from Text import class Text(concat), instance Text String
from Data.Maybe import :: Maybe, maybe
+instance toString Pos where
+ toString {line,col} = concat [toString line, ":", toString col, " "]
+
instance toString AST where
toString (AST v f) = concat (
["\n":printersperse "\n" v] ++
indent :: Int [String] -> [String]
indent i rest = replicate i "\t" ++ rest
-instance print FunType where
- print (FunType at rt) = printersperse " " at ++
- [if (isEmpty at) "" "->":maybe ["Void"] print rt]
-
instance print VarDecl where
print (VarDecl _ t i e) = print t ++ [" ":i:"=":print e] ++ [";"]
+instance toString Type where
+ toString t = concat $ print t
+
instance print Type where
print (TupleType (t1, t2)) = ["(":print t1] ++ [",":print t2] ++ [")"]
print (ListType t) = ["[":print t] ++ ["]"]
print BoolType = print "Bool"
print CharType = print "Char"
print VarType = print "var"
+ print VoidType = print "Void"
+ print (t1 ->> t2) = print t1 ++ [" -> ":print t2]
instance print String where
print s = [s]
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:flatten $ map print fs]
print (VarExpr _ vd) = print vd
print (Op2Expr _ e1 o e2) = ["(":print e1] ++ [" ",case o of
BiPlus = "+"; BiMinus = "-"; BiTimes = "*"; BiDivide = "/"
- BiMod = "%"; BiEquals = "="; BiLesser = "<"; BiGreater = ">"
+ BiMod = "%"; BiEquals = "=="; BiLesser = "<"; BiGreater = ">"
BiLesserEq = "<="; BiGreaterEq = ">="; BiUnEqual = "!=";
BiAnd = "&&"; BiOr = "||"; BiCons = ":"
," ":print e2] ++ [")"]