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Use TypeAlias where possible for type aliases (#7630)

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This commit is contained in:
Alex Waygood
2022-04-16 02:01:00 +01:00
committed by GitHub
parent c0e6dd3f3f
commit 740193a8fc
218 changed files with 760 additions and 625 deletions
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9
stdlib/ctypes/__init__.pyi
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@@ -2,6 +2,7 @@ import sys
from _typeshed import ReadableBuffer, Self, WriteableBuffer
from abc import abstractmethod
from typing import Any, Callable, ClassVar, Generic, Iterable, Iterator, Mapping, Sequence, TypeVar, Union as _UnionT, overload
from typing_extensions import TypeAlias
if sys.version_info >= (3, 9):
from types import GenericAlias
@@ -84,8 +85,8 @@ class _CData(metaclass=_CDataMeta):
class _CanCastTo(_CData): ...
class _PointerLike(_CanCastTo): ...
_ECT = Callable[[type[_CData] | None, _FuncPointer, tuple[_CData, ...]], _CData]
_PF = _UnionT[tuple[int], tuple[int, str], tuple[int, str, Any]]
_ECT: TypeAlias = Callable[[type[_CData] | None, _FuncPointer, tuple[_CData, ...]], _CData]
_PF: TypeAlias = _UnionT[tuple[int], tuple[int, str], tuple[int, str, Any]]
class _FuncPointer(_PointerLike, _CData):
restype: type[_CData] | Callable[[int], Any] | None
@@ -121,12 +122,12 @@ class _CArgObject: ...
# Any type that can be implicitly converted to c_void_p when passed as a C function argument.
# (bytes is not included here, see below.)
_CVoidPLike = _PointerLike | Array[Any] | _CArgObject | int
_CVoidPLike: TypeAlias = _PointerLike | Array[Any] | _CArgObject | int
# Same as above, but including types known to be read-only (i. e. bytes).
# This distinction is not strictly necessary (ctypes doesn't differentiate between const
# and non-const pointers), but it catches errors like memmove(b'foo', buf, 4)
# when memmove(buf, b'foo', 4) was intended.
_CVoidConstPLike = _CVoidPLike | bytes
_CVoidConstPLike: TypeAlias = _CVoidPLike | bytes
def addressof(obj: _CData) -> int: ...
def alignment(obj_or_type: _CData | type[_CData]) -> int: ...

