module_name => 'Moose::Policy',
license => 'perl',
requires => {
- 'Moose' => '0.11',
+ 'Scalar::Util' => '1.18',
+ 'Carp' => '0',
+ 'Moose' => '0.11',
},
optional => {
},
Revision history for Perl extension Moose-Policy
-0.01
- - module created
\ No newline at end of file
+0.01 Wed. Aug. 9, 2006
+ - module created by Stevan Little and Eric Willhelm,
+ with input form Matt Trout and the #moose crew.
\ No newline at end of file
MANIFEST.SKIP
README
lib/Moose/Policy.pm
+lib/Moose/Policy/FollowPBP.pm
+lib/Moose/Policy/JavaAccessors.pm
+lib/Moose/Policy/SingleInheritence.pm
t/000_load.t
t/001_basic.t
t/002_dynamic.t
t/003_saidso.t
+t/010_FollowPBP_test.t
+t/011_JavaAccessors_test.t
+t/020_SingleInheritence_test.t
+t/pod.t
+t/pod_coverage.t
This module requires these other modules and libraries:
+ Carp
+ Scalar::Util
Moose
COPYRIGHT AND LICENCE
my $package = caller();
$package->can('meta') and
- croak("'$package' already has a meta() method");
+ croak("'$package' already has a meta() method, this is very problematic");
my $metaclass = 'Moose::Meta::Class';
$metaclass = $policy->metaclass($package)
package Foo;
- use Moose::Policy 'My::MooseBestPractice';
+ use Moose::Policy 'Moose::Policy::FollowPBP';
use Moose;
has 'bar' => (is => 'rw', default => 'Foo::bar');
has 'baz' => (is => 'ro', default => 'Foo::baz');
+ # Foo now has (get, set)_bar methods as well as get_baz
+
=head1 DESCRIPTION
-This class allows you to specify your project-wide or company-wide Moose
-meta policy in one location.
+This module allows you to specify your project-wide or even company-wide
+Moose meta-policy.
-=head1 CAVEAT
+Most all of Moose's features can be customized through the use of custom
+metaclasses, however fiddling with the metaclasses can be hairy. Moose::Policy
+removes most of that hairiness and makes it possible to cleanly contain
+a set of meta-level customizations in one easy to use module.
-=over 4
+This is the first release of this module and should be considered to be
+complete by any means. It is very basic implemenation at this point and
+will likely get more feature-full over time, as people request features.
+So if you have a suggestion/need/idea, please speak up.
+
+=head2 What is a meta-policy?
+
+A meta-policy is a set of custom Moose metaclasses which can be used to
+implement a number of customizations and restrictions on a particular
+Moose class.
+
+For instance, L<Moose::Policy::SingleInheritence> enforces that all
+specified Moose classes can only use single inheritence. It does this
+by trapping the call to C<superclasses> on the metaclass and only allowing
+you to assign a single superclass.
+
+The L<Moose::Policy::FollowPBP> policy changes the default behavior of
+accessors to fit the recomendations found in Perl Best Practices.
+
+=head1 CAVEATS
-=item YOU MUST
+=head2 Always load Moose::Policy first.
+
+You B<must> put the following line of code:
use Moose::Policy 'My::Policy';
-=item BEFORE
+before this line:
use Moose;
-=back
+This is because Moose::Policy must be given the opportunity to set the
+custom metaclass before Moose has set it's default metaclass. In fact, if
+you try to set a Moose::Policy and there is a C<meta> method available,
+not only will kittens die, but your program will too.
+
+=head2 Policys are class scoped
+
+You must repeat the policy for each class you want to us it. It is B<not>
+inherited. This may change in the future, probably it will be a Moose::Policy
+itself to allow Moose policys to be inherited.
-=head2 The Policy
+=head1 THE POLICY
-The argument to C<import()> is a package name. This package is
-require()'d and queried for the following constants:
+A Policy is set by passing C<Moose::Polocy::import()> a package name. This
+package is then queried for what metaclasses it should use. The possible
+metaclass values are:
=over
-=item metaclass
+=item B<metaclass>
-Defaults to C<'Moose::Meta::Class'>.
+This defaults to C<Moose::Meta::Class>.
-=item attribute_metaclass
+=item B<attribute_metaclass>
-=item instance_metaclass
+=item B<instance_metaclass>
-=item method_metaclass
+=item B<method_metaclass>
=back
-These values are then used to setup your $package->meta object.
+For examples of what a Policy actually looks like see the examples in
+C<Moose::Policy::> and the test suite. More docs to come on this later (probably
+a cookbook or something).
-Your policy package could be simply a list of constants.
+=head1 FUTURE PLANS
- package My::Policy;
- use constant attribute_metaclass => 'My::Moose::Meta::Attribute';
+As I said above, this is the first release and it is by no means feature complete.
+There are a number of thoughts on the future direction of this module. Here are
+some random thoughts on that, in no particular order.
-But the methods are told what package is using the policy, so they could
-concievably give different answers.
-
- package My::FancyPolicy;
+=over 4
- sub attribute_metaclass {
- my $self = shift;
- my ($user_package) = @_;
- return('Our::Attributes::Stricter')
- if $user_package =~ m/^Private::Banking::Money/;
- return('Our::Attributes');
- }
+=item Make set of policy roles
-=head1 SEE ALSO
+Roles are an excellent way to combine sets of behaviors together into one, and
+custom metaclasses are actually better composed by roles then by inheritence.
+The ideal situation is that this module will provide a set of roles which can be
+used to compose you meta-policy with relative ease.
-L<Moose>, L<Moose::Meta::Class>
+=back
=head1 BUGS
=pod
+=head1 NAME
+
+Moose::Policy::FollowPBP - Follow the recomendations in Perl Best Practices
+
+=head1 SYNOPSIS
+
+ package Foo;
+
+ use Moose::Policy 'Moose::Policy::FollowPBP';
+ use Moose;
+
+ has 'bar' => (is => 'rw', default => 'Foo::bar');
+ has 'baz' => (is => 'ro', default => 'Foo::baz');
+
+ # Foo now has (get, set)_bar methods as well as get_baz
+
+=head1 DESCRIPTION
+
+This meta-policy changes the behavior of Moose's default behavior in
+regard to accessors to follow the recomdnations found in Damian
+Conway's book Perl Best Practices.
+
+=head1 BUGS
+
+All complex software has bugs lurking in it, and this module is no
+exception. If you find a bug please either email me, or add the bug
+to cpan-RT.
+
+=head1 AUTHOR
+
+Stevan Little E<lt>stevan@iinteractive.comE<gt>
+
+=head1 COPYRIGHT AND LICENSE
+
+Copyright 2006 by Infinity Interactive, Inc.
+
+L<http://www.iinteractive.com>
+
+This library is free software; you can redistribute it and/or modify
+it under the same terms as Perl itself.
+
=cut
=pod
+=head1 NAME
+
+Moose::Policy::JavaAccessors - BeCause EveryOne Loves CamelCase
+
+=head1 SYNOPSIS
+
+ package Foo;
+
+ use Moose::Policy 'Moose::Policy::JavaAccessors';
+ use Moose;
+
+ has 'bar' => (is => 'rw', default => 'Foo::bar');
+ has 'baz' => (is => 'ro', default => 'Foo::baz');
+
+ # Foo now has (get, set)Bar methods as well as getBaz
+
+=head1 DESCRIPTION
+
+This meta-policy changes the behavior of Moose's default behavior in
+regard to accessors to follow Java convention and use CamelCase.
+
+=head1 CAVEAT
+
+This does a very niave conversion to CamelCase, basically it just
+runs C<ucfirst> on the attribute name. Since I don't use CamelCase
+(at least not anymore), this is good enough. If you really want to
+use this, and need a more sophisicated conversion, patches welcome :)
+
+=head1 BUGS
+
+All complex software has bugs lurking in it, and this module is no
+exception. If you find a bug please either email me, or add the bug
+to cpan-RT.
+
+=head1 AUTHOR
+
+Stevan Little E<lt>stevan@iinteractive.comE<gt>
+
+=head1 COPYRIGHT AND LICENSE
+
+Copyright 2006 by Infinity Interactive, Inc.
+
+L<http://www.iinteractive.com>
+
+This library is free software; you can redistribute it and/or modify
+it under the same terms as Perl itself.
