package Reblesser;

use strict;
use warnings;

use base qw(Class::Accessor);
__PACKAGE__->mk_accessors(qw(reblessed));

use Scalar::Util qw(blessed);

# reblessed holds pairs [ (object => original_package) ]

sub new {
    my $self = shift;
    return $self->SUPER::new({ reblessed => [] });
}

sub rebless {
    my $self = shift;
    my $obj = shift;
    my $package = shift;
    die "not blessed" unless blessed $obj;
    push @{$self->reblessed}, [ $obj, blessed $obj ];
    warn "[DEBUG] reblessing $obj to $package\n";
    return bless $obj, $package
}

sub DESTROY {
    my $self = shift;
    for (@{$self->reblessed}) {
        my ($obj, $pkg) = @$_;
        warn "[DEBUG] reverting blessing on $obj: back to $pkg\n";
        bless $obj, $pkg;
    }
}