From: Brian Candler <B.Candler@...>
Date: 2007-03-18T19:30:30+09:00
Subject: Re: accessing methods from the blocks caller

On Sun, Mar 18, 2007 at 02:30:04PM +0900, andrew wrote:
> class Test
>     def method1
>     end
> 
>     def method2
>         accept_block do # accept_block is not part of the Test class
>             ...
>             method1    # I want to call method1 from the class I'm in, but  I'm getting undefined method for method1
>             ...
>         end
>     end
> end
> 
> I understand why I would be getting this error, but I don't know how to fix 
> it.  Is there a way to access the caller in the block in order to access the 
> method of it?  Kernel.caller is the closest I found, but it's not what I 
> want.

As people have said, this *should* work. Post a complete example where it
fails, and the error message.

Having said that, if there is a need to, the current object is called 'self'
and can be passed around explicitly if you wish:

class Test
  def accept_block(some_object)
    yield some_object
  end

  def method1
    puts "whoo!"
  end

  def method2
    accept_block(self) do |s|
      # ...
      s.method1
      # ...
    end
  end
end
Test.new.method2   # prints "whoo!"

---- But this particular example works without:

class Test
  def accept_block
    yield
  end

  def method1
    puts "whoo!"
  end

  def method2
    accept_block do
      # ...
      method1
      # ...
    end
  end
end
Test.new.method2   # prints "whoo!"

Regards,

Brian.