+
=cut
=pod
+=head1 NAME
+
+Moose::Policy::SingleInheritence - Why would you ever need more than one?
+
+=head1 SYNOPSIS
+
+ package Foo;
+
+ use Moose::Policy 'Moose::Policy::SingleInheritence';
+ use Moose;
+
+ package Bar;
+
+ use Moose::Policy 'Moose::Policy::SingleInheritence';
+ use Moose;
+
+ package Foo::Bar;
+
+ use Moose::Policy 'Moose::Policy::SingleInheritence';
+ use Moose;
+
+ extends 'Foo', 'Bar'; # BOOM!!!!
+
+=head1 DESCRIPTION
+
+This module restricts Moose's C<extends> keyword so that you can only assign
+a single superclass.
+
+This is mostly an example of how you can restrict behavior with meta-policies
+in addition to extending and/or customising them. However, sometimes enforcing
+a policy like this can be a good thing.
+
+=head1 BUGS
+
+All complex software has bugs lurking in it, and this module is no
+exception. If you find a bug please either email me, or add the bug
+to cpan-RT.
+
+=head1 AUTHOR
+
+Stevan Little E<lt>stevan@iinteractive.comE<gt>
+
+=head1 COPYRIGHT AND LICENSE
+
+Copyright 2006 by Infinity Interactive, Inc.
+
+L<http://www.iinteractive.com>
+
+This library is free software; you can redistribute it and/or modify
+it under the same terms as Perl itself.
+
=cut
use strict;
use warnings;
-use Test::More 'no_plan';
+use Test::More tests => 11;
BEGIN {
use_ok('Moose::Policy');
use strict;
use warnings;
-use Test::More 'no_plan';
+use Test::More tests => 12;
BEGIN {
use_ok('Moose::Policy');
use strict;
use warnings;
-use Test::More 'no_plan';
+use Test::More tests => 22;
BEGIN {
use_ok('Moose::Policy');
use strict;
use warnings;
-use Test::More 'no_plan';
+use Test::More tests => 28;
BEGIN {
use_ok('Moose::Policy');
is($foo->get_bar, 'Foo::bar', '... got the right default value');
is($foo->get_baz, 'Foo::baz', '... got the right default value');
+{
+ package Bar;
+ use Moose::Policy 'Moose::Policy::FollowPBP';
+ use Moose;
+
+ extends 'Foo';
+
+ has 'boing' => (is => 'rw', default => 'Bar::boing');
+}
+
+isa_ok(Bar->meta, 'Moose::Meta::Class');
+is(Bar->meta->attribute_metaclass, 'Moose::Policy::FollowPBP::Attribute', '... got our custom attr metaclass');
+
+isa_ok(Bar->meta->get_attribute('boing'), 'Moose::Policy::FollowPBP::Attribute');
+
+my $bar = Bar->new;
+isa_ok($bar, 'Bar');
+isa_ok($bar, 'Foo');
+
+can_ok($bar, 'get_boing');
+can_ok($bar, 'set_boing');
+
+is($bar->get_boing, 'Bar::boing', '... got the right default value');
+$bar->set_boing('Woot!');
+is($bar->get_boing, 'Woot!', '... got the right changed value');
+
+{
+ package Baz;
+ use Moose;
+
+ extends 'Bar';
+
+ has 'bling' => (is => 'ro', default => 'Baz::bling');
+}
+
+isa_ok(Baz->meta, 'Moose::Meta::Class');
+is(Baz->meta->attribute_metaclass, 'Moose::Meta::Attribute', '... got our custom attr metaclass');
+
+isa_ok(Baz->meta->get_attribute('bling'), 'Moose::Meta::Attribute');
+
+my $baz = Baz->new;
+isa_ok($baz, 'Baz');
+isa_ok($baz, 'Bar');
+isa_ok($baz, 'Foo');
+
+can_ok($baz, 'bling');
+
+is($baz->bling, 'Baz::bling', '... got the right default value');
use strict;
use warnings;
-use Test::More 'no_plan';
+use Test::More tests => 11;
BEGIN {
use_ok('Moose::Policy');
use strict;
use warnings;
-use Test::More 'no_plan';
+use Test::More tests => 2;
use Test::Exception;
BEGIN {
projects / gitmo/Moose-Policy.git / commitdiff