Name signals in a function after flattening it.

[matthijs/master-project/cλash.git] / TranslatorTypes.hs

diff --git a/TranslatorTypes.hs b/TranslatorTypes.hs
index e16c12ea3a6fa1678f76c7521c3d684dd84d5775..271a5d39c019b56faab9e2112c6cedcdf13e9e94 100644 (file)
--- a/TranslatorTypes.hs
+++ b/TranslatorTypes.hs
@@ -6,10 +6,19 @@ module TranslatorTypes where
 
 import qualified Control.Monad.State as State
 import qualified HscTypes
-import Flatten
+import qualified Data.Map as Map
+import FlattenTypes
+import HsValueMap
 
-type FuncMap = [(HsFunction, 
-    (FlatFunction))]
+
+-- | 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
+}
 
 data VHDLSession = VHDLSession {
   coreMod   :: HscTypes.CoreModule, -- The current module
@@ -17,11 +26,32 @@ data VHDLSession = VHDLSession {
   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 = do
+  fs <- State.gets funcs -- Get the funcs element from the session
+  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 $ 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' })
+
+-- | Modify all functions in the map using the given function
+modFuncs :: (HsFunction -> FuncData -> FuncData) -> VHDLState ()
+modFuncs f = 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.mapWithKey f fs
+  State.modify (\x -> x {funcs = fs' })
 
 getModule :: VHDLState HscTypes.CoreModule
 getModule = State.gets coreMod -- Get the coreMod element from the session
@@ -37,3 +67,4 @@ uniqueName name = do
   State.modify (\s -> s {nameCount = count + 1})
   return $ name ++ "_" ++ (show count)
 
+-- vim: set ts=8 sw=2 sts=2 expandtab: