mirror of https://github.com/astral-sh/ruff
1f4f8d9950
## Summary Star-imports can not just affect the state of symbols that they pull in, they can also affect the state of members that are associated with those symbols. For example, if `obj.attr` was previously narrowed from `int | None` to `int`, and a star-import now overwrites `obj`, then the narrowing on `obj.attr` should be "reset". This PR keeps track of the state of associated members during star imports and properly models the flow of their corresponding state through the control flow structure that we artificially create for star-imports. See [this comment](https://github.com/astral-sh/ty/issues/1355#issuecomment-3607125005) for an explanation why this caused ty to see certain `asyncio` symbols as not being accessible on Python 3.14. closes https://github.com/astral-sh/ty/issues/1355 ## Ecosystem impact ```diff async-utils (https://github.com/mikeshardmind/async-utils) - src/async_utils/bg_loop.py:115:31: error[invalid-argument-type] Argument to bound method `set_task_factory` is incorrect: Expected `_TaskFactory | None`, found `def eager_task_factory[_T_co](loop: AbstractEventLoop | None, coro: Coroutine[Any, Any, _T_co@eager_task_factory], *, name: str | None = None, context: Context | None = None) -> Task[_T_co@eager_task_factory]` - Found 30 diagnostics + Found 29 diagnostics mitmproxy (https://github.com/mitmproxy/mitmproxy) + mitmproxy/utils/asyncio_utils.py:96:60: warning[unused-ignore-comment] Unused blanket `type: ignore` directive - test/conftest.py:37:31: error[invalid-argument-type] Argument to bound method `set_task_factory` is incorrect: Expected `_TaskFactory | None`, found `def eager_task_factory[_T_co](loop: AbstractEventLoop | None, coro: Coroutine[Any, Any, _T_co@eager_task_factory], *, name: str | None = None, context: Context | None = None) -> Task[_T_co@eager_task_factory]` ``` All of these seem to be correct, they give us a different type for `asyncio` symbols that are now imported from different `sys.version_info` branches (where we previously failed to recognize some of these as statically true/false). ```diff dd-trace-py (https://github.com/DataDog/dd-trace-py) - ddtrace/contrib/internal/asyncio/patch.py:39:12: error[invalid-argument-type] Argument to function `unwrap` is incorrect: Expected `WrappedFunction`, found `def create_task[_T](self, coro: Coroutine[Any, Any, _T@create_task] | Generator[Any, None, _T@create_task], *, name: object = None) -> Task[_T@create_task]` + ddtrace/contrib/internal/asyncio/patch.py:39:12: error[invalid-argument-type] Argument to function `unwrap` is incorrect: Expected `WrappedFunction`, found `def create_task[_T](self, coro: Generator[Any, None, _T@create_task] | Coroutine[Any, Any, _T@create_task], *, name: object = None) -> Task[_T@create_task]` ``` Similar, but only results in a diagnostic change. ## Test Plan Added a regression test |
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| mdtest.py | ||
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