Haskell. [WDP 94/11])
\begin{code}
-{-# OPTIONS -w #-}
--- The above warning supression flag is a temporary kludge.
--- While working on this module you are encouraged to remove it and fix
--- any warnings in the module. See
--- http://hackage.haskell.org/trac/ghc/wiki/Commentary/CodingStyle#Warnings
--- for details
-
module IdInfo (
GlobalIdDetails(..), notGlobalId, -- Not abstract
import NewDemand
import Outputable
import Module
+import FastString
import Data.Maybe
To be removed later
\begin{code}
--- setAllStrictnessInfo :: IdInfo -> Maybe StrictSig -> IdInfo
-- Set old and new strictness info
+setAllStrictnessInfo :: IdInfo -> Maybe StrictSig -> IdInfo
setAllStrictnessInfo info Nothing
= info { newStrictnessInfo = Nothing
#ifdef OLD_STRICTNESS
#endif
}
+seqNewStrictnessInfo :: Maybe StrictSig -> ()
seqNewStrictnessInfo Nothing = ()
seqNewStrictnessInfo (Just ty) = seqStrictSig ty
+pprNewStrictness :: Maybe StrictSig -> SDoc
pprNewStrictness Nothing = empty
pprNewStrictness (Just sig) = ftext FSLIT("Str:") <+> ppr sig
\begin{code}
+seqNewDemandInfo :: Maybe Demand -> ()
seqNewDemandInfo Nothing = ()
seqNewDemandInfo (Just dmd) = seqDemand dmd
\end{code}
| NotGlobalId -- Used as a convenient extra return value from globalIdDetails
+notGlobalId :: GlobalIdDetails
notGlobalId = NotGlobalId
instance Outputable GlobalIdDetails where
Setters
\begin{code}
+setWorkerInfo :: IdInfo -> WorkerInfo -> IdInfo
setWorkerInfo info wk = wk `seq` info { workerInfo = wk }
+setSpecInfo :: IdInfo -> SpecInfo -> IdInfo
setSpecInfo info sp = sp `seq` info { specInfo = sp }
+setInlinePragInfo :: IdInfo -> InlinePragInfo -> IdInfo
setInlinePragInfo info pr = pr `seq` info { inlinePragInfo = pr }
+setOccInfo :: IdInfo -> OccInfo -> IdInfo
setOccInfo info oc = oc `seq` info { occInfo = oc }
#ifdef OLD_STRICTNESS
setStrictnessInfo info st = st `seq` info { strictnessInfo = st }
#endif
-- Try to avoid spack leaks by seq'ing
+setUnfoldingInfoLazily :: IdInfo -> Unfolding -> IdInfo
setUnfoldingInfoLazily info uf -- Lazy variant to avoid looking at the
= -- unfolding of an imported Id unless necessary
info { unfoldingInfo = uf } -- (In this case the demand-zapping is redundant.)
+setUnfoldingInfo :: IdInfo -> Unfolding -> IdInfo
setUnfoldingInfo info uf
-- We do *not* seq on the unfolding info, For some reason, doing so
-- actually increases residency significantly.
setCprInfo info cp = info { cprInfo = cp }
#endif
+setArityInfo :: IdInfo -> ArityInfo -> IdInfo
setArityInfo info ar = info { arityInfo = ar }
+setCafInfo :: IdInfo -> CafInfo -> IdInfo
setCafInfo info caf = info { cafInfo = caf }
+setLBVarInfo :: IdInfo -> LBVarInfo -> IdInfo
setLBVarInfo info lb = {-lb `seq`-} info { lbvarInfo = lb }
+setNewDemandInfo :: IdInfo -> Maybe Demand -> IdInfo
setNewDemandInfo info dd = dd `seq` info { newDemandInfo = dd }
+setNewStrictnessInfo :: IdInfo -> Maybe StrictSig -> IdInfo
setNewStrictnessInfo info dd = dd `seq` info { newStrictnessInfo = dd }
\end{code}
newStrictnessInfo = Nothing
}
+noCafIdInfo :: IdInfo
noCafIdInfo = vanillaIdInfo `setCafInfo` NoCafRefs
-- Used for built-in type Ids in MkId.
\end{code}
-- The arity might increase later in the compilation process, if
-- an extra lambda floats up to the binding site.
+unknownArity :: Arity
unknownArity = 0 :: Arity
+ppArityInfo :: Int -> SDoc
ppArityInfo 0 = empty
ppArityInfo n = hsep [ptext SLIT("Arity"), int n]
\end{code}
where
set_head rule = rule { ru_fn = fn }
+seqSpecInfo :: SpecInfo -> ()
seqSpecInfo (SpecInfo rules fvs) = seqRules rules `seq` seqVarSet fvs
\end{code}
seqWorker (HasWorker id a) = id `seq` a `seq` ()
seqWorker NoWorker = ()
+ppWorkerInfo :: WorkerInfo -> SDoc
ppWorkerInfo NoWorker = empty
ppWorkerInfo (HasWorker wk_id _) = ptext SLIT("Worker") <+> ppr wk_id
workerId :: WorkerInfo -> Id
workerId (HasWorker id _) = id
+workerId NoWorker = panic "workerId: NoWorker"
wrapperArity :: WorkerInfo -> Arity
wrapperArity (HasWorker _ a) = a
+wrapperArity NoWorker = panic "wrapperArity: NoWorker"
\end{code}
| NoCafRefs -- A function or static constructor
-- that refers to no CAFs.
+vanillaCafInfo :: CafInfo
vanillaCafInfo = MayHaveCafRefs -- Definitely safe
+mayHaveCafRefs :: CafInfo -> Bool
mayHaveCafRefs MayHaveCafRefs = True
mayHaveCafRefs _ = False
+seqCaf :: CafInfo -> ()
seqCaf c = c `seq` ()
+ppCafInfo :: CafInfo -> SDoc
ppCafInfo NoCafRefs = ptext SLIT("NoCafRefs")
ppCafInfo MayHaveCafRefs = empty
\end{code}
data LBVarInfo = NoLBVarInfo
| IsOneShotLambda -- The lambda is applied at most once).
+seqLBVar :: LBVarInfo -> ()
seqLBVar l = l `seq` ()
\end{code}
\begin{code}
+hasNoLBVarInfo :: LBVarInfo -> Bool
hasNoLBVarInfo NoLBVarInfo = True
hasNoLBVarInfo IsOneShotLambda = False
+noLBVarInfo :: LBVarInfo
noLBVarInfo = NoLBVarInfo
+pprLBVarInfo :: LBVarInfo -> SDoc
pprLBVarInfo NoLBVarInfo = empty
pprLBVarInfo IsOneShotLambda = ptext SLIT("OneShot")