genSignals ::
Type.Type
- -> FlattenState (SignalMap UnnamedSignal)
+ -> FlattenState SignalMap
genSignals ty =
-- First generate a map with the right structure containing the types, and
-- | Marks a signal as the given SigUse, if its id is in the list of id's
-- given.
-markSignals :: SigUse -> [UnnamedSignal] -> (UnnamedSignal, SignalInfo) -> (UnnamedSignal, SignalInfo)
+markSignals :: SigUse -> [SignalId] -> (SignalId, SignalInfo) -> (SignalId, SignalInfo)
markSignals use ids (id, info) =
(id, info')
where
info' = if id `elem` ids then info { sigUse = use} else info
-markSignal :: SigUse -> UnnamedSignal -> (UnnamedSignal, SignalInfo) -> (UnnamedSignal, SignalInfo)
+markSignal :: SigUse -> SignalId -> (SignalId, SignalInfo) -> (SignalId, SignalInfo)
markSignal use id = markSignals use [id]
-- | Flatten a haskell function
flattenFunction _ (Rec _) = error "Recursive binders not supported"
flattenFunction hsfunc bind@(NonRec var expr) =
- FlatFunction args res apps conds sigs''''
+ FlatFunction args res defs sigs''''
where
- init_state = ([], [], [], 0)
+ init_state = ([], [], 0)
(fres, end_state) = State.runState (flattenExpr [] expr) init_state
- (apps, conds, sigs, _) = end_state
+ (defs, sigs, _) = end_state
(args, res) = fres
arg_ports = concat (map Foldable.toList args)
res_ports = Foldable.toList res
flattenExpr ::
BindMap
-> CoreExpr
- -> FlattenState ([SignalMap UnnamedSignal], (SignalMap UnnamedSignal))
+ -> FlattenState ([SignalMap], SignalMap)
flattenExpr binds lam@(Lam b expr) = do
-- Find the type of the binder
appArgs = arg_ress,
appRes = res
}
- addApp app
+ addDef app
return ([], res)
-- | Check a flattened expression to see if it is valid to use as a
-- function argument. The first argument is the original expression for
-> Var.Var -- The scrutinee
-> CoreBndr -- The binder to bind the scrutinee to
-> CoreAlt -- The single alternative
- -> FlattenState ( [SignalMap UnnamedSignal], SignalMap UnnamedSignal)
+ -> FlattenState ( [SignalMap], SignalMap)
-- See expandExpr
flattenSingleAltCaseExpr binds v b alt@(DataAlt datacon, bind_vars, expr) =
if not (DataCon.isTupleCon datacon)
-- | Filters non-state signals and returns the state number and signal id for
-- state values.
filterState ::
- UnnamedSignal -- | The signal id to look at
+ SignalId -- | The signal id to look at
-> HsValueUse -- | How is this signal used?
- -> Maybe (Int, UnnamedSignal ) -- | The state num and signal id, if this
+ -> Maybe (StateId, SignalId ) -- | The state num and signal id, if this
-- signal was used as state
filterState id (State num) =
-- signals in the given maps.
stateList ::
HsUseMap
- -> (SignalMap UnnamedSignal)
- -> [(Int, UnnamedSignal)]
+ -> (SignalMap)
+ -> [(StateId, SignalId)]
stateList uses signals =
Maybe.catMaybes $ Foldable.toList $ zipValueMapsWith filterState signals uses
getOwnStates ::
HsFunction -- | The function to look at
-> FlatFunction -- | The function to look at
- -> [(Int, SignalInfo, SignalInfo)]
+ -> [(StateId, SignalInfo, SignalInfo)]
-- | The state signals. The first is the state number, the second the
-- signal to assign the current state to, the last is the signal
-- that holds the new state.