X-Git-Url: https://git.stderr.nl/gitweb?a=blobdiff_plain;f=CoreTools.hs;h=a9114565c9aca9c732bc1c73848637b53a787f79;hb=8ebcc3ed9b394000ccd07ffeb541f791444dfbc2;hp=52006fb8d624b14991d49526887a29ff84175ab6;hpb=da1ada4d31ea157f61c1c9e0cd3854387ac32218;p=matthijs%2Fmaster-project%2Fc%CE%BBash.git

diff --git a/CoreTools.hs b/CoreTools.hs
index 52006fb..a911456 100644
--- a/CoreTools.hs
+++ b/CoreTools.hs
@@ -42,7 +42,8 @@ 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
@@ -53,3 +54,18 @@ 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