Allow a FlatFunction to be named as well as unnamed.

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

diff --git a/TranslatorTypes.hs b/TranslatorTypes.hs
index 60d12ebb0c53fd387dd1772861dea48567918cb2..cad096bff8c692ec03437ff4e6fe4e7b6818d1b0 100644 (file)
--- a/TranslatorTypes.hs
+++ b/TranslatorTypes.hs
@@ -7,14 +7,24 @@ module TranslatorTypes where
 import qualified Control.Monad.State as State
 import qualified HscTypes
 import qualified Data.Map as Map
-import Flatten
+import FlattenTypes
+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
+
+-- | A signal that has been assigned a (unique) name
+data NamedSignal = NamedSignal String
+
+-- | A function in which all signals have been assigned unique names
+type NamedFlatFunction = FlatFunction' NamedSignal
+
 -- | Some stuff we collect about a function along the way.
-type FuncData = (Maybe FlatFunction)
+data FuncData = FuncData {
+  flatFunc :: Maybe (Either FlatFunction NamedFlatFunction)
+}
 
 data VHDLSession = VHDLSession {
   coreMod   :: HscTypes.CoreModule, -- The current module
@@ -26,7 +36,7 @@ data VHDLSession = VHDLSession {
 addFunc :: HsFunction -> VHDLState ()
 addFunc hsfunc = do
   fs <- State.gets funcs -- Get the funcs element from the session
-  let fs' = Map.insert hsfunc (Nothing) fs -- Insert function
+  let fs' = Map.insert hsfunc (FuncData Nothing) fs -- Insert function
   State.modify (\x -> x {funcs = fs' })
 
 -- | Find the given function in the current session
@@ -35,6 +45,13 @@ 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 -> (Either FlatFunction NamedFlatFunction) -> 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