Keeping track of the number of instances can very well be done via
DESTROY. I wouldn't put in a reference in the object though. Then
you make the count accessable outside your class, and you probably
don't want to do that.
Use something like:
package MyClass;
my $count = 0;
sub new {
my $proto = shift;
my $class = ref $proto || $proto;
$count ++;
my $obj = ....;
bless $obj => $class;
}
sub DESTROY {
$count --;
}
And do not call DESTROY yourself. Perl will do that for you.
Abigail
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