[")":printCodeBlock dos i]
(AssStmt vardef val) =
indent i $ print vardef ++ ["=":print val] ++ [";\n"]
- (FunStmt ident args) = indent i $ printFunCall ident args
+ (FunStmt ident args fs) = indent i $ printFunCall ident args fs ++ [";\n"]
(ReturnStmt me) = indent i ["return ":maybe [""] print me] ++ [";\n"]
) ++ printStatements ss i
where
instance print VarDecl where
print (VarDecl _ t i e) = maybe ["var"] print t ++ [" ":i:"=":print e] ++ [";"]
+instance toString VarDecl where
+ toString v = concat (print v)
instance toString Type where
toString t = concat $ print t
print BoolType = print "Bool"
print CharType = print "Char"
print VoidType = print "Void"
+ print (FuncType t) = ["(-> ":print t] ++ [")"]
print (t1 ->> t2) = ["(":print t1 ++ [" -> ":print t2]] ++ [")"]
instance print String where
print FieldTl = print "tl"
print FieldSnd = print "snd"
print FieldFst = print "fst"
+instance toString FieldSelector where
+ toString fs = concat $ print fs
instance print VarDef where
print (VarDef i fs) = printersperse "." [i:printersperse "" fs]
c = if (c == toChar 7) "\\a" (toString c)
,"\'"]
print (BoolExpr _ b) = [toString b]
- print (FunExpr _ id as fs) = printFunCall id as ++ printSelectors fs
+ print (FunExpr _ id as fs) = printFunCall id as fs
print (EmptyListExpr _) = ["[]"]
print (TupleExpr _ (e1, e2)) = ["(":print e1] ++ [",":print e2] ++ [")"]
+instance toString Expr where
+ toString e = concat $ print e
printSelectors :: [FieldSelector] -> [String]
-printSelectors x = case x of [] = [""]; _ = [".":printersperse "." x]
+printSelectors fs = printersperse "." fs
-printFunCall :: String [Expr] -> [String]
-printFunCall s args = [s, "(":printersperse "," args] ++ [")"]
+printFunCall :: String [Expr] [FieldSelector] -> [String]
+printFunCall s args fs = [s, "(":printersperse "," args] ++ [")"] ++
+ printSelectors fs
derive gEq Op2
instance == Op2 where (==) o1 o2 = gEq{|*|} o1 o2
instance == Op1 where (==) o1 o2 = gEq{|*|} o1 o2
instance < Op2 where (<) o1 o2 = toString o1 < toString o2
instance < Op1 where (<) o1 o2 = toString o1 < toString o2
+
+derive gEq Type
+instance == Type where (==) t1 t2 = gEq{|*|} t1 t2