[PR #9809/c9c08748 backport][3.11] Add __slots__ to UrlMappingMatchInfo (#9813)

Author: patchback[bot]

aiohttp/abc.py

@@ -60,6 +60,9 @@ async def resolve(self, request: Request) -> "AbstractMatchInfo":
 
 
 class AbstractMatchInfo(ABC):
+
+    __slots__ = ()
+
     @property  # pragma: no branch
     @abstractmethod
     def handler(self) -> Callable[[Request], Awaitable[StreamResponse]]:

aiohttp/web_urldispatcher.py

@@ -249,7 +249,10 @@ async def handle_expect_header(self, request: Request) -> Optional[StreamRespons
 
 
 class UrlMappingMatchInfo(BaseDict, AbstractMatchInfo):
-    def __init__(self, match_dict: Dict[str, str], route: AbstractRoute):
+
+    __slots__ = ("_route", "_apps", "_current_app", "_frozen")
+
+    def __init__(self, match_dict: Dict[str, str], route: AbstractRoute) -> None:
         super().__init__(match_dict)
         self._route = route
         self._apps: List[Application] = []
@@ -311,6 +314,9 @@ def __repr__(self) -> str:
 
 
 class MatchInfoError(UrlMappingMatchInfo):
+
+    __slots__ = ("_exception",)
+
     def __init__(self, http_exception: HTTPException) -> None:
         self._exception = http_exception
         super().__init__({}, SystemRoute(self._exception))