module Vm module Tree class IntegerExpression < Expression include ValuePrinter attr_accessor :value def initialize(value) @value = value end end class FloatExpression < Expression include ValuePrinter attr_accessor :value def initialize(value) @value = value end end class TrueExpression < Expression def to_s "true" end end class FalseExpression < Expression def to_s "false" end end class NilExpression < Expression def to_s "nil" end end class StringExpression < Expression include ValuePrinter attr_accessor :value def initialize(value) @value = value end end class NameExpression < Expression include ValuePrinter attr_accessor :value alias :name :value def initialize(value) @value = value end end class ClassExpression < Expression include ValuePrinter attr_accessor :value def initialize(value) @value = value end end end end