X-Git-Url: https://git.martlubbers.net/?a=blobdiff_plain;f=AST.dcl;h=3a61b546b744a0f093eecfc903627ae7d91249f3;hb=6d70a636ed3b4573c4c81ba068ae2b46523c9465;hp=97741e54d47e3e67b925909ff78e0b2621d27ec0;hpb=2473a12c050ab50a6fded6d4ea6df9b81ab8abf1;p=cc1516.git

diff --git a/AST.dcl b/AST.dcl
index 97741e5..3a61b54 100644
--- a/AST.dcl
+++ b/AST.dcl
@@ -1,7 +1,7 @@
 definition module AST
 
 from Data.Maybe import :: Maybe
-from StdOverloaded import class toString
+from StdOverloaded import class toString, class ==
 
 :: Pos = {line :: Int, col :: Int}
 :: AST = AST [VarDecl] [FunDecl]
@@ -43,4 +43,6 @@ from StdOverloaded import class toString
 instance toString AST
 instance toString Type
 instance toString Pos
+instance toString Op2
+instance == Op2
 instance toString FieldSelector