## Summary
Similar to #6259, this PR adds a `TypeParams` node to the AST, to
capture the list of type parameters with their surrounding brackets.
If a statement lacks type parameters, the `type_params` field will be
`None`.
## Summary
This PR adds a new `Arguments` AST node, which we can use for function
calls and class definitions.
The `Arguments` node spans from the left (open) to right (close)
parentheses inclusive.
In the case of classes, the `Arguments` is an option, to differentiate
between:
```python
# None
class C: ...
# Some, with empty vectors
class C(): ...
```
In this PR, we don't really leverage this change (except that a few
rules get much simpler, since we don't need to lex to find the start and
end ranges of the parentheses, e.g.,
`crates/ruff/src/rules/pyupgrade/rules/lru_cache_without_parameters.rs`,
`crates/ruff/src/rules/pyupgrade/rules/unnecessary_class_parentheses.rs`).
In future PRs, this will be especially helpful for the formatter, since
we can track comments enclosed on the node itself.
## Test Plan
`cargo test`
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## Summary
<!-- What's the purpose of the change? What does it do, and why? -->
Before:
<img width="1031" alt="Screen Shot 2023-08-02 at 15 57 10"
src="171a21d5-01a5-4aa5-8079-4e7f8a59ade8">
After:
<img width="1031" alt="Screen Shot 2023-08-02 at 15 58 03"
src="afd1b9b7-89e0-4e38-a4a6-e3255b62f021">
## Test Plan
<!-- How was it tested? -->
Manual inspection
## Summary
This PR renames...
- `Parameter#arg` to `Parameter#name`
- `ParameterWithDefault#def` to `ParameterWithDefault#parameter` (such
that `ParameterWithDefault` has a `default` and a `parameter`)
## Test Plan
`cargo test`
## Summary
This PR renames a few AST nodes for clarity:
- `Arguments` is now `Parameters`
- `Arg` is now `Parameter`
- `ArgWithDefault` is now `ParameterWithDefault`
For now, the attribute names that reference `Parameters` directly are
changed (e.g., on `StmtFunctionDef`), but the attributes on `Parameters`
itself are not (e.g., `vararg`). We may revisit that decision in the
future.
For context, the AST node formerly known as `Arguments` is used in
function definitions. Formally (outside of the Python context),
"arguments" typically refers to "the values passed to a function", while
"parameters" typically refers to "the variables used in a function
definition". E.g., if you Google "arguments vs parameters", you'll get
some explanation like:
> A parameter is a variable in a function definition. It is a
placeholder and hence does not have a concrete value. An argument is a
value passed during function invocation.
We're thus deviating from Python's nomenclature in favor of a scheme
that we find to be more precise.
## Summary
Black allows up to one blank line _before_ a class docstring, and
enforces one blank line _after_ a class docstring. This PR implements
that handling. The cases in
`crates/ruff_python_formatter/resources/test/fixtures/ruff/statement/class_definition.py`
match Black identically.
## Summary
This PR ensures that if a function or class is the first statement in a
nested suite that _isn't_ a function or class body, we insert a leading
newline.
For example, given:
```python
def f():
if True:
def register_type():
pass
```
We _want_ to preserve the newline, whereas today, we remove it.
Note that this only applies when the function or class doesn't have any
leading comments.
Closes https://github.com/astral-sh/ruff/issues/6066.
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## Summary
This PR removes the `Interactive` and `FunctionType` parser modes that are unused by ruff
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## Test Plan
`cargo test`
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## Summary
This PR removes the `type_comment` field which our parser doesn't support.
<!-- What's the purpose of the change? What does it do, and why? -->
## Test Plan
`cargo test`
<!-- How was it tested? -->
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## Summary
This PR removes the type ignore node from the AST because our parser doesn't support it, and just having it around is confusing.
<!-- What's the purpose of the change? What does it do, and why? -->
## Test Plan
`cargo build`
<!-- How was it tested? -->
**Summary** Allow passing any node to `CommentPlacement::{leading,
trailing, dangling}` without manually converting. Conversely, Restrict
the comment to the only type we actually pass.
**Test Plan** No changes.
## Summary
Previously, given:
```python
a = \
5;
```
When detecting continuations starting at the offset of the `;`, we'd
flag the previous line as a continuation. We should only flag a
continuation if there isn't leading content prior to the offset.
Closes https://github.com/astral-sh/ruff/issues/6214
## Summary
This PR moves the "insert empty lines" behavior out of
`JoinNodesBuilder` and into the `Suite` formatter. I find it a little
confusing that the logic is split between those two formatters right
now, and since this is _only_ used in that one place, IMO it is a bit
simpler to just inline it and use a single approach to tracking state
(right now, both are stateful).
The only other place this was used was for decorators. As a side effect,
we now remove blank lines in both of these cases, which is a known but
intentional deviation from Black (which preserves the empty line before
the comment in the first case):
```python
@foo
# Hello
@bar
def baz():
pass
@foo
@bar
def baz():
pass
```
## Summary
Very subtle bug related to the AST traversal. Given:
```python
from __future__ import annotations
from logging import getLogger
__all__ = ("getLogger",)
def foo() -> None:
pass
```
We end up visiting the `-> None` annotation, then reusing the state
snapshot when we go to visit the `__all__` exports, so when we visit
`"getLogger"`, we think we're inside of a deferred type annotation.
