From: "Iñaki Baz Castillo" <ibc@...>
Date: 2012-04-19T01:34:12+09:00
Subject: C extension: How to get a block passed to a method?

Hi, let's imagine the following Ruby code:


   my_method("hello") {
     puts "bye"
   }


In pure Ruby the method definition would be:

    def my_method string, &block
      puts string
      block.call
    end


Now the question is: how to do the same at Ruby C level? I assume the
following will not work:

  rb_define_module_function(mModule, "my_method", my_method, 2);

since:

  method(:my_method).arity
  => 1


So how can I get the block given to a method in C code?

Thanks a lot.



-- 
Iñaki Baz Castillo
<ibc@aliax.net>