Derive Show for a bunch of types.

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

diff --git a/TranslatorTypes.hs b/TranslatorTypes.hs
index e16c12ea3a6fa1678f76c7521c3d684dd84d5775..d50881600a11b9ec83d8a6ec7b83baa609bc0139 100644 (file)
--- a/TranslatorTypes.hs
+++ b/TranslatorTypes.hs
@@ -5,11 +5,27 @@
 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
+} deriving (Show)
 
 data VHDLSession = VHDLSession {
   coreMod   :: HscTypes.CoreModule, -- The current module
@@ -17,11 +33,70 @@ 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 =
+  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
@@ -37,3 +112,4 @@ uniqueName name = do
   State.modify (\s -> s {nameCount = count + 1})
   return $ name ++ "_" ++ (show count)
 
+-- vim: set ts=8 sw=2 sts=2 expandtab: