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Re: $functions xor $methods

by particle (Vicar)
on Oct 30, 2002 at 01:43 UTC ( [id://208945]=note: print w/replies, xml ) Need Help??


in reply to $functions xor $methods

i don't have time to do the legwork, but it might be possible to use some magic combination of AUTOLOAD and goto &NAME to call the parent class if the function doesn't exist in the subclass.

hope that helps, Ovid

~Particle *accelerates*

Replies are listed 'Best First'.
Re: Re: $functions xor $methods
by BUU (Prior) on Oct 30, 2002 at 03:28 UTC
    Only problem is that it requires a hardcoded 'parent' value (unless theres some way to return that?) 
    sub AUTOLOAD
{
  if(defined &{__PARENT__::$AUTOLOAD})
  {
    goto &{__PARENT__::$AUTOLOAD}
  }
}

    [download]
    (note i left out the part about getting the right value in $AUTOLOAD, chopping out the package and stuff)
[reply]
[d/l]
      something like this seems to work and doesn't require hardcoded names. it just grabs the first parent method (in @ISA order) it finds: 
      sub AUTOLOAD {
    no strict;
    my $METHOD;
    ($METHOD = $AUTOLOAD) =~ s/.*:://;
    foreach my $PARENT (@ISA) {
        if(defined &{$PARENT.'::'.$METHOD}) {
            goto &{$PARENT.'::'.$METHOD}
        }
    }
}

      [download]
      either this, or use Damian's NEXT module.

      cheers,
      Aldo

      King of Laziness, Wizard of Impatience, Lord of Hubris

[reply]
[d/l]
      SUPER::$AUTOLOAD should work.
[reply]

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