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ab1011ce70
Summary
--
Detects starred assignment targets outside of tuples and lists like `*a
= (1,)`.
This PR only considers assignment statements. I also checked annotated
assigment statements, but these give a separate error that we already
catch, so I think they're okay not to consider:
```pycon
>>> *a: list[int] = []
File "<python-input-72>", line 1
*a: list[int] = []
^
SyntaxError: invalid syntax
```
Fixes #13759
Test Plan
--
New inline tests, plus a new `SemanticSyntaxError` for an existing
parser test. I also removed a now-invalid case from an otherwise-valid
test fixture.
The new semantic error leads to two errors for the case below:
```python
*foo() = 42
```
but this matches [pyright] too.
[pyright]: https://pyright-play.net/?code=FQMw9mAUCUAEC8sAsAmAUEA
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|---|---|---|
| .. | ||
| lexer | ||
| parser | ||
| snapshots | ||
| error.rs | ||
| lexer.rs | ||
| lib.rs | ||
| semantic_errors.rs | ||
| string.rs | ||
| token.rs | ||
| token_set.rs | ||
| token_source.rs | ||
| typing.rs | ||