You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: platform.rb
    path of file: ./repos/facets/lib/standard/facets
    
    the code of the file until where you have to start completion: require 'facets/rbconfig'

unless defined?(RUBY_ENGINE)
  RUBY_ENGINE = 'ruby'
end

# Platform class
#
# Original version from RubyGems, Copyright (c) 2007 Eric Hodel
class Platform

  # A pure-ruby gem that may use Gem::Specification#extensions to build
  # binary files.
  RUBY = 'ruby'

  # A platform-specific gem that is built for the packaging ruby's platform.
  # This will be replaced with Gem::Platform::local.
  CURRENT = 'current'

  @local      = nil
  @supported  = nil

  #
  attr_accessor :cpu

  #
  attr_accessor :os

  #
  attr_accessor :version

  ##RbConfig = Config unless defined? ::R
    
  def =~(other)
    case other
    when Platform then # nop
    when String then
      # This data is from http://gems.rubyforge.org/gems/yaml on 19 Aug 2007
      other = case other
        when /^i686-darwin(\d)/ then     ['x86',       'darwin',  $1]
        when /^i\d86-linux/ then         ['x86',       'linux',   nil]
        when 'java', 'jruby' then        [nil,         'java',    nil]
        when /mswin32(\_(\d+))?/ then    ['x86',       'mswin32', $2]
        when 'powerpc-darwin' then       ['powerpc',   'darwin',  nil]
        when /powerpc-darwin(\d)/ then   ['powerpc',   'darwin',  $1]
        when /sparc-solaris2.8/ then     ['sparc',     'solaris', '2.8']
        when /universal-darwin(\d)/ then ['universal', 'darwin',  $1]
        else                             other
      end