ConstVal
Any Constant Variable
class Expr
trait HasStaticTypeSafety
trait HasPromoteToType
trait HasEvalType
class Stat
class AST
class Object
trait Matchable
class Any
class BoolVal
class DateTimeVal
class DateVal
class DecimalVal
class DoubleVal
class FloatVal
class IntVal
class LongVal
class NothingVal
class StrVal
class StructVal
class VoidVal