Override __subclasscheck__ on ModelMetaclass to avoid memory leak and performance issues#11116
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sydney-runkle merged 1 commit intomainfrom Dec 16, 2024
Merged
Override __subclasscheck__ on ModelMetaclass to avoid memory leak and performance issues#11116sydney-runkle merged 1 commit intomainfrom
__subclasscheck__ on ModelMetaclass to avoid memory leak and performance issues#11116sydney-runkle merged 1 commit intomainfrom
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… and performance issues We avoid relying on `ABCMeta.__subclasscheck__` unless we're pretty sure. Note that this was wrongly addressed as `__instancecheck__` was implemented instead of `__subclasscheck__`. However, it is not clear if implementing `__instancecheck__` fixed existing issues as well, so it is left as is. Also changed the checked attribute to `__pydantic_decorators__`, as this is one of the first attributes being set on the class, and it might be that we change the way `__pydantic_validator__` is set in the future (e.g. when `defer_build` is set, and if we don't implement mock validators anymore).
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We avoid relying on
ABCMeta.__subclasscheck__unless we're pretty sure. Note that this was wrongly addressed as__instancecheck__was implemented instead of__subclasscheck__. However, it is not clear if implementing__instancecheck__fixed existing issues as well, so it is left as is.Also changed the checked attribute to
__pydantic_decorators__, as this is one of the first attributes being set on the class, and it might be that we change the way__pydantic_validator__is set in the future (e.g. whendefer_buildis set, and if we don't implement mock validators anymore).Fixes #11100.
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