec = flip push eab $ \o -> do
@@ -1229,22 +1064,28 @@ zipDynWith f da db =
1229 return (a, b)
1064 return (a, b)
1230 These (Identity a) (Identity b) -> return (a, b)
1065 These (Identity a) (Identity b) -> return (a, b)
1231 return $ Just $ Identity $ f a b
1066 return $ Just $ Identity $ f a b
1232− in dynamicDynIdentity $ unsafeBuildDynamic (f <$> readBehaviorUntracked (dynamicCurrent da) <*> readBehaviorUntracked (dynamicCurrent db)) ec
1067+ in dynamicDynIdentity $ unsafeDyn (f <$> readBehaviorUntracked (dynamicCurrent da) <*> readBehaviorUntracked (dynamicCurrent db)) ec
1234−buildDynamic :: (Defer (SomeDynInit x) m, Patch p) => EventM x (PatchTarget p) -> Event x p -> m (Dyn x p)
1069+unsafeDyn :: BehaviorM x (PatchTarget p) -> Event x p -> Dyn x p
1235−buildDynamic readV0 v' = do
1070+unsafeDyn readV0 v' = Dyn $ unsafeNewIORef x $ Left x
1236− result <- liftIO $ newIORef $ BuildDyn (readV0, v')
1071+ where x = (readV0, v')
1237− let !d = Dyn result
1238− defer $ SomeDynInit d
1241−unsafeBuildDynamic :: BehaviorM x (PatchTarget p) -> Event x p -> Dyn x p
1073+newJoinDyn :: HasSpiderTimeline x => Dynamic x (Identity (Dynamic x (Identity a))) -> Dyn x (Identity a)
1242−unsafeBuildDynamic readV0 v' =
1074+newJoinDyn d =
1243− Dyn $ unsafePerformIO $ newIORef $ UnsafeDyn (readV0, v')
1075+ let readV0 = readBehaviorTracked . dynamicCurrent =<< readBehaviorTracked (dynamicCurrent d)
1076+ eOuter = push (fmap (Just . Identity) . readBehaviorUntracked . dynamicCurrent . runIdentity) $ dynamicUpdated d
1077+ eInner = switch $ dynamicUpdated <$> dynamicCurrent d
1078+ eBoth = coincidence $ dynamicUpdated . runIdentity <$> dynamicUpdated d
1079+ v' = unSpiderEvent $ R.leftmost $ map SpiderEvent [eBoth, eOuter, eInner]
1080+ in unsafeDyn readV0 v'
1245-- ResultM can read behaviors and events
1082-- ResultM can read behaviors and events
1246type ResultM = EventM
1083type ResultM = EventM
1085+{-# NOINLINE unsafeNewIORef #-}
1086+unsafeNewIORef :: a -> b -> IORef b
1087+unsafeNewIORef _ b = unsafePerformIO $ newIORef b
1248instance HasSpiderTimeline x => Functor (Event x) where
1089instance HasSpiderTimeline x => Functor (Event x) where
1249 fmap f = push $ return . Just . f
1090 fmap f = push $ return . Just . f
@@ -1257,42 +1098,33 @@ push f e = cacheEvent (pushCheap f e)
1258{-# INLINABLE pull #-}
1099{-# INLINABLE pull #-}
1259pull :: BehaviorM x a -> Behavior x a
1100pull :: BehaviorM x a -> Behavior x a
1260−pull a = unsafePerformIO $ do
1261− ref <- newIORef Nothing
1262−#ifdef DEBUG_NODEIDS
1265− pure $ behaviorPull $ Pull
1101+pull a = behaviorPull $ Pull
1266− { pullCompute = a
1102+ { pullCompute = a
1267− , pullValue = ref
1103+ , pullValue = unsafeNewIORef a Nothing
1268#ifdef DEBUG_NODEIDS
1104#ifdef DEBUG_NODEIDS
1269− , pullNodeId = nid
1105+ , pullNodeId = unsafeNodeId a
1273{-# INLINABLE switch #-}
1109{-# INLINABLE switch #-}
1274switch :: HasSpiderTimeline x => Behavior x (Event x a) -> Event x a
1110switch :: HasSpiderTimeline x => Behavior x (Event x a) -> Event x a
1275−switch a = unsafePerformIO $ do
1276− ref <- newIORef Nothing
1277− pure $ eventSwitch $ Switch
1111+switch a = eventSwitch $ Switch
1278− { switchParent = a
1112+ { switchParent = a
1279− , switchSubscribed = ref
1113+ , switchSubscribed = unsafeNewIORef a Nothing
1282coincidence :: HasSpiderTimeline x => Event x (Event x a) -> Event x a
1116coincidence :: HasSpiderTimeline x => Event x (Event x a) -> Event x a
1283−coincidence a = unsafePerformIO $ do
1284− ref <- newIORef Nothing
1285− pure $ eventCoincidence $ Coincidence
1117+coincidence a = eventCoincidence $ Coincidence
1286− { coincidenceParent = a
1118+ { coincidenceParent = a
1287− , coincidenceSubscribed = ref
1119+ , coincidenceSubscribed = unsafeNewIORef a Nothing
1290-- Propagate the given event occurrence; before cleaning up, run the given action, which may read the state of events and behaviors
1122-- Propagate the given event occurrence; before cleaning up, run the given action, which may read the state of events and behaviors
1291run :: forall x b. HasSpiderTimeline x => [DSum (RootTrigger x) Identity] -> ResultM x b -> SpiderHost x b
1123run :: forall x b. HasSpiderTimeline x => [DSum (RootTrigger x) Identity] -> ResultM x b -> SpiderHost x b
1292run roots after = do
1124run roots after = do
1293 tracePropagate (Proxy :: Proxy x) $ "Running an event frame with " <> show (length roots) <> " events"
1125 tracePropagate (Proxy :: Proxy x) $ "Running an event frame with " <> show (length roots) <> " events"
1294− let t = spiderTimeline :: SpiderTimelineEnv x
1126+ t <- SpiderHost ask
1295− result <- SpiderHost $ withMVar (_spiderTimeline_lock (unSTE t)) $ \_ -> unSpiderHost $ runFrame $ do
1127+ result <- SpiderHost $ lift $ withMVar (_spiderTimeline_lock t) $ \_ -> flip runReaderT t $ unSpiderHost $ runFrame $ do
1296 rootsToPropagate <- forM roots $ \r@(RootTrigger (_, occRef, k) :=> a) -> do
1128 rootsToPropagate <- forM roots $ \r@(RootTrigger (_, occRef, k) :=> a) -> do
1297 occBefore <- liftIO $ do
1129 occBefore <- liftIO $ do
1298 occBefore <- readIORef occRef
1130 occBefore <- readIORef occRef
@@ -1330,11 +1162,9 @@ scheduleMerge' initialHeight heightRef a = scheduleMerge initialHeight $ do
1330 GT -> scheduleMerge' height heightRef a -- The height has been increased (by a coincidence event; TODO: is this the only way?)
1162 GT -> scheduleMerge' height heightRef a -- The height has been increased (by a coincidence event; TODO: is this the only way?)
1333−newtype Clear a = Clear (IORef (Maybe a))
1165+data SomeClear = forall a. SomeClear (IORef (Maybe a))
1335−newtype IntClear a = IntClear (IORef (IntMap a))
1167+data SomeRootClear = forall k. SomeRootClear (IORef (DMap k Identity))
1337−newtype RootClear k = RootClear (IORef (DMap k Identity))
1339data SomeAssignment x = forall a. SomeAssignment {-# UNPACK #-} !(IORef a) {-# UNPACK #-} !(IORef [Weak (Invalidator x)]) a
1169data SomeAssignment x = forall a. SomeAssignment {-# UNPACK #-} !(IORef a) {-# UNPACK #-} !(IORef [Weak (Invalidator x)]) a
@@ -1346,110 +1176,55 @@ mkWeakPtrWithDebug x debugNote = do
1346 x' <- evaluate x
1176 x' <- evaluate x
1347 mkWeakPtr x' $
1177 mkWeakPtr x' $
1348 if debugFinalize
1178 if debugFinalize
1349− then Just $ debugStrLn $ "finalizing: " ++ debugNote
1179+ then Just $ putStrLn $ "finalizing: " ++ debugNote
1350 else Nothing
1180 else Nothing
1352type WeakList a = [Weak a]
1182type WeakList a = [Weak a]
1354−type CanTrace x m = (HasSpiderTimeline x, MonadIO m)
1361−debugSubscriber :: forall x a. HasSpiderTimeline x => String -> Subscriber x a -> IO (Subscriber x a)
1362−debugSubscriber description = return . debugSubscriber' description
1364−debugSubscriber' :: forall x a. HasSpiderTimeline x => String -> Subscriber x a -> Subscriber x a
1365−debugSubscriber' description subscribed = Subscriber
1367− subscriberPropagate = \m -> do
1368− tracePropagate (Proxy :: Proxy x) ("subscriberPropagate: " <> description)
1369− subscriberPropagate subscribed m
1370− , subscriberInvalidateHeight = \old -> do
1371− traceInvalidateHeight $ "invalidateSubscriberHeight: " <> description <> ", old = " <> show (unHeight old)
1372− subscriberInvalidateHeight subscribed old
1373− traceInvalidateHeight $ "invalidateSubscriberHeight: " <> description <> ", done"
1374− , subscriberRecalculateHeight = \new -> do
1375− traceInvalidateHeight $ "subscriberRecalculateHeight: " <> description <> ", new = " <> show (unHeight new)
1376− subscriberRecalculateHeight subscribed new
1377− traceInvalidateHeight $ "subscriberRecalculateHeight: " <> description <> ", done"
1381{-# INLINE withIncreasedDepth #-}
1184{-# INLINE withIncreasedDepth #-}
1382−withIncreasedDepth :: forall proxy x m a. CanTrace x m => proxy x -> m a -> m a
1186+withIncreasedDepth :: CanTrace x m => m a -> m a
1383−withIncreasedDepth _ a = do
1187+withIncreasedDepth a = do
1188+ spiderTimeline <- askSpiderTimelineEnv
1384− liftIO $ modifyIORef' (_spiderTimeline_depth $ unSTE (spiderTimeline :: SpiderTimelineEnv x)) succ
1189+ liftIO $ modifyIORef' (_spiderTimeline_depth spiderTimeline) succ
1385 result <- a
1190 result <- a
1386− liftIO $ modifyIORef' (_spiderTimeline_depth $ unSTE (spiderTimeline :: SpiderTimelineEnv x)) pred
1191+ liftIO $ modifyIORef' (_spiderTimeline_depth spiderTimeline) pred
1387 return result
1192 return result
1389−{-# INLINE tracePropagate #-}
1390−tracePropagate :: (CanTrace x m) => proxy x -> String -> m ()
1391−tracePropagate p = when debugPropagate . trace p
1393−{-# INLINE traceInvalidate #-}
1394−traceInvalidate :: String -> IO ()
1395−traceInvalidate = when debugInvalidate . liftIO . debugStrLn
1397−{-# INLINE traceInvalidateHeight #-}
1398−traceInvalidateHeight :: String -> IO ()
1399−traceInvalidateHeight = when debugInvalidateHeight . liftIO . debugStrLn
1401−{-# INLINE trace #-}
1402−trace :: (CanTrace x m) => proxy x -> String -> m ()
1403−trace p message = traceM p $ return message
1405−{-# INLINE traceM #-}
1406−traceM :: forall x proxy m. (CanTrace x m) => proxy x -> m String -> m ()
1407−traceM _ getMessage = do
1408− message <- getMessage
1409− d <- liftIO $ readIORef $ _spiderTimeline_depth $ unSTE (spiderTimeline :: SpiderTimelineEnv x)
1410− liftIO $ debugStrLn $ replicate d ' ' <> message
1194+withIncreasedDepth :: m a -> m a
1195+withIncreasedDepth = id
1414−{-# INLINE withIncreasedDepth #-}
1198+type CanTrace x m = (HasSpiderTimeline x, MonadIO m)
1415−withIncreasedDepth :: proxy x -> m a -> m a
1416−withIncreasedDepth _ = id
1418{-# INLINE tracePropagate #-}
1200{-# INLINE tracePropagate #-}
1419tracePropagate :: (CanTrace x m) => proxy x -> String -> m ()
1201tracePropagate :: (CanTrace x m) => proxy x -> String -> m ()
1420−tracePropagate _ _ = return ()
1202+tracePropagate p = traceWhen p debugPropagate
1422{-# INLINE traceInvalidate #-}
1204{-# INLINE traceInvalidate #-}
1423traceInvalidate :: String -> IO ()
1205traceInvalidate :: String -> IO ()
1424−traceInvalidate _ = return ()
1206+traceInvalidate = when debugInvalidate . liftIO . putStrLn
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 #-}
1208+{-# INLINE traceWhen #-}
1441−trace :: (CanTrace x m) => proxy x -> String -> m ()
1209+traceWhen :: (CanTrace x m) => proxy x -> Bool -> String -> m ()
1442−trace _ _ = return ()
1210+traceWhen p b message = traceMWhen p b $ return message
1444−{-# INLINE traceM #-}
1445−traceM :: (CanTrace x m) => proxy x -> m String -> m ()
1446−traceM _ _ = return ()
1212+{-# INLINE traceMWhen #-}
1213+traceMWhen :: (CanTrace x m) => proxy x -> Bool -> m String -> m ()
1214+traceMWhen _ b getMessage = when b $ do
1215+ message <- getMessage
1217+ spiderTimeline <- askSpiderTimelineEnv
1218+ d <- liftIO $ readIORef $ _spiderTimeline_depth spiderTimeline
1222+ liftIO $ putStrLn $ replicate d ' ' <> message
1450whoCreatedIORef :: IORef a -> IO [String]
1224whoCreatedIORef :: IORef a -> IO [String]
1451whoCreatedIORef (IORef a) = whoCreated $! a
1225whoCreatedIORef (IORef a) = whoCreated $! a
1453groupByHead :: Eq a => [NonEmpty a] -> [(a, NonEmpty [a])]
1228groupByHead :: Eq a => [NonEmpty a] -> [(a, NonEmpty [a])]
1454groupByHead = \case
1229groupByHead = \case
1455 [] -> []
1230 [] -> []
@@ -1460,54 +1235,20 @@ groupByHead = \case
1460 | otherwise -> (x, xs :| []) : l
1235 | otherwise -> (x, xs :| []) : l
1462listsToForest :: Eq a => [[a]] -> Forest a
1237listsToForest :: Eq a => [[a]] -> Forest a
1463−listsToForest lists = buildForest <$> groupByHead (mapMaybe nonEmpty lists)
1238+listsToForest l = fmap (\(a, l') -> Node a $ listsToForest $ toList l') $ groupByHead $ catMaybes $ fmap nonEmpty l
1464− where buildForest (a, lists') = Node a $ listsToForest $ toList lists'
1466−showStacks :: [[String]] -> String
1467−showStacks = drawForest . listsToForest . fmap (filterStack "Reflex.Spider.Internal")
1469−filterStack :: String -> [String] -> [String]
1470−#ifdef DEBUG_HIDE_INTERNALS
1471−filterStack prefix = filter (not . (prefix `isPrefixOf`))
1473−filterStack prefix = id
1478−data EventLoopException = EventLoopException [[String]]
1479−instance Exception EventLoopException
1481−instance Show EventLoopException where
1482− show (EventLoopException stacks) = "causality loop detected:\n" <> if null stacks