101
stdlib/ctypes/wintypes.pyi
View File

@@ -20,6 +20,7 @@ from ctypes import (
c_wchar_p,
pointer,
)
from typing_extensions import TypeAlias
BYTE = c_byte
WORD = c_ushort
@@ -182,53 +183,53 @@ class WIN32_FIND_DATAW(Structure):
# These pointer type definitions use pointer[...] instead of POINTER(...), to allow them
# to be used in type annotations.
PBOOL = pointer[BOOL]
LPBOOL = pointer[BOOL]
PBOOLEAN = pointer[BOOLEAN]
PBYTE = pointer[BYTE]
LPBYTE = pointer[BYTE]
PCHAR = pointer[CHAR]
LPCOLORREF = pointer[COLORREF]
PDWORD = pointer[DWORD]
LPDWORD = pointer[DWORD]
PFILETIME = pointer[FILETIME]
LPFILETIME = pointer[FILETIME]
PFLOAT = pointer[FLOAT]
PHANDLE = pointer[HANDLE]
LPHANDLE = pointer[HANDLE]
PHKEY = pointer[HKEY]
LPHKL = pointer[HKL]
PINT = pointer[INT]
LPINT = pointer[INT]
PLARGE_INTEGER = pointer[LARGE_INTEGER]
PLCID = pointer[LCID]
PLONG = pointer[LONG]
LPLONG = pointer[LONG]
PMSG = pointer[MSG]
LPMSG = pointer[MSG]
PPOINT = pointer[POINT]
LPPOINT = pointer[POINT]
PPOINTL = pointer[POINTL]
PRECT = pointer[RECT]
LPRECT = pointer[RECT]
PRECTL = pointer[RECTL]
LPRECTL = pointer[RECTL]
LPSC_HANDLE = pointer[SC_HANDLE]
PSHORT = pointer[SHORT]
PSIZE = pointer[SIZE]
LPSIZE = pointer[SIZE]
PSIZEL = pointer[SIZEL]
LPSIZEL = pointer[SIZEL]
PSMALL_RECT = pointer[SMALL_RECT]
PUINT = pointer[UINT]
LPUINT = pointer[UINT]
PULARGE_INTEGER = pointer[ULARGE_INTEGER]
PULONG = pointer[ULONG]
PUSHORT = pointer[USHORT]
PWCHAR = pointer[WCHAR]
PWIN32_FIND_DATAA = pointer[WIN32_FIND_DATAA]
LPWIN32_FIND_DATAA = pointer[WIN32_FIND_DATAA]
PWIN32_FIND_DATAW = pointer[WIN32_FIND_DATAW]
LPWIN32_FIND_DATAW = pointer[WIN32_FIND_DATAW]
PWORD = pointer[WORD]
LPWORD = pointer[WORD]
PBOOL: TypeAlias = pointer[BOOL]
LPBOOL: TypeAlias = pointer[BOOL]
PBOOLEAN: TypeAlias = pointer[BOOLEAN]
PBYTE: TypeAlias = pointer[BYTE]
LPBYTE: TypeAlias = pointer[BYTE]
PCHAR: TypeAlias = pointer[CHAR]
LPCOLORREF: TypeAlias = pointer[COLORREF]
PDWORD: TypeAlias = pointer[DWORD]
LPDWORD: TypeAlias = pointer[DWORD]
PFILETIME: TypeAlias = pointer[FILETIME]
LPFILETIME: TypeAlias = pointer[FILETIME]
PFLOAT: TypeAlias = pointer[FLOAT]
PHANDLE: TypeAlias = pointer[HANDLE]
LPHANDLE: TypeAlias = pointer[HANDLE]
PHKEY: TypeAlias = pointer[HKEY]
LPHKL: TypeAlias = pointer[HKL]
PINT: TypeAlias = pointer[INT]
LPINT: TypeAlias = pointer[INT]
PLARGE_INTEGER: TypeAlias = pointer[LARGE_INTEGER]
PLCID: TypeAlias = pointer[LCID]
PLONG: TypeAlias = pointer[LONG]
LPLONG: TypeAlias = pointer[LONG]
PMSG: TypeAlias = pointer[MSG]
LPMSG: TypeAlias = pointer[MSG]
PPOINT: TypeAlias = pointer[POINT]
LPPOINT: TypeAlias = pointer[POINT]
PPOINTL: TypeAlias = pointer[POINTL]
PRECT: TypeAlias = pointer[RECT]
LPRECT: TypeAlias = pointer[RECT]
PRECTL: TypeAlias = pointer[RECTL]
LPRECTL: TypeAlias = pointer[RECTL]
LPSC_HANDLE: TypeAlias = pointer[SC_HANDLE]
PSHORT: TypeAlias = pointer[SHORT]
PSIZE: TypeAlias = pointer[SIZE]
LPSIZE: TypeAlias = pointer[SIZE]
PSIZEL: TypeAlias = pointer[SIZEL]
LPSIZEL: TypeAlias = pointer[SIZEL]
PSMALL_RECT: TypeAlias = pointer[SMALL_RECT]
PUINT: TypeAlias = pointer[UINT]
LPUINT: TypeAlias = pointer[UINT]
PULARGE_INTEGER: TypeAlias = pointer[ULARGE_INTEGER]
PULONG: TypeAlias = pointer[ULONG]
PUSHORT: TypeAlias = pointer[USHORT]
PWCHAR: TypeAlias = pointer[WCHAR]
PWIN32_FIND_DATAA: TypeAlias = pointer[WIN32_FIND_DATAA]
LPWIN32_FIND_DATAA: TypeAlias = pointer[WIN32_FIND_DATAA]
PWIN32_FIND_DATAW: TypeAlias = pointer[WIN32_FIND_DATAW]
LPWIN32_FIND_DATAW: TypeAlias = pointer[WIN32_FIND_DATAW]
PWORD: TypeAlias = pointer[WORD]
LPWORD: TypeAlias = pointer[WORD]