README
1NAME
2 MooseX::ArrayRef - blessed arrayrefs with Moose
3
4SYNOPSIS
5 {
6 package Local::Person;
7 use Moose;
8 has name => (
9 is => 'ro',
10 isa => 'Str',
11 );
12 __PACKAGE__->meta->make_immutable;
13 }
14
15 {
16 package Local::Marriage;
17 use MooseX::ArrayRef;
18 has husband => (
19 is => 'ro',
20 isa => 'Local::Person',
21 );
22 has wife => (
23 is => 'ro',
24 isa => 'Local::Person',
25 );
26 __PACKAGE__->meta->make_immutable;
27 }
28
29 my $marriage = Local::Marriage->new(
30 wife => Local::Person->new(name => 'Alex'),
31 husband => Local::Person->new(name => 'Sam'),
32 );
33
34 use Data::Dumper;
35 use Scalar::Util qw(reftype);
36 print reftype($marriage), "\n"; # 'ARRAY'
37 print Dumper($marriage);
38
39DESCRIPTION
40 Objects implemented with arrayrefs rather than hashrefs are often faster
41 than those implemented with hashrefs. Moose's default object
42 implementation is hashref based. Can we go faster?
43
44 Simply `use MooseX::ArrayRef` instead of `use Moose`, but note the
45 limitations in the section below.
46
47 The current implementation is mostly a proof of concept, but it does
48 mostly seem to work.
49
50BUGS AND LIMITATIONS
51 Limitations on Speed
52 The accessors for mutable classes not significantly faster than Moose's
53 traditional hashref-based objects. For immutable classes, the speed up is
54 bigger
55
56 Rate HashRef_M ArrayRef_M HashRef_I ArrayRef_I
57 HashRef_M 1016/s -- -1% -48% -55%
58 ArrayRef_M 1031/s 1% -- -47% -54%
59 HashRef_I 1953/s 92% 89% -- -13%
60 ArrayRef_I 2257/s 122% 119% 16% --
61
62 Limitations on Mutability
63 Things will probably break if you try to modify classes, add roles, etc
64 "on the fly". Make your classes immutable before instantiating even a
65 single object.
66
67 Limitations on Inheritance
68 Inheritance isn't easy to implement with arrayrefs. The current
69 implementation suffers from the following limitations:
70
71 * Single inheritance only.
72
73 You cannot extend multiple parent classes.
74
75 * Inherit from other MooseX::ArrayRef classes only.
76
77 A MooseX::ArrayRef class cannot extend a non-MooseX::ArrayRef class.
78 Even non-Moose classes which are implemented using arrayrefs. (Of
79 course, all Moose classes inherit from Moose::Object too, which is
80 just fine.)
81
82 Note that delegation (via Moose's `handles`) is often a good alternative
83 to inheritance.
84
85 Issue Tracker
86 Please report any bugs to
87 <http://rt.cpan.org/Dist/Display.html?Queue=MooseX-ArrayRef>.
88
89SEE ALSO
90 Moose, MooseX::GlobRef, MooseX::InsideOut.
91
92AUTHOR
93 Toby Inkster <tobyink@cpan.org>.
94
95COPYRIGHT AND LICENCE
96 This software is copyright (c) 2012 by Toby Inkster.
97
98 This is free software; you can redistribute it and/or modify it under the
99 same terms as the Perl 5 programming language system itself.
100
101DISCLAIMER OF WARRANTIES
102 THIS PACKAGE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED
103 WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
104 MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
105
106