module TranslatorTypes where
import qualified Control.Monad.State as State
+import qualified Data.Map as Map
+
import qualified HscTypes
-import Flatten
-type FuncMap = [(HsFunction,
- (FlatFunction))]
+import qualified ForSyDe.Backend.VHDL.AST as AST
+
+import FlattenTypes
+import VHDLTypes
+import HsValueMap
+
+
+-- | A map from a HsFunction identifier to various stuff we collect about a
+-- function along the way.
+type FuncMap = Map.Map HsFunction FuncData
+
+-- | Some stuff we collect about a function along the way.
+data FuncData = FuncData {
+ flatFunc :: Maybe FlatFunction,
+ funcEntity :: Maybe Entity,
+ funcArch :: Maybe AST.ArchBody
+}
data VHDLSession = VHDLSession {
coreMod :: HscTypes.CoreModule, -- The current module
funcs :: FuncMap -- A map from HsFunction to FlatFunction, HWFunction, VHDL Entity and Architecture
}
--- Add the function to the session
-addFunc :: HsFunction -> FlatFunction -> VHDLState ()
-addFunc hsfunc flatfunc = do
+-- | Add the function to the session
+addFunc :: HsFunction -> VHDLState ()
+addFunc hsfunc =
+ modFuncMap (Map.insert hsfunc (FuncData Nothing Nothing Nothing))
+
+-- | 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 $ Map.lookup hsfunc fs
+
+-- | Gets all functions from the current session
+getFuncs :: VHDLState [(HsFunction, FuncData)]
+getFuncs = do
fs <- State.gets funcs -- Get the funcs element from the session
- State.modify (\x -> x {funcs = (hsfunc, flatfunc) : fs }) -- Prepend name and f
+ return $ Map.toList fs
+
+-- | Gets all the functions from the current session
+getHsFuncs :: VHDLState [HsFunction]
+getHsFuncs = do
+ fs <- State.gets funcs -- Get the funcs element from the session
+ return $ Map.keys fs
+
+-- | Sets the FlatFunction for the given HsFunction in the current session.
+setFlatFunc :: HsFunction -> FlatFunction -> VHDLState ()
+setFlatFunc hsfunc flatfunc =
+ modFunc (\d -> d { flatFunc = Just flatfunc }) hsfunc
+
+-- | Sets the Entity for the given HsFunction in the current session.
+setEntity :: HsFunction -> Entity -> VHDLState ()
+setEntity hsfunc entity =
+ modFunc (\d -> d { funcEntity = Just entity }) hsfunc
+
+-- | Sets the Entity for the given HsFunction in the current session.
+setArchitecture :: HsFunction -> AST.ArchBody -> VHDLState ()
+setArchitecture hsfunc arch =
+ modFunc (\d -> d { funcArch = Just arch }) hsfunc
+
+-- | Modify a function in the map using the given function
+modFunc :: (FuncData -> FuncData) -> HsFunction -> VHDLState ()
+modFunc f hsfunc =
+ modFuncMap (Map.adjust f hsfunc)
+
+-- | Modify the function map in the session using the given function
+modFuncMap :: (FuncMap -> FuncMap) -> VHDLState ()
+modFuncMap f = do
+ fs <- State.gets funcs -- Get the funcs element from the session
+ let fs' = f fs
+ State.modify (\x -> x {funcs = fs' })
+
+-- | Apply the given function to all functions in the map, and collect the
+-- results. The function is allowed to change the function map in the
+-- session, but any new functions added will not be mapped.
+modFuncs :: (HsFunction -> FuncData -> VHDLState ()) -> VHDLState ()
+modFuncs f = do
+ hsfuncs <- getHsFuncs
+ mapM doFunc hsfuncs
+ return ()
+ where
+ doFunc hsfunc = do
+ fdata_maybe <- getFunc hsfunc
+ case fdata_maybe of
+ Nothing -> do return ()
+ Just fdata -> f hsfunc fdata
getModule :: VHDLState HscTypes.CoreModule
getModule = State.gets coreMod -- Get the coreMod element from the session
State.modify (\s -> s {nameCount = count + 1})
return $ name ++ "_" ++ (show count)
+-- vim: set ts=8 sw=2 sts=2 expandtab: