core.py 文件源码

def __call__(self, *args, **params):
        methodname = self.__name__
        instance = self.obj
        # Fallback : if the instance has not been initialized, use the first
        # arg
        if instance is None:
            args = list(args)
            instance = args.pop(0)
        data = instance._data
        mask = instance._mask
        cls = type(instance)
        result = getattr(data, methodname)(*args, **params).view(cls)
        result._update_from(instance)
        if result.ndim:
            if not self._onmask:
                result.__setmask__(mask)
            elif mask is not nomask:
                result.__setmask__(getattr(mask, methodname)(*args, **params))
        else:
            if mask.ndim and (not mask.dtype.names and mask.all()):
                return masked
        return result