From: Joel VanderWerf <vjoel@...>
Date: 2005-02-21T05:36:08+09:00
Subject: Re: Why don't I see these module constants?

Lloyd Zusman wrote:
> I think that it would be nice if in a future ruby release, the
> two-argument form of load() would return the anonymous module.  Then,

Ruby being ruby, it's easy enough to add a feature like this.

---------
class Module
   def load_in_module(file)
     module_eval(IO.read(file), File.expand_path(file))
   end
end

m = Module.new
m.load_in_module("some-file.rb")
p m::X
---------

where some-file.rb is:
---------
X = 1
---------

I wrapped this up in a little library called "script" (a little small 
for RAA, but it's there), which adds a few other niceties:

* instantiates the module and loads the file in one method call (whoopdeedo)
* defines #require so that the loaded file can require files relative to 
its own directory
* makes all methods defined in the file "module_functions" so that they 
are available in the form M.foo
* autoload equivalent
* can pass input to loaded files:
   script = Script.load("my-script.rb") { |script| script::INPUT = 3 }