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implementation module uFPL.Sim
from StdFunc import flip, seq
from Data.Func import $
import Data.Functor
import qualified Data.Map as M
import Data.Maybe
import Data.Tuple
from Text import <+
import Text.HTML
import iTasks
import iTasks.UI.Editor.Common
import uFPL
import uFPL.Bootstrap
import uFPL.C
derive class iTask UFPLException
instance toString UFPLException
where
toString (LiftException s) = "Lift exception: " +++ s
toString (NoShareException s) = "No such share: " +++ s
toString (WriteToROShare s) = "Write to RO share: " +++ s
toString RunException = "Could not run"
derive class iTask Signedness, CType, ReadOrWrite, IShared, IExpr, ITrigger,
IRule, INamedRule, IState, IShareState, Display
class lift a :: a -> Task Dynamic
class unlift a b :: b -> a
istate :: Shared IState
istate = sharedStore "state" gDefault{|*|}
irules :: Shared [INamedRule]
irules = sharedStore "irules" []
ishares :: Shared IShares
ishares = sharedStore "ishares" gDefault{|*|}
getShared :: ISharedRef -> Task Dynamic
getShared n = get ishares >>= \shrs -> case filter ((==) n o isharedName) shrs of
[] -> throw (NoShareException n)
[s:_] -> lift s
isharedName :: IShared -> String
isharedName (ISharedInt n _ _) = n
isharedName (ISharedUInt n _ _) = n
isharedName (ISharedLong n _ _) = n
isharedName (ISharedULong n _ _) = n
isharedName (ISharedBool n _ _) = n
isharedInit :: IShared -> Dynamic
isharedInit (ISharedInt _ i _) = dynamic i
isharedInit (ISharedUInt _ i _) = dynamic i
isharedInit (ISharedLong _ i _) = dynamic i
isharedInit (ISharedULong _ i _) = dynamic i
isharedInit (ISharedBool _ i _) = dynamic i
instance lift [a] | lift a
where
lift xs = dynamicList <$> allTasks (map lift xs)
where
dynamicList :: [Dynamic] -> Dynamic
dynamicList ds = list (reverse ds) (dynamic [] :: A.a: [a])
where
list :: [Dynamic] Dynamic -> Dynamic
list [] d = d
list [(d :: t):r] (l :: [t]) = list r (dynamic [d:l])
instance unlift [a] [b] | unlift a b where unlift xs = map unlift xs
instance lift IExpr
where
lift (ILitInt i) = return (dynamic ELit i :: Expr Int RO)
lift (ILitBool b) = return (dynamic ELit b :: Expr Bool RO)
lift (ILitChar c) = return (dynamic ELit c :: Expr Char RO)
lift (IShared s) = getShared s >>= \s -> case s of (s :: UShared t rw) -> return (dynamic EShared s)
lift (IAdd a b) = lift a >>= \a -> lift b >>= \b -> case (a,b) of
(a :: Expr Int rwa, b :: Expr Int rwb) -> return (dynamic a +. b :: Expr Int RO)
(a :: Expr Char rwa, b :: Expr Char rwb) -> return (dynamic a +. b :: Expr Char RO)
_ -> throw (LiftException "IAdd")
lift (ISub a b) = lift a >>= \a -> lift b >>= \b -> case (a,b) of
(a :: Expr Int rwa, b :: Expr Int rwb) -> return (dynamic a -. b :: Expr Int RO)
(a :: Expr Char rwa, b :: Expr Char rwb) -> return (dynamic a -. b :: Expr Char RO)
_ -> throw (LiftException "ISub")
lift (IMul a b) = lift a >>= \a -> lift b >>= \b -> case (a,b) of
(a :: Expr Int rwa, b :: Expr Int rwb) -> return (dynamic a *. b :: Expr Int RO)
_ -> throw (LiftException "IMul")
lift (IDiv a b) = lift a >>= \a -> lift b >>= \b -> case (a,b) of
(a :: Expr Int rwa, b :: Expr Int rwb) -> return (dynamic a /. b :: Expr Int RO)
_ -> throw (LiftException "IDiv")
