X-Git-Url: https://git.stderr.nl/gitweb?a=blobdiff_plain;f=CoreTools.hs;h=3c26793c8c804ce7f9dd7262851565398638195d;hb=d21c34b00b9041a146da89324e9dda6b22271b47;hp=444a4ba6c2ab7e469e164b030f77b5067c905459;hpb=e22ea2b99253fddd3846b2b219ca7a896a63d465;p=matthijs%2Fmaster-project%2Fc%CE%BBash.git

diff --git a/CoreTools.hs b/CoreTools.hs
index 444a4ba..3c26793 100644
--- a/CoreTools.hs
+++ b/CoreTools.hs
@@ -22,8 +22,10 @@ import qualified DynFlags
 import qualified SrcLoc
 import qualified CoreSyn
 import qualified Var
+import qualified VarSet
 import qualified Unique
 import qualified CoreUtils
+import qualified CoreFVs
 
 import GhcTools
 import HsTools
@@ -61,6 +63,14 @@ sized_word_len ty =
   where 
     (tycon, args) = Type.splitTyConApp ty
     [len] = args
+    
+-- | Get the upperbound of a RangedWord type
+ranged_word_bound :: Type.Type -> Int
+ranged_word_bound 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.
@@ -85,6 +95,13 @@ tfvec_len ty =
   where 
     (tycon, args) = Type.splitTyConApp ty
     [len, el_ty] = args
+    
+-- | Get the element type of a TFVec type
+tfvec_elem :: Type.Type -> Type.Type
+tfvec_elem ty = el_ty
+  where
+    (tycon, args) = Type.splitTyConApp ty
+    [len, el_ty] = args
 
 -- Is this a wild binder?
 is_wild :: CoreSyn.CoreBndr -> Bool
@@ -117,3 +134,11 @@ is_var :: CoreSyn.CoreExpr -> Bool
 is_var (CoreSyn.Var _) = True
 is_var _ = False
 
+-- Can the given core expression be applied to something? This is true for
+-- applying to a value as well as a type.
+is_applicable :: CoreSyn.CoreExpr -> Bool
+is_applicable expr = is_fun expr || is_poly expr
+
+-- Does the given CoreExpr have any free type vars?
+has_free_tyvars :: CoreSyn.CoreExpr -> Bool
+has_free_tyvars = not . VarSet.isEmptyVarSet . (CoreFVs.exprSomeFreeVars Var.isTyVar)