ruff/crates
Dylan 694e7ed52e
Less confidently mark f-strings as empty when inferring truthiness (#20152)
When computing the boolean value of an f-string, we over-eagerly
interpreted some f-string interpolations as empty. In this PR we now
mark the truthiness of f-strings involving format specs, debug text, and
bytes literals as "unknown".

This will probably result in some false negatives, which may be further
refined (for example - there are probably many cases where
`is_not_empty_f_string` should be modified to return `true`), but for
now at least we should have fewer false positives.

Affected rules (may not be an exhaustive list):

- [unnecessary-empty-iterable-within-deque-call
(RUF037)](https://docs.astral.sh/ruff/rules/unnecessary-empty-iterable-within-deque-call/#unnecessary-empty-iterable-within-deque-call-ruf037)
- [falsy-dict-get-fallback
(RUF056)](https://docs.astral.sh/ruff/rules/falsy-dict-get-fallback/#falsy-dict-get-fallback-ruf056)
- [pytest-assert-always-false
(PT015)](https://docs.astral.sh/ruff/rules/pytest-assert-always-false/#pytest-assert-always-false-pt015)
- [expr-or-not-expr
(SIM221)](https://docs.astral.sh/ruff/rules/expr-or-not-expr/#expr-or-not-expr-sim221)
- [expr-or-true
(SIM222)](https://docs.astral.sh/ruff/rules/expr-or-true/#expr-or-true-sim222)
- [expr-and-false
(SIM223)](https://docs.astral.sh/ruff/rules/expr-and-false/#expr-and-false-sim223)

Closes #19935
2025-08-29 22:12:54 +00:00
..
ruff Show fixes by default (#19919) 2025-08-29 09:53:05 -04:00
ruff_annotate_snippets Move full diagnostic rendering to `ruff_db` (#19415) 2025-08-08 12:56:23 -04:00
ruff_benchmark [ty] Benchmarks for problematic implicit instance attributes cases (#20133) 2025-08-28 15:25:25 +02:00
ruff_cache Switch to Rust 2024 edition (#18129) 2025-05-16 13:25:28 +02:00
ruff_db Show fixes by default (#19919) 2025-08-29 09:53:05 -04:00
ruff_dev [ty] Remove duplicate global lint registry (#20053) 2025-08-22 19:43:12 -04:00
ruff_diagnostics Fix rust feature activation (#20012) 2025-08-21 09:26:06 +02:00
ruff_formatter Update Rust toolchain to 1.89 (#19807) 2025-08-07 18:21:50 +02:00
ruff_graph [ty] Remove `KnownModule::is_enum` (#19681) 2025-08-01 10:31:12 +02:00
ruff_index Update Rust toolchain to 1.88 and MSRV to 1.86 (#19011) 2025-06-28 20:24:00 +02:00
ruff_linter Less confidently mark f-strings as empty when inferring truthiness (#20152) 2025-08-29 22:12:54 +00:00
ruff_macros Don't cache files with diagnostics (#19869) 2025-08-12 15:28:44 -04:00
ruff_memory_usage [ty] Track heap usage of salsa structs (#19790) 2025-08-12 13:28:44 +02:00
ruff_notebook Improve diff rendering for notebooks (#20036) 2025-08-25 09:20:42 -04:00
ruff_options_metadata Update Rust toolchain to 1.89 (#19807) 2025-08-07 18:21:50 +02:00
ruff_python_ast Less confidently mark f-strings as empty when inferring truthiness (#20152) 2025-08-29 22:12:54 +00:00
ruff_python_ast_integration_tests Disallow implicit concatenation of t-strings and other string types (#19485) 2025-07-27 12:41:03 +00:00
ruff_python_codegen Update Rust toolchain to 1.89 (#19807) 2025-08-07 18:21:50 +02:00
ruff_python_formatter [ty] Shrink size of `AstNodeRef` (#20028) 2025-08-22 17:03:22 -04:00
ruff_python_index Switch to Rust 2024 edition (#18129) 2025-05-16 13:25:28 +02:00
ruff_python_literal Switch to Rust 2024 edition (#18129) 2025-05-16 13:25:28 +02:00
ruff_python_parser [ty] Shrink size of `AstNodeRef` (#20028) 2025-08-22 17:03:22 -04:00
ruff_python_semantic Add a `ScopeKind` for the `__class__` cell (#20048) 2025-08-26 09:49:08 -04:00
ruff_python_stdlib Switch to Rust 2024 edition (#18129) 2025-05-16 13:25:28 +02:00
ruff_python_trivia [`ruff`] Preserve relative whitespace in multi-line expressions (`RUF033`) (#19647) 2025-08-27 19:15:44 +00:00
ruff_python_trivia_integration_tests Switch to Rust 2024 edition (#18129) 2025-05-16 13:25:28 +02:00
ruff_server Update Rust toolchain to 1.89 (#19807) 2025-08-07 18:21:50 +02:00
ruff_source_file Move diff rendering to `ruff_db` (#20006) 2025-08-21 09:47:00 -04:00
ruff_text_size [ty] Fix a few more diagnostic differences from Ruff (#19806) 2025-08-08 11:31:19 -04:00
ruff_wasm Bump 0.12.11 (#20136) 2025-08-28 09:45:01 -04:00
ruff_workspace Fix rust feature activation (#20012) 2025-08-21 09:26:06 +02:00
ty [ty] Better error message for attempting to assign to a read-only property (#20150) 2025-08-29 13:22:23 +00:00
ty_combine [ty] Disallow std::env and io methods in most ty crates (#20046) 2025-08-22 11:13:47 -07:00
ty_ide [ty] Refactor inlay hints structure to use separate parts (#20052) 2025-08-26 10:21:31 +05:30
ty_project [ty] Remove duplicate global lint registry (#20053) 2025-08-22 19:43:12 -04:00
ty_python_semantic [ty] skip a slow seed in fuzzer (#20161) 2025-08-29 13:59:16 -07:00
ty_server [ty] Refactor inlay hints structure to use separate parts (#20052) 2025-08-26 10:21:31 +05:30
ty_static [ty] Disallow std::env and io methods in most ty crates (#20046) 2025-08-22 11:13:47 -07:00
ty_test Fix mdtest ignore python code blocks (#20139) 2025-08-28 09:59:03 -07:00
ty_vendored [ty] Sync vendored typeshed stubs (#20083) 2025-08-25 17:01:51 +00:00
ty_wasm [ty] Refactor inlay hints structure to use separate parts (#20052) 2025-08-26 10:21:31 +05:30