X-Git-Url: https://git.stderr.nl/gitweb?a=blobdiff_plain;f=c%CE%BBash%2FCLasH%2FNormalize%2FNormalizeTypes.hs;h=80d39ac19ce10dbfccb75af33057a49e24f0c9a1;hb=bcaa7ec85a9025a95c431f550bb5ea0cf5af5375;hp=2383cdf7086c8abc8a7d6c9653134ae8625e3552;hpb=fcadaad2e47e5f6cba4b9f7d4341477b8fe74158;p=matthijs%2Fmaster-project%2Fc%CE%BBash.git

diff --git "a/c\316\273ash/CLasH/Normalize/NormalizeTypes.hs" "b/c\316\273ash/CLasH/Normalize/NormalizeTypes.hs"
index 2383cdf..80d39ac 100644
--- "a/c\316\273ash/CLasH/Normalize/NormalizeTypes.hs"
+++ "b/c\316\273ash/CLasH/Normalize/NormalizeTypes.hs"
@@ -1,45 +1,33 @@
-{-# LANGUAGE TemplateHaskell #-}
 module CLasH.Normalize.NormalizeTypes where
 
-
 -- Standard modules
 import qualified Control.Monad.Trans.Writer as Writer
-import qualified Control.Monad.Trans.State as State
 import qualified Data.Monoid as Monoid
-import qualified Data.Accessor.Template
-import Data.Accessor
-import qualified Data.Map as Map
-import Debug.Trace
 
 -- GHC API
-import CoreSyn
-import qualified VarSet
-import Outputable ( Outputable, showSDoc, ppr )
+import qualified CoreSyn
 
 -- Local imports
-import CLasH.Utils.Core.CoreShow
-import CLasH.Utils.Pretty
 import CLasH.Translator.TranslatorTypes
 
--- Wrap a writer around a TransformSession, to run a single transformation
+-- Wrap a writer around a TranslatorSession, to run a single transformation
 -- over a single expression and track if the expression was changed.
-type TransformMonad = Writer.WriterT Monoid.Any TransformSession
-
+type TransformMonad = Writer.WriterT Monoid.Any TranslatorSession
+
+-- | In what context does a core expression occur?
+data CoreContext = AppFirst        -- ^ The expression is the first
+                                   -- argument of an application (i.e.,
+                                   -- it is applied)
+                 | AppSecond       -- ^ The expression is the second
+                                   --   argument of an application
+                                   --   (i.e., something is applied to it)
+                 | LetBinding      -- ^ The expression is bound in a
+                                   --   (recursive or non-recursive) let
+                                   --   expression.
+                 | LetBody         -- ^ The expression is the body of a
+                                   --   let expression
+                 | LambdaBody      -- ^ The expression is the body of a
+                                   --   lambda abstraction
+                 | Other           -- ^ Another context
 -- | Transforms a CoreExpr and keeps track if it has changed.
-type Transform = CoreExpr -> TransformMonad CoreExpr
-
--- Finds the value of a global binding, if available
-getGlobalBind :: CoreBndr -> TransformSession (Maybe CoreExpr)
-getGlobalBind bndr = do
-  bindings <- getA tsBindings
-  return $ Map.lookup bndr bindings 
-
--- Adds a new global binding with the given value
-addGlobalBind :: CoreBndr -> CoreExpr -> TransformSession ()
-addGlobalBind bndr expr = modA tsBindings (Map.insert bndr expr)
-
--- Returns a list of all global binders
-getGlobalBinders :: TransformSession [CoreBndr]
-getGlobalBinders = do
-  bindings <- getA tsBindings
-  return $ Map.keys bindings
+type Transform = [CoreContext] -> CoreSyn.CoreExpr -> TransformMonad CoreSyn.CoreExpr