To make even neater write:
sub new {
my $pkg = shift;
return bless {}, ref $pkg || $pkg;
}
to be able to pull off tricks like this:
use strict;
use warnings;
package BaseClass;
sub new {
my $pkg = shift;
bless {}, ref $pkg || $pkg;
}
sub bar {
$_[0]->{'BaseClass::bar'} = $_[1];
}
package SubClass;
our @ISA = qw/BaseClass/;
package main;
my $obj = SubClass->new;
my $foo = $obj->new;
printf "obj isa %s\nfoo isa %s\n", $obj, $foo;
Using the bless {}, ref $pkg || $pkg idiom you are
writing classes that are safe to subclass.
Do have a look at Damian Conways excellent book Object Oriented Perl
Kay
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