1483− then "no location information, compile with profiling enabled for stack tree"
1484− else showStacks stacks
1488−data EventLoopException = EventLoopException
1489−instance Exception EventLoopException
1491−instance Show EventLoopException where
1492− show EventLoopException = "causality loop detected: \n" <>
1493− "compile reflex with flag 'debug-cycles' and compile with profiling enabled for stack tree"
1498{-# INLINE propagateSubscriberHold #-}
1241{-# INLINE propagateSubscriberHold #-}
1499propagateSubscriberHold :: forall x p. (HasSpiderTimeline x, Patch p) => Hold x p -> p -> EventM x ()
1242propagateSubscriberHold :: forall x p. (HasSpiderTimeline x, Patch p) => Hold x p -> p -> EventM x ()
1500propagateSubscriberHold h a = do
1243propagateSubscriberHold h a = do
1501− {-# SCC "trace" #-} when debugPropagate $ traceM (Proxy :: Proxy x) $ liftIO $ do
1244+ {-# SCC "trace" #-} traceMWhen (Proxy :: Proxy x) debugPropagate $ liftIO $ do
1502 invalidators <- liftIO $ readIORef $ holdInvalidators h
1245 invalidators <- liftIO $ readIORef $ holdInvalidators h
1503 return $ "SubscriberHold" <> showNodeId h <> ": " ++ show (length invalidators)
1246 return $ "SubscriberHold" <> showNodeId h <> ": " ++ show (length invalidators)
1505 v <- {-# SCC "read" #-} liftIO $ readIORef $ holdValue h
1247 v <- {-# SCC "read" #-} liftIO $ readIORef $ holdValue h
1506 case {-# SCC "apply" #-} apply a v of
1248 case {-# SCC "apply" #-} apply a v of
1507 Nothing -> return ()
1249 Nothing -> return ()
1508 Just v' -> do
1250 Just v' -> do
1509− {-# SCC "trace2" #-} withIncreasedDepth (Proxy :: Proxy x) $
1510− tracePropagate (Proxy :: Proxy x) ("propagateSubscriberHold: assigning Hold" <> showNodeId h)
1251+ {-# SCC "trace2" #-} withIncreasedDepth $ tracePropagate (Proxy :: Proxy x) $ "propagateSubscriberHold: assigning Hold" <> showNodeId h
1511 vRef <- {-# SCC "vRef" #-} liftIO $ evaluate $ holdValue h
1252 vRef <- {-# SCC "vRef" #-} liftIO $ evaluate $ holdValue h
1512 iRef <- {-# SCC "iRef" #-} liftIO $ evaluate $ holdInvalidators h
1253 iRef <- {-# SCC "iRef" #-} liftIO $ evaluate $ holdInvalidators h
1513 defer $ {-# SCC "assignment" #-} SomeAssignment vRef iRef v'
1254 defer $ {-# SCC "assignment" #-} SomeAssignment vRef iRef v'
@@ -1515,25 +1256,25 @@ propagateSubscriberHold h a = do
1515data SomeResetCoincidence x = forall a. SomeResetCoincidence !(EventSubscription x) !(Maybe (CoincidenceSubscribed x a)) -- The CoincidenceSubscriber will be present only if heights need to be reset
1256data SomeResetCoincidence x = forall a. SomeResetCoincidence !(EventSubscription x) !(Maybe (CoincidenceSubscribed x a)) -- The CoincidenceSubscriber will be present only if heights need to be reset
1517runBehaviorM :: BehaviorM x a -> Maybe (Weak (Invalidator x), IORef [SomeBehaviorSubscribed x]) -> IORef [SomeHoldInit x] -> IO a
1258runBehaviorM :: BehaviorM x a -> Maybe (Weak (Invalidator x), IORef [SomeBehaviorSubscribed x]) -> IORef [SomeHoldInit x] -> IO a
1518−runBehaviorM a mwi holdInits = runReaderIO (unBehaviorM a) (mwi, holdInits)
1259+runBehaviorM a mwi holdInits = runReaderT (unBehaviorM a) (mwi, holdInits)
1520askInvalidator :: BehaviorM x (Maybe (Weak (Invalidator x)))
1261askInvalidator :: BehaviorM x (Maybe (Weak (Invalidator x)))
1521askInvalidator = do
1262askInvalidator = do
1522− (!m, _) <- ask
1263+ (!m, _) <- BehaviorM ask
1523 case m of
1264 case m of
1524 Nothing -> return Nothing
1265 Nothing -> return Nothing
1525 Just (!wi, _) -> return $ Just wi
1266 Just (!wi, _) -> return $ Just wi
1527askParentsRef :: BehaviorM x (Maybe (IORef [SomeBehaviorSubscribed x]))
1268askParentsRef :: BehaviorM x (Maybe (IORef [SomeBehaviorSubscribed x]))
1528askParentsRef = do
1269askParentsRef = do
1529− (!m, _) <- ask
1270+ (!m, _) <- BehaviorM ask
1530 case m of
1271 case m of
1531 Nothing -> return Nothing
1272 Nothing -> return Nothing
1532 Just (_, !p) -> return $ Just p
1273 Just (_, !p) -> return $ Just p
1534askBehaviorHoldInits :: BehaviorM x (IORef [SomeHoldInit x])
1275askBehaviorHoldInits :: BehaviorM x (IORef [SomeHoldInit x])
1535askBehaviorHoldInits = do
1276askBehaviorHoldInits = do
1536− (_, !his) <- ask
1277+ (_, !his) <- BehaviorM ask
1537 return his
1278 return his
1539{-# INLINE getDynHold #-}
1280{-# INLINE getDynHold #-}
@@ -1541,27 +1282,30 @@ getDynHold :: (Defer (SomeHoldInit x) m, Patch p) => Dyn x p -> m (Hold x p)
1541getDynHold d = do
1282getDynHold d = do
1542 mh <- liftIO $ readIORef $ unDyn d
1283 mh <- liftIO $ readIORef $ unDyn d
1543 case mh of
1284 case mh of
1544− HoldDyn h -> return h
1285+ Right h -> return h
1545− UnsafeDyn (readV0, v') -> do
1286+ Left (readV0, v') -> do
1546 holdInits <- getDeferralQueue
1287 holdInits <- getDeferralQueue
1547 v0 <- liftIO $ runBehaviorM readV0 Nothing holdInits
1288 v0 <- liftIO $ runBehaviorM readV0 Nothing holdInits
1549− BuildDyn (readV0, v') -> do
1550− v0 <- liftIO $ runEventM readV0
1554 h <- hold v0 v'
1289 h <- hold v0 v'
1555− liftIO $ writeIORef (unDyn d) $ HoldDyn h
1290+ liftIO $ writeIORef (unDyn d) $ Right h
1556 return h
1291 return h
1559-- Always refers to 0
1293-- Always refers to 0
1560{-# NOINLINE zeroRef #-}
1294{-# NOINLINE zeroRef #-}
1561zeroRef :: IORef Height
1295zeroRef :: IORef Height
1562zeroRef = unsafePerformIO $ newIORef zeroHeight
1296zeroRef = unsafePerformIO $ newIORef zeroHeight
1298+type CanSubscribe x m =
1299+ ( HasSpiderTimeline x
1300+ , HasCurrentHeight x m
1301+ , Defer (SomeHoldInit x) m, Defer (SomeMergeInit x) m -- The things we need to lazily initialize state
1302+ , Defer SomeClear m -- Wiping out event firings
1303+ , Defer (SomeAssignment x) m -- Updating state
1304+ , Defer (SomeResetCoincidence x) m
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)
1308+getRootSubscribed :: GCompare k => k a -> Root x k -> Subscriber x a -> IO (WeakBagTicket, RootSubscribed x a, Maybe a)
1565getRootSubscribed k r sub = do
1309getRootSubscribed k r sub = do
1566 mSubscribed <- readIORef $ rootSubscribed r
1310 mSubscribed <- readIORef $ rootSubscribed r
1567 let getOcc = fmap (coerce . DMap.lookup k) $ readIORef $ rootOccurrence r
1311 let getOcc = fmap (coerce . DMap.lookup k) $ readIORef $ rootOccurrence r
@@ -1575,15 +1319,10 @@ getRootSubscribed k r sub = do
1575 let !cached = rootSubscribed r
1319 let !cached = rootSubscribed r
1576 uninitRef <- newIORef $ error "getRootsubscribed: uninitRef not initialized"
1320 uninitRef <- newIORef $ error "getRootsubscribed: uninitRef not initialized"
1577 (subs, sln) <- WeakBag.singleton sub weakSelf cleanupRootSubscribed
1321 (subs, sln) <- WeakBag.singleton sub weakSelf cleanupRootSubscribed
1579− tracePropagate (Proxy::Proxy x) $ "getRootSubscribed: calling rootInit"
1322+ when debugPropagate $ putStrLn $ "getRootSubscribed: calling rootInit"
1581 uninit <- rootInit r k $ RootTrigger (subs, rootOccurrence r, k)
1323 uninit <- rootInit r k $ RootTrigger (subs, rootOccurrence r, k)
1582 writeIORef uninitRef $! uninit
1324 writeIORef uninitRef $! uninit
1583−#ifdef DEBUG_NODEIDS
1586− let !subscribed = RootSubscribed
1325+ let subscribed = RootSubscribed
1587 { rootSubscribedKey = k
1326 { rootSubscribedKey = k
1588 , rootSubscribedCachedSubscribed = cached
1327 , rootSubscribedCachedSubscribed = cached
1589 , rootSubscribedOccurrence = getOcc
1328 , rootSubscribedOccurrence = getOcc
@@ -1591,29 +1330,17 @@ getRootSubscribed k r sub = do
1591 , rootSubscribedUninit = uninit
1330 , rootSubscribedUninit = uninit
1592 , rootSubscribedWeakSelf = weakSelf
1331 , rootSubscribedWeakSelf = weakSelf
1593#ifdef DEBUG_NODEIDS
1332#ifdef DEBUG_NODEIDS
1594− , rootSubscribedNodeId = nid
1333+ , rootSubscribedNodeId = unsafeNodeId (k, r, subs)
1597− -- If we die at the same moment that all our children die, they will
1598− -- try to clean us up but will fail because their Weak reference to us
1599− -- will also be dead. So, if we are dying, check if there are any
1600− -- children; since children don't bother cleaning themselves up if
1601− -- their parents are already dead, I don't think there's a race
1602− -- condition here. However, if there are any children, then we can
1603− -- infer that we need to clean ourselves up, so we do.
1605− cs <- readIORef $ _weakBag_children subs
1606− when (not $ IntMap.null cs) (cleanupRootSubscribed subscribed)
1607− writeIORef weakSelf =<< evaluate =<< mkWeakPtr subscribed (Just finalCleanup)
1336+ writeIORef weakSelf =<< evaluate =<< mkWeakPtrWithDebug subscribed "RootSubscribed"
1608 modifyIORef' (rootSubscribed r) $ DMap.insertWith (error $ "getRootSubscribed: duplicate key inserted into Root") k subscribed --TODO: I think we can just write back mSubscribed rather than re-reading it
1337 modifyIORef' (rootSubscribed r) $ DMap.insertWith (error $ "getRootSubscribed: duplicate key inserted into Root") k subscribed --TODO: I think we can just write back mSubscribed rather than re-reading it
1609 occ <- getOcc
1338 occ <- getOcc
1610 return (sln, subscribed, occ)
1339 return (sln, subscribed, occ)
1612−#ifdef USE_TEMPLATE_HASKELL
1613{-# ANN cleanupRootSubscribed "HLint: ignore Redundant bracket" #-}
1341{-# ANN cleanupRootSubscribed "HLint: ignore Redundant bracket" #-}
1615cleanupRootSubscribed :: RootSubscribed x a -> IO ()
1342cleanupRootSubscribed :: RootSubscribed x a -> IO ()
1616−cleanupRootSubscribed self@RootSubscribed { rootSubscribedKey = k, rootSubscribedCachedSubscribed = cached } = do
1343+cleanupRootSubscribed self@(RootSubscribed { rootSubscribedKey = k, rootSubscribedCachedSubscribed = cached }) = do
1617 rootSubscribedUninit self
1344 rootSubscribedUninit self
1618 modifyIORef' cached $ DMap.delete k
1345 modifyIORef' cached $ DMap.delete k
@@ -1621,90 +1348,8 @@ cleanupRootSubscribed self@RootSubscribed { rootSubscribedKey = k, rootSubscribe
1621subscribeRootSubscribed :: RootSubscribed x a -> Subscriber x a -> IO WeakBagTicket
1348subscribeRootSubscribed :: RootSubscribed x a -> Subscriber x a -> IO WeakBagTicket
1622subscribeRootSubscribed subscribed sub = WeakBag.insert sub (rootSubscribedSubscribers subscribed) (rootSubscribedWeakSelf subscribed) cleanupRootSubscribed
1349subscribeRootSubscribed subscribed sub = WeakBag.insert sub (rootSubscribedSubscribers subscribed) (rootSubscribedWeakSelf subscribed) cleanupRootSubscribed
1624−newtype EventSelectorInt x a = EventSelectorInt { selectInt :: Int -> Event x a }
1626−data FanInt x a = FanInt
1627− { _fanInt_subscribers :: {-# UNPACK #-} !(FastMutableIntMap (FastWeakBag (Subscriber x a))) --TODO: Clean up the keys in here when their child weak bags get empty --TODO: Remove our own subscription when the subscribers list is completely empty
1628− , _fanInt_subscriptionRef :: {-# UNPACK #-} !(IORef (EventSubscription x)) -- This should have a valid subscription iff subscribers is non-empty
1629− , _fanInt_occRef :: {-# UNPACK #-} !(IORef (IntMap a))
1630−#ifdef DEBUG_NODEIDS
1631− , _fanInt_nodeId :: {-# UNPACK #-} !Int
1635−newFanInt :: IO (FanInt x a)
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
1638− subscriptionRef <- newIORef $ error "fanInt: no subscription"
1639− occRef <- newIORef $ error "fanInt: no occurrence"
1640−#ifdef DEBUG_NODEIDS
1641− nodeId <- newNodeId
1644− { _fanInt_subscribers = subscribers
1645− , _fanInt_subscriptionRef = subscriptionRef
1646− , _fanInt_occRef = occRef
1647−#ifdef DEBUG_NODEIDS
1648− , _fanInt_nodeId = nodeId
1652−fanInt :: HasSpiderTimeline x => Event x (IntMap a) -> EventSelectorInt x a
1653−fanInt p = unsafePerformIO $ do
1655− pure $ EventSelectorInt $ \k -> Event $ \sub -> do
1656− isEmpty <- liftIO $ FastMutableIntMap.isEmpty (_fanInt_subscribers self)
1657− when isEmpty $ do -- This is the first subscriber, so we need to subscribe to our input
1658− let desc = "fanInt" <> showNodeId self <> ", k = " <> show k
1659− (subscription, parentOcc) <- subscribeAndRead p $ debugSubscriber' desc $ Subscriber
1660− { subscriberPropagate = \m -> do
1661− liftIO $ writeIORef (_fanInt_occRef self) m
1662− scheduleIntClear $ _fanInt_occRef self
1663− FastMutableIntMap.forIntersectionWithImmutable_ (_fanInt_subscribers self) m $ \b v -> --TODO: Do we need to know that no subscribers are being added as we traverse?
