37 lines
660 B
Ruby
37 lines
660 B
Ruby
module Register
|
|
|
|
class Constant < ::Register::Object
|
|
end
|
|
class TrueConstant < Constant
|
|
end
|
|
class FalseConstant < Constant
|
|
end
|
|
class NilConstant < Constant
|
|
end
|
|
|
|
# another abstract "marker" class (so we can check for it)
|
|
# derived classes are Boot/Meta Class and StringConstant
|
|
class ObjectConstant < Constant
|
|
# def type
|
|
# Phisol::Reference
|
|
# end
|
|
def clazz
|
|
raise "abstract #{self}"
|
|
end
|
|
end
|
|
|
|
class IntegerConstant < Constant
|
|
def initialize int
|
|
@integer = int
|
|
end
|
|
attr_reader :integer
|
|
def type
|
|
:Integer
|
|
end
|
|
def fits_u8?
|
|
integer >= 0 and integer <= 255
|
|
end
|
|
end
|
|
|
|
end
|