1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
|
use strict;
use warnings;
use Test::More;
use Test::Fatal;
use Scalar::Util;
use Class::MOP;
use lib 't/cmop/lib';
{
package Foo;
use strict;
use warnings;
use metaclass;
__PACKAGE__->meta->make_immutable;
package Bar;
use strict;
use warnings;
use metaclass;
__PACKAGE__->meta->make_immutable;
package Baz;
use strict;
use warnings;
use metaclass 'MyMetaClass';
sub mymetaclass_attributes {
shift->meta->mymetaclass_attributes;
}
::is( ::exception { Baz->meta->superclasses('Bar') }, undef, '... we survive the metaclass incompatibility test' );
}
{
my $meta = Baz->meta;
ok( $meta->is_mutable, '... Baz is mutable' );
is(
Scalar::Util::blessed( Foo->meta ),
Scalar::Util::blessed( Bar->meta ),
'Foo and Bar immutable metaclasses match'
);
is( Scalar::Util::blessed($meta), 'MyMetaClass',
'Baz->meta blessed as MyMetaClass' );
ok( Baz->can('mymetaclass_attributes'),
'... Baz can do method before immutable' );
ok( $meta->can('mymetaclass_attributes'),
'... meta can do method before immutable' );
is( exception { $meta->make_immutable }, undef, "Baz is now immutable" );
ok( $meta->is_immutable, '... Baz is immutable' );
isa_ok( $meta, 'MyMetaClass', 'Baz->meta' );
ok( Baz->can('mymetaclass_attributes'),
'... Baz can do method after imutable' );
ok( $meta->can('mymetaclass_attributes'),
'... meta can do method after immutable' );
isnt( Scalar::Util::blessed( Baz->meta ),
Scalar::Util::blessed( Bar->meta ),
'Baz and Bar immutable metaclasses are different' );
is( exception { $meta->make_mutable }, undef, "Baz is now mutable" );
ok( $meta->is_mutable, '... Baz is mutable again' );
}
done_testing;
|
