55 lines
1.1 KiB
Ruby
55 lines
1.1 KiB
Ruby
module Virtual
|
|
|
|
class Constant < ::Virtual::Value
|
|
end
|
|
class TrueValue < Constant
|
|
end
|
|
class FalseValue < Constant
|
|
end
|
|
class NilValue < Constant
|
|
end
|
|
|
|
# another abstract "marker" class (so we can check for it)
|
|
# derived classes are Boot/Meta Class and StringConstant
|
|
class ObjectConstant < Constant
|
|
end
|
|
|
|
class IntegerConstant < Constant
|
|
def initialize int
|
|
@integer = int
|
|
end
|
|
attr_reader :integer
|
|
def attributes
|
|
[:integer]
|
|
end
|
|
def inspect
|
|
self.class.name + ".new(#{@integer})"
|
|
end
|
|
def type
|
|
Virtual::Integer
|
|
end
|
|
end
|
|
|
|
# The name really says it all.
|
|
# The only interesting thing is storage.
|
|
# Currently string are stored "inline" , ie in the code segment.
|
|
# Mainly because that works an i aint no elf expert.
|
|
|
|
class StringConstant < ObjectConstant
|
|
attr_reader :string
|
|
def attributes
|
|
[:string]
|
|
end
|
|
def initialize str
|
|
@string = str
|
|
end
|
|
|
|
def result= value
|
|
class_for(MoveInstruction).new(value , self , :opcode => :mov)
|
|
end
|
|
def inspect
|
|
self.class.name + ".new('#{@string}')"
|
|
end
|
|
end
|
|
|
|
end |