1664− FastWeakBag.traverse_ b $ \s ->
1665− subscriberPropagate s v
1666− , subscriberInvalidateHeight = \old ->
1667− FastMutableIntMap.for_ (_fanInt_subscribers self) $ \b ->
1668− FastWeakBag.traverse_ b $ \s ->
1669− subscriberInvalidateHeight s old
1670− , subscriberRecalculateHeight = \new ->
1671− FastMutableIntMap.for_ (_fanInt_subscribers self) $ \b ->
1672− FastWeakBag.traverse_ b $ \s ->
1673− subscriberRecalculateHeight s new
1676− writeIORef (_fanInt_subscriptionRef self) subscription
1677− writeIORef (_fanInt_occRef self) $ fromMaybe IntMap.empty parentOcc
1678− scheduleIntClear $ _fanInt_occRef self
1680− b <- FastMutableIntMap.lookup (_fanInt_subscribers self) k >>= \case
1682− b <- FastWeakBag.empty
1683− FastMutableIntMap.insert (_fanInt_subscribers self) k b
1686− ticket <- liftIO $ FastWeakBag.insert sub b
1687− currentOcc <- readIORef (_fanInt_occRef self)
1689− subscribed <- fanIntSubscribed ticket self
1690− return (EventSubscription (FastWeakBag.remove ticket) subscribed, IntMap.lookup k currentOcc)
1692−fanIntSubscribed :: FastWeakBagTicket k -> FanInt x a -> IO (EventSubscribed x)
1693−fanIntSubscribed ticket self = do
1694− subscribedParent <- _eventSubscription_subscribed <$> readIORef (_fanInt_subscriptionRef self)
1695− return $ EventSubscribed
1696− { eventSubscribedHeightRef = eventSubscribedHeightRef subscribedParent
1697− , eventSubscribedRetained = toAny (_fanInt_subscriptionRef self, ticket)
1699− , eventSubscribedGetParents = return [subscribedParent]
1700− , eventSubscribedHasOwnHeightRef = False
1701− , eventSubscribedWhoCreated = whoCreatedIORef $ _fanInt_subscriptionRef self
1706{-# INLINABLE getFanSubscribed #-}
1351{-# INLINABLE getFanSubscribed #-}
1707−getFanSubscribed :: (HasSpiderTimeline x, GCompare k) => k a -> Fan x k v -> Subscriber x (v a) -> EventM x (WeakBagTicket, FanSubscribed x k v, Maybe (v a))
1352+getFanSubscribed :: (Defer (SomeAssignment x) m, Defer (SomeHoldInit x) m, Defer (SomeMergeInit x) m, Defer SomeClear m, HasCurrentHeight x m, Defer (SomeResetCoincidence x) m, HasSpiderTimeline x, m ~ EventM x, GCompare k) => k a -> Fan x k -> Subscriber x a -> m (WeakBagTicket, FanSubscribed x k, Maybe a)
1708getFanSubscribed k f sub = do
1353getFanSubscribed k f sub = do
1709 mSubscribed <- liftIO $ readIORef $ fanSubscribed f
1354 mSubscribed <- liftIO $ readIORef $ fanSubscribed f
1710 case mSubscribed of
1355 case mSubscribed of
@@ -1722,16 +1367,13 @@ getFanSubscribed k f sub = do
1722 subscribersRef <- liftIO $ newIORef $ error "getFanSubscribed: subscribersRef not yet initialized"
1367 subscribersRef <- liftIO $ newIORef $ error "getFanSubscribed: subscribersRef not yet initialized"
1723 occRef <- liftIO $ newIORef parentOcc
1368 occRef <- liftIO $ newIORef parentOcc
1724 when (isJust parentOcc) $ scheduleClear occRef
1369 when (isJust parentOcc) $ scheduleClear occRef
1725−#ifdef DEBUG_NODEIDS
1726− nid <- liftIO newNodeId
1728 let subscribed = FanSubscribed
1370 let subscribed = FanSubscribed
1729 { fanSubscribedCachedSubscribed = fanSubscribed f
1371 { fanSubscribedCachedSubscribed = fanSubscribed f
1730 , fanSubscribedOccurrence = occRef
1372 , fanSubscribedOccurrence = occRef
1731 , fanSubscribedParent = subscription
1373 , fanSubscribedParent = subscription
1732 , fanSubscribedSubscribers = subscribersRef
1374 , fanSubscribedSubscribers = subscribersRef
1733#ifdef DEBUG_NODEIDS
1375#ifdef DEBUG_NODEIDS
1734− , fanSubscribedNodeId = nid
1376+ , fanSubscribedNodeId = unsafeNodeId f
1737 let !self = (k, subscribed)
1379 let !self = (k, subscribed)
@@ -1741,7 +1383,7 @@ getFanSubscribed k f sub = do
1741 liftIO $ writeIORef (fanSubscribed f) $ Just subscribed
1383 liftIO $ writeIORef (fanSubscribed f) $ Just subscribed
1742 return (slnForSub, subscribed, coerce $ DMap.lookup k =<< parentOcc)
1384 return (slnForSub, subscribed, coerce $ DMap.lookup k =<< parentOcc)
1744−cleanupFanSubscribed :: GCompare k => (k a, FanSubscribed x k v) -> IO ()
1386+cleanupFanSubscribed :: GCompare k => (k a, FanSubscribed x k) -> IO ()
1745cleanupFanSubscribed (k, subscribed) = do
1387cleanupFanSubscribed (k, subscribed) = do
1746 subscribers <- readIORef $ fanSubscribedSubscribers subscribed
1388 subscribers <- readIORef $ fanSubscribedSubscribers subscribed
1747 let reducedSubscribers = DMap.delete k subscribers
1389 let reducedSubscribers = DMap.delete k subscribers
@@ -1753,7 +1395,7 @@ cleanupFanSubscribed (k, subscribed) = do
1753 else writeIORef (fanSubscribedSubscribers subscribed) $! reducedSubscribers
1395 else writeIORef (fanSubscribedSubscribers subscribed) $! reducedSubscribers
1755{-# INLINE subscribeFanSubscribed #-}
1397{-# INLINE subscribeFanSubscribed #-}
1756−subscribeFanSubscribed :: GCompare k => k a -> FanSubscribed x k v -> Subscriber x (v a) -> IO WeakBagTicket
1398+subscribeFanSubscribed :: GCompare k => k a -> FanSubscribed x k -> Subscriber x a -> IO WeakBagTicket
1757subscribeFanSubscribed k subscribed sub = do
1399subscribeFanSubscribed k subscribed sub = do
1758 subscribers <- readIORef $ fanSubscribedSubscribers subscribed
1400 subscribers <- readIORef $ fanSubscribedSubscribers subscribed
1759 case DMap.lookup k subscribers of
1401 case DMap.lookup k subscribers of
@@ -1766,7 +1408,7 @@ subscribeFanSubscribed k subscribed sub = do
1766 Just (FanSubscribedChildren list _ weakSelf) -> {-# SCC "hitSubscribeFanSubscribed" #-} WeakBag.insert sub list weakSelf cleanupFanSubscribed
1408 Just (FanSubscribedChildren list _ weakSelf) -> {-# SCC "hitSubscribeFanSubscribed" #-} WeakBag.insert sub list weakSelf cleanupFanSubscribed
1768{-# INLINABLE getSwitchSubscribed #-}
1410{-# INLINABLE getSwitchSubscribed #-}
1769−getSwitchSubscribed :: HasSpiderTimeline x => Switch x a -> Subscriber x a -> EventM x (WeakBagTicket, SwitchSubscribed x a, Maybe a)
1411+getSwitchSubscribed :: (Defer (SomeHoldInit x) m, Defer (SomeAssignment x) m, Defer (SomeMergeInit x) m, Defer SomeClear m, Defer (SomeResetCoincidence x) m, HasCurrentHeight x m, HasSpiderTimeline x, m ~ EventM x) => Switch x a -> Subscriber x a -> m (WeakBagTicket, SwitchSubscribed x a, Maybe a)
1770getSwitchSubscribed s sub = do
1412getSwitchSubscribed s sub = do
1771 mSubscribed <- liftIO $ readIORef $ switchSubscribed s
1413 mSubscribed <- liftIO $ readIORef $ switchSubscribed s
1772 case mSubscribed of
1414 case mSubscribed of
@@ -1791,9 +1433,6 @@ getSwitchSubscribed s sub = do
1791 when (isJust parentOcc) $ scheduleClear occRef
1433 when (isJust parentOcc) $ scheduleClear occRef
1792 weakSelf <- liftIO $ newIORef $ error "getSwitchSubscribed: weakSelf not yet initialized"
1434 weakSelf <- liftIO $ newIORef $ error "getSwitchSubscribed: weakSelf not yet initialized"
1793 (subs, slnForSub) <- liftIO $ WeakBag.singleton sub weakSelf cleanupSwitchSubscribed
1435 (subs, slnForSub) <- liftIO $ WeakBag.singleton sub weakSelf cleanupSwitchSubscribed
1794−#ifdef DEBUG_NODEIDS
1795− nid <- liftIO newNodeId
1797 let !subscribed = SwitchSubscribed
1436 let !subscribed = SwitchSubscribed
1798 { switchSubscribedCachedSubscribed = switchSubscribed s
1437 { switchSubscribedCachedSubscribed = switchSubscribed s
1799 , switchSubscribedOccurrence = occRef
1438 , switchSubscribedOccurrence = occRef
@@ -1806,7 +1445,7 @@ getSwitchSubscribed s sub = do
1806 , switchSubscribedCurrentParent = subscriptionRef
1445 , switchSubscribedCurrentParent = subscriptionRef
1807 , switchSubscribedWeakSelf = weakSelf
1446 , switchSubscribedWeakSelf = weakSelf
1808#ifdef DEBUG_NODEIDS
1447#ifdef DEBUG_NODEIDS
1809− , switchSubscribedNodeId = nid
1448+ , switchSubscribedNodeId = unsafeNodeId s
1812 liftIO $ writeIORef weakSelf =<< evaluate =<< mkWeakPtrWithDebug subscribed "switchSubscribedWeakSelf"
1451 liftIO $ writeIORef weakSelf =<< evaluate =<< mkWeakPtrWithDebug subscribed "switchSubscribedWeakSelf"
@@ -1825,7 +1464,7 @@ subscribeSwitchSubscribed :: SwitchSubscribed x a -> Subscriber x a -> IO WeakBa
1825subscribeSwitchSubscribed subscribed sub = WeakBag.insert sub (switchSubscribedSubscribers subscribed) (switchSubscribedWeakSelf subscribed) cleanupSwitchSubscribed
1464subscribeSwitchSubscribed subscribed sub = WeakBag.insert sub (switchSubscribedSubscribers subscribed) (switchSubscribedWeakSelf subscribed) cleanupSwitchSubscribed
1827{-# INLINABLE getCoincidenceSubscribed #-}
1466{-# INLINABLE getCoincidenceSubscribed #-}
1828−getCoincidenceSubscribed :: forall x a. HasSpiderTimeline x => Coincidence x a -> Subscriber x a -> EventM x (WeakBagTicket, CoincidenceSubscribed x a, Maybe a)
1467+getCoincidenceSubscribed :: forall x a m. (Defer (SomeAssignment x) m, Defer (SomeHoldInit x) m, Defer (SomeMergeInit x) m, Defer SomeClear m, HasCurrentHeight x m, Defer (SomeResetCoincidence x) m, HasSpiderTimeline x, m ~ EventM x) => Coincidence x a -> Subscriber x a -> m (WeakBagTicket, CoincidenceSubscribed x a, Maybe a)
1829getCoincidenceSubscribed c sub = do
1468getCoincidenceSubscribed c sub = do
1830 mSubscribed <- liftIO $ readIORef $ coincidenceSubscribed c
1469 mSubscribed <- liftIO $ readIORef $ coincidenceSubscribed c
1831 case mSubscribed of
1470 case mSubscribed of
@@ -1851,9 +1490,6 @@ getCoincidenceSubscribed c sub = do
1851 scheduleClear innerSubdRef
1490 scheduleClear innerSubdRef
1852 weakSelf <- liftIO $ newIORef $ error "getCoincidenceSubscribed: weakSelf not yet implemented"
1491 weakSelf <- liftIO $ newIORef $ error "getCoincidenceSubscribed: weakSelf not yet implemented"
1853 (subs, slnForSub) <- liftIO $ WeakBag.singleton sub weakSelf cleanupCoincidenceSubscribed
1492 (subs, slnForSub) <- liftIO $ WeakBag.singleton sub weakSelf cleanupCoincidenceSubscribed
1854−#ifdef DEBUG_NODEIDS
1855− nid <- liftIO newNodeId
1857 let subscribed = CoincidenceSubscribed
1493 let subscribed = CoincidenceSubscribed
1858 { coincidenceSubscribedCachedSubscribed = coincidenceSubscribed c
1494 { coincidenceSubscribedCachedSubscribed = coincidenceSubscribed c
1859 , coincidenceSubscribedOccurrence = occRef
1495 , coincidenceSubscribedOccurrence = occRef
@@ -1864,7 +1500,7 @@ getCoincidenceSubscribed c sub = do
1864 , coincidenceSubscribedInnerParent = innerSubdRef
1500 , coincidenceSubscribedInnerParent = innerSubdRef
1865 , coincidenceSubscribedWeakSelf = weakSelf
1501 , coincidenceSubscribedWeakSelf = weakSelf
1866#ifdef DEBUG_NODEIDS
1502#ifdef DEBUG_NODEIDS
1867− , coincidenceSubscribedNodeId = nid
1503+ , coincidenceSubscribedNodeId = unsafeNodeId c
1870 liftIO $ writeIORef weakSelf =<< evaluate =<< mkWeakPtrWithDebug subscribed "CoincidenceSubscribed"
1506 liftIO $ writeIORef weakSelf =<< evaluate =<< mkWeakPtrWithDebug subscribed "CoincidenceSubscribed"
@@ -1881,497 +1517,216 @@ cleanupCoincidenceSubscribed subscribed = do
1881subscribeCoincidenceSubscribed :: CoincidenceSubscribed x a -> Subscriber x a -> IO WeakBagTicket
1517subscribeCoincidenceSubscribed :: CoincidenceSubscribed x a -> Subscriber x a -> IO WeakBagTicket
1882subscribeCoincidenceSubscribed subscribed sub = WeakBag.insert sub (coincidenceSubscribedSubscribers subscribed) (coincidenceSubscribedWeakSelf subscribed) cleanupCoincidenceSubscribed
1518subscribeCoincidenceSubscribed subscribed sub = WeakBag.insert sub (coincidenceSubscribedSubscribers subscribed) (coincidenceSubscribedWeakSelf subscribed) cleanupCoincidenceSubscribed
1884−{-# INLINE mergeG #-}
1520+{-# INLINE merge #-}
1885−mergeG :: forall k q x v. (HasSpiderTimeline x, GCompare k)
1521+merge :: forall k x. (HasSpiderTimeline x, GCompare k) => Dynamic x (PatchDMap k (Event x)) -> Event x (DMap k Identity)
1886− => (forall a. q a -> Event x (v a))
1887− -> DynamicS x (PatchDMap k q) -> Event x (DMap k v)
1888−mergeG nt d = cacheEvent (mergeCheap nt d)
1522+merge d = cacheEvent (mergeCheap d)
1890−{-# INLINE mergeWithMove #-}
1891−mergeWithMove :: forall k v q x. (HasSpiderTimeline x, GCompare k)
1892− => (forall a. q a -> Event x (v a))
1893− -> DynamicS x (PatchDMapWithMove k q) -> Event x (DMap k v)
1894−mergeWithMove nt d = cacheEvent (mergeCheapWithMove nt d)
1896{-# INLINE [1] mergeCheap #-}
1524{-# INLINE [1] mergeCheap #-}
1897−mergeCheap
1525+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)
1526+mergeCheap d = Event $ \sub -> do
1899− => (forall a. q a -> Event x (v a))
1900− -> DynamicS x (PatchDMap k q)
1901− -> Event x (DMap k v)
1902−mergeCheap nt = mergeGCheap' unMergeSubscribedParent getInitialSubscribers updateMe destroy
1904− updateMe :: MergeUpdateFunc k v x (PatchDMap k q) (MergeSubscribedParent x)
1905− updateMe subscriber heightBagRef oldParents (PatchDMap p) = do
1906− let f (subscriptionsToKill, ps) (k :=> ComposeMaybe me) = do
1907− (mOldSubd, newPs) <- case me of
1908− Nothing -> return $ DMap.updateLookupWithKey (\_ _ -> Nothing) k ps
1910− let s = subscriber $ return k
1911− subscription@(EventSubscription _ subd) <- subscribe (nt e) s
1912− newParentHeight <- liftIO $ getEventSubscribedHeight subd
1913− let newParent = MergeSubscribedParent subscription
1914− liftIO $ modifyIORef' heightBagRef $ heightBagAdd newParentHeight
1915− return $ DMap.insertLookupWithKey' (\_ new _ -> new) k newParent ps
1916− forM_ mOldSubd $ \oldSubd -> do
1917− oldHeight <- liftIO $ getEventSubscribedHeight $
1918− _eventSubscription_subscribed $ unMergeSubscribedParent oldSubd
1920− liftIO $ modifyIORef heightBagRef $ heightBagRemove oldHeight
1921− return (maybeToList (unMergeSubscribedParent <$> mOldSubd) ++ subscriptionsToKill, newPs)
1922− foldM f ([], oldParents) $ DMap.toList p
1924− getInitialSubscribers :: MergeInitFunc k v q x (MergeSubscribedParent x)
1925− getInitialSubscribers initialParents subscriber = do
1926− subscribers <- forM (DMap.toList initialParents) $ \(k :=> e) -> do
1927− let s = subscriber $ return k
1928− (subscription@(EventSubscription _ parentSubd), parentOcc) <- subscribeAndRead (nt e) s
1929− height <- liftIO $ getEventSubscribedHeight parentSubd
1930− return (fmap (k :=>) parentOcc, height, k :=> MergeSubscribedParent subscription)
1931− return ( DMap.fromDistinctAscList $ mapMaybe (\(x, _, _) -> x) subscribers
1932− , fmap (\(_, h, _) -> h) subscribers --TODO: Assert that there's no invalidHeight in here
1933− , DMap.fromDistinctAscList $ map (\(_, _, x) -> x) subscribers
1936− destroy :: MergeDestroyFunc k (MergeSubscribedParent x)
1937− destroy s = forM_ (DMap.toList s) $ \(_ :=> MergeSubscribedParent sub) -> unsubscribe sub
1939−{-# INLINE [1] mergeCheapWithMove #-}
1940−mergeCheapWithMove :: forall k x v q. (HasSpiderTimeline x, GCompare k)
1941− => (forall a. q a -> Event x (v a))
1942− -> DynamicS x (PatchDMapWithMove k q)
1943− -> Event x (DMap k v)
1944−mergeCheapWithMove nt = mergeGCheap' _mergeSubscribedParentWithMove_subscription getInitialSubscribers updateMe destroy
1946− updateMe :: MergeUpdateFunc k v x (PatchDMapWithMove k q) (MergeSubscribedParentWithMove x k)
1947− updateMe subscriber heightBagRef oldParents p = do
1948− -- Prepare new parents for insertion
1949− let subscribeParent :: forall a. k a -> Event x (v a) -> EventM x (MergeSubscribedParentWithMove x k a)
1950− subscribeParent k e = do
1951− keyRef <- liftIO $ newIORef k
1952− let s = subscriber $ liftIO $ readIORef keyRef
1953− subscription@(EventSubscription _ subd) <- subscribe e s
1955− newParentHeight <- getEventSubscribedHeight subd
1956− modifyIORef' heightBagRef $ heightBagAdd newParentHeight
1957− return $ MergeSubscribedParentWithMove subscription keyRef
1958− p' <- PatchDMapWithMove.traversePatchDMapWithMoveWithKey (\k q -> subscribeParent k (nt q)) p
1959− -- Collect old parents for deletion and update the keys of moved parents
1960− let moveOrDelete :: forall a. k a -> PatchDMapWithMove.NodeInfo k q a -> MergeSubscribedParentWithMove x k a -> Constant (EventM x (Maybe (EventSubscription x))) a
1961− moveOrDelete _ ni parent = Constant $ case getComposeMaybe $ PatchDMapWithMove._nodeInfo_to ni of
1963− oldHeight <- liftIO $ getEventSubscribedHeight $ _eventSubscription_subscribed $
1964− _mergeSubscribedParentWithMove_subscription parent
1966− liftIO $ modifyIORef heightBagRef $ heightBagRemove oldHeight
1967− return $ Just $ _mergeSubscribedParentWithMove_subscription parent
1969− liftIO $ writeIORef (_mergeSubscribedParentWithMove_key parent) $! toKey
1971− toDelete <- fmap catMaybes $ mapM (\(_ :=> v) -> getConstant v) $ DMap.toList $
1972− DMap.intersectionWithKey moveOrDelete (unPatchDMapWithMove p) oldParents
1974− return (toDelete, applyAlways p' oldParents)
1975− getInitialSubscribers :: MergeInitFunc k v q x (MergeSubscribedParentWithMove x k)
1976− getInitialSubscribers initialParents subscriber = do
1977− subscribers <- forM (DMap.toList initialParents) $ \(k :=> e) -> do
1978− keyRef <- liftIO $ newIORef k
1979− let s = subscriber $ liftIO $ readIORef keyRef
1980− (subscription@(EventSubscription _ parentSubd), parentOcc) <- subscribeAndRead (nt e) s
1981− height <- liftIO $ getEventSubscribedHeight parentSubd
1982− return (fmap (k :=>) parentOcc, height, k :=> MergeSubscribedParentWithMove subscription keyRef)
1983− return ( DMap.fromDistinctAscList $ mapMaybe (\(x, _, _) -> x) subscribers
1984− , fmap (\(_, h, _) -> h) subscribers --TODO: Assert that there's no invalidHeight in here
1985− , DMap.fromDistinctAscList $ map (\(_, _, x) -> x) subscribers
1988− destroy :: MergeDestroyFunc k (MergeSubscribedParentWithMove x k)
1989− destroy s = forM_ (DMap.toList s) $ \(_ :=> MergeSubscribedParentWithMove sub _) -> unsubscribe sub
1991−type MergeUpdateFunc k v x p s
1992− = (forall a. EventM x (k a) -> Subscriber x (v a))
1996− -> EventM x ([EventSubscription x], DMap k s)
1998−type MergeGetSubscription x s = forall a. s a -> EventSubscription x
2000−type MergeInitFunc k v q x s
2002− -> (forall a. EventM x (k a) -> Subscriber x (v a))
2003− -> EventM x (DMap k v, [Height], DMap k s)
2005−type MergeDestroyFunc k s
2009−data Merge x k v s = Merge
2010− { _merge_parentsRef :: {-# UNPACK #-} !(IORef (DMap k s))
2011− , _merge_heightBagRef :: {-# UNPACK #-} !(IORef HeightBag)
2012− , _merge_heightRef :: {-# UNPACK #-} !(IORef Height)
2013− , _merge_sub :: {-# UNPACK #-} !(Subscriber x (DMap k v))
2014− , _merge_accumRef :: {-# UNPACK #-} !(IORef (DMap k v))
2017−invalidateMergeHeight :: Merge x k v s -> IO ()
2018−invalidateMergeHeight m = invalidateMergeHeight' (_merge_heightRef m) (_merge_sub m)
2020−invalidateMergeHeight' :: IORef Height -> Subscriber x a -> IO ()
2021−invalidateMergeHeight' heightRef sub = do
2022− oldHeight <- readIORef heightRef
2023− -- If the height used to be valid, it must be invalid now; we should never have *more* heights than we have parents
2024− when (oldHeight /= invalidHeight) $ do
2025− writeIORef heightRef $! invalidHeight
2026− subscriberInvalidateHeight sub oldHeight
2028−revalidateMergeHeight :: Merge x k v s -> IO ()
2029−revalidateMergeHeight m = do
2030− currentHeight <- readIORef $ _merge_heightRef m
