def selector()

in bowler/query.py [0:0]

• 21 lines of code
• 4 McCabe index (conditional complexity)

def selector(pattern: str) -> Callable[[QM], QM]:
    def wrapper(fn: QM) -> QM:
        selector = fn.__name__.replace("select_", "").lower()
        SELECTORS[selector] = pattern

        signature = inspect.signature(fn)
        arg_names = list(signature.parameters)[1:]

        @wraps(fn)
        def wrapped(self: Q, *args, **kwargs) -> Q:
            for arg, value in zip(arg_names, args):
                if hasattr(value, "__name__"):
                    kwargs["source"] = value
                    kwargs[arg] = value.__name__
                else:
                    kwargs[arg] = str(value)

            if "name" in kwargs:
                kwargs["dotted_name"] = " ".join(quoted_parts(kwargs["name"]))
                kwargs["power_name"] = " ".join(power_parts(kwargs["name"]))
            self.transforms.append(Transform(selector, kwargs))
            return self

        return wrapped

    return wrapper