more create_child_type fixes (Role, Enum)

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

diff --git a/lib/Moose/Meta/TypeConstraint/Role.pm b/lib/Moose/Meta/TypeConstraint/Role.pm
index 6325b3a..09cd625 100644 (file)
--- a/lib/Moose/Meta/TypeConstraint/Role.pm
+++ b/lib/Moose/Meta/TypeConstraint/Role.pm
@@ -7,7 +7,7 @@ use metaclass;
 use Scalar::Util 'blessed';
 use Moose::Util::TypeConstraints ();
 
-our $VERSION   = '0.55_04';
+our $VERSION   = '0.60';
 $VERSION = eval $VERSION;
 our $AUTHORITY = 'cpan:STEVAN';
 
@@ -59,6 +59,7 @@ sub equals {
 
     my $other = Moose::Util::TypeConstraints::find_type_constraint($type_or_name);
 
+    return unless defined $other;
     return unless $other->isa(__PACKAGE__);
 
     return $self->role eq $other->role;
@@ -82,6 +83,8 @@ sub is_subtype_of {
 
     my $type = Moose::Util::TypeConstraints::find_type_constraint($type_or_name_or_role);
 
+    return unless defined $type;
+    
     if ( $type->isa(__PACKAGE__) ) {
         # if $type_or_name_or_role isn't a role, it might be the TC name of another ::Role type
         # or it could also just be a type object in this branch
@@ -92,6 +95,11 @@ sub is_subtype_of {
     }
 }
 
+sub create_child_type {
+    my ($self, @args) = @_;
+    return Moose::meta::TypeConstraint->new(@args, parent => $self);
+}
+
 1;
 
 __END__
@@ -120,6 +128,8 @@ Moose::Meta::TypeConstraint::Role - Role/TypeConstraint parallel hierarchy
 
 =item B<is_subtype_of>
 
+=item B<create_child_type>
+
 =item B<parents>
 
 Return all the parent types, corresponding to the parent classes.