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https://github.com/astral-sh/ruff
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1b0ee4677e
## Summary We previously didn't understand `range` and wrote these custom `IntIterable`/`IntIterator` classes for tests. We can now remove them and make the tests shorter in some places.
809 B
809 B
Comprehensions with invalid syntax
# Missing 'in' keyword.
# It's reasonably clear here what they *meant* to write,
# so we'll still infer the correct type:
# error: [invalid-syntax] "Expected 'in', found name"
# revealed: int
[reveal_type(a) for a range(3)]
# Missing iteration variable
# error: [invalid-syntax] "Expected an identifier, but found a keyword 'in' that cannot be used here"
# error: [invalid-syntax] "Expected 'in', found name"
# error: [unresolved-reference]
# revealed: Unknown
[reveal_type(b) for in range(3)]
# Missing iterable
# error: [invalid-syntax] "Expected an expression"
# revealed: Unknown
[reveal_type(c) for c in]
# Missing 'in' keyword and missing iterable
# error: [invalid-syntax] "Expected 'in', found ']'"
# revealed: Unknown
[reveal_type(d) for d]