# Copyright (c) 2004-2007 bivio Software, Inc.  All Rights Reserved.
#
# Visit http://www.bivio.biz for more info.
# 
# This library is free software; you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as
# published by the Free Software Foundation; either version 2.1 of the
# License, or (at your option) any later version.
# 
# This library 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
# Lesser General Public License for more details.
# 
# You should have received a copy of the GNU Lesser General Public
# License along with this library;  If not, you may get a copy from:
# http://www.opensource.org/licenses/lgpl-license.html
# 
# $Id: EnumDelegator.pm,v 1.8 2010/09/08 21:48:26 nagler Exp $
package Bivio::Type::EnumDelegator;
use strict;
use Bivio::Base 'Type.Enum';

our($VERSION) = sprintf('%d.%02d', q$Revision: 1.8 $ =~ /\d+/g);
our($AUTOLOAD);
my($_MAP) = {};

sub AUTOLOAD {
    my($proto) = shift;
    my($method) = $AUTOLOAD =~ /([^:]+)$/;
    return
	if $method eq 'DESTROY';
    my($c) = ref($proto) || $proto;
    # can() returns a reference to the method to invoke
    # use this so delegates can be subclassed
    $_MAP->{$c} ||= Bivio::IO::ClassLoader->delegate_require($c);
    my($dispatch) = $_MAP->{$c}->can($method);
    b_die('method not found: ', $c, '->', $method)
        unless $dispatch;
    return ref($proto) ? $dispatch->($proto, @_) : $_MAP->{$c}->$method(@_);
}

sub compile {
    my($proto, $values) = @_;
    return $proto->SUPER::compile(
	$values || b_use('IO.ClassLoader')->delegate_require_info($proto),
    );
}

sub is_continuous {
    return 0;
}

1;