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ruff/crates
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Victor Hugo Gomes c0dbcb3434
[flake8-pyi] Implement PYI018 (#6018) 
## Summary

Check for unused private `TypeVar`. See [original
implementation](2a86db8271/pyi.py (L1958)).

```
$ flake8 --select Y018 crates/ruff/resources/test/fixtures/flake8_pyi/PYI018.pyi

crates/ruff/resources/test/fixtures/flake8_pyi/PYI018.pyi:4:1: Y018 TypeVar "_T" is not used
crates/ruff/resources/test/fixtures/flake8_pyi/PYI018.pyi:5:1: Y018 TypeVar "_P" is not used
```

```
$ ./target/debug/ruff --select PYI018 crates/ruff/resources/test/fixtures/flake8_pyi/PYI018.pyi --no-cache

crates/ruff/resources/test/fixtures/flake8_pyi/PYI018.pyi:4:1: PYI018 TypeVar `_T` is never used
crates/ruff/resources/test/fixtures/flake8_pyi/PYI018.pyi:5:1: PYI018 TypeVar `_P` is never used
Found 2 errors.
```
In the file `unused_private_type_declaration.rs`, I'm planning to add
other rules that are similar to `PYI018` like the `PYI046`, `PYI047` and
`PYI049`.

ref #848

## Test Plan

Snapshots and manual runs of flake8.
2023-07-26 22:56:15 +00:00
..
flake8_to_ruff
ruff [flake8-pyi] Implement PYI018 (#6018) 2023-07-26 22:56:15 +00:00
ruff_benchmark Remove parser dependency from ruff-python-ast (#6096) 2023-07-26 17:47:22 +02:00
ruff_cache
ruff_cli Remove parser dependency from ruff-python-ast (#6096) 2023-07-26 17:47:22 +02:00
ruff_dev Remove parser dependency from ruff-python-ast (#6096) 2023-07-26 17:47:22 +02:00
ruff_diagnostics
ruff_formatter
ruff_index
ruff_macros Remove parser dependency from ruff-python-ast (#6096) 2023-07-26 17:47:22 +02:00
ruff_python_ast Rewrite placement logic (#6040) 2023-07-26 16:21:23 +00:00
ruff_python_codegen Remove parser dependency from ruff-python-ast (#6096) 2023-07-26 17:47:22 +02:00
ruff_python_formatter Rewrite placement logic (#6040) 2023-07-26 16:21:23 +00:00
ruff_python_index Remove parser dependency from ruff-python-ast (#6096) 2023-07-26 17:47:22 +02:00
ruff_python_parser Remove parser dependency from ruff-python-ast (#6096) 2023-07-26 17:47:22 +02:00
ruff_python_resolver
ruff_python_semantic [flake8-pyi] Implement PYI018 (#6018) 2023-07-26 22:56:15 +00:00
ruff_python_stdlib
ruff_python_trivia Remove parser dependency from ruff-python-ast (#6096) 2023-07-26 17:47:22 +02:00
ruff_shrinking Remove parser dependency from ruff-python-ast (#6096) 2023-07-26 17:47:22 +02:00
ruff_source_file Remove parser dependency from ruff-python-ast (#6096) 2023-07-26 17:47:22 +02:00
ruff_wasm Remove parser dependency from ruff-python-ast (#6096) 2023-07-26 17:47:22 +02:00