use Sub::Exporter;
-our $VERSION = '0.05';
+our $VERSION = '0.07';
+our $AUTHORITY = 'cpan:STEVAN';
use Moose ();
my $role = $CALLER;
return $METAS{$role} if exists $METAS{$role};
-
+
# make a subtype for each Moose class
subtype $role
=> as 'Role'
=> where { $_->does($role) }
- unless find_type_constraint($role);
+ => optimize_as { blessed($_[0]) && $_[0]->can('does') && $_[0]->does($role) }
+ unless find_type_constraint($role);
- my $meta;
- if ($role->can('meta')) {
- $meta = $role->meta();
- (blessed($meta) && $meta->isa('Moose::Meta::Role'))
+ my $meta;
+ if ($role->can('meta')) {
+ $meta = $role->meta();
+ (blessed($meta) && $meta->isa('Moose::Meta::Role'))
|| confess "You already have a &meta function, but it does not return a Moose::Meta::Role";
- }
- else {
- $meta = Moose::Meta::Role->initialize($role);
- $meta->Moose::Meta::Class::add_method('meta' => sub { $meta })
- }
+ }
+ else {
+ $meta = Moose::Meta::Role->initialize($role);
+ $meta->alias_method('meta' => sub { $meta });
+ }
return $METAS{$role} = $meta;
}
-
-
- my %exports = (
+
+
+ my %exports = (
extends => sub {
my $meta = _find_meta();
- return subname 'Moose::Role::extends' => sub {
+ return subname 'Moose::Role::extends' => sub {
confess "Moose::Role does not currently support 'extends'"
- };
- },
- with => sub {
- my $meta = _find_meta();
- return subname 'Moose::Role::with' => sub (@) {
+ };
+ },
+ with => sub {
+ my $meta = _find_meta();
+ return subname 'Moose::Role::with' => sub (@) {
my (@roles) = @_;
confess "Must specify at least one role" unless @roles;
- Moose::_load_all_classes(@roles);
+ Class::MOP::load_class($_) for @roles;
($_->can('meta') && $_->meta->isa('Moose::Meta::Role'))
|| confess "You can only consume roles, $_ is not a Moose role"
foreach @roles;
)->apply($meta);
}
};
- },
+ },
requires => sub {
my $meta = _find_meta();
- return subname 'Moose::Role::requires' => sub (@) {
+ return subname 'Moose::Role::requires' => sub (@) {
confess "Must specify at least one method" unless @_;
$meta->add_required_methods(@_);
- };
- },
+ };
+ },
excludes => sub {
my $meta = _find_meta();
- return subname 'Moose::Role::excludes' => sub (@) {
+ return subname 'Moose::Role::excludes' => sub (@) {
confess "Must specify at least one role" unless @_;
$meta->add_excluded_roles(@_);
- };
- },
+ };
+ },
has => sub {
my $meta = _find_meta();
- return subname 'Moose::Role::has' => sub ($;%) {
- my ($name, %options) = @_;
- $meta->add_attribute($name, %options)
- };
- },
+ return subname 'Moose::Role::has' => sub ($;%) {
+ my ($name, %options) = @_;
+ $meta->add_attribute($name, %options)
+ };
+ },
before => sub {
my $meta = _find_meta();
- return subname 'Moose::Role::before' => sub (@&) {
- confess "Moose::Role does not currently support 'before'";
- };
- },
+ return subname 'Moose::Role::before' => sub (@&) {
+ my $code = pop @_;
+ $meta->add_before_method_modifier($_, $code) for @_;
+ };
+ },
after => sub {
my $meta = _find_meta();
- return subname 'Moose::Role::after' => sub (@&) {
- confess "Moose::Role does not currently support 'after'";
- };
- },
+ return subname 'Moose::Role::after' => sub (@&) {
+ my $code = pop @_;
+ $meta->add_after_method_modifier($_, $code) for @_;
+ };
+ },
around => sub {
my $meta = _find_meta();
- return subname 'Moose::Role::around' => sub (@&) {
- confess "Moose::Role does not currently support 'around'";
- };
- },
- super => sub {
- my $meta = _find_meta();
- return subname 'Moose::Role::super' => sub {
- confess "Moose::Role cannot support 'super'";
+ return subname 'Moose::Role::around' => sub (@&) {
+ my $code = pop @_;
+ $meta->add_around_method_modifier($_, $code) for @_;
};
},
+ super => sub {
+ {
+ no strict 'refs';
+ $Moose::SUPER_SLOT{$CALLER} = \*{"${CALLER}::super"};
+ }
+ my $meta = _find_meta();
+ return subname 'Moose::Role::super' => sub {};
+ },
override => sub {
my $meta = _find_meta();
return subname 'Moose::Role::override' => sub ($&) {
- confess "Moose::Role cannot support 'override'";
- };
- },
+ my ($name, $code) = @_;
+ $meta->add_override_method_modifier($name, $code);
+ };
+ },
inner => sub {
my $meta = _find_meta();
return subname 'Moose::Role::inner' => sub {
- confess "Moose::Role cannot support 'inner'";
- };
- },
+ confess "Moose::Role cannot support 'inner'";
+ };
+ },
augment => sub {
my $meta = _find_meta();
return subname 'Moose::Role::augment' => sub {
confess "Moose::Role cannot support 'augment'";
- };
- },
+ };
+ },
confess => sub {
return \&Carp::confess;
},
blessed => sub {
return \&Scalar::Util::blessed;
- }
- );
+ }
+ );
- my $exporter = Sub::Exporter::build_exporter({
+ my $exporter = Sub::Exporter::build_exporter({
exports => \%exports,
groups => {
default => [':all']
}
});
-
+
sub import {
- $CALLER = caller();
-
+ $CALLER =
+ ref $_[1] && defined $_[1]->{into} ? $_[1]->{into}
+ : ref $_[1]
+ && defined $_[1]->{into_level} ? caller( $_[1]->{into_level} )
+ : caller();
+
+
strict->import;
- warnings->import;
+ warnings->import;
# we should never export to main
return if $CALLER eq 'main';
=head1 SYNOPSIS
package Eq;
- use strict;
- use warnings;
- use Moose::Role;
-
+ use Moose::Role; # automatically turns on strict and warnings
+
requires 'equal';
