Version 1.05

[gitmo/Moose.git] / lib / Moose / Meta / Role.pm

diff --git a/lib/Moose/Meta/Role.pm b/lib/Moose/Meta/Role.pm
index 0139b98..a54b2f7 100644 (file)
--- a/lib/Moose/Meta/Role.pm
+++ b/lib/Moose/Meta/Role.pm
@@ -9,7 +9,7 @@ use Scalar::Util 'blessed';
 use Carp         'confess';
 use Devel::GlobalDestruction 'in_global_destruction';
 
-our $VERSION   = '0.93_03';
+our $VERSION   = '1.05';
 $VERSION = eval $VERSION;
 our $AUTHORITY = 'cpan:STEVAN';
 
@@ -20,7 +20,9 @@ use Moose::Meta::Role::Method::Required;
 use Moose::Meta::Role::Method::Conflicting;
 use Moose::Util qw( ensure_all_roles );
 
-use base 'Class::MOP::Module', 'Class::MOP::Mixin::HasAttributes';
+use base 'Class::MOP::Module',
+         'Class::MOP::Mixin::HasAttributes',
+         'Class::MOP::Mixin::HasMethods';
 
 ## ------------------------------------------------------------------
 ## NOTE:
@@ -197,6 +199,9 @@ sub add_attribute {
         my $class = ref $_[0];
         Moose->throw_error( "Cannot add a $class as an attribute to a role" );
     }
+    elsif (!blessed($_[0]) && defined($_[0]) && $_[0] =~ /^\+(.*)/) {
+        Moose->throw_error( "has '+attr' is not supported in roles" );
+    }
 
     return $self->SUPER::add_attribute(@_);
 }
@@ -371,9 +376,10 @@ sub calculate_all_roles {
 }
 
 sub does_role {
-    my ($self, $role_name) = @_;
-    (defined $role_name)
+    my ($self, $role) = @_;
+    (defined $role)
         || Moose->throw_error("You must supply a role name to look for");
+    my $role_name = blessed $role ? $role->name : $role;
     # if we are it,.. then return true
     return 1 if $role_name eq $self->name;
     # otherwise.. check our children
@@ -398,7 +404,7 @@ sub alias_method {
 ## ------------------------------------------------------------------
 
 sub apply {
-    my ($self, $other, @args) = @_;
+    my ($self, $other, %args) = @_;
 
     (blessed($other))
         || Moose->throw_error("You must pass in an blessed instance");
@@ -415,7 +421,7 @@ sub apply {
     }
 
     Class::MOP::load_class($application_class);
-    return $application_class->new(@args)->apply($self, $other);
+    return $application_class->new(%args)->apply($self, $other, \%args);
 }
 
 sub composition_class_roles { }
@@ -427,8 +433,11 @@ sub combine {
 
     my (@roles, %role_params);
     while (@role_specs) {
-        my ($role_name, $params) = @{ splice @role_specs, 0, 1 };
-        my $requested_role = Class::MOP::class_of($role_name);
+        my ($role, $params) = @{ splice @role_specs, 0, 1 };
+        my $requested_role
+            = blessed $role
+            ? $role
+            : Class::MOP::class_of($role);
 
         my $actual_role = $requested_role->_role_for_combination($params);
         push @roles => $actual_role;
@@ -497,6 +506,19 @@ sub create {
     return $meta;
 }
 
+sub consumers {
+    my $self = shift;
+    my @consumers;
+    for my $meta (Class::MOP::get_all_metaclass_instances) {
+        next if $meta->name eq $self->name;
+        next unless $meta->isa('Moose::Meta::Class')
+                 || $meta->isa('Moose::Meta::Role');
+        push @consumers, $meta->name
+            if $meta->does_role($self->name);
+    }
+    return @consumers;
+}
+
 # anonymous roles. most of it is copied straight out of Class::MOP::Class.
 # an intrepid hacker might find great riches if he unifies this code with that
 # code in Class::MOP::Module or Class::MOP::Package
@@ -702,7 +724,7 @@ This method creates a new role object with the provided name.
 =item B<< Moose::Meta::Role->combine( [ $role => { ... } ], [ $role ], ... ) >>
 
 This method accepts a list of array references. Each array reference
-should contain a role name as its first element. The second element is
+should contain a role name or L<Moose::Meta::Role> object as its first element. The second element is
 an optional hash reference. The hash reference can contain C<-excludes>
 and C<-alias> keys to control how methods are composed from the role.
 
@@ -731,6 +753,10 @@ C<create_anon_class> method.
 
 Returns true if the role is an anonymous role.
 
+=item B<< $metarole->consumers >>
+
+Returns a list of names of classes and roles which consume this role.
+
 =back
 
 =head2 Role application
@@ -766,10 +792,10 @@ list may include duplicates.
 This returns a I<unique> list of all roles that this role does, and
 all the roles that its roles do.
 
-=item B<< $metarole->does_role($role_name) >>
+=item B<< $metarole->does_role($role) >>
 
-Given a role I<name>, returns true if this role does the given
-role.
+Given a role I<name> or L<Moose::Meta::Role> object, returns true if this role
+does the given role.
 
 =item B<< $metarole->add_role($role) >>
 
@@ -875,7 +901,7 @@ object, then add it to the required method list.
 
 =head2 Method modifiers
 
-These methods act like their counterparts in L<Class::Mop::Class> and
+These methods act like their counterparts in L<Class::MOP::Class> and
 L<Moose::Meta::Class>.
 
 However, method modifiers are simply stored internally, and are not