use warnings;
use metaclass;
-use Carp 'confess';
use Scalar::Util 'blessed';
-use Data::Dumper;
use Moose::Meta::Role::Composite;
-our $VERSION = '0.01';
+our $VERSION = '0.65';
+$VERSION = eval $VERSION;
our $AUTHORITY = 'cpan:STEVAN';
use base 'Moose::Meta::Role::Application';
+__PACKAGE__->meta->add_attribute('role_params' => (
+ reader => 'role_params',
+ default => sub { {} }
+));
+
+sub get_exclusions_for_role {
+ my ($self, $role) = @_;
+ $role = $role->name if blessed $role;
+ if ($self->role_params->{$role} && defined $self->role_params->{$role}->{excludes}) {
+ if (ref $self->role_params->{$role}->{excludes} eq 'ARRAY') {
+ return $self->role_params->{$role}->{excludes};
+ }
+ return [ $self->role_params->{$role}->{excludes} ];
+ }
+ return [];
+}
+
+sub get_method_aliases_for_role {
+ my ($self, $role) = @_;
+ $role = $role->name if blessed $role;
+ if ($self->role_params->{$role} && defined $self->role_params->{$role}->{alias}) {
+ return $self->role_params->{$role}->{alias};
+ }
+ return {};
+}
+
+sub is_method_excluded {
+ my ($self, $role, $method_name) = @_;
+ foreach ($self->get_exclusions_for_role($role->name)) {
+ return 1 if $_ eq $method_name;
+ }
+ return 0;
+}
+
+sub is_method_aliased {
+ my ($self, $role, $method_name) = @_;
+ exists $self->get_method_aliases_for_role($role->name)->{$method_name} ? 1 : 0
+}
+
+sub is_aliased_method {
+ my ($self, $role, $method_name) = @_;
+ my %aliased_names = reverse %{$self->get_method_aliases_for_role($role->name)};
+ exists $aliased_names{$method_name} ? 1 : 0;
+}
+
# stolen from List::MoreUtils ...
my $uniq = sub { my %h; map { $h{$_}++ == 0 ? $_ : () } @_ };
sub check_role_exclusions {
my ($self, $c) = @_;
- my @all_excluded_roles = $uniq->(map {
- $_->get_excluded_roles_list
- } @{$c->get_roles});
+ my %excluded_roles;
+ for my $role (@{ $c->get_roles }) {
+ my $name = $role->name;
+
+ for my $excluded ($role->get_excluded_roles_list) {
+ push @{ $excluded_roles{$excluded} }, $name;
+ }
+ }
foreach my $role (@{$c->get_roles}) {
- foreach my $excluded (@all_excluded_roles) {
- confess "Conflict detected: " . $role->name . " excludes role '" . $excluded . "'"
- if $role->does_role($excluded);
+ foreach my $excluded (keys %excluded_roles) {
+ next unless $role->does_role($excluded);
+
+ my @excluding = @{ $excluded_roles{$excluded} };
+ Moose->throw_error(sprintf "Conflict detected: Role%s %s exclude%s role '%s'", (@excluding == 1 ? '' : 's'), join(', ', @excluding), (@excluding == 1 ? 's' : ''), $excluded);
}
}
- $c->add_excluded_roles(@all_excluded_roles);
+ $c->add_excluded_roles(keys %excluded_roles);
}
sub check_required_methods {
foreach my $role (@{$c->get_roles}) {
foreach my $required (keys %all_required_methods) {
+
delete $all_required_methods{$required}
- if $role->has_method($required);
+ if $role->has_method($required)
+ || $self->is_aliased_method($role, $required);
}
}
$c->add_required_methods(keys %all_required_methods);
}
+sub check_required_attributes {
+
+}
+
sub apply_attributes {
my ($self, $c) = @_;
my %seen;
foreach my $attr (@all_attributes) {
if (exists $seen{$attr->{name}}) {
- confess "We have encountered an attribute conflict with '" . $attr->{name} . "'"
- . "during composition. This is fatal error and cannot be disambiguated."
+ Moose->throw_error("We have encountered an attribute conflict with '" . $attr->{name} . "' "
+ . "during composition. This is fatal error and cannot be disambiguated.")
if $seen{$attr->{name}} != $attr->{attr};
}
$seen{$attr->{name}} = $attr->{attr};
my ($self, $c) = @_;
my @all_methods = map {
- my $role = $_;
- map {
- +{
- name => $_,
- method => $role->get_method($_),
- }
- } $role->get_method_list;
+ my $role = $_;
+ my $aliases = $self->get_method_aliases_for_role($role);
+ my %excludes = map { $_ => undef } @{ $self->get_exclusions_for_role($role) };
+ (
+ (map {
+ exists $excludes{$_} ? () :
+ +{
+ role => $role,
+ name => $_,
+ method => $role->get_method($_),
+ }
+ } $role->get_method_list),
+ (map {
+ +{
+ role => $role,
+ name => $aliases->{$_},
+ method => $role->get_method($_),
+ }
+ } keys %$aliases)
+ );
} @{$c->get_roles};
my (%seen, %method_map);
delete $method_map{$method->{name}};
next;
}
- }
+ }
+
$seen{$method->{name}} = $method->{method};
$method_map{$method->{name}} = $method->{method};
}
- $c->alias_method($_ => $method_map{$_}) for keys %method_map;
+ $c->add_method($_ => $method_map{$_}) for keys %method_map;
}
sub apply_override_method_modifiers {
my %seen;
foreach my $override (@all_overrides) {
- confess "Role '" . $c->name . "' has encountered an 'override' method conflict " .
+ Moose->throw_error( "Role '" . $c->name . "' has encountered an 'override' method conflict " .
"during composition (A local method of the same name as been found). This " .
- "is fatal error."
+ "is fatal error." )
if $c->has_method($override->{name});
if (exists $seen{$override->{name}}) {
- confess "We have encountered an 'override' method conflict during " .
+ Moose->throw_error( "We have encountered an 'override' method conflict during " .
"composition (Two 'override' methods of the same name encountered). " .
- "This is fatal error."
+ "This is fatal error.")
if $seen{$override->{name}} != $override->{method};
}
$seen{$override->{name}} = $override->{method};
=head1 NAME
-Moose::Meta::Role::Application::RoleSummation
+Moose::Meta::Role::Application::RoleSummation - Combine two or more roles
=head1 DESCRIPTION
=item B<meta>
+=item B<role_params>
+
+=item B<get_exclusions_for_role>
+
+=item B<get_method_aliases_for_role>
+
+=item B<is_aliased_method>
+
+=item B<is_method_aliased>
+
+=item B<is_method_excluded>
+
=item B<apply>
+=item B<check_role_exclusions>
+
=item B<check_required_methods>
-=item B<check_role_exclusions>
+=item B<check_required_attributes>
=item B<apply_attributes>
=head1 COPYRIGHT AND LICENSE
-Copyright 2006, 2007 by Infinity Interactive, Inc.
+Copyright 2006-2008 by Infinity Interactive, Inc.
L<http://www.iinteractive.com>
projects / gitmo/Moose.git / blobdiff