Inheitance of non-Mouse classes now produces wranings

[gitmo/Mouse.git] / lib / Mouse / Meta / Class.pm

diff --git a/lib/Mouse/Meta/Class.pm b/lib/Mouse/Meta/Class.pm
index 2b535db..187ba00 100644 (file)
--- a/lib/Mouse/Meta/Class.pm
+++ b/lib/Mouse/Meta/Class.pm
@@ -56,16 +56,25 @@ sub superclasses {
     if (@_) {
         foreach my $super(@_){
             Mouse::Util::load_class($super);
-            my $meta = Mouse::Util::get_metaclass_by_name($super);
 
-            next if not defined $meta;
+            my $meta = Mouse::Util::get_metaclass_by_name($super);
+            unless(defined $meta) {
+                # checks if $super is a foreign class (i.e. non-Mouse class)
+                my $mm = $super->can('meta');
+                if(!($mm && $mm == \&Mouse::Util::meta)) {
+                    if($super->can('new') or $super->can('DESTROY')) {
+                        $self->inherit_from_foreign_class($super);
+                    }
+                }
+                next;
+            }
 
             if(Mouse::Util::is_a_metarole($meta)){
                 $self->throw_error("You cannot inherit from a Mouse Role ($super)");
             }
 
+            # checks and fixes in metaclass compatiility
             next if $self->isa(ref $meta); # _superclass_meta_is_compatible
-
             $self->_reconcile_with_superclass_meta($meta);
         }
         @{ $self->{superclasses} } = @_;
@@ -73,6 +82,15 @@ sub superclasses {
 
     return @{ $self->{superclasses} };
 }
+
+sub inherit_from_foreign_class {
+    my($class, $super) = @_;
+    Carp::carp("You inherit from non-Mouse class ($super),"
+        . " but it is unlikely to work correctly."
+        . " Please concider to use MouseX::Foreign");
+    return;
+}
+
 my @MetaClassTypes = (
     'attribute',   # Mouse::Meta::Attribute
     'method',      # Mouse::Meta::Method