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.