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implementation module ufpl
import StdArray
import StdBool
import StdClass
from StdFunc import const, flip, id, o
from StdGeneric import :: Bimap{..}, bimapId; bm :== bimapId
import StdInt
import StdList
import StdMisc
import StdOverloaded
import StdString
import StdTuple
from Data.Func import $
import Data.List
import Arduino
import Bootstrap
import C
import Util
typedfun :: CType String -> String
typedfun t f = flip (+++) f case t of
CTBool -> "b"
CTInt s -> sig s +++ "i"
CTChar s -> sig s +++ "c"
CTLong s -> sig s +++ "l"
where
sig :: Signedness -> String
sig Sig = ""
sig Unsig = "u"
append :: Shares Shares -> Shares
append NoShares ss = ss
append (Shares s ss) sss = Shares s (append ss sss)
removeDupShares :: Shares -> Shares
removeDupShares NoShares = NoShares
removeDupShares (Shares s ss) = if exists id (Shares s) (removeDupShares ss)
where
exists = any (\s` -> s.sname == s`) (sharesMap (\s -> s.sname) ss)
sharesMap :: (A.t rw: (Shared t rw) -> a) Shares -> [a]
sharesMap _ NoShares = []
sharesMap f (Shares s ss) = [f s:sharesMap f ss]
instance allShares [t] | allShares t
where
allShares` [] = NoShares
allShares` [x:xs] = append (allShares` x) (allShares` xs)
instance allShares (Expr t rw)
where
allShares` (ELit _) = NoShares
allShares` (EShared s) = Shares s NoShares
allShares` (a +. b) = append (allShares` a) (allShares` b)
allShares` (a -. b) = append (allShares` a) (allShares` b)
allShares` (a *. b) = append (allShares` a) (allShares` b)
allShares` (a /. b) = append (allShares` a) (allShares` b)
allShares` (EEq _ a b) = append (allShares` a) (allShares` b)
allShares` (ELt _ a b) = append (allShares` a) (allShares` b)
allShares` (EAnd _ a b) = append (allShares` a) (allShares` b)
allShares` (EOr _ a b) = append (allShares` a) (allShares` b)
allShares` (EIf b t e) = append (allShares` b) (append (allShares` t) (allShares` e))
instance allShares Trigger
where
allShares` (Change t) = allShares` t
allShares` (s ?= t) = append (allShares` s) (allShares` t)
allShares` (a ?& b) = append (allShares` a) (allShares` b)
allShares` (a ?| b) = append (allShares` a) (allShares` b)
instance allShares Rule
where
allShares` (s <# e) = append (allShares` s) (allShares` e)
allShares` (When t rs) = foldr1 append [allShares` t:map allShares` rs]
allShares` (t >>> rs) = foldr1 append [allShares` t:map allShares` rs]
allShares` (SetCursor (c,r)) = append (allShares` c) (allShares` r)
allShares` (Print v) = allShares` v
instance allShares NamedRule
where
allShares` (_ :=: r) = allShares` r
instance Expr Int where litExpr i = CEInt i
instance Expr Bool where litExpr b = CEBool b
instance Expr Char where litExpr c = CEChar c
lit :: (t -> Expr t RO)
lit = ELit
(?) infix 4 :: (Expr Bool rwa) (Expr t rwb, Expr t rwc) -> Expr t RO
(?) b (t,e) = EIf b t e
(==.) infix 4 :: (Expr t rwa) (Expr t rwb) -> Expr Bool RO | Expr, == t
(==.) a b = EEq bm a b
(<.) infix 4 :: (Expr t rwa) (Expr t rwb) -> Expr Bool RO | Expr, < t
(<.) a b = ELt bm a b
(>.) infix 4 :: (Expr t rwa) (Expr t rwb) -> Expr Bool RO | Expr, < t
(>.) a b = ELt bm b a
(&&.) infixr 3 :: (Expr Bool rwa) (Expr Bool rwb) -> Expr Bool RO
(&&.) a b = EAnd bm a b
(||.) infixr 4 :: (Expr Bool rwa) (Expr Bool rwb) -> Expr Bool RO
(||.) a b = EOr bm a b
