Nearly every reason to rebless (including salva's example of Class:StateMachine) are better served with facades, especially as inside-out. For example: 
package Facade::Base;

sub new {
    my $class = shift;
    my ($main) = @_;

    return bless \$main, $class;
}

package Facade::One;
use base 'Facade::Base';

sub example {
    my $self = shift;

    # foo() is a method on the object I expect to facade over
    $$self->foo( @args );
}

package main;

my $datastructure = Main::Class->new( %params );

my $facade1 = Facade::One->new( $datastructure );

# Now, I can call Facade::One's methods on $facade1.
# I can also change the facade by doing something like:
my $facade2 = Facade::Two->new( $$facade1 );

[download]
My criteria for good software:
  1. Does it work?
  2. Can someone else come in, make a change, and be reasonably certain no bugs were introduced?

In reply to Re: Re-blessing || Re-constructing objects by dragonchild
in thread Re-blessing || Re-constructing objects by blogical

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