## Summary
This is a first step toward fixing #7799 by using the quoting style
stored in the `flags` field on `ast::StringLiteral`s to select a quoting
style. This PR does not include support for f-strings or byte strings.
Several rules also needed small updates to pass along existing quoting
styles instead of using `StringLiteralFlags::default()`. The remaining
snapshot changes are intentional and should preserve the quotes from the
input strings.
## Test Plan
Existing tests with some accepted updates, plus a few new RUF055 tests
for raw strings.
---------
Co-authored-by: Alex Waygood <alex.waygood@gmail.com>
## Summary
<!-- What's the purpose of the change? What does it do, and why? -->
* feat
* add is_execute_method_inherits_from_airflow_operator for checking the
removed context key in the execute method
* refactor: rename
* is_airflow_task as is_airflow_task_function_def
* in_airflow_task as in_airflow_task_function_def
* removed_in_3 as airflow_3_removal_expr
* removed_in_3_function_def as airflow_3_removal_function_def
* test:
* reorganize test cases
## Test Plan
a test fixture has been updated
---------
Co-authored-by: Dhruv Manilawala <dhruvmanila@gmail.com>
## Summary
Not the most important feature, but hey... was marked as the good first
issue ;-) fixes#4551
Unfortunately, looks like clap only generates proper completions for
zsh, so this would not make any difference for bash/fish.
## Test Plan
- cargo nextest run
- manual test by sourcing completions and then triggering autocomplete:
```shell
misha@PandaBook ruff % source <(target/debug/ruff generate-shell-completion zsh)
misha@PandaBook ruff % target/debug/ruff config lin
line-length -- The line length to use when enforcing long-lines violations
lint -- Configures how Ruff checks your code.
lint.allowed-confusables -- A list of allowed 'confusable' Unicode characters to ignore
lint.dummy-variable-rgx -- A regular expression used to identify 'dummy' variables, or
lint.exclude -- A list of file patterns to exclude from linting in addition
lint.explicit-preview-rules -- Whether to require exact codes to select preview rules. Whe
lint.extend-fixable -- A list of rule codes or prefixes to consider fixable, in ad
lint.extend-ignore -- A list of rule codes or prefixes to ignore, in addition to
lint.extend-per-file-ignores -- A list of mappings from file pattern to rule codes or prefi
lint.extend-safe-fixes -- A list of rule codes or prefixes for which unsafe fixes sho
lint.extend-select -- A list of rule codes or prefixes to enable, in addition to
lint.extend-unsafe-fixes -- A list of rule codes or prefixes for which safe fixes shoul
lint.external -- A list of rule codes or prefixes that are unsupported by Ru
lint.fixable -- A list of rule codes or prefixes to consider fixable. By de
lint.flake8-annotations -- Print a list of available options
lint.flake8-annotations.allow-star-arg-any -- Whether to suppress `ANN401` for dynamically typed `*args`
...
```
- check command help
```shell
❯ target/debug/ruff config -h
List or describe the available configuration options
Usage: ruff config [OPTIONS] [OPTION]
Arguments:
[OPTION] Config key to show
Options:
--output-format <OUTPUT_FORMAT> Output format [default: text] [possible values: text, json]
-h, --help Print help
Log levels:
-v, --verbose Enable verbose logging
-q, --quiet Print diagnostics, but nothing else
-s, --silent Disable all logging (but still exit with status code "1" upon detecting diagnostics)
Global options:
--config <CONFIG_OPTION> Either a path to a TOML configuration file (`pyproject.toml` or `ruff.toml`), or a TOML `<KEY> =
<VALUE>` pair (such as you might find in a `ruff.toml` configuration file) overriding a specific
configuration option. Overrides of individual settings using this option always take precedence over
all configuration files, including configuration files that were also specified using `--config`
--isolated Ignore all configuration files
```
- running original command
```shell
❯ target/debug/ruff config
cache-dir
extend
output-format
fix
unsafe-fixes
fix-only
show-fixes
required-version
preview
exclude
extend-exclude
extend-include
force-exclude
include
respect-gitignore
builtins
namespace-packages
target-version
src
line-length
indent-width
lint
format
analyze
```
## Summary
Adds a slightly more comprehensive documentation of our behavior
regarding type inference for public uses of symbols. In particular:
- What public type do we infer for `x: int = any()`?
- What public type do we infer for `x: Unknown = 1`?
## Summary
Found a comment that looks to be intended as docstring but accidentally
is just a normal comment.
Didn't create an issue as the readme said it's not neccessary for
trivial changes.
## Test Plan
<!-- How was it tested? -->
Can be tested by regenerating the docs.
Co-authored-by: Marcus Näslund <vidaochmarcus@gmail.com>
## Summary
On `main`, red-knot:
- Considers `P | Q` equivalent to `Q | P`
- Considered `tuple[P | Q]` equivalent to `tuple[Q | P]`
- Considers `tuple[P | tuple[P | Q]]` equivalent to `tuple[tuple[Q | P]
| P]`
- ‼️ Does _not_ consider `tuple[tuple[P | Q]]` equivalent to
`tuple[tuple[Q | P]]`
The key difference for the last one of these is that the union appears
inside a tuple that is directly nested inside another tuple.
This PR fixes this so that differently ordered unions are considered
equivalent even when they appear inside arbitrarily nested tuple types.
## Test Plan
- Added mdtests that fails on `main`
- Checked that all property tests continue to pass with this PR
This is a follow-up to #15702 that hopefully claws back the 1%
performance regression. Assuming it works, the trick is to iterate over
the constraints vectors via mut reference (aka a single pointer), so
that we're not copying `BitSet`s into and out of the zip tuples as we
iterate. We use `std::mem::take` as a poor-man's move constructor only
at the very end, when we're ready to emplace it into the result. (C++
idioms intended! 😄)
With local testing via hyperfine, I'm seeing this be 1-3% faster than
`main` most of the time — though a small number of runs (1 in 10,
maybe?) are a wash or have `main` faster. Codspeed reports a 2%
gain.
## Summary
Use `Unknown | T_inferred` as the type for *undeclared* public symbols.
## Test Plan
- Updated existing tests
- New test for external `__slots__` modifications.
- New tests for external modifications of public symbols.
**Summary**
Airflow 3.0 removes a set of deprecated context variables that were
phased out in 2.x. This PR introduces lint rules to detect usage of
these removed variables in various patterns, helping identify
incompatibilities. The removed context variables include:
```
conf
execution_date
next_ds
next_ds_nodash
next_execution_date
prev_ds
prev_ds_nodash
prev_execution_date
prev_execution_date_success
tomorrow_ds
yesterday_ds
yesterday_ds_nodash
```
**Detected Patterns and Examples**
The linter now flags the use of removed context variables in the
following scenarios:
1. **Direct Subscript Access**
```python
execution_date = context["execution_date"] # Flagged
```
2. **`.get("key")` Method Calls**
```python
print(context.get("execution_date")) # Flagged
```
3. **Variables Assigned from `get_current_context()`**
If a variable is assigned from `get_current_context()` and then used to
access a removed key:
```python
c = get_current_context()
print(c.get("execution_date")) # Flagged
```
4. **Function Parameters in `@task`-Decorated Functions**
Parameters named after removed context variables in functions decorated
with `@task` are flagged:
```python
from airflow.decorators import task
@task
def my_task(execution_date, **kwargs): # Parameter 'execution_date'
flagged
pass
```
5. **Removed Keys in Task Decorator `kwargs` and Other Scenarios**
Other similar patterns where removed context variables appear (e.g., as
part of `kwargs` in a `@task` function) are also detected.
```
from airflow.decorators import task
@task
def process_with_execution_date(**context):
execution_date = lambda: context["execution_date"] # flagged
print(execution_date)
@task(kwargs={"execution_date": "2021-01-01"}) # flagged
def task_with_kwargs(**context):
pass
```
**Test Plan**
Test fixtures covering various patterns of deprecated context usage are
included in this PR. For example:
```python
from airflow.decorators import task, dag, get_current_context
from airflow.models import DAG
from airflow.operators.dummy import DummyOperator
import pendulum
from datetime import datetime
@task
def access_invalid_key_task(**context):
print(context.get("conf")) # 'conf' flagged
@task
def print_config(**context):
execution_date = context["execution_date"] # Flagged
prev_ds = context["prev_ds"] # Flagged
@task
def from_current_context():
context = get_current_context()
print(context["execution_date"]) # Flagged
# Usage outside of a task decorated function
c = get_current_context()
print(c.get("execution_date")) # Flagged
@task
def some_task(execution_date, **kwargs):
print("execution date", execution_date) # Parameter flagged
@dag(
start_date=pendulum.datetime(2021, 1, 1, tz="UTC")
)
def my_dag():
task1 = DummyOperator(
task_id="task1",
params={
"execution_date": "{{ execution_date }}", # Flagged in template context
},
)
access_invalid_key_task()
print_config()
from_current_context()
dag = my_dag()
class CustomOperator(BaseOperator):
def execute(self, context):
execution_date = context.get("execution_date") # Flagged
next_ds = context.get("next_ds") # Flagged
next_execution_date = context["next_execution_date"] # Flagged
```
Ruff will emit `AIR302` diagnostics for each deprecated usage, with
suggestions when applicable, aiding in code migration to Airflow 3.0.
related: https://github.com/apache/airflow/issues/44409,
https://github.com/apache/airflow/issues/41641
---------
Co-authored-by: Wei Lee <weilee.rx@gmail.com>
## Summary
Fixes#9663 and also improves the fixes for
[RUF055](https://docs.astral.sh/ruff/rules/unnecessary-regular-expression/)
since regular expressions are often written as raw strings.
This doesn't include raw f-strings.
## Test Plan
Existing snapshots for RUF055 and PT009, plus a new `Generator` test and
a regression test for the reported `PIE810` issue.
## Summary
Another small PR to focus #15674 solely on the relevant changes. This
makes our Markdown tests less dependent on precise types of public
symbols, without actually changing anything semantically in these tests.
Best reviewed using ignore-whitespace-mode.
## Test Plan
Tested these changes on `main` and on the branch from #15674.
## Summary
Make the remaining `infer.rs` unit tests independent from public symbol
type inference decisions (see upcoming change in #15674).
## Test Plan
- Made sure that the unit tests actually fail if one of the
`assert_type` assertions is changed.
## Summary
Port comprehension tests from Rust to Markdown
I don' think the remaining tests in `infer.rs` should be ported to
Markdown, maybe except for the incremental-checking tests when (if ever)
we have support for that in the MD tests.
closes#13696
## Summary
- Port "deferred annotations" unit tests to Markdown
- Port `implicit_global_in_function` unit test to Markdown
- Removed `resolve_method` and `local_inference` unit tests. These seem
like relics from a time where type inference was in it's early stages.
There is no way that these tests would fail today without lots of other
things going wrong as well.
part of #13696
based on #15683
## Test Plan
New MD tests for existing Rust unit tests.
## Summary
- Add feature to specify a custom typeshed from within Markdown-based
tests
- Port "builtins" unit tests from `infer.rs` to Markdown tests, part of
#13696
## Test Plan
- Tests for the custom typeshed feature
- New Markdown tests for deleted Rust unit tests
## Summary
Addresses the second follow up to #15565 in #15642. This was easier than
expected by using this cool destructuring syntax I hadn't used before,
and by assuming
[PYI059](https://docs.astral.sh/ruff/rules/generic-not-last-base-class/)
(`generic-not-last-base-class`).
## Test Plan
Using an existing test, plus two new tests combining multiple base
classes and multiple generics. It looks like I deleted a relevant test,
which I did, but I meant to rename this in #15565. It looks like instead
I copied it and renamed the copy.
---------
Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
## Summary
This PR extends our [PEP 695](https://peps.python.org/pep-0695) handling
from the type aliases handled by `UP040` to generic function and class
parameters, as suggested in the latter two examples from #4617:
```python
# Input
T = TypeVar("T", bound=float)
class A(Generic[T]):
...
def f(t: T):
...
# Output
class A[T: float]:
...
def f[T: float](t: T):
...
```
I first implemented this as part of `UP040`, but based on a brief
discussion during a very helpful pairing session with @AlexWaygood, I
opted to split them into rules separate from `UP040` and then also
separate from each other. From a quick look, and based on [this
issue](https://github.com/asottile/pyupgrade/issues/836), I'm pretty
sure neither of these rules is currently in pyupgrade, so I just took
the next available codes, `UP046` and `UP047`.
The last main TODO, noted in the rule file and in the fixture, is to
handle generic method parameters not included in the class itself, `S`
in this case:
```python
T = TypeVar("T")
S = TypeVar("S")
class Foo(Generic[T]):
def bar(self, x: T, y: S) -> S: ...
```
but Alex mentioned that that might be okay to leave for a follow-up PR.
I also left a TODO about handling multiple subclasses instead of bailing
out when more than one is present. I'm not sure how common that would
be, but I can still handle it here, or follow up on that too.
I think this is unrelated to the PR, but when I ran `cargo dev
generate-all`, it removed the rule code `PLW0101` from
`ruff.schema.json`. It seemed unrelated, so I left that out, but I
wanted to mention it just in case.
## Test Plan
New test fixture, `cargo nextest run`
Closes#4617, closes#12542
---------
Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
## Summary
Somehow, I managed to crash the `mdtest` runner today. I struggled to
reproduce this again to see if it's actually fixed (even with an
artificial `sleep` between the two `cargo test` invocations), but the
original backtrace clearly showed that this is where the problem
originated from. And it seems like a clear TOCTOU problem.
## Summary
Raise "invalid-assignment" diagnostics for incorrect assignments to
attributes, for example:
```py
class C:
var: str = "a"
C.var = 1 # error: "Object of type `Literal[1]` is not assignable to `str`"
```
closes#15456
## Test Plan
- Updated test assertions
- New test for assignments to module-attributes
## Summary
This PR generalizes some of the logic we have in `Type::is_subtype_of`
and `Type::is_disjoint_from` so that we fallback to the instance type of
the metaclass more often in `Type::ClassLiteral` and `Type::SubclassOf`
branches. This simplifies the code (we end up with one less branch in
`is_subtype_of`, and we can remove a helper method that's no longer
used), makes the code more robust (any fixes made to subtyping or
disjointness of instance types will automatically improve our
understanding of subtyping/disjointness for class-literal types and
`type[]` types) and more elegantly expresses the type-system invariants
encoded in these branches.
## Test Plan
No new tests added (it's a pure refactor, adding no new functionality).
All existing tests pass, however, including the property tests.
The AST generator creates a reference enum for each syntax group — an
enum where each variant contains a reference to the relevant syntax
node. Previously you could customize the name of the reference enum for
a group — primarily because there was an existing `ExpressionRef` type
that wouldn't have lined up with the auto-derived name `ExprRef`. This
follow-up PR is a simple search/replace to switch over to the
auto-derived name, so that we can remove this customization point.