2032− -- revalidateMergeHeight may be called multiple times; perhaps the's a way to finesse it to avoid this check
2033− when (currentHeight == invalidHeight) $ do
2034− heights <- readIORef $ _merge_heightBagRef m
2035− parents <- readIORef $ _merge_parentsRef m
2036− -- When the number of heights in the bag reaches the number of parents, we should have a valid height
2037− case heightBagSize heights `compare` DMap.size parents of
2040− let height = succHeight $ heightBagMax heights
2041− traceInvalidateHeight $ "recalculateSubscriberHeight: height: " <> show height
2042− writeIORef (_merge_heightRef m) $! height
2043− subscriberRecalculateHeight (_merge_sub m) height
2044− GT -> error $ "revalidateMergeHeight: more heights (" <> show (heightBagSize heights) <> ") than parents (" <> show (DMap.size parents) <> ") for Merge"
2046−scheduleMergeSelf :: HasSpiderTimeline x => Merge x k v s -> Height -> EventM x ()
2047−scheduleMergeSelf m height = scheduleMerge' height (_merge_heightRef m) $ do
2048− vals <- liftIO $ readIORef $ _merge_accumRef m
2049− -- Once we're done with this, we can clear it immediately, because if there's a cacheEvent in front of us,
2050− -- it'll handle subsequent subscribers, and if not, we won't get subsequent subscribers
2051− liftIO $ writeIORef (_merge_accumRef m) $! DMap.empty
2052− --TODO: Assert that m is not empty
2053− subscriberPropagate (_merge_sub m) vals
2055−checkCycle :: HasSpiderTimeline x => EventSubscribed x -> EventM x ()
2056−checkCycle subscribed = liftIO $ do
2057− height <- readIORef (eventSubscribedHeightRef subscribed)
2059− -- currentHeight <- getCurrentHeight
2060− -- when (height <= currentHeight) $ if height /= invalidHeight
2062− -- myStack <- liftIO $ whoCreatedIORef undefined --TODO
2063− -- error $ "Height (" ++ show height ++ ") is not greater than current height (" ++ show currentHeight ++ ")\n" ++ unlines (reverse myStack)
2065− when (height == invalidHeight) $
2068− nodesInvolvedInCycle <- walkInvalidHeightParents subscribed
2069− stacks <- forM nodesInvolvedInCycle whoCreatedEventSubscribed
2070− throwIO (EventLoopException stacks)
2072− throwIO EventLoopException
2076−mergeSubscriber :: forall x k v s a. (HasSpiderTimeline x, GCompare k) => EventSubscribed x -> Merge x k v s -> EventM x (k a) -> Subscriber x (v a)
2077−mergeSubscriber subscribed m getKey = Subscriber
2078− { subscriberPropagate = \a -> do
2079− oldM <- liftIO $ readIORef $ _merge_accumRef m
2081− let newM = DMap.insertWith (error "Same key fired multiple times for Merge") k a oldM
2082− tracePropagate (Proxy :: Proxy x) $ " DMap.size oldM = " <> show (DMap.size oldM) <> "; DMap.size newM = " <> show (DMap.size newM)
2083− liftIO $ writeIORef (_merge_accumRef m) $! newM
2084− when (DMap.null oldM) $ do -- Only schedule the firing once
2085− height <- liftIO $ readIORef $ _merge_heightRef m
2086− checkCycle subscribed
2088− scheduleMergeSelf m height
2089− , subscriberInvalidateHeight = \old -> do --TODO: When removing a parent doesn't actually change the height, maybe we can avoid invalidating
2090− modifyIORef' (_merge_heightBagRef m) $ heightBagRemove old
2091− invalidateMergeHeight m
2092− , subscriberRecalculateHeight = \new -> do
2093− modifyIORef' (_merge_heightBagRef m) $ heightBagAdd new
2094− revalidateMergeHeight m
2097−--TODO: Be able to run as much of this as possible promptly
2098−updateMerge :: (HasSpiderTimeline x, GCompare k) => EventSubscribed x -> Merge x k v s -> MergeUpdateFunc k v x p s -> p -> SomeMergeUpdate x
2099−updateMerge subscribed m updateFunc p = SomeMergeUpdate updateMe (invalidateMergeHeight m) (revalidateMergeHeight m)
2100− where updateMe = do
2101− oldParents <- liftIO $ readIORef $ _merge_parentsRef m
2102− (subscriptionsToKill, newParents) <- updateFunc (mergeSubscriber subscribed m) (_merge_heightBagRef m) oldParents p
2103− liftIO $ writeIORef (_merge_parentsRef m) $! newParents
2104− return subscriptionsToKill
2106−{-# INLINE mergeGCheap' #-}
2107−mergeGCheap' :: forall k v x p s q. (HasSpiderTimeline x, GCompare k, PatchTarget p ~ DMap k q)
2108− => MergeGetSubscription x s -> MergeInitFunc k v q x s -> MergeUpdateFunc k v x p s -> MergeDestroyFunc k s -> DynamicS x p -> Event x (DMap k v)
2109−mergeGCheap' getParent getInitialSubscribers updateFunc destroy d = Event $ \sub -> do
2110 initialParents <- readBehaviorUntracked $ dynamicCurrent d
1527 initialParents <- readBehaviorUntracked $ dynamicCurrent d
2111 accumRef <- liftIO $ newIORef $ error "merge: accumRef not yet initialized"
1528 accumRef <- liftIO $ newIORef $ error "merge: accumRef not yet initialized"
2112 heightRef <- liftIO $ newIORef $ error "merge: heightRef not yet initialized"
1529 heightRef <- liftIO $ newIORef $ error "merge: heightRef not yet initialized"
2113 heightBagRef <- liftIO $ newIORef $ error "merge: heightBagRef not yet initialized"
1530 heightBagRef <- liftIO $ newIORef $ error "merge: heightBagRef not yet initialized"
2114− parentsRef :: IORef (DMap k s) <- liftIO $ newIORef $ error "merge: parentsRef not yet initialized"
1531+ parentsRef <- liftIO $ newIORef $ error "merge: parentsRef not yet initialized"
2115− changeSubdRef <- liftIO $ newIORef $ error "getMergeSubscribed: changeSubdRef not yet initialized"
1532+ let scheduleSelf height = scheduleMerge' height heightRef $ do
2116−
1533+ m <- liftIO $ readIORef accumRef
2117− let subscribed = EventSubscribed
1534+ liftIO $ writeIORef accumRef $! DMap.empty
2118− { eventSubscribedHeightRef = heightRef
1535+ --TODO: Assert that m is not empty
2119− , eventSubscribedRetained = toAny (parentsRef, changeSubdRef)
1536+ subscriberPropagate sub m
2120−#ifdef DEBUG_CYCLES
1537+ invalidateMyHeight = do
2121− , eventSubscribedGetParents = do
1538+ oldHeight <- readIORef heightRef
2122− let getParent' (_ :=> v) = _eventSubscription_subscribed (getParent v)
1539+ 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
2123− fmap getParent' . DMap.toList <$> readIORef parentsRef
1540+ writeIORef heightRef $! invalidHeight
2124− , eventSubscribedHasOwnHeightRef = False
1541+ subscriberInvalidateHeight sub oldHeight
2125− , eventSubscribedWhoCreated = whoCreatedIORef heightRef
1542+ revalidateMyHeight = do
2130− { _merge_parentsRef = parentsRef
2131− , _merge_heightBagRef = heightBagRef
2132− , _merge_heightRef = heightRef
2134− , _merge_accumRef = accumRef
2136− (dm, heights, initialParentState) <- getInitialSubscribers initialParents $ mergeSubscriber subscribed m
2137− let myHeightBag = heightBagFromList $ filter (/= invalidHeight) heights
2138− myHeight = if invalidHeight `elem` heights
2140− else succHeight $ heightBagMax myHeightBag
2141− currentHeight <- getCurrentHeight
2142− let (occ, accum) = if currentHeight >= myHeight -- If we should have fired by now
2143− then (if DMap.null dm then Nothing else Just dm, DMap.empty)
2145− unless (DMap.null accum) $ scheduleMergeSelf m myHeight
2146− liftIO $ writeIORef accumRef $! accum
2147− liftIO $ writeIORef heightRef $! myHeight
2148− liftIO $ writeIORef heightBagRef $! myHeightBag
2149− liftIO $ writeIORef parentsRef $! initialParentState
2150− defer $ SomeMergeInit $ do
2151− let changeSubscriber = Subscriber
2152− { subscriberPropagate = \a -> {-# SCC "traverseMergeChange" #-} do
2153− tracePropagate (Proxy :: Proxy x) "SubscriberMerge/Change"
2154− defer $ updateMerge subscribed m updateFunc a
2155− , subscriberInvalidateHeight = \_ -> return ()
2156− , subscriberRecalculateHeight = \_ -> return ()
2158− (changeSubscription, change) <- subscribeAndRead (dynamicUpdated d) changeSubscriber
2159− forM_ change $ \c -> defer $ updateMerge subscribed m updateFunc c
2160− -- We explicitly hold on to the unsubscribe function from subscribing to the update event.
2161− -- If we don't do this, there are certain cases where mergeCheap will fail to properly retain
2162− -- its subscription.
2163− liftIO $ writeIORef changeSubdRef (changeSubscriber, changeSubscription)
2164− let unsubscribeAll = destroy =<< readIORef parentsRef
2166− return (EventSubscription unsubscribeAll subscribed, occ)
2169−mergeInt :: forall x a. (HasSpiderTimeline x) => DynamicS x (PatchIntMap (Event x a)) -> Event x (IntMap a)
2170−mergeInt = cacheEvent . mergeIntCheap
2172−{-# INLINABLE mergeIntCheap #-}
2173−mergeIntCheap :: forall x a. (HasSpiderTimeline x) => DynamicS x (PatchIntMap (Event x a)) -> Event x (IntMap a)
2174−mergeIntCheap d = Event $ \sub -> do
2175− initialParents <- readBehaviorUntracked $ dynamicCurrent d
2176− accum <- liftIO $ FastMutableIntMap.newEmpty
2177− heightRef <- liftIO $ newIORef zeroHeight
2178− heightBagRef <- liftIO $ newIORef heightBagEmpty
2179− parents <- liftIO $ FastMutableIntMap.newEmpty
2180− changeSubdRef <- liftIO $ newIORef $ error "getMergeSubscribed: changeSubdRef not yet initialized"
2181− let subscribed = EventSubscribed
2182− { eventSubscribedHeightRef = heightRef
2183− , eventSubscribedRetained = toAny (parents, changeSubdRef)
2185− , eventSubscribedGetParents = fmap (_eventSubscription_subscribed . snd) <$> FastMutableIntMap.toList parents
2186− , eventSubscribedHasOwnHeightRef = False
2187− , eventSubscribedWhoCreated = whoCreatedIORef heightRef
2190− let scheduleSelf = do
2191− height <- liftIO $ readIORef $ heightRef
2192− scheduleMerge' height heightRef $ do
2193− vals <- liftIO $ FastMutableIntMap.getFrozenAndClear accum
2194− subscriberPropagate sub vals
2195− invalidateMyHeight = invalidateMergeHeight' heightRef sub
2196− recalculateMyHeight = do
2197 currentHeight <- readIORef heightRef
1543 currentHeight <- readIORef heightRef
2198− when (currentHeight == invalidHeight) $ do --TODO: This will almost always be true; can we get rid of this check and just proceed to the next one always?
1544+ when (currentHeight == invalidHeight) $ do -- revalidateMergeHeight may be called multiple times; perhaps the's a way to finesse it to avoid this check
2199 heights <- readIORef heightBagRef
1545 heights <- readIORef heightBagRef
2200− numParents <- FastMutableIntMap.size parents
1546+ parents <- readIORef parentsRef
2201− case heightBagSize heights `compare` numParents of
1547+ -- When the number of heights in the bag reaches the number of parents, we should have a valid height
1548+ case heightBagSize heights `compare` DMap.size parents of
2202 LT -> return ()
1549 LT -> return ()
2203 EQ -> do
1550 EQ -> do
2204 let height = succHeight $ heightBagMax heights
1551 let height = succHeight $ heightBagMax heights
2205− traceInvalidateHeight $ "recalculateSubscriberHeight: height: " <> show height
1552+ when debugInvalidateHeight $ putStrLn $ "recalculateSubscriberHeight: height: " <> show height
2206 writeIORef heightRef $! height
1553 writeIORef heightRef $! height
2207 subscriberRecalculateHeight sub height
1554 subscriberRecalculateHeight sub height
2208− GT -> error $ "revalidateMergeHeight: more heights (" <> show (heightBagSize heights) <> ") than parents (" <> show numParents <> ") for Merge"
1555+ GT -> error $ "revalidateMergeHeight: more heights than parents for Merge"
2209− mySubscriber k = Subscriber
1556+ subscriber :: forall a. k a -> Subscriber x a
1557+ subscriber k = Subscriber
2210 { subscriberPropagate = \a -> do
1558 { subscriberPropagate = \a -> do
2211− checkCycle subscribed
1559+ oldM <- liftIO $ readIORef accumRef
2212−
1560+ let newM = DMap.insertWith (error $ "Same key fired multiple times for Merge") k (Identity a) oldM
2213− wasEmpty <- liftIO $ FastMutableIntMap.isEmpty accum
1561+ tracePropagate (Proxy :: Proxy x) $ " DMap.size oldM = " <> show (DMap.size oldM) <> "; DMap.size newM = " <> show (DMap.size newM)
2214− liftIO $ FastMutableIntMap.insert accum k a
1562+ liftIO $ writeIORef accumRef $! newM
2215− when wasEmpty scheduleSelf
1563+ when (DMap.null oldM) $ do -- Only schedule the firing once
2216− , subscriberInvalidateHeight = \old -> do
1564+ height <- liftIO $ readIORef heightRef
1565+ --TODO: assertions about height
1566+ currentHeight <- getCurrentHeight
1567+ when (height <= currentHeight) $ do
1568+ if height /= invalidHeight
1570+ myStack <- liftIO $ whoCreatedIORef undefined --TODO
1571+ error $ "Height (" ++ show height ++ ") is not greater than current height (" ++ show currentHeight ++ ")\n" ++ unlines (reverse myStack)
1574+ nodesInvolvedInCycle <- walkInvalidHeightParents $ eventSubscribedMerge subscribed
1575+ stacks <- forM nodesInvolvedInCycle $ \(Some.This es) -> whoCreatedEventSubscribed es
1576+ let cycleInfo = ":\n" <> drawForest (listsToForest stacks)
1580+ error $ "Causality loop found" <> cycleInfo
1581+ scheduleSelf height
1582+ , subscriberInvalidateHeight = \old -> do --TODO: When removing a parent doesn't actually change the height, maybe we can avoid invalidating
2217 modifyIORef' heightBagRef $ heightBagRemove old
1583 modifyIORef' heightBagRef $ heightBagRemove old
2218 invalidateMyHeight
1584 invalidateMyHeight
2219 , subscriberRecalculateHeight = \new -> do
1585 , subscriberRecalculateHeight = \new -> do
2220 modifyIORef' heightBagRef $ heightBagAdd new
1586 modifyIORef' heightBagRef $ heightBagAdd new
2221− recalculateMyHeight
1587+ revalidateMyHeight
2223− forM_ (IntMap.toList initialParents) $ \(k, p) -> do
1589+ subscribers :: [(Maybe (DSum k Identity), Height, DSum k (MergeSubscribedParent x))] <- forM (DMap.toList initialParents) $ \(k :=> e) -> do
2224− (subscription@(EventSubscription _ parentSubd), parentOcc) <- subscribeAndRead p $ mySubscriber k
1590+ let s = subscriber k
2225− liftIO $ do
1591+ (subscription@(EventSubscription _ parentSubd), parentOcc) <- subscribeAndRead e s
2226− forM_ parentOcc $ FastMutableIntMap.insert accum k
1592+ height <- liftIO $ getEventSubscribedHeight parentSubd
2227− FastMutableIntMap.insert parents k subscription
1593+ return $ (fmap (\x -> k :=> Identity x) parentOcc, height, k :=> MergeSubscribedParent subscription)
2228− height <- getEventSubscribedHeight parentSubd
1594+ let dm = DMap.fromDistinctAscList $ mapMaybe (\(x, _, _) -> x) subscribers
2229− if height == invalidHeight
1595+ heights = fmap (\(_, h, _) -> h) subscribers --TODO: Assert that there's no invalidHeight in here
2230− then writeIORef heightRef invalidHeight
1596+ myHeightBag = heightBagFromList $ filter (/= invalidHeight) heights
2231− else do
1597+ myHeight = if invalidHeight `elem` heights
2232− modifyIORef' heightBagRef $ heightBagAdd height
1598+ then invalidHeight
2233− modifyIORef' heightRef $ \oldHeight ->
1599+ else succHeight $ heightBagMax myHeightBag
2234− if oldHeight == invalidHeight
2236− else max (succHeight height) oldHeight
2237− myHeight <- liftIO $ readIORef heightRef
2238 currentHeight <- getCurrentHeight
1600 currentHeight <- getCurrentHeight
2239− isEmpty <- liftIO $ FastMutableIntMap.isEmpty accum
1601+ let (occ, accum) = if currentHeight >= myHeight -- If we should have fired by now
2240− occ <- if currentHeight >= myHeight -- If we should have fired by now
1602+ then (if DMap.null dm then Nothing else Just dm, DMap.empty)
2241− then if isEmpty
1603+ else (Nothing, dm)
2242− then return Nothing
1604+ unless (DMap.null accum) $ do
2243− else liftIO $ Just <$> FastMutableIntMap.getFrozenAndClear accum
1605+ scheduleSelf myHeight
2244− else do when (not isEmpty) scheduleSelf -- We have things accumulated, but we shouldn't have fired them yet
1606+ occRef <- liftIO $ newIORef occ
2245− return Nothing
1607+ when (isJust occ) $ scheduleClear occRef
1608+ liftIO $ writeIORef accumRef $! accum
1609+ liftIO $ writeIORef heightRef $! myHeight
1610+ liftIO $ writeIORef heightBagRef $! myHeightBag
1611+ changeSubdRef <- liftIO $ newIORef $ error "getMergeSubscribed: changeSubdRef not yet initialized"
1612+ liftIO $ writeIORef parentsRef $! DMap.fromDistinctAscList $ map (\(_, _, x) -> x) subscribers
1613+ let updateMe (PatchDMap p) = do
1614+ oldParents <- liftIO $ readIORef parentsRef
1615+ let f (subscriptionsToKill, ps) (k :=> ComposeMaybe me) = do
1616+ (mOldSubd, newPs) <- case me of
1617+ Nothing -> return $ DMap.updateLookupWithKey (\_ _ -> Nothing) k ps
1619+ let s = subscriber k
1620+ subscription@(EventSubscription _ subd) <- subscribe e s
1621+ newParentHeight <- liftIO $ getEventSubscribedHeight subd
1622+ let newParent = MergeSubscribedParent subscription
1623+ liftIO $ modifyIORef' heightBagRef $ heightBagAdd newParentHeight
1624+ return $ DMap.insertLookupWithKey' (\_ new _ -> new) k newParent ps
1625+ forM_ mOldSubd $ \oldSubd -> do
1626+ oldHeight <- liftIO $ getEventSubscribedHeight $ _eventSubscription_subscribed $ unMergeSubscribedParent oldSubd
1627+ liftIO $ modifyIORef heightBagRef $ heightBagRemove oldHeight
1628+ return (maybeToList (unMergeSubscribedParent <$> mOldSubd) ++ subscriptionsToKill, newPs)
1629+ (subscriptionsToKill, newParents) <- foldM f ([], oldParents) $ DMap.toList p --TODO: I think this runEventM is OK, since no events are firing at this time, but it might not be
1630+ liftIO $ writeIORef parentsRef $! newParents
1631+ return subscriptionsToKill
2246 defer $ SomeMergeInit $ do
1632 defer $ SomeMergeInit $ do
2247− let updateMe a = SomeMergeUpdate u invalidateMyHeight recalculateMyHeight
1633+ let s = Subscriber
2250− let f k newParent = do
2251− subscription@(EventSubscription _ subd) <- subscribe newParent $ mySubscriber k
2252− newParentHeight <- liftIO $ getEventSubscribedHeight subd
2253− liftIO $ modifyIORef' heightBagRef $ heightBagAdd newParentHeight
2254− return subscription
2255− newSubscriptions <- FastMutableIntMap.traverseIntMapPatchWithKey f a
2256− oldParents <- liftIO $ FastMutableIntMap.applyPatch parents newSubscriptions
2257− liftIO $ for_ oldParents $ \oldParent -> do
2258− oldParentHeight <- getEventSubscribedHeight $ _eventSubscription_subscribed oldParent
2260− print ("updateMe", oldParentHeight)
2261− modifyIORef' heightBagRef $ heightBagRemove oldParentHeight
2262− return $ IntMap.elems oldParents
2263− let changeSubscriber = Subscriber
2264 { subscriberPropagate = \a -> {-# SCC "traverseMergeChange" #-} do
1634 { subscriberPropagate = \a -> {-# SCC "traverseMergeChange" #-} do
2265− tracePropagate (Proxy :: Proxy x) $ "SubscriberMergeInt/Change"
1635+ tracePropagate (Proxy :: Proxy x) $ "SubscriberMerge/Change"
2266− defer $ updateMe a
1636+ defer $ SomeMergeUpdate (updateMe a) invalidateMyHeight revalidateMyHeight
2267 , subscriberInvalidateHeight = \_ -> return ()
1637 , subscriberInvalidateHeight = \_ -> return ()
2268 , subscriberRecalculateHeight = \_ -> return ()
1638 , subscriberRecalculateHeight = \_ -> return ()
2270− (changeSubscription, change) <- subscribeAndRead (dynamicUpdated d) changeSubscriber
1640+ (EventSubscription _ changeSubd, change) <- subscribeAndRead (dynamicUpdated d) s
2271− forM_ change $ \c -> defer $ updateMe c
1641+ forM_ change $ \c -> defer $ SomeMergeUpdate (updateMe c) invalidateMyHeight revalidateMyHeight
2272− -- We explicitly hold on to the unsubscribe function from subscribing to the update event.
