## Summary
I experimented with [not trimming trailing newlines in code
snippets](https://github.com/astral-sh/ruff/pull/15926#discussion_r1940992090),
but since came to the conclusion that the current behavior is better
because otherwise, there is no way to write snippets without a trailing
newline at all. And when you copy the code from a Markdown snippet in
GitHub, you also don't get a trailing newline.
I was surprised to see some test failures when I played with this
though, and decided to make this test independent from this
implementation detail.
## Summary
Fix line number reporting in MDTest error messages.
## Test Plan
Introduced an error in a Markdown test and made sure that the line in
the error message matches.
## Summary
This is a follow-up to #15726, #15778, and #15794 to preserve the triple
quote and prefix flags in plain strings, bytestrings, and f-strings.
I also added a `StringLiteralFlags::without_triple_quotes` method to
avoid passing along triple quotes in rules like SIM905 where it might
not make sense, as discussed
[here](https://github.com/astral-sh/ruff/pull/15726#discussion_r1930532426).
## Test Plan
Existing tests, plus many new cases in the `generator::tests::quote`
test that should cover all combinations of quotes and prefixes, at least
for simple string bodies.
Closes#7799 when combined with #15694, #15726, #15778, and #15794.
---------
Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
## Summary
Replaces our existing Markdown test parser with a fully hand-written
parser. I tried to fix this bug using the old approach and kept running
into problems. Eventually this seemed like the easier way. It's more
code (+50 lines, excluding the new test), but I hope it's relatively
straightforward to understand, compared to the complex interplay between
the byte-stream-manipulation and regex-parsing that we had before.
I did not really focus on performance, as the parsing time does not
dominate the test execution time, but this seems to be slightly faster
than what we had before (executing all MD tests; debug):
| Command | Mean [s] | Min [s] | Max [s] | Relative |
|:---|---:|---:|---:|---:|
| this branch | 2.775 ± 0.072 | 2.690 | 2.877 | 1.00 |
| `main` | 2.921 ± 0.034 | 2.865 | 2.967 | 1.05 ± 0.03 |
closes#15923
## Test Plan
One new regression test.
## Summary
Extend AIR302 with
* `airflow.operators.bash.BashOperator →
airflow.providers.standard.operators.bash.BashOperator`
* change existing rules `airflow.operators.bash_operator.BashOperator →
airflow.operators.bash.BashOperator` to
`airflow.operators.bash_operator.BashOperator →
airflow.providers.standard.operators.bash.BashOperator`
## Test Plan
a test fixture has been updated
## Summary
Resolves#15695, rework of #15704.
This change modifies the Mdtests framework so that:
* Paths must now be specified in a separate preceding line:
`````markdown
`a.py`:
```py
x = 1
```
`````
If the path of a file conflicts with its `lang`, an error will be
thrown.
* Configs are no longer accepted. The pattern still take them into
account, however, to avoid "Unterminated code block" errors.
* Unnamed files are now assigned unique, `lang`-respecting paths
automatically.
Additionally, all legacy usages have been updated.
## Test Plan
Unit tests and Markdown tests.
---------
Co-authored-by: Carl Meyer <carl@astral.sh>
This extracts some pure refactoring noise from
https://github.com/astral-sh/ruff/pull/15861. This changes the API for
creating and evaluating visibility constraints, but does not change how
they are respresented internally. There should be no behavioral or
performance changes in this PR.
Changes:
- Hide the internal representation isn't changed, so that we can make
changes to it in #15861.
- Add a separate builder type for visibility constraints. (With TDDs, we
will have some additional builder state that we can throw away once
we're done constructing.)
- Remove a layer of helper methods from `UseDefMapBuilder`, making
`SemanticIndexBuilder` responsible for constructing whatever visibility
constraints it needs.
## Summary
Add support for implicitly-defined instance attributes, i.e. support
type inference for cases like this:
```py
class C:
def __init__(self) -> None:
self.x: int = 1
self.y = None
reveal_type(C().x) # int
reveal_type(C().y) # Unknown | None
```
## Benchmarks
Codspeed reports no change in a cold-cache benchmark, and a -1%
regression in the incremental benchmark. On `black`'s `src` folder, I
don't see a statistically significant difference between the branches:
| Command | Mean [ms] | Min [ms] | Max [ms] | Relative |
|:---|---:|---:|---:|---:|
| `./red_knot_main check --project /home/shark/black/src` | 133.7 ± 9.5 | 126.7 | 164.7 | 1.01 ± 0.08 |
| `./red_knot_feature check --project /home/shark/black/src` | 132.2 ± 5.1 | 118.1 | 140.9 | 1.00 |
## Test Plan
Updated and new Markdown tests
## Summary
Given the following code:
```python
set(([x for x in range(5)]))
```
the current implementation of C403 results in
```python
{(x for x in range(5))}
```
which is a set containing a generator rather than the result of the
generator.
This change removes the extraneous parentheses so that the resulting
code is:
```python
{x for x in range(5)}
```
## Test Plan
`cargo nextest run` and `cargo insta test`
## Summary
Related to #15848, this PR adds the imports explicitly as we'll now flag
these symbols as undefined.
---------
Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
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This change does a simple swap of the existing renderer for one that
uses our vendored copy of `annotate-snippets`. We don't change anything
about the diagnostic data model, but this alone already makes
diagnostics look a lot nicer!
This mimics a simplification we have on the OR side, where we simplify
`A ∨ !A` to true. This requires changes to how we add `while` statements
to the semantic index, since we now need distinct
`VisibilityConstraint`s if we need to model evaluating a `Constraint`
multiple times at different points in the execution of the program.
Something Alex and I threw together during our 1:1 this morning. Allows
us to collect statistics on the prevalence of various types in a file,
most usefully TODO types or other dynamic types.
## Summary
This is a follow-up to #15565, tracked in #15642, to reuse the string
replacement logic from the other PEP 695 rules instead of the
`Generator`, which has the benefit of preserving more comments. However,
comments in some places are still dropped, so I added a check for this
and update the fix safety accordingly. I also added a `## Fix safety`
section to the docs to reflect this and the existing `isinstance`
caveat.
## Test Plan
Existing UP040 tests, plus some new cases.
Alex Waygood
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