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Enables the narrowing of variable types when checking a variable is "in" a collection. #17344

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Merged
hauntsaninja merged 7 commits into from
Jul 24, 2024
+128 −8
Merged

Enables the narrowing of variable types when checking a variable is "in" a collection. #17344

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fd85e87
Enable narrowing types using the "in" operator
Jordandev678 Jun 7, 2024
3783f1d
Add test case from #3229
Jordandev678 Jun 7, 2024
dae707d
Add list to narrowing.pyi for testTypeNarrowingStringInList
Jordandev678 Jun 7, 2024
0c10969
[pre-commit.ci] auto fixes from pre-commit.com hooks
pre-commit-ci[bot] Jun 7, 2024
800741a
Don't update if_map if item_type == collection_item_type
Jordandev678 Jun 8, 2024
8c86ce1
Merge branch 'master' into innarrowing
Jordandev678 Jun 8, 2024
0bb5689
[pre-commit.ci] auto fixes from pre-commit.com hooks
pre-commit-ci[bot] Jun 8, 2024
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Add list to narrowing.pyi for testTypeNarrowingStringInList
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@Jordandev678
Jordandev678 committed Jun 7, 2024
commit dae707d92357c13fef85af49796d341cfbbaabc8
3 changes: 2 additions & 1 deletion test-data/unit/fixtures/narrowing.pyi
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Expand Up @@ -20,7 +20,8 @@ class dict(Generic[KT, VT]): pass

def isinstance(x: object, t: Union[Type[object], Tuple[Type[object], ...]]) -> bool: pass


class list(Sequence[Tco]):
def __contains__(self, other: object) -> bool: pass
class set(Iterable[Tco], Generic[Tco]):
def __init__(self, iterable: Iterable[Tco] = ...) -> None: ...
def __contains__(self, item: object) -> bool: pass