make re-applying a role to an object instance a no-op. Previously, we ended up making...

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

diff --git a/lib/Moose/Meta/Role/Application/ToInstance.pm b/lib/Moose/Meta/Role/Application/ToInstance.pm
index 411708d..7e5b4d6 100644 (file)
--- a/lib/Moose/Meta/Role/Application/ToInstance.pm
+++ b/lib/Moose/Meta/Role/Application/ToInstance.pm
@@ -22,6 +22,11 @@ my %ANON_CLASSES;
 sub apply {
     my ($self, $role, $object) = @_;
 
+    return
+        if $object->can('meta')
+            && $object->meta->can('does_role')
+            && $object->meta->does_role( $role->name );
+
     my $anon_role_key = (blessed($object) . $role->name);
 
     my $class;