Perl 为什么MooseX::存储不';有些对象似乎没有遵循属性特征?
我准备了一个小测试用例来演示我的问题:Perl 为什么MooseX::存储不';有些对象似乎没有遵循属性特征?,perl,serialization,moose,Perl,Serialization,Moose,我准备了一个小测试用例来演示我的问题: package P1; use Moose; use MooseX::Storage; with Storage; has 'blah' => ( is => 'rw', ); package P2; use Moose; use MooseX::Storage; with Storage; has 'lol' => ( is => 'rw', traits => ['DoNotSerialize
package P1;
use Moose;
use MooseX::Storage;
with Storage;
has 'blah' => (
is => 'rw',
);
package P2;
use Moose;
use MooseX::Storage;
with Storage;
has 'lol' => (
is => 'rw',
traits => ['DoNotSerialize']
);
package P3;
use Moose;
extends 'P2';
has 'magic' => (
is => 'rw',
);
package Test;
my $obj = P3->new(
magic => 'This ok!',
lol => sub { 'weee' }
);
my $stored = P1->new(blah => $obj);
use Data::Dumper; print Dumper ($stored->pack);
我希望这会打印对象,但不会打印P2包中的“lol”属性-但是,我仍然可以在$stored->pack
$VAR1 = {
'__CLASS__' => 'P1',
'blah' => bless( {
'magic' => 'This ok!',
'lol' => sub { "DUMMY" }
}, 'P3' )
};
我使用MooseX::Storage是错误的,还是这看起来像bug行为?是的,看起来像bug。您能否将其转换为使用test::More的测试,并将其提交到RT队列,然后有人(可能是我)会解决这个问题 注意,如果转储$obj->store,您会看到trait正确地应用于direct属性,但它似乎在继承过程中丢失了
您可以在中报告针对MooseX::Storage的bug您可以将“blah”作为P3的isa
has 'blah' => (
is => 'rw',
isa => 'P3',
);
现在Dumper($stored->pack)显示了这个
$VAR1 = {
'__CLASS__' => 'P1',
'blah' => {
'__CLASS__' => 'P3',
'magic' => 'This ok!'
}
};
对于这个Moose对象,哪一个看起来是正确的序列化?我知道这是旧的,但实际上它似乎不是一个bug。正如“draegtun”所指出的,您缺少类型信息,因此“blah”属性实际上根本没有被MooseX::Storage序列化。如果它被序列化,您将不会看到“bless”,而是看到“CLASS”键。MooseX::Storage做的最多——它根据属性中提供的类型约束进行崩溃,如果没有类型约束,它就只能猜测了。