> (EDIT: Applied in Perl OO one gets private class-variables in package scope instead of public package variables!)
lets elaborate, in the following code you can see a simplified standard Perl class with private and public variables and methods.
The private data is only visible and accessible within the methods because of Perl's closure mechanism.
{
package TEST_CLASS;
my $private_class_var;
our $public_class_var;
my $private_method =
sub {
my ($self,@args)=@_;
print "-- private_method(@args)\n";
};
sub public_method {
my ($self,@args)=@_;
print "- public_method(@args)\n";
$self->$private_method(7..9);
}
sub new {
my ($class,%args)=@_;
bless \%args, $class;
return \%args;
}
}
my $obj = TEST_CLASS->new(a=>1,b=>2);
$obj->public_method(1..3);
$obj->private_method(4..6);
prints
- public_method(1 2 3)
-- private_method(7 8 9)
Can't locate object method "private_method" via package "TEST_CLASS" a
+t /tmp/tst_pkg.pl line 32.
So, does this count as real life example?
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