This PR changes all the deferred visitors to snapshot and restore the
state, which is a lot safer -- that way, the visitors avoid modifying
the current visitor state. (Previously, they implicitly left the visitor
state set to the state of the _last_ thing they visited.)
Closes https://github.com/astral-sh/ruff/issues/6207.
## Summary
[tracing](https://github.com/tokio-rs/tracing) is library for logging,
tracing and related features that has a large ecosystem. Using
[tracing-subscriber](https://docs.rs/tracing-subscriber) and
[tracing-indicatif](https://github.com/emersonford/tracing-indicatif),
we get a nice logging output that you can configure with `RUST_LOG`
(e.g. `RUST_LOG=debug`) and a live look into the formatter progress.
Default:
`RUST_LOG=debug`:
It's easy to see in this output which files take a disproportionate
amount of time.
[Peek 2023-07-30
14-35.webm](2c92db5c-1354-465b-a6bc-ddfb281d6f9d)
It opens up further integration with the tracing ecosystem,
[tracing-timing](https://docs.rs/tracing-timing/latest/tracing_timing/)
and [tokio-console](https://github.com/tokio-rs/console) can e.g. show
histograms and the json output allows us building better pipelines than
grepping a log file.
One caveat is using `parent: None` for the logging statements because
tracing subscriber does not allow deactivating the span without
reimplementing all the other log message formatting, too, and we don't
need span information, esp. since it would currently show the progress
bar span.
## Test Plan
n/a
**Summary** This includes two changes:
* Allow setting `-v` in `ruff_dev`, using the `ruff_cli` implementation
* `debug!` which ruff configuration strategy was used
This is a byproduct of debugging #6187.
**Test Plan** n/a
**Summary** This prevents us from turning `r'''\""'''` into
`r"""\"""""`, which is invalid syntax.
This PR fixes CI, which is currently broken on main (in a way that still
passes on linter PRs and allows merging formatter PRs, but it's bad to
have a job be red). Once merged, i'll make the formatted ecosystem
checks a required check.
**Test Plan** Added a regression test.
## Summary
This PR adds a new precedence level for the comprehension element. This fixes
the generator to not add parentheses around the comprehension element every
time.
The new precedence level is `COMPREHENSION_ELEMENT` and it should occur after
the `NAMED_EXPR` precedence level because named expressions are always parenthesized.
This matches the behavior of Python `ast.unparse` and tested with the
following snippet:
```python
import ast
code = ""
ast.unparse(ast.parse(code))
```
## Test Plan
Add a bunch of test cases for all the valid nodes at that position.
fixes: #5777
**Summary** Print the errors when the formatter ecosystem checks failed.
Im not happy that we current collect the log in the first place, but
this is the less invasive change and we need it to unblock reviewing
#6152.
**Test Plan**
1547787940
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## Summary
Format bytes string
Closes#6064
## Test Plan
Added a fixture based on string's one
## Summary
We have some code to ensure that if an aliased import is used, any
submodules should be marked as used too. This comment says it best:
```rust
// If the name of a submodule import is the same as an alias of another import, and the
// alias is used, then the submodule import should be marked as used too.
//
// For example, mark `pyarrow.csv` as used in:
//
// ```python
// import pyarrow as pa
// import pyarrow.csv
// print(pa.csv.read_csv("test.csv"))
// ```
```
However, it looks like when we go to look up `pyarrow` (of `import
pyarrow as pa`), we aren't checking to ensure the resolved binding is
_actually_ an import. This was causing us to attribute `print(rm.ANY)`
to `def requests_mock` here:
```python
import requests_mock as rm
def requests_mock(requests_mock: rm.Mocker):
print(rm.ANY)
```
Closes https://github.com/astral-sh/ruff/issues/6180.
## Summary
Adds `global` and `nonlocal` formatting, without the "deviation from
black" outlined in the linked issue, which I'll do separately.
See: https://github.com/astral-sh/ruff/issues/4798.
## Test Plan
Added a fixture in the Ruff-specific directory since the Black fixtures
don't seem to cover this.
## Summary
Closes https://github.com/astral-sh/ruff/issues/5781
## Test Plan
Added cases to
`crates/ruff_python_formatter/resources/test/fixtures/ruff/expression/named_expr.py`
one-by-one and adjusted the condition as needed.
## Summary
Right now, if we have two fixes that have an overlapping edit, but not
an _identical_ set of edits, they'll conflict, causing us to do another
linter traversal. Here, I've enabled the fixer to support partially
overlapping edits, which (as an example) let's us greatly reduce the
number of iterations required in the test suite.
The most common case here is that in which a bunch of edits need to
import some symbol, and then use that symbol, but in different ways. In
that case, all edits will have a common fix (to import the symbol), but
deviate in some way. With this change, we can do all of those edits in
one pass.
Note that the simplest way to enable this was to store sorted edits on
`Fix`. We don't allow modifying the edits on `Fix` once it's
constructed, so this is an easy change, and allows us to avoid a bunch
of clones and traversals later on.
Closes#5800.
## Summary
If a file has a BOM, the import sorter _always_ reports the imports as
unsorted. The acute issue is that we detect that the line has leading
content (before the imports), which we always consider a violation.
Rather than fixing that one site, this PR instead makes `.line_start`
BOM-aware.
Fixes https://github.com/astral-sh/ruff/issues/6155.
## Summary
This PR adds a new config option for `pep8-naming` plugin called
`extend-ignore-names` which is used to extend the default values in
`ignore-names` option.
resolves: #6050