1642+ liftIO $ writeIORef changeSubdRef (s, changeSubd)
2273− -- If we don't do this, there are certain cases where mergeCheap will fail to properly retain
1643+ let unsubscribeAll = do
2274− -- its subscription.
1644+ parents <- readIORef parentsRef
2275− liftIO $ writeIORef changeSubdRef (changeSubscriber, changeSubscription)
1645+ forM_ (DMap.toList parents) $ \(_ :=> MergeSubscribedParent s) -> unsubscribe s
2276− let unsubscribeAll = traverse_ unsubscribe =<< FastMutableIntMap.getFrozenAndClear parents
1646+ return ( EventSubscription unsubscribeAll $ EventSubscribed heightRef $ toAny (parentsRef, changeSubdRef)
2279− return (EventSubscription unsubscribeAll subscribed, occ)
2281newtype EventSelector x k = EventSelector { select :: forall a. k a -> Event x a }
1650newtype EventSelector x k = EventSelector { select :: forall a. k a -> Event x a }
2282−newtype EventSelectorG x k v = EventSelectorG { selectG :: forall a. k a -> Event x (v a) }
2284−fanG :: (HasSpiderTimeline x, GCompare k) => Event x (DMap k v) -> EventSelectorG x k v
1652+fan :: (HasSpiderTimeline x, GCompare k) => Event x (DMap k Identity) -> EventSelector x k
2285−fanG e = unsafePerformIO $ do
1653+fan e =
2286− ref <- newIORef Nothing
2287 let f = Fan
1654 let f = Fan
2288 { fanParent = e
1655 { fanParent = e
2289− , fanSubscribed = ref
1656+ , fanSubscribed = unsafeNewIORef e Nothing
2291− pure $ EventSelectorG $ \k -> eventFan k f
1658+ in EventSelector $ \k -> eventFan k f
2293−runHoldInits :: HasSpiderTimeline x => IORef [SomeHoldInit x] -> IORef [SomeDynInit x] -> IORef [SomeMergeInit x] -> EventM x ()
1660+runHoldInits :: HasSpiderTimeline x => IORef [SomeHoldInit x] -> IORef [SomeMergeInit x] -> EventM x ()
2294−runHoldInits holdInitRef dynInitRef mergeInitRef = do
1661+runHoldInits holdInitRef mergeInitRef = do
2295 holdInits <- liftIO $ readIORef holdInitRef
1662 holdInits <- liftIO $ readIORef holdInitRef
2296− dynInits <- liftIO $ readIORef dynInitRef
2297 mergeInits <- liftIO $ readIORef mergeInitRef
1663 mergeInits <- liftIO $ readIORef mergeInitRef
2298− unless (null holdInits && null dynInits && null mergeInits) $ do
1664+ unless (null holdInits && null mergeInits) $ do
2299 liftIO $ writeIORef holdInitRef []
1665 liftIO $ writeIORef holdInitRef []
2300− liftIO $ writeIORef dynInitRef []
2301 liftIO $ writeIORef mergeInitRef []
1666 liftIO $ writeIORef mergeInitRef []
2302 mapM_ initHold holdInits
1667 mapM_ initHold holdInits
2303− mapM_ initDyn dynInits
2304 mapM_ unSomeMergeInit mergeInits
1668 mapM_ unSomeMergeInit mergeInits
2305− runHoldInits holdInitRef dynInitRef mergeInitRef
1669+ runHoldInits holdInitRef mergeInitRef
2307initHold :: HasSpiderTimeline x => SomeHoldInit x -> EventM x ()
1671initHold :: HasSpiderTimeline x => SomeHoldInit x -> EventM x ()
2308initHold (SomeHoldInit h) = void $ getHoldEventSubscription h
1672initHold (SomeHoldInit h) = void $ getHoldEventSubscription h
2310−initDyn :: HasSpiderTimeline x => SomeDynInit x -> EventM x ()
2311−initDyn (SomeDynInit d) = void $ getDynHold d
2313newEventEnv :: IO (EventEnv x)
1674newEventEnv :: IO (EventEnv x)
2314newEventEnv = do
1675newEventEnv = do
2315 toAssignRef <- newIORef [] -- This should only actually get used when events are firing
1676 toAssignRef <- newIORef [] -- This should only actually get used when events are firing
2316 holdInitRef <- newIORef []
1677 holdInitRef <- newIORef []
2317− dynInitRef <- newIORef []
2318 mergeUpdateRef <- newIORef []
1678 mergeUpdateRef <- newIORef []
2319 mergeInitRef <- newIORef []
1679 mergeInitRef <- newIORef []
2320 heightRef <- newIORef zeroHeight
1680 heightRef <- newIORef zeroHeight
2321 toClearRef <- newIORef []
1681 toClearRef <- newIORef []
2322− toClearIntRef <- newIORef []
2323 toClearRootRef <- newIORef []
1682 toClearRootRef <- newIORef []
2324 coincidenceInfosRef <- newIORef []
1683 coincidenceInfosRef <- newIORef []
2325 delayedRef <- newIORef IntMap.empty
1684 delayedRef <- newIORef IntMap.empty
2326− return $ EventEnv toAssignRef holdInitRef dynInitRef mergeUpdateRef mergeInitRef toClearRef toClearIntRef toClearRootRef heightRef coincidenceInfosRef delayedRef
1685+ return $ EventEnv toAssignRef holdInitRef mergeUpdateRef mergeInitRef toClearRef toClearRootRef heightRef coincidenceInfosRef delayedRef
2328clearEventEnv :: EventEnv x -> IO ()
1687clearEventEnv :: EventEnv x -> IO ()
2329−clearEventEnv (EventEnv toAssignRef holdInitRef dynInitRef mergeUpdateRef mergeInitRef toClearRef toClearIntRef toClearRootRef heightRef coincidenceInfosRef delayedRef) = do
1688+clearEventEnv (EventEnv toAssignRef holdInitRef mergeUpdateRef mergeInitRef toClearRef toClearRootRef heightRef coincidenceInfosRef delayedRef) = do
2330 writeIORef toAssignRef []
1689 writeIORef toAssignRef []
2331 writeIORef holdInitRef []
1690 writeIORef holdInitRef []
2332− writeIORef dynInitRef []
2333 writeIORef mergeUpdateRef []
1691 writeIORef mergeUpdateRef []
2334 writeIORef mergeInitRef []
1692 writeIORef mergeInitRef []
2335 writeIORef heightRef zeroHeight
1693 writeIORef heightRef zeroHeight
2336 writeIORef toClearRef []
1694 writeIORef toClearRef []
2337− writeIORef toClearIntRef []
2338 writeIORef toClearRootRef []
1695 writeIORef toClearRootRef []
2339 writeIORef coincidenceInfosRef []
1696 writeIORef coincidenceInfosRef []
2340 writeIORef delayedRef IntMap.empty
1697 writeIORef delayedRef IntMap.empty
2342-- | Run an event action outside of a frame
1699-- | Run an event action outside of a frame
2343runFrame :: forall x a. HasSpiderTimeline x => EventM x a -> SpiderHost x a --TODO: This function also needs to hold the mutex
1700runFrame :: forall x a. HasSpiderTimeline x => EventM x a -> SpiderHost x a --TODO: This function also needs to hold the mutex
2344−runFrame a = SpiderHost $ do
1701+runFrame a = SpiderHost $ ask >>= \_ -> lift $ do
2345− let env = _spiderTimeline_eventEnv $ unSTE (spiderTimeline :: SpiderTimelineEnv x)
1702+ let env = _spiderTimeline_eventEnv (spiderTimeline :: SpiderTimelineEnv x)
2346 let go = do
1703 let go = do
2347 result <- a
1704 result <- a
2348− runHoldInits (eventEnvHoldInits env) (eventEnvDynInits env) (eventEnvMergeInits env) -- This must happen before doing the assignments, in case subscribing a Hold causes existing Holds to be read by the newly-propagated events
1705+ runHoldInits (eventEnvHoldInits env) (eventEnvMergeInits env) -- This must happen before doing the assignments, in case subscribing a Hold causes existing Holds to be read by the newly-propagated events
2349 return result
1706 return result
2350 result <- runEventM go
1707 result <- runEventM go
2351 toClear <- readIORef $ eventEnvClears env
1708 toClear <- readIORef $ eventEnvClears env
2352− forM_ toClear $ \(Some (Clear ref)) -> {-# SCC "clear" #-} writeIORef ref Nothing
1709+ forM_ toClear $ \(SomeClear ref) -> {-# SCC "clear" #-} writeIORef ref Nothing
2353− toClearInt <- readIORef $ eventEnvIntClears env
2354− forM_ toClearInt $ \(Some (IntClear ref)) -> {-# SCC "intClear" #-} writeIORef ref $! IntMap.empty
2355 toClearRoot <- readIORef $ eventEnvRootClears env
1710 toClearRoot <- readIORef $ eventEnvRootClears env
2356− forM_ toClearRoot $ \(Some (RootClear ref)) -> {-# SCC "rootClear" #-} writeIORef ref $! DMap.empty
1711+ forM_ toClearRoot $ \(SomeRootClear ref) -> {-# SCC "rootClear" #-} writeIORef ref $! DMap.empty
2357 toAssign <- readIORef $ eventEnvAssignments env
1712 toAssign <- readIORef $ eventEnvAssignments env
2358 toReconnectRef <- newIORef []
1713 toReconnectRef <- newIORef []
2359 coincidenceInfos <- readIORef $ eventEnvResetCoincidences env
1714 coincidenceInfos <- readIORef $ eventEnvResetCoincidences env
2360 forM_ toAssign $ \(SomeAssignment vRef iRef v) -> {-# SCC "assignment" #-} do
1715 forM_ toAssign $ \(SomeAssignment vRef iRef v) -> {-# SCC "assignment" #-} do
2361 writeIORef vRef v
1716 writeIORef vRef v
2362− traceInvalidate $ "Invalidating Hold"
1717+ when debugInvalidate $ putStrLn $ "Invalidating Hold"
2363 writeIORef iRef =<< evaluate =<< invalidate toReconnectRef =<< readIORef iRef
1718 writeIORef iRef =<< evaluate =<< invalidate toReconnectRef =<< readIORef iRef
2364 mergeUpdates <- readIORef $ eventEnvMergeUpdates env
1719 mergeUpdates <- readIORef $ eventEnvMergeUpdates env
2365 writeIORef (eventEnvMergeUpdates env) []
1720 writeIORef (eventEnvMergeUpdates env) []
2366− tracePropagate (Proxy::Proxy x) $ "Updating merges"
1721+ when debugPropagate $ putStrLn "Updating merges"
2367 mergeSubscriptionsToKill <- runEventM $ concat <$> mapM _someMergeUpdate_update mergeUpdates
1722 mergeSubscriptionsToKill <- runEventM $ concat <$> mapM _someMergeUpdate_update mergeUpdates
2368− tracePropagate (Proxy::Proxy x) $ "Updating merges done"
1723+ when debugPropagate $ putStrLn "Updating merges done"
2369 toReconnect <- readIORef toReconnectRef
1724 toReconnect <- readIORef toReconnectRef
2370 clearEventEnv env
1725 clearEventEnv env
2371 switchSubscriptionsToKill <- forM toReconnect $ \(SomeSwitchSubscribed subscribed) -> {-# SCC "switchSubscribed" #-} do
1726 switchSubscriptionsToKill <- forM toReconnect $ \(SomeSwitchSubscribed subscribed) -> {-# SCC "switchSubscribed" #-} do
2372 oldSubscription <- readIORef $ switchSubscribedCurrentParent subscribed
1727 oldSubscription <- readIORef $ switchSubscribedCurrentParent subscribed
2373 wi <- readIORef $ switchSubscribedOwnWeakInvalidator subscribed
1728 wi <- readIORef $ switchSubscribedOwnWeakInvalidator subscribed
2374− traceInvalidate $ "Finalizing invalidator for Switch" <> showNodeId subscribed
1729+ when debugInvalidate $ putStrLn $ "Finalizing invalidator for Switch" <> showNodeId subscribed
2375 finalize wi
1730 finalize wi
2376 i <- evaluate $ switchSubscribedOwnInvalidator subscribed
1731 i <- evaluate $ switchSubscribedOwnInvalidator subscribed
2377 wi' <- mkWeakPtrWithDebug i "wi'"
1732 wi' <- mkWeakPtrWithDebug i "wi'"
@@ -2379,13 +1734,13 @@ runFrame a = SpiderHost $ do
2379 writeIORef (switchSubscribedBehaviorParents subscribed) []
1734 writeIORef (switchSubscribedBehaviorParents subscribed) []
2380 writeIORef (eventEnvHoldInits env) [] --TODO: Should we reuse this?
1735 writeIORef (eventEnvHoldInits env) [] --TODO: Should we reuse this?
