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WalkthroughThis change introduces explicit subtype and type identity checks for Python types in the VM, adding helper functions and methods for efficient MRO-based subtype checking. It also refactors class and subclass checking logic in Changes
Sequence Diagram(s)sequenceDiagram
participant Caller
participant PyObject
participant PyType
participant VM
Caller->>PyObject: real_is_instance(cls, vm)
PyObject->>PyObject: check_class(vm, msg)
alt cls is PyType
PyObject->>PyType: is_subtype(other)
PyType-->>PyObject: bool
else cls has __bases__ (tuple)
PyObject->>PyObject: abstract_get_bases(vm)
PyObject->>PyObject: abstract_issubclass(cls, vm)
end
PyObject-->>Caller: result
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Summary by CodeRabbit
New Features
Refactor