David Peter 2296627528 [red-knot] Precise inference for identity checks (#14109) ... ## Summary Adds more precise type inference for `… is …` and `… is not …` identity checks in some limited cases where we statically know the answer to be either `Literal[True]` or `Literal[False]`. I found this helpful while working on type inference for comparisons involving intersection types, but I'm not sure if this is at all useful for real world code (where the answer is most probably *not* statically known). Note that we already have *type narrowing* for identity tests. So while we are already able to generate constraints for things like `if x is None`, we can now — in some limited cases — make an even stronger conclusion and infer that the test expression itself is `Literal[False]` (branch never taken) or `Literal[True]` (branch always taken). ## Test Plan New Markdown tests		2024-11-05 19:48:52 +01:00
..
red_knot	Enable nursery rules: 'redundant_clone', 'debug_assert_with_mut_call', and 'unused_peekable' (#13920)	2024-10-25 09:46:30 +02:00
red_knot_python_semantic	[red-knot] Precise inference for identity checks (#14109)	2024-11-05 19:48:52 +01:00
red_knot_server	Enable nursery rules: 'redundant_clone', 'debug_assert_with_mut_call', and 'unused_peekable' (#13920)	2024-10-25 09:46:30 +02:00
red_knot_test	Extract `LineIndex` independent methods from `Locator` (#13938)	2024-10-28 07:53:41 +00:00
red_knot_vendored	Sync vendored typeshed stubs (#14030)	2024-11-01 10:51:56 +00:00
red_knot_wasm	Enable nursery rules: 'redundant_clone', 'debug_assert_with_mut_call', and 'unused_peekable' (#13920)	2024-10-25 09:46:30 +02:00
red_knot_workspace	[red-knot] Remove lint-phase (#13922)	2024-10-25 18:40:52 +00:00
ruff	Add links to missing related options within rule documentations (#13971)	2024-11-03 14:15:57 -05:00
ruff_benchmark	[red-knot] Add MRO resolution for classes (#14027)	2024-11-04 13:31:38 +00:00
ruff_cache	Fix cache key collisions for paths with separators (#12159)	2024-07-03 07:36:46 -05:00
ruff_db	Give non-existent files a durability of at least Medium (#14034)	2024-11-01 16:44:30 +01:00
ruff_dev	Alternate quotes for strings inside f-strings in preview (#13860)	2024-10-23 07:57:53 +02:00
ruff_diagnostics	[Minor typo] Fix article in "an fix" (#12797)	2024-08-10 21:22:00 -04:00
ruff_formatter	Join implicit concatenated strings when they fit on a line (#13663)	2024-10-24 11:52:22 +02:00
ruff_graph	Bump MSRV to Rust 1.80 (#13826)	2024-10-20 10:55:36 +02:00
ruff_index	[red-knot] small efficiency improvements and bugfixes to use-def map building (#12373)	2024-07-18 09:24:58 -07:00
ruff_linter	Also remove trailing comma while fixing C409 and C419 (#14097)	2024-11-04 20:33:30 +00:00
ruff_macros	Derive message formats macro support to string (#14093)	2024-11-04 18:06:25 +01:00
ruff_notebook	Bump MSRV to Rust 1.80 (#13826)	2024-10-20 10:55:36 +02:00
ruff_python_ast	Avoid cloning `Name` when looking up function and class types (#14092)	2024-11-04 15:52:59 +01:00
ruff_python_ast_integration_tests	[internal] `ComparableExpr` (f)strings and bytes made invariant under concatenation (#13301)	2024-09-25 16:58:57 +02:00
ruff_python_codegen	Extract `LineIndex` independent methods from `Locator` (#13938)	2024-10-28 07:53:41 +00:00
ruff_python_formatter	Disallow single-line implicit concatenated strings (#13928)	2024-11-03 11:49:26 +00:00
ruff_python_index	Extract `LineIndex` independent methods from `Locator` (#13938)	2024-10-28 07:53:41 +00:00
ruff_python_literal	Remove some unused `pub` functions (#11576)	2024-05-28 09:56:51 -04:00
ruff_python_parser	Short circuit `lex_identifier` if the name is longer or shorter than any known keyword (#13815)	2024-10-19 11:07:15 +00:00
ruff_python_resolver	chore(deps): update rust crate insta to v1.38.0 (#10701)	2024-04-01 15:44:30 +00:00
ruff_python_semantic	Extract `LineIndex` independent methods from `Locator` (#13938)	2024-10-28 07:53:41 +00:00
ruff_python_stdlib	Regenerate known_stdlibs.rs with stdlibs 2024.10.25 (#13963)	2024-10-28 08:37:54 -04:00
ruff_python_trivia	Extract `LineIndex` independent methods from `Locator` (#13938)	2024-10-28 07:53:41 +00:00
ruff_python_trivia_integration_tests	Extract `LineIndex` independent methods from `Locator` (#13938)	2024-10-28 07:53:41 +00:00
ruff_server	Fix server panic when undoing an edit (#14010)	2024-11-01 08:16:53 +01:00
ruff_source_file	Extract `LineIndex` independent methods from `Locator` (#13938)	2024-10-28 07:53:41 +00:00
ruff_text_size	Extract `LineIndex` independent methods from `Locator` (#13938)	2024-10-28 07:53:41 +00:00
ruff_wasm	Bump version to 0.7.2 (#14039)	2024-11-01 19:09:07 +05:30
ruff_workspace	Enable nursery rules: 'redundant_clone', 'debug_assert_with_mut_call', and 'unused_peekable' (#13920)	2024-10-25 09:46:30 +02:00