instance :. Rule where (:.) a b = [a,b]
instance :. [Rule] where (:.) r rs = [r:rs]
instance ||| NamedRule where (|||) a b = [a,b]
instance ||| [NamedRule] where (|||) r rs = [r:rs]
instance gen (Expr t rw) CExpr | Expr t
where
gen (ELit v) = litExpr v
gen (EShared s) = CEGlobal ("s" +++ s.sname +++ ".val")
gen (a +. b) = CEInfix "+" (gen a) (gen b)
gen (a -. b) = CEInfix "-" (gen a) (gen b)
gen (a *. b) = CEInfix "*" (gen a) (gen b)
gen (a /. b) = CEInfix "/" (gen a) (gen b)
gen (EEq _ a b) = CEInfix "==" (gen a) (gen b)
gen (ELt _ a b) = CEInfix "<" (gen a) (gen b)
gen (EAnd _ a b) = CEInfix "&&" (gen a) (gen b)
gen (EOr _ a b) = CEInfix "||" (gen a) (gen b)
gen (EIf b t e) = CEIf (gen b) (gen t) (gen e)
instance gen Trigger CExpr
where
gen (Change (EShared shr)) = CEApp (typedfun shr.stype "dirty") [CERef (CEGlobal ("s" +++ shr.sname))]
gen (EShared shr ?= e) = CEInfix "&&" (gen (Change (EShared shr))) (CEInfix "==" (CEGlobal ("s" +++ shr.sname +++ ".val")) (gen e))
gen (a ?& b) = CEInfix "&&" (gen a) (gen b)
gen (a ?| b) = CEInfix "||" (gen a) (gen b)
instance gen Rule CBody
where
gen (EShared shr <# val) = CBExpr (CEApp (typedfun shr.stype "set") [CERef (CEGlobal ("s" +++ shr.sname)), gen val])
gen (When b rs) = CBIf (gen b) (gen rs) CBEmpty
gen (t >>> rs) = CBIf (gen t) (gen rs) CBEmpty
gen (SetCursor (c,r)) = CBExpr (CEApp "lcd.setCursor" [gen c, gen r])
gen (Print e) = CBExpr (CEApp "lcd.print" [gen e])
instance gen [r] CBody | gen r CBody
where
gen [] = CBEmpty
gen rs = foldr1 CBSeq (map gen rs)
instance gen NamedRule CFun
where
gen (name :=: rs) =
{ params = []
, body = gen rs
, fresh = 0
, type = CTVoid
, name = "t" +++ name
}
instance gen (Shared t rw) CVar
where
gen shr =
{ name = "s" +++ shr.sname
, type = CTStruct (typedfun shr.stype "share")
, value = CEStruct
[ ("val", shr.srepr.map_to shr.sinit)
, ("dirty", CEInt 0)
, ("subscriptions", CEInt 0)
]
}
instance gen [NamedRule] String
where
gen rs = foldl1 (+++) $
[rts] ++
["\n" +++ printToString var \\ var <- sharesMap genv (allShares rs)] ++
["\n" +++ printToString (genf rule) \\ rule <- rs]
where
genf :: (NamedRule -> CFun)
genf = gen
genv :: ((Shared t rw) -> CVar)
genv = gen
Start :: String
Start = gen example_score
example_score :: [NamedRule]
example_score =
"a" :=: b0 ?= true >>> [scorea <# scorea +. lit 1]
||| "b" :=: b1 ?= true >>> [scoreb <# scoreb +. lit 1]
||| "r" :=: b2 ?= true >>> [scorea <# lit 0, scoreb <# lit 0]
||| "print" :=: Change scorea ?| Change scoreb >>>
SetCursor (lit 0, lit 0) :.
Print scorea :.
Print (lit '-') :.
Print scoreb
where
scorea = rwInt "scorea" 0
scoreb = rwInt "scoreb" 0
example_countdown :: [NamedRule]
example_countdown =
"time" :=:
When (millis -. DELAY >. counter)
(counter <# counter +. DELAY :.
seconds <# seconds -. lit 1 :.
SetCursor (lit 0, lit 0) :.
Print minutes :.
Print (lit ':') :.
Print seconds)
:. When (seconds ==. lit 0) (seconds <# lit 60 :. minutes <# minutes -. lit 1)
||| "status" :=:
When (seconds ==. lit 60 &&. minutes ==. lit 0) [running <# false]
where
running = rwBool "running" False
minutes = rwUInt "minutes" 0
seconds = rwUInt "seconds" 0
counter = rwULong "counter" 1000 // If set to 0, this will overflow on first iteration
DELAY = lit 1000
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