steals python directors and adapts to perl5

Examples/test-suite/perl5/director_nested_runme.pl

@@ -0,0 +1,59 @@
+use strict;
+use warnings;
+use Test::More tests => 9;
+BEGIN { use_ok 'director_nested' }
+require_ok 'director_nested';
+
+{
+  package A;
+  use base 'director_nested::FooBar_int';
+  sub do_step { 'A::do_step;' }
+  sub get_value { 'A::get_value' }
+}
+
+my $a = A->new();
+isa_ok $a, 'A';
+
+is $a->step(), "Bar::step;Foo::advance;Bar::do_advance;A::do_step;",
+   'A virtual resolution';
+
+{
+  package B;
+  use base 'director_nested::FooBar_int';
+  sub do_advance { my($self) = @_;
+    return "B::do_advance;" . $self->do_step();
+  }
+  sub do_step { "B::do_step;" }
+  sub get_value { 1 }
+}
+
+my $b = B->new();
+isa_ok $b, 'B';
+is $b->step(), "Bar::step;Foo::advance;B::do_advance;B::do_step;",
+   'B virtual resolution';
+
+{
+  package C;
+  use base 'director_nested::FooBar_int';
+  our $in_do_advance = 0;
+  sub do_advance { my($self) = @_;
+    # found a case where upcall didn't happen right in a perl space
+    # SUPER:: call.
+    die "SUPERCALL RESOLVE FAILURE" if $in_do_advance;
+    local $in_do_advance = 1;
+    return "C::do_advance;" .
+      $self->SUPER::do_advance();
+  }
+  sub do_step { "C::do_step;" }
+  sub get_value { 2 }
+  sub get_name { my($self) = @_;
+    return $self->director_nested::FooBar_int::get_name() . " hello";
+  }
+}
+
+my $cc = C->new();
+isa_ok $cc, 'C';
+my $c = director_nested::FooBar_int::get_self($cc);
+$c->advance();
+is $c->get_name(), "FooBar::get_name hello";
+is $c->name(), "FooBar::get_name hello";