From: transfire@...
Date: 2006-07-23T06:00:03+09:00
Subject: Re: Meta-Meta-Programming, revisited


Erik Veenstra wrote:
> > > So, you should write aModule.meta_class.wrap_method (using
> > > Why's little meta library...).
> >
> > Well, that's the thing. I'd rather do
> >
> >   aModule.meta.wrap_method
> >   aModule.meta.pre_condition
>
> I agree. I added it to my (not-yet-published) version.
>
> What about the abuse of Array and Object, as arguments?

I'm not sure the Array abuse is needed if you limit the arguement to
the array itself, eg. don;t splat it whencalling the block. The reason
is that block unlik lambdas are more flexiable with array argument and
cna automatically splt them. Then you can just use #replace tpo change
the args if you want:

  $a = ["a", "b", "c"]

  def c(&block)
    block.call( $a )
  end

  c { |a| p a.replace([2,3]) }

  $a    #=> [2, 3]

But also,

  c { |a,b| p a+b }  #=> 5

I'll have to look at the Object abuse again and get back to you.

T.