rubyx/lib/register/instructions/load_constant.rb
2016-12-28 18:31:29 +02:00

37 lines
928 B
Ruby

module Register
# load a constant into a register
#
# first is the actual constant, either immediate register or object reference (from the space)
# second argument is the register the constant is loaded into
class LoadConstant < Instruction
def initialize source , constant , register
super(source)
@register = register
@constant = constant
end
attr_accessor :register , :constant
def to_s
"LoadConstant: #{register} <- #{constant_str}"
end
private
def constant_str
case @constant
when String , Symbol , Fixnum , Integer
@constant.to_s
else
if( @constant.respond_to? :sof_reference_name )
constant.sof_reference_name
else
constant.class.name.to_s
end
end
end
end
def self.load_constant( source , constant , register )
LoadConstant.new source , constant , register
end
end