mirror of
https://github.com/RustPython/RustPython.git
synced 2026-10-29 03:04:38 +08:00
이광효
dd32207408
* vm: use non-raising lookup for default attribute access get_attribute_opt() backs hasattr() and getattr() with a default. It used get_attr_inner() for every object, then converted AttributeError from a missing attribute into None. The usual user-object miss therefore built and dropped an exception just to answer an optional lookup. Route objects using PyBaseObject::getattro through generic_getattr_opt(), which returns the missing case without constructing AttributeError. Objects with a custom getattro slot keep the raising path: their __getattribute__ and __getattr__ hooks can run Python code, so their exceptions must preserve the existing behavior. AttributeError from either route, including a descriptor, is still converted to None; non-AttributeError exceptions propagate. The new snippet covers ordinary hits and misses, custom __getattribute__ / __getattr__, descriptor exceptions, and dynamic getattro-slot updates. Refs youknowone#48 Assisted-by: Codex:GPT-5.6-terra * vm: use non-raising lookup for optional attributes