From: Trans <transfire@...>
Date: 2005-10-27T09:12:08+09:00
Subject: Re: Meta methods to govern meta data?

It's a plesant notation, but a couple issues with the ideas Gary
presents.

* How to dynamically set annotations? Even with this nice looking
notation you would still need a  way to do via normal methods.

* It's important to allow annotations for methods that do not
neccessarily exit. In this way annotations would be reusable.  For
example here is what you can do with facets/annotation.rb

  module MyAnnotations
    ann :foo, :comment => "foo is alwasy an example"
  end

  class MyClass
    include MyAnnotations

    ann self, :comment => "This is an annotated class."

    def foo
      puts "foo"
    end

    ann :foo, :author => "trans"

  end

  MyClass.ann.foo.author           #=> "trans"
  MyClass.ann.foo.comment       #=> "foo is alwasy an example"
  MyClass.ann.self.comment       #=> "This is an annotated class."
  MyClass.annotation.comment  #=> "This is an annotated class."

T.