From: ddungum@...
Date: 2008-09-19T20:17:16+09:00
Subject: rb_include_module() doesn't call Module#included

I'm writing a c extension and I want to create a class called "World"
in C which includes a ruby module "Serializable".

	# autoexec.rb
	module Serializable
		def self.included( otherMod )
			puts "Serializable is included by #{otherMod.name}"
		end
	end

	// World.c
       ...
	rb_load( rb_str_new2("autoexec.rb"), 0 );
	VALUE klass = rb_define_class("World", rb_cObject);
	rb_include_module( klass, rb_eval_string("Serializable") );

	# in IRB
	>> require "World.so"
	=> true
	>> World.included_modules
	=> [Serializable, Kernel]

As you can see, class "World" includes module "Serializable", but
Serializable#included is not called.
I saw rb_mod_include (not rb_include_module) calls Module#included
explicitly in eval.c, but it's declared as a static function, so I
can't use it in my source code.

I think this problem is a bug, but how do you think ?

By the way, if I replace rb_include_module call with this,
Module#included is called fortunately.

	VALUE args [1] = { rb_str_new2("include Serializable") };
	rb_mod_module_eval( 1, args, klass );

But I don't want to use eval function because it's relatively slow.