-{-# LANGUAGE PatternGuards #-}
+{-# LANGUAGE PatternGuards, TypeSynonymInstances #-}
-- | This module provides a number of functions to find out things about Core
-- programs. This module does not provide the actual plumbing to work with
-- Core and Haskell (it uses HsTools for this), but only the functions that
import qualified Name
import qualified OccName
import qualified Type
+import qualified Id
import qualified TyCon
import qualified TysWiredIn
import qualified Bag
import qualified Literal
-- Local imports
+import CLasH.Translator.TranslatorTypes
import CLasH.Utils.GhcTools
import CLasH.Utils.HsTools
import CLasH.Utils.Pretty
(CoreSyn.Var f, args) = CoreSyn.collectArgs app
literals = filter (is_lit) args
-reduceCoreListToHsList :: CoreSyn.CoreExpr -> [CoreSyn.CoreExpr]
-reduceCoreListToHsList app@(CoreSyn.App _ _) = out
+getLiterals lit@(CoreSyn.Lit _) = [lit]
+
+reduceCoreListToHsList ::
+ [HscTypes.CoreModule] -- ^ The modules where parts of the list are hidden
+ -> CoreSyn.CoreExpr -- ^ The refence to atleast one of the nodes
+ -> TranslatorSession [CoreSyn.CoreExpr]
+reduceCoreListToHsList cores app@(CoreSyn.App _ _) = do {
+ ; let { (fun, args) = CoreSyn.collectArgs app
+ ; len = length args
+ } ;
+ ; case len of
+ 3 -> do {
+ ; let topelem = args!!1
+ ; case (args!!2) of
+ (varz@(CoreSyn.Var id)) -> do {
+ ; binds <- mapM (findExpr (isVarName id)) cores
+ ; otherelems <- reduceCoreListToHsList cores (head (Maybe.catMaybes binds))
+ ; return (topelem:otherelems)
+ }
+ (appz@(CoreSyn.App _ _)) -> do {
+ ; otherelems <- reduceCoreListToHsList cores appz
+ ; return (topelem:otherelems)
+ }
+ otherwise -> return [topelem]
+ }
+ otherwise -> return []
+ }
where
- (fun, args) = CoreSyn.collectArgs app
- len = length args
- out = case len of
- 3 -> ((args!!1) : (reduceCoreListToHsList (args!!2)))
- otherwise -> []
+ isVarName :: Monad m => Var.Var -> Var.Var -> m Bool
+ isVarName lookfor bind = return $ (Var.varName lookfor) == (Var.varName bind)
-reduceCoreListToHsList _ = []
+reduceCoreListToHsList _ _ = return []
-- | Is the given type a State type?
isStateType :: Type.Type -> Bool
else
Nothing
--- | Does the given expression have a State type?
-hasStateType :: CoreSyn.CoreExpr -> Bool
-hasStateType (CoreSyn.Type _) = False
-hasStateType expr = (isStateType . CoreUtils.exprType) expr
+-- | Does the given TypedThing have a State type?
+hasStateType :: (TypedThing t) => t -> Bool
+hasStateType expr = case getType expr of
+ Nothing -> False
+ Just ty -> isStateType ty
+
+
+-- | A class of things that (optionally) have a core Type. The type is
+-- optional, since Type expressions don't have a type themselves.
+class TypedThing t where
+ getType :: t -> Maybe Type.Type
+
+instance TypedThing CoreSyn.CoreExpr where
+ getType (CoreSyn.Type _) = Nothing
+ getType expr = Just $ CoreUtils.exprType expr
+
+instance TypedThing CoreSyn.CoreBndr where
+ getType = return . Id.idType
+
+instance TypedThing Type.Type where
+ getType = return . id