1 files changed, 2 insertions, 0 deletions
diff --git a/ast.hs b/ast.hs
index b1b31b7..2f40b84 100644
--- a/ast.hs
+++ b/ast.hs
@@ -38,6 +38,7 @@ data Type = TypeInt Int
   deriving (Show, Eq)
 
 data Literal = LitInt Integer
+             | LitUInt Integer
              | LitFloat Double
              | LitString String
              | LitVar Name
@@ -128,6 +129,7 @@ instance PShow Type where
 
 instance PShow Literal where
     pshow (LitInt i) = pshow i
+    pshow (LitUInt i) = pshow i ++ "U"
     pshow (LitFloat x) = pshow x
     pshow (LitString s) = pshow s
     pshow (LitVar n) = n