This is a minor cleanup to the AST generation script to make a clearer
separation between nodes that do appear in a group enum, and those that
don't. There are some types and methods that we create for every syntax
node, and others that refer to the group that the syntax node belongs
to, and which therefore don't make sense for ungrouped nodes. This new
separation makes it clearer which category each definition is in, since
you're either inside of a `for group in ast.groups` loop, or a `for node
in ast.all_nodes` loop.
## Summary
Test executables usually write failure messages (including panics) to
stdout, but I just managed to make a mdtest crash with
```
thread 'mdtest__unary_not' has overflowed its stack
fatal runtime error: stack overflow
```
which is printed to stderr. This test simply appends stderr to stdout
(`stderr=subprocess.STDOUT` can not be used with `capture_output`)
## Test Plan
Make sure that the error message is now visible in the output of `uv -q
run crates/red_knot_python_semantic/mdtest.py`
## Summary
The `Options` struct is intended to capture the user's configuration
options but
`EnvironmentOptions::venv_path` supports both a `SitePackages::Known`
and `SitePackages::Derived`.
Users should only be able to provide `SitePackages::Derived`—they
specify a path to a venv, and Red Knot derives the path to the
site-packages directory. We'll only use the `Known` variant once we
automatically discover the Python installation.
That's why this PR changes `EnvironmentOptions::venv_path` from
`Option<SitePackages>` to `Option<SystemPathBuf>`.
This requires making some changes to the file watcher test, and I
decided to use `extra_paths` over venv path
because our venv validation is annoyingly correct -- making mocking a
venv rather involved.
## Test Plan
`cargo test`
## Summary
We were mistakenly using `CommentRanges::has_comments` to determine
whether our edits
were safe, which sometimes expands the checked range to the end of a
line. But in order to
determine safety we need to check exactly the range we're replacing.
This bug affected the rules `runtime-cast-value` (`TC006`) and
`quoted-type-alias` (`TC008`)
although it was very unlikely to be hit for `TC006` and for `TC008` we
never hit it because we
were checking the wrong expression.
## Test Plan
`cargo nextest run`
This commit fixes RUF055 rule to format `re.fullmatch(pattern, var)` to
`var == pattern` instead of the current `pattern == var` behaviour. This
is more idiomatic and easy to understand.
## Summary
This changes the current formatting behaviour of `re.fullmatch(pattern,
var)` to format it to `var == pattern` instead of `pattern == var`.
## Test Plan
I used a code file locally to see the updated formatting behaviour.
Fixes https://github.com/astral-sh/ruff/issues/14733
## Summary
As more and more tests move to Markdown, running the mdtest suite
becomes one of the most common tasks for developers working on Red Knot.
There are a few pain points when doing so, however:
- The `build.rs` script enforces recompilation (~five seconds) whenever
something changes in the `resource/mdtest` folder. This is strictly
necessary, because whenever files are added or removed, the test harness
needs to be updated. But this is very rarely the case! The most common
scenario is that a Markdown file has *changed*, and in this case, no
recompilation is necessary. It is currently not possible to distinguish
these two cases using `cargo::rerun-if-changed`. One can work around
this by running the test executable manually, but it requires finding
the path to the correct `mdtest-<random-hash>` executable.
- All Markdown tests are run by default. This is needed whenever Rust
code changes, but while working on the tests themselves, it is often
much more convenient to only run the tests for a single file. This can
be done by using a `mdtest__path_to_file` filter, but this needs to be
manually spelled out or copied from the test output.
- `cargo`s test output for a failing Markdown test is often
unnecessarily verbose. Unless there is an *actual* panic somewhere in
the code, mdtests usually fail with the explicit *"Some tests failed"*
panic in the mdtest suite. But in those cases, we are not interested in
the pointer to the source of this panic, but only in the mdtest suite
output.
This PR adds a Markdown test runner tool that attempts to make the
developer experience better.
Once it is started using
```bash
uv run -q crates/red_knot_python_semantic/mdtest.py
```
it will first recompile the tests once (if cargo requires it), find the
path to the `mdtest` executable, and then enter into a mode where it
watches for changes in the `red_knot_python_semantic` crate. Whenever …
* … a Markdown file changes, it will rerun the mdtest for this specific
file automatically (no recompilation!).
* … a Markdown file is added, it will recompile the tests and then run
the mdtest for the new file
* … Rust code is changed, it will recompile the tests and run all of
them
The tool also trims down `cargo test` output and only shows the actual
mdtest errors.
The tool will certainly require a few more iterations before it becomes
mature, but I'm curious to hear if there is any interest for something
like this.
## Test Plan
- Tested the new runner under various scenarios.
---------
Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
## Summary
Rename two functions with outdated names (they used to return `Type`s):
* `bindings_ty` => `symbol_from_bindings` (returns `Symbol`)
* `declarations_ty` => `symbol_from_declarations` (returns a
`SymbolAndQualifiers` result)
I chose `symbol_from_*` instead of `*_symbol` as I found the previous
name quite confusing. Especially since `binding_ty` and `declaration_ty`
also exist (singular).
## Test Plan
—
---------
Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
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## Test Plan
<!-- How was it tested? -->
This PR contains the following updates:
| Package | Type | Update | Change |
|---|---|---|---|
| [notify](https://redirect.github.com/notify-rs/notify) |
workspace.dependencies | major | `7.0.0` -> `8.0.0` |
---
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---
### Release Notes
<details>
<summary>notify-rs/notify (notify)</summary>
###
[`v8.0.0`](https://redirect.github.com/notify-rs/notify/blob/HEAD/CHANGELOG.md#notify-800-2025-01-10)
[Compare
Source](https://redirect.github.com/notify-rs/notify/compare/notify-7.0.0...notify-8.0.0)
- CHANGE: update notify-types to version 2.0.0
- CHANGE: raise MSRV to 1.77 **breaking**
- FEATURE: add config option to disable following symbolic links
[#​635]
- FIX: unaligned access to FILE_NOTIFY_INFORMATION [#​647]
**breaking**
[#​635]: https://redirect.github.com/notify-rs/notify/pull/635
[#​647]: https://redirect.github.com/notify-rs/notify/pull/647
</details>
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## Summary
In preperation for https://github.com/astral-sh/ruff/pull/15558
Isolate the `show_settings` test instead of reading Ruff's
`pyproject.toml` for better test isolation.
## Test Plan
`cargo test`
## Summary
I noticed this while reviewing
https://github.com/astral-sh/ruff/pull/15541 that the code inside the
large closure cannot be formatted by the Rust formatter. This PR
extracts the qualified name and inlines the match expression.
## Test Plan
`cargo clippy` and `cargo insta`
## Summary
Right now, these are being applied in random order, since if we have two
`RedefinitionWhileUnused`, it just takes the first-generated (whereas
the next comparator in the sort here orders by location)... Which means
we frequently have to re-run!
## Summary
The fix range for sorting imports accounts for trailing whitespace, but
we should only show the trimmed range to the user when displaying the
diagnostic. So this PR changes the diagnostic range.
Closes#15504
## Test Plan
Reviewed snapshot changes
## Summary
Added some extra notes on why you should have focused try...except
blocks to
[TRY300](https://docs.astral.sh/ruff/rules/try-consider-else/).
When fixing a violation of this rule, a co-worker of mine (very
understandably) asked why this was better. The current docs just say
putting the return in the else is "more explicit", but if you look at
the [linked reference in the python
documentation](https://docs.python.org/3/tutorial/errors.html) they are
more clear on why violations like this is bad:
> The use of the else clause is better than adding additional code to
the [try](https://docs.python.org/3/reference/compound_stmts.html#try)
clause because it avoids accidentally catching an exception that wasn’t
raised by the code being protected by the try … except statement.
This is my attempt at adding more context to the docs on this. Open to
suggestions for wording!
---------
Co-authored-by: dylwil3 <dylwil3@gmail.com>
In the following situation:
```python
class Grandparent:
__slots__ = "a"
class Parent(Grandparent): ...
class Child(Parent):
__slots__ = "a"
```
the message for `W0244` now specifies that `a` is overwriting a slot
from `Grandparent`.
To implement this, we introduce a helper function `iter_super_classes`
which does a breadth-first traversal of the superclasses of a given
class (as long as they are defined in the same file, due to the usual
limitations of the semantic model).
Note: Python does not allow conflicting slots definitions under multiple
inheritance. Unless I'm misunderstanding something, I believe It follows
that the subposet of superclasses of a given class that redefine a given
slot is in fact totally ordered. There is therefore a unique _nearest_
superclass whose slot is being overwritten. So, you know, in case anyone
was super worried about that... you can just chill.
This is a followup to #9640 .
## Summary
Add support for `typing.ClassVar`, i.e. emit a diagnostic in this
scenario:
```py
from typing import ClassVar
class C:
x: ClassVar[int] = 1
c = C()
c.x = 3 # error: "Cannot assign to pure class variable `x` from an instance of type `C`"
```
## Test Plan
- New tests for the `typing.ClassVar` qualifier
- Fixed one TODO in `attributes.md`
## Summary
Resolves#15016.
## Test Plan
Generate the docs with:
```console
uv run --with-requirements docs/requirements-insiders.txt scripts/generate_mkdocs.py
```
and, check whether the mapping was created in `mkdocs.generated.yml` and run the server using:
```console
uvx --with-requirements docs/requirements-insiders.txt -- mkdocs serve -f mkdocs.insiders.yml -o
```
While looking into potential AST optimizations, I noticed the `AstNode`
trait and `AnyNode` type aren't used anywhere in Ruff or Red Knot. It
looks like they might be historical artifacts of previous ways of
consuming AST nodes?
- `AstNode::cast`, `AstNode::cast_ref`, and `AstNode::can_cast` are not
used anywhere.
- Since `cast_ref` isn't needed anymore, the `Ref` associated type isn't
either.
This is a pure refactoring, with no intended behavior changes.
This PR replaces most of the hard-coded AST definitions with a
generation script, similar to what happens in `rust_python_formatter`.
I've replaced every "rote" definition that I could find, where the
content is entirely boilerplate and only depends on what syntax nodes
there are and which groups they belong to.
This is a pretty massive diff, but it's entirely a refactoring. It
should make absolutely no changes to the API or implementation. In
particular, this required adding some configuration knobs that let us
override default auto-generated names where they don't line up with
types that we created previously by hand.
## Test plan
There should be no changes outside of the `rust_python_ast` crate, which
verifies that there were no API changes as a result of the
auto-generation. Aggressive `cargo clippy` and `uvx pre-commit` runs
after each commit in the branch.
---------
Co-authored-by: Micha Reiser <micha@reiser.io>
Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
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## Summary
Fixes parentheses not being stripped in C401. Pretty much the same as
#11607 which fixed it for C400.
## Test Plan
`cargo nextest run`
## Summary
This is a small, tentative step towards the bigger goal of understanding
instance attributes.
- Adds partial support for pure instance variables declared in the class
body, i.e. this case:
```py
class C:
variable1: str = "a"
variable2 = "b"
reveal_type(C().variable1) # str
reveal_type(C().variable2) # Unknown | Literal["b"]
```
- Adds `property` as a known class to query for `@property` decorators
- Splits up various `@Todo(instance attributes)` cases into
sub-categories.
## Test Plan
Modified existing MD tests.
## Summary
This PR adds support for configuring Red Knot in the `tool.knot` section
of the project's
`pyproject.toml` section. Options specified on the CLI precede the
options in the configuration file.
This PR only supports the `environment` and the `src.root` options for
now.
Other options will be added as separate PRs.
There are also a few concerns that I intentionally ignored as part of
this PR:
* Handling of relative paths: We need to anchor paths relative to the
current working directory (CLI), or the project (`pyproject.toml` or
`knot.toml`)
* Tracking the source of a value. Diagnostics would benefit from knowing
from which configuration a value comes so that we can point the user to
the right configuration file (or CLI) if the configuration is invalid.
* Schema generation and there's a lot more; see
https://github.com/astral-sh/ruff/issues/15491
This PR changes the default for first party codes: Our existing default
was to only add the project root. Now, Red Knot adds the project root
and `src` (if such a directory exists).
Theoretically, we'd have to add a file watcher event that changes the
first-party search paths if a user later creates a `src` directory. I
think this is pretty uncommon, which is why I ignored the complexity for
now but I can be persuaded to handle it if it's considered important.
Part of https://github.com/astral-sh/ruff/issues/15491
## Test Plan
Existing tests, new file watching test demonstrating that changing the
python version and platform is correctly reflected.
## Summary
Closes https://github.com/astral-sh/ruff/issues/15508
For any two instance types `T` and `S`, we know they are disjoint if
either `T` is final and `T` is not a subclass of `S` or `S` is final and
`S` is not a subclass of `T`.
Correspondingly, for any two types `type[T]` and `S` where `S` is an
instance type, `type[T]` can be said to be disjoint from `S` if `S` is
disjoint from `U`, where `U` is the type that represents all instances
of `T`'s metaclass.
And a heterogeneous tuple type can be said to be disjoint from an
instance type if the instance type is disjoint from `tuple` (a type
representing all instances of the `tuple` class at runtime).
## Test Plan
- A new mdtest added. Most of our `is_disjoint_from()` tests are not
written as mdtests just yet, but it's pretty hard to test some of these
edge cases from a Rust unit test!
- Ran `QUICKCHECK_TESTS=1000000 cargo test --release -p
red_knot_python_semantic -- --ignored types::property_tests::stable`
---------
Co-authored-by: Carl Meyer <carl@astral.sh>
## Summary
Add a setting to allow ignoring one line docstrings for the pydoclint
rules.
Resolves#13086
Part of #12434
## Test Plan
Run tests with setting enabled.
---------
Co-authored-by: dylwil3 <dylwil3@gmail.com>
## Summary
This fixes the infinite loop reported in #14389 by raising an error to
the user about conflicting ICN001 (`unconventional-import-alias`) and
I002 (`missing-required-import`) configuration options.
## Test Plan
Added a CLI integration test reproducing the old behavior and then
confirming the fix.
Closes#14389
---------
Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
## Summary
This fixes the infinite loop reported in #12897, where an
`unused-import` that is undefined at the scope of `__all__` is "fixed"
by adding it to `__all__` repeatedly. These changes make it so that only
imports in the global scope will be suggested to add to `__all__` and
the unused local import is simply removed.
## Test Plan
Added a CLI integration test that sets up the same module structure as
the original report
Closes#12897
---------
Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
## Summary
Ref: https://github.com/astral-sh/ruff/pull/15387#discussion_r1917796907
This PR updates `F722` to show syntax error message instead of the
string content.
