From: Devin Mullins <twifkak@...>
Date: 2006-01-02T13:14:58+09:00
Subject: Re: Can't change the value of self

Wilson Bilkovich wrote:

>>>"Destructive" methods must alter self using that self's existing
>>>destructive methods.
>>>      
>>>
>This is why I can't do:
>class Fixnum
>  def double!
>    self *= 2
>  end
>end
>..right?  Too bad.
>  
>
Well, that, and what would "2.double!" do?

>Speaking of methods.. is there a way to do:
>class Something
>  def <<(a, b)
>    # do something with a and b
>  end
>end
>
>s = Something.new
>s << 'a', 'b'
>results in a syntax error.
>  
>
My guess is you're out of luck, there. But you could change it to take s 
<< ['a','b'] or s << 'a' << 'b'.

Devin