Extended maintenance of Ruby 1.9.3 ended on February 23, 2015. Read more
# File dl/lib/dl/struct.rb, line 18 def create(klass, types, members) new_class = Class.new(klass){ define_method(:initialize){|addr| @entity = klass.entity_class.new(addr, types) @entity.assign_names(members) } define_method(:to_ptr){ @entity } define_method(:to_i){ @entity.to_i } members.each{|name| define_method(name){ @entity[name] } define_method(name + "="){|val| @entity[name] = val } } } size = klass.entity_class.size(types) new_class.module_eval(<<-EOS, __FILE__, __LINE__+1) def new_class.size() #{size} end def new_class.malloc() addr = DL.malloc(#{size}) new(addr) end EOS return new_class end