use CppEnum and remove the protocol functions from subclasses

Author: evertlammerts

_duckdb-stubs/_func.pyi

@@ -1,44 +1,21 @@
-from typing import ClassVar, SupportsInt
+from typing import ClassVar
+from ._enums import CppEnum
 
 __all__: list[str] = ["ARROW", "DEFAULT", "NATIVE", "SPECIAL", "FunctionNullHandling", "PythonUDFType"]
 
-class FunctionNullHandling:
+class FunctionNullHandling(CppEnum):
     DEFAULT: ClassVar[FunctionNullHandling]  # value = <FunctionNullHandling.DEFAULT: 0>
     SPECIAL: ClassVar[FunctionNullHandling]  # value = <FunctionNullHandling.SPECIAL: 1>
     __members__: ClassVar[
         dict[str, FunctionNullHandling]
     ]  # value = {'DEFAULT': <FunctionNullHandling.DEFAULT: 0>, 'SPECIAL': <FunctionNullHandling.SPECIAL: 1>}
-    def __eq__(self, other: object) -> bool: ...
-    def __getstate__(self) -> int: ...
-    def __hash__(self) -> int: ...
-    def __index__(self) -> int: ...
-    def __init__(self, value: SupportsInt) -> None: ...
-    def __int__(self) -> int: ...
-    def __ne__(self, other: object) -> bool: ...
-    def __setstate__(self, state: SupportsInt) -> None: ...
-    @property
-    def name(self) -> str: ...
-    @property
-    def value(self) -> int: ...
 
 class PythonUDFType(CppEnum):
     ARROW: ClassVar[PythonUDFType]  # value = <PythonUDFType.ARROW: 1>
     NATIVE: ClassVar[PythonUDFType]  # value = <PythonUDFType.NATIVE: 0>
     __members__: ClassVar[
         dict[str, PythonUDFType]
     ]  # value = {'NATIVE': <PythonUDFType.NATIVE: 0>, 'ARROW': <PythonUDFType.ARROW: 1>}
-    def __eq__(self, other: object) -> bool: ...
-    def __getstate__(self) -> int: ...
-    def __hash__(self) -> int: ...
-    def __index__(self) -> int: ...
-    def __init__(self, value: SupportsInt) -> None: ...
-    def __int__(self) -> int: ...
-    def __ne__(self, other: object) -> bool: ...
-    def __setstate__(self, state: SupportsInt) -> None: ...
-    @property
-    def name(self) -> str: ...
-    @property
-    def value(self) -> int: ...
 
 ARROW: PythonUDFType  # value = <PythonUDFType.ARROW: 1>
 DEFAULT: FunctionNullHandling  # value = <FunctionNullHandling.DEFAULT: 0>