On Thu, Jul 12, 2012 at 10:38:32AM -0500, Patrick R. Michaud wrote:
> On Thu, Jul 12, 2012 at 05:36:58PM +0300, Gabor Szabo wrote:
> > The following script leaves and epty 'data.txt' behind.
> > Only if I call $fh.close is the file contents saved.
> >
> > Is this a feature?
> >
> > use v6;
> >
> > my $fh = open 'data.txt', :w;
> > $fh.print("hello\n");
>
> While Rakudo and Parrot _should_ be closing the file upon
> program exit, it's still a good idea to close filehandles
> explicitly. Since the GC doesn't have reference countfing,
> it's not always the case that filehandles are automatically
> closed as soon as the last reference is broken, thus you
> really want to close the filehandle explicitly.
>
> It might be good for Rakudo and/or Parrot to have an option
> to issue a warning whenever a open filehandle is closed due to
> garbage collection, though.
Could that be via a mechanism that could be applied to any object?
I imagine they'll be other kinds of objects that have similar issues and
needs.
Tim.
