# Copyright (c) 2006 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: Class.pm,v 1.8 2010/10/29 17:39:30 nagler Exp $
package Bivio::Util::Class;
use strict;
use base 'Bivio::ShellUtil';
use Bivio::UI::Facade;
use Bivio::Agent::TaskId;

our($VERSION) = sprintf('%d.%02d', q$Revision: 1.8 $ =~ /\d+/g);
my($_IDI) = __PACKAGE__->instance_data_index;

sub USAGE {
    return <<'EOF';
usage: b-class [options] command [args..]
commands
  info class -- return information about the class
  qualified_name class -- return fully qualified name for class
  super package -- return the list of superclasses for given package
EOF
}

sub info {
    my($self, $class) = @_;
    return
	unless my $pkg = Bivio::IO::ClassLoader->unsafe_map_require($class);
    my($file) = "$pkg.pm";
    $file =~ s{::}{/}g;
    no strict 'refs';
    return ${\${$pkg . '::VERSION'}} . ' ' . $INC{$file};
}

sub qualified_name {
    my($self, $name) = @_;
    return $self->use($name);
}

sub super {
    my($self, $package) = @_;
    return $self->use($package)->inheritance_ancestors;
}

1;