From: Matthew Kerwin <lists@...>
Date: 2013-04-12T07:57:05+09:00
Subject: Re: confusion with Struct class

Alex Newone wrote in post #1105332:
> Correct me if i'm wrong, but since when ruby 1.9 uses "name" for class
> name? I always though that it's Class.new.class.name or Class.class.name
> that gives proper result.

As Jesus said: "The object x that is passed into the block is the class
that is being created by Struct."

E.g.:
  irb(main):001:0> Foo = Struct.new(:a) {|x| p [x, x.class] }
  [#<Class:0x0000000287a5a8>, Class]
  => Foo

So my `x` is the actual `Foo` class object, not an instance of it.  Thus
the following are effectively equivalent:

  Foo = Struct.new(:a) do |x|
    def x.bar
      "#{name}bar"
    end
  end

  class Foo
    attr_accessor :a
    def Foo.bar
      "#{name}bar"
    end
  end

You can see that `name` is being called on the object on which the
method Foo is defined, which is the object Foo, which is an instance of
Class.

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