From: Mauricio Fernandez <mfp@...>
Date: 2005-12-16T18:40:18+09:00
Subject: Re: [PATCH] Re: IO.open not calling close in block form?

On Fri, Dec 16, 2005 at 12:12:15PM +0900, nobuyoshi nakada wrote:
> Hi,
> 
> At Fri, 16 Dec 2005 10:45:35 +0900,
> Mauricio Fernandez wrote in [ruby-core:06912]:
> > What about this?
> 
> It won't work fine if closed? method is overridden.

?

$ ./ruby -ve 'open("/dev/null") {|f| def f.close; $stdout.puts "closed"; end; def f.closed?; false end; raise ArgumentError }'
ruby 1.8.4 (2005-11-02) [i686-linux]
closed
-e:1: ArgumentError (ArgumentError)
        from -e:1
$ ./ruby -ve 'open("/dev/null") {|f| def f.close; $stdout.puts "closed"; end; def f.closed?; false end;  }'
ruby 1.8.4 (2005-11-02) [i686-linux]
closed


if (!RTEST(rb_io_closed(io)))  bypasses normal dispatching, doesn't it?

-- 
Mauricio Fernandez