# File lib/tour/facets/module/cattr.rb, line 189 def mattr_writer(*syms) syms.flatten.each do |sym| module_eval("unless defined? @@\#{sym}\n@@\#{sym} = nil\nend\n\ndef self.\#{sym}=(obj)\n@@\#{sym} = obj\nend\n\ndef \#{sym}=(obj)\n@@\#{sym}=(obj)\nend\n", __FILE__, __LINE__) end return syms end