From: Ryan Ingram <ryani.spam@...>
Date: 2008-01-30T07:16:35+09:00
Subject: Re: what's the diff between puts y and puts "#{y}" in class_

Yep, you've got it exactly.

On 1/28/08, 7stud -- <bbxx789_05ss@yahoo.com> wrote:
> Thanks for the explanation,   I've been watching this thread and waiting
> for an explanation that I could comprehend.  If I understand your
> explanation correctly, the steps are:
>
> 1) The substitution in the string:
>
> str =<<STR
> def hello
>   puts #{y}
> end
> STR
>
> is performed.  The scope is the global scope, so the string becomes:
>
> str =<<STR
> def hello
>   puts first
> end
> STR
>
> 2)  The string is class_eval'ed in the scope of class T, producing:
>
> class T
>   def first
>      "hello"
>   end
>
>   def second
>      "chunky bacon"
>   end
>
>  def hello
>     puts first
>  end
> end
>
> 3)  When the method hello is called, the line:
>
> puts first
>
> outputs the return value of the first method.