import qualified Control.Monad.State as State
import qualified HscTypes
+import qualified Data.Map as Map
import Flatten
-- | A map from a HsFunction identifier to various stuff we collect about a
-- function along the way.
-type FuncMap = [(HsFunction, FuncData)]
+type FuncMap = Map.Map HsFunction FuncData
+
-- | Some stuff we collect about a function along the way.
-type FuncData = (FlatFunction)
+data FuncData = FuncData {
+ flatFunc :: Maybe FlatFunction
+}
data VHDLSession = VHDLSession {
coreMod :: HscTypes.CoreModule, -- The current module
}
-- | Add the function to the session
-addFunc :: HsFunction -> FlatFunction -> VHDLState ()
-addFunc hsfunc flatfunc = do
+addFunc :: HsFunction -> VHDLState ()
+addFunc hsfunc = do
fs <- State.gets funcs -- Get the funcs element from the session
- State.modify (\x -> x {funcs = (hsfunc, flatfunc) : fs }) -- Prepend name and f
+ let fs' = Map.insert hsfunc (FuncData Nothing) fs -- Insert function
+ State.modify (\x -> x {funcs = fs' })
-- | Find the given function in the current session
getFunc :: HsFunction -> VHDLState (Maybe FuncData)
getFunc hsfunc = do
fs <- State.gets funcs -- Get the funcs element from the session
- return $ lookup hsfunc fs
+ return $ Map.lookup hsfunc fs
+
+-- | Sets the FlatFunction for the given HsFunction in the given setting.
+setFlatFunc :: HsFunction -> FlatFunction -> VHDLState ()
+setFlatFunc hsfunc flatfunc = do
+ fs <- State.gets funcs -- Get the funcs element from the session
+ let fs'= Map.adjust (\d -> d { flatFunc = Just flatfunc }) hsfunc fs
+ State.modify (\x -> x {funcs = fs' })
getModule :: VHDLState HscTypes.CoreModule
getModule = State.gets coreMod -- Get the coreMod element from the session