Started adding builtin functions

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

diff --git a/CoreTools.hs b/CoreTools.hs
index 31af5f8914e9f0b2ce95eb104aa20cef0c997c37..5fbe8716e9f5ceb2321e6769eec65c585c28de0e 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.
@@ -39,10 +42,11 @@ 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
+-- | Get the width of a SizedWord type
 sized_word_len :: Type.Type -> Int
 sized_word_len ty =
   eval_tfp_int len
@@ -50,3 +54,26 @@ sized_word_len ty =
     (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 
+
+-- | Get the length of a FSVec type
+tfvec_len :: Type.Type -> Int
+tfvec_len ty =
+  eval_tfp_int len
+  where 
+    (tycon, args) = Type.splitTyConApp ty
+    [len, el_ty] = args