Add pragma on unreachable code from different OSs (encode#2036)

* Add pragma on unreachable code from different OSs

* Update pyproject.toml

* Update pyproject.toml

pyproject.toml

@@ -98,7 +98,7 @@ omit = [
 
 [tool.coverage.report]
 precision = 2
-fail_under = 98.28
+fail_under = 98.35
 show_missing = true
 skip_covered = true
 exclude_lines = [
@@ -111,6 +111,7 @@ exclude_lines = [
 
 [tool.coverage.coverage_conditional_plugin.omit]
 "sys_platform == 'win32'" = ["uvicorn/loops/uvloop.py"]
+"sys_platform != 'win32'" = ["uvicorn/loops/asyncio.py"]
 
 [tool.coverage.coverage_conditional_plugin.rules]
 py-win32 = "sys_platform == 'win32'"
@@ -121,3 +122,5 @@ py-gte-38 = "sys_version_info >= (3, 8)"
 py-lt-38 =  "sys_version_info < (3, 8)"
 py-gte-39 = "sys_version_info >= (3, 9)"
 py-lt-39 = "sys_version_info < (3, 9)"
+py-gte-311 = "sys_version_info >= (3, 11)"
+py-lt-311 = "sys_version_info < (3, 11)"

uvicorn/_types.py

@@ -43,14 +43,14 @@
     Union,
 )
 
-if sys.version_info >= (3, 8):
+if sys.version_info >= (3, 8):  # pragma: py-lt-38
     from typing import Literal, Protocol, TypedDict
-else:
+else:  # pragma: py-gte-38
     from typing_extensions import Literal, Protocol, TypedDict
 
-if sys.version_info >= (3, 11):
+if sys.version_info >= (3, 11):  # pragma: py-lt-311
     from typing import NotRequired
-else:
+else:  # pragma: py-gte-311
     from typing_extensions import NotRequired
 
 # WSGI
@@ -261,12 +261,12 @@ class LifespanShutdownFailedEvent(TypedDict):
 
 class ASGI2Protocol(Protocol):
     def __init__(self, scope: Scope) -> None:
-        ...
+        ...  # pragma: no cover
 
     async def __call__(
         self, receive: ASGIReceiveCallable, send: ASGISendCallable
     ) -> None:
-        ...
+        ...  # pragma: no cover
 
 
 ASGI2Application = Type[ASGI2Protocol]

uvicorn/loops/asyncio.py

@@ -5,6 +5,6 @@
 logger = logging.getLogger("uvicorn.error")
 
 
-def asyncio_setup(use_subprocess: bool = False) -> None:  # pragma: no cover
+def asyncio_setup(use_subprocess: bool = False) -> None:
     if sys.platform == "win32" and use_subprocess:
         asyncio.set_event_loop_policy(asyncio.WindowsSelectorEventLoopPolicy())

uvicorn/server.py

@@ -120,12 +120,11 @@ def _share_socket(
                 sock_data = sock.share(os.getpid())  # type: ignore[attr-defined]
                 return fromshare(sock_data)
 
-            self.servers = []
+            self.servers: List[asyncio.base_events.Server] = []
             for sock in sockets:
-                if config.workers > 1 and platform.system() == "Windows":
-                    sock = _share_socket(  # type: ignore[assignment]
-                        sock
-                    )  # pragma py-linux pragma: py-darwin
+                is_windows = platform.system() == "Windows"
+                if config.workers > 1 and is_windows:  # pragma: py-not-win32
+                    sock = _share_socket(sock)  # type: ignore[assignment]
                 server = await loop.create_server(
                     create_protocol, sock=sock, ssl=config.ssl, backlog=config.backlog
                 )