Commits on Jun 3, 2024

1. Fix inheritance resolution of cached properties in slotted class …

   This resolves the case where a sub-class of a slotted class defining
   some cached properties has a custom __getattr__() method. In that case,
   we need to build the custom __getattr__ implementation (see
   in _make_cached_property_getattr()) using cached properties from all
   classes in the MRO. In order to keep references of cached properties
   defined the inheritance hierarchy, we store them in a new
   __attrs_cached_properties__ attribute and finally build the
   "cached_properties" value, passed to _make_cached_property_getattr(),
   by combining current class' cached properties with that of all its
   parents. Also, when building __attrs_cached_properties__, we now clear
   current class' __dict__ (name 'cd'), thus saving an extra loop.
   
   See python-attrs#1288

   

   dlax committed Jun 3, 2024
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