either binds ftw

[cc1516.git] / sem.dcl

diff --git a/sem.dcl b/sem.dcl
index 5c01ba0..6351c04 100644 (file)
--- a/sem.dcl
+++ b/sem.dcl
@@ -2,6 +2,7 @@ definition module sem
 
 from Data.Either import :: Either
 from AST import :: AST, :: Pos, :: Type
+from StdOverloaded import class toString
 
 :: SemError 
        = ParseError Pos String