# File lib/rake.rb, line 341
341:     def initialize(names, values, parent=nil)
342:       @names = names
343:       @parent = parent
344:       @hash = {}
345:       names.each_with_index { |name, i|
346:         @hash[name.to_sym] = values[i] unless values[i].nil?
347:       }
348:     end