From: Sam Roberts <sroberts@...>
Date: 2004-02-13T05:52:02+09:00
Subject: Re: Return value of foo=

Quoteing matz@ruby-lang.org, on Fri, Feb 13, 2004 at 05:44:48AM +0900:
> In message "Return value of foo=" >     on 04/02/13, Gavin Kistner <gavin@refinery.com> writes:
> |The question is, is it possible to change the return value of a foo= 
> |method to NOT be the argument?
> 
> The value of assignment is defined to be its right hand value, even
> when it calls a method internally.  You need to call "date=" method
> explicitly to receive return value, e.g.
> 
>   puts t3.send(:date=, 11)

Ok, now I'm the confused one... :-) Why does it not look like that in irb?

[ensemble] ~/p/ruby $ irb
irb(main):001:0> class Foo; def bar=(b); @bar = b; self; end; def
bar; @bar; end; end
nil
irb(main):002:0> f = Foo.new
#<Foo:0x16ded4>
irb(main):003:0> f.bar = 9
#<Foo:0x16ded4 @bar=9>
  ^---- it looks like the value of the expression is "f", not "9".

  Is this just an oddity of irb?

irb(main):004:0> f.bar
9

Thanks,
Sam