X-Git-Url: https://git.martlubbers.net/?a=blobdiff_plain;f=AST.dcl;h=cb2e5b790e5efbbde642495ce13800db8203cf56;hb=e641250705517611f422540d8ba3fe021e6068b3;hp=97741e54d47e3e67b925909ff78e0b2621d27ec0;hpb=2473a12c050ab50a6fded6d4ea6df9b81ab8abf1;p=cc1516.git

diff --git a/AST.dcl b/AST.dcl
index 97741e5..cb2e5b7 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 +43,7 @@ from StdOverloaded import class toString
 instance toString AST
 instance toString Type
 instance toString Pos
+instance toString Op2
+instance == Op2
+instance == Type
 instance toString FieldSelector