X-Git-Url: https://git.martlubbers.net/?a=blobdiff_plain;f=AST.dcl;h=e9afa4fb042a94cfccb4cc40d172b4d807eb6bd0;hb=74b900cf6db033a51e177f7f85d835dae44217e5;hp=45eab9e8cb8b3a74cf1934da6801c2f2bc5c94e0;hpb=817af8de40d49db39dcf02ee5fe346f0d7b73118;p=cc1516.git

diff --git a/AST.dcl b/AST.dcl
index 45eab9e..e9afa4f 100644
--- a/AST.dcl
+++ b/AST.dcl
@@ -1,19 +1,21 @@
 definition module AST
 
 from Data.Maybe import :: Maybe
-from StdOverloaded import class toString, class ==
+from StdOverloaded import class toString, class ==, class zero, class <
 
 :: Pos = {line :: Int, col :: Int}
 :: AST = AST [FunDecl]
 :: VarDecl = VarDecl Pos (Maybe Type) String Expr
+:: TVar :== String
 :: Type 
 	= TupleType (Type, Type)
 	| ListType Type
-	| IdType String 
+	| IdType TVar 
 	| IntType 
 	| BoolType
 	| CharType
     | VoidType
+	| FuncType Type
     | (->>) infixl 7 Type Type
 :: Expr 
 	= VarExpr Pos VarDef
@@ -25,6 +27,7 @@ from StdOverloaded import class toString, class ==
 	| FunExpr Pos String [Expr] [FieldSelector]
 	| EmptyListExpr Pos 
 	| TupleExpr Pos (Expr, Expr)
+    | LambdaExpr Pos [String] Expr
 :: VarDef = VarDef String [FieldSelector]
 :: FieldSelector = FieldHd | FieldTl | FieldFst | FieldSnd
 :: Op1 = UnNegation | UnMinus
@@ -35,9 +38,20 @@ from StdOverloaded import class toString, class ==
 	= IfStmt Expr [Stmt] [Stmt]
 	| WhileStmt Expr [Stmt]
 	| AssStmt VarDef Expr
-	| FunStmt String [Expr]
+	| FunStmt String [Expr] [FieldSelector]
 	| ReturnStmt (Maybe Expr)
 
 instance toString Pos
 instance toString Type
 instance toString AST
+instance toString FieldSelector
+instance toString Op2
+instance toString Expr
+instance toString VarDecl
+
+instance zero Pos
+instance == Op1
+instance == Op2
+instance < Op1
+instance < Op2
+instance == Type