I think it's more useful to show the syntax error message than the
string content. In the future, when the diagnostics renderer is more
capable, we could even highlight the exact location of the syntax error
along with the annotation string.
This is also in line with how we show the diagnostic in red knot.
## Test Plan
Update existing test snapshots.
## Summary
Resolves#9467
Parse quoted annotations as if the string content is inside parenthesis.
With this logic `x` and `y` in this example are equal:
```python
y: """
int |
str
"""
z: """(
int |
str
)
"""
```
Also this rule only applies to triple
quotes([link](https://github.com/python/typing-council/issues/9#issuecomment-1890808610)).
This PR is based on the
[comments](https://github.com/astral-sh/ruff/issues/9467#issuecomment-2579180991)
on the issue.
I did one extra change, since we don't want any indentation tokens I am
setting the `State::Other` as the initial state of the Lexer.
Remaining work:
- [x] Add a test case for red-knot.
- [x] Add more tests.
## Test Plan
Added a test which previously failed because quoted annotation contained
indentation.
Added an mdtest for red-knot.
Updated previous test.
Co-authored-by: Dhruv Manilawala <dhruvmanila@gmail.com>
Co-authored-by: Micha Reiser <micha@reiser.io>
## Summary
Allow links to issues that appear on the same line as the TODO
directive, if they conform to the format that VSCode's GitHub PR
extension produces.
Revival of #9627 (the branch was stale enough that rebasing was a lot
harder than just making the changes anew). Credit should go to the
author of that PR though.
Closes#8061
Co-authored-by: Martin Bernstorff <martinbernstorff@gmail.com>
Instead of doing this on a lint-by-lint basis, we now just do it right
before rendering. This is more broadly applicable.
Note that this doesn't fix the diagnostic rendering for the Python
parser. But that's using a different path anyway (`annotate-snippets` is
only used in tests).
Previously, these were pointing to the right place, but were missing the
`^`. With the `annotate-snippets` upgrade, the `^` was added, but they
started pointing to the end of the previous line instead of the
beginning of the following line. In this case, we really want it to
point to the beginning of the following line since we're calling out
indentation issues.
As in a prior commit, we fix this by tweaking the offsets emitted by the
lint itself. Instead of an empty range at the beginning of the line, we
point to the first character in the line. This "forces" the renderer to
point to the beginning of the line instead of the end of the preceding
line.
The end effect here is that the rendering is fixed by adding `^` in the
proper location.
This update includes some missing `^` in the diagnostic annotations.
This update also includes some shifting of "syntax error" annotations to
the end of the preceding line. I believe this is technically a
regression, but fixing them has proven quite difficult. I *think* the
best way to do that might be to tweak the spans generated by the Python
parser errors, but I didn't want to dig into that. (Another approach
would be to change the `annotate-snippets` rendering, but when I tried
that and managed to fix these regressions, I ended up causing a bunch of
other regressions.)
Ref 77d454525e (r1915458616)
This change also requires some shuffling to the offsets we generate for
the diagnostic. Previously, we were generating an empty range
immediately *after* the line terminator and immediate before the first
byte of the subsequent line. How this is rendered is somewhat open to
interpretation, but the new version of `annotate-snippets` chooses to
render this at the end of the preceding line instead of the beginning of
the following line.
In this case, we want the diagnostic to point to the beginning of the
following line. So we either need to change `annotate-snippets` to
render such spans at the beginning of the following line, or we need to
change our span to point to the first full character in the following
line. The latter will force `annotate-snippets` to move the caret to the
proper location.
I ended up deciding to change our spans instead of changing how
`annotate-snippets` renders empty spans after a line terminator. While I
didn't investigate it, my guess is that they probably had good reason
for doing so, and it doesn't necessarily strike me as _wrong_.
Furthermore, fixing up our spans seems like a good idea regardless, and
was pretty easy to do.
This looks like a bug fix since the caret is now pointing right at the
position of the unprintable character. I'm not sure if this is a result
of an improvement via the `annotate-snippets` upgrade, or because of
more accurate tracking of annotation ranges even after unprintable
characters are replaced. I'm tempted to say the former since in theory
the offsets were never wrong before because they were codepoint offsets.
Regardless, this looks like an improvement.
This updates snapshots where long lines now get trimmed with
`annotate-snippets`. And an ellipsis is inserted to indicate trimming.
This is a little hokey to test since in tests we don't do any styling.
And I believe this just uses the default "max term width" for rendering.
But in real life, it seems like a big improvement to have long lines
trimmed if they would otherwise wrap in the terminal. So this seems like
an improvement to me.
There are some other fixes here that overlap with previous categories.
We do this because `...` is valid Python, which makes it pretty likely
that some line trimming will lead to ambiguous output. So we add support
for overriding the cut indicator. This also requires changing some of
the alignment math, which was previously tightly coupled to `...`.
For Ruff, we go with `…` (`U+2026 HORIZONTAL ELLIPSIS`) for our cut
indicator.
For more details, see the patch sent to upstream:
https://github.com/rust-lang/annotate-snippets-rs/pull/172
This fix was sent upstream and the PR description includes more details:
https://github.com/rust-lang/annotate-snippets-rs/pull/170
Without this fix, there was an errant snapshot diff that looked like
this:
|
1 | version = "0.1.0"
2 | # Ensure that the spans from toml handle utf-8 correctly
3 | authors = [
| ___________^
4 | | { name = "Z͑ͫ̓ͪ̂ͫ̽͏̴̙...A̴̵̜̰͔ͫ͗͢L̠ͨͧͩ͘G̴̻͈͍̑͗̎̅͛́Ǫ̵̹̻̝̳͂̌̌͘", email = 1 }
5 | | ]
| |_^ RUF200
|
That ellipsis should _not_ be inserted since the line is not actually
truncated. The handling of line length (in bytes versus actual rendered
length) wasn't quite being handled correctly in all cases.
With this fix, there's (correctly) no snapshot diff.
The change to the rendering code is elaborated on in more detail here,
where I attempted to upstream it:
https://github.com/rust-lang/annotate-snippets-rs/pull/169
Otherwise, the snapshot diff also shows a bug fix: a `^` is now rendered
where as it previously was not.
This one almost looks like it fits into the other failure categories,
but without identifying root causes, it's hard to say for sure. The span
here does end after a line terminator, so it feels like it's like the
rest.
I also isolated this change since I found the snapshot diff pretty hard
to read and wanted to look at it more closely. In this case, the before
is:
E204.py:31:2: E204 [*] Whitespace after decorator
|
30 | # E204
31 | @ \
| __^
32 | | foo
| |_^ E204
33 | def baz():
34 | print('baz')
|
= help: Remove whitespace
And the after is:
E204.py:31:2: E204 [*] Whitespace after decorator
|
30 | # E204
31 | @ \
| ^^ E204
32 | foo
33 | def baz():
34 | print('baz')
|
= help: Remove whitespace
The updated rendering is clearly an improvement, since `foo` itself is
not really the subject of the diagnostic. The whitespace is.
Also, the new rendering matches the span fed to `annotate-snippets`,
where as the old rendering does not.
I separated out this snapshot update since the string of `^` including
whitespace looked a little odd. I investigated this one specifically,
and indeed, our span in this case is telling `annotate-snippets` to
point at the whitespace. So this is `annotate-snippets` doing what it's
told with a mildly sub-optimal span.
For clarity, the before rendering is:
skip.py:34:1: I001 [*] Import block is un-sorted or un-formatted
|
32 | import sys; import os # isort:skip
33 | import sys; import os # isort:skip # isort:skip
34 | / import sys; import os
|
= help: Organize imports
And now after is:
skip.py:34:1: I001 [*] Import block is un-sorted or un-formatted
|
32 | import sys; import os # isort:skip
33 | import sys; import os # isort:skip # isort:skip
34 | import sys; import os
| ^^^^^^^^^^^^^^^^^^^^^^^^^ I001
|
= help: Organize imports
This is a clear bug fix since it adds in the `I001` annotation, even
though the carets look a little funny by including the whitespace
preceding `import sys; import os`.
This group of updates is similar to the last one, but they call out the
fact that while the change is an improvement, it does still seem to be a
little buggy.
As one example, previously we would have this:
|
1 | / from __future__ import annotations
2 | |
3 | | from typing import Any
4 | |
5 | | from requests import Session
6 | |
7 | | from my_first_party import my_first_party_object
8 | |
9 | | from . import my_local_folder_object
10 | |
11 | |
12 | |
13 | | class Thing(object):
| |_^ I001
14 | name: str
15 | def __init__(self, name: str):
|
= help: Organize imports
And now here's what it looks like after:
|
1 | / from __future__ import annotations
2 | |
3 | | from typing import Any
4 | |
5 | | from requests import Session
6 | |
7 | | from my_first_party import my_first_party_object
8 | |
9 | | from . import my_local_folder_object
10 | |
11 | |
12 | |
| |__^ Organize imports
13 | class Thing(object):
14 | name: str
15 | def __init__(self, name: str):
|
= help: Organize imports
So at least now, the diagnostic is not pointing to a completely
unrelated thing (`class Thing`), but it's still not quite pointing to
the imports directly. And the `^` is a bit offset. After looking at
some examples more closely, I think this is probably more of a bug
with how we're generating offsets, since we are actually pointing to
a location that is a few empty lines _below_ the last import. And
`annotate-snippets` is rendering that part correctly. However, the
offset from the left (the `^` is pointing at `r` instead of `f` or even
at the end of `from . import my_local_folder_object`) appears to be a
problem with `annotate-snippets` itself.
We accept this under the reasoning that it's an improvement, albeit not
perfect.
I believe this case is different from the last in that it happens when
the end of a *multi-line* annotation occurs after a line terminator.
Previously, the diagnostic would render on the next line, which is
definitely a bit weird. This new update renders it at the end of the
line the annotation ends on.
In some cases, the annotation was previously rendered to point at source
lines below where the error occurred, which is probably pretty
confusing.
This looks like a bug fix that occurs when the annotation is a
zero-width span immediately following a line terminator. Previously, the
caret seems to be rendered on the next line, but it should be rendered
at the end of the line the span corresponds to.
I admit that this one is kinda weird. I would somewhat expect that our
spans here are actually incorrect, and that to obtain this sort of
rendering, we should identify a span just immediately _before_ the line
terminator and not after it. But I don't want to dive into that rabbit
hole for now (and given how `annotate-snippets` now renders these
spans, perhaps there is more to it than I see), and this does seem like
a clear improvement given the spans we feed to `annotate-snippets`.
The previous rendering just seems wrong in that a `^` is omitted. The
new version of `annotate-snippets` seems to get this right. I checked a
pseudo random sample of these, and it seems to only happen when the
position pointed at a line terminator.
It's hard to grok the change from the snapshot diffs alone, so here's
one example. Before:
PYI021.pyi:15:5: PYI021 [*] Docstrings should not be included in stubs
|
14 | class Baz:
15 | """Multiline docstring
| _____^
16 | |
17 | | Lorem ipsum dolor sit amet
18 | | """
| |_______^ PYI021
19 |
20 | def __init__(self) -> None: ...
|
= help: Remove docstring
And now after:
PYI021.pyi:15:5: PYI021 [*] Docstrings should not be included in stubs
|
14 | class Baz:
15 | / """Multiline docstring
16 | |
17 | | Lorem ipsum dolor sit amet
18 | | """
| |_______^ PYI021
19 |
20 | def __init__(self) -> None: ...
|
= help: Remove docstring
I personally think both of these are fine. If we felt strongly, I could
investigate reverting to the old style, but the new style seems okay to
me.
In other words, these updates I believe are just cosmetic and not a bug
fix.
These updates center around the addition of annotations in the
diagnostic rendering. Previously, the annotation was just not rendered
at all. With the `annotate-snippets` upgrade, it is now rendered. I
examined a pseudo random sample of these, and they all look correct.
As will be true in future batches, some of these snapshots also have
changes to whitespace in them as well.
These snapshot changes should *all* only be a result of changes to
trailing whitespace in the output. I checked a psuedo random sample of
these, and the whitespace found in the previous snapshots seems to be an
artifact of the rendering and _not_ of the source data. So this seems
like a strict bug fix to me.
There are other snapshots with whitespace changes, but they also have
other changes that we split out into separate commits. Basically, we're
going to do approximately one commit per category of change.
This represents, by far, the biggest chunk of changes to snapshots as a
result of the `annotate-snippets` upgrade.
Previously, we were replacing unprintable ASCII characters with a
printable representation of them via fancier Unicode characters. Since
`annotate-snippets` used to use codepoint offsets, this didn't make our
ranges incorrect: we swapped one codepoint for another.
But now, with the `annotate-snippets` upgrade, we use byte offsets
(which is IMO the correct choice). However, this means our ranges can be
thrown off since an ASCII codepoint is always one byte and a non-ASCII
codepoint is always more than one byte.
Instead of tweaking the `ShowNonprinting` trait and making it more
complicated (which is used in places other than this diagnostic
rendering it seems), we instead change `replace_whitespace` to handle
non-printable characters. This works out because `replace_whitespace`
was already updating the annotation range to account for the tab
replacement. We copy that approach for unprintable characters.
This is pretty much just moving to the new API and taking care to use
byte offsets. This is *almost* enough. The next commit will fix a bug
involving the handling of unprintable characters as a result of
switching to byte offsets.
This is a tiny change that, perhaps slightly shady, permits us to use
the `annotate-snippets` renderer without its mandatory header (which
wasn't there in `annotate-snippets 0.9`). Specifically, we can now do
this:
Level::None.title("")
The combination of a "none" level and an empty label results in the
`annotate-snippets` header being skipped entirely. (Not even an empty
line is written.)
This is maybe not the right API for upstream `annotate-snippets`, but
it's very easy for us to do and unblocks the upgrade (albeit relying on
a vendored copy).
Ref https://github.com/rust-lang/annotate-snippets-rs/issues/167
This merely adds the crate to our repository. Some cosmetic changes are
made to make it work in our repo and follow our conventions, such as
changing the name to `ruff_annotate_snippets`. We retain the original
license information. We do drop some things, such as benchmarks, but
keep tests and examples.
## Summary
The initial purpose was to fix#15043, where code like this:
```python
from fastapi import FastAPI, Query
app = FastAPI()
@app.get("/test")
def handler(echo: str = Query("")):
return echo
```
was being fixed to the invalid code below:
```python
from typing import Annotated
from fastapi import FastAPI, Query
app = FastAPI()
@app.get("/test")
def handler(echo: Annotated[str, Query("")]): # changed
return echo
```
As @MichaReiser pointed out, the correct fix is:
```python
from typing import Annotated
from fastapi import FastAPI, Query
app = FastAPI()
@app.get("/test")
def handler(echo: Annotated[str, Query()] = ""): # changed
return echo
```
After fixing the issue for `Query`, I realized that other classes like
`Path`, `Body`, `Cookie`, `Header`, `File`, and `Form` also looked
susceptible to this issue. The last few commits should handle these too,
which I think means this will also close#12913.