-
- sub no_equal {
+
+ sub no_equal {
my ($self, $other) = @_;
!$self->equal($other);
}
-
+
# ... then in your classes
-
+
package Currency;
- use strict;
- use warnings;
- use Moose;
-
+ use Moose; # automatically turns on strict and warnings
+
with 'Eq';
-
+
sub equal {
my ($self, $other) = @_;
$self->as_float == $other->as_float;
=head1 DESCRIPTION
-Role support in Moose is coming along quite well. It's best documentation
-is still the the test suite, but it is fairly safe to assume Perl 6 style
-behavior, and then either refer to the test suite, or ask questions on
-#moose if something doesn't quite do what you expect. More complete
-documentation is planned and will be included with the next official
-(non-developer) release.
+Role support in Moose is pretty solid at this point. However, the best
+documentation is still the the test suite. It is fairly safe to assume Perl 6
+style behavior and then either refer to the test suite, or ask questions on
+#moose if something doesn't quite do what you expect.
+
+We are planning writing some more documentation in the near future, but nothing
+is ready yet, sorry.
=head1 EXPORTED FUNCTIONS
-Currently Moose::Role supports all of the functions that L<Moose> exports,
-but differs slightly in how some items are handled (see L<CAVEATS> below
-for details).
+Moose::Role currently supports all of the functions that L<Moose> exports, but
+differs slightly in how some items are handled (see L<CAVEATS> below for
+details).
-Moose::Role also offers two role specific keyword exports:
+Moose::Role also offers two role-specific keyword exports:
=over 4
=item B<requires (@method_names)>
-Roles can require that certain methods are implemented by any class which
-C<does> the role.
+Roles can require that certain methods are implemented by any class which
+C<does> the role.
=item B<excludes (@role_names)>
Roles can C<exclude> other roles, in effect saying "I can never be combined
-with these C<@role_names>". This is a feature which should not be used
-lightly.
+with these C<@role_names>". This is a feature which should not be used
+lightly.
=back
=head1 CAVEATS
-The role support now has only a few caveats. They are as follows:
+Role support has only a few caveats:
=over 4
=item *
-Roles cannot use the C<extends> keyword, it will throw an exception for now.
-The same is true of the C<augment> and C<inner> keywords (not sure those
-really make sense for roles). All other Moose keywords will be I<deferred>
-so that they can be applied to the consuming class.
+Roles cannot use the C<extends> keyword; it will throw an exception for now.
+The same is true of the C<augment> and C<inner> keywords (not sure those
+really make sense for roles). All other Moose keywords will be I<deferred>
+so that they can be applied to the consuming class.
-=item *
+=item *
-Role composition does it's best to B<not> be order sensitive when it comes
-to conflict resolution and requirements detection. However, it is order
-sensitive when it comes to method modifiers. All before/around/after modifiers
-are included whenever a role is composed into a class, and then are applied
-in the order the roles are used. This too means that there is no conflict for
-before/around/after modifiers as well.
+Role composition does its best to B<not> be order-sensitive when it comes to
+conflict resolution and requirements detection. However, it is order-sensitive
+when it comes to method modifiers. All before/around/after modifiers are
+included whenever a role is composed into a class, and then applied in the order
+in which the roles are used. This also means that there is no conflict for
+before/around/after modifiers.
-In most cases, this will be a non issue, however it is something to keep in
-mind when using method modifiers in a role. You should never assume any
+In most cases, this will be a non-issue; however, it is something to keep in
+mind when using method modifiers in a role. You should never assume any
ordering.
=item *
-The C<requires> keyword currently only works with actual methods. A method
-modifier (before/around/after and override) will not count as a fufillment
+The C<requires> keyword currently only works with actual methods. A method
+modifier (before/around/after and override) will not count as a fufillment
of the requirement, and neither will an autogenerated accessor for an attribute.
-It is likely that the attribute accessors will eventually be allowed to fufill
-those requirements, either that or we will introduce a C<requires_attr> keyword
-of some kind instead. This descision has not yet been finalized.
+It is likely that attribute accessors will eventually be allowed to fufill those
+requirements, or we will introduce a C<requires_attr> keyword of some kind
+instead. This decision has not yet been finalized.
=back
=head1 BUGS
-All complex software has bugs lurking in it, and this module is no
+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 COPYRIGHT AND LICENSE
-Copyright 2006 by Infinity Interactive, Inc.
+Copyright 2006-2008 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.
+it under the same terms as Perl itself.
=cut
projects / gitmo/Moose.git / blobdiff