# File lib/active_record/persistence.rb, line 158 def becomes(klass) became = klass.new became.instance_variable_set("@attributes", @attributes) became.instance_variable_set("@attributes_cache", @attributes_cache) became.instance_variable_set("@new_record", new_record?) became.instance_variable_set("@destroyed", destroyed?) became.instance_variable_set("@errors", errors) became.send("#{klass.inheritance_column}=", klass.name) unless self.class.descends_from_active_record? became end