From: Pit Capitain <pit@...>
Date: 2007-02-09T17:53:17+09:00
Subject: Re: How to "pass" the current binding's block to some other method?

Ezra Zygmuntowicz schrieb:
>  def old_try(x, y, z)
>    # ... do some other stuff first ...
>    yield self if block_given?
>  end
> 
>  def try(hash)
>    old_try(hash[:x], hash[:y], hash[:z], &yield)
>  end

Ezra, this isn't working. In this case:

>  try( :a => 'foo') { puts 'hi' }

yield is calling the block, which returns nil. Calling old_try with &nil 
is the same as calling it without a block, so block_given? is always 
false in old_try.

Regards,
Pit