I had to reorder the arguments to the `do_stuff` test case because the
new fix removes some default argument values (eg for `Path`:
`some_path_param: str = Path()` becomes `some_path_param: Annotated[str,
Path()]`).
There's also #14484 related to this rule. I'm happy to take a stab at
that here or in a follow up PR too.
## Test Plan
`cargo test`
I also checked the fixed output with `uv run --with fastapi
FAST002_0.py`, but it required making a bunch of additional changes to
the test file that I wasn't sure we wanted in this PR.
---------
Co-authored-by: Micha Reiser <micha@reiser.io>
## Summary
If `S <: T`, then `~T <: ~S`. This test currently fails with example
like:
```
S = tuple[()]
T = ~Literal[True] & ~Literal[False]
```
`T` is equivalent to `~(Literal[True] | Literal[False])` and therefore
equivalent to `~bool`, but the minimal example for a failure is what is
stated above. We correctly recognize that `S <: T`, but fail to see that
`~T <: ~S`, i.e. `bool <: ~tuple[()]`.
This is why the tests goes into the "flaky" section as well.
## Test Plan
```
export QUICKCHECK_TESTS=100000
while cargo test --release -p red_knot_python_semantic -- --ignored types::property_tests::flaky::negation_reverses_subtype_order; do :; done
```
## Summary
Adds some initial tests for class and instance attributes, mostly to
document (and discuss) what we want to support eventually. These
tests are not exhaustive yet. The idea is to specify the coarse-grained
behavior first.
Things that we'll eventually want to test:
- Interplay with inheritance
- Support `Final` in addition to `ClassVar`
- Specific tests for `ClassVar`, like making sure that we support things
like `x: Annotated[ClassVar[int], "metadata"]`
- … or making sure that we raise an error here:
```py
class Foo:
def __init__(self):
self.x: ClassVar[str] = "x"
```
- Add tests for `__new__` in addition to the tests for `__init__`
- Add tests that show that we use the union of types if multiple methods
define the symbol with different types
- Make sure that diagnostics are raised if, e.g., the inferred type of
an assignment within a method does not match the declared type in the
class body.
- https://github.com/astral-sh/ruff/pull/15474#discussion_r1916556284
- Method calls are completely left out for now.
- Same for `@property`
- … and the descriptor protocol
## Test Plan
New Markdown tests
Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
## Summary
The next sync of typeshed would have failed without manual changes
anyway, so I'm doing one manual sync + the required changes in our
`sys.platform` tests (which are necessary because of my tiny typeshed PR
here: https://github.com/python/typeshed/pull/13378).
closes#15485 (the next run of the pipeline in two weeks should be fine
as the bug has been fixed upstream)
## Summary
Adds two additional tests for `is_equivalent_to` so that we cover all
properties of an [equivalence relation].
## Test Plan
```
while cargo test --release -p red_knot_python_semantic -- --ignored types::property_tests::stable; do :; done
```
[equivalence relation]:
https://en.wikipedia.org/wiki/Equivalence_relation
## Summary
This PR fixes the `show_*_msg` macros to pass all the tokens instead of
just a single token. This allows for using various expressions right in
the macro similar to how it would be in `format_args!`.
## Test Plan
`cargo clippy`
## Summary
This PR creates separate functions to check whether the document path is
excluded for linting or formatting. The main motivation is to avoid the
double `Option` for the call sites and makes passing the correct
settings simpler.
## Summary
This changeset adds new tests for public uses of symbols,
considering all possible declaredness and boundness states.
Note that this is a mere documentation of the current behavior. There is
still an [open ticket] questioning some of these choices (or unintential
behaviors).
## Test plan
Made sure that the respective test fails if I add the questionable case
again in `symbol_by_id`:
```rs
Symbol::Type(inferred_ty, Boundness::Bound) => {
Symbol::Type(inferred_ty, Boundness::Bound)
}
```
[open ticket]: https://github.com/astral-sh/ruff/issues/14297
## Summary
<!-- What's the purpose of the change? What does it do, and why? -->
Replace typo "security_managr" in AIR303 as "security_manager"
## Test Plan
<!-- How was it tested? -->
a test fixture has been updated
## Summary
Simplification follow-up to #15413.
There's no need to have a dedicated `CallOutcome` variant for every
known function, it's only necessary if the special-cased behavior of the
known function includes emitting extra diagnostics. For `typing.cast`,
there's no such need; we can use the regular `Callable` outcome variant,
and update the return type according to the cast. (This is the same way
we already handle `len`.)
One reason to avoid proliferating unnecessary `CallOutcome` variants is
that currently we have to explicitly add emitting call-binding
diagnostics, for each outcome variant. So we were previously wrongly
silencing any binding diagnostics on calls to `typing.cast`. Fixing this
revealed a separate bug, that we were emitting a bogus error anytime
more than one keyword argument mapped to a `**kwargs` parameter. So this
PR also adds test and fix for that bug.
## Test Plan
Existing `cast` tests pass unchanged, added new test for `**kwargs` bug.
## Summary
I noticed this while trying out
https://github.com/astral-sh/ruff-vscode/issues/665 that we use the
`Display` implementation to show the error which hides the context. This
PR changes it to use the `Debug` implementation and adds the message as
a context.
## Test Plan
**Before:**
```
0.001228084s ERROR main ruff_server::session::index::ruff_settings: Unable to find editor-specified configuration file: Failed to parse /private/tmp/hatch-test/ruff.toml
```
**After:**
```
0.002348750s ERROR main ruff_server::session::index::ruff_settings: Unable to load editor-specified configuration file
Caused by:
0: Failed to parse /private/tmp/hatch-test/ruff.toml
1: TOML parse error at line 2, column 18
|
2 | extend-select = ["ASYNC101"]
| ^^^^^^^^^^
Unknown rule selector: `ASYNC101`
```
## Summary
In `SymbolState` merging, use `BitSet::union` instead of inserting
declarations one by one. This used to be the case but was changed in
https://github.com/astral-sh/ruff/pull/15019 because we had to iterate
over declarations anyway.
This is an alternative to https://github.com/astral-sh/ruff/pull/15419
by @MichaReiser. It's similar in performance, but a bit more
declarative and less imperative.
## Summary
Follow-up PR from https://github.com/astral-sh/ruff/pull/15415🥲
The exact same property test already exists:
`intersection_assignable_to_both` and
`all_type_pairs_can_be_assigned_from_their_intersection`
## Test Plan
`cargo test -p red_knot_python_semantic -- --ignored
types::property_tests::flaky`
## Summary
Implements upstream diagnostics `PT029`, `PT030`, `PT031` that function
as pytest.warns corollaries of `PT010`, `PT011`, `PT012` respectively.
Most of the implementation and documentation is designed to mirror those
existing diagnostics.
Closes#14239
## Test Plan
Tests for `PT029`, `PT030`, `PT031` largely copied from `PT010`,
`PT011`, `PT012` respectively.
`cargo nextest run`
---------
Co-authored-by: Charlie Marsh <charlie.r.marsh@gmail.com>
A small PR to reduce some of the code duplication between the various
branches, make it a little more readable and move the API closer to what
we already have for `KnownClass`
## Summary
The cause of this bug is from
https://github.com/astral-sh/ruff/pull/12575 which was itself a bug fix
but the fix wasn't completely correct.
fixes: #14768
fixes: https://github.com/astral-sh/ruff-vscode/issues/644
## Test Plan
Consider the following three cells:
1.
```python
class Foo:
def __init__(self):
self.x = 1
def __str__(self):
return f"Foo({self.x})"
```
2.
```python
def hello():
print("hello world")
```
3.
```python
y = 1
```
The test case is moving cell 2 to the top i.e., cell 2 goes to position
1 and cell 1 goes to position 2.
Before this fix, it can be seen that the cells were pushed at the end of
the vector:
```
12.643269917s INFO ruff:main ruff_server::edit:📓 Before update: [
NotebookCell {
document: TextDocument {
contents: "class Foo:\n def __init__(self):\n self.x = 1\n\n def __str__(self):\n return f\"Foo({self.x})\"",
},
},
NotebookCell {
document: TextDocument {
contents: "def hello():\n print(\"hello world\")",
},
},
NotebookCell {
document: TextDocument {
contents: "y = 1",
},
},
]
12.643777667s INFO ruff:main ruff_server::edit:📓 After update: [
NotebookCell {
document: TextDocument {
contents: "y = 1",
},
},
NotebookCell {
document: TextDocument {
contents: "class Foo:\n def __init__(self):\n self.x = 1\n\n def __str__(self):\n return f\"Foo({self.x})\"",
},
},
NotebookCell {
document: TextDocument {
contents: "def hello():\n print(\"hello world\")",
},
},
]
```
After the fix in this PR, it can be seen that the cells are being pushed
at the correct `start` index:
```
6.520570917s INFO ruff:main ruff_server::edit:📓 Before update: [
NotebookCell {
document: TextDocument {
contents: "class Foo:\n def __init__(self):\n self.x = 1\n\n def __str__(self):\n return f\"Foo({self.x})\"",
},
},
NotebookCell {
document: TextDocument {
contents: "def hello():\n print(\"hello world\")",
},
},
NotebookCell {
document: TextDocument {
contents: "y = 1",
},
},
]
6.521084792s INFO ruff:main ruff_server::edit:📓 After update: [
NotebookCell {
document: TextDocument {
contents: "def hello():\n print(\"hello world\")",
},
},
NotebookCell {
document: TextDocument {
contents: "class Foo:\n def __init__(self):\n self.x = 1\n\n def __str__(self):\n return f\"Foo({self.x})\"",
},
},
NotebookCell {
document: TextDocument {
contents: "y = 1",
},
},
]
```
## Summary
[**Rendered version of the new test
suite**](https://github.com/astral-sh/ruff/blob/david/intersection-type-tests/crates/red_knot_python_semantic/resources/mdtest/intersection_types.md)
Moves most of our existing intersection-types tests to a dedicated
Markdown test suite, extends the test coverage, unifies the notation for
these tests, groups tests into a proper structure, and adds some
explanations for various simplification strategies.
This changeset also:
- Adds a new simplification where `~Never` is removed from
intersections.
- Adds a new simplification where adding `~object` simplifies the whole
intersection to `Never`
- Avoids unnecessary assignment-checks between inferred and declared
type. This was added to this changeset to avoid many false positive
errors in this test suite.
Resolves the task described in this old comment
[here](e01da82a5a..e7e432bca2 (r1819924085)).
## Test Plan
Running the new Markdown tests
---------
Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
Prompted by
> One nit: I think we need to consider `Any` and `Unknown` and `Todo` as
all (gradually) equivalent to each other, and thus `type & Any` and
`type & Unknown` and `type & Todo` as also equivalent. The distinction
between `Any` vs `Unknown` vs `Todo` is entirely about
provenance/debugging, there is no type level distinction. (And I've been
wondering if the `Any` vs `Unknown` distinction is really worth it.)
The thought here is that _most_ places want to treat `Any`, `Unknown`,
and `Todo` identically. So this PR simplifies things by having a single
`Type::Any` variant, and moves the provenance part into a new `AnyType`
type. If you need to treat e.g. `Todo` differently, you still can by
pattern-matching into the `AnyType`. But if you don't, you can just use
`Type::Any(_)`.
(This would also allow us to (more easily) distinguish "unknown via an
unannotated value" from "unknown because of a typing error" should we
want to do that in the future)
---------
Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
Co-authored-by: Carl Meyer <carl@astral.sh>
## Summary
This moves almost all of our existing `UnionBuilder` tests to a
Markdown-based test suite.
I see how this could be a more controversial change, since these tests
where written specifically for `UnionBuilder`, and by creating the union
types using Python type expressions, we add an additional layer on top
(parsing and inference of these expressions) that moves these tests away
from clean unit tests more in the direction of integration tests. Also,
there are probably a few implementation details of `UnionBuilder` hidden
in the test assertions (e.g. order of union elements after
simplifications).
That said, I think we would like to see all those properties that are
being tested here from *any* implementation of union types. And the
Markdown tests come with the usual advantages:
- More consice
- Better readability
- No re-compiliation when working on tests
- Easier to add additional explanations and structure to the test suite
This changeset adds a few additional tests, but keeps the logic of the
existing tests except for a few minor modifications for consistency.
---------
Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
Co-authored-by: T-256 <132141463+T-256@users.noreply.github.com>
## Summary
The symlink-approach in the typeshed-sync workflow caused some problems
on Windows, even though it seemed to work fine in CI:
https://github.com/astral-sh/ruff/pull/15138#issuecomment-2578642129
Here, we rely on `build.rs` to patch typeshed instead, which allows us
to get rid of the modifications in the workflow (thank you
@MichaReiser for the idea).
## Test Plan
- Made sure that changes to `knot_extensions.pyi` result in a recompile
of `red_knot_vendored`.
Stabilise [`slice-to-remove-prefix-or-suffix`](https://docs.astral.sh/ruff/rules/slice-to-remove-prefix-or-suffix/) (`FURB188`) for the Ruff 0.9 release.
This is a stylistic rule, but I think it's a pretty uncontroversial one. There are no open issues or PRs regarding it and it's been in preview for a while now.
More refinements to the panic messages for failing mdtests to mimic the
output of the default panic hook more closely:
- We now print out `Box<dyn Any>` if the panic payload is not a string
(which is typically the case for salsa panics).
- We now include the panic's backtrace if you set the `RUST_BACKTRACE`
environment variable.
## Summary
- Add a workflow to run property tests on a daily basis (based on
`daily_fuzz.yaml`)
- Mark `assignable_to_is_reflexive` as flaky (related to #14899)
- Add new (failing) `intersection_assignable_to_both` test (also related
to #14899)
## Test Plan
Ran:
```bash
export QUICKCHECK_TESTS=100000
while cargo test --release -p red_knot_python_semantic -- \
--ignored types::property_tests::stable; do :; done
```
Observed successful property_tests CI run
## Summary
This changeset migrates all existing `is_assignable_to` tests to a
Markdown-based test. It also increases our test coverage in a hopefully
meaningful way (not claiming to be complete in any sense). But at least
I found and fixed one bug while doing so.
## Test Plan
Ran property tests to make sure the new test succeeds after fixing it.
---------
Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
This fixes#15317. Our `catch_unwind` wrapper installs a panic hook that
captures (the rendered contents of) the panic info when a panic occurs.
Since the intent is that the caller will render the panic info in some
custom way, the hook silences the default stderr panic output.
However, the panic hook is a global resource, so if any one thread was
in the middle of a `catch_unwind` call, we would silence the default
panic output for _all_ threads.
The solution is to also keep a thread local that indicates whether the
current thread is in the middle of our `catch_unwind`, and to fall back
on the default panic hook if not.
## Test Plan
Artificially added an mdtest parse error, ran tests via `cargo test -p
red_knot_python_semantic` to run a large number of tests in parallel.
Before this patch, the panic message was swallowed as reported in
#15317. After, the panic message was shown.
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## Summary
Fix infinite loop issue reported here #15248.
The issue was caused by the break inside the if block, which caused the
flow to exit in an unforeseen way. This caused other issues, eventually
leading to an infinite loop.
Resolves#15248. Resolves#15336.
## Test Plan
Added failing code to fixture.
---------
Co-authored-by: Micha Reiser <micha@reiser.io>
Co-authored-by: dylwil3 <dylwil3@gmail.com>
## Summary
Refer to the VS Code PR
(https://github.com/astral-sh/ruff-vscode/pull/659) for details on the
change.
This PR changes the following:
1. Add tracing span for both request (request id and method name) and
notification (method name) handler
2. Remove the `RUFF_TRACE` environment variable. This was being used to
turn on / off logging for the server
3. Similarly, remove reading the `trace` value from the initialization
options
4. Remove handling the `$/setTrace` notification
5. Remove the specialized `TraceLogWriter` used for Zed and VS Code
(https://github.com/astral-sh/ruff/pull/12564)
Regarding the (5) for the Zed editor, the reason that was implemented
was because there was no way of looking at the stderr messages in the
editor which has been changed. Now, it captures the stderr as part of
the "Server Logs".
(82492d74a8/crates/language_tools/src/lsp_log.rs (L548-L552))
### Question
Regarding (1), I think having just a simple trace level message should
be good for now as the spans are not hierarchical. This could be tackled
with #12744. The difference between the two:
<details><summary>Using <code>tracing::trace</code></summary>
<p>
```
0.019243416s DEBUG ThreadId(08) ruff_server::session::index::ruff_settings: Ignored path via `exclude`: /Users/dhruv/playground/ruff/.vscode
0.026398750s INFO main ruff_server::session::index: Registering workspace: /Users/dhruv/playground/ruff
0.026802125s TRACE ruff:main ruff_server::server::api: Received notification "textDocument/didOpen"
0.026930666s TRACE ruff:main ruff_server::server::api: Received notification "textDocument/didOpen"
0.026962333s TRACE ruff:main ruff_server::server::api: Received request "textDocument/diagnostic" (1)
0.027042875s TRACE ruff:main ruff_server::server::api: Received request "textDocument/diagnostic" (2)
0.027097500s TRACE ruff:main ruff_server::server::api: Received request "textDocument/codeAction" (3)
0.027107458s DEBUG ruff:worker:0 ruff_server::resolve: Included path via `include`: /Users/dhruv/playground/ruff/lsp/play.py
0.027123541s DEBUG ruff:worker:3 ruff_server::resolve: Included path via `include`: /Users/dhruv/playground/ruff/lsp/organize_imports.py
0.027514875s INFO ruff:main ruff_server::server: Configuration file watcher successfully registered
0.285689833s TRACE ruff:main ruff_server::server::api: Received request "textDocument/codeAction" (4)
45.741101666s TRACE ruff:main ruff_server::server::api: Received notification "textDocument/didClose"
47.108745500s TRACE ruff:main ruff_server::server::api: Received notification "textDocument/didOpen"
47.109802041s TRACE ruff:main ruff_server::server::api: Received request "textDocument/diagnostic" (5)
47.109926958s TRACE ruff:main ruff_server::server::api: Received request "textDocument/codeAction" (6)
47.110027791s DEBUG ruff:worker:6 ruff_server::resolve: Included path via `include`: /Users/dhruv/playground/ruff/lsp/play.py
51.863679125s TRACE ruff:main ruff_server::server::api: Received request "textDocument/hover" (7)
```
</p>
</details>
<details><summary>Using <code>tracing::trace_span</code></summary>
<p>
Only logging the enter event:
```
0.018638750s DEBUG ThreadId(11) ruff_server::session::index::ruff_settings: Ignored path via `exclude`: /Users/dhruv/playground/ruff/.vscode
0.025895791s INFO main ruff_server::session::index: Registering workspace: /Users/dhruv/playground/ruff
0.026378791s TRACE ruff:main notification{method="textDocument/didOpen"}: ruff_server::server::api: enter
0.026531208s TRACE ruff:main notification{method="textDocument/didOpen"}: ruff_server::server::api: enter
0.026567583s TRACE ruff:main request{id=1 method="textDocument/diagnostic"}: ruff_server::server::api: enter
0.026652541s TRACE ruff:main request{id=2 method="textDocument/diagnostic"}: ruff_server::server::api: enter
0.026711041s DEBUG ruff:worker:2 ruff_server::resolve: Included path via `include`: /Users/dhruv/playground/ruff/lsp/organize_imports.py
0.026729166s DEBUG ruff:worker:1 ruff_server::resolve: Included path via `include`: /Users/dhruv/playground/ruff/lsp/play.py
0.027023083s INFO ruff:main ruff_server::server: Configuration file watcher successfully registered
5.197554750s TRACE ruff:main notification{method="textDocument/didClose"}: ruff_server::server::api: enter
6.534458000s TRACE ruff:main notification{method="textDocument/didOpen"}: ruff_server::server::api: enter
6.535027958s TRACE ruff:main request{id=3 method="textDocument/diagnostic"}: ruff_server::server::api: enter
6.535271166s DEBUG ruff:worker:3 ruff_server::resolve: Included path via `include`: /Users/dhruv/playground/ruff/lsp/organize_imports.py
6.544240583s TRACE ruff:main request{id=4 method="textDocument/codeAction"}: ruff_server::server::api: enter
7.049692458s TRACE ruff:main request{id=5 method="textDocument/codeAction"}: ruff_server::server::api: enter
7.508142541s TRACE ruff:main request{id=6 method="textDocument/hover"}: ruff_server::server::api: enter
7.872421958s TRACE ruff:main request{id=7 method="textDocument/hover"}: ruff_server::server::api: enter
8.024498583s TRACE ruff:main request{id=8 method="textDocument/codeAction"}: ruff_server::server::api: enter
13.895063666s TRACE ruff:main request{id=9 method="textDocument/codeAction"}: ruff_server::server::api: enter
14.774706083s TRACE ruff:main request{id=10 method="textDocument/hover"}: ruff_server::server::api: enter
16.058918958s TRACE ruff:main notification{method="textDocument/didChange"}: ruff_server::server::api: enter
16.060562208s TRACE ruff:main request{id=11 method="textDocument/diagnostic"}: ruff_server::server::api: enter
16.061109083s DEBUG ruff:worker:8 ruff_server::resolve: Included path via `include`: /Users/dhruv/playground/ruff/lsp/play.py
21.561742875s TRACE ruff:main notification{method="textDocument/didChange"}: ruff_server::server::api: enter
21.563573791s TRACE ruff:main request{id=12 method="textDocument/diagnostic"}: ruff_server::server::api: enter
21.564206750s DEBUG ruff:worker:4 ruff_server::resolve: Included path via `include`: /Users/dhruv/playground/ruff/lsp/play.py
21.826691375s TRACE ruff:main request{id=13 method="textDocument/codeAction"}: ruff_server::server::api: enter
22.091080125s TRACE ruff:main request{id=14 method="textDocument/codeAction"}: ruff_server::server::api: enter
```
</p>
</details>
**Todo**
- [x] Update documentation (I'll be adding a troubleshooting section
under "Editors" as a follow-up which is for all editors)
- [x] Check for backwards compatibility. I don't think this should break
backwards compatibility as it's mainly targeted towards improving the
debugging experience.
~**Before I go on to updating the documentation, I'd appreciate initial
review on the chosen approach.**~
resolves: #14959
## Test Plan
Refer to the test plan in
https://github.com/astral-sh/ruff-vscode/pull/659.
Example logs at `debug` level:
```
0.010770083s DEBUG ThreadId(15) ruff_server::session::index::ruff_settings: Ignored path via `exclude`: /Users/dhruv/playground/ruff/.vscode
0.018101916s INFO main ruff_server::session::index: Registering workspace: /Users/dhruv/playground/ruff
0.018559916s DEBUG ruff:worker:4 ruff_server::resolve: Included path via `include`: /Users/dhruv/playground/ruff/lsp/play.py
0.018992375s INFO ruff:main ruff_server::server: Configuration file watcher successfully registered
23.408802375s DEBUG ruff:worker:11 ruff_server::resolve: Included path via `include`: /Users/dhruv/playground/ruff/lsp/play.py
24.329127416s DEBUG ruff:worker:6 ruff_server::resolve: Included path via `include`: /Users/dhruv/playground/ruff/lsp/play.py
```
Example logs at `trace` level:
```
0.010296375s DEBUG ThreadId(13) ruff_server::session::index::ruff_settings: Ignored path via `exclude`: /Users/dhruv/playground/ruff/.vscode
0.017422583s INFO main ruff_server::session::index: Registering workspace: /Users/dhruv/playground/ruff
0.018034458s TRACE ruff:main notification{method="textDocument/didOpen"}: ruff_server::server::api: enter
0.018199708s TRACE ruff:worker:0 request{id=1 method="textDocument/diagnostic"}: ruff_server::server::api: enter
0.018251167s DEBUG ruff:worker:0 request{id=1 method="textDocument/diagnostic"}: ruff_server::resolve: Included path via `include`: /Users/dhruv/playground/ruff/lsp/play.py
0.018528708s INFO ruff:main ruff_server::server: Configuration file watcher successfully registered
1.611798417s TRACE ruff:worker:1 request{id=2 method="textDocument/codeAction"}: ruff_server::server::api: enter
1.861757542s TRACE ruff:worker:4 request{id=3 method="textDocument/codeAction"}: ruff_server::server::api: enter
7.027361792s TRACE ruff:worker:2 request{id=4 method="textDocument/codeAction"}: ruff_server::server::api: enter
7.851361500s TRACE ruff:worker:5 request{id=5 method="textDocument/codeAction"}: ruff_server::server::api: enter
7.901690875s TRACE ruff:main notification{method="textDocument/didChange"}: ruff_server::server::api: enter
7.903063167s TRACE ruff:worker:10 request{id=6 method="textDocument/diagnostic"}: ruff_server::server::api: enter
7.903183500s DEBUG ruff:worker:10 request{id=6 method="textDocument/diagnostic"}: ruff_server::resolve: Included path via `include`: /Users/dhruv/playground/ruff/lsp/play.py
8.702385292s TRACE ruff:main notification{method="textDocument/didChange"}: ruff_server::server::api: enter
8.704106625s TRACE ruff:worker:3 request{id=7 method="textDocument/diagnostic"}: ruff_server::server::api: enter
8.704304875s DEBUG ruff:worker:3 request{id=7 method="textDocument/diagnostic"}: ruff_server::resolve: Included path via `include`: /Users/dhruv/playground/ruff/lsp/play.py
8.966853458s TRACE ruff:worker:9 request{id=8 method="textDocument/codeAction"}: ruff_server::server::api: enter
9.229622792s TRACE ruff:worker:6 request{id=9 method="textDocument/codeAction"}: ruff_server::server::api: enter
10.513111583s TRACE ruff:worker:7 request{id=10 method="textDocument/codeAction"}: ruff_server::server::api: enter
```
## Summary
Adds a type-check-time Python API that allows us to create and
manipulate types and to test various of their properties. For example,
this can be used to write a Markdown test to make sure that `A & B` is a
subtype of `A` and `B`, but not of an unrelated class `C` (something
that requires quite a bit more code to do in Rust):
```py
from knot_extensions import Intersection, is_subtype_of, static_assert
class A: ...
class B: ...
type AB = Intersection[A, B]
static_assert(is_subtype_of(AB, A))
static_assert(is_subtype_of(AB, B))
class C: ...
static_assert(not is_subtype_of(AB, C))
```
I think this functionality is also helpful for interactive debugging
sessions, in order to query various properties of Red Knot's type
system. Which is something that otherwise requires a custom Rust unit
test, some boilerplate code and constant re-compilation.
## Test Plan
- New Markdown tests
- Tested the modified typeshed_sync workflow locally
## Summary
`Type[Any]` should be assignable to `object`. All types should be
assignable to `object`.
We specifically didn't understand the former; this PR adds a test for
it, and a case to ensure that `Type[Any]` is assignable to anything that
`type` is assignable to (which includes `object`).
This PR also adds a property test that all types are assignable to
object. In order to make it pass, I added a special case to check early
if we are assigning to `object` and just return `true`. In principle,
once we get all the more general cases correct, this special case might
be removable. But having the special case for now allows the property
test to pass.
And we add a property test that all types are subtypes of object. This
failed for the case of an intersection with no positive elements (that
is, a negation type). This really does need to be a special case for
`object`, because there is no other type we can know that a negation
type is a subtype of.
## Test Plan
Added unit test and property test.
---------
Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
When removing `int` in calls like `int(expr)` we may need to keep
parentheses around `expr` even when it is a function call or subscript,
since there may be newlines in between the function/value name and the
opening parentheses/bracket of the argument.
This PR implements that logic.
Closes#15263
---------
Co-authored-by: Charlie Marsh <charlie.r.marsh@gmail.com>
We now support class patterns in a match statement, adding a narrowing
constraint that within the body of that match arm, we can assume that
the subject is an instance of that class.
---------
Co-authored-by: Carl Meyer <carl@astral.sh>
Co-authored-by: Micha Reiser <micha@reiser.io>
## Summary
This implements checking of calls.
I ended up following Micha's original suggestion from back when the
signature representation was first introduced, and flattening it to a
single array of parameters. This turned out to be easier to manage,
because we can represent parameters using indices into that array, and
represent the bound argument types as an array of the same length.
Starred and double-starred arguments are still TODO; these won't be very
useful until we have generics.
The handling of diagnostics is just hacked into `return_ty_result`,
which was already inconsistent about whether it emitted diagnostics or
not; now it's even more inconsistent. This needs to be addressed, but
could be a follow-up.
The new benchmark errors here surface the need for intersection support
in `is_assignable_to`.
Fixes#14161.
## Test Plan
Added mdtests.
Note: `PLW0101` remains in testing rather than preview, so this PR does
not modify any public behavior (hence the title beginning with
`internal` rather than `pylint`, for the sake of the changelog.)
Fixes an error in the processing of `try` statements in the control flow
graph builder.
When processing a try statement, the block following a `return` was
forced to point to the `finally` block. However, if the return was _in_
the `finally` block, this caused the block to point to itself. In the
case where the whole `try-finally` statement was also included inside of
a loop, this caused an infinite loop in the builder for the control flow
graph as it attempted to resolve edges.
Closes#15248
## Test function
### Source
```python
def l():
while T:
try:
while ():
if 3:
break
finally:
return
```
### Control Flow Graph
```mermaid
flowchart TD
start(("Start"))
return(("End"))
block0[["`*(empty)*`"]]
block1[["Loop continue"]]
block2["return\n"]
block3[["Loop continue"]]
block4["break\n"]
block5["if 3:
break\n"]
block6["while ():
if 3:
break\n"]
block7[["Exception raised"]]
block8["try:
while ():
if 3:
break
finally:
return\n"]
block9["while T:
try:
while ():
if 3:
break
finally:
return\n"]
start --> block9
block9 -- "T" --> block8
block9 -- "else" --> block0
block8 -- "Exception raised" --> block7
block8 -- "else" --> block6
block7 --> block2
block6 -- "()" --> block5
block6 -- "else" --> block2
block5 -- "3" --> block4
block5 -- "else" --> block3
block4 --> block2
block3 --> block6
block2 --> return
block1 --> block9
block0 --> return
```
## Summary
When debugging, I frequently want to know which symbols are being looked
up. `symbol_by_id` adds tracing information, but it only shows the
`ScopedSymbolId`. Since `symbol_by_id` is only called from `symbol`, it
seems reasonable to move the tracing call one level up from
`symbol_by_id` to `symbol`, where we can also show the name of the
symbol.
**Before**:
```
6 └─┐red_knot_python_semantic::types::infer::infer_expression_types{expression=Id(60de), file=/home/shark/tomllib_modified/_parser.py}
6 └─┐red_knot_python_semantic::types::symbol_by_id{symbol=ScopedSymbolId(33)}
6 ┌─┘
6 └─┐red_knot_python_semantic::types::symbol_by_id{symbol=ScopedSymbolId(123)}
6 ┌─┘
6 └─┐red_knot_python_semantic::types::symbol_by_id{symbol=ScopedSymbolId(54)}
6 ┌─┘
6 └─┐red_knot_python_semantic::types::symbol_by_id{symbol=ScopedSymbolId(122)}
6 ┌─┘
6 └─┐red_knot_python_semantic::types::symbol_by_id{symbol=ScopedSymbolId(165)}
6 ┌─┘
6 ┌─┘
6 └─┐red_knot_python_semantic::types::symbol_by_id{symbol=ScopedSymbolId(32)}
6 ┌─┘
6 └─┐red_knot_python_semantic::types::symbol_by_id{symbol=ScopedSymbolId(232)}
6 ┌─┘
6 ┌─┘
6 ┌─┘
6┌─┘
```
**After**:
```
5 └─┐red_knot_python_semantic::types::infer::infer_expression_types{expression=Id(60de), file=/home/shark/tomllib_modified/_parser.py}
5 └─┐red_knot_python_semantic::types::symbol{name="dict"}
5 ┌─┘
5 └─┐red_knot_python_semantic::types::symbol{name="dict"}
5 ┌─┘
5 └─┐red_knot_python_semantic::types::symbol{name="list"}
5 ┌─┘
5 └─┐red_knot_python_semantic::types::symbol{name="list"}
5 ┌─┘
5 └─┐red_knot_python_semantic::types::symbol{name="isinstance"}
5 ┌─┘
5 └─┐red_knot_python_semantic::types::symbol{name="isinstance"}
5 ┌─┘
5 ┌─┘
5 └─┐red_knot_python_semantic::types::symbol{name="ValueError"}
5 ┌─┘
5 └─┐red_knot_python_semantic::types::symbol{name="ValueError"}
5 ┌─┘
5 ┌─┘
5 ┌─┘
5┌─┘
```
## Test Plan
```
cargo run --bin red_knot -- --current-directory path/to/tomllib -vvv
```
## Summary
While looking at #14899, I looked at seeing if I could get shrinking on
the examples. It turned out to be straightforward, with a couple of
caveats.
I'm calling `clone` a lot during shrinking. Since by the shrink step
we're already looking at a test failure this feels fine? Unless I
misunderstood `quickcheck`'s core loop
When shrinking `Intersection`s, in order to just rely on `quickcheck`'s
`Vec` shrinking without thinking about it too much, the shrinking
strategy is:
- try to shrink the negative side (keeping the positive side the same)
- try to shrink the positive side (keeping the negative side the same)
This means that you can't shrink from `(A & B & ~C & ~D)` directly to
`(A & ~C)`! You would first need an intermediate failure at `(A & B &
~C)` or `(A & ~C & ~D)`. This feels good enough. Shrinking the negative
side first also has the benefit of trying to strip down negative
elements in these intersections.
## Test Plan
`cargo test -p red_knot_python_semantic -- --ignored
types::property_tests::stable` still fails as it current does on `main`,
but now the errors seem more minimal.
## Summary
Adds `class-as-data-structure` rule (`B903`). Also compare pylint's `too-few-public-methods` (`PLR0903`).
Took some creative liberty with this by allowing the class to have any
decorators or base classes. There are years-old issues on pylint that
don't approve of the strictness when it comes to these things.
Especially considering that dataclass is a decorator and namedtuple _can
be_ a base class. I feel ignoring those explicitly is redundant all
things considered, but it's not a hill I'm willing to die on!
See: #970
## Test Plan
`cargo test`
---------
Co-authored-by: Micha Reiser <micha@reiser.io>
Co-authored-by: dylwil3 <dylwil3@gmail.com>
Just like in #15045 for unary expressions: In binary expressions, we
were only looking for dunder expressions for `Type::Instance` types. We
had some special cases for coercing the various `Literal` types into
their corresponding `Instance` types before doing the lookup. But we can
side-step all of that by using the existing `Type::to_meta_type` and
`Type::to_instance` methods.
## Summary
This PR upgrades zizmor to the latest release in our CI. zizmor is a
static analyzer checking for security issues in GitHub workflows. The
new release finds some new issues in our workflows; this PR fixes some
of the issues, and adds ignores for some other issues.
The issues fixed in this PR are new cases of zizmor's
[`template-injection`](https://woodruffw.github.io/zizmor/audits/#template-injection)
rule being emitted. The issues I'm ignoring for now are all to do with
the
[`cache-poisoning`](https://woodruffw.github.io/zizmor/audits/#cache-poisoning)
rule. The main reason I'm fixing some but ignoring others is that I'm
confident fixing the template-injection diagnostics won't have any
impact on how our workflows operate in CI, but I'm worried that fixing
the cache-poisoning diagnostics could slow down our CI a fair bit. I
don't mind if somebody else is motivated to try to fix these
diagnostics, but for now I think I'd prefer to just ignore them; it
doesn't seem high-priority enough to try to fix them right now :-)
## Test Plan
- `uvx pre-commit run -a --hook-stage=manual` passes locally
- Let's see if CI passes on this PR...
Resolves#14840
## Summary
Usage of ellipsis literal as default argument is allowed in stub files.
## Test Plan
Added mdtest for both python files and stub files.
---------
Co-authored-by: Carl Meyer <carl@oddbird.net>
Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
## Summary
The test expression in an `elif` clause is evaluated whether or not we
take the branch. Our control flow model for if/elif chains failed to
reflect this, causing wrong inference in cases where an assignment
expression occurs inside an `elif` test expression. Our "no branch taken
yet" snapshot (which is the starting state for every new elif branch)
can't simply be the pre-if state, it must be updated after visiting each
test expression.
Once we do this, it also means we no longer need to track a vector of
narrowing constraints to reapply for each new branch, since our "branch
not taken" state (which is the initial state for each branch) is
continuously updated to include the negative narrowing constraints of
all previous branches.
Fixes#15033.
## Test Plan
Added mdtests.
---------
Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
## Summary
We understand `sys.version_info` branches now! As such, I _believe_ this
branch is no longer required; all tests pass without it. I also ran
`QUICKCHECK_TESTS=100000 cargo test -p red_knot_python_semantic --
--ignored types::property_tests::stable`, and no tests failed except for
the known issue with `Type::is_assignable_to()`
(https://github.com/astral-sh/ruff/issues/14899)
## Test Plan
See above
This updates the mdtest harness to catch any panics that occur during
type checking, and to display the panic message as an mdtest failure.
(We don't know which specific line causes the failure, so we attribute
panics to the first line of the test case.)
The default logging level for diagnostics includes logs written using
the `log` crate with level `error`, `warn`, and `info`. An unsuccessful
fix attached to a diagnostic via `try_set_fix` or `try_set_optional_fix`
was logged at level `error`. Note that the user would see these messages
even without passing `--fix`, and possibly also on lines with `noqa`
comments.
This PR changes the logging level here to a `debug`. We also found
ad-hoc instances of error logging in the implementations of several
rules, and have replaced those with either a `debug` or call to
`try_set{_optional}_fix`.
Closes#15229
## Summary
This PR re-introduces the control-flow graph implementation which was
first introduced in #5384, and then removed in #9463 due to not being
feature complete. Mainly, it lacked the ability to process
`try`-`except` blocks, along with some more minor bugs.
Closes#8958 and #8959 and #14881.
## Overview of Changes
I will now highlight the major changes implemented in this PR, in order
of implementation.
1. Introduced a post-processing step in loop handling to find any
`continue` or `break` statements within the loop body and redirect them
appropriately.
2. Introduced a loop-continue block which is always placed at the end of
loop blocks, and ensures proper looping regardless of the internal logic
of the block. This resolves#8958.
3. Implemented `try` processing with the following logic (resolves
#8959):
1. In the example below the cfg first encounters a conditional
`ExceptionRaised` forking if an exception was (or will be) raised in the
try block. This is not possible to know (except for trivial cases) so we
assume both paths can be taken unconditionally.
2. Going down the `try` path the cfg goes `try`->`else`->`finally`
unconditionally.
3. Going down the `except` path the cfg will meet several conditional
`ExceptionCaught` which fork depending on the nature of the exception
caught. Again there's no way to know which exceptions may be raised so
both paths are assumed to be taken unconditionally.
4. If none of the exception blocks catch the exception then the cfg
terminates by raising a new exception.
5. A post-processing step is also implemented to redirect any `raises`
or `returns` within the blocks appropriately.
```python
def func():
try:
print("try")
except Exception:
print("Exception")
except OtherException as e:
print("OtherException")
else:
print("else")
finally:
print("finally")
```
```mermaid
flowchart TD
start(("Start"))
return(("End"))
block0[["`*(empty)*`"]]
block1["print(#quot;finally#quot;)\n"]
block2["print(#quot;else#quot;)\n"]
block3["print(#quot;try#quot;)\n"]
block4[["Exception raised"]]
block5["print(#quot;OtherException#quot;)\n"]
block6["try:
print(#quot;try#quot;)
except Exception:
print(#quot;Exception#quot;)
except OtherException as e:
print(#quot;OtherException#quot;)
else:
print(#quot;else#quot;)
finally:
print(#quot;finally#quot;)\n"]
block7["print(#quot;Exception#quot;)\n"]
block8["try:
print(#quot;try#quot;)
except Exception:
print(#quot;Exception#quot;)
except OtherException as e:
print(#quot;OtherException#quot;)
else:
print(#quot;else#quot;)
finally:
print(#quot;finally#quot;)\n"]
block9["try:
print(#quot;try#quot;)
except Exception:
print(#quot;Exception#quot;)
except OtherException as e:
print(#quot;OtherException#quot;)
else:
print(#quot;else#quot;)
finally:
print(#quot;finally#quot;)\n"]
start --> block9
block9 -- "Exception raised" --> block8
block9 -- "else" --> block3
block8 -- "Exception" --> block7
block8 -- "else" --> block6
block7 --> block1
block6 -- "OtherException" --> block5
block6 -- "else" --> block4
block5 --> block1
block4 --> return
block3 --> block2
block2 --> block1
block1 --> block0
block0 --> return
```
6. Implemented `with` processing with the following logic:
1. `with` statements have no conditional execution (apart from the
hidden logic handling the enter and exit), so the block is assumed to
execute unconditionally.
2. The one exception is that exceptions raised within the block may
result in control flow resuming at the end of the block. Since it is not
possible know if an exception will be raised, or if it will be handled
by the context manager, we assume that execution always continues after
`with` blocks even if the blocks contain `raise` or `return` statements.
This is handled in a post-processing step.
## Test Plan
Additional test fixtures and control-flow fixtures were added.
---------
Co-authored-by: Micha Reiser <micha@reiser.io>
Co-authored-by: dylwil3 <dylwil3@gmail.com>
## Summary
Remove `Type::tuple` in favor of `TupleType::from_elements`, avoid a few
intermediate `Vec`tors. Resolves an old [review
comment](https://github.com/astral-sh/ruff/pull/14744#discussion_r1867493706).
## Test Plan
New regression test for something I ran into while implementing this.
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## Summary
<!-- What's the purpose of the change? What does it do, and why? -->
During https://github.com/astral-sh/ruff/pull/15209, additional spaces
was accidentally added to the rule
`airflow.operators.latest_only.LatestOnlyOperator`. This PR fixes this
issue
## Test Plan
<!-- How was it tested? -->
A test fixture has been included for the rule.
## Summary
Airflow 3.0 removes various deprecated functions, members, modules, and
other values. They have been deprecated in 2.x, but the removal causes
incompatibilities that we want to detect. This PR add rules for the
following.
* Removed class attribute
* `airflow.providers_manager.ProvidersManager.dataset_factories` →
`airflow.providers_manager.ProvidersManager.asset_factories`
* `airflow.providers_manager.ProvidersManager.dataset_uri_handlers` →
`airflow.providers_manager.ProvidersManager.asset_uri_handlers`
*
`airflow.providers_manager.ProvidersManager.dataset_to_openlineage_converters`
→
`airflow.providers_manager.ProvidersManager.asset_to_openlineage_converters`
* `airflow.lineage.hook.DatasetLineageInfo.dataset` →
`airflow.lineage.hook.AssetLineageInfo.asset`
* Removed class method (subclasses in airflow should also checked)
* `airflow.secrets.base_secrets.BaseSecretsBackend.get_conn_uri` →
`airflow.secrets.base_secrets.BaseSecretsBackend.get_conn_value`
* `airflow.secrets.base_secrets.BaseSecretsBackend.get_connections` →
`airflow.secrets.base_secrets.BaseSecretsBackend.get_connection`
* `airflow.hooks.base.BaseHook.get_connections` → use `get_connection`
* `airflow.datasets.BaseDataset.iter_datasets` →
`airflow.sdk.definitions.asset.BaseAsset.iter_assets`
* `airflow.datasets.BaseDataset.iter_dataset_aliases` →
`airflow.sdk.definitions.asset.BaseAsset.iter_asset_aliases`
* Removed constructor args (subclasses in airflow should also checked)
* argument `filename_template`
in`airflow.utils.log.file_task_handler.FileTaskHandler`
* in `BaseOperator`
* `sla`
* `task_concurrency` → `max_active_tis_per_dag`
* in `BaseAuthManager`
* `appbuilder`
* Removed class variable (subclasses anywhere should be checked)
* in `airflow.plugins_manager.AirflowPlugin`
* `executors` (from #43289)
* `hooks`
* `operators`
* `sensors`
* Replaced names
* `airflow.hooks.base_hook.BaseHook` → `airflow.hooks.base.BaseHook`
* `airflow.operators.dagrun_operator.TriggerDagRunLink` →
`airflow.operators.trigger_dagrun.TriggerDagRunLink`
* `airflow.operators.dagrun_operator.TriggerDagRunOperator` →
`airflow.operators.trigger_dagrun.TriggerDagRunOperator`
* `airflow.operators.python_operator.BranchPythonOperator` →
`airflow.operators.python.BranchPythonOperator`
* `airflow.operators.python_operator.PythonOperator` →
`airflow.operators.python.PythonOperator`
* `airflow.operators.python_operator.PythonVirtualenvOperator` →
`airflow.operators.python.PythonVirtualenvOperator`
* `airflow.operators.python_operator.ShortCircuitOperator` →
`airflow.operators.python.ShortCircuitOperator`
* `airflow.operators.latest_only_operator.LatestOnlyOperator` →
`airflow.operators.latest_only.LatestOnlyOperator`
In additional to the changes above, this PR also add utility functions
and improve docstring.
## Test Plan
A test fixture is included in the PR.
## Summary
Changes two things about the entry:
* make the example valid TOML - inline tables must be a single line, at
least till v1.1.0 is released,
but also while in the future the toml version used by ruff might handle
it, it would probably be
good to stick to a spec that's readable by the vast majority of other
tools and versions as well,
especially if people are using `pyproject.toml`. The current example
leads to `ruff` failure.
See https://github.com/toml-lang/toml/pull/904
* adds a line about the ability to add non-Python files to the map,
which I think is a specific and
important feature people should know about (in fact, I would assume this
could potentially
become the single biggest use-case for this).
## Test Plan
Ran doc creation as described in the
[contribution](https://docs.astral.sh/ruff/contributing/#mkdocs) guide.
---------
Co-authored-by: Charlie Marsh <charlie.r.marsh@gmail.com>
## Summary
Part of #13773
This PR adds diagnostics when there is a length mismatch during
unpacking between the number of target expressions and the number of
types for the unpack value expression.
There are 3 cases of diagnostics here where the first two occurs when
there isn't a starred expression and the last one occurs when there's a
starred expression:
1. Number of target expressions is **less** than the number of types
that needs to be unpacked
2. Number of target expressions is **greater** then the number of types
that needs to be unpacked
3. When there's a starred expression as one of the target expression and
the number of target expressions is greater than the number of types
Examples for all each of the above cases:
```py
# red-knot: Too many values to unpack (expected 2, got 3) [lint:invalid-assignment]
a, b = (1, 2, 3)
# red-knot: Not enough values to unpack (expected 2, got 1) [lint:invalid-assignment]
a, b = (1,)
# red-knot: Not enough values to unpack (expected 3 or more, got 2) [lint:invalid-assignment]
a, *b, c, d = (1, 2)
```
The (3) case is a bit special because it uses a distinct wording
"expected n or more" instead of "expected n" because of the starred
expression.
### Location
The diagnostic location is the target expression that's being unpacked.
For nested targets, the location will be the nested expression. For
example:
```py
(a, (b, c), d) = (1, (2, 3, 4), 5)
# ^^^^^^
# red-knot: Too many values to unpack (expected 2, got 3) [lint:invalid-assignment]
```
For future improvements, it would be useful to show the context for why
this unpacking failed. For example, for why the expected number of
targets is `n`, we can highlight the relevant elements for the value
expression.
In the **ecosystem**, **Pyright** uses the target expressions for
location while **mypy** uses the value expression for the location. For
example:
```py
if 1:
# mypy: Too many values to unpack (2 expected, 3 provided) [misc]
# vvvvvvvvv
a, b = (1, 2, 3)
# ^^^^
# Pyright: Expression with type "tuple[Literal[1], Literal[2], Literal[3]]" cannot be assigned to target tuple
# Type "tuple[Literal[1], Literal[2], Literal[3]]" is incompatible with target tuple
# Tuple size mismatch; expected 2 but received 3 [reportAssignmentType]
# red-knot: Too many values to unpack (expected 2, got 3) [lint:invalid-assignment]
```
## Test Plan
Update existing test cases TODO with the error directives.
Fixes: #15176
## Summary
Neither of these rules make any sense in stub files. Technically TC007
should already not have triggered, due to the typing only context of the
binding, but it's better to be explicit.
Keeping TC008 enabled on the other hand makes sense to me, although we
could probably be more aggressive with unquoting in a typing runtime
context.
## Test Plan
`cargo nextest run`
## Summary
Ref:
3533d7f5b4 (r150651102)
This PR removes the `Ranged` implementation on `DefinitionKind` and
instead uses a method called `target_range` to avoid any confusion about
what range this is for i.e., it's not the range of the node that
represents the definition.
## Summary
Related to #13773
This PR adds support for unpacking `for` statement targets.
This involves updating the `value` field in the `Unpack` target to use
an enum which specifies the "where did the value expression came from?".
This is because for an iterable expression, we need to unpack the
iterator type while for assignment statement we need to unpack the value
type itself. And, this needs to be done in the unpack query.
### Question
One of the ways unpacking works in `for` statement is by looking at the
union of the types because if the iterable expression is a tuple then
the iterator type will be union of all the types in the tuple. This
means that the test cases that will test the unpacking in `for`
statement will also implicitly test the unpacking union logic. I was
wondering if it makes sense to merge these cases and only add the ones
that are specific to the union unpacking or for statement unpacking
logic.
## Test Plan
Add test cases involving iterating over a tuple type. I've intentionally
left out certain cases for now and I'm curious to know any thoughts on
the above query.
## Summary
Closes#14975 by modifying the docstring of the InvalidPyprojectToml
rule. Previously the docs were incorrectly stating that author name and
emails must be individual items in the authors list, rather than part of
a single object for each respective author.
## Test Plan
This was a docstring change, no tests needed.
This PR contains the following updates:
| Package | Type | Update | Change |
|---|---|---|---|
| [env_logger](https://redirect.github.com/rust-cli/env_logger) |
workspace.dependencies | patch | `0.11.5` -> `0.11.6` |
---
### Release Notes
<details>
<summary>rust-cli/env_logger (env_logger)</summary>
###
[`v0.11.6`](https://redirect.github.com/rust-cli/env_logger/blob/HEAD/CHANGELOG.md#0116---2024-12-20)
[Compare
Source](https://redirect.github.com/rust-cli/env_logger/compare/v0.11.5...v0.11.6)
##### Features
- Opt-in file and line rendering
</details>
---
### Configuration
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Automerge - At any time (no schedule defined).
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are satisfied.
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🔕 **Ignore**: Close this PR and you won't be reminded about this update
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This PR contains the following updates:
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| workspace.dependencies | patch | `0.7.7` -> `0.7.8` |
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| Package | Type | Update | Change |
|---|---|---|---|
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## Summary
This changeset adds support for precise type-inference and
boundness-handling of definitions inside control-flow branches with
statically-known conditions, i.e. test-expressions whose truthiness we
can unambiguously infer as *always false* or *always true*.
This branch also includes:
- `sys.platform` support
- statically-known branches handling for Boolean expressions and while
loops
- new `target-version` requirements in some Markdown tests which were
now required due to the understanding of `sys.version_info` branches.
closes#12700closes#15034
## Performance
### `tomllib`, -7%, needs to resolve one additional module (sys)
| Command | Mean [ms] | Min [ms] | Max [ms] | Relative |
|:---|---:|---:|---:|---:|
| `./red_knot_main --project /home/shark/tomllib` | 22.2 ± 1.3 | 19.1 |
25.6 | 1.00 |
| `./red_knot_feature --project /home/shark/tomllib` | 23.8 ± 1.6 | 20.8
| 28.6 | 1.07 ± 0.09 |
### `black`, -6%
| Command | Mean [ms] | Min [ms] | Max [ms] | Relative |
|:---|---:|---:|---:|---:|
| `./red_knot_main --project /home/shark/black` | 129.3 ± 5.1 | 119.0 |
137.8 | 1.00 |
| `./red_knot_feature --project /home/shark/black` | 136.5 ± 6.8 | 123.8
| 147.5 | 1.06 ± 0.07 |
## Test Plan
- New Markdown tests for the main feature in
`statically-known-branches.md`
- New Markdown tests for `sys.platform`
- Adapted tests for `EllipsisType`, `Never`, etc
## Summary
This PR fixes an issue where Ruff's `D403` rule
(`first-word-uncapitalized`) was not detecting some single-word edge
cases that are picked up by `pydocstyle`.
The change involves extracting the first word of the docstring by
identifying the first whitespace character. This is consistent with
`pydocstyle` which uses `.split()` - see
8d0cdfc93e/src/pydocstyle/checker.py (L581C13-L581C64)
## Example
Here is a playground example -
https://play.ruff.rs/eab9ea59-92cf-4e44-b1a9-b54b7f69b178
```py
def example1():
"""foo"""
def example2():
"""foo
Hello world!
"""
def example3():
"""foo bar
Hello world!
"""
def example4():
"""
foo
"""
def example5():
"""
foo bar
"""
```
`pydocstyle` detects all five cases:
```bash
$ pydocstyle test.py --select D403
dev/test.py:2 in public function `example1`:
D403: First word of the first line should be properly capitalized ('Foo', not 'foo')
dev/test.py:5 in public function `example2`:
D403: First word of the first line should be properly capitalized ('Foo', not 'foo')
dev/test.py:11 in public function `example3`:
D403: First word of the first line should be properly capitalized ('Foo', not 'foo')
dev/test.py:17 in public function `example4`:
D403: First word of the first line should be properly capitalized ('Foo', not 'foo')
dev/test.py:22 in public function `example5`:
D403: First word of the first line should be properly capitalized ('Foo', not 'foo')
```
Ruff (`0.8.4`) fails to catch example2 and example4.
## Test Plan
* Added two new test cases to cover the previously missed single-word
docstring cases.
## Summary
Refer:
https://github.com/astral-sh/ruff/issues/13773#issuecomment-2548020368
This PR adds support for unpacking union types.
Unpacking a union type requires us to first distribute the types for all
the targets that are involved in an unpacking. For example, if there are
two targets and a union type that needs to be unpacked, each target will
get a type from each element in the union type.
For example, if the type is `tuple[int, int] | tuple[int, str]` and the
target has two elements `(a, b)`, then
* The type of `a` will be a union of `int` and `int` which are at index
0 in the first and second tuple respectively which resolves to an `int`.
* Similarly, the type of `b` will be a union of `int` and `str` which
are at index 1 in the first and second tuple respectively which will be
`int | str`.
### Refactors
There are couple of refactors that are added in this PR:
* Add a `debug_assertion` to validate that the unpack target is a list
or a tuple
* Add a separate method to handle starred expression
## Test Plan
Update `unpacking.md` with additional test cases that uses union types.
This is done using parameter type hints style.
Thank you for taking the time to report an issue! We're glad to have you involved with Ruff.
If you're filing a bug report, please consider including the following information:
* List of keywords you searched for before creating this issue. Write them down here so that others can find this issue more easily and help provide feedback.
e.g. "RUF001", "unused variable", "Jupyter notebook"
* A minimal code snippet that reproduces the bug.
* The command you invoked (e.g., `ruff /path/to/file.py --fix`), ideally including the `--isolated` flag.
* The current Ruff settings (any relevant sections from your `pyproject.toml`).
Thank you for taking the time to report an issue! We're glad to have you involved with Ruff.
If you're filing a bug report, please consider including the following information:
* List of keywords you searched for before creating this issue. Write them down here so that others can find this issue more easily and help provide feedback.
e.g. "RUF001", "unused variable", "Jupyter notebook"
* A minimal code snippet that reproduces the bug.
* The command you invoked (e.g., `ruff /path/to/file.py --fix`), ideally including the `--isolated` flag.
* The current Ruff settings (any relevant sections from your `pyproject.toml`).
Ruff now formats your code according to the 2025 style guide. As a result, your code might now get formatted differently. See the [changelog](./CHANGELOG.md#090) for a detailed list of changes.
- \[`pyupgrade`\] Add rules to use PEP 695 generics in classes and functions (`UP046`, `UP047`) ([#15565](https://github.com/astral-sh/ruff/pull/15565), [#15659](https://github.com/astral-sh/ruff/pull/15659))
- \[`flake8-bugbear`\] Do not raise error if keyword argument is present and target-python version is less or equals than 3.9 (`B903`) ([#15549](https://github.com/astral-sh/ruff/pull/15549))
- \[`flake8-comprehensions`\] strip parentheses around generators in `unnecessary-generator-set` (`C401`) ([#15553](https://github.com/astral-sh/ruff/pull/15553))
- \[`flake8-pytest-style`\] Rewrite references to `.exception` (`PT027`) ([#15680](https://github.com/astral-sh/ruff/pull/15680))
- \[`flake8-simplify`\] Mark fixes as unsafe (`SIM201`, `SIM202`) ([#15626](https://github.com/astral-sh/ruff/pull/15626))
- \[`flake8-type-checking`\] Fix some safe fixes being labeled unsafe (`TC006`,`TC008`) ([#15638](https://github.com/astral-sh/ruff/pull/15638))
- \[`isort`\] Omit trailing whitespace in `unsorted-imports` (`I001`) ([#15518](https://github.com/astral-sh/ruff/pull/15518))
- \[`pydoclint`\] Allow ignoring one line docstrings for `DOC` rules ([#13302](https://github.com/astral-sh/ruff/pull/13302))
- \[`pyflakes`\] Apply redefinition fixes by source code order (`F811`) ([#15575](https://github.com/astral-sh/ruff/pull/15575))
- \[`pyflakes`\] Avoid removing too many imports in `redefined-while-unused` (`F811`) ([#15585](https://github.com/astral-sh/ruff/pull/15585))
- \[`pyflakes`\] Group redefinition fixes by source statement (`F811`) ([#15574](https://github.com/astral-sh/ruff/pull/15574))
- \[`pylint`\] Include name of base class in message for `redefined-slots-in-subclass` (`W0244`) ([#15559](https://github.com/astral-sh/ruff/pull/15559))
- \[`ruff`\] Update fix for `RUF055` to use `var == value` ([#15605](https://github.com/astral-sh/ruff/pull/15605))
### Formatter
- Fix bracket spacing for single-element tuples in f-string expressions ([#15537](https://github.com/astral-sh/ruff/pull/15537))
- Fix unstable f-string formatting for expressions containing a trailing comma ([#15545](https://github.com/astral-sh/ruff/pull/15545))
### Performance
- Avoid quadratic membership check in import fixes ([#15576](https://github.com/astral-sh/ruff/pull/15576))
### Server
- Allow `unsafe-fixes` settings for code actions ([#15666](https://github.com/astral-sh/ruff/pull/15666))
### Bug fixes
- \[`flake8-bandit`\] Add missing single-line/dotall regex flag (`S608`) ([#15654](https://github.com/astral-sh/ruff/pull/15654))
- \[`flake8-import-conventions`\] Fix infinite loop between `ICN001` and `I002` (`ICN001`) ([#15480](https://github.com/astral-sh/ruff/pull/15480))
- \[`flake8-simplify`\] Do not emit diagnostics for expressions inside string type annotations (`SIM222`, `SIM223`) ([#15405](https://github.com/astral-sh/ruff/pull/15405))
- \[`pyflakes`\] Treat arguments passed to the `default=` parameter of `TypeVar` as type expressions (`F821`) ([#15679](https://github.com/astral-sh/ruff/pull/15679))
- \[`pyupgrade`\] Avoid syntax error when the iterable is a non-parenthesized tuple (`UP028`) ([#15543](https://github.com/astral-sh/ruff/pull/15543))
- \[`ruff`\] Exempt `NewType` calls where the original type is immutable (`RUF009`) ([#15588](https://github.com/astral-sh/ruff/pull/15588))
- Preserve raw string prefix and escapes in all codegen fixes ([#15694](https://github.com/astral-sh/ruff/pull/15694))
### Documentation
- Generate documentation redirects for lowercase rule codes ([#15564](https://github.com/astral-sh/ruff/pull/15564))
-`TRY300`: Add some extra notes on not catching exceptions you didn't expect ([#15036](https://github.com/astral-sh/ruff/pull/15036))
## 0.9.2
### Preview features
- \[`airflow`\] Fix typo "security_managr" to "security_manager" (`AIR303`) ([#15463](https://github.com/astral-sh/ruff/pull/15463))
- \[`airflow`\] extend and fix AIR302 rules ([#15525](https://github.com/astral-sh/ruff/pull/15525))
- \[`fastapi`\] Handle parameters with `Depends` correctly (`FAST003`) ([#15364](https://github.com/astral-sh/ruff/pull/15364))
- \[`flake8-bandit`\] Check for `builtins` instead of `builtin` (`S102`, `PTH123`) ([#15443](https://github.com/astral-sh/ruff/pull/15443))
- \[`flake8-pathlib`\] Fix `--select` for `os-path-dirname` (`PTH120`) ([#15446](https://github.com/astral-sh/ruff/pull/15446))
- \[`ruff`\] Fix false positive on global keyword (`RUF052`) ([#15235](https://github.com/astral-sh/ruff/pull/15235))
## 0.9.1
### Preview features
- \[`pycodestyle`\] Run `too-many-newlines-at-end-of-file` on each cell in notebooks (`W391`) ([#15308](https://github.com/astral-sh/ruff/pull/15308))
- \[`ruff`\] Omit diagnostic for shadowed private function parameters in `used-dummy-variable` (`RUF052`) ([#15376](https://github.com/astral-sh/ruff/pull/15376))
- Preserve trailing end-of line comments for the last string literal in implicitly concatenated strings ([#15378](https://github.com/astral-sh/ruff/pull/15378))
### Server
- Fix a bug where the server and client notebooks were out of sync after reordering cells ([#15398](https://github.com/astral-sh/ruff/pull/15398))
- \[`pyupgrade`\] Handle comments and multiline expressions correctly (`UP037`) ([#15337](https://github.com/astral-sh/ruff/pull/15337))
## 0.9.0
Check out the [blog post](https://astral.sh/blog/ruff-v0.9.0) for a migration guide and overview of the changes!
### Breaking changes
Ruff now formats your code according to the 2025 style guide. As a result, your code might now get formatted differently. See the formatter section for a detailed list of changes.
This release doesn’t remove or remap any existing stable rules.
### Stabilization
The following rules have been stabilized and are no longer in preview:
- [`pytest-parametrize-names-wrong-type`](https://docs.astral.sh/ruff/rules/pytest-parametrize-names-wrong-type/) (`PT006`): Detect [`pytest.parametrize`](https://docs.pytest.org/en/7.1.x/how-to/parametrize.html#parametrize) calls outside decorators and calls with keyword arguments.
- [`module-import-not-at-top-of-file`](https://docs.astral.sh/ruff/rules/module-import-not-at-top-of-file/) (`E402`): Ignore [`pytest.importorskip`](https://docs.pytest.org/en/7.1.x/reference/reference.html#pytest-importorskip) calls between import statements.
- [`mutable-dataclass-default`](https://docs.astral.sh/ruff/rules/mutable-dataclass-default/) (`RUF008`) and [`function-call-in-dataclass-default-argument`](https://docs.astral.sh/ruff/rules/function-call-in-dataclass-default-argument/) (`RUF009`): Add support for [`attrs`](https://www.attrs.org/en/stable/).
- [`bad-version-info-comparison`](https://docs.astral.sh/ruff/rules/bad-version-info-comparison/) (`PYI006`): Extend the rule to check non-stub files.
The following fixes or improvements to fixes have been stabilized:
This release introduces the new 2025 stable style ([#13371](https://github.com/astral-sh/ruff/issues/13371)), stabilizing the following changes:
- Format expressions in f-string elements ([#7594](https://github.com/astral-sh/ruff/issues/7594))
- Alternate quotes for strings inside f-strings ([#13860](https://github.com/astral-sh/ruff/pull/13860))
- Preserve the casing of hex codes in f-string debug expressions ([#14766](https://github.com/astral-sh/ruff/issues/14766))
- Choose the quote style for each string literal in an implicitly concatenated f-string rather than for the entire string ([#13539](https://github.com/astral-sh/ruff/pull/13539))
- Automatically join an implicitly concatenated string into a single string literal if it fits on a single line ([#9457](https://github.com/astral-sh/ruff/issues/9457))
- Remove the [`ISC001`](https://docs.astral.sh/ruff/rules/single-line-implicit-string-concatenation/) incompatibility warning ([#15123](https://github.com/astral-sh/ruff/pull/15123))
- Prefer parenthesizing the `assert` message over breaking the assertion expression ([#9457](https://github.com/astral-sh/ruff/issues/9457))
- Automatically parenthesize over-long `if` guards in `match``case` clauses ([#13513](https://github.com/astral-sh/ruff/pull/13513))
- More consistent formatting for `match``case` patterns ([#6933](https://github.com/astral-sh/ruff/issues/6933))
- Avoid unnecessary parentheses around return type annotations ([#13381](https://github.com/astral-sh/ruff/pull/13381))
- Keep the opening parentheses on the same line as the `if` keyword for comprehensions where the condition has a leading comment ([#12282](https://github.com/astral-sh/ruff/pull/12282))
- More consistent formatting for `with` statements with a single context manager for Python 3.8 or older ([#10276](https://github.com/astral-sh/ruff/pull/10276))
- Correctly calculate the line-width for code blocks in docstrings when using `max-doc-code-line-length = "dynamic"` ([#13523](https://github.com/astral-sh/ruff/pull/13523))
- \[`flake8-type-checking`\] Apply `quoted-type-alias` more eagerly in `TYPE_CHECKING` blocks and ignore it in stubs (`TC008`) ([#15180](https://github.com/astral-sh/ruff/pull/15180))
- \[`pylint`\] Ignore `eq-without-hash` in stub files (`PLW1641`) ([#15310](https://github.com/astral-sh/ruff/pull/15310))
- \[`pyupgrade`\] Split `UP007` into two individual rules: `UP007` for `Union` and `UP045` for `Optional` (`UP007`, `UP045`) ([#15313](https://github.com/astral-sh/ruff/pull/15313))
- \[`ruff`\] New rule that detects classes that are both an enum and a `dataclass` (`RUF049`) ([#15299](https://github.com/astral-sh/ruff/pull/15299))
- \[`ruff`\] Recode `RUF025` to `RUF037` (`RUF037`) ([#15258](https://github.com/astral-sh/ruff/pull/15258))
### Rule changes
- \[`flake8-builtins`\] Ignore [`stdlib-module-shadowing`](https://docs.astral.sh/ruff/rules/stdlib-module-shadowing/) in stub files(`A005`) ([#15350](https://github.com/astral-sh/ruff/pull/15350))
- \[`flake8-return`\] Add support for functions returning `typing.Never` (`RET503`) ([#15298](https://github.com/astral-sh/ruff/pull/15298))
### Server
- Improve the observability by removing the need for the ["trace" value](https://microsoft.github.io/language-server-protocol/specifications/lsp/3.17/specification/#traceValue) to turn on or off logging. The server logging is solely controlled using the [`logLevel` server setting](https://docs.astral.sh/ruff/editors/settings/#loglevel)
which defaults to `info`. This addresses the issue where users were notified about an error and told to consult the log, but it didn’t contain any messages. ([#15232](https://github.com/astral-sh/ruff/pull/15232))
- Ignore diagnostics from other sources for code action requests ([#15373](https://github.com/astral-sh/ruff/pull/15373))
### CLI
- Improve the error message for `--config key=value` when the `key` is for a table and it’s a simple `value`
### Bug fixes
- \[`eradicate`\] Ignore metadata blocks directly followed by normal blocks (`ERA001`) ([#15330](https://github.com/astral-sh/ruff/pull/15330))
- \[`flake8-django`\] Recognize other magic methods (`DJ012`) ([#15365](https://github.com/astral-sh/ruff/pull/15365))
- \[`pycodestyle`\] Avoid false positives related to type aliases (`E252`) ([#15356](https://github.com/astral-sh/ruff/pull/15356))
- \[`pydocstyle`\] Avoid treating newline-separated sections as sub-sections (`D405`) ([#15311](https://github.com/astral-sh/ruff/pull/15311))
- \[`pyflakes`\] Remove call when removing final argument from `format` (`F523`) ([#15309](https://github.com/astral-sh/ruff/pull/15309))
- \[`refurb`\] Mark fix as unsafe when the right-hand side is a string (`FURB171`) ([#15273](https://github.com/astral-sh/ruff/pull/15273))
- \[`ruff`\] Treat `)` as a regex metacharacter (`RUF043`, `RUF055`) ([#15318](https://github.com/astral-sh/ruff/pull/15318))
- \[`ruff`\] Parenthesize the `int`-call argument when removing the `int` call would change semantics (`RUF046`) ([#15277](https://github.com/astral-sh/ruff/pull/15277))
- Show errors for attempted fixes only when passed `--verbose` ([#15237](https://github.com/astral-sh/ruff/pull/15237))
### Bug fixes
- \[`ruff`\] Avoid syntax error when removing int over multiple lines (`RUF046`) ([#15230](https://github.com/astral-sh/ruff/pull/15230))
- \[`pyupgrade`\] Revert "Add all PEP-585 names to `UP006` rule" ([#15250](https://github.com/astral-sh/ruff/pull/15250))
## 0.8.5
### Preview features
- \[`airflow`\] Extend names moved from core to provider (`AIR303`) ([#15145](https://github.com/astral-sh/ruff/pull/15145), [#15159](https://github.com/astral-sh/ruff/pull/15159), [#15196](https://github.com/astral-sh/ruff/pull/15196), [#15216](https://github.com/astral-sh/ruff/pull/15216))
- \[`airflow`\] Extend rule to check class attributes, methods, arguments (`AIR302`) ([#15054](https://github.com/astral-sh/ruff/pull/15054), [#15083](https://github.com/astral-sh/ruff/pull/15083))
- \[`fastapi`\] Update `FAST002` to check keyword-only arguments ([#15119](https://github.com/astral-sh/ruff/pull/15119))
- \[`flake8-type-checking`\] Disable `TC006` and `TC007` in stub files ([#15179](https://github.com/astral-sh/ruff/pull/15179))
- \[`flake8-simplify`\] More precise inference for dictionaries (`SIM300`) ([#15164](https://github.com/astral-sh/ruff/pull/15164))
- \[`flake8-use-pathlib`\] Catch redundant joins in `PTH201` and avoid syntax errors ([#15177](https://github.com/astral-sh/ruff/pull/15177))
- \[`pycodestyle`\] Preserve original value format (`E731`) ([#15097](https://github.com/astral-sh/ruff/pull/15097))
- \[`pydocstyle`\] Split on first whitespace character (`D403`) ([#15082](https://github.com/astral-sh/ruff/pull/15082))
- \[`pyupgrade`\] Add all PEP-585 names to `UP006` rule ([#5454](https://github.com/astral-sh/ruff/pull/5454))
### Configuration
- \[`flake8-type-checking`\] Improve flexibility of `runtime-evaluated-decorators` ([#15204](https://github.com/astral-sh/ruff/pull/15204))
- \[`pydocstyle`\] Add setting to ignore missing documentation for `*args` and `**kwargs` parameters (`D417`) ([#15210](https://github.com/astral-sh/ruff/pull/15210))
- \[`ruff`\] Add an allowlist for `unsafe-markup-use` (`RUF035`) ([#15076](https://github.com/astral-sh/ruff/pull/15076))
### Bug fixes
- Fix type subscript on older python versions ([#15090](https://github.com/astral-sh/ruff/pull/15090))
- Use `TypeChecker` for detecting `fastapi` routes ([#15093](https://github.com/astral-sh/ruff/pull/15093))
- \[`pycodestyle`\] Avoid false positives and negatives related to type parameter default syntax (`E225`, `E251`) ([#15214](https://github.com/astral-sh/ruff/pull/15214))
### Documentation
- Fix incorrect doc in `shebang-not-executable` (`EXE001`) and add git+windows solution to executable bit ([#15208](https://github.com/astral-sh/ruff/pull/15208))
- Rename rules currently not conforming to naming convention ([#15102](https://github.com/astral-sh/ruff/pull/15102))
You can run `poetry install` from `./scripts/benchmarks` to create a working environment for the
You can run `uv venv --project ./scripts/benchmarks`, activate the venv and then run `uv sync --project ./scripts/benchmarks` to create a working environment for the
above. All reported benchmarks were computed using the versions specified by
`./scripts/benchmarks/pyproject.toml` on Python 3.11.
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