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#!/usr/bin/env perl
use strict;
use warnings;
use Test::More tests => 31;
use Test::Exception;
my %destroyed;
do {
do {
package Class;
use Mouse;
has self => (
is => 'rw',
weak_ref => 1,
);
has type => (
is => 'rw',
);
sub DEMOLISH {
my $self = shift;
$destroyed{ $self->type }++;
}
};
};
sub do_test{
my $self = Class->new(type => 'accessor');
$self->self($self);
my $self2 = Class->new(type => 'middle');
my $self3 = Class->new(type => 'constructor', self => $self2);
$self2->self($self3);
for my $object ($self, $self2, $self3) {
ok(Scalar::Util::isweak($object->{self}), "weak reference");
ok($object->self->self->self->self, "we've got circularity");
}
}
do_test();
is($destroyed{accessor}, 1, "destroyed from the accessor");
is($destroyed{constructor}, 1, "destroyed from the constructor");
is($destroyed{middle}, 1, "casuality of war");
Class->meta->make_immutable();
ok(Class->meta->is_immutable, 'make_immutable made it immutable');
do_test();
is($destroyed{accessor}, 2, "destroyed from the accessor (after make_immutable)");
is($destroyed{constructor}, 2, "destroyed from the constructor (after make_immutable)");
is($destroyed{middle}, 2, "casuality of war (after make_immutable)");
ok(!Class->meta->get_attribute('type')->is_weak_ref, "type is not a weakref");
ok(Class->meta->get_attribute('self')->is_weak_ref, "self IS a weakref");
do {
package Class2;
use Mouse;
has value => (
is => 'rw',
default => 10,
weak_ref => 1,
);
};
ok(Class2->meta->get_attribute('value')->is_weak_ref, "value IS a weakref");
lives_ok {
my $obj = Class2->new;
is($obj->value, 10, "weak_ref doesn't apply to non-refs");
};
my $obj2 = Class2->new;
lives_ok {
$obj2->value({});
};
is_deeply($obj2->value, undef, "weakened the reference even with a nonref default");
do {
package Class3;
use Mouse;
has hashref => (
is => 'rw',
default => sub { {} },
weak_ref => 1,
predicate => 'has_hashref',
);
};
my $obj = Class3->new;
is($obj->hashref, undef, "hashref collected immediately because refcount=0");
ok($obj->has_hashref, 'attribute is turned into undef, not deleted from instance');
$obj->hashref({1 => 1});
is($obj->hashref, undef, "hashref collected between set and get because refcount=0");
ok($obj->has_hashref, 'attribute is turned into undef, not deleted from instance');
ok(Class3->meta->get_attribute('hashref')->is_weak_ref, "hashref IS a weakref");
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