add type of vardecl expr to gamma

[cc1516.git] / sem.dcl

diff --git a/sem.dcl b/sem.dcl
index 5c01ba0..b34bbc3 100644 (file)
--- a/sem.dcl
+++ b/sem.dcl
@@ -2,10 +2,12 @@ definition module sem
 
 from Data.Either import :: Either
 from AST import :: AST, :: Pos, :: Type
+from StdOverloaded import class toString
 
 :: SemError 
        = ParseError Pos String 
        | UnifyError Pos Type Type 
+       | UnifyErrorStub Type Type 
        | Error String
 :: SemOutput :== Either [SemError] AST