lift (IEq a b) = lift a >>= \a -> lift b >>= \b -> case (a,b) of
(a :: Expr Int rwa, b :: Expr Int rwb) -> return (dynamic a ==. b :: Expr Bool RO)
(a :: Expr Char rwa, b :: Expr Char rwb) -> return (dynamic a ==. b :: Expr Bool RO)
(a :: Expr Bool rwa, b :: Expr Bool rwb) -> return (dynamic a ==. b :: Expr Bool RO)
_ -> throw (LiftException "IEq")
lift (ILt a b) = lift a >>= \a -> lift b >>= \b -> case (a,b) of
(a :: Expr Int rwa, b :: Expr Int rwb) -> return (dynamic a <. b :: Expr Bool RO)
(a :: Expr Char rwa, b :: Expr Char rwb) -> return (dynamic a <. b :: Expr Bool RO)
_ -> throw (LiftException "ILt")
lift (IAnd a b) = lift a >>= \a -> lift b >>= \b -> case (a,b) of
(a :: Expr Bool rwa, b :: Expr Bool rwb) -> return (dynamic a &&. b :: Expr Bool RO)
_ -> throw (LiftException "IAnd")
lift (IOr a b) = lift a >>= \a -> lift b >>= \b -> case (a,b) of
(a :: Expr Bool rwa, b :: Expr Bool rwb) -> return (dynamic a ||. b :: Expr Bool RO)
_ -> throw (LiftException "IOr")
lift (IIf b t e) = lift b >>= \b -> lift t >>= \t -> lift e >>= \e -> case (b,t,e) of
(b :: Expr Bool rwa, t :: Expr Int rwb, e :: Expr Int rwc) -> return (dynamic b ? (t,e) :: Expr Int RO)
(b :: Expr Bool rwa, t :: Expr Char rwb, e :: Expr Char rwc) -> return (dynamic b ? (t,e) :: Expr Char RO)
(b :: Expr Bool rwa, t :: Expr Bool rwb, e :: Expr Bool rwc) -> return (dynamic b ? (t,e) :: Expr Bool RO)
_ -> throw (LiftException "IIf")
instance unlift IExpr (Expr t rw) | Expr t
where
unlift (ELit v) = case dynamic v of
(i :: Int) -> ILitInt i
(c :: Char) -> ILitChar c
(b :: Bool) -> ILitBool b
unlift (EShared s) = IShared s.sname
unlift (a +. b) = IAdd (unlift a) (unlift b)
unlift (a -. b) = ISub (unlift a) (unlift b)
unlift (a *. b) = IMul (unlift a) (unlift b)
unlift (a /. b) = IDiv (unlift a) (unlift b)
unlift (EEq _ a b) = IEq (unlift a) (unlift b)
unlift (ELt _ a b) = ILt (unlift a) (unlift b)
unlift (EAnd _ a b) = IAnd (unlift a) (unlift b)
unlift (EOr _ a b) = IOr (unlift a) (unlift b)
unlift (EIf b t e) = IIf (unlift b) (unlift t) (unlift e)
instance lift IShared
where
lift s = return case s of
ISharedInt n i ReadOnly -> dynamic {sname=n, stype=CTInt Sig, sinit=i, srepr=intmap, srw=RO}
ISharedInt n i ReadWrite -> dynamic {sname=n, stype=CTInt Sig, sinit=i, srepr=intmap, srw=RW}
ISharedUInt n i ReadOnly -> dynamic {sname=n, stype=CTInt Unsig, sinit=i, srepr=intmap, srw=RO}
ISharedUInt n i ReadWrite -> dynamic {sname=n, stype=CTInt Unsig, sinit=i, srepr=intmap, srw=RW}
ISharedLong n i ReadOnly -> dynamic {sname=n, stype=CTLong Sig, sinit=i, srepr=longmap, srw=RO}
ISharedLong n i ReadWrite -> dynamic {sname=n, stype=CTLong Sig, sinit=i, srepr=longmap, srw=RW}
ISharedULong n i ReadOnly -> dynamic {sname=n, stype=CTLong Unsig, sinit=i, srepr=longmap, srw=RO}
ISharedULong n i ReadWrite -> dynamic {sname=n, stype=CTLong Unsig, sinit=i, srepr=longmap, srw=RW}
ISharedBool n i ReadOnly -> dynamic {sname=n, stype=CTBool, sinit=i, srepr=boolmap, srw=RO}
ISharedBool n i ReadWrite -> dynamic {sname=n, stype=CTBool, sinit=i, srepr=boolmap, srw=RW}
// NOTE: Compiler doesn't allow instances for both Int and Bool or RW and RO,
// so we use dynamics and ABC code here. Otherwise, there would have been
// separate instances for UShared Int RO, UShared Int RW, etc.
