I would use Carp::confess in this case. And I probably wouldn't check if the method was overloaded on new(). Please consider the following example: 

package MyPackage;

use strict;
use warnings;

use Carp qw(confess);

sub new {
    my ($class) = @_;
    my $self = {};
    bless $self, $class;
    return $self;
}

sub abstract_method {
    my ($self) = @_;

    my ($method) = ( caller(0) )[3];
    confess "${method} should be overloaded.";
}

package main;

my $p = MyPackage->new();
$p->abstract_method();

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Don't you think it is cleaner?

Igor 'izut' Sutton
your code, your rules.

In reply to Re^2: Inheritance and calling a subclass method *from* a baseclass method... by izut
in thread Inheritance and calling a subclass method *from* a baseclass method... by EvanK

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