src/mdis/walker.py

   1 from . import core as _core
   2 from . import dispatcher as _dispatcher
   3
   4
   5 class WalkerMeta(_dispatcher.DispatcherMeta):
   6     pass
   7
   8
   9 class Walker(_dispatcher.Dispatcher, metaclass=WalkerMeta):
  10     @_core.hook(tuple, list, set, frozenset)
  11     def dispatch_sequence(self, instance):
  12         for item in instance:
  13             yield item
  14             yield from self(item)
  15
  16     @_core.hook(dict)
  17     def dispatch_mapping(self, instance):
  18         for (key, value) in instance.items():
  19             yield (key, value)
  20             yield from self((key, value))
  21
  22     @_core.hook(object)
  23     def dispatch_object(self, instance):
  24         yield from ()