fix casts

Author: RonnyPfannschmidt

src/pluggy/_callers.py

@@ -28,6 +28,10 @@
         Tuple[Generator[None, Result[object], None], HookImpl],
     Generator[None, object, object],
 ]
+else:
+
+    def cast(t, v):
+        return v
 
 from ._hooks import HookImpl
 from ._result import HookCallError
@@ -94,7 +98,7 @@ def _multicall(
                         # If this cast is not valid, a type error is raised below,
                         # which is the desired response.
                         res = hook_impl.function(*args)
-                        wrapper_gen = cast(Generator[None, Result[object], None], res)
+                        wrapper_gen = cast("Generator[None, Result[object], None]", res)
                         next(wrapper_gen)  # first yield
                         teardowns.append((wrapper_gen, hook_impl))
                     except StopIteration:
@@ -104,7 +108,7 @@ def _multicall(
                         # If this cast is not valid, a type error is raised below,
                         # which is the desired response.
                         res = hook_impl.function(*args)
-                        function_gen = cast(Generator[None, object, object], res)
+                        function_gen = cast("Generator[None, object, object]", res)
                         next(function_gen)  # first yield
                         teardowns.append(function_gen)
                     except StopIteration:

src/pluggy/_hooks.py

@@ -31,7 +31,6 @@
 
     from ._result import Result
 
-
     _T = TypeVar("_T")
     _F = TypeVar("_F", bound=Callable[..., object])
     _Namespace = Union[ModuleType, type]
@@ -42,7 +41,6 @@
     _HookImplFunction = Callable[..., Union[_T, Generator[None, Result[_T], None]]]
     _CallHistory = List[Tuple[Mapping[str, object], Optional[Callable[[Any], None]]]]
 
-
     class HookspecOpts(TypedDict):
         """Options for a hook specification."""
 
@@ -58,7 +56,6 @@ class HookspecOpts(TypedDict):
         #: .. versionadded:: 1.5
         warn_on_impl_args: Mapping[str, Warning] | None
 
-
     class HookimplOpts(TypedDict):
         """Options for a hook implementation."""
 
@@ -80,11 +77,11 @@ class HookimplOpts(TypedDict):
         specname: str | None
 
 else:
+
     def final(func: _F) -> _F:
         return func
-    overload = final
-
 
+    overload = final
 
 
 @final
@@ -384,12 +381,12 @@ def __init__(self) -> None:
 
         def __getattr__(self, name: str) -> HookCaller: ...
 
+    _CallHistory = List[Tuple[Mapping[str, object], Optional[Callable[[Any], None]]]]
 
 # Historical name (pluggy<=1.2), kept for backward compatibility.
 _HookRelay = HookRelay
 
 
-_CallHistory = List[Tuple[Mapping[str, object], Optional[Callable[[Any], None]]]]
 
 
 class HookCaller:

src/pluggy/_result.py

@@ -3,6 +3,7 @@
 """
 
 from __future__ import annotations
+
 TYPE_CHECKING = False
 if TYPE_CHECKING:
     from types import TracebackType
@@ -16,16 +17,20 @@
     from typing import Type
     from typing import TypeVar
 
-
     _ExcInfo = Tuple[Type[BaseException], BaseException, Optional[TracebackType]]
     ResultType = TypeVar("ResultType")
 else:
     from ._hooks import final
 
+    def cast(v, t):
+        return t
+
     class Generic:
         """fake generic"""
-        def __class_getitem__(cls, key)-> type[object]:
+
+        def __class_getitem__(cls, key) -> type[object]:
             return object
+
     ResultType = "ResultType"
 
 
@@ -110,7 +115,7 @@ def get_result(self) -> ResultType:
         exc = self._exception
         tb = self._traceback
         if exc is None:
-            return cast(ResultType, self._result)
+            return cast("ResultType", self._result)
         else:
             raise exc.with_traceback(tb)