X-Git-Url: https://git.stderr.nl/gitweb?a=blobdiff_plain;f=CoreTools.hs;h=3d3828b45b8c150d4c552759e6202a590a21c7fa;hb=998e440a7fa765685e1ed500c871058a33129b1f;hp=1e65b0d6b0b95da582669c5774366e750bbc4c76;hpb=ed1bae43e489cc20a6be9dd5e007bb7d7b6a95dc;p=matthijs%2Fmaster-project%2Fc%CE%BBash.git

diff --git a/CoreTools.hs b/CoreTools.hs
index 1e65b0d..3d3828b 100644
--- a/CoreTools.hs
+++ b/CoreTools.hs
@@ -46,7 +46,7 @@ eval_tfp_int ty =
     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
@@ -54,3 +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
+fsvec_len :: Type.Type -> Int
+fsvec_len ty =
+  eval_type_level_int len
+  where 
+    (tycon, args) = Type.splitTyConApp ty
+    [len, el_ty] = args