X-Git-Url: https://git.martlubbers.net/?a=blobdiff_plain;f=sem.dcl;h=584deb567792c7e75b67360be3fab9646c8bd3a6;hb=ebcd007897feb48e987110c2ddbaea8ddcbef109;hp=03320763369c604838b8fe37164676eb298940ee;hpb=2473a12c050ab50a6fded6d4ea6df9b81ab8abf1;p=cc1516.git

diff --git a/sem.dcl b/sem.dcl
index 0332076..584deb5 100644
--- a/sem.dcl
+++ b/sem.dcl
@@ -2,13 +2,16 @@ definition module sem
 
 import qualified Data.Map as Map
 from Data.Either import :: Either
-from AST import :: AST, :: Pos, :: Type, :: FieldSelector
+from AST import :: AST, :: Pos, :: Type, :: FieldSelector, :: Op2
 from StdOverloaded import class toString
 
 :: SemError 
 	= ParseError Pos String 
 	| UnifyError Pos Type Type 
     | FieldSelectorError Pos Type FieldSelector 
+	| OperatorError Pos Op2 Type
+    | UndeclaredVariableError Pos String
+    | ArgumentMisMatchError Pos String
 	| Error String
 :: Gamma
 :: SemOutput :== Either [SemError] (AST, Gamma)