// If rw = RO, we get ReadOnly. In all other cases, we get ReadWrite.
instance unlift IShared (UShared t rw) | Expr t
where
unlift s = case dynamic s.sinit of
(b :: Bool) -> ISharedBool s.sname b (rw s.srw)
(i :: Int) -> cons s.sname i (rw s.srw)
where
cons = case s.stype of
CTInt Sig -> ISharedInt
CTInt Unsig -> ISharedUInt
CTLong Sig -> ISharedLong
CTLong Unsig -> ISharedULong
rw :: !a -> ReadOrWrite
rw _ = code {
eq_desc e_uFPL_dRO 0 0
jmp_true readonly
fillh e_uFPL.Sim_dReadWrite 0 1
pop_a 1
.d 1 0
rtn
:readonly
fillh e_uFPL.Sim_dReadOnly 0 1
pop_a 1
.d 1 0
rtn
}
instance unlift IShares Shares
where
unlift NoShares = []
unlift (Shares shr rest) = [unlift shr:unlift rest]
instance lift ITrigger
where
lift (IChange s) = getShared s >>= \s -> case s of
(s :: UShared Int rw) -> return (dynamic Change (EShared s))
_ -> throw (LiftException "IChange")
lift (IBecomes s e) = getShared s >>= \s -> lift e >>= \e -> case (s,e) of
(s :: UShared Int rwa, e :: Expr Int rwb) -> return (dynamic EShared s ?= e)
(s :: UShared Char rwa, e :: Expr Char rwb) -> return (dynamic EShared s ?= e)
(s :: UShared Bool rwa, e :: Expr Bool rwb) -> return (dynamic EShared s ?= e)
_ -> throw (LiftException "IBecomes")
lift (ITAnd a b) = lift a >>= \a -> lift b >>= \b -> case (a,b) of
(a :: Trigger, b :: Trigger) -> return (dynamic a ?& b)
_ -> throw (LiftException "ITAnd")
lift (ITOr a b) = lift a >>= \a -> lift b >>= \b -> case (a,b) of
(a :: Trigger, b :: Trigger) -> return (dynamic a ?| b)
_ -> throw (LiftException "ITOr")
instance unlift ITrigger Trigger
where
unlift (Change (EShared s)) = IChange s.sname
unlift (EShared s ?= e) = IBecomes s.sname (unlift e)
unlift (a ?& b) = ITAnd (unlift a) (unlift b)
unlift (a ?| b) = ITOr (unlift a) (unlift b)
instance lift IRule
where
lift (IAssign s e) = getShared s >>= \s -> lift e >>= \e -> case (s,e) of
(s :: UShared Int RW, e :: Expr Int rw) -> return (dynamic EShared s <# e)
(s :: UShared Char RW, e :: Expr Char rw) -> return (dynamic EShared s <# e)
(s :: UShared Bool RW, e :: Expr Bool rw) -> return (dynamic EShared s <# e)
(s :: UShared t RO, _) -> throw (WriteToROShare s.sname)
(t :: UShared t rw, _ :: Expr u rwb) -> throw $ LiftException $
"IAssign: cannot assign " <+ typeCodeOfDynamic e <+
" to " <+ typeCodeOfDynamic s <+ " " <+ t.sname <+ "."
