In the Objects chapter, a WALK pseudo-class is spec'ed for using when calling sets of methods:
http://feather.perl6.nl/syn/S12.html#Calling_sets_of_methods These are the arguments listed that can be used with WALK: :canonical # canonical dispatch order :ascendant # most-derived first, like destruction order :descendant # least-derived first, like construction order :preorder # like Perl 5 dispatch :breadth # like multi dispatch First, it would be nice if the comments "like Perl 5" and "like multi dispatch" could be expanded, if only to provide references to their complete specs. Also, if "canonical" means something besides "I don't care", it would be nice to have a reference for that, too. My concern for the moment is clarification how these options can be combined. Clearly, combining ":ascendant" and ":descendant" doesn't make sense. But, I assume a "self.*meth" call can work along both the inheritance axis and the multi method access. Therefore, it seems fair to combine one option that affects each axis. As a "use case", in CGI::Application we traverse classes ":ascendant" but then execute what would be "multi methods" in the order they are defined, which sounds like perhaps ":preorder" to me. Mark
