From: "trans.  (T. Onoma)" <transami@...>
Date: 2004-10-05T03:00:29+09:00
Subject: Re: Kernel#eval taking a block

On Monday 04 October 2004 11:11 am, Yukihiro Matsumoto wrote:
> Hi,
>
> In message "Re: Kernel#eval taking a block"
>
>     on Mon, 4 Oct 2004 23:23:22 +0900, "trans.  (T. Onoma)" 
<transami@runbox.com> writes:
> |Back to the original question: why Kernel#eval can't take a block?
>
> Because it's useless, for my eyes at least.  What do you want to
> accomplish by eval with a block?

How to get locals into evaluation?

 class T
    def initialize
     @x = 1
   end
   attr_reader :x
   def get_binding
     cool = "matz"
     return binding()
   end
 end
 t = T.new
 tb = t.get_binding
 eval "cool", tb  #=> "matz"
 a = proc {|c| c.upcase}
 eval "cool = a.call(cool)", tb

NameError: undefined local variable or method `a' for #<T:0x4032f038 @x=1>
        from (irb):15:in `get_binding'
        from (irb):15:in `get_binding'
        from (irb):19

t.