bless do { my %self = (%{Colour->new($colour)}, %{Age->new($age)}); \%self }, $class;
####
package Colour {
use Scalar::Util 'refaddr';
my %colour;
sub new {
my $o = bless \do{my $var}, $_[0];
$colour{refaddr $o} = $_[1];
$o;
}
sub colour {$colour{refaddr $_[0]}}
};
package Age {
use Scalar::Util 'refaddr';
my %age;
sub new {
my $o = bless \do{my $var}, $_[0];
$age{refaddr $o} = $_[1];
$o;
}
sub age {$age{refaddr $_[0]}}
};
package Colour_and_Age {
our @ISA = qw[Age Colour];
use Scalar::Util 'refaddr';
sub new {
my ($class, $colour, $age) = @_;
... Now what? ...
}
}
##
##
use Scalar::Util 'refaddr';
package Colour {
use Scalar::Util 'refaddr';
my %colour;
sub new {bless \do{my $var}, $_[0]}
sub init {$colour{refaddr $_[0]} = $_[1]; $_[0]}
sub colour {$colour{refaddr $_[0]}}
};
package Age {
use Scalar::Util 'refaddr';
my %age;
sub new {bless \do{my $var}, $_[0]}
sub init {$age{refaddr $_[0]} = $_[1]; $_[0]}
sub age {$age{refaddr $_[0]}}
};
##
##
package Colour_and_Age {
use Scalar::Util 'refaddr';
our @ISA = qw[Age Colour];
sub new {bless \do{my $var}, $_[0]}
sub init (
my ($self, $colour, $age) = @_;
$self->Colour::init($colour);
$self->Age::init($age);
$self;
}
};
my $o = Colour_and_Age::->new->init(red => 42);