Author: allison Date: Tue May 8 20:51:55 2007 New Revision: 18475 Modified: trunk/docs/pdds/pdd15_objects.pod
Log: [pdd]: Adding a description of :vtable and :method to Objects PDD. Thanks to Will Coleda for the suggestion. Modified: trunk/docs/pdds/pdd15_objects.pod ============================================================================== --- trunk/docs/pdds/pdd15_objects.pod (original) +++ trunk/docs/pdds/pdd15_objects.pod Tue May 8 20:51:55 2007 @@ -1021,7 +1021,38 @@ =back -=head2 Vtable Overloading +=head2 PIR Class Definitions + +PIR provides some syntactic sugar for declaring classes. + +=over 4 + +=item :method + + .sub custom_method :method + # ... + .end + +Flags the code entity as a method. + +=item :vtable + + .sub get_integer :vtable + # ... + .end + +Flags the code entity as a vtable override. + +=back + +:method and :vtable can be combined to indicate that a particular code entity +is callable both as a method and as a vtable override. + +If the class object has not yet been created at the point when the PIR subs are +compiled, the methods and vtable overrides are temporarily stored in the +associated namespace. + +=head2 Vtable Overriding Classes may override the vtable functions, allowing objects of a class to behave like a primitive PMC. To use these properly at a low-level
