Source code for pcapkit.const.mh.flow_id_suboption

# -*- coding: utf-8 -*-
# pylint: disable=line-too-long,consider-using-f-string
"""Flow Identification Sub-Options
=====================================

.. module:: pcapkit.const.mh.flow_id_suboption

This module contains the constant enumeration for **Flow Identification Sub-Options**,
which is automatically generated from :class:`pcapkit.vendor.mh.flow_id_suboption.FlowIDSuboption`.

"""

from typing import TYPE_CHECKING

from aenum import IntEnum

from pcapkit.corekit.enum import EnumRegistry
from pcapkit.utilities.exceptions import EnumValueError

if TYPE_CHECKING:
    from typing import Any

__all__ = ['FlowIDSuboption']




class FlowIDSuboption(EnumRegistry, IntEnum):
    """[FlowIDSuboption] Flow Identification Sub-Options"""

    #: Pad [:rfc:`6089`]
    Pad = 0

    #: PadN [:rfc:`6089`]
    PadN = 1

    #: BID Reference [:rfc:`6089`]
    BID_Reference = 2

    #: Traffic Selector [:rfc:`6089`]
    Traffic_Selector = 3

    #: Flow Binding Action [:rfc:`7109`]
    Flow_Binding_Action = 4

    #: Target Care-of Address [:rfc:`7109`]
    Target_Care_of_Address = 5



    @classmethod
    def _validate_value(cls, value: 'Any') -> 'None':
        """Reject ``value`` unless it passes the range check :meth:`_missing_` makes.

        Overrides :meth:`~pcapkit.corekit.enum.EnumLookup._validate_value`
        with that check and the message it raises, so
        :meth:`~pcapkit.corekit.enum.EnumRegistry.register` refuses exactly the
        values :meth:`~pcapkit.corekit.enum.EnumLookup.get` refuses, in the
        same words (:issue:`1816`).

        Args:
            value: Value about to be looked up or minted.

        Raises:
            EnumValueError: If ``value`` fails that check. A
                :exc:`ValueError`, so an ``except ValueError`` caller is
                unaffected.

        """
        if not (isinstance(value, int) and 0 <= value <= 255):
            raise EnumValueError('%r is not a valid %s' % (value, cls.__name__))




    @classmethod
    def _missing_(cls, value: 'int') -> 'FlowIDSuboption':
        """Lookup function used when value is not found.

        Args:
            value: Value to get enum item.

        """
        if not (isinstance(value, int) and 0 <= value <= 255):
            raise ValueError('%r is not a valid %s' % (value, cls.__name__))
        if 6 <= value <= 250:
            #: Unassigned
            return cls._unregistered_member(value, 'Unassigned')
        if 251 <= value <= 255:
            #: Reserved for Experimental Use [:rfc:`6089`]
            return cls._unregistered_member(value, 'Reserved_for_Experimental_Use')
        return super()._missing_(value)