From: Jeremy Kemper <jeremy@...>
Date: 2007-12-18T10:27:58+09:00
Subject: Re: Some Ruby 1.9 loose ends to tie up

On 12/17/07, David Flanagan <david@davidflanagan.com> wrote:
> I've got a few lingering questions about Ruby 1.9 and I'm hoping you can
> provide a definitive answer so I can document them definitively:
>
> 1) Will Proc.binding be made to work in 1.9?

This is the only remaining incompatibility with Action View (part of
Rails) on Ruby 1.9. Several methods grab ERB's _erbout buffer from the
block binding rather than passing _erbout as an argument.

This allows, for example:

  def concat(string, binding)
    binding.eval('_erbout') << string
  end

  def some_widget_container(&block)
    concat '<div class="widget">', block.binding
    yield
    concat '</div>', block.binding
  end

  <% some_widget_container do %>
    widget contents
  <% end %>


Is there a new way to get the block's binding? Or even the caller's binding?

Best,
jeremy