Class UVarIntField

scapy/contrib/http2.py:486–552

class UVarIntField(AbstractUVarIntField):
    def __init__(self, name, default, size):
        # type: (str, int, int) -> None
        """
        :param str name: the name of this field instance.
        :param default: the default value for this field instance. default must be positive or null.  # noqa: E501
        :raises: AssertionError
        """
        assert default >= 0
        assert 0 < size <= 8

        super(UVarIntField, self).__init__(name, default, size)
        self.size = size
        self._max_value = (1 << self.size) - 1

        # Configuring the fake property that is useless for this class but that is  # noqa: E501
        # expected from BitFields
        self.rev = False

    def h2i(self, pkt, x):
        # type: (Optional[packet.Packet], int) -> int
        """ h2i is overloaded to restrict the acceptable x values (not None)

        :param packet.Packet|None pkt: the packet instance containing this field instance; probably unused.  # noqa: E501
        :param int x: the value to convert.
        :return: int: the converted value.
        :raises: AssertionError
        """
        ret = super(UVarIntField, self).h2i(pkt, x)
        assert not isinstance(ret, type(None)) and ret >= 0
        return ret

    def i2h(self, pkt, x):
        # type: (Optional[packet.Packet], int) -> int
        """ i2h is overloaded to restrict the acceptable x values (not None)

        :param packet.Packet|None pkt: the packet instance containing this field instance; probably unused.  # noqa: E501
        :param int x: the value to convert.
        :return: int: the converted value.
        :raises: AssertionError
        """
        ret = super(UVarIntField, self).i2h(pkt, x)
        assert not isinstance(ret, type(None)) and ret >= 0
        return ret

    def any2i(self, pkt, x):
        # type: (Optional[packet.Packet], Union[str, int]) -> int
        """ any2i is overloaded to restrict the acceptable x values (not None)

        :param packet.Packet|None pkt: the packet instance containing this field instance; probably unused.  # noqa: E501
        :param str|int x: the value to convert.
        :return: int: the converted value.
        :raises: AssertionError
        """
        ret = super(UVarIntField, self).any2i(pkt, x)
        assert not isinstance(ret, type(None)) and ret >= 0
        return ret