From: nobu.nokada@...
Date: 2003-06-21T23:29:21+09:00
Subject: Re: In 1.8.0 nil.to_s is not the same as ""

Hi,

At Sat, 21 Jun 2003 21:41:56 +0900,
Han Holl wrote:
> Yes, thanks. Works fine now, but there is an incompatibilty with 1.6.8:
> obj.send("") used to be OK, (dispatched to method_missing), and now gives an error:
> in `send': interning empty string (ArgumentError)

Well, I guess it is caused from:

* there's an incompatiblity for #intern already, which empty
  string is not allowed as symbol in 1.8

  $ ruby-1.6 -e 'p "".intern'
  :
  $ ruby-1.8 -e 'p "".intern'
  -e:1:in `intern': interning empty string (ArgumentError)
	from -e:1

* and method name should be a symbol

  $ ruby-1.6 -e 'send(Object.new)'
  -e:1:in `send': #<Object:0x402b8a90> is not a symbol (TypeError)
	from -e:1

IMHO, these just hadn't been reflected on Kernel#send yet.

-- 
Nobu Nakada