X-Git-Url: https://git.martlubbers.net/?a=blobdiff_plain;f=AST.dcl;h=4f65b0eed3f0868fe52326df8ad8ee2c23b594d8;hb=1f01e39fb2383aa2c63234d0750c0459fe3de752;hp=340aec64dae6a127bf4510f0982a303f5cff6e3f;hpb=fe40818bbc1d327f0adfbbbfe7ecfbe15d4eb053;p=cc1516.git

diff --git a/AST.dcl b/AST.dcl
index 340aec6..4f65b0e 100644
--- a/AST.dcl
+++ b/AST.dcl
@@ -1,43 +1,51 @@
 definition module AST
 
 from Data.Maybe import :: Maybe
-from StdOverloaded import class toString
+from StdOverloaded import class toString, class ==, class zero, class <
 
 :: Pos = {line :: Int, col :: Int}
-
-:: AST = AST [VarDecl] [FunDecl]
-:: VarDecl = VarDecl Type String Expr
+:: 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
-	| VarType
+    | VoidType
+    | (->>) infixl 7 Type Type
 :: Expr 
-	= VarExpr VarDef
-	| Op2Expr Expr Op2 Expr
-	| Op1Expr Op1 Expr
-	| IntExpr Int
-	| CharExpr Char
-	| BoolExpr Bool
-	| FunExpr FunCall
-	| EmptyListExpr
-	| TupleExpr (Expr, Expr)
+	= VarExpr Pos VarDef
+	| Op2Expr Pos Expr Op2 Expr
+	| Op1Expr Pos Op1 Expr
+	| IntExpr Pos Int
+	| CharExpr Pos Char
+	| BoolExpr Pos Bool
+	| FunExpr Pos String [Expr] [FieldSelector]
+	| EmptyListExpr Pos 
+	| TupleExpr Pos (Expr, Expr)
 :: VarDef = VarDef String [FieldSelector]
 :: FieldSelector = FieldHd | FieldTl | FieldFst | FieldSnd
 :: Op1 = UnNegation | UnMinus
 :: Op2 = BiPlus | BiMinus | BiTimes | BiDivide | BiMod | BiEquals | BiLesser |
 	BiGreater | BiLesserEq | BiGreaterEq | BiUnEqual | BiAnd | BiOr | BiCons
-:: FunDecl = FunDecl String [String] (Maybe FunType) [VarDecl] [Stmt]
-:: FunType = FunType [Type] (Maybe Type)
-:: FunCall = FunCall String [Expr]
+:: FunDecl = FunDecl Pos String [String] (Maybe Type) [VarDecl] [Stmt]
 :: Stmt 
 	= IfStmt Expr [Stmt] [Stmt]
 	| WhileStmt Expr [Stmt]
 	| AssStmt VarDef Expr
-	| FunStmt FunCall
+	| FunStmt String [Expr]
 	| ReturnStmt (Maybe Expr)
 
+instance toString Pos
+instance toString Type
 instance toString AST
+
+instance zero Pos
+instance == Op1
+instance == Op2
+instance < Op1
+instance < Op2
+instance == Type