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package PersonVisitor;
use Class::Std; # handles all basic stuff like constructors etc.
sub visit_Person {
my ( $self, $object ) = @_;
print "Person name is ", $object->get_name(), "\n";
}
package Person;
use Class::Std;
my %name : ATTR(:name<name> :default<anonymous>);
sub accept { $_[1]->visit_Person( $_[0] ) }
package main;
my @person_from = ();
for (qw(Gamma Helm Johnson Vlissides)) {
push @person_from, Person->new( { name => $_ } );
}
my $visitor = PersonVisitor->new();
for (@person_from) {
$_->accept($visitor);
}
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