2381 e <- runBehaviorM (readBehaviorTracked (switchSubscribedParent subscribed)) (Just (wi', switchSubscribedBehaviorParents subscribed)) $ eventEnvHoldInits env
1736 e <- runBehaviorM (readBehaviorTracked (switchSubscribedParent subscribed)) (Just (wi', switchSubscribedBehaviorParents subscribed)) $ eventEnvHoldInits env
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
1737+ runEventM $ runHoldInits (eventEnvHoldInits env) (eventEnvMergeInits env) --TODO: Is this actually OK? It seems like it should be, since we know that no events are firing at this point, but it still seems inelegant
2383 --TODO: Make sure we touch the pieces of the SwitchSubscribed at the appropriate times
1738 --TODO: Make sure we touch the pieces of the SwitchSubscribed at the appropriate times
2384 sub <- newSubscriberSwitch subscribed
1739 sub <- newSubscriberSwitch subscribed
2385− subscription <- unSpiderHost $ runFrame $ {-# SCC "subscribeSwitch" #-} subscribe e sub --TODO: Assert that the event isn't firing --TODO: This should not loop because none of the events should be firing, but still, it is inefficient
1740+ subscription <- runReaderT (unSpiderHost (runFrame ({-# SCC "subscribeSwitch" #-} subscribe e sub))) spiderTimeline --TODO: Assert that the event isn't firing --TODO: This should not loop because none of the events should be firing, but still, it is inefficient
2387 stackTrace <- liftIO $ fmap renderStack $ ccsToStrings =<< (getCCSOf $! switchSubscribedParent subscribed)
1742 stackTrace <- liftIO $ fmap renderStack $ ccsToStrings =<< (getCCSOf $! switchSubscribedParent subscribed)
2388− liftIO $ debugStrLn $ (++stackTrace) $ "subd' subscribed to " ++ case e of
1743+ liftIO $ putStrLn $ (++stackTrace) $ "subd' subscribed to " ++ case e of
2389 EventRoot _ -> "EventRoot"
1744 EventRoot _ -> "EventRoot"
2390 EventNever -> "EventNever"
1745 EventNever -> "EventNever"
2391 _ -> "something else"
1746 _ -> "something else"
@@ -2400,7 +1755,7 @@ runFrame a = SpiderHost $ do
2400 myHeight <- readIORef $ switchSubscribedHeight subscribed
1755 myHeight <- readIORef $ switchSubscribedHeight subscribed
2401 when (parentHeight /= myHeight) $ do
1756 when (parentHeight /= myHeight) $ do
2402 writeIORef (switchSubscribedHeight subscribed) $! invalidHeight
1757 writeIORef (switchSubscribedHeight subscribed) $! invalidHeight
2403− WeakBag.traverse_ (switchSubscribedSubscribers subscribed) $ invalidateSubscriberHeight myHeight
1758+ WeakBag.traverse (switchSubscribedSubscribers subscribed) $ invalidateSubscriberHeight myHeight
2404 mapM_ _someMergeUpdate_invalidateHeight mergeUpdates --TODO: In addition to when the patch is completely empty, we should also not run this if it has some Nothing values, but none of them have actually had any effect; potentially, we could even check for Just values with no effect (e.g. by comparing their IORefs and ignoring them if they are unchanged); actually, we could just check if the new height is different
1759 mapM_ _someMergeUpdate_invalidateHeight mergeUpdates --TODO: In addition to when the patch is completely empty, we should also not run this if it has some Nothing values, but none of them have actually had any effect; potentially, we could even check for Just values with no effect (e.g. by comparing their IORefs and ignoring them if they are unchanged); actually, we could just check if the new height is different
2405 forM_ coincidenceInfos $ \(SomeResetCoincidence subscription mcs) -> do
1760 forM_ coincidenceInfos $ \(SomeResetCoincidence subscription mcs) -> do
2406 unsubscribe subscription
1761 unsubscribe subscription
@@ -2441,7 +1796,7 @@ invalidateCoincidenceHeight subscribed = do
2441 oldHeight <- readIORef $ coincidenceSubscribedHeight subscribed
1796 oldHeight <- readIORef $ coincidenceSubscribedHeight subscribed
2442 when (oldHeight /= invalidHeight) $ do
1797 when (oldHeight /= invalidHeight) $ do
2443 writeIORef (coincidenceSubscribedHeight subscribed) $! invalidHeight
1798 writeIORef (coincidenceSubscribedHeight subscribed) $! invalidHeight
2444− WeakBag.traverse_ (coincidenceSubscribedSubscribers subscribed) $ invalidateSubscriberHeight oldHeight
1799+ WeakBag.traverse (coincidenceSubscribedSubscribers subscribed) $ invalidateSubscriberHeight oldHeight
2446updateSwitchHeight :: Height -> SwitchSubscribed x a -> IO ()
1801updateSwitchHeight :: Height -> SwitchSubscribed x a -> IO ()
2447updateSwitchHeight new subscribed = do
1802updateSwitchHeight new subscribed = do
@@ -2449,7 +1804,7 @@ updateSwitchHeight new subscribed = do
2449 when (oldHeight == invalidHeight) $ do --TODO: This 'when' should probably be an assertion
1804 when (oldHeight == invalidHeight) $ do --TODO: This 'when' should probably be an assertion
2450 when (new /= invalidHeight) $ do --TODO: This 'when' should probably be an assertion
1805 when (new /= invalidHeight) $ do --TODO: This 'when' should probably be an assertion
2451 writeIORef (switchSubscribedHeight subscribed) $! new
1806 writeIORef (switchSubscribedHeight subscribed) $! new
2452− WeakBag.traverse_ (switchSubscribedSubscribers subscribed) $ recalculateSubscriberHeight new
1807+ WeakBag.traverse (switchSubscribedSubscribers subscribed) $ recalculateSubscriberHeight new
2454recalculateCoincidenceHeight :: CoincidenceSubscribed x a -> IO ()
1809recalculateCoincidenceHeight :: CoincidenceSubscribed x a -> IO ()
2455recalculateCoincidenceHeight subscribed = do
1810recalculateCoincidenceHeight subscribed = do
@@ -2458,7 +1813,7 @@ recalculateCoincidenceHeight subscribed = do
2458 height <- calculateCoincidenceHeight subscribed
1813 height <- calculateCoincidenceHeight subscribed
2459 when (height /= invalidHeight) $ do
1814 when (height /= invalidHeight) $ do
2460 writeIORef (coincidenceSubscribedHeight subscribed) $! height
1815 writeIORef (coincidenceSubscribedHeight subscribed) $! height
2461− WeakBag.traverse_ (coincidenceSubscribedSubscribers subscribed) $ recalculateSubscriberHeight height
1816+ WeakBag.traverse (coincidenceSubscribedSubscribers subscribed) $ recalculateSubscriberHeight height
2463calculateSwitchHeight :: SwitchSubscribed x a -> IO Height
1818calculateSwitchHeight :: SwitchSubscribed x a -> IO Height
2464calculateSwitchHeight subscribed = getEventSubscribedHeight . _eventSubscription_subscribed =<< readIORef (switchSubscribedCurrentParent subscribed)
1819calculateSwitchHeight subscribed = getEventSubscribedHeight . _eventSubscription_subscribed =<< readIORef (switchSubscribedCurrentParent subscribed)
@@ -2497,218 +1852,15 @@ invalidate toReconnectRef wis = do
2497-- Reflex integration
1852-- Reflex integration
2498--------------------------------------------------------------------------------
1853--------------------------------------------------------------------------------
2500−-- | Designates the default, global Spider timeline
2501−data SpiderTimeline x
2502−type role SpiderTimeline nominal
2504-- | The default, global Spider environment
1855-- | The default, global Spider environment
2505type Spider = SpiderTimeline Global
1856type Spider = SpiderTimeline Global
2507−instance HasSpiderTimeline x => Reflex.Class.MonadSample (SpiderTimeline x) (EventM x) where
1858+#ifndef SPECIALIZE_TO_SPIDERTIMELINE_GLOBAL
2508− {-# INLINABLE sample #-}
1859+-- When we're specializing, we include this from Reflex.Class instead, because
2509− sample (SpiderBehavior b) = readBehaviorUntracked b
1860+-- it needs access to these types; when we're not, we want them here, so our
2510−
1861+-- instance isn't an orphan instance.
2511−instance HasSpiderTimeline x => Reflex.Class.MonadHold (SpiderTimeline x) (EventM x) where
1862+#include "SpiderTimeline.include.hs"
2512− {-# INLINABLE hold #-}
2513− hold = holdSpiderEventM
2514− {-# INLINABLE holdDyn #-}
2515− holdDyn = holdDynSpiderEventM
2516− {-# INLINABLE holdIncremental #-}
2517− holdIncremental = holdIncrementalSpiderEventM
2518− {-# INLINABLE buildDynamic #-}
2519− buildDynamic = buildDynamicSpiderEventM
2520− {-# INLINABLE headE #-}
2521− headE = R.slowHeadE
2522−-- headE (SpiderEvent e) = SpiderEvent <$> Reflex.Spider.Internal.headE e
2523− {-# INLINABLE now #-}
2524− now = nowSpiderEventM
2526−instance Reflex.Class.MonadSample (SpiderTimeline x) (SpiderPullM x) where
2527− {-# INLINABLE sample #-}
2528− sample = coerce . readBehaviorTracked . unSpiderBehavior
2530−instance HasSpiderTimeline x => Reflex.Class.MonadSample (SpiderTimeline x) (SpiderPushM x) where
2531− {-# INLINABLE sample #-}
2532− sample (SpiderBehavior b) = SpiderPushM $ readBehaviorUntracked b
2534−instance HasSpiderTimeline x => Reflex.Class.MonadHold (SpiderTimeline x) (SpiderPushM x) where
2535− {-# INLINABLE hold #-}
2536− hold v0 e = Reflex.Class.current <$> Reflex.Class.holdDyn v0 e
2537− {-# INLINABLE holdDyn #-}
2538− holdDyn v0 (SpiderEvent e) = SpiderPushM $ fmap (SpiderDynamic . dynamicHoldIdentity) $ Reflex.Spider.Internal.hold v0 $ coerce e
2539− {-# INLINABLE holdIncremental #-}
2540− holdIncremental v0 (SpiderEvent e) = SpiderPushM $ SpiderIncremental . dynamicHold <$> Reflex.Spider.Internal.hold v0 e
2541− {-# INLINABLE buildDynamic #-}
2542− buildDynamic getV0 (SpiderEvent e) = SpiderPushM $ fmap (SpiderDynamic . dynamicDynIdentity) $ Reflex.Spider.Internal.buildDynamic (coerce getV0) $ coerce e
2543− {-# INLINABLE headE #-}
2544− headE = R.slowHeadE
2545−-- headE (SpiderEvent e) = SpiderPushM $ SpiderEvent <$> Reflex.Spider.Internal.headE e
2546− {-# INLINABLE now #-}
2547− now = SpiderPushM nowSpiderEventM
2550−instance HasSpiderTimeline x => Monad (Reflex.Class.Dynamic (SpiderTimeline x)) where
2551− {-# INLINE return #-}
2553− {-# INLINE (>>=) #-}
2554− x >>= f = SpiderDynamic $ dynamicDynIdentity $ newJoinDyn $ newMapDyn (unSpiderDynamic . f) $ unSpiderDynamic x
2555− {-# INLINE (>>) #-}
2557−#if !MIN_VERSION_base(4,13,0)
2558− {-# INLINE fail #-}
2559− fail _ = error "Dynamic does not support 'fail'"
2562−{-# INLINABLE newJoinDyn #-}
2563−newJoinDyn :: HasSpiderTimeline x => DynamicS x (Identity (DynamicS x (Identity a))) -> Reflex.Spider.Internal.Dyn x (Identity a)
2565− let readV0 = readBehaviorTracked . dynamicCurrent =<< readBehaviorTracked (dynamicCurrent d)
2566− eOuter = Reflex.Spider.Internal.push (fmap (Just . Identity) . readBehaviorUntracked . dynamicCurrent . runIdentity) $ dynamicUpdated d
2567− eInner = Reflex.Spider.Internal.switch $ dynamicUpdated <$> dynamicCurrent d
2568− eBoth = Reflex.Spider.Internal.coincidence $ dynamicUpdated . runIdentity <$> dynamicUpdated d
2569− v' = unSpiderEvent $ Reflex.Class.leftmost $ map SpiderEvent [eBoth, eOuter, eInner]
2570− in Reflex.Spider.Internal.unsafeBuildDynamic readV0 v'
2572−instance HasSpiderTimeline x => Functor (Reflex.Class.Dynamic (SpiderTimeline x)) where
2573− fmap = mapDynamicSpider
2574− x <$ d = R.unsafeBuildDynamic (return x) $ x <$ R.updated d
2576−mapDynamicSpider :: HasSpiderTimeline x => (a -> b) -> Reflex.Class.Dynamic (SpiderTimeline x) a -> Reflex.Class.Dynamic (SpiderTimeline x) b
2577−mapDynamicSpider f = SpiderDynamic . newMapDyn f . unSpiderDynamic
2578−{-# INLINE [1] mapDynamicSpider #-}
2580−instance HasSpiderTimeline x => Applicative (Reflex.Class.Dynamic (SpiderTimeline x)) where
2581− pure = SpiderDynamic . dynamicConst
2582−#if MIN_VERSION_base(4,10,0)
2583− liftA2 f a b = SpiderDynamic $ Reflex.Spider.Internal.zipDynWith f (unSpiderDynamic a) (unSpiderDynamic b)
2585− SpiderDynamic a <*> SpiderDynamic b = SpiderDynamic $ Reflex.Spider.Internal.zipDynWith ($) a b
2586− a *> b = R.unsafeBuildDynamic (R.sample $ R.current b) $ R.leftmost [R.updated b, R.tag (R.current b) $ R.updated a]
2587− (<*) = flip (*>) -- There are no effects, so order doesn't matter
2589−holdSpiderEventM :: HasSpiderTimeline x => a -> Reflex.Class.Event (SpiderTimeline x) a -> EventM x (Reflex.Class.Behavior (SpiderTimeline x) a)
2590−holdSpiderEventM v0 e = fmap (SpiderBehavior . behaviorHoldIdentity) $ Reflex.Spider.Internal.hold v0 $ coerce $ unSpiderEvent e
2592−holdDynSpiderEventM :: HasSpiderTimeline x => a -> Reflex.Class.Event (SpiderTimeline x) a -> EventM x (Reflex.Class.Dynamic (SpiderTimeline x) a)
2593−holdDynSpiderEventM v0 e = fmap (SpiderDynamic . dynamicHoldIdentity) $ Reflex.Spider.Internal.hold v0 $ coerce $ unSpiderEvent e
2595−holdIncrementalSpiderEventM :: (HasSpiderTimeline x, Patch p) => PatchTarget p -> Reflex.Class.Event (SpiderTimeline x) p -> EventM x (Reflex.Class.Incremental (SpiderTimeline x) p)
2596−holdIncrementalSpiderEventM v0 e = fmap (SpiderIncremental . dynamicHold) $ Reflex.Spider.Internal.hold v0 $ unSpiderEvent e
2598−buildDynamicSpiderEventM :: HasSpiderTimeline x => SpiderPushM x a -> Reflex.Class.Event (SpiderTimeline x) a -> EventM x (Reflex.Class.Dynamic (SpiderTimeline x) a)
2599−buildDynamicSpiderEventM getV0 e = fmap (SpiderDynamic . dynamicDynIdentity) $ Reflex.Spider.Internal.buildDynamic (coerce getV0) $ coerce $ unSpiderEvent e
2601−instance HasSpiderTimeline x => Reflex.Class.MonadHold (SpiderTimeline x) (SpiderHost x) where
2602− {-# INLINABLE hold #-}
2603− hold v0 e = runFrame . runSpiderHostFrame $ Reflex.Class.hold v0 e
2604− {-# INLINABLE holdDyn #-}
2605− holdDyn v0 e = runFrame . runSpiderHostFrame $ Reflex.Class.holdDyn v0 e
2606− {-# INLINABLE holdIncremental #-}
2607− holdIncremental v0 e = runFrame . runSpiderHostFrame $ Reflex.Class.holdIncremental v0 e
2608− {-# INLINABLE buildDynamic #-}
2609− buildDynamic getV0 e = runFrame . runSpiderHostFrame $ Reflex.Class.buildDynamic getV0 e
2610− {-# INLINABLE headE #-}
2611− headE e = runFrame . runSpiderHostFrame $ Reflex.Class.headE e
2612− {-# INLINABLE now #-}
2613− now = runFrame . runSpiderHostFrame $ Reflex.Class.now
2616−instance HasSpiderTimeline x => Reflex.Class.MonadSample (SpiderTimeline x) (SpiderHostFrame x) where
2617− sample = SpiderHostFrame . readBehaviorUntracked . unSpiderBehavior --TODO: This can cause problems with laziness, so we should get rid of it if we can
2619−instance HasSpiderTimeline x => Reflex.Class.MonadHold (SpiderTimeline x) (SpiderHostFrame x) where
2620− {-# INLINABLE hold #-}
