1 files changed, 6 insertions, 2 deletions
diff --git a/app/IR.hs b/app/IR.hs
index cfb0b9a..fef193b 100644
--- a/app/IR.hs
+++ b/app/IR.hs
@@ -1,5 +1,6 @@
 module IR where
 
+import Data.Char (isNumber)
 import Data.List (mapAccumL)
 import qualified Data.Map as M
 
@@ -18,7 +19,8 @@ data Id =
 
 data PrlgInt
   = CallI Int [PrlgInt]
-  | LiteralI Int
+  | AtomI Int
+  | NumI Int
   | ListI [PrlgInt] (Maybe PrlgInt) -- only exists before desugaring
   | VarI Int Int -- VarI localIndex strTableString
   | VoidI
@@ -38,7 +40,9 @@ strtablize t@(StrTable nxt fwd rev) str =
 internPrlg :: StrTable -> PrlgStr -> (StrTable, PrlgInt)
 internPrlg = go
   where
-    go t (LiteralS str) = LiteralI <$> strtablize t str
+    go t (LiteralS str)
+      | all isNumber str = (t, NumI $ read str)
+      | otherwise = AtomI <$> strtablize t str
     go t (CallS str ps) =
       let (t', i) = strtablize t str
        in CallI i <$> mapAccumL go t' ps