_ -> throw (LiftException "IAssign")
lift (IWhen e rs) = lift e >>= \e -> lift rs >>= \rs -> case (e,rs) of
(e :: Expr Bool rw, rs :: [Rule]) -> return (dynamic When e rs)
_ -> throw (LiftException "IWhen")
lift (ITrigger t rs) = lift t >>= \t -> lift rs >>= \rs -> case (t,rs) of
(t :: Trigger, rs :: [Rule]) -> return (dynamic t >>> rs)
_ -> throw (LiftException "IWhen")
lift (ISetCursor (c,r)) = lift c >>= \c -> lift r >>= \r -> case (c,r) of
(c :: Expr Int rwa, r :: Expr Int rwb) -> return (dynamic SetCursor (c,r))
_ -> throw (LiftException "ISetCursor")
lift (IPrint e) = lift e >>= \e -> case e of
(e :: Expr Int rw) -> return (dynamic Print e)
(e :: Expr Char rw) -> return (dynamic Print e)
(e :: Expr Bool rw) -> return (dynamic Print e)
_ -> throw (LiftException "IPrint")
instance unlift IRule Rule
where
unlift (EShared s <# e) = IAssign s.sname (unlift e)
unlift (When e rs) = IWhen (unlift e) (unlift rs)
unlift (t >>> rs) = ITrigger (unlift t) (unlift rs)
unlift (SetCursor (c,r)) = ISetCursor (unlift c, unlift r)
unlift (Print e) = IPrint (unlift e)
instance lift INamedRule
where
lift (Rule s rs) = lift rs >>= \rs -> case rs of
(rs :: [Rule]) -> return (dynamic s :=: rs)
instance unlift INamedRule NamedRule
where
unlift (s :=: rs) = case dynamic rs of
(r :: Rule) -> Rule s [unlift r]
(rs :: [Rule]) -> Rule s (unlift rs)
instance lift IState
where
lift ist = return (dynamic
{ display = ist.IState.display
, vars = 'M'.fromList $
map (appSnd liftSharedState) ('M'.toList ist.isvalues) ++
map (appSnd liftSharedState) ('M'.toList ist.csvalues) ++
map (appSnd liftSharedState) ('M'.toList ist.bsvalues)
})
where
liftSharedState :: (IShareState t) -> ShareState | TC t
liftSharedState st = {val=dynamic st.isval, dirty=st.isdirty, subscriptions=st.issubscriptions}
instance unlift IState State
where
unlift st =
{ isvalues = 'M'.fromList [(n,{isval=v,isdirty=s.dirty,issubscriptions=s.subscriptions}) \\ (n,s=:{val=v :: Int}) <- 'M'.toList st.vars]
, csvalues = 'M'.fromList [(n,{isval=v,isdirty=s.dirty,issubscriptions=s.subscriptions}) \\ (n,s=:{val=v :: Char}) <- 'M'.toList st.vars]
, bsvalues = 'M'.fromList [(n,{isval=v,isdirty=s.dirty,issubscriptions=s.subscriptions}) \\ (n,s=:{val=v :: Bool}) <- 'M'.toList st.vars]
, display = st.State.display
}
simulate :: [NamedRule] -> *World -> *World
simulate rs = startEngine (setupShares >>| sim)
where
setupShares =
set (unlift (allShares rs)) ishares >>|
set (unlift rs) irules
sim =
(updateSharedInformation (Title "Rules") [] irules
-&&- updateSharedInformation (Title "Shares") [] ishares
) -&&-
(show -&&- check)
<<@ ArrangeHorizontal
show :: Task IState
show = whileUnchanged (irules >*< ishares) (\(_,shrs) ->
newShares shrs >>|
viewSharedInformation (Title "State") [viewAsLists] istate)
where
newShares :: IShares -> Task IState
newShares shrs = get istate >>= lift >>= \ist -> case ist of
(st :: State) -> set (unlift
{ st & vars = foldr (uncurry 'M'.put) st.vars
[(isharedName shr, {val=isharedInit shr, dirty=0, subscriptions=0}) \\ shr <- shrs]}) istate
viewAsLists = ViewUsing tolists $ container3 listView listView listView
