Source code for pcapkit.const.mh.cga_extension

# -*- coding: utf-8 -*-
# pylint: disable=line-too-long,consider-using-f-string
"""CGA Extension Type Values
===============================

.. module:: pcapkit.const.mh.cga_extension

This module contains the constant enumeration for **CGA Extension Type Values**,
which is automatically generated from :class:`pcapkit.vendor.mh.cga_extension.CGAExtension`.

"""

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__ = ['CGAExtension']




class CGAExtension(EnumRegistry, IntEnum):
    """[CGAExtension] CGA Extension Type Values"""

    #: Multi-Prefix [:rfc:`5535`]
    Multi_Prefix = 0x0012

    #: Exp_FFFD (experimental) [:rfc:`4581`]
    Exp_FFFD = 0xFFFD

    #: Exp_FFFE (experimental) [:rfc:`4581`]
    Exp_FFFE = 0xFFFE

    #: Exp_FFFF (experimental) [:rfc:`4581`]
    Exp_FFFF = 0xFFFF



    @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 <= 0xFFFF):
            raise EnumValueError('%r is not a valid %s' % (value, cls.__name__))




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

        Args:
            value: Value to get enum item.

        """
        if not (isinstance(value, int) and 0 <= value <= 0xFFFF):
            raise ValueError('%r is not a valid %s' % (value, cls.__name__))
        if 0x0000 <= value <= 0x0011:
            #: Unassigned
            return cls._unregistered_member(value, 'Unassigned')
        if 0x0013 <= value <= 0xFFFC:
            #: Unassigned
            return cls._unregistered_member(value, 'Unassigned')
        #: Unspecified in the IANA registry
        return cls._unregistered_member(value, 'Unassigned')