feat: avoid enum dunder overhead in message_bus calls (#187)

src/dbus_fast/aio/message_bus.py

@@ -3,7 +3,6 @@ import asyncio
 import logging
 import socket
 import sys
-import traceback
 from collections import deque
 from copy import copy
 from typing import Any, Optional
@@ -14,7 +13,6 @@ else:
     from asyncio import timeout as asyncio_timeout
 
 from .. import introspection as intr
-from .._private.unmarshaller import Unmarshaller
 from ..auth import Authenticator, AuthExternal
 from ..constants import (
     BusType,
@@ -31,6 +29,8 @@ from ..service import ServiceInterface
 from .message_reader import build_message_reader
 from .proxy_object import ProxyObject
 
+NO_REPLY_EXPECTED_VALUE = MessageFlag.NO_REPLY_EXPECTED.value
+
 
 def _future_set_exception(fut: asyncio.Future, exc: Exception) -> None:
     if fut is not None and not fut.done():
@@ -351,7 +351,7 @@ class MessageBus(BaseMessageBus):
             - :class:`Exception` - If a connection error occurred.
         """
         if (
-            msg.flags & MessageFlag.NO_REPLY_EXPECTED
+            msg.flags.value & NO_REPLY_EXPECTED_VALUE
             or msg.message_type is not MessageType.METHOD_CALL
         ):
             await self.send(msg)

src/dbus_fast/aio/proxy_object.py

@@ -14,6 +14,8 @@ from ..unpack import unpack_variants as unpack
 if TYPE_CHECKING:
     from .message_bus import MessageBus as AioMessageBus
 
+NO_REPLY_EXPECTED_VALUE = MessageFlag.NO_REPLY_EXPECTED.value
+
 
 class ProxyInterface(BaseProxyInterface):
     """A class representing a proxy to an interface exported on the bus by
@@ -100,7 +102,7 @@ class ProxyInterface(BaseProxyInterface):
                 )
             )
 
-            if flags & MessageFlag.NO_REPLY_EXPECTED:
+            if flags is not None and flags.value & NO_REPLY_EXPECTED_VALUE:
                 return None
 
             BaseProxyInterface._check_method_return(msg, intr_method.out_signature)