with
listView :: Editor [(String,IShareState a)] | iTask, == a
listView = listEditor Nothing False False Nothing itemView
itemView :: Editor (String, IShareState a) | iTask, == a
itemView = comapEditorValue
(\(s,shr) -> (s, shr.isval, shr.isdirty, shr.issubscriptions))
(listitem4
textView
gEditor{|*|}
(intView "Dirty")
(intView "Subscriptions")
<<@ directionAttr Horizontal)
with
intView s = comapEditorValue (\i -> s <+ ": " <+ i) textView
tolists :: IState -> ([(String, IShareState Int)], [(String, IShareState Char)], [(String, IShareState Bool)])
tolists st = ('M'.toList st.isvalues, 'M'.toList st.csvalues, 'M'.toList st.bsvalues)
check :: Task String
check = whileUnchanged (irules >*< ishares) (\(rs,shrs) -> catchAll (lift rs >>| return "OK") return
>>= viewInformation (Title "Status")
[ViewUsing id $ viewComponent (\text -> 'M'.unions
[ valueAttr (JSONString (escapeStr text))
, styleAttr (if (text == "OK") "" "color:red;font-weight:bold;")
]) UITextView]
>>*
buttonActions shrs ++
millisActions shrs ++
[action "Step" $ step])
where
action :: String (Task a) -> TaskCont String (Task String) | iTask a
action s t = OnAction (Action s) $ ifOk $ t >>| check
ifOk :: a (TaskValue String) -> Maybe a
ifOk t (Value "OK" _) = Just t
ifOk _ _ = Nothing
step :: Task IState
step = get istate >>= lift >>= \st -> case st of
(st :: State) -> get irules >>= lift >>= \rs -> case rs of
(rs :: [NamedRule]) -> case run rs st of
Just st -> set (unlift st) istate
Nothing -> throw RunException
_ -> throw (LiftException "step rules")
_ -> throw (LiftException "step state")
buttonActions :: IShares -> [TaskCont String (Task String)]
buttonActions shrs =
[action ("Toggle B" <+ i) $ press i \\ i <- [0..5] | any ((==) ("b" <+ i) o isharedName) shrs]
where
press :: Int -> Task IState
press i = get istate >>= lift >>= \st -> case st of
(st :: State) -> set (unlift {st & vars='M'.alter upd ("b" <+ i) st.vars}) istate
with upd (Just s=:{val=v :: Bool}) = Just {s & val=dynamic not v, dirty=s.subscriptions}
millisActions :: IShares -> [TaskCont String (Task String)]
millisActions shrs
| any ((==) "millis" o isharedName) shrs =
[ action "Millis +100" $ addMillis 100
, action "Millis +1000" $ addMillis 1000
]
| otherwise = []
where
addMillis :: Int -> Task IState
addMillis n = get istate >>= lift >>= \st -> case st of
(st :: State) -> set (unlift {st & vars='M'.alter upd "millis" st.vars}) istate
with upd (Just s=:{val=v :: Int}) = Just {s & val=dynamic v+n, dirty=s.subscriptions}
// From iTasks.UI.Editor.Controls
viewComponent toAttributes type = {Editor|genUI=genUI,onEdit=onEdit,onRefresh=onRefresh}
where
genUI dp val vst
= (Ok (uia type (toAttributes val), FieldMask {touched = False, valid = True, state = JSONNull}),vst)
onEdit dp (tp,e) val mask vst
= (Error "Edit event for view component",val,vst)
onRefresh dp new old mask vst
= case [SetAttribute nk nv \\ ((ok,ov),(nk,nv)) <- zip ('M'.toList (toAttributes old),'M'.toList (toAttributes new)) | ok == nk && ov =!= nv] of
[] = (Ok (NoChange,mask),new,vst)
changes = (Ok (ChangeUI changes [],mask),new,vst)
|