from typing import Any, Union

from .valuetype import ValueType, none

ValueData = Union[None, int, float, bytes]


class Value:
    __slots__ = ('value_type', 'data', )

    value_type: ValueType
    data: ValueData

    def __init__(self, value_type: ValueType, data: ValueData) -> None:
        self.value_type = value_type
        self.data = data

    def __eq__(self, other: Any) -> bool:
        return self.value_type is other.value_type and self.data == other.data

    def __repr__(self) -> str:
        return f'Value({repr(self.value_type)}, {repr(self.data)})'


NoneValue = Value(none, None)