2621− hold v0 e = SpiderHostFrame $ fmap (SpiderBehavior . behaviorHoldIdentity) $ Reflex.Spider.Internal.hold v0 $ coerce $ unSpiderEvent e
2622− {-# INLINABLE holdDyn #-}
2623− holdDyn v0 e = SpiderHostFrame $ fmap (SpiderDynamic . dynamicHoldIdentity) $ Reflex.Spider.Internal.hold v0 $ coerce $ unSpiderEvent e
2624− {-# INLINABLE holdIncremental #-}
2625− holdIncremental v0 e = SpiderHostFrame $ fmap (SpiderIncremental . dynamicHold) $ Reflex.Spider.Internal.hold v0 $ unSpiderEvent e
2626− {-# INLINABLE buildDynamic #-}
2627− buildDynamic getV0 e = SpiderHostFrame $ fmap (SpiderDynamic . dynamicDynIdentity) $ Reflex.Spider.Internal.buildDynamic (coerce getV0) $ coerce $ unSpiderEvent e
2628− {-# INLINABLE headE #-}
2629− headE = R.slowHeadE
2630−-- headE (SpiderEvent e) = SpiderHostFrame $ SpiderEvent <$> Reflex.Spider.Internal.headE e
2631− {-# INLINABLE now #-}
2632− now = SpiderHostFrame Reflex.Class.now
2634−instance HasSpiderTimeline x => Reflex.Class.MonadSample (SpiderTimeline x) (SpiderHost x) where
2635− {-# INLINABLE sample #-}
2636− sample = runFrame . readBehaviorUntracked . unSpiderBehavior
2638−instance HasSpiderTimeline x => Reflex.Class.MonadSample (SpiderTimeline x) (Reflex.Spider.Internal.ReadPhase x) where
2639− {-# INLINABLE sample #-}
2640− sample = Reflex.Spider.Internal.ReadPhase . Reflex.Class.sample
2642−instance HasSpiderTimeline x => Reflex.Class.MonadHold (SpiderTimeline x) (Reflex.Spider.Internal.ReadPhase x) where
2643− {-# INLINABLE hold #-}
2644− hold v0 e = Reflex.Spider.Internal.ReadPhase $ Reflex.Class.hold v0 e
2645− {-# INLINABLE holdDyn #-}
2646− holdDyn v0 e = Reflex.Spider.Internal.ReadPhase $ Reflex.Class.holdDyn v0 e
2647− {-# INLINABLE holdIncremental #-}
2648− holdIncremental v0 e = Reflex.Spider.Internal.ReadPhase $ Reflex.Class.holdIncremental v0 e
2649− {-# INLINABLE buildDynamic #-}
2650− buildDynamic getV0 e = Reflex.Spider.Internal.ReadPhase $ Reflex.Class.buildDynamic getV0 e
2651− {-# INLINABLE headE #-}
2652− headE e = Reflex.Spider.Internal.ReadPhase $ Reflex.Class.headE e
2653− {-# INLINABLE now #-}
2654− now = Reflex.Spider.Internal.ReadPhase Reflex.Class.now
2656−--------------------------------------------------------------------------------
2658−--------------------------------------------------------------------------------
2660−-- | 'SpiderEnv' is the old name for 'SpiderTimeline'
2661−{-# DEPRECATED SpiderEnv "Use 'SpiderTimelineEnv' instead" #-}
2662−type SpiderEnv = SpiderTimeline
2663−instance HasSpiderTimeline x => Reflex.Host.Class.MonadSubscribeEvent (SpiderTimeline x) (SpiderHostFrame x) where
2664− {-# INLINABLE subscribeEvent #-}
2665− subscribeEvent e = SpiderHostFrame $ do
2666− --TODO: Unsubscribe eventually (manually and/or with weak ref)
2667− val <- liftIO $ newIORef Nothing
2668− subscription <- subscribe (unSpiderEvent e) $ Subscriber
2669− { subscriberPropagate = \a -> do
2670− liftIO $ writeIORef val $ Just a
2672− , subscriberInvalidateHeight = \_ -> return ()
2673− , subscriberRecalculateHeight = \_ -> return ()
2675− return $ SpiderEventHandle
2676− { spiderEventHandleSubscription = subscription
2677− , spiderEventHandleValue = val
2680−instance HasSpiderTimeline x => Reflex.Host.Class.ReflexHost (SpiderTimeline x) where
2681− type EventTrigger (SpiderTimeline x) = RootTrigger x
2682− type EventHandle (SpiderTimeline x) = SpiderEventHandle x
2683− type HostFrame (SpiderTimeline x) = SpiderHostFrame x
2685−instance HasSpiderTimeline x => Reflex.Host.Class.MonadReadEvent (SpiderTimeline x) (Reflex.Spider.Internal.ReadPhase x) where
2686− {-# NOINLINE readEvent #-}
2687− readEvent h = Reflex.Spider.Internal.ReadPhase $ fmap (fmap return) $ liftIO $ do
2688− result <- readIORef $ spiderEventHandleValue h
2692−instance HasSpiderTimeline x => Reflex.Host.Class.MonadReflexCreateTrigger (SpiderTimeline x) (SpiderHost x) where
2693− newEventWithTrigger = SpiderHost . fmap SpiderEvent . newEventWithTriggerIO
2694− newFanEventWithTrigger f = SpiderHost $ do
2695− es <- newFanEventWithTriggerIO f
2696− return $ Reflex.Class.EventSelector $ SpiderEvent . Reflex.Spider.Internal.select es
2698−instance HasSpiderTimeline x => Reflex.Host.Class.MonadReflexCreateTrigger (SpiderTimeline x) (SpiderHostFrame x) where
2699− newEventWithTrigger = SpiderHostFrame . EventM . liftIO . fmap SpiderEvent . newEventWithTriggerIO
2700− newFanEventWithTrigger f = SpiderHostFrame $ EventM $ liftIO $ do
2701− es <- newFanEventWithTriggerIO f
2702− return $ Reflex.Class.EventSelector $ SpiderEvent . Reflex.Spider.Internal.select es
2704−instance HasSpiderTimeline x => Reflex.Host.Class.MonadSubscribeEvent (SpiderTimeline x) (SpiderHost x) where
2705− {-# INLINABLE subscribeEvent #-}
2706− subscribeEvent = runFrame . runSpiderHostFrame . Reflex.Host.Class.subscribeEvent
2708−instance HasSpiderTimeline x => Reflex.Host.Class.MonadReflexHost (SpiderTimeline x) (SpiderHost x) where
2709− type ReadPhase (SpiderHost x) = Reflex.Spider.Internal.ReadPhase x
2710− fireEventsAndRead es (Reflex.Spider.Internal.ReadPhase a) = run es a
2711− runHostFrame = runFrame . runSpiderHostFrame
2713unsafeNewSpiderTimelineEnv :: forall x. IO (SpiderTimelineEnv x)
1865unsafeNewSpiderTimelineEnv :: forall x. IO (SpiderTimelineEnv x)
2714unsafeNewSpiderTimelineEnv = do
1866unsafeNewSpiderTimelineEnv = do
@@ -2717,7 +1869,7 @@ unsafeNewSpiderTimelineEnv = do
2717#ifdef DEBUG
1869#ifdef DEBUG
2718 depthRef <- newIORef 0
1870 depthRef <- newIORef 0
2720− return $ STE $ SpiderTimelineEnv
1872+ return $ SpiderTimelineEnv
2721 { _spiderTimeline_lock = lock
1873 { _spiderTimeline_lock = lock
2722 , _spiderTimeline_eventEnv = env
1874 , _spiderTimeline_eventEnv = env
2723#ifdef DEBUG
1875#ifdef DEBUG
@@ -2727,59 +1879,65 @@ unsafeNewSpiderTimelineEnv = do
2728-- | Create a new SpiderTimelineEnv
1880-- | Create a new SpiderTimelineEnv
2729newSpiderTimeline :: IO (Some SpiderTimelineEnv)
1881newSpiderTimeline :: IO (Some SpiderTimelineEnv)
2730−newSpiderTimeline = withSpiderTimeline (pure . Some)
1882+newSpiderTimeline = withSpiderTimeline (pure . Some.This)
2732−data LocalSpiderTimeline (x :: Type) s
1884+-- | Pass a new timeline to the given function.
2733−
1885+withSpiderTimeline :: (forall x. SpiderTimelineEnv x -> IO r) -> IO r
2734−instance Reifies s (SpiderTimelineEnv x) =>
1886+withSpiderTimeline k = unsafeNewSpiderTimelineEnv >>= k
2735− HasSpiderTimeline (LocalSpiderTimeline x s) where
2736− spiderTimeline = localSpiderTimeline Proxy $ reflect (Proxy :: Proxy s)
2738−localSpiderTimeline
1888+newtype SpiderPullM x a = SpiderPullM (BehaviorM x a) deriving (Functor, Applicative, Monad, MonadIO, MonadFix)
2740− -> SpiderTimelineEnv x
2741− -> SpiderTimelineEnv (LocalSpiderTimeline x s)
2742−localSpiderTimeline _ = coerce
2744−-- | Pass a new timeline to the given function.
1890+newtype SpiderPushM x a = SpiderPushM (ComputeM x a) deriving (Functor, Applicative, Monad, MonadIO, MonadFix)
2745−withSpiderTimeline :: (forall x. HasSpiderTimeline x => SpiderTimelineEnv x -> IO r) -> IO r
2746−withSpiderTimeline k = do
2747− env <- unsafeNewSpiderTimelineEnv
2748− reify env $ \s -> k $ localSpiderTimeline s env
2750−newtype SpiderPullM (x :: Type) a = SpiderPullM (BehaviorM x a) deriving (Functor, Applicative, Monad, MonadIO, MonadFix)
1892+instance HasSpiderTimeline x => Functor (R.Dynamic (SpiderTimeline x)) where
1893+ fmap f = SpiderDynamic . newMapDyn f . unSpiderDynamic
2752−type ComputeM = EventM
1895+instance HasSpiderTimeline x => Applicative (R.Dynamic (SpiderTimeline x)) where
1896+ pure = SpiderDynamic . dynamicConst
1897+ SpiderDynamic a <*> SpiderDynamic b = SpiderDynamic $ zipDynWith ($) a b
2754−newtype SpiderPushM (x :: Type) a = SpiderPushM (ComputeM x a) deriving (Functor, Applicative, Monad, MonadIO, MonadFix)
1901+instance HasSpiderTimeline x => Monad (R.Dynamic (SpiderTimeline x)) where
1902+ {-# INLINE return #-}
1904+ {-# INLINE (>>=) #-}
1905+ x >>= f = SpiderDynamic $ dynamicDynIdentity $ newJoinDyn $ newMapDyn (unSpiderDynamic . f) $ unSpiderDynamic x
1906+ {-# INLINE (>>) #-}
1908+ {-# INLINE fail #-}
1909+ fail _ = error "Dynamic does not support 'fail'"
1911+#ifdef SPECIALIZE_TO_SPIDERTIMELINE_GLOBAL
1912+instance t ~ SpiderTimeline Global => R.Reflex t where
1913+ newtype Behavior t a = SpiderBehavior { unSpiderBehavior :: Behavior Global a }
1914+ newtype Event t a = SpiderEvent { unSpiderEvent :: Event Global a }
1915+ newtype Dynamic t a = SpiderDynamic { unSpiderDynamic :: Dynamic Global (Identity a) } -- deriving (Functor, Applicative, Monad)
1916+ newtype Incremental t p = SpiderIncremental { unSpiderIncremental :: Dynamic Global p }
1917+ type PullM t = SpiderPullM Global
1918+ type PushM t = SpiderPushM Global
2756instance HasSpiderTimeline x => R.Reflex (SpiderTimeline x) where
1920instance HasSpiderTimeline x => R.Reflex (SpiderTimeline x) where
2757 {-# SPECIALIZE instance R.Reflex (SpiderTimeline Global) #-}
1921 {-# SPECIALIZE instance R.Reflex (SpiderTimeline Global) #-}
2758 newtype Behavior (SpiderTimeline x) a = SpiderBehavior { unSpiderBehavior :: Behavior x a }
1922 newtype Behavior (SpiderTimeline x) a = SpiderBehavior { unSpiderBehavior :: Behavior x a }
2759 newtype Event (SpiderTimeline x) a = SpiderEvent { unSpiderEvent :: Event x a }
1923 newtype Event (SpiderTimeline x) a = SpiderEvent { unSpiderEvent :: Event x a }
2760− newtype Dynamic (SpiderTimeline x) a = SpiderDynamic { unSpiderDynamic :: DynamicS x (Identity a) } -- deriving (Functor, Applicative, Monad)
1924+ newtype Dynamic (SpiderTimeline x) a = SpiderDynamic { unSpiderDynamic :: Dynamic x (Identity a) } -- deriving (Functor, Applicative, Monad)
2761− newtype Incremental (SpiderTimeline x) p = SpiderIncremental { unSpiderIncremental :: DynamicS x p }
1925+ newtype Incremental (SpiderTimeline x) p = SpiderIncremental { unSpiderIncremental :: Dynamic x p }
2762 type PullM (SpiderTimeline x) = SpiderPullM x
1926 type PullM (SpiderTimeline x) = SpiderPullM x
2763 type PushM (SpiderTimeline x) = SpiderPushM x
1927 type PushM (SpiderTimeline x) = SpiderPushM x
2764 {-# INLINABLE never #-}
1929 {-# INLINABLE never #-}
2765 never = SpiderEvent eventNever
1930 never = SpiderEvent eventNever
2766 {-# INLINABLE constant #-}
1931 {-# INLINABLE constant #-}
2767 constant = SpiderBehavior . behaviorConst
1932 constant = SpiderBehavior . behaviorConst
2768 {-# INLINE push #-}
1933 {-# INLINE push #-}
2769 push f = SpiderEvent . push (coerce f) . unSpiderEvent
1934 push f = SpiderEvent . push (coerce f) . unSpiderEvent
2770− {-# INLINE pushCheap #-}
2771− pushCheap f = SpiderEvent . pushCheap (coerce f) . unSpiderEvent
2772 {-# INLINABLE pull #-}
1935 {-# INLINABLE pull #-}
2773 pull = SpiderBehavior . pull . coerce
1936 pull = SpiderBehavior . pull . coerce
2774− {-# INLINABLE fanG #-}
1937+ {-# INLINABLE merge #-}
2775− fanG e = R.EventSelectorG $ SpiderEvent . selectG (fanG (unSpiderEvent e))
1938+ merge = SpiderEvent . merge . dynamicConst . (coerce :: DMap k (R.Event (SpiderTimeline x)) -> DMap k (Event x))
2776− {-# INLINABLE mergeG #-}
1939+ {-# INLINABLE fan #-}
2777− mergeG
1940+ fan e = R.EventSelector $ SpiderEvent . select (fan (unSpiderEvent e))
2778− :: forall k2 (k :: k2 -> *) q (v :: k2 -> *). GCompare k
2779− => (forall a. q a -> R.Event (SpiderTimeline x) (v a))
2781− -> R.Event (SpiderTimeline x) (DMap k v)
2782− mergeG nt = SpiderEvent . mergeG (unSpiderEvent #. nt) . dynamicConst
2783 {-# INLINABLE switch #-}
1941 {-# INLINABLE switch #-}
2784 switch = SpiderEvent . switch . (coerce :: Behavior x (R.Event (SpiderTimeline x) a) -> Behavior x (Event x a)) . unSpiderBehavior
1942 switch = SpiderEvent . switch . (coerce :: Behavior x (R.Event (SpiderTimeline x) a) -> Behavior x (Event x a)) . unSpiderBehavior
2785 {-# INLINABLE coincidence #-}
1943 {-# INLINABLE coincidence #-}
@@ -2787,31 +1945,81 @@ instance HasSpiderTimeline x => R.Reflex (SpiderTimeline x) where
2787 {-# INLINABLE current #-}
1945 {-# INLINABLE current #-}
2788 current = SpiderBehavior . dynamicCurrent . unSpiderDynamic
1946 current = SpiderBehavior . dynamicCurrent . unSpiderDynamic
2789 {-# INLINABLE updated #-}
1947 {-# INLINABLE updated #-}
2790− updated = SpiderEvent #. dynamicUpdated .# fmap coerce . unSpiderDynamic
1948+ updated = SpiderEvent . fmap runIdentity . dynamicUpdated . unSpiderDynamic
2791 {-# INLINABLE unsafeBuildDynamic #-}
1949 {-# INLINABLE unsafeBuildDynamic #-}
2792− unsafeBuildDynamic readV0 v' = SpiderDynamic $ dynamicDynIdentity $ unsafeBuildDynamic (coerce readV0) $ coerce $ unSpiderEvent v'
1950+ unsafeBuildDynamic readV0 v' = SpiderDynamic $ dynamicDynIdentity $ unsafeDyn (coerce readV0) $ coerce $ unSpiderEvent v'
2793 {-# INLINABLE unsafeBuildIncremental #-}
1951 {-# INLINABLE unsafeBuildIncremental #-}
2794− unsafeBuildIncremental readV0 dv = SpiderIncremental $ dynamicDyn $ unsafeBuildDynamic (coerce readV0) $ unSpiderEvent dv
1952+ unsafeBuildIncremental readV0 dv = SpiderIncremental $ dynamicDyn $ unsafeDyn (coerce readV0) $ unSpiderEvent dv
2795− {-# INLINABLE mergeIncrementalG #-}
1953+ {-# INLINABLE mergeIncremental #-}
2796− mergeIncrementalG nt = SpiderEvent #. mergeG (coerce #. nt) .# unSpiderIncremental
1954+ mergeIncremental = SpiderEvent . merge . (unsafeCoerce :: Dynamic x (PatchDMap k (R.Event (SpiderTimeline x))) -> Dynamic x (PatchDMap k (Event x))) . unSpiderIncremental
2797− {-# INLINABLE mergeIncrementalWithMoveG #-}
2798− mergeIncrementalWithMoveG nt = SpiderEvent #. mergeWithMove (coerce #. nt) .# unSpiderIncremental
2799 {-# INLINABLE currentIncremental #-}
1955 {-# INLINABLE currentIncremental #-}
2800 currentIncremental = SpiderBehavior . dynamicCurrent . unSpiderIncremental
1956 currentIncremental = SpiderBehavior . dynamicCurrent . unSpiderIncremental
2801 {-# INLINABLE updatedIncremental #-}
1957 {-# INLINABLE updatedIncremental #-}
2802 updatedIncremental = SpiderEvent . dynamicUpdated . unSpiderIncremental
1958 updatedIncremental = SpiderEvent . dynamicUpdated . unSpiderIncremental
2803 {-# INLINABLE incrementalToDynamic #-}
1959 {-# INLINABLE incrementalToDynamic #-}
2804− incrementalToDynamic (SpiderIncremental i) = SpiderDynamic $ dynamicDynIdentity $ unsafeBuildDynamic (readBehaviorUntracked $ dynamicCurrent i) $ flip push (dynamicUpdated i) $ \p -> do
1960+ incrementalToDynamic (SpiderIncremental i) = SpiderDynamic $ dynamicDynIdentity $ unsafeDyn (readBehaviorUntracked $ dynamicCurrent i) $ flip push (dynamicUpdated i) $ \p -> do
2805 c <- readBehaviorUntracked $ dynamicCurrent i
1961 c <- readBehaviorUntracked $ dynamicCurrent i
2806 return $ Identity <$> apply p c --TODO: Avoid the redundant 'apply'
1962 return $ Identity <$> apply p c --TODO: Avoid the redundant 'apply'
2807 eventCoercion Coercion = Coercion
1963 eventCoercion Coercion = Coercion
2808 behaviorCoercion Coercion = Coercion
1964 behaviorCoercion Coercion = Coercion
2809− dynamicCoercion Coercion = Coercion
1965+ dynamicCoercion = unsafeCoerce --TODO: How can we avoid this unsafeCoerce? This is safe only because we know how Identity works as a Patch instance
2810− incrementalCoercion Coercion Coercion = Coercion
1966+
2811− {-# INLINABLE mergeIntIncremental #-}
1967+instance HasSpiderTimeline x => R.MonadSample (SpiderTimeline x) (EventM x) where
2812− mergeIntIncremental = SpiderEvent . mergeInt . coerce
1968+ {-# INLINABLE sample #-}
2813− {-# INLINABLE fanInt #-}
1969+ sample (SpiderBehavior b) = readBehaviorUntracked b
2814− fanInt e = R.EventSelectorInt $ SpiderEvent . selectInt (fanInt (unSpiderEvent e))
1970+
1971+instance HasSpiderTimeline x => R.MonadHold (SpiderTimeline x) (EventM x) where
1972+ {-# INLINABLE hold #-}
1973+ hold = holdSpiderEventM
1974+ {-# INLINABLE holdDyn #-}
1975+ holdDyn = holdDynSpiderEventM
1976+ {-# INLINABLE holdIncremental #-}
1977+ holdIncremental = holdIncrementalSpiderEventM
1979+holdSpiderEventM :: HasSpiderTimeline x => a -> R.Event (SpiderTimeline x) a -> EventM x (R.Behavior (SpiderTimeline x) a)
1980+holdSpiderEventM v0 e = fmap (SpiderBehavior . behaviorHoldIdentity) $ hold v0 $ coerce $ unSpiderEvent e
1982+holdDynSpiderEventM :: HasSpiderTimeline x => a -> R.Event (SpiderTimeline x) a -> EventM x (R.Dynamic (SpiderTimeline x) a)
1983+holdDynSpiderEventM v0 e = fmap (SpiderDynamic . dynamicHoldIdentity) $ hold v0 $ coerce $ unSpiderEvent e
1985+holdIncrementalSpiderEventM :: (HasSpiderTimeline x, Patch p) => PatchTarget p -> R.Event (SpiderTimeline x) p -> EventM x (R.Incremental (SpiderTimeline x) p)
1986+holdIncrementalSpiderEventM v0 e = fmap (SpiderIncremental . dynamicHold) $ hold v0 $ unSpiderEvent e
1988+instance HasSpiderTimeline x => R.MonadHold (SpiderTimeline x) (SpiderHost x) where
1989+ {-# INLINABLE hold #-}
1990+ hold v0 e = R.runHostFrame $ R.hold v0 e
1991+ {-# INLINABLE holdDyn #-}
1992+ holdDyn v0 e = R.runHostFrame $ R.holdDyn v0 e
1993+ {-# INLINABLE holdIncremental #-}
1994+ holdIncremental v0 e = R.runHostFrame $ R.holdIncremental v0 e
1996+instance HasSpiderTimeline x => R.MonadSample (SpiderTimeline x) (SpiderHost x) where
1997+ {-# INLINABLE sample #-}
1998+ sample = runFrame . readBehaviorUntracked . unSpiderBehavior
2001+#ifdef SPECIALIZE_TO_SPIDERTIMELINE_GLOBAL
2004+ ) => R.MonadSample (SpiderTimeline x) (SpiderPullM x) where
2005+ {-# INLINABLE sample #-}
2006+ sample = coerce . readBehaviorTracked . unSpiderBehavior
2009+#ifdef SPECIALIZE_TO_SPIDERTIMELINE_GLOBAL
2012+ ) => R.MonadSample (SpiderTimeline x) (SpiderPushM x) where
2013+ {-# INLINABLE sample #-}
2014+ sample (SpiderBehavior b) = SpiderPushM $ readBehaviorUntracked b
2016+instance HasSpiderTimeline x => R.MonadHold (SpiderTimeline x) (SpiderPushM x) where
2017+ {-# INLINABLE hold #-}
2018+ hold v0 e = R.current <$> R.holdDyn v0 e
2019+ {-# INLINABLE holdDyn #-}
2020+ holdDyn v0 (SpiderEvent e) = SpiderPushM $ fmap (SpiderDynamic . dynamicHoldIdentity) $ hold v0 $ coerce e
2021+ {-# INLINABLE holdIncremental #-}
2022+ holdIncremental v0 (SpiderEvent e) = SpiderPushM $ SpiderIncremental . dynamicHold <$> hold v0 e
2816data RootTrigger x a = forall k. GCompare k => RootTrigger (WeakBag (Subscriber x a), IORef (DMap k Identity), k a)
2024data RootTrigger x a = forall k. GCompare k => RootTrigger (WeakBag (Subscriber x a), IORef (DMap k Identity), k a)
@@ -2820,6 +2028,35 @@ data SpiderEventHandle x a = SpiderEventHandle
2820 , spiderEventHandleValue :: IORef (Maybe a)
2028 , spiderEventHandleValue :: IORef (Maybe a)
2031+instance HasSpiderTimeline x => R.MonadSubscribeEvent (SpiderTimeline x) (SpiderHostFrame x) where
2032+ {-# INLINABLE subscribeEvent #-}
2033+ subscribeEvent e = SpiderHostFrame $ do
2034+ --TODO: Unsubscribe eventually (manually and/or with weak ref)
2035+ val <- liftIO $ newIORef Nothing
2036+ subscription <- subscribe (unSpiderEvent e) $ Subscriber
2037+ { subscriberPropagate = \a -> do
2038+ liftIO $ writeIORef val $ Just a
2040+ , subscriberInvalidateHeight = \_ -> return ()
2041+ , subscriberRecalculateHeight = \_ -> return ()
2043+ return $ SpiderEventHandle
2044+ { spiderEventHandleSubscription = subscription
2045+ , spiderEventHandleValue = val
2048+instance HasSpiderTimeline x => R.ReflexHost (SpiderTimeline x) where
2049+ type EventTrigger (SpiderTimeline x) = RootTrigger x
2050+ type EventHandle (SpiderTimeline x) = SpiderEventHandle x
2051+ type HostFrame (SpiderTimeline x) = SpiderHostFrame x
2053+instance HasSpiderTimeline x => R.MonadReadEvent (SpiderTimeline x) (ReadPhase x) where
2054+ {-# NOINLINE readEvent #-}
2055+ readEvent h = ReadPhase $ fmap (fmap return) $ liftIO $ do
2056+ result <- readIORef $ spiderEventHandleValue h
2823instance MonadRef (EventM x) where
2060instance MonadRef (EventM x) where
2824 type Ref (EventM x) = Ref IO
2061 type Ref (EventM x) = Ref IO
2825 {-# INLINABLE newRef #-}
2062 {-# INLINABLE newRef #-}
@@ -2834,7 +2071,7 @@ instance MonadAtomicRef (EventM x) where
2834 atomicModifyRef r f = liftIO $ atomicModifyRef r f
2071 atomicModifyRef r f = liftIO $ atomicModifyRef r f
2836-- | The monad for actions that manipulate a Spider timeline identified by @x@
2073-- | The monad for actions that manipulate a Spider timeline identified by @x@
2837−newtype SpiderHost (x :: Type) a = SpiderHost { unSpiderHost :: IO a } deriving (Functor, Applicative, MonadFix, MonadIO, MonadException, MonadAsyncException)
2074+newtype SpiderHost x a = SpiderHost { unSpiderHost :: ReaderT (SpiderTimelineEnv x) IO a } deriving (Functor, Applicative, MonadFix, MonadIO, MonadException, MonadAsyncException)
2839instance Monad (SpiderHost x) where
2076instance Monad (SpiderHost x) where
2840 {-# INLINABLE (>>=) #-}
2077 {-# INLINABLE (>>=) #-}
@@ -2843,27 +2080,20 @@ instance Monad (SpiderHost x) where
2843 SpiderHost x >> SpiderHost y = SpiderHost $ x >> y
2080 SpiderHost x >> SpiderHost y = SpiderHost $ x >> y
2844 {-# INLINABLE return #-}
2081 {-# INLINABLE return #-}
2845 return x = SpiderHost $ return x
2082 return x = SpiderHost $ return x
2846−#if !MIN_VERSION_base(4,13,0)
2847− {-# INLINABLE fail #-}
2848− fail = MonadFail.fail
2851−instance MonadFail (SpiderHost x) where
2852 {-# INLINABLE fail #-}
2083 {-# INLINABLE fail #-}
2853− fail s = SpiderHost $ MonadFail.fail s
2084+ fail s = SpiderHost $ fail s
2855-- | Run an action affecting the global Spider timeline; this will be guarded by
2086-- | Run an action affecting the global Spider timeline; this will be guarded by
2856-- a mutex for that timeline
2087-- a mutex for that timeline
2857runSpiderHost :: SpiderHost Global a -> IO a
2088runSpiderHost :: SpiderHost Global a -> IO a
2858−runSpiderHost (SpiderHost a) = a
2089+runSpiderHost (SpiderHost a) = runReaderT a globalSpiderTimelineEnv
2860-- | Run an action affecting a given Spider timeline; this will be guarded by a
2091-- | Run an action affecting a given Spider timeline; this will be guarded by a
2861-- mutex for that timeline
2092-- mutex for that timeline
2862runSpiderHostForTimeline :: SpiderHost x a -> SpiderTimelineEnv x -> IO a
2093runSpiderHostForTimeline :: SpiderHost x a -> SpiderTimelineEnv x -> IO a
2863−runSpiderHostForTimeline (SpiderHost a) _ = a
2094+runSpiderHostForTimeline (SpiderHost a) = runReaderT a
2865−newtype SpiderHostFrame (x :: Type) a = SpiderHostFrame { runSpiderHostFrame :: EventM x a }
2096+newtype SpiderHostFrame x a = SpiderHostFrame { runSpiderHostFrame :: EventM x a } deriving (Functor, Applicative, MonadFix, MonadIO, MonadException, MonadAsyncException)
2866− deriving (Functor, Applicative, MonadFix, MonadIO, MonadException, MonadAsyncException)
2868instance Monad (SpiderHostFrame x) where
2098instance Monad (SpiderHostFrame x) where
2869 {-# INLINABLE (>>=) #-}
2099 {-# INLINABLE (>>=) #-}
@@ -2872,21 +2102,26 @@ instance Monad (SpiderHostFrame x) where
2872 SpiderHostFrame x >> SpiderHostFrame y = SpiderHostFrame $ x >> y
2102 SpiderHostFrame x >> SpiderHostFrame y = SpiderHostFrame $ x >> y
2873 {-# INLINABLE return #-}
2103 {-# INLINABLE return #-}
2874 return x = SpiderHostFrame $ return x
2104 return x = SpiderHostFrame $ return x
2875−#if !MIN_VERSION_base(4,13,0)
2876 {-# INLINABLE fail #-}
2105 {-# INLINABLE fail #-}
2877 fail s = SpiderHostFrame $ fail s
2106 fail s = SpiderHostFrame $ fail s
2880−instance NotReady (SpiderTimeline x) (SpiderHostFrame x) where
2108+instance HasSpiderTimeline x => R.MonadSample (SpiderTimeline x) (SpiderHostFrame x) where
2881− notReadyUntil _ = pure ()
2109+ sample = SpiderHostFrame . readBehaviorUntracked . unSpiderBehavior --TODO: This can cause problems with laziness, so we should get rid of it if we can
2884−newEventWithTriggerIO :: forall x a. HasSpiderTimeline x => (RootTrigger x a -> IO (IO ())) -> IO (Event x a)
2111+instance HasSpiderTimeline x => R.MonadHold (SpiderTimeline x) (SpiderHostFrame x) where
2112+ {-# INLINABLE hold #-}
2113+ hold v0 e = SpiderHostFrame $ fmap (SpiderBehavior . behaviorHoldIdentity) $ hold v0 $ coerce $ unSpiderEvent e
2114+ {-# INLINABLE holdDyn #-}
2115+ holdDyn v0 e = SpiderHostFrame $ fmap (SpiderDynamic . dynamicHoldIdentity) $ hold v0 $ coerce $ unSpiderEvent e
2116+ {-# INLINABLE holdIncremental #-}
2117+ holdIncremental v0 e = SpiderHostFrame $ fmap (SpiderIncremental . dynamicHold) $ hold v0 $ unSpiderEvent e
2119+newEventWithTriggerIO :: (RootTrigger x a -> IO (IO ())) -> IO (Event x a)
2885newEventWithTriggerIO f = do
2120newEventWithTriggerIO f = do
2886 es <- newFanEventWithTriggerIO $ \Refl -> f
2121 es <- newFanEventWithTriggerIO $ \Refl -> f
2887 return $ select es Refl
2122 return $ select es Refl
2889−newFanEventWithTriggerIO :: (HasSpiderTimeline x, GCompare k) => (forall a. k a -> RootTrigger x a -> IO (IO ())) -> IO (EventSelector x k)
2124+newFanEventWithTriggerIO :: GCompare k => (forall a. k a -> RootTrigger x a -> IO (IO ())) -> IO (EventSelector x k)
2890newFanEventWithTriggerIO f = do
2125newFanEventWithTriggerIO f = do
2891 occRef <- newIORef DMap.empty
2126 occRef <- newIORef DMap.empty
2892 subscribedRef <- newIORef DMap.empty
2127 subscribedRef <- newIORef DMap.empty
@@ -2897,8 +2132,49 @@ newFanEventWithTriggerIO f = do
2898 return $ EventSelector $ \k -> eventRoot k r
2133 return $ EventSelector $ \k -> eventRoot k r
2136+#ifdef SPECIALIZE_TO_SPIDERTIMELINE_GLOBAL
2139+ ) => R.MonadReflexCreateTrigger (SpiderTimeline x) (SpiderHost x) where
2140+ newEventWithTrigger = SpiderHost . lift . fmap SpiderEvent . newEventWithTriggerIO
2141+ newFanEventWithTrigger f = SpiderHost $ lift $ do
2142+ es <- newFanEventWithTriggerIO f
2143+ return $ R.EventSelector $ SpiderEvent . select es
2146+#ifdef SPECIALIZE_TO_SPIDERTIMELINE_GLOBAL
2149+ ) => R.MonadReflexCreateTrigger (SpiderTimeline x) (SpiderHostFrame x) where
2150+ newEventWithTrigger = SpiderHostFrame . EventM . liftIO . fmap SpiderEvent . newEventWithTriggerIO
2151+ newFanEventWithTrigger f = SpiderHostFrame $ EventM $ liftIO $ do
2152+ es <- newFanEventWithTriggerIO f
2153+ return $ R.EventSelector $ SpiderEvent . select es
2155+instance HasSpiderTimeline x => R.MonadSubscribeEvent (SpiderTimeline x) (SpiderHost x) where
2156+ {-# INLINABLE subscribeEvent #-}
2157+ subscribeEvent = runFrame . runSpiderHostFrame . R.subscribeEvent
2900newtype ReadPhase x a = ReadPhase (ResultM x a) deriving (Functor, Applicative, Monad, MonadFix)
2159newtype ReadPhase x a = ReadPhase (ResultM x a) deriving (Functor, Applicative, Monad, MonadFix)
2161+instance HasSpiderTimeline x => R.MonadSample (SpiderTimeline x) (ReadPhase x) where
2162+ {-# INLINABLE sample #-}
2163+ sample = ReadPhase . R.sample
2165+instance HasSpiderTimeline x => R.MonadHold (SpiderTimeline x) (ReadPhase x) where
2166+ {-# INLINABLE hold #-}
2167+ hold v0 e = ReadPhase $ R.hold v0 e
2168+ {-# INLINABLE holdDyn #-}
2169+ holdDyn v0 e = ReadPhase $ R.holdDyn v0 e
2170+ {-# INLINABLE holdIncremental #-}
2171+ holdIncremental v0 e = ReadPhase $ R.holdIncremental v0 e
2173+instance HasSpiderTimeline x => R.MonadReflexHost (SpiderTimeline x) (SpiderHost x) where
2174+ type ReadPhase (SpiderHost x) = ReadPhase x
2175+ fireEventsAndRead es (ReadPhase a) = run es a
2176+ runHostFrame = runFrame . runSpiderHostFrame
2902instance MonadRef (SpiderHost x) where
2178instance MonadRef (SpiderHost x) where
2903 type Ref (SpiderHost x) = Ref IO
2179 type Ref (SpiderHost x) = Ref IO
2904 newRef = SpiderHost . newRef
2180 newRef = SpiderHost . newRef
@@ -2921,10 +2197,9 @@ instance PrimMonad (SpiderHostFrame x) where
2921 type PrimState (SpiderHostFrame x) = PrimState IO
2197 type PrimState (SpiderHostFrame x) = PrimState IO
2922 primitive = SpiderHostFrame . EventM . primitive
2198 primitive = SpiderHostFrame . EventM . primitive
2924−instance NotReady (SpiderTimeline x) (SpiderHost x) where
2200+--------------------------------------------------------------------------------
2925− notReadyUntil _ = return ()
2201+-- Deprecated items
2926− notReady = return ()
2202+--------------------------------------------------------------------------------
2928−instance HasSpiderTimeline x => NotReady (SpiderTimeline x) (PerformEventT (SpiderTimeline x) (SpiderHost x)) where
2204+{-# DEPRECATED SpiderEnv "Use 'SpiderTimelineEnv' instead" #-}
2929− notReadyUntil _ = return ()
2205+type SpiderEnv = SpiderTimeline
2930− notReady = return ()