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Rewrite operator Library with More Specific Annotations #15059

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Rewrite operator Library with More Specific Annotations #15059

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0cd9817
Write small sample of specific operators for proof of concept
George-Ogden Nov 20, 2025
c353b4b
Remove fallback Any overload
George-Ogden Nov 20, 2025
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39 changes: 36 additions & 3 deletions stdlib/_operator.pyi
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Original file line number Diff line number Diff line change
Expand Up @@ -7,6 +7,9 @@ from typing_extensions import ParamSpec, TypeAlias, TypeIs

_R = TypeVar("_R")
_T = TypeVar("_T")
_T_contra = TypeVar("_T_contra", contravariant=True)
_U = TypeVar("_U")
_U_co = TypeVar("_U_co", covariant=True)
_T_co = TypeVar("_T_co", covariant=True)
_K = TypeVar("_K")
_V = TypeVar("_V")
Expand Down Expand Up @@ -58,15 +61,45 @@ def truth(a: object, /) -> bool: ...
def is_(a: object, b: object, /) -> bool: ...
def is_not(a: object, b: object, /) -> bool: ...
def abs(a: SupportsAbs[_T], /) -> _T: ...
def add(a: Any, b: Any, /) -> Any: ...
def and_(a: Any, b: Any, /) -> Any: ...

class _SupportsAdd(Protocol[_T_contra, _U_co]):
def __add__(self, other: _T_contra, /) -> _U_co: ...

class _SupportsRAdd(Protocol[_T_contra, _U_co]):
def __radd__(self, other: _T_contra, /) -> _U_co: ...

@overload
def add(a: _SupportsAdd[_T, _U], b: _T, /) -> _U: ...
@overload
def add(a: _T, b: _SupportsRAdd[_T, _U], /) -> _U: ...

class _SupportsAnd(Protocol[_T_contra, _U_co]):
def __and__(self, other: _T_contra, /) -> _U_co: ...

class _SupportsRAnd(Protocol[_T_contra, _U_co]):
def __rand__(self, other: _T_contra, /) -> _U_co: ...

@overload
def and_(a: _SupportsAnd[_T, _U], b: _T, /) -> _U: ...
@overload
def and_(a: _T, b: _SupportsRAnd[_T, _U], /) -> _U: ...
def floordiv(a: Any, b: Any, /) -> Any: ...
def index(a: SupportsIndex, /) -> int: ...
def inv(a: _SupportsInversion[_T_co], /) -> _T_co: ...
def invert(a: _SupportsInversion[_T_co], /) -> _T_co: ...
def lshift(a: Any, b: Any, /) -> Any: ...
def mod(a: Any, b: Any, /) -> Any: ...
def mul(a: Any, b: Any, /) -> Any: ...

class _SupportsMul(Protocol[_T_contra, _U_co]):
def __mul__(self, other: _T_contra, /) -> _U_co: ...

class _SupportsRMul(Protocol[_T_contra, _U_co]):
def __rmul__(self, other: _T_contra, /) -> _U_co: ...

@overload
def mul(a: _SupportsMul[_T, _U], b: _T, /) -> _U: ...
@overload
def mul(a: _T, b: _SupportsRMul[_T, _U], /) -> _U: ...
def matmul(a: Any, b: Any, /) -> Any: ...
def neg(a: _SupportsNeg[_T_co], /) -> _T_co: ...
def or_(a: Any, b: Any, /) -> Any: ...
Expand Down