Function get_defining_class

cmd2/utils.py:707–729

Attempt to resolve the class that defined a method. Inspired by implementation published here: https://stackoverflow.com/a/25959545/1956611 :param meth: method to inspect :return: class type in which the supplied method was defined. None if it couldn't be resolved.

(meth: Callable[..., Any])

def get_defining_class(meth: Callable[..., Any]) -> type[Any] | None:
    """Attempt to resolve the class that defined a method.

    Inspired by implementation published here:
        https://stackoverflow.com/a/25959545/1956611

    :param meth: method to inspect
    :return: class type in which the supplied method was defined. None if it couldn't be resolved.
    """
    if isinstance(meth, functools.partial):
        return get_defining_class(meth.func)
    if inspect.ismethod(meth) or (
        inspect.isbuiltin(meth) and hasattr(meth, "__self__") and hasattr(meth.__self__, "__class__")
    ):
        for cls in inspect.getmro(meth.__self__.__class__):
            if meth.__name__ in cls.__dict__:
                return cls
        meth = getattr(meth, "__func__", meth)  # fallback to __qualname__ parsing
    if inspect.isfunction(meth):
        cls = getattr(inspect.getmodule(meth), meth.__qualname__.split(".<locals>", 1)[0].rsplit(".", 1)[0])
        if isinstance(cls, type):
            return cls
    return cast(type, getattr(meth, "__objclass__", None))  # handle special descriptor objects


class CustomCompletionSettings: