12 commits

Author	SHA1	Message	Date
Renkai Ge	bf38e69870	[ty] Rename "possibly unbound" diagnostics to "possibly missing" (#20492) ... Co-authored-by: Alex Waygood <alex.waygood@gmail.com>	2025-09-23 14:26:55 +00:00
Alex Waygood	33b3d44ebd	[ty] Proper assignability/subtyping checks for protocols with method members (#20165)	2025-09-12 10:10:31 +00:00
Alex Waygood	0e3697a643	[ty] Minor fixes to Protocol tests (#20347)	2025-09-11 14:42:13 +00:00
David Peter	4ecf1d205a	[ty] Support async/await, async with and yield from (#19595) ... ## Summary - Add support for the return types of `async` functions - Add type inference for `await` expressions - Add support for `async with` / async context managers - Add support for `yield from` expressions This PR is generally lacking proper error handling in some cases (e.g. illegal `__await__` attributes). I'm planning to work on this in a follow-up. part of https://github.com/astral-sh/ty/issues/151 closes https://github.com/astral-sh/ty/issues/736 ## Ecosystem There are a lot of true positives on `prefect` which look similar to: ```diff prefect (https://github.com/PrefectHQ/prefect) + src/integrations/prefect-aws/tests/workers/test_ecs_worker.py:406:12: error[unresolved-attribute] Type `str` has no attribute `status_code` ``` This is due to a wrong return type annotation [here](e926b8c4c1/src/integrations/prefect-aws/tests/workers/test_ecs_worker.py (L355-L391)). ```diff mitmproxy (https://github.com/mitmproxy/mitmproxy) + test/mitmproxy/addons/test_clientplayback.py:18:1: error[invalid-argument-type] Argument to function `asynccontextmanager` is incorrect: Expected `(...) -> AsyncIterator[Unknown]`, found `def tcp_server(handle_conn, **server_args) -> Unknown | tuple[str, int]` ``` [This](a4d794c59a/test/mitmproxy/addons/test_clientplayback.py (L18-L19)) is a true positive. That function should return `AsyncIterator[Address]`, not `Address`. I looked through almost all of the other new diagnostics and they all look like known problems or true positives. ## Typing conformance The typing conformance diff looks good. ## Test Plan New Markdown tests	2025-07-30 11:51:21 +02:00
Alex Waygood	cb5a9ff8dc	[ty] Make tuple subclass constructors sound (#19469)	2025-07-21 21:25:11 +00:00
Alex Waygood	c2380fa0e2	[ty] Extend tuple __len__ and __bool__ special casing to also cover tuple subclasses (#19289) ... Co-authored-by: Brent Westbrook	2025-07-21 12:50:46 +00:00
Alex Waygood	a50a993b9c	[ty] Make tuple instantiations sound (#18987) ... ## Summary Ensure that we correctly infer calls such as `tuple((1, 2))`, `tuple(range(42))`, etc. Ensure that we emit errors on invalid calls such as `tuple[int, str]()`. ## Test Plan Mdtests	2025-06-27 19:37:16 +01:00
lipefree	f379eb6e62	[ty] Treat lambda functions as instances of types.FunctionType (#18431)	2025-06-02 16:46:26 +01:00
Alex Waygood	d1bb10a66b	[ty] Understand classes that inherit from subscripted Protocol[] as generic (#17832)	2025-05-09 17:39:15 +01:00
Alex Waygood	03a4d56624	[ty] Change range of revealed-type diagnostic to be the range of the argument passed in, not the whole call (#17980)	2025-05-09 14:15:39 +01:00
Charlie Marsh	a2e9a7732a	Update class literal display to use <class 'Foo'> style (#17889) ... ## Summary Closes https://github.com/astral-sh/ruff/issues/17238.	2025-05-06 20:11:25 -04:00
Micha Reiser	b51c4f82ea	Rename Red Knot (#17820)	2025-05-03 19:49:15 +02:00