# $Id$
# Hash tied to optionally dynamically generate its values
# Copyright (C) 2005 Jan Kratochvil <project-www.jankratochvil.net@jankratochvil.net>
# 
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; exactly version 2 of June 1991 is required
# 
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
# 
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA


package My::Hash::Sub;
our $VERSION=do { my @r=(q$Revision$=~/\d+/g); sprintf "%d.".("%03d"x$#r),@r; };
our $CVS_ID=q$Id$;
use strict;
use warnings;
use My::Web;	# for &Wrequire
Wrequire 'My::Hash';
our @ISA=qw(My::Hash);
use Carp qw(cluck confess);


sub FETCH($$)
{
my($this,$key)=@_;

	my $val=$this->pass("FETCH",$key);
	return $val if $key=~/_sub$/;	# force
	return $val if !defined $val;	# 1-item array is intentional.
	return $val if "CODE" ne ref $val;
	return &{$val}($this,$key);
}

1;