flattenFunction _ (Rec _) = error "Recursive binders not supported"
flattenFunction hsfunc bind@(NonRec var expr) =
- FlatFunction args res apps conds []
+ FlatFunction args res apps conds sigs
where
- init_state = ([], [], 0)
+ init_state = ([], [], [], 0)
(fres, end_state) = State.runState (flattenExpr [] expr) init_state
(args, res) = fres
- (apps, conds, _) = end_state
+ (apps, conds, sigs, _) = end_state
flattenExpr ::
BindMap
)]
-- | The state during the flattening of a single function
-type FlattenState = State.State ([FApp UnnamedSignal], [CondDef UnnamedSignal], UnnamedSignal)
+type FlattenState = State.State ([FApp UnnamedSignal], [CondDef UnnamedSignal], [Signal UnnamedSignal], UnnamedSignal)
-- | Add an application to the current FlattenState
addApp :: (FApp UnnamedSignal) -> FlattenState ()
addApp a = do
- (apps, conds, n) <- State.get
- State.put (a:apps, conds, n)
+ (apps, conds, sigs, n) <- State.get
+ State.put (a:apps, conds, sigs, n)
-- | Add a conditional definition to the current FlattenState
addCondDef :: (CondDef UnnamedSignal) -> FlattenState ()
addCondDef c = do
- (apps, conds, n) <- State.get
- State.put (apps, c:conds, n)
+ (apps, conds, sigs, n) <- State.get
+ State.put (apps, c:conds, sigs, n)
-- | Generates a new signal id, which is unique within the current flattening.
genSignalId :: FlattenState UnnamedSignal
genSignalId = do
- (apps, conds, n) <- State.get
- State.put (apps, conds, n+1)
+ (apps, conds, sigs, n) <- State.get
+ let s = Signal n
+ State.put (apps, conds, s:sigs, n+1)
return n
-