MooseX::ArrayRef - blessed arrayrefs with Moose
Contents
Bugs And Limitations
LimitationsonSpeed
The accessors for mutable classes not significantly faster than Moose's traditional hashref-based
objects. For immutable classes, the speed up is bigger
Rate HashRef_M ArrayRef_M HashRef_I ArrayRef_I
HashRef_M 1016/s -- -1% -48% -55%
ArrayRef_M 1031/s 1% -- -47% -54%
HashRef_I 1953/s 92% 89% -- -13%
ArrayRef_I 2257/s 122% 119% 16% --
LimitationsonMutability
Things will probably break if you try to modify classes, add roles, etc "on the fly". Make your classes
immutable before instantiating even a single object.
LimitationsonInheritance
Inheritance isn't easy to implement with arrayrefs. The current implementation suffers from the following
limitations:
• Single inheritance only.
You cannot extend multiple parent classes.
• Inherit from other MooseX::ArrayRef classes only.
A MooseX::ArrayRef class cannot extend a non-MooseX::ArrayRef class. Even non-Moose classes which
are implemented using arrayrefs. (Of course, all Moose classes inherit from Moose::Object too, which
is just fine.)
Note that delegation (via Moose's "handles") is often a good alternative to inheritance.
IssueTracker
Please report any bugs to <http://rt.cpan.org/Dist/Display.html?Queue=MooseX-ArrayRef>.
Copyright And Licence
This software is copyright (c) 2012 by Toby Inkster.
This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5
programming language system itself.
Description
Objects implemented with arrayrefs rather than hashrefs are often faster than those implemented with
hashrefs. Moose's default object implementation is hashref based. Can we go faster?
Simply "use MooseX::ArrayRef" instead of "use Moose", but note the limitations in the section below.
The current implementation is mostly a proof of concept, but it does mostly seem to work.
Disclaimer Of Warranties
THIS PACKAGE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT
LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
perl v5.40.1 2025-08-14 MooseX::ArrayRef(3pm)
Name
MooseX::ArrayRef - blessed arrayrefs with Moose
See Also
Moose, MooseX::GlobRef, MooseX::InsideOut.
Synopsis
{
package Local::Person;
use Moose;
has name => (
is => 'ro',
isa => 'Str',
);
__PACKAGE__->meta->make_immutable;
}
{
package Local::Marriage;
use MooseX::ArrayRef;
has husband => (
is => 'ro',
isa => 'Local::Person',
);
has wife => (
is => 'ro',
isa => 'Local::Person',
);
__PACKAGE__->meta->make_immutable;
}
my $marriage = Local::Marriage->new(
wife => Local::Person->new(name => 'Alex'),
husband => Local::Person->new(name => 'Sam'),
);
use Data::Dumper;
use Scalar::Util qw(reftype);
print reftype($marriage), "\n"; # 'ARRAY'
print Dumper($marriage);
