ruff/crates/ruff_python_parser/resources/valid/expressions
Brent Westbrook d45593288f
[syntax-errors] Starred expressions in return, yield, and for (#17134)
Summary
--

Fixes https://github.com/astral-sh/ruff/issues/16520 by flagging single,
starred expressions in `return`, `yield`, and
`for` statements.

I thought `yield from` would also be included here, but that error is
emitted by
the CPython parser:

```pycon
>>> ast.parse("def f(): yield from *x")
Traceback (most recent call last):
  File "<python-input-214>", line 1, in <module>
    ast.parse("def f(): yield from *x")
    ~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.13/ast.py", line 54, in parse
    return compile(source, filename, mode, flags,
                   _feature_version=feature_version, optimize=optimize)
  File "<unknown>", line 1
    def f(): yield from *x
                        ^
SyntaxError: invalid syntax
```

And we also already catch it in our parser.

Test Plan
--

New inline tests and updates to existing tests.
2025-04-02 08:38:25 -04:00
..
arguments.py
attribute.py
await.py
bin_op.py
bool_op.py
call.py
compare.py
dictionary.py
dictionary_comprehension.py
f_string.py
generator.py
if.py
lambda.py
list.py
list_comprehension.py
name.py
named.py
number_literal.py
parenthesized.py
set.py
set_comprehension.py
slice.py
starred.py
string.py
subscript.py
tuple.py
unary_op.py
yield.py [syntax-errors] Starred expressions in return, yield, and for (#17134) 2025-04-02 08:38:25 -04:00
yield_from.py