Make the Alu example use 4-bit SizedWord as data.

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

diff --git a/CoreTools.hs b/CoreTools.hs
index 1e71eb14804ee16d6e1ed7b9cb1f8119d7e5cdaf..a9114565c9aca9c732bc1c73848637b53a787f79 100644 (file)
--- a/CoreTools.hs
+++ b/CoreTools.hs
@@ -5,17 +5,20 @@
 module CoreTools where
   
 -- GHC API
-import qualified DynFlags
+import qualified GHC
 import qualified Type
 import qualified HsExpr
 import qualified HsTypes
-import qualified RdrName
 import qualified HsBinds
+import qualified RdrName
 import qualified OccName
-import qualified HsBinds
+import qualified TysWiredIn
+import qualified Bag
+import qualified DynFlags
 import qualified SrcLoc
 
-import qualified HsTools
+import GhcTools
+import HsTools
 
 -- | Evaluate a core Type representing type level int from the tfp
 -- library to a real int.
@@ -39,5 +42,30 @@ eval_tfp_int ty =
           (HsBinds.HsValBinds $ (HsBinds.ValBindsIn binds) [])
           (SrcLoc.noLoc expr)
 
-    core <- toCore expr
+    let modules = map GHC.mkModuleName ["Types.Data.Num"]
+    core <- toCore modules expr
+    execCore core 
+
+-- | Get the length of a SizedWord type
+sized_word_len :: Type.Type -> Int
+sized_word_len ty =
+  eval_tfp_int len
+  where 
+    (tycon, args) = Type.splitTyConApp ty
+    [len] = args
+
+-- | Evaluate a core Type representing type level int from the TypeLevel
+-- library to a real int.
+eval_type_level_int :: Type.Type -> Int
+eval_type_level_int ty =
+  unsafeRunGhc $ do
+    -- Automatically import modules for any fully qualified identifiers
+    setDynFlag DynFlags.Opt_ImplicitImportQualified
+
+    let to_int_name = mkRdrName "Data.TypeLevel.Num.Sets" "toInt"
+    let to_int = SrcLoc.noLoc $ HsExpr.HsVar to_int_name
+    let undef = hsTypedUndef $ coreToHsType ty
+    let app = HsExpr.HsApp (to_int) (undef)
+
+    core <- toCore [] app
     execCore core