From: Joao Pedrosa <joaopedrosa@...>
Date: 2005-01-30T16:02:17+09:00
Subject: Re: Ten Things Every Java Programmer Should Know About Ruby

Hi,

On Sun, 30 Jan 2005 14:59:23 +0900, Navindra Umanee
<navindra@cs.mcgill.ca> wrote:
> Joao Pedrosa <joaopedrosa@gmail.com> wrote:
> > > An object in Ruby may even change its type from one moment to the
> > > other.  A Socket object may suddenly become a File object.

It's documented:

------------------------ ri reopen -----------------------
-------------------------------------------------------------- IO#reopen
     ios.reopen(other_IO)         => ios
     ios.reopen(path, mode_str)   => ios
------------------------------------------------------------------------
     Reassociates _ios_ with the I/O stream given in _other_IO_ or to a
     new stream opened on _path_. This may dynamically change the actual
     class of this stream.

        f1 = File.new("testfile")
        f2 = File.new("testfile")
        f2.readlines[0]   #=> "This is line one\n"
        f2.reopen(f1)     #=> #<File:testfile>
        f2.readlines[0]   #=> "This is line one\n"
------------------------ ri reopen -----------------------

Well, it *is* documented. No